configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # Temporary directory used for files created while
  15 # configure runs. Since it is in the build directory
  16 # we can safely blow away any previous version of it
  17 # (and we need not jump through hoops to try to delete
  18 # it when configure exits.)
  19 TMPDIR1="config-temp"
  20 rm -rf "${TMPDIR1}"
  21 mkdir -p "${TMPDIR1}"
  22 if [ $? -ne 0 ]; then
  23     echo "ERROR: failed to create temporary directory"
  24     exit 1
  25 fi
  26
  27 TMPB="qemu-conf"
  28 TMPC="${TMPDIR1}/${TMPB}.c"
  29 TMPO="${TMPDIR1}/${TMPB}.o"
  30 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
  31 TMPE="${TMPDIR1}/${TMPB}.exe"
  32 TMPMO="${TMPDIR1}/${TMPB}.mo"
  33
  34 rm -f config.log
  35
  36 # Print a helpful header at the top of config.log
  37 echo "# QEMU configure log $(date)" >> config.log
  38 printf "# Configured with:" >> config.log
  39 printf " '%s'" "$0" "$@" >> config.log
  40 echo >> config.log
  41 echo "#" >> config.log
  42
  43 print_error() {
  44     (echo
  45     echo "ERROR: $1"
  46     while test -n "$2"; do
  47         echo "       $2"
  48         shift
  49     done
  50     echo) >&2
  51 }
  52
  53 error_exit() {
  54     print_error "$@"
  55     exit 1
  56 }
  57
  58 do_compiler() {
  59     # Run the compiler, capturing its output to the log. First argument
  60     # is compiler binary to execute.
  61     local compiler="$1"
  62     shift
  63     if test -n "$BASH_VERSION"; then eval '
  64         echo >>config.log "
  65 funcs: ${FUNCNAME[*]}
  66 lines: ${BASH_LINENO[*]}"
  67     '; fi
  68     echo $compiler "$@" >> config.log
  69     $compiler "$@" >> config.log 2>&1 || return $?
  70     # Test passed. If this is an --enable-werror build, rerun
  71     # the test with -Werror and bail out if it fails. This
  72     # makes warning-generating-errors in configure test code
  73     # obvious to developers.
  74     if test "$werror" != "yes"; then
  75         return 0
  76     fi
  77     # Don't bother rerunning the compile if we were already using -Werror
  78     case "$*" in
  79         *-Werror*)
  80            return 0
  81         ;;
  82     esac
  83     echo $compiler -Werror "$@" >> config.log
  84     $compiler -Werror "$@" >> config.log 2>&1 && return $?
  85     error_exit "configure test passed without -Werror but failed with -Werror." \
  86         "This is probably a bug in the configure script. The failing command" \
  87         "will be at the bottom of config.log." \
  88         "You can run configure with --disable-werror to bypass this check."
  89 }
  90
  91 do_cc() {
  92     do_compiler "$cc" "$@"
  93 }
  94
  95 do_cxx() {
  96     do_compiler "$cxx" "$@"
  97 }
  98
  99 update_cxxflags() {
 100     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 101     # options which some versions of GCC's C++ compiler complain about
 102     # because they only make sense for C programs.
 103     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS"
 104
 105     for arg in $QEMU_CFLAGS; do
 106         case $arg in
 107             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 108             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 109                 ;;
 110             -std=gnu99)
 111                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }"-std=gnu++98"
 112                 ;;
 113             *)
 114                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 115                 ;;
 116         esac
 117     done
 118 }
 119
 120 compile_object() {
 121   local_cflags="$1"
 122   do_cc $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 123 }
 124
 125 compile_prog() {
 126   local_cflags="$1"
 127   local_ldflags="$2"
 128   do_cc $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC $LDFLAGS $local_ldflags
 129 }
 130
 131 # symbolically link $1 to $2.  Portable version of "ln -sf".
 132 symlink() {
 133   rm -rf "$2"
 134   mkdir -p "$(dirname "$2")"
 135   ln -s "$1" "$2"
 136 }
 137
 138 # check whether a command is available to this shell (may be either an
 139 # executable or a builtin)
 140 has() {
 141     type "$1" >/dev/null 2>&1
 142 }
 143
 144 # search for an executable in PATH
 145 path_of() {
 146     local_command="$1"
 147     local_ifs="$IFS"
 148     local_dir=""
 149
 150     # pathname has a dir component?
 151     if [ "${local_command#*/}" != "$local_command" ]; then
 152         if [ -x "$local_command" ] && [ ! -d "$local_command" ]; then
 153             echo "$local_command"
 154             return 0
 155         fi
 156     fi
 157     if [ -z "$local_command" ]; then
 158         return 1
 159     fi
 160
 161     IFS=:
 162     for local_dir in $PATH; do
 163         if [ -x "$local_dir/$local_command" ] && [ ! -d "$local_dir/$local_command" ]; then
 164             echo "$local_dir/$local_command"
 165             IFS="${local_ifs:-$(printf ' \t\n')}"
 166             return 0
 167         fi
 168     done
 169     # not found
 170     IFS="${local_ifs:-$(printf ' \t\n')}"
 171     return 1
 172 }
 173
 174 have_backend () {
 175     echo "$trace_backends" | grep "$1" >/dev/null
 176 }
 177
 178 glob() {
 179     eval test -z '"${1#'"$2"'}"'
 180 }
 181
 182 supported_hax_target() {
 183     test "$hax" = "yes" || return 1
 184     glob "$1" "*-softmmu" || return 1
 185     case "${1%-softmmu}" in
 186         i386|x86_64)
 187             return 0
 188         ;;
 189     esac
 190     return 1
 191 }
 192
 193 supported_kvm_target() {
 194     test "$kvm" = "yes" || return 1
 195     glob "$1" "*-softmmu" || return 1
 196     case "${1%-softmmu}:$cpu" in
 197         arm:arm | aarch64:aarch64 | \
 198         i386:i386 | i386:x86_64 | i386:x32 | \
 199         x86_64:i386 | x86_64:x86_64 | x86_64:x32 | \
 200         mips:mips | mipsel:mips | \
 201         ppc:ppc | ppc64:ppc | ppc:ppc64 | ppc64:ppc64 | ppc64:ppc64le | \
 202         s390x:s390x)
 203             return 0
 204         ;;
 205     esac
 206     return 1
 207 }
 208
 209 supported_xen_target() {
 210     test "$xen" = "yes" || return 1
 211     glob "$1" "*-softmmu" || return 1
 212     # Only i386 and x86_64 provide the xenpv machine.
 213     case "${1%-softmmu}" in
 214         i386|x86_64)
 215             return 0
 216         ;;
 217     esac
 218     return 1
 219 }
 220
 221 supported_hvf_target() {
 222     test "$hvf" = "yes" || return 1
 223     glob "$1" "*-softmmu" || return 1
 224     case "${1%-softmmu}" in
 225         x86_64)
 226             return 0
 227         ;;
 228     esac
 229     return 1
 230 }
 231
 232 supported_whpx_target() {
 233     test "$whpx" = "yes" || return 1
 234     glob "$1" "*-softmmu" || return 1
 235     case "${1%-softmmu}" in
 236         i386|x86_64)
 237             return 0
 238         ;;
 239     esac
 240     return 1
 241 }
 242
 243 supported_target() {
 244     case "$1" in
 245         *-softmmu)
 246             ;;
 247         *-linux-user)
 248             if test "$linux" != "yes"; then
 249                 print_error "Target '$target' is only available on a Linux host"
 250                 return 1
 251             fi
 252             ;;
 253         *-bsd-user)
 254             if test "$bsd" != "yes"; then
 255                 print_error "Target '$target' is only available on a BSD host"
 256                 return 1
 257             fi
 258             ;;
 259         *)
 260             print_error "Invalid target name '$target'"
 261             return 1
 262             ;;
 263     esac
 264     test "$tcg" = "yes" && return 0
 265     supported_kvm_target "$1" && return 0
 266     supported_xen_target "$1" && return 0
 267     supported_hax_target "$1" && return 0
 268     supported_hvf_target "$1" && return 0
 269     supported_whpx_target "$1" && return 0
 270     print_error "TCG disabled, but hardware accelerator not available for '$target'"
 271     return 1
 272 }
 273
 274
 275 ld_has() {
 276     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 277 }
 278
 279 # make source path absolute
 280 source_path=$(cd "$(dirname -- "$0")"; pwd)
 281
 282 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 283 then
 284   error_exit "main directory cannot contain spaces nor colons"
 285 fi
 286
 287 # default parameters
 288 cpu=""
 289 iasl="iasl"
 290 interp_prefix="/usr/gnemul/qemu-%M"
 291 static="no"
 292 cross_prefix=""
 293 audio_drv_list=""
 294 block_drv_rw_whitelist=""
 295 block_drv_ro_whitelist=""
 296 host_cc="cc"
 297 libs_softmmu=""
 298 libs_tools=""
 299 audio_pt_int=""
 300 audio_win_int=""
 301 libs_qga=""
 302 debug_info="yes"
 303 stack_protector=""
 304
 305 if test -e "$source_path/.git"
 306 then
 307     git_update=yes
 308     git_submodules="ui/keycodemapdb"
 309     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 310     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 311 else
 312     git_update=no
 313     git_submodules=""
 314
 315     if ! test -f "$source_path/ui/keycodemapdb/README"
 316     then
 317         echo
 318         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 319         echo
 320         echo "This is not a GIT checkout but module content appears to"
 321         echo "be missing. Do not use 'git archive' or GitHub download links"
 322         echo "to acquire QEMU source archives. Non-GIT builds are only"
 323         echo "supported with source archives linked from:"
 324         echo
 325         echo "  https://www.qemu.org/download/"
 326         echo
 327         echo "Developers working with GIT can use scripts/archive-source.sh"
 328         echo "if they need to create valid source archives."
 329         echo
 330         exit 1
 331     fi
 332 fi
 333 git="git"
 334
 335 # Don't accept a target_list environment variable.
 336 unset target_list
 337 unset target_list_exclude
 338
 339 # Default value for a variable defining feature "foo".
 340 #  * foo="no"  feature will only be used if --enable-foo arg is given
 341 #  * foo=""    feature will be searched for, and if found, will be used
 342 #              unless --disable-foo is given
 343 #  * foo="yes" this value will only be set by --enable-foo flag.
 344 #              feature will searched for,
 345 #              if not found, configure exits with error
 346 #
 347 # Always add --enable-foo and --disable-foo command line args.
 348 # Distributions want to ensure that several features are compiled in, and it
 349 # is impossible without a --enable-foo that exits if a feature is not found.
 350
 351 bluez=""
 352 brlapi=""
 353 curl=""
 354 curses=""
 355 docs=""
 356 fdt=""
 357 netmap="no"
 358 sdl=""
 359 sdl_image=""
 360 virtfs=""
 361 mpath=""
 362 vnc="yes"
 363 sparse="no"
 364 vde=""
 365 vnc_sasl=""
 366 vnc_jpeg=""
 367 vnc_png=""
 368 xkbcommon=""
 369 xen=""
 370 xen_ctrl_version=""
 371 xen_pci_passthrough=""
 372 linux_aio=""
 373 cap_ng=""
 374 attr=""
 375 libattr=""
 376 xfs=""
 377 tcg="yes"
 378 membarrier=""
 379 vhost_net=""
 380 vhost_crypto=""
 381 vhost_scsi=""
 382 vhost_vsock=""
 383 vhost_user=""
 384 kvm="no"
 385 hax="no"
 386 hvf="no"
 387 whpx="no"
 388 rdma=""
 389 pvrdma=""
 390 gprof="no"
 391 debug_tcg="no"
 392 debug="no"
 393 sanitizers="no"
 394 fortify_source=""
 395 strip_opt="yes"
 396 tcg_interpreter="no"
 397 bigendian="no"
 398 mingw32="no"
 399 gcov="no"
 400 gcov_tool="gcov"
 401 EXESUF=""
 402 DSOSUF=".so"
 403 LDFLAGS_SHARED="-shared"
 404 modules="no"
 405 prefix="/usr/local"
 406 mandir="\${prefix}/share/man"
 407 datadir="\${prefix}/share"
 408 firmwarepath="\${prefix}/share/qemu-firmware"
 409 qemu_docdir="\${prefix}/share/doc/qemu"
 410 bindir="\${prefix}/bin"
 411 libdir="\${prefix}/lib"
 412 libexecdir="\${prefix}/libexec"
 413 includedir="\${prefix}/include"
 414 sysconfdir="\${prefix}/etc"
 415 local_statedir="\${prefix}/var"
 416 confsuffix="/qemu"
 417 slirp=""
 418 oss_lib=""
 419 bsd="no"
 420 linux="no"
 421 solaris="no"
 422 profiler="no"
 423 cocoa="no"
 424 softmmu="yes"
 425 linux_user="no"
 426 bsd_user="no"
 427 blobs="yes"
 428 pkgversion=""
 429 pie=""
 430 qom_cast_debug="yes"
 431 trace_backends="log"
 432 trace_file="trace"
 433 spice=""
 434 rbd=""
 435 smartcard=""
 436 libusb=""
 437 usb_redir=""
 438 opengl=""
 439 opengl_dmabuf="no"
 440 cpuid_h="no"
 441 avx2_opt=""
 442 zlib="yes"
 443 capstone=""
 444 lzo=""
 445 snappy=""
 446 bzip2=""
 447 lzfse=""
 448 guest_agent=""
 449 guest_agent_with_vss="no"
 450 guest_agent_ntddscsi="no"
 451 guest_agent_msi=""
 452 vss_win32_sdk=""
 453 win_sdk="no"
 454 want_tools="yes"
 455 libiscsi=""
 456 libnfs=""
 457 coroutine=""
 458 coroutine_pool=""
 459 debug_stack_usage="no"
 460 crypto_afalg="no"
 461 seccomp=""
 462 glusterfs=""
 463 glusterfs_xlator_opt="no"
 464 glusterfs_discard="no"
 465 glusterfs_fallocate="no"
 466 glusterfs_zerofill="no"
 467 glusterfs_ftruncate_has_stat="no"
 468 glusterfs_iocb_has_stat="no"
 469 gtk=""
 470 gtk_gl="no"
 471 tls_priority="NORMAL"
 472 gnutls=""
 473 nettle=""
 474 gcrypt=""
 475 gcrypt_hmac="no"
 476 auth_pam=""
 477 vte=""
 478 virglrenderer=""
 479 tpm=""
 480 libssh2=""
 481 live_block_migration="yes"
 482 numa=""
 483 tcmalloc="no"
 484 jemalloc="no"
 485 replication="yes"
 486 vxhs=""
 487 bochs="yes"
 488 cloop="yes"
 489 dmg="yes"
 490 qcow1="yes"
 491 vdi="yes"
 492 vvfat="yes"
 493 qed="yes"
 494 parallels="yes"
 495 sheepdog="yes"
 496 libxml2=""
 497 docker="no"
 498 debug_mutex="no"
 499 libpmem=""
 500 default_devices="yes"
 501
 502 # cross compilers defaults, can be overridden with --cross-cc-ARCH
 503 cross_cc_aarch64="aarch64-linux-gnu-gcc"
 504 cross_cc_aarch64_be="$cross_cc_aarch64"
 505 cross_cc_cflags_aarch64_be="-mbig-endian"
 506 cross_cc_arm="arm-linux-gnueabihf-gcc"
 507 cross_cc_cflags_armeb="-mbig-endian"
 508 cross_cc_i386="i386-pc-linux-gnu-gcc"
 509 cross_cc_cflags_i386=""
 510 cross_cc_ppc="powerpc-linux-gnu-gcc"
 511 cross_cc_cflags_ppc="-m32"
 512 cross_cc_ppc64="powerpc-linux-gnu-gcc"
 513 cross_cc_cflags_ppc64="-m64"
 514 cross_cc_ppc64le="powerpc64le-linux-gnu-gcc"
 515
 516 enabled_cross_compilers=""
 517
 518 supported_cpu="no"
 519 supported_os="no"
 520 bogus_os="no"
 521 malloc_trim=""
 522
 523 # parse CC options first
 524 for opt do
 525   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 526   case "$opt" in
 527   --cross-prefix=*) cross_prefix="$optarg"
 528   ;;
 529   --cc=*) CC="$optarg"
 530   ;;
 531   --cxx=*) CXX="$optarg"
 532   ;;
 533   --cpu=*) cpu="$optarg"
 534   ;;
 535   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 536   ;;
 537   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 538   ;;
 539   --extra-ldflags=*) LDFLAGS="$LDFLAGS $optarg"
 540                      EXTRA_LDFLAGS="$optarg"
 541   ;;
 542   --enable-debug-info) debug_info="yes"
 543   ;;
 544   --disable-debug-info) debug_info="no"
 545   ;;
 546   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 547   ;;
 548   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 549                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 550   ;;
 551   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 552                 eval "cross_cc_${cc_arch}=\$optarg"
 553   ;;
 554   esac
 555 done
 556 # OS specific
 557 # Using uname is really, really broken.  Once we have the right set of checks
 558 # we can eliminate its usage altogether.
 559
 560 # Preferred compiler:
 561 #  ${CC} (if set)
 562 #  ${cross_prefix}gcc (if cross-prefix specified)
 563 #  system compiler
 564 if test -z "${CC}${cross_prefix}"; then
 565   cc="$host_cc"
 566 else
 567   cc="${CC-${cross_prefix}gcc}"
 568 fi
 569
 570 if test -z "${CXX}${cross_prefix}"; then
 571   cxx="c++"
 572 else
 573   cxx="${CXX-${cross_prefix}g++}"
 574 fi
 575
 576 ar="${AR-${cross_prefix}ar}"
 577 as="${AS-${cross_prefix}as}"
 578 ccas="${CCAS-$cc}"
 579 cpp="${CPP-$cc -E}"
 580 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 581 ld="${LD-${cross_prefix}ld}"
 582 ranlib="${RANLIB-${cross_prefix}ranlib}"
 583 nm="${NM-${cross_prefix}nm}"
 584 strip="${STRIP-${cross_prefix}strip}"
 585 windres="${WINDRES-${cross_prefix}windres}"
 586 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 587 query_pkg_config() {
 588     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 589 }
 590 pkg_config=query_pkg_config
 591 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 592
 593 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 594 ARFLAGS="${ARFLAGS-rv}"
 595
 596 # default flags for all hosts
 597 # We use -fwrapv to tell the compiler that we require a C dialect where
 598 # left shift of signed integers is well defined and has the expected
 599 # 2s-complement style results. (Both clang and gcc agree that it
 600 # provides these semantics.)
 601 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv -std=gnu99 $QEMU_CFLAGS"
 602 QEMU_CFLAGS="-Wall -Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 603 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 604 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 605 QEMU_INCLUDES="-iquote . -iquote \$(SRC_PATH) -iquote \$(SRC_PATH)/accel/tcg -iquote \$(SRC_PATH)/include"
 606 if test "$debug_info" = "yes"; then
 607     CFLAGS="-g $CFLAGS"
 608     LDFLAGS="-g $LDFLAGS"
 609 fi
 610
 611 # running configure in the source tree?
 612 # we know that's the case if configure is there.
 613 if test -f "./configure"; then
 614     pwd_is_source_path="y"
 615 else
 616     pwd_is_source_path="n"
 617 fi
 618
 619 check_define() {
 620 cat > $TMPC <<EOF
 621 #if !defined($1)
 622 #error $1 not defined
 623 #endif
 624 int main(void) { return 0; }
 625 EOF
 626   compile_object
 627 }
 628
 629 check_include() {
 630 cat > $TMPC <<EOF
 631 #include <$1>
 632 int main(void) { return 0; }
 633 EOF
 634   compile_object
 635 }
 636
 637 write_c_skeleton() {
 638     cat > $TMPC <<EOF
 639 int main(void) { return 0; }
 640 EOF
 641 }
 642
 643 if check_define __linux__ ; then
 644   targetos="Linux"
 645 elif check_define _WIN32 ; then
 646   targetos='MINGW32'
 647 elif check_define __OpenBSD__ ; then
 648   targetos='OpenBSD'
 649 elif check_define __sun__ ; then
 650   targetos='SunOS'
 651 elif check_define __HAIKU__ ; then
 652   targetos='Haiku'
 653 elif check_define __FreeBSD__ ; then
 654   targetos='FreeBSD'
 655 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 656   targetos='GNU/kFreeBSD'
 657 elif check_define __DragonFly__ ; then
 658   targetos='DragonFly'
 659 elif check_define __NetBSD__; then
 660   targetos='NetBSD'
 661 elif check_define __APPLE__; then
 662   targetos='Darwin'
 663 else
 664   # This is a fatal error, but don't report it yet, because we
 665   # might be going to just print the --help text, or it might
 666   # be the result of a missing compiler.
 667   targetos='bogus'
 668   bogus_os='yes'
 669 fi
 670
 671 # Some host OSes need non-standard checks for which CPU to use.
 672 # Note that these checks are broken for cross-compilation: if you're
 673 # cross-compiling to one of these OSes then you'll need to specify
 674 # the correct CPU with the --cpu option.
 675 case $targetos in
 676 Darwin)
 677   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 678   # run 64-bit userspace code.
 679   # If the user didn't specify a CPU explicitly and the kernel says this is
 680   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 681   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 682     cpu="x86_64"
 683   fi
 684   ;;
 685 SunOS)
 686   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 687   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 688     cpu="x86_64"
 689   fi
 690 esac
 691
 692 if test ! -z "$cpu" ; then
 693   # command line argument
 694   :
 695 elif check_define __i386__ ; then
 696   cpu="i386"
 697 elif check_define __x86_64__ ; then
 698   if check_define __ILP32__ ; then
 699     cpu="x32"
 700   else
 701     cpu="x86_64"
 702   fi
 703 elif check_define __sparc__ ; then
 704   if check_define __arch64__ ; then
 705     cpu="sparc64"
 706   else
 707     cpu="sparc"
 708   fi
 709 elif check_define _ARCH_PPC ; then
 710   if check_define _ARCH_PPC64 ; then
 711     if check_define _LITTLE_ENDIAN ; then
 712       cpu="ppc64le"
 713     else
 714       cpu="ppc64"
 715     fi
 716   else
 717     cpu="ppc"
 718   fi
 719 elif check_define __mips__ ; then
 720   cpu="mips"
 721 elif check_define __s390__ ; then
 722   if check_define __s390x__ ; then
 723     cpu="s390x"
 724   else
 725     cpu="s390"
 726   fi
 727 elif check_define __riscv ; then
 728   if check_define _LP64 ; then
 729     cpu="riscv64"
 730   else
 731     cpu="riscv32"
 732   fi
 733 elif check_define __arm__ ; then
 734   cpu="arm"
 735 elif check_define __aarch64__ ; then
 736   cpu="aarch64"
 737 else
 738   cpu=$(uname -m)
 739 fi
 740
 741 ARCH=
 742 # Normalise host CPU name and set ARCH.
 743 # Note that this case should only have supported host CPUs, not guests.
 744 case "$cpu" in
 745   ppc|ppc64|s390|s390x|sparc64|x32|riscv32|riscv64)
 746     supported_cpu="yes"
 747     eval "cross_cc_${cpu}=\$host_cc"
 748   ;;
 749   ppc64le)
 750     ARCH="ppc64"
 751     supported_cpu="yes"
 752     cross_cc_ppc64le=$host_cc
 753   ;;
 754   i386|i486|i586|i686|i86pc|BePC)
 755     cpu="i386"
 756     supported_cpu="yes"
 757     cross_cc_i386=$host_cc
 758   ;;
 759   x86_64|amd64)
 760     cpu="x86_64"
 761     supported_cpu="yes"
 762     cross_cc_x86_64=$host_cc
 763   ;;
 764   armv*b|armv*l|arm)
 765     cpu="arm"
 766     supported_cpu="yes"
 767     cross_cc_arm=$host_cc
 768   ;;
 769   aarch64)
 770     cpu="aarch64"
 771     supported_cpu="yes"
 772     cross_cc_aarch64=$host_cc
 773   ;;
 774   mips*)
 775     cpu="mips"
 776     supported_cpu="yes"
 777     cross_cc_mips=$host_cc
 778   ;;
 779   sparc|sun4[cdmuv])
 780     cpu="sparc"
 781     supported_cpu="yes"
 782     cross_cc_sparc=$host_cc
 783   ;;
 784   *)
 785     # This will result in either an error or falling back to TCI later
 786     ARCH=unknown
 787   ;;
 788 esac
 789 if test -z "$ARCH"; then
 790   ARCH="$cpu"
 791 fi
 792
 793 # OS specific
 794
 795 # host *BSD for user mode
 796 HOST_VARIANT_DIR=""
 797
 798 case $targetos in
 799 MINGW32*)
 800   mingw32="yes"
 801   hax="yes"
 802   vhost_user="no"
 803   audio_possible_drivers="dsound sdl"
 804   if check_include dsound.h; then
 805     audio_drv_list="dsound"
 806   else
 807     audio_drv_list=""
 808   fi
 809   supported_os="yes"
 810 ;;
 811 GNU/kFreeBSD)
 812   bsd="yes"
 813   audio_drv_list="oss try-sdl"
 814   audio_possible_drivers="oss sdl pa"
 815 ;;
 816 FreeBSD)
 817   bsd="yes"
 818   make="${MAKE-gmake}"
 819   audio_drv_list="oss try-sdl"
 820   audio_possible_drivers="oss sdl pa"
 821   # needed for kinfo_getvmmap(3) in libutil.h
 822   LIBS="-lutil $LIBS"
 823   # needed for kinfo_getproc
 824   libs_qga="-lutil $libs_qga"
 825   netmap=""  # enable netmap autodetect
 826   HOST_VARIANT_DIR="freebsd"
 827   supported_os="yes"
 828 ;;
 829 DragonFly)
 830   bsd="yes"
 831   make="${MAKE-gmake}"
 832   audio_drv_list="oss try-sdl"
 833   audio_possible_drivers="oss sdl pa"
 834   HOST_VARIANT_DIR="dragonfly"
 835 ;;
 836 NetBSD)
 837   bsd="yes"
 838   hax="yes"
 839   make="${MAKE-gmake}"
 840   audio_drv_list="oss try-sdl"
 841   audio_possible_drivers="oss sdl"
 842   oss_lib="-lossaudio"
 843   HOST_VARIANT_DIR="netbsd"
 844   supported_os="yes"
 845 ;;
 846 OpenBSD)
 847   bsd="yes"
 848   make="${MAKE-gmake}"
 849   audio_drv_list="try-sdl"
 850   audio_possible_drivers="sdl"
 851   HOST_VARIANT_DIR="openbsd"
 852   supported_os="yes"
 853 ;;
 854 Darwin)
 855   bsd="yes"
 856   darwin="yes"
 857   hax="yes"
 858   hvf="yes"
 859   LDFLAGS_SHARED="-bundle -undefined dynamic_lookup"
 860   if [ "$cpu" = "x86_64" ] ; then
 861     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 862     LDFLAGS="-arch x86_64 $LDFLAGS"
 863   fi
 864   cocoa="yes"
 865   audio_drv_list="coreaudio try-sdl"
 866   audio_possible_drivers="coreaudio sdl"
 867   LDFLAGS="-framework CoreFoundation -framework IOKit $LDFLAGS"
 868   libs_softmmu="-F/System/Library/Frameworks -framework Cocoa -framework IOKit $libs_softmmu"
 869   # Disable attempts to use ObjectiveC features in os/object.h since they
 870   # won't work when we're compiling with gcc as a C compiler.
 871   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 872   HOST_VARIANT_DIR="darwin"
 873   supported_os="yes"
 874 ;;
 875 SunOS)
 876   solaris="yes"
 877   make="${MAKE-gmake}"
 878   install="${INSTALL-ginstall}"
 879   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 880   if test -f /usr/include/sys/soundcard.h ; then
 881     audio_drv_list="oss try-sdl"
 882   fi
 883   audio_possible_drivers="oss sdl"
 884 # needed for CMSG_ macros in sys/socket.h
 885   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 886 # needed for TIOCWIN* defines in termios.h
 887   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 888   QEMU_CFLAGS="-std=gnu99 $QEMU_CFLAGS"
 889   solarisnetlibs="-lsocket -lnsl -lresolv"
 890   LIBS="$solarisnetlibs $LIBS"
 891   libs_qga="$solarisnetlibs $libs_qga"
 892 ;;
 893 Haiku)
 894   haiku="yes"
 895   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS $QEMU_CFLAGS"
 896   LIBS="-lposix_error_mapper -lnetwork $LIBS"
 897 ;;
 898 Linux)
 899   audio_drv_list="try-pa oss"
 900   audio_possible_drivers="oss alsa sdl pa"
 901   linux="yes"
 902   linux_user="yes"
 903   kvm="yes"
 904   QEMU_INCLUDES="-I\$(SRC_PATH)/linux-headers -I$PWD/linux-headers $QEMU_INCLUDES"
 905   supported_os="yes"
 906   libudev="yes"
 907 ;;
 908 esac
 909
 910 if [ "$bsd" = "yes" ] ; then
 911   if [ "$darwin" != "yes" ] ; then
 912     bsd_user="yes"
 913   fi
 914 fi
 915
 916 : ${make=${MAKE-make}}
 917 : ${install=${INSTALL-install}}
 918 # We prefer python 3.x. A bare 'python' is traditionally
 919 # python 2.x, but some distros have it as python 3.x, so
 920 # we check that before python2
 921 python=
 922 for binary in "${PYTHON-python3}" python python2
 923 do
 924     if has "$binary"
 925     then
 926         python="$binary"
 927         break
 928     fi
 929 done
 930 : ${smbd=${SMBD-/usr/sbin/smbd}}
 931
 932 # Default objcc to clang if available, otherwise use CC
 933 if has clang; then
 934   objcc=clang
 935 else
 936   objcc="$cc"
 937 fi
 938
 939 if test "$mingw32" = "yes" ; then
 940   EXESUF=".exe"
 941   DSOSUF=".dll"
 942   # MinGW needs -mthreads for TLS and macro _MT.
 943   QEMU_CFLAGS="-mthreads $QEMU_CFLAGS"
 944   LIBS="-lwinmm -lws2_32 -liphlpapi $LIBS"
 945   write_c_skeleton;
 946   if compile_prog "" "-liberty" ; then
 947     LIBS="-liberty $LIBS"
 948   fi
 949   prefix="c:/Program Files/QEMU"
 950   mandir="\${prefix}"
 951   datadir="\${prefix}"
 952   qemu_docdir="\${prefix}"
 953   bindir="\${prefix}"
 954   sysconfdir="\${prefix}"
 955   local_statedir=
 956   confsuffix=""
 957   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 958 fi
 959
 960 werror=""
 961
 962 for opt do
 963   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 964   case "$opt" in
 965   --help|-h) show_help=yes
 966   ;;
 967   --version|-V) exec cat $source_path/VERSION
 968   ;;
 969   --prefix=*) prefix="$optarg"
 970   ;;
 971   --interp-prefix=*) interp_prefix="$optarg"
 972   ;;
 973   --cross-prefix=*)
 974   ;;
 975   --cc=*)
 976   ;;
 977   --host-cc=*) host_cc="$optarg"
 978   ;;
 979   --cxx=*)
 980   ;;
 981   --iasl=*) iasl="$optarg"
 982   ;;
 983   --objcc=*) objcc="$optarg"
 984   ;;
 985   --make=*) make="$optarg"
 986   ;;
 987   --install=*) install="$optarg"
 988   ;;
 989   --python=*) python="$optarg"
 990   ;;
 991   --gcov=*) gcov_tool="$optarg"
 992   ;;
 993   --smbd=*) smbd="$optarg"
 994   ;;
 995   --extra-cflags=*)
 996   ;;
 997   --extra-cxxflags=*)
 998   ;;
 999   --extra-ldflags=*)
1000   ;;
1001   --enable-debug-info)
1002   ;;
1003   --disable-debug-info)
1004   ;;
1005   --cross-cc-*)
1006   ;;
1007   --enable-modules)
1008       modules="yes"
1009   ;;
1010   --disable-modules)
1011       modules="no"
1012   ;;
1013   --cpu=*)
1014   ;;
1015   --target-list=*) target_list="$optarg"
1016                    if test "$target_list_exclude"; then
1017                        error_exit "Can't mix --target-list with --target-list-exclude"
1018                    fi
1019   ;;
1020   --target-list-exclude=*) target_list_exclude="$optarg"
1021                    if test "$target_list"; then
1022                        error_exit "Can't mix --target-list-exclude with --target-list"
1023                    fi
1024   ;;
1025   --enable-trace-backends=*) trace_backends="$optarg"
1026   ;;
1027   # XXX: backwards compatibility
1028   --enable-trace-backend=*) trace_backends="$optarg"
1029   ;;
1030   --with-trace-file=*) trace_file="$optarg"
1031   ;;
1032   --with-default-devices) default_devices="yes"
1033   ;;
1034   --without-default-devices) default_devices="no"
1035   ;;
1036   --enable-gprof) gprof="yes"
1037   ;;
1038   --enable-gcov) gcov="yes"
1039   ;;
1040   --static)
1041     static="yes"
1042     LDFLAGS="-static $LDFLAGS"
1043     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
1044   ;;
1045   --mandir=*) mandir="$optarg"
1046   ;;
1047   --bindir=*) bindir="$optarg"
1048   ;;
1049   --libdir=*) libdir="$optarg"
1050   ;;
1051   --libexecdir=*) libexecdir="$optarg"
1052   ;;
1053   --includedir=*) includedir="$optarg"
1054   ;;
1055   --datadir=*) datadir="$optarg"
1056   ;;
1057   --with-confsuffix=*) confsuffix="$optarg"
1058   ;;
1059   --docdir=*) qemu_docdir="$optarg"
1060   ;;
1061   --sysconfdir=*) sysconfdir="$optarg"
1062   ;;
1063   --localstatedir=*) local_statedir="$optarg"
1064   ;;
1065   --firmwarepath=*) firmwarepath="$optarg"
1066   ;;
1067   --host=*|--build=*|\
1068   --disable-dependency-tracking|\
1069   --sbindir=*|--sharedstatedir=*|\
1070   --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
1071   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
1072     # These switches are silently ignored, for compatibility with
1073     # autoconf-generated configure scripts. This allows QEMU's
1074     # configure to be used by RPM and similar macros that set
1075     # lots of directory switches by default.
1076   ;;
1077   --disable-sdl) sdl="no"
1078   ;;
1079   --enable-sdl) sdl="yes"
1080   ;;
1081   --disable-sdl-image) sdl_image="no"
1082   ;;
1083   --enable-sdl-image) sdl_image="yes"
1084   ;;
1085   --disable-qom-cast-debug) qom_cast_debug="no"
1086   ;;
1087   --enable-qom-cast-debug) qom_cast_debug="yes"
1088   ;;
1089   --disable-virtfs) virtfs="no"
1090   ;;
1091   --enable-virtfs) virtfs="yes"
1092   ;;
1093   --disable-mpath) mpath="no"
1094   ;;
1095   --enable-mpath) mpath="yes"
1096   ;;
1097   --disable-vnc) vnc="no"
1098   ;;
1099   --enable-vnc) vnc="yes"
1100   ;;
1101   --oss-lib=*) oss_lib="$optarg"
1102   ;;
1103   --audio-drv-list=*) audio_drv_list="$optarg"
1104   ;;
1105   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1106   ;;
1107   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1108   ;;
1109   --enable-debug-tcg) debug_tcg="yes"
1110   ;;
1111   --disable-debug-tcg) debug_tcg="no"
1112   ;;
1113   --enable-debug)
1114       # Enable debugging options that aren't excessively noisy
1115       debug_tcg="yes"
1116       debug_mutex="yes"
1117       debug="yes"
1118       strip_opt="no"
1119       fortify_source="no"
1120   ;;
1121   --enable-sanitizers) sanitizers="yes"
1122   ;;
1123   --disable-sanitizers) sanitizers="no"
1124   ;;
1125   --enable-sparse) sparse="yes"
1126   ;;
1127   --disable-sparse) sparse="no"
1128   ;;
1129   --disable-strip) strip_opt="no"
1130   ;;
1131   --disable-vnc-sasl) vnc_sasl="no"
1132   ;;
1133   --enable-vnc-sasl) vnc_sasl="yes"
1134   ;;
1135   --disable-vnc-jpeg) vnc_jpeg="no"
1136   ;;
1137   --enable-vnc-jpeg) vnc_jpeg="yes"
1138   ;;
1139   --disable-vnc-png) vnc_png="no"
1140   ;;
1141   --enable-vnc-png) vnc_png="yes"
1142   ;;
1143   --disable-slirp) slirp="no"
1144   ;;
1145   --enable-slirp=git) slirp="git"
1146   ;;
1147   --enable-slirp=system) slirp="system"
1148   ;;
1149   --disable-vde) vde="no"
1150   ;;
1151   --enable-vde) vde="yes"
1152   ;;
1153   --disable-netmap) netmap="no"
1154   ;;
1155   --enable-netmap) netmap="yes"
1156   ;;
1157   --disable-xen) xen="no"
1158   ;;
1159   --enable-xen) xen="yes"
1160   ;;
1161   --disable-xen-pci-passthrough) xen_pci_passthrough="no"
1162   ;;
1163   --enable-xen-pci-passthrough) xen_pci_passthrough="yes"
1164   ;;
1165   --disable-brlapi) brlapi="no"
1166   ;;
1167   --enable-brlapi) brlapi="yes"
1168   ;;
1169   --disable-bluez) bluez="no"
1170   ;;
1171   --enable-bluez) bluez="yes"
1172   ;;
1173   --disable-kvm) kvm="no"
1174   ;;
1175   --enable-kvm) kvm="yes"
1176   ;;
1177   --disable-hax) hax="no"
1178   ;;
1179   --enable-hax) hax="yes"
1180   ;;
1181   --disable-hvf) hvf="no"
1182   ;;
1183   --enable-hvf) hvf="yes"
1184   ;;
1185   --disable-whpx) whpx="no"
1186   ;;
1187   --enable-whpx) whpx="yes"
1188   ;;
1189   --disable-tcg-interpreter) tcg_interpreter="no"
1190   ;;
1191   --enable-tcg-interpreter) tcg_interpreter="yes"
1192   ;;
1193   --disable-cap-ng)  cap_ng="no"
1194   ;;
1195   --enable-cap-ng) cap_ng="yes"
1196   ;;
1197   --disable-tcg) tcg="no"
1198   ;;
1199   --enable-tcg) tcg="yes"
1200   ;;
1201   --disable-malloc-trim) malloc_trim="no"
1202   ;;
1203   --enable-malloc-trim) malloc_trim="yes"
1204   ;;
1205   --disable-spice) spice="no"
1206   ;;
1207   --enable-spice) spice="yes"
1208   ;;
1209   --disable-libiscsi) libiscsi="no"
1210   ;;
1211   --enable-libiscsi) libiscsi="yes"
1212   ;;
1213   --disable-libnfs) libnfs="no"
1214   ;;
1215   --enable-libnfs) libnfs="yes"
1216   ;;
1217   --enable-profiler) profiler="yes"
1218   ;;
1219   --disable-cocoa) cocoa="no"
1220   ;;
1221   --enable-cocoa)
1222       cocoa="yes" ;
1223       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1224   ;;
1225   --disable-system) softmmu="no"
1226   ;;
1227   --enable-system) softmmu="yes"
1228   ;;
1229   --disable-user)
1230       linux_user="no" ;
1231       bsd_user="no" ;
1232   ;;
1233   --enable-user) ;;
1234   --disable-linux-user) linux_user="no"
1235   ;;
1236   --enable-linux-user) linux_user="yes"
1237   ;;
1238   --disable-bsd-user) bsd_user="no"
1239   ;;
1240   --enable-bsd-user) bsd_user="yes"
1241   ;;
1242   --enable-pie) pie="yes"
1243   ;;
1244   --disable-pie) pie="no"
1245   ;;
1246   --enable-werror) werror="yes"
1247   ;;
1248   --disable-werror) werror="no"
1249   ;;
1250   --enable-stack-protector) stack_protector="yes"
1251   ;;
1252   --disable-stack-protector) stack_protector="no"
1253   ;;
1254   --disable-curses) curses="no"
1255   ;;
1256   --enable-curses) curses="yes"
1257   ;;
1258   --disable-iconv) iconv="no"
1259   ;;
1260   --enable-iconv) iconv="yes"
1261   ;;
1262   --disable-curl) curl="no"
1263   ;;
1264   --enable-curl) curl="yes"
1265   ;;
1266   --disable-fdt) fdt="no"
1267   ;;
1268   --enable-fdt) fdt="yes"
1269   ;;
1270   --disable-linux-aio) linux_aio="no"
1271   ;;
1272   --enable-linux-aio) linux_aio="yes"
1273   ;;
1274   --disable-attr) attr="no"
1275   ;;
1276   --enable-attr) attr="yes"
1277   ;;
1278   --disable-membarrier) membarrier="no"
1279   ;;
1280   --enable-membarrier) membarrier="yes"
1281   ;;
1282   --disable-blobs) blobs="no"
1283   ;;
1284   --with-pkgversion=*) pkgversion="$optarg"
1285   ;;
1286   --with-coroutine=*) coroutine="$optarg"
1287   ;;
1288   --disable-coroutine-pool) coroutine_pool="no"
1289   ;;
1290   --enable-coroutine-pool) coroutine_pool="yes"
1291   ;;
1292   --enable-debug-stack-usage) debug_stack_usage="yes"
1293   ;;
1294   --enable-crypto-afalg) crypto_afalg="yes"
1295   ;;
1296   --disable-crypto-afalg) crypto_afalg="no"
1297   ;;
1298   --disable-docs) docs="no"
1299   ;;
1300   --enable-docs) docs="yes"
1301   ;;
1302   --disable-vhost-net) vhost_net="no"
1303   ;;
1304   --enable-vhost-net) vhost_net="yes"
1305   ;;
1306   --disable-vhost-crypto) vhost_crypto="no"
1307   ;;
1308   --enable-vhost-crypto) vhost_crypto="yes"
1309   ;;
1310   --disable-vhost-scsi) vhost_scsi="no"
1311   ;;
1312   --enable-vhost-scsi) vhost_scsi="yes"
1313   ;;
1314   --disable-vhost-vsock) vhost_vsock="no"
1315   ;;
1316   --enable-vhost-vsock) vhost_vsock="yes"
1317   ;;
1318   --disable-opengl) opengl="no"
1319   ;;
1320   --enable-opengl) opengl="yes"
1321   ;;
1322   --disable-rbd) rbd="no"
1323   ;;
1324   --enable-rbd) rbd="yes"
1325   ;;
1326   --disable-xfsctl) xfs="no"
1327   ;;
1328   --enable-xfsctl) xfs="yes"
1329   ;;
1330   --disable-smartcard) smartcard="no"
1331   ;;
1332   --enable-smartcard) smartcard="yes"
1333   ;;
1334   --disable-libusb) libusb="no"
1335   ;;
1336   --enable-libusb) libusb="yes"
1337   ;;
1338   --disable-usb-redir) usb_redir="no"
1339   ;;
1340   --enable-usb-redir) usb_redir="yes"
1341   ;;
1342   --disable-zlib-test) zlib="no"
1343   ;;
1344   --disable-lzo) lzo="no"
1345   ;;
1346   --enable-lzo) lzo="yes"
1347   ;;
1348   --disable-snappy) snappy="no"
1349   ;;
1350   --enable-snappy) snappy="yes"
1351   ;;
1352   --disable-bzip2) bzip2="no"
1353   ;;
1354   --enable-bzip2) bzip2="yes"
1355   ;;
1356   --enable-lzfse) lzfse="yes"
1357   ;;
1358   --disable-lzfse) lzfse="no"
1359   ;;
1360   --enable-guest-agent) guest_agent="yes"
1361   ;;
1362   --disable-guest-agent) guest_agent="no"
1363   ;;
1364   --enable-guest-agent-msi) guest_agent_msi="yes"
1365   ;;
1366   --disable-guest-agent-msi) guest_agent_msi="no"
1367   ;;
1368   --with-vss-sdk) vss_win32_sdk=""
1369   ;;
1370   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1371   ;;
1372   --without-vss-sdk) vss_win32_sdk="no"
1373   ;;
1374   --with-win-sdk) win_sdk=""
1375   ;;
1376   --with-win-sdk=*) win_sdk="$optarg"
1377   ;;
1378   --without-win-sdk) win_sdk="no"
1379   ;;
1380   --enable-tools) want_tools="yes"
1381   ;;
1382   --disable-tools) want_tools="no"
1383   ;;
1384   --enable-seccomp) seccomp="yes"
1385   ;;
1386   --disable-seccomp) seccomp="no"
1387   ;;
1388   --disable-glusterfs) glusterfs="no"
1389   ;;
1390   --disable-avx2) avx2_opt="no"
1391   ;;
1392   --enable-avx2) avx2_opt="yes"
1393   ;;
1394   --enable-glusterfs) glusterfs="yes"
1395   ;;
1396   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1397       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1398   ;;
1399   --enable-vhdx|--disable-vhdx)
1400       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1401   ;;
1402   --enable-uuid|--disable-uuid)
1403       echo "$0: $opt is obsolete, UUID support is always built" >&2
1404   ;;
1405   --disable-gtk) gtk="no"
1406   ;;
1407   --enable-gtk) gtk="yes"
1408   ;;
1409   --tls-priority=*) tls_priority="$optarg"
1410   ;;
1411   --disable-gnutls) gnutls="no"
1412   ;;
1413   --enable-gnutls) gnutls="yes"
1414   ;;
1415   --disable-nettle) nettle="no"
1416   ;;
1417   --enable-nettle) nettle="yes"
1418   ;;
1419   --disable-gcrypt) gcrypt="no"
1420   ;;
1421   --enable-gcrypt) gcrypt="yes"
1422   ;;
1423   --disable-auth-pam) auth_pam="no"
1424   ;;
1425   --enable-auth-pam) auth_pam="yes"
1426   ;;
1427   --enable-rdma) rdma="yes"
1428   ;;
1429   --disable-rdma) rdma="no"
1430   ;;
1431   --enable-pvrdma) pvrdma="yes"
1432   ;;
1433   --disable-pvrdma) pvrdma="no"
1434   ;;
1435   --disable-vte) vte="no"
1436   ;;
1437   --enable-vte) vte="yes"
1438   ;;
1439   --disable-virglrenderer) virglrenderer="no"
1440   ;;
1441   --enable-virglrenderer) virglrenderer="yes"
1442   ;;
1443   --disable-tpm) tpm="no"
1444   ;;
1445   --enable-tpm) tpm="yes"
1446   ;;
1447   --disable-libssh2) libssh2="no"
1448   ;;
1449   --enable-libssh2) libssh2="yes"
1450   ;;
1451   --disable-live-block-migration) live_block_migration="no"
1452   ;;
1453   --enable-live-block-migration) live_block_migration="yes"
1454   ;;
1455   --disable-numa) numa="no"
1456   ;;
1457   --enable-numa) numa="yes"
1458   ;;
1459   --disable-libxml2) libxml2="no"
1460   ;;
1461   --enable-libxml2) libxml2="yes"
1462   ;;
1463   --disable-tcmalloc) tcmalloc="no"
1464   ;;
1465   --enable-tcmalloc) tcmalloc="yes"
1466   ;;
1467   --disable-jemalloc) jemalloc="no"
1468   ;;
1469   --enable-jemalloc) jemalloc="yes"
1470   ;;
1471   --disable-replication) replication="no"
1472   ;;
1473   --enable-replication) replication="yes"
1474   ;;
1475   --disable-vxhs) vxhs="no"
1476   ;;
1477   --enable-vxhs) vxhs="yes"
1478   ;;
1479   --disable-bochs) bochs="no"
1480   ;;
1481   --enable-bochs) bochs="yes"
1482   ;;
1483   --disable-cloop) cloop="no"
1484   ;;
1485   --enable-cloop) cloop="yes"
1486   ;;
1487   --disable-dmg) dmg="no"
1488   ;;
1489   --enable-dmg) dmg="yes"
1490   ;;
1491   --disable-qcow1) qcow1="no"
1492   ;;
1493   --enable-qcow1) qcow1="yes"
1494   ;;
1495   --disable-vdi) vdi="no"
1496   ;;
1497   --enable-vdi) vdi="yes"
1498   ;;
1499   --disable-vvfat) vvfat="no"
1500   ;;
1501   --enable-vvfat) vvfat="yes"
1502   ;;
1503   --disable-qed) qed="no"
1504   ;;
1505   --enable-qed) qed="yes"
1506   ;;
1507   --disable-parallels) parallels="no"
1508   ;;
1509   --enable-parallels) parallels="yes"
1510   ;;
1511   --disable-sheepdog) sheepdog="no"
1512   ;;
1513   --enable-sheepdog) sheepdog="yes"
1514   ;;
1515   --disable-vhost-user) vhost_user="no"
1516   ;;
1517   --enable-vhost-user) vhost_user="yes"
1518   ;;
1519   --disable-vhost-kernel) vhost_kernel="no"
1520   ;;
1521   --enable-vhost-kernel) vhost_kernel="yes"
1522   ;;
1523   --disable-capstone) capstone="no"
1524   ;;
1525   --enable-capstone) capstone="yes"
1526   ;;
1527   --enable-capstone=git) capstone="git"
1528   ;;
1529   --enable-capstone=system) capstone="system"
1530   ;;
1531   --with-git=*) git="$optarg"
1532   ;;
1533   --enable-git-update) git_update=yes
1534   ;;
1535   --disable-git-update) git_update=no
1536   ;;
1537   --enable-debug-mutex) debug_mutex=yes
1538   ;;
1539   --disable-debug-mutex) debug_mutex=no
1540   ;;
1541   --enable-libpmem) libpmem=yes
1542   ;;
1543   --disable-libpmem) libpmem=no
1544   ;;
1545   *)
1546       echo "ERROR: unknown option $opt"
1547       echo "Try '$0 --help' for more information"
1548       exit 1
1549   ;;
1550   esac
1551 done
1552
1553 case "$cpu" in
1554     ppc)
1555            CPU_CFLAGS="-m32"
1556            LDFLAGS="-m32 $LDFLAGS"
1557            cross_cc_ppc=$cc
1558            cross_cc_cflags_ppc="$CPU_CFLAGS"
1559            ;;
1560     ppc64)
1561            CPU_CFLAGS="-m64"
1562            LDFLAGS="-m64 $LDFLAGS"
1563            cross_cc_ppc64=$cc
1564            cross_cc_cflags_ppc64="$CPU_CFLAGS"
1565            ;;
1566     sparc)
1567            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1568            LDFLAGS="-m32 -mv8plus $LDFLAGS"
1569            cross_cc_sparc=$cc
1570            cross_cc_cflags_sparc="$CPU_CFLAGS"
1571            ;;
1572     sparc64)
1573            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1574            LDFLAGS="-m64 $LDFLAGS"
1575            cross_cc_sparc64=$cc
1576            cross_cc_cflags_sparc64="$CPU_CFLAGS"
1577            ;;
1578     s390)
1579            CPU_CFLAGS="-m31"
1580            LDFLAGS="-m31 $LDFLAGS"
1581            cross_cc_s390=$cc
1582            cross_cc_cflags_s390="$CPU_CFLAGS"
1583            ;;
1584     s390x)
1585            CPU_CFLAGS="-m64"
1586            LDFLAGS="-m64 $LDFLAGS"
1587            cross_cc_s390x=$cc
1588            cross_cc_cflags_s390x="$CPU_CFLAGS"
1589            ;;
1590     i386)
1591            CPU_CFLAGS="-m32"
1592            LDFLAGS="-m32 $LDFLAGS"
1593            cross_cc_i386=$cc
1594            cross_cc_cflags_i386="$CPU_CFLAGS"
1595            ;;
1596     x86_64)
1597            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1598            # If we truly care, we should simply detect this case at
1599            # runtime and generate the fallback to serial emulation.
1600            CPU_CFLAGS="-m64 -mcx16"
1601            LDFLAGS="-m64 $LDFLAGS"
1602            cross_cc_x86_64=$cc
1603            cross_cc_cflags_x86_64="$CPU_CFLAGS"
1604            ;;
1605     x32)
1606            CPU_CFLAGS="-mx32"
1607            LDFLAGS="-mx32 $LDFLAGS"
1608            cross_cc_i386=$cc
1609            cross_cc_cflags_i386="$CPU_CFLAGS"
1610            ;;
1611     # No special flags required for other host CPUs
1612 esac
1613
1614 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1615
1616 # For user-mode emulation the host arch has to be one we explicitly
1617 # support, even if we're using TCI.
1618 if [ "$ARCH" = "unknown" ]; then
1619   bsd_user="no"
1620   linux_user="no"
1621 fi
1622
1623 default_target_list=""
1624
1625 mak_wilds=""
1626
1627 if [ "$softmmu" = "yes" ]; then
1628     mak_wilds="${mak_wilds} $source_path/default-configs/*-softmmu.mak"
1629 fi
1630 if [ "$linux_user" = "yes" ]; then
1631     mak_wilds="${mak_wilds} $source_path/default-configs/*-linux-user.mak"
1632 fi
1633 if [ "$bsd_user" = "yes" ]; then
1634     mak_wilds="${mak_wilds} $source_path/default-configs/*-bsd-user.mak"
1635 fi
1636
1637 if test -z "$target_list_exclude"; then
1638     for config in $mak_wilds; do
1639         default_target_list="${default_target_list} $(basename "$config" .mak)"
1640     done
1641 else
1642     exclude_list=$(echo "$target_list_exclude" | sed -e 's/,/ /g')
1643     for config in $mak_wilds; do
1644         target="$(basename "$config" .mak)"
1645         exclude="no"
1646         for excl in $exclude_list; do
1647             if test "$excl" = "$target"; then
1648                 exclude="yes"
1649                 break;
1650             fi
1651         done
1652         if test "$exclude" = "no"; then
1653             default_target_list="${default_target_list} $target"
1654         fi
1655     done
1656 fi
1657
1658 # Enumerate public trace backends for --help output
1659 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1660
1661 if test x"$show_help" = x"yes" ; then
1662 cat << EOF
1663
1664 Usage: configure [options]
1665 Options: [defaults in brackets after descriptions]
1666
1667 Standard options:
1668   --help                   print this message
1669   --prefix=PREFIX          install in PREFIX [$prefix]
1670   --interp-prefix=PREFIX   where to find shared libraries, etc.
1671                            use %M for cpu name [$interp_prefix]
1672   --target-list=LIST       set target list (default: build everything)
1673 $(echo Available targets: $default_target_list | \
1674   fold -s -w 53 | sed -e 's/^/                           /')
1675   --target-list-exclude=LIST exclude a set of targets from the default target-list
1676
1677 Advanced options (experts only):
1678   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1679   --cc=CC                  use C compiler CC [$cc]
1680   --iasl=IASL              use ACPI compiler IASL [$iasl]
1681   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1682                            build time
1683   --cxx=CXX                use C++ compiler CXX [$cxx]
1684   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1685   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1686   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1687   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1688   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1689   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1690   --make=MAKE              use specified make [$make]
1691   --install=INSTALL        use specified install [$install]
1692   --python=PYTHON          use specified python [$python]
1693   --smbd=SMBD              use specified smbd [$smbd]
1694   --with-git=GIT           use specified git [$git]
1695   --static                 enable static build [$static]
1696   --mandir=PATH            install man pages in PATH
1697   --datadir=PATH           install firmware in PATH$confsuffix
1698   --docdir=PATH            install documentation in PATH$confsuffix
1699   --bindir=PATH            install binaries in PATH
1700   --libdir=PATH            install libraries in PATH
1701   --libexecdir=PATH        install helper binaries in PATH
1702   --sysconfdir=PATH        install config in PATH$confsuffix
1703   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1704   --firmwarepath=PATH      search PATH for firmware files
1705   --with-confsuffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir [$confsuffix]
1706   --with-pkgversion=VERS   use specified string as sub-version of the package
1707   --enable-debug           enable common debug build options
1708   --enable-sanitizers      enable default sanitizers
1709   --disable-strip          disable stripping binaries
1710   --disable-werror         disable compilation abort on warning
1711   --disable-stack-protector disable compiler-provided stack protection
1712   --audio-drv-list=LIST    set audio drivers list:
1713                            Available drivers: $audio_possible_drivers
1714   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1715   --block-drv-rw-whitelist=L
1716                            set block driver read-write whitelist
1717                            (affects only QEMU, not qemu-img)
1718   --block-drv-ro-whitelist=L
1719                            set block driver read-only whitelist
1720                            (affects only QEMU, not qemu-img)
1721   --enable-trace-backends=B Set trace backend
1722                            Available backends: $trace_backend_list
1723   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1724                            Default:trace-<pid>
1725   --disable-slirp          disable SLIRP userspace network connectivity
1726   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1727   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1728   --oss-lib                path to OSS library
1729   --cpu=CPU                Build for host CPU [$cpu]
1730   --with-coroutine=BACKEND coroutine backend. Supported options:
1731                            ucontext, sigaltstack, windows
1732   --enable-gcov            enable test coverage analysis with gcov
1733   --gcov=GCOV              use specified gcov [$gcov_tool]
1734   --disable-blobs          disable installing provided firmware blobs
1735   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1736   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1737   --tls-priority           default TLS protocol/cipher priority string
1738   --enable-gprof           QEMU profiling with gprof
1739   --enable-profiler        profiler support
1740   --enable-debug-stack-usage
1741                            track the maximum stack usage of stacks created by qemu_alloc_stack
1742
1743 Optional features, enabled with --enable-FEATURE and
1744 disabled with --disable-FEATURE, default is enabled if available:
1745
1746   system          all system emulation targets
1747   user            supported user emulation targets
1748   linux-user      all linux usermode emulation targets
1749   bsd-user        all BSD usermode emulation targets
1750   docs            build documentation
1751   guest-agent     build the QEMU Guest Agent
1752   guest-agent-msi build guest agent Windows MSI installation package
1753   pie             Position Independent Executables
1754   modules         modules support
1755   debug-tcg       TCG debugging (default is disabled)
1756   debug-info      debugging information
1757   sparse          sparse checker
1758
1759   gnutls          GNUTLS cryptography support
1760   nettle          nettle cryptography support
1761   gcrypt          libgcrypt cryptography support
1762   auth-pam        PAM access control
1763   sdl             SDL UI
1764   sdl-image       SDL Image support for icons
1765   gtk             gtk UI
1766   vte             vte support for the gtk UI
1767   curses          curses UI
1768   iconv           font glyph conversion support
1769   vnc             VNC UI support
1770   vnc-sasl        SASL encryption for VNC server
1771   vnc-jpeg        JPEG lossy compression for VNC server
1772   vnc-png         PNG compression for VNC server
1773   cocoa           Cocoa UI (Mac OS X only)
1774   virtfs          VirtFS
1775   mpath           Multipath persistent reservation passthrough
1776   xen             xen backend driver support
1777   xen-pci-passthrough    PCI passthrough support for Xen
1778   brlapi          BrlAPI (Braile)
1779   curl            curl connectivity
1780   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1781   fdt             fdt device tree
1782   bluez           bluez stack connectivity
1783   kvm             KVM acceleration support
1784   hax             HAX acceleration support
1785   hvf             Hypervisor.framework acceleration support
1786   whpx            Windows Hypervisor Platform acceleration support
1787   rdma            Enable RDMA-based migration
1788   pvrdma          Enable PVRDMA support
1789   vde             support for vde network
1790   netmap          support for netmap network
1791   linux-aio       Linux AIO support
1792   cap-ng          libcap-ng support
1793   attr            attr and xattr support
1794   vhost-net       vhost-net kernel acceleration support
1795   vhost-vsock     virtio sockets device support
1796   vhost-scsi      vhost-scsi kernel target support
1797   vhost-crypto    vhost-user-crypto backend support
1798   vhost-kernel    vhost kernel backend support
1799   vhost-user      vhost-user backend support
1800   spice           spice
1801   rbd             rados block device (rbd)
1802   libiscsi        iscsi support
1803   libnfs          nfs support
1804   smartcard       smartcard support (libcacard)
1805   libusb          libusb (for usb passthrough)
1806   live-block-migration   Block migration in the main migration stream
1807   usb-redir       usb network redirection support
1808   lzo             support of lzo compression library
1809   snappy          support of snappy compression library
1810   bzip2           support of bzip2 compression library
1811                   (for reading bzip2-compressed dmg images)
1812   lzfse           support of lzfse compression library
1813                   (for reading lzfse-compressed dmg images)
1814   seccomp         seccomp support
1815   coroutine-pool  coroutine freelist (better performance)
1816   glusterfs       GlusterFS backend
1817   tpm             TPM support
1818   libssh2         ssh block device support
1819   numa            libnuma support
1820   libxml2         for Parallels image format
1821   tcmalloc        tcmalloc support
1822   jemalloc        jemalloc support
1823   avx2            AVX2 optimization support
1824   replication     replication support
1825   opengl          opengl support
1826   virglrenderer   virgl rendering support
1827   xfsctl          xfsctl support
1828   qom-cast-debug  cast debugging support
1829   tools           build qemu-io, qemu-nbd and qemu-img tools
1830   vxhs            Veritas HyperScale vDisk backend support
1831   bochs           bochs image format support
1832   cloop           cloop image format support
1833   dmg             dmg image format support
1834   qcow1           qcow v1 image format support
1835   vdi             vdi image format support
1836   vvfat           vvfat image format support
1837   qed             qed image format support
1838   parallels       parallels image format support
1839   sheepdog        sheepdog block driver support
1840   crypto-afalg    Linux AF_ALG crypto backend driver
1841   capstone        capstone disassembler support
1842   debug-mutex     mutex debugging support
1843   libpmem         libpmem support
1844
1845 NOTE: The object files are built at the place where configure is launched
1846 EOF
1847 exit 0
1848 fi
1849
1850 # Remove old dependency files to make sure that they get properly regenerated
1851 rm -f */config-devices.mak.d
1852
1853 if test -z "$python"
1854 then
1855     error_exit "Python not found. Use --python=/path/to/python"
1856 fi
1857
1858 # Note that if the Python conditional here evaluates True we will exit
1859 # with status 1 which is a shell 'false' value.
1860 if ! $python -c 'import sys; sys.exit(sys.version_info < (2,7))'; then
1861   error_exit "Cannot use '$python', Python 2 >= 2.7 or Python 3 is required." \
1862       "Use --python=/path/to/python to specify a supported Python."
1863 fi
1864
1865 # Preserve python version since some functionality is dependent on it
1866 python_version=$($python -V 2>&1 | sed -e 's/Python\ //')
1867
1868 # Suppress writing compiled files
1869 python="$python -B"
1870
1871 # Check that the C compiler works. Doing this here before testing
1872 # the host CPU ensures that we had a valid CC to autodetect the
1873 # $cpu var (and we should bail right here if that's not the case).
1874 # It also allows the help message to be printed without a CC.
1875 write_c_skeleton;
1876 if compile_object ; then
1877   : C compiler works ok
1878 else
1879     error_exit "\"$cc\" either does not exist or does not work"
1880 fi
1881 if ! compile_prog ; then
1882     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1883 fi
1884
1885 # Now we have handled --enable-tcg-interpreter and know we're not just
1886 # printing the help message, bail out if the host CPU isn't supported.
1887 if test "$ARCH" = "unknown"; then
1888     if test "$tcg_interpreter" = "yes" ; then
1889         echo "Unsupported CPU = $cpu, will use TCG with TCI (experimental)"
1890     else
1891         error_exit "Unsupported CPU = $cpu, try --enable-tcg-interpreter"
1892     fi
1893 fi
1894
1895 # Consult white-list to determine whether to enable werror
1896 # by default.  Only enable by default for git builds
1897 if test -z "$werror" ; then
1898     if test -e "$source_path/.git" && \
1899         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1900         werror="yes"
1901     else
1902         werror="no"
1903     fi
1904 fi
1905
1906 if test "$bogus_os" = "yes"; then
1907     # Now that we know that we're not printing the help and that
1908     # the compiler works (so the results of the check_defines we used
1909     # to identify the OS are reliable), if we didn't recognize the
1910     # host OS we should stop now.
1911     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1912 fi
1913
1914 # Check whether the compiler matches our minimum requirements:
1915 cat > $TMPC << EOF
1916 #if defined(__clang_major__) && defined(__clang_minor__)
1917 # ifdef __apple_build_version__
1918 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
1919 #   error You need at least XCode Clang v5.1 to compile QEMU
1920 #  endif
1921 # else
1922 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
1923 #   error You need at least Clang v3.4 to compile QEMU
1924 #  endif
1925 # endif
1926 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1927 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
1928 #  error You need at least GCC v4.8 to compile QEMU
1929 # endif
1930 #else
1931 # error You either need GCC or Clang to compiler QEMU
1932 #endif
1933 int main (void) { return 0; }
1934 EOF
1935 if ! compile_prog "" "" ; then
1936     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
1937 fi
1938
1939 gcc_flags="-Wold-style-declaration -Wold-style-definition -Wtype-limits"
1940 gcc_flags="-Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers $gcc_flags"
1941 gcc_flags="-Wno-missing-include-dirs -Wempty-body -Wnested-externs $gcc_flags"
1942 gcc_flags="-Wendif-labels -Wno-shift-negative-value $gcc_flags"
1943 gcc_flags="-Wno-initializer-overrides -Wexpansion-to-defined $gcc_flags"
1944 gcc_flags="-Wno-string-plus-int -Wno-typedef-redefinition $gcc_flags"
1945 # Note that we do not add -Werror to gcc_flags here, because that would
1946 # enable it for all configure tests. If a configure test failed due
1947 # to -Werror this would just silently disable some features,
1948 # so it's too error prone.
1949
1950 cc_has_warning_flag() {
1951     write_c_skeleton;
1952
1953     # Use the positive sense of the flag when testing for -Wno-wombat
1954     # support (gcc will happily accept the -Wno- form of unknown
1955     # warning options).
1956     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1957     compile_prog "-Werror $optflag" ""
1958 }
1959
1960 for flag in $gcc_flags; do
1961     if cc_has_warning_flag $flag ; then
1962         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1963     fi
1964 done
1965
1966 if test "$stack_protector" != "no"; then
1967   cat > $TMPC << EOF
1968 int main(int argc, char *argv[])
1969 {
1970     char arr[64], *p = arr, *c = argv[0];
1971     while (*c) {
1972         *p++ = *c++;
1973     }
1974     return 0;
1975 }
1976 EOF
1977   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1978   sp_on=0
1979   for flag in $gcc_flags; do
1980     # We need to check both a compile and a link, since some compiler
1981     # setups fail only on a .c->.o compile and some only at link time
1982     if do_cc $QEMU_CFLAGS -Werror $flag -c -o $TMPO $TMPC &&
1983        compile_prog "-Werror $flag" ""; then
1984       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1985       sp_on=1
1986       break
1987     fi
1988   done
1989   if test "$stack_protector" = yes; then
1990     if test $sp_on = 0; then
1991       error_exit "Stack protector not supported"
1992     fi
1993   fi
1994 fi
1995
1996 # Disable -Wmissing-braces on older compilers that warn even for
1997 # the "universal" C zero initializer {0}.
1998 cat > $TMPC << EOF
1999 struct {
2000   int a[2];
2001 } x = {0};
2002 EOF
2003 if compile_object "-Werror" "" ; then
2004   :
2005 else
2006   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2007 fi
2008
2009 # Static linking is not possible with modules or PIE
2010 if test "$static" = "yes" ; then
2011   if test "$modules" = "yes" ; then
2012     error_exit "static and modules are mutually incompatible"
2013   fi
2014   if test "$pie" = "yes" ; then
2015     error_exit "static and pie are mutually incompatible"
2016   else
2017     pie="no"
2018   fi
2019 fi
2020
2021 # Unconditional check for compiler __thread support
2022   cat > $TMPC << EOF
2023 static __thread int tls_var;
2024 int main(void) { return tls_var; }
2025 EOF
2026
2027 if ! compile_prog "-Werror" "" ; then
2028     error_exit "Your compiler does not support the __thread specifier for " \
2029         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2030 fi
2031
2032 if test "$pie" = ""; then
2033   case "$cpu-$targetos" in
2034     i386-Linux|x86_64-Linux|x32-Linux|i386-OpenBSD|x86_64-OpenBSD)
2035       ;;
2036     *)
2037       pie="no"
2038       ;;
2039   esac
2040 fi
2041
2042 if test "$pie" != "no" ; then
2043   cat > $TMPC << EOF
2044
2045 #ifdef __linux__
2046 #  define THREAD __thread
2047 #else
2048 #  define THREAD
2049 #endif
2050
2051 static THREAD int tls_var;
2052
2053 int main(void) { return tls_var; }
2054
2055 EOF
2056   if compile_prog "-fPIE -DPIE" "-pie"; then
2057     QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS"
2058     LDFLAGS="-pie $LDFLAGS"
2059     pie="yes"
2060     if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2061       LDFLAGS="-Wl,-z,relro -Wl,-z,now $LDFLAGS"
2062     fi
2063   else
2064     if test "$pie" = "yes"; then
2065       error_exit "PIE not available due to missing toolchain support"
2066     else
2067       echo "Disabling PIE due to missing toolchain support"
2068       pie="no"
2069     fi
2070   fi
2071
2072   if compile_prog "-Werror -fno-pie" "-nopie"; then
2073     CFLAGS_NOPIE="-fno-pie"
2074     LDFLAGS_NOPIE="-nopie"
2075   fi
2076 fi
2077
2078 ##########################################
2079 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2080 # use i686 as default anyway, but for those that don't, an explicit
2081 # specification is necessary
2082
2083 if test "$cpu" = "i386"; then
2084   cat > $TMPC << EOF
2085 static int sfaa(int *ptr)
2086 {
2087   return __sync_fetch_and_and(ptr, 0);
2088 }
2089
2090 int main(void)
2091 {
2092   int val = 42;
2093   val = __sync_val_compare_and_swap(&val, 0, 1);
2094   sfaa(&val);
2095   return val;
2096 }
2097 EOF
2098   if ! compile_prog "" "" ; then
2099     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2100   fi
2101 fi
2102
2103 #########################################
2104 # Solaris specific configure tool chain decisions
2105
2106 if test "$solaris" = "yes" ; then
2107   if has $install; then
2108     :
2109   else
2110     error_exit "Solaris install program not found. Use --install=/usr/ucb/install or" \
2111         "install fileutils from www.blastwave.org using pkg-get -i fileutils" \
2112         "to get ginstall which is used by default (which lives in /opt/csw/bin)"
2113   fi
2114   if test "$(path_of $install)" = "/usr/sbin/install" ; then
2115     error_exit "Solaris /usr/sbin/install is not an appropriate install program." \
2116         "try ginstall from the GNU fileutils available from www.blastwave.org" \
2117         "using pkg-get -i fileutils, or use --install=/usr/ucb/install"
2118   fi
2119   if has ar; then
2120     :
2121   else
2122     if test -f /usr/ccs/bin/ar ; then
2123       error_exit "No path includes ar" \
2124           "Add /usr/ccs/bin to your path and rerun configure"
2125     fi
2126     error_exit "No path includes ar"
2127   fi
2128 fi
2129
2130 if test -z "${target_list+xxx}" ; then
2131     for target in $default_target_list; do
2132         supported_target $target 2>/dev/null && \
2133             target_list="$target_list $target"
2134     done
2135     target_list="${target_list# }"
2136 else
2137     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2138     for target in $target_list; do
2139         # Check that we recognised the target name; this allows a more
2140         # friendly error message than if we let it fall through.
2141         case " $default_target_list " in
2142             *" $target "*)
2143                 ;;
2144             *)
2145                 error_exit "Unknown target name '$target'"
2146                 ;;
2147         esac
2148         supported_target $target || exit 1
2149     done
2150 fi
2151
2152 # see if system emulation was really requested
2153 case " $target_list " in
2154   *"-softmmu "*) softmmu=yes
2155   ;;
2156   *) softmmu=no
2157   ;;
2158 esac
2159
2160 feature_not_found() {
2161   feature=$1
2162   remedy=$2
2163
2164   error_exit "User requested feature $feature" \
2165       "configure was not able to find it." \
2166       "$remedy"
2167 }
2168
2169 # ---
2170 # big/little endian test
2171 cat > $TMPC << EOF
2172 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2173 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2174 extern int foo(short *, short *);
2175 int main(int argc, char *argv[]) {
2176     return foo(big_endian, little_endian);
2177 }
2178 EOF
2179
2180 if compile_object ; then
2181     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2182         bigendian="yes"
2183     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2184         bigendian="no"
2185     else
2186         echo big/little test failed
2187     fi
2188 else
2189     echo big/little test failed
2190 fi
2191
2192 ##########################################
2193 # cocoa implies not SDL or GTK
2194 # (the cocoa UI code currently assumes it is always the active UI
2195 # and doesn't interact well with other UI frontend code)
2196 if test "$cocoa" = "yes"; then
2197     if test "$sdl" = "yes"; then
2198         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2199     fi
2200     if test "$gtk" = "yes"; then
2201         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2202     fi
2203     gtk=no
2204     sdl=no
2205 fi
2206
2207 # Some versions of Mac OS X incorrectly define SIZE_MAX
2208 cat > $TMPC << EOF
2209 #include <stdint.h>
2210 #include <stdio.h>
2211 int main(int argc, char *argv[]) {
2212     return printf("%zu", SIZE_MAX);
2213 }
2214 EOF
2215 have_broken_size_max=no
2216 if ! compile_object -Werror ; then
2217     have_broken_size_max=yes
2218 fi
2219
2220 ##########################################
2221 # L2TPV3 probe
2222
2223 cat > $TMPC <<EOF
2224 #include <sys/socket.h>
2225 #include <linux/ip.h>
2226 int main(void) { return sizeof(struct mmsghdr); }
2227 EOF
2228 if compile_prog "" "" ; then
2229   l2tpv3=yes
2230 else
2231   l2tpv3=no
2232 fi
2233
2234 #########################################
2235 # vhost interdependencies and host support
2236
2237 # vhost backends
2238 test "$vhost_user" = "" && vhost_user=yes
2239 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2240   error_exit "vhost-user isn't available on win32"
2241 fi
2242 test "$vhost_kernel" = "" && vhost_kernel=$linux
2243 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2244   error_exit "vhost-kernel is only available on Linux"
2245 fi
2246
2247 # vhost-kernel devices
2248 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2249 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2250   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2251 fi
2252 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2253 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2254   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2255 fi
2256
2257 # vhost-user backends
2258 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2259 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2260   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2261 fi
2262 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2263 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2264   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2265 fi
2266
2267 # OR the vhost-kernel and vhost-user values for simplicity
2268 if test "$vhost_net" = ""; then
2269   test "$vhost_net_user" = "yes" && vhost_net=yes
2270   test "$vhost_kernel" = "yes" && vhost_net=yes
2271 fi
2272
2273 ##########################################
2274 # MinGW / Mingw-w64 localtime_r/gmtime_r check
2275
2276 if test "$mingw32" = "yes"; then
2277     # Some versions of MinGW / Mingw-w64 lack localtime_r
2278     # and gmtime_r entirely.
2279     #
2280     # Some versions of Mingw-w64 define a macro for
2281     # localtime_r/gmtime_r.
2282     #
2283     # Some versions of Mingw-w64 will define functions
2284     # for localtime_r/gmtime_r, but only if you have
2285     # _POSIX_THREAD_SAFE_FUNCTIONS defined. For fun
2286     # though, unistd.h and pthread.h both define
2287     # that for you.
2288     #
2289     # So this #undef localtime_r and #include <unistd.h>
2290     # are not in fact redundant.
2291 cat > $TMPC << EOF
2292 #include <unistd.h>
2293 #include <time.h>
2294 #undef localtime_r
2295 int main(void) { localtime_r(NULL, NULL); return 0; }
2296 EOF
2297     if compile_prog "" "" ; then
2298         localtime_r="yes"
2299     else
2300         localtime_r="no"
2301     fi
2302 fi
2303
2304 ##########################################
2305 # pkg-config probe
2306
2307 if ! has "$pkg_config_exe"; then
2308   error_exit "pkg-config binary '$pkg_config_exe' not found"
2309 fi
2310
2311 ##########################################
2312 # NPTL probe
2313
2314 if test "$linux_user" = "yes"; then
2315   cat > $TMPC <<EOF
2316 #include <sched.h>
2317 #include <linux/futex.h>
2318 int main(void) {
2319 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2320 #error bork
2321 #endif
2322   return 0;
2323 }
2324 EOF
2325   if ! compile_object ; then
2326     feature_not_found "nptl" "Install glibc and linux kernel headers."
2327   fi
2328 fi
2329
2330 ##########################################
2331 # lzo check
2332
2333 if test "$lzo" != "no" ; then
2334     cat > $TMPC << EOF
2335 #include <lzo/lzo1x.h>
2336 int main(void) { lzo_version(); return 0; }
2337 EOF
2338     if compile_prog "" "-llzo2" ; then
2339         libs_softmmu="$libs_softmmu -llzo2"
2340         lzo="yes"
2341     else
2342         if test "$lzo" = "yes"; then
2343             feature_not_found "liblzo2" "Install liblzo2 devel"
2344         fi
2345         lzo="no"
2346     fi
2347 fi
2348
2349 ##########################################
2350 # snappy check
2351
2352 if test "$snappy" != "no" ; then
2353     cat > $TMPC << EOF
2354 #include <snappy-c.h>
2355 int main(void) { snappy_max_compressed_length(4096); return 0; }
2356 EOF
2357     if compile_prog "" "-lsnappy" ; then
2358         libs_softmmu="$libs_softmmu -lsnappy"
2359         snappy="yes"
2360     else
2361         if test "$snappy" = "yes"; then
2362             feature_not_found "libsnappy" "Install libsnappy devel"
2363         fi
2364         snappy="no"
2365     fi
2366 fi
2367
2368 ##########################################
2369 # bzip2 check
2370
2371 if test "$bzip2" != "no" ; then
2372     cat > $TMPC << EOF
2373 #include <bzlib.h>
2374 int main(void) { BZ2_bzlibVersion(); return 0; }
2375 EOF
2376     if compile_prog "" "-lbz2" ; then
2377         bzip2="yes"
2378     else
2379         if test "$bzip2" = "yes"; then
2380             feature_not_found "libbzip2" "Install libbzip2 devel"
2381         fi
2382         bzip2="no"
2383     fi
2384 fi
2385
2386 ##########################################
2387 # lzfse check
2388
2389 if test "$lzfse" != "no" ; then
2390     cat > $TMPC << EOF
2391 #include <lzfse.h>
2392 int main(void) { lzfse_decode_scratch_size(); return 0; }
2393 EOF
2394     if compile_prog "" "-llzfse" ; then
2395         lzfse="yes"
2396     else
2397         if test "$lzfse" = "yes"; then
2398             feature_not_found "lzfse" "Install lzfse devel"
2399         fi
2400         lzfse="no"
2401     fi
2402 fi
2403
2404 ##########################################
2405 # libseccomp check
2406
2407 if test "$seccomp" != "no" ; then
2408     libseccomp_minver="2.3.0"
2409     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2410         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2411         seccomp_libs="$($pkg_config --libs libseccomp)"
2412         seccomp="yes"
2413     else
2414         if test "$seccomp" = "yes" ; then
2415             feature_not_found "libseccomp" \
2416                  "Install libseccomp devel >= $libseccomp_minver"
2417         fi
2418         seccomp="no"
2419     fi
2420 fi
2421 ##########################################
2422 # xen probe
2423
2424 if test "$xen" != "no" ; then
2425   # Check whether Xen library path is specified via --extra-ldflags to avoid
2426   # overriding this setting with pkg-config output. If not, try pkg-config
2427   # to obtain all needed flags.
2428
2429   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2430      $pkg_config --exists xencontrol ; then
2431     xen_ctrl_version="$(printf '%d%02d%02d' \
2432       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2433     xen=yes
2434     xen_pc="xencontrol xenstore xenguest xenforeignmemory xengnttab"
2435     xen_pc="$xen_pc xenevtchn xendevicemodel"
2436     if $pkg_config --exists xentoolcore; then
2437       xen_pc="$xen_pc xentoolcore"
2438     fi
2439     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags $xen_pc)"
2440     libs_softmmu="$($pkg_config --libs $xen_pc) $libs_softmmu"
2441   else
2442
2443     xen_libs="-lxenstore -lxenctrl -lxenguest"
2444     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2445
2446     # First we test whether Xen headers and libraries are available.
2447     # If no, we are done and there is no Xen support.
2448     # If yes, more tests are run to detect the Xen version.
2449
2450     # Xen (any)
2451     cat > $TMPC <<EOF
2452 #include <xenctrl.h>
2453 int main(void) {
2454   return 0;
2455 }
2456 EOF
2457     if ! compile_prog "" "$xen_libs" ; then
2458       # Xen not found
2459       if test "$xen" = "yes" ; then
2460         feature_not_found "xen" "Install xen devel"
2461       fi
2462       xen=no
2463
2464     # Xen unstable
2465     elif
2466         cat > $TMPC <<EOF &&
2467 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2468 #define __XEN_TOOLS__
2469 #include <xendevicemodel.h>
2470 #include <xenforeignmemory.h>
2471 int main(void) {
2472   xendevicemodel_handle *xd;
2473   xenforeignmemory_handle *xfmem;
2474
2475   xd = xendevicemodel_open(0, 0);
2476   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2477
2478   xfmem = xenforeignmemory_open(0, 0);
2479   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2480
2481   return 0;
2482 }
2483 EOF
2484         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2485       then
2486       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2487       xen_ctrl_version=41100
2488       xen=yes
2489     elif
2490         cat > $TMPC <<EOF &&
2491 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2492 #include <xenforeignmemory.h>
2493 #include <xentoolcore.h>
2494 int main(void) {
2495   xenforeignmemory_handle *xfmem;
2496
2497   xfmem = xenforeignmemory_open(0, 0);
2498   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2499   xentoolcore_restrict_all(0);
2500
2501   return 0;
2502 }
2503 EOF
2504         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2505       then
2506       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2507       xen_ctrl_version=41000
2508       xen=yes
2509     elif
2510         cat > $TMPC <<EOF &&
2511 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2512 #define __XEN_TOOLS__
2513 #include <xendevicemodel.h>
2514 int main(void) {
2515   xendevicemodel_handle *xd;
2516
2517   xd = xendevicemodel_open(0, 0);
2518   xendevicemodel_close(xd);
2519
2520   return 0;
2521 }
2522 EOF
2523         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2524       then
2525       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2526       xen_ctrl_version=40900
2527       xen=yes
2528     elif
2529         cat > $TMPC <<EOF &&
2530 /*
2531  * If we have stable libs the we don't want the libxc compat
2532  * layers, regardless of what CFLAGS we may have been given.
2533  *
2534  * Also, check if xengnttab_grant_copy_segment_t is defined and
2535  * grant copy operation is implemented.
2536  */
2537 #undef XC_WANT_COMPAT_EVTCHN_API
2538 #undef XC_WANT_COMPAT_GNTTAB_API
2539 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2540 #include <xenctrl.h>
2541 #include <xenstore.h>
2542 #include <xenevtchn.h>
2543 #include <xengnttab.h>
2544 #include <xenforeignmemory.h>
2545 #include <stdint.h>
2546 #include <xen/hvm/hvm_info_table.h>
2547 #if !defined(HVM_MAX_VCPUS)
2548 # error HVM_MAX_VCPUS not defined
2549 #endif
2550 int main(void) {
2551   xc_interface *xc = NULL;
2552   xenforeignmemory_handle *xfmem;
2553   xenevtchn_handle *xe;
2554   xengnttab_handle *xg;
2555   xengnttab_grant_copy_segment_t* seg = NULL;
2556
2557   xs_daemon_open();
2558
2559   xc = xc_interface_open(0, 0, 0);
2560   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2561   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2562   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2563   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2564
2565   xfmem = xenforeignmemory_open(0, 0);
2566   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2567
2568   xe = xenevtchn_open(0, 0);
2569   xenevtchn_fd(xe);
2570
2571   xg = xengnttab_open(0, 0);
2572   xengnttab_grant_copy(xg, 0, seg);
2573
2574   return 0;
2575 }
2576 EOF
2577         compile_prog "" "$xen_libs $xen_stable_libs"
2578       then
2579       xen_ctrl_version=40800
2580       xen=yes
2581     elif
2582         cat > $TMPC <<EOF &&
2583 /*
2584  * If we have stable libs the we don't want the libxc compat
2585  * layers, regardless of what CFLAGS we may have been given.
2586  */
2587 #undef XC_WANT_COMPAT_EVTCHN_API
2588 #undef XC_WANT_COMPAT_GNTTAB_API
2589 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2590 #include <xenctrl.h>
2591 #include <xenstore.h>
2592 #include <xenevtchn.h>
2593 #include <xengnttab.h>
2594 #include <xenforeignmemory.h>
2595 #include <stdint.h>
2596 #include <xen/hvm/hvm_info_table.h>
2597 #if !defined(HVM_MAX_VCPUS)
2598 # error HVM_MAX_VCPUS not defined
2599 #endif
2600 int main(void) {
2601   xc_interface *xc = NULL;
2602   xenforeignmemory_handle *xfmem;
2603   xenevtchn_handle *xe;
2604   xengnttab_handle *xg;
2605
2606   xs_daemon_open();
2607
2608   xc = xc_interface_open(0, 0, 0);
2609   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2610   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2611   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2612   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2613
2614   xfmem = xenforeignmemory_open(0, 0);
2615   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2616
2617   xe = xenevtchn_open(0, 0);
2618   xenevtchn_fd(xe);
2619
2620   xg = xengnttab_open(0, 0);
2621   xengnttab_map_grant_ref(xg, 0, 0, 0);
2622
2623   return 0;
2624 }
2625 EOF
2626         compile_prog "" "$xen_libs $xen_stable_libs"
2627       then
2628       xen_ctrl_version=40701
2629       xen=yes
2630
2631     # Xen 4.6
2632     elif
2633         cat > $TMPC <<EOF &&
2634 #include <xenctrl.h>
2635 #include <xenstore.h>
2636 #include <stdint.h>
2637 #include <xen/hvm/hvm_info_table.h>
2638 #if !defined(HVM_MAX_VCPUS)
2639 # error HVM_MAX_VCPUS not defined
2640 #endif
2641 int main(void) {
2642   xc_interface *xc;
2643   xs_daemon_open();
2644   xc = xc_interface_open(0, 0, 0);
2645   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2646   xc_gnttab_open(NULL, 0);
2647   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2648   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2649   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2650   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2651   return 0;
2652 }
2653 EOF
2654         compile_prog "" "$xen_libs"
2655       then
2656       xen_ctrl_version=40600
2657       xen=yes
2658
2659     # Xen 4.5
2660     elif
2661         cat > $TMPC <<EOF &&
2662 #include <xenctrl.h>
2663 #include <xenstore.h>
2664 #include <stdint.h>
2665 #include <xen/hvm/hvm_info_table.h>
2666 #if !defined(HVM_MAX_VCPUS)
2667 # error HVM_MAX_VCPUS not defined
2668 #endif
2669 int main(void) {
2670   xc_interface *xc;
2671   xs_daemon_open();
2672   xc = xc_interface_open(0, 0, 0);
2673   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2674   xc_gnttab_open(NULL, 0);
2675   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2676   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2677   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2678   return 0;
2679 }
2680 EOF
2681         compile_prog "" "$xen_libs"
2682       then
2683       xen_ctrl_version=40500
2684       xen=yes
2685
2686     elif
2687         cat > $TMPC <<EOF &&
2688 #include <xenctrl.h>
2689 #include <xenstore.h>
2690 #include <stdint.h>
2691 #include <xen/hvm/hvm_info_table.h>
2692 #if !defined(HVM_MAX_VCPUS)
2693 # error HVM_MAX_VCPUS not defined
2694 #endif
2695 int main(void) {
2696   xc_interface *xc;
2697   xs_daemon_open();
2698   xc = xc_interface_open(0, 0, 0);
2699   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2700   xc_gnttab_open(NULL, 0);
2701   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2702   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2703   return 0;
2704 }
2705 EOF
2706         compile_prog "" "$xen_libs"
2707       then
2708       xen_ctrl_version=40200
2709       xen=yes
2710
2711     else
2712       if test "$xen" = "yes" ; then
2713         feature_not_found "xen (unsupported version)" \
2714                           "Install a supported xen (xen 4.2 or newer)"
2715       fi
2716       xen=no
2717     fi
2718
2719     if test "$xen" = yes; then
2720       if test $xen_ctrl_version -ge 40701  ; then
2721         libs_softmmu="$xen_stable_libs $libs_softmmu"
2722       fi
2723       libs_softmmu="$xen_libs $libs_softmmu"
2724     fi
2725   fi
2726 fi
2727
2728 if test "$xen_pci_passthrough" != "no"; then
2729   if test "$xen" = "yes" && test "$linux" = "yes"; then
2730     xen_pci_passthrough=yes
2731   else
2732     if test "$xen_pci_passthrough" = "yes"; then
2733       error_exit "User requested feature Xen PCI Passthrough" \
2734           " but this feature requires /sys from Linux"
2735     fi
2736     xen_pci_passthrough=no
2737   fi
2738 fi
2739
2740 ##########################################
2741 # Windows Hypervisor Platform accelerator (WHPX) check
2742 if test "$whpx" != "no" ; then
2743     if check_include "WinHvPlatform.h" && check_include "WinHvEmulation.h"; then
2744         whpx="yes"
2745     else
2746         if test "$whpx" = "yes"; then
2747             feature_not_found "WinHvPlatform" "WinHvEmulation is not installed"
2748         fi
2749         whpx="no"
2750     fi
2751 fi
2752
2753 ##########################################
2754 # Sparse probe
2755 if test "$sparse" != "no" ; then
2756   if has cgcc; then
2757     sparse=yes
2758   else
2759     if test "$sparse" = "yes" ; then
2760       feature_not_found "sparse" "Install sparse binary"
2761     fi
2762     sparse=no
2763   fi
2764 fi
2765
2766 ##########################################
2767 # X11 probe
2768 if $pkg_config --exists "x11"; then
2769     have_x11=yes
2770     x11_cflags=$($pkg_config --cflags x11)
2771     x11_libs=$($pkg_config --libs x11)
2772 fi
2773
2774 ##########################################
2775 # GTK probe
2776
2777 if test "$gtk" != "no"; then
2778     gtkpackage="gtk+-3.0"
2779     gtkx11package="gtk+-x11-3.0"
2780     gtkversion="3.14.0"
2781     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2782         gtk_cflags=$($pkg_config --cflags $gtkpackage)
2783         gtk_libs=$($pkg_config --libs $gtkpackage)
2784         gtk_version=$($pkg_config --modversion $gtkpackage)
2785         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2786             need_x11=yes
2787             gtk_cflags="$gtk_cflags $x11_cflags"
2788             gtk_libs="$gtk_libs $x11_libs"
2789         fi
2790         gtk="yes"
2791     elif test "$gtk" = "yes"; then
2792         feature_not_found "gtk" "Install gtk3-devel"
2793     else
2794         gtk="no"
2795     fi
2796 fi
2797
2798
2799 ##########################################
2800 # GNUTLS probe
2801
2802 if test "$gnutls" != "no"; then
2803     pass="no"
2804     if $pkg_config --exists "gnutls >= 3.1.18"; then
2805         gnutls_cflags=$($pkg_config --cflags gnutls)
2806         gnutls_libs=$($pkg_config --libs gnutls)
2807         # Packaging for the static libraries is not always correct.
2808         # At least ubuntu 18.04 ships only shared libraries.
2809         write_c_skeleton
2810         if compile_prog "" "$gnutls_libs" ; then
2811             LIBS="$gnutls_libs $LIBS"
2812             QEMU_CFLAGS="$QEMU_CFLAGS $gnutls_cflags"
2813             pass="yes"
2814         fi
2815     fi
2816     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2817         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2818     else
2819         gnutls="$pass"
2820     fi
2821 fi
2822
2823
2824 # If user didn't give a --disable/enable-gcrypt flag,
2825 # then mark as disabled if user requested nettle
2826 # explicitly
2827 if test -z "$gcrypt"
2828 then
2829     if test "$nettle" = "yes"
2830     then
2831         gcrypt="no"
2832     fi
2833 fi
2834
2835 # If user didn't give a --disable/enable-nettle flag,
2836 # then mark as disabled if user requested gcrypt
2837 # explicitly
2838 if test -z "$nettle"
2839 then
2840     if test "$gcrypt" = "yes"
2841     then
2842         nettle="no"
2843     fi
2844 fi
2845
2846 has_libgcrypt() {
2847     if ! has "libgcrypt-config"
2848     then
2849         return 1
2850     fi
2851
2852     if test -n "$cross_prefix"
2853     then
2854         host=$(libgcrypt-config --host)
2855         if test "$host-" != $cross_prefix
2856         then
2857             return 1
2858         fi
2859     fi
2860
2861     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2862     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2863
2864     if test $maj != 1 || test $min -lt 5
2865     then
2866        return 1
2867     fi
2868
2869     return 0
2870 }
2871
2872
2873 if test "$nettle" != "no"; then
2874     pass="no"
2875     if $pkg_config --exists "nettle >= 2.7.1"; then
2876         nettle_cflags=$($pkg_config --cflags nettle)
2877         nettle_libs=$($pkg_config --libs nettle)
2878         nettle_version=$($pkg_config --modversion nettle)
2879         # Link test to make sure the given libraries work (e.g for static).
2880         write_c_skeleton
2881         if compile_prog "" "$nettle_libs" ; then
2882             LIBS="$nettle_libs $LIBS"
2883             QEMU_CFLAGS="$QEMU_CFLAGS $nettle_cflags"
2884             if test -z "$gcrypt"; then
2885                gcrypt="no"
2886             fi
2887             pass="yes"
2888         fi
2889     fi
2890     if test "$pass" = "no" && test "$nettle" = "yes"; then
2891         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2892     else
2893         nettle="$pass"
2894     fi
2895 fi
2896
2897 if test "$gcrypt" != "no"; then
2898     pass="no"
2899     if has_libgcrypt; then
2900         gcrypt_cflags=$(libgcrypt-config --cflags)
2901         gcrypt_libs=$(libgcrypt-config --libs)
2902         # Debian has removed -lgpg-error from libgcrypt-config
2903         # as it "spreads unnecessary dependencies" which in
2904         # turn breaks static builds...
2905         if test "$static" = "yes"
2906         then
2907             gcrypt_libs="$gcrypt_libs -lgpg-error"
2908         fi
2909
2910         # Link test to make sure the given libraries work (e.g for static).
2911         write_c_skeleton
2912         if compile_prog "" "$gcrypt_libs" ; then
2913             LIBS="$gcrypt_libs $LIBS"
2914             QEMU_CFLAGS="$QEMU_CFLAGS $gcrypt_cflags"
2915             pass="yes"
2916         fi
2917     fi
2918     if test "$pass" = "yes"; then
2919         gcrypt="yes"
2920         cat > $TMPC << EOF
2921 #include <gcrypt.h>
2922 int main(void) {
2923   gcry_mac_hd_t handle;
2924   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
2925                 GCRY_MAC_FLAG_SECURE, NULL);
2926   return 0;
2927 }
2928 EOF
2929         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
2930             gcrypt_hmac=yes
2931         fi
2932     elif test "$gcrypt" = "yes"; then
2933         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
2934     else
2935         gcrypt="no"
2936     fi
2937 fi
2938
2939
2940 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
2941 then
2942     error_exit "Only one of gcrypt & nettle can be enabled"
2943 fi
2944
2945 ##########################################
2946 # libtasn1 - only for the TLS creds/session test suite
2947
2948 tasn1=yes
2949 tasn1_cflags=""
2950 tasn1_libs=""
2951 if $pkg_config --exists "libtasn1"; then
2952     tasn1_cflags=$($pkg_config --cflags libtasn1)
2953     tasn1_libs=$($pkg_config --libs libtasn1)
2954 else
2955     tasn1=no
2956 fi
2957
2958
2959 ##########################################
2960 # PAM probe
2961
2962 if test "$auth_pam" != "no"; then
2963     cat > $TMPC <<EOF
2964 #include <security/pam_appl.h>
2965 #include <stdio.h>
2966 int main(void) {
2967    const char *service_name = "qemu";
2968    const char *user = "frank";
2969    const struct pam_conv pam_conv = { 0 };
2970    pam_handle_t *pamh = NULL;
2971    pam_start(service_name, user, &pam_conv, &pamh);
2972    return 0;
2973 }
2974 EOF
2975     if compile_prog "" "-lpam" ; then
2976         auth_pam=yes
2977     else
2978         if test "$auth_pam" = "yes"; then
2979             feature_not_found "PAM" "Install PAM development package"
2980         else
2981             auth_pam=no
2982         fi
2983     fi
2984 fi
2985
2986 ##########################################
2987 # getifaddrs (for tests/test-io-channel-socket )
2988
2989 have_ifaddrs_h=yes
2990 if ! check_include "ifaddrs.h" ; then
2991   have_ifaddrs_h=no
2992 fi
2993
2994 ##########################################
2995 # VTE probe
2996
2997 if test "$vte" != "no"; then
2998     vteminversion="0.32.0"
2999     if $pkg_config --exists "vte-2.91"; then
3000       vtepackage="vte-2.91"
3001     else
3002       vtepackage="vte-2.90"
3003     fi
3004     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3005         vte_cflags=$($pkg_config --cflags $vtepackage)
3006         vte_libs=$($pkg_config --libs $vtepackage)
3007         vteversion=$($pkg_config --modversion $vtepackage)
3008         vte="yes"
3009     elif test "$vte" = "yes"; then
3010         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3011     else
3012         vte="no"
3013     fi
3014 fi
3015
3016 ##########################################
3017 # SDL probe
3018
3019 # Look for sdl configuration program (pkg-config or sdl-config).  Try
3020 # sdl-config even without cross prefix, and favour pkg-config over sdl-config.
3021
3022 sdl_probe ()
3023 {
3024   if $pkg_config sdl2 --exists; then
3025     sdlconfig="$pkg_config sdl2"
3026     sdlversion=$($sdlconfig --modversion 2>/dev/null)
3027   elif has ${sdl_config}; then
3028     sdlconfig="$sdl2_config"
3029     sdlversion=$($sdlconfig --version)
3030   else
3031     if test "$sdl" = "yes" ; then
3032       feature_not_found "sdl" "Install SDL2-devel"
3033     fi
3034     sdl=no
3035     # no need to do the rest
3036     return
3037   fi
3038   if test -n "$cross_prefix" && test "$(basename "$sdlconfig")" = sdl-config; then
3039     echo warning: using "\"$sdlconfig\"" to detect cross-compiled sdl >&2
3040   fi
3041
3042   cat > $TMPC << EOF
3043 #include <SDL.h>
3044 #undef main /* We don't want SDL to override our main() */
3045 int main( void ) { return SDL_Init (SDL_INIT_VIDEO); }
3046 EOF
3047   sdl_cflags=$($sdlconfig --cflags 2>/dev/null)
3048   sdl_cflags="$sdl_cflags -Wno-undef"  # workaround 2.0.8 bug
3049   if test "$static" = "yes" ; then
3050     if $pkg_config sdl2 --exists; then
3051       sdl_libs=$($pkg_config sdl2 --static --libs 2>/dev/null)
3052     else
3053       sdl_libs=$($sdlconfig --static-libs 2>/dev/null)
3054     fi
3055   else
3056     sdl_libs=$($sdlconfig --libs 2>/dev/null)
3057   fi
3058   if compile_prog "$sdl_cflags" "$sdl_libs" ; then
3059     sdl=yes
3060
3061     # static link with sdl ? (note: sdl.pc's --static --libs is broken)
3062     if test "$sdl" = "yes" && test "$static" = "yes" ; then
3063       if test $? = 0 && echo $sdl_libs | grep -- -laa > /dev/null; then
3064          sdl_libs="$sdl_libs $(aalib-config --static-libs 2>/dev/null)"
3065          sdl_cflags="$sdl_cflags $(aalib-config --cflags 2>/dev/null)"
3066       fi
3067       if compile_prog "$sdl_cflags" "$sdl_libs" ; then
3068         :
3069       else
3070         sdl=no
3071       fi
3072     fi # static link
3073   else # sdl not found
3074     if test "$sdl" = "yes" ; then
3075       feature_not_found "sdl" "Install SDL2 devel"
3076     fi
3077     sdl=no
3078   fi # sdl compile test
3079 }
3080
3081 sdl_image_probe ()
3082 {
3083     if test "$sdl_image" != "no" ; then
3084         if $pkg_config SDL2_image --exists; then
3085             if test "$static" = "yes"; then
3086                 sdl_image_libs=$($pkg_config SDL2_image --libs --static 2>/dev/null)
3087             else
3088                 sdl_image_libs=$($pkg_config SDL2_image --libs 2>/dev/null)
3089             fi
3090             sdl_image_cflags=$($pkg_config SDL2_image --cflags 2>/dev/null)
3091             sdl_image=yes
3092
3093             sdl_cflags="$sdl_cflags $sdl_image_cflags"
3094             sdl_libs="$sdl_libs $sdl_image_libs"
3095         else
3096             if test "$sdl_image" = "yes" ; then
3097                 feature_not_found "sdl_image" "Install SDL Image devel"
3098             else
3099                 sdl_image=no
3100             fi
3101         fi
3102     fi
3103 }
3104
3105 if test "$sdl" != "no" ; then
3106   sdl_probe
3107 fi
3108
3109 if test "$sdl" = "yes" ; then
3110   sdl_image_probe
3111 else
3112   if test "$sdl_image" = "yes"; then
3113     echo "warning: SDL Image requested, but SDL is not available, disabling"
3114   fi
3115   sdl_image=no
3116 fi
3117
3118 if test "$sdl" = "yes" ; then
3119   cat > $TMPC <<EOF
3120 #include <SDL.h>
3121 #if defined(SDL_VIDEO_DRIVER_X11)
3122 #include <X11/XKBlib.h>
3123 #else
3124 #error No x11 support
3125 #endif
3126 int main(void) { return 0; }
3127 EOF
3128   if compile_prog "$sdl_cflags $x11_cflags" "$sdl_libs $x11_libs" ; then
3129     need_x11=yes
3130     sdl_cflags="$sdl_cflags $x11_cflags"
3131     sdl_libs="$sdl_libs $x11_libs"
3132   fi
3133 fi
3134
3135 ##########################################
3136 # RDMA needs OpenFabrics libraries
3137 if test "$rdma" != "no" ; then
3138   cat > $TMPC <<EOF
3139 #include <rdma/rdma_cma.h>
3140 int main(void) { return 0; }
3141 EOF
3142   rdma_libs="-lrdmacm -libverbs -libumad"
3143   if compile_prog "" "$rdma_libs" ; then
3144     rdma="yes"
3145     libs_softmmu="$libs_softmmu $rdma_libs"
3146   else
3147     if test "$rdma" = "yes" ; then
3148         error_exit \
3149             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3150             " Your options:" \
3151             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3152             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3153             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3154     fi
3155     rdma="no"
3156   fi
3157 fi
3158
3159 ##########################################
3160 # PVRDMA detection
3161
3162 cat > $TMPC <<EOF &&
3163 #include <sys/mman.h>
3164
3165 int
3166 main(void)
3167 {
3168     char buf = 0;
3169     void *addr = &buf;
3170     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3171
3172     return 0;
3173 }
3174 EOF
3175
3176 if test "$rdma" = "yes" ; then
3177     case "$pvrdma" in
3178     "")
3179         if compile_prog "" ""; then
3180             pvrdma="yes"
3181         else
3182             pvrdma="no"
3183         fi
3184         ;;
3185     "yes")
3186         if ! compile_prog "" ""; then
3187             error_exit "PVRDMA is not supported since mremap is not implemented"
3188         fi
3189         pvrdma="yes"
3190         ;;
3191     "no")
3192         pvrdma="no"
3193         ;;
3194     esac
3195 else
3196     if test "$pvrdma" = "yes" ; then
3197         error_exit "PVRDMA requires rdma suppport"
3198     fi
3199     pvrdma="no"
3200 fi
3201
3202 ##########################################
3203 # VNC SASL detection
3204 if test "$vnc" = "yes" && test "$vnc_sasl" != "no" ; then
3205   cat > $TMPC <<EOF
3206 #include <sasl/sasl.h>
3207 #include <stdio.h>
3208 int main(void) { sasl_server_init(NULL, "qemu"); return 0; }
3209 EOF
3210   # Assuming Cyrus-SASL installed in /usr prefix
3211   vnc_sasl_cflags=""
3212   vnc_sasl_libs="-lsasl2"
3213   if compile_prog "$vnc_sasl_cflags" "$vnc_sasl_libs" ; then
3214     vnc_sasl=yes
3215     libs_softmmu="$vnc_sasl_libs $libs_softmmu"
3216     QEMU_CFLAGS="$QEMU_CFLAGS $vnc_sasl_cflags"
3217   else
3218     if test "$vnc_sasl" = "yes" ; then
3219       feature_not_found "vnc-sasl" "Install Cyrus SASL devel"
3220     fi
3221     vnc_sasl=no
3222   fi
3223 fi
3224
3225 ##########################################
3226 # VNC JPEG detection
3227 if test "$vnc" = "yes" && test "$vnc_jpeg" != "no" ; then
3228 cat > $TMPC <<EOF
3229 #include <stdio.h>
3230 #include <jpeglib.h>
3231 int main(void) { struct jpeg_compress_struct s; jpeg_create_compress(&s); return 0; }
3232 EOF
3233     vnc_jpeg_cflags=""
3234     vnc_jpeg_libs="-ljpeg"
3235   if compile_prog "$vnc_jpeg_cflags" "$vnc_jpeg_libs" ; then
3236     vnc_jpeg=yes
3237     libs_softmmu="$vnc_jpeg_libs $libs_softmmu"
3238     QEMU_CFLAGS="$QEMU_CFLAGS $vnc_jpeg_cflags"
3239   else
3240     if test "$vnc_jpeg" = "yes" ; then
3241       feature_not_found "vnc-jpeg" "Install libjpeg-turbo devel"
3242     fi
3243     vnc_jpeg=no
3244   fi
3245 fi
3246
3247 ##########################################
3248 # VNC PNG detection
3249 if test "$vnc" = "yes" && test "$vnc_png" != "no" ; then
3250 cat > $TMPC <<EOF
3251 //#include <stdio.h>
3252 #include <png.h>
3253 #include <stddef.h>
3254 int main(void) {
3255     png_structp png_ptr;
3256     png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
3257     return png_ptr != 0;
3258 }
3259 EOF
3260   if $pkg_config libpng --exists; then
3261     vnc_png_cflags=$($pkg_config libpng --cflags)
3262     vnc_png_libs=$($pkg_config libpng --libs)
3263   else
3264     vnc_png_cflags=""
3265     vnc_png_libs="-lpng"
3266   fi
3267   if compile_prog "$vnc_png_cflags" "$vnc_png_libs" ; then
3268     vnc_png=yes
3269     libs_softmmu="$vnc_png_libs $libs_softmmu"
3270     QEMU_CFLAGS="$QEMU_CFLAGS $vnc_png_cflags"
3271   else
3272     if test "$vnc_png" = "yes" ; then
3273       feature_not_found "vnc-png" "Install libpng devel"
3274     fi
3275     vnc_png=no
3276   fi
3277 fi
3278
3279 ##########################################
3280 # xkbcommon probe
3281 if test "$xkbcommon" != "no" ; then
3282   if $pkg_config xkbcommon --exists; then
3283     xkbcommon_cflags=$($pkg_config xkbcommon --cflags)
3284     xkbcommon_libs=$($pkg_config xkbcommon --libs)
3285     xkbcommon=yes
3286   else
3287     if test "$xkbcommon" = "yes" ; then
3288       feature_not_found "xkbcommon" "Install libxkbcommon-devel"
3289     fi
3290     xkbcommon=no
3291   fi
3292 fi
3293
3294
3295 ##########################################
3296 # xfsctl() probe, used for file-posix.c
3297 if test "$xfs" != "no" ; then
3298   cat > $TMPC << EOF
3299 #include <stddef.h>  /* NULL */
3300 #include <xfs/xfs.h>
3301 int main(void)
3302 {
3303     xfsctl(NULL, 0, 0, NULL);
3304     return 0;
3305 }
3306 EOF
3307   if compile_prog "" "" ; then
3308     xfs="yes"
3309   else
3310     if test "$xfs" = "yes" ; then
3311       feature_not_found "xfs" "Instal xfsprogs/xfslibs devel"
3312     fi
3313     xfs=no
3314   fi
3315 fi
3316
3317 ##########################################
3318 # vde libraries probe
3319 if test "$vde" != "no" ; then
3320   vde_libs="-lvdeplug"
3321   cat > $TMPC << EOF
3322 #include <libvdeplug.h>
3323 int main(void)
3324 {
3325     struct vde_open_args a = {0, 0, 0};
3326     char s[] = "";
3327     vde_open(s, s, &a);
3328     return 0;
3329 }
3330 EOF
3331   if compile_prog "" "$vde_libs" ; then
3332     vde=yes
3333   else
3334     if test "$vde" = "yes" ; then
3335       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3336     fi
3337     vde=no
3338   fi
3339 fi
3340
3341 ##########################################
3342 # netmap support probe
3343 # Apart from looking for netmap headers, we make sure that the host API version
3344 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3345 # a minor/major version number. Minor new features will be marked with values up
3346 # to 15, and if something happens that requires a change to the backend we will
3347 # move above 15, submit the backend fixes and modify this two bounds.
3348 if test "$netmap" != "no" ; then
3349   cat > $TMPC << EOF
3350 #include <inttypes.h>
3351 #include <net/if.h>
3352 #include <net/netmap.h>
3353 #include <net/netmap_user.h>
3354 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3355 #error
3356 #endif
3357 int main(void) { return 0; }
3358 EOF
3359   if compile_prog "" "" ; then
3360     netmap=yes
3361   else
3362     if test "$netmap" = "yes" ; then
3363       feature_not_found "netmap"
3364     fi
3365     netmap=no
3366   fi
3367 fi
3368
3369 ##########################################
3370 # libcap-ng library probe
3371 if test "$cap_ng" != "no" ; then
3372   cap_libs="-lcap-ng"
3373   cat > $TMPC << EOF
3374 #include <cap-ng.h>
3375 int main(void)
3376 {
3377     capng_capability_to_name(CAPNG_EFFECTIVE);
3378     return 0;
3379 }
3380 EOF
3381   if compile_prog "" "$cap_libs" ; then
3382     cap_ng=yes
3383     libs_tools="$cap_libs $libs_tools"
3384   else
3385     if test "$cap_ng" = "yes" ; then
3386       feature_not_found "cap_ng" "Install libcap-ng devel"
3387     fi
3388     cap_ng=no
3389   fi
3390 fi
3391
3392 ##########################################
3393 # Sound support libraries probe
3394
3395 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3396 for drv in $audio_drv_list; do
3397     case $drv in
3398     alsa | try-alsa)
3399     if $pkg_config alsa --exists; then
3400         alsa_libs=$($pkg_config alsa --libs)
3401         if test "$drv" = "try-alsa"; then
3402             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3403         fi
3404     else
3405         if test "$drv" = "try-alsa"; then
3406             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3407         else
3408             error_exit "$drv check failed" \
3409                 "Make sure to have the $drv libs and headers installed."
3410         fi
3411     fi
3412     ;;
3413
3414     pa | try-pa)
3415     if $pkg_config libpulse --exists; then
3416         pulse_libs=$($pkg_config libpulse --libs)
3417         audio_pt_int="yes"
3418         if test "$drv" = "try-pa"; then
3419             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3420         fi
3421     else
3422         if test "$drv" = "try-pa"; then
3423             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3424         else
3425             error_exit "$drv check failed" \
3426                 "Make sure to have the $drv libs and headers installed."
3427         fi
3428     fi
3429     ;;
3430
3431     sdl)
3432     if test "$sdl" = "no"; then
3433         error_exit "sdl not found or disabled, can not use sdl audio driver"
3434     fi
3435     ;;
3436
3437     try-sdl)
3438     if test "$sdl" = "no"; then
3439         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3440     else
3441         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3442     fi
3443     ;;
3444
3445     coreaudio)
3446       coreaudio_libs="-framework CoreAudio"
3447     ;;
3448
3449     dsound)
3450       dsound_libs="-lole32 -ldxguid"
3451       audio_win_int="yes"
3452     ;;
3453
3454     oss)
3455       oss_libs="$oss_lib"
3456     ;;
3457
3458     *)
3459     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3460         error_exit "Unknown driver '$drv' selected" \
3461             "Possible drivers are: $audio_possible_drivers"
3462     }
3463     ;;
3464     esac
3465 done
3466
3467 ##########################################
3468 # BrlAPI probe
3469
3470 if test "$brlapi" != "no" ; then
3471   brlapi_libs="-lbrlapi"
3472   cat > $TMPC << EOF
3473 #include <brlapi.h>
3474 #include <stddef.h>
3475 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3476 EOF
3477   if compile_prog "" "$brlapi_libs" ; then
3478     brlapi=yes
3479   else
3480     if test "$brlapi" = "yes" ; then
3481       feature_not_found "brlapi" "Install brlapi devel"
3482     fi
3483     brlapi=no
3484   fi
3485 fi
3486
3487 ##########################################
3488 # iconv probe
3489 if test "$iconv" != "no" ; then
3490   cat > $TMPC << EOF
3491 #include <iconv.h>
3492 int main(void) {
3493   iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
3494   return conv != (iconv_t) -1;
3495 }
3496 EOF
3497   iconv_prefix_list="/usr/local:/usr"
3498   iconv_lib_list=":-liconv"
3499   IFS=:
3500   for iconv_prefix in $iconv_prefix_list; do
3501     IFS=:
3502     iconv_cflags="-I$iconv_prefix/include"
3503     iconv_ldflags="-L$iconv_prefix/lib"
3504     for iconv_link in $iconv_lib_list; do
3505       unset IFS
3506       iconv_lib="$iconv_ldflags $iconv_link"
3507       echo "looking at iconv in '$iconv_cflags' '$iconv_lib'" >> config.log
3508       if compile_prog "$iconv_cflags" "$iconv_lib" ; then
3509         iconv_found=yes
3510         break
3511       fi
3512     done
3513     if test "$iconv_found" = yes ; then
3514       break
3515     fi
3516   done
3517   if test "$iconv_found" = "yes" ; then
3518     iconv=yes
3519   else
3520     if test "$iconv" = "yes" ; then
3521       feature_not_found "iconv" "Install iconv devel"
3522     fi
3523     iconv=no
3524   fi
3525 fi
3526
3527 ##########################################
3528 # curses probe
3529 if test "$iconv" = "no" ; then
3530   # curses will need iconv
3531   curses=no
3532 fi
3533 if test "$curses" != "no" ; then
3534   if test "$mingw32" = "yes" ; then
3535     curses_inc_list="$($pkg_config --cflags ncurses 2>/dev/null):"
3536     curses_lib_list="$($pkg_config --libs ncurses 2>/dev/null):-lpdcurses"
3537   else
3538     curses_inc_list="$($pkg_config --cflags ncursesw 2>/dev/null):-I/usr/include/ncursesw:"
3539     curses_lib_list="$($pkg_config --libs ncursesw 2>/dev/null):-lncursesw:-lcursesw"
3540   fi
3541   curses_found=no
3542   cat > $TMPC << EOF
3543 #include <locale.h>
3544 #include <curses.h>
3545 #include <wchar.h>
3546 #include <langinfo.h>
3547 int main(void) {
3548   const char *codeset;
3549   wchar_t wch = L'w';
3550   setlocale(LC_ALL, "");
3551   resize_term(0, 0);
3552   addwstr(L"wide chars\n");
3553   addnwstr(&wch, 1);
3554   add_wch(WACS_DEGREE);
3555   codeset = nl_langinfo(CODESET);
3556   return codeset != 0;
3557 }
3558 EOF
3559   IFS=:
3560   for curses_inc in $curses_inc_list; do
3561     # Make sure we get the wide character prototypes
3562     curses_inc="-DNCURSES_WIDECHAR $curses_inc"
3563     IFS=:
3564     for curses_lib in $curses_lib_list; do
3565       unset IFS
3566       if compile_prog "$curses_inc" "$curses_lib" ; then
3567         curses_found=yes
3568         break
3569       fi
3570     done
3571     if test "$curses_found" = yes ; then
3572       break
3573     fi
3574   done
3575   unset IFS
3576   if test "$curses_found" = "yes" ; then
3577     curses=yes
3578   else
3579     if test "$curses" = "yes" ; then
3580       feature_not_found "curses" "Install ncurses devel"
3581     fi
3582     curses=no
3583   fi
3584 fi
3585
3586 ##########################################
3587 # curl probe
3588 if test "$curl" != "no" ; then
3589   if $pkg_config libcurl --exists; then
3590     curlconfig="$pkg_config libcurl"
3591   else
3592     curlconfig=curl-config
3593   fi
3594   cat > $TMPC << EOF
3595 #include <curl/curl.h>
3596 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3597 EOF
3598   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3599   curl_libs=$($curlconfig --libs 2>/dev/null)
3600   if compile_prog "$curl_cflags" "$curl_libs" ; then
3601     curl=yes
3602   else
3603     if test "$curl" = "yes" ; then
3604       feature_not_found "curl" "Install libcurl devel"
3605     fi
3606     curl=no
3607   fi
3608 fi # test "$curl"
3609
3610 ##########################################
3611 # bluez support probe
3612 if test "$bluez" != "no" ; then
3613   cat > $TMPC << EOF
3614 #include <bluetooth/bluetooth.h>
3615 int main(void) { return bt_error(0); }
3616 EOF
3617   bluez_cflags=$($pkg_config --cflags bluez 2>/dev/null)
3618   bluez_libs=$($pkg_config --libs bluez 2>/dev/null)
3619   if compile_prog "$bluez_cflags" "$bluez_libs" ; then
3620     bluez=yes
3621     libs_softmmu="$bluez_libs $libs_softmmu"
3622   else
3623     if test "$bluez" = "yes" ; then
3624       feature_not_found "bluez" "Install bluez-libs/libbluetooth devel"
3625     fi
3626     bluez="no"
3627   fi
3628 fi
3629
3630 ##########################################
3631 # glib support probe
3632
3633 glib_req_ver=2.40
3634 glib_modules=gthread-2.0
3635 if test "$modules" = yes; then
3636     glib_modules="$glib_modules gmodule-export-2.0"
3637 fi
3638
3639 # This workaround is required due to a bug in pkg-config file for glib as it
3640 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3641
3642 if test "$static" = yes && test "$mingw32" = yes; then
3643     QEMU_CFLAGS="-DGLIB_STATIC_COMPILATION $QEMU_CFLAGS"
3644 fi
3645
3646 for i in $glib_modules; do
3647     if $pkg_config --atleast-version=$glib_req_ver $i; then
3648         glib_cflags=$($pkg_config --cflags $i)
3649         glib_libs=$($pkg_config --libs $i)
3650         QEMU_CFLAGS="$glib_cflags $QEMU_CFLAGS"
3651         LIBS="$glib_libs $LIBS"
3652         libs_qga="$glib_libs $libs_qga"
3653     else
3654         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3655     fi
3656 done
3657
3658 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3659     gio=yes
3660     gio_cflags=$($pkg_config --cflags gio-2.0)
3661     gio_libs=$($pkg_config --libs gio-2.0)
3662 else
3663     gio=no
3664 fi
3665
3666 # Sanity check that the current size_t matches the
3667 # size that glib thinks it should be. This catches
3668 # problems on multi-arch where people try to build
3669 # 32-bit QEMU while pointing at 64-bit glib headers
3670 cat > $TMPC <<EOF
3671 #include <glib.h>
3672 #include <unistd.h>
3673
3674 #define QEMU_BUILD_BUG_ON(x) \
3675   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3676
3677 int main(void) {
3678    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3679    return 0;
3680 }
3681 EOF
3682
3683 if ! compile_prog "$CFLAGS" "$LIBS" ; then
3684     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3685                "You probably need to set PKG_CONFIG_LIBDIR"\
3686                "to point to the right pkg-config files for your"\
3687                "build target"
3688 fi
3689
3690 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3691 cat > $TMPC << EOF
3692 #include <glib.h>
3693 int main(void) { return 0; }
3694 EOF
3695 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3696     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3697         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3698         CFLAGS="-Wno-unknown-attributes $CFLAGS"
3699     fi
3700 fi
3701
3702 #########################################
3703 # zlib check
3704
3705 if test "$zlib" != "no" ; then
3706     if $pkg_config --exists zlib; then
3707         zlib_cflags=$($pkg_config --cflags zlib)
3708         zlib_libs=$($pkg_config --libs zlib)
3709         QEMU_CFLAGS="$zlib_cflags $QEMU_CFLAGS"
3710         LIBS="$zlib_libs $LIBS"
3711     else
3712         cat > $TMPC << EOF
3713 #include <zlib.h>
3714 int main(void) { zlibVersion(); return 0; }
3715 EOF
3716         if compile_prog "" "-lz" ; then
3717             LIBS="$LIBS -lz"
3718         else
3719             error_exit "zlib check failed" \
3720                 "Make sure to have the zlib libs and headers installed."
3721         fi
3722     fi
3723 fi
3724
3725 ##########################################
3726 # SHA command probe for modules
3727 if test "$modules" = yes; then
3728     shacmd_probe="sha1sum sha1 shasum"
3729     for c in $shacmd_probe; do
3730         if has $c; then
3731             shacmd="$c"
3732             break
3733         fi
3734     done
3735     if test "$shacmd" = ""; then
3736         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3737     fi
3738 fi
3739
3740 ##########################################
3741 # pixman support probe
3742
3743 if test "$want_tools" = "no" && test "$softmmu" = "no"; then
3744   pixman_cflags=
3745   pixman_libs=
3746 elif $pkg_config --atleast-version=0.21.8 pixman-1 > /dev/null 2>&1; then
3747   pixman_cflags=$($pkg_config --cflags pixman-1)
3748   pixman_libs=$($pkg_config --libs pixman-1)
3749 else
3750   error_exit "pixman >= 0.21.8 not present." \
3751       "Please install the pixman devel package."
3752 fi
3753
3754 ##########################################
3755 # libmpathpersist probe
3756
3757 if test "$mpath" != "no" ; then
3758   # probe for the new API
3759   cat > $TMPC <<EOF
3760 #include <libudev.h>
3761 #include <mpath_persist.h>
3762 unsigned mpath_mx_alloc_len = 1024;
3763 int logsink;
3764 static struct config *multipath_conf;
3765 extern struct udev *udev;
3766 extern struct config *get_multipath_config(void);
3767 extern void put_multipath_config(struct config *conf);
3768 struct udev *udev;
3769 struct config *get_multipath_config(void) { return multipath_conf; }
3770 void put_multipath_config(struct config *conf) { }
3771
3772 int main(void) {
3773     udev = udev_new();
3774     multipath_conf = mpath_lib_init();
3775     return 0;
3776 }
3777 EOF
3778   if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3779     mpathpersist=yes
3780     mpathpersist_new_api=yes
3781   else
3782     # probe for the old API
3783     cat > $TMPC <<EOF
3784 #include <libudev.h>
3785 #include <mpath_persist.h>
3786 unsigned mpath_mx_alloc_len = 1024;
3787 int logsink;
3788 int main(void) {
3789     struct udev *udev = udev_new();
3790     mpath_lib_init(udev);
3791     return 0;
3792 }
3793 EOF
3794     if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3795       mpathpersist=yes
3796       mpathpersist_new_api=no
3797     else
3798       mpathpersist=no
3799     fi
3800   fi
3801 else
3802   mpathpersist=no
3803 fi
3804
3805 ##########################################
3806 # libcap probe
3807
3808 if test "$cap" != "no" ; then
3809   cat > $TMPC <<EOF
3810 #include <stdio.h>
3811 #include <sys/capability.h>
3812 int main(void) { cap_t caps; caps = cap_init(); return caps != NULL; }
3813 EOF
3814   if compile_prog "" "-lcap" ; then
3815     cap=yes
3816   else
3817     cap=no
3818   fi
3819 fi
3820
3821 ##########################################
3822 # pthread probe
3823 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3824
3825 pthread=no
3826 cat > $TMPC << EOF
3827 #include <pthread.h>
3828 static void *f(void *p) { return NULL; }
3829 int main(void) {
3830   pthread_t thread;
3831   pthread_create(&thread, 0, f, 0);
3832   return 0;
3833 }
3834 EOF
3835 if compile_prog "" "" ; then
3836   pthread=yes
3837 else
3838   for pthread_lib in $PTHREADLIBS_LIST; do
3839     if compile_prog "" "$pthread_lib" ; then
3840       pthread=yes
3841       found=no
3842       for lib_entry in $LIBS; do
3843         if test "$lib_entry" = "$pthread_lib"; then
3844           found=yes
3845           break
3846         fi
3847       done
3848       if test "$found" = "no"; then
3849         LIBS="$pthread_lib $LIBS"
3850         libs_qga="$pthread_lib $libs_qga"
3851       fi
3852       PTHREAD_LIB="$pthread_lib"
3853       break
3854     fi
3855   done
3856 fi
3857
3858 if test "$mingw32" != yes && test "$pthread" = no; then
3859   error_exit "pthread check failed" \
3860       "Make sure to have the pthread libs and headers installed."
3861 fi
3862
3863 # check for pthread_setname_np with thread id
3864 pthread_setname_np_w_tid=no
3865 cat > $TMPC << EOF
3866 #include <pthread.h>
3867
3868 static void *f(void *p) { return NULL; }
3869 int main(void)
3870 {
3871     pthread_t thread;
3872     pthread_create(&thread, 0, f, 0);
3873     pthread_setname_np(thread, "QEMU");
3874     return 0;
3875 }
3876 EOF
3877 if compile_prog "" "$pthread_lib" ; then
3878   pthread_setname_np_w_tid=yes
3879 fi
3880
3881 # check for pthread_setname_np without thread id
3882 pthread_setname_np_wo_tid=no
3883 cat > $TMPC << EOF
3884 #include <pthread.h>
3885
3886 static void *f(void *p) { pthread_setname_np("QEMU"); }
3887 int main(void)
3888 {
3889     pthread_t thread;
3890     pthread_create(&thread, 0, f, 0);
3891     return 0;
3892 }
3893 EOF
3894 if compile_prog "" "$pthread_lib" ; then
3895   pthread_setname_np_wo_tid=yes
3896 fi
3897
3898 ##########################################
3899 # rbd probe
3900 if test "$rbd" != "no" ; then
3901   cat > $TMPC <<EOF
3902 #include <stdio.h>
3903 #include <rbd/librbd.h>
3904 int main(void) {
3905     rados_t cluster;
3906     rados_create(&cluster, NULL);
3907     return 0;
3908 }
3909 EOF
3910   rbd_libs="-lrbd -lrados"
3911   if compile_prog "" "$rbd_libs" ; then
3912     rbd=yes
3913   else
3914     if test "$rbd" = "yes" ; then
3915       feature_not_found "rados block device" "Install librbd/ceph devel"
3916     fi
3917     rbd=no
3918   fi
3919 fi
3920
3921 ##########################################
3922 # libssh2 probe
3923 min_libssh2_version=1.2.8
3924 if test "$libssh2" != "no" ; then
3925   if $pkg_config --atleast-version=$min_libssh2_version libssh2; then
3926     libssh2_cflags=$($pkg_config libssh2 --cflags)
3927     libssh2_libs=$($pkg_config libssh2 --libs)
3928     libssh2=yes
3929   else
3930     if test "$libssh2" = "yes" ; then
3931       error_exit "libssh2 >= $min_libssh2_version required for --enable-libssh2"
3932     fi
3933     libssh2=no
3934   fi
3935 fi
3936
3937 ##########################################
3938 # libssh2_sftp_fsync probe
3939
3940 if test "$libssh2" = "yes"; then
3941   cat > $TMPC <<EOF
3942 #include <stdio.h>
3943 #include <libssh2.h>
3944 #include <libssh2_sftp.h>
3945 int main(void) {
3946     LIBSSH2_SESSION *session;
3947     LIBSSH2_SFTP *sftp;
3948     LIBSSH2_SFTP_HANDLE *sftp_handle;
3949     session = libssh2_session_init ();
3950     sftp = libssh2_sftp_init (session);
3951     sftp_handle = libssh2_sftp_open (sftp, "/", 0, 0);
3952     libssh2_sftp_fsync (sftp_handle);
3953     return 0;
3954 }
3955 EOF
3956   # libssh2_cflags/libssh2_libs defined in previous test.
3957   if compile_prog "$libssh2_cflags" "$libssh2_libs" ; then
3958     QEMU_CFLAGS="-DHAS_LIBSSH2_SFTP_FSYNC $QEMU_CFLAGS"
3959   fi
3960 fi
3961
3962 ##########################################
3963 # linux-aio probe
3964
3965 if test "$linux_aio" != "no" ; then
3966   cat > $TMPC <<EOF
3967 #include <libaio.h>
3968 #include <sys/eventfd.h>
3969 #include <stddef.h>
3970 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3971 EOF
3972   if compile_prog "" "-laio" ; then
3973     linux_aio=yes
3974   else
3975     if test "$linux_aio" = "yes" ; then
3976       feature_not_found "linux AIO" "Install libaio devel"
3977     fi
3978     linux_aio=no
3979   fi
3980 fi
3981
3982 ##########################################
3983 # TPM emulation is only on POSIX
3984
3985 if test "$tpm" = ""; then
3986   if test "$mingw32" = "yes"; then
3987     tpm=no
3988   else
3989     tpm=yes
3990   fi
3991 elif test "$tpm" = "yes"; then
3992   if test "$mingw32" = "yes" ; then
3993     error_exit "TPM emulation only available on POSIX systems"
3994   fi
3995 fi
3996
3997 ##########################################
3998 # attr probe
3999
4000 if test "$attr" != "no" ; then
4001   cat > $TMPC <<EOF
4002 #include <stdio.h>
4003 #include <sys/types.h>
4004 #ifdef CONFIG_LIBATTR
4005 #include <attr/xattr.h>
4006 #else
4007 #include <sys/xattr.h>
4008 #endif
4009 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
4010 EOF
4011   if compile_prog "" "" ; then
4012     attr=yes
4013   # Older distros have <attr/xattr.h>, and need -lattr:
4014   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
4015     attr=yes
4016     LIBS="-lattr $LIBS"
4017     libattr=yes
4018   else
4019     if test "$attr" = "yes" ; then
4020       feature_not_found "ATTR" "Install libc6 or libattr devel"
4021     fi
4022     attr=no
4023   fi
4024 fi
4025
4026 ##########################################
4027 # iovec probe
4028 cat > $TMPC <<EOF
4029 #include <sys/types.h>
4030 #include <sys/uio.h>
4031 #include <unistd.h>
4032 int main(void) { return sizeof(struct iovec); }
4033 EOF
4034 iovec=no
4035 if compile_prog "" "" ; then
4036   iovec=yes
4037 fi
4038
4039 ##########################################
4040 # preadv probe
4041 cat > $TMPC <<EOF
4042 #include <sys/types.h>
4043 #include <sys/uio.h>
4044 #include <unistd.h>
4045 int main(void) { return preadv(0, 0, 0, 0); }
4046 EOF
4047 preadv=no
4048 if compile_prog "" "" ; then
4049   preadv=yes
4050 fi
4051
4052 ##########################################
4053 # fdt probe
4054 # fdt support is mandatory for at least some target architectures,
4055 # so insist on it if we're building those system emulators.
4056 fdt_required=no
4057 for target in $target_list; do
4058   case $target in
4059     aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu|riscv*-softmmu)
4060       fdt_required=yes
4061     ;;
4062   esac
4063 done
4064
4065 if test "$fdt_required" = "yes"; then
4066   if test "$fdt" = "no"; then
4067     error_exit "fdt disabled but some requested targets require it." \
4068       "You can turn off fdt only if you also disable all the system emulation" \
4069       "targets which need it (by specifying a cut down --target-list)."
4070   fi
4071   fdt=yes
4072 fi
4073
4074 if test "$fdt" != "no" ; then
4075   fdt_libs="-lfdt"
4076   # explicitly check for libfdt_env.h as it is missing in some stable installs
4077   # and test for required functions to make sure we are on a version >= 1.4.2
4078   cat > $TMPC << EOF
4079 #include <libfdt.h>
4080 #include <libfdt_env.h>
4081 int main(void) { fdt_check_full(NULL, 0); return 0; }
4082 EOF
4083   if compile_prog "" "$fdt_libs" ; then
4084     # system DTC is good - use it
4085     fdt=system
4086   else
4087       # have GIT checkout, so activate dtc submodule
4088       if test -e "${source_path}/.git" ; then
4089           git_submodules="${git_submodules} dtc"
4090       fi
4091       if test -d "${source_path}/dtc/libfdt" || test -e "${source_path}/.git" ; then
4092           fdt=git
4093           mkdir -p dtc
4094           if [ "$pwd_is_source_path" != "y" ] ; then
4095               symlink "$source_path/dtc/Makefile" "dtc/Makefile"
4096               symlink "$source_path/dtc/scripts" "dtc/scripts"
4097           fi
4098           fdt_cflags="-I\$(SRC_PATH)/dtc/libfdt"
4099           fdt_ldflags="-L\$(BUILD_DIR)/dtc/libfdt"
4100           fdt_libs="$fdt_libs"
4101       elif test "$fdt" = "yes" ; then
4102           # Not a git build & no libfdt found, prompt for system install
4103           error_exit "DTC (libfdt) version >= 1.4.2 not present." \
4104                      "Please install the DTC (libfdt) devel package"
4105       else
4106           # don't have and don't want
4107           fdt_libs=
4108           fdt=no
4109       fi
4110   fi
4111 fi
4112
4113 libs_softmmu="$libs_softmmu $fdt_libs"
4114
4115 ##########################################
4116 # opengl probe (for sdl2, gtk, milkymist-tmu2)
4117
4118 gbm="no"
4119 if $pkg_config gbm; then
4120     gbm_cflags="$($pkg_config --cflags gbm)"
4121     gbm_libs="$($pkg_config --libs gbm)"
4122     gbm="yes"
4123 fi
4124
4125 if test "$opengl" != "no" ; then
4126   opengl_pkgs="epoxy gbm"
4127   if $pkg_config $opengl_pkgs; then
4128     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
4129     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
4130     opengl=yes
4131     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
4132         gtk_gl="yes"
4133     fi
4134     QEMU_CFLAGS="$QEMU_CFLAGS $opengl_cflags"
4135   else
4136     if test "$opengl" = "yes" ; then
4137       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
4138     fi
4139     opengl_cflags=""
4140     opengl_libs=""
4141     opengl=no
4142   fi
4143 fi
4144
4145 if test "$opengl" = "yes"; then
4146   cat > $TMPC << EOF
4147 #include <epoxy/egl.h>
4148 #ifndef EGL_MESA_image_dma_buf_export
4149 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
4150 #endif
4151 int main(void) { return 0; }
4152 EOF
4153   if compile_prog "" "" ; then
4154     opengl_dmabuf=yes
4155   fi
4156 fi
4157
4158 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
4159   for target in $target_list; do
4160     case $target in
4161       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
4162         need_x11=yes
4163       ;;
4164     esac
4165   done
4166 fi
4167
4168 ##########################################
4169 # libxml2 probe
4170 if test "$libxml2" != "no" ; then
4171     if $pkg_config --exists libxml-2.0; then
4172         libxml2="yes"
4173         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
4174         libxml2_libs=$($pkg_config --libs libxml-2.0)
4175     else
4176         if test "$libxml2" = "yes"; then
4177             feature_not_found "libxml2" "Install libxml2 devel"
4178         fi
4179         libxml2="no"
4180     fi
4181 fi
4182
4183 ##########################################
4184 # glusterfs probe
4185 if test "$glusterfs" != "no" ; then
4186   if $pkg_config --atleast-version=3 glusterfs-api; then
4187     glusterfs="yes"
4188     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
4189     glusterfs_libs=$($pkg_config --libs glusterfs-api)
4190     if $pkg_config --atleast-version=4 glusterfs-api; then
4191       glusterfs_xlator_opt="yes"
4192     fi
4193     if $pkg_config --atleast-version=5 glusterfs-api; then
4194       glusterfs_discard="yes"
4195     fi
4196     if $pkg_config --atleast-version=6 glusterfs-api; then
4197       glusterfs_fallocate="yes"
4198       glusterfs_zerofill="yes"
4199     fi
4200     cat > $TMPC << EOF
4201 #include <glusterfs/api/glfs.h>
4202
4203 int
4204 main(void)
4205 {
4206         /* new glfs_ftruncate() passes two additional args */
4207         return glfs_ftruncate(NULL, 0, NULL, NULL);
4208 }
4209 EOF
4210     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4211       glusterfs_ftruncate_has_stat="yes"
4212     fi
4213     cat > $TMPC << EOF
4214 #include <glusterfs/api/glfs.h>
4215
4216 /* new glfs_io_cbk() passes two additional glfs_stat structs */
4217 static void
4218 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
4219 {}
4220
4221 int
4222 main(void)
4223 {
4224         glfs_io_cbk iocb = &glusterfs_iocb;
4225         iocb(NULL, 0 , NULL, NULL, NULL);
4226         return 0;
4227 }
4228 EOF
4229     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4230       glusterfs_iocb_has_stat="yes"
4231     fi
4232   else
4233     if test "$glusterfs" = "yes" ; then
4234       feature_not_found "GlusterFS backend support" \
4235           "Install glusterfs-api devel >= 3"
4236     fi
4237     glusterfs="no"
4238   fi
4239 fi
4240
4241 # Check for inotify functions when we are building linux-user
4242 # emulator.  This is done because older glibc versions don't
4243 # have syscall stubs for these implemented.  In that case we
4244 # don't provide them even if kernel supports them.
4245 #
4246 inotify=no
4247 cat > $TMPC << EOF
4248 #include <sys/inotify.h>
4249
4250 int
4251 main(void)
4252 {
4253         /* try to start inotify */
4254         return inotify_init();
4255 }
4256 EOF
4257 if compile_prog "" "" ; then
4258   inotify=yes
4259 fi
4260
4261 inotify1=no
4262 cat > $TMPC << EOF
4263 #include <sys/inotify.h>
4264
4265 int
4266 main(void)
4267 {
4268     /* try to start inotify */
4269     return inotify_init1(0);
4270 }
4271 EOF
4272 if compile_prog "" "" ; then
4273   inotify1=yes
4274 fi
4275
4276 # check if pipe2 is there
4277 pipe2=no
4278 cat > $TMPC << EOF
4279 #include <unistd.h>
4280 #include <fcntl.h>
4281
4282 int main(void)
4283 {
4284     int pipefd[2];
4285     return pipe2(pipefd, O_CLOEXEC);
4286 }
4287 EOF
4288 if compile_prog "" "" ; then
4289   pipe2=yes
4290 fi
4291
4292 # check if accept4 is there
4293 accept4=no
4294 cat > $TMPC << EOF
4295 #include <sys/socket.h>
4296 #include <stddef.h>
4297
4298 int main(void)
4299 {
4300     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4301     return 0;
4302 }
4303 EOF
4304 if compile_prog "" "" ; then
4305   accept4=yes
4306 fi
4307
4308 # check if tee/splice is there. vmsplice was added same time.
4309 splice=no
4310 cat > $TMPC << EOF
4311 #include <unistd.h>
4312 #include <fcntl.h>
4313 #include <limits.h>
4314
4315 int main(void)
4316 {
4317     int len, fd = 0;
4318     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4319     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4320     return 0;
4321 }
4322 EOF
4323 if compile_prog "" "" ; then
4324   splice=yes
4325 fi
4326
4327 ##########################################
4328 # libnuma probe
4329
4330 if test "$numa" != "no" ; then
4331   cat > $TMPC << EOF
4332 #include <numa.h>
4333 int main(void) { return numa_available(); }
4334 EOF
4335
4336   if compile_prog "" "-lnuma" ; then
4337     numa=yes
4338     libs_softmmu="-lnuma $libs_softmmu"
4339   else
4340     if test "$numa" = "yes" ; then
4341       feature_not_found "numa" "install numactl devel"
4342     fi
4343     numa=no
4344   fi
4345 fi
4346
4347 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4348     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4349     exit 1
4350 fi
4351
4352 # Even if malloc_trim() is available, these non-libc memory allocators
4353 # do not support it.
4354 if test "$tcmalloc" = "yes" || test "$jemalloc" = "yes" ; then
4355     if test "$malloc_trim" = "yes" ; then
4356         echo "Disabling malloc_trim with non-libc memory allocator"
4357     fi
4358     malloc_trim="no"
4359 fi
4360
4361 #######################################
4362 # malloc_trim
4363
4364 if test "$malloc_trim" != "no" ; then
4365     cat > $TMPC << EOF
4366 #include <malloc.h>
4367 int main(void) { malloc_trim(0); return 0; }
4368 EOF
4369     if compile_prog "" "" ; then
4370         malloc_trim="yes"
4371     else
4372         malloc_trim="no"
4373     fi
4374 fi
4375
4376 ##########################################
4377 # tcmalloc probe
4378
4379 if test "$tcmalloc" = "yes" ; then
4380   cat > $TMPC << EOF
4381 #include <stdlib.h>
4382 int main(void) { malloc(1); return 0; }
4383 EOF
4384
4385   if compile_prog "" "-ltcmalloc" ; then
4386     LIBS="-ltcmalloc $LIBS"
4387   else
4388     feature_not_found "tcmalloc" "install gperftools devel"
4389   fi
4390 fi
4391
4392 ##########################################
4393 # jemalloc probe
4394
4395 if test "$jemalloc" = "yes" ; then
4396   cat > $TMPC << EOF
4397 #include <stdlib.h>
4398 int main(void) { malloc(1); return 0; }
4399 EOF
4400
4401   if compile_prog "" "-ljemalloc" ; then
4402     LIBS="-ljemalloc $LIBS"
4403   else
4404     feature_not_found "jemalloc" "install jemalloc devel"
4405   fi
4406 fi
4407
4408 ##########################################
4409 # signalfd probe
4410 signalfd="no"
4411 cat > $TMPC << EOF
4412 #include <unistd.h>
4413 #include <sys/syscall.h>
4414 #include <signal.h>
4415 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4416 EOF
4417
4418 if compile_prog "" "" ; then
4419   signalfd=yes
4420 fi
4421
4422 # check if optreset global is declared by <getopt.h>
4423 optreset="no"
4424 cat > $TMPC << EOF
4425 #include <getopt.h>
4426 int main(void) { return optreset; }
4427 EOF
4428
4429 if compile_prog "" "" ; then
4430   optreset=yes
4431 fi
4432
4433 # check if eventfd is supported
4434 eventfd=no
4435 cat > $TMPC << EOF
4436 #include <sys/eventfd.h>
4437
4438 int main(void)
4439 {
4440     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4441 }
4442 EOF
4443 if compile_prog "" "" ; then
4444   eventfd=yes
4445 fi
4446
4447 # check if memfd is supported
4448 memfd=no
4449 cat > $TMPC << EOF
4450 #include <sys/mman.h>
4451
4452 int main(void)
4453 {
4454     return memfd_create("foo", MFD_ALLOW_SEALING);
4455 }
4456 EOF
4457 if compile_prog "" "" ; then
4458   memfd=yes
4459 fi
4460
4461 # check for usbfs
4462 have_usbfs=no
4463 if test "$linux_user" = "yes"; then
4464   cat > $TMPC << EOF
4465 #include <linux/usbdevice_fs.h>
4466
4467 #ifndef USBDEVFS_GET_CAPABILITIES
4468 #error "USBDEVFS_GET_CAPABILITIES undefined"
4469 #endif
4470
4471 #ifndef USBDEVFS_DISCONNECT_CLAIM
4472 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4473 #endif
4474
4475 int main(void)
4476 {
4477     return 0;
4478 }
4479 EOF
4480   if compile_prog "" ""; then
4481     have_usbfs=yes
4482   fi
4483 fi
4484
4485 # check for fallocate
4486 fallocate=no
4487 cat > $TMPC << EOF
4488 #include <fcntl.h>
4489
4490 int main(void)
4491 {
4492     fallocate(0, 0, 0, 0);
4493     return 0;
4494 }
4495 EOF
4496 if compile_prog "" "" ; then
4497   fallocate=yes
4498 fi
4499
4500 # check for fallocate hole punching
4501 fallocate_punch_hole=no
4502 cat > $TMPC << EOF
4503 #include <fcntl.h>
4504 #include <linux/falloc.h>
4505
4506 int main(void)
4507 {
4508     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4509     return 0;
4510 }
4511 EOF
4512 if compile_prog "" "" ; then
4513   fallocate_punch_hole=yes
4514 fi
4515
4516 # check that fallocate supports range zeroing inside the file
4517 fallocate_zero_range=no
4518 cat > $TMPC << EOF
4519 #include <fcntl.h>
4520 #include <linux/falloc.h>
4521
4522 int main(void)
4523 {
4524     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4525     return 0;
4526 }
4527 EOF
4528 if compile_prog "" "" ; then
4529   fallocate_zero_range=yes
4530 fi
4531
4532 # check for posix_fallocate
4533 posix_fallocate=no
4534 cat > $TMPC << EOF
4535 #include <fcntl.h>
4536
4537 int main(void)
4538 {
4539     posix_fallocate(0, 0, 0);
4540     return 0;
4541 }
4542 EOF
4543 if compile_prog "" "" ; then
4544     posix_fallocate=yes
4545 fi
4546
4547 # check for sync_file_range
4548 sync_file_range=no
4549 cat > $TMPC << EOF
4550 #include <fcntl.h>
4551
4552 int main(void)
4553 {
4554     sync_file_range(0, 0, 0, 0);
4555     return 0;
4556 }
4557 EOF
4558 if compile_prog "" "" ; then
4559   sync_file_range=yes
4560 fi
4561
4562 # check for linux/fiemap.h and FS_IOC_FIEMAP
4563 fiemap=no
4564 cat > $TMPC << EOF
4565 #include <sys/ioctl.h>
4566 #include <linux/fs.h>
4567 #include <linux/fiemap.h>
4568
4569 int main(void)
4570 {
4571     ioctl(0, FS_IOC_FIEMAP, 0);
4572     return 0;
4573 }
4574 EOF
4575 if compile_prog "" "" ; then
4576   fiemap=yes
4577 fi
4578
4579 # check for dup3
4580 dup3=no
4581 cat > $TMPC << EOF
4582 #include <unistd.h>
4583
4584 int main(void)
4585 {
4586     dup3(0, 0, 0);
4587     return 0;
4588 }
4589 EOF
4590 if compile_prog "" "" ; then
4591   dup3=yes
4592 fi
4593
4594 # check for ppoll support
4595 ppoll=no
4596 cat > $TMPC << EOF
4597 #include <poll.h>
4598
4599 int main(void)
4600 {
4601     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4602     ppoll(&pfd, 1, 0, 0);
4603     return 0;
4604 }
4605 EOF
4606 if compile_prog "" "" ; then
4607   ppoll=yes
4608 fi
4609
4610 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4611 prctl_pr_set_timerslack=no
4612 cat > $TMPC << EOF
4613 #include <sys/prctl.h>
4614
4615 int main(void)
4616 {
4617     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4618     return 0;
4619 }
4620 EOF
4621 if compile_prog "" "" ; then
4622   prctl_pr_set_timerslack=yes
4623 fi
4624
4625 # check for epoll support
4626 epoll=no
4627 cat > $TMPC << EOF
4628 #include <sys/epoll.h>
4629
4630 int main(void)
4631 {
4632     epoll_create(0);
4633     return 0;
4634 }
4635 EOF
4636 if compile_prog "" "" ; then
4637   epoll=yes
4638 fi
4639
4640 # epoll_create1 is a later addition
4641 # so we must check separately for its presence
4642 epoll_create1=no
4643 cat > $TMPC << EOF
4644 #include <sys/epoll.h>
4645
4646 int main(void)
4647 {
4648     /* Note that we use epoll_create1 as a value, not as
4649      * a function being called. This is necessary so that on
4650      * old SPARC glibc versions where the function was present in
4651      * the library but not declared in the header file we will
4652      * fail the configure check. (Otherwise we will get a compiler
4653      * warning but not an error, and will proceed to fail the
4654      * qemu compile where we compile with -Werror.)
4655      */
4656     return (int)(uintptr_t)&epoll_create1;
4657 }
4658 EOF
4659 if compile_prog "" "" ; then
4660   epoll_create1=yes
4661 fi
4662
4663 # check for sendfile support
4664 sendfile=no
4665 cat > $TMPC << EOF
4666 #include <sys/sendfile.h>
4667
4668 int main(void)
4669 {
4670     return sendfile(0, 0, 0, 0);
4671 }
4672 EOF
4673 if compile_prog "" "" ; then
4674   sendfile=yes
4675 fi
4676
4677 # check for timerfd support (glibc 2.8 and newer)
4678 timerfd=no
4679 cat > $TMPC << EOF
4680 #include <sys/timerfd.h>
4681
4682 int main(void)
4683 {
4684     return(timerfd_create(CLOCK_REALTIME, 0));
4685 }
4686 EOF
4687 if compile_prog "" "" ; then
4688   timerfd=yes
4689 fi
4690
4691 # check for setns and unshare support
4692 setns=no
4693 cat > $TMPC << EOF
4694 #include <sched.h>
4695
4696 int main(void)
4697 {
4698     int ret;
4699     ret = setns(0, 0);
4700     ret = unshare(0);
4701     return ret;
4702 }
4703 EOF
4704 if compile_prog "" "" ; then
4705   setns=yes
4706 fi
4707
4708 # clock_adjtime probe
4709 clock_adjtime=no
4710 cat > $TMPC <<EOF
4711 #include <time.h>
4712
4713 int main(void)
4714 {
4715     return clock_adjtime(0, 0);
4716 }
4717 EOF
4718 clock_adjtime=no
4719 if compile_prog "" "" ; then
4720   clock_adjtime=yes
4721 fi
4722
4723 # syncfs probe
4724 syncfs=no
4725 cat > $TMPC <<EOF
4726 #include <unistd.h>
4727
4728 int main(void)
4729 {
4730     return syncfs(0);
4731 }
4732 EOF
4733 syncfs=no
4734 if compile_prog "" "" ; then
4735   syncfs=yes
4736 fi
4737
4738 # Check we have a new enough version of sphinx-build
4739 has_sphinx_build() {
4740     # This is a bit awkward but works: create a trivial document and
4741     # try to run it with our configuration file (which enforces a
4742     # version requirement). This will fail if either
4743     # sphinx-build doesn't exist at all or if it is too old.
4744     mkdir -p "$TMPDIR1/sphinx"
4745     touch "$TMPDIR1/sphinx/index.rst"
4746     sphinx-build -c "$source_path/docs" -b html "$TMPDIR1/sphinx" "$TMPDIR1/sphinx/out" >/dev/null 2>&1
4747 }
4748
4749 # Check if tools are available to build documentation.
4750 if test "$docs" != "no" ; then
4751   if has makeinfo && has pod2man && has_sphinx_build; then
4752     docs=yes
4753   else
4754     if test "$docs" = "yes" ; then
4755       feature_not_found "docs" "Install texinfo, Perl/perl-podlators and python-sphinx"
4756     fi
4757     docs=no
4758   fi
4759 fi
4760
4761 # Search for bswap_32 function
4762 byteswap_h=no
4763 cat > $TMPC << EOF
4764 #include <byteswap.h>
4765 int main(void) { return bswap_32(0); }
4766 EOF
4767 if compile_prog "" "" ; then
4768   byteswap_h=yes
4769 fi
4770
4771 # Search for bswap32 function
4772 bswap_h=no
4773 cat > $TMPC << EOF
4774 #include <sys/endian.h>
4775 #include <sys/types.h>
4776 #include <machine/bswap.h>
4777 int main(void) { return bswap32(0); }
4778 EOF
4779 if compile_prog "" "" ; then
4780   bswap_h=yes
4781 fi
4782
4783 ##########################################
4784 # Do we have libiscsi >= 1.9.0
4785 if test "$libiscsi" != "no" ; then
4786   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4787     libiscsi="yes"
4788     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4789     libiscsi_libs=$($pkg_config --libs libiscsi)
4790   else
4791     if test "$libiscsi" = "yes" ; then
4792       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4793     fi
4794     libiscsi="no"
4795   fi
4796 fi
4797
4798 ##########################################
4799 # Do we need libm
4800 cat > $TMPC << EOF
4801 #include <math.h>
4802 int main(int argc, char **argv) { return isnan(sin((double)argc)); }
4803 EOF
4804 if compile_prog "" "" ; then
4805   :
4806 elif compile_prog "" "-lm" ; then
4807   LIBS="-lm $LIBS"
4808   libs_qga="-lm $libs_qga"
4809 else
4810   error_exit "libm check failed"
4811 fi
4812
4813 ##########################################
4814 # Do we need librt
4815 # uClibc provides 2 versions of clock_gettime(), one with realtime
4816 # support and one without. This means that the clock_gettime() don't
4817 # need -lrt. We still need it for timer_create() so we check for this
4818 # function in addition.
4819 cat > $TMPC <<EOF
4820 #include <signal.h>
4821 #include <time.h>
4822 int main(void) {
4823   timer_create(CLOCK_REALTIME, NULL, NULL);
4824   return clock_gettime(CLOCK_REALTIME, NULL);
4825 }
4826 EOF
4827
4828 if compile_prog "" "" ; then
4829   :
4830 # we need pthread for static linking. use previous pthread test result
4831 elif compile_prog "" "$pthread_lib -lrt" ; then
4832   LIBS="$LIBS -lrt"
4833   libs_qga="$libs_qga -lrt"
4834 fi
4835
4836 # Check whether we need to link libutil for openpty()
4837 cat > $TMPC << EOF
4838 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4839 int main(void) { return openpty(0, 0, 0, 0, 0); }
4840 EOF
4841
4842 if ! compile_prog "" "" ; then
4843   if compile_prog "" "-lutil" ; then
4844     libs_softmmu="-lutil $libs_softmmu"
4845     libs_tools="-lutil $libs_tools"
4846   fi
4847 fi
4848
4849 ##########################################
4850 # spice probe
4851 if test "$spice" != "no" ; then
4852   cat > $TMPC << EOF
4853 #include <spice.h>
4854 int main(void) { spice_server_new(); return 0; }
4855 EOF
4856   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4857   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4858   if $pkg_config --atleast-version=0.12.5 spice-server && \
4859      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4860      compile_prog "$spice_cflags" "$spice_libs" ; then
4861     spice="yes"
4862     libs_softmmu="$libs_softmmu $spice_libs"
4863     QEMU_CFLAGS="$QEMU_CFLAGS $spice_cflags"
4864     spice_protocol_version=$($pkg_config --modversion spice-protocol)
4865     spice_server_version=$($pkg_config --modversion spice-server)
4866   else
4867     if test "$spice" = "yes" ; then
4868       feature_not_found "spice" \
4869           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4870     fi
4871     spice="no"
4872   fi
4873 fi
4874
4875 # check for smartcard support
4876 if test "$smartcard" != "no"; then
4877     if $pkg_config --atleast-version=2.5.1 libcacard; then
4878         libcacard_cflags=$($pkg_config --cflags libcacard)
4879         libcacard_libs=$($pkg_config --libs libcacard)
4880         smartcard="yes"
4881     else
4882         if test "$smartcard" = "yes"; then
4883             feature_not_found "smartcard" "Install libcacard devel"
4884         fi
4885         smartcard="no"
4886     fi
4887 fi
4888
4889 # check for libusb
4890 if test "$libusb" != "no" ; then
4891     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4892         libusb="yes"
4893         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4894         libusb_libs=$($pkg_config --libs libusb-1.0)
4895     else
4896         if test "$libusb" = "yes"; then
4897             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4898         fi
4899         libusb="no"
4900     fi
4901 fi
4902
4903 # check for usbredirparser for usb network redirection support
4904 if test "$usb_redir" != "no" ; then
4905     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4906         usb_redir="yes"
4907         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4908         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4909     else
4910         if test "$usb_redir" = "yes"; then
4911             feature_not_found "usb-redir" "Install usbredir devel"
4912         fi
4913         usb_redir="no"
4914     fi
4915 fi
4916
4917 ##########################################
4918 # check if we have VSS SDK headers for win
4919
4920 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4921         test "$vss_win32_sdk" != "no" ; then
4922   case "$vss_win32_sdk" in
4923     "")   vss_win32_include="-isystem $source_path" ;;
4924     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4925           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4926           vss_win32_include="-isystem $source_path/.sdk/vss"
4927           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4928           ;;
4929     *)    vss_win32_include="-isystem $vss_win32_sdk"
4930   esac
4931   cat > $TMPC << EOF
4932 #define __MIDL_user_allocate_free_DEFINED__
4933 #include <inc/win2003/vss.h>
4934 int main(void) { return VSS_CTX_BACKUP; }
4935 EOF
4936   if compile_prog "$vss_win32_include" "" ; then
4937     guest_agent_with_vss="yes"
4938     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4939     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4940     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4941   else
4942     if test "$vss_win32_sdk" != "" ; then
4943       echo "ERROR: Please download and install Microsoft VSS SDK:"
4944       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4945       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4946       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4947       echo "ERROR: The headers are extracted in the directory \`inc'."
4948       feature_not_found "VSS support"
4949     fi
4950     guest_agent_with_vss="no"
4951   fi
4952 fi
4953
4954 ##########################################
4955 # lookup Windows platform SDK (if not specified)
4956 # The SDK is needed only to build .tlb (type library) file of guest agent
4957 # VSS provider from the source. It is usually unnecessary because the
4958 # pre-compiled .tlb file is included.
4959
4960 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4961         test "$guest_agent_with_vss" = "yes" ; then
4962   if test -z "$win_sdk"; then
4963     programfiles="$PROGRAMFILES"
4964     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4965     if test -n "$programfiles"; then
4966       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4967     else
4968       feature_not_found "Windows SDK"
4969     fi
4970   elif test "$win_sdk" = "no"; then
4971     win_sdk=""
4972   fi
4973 fi
4974
4975 ##########################################
4976 # check if mingw environment provides a recent ntddscsi.h
4977 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4978   cat > $TMPC << EOF
4979 #include <windows.h>
4980 #include <ntddscsi.h>
4981 int main(void) {
4982 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4983 #error Missing required ioctl definitions
4984 #endif
4985   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4986   return addr.Lun;
4987 }
4988 EOF
4989   if compile_prog "" "" ; then
4990     guest_agent_ntddscsi=yes
4991     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4992   fi
4993 fi
4994
4995 ##########################################
4996 # virgl renderer probe
4997
4998 if test "$virglrenderer" != "no" ; then
4999   cat > $TMPC << EOF
5000 #include <virglrenderer.h>
5001 int main(void) { virgl_renderer_poll(); return 0; }
5002 EOF
5003   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
5004   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
5005   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
5006   if $pkg_config virglrenderer >/dev/null 2>&1 && \
5007      compile_prog "$virgl_cflags" "$virgl_libs" ; then
5008     virglrenderer="yes"
5009   else
5010     if test "$virglrenderer" = "yes" ; then
5011       feature_not_found "virglrenderer"
5012     fi
5013     virglrenderer="no"
5014   fi
5015 fi
5016
5017 ##########################################
5018 # capstone
5019
5020 case "$capstone" in
5021   "" | yes)
5022     if $pkg_config capstone; then
5023       capstone=system
5024     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5025       capstone=git
5026     elif test -e "${source_path}/capstone/Makefile" ; then
5027       capstone=internal
5028     elif test -z "$capstone" ; then
5029       capstone=no
5030     else
5031       feature_not_found "capstone" "Install capstone devel or git submodule"
5032     fi
5033     ;;
5034
5035   system)
5036     if ! $pkg_config capstone; then
5037       feature_not_found "capstone" "Install capstone devel"
5038     fi
5039     ;;
5040 esac
5041
5042 case "$capstone" in
5043   git | internal)
5044     if test "$capstone" = git; then
5045       git_submodules="${git_submodules} capstone"
5046     fi
5047     mkdir -p capstone
5048     QEMU_CFLAGS="$QEMU_CFLAGS -I\$(SRC_PATH)/capstone/include"
5049     if test "$mingw32" = "yes"; then
5050       LIBCAPSTONE=capstone.lib
5051     else
5052       LIBCAPSTONE=libcapstone.a
5053     fi
5054     LIBS="-L\$(BUILD_DIR)/capstone -lcapstone $LIBS"
5055     ;;
5056
5057   system)
5058     QEMU_CFLAGS="$QEMU_CFLAGS $($pkg_config --cflags capstone)"
5059     LIBS="$($pkg_config --libs capstone) $LIBS"
5060     ;;
5061
5062   no)
5063     ;;
5064   *)
5065     error_exit "Unknown state for capstone: $capstone"
5066     ;;
5067 esac
5068
5069 ##########################################
5070 # check if we have fdatasync
5071
5072 fdatasync=no
5073 cat > $TMPC << EOF
5074 #include <unistd.h>
5075 int main(void) {
5076 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
5077 return fdatasync(0);
5078 #else
5079 #error Not supported
5080 #endif
5081 }
5082 EOF
5083 if compile_prog "" "" ; then
5084     fdatasync=yes
5085 fi
5086
5087 ##########################################
5088 # check if we have madvise
5089
5090 madvise=no
5091 cat > $TMPC << EOF
5092 #include <sys/types.h>
5093 #include <sys/mman.h>
5094 #include <stddef.h>
5095 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
5096 EOF
5097 if compile_prog "" "" ; then
5098     madvise=yes
5099 fi
5100
5101 ##########################################
5102 # check if we have posix_madvise
5103
5104 posix_madvise=no
5105 cat > $TMPC << EOF
5106 #include <sys/mman.h>
5107 #include <stddef.h>
5108 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
5109 EOF
5110 if compile_prog "" "" ; then
5111     posix_madvise=yes
5112 fi
5113
5114 ##########################################
5115 # check if we have posix_memalign()
5116
5117 posix_memalign=no
5118 cat > $TMPC << EOF
5119 #include <stdlib.h>
5120 int main(void) {
5121     void *p;
5122     return posix_memalign(&p, 8, 8);
5123 }
5124 EOF
5125 if compile_prog "" "" ; then
5126     posix_memalign=yes
5127 fi
5128
5129 ##########################################
5130 # check if we have posix_syslog
5131
5132 posix_syslog=no
5133 cat > $TMPC << EOF
5134 #include <syslog.h>
5135 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
5136 EOF
5137 if compile_prog "" "" ; then
5138     posix_syslog=yes
5139 fi
5140
5141 ##########################################
5142 # check if we have sem_timedwait
5143
5144 sem_timedwait=no
5145 cat > $TMPC << EOF
5146 #include <semaphore.h>
5147 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
5148 EOF
5149 if compile_prog "" "" ; then
5150     sem_timedwait=yes
5151 fi
5152
5153 ##########################################
5154 # check if we have strchrnul
5155
5156 strchrnul=no
5157 cat > $TMPC << EOF
5158 #include <string.h>
5159 int main(void);
5160 // Use a haystack that the compiler shouldn't be able to constant fold
5161 char *haystack = (char*)&main;
5162 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
5163 EOF
5164 if compile_prog "" "" ; then
5165     strchrnul=yes
5166 fi
5167
5168 ##########################################
5169 # check if trace backend exists
5170
5171 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
5172 if test "$?" -ne 0 ; then
5173   error_exit "invalid trace backends" \
5174       "Please choose supported trace backends."
5175 fi
5176
5177 ##########################################
5178 # For 'ust' backend, test if ust headers are present
5179 if have_backend "ust"; then
5180   cat > $TMPC << EOF
5181 #include <lttng/tracepoint.h>
5182 int main(void) { return 0; }
5183 EOF
5184   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
5185     if $pkg_config lttng-ust --exists; then
5186       lttng_ust_libs=$($pkg_config --libs lttng-ust)
5187     else
5188       lttng_ust_libs="-llttng-ust -ldl"
5189     fi
5190     if $pkg_config liburcu-bp --exists; then
5191       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
5192     else
5193       urcu_bp_libs="-lurcu-bp"
5194     fi
5195
5196     LIBS="$lttng_ust_libs $urcu_bp_libs $LIBS"
5197     libs_qga="$lttng_ust_libs $urcu_bp_libs $libs_qga"
5198   else
5199     error_exit "Trace backend 'ust' missing lttng-ust header files"
5200   fi
5201 fi
5202
5203 ##########################################
5204 # For 'dtrace' backend, test if 'dtrace' command is present
5205 if have_backend "dtrace"; then
5206   if ! has 'dtrace' ; then
5207     error_exit "dtrace command is not found in PATH $PATH"
5208   fi
5209   trace_backend_stap="no"
5210   if has 'stap' ; then
5211     trace_backend_stap="yes"
5212   fi
5213 fi
5214
5215 ##########################################
5216 # check and set a backend for coroutine
5217
5218 # We prefer ucontext, but it's not always possible. The fallback
5219 # is sigcontext. On Windows the only valid backend is the Windows
5220 # specific one.
5221
5222 ucontext_works=no
5223 if test "$darwin" != "yes"; then
5224   cat > $TMPC << EOF
5225 #include <ucontext.h>
5226 #ifdef __stub_makecontext
5227 #error Ignoring glibc stub makecontext which will always fail
5228 #endif
5229 int main(void) { makecontext(0, 0, 0); return 0; }
5230 EOF
5231   if compile_prog "" "" ; then
5232     ucontext_works=yes
5233   fi
5234 fi
5235
5236 if test "$coroutine" = ""; then
5237   if test "$mingw32" = "yes"; then
5238     coroutine=win32
5239   elif test "$ucontext_works" = "yes"; then
5240     coroutine=ucontext
5241   else
5242     coroutine=sigaltstack
5243   fi
5244 else
5245   case $coroutine in
5246   windows)
5247     if test "$mingw32" != "yes"; then
5248       error_exit "'windows' coroutine backend only valid for Windows"
5249     fi
5250     # Unfortunately the user visible backend name doesn't match the
5251     # coroutine-*.c filename for this case, so we have to adjust it here.
5252     coroutine=win32
5253     ;;
5254   ucontext)
5255     if test "$ucontext_works" != "yes"; then
5256       feature_not_found "ucontext"
5257     fi
5258     ;;
5259   sigaltstack)
5260     if test "$mingw32" = "yes"; then
5261       error_exit "only the 'windows' coroutine backend is valid for Windows"
5262     fi
5263     ;;
5264   *)
5265     error_exit "unknown coroutine backend $coroutine"
5266     ;;
5267   esac
5268 fi
5269
5270 if test "$coroutine_pool" = ""; then
5271   coroutine_pool=yes
5272 fi
5273
5274 if test "$debug_stack_usage" = "yes"; then
5275   if test "$coroutine_pool" = "yes"; then
5276     echo "WARN: disabling coroutine pool for stack usage debugging"
5277     coroutine_pool=no
5278   fi
5279 fi
5280
5281
5282 ##########################################
5283 # check if we have open_by_handle_at
5284
5285 open_by_handle_at=no
5286 cat > $TMPC << EOF
5287 #include <fcntl.h>
5288 #if !defined(AT_EMPTY_PATH)
5289 # error missing definition
5290 #else
5291 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
5292 #endif
5293 EOF
5294 if compile_prog "" "" ; then
5295     open_by_handle_at=yes
5296 fi
5297
5298 ########################################
5299 # check if we have linux/magic.h
5300
5301 linux_magic_h=no
5302 cat > $TMPC << EOF
5303 #include <linux/magic.h>
5304 int main(void) {
5305   return 0;
5306 }
5307 EOF
5308 if compile_prog "" "" ; then
5309     linux_magic_h=yes
5310 fi
5311
5312 ########################################
5313 # check whether we can disable warning option with a pragma (this is needed
5314 # to silence warnings in the headers of some versions of external libraries).
5315 # This test has to be compiled with -Werror as otherwise an unknown pragma is
5316 # only a warning.
5317 #
5318 # If we can't selectively disable warning in the code, disable -Werror so that
5319 # the build doesn't fail anyway.
5320
5321 pragma_disable_unused_but_set=no
5322 cat > $TMPC << EOF
5323 #pragma GCC diagnostic push
5324 #pragma GCC diagnostic ignored "-Wstrict-prototypes"
5325 #pragma GCC diagnostic pop
5326
5327 int main(void) {
5328     return 0;
5329 }
5330 EOF
5331 if compile_prog "-Werror" "" ; then
5332     pragma_diagnostic_available=yes
5333 else
5334     werror=no
5335 fi
5336
5337 ########################################
5338 # check if we have valgrind/valgrind.h
5339
5340 valgrind_h=no
5341 cat > $TMPC << EOF
5342 #include <valgrind/valgrind.h>
5343 int main(void) {
5344   return 0;
5345 }
5346 EOF
5347 if compile_prog "" "" ; then
5348     valgrind_h=yes
5349 fi
5350
5351 ########################################
5352 # check if environ is declared
5353
5354 has_environ=no
5355 cat > $TMPC << EOF
5356 #include <unistd.h>
5357 int main(void) {
5358     environ = 0;
5359     return 0;
5360 }
5361 EOF
5362 if compile_prog "" "" ; then
5363     has_environ=yes
5364 fi
5365
5366 ########################################
5367 # check if cpuid.h is usable.
5368
5369 cat > $TMPC << EOF
5370 #include <cpuid.h>
5371 int main(void) {
5372     unsigned a, b, c, d;
5373     int max = __get_cpuid_max(0, 0);
5374
5375     if (max >= 1) {
5376         __cpuid(1, a, b, c, d);
5377     }
5378
5379     if (max >= 7) {
5380         __cpuid_count(7, 0, a, b, c, d);
5381     }
5382
5383     return 0;
5384 }
5385 EOF
5386 if compile_prog "" "" ; then
5387     cpuid_h=yes
5388 fi
5389
5390 ##########################################
5391 # avx2 optimization requirement check
5392 #
5393 # There is no point enabling this if cpuid.h is not usable,
5394 # since we won't be able to select the new routines.
5395
5396 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5397   cat > $TMPC << EOF
5398 #pragma GCC push_options
5399 #pragma GCC target("avx2")
5400 #include <cpuid.h>
5401 #include <immintrin.h>
5402 static int bar(void *a) {
5403     __m256i x = *(__m256i *)a;
5404     return _mm256_testz_si256(x, x);
5405 }
5406 int main(int argc, char *argv[]) { return bar(argv[0]); }
5407 EOF
5408   if compile_object "" ; then
5409     avx2_opt="yes"
5410   else
5411     avx2_opt="no"
5412   fi
5413 fi
5414
5415 ########################################
5416 # check if __[u]int128_t is usable.
5417
5418 int128=no
5419 cat > $TMPC << EOF
5420 __int128_t a;
5421 __uint128_t b;
5422 int main (void) {
5423   a = a + b;
5424   b = a * b;
5425   a = a * a;
5426   return 0;
5427 }
5428 EOF
5429 if compile_prog "" "" ; then
5430     int128=yes
5431 fi
5432
5433 #########################################
5434 # See if 128-bit atomic operations are supported.
5435
5436 atomic128=no
5437 if test "$int128" = "yes"; then
5438   cat > $TMPC << EOF
5439 int main(void)
5440 {
5441   unsigned __int128 x = 0, y = 0;
5442   y = __atomic_load_16(&x, 0);
5443   __atomic_store_16(&x, y, 0);
5444   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5445   return 0;
5446 }
5447 EOF
5448   if compile_prog "" "" ; then
5449     atomic128=yes
5450   fi
5451 fi
5452
5453 cmpxchg128=no
5454 if test "$int128" = yes && test "$atomic128" = no; then
5455   cat > $TMPC << EOF
5456 int main(void)
5457 {
5458   unsigned __int128 x = 0, y = 0;
5459   __sync_val_compare_and_swap_16(&x, y, x);
5460   return 0;
5461 }
5462 EOF
5463   if compile_prog "" "" ; then
5464     cmpxchg128=yes
5465   fi
5466 fi
5467
5468 #########################################
5469 # See if 64-bit atomic operations are supported.
5470 # Note that without __atomic builtins, we can only
5471 # assume atomic loads/stores max at pointer size.
5472
5473 cat > $TMPC << EOF
5474 #include <stdint.h>
5475 int main(void)
5476 {
5477   uint64_t x = 0, y = 0;
5478 #ifdef __ATOMIC_RELAXED
5479   y = __atomic_load_8(&x, 0);
5480   __atomic_store_8(&x, y, 0);
5481   __atomic_compare_exchange_8(&x, &y, x, 0, 0, 0);
5482   __atomic_exchange_8(&x, y, 0);
5483   __atomic_fetch_add_8(&x, y, 0);
5484 #else
5485   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5486   __sync_lock_test_and_set(&x, y);
5487   __sync_val_compare_and_swap(&x, y, 0);
5488   __sync_fetch_and_add(&x, y);
5489 #endif
5490   return 0;
5491 }
5492 EOF
5493 if compile_prog "" "" ; then
5494   atomic64=yes
5495 fi
5496
5497 ########################################
5498 # See if 16-byte vector operations are supported.
5499 # Even without a vector unit the compiler may expand these.
5500 # There is a bug in old GCC for PPC that crashes here.
5501 # Unfortunately it's the system compiler for Centos 7.
5502
5503 cat > $TMPC << EOF
5504 typedef unsigned char U1 __attribute__((vector_size(16)));
5505 typedef unsigned short U2 __attribute__((vector_size(16)));
5506 typedef unsigned int U4 __attribute__((vector_size(16)));
5507 typedef unsigned long long U8 __attribute__((vector_size(16)));
5508 typedef signed char S1 __attribute__((vector_size(16)));
5509 typedef signed short S2 __attribute__((vector_size(16)));
5510 typedef signed int S4 __attribute__((vector_size(16)));
5511 typedef signed long long S8 __attribute__((vector_size(16)));
5512 static U1 a1, b1;
5513 static U2 a2, b2;
5514 static U4 a4, b4;
5515 static U8 a8, b8;
5516 static S1 c1;
5517 static S2 c2;
5518 static S4 c4;
5519 static S8 c8;
5520 static int i;
5521 void helper(void *d, void *a, int shift, int i);
5522 void helper(void *d, void *a, int shift, int i)
5523 {
5524   *(U1 *)(d + i) = *(U1 *)(a + i) << shift;
5525   *(U2 *)(d + i) = *(U2 *)(a + i) << shift;
5526   *(U4 *)(d + i) = *(U4 *)(a + i) << shift;
5527   *(U8 *)(d + i) = *(U8 *)(a + i) << shift;
5528 }
5529 int main(void)
5530 {
5531   a1 += b1; a2 += b2; a4 += b4; a8 += b8;
5532   a1 -= b1; a2 -= b2; a4 -= b4; a8 -= b8;
5533   a1 *= b1; a2 *= b2; a4 *= b4; a8 *= b8;
5534   a1 &= b1; a2 &= b2; a4 &= b4; a8 &= b8;
5535   a1 |= b1; a2 |= b2; a4 |= b4; a8 |= b8;
5536   a1 ^= b1; a2 ^= b2; a4 ^= b4; a8 ^= b8;
5537   a1 <<= i; a2 <<= i; a4 <<= i; a8 <<= i;
5538   a1 >>= i; a2 >>= i; a4 >>= i; a8 >>= i;
5539   c1 >>= i; c2 >>= i; c4 >>= i; c8 >>= i;
5540   return 0;
5541 }
5542 EOF
5543
5544 vector16=no
5545 if compile_prog "" "" ; then
5546   vector16=yes
5547 fi
5548
5549 ########################################
5550 # check if getauxval is available.
5551
5552 getauxval=no
5553 cat > $TMPC << EOF
5554 #include <sys/auxv.h>
5555 int main(void) {
5556   return getauxval(AT_HWCAP) == 0;
5557 }
5558 EOF
5559 if compile_prog "" "" ; then
5560     getauxval=yes
5561 fi
5562
5563 ########################################
5564 # check if ccache is interfering with
5565 # semantic analysis of macros
5566
5567 unset CCACHE_CPP2
5568 ccache_cpp2=no
5569 cat > $TMPC << EOF
5570 static const int Z = 1;
5571 #define fn() ({ Z; })
5572 #define TAUT(X) ((X) == Z)
5573 #define PAREN(X, Y) (X == Y)
5574 #define ID(X) (X)
5575 int main(int argc, char *argv[])
5576 {
5577     int x = 0, y = 0;
5578     x = ID(x);
5579     x = fn();
5580     fn();
5581     if (PAREN(x, y)) return 0;
5582     if (TAUT(Z)) return 0;
5583     return 0;
5584 }
5585 EOF
5586
5587 if ! compile_object "-Werror"; then
5588     ccache_cpp2=yes
5589 fi
5590
5591 #################################################
5592 # clang does not support glibc + FORTIFY_SOURCE.
5593
5594 if test "$fortify_source" != "no"; then
5595   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5596     fortify_source="no";
5597   elif test -n "$cxx" && has $cxx &&
5598        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5599     fortify_source="no";
5600   else
5601     fortify_source="yes"
5602   fi
5603 fi
5604
5605 ###############################################
5606 # Check if copy_file_range is provided by glibc
5607 have_copy_file_range=no
5608 cat > $TMPC << EOF
5609 #include <unistd.h>
5610 int main(void) {
5611   copy_file_range(0, NULL, 0, NULL, 0, 0);
5612   return 0;
5613 }
5614 EOF
5615 if compile_prog "" "" ; then
5616     have_copy_file_range=yes
5617 fi
5618
5619 ##########################################
5620 # check if struct fsxattr is available via linux/fs.h
5621
5622 have_fsxattr=no
5623 cat > $TMPC << EOF
5624 #include <linux/fs.h>
5625 struct fsxattr foo;
5626 int main(void) {
5627   return 0;
5628 }
5629 EOF
5630 if compile_prog "" "" ; then
5631     have_fsxattr=yes
5632 fi
5633
5634 ##########################################
5635 # check for usable membarrier system call
5636 if test "$membarrier" = "yes"; then
5637     have_membarrier=no
5638     if test "$mingw32" = "yes" ; then
5639         have_membarrier=yes
5640     elif test "$linux" = "yes" ; then
5641         cat > $TMPC << EOF
5642     #include <linux/membarrier.h>
5643     #include <sys/syscall.h>
5644     #include <unistd.h>
5645     #include <stdlib.h>
5646     int main(void) {
5647         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5648         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5649         exit(0);
5650     }
5651 EOF
5652         if compile_prog "" "" ; then
5653             have_membarrier=yes
5654         fi
5655     fi
5656     if test "$have_membarrier" = "no"; then
5657       feature_not_found "membarrier" "membarrier system call not available"
5658     fi
5659 else
5660     # Do not enable it by default even for Mingw32, because it doesn't
5661     # work on Wine.
5662     membarrier=no
5663 fi
5664
5665 ##########################################
5666 # check if rtnetlink.h exists and is useful
5667 have_rtnetlink=no
5668 cat > $TMPC << EOF
5669 #include <linux/rtnetlink.h>
5670 int main(void) {
5671   return IFLA_PROTO_DOWN;
5672 }
5673 EOF
5674 if compile_prog "" "" ; then
5675     have_rtnetlink=yes
5676 fi
5677
5678 ##########################################
5679 # check for usable AF_VSOCK environment
5680 have_af_vsock=no
5681 cat > $TMPC << EOF
5682 #include <errno.h>
5683 #include <sys/types.h>
5684 #include <sys/socket.h>
5685 #if !defined(AF_VSOCK)
5686 # error missing AF_VSOCK flag
5687 #endif
5688 #include <linux/vm_sockets.h>
5689 int main(void) {
5690     int sock, ret;
5691     struct sockaddr_vm svm;
5692     socklen_t len = sizeof(svm);
5693     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5694     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5695     if ((ret == -1) && (errno == ENOTCONN)) {
5696         return 0;
5697     }
5698     return -1;
5699 }
5700 EOF
5701 if compile_prog "" "" ; then
5702     have_af_vsock=yes
5703 fi
5704
5705 ##########################################
5706 # check for usable AF_ALG environment
5707 hava_afalg=no
5708 cat > $TMPC << EOF
5709 #include <errno.h>
5710 #include <sys/types.h>
5711 #include <sys/socket.h>
5712 #include <linux/if_alg.h>
5713 int main(void) {
5714     int sock;
5715     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5716     return sock;
5717 }
5718 EOF
5719 if compile_prog "" "" ; then
5720     have_afalg=yes
5721 fi
5722 if test "$crypto_afalg" = "yes"
5723 then
5724     if test "$have_afalg" != "yes"
5725     then
5726         error_exit "AF_ALG requested but could not be detected"
5727     fi
5728 fi
5729
5730
5731 #################################################
5732 # Check to see if we have the Hypervisor framework
5733 if [ "$darwin" = "yes" ] ; then
5734   cat > $TMPC << EOF
5735 #include <Hypervisor/hv.h>
5736 int main() { return 0;}
5737 EOF
5738   if ! compile_object ""; then
5739     hvf='no'
5740   else
5741     hvf='yes'
5742     LDFLAGS="-framework Hypervisor $LDFLAGS"
5743   fi
5744 fi
5745
5746 #################################################
5747 # Sparc implicitly links with --relax, which is
5748 # incompatible with -r, so --no-relax should be
5749 # given. It does no harm to give it on other
5750 # platforms too.
5751
5752 # Note: the prototype is needed since QEMU_CFLAGS
5753 #       contains -Wmissing-prototypes
5754 cat > $TMPC << EOF
5755 extern int foo(void);
5756 int foo(void) { return 0; }
5757 EOF
5758 if ! compile_object ""; then
5759   error_exit "Failed to compile object file for LD_REL_FLAGS test"
5760 fi
5761 for i in '-Wl,-r -Wl,--no-relax' -Wl,-r -r; do
5762   if do_cc -nostdlib $i -o $TMPMO $TMPO; then
5763     LD_REL_FLAGS=$i
5764     break
5765   fi
5766 done
5767 if test "$modules" = "yes" && test "$LD_REL_FLAGS" = ""; then
5768   feature_not_found "modules" "Cannot find how to build relocatable objects"
5769 fi
5770
5771 ##########################################
5772 # check for sysmacros.h
5773
5774 have_sysmacros=no
5775 cat > $TMPC << EOF
5776 #include <sys/sysmacros.h>
5777 int main(void) {
5778     return makedev(0, 0);
5779 }
5780 EOF
5781 if compile_prog "" "" ; then
5782     have_sysmacros=yes
5783 fi
5784
5785 ##########################################
5786 # Veritas HyperScale block driver VxHS
5787 # Check if libvxhs is installed
5788
5789 if test "$vxhs" != "no" ; then
5790   cat > $TMPC <<EOF
5791 #include <stdint.h>
5792 #include <qnio/qnio_api.h>
5793
5794 void *vxhs_callback;
5795
5796 int main(void) {
5797     iio_init(QNIO_VERSION, vxhs_callback);
5798     return 0;
5799 }
5800 EOF
5801   vxhs_libs="-lvxhs -lssl"
5802   if compile_prog "" "$vxhs_libs" ; then
5803     vxhs=yes
5804   else
5805     if test "$vxhs" = "yes" ; then
5806       feature_not_found "vxhs block device" "Install libvxhs See github"
5807     fi
5808     vxhs=no
5809   fi
5810 fi
5811
5812 ##########################################
5813 # check for _Static_assert()
5814
5815 have_static_assert=no
5816 cat > $TMPC << EOF
5817 _Static_assert(1, "success");
5818 int main(void) {
5819     return 0;
5820 }
5821 EOF
5822 if compile_prog "" "" ; then
5823     have_static_assert=yes
5824 fi
5825
5826 ##########################################
5827 # check for utmpx.h, it is missing e.g. on OpenBSD
5828
5829 have_utmpx=no
5830 cat > $TMPC << EOF
5831 #include <utmpx.h>
5832 struct utmpx user_info;
5833 int main(void) {
5834     return 0;
5835 }
5836 EOF
5837 if compile_prog "" "" ; then
5838     have_utmpx=yes
5839 fi
5840
5841 ##########################################
5842 # check for getrandom()
5843
5844 have_getrandom=no
5845 cat > $TMPC << EOF
5846 #include <sys/random.h>
5847 int main(void) {
5848     return getrandom(0, 0, GRND_NONBLOCK);
5849 }
5850 EOF
5851 if compile_prog "" "" ; then
5852     have_getrandom=yes
5853 fi
5854
5855 ##########################################
5856 # checks for sanitizers
5857
5858 have_asan=no
5859 have_ubsan=no
5860 have_asan_iface_h=no
5861 have_asan_iface_fiber=no
5862
5863 if test "$sanitizers" = "yes" ; then
5864   write_c_skeleton
5865   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5866       have_asan=yes
5867   fi
5868
5869   # we could use a simple skeleton for flags checks, but this also
5870   # detect the static linking issue of ubsan, see also:
5871   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5872   cat > $TMPC << EOF
5873 #include <stdlib.h>
5874 int main(void) {
5875     void *tmp = malloc(10);
5876     return *(int *)(tmp + 2);
5877 }
5878 EOF
5879   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5880       have_ubsan=yes
5881   fi
5882
5883   if check_include "sanitizer/asan_interface.h" ; then
5884       have_asan_iface_h=yes
5885   fi
5886
5887   cat > $TMPC << EOF
5888 #include <sanitizer/asan_interface.h>
5889 int main(void) {
5890   __sanitizer_start_switch_fiber(0, 0, 0);
5891   return 0;
5892 }
5893 EOF
5894   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5895       have_asan_iface_fiber=yes
5896   fi
5897 fi
5898
5899 ##########################################
5900 # Docker and cross-compiler support
5901 #
5902 # This is specifically for building test
5903 # cases for foreign architectures, not
5904 # cross-compiling QEMU itself.
5905
5906 if has "docker"; then
5907     docker=$($python $source_path/tests/docker/docker.py probe)
5908 fi
5909
5910 ##########################################
5911 # check for libpmem
5912
5913 if test "$libpmem" != "no"; then
5914         if $pkg_config --exists "libpmem"; then
5915                 libpmem="yes"
5916                 libpmem_libs=$($pkg_config --libs libpmem)
5917                 libpmem_cflags=$($pkg_config --cflags libpmem)
5918                 libs_softmmu="$libs_softmmu $libpmem_libs"
5919                 QEMU_CFLAGS="$QEMU_CFLAGS $libpmem_cflags"
5920         else
5921                 if test "$libpmem" = "yes" ; then
5922                         feature_not_found "libpmem" "Install nvml or pmdk"
5923                 fi
5924                 libpmem="no"
5925         fi
5926 fi
5927
5928 ##########################################
5929 # check for slirp
5930
5931 case "$slirp" in
5932   "" | yes)
5933     if $pkg_config slirp; then
5934       slirp=system
5935     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5936       slirp=git
5937     elif test -e "${source_path}/slirp/Makefile" ; then
5938       slirp=internal
5939     elif test -z "$slirp" ; then
5940       slirp=no
5941     else
5942       feature_not_found "slirp" "Install slirp devel or git submodule"
5943     fi
5944     ;;
5945
5946   system)
5947     if ! $pkg_config slirp; then
5948       feature_not_found "slirp" "Install slirp devel"
5949     fi
5950     ;;
5951 esac
5952
5953 case "$slirp" in
5954   git | internal)
5955     if test "$slirp" = git; then
5956       git_submodules="${git_submodules} slirp"
5957     fi
5958     mkdir -p slirp
5959     slirp_cflags="-I\$(SRC_PATH)/slirp/src -I\$(BUILD_DIR)/slirp/src"
5960     slirp_libs="-L\$(BUILD_DIR)/slirp -lslirp"
5961     ;;
5962
5963   system)
5964     slirp_version=$($pkg_config --modversion slirp 2>/dev/null)
5965     slirp_cflags=$($pkg_config --cflags slirp 2>/dev/null)
5966     slirp_libs=$($pkg_config --libs slirp 2>/dev/null)
5967     ;;
5968
5969   no)
5970     ;;
5971   *)
5972     error_exit "Unknown state for slirp: $slirp"
5973     ;;
5974 esac
5975
5976
5977 ##########################################
5978 # End of CC checks
5979 # After here, no more $cc or $ld runs
5980
5981 write_c_skeleton
5982
5983 if test "$gcov" = "yes" ; then
5984   CFLAGS="-fprofile-arcs -ftest-coverage -g $CFLAGS"
5985   LDFLAGS="-fprofile-arcs -ftest-coverage $LDFLAGS"
5986 elif test "$fortify_source" = "yes" ; then
5987   CFLAGS="-O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $CFLAGS"
5988 elif test "$debug" = "no"; then
5989   CFLAGS="-O2 $CFLAGS"
5990 fi
5991
5992 if test "$have_asan" = "yes"; then
5993   CFLAGS="-fsanitize=address $CFLAGS"
5994   if test "$have_asan_iface_h" = "no" ; then
5995       echo "ASAN build enabled, but ASAN header missing." \
5996            "Without code annotation, the report may be inferior."
5997   elif test "$have_asan_iface_fiber" = "no" ; then
5998       echo "ASAN build enabled, but ASAN header is too old." \
5999            "Without code annotation, the report may be inferior."
6000   fi
6001 fi
6002 if test "$have_ubsan" = "yes"; then
6003   CFLAGS="-fsanitize=undefined $CFLAGS"
6004 fi
6005
6006 ##########################################
6007 # Do we have libnfs
6008 if test "$libnfs" != "no" ; then
6009   if $pkg_config --atleast-version=1.9.3 libnfs; then
6010     libnfs="yes"
6011     libnfs_libs=$($pkg_config --libs libnfs)
6012   else
6013     if test "$libnfs" = "yes" ; then
6014       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
6015     fi
6016     libnfs="no"
6017   fi
6018 fi
6019
6020 ##########################################
6021 # Do we have libudev
6022 if test "$libudev" != "no" ; then
6023   if $pkg_config libudev && test "$static" != "yes"; then
6024     libudev="yes"
6025     libudev_libs=$($pkg_config --libs libudev)
6026   else
6027     libudev="no"
6028   fi
6029 fi
6030
6031 # Now we've finished running tests it's OK to add -Werror to the compiler flags
6032 if test "$werror" = "yes"; then
6033     QEMU_CFLAGS="-Werror $QEMU_CFLAGS"
6034 fi
6035
6036 if test "$solaris" = "no" ; then
6037     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
6038         LDFLAGS="-Wl,--warn-common $LDFLAGS"
6039     fi
6040 fi
6041
6042 # test if pod2man has --utf8 option
6043 if pod2man --help | grep -q utf8; then
6044     POD2MAN="pod2man --utf8"
6045 else
6046     POD2MAN="pod2man"
6047 fi
6048
6049 # Use ASLR, no-SEH and DEP if available
6050 if test "$mingw32" = "yes" ; then
6051     for flag in --dynamicbase --no-seh --nxcompat; do
6052         if ld_has $flag ; then
6053             LDFLAGS="-Wl,$flag $LDFLAGS"
6054         fi
6055     done
6056 fi
6057
6058 # Disable OpenBSD W^X if available
6059 if test "$tcg" = "yes" && test "$targetos" = "OpenBSD"; then
6060     cat > $TMPC <<EOF
6061     int main(void) { return 0; }
6062 EOF
6063     wx_ldflags="-Wl,-z,wxneeded"
6064     if compile_prog "" "$wx_ldflags"; then
6065         QEMU_LDFLAGS="$QEMU_LDFLAGS $wx_ldflags"
6066     fi
6067 fi
6068
6069 qemu_confdir=$sysconfdir$confsuffix
6070 qemu_moddir=$libdir$confsuffix
6071 qemu_datadir=$datadir$confsuffix
6072 qemu_localedir="$datadir/locale"
6073 qemu_icondir="$datadir/icons"
6074 qemu_desktopdir="$datadir/applications"
6075
6076 # We can only support ivshmem if we have eventfd
6077 if [ "$eventfd" = "yes" ]; then
6078   ivshmem=yes
6079 fi
6080
6081 tools=""
6082 if test "$want_tools" = "yes" ; then
6083   tools="qemu-img\$(EXESUF) qemu-io\$(EXESUF) qemu-edid\$(EXESUF) $tools"
6084   if [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" ] ; then
6085     tools="qemu-nbd\$(EXESUF) $tools"
6086   fi
6087   if [ "$ivshmem" = "yes" ]; then
6088     tools="ivshmem-client\$(EXESUF) ivshmem-server\$(EXESUF) $tools"
6089   fi
6090   if [ "$curl" = "yes" ]; then
6091       tools="elf2dmp\$(EXESUF) $tools"
6092   fi
6093 fi
6094 if test "$softmmu" = yes ; then
6095   if test "$linux" = yes; then
6096     if test "$virtfs" != no && test "$cap" = yes && test "$attr" = yes ; then
6097       virtfs=yes
6098       tools="$tools fsdev/virtfs-proxy-helper\$(EXESUF)"
6099     else
6100       if test "$virtfs" = yes; then
6101         error_exit "VirtFS requires libcap devel and libattr devel"
6102       fi
6103       virtfs=no
6104     fi
6105     if test "$mpath" != no && test "$mpathpersist" = yes ; then
6106       mpath=yes
6107     else
6108       if test "$mpath" = yes; then
6109         error_exit "Multipath requires libmpathpersist devel"
6110       fi
6111       mpath=no
6112     fi
6113     tools="$tools scsi/qemu-pr-helper\$(EXESUF)"
6114   else
6115     if test "$virtfs" = yes; then
6116       error_exit "VirtFS is supported only on Linux"
6117     fi
6118     virtfs=no
6119     if test "$mpath" = yes; then
6120       error_exit "Multipath is supported only on Linux"
6121     fi
6122     mpath=no
6123   fi
6124   if test "$xkbcommon" = "yes"; then
6125     tools="qemu-keymap\$(EXESUF) $tools"
6126   fi
6127 fi
6128
6129 # Probe for guest agent support/options
6130
6131 if [ "$guest_agent" != "no" ]; then
6132   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
6133       guest_agent=no
6134   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
6135       tools="qemu-ga $tools"
6136       guest_agent=yes
6137   elif [ "$guest_agent" != yes ]; then
6138       guest_agent=no
6139   else
6140       error_exit "Guest agent is not supported on this platform"
6141   fi
6142 fi
6143
6144 # Guest agent Window MSI  package
6145
6146 if test "$guest_agent" != yes; then
6147   if test "$guest_agent_msi" = yes; then
6148     error_exit "MSI guest agent package requires guest agent enabled"
6149   fi
6150   guest_agent_msi=no
6151 elif test "$mingw32" != "yes"; then
6152   if test "$guest_agent_msi" = "yes"; then
6153     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
6154   fi
6155   guest_agent_msi=no
6156 elif ! has wixl; then
6157   if test "$guest_agent_msi" = "yes"; then
6158     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
6159   fi
6160   guest_agent_msi=no
6161 else
6162   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
6163   # disabled explicitly
6164   if test "$guest_agent_msi" != "no"; then
6165     guest_agent_msi=yes
6166   fi
6167 fi
6168
6169 if test "$guest_agent_msi" = "yes"; then
6170   if test "$guest_agent_with_vss" = "yes"; then
6171     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
6172   fi
6173
6174   if test "$QEMU_GA_MANUFACTURER" = ""; then
6175     QEMU_GA_MANUFACTURER=QEMU
6176   fi
6177
6178   if test "$QEMU_GA_DISTRO" = ""; then
6179     QEMU_GA_DISTRO=Linux
6180   fi
6181
6182   if test "$QEMU_GA_VERSION" = ""; then
6183       QEMU_GA_VERSION=$(cat $source_path/VERSION)
6184   fi
6185
6186   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
6187
6188   case "$cpu" in
6189   x86_64)
6190     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
6191     ;;
6192   i386)
6193     QEMU_GA_MSI_ARCH="-D Arch=32"
6194     ;;
6195   *)
6196     error_exit "CPU $cpu not supported for building installation package"
6197     ;;
6198   esac
6199 fi
6200
6201 # Mac OS X ships with a broken assembler
6202 roms=
6203 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
6204         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
6205         test "$softmmu" = yes ; then
6206     # Different host OS linkers have different ideas about the name of the ELF
6207     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
6208     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
6209     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
6210         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
6211             ld_i386_emulation="$emu"
6212             roms="optionrom"
6213             break
6214         fi
6215     done
6216 fi
6217 if test "$ARCH" = "ppc64" && test "$targetos" != "Darwin" ; then
6218   roms="$roms spapr-rtas"
6219 fi
6220
6221 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
6222 if test "$cpu" = "s390x" ; then
6223   write_c_skeleton
6224   if compile_prog "-march=z900" ""; then
6225     roms="$roms s390-ccw"
6226   fi
6227 fi
6228
6229 # Probe for the need for relocating the user-only binary.
6230 if ( [ "$linux_user" = yes ] || [ "$bsd_user" = yes ] ) && [ "$pie" = no ]; then
6231   textseg_addr=
6232   case "$cpu" in
6233     arm | i386 | ppc* | s390* | sparc* | x86_64 | x32)
6234       # ??? Rationale for choosing this address
6235       textseg_addr=0x60000000
6236       ;;
6237     mips)
6238       # A 256M aligned address, high in the address space, with enough
6239       # room for the code_gen_buffer above it before the stack.
6240       textseg_addr=0x60000000
6241       ;;
6242   esac
6243   if [ -n "$textseg_addr" ]; then
6244     cat > $TMPC <<EOF
6245     int main(void) { return 0; }
6246 EOF
6247     textseg_ldflags="-Wl,-Ttext-segment=$textseg_addr"
6248     if ! compile_prog "" "$textseg_ldflags"; then
6249       # In case ld does not support -Ttext-segment, edit the default linker
6250       # script via sed to set the .text start addr.  This is needed on FreeBSD
6251       # at least.
6252       if ! $ld --verbose >/dev/null 2>&1; then
6253         error_exit \
6254             "We need to link the QEMU user mode binaries at a" \
6255             "specific text address. Unfortunately your linker" \
6256             "doesn't support either the -Ttext-segment option or" \
6257             "printing the default linker script with --verbose." \
6258             "If you don't want the user mode binaries, pass the" \
6259             "--disable-user option to configure."
6260       fi
6261
6262       $ld --verbose | sed \
6263         -e '1,/==================================================/d' \
6264         -e '/==================================================/,$d' \
6265         -e "s/[.] = [0-9a-fx]* [+] SIZEOF_HEADERS/. = $textseg_addr + SIZEOF_HEADERS/" \
6266         -e "s/__executable_start = [0-9a-fx]*/__executable_start = $textseg_addr/" > config-host.ld
6267       textseg_ldflags="-Wl,-T../config-host.ld"
6268     fi
6269   fi
6270 fi
6271
6272 # Check that the C++ compiler exists and works with the C compiler.
6273 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
6274 if has $cxx; then
6275     cat > $TMPC <<EOF
6276 int c_function(void);
6277 int main(void) { return c_function(); }
6278 EOF
6279
6280     compile_object
6281
6282     cat > $TMPCXX <<EOF
6283 extern "C" {
6284    int c_function(void);
6285 }
6286 int c_function(void) { return 42; }
6287 EOF
6288
6289     update_cxxflags
6290
6291     if do_cxx $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $LDFLAGS; then
6292         # C++ compiler $cxx works ok with C compiler $cc
6293         :
6294     else
6295         echo "C++ compiler $cxx does not work with C compiler $cc"
6296         echo "Disabling C++ specific optional code"
6297         cxx=
6298     fi
6299 else
6300     echo "No C++ compiler available; disabling C++ specific optional code"
6301     cxx=
6302 fi
6303
6304 echo_version() {
6305     if test "$1" = "yes" ; then
6306         echo "($2)"
6307     fi
6308 }
6309
6310 # prepend pixman and ftd flags after all config tests are done
6311 QEMU_CFLAGS="$pixman_cflags $fdt_cflags $QEMU_CFLAGS"
6312 QEMU_LDFLAGS="$fdt_ldflags $QEMU_LDFLAGS"
6313 libs_softmmu="$pixman_libs $libs_softmmu"
6314
6315 echo "Install prefix    $prefix"
6316 echo "BIOS directory    $(eval echo $qemu_datadir)"
6317 echo "firmware path     $(eval echo $firmwarepath)"
6318 echo "binary directory  $(eval echo $bindir)"
6319 echo "library directory $(eval echo $libdir)"
6320 echo "module directory  $(eval echo $qemu_moddir)"
6321 echo "libexec directory $(eval echo $libexecdir)"
6322 echo "include directory $(eval echo $includedir)"
6323 echo "config directory  $(eval echo $sysconfdir)"
6324 if test "$mingw32" = "no" ; then
6325 echo "local state directory   $(eval echo $local_statedir)"
6326 echo "Manual directory  $(eval echo $mandir)"
6327 echo "ELF interp prefix $interp_prefix"
6328 else
6329 echo "local state directory   queried at runtime"
6330 echo "Windows SDK       $win_sdk"
6331 fi
6332 echo "Source path       $source_path"
6333 echo "GIT binary        $git"
6334 echo "GIT submodules    $git_submodules"
6335 echo "C compiler        $cc"
6336 echo "Host C compiler   $host_cc"
6337 echo "C++ compiler      $cxx"
6338 echo "Objective-C compiler $objcc"
6339 echo "ARFLAGS           $ARFLAGS"
6340 echo "CFLAGS            $CFLAGS"
6341 echo "QEMU_CFLAGS       $QEMU_CFLAGS"
6342 echo "LDFLAGS           $LDFLAGS"
6343 echo "QEMU_LDFLAGS      $QEMU_LDFLAGS"
6344 echo "make              $make"
6345 echo "install           $install"
6346 echo "python            $python ($python_version)"
6347 echo "slirp support     $slirp $(echo_version $slirp $slirp_version)"
6348 if test "$slirp" != "no" ; then
6349     echo "smbd              $smbd"
6350 fi
6351 echo "module support    $modules"
6352 echo "host CPU          $cpu"
6353 echo "host big endian   $bigendian"
6354 echo "target list       $target_list"
6355 echo "gprof enabled     $gprof"
6356 echo "sparse enabled    $sparse"
6357 echo "strip binaries    $strip_opt"
6358 echo "profiler          $profiler"
6359 echo "static build      $static"
6360 if test "$darwin" = "yes" ; then
6361     echo "Cocoa support     $cocoa"
6362 fi
6363 echo "SDL support       $sdl $(echo_version $sdl $sdlversion)"
6364 echo "SDL image support $sdl_image"
6365 echo "GTK support       $gtk $(echo_version $gtk $gtk_version)"
6366 echo "GTK GL support    $gtk_gl"
6367 echo "VTE support       $vte $(echo_version $vte $vteversion)"
6368 echo "TLS priority      $tls_priority"
6369 echo "GNUTLS support    $gnutls"
6370 echo "libgcrypt         $gcrypt"
6371 echo "nettle            $nettle $(echo_version $nettle $nettle_version)"
6372 echo "libtasn1          $tasn1"
6373 echo "PAM               $auth_pam"
6374 echo "iconv support     $iconv"
6375 echo "curses support    $curses"
6376 echo "virgl support     $virglrenderer $(echo_version $virglrenderer $virgl_version)"
6377 echo "curl support      $curl"
6378 echo "mingw32 support   $mingw32"
6379 echo "Audio drivers     $audio_drv_list"
6380 echo "Block whitelist (rw) $block_drv_rw_whitelist"
6381 echo "Block whitelist (ro) $block_drv_ro_whitelist"
6382 echo "VirtFS support    $virtfs"
6383 echo "Multipath support $mpath"
6384 echo "VNC support       $vnc"
6385 if test "$vnc" = "yes" ; then
6386     echo "VNC SASL support  $vnc_sasl"
6387     echo "VNC JPEG support  $vnc_jpeg"
6388     echo "VNC PNG support   $vnc_png"
6389 fi
6390 if test -n "$sparc_cpu"; then
6391     echo "Target Sparc Arch $sparc_cpu"
6392 fi
6393 echo "xen support       $xen"
6394 if test "$xen" = "yes" ; then
6395   echo "xen ctrl version  $xen_ctrl_version"
6396 fi
6397 echo "brlapi support    $brlapi"
6398 echo "bluez  support    $bluez"
6399 echo "Documentation     $docs"
6400 echo "PIE               $pie"
6401 echo "vde support       $vde"
6402 echo "netmap support    $netmap"
6403 echo "Linux AIO support $linux_aio"
6404 echo "ATTR/XATTR support $attr"
6405 echo "Install blobs     $blobs"
6406 echo "KVM support       $kvm"
6407 echo "HAX support       $hax"
6408 echo "HVF support       $hvf"
6409 echo "WHPX support      $whpx"
6410 echo "TCG support       $tcg"
6411 if test "$tcg" = "yes" ; then
6412     echo "TCG debug enabled $debug_tcg"
6413     echo "TCG interpreter   $tcg_interpreter"
6414 fi
6415 echo "malloc trim support $malloc_trim"
6416 echo "RDMA support      $rdma"
6417 echo "PVRDMA support    $pvrdma"
6418 echo "fdt support       $fdt"
6419 echo "membarrier        $membarrier"
6420 echo "preadv support    $preadv"
6421 echo "fdatasync         $fdatasync"
6422 echo "madvise           $madvise"
6423 echo "posix_madvise     $posix_madvise"
6424 echo "posix_memalign    $posix_memalign"
6425 echo "libcap-ng support $cap_ng"
6426 echo "vhost-net support $vhost_net"
6427 echo "vhost-crypto support $vhost_crypto"
6428 echo "vhost-scsi support $vhost_scsi"
6429 echo "vhost-vsock support $vhost_vsock"
6430 echo "vhost-user support $vhost_user"
6431 echo "Trace backends    $trace_backends"
6432 if have_backend "simple"; then
6433 echo "Trace output file $trace_file-<pid>"
6434 fi
6435 echo "spice support     $spice $(echo_version $spice $spice_protocol_version/$spice_server_version)"
6436 echo "rbd support       $rbd"
6437 echo "xfsctl support    $xfs"
6438 echo "smartcard support $smartcard"
6439 echo "libusb            $libusb"
6440 echo "usb net redir     $usb_redir"
6441 echo "OpenGL support    $opengl"
6442 echo "OpenGL dmabufs    $opengl_dmabuf"
6443 echo "libiscsi support  $libiscsi"
6444 echo "libnfs support    $libnfs"
6445 echo "build guest agent $guest_agent"
6446 echo "QGA VSS support   $guest_agent_with_vss"
6447 echo "QGA w32 disk info $guest_agent_ntddscsi"
6448 echo "QGA MSI support   $guest_agent_msi"
6449 echo "seccomp support   $seccomp"
6450 echo "coroutine backend $coroutine"
6451 echo "coroutine pool    $coroutine_pool"
6452 echo "debug stack usage $debug_stack_usage"
6453 echo "mutex debugging   $debug_mutex"
6454 echo "crypto afalg      $crypto_afalg"
6455 echo "GlusterFS support $glusterfs"
6456 echo "gcov              $gcov_tool"
6457 echo "gcov enabled      $gcov"
6458 echo "TPM support       $tpm"
6459 echo "libssh2 support   $libssh2"
6460 echo "QOM debugging     $qom_cast_debug"
6461 echo "Live block migration $live_block_migration"
6462 echo "lzo support       $lzo"
6463 echo "snappy support    $snappy"
6464 echo "bzip2 support     $bzip2"
6465 echo "lzfse support     $lzfse"
6466 echo "NUMA host support $numa"
6467 echo "libxml2           $libxml2"
6468 echo "tcmalloc support  $tcmalloc"
6469 echo "jemalloc support  $jemalloc"
6470 echo "avx2 optimization $avx2_opt"
6471 echo "replication support $replication"
6472 echo "VxHS block device $vxhs"
6473 echo "bochs support     $bochs"
6474 echo "cloop support     $cloop"
6475 echo "dmg support       $dmg"
6476 echo "qcow v1 support   $qcow1"
6477 echo "vdi support       $vdi"
6478 echo "vvfat support     $vvfat"
6479 echo "qed support       $qed"
6480 echo "parallels support $parallels"
6481 echo "sheepdog support  $sheepdog"
6482 echo "capstone          $capstone"
6483 echo "docker            $docker"
6484 echo "libpmem support   $libpmem"
6485 echo "libudev           $libudev"
6486 echo "default devices   $default_devices"
6487
6488 if test "$supported_cpu" = "no"; then
6489     echo
6490     echo "WARNING: SUPPORT FOR THIS HOST CPU WILL GO AWAY IN FUTURE RELEASES!"
6491     echo
6492     echo "CPU host architecture $cpu support is not currently maintained."
6493     echo "The QEMU project intends to remove support for this host CPU in"
6494     echo "a future release if nobody volunteers to maintain it and to"
6495     echo "provide a build host for our continuous integration setup."
6496     echo "configure has succeeded and you can continue to build, but"
6497     echo "if you care about QEMU on this platform you should contact"
6498     echo "us upstream at qemu-devel@nongnu.org."
6499 fi
6500
6501 if test "$supported_os" = "no"; then
6502     echo
6503     echo "WARNING: SUPPORT FOR THIS HOST OS WILL GO AWAY IN FUTURE RELEASES!"
6504     echo
6505     echo "Host OS $targetos support is not currently maintained."
6506     echo "The QEMU project intends to remove support for this host OS in"
6507     echo "a future release if nobody volunteers to maintain it and to"
6508     echo "provide a build host for our continuous integration setup."
6509     echo "configure has succeeded and you can continue to build, but"
6510     echo "if you care about QEMU on this platform you should contact"
6511     echo "us upstream at qemu-devel@nongnu.org."
6512 fi
6513
6514 config_host_mak="config-host.mak"
6515
6516 echo "# Automatically generated by configure - do not modify" >config-all-disas.mak
6517
6518 echo "# Automatically generated by configure - do not modify" > $config_host_mak
6519 echo >> $config_host_mak
6520
6521 echo all: >> $config_host_mak
6522 echo "prefix=$prefix" >> $config_host_mak
6523 echo "bindir=$bindir" >> $config_host_mak
6524 echo "libdir=$libdir" >> $config_host_mak
6525 echo "libexecdir=$libexecdir" >> $config_host_mak
6526 echo "includedir=$includedir" >> $config_host_mak
6527 echo "mandir=$mandir" >> $config_host_mak
6528 echo "sysconfdir=$sysconfdir" >> $config_host_mak
6529 echo "qemu_confdir=$qemu_confdir" >> $config_host_mak
6530 echo "qemu_datadir=$qemu_datadir" >> $config_host_mak
6531 echo "qemu_firmwarepath=$firmwarepath" >> $config_host_mak
6532 echo "qemu_docdir=$qemu_docdir" >> $config_host_mak
6533 echo "qemu_moddir=$qemu_moddir" >> $config_host_mak
6534 if test "$mingw32" = "no" ; then
6535   echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
6536 fi
6537 echo "qemu_helperdir=$libexecdir" >> $config_host_mak
6538 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
6539 echo "qemu_icondir=$qemu_icondir" >> $config_host_mak
6540 echo "qemu_desktopdir=$qemu_desktopdir" >> $config_host_mak
6541 echo "libs_softmmu=$libs_softmmu" >> $config_host_mak
6542 echo "GIT=$git" >> $config_host_mak
6543 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
6544 echo "GIT_UPDATE=$git_update" >> $config_host_mak
6545
6546 echo "ARCH=$ARCH" >> $config_host_mak
6547
6548 if test "$default_devices" = "yes" ; then
6549   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
6550 else
6551   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
6552 fi
6553 if test "$debug_tcg" = "yes" ; then
6554   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
6555 fi
6556 if test "$strip_opt" = "yes" ; then
6557   echo "STRIP=${strip}" >> $config_host_mak
6558 fi
6559 if test "$bigendian" = "yes" ; then
6560   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
6561 fi
6562 if test "$mingw32" = "yes" ; then
6563   echo "CONFIG_WIN32=y" >> $config_host_mak
6564   rc_version=$(cat $source_path/VERSION)
6565   version_major=${rc_version%%.*}
6566   rc_version=${rc_version#*.}
6567   version_minor=${rc_version%%.*}
6568   rc_version=${rc_version#*.}
6569   version_subminor=${rc_version%%.*}
6570   version_micro=0
6571   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6572   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6573   if test "$guest_agent_with_vss" = "yes" ; then
6574     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
6575     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
6576     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
6577   fi
6578   if test "$guest_agent_ntddscsi" = "yes" ; then
6579     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
6580   fi
6581   if test "$guest_agent_msi" = "yes"; then
6582     echo "QEMU_GA_MSI_ENABLED=yes" >> $config_host_mak
6583     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
6584     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
6585     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
6586     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
6587     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
6588     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
6589   fi
6590 else
6591   echo "CONFIG_POSIX=y" >> $config_host_mak
6592 fi
6593
6594 if test "$linux" = "yes" ; then
6595   echo "CONFIG_LINUX=y" >> $config_host_mak
6596 fi
6597
6598 if test "$darwin" = "yes" ; then
6599   echo "CONFIG_DARWIN=y" >> $config_host_mak
6600 fi
6601
6602 if test "$solaris" = "yes" ; then
6603   echo "CONFIG_SOLARIS=y" >> $config_host_mak
6604 fi
6605 if test "$haiku" = "yes" ; then
6606   echo "CONFIG_HAIKU=y" >> $config_host_mak
6607 fi
6608 if test "$static" = "yes" ; then
6609   echo "CONFIG_STATIC=y" >> $config_host_mak
6610 fi
6611 if test "$profiler" = "yes" ; then
6612   echo "CONFIG_PROFILER=y" >> $config_host_mak
6613 fi
6614 if test "$slirp" != "no"; then
6615   echo "CONFIG_SLIRP=y" >> $config_host_mak
6616   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
6617   echo "SLIRP_CFLAGS=$slirp_cflags" >> $config_host_mak
6618   echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
6619 fi
6620 if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
6621     echo "config-host.h: subdir-slirp" >> $config_host_mak
6622 fi
6623 if test "$vde" = "yes" ; then
6624   echo "CONFIG_VDE=y" >> $config_host_mak
6625   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
6626 fi
6627 if test "$netmap" = "yes" ; then
6628   echo "CONFIG_NETMAP=y" >> $config_host_mak
6629 fi
6630 if test "$l2tpv3" = "yes" ; then
6631   echo "CONFIG_L2TPV3=y" >> $config_host_mak
6632 fi
6633 if test "$cap_ng" = "yes" ; then
6634   echo "CONFIG_LIBCAP=y" >> $config_host_mak
6635 fi
6636 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
6637 for drv in $audio_drv_list; do
6638     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
6639     case "$drv" in
6640         alsa | oss | pa | sdl)
6641             echo "$def=m" >> $config_host_mak ;;
6642         *)
6643             echo "$def=y" >> $config_host_mak ;;
6644     esac
6645 done
6646 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6647 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6648 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6649 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6650 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6651 if test "$audio_pt_int" = "yes" ; then
6652   echo "CONFIG_AUDIO_PT_INT=y" >> $config_host_mak
6653 fi
6654 if test "$audio_win_int" = "yes" ; then
6655   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6656 fi
6657 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6658 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6659 if test "$vnc" = "yes" ; then
6660   echo "CONFIG_VNC=y" >> $config_host_mak
6661 fi
6662 if test "$vnc_sasl" = "yes" ; then
6663   echo "CONFIG_VNC_SASL=y" >> $config_host_mak
6664 fi
6665 if test "$vnc_jpeg" = "yes" ; then
6666   echo "CONFIG_VNC_JPEG=y" >> $config_host_mak
6667 fi
6668 if test "$vnc_png" = "yes" ; then
6669   echo "CONFIG_VNC_PNG=y" >> $config_host_mak
6670 fi
6671 if test "$xkbcommon" = "yes" ; then
6672   echo "XKBCOMMON_CFLAGS=$xkbcommon_cflags" >> $config_host_mak
6673   echo "XKBCOMMON_LIBS=$xkbcommon_libs" >> $config_host_mak
6674 fi
6675 if test "$xfs" = "yes" ; then
6676   echo "CONFIG_XFS=y" >> $config_host_mak
6677 fi
6678 qemu_version=$(head $source_path/VERSION)
6679 echo "VERSION=$qemu_version" >>$config_host_mak
6680 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6681 echo "SRC_PATH=$source_path" >> $config_host_mak
6682 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6683 if [ "$docs" = "yes" ] ; then
6684   echo "BUILD_DOCS=yes" >> $config_host_mak
6685 fi
6686 if test "$modules" = "yes"; then
6687   # $shacmd can generate a hash started with digit, which the compiler doesn't
6688   # like as an symbol. So prefix it with an underscore
6689   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6690   echo "CONFIG_MODULES=y" >> $config_host_mak
6691 fi
6692 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6693   echo "CONFIG_X11=y" >> $config_host_mak
6694   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6695   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6696 fi
6697 if test "$sdl" = "yes" ; then
6698   echo "CONFIG_SDL=m" >> $config_host_mak
6699   echo "SDL_CFLAGS=$sdl_cflags" >> $config_host_mak
6700   echo "SDL_LIBS=$sdl_libs" >> $config_host_mak
6701   if test "$sdl_image" = "yes" ; then
6702       echo "CONFIG_SDL_IMAGE=y" >> $config_host_mak
6703   fi
6704 fi
6705 if test "$cocoa" = "yes" ; then
6706   echo "CONFIG_COCOA=y" >> $config_host_mak
6707 fi
6708 if test "$iconv" = "yes" ; then
6709   echo "CONFIG_ICONV=y" >> $config_host_mak
6710   echo "ICONV_CFLAGS=$iconv_cflags" >> $config_host_mak
6711   echo "ICONV_LIBS=$iconv_lib" >> $config_host_mak
6712 fi
6713 if test "$curses" = "yes" ; then
6714   echo "CONFIG_CURSES=m" >> $config_host_mak
6715   echo "CURSES_CFLAGS=$curses_inc" >> $config_host_mak
6716   echo "CURSES_LIBS=$curses_lib" >> $config_host_mak
6717 fi
6718 if test "$pipe2" = "yes" ; then
6719   echo "CONFIG_PIPE2=y" >> $config_host_mak
6720 fi
6721 if test "$accept4" = "yes" ; then
6722   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6723 fi
6724 if test "$splice" = "yes" ; then
6725   echo "CONFIG_SPLICE=y" >> $config_host_mak
6726 fi
6727 if test "$eventfd" = "yes" ; then
6728   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6729 fi
6730 if test "$memfd" = "yes" ; then
6731   echo "CONFIG_MEMFD=y" >> $config_host_mak
6732 fi
6733 if test "$have_usbfs" = "yes" ; then
6734   echo "CONFIG_USBFS=y" >> $config_host_mak
6735 fi
6736 if test "$fallocate" = "yes" ; then
6737   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6738 fi
6739 if test "$fallocate_punch_hole" = "yes" ; then
6740   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6741 fi
6742 if test "$fallocate_zero_range" = "yes" ; then
6743   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6744 fi
6745 if test "$posix_fallocate" = "yes" ; then
6746   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6747 fi
6748 if test "$sync_file_range" = "yes" ; then
6749   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6750 fi
6751 if test "$fiemap" = "yes" ; then
6752   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6753 fi
6754 if test "$dup3" = "yes" ; then
6755   echo "CONFIG_DUP3=y" >> $config_host_mak
6756 fi
6757 if test "$ppoll" = "yes" ; then
6758   echo "CONFIG_PPOLL=y" >> $config_host_mak
6759 fi
6760 if test "$prctl_pr_set_timerslack" = "yes" ; then
6761   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6762 fi
6763 if test "$epoll" = "yes" ; then
6764   echo "CONFIG_EPOLL=y" >> $config_host_mak
6765 fi
6766 if test "$epoll_create1" = "yes" ; then
6767   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6768 fi
6769 if test "$sendfile" = "yes" ; then
6770   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6771 fi
6772 if test "$timerfd" = "yes" ; then
6773   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6774 fi
6775 if test "$setns" = "yes" ; then
6776   echo "CONFIG_SETNS=y" >> $config_host_mak
6777 fi
6778 if test "$clock_adjtime" = "yes" ; then
6779   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6780 fi
6781 if test "$syncfs" = "yes" ; then
6782   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6783 fi
6784 if test "$inotify" = "yes" ; then
6785   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6786 fi
6787 if test "$inotify1" = "yes" ; then
6788   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6789 fi
6790 if test "$sem_timedwait" = "yes" ; then
6791   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6792 fi
6793 if test "$strchrnul" = "yes" ; then
6794   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6795 fi
6796 if test "$byteswap_h" = "yes" ; then
6797   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6798 fi
6799 if test "$bswap_h" = "yes" ; then
6800   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6801 fi
6802 if test "$curl" = "yes" ; then
6803   echo "CONFIG_CURL=m" >> $config_host_mak
6804   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6805   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6806 fi
6807 if test "$brlapi" = "yes" ; then
6808   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6809   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6810 fi
6811 if test "$bluez" = "yes" ; then
6812   echo "CONFIG_BLUEZ=y" >> $config_host_mak
6813   echo "BLUEZ_CFLAGS=$bluez_cflags" >> $config_host_mak
6814 fi
6815 if test "$gtk" = "yes" ; then
6816   echo "CONFIG_GTK=m" >> $config_host_mak
6817   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6818   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6819   if test "$gtk_gl" = "yes" ; then
6820     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6821   fi
6822 fi
6823 if test "$gio" = "yes" ; then
6824     echo "CONFIG_GIO=y" >> $config_host_mak
6825     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6826     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6827 fi
6828 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6829 if test "$gnutls" = "yes" ; then
6830   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6831 fi
6832 if test "$gcrypt" = "yes" ; then
6833   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6834   if test "$gcrypt_hmac" = "yes" ; then
6835     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6836   fi
6837 fi
6838 if test "$nettle" = "yes" ; then
6839   echo "CONFIG_NETTLE=y" >> $config_host_mak
6840   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6841 fi
6842 if test "$tasn1" = "yes" ; then
6843   echo "CONFIG_TASN1=y" >> $config_host_mak
6844 fi
6845 if test "$auth_pam" = "yes" ; then
6846     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6847 fi
6848 if test "$have_ifaddrs_h" = "yes" ; then
6849     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6850 fi
6851 if test "$have_broken_size_max" = "yes" ; then
6852     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6853 fi
6854
6855 # Work around a system header bug with some kernel/XFS header
6856 # versions where they both try to define 'struct fsxattr':
6857 # xfs headers will not try to redefine structs from linux headers
6858 # if this macro is set.
6859 if test "$have_fsxattr" = "yes" ; then
6860     echo "HAVE_FSXATTR=y" >> $config_host_mak
6861 fi
6862 if test "$have_copy_file_range" = "yes" ; then
6863     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6864 fi
6865 if test "$vte" = "yes" ; then
6866   echo "CONFIG_VTE=y" >> $config_host_mak
6867   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6868   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6869 fi
6870 if test "$virglrenderer" = "yes" ; then
6871   echo "CONFIG_VIRGL=y" >> $config_host_mak
6872   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6873   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6874 fi
6875 if test "$xen" = "yes" ; then
6876   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6877   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6878 fi
6879 if test "$linux_aio" = "yes" ; then
6880   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6881 fi
6882 if test "$attr" = "yes" ; then
6883   echo "CONFIG_ATTR=y" >> $config_host_mak
6884 fi
6885 if test "$libattr" = "yes" ; then
6886   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6887 fi
6888 if test "$virtfs" = "yes" ; then
6889   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6890 fi
6891 if test "$mpath" = "yes" ; then
6892   echo "CONFIG_MPATH=y" >> $config_host_mak
6893   if test "$mpathpersist_new_api" = "yes"; then
6894     echo "CONFIG_MPATH_NEW_API=y" >> $config_host_mak
6895   fi
6896 fi
6897 if test "$vhost_scsi" = "yes" ; then
6898   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6899 fi
6900 if test "$vhost_net" = "yes" ; then
6901   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6902 fi
6903 if test "$vhost_net_user" = "yes" ; then
6904   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6905 fi
6906 if test "$vhost_crypto" = "yes" ; then
6907   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6908 fi
6909 if test "$vhost_vsock" = "yes" ; then
6910   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6911 fi
6912 if test "$vhost_kernel" = "yes" ; then
6913   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6914 fi
6915 if test "$vhost_user" = "yes" ; then
6916   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6917 fi
6918 if test "$blobs" = "yes" ; then
6919   echo "INSTALL_BLOBS=yes" >> $config_host_mak
6920 fi
6921 if test "$iovec" = "yes" ; then
6922   echo "CONFIG_IOVEC=y" >> $config_host_mak
6923 fi
6924 if test "$preadv" = "yes" ; then
6925   echo "CONFIG_PREADV=y" >> $config_host_mak
6926 fi
6927 if test "$fdt" != "no" ; then
6928   echo "CONFIG_FDT=y" >> $config_host_mak
6929 fi
6930 if test "$membarrier" = "yes" ; then
6931   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6932 fi
6933 if test "$signalfd" = "yes" ; then
6934   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6935 fi
6936 if test "$optreset" = "yes" ; then
6937   echo "HAVE_OPTRESET=y" >> $config_host_mak
6938 fi
6939 if test "$tcg" = "yes"; then
6940   echo "CONFIG_TCG=y" >> $config_host_mak
6941   if test "$tcg_interpreter" = "yes" ; then
6942     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6943   fi
6944 fi
6945 if test "$fdatasync" = "yes" ; then
6946   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6947 fi
6948 if test "$madvise" = "yes" ; then
6949   echo "CONFIG_MADVISE=y" >> $config_host_mak
6950 fi
6951 if test "$posix_madvise" = "yes" ; then
6952   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6953 fi
6954 if test "$posix_memalign" = "yes" ; then
6955   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6956 fi
6957
6958 if test "$spice" = "yes" ; then
6959   echo "CONFIG_SPICE=y" >> $config_host_mak
6960 fi
6961
6962 if test "$smartcard" = "yes" ; then
6963   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6964   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6965   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6966 fi
6967
6968 if test "$libusb" = "yes" ; then
6969   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6970   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6971   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6972 fi
6973
6974 if test "$usb_redir" = "yes" ; then
6975   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6976   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6977   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6978 fi
6979
6980 if test "$opengl" = "yes" ; then
6981   echo "CONFIG_OPENGL=y" >> $config_host_mak
6982   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6983   if test "$opengl_dmabuf" = "yes" ; then
6984     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6985   fi
6986 fi
6987
6988 if test "$gbm" = "yes" ; then
6989     echo "CONFIG_GBM=y" >> $config_host_mak
6990     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6991     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6992 fi
6993
6994
6995 if test "$malloc_trim" = "yes" ; then
6996   echo "CONFIG_MALLOC_TRIM=y" >> $config_host_mak
6997 fi
6998
6999 if test "$avx2_opt" = "yes" ; then
7000   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
7001 fi
7002
7003 if test "$lzo" = "yes" ; then
7004   echo "CONFIG_LZO=y" >> $config_host_mak
7005 fi
7006
7007 if test "$snappy" = "yes" ; then
7008   echo "CONFIG_SNAPPY=y" >> $config_host_mak
7009 fi
7010
7011 if test "$bzip2" = "yes" ; then
7012   echo "CONFIG_BZIP2=y" >> $config_host_mak
7013   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
7014 fi
7015
7016 if test "$lzfse" = "yes" ; then
7017   echo "CONFIG_LZFSE=y" >> $config_host_mak
7018   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
7019 fi
7020
7021 if test "$libiscsi" = "yes" ; then
7022   echo "CONFIG_LIBISCSI=m" >> $config_host_mak
7023   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
7024   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
7025 fi
7026
7027 if test "$libnfs" = "yes" ; then
7028   echo "CONFIG_LIBNFS=m" >> $config_host_mak
7029   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
7030 fi
7031
7032 if test "$seccomp" = "yes"; then
7033   echo "CONFIG_SECCOMP=y" >> $config_host_mak
7034   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
7035   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
7036 fi
7037
7038 # XXX: suppress that
7039 if [ "$bsd" = "yes" ] ; then
7040   echo "CONFIG_BSD=y" >> $config_host_mak
7041 fi
7042
7043 if test "$localtime_r" = "yes" ; then
7044   echo "CONFIG_LOCALTIME_R=y" >> $config_host_mak
7045 fi
7046 if test "$qom_cast_debug" = "yes" ; then
7047   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
7048 fi
7049 if test "$rbd" = "yes" ; then
7050   echo "CONFIG_RBD=m" >> $config_host_mak
7051   echo "RBD_CFLAGS=$rbd_cflags" >> $config_host_mak
7052   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
7053 fi
7054
7055 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
7056 if test "$coroutine_pool" = "yes" ; then
7057   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
7058 else
7059   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
7060 fi
7061
7062 if test "$debug_stack_usage" = "yes" ; then
7063   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
7064 fi
7065
7066 if test "$crypto_afalg" = "yes" ; then
7067   echo "CONFIG_AF_ALG=y" >> $config_host_mak
7068 fi
7069
7070 if test "$open_by_handle_at" = "yes" ; then
7071   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
7072 fi
7073
7074 if test "$linux_magic_h" = "yes" ; then
7075   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
7076 fi
7077
7078 if test "$pragma_diagnostic_available" = "yes" ; then
7079   echo "CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE=y" >> $config_host_mak
7080 fi
7081
7082 if test "$valgrind_h" = "yes" ; then
7083   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
7084 fi
7085
7086 if test "$have_asan_iface_fiber" = "yes" ; then
7087     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
7088 fi
7089
7090 if test "$has_environ" = "yes" ; then
7091   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
7092 fi
7093
7094 if test "$cpuid_h" = "yes" ; then
7095   echo "CONFIG_CPUID_H=y" >> $config_host_mak
7096 fi
7097
7098 if test "$int128" = "yes" ; then
7099   echo "CONFIG_INT128=y" >> $config_host_mak
7100 fi
7101
7102 if test "$atomic128" = "yes" ; then
7103   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
7104 fi
7105
7106 if test "$cmpxchg128" = "yes" ; then
7107   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
7108 fi
7109
7110 if test "$atomic64" = "yes" ; then
7111   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
7112 fi
7113
7114 if test "$vector16" = "yes" ; then
7115   echo "CONFIG_VECTOR16=y" >> $config_host_mak
7116 fi
7117
7118 if test "$getauxval" = "yes" ; then
7119   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
7120 fi
7121
7122 if test "$glusterfs" = "yes" ; then
7123   echo "CONFIG_GLUSTERFS=m" >> $config_host_mak
7124   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
7125   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
7126 fi
7127
7128 if test "$glusterfs_xlator_opt" = "yes" ; then
7129   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
7130 fi
7131
7132 if test "$glusterfs_discard" = "yes" ; then
7133   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
7134 fi
7135
7136 if test "$glusterfs_fallocate" = "yes" ; then
7137   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
7138 fi
7139
7140 if test "$glusterfs_zerofill" = "yes" ; then
7141   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
7142 fi
7143
7144 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
7145   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
7146 fi
7147
7148 if test "$glusterfs_iocb_has_stat" = "yes" ; then
7149   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
7150 fi
7151
7152 if test "$libssh2" = "yes" ; then
7153   echo "CONFIG_LIBSSH2=m" >> $config_host_mak
7154   echo "LIBSSH2_CFLAGS=$libssh2_cflags" >> $config_host_mak
7155   echo "LIBSSH2_LIBS=$libssh2_libs" >> $config_host_mak
7156 fi
7157
7158 if test "$live_block_migration" = "yes" ; then
7159   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
7160 fi
7161
7162 if test "$tpm" = "yes"; then
7163   echo 'CONFIG_TPM=$(CONFIG_SOFTMMU)' >> $config_host_mak
7164 fi
7165
7166 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
7167 if have_backend "nop"; then
7168   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
7169 fi
7170 if have_backend "simple"; then
7171   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
7172   # Set the appropriate trace file.
7173   trace_file="\"$trace_file-\" FMT_pid"
7174 fi
7175 if have_backend "log"; then
7176   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
7177 fi
7178 if have_backend "ust"; then
7179   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
7180 fi
7181 if have_backend "dtrace"; then
7182   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
7183   if test "$trace_backend_stap" = "yes" ; then
7184     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
7185   fi
7186 fi
7187 if have_backend "ftrace"; then
7188   if test "$linux" = "yes" ; then
7189     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
7190   else
7191     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
7192   fi
7193 fi
7194 if have_backend "syslog"; then
7195   if test "$posix_syslog" = "yes" ; then
7196     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
7197   else
7198     feature_not_found "syslog(trace backend)" "syslog not available"
7199   fi
7200 fi
7201 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
7202
7203 if test "$rdma" = "yes" ; then
7204   echo "CONFIG_RDMA=y" >> $config_host_mak
7205   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
7206 fi
7207
7208 if test "$pvrdma" = "yes" ; then
7209   echo "CONFIG_PVRDMA=y" >> $config_host_mak
7210 fi
7211
7212 if test "$have_rtnetlink" = "yes" ; then
7213   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
7214 fi
7215
7216 if test "$libxml2" = "yes" ; then
7217   echo "CONFIG_LIBXML2=y" >> $config_host_mak
7218   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
7219   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
7220 fi
7221
7222 if test "$replication" = "yes" ; then
7223   echo "CONFIG_REPLICATION=y" >> $config_host_mak
7224 fi
7225
7226 if test "$have_af_vsock" = "yes" ; then
7227   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
7228 fi
7229
7230 if test "$have_sysmacros" = "yes" ; then
7231   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
7232 fi
7233
7234 if test "$have_static_assert" = "yes" ; then
7235   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
7236 fi
7237
7238 if test "$have_utmpx" = "yes" ; then
7239   echo "HAVE_UTMPX=y" >> $config_host_mak
7240 fi
7241 if test "$have_getrandom" = "yes" ; then
7242   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
7243 fi
7244 if test "$ivshmem" = "yes" ; then
7245   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
7246 fi
7247 if test "$capstone" != "no" ; then
7248   echo "CONFIG_CAPSTONE=y" >> $config_host_mak
7249 fi
7250 if test "$debug_mutex" = "yes" ; then
7251   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
7252 fi
7253
7254 # Hold two types of flag:
7255 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
7256 #                                     a thread we have a handle to
7257 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
7258 #                                     platform
7259 if test "$pthread_setname_np_w_tid" = "yes" ; then
7260   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7261   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
7262 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
7263   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7264   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
7265 fi
7266
7267 if test "$vxhs" = "yes" ; then
7268   echo "CONFIG_VXHS=y" >> $config_host_mak
7269   echo "VXHS_LIBS=$vxhs_libs" >> $config_host_mak
7270 fi
7271
7272 if test "$libpmem" = "yes" ; then
7273   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
7274 fi
7275
7276 if test "$bochs" = "yes" ; then
7277   echo "CONFIG_BOCHS=y" >> $config_host_mak
7278 fi
7279 if test "$cloop" = "yes" ; then
7280   echo "CONFIG_CLOOP=y" >> $config_host_mak
7281 fi
7282 if test "$dmg" = "yes" ; then
7283   echo "CONFIG_DMG=y" >> $config_host_mak
7284 fi
7285 if test "$qcow1" = "yes" ; then
7286   echo "CONFIG_QCOW1=y" >> $config_host_mak
7287 fi
7288 if test "$vdi" = "yes" ; then
7289   echo "CONFIG_VDI=y" >> $config_host_mak
7290 fi
7291 if test "$vvfat" = "yes" ; then
7292   echo "CONFIG_VVFAT=y" >> $config_host_mak
7293 fi
7294 if test "$qed" = "yes" ; then
7295   echo "CONFIG_QED=y" >> $config_host_mak
7296 fi
7297 if test "$parallels" = "yes" ; then
7298   echo "CONFIG_PARALLELS=y" >> $config_host_mak
7299 fi
7300 if test "$sheepdog" = "yes" ; then
7301   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
7302 fi
7303
7304 if test "$tcg_interpreter" = "yes"; then
7305   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/tci $QEMU_INCLUDES"
7306 elif test "$ARCH" = "sparc64" ; then
7307   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/sparc $QEMU_INCLUDES"
7308 elif test "$ARCH" = "s390x" ; then
7309   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/s390 $QEMU_INCLUDES"
7310 elif test "$ARCH" = "x86_64" || test "$ARCH" = "x32" ; then
7311   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/i386 $QEMU_INCLUDES"
7312 elif test "$ARCH" = "ppc64" ; then
7313   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/ppc $QEMU_INCLUDES"
7314 elif test "$ARCH" = "riscv32" || test "$ARCH" = "riscv64" ; then
7315   QEMU_INCLUDES="-I\$(SRC_PATH)/tcg/riscv $QEMU_INCLUDES"
7316 else
7317   QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg/\$(ARCH) $QEMU_INCLUDES"
7318 fi
7319 QEMU_INCLUDES="-iquote \$(SRC_PATH)/tcg $QEMU_INCLUDES"
7320
7321 echo "TOOLS=$tools" >> $config_host_mak
7322 echo "ROMS=$roms" >> $config_host_mak
7323 echo "MAKE=$make" >> $config_host_mak
7324 echo "INSTALL=$install" >> $config_host_mak
7325 echo "INSTALL_DIR=$install -d -m 0755" >> $config_host_mak
7326 echo "INSTALL_DATA=$install -c -m 0644" >> $config_host_mak
7327 echo "INSTALL_PROG=$install -c -m 0755" >> $config_host_mak
7328 echo "INSTALL_LIB=$install -c -m 0644" >> $config_host_mak
7329 echo "PYTHON=$python" >> $config_host_mak
7330 echo "PYTHON_VERSION=$python_version" >> $config_host_mak
7331 echo "CC=$cc" >> $config_host_mak
7332 if $iasl -h > /dev/null 2>&1; then
7333   echo "IASL=$iasl" >> $config_host_mak
7334 fi
7335 echo "HOST_CC=$host_cc" >> $config_host_mak
7336 echo "CXX=$cxx" >> $config_host_mak
7337 echo "OBJCC=$objcc" >> $config_host_mak
7338 echo "AR=$ar" >> $config_host_mak
7339 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
7340 echo "AS=$as" >> $config_host_mak
7341 echo "CCAS=$ccas" >> $config_host_mak
7342 echo "CPP=$cpp" >> $config_host_mak
7343 echo "OBJCOPY=$objcopy" >> $config_host_mak
7344 echo "LD=$ld" >> $config_host_mak
7345 echo "RANLIB=$ranlib" >> $config_host_mak
7346 echo "NM=$nm" >> $config_host_mak
7347 echo "WINDRES=$windres" >> $config_host_mak
7348 echo "CFLAGS=$CFLAGS" >> $config_host_mak
7349 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
7350 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
7351 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
7352 echo "QEMU_INCLUDES=$QEMU_INCLUDES" >> $config_host_mak
7353 if test "$sparse" = "yes" ; then
7354   echo "CC           := REAL_CC=\"\$(CC)\" cgcc"       >> $config_host_mak
7355   echo "CPP          := REAL_CC=\"\$(CPP)\" cgcc"      >> $config_host_mak
7356   echo "CXX          := REAL_CC=\"\$(CXX)\" cgcc"      >> $config_host_mak
7357   echo "HOST_CC      := REAL_CC=\"\$(HOST_CC)\" cgcc"  >> $config_host_mak
7358   echo "QEMU_CFLAGS  += -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak
7359 fi
7360 if test "$cross_prefix" != ""; then
7361   echo "AUTOCONF_HOST := --host=${cross_prefix%-}"     >> $config_host_mak
7362 else
7363   echo "AUTOCONF_HOST := "                             >> $config_host_mak
7364 fi
7365 echo "LDFLAGS=$LDFLAGS" >> $config_host_mak
7366 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
7367 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
7368 echo "LD_REL_FLAGS=$LD_REL_FLAGS" >> $config_host_mak
7369 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
7370 echo "LIBS+=$LIBS" >> $config_host_mak
7371 echo "LIBS_TOOLS+=$libs_tools" >> $config_host_mak
7372 echo "PTHREAD_LIB=$PTHREAD_LIB" >> $config_host_mak
7373 echo "EXESUF=$EXESUF" >> $config_host_mak
7374 echo "DSOSUF=$DSOSUF" >> $config_host_mak
7375 echo "LDFLAGS_SHARED=$LDFLAGS_SHARED" >> $config_host_mak
7376 echo "LIBS_QGA+=$libs_qga" >> $config_host_mak
7377 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
7378 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
7379 echo "POD2MAN=$POD2MAN" >> $config_host_mak
7380 if test "$gcov" = "yes" ; then
7381   echo "CONFIG_GCOV=y" >> $config_host_mak
7382   echo "GCOV=$gcov_tool" >> $config_host_mak
7383 fi
7384
7385 if test "$docker" != "no"; then
7386     echo "HAVE_USER_DOCKER=y" >> $config_host_mak
7387 fi
7388
7389 if test "$libudev" != "no"; then
7390     echo "CONFIG_LIBUDEV=y" >> $config_host_mak
7391     echo "LIBUDEV_LIBS=$libudev_libs" >> $config_host_mak
7392 fi
7393
7394 # use included Linux headers
7395 if test "$linux" = "yes" ; then
7396   mkdir -p linux-headers
7397   case "$cpu" in
7398   i386|x86_64|x32)
7399     linux_arch=x86
7400     ;;
7401   ppc|ppc64|ppc64le)
7402     linux_arch=powerpc
7403     ;;
7404   s390x)
7405     linux_arch=s390
7406     ;;
7407   aarch64)
7408     linux_arch=arm64
7409     ;;
7410   mips64)
7411     linux_arch=mips
7412     ;;
7413   *)
7414     # For most CPUs the kernel architecture name and QEMU CPU name match.
7415     linux_arch="$cpu"
7416     ;;
7417   esac
7418     # For non-KVM architectures we will not have asm headers
7419     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
7420       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
7421     fi
7422 fi
7423
7424 for target in $target_list; do
7425 target_dir="$target"
7426 config_target_mak=$target_dir/config-target.mak
7427 target_name=$(echo $target | cut -d '-' -f 1)
7428 target_bigendian="no"
7429
7430 case "$target_name" in
7431   armeb|aarch64_be|hppa|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or1k|ppc|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
7432   target_bigendian=yes
7433   ;;
7434 esac
7435 target_softmmu="no"
7436 target_user_only="no"
7437 target_linux_user="no"
7438 target_bsd_user="no"
7439 case "$target" in
7440   ${target_name}-softmmu)
7441     target_softmmu="yes"
7442     ;;
7443   ${target_name}-linux-user)
7444     target_user_only="yes"
7445     target_linux_user="yes"
7446     ;;
7447   ${target_name}-bsd-user)
7448     target_user_only="yes"
7449     target_bsd_user="yes"
7450     ;;
7451   *)
7452     error_exit "Target '$target' not recognised"
7453     exit 1
7454     ;;
7455 esac
7456
7457 target_compiler=""
7458 target_compiler_static=""
7459 target_compiler_cflags=""
7460
7461 mkdir -p $target_dir
7462 echo "# Automatically generated by configure - do not modify" > $config_target_mak
7463
7464 bflt="no"
7465 mttcg="no"
7466 interp_prefix1=$(echo "$interp_prefix" | sed "s/%M/$target_name/g")
7467 gdb_xml_files=""
7468
7469 TARGET_ARCH="$target_name"
7470 TARGET_BASE_ARCH=""
7471 TARGET_ABI_DIR=""
7472
7473 case "$target_name" in
7474   i386)
7475     mttcg="yes"
7476         gdb_xml_files="i386-32bit.xml"
7477     target_compiler=$cross_cc_i386
7478     target_compiler_cflags=$cross_cc_ccflags_i386
7479   ;;
7480   x86_64)
7481     TARGET_BASE_ARCH=i386
7482     mttcg="yes"
7483         gdb_xml_files="i386-64bit.xml"
7484     target_compiler=$cross_cc_x86_64
7485   ;;
7486   alpha)
7487     mttcg="yes"
7488     target_compiler=$cross_cc_alpha
7489   ;;
7490   arm|armeb)
7491     TARGET_ARCH=arm
7492     bflt="yes"
7493     mttcg="yes"
7494     gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
7495     target_compiler=$cross_cc_arm
7496     eval "target_compiler_cflags=\$cross_cc_cflags_${target_name}"
7497   ;;
7498   aarch64|aarch64_be)
7499     TARGET_ARCH=aarch64
7500     TARGET_BASE_ARCH=arm
7501     bflt="yes"
7502     mttcg="yes"
7503     gdb_xml_files="aarch64-core.xml aarch64-fpu.xml arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml"
7504     target_compiler=$cross_cc_aarch64
7505     eval "target_compiler_cflags=\$cross_cc_cflags_${target_name}"
7506   ;;
7507   cris)
7508     target_compiler=$cross_cc_cris
7509   ;;
7510   hppa)
7511     mttcg="yes"
7512     target_compiler=$cross_cc_hppa
7513   ;;
7514   lm32)
7515     target_compiler=$cross_cc_lm32
7516   ;;
7517   m68k)
7518     bflt="yes"
7519     gdb_xml_files="cf-core.xml cf-fp.xml m68k-fp.xml"
7520     target_compiler=$cross_cc_m68k
7521   ;;
7522   microblaze|microblazeel)
7523     TARGET_ARCH=microblaze
7524     bflt="yes"
7525     echo "TARGET_ABI32=y" >> $config_target_mak
7526     target_compiler=$cross_cc_microblaze
7527   ;;
7528   mips|mipsel)
7529     mttcg="yes"
7530     TARGET_ARCH=mips
7531     target_compiler=$cross_cc_mips
7532     echo "TARGET_ABI_MIPSO32=y" >> $config_target_mak
7533   ;;
7534   mipsn32|mipsn32el)
7535     mttcg="yes"
7536     TARGET_ARCH=mips64
7537     TARGET_BASE_ARCH=mips
7538     target_compiler=$cross_cc_mipsn32
7539     echo "TARGET_ABI_MIPSN32=y" >> $config_target_mak
7540     echo "TARGET_ABI32=y" >> $config_target_mak
7541   ;;
7542   mips64|mips64el)
7543     mttcg="yes"
7544     TARGET_ARCH=mips64
7545     TARGET_BASE_ARCH=mips
7546     target_compiler=$cross_cc_mips64
7547     echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
7548   ;;
7549   moxie)
7550     target_compiler=$cross_cc_moxie
7551   ;;
7552   nios2)
7553     target_compiler=$cross_cc_nios2
7554   ;;
7555   or1k)
7556     target_compiler=$cross_cc_or1k
7557     TARGET_ARCH=openrisc
7558     TARGET_BASE_ARCH=openrisc
7559   ;;
7560   ppc)
7561     gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
7562     target_compiler=$cross_cc_ppc
7563     target_compiler_cflags="$cross_cc_cflags_ppc"
7564   ;;
7565   ppc64)
7566     TARGET_BASE_ARCH=ppc
7567     TARGET_ABI_DIR=ppc
7568     mttcg=yes
7569     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7570     target_compiler=$cross_cc_ppc64
7571     target_compiler_cflags="$cross_cc_cflags_ppc64"
7572   ;;
7573   ppc64le)
7574     TARGET_ARCH=ppc64
7575     TARGET_BASE_ARCH=ppc
7576     TARGET_ABI_DIR=ppc
7577     mttcg=yes
7578     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7579     target_compiler=$cross_cc_ppc64le
7580   ;;
7581   ppc64abi32)
7582     TARGET_ARCH=ppc64
7583     TARGET_BASE_ARCH=ppc
7584     TARGET_ABI_DIR=ppc
7585     echo "TARGET_ABI32=y" >> $config_target_mak
7586     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7587     target_compiler=$cross_cc_ppc64abi32
7588   ;;
7589   riscv32)
7590     TARGET_BASE_ARCH=riscv
7591     TARGET_ABI_DIR=riscv
7592     mttcg=yes
7593     gdb_xml_files="riscv-32bit-cpu.xml riscv-32bit-fpu.xml riscv-32bit-csr.xml"
7594     target_compiler=$cross_cc_riscv32
7595   ;;
7596   riscv64)
7597     TARGET_BASE_ARCH=riscv
7598     TARGET_ABI_DIR=riscv
7599     mttcg=yes
7600     gdb_xml_files="riscv-64bit-cpu.xml riscv-64bit-fpu.xml riscv-64bit-csr.xml"
7601     target_compiler=$cross_cc_riscv64
7602   ;;
7603   sh4|sh4eb)
7604     TARGET_ARCH=sh4
7605     bflt="yes"
7606     target_compiler=$cross_cc_sh4
7607   ;;
7608   sparc)
7609     target_compiler=$cross_cc_sparc
7610   ;;
7611   sparc64)
7612     TARGET_BASE_ARCH=sparc
7613     target_compiler=$cross_cc_sparc64
7614   ;;
7615   sparc32plus)
7616     TARGET_ARCH=sparc64
7617     TARGET_BASE_ARCH=sparc
7618     TARGET_ABI_DIR=sparc
7619     target_compiler=$cross_cc_sparc32plus
7620     echo "TARGET_ABI32=y" >> $config_target_mak
7621   ;;
7622   s390x)
7623     mttcg=yes
7624     gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml"
7625     target_compiler=$cross_cc_s390x
7626   ;;
7627   tilegx)
7628     target_compiler=$cross_cc_tilegx
7629   ;;
7630   tricore)
7631     target_compiler=$cross_cc_tricore
7632   ;;
7633   unicore32)
7634     target_compiler=$cross_cc_unicore32
7635   ;;
7636   xtensa|xtensaeb)
7637     TARGET_ARCH=xtensa
7638     bflt="yes"
7639     mttcg="yes"
7640     target_compiler=$cross_cc_xtensa
7641   ;;
7642   *)
7643     error_exit "Unsupported target CPU"
7644   ;;
7645 esac
7646 # TARGET_BASE_ARCH needs to be defined after TARGET_ARCH
7647 if [ "$TARGET_BASE_ARCH" = "" ]; then
7648   TARGET_BASE_ARCH=$TARGET_ARCH
7649 fi
7650
7651 # Do we have a cross compiler for this target?
7652 if has $target_compiler; then
7653
7654     write_c_skeleton
7655
7656     if ! do_compiler "$target_compiler" $target_compiler_cflags -o $TMPE $TMPC -static ; then
7657         # For host systems we might get away with building without -static
7658         if ! do_compiler "$target_compiler" $target_compiler_cflags -o $TMPE $TMPC ; then
7659             target_compiler=""
7660         else
7661             enabled_cross_compilers="${enabled_cross_compilers} '${target_compiler}'"
7662             target_compiler_static="n"
7663         fi
7664     else
7665         enabled_cross_compilers="${enabled_cross_compilers} '${target_compiler}'"
7666         target_compiler_static="y"
7667     fi
7668 else
7669     target_compiler=""
7670 fi
7671
7672 symlink "$source_path/Makefile.target" "$target_dir/Makefile"
7673
7674 upper() {
7675     echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
7676 }
7677
7678 target_arch_name="$(upper $TARGET_ARCH)"
7679 echo "TARGET_$target_arch_name=y" >> $config_target_mak
7680 echo "TARGET_NAME=$target_name" >> $config_target_mak
7681 echo "TARGET_BASE_ARCH=$TARGET_BASE_ARCH" >> $config_target_mak
7682 if [ "$TARGET_ABI_DIR" = "" ]; then
7683   TARGET_ABI_DIR=$TARGET_ARCH
7684 fi
7685 echo "TARGET_ABI_DIR=$TARGET_ABI_DIR" >> $config_target_mak
7686 if [ "$HOST_VARIANT_DIR" != "" ]; then
7687     echo "HOST_VARIANT_DIR=$HOST_VARIANT_DIR" >> $config_target_mak
7688 fi
7689
7690 if supported_xen_target $target; then
7691     echo "CONFIG_XEN=y" >> $config_target_mak
7692     echo "$target/config-devices.mak: CONFIG_XEN=y" >> $config_host_mak
7693     if test "$xen_pci_passthrough" = yes; then
7694         echo "CONFIG_XEN_PCI_PASSTHROUGH=y" >> "$config_target_mak"
7695     fi
7696 else
7697     echo "$target/config-devices.mak: CONFIG_XEN=n" >> $config_host_mak
7698 fi
7699 if supported_kvm_target $target; then
7700     echo "CONFIG_KVM=y" >> $config_target_mak
7701     echo "$target/config-devices.mak: CONFIG_KVM=y" >> $config_host_mak
7702 else
7703     echo "$target/config-devices.mak: CONFIG_KVM=n" >> $config_host_mak
7704 fi
7705 if supported_hax_target $target; then
7706     echo "CONFIG_HAX=y" >> $config_target_mak
7707 fi
7708 if supported_hvf_target $target; then
7709     echo "CONFIG_HVF=y" >> $config_target_mak
7710 fi
7711 if supported_whpx_target $target; then
7712     echo "CONFIG_WHPX=y" >> $config_target_mak
7713 fi
7714 if test "$target_bigendian" = "yes" ; then
7715   echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
7716 fi
7717 if test "$target_softmmu" = "yes" ; then
7718   echo "CONFIG_SOFTMMU=y" >> $config_target_mak
7719   if test "$mttcg" = "yes" ; then
7720     echo "TARGET_SUPPORTS_MTTCG=y" >> $config_target_mak
7721   fi
7722 fi
7723 if test "$target_user_only" = "yes" ; then
7724   echo "CONFIG_USER_ONLY=y" >> $config_target_mak
7725   echo "CONFIG_QEMU_INTERP_PREFIX=\"$interp_prefix1\"" >> $config_target_mak
7726 fi
7727 if test "$target_linux_user" = "yes" ; then
7728   echo "CONFIG_LINUX_USER=y" >> $config_target_mak
7729 fi
7730 list=""
7731 if test ! -z "$gdb_xml_files" ; then
7732   for x in $gdb_xml_files; do
7733     list="$list $source_path/gdb-xml/$x"
7734   done
7735   echo "TARGET_XML_FILES=$list" >> $config_target_mak
7736 fi
7737
7738 if test "$target_user_only" = "yes" && test "$bflt" = "yes"; then
7739   echo "TARGET_HAS_BFLT=y" >> $config_target_mak
7740 fi
7741 if test "$target_bsd_user" = "yes" ; then
7742   echo "CONFIG_BSD_USER=y" >> $config_target_mak
7743 fi
7744
7745 if test -n "$target_compiler"; then
7746   echo "CROSS_CC_GUEST=\"$target_compiler\"" >> $config_target_mak
7747
7748   if test -n "$target_compiler_static"; then
7749       echo "CROSS_CC_GUEST_STATIC=$target_compiler_static" >> $config_target_mak
7750   fi
7751
7752   if test -n "$target_compiler_cflags"; then
7753       echo "CROSS_CC_GUEST_CFLAGS=$target_compiler_cflags" >> $config_target_mak
7754   fi
7755 fi
7756
7757
7758 # generate QEMU_CFLAGS/LDFLAGS for targets
7759
7760 cflags=""
7761 ldflags=""
7762
7763 disas_config() {
7764   echo "CONFIG_${1}_DIS=y" >> $config_target_mak
7765   echo "CONFIG_${1}_DIS=y" >> config-all-disas.mak
7766 }
7767
7768 for i in $ARCH $TARGET_BASE_ARCH ; do
7769   case "$i" in
7770   alpha)
7771     disas_config "ALPHA"
7772   ;;
7773   aarch64)
7774     if test -n "${cxx}"; then
7775       disas_config "ARM_A64"
7776     fi
7777   ;;
7778   arm)
7779     disas_config "ARM"
7780     if test -n "${cxx}"; then
7781       disas_config "ARM_A64"
7782     fi
7783   ;;
7784   cris)
7785     disas_config "CRIS"
7786   ;;
7787   hppa)
7788     disas_config "HPPA"
7789   ;;
7790   i386|x86_64|x32)
7791     disas_config "I386"
7792   ;;
7793   lm32)
7794     disas_config "LM32"
7795   ;;
7796   m68k)
7797     disas_config "M68K"
7798   ;;
7799   microblaze*)
7800     disas_config "MICROBLAZE"
7801   ;;
7802   mips*)
7803     disas_config "MIPS"
7804     if test -n "${cxx}"; then
7805       disas_config "NANOMIPS"
7806     fi
7807   ;;
7808   moxie*)
7809     disas_config "MOXIE"
7810   ;;
7811   nios2)
7812     disas_config "NIOS2"
7813   ;;
7814   or1k)
7815     disas_config "OPENRISC"
7816   ;;
7817   ppc*)
7818     disas_config "PPC"
7819   ;;
7820   riscv*)
7821     disas_config "RISCV"
7822   ;;
7823   s390*)
7824     disas_config "S390"
7825   ;;
7826   sh4)
7827     disas_config "SH4"
7828   ;;
7829   sparc*)
7830     disas_config "SPARC"
7831   ;;
7832   xtensa*)
7833     disas_config "XTENSA"
7834   ;;
7835   esac
7836 done
7837 if test "$tcg_interpreter" = "yes" ; then
7838   disas_config "TCI"
7839 fi
7840
7841 case "$ARCH" in
7842 alpha)
7843   # Ensure there's only a single GP
7844   cflags="-msmall-data $cflags"
7845 ;;
7846 esac
7847
7848 if test "$gprof" = "yes" ; then
7849   echo "TARGET_GPROF=y" >> $config_target_mak
7850   if test "$target_linux_user" = "yes" ; then
7851     cflags="-p $cflags"
7852     ldflags="-p $ldflags"
7853   fi
7854   if test "$target_softmmu" = "yes" ; then
7855     ldflags="-p $ldflags"
7856     echo "GPROF_CFLAGS=-p" >> $config_target_mak
7857   fi
7858 fi
7859
7860 if test "$target_linux_user" = "yes" || test "$target_bsd_user" = "yes" ; then
7861   ldflags="$ldflags $textseg_ldflags"
7862 fi
7863
7864 # Newer kernels on s390 check for an S390_PGSTE program header and
7865 # enable the pgste page table extensions in that case. This makes
7866 # the vm.allocate_pgste sysctl unnecessary. We enable this program
7867 # header if
7868 #  - we build on s390x
7869 #  - we build the system emulation for s390x (qemu-system-s390x)
7870 #  - KVM is enabled
7871 #  - the linker supports --s390-pgste
7872 if test "$TARGET_ARCH" = "s390x" && test "$target_softmmu" = "yes" && \
7873         test "$ARCH" = "s390x" && test "$kvm" = "yes"; then
7874     if ld_has --s390-pgste ; then
7875         ldflags="-Wl,--s390-pgste $ldflags"
7876     fi
7877 fi
7878
7879 echo "LDFLAGS+=$ldflags" >> $config_target_mak
7880 echo "QEMU_CFLAGS+=$cflags" >> $config_target_mak
7881
7882 done # for target in $targets
7883
7884 echo "PIXMAN_CFLAGS=$pixman_cflags" >> $config_host_mak
7885 echo "PIXMAN_LIBS=$pixman_libs" >> $config_host_mak
7886
7887 if test -n "$enabled_cross_compilers"; then
7888     echo
7889     echo "NOTE: cross-compilers enabled: $enabled_cross_compilers"
7890 fi
7891
7892 if [ "$fdt" = "git" ]; then
7893   echo "config-host.h: subdir-dtc" >> $config_host_mak
7894 fi
7895 if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
7896   echo "config-host.h: subdir-capstone" >> $config_host_mak
7897 fi
7898 if test -n "$LIBCAPSTONE"; then
7899   echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
7900 fi
7901
7902 if test "$numa" = "yes"; then
7903   echo "CONFIG_NUMA=y" >> $config_host_mak
7904 fi
7905
7906 if test "$ccache_cpp2" = "yes"; then
7907   echo "export CCACHE_CPP2=y" >> $config_host_mak
7908 fi
7909
7910 # If we're using a separate build tree, set it up now.
7911 # DIRS are directories which we simply mkdir in the build tree;
7912 # LINKS are things to symlink back into the source tree
7913 # (these can be both files and directories).
7914 # Caution: do not add files or directories here using wildcards. This
7915 # will result in problems later if a new file matching the wildcard is
7916 # added to the source tree -- nothing will cause configure to be rerun
7917 # so the build tree will be missing the link back to the new file, and
7918 # tests might fail. Prefer to keep the relevant files in their own
7919 # directory and symlink the directory instead.
7920 DIRS="tests tests/tcg tests/tcg/cris tests/tcg/lm32 tests/libqos tests/qapi-schema tests/tcg/xtensa tests/qemu-iotests tests/vm"
7921 DIRS="$DIRS tests/fp tests/qgraph"
7922 DIRS="$DIRS docs docs/interop fsdev scsi"
7923 DIRS="$DIRS pc-bios/optionrom pc-bios/spapr-rtas pc-bios/s390-ccw"
7924 DIRS="$DIRS roms/seabios roms/vgabios"
7925 LINKS="Makefile tests/tcg/Makefile"
7926 LINKS="$LINKS tests/tcg/cris/Makefile tests/tcg/cris/.gdbinit"
7927 LINKS="$LINKS tests/tcg/lm32/Makefile tests/tcg/xtensa/Makefile po/Makefile"
7928 LINKS="$LINKS tests/fp/Makefile"
7929 LINKS="$LINKS pc-bios/optionrom/Makefile pc-bios/keymaps"
7930 LINKS="$LINKS pc-bios/spapr-rtas/Makefile"
7931 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
7932 LINKS="$LINKS roms/seabios/Makefile roms/vgabios/Makefile"
7933 LINKS="$LINKS pc-bios/qemu-icon.bmp"
7934 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
7935 LINKS="$LINKS tests/acceptance tests/data"
7936 LINKS="$LINKS tests/qemu-iotests/check"
7937 LINKS="$LINKS python"
7938 for bios_file in \
7939     $source_path/pc-bios/*.bin \
7940     $source_path/pc-bios/*.lid \
7941     $source_path/pc-bios/*.rom \
7942     $source_path/pc-bios/*.dtb \
7943     $source_path/pc-bios/*.img \
7944     $source_path/pc-bios/openbios-* \
7945     $source_path/pc-bios/u-boot.* \
7946     $source_path/pc-bios/edk2-*.fd.bz2 \
7947     $source_path/pc-bios/palcode-*
7948 do
7949     LINKS="$LINKS pc-bios/$(basename $bios_file)"
7950 done
7951 mkdir -p $DIRS
7952 for f in $LINKS ; do
7953     if [ -e "$source_path/$f" ] && [ "$pwd_is_source_path" != "y" ]; then
7954         symlink "$source_path/$f" "$f"
7955     fi
7956 done
7957
7958 # temporary config to build submodules
7959 for rom in seabios vgabios ; do
7960     config_mak=roms/$rom/config.mak
7961     echo "# Automatically generated by configure - do not modify" > $config_mak
7962     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
7963     echo "AS=$as" >> $config_mak
7964     echo "CCAS=$ccas" >> $config_mak
7965     echo "CC=$cc" >> $config_mak
7966     echo "BCC=bcc" >> $config_mak
7967     echo "CPP=$cpp" >> $config_mak
7968     echo "OBJCOPY=objcopy" >> $config_mak
7969     echo "IASL=$iasl" >> $config_mak
7970     echo "LD=$ld" >> $config_mak
7971     echo "RANLIB=$ranlib" >> $config_mak
7972 done
7973
7974 # set up qemu-iotests in this build directory
7975 iotests_common_env="tests/qemu-iotests/common.env"
7976
7977 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
7978 echo >> "$iotests_common_env"
7979 echo "export PYTHON='$python'" >> "$iotests_common_env"
7980
7981 # Save the configure command line for later reuse.
7982 cat <<EOD >config.status
7983 #!/bin/sh
7984 # Generated by configure.
7985 # Run this file to recreate the current configuration.
7986 # Compiler output produced by configure, useful for debugging
7987 # configure, is in config.log if it exists.
7988 EOD
7989
7990 preserve_env() {
7991     envname=$1
7992
7993     eval envval=\$$envname
7994
7995     if test -n "$envval"
7996     then
7997         echo "$envname='$envval'" >> config.status
7998         echo "export $envname" >> config.status
7999     else
8000         echo "unset $envname" >> config.status
8001     fi
8002 }
8003
8004 # Preserve various env variables that influence what
8005 # features/build target configure will detect
8006 preserve_env AR
8007 preserve_env AS
8008 preserve_env CC
8009 preserve_env CPP
8010 preserve_env CXX
8011 preserve_env INSTALL
8012 preserve_env LD
8013 preserve_env LD_LIBRARY_PATH
8014 preserve_env LIBTOOL
8015 preserve_env MAKE
8016 preserve_env NM
8017 preserve_env OBJCOPY
8018 preserve_env PATH
8019 preserve_env PKG_CONFIG
8020 preserve_env PKG_CONFIG_LIBDIR
8021 preserve_env PKG_CONFIG_PATH
8022 preserve_env PYTHON
8023 preserve_env SDL_CONFIG
8024 preserve_env SDL2_CONFIG
8025 preserve_env SMBD
8026 preserve_env STRIP
8027 preserve_env WINDRES
8028
8029 printf "exec" >>config.status
8030 printf " '%s'" "$0" "$@" >>config.status
8031 echo ' "$@"' >>config.status
8032 chmod +x config.status
8033
8034 rm -r "$TMPDIR1"