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 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     mkdir build
  35     touch $MARKER
  36
  37     cat > GNUmakefile <<'EOF'
  38 # This file is auto-generated by configure to support in-source tree
  39 # 'make' command invocation
  40
  41 ifeq ($(MAKECMDGOALS),)
  42 recurse: all
  43 endif
  44
  45 .NOTPARALLEL: %
  46 %: force
  47         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  48         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  49         @if test "$(MAKECMDGOALS)" = "distclean" && \
  50             test -e build/auto-created-by-configure ; \
  51         then \
  52             rm -rf build GNUmakefile ; \
  53         fi
  54 force: ;
  55 .PHONY: force
  56 GNUmakefile: ;
  57
  58 EOF
  59     cd build
  60     exec $source_path/configure "$@"
  61 fi
  62
  63 # Temporary directory used for files created while
  64 # configure runs. Since it is in the build directory
  65 # we can safely blow away any previous version of it
  66 # (and we need not jump through hoops to try to delete
  67 # it when configure exits.)
  68 TMPDIR1="config-temp"
  69 rm -rf "${TMPDIR1}"
  70 mkdir -p "${TMPDIR1}"
  71 if [ $? -ne 0 ]; then
  72     echo "ERROR: failed to create temporary directory"
  73     exit 1
  74 fi
  75
  76 TMPB="qemu-conf"
  77 TMPC="${TMPDIR1}/${TMPB}.c"
  78 TMPO="${TMPDIR1}/${TMPB}.o"
  79 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
  80 TMPE="${TMPDIR1}/${TMPB}.exe"
  81 TMPTXT="${TMPDIR1}/${TMPB}.txt"
  82
  83 rm -f config.log
  84
  85 # Print a helpful header at the top of config.log
  86 echo "# QEMU configure log $(date)" >> config.log
  87 printf "# Configured with:" >> config.log
  88 printf " '%s'" "$0" "$@" >> config.log
  89 echo >> config.log
  90 echo "#" >> config.log
  91
  92 print_error() {
  93     (echo
  94     echo "ERROR: $1"
  95     while test -n "$2"; do
  96         echo "       $2"
  97         shift
  98     done
  99     echo) >&2
 100 }
 101
 102 error_exit() {
 103     print_error "$@"
 104     exit 1
 105 }
 106
 107 do_compiler() {
 108     # Run the compiler, capturing its output to the log. First argument
 109     # is compiler binary to execute.
 110     local compiler="$1"
 111     shift
 112     if test -n "$BASH_VERSION"; then eval '
 113         echo >>config.log "
 114 funcs: ${FUNCNAME[*]}
 115 lines: ${BASH_LINENO[*]}"
 116     '; fi
 117     echo $compiler "$@" >> config.log
 118     $compiler "$@" >> config.log 2>&1 || return $?
 119     # Test passed. If this is an --enable-werror build, rerun
 120     # the test with -Werror and bail out if it fails. This
 121     # makes warning-generating-errors in configure test code
 122     # obvious to developers.
 123     if test "$werror" != "yes"; then
 124         return 0
 125     fi
 126     # Don't bother rerunning the compile if we were already using -Werror
 127     case "$*" in
 128         *-Werror*)
 129            return 0
 130         ;;
 131     esac
 132     echo $compiler -Werror "$@" >> config.log
 133     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 134     error_exit "configure test passed without -Werror but failed with -Werror." \
 135         "This is probably a bug in the configure script. The failing command" \
 136         "will be at the bottom of config.log." \
 137         "You can run configure with --disable-werror to bypass this check."
 138 }
 139
 140 do_cc() {
 141     do_compiler "$cc" "$@"
 142 }
 143
 144 do_cxx() {
 145     do_compiler "$cxx" "$@"
 146 }
 147
 148 # Append $2 to the variable named $1, with space separation
 149 add_to() {
 150     eval $1=\${$1:+\"\$$1 \"}\$2
 151 }
 152
 153 update_cxxflags() {
 154     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 155     # options which some versions of GCC's C++ compiler complain about
 156     # because they only make sense for C programs.
 157     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 158     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu99/-std=gnu++11/)
 159     for arg in $QEMU_CFLAGS; do
 160         case $arg in
 161             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 162             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 163                 ;;
 164             *)
 165                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 166                 ;;
 167         esac
 168     done
 169 }
 170
 171 compile_object() {
 172   local_cflags="$1"
 173   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 174 }
 175
 176 compile_prog() {
 177   local_cflags="$1"
 178   local_ldflags="$2"
 179   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 180       $LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 181 }
 182
 183 # symbolically link $1 to $2.  Portable version of "ln -sf".
 184 symlink() {
 185   rm -rf "$2"
 186   mkdir -p "$(dirname "$2")"
 187   ln -s "$1" "$2"
 188 }
 189
 190 # check whether a command is available to this shell (may be either an
 191 # executable or a builtin)
 192 has() {
 193     type "$1" >/dev/null 2>&1
 194 }
 195
 196 version_ge () {
 197     local_ver1=`echo $1 | tr . ' '`
 198     local_ver2=`echo $2 | tr . ' '`
 199     while true; do
 200         set x $local_ver1
 201         local_first=${2-0}
 202         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 203         shift ${2:+2}
 204         local_ver1=$*
 205         set x $local_ver2
 206         # the second argument finished, the first must be greater or equal
 207         test $# = 1 && return 0
 208         test $local_first -lt $2 && return 1
 209         test $local_first -gt $2 && return 0
 210         shift ${2:+2}
 211         local_ver2=$*
 212     done
 213 }
 214
 215 have_backend () {
 216     echo "$trace_backends" | grep "$1" >/dev/null
 217 }
 218
 219 glob() {
 220     eval test -z '"${1#'"$2"'}"'
 221 }
 222
 223 ld_has() {
 224     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 225 }
 226
 227 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 228 then
 229   error_exit "main directory cannot contain spaces nor colons"
 230 fi
 231
 232 # default parameters
 233 cpu=""
 234 iasl="iasl"
 235 interp_prefix="/usr/gnemul/qemu-%M"
 236 static="no"
 237 cross_prefix=""
 238 audio_drv_list=""
 239 block_drv_rw_whitelist=""
 240 block_drv_ro_whitelist=""
 241 host_cc="cc"
 242 audio_win_int=""
 243 libs_qga=""
 244 debug_info="yes"
 245 stack_protector=""
 246 safe_stack=""
 247 use_containers="yes"
 248 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 249
 250 if test -e "$source_path/.git"
 251 then
 252     git_update=yes
 253     git_submodules="ui/keycodemapdb"
 254     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 255     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 256 else
 257     git_update=no
 258     git_submodules=""
 259
 260     if ! test -f "$source_path/ui/keycodemapdb/README"
 261     then
 262         echo
 263         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 264         echo
 265         echo "This is not a GIT checkout but module content appears to"
 266         echo "be missing. Do not use 'git archive' or GitHub download links"
 267         echo "to acquire QEMU source archives. Non-GIT builds are only"
 268         echo "supported with source archives linked from:"
 269         echo
 270         echo "  https://www.qemu.org/download/#source"
 271         echo
 272         echo "Developers working with GIT can use scripts/archive-source.sh"
 273         echo "if they need to create valid source archives."
 274         echo
 275         exit 1
 276     fi
 277 fi
 278 git="git"
 279
 280 # Don't accept a target_list environment variable.
 281 unset target_list
 282 unset target_list_exclude
 283
 284 # Default value for a variable defining feature "foo".
 285 #  * foo="no"  feature will only be used if --enable-foo arg is given
 286 #  * foo=""    feature will be searched for, and if found, will be used
 287 #              unless --disable-foo is given
 288 #  * foo="yes" this value will only be set by --enable-foo flag.
 289 #              feature will searched for,
 290 #              if not found, configure exits with error
 291 #
 292 # Always add --enable-foo and --disable-foo command line args.
 293 # Distributions want to ensure that several features are compiled in, and it
 294 # is impossible without a --enable-foo that exits if a feature is not found.
 295
 296 brlapi=""
 297 curl=""
 298 iconv="auto"
 299 curses="auto"
 300 docs="auto"
 301 fdt="auto"
 302 netmap="no"
 303 sdl="auto"
 304 sdl_image="auto"
 305 virtiofsd="auto"
 306 virtfs=""
 307 libudev="auto"
 308 mpath="auto"
 309 vnc="enabled"
 310 sparse="auto"
 311 vde=""
 312 vnc_sasl="auto"
 313 vnc_jpeg="auto"
 314 vnc_png="auto"
 315 xkbcommon="auto"
 316 xen=""
 317 xen_ctrl_version=""
 318 xen_pci_passthrough="auto"
 319 linux_aio=""
 320 linux_io_uring=""
 321 cap_ng=""
 322 attr=""
 323 libattr=""
 324 xfs=""
 325 tcg="enabled"
 326 membarrier=""
 327 vhost_net=""
 328 vhost_crypto=""
 329 vhost_scsi=""
 330 vhost_vsock=""
 331 vhost_user="no"
 332 vhost_user_blk_server="auto"
 333 vhost_user_fs=""
 334 kvm="auto"
 335 hax="auto"
 336 hvf="auto"
 337 whpx="auto"
 338 rdma=""
 339 pvrdma=""
 340 gprof="no"
 341 debug_tcg="no"
 342 debug="no"
 343 sanitizers="no"
 344 tsan="no"
 345 fortify_source=""
 346 strip_opt="yes"
 347 tcg_interpreter="no"
 348 bigendian="no"
 349 mingw32="no"
 350 gcov="no"
 351 EXESUF=""
 352 HOST_DSOSUF=".so"
 353 modules="no"
 354 module_upgrades="no"
 355 prefix="/usr/local"
 356 qemu_suffix="qemu"
 357 slirp="auto"
 358 oss_lib=""
 359 bsd="no"
 360 linux="no"
 361 solaris="no"
 362 profiler="no"
 363 cocoa="auto"
 364 softmmu="yes"
 365 linux_user="no"
 366 bsd_user="no"
 367 blobs="true"
 368 pkgversion=""
 369 pie=""
 370 qom_cast_debug="yes"
 371 trace_backends="log"
 372 trace_file="trace"
 373 spice=""
 374 rbd=""
 375 smartcard=""
 376 u2f="auto"
 377 libusb=""
 378 usb_redir=""
 379 opengl=""
 380 opengl_dmabuf="no"
 381 cpuid_h="no"
 382 avx2_opt=""
 383 capstone="auto"
 384 lzo=""
 385 snappy=""
 386 bzip2=""
 387 lzfse=""
 388 zstd=""
 389 guest_agent=""
 390 guest_agent_with_vss="no"
 391 guest_agent_ntddscsi="no"
 392 guest_agent_msi=""
 393 vss_win32_sdk=""
 394 win_sdk="no"
 395 want_tools=""
 396 libiscsi=""
 397 libnfs=""
 398 coroutine=""
 399 coroutine_pool=""
 400 debug_stack_usage="no"
 401 crypto_afalg="no"
 402 seccomp=""
 403 glusterfs=""
 404 glusterfs_xlator_opt="no"
 405 glusterfs_discard="no"
 406 glusterfs_fallocate="no"
 407 glusterfs_zerofill="no"
 408 glusterfs_ftruncate_has_stat="no"
 409 glusterfs_iocb_has_stat="no"
 410 gtk=""
 411 gtk_gl="no"
 412 tls_priority="NORMAL"
 413 gnutls=""
 414 nettle=""
 415 nettle_xts="no"
 416 gcrypt=""
 417 gcrypt_hmac="no"
 418 gcrypt_xts="no"
 419 qemu_private_xts="yes"
 420 auth_pam=""
 421 vte=""
 422 virglrenderer=""
 423 tpm=""
 424 libssh=""
 425 live_block_migration="yes"
 426 numa=""
 427 tcmalloc="no"
 428 jemalloc="no"
 429 replication="yes"
 430 bochs="yes"
 431 cloop="yes"
 432 dmg="yes"
 433 qcow1="yes"
 434 vdi="yes"
 435 vvfat="yes"
 436 qed="yes"
 437 parallels="yes"
 438 sheepdog="no"
 439 libxml2=""
 440 debug_mutex="no"
 441 libpmem=""
 442 default_devices="yes"
 443 plugins="no"
 444 fuzzing="no"
 445 rng_none="no"
 446 secret_keyring=""
 447 libdaxctl=""
 448 meson=""
 449 ninja=""
 450 skip_meson=no
 451 gettext=""
 452 fuse="auto"
 453 fuse_lseek="auto"
 454
 455 bogus_os="no"
 456 malloc_trim="auto"
 457
 458 # parse CC options first
 459 for opt do
 460   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 461   case "$opt" in
 462   --cross-prefix=*) cross_prefix="$optarg"
 463   ;;
 464   --cc=*) CC="$optarg"
 465   ;;
 466   --cxx=*) CXX="$optarg"
 467   ;;
 468   --cpu=*) cpu="$optarg"
 469   ;;
 470   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 471                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 472   ;;
 473   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 474   ;;
 475   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 476                      EXTRA_LDFLAGS="$optarg"
 477   ;;
 478   --enable-debug-info) debug_info="yes"
 479   ;;
 480   --disable-debug-info) debug_info="no"
 481   ;;
 482   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 483   ;;
 484   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 485                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 486                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 487   ;;
 488   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 489                 cc_archs="$cc_archs $cc_arch"
 490                 eval "cross_cc_${cc_arch}=\$optarg"
 491                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 492   ;;
 493   esac
 494 done
 495 # OS specific
 496 # Using uname is really, really broken.  Once we have the right set of checks
 497 # we can eliminate its usage altogether.
 498
 499 # Preferred compiler:
 500 #  ${CC} (if set)
 501 #  ${cross_prefix}gcc (if cross-prefix specified)
 502 #  system compiler
 503 if test -z "${CC}${cross_prefix}"; then
 504   cc="$host_cc"
 505 else
 506   cc="${CC-${cross_prefix}gcc}"
 507 fi
 508
 509 if test -z "${CXX}${cross_prefix}"; then
 510   cxx="c++"
 511 else
 512   cxx="${CXX-${cross_prefix}g++}"
 513 fi
 514
 515 ar="${AR-${cross_prefix}ar}"
 516 as="${AS-${cross_prefix}as}"
 517 ccas="${CCAS-$cc}"
 518 cpp="${CPP-$cc -E}"
 519 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 520 ld="${LD-${cross_prefix}ld}"
 521 ranlib="${RANLIB-${cross_prefix}ranlib}"
 522 nm="${NM-${cross_prefix}nm}"
 523 strip="${STRIP-${cross_prefix}strip}"
 524 windres="${WINDRES-${cross_prefix}windres}"
 525 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 526 query_pkg_config() {
 527     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 528 }
 529 pkg_config=query_pkg_config
 530 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 531
 532 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 533 ARFLAGS="${ARFLAGS-rv}"
 534
 535 # default flags for all hosts
 536 # We use -fwrapv to tell the compiler that we require a C dialect where
 537 # left shift of signed integers is well defined and has the expected
 538 # 2s-complement style results. (Both clang and gcc agree that it
 539 # provides these semantics.)
 540 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 541 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 542 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 543 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 544
 545 # Flags that are needed during configure but later taken care of by Meson
 546 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 547 CONFIGURE_LDFLAGS=
 548
 549
 550 check_define() {
 551 cat > $TMPC <<EOF
 552 #if !defined($1)
 553 #error $1 not defined
 554 #endif
 555 int main(void) { return 0; }
 556 EOF
 557   compile_object
 558 }
 559
 560 check_include() {
 561 cat > $TMPC <<EOF
 562 #include <$1>
 563 int main(void) { return 0; }
 564 EOF
 565   compile_object
 566 }
 567
 568 write_c_skeleton() {
 569     cat > $TMPC <<EOF
 570 int main(void) { return 0; }
 571 EOF
 572 }
 573
 574 write_c_fuzzer_skeleton() {
 575     cat > $TMPC <<EOF
 576 #include <stdint.h>
 577 #include <sys/types.h>
 578 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 579 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 580 EOF
 581 }
 582
 583 if check_define __linux__ ; then
 584   targetos="Linux"
 585 elif check_define _WIN32 ; then
 586   targetos='MINGW32'
 587 elif check_define __OpenBSD__ ; then
 588   targetos='OpenBSD'
 589 elif check_define __sun__ ; then
 590   targetos='SunOS'
 591 elif check_define __HAIKU__ ; then
 592   targetos='Haiku'
 593 elif check_define __FreeBSD__ ; then
 594   targetos='FreeBSD'
 595 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 596   targetos='GNU/kFreeBSD'
 597 elif check_define __DragonFly__ ; then
 598   targetos='DragonFly'
 599 elif check_define __NetBSD__; then
 600   targetos='NetBSD'
 601 elif check_define __APPLE__; then
 602   targetos='Darwin'
 603 else
 604   # This is a fatal error, but don't report it yet, because we
 605   # might be going to just print the --help text, or it might
 606   # be the result of a missing compiler.
 607   targetos='bogus'
 608   bogus_os='yes'
 609 fi
 610
 611 # Some host OSes need non-standard checks for which CPU to use.
 612 # Note that these checks are broken for cross-compilation: if you're
 613 # cross-compiling to one of these OSes then you'll need to specify
 614 # the correct CPU with the --cpu option.
 615 case $targetos in
 616 Darwin)
 617   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 618   # run 64-bit userspace code.
 619   # If the user didn't specify a CPU explicitly and the kernel says this is
 620   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 621   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 622     cpu="x86_64"
 623   fi
 624   HOST_DSOSUF=".dylib"
 625   ;;
 626 SunOS)
 627   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 628   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 629     cpu="x86_64"
 630   fi
 631 esac
 632
 633 if test ! -z "$cpu" ; then
 634   # command line argument
 635   :
 636 elif check_define __i386__ ; then
 637   cpu="i386"
 638 elif check_define __x86_64__ ; then
 639   if check_define __ILP32__ ; then
 640     cpu="x32"
 641   else
 642     cpu="x86_64"
 643   fi
 644 elif check_define __sparc__ ; then
 645   if check_define __arch64__ ; then
 646     cpu="sparc64"
 647   else
 648     cpu="sparc"
 649   fi
 650 elif check_define _ARCH_PPC ; then
 651   if check_define _ARCH_PPC64 ; then
 652     if check_define _LITTLE_ENDIAN ; then
 653       cpu="ppc64le"
 654     else
 655       cpu="ppc64"
 656     fi
 657   else
 658     cpu="ppc"
 659   fi
 660 elif check_define __mips__ ; then
 661   cpu="mips"
 662 elif check_define __s390__ ; then
 663   if check_define __s390x__ ; then
 664     cpu="s390x"
 665   else
 666     cpu="s390"
 667   fi
 668 elif check_define __riscv ; then
 669   if check_define _LP64 ; then
 670     cpu="riscv64"
 671   else
 672     cpu="riscv32"
 673   fi
 674 elif check_define __arm__ ; then
 675   cpu="arm"
 676 elif check_define __aarch64__ ; then
 677   cpu="aarch64"
 678 else
 679   cpu=$(uname -m)
 680 fi
 681
 682 ARCH=
 683 # Normalise host CPU name and set ARCH.
 684 # Note that this case should only have supported host CPUs, not guests.
 685 case "$cpu" in
 686   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 687   ;;
 688   ppc64le)
 689     ARCH="ppc64"
 690   ;;
 691   i386|i486|i586|i686|i86pc|BePC)
 692     cpu="i386"
 693   ;;
 694   x86_64|amd64)
 695     cpu="x86_64"
 696   ;;
 697   armv*b|armv*l|arm)
 698     cpu="arm"
 699   ;;
 700   aarch64)
 701     cpu="aarch64"
 702   ;;
 703   mips*)
 704     cpu="mips"
 705   ;;
 706   sparc|sun4[cdmuv])
 707     cpu="sparc"
 708   ;;
 709   *)
 710     # This will result in either an error or falling back to TCI later
 711     ARCH=unknown
 712   ;;
 713 esac
 714 if test -z "$ARCH"; then
 715   ARCH="$cpu"
 716 fi
 717
 718 # OS specific
 719
 720 case $targetos in
 721 MINGW32*)
 722   mingw32="yes"
 723   audio_possible_drivers="dsound sdl"
 724   if check_include dsound.h; then
 725     audio_drv_list="dsound"
 726   else
 727     audio_drv_list=""
 728   fi
 729   supported_os="yes"
 730   pie="no"
 731 ;;
 732 GNU/kFreeBSD)
 733   bsd="yes"
 734   audio_drv_list="oss try-sdl"
 735   audio_possible_drivers="oss sdl pa"
 736 ;;
 737 FreeBSD)
 738   bsd="yes"
 739   make="${MAKE-gmake}"
 740   audio_drv_list="oss try-sdl"
 741   audio_possible_drivers="oss sdl pa"
 742   # needed for kinfo_getvmmap(3) in libutil.h
 743   netmap=""  # enable netmap autodetect
 744 ;;
 745 DragonFly)
 746   bsd="yes"
 747   make="${MAKE-gmake}"
 748   audio_drv_list="oss try-sdl"
 749   audio_possible_drivers="oss sdl pa"
 750 ;;
 751 NetBSD)
 752   bsd="yes"
 753   make="${MAKE-gmake}"
 754   audio_drv_list="oss try-sdl"
 755   audio_possible_drivers="oss sdl"
 756   oss_lib="-lossaudio"
 757 ;;
 758 OpenBSD)
 759   bsd="yes"
 760   make="${MAKE-gmake}"
 761   audio_drv_list="try-sdl"
 762   audio_possible_drivers="sdl"
 763 ;;
 764 Darwin)
 765   bsd="yes"
 766   darwin="yes"
 767   if [ "$cpu" = "x86_64" ] ; then
 768     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 769     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 770   fi
 771   cocoa="enabled"
 772   audio_drv_list="coreaudio try-sdl"
 773   audio_possible_drivers="coreaudio sdl"
 774   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 775   # Disable attempts to use ObjectiveC features in os/object.h since they
 776   # won't work when we're compiling with gcc as a C compiler.
 777   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 778 ;;
 779 SunOS)
 780   solaris="yes"
 781   make="${MAKE-gmake}"
 782   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 783   if test -f /usr/include/sys/soundcard.h ; then
 784     audio_drv_list="oss try-sdl"
 785   fi
 786   audio_possible_drivers="oss sdl"
 787 # needed for CMSG_ macros in sys/socket.h
 788   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 789 # needed for TIOCWIN* defines in termios.h
 790   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 791 ;;
 792 Haiku)
 793   haiku="yes"
 794   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 795 ;;
 796 Linux)
 797   audio_drv_list="try-pa oss"
 798   audio_possible_drivers="oss alsa sdl pa"
 799   linux="yes"
 800   linux_user="yes"
 801   vhost_user="yes"
 802 ;;
 803 esac
 804
 805 if [ "$bsd" = "yes" ] ; then
 806   if [ "$darwin" != "yes" ] ; then
 807     bsd_user="yes"
 808   fi
 809 fi
 810
 811 : ${make=${MAKE-make}}
 812
 813 # We prefer python 3.x. A bare 'python' is traditionally
 814 # python 2.x, but some distros have it as python 3.x, so
 815 # we check that too
 816 python=
 817 explicit_python=no
 818 for binary in "${PYTHON-python3}" python
 819 do
 820     if has "$binary"
 821     then
 822         python=$(command -v "$binary")
 823         break
 824     fi
 825 done
 826
 827
 828 # Check for ancillary tools used in testing
 829 genisoimage=
 830 for binary in genisoimage mkisofs
 831 do
 832     if has $binary
 833     then
 834         genisoimage=$(command -v "$binary")
 835         break
 836     fi
 837 done
 838
 839 : ${smbd=${SMBD-/usr/sbin/smbd}}
 840
 841 # Default objcc to clang if available, otherwise use CC
 842 if has clang; then
 843   objcc=clang
 844 else
 845   objcc="$cc"
 846 fi
 847
 848 if test "$mingw32" = "yes" ; then
 849   EXESUF=".exe"
 850   HOST_DSOSUF=".dll"
 851   # MinGW needs -mthreads for TLS and macro _MT.
 852   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 853   write_c_skeleton;
 854   prefix="/qemu"
 855   qemu_suffix=""
 856   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 857 fi
 858
 859 werror=""
 860
 861 for opt do
 862   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 863   case "$opt" in
 864   --help|-h) show_help=yes
 865   ;;
 866   --version|-V) exec cat $source_path/VERSION
 867   ;;
 868   --prefix=*) prefix="$optarg"
 869   ;;
 870   --interp-prefix=*) interp_prefix="$optarg"
 871   ;;
 872   --cross-prefix=*)
 873   ;;
 874   --cc=*)
 875   ;;
 876   --host-cc=*) host_cc="$optarg"
 877   ;;
 878   --cxx=*)
 879   ;;
 880   --iasl=*) iasl="$optarg"
 881   ;;
 882   --objcc=*) objcc="$optarg"
 883   ;;
 884   --make=*) make="$optarg"
 885   ;;
 886   --install=*)
 887   ;;
 888   --python=*) python="$optarg" ; explicit_python=yes
 889   ;;
 890   --sphinx-build=*) sphinx_build="$optarg"
 891   ;;
 892   --skip-meson) skip_meson=yes
 893   ;;
 894   --meson=*) meson="$optarg"
 895   ;;
 896   --ninja=*) ninja="$optarg"
 897   ;;
 898   --smbd=*) smbd="$optarg"
 899   ;;
 900   --extra-cflags=*)
 901   ;;
 902   --extra-cxxflags=*)
 903   ;;
 904   --extra-ldflags=*)
 905   ;;
 906   --enable-debug-info)
 907   ;;
 908   --disable-debug-info)
 909   ;;
 910   --cross-cc-*)
 911   ;;
 912   --enable-modules)
 913       modules="yes"
 914   ;;
 915   --disable-modules)
 916       modules="no"
 917   ;;
 918   --disable-module-upgrades) module_upgrades="no"
 919   ;;
 920   --enable-module-upgrades) module_upgrades="yes"
 921   ;;
 922   --cpu=*)
 923   ;;
 924   --target-list=*) target_list="$optarg"
 925                    if test "$target_list_exclude"; then
 926                        error_exit "Can't mix --target-list with --target-list-exclude"
 927                    fi
 928   ;;
 929   --target-list-exclude=*) target_list_exclude="$optarg"
 930                    if test "$target_list"; then
 931                        error_exit "Can't mix --target-list-exclude with --target-list"
 932                    fi
 933   ;;
 934   --enable-trace-backends=*) trace_backends="$optarg"
 935   ;;
 936   # XXX: backwards compatibility
 937   --enable-trace-backend=*) trace_backends="$optarg"
 938   ;;
 939   --with-trace-file=*) trace_file="$optarg"
 940   ;;
 941   --with-default-devices) default_devices="yes"
 942   ;;
 943   --without-default-devices) default_devices="no"
 944   ;;
 945   --enable-gprof) gprof="yes"
 946   ;;
 947   --enable-gcov) gcov="yes"
 948   ;;
 949   --static)
 950     static="yes"
 951     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 952   ;;
 953   --mandir=*) mandir="$optarg"
 954   ;;
 955   --bindir=*) bindir="$optarg"
 956   ;;
 957   --libdir=*) libdir="$optarg"
 958   ;;
 959   --libexecdir=*) libexecdir="$optarg"
 960   ;;
 961   --includedir=*) includedir="$optarg"
 962   ;;
 963   --datadir=*) datadir="$optarg"
 964   ;;
 965   --with-suffix=*) qemu_suffix="$optarg"
 966   ;;
 967   --docdir=*) docdir="$optarg"
 968   ;;
 969   --localedir=*) localedir="$optarg"
 970   ;;
 971   --sysconfdir=*) sysconfdir="$optarg"
 972   ;;
 973   --localstatedir=*) local_statedir="$optarg"
 974   ;;
 975   --firmwarepath=*) firmwarepath="$optarg"
 976   ;;
 977   --host=*|--build=*|\
 978   --disable-dependency-tracking|\
 979   --sbindir=*|--sharedstatedir=*|\
 980   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 981   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 982     # These switches are silently ignored, for compatibility with
 983     # autoconf-generated configure scripts. This allows QEMU's
 984     # configure to be used by RPM and similar macros that set
 985     # lots of directory switches by default.
 986   ;;
 987   --disable-sdl) sdl="disabled"
 988   ;;
 989   --enable-sdl) sdl="enabled"
 990   ;;
 991   --disable-sdl-image) sdl_image="disabled"
 992   ;;
 993   --enable-sdl-image) sdl_image="enabled"
 994   ;;
 995   --disable-qom-cast-debug) qom_cast_debug="no"
 996   ;;
 997   --enable-qom-cast-debug) qom_cast_debug="yes"
 998   ;;
 999   --disable-virtfs) virtfs="no"
1000   ;;
1001   --enable-virtfs) virtfs="yes"
1002   ;;
1003   --disable-libudev) libudev="disabled"
1004   ;;
1005   --enable-libudev) libudev="enabled"
1006   ;;
1007   --disable-virtiofsd) virtiofsd="disabled"
1008   ;;
1009   --enable-virtiofsd) virtiofsd="enabled"
1010   ;;
1011   --disable-mpath) mpath="disabled"
1012   ;;
1013   --enable-mpath) mpath="enabled"
1014   ;;
1015   --disable-vnc) vnc="disabled"
1016   ;;
1017   --enable-vnc) vnc="enabled"
1018   ;;
1019   --disable-gettext) gettext="false"
1020   ;;
1021   --enable-gettext) gettext="true"
1022   ;;
1023   --oss-lib=*) oss_lib="$optarg"
1024   ;;
1025   --audio-drv-list=*) audio_drv_list="$optarg"
1026   ;;
1027   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1028   ;;
1029   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1030   ;;
1031   --enable-debug-tcg) debug_tcg="yes"
1032   ;;
1033   --disable-debug-tcg) debug_tcg="no"
1034   ;;
1035   --enable-debug)
1036       # Enable debugging options that aren't excessively noisy
1037       debug_tcg="yes"
1038       debug_mutex="yes"
1039       debug="yes"
1040       strip_opt="no"
1041       fortify_source="no"
1042   ;;
1043   --enable-sanitizers) sanitizers="yes"
1044   ;;
1045   --disable-sanitizers) sanitizers="no"
1046   ;;
1047   --enable-tsan) tsan="yes"
1048   ;;
1049   --disable-tsan) tsan="no"
1050   ;;
1051   --enable-sparse) sparse="enabled"
1052   ;;
1053   --disable-sparse) sparse="disabled"
1054   ;;
1055   --disable-strip) strip_opt="no"
1056   ;;
1057   --disable-vnc-sasl) vnc_sasl="disabled"
1058   ;;
1059   --enable-vnc-sasl) vnc_sasl="enabled"
1060   ;;
1061   --disable-vnc-jpeg) vnc_jpeg="disabled"
1062   ;;
1063   --enable-vnc-jpeg) vnc_jpeg="enabled"
1064   ;;
1065   --disable-vnc-png) vnc_png="disabled"
1066   ;;
1067   --enable-vnc-png) vnc_png="enabled"
1068   ;;
1069   --disable-slirp) slirp="disabled"
1070   ;;
1071   --enable-slirp=git) slirp="internal"
1072   ;;
1073   --enable-slirp=system) slirp="system"
1074   ;;
1075   --disable-vde) vde="no"
1076   ;;
1077   --enable-vde) vde="yes"
1078   ;;
1079   --disable-netmap) netmap="no"
1080   ;;
1081   --enable-netmap) netmap="yes"
1082   ;;
1083   --disable-xen) xen="disabled"
1084   ;;
1085   --enable-xen) xen="enabled"
1086   ;;
1087   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1088   ;;
1089   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1090   ;;
1091   --disable-brlapi) brlapi="no"
1092   ;;
1093   --enable-brlapi) brlapi="yes"
1094   ;;
1095   --disable-kvm) kvm="disabled"
1096   ;;
1097   --enable-kvm) kvm="enabled"
1098   ;;
1099   --disable-hax) hax="disabled"
1100   ;;
1101   --enable-hax) hax="enabled"
1102   ;;
1103   --disable-hvf) hvf="disabled"
1104   ;;
1105   --enable-hvf) hvf="enabled"
1106   ;;
1107   --disable-whpx) whpx="disabled"
1108   ;;
1109   --enable-whpx) whpx="enabled"
1110   ;;
1111   --disable-tcg-interpreter) tcg_interpreter="no"
1112   ;;
1113   --enable-tcg-interpreter) tcg_interpreter="yes"
1114   ;;
1115   --disable-cap-ng)  cap_ng="no"
1116   ;;
1117   --enable-cap-ng) cap_ng="yes"
1118   ;;
1119   --disable-tcg) tcg="disabled"
1120   ;;
1121   --enable-tcg) tcg="enabled"
1122   ;;
1123   --disable-malloc-trim) malloc_trim="disabled"
1124   ;;
1125   --enable-malloc-trim) malloc_trim="enabled"
1126   ;;
1127   --disable-spice) spice="no"
1128   ;;
1129   --enable-spice) spice="yes"
1130   ;;
1131   --disable-libiscsi) libiscsi="no"
1132   ;;
1133   --enable-libiscsi) libiscsi="yes"
1134   ;;
1135   --disable-libnfs) libnfs="no"
1136   ;;
1137   --enable-libnfs) libnfs="yes"
1138   ;;
1139   --enable-profiler) profiler="yes"
1140   ;;
1141   --disable-cocoa) cocoa="disabled"
1142   ;;
1143   --enable-cocoa)
1144       cocoa="enabled" ;
1145       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1146   ;;
1147   --disable-system) softmmu="no"
1148   ;;
1149   --enable-system) softmmu="yes"
1150   ;;
1151   --disable-user)
1152       linux_user="no" ;
1153       bsd_user="no" ;
1154   ;;
1155   --enable-user) ;;
1156   --disable-linux-user) linux_user="no"
1157   ;;
1158   --enable-linux-user) linux_user="yes"
1159   ;;
1160   --disable-bsd-user) bsd_user="no"
1161   ;;
1162   --enable-bsd-user) bsd_user="yes"
1163   ;;
1164   --enable-pie) pie="yes"
1165   ;;
1166   --disable-pie) pie="no"
1167   ;;
1168   --enable-werror) werror="yes"
1169   ;;
1170   --disable-werror) werror="no"
1171   ;;
1172   --enable-stack-protector) stack_protector="yes"
1173   ;;
1174   --disable-stack-protector) stack_protector="no"
1175   ;;
1176   --enable-safe-stack) safe_stack="yes"
1177   ;;
1178   --disable-safe-stack) safe_stack="no"
1179   ;;
1180   --disable-curses) curses="disabled"
1181   ;;
1182   --enable-curses) curses="enabled"
1183   ;;
1184   --disable-iconv) iconv="disabled"
1185   ;;
1186   --enable-iconv) iconv="enabled"
1187   ;;
1188   --disable-curl) curl="no"
1189   ;;
1190   --enable-curl) curl="yes"
1191   ;;
1192   --disable-fdt) fdt="disabled"
1193   ;;
1194   --enable-fdt) fdt="enabled"
1195   ;;
1196   --enable-fdt=git) fdt="internal"
1197   ;;
1198   --enable-fdt=system) fdt="system"
1199   ;;
1200   --disable-linux-aio) linux_aio="no"
1201   ;;
1202   --enable-linux-aio) linux_aio="yes"
1203   ;;
1204   --disable-linux-io-uring) linux_io_uring="no"
1205   ;;
1206   --enable-linux-io-uring) linux_io_uring="yes"
1207   ;;
1208   --disable-attr) attr="no"
1209   ;;
1210   --enable-attr) attr="yes"
1211   ;;
1212   --disable-membarrier) membarrier="no"
1213   ;;
1214   --enable-membarrier) membarrier="yes"
1215   ;;
1216   --disable-blobs) blobs="false"
1217   ;;
1218   --with-pkgversion=*) pkgversion="$optarg"
1219   ;;
1220   --with-coroutine=*) coroutine="$optarg"
1221   ;;
1222   --disable-coroutine-pool) coroutine_pool="no"
1223   ;;
1224   --enable-coroutine-pool) coroutine_pool="yes"
1225   ;;
1226   --enable-debug-stack-usage) debug_stack_usage="yes"
1227   ;;
1228   --enable-crypto-afalg) crypto_afalg="yes"
1229   ;;
1230   --disable-crypto-afalg) crypto_afalg="no"
1231   ;;
1232   --disable-docs) docs="disabled"
1233   ;;
1234   --enable-docs) docs="enabled"
1235   ;;
1236   --disable-vhost-net) vhost_net="no"
1237   ;;
1238   --enable-vhost-net) vhost_net="yes"
1239   ;;
1240   --disable-vhost-crypto) vhost_crypto="no"
1241   ;;
1242   --enable-vhost-crypto) vhost_crypto="yes"
1243   ;;
1244   --disable-vhost-scsi) vhost_scsi="no"
1245   ;;
1246   --enable-vhost-scsi) vhost_scsi="yes"
1247   ;;
1248   --disable-vhost-vsock) vhost_vsock="no"
1249   ;;
1250   --enable-vhost-vsock) vhost_vsock="yes"
1251   ;;
1252   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1253   ;;
1254   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1255   ;;
1256   --disable-vhost-user-fs) vhost_user_fs="no"
1257   ;;
1258   --enable-vhost-user-fs) vhost_user_fs="yes"
1259   ;;
1260   --disable-opengl) opengl="no"
1261   ;;
1262   --enable-opengl) opengl="yes"
1263   ;;
1264   --disable-rbd) rbd="no"
1265   ;;
1266   --enable-rbd) rbd="yes"
1267   ;;
1268   --disable-xfsctl) xfs="no"
1269   ;;
1270   --enable-xfsctl) xfs="yes"
1271   ;;
1272   --disable-smartcard) smartcard="no"
1273   ;;
1274   --enable-smartcard) smartcard="yes"
1275   ;;
1276   --disable-u2f) u2f="disabled"
1277   ;;
1278   --enable-u2f) u2f="enabled"
1279   ;;
1280   --disable-libusb) libusb="no"
1281   ;;
1282   --enable-libusb) libusb="yes"
1283   ;;
1284   --disable-usb-redir) usb_redir="no"
1285   ;;
1286   --enable-usb-redir) usb_redir="yes"
1287   ;;
1288   --disable-zlib-test)
1289   ;;
1290   --disable-lzo) lzo="no"
1291   ;;
1292   --enable-lzo) lzo="yes"
1293   ;;
1294   --disable-snappy) snappy="no"
1295   ;;
1296   --enable-snappy) snappy="yes"
1297   ;;
1298   --disable-bzip2) bzip2="no"
1299   ;;
1300   --enable-bzip2) bzip2="yes"
1301   ;;
1302   --enable-lzfse) lzfse="yes"
1303   ;;
1304   --disable-lzfse) lzfse="no"
1305   ;;
1306   --disable-zstd) zstd="no"
1307   ;;
1308   --enable-zstd) zstd="yes"
1309   ;;
1310   --enable-guest-agent) guest_agent="yes"
1311   ;;
1312   --disable-guest-agent) guest_agent="no"
1313   ;;
1314   --enable-guest-agent-msi) guest_agent_msi="yes"
1315   ;;
1316   --disable-guest-agent-msi) guest_agent_msi="no"
1317   ;;
1318   --with-vss-sdk) vss_win32_sdk=""
1319   ;;
1320   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1321   ;;
1322   --without-vss-sdk) vss_win32_sdk="no"
1323   ;;
1324   --with-win-sdk) win_sdk=""
1325   ;;
1326   --with-win-sdk=*) win_sdk="$optarg"
1327   ;;
1328   --without-win-sdk) win_sdk="no"
1329   ;;
1330   --enable-tools) want_tools="yes"
1331   ;;
1332   --disable-tools) want_tools="no"
1333   ;;
1334   --enable-seccomp) seccomp="yes"
1335   ;;
1336   --disable-seccomp) seccomp="no"
1337   ;;
1338   --disable-glusterfs) glusterfs="no"
1339   ;;
1340   --disable-avx2) avx2_opt="no"
1341   ;;
1342   --enable-avx2) avx2_opt="yes"
1343   ;;
1344   --disable-avx512f) avx512f_opt="no"
1345   ;;
1346   --enable-avx512f) avx512f_opt="yes"
1347   ;;
1348
1349   --enable-glusterfs) glusterfs="yes"
1350   ;;
1351   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1352       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1353   ;;
1354   --enable-vhdx|--disable-vhdx)
1355       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1356   ;;
1357   --enable-uuid|--disable-uuid)
1358       echo "$0: $opt is obsolete, UUID support is always built" >&2
1359   ;;
1360   --disable-gtk) gtk="no"
1361   ;;
1362   --enable-gtk) gtk="yes"
1363   ;;
1364   --tls-priority=*) tls_priority="$optarg"
1365   ;;
1366   --disable-gnutls) gnutls="no"
1367   ;;
1368   --enable-gnutls) gnutls="yes"
1369   ;;
1370   --disable-nettle) nettle="no"
1371   ;;
1372   --enable-nettle) nettle="yes"
1373   ;;
1374   --disable-gcrypt) gcrypt="no"
1375   ;;
1376   --enable-gcrypt) gcrypt="yes"
1377   ;;
1378   --disable-auth-pam) auth_pam="no"
1379   ;;
1380   --enable-auth-pam) auth_pam="yes"
1381   ;;
1382   --enable-rdma) rdma="yes"
1383   ;;
1384   --disable-rdma) rdma="no"
1385   ;;
1386   --enable-pvrdma) pvrdma="yes"
1387   ;;
1388   --disable-pvrdma) pvrdma="no"
1389   ;;
1390   --disable-vte) vte="no"
1391   ;;
1392   --enable-vte) vte="yes"
1393   ;;
1394   --disable-virglrenderer) virglrenderer="no"
1395   ;;
1396   --enable-virglrenderer) virglrenderer="yes"
1397   ;;
1398   --disable-tpm) tpm="no"
1399   ;;
1400   --enable-tpm) tpm="yes"
1401   ;;
1402   --disable-libssh) libssh="no"
1403   ;;
1404   --enable-libssh) libssh="yes"
1405   ;;
1406   --disable-live-block-migration) live_block_migration="no"
1407   ;;
1408   --enable-live-block-migration) live_block_migration="yes"
1409   ;;
1410   --disable-numa) numa="no"
1411   ;;
1412   --enable-numa) numa="yes"
1413   ;;
1414   --disable-libxml2) libxml2="no"
1415   ;;
1416   --enable-libxml2) libxml2="yes"
1417   ;;
1418   --disable-tcmalloc) tcmalloc="no"
1419   ;;
1420   --enable-tcmalloc) tcmalloc="yes"
1421   ;;
1422   --disable-jemalloc) jemalloc="no"
1423   ;;
1424   --enable-jemalloc) jemalloc="yes"
1425   ;;
1426   --disable-replication) replication="no"
1427   ;;
1428   --enable-replication) replication="yes"
1429   ;;
1430   --disable-bochs) bochs="no"
1431   ;;
1432   --enable-bochs) bochs="yes"
1433   ;;
1434   --disable-cloop) cloop="no"
1435   ;;
1436   --enable-cloop) cloop="yes"
1437   ;;
1438   --disable-dmg) dmg="no"
1439   ;;
1440   --enable-dmg) dmg="yes"
1441   ;;
1442   --disable-qcow1) qcow1="no"
1443   ;;
1444   --enable-qcow1) qcow1="yes"
1445   ;;
1446   --disable-vdi) vdi="no"
1447   ;;
1448   --enable-vdi) vdi="yes"
1449   ;;
1450   --disable-vvfat) vvfat="no"
1451   ;;
1452   --enable-vvfat) vvfat="yes"
1453   ;;
1454   --disable-qed) qed="no"
1455   ;;
1456   --enable-qed) qed="yes"
1457   ;;
1458   --disable-parallels) parallels="no"
1459   ;;
1460   --enable-parallels) parallels="yes"
1461   ;;
1462   --disable-sheepdog) sheepdog="no"
1463   ;;
1464   --enable-sheepdog) sheepdog="yes"
1465   ;;
1466   --disable-vhost-user) vhost_user="no"
1467   ;;
1468   --enable-vhost-user) vhost_user="yes"
1469   ;;
1470   --disable-vhost-vdpa) vhost_vdpa="no"
1471   ;;
1472   --enable-vhost-vdpa) vhost_vdpa="yes"
1473   ;;
1474   --disable-vhost-kernel) vhost_kernel="no"
1475   ;;
1476   --enable-vhost-kernel) vhost_kernel="yes"
1477   ;;
1478   --disable-capstone) capstone="disabled"
1479   ;;
1480   --enable-capstone) capstone="enabled"
1481   ;;
1482   --enable-capstone=git) capstone="internal"
1483   ;;
1484   --enable-capstone=system) capstone="system"
1485   ;;
1486   --with-git=*) git="$optarg"
1487   ;;
1488   --enable-git-update) git_update=yes
1489   ;;
1490   --disable-git-update) git_update=no
1491   ;;
1492   --enable-debug-mutex) debug_mutex=yes
1493   ;;
1494   --disable-debug-mutex) debug_mutex=no
1495   ;;
1496   --enable-libpmem) libpmem=yes
1497   ;;
1498   --disable-libpmem) libpmem=no
1499   ;;
1500   --enable-xkbcommon) xkbcommon="enabled"
1501   ;;
1502   --disable-xkbcommon) xkbcommon="disabled"
1503   ;;
1504   --enable-plugins) plugins="yes"
1505   ;;
1506   --disable-plugins) plugins="no"
1507   ;;
1508   --enable-containers) use_containers="yes"
1509   ;;
1510   --disable-containers) use_containers="no"
1511   ;;
1512   --enable-fuzzing) fuzzing=yes
1513   ;;
1514   --disable-fuzzing) fuzzing=no
1515   ;;
1516   --gdb=*) gdb_bin="$optarg"
1517   ;;
1518   --enable-rng-none) rng_none=yes
1519   ;;
1520   --disable-rng-none) rng_none=no
1521   ;;
1522   --enable-keyring) secret_keyring="yes"
1523   ;;
1524   --disable-keyring) secret_keyring="no"
1525   ;;
1526   --enable-libdaxctl) libdaxctl=yes
1527   ;;
1528   --disable-libdaxctl) libdaxctl=no
1529   ;;
1530   --enable-fuse) fuse="enabled"
1531   ;;
1532   --disable-fuse) fuse="disabled"
1533   ;;
1534   --enable-fuse-lseek) fuse_lseek="enabled"
1535   ;;
1536   --disable-fuse-lseek) fuse_lseek="disabled"
1537   ;;
1538   *)
1539       echo "ERROR: unknown option $opt"
1540       echo "Try '$0 --help' for more information"
1541       exit 1
1542   ;;
1543   esac
1544 done
1545
1546 libdir="${libdir:-$prefix/lib}"
1547 libexecdir="${libexecdir:-$prefix/libexec}"
1548 includedir="${includedir:-$prefix/include}"
1549
1550 if test "$mingw32" = "yes" ; then
1551     mandir="$prefix"
1552     datadir="$prefix"
1553     docdir="$prefix"
1554     bindir="$prefix"
1555     sysconfdir="$prefix"
1556     local_statedir="$prefix"
1557 else
1558     mandir="${mandir:-$prefix/share/man}"
1559     datadir="${datadir:-$prefix/share}"
1560     docdir="${docdir:-$prefix/share/doc}"
1561     bindir="${bindir:-$prefix/bin}"
1562     sysconfdir="${sysconfdir:-$prefix/etc}"
1563     local_statedir="${local_statedir:-$prefix/var}"
1564 fi
1565 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1566 localedir="${localedir:-$datadir/locale}"
1567
1568 case "$cpu" in
1569     ppc)
1570            CPU_CFLAGS="-m32"
1571            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1572            ;;
1573     ppc64)
1574            CPU_CFLAGS="-m64"
1575            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1576            ;;
1577     sparc)
1578            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1579            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1580            ;;
1581     sparc64)
1582            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1583            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1584            ;;
1585     s390)
1586            CPU_CFLAGS="-m31"
1587            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1588            ;;
1589     s390x)
1590            CPU_CFLAGS="-m64"
1591            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1592            ;;
1593     i386)
1594            CPU_CFLAGS="-m32"
1595            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1596            ;;
1597     x86_64)
1598            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1599            # If we truly care, we should simply detect this case at
1600            # runtime and generate the fallback to serial emulation.
1601            CPU_CFLAGS="-m64 -mcx16"
1602            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1603            ;;
1604     x32)
1605            CPU_CFLAGS="-mx32"
1606            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1607            ;;
1608     # No special flags required for other host CPUs
1609 esac
1610
1611 eval "cross_cc_${cpu}=\$host_cc"
1612 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1613 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1614
1615 # For user-mode emulation the host arch has to be one we explicitly
1616 # support, even if we're using TCI.
1617 if [ "$ARCH" = "unknown" ]; then
1618   bsd_user="no"
1619   linux_user="no"
1620 fi
1621
1622 default_target_list=""
1623 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
1624 deprecated_features=""
1625 mak_wilds=""
1626
1627 if [ "$softmmu" = "yes" ]; then
1628     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1629 fi
1630 if [ "$linux_user" = "yes" ]; then
1631     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1632 fi
1633 if [ "$bsd_user" = "yes" ]; then
1634     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1635 fi
1636
1637 # If the user doesn't explicitly specify a deprecated target we will
1638 # skip it.
1639 if test -z "$target_list"; then
1640     if test -z "$target_list_exclude"; then
1641         target_list_exclude="$deprecated_targets_list"
1642     else
1643         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1644     fi
1645 fi
1646
1647 for config in $mak_wilds; do
1648     target="$(basename "$config" .mak)"
1649     if echo "$target_list_exclude" | grep -vq "$target"; then
1650         default_target_list="${default_target_list} $target"
1651     fi
1652 done
1653
1654 # Enumerate public trace backends for --help output
1655 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1656
1657 if test x"$show_help" = x"yes" ; then
1658 cat << EOF
1659
1660 Usage: configure [options]
1661 Options: [defaults in brackets after descriptions]
1662
1663 Standard options:
1664   --help                   print this message
1665   --prefix=PREFIX          install in PREFIX [$prefix]
1666   --interp-prefix=PREFIX   where to find shared libraries, etc.
1667                            use %M for cpu name [$interp_prefix]
1668   --target-list=LIST       set target list (default: build all non-deprecated)
1669 $(echo Available targets: $default_target_list | \
1670   fold -s -w 53 | sed -e 's/^/                           /')
1671 $(echo Deprecated targets: $deprecated_targets_list | \
1672   fold -s -w 53 | sed -e 's/^/                           /')
1673   --target-list-exclude=LIST exclude a set of targets from the default target-list
1674
1675 Advanced options (experts only):
1676   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1677   --cc=CC                  use C compiler CC [$cc]
1678   --iasl=IASL              use ACPI compiler IASL [$iasl]
1679   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1680                            build time
1681   --cxx=CXX                use C++ compiler CXX [$cxx]
1682   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1683   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1684   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1685   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1686   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1687   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1688   --make=MAKE              use specified make [$make]
1689   --python=PYTHON          use specified python [$python]
1690   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1691   --meson=MESON            use specified meson [$meson]
1692   --ninja=NINJA            use specified ninja [$ninja]
1693   --smbd=SMBD              use specified smbd [$smbd]
1694   --with-git=GIT           use specified git [$git]
1695   --static                 enable static build [$static]
1696   --mandir=PATH            install man pages in PATH
1697   --datadir=PATH           install firmware in PATH/$qemu_suffix
1698   --localedir=PATH         install translation in PATH/$qemu_suffix
1699   --docdir=PATH            install documentation in PATH/$qemu_suffix
1700   --bindir=PATH            install binaries in PATH
1701   --libdir=PATH            install libraries in PATH
1702   --libexecdir=PATH        install helper binaries in PATH
1703   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1704   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1705   --firmwarepath=PATH      search PATH for firmware files
1706   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1707   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1708   --with-pkgversion=VERS   use specified string as sub-version of the package
1709   --enable-debug           enable common debug build options
1710   --enable-sanitizers      enable default sanitizers
1711   --enable-tsan            enable thread sanitizer
1712   --disable-strip          disable stripping binaries
1713   --disable-werror         disable compilation abort on warning
1714   --disable-stack-protector disable compiler-provided stack protection
1715   --audio-drv-list=LIST    set audio drivers list:
1716                            Available drivers: $audio_possible_drivers
1717   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1718   --block-drv-rw-whitelist=L
1719                            set block driver read-write whitelist
1720                            (affects only QEMU, not qemu-img)
1721   --block-drv-ro-whitelist=L
1722                            set block driver read-only whitelist
1723                            (affects only QEMU, not qemu-img)
1724   --enable-trace-backends=B Set trace backend
1725                            Available backends: $trace_backend_list
1726   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1727                            Default:trace-<pid>
1728   --disable-slirp          disable SLIRP userspace network connectivity
1729   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1730   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1731   --oss-lib                path to OSS library
1732   --cpu=CPU                Build for host CPU [$cpu]
1733   --with-coroutine=BACKEND coroutine backend. Supported options:
1734                            ucontext, sigaltstack, windows
1735   --enable-gcov            enable test coverage analysis with gcov
1736   --disable-blobs          disable installing provided firmware blobs
1737   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1738   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1739   --tls-priority           default TLS protocol/cipher priority string
1740   --enable-gprof           QEMU profiling with gprof
1741   --enable-profiler        profiler support
1742   --enable-debug-stack-usage
1743                            track the maximum stack usage of stacks created by qemu_alloc_stack
1744   --enable-plugins
1745                            enable plugins via shared library loading
1746   --disable-containers     don't use containers for cross-building
1747   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1748
1749 Optional features, enabled with --enable-FEATURE and
1750 disabled with --disable-FEATURE, default is enabled if available:
1751
1752   system          all system emulation targets
1753   user            supported user emulation targets
1754   linux-user      all linux usermode emulation targets
1755   bsd-user        all BSD usermode emulation targets
1756   docs            build documentation
1757   guest-agent     build the QEMU Guest Agent
1758   guest-agent-msi build guest agent Windows MSI installation package
1759   pie             Position Independent Executables
1760   modules         modules support (non-Windows)
1761   module-upgrades try to load modules from alternate paths for upgrades
1762   debug-tcg       TCG debugging (default is disabled)
1763   debug-info      debugging information
1764   sparse          sparse checker
1765   safe-stack      SafeStack Stack Smash Protection. Depends on
1766                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1767
1768   gnutls          GNUTLS cryptography support
1769   nettle          nettle cryptography support
1770   gcrypt          libgcrypt cryptography support
1771   auth-pam        PAM access control
1772   sdl             SDL UI
1773   sdl-image       SDL Image support for icons
1774   gtk             gtk UI
1775   vte             vte support for the gtk UI
1776   curses          curses UI
1777   iconv           font glyph conversion support
1778   vnc             VNC UI support
1779   vnc-sasl        SASL encryption for VNC server
1780   vnc-jpeg        JPEG lossy compression for VNC server
1781   vnc-png         PNG compression for VNC server
1782   cocoa           Cocoa UI (Mac OS X only)
1783   virtfs          VirtFS
1784   virtiofsd       build virtiofs daemon (virtiofsd)
1785   libudev         Use libudev to enumerate host devices
1786   mpath           Multipath persistent reservation passthrough
1787   xen             xen backend driver support
1788   xen-pci-passthrough    PCI passthrough support for Xen
1789   brlapi          BrlAPI (Braile)
1790   curl            curl connectivity
1791   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1792   fdt             fdt device tree
1793   kvm             KVM acceleration support
1794   hax             HAX acceleration support
1795   hvf             Hypervisor.framework acceleration support
1796   whpx            Windows Hypervisor Platform acceleration support
1797   rdma            Enable RDMA-based migration
1798   pvrdma          Enable PVRDMA support
1799   vde             support for vde network
1800   netmap          support for netmap network
1801   linux-aio       Linux AIO support
1802   linux-io-uring  Linux io_uring support
1803   cap-ng          libcap-ng support
1804   attr            attr and xattr support
1805   vhost-net       vhost-net kernel acceleration support
1806   vhost-vsock     virtio sockets device support
1807   vhost-scsi      vhost-scsi kernel target support
1808   vhost-crypto    vhost-user-crypto backend support
1809   vhost-kernel    vhost kernel backend support
1810   vhost-user      vhost-user backend support
1811   vhost-user-blk-server    vhost-user-blk server support
1812   vhost-vdpa      vhost-vdpa kernel backend support
1813   spice           spice
1814   rbd             rados block device (rbd)
1815   libiscsi        iscsi support
1816   libnfs          nfs support
1817   smartcard       smartcard support (libcacard)
1818   u2f             U2F support (u2f-emu)
1819   libusb          libusb (for usb passthrough)
1820   live-block-migration   Block migration in the main migration stream
1821   usb-redir       usb network redirection support
1822   lzo             support of lzo compression library
1823   snappy          support of snappy compression library
1824   bzip2           support of bzip2 compression library
1825                   (for reading bzip2-compressed dmg images)
1826   lzfse           support of lzfse compression library
1827                   (for reading lzfse-compressed dmg images)
1828   zstd            support for zstd compression library
1829                   (for migration compression and qcow2 cluster compression)
1830   seccomp         seccomp support
1831   coroutine-pool  coroutine freelist (better performance)
1832   glusterfs       GlusterFS backend
1833   tpm             TPM support
1834   libssh          ssh block device support
1835   numa            libnuma support
1836   libxml2         for Parallels image format
1837   tcmalloc        tcmalloc support
1838   jemalloc        jemalloc support
1839   avx2            AVX2 optimization support
1840   avx512f         AVX512F optimization support
1841   replication     replication support
1842   opengl          opengl support
1843   virglrenderer   virgl rendering support
1844   xfsctl          xfsctl support
1845   qom-cast-debug  cast debugging support
1846   tools           build qemu-io, qemu-nbd and qemu-img tools
1847   bochs           bochs image format support
1848   cloop           cloop image format support
1849   dmg             dmg image format support
1850   qcow1           qcow v1 image format support
1851   vdi             vdi image format support
1852   vvfat           vvfat image format support
1853   qed             qed image format support
1854   parallels       parallels image format support
1855   sheepdog        sheepdog block driver support (deprecated)
1856   crypto-afalg    Linux AF_ALG crypto backend driver
1857   capstone        capstone disassembler support
1858   debug-mutex     mutex debugging support
1859   libpmem         libpmem support
1860   xkbcommon       xkbcommon support
1861   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1862   libdaxctl       libdaxctl support
1863   fuse            FUSE block device export
1864   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
1865
1866 NOTE: The object files are built at the place where configure is launched
1867 EOF
1868 exit 0
1869 fi
1870
1871 # Remove old dependency files to make sure that they get properly regenerated
1872 rm -f */config-devices.mak.d
1873
1874 if test -z "$python"
1875 then
1876     error_exit "Python not found. Use --python=/path/to/python"
1877 fi
1878 if ! has "$make"
1879 then
1880     error_exit "GNU make ($make) not found"
1881 fi
1882
1883 # Note that if the Python conditional here evaluates True we will exit
1884 # with status 1 which is a shell 'false' value.
1885 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1886   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1887       "Use --python=/path/to/python to specify a supported Python."
1888 fi
1889
1890 # Preserve python version since some functionality is dependent on it
1891 python_version=$($python -c 'import sys; print("%d.%d.%d" % (sys.version_info[0], sys.version_info[1], sys.version_info[2]))' 2>/dev/null)
1892
1893 # Suppress writing compiled files
1894 python="$python -B"
1895
1896 if test -z "$meson"; then
1897     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1898         meson=meson
1899     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1900         meson=git
1901     elif test -e "${source_path}/meson/meson.py" ; then
1902         meson=internal
1903     else
1904         if test "$explicit_python" = yes; then
1905             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1906         else
1907             error_exit "Meson not found.  Use --meson=/path/to/meson"
1908         fi
1909     fi
1910 else
1911     # Meson uses its own Python interpreter to invoke other Python scripts,
1912     # but the user wants to use the one they specified with --python.
1913     #
1914     # We do not want to override the distro Python interpreter (and sometimes
1915     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1916     # just require --meson=git|internal together with --python.
1917     if test "$explicit_python" = yes; then
1918         case "$meson" in
1919             git | internal) ;;
1920             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1921         esac
1922     fi
1923 fi
1924
1925 if test "$meson" = git; then
1926     git_submodules="${git_submodules} meson"
1927 fi
1928
1929 case "$meson" in
1930     git | internal)
1931         meson="$python ${source_path}/meson/meson.py"
1932         ;;
1933     *) meson=$(command -v "$meson") ;;
1934 esac
1935
1936 # Probe for ninja
1937
1938 if test -z "$ninja"; then
1939     for c in ninja ninja-build samu; do
1940         if has $c; then
1941             ninja=$(command -v "$c")
1942             break
1943         fi
1944     done
1945     if test -z "$ninja"; then
1946       error_exit "Cannot find Ninja"
1947     fi
1948 fi
1949
1950 # Check that the C compiler works. Doing this here before testing
1951 # the host CPU ensures that we had a valid CC to autodetect the
1952 # $cpu var (and we should bail right here if that's not the case).
1953 # It also allows the help message to be printed without a CC.
1954 write_c_skeleton;
1955 if compile_object ; then
1956   : C compiler works ok
1957 else
1958     error_exit "\"$cc\" either does not exist or does not work"
1959 fi
1960 if ! compile_prog ; then
1961     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1962 fi
1963
1964 # Consult white-list to determine whether to enable werror
1965 # by default.  Only enable by default for git builds
1966 if test -z "$werror" ; then
1967     if test -e "$source_path/.git" && \
1968         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1969         werror="yes"
1970     else
1971         werror="no"
1972     fi
1973 fi
1974
1975 if test "$bogus_os" = "yes"; then
1976     # Now that we know that we're not printing the help and that
1977     # the compiler works (so the results of the check_defines we used
1978     # to identify the OS are reliable), if we didn't recognize the
1979     # host OS we should stop now.
1980     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1981 fi
1982
1983 # Check whether the compiler matches our minimum requirements:
1984 cat > $TMPC << EOF
1985 #if defined(__clang_major__) && defined(__clang_minor__)
1986 # ifdef __apple_build_version__
1987 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
1988 #   error You need at least XCode Clang v5.1 to compile QEMU
1989 #  endif
1990 # else
1991 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
1992 #   error You need at least Clang v3.4 to compile QEMU
1993 #  endif
1994 # endif
1995 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1996 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
1997 #  error You need at least GCC v4.8 to compile QEMU
1998 # endif
1999 #else
2000 # error You either need GCC or Clang to compiler QEMU
2001 #endif
2002 int main (void) { return 0; }
2003 EOF
2004 if ! compile_prog "" "" ; then
2005     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2006 fi
2007
2008 # Accumulate -Wfoo and -Wno-bar separately.
2009 # We will list all of the enable flags first, and the disable flags second.
2010 # Note that we do not add -Werror, because that would enable it for all
2011 # configure tests. If a configure test failed due to -Werror this would
2012 # just silently disable some features, so it's too error prone.
2013
2014 warn_flags=
2015 add_to warn_flags -Wold-style-declaration
2016 add_to warn_flags -Wold-style-definition
2017 add_to warn_flags -Wtype-limits
2018 add_to warn_flags -Wformat-security
2019 add_to warn_flags -Wformat-y2k
2020 add_to warn_flags -Winit-self
2021 add_to warn_flags -Wignored-qualifiers
2022 add_to warn_flags -Wempty-body
2023 add_to warn_flags -Wnested-externs
2024 add_to warn_flags -Wendif-labels
2025 add_to warn_flags -Wexpansion-to-defined
2026 add_to warn_flags -Wimplicit-fallthrough=2
2027
2028 nowarn_flags=
2029 add_to nowarn_flags -Wno-initializer-overrides
2030 add_to nowarn_flags -Wno-missing-include-dirs
2031 add_to nowarn_flags -Wno-shift-negative-value
2032 add_to nowarn_flags -Wno-string-plus-int
2033 add_to nowarn_flags -Wno-typedef-redefinition
2034 add_to nowarn_flags -Wno-tautological-type-limit-compare
2035 add_to nowarn_flags -Wno-psabi
2036
2037 gcc_flags="$warn_flags $nowarn_flags"
2038
2039 cc_has_warning_flag() {
2040     write_c_skeleton;
2041
2042     # Use the positive sense of the flag when testing for -Wno-wombat
2043     # support (gcc will happily accept the -Wno- form of unknown
2044     # warning options).
2045     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2046     compile_prog "-Werror $optflag" ""
2047 }
2048
2049 for flag in $gcc_flags; do
2050     if cc_has_warning_flag $flag ; then
2051         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2052     fi
2053 done
2054
2055 if test "$stack_protector" != "no"; then
2056   cat > $TMPC << EOF
2057 int main(int argc, char *argv[])
2058 {
2059     char arr[64], *p = arr, *c = argv[0];
2060     while (*c) {
2061         *p++ = *c++;
2062     }
2063     return 0;
2064 }
2065 EOF
2066   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2067   sp_on=0
2068   for flag in $gcc_flags; do
2069     # We need to check both a compile and a link, since some compiler
2070     # setups fail only on a .c->.o compile and some only at link time
2071     if compile_object "-Werror $flag" &&
2072        compile_prog "-Werror $flag" ""; then
2073       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2074       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2075       sp_on=1
2076       break
2077     fi
2078   done
2079   if test "$stack_protector" = yes; then
2080     if test $sp_on = 0; then
2081       error_exit "Stack protector not supported"
2082     fi
2083   fi
2084 fi
2085
2086 # Disable -Wmissing-braces on older compilers that warn even for
2087 # the "universal" C zero initializer {0}.
2088 cat > $TMPC << EOF
2089 struct {
2090   int a[2];
2091 } x = {0};
2092 EOF
2093 if compile_object "-Werror" "" ; then
2094   :
2095 else
2096   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2097 fi
2098
2099 # Our module code doesn't support Windows
2100 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2101   error_exit "Modules are not available for Windows"
2102 fi
2103
2104 # module_upgrades is only reasonable if modules are enabled
2105 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2106   error_exit "Can't enable module-upgrades as Modules are not enabled"
2107 fi
2108
2109 # Static linking is not possible with modules or PIE
2110 if test "$static" = "yes" ; then
2111   if test "$modules" = "yes" ; then
2112     error_exit "static and modules are mutually incompatible"
2113   fi
2114 fi
2115
2116 # Unconditional check for compiler __thread support
2117   cat > $TMPC << EOF
2118 static __thread int tls_var;
2119 int main(void) { return tls_var; }
2120 EOF
2121
2122 if ! compile_prog "-Werror" "" ; then
2123     error_exit "Your compiler does not support the __thread specifier for " \
2124         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2125 fi
2126
2127 cat > $TMPC << EOF
2128
2129 #ifdef __linux__
2130 #  define THREAD __thread
2131 #else
2132 #  define THREAD
2133 #endif
2134 static THREAD int tls_var;
2135 int main(void) { return tls_var; }
2136 EOF
2137
2138 # Check we support --no-pie first; we will need this for building ROMs.
2139 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2140   CFLAGS_NOPIE="-fno-pie"
2141 fi
2142
2143 if test "$static" = "yes"; then
2144   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2145     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2146     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2147     pie="yes"
2148   elif test "$pie" = "yes"; then
2149     error_exit "-static-pie not available due to missing toolchain support"
2150   else
2151     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2152     pie="no"
2153   fi
2154 elif test "$pie" = "no"; then
2155   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2156 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2157   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2158   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2159   pie="yes"
2160 elif test "$pie" = "yes"; then
2161   error_exit "PIE not available due to missing toolchain support"
2162 else
2163   echo "Disabling PIE due to missing toolchain support"
2164   pie="no"
2165 fi
2166
2167 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2168 # The combination is known as "full relro", because .got.plt is read-only too.
2169 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2170   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2171 fi
2172
2173 ##########################################
2174 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2175 # use i686 as default anyway, but for those that don't, an explicit
2176 # specification is necessary
2177
2178 if test "$cpu" = "i386"; then
2179   cat > $TMPC << EOF
2180 static int sfaa(int *ptr)
2181 {
2182   return __sync_fetch_and_and(ptr, 0);
2183 }
2184
2185 int main(void)
2186 {
2187   int val = 42;
2188   val = __sync_val_compare_and_swap(&val, 0, 1);
2189   sfaa(&val);
2190   return val;
2191 }
2192 EOF
2193   if ! compile_prog "" "" ; then
2194     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2195   fi
2196 fi
2197
2198 #########################################
2199 # Solaris specific configure tool chain decisions
2200
2201 if test "$solaris" = "yes" ; then
2202   if has ar; then
2203     :
2204   else
2205     if test -f /usr/ccs/bin/ar ; then
2206       error_exit "No path includes ar" \
2207           "Add /usr/ccs/bin to your path and rerun configure"
2208     fi
2209     error_exit "No path includes ar"
2210   fi
2211 fi
2212
2213 if test -z "${target_list+xxx}" ; then
2214     default_targets=yes
2215     for target in $default_target_list; do
2216         target_list="$target_list $target"
2217     done
2218     target_list="${target_list# }"
2219 else
2220     default_targets=no
2221     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2222     for target in $target_list; do
2223         # Check that we recognised the target name; this allows a more
2224         # friendly error message than if we let it fall through.
2225         case " $default_target_list " in
2226             *" $target "*)
2227                 ;;
2228             *)
2229                 error_exit "Unknown target name '$target'"
2230                 ;;
2231         esac
2232     done
2233 fi
2234
2235 for target in $target_list; do
2236     # if a deprecated target is enabled we note it here
2237     if echo "$deprecated_targets_list" | grep -q "$target"; then
2238         add_to deprecated_features $target
2239     fi
2240 done
2241
2242 # see if system emulation was really requested
2243 case " $target_list " in
2244   *"-softmmu "*) softmmu=yes
2245   ;;
2246   *) softmmu=no
2247   ;;
2248 esac
2249
2250 feature_not_found() {
2251   feature=$1
2252   remedy=$2
2253
2254   error_exit "User requested feature $feature" \
2255       "configure was not able to find it." \
2256       "$remedy"
2257 }
2258
2259 # ---
2260 # big/little endian test
2261 cat > $TMPC << EOF
2262 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2263 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2264 extern int foo(short *, short *);
2265 int main(int argc, char *argv[]) {
2266     return foo(big_endian, little_endian);
2267 }
2268 EOF
2269
2270 if compile_object ; then
2271     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2272         bigendian="yes"
2273     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2274         bigendian="no"
2275     else
2276         echo big/little test failed
2277     fi
2278 else
2279     echo big/little test failed
2280 fi
2281
2282 ##########################################
2283 # system tools
2284 if test -z "$want_tools"; then
2285     if test "$softmmu" = "no"; then
2286         want_tools=no
2287     else
2288         want_tools=yes
2289     fi
2290 fi
2291
2292 ##########################################
2293 # cocoa implies not SDL or GTK
2294 # (the cocoa UI code currently assumes it is always the active UI
2295 # and doesn't interact well with other UI frontend code)
2296 if test "$cocoa" = "enabled"; then
2297     if test "$sdl" = "enabled"; then
2298         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2299     fi
2300     if test "$gtk" = "yes"; then
2301         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2302     fi
2303     gtk=no
2304     sdl=disabled
2305 fi
2306
2307 # Some versions of Mac OS X incorrectly define SIZE_MAX
2308 cat > $TMPC << EOF
2309 #include <stdint.h>
2310 #include <stdio.h>
2311 int main(int argc, char *argv[]) {
2312     return printf("%zu", SIZE_MAX);
2313 }
2314 EOF
2315 have_broken_size_max=no
2316 if ! compile_object -Werror ; then
2317     have_broken_size_max=yes
2318 fi
2319
2320 ##########################################
2321 # L2TPV3 probe
2322
2323 cat > $TMPC <<EOF
2324 #include <sys/socket.h>
2325 #include <linux/ip.h>
2326 int main(void) { return sizeof(struct mmsghdr); }
2327 EOF
2328 if compile_prog "" "" ; then
2329   l2tpv3=yes
2330 else
2331   l2tpv3=no
2332 fi
2333
2334 cat > $TMPC <<EOF
2335 #include <sys/mman.h>
2336 int main(int argc, char *argv[]) {
2337     return mlockall(MCL_FUTURE);
2338 }
2339 EOF
2340 if compile_prog "" "" ; then
2341   have_mlockall=yes
2342 else
2343   have_mlockall=no
2344 fi
2345
2346 #########################################
2347 # vhost interdependencies and host support
2348
2349 # vhost backends
2350 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2351   error_exit "vhost-user is only available on Linux"
2352 fi
2353 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2354 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2355   error_exit "vhost-vdpa is only available on Linux"
2356 fi
2357 test "$vhost_kernel" = "" && vhost_kernel=$linux
2358 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2359   error_exit "vhost-kernel is only available on Linux"
2360 fi
2361
2362 # vhost-kernel devices
2363 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2364 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2365   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2366 fi
2367 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2368 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2369   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2370 fi
2371
2372 # vhost-user backends
2373 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2374 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2375   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2376 fi
2377 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2378 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2379   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2380 fi
2381 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2382 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2383   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2384 fi
2385 #vhost-vdpa backends
2386 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2387 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2388   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2389 fi
2390
2391 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2392 if test "$vhost_net" = ""; then
2393   test "$vhost_net_user" = "yes" && vhost_net=yes
2394   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2395   test "$vhost_kernel" = "yes" && vhost_net=yes
2396 fi
2397
2398 ##########################################
2399 # pkg-config probe
2400
2401 if ! has "$pkg_config_exe"; then
2402   error_exit "pkg-config binary '$pkg_config_exe' not found"
2403 fi
2404
2405 ##########################################
2406 # NPTL probe
2407
2408 if test "$linux_user" = "yes"; then
2409   cat > $TMPC <<EOF
2410 #include <sched.h>
2411 #include <linux/futex.h>
2412 int main(void) {
2413 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2414 #error bork
2415 #endif
2416   return 0;
2417 }
2418 EOF
2419   if ! compile_object ; then
2420     feature_not_found "nptl" "Install glibc and linux kernel headers."
2421   fi
2422 fi
2423
2424 ##########################################
2425 # lzo check
2426
2427 if test "$lzo" != "no" ; then
2428     cat > $TMPC << EOF
2429 #include <lzo/lzo1x.h>
2430 int main(void) { lzo_version(); return 0; }
2431 EOF
2432     if compile_prog "" "-llzo2" ; then
2433         lzo_libs="-llzo2"
2434         lzo="yes"
2435     else
2436         if test "$lzo" = "yes"; then
2437             feature_not_found "liblzo2" "Install liblzo2 devel"
2438         fi
2439         lzo="no"
2440     fi
2441 fi
2442
2443 ##########################################
2444 # snappy check
2445
2446 if test "$snappy" != "no" ; then
2447     cat > $TMPC << EOF
2448 #include <snappy-c.h>
2449 int main(void) { snappy_max_compressed_length(4096); return 0; }
2450 EOF
2451     if compile_prog "" "-lsnappy" ; then
2452         snappy_libs='-lsnappy'
2453         snappy="yes"
2454     else
2455         if test "$snappy" = "yes"; then
2456             feature_not_found "libsnappy" "Install libsnappy devel"
2457         fi
2458         snappy="no"
2459     fi
2460 fi
2461
2462 ##########################################
2463 # bzip2 check
2464
2465 if test "$bzip2" != "no" ; then
2466     cat > $TMPC << EOF
2467 #include <bzlib.h>
2468 int main(void) { BZ2_bzlibVersion(); return 0; }
2469 EOF
2470     if compile_prog "" "-lbz2" ; then
2471         bzip2="yes"
2472     else
2473         if test "$bzip2" = "yes"; then
2474             feature_not_found "libbzip2" "Install libbzip2 devel"
2475         fi
2476         bzip2="no"
2477     fi
2478 fi
2479
2480 ##########################################
2481 # lzfse check
2482
2483 if test "$lzfse" != "no" ; then
2484     cat > $TMPC << EOF
2485 #include <lzfse.h>
2486 int main(void) { lzfse_decode_scratch_size(); return 0; }
2487 EOF
2488     if compile_prog "" "-llzfse" ; then
2489         lzfse="yes"
2490     else
2491         if test "$lzfse" = "yes"; then
2492             feature_not_found "lzfse" "Install lzfse devel"
2493         fi
2494         lzfse="no"
2495     fi
2496 fi
2497
2498 ##########################################
2499 # zstd check
2500
2501 if test "$zstd" != "no" ; then
2502     libzstd_minver="1.4.0"
2503     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2504         zstd_cflags="$($pkg_config --cflags libzstd)"
2505         zstd_libs="$($pkg_config --libs libzstd)"
2506         zstd="yes"
2507     else
2508         if test "$zstd" = "yes" ; then
2509             feature_not_found "libzstd" "Install libzstd devel"
2510         fi
2511         zstd="no"
2512     fi
2513 fi
2514
2515 ##########################################
2516 # libseccomp check
2517
2518 if test "$seccomp" != "no" ; then
2519     libseccomp_minver="2.3.0"
2520     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2521         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2522         seccomp_libs="$($pkg_config --libs libseccomp)"
2523         seccomp="yes"
2524     else
2525         if test "$seccomp" = "yes" ; then
2526             feature_not_found "libseccomp" \
2527                  "Install libseccomp devel >= $libseccomp_minver"
2528         fi
2529         seccomp="no"
2530     fi
2531 fi
2532
2533 ##########################################
2534 # xen probe
2535
2536 if test "$xen" != "disabled" ; then
2537   # Check whether Xen library path is specified via --extra-ldflags to avoid
2538   # overriding this setting with pkg-config output. If not, try pkg-config
2539   # to obtain all needed flags.
2540
2541   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2542      $pkg_config --exists xencontrol ; then
2543     xen_ctrl_version="$(printf '%d%02d%02d' \
2544       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2545     xen=enabled
2546     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2547     xen_pc="$xen_pc xenevtchn xendevicemodel"
2548     if $pkg_config --exists xentoolcore; then
2549       xen_pc="$xen_pc xentoolcore"
2550     fi
2551     xen_cflags="$($pkg_config --cflags $xen_pc)"
2552     xen_libs="$($pkg_config --libs $xen_pc)"
2553   else
2554
2555     xen_libs="-lxenstore -lxenctrl"
2556     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2557
2558     # First we test whether Xen headers and libraries are available.
2559     # If no, we are done and there is no Xen support.
2560     # If yes, more tests are run to detect the Xen version.
2561
2562     # Xen (any)
2563     cat > $TMPC <<EOF
2564 #include <xenctrl.h>
2565 int main(void) {
2566   return 0;
2567 }
2568 EOF
2569     if ! compile_prog "" "$xen_libs" ; then
2570       # Xen not found
2571       if test "$xen" = "enabled" ; then
2572         feature_not_found "xen" "Install xen devel"
2573       fi
2574       xen=disabled
2575
2576     # Xen unstable
2577     elif
2578         cat > $TMPC <<EOF &&
2579 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2580 #define __XEN_TOOLS__
2581 #include <xendevicemodel.h>
2582 #include <xenforeignmemory.h>
2583 int main(void) {
2584   xendevicemodel_handle *xd;
2585   xenforeignmemory_handle *xfmem;
2586
2587   xd = xendevicemodel_open(0, 0);
2588   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2589
2590   xfmem = xenforeignmemory_open(0, 0);
2591   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2592
2593   return 0;
2594 }
2595 EOF
2596         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2597       then
2598       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2599       xen_ctrl_version=41100
2600       xen=enabled
2601     elif
2602         cat > $TMPC <<EOF &&
2603 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2604 #include <xenforeignmemory.h>
2605 #include <xentoolcore.h>
2606 int main(void) {
2607   xenforeignmemory_handle *xfmem;
2608
2609   xfmem = xenforeignmemory_open(0, 0);
2610   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2611   xentoolcore_restrict_all(0);
2612
2613   return 0;
2614 }
2615 EOF
2616         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2617       then
2618       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2619       xen_ctrl_version=41000
2620       xen=enabled
2621     elif
2622         cat > $TMPC <<EOF &&
2623 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2624 #define __XEN_TOOLS__
2625 #include <xendevicemodel.h>
2626 int main(void) {
2627   xendevicemodel_handle *xd;
2628
2629   xd = xendevicemodel_open(0, 0);
2630   xendevicemodel_close(xd);
2631
2632   return 0;
2633 }
2634 EOF
2635         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2636       then
2637       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2638       xen_ctrl_version=40900
2639       xen=enabled
2640     elif
2641         cat > $TMPC <<EOF &&
2642 /*
2643  * If we have stable libs the we don't want the libxc compat
2644  * layers, regardless of what CFLAGS we may have been given.
2645  *
2646  * Also, check if xengnttab_grant_copy_segment_t is defined and
2647  * grant copy operation is implemented.
2648  */
2649 #undef XC_WANT_COMPAT_EVTCHN_API
2650 #undef XC_WANT_COMPAT_GNTTAB_API
2651 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2652 #include <xenctrl.h>
2653 #include <xenstore.h>
2654 #include <xenevtchn.h>
2655 #include <xengnttab.h>
2656 #include <xenforeignmemory.h>
2657 #include <stdint.h>
2658 #include <xen/hvm/hvm_info_table.h>
2659 #if !defined(HVM_MAX_VCPUS)
2660 # error HVM_MAX_VCPUS not defined
2661 #endif
2662 int main(void) {
2663   xc_interface *xc = NULL;
2664   xenforeignmemory_handle *xfmem;
2665   xenevtchn_handle *xe;
2666   xengnttab_handle *xg;
2667   xengnttab_grant_copy_segment_t* seg = NULL;
2668
2669   xs_daemon_open();
2670
2671   xc = xc_interface_open(0, 0, 0);
2672   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2673   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2674   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2675   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2676
2677   xfmem = xenforeignmemory_open(0, 0);
2678   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2679
2680   xe = xenevtchn_open(0, 0);
2681   xenevtchn_fd(xe);
2682
2683   xg = xengnttab_open(0, 0);
2684   xengnttab_grant_copy(xg, 0, seg);
2685
2686   return 0;
2687 }
2688 EOF
2689         compile_prog "" "$xen_libs $xen_stable_libs"
2690       then
2691       xen_ctrl_version=40800
2692       xen=enabled
2693     elif
2694         cat > $TMPC <<EOF &&
2695 /*
2696  * If we have stable libs the we don't want the libxc compat
2697  * layers, regardless of what CFLAGS we may have been given.
2698  */
2699 #undef XC_WANT_COMPAT_EVTCHN_API
2700 #undef XC_WANT_COMPAT_GNTTAB_API
2701 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2702 #include <xenctrl.h>
2703 #include <xenstore.h>
2704 #include <xenevtchn.h>
2705 #include <xengnttab.h>
2706 #include <xenforeignmemory.h>
2707 #include <stdint.h>
2708 #include <xen/hvm/hvm_info_table.h>
2709 #if !defined(HVM_MAX_VCPUS)
2710 # error HVM_MAX_VCPUS not defined
2711 #endif
2712 int main(void) {
2713   xc_interface *xc = NULL;
2714   xenforeignmemory_handle *xfmem;
2715   xenevtchn_handle *xe;
2716   xengnttab_handle *xg;
2717
2718   xs_daemon_open();
2719
2720   xc = xc_interface_open(0, 0, 0);
2721   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2722   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2723   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2724   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2725
2726   xfmem = xenforeignmemory_open(0, 0);
2727   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2728
2729   xe = xenevtchn_open(0, 0);
2730   xenevtchn_fd(xe);
2731
2732   xg = xengnttab_open(0, 0);
2733   xengnttab_map_grant_ref(xg, 0, 0, 0);
2734
2735   return 0;
2736 }
2737 EOF
2738         compile_prog "" "$xen_libs $xen_stable_libs"
2739       then
2740       xen_ctrl_version=40701
2741       xen=enabled
2742
2743     # Xen 4.6
2744     elif
2745         cat > $TMPC <<EOF &&
2746 #include <xenctrl.h>
2747 #include <xenstore.h>
2748 #include <stdint.h>
2749 #include <xen/hvm/hvm_info_table.h>
2750 #if !defined(HVM_MAX_VCPUS)
2751 # error HVM_MAX_VCPUS not defined
2752 #endif
2753 int main(void) {
2754   xc_interface *xc;
2755   xs_daemon_open();
2756   xc = xc_interface_open(0, 0, 0);
2757   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2758   xc_gnttab_open(NULL, 0);
2759   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2760   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2761   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2762   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2763   return 0;
2764 }
2765 EOF
2766         compile_prog "" "$xen_libs"
2767       then
2768       xen_ctrl_version=40600
2769       xen=enabled
2770
2771     # Xen 4.5
2772     elif
2773         cat > $TMPC <<EOF &&
2774 #include <xenctrl.h>
2775 #include <xenstore.h>
2776 #include <stdint.h>
2777 #include <xen/hvm/hvm_info_table.h>
2778 #if !defined(HVM_MAX_VCPUS)
2779 # error HVM_MAX_VCPUS not defined
2780 #endif
2781 int main(void) {
2782   xc_interface *xc;
2783   xs_daemon_open();
2784   xc = xc_interface_open(0, 0, 0);
2785   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2786   xc_gnttab_open(NULL, 0);
2787   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2788   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2789   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2790   return 0;
2791 }
2792 EOF
2793         compile_prog "" "$xen_libs"
2794       then
2795       xen_ctrl_version=40500
2796       xen=enabled
2797
2798     elif
2799         cat > $TMPC <<EOF &&
2800 #include <xenctrl.h>
2801 #include <xenstore.h>
2802 #include <stdint.h>
2803 #include <xen/hvm/hvm_info_table.h>
2804 #if !defined(HVM_MAX_VCPUS)
2805 # error HVM_MAX_VCPUS not defined
2806 #endif
2807 int main(void) {
2808   xc_interface *xc;
2809   xs_daemon_open();
2810   xc = xc_interface_open(0, 0, 0);
2811   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2812   xc_gnttab_open(NULL, 0);
2813   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2814   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2815   return 0;
2816 }
2817 EOF
2818         compile_prog "" "$xen_libs"
2819       then
2820       xen_ctrl_version=40200
2821       xen=enabled
2822
2823     else
2824       if test "$xen" = "enabled" ; then
2825         feature_not_found "xen (unsupported version)" \
2826                           "Install a supported xen (xen 4.2 or newer)"
2827       fi
2828       xen=disabled
2829     fi
2830
2831     if test "$xen" = enabled; then
2832       if test $xen_ctrl_version -ge 40701  ; then
2833         xen_libs="$xen_libs $xen_stable_libs "
2834       fi
2835     fi
2836   fi
2837 fi
2838
2839 if test "$xen_pci_passthrough" != "disabled"; then
2840   if test "$xen" = "enabled" && test "$linux" = "yes"; then
2841     xen_pci_passthrough=enabled
2842   else
2843     if test "$xen_pci_passthrough" = "enabled"; then
2844       error_exit "User requested feature Xen PCI Passthrough" \
2845           " but this feature requires /sys from Linux"
2846     fi
2847     xen_pci_passthrough=disabled
2848   fi
2849 fi
2850
2851 ##########################################
2852 # gettext probe
2853 if test "$gettext" != "false" ; then
2854   if has xgettext; then
2855     gettext=true
2856   else
2857     if test "$gettext" = "true" ; then
2858       feature_not_found "gettext" "Install xgettext binary"
2859     fi
2860     gettext=false
2861   fi
2862 fi
2863
2864 ##########################################
2865 # X11 probe
2866 if $pkg_config --exists "x11"; then
2867     have_x11=yes
2868     x11_cflags=$($pkg_config --cflags x11)
2869     x11_libs=$($pkg_config --libs x11)
2870 fi
2871
2872 ##########################################
2873 # GTK probe
2874
2875 if test "$gtk" != "no"; then
2876     gtkpackage="gtk+-3.0"
2877     gtkx11package="gtk+-x11-3.0"
2878     gtkversion="3.22.0"
2879     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2880         gtk_cflags=$($pkg_config --cflags $gtkpackage)
2881         gtk_libs=$($pkg_config --libs $gtkpackage)
2882         gtk_version=$($pkg_config --modversion $gtkpackage)
2883         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2884             need_x11=yes
2885             gtk_cflags="$gtk_cflags $x11_cflags"
2886             gtk_libs="$gtk_libs $x11_libs"
2887         fi
2888         gtk="yes"
2889     elif test "$gtk" = "yes"; then
2890         feature_not_found "gtk" "Install gtk3-devel"
2891     else
2892         gtk="no"
2893     fi
2894 fi
2895
2896
2897 ##########################################
2898 # GNUTLS probe
2899
2900 if test "$gnutls" != "no"; then
2901     pass="no"
2902     if $pkg_config --exists "gnutls >= 3.1.18"; then
2903         gnutls_cflags=$($pkg_config --cflags gnutls)
2904         gnutls_libs=$($pkg_config --libs gnutls)
2905         # Packaging for the static libraries is not always correct.
2906         # At least ubuntu 18.04 ships only shared libraries.
2907         write_c_skeleton
2908         if compile_prog "" "$gnutls_libs" ; then
2909             pass="yes"
2910         fi
2911     fi
2912     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2913         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2914     else
2915         gnutls="$pass"
2916     fi
2917 fi
2918
2919
2920 # If user didn't give a --disable/enable-gcrypt flag,
2921 # then mark as disabled if user requested nettle
2922 # explicitly
2923 if test -z "$gcrypt"
2924 then
2925     if test "$nettle" = "yes"
2926     then
2927         gcrypt="no"
2928     fi
2929 fi
2930
2931 # If user didn't give a --disable/enable-nettle flag,
2932 # then mark as disabled if user requested gcrypt
2933 # explicitly
2934 if test -z "$nettle"
2935 then
2936     if test "$gcrypt" = "yes"
2937     then
2938         nettle="no"
2939     fi
2940 fi
2941
2942 has_libgcrypt() {
2943     if ! has "libgcrypt-config"
2944     then
2945         return 1
2946     fi
2947
2948     if test -n "$cross_prefix"
2949     then
2950         host=$(libgcrypt-config --host)
2951         if test "$host-" != $cross_prefix
2952         then
2953             return 1
2954         fi
2955     fi
2956
2957     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2958     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2959
2960     if test $maj != 1 || test $min -lt 5
2961     then
2962        return 1
2963     fi
2964
2965     return 0
2966 }
2967
2968
2969 if test "$nettle" != "no"; then
2970     pass="no"
2971     if $pkg_config --exists "nettle >= 2.7.1"; then
2972         nettle_cflags=$($pkg_config --cflags nettle)
2973         nettle_libs=$($pkg_config --libs nettle)
2974         nettle_version=$($pkg_config --modversion nettle)
2975         # Link test to make sure the given libraries work (e.g for static).
2976         write_c_skeleton
2977         if compile_prog "" "$nettle_libs" ; then
2978             if test -z "$gcrypt"; then
2979                gcrypt="no"
2980             fi
2981             pass="yes"
2982         fi
2983     fi
2984     if test "$pass" = "yes"
2985     then
2986         cat > $TMPC << EOF
2987 #include <nettle/xts.h>
2988 int main(void) {
2989   return 0;
2990 }
2991 EOF
2992         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2993             nettle_xts=yes
2994             qemu_private_xts=no
2995         fi
2996     fi
2997     if test "$pass" = "no" && test "$nettle" = "yes"; then
2998         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2999     else
3000         nettle="$pass"
3001     fi
3002 fi
3003
3004 if test "$gcrypt" != "no"; then
3005     pass="no"
3006     if has_libgcrypt; then
3007         gcrypt_cflags=$(libgcrypt-config --cflags)
3008         gcrypt_libs=$(libgcrypt-config --libs)
3009         # Debian has removed -lgpg-error from libgcrypt-config
3010         # as it "spreads unnecessary dependencies" which in
3011         # turn breaks static builds...
3012         if test "$static" = "yes"
3013         then
3014             gcrypt_libs="$gcrypt_libs -lgpg-error"
3015         fi
3016
3017         # Link test to make sure the given libraries work (e.g for static).
3018         write_c_skeleton
3019         if compile_prog "" "$gcrypt_libs" ; then
3020             pass="yes"
3021         fi
3022     fi
3023     if test "$pass" = "yes"; then
3024         gcrypt="yes"
3025         cat > $TMPC << EOF
3026 #include <gcrypt.h>
3027 int main(void) {
3028   gcry_mac_hd_t handle;
3029   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3030                 GCRY_MAC_FLAG_SECURE, NULL);
3031   return 0;
3032 }
3033 EOF
3034         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3035             gcrypt_hmac=yes
3036         fi
3037         cat > $TMPC << EOF
3038 #include <gcrypt.h>
3039 int main(void) {
3040   gcry_cipher_hd_t handle;
3041   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3042   return 0;
3043 }
3044 EOF
3045         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3046             gcrypt_xts=yes
3047             qemu_private_xts=no
3048         fi
3049     elif test "$gcrypt" = "yes"; then
3050         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3051     else
3052         gcrypt="no"
3053     fi
3054 fi
3055
3056
3057 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3058 then
3059     error_exit "Only one of gcrypt & nettle can be enabled"
3060 fi
3061
3062 ##########################################
3063 # libtasn1 - only for the TLS creds/session test suite
3064
3065 tasn1=yes
3066 tasn1_cflags=""
3067 tasn1_libs=""
3068 if $pkg_config --exists "libtasn1"; then
3069     tasn1_cflags=$($pkg_config --cflags libtasn1)
3070     tasn1_libs=$($pkg_config --libs libtasn1)
3071 else
3072     tasn1=no
3073 fi
3074
3075
3076 ##########################################
3077 # PAM probe
3078
3079 if test "$auth_pam" != "no"; then
3080     cat > $TMPC <<EOF
3081 #include <security/pam_appl.h>
3082 #include <stdio.h>
3083 int main(void) {
3084    const char *service_name = "qemu";
3085    const char *user = "frank";
3086    const struct pam_conv pam_conv = { 0 };
3087    pam_handle_t *pamh = NULL;
3088    pam_start(service_name, user, &pam_conv, &pamh);
3089    return 0;
3090 }
3091 EOF
3092     if compile_prog "" "-lpam" ; then
3093         auth_pam=yes
3094     else
3095         if test "$auth_pam" = "yes"; then
3096             feature_not_found "PAM" "Install PAM development package"
3097         else
3098             auth_pam=no
3099         fi
3100     fi
3101 fi
3102
3103 ##########################################
3104 # VTE probe
3105
3106 if test "$vte" != "no"; then
3107     vteminversion="0.32.0"
3108     if $pkg_config --exists "vte-2.91"; then
3109       vtepackage="vte-2.91"
3110     else
3111       vtepackage="vte-2.90"
3112     fi
3113     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3114         vte_cflags=$($pkg_config --cflags $vtepackage)
3115         vte_libs=$($pkg_config --libs $vtepackage)
3116         vteversion=$($pkg_config --modversion $vtepackage)
3117         vte="yes"
3118     elif test "$vte" = "yes"; then
3119         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3120     else
3121         vte="no"
3122     fi
3123 fi
3124
3125 ##########################################
3126 # RDMA needs OpenFabrics libraries
3127 if test "$rdma" != "no" ; then
3128   cat > $TMPC <<EOF
3129 #include <rdma/rdma_cma.h>
3130 int main(void) { return 0; }
3131 EOF
3132   rdma_libs="-lrdmacm -libverbs -libumad"
3133   if compile_prog "" "$rdma_libs" ; then
3134     rdma="yes"
3135   else
3136     if test "$rdma" = "yes" ; then
3137         error_exit \
3138             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3139             " Your options:" \
3140             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3141             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3142             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3143     fi
3144     rdma="no"
3145   fi
3146 fi
3147
3148 ##########################################
3149 # PVRDMA detection
3150
3151 cat > $TMPC <<EOF &&
3152 #include <sys/mman.h>
3153
3154 int
3155 main(void)
3156 {
3157     char buf = 0;
3158     void *addr = &buf;
3159     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3160
3161     return 0;
3162 }
3163 EOF
3164
3165 if test "$rdma" = "yes" ; then
3166     case "$pvrdma" in
3167     "")
3168         if compile_prog "" ""; then
3169             pvrdma="yes"
3170         else
3171             pvrdma="no"
3172         fi
3173         ;;
3174     "yes")
3175         if ! compile_prog "" ""; then
3176             error_exit "PVRDMA is not supported since mremap is not implemented"
3177         fi
3178         pvrdma="yes"
3179         ;;
3180     "no")
3181         pvrdma="no"
3182         ;;
3183     esac
3184 else
3185     if test "$pvrdma" = "yes" ; then
3186         error_exit "PVRDMA requires rdma suppport"
3187     fi
3188     pvrdma="no"
3189 fi
3190
3191 # Let's see if enhanced reg_mr is supported
3192 if test "$pvrdma" = "yes" ; then
3193
3194 cat > $TMPC <<EOF &&
3195 #include <infiniband/verbs.h>
3196
3197 int
3198 main(void)
3199 {
3200     struct ibv_mr *mr;
3201     struct ibv_pd *pd = NULL;
3202     size_t length = 10;
3203     uint64_t iova = 0;
3204     int access = 0;
3205     void *addr = NULL;
3206
3207     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3208
3209     ibv_dereg_mr(mr);
3210
3211     return 0;
3212 }
3213 EOF
3214     if ! compile_prog "" "-libverbs"; then
3215         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3216     fi
3217 fi
3218
3219 ##########################################
3220 # xfsctl() probe, used for file-posix.c
3221 if test "$xfs" != "no" ; then
3222   cat > $TMPC << EOF
3223 #include <stddef.h>  /* NULL */
3224 #include <xfs/xfs.h>
3225 int main(void)
3226 {
3227     xfsctl(NULL, 0, 0, NULL);
3228     return 0;
3229 }
3230 EOF
3231   if compile_prog "" "" ; then
3232     xfs="yes"
3233   else
3234     if test "$xfs" = "yes" ; then
3235       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3236     fi
3237     xfs=no
3238   fi
3239 fi
3240
3241 ##########################################
3242 # vde libraries probe
3243 if test "$vde" != "no" ; then
3244   vde_libs="-lvdeplug"
3245   cat > $TMPC << EOF
3246 #include <libvdeplug.h>
3247 int main(void)
3248 {
3249     struct vde_open_args a = {0, 0, 0};
3250     char s[] = "";
3251     vde_open(s, s, &a);
3252     return 0;
3253 }
3254 EOF
3255   if compile_prog "" "$vde_libs" ; then
3256     vde=yes
3257   else
3258     if test "$vde" = "yes" ; then
3259       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3260     fi
3261     vde=no
3262   fi
3263 fi
3264
3265 ##########################################
3266 # netmap support probe
3267 # Apart from looking for netmap headers, we make sure that the host API version
3268 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3269 # a minor/major version number. Minor new features will be marked with values up
3270 # to 15, and if something happens that requires a change to the backend we will
3271 # move above 15, submit the backend fixes and modify this two bounds.
3272 if test "$netmap" != "no" ; then
3273   cat > $TMPC << EOF
3274 #include <inttypes.h>
3275 #include <net/if.h>
3276 #include <net/netmap.h>
3277 #include <net/netmap_user.h>
3278 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3279 #error
3280 #endif
3281 int main(void) { return 0; }
3282 EOF
3283   if compile_prog "" "" ; then
3284     netmap=yes
3285   else
3286     if test "$netmap" = "yes" ; then
3287       feature_not_found "netmap"
3288     fi
3289     netmap=no
3290   fi
3291 fi
3292
3293 ##########################################
3294 # libcap-ng library probe
3295 if test "$cap_ng" != "no" ; then
3296   cap_libs="-lcap-ng"
3297   cat > $TMPC << EOF
3298 #include <cap-ng.h>
3299 int main(void)
3300 {
3301     capng_capability_to_name(CAPNG_EFFECTIVE);
3302     return 0;
3303 }
3304 EOF
3305   if compile_prog "" "$cap_libs" ; then
3306     cap_ng=yes
3307   else
3308     if test "$cap_ng" = "yes" ; then
3309       feature_not_found "cap_ng" "Install libcap-ng devel"
3310     fi
3311     cap_ng=no
3312   fi
3313 fi
3314
3315 ##########################################
3316 # Sound support libraries probe
3317
3318 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3319 for drv in $audio_drv_list; do
3320     case $drv in
3321     alsa | try-alsa)
3322     if $pkg_config alsa --exists; then
3323         alsa_libs=$($pkg_config alsa --libs)
3324         alsa_cflags=$($pkg_config alsa --cflags)
3325         alsa=yes
3326         if test "$drv" = "try-alsa"; then
3327             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3328         fi
3329     else
3330         if test "$drv" = "try-alsa"; then
3331             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3332         else
3333             error_exit "$drv check failed" \
3334                 "Make sure to have the $drv libs and headers installed."
3335         fi
3336     fi
3337     ;;
3338
3339     pa | try-pa)
3340     if $pkg_config libpulse --exists; then
3341         libpulse=yes
3342         pulse_libs=$($pkg_config libpulse --libs)
3343         pulse_cflags=$($pkg_config libpulse --cflags)
3344         if test "$drv" = "try-pa"; then
3345             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3346         fi
3347     else
3348         if test "$drv" = "try-pa"; then
3349             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3350         else
3351             error_exit "$drv check failed" \
3352                 "Make sure to have the $drv libs and headers installed."
3353         fi
3354     fi
3355     ;;
3356
3357     sdl)
3358     if test "$sdl" = "no"; then
3359         error_exit "sdl not found or disabled, can not use sdl audio driver"
3360     fi
3361     ;;
3362
3363     try-sdl)
3364     if test "$sdl" = "no"; then
3365         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3366     else
3367         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3368     fi
3369     ;;
3370
3371     coreaudio)
3372       coreaudio_libs="-framework CoreAudio"
3373     ;;
3374
3375     dsound)
3376       dsound_libs="-lole32 -ldxguid"
3377       audio_win_int="yes"
3378     ;;
3379
3380     oss)
3381       oss_libs="$oss_lib"
3382     ;;
3383
3384     jack | try-jack)
3385     if $pkg_config jack --exists; then
3386         libjack=yes
3387         jack_libs=$($pkg_config jack --libs)
3388         if test "$drv" = "try-jack"; then
3389             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3390         fi
3391     else
3392         if test "$drv" = "try-jack"; then
3393             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3394         else
3395             error_exit "$drv check failed" \
3396                 "Make sure to have the $drv libs and headers installed."
3397         fi
3398     fi
3399     ;;
3400
3401     *)
3402     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3403         error_exit "Unknown driver '$drv' selected" \
3404             "Possible drivers are: $audio_possible_drivers"
3405     }
3406     ;;
3407     esac
3408 done
3409
3410 ##########################################
3411 # BrlAPI probe
3412
3413 if test "$brlapi" != "no" ; then
3414   brlapi_libs="-lbrlapi"
3415   cat > $TMPC << EOF
3416 #include <brlapi.h>
3417 #include <stddef.h>
3418 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3419 EOF
3420   if compile_prog "" "$brlapi_libs" ; then
3421     brlapi=yes
3422   else
3423     if test "$brlapi" = "yes" ; then
3424       feature_not_found "brlapi" "Install brlapi devel"
3425     fi
3426     brlapi=no
3427   fi
3428 fi
3429
3430 ##########################################
3431 # curl probe
3432 if test "$curl" != "no" ; then
3433   if $pkg_config libcurl --exists; then
3434     curlconfig="$pkg_config libcurl"
3435   else
3436     curlconfig=curl-config
3437   fi
3438   cat > $TMPC << EOF
3439 #include <curl/curl.h>
3440 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3441 EOF
3442   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3443   curl_libs=$($curlconfig --libs 2>/dev/null)
3444   if compile_prog "$curl_cflags" "$curl_libs" ; then
3445     curl=yes
3446   else
3447     if test "$curl" = "yes" ; then
3448       feature_not_found "curl" "Install libcurl devel"
3449     fi
3450     curl=no
3451   fi
3452 fi # test "$curl"
3453
3454 ##########################################
3455 # glib support probe
3456
3457 glib_req_ver=2.48
3458 glib_modules=gthread-2.0
3459 if test "$modules" = yes; then
3460     glib_modules="$glib_modules gmodule-export-2.0"
3461 fi
3462 if test "$plugins" = yes; then
3463     glib_modules="$glib_modules gmodule-2.0"
3464 fi
3465
3466 for i in $glib_modules; do
3467     if $pkg_config --atleast-version=$glib_req_ver $i; then
3468         glib_cflags=$($pkg_config --cflags $i)
3469         glib_libs=$($pkg_config --libs $i)
3470     else
3471         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3472     fi
3473 done
3474
3475 # This workaround is required due to a bug in pkg-config file for glib as it
3476 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3477
3478 if test "$static" = yes && test "$mingw32" = yes; then
3479     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3480 fi
3481
3482 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3483     gio_cflags=$($pkg_config --cflags gio-2.0)
3484     gio_libs=$($pkg_config --libs gio-2.0)
3485     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3486     if [ ! -x "$gdbus_codegen" ]; then
3487         gdbus_codegen=
3488     fi
3489     # Check that the libraries actually work -- Ubuntu 18.04 ships
3490     # with pkg-config --static --libs data for gio-2.0 that is missing
3491     # -lblkid and will give a link error.
3492     cat > $TMPC <<EOF
3493 #include <gio/gio.h>
3494 int main(void)
3495 {
3496     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3497     return 0;
3498 }
3499 EOF
3500     if compile_prog "$gio_cflags" "$gio_libs" ; then
3501         gio=yes
3502     else
3503         gio=no
3504     fi
3505 else
3506     gio=no
3507 fi
3508
3509 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3510     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3511     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3512 fi
3513
3514 # Sanity check that the current size_t matches the
3515 # size that glib thinks it should be. This catches
3516 # problems on multi-arch where people try to build
3517 # 32-bit QEMU while pointing at 64-bit glib headers
3518 cat > $TMPC <<EOF
3519 #include <glib.h>
3520 #include <unistd.h>
3521
3522 #define QEMU_BUILD_BUG_ON(x) \
3523   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3524
3525 int main(void) {
3526    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3527    return 0;
3528 }
3529 EOF
3530
3531 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3532     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3533                "You probably need to set PKG_CONFIG_LIBDIR"\
3534                "to point to the right pkg-config files for your"\
3535                "build target"
3536 fi
3537
3538 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3539 cat > $TMPC << EOF
3540 #include <glib.h>
3541 int main(void) { return 0; }
3542 EOF
3543 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3544     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3545         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3546         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3547     fi
3548 fi
3549
3550 # Silence clang warnings triggered by glib < 2.57.2
3551 cat > $TMPC << EOF
3552 #include <glib.h>
3553 typedef struct Foo {
3554     int i;
3555 } Foo;
3556 static void foo_free(Foo *f)
3557 {
3558     g_free(f);
3559 }
3560 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3561 int main(void) { return 0; }
3562 EOF
3563 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3564     if cc_has_warning_flag "-Wno-unused-function"; then
3565         glib_cflags="$glib_cflags -Wno-unused-function"
3566         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3567     fi
3568 fi
3569
3570 ##########################################
3571 # SHA command probe for modules
3572 if test "$modules" = yes; then
3573     shacmd_probe="sha1sum sha1 shasum"
3574     for c in $shacmd_probe; do
3575         if has $c; then
3576             shacmd="$c"
3577             break
3578         fi
3579     done
3580     if test "$shacmd" = ""; then
3581         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3582     fi
3583 fi
3584
3585 ##########################################
3586 # pthread probe
3587 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3588
3589 pthread=no
3590 cat > $TMPC << EOF
3591 #include <pthread.h>
3592 static void *f(void *p) { return NULL; }
3593 int main(void) {
3594   pthread_t thread;
3595   pthread_create(&thread, 0, f, 0);
3596   return 0;
3597 }
3598 EOF
3599 if compile_prog "" "" ; then
3600   pthread=yes
3601 else
3602   for pthread_lib in $PTHREADLIBS_LIST; do
3603     if compile_prog "" "$pthread_lib" ; then
3604       pthread=yes
3605       found=no
3606       for lib_entry in $LIBS; do
3607         if test "$lib_entry" = "$pthread_lib"; then
3608           found=yes
3609           break
3610         fi
3611       done
3612       if test "$found" = "no"; then
3613         LIBS="$pthread_lib $LIBS"
3614       fi
3615       break
3616     fi
3617   done
3618 fi
3619
3620 if test "$mingw32" != yes && test "$pthread" = no; then
3621   error_exit "pthread check failed" \
3622       "Make sure to have the pthread libs and headers installed."
3623 fi
3624
3625 # check for pthread_setname_np with thread id
3626 pthread_setname_np_w_tid=no
3627 cat > $TMPC << EOF
3628 #include <pthread.h>
3629
3630 static void *f(void *p) { return NULL; }
3631 int main(void)
3632 {
3633     pthread_t thread;
3634     pthread_create(&thread, 0, f, 0);
3635     pthread_setname_np(thread, "QEMU");
3636     return 0;
3637 }
3638 EOF
3639 if compile_prog "" "$pthread_lib" ; then
3640   pthread_setname_np_w_tid=yes
3641 fi
3642
3643 # check for pthread_setname_np without thread id
3644 pthread_setname_np_wo_tid=no
3645 cat > $TMPC << EOF
3646 #include <pthread.h>
3647
3648 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3649 int main(void)
3650 {
3651     pthread_t thread;
3652     pthread_create(&thread, 0, f, 0);
3653     return 0;
3654 }
3655 EOF
3656 if compile_prog "" "$pthread_lib" ; then
3657   pthread_setname_np_wo_tid=yes
3658 fi
3659
3660 ##########################################
3661 # rbd probe
3662 if test "$rbd" != "no" ; then
3663   cat > $TMPC <<EOF
3664 #include <stdio.h>
3665 #include <rbd/librbd.h>
3666 int main(void) {
3667     rados_t cluster;
3668     rados_create(&cluster, NULL);
3669     return 0;
3670 }
3671 EOF
3672   rbd_libs="-lrbd -lrados"
3673   if compile_prog "" "$rbd_libs" ; then
3674     rbd=yes
3675   else
3676     if test "$rbd" = "yes" ; then
3677       feature_not_found "rados block device" "Install librbd/ceph devel"
3678     fi
3679     rbd=no
3680   fi
3681 fi
3682
3683 ##########################################
3684 # libssh probe
3685 if test "$libssh" != "no" ; then
3686   if $pkg_config --exists libssh; then
3687     libssh_cflags=$($pkg_config libssh --cflags)
3688     libssh_libs=$($pkg_config libssh --libs)
3689     libssh=yes
3690   else
3691     if test "$libssh" = "yes" ; then
3692       error_exit "libssh required for --enable-libssh"
3693     fi
3694     libssh=no
3695   fi
3696 fi
3697
3698 ##########################################
3699 # Check for libssh 0.8
3700 # This is done like this instead of using the LIBSSH_VERSION_* and
3701 # SSH_VERSION_* macros because some distributions in the past shipped
3702 # snapshots of the future 0.8 from Git, and those snapshots did not
3703 # have updated version numbers (still referring to 0.7.0).
3704
3705 if test "$libssh" = "yes"; then
3706   cat > $TMPC <<EOF
3707 #include <libssh/libssh.h>
3708 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3709 EOF
3710   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3711     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3712   fi
3713 fi
3714
3715 ##########################################
3716 # linux-aio probe
3717
3718 if test "$linux_aio" != "no" ; then
3719   cat > $TMPC <<EOF
3720 #include <libaio.h>
3721 #include <sys/eventfd.h>
3722 #include <stddef.h>
3723 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3724 EOF
3725   if compile_prog "" "-laio" ; then
3726     linux_aio=yes
3727   else
3728     if test "$linux_aio" = "yes" ; then
3729       feature_not_found "linux AIO" "Install libaio devel"
3730     fi
3731     linux_aio=no
3732   fi
3733 fi
3734 ##########################################
3735 # linux-io-uring probe
3736
3737 if test "$linux_io_uring" != "no" ; then
3738   if $pkg_config liburing; then
3739     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3740     linux_io_uring_libs=$($pkg_config --libs liburing)
3741     linux_io_uring=yes
3742   else
3743     if test "$linux_io_uring" = "yes" ; then
3744       feature_not_found "linux io_uring" "Install liburing devel"
3745     fi
3746     linux_io_uring=no
3747   fi
3748 fi
3749
3750 ##########################################
3751 # TPM emulation is only on POSIX
3752
3753 if test "$tpm" = ""; then
3754   if test "$mingw32" = "yes"; then
3755     tpm=no
3756   else
3757     tpm=yes
3758   fi
3759 elif test "$tpm" = "yes"; then
3760   if test "$mingw32" = "yes" ; then
3761     error_exit "TPM emulation only available on POSIX systems"
3762   fi
3763 fi
3764
3765 ##########################################
3766 # attr probe
3767
3768 libattr_libs=
3769 if test "$attr" != "no" ; then
3770   cat > $TMPC <<EOF
3771 #include <stdio.h>
3772 #include <sys/types.h>
3773 #ifdef CONFIG_LIBATTR
3774 #include <attr/xattr.h>
3775 #else
3776 #include <sys/xattr.h>
3777 #endif
3778 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
3779 EOF
3780   if compile_prog "" "" ; then
3781     attr=yes
3782   # Older distros have <attr/xattr.h>, and need -lattr:
3783   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
3784     attr=yes
3785     libattr_libs="-lattr"
3786     libattr=yes
3787   else
3788     if test "$attr" = "yes" ; then
3789       feature_not_found "ATTR" "Install libc6 or libattr devel"
3790     fi
3791     attr=no
3792   fi
3793 fi
3794
3795 ##########################################
3796 # iovec probe
3797 cat > $TMPC <<EOF
3798 #include <sys/types.h>
3799 #include <sys/uio.h>
3800 #include <unistd.h>
3801 int main(void) { return sizeof(struct iovec); }
3802 EOF
3803 iovec=no
3804 if compile_prog "" "" ; then
3805   iovec=yes
3806 fi
3807
3808 ##########################################
3809 # preadv probe
3810 cat > $TMPC <<EOF
3811 #include <sys/types.h>
3812 #include <sys/uio.h>
3813 #include <unistd.h>
3814 int main(void) { return preadv(0, 0, 0, 0); }
3815 EOF
3816 preadv=no
3817 if compile_prog "" "" ; then
3818   preadv=yes
3819 fi
3820
3821 ##########################################
3822 # fdt probe
3823
3824 case "$fdt" in
3825   auto | enabled | internal)
3826     # Simpler to always update submodule, even if not needed.
3827     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
3828       git_submodules="${git_submodules} dtc"
3829     fi
3830     ;;
3831 esac
3832
3833 ##########################################
3834 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3835
3836 gbm="no"
3837 if $pkg_config gbm; then
3838     gbm_cflags="$($pkg_config --cflags gbm)"
3839     gbm_libs="$($pkg_config --libs gbm)"
3840     gbm="yes"
3841 fi
3842
3843 if test "$opengl" != "no" ; then
3844   opengl_pkgs="epoxy gbm"
3845   if $pkg_config $opengl_pkgs; then
3846     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3847     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3848     opengl=yes
3849     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
3850         gtk_gl="yes"
3851     fi
3852   else
3853     if test "$opengl" = "yes" ; then
3854       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3855     fi
3856     opengl_cflags=""
3857     opengl_libs=""
3858     opengl=no
3859   fi
3860 fi
3861
3862 if test "$opengl" = "yes"; then
3863   cat > $TMPC << EOF
3864 #include <epoxy/egl.h>
3865 #ifndef EGL_MESA_image_dma_buf_export
3866 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3867 #endif
3868 int main(void) { return 0; }
3869 EOF
3870   if compile_prog "" "" ; then
3871     opengl_dmabuf=yes
3872   fi
3873 fi
3874
3875 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
3876   for target in $target_list; do
3877     case $target in
3878       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
3879         need_x11=yes
3880       ;;
3881     esac
3882   done
3883 fi
3884
3885 ##########################################
3886 # libxml2 probe
3887 if test "$libxml2" != "no" ; then
3888     if $pkg_config --exists libxml-2.0; then
3889         libxml2="yes"
3890         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3891         libxml2_libs=$($pkg_config --libs libxml-2.0)
3892     else
3893         if test "$libxml2" = "yes"; then
3894             feature_not_found "libxml2" "Install libxml2 devel"
3895         fi
3896         libxml2="no"
3897     fi
3898 fi
3899
3900 ##########################################
3901 # glusterfs probe
3902 if test "$glusterfs" != "no" ; then
3903   if $pkg_config --atleast-version=3 glusterfs-api; then
3904     glusterfs="yes"
3905     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
3906     glusterfs_libs=$($pkg_config --libs glusterfs-api)
3907     if $pkg_config --atleast-version=4 glusterfs-api; then
3908       glusterfs_xlator_opt="yes"
3909     fi
3910     if $pkg_config --atleast-version=5 glusterfs-api; then
3911       glusterfs_discard="yes"
3912     fi
3913     if $pkg_config --atleast-version=6 glusterfs-api; then
3914       glusterfs_fallocate="yes"
3915       glusterfs_zerofill="yes"
3916     fi
3917     cat > $TMPC << EOF
3918 #include <glusterfs/api/glfs.h>
3919
3920 int
3921 main(void)
3922 {
3923         /* new glfs_ftruncate() passes two additional args */
3924         return glfs_ftruncate(NULL, 0, NULL, NULL);
3925 }
3926 EOF
3927     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3928       glusterfs_ftruncate_has_stat="yes"
3929     fi
3930     cat > $TMPC << EOF
3931 #include <glusterfs/api/glfs.h>
3932
3933 /* new glfs_io_cbk() passes two additional glfs_stat structs */
3934 static void
3935 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
3936 {}
3937
3938 int
3939 main(void)
3940 {
3941         glfs_io_cbk iocb = &glusterfs_iocb;
3942         iocb(NULL, 0 , NULL, NULL, NULL);
3943         return 0;
3944 }
3945 EOF
3946     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3947       glusterfs_iocb_has_stat="yes"
3948     fi
3949   else
3950     if test "$glusterfs" = "yes" ; then
3951       feature_not_found "GlusterFS backend support" \
3952           "Install glusterfs-api devel >= 3"
3953     fi
3954     glusterfs="no"
3955   fi
3956 fi
3957
3958 # Check for inotify functions when we are building linux-user
3959 # emulator.  This is done because older glibc versions don't
3960 # have syscall stubs for these implemented.  In that case we
3961 # don't provide them even if kernel supports them.
3962 #
3963 inotify=no
3964 cat > $TMPC << EOF
3965 #include <sys/inotify.h>
3966
3967 int
3968 main(void)
3969 {
3970         /* try to start inotify */
3971         return inotify_init();
3972 }
3973 EOF
3974 if compile_prog "" "" ; then
3975   inotify=yes
3976 fi
3977
3978 inotify1=no
3979 cat > $TMPC << EOF
3980 #include <sys/inotify.h>
3981
3982 int
3983 main(void)
3984 {
3985     /* try to start inotify */
3986     return inotify_init1(0);
3987 }
3988 EOF
3989 if compile_prog "" "" ; then
3990   inotify1=yes
3991 fi
3992
3993 # check if pipe2 is there
3994 pipe2=no
3995 cat > $TMPC << EOF
3996 #include <unistd.h>
3997 #include <fcntl.h>
3998
3999 int main(void)
4000 {
4001     int pipefd[2];
4002     return pipe2(pipefd, O_CLOEXEC);
4003 }
4004 EOF
4005 if compile_prog "" "" ; then
4006   pipe2=yes
4007 fi
4008
4009 # check if accept4 is there
4010 accept4=no
4011 cat > $TMPC << EOF
4012 #include <sys/socket.h>
4013 #include <stddef.h>
4014
4015 int main(void)
4016 {
4017     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4018     return 0;
4019 }
4020 EOF
4021 if compile_prog "" "" ; then
4022   accept4=yes
4023 fi
4024
4025 # check if tee/splice is there. vmsplice was added same time.
4026 splice=no
4027 cat > $TMPC << EOF
4028 #include <unistd.h>
4029 #include <fcntl.h>
4030 #include <limits.h>
4031
4032 int main(void)
4033 {
4034     int len, fd = 0;
4035     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4036     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4037     return 0;
4038 }
4039 EOF
4040 if compile_prog "" "" ; then
4041   splice=yes
4042 fi
4043
4044 ##########################################
4045 # libnuma probe
4046
4047 if test "$numa" != "no" ; then
4048   cat > $TMPC << EOF
4049 #include <numa.h>
4050 int main(void) { return numa_available(); }
4051 EOF
4052
4053   if compile_prog "" "-lnuma" ; then
4054     numa=yes
4055     numa_libs="-lnuma"
4056   else
4057     if test "$numa" = "yes" ; then
4058       feature_not_found "numa" "install numactl devel"
4059     fi
4060     numa=no
4061   fi
4062 fi
4063
4064 malloc=system
4065 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4066     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4067     exit 1
4068 elif test "$tcmalloc" = "yes" ; then
4069     malloc=tcmalloc
4070 elif test "$jemalloc" = "yes" ; then
4071     malloc=jemalloc
4072 fi
4073
4074 ##########################################
4075 # signalfd probe
4076 signalfd="no"
4077 cat > $TMPC << EOF
4078 #include <unistd.h>
4079 #include <sys/syscall.h>
4080 #include <signal.h>
4081 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4082 EOF
4083
4084 if compile_prog "" "" ; then
4085   signalfd=yes
4086 fi
4087
4088 # check if optreset global is declared by <getopt.h>
4089 optreset="no"
4090 cat > $TMPC << EOF
4091 #include <getopt.h>
4092 int main(void) { return optreset; }
4093 EOF
4094
4095 if compile_prog "" "" ; then
4096   optreset=yes
4097 fi
4098
4099 # check if eventfd is supported
4100 eventfd=no
4101 cat > $TMPC << EOF
4102 #include <sys/eventfd.h>
4103
4104 int main(void)
4105 {
4106     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4107 }
4108 EOF
4109 if compile_prog "" "" ; then
4110   eventfd=yes
4111 fi
4112
4113 # check if memfd is supported
4114 memfd=no
4115 cat > $TMPC << EOF
4116 #include <sys/mman.h>
4117
4118 int main(void)
4119 {
4120     return memfd_create("foo", MFD_ALLOW_SEALING);
4121 }
4122 EOF
4123 if compile_prog "" "" ; then
4124   memfd=yes
4125 fi
4126
4127 # check for usbfs
4128 have_usbfs=no
4129 if test "$linux_user" = "yes"; then
4130   cat > $TMPC << EOF
4131 #include <linux/usbdevice_fs.h>
4132
4133 #ifndef USBDEVFS_GET_CAPABILITIES
4134 #error "USBDEVFS_GET_CAPABILITIES undefined"
4135 #endif
4136
4137 #ifndef USBDEVFS_DISCONNECT_CLAIM
4138 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4139 #endif
4140
4141 int main(void)
4142 {
4143     return 0;
4144 }
4145 EOF
4146   if compile_prog "" ""; then
4147     have_usbfs=yes
4148   fi
4149 fi
4150
4151 # check for fallocate
4152 fallocate=no
4153 cat > $TMPC << EOF
4154 #include <fcntl.h>
4155
4156 int main(void)
4157 {
4158     fallocate(0, 0, 0, 0);
4159     return 0;
4160 }
4161 EOF
4162 if compile_prog "" "" ; then
4163   fallocate=yes
4164 fi
4165
4166 # check for fallocate hole punching
4167 fallocate_punch_hole=no
4168 cat > $TMPC << EOF
4169 #include <fcntl.h>
4170 #include <linux/falloc.h>
4171
4172 int main(void)
4173 {
4174     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4175     return 0;
4176 }
4177 EOF
4178 if compile_prog "" "" ; then
4179   fallocate_punch_hole=yes
4180 fi
4181
4182 # check that fallocate supports range zeroing inside the file
4183 fallocate_zero_range=no
4184 cat > $TMPC << EOF
4185 #include <fcntl.h>
4186 #include <linux/falloc.h>
4187
4188 int main(void)
4189 {
4190     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4191     return 0;
4192 }
4193 EOF
4194 if compile_prog "" "" ; then
4195   fallocate_zero_range=yes
4196 fi
4197
4198 # check for posix_fallocate
4199 posix_fallocate=no
4200 cat > $TMPC << EOF
4201 #include <fcntl.h>
4202
4203 int main(void)
4204 {
4205     posix_fallocate(0, 0, 0);
4206     return 0;
4207 }
4208 EOF
4209 if compile_prog "" "" ; then
4210     posix_fallocate=yes
4211 fi
4212
4213 # check for sync_file_range
4214 sync_file_range=no
4215 cat > $TMPC << EOF
4216 #include <fcntl.h>
4217
4218 int main(void)
4219 {
4220     sync_file_range(0, 0, 0, 0);
4221     return 0;
4222 }
4223 EOF
4224 if compile_prog "" "" ; then
4225   sync_file_range=yes
4226 fi
4227
4228 # check for linux/fiemap.h and FS_IOC_FIEMAP
4229 fiemap=no
4230 cat > $TMPC << EOF
4231 #include <sys/ioctl.h>
4232 #include <linux/fs.h>
4233 #include <linux/fiemap.h>
4234
4235 int main(void)
4236 {
4237     ioctl(0, FS_IOC_FIEMAP, 0);
4238     return 0;
4239 }
4240 EOF
4241 if compile_prog "" "" ; then
4242   fiemap=yes
4243 fi
4244
4245 # check for dup3
4246 dup3=no
4247 cat > $TMPC << EOF
4248 #include <unistd.h>
4249
4250 int main(void)
4251 {
4252     dup3(0, 0, 0);
4253     return 0;
4254 }
4255 EOF
4256 if compile_prog "" "" ; then
4257   dup3=yes
4258 fi
4259
4260 # check for ppoll support
4261 ppoll=no
4262 cat > $TMPC << EOF
4263 #include <poll.h>
4264
4265 int main(void)
4266 {
4267     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4268     ppoll(&pfd, 1, 0, 0);
4269     return 0;
4270 }
4271 EOF
4272 if compile_prog "" "" ; then
4273   ppoll=yes
4274 fi
4275
4276 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4277 prctl_pr_set_timerslack=no
4278 cat > $TMPC << EOF
4279 #include <sys/prctl.h>
4280
4281 int main(void)
4282 {
4283     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4284     return 0;
4285 }
4286 EOF
4287 if compile_prog "" "" ; then
4288   prctl_pr_set_timerslack=yes
4289 fi
4290
4291 # check for epoll support
4292 epoll=no
4293 cat > $TMPC << EOF
4294 #include <sys/epoll.h>
4295
4296 int main(void)
4297 {
4298     epoll_create(0);
4299     return 0;
4300 }
4301 EOF
4302 if compile_prog "" "" ; then
4303   epoll=yes
4304 fi
4305
4306 # epoll_create1 is a later addition
4307 # so we must check separately for its presence
4308 epoll_create1=no
4309 cat > $TMPC << EOF
4310 #include <sys/epoll.h>
4311
4312 int main(void)
4313 {
4314     /* Note that we use epoll_create1 as a value, not as
4315      * a function being called. This is necessary so that on
4316      * old SPARC glibc versions where the function was present in
4317      * the library but not declared in the header file we will
4318      * fail the configure check. (Otherwise we will get a compiler
4319      * warning but not an error, and will proceed to fail the
4320      * qemu compile where we compile with -Werror.)
4321      */
4322     return (int)(uintptr_t)&epoll_create1;
4323 }
4324 EOF
4325 if compile_prog "" "" ; then
4326   epoll_create1=yes
4327 fi
4328
4329 # check for sendfile support
4330 sendfile=no
4331 cat > $TMPC << EOF
4332 #include <sys/sendfile.h>
4333
4334 int main(void)
4335 {
4336     return sendfile(0, 0, 0, 0);
4337 }
4338 EOF
4339 if compile_prog "" "" ; then
4340   sendfile=yes
4341 fi
4342
4343 # check for timerfd support (glibc 2.8 and newer)
4344 timerfd=no
4345 cat > $TMPC << EOF
4346 #include <sys/timerfd.h>
4347
4348 int main(void)
4349 {
4350     return(timerfd_create(CLOCK_REALTIME, 0));
4351 }
4352 EOF
4353 if compile_prog "" "" ; then
4354   timerfd=yes
4355 fi
4356
4357 # check for setns and unshare support
4358 setns=no
4359 cat > $TMPC << EOF
4360 #include <sched.h>
4361
4362 int main(void)
4363 {
4364     int ret;
4365     ret = setns(0, 0);
4366     ret = unshare(0);
4367     return ret;
4368 }
4369 EOF
4370 if compile_prog "" "" ; then
4371   setns=yes
4372 fi
4373
4374 # clock_adjtime probe
4375 clock_adjtime=no
4376 cat > $TMPC <<EOF
4377 #include <time.h>
4378
4379 int main(void)
4380 {
4381     return clock_adjtime(0, 0);
4382 }
4383 EOF
4384 clock_adjtime=no
4385 if compile_prog "" "" ; then
4386   clock_adjtime=yes
4387 fi
4388
4389 # syncfs probe
4390 syncfs=no
4391 cat > $TMPC <<EOF
4392 #include <unistd.h>
4393
4394 int main(void)
4395 {
4396     return syncfs(0);
4397 }
4398 EOF
4399 syncfs=no
4400 if compile_prog "" "" ; then
4401   syncfs=yes
4402 fi
4403
4404 # Search for bswap_32 function
4405 byteswap_h=no
4406 cat > $TMPC << EOF
4407 #include <byteswap.h>
4408 int main(void) { return bswap_32(0); }
4409 EOF
4410 if compile_prog "" "" ; then
4411   byteswap_h=yes
4412 fi
4413
4414 # Search for bswap32 function
4415 bswap_h=no
4416 cat > $TMPC << EOF
4417 #include <sys/endian.h>
4418 #include <sys/types.h>
4419 #include <machine/bswap.h>
4420 int main(void) { return bswap32(0); }
4421 EOF
4422 if compile_prog "" "" ; then
4423   bswap_h=yes
4424 fi
4425
4426 ##########################################
4427 # Do we have libiscsi >= 1.9.0
4428 if test "$libiscsi" != "no" ; then
4429   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4430     libiscsi="yes"
4431     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4432     libiscsi_libs=$($pkg_config --libs libiscsi)
4433   else
4434     if test "$libiscsi" = "yes" ; then
4435       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4436     fi
4437     libiscsi="no"
4438   fi
4439 fi
4440
4441 ##########################################
4442 # Do we need librt
4443 # uClibc provides 2 versions of clock_gettime(), one with realtime
4444 # support and one without. This means that the clock_gettime() don't
4445 # need -lrt. We still need it for timer_create() so we check for this
4446 # function in addition.
4447 cat > $TMPC <<EOF
4448 #include <signal.h>
4449 #include <time.h>
4450 int main(void) {
4451   timer_create(CLOCK_REALTIME, NULL, NULL);
4452   return clock_gettime(CLOCK_REALTIME, NULL);
4453 }
4454 EOF
4455
4456 if compile_prog "" "" ; then
4457   :
4458 # we need pthread for static linking. use previous pthread test result
4459 elif compile_prog "" "$pthread_lib -lrt" ; then
4460   LIBS="$LIBS -lrt"
4461 fi
4462
4463 # Check whether we have openpty() in either libc or libutil
4464 cat > $TMPC << EOF
4465 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4466 int main(void) { return openpty(0, 0, 0, 0, 0); }
4467 EOF
4468
4469 have_openpty="no"
4470 if compile_prog "" "" ; then
4471   have_openpty="yes"
4472 else
4473   if compile_prog "" "-lutil" ; then
4474     have_openpty="yes"
4475   fi
4476 fi
4477
4478 ##########################################
4479 # spice probe
4480 if test "$spice" != "no" ; then
4481   cat > $TMPC << EOF
4482 #include <spice.h>
4483 int main(void) { spice_server_new(); return 0; }
4484 EOF
4485   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4486   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4487   if $pkg_config --atleast-version=0.12.5 spice-server && \
4488      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4489      compile_prog "$spice_cflags" "$spice_libs" ; then
4490     spice="yes"
4491   else
4492     if test "$spice" = "yes" ; then
4493       feature_not_found "spice" \
4494           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4495     fi
4496     spice="no"
4497   fi
4498 fi
4499
4500 # check for smartcard support
4501 if test "$smartcard" != "no"; then
4502     if $pkg_config --atleast-version=2.5.1 libcacard; then
4503         libcacard_cflags=$($pkg_config --cflags libcacard)
4504         libcacard_libs=$($pkg_config --libs libcacard)
4505         smartcard="yes"
4506     else
4507         if test "$smartcard" = "yes"; then
4508             feature_not_found "smartcard" "Install libcacard devel"
4509         fi
4510         smartcard="no"
4511     fi
4512 fi
4513
4514 # check for libusb
4515 if test "$libusb" != "no" ; then
4516     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4517         libusb="yes"
4518         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4519         libusb_libs=$($pkg_config --libs libusb-1.0)
4520     else
4521         if test "$libusb" = "yes"; then
4522             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4523         fi
4524         libusb="no"
4525     fi
4526 fi
4527
4528 # check for usbredirparser for usb network redirection support
4529 if test "$usb_redir" != "no" ; then
4530     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4531         usb_redir="yes"
4532         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4533         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4534     else
4535         if test "$usb_redir" = "yes"; then
4536             feature_not_found "usb-redir" "Install usbredir devel"
4537         fi
4538         usb_redir="no"
4539     fi
4540 fi
4541
4542 ##########################################
4543 # check if we have VSS SDK headers for win
4544
4545 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4546         test "$vss_win32_sdk" != "no" ; then
4547   case "$vss_win32_sdk" in
4548     "")   vss_win32_include="-isystem $source_path" ;;
4549     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4550           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4551           vss_win32_include="-isystem $source_path/.sdk/vss"
4552           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4553           ;;
4554     *)    vss_win32_include="-isystem $vss_win32_sdk"
4555   esac
4556   cat > $TMPC << EOF
4557 #define __MIDL_user_allocate_free_DEFINED__
4558 #include <inc/win2003/vss.h>
4559 int main(void) { return VSS_CTX_BACKUP; }
4560 EOF
4561   if compile_prog "$vss_win32_include" "" ; then
4562     guest_agent_with_vss="yes"
4563     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4564     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4565     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4566   else
4567     if test "$vss_win32_sdk" != "" ; then
4568       echo "ERROR: Please download and install Microsoft VSS SDK:"
4569       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4570       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4571       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4572       echo "ERROR: The headers are extracted in the directory \`inc'."
4573       feature_not_found "VSS support"
4574     fi
4575     guest_agent_with_vss="no"
4576   fi
4577 fi
4578
4579 ##########################################
4580 # lookup Windows platform SDK (if not specified)
4581 # The SDK is needed only to build .tlb (type library) file of guest agent
4582 # VSS provider from the source. It is usually unnecessary because the
4583 # pre-compiled .tlb file is included.
4584
4585 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4586         test "$guest_agent_with_vss" = "yes" ; then
4587   if test -z "$win_sdk"; then
4588     programfiles="$PROGRAMFILES"
4589     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4590     if test -n "$programfiles"; then
4591       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4592     else
4593       feature_not_found "Windows SDK"
4594     fi
4595   elif test "$win_sdk" = "no"; then
4596     win_sdk=""
4597   fi
4598 fi
4599
4600 ##########################################
4601 # check if mingw environment provides a recent ntddscsi.h
4602 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4603   cat > $TMPC << EOF
4604 #include <windows.h>
4605 #include <ntddscsi.h>
4606 int main(void) {
4607 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4608 #error Missing required ioctl definitions
4609 #endif
4610   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4611   return addr.Lun;
4612 }
4613 EOF
4614   if compile_prog "" "" ; then
4615     guest_agent_ntddscsi=yes
4616     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4617   fi
4618 fi
4619
4620 ##########################################
4621 # virgl renderer probe
4622
4623 if test "$virglrenderer" != "no" ; then
4624   cat > $TMPC << EOF
4625 #include <virglrenderer.h>
4626 int main(void) { virgl_renderer_poll(); return 0; }
4627 EOF
4628   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4629   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4630   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4631   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4632      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4633     virglrenderer="yes"
4634   else
4635     if test "$virglrenderer" = "yes" ; then
4636       feature_not_found "virglrenderer"
4637     fi
4638     virglrenderer="no"
4639   fi
4640 fi
4641
4642 ##########################################
4643 # capstone
4644
4645 case "$capstone" in
4646   auto | enabled | internal)
4647     # Simpler to always update submodule, even if not needed.
4648     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
4649       git_submodules="${git_submodules} capstone"
4650     fi
4651     ;;
4652 esac
4653
4654 ##########################################
4655 # check if we have fdatasync
4656
4657 fdatasync=no
4658 cat > $TMPC << EOF
4659 #include <unistd.h>
4660 int main(void) {
4661 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4662 return fdatasync(0);
4663 #else
4664 #error Not supported
4665 #endif
4666 }
4667 EOF
4668 if compile_prog "" "" ; then
4669     fdatasync=yes
4670 fi
4671
4672 ##########################################
4673 # check if we have madvise
4674
4675 madvise=no
4676 cat > $TMPC << EOF
4677 #include <sys/types.h>
4678 #include <sys/mman.h>
4679 #include <stddef.h>
4680 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4681 EOF
4682 if compile_prog "" "" ; then
4683     madvise=yes
4684 fi
4685
4686 ##########################################
4687 # check if we have posix_madvise
4688
4689 posix_madvise=no
4690 cat > $TMPC << EOF
4691 #include <sys/mman.h>
4692 #include <stddef.h>
4693 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4694 EOF
4695 if compile_prog "" "" ; then
4696     posix_madvise=yes
4697 fi
4698
4699 ##########################################
4700 # check if we have posix_memalign()
4701
4702 posix_memalign=no
4703 cat > $TMPC << EOF
4704 #include <stdlib.h>
4705 int main(void) {
4706     void *p;
4707     return posix_memalign(&p, 8, 8);
4708 }
4709 EOF
4710 if compile_prog "" "" ; then
4711     posix_memalign=yes
4712 fi
4713
4714 ##########################################
4715 # check if we have posix_syslog
4716
4717 posix_syslog=no
4718 cat > $TMPC << EOF
4719 #include <syslog.h>
4720 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4721 EOF
4722 if compile_prog "" "" ; then
4723     posix_syslog=yes
4724 fi
4725
4726 ##########################################
4727 # check if we have sem_timedwait
4728
4729 sem_timedwait=no
4730 cat > $TMPC << EOF
4731 #include <semaphore.h>
4732 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4733 EOF
4734 if compile_prog "" "" ; then
4735     sem_timedwait=yes
4736 fi
4737
4738 ##########################################
4739 # check if we have strchrnul
4740
4741 strchrnul=no
4742 cat > $TMPC << EOF
4743 #include <string.h>
4744 int main(void);
4745 // Use a haystack that the compiler shouldn't be able to constant fold
4746 char *haystack = (char*)&main;
4747 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4748 EOF
4749 if compile_prog "" "" ; then
4750     strchrnul=yes
4751 fi
4752
4753 #########################################
4754 # check if we have st_atim
4755
4756 st_atim=no
4757 cat > $TMPC << EOF
4758 #include <sys/stat.h>
4759 #include <stddef.h>
4760 int main(void) { return offsetof(struct stat, st_atim); }
4761 EOF
4762 if compile_prog "" "" ; then
4763     st_atim=yes
4764 fi
4765
4766 ##########################################
4767 # check if trace backend exists
4768
4769 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4770 if test "$?" -ne 0 ; then
4771   error_exit "invalid trace backends" \
4772       "Please choose supported trace backends."
4773 fi
4774
4775 ##########################################
4776 # For 'ust' backend, test if ust headers are present
4777 if have_backend "ust"; then
4778   cat > $TMPC << EOF
4779 #include <lttng/tracepoint.h>
4780 int main(void) { return 0; }
4781 EOF
4782   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4783     if $pkg_config lttng-ust --exists; then
4784       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4785     else
4786       lttng_ust_libs="-llttng-ust -ldl"
4787     fi
4788     if $pkg_config liburcu-bp --exists; then
4789       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4790     else
4791       urcu_bp_libs="-lurcu-bp"
4792     fi
4793   else
4794     error_exit "Trace backend 'ust' missing lttng-ust header files"
4795   fi
4796 fi
4797
4798 ##########################################
4799 # For 'dtrace' backend, test if 'dtrace' command is present
4800 if have_backend "dtrace"; then
4801   if ! has 'dtrace' ; then
4802     error_exit "dtrace command is not found in PATH $PATH"
4803   fi
4804   trace_backend_stap="no"
4805   if has 'stap' ; then
4806     trace_backend_stap="yes"
4807
4808     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4809     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4810     # instead. QEMU --enable-modules depends on this because the SystemTap
4811     # semaphores are linked into the main binary and not the module's shared
4812     # object.
4813     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4814   fi
4815 fi
4816
4817 ##########################################
4818 # check and set a backend for coroutine
4819
4820 # We prefer ucontext, but it's not always possible. The fallback
4821 # is sigcontext. On Windows the only valid backend is the Windows
4822 # specific one.
4823
4824 ucontext_works=no
4825 if test "$darwin" != "yes"; then
4826   cat > $TMPC << EOF
4827 #include <ucontext.h>
4828 #ifdef __stub_makecontext
4829 #error Ignoring glibc stub makecontext which will always fail
4830 #endif
4831 int main(void) { makecontext(0, 0, 0); return 0; }
4832 EOF
4833   if compile_prog "" "" ; then
4834     ucontext_works=yes
4835   fi
4836 fi
4837
4838 if test "$coroutine" = ""; then
4839   if test "$mingw32" = "yes"; then
4840     coroutine=win32
4841   elif test "$ucontext_works" = "yes"; then
4842     coroutine=ucontext
4843   else
4844     coroutine=sigaltstack
4845   fi
4846 else
4847   case $coroutine in
4848   windows)
4849     if test "$mingw32" != "yes"; then
4850       error_exit "'windows' coroutine backend only valid for Windows"
4851     fi
4852     # Unfortunately the user visible backend name doesn't match the
4853     # coroutine-*.c filename for this case, so we have to adjust it here.
4854     coroutine=win32
4855     ;;
4856   ucontext)
4857     if test "$ucontext_works" != "yes"; then
4858       feature_not_found "ucontext"
4859     fi
4860     ;;
4861   sigaltstack)
4862     if test "$mingw32" = "yes"; then
4863       error_exit "only the 'windows' coroutine backend is valid for Windows"
4864     fi
4865     ;;
4866   *)
4867     error_exit "unknown coroutine backend $coroutine"
4868     ;;
4869   esac
4870 fi
4871
4872 if test "$coroutine_pool" = ""; then
4873   coroutine_pool=yes
4874 fi
4875
4876 if test "$debug_stack_usage" = "yes"; then
4877   if test "$coroutine_pool" = "yes"; then
4878     echo "WARN: disabling coroutine pool for stack usage debugging"
4879     coroutine_pool=no
4880   fi
4881 fi
4882
4883 ##################################################
4884 # SafeStack
4885
4886
4887 if test "$safe_stack" = "yes"; then
4888 cat > $TMPC << EOF
4889 int main(int argc, char *argv[])
4890 {
4891 #if ! __has_feature(safe_stack)
4892 #error SafeStack Disabled
4893 #endif
4894     return 0;
4895 }
4896 EOF
4897   flag="-fsanitize=safe-stack"
4898   # Check that safe-stack is supported and enabled.
4899   if compile_prog "-Werror $flag" "$flag"; then
4900     # Flag needed both at compilation and at linking
4901     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4902     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4903   else
4904     error_exit "SafeStack not supported by your compiler"
4905   fi
4906   if test "$coroutine" != "ucontext"; then
4907     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4908   fi
4909 else
4910 cat > $TMPC << EOF
4911 int main(int argc, char *argv[])
4912 {
4913 #if defined(__has_feature)
4914 #if __has_feature(safe_stack)
4915 #error SafeStack Enabled
4916 #endif
4917 #endif
4918     return 0;
4919 }
4920 EOF
4921 if test "$safe_stack" = "no"; then
4922   # Make sure that safe-stack is disabled
4923   if ! compile_prog "-Werror" ""; then
4924     # SafeStack was already enabled, try to explicitly remove the feature
4925     flag="-fno-sanitize=safe-stack"
4926     if ! compile_prog "-Werror $flag" "$flag"; then
4927       error_exit "Configure cannot disable SafeStack"
4928     fi
4929     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4930     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4931   fi
4932 else # "$safe_stack" = ""
4933   # Set safe_stack to yes or no based on pre-existing flags
4934   if compile_prog "-Werror" ""; then
4935     safe_stack="no"
4936   else
4937     safe_stack="yes"
4938     if test "$coroutine" != "ucontext"; then
4939       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4940     fi
4941   fi
4942 fi
4943 fi
4944
4945 ##########################################
4946 # check if we have open_by_handle_at
4947
4948 open_by_handle_at=no
4949 cat > $TMPC << EOF
4950 #include <fcntl.h>
4951 #if !defined(AT_EMPTY_PATH)
4952 # error missing definition
4953 #else
4954 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4955 #endif
4956 EOF
4957 if compile_prog "" "" ; then
4958     open_by_handle_at=yes
4959 fi
4960
4961 ########################################
4962 # check if we have linux/magic.h
4963
4964 linux_magic_h=no
4965 cat > $TMPC << EOF
4966 #include <linux/magic.h>
4967 int main(void) {
4968   return 0;
4969 }
4970 EOF
4971 if compile_prog "" "" ; then
4972     linux_magic_h=yes
4973 fi
4974
4975 ########################################
4976 # check if we have valgrind/valgrind.h
4977
4978 valgrind_h=no
4979 cat > $TMPC << EOF
4980 #include <valgrind/valgrind.h>
4981 int main(void) {
4982   return 0;
4983 }
4984 EOF
4985 if compile_prog "" "" ; then
4986     valgrind_h=yes
4987 fi
4988
4989 ########################################
4990 # check if environ is declared
4991
4992 has_environ=no
4993 cat > $TMPC << EOF
4994 #include <unistd.h>
4995 int main(void) {
4996     environ = 0;
4997     return 0;
4998 }
4999 EOF
5000 if compile_prog "" "" ; then
5001     has_environ=yes
5002 fi
5003
5004 ########################################
5005 # check if cpuid.h is usable.
5006
5007 cat > $TMPC << EOF
5008 #include <cpuid.h>
5009 int main(void) {
5010     unsigned a, b, c, d;
5011     int max = __get_cpuid_max(0, 0);
5012
5013     if (max >= 1) {
5014         __cpuid(1, a, b, c, d);
5015     }
5016
5017     if (max >= 7) {
5018         __cpuid_count(7, 0, a, b, c, d);
5019     }
5020
5021     return 0;
5022 }
5023 EOF
5024 if compile_prog "" "" ; then
5025     cpuid_h=yes
5026 fi
5027
5028 ##########################################
5029 # avx2 optimization requirement check
5030 #
5031 # There is no point enabling this if cpuid.h is not usable,
5032 # since we won't be able to select the new routines.
5033
5034 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5035   cat > $TMPC << EOF
5036 #pragma GCC push_options
5037 #pragma GCC target("avx2")
5038 #include <cpuid.h>
5039 #include <immintrin.h>
5040 static int bar(void *a) {
5041     __m256i x = *(__m256i *)a;
5042     return _mm256_testz_si256(x, x);
5043 }
5044 int main(int argc, char *argv[]) { return bar(argv[0]); }
5045 EOF
5046   if compile_object "" ; then
5047     avx2_opt="yes"
5048   else
5049     avx2_opt="no"
5050   fi
5051 fi
5052
5053 ##########################################
5054 # avx512f optimization requirement check
5055 #
5056 # There is no point enabling this if cpuid.h is not usable,
5057 # since we won't be able to select the new routines.
5058 # by default, it is turned off.
5059 # if user explicitly want to enable it, check environment
5060
5061 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5062   cat > $TMPC << EOF
5063 #pragma GCC push_options
5064 #pragma GCC target("avx512f")
5065 #include <cpuid.h>
5066 #include <immintrin.h>
5067 static int bar(void *a) {
5068     __m512i x = *(__m512i *)a;
5069     return _mm512_test_epi64_mask(x, x);
5070 }
5071 int main(int argc, char *argv[])
5072 {
5073         return bar(argv[0]);
5074 }
5075 EOF
5076   if ! compile_object "" ; then
5077     avx512f_opt="no"
5078   fi
5079 else
5080   avx512f_opt="no"
5081 fi
5082
5083 ########################################
5084 # check if __[u]int128_t is usable.
5085
5086 int128=no
5087 cat > $TMPC << EOF
5088 __int128_t a;
5089 __uint128_t b;
5090 int main (void) {
5091   a = a + b;
5092   b = a * b;
5093   a = a * a;
5094   return 0;
5095 }
5096 EOF
5097 if compile_prog "" "" ; then
5098     int128=yes
5099 fi
5100
5101 #########################################
5102 # See if 128-bit atomic operations are supported.
5103
5104 atomic128=no
5105 if test "$int128" = "yes"; then
5106   cat > $TMPC << EOF
5107 int main(void)
5108 {
5109   unsigned __int128 x = 0, y = 0;
5110   y = __atomic_load_16(&x, 0);
5111   __atomic_store_16(&x, y, 0);
5112   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5113   return 0;
5114 }
5115 EOF
5116   if compile_prog "" "" ; then
5117     atomic128=yes
5118   fi
5119 fi
5120
5121 cmpxchg128=no
5122 if test "$int128" = yes && test "$atomic128" = no; then
5123   cat > $TMPC << EOF
5124 int main(void)
5125 {
5126   unsigned __int128 x = 0, y = 0;
5127   __sync_val_compare_and_swap_16(&x, y, x);
5128   return 0;
5129 }
5130 EOF
5131   if compile_prog "" "" ; then
5132     cmpxchg128=yes
5133   fi
5134 fi
5135
5136 #########################################
5137 # See if 64-bit atomic operations are supported.
5138 # Note that without __atomic builtins, we can only
5139 # assume atomic loads/stores max at pointer size.
5140
5141 cat > $TMPC << EOF
5142 #include <stdint.h>
5143 int main(void)
5144 {
5145   uint64_t x = 0, y = 0;
5146 #ifdef __ATOMIC_RELAXED
5147   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5148   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5149   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5150   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5151   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5152 #else
5153   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5154   __sync_lock_test_and_set(&x, y);
5155   __sync_val_compare_and_swap(&x, y, 0);
5156   __sync_fetch_and_add(&x, y);
5157 #endif
5158   return 0;
5159 }
5160 EOF
5161 if compile_prog "" "" ; then
5162   atomic64=yes
5163 fi
5164
5165 #########################################
5166 # See if --dynamic-list is supported by the linker
5167 ld_dynamic_list="no"
5168 if test "$static" = "no" ; then
5169     cat > $TMPTXT <<EOF
5170 {
5171   foo;
5172 };
5173 EOF
5174
5175     cat > $TMPC <<EOF
5176 #include <stdio.h>
5177 void foo(void);
5178
5179 void foo(void)
5180 {
5181   printf("foo\n");
5182 }
5183
5184 int main(void)
5185 {
5186   foo();
5187   return 0;
5188 }
5189 EOF
5190
5191     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5192         ld_dynamic_list="yes"
5193     fi
5194 fi
5195
5196 #########################################
5197 # See if -exported_symbols_list is supported by the linker
5198
5199 ld_exported_symbols_list="no"
5200 if test "$static" = "no" ; then
5201     cat > $TMPTXT <<EOF
5202   _foo
5203 EOF
5204
5205     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5206         ld_exported_symbols_list="yes"
5207     fi
5208 fi
5209
5210 if  test "$plugins" = "yes" &&
5211     test "$ld_dynamic_list" = "no" &&
5212     test "$ld_exported_symbols_list" = "no" ; then
5213   error_exit \
5214       "Plugin support requires dynamic linking and specifying a set of symbols " \
5215       "that are exported to plugins. Unfortunately your linker doesn't " \
5216       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5217       "for this purpose. You can't build with --static."
5218 fi
5219
5220 ########################################
5221 # See if __attribute__((alias)) is supported.
5222 # This false for Xcode 9, but has been remedied for Xcode 10.
5223 # Unfortunately, travis uses Xcode 9 by default.
5224
5225 attralias=no
5226 cat > $TMPC << EOF
5227 int x = 1;
5228 extern const int y __attribute__((alias("x")));
5229 int main(void) { return 0; }
5230 EOF
5231 if compile_prog "" "" ; then
5232     attralias=yes
5233 fi
5234
5235 ########################################
5236 # check if getauxval is available.
5237
5238 getauxval=no
5239 cat > $TMPC << EOF
5240 #include <sys/auxv.h>
5241 int main(void) {
5242   return getauxval(AT_HWCAP) == 0;
5243 }
5244 EOF
5245 if compile_prog "" "" ; then
5246     getauxval=yes
5247 fi
5248
5249 ########################################
5250 # check if ccache is interfering with
5251 # semantic analysis of macros
5252
5253 unset CCACHE_CPP2
5254 ccache_cpp2=no
5255 cat > $TMPC << EOF
5256 static const int Z = 1;
5257 #define fn() ({ Z; })
5258 #define TAUT(X) ((X) == Z)
5259 #define PAREN(X, Y) (X == Y)
5260 #define ID(X) (X)
5261 int main(int argc, char *argv[])
5262 {
5263     int x = 0, y = 0;
5264     x = ID(x);
5265     x = fn();
5266     fn();
5267     if (PAREN(x, y)) return 0;
5268     if (TAUT(Z)) return 0;
5269     return 0;
5270 }
5271 EOF
5272
5273 if ! compile_object "-Werror"; then
5274     ccache_cpp2=yes
5275 fi
5276
5277 #################################################
5278 # clang does not support glibc + FORTIFY_SOURCE.
5279
5280 if test "$fortify_source" != "no"; then
5281   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5282     fortify_source="no";
5283   elif test -n "$cxx" && has $cxx &&
5284        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5285     fortify_source="no";
5286   else
5287     fortify_source="yes"
5288   fi
5289 fi
5290
5291 ###############################################
5292 # Check if copy_file_range is provided by glibc
5293 have_copy_file_range=no
5294 cat > $TMPC << EOF
5295 #include <unistd.h>
5296 int main(void) {
5297   copy_file_range(0, NULL, 0, NULL, 0, 0);
5298   return 0;
5299 }
5300 EOF
5301 if compile_prog "" "" ; then
5302     have_copy_file_range=yes
5303 fi
5304
5305 ##########################################
5306 # check if struct fsxattr is available via linux/fs.h
5307
5308 have_fsxattr=no
5309 cat > $TMPC << EOF
5310 #include <linux/fs.h>
5311 struct fsxattr foo;
5312 int main(void) {
5313   return 0;
5314 }
5315 EOF
5316 if compile_prog "" "" ; then
5317     have_fsxattr=yes
5318 fi
5319
5320 ##########################################
5321 # check for usable membarrier system call
5322 if test "$membarrier" = "yes"; then
5323     have_membarrier=no
5324     if test "$mingw32" = "yes" ; then
5325         have_membarrier=yes
5326     elif test "$linux" = "yes" ; then
5327         cat > $TMPC << EOF
5328     #include <linux/membarrier.h>
5329     #include <sys/syscall.h>
5330     #include <unistd.h>
5331     #include <stdlib.h>
5332     int main(void) {
5333         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5334         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5335         exit(0);
5336     }
5337 EOF
5338         if compile_prog "" "" ; then
5339             have_membarrier=yes
5340         fi
5341     fi
5342     if test "$have_membarrier" = "no"; then
5343       feature_not_found "membarrier" "membarrier system call not available"
5344     fi
5345 else
5346     # Do not enable it by default even for Mingw32, because it doesn't
5347     # work on Wine.
5348     membarrier=no
5349 fi
5350
5351 ##########################################
5352 # check if rtnetlink.h exists and is useful
5353 have_rtnetlink=no
5354 cat > $TMPC << EOF
5355 #include <linux/rtnetlink.h>
5356 int main(void) {
5357   return IFLA_PROTO_DOWN;
5358 }
5359 EOF
5360 if compile_prog "" "" ; then
5361     have_rtnetlink=yes
5362 fi
5363
5364 ##########################################
5365 # check for usable AF_VSOCK environment
5366 have_af_vsock=no
5367 cat > $TMPC << EOF
5368 #include <errno.h>
5369 #include <sys/types.h>
5370 #include <sys/socket.h>
5371 #if !defined(AF_VSOCK)
5372 # error missing AF_VSOCK flag
5373 #endif
5374 #include <linux/vm_sockets.h>
5375 int main(void) {
5376     int sock, ret;
5377     struct sockaddr_vm svm;
5378     socklen_t len = sizeof(svm);
5379     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5380     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5381     if ((ret == -1) && (errno == ENOTCONN)) {
5382         return 0;
5383     }
5384     return -1;
5385 }
5386 EOF
5387 if compile_prog "" "" ; then
5388     have_af_vsock=yes
5389 fi
5390
5391 ##########################################
5392 # check for usable AF_ALG environment
5393 have_afalg=no
5394 cat > $TMPC << EOF
5395 #include <errno.h>
5396 #include <sys/types.h>
5397 #include <sys/socket.h>
5398 #include <linux/if_alg.h>
5399 int main(void) {
5400     int sock;
5401     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5402     return sock;
5403 }
5404 EOF
5405 if compile_prog "" "" ; then
5406     have_afalg=yes
5407 fi
5408 if test "$crypto_afalg" = "yes"
5409 then
5410     if test "$have_afalg" != "yes"
5411     then
5412         error_exit "AF_ALG requested but could not be detected"
5413     fi
5414 fi
5415
5416
5417 #################################################
5418 # check for sysmacros.h
5419
5420 have_sysmacros=no
5421 cat > $TMPC << EOF
5422 #include <sys/sysmacros.h>
5423 int main(void) {
5424     return makedev(0, 0);
5425 }
5426 EOF
5427 if compile_prog "" "" ; then
5428     have_sysmacros=yes
5429 fi
5430
5431 ##########################################
5432 # check for _Static_assert()
5433
5434 have_static_assert=no
5435 cat > $TMPC << EOF
5436 _Static_assert(1, "success");
5437 int main(void) {
5438     return 0;
5439 }
5440 EOF
5441 if compile_prog "" "" ; then
5442     have_static_assert=yes
5443 fi
5444
5445 ##########################################
5446 # check for utmpx.h, it is missing e.g. on OpenBSD
5447
5448 have_utmpx=no
5449 cat > $TMPC << EOF
5450 #include <utmpx.h>
5451 struct utmpx user_info;
5452 int main(void) {
5453     return 0;
5454 }
5455 EOF
5456 if compile_prog "" "" ; then
5457     have_utmpx=yes
5458 fi
5459
5460 ##########################################
5461 # check for getrandom()
5462
5463 have_getrandom=no
5464 cat > $TMPC << EOF
5465 #include <sys/random.h>
5466 int main(void) {
5467     return getrandom(0, 0, GRND_NONBLOCK);
5468 }
5469 EOF
5470 if compile_prog "" "" ; then
5471     have_getrandom=yes
5472 fi
5473
5474 ##########################################
5475 # checks for sanitizers
5476
5477 have_asan=no
5478 have_ubsan=no
5479 have_asan_iface_h=no
5480 have_asan_iface_fiber=no
5481
5482 if test "$sanitizers" = "yes" ; then
5483   write_c_skeleton
5484   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5485       have_asan=yes
5486   fi
5487
5488   # we could use a simple skeleton for flags checks, but this also
5489   # detect the static linking issue of ubsan, see also:
5490   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5491   cat > $TMPC << EOF
5492 #include <stdlib.h>
5493 int main(void) {
5494     void *tmp = malloc(10);
5495     if (tmp != NULL) {
5496         return *(int *)(tmp + 2);
5497     }
5498     return 1;
5499 }
5500 EOF
5501   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5502       have_ubsan=yes
5503   fi
5504
5505   if check_include "sanitizer/asan_interface.h" ; then
5506       have_asan_iface_h=yes
5507   fi
5508
5509   cat > $TMPC << EOF
5510 #include <sanitizer/asan_interface.h>
5511 int main(void) {
5512   __sanitizer_start_switch_fiber(0, 0, 0);
5513   return 0;
5514 }
5515 EOF
5516   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5517       have_asan_iface_fiber=yes
5518   fi
5519 fi
5520
5521 ##########################################
5522 # checks for fuzzer
5523 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5524   write_c_fuzzer_skeleton
5525   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5526     have_fuzzer=yes
5527   else
5528     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5529     exit 1
5530   fi
5531 fi
5532
5533 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5534 # keep it separate until that is not the case.
5535 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5536   error_exit "TSAN is not supported with other sanitiziers."
5537 fi
5538 have_tsan=no
5539 have_tsan_iface_fiber=no
5540 if test "$tsan" = "yes" ; then
5541   write_c_skeleton
5542   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5543       have_tsan=yes
5544   fi
5545   cat > $TMPC << EOF
5546 #include <sanitizer/tsan_interface.h>
5547 int main(void) {
5548   __tsan_create_fiber(0);
5549   return 0;
5550 }
5551 EOF
5552   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5553       have_tsan_iface_fiber=yes
5554   fi
5555 fi
5556
5557 ##########################################
5558 # check for libpmem
5559
5560 if test "$libpmem" != "no"; then
5561         if $pkg_config --exists "libpmem"; then
5562                 libpmem="yes"
5563                 libpmem_libs=$($pkg_config --libs libpmem)
5564                 libpmem_cflags=$($pkg_config --cflags libpmem)
5565         else
5566                 if test "$libpmem" = "yes" ; then
5567                         feature_not_found "libpmem" "Install nvml or pmdk"
5568                 fi
5569                 libpmem="no"
5570         fi
5571 fi
5572
5573 ##########################################
5574 # check for libdaxctl
5575
5576 if test "$libdaxctl" != "no"; then
5577         if $pkg_config --atleast-version=57 "libdaxctl"; then
5578                 libdaxctl="yes"
5579                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5580                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5581         else
5582                 if test "$libdaxctl" = "yes" ; then
5583                         feature_not_found "libdaxctl" "Install libdaxctl"
5584                 fi
5585                 libdaxctl="no"
5586         fi
5587 fi
5588
5589 ##########################################
5590 # check for slirp
5591
5592 case "$slirp" in
5593   auto | enabled | internal)
5594     # Simpler to always update submodule, even if not needed.
5595     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5596       git_submodules="${git_submodules} slirp"
5597     fi
5598     ;;
5599 esac
5600
5601 ##########################################
5602 # check for usable __NR_keyctl syscall
5603
5604 if test "$linux" = "yes" ; then
5605
5606     have_keyring=no
5607     cat > $TMPC << EOF
5608 #include <errno.h>
5609 #include <asm/unistd.h>
5610 #include <linux/keyctl.h>
5611 #include <unistd.h>
5612 int main(void) {
5613     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5614 }
5615 EOF
5616     if compile_prog "" "" ; then
5617         have_keyring=yes
5618     fi
5619 fi
5620 if test "$secret_keyring" != "no"
5621 then
5622     if test "$have_keyring" = "yes"
5623     then
5624         secret_keyring=yes
5625     else
5626         if test "$secret_keyring" = "yes"
5627         then
5628             error_exit "syscall __NR_keyctl requested, \
5629 but not implemented on your system"
5630         else
5631             secret_keyring=no
5632         fi
5633     fi
5634 fi
5635
5636 ##########################################
5637 # End of CC checks
5638 # After here, no more $cc or $ld runs
5639
5640 write_c_skeleton
5641
5642 if test "$gcov" = "yes" ; then
5643   :
5644 elif test "$fortify_source" = "yes" ; then
5645   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5646   debug=no
5647 fi
5648
5649 case "$ARCH" in
5650 alpha)
5651   # Ensure there's only a single GP
5652   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5653 ;;
5654 esac
5655
5656 if test "$gprof" = "yes" ; then
5657   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5658   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5659 fi
5660
5661 if test "$have_asan" = "yes"; then
5662   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5663   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5664   if test "$have_asan_iface_h" = "no" ; then
5665       echo "ASAN build enabled, but ASAN header missing." \
5666            "Without code annotation, the report may be inferior."
5667   elif test "$have_asan_iface_fiber" = "no" ; then
5668       echo "ASAN build enabled, but ASAN header is too old." \
5669            "Without code annotation, the report may be inferior."
5670   fi
5671 fi
5672 if test "$have_tsan" = "yes" ; then
5673   if test "$have_tsan_iface_fiber" = "yes" ; then
5674     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5675     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5676   else
5677     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5678   fi
5679 elif test "$tsan" = "yes" ; then
5680   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5681 fi
5682 if test "$have_ubsan" = "yes"; then
5683   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5684   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5685 fi
5686
5687 ##########################################
5688 # Do we have libnfs
5689 if test "$libnfs" != "no" ; then
5690   if $pkg_config --atleast-version=1.9.3 libnfs; then
5691     libnfs="yes"
5692     libnfs_libs=$($pkg_config --libs libnfs)
5693   else
5694     if test "$libnfs" = "yes" ; then
5695       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
5696     fi
5697     libnfs="no"
5698   fi
5699 fi
5700
5701 ##########################################
5702
5703 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5704 if test "$solaris" = "no" && test "$tsan" = "no"; then
5705     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5706         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5707     fi
5708 fi
5709
5710 # Use ASLR, no-SEH and DEP if available
5711 if test "$mingw32" = "yes" ; then
5712     flags="--no-seh --nxcompat"
5713
5714     # Disable ASLR for debug builds to allow debugging with gdb
5715     if test "$debug" = "no" ; then
5716         flags="--dynamicbase $flags"
5717     fi
5718
5719     for flag in $flags; do
5720         if ld_has $flag ; then
5721             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5722         fi
5723     done
5724 fi
5725
5726 # We can only support ivshmem if we have eventfd
5727 if [ "$eventfd" = "yes" ]; then
5728   ivshmem=yes
5729 fi
5730
5731 if test "$softmmu" = yes ; then
5732   if test "$linux" = yes; then
5733     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
5734       virtfs=yes
5735     else
5736       if test "$virtfs" = yes; then
5737         error_exit "VirtFS requires libcap-ng devel and libattr devel"
5738       fi
5739       virtfs=no
5740     fi
5741   else
5742     if test "$virtfs" = yes; then
5743       error_exit "VirtFS is supported only on Linux"
5744     fi
5745     virtfs=no
5746   fi
5747 fi
5748
5749 # Probe for guest agent support/options
5750
5751 if [ "$guest_agent" != "no" ]; then
5752   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5753       guest_agent=no
5754   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5755       guest_agent=yes
5756   elif [ "$guest_agent" != yes ]; then
5757       guest_agent=no
5758   else
5759       error_exit "Guest agent is not supported on this platform"
5760   fi
5761 fi
5762
5763 # Guest agent Window MSI  package
5764
5765 if test "$guest_agent" != yes; then
5766   if test "$guest_agent_msi" = yes; then
5767     error_exit "MSI guest agent package requires guest agent enabled"
5768   fi
5769   guest_agent_msi=no
5770 elif test "$mingw32" != "yes"; then
5771   if test "$guest_agent_msi" = "yes"; then
5772     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
5773   fi
5774   guest_agent_msi=no
5775 elif ! has wixl; then
5776   if test "$guest_agent_msi" = "yes"; then
5777     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
5778   fi
5779   guest_agent_msi=no
5780 else
5781   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
5782   # disabled explicitly
5783   if test "$guest_agent_msi" != "no"; then
5784     guest_agent_msi=yes
5785   fi
5786 fi
5787
5788 if test "$guest_agent_msi" = "yes"; then
5789   if test "$guest_agent_with_vss" = "yes"; then
5790     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
5791   fi
5792
5793   if test "$QEMU_GA_MANUFACTURER" = ""; then
5794     QEMU_GA_MANUFACTURER=QEMU
5795   fi
5796
5797   if test "$QEMU_GA_DISTRO" = ""; then
5798     QEMU_GA_DISTRO=Linux
5799   fi
5800
5801   if test "$QEMU_GA_VERSION" = ""; then
5802       QEMU_GA_VERSION=$(cat $source_path/VERSION)
5803   fi
5804
5805   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
5806
5807   case "$cpu" in
5808   x86_64)
5809     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
5810     ;;
5811   i386)
5812     QEMU_GA_MSI_ARCH="-D Arch=32"
5813     ;;
5814   *)
5815     error_exit "CPU $cpu not supported for building installation package"
5816     ;;
5817   esac
5818 fi
5819
5820 # Mac OS X ships with a broken assembler
5821 roms=
5822 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5823         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5824         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5825     # Different host OS linkers have different ideas about the name of the ELF
5826     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5827     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5828     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5829         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5830             ld_i386_emulation="$emu"
5831             roms="optionrom"
5832             break
5833         fi
5834     done
5835 fi
5836
5837 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5838 if test "$cpu" = "s390x" ; then
5839   write_c_skeleton
5840   if compile_prog "-march=z900" ""; then
5841     roms="$roms s390-ccw"
5842     # SLOF is required for building the s390-ccw firmware on s390x,
5843     # since it is using the libnet code from SLOF for network booting.
5844     if test -e "${source_path}/.git" ; then
5845       git_submodules="${git_submodules} roms/SLOF"
5846     fi
5847   fi
5848 fi
5849
5850 # Check that the C++ compiler exists and works with the C compiler.
5851 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5852 if has $cxx; then
5853     cat > $TMPC <<EOF
5854 int c_function(void);
5855 int main(void) { return c_function(); }
5856 EOF
5857
5858     compile_object
5859
5860     cat > $TMPCXX <<EOF
5861 extern "C" {
5862    int c_function(void);
5863 }
5864 int c_function(void) { return 42; }
5865 EOF
5866
5867     update_cxxflags
5868
5869     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5870         # C++ compiler $cxx works ok with C compiler $cc
5871         :
5872     else
5873         echo "C++ compiler $cxx does not work with C compiler $cc"
5874         echo "Disabling C++ specific optional code"
5875         cxx=
5876     fi
5877 else
5878     echo "No C++ compiler available; disabling C++ specific optional code"
5879     cxx=
5880 fi
5881
5882 if test $git_update = 'yes' ; then
5883     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
5884 fi
5885
5886 config_host_mak="config-host.mak"
5887
5888 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5889 echo >> $config_host_mak
5890
5891 echo all: >> $config_host_mak
5892 echo "GIT=$git" >> $config_host_mak
5893 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5894 echo "GIT_UPDATE=$git_update" >> $config_host_mak
5895
5896 echo "ARCH=$ARCH" >> $config_host_mak
5897
5898 if test "$default_devices" = "yes" ; then
5899   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
5900 else
5901   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
5902 fi
5903 if test "$debug_tcg" = "yes" ; then
5904   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5905 fi
5906 if test "$strip_opt" = "yes" ; then
5907   echo "STRIP=${strip}" >> $config_host_mak
5908 fi
5909 if test "$bigendian" = "yes" ; then
5910   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5911 fi
5912 if test "$mingw32" = "yes" ; then
5913   echo "CONFIG_WIN32=y" >> $config_host_mak
5914   rc_version=$(cat $source_path/VERSION)
5915   version_major=${rc_version%%.*}
5916   rc_version=${rc_version#*.}
5917   version_minor=${rc_version%%.*}
5918   rc_version=${rc_version#*.}
5919   version_subminor=${rc_version%%.*}
5920   version_micro=0
5921   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5922   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5923   if test "$guest_agent_with_vss" = "yes" ; then
5924     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5925     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5926     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5927   fi
5928   if test "$guest_agent_ntddscsi" = "yes" ; then
5929     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5930   fi
5931   if test "$guest_agent_msi" = "yes"; then
5932     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
5933     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5934     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
5935     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
5936     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5937     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5938     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5939   fi
5940 else
5941   echo "CONFIG_POSIX=y" >> $config_host_mak
5942 fi
5943
5944 if test "$linux" = "yes" ; then
5945   echo "CONFIG_LINUX=y" >> $config_host_mak
5946 fi
5947
5948 if test "$darwin" = "yes" ; then
5949   echo "CONFIG_DARWIN=y" >> $config_host_mak
5950 fi
5951
5952 if test "$solaris" = "yes" ; then
5953   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5954 fi
5955 if test "$haiku" = "yes" ; then
5956   echo "CONFIG_HAIKU=y" >> $config_host_mak
5957 fi
5958 if test "$static" = "yes" ; then
5959   echo "CONFIG_STATIC=y" >> $config_host_mak
5960 fi
5961 if test "$profiler" = "yes" ; then
5962   echo "CONFIG_PROFILER=y" >> $config_host_mak
5963 fi
5964 if test "$want_tools" = "yes" ; then
5965   echo "CONFIG_TOOLS=y" >> $config_host_mak
5966 fi
5967 if test "$guest_agent" = "yes" ; then
5968   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5969 fi
5970 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5971 if test "$vde" = "yes" ; then
5972   echo "CONFIG_VDE=y" >> $config_host_mak
5973   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5974 fi
5975 if test "$netmap" = "yes" ; then
5976   echo "CONFIG_NETMAP=y" >> $config_host_mak
5977 fi
5978 if test "$l2tpv3" = "yes" ; then
5979   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5980 fi
5981 if test "$gprof" = "yes" ; then
5982   echo "CONFIG_GPROF=y" >> $config_host_mak
5983 fi
5984 if test "$cap_ng" = "yes" ; then
5985   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
5986   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
5987 fi
5988 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5989 for drv in $audio_drv_list; do
5990     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5991     echo "$def=y" >> $config_host_mak
5992 done
5993 if test "$alsa" = "yes" ; then
5994     echo "CONFIG_ALSA=y" >> $config_host_mak
5995 fi
5996 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
5997 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
5998 if test "$libpulse" = "yes" ; then
5999     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
6000 fi
6001 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6002 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6003 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6004 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6005 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6006 if test "$libjack" = "yes" ; then
6007     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6008 fi
6009 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6010 if test "$audio_win_int" = "yes" ; then
6011   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6012 fi
6013 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6014 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6015 if test "$xfs" = "yes" ; then
6016   echo "CONFIG_XFS=y" >> $config_host_mak
6017 fi
6018 qemu_version=$(head $source_path/VERSION)
6019 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6020 echo "SRC_PATH=$source_path" >> $config_host_mak
6021 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6022 if test "$modules" = "yes"; then
6023   # $shacmd can generate a hash started with digit, which the compiler doesn't
6024   # like as an symbol. So prefix it with an underscore
6025   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6026   echo "CONFIG_MODULES=y" >> $config_host_mak
6027 fi
6028 if test "$module_upgrades" = "yes"; then
6029   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6030 fi
6031 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6032   echo "CONFIG_X11=y" >> $config_host_mak
6033   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6034   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6035 fi
6036 if test "$pipe2" = "yes" ; then
6037   echo "CONFIG_PIPE2=y" >> $config_host_mak
6038 fi
6039 if test "$accept4" = "yes" ; then
6040   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6041 fi
6042 if test "$splice" = "yes" ; then
6043   echo "CONFIG_SPLICE=y" >> $config_host_mak
6044 fi
6045 if test "$eventfd" = "yes" ; then
6046   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6047 fi
6048 if test "$memfd" = "yes" ; then
6049   echo "CONFIG_MEMFD=y" >> $config_host_mak
6050 fi
6051 if test "$have_usbfs" = "yes" ; then
6052   echo "CONFIG_USBFS=y" >> $config_host_mak
6053 fi
6054 if test "$fallocate" = "yes" ; then
6055   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6056 fi
6057 if test "$fallocate_punch_hole" = "yes" ; then
6058   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6059 fi
6060 if test "$fallocate_zero_range" = "yes" ; then
6061   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6062 fi
6063 if test "$posix_fallocate" = "yes" ; then
6064   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6065 fi
6066 if test "$sync_file_range" = "yes" ; then
6067   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6068 fi
6069 if test "$fiemap" = "yes" ; then
6070   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6071 fi
6072 if test "$dup3" = "yes" ; then
6073   echo "CONFIG_DUP3=y" >> $config_host_mak
6074 fi
6075 if test "$ppoll" = "yes" ; then
6076   echo "CONFIG_PPOLL=y" >> $config_host_mak
6077 fi
6078 if test "$prctl_pr_set_timerslack" = "yes" ; then
6079   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6080 fi
6081 if test "$epoll" = "yes" ; then
6082   echo "CONFIG_EPOLL=y" >> $config_host_mak
6083 fi
6084 if test "$epoll_create1" = "yes" ; then
6085   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6086 fi
6087 if test "$sendfile" = "yes" ; then
6088   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6089 fi
6090 if test "$timerfd" = "yes" ; then
6091   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6092 fi
6093 if test "$setns" = "yes" ; then
6094   echo "CONFIG_SETNS=y" >> $config_host_mak
6095 fi
6096 if test "$clock_adjtime" = "yes" ; then
6097   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6098 fi
6099 if test "$syncfs" = "yes" ; then
6100   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6101 fi
6102 if test "$inotify" = "yes" ; then
6103   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6104 fi
6105 if test "$inotify1" = "yes" ; then
6106   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6107 fi
6108 if test "$sem_timedwait" = "yes" ; then
6109   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6110 fi
6111 if test "$strchrnul" = "yes" ; then
6112   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6113 fi
6114 if test "$st_atim" = "yes" ; then
6115   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6116 fi
6117 if test "$byteswap_h" = "yes" ; then
6118   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6119 fi
6120 if test "$bswap_h" = "yes" ; then
6121   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6122 fi
6123 if test "$curl" = "yes" ; then
6124   echo "CONFIG_CURL=y" >> $config_host_mak
6125   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6126   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6127 fi
6128 if test "$brlapi" = "yes" ; then
6129   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6130   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6131 fi
6132 if test "$gtk" = "yes" ; then
6133   echo "CONFIG_GTK=y" >> $config_host_mak
6134   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6135   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6136   if test "$gtk_gl" = "yes" ; then
6137     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6138   fi
6139 fi
6140 if test "$gio" = "yes" ; then
6141     echo "CONFIG_GIO=y" >> $config_host_mak
6142     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6143     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6144     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6145 fi
6146 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6147 if test "$gnutls" = "yes" ; then
6148   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6149   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6150   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6151 fi
6152 if test "$gcrypt" = "yes" ; then
6153   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6154   if test "$gcrypt_hmac" = "yes" ; then
6155     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6156   fi
6157   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6158   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6159 fi
6160 if test "$nettle" = "yes" ; then
6161   echo "CONFIG_NETTLE=y" >> $config_host_mak
6162   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6163   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6164   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6165 fi
6166 if test "$qemu_private_xts" = "yes" ; then
6167   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6168 fi
6169 if test "$tasn1" = "yes" ; then
6170   echo "CONFIG_TASN1=y" >> $config_host_mak
6171 fi
6172 if test "$auth_pam" = "yes" ; then
6173     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6174 fi
6175 if test "$have_broken_size_max" = "yes" ; then
6176     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6177 fi
6178 if test "$have_openpty" = "yes" ; then
6179     echo "HAVE_OPENPTY=y" >> $config_host_mak
6180 fi
6181
6182 # Work around a system header bug with some kernel/XFS header
6183 # versions where they both try to define 'struct fsxattr':
6184 # xfs headers will not try to redefine structs from linux headers
6185 # if this macro is set.
6186 if test "$have_fsxattr" = "yes" ; then
6187     echo "HAVE_FSXATTR=y" >> $config_host_mak
6188 fi
6189 if test "$have_copy_file_range" = "yes" ; then
6190     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6191 fi
6192 if test "$vte" = "yes" ; then
6193   echo "CONFIG_VTE=y" >> $config_host_mak
6194   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6195   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6196 fi
6197 if test "$virglrenderer" = "yes" ; then
6198   echo "CONFIG_VIRGL=y" >> $config_host_mak
6199   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6200   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6201 fi
6202 if test "$xen" = "enabled" ; then
6203   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6204   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6205   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6206   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6207 fi
6208 if test "$linux_aio" = "yes" ; then
6209   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6210 fi
6211 if test "$linux_io_uring" = "yes" ; then
6212   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6213   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6214   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6215 fi
6216 if test "$attr" = "yes" ; then
6217   echo "CONFIG_ATTR=y" >> $config_host_mak
6218   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6219 fi
6220 if test "$libattr" = "yes" ; then
6221   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6222 fi
6223 if test "$virtfs" = "yes" ; then
6224   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6225 fi
6226 if test "$vhost_scsi" = "yes" ; then
6227   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6228 fi
6229 if test "$vhost_net" = "yes" ; then
6230   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6231 fi
6232 if test "$vhost_net_user" = "yes" ; then
6233   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6234 fi
6235 if test "$vhost_net_vdpa" = "yes" ; then
6236   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6237 fi
6238 if test "$vhost_crypto" = "yes" ; then
6239   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6240 fi
6241 if test "$vhost_vsock" = "yes" ; then
6242   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6243   if test "$vhost_user" = "yes" ; then
6244     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6245   fi
6246 fi
6247 if test "$vhost_kernel" = "yes" ; then
6248   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6249 fi
6250 if test "$vhost_user" = "yes" ; then
6251   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6252 fi
6253 if test "$vhost_vdpa" = "yes" ; then
6254   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6255 fi
6256 if test "$vhost_user_fs" = "yes" ; then
6257   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6258 fi
6259 if test "$iovec" = "yes" ; then
6260   echo "CONFIG_IOVEC=y" >> $config_host_mak
6261 fi
6262 if test "$preadv" = "yes" ; then
6263   echo "CONFIG_PREADV=y" >> $config_host_mak
6264 fi
6265 if test "$membarrier" = "yes" ; then
6266   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6267 fi
6268 if test "$signalfd" = "yes" ; then
6269   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6270 fi
6271 if test "$optreset" = "yes" ; then
6272   echo "HAVE_OPTRESET=y" >> $config_host_mak
6273 fi
6274 if test "$tcg" = "enabled"; then
6275   if test "$tcg_interpreter" = "yes" ; then
6276     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6277   fi
6278 fi
6279 if test "$fdatasync" = "yes" ; then
6280   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6281 fi
6282 if test "$madvise" = "yes" ; then
6283   echo "CONFIG_MADVISE=y" >> $config_host_mak
6284 fi
6285 if test "$posix_madvise" = "yes" ; then
6286   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6287 fi
6288 if test "$posix_memalign" = "yes" ; then
6289   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6290 fi
6291 if test "$spice" = "yes" ; then
6292   echo "CONFIG_SPICE=y" >> $config_host_mak
6293   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6294   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6295 fi
6296
6297 if test "$smartcard" = "yes" ; then
6298   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6299   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6300   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6301 fi
6302
6303 if test "$libusb" = "yes" ; then
6304   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6305   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6306   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6307 fi
6308
6309 if test "$usb_redir" = "yes" ; then
6310   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6311   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6312   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6313 fi
6314
6315 if test "$opengl" = "yes" ; then
6316   echo "CONFIG_OPENGL=y" >> $config_host_mak
6317   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
6318   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6319   if test "$opengl_dmabuf" = "yes" ; then
6320     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6321   fi
6322 fi
6323
6324 if test "$gbm" = "yes" ; then
6325     echo "CONFIG_GBM=y" >> $config_host_mak
6326     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6327     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6328 fi
6329
6330
6331 if test "$avx2_opt" = "yes" ; then
6332   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
6333 fi
6334
6335 if test "$avx512f_opt" = "yes" ; then
6336   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
6337 fi
6338
6339 if test "$lzo" = "yes" ; then
6340   echo "CONFIG_LZO=y" >> $config_host_mak
6341   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
6342 fi
6343
6344 if test "$snappy" = "yes" ; then
6345   echo "CONFIG_SNAPPY=y" >> $config_host_mak
6346   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
6347 fi
6348
6349 if test "$bzip2" = "yes" ; then
6350   echo "CONFIG_BZIP2=y" >> $config_host_mak
6351   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
6352 fi
6353
6354 if test "$lzfse" = "yes" ; then
6355   echo "CONFIG_LZFSE=y" >> $config_host_mak
6356   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
6357 fi
6358
6359 if test "$zstd" = "yes" ; then
6360   echo "CONFIG_ZSTD=y" >> $config_host_mak
6361   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
6362   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
6363 fi
6364
6365 if test "$libiscsi" = "yes" ; then
6366   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
6367   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
6368   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
6369 fi
6370
6371 if test "$libnfs" = "yes" ; then
6372   echo "CONFIG_LIBNFS=y" >> $config_host_mak
6373   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
6374 fi
6375
6376 if test "$seccomp" = "yes"; then
6377   echo "CONFIG_SECCOMP=y" >> $config_host_mak
6378   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
6379   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
6380 fi
6381
6382 # XXX: suppress that
6383 if [ "$bsd" = "yes" ] ; then
6384   echo "CONFIG_BSD=y" >> $config_host_mak
6385 fi
6386
6387 if test "$qom_cast_debug" = "yes" ; then
6388   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
6389 fi
6390 if test "$rbd" = "yes" ; then
6391   echo "CONFIG_RBD=y" >> $config_host_mak
6392   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
6393 fi
6394
6395 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
6396 if test "$coroutine_pool" = "yes" ; then
6397   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
6398 else
6399   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
6400 fi
6401
6402 if test "$debug_stack_usage" = "yes" ; then
6403   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
6404 fi
6405
6406 if test "$crypto_afalg" = "yes" ; then
6407   echo "CONFIG_AF_ALG=y" >> $config_host_mak
6408 fi
6409
6410 if test "$open_by_handle_at" = "yes" ; then
6411   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
6412 fi
6413
6414 if test "$linux_magic_h" = "yes" ; then
6415   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
6416 fi
6417
6418 if test "$valgrind_h" = "yes" ; then
6419   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
6420 fi
6421
6422 if test "$have_asan_iface_fiber" = "yes" ; then
6423     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
6424 fi
6425
6426 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
6427     echo "CONFIG_TSAN=y" >> $config_host_mak
6428 fi
6429
6430 if test "$has_environ" = "yes" ; then
6431   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
6432 fi
6433
6434 if test "$cpuid_h" = "yes" ; then
6435   echo "CONFIG_CPUID_H=y" >> $config_host_mak
6436 fi
6437
6438 if test "$int128" = "yes" ; then
6439   echo "CONFIG_INT128=y" >> $config_host_mak
6440 fi
6441
6442 if test "$atomic128" = "yes" ; then
6443   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
6444 fi
6445
6446 if test "$cmpxchg128" = "yes" ; then
6447   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
6448 fi
6449
6450 if test "$atomic64" = "yes" ; then
6451   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
6452 fi
6453
6454 if test "$attralias" = "yes" ; then
6455   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
6456 fi
6457
6458 if test "$getauxval" = "yes" ; then
6459   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
6460 fi
6461
6462 if test "$glusterfs" = "yes" ; then
6463   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
6464   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
6465   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
6466 fi
6467
6468 if test "$glusterfs_xlator_opt" = "yes" ; then
6469   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
6470 fi
6471
6472 if test "$glusterfs_discard" = "yes" ; then
6473   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
6474 fi
6475
6476 if test "$glusterfs_fallocate" = "yes" ; then
6477   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
6478 fi
6479
6480 if test "$glusterfs_zerofill" = "yes" ; then
6481   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
6482 fi
6483
6484 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
6485   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
6486 fi
6487
6488 if test "$glusterfs_iocb_has_stat" = "yes" ; then
6489   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
6490 fi
6491
6492 if test "$libssh" = "yes" ; then
6493   echo "CONFIG_LIBSSH=y" >> $config_host_mak
6494   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
6495   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
6496 fi
6497
6498 if test "$live_block_migration" = "yes" ; then
6499   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
6500 fi
6501
6502 if test "$tpm" = "yes"; then
6503   echo 'CONFIG_TPM=y' >> $config_host_mak
6504 fi
6505
6506 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
6507 if have_backend "nop"; then
6508   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
6509 fi
6510 if have_backend "simple"; then
6511   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
6512   # Set the appropriate trace file.
6513   trace_file="\"$trace_file-\" FMT_pid"
6514 fi
6515 if have_backend "log"; then
6516   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
6517 fi
6518 if have_backend "ust"; then
6519   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
6520   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
6521   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
6522 fi
6523 if have_backend "dtrace"; then
6524   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
6525   if test "$trace_backend_stap" = "yes" ; then
6526     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
6527   fi
6528 fi
6529 if have_backend "ftrace"; then
6530   if test "$linux" = "yes" ; then
6531     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
6532   else
6533     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
6534   fi
6535 fi
6536 if have_backend "syslog"; then
6537   if test "$posix_syslog" = "yes" ; then
6538     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
6539   else
6540     feature_not_found "syslog(trace backend)" "syslog not available"
6541   fi
6542 fi
6543 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6544
6545 if test "$rdma" = "yes" ; then
6546   echo "CONFIG_RDMA=y" >> $config_host_mak
6547   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6548 fi
6549
6550 if test "$pvrdma" = "yes" ; then
6551   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6552 fi
6553
6554 if test "$have_rtnetlink" = "yes" ; then
6555   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6556 fi
6557
6558 if test "$libxml2" = "yes" ; then
6559   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6560   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6561   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6562 fi
6563
6564 if test "$replication" = "yes" ; then
6565   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6566 fi
6567
6568 if test "$have_af_vsock" = "yes" ; then
6569   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6570 fi
6571
6572 if test "$have_sysmacros" = "yes" ; then
6573   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6574 fi
6575
6576 if test "$have_static_assert" = "yes" ; then
6577   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6578 fi
6579
6580 if test "$have_utmpx" = "yes" ; then
6581   echo "HAVE_UTMPX=y" >> $config_host_mak
6582 fi
6583 if test "$have_getrandom" = "yes" ; then
6584   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6585 fi
6586 if test "$ivshmem" = "yes" ; then
6587   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6588 fi
6589 if test "$debug_mutex" = "yes" ; then
6590   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6591 fi
6592
6593 # Hold two types of flag:
6594 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6595 #                                     a thread we have a handle to
6596 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6597 #                                     platform
6598 if test "$pthread_setname_np_w_tid" = "yes" ; then
6599   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6600   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6601 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6602   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6603   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6604 fi
6605
6606 if test "$libpmem" = "yes" ; then
6607   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6608   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6609   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6610 fi
6611
6612 if test "$libdaxctl" = "yes" ; then
6613   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6614   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6615 fi
6616
6617 if test "$bochs" = "yes" ; then
6618   echo "CONFIG_BOCHS=y" >> $config_host_mak
6619 fi
6620 if test "$cloop" = "yes" ; then
6621   echo "CONFIG_CLOOP=y" >> $config_host_mak
6622 fi
6623 if test "$dmg" = "yes" ; then
6624   echo "CONFIG_DMG=y" >> $config_host_mak
6625 fi
6626 if test "$qcow1" = "yes" ; then
6627   echo "CONFIG_QCOW1=y" >> $config_host_mak
6628 fi
6629 if test "$vdi" = "yes" ; then
6630   echo "CONFIG_VDI=y" >> $config_host_mak
6631 fi
6632 if test "$vvfat" = "yes" ; then
6633   echo "CONFIG_VVFAT=y" >> $config_host_mak
6634 fi
6635 if test "$qed" = "yes" ; then
6636   echo "CONFIG_QED=y" >> $config_host_mak
6637 fi
6638 if test "$parallels" = "yes" ; then
6639   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6640 fi
6641 if test "$sheepdog" = "yes" ; then
6642   add_to deprecated_features "sheepdog"
6643   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6644 fi
6645 if test "$have_mlockall" = "yes" ; then
6646   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6647 fi
6648 if test "$fuzzing" = "yes" ; then
6649   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6650   # needed CFLAGS have already been provided
6651   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6652     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6653     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6654   else
6655     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6656   fi
6657 fi
6658
6659 if test "$plugins" = "yes" ; then
6660     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6661     # Copy the export object list to the build dir
6662     if test "$ld_dynamic_list" = "yes" ; then
6663         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6664         ld_symbols=qemu-plugins-ld.symbols
6665         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6666     elif test "$ld_exported_symbols_list" = "yes" ; then
6667         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6668         ld64_symbols=qemu-plugins-ld64.symbols
6669         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6670         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6671             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6672     else
6673         error_exit \
6674             "If \$plugins=yes, either \$ld_dynamic_list or " \
6675             "\$ld_exported_symbols_list should have been set to 'yes'."
6676     fi
6677 fi
6678
6679 if test -n "$gdb_bin" ; then
6680     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6681 fi
6682
6683 if test "$secret_keyring" = "yes" ; then
6684   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6685 fi
6686
6687 echo "ROMS=$roms" >> $config_host_mak
6688 echo "MAKE=$make" >> $config_host_mak
6689 echo "PYTHON=$python" >> $config_host_mak
6690 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6691 echo "MESON=$meson" >> $config_host_mak
6692 echo "NINJA=$ninja" >> $config_host_mak
6693 echo "CC=$cc" >> $config_host_mak
6694 if $iasl -h > /dev/null 2>&1; then
6695   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6696 fi
6697 echo "CXX=$cxx" >> $config_host_mak
6698 echo "OBJCC=$objcc" >> $config_host_mak
6699 echo "AR=$ar" >> $config_host_mak
6700 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6701 echo "AS=$as" >> $config_host_mak
6702 echo "CCAS=$ccas" >> $config_host_mak
6703 echo "CPP=$cpp" >> $config_host_mak
6704 echo "OBJCOPY=$objcopy" >> $config_host_mak
6705 echo "LD=$ld" >> $config_host_mak
6706 echo "RANLIB=$ranlib" >> $config_host_mak
6707 echo "NM=$nm" >> $config_host_mak
6708 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6709 echo "WINDRES=$windres" >> $config_host_mak
6710 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6711 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6712 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6713 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6714 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6715 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6716 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6717 echo "EXESUF=$EXESUF" >> $config_host_mak
6718 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6719 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6720 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6721 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6722 if test "$gcov" = "yes" ; then
6723   echo "CONFIG_GCOV=y" >> $config_host_mak
6724 fi
6725
6726 if test "$fuzzing" != "no"; then
6727     echo "CONFIG_FUZZ=y" >> $config_host_mak
6728 fi
6729 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6730
6731 if test "$rng_none" = "yes"; then
6732   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6733 fi
6734
6735 # use included Linux headers
6736 if test "$linux" = "yes" ; then
6737   mkdir -p linux-headers
6738   case "$cpu" in
6739   i386|x86_64|x32)
6740     linux_arch=x86
6741     ;;
6742   ppc|ppc64|ppc64le)
6743     linux_arch=powerpc
6744     ;;
6745   s390x)
6746     linux_arch=s390
6747     ;;
6748   aarch64)
6749     linux_arch=arm64
6750     ;;
6751   mips64)
6752     linux_arch=mips
6753     ;;
6754   *)
6755     # For most CPUs the kernel architecture name and QEMU CPU name match.
6756     linux_arch="$cpu"
6757     ;;
6758   esac
6759     # For non-KVM architectures we will not have asm headers
6760     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6761       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6762     fi
6763 fi
6764
6765 for target in $target_list; do
6766     target_dir="$target"
6767     target_name=$(echo $target | cut -d '-' -f 1)
6768     mkdir -p $target_dir
6769     case $target in
6770         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6771         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6772     esac
6773 done
6774
6775 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6776 if test "$default_targets" = "yes"; then
6777   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6778 fi
6779
6780 if test "$numa" = "yes"; then
6781   echo "CONFIG_NUMA=y" >> $config_host_mak
6782   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6783 fi
6784
6785 if test "$ccache_cpp2" = "yes"; then
6786   echo "export CCACHE_CPP2=y" >> $config_host_mak
6787 fi
6788
6789 if test "$safe_stack" = "yes"; then
6790   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6791 fi
6792
6793 # If we're using a separate build tree, set it up now.
6794 # DIRS are directories which we simply mkdir in the build tree;
6795 # LINKS are things to symlink back into the source tree
6796 # (these can be both files and directories).
6797 # Caution: do not add files or directories here using wildcards. This
6798 # will result in problems later if a new file matching the wildcard is
6799 # added to the source tree -- nothing will cause configure to be rerun
6800 # so the build tree will be missing the link back to the new file, and
6801 # tests might fail. Prefer to keep the relevant files in their own
6802 # directory and symlink the directory instead.
6803 # UNLINK is used to remove symlinks from older development versions
6804 # that might get into the way when doing "git update" without doing
6805 # a "make distclean" in between.
6806 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6807 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6808 DIRS="$DIRS docs docs/interop fsdev scsi"
6809 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6810 DIRS="$DIRS roms/seabios"
6811 DIRS="$DIRS contrib/plugins/"
6812 LINKS="Makefile"
6813 LINKS="$LINKS tests/tcg/lm32/Makefile"
6814 LINKS="$LINKS tests/tcg/Makefile.target"
6815 LINKS="$LINKS pc-bios/optionrom/Makefile"
6816 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6817 LINKS="$LINKS roms/seabios/Makefile"
6818 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6819 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6820 LINKS="$LINKS tests/acceptance tests/data"
6821 LINKS="$LINKS tests/qemu-iotests/check"
6822 LINKS="$LINKS python"
6823 LINKS="$LINKS contrib/plugins/Makefile "
6824 UNLINK="pc-bios/keymaps"
6825 for bios_file in \
6826     $source_path/pc-bios/*.bin \
6827     $source_path/pc-bios/*.elf \
6828     $source_path/pc-bios/*.lid \
6829     $source_path/pc-bios/*.rom \
6830     $source_path/pc-bios/*.dtb \
6831     $source_path/pc-bios/*.img \
6832     $source_path/pc-bios/openbios-* \
6833     $source_path/pc-bios/u-boot.* \
6834     $source_path/pc-bios/edk2-*.fd.bz2 \
6835     $source_path/pc-bios/palcode-*
6836 do
6837     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6838 done
6839 mkdir -p $DIRS
6840 for f in $LINKS ; do
6841     if [ -e "$source_path/$f" ]; then
6842         symlink "$source_path/$f" "$f"
6843     fi
6844 done
6845 for f in $UNLINK ; do
6846     if [ -L "$f" ]; then
6847         rm -f "$f"
6848     fi
6849 done
6850
6851 (for i in $cross_cc_vars; do
6852   export $i
6853 done
6854 export target_list source_path use_containers
6855 $source_path/tests/tcg/configure.sh)
6856
6857 # temporary config to build submodules
6858 for rom in seabios; do
6859     config_mak=roms/$rom/config.mak
6860     echo "# Automatically generated by configure - do not modify" > $config_mak
6861     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6862     echo "AS=$as" >> $config_mak
6863     echo "CCAS=$ccas" >> $config_mak
6864     echo "CC=$cc" >> $config_mak
6865     echo "BCC=bcc" >> $config_mak
6866     echo "CPP=$cpp" >> $config_mak
6867     echo "OBJCOPY=objcopy" >> $config_mak
6868     echo "IASL=$iasl" >> $config_mak
6869     echo "LD=$ld" >> $config_mak
6870     echo "RANLIB=$ranlib" >> $config_mak
6871 done
6872
6873 # set up qemu-iotests in this build directory
6874 iotests_common_env="tests/qemu-iotests/common.env"
6875
6876 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
6877 echo >> "$iotests_common_env"
6878 echo "export PYTHON='$python'" >> "$iotests_common_env"
6879
6880 if test "$skip_meson" = no; then
6881 cross="config-meson.cross.new"
6882 meson_quote() {
6883     echo "'$(echo $* | sed "s/ /','/g")'"
6884 }
6885
6886 echo "# Automatically generated by configure - do not modify" > $cross
6887 echo "[properties]" >> $cross
6888 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6889 echo "[built-in options]" >> $cross
6890 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6891 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6892 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6893 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6894 echo "[binaries]" >> $cross
6895 echo "c = [$(meson_quote $cc)]" >> $cross
6896 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6897 echo "ar = [$(meson_quote $ar)]" >> $cross
6898 echo "nm = [$(meson_quote $nm)]" >> $cross
6899 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6900 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6901 if has $sdl2_config; then
6902   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6903 fi
6904 echo "strip = [$(meson_quote $strip)]" >> $cross
6905 echo "windres = [$(meson_quote $windres)]" >> $cross
6906 if test -n "$cross_prefix"; then
6907     cross_arg="--cross-file config-meson.cross"
6908     echo "[host_machine]" >> $cross
6909     if test "$mingw32" = "yes" ; then
6910         echo "system = 'windows'" >> $cross
6911     fi
6912     if test "$linux" = "yes" ; then
6913         echo "system = 'linux'" >> $cross
6914     fi
6915     case "$ARCH" in
6916         i386|x86_64)
6917             echo "cpu_family = 'x86'" >> $cross
6918             ;;
6919         ppc64le)
6920             echo "cpu_family = 'ppc64'" >> $cross
6921             ;;
6922         *)
6923             echo "cpu_family = '$ARCH'" >> $cross
6924             ;;
6925     esac
6926     echo "cpu = '$cpu'" >> $cross
6927     if test "$bigendian" = "yes" ; then
6928         echo "endian = 'big'" >> $cross
6929     else
6930         echo "endian = 'little'" >> $cross
6931     fi
6932 else
6933     cross_arg="--native-file config-meson.cross"
6934 fi
6935 mv $cross config-meson.cross
6936
6937 rm -rf meson-private meson-info meson-logs
6938 unset staticpic
6939 if ! version_ge "$($meson --version)" 0.56.0; then
6940   staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
6941 fi
6942 NINJA=$ninja $meson setup \
6943         --prefix "$prefix" \
6944         --libdir "$libdir" \
6945         --libexecdir "$libexecdir" \
6946         --bindir "$bindir" \
6947         --includedir "$includedir" \
6948         --datadir "$datadir" \
6949         --mandir "$mandir" \
6950         --sysconfdir "$sysconfdir" \
6951         --localedir "$localedir" \
6952         --localstatedir "$local_statedir" \
6953         -Ddocdir="$docdir" \
6954         -Dqemu_firmwarepath="$firmwarepath" \
6955         -Dqemu_suffix="$qemu_suffix" \
6956         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6957         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6958         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6959         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6960         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6961         ${staticpic:+-Db_staticpic=$staticpic} \
6962         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6963         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6964         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
6965         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6966         -Dcocoa=$cocoa -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6967         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6968         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6969         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt \
6970         -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6971         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6972         -Dvhost_user_blk_server=$vhost_user_blk_server \
6973         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek \
6974         $cross_arg \
6975         "$PWD" "$source_path"
6976
6977 if test "$?" -ne 0 ; then
6978     error_exit "meson setup failed"
6979 fi
6980 fi
6981
6982 if test -n "${deprecated_features}"; then
6983     echo "Warning, deprecated features enabled."
6984     echo "Please see docs/system/deprecated.rst"
6985     echo "  features: ${deprecated_features}"
6986 fi
6987
6988 # Save the configure command line for later reuse.
6989 cat <<EOD >config.status
6990 #!/bin/sh
6991 # Generated by configure.
6992 # Run this file to recreate the current configuration.
6993 # Compiler output produced by configure, useful for debugging
6994 # configure, is in config.log if it exists.
6995 EOD
6996
6997 preserve_env() {
6998     envname=$1
6999
7000     eval envval=\$$envname
7001
7002     if test -n "$envval"
7003     then
7004         echo "$envname='$envval'" >> config.status
7005         echo "export $envname" >> config.status
7006     else
7007         echo "unset $envname" >> config.status
7008     fi
7009 }
7010
7011 # Preserve various env variables that influence what
7012 # features/build target configure will detect
7013 preserve_env AR
7014 preserve_env AS
7015 preserve_env CC
7016 preserve_env CPP
7017 preserve_env CXX
7018 preserve_env INSTALL
7019 preserve_env LD
7020 preserve_env LD_LIBRARY_PATH
7021 preserve_env LIBTOOL
7022 preserve_env MAKE
7023 preserve_env NM
7024 preserve_env OBJCOPY
7025 preserve_env PATH
7026 preserve_env PKG_CONFIG
7027 preserve_env PKG_CONFIG_LIBDIR
7028 preserve_env PKG_CONFIG_PATH
7029 preserve_env PYTHON
7030 preserve_env SDL2_CONFIG
7031 preserve_env SMBD
7032 preserve_env STRIP
7033 preserve_env WINDRES
7034
7035 printf "exec" >>config.status
7036 for i in "$0" "$@"; do
7037   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
7038 done
7039 echo ' "$@"' >>config.status
7040 chmod +x config.status
7041
7042 rm -r "$TMPDIR1"