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="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 158     CXXFLAGS=$(echo "$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 $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 $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC $LDFLAGS $QEMU_LDFLAGS $local_ldflags
 180 }
 181
 182 # symbolically link $1 to $2.  Portable version of "ln -sf".
 183 symlink() {
 184   rm -rf "$2"
 185   mkdir -p "$(dirname "$2")"
 186   ln -s "$1" "$2"
 187 }
 188
 189 # check whether a command is available to this shell (may be either an
 190 # executable or a builtin)
 191 has() {
 192     type "$1" >/dev/null 2>&1
 193 }
 194
 195 version_ge () {
 196     local_ver1=`echo $1 | tr . ' '`
 197     local_ver2=`echo $2 | tr . ' '`
 198     while true; do
 199         set x $local_ver1
 200         local_first=${2-0}
 201         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 202         shift ${2:+2}
 203         local_ver1=$*
 204         set x $local_ver2
 205         # the second argument finished, the first must be greater or equal
 206         test $# = 1 && return 0
 207         test $local_first -lt $2 && return 1
 208         test $local_first -gt $2 && return 0
 209         shift ${2:+2}
 210         local_ver2=$*
 211     done
 212 }
 213
 214 have_backend () {
 215     echo "$trace_backends" | grep "$1" >/dev/null
 216 }
 217
 218 glob() {
 219     eval test -z '"${1#'"$2"'}"'
 220 }
 221
 222 supported_hax_target() {
 223     test "$hax" = "yes" || return 1
 224     glob "$1" "*-softmmu" || return 1
 225     case "${1%-softmmu}" in
 226         i386|x86_64)
 227             return 0
 228         ;;
 229     esac
 230     return 1
 231 }
 232
 233 supported_kvm_target() {
 234     test "$kvm" = "yes" || return 1
 235     glob "$1" "*-softmmu" || return 1
 236     case "${1%-softmmu}:$cpu" in
 237         aarch64:aarch64 | \
 238         i386:i386 | i386:x86_64 | i386:x32 | \
 239         x86_64:i386 | x86_64:x86_64 | x86_64:x32 | \
 240         mips:mips | mipsel:mips | mips64:mips | mips64el:mips | \
 241         ppc:ppc | ppc64:ppc | ppc:ppc64 | ppc64:ppc64 | ppc64:ppc64le | \
 242         s390x:s390x)
 243             return 0
 244         ;;
 245     esac
 246     return 1
 247 }
 248
 249 supported_xen_target() {
 250     test "$xen" = "yes" || return 1
 251     glob "$1" "*-softmmu" || return 1
 252     # Only i386 and x86_64 provide the xenpv machine.
 253     case "${1%-softmmu}" in
 254         i386|x86_64)
 255             return 0
 256         ;;
 257     esac
 258     return 1
 259 }
 260
 261 supported_hvf_target() {
 262     test "$hvf" = "yes" || return 1
 263     glob "$1" "*-softmmu" || return 1
 264     case "${1%-softmmu}" in
 265         x86_64)
 266             return 0
 267         ;;
 268     esac
 269     return 1
 270 }
 271
 272 supported_whpx_target() {
 273     test "$whpx" = "yes" || return 1
 274     glob "$1" "*-softmmu" || return 1
 275     case "${1%-softmmu}" in
 276         i386|x86_64)
 277             return 0
 278         ;;
 279     esac
 280     return 1
 281 }
 282
 283 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
 284 deprecated_features=""
 285
 286 supported_target() {
 287     case "$1" in
 288         *-softmmu)
 289             ;;
 290         *-linux-user)
 291             if test "$linux" != "yes"; then
 292                 print_error "Target '$target' is only available on a Linux host"
 293                 return 1
 294             fi
 295             ;;
 296         *-bsd-user)
 297             if test "$bsd" != "yes"; then
 298                 print_error "Target '$target' is only available on a BSD host"
 299                 return 1
 300             fi
 301             ;;
 302         *)
 303             print_error "Invalid target name '$target'"
 304             return 1
 305             ;;
 306     esac
 307
 308     # if a deprecated target is enabled we note it here
 309     if echo "$deprecated_targets_list" | grep -q "$1"; then
 310         add_to deprecated_features $1
 311     fi
 312
 313     test "$tcg" = "yes" && return 0
 314     supported_kvm_target "$1" && return 0
 315     supported_xen_target "$1" && return 0
 316     supported_hax_target "$1" && return 0
 317     supported_hvf_target "$1" && return 0
 318     supported_whpx_target "$1" && return 0
 319     print_error "TCG disabled, but hardware accelerator not available for '$target'"
 320     return 1
 321 }
 322
 323
 324 ld_has() {
 325     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 326 }
 327
 328 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 329 then
 330   error_exit "main directory cannot contain spaces nor colons"
 331 fi
 332
 333 # default parameters
 334 cpu=""
 335 iasl="iasl"
 336 interp_prefix="/usr/gnemul/qemu-%M"
 337 static="no"
 338 cross_prefix=""
 339 audio_drv_list=""
 340 block_drv_rw_whitelist=""
 341 block_drv_ro_whitelist=""
 342 host_cc="cc"
 343 audio_win_int=""
 344 libs_qga=""
 345 debug_info="yes"
 346 stack_protector=""
 347 safe_stack=""
 348 use_containers="yes"
 349 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 350
 351 if test -e "$source_path/.git"
 352 then
 353     git_update=yes
 354     git_submodules="ui/keycodemapdb"
 355     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 356     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 357 else
 358     git_update=no
 359     git_submodules=""
 360
 361     if ! test -f "$source_path/ui/keycodemapdb/README"
 362     then
 363         echo
 364         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 365         echo
 366         echo "This is not a GIT checkout but module content appears to"
 367         echo "be missing. Do not use 'git archive' or GitHub download links"
 368         echo "to acquire QEMU source archives. Non-GIT builds are only"
 369         echo "supported with source archives linked from:"
 370         echo
 371         echo "  https://www.qemu.org/download/#source"
 372         echo
 373         echo "Developers working with GIT can use scripts/archive-source.sh"
 374         echo "if they need to create valid source archives."
 375         echo
 376         exit 1
 377     fi
 378 fi
 379 git="git"
 380
 381 # Don't accept a target_list environment variable.
 382 unset target_list
 383 unset target_list_exclude
 384
 385 # Default value for a variable defining feature "foo".
 386 #  * foo="no"  feature will only be used if --enable-foo arg is given
 387 #  * foo=""    feature will be searched for, and if found, will be used
 388 #              unless --disable-foo is given
 389 #  * foo="yes" this value will only be set by --enable-foo flag.
 390 #              feature will searched for,
 391 #              if not found, configure exits with error
 392 #
 393 # Always add --enable-foo and --disable-foo command line args.
 394 # Distributions want to ensure that several features are compiled in, and it
 395 # is impossible without a --enable-foo that exits if a feature is not found.
 396
 397 brlapi=""
 398 curl=""
 399 curses=""
 400 docs=""
 401 fdt=""
 402 netmap="no"
 403 sdl="auto"
 404 sdl_image="auto"
 405 virtfs=""
 406 mpath="auto"
 407 vnc="enabled"
 408 sparse="no"
 409 vde=""
 410 vnc_sasl="auto"
 411 vnc_jpeg="auto"
 412 vnc_png="auto"
 413 xkbcommon="auto"
 414 xen=""
 415 xen_ctrl_version=""
 416 xen_pci_passthrough=""
 417 linux_aio=""
 418 linux_io_uring=""
 419 cap_ng=""
 420 attr=""
 421 libattr=""
 422 xfs=""
 423 tcg="yes"
 424 membarrier=""
 425 vhost_net=""
 426 vhost_crypto=""
 427 vhost_scsi=""
 428 vhost_vsock=""
 429 vhost_user=""
 430 vhost_user_fs=""
 431 kvm="no"
 432 hax="no"
 433 hvf="no"
 434 whpx="no"
 435 rdma=""
 436 pvrdma=""
 437 gprof="no"
 438 debug_tcg="no"
 439 debug="no"
 440 sanitizers="no"
 441 tsan="no"
 442 fortify_source=""
 443 strip_opt="yes"
 444 tcg_interpreter="no"
 445 bigendian="no"
 446 mingw32="no"
 447 gcov="no"
 448 EXESUF=""
 449 HOST_DSOSUF=".so"
 450 modules="no"
 451 module_upgrades="no"
 452 prefix="/usr/local"
 453 qemu_suffix="qemu"
 454 slirp=""
 455 oss_lib=""
 456 bsd="no"
 457 linux="no"
 458 solaris="no"
 459 profiler="no"
 460 cocoa="no"
 461 softmmu="yes"
 462 linux_user="no"
 463 bsd_user="no"
 464 blobs="yes"
 465 edk2_blobs="no"
 466 pkgversion=""
 467 pie=""
 468 qom_cast_debug="yes"
 469 trace_backends="log"
 470 trace_file="trace"
 471 spice=""
 472 rbd=""
 473 smartcard=""
 474 u2f="auto"
 475 libusb=""
 476 usb_redir=""
 477 opengl=""
 478 opengl_dmabuf="no"
 479 cpuid_h="no"
 480 avx2_opt=""
 481 capstone=""
 482 lzo=""
 483 snappy=""
 484 bzip2=""
 485 lzfse=""
 486 zstd=""
 487 guest_agent=""
 488 guest_agent_with_vss="no"
 489 guest_agent_ntddscsi="no"
 490 guest_agent_msi=""
 491 vss_win32_sdk=""
 492 win_sdk="no"
 493 want_tools=""
 494 libiscsi=""
 495 libnfs=""
 496 coroutine=""
 497 coroutine_pool=""
 498 debug_stack_usage="no"
 499 crypto_afalg="no"
 500 seccomp=""
 501 glusterfs=""
 502 glusterfs_xlator_opt="no"
 503 glusterfs_discard="no"
 504 glusterfs_fallocate="no"
 505 glusterfs_zerofill="no"
 506 glusterfs_ftruncate_has_stat="no"
 507 glusterfs_iocb_has_stat="no"
 508 gtk=""
 509 gtk_gl="no"
 510 tls_priority="NORMAL"
 511 gnutls=""
 512 nettle=""
 513 nettle_xts="no"
 514 gcrypt=""
 515 gcrypt_hmac="no"
 516 gcrypt_xts="no"
 517 qemu_private_xts="yes"
 518 auth_pam=""
 519 vte=""
 520 virglrenderer=""
 521 tpm=""
 522 libssh=""
 523 live_block_migration="yes"
 524 numa=""
 525 tcmalloc="no"
 526 jemalloc="no"
 527 replication="yes"
 528 bochs="yes"
 529 cloop="yes"
 530 dmg="yes"
 531 qcow1="yes"
 532 vdi="yes"
 533 vvfat="yes"
 534 qed="yes"
 535 parallels="yes"
 536 sheepdog="yes"
 537 libxml2=""
 538 debug_mutex="no"
 539 libpmem=""
 540 default_devices="yes"
 541 plugins="no"
 542 fuzzing="no"
 543 rng_none="no"
 544 secret_keyring=""
 545 libdaxctl=""
 546 meson=""
 547 ninja=""
 548 skip_meson=no
 549 gettext=""
 550
 551 bogus_os="no"
 552 malloc_trim=""
 553
 554 # parse CC options first
 555 for opt do
 556   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 557   case "$opt" in
 558   --cross-prefix=*) cross_prefix="$optarg"
 559   ;;
 560   --cc=*) CC="$optarg"
 561   ;;
 562   --cxx=*) CXX="$optarg"
 563   ;;
 564   --cpu=*) cpu="$optarg"
 565   ;;
 566   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 567                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 568   ;;
 569   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 570   ;;
 571   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 572                      EXTRA_LDFLAGS="$optarg"
 573   ;;
 574   --enable-debug-info) debug_info="yes"
 575   ;;
 576   --disable-debug-info) debug_info="no"
 577   ;;
 578   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 579   ;;
 580   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 581                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 582                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 583   ;;
 584   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 585                 cc_archs="$cc_archs $cc_arch"
 586                 eval "cross_cc_${cc_arch}=\$optarg"
 587                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 588   ;;
 589   esac
 590 done
 591 # OS specific
 592 # Using uname is really, really broken.  Once we have the right set of checks
 593 # we can eliminate its usage altogether.
 594
 595 # Preferred compiler:
 596 #  ${CC} (if set)
 597 #  ${cross_prefix}gcc (if cross-prefix specified)
 598 #  system compiler
 599 if test -z "${CC}${cross_prefix}"; then
 600   cc="$host_cc"
 601 else
 602   cc="${CC-${cross_prefix}gcc}"
 603 fi
 604
 605 if test -z "${CXX}${cross_prefix}"; then
 606   cxx="c++"
 607 else
 608   cxx="${CXX-${cross_prefix}g++}"
 609 fi
 610
 611 ar="${AR-${cross_prefix}ar}"
 612 as="${AS-${cross_prefix}as}"
 613 ccas="${CCAS-$cc}"
 614 cpp="${CPP-$cc -E}"
 615 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 616 ld="${LD-${cross_prefix}ld}"
 617 ranlib="${RANLIB-${cross_prefix}ranlib}"
 618 nm="${NM-${cross_prefix}nm}"
 619 strip="${STRIP-${cross_prefix}strip}"
 620 windres="${WINDRES-${cross_prefix}windres}"
 621 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 622 query_pkg_config() {
 623     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 624 }
 625 pkg_config=query_pkg_config
 626 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 627
 628 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 629 ARFLAGS="${ARFLAGS-rv}"
 630
 631 # default flags for all hosts
 632 # We use -fwrapv to tell the compiler that we require a C dialect where
 633 # left shift of signed integers is well defined and has the expected
 634 # 2s-complement style results. (Both clang and gcc agree that it
 635 # provides these semantics.)
 636 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 637 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 638 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 639 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 640 QEMU_INCLUDES="-iquote . -iquote ${source_path} -iquote ${source_path}/accel/tcg -iquote ${source_path}/include"
 641 QEMU_INCLUDES="$QEMU_INCLUDES -iquote ${source_path}/disas/libvixl"
 642 CFLAGS="-std=gnu99 -Wall"
 643
 644
 645 check_define() {
 646 cat > $TMPC <<EOF
 647 #if !defined($1)
 648 #error $1 not defined
 649 #endif
 650 int main(void) { return 0; }
 651 EOF
 652   compile_object
 653 }
 654
 655 check_include() {
 656 cat > $TMPC <<EOF
 657 #include <$1>
 658 int main(void) { return 0; }
 659 EOF
 660   compile_object
 661 }
 662
 663 write_c_skeleton() {
 664     cat > $TMPC <<EOF
 665 int main(void) { return 0; }
 666 EOF
 667 }
 668
 669 write_c_fuzzer_skeleton() {
 670     cat > $TMPC <<EOF
 671 #include <stdint.h>
 672 #include <sys/types.h>
 673 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 674 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 675 EOF
 676 }
 677
 678 if check_define __linux__ ; then
 679   targetos="Linux"
 680 elif check_define _WIN32 ; then
 681   targetos='MINGW32'
 682 elif check_define __OpenBSD__ ; then
 683   targetos='OpenBSD'
 684 elif check_define __sun__ ; then
 685   targetos='SunOS'
 686 elif check_define __HAIKU__ ; then
 687   targetos='Haiku'
 688 elif check_define __FreeBSD__ ; then
 689   targetos='FreeBSD'
 690 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 691   targetos='GNU/kFreeBSD'
 692 elif check_define __DragonFly__ ; then
 693   targetos='DragonFly'
 694 elif check_define __NetBSD__; then
 695   targetos='NetBSD'
 696 elif check_define __APPLE__; then
 697   targetos='Darwin'
 698 else
 699   # This is a fatal error, but don't report it yet, because we
 700   # might be going to just print the --help text, or it might
 701   # be the result of a missing compiler.
 702   targetos='bogus'
 703   bogus_os='yes'
 704 fi
 705
 706 # Some host OSes need non-standard checks for which CPU to use.
 707 # Note that these checks are broken for cross-compilation: if you're
 708 # cross-compiling to one of these OSes then you'll need to specify
 709 # the correct CPU with the --cpu option.
 710 case $targetos in
 711 Darwin)
 712   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 713   # run 64-bit userspace code.
 714   # If the user didn't specify a CPU explicitly and the kernel says this is
 715   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 716   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 717     cpu="x86_64"
 718   fi
 719   ;;
 720 SunOS)
 721   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 722   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 723     cpu="x86_64"
 724   fi
 725 esac
 726
 727 if test ! -z "$cpu" ; then
 728   # command line argument
 729   :
 730 elif check_define __i386__ ; then
 731   cpu="i386"
 732 elif check_define __x86_64__ ; then
 733   if check_define __ILP32__ ; then
 734     cpu="x32"
 735   else
 736     cpu="x86_64"
 737   fi
 738 elif check_define __sparc__ ; then
 739   if check_define __arch64__ ; then
 740     cpu="sparc64"
 741   else
 742     cpu="sparc"
 743   fi
 744 elif check_define _ARCH_PPC ; then
 745   if check_define _ARCH_PPC64 ; then
 746     if check_define _LITTLE_ENDIAN ; then
 747       cpu="ppc64le"
 748     else
 749       cpu="ppc64"
 750     fi
 751   else
 752     cpu="ppc"
 753   fi
 754 elif check_define __mips__ ; then
 755   cpu="mips"
 756 elif check_define __s390__ ; then
 757   if check_define __s390x__ ; then
 758     cpu="s390x"
 759   else
 760     cpu="s390"
 761   fi
 762 elif check_define __riscv ; then
 763   if check_define _LP64 ; then
 764     cpu="riscv64"
 765   else
 766     cpu="riscv32"
 767   fi
 768 elif check_define __arm__ ; then
 769   cpu="arm"
 770 elif check_define __aarch64__ ; then
 771   cpu="aarch64"
 772 else
 773   cpu=$(uname -m)
 774 fi
 775
 776 ARCH=
 777 # Normalise host CPU name and set ARCH.
 778 # Note that this case should only have supported host CPUs, not guests.
 779 case "$cpu" in
 780   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 781   ;;
 782   ppc64le)
 783     ARCH="ppc64"
 784   ;;
 785   i386|i486|i586|i686|i86pc|BePC)
 786     cpu="i386"
 787   ;;
 788   x86_64|amd64)
 789     cpu="x86_64"
 790   ;;
 791   armv*b|armv*l|arm)
 792     cpu="arm"
 793   ;;
 794   aarch64)
 795     cpu="aarch64"
 796   ;;
 797   mips*)
 798     cpu="mips"
 799   ;;
 800   sparc|sun4[cdmuv])
 801     cpu="sparc"
 802   ;;
 803   *)
 804     # This will result in either an error or falling back to TCI later
 805     ARCH=unknown
 806   ;;
 807 esac
 808 if test -z "$ARCH"; then
 809   ARCH="$cpu"
 810 fi
 811
 812 # OS specific
 813
 814 # host *BSD for user mode
 815 HOST_VARIANT_DIR=""
 816
 817 case $targetos in
 818 MINGW32*)
 819   mingw32="yes"
 820   hax="yes"
 821   whpx=""
 822   vhost_user="no"
 823   audio_possible_drivers="dsound sdl"
 824   if check_include dsound.h; then
 825     audio_drv_list="dsound"
 826   else
 827     audio_drv_list=""
 828   fi
 829   supported_os="yes"
 830   pie="no"
 831 ;;
 832 GNU/kFreeBSD)
 833   bsd="yes"
 834   audio_drv_list="oss try-sdl"
 835   audio_possible_drivers="oss sdl pa"
 836 ;;
 837 FreeBSD)
 838   bsd="yes"
 839   make="${MAKE-gmake}"
 840   audio_drv_list="oss try-sdl"
 841   audio_possible_drivers="oss sdl pa"
 842   # needed for kinfo_getvmmap(3) in libutil.h
 843   netmap=""  # enable netmap autodetect
 844   HOST_VARIANT_DIR="freebsd"
 845 ;;
 846 DragonFly)
 847   bsd="yes"
 848   make="${MAKE-gmake}"
 849   audio_drv_list="oss try-sdl"
 850   audio_possible_drivers="oss sdl pa"
 851   HOST_VARIANT_DIR="dragonfly"
 852 ;;
 853 NetBSD)
 854   bsd="yes"
 855   hax="yes"
 856   make="${MAKE-gmake}"
 857   audio_drv_list="oss try-sdl"
 858   audio_possible_drivers="oss sdl"
 859   oss_lib="-lossaudio"
 860   HOST_VARIANT_DIR="netbsd"
 861 ;;
 862 OpenBSD)
 863   bsd="yes"
 864   make="${MAKE-gmake}"
 865   audio_drv_list="try-sdl"
 866   audio_possible_drivers="sdl"
 867   HOST_VARIANT_DIR="openbsd"
 868 ;;
 869 Darwin)
 870   bsd="yes"
 871   darwin="yes"
 872   hax="yes"
 873   hvf="yes"
 874   if [ "$cpu" = "x86_64" ] ; then
 875     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 876     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 877   fi
 878   cocoa="yes"
 879   audio_drv_list="coreaudio try-sdl"
 880   audio_possible_drivers="coreaudio sdl"
 881   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 882   # Disable attempts to use ObjectiveC features in os/object.h since they
 883   # won't work when we're compiling with gcc as a C compiler.
 884   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 885   HOST_VARIANT_DIR="darwin"
 886 ;;
 887 SunOS)
 888   solaris="yes"
 889   make="${MAKE-gmake}"
 890   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 891   if test -f /usr/include/sys/soundcard.h ; then
 892     audio_drv_list="oss try-sdl"
 893   fi
 894   audio_possible_drivers="oss sdl"
 895 # needed for CMSG_ macros in sys/socket.h
 896   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 897 # needed for TIOCWIN* defines in termios.h
 898   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 899 ;;
 900 Haiku)
 901   haiku="yes"
 902   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -DBSD_SOURCE $QEMU_CFLAGS"
 903 ;;
 904 Linux)
 905   audio_drv_list="try-pa oss"
 906   audio_possible_drivers="oss alsa sdl pa"
 907   linux="yes"
 908   linux_user="yes"
 909   kvm="yes"
 910   QEMU_INCLUDES="-isystem ${source_path}/linux-headers -Ilinux-headers $QEMU_INCLUDES"
 911 ;;
 912 esac
 913
 914 if [ "$bsd" = "yes" ] ; then
 915   if [ "$darwin" != "yes" ] ; then
 916     bsd_user="yes"
 917   fi
 918 fi
 919
 920 : ${make=${MAKE-make}}
 921
 922 # We prefer python 3.x. A bare 'python' is traditionally
 923 # python 2.x, but some distros have it as python 3.x, so
 924 # we check that too
 925 python=
 926 explicit_python=no
 927 for binary in "${PYTHON-python3}" python
 928 do
 929     if has "$binary"
 930     then
 931         python=$(command -v "$binary")
 932         break
 933     fi
 934 done
 935
 936 sphinx_build=
 937 for binary in sphinx-build-3 sphinx-build
 938 do
 939     if has "$binary"
 940     then
 941         sphinx_build=$(command -v "$binary")
 942         break
 943     fi
 944 done
 945
 946 # Check for ancillary tools used in testing
 947 genisoimage=
 948 for binary in genisoimage mkisofs
 949 do
 950     if has $binary
 951     then
 952         genisoimage=$(command -v "$binary")
 953         break
 954     fi
 955 done
 956
 957 : ${smbd=${SMBD-/usr/sbin/smbd}}
 958
 959 # Default objcc to clang if available, otherwise use CC
 960 if has clang; then
 961   objcc=clang
 962 else
 963   objcc="$cc"
 964 fi
 965
 966 if test "$mingw32" = "yes" ; then
 967   EXESUF=".exe"
 968   HOST_DSOSUF=".dll"
 969   # MinGW needs -mthreads for TLS and macro _MT.
 970   CFLAGS="-mthreads $CFLAGS"
 971   write_c_skeleton;
 972   prefix="c:/Program Files/QEMU"
 973   qemu_suffix=""
 974   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 975 fi
 976
 977 werror=""
 978
 979 for opt do
 980   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 981   case "$opt" in
 982   --help|-h) show_help=yes
 983   ;;
 984   --version|-V) exec cat $source_path/VERSION
 985   ;;
 986   --prefix=*) prefix="$optarg"
 987   ;;
 988   --interp-prefix=*) interp_prefix="$optarg"
 989   ;;
 990   --cross-prefix=*)
 991   ;;
 992   --cc=*)
 993   ;;
 994   --host-cc=*) host_cc="$optarg"
 995   ;;
 996   --cxx=*)
 997   ;;
 998   --iasl=*) iasl="$optarg"
 999   ;;
1000   --objcc=*) objcc="$optarg"
1001   ;;
1002   --make=*) make="$optarg"
1003   ;;
1004   --install=*)
1005   ;;
1006   --python=*) python="$optarg" ; explicit_python=yes
1007   ;;
1008   --sphinx-build=*) sphinx_build="$optarg"
1009   ;;
1010   --skip-meson) skip_meson=yes
1011   ;;
1012   --meson=*) meson="$optarg"
1013   ;;
1014   --ninja=*) ninja="$optarg"
1015   ;;
1016   --smbd=*) smbd="$optarg"
1017   ;;
1018   --extra-cflags=*)
1019   ;;
1020   --extra-cxxflags=*)
1021   ;;
1022   --extra-ldflags=*)
1023   ;;
1024   --enable-debug-info)
1025   ;;
1026   --disable-debug-info)
1027   ;;
1028   --cross-cc-*)
1029   ;;
1030   --enable-modules)
1031       modules="yes"
1032   ;;
1033   --disable-modules)
1034       modules="no"
1035   ;;
1036   --disable-module-upgrades) module_upgrades="no"
1037   ;;
1038   --enable-module-upgrades) module_upgrades="yes"
1039   ;;
1040   --cpu=*)
1041   ;;
1042   --target-list=*) target_list="$optarg"
1043                    if test "$target_list_exclude"; then
1044                        error_exit "Can't mix --target-list with --target-list-exclude"
1045                    fi
1046   ;;
1047   --target-list-exclude=*) target_list_exclude="$optarg"
1048                    if test "$target_list"; then
1049                        error_exit "Can't mix --target-list-exclude with --target-list"
1050                    fi
1051   ;;
1052   --enable-trace-backends=*) trace_backends="$optarg"
1053   ;;
1054   # XXX: backwards compatibility
1055   --enable-trace-backend=*) trace_backends="$optarg"
1056   ;;
1057   --with-trace-file=*) trace_file="$optarg"
1058   ;;
1059   --with-default-devices) default_devices="yes"
1060   ;;
1061   --without-default-devices) default_devices="no"
1062   ;;
1063   --enable-gprof) gprof="yes"
1064   ;;
1065   --enable-gcov) gcov="yes"
1066   ;;
1067   --static)
1068     static="yes"
1069     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
1070   ;;
1071   --mandir=*) mandir="$optarg"
1072   ;;
1073   --bindir=*) bindir="$optarg"
1074   ;;
1075   --libdir=*) libdir="$optarg"
1076   ;;
1077   --libexecdir=*) libexecdir="$optarg"
1078   ;;
1079   --includedir=*) includedir="$optarg"
1080   ;;
1081   --datadir=*) datadir="$optarg"
1082   ;;
1083   --with-suffix=*) qemu_suffix="$optarg"
1084   ;;
1085   --docdir=*) qemu_docdir="$optarg"
1086   ;;
1087   --sysconfdir=*) sysconfdir="$optarg"
1088   ;;
1089   --localstatedir=*) local_statedir="$optarg"
1090   ;;
1091   --firmwarepath=*) firmwarepath="$optarg"
1092   ;;
1093   --host=*|--build=*|\
1094   --disable-dependency-tracking|\
1095   --sbindir=*|--sharedstatedir=*|\
1096   --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
1097   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
1098     # These switches are silently ignored, for compatibility with
1099     # autoconf-generated configure scripts. This allows QEMU's
1100     # configure to be used by RPM and similar macros that set
1101     # lots of directory switches by default.
1102   ;;
1103   --disable-sdl) sdl="disabled"
1104   ;;
1105   --enable-sdl) sdl="enabled"
1106   ;;
1107   --disable-sdl-image) sdl_image="disabled"
1108   ;;
1109   --enable-sdl-image) sdl_image="enabled"
1110   ;;
1111   --disable-qom-cast-debug) qom_cast_debug="no"
1112   ;;
1113   --enable-qom-cast-debug) qom_cast_debug="yes"
1114   ;;
1115   --disable-virtfs) virtfs="no"
1116   ;;
1117   --enable-virtfs) virtfs="yes"
1118   ;;
1119   --disable-mpath) mpath="disabled"
1120   ;;
1121   --enable-mpath) mpath="enabled"
1122   ;;
1123   --disable-vnc) vnc="disabled"
1124   ;;
1125   --enable-vnc) vnc="enabled"
1126   ;;
1127   --disable-gettext) gettext="false"
1128   ;;
1129   --enable-gettext) gettext="true"
1130   ;;
1131   --oss-lib=*) oss_lib="$optarg"
1132   ;;
1133   --audio-drv-list=*) audio_drv_list="$optarg"
1134   ;;
1135   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1136   ;;
1137   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1138   ;;
1139   --enable-debug-tcg) debug_tcg="yes"
1140   ;;
1141   --disable-debug-tcg) debug_tcg="no"
1142   ;;
1143   --enable-debug)
1144       # Enable debugging options that aren't excessively noisy
1145       debug_tcg="yes"
1146       debug_mutex="yes"
1147       debug="yes"
1148       strip_opt="no"
1149       fortify_source="no"
1150   ;;
1151   --enable-sanitizers) sanitizers="yes"
1152   ;;
1153   --disable-sanitizers) sanitizers="no"
1154   ;;
1155   --enable-tsan) tsan="yes"
1156   ;;
1157   --disable-tsan) tsan="no"
1158   ;;
1159   --enable-sparse) sparse="yes"
1160   ;;
1161   --disable-sparse) sparse="no"
1162   ;;
1163   --disable-strip) strip_opt="no"
1164   ;;
1165   --disable-vnc-sasl) vnc_sasl="disabled"
1166   ;;
1167   --enable-vnc-sasl) vnc_sasl="enabled"
1168   ;;
1169   --disable-vnc-jpeg) vnc_jpeg="disabled"
1170   ;;
1171   --enable-vnc-jpeg) vnc_jpeg="enabled"
1172   ;;
1173   --disable-vnc-png) vnc_png="disabled"
1174   ;;
1175   --enable-vnc-png) vnc_png="enabled"
1176   ;;
1177   --disable-slirp) slirp="no"
1178   ;;
1179   --enable-slirp=git) slirp="git"
1180   ;;
1181   --enable-slirp=system) slirp="system"
1182   ;;
1183   --disable-vde) vde="no"
1184   ;;
1185   --enable-vde) vde="yes"
1186   ;;
1187   --disable-netmap) netmap="no"
1188   ;;
1189   --enable-netmap) netmap="yes"
1190   ;;
1191   --disable-xen) xen="no"
1192   ;;
1193   --enable-xen) xen="yes"
1194   ;;
1195   --disable-xen-pci-passthrough) xen_pci_passthrough="no"
1196   ;;
1197   --enable-xen-pci-passthrough) xen_pci_passthrough="yes"
1198   ;;
1199   --disable-brlapi) brlapi="no"
1200   ;;
1201   --enable-brlapi) brlapi="yes"
1202   ;;
1203   --disable-kvm) kvm="no"
1204   ;;
1205   --enable-kvm) kvm="yes"
1206   ;;
1207   --disable-hax) hax="no"
1208   ;;
1209   --enable-hax) hax="yes"
1210   ;;
1211   --disable-hvf) hvf="no"
1212   ;;
1213   --enable-hvf) hvf="yes"
1214   ;;
1215   --disable-whpx) whpx="no"
1216   ;;
1217   --enable-whpx) whpx="yes"
1218   ;;
1219   --disable-tcg-interpreter) tcg_interpreter="no"
1220   ;;
1221   --enable-tcg-interpreter) tcg_interpreter="yes"
1222   ;;
1223   --disable-cap-ng)  cap_ng="no"
1224   ;;
1225   --enable-cap-ng) cap_ng="yes"
1226   ;;
1227   --disable-tcg) tcg="no"
1228   ;;
1229   --enable-tcg) tcg="yes"
1230   ;;
1231   --disable-malloc-trim) malloc_trim="no"
1232   ;;
1233   --enable-malloc-trim) malloc_trim="yes"
1234   ;;
1235   --disable-spice) spice="no"
1236   ;;
1237   --enable-spice) spice="yes"
1238   ;;
1239   --disable-libiscsi) libiscsi="no"
1240   ;;
1241   --enable-libiscsi) libiscsi="yes"
1242   ;;
1243   --disable-libnfs) libnfs="no"
1244   ;;
1245   --enable-libnfs) libnfs="yes"
1246   ;;
1247   --enable-profiler) profiler="yes"
1248   ;;
1249   --disable-cocoa) cocoa="no"
1250   ;;
1251   --enable-cocoa)
1252       cocoa="yes" ;
1253       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1254   ;;
1255   --disable-system) softmmu="no"
1256   ;;
1257   --enable-system) softmmu="yes"
1258   ;;
1259   --disable-user)
1260       linux_user="no" ;
1261       bsd_user="no" ;
1262   ;;
1263   --enable-user) ;;
1264   --disable-linux-user) linux_user="no"
1265   ;;
1266   --enable-linux-user) linux_user="yes"
1267   ;;
1268   --disable-bsd-user) bsd_user="no"
1269   ;;
1270   --enable-bsd-user) bsd_user="yes"
1271   ;;
1272   --enable-pie) pie="yes"
1273   ;;
1274   --disable-pie) pie="no"
1275   ;;
1276   --enable-werror) werror="yes"
1277   ;;
1278   --disable-werror) werror="no"
1279   ;;
1280   --enable-stack-protector) stack_protector="yes"
1281   ;;
1282   --disable-stack-protector) stack_protector="no"
1283   ;;
1284   --enable-safe-stack) safe_stack="yes"
1285   ;;
1286   --disable-safe-stack) safe_stack="no"
1287   ;;
1288   --disable-curses) curses="no"
1289   ;;
1290   --enable-curses) curses="yes"
1291   ;;
1292   --disable-iconv) iconv="no"
1293   ;;
1294   --enable-iconv) iconv="yes"
1295   ;;
1296   --disable-curl) curl="no"
1297   ;;
1298   --enable-curl) curl="yes"
1299   ;;
1300   --disable-fdt) fdt="no"
1301   ;;
1302   --enable-fdt) fdt="yes"
1303   ;;
1304   --disable-linux-aio) linux_aio="no"
1305   ;;
1306   --enable-linux-aio) linux_aio="yes"
1307   ;;
1308   --disable-linux-io-uring) linux_io_uring="no"
1309   ;;
1310   --enable-linux-io-uring) linux_io_uring="yes"
1311   ;;
1312   --disable-attr) attr="no"
1313   ;;
1314   --enable-attr) attr="yes"
1315   ;;
1316   --disable-membarrier) membarrier="no"
1317   ;;
1318   --enable-membarrier) membarrier="yes"
1319   ;;
1320   --disable-blobs) blobs="no"
1321   ;;
1322   --with-pkgversion=*) pkgversion="$optarg"
1323   ;;
1324   --with-coroutine=*) coroutine="$optarg"
1325   ;;
1326   --disable-coroutine-pool) coroutine_pool="no"
1327   ;;
1328   --enable-coroutine-pool) coroutine_pool="yes"
1329   ;;
1330   --enable-debug-stack-usage) debug_stack_usage="yes"
1331   ;;
1332   --enable-crypto-afalg) crypto_afalg="yes"
1333   ;;
1334   --disable-crypto-afalg) crypto_afalg="no"
1335   ;;
1336   --disable-docs) docs="no"
1337   ;;
1338   --enable-docs) docs="yes"
1339   ;;
1340   --disable-vhost-net) vhost_net="no"
1341   ;;
1342   --enable-vhost-net) vhost_net="yes"
1343   ;;
1344   --disable-vhost-crypto) vhost_crypto="no"
1345   ;;
1346   --enable-vhost-crypto) vhost_crypto="yes"
1347   ;;
1348   --disable-vhost-scsi) vhost_scsi="no"
1349   ;;
1350   --enable-vhost-scsi) vhost_scsi="yes"
1351   ;;
1352   --disable-vhost-vsock) vhost_vsock="no"
1353   ;;
1354   --enable-vhost-vsock) vhost_vsock="yes"
1355   ;;
1356   --disable-vhost-user-fs) vhost_user_fs="no"
1357   ;;
1358   --enable-vhost-user-fs) vhost_user_fs="yes"
1359   ;;
1360   --disable-opengl) opengl="no"
1361   ;;
1362   --enable-opengl) opengl="yes"
1363   ;;
1364   --disable-rbd) rbd="no"
1365   ;;
1366   --enable-rbd) rbd="yes"
1367   ;;
1368   --disable-xfsctl) xfs="no"
1369   ;;
1370   --enable-xfsctl) xfs="yes"
1371   ;;
1372   --disable-smartcard) smartcard="no"
1373   ;;
1374   --enable-smartcard) smartcard="yes"
1375   ;;
1376   --disable-u2f) u2f="disabled"
1377   ;;
1378   --enable-u2f) u2f="enabled"
1379   ;;
1380   --disable-libusb) libusb="no"
1381   ;;
1382   --enable-libusb) libusb="yes"
1383   ;;
1384   --disable-usb-redir) usb_redir="no"
1385   ;;
1386   --enable-usb-redir) usb_redir="yes"
1387   ;;
1388   --disable-zlib-test)
1389   ;;
1390   --disable-lzo) lzo="no"
1391   ;;
1392   --enable-lzo) lzo="yes"
1393   ;;
1394   --disable-snappy) snappy="no"
1395   ;;
1396   --enable-snappy) snappy="yes"
1397   ;;
1398   --disable-bzip2) bzip2="no"
1399   ;;
1400   --enable-bzip2) bzip2="yes"
1401   ;;
1402   --enable-lzfse) lzfse="yes"
1403   ;;
1404   --disable-lzfse) lzfse="no"
1405   ;;
1406   --disable-zstd) zstd="no"
1407   ;;
1408   --enable-zstd) zstd="yes"
1409   ;;
1410   --enable-guest-agent) guest_agent="yes"
1411   ;;
1412   --disable-guest-agent) guest_agent="no"
1413   ;;
1414   --enable-guest-agent-msi) guest_agent_msi="yes"
1415   ;;
1416   --disable-guest-agent-msi) guest_agent_msi="no"
1417   ;;
1418   --with-vss-sdk) vss_win32_sdk=""
1419   ;;
1420   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1421   ;;
1422   --without-vss-sdk) vss_win32_sdk="no"
1423   ;;
1424   --with-win-sdk) win_sdk=""
1425   ;;
1426   --with-win-sdk=*) win_sdk="$optarg"
1427   ;;
1428   --without-win-sdk) win_sdk="no"
1429   ;;
1430   --enable-tools) want_tools="yes"
1431   ;;
1432   --disable-tools) want_tools="no"
1433   ;;
1434   --enable-seccomp) seccomp="yes"
1435   ;;
1436   --disable-seccomp) seccomp="no"
1437   ;;
1438   --disable-glusterfs) glusterfs="no"
1439   ;;
1440   --disable-avx2) avx2_opt="no"
1441   ;;
1442   --enable-avx2) avx2_opt="yes"
1443   ;;
1444   --disable-avx512f) avx512f_opt="no"
1445   ;;
1446   --enable-avx512f) avx512f_opt="yes"
1447   ;;
1448
1449   --enable-glusterfs) glusterfs="yes"
1450   ;;
1451   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1452       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1453   ;;
1454   --enable-vhdx|--disable-vhdx)
1455       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1456   ;;
1457   --enable-uuid|--disable-uuid)
1458       echo "$0: $opt is obsolete, UUID support is always built" >&2
1459   ;;
1460   --disable-gtk) gtk="no"
1461   ;;
1462   --enable-gtk) gtk="yes"
1463   ;;
1464   --tls-priority=*) tls_priority="$optarg"
1465   ;;
1466   --disable-gnutls) gnutls="no"
1467   ;;
1468   --enable-gnutls) gnutls="yes"
1469   ;;
1470   --disable-nettle) nettle="no"
1471   ;;
1472   --enable-nettle) nettle="yes"
1473   ;;
1474   --disable-gcrypt) gcrypt="no"
1475   ;;
1476   --enable-gcrypt) gcrypt="yes"
1477   ;;
1478   --disable-auth-pam) auth_pam="no"
1479   ;;
1480   --enable-auth-pam) auth_pam="yes"
1481   ;;
1482   --enable-rdma) rdma="yes"
1483   ;;
1484   --disable-rdma) rdma="no"
1485   ;;
1486   --enable-pvrdma) pvrdma="yes"
1487   ;;
1488   --disable-pvrdma) pvrdma="no"
1489   ;;
1490   --disable-vte) vte="no"
1491   ;;
1492   --enable-vte) vte="yes"
1493   ;;
1494   --disable-virglrenderer) virglrenderer="no"
1495   ;;
1496   --enable-virglrenderer) virglrenderer="yes"
1497   ;;
1498   --disable-tpm) tpm="no"
1499   ;;
1500   --enable-tpm) tpm="yes"
1501   ;;
1502   --disable-libssh) libssh="no"
1503   ;;
1504   --enable-libssh) libssh="yes"
1505   ;;
1506   --disable-live-block-migration) live_block_migration="no"
1507   ;;
1508   --enable-live-block-migration) live_block_migration="yes"
1509   ;;
1510   --disable-numa) numa="no"
1511   ;;
1512   --enable-numa) numa="yes"
1513   ;;
1514   --disable-libxml2) libxml2="no"
1515   ;;
1516   --enable-libxml2) libxml2="yes"
1517   ;;
1518   --disable-tcmalloc) tcmalloc="no"
1519   ;;
1520   --enable-tcmalloc) tcmalloc="yes"
1521   ;;
1522   --disable-jemalloc) jemalloc="no"
1523   ;;
1524   --enable-jemalloc) jemalloc="yes"
1525   ;;
1526   --disable-replication) replication="no"
1527   ;;
1528   --enable-replication) replication="yes"
1529   ;;
1530   --disable-bochs) bochs="no"
1531   ;;
1532   --enable-bochs) bochs="yes"
1533   ;;
1534   --disable-cloop) cloop="no"
1535   ;;
1536   --enable-cloop) cloop="yes"
1537   ;;
1538   --disable-dmg) dmg="no"
1539   ;;
1540   --enable-dmg) dmg="yes"
1541   ;;
1542   --disable-qcow1) qcow1="no"
1543   ;;
1544   --enable-qcow1) qcow1="yes"
1545   ;;
1546   --disable-vdi) vdi="no"
1547   ;;
1548   --enable-vdi) vdi="yes"
1549   ;;
1550   --disable-vvfat) vvfat="no"
1551   ;;
1552   --enable-vvfat) vvfat="yes"
1553   ;;
1554   --disable-qed) qed="no"
1555   ;;
1556   --enable-qed) qed="yes"
1557   ;;
1558   --disable-parallels) parallels="no"
1559   ;;
1560   --enable-parallels) parallels="yes"
1561   ;;
1562   --disable-sheepdog) sheepdog="no"
1563   ;;
1564   --enable-sheepdog) sheepdog="yes"
1565   ;;
1566   --disable-vhost-user) vhost_user="no"
1567   ;;
1568   --enable-vhost-user) vhost_user="yes"
1569   ;;
1570   --disable-vhost-vdpa) vhost_vdpa="no"
1571   ;;
1572   --enable-vhost-vdpa) vhost_vdpa="yes"
1573   ;;
1574   --disable-vhost-kernel) vhost_kernel="no"
1575   ;;
1576   --enable-vhost-kernel) vhost_kernel="yes"
1577   ;;
1578   --disable-capstone) capstone="no"
1579   ;;
1580   --enable-capstone) capstone="yes"
1581   ;;
1582   --enable-capstone=git) capstone="git"
1583   ;;
1584   --enable-capstone=system) capstone="system"
1585   ;;
1586   --with-git=*) git="$optarg"
1587   ;;
1588   --enable-git-update) git_update=yes
1589   ;;
1590   --disable-git-update) git_update=no
1591   ;;
1592   --enable-debug-mutex) debug_mutex=yes
1593   ;;
1594   --disable-debug-mutex) debug_mutex=no
1595   ;;
1596   --enable-libpmem) libpmem=yes
1597   ;;
1598   --disable-libpmem) libpmem=no
1599   ;;
1600   --enable-xkbcommon) xkbcommon="enabled"
1601   ;;
1602   --disable-xkbcommon) xkbcommon="disabled"
1603   ;;
1604   --enable-plugins) plugins="yes"
1605   ;;
1606   --disable-plugins) plugins="no"
1607   ;;
1608   --enable-containers) use_containers="yes"
1609   ;;
1610   --disable-containers) use_containers="no"
1611   ;;
1612   --enable-fuzzing) fuzzing=yes
1613   ;;
1614   --disable-fuzzing) fuzzing=no
1615   ;;
1616   --gdb=*) gdb_bin="$optarg"
1617   ;;
1618   --enable-rng-none) rng_none=yes
1619   ;;
1620   --disable-rng-none) rng_none=no
1621   ;;
1622   --enable-keyring) secret_keyring="yes"
1623   ;;
1624   --disable-keyring) secret_keyring="no"
1625   ;;
1626   --enable-libdaxctl) libdaxctl=yes
1627   ;;
1628   --disable-libdaxctl) libdaxctl=no
1629   ;;
1630   *)
1631       echo "ERROR: unknown option $opt"
1632       echo "Try '$0 --help' for more information"
1633       exit 1
1634   ;;
1635   esac
1636 done
1637
1638 firmwarepath="${firmwarepath:-$prefix/share/qemu-firmware}"
1639 libdir="${libdir:-$prefix/lib}"
1640 libexecdir="${libexecdir:-$prefix/libexec}"
1641 includedir="${includedir:-$prefix/include}"
1642
1643 if test "$mingw32" = "yes" ; then
1644     mandir="$prefix"
1645     datadir="$prefix"
1646     docdir="$prefix"
1647     bindir="$prefix"
1648     sysconfdir="$prefix"
1649     local_statedir=
1650 else
1651     mandir="${mandir:-$prefix/share/man}"
1652     datadir="${datadir:-$prefix/share}"
1653     docdir="${docdir:-$prefix/share/doc}"
1654     bindir="${bindir:-$prefix/bin}"
1655     sysconfdir="${sysconfdir:-$prefix/etc}"
1656     local_statedir="${local_statedir:-$prefix/var}"
1657 fi
1658
1659 case "$cpu" in
1660     ppc)
1661            CPU_CFLAGS="-m32"
1662            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1663            ;;
1664     ppc64)
1665            CPU_CFLAGS="-m64"
1666            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1667            ;;
1668     sparc)
1669            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1670            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1671            ;;
1672     sparc64)
1673            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1674            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1675            ;;
1676     s390)
1677            CPU_CFLAGS="-m31"
1678            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1679            ;;
1680     s390x)
1681            CPU_CFLAGS="-m64"
1682            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1683            ;;
1684     i386)
1685            CPU_CFLAGS="-m32"
1686            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1687            ;;
1688     x86_64)
1689            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1690            # If we truly care, we should simply detect this case at
1691            # runtime and generate the fallback to serial emulation.
1692            CPU_CFLAGS="-m64 -mcx16"
1693            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1694            ;;
1695     x32)
1696            CPU_CFLAGS="-mx32"
1697            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1698            ;;
1699     # No special flags required for other host CPUs
1700 esac
1701
1702 eval "cross_cc_${cpu}=\$host_cc"
1703 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1704 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1705
1706 # For user-mode emulation the host arch has to be one we explicitly
1707 # support, even if we're using TCI.
1708 if [ "$ARCH" = "unknown" ]; then
1709   bsd_user="no"
1710   linux_user="no"
1711 fi
1712
1713 if [ "$bsd_user" = "no" -a "$linux_user" = "no" -a "$softmmu" = "no" ] ; then
1714   tcg="no"
1715 fi
1716
1717 default_target_list=""
1718
1719 mak_wilds=""
1720
1721 if [ "$softmmu" = "yes" ]; then
1722     mak_wilds="${mak_wilds} $source_path/default-configs/*-softmmu.mak"
1723 fi
1724 if [ "$linux_user" = "yes" ]; then
1725     mak_wilds="${mak_wilds} $source_path/default-configs/*-linux-user.mak"
1726 fi
1727 if [ "$bsd_user" = "yes" ]; then
1728     mak_wilds="${mak_wilds} $source_path/default-configs/*-bsd-user.mak"
1729 fi
1730
1731 # If the user doesn't explicitly specify a deprecated target we will
1732 # skip it.
1733 if test -z "$target_list"; then
1734     if test -z "$target_list_exclude"; then
1735         target_list_exclude="$deprecated_targets_list"
1736     else
1737         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1738     fi
1739 fi
1740
1741 for config in $mak_wilds; do
1742     target="$(basename "$config" .mak)"
1743     if echo "$target_list_exclude" | grep -vq "$target"; then
1744         default_target_list="${default_target_list} $target"
1745     fi
1746 done
1747
1748 # Enumerate public trace backends for --help output
1749 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1750
1751 if test x"$show_help" = x"yes" ; then
1752 cat << EOF
1753
1754 Usage: configure [options]
1755 Options: [defaults in brackets after descriptions]
1756
1757 Standard options:
1758   --help                   print this message
1759   --prefix=PREFIX          install in PREFIX [$prefix]
1760   --interp-prefix=PREFIX   where to find shared libraries, etc.
1761                            use %M for cpu name [$interp_prefix]
1762   --target-list=LIST       set target list (default: build everything)
1763 $(echo Available targets: $default_target_list | \
1764   fold -s -w 53 | sed -e 's/^/                           /')
1765   --target-list-exclude=LIST exclude a set of targets from the default target-list
1766
1767 Advanced options (experts only):
1768   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1769   --cc=CC                  use C compiler CC [$cc]
1770   --iasl=IASL              use ACPI compiler IASL [$iasl]
1771   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1772                            build time
1773   --cxx=CXX                use C++ compiler CXX [$cxx]
1774   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1775   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1776   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1777   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1778   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1779   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1780   --make=MAKE              use specified make [$make]
1781   --python=PYTHON          use specified python [$python]
1782   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1783   --meson=MESON            use specified meson [$meson]
1784   --ninja=NINJA            use specified ninja [$ninja]
1785   --smbd=SMBD              use specified smbd [$smbd]
1786   --with-git=GIT           use specified git [$git]
1787   --static                 enable static build [$static]
1788   --mandir=PATH            install man pages in PATH
1789   --datadir=PATH           install firmware in PATH/$qemu_suffix
1790   --docdir=PATH            install documentation in PATH/$qemu_suffix
1791   --bindir=PATH            install binaries in PATH
1792   --libdir=PATH            install libraries in PATH
1793   --libexecdir=PATH        install helper binaries in PATH
1794   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1795   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1796   --firmwarepath=PATH      search PATH for firmware files
1797   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1798   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1799   --with-pkgversion=VERS   use specified string as sub-version of the package
1800   --enable-debug           enable common debug build options
1801   --enable-sanitizers      enable default sanitizers
1802   --enable-tsan            enable thread sanitizer
1803   --disable-strip          disable stripping binaries
1804   --disable-werror         disable compilation abort on warning
1805   --disable-stack-protector disable compiler-provided stack protection
1806   --audio-drv-list=LIST    set audio drivers list:
1807                            Available drivers: $audio_possible_drivers
1808   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1809   --block-drv-rw-whitelist=L
1810                            set block driver read-write whitelist
1811                            (affects only QEMU, not qemu-img)
1812   --block-drv-ro-whitelist=L
1813                            set block driver read-only whitelist
1814                            (affects only QEMU, not qemu-img)
1815   --enable-trace-backends=B Set trace backend
1816                            Available backends: $trace_backend_list
1817   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1818                            Default:trace-<pid>
1819   --disable-slirp          disable SLIRP userspace network connectivity
1820   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1821   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1822   --oss-lib                path to OSS library
1823   --cpu=CPU                Build for host CPU [$cpu]
1824   --with-coroutine=BACKEND coroutine backend. Supported options:
1825                            ucontext, sigaltstack, windows
1826   --enable-gcov            enable test coverage analysis with gcov
1827   --disable-blobs          disable installing provided firmware blobs
1828   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1829   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1830   --tls-priority           default TLS protocol/cipher priority string
1831   --enable-gprof           QEMU profiling with gprof
1832   --enable-profiler        profiler support
1833   --enable-debug-stack-usage
1834                            track the maximum stack usage of stacks created by qemu_alloc_stack
1835   --enable-plugins
1836                            enable plugins via shared library loading
1837   --disable-containers     don't use containers for cross-building
1838   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1839
1840 Optional features, enabled with --enable-FEATURE and
1841 disabled with --disable-FEATURE, default is enabled if available:
1842
1843   system          all system emulation targets
1844   user            supported user emulation targets
1845   linux-user      all linux usermode emulation targets
1846   bsd-user        all BSD usermode emulation targets
1847   docs            build documentation
1848   guest-agent     build the QEMU Guest Agent
1849   guest-agent-msi build guest agent Windows MSI installation package
1850   pie             Position Independent Executables
1851   modules         modules support (non-Windows)
1852   module-upgrades try to load modules from alternate paths for upgrades
1853   debug-tcg       TCG debugging (default is disabled)
1854   debug-info      debugging information
1855   sparse          sparse checker
1856   safe-stack      SafeStack Stack Smash Protection. Depends on
1857                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1858
1859   gnutls          GNUTLS cryptography support
1860   nettle          nettle cryptography support
1861   gcrypt          libgcrypt cryptography support
1862   auth-pam        PAM access control
1863   sdl             SDL UI
1864   sdl-image       SDL Image support for icons
1865   gtk             gtk UI
1866   vte             vte support for the gtk UI
1867   curses          curses UI
1868   iconv           font glyph conversion support
1869   vnc             VNC UI support
1870   vnc-sasl        SASL encryption for VNC server
1871   vnc-jpeg        JPEG lossy compression for VNC server
1872   vnc-png         PNG compression for VNC server
1873   cocoa           Cocoa UI (Mac OS X only)
1874   virtfs          VirtFS
1875   mpath           Multipath persistent reservation passthrough
1876   xen             xen backend driver support
1877   xen-pci-passthrough    PCI passthrough support for Xen
1878   brlapi          BrlAPI (Braile)
1879   curl            curl connectivity
1880   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1881   fdt             fdt device tree
1882   kvm             KVM acceleration support
1883   hax             HAX acceleration support
1884   hvf             Hypervisor.framework acceleration support
1885   whpx            Windows Hypervisor Platform acceleration support
1886   rdma            Enable RDMA-based migration
1887   pvrdma          Enable PVRDMA support
1888   vde             support for vde network
1889   netmap          support for netmap network
1890   linux-aio       Linux AIO support
1891   linux-io-uring  Linux io_uring support
1892   cap-ng          libcap-ng support
1893   attr            attr and xattr support
1894   vhost-net       vhost-net kernel acceleration support
1895   vhost-vsock     virtio sockets device support
1896   vhost-scsi      vhost-scsi kernel target support
1897   vhost-crypto    vhost-user-crypto backend support
1898   vhost-kernel    vhost kernel backend support
1899   vhost-user      vhost-user backend support
1900   vhost-vdpa      vhost-vdpa kernel backend support
1901   spice           spice
1902   rbd             rados block device (rbd)
1903   libiscsi        iscsi support
1904   libnfs          nfs support
1905   smartcard       smartcard support (libcacard)
1906   u2f             U2F support (u2f-emu)
1907   libusb          libusb (for usb passthrough)
1908   live-block-migration   Block migration in the main migration stream
1909   usb-redir       usb network redirection support
1910   lzo             support of lzo compression library
1911   snappy          support of snappy compression library
1912   bzip2           support of bzip2 compression library
1913                   (for reading bzip2-compressed dmg images)
1914   lzfse           support of lzfse compression library
1915                   (for reading lzfse-compressed dmg images)
1916   zstd            support for zstd compression library
1917                   (for migration compression and qcow2 cluster compression)
1918   seccomp         seccomp support
1919   coroutine-pool  coroutine freelist (better performance)
1920   glusterfs       GlusterFS backend
1921   tpm             TPM support
1922   libssh          ssh block device support
1923   numa            libnuma support
1924   libxml2         for Parallels image format
1925   tcmalloc        tcmalloc support
1926   jemalloc        jemalloc support
1927   avx2            AVX2 optimization support
1928   avx512f         AVX512F optimization support
1929   replication     replication support
1930   opengl          opengl support
1931   virglrenderer   virgl rendering support
1932   xfsctl          xfsctl support
1933   qom-cast-debug  cast debugging support
1934   tools           build qemu-io, qemu-nbd and qemu-img tools
1935   bochs           bochs image format support
1936   cloop           cloop image format support
1937   dmg             dmg image format support
1938   qcow1           qcow v1 image format support
1939   vdi             vdi image format support
1940   vvfat           vvfat image format support
1941   qed             qed image format support
1942   parallels       parallels image format support
1943   sheepdog        sheepdog block driver support
1944   crypto-afalg    Linux AF_ALG crypto backend driver
1945   capstone        capstone disassembler support
1946   debug-mutex     mutex debugging support
1947   libpmem         libpmem support
1948   xkbcommon       xkbcommon support
1949   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1950   libdaxctl       libdaxctl support
1951
1952 NOTE: The object files are built at the place where configure is launched
1953 EOF
1954 exit 0
1955 fi
1956
1957 # Remove old dependency files to make sure that they get properly regenerated
1958 rm -f */config-devices.mak.d
1959
1960 if test -z "$python"
1961 then
1962     error_exit "Python not found. Use --python=/path/to/python"
1963 fi
1964
1965 # Note that if the Python conditional here evaluates True we will exit
1966 # with status 1 which is a shell 'false' value.
1967 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,5))'; then
1968   error_exit "Cannot use '$python', Python >= 3.5 is required." \
1969       "Use --python=/path/to/python to specify a supported Python."
1970 fi
1971
1972 # Preserve python version since some functionality is dependent on it
1973 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)
1974
1975 # Suppress writing compiled files
1976 python="$python -B"
1977
1978 if test -z "$meson"; then
1979     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.1; then
1980         meson=meson
1981     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1982         meson=git
1983     elif test -e "${source_path}/meson/meson.py" ; then
1984         meson=internal
1985     else
1986         if test "$explicit_python" = yes; then
1987             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1988         else
1989             error_exit "Meson not found.  Use --meson=/path/to/meson"
1990         fi
1991     fi
1992 else
1993     # Meson uses its own Python interpreter to invoke other Python scripts,
1994     # but the user wants to use the one they specified with --python.
1995     #
1996     # We do not want to override the distro Python interpreter (and sometimes
1997     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1998     # just require --meson=git|internal together with --python.
1999     if test "$explicit_python" = yes; then
2000         case "$meson" in
2001             git | internal) ;;
2002             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
2003         esac
2004     fi
2005 fi
2006
2007 if test "$meson" = git; then
2008     git_submodules="${git_submodules} meson"
2009 fi
2010
2011 case "$meson" in
2012     git | internal)
2013         if ! $python -c 'import pkg_resources' > /dev/null 2>&1; then
2014             error_exit "Python setuptools not found"
2015         fi
2016         meson="$python ${source_path}/meson/meson.py"
2017         ;;
2018     *) meson=$(command -v meson) ;;
2019 esac
2020
2021 # Probe for ninja (used for compdb)
2022
2023 if test -z "$ninja"; then
2024     for c in ninja ninja-build samu; do
2025         if has $c; then
2026             ninja=$(command -v "$c")
2027             break
2028         fi
2029     done
2030 fi
2031
2032 # Check that the C compiler works. Doing this here before testing
2033 # the host CPU ensures that we had a valid CC to autodetect the
2034 # $cpu var (and we should bail right here if that's not the case).
2035 # It also allows the help message to be printed without a CC.
2036 write_c_skeleton;
2037 if compile_object ; then
2038   : C compiler works ok
2039 else
2040     error_exit "\"$cc\" either does not exist or does not work"
2041 fi
2042 if ! compile_prog ; then
2043     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
2044 fi
2045
2046 # Now we have handled --enable-tcg-interpreter and know we're not just
2047 # printing the help message, bail out if the host CPU isn't supported.
2048 if test "$ARCH" = "unknown"; then
2049     if test "$tcg_interpreter" = "yes" ; then
2050         echo "Unsupported CPU = $cpu, will use TCG with TCI (experimental)"
2051     else
2052         error_exit "Unsupported CPU = $cpu, try --enable-tcg-interpreter"
2053     fi
2054 fi
2055
2056 # Consult white-list to determine whether to enable werror
2057 # by default.  Only enable by default for git builds
2058 if test -z "$werror" ; then
2059     if test -e "$source_path/.git" && \
2060         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2061         werror="yes"
2062     else
2063         werror="no"
2064     fi
2065 fi
2066
2067 if test "$bogus_os" = "yes"; then
2068     # Now that we know that we're not printing the help and that
2069     # the compiler works (so the results of the check_defines we used
2070     # to identify the OS are reliable), if we didn't recognize the
2071     # host OS we should stop now.
2072     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2073 fi
2074
2075 # Check whether the compiler matches our minimum requirements:
2076 cat > $TMPC << EOF
2077 #if defined(__clang_major__) && defined(__clang_minor__)
2078 # ifdef __apple_build_version__
2079 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
2080 #   error You need at least XCode Clang v5.1 to compile QEMU
2081 #  endif
2082 # else
2083 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
2084 #   error You need at least Clang v3.4 to compile QEMU
2085 #  endif
2086 # endif
2087 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2088 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
2089 #  error You need at least GCC v4.8 to compile QEMU
2090 # endif
2091 #else
2092 # error You either need GCC or Clang to compiler QEMU
2093 #endif
2094 int main (void) { return 0; }
2095 EOF
2096 if ! compile_prog "" "" ; then
2097     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2098 fi
2099
2100 # Accumulate -Wfoo and -Wno-bar separately.
2101 # We will list all of the enable flags first, and the disable flags second.
2102 # Note that we do not add -Werror, because that would enable it for all
2103 # configure tests. If a configure test failed due to -Werror this would
2104 # just silently disable some features, so it's too error prone.
2105
2106 warn_flags=
2107 add_to warn_flags -Wold-style-declaration
2108 add_to warn_flags -Wold-style-definition
2109 add_to warn_flags -Wtype-limits
2110 add_to warn_flags -Wformat-security
2111 add_to warn_flags -Wformat-y2k
2112 add_to warn_flags -Winit-self
2113 add_to warn_flags -Wignored-qualifiers
2114 add_to warn_flags -Wempty-body
2115 add_to warn_flags -Wnested-externs
2116 add_to warn_flags -Wendif-labels
2117 add_to warn_flags -Wexpansion-to-defined
2118
2119 nowarn_flags=
2120 add_to nowarn_flags -Wno-initializer-overrides
2121 add_to nowarn_flags -Wno-missing-include-dirs
2122 add_to nowarn_flags -Wno-shift-negative-value
2123 add_to nowarn_flags -Wno-string-plus-int
2124 add_to nowarn_flags -Wno-typedef-redefinition
2125 add_to nowarn_flags -Wno-tautological-type-limit-compare
2126 add_to nowarn_flags -Wno-psabi
2127
2128 gcc_flags="$warn_flags $nowarn_flags"
2129
2130 cc_has_warning_flag() {
2131     write_c_skeleton;
2132
2133     # Use the positive sense of the flag when testing for -Wno-wombat
2134     # support (gcc will happily accept the -Wno- form of unknown
2135     # warning options).
2136     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2137     compile_prog "-Werror $optflag" ""
2138 }
2139
2140 for flag in $gcc_flags; do
2141     if cc_has_warning_flag $flag ; then
2142         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2143     fi
2144 done
2145
2146 if test "$stack_protector" != "no"; then
2147   cat > $TMPC << EOF
2148 int main(int argc, char *argv[])
2149 {
2150     char arr[64], *p = arr, *c = argv[0];
2151     while (*c) {
2152         *p++ = *c++;
2153     }
2154     return 0;
2155 }
2156 EOF
2157   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2158   sp_on=0
2159   for flag in $gcc_flags; do
2160     # We need to check both a compile and a link, since some compiler
2161     # setups fail only on a .c->.o compile and some only at link time
2162     if compile_object "-Werror $flag" &&
2163        compile_prog "-Werror $flag" ""; then
2164       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2165       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2166       sp_on=1
2167       break
2168     fi
2169   done
2170   if test "$stack_protector" = yes; then
2171     if test $sp_on = 0; then
2172       error_exit "Stack protector not supported"
2173     fi
2174   fi
2175 fi
2176
2177 # Disable -Wmissing-braces on older compilers that warn even for
2178 # the "universal" C zero initializer {0}.
2179 cat > $TMPC << EOF
2180 struct {
2181   int a[2];
2182 } x = {0};
2183 EOF
2184 if compile_object "-Werror" "" ; then
2185   :
2186 else
2187   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2188 fi
2189
2190 # Our module code doesn't support Windows
2191 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2192   error_exit "Modules are not available for Windows"
2193 fi
2194
2195 # module_upgrades is only reasonable if modules are enabled
2196 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2197   error_exit "Can't enable module-upgrades as Modules are not enabled"
2198 fi
2199
2200 # Static linking is not possible with modules or PIE
2201 if test "$static" = "yes" ; then
2202   if test "$modules" = "yes" ; then
2203     error_exit "static and modules are mutually incompatible"
2204   fi
2205 fi
2206
2207 # Unconditional check for compiler __thread support
2208   cat > $TMPC << EOF
2209 static __thread int tls_var;
2210 int main(void) { return tls_var; }
2211 EOF
2212
2213 if ! compile_prog "-Werror" "" ; then
2214     error_exit "Your compiler does not support the __thread specifier for " \
2215         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2216 fi
2217
2218 cat > $TMPC << EOF
2219
2220 #ifdef __linux__
2221 #  define THREAD __thread
2222 #else
2223 #  define THREAD
2224 #endif
2225 static THREAD int tls_var;
2226 int main(void) { return tls_var; }
2227 EOF
2228
2229 # Check we support --no-pie first; we will need this for building ROMs.
2230 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2231   CFLAGS_NOPIE="-fno-pie"
2232   LDFLAGS_NOPIE="-no-pie"
2233 fi
2234
2235 if test "$static" = "yes"; then
2236   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2237     CFLAGS="-fPIE -DPIE $CFLAGS"
2238     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2239     pie="yes"
2240   elif test "$pie" = "yes"; then
2241     error_exit "-static-pie not available due to missing toolchain support"
2242   else
2243     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2244     pie="no"
2245   fi
2246 elif test "$pie" = "no"; then
2247   CFLAGS="$CFLAGS_NOPIE $CFLAGS"
2248   LDFLAGS="$LDFLAGS_NOPIE $LDFLAGS"
2249 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2250   CFLAGS="-fPIE -DPIE $CFLAGS"
2251   LDFLAGS="-pie $LDFLAGS"
2252   pie="yes"
2253 elif test "$pie" = "yes"; then
2254   error_exit "PIE not available due to missing toolchain support"
2255 else
2256   echo "Disabling PIE due to missing toolchain support"
2257   pie="no"
2258 fi
2259
2260 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2261 # The combination is known as "full relro", because .got.plt is read-only too.
2262 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2263   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2264 fi
2265
2266 ##########################################
2267 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2268 # use i686 as default anyway, but for those that don't, an explicit
2269 # specification is necessary
2270
2271 if test "$cpu" = "i386"; then
2272   cat > $TMPC << EOF
2273 static int sfaa(int *ptr)
2274 {
2275   return __sync_fetch_and_and(ptr, 0);
2276 }
2277
2278 int main(void)
2279 {
2280   int val = 42;
2281   val = __sync_val_compare_and_swap(&val, 0, 1);
2282   sfaa(&val);
2283   return val;
2284 }
2285 EOF
2286   if ! compile_prog "" "" ; then
2287     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2288   fi
2289 fi
2290
2291 #########################################
2292 # Solaris specific configure tool chain decisions
2293
2294 if test "$solaris" = "yes" ; then
2295   if has ar; then
2296     :
2297   else
2298     if test -f /usr/ccs/bin/ar ; then
2299       error_exit "No path includes ar" \
2300           "Add /usr/ccs/bin to your path and rerun configure"
2301     fi
2302     error_exit "No path includes ar"
2303   fi
2304 fi
2305
2306 if test -z "${target_list+xxx}" ; then
2307     for target in $default_target_list; do
2308         supported_target $target 2>/dev/null && \
2309             target_list="$target_list $target"
2310     done
2311     target_list="${target_list# }"
2312 else
2313     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2314     for target in $target_list; do
2315         # Check that we recognised the target name; this allows a more
2316         # friendly error message than if we let it fall through.
2317         case " $default_target_list " in
2318             *" $target "*)
2319                 ;;
2320             *)
2321                 error_exit "Unknown target name '$target'"
2322                 ;;
2323         esac
2324         supported_target $target || exit 1
2325     done
2326 fi
2327
2328 # see if system emulation was really requested
2329 case " $target_list " in
2330   *"-softmmu "*) softmmu=yes
2331   ;;
2332   *) softmmu=no
2333   ;;
2334 esac
2335
2336 for target in $target_list; do
2337   case "$target" in
2338     arm-softmmu | aarch64-softmmu | i386-softmmu | x86_64-softmmu)
2339       edk2_blobs="yes"
2340       ;;
2341   esac
2342 done
2343 # The EDK2 binaries are compressed with bzip2
2344 if test "$edk2_blobs" = "yes" && ! has bzip2; then
2345   error_exit "The bzip2 program is required for building QEMU"
2346 fi
2347
2348 feature_not_found() {
2349   feature=$1
2350   remedy=$2
2351
2352   error_exit "User requested feature $feature" \
2353       "configure was not able to find it." \
2354       "$remedy"
2355 }
2356
2357 # ---
2358 # big/little endian test
2359 cat > $TMPC << EOF
2360 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2361 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2362 extern int foo(short *, short *);
2363 int main(int argc, char *argv[]) {
2364     return foo(big_endian, little_endian);
2365 }
2366 EOF
2367
2368 if compile_object ; then
2369     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2370         bigendian="yes"
2371     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2372         bigendian="no"
2373     else
2374         echo big/little test failed
2375     fi
2376 else
2377     echo big/little test failed
2378 fi
2379
2380 ##########################################
2381 # system tools
2382 if test -z "$want_tools"; then
2383     if test "$softmmu" = "no"; then
2384         want_tools=no
2385     else
2386         want_tools=yes
2387     fi
2388 fi
2389
2390 ##########################################
2391 # cocoa implies not SDL or GTK
2392 # (the cocoa UI code currently assumes it is always the active UI
2393 # and doesn't interact well with other UI frontend code)
2394 if test "$cocoa" = "yes"; then
2395     if test "$sdl" = "yes"; then
2396         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2397     fi
2398     if test "$gtk" = "yes"; then
2399         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2400     fi
2401     gtk=no
2402     sdl=disabled
2403 fi
2404
2405 # Some versions of Mac OS X incorrectly define SIZE_MAX
2406 cat > $TMPC << EOF
2407 #include <stdint.h>
2408 #include <stdio.h>
2409 int main(int argc, char *argv[]) {
2410     return printf("%zu", SIZE_MAX);
2411 }
2412 EOF
2413 have_broken_size_max=no
2414 if ! compile_object -Werror ; then
2415     have_broken_size_max=yes
2416 fi
2417
2418 ##########################################
2419 # L2TPV3 probe
2420
2421 cat > $TMPC <<EOF
2422 #include <sys/socket.h>
2423 #include <linux/ip.h>
2424 int main(void) { return sizeof(struct mmsghdr); }
2425 EOF
2426 if compile_prog "" "" ; then
2427   l2tpv3=yes
2428 else
2429   l2tpv3=no
2430 fi
2431
2432 if check_include "pty.h" ; then
2433   pty_h=yes
2434 else
2435   pty_h=no
2436 fi
2437
2438 cat > $TMPC <<EOF
2439 #include <sys/mman.h>
2440 int main(int argc, char *argv[]) {
2441     return mlockall(MCL_FUTURE);
2442 }
2443 EOF
2444 if compile_prog "" "" ; then
2445   have_mlockall=yes
2446 else
2447   have_mlockall=no
2448 fi
2449
2450 #########################################
2451 # vhost interdependencies and host support
2452
2453 # vhost backends
2454 test "$vhost_user" = "" && vhost_user=yes
2455 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2456   error_exit "vhost-user isn't available on win32"
2457 fi
2458 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2459 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2460   error_exit "vhost-vdpa is only available on Linux"
2461 fi
2462 test "$vhost_kernel" = "" && vhost_kernel=$linux
2463 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2464   error_exit "vhost-kernel is only available on Linux"
2465 fi
2466
2467 # vhost-kernel devices
2468 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2469 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2470   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2471 fi
2472 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2473 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2474   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2475 fi
2476
2477 # vhost-user backends
2478 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2479 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2480   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2481 fi
2482 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2483 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2484   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2485 fi
2486 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2487 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2488   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2489 fi
2490 #vhost-vdpa backends
2491 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2492 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2493   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2494 fi
2495
2496 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2497 if test "$vhost_net" = ""; then
2498   test "$vhost_net_user" = "yes" && vhost_net=yes
2499   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2500   test "$vhost_kernel" = "yes" && vhost_net=yes
2501 fi
2502
2503 ##########################################
2504 # MinGW / Mingw-w64 localtime_r/gmtime_r check
2505
2506 if test "$mingw32" = "yes"; then
2507     # Some versions of MinGW / Mingw-w64 lack localtime_r
2508     # and gmtime_r entirely.
2509     #
2510     # Some versions of Mingw-w64 define a macro for
2511     # localtime_r/gmtime_r.
2512     #
2513     # Some versions of Mingw-w64 will define functions
2514     # for localtime_r/gmtime_r, but only if you have
2515     # _POSIX_THREAD_SAFE_FUNCTIONS defined. For fun
2516     # though, unistd.h and pthread.h both define
2517     # that for you.
2518     #
2519     # So this #undef localtime_r and #include <unistd.h>
2520     # are not in fact redundant.
2521 cat > $TMPC << EOF
2522 #include <unistd.h>
2523 #include <time.h>
2524 #undef localtime_r
2525 int main(void) { localtime_r(NULL, NULL); return 0; }
2526 EOF
2527     if compile_prog "" "" ; then
2528         localtime_r="yes"
2529     else
2530         localtime_r="no"
2531     fi
2532 fi
2533
2534 ##########################################
2535 # pkg-config probe
2536
2537 if ! has "$pkg_config_exe"; then
2538   error_exit "pkg-config binary '$pkg_config_exe' not found"
2539 fi
2540
2541 ##########################################
2542 # NPTL probe
2543
2544 if test "$linux_user" = "yes"; then
2545   cat > $TMPC <<EOF
2546 #include <sched.h>
2547 #include <linux/futex.h>
2548 int main(void) {
2549 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2550 #error bork
2551 #endif
2552   return 0;
2553 }
2554 EOF
2555   if ! compile_object ; then
2556     feature_not_found "nptl" "Install glibc and linux kernel headers."
2557   fi
2558 fi
2559
2560 ##########################################
2561 # lzo check
2562
2563 if test "$lzo" != "no" ; then
2564     cat > $TMPC << EOF
2565 #include <lzo/lzo1x.h>
2566 int main(void) { lzo_version(); return 0; }
2567 EOF
2568     if compile_prog "" "-llzo2" ; then
2569         lzo_libs="-llzo2"
2570         lzo="yes"
2571     else
2572         if test "$lzo" = "yes"; then
2573             feature_not_found "liblzo2" "Install liblzo2 devel"
2574         fi
2575         lzo="no"
2576     fi
2577 fi
2578
2579 ##########################################
2580 # snappy check
2581
2582 if test "$snappy" != "no" ; then
2583     cat > $TMPC << EOF
2584 #include <snappy-c.h>
2585 int main(void) { snappy_max_compressed_length(4096); return 0; }
2586 EOF
2587     if compile_prog "" "-lsnappy" ; then
2588         snappy_libs='-lsnappy'
2589         snappy="yes"
2590     else
2591         if test "$snappy" = "yes"; then
2592             feature_not_found "libsnappy" "Install libsnappy devel"
2593         fi
2594         snappy="no"
2595     fi
2596 fi
2597
2598 ##########################################
2599 # bzip2 check
2600
2601 if test "$bzip2" != "no" ; then
2602     cat > $TMPC << EOF
2603 #include <bzlib.h>
2604 int main(void) { BZ2_bzlibVersion(); return 0; }
2605 EOF
2606     if compile_prog "" "-lbz2" ; then
2607         bzip2="yes"
2608     else
2609         if test "$bzip2" = "yes"; then
2610             feature_not_found "libbzip2" "Install libbzip2 devel"
2611         fi
2612         bzip2="no"
2613     fi
2614 fi
2615
2616 ##########################################
2617 # lzfse check
2618
2619 if test "$lzfse" != "no" ; then
2620     cat > $TMPC << EOF
2621 #include <lzfse.h>
2622 int main(void) { lzfse_decode_scratch_size(); return 0; }
2623 EOF
2624     if compile_prog "" "-llzfse" ; then
2625         lzfse="yes"
2626     else
2627         if test "$lzfse" = "yes"; then
2628             feature_not_found "lzfse" "Install lzfse devel"
2629         fi
2630         lzfse="no"
2631     fi
2632 fi
2633
2634 ##########################################
2635 # zstd check
2636
2637 if test "$zstd" != "no" ; then
2638     libzstd_minver="1.4.0"
2639     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2640         zstd_cflags="$($pkg_config --cflags libzstd)"
2641         zstd_libs="$($pkg_config --libs libzstd)"
2642         zstd="yes"
2643     else
2644         if test "$zstd" = "yes" ; then
2645             feature_not_found "libzstd" "Install libzstd devel"
2646         fi
2647         zstd="no"
2648     fi
2649 fi
2650
2651 ##########################################
2652 # libseccomp check
2653
2654 if test "$seccomp" != "no" ; then
2655     libseccomp_minver="2.3.0"
2656     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2657         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2658         seccomp_libs="$($pkg_config --libs libseccomp)"
2659         seccomp="yes"
2660     else
2661         if test "$seccomp" = "yes" ; then
2662             feature_not_found "libseccomp" \
2663                  "Install libseccomp devel >= $libseccomp_minver"
2664         fi
2665         seccomp="no"
2666     fi
2667 fi
2668 ##########################################
2669 # xen probe
2670
2671 if test "$xen" != "no" ; then
2672   # Check whether Xen library path is specified via --extra-ldflags to avoid
2673   # overriding this setting with pkg-config output. If not, try pkg-config
2674   # to obtain all needed flags.
2675
2676   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2677      $pkg_config --exists xencontrol ; then
2678     xen_ctrl_version="$(printf '%d%02d%02d' \
2679       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2680     xen=yes
2681     xen_pc="xencontrol xenstore xenguest xenforeignmemory xengnttab"
2682     xen_pc="$xen_pc xenevtchn xendevicemodel"
2683     if $pkg_config --exists xentoolcore; then
2684       xen_pc="$xen_pc xentoolcore"
2685     fi
2686     xen_cflags="$($pkg_config --cflags $xen_pc)"
2687     xen_libs="$($pkg_config --libs $xen_pc)"
2688   else
2689
2690     xen_libs="-lxenstore -lxenctrl -lxenguest"
2691     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2692
2693     # First we test whether Xen headers and libraries are available.
2694     # If no, we are done and there is no Xen support.
2695     # If yes, more tests are run to detect the Xen version.
2696
2697     # Xen (any)
2698     cat > $TMPC <<EOF
2699 #include <xenctrl.h>
2700 int main(void) {
2701   return 0;
2702 }
2703 EOF
2704     if ! compile_prog "" "$xen_libs" ; then
2705       # Xen not found
2706       if test "$xen" = "yes" ; then
2707         feature_not_found "xen" "Install xen devel"
2708       fi
2709       xen=no
2710
2711     # Xen unstable
2712     elif
2713         cat > $TMPC <<EOF &&
2714 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2715 #define __XEN_TOOLS__
2716 #include <xendevicemodel.h>
2717 #include <xenforeignmemory.h>
2718 int main(void) {
2719   xendevicemodel_handle *xd;
2720   xenforeignmemory_handle *xfmem;
2721
2722   xd = xendevicemodel_open(0, 0);
2723   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2724
2725   xfmem = xenforeignmemory_open(0, 0);
2726   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2727
2728   return 0;
2729 }
2730 EOF
2731         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2732       then
2733       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2734       xen_ctrl_version=41100
2735       xen=yes
2736     elif
2737         cat > $TMPC <<EOF &&
2738 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2739 #include <xenforeignmemory.h>
2740 #include <xentoolcore.h>
2741 int main(void) {
2742   xenforeignmemory_handle *xfmem;
2743
2744   xfmem = xenforeignmemory_open(0, 0);
2745   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2746   xentoolcore_restrict_all(0);
2747
2748   return 0;
2749 }
2750 EOF
2751         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2752       then
2753       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2754       xen_ctrl_version=41000
2755       xen=yes
2756     elif
2757         cat > $TMPC <<EOF &&
2758 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2759 #define __XEN_TOOLS__
2760 #include <xendevicemodel.h>
2761 int main(void) {
2762   xendevicemodel_handle *xd;
2763
2764   xd = xendevicemodel_open(0, 0);
2765   xendevicemodel_close(xd);
2766
2767   return 0;
2768 }
2769 EOF
2770         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2771       then
2772       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2773       xen_ctrl_version=40900
2774       xen=yes
2775     elif
2776         cat > $TMPC <<EOF &&
2777 /*
2778  * If we have stable libs the we don't want the libxc compat
2779  * layers, regardless of what CFLAGS we may have been given.
2780  *
2781  * Also, check if xengnttab_grant_copy_segment_t is defined and
2782  * grant copy operation is implemented.
2783  */
2784 #undef XC_WANT_COMPAT_EVTCHN_API
2785 #undef XC_WANT_COMPAT_GNTTAB_API
2786 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2787 #include <xenctrl.h>
2788 #include <xenstore.h>
2789 #include <xenevtchn.h>
2790 #include <xengnttab.h>
2791 #include <xenforeignmemory.h>
2792 #include <stdint.h>
2793 #include <xen/hvm/hvm_info_table.h>
2794 #if !defined(HVM_MAX_VCPUS)
2795 # error HVM_MAX_VCPUS not defined
2796 #endif
2797 int main(void) {
2798   xc_interface *xc = NULL;
2799   xenforeignmemory_handle *xfmem;
2800   xenevtchn_handle *xe;
2801   xengnttab_handle *xg;
2802   xengnttab_grant_copy_segment_t* seg = NULL;
2803
2804   xs_daemon_open();
2805
2806   xc = xc_interface_open(0, 0, 0);
2807   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2808   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2809   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2810   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2811
2812   xfmem = xenforeignmemory_open(0, 0);
2813   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2814
2815   xe = xenevtchn_open(0, 0);
2816   xenevtchn_fd(xe);
2817
2818   xg = xengnttab_open(0, 0);
2819   xengnttab_grant_copy(xg, 0, seg);
2820
2821   return 0;
2822 }
2823 EOF
2824         compile_prog "" "$xen_libs $xen_stable_libs"
2825       then
2826       xen_ctrl_version=40800
2827       xen=yes
2828     elif
2829         cat > $TMPC <<EOF &&
2830 /*
2831  * If we have stable libs the we don't want the libxc compat
2832  * layers, regardless of what CFLAGS we may have been given.
2833  */
2834 #undef XC_WANT_COMPAT_EVTCHN_API
2835 #undef XC_WANT_COMPAT_GNTTAB_API
2836 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2837 #include <xenctrl.h>
2838 #include <xenstore.h>
2839 #include <xenevtchn.h>
2840 #include <xengnttab.h>
2841 #include <xenforeignmemory.h>
2842 #include <stdint.h>
2843 #include <xen/hvm/hvm_info_table.h>
2844 #if !defined(HVM_MAX_VCPUS)
2845 # error HVM_MAX_VCPUS not defined
2846 #endif
2847 int main(void) {
2848   xc_interface *xc = NULL;
2849   xenforeignmemory_handle *xfmem;
2850   xenevtchn_handle *xe;
2851   xengnttab_handle *xg;
2852
2853   xs_daemon_open();
2854
2855   xc = xc_interface_open(0, 0, 0);
2856   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2857   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2858   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2859   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2860
2861   xfmem = xenforeignmemory_open(0, 0);
2862   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2863
2864   xe = xenevtchn_open(0, 0);
2865   xenevtchn_fd(xe);
2866
2867   xg = xengnttab_open(0, 0);
2868   xengnttab_map_grant_ref(xg, 0, 0, 0);
2869
2870   return 0;
2871 }
2872 EOF
2873         compile_prog "" "$xen_libs $xen_stable_libs"
2874       then
2875       xen_ctrl_version=40701
2876       xen=yes
2877
2878     # Xen 4.6
2879     elif
2880         cat > $TMPC <<EOF &&
2881 #include <xenctrl.h>
2882 #include <xenstore.h>
2883 #include <stdint.h>
2884 #include <xen/hvm/hvm_info_table.h>
2885 #if !defined(HVM_MAX_VCPUS)
2886 # error HVM_MAX_VCPUS not defined
2887 #endif
2888 int main(void) {
2889   xc_interface *xc;
2890   xs_daemon_open();
2891   xc = xc_interface_open(0, 0, 0);
2892   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2893   xc_gnttab_open(NULL, 0);
2894   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2895   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2896   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2897   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2898   return 0;
2899 }
2900 EOF
2901         compile_prog "" "$xen_libs"
2902       then
2903       xen_ctrl_version=40600
2904       xen=yes
2905
2906     # Xen 4.5
2907     elif
2908         cat > $TMPC <<EOF &&
2909 #include <xenctrl.h>
2910 #include <xenstore.h>
2911 #include <stdint.h>
2912 #include <xen/hvm/hvm_info_table.h>
2913 #if !defined(HVM_MAX_VCPUS)
2914 # error HVM_MAX_VCPUS not defined
2915 #endif
2916 int main(void) {
2917   xc_interface *xc;
2918   xs_daemon_open();
2919   xc = xc_interface_open(0, 0, 0);
2920   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2921   xc_gnttab_open(NULL, 0);
2922   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2923   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2924   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2925   return 0;
2926 }
2927 EOF
2928         compile_prog "" "$xen_libs"
2929       then
2930       xen_ctrl_version=40500
2931       xen=yes
2932
2933     elif
2934         cat > $TMPC <<EOF &&
2935 #include <xenctrl.h>
2936 #include <xenstore.h>
2937 #include <stdint.h>
2938 #include <xen/hvm/hvm_info_table.h>
2939 #if !defined(HVM_MAX_VCPUS)
2940 # error HVM_MAX_VCPUS not defined
2941 #endif
2942 int main(void) {
2943   xc_interface *xc;
2944   xs_daemon_open();
2945   xc = xc_interface_open(0, 0, 0);
2946   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2947   xc_gnttab_open(NULL, 0);
2948   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2949   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2950   return 0;
2951 }
2952 EOF
2953         compile_prog "" "$xen_libs"
2954       then
2955       xen_ctrl_version=40200
2956       xen=yes
2957
2958     else
2959       if test "$xen" = "yes" ; then
2960         feature_not_found "xen (unsupported version)" \
2961                           "Install a supported xen (xen 4.2 or newer)"
2962       fi
2963       xen=no
2964     fi
2965
2966     if test "$xen" = yes; then
2967       if test $xen_ctrl_version -ge 40701  ; then
2968         xen_libs="$xen_libs $xen_stable_libs "
2969       fi
2970     fi
2971   fi
2972 fi
2973
2974 if test "$xen_pci_passthrough" != "no"; then
2975   if test "$xen" = "yes" && test "$linux" = "yes"; then
2976     xen_pci_passthrough=yes
2977   else
2978     if test "$xen_pci_passthrough" = "yes"; then
2979       error_exit "User requested feature Xen PCI Passthrough" \
2980           " but this feature requires /sys from Linux"
2981     fi
2982     xen_pci_passthrough=no
2983   fi
2984 fi
2985
2986 ##########################################
2987 # Windows Hypervisor Platform accelerator (WHPX) check
2988 if test "$whpx" = "yes" && test "$ARCH" != "x86_64"; then
2989   error_exit "WHPX requires 64-bit host"
2990 fi
2991 if test "$whpx" != "no" && test "$ARCH" = "x86_64"; then
2992     if check_include "WinHvPlatform.h" && check_include "WinHvEmulation.h"; then
2993         whpx="yes"
2994     else
2995         if test "$whpx" = "yes"; then
2996             feature_not_found "WinHvPlatform" "WinHvEmulation is not installed"
2997         fi
2998         whpx="no"
2999     fi
3000 fi
3001
3002 ##########################################
3003 # gettext probe
3004 if test "$gettext" != "false" ; then
3005   if has xgettext; then
3006     gettext=true
3007   else
3008     if test "$gettext" = "true" ; then
3009       feature_not_found "gettext" "Install xgettext binary"
3010     fi
3011     gettext=false
3012   fi
3013 fi
3014
3015 ##########################################
3016 # Sparse probe
3017 if test "$sparse" != "no" ; then
3018   if has sparse; then
3019     sparse=yes
3020   else
3021     if test "$sparse" = "yes" ; then
3022       feature_not_found "sparse" "Install sparse binary"
3023     fi
3024     sparse=no
3025   fi
3026 fi
3027
3028 ##########################################
3029 # X11 probe
3030 if $pkg_config --exists "x11"; then
3031     have_x11=yes
3032     x11_cflags=$($pkg_config --cflags x11)
3033     x11_libs=$($pkg_config --libs x11)
3034 fi
3035
3036 ##########################################
3037 # GTK probe
3038
3039 if test "$gtk" != "no"; then
3040     gtkpackage="gtk+-3.0"
3041     gtkx11package="gtk+-x11-3.0"
3042     gtkversion="3.22.0"
3043     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
3044         gtk_cflags=$($pkg_config --cflags $gtkpackage)
3045         gtk_libs=$($pkg_config --libs $gtkpackage)
3046         gtk_version=$($pkg_config --modversion $gtkpackage)
3047         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
3048             need_x11=yes
3049             gtk_cflags="$gtk_cflags $x11_cflags"
3050             gtk_libs="$gtk_libs $x11_libs"
3051         fi
3052         gtk="yes"
3053     elif test "$gtk" = "yes"; then
3054         feature_not_found "gtk" "Install gtk3-devel"
3055     else
3056         gtk="no"
3057     fi
3058 fi
3059
3060
3061 ##########################################
3062 # GNUTLS probe
3063
3064 if test "$gnutls" != "no"; then
3065     pass="no"
3066     if $pkg_config --exists "gnutls >= 3.1.18"; then
3067         gnutls_cflags=$($pkg_config --cflags gnutls)
3068         gnutls_libs=$($pkg_config --libs gnutls)
3069         # Packaging for the static libraries is not always correct.
3070         # At least ubuntu 18.04 ships only shared libraries.
3071         write_c_skeleton
3072         if compile_prog "" "$gnutls_libs" ; then
3073             pass="yes"
3074         fi
3075     fi
3076     if test "$pass" = "no" && test "$gnutls" = "yes"; then
3077         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
3078     else
3079         gnutls="$pass"
3080     fi
3081 fi
3082
3083
3084 # If user didn't give a --disable/enable-gcrypt flag,
3085 # then mark as disabled if user requested nettle
3086 # explicitly
3087 if test -z "$gcrypt"
3088 then
3089     if test "$nettle" = "yes"
3090     then
3091         gcrypt="no"
3092     fi
3093 fi
3094
3095 # If user didn't give a --disable/enable-nettle flag,
3096 # then mark as disabled if user requested gcrypt
3097 # explicitly
3098 if test -z "$nettle"
3099 then
3100     if test "$gcrypt" = "yes"
3101     then
3102         nettle="no"
3103     fi
3104 fi
3105
3106 has_libgcrypt() {
3107     if ! has "libgcrypt-config"
3108     then
3109         return 1
3110     fi
3111
3112     if test -n "$cross_prefix"
3113     then
3114         host=$(libgcrypt-config --host)
3115         if test "$host-" != $cross_prefix
3116         then
3117             return 1
3118         fi
3119     fi
3120
3121     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
3122     min=`libgcrypt-config --version | awk -F . '{print $2}'`
3123
3124     if test $maj != 1 || test $min -lt 5
3125     then
3126        return 1
3127     fi
3128
3129     return 0
3130 }
3131
3132
3133 if test "$nettle" != "no"; then
3134     pass="no"
3135     if $pkg_config --exists "nettle >= 2.7.1"; then
3136         nettle_cflags=$($pkg_config --cflags nettle)
3137         nettle_libs=$($pkg_config --libs nettle)
3138         nettle_version=$($pkg_config --modversion nettle)
3139         # Link test to make sure the given libraries work (e.g for static).
3140         write_c_skeleton
3141         if compile_prog "" "$nettle_libs" ; then
3142             if test -z "$gcrypt"; then
3143                gcrypt="no"
3144             fi
3145             pass="yes"
3146         fi
3147     fi
3148     if test "$pass" = "yes"
3149     then
3150         cat > $TMPC << EOF
3151 #include <nettle/xts.h>
3152 int main(void) {
3153   return 0;
3154 }
3155 EOF
3156         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
3157             nettle_xts=yes
3158             qemu_private_xts=no
3159         fi
3160     fi
3161     if test "$pass" = "no" && test "$nettle" = "yes"; then
3162         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
3163     else
3164         nettle="$pass"
3165     fi
3166 fi
3167
3168 if test "$gcrypt" != "no"; then
3169     pass="no"
3170     if has_libgcrypt; then
3171         gcrypt_cflags=$(libgcrypt-config --cflags)
3172         gcrypt_libs=$(libgcrypt-config --libs)
3173         # Debian has removed -lgpg-error from libgcrypt-config
3174         # as it "spreads unnecessary dependencies" which in
3175         # turn breaks static builds...
3176         if test "$static" = "yes"
3177         then
3178             gcrypt_libs="$gcrypt_libs -lgpg-error"
3179         fi
3180
3181         # Link test to make sure the given libraries work (e.g for static).
3182         write_c_skeleton
3183         if compile_prog "" "$gcrypt_libs" ; then
3184             pass="yes"
3185         fi
3186     fi
3187     if test "$pass" = "yes"; then
3188         gcrypt="yes"
3189         cat > $TMPC << EOF
3190 #include <gcrypt.h>
3191 int main(void) {
3192   gcry_mac_hd_t handle;
3193   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3194                 GCRY_MAC_FLAG_SECURE, NULL);
3195   return 0;
3196 }
3197 EOF
3198         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3199             gcrypt_hmac=yes
3200         fi
3201         cat > $TMPC << EOF
3202 #include <gcrypt.h>
3203 int main(void) {
3204   gcry_cipher_hd_t handle;
3205   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3206   return 0;
3207 }
3208 EOF
3209         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3210             gcrypt_xts=yes
3211             qemu_private_xts=no
3212         fi
3213     elif test "$gcrypt" = "yes"; then
3214         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3215     else
3216         gcrypt="no"
3217     fi
3218 fi
3219
3220
3221 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3222 then
3223     error_exit "Only one of gcrypt & nettle can be enabled"
3224 fi
3225
3226 ##########################################
3227 # libtasn1 - only for the TLS creds/session test suite
3228
3229 tasn1=yes
3230 tasn1_cflags=""
3231 tasn1_libs=""
3232 if $pkg_config --exists "libtasn1"; then
3233     tasn1_cflags=$($pkg_config --cflags libtasn1)
3234     tasn1_libs=$($pkg_config --libs libtasn1)
3235 else
3236     tasn1=no
3237 fi
3238
3239
3240 ##########################################
3241 # PAM probe
3242
3243 if test "$auth_pam" != "no"; then
3244     cat > $TMPC <<EOF
3245 #include <security/pam_appl.h>
3246 #include <stdio.h>
3247 int main(void) {
3248    const char *service_name = "qemu";
3249    const char *user = "frank";
3250    const struct pam_conv pam_conv = { 0 };
3251    pam_handle_t *pamh = NULL;
3252    pam_start(service_name, user, &pam_conv, &pamh);
3253    return 0;
3254 }
3255 EOF
3256     if compile_prog "" "-lpam" ; then
3257         auth_pam=yes
3258     else
3259         if test "$auth_pam" = "yes"; then
3260             feature_not_found "PAM" "Install PAM development package"
3261         else
3262             auth_pam=no
3263         fi
3264     fi
3265 fi
3266
3267 ##########################################
3268 # getifaddrs (for tests/test-io-channel-socket )
3269
3270 have_ifaddrs_h=yes
3271 if ! check_include "ifaddrs.h" ; then
3272   have_ifaddrs_h=no
3273 fi
3274
3275 #########################################
3276 # libdrm check
3277 have_drm_h=no
3278 if check_include "libdrm/drm.h" ; then
3279     have_drm_h=yes
3280 fi
3281
3282 #########################################
3283 # sys/signal.h check
3284 have_sys_signal_h=no
3285 if check_include "sys/signal.h" ; then
3286   have_sys_signal_h=yes
3287 fi
3288
3289 ##########################################
3290 # VTE probe
3291
3292 if test "$vte" != "no"; then
3293     vteminversion="0.32.0"
3294     if $pkg_config --exists "vte-2.91"; then
3295       vtepackage="vte-2.91"
3296     else
3297       vtepackage="vte-2.90"
3298     fi
3299     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3300         vte_cflags=$($pkg_config --cflags $vtepackage)
3301         vte_libs=$($pkg_config --libs $vtepackage)
3302         vteversion=$($pkg_config --modversion $vtepackage)
3303         vte="yes"
3304     elif test "$vte" = "yes"; then
3305         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3306     else
3307         vte="no"
3308     fi
3309 fi
3310
3311 ##########################################
3312 # RDMA needs OpenFabrics libraries
3313 if test "$rdma" != "no" ; then
3314   cat > $TMPC <<EOF
3315 #include <rdma/rdma_cma.h>
3316 int main(void) { return 0; }
3317 EOF
3318   rdma_libs="-lrdmacm -libverbs -libumad"
3319   if compile_prog "" "$rdma_libs" ; then
3320     rdma="yes"
3321   else
3322     if test "$rdma" = "yes" ; then
3323         error_exit \
3324             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3325             " Your options:" \
3326             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3327             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3328             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3329     fi
3330     rdma="no"
3331   fi
3332 fi
3333
3334 ##########################################
3335 # PVRDMA detection
3336
3337 cat > $TMPC <<EOF &&
3338 #include <sys/mman.h>
3339
3340 int
3341 main(void)
3342 {
3343     char buf = 0;
3344     void *addr = &buf;
3345     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3346
3347     return 0;
3348 }
3349 EOF
3350
3351 if test "$rdma" = "yes" ; then
3352     case "$pvrdma" in
3353     "")
3354         if compile_prog "" ""; then
3355             pvrdma="yes"
3356         else
3357             pvrdma="no"
3358         fi
3359         ;;
3360     "yes")
3361         if ! compile_prog "" ""; then
3362             error_exit "PVRDMA is not supported since mremap is not implemented"
3363         fi
3364         pvrdma="yes"
3365         ;;
3366     "no")
3367         pvrdma="no"
3368         ;;
3369     esac
3370 else
3371     if test "$pvrdma" = "yes" ; then
3372         error_exit "PVRDMA requires rdma suppport"
3373     fi
3374     pvrdma="no"
3375 fi
3376
3377 # Let's see if enhanced reg_mr is supported
3378 if test "$pvrdma" = "yes" ; then
3379
3380 cat > $TMPC <<EOF &&
3381 #include <infiniband/verbs.h>
3382
3383 int
3384 main(void)
3385 {
3386     struct ibv_mr *mr;
3387     struct ibv_pd *pd = NULL;
3388     size_t length = 10;
3389     uint64_t iova = 0;
3390     int access = 0;
3391     void *addr = NULL;
3392
3393     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3394
3395     ibv_dereg_mr(mr);
3396
3397     return 0;
3398 }
3399 EOF
3400     if ! compile_prog "" "-libverbs"; then
3401         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3402     fi
3403 fi
3404
3405 ##########################################
3406 # xfsctl() probe, used for file-posix.c
3407 if test "$xfs" != "no" ; then
3408   cat > $TMPC << EOF
3409 #include <stddef.h>  /* NULL */
3410 #include <xfs/xfs.h>
3411 int main(void)
3412 {
3413     xfsctl(NULL, 0, 0, NULL);
3414     return 0;
3415 }
3416 EOF
3417   if compile_prog "" "" ; then
3418     xfs="yes"
3419   else
3420     if test "$xfs" = "yes" ; then
3421       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3422     fi
3423     xfs=no
3424   fi
3425 fi
3426
3427 ##########################################
3428 # vde libraries probe
3429 if test "$vde" != "no" ; then
3430   vde_libs="-lvdeplug"
3431   cat > $TMPC << EOF
3432 #include <libvdeplug.h>
3433 int main(void)
3434 {
3435     struct vde_open_args a = {0, 0, 0};
3436     char s[] = "";
3437     vde_open(s, s, &a);
3438     return 0;
3439 }
3440 EOF
3441   if compile_prog "" "$vde_libs" ; then
3442     vde=yes
3443   else
3444     if test "$vde" = "yes" ; then
3445       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3446     fi
3447     vde=no
3448   fi
3449 fi
3450
3451 ##########################################
3452 # netmap support probe
3453 # Apart from looking for netmap headers, we make sure that the host API version
3454 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3455 # a minor/major version number. Minor new features will be marked with values up
3456 # to 15, and if something happens that requires a change to the backend we will
3457 # move above 15, submit the backend fixes and modify this two bounds.
3458 if test "$netmap" != "no" ; then
3459   cat > $TMPC << EOF
3460 #include <inttypes.h>
3461 #include <net/if.h>
3462 #include <net/netmap.h>
3463 #include <net/netmap_user.h>
3464 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3465 #error
3466 #endif
3467 int main(void) { return 0; }
3468 EOF
3469   if compile_prog "" "" ; then
3470     netmap=yes
3471   else
3472     if test "$netmap" = "yes" ; then
3473       feature_not_found "netmap"
3474     fi
3475     netmap=no
3476   fi
3477 fi
3478
3479 ##########################################
3480 # libcap-ng library probe
3481 if test "$cap_ng" != "no" ; then
3482   cap_libs="-lcap-ng"
3483   cat > $TMPC << EOF
3484 #include <cap-ng.h>
3485 int main(void)
3486 {
3487     capng_capability_to_name(CAPNG_EFFECTIVE);
3488     return 0;
3489 }
3490 EOF
3491   if compile_prog "" "$cap_libs" ; then
3492     cap_ng=yes
3493   else
3494     if test "$cap_ng" = "yes" ; then
3495       feature_not_found "cap_ng" "Install libcap-ng devel"
3496     fi
3497     cap_ng=no
3498   fi
3499 fi
3500
3501 ##########################################
3502 # Sound support libraries probe
3503
3504 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3505 for drv in $audio_drv_list; do
3506     case $drv in
3507     alsa | try-alsa)
3508     if $pkg_config alsa --exists; then
3509         alsa_libs=$($pkg_config alsa --libs)
3510         alsa_cflags=$($pkg_config alsa --cflags)
3511         alsa=yes
3512         if test "$drv" = "try-alsa"; then
3513             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3514         fi
3515     else
3516         if test "$drv" = "try-alsa"; then
3517             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3518         else
3519             error_exit "$drv check failed" \
3520                 "Make sure to have the $drv libs and headers installed."
3521         fi
3522     fi
3523     ;;
3524
3525     pa | try-pa)
3526     if $pkg_config libpulse --exists; then
3527         libpulse=yes
3528         pulse_libs=$($pkg_config libpulse --libs)
3529         pulse_cflags=$($pkg_config libpulse --cflags)
3530         if test "$drv" = "try-pa"; then
3531             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3532         fi
3533     else
3534         if test "$drv" = "try-pa"; then
3535             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3536         else
3537             error_exit "$drv check failed" \
3538                 "Make sure to have the $drv libs and headers installed."
3539         fi
3540     fi
3541     ;;
3542
3543     sdl)
3544     if test "$sdl" = "no"; then
3545         error_exit "sdl not found or disabled, can not use sdl audio driver"
3546     fi
3547     ;;
3548
3549     try-sdl)
3550     if test "$sdl" = "no"; then
3551         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3552     else
3553         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3554     fi
3555     ;;
3556
3557     coreaudio)
3558       coreaudio_libs="-framework CoreAudio"
3559     ;;
3560
3561     dsound)
3562       dsound_libs="-lole32 -ldxguid"
3563       audio_win_int="yes"
3564     ;;
3565
3566     oss)
3567       oss_libs="$oss_lib"
3568     ;;
3569
3570     jack | try-jack)
3571     if $pkg_config jack --exists; then
3572         libjack=yes
3573         jack_libs=$($pkg_config jack --libs)
3574         if test "$drv" = "try-jack"; then
3575             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3576         fi
3577     else
3578         if test "$drv" = "try-jack"; then
3579             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3580         else
3581             error_exit "$drv check failed" \
3582                 "Make sure to have the $drv libs and headers installed."
3583         fi
3584     fi
3585     ;;
3586
3587     *)
3588     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3589         error_exit "Unknown driver '$drv' selected" \
3590             "Possible drivers are: $audio_possible_drivers"
3591     }
3592     ;;
3593     esac
3594 done
3595
3596 ##########################################
3597 # BrlAPI probe
3598
3599 if test "$brlapi" != "no" ; then
3600   brlapi_libs="-lbrlapi"
3601   cat > $TMPC << EOF
3602 #include <brlapi.h>
3603 #include <stddef.h>
3604 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3605 EOF
3606   if compile_prog "" "$brlapi_libs" ; then
3607     brlapi=yes
3608   else
3609     if test "$brlapi" = "yes" ; then
3610       feature_not_found "brlapi" "Install brlapi devel"
3611     fi
3612     brlapi=no
3613   fi
3614 fi
3615
3616 ##########################################
3617 # iconv probe
3618 if test "$iconv" != "no" ; then
3619   cat > $TMPC << EOF
3620 #include <iconv.h>
3621 int main(void) {
3622   iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
3623   return conv != (iconv_t) -1;
3624 }
3625 EOF
3626   iconv_prefix_list="/usr/local:/usr"
3627   iconv_lib_list=":-liconv"
3628   IFS=:
3629   for iconv_prefix in $iconv_prefix_list; do
3630     IFS=:
3631     iconv_cflags="-I$iconv_prefix/include"
3632     iconv_ldflags="-L$iconv_prefix/lib"
3633     for iconv_link in $iconv_lib_list; do
3634       unset IFS
3635       iconv_lib="$iconv_ldflags $iconv_link"
3636       echo "looking at iconv in '$iconv_cflags' '$iconv_lib'" >> config.log
3637       if compile_prog "$iconv_cflags" "$iconv_lib" ; then
3638         iconv_found=yes
3639         break
3640       fi
3641     done
3642     if test "$iconv_found" = yes ; then
3643       break
3644     fi
3645   done
3646   if test "$iconv_found" = "yes" ; then
3647     iconv=yes
3648   else
3649     if test "$iconv" = "yes" ; then
3650       feature_not_found "iconv" "Install iconv devel"
3651     fi
3652     iconv=no
3653   fi
3654 fi
3655
3656 ##########################################
3657 # curses probe
3658 if test "$iconv" = "no" ; then
3659   # curses will need iconv
3660   curses=no
3661 fi
3662 if test "$curses" != "no" ; then
3663   if test "$mingw32" = "yes" ; then
3664     curses_inc_list="$($pkg_config --cflags ncurses 2>/dev/null):"
3665     curses_lib_list="$($pkg_config --libs ncurses 2>/dev/null):-lpdcurses"
3666   else
3667     curses_inc_list="$($pkg_config --cflags ncursesw 2>/dev/null):-I/usr/include/ncursesw:"
3668     curses_lib_list="$($pkg_config --libs ncursesw 2>/dev/null):-lncursesw:-lcursesw"
3669   fi
3670   curses_found=no
3671   cat > $TMPC << EOF
3672 #include <locale.h>
3673 #include <curses.h>
3674 #include <wchar.h>
3675 #include <langinfo.h>
3676 int main(void) {
3677   const char *codeset;
3678   wchar_t wch = L'w';
3679   setlocale(LC_ALL, "");
3680   resize_term(0, 0);
3681   addwstr(L"wide chars\n");
3682   addnwstr(&wch, 1);
3683   add_wch(WACS_DEGREE);
3684   codeset = nl_langinfo(CODESET);
3685   return codeset != 0;
3686 }
3687 EOF
3688   IFS=:
3689   for curses_inc in $curses_inc_list; do
3690     # Make sure we get the wide character prototypes
3691     curses_inc="-DNCURSES_WIDECHAR $curses_inc"
3692     IFS=:
3693     for curses_lib in $curses_lib_list; do
3694       unset IFS
3695       if compile_prog "$curses_inc" "$curses_lib" ; then
3696         curses_found=yes
3697         break
3698       fi
3699     done
3700     if test "$curses_found" = yes ; then
3701       break
3702     fi
3703   done
3704   unset IFS
3705   if test "$curses_found" = "yes" ; then
3706     curses=yes
3707   else
3708     if test "$curses" = "yes" ; then
3709       feature_not_found "curses" "Install ncurses devel"
3710     fi
3711     curses=no
3712   fi
3713 fi
3714
3715 ##########################################
3716 # curl probe
3717 if test "$curl" != "no" ; then
3718   if $pkg_config libcurl --exists; then
3719     curlconfig="$pkg_config libcurl"
3720   else
3721     curlconfig=curl-config
3722   fi
3723   cat > $TMPC << EOF
3724 #include <curl/curl.h>
3725 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3726 EOF
3727   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3728   curl_libs=$($curlconfig --libs 2>/dev/null)
3729   if compile_prog "$curl_cflags" "$curl_libs" ; then
3730     curl=yes
3731   else
3732     if test "$curl" = "yes" ; then
3733       feature_not_found "curl" "Install libcurl devel"
3734     fi
3735     curl=no
3736   fi
3737 fi # test "$curl"
3738
3739 ##########################################
3740 # glib support probe
3741
3742 glib_req_ver=2.48
3743 glib_modules=gthread-2.0
3744 if test "$modules" = yes; then
3745     glib_modules="$glib_modules gmodule-export-2.0"
3746 fi
3747 if test "$plugins" = yes; then
3748     glib_modules="$glib_modules gmodule-2.0"
3749 fi
3750
3751 for i in $glib_modules; do
3752     if $pkg_config --atleast-version=$glib_req_ver $i; then
3753         glib_cflags=$($pkg_config --cflags $i)
3754         glib_libs=$($pkg_config --libs $i)
3755     else
3756         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3757     fi
3758 done
3759
3760 # This workaround is required due to a bug in pkg-config file for glib as it
3761 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3762
3763 if test "$static" = yes && test "$mingw32" = yes; then
3764     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3765 fi
3766
3767 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3768     gio=yes
3769     gio_cflags=$($pkg_config --cflags gio-2.0)
3770     gio_libs=$($pkg_config --libs gio-2.0)
3771     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3772     if [ ! -x "$gdbus_codegen" ]; then
3773         gdbus_codegen=
3774     fi
3775 else
3776     gio=no
3777 fi
3778
3779 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3780     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3781     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3782 fi
3783
3784 # Sanity check that the current size_t matches the
3785 # size that glib thinks it should be. This catches
3786 # problems on multi-arch where people try to build
3787 # 32-bit QEMU while pointing at 64-bit glib headers
3788 cat > $TMPC <<EOF
3789 #include <glib.h>
3790 #include <unistd.h>
3791
3792 #define QEMU_BUILD_BUG_ON(x) \
3793   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3794
3795 int main(void) {
3796    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3797    return 0;
3798 }
3799 EOF
3800
3801 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3802     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3803                "You probably need to set PKG_CONFIG_LIBDIR"\
3804                "to point to the right pkg-config files for your"\
3805                "build target"
3806 fi
3807
3808 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3809 cat > $TMPC << EOF
3810 #include <glib.h>
3811 int main(void) { return 0; }
3812 EOF
3813 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3814     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3815         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3816         CFLAGS="-Wno-unknown-attributes $CFLAGS"
3817     fi
3818 fi
3819
3820 # Silence clang warnings triggered by glib < 2.57.2
3821 cat > $TMPC << EOF
3822 #include <glib.h>
3823 typedef struct Foo {
3824     int i;
3825 } Foo;
3826 static void foo_free(Foo *f)
3827 {
3828     g_free(f);
3829 }
3830 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3831 int main(void) { return 0; }
3832 EOF
3833 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3834     if cc_has_warning_flag "-Wno-unused-function"; then
3835         glib_cflags="$glib_cflags -Wno-unused-function"
3836         CFLAGS="$CFLAGS -Wno-unused-function"
3837     fi
3838 fi
3839
3840 ##########################################
3841 # SHA command probe for modules
3842 if test "$modules" = yes; then
3843     shacmd_probe="sha1sum sha1 shasum"
3844     for c in $shacmd_probe; do
3845         if has $c; then
3846             shacmd="$c"
3847             break
3848         fi
3849     done
3850     if test "$shacmd" = ""; then
3851         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3852     fi
3853 fi
3854
3855 ##########################################
3856 # pthread probe
3857 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3858
3859 pthread=no
3860 cat > $TMPC << EOF
3861 #include <pthread.h>
3862 static void *f(void *p) { return NULL; }
3863 int main(void) {
3864   pthread_t thread;
3865   pthread_create(&thread, 0, f, 0);
3866   return 0;
3867 }
3868 EOF
3869 if compile_prog "" "" ; then
3870   pthread=yes
3871 else
3872   for pthread_lib in $PTHREADLIBS_LIST; do
3873     if compile_prog "" "$pthread_lib" ; then
3874       pthread=yes
3875       found=no
3876       for lib_entry in $LIBS; do
3877         if test "$lib_entry" = "$pthread_lib"; then
3878           found=yes
3879           break
3880         fi
3881       done
3882       if test "$found" = "no"; then
3883         LIBS="$pthread_lib $LIBS"
3884       fi
3885       PTHREAD_LIB="$pthread_lib"
3886       break
3887     fi
3888   done
3889 fi
3890
3891 if test "$mingw32" != yes && test "$pthread" = no; then
3892   error_exit "pthread check failed" \
3893       "Make sure to have the pthread libs and headers installed."
3894 fi
3895
3896 # check for pthread_setname_np with thread id
3897 pthread_setname_np_w_tid=no
3898 cat > $TMPC << EOF
3899 #include <pthread.h>
3900
3901 static void *f(void *p) { return NULL; }
3902 int main(void)
3903 {
3904     pthread_t thread;
3905     pthread_create(&thread, 0, f, 0);
3906     pthread_setname_np(thread, "QEMU");
3907     return 0;
3908 }
3909 EOF
3910 if compile_prog "" "$pthread_lib" ; then
3911   pthread_setname_np_w_tid=yes
3912 fi
3913
3914 # check for pthread_setname_np without thread id
3915 pthread_setname_np_wo_tid=no
3916 cat > $TMPC << EOF
3917 #include <pthread.h>
3918
3919 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3920 int main(void)
3921 {
3922     pthread_t thread;
3923     pthread_create(&thread, 0, f, 0);
3924     return 0;
3925 }
3926 EOF
3927 if compile_prog "" "$pthread_lib" ; then
3928   pthread_setname_np_wo_tid=yes
3929 fi
3930
3931 ##########################################
3932 # rbd probe
3933 if test "$rbd" != "no" ; then
3934   cat > $TMPC <<EOF
3935 #include <stdio.h>
3936 #include <rbd/librbd.h>
3937 int main(void) {
3938     rados_t cluster;
3939     rados_create(&cluster, NULL);
3940     return 0;
3941 }
3942 EOF
3943   rbd_libs="-lrbd -lrados"
3944   if compile_prog "" "$rbd_libs" ; then
3945     rbd=yes
3946   else
3947     if test "$rbd" = "yes" ; then
3948       feature_not_found "rados block device" "Install librbd/ceph devel"
3949     fi
3950     rbd=no
3951   fi
3952 fi
3953
3954 ##########################################
3955 # libssh probe
3956 if test "$libssh" != "no" ; then
3957   if $pkg_config --exists libssh; then
3958     libssh_cflags=$($pkg_config libssh --cflags)
3959     libssh_libs=$($pkg_config libssh --libs)
3960     libssh=yes
3961   else
3962     if test "$libssh" = "yes" ; then
3963       error_exit "libssh required for --enable-libssh"
3964     fi
3965     libssh=no
3966   fi
3967 fi
3968
3969 ##########################################
3970 # Check for libssh 0.8
3971 # This is done like this instead of using the LIBSSH_VERSION_* and
3972 # SSH_VERSION_* macros because some distributions in the past shipped
3973 # snapshots of the future 0.8 from Git, and those snapshots did not
3974 # have updated version numbers (still referring to 0.7.0).
3975
3976 if test "$libssh" = "yes"; then
3977   cat > $TMPC <<EOF
3978 #include <libssh/libssh.h>
3979 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3980 EOF
3981   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3982     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3983   fi
3984 fi
3985
3986 ##########################################
3987 # linux-aio probe
3988
3989 if test "$linux_aio" != "no" ; then
3990   cat > $TMPC <<EOF
3991 #include <libaio.h>
3992 #include <sys/eventfd.h>
3993 #include <stddef.h>
3994 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3995 EOF
3996   if compile_prog "" "-laio" ; then
3997     linux_aio=yes
3998   else
3999     if test "$linux_aio" = "yes" ; then
4000       feature_not_found "linux AIO" "Install libaio devel"
4001     fi
4002     linux_aio=no
4003   fi
4004 fi
4005 ##########################################
4006 # linux-io-uring probe
4007
4008 if test "$linux_io_uring" != "no" ; then
4009   if $pkg_config liburing; then
4010     linux_io_uring_cflags=$($pkg_config --cflags liburing)
4011     linux_io_uring_libs=$($pkg_config --libs liburing)
4012     linux_io_uring=yes
4013   else
4014     if test "$linux_io_uring" = "yes" ; then
4015       feature_not_found "linux io_uring" "Install liburing devel"
4016     fi
4017     linux_io_uring=no
4018   fi
4019 fi
4020
4021 ##########################################
4022 # TPM emulation is only on POSIX
4023
4024 if test "$tpm" = ""; then
4025   if test "$mingw32" = "yes"; then
4026     tpm=no
4027   else
4028     tpm=yes
4029   fi
4030 elif test "$tpm" = "yes"; then
4031   if test "$mingw32" = "yes" ; then
4032     error_exit "TPM emulation only available on POSIX systems"
4033   fi
4034 fi
4035
4036 ##########################################
4037 # attr probe
4038
4039 libattr_libs=
4040 if test "$attr" != "no" ; then
4041   cat > $TMPC <<EOF
4042 #include <stdio.h>
4043 #include <sys/types.h>
4044 #ifdef CONFIG_LIBATTR
4045 #include <attr/xattr.h>
4046 #else
4047 #include <sys/xattr.h>
4048 #endif
4049 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
4050 EOF
4051   if compile_prog "" "" ; then
4052     attr=yes
4053   # Older distros have <attr/xattr.h>, and need -lattr:
4054   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
4055     attr=yes
4056     libattr_libs="-lattr"
4057     libattr=yes
4058   else
4059     if test "$attr" = "yes" ; then
4060       feature_not_found "ATTR" "Install libc6 or libattr devel"
4061     fi
4062     attr=no
4063   fi
4064 fi
4065
4066 ##########################################
4067 # iovec probe
4068 cat > $TMPC <<EOF
4069 #include <sys/types.h>
4070 #include <sys/uio.h>
4071 #include <unistd.h>
4072 int main(void) { return sizeof(struct iovec); }
4073 EOF
4074 iovec=no
4075 if compile_prog "" "" ; then
4076   iovec=yes
4077 fi
4078
4079 ##########################################
4080 # preadv probe
4081 cat > $TMPC <<EOF
4082 #include <sys/types.h>
4083 #include <sys/uio.h>
4084 #include <unistd.h>
4085 int main(void) { return preadv(0, 0, 0, 0); }
4086 EOF
4087 preadv=no
4088 if compile_prog "" "" ; then
4089   preadv=yes
4090 fi
4091
4092 ##########################################
4093 # fdt probe
4094 # fdt support is mandatory for at least some target architectures,
4095 # so insist on it if we're building those system emulators.
4096 fdt_required=no
4097 for target in $target_list; do
4098   case $target in
4099     aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu|riscv*-softmmu|rx-softmmu)
4100       fdt_required=yes
4101     ;;
4102   esac
4103 done
4104
4105 if test "$fdt_required" = "yes"; then
4106   if test "$fdt" = "no"; then
4107     error_exit "fdt disabled but some requested targets require it." \
4108       "You can turn off fdt only if you also disable all the system emulation" \
4109       "targets which need it (by specifying a cut down --target-list)."
4110   fi
4111   fdt=yes
4112 elif test "$fdt" != "yes" ; then
4113   fdt=no
4114 fi
4115
4116 # fdt is only required when building softmmu targets
4117 if test -z "$fdt" -a "$softmmu" != "yes" ; then
4118     fdt="no"
4119 fi
4120
4121 if test "$fdt" != "no" ; then
4122   fdt_libs="-lfdt"
4123   # explicitly check for libfdt_env.h as it is missing in some stable installs
4124   # and test for required functions to make sure we are on a version >= 1.4.2
4125   cat > $TMPC << EOF
4126 #include <libfdt.h>
4127 #include <libfdt_env.h>
4128 int main(void) { fdt_check_full(NULL, 0); return 0; }
4129 EOF
4130   if compile_prog "" "$fdt_libs" ; then
4131     # system DTC is good - use it
4132     fdt=system
4133   else
4134       # have GIT checkout, so activate dtc submodule
4135       if test -e "${source_path}/.git" ; then
4136           git_submodules="${git_submodules} dtc"
4137       fi
4138       if test -d "${source_path}/dtc/libfdt" || test -e "${source_path}/.git" ; then
4139           fdt=git
4140           mkdir -p dtc
4141           fdt_cflags="-I${source_path}/dtc/libfdt"
4142           fdt_ldflags="-Ldtc/libfdt"
4143           fdt_libs="$fdt_libs"
4144       elif test "$fdt" = "yes" ; then
4145           # Not a git build & no libfdt found, prompt for system install
4146           error_exit "DTC (libfdt) version >= 1.4.2 not present." \
4147                      "Please install the DTC (libfdt) devel package"
4148       else
4149           # don't have and don't want
4150           fdt_libs=
4151           fdt=no
4152       fi
4153   fi
4154 fi
4155
4156 ##########################################
4157 # opengl probe (for sdl2, gtk, milkymist-tmu2)
4158
4159 gbm="no"
4160 if $pkg_config gbm; then
4161     gbm_cflags="$($pkg_config --cflags gbm)"
4162     gbm_libs="$($pkg_config --libs gbm)"
4163     gbm="yes"
4164 fi
4165
4166 if test "$opengl" != "no" ; then
4167   opengl_pkgs="epoxy gbm"
4168   if $pkg_config $opengl_pkgs; then
4169     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
4170     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
4171     opengl=yes
4172     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
4173         gtk_gl="yes"
4174     fi
4175   else
4176     if test "$opengl" = "yes" ; then
4177       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
4178     fi
4179     opengl_cflags=""
4180     opengl_libs=""
4181     opengl=no
4182   fi
4183 fi
4184
4185 if test "$opengl" = "yes"; then
4186   cat > $TMPC << EOF
4187 #include <epoxy/egl.h>
4188 #ifndef EGL_MESA_image_dma_buf_export
4189 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
4190 #endif
4191 int main(void) { return 0; }
4192 EOF
4193   if compile_prog "" "" ; then
4194     opengl_dmabuf=yes
4195   fi
4196 fi
4197
4198 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
4199   for target in $target_list; do
4200     case $target in
4201       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
4202         need_x11=yes
4203       ;;
4204     esac
4205   done
4206 fi
4207
4208 ##########################################
4209 # libxml2 probe
4210 if test "$libxml2" != "no" ; then
4211     if $pkg_config --exists libxml-2.0; then
4212         libxml2="yes"
4213         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
4214         libxml2_libs=$($pkg_config --libs libxml-2.0)
4215     else
4216         if test "$libxml2" = "yes"; then
4217             feature_not_found "libxml2" "Install libxml2 devel"
4218         fi
4219         libxml2="no"
4220     fi
4221 fi
4222
4223 ##########################################
4224 # glusterfs probe
4225 if test "$glusterfs" != "no" ; then
4226   if $pkg_config --atleast-version=3 glusterfs-api; then
4227     glusterfs="yes"
4228     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
4229     glusterfs_libs=$($pkg_config --libs glusterfs-api)
4230     if $pkg_config --atleast-version=4 glusterfs-api; then
4231       glusterfs_xlator_opt="yes"
4232     fi
4233     if $pkg_config --atleast-version=5 glusterfs-api; then
4234       glusterfs_discard="yes"
4235     fi
4236     if $pkg_config --atleast-version=6 glusterfs-api; then
4237       glusterfs_fallocate="yes"
4238       glusterfs_zerofill="yes"
4239     fi
4240     cat > $TMPC << EOF
4241 #include <glusterfs/api/glfs.h>
4242
4243 int
4244 main(void)
4245 {
4246         /* new glfs_ftruncate() passes two additional args */
4247         return glfs_ftruncate(NULL, 0, NULL, NULL);
4248 }
4249 EOF
4250     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4251       glusterfs_ftruncate_has_stat="yes"
4252     fi
4253     cat > $TMPC << EOF
4254 #include <glusterfs/api/glfs.h>
4255
4256 /* new glfs_io_cbk() passes two additional glfs_stat structs */
4257 static void
4258 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
4259 {}
4260
4261 int
4262 main(void)
4263 {
4264         glfs_io_cbk iocb = &glusterfs_iocb;
4265         iocb(NULL, 0 , NULL, NULL, NULL);
4266         return 0;
4267 }
4268 EOF
4269     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4270       glusterfs_iocb_has_stat="yes"
4271     fi
4272   else
4273     if test "$glusterfs" = "yes" ; then
4274       feature_not_found "GlusterFS backend support" \
4275           "Install glusterfs-api devel >= 3"
4276     fi
4277     glusterfs="no"
4278   fi
4279 fi
4280
4281 # Check for inotify functions when we are building linux-user
4282 # emulator.  This is done because older glibc versions don't
4283 # have syscall stubs for these implemented.  In that case we
4284 # don't provide them even if kernel supports them.
4285 #
4286 inotify=no
4287 cat > $TMPC << EOF
4288 #include <sys/inotify.h>
4289
4290 int
4291 main(void)
4292 {
4293         /* try to start inotify */
4294         return inotify_init();
4295 }
4296 EOF
4297 if compile_prog "" "" ; then
4298   inotify=yes
4299 fi
4300
4301 inotify1=no
4302 cat > $TMPC << EOF
4303 #include <sys/inotify.h>
4304
4305 int
4306 main(void)
4307 {
4308     /* try to start inotify */
4309     return inotify_init1(0);
4310 }
4311 EOF
4312 if compile_prog "" "" ; then
4313   inotify1=yes
4314 fi
4315
4316 # check if pipe2 is there
4317 pipe2=no
4318 cat > $TMPC << EOF
4319 #include <unistd.h>
4320 #include <fcntl.h>
4321
4322 int main(void)
4323 {
4324     int pipefd[2];
4325     return pipe2(pipefd, O_CLOEXEC);
4326 }
4327 EOF
4328 if compile_prog "" "" ; then
4329   pipe2=yes
4330 fi
4331
4332 # check if accept4 is there
4333 accept4=no
4334 cat > $TMPC << EOF
4335 #include <sys/socket.h>
4336 #include <stddef.h>
4337
4338 int main(void)
4339 {
4340     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4341     return 0;
4342 }
4343 EOF
4344 if compile_prog "" "" ; then
4345   accept4=yes
4346 fi
4347
4348 # check if tee/splice is there. vmsplice was added same time.
4349 splice=no
4350 cat > $TMPC << EOF
4351 #include <unistd.h>
4352 #include <fcntl.h>
4353 #include <limits.h>
4354
4355 int main(void)
4356 {
4357     int len, fd = 0;
4358     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4359     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4360     return 0;
4361 }
4362 EOF
4363 if compile_prog "" "" ; then
4364   splice=yes
4365 fi
4366
4367 ##########################################
4368 # libnuma probe
4369
4370 if test "$numa" != "no" ; then
4371   cat > $TMPC << EOF
4372 #include <numa.h>
4373 int main(void) { return numa_available(); }
4374 EOF
4375
4376   if compile_prog "" "-lnuma" ; then
4377     numa=yes
4378     numa_libs="-lnuma"
4379   else
4380     if test "$numa" = "yes" ; then
4381       feature_not_found "numa" "install numactl devel"
4382     fi
4383     numa=no
4384   fi
4385 fi
4386
4387 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4388     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4389     exit 1
4390 fi
4391
4392 # Even if malloc_trim() is available, these non-libc memory allocators
4393 # do not support it.
4394 if test "$tcmalloc" = "yes" || test "$jemalloc" = "yes" ; then
4395     if test "$malloc_trim" = "yes" ; then
4396         echo "Disabling malloc_trim with non-libc memory allocator"
4397     fi
4398     malloc_trim="no"
4399 fi
4400
4401 #######################################
4402 # malloc_trim
4403
4404 if test "$malloc_trim" != "no" ; then
4405     cat > $TMPC << EOF
4406 #include <malloc.h>
4407 int main(void) { malloc_trim(0); return 0; }
4408 EOF
4409     if compile_prog "" "" ; then
4410         malloc_trim="yes"
4411     else
4412         malloc_trim="no"
4413     fi
4414 fi
4415
4416 ##########################################
4417 # tcmalloc probe
4418
4419 if test "$tcmalloc" = "yes" ; then
4420   cat > $TMPC << EOF
4421 #include <stdlib.h>
4422 int main(void) {
4423     void *tmp = malloc(1);
4424     if (tmp != NULL) {
4425         return 0;
4426     }
4427     return 1;
4428 }
4429 EOF
4430
4431   if compile_prog "" "-ltcmalloc" ; then
4432     LIBS="-ltcmalloc $LIBS"
4433   else
4434     feature_not_found "tcmalloc" "install gperftools devel"
4435   fi
4436 fi
4437
4438 ##########################################
4439 # jemalloc probe
4440
4441 if test "$jemalloc" = "yes" ; then
4442   cat > $TMPC << EOF
4443 #include <stdlib.h>
4444 int main(void) {
4445     void *tmp = malloc(1);
4446     if (tmp != NULL) {
4447         return 0;
4448     }
4449     return 1;
4450 }
4451 EOF
4452
4453   if compile_prog "" "-ljemalloc" ; then
4454     LIBS="-ljemalloc $LIBS"
4455   else
4456     feature_not_found "jemalloc" "install jemalloc devel"
4457   fi
4458 fi
4459
4460 ##########################################
4461 # signalfd probe
4462 signalfd="no"
4463 cat > $TMPC << EOF
4464 #include <unistd.h>
4465 #include <sys/syscall.h>
4466 #include <signal.h>
4467 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4468 EOF
4469
4470 if compile_prog "" "" ; then
4471   signalfd=yes
4472 fi
4473
4474 # check if optreset global is declared by <getopt.h>
4475 optreset="no"
4476 cat > $TMPC << EOF
4477 #include <getopt.h>
4478 int main(void) { return optreset; }
4479 EOF
4480
4481 if compile_prog "" "" ; then
4482   optreset=yes
4483 fi
4484
4485 # check if eventfd is supported
4486 eventfd=no
4487 cat > $TMPC << EOF
4488 #include <sys/eventfd.h>
4489
4490 int main(void)
4491 {
4492     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4493 }
4494 EOF
4495 if compile_prog "" "" ; then
4496   eventfd=yes
4497 fi
4498
4499 # check if memfd is supported
4500 memfd=no
4501 cat > $TMPC << EOF
4502 #include <sys/mman.h>
4503
4504 int main(void)
4505 {
4506     return memfd_create("foo", MFD_ALLOW_SEALING);
4507 }
4508 EOF
4509 if compile_prog "" "" ; then
4510   memfd=yes
4511 fi
4512
4513 # check for usbfs
4514 have_usbfs=no
4515 if test "$linux_user" = "yes"; then
4516   cat > $TMPC << EOF
4517 #include <linux/usbdevice_fs.h>
4518
4519 #ifndef USBDEVFS_GET_CAPABILITIES
4520 #error "USBDEVFS_GET_CAPABILITIES undefined"
4521 #endif
4522
4523 #ifndef USBDEVFS_DISCONNECT_CLAIM
4524 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4525 #endif
4526
4527 int main(void)
4528 {
4529     return 0;
4530 }
4531 EOF
4532   if compile_prog "" ""; then
4533     have_usbfs=yes
4534   fi
4535 fi
4536
4537 # check for fallocate
4538 fallocate=no
4539 cat > $TMPC << EOF
4540 #include <fcntl.h>
4541
4542 int main(void)
4543 {
4544     fallocate(0, 0, 0, 0);
4545     return 0;
4546 }
4547 EOF
4548 if compile_prog "" "" ; then
4549   fallocate=yes
4550 fi
4551
4552 # check for fallocate hole punching
4553 fallocate_punch_hole=no
4554 cat > $TMPC << EOF
4555 #include <fcntl.h>
4556 #include <linux/falloc.h>
4557
4558 int main(void)
4559 {
4560     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4561     return 0;
4562 }
4563 EOF
4564 if compile_prog "" "" ; then
4565   fallocate_punch_hole=yes
4566 fi
4567
4568 # check that fallocate supports range zeroing inside the file
4569 fallocate_zero_range=no
4570 cat > $TMPC << EOF
4571 #include <fcntl.h>
4572 #include <linux/falloc.h>
4573
4574 int main(void)
4575 {
4576     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4577     return 0;
4578 }
4579 EOF
4580 if compile_prog "" "" ; then
4581   fallocate_zero_range=yes
4582 fi
4583
4584 # check for posix_fallocate
4585 posix_fallocate=no
4586 cat > $TMPC << EOF
4587 #include <fcntl.h>
4588
4589 int main(void)
4590 {
4591     posix_fallocate(0, 0, 0);
4592     return 0;
4593 }
4594 EOF
4595 if compile_prog "" "" ; then
4596     posix_fallocate=yes
4597 fi
4598
4599 # check for sync_file_range
4600 sync_file_range=no
4601 cat > $TMPC << EOF
4602 #include <fcntl.h>
4603
4604 int main(void)
4605 {
4606     sync_file_range(0, 0, 0, 0);
4607     return 0;
4608 }
4609 EOF
4610 if compile_prog "" "" ; then
4611   sync_file_range=yes
4612 fi
4613
4614 # check for linux/fiemap.h and FS_IOC_FIEMAP
4615 fiemap=no
4616 cat > $TMPC << EOF
4617 #include <sys/ioctl.h>
4618 #include <linux/fs.h>
4619 #include <linux/fiemap.h>
4620
4621 int main(void)
4622 {
4623     ioctl(0, FS_IOC_FIEMAP, 0);
4624     return 0;
4625 }
4626 EOF
4627 if compile_prog "" "" ; then
4628   fiemap=yes
4629 fi
4630
4631 # check for dup3
4632 dup3=no
4633 cat > $TMPC << EOF
4634 #include <unistd.h>
4635
4636 int main(void)
4637 {
4638     dup3(0, 0, 0);
4639     return 0;
4640 }
4641 EOF
4642 if compile_prog "" "" ; then
4643   dup3=yes
4644 fi
4645
4646 # check for ppoll support
4647 ppoll=no
4648 cat > $TMPC << EOF
4649 #include <poll.h>
4650
4651 int main(void)
4652 {
4653     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4654     ppoll(&pfd, 1, 0, 0);
4655     return 0;
4656 }
4657 EOF
4658 if compile_prog "" "" ; then
4659   ppoll=yes
4660 fi
4661
4662 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4663 prctl_pr_set_timerslack=no
4664 cat > $TMPC << EOF
4665 #include <sys/prctl.h>
4666
4667 int main(void)
4668 {
4669     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4670     return 0;
4671 }
4672 EOF
4673 if compile_prog "" "" ; then
4674   prctl_pr_set_timerslack=yes
4675 fi
4676
4677 # check for epoll support
4678 epoll=no
4679 cat > $TMPC << EOF
4680 #include <sys/epoll.h>
4681
4682 int main(void)
4683 {
4684     epoll_create(0);
4685     return 0;
4686 }
4687 EOF
4688 if compile_prog "" "" ; then
4689   epoll=yes
4690 fi
4691
4692 # epoll_create1 is a later addition
4693 # so we must check separately for its presence
4694 epoll_create1=no
4695 cat > $TMPC << EOF
4696 #include <sys/epoll.h>
4697
4698 int main(void)
4699 {
4700     /* Note that we use epoll_create1 as a value, not as
4701      * a function being called. This is necessary so that on
4702      * old SPARC glibc versions where the function was present in
4703      * the library but not declared in the header file we will
4704      * fail the configure check. (Otherwise we will get a compiler
4705      * warning but not an error, and will proceed to fail the
4706      * qemu compile where we compile with -Werror.)
4707      */
4708     return (int)(uintptr_t)&epoll_create1;
4709 }
4710 EOF
4711 if compile_prog "" "" ; then
4712   epoll_create1=yes
4713 fi
4714
4715 # check for sendfile support
4716 sendfile=no
4717 cat > $TMPC << EOF
4718 #include <sys/sendfile.h>
4719
4720 int main(void)
4721 {
4722     return sendfile(0, 0, 0, 0);
4723 }
4724 EOF
4725 if compile_prog "" "" ; then
4726   sendfile=yes
4727 fi
4728
4729 # check for timerfd support (glibc 2.8 and newer)
4730 timerfd=no
4731 cat > $TMPC << EOF
4732 #include <sys/timerfd.h>
4733
4734 int main(void)
4735 {
4736     return(timerfd_create(CLOCK_REALTIME, 0));
4737 }
4738 EOF
4739 if compile_prog "" "" ; then
4740   timerfd=yes
4741 fi
4742
4743 # check for setns and unshare support
4744 setns=no
4745 cat > $TMPC << EOF
4746 #include <sched.h>
4747
4748 int main(void)
4749 {
4750     int ret;
4751     ret = setns(0, 0);
4752     ret = unshare(0);
4753     return ret;
4754 }
4755 EOF
4756 if compile_prog "" "" ; then
4757   setns=yes
4758 fi
4759
4760 # clock_adjtime probe
4761 clock_adjtime=no
4762 cat > $TMPC <<EOF
4763 #include <time.h>
4764
4765 int main(void)
4766 {
4767     return clock_adjtime(0, 0);
4768 }
4769 EOF
4770 clock_adjtime=no
4771 if compile_prog "" "" ; then
4772   clock_adjtime=yes
4773 fi
4774
4775 # syncfs probe
4776 syncfs=no
4777 cat > $TMPC <<EOF
4778 #include <unistd.h>
4779
4780 int main(void)
4781 {
4782     return syncfs(0);
4783 }
4784 EOF
4785 syncfs=no
4786 if compile_prog "" "" ; then
4787   syncfs=yes
4788 fi
4789
4790 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4791 kcov=no
4792 if check_include sys/kcov.h ; then
4793     kcov=yes
4794 fi
4795
4796 # check for btrfs filesystem support (kernel must be 3.9+)
4797 btrfs=no
4798 if check_include linux/btrfs.h ; then
4799     btrfs=yes
4800 fi
4801
4802 # If we're making warnings fatal, apply this to Sphinx runs as well
4803 sphinx_werror=""
4804 if test "$werror" = "yes"; then
4805     sphinx_werror="-W"
4806 fi
4807
4808 # Check we have a new enough version of sphinx-build
4809 has_sphinx_build() {
4810     # This is a bit awkward but works: create a trivial document and
4811     # try to run it with our configuration file (which enforces a
4812     # version requirement). This will fail if either
4813     # sphinx-build doesn't exist at all or if it is too old.
4814     mkdir -p "$TMPDIR1/sphinx"
4815     touch "$TMPDIR1/sphinx/index.rst"
4816     "$sphinx_build" $sphinx_werror -c "$source_path/docs" \
4817                     -b html "$TMPDIR1/sphinx" \
4818                     "$TMPDIR1/sphinx/out"  >> config.log 2>&1
4819 }
4820
4821 # Check if tools are available to build documentation.
4822 if test "$docs" != "no" ; then
4823   if has_sphinx_build; then
4824     sphinx_ok=yes
4825   else
4826     sphinx_ok=no
4827   fi
4828   if test "$sphinx_ok" = "yes"; then
4829     docs=yes
4830   else
4831     if test "$docs" = "yes" ; then
4832       if has $sphinx_build && test "$sphinx_ok" != "yes"; then
4833         echo "Warning: $sphinx_build exists but it is either too old or uses too old a Python version" >&2
4834       fi
4835       feature_not_found "docs" "Install a Python 3 version of python-sphinx"
4836     fi
4837     docs=no
4838   fi
4839 fi
4840
4841 # Search for bswap_32 function
4842 byteswap_h=no
4843 cat > $TMPC << EOF
4844 #include <byteswap.h>
4845 int main(void) { return bswap_32(0); }
4846 EOF
4847 if compile_prog "" "" ; then
4848   byteswap_h=yes
4849 fi
4850
4851 # Search for bswap32 function
4852 bswap_h=no
4853 cat > $TMPC << EOF
4854 #include <sys/endian.h>
4855 #include <sys/types.h>
4856 #include <machine/bswap.h>
4857 int main(void) { return bswap32(0); }
4858 EOF
4859 if compile_prog "" "" ; then
4860   bswap_h=yes
4861 fi
4862
4863 ##########################################
4864 # Do we have libiscsi >= 1.9.0
4865 if test "$libiscsi" != "no" ; then
4866   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4867     libiscsi="yes"
4868     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4869     libiscsi_libs=$($pkg_config --libs libiscsi)
4870   else
4871     if test "$libiscsi" = "yes" ; then
4872       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4873     fi
4874     libiscsi="no"
4875   fi
4876 fi
4877
4878 ##########################################
4879 # Do we need librt
4880 # uClibc provides 2 versions of clock_gettime(), one with realtime
4881 # support and one without. This means that the clock_gettime() don't
4882 # need -lrt. We still need it for timer_create() so we check for this
4883 # function in addition.
4884 cat > $TMPC <<EOF
4885 #include <signal.h>
4886 #include <time.h>
4887 int main(void) {
4888   timer_create(CLOCK_REALTIME, NULL, NULL);
4889   return clock_gettime(CLOCK_REALTIME, NULL);
4890 }
4891 EOF
4892
4893 if compile_prog "" "" ; then
4894   :
4895 # we need pthread for static linking. use previous pthread test result
4896 elif compile_prog "" "$pthread_lib -lrt" ; then
4897   LIBS="$LIBS -lrt"
4898 fi
4899
4900 # Check whether we have openpty() in either libc or libutil
4901 cat > $TMPC << EOF
4902 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4903 int main(void) { return openpty(0, 0, 0, 0, 0); }
4904 EOF
4905
4906 have_openpty="no"
4907 if compile_prog "" "" ; then
4908   have_openpty="yes"
4909 else
4910   if compile_prog "" "-lutil" ; then
4911     have_openpty="yes"
4912   fi
4913 fi
4914
4915 ##########################################
4916 # spice probe
4917 if test "$spice" != "no" ; then
4918   cat > $TMPC << EOF
4919 #include <spice.h>
4920 int main(void) { spice_server_new(); return 0; }
4921 EOF
4922   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4923   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4924   if $pkg_config --atleast-version=0.12.5 spice-server && \
4925      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4926      compile_prog "$spice_cflags" "$spice_libs" ; then
4927     spice="yes"
4928   else
4929     if test "$spice" = "yes" ; then
4930       feature_not_found "spice" \
4931           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4932     fi
4933     spice="no"
4934   fi
4935 fi
4936
4937 # check for smartcard support
4938 if test "$smartcard" != "no"; then
4939     if $pkg_config --atleast-version=2.5.1 libcacard; then
4940         libcacard_cflags=$($pkg_config --cflags libcacard)
4941         libcacard_libs=$($pkg_config --libs libcacard)
4942         smartcard="yes"
4943     else
4944         if test "$smartcard" = "yes"; then
4945             feature_not_found "smartcard" "Install libcacard devel"
4946         fi
4947         smartcard="no"
4948     fi
4949 fi
4950
4951 # check for libusb
4952 if test "$libusb" != "no" ; then
4953     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4954         libusb="yes"
4955         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4956         libusb_libs=$($pkg_config --libs libusb-1.0)
4957     else
4958         if test "$libusb" = "yes"; then
4959             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4960         fi
4961         libusb="no"
4962     fi
4963 fi
4964
4965 # check for usbredirparser for usb network redirection support
4966 if test "$usb_redir" != "no" ; then
4967     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4968         usb_redir="yes"
4969         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4970         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4971     else
4972         if test "$usb_redir" = "yes"; then
4973             feature_not_found "usb-redir" "Install usbredir devel"
4974         fi
4975         usb_redir="no"
4976     fi
4977 fi
4978
4979 ##########################################
4980 # check if we have VSS SDK headers for win
4981
4982 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4983         test "$vss_win32_sdk" != "no" ; then
4984   case "$vss_win32_sdk" in
4985     "")   vss_win32_include="-isystem $source_path" ;;
4986     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4987           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4988           vss_win32_include="-isystem $source_path/.sdk/vss"
4989           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4990           ;;
4991     *)    vss_win32_include="-isystem $vss_win32_sdk"
4992   esac
4993   cat > $TMPC << EOF
4994 #define __MIDL_user_allocate_free_DEFINED__
4995 #include <inc/win2003/vss.h>
4996 int main(void) { return VSS_CTX_BACKUP; }
4997 EOF
4998   if compile_prog "$vss_win32_include" "" ; then
4999     guest_agent_with_vss="yes"
5000     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
5001     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
5002     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
5003   else
5004     if test "$vss_win32_sdk" != "" ; then
5005       echo "ERROR: Please download and install Microsoft VSS SDK:"
5006       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
5007       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
5008       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
5009       echo "ERROR: The headers are extracted in the directory \`inc'."
5010       feature_not_found "VSS support"
5011     fi
5012     guest_agent_with_vss="no"
5013   fi
5014 fi
5015
5016 ##########################################
5017 # lookup Windows platform SDK (if not specified)
5018 # The SDK is needed only to build .tlb (type library) file of guest agent
5019 # VSS provider from the source. It is usually unnecessary because the
5020 # pre-compiled .tlb file is included.
5021
5022 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
5023         test "$guest_agent_with_vss" = "yes" ; then
5024   if test -z "$win_sdk"; then
5025     programfiles="$PROGRAMFILES"
5026     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
5027     if test -n "$programfiles"; then
5028       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
5029     else
5030       feature_not_found "Windows SDK"
5031     fi
5032   elif test "$win_sdk" = "no"; then
5033     win_sdk=""
5034   fi
5035 fi
5036
5037 ##########################################
5038 # check if mingw environment provides a recent ntddscsi.h
5039 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
5040   cat > $TMPC << EOF
5041 #include <windows.h>
5042 #include <ntddscsi.h>
5043 int main(void) {
5044 #if !defined(IOCTL_SCSI_GET_ADDRESS)
5045 #error Missing required ioctl definitions
5046 #endif
5047   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
5048   return addr.Lun;
5049 }
5050 EOF
5051   if compile_prog "" "" ; then
5052     guest_agent_ntddscsi=yes
5053     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
5054   fi
5055 fi
5056
5057 ##########################################
5058 # virgl renderer probe
5059
5060 if test "$virglrenderer" != "no" ; then
5061   cat > $TMPC << EOF
5062 #include <virglrenderer.h>
5063 int main(void) { virgl_renderer_poll(); return 0; }
5064 EOF
5065   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
5066   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
5067   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
5068   if $pkg_config virglrenderer >/dev/null 2>&1 && \
5069      compile_prog "$virgl_cflags" "$virgl_libs" ; then
5070     virglrenderer="yes"
5071   else
5072     if test "$virglrenderer" = "yes" ; then
5073       feature_not_found "virglrenderer"
5074     fi
5075     virglrenderer="no"
5076   fi
5077 fi
5078
5079 ##########################################
5080 # capstone
5081
5082 case "$capstone" in
5083   "" | yes)
5084     if $pkg_config capstone; then
5085       capstone=system
5086     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5087       capstone=git
5088     elif test -e "${source_path}/capstone/Makefile" ; then
5089       capstone=internal
5090     elif test -z "$capstone" ; then
5091       capstone=no
5092     else
5093       feature_not_found "capstone" "Install capstone devel or git submodule"
5094     fi
5095     ;;
5096
5097   system)
5098     if ! $pkg_config capstone; then
5099       feature_not_found "capstone" "Install capstone devel"
5100     fi
5101     ;;
5102 esac
5103
5104 case "$capstone" in
5105   git | internal)
5106     if test "$capstone" = git; then
5107       git_submodules="${git_submodules} capstone"
5108     fi
5109     mkdir -p capstone
5110     if test "$mingw32" = "yes"; then
5111       LIBCAPSTONE=capstone.lib
5112     else
5113       LIBCAPSTONE=libcapstone.a
5114     fi
5115     capstone_libs="-Lcapstone -lcapstone"
5116     capstone_cflags="-I${source_path}/capstone/include"
5117     ;;
5118
5119   system)
5120     capstone_libs="$($pkg_config --libs capstone)"
5121     capstone_cflags="$($pkg_config --cflags capstone)"
5122     ;;
5123
5124   no)
5125     ;;
5126   *)
5127     error_exit "Unknown state for capstone: $capstone"
5128     ;;
5129 esac
5130
5131 ##########################################
5132 # check if we have fdatasync
5133
5134 fdatasync=no
5135 cat > $TMPC << EOF
5136 #include <unistd.h>
5137 int main(void) {
5138 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
5139 return fdatasync(0);
5140 #else
5141 #error Not supported
5142 #endif
5143 }
5144 EOF
5145 if compile_prog "" "" ; then
5146     fdatasync=yes
5147 fi
5148
5149 ##########################################
5150 # check if we have madvise
5151
5152 madvise=no
5153 cat > $TMPC << EOF
5154 #include <sys/types.h>
5155 #include <sys/mman.h>
5156 #include <stddef.h>
5157 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
5158 EOF
5159 if compile_prog "" "" ; then
5160     madvise=yes
5161 fi
5162
5163 ##########################################
5164 # check if we have posix_madvise
5165
5166 posix_madvise=no
5167 cat > $TMPC << EOF
5168 #include <sys/mman.h>
5169 #include <stddef.h>
5170 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
5171 EOF
5172 if compile_prog "" "" ; then
5173     posix_madvise=yes
5174 fi
5175
5176 ##########################################
5177 # check if we have posix_memalign()
5178
5179 posix_memalign=no
5180 cat > $TMPC << EOF
5181 #include <stdlib.h>
5182 int main(void) {
5183     void *p;
5184     return posix_memalign(&p, 8, 8);
5185 }
5186 EOF
5187 if compile_prog "" "" ; then
5188     posix_memalign=yes
5189 fi
5190
5191 ##########################################
5192 # check if we have posix_syslog
5193
5194 posix_syslog=no
5195 cat > $TMPC << EOF
5196 #include <syslog.h>
5197 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
5198 EOF
5199 if compile_prog "" "" ; then
5200     posix_syslog=yes
5201 fi
5202
5203 ##########################################
5204 # check if we have sem_timedwait
5205
5206 sem_timedwait=no
5207 cat > $TMPC << EOF
5208 #include <semaphore.h>
5209 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
5210 EOF
5211 if compile_prog "" "" ; then
5212     sem_timedwait=yes
5213 fi
5214
5215 ##########################################
5216 # check if we have strchrnul
5217
5218 strchrnul=no
5219 cat > $TMPC << EOF
5220 #include <string.h>
5221 int main(void);
5222 // Use a haystack that the compiler shouldn't be able to constant fold
5223 char *haystack = (char*)&main;
5224 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
5225 EOF
5226 if compile_prog "" "" ; then
5227     strchrnul=yes
5228 fi
5229
5230 #########################################
5231 # check if we have st_atim
5232
5233 st_atim=no
5234 cat > $TMPC << EOF
5235 #include <sys/stat.h>
5236 #include <stddef.h>
5237 int main(void) { return offsetof(struct stat, st_atim); }
5238 EOF
5239 if compile_prog "" "" ; then
5240     st_atim=yes
5241 fi
5242
5243 ##########################################
5244 # check if trace backend exists
5245
5246 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
5247 if test "$?" -ne 0 ; then
5248   error_exit "invalid trace backends" \
5249       "Please choose supported trace backends."
5250 fi
5251
5252 ##########################################
5253 # For 'ust' backend, test if ust headers are present
5254 if have_backend "ust"; then
5255   cat > $TMPC << EOF
5256 #include <lttng/tracepoint.h>
5257 int main(void) { return 0; }
5258 EOF
5259   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
5260     if $pkg_config lttng-ust --exists; then
5261       lttng_ust_libs=$($pkg_config --libs lttng-ust)
5262     else
5263       lttng_ust_libs="-llttng-ust -ldl"
5264     fi
5265     if $pkg_config liburcu-bp --exists; then
5266       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
5267     else
5268       urcu_bp_libs="-lurcu-bp"
5269     fi
5270   else
5271     error_exit "Trace backend 'ust' missing lttng-ust header files"
5272   fi
5273 fi
5274
5275 ##########################################
5276 # For 'dtrace' backend, test if 'dtrace' command is present
5277 if have_backend "dtrace"; then
5278   if ! has 'dtrace' ; then
5279     error_exit "dtrace command is not found in PATH $PATH"
5280   fi
5281   trace_backend_stap="no"
5282   if has 'stap' ; then
5283     trace_backend_stap="yes"
5284   fi
5285 fi
5286
5287 ##########################################
5288 # check and set a backend for coroutine
5289
5290 # We prefer ucontext, but it's not always possible. The fallback
5291 # is sigcontext. On Windows the only valid backend is the Windows
5292 # specific one.
5293
5294 ucontext_works=no
5295 if test "$darwin" != "yes"; then
5296   cat > $TMPC << EOF
5297 #include <ucontext.h>
5298 #ifdef __stub_makecontext
5299 #error Ignoring glibc stub makecontext which will always fail
5300 #endif
5301 int main(void) { makecontext(0, 0, 0); return 0; }
5302 EOF
5303   if compile_prog "" "" ; then
5304     ucontext_works=yes
5305   fi
5306 fi
5307
5308 if test "$coroutine" = ""; then
5309   if test "$mingw32" = "yes"; then
5310     coroutine=win32
5311   elif test "$ucontext_works" = "yes"; then
5312     coroutine=ucontext
5313   else
5314     coroutine=sigaltstack
5315   fi
5316 else
5317   case $coroutine in
5318   windows)
5319     if test "$mingw32" != "yes"; then
5320       error_exit "'windows' coroutine backend only valid for Windows"
5321     fi
5322     # Unfortunately the user visible backend name doesn't match the
5323     # coroutine-*.c filename for this case, so we have to adjust it here.
5324     coroutine=win32
5325     ;;
5326   ucontext)
5327     if test "$ucontext_works" != "yes"; then
5328       feature_not_found "ucontext"
5329     fi
5330     ;;
5331   sigaltstack)
5332     if test "$mingw32" = "yes"; then
5333       error_exit "only the 'windows' coroutine backend is valid for Windows"
5334     fi
5335     ;;
5336   *)
5337     error_exit "unknown coroutine backend $coroutine"
5338     ;;
5339   esac
5340 fi
5341
5342 if test "$coroutine_pool" = ""; then
5343   coroutine_pool=yes
5344 fi
5345
5346 if test "$debug_stack_usage" = "yes"; then
5347   if test "$coroutine_pool" = "yes"; then
5348     echo "WARN: disabling coroutine pool for stack usage debugging"
5349     coroutine_pool=no
5350   fi
5351 fi
5352
5353 ##################################################
5354 # SafeStack
5355
5356
5357 if test "$safe_stack" = "yes"; then
5358 cat > $TMPC << EOF
5359 int main(int argc, char *argv[])
5360 {
5361 #if ! __has_feature(safe_stack)
5362 #error SafeStack Disabled
5363 #endif
5364     return 0;
5365 }
5366 EOF
5367   flag="-fsanitize=safe-stack"
5368   # Check that safe-stack is supported and enabled.
5369   if compile_prog "-Werror $flag" "$flag"; then
5370     # Flag needed both at compilation and at linking
5371     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
5372     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
5373   else
5374     error_exit "SafeStack not supported by your compiler"
5375   fi
5376   if test "$coroutine" != "ucontext"; then
5377     error_exit "SafeStack is only supported by the coroutine backend ucontext"
5378   fi
5379 else
5380 cat > $TMPC << EOF
5381 int main(int argc, char *argv[])
5382 {
5383 #if defined(__has_feature)
5384 #if __has_feature(safe_stack)
5385 #error SafeStack Enabled
5386 #endif
5387 #endif
5388     return 0;
5389 }
5390 EOF
5391 if test "$safe_stack" = "no"; then
5392   # Make sure that safe-stack is disabled
5393   if ! compile_prog "-Werror" ""; then
5394     # SafeStack was already enabled, try to explicitly remove the feature
5395     flag="-fno-sanitize=safe-stack"
5396     if ! compile_prog "-Werror $flag" "$flag"; then
5397       error_exit "Configure cannot disable SafeStack"
5398     fi
5399     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
5400     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
5401   fi
5402 else # "$safe_stack" = ""
5403   # Set safe_stack to yes or no based on pre-existing flags
5404   if compile_prog "-Werror" ""; then
5405     safe_stack="no"
5406   else
5407     safe_stack="yes"
5408     if test "$coroutine" != "ucontext"; then
5409       error_exit "SafeStack is only supported by the coroutine backend ucontext"
5410     fi
5411   fi
5412 fi
5413 fi
5414
5415 ##########################################
5416 # check if we have open_by_handle_at
5417
5418 open_by_handle_at=no
5419 cat > $TMPC << EOF
5420 #include <fcntl.h>
5421 #if !defined(AT_EMPTY_PATH)
5422 # error missing definition
5423 #else
5424 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
5425 #endif
5426 EOF
5427 if compile_prog "" "" ; then
5428     open_by_handle_at=yes
5429 fi
5430
5431 ########################################
5432 # check if we have linux/magic.h
5433
5434 linux_magic_h=no
5435 cat > $TMPC << EOF
5436 #include <linux/magic.h>
5437 int main(void) {
5438   return 0;
5439 }
5440 EOF
5441 if compile_prog "" "" ; then
5442     linux_magic_h=yes
5443 fi
5444
5445 ########################################
5446 # check if we have valgrind/valgrind.h
5447
5448 valgrind_h=no
5449 cat > $TMPC << EOF
5450 #include <valgrind/valgrind.h>
5451 int main(void) {
5452   return 0;
5453 }
5454 EOF
5455 if compile_prog "" "" ; then
5456     valgrind_h=yes
5457 fi
5458
5459 ########################################
5460 # check if environ is declared
5461
5462 has_environ=no
5463 cat > $TMPC << EOF
5464 #include <unistd.h>
5465 int main(void) {
5466     environ = 0;
5467     return 0;
5468 }
5469 EOF
5470 if compile_prog "" "" ; then
5471     has_environ=yes
5472 fi
5473
5474 ########################################
5475 # check if cpuid.h is usable.
5476
5477 cat > $TMPC << EOF
5478 #include <cpuid.h>
5479 int main(void) {
5480     unsigned a, b, c, d;
5481     int max = __get_cpuid_max(0, 0);
5482
5483     if (max >= 1) {
5484         __cpuid(1, a, b, c, d);
5485     }
5486
5487     if (max >= 7) {
5488         __cpuid_count(7, 0, a, b, c, d);
5489     }
5490
5491     return 0;
5492 }
5493 EOF
5494 if compile_prog "" "" ; then
5495     cpuid_h=yes
5496 fi
5497
5498 ##########################################
5499 # avx2 optimization requirement check
5500 #
5501 # There is no point enabling this if cpuid.h is not usable,
5502 # since we won't be able to select the new routines.
5503
5504 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5505   cat > $TMPC << EOF
5506 #pragma GCC push_options
5507 #pragma GCC target("avx2")
5508 #include <cpuid.h>
5509 #include <immintrin.h>
5510 static int bar(void *a) {
5511     __m256i x = *(__m256i *)a;
5512     return _mm256_testz_si256(x, x);
5513 }
5514 int main(int argc, char *argv[]) { return bar(argv[0]); }
5515 EOF
5516   if compile_object "" ; then
5517     avx2_opt="yes"
5518   else
5519     avx2_opt="no"
5520   fi
5521 fi
5522
5523 ##########################################
5524 # avx512f optimization requirement check
5525 #
5526 # There is no point enabling this if cpuid.h is not usable,
5527 # since we won't be able to select the new routines.
5528 # by default, it is turned off.
5529 # if user explicitly want to enable it, check environment
5530
5531 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5532   cat > $TMPC << EOF
5533 #pragma GCC push_options
5534 #pragma GCC target("avx512f")
5535 #include <cpuid.h>
5536 #include <immintrin.h>
5537 static int bar(void *a) {
5538     __m512i x = *(__m512i *)a;
5539     return _mm512_test_epi64_mask(x, x);
5540 }
5541 int main(int argc, char *argv[])
5542 {
5543         return bar(argv[0]);
5544 }
5545 EOF
5546   if ! compile_object "" ; then
5547     avx512f_opt="no"
5548   fi
5549 else
5550   avx512f_opt="no"
5551 fi
5552
5553 ########################################
5554 # check if __[u]int128_t is usable.
5555
5556 int128=no
5557 cat > $TMPC << EOF
5558 __int128_t a;
5559 __uint128_t b;
5560 int main (void) {
5561   a = a + b;
5562   b = a * b;
5563   a = a * a;
5564   return 0;
5565 }
5566 EOF
5567 if compile_prog "" "" ; then
5568     int128=yes
5569 fi
5570
5571 #########################################
5572 # See if 128-bit atomic operations are supported.
5573
5574 atomic128=no
5575 if test "$int128" = "yes"; then
5576   cat > $TMPC << EOF
5577 int main(void)
5578 {
5579   unsigned __int128 x = 0, y = 0;
5580   y = __atomic_load_16(&x, 0);
5581   __atomic_store_16(&x, y, 0);
5582   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5583   return 0;
5584 }
5585 EOF
5586   if compile_prog "" "" ; then
5587     atomic128=yes
5588   fi
5589 fi
5590
5591 cmpxchg128=no
5592 if test "$int128" = yes && test "$atomic128" = no; then
5593   cat > $TMPC << EOF
5594 int main(void)
5595 {
5596   unsigned __int128 x = 0, y = 0;
5597   __sync_val_compare_and_swap_16(&x, y, x);
5598   return 0;
5599 }
5600 EOF
5601   if compile_prog "" "" ; then
5602     cmpxchg128=yes
5603   fi
5604 fi
5605
5606 #########################################
5607 # See if 64-bit atomic operations are supported.
5608 # Note that without __atomic builtins, we can only
5609 # assume atomic loads/stores max at pointer size.
5610
5611 cat > $TMPC << EOF
5612 #include <stdint.h>
5613 int main(void)
5614 {
5615   uint64_t x = 0, y = 0;
5616 #ifdef __ATOMIC_RELAXED
5617   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5618   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5619   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5620   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5621   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5622 #else
5623   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5624   __sync_lock_test_and_set(&x, y);
5625   __sync_val_compare_and_swap(&x, y, 0);
5626   __sync_fetch_and_add(&x, y);
5627 #endif
5628   return 0;
5629 }
5630 EOF
5631 if compile_prog "" "" ; then
5632   atomic64=yes
5633 fi
5634
5635 #########################################
5636 # See if --dynamic-list is supported by the linker
5637 ld_dynamic_list="no"
5638 if test "$static" = "no" ; then
5639     cat > $TMPTXT <<EOF
5640 {
5641   foo;
5642 };
5643 EOF
5644
5645     cat > $TMPC <<EOF
5646 #include <stdio.h>
5647 void foo(void);
5648
5649 void foo(void)
5650 {
5651   printf("foo\n");
5652 }
5653
5654 int main(void)
5655 {
5656   foo();
5657   return 0;
5658 }
5659 EOF
5660
5661     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5662         ld_dynamic_list="yes"
5663     fi
5664 fi
5665
5666 #########################################
5667 # See if -exported_symbols_list is supported by the linker
5668
5669 ld_exported_symbols_list="no"
5670 if test "$static" = "no" ; then
5671     cat > $TMPTXT <<EOF
5672   _foo
5673 EOF
5674
5675     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5676         ld_exported_symbols_list="yes"
5677     fi
5678 fi
5679
5680 if  test "$plugins" = "yes" &&
5681     test "$ld_dynamic_list" = "no" &&
5682     test "$ld_exported_symbols_list" = "no" ; then
5683   error_exit \
5684       "Plugin support requires dynamic linking and specifying a set of symbols " \
5685       "that are exported to plugins. Unfortunately your linker doesn't " \
5686       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5687       "for this purpose. You can't build with --static."
5688 fi
5689
5690 ########################################
5691 # See if __attribute__((alias)) is supported.
5692 # This false for Xcode 9, but has been remedied for Xcode 10.
5693 # Unfortunately, travis uses Xcode 9 by default.
5694
5695 attralias=no
5696 cat > $TMPC << EOF
5697 int x = 1;
5698 extern const int y __attribute__((alias("x")));
5699 int main(void) { return 0; }
5700 EOF
5701 if compile_prog "" "" ; then
5702     attralias=yes
5703 fi
5704
5705 ########################################
5706 # check if getauxval is available.
5707
5708 getauxval=no
5709 cat > $TMPC << EOF
5710 #include <sys/auxv.h>
5711 int main(void) {
5712   return getauxval(AT_HWCAP) == 0;
5713 }
5714 EOF
5715 if compile_prog "" "" ; then
5716     getauxval=yes
5717 fi
5718
5719 ########################################
5720 # check if ccache is interfering with
5721 # semantic analysis of macros
5722
5723 unset CCACHE_CPP2
5724 ccache_cpp2=no
5725 cat > $TMPC << EOF
5726 static const int Z = 1;
5727 #define fn() ({ Z; })
5728 #define TAUT(X) ((X) == Z)
5729 #define PAREN(X, Y) (X == Y)
5730 #define ID(X) (X)
5731 int main(int argc, char *argv[])
5732 {
5733     int x = 0, y = 0;
5734     x = ID(x);
5735     x = fn();
5736     fn();
5737     if (PAREN(x, y)) return 0;
5738     if (TAUT(Z)) return 0;
5739     return 0;
5740 }
5741 EOF
5742
5743 if ! compile_object "-Werror"; then
5744     ccache_cpp2=yes
5745 fi
5746
5747 #################################################
5748 # clang does not support glibc + FORTIFY_SOURCE.
5749
5750 if test "$fortify_source" != "no"; then
5751   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5752     fortify_source="no";
5753   elif test -n "$cxx" && has $cxx &&
5754        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5755     fortify_source="no";
5756   else
5757     fortify_source="yes"
5758   fi
5759 fi
5760
5761 ###############################################
5762 # Check if copy_file_range is provided by glibc
5763 have_copy_file_range=no
5764 cat > $TMPC << EOF
5765 #include <unistd.h>
5766 int main(void) {
5767   copy_file_range(0, NULL, 0, NULL, 0, 0);
5768   return 0;
5769 }
5770 EOF
5771 if compile_prog "" "" ; then
5772     have_copy_file_range=yes
5773 fi
5774
5775 ##########################################
5776 # check if struct fsxattr is available via linux/fs.h
5777
5778 have_fsxattr=no
5779 cat > $TMPC << EOF
5780 #include <linux/fs.h>
5781 struct fsxattr foo;
5782 int main(void) {
5783   return 0;
5784 }
5785 EOF
5786 if compile_prog "" "" ; then
5787     have_fsxattr=yes
5788 fi
5789
5790 ##########################################
5791 # check for usable membarrier system call
5792 if test "$membarrier" = "yes"; then
5793     have_membarrier=no
5794     if test "$mingw32" = "yes" ; then
5795         have_membarrier=yes
5796     elif test "$linux" = "yes" ; then
5797         cat > $TMPC << EOF
5798     #include <linux/membarrier.h>
5799     #include <sys/syscall.h>
5800     #include <unistd.h>
5801     #include <stdlib.h>
5802     int main(void) {
5803         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5804         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5805         exit(0);
5806     }
5807 EOF
5808         if compile_prog "" "" ; then
5809             have_membarrier=yes
5810         fi
5811     fi
5812     if test "$have_membarrier" = "no"; then
5813       feature_not_found "membarrier" "membarrier system call not available"
5814     fi
5815 else
5816     # Do not enable it by default even for Mingw32, because it doesn't
5817     # work on Wine.
5818     membarrier=no
5819 fi
5820
5821 ##########################################
5822 # check if rtnetlink.h exists and is useful
5823 have_rtnetlink=no
5824 cat > $TMPC << EOF
5825 #include <linux/rtnetlink.h>
5826 int main(void) {
5827   return IFLA_PROTO_DOWN;
5828 }
5829 EOF
5830 if compile_prog "" "" ; then
5831     have_rtnetlink=yes
5832 fi
5833
5834 ##########################################
5835 # check for usable AF_VSOCK environment
5836 have_af_vsock=no
5837 cat > $TMPC << EOF
5838 #include <errno.h>
5839 #include <sys/types.h>
5840 #include <sys/socket.h>
5841 #if !defined(AF_VSOCK)
5842 # error missing AF_VSOCK flag
5843 #endif
5844 #include <linux/vm_sockets.h>
5845 int main(void) {
5846     int sock, ret;
5847     struct sockaddr_vm svm;
5848     socklen_t len = sizeof(svm);
5849     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5850     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5851     if ((ret == -1) && (errno == ENOTCONN)) {
5852         return 0;
5853     }
5854     return -1;
5855 }
5856 EOF
5857 if compile_prog "" "" ; then
5858     have_af_vsock=yes
5859 fi
5860
5861 ##########################################
5862 # check for usable AF_ALG environment
5863 have_afalg=no
5864 cat > $TMPC << EOF
5865 #include <errno.h>
5866 #include <sys/types.h>
5867 #include <sys/socket.h>
5868 #include <linux/if_alg.h>
5869 int main(void) {
5870     int sock;
5871     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5872     return sock;
5873 }
5874 EOF
5875 if compile_prog "" "" ; then
5876     have_afalg=yes
5877 fi
5878 if test "$crypto_afalg" = "yes"
5879 then
5880     if test "$have_afalg" != "yes"
5881     then
5882         error_exit "AF_ALG requested but could not be detected"
5883     fi
5884 fi
5885
5886
5887 #################################################
5888 # Check to see if we have the Hypervisor framework
5889 if [ "$darwin" = "yes" ] ; then
5890   cat > $TMPC << EOF
5891 #include <Hypervisor/hv.h>
5892 int main() { return 0;}
5893 EOF
5894   if ! compile_object ""; then
5895     hvf='no'
5896   else
5897     hvf='yes'
5898     QEMU_LDFLAGS="-framework Hypervisor $QEMU_LDFLAGS"
5899   fi
5900 fi
5901
5902 ##########################################
5903 # check for sysmacros.h
5904
5905 have_sysmacros=no
5906 cat > $TMPC << EOF
5907 #include <sys/sysmacros.h>
5908 int main(void) {
5909     return makedev(0, 0);
5910 }
5911 EOF
5912 if compile_prog "" "" ; then
5913     have_sysmacros=yes
5914 fi
5915
5916 ##########################################
5917 # check for _Static_assert()
5918
5919 have_static_assert=no
5920 cat > $TMPC << EOF
5921 _Static_assert(1, "success");
5922 int main(void) {
5923     return 0;
5924 }
5925 EOF
5926 if compile_prog "" "" ; then
5927     have_static_assert=yes
5928 fi
5929
5930 ##########################################
5931 # check for utmpx.h, it is missing e.g. on OpenBSD
5932
5933 have_utmpx=no
5934 cat > $TMPC << EOF
5935 #include <utmpx.h>
5936 struct utmpx user_info;
5937 int main(void) {
5938     return 0;
5939 }
5940 EOF
5941 if compile_prog "" "" ; then
5942     have_utmpx=yes
5943 fi
5944
5945 ##########################################
5946 # check for getrandom()
5947
5948 have_getrandom=no
5949 cat > $TMPC << EOF
5950 #include <sys/random.h>
5951 int main(void) {
5952     return getrandom(0, 0, GRND_NONBLOCK);
5953 }
5954 EOF
5955 if compile_prog "" "" ; then
5956     have_getrandom=yes
5957 fi
5958
5959 ##########################################
5960 # checks for sanitizers
5961
5962 have_asan=no
5963 have_ubsan=no
5964 have_asan_iface_h=no
5965 have_asan_iface_fiber=no
5966
5967 if test "$sanitizers" = "yes" ; then
5968   write_c_skeleton
5969   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5970       have_asan=yes
5971   fi
5972
5973   # we could use a simple skeleton for flags checks, but this also
5974   # detect the static linking issue of ubsan, see also:
5975   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5976   cat > $TMPC << EOF
5977 #include <stdlib.h>
5978 int main(void) {
5979     void *tmp = malloc(10);
5980     if (tmp != NULL) {
5981         return *(int *)(tmp + 2);
5982     }
5983     return 1;
5984 }
5985 EOF
5986   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5987       have_ubsan=yes
5988   fi
5989
5990   if check_include "sanitizer/asan_interface.h" ; then
5991       have_asan_iface_h=yes
5992   fi
5993
5994   cat > $TMPC << EOF
5995 #include <sanitizer/asan_interface.h>
5996 int main(void) {
5997   __sanitizer_start_switch_fiber(0, 0, 0);
5998   return 0;
5999 }
6000 EOF
6001   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
6002       have_asan_iface_fiber=yes
6003   fi
6004 fi
6005
6006 ##########################################
6007 # checks for fuzzer
6008 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
6009   write_c_fuzzer_skeleton
6010   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
6011     have_fuzzer=yes
6012   else
6013     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
6014     exit 1
6015   fi
6016 fi
6017
6018 # Thread sanitizer is, for now, much noisier than the other sanitizers;
6019 # keep it separate until that is not the case.
6020 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
6021   error_exit "TSAN is not supported with other sanitiziers."
6022 fi
6023 have_tsan=no
6024 have_tsan_iface_fiber=no
6025 if test "$tsan" = "yes" ; then
6026   write_c_skeleton
6027   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
6028       have_tsan=yes
6029   fi
6030   cat > $TMPC << EOF
6031 #include <sanitizer/tsan_interface.h>
6032 int main(void) {
6033   __tsan_create_fiber(0);
6034   return 0;
6035 }
6036 EOF
6037   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
6038       have_tsan_iface_fiber=yes
6039   fi
6040 fi
6041
6042 ##########################################
6043 # check for libpmem
6044
6045 if test "$libpmem" != "no"; then
6046         if $pkg_config --exists "libpmem"; then
6047                 libpmem="yes"
6048                 libpmem_libs=$($pkg_config --libs libpmem)
6049                 libpmem_cflags=$($pkg_config --cflags libpmem)
6050         else
6051                 if test "$libpmem" = "yes" ; then
6052                         feature_not_found "libpmem" "Install nvml or pmdk"
6053                 fi
6054                 libpmem="no"
6055         fi
6056 fi
6057
6058 ##########################################
6059 # check for libdaxctl
6060
6061 if test "$libdaxctl" != "no"; then
6062         if $pkg_config --atleast-version=57 "libdaxctl"; then
6063                 libdaxctl="yes"
6064                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
6065                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
6066         else
6067                 if test "$libdaxctl" = "yes" ; then
6068                         feature_not_found "libdaxctl" "Install libdaxctl"
6069                 fi
6070                 libdaxctl="no"
6071         fi
6072 fi
6073
6074 ##########################################
6075 # check for slirp
6076
6077 # slirp is only required when building softmmu targets
6078 if test -z "$slirp" -a "$softmmu" != "yes" ; then
6079     slirp="no"
6080 fi
6081
6082 case "$slirp" in
6083   "" | yes)
6084     if $pkg_config slirp; then
6085       slirp=system
6086     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
6087       slirp=git
6088     elif test -e "${source_path}/slirp/Makefile" ; then
6089       slirp=internal
6090     elif test -z "$slirp" ; then
6091       slirp=no
6092     else
6093       feature_not_found "slirp" "Install slirp devel or git submodule"
6094     fi
6095     ;;
6096
6097   system)
6098     if ! $pkg_config slirp; then
6099       feature_not_found "slirp" "Install slirp devel"
6100     fi
6101     ;;
6102 esac
6103
6104 case "$slirp" in
6105   git | internal)
6106     if test "$slirp" = git; then
6107       git_submodules="${git_submodules} slirp"
6108     fi
6109     mkdir -p slirp
6110     slirp_cflags="-I${source_path}/slirp/src -Islirp/src"
6111     slirp_libs="-Lslirp -lslirp"
6112     if test "$mingw32" = "yes" ; then
6113       slirp_libs="$slirp_libs -lws2_32 -liphlpapi"
6114     fi
6115     ;;
6116
6117   system)
6118     slirp_version=$($pkg_config --modversion slirp 2>/dev/null)
6119     slirp_cflags=$($pkg_config --cflags slirp 2>/dev/null)
6120     slirp_libs=$($pkg_config --libs slirp 2>/dev/null)
6121     ;;
6122
6123   no)
6124     ;;
6125   *)
6126     error_exit "Unknown state for slirp: $slirp"
6127     ;;
6128 esac
6129
6130 ##########################################
6131 # check for usable __NR_keyctl syscall
6132
6133 if test "$linux" = "yes" ; then
6134
6135     have_keyring=no
6136     cat > $TMPC << EOF
6137 #include <errno.h>
6138 #include <asm/unistd.h>
6139 #include <linux/keyctl.h>
6140 #include <unistd.h>
6141 int main(void) {
6142     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
6143 }
6144 EOF
6145     if compile_prog "" "" ; then
6146         have_keyring=yes
6147     fi
6148 fi
6149 if test "$secret_keyring" != "no"
6150 then
6151     if test "$have_keyring" = "yes"
6152     then
6153         secret_keyring=yes
6154     else
6155         if test "$secret_keyring" = "yes"
6156         then
6157             error_exit "syscall __NR_keyctl requested, \
6158 but not implemented on your system"
6159         else
6160             secret_keyring=no
6161         fi
6162     fi
6163 fi
6164
6165 ##########################################
6166 # End of CC checks
6167 # After here, no more $cc or $ld runs
6168
6169 write_c_skeleton
6170
6171 if test "$gcov" = "yes" ; then
6172   :
6173 elif test "$fortify_source" = "yes" ; then
6174   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
6175   debug=no
6176 fi
6177 if test "$debug_info" = "yes"; then
6178   CFLAGS="-g $CFLAGS"
6179   LDFLAGS="-g $LDFLAGS"
6180 fi
6181 if test "$debug" = "no"; then
6182   CFLAGS="-O2 $CFLAGS"
6183 fi
6184
6185 case "$ARCH" in
6186 alpha)
6187   # Ensure there's only a single GP
6188   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
6189 ;;
6190 esac
6191
6192 if test "$gprof" = "yes" ; then
6193   QEMU_CFLAGS="-p $QEMU_CFLAGS"
6194   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
6195 fi
6196
6197 if test "$have_asan" = "yes"; then
6198   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
6199   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
6200   if test "$have_asan_iface_h" = "no" ; then
6201       echo "ASAN build enabled, but ASAN header missing." \
6202            "Without code annotation, the report may be inferior."
6203   elif test "$have_asan_iface_fiber" = "no" ; then
6204       echo "ASAN build enabled, but ASAN header is too old." \
6205            "Without code annotation, the report may be inferior."
6206   fi
6207 fi
6208 if test "$have_tsan" = "yes" ; then
6209   if test "$have_tsan_iface_fiber" = "yes" ; then
6210     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
6211     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
6212   else
6213     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
6214   fi
6215 elif test "$tsan" = "yes" ; then
6216   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
6217 fi
6218 if test "$have_ubsan" = "yes"; then
6219   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
6220   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
6221 fi
6222
6223 ##########################################
6224 # Do we have libnfs
6225 if test "$libnfs" != "no" ; then
6226   if $pkg_config --atleast-version=1.9.3 libnfs; then
6227     libnfs="yes"
6228     libnfs_libs=$($pkg_config --libs libnfs)
6229   else
6230     if test "$libnfs" = "yes" ; then
6231       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
6232     fi
6233     libnfs="no"
6234   fi
6235 fi
6236
6237 ##########################################
6238
6239 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
6240 if test "$solaris" = "no" && test "$tsan" = "no"; then
6241     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
6242         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
6243     fi
6244 fi
6245
6246 # Use ASLR, no-SEH and DEP if available
6247 if test "$mingw32" = "yes" ; then
6248     for flag in --dynamicbase --no-seh --nxcompat; do
6249         if ld_has $flag ; then
6250             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
6251         fi
6252     done
6253 fi
6254
6255 # Disable OpenBSD W^X if available
6256 if test "$tcg" = "yes" && test "$targetos" = "OpenBSD"; then
6257     cat > $TMPC <<EOF
6258     int main(void) { return 0; }
6259 EOF
6260     wx_ldflags="-Wl,-z,wxneeded"
6261     if compile_prog "" "$wx_ldflags"; then
6262         QEMU_LDFLAGS="$QEMU_LDFLAGS $wx_ldflags"
6263     fi
6264 fi
6265
6266 qemu_confdir="$sysconfdir/$qemu_suffix"
6267 qemu_moddir="$libdir/$qemu_suffix"
6268 qemu_datadir="$datadir/$qemu_suffix"
6269 qemu_docdir="$docdir/$qemu_suffix"
6270 qemu_localedir="$datadir/locale"
6271 qemu_icondir="$datadir/icons"
6272 qemu_desktopdir="$datadir/applications"
6273
6274 # We can only support ivshmem if we have eventfd
6275 if [ "$eventfd" = "yes" ]; then
6276   ivshmem=yes
6277 fi
6278
6279 if test "$softmmu" = yes ; then
6280   if test "$linux" = yes; then
6281     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
6282       virtfs=yes
6283     else
6284       if test "$virtfs" = yes; then
6285         error_exit "VirtFS requires libcap-ng devel and libattr devel"
6286       fi
6287       virtfs=no
6288     fi
6289   else
6290     if test "$virtfs" = yes; then
6291       error_exit "VirtFS is supported only on Linux"
6292     fi
6293     virtfs=no
6294   fi
6295 fi
6296
6297 # Probe for guest agent support/options
6298
6299 if [ "$guest_agent" != "no" ]; then
6300   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
6301       guest_agent=no
6302   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
6303       guest_agent=yes
6304   elif [ "$guest_agent" != yes ]; then
6305       guest_agent=no
6306   else
6307       error_exit "Guest agent is not supported on this platform"
6308   fi
6309 fi
6310
6311 # Guest agent Window MSI  package
6312
6313 if test "$guest_agent" != yes; then
6314   if test "$guest_agent_msi" = yes; then
6315     error_exit "MSI guest agent package requires guest agent enabled"
6316   fi
6317   guest_agent_msi=no
6318 elif test "$mingw32" != "yes"; then
6319   if test "$guest_agent_msi" = "yes"; then
6320     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
6321   fi
6322   guest_agent_msi=no
6323 elif ! has wixl; then
6324   if test "$guest_agent_msi" = "yes"; then
6325     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
6326   fi
6327   guest_agent_msi=no
6328 else
6329   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
6330   # disabled explicitly
6331   if test "$guest_agent_msi" != "no"; then
6332     guest_agent_msi=yes
6333   fi
6334 fi
6335
6336 if test "$guest_agent_msi" = "yes"; then
6337   if test "$guest_agent_with_vss" = "yes"; then
6338     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
6339   fi
6340
6341   if test "$QEMU_GA_MANUFACTURER" = ""; then
6342     QEMU_GA_MANUFACTURER=QEMU
6343   fi
6344
6345   if test "$QEMU_GA_DISTRO" = ""; then
6346     QEMU_GA_DISTRO=Linux
6347   fi
6348
6349   if test "$QEMU_GA_VERSION" = ""; then
6350       QEMU_GA_VERSION=$(cat $source_path/VERSION)
6351   fi
6352
6353   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
6354
6355   case "$cpu" in
6356   x86_64)
6357     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
6358     ;;
6359   i386)
6360     QEMU_GA_MSI_ARCH="-D Arch=32"
6361     ;;
6362   *)
6363     error_exit "CPU $cpu not supported for building installation package"
6364     ;;
6365   esac
6366 fi
6367
6368 # Mac OS X ships with a broken assembler
6369 roms=
6370 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
6371         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
6372         test "$softmmu" = yes ; then
6373     # Different host OS linkers have different ideas about the name of the ELF
6374     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
6375     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
6376     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
6377         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
6378             ld_i386_emulation="$emu"
6379             roms="optionrom"
6380             break
6381         fi
6382     done
6383 fi
6384
6385 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
6386 if test "$cpu" = "s390x" ; then
6387   write_c_skeleton
6388   if compile_prog "-march=z900" ""; then
6389     roms="$roms s390-ccw"
6390     # SLOF is required for building the s390-ccw firmware on s390x,
6391     # since it is using the libnet code from SLOF for network booting.
6392     if test -e "${source_path}/.git" ; then
6393       git_submodules="${git_submodules} roms/SLOF"
6394     fi
6395   fi
6396 fi
6397
6398 # Check that the C++ compiler exists and works with the C compiler.
6399 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
6400 if has $cxx; then
6401     cat > $TMPC <<EOF
6402 int c_function(void);
6403 int main(void) { return c_function(); }
6404 EOF
6405
6406     compile_object
6407
6408     cat > $TMPCXX <<EOF
6409 extern "C" {
6410    int c_function(void);
6411 }
6412 int c_function(void) { return 42; }
6413 EOF
6414
6415     update_cxxflags
6416
6417     if do_cxx $CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
6418         # C++ compiler $cxx works ok with C compiler $cc
6419         :
6420     else
6421         echo "C++ compiler $cxx does not work with C compiler $cc"
6422         echo "Disabling C++ specific optional code"
6423         cxx=
6424     fi
6425 else
6426     echo "No C++ compiler available; disabling C++ specific optional code"
6427     cxx=
6428 fi
6429
6430 if test $git_update = 'yes' ; then
6431     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
6432 fi
6433 if test "$fdt" = "git" ; then
6434     symlink "$source_path/dtc/Makefile" "dtc/Makefile"
6435 fi
6436
6437 config_host_mak="config-host.mak"
6438
6439 echo "# Automatically generated by configure - do not modify" > $config_host_mak
6440 echo >> $config_host_mak
6441
6442 echo all: >> $config_host_mak
6443 echo "prefix=$prefix" >> $config_host_mak
6444 echo "bindir=$bindir" >> $config_host_mak
6445 echo "libdir=$libdir" >> $config_host_mak
6446 echo "libexecdir=$libexecdir" >> $config_host_mak
6447 echo "includedir=$includedir" >> $config_host_mak
6448 echo "sysconfdir=$sysconfdir" >> $config_host_mak
6449 echo "qemu_confdir=$qemu_confdir" >> $config_host_mak
6450 echo "qemu_datadir=$qemu_datadir" >> $config_host_mak
6451 echo "qemu_firmwarepath=$firmwarepath" >> $config_host_mak
6452 echo "qemu_moddir=$qemu_moddir" >> $config_host_mak
6453 if test "$mingw32" = "no" ; then
6454   echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
6455 fi
6456 echo "qemu_helperdir=$libexecdir" >> $config_host_mak
6457 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
6458 echo "qemu_icondir=$qemu_icondir" >> $config_host_mak
6459 echo "qemu_desktopdir=$qemu_desktopdir" >> $config_host_mak
6460 echo "GIT=$git" >> $config_host_mak
6461 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
6462 echo "GIT_UPDATE=$git_update" >> $config_host_mak
6463
6464 echo "ARCH=$ARCH" >> $config_host_mak
6465
6466 if test "$default_devices" = "yes" ; then
6467   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
6468 else
6469   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
6470 fi
6471 if test "$debug_tcg" = "yes" ; then
6472   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
6473 fi
6474 if test "$strip_opt" = "yes" ; then
6475   echo "STRIP=${strip}" >> $config_host_mak
6476 fi
6477 if test "$bigendian" = "yes" ; then
6478   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
6479 fi
6480 if test "$mingw32" = "yes" ; then
6481   echo "CONFIG_WIN32=y" >> $config_host_mak
6482   rc_version=$(cat $source_path/VERSION)
6483   version_major=${rc_version%%.*}
6484   rc_version=${rc_version#*.}
6485   version_minor=${rc_version%%.*}
6486   rc_version=${rc_version#*.}
6487   version_subminor=${rc_version%%.*}
6488   version_micro=0
6489   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6490   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6491   if test "$guest_agent_with_vss" = "yes" ; then
6492     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
6493     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
6494     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
6495   fi
6496   if test "$guest_agent_ntddscsi" = "yes" ; then
6497     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
6498   fi
6499   if test "$guest_agent_msi" = "yes"; then
6500     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
6501     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
6502     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
6503     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
6504     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
6505     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
6506     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
6507   fi
6508 else
6509   echo "CONFIG_POSIX=y" >> $config_host_mak
6510 fi
6511
6512 if test "$linux" = "yes" ; then
6513   echo "CONFIG_LINUX=y" >> $config_host_mak
6514 fi
6515
6516 if test "$darwin" = "yes" ; then
6517   echo "CONFIG_DARWIN=y" >> $config_host_mak
6518 fi
6519
6520 if test "$solaris" = "yes" ; then
6521   echo "CONFIG_SOLARIS=y" >> $config_host_mak
6522 fi
6523 if test "$haiku" = "yes" ; then
6524   echo "CONFIG_HAIKU=y" >> $config_host_mak
6525 fi
6526 if test "$static" = "yes" ; then
6527   echo "CONFIG_STATIC=y" >> $config_host_mak
6528 fi
6529 if test "$profiler" = "yes" ; then
6530   echo "CONFIG_PROFILER=y" >> $config_host_mak
6531 fi
6532 if test "$want_tools" = "yes" ; then
6533   echo "CONFIG_TOOLS=y" >> $config_host_mak
6534 fi
6535 if test "$guest_agent" = "yes" ; then
6536   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
6537 fi
6538 if test "$slirp" != "no"; then
6539   echo "CONFIG_SLIRP=y" >> $config_host_mak
6540   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
6541   echo "SLIRP_CFLAGS=$slirp_cflags" >> $config_host_mak
6542   echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
6543 fi
6544 subdirs=
6545 if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
6546   subdirs="$subdirs slirp"
6547 fi
6548 if test "$vde" = "yes" ; then
6549   echo "CONFIG_VDE=y" >> $config_host_mak
6550   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
6551 fi
6552 if test "$netmap" = "yes" ; then
6553   echo "CONFIG_NETMAP=y" >> $config_host_mak
6554 fi
6555 if test "$l2tpv3" = "yes" ; then
6556   echo "CONFIG_L2TPV3=y" >> $config_host_mak
6557 fi
6558 if test "$gprof" = "yes" ; then
6559   echo "CONFIG_GPROF=y" >> $config_host_mak
6560 fi
6561 if test "$cap_ng" = "yes" ; then
6562   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
6563   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
6564 fi
6565 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
6566 for drv in $audio_drv_list; do
6567     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
6568     echo "$def=y" >> $config_host_mak
6569 done
6570 if test "$alsa" = "yes" ; then
6571     echo "CONFIG_ALSA=y" >> $config_host_mak
6572 fi
6573 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6574 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
6575 if test "$libpulse" = "yes" ; then
6576     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
6577 fi
6578 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6579 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6580 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6581 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6582 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6583 if test "$libjack" = "yes" ; then
6584     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6585 fi
6586 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6587 if test "$audio_win_int" = "yes" ; then
6588   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6589 fi
6590 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6591 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6592 if test "$xfs" = "yes" ; then
6593   echo "CONFIG_XFS=y" >> $config_host_mak
6594 fi
6595 qemu_version=$(head $source_path/VERSION)
6596 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6597 echo "SRC_PATH=$source_path" >> $config_host_mak
6598 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6599 if [ "$docs" = "yes" ] ; then
6600   echo "BUILD_DOCS=yes" >> $config_host_mak
6601 fi
6602 if test "$modules" = "yes"; then
6603   # $shacmd can generate a hash started with digit, which the compiler doesn't
6604   # like as an symbol. So prefix it with an underscore
6605   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6606   echo "CONFIG_MODULES=y" >> $config_host_mak
6607 fi
6608 if test "$module_upgrades" = "yes"; then
6609   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6610 fi
6611 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6612   echo "CONFIG_X11=y" >> $config_host_mak
6613   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6614   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6615 fi
6616 if test "$cocoa" = "yes" ; then
6617   echo "CONFIG_COCOA=y" >> $config_host_mak
6618 fi
6619 if test "$iconv" = "yes" ; then
6620   echo "CONFIG_ICONV=y" >> $config_host_mak
6621   echo "ICONV_CFLAGS=$iconv_cflags" >> $config_host_mak
6622   echo "ICONV_LIBS=$iconv_lib" >> $config_host_mak
6623 fi
6624 if test "$curses" = "yes" ; then
6625   echo "CONFIG_CURSES=y" >> $config_host_mak
6626   echo "CURSES_CFLAGS=$curses_inc" >> $config_host_mak
6627   echo "CURSES_LIBS=$curses_lib" >> $config_host_mak
6628 fi
6629 if test "$pipe2" = "yes" ; then
6630   echo "CONFIG_PIPE2=y" >> $config_host_mak
6631 fi
6632 if test "$accept4" = "yes" ; then
6633   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6634 fi
6635 if test "$splice" = "yes" ; then
6636   echo "CONFIG_SPLICE=y" >> $config_host_mak
6637 fi
6638 if test "$eventfd" = "yes" ; then
6639   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6640 fi
6641 if test "$memfd" = "yes" ; then
6642   echo "CONFIG_MEMFD=y" >> $config_host_mak
6643 fi
6644 if test "$have_usbfs" = "yes" ; then
6645   echo "CONFIG_USBFS=y" >> $config_host_mak
6646 fi
6647 if test "$fallocate" = "yes" ; then
6648   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6649 fi
6650 if test "$fallocate_punch_hole" = "yes" ; then
6651   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6652 fi
6653 if test "$fallocate_zero_range" = "yes" ; then
6654   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6655 fi
6656 if test "$posix_fallocate" = "yes" ; then
6657   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6658 fi
6659 if test "$sync_file_range" = "yes" ; then
6660   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6661 fi
6662 if test "$fiemap" = "yes" ; then
6663   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6664 fi
6665 if test "$dup3" = "yes" ; then
6666   echo "CONFIG_DUP3=y" >> $config_host_mak
6667 fi
6668 if test "$ppoll" = "yes" ; then
6669   echo "CONFIG_PPOLL=y" >> $config_host_mak
6670 fi
6671 if test "$prctl_pr_set_timerslack" = "yes" ; then
6672   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6673 fi
6674 if test "$epoll" = "yes" ; then
6675   echo "CONFIG_EPOLL=y" >> $config_host_mak
6676 fi
6677 if test "$epoll_create1" = "yes" ; then
6678   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6679 fi
6680 if test "$sendfile" = "yes" ; then
6681   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6682 fi
6683 if test "$timerfd" = "yes" ; then
6684   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6685 fi
6686 if test "$setns" = "yes" ; then
6687   echo "CONFIG_SETNS=y" >> $config_host_mak
6688 fi
6689 if test "$clock_adjtime" = "yes" ; then
6690   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6691 fi
6692 if test "$syncfs" = "yes" ; then
6693   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6694 fi
6695 if test "$kcov" = "yes" ; then
6696   echo "CONFIG_KCOV=y" >> $config_host_mak
6697 fi
6698 if test "$btrfs" = "yes" ; then
6699   echo "CONFIG_BTRFS=y" >> $config_host_mak
6700 fi
6701 if test "$inotify" = "yes" ; then
6702   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6703 fi
6704 if test "$inotify1" = "yes" ; then
6705   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6706 fi
6707 if test "$sem_timedwait" = "yes" ; then
6708   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6709 fi
6710 if test "$strchrnul" = "yes" ; then
6711   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6712 fi
6713 if test "$st_atim" = "yes" ; then
6714   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6715 fi
6716 if test "$byteswap_h" = "yes" ; then
6717   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6718 fi
6719 if test "$bswap_h" = "yes" ; then
6720   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6721 fi
6722 if test "$curl" = "yes" ; then
6723   echo "CONFIG_CURL=y" >> $config_host_mak
6724   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6725   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6726 fi
6727 if test "$brlapi" = "yes" ; then
6728   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6729   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6730 fi
6731 if test "$gtk" = "yes" ; then
6732   echo "CONFIG_GTK=y" >> $config_host_mak
6733   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6734   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6735   if test "$gtk_gl" = "yes" ; then
6736     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6737   fi
6738 fi
6739 if test "$gio" = "yes" ; then
6740     echo "CONFIG_GIO=y" >> $config_host_mak
6741     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6742     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6743     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6744 fi
6745 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6746 if test "$gnutls" = "yes" ; then
6747   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6748   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6749   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6750 fi
6751 if test "$gcrypt" = "yes" ; then
6752   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6753   if test "$gcrypt_hmac" = "yes" ; then
6754     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6755   fi
6756   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6757   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6758 fi
6759 if test "$nettle" = "yes" ; then
6760   echo "CONFIG_NETTLE=y" >> $config_host_mak
6761   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6762   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6763   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6764 fi
6765 if test "$qemu_private_xts" = "yes" ; then
6766   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6767 fi
6768 if test "$tasn1" = "yes" ; then
6769   echo "CONFIG_TASN1=y" >> $config_host_mak
6770 fi
6771 if test "$auth_pam" = "yes" ; then
6772     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6773 fi
6774 if test "$have_ifaddrs_h" = "yes" ; then
6775     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6776 fi
6777 if test "$have_drm_h" = "yes" ; then
6778   echo "HAVE_DRM_H=y" >> $config_host_mak
6779 fi
6780 if test "$have_broken_size_max" = "yes" ; then
6781     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6782 fi
6783 if test "$have_openpty" = "yes" ; then
6784     echo "HAVE_OPENPTY=y" >> $config_host_mak
6785 fi
6786 if test "$have_sys_signal_h" = "yes" ; then
6787     echo "HAVE_SYS_SIGNAL_H=y" >> $config_host_mak
6788 fi
6789
6790 # Work around a system header bug with some kernel/XFS header
6791 # versions where they both try to define 'struct fsxattr':
6792 # xfs headers will not try to redefine structs from linux headers
6793 # if this macro is set.
6794 if test "$have_fsxattr" = "yes" ; then
6795     echo "HAVE_FSXATTR=y" >> $config_host_mak
6796 fi
6797 if test "$have_copy_file_range" = "yes" ; then
6798     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6799 fi
6800 if test "$vte" = "yes" ; then
6801   echo "CONFIG_VTE=y" >> $config_host_mak
6802   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6803   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6804 fi
6805 if test "$virglrenderer" = "yes" ; then
6806   echo "CONFIG_VIRGL=y" >> $config_host_mak
6807   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6808   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6809 fi
6810 if test "$xen" = "yes" ; then
6811   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6812   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6813   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6814   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6815 fi
6816 if test "$linux_aio" = "yes" ; then
6817   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6818 fi
6819 if test "$linux_io_uring" = "yes" ; then
6820   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6821   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6822   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6823 fi
6824 if test "$attr" = "yes" ; then
6825   echo "CONFIG_ATTR=y" >> $config_host_mak
6826   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6827 fi
6828 if test "$libattr" = "yes" ; then
6829   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6830 fi
6831 if test "$virtfs" = "yes" ; then
6832   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6833 fi
6834 if test "$vhost_scsi" = "yes" ; then
6835   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6836 fi
6837 if test "$vhost_net" = "yes" ; then
6838   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6839 fi
6840 if test "$vhost_net_user" = "yes" ; then
6841   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6842 fi
6843 if test "$vhost_net_vdpa" = "yes" ; then
6844   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6845 fi
6846 if test "$vhost_crypto" = "yes" ; then
6847   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6848 fi
6849 if test "$vhost_vsock" = "yes" ; then
6850   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6851   if test "$vhost_user" = "yes" ; then
6852     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6853   fi
6854 fi
6855 if test "$vhost_kernel" = "yes" ; then
6856   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6857 fi
6858 if test "$vhost_user" = "yes" ; then
6859   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6860 fi
6861 if test "$vhost_vdpa" = "yes" ; then
6862   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6863 fi
6864 if test "$vhost_user_fs" = "yes" ; then
6865   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6866 fi
6867 if test "$blobs" = "yes" ; then
6868   echo "INSTALL_BLOBS=yes" >> $config_host_mak
6869 fi
6870 if test "$iovec" = "yes" ; then
6871   echo "CONFIG_IOVEC=y" >> $config_host_mak
6872 fi
6873 if test "$preadv" = "yes" ; then
6874   echo "CONFIG_PREADV=y" >> $config_host_mak
6875 fi
6876 if test "$fdt" != "no" ; then
6877   echo "CONFIG_FDT=y" >> $config_host_mak
6878   echo "FDT_CFLAGS=$fdt_cflags" >> $config_host_mak
6879   echo "FDT_LIBS=$fdt_ldflags $fdt_libs" >> $config_host_mak
6880 fi
6881 if test "$membarrier" = "yes" ; then
6882   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6883 fi
6884 if test "$signalfd" = "yes" ; then
6885   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6886 fi
6887 if test "$optreset" = "yes" ; then
6888   echo "HAVE_OPTRESET=y" >> $config_host_mak
6889 fi
6890 if test "$tcg" = "yes"; then
6891   echo "CONFIG_TCG=y" >> $config_host_mak
6892   if test "$tcg_interpreter" = "yes" ; then
6893     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6894   fi
6895 fi
6896 if test "$fdatasync" = "yes" ; then
6897   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6898 fi
6899 if test "$madvise" = "yes" ; then
6900   echo "CONFIG_MADVISE=y" >> $config_host_mak
6901 fi
6902 if test "$posix_madvise" = "yes" ; then
6903   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6904 fi
6905 if test "$posix_memalign" = "yes" ; then
6906   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6907 fi
6908 if test "$spice" = "yes" ; then
6909   echo "CONFIG_SPICE=y" >> $config_host_mak
6910   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6911   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6912 fi
6913
6914 if test "$smartcard" = "yes" ; then
6915   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6916   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6917   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6918 fi
6919
6920 if test "$libusb" = "yes" ; then
6921   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6922   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6923   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6924 fi
6925
6926 if test "$usb_redir" = "yes" ; then
6927   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6928   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6929   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6930 fi
6931
6932 if test "$opengl" = "yes" ; then
6933   echo "CONFIG_OPENGL=y" >> $config_host_mak
6934   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
6935   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6936   if test "$opengl_dmabuf" = "yes" ; then
6937     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6938   fi
6939 fi
6940
6941 if test "$gbm" = "yes" ; then
6942     echo "CONFIG_GBM=y" >> $config_host_mak
6943     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6944     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6945 fi
6946
6947
6948 if test "$malloc_trim" = "yes" ; then
6949   echo "CONFIG_MALLOC_TRIM=y" >> $config_host_mak
6950 fi
6951
6952 if test "$avx2_opt" = "yes" ; then
6953   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
6954 fi
6955
6956 if test "$avx512f_opt" = "yes" ; then
6957   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
6958 fi
6959
6960 if test "$lzo" = "yes" ; then
6961   echo "CONFIG_LZO=y" >> $config_host_mak
6962   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
6963 fi
6964
6965 if test "$snappy" = "yes" ; then
6966   echo "CONFIG_SNAPPY=y" >> $config_host_mak
6967   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
6968 fi
6969
6970 if test "$bzip2" = "yes" ; then
6971   echo "CONFIG_BZIP2=y" >> $config_host_mak
6972   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
6973 fi
6974
6975 if test "$lzfse" = "yes" ; then
6976   echo "CONFIG_LZFSE=y" >> $config_host_mak
6977   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
6978 fi
6979
6980 if test "$zstd" = "yes" ; then
6981   echo "CONFIG_ZSTD=y" >> $config_host_mak
6982   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
6983   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
6984 fi
6985
6986 if test "$libiscsi" = "yes" ; then
6987   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
6988   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
6989   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
6990 fi
6991
6992 if test "$libnfs" = "yes" ; then
6993   echo "CONFIG_LIBNFS=y" >> $config_host_mak
6994   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
6995 fi
6996
6997 if test "$seccomp" = "yes"; then
6998   echo "CONFIG_SECCOMP=y" >> $config_host_mak
6999   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
7000   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
7001 fi
7002
7003 # XXX: suppress that
7004 if [ "$bsd" = "yes" ] ; then
7005   echo "CONFIG_BSD=y" >> $config_host_mak
7006 fi
7007
7008 if test "$localtime_r" = "yes" ; then
7009   echo "CONFIG_LOCALTIME_R=y" >> $config_host_mak
7010 fi
7011 if test "$qom_cast_debug" = "yes" ; then
7012   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
7013 fi
7014 if test "$rbd" = "yes" ; then
7015   echo "CONFIG_RBD=y" >> $config_host_mak
7016   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
7017 fi
7018
7019 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
7020 if test "$coroutine_pool" = "yes" ; then
7021   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
7022 else
7023   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
7024 fi
7025
7026 if test "$debug_stack_usage" = "yes" ; then
7027   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
7028 fi
7029
7030 if test "$crypto_afalg" = "yes" ; then
7031   echo "CONFIG_AF_ALG=y" >> $config_host_mak
7032 fi
7033
7034 if test "$open_by_handle_at" = "yes" ; then
7035   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
7036 fi
7037
7038 if test "$linux_magic_h" = "yes" ; then
7039   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
7040 fi
7041
7042 if test "$valgrind_h" = "yes" ; then
7043   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
7044 fi
7045
7046 if test "$have_asan_iface_fiber" = "yes" ; then
7047     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
7048 fi
7049
7050 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
7051     echo "CONFIG_TSAN=y" >> $config_host_mak
7052 fi
7053
7054 if test "$has_environ" = "yes" ; then
7055   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
7056 fi
7057
7058 if test "$cpuid_h" = "yes" ; then
7059   echo "CONFIG_CPUID_H=y" >> $config_host_mak
7060 fi
7061
7062 if test "$int128" = "yes" ; then
7063   echo "CONFIG_INT128=y" >> $config_host_mak
7064 fi
7065
7066 if test "$atomic128" = "yes" ; then
7067   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
7068 fi
7069
7070 if test "$cmpxchg128" = "yes" ; then
7071   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
7072 fi
7073
7074 if test "$atomic64" = "yes" ; then
7075   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
7076 fi
7077
7078 if test "$attralias" = "yes" ; then
7079   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
7080 fi
7081
7082 if test "$getauxval" = "yes" ; then
7083   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
7084 fi
7085
7086 if test "$glusterfs" = "yes" ; then
7087   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
7088   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
7089   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
7090 fi
7091
7092 if test "$glusterfs_xlator_opt" = "yes" ; then
7093   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
7094 fi
7095
7096 if test "$glusterfs_discard" = "yes" ; then
7097   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
7098 fi
7099
7100 if test "$glusterfs_fallocate" = "yes" ; then
7101   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
7102 fi
7103
7104 if test "$glusterfs_zerofill" = "yes" ; then
7105   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
7106 fi
7107
7108 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
7109   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
7110 fi
7111
7112 if test "$glusterfs_iocb_has_stat" = "yes" ; then
7113   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
7114 fi
7115
7116 if test "$libssh" = "yes" ; then
7117   echo "CONFIG_LIBSSH=y" >> $config_host_mak
7118   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
7119   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
7120 fi
7121
7122 if test "$live_block_migration" = "yes" ; then
7123   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
7124 fi
7125
7126 if test "$tpm" = "yes"; then
7127   echo 'CONFIG_TPM=y' >> $config_host_mak
7128 fi
7129
7130 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
7131 if have_backend "nop"; then
7132   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
7133 fi
7134 if have_backend "simple"; then
7135   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
7136   # Set the appropriate trace file.
7137   trace_file="\"$trace_file-\" FMT_pid"
7138 fi
7139 if have_backend "log"; then
7140   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
7141 fi
7142 if have_backend "ust"; then
7143   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
7144   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
7145   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
7146 fi
7147 if have_backend "dtrace"; then
7148   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
7149   if test "$trace_backend_stap" = "yes" ; then
7150     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
7151   fi
7152 fi
7153 if have_backend "ftrace"; then
7154   if test "$linux" = "yes" ; then
7155     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
7156   else
7157     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
7158   fi
7159 fi
7160 if have_backend "syslog"; then
7161   if test "$posix_syslog" = "yes" ; then
7162     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
7163   else
7164     feature_not_found "syslog(trace backend)" "syslog not available"
7165   fi
7166 fi
7167 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
7168
7169 if test "$rdma" = "yes" ; then
7170   echo "CONFIG_RDMA=y" >> $config_host_mak
7171   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
7172 fi
7173
7174 if test "$pvrdma" = "yes" ; then
7175   echo "CONFIG_PVRDMA=y" >> $config_host_mak
7176 fi
7177
7178 if test "$have_rtnetlink" = "yes" ; then
7179   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
7180 fi
7181
7182 if test "$libxml2" = "yes" ; then
7183   echo "CONFIG_LIBXML2=y" >> $config_host_mak
7184   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
7185   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
7186 fi
7187
7188 if test "$replication" = "yes" ; then
7189   echo "CONFIG_REPLICATION=y" >> $config_host_mak
7190 fi
7191
7192 if test "$have_af_vsock" = "yes" ; then
7193   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
7194 fi
7195
7196 if test "$have_sysmacros" = "yes" ; then
7197   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
7198 fi
7199
7200 if test "$have_static_assert" = "yes" ; then
7201   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
7202 fi
7203
7204 if test "$have_utmpx" = "yes" ; then
7205   echo "HAVE_UTMPX=y" >> $config_host_mak
7206 fi
7207 if test "$have_getrandom" = "yes" ; then
7208   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
7209 fi
7210 if test "$ivshmem" = "yes" ; then
7211   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
7212 fi
7213 if test "$capstone" != "no" ; then
7214   echo "CONFIG_CAPSTONE=y" >> $config_host_mak
7215   echo "CAPSTONE_CFLAGS=$capstone_cflags" >> $config_host_mak
7216   echo "CAPSTONE_LIBS=$capstone_libs" >> $config_host_mak
7217 fi
7218 if test "$debug_mutex" = "yes" ; then
7219   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
7220 fi
7221
7222 # Hold two types of flag:
7223 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
7224 #                                     a thread we have a handle to
7225 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
7226 #                                     platform
7227 if test "$pthread_setname_np_w_tid" = "yes" ; then
7228   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7229   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
7230 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
7231   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7232   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
7233 fi
7234
7235 if test "$libpmem" = "yes" ; then
7236   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
7237   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
7238   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
7239 fi
7240
7241 if test "$libdaxctl" = "yes" ; then
7242   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
7243   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
7244 fi
7245
7246 if test "$bochs" = "yes" ; then
7247   echo "CONFIG_BOCHS=y" >> $config_host_mak
7248 fi
7249 if test "$cloop" = "yes" ; then
7250   echo "CONFIG_CLOOP=y" >> $config_host_mak
7251 fi
7252 if test "$dmg" = "yes" ; then
7253   echo "CONFIG_DMG=y" >> $config_host_mak
7254 fi
7255 if test "$qcow1" = "yes" ; then
7256   echo "CONFIG_QCOW1=y" >> $config_host_mak
7257 fi
7258 if test "$vdi" = "yes" ; then
7259   echo "CONFIG_VDI=y" >> $config_host_mak
7260 fi
7261 if test "$vvfat" = "yes" ; then
7262   echo "CONFIG_VVFAT=y" >> $config_host_mak
7263 fi
7264 if test "$qed" = "yes" ; then
7265   echo "CONFIG_QED=y" >> $config_host_mak
7266 fi
7267 if test "$parallels" = "yes" ; then
7268   echo "CONFIG_PARALLELS=y" >> $config_host_mak
7269 fi
7270 if test "$sheepdog" = "yes" ; then
7271   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
7272 fi
7273 if test "$pty_h" = "yes" ; then
7274   echo "HAVE_PTY_H=y" >> $config_host_mak
7275 fi
7276 if test "$have_mlockall" = "yes" ; then
7277   echo "HAVE_MLOCKALL=y" >> $config_host_mak
7278 fi
7279 if test "$fuzzing" = "yes" ; then
7280   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
7281   # needed CFLAGS have already been provided
7282   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
7283     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
7284     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
7285   else
7286     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
7287   fi
7288 fi
7289
7290 if test "$plugins" = "yes" ; then
7291     echo "CONFIG_PLUGIN=y" >> $config_host_mak
7292     # Copy the export object list to the build dir
7293     if test "$ld_dynamic_list" = "yes" ; then
7294         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
7295         ld_symbols=qemu-plugins-ld.symbols
7296         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
7297     elif test "$ld_exported_symbols_list" = "yes" ; then
7298         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
7299         ld64_symbols=qemu-plugins-ld64.symbols
7300         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
7301         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
7302             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
7303     else
7304         error_exit \
7305             "If \$plugins=yes, either \$ld_dynamic_list or " \
7306             "\$ld_exported_symbols_list should have been set to 'yes'."
7307     fi
7308 fi
7309
7310 if test -n "$gdb_bin" ; then
7311     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
7312 fi
7313
7314 if test "$secret_keyring" = "yes" ; then
7315   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
7316 fi
7317
7318 if test "$tcg_interpreter" = "yes"; then
7319   QEMU_INCLUDES="-iquote ${source_path}/tcg/tci $QEMU_INCLUDES"
7320 elif test "$ARCH" = "sparc64" ; then
7321   QEMU_INCLUDES="-iquote ${source_path}/tcg/sparc $QEMU_INCLUDES"
7322 elif test "$ARCH" = "s390x" ; then
7323   QEMU_INCLUDES="-iquote ${source_path}/tcg/s390 $QEMU_INCLUDES"
7324 elif test "$ARCH" = "x86_64" || test "$ARCH" = "x32" ; then
7325   QEMU_INCLUDES="-iquote ${source_path}/tcg/i386 $QEMU_INCLUDES"
7326 elif test "$ARCH" = "ppc64" ; then
7327   QEMU_INCLUDES="-iquote ${source_path}/tcg/ppc $QEMU_INCLUDES"
7328 elif test "$ARCH" = "riscv32" || test "$ARCH" = "riscv64" ; then
7329   QEMU_INCLUDES="-I${source_path}/tcg/riscv $QEMU_INCLUDES"
7330 else
7331   QEMU_INCLUDES="-iquote ${source_path}/tcg/${ARCH} $QEMU_INCLUDES"
7332 fi
7333
7334 echo "ROMS=$roms" >> $config_host_mak
7335 echo "MAKE=$make" >> $config_host_mak
7336 echo "PYTHON=$python" >> $config_host_mak
7337 echo "SPHINX_BUILD=$sphinx_build" >> $config_host_mak
7338 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
7339 echo "MESON=$meson" >> $config_host_mak
7340 echo "CC=$cc" >> $config_host_mak
7341 if $iasl -h > /dev/null 2>&1; then
7342   echo "CONFIG_IASL=$iasl" >> $config_host_mak
7343 fi
7344 echo "CXX=$cxx" >> $config_host_mak
7345 echo "OBJCC=$objcc" >> $config_host_mak
7346 echo "AR=$ar" >> $config_host_mak
7347 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
7348 echo "AS=$as" >> $config_host_mak
7349 echo "CCAS=$ccas" >> $config_host_mak
7350 echo "CPP=$cpp" >> $config_host_mak
7351 echo "OBJCOPY=$objcopy" >> $config_host_mak
7352 echo "LD=$ld" >> $config_host_mak
7353 echo "RANLIB=$ranlib" >> $config_host_mak
7354 echo "NM=$nm" >> $config_host_mak
7355 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
7356 echo "WINDRES=$windres" >> $config_host_mak
7357 echo "CFLAGS=$CFLAGS" >> $config_host_mak
7358 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
7359 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
7360 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
7361 echo "QEMU_INCLUDES=$QEMU_INCLUDES" >> $config_host_mak
7362 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
7363 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
7364 if test "$sparse" = "yes" ; then
7365   echo "SPARSE_CFLAGS = -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak
7366 fi
7367 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
7368 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
7369 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
7370 echo "PTHREAD_LIB=$PTHREAD_LIB" >> $config_host_mak
7371 echo "EXESUF=$EXESUF" >> $config_host_mak
7372 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
7373 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
7374 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
7375 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
7376 if test "$gcov" = "yes" ; then
7377   echo "CONFIG_GCOV=y" >> $config_host_mak
7378 fi
7379
7380 if test "$fuzzing" != "no"; then
7381     echo "CONFIG_FUZZ=y" >> $config_host_mak
7382 fi
7383 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
7384
7385 if test "$edk2_blobs" = "yes" ; then
7386   echo "DECOMPRESS_EDK2_BLOBS=y" >> $config_host_mak
7387 fi
7388
7389 if test "$rng_none" = "yes"; then
7390   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
7391 fi
7392
7393 # use included Linux headers
7394 if test "$linux" = "yes" ; then
7395   mkdir -p linux-headers
7396   case "$cpu" in
7397   i386|x86_64|x32)
7398     linux_arch=x86
7399     ;;
7400   ppc|ppc64|ppc64le)
7401     linux_arch=powerpc
7402     ;;
7403   s390x)
7404     linux_arch=s390
7405     ;;
7406   aarch64)
7407     linux_arch=arm64
7408     ;;
7409   mips64)
7410     linux_arch=mips
7411     ;;
7412   *)
7413     # For most CPUs the kernel architecture name and QEMU CPU name match.
7414     linux_arch="$cpu"
7415     ;;
7416   esac
7417     # For non-KVM architectures we will not have asm headers
7418     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
7419       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
7420     fi
7421 fi
7422
7423 for target in $target_list; do
7424 target_dir="$target"
7425 config_target_mak=$target_dir/config-target.mak
7426 target_name=$(echo $target | cut -d '-' -f 1)
7427 target_aligned_only="no"
7428 case "$target_name" in
7429   alpha|hppa|mips64el|mips64|mipsel|mips|mipsn32|mipsn32el|sh4|sh4eb|sparc|sparc64|sparc32plus|xtensa|xtensaeb)
7430   target_aligned_only="yes"
7431   ;;
7432 esac
7433 target_bigendian="no"
7434 case "$target_name" in
7435   armeb|aarch64_be|hppa|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or1k|ppc|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
7436   target_bigendian="yes"
7437   ;;
7438 esac
7439 target_softmmu="no"
7440 target_user_only="no"
7441 target_linux_user="no"
7442 target_bsd_user="no"
7443 case "$target" in
7444   ${target_name}-softmmu)
7445     target_softmmu="yes"
7446     ;;
7447   ${target_name}-linux-user)
7448     target_user_only="yes"
7449     target_linux_user="yes"
7450     ;;
7451   ${target_name}-bsd-user)
7452     target_user_only="yes"
7453     target_bsd_user="yes"
7454     ;;
7455   *)
7456     error_exit "Target '$target' not recognised"
7457     exit 1
7458     ;;
7459 esac
7460
7461 mkdir -p $target_dir
7462 echo "# Automatically generated by configure - do not modify" > $config_target_mak
7463
7464 bflt="no"
7465 mttcg="no"
7466 interp_prefix1=$(echo "$interp_prefix" | sed "s/%M/$target_name/g")
7467 gdb_xml_files=""
7468
7469 TARGET_ARCH="$target_name"
7470 TARGET_BASE_ARCH=""
7471 TARGET_ABI_DIR=""
7472 TARGET_SYSTBL_ABI=""
7473 TARGET_SYSTBL=""
7474
7475 case "$target_name" in
7476   i386)
7477     mttcg="yes"
7478     gdb_xml_files="i386-32bit.xml"
7479     TARGET_SYSTBL_ABI=i386
7480     TARGET_SYSTBL=syscall_32.tbl
7481   ;;
7482   x86_64)
7483     TARGET_BASE_ARCH=i386
7484     TARGET_SYSTBL_ABI=common,64
7485     TARGET_SYSTBL=syscall_64.tbl
7486     mttcg="yes"
7487     gdb_xml_files="i386-64bit.xml"
7488   ;;
7489   alpha)
7490     mttcg="yes"
7491     TARGET_SYSTBL_ABI=common
7492   ;;
7493   arm|armeb)
7494     TARGET_ARCH=arm
7495     TARGET_SYSTBL_ABI=common,oabi
7496     bflt="yes"
7497     mttcg="yes"
7498     gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml arm-m-profile.xml"
7499   ;;
7500   aarch64|aarch64_be)
7501     TARGET_ARCH=aarch64
7502     TARGET_BASE_ARCH=arm
7503     bflt="yes"
7504     mttcg="yes"
7505     gdb_xml_files="aarch64-core.xml aarch64-fpu.xml arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml arm-m-profile.xml"
7506   ;;
7507   avr)
7508     gdb_xml_files="avr-cpu.xml"
7509     target_compiler=$cross_cc_avr
7510   ;;
7511   cris)
7512   ;;
7513   hppa)
7514     mttcg="yes"
7515     TARGET_SYSTBL_ABI=common,32
7516   ;;
7517   lm32)
7518   ;;
7519   m68k)
7520     bflt="yes"
7521     gdb_xml_files="cf-core.xml cf-fp.xml m68k-core.xml m68k-fp.xml"
7522     TARGET_SYSTBL_ABI=common
7523   ;;
7524   microblaze|microblazeel)
7525     TARGET_ARCH=microblaze
7526     TARGET_SYSTBL_ABI=common
7527     mttcg="yes"
7528     bflt="yes"
7529   ;;
7530   mips|mipsel)
7531     mttcg="yes"
7532     TARGET_ARCH=mips
7533     echo "TARGET_ABI_MIPSO32=y" >> $config_target_mak
7534     TARGET_SYSTBL_ABI=o32
7535     TARGET_SYSTBL=syscall_o32.tbl
7536   ;;
7537   mipsn32|mipsn32el)
7538     mttcg="yes"
7539     TARGET_ARCH=mips64
7540     TARGET_BASE_ARCH=mips
7541     echo "TARGET_ABI_MIPSN32=y" >> $config_target_mak
7542     echo "TARGET_ABI32=y" >> $config_target_mak
7543     TARGET_SYSTBL_ABI=n32
7544     TARGET_SYSTBL=syscall_n32.tbl
7545   ;;
7546   mips64|mips64el)
7547     mttcg="no"
7548     TARGET_ARCH=mips64
7549     TARGET_BASE_ARCH=mips
7550     echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
7551     TARGET_SYSTBL_ABI=n64
7552     TARGET_SYSTBL=syscall_n64.tbl
7553   ;;
7554   moxie)
7555   ;;
7556   nios2)
7557   ;;
7558   or1k)
7559     TARGET_ARCH=openrisc
7560     TARGET_BASE_ARCH=openrisc
7561   ;;
7562   ppc)
7563     gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
7564     TARGET_SYSTBL_ABI=common,nospu,32
7565   ;;
7566   ppc64)
7567     TARGET_BASE_ARCH=ppc
7568     TARGET_ABI_DIR=ppc
7569     TARGET_SYSTBL_ABI=common,nospu,64
7570     mttcg=yes
7571     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7572   ;;
7573   ppc64le)
7574     TARGET_ARCH=ppc64
7575     TARGET_BASE_ARCH=ppc
7576     TARGET_ABI_DIR=ppc
7577     TARGET_SYSTBL_ABI=common,nospu,64
7578     mttcg=yes
7579     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7580   ;;
7581   ppc64abi32)
7582     TARGET_ARCH=ppc64
7583     TARGET_BASE_ARCH=ppc
7584     TARGET_ABI_DIR=ppc
7585     TARGET_SYSTBL_ABI=common,nospu,32
7586     echo "TARGET_ABI32=y" >> $config_target_mak
7587     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7588   ;;
7589   riscv32)
7590     TARGET_BASE_ARCH=riscv
7591     TARGET_ABI_DIR=riscv
7592     mttcg=yes
7593     gdb_xml_files="riscv-32bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-32bit-csr.xml riscv-32bit-virtual.xml"
7594   ;;
7595   riscv64)
7596     TARGET_BASE_ARCH=riscv
7597     TARGET_ABI_DIR=riscv
7598     mttcg=yes
7599     gdb_xml_files="riscv-64bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-64bit-csr.xml riscv-64bit-virtual.xml"
7600   ;;
7601   rx)
7602     TARGET_ARCH=rx
7603     bflt="yes"
7604     target_compiler=$cross_cc_rx
7605     gdb_xml_files="rx-core.xml"
7606   ;;
7607   sh4|sh4eb)
7608     TARGET_ARCH=sh4
7609     TARGET_SYSTBL_ABI=common
7610     bflt="yes"
7611   ;;
7612   sparc)
7613     TARGET_SYSTBL_ABI=common,32
7614   ;;
7615   sparc64)
7616     TARGET_BASE_ARCH=sparc
7617     TARGET_SYSTBL_ABI=common,64
7618   ;;
7619   sparc32plus)
7620     TARGET_ARCH=sparc64
7621     TARGET_BASE_ARCH=sparc
7622     TARGET_ABI_DIR=sparc
7623     TARGET_SYSTBL_ABI=common,32
7624     echo "TARGET_ABI32=y" >> $config_target_mak
7625   ;;
7626   s390x)
7627     TARGET_SYSTBL_ABI=common,64
7628     mttcg=yes
7629     gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml"
7630   ;;
7631   tilegx)
7632   ;;
7633   tricore)
7634   ;;
7635   unicore32)
7636   ;;
7637   xtensa|xtensaeb)
7638     TARGET_ARCH=xtensa
7639     TARGET_SYSTBL_ABI=common
7640     bflt="yes"
7641     mttcg="yes"
7642   ;;
7643   *)
7644     error_exit "Unsupported target CPU"
7645   ;;
7646 esac
7647 # TARGET_BASE_ARCH needs to be defined after TARGET_ARCH
7648 if [ "$TARGET_BASE_ARCH" = "" ]; then
7649   TARGET_BASE_ARCH=$TARGET_ARCH
7650 fi
7651 if [ "$TARGET_SYSTBL_ABI" != "" ] && [ "$TARGET_SYSTBL" = "" ]; then
7652   TARGET_SYSTBL=syscall.tbl
7653 fi
7654
7655 upper() {
7656     echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
7657 }
7658
7659 target_arch_name="$(upper $TARGET_ARCH)"
7660 echo "TARGET_$target_arch_name=y" >> $config_target_mak
7661 echo "TARGET_NAME=$target_name" >> $config_target_mak
7662 echo "TARGET_BASE_ARCH=$TARGET_BASE_ARCH" >> $config_target_mak
7663 if [ "$TARGET_ABI_DIR" = "" ]; then
7664   TARGET_ABI_DIR=$TARGET_ARCH
7665 fi
7666 echo "TARGET_ABI_DIR=$TARGET_ABI_DIR" >> $config_target_mak
7667 if [ "$HOST_VARIANT_DIR" != "" ]; then
7668     echo "HOST_VARIANT_DIR=$HOST_VARIANT_DIR" >> $config_target_mak
7669 fi
7670 if [ "$TARGET_SYSTBL_ABI" != "" ]; then
7671     echo "TARGET_SYSTBL_ABI=$TARGET_SYSTBL_ABI" >> $config_target_mak
7672     echo "TARGET_SYSTBL=$TARGET_SYSTBL" >> $config_target_mak
7673 fi
7674
7675 if supported_xen_target $target; then
7676     echo "CONFIG_XEN=y" >> $config_target_mak
7677     if test "$xen_pci_passthrough" = yes; then
7678         echo "CONFIG_XEN_PCI_PASSTHROUGH=y" >> "$config_target_mak"
7679     fi
7680 fi
7681 if supported_kvm_target $target; then
7682     echo "CONFIG_KVM=y" >> $config_target_mak
7683 fi
7684 if supported_hax_target $target; then
7685     echo "CONFIG_HAX=y" >> $config_target_mak
7686 fi
7687 if supported_hvf_target $target; then
7688     echo "CONFIG_HVF=y" >> $config_target_mak
7689 fi
7690 if supported_whpx_target $target; then
7691     echo "CONFIG_WHPX=y" >> $config_target_mak
7692 fi
7693 if test "$target_aligned_only" = "yes" ; then
7694   echo "TARGET_ALIGNED_ONLY=y" >> $config_target_mak
7695 fi
7696 if test "$target_bigendian" = "yes" ; then
7697   echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
7698 fi
7699 if test "$target_softmmu" = "yes" ; then
7700   echo "CONFIG_SOFTMMU=y" >> $config_target_mak
7701   if test "$mttcg" = "yes" ; then
7702     echo "TARGET_SUPPORTS_MTTCG=y" >> $config_target_mak
7703   fi
7704 fi
7705 if test "$target_user_only" = "yes" ; then
7706   echo "CONFIG_USER_ONLY=y" >> $config_target_mak
7707   echo "CONFIG_QEMU_INTERP_PREFIX=\"$interp_prefix1\"" >> $config_target_mak
7708   symlink "../qemu-$target_name" "$target_dir/qemu-$target_name"
7709 else
7710   symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name"
7711 fi
7712 if test "$target_linux_user" = "yes" ; then
7713   echo "CONFIG_LINUX_USER=y" >> $config_target_mak
7714 fi
7715 list=""
7716 if test ! -z "$gdb_xml_files" ; then
7717   for x in $gdb_xml_files; do
7718     list="$list gdb-xml/$x"
7719   done
7720   echo "TARGET_XML_FILES=$list" >> $config_target_mak
7721 fi
7722
7723 if test "$target_user_only" = "yes" && test "$bflt" = "yes"; then
7724   echo "TARGET_HAS_BFLT=y" >> $config_target_mak
7725 fi
7726 if test "$target_bsd_user" = "yes" ; then
7727   echo "CONFIG_BSD_USER=y" >> $config_target_mak
7728 fi
7729
7730 done # for target in $targets
7731
7732 if [ "$fdt" = "git" ]; then
7733   subdirs="$subdirs dtc"
7734 fi
7735 if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
7736   subdirs="$subdirs capstone"
7737 fi
7738 echo "SUBDIRS=$subdirs" >> $config_host_mak
7739 if test -n "$LIBCAPSTONE"; then
7740   echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
7741 fi
7742
7743 if test "$numa" = "yes"; then
7744   echo "CONFIG_NUMA=y" >> $config_host_mak
7745   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
7746 fi
7747
7748 if test "$ccache_cpp2" = "yes"; then
7749   echo "export CCACHE_CPP2=y" >> $config_host_mak
7750 fi
7751
7752 if test "$safe_stack" = "yes"; then
7753   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
7754 fi
7755
7756 # If we're using a separate build tree, set it up now.
7757 # DIRS are directories which we simply mkdir in the build tree;
7758 # LINKS are things to symlink back into the source tree
7759 # (these can be both files and directories).
7760 # Caution: do not add files or directories here using wildcards. This
7761 # will result in problems later if a new file matching the wildcard is
7762 # added to the source tree -- nothing will cause configure to be rerun
7763 # so the build tree will be missing the link back to the new file, and
7764 # tests might fail. Prefer to keep the relevant files in their own
7765 # directory and symlink the directory instead.
7766 # UNLINK is used to remove symlinks from older development versions
7767 # that might get into the way when doing "git update" without doing
7768 # a "make distclean" in between.
7769 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
7770 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
7771 DIRS="$DIRS docs docs/interop fsdev scsi"
7772 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
7773 DIRS="$DIRS roms/seabios"
7774 DIRS="$DIRS contrib/plugins/"
7775 LINKS="Makefile"
7776 LINKS="$LINKS tests/tcg/lm32/Makefile"
7777 LINKS="$LINKS tests/tcg/Makefile.target"
7778 LINKS="$LINKS pc-bios/optionrom/Makefile"
7779 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
7780 LINKS="$LINKS roms/seabios/Makefile"
7781 LINKS="$LINKS pc-bios/qemu-icon.bmp"
7782 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
7783 LINKS="$LINKS tests/acceptance tests/data"
7784 LINKS="$LINKS tests/qemu-iotests/check"
7785 LINKS="$LINKS python"
7786 LINKS="$LINKS contrib/plugins/Makefile "
7787 UNLINK="pc-bios/keymaps"
7788 for bios_file in \
7789     $source_path/pc-bios/*.bin \
7790     $source_path/pc-bios/*.elf \
7791     $source_path/pc-bios/*.lid \
7792     $source_path/pc-bios/*.rom \
7793     $source_path/pc-bios/*.dtb \
7794     $source_path/pc-bios/*.img \
7795     $source_path/pc-bios/openbios-* \
7796     $source_path/pc-bios/u-boot.* \
7797     $source_path/pc-bios/edk2-*.fd.bz2 \
7798     $source_path/pc-bios/palcode-*
7799 do
7800     LINKS="$LINKS pc-bios/$(basename $bios_file)"
7801 done
7802 mkdir -p $DIRS
7803 for f in $LINKS ; do
7804     if [ -e "$source_path/$f" ]; then
7805         symlink "$source_path/$f" "$f"
7806     fi
7807 done
7808 for f in $UNLINK ; do
7809     if [ -L "$f" ]; then
7810         rm -f "$f"
7811     fi
7812 done
7813
7814 (for i in $cross_cc_vars; do
7815   export $i
7816 done
7817 export target_list source_path use_containers
7818 $source_path/tests/tcg/configure.sh)
7819
7820 # temporary config to build submodules
7821 for rom in seabios; do
7822     config_mak=roms/$rom/config.mak
7823     echo "# Automatically generated by configure - do not modify" > $config_mak
7824     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
7825     echo "AS=$as" >> $config_mak
7826     echo "CCAS=$ccas" >> $config_mak
7827     echo "CC=$cc" >> $config_mak
7828     echo "BCC=bcc" >> $config_mak
7829     echo "CPP=$cpp" >> $config_mak
7830     echo "OBJCOPY=objcopy" >> $config_mak
7831     echo "IASL=$iasl" >> $config_mak
7832     echo "LD=$ld" >> $config_mak
7833     echo "RANLIB=$ranlib" >> $config_mak
7834 done
7835
7836 # set up qemu-iotests in this build directory
7837 iotests_common_env="tests/qemu-iotests/common.env"
7838
7839 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
7840 echo >> "$iotests_common_env"
7841 echo "export PYTHON='$python'" >> "$iotests_common_env"
7842
7843 if test "$skip_meson" = no; then
7844 cross="config-meson.cross.new"
7845 meson_quote() {
7846     echo "['$(echo $* | sed "s/ /','/g")']"
7847 }
7848
7849 echo "# Automatically generated by configure - do not modify" > $cross
7850 echo "[properties]" >> $cross
7851 test -z "$cxx" && echo "link_language = 'c'" >> $cross
7852 echo "[binaries]" >> $cross
7853 echo "c = $(meson_quote $cc)" >> $cross
7854 test -n "$cxx" && echo "cpp = $(meson_quote $cxx)" >> $cross
7855 echo "ar = $(meson_quote $ar)" >> $cross
7856 echo "nm = $(meson_quote $nm)" >> $cross
7857 echo "pkgconfig = $(meson_quote $pkg_config_exe)" >> $cross
7858 echo "ranlib = $(meson_quote $ranlib)" >> $cross
7859 if has $sdl2_config; then
7860   echo "sdl2-config = $(meson_quote $sdl2_config)" >> $cross
7861 fi
7862 echo "strip = $(meson_quote $strip)" >> $cross
7863 echo "windres = $(meson_quote $windres)" >> $cross
7864 if test -n "$cross_prefix"; then
7865     cross_arg="--cross-file config-meson.cross"
7866     # Hack: Meson expects an absolute path for the *build* machine
7867     # for the prefix, so add a slash in front of a Windows path that
7868     # includes a drive letter.
7869     #
7870     # See https://github.com/mesonbuild/meson/issues/7577.
7871     echo "[host_machine]" >> $cross
7872     if test "$mingw32" = "yes" ; then
7873         echo "system = 'windows'" >> $cross
7874         case $prefix in
7875             ?:*) pre_prefix=/ ;;
7876         esac
7877     fi
7878     if test "$linux" = "yes" ; then
7879         echo "system = 'linux'" >> $cross
7880     fi
7881     case "$ARCH" in
7882         i386|x86_64)
7883             echo "cpu_family = 'x86'" >> $cross
7884             ;;
7885         ppc64le)
7886             echo "cpu_family = 'ppc64'" >> $cross
7887             ;;
7888         *)
7889             echo "cpu_family = '$ARCH'" >> $cross
7890             ;;
7891     esac
7892     echo "cpu = '$cpu'" >> $cross
7893     if test "$bigendian" = "yes" ; then
7894         echo "endian = 'big'" >> $cross
7895     else
7896         echo "endian = 'little'" >> $cross
7897     fi
7898 else
7899     cross_arg="--native-file config-meson.cross"
7900 fi
7901 mv $cross config-meson.cross
7902
7903 rm -rf meson-private meson-info meson-logs
7904 NINJA=${ninja:-$PWD/ninjatool} $meson setup \
7905         --prefix "${pre_prefix}$prefix" \
7906         --libdir "${pre_prefix}$libdir" \
7907         --libexecdir "${pre_prefix}$libexecdir" \
7908         --bindir "${pre_prefix}$bindir" \
7909         --includedir "${pre_prefix}$includedir" \
7910         --datadir "${pre_prefix}$datadir" \
7911         --mandir "${pre_prefix}$mandir" \
7912         --sysconfdir "${pre_prefix}$sysconfdir" \
7913         --localstatedir "${pre_prefix}$local_statedir" \
7914         -Ddocdir="${pre_prefix}$docdir" \
7915         -Dqemu_suffix="$qemu_suffix" \
7916         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
7917         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
7918         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
7919         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
7920         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
7921         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
7922         -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
7923         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
7924         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f\
7925         $cross_arg \
7926         "$PWD" "$source_path"
7927
7928 if test "$?" -ne 0 ; then
7929     error_exit "meson setup failed"
7930 fi
7931 touch ninjatool.stamp
7932 fi
7933
7934 if test -n "${deprecated_features}"; then
7935     echo "Warning, deprecated features enabled."
7936     echo "Please see docs/system/deprecated.rst"
7937     echo "  features: ${deprecated_features}"
7938 fi
7939
7940 # Save the configure command line for later reuse.
7941 cat <<EOD >config.status
7942 #!/bin/sh
7943 # Generated by configure.
7944 # Run this file to recreate the current configuration.
7945 # Compiler output produced by configure, useful for debugging
7946 # configure, is in config.log if it exists.
7947 EOD
7948
7949 preserve_env() {
7950     envname=$1
7951
7952     eval envval=\$$envname
7953
7954     if test -n "$envval"
7955     then
7956         echo "$envname='$envval'" >> config.status
7957         echo "export $envname" >> config.status
7958     else
7959         echo "unset $envname" >> config.status
7960     fi
7961 }
7962
7963 # Preserve various env variables that influence what
7964 # features/build target configure will detect
7965 preserve_env AR
7966 preserve_env AS
7967 preserve_env CC
7968 preserve_env CPP
7969 preserve_env CXX
7970 preserve_env INSTALL
7971 preserve_env LD
7972 preserve_env LD_LIBRARY_PATH
7973 preserve_env LIBTOOL
7974 preserve_env MAKE
7975 preserve_env NM
7976 preserve_env OBJCOPY
7977 preserve_env PATH
7978 preserve_env PKG_CONFIG
7979 preserve_env PKG_CONFIG_LIBDIR
7980 preserve_env PKG_CONFIG_PATH
7981 preserve_env PYTHON
7982 preserve_env SDL2_CONFIG
7983 preserve_env SMBD
7984 preserve_env STRIP
7985 preserve_env WINDRES
7986
7987 printf "exec" >>config.status
7988 for i in "$0" "$@"; do
7989   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
7990 done
7991 echo ' "$@"' >>config.status
7992 chmod +x config.status
7993
7994 rm -r "$TMPDIR1"