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 quote_sh() {
  93     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  94 }
  95
  96 print_error() {
  97     (echo
  98     echo "ERROR: $1"
  99     while test -n "$2"; do
 100         echo "       $2"
 101         shift
 102     done
 103     echo) >&2
 104 }
 105
 106 error_exit() {
 107     print_error "$@"
 108     exit 1
 109 }
 110
 111 do_compiler() {
 112     # Run the compiler, capturing its output to the log. First argument
 113     # is compiler binary to execute.
 114     local compiler="$1"
 115     shift
 116     if test -n "$BASH_VERSION"; then eval '
 117         echo >>config.log "
 118 funcs: ${FUNCNAME[*]}
 119 lines: ${BASH_LINENO[*]}"
 120     '; fi
 121     echo $compiler "$@" >> config.log
 122     $compiler "$@" >> config.log 2>&1 || return $?
 123     # Test passed. If this is an --enable-werror build, rerun
 124     # the test with -Werror and bail out if it fails. This
 125     # makes warning-generating-errors in configure test code
 126     # obvious to developers.
 127     if test "$werror" != "yes"; then
 128         return 0
 129     fi
 130     # Don't bother rerunning the compile if we were already using -Werror
 131     case "$*" in
 132         *-Werror*)
 133            return 0
 134         ;;
 135     esac
 136     echo $compiler -Werror "$@" >> config.log
 137     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 138     error_exit "configure test passed without -Werror but failed with -Werror." \
 139         "This is probably a bug in the configure script. The failing command" \
 140         "will be at the bottom of config.log." \
 141         "You can run configure with --disable-werror to bypass this check."
 142 }
 143
 144 do_cc() {
 145     do_compiler "$cc" "$@"
 146 }
 147
 148 do_cxx() {
 149     do_compiler "$cxx" "$@"
 150 }
 151
 152 # Append $2 to the variable named $1, with space separation
 153 add_to() {
 154     eval $1=\${$1:+\"\$$1 \"}\$2
 155 }
 156
 157 update_cxxflags() {
 158     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 159     # options which some versions of GCC's C++ compiler complain about
 160     # because they only make sense for C programs.
 161     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 162     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu99/-std=gnu++11/)
 163     for arg in $QEMU_CFLAGS; do
 164         case $arg in
 165             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 166             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 167                 ;;
 168             *)
 169                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 170                 ;;
 171         esac
 172     done
 173 }
 174
 175 compile_object() {
 176   local_cflags="$1"
 177   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 178 }
 179
 180 compile_prog() {
 181   local_cflags="$1"
 182   local_ldflags="$2"
 183   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 184       $LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 185 }
 186
 187 # symbolically link $1 to $2.  Portable version of "ln -sf".
 188 symlink() {
 189   rm -rf "$2"
 190   mkdir -p "$(dirname "$2")"
 191   ln -s "$1" "$2"
 192 }
 193
 194 # check whether a command is available to this shell (may be either an
 195 # executable or a builtin)
 196 has() {
 197     type "$1" >/dev/null 2>&1
 198 }
 199
 200 version_ge () {
 201     local_ver1=`echo $1 | tr . ' '`
 202     local_ver2=`echo $2 | tr . ' '`
 203     while true; do
 204         set x $local_ver1
 205         local_first=${2-0}
 206         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 207         shift ${2:+2}
 208         local_ver1=$*
 209         set x $local_ver2
 210         # the second argument finished, the first must be greater or equal
 211         test $# = 1 && return 0
 212         test $local_first -lt $2 && return 1
 213         test $local_first -gt $2 && return 0
 214         shift ${2:+2}
 215         local_ver2=$*
 216     done
 217 }
 218
 219 have_backend () {
 220     echo "$trace_backends" | grep "$1" >/dev/null
 221 }
 222
 223 glob() {
 224     eval test -z '"${1#'"$2"'}"'
 225 }
 226
 227 ld_has() {
 228     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 229 }
 230
 231 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 232 then
 233   error_exit "main directory cannot contain spaces nor colons"
 234 fi
 235
 236 # default parameters
 237 cpu=""
 238 iasl="iasl"
 239 interp_prefix="/usr/gnemul/qemu-%M"
 240 static="no"
 241 cross_prefix=""
 242 audio_drv_list=""
 243 block_drv_rw_whitelist=""
 244 block_drv_ro_whitelist=""
 245 host_cc="cc"
 246 audio_win_int=""
 247 libs_qga=""
 248 debug_info="yes"
 249 lto="false"
 250 stack_protector=""
 251 safe_stack=""
 252 use_containers="yes"
 253 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 254
 255 if test -e "$source_path/.git"
 256 then
 257     git_update=yes
 258     git_submodules="ui/keycodemapdb"
 259     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 260     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 261 else
 262     git_update=no
 263     git_submodules=""
 264
 265     if ! test -f "$source_path/ui/keycodemapdb/README"
 266     then
 267         echo
 268         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 269         echo
 270         echo "This is not a GIT checkout but module content appears to"
 271         echo "be missing. Do not use 'git archive' or GitHub download links"
 272         echo "to acquire QEMU source archives. Non-GIT builds are only"
 273         echo "supported with source archives linked from:"
 274         echo
 275         echo "  https://www.qemu.org/download/#source"
 276         echo
 277         echo "Developers working with GIT can use scripts/archive-source.sh"
 278         echo "if they need to create valid source archives."
 279         echo
 280         exit 1
 281     fi
 282 fi
 283 git="git"
 284
 285 # Don't accept a target_list environment variable.
 286 unset target_list
 287 unset target_list_exclude
 288
 289 # Default value for a variable defining feature "foo".
 290 #  * foo="no"  feature will only be used if --enable-foo arg is given
 291 #  * foo=""    feature will be searched for, and if found, will be used
 292 #              unless --disable-foo is given
 293 #  * foo="yes" this value will only be set by --enable-foo flag.
 294 #              feature will searched for,
 295 #              if not found, configure exits with error
 296 #
 297 # Always add --enable-foo and --disable-foo command line args.
 298 # Distributions want to ensure that several features are compiled in, and it
 299 # is impossible without a --enable-foo that exits if a feature is not found.
 300
 301 default_feature=""
 302 # parse CC options second
 303 for opt do
 304   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 305   case "$opt" in
 306       --without-default-features)
 307           default_feature="no"
 308   ;;
 309   esac
 310 done
 311
 312 brlapi="auto"
 313 curl="auto"
 314 iconv="auto"
 315 curses="auto"
 316 docs="auto"
 317 fdt="auto"
 318 netmap="no"
 319 sdl="auto"
 320 sdl_image="auto"
 321 virtiofsd="auto"
 322 virtfs="auto"
 323 libudev="auto"
 324 mpath="auto"
 325 vnc="enabled"
 326 sparse="auto"
 327 vde="$default_feature"
 328 vnc_sasl="auto"
 329 vnc_jpeg="auto"
 330 vnc_png="auto"
 331 xkbcommon="auto"
 332 xen="$default_feature"
 333 xen_ctrl_version="$default_feature"
 334 xen_pci_passthrough="auto"
 335 linux_aio="$default_feature"
 336 linux_io_uring="$default_feature"
 337 cap_ng="auto"
 338 attr="auto"
 339 xfs="$default_feature"
 340 tcg="enabled"
 341 membarrier="$default_feature"
 342 vhost_net="$default_feature"
 343 vhost_crypto="$default_feature"
 344 vhost_scsi="$default_feature"
 345 vhost_vsock="$default_feature"
 346 vhost_user="no"
 347 vhost_user_blk_server="auto"
 348 vhost_user_fs="$default_feature"
 349 kvm="auto"
 350 hax="auto"
 351 hvf="auto"
 352 whpx="auto"
 353 rdma="$default_feature"
 354 pvrdma="$default_feature"
 355 gprof="no"
 356 debug_tcg="no"
 357 debug="no"
 358 sanitizers="no"
 359 tsan="no"
 360 fortify_source="$default_feature"
 361 strip_opt="yes"
 362 tcg_interpreter="no"
 363 bigendian="no"
 364 mingw32="no"
 365 gcov="no"
 366 EXESUF="$default_feature"
 367 HOST_DSOSUF=".so"
 368 modules="no"
 369 module_upgrades="no"
 370 prefix="/usr/local"
 371 qemu_suffix="qemu"
 372 slirp="auto"
 373 oss_lib=""
 374 bsd="no"
 375 linux="no"
 376 solaris="no"
 377 profiler="no"
 378 cocoa="auto"
 379 softmmu="yes"
 380 linux_user="no"
 381 bsd_user="no"
 382 blobs="true"
 383 pkgversion=""
 384 pie=""
 385 qom_cast_debug="yes"
 386 trace_backends="log"
 387 trace_file="trace"
 388 spice="$default_feature"
 389 rbd="auto"
 390 smartcard="$default_feature"
 391 u2f="auto"
 392 libusb="$default_feature"
 393 usb_redir="$default_feature"
 394 opengl="$default_feature"
 395 opengl_dmabuf="no"
 396 cpuid_h="no"
 397 avx2_opt="$default_feature"
 398 capstone="auto"
 399 lzo="auto"
 400 snappy="auto"
 401 bzip2="auto"
 402 lzfse="auto"
 403 zstd="auto"
 404 guest_agent="$default_feature"
 405 guest_agent_with_vss="no"
 406 guest_agent_ntddscsi="no"
 407 guest_agent_msi="$default_feature"
 408 vss_win32_sdk="$default_feature"
 409 win_sdk="no"
 410 want_tools="$default_feature"
 411 libiscsi="auto"
 412 libnfs="auto"
 413 coroutine=""
 414 coroutine_pool="$default_feature"
 415 debug_stack_usage="no"
 416 crypto_afalg="no"
 417 cfi="false"
 418 cfi_debug="false"
 419 seccomp="auto"
 420 glusterfs="auto"
 421 gtk="auto"
 422 tls_priority="NORMAL"
 423 gnutls="$default_feature"
 424 nettle="$default_feature"
 425 nettle_xts="no"
 426 gcrypt="$default_feature"
 427 gcrypt_hmac="no"
 428 gcrypt_xts="no"
 429 qemu_private_xts="yes"
 430 auth_pam="$default_feature"
 431 vte="$default_feature"
 432 virglrenderer="$default_feature"
 433 tpm="$default_feature"
 434 libssh="$default_feature"
 435 live_block_migration=${default_feature:-yes}
 436 numa="$default_feature"
 437 tcmalloc="no"
 438 jemalloc="no"
 439 replication=${default_feature:-yes}
 440 bochs=${default_feature:-yes}
 441 cloop=${default_feature:-yes}
 442 dmg=${default_feature:-yes}
 443 qcow1=${default_feature:-yes}
 444 vdi=${default_feature:-yes}
 445 vvfat=${default_feature:-yes}
 446 qed=${default_feature:-yes}
 447 parallels=${default_feature:-yes}
 448 sheepdog="no"
 449 libxml2="$default_feature"
 450 debug_mutex="no"
 451 libpmem="$default_feature"
 452 default_devices="true"
 453 plugins="no"
 454 fuzzing="no"
 455 rng_none="no"
 456 secret_keyring="$default_feature"
 457 libdaxctl="$default_feature"
 458 meson=""
 459 ninja=""
 460 skip_meson=no
 461 gettext="auto"
 462 fuse="auto"
 463 fuse_lseek="auto"
 464
 465 malloc_trim="auto"
 466
 467 # parse CC options second
 468 for opt do
 469   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 470   case "$opt" in
 471   --cross-prefix=*) cross_prefix="$optarg"
 472   ;;
 473   --cc=*) CC="$optarg"
 474   ;;
 475   --cxx=*) CXX="$optarg"
 476   ;;
 477   --cpu=*) cpu="$optarg"
 478   ;;
 479   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 480                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 481   ;;
 482   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 483   ;;
 484   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 485                      EXTRA_LDFLAGS="$optarg"
 486   ;;
 487   --enable-debug-info) debug_info="yes"
 488   ;;
 489   --disable-debug-info) debug_info="no"
 490   ;;
 491   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 492   ;;
 493   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 494                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 495                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 496   ;;
 497   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 498                 cc_archs="$cc_archs $cc_arch"
 499                 eval "cross_cc_${cc_arch}=\$optarg"
 500                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 501   ;;
 502   esac
 503 done
 504 # OS specific
 505 # Using uname is really, really broken.  Once we have the right set of checks
 506 # we can eliminate its usage altogether.
 507
 508 # Preferred compiler:
 509 #  ${CC} (if set)
 510 #  ${cross_prefix}gcc (if cross-prefix specified)
 511 #  system compiler
 512 if test -z "${CC}${cross_prefix}"; then
 513   cc="$host_cc"
 514 else
 515   cc="${CC-${cross_prefix}gcc}"
 516 fi
 517
 518 if test -z "${CXX}${cross_prefix}"; then
 519   cxx="c++"
 520 else
 521   cxx="${CXX-${cross_prefix}g++}"
 522 fi
 523
 524 ar="${AR-${cross_prefix}ar}"
 525 as="${AS-${cross_prefix}as}"
 526 ccas="${CCAS-$cc}"
 527 cpp="${CPP-$cc -E}"
 528 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 529 ld="${LD-${cross_prefix}ld}"
 530 ranlib="${RANLIB-${cross_prefix}ranlib}"
 531 nm="${NM-${cross_prefix}nm}"
 532 strip="${STRIP-${cross_prefix}strip}"
 533 windres="${WINDRES-${cross_prefix}windres}"
 534 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 535 query_pkg_config() {
 536     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 537 }
 538 pkg_config=query_pkg_config
 539 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 540
 541 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 542 ARFLAGS="${ARFLAGS-rv}"
 543
 544 # default flags for all hosts
 545 # We use -fwrapv to tell the compiler that we require a C dialect where
 546 # left shift of signed integers is well defined and has the expected
 547 # 2s-complement style results. (Both clang and gcc agree that it
 548 # provides these semantics.)
 549 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 550 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 551 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 552 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 553
 554 # Flags that are needed during configure but later taken care of by Meson
 555 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 556 CONFIGURE_LDFLAGS=
 557
 558
 559 check_define() {
 560 cat > $TMPC <<EOF
 561 #if !defined($1)
 562 #error $1 not defined
 563 #endif
 564 int main(void) { return 0; }
 565 EOF
 566   compile_object
 567 }
 568
 569 check_include() {
 570 cat > $TMPC <<EOF
 571 #include <$1>
 572 int main(void) { return 0; }
 573 EOF
 574   compile_object
 575 }
 576
 577 write_c_skeleton() {
 578     cat > $TMPC <<EOF
 579 int main(void) { return 0; }
 580 EOF
 581 }
 582
 583 write_c_fuzzer_skeleton() {
 584     cat > $TMPC <<EOF
 585 #include <stdint.h>
 586 #include <sys/types.h>
 587 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 588 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 589 EOF
 590 }
 591
 592 if check_define __linux__ ; then
 593   targetos="Linux"
 594 elif check_define _WIN32 ; then
 595   targetos='MINGW32'
 596 elif check_define __OpenBSD__ ; then
 597   targetos='OpenBSD'
 598 elif check_define __sun__ ; then
 599   targetos='SunOS'
 600 elif check_define __HAIKU__ ; then
 601   targetos='Haiku'
 602 elif check_define __FreeBSD__ ; then
 603   targetos='FreeBSD'
 604 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 605   targetos='GNU/kFreeBSD'
 606 elif check_define __DragonFly__ ; then
 607   targetos='DragonFly'
 608 elif check_define __NetBSD__; then
 609   targetos='NetBSD'
 610 elif check_define __APPLE__; then
 611   targetos='Darwin'
 612 else
 613   # This is a fatal error, but don't report it yet, because we
 614   # might be going to just print the --help text, or it might
 615   # be the result of a missing compiler.
 616   targetos='bogus'
 617 fi
 618
 619 # Some host OSes need non-standard checks for which CPU to use.
 620 # Note that these checks are broken for cross-compilation: if you're
 621 # cross-compiling to one of these OSes then you'll need to specify
 622 # the correct CPU with the --cpu option.
 623 case $targetos in
 624 Darwin)
 625   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 626   # run 64-bit userspace code.
 627   # If the user didn't specify a CPU explicitly and the kernel says this is
 628   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 629   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 630     cpu="x86_64"
 631   fi
 632   HOST_DSOSUF=".dylib"
 633   ;;
 634 SunOS)
 635   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 636   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 637     cpu="x86_64"
 638   fi
 639 esac
 640
 641 if test ! -z "$cpu" ; then
 642   # command line argument
 643   :
 644 elif check_define __i386__ ; then
 645   cpu="i386"
 646 elif check_define __x86_64__ ; then
 647   if check_define __ILP32__ ; then
 648     cpu="x32"
 649   else
 650     cpu="x86_64"
 651   fi
 652 elif check_define __sparc__ ; then
 653   if check_define __arch64__ ; then
 654     cpu="sparc64"
 655   else
 656     cpu="sparc"
 657   fi
 658 elif check_define _ARCH_PPC ; then
 659   if check_define _ARCH_PPC64 ; then
 660     if check_define _LITTLE_ENDIAN ; then
 661       cpu="ppc64le"
 662     else
 663       cpu="ppc64"
 664     fi
 665   else
 666     cpu="ppc"
 667   fi
 668 elif check_define __mips__ ; then
 669   cpu="mips"
 670 elif check_define __s390__ ; then
 671   if check_define __s390x__ ; then
 672     cpu="s390x"
 673   else
 674     cpu="s390"
 675   fi
 676 elif check_define __riscv ; then
 677   if check_define _LP64 ; then
 678     cpu="riscv64"
 679   else
 680     cpu="riscv32"
 681   fi
 682 elif check_define __arm__ ; then
 683   cpu="arm"
 684 elif check_define __aarch64__ ; then
 685   cpu="aarch64"
 686 else
 687   cpu=$(uname -m)
 688 fi
 689
 690 ARCH=
 691 # Normalise host CPU name and set ARCH.
 692 # Note that this case should only have supported host CPUs, not guests.
 693 case "$cpu" in
 694   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 695   ;;
 696   ppc64le)
 697     ARCH="ppc64"
 698   ;;
 699   i386|i486|i586|i686|i86pc|BePC)
 700     cpu="i386"
 701   ;;
 702   x86_64|amd64)
 703     cpu="x86_64"
 704   ;;
 705   armv*b|armv*l|arm)
 706     cpu="arm"
 707   ;;
 708   aarch64)
 709     cpu="aarch64"
 710   ;;
 711   mips*)
 712     cpu="mips"
 713   ;;
 714   sparc|sun4[cdmuv])
 715     cpu="sparc"
 716   ;;
 717   *)
 718     # This will result in either an error or falling back to TCI later
 719     ARCH=unknown
 720   ;;
 721 esac
 722 if test -z "$ARCH"; then
 723   ARCH="$cpu"
 724 fi
 725
 726 # OS specific
 727
 728 case $targetos in
 729 MINGW32*)
 730   mingw32="yes"
 731   audio_possible_drivers="dsound sdl"
 732   if check_include dsound.h; then
 733     audio_drv_list="dsound"
 734   else
 735     audio_drv_list=""
 736   fi
 737   supported_os="yes"
 738   pie="no"
 739 ;;
 740 GNU/kFreeBSD)
 741   bsd="yes"
 742   audio_drv_list="oss try-sdl"
 743   audio_possible_drivers="oss sdl pa"
 744 ;;
 745 FreeBSD)
 746   bsd="yes"
 747   make="${MAKE-gmake}"
 748   audio_drv_list="oss try-sdl"
 749   audio_possible_drivers="oss sdl pa"
 750   # needed for kinfo_getvmmap(3) in libutil.h
 751   netmap=""  # enable netmap autodetect
 752 ;;
 753 DragonFly)
 754   bsd="yes"
 755   make="${MAKE-gmake}"
 756   audio_drv_list="oss try-sdl"
 757   audio_possible_drivers="oss sdl pa"
 758 ;;
 759 NetBSD)
 760   bsd="yes"
 761   make="${MAKE-gmake}"
 762   audio_drv_list="oss try-sdl"
 763   audio_possible_drivers="oss sdl"
 764   oss_lib="-lossaudio"
 765 ;;
 766 OpenBSD)
 767   bsd="yes"
 768   make="${MAKE-gmake}"
 769   audio_drv_list="try-sdl"
 770   audio_possible_drivers="sdl"
 771 ;;
 772 Darwin)
 773   bsd="yes"
 774   darwin="yes"
 775   if [ "$cpu" = "x86_64" ] ; then
 776     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 777     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 778   fi
 779   audio_drv_list="coreaudio try-sdl"
 780   audio_possible_drivers="coreaudio sdl"
 781   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 782   # Disable attempts to use ObjectiveC features in os/object.h since they
 783   # won't work when we're compiling with gcc as a C compiler.
 784   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 785 ;;
 786 SunOS)
 787   solaris="yes"
 788   make="${MAKE-gmake}"
 789   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 790   if test -f /usr/include/sys/soundcard.h ; then
 791     audio_drv_list="oss try-sdl"
 792   fi
 793   audio_possible_drivers="oss sdl"
 794 # needed for CMSG_ macros in sys/socket.h
 795   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 796 # needed for TIOCWIN* defines in termios.h
 797   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 798 ;;
 799 Haiku)
 800   haiku="yes"
 801   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 802 ;;
 803 Linux)
 804   audio_drv_list="try-pa oss"
 805   audio_possible_drivers="oss alsa sdl pa"
 806   linux="yes"
 807   linux_user="yes"
 808   vhost_user=${default_feature:-yes}
 809 ;;
 810 esac
 811
 812 if [ "$bsd" = "yes" ] ; then
 813   if [ "$darwin" != "yes" ] ; then
 814     bsd_user="yes"
 815   fi
 816 fi
 817
 818 : ${make=${MAKE-make}}
 819
 820 # We prefer python 3.x. A bare 'python' is traditionally
 821 # python 2.x, but some distros have it as python 3.x, so
 822 # we check that too
 823 python=
 824 explicit_python=no
 825 for binary in "${PYTHON-python3}" python
 826 do
 827     if has "$binary"
 828     then
 829         python=$(command -v "$binary")
 830         break
 831     fi
 832 done
 833
 834
 835 # Check for ancillary tools used in testing
 836 genisoimage=
 837 for binary in genisoimage mkisofs
 838 do
 839     if has $binary
 840     then
 841         genisoimage=$(command -v "$binary")
 842         break
 843     fi
 844 done
 845
 846 : ${smbd=${SMBD-/usr/sbin/smbd}}
 847
 848 # Default objcc to clang if available, otherwise use CC
 849 if has clang; then
 850   objcc=clang
 851 else
 852   objcc="$cc"
 853 fi
 854
 855 if test "$mingw32" = "yes" ; then
 856   EXESUF=".exe"
 857   HOST_DSOSUF=".dll"
 858   # MinGW needs -mthreads for TLS and macro _MT.
 859   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 860   write_c_skeleton;
 861   prefix="/qemu"
 862   qemu_suffix=""
 863   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 864 fi
 865
 866 werror=""
 867
 868 for opt do
 869   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 870   case "$opt" in
 871   --help|-h) show_help=yes
 872   ;;
 873   --version|-V) exec cat $source_path/VERSION
 874   ;;
 875   --prefix=*) prefix="$optarg"
 876   ;;
 877   --interp-prefix=*) interp_prefix="$optarg"
 878   ;;
 879   --cross-prefix=*)
 880   ;;
 881   --cc=*)
 882   ;;
 883   --host-cc=*) host_cc="$optarg"
 884   ;;
 885   --cxx=*)
 886   ;;
 887   --iasl=*) iasl="$optarg"
 888   ;;
 889   --objcc=*) objcc="$optarg"
 890   ;;
 891   --make=*) make="$optarg"
 892   ;;
 893   --install=*)
 894   ;;
 895   --python=*) python="$optarg" ; explicit_python=yes
 896   ;;
 897   --sphinx-build=*) sphinx_build="$optarg"
 898   ;;
 899   --skip-meson) skip_meson=yes
 900   ;;
 901   --meson=*) meson="$optarg"
 902   ;;
 903   --ninja=*) ninja="$optarg"
 904   ;;
 905   --smbd=*) smbd="$optarg"
 906   ;;
 907   --extra-cflags=*)
 908   ;;
 909   --extra-cxxflags=*)
 910   ;;
 911   --extra-ldflags=*)
 912   ;;
 913   --enable-debug-info)
 914   ;;
 915   --disable-debug-info)
 916   ;;
 917   --cross-cc-*)
 918   ;;
 919   --enable-modules)
 920       modules="yes"
 921   ;;
 922   --disable-modules)
 923       modules="no"
 924   ;;
 925   --disable-module-upgrades) module_upgrades="no"
 926   ;;
 927   --enable-module-upgrades) module_upgrades="yes"
 928   ;;
 929   --cpu=*)
 930   ;;
 931   --target-list=*) target_list="$optarg"
 932                    if test "$target_list_exclude"; then
 933                        error_exit "Can't mix --target-list with --target-list-exclude"
 934                    fi
 935   ;;
 936   --target-list-exclude=*) target_list_exclude="$optarg"
 937                    if test "$target_list"; then
 938                        error_exit "Can't mix --target-list-exclude with --target-list"
 939                    fi
 940   ;;
 941   --enable-trace-backends=*) trace_backends="$optarg"
 942   ;;
 943   # XXX: backwards compatibility
 944   --enable-trace-backend=*) trace_backends="$optarg"
 945   ;;
 946   --with-trace-file=*) trace_file="$optarg"
 947   ;;
 948   --with-default-devices) default_devices="true"
 949   ;;
 950   --without-default-devices) default_devices="false"
 951   ;;
 952   --without-default-features) # processed above
 953   ;;
 954   --enable-gprof) gprof="yes"
 955   ;;
 956   --enable-gcov) gcov="yes"
 957   ;;
 958   --static)
 959     static="yes"
 960     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 961   ;;
 962   --mandir=*) mandir="$optarg"
 963   ;;
 964   --bindir=*) bindir="$optarg"
 965   ;;
 966   --libdir=*) libdir="$optarg"
 967   ;;
 968   --libexecdir=*) libexecdir="$optarg"
 969   ;;
 970   --includedir=*) includedir="$optarg"
 971   ;;
 972   --datadir=*) datadir="$optarg"
 973   ;;
 974   --with-suffix=*) qemu_suffix="$optarg"
 975   ;;
 976   --docdir=*) docdir="$optarg"
 977   ;;
 978   --localedir=*) localedir="$optarg"
 979   ;;
 980   --sysconfdir=*) sysconfdir="$optarg"
 981   ;;
 982   --localstatedir=*) local_statedir="$optarg"
 983   ;;
 984   --firmwarepath=*) firmwarepath="$optarg"
 985   ;;
 986   --host=*|--build=*|\
 987   --disable-dependency-tracking|\
 988   --sbindir=*|--sharedstatedir=*|\
 989   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 990   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 991     # These switches are silently ignored, for compatibility with
 992     # autoconf-generated configure scripts. This allows QEMU's
 993     # configure to be used by RPM and similar macros that set
 994     # lots of directory switches by default.
 995   ;;
 996   --disable-sdl) sdl="disabled"
 997   ;;
 998   --enable-sdl) sdl="enabled"
 999   ;;
1000   --disable-sdl-image) sdl_image="disabled"
1001   ;;
1002   --enable-sdl-image) sdl_image="enabled"
1003   ;;
1004   --disable-qom-cast-debug) qom_cast_debug="no"
1005   ;;
1006   --enable-qom-cast-debug) qom_cast_debug="yes"
1007   ;;
1008   --disable-virtfs) virtfs="disabled"
1009   ;;
1010   --enable-virtfs) virtfs="enabled"
1011   ;;
1012   --disable-libudev) libudev="disabled"
1013   ;;
1014   --enable-libudev) libudev="enabled"
1015   ;;
1016   --disable-virtiofsd) virtiofsd="disabled"
1017   ;;
1018   --enable-virtiofsd) virtiofsd="enabled"
1019   ;;
1020   --disable-mpath) mpath="disabled"
1021   ;;
1022   --enable-mpath) mpath="enabled"
1023   ;;
1024   --disable-vnc) vnc="disabled"
1025   ;;
1026   --enable-vnc) vnc="enabled"
1027   ;;
1028   --disable-gettext) gettext="disabled"
1029   ;;
1030   --enable-gettext) gettext="enabled"
1031   ;;
1032   --oss-lib=*) oss_lib="$optarg"
1033   ;;
1034   --audio-drv-list=*) audio_drv_list="$optarg"
1035   ;;
1036   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1037   ;;
1038   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1039   ;;
1040   --enable-debug-tcg) debug_tcg="yes"
1041   ;;
1042   --disable-debug-tcg) debug_tcg="no"
1043   ;;
1044   --enable-debug)
1045       # Enable debugging options that aren't excessively noisy
1046       debug_tcg="yes"
1047       debug_mutex="yes"
1048       debug="yes"
1049       strip_opt="no"
1050       fortify_source="no"
1051   ;;
1052   --enable-sanitizers) sanitizers="yes"
1053   ;;
1054   --disable-sanitizers) sanitizers="no"
1055   ;;
1056   --enable-tsan) tsan="yes"
1057   ;;
1058   --disable-tsan) tsan="no"
1059   ;;
1060   --enable-sparse) sparse="enabled"
1061   ;;
1062   --disable-sparse) sparse="disabled"
1063   ;;
1064   --disable-strip) strip_opt="no"
1065   ;;
1066   --disable-vnc-sasl) vnc_sasl="disabled"
1067   ;;
1068   --enable-vnc-sasl) vnc_sasl="enabled"
1069   ;;
1070   --disable-vnc-jpeg) vnc_jpeg="disabled"
1071   ;;
1072   --enable-vnc-jpeg) vnc_jpeg="enabled"
1073   ;;
1074   --disable-vnc-png) vnc_png="disabled"
1075   ;;
1076   --enable-vnc-png) vnc_png="enabled"
1077   ;;
1078   --disable-slirp) slirp="disabled"
1079   ;;
1080   --enable-slirp) slirp="enabled"
1081   ;;
1082   --enable-slirp=git) slirp="internal"
1083   ;;
1084   --enable-slirp=system) slirp="system"
1085   ;;
1086   --disable-vde) vde="no"
1087   ;;
1088   --enable-vde) vde="yes"
1089   ;;
1090   --disable-netmap) netmap="no"
1091   ;;
1092   --enable-netmap) netmap="yes"
1093   ;;
1094   --disable-xen) xen="disabled"
1095   ;;
1096   --enable-xen) xen="enabled"
1097   ;;
1098   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1099   ;;
1100   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1101   ;;
1102   --disable-brlapi) brlapi="disabled"
1103   ;;
1104   --enable-brlapi) brlapi="enabled"
1105   ;;
1106   --disable-kvm) kvm="disabled"
1107   ;;
1108   --enable-kvm) kvm="enabled"
1109   ;;
1110   --disable-hax) hax="disabled"
1111   ;;
1112   --enable-hax) hax="enabled"
1113   ;;
1114   --disable-hvf) hvf="disabled"
1115   ;;
1116   --enable-hvf) hvf="enabled"
1117   ;;
1118   --disable-whpx) whpx="disabled"
1119   ;;
1120   --enable-whpx) whpx="enabled"
1121   ;;
1122   --disable-tcg-interpreter) tcg_interpreter="no"
1123   ;;
1124   --enable-tcg-interpreter) tcg_interpreter="yes"
1125   ;;
1126   --disable-cap-ng)  cap_ng="disabled"
1127   ;;
1128   --enable-cap-ng) cap_ng="enabled"
1129   ;;
1130   --disable-tcg) tcg="disabled"
1131   ;;
1132   --enable-tcg) tcg="enabled"
1133   ;;
1134   --disable-malloc-trim) malloc_trim="disabled"
1135   ;;
1136   --enable-malloc-trim) malloc_trim="enabled"
1137   ;;
1138   --disable-spice) spice="no"
1139   ;;
1140   --enable-spice) spice="yes"
1141   ;;
1142   --disable-libiscsi) libiscsi="disabled"
1143   ;;
1144   --enable-libiscsi) libiscsi="enabled"
1145   ;;
1146   --disable-libnfs) libnfs="disabled"
1147   ;;
1148   --enable-libnfs) libnfs="enabled"
1149   ;;
1150   --enable-profiler) profiler="yes"
1151   ;;
1152   --disable-cocoa) cocoa="disabled"
1153   ;;
1154   --enable-cocoa) cocoa="enabled"
1155   ;;
1156   --disable-system) softmmu="no"
1157   ;;
1158   --enable-system) softmmu="yes"
1159   ;;
1160   --disable-user)
1161       linux_user="no" ;
1162       bsd_user="no" ;
1163   ;;
1164   --enable-user) ;;
1165   --disable-linux-user) linux_user="no"
1166   ;;
1167   --enable-linux-user) linux_user="yes"
1168   ;;
1169   --disable-bsd-user) bsd_user="no"
1170   ;;
1171   --enable-bsd-user) bsd_user="yes"
1172   ;;
1173   --enable-pie) pie="yes"
1174   ;;
1175   --disable-pie) pie="no"
1176   ;;
1177   --enable-werror) werror="yes"
1178   ;;
1179   --disable-werror) werror="no"
1180   ;;
1181   --enable-lto) lto="true"
1182   ;;
1183   --disable-lto) lto="false"
1184   ;;
1185   --enable-stack-protector) stack_protector="yes"
1186   ;;
1187   --disable-stack-protector) stack_protector="no"
1188   ;;
1189   --enable-safe-stack) safe_stack="yes"
1190   ;;
1191   --disable-safe-stack) safe_stack="no"
1192   ;;
1193   --enable-cfi)
1194       cfi="true";
1195       lto="true";
1196   ;;
1197   --disable-cfi) cfi="false"
1198   ;;
1199   --enable-cfi-debug) cfi_debug="true"
1200   ;;
1201   --disable-cfi-debug) cfi_debug="false"
1202   ;;
1203   --disable-curses) curses="disabled"
1204   ;;
1205   --enable-curses) curses="enabled"
1206   ;;
1207   --disable-iconv) iconv="disabled"
1208   ;;
1209   --enable-iconv) iconv="enabled"
1210   ;;
1211   --disable-curl) curl="disabled"
1212   ;;
1213   --enable-curl) curl="enabled"
1214   ;;
1215   --disable-fdt) fdt="disabled"
1216   ;;
1217   --enable-fdt) fdt="enabled"
1218   ;;
1219   --enable-fdt=git) fdt="internal"
1220   ;;
1221   --enable-fdt=system) fdt="system"
1222   ;;
1223   --disable-linux-aio) linux_aio="no"
1224   ;;
1225   --enable-linux-aio) linux_aio="yes"
1226   ;;
1227   --disable-linux-io-uring) linux_io_uring="no"
1228   ;;
1229   --enable-linux-io-uring) linux_io_uring="yes"
1230   ;;
1231   --disable-attr) attr="disabled"
1232   ;;
1233   --enable-attr) attr="enabled"
1234   ;;
1235   --disable-membarrier) membarrier="no"
1236   ;;
1237   --enable-membarrier) membarrier="yes"
1238   ;;
1239   --disable-blobs) blobs="false"
1240   ;;
1241   --with-pkgversion=*) pkgversion="$optarg"
1242   ;;
1243   --with-coroutine=*) coroutine="$optarg"
1244   ;;
1245   --disable-coroutine-pool) coroutine_pool="no"
1246   ;;
1247   --enable-coroutine-pool) coroutine_pool="yes"
1248   ;;
1249   --enable-debug-stack-usage) debug_stack_usage="yes"
1250   ;;
1251   --enable-crypto-afalg) crypto_afalg="yes"
1252   ;;
1253   --disable-crypto-afalg) crypto_afalg="no"
1254   ;;
1255   --disable-docs) docs="disabled"
1256   ;;
1257   --enable-docs) docs="enabled"
1258   ;;
1259   --disable-vhost-net) vhost_net="no"
1260   ;;
1261   --enable-vhost-net) vhost_net="yes"
1262   ;;
1263   --disable-vhost-crypto) vhost_crypto="no"
1264   ;;
1265   --enable-vhost-crypto) vhost_crypto="yes"
1266   ;;
1267   --disable-vhost-scsi) vhost_scsi="no"
1268   ;;
1269   --enable-vhost-scsi) vhost_scsi="yes"
1270   ;;
1271   --disable-vhost-vsock) vhost_vsock="no"
1272   ;;
1273   --enable-vhost-vsock) vhost_vsock="yes"
1274   ;;
1275   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1276   ;;
1277   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1278   ;;
1279   --disable-vhost-user-fs) vhost_user_fs="no"
1280   ;;
1281   --enable-vhost-user-fs) vhost_user_fs="yes"
1282   ;;
1283   --disable-opengl) opengl="no"
1284   ;;
1285   --enable-opengl) opengl="yes"
1286   ;;
1287   --disable-rbd) rbd="disabled"
1288   ;;
1289   --enable-rbd) rbd="enabled"
1290   ;;
1291   --disable-xfsctl) xfs="no"
1292   ;;
1293   --enable-xfsctl) xfs="yes"
1294   ;;
1295   --disable-smartcard) smartcard="no"
1296   ;;
1297   --enable-smartcard) smartcard="yes"
1298   ;;
1299   --disable-u2f) u2f="disabled"
1300   ;;
1301   --enable-u2f) u2f="enabled"
1302   ;;
1303   --disable-libusb) libusb="no"
1304   ;;
1305   --enable-libusb) libusb="yes"
1306   ;;
1307   --disable-usb-redir) usb_redir="no"
1308   ;;
1309   --enable-usb-redir) usb_redir="yes"
1310   ;;
1311   --disable-zlib-test)
1312   ;;
1313   --disable-lzo) lzo="disabled"
1314   ;;
1315   --enable-lzo) lzo="enabled"
1316   ;;
1317   --disable-snappy) snappy="disabled"
1318   ;;
1319   --enable-snappy) snappy="enabled"
1320   ;;
1321   --disable-bzip2) bzip2="disabled"
1322   ;;
1323   --enable-bzip2) bzip2="enabled"
1324   ;;
1325   --enable-lzfse) lzfse="enabled"
1326   ;;
1327   --disable-lzfse) lzfse="disabled"
1328   ;;
1329   --disable-zstd) zstd="disabled"
1330   ;;
1331   --enable-zstd) zstd="enabled"
1332   ;;
1333   --enable-guest-agent) guest_agent="yes"
1334   ;;
1335   --disable-guest-agent) guest_agent="no"
1336   ;;
1337   --enable-guest-agent-msi) guest_agent_msi="yes"
1338   ;;
1339   --disable-guest-agent-msi) guest_agent_msi="no"
1340   ;;
1341   --with-vss-sdk) vss_win32_sdk=""
1342   ;;
1343   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1344   ;;
1345   --without-vss-sdk) vss_win32_sdk="no"
1346   ;;
1347   --with-win-sdk) win_sdk=""
1348   ;;
1349   --with-win-sdk=*) win_sdk="$optarg"
1350   ;;
1351   --without-win-sdk) win_sdk="no"
1352   ;;
1353   --enable-tools) want_tools="yes"
1354   ;;
1355   --disable-tools) want_tools="no"
1356   ;;
1357   --enable-seccomp) seccomp="enabled"
1358   ;;
1359   --disable-seccomp) seccomp="disabled"
1360   ;;
1361   --disable-glusterfs) glusterfs="disabled"
1362   ;;
1363   --disable-avx2) avx2_opt="no"
1364   ;;
1365   --enable-avx2) avx2_opt="yes"
1366   ;;
1367   --disable-avx512f) avx512f_opt="no"
1368   ;;
1369   --enable-avx512f) avx512f_opt="yes"
1370   ;;
1371
1372   --enable-glusterfs) glusterfs="enabled"
1373   ;;
1374   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1375       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1376   ;;
1377   --enable-vhdx|--disable-vhdx)
1378       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1379   ;;
1380   --enable-uuid|--disable-uuid)
1381       echo "$0: $opt is obsolete, UUID support is always built" >&2
1382   ;;
1383   --disable-gtk) gtk="disabled"
1384   ;;
1385   --enable-gtk) gtk="enabled"
1386   ;;
1387   --tls-priority=*) tls_priority="$optarg"
1388   ;;
1389   --disable-gnutls) gnutls="no"
1390   ;;
1391   --enable-gnutls) gnutls="yes"
1392   ;;
1393   --disable-nettle) nettle="no"
1394   ;;
1395   --enable-nettle) nettle="yes"
1396   ;;
1397   --disable-gcrypt) gcrypt="no"
1398   ;;
1399   --enable-gcrypt) gcrypt="yes"
1400   ;;
1401   --disable-auth-pam) auth_pam="no"
1402   ;;
1403   --enable-auth-pam) auth_pam="yes"
1404   ;;
1405   --enable-rdma) rdma="yes"
1406   ;;
1407   --disable-rdma) rdma="no"
1408   ;;
1409   --enable-pvrdma) pvrdma="yes"
1410   ;;
1411   --disable-pvrdma) pvrdma="no"
1412   ;;
1413   --disable-vte) vte="no"
1414   ;;
1415   --enable-vte) vte="yes"
1416   ;;
1417   --disable-virglrenderer) virglrenderer="no"
1418   ;;
1419   --enable-virglrenderer) virglrenderer="yes"
1420   ;;
1421   --disable-tpm) tpm="no"
1422   ;;
1423   --enable-tpm) tpm="yes"
1424   ;;
1425   --disable-libssh) libssh="no"
1426   ;;
1427   --enable-libssh) libssh="yes"
1428   ;;
1429   --disable-live-block-migration) live_block_migration="no"
1430   ;;
1431   --enable-live-block-migration) live_block_migration="yes"
1432   ;;
1433   --disable-numa) numa="no"
1434   ;;
1435   --enable-numa) numa="yes"
1436   ;;
1437   --disable-libxml2) libxml2="no"
1438   ;;
1439   --enable-libxml2) libxml2="yes"
1440   ;;
1441   --disable-tcmalloc) tcmalloc="no"
1442   ;;
1443   --enable-tcmalloc) tcmalloc="yes"
1444   ;;
1445   --disable-jemalloc) jemalloc="no"
1446   ;;
1447   --enable-jemalloc) jemalloc="yes"
1448   ;;
1449   --disable-replication) replication="no"
1450   ;;
1451   --enable-replication) replication="yes"
1452   ;;
1453   --disable-bochs) bochs="no"
1454   ;;
1455   --enable-bochs) bochs="yes"
1456   ;;
1457   --disable-cloop) cloop="no"
1458   ;;
1459   --enable-cloop) cloop="yes"
1460   ;;
1461   --disable-dmg) dmg="no"
1462   ;;
1463   --enable-dmg) dmg="yes"
1464   ;;
1465   --disable-qcow1) qcow1="no"
1466   ;;
1467   --enable-qcow1) qcow1="yes"
1468   ;;
1469   --disable-vdi) vdi="no"
1470   ;;
1471   --enable-vdi) vdi="yes"
1472   ;;
1473   --disable-vvfat) vvfat="no"
1474   ;;
1475   --enable-vvfat) vvfat="yes"
1476   ;;
1477   --disable-qed) qed="no"
1478   ;;
1479   --enable-qed) qed="yes"
1480   ;;
1481   --disable-parallels) parallels="no"
1482   ;;
1483   --enable-parallels) parallels="yes"
1484   ;;
1485   --disable-sheepdog) sheepdog="no"
1486   ;;
1487   --enable-sheepdog) sheepdog="yes"
1488   ;;
1489   --disable-vhost-user) vhost_user="no"
1490   ;;
1491   --enable-vhost-user) vhost_user="yes"
1492   ;;
1493   --disable-vhost-vdpa) vhost_vdpa="no"
1494   ;;
1495   --enable-vhost-vdpa) vhost_vdpa="yes"
1496   ;;
1497   --disable-vhost-kernel) vhost_kernel="no"
1498   ;;
1499   --enable-vhost-kernel) vhost_kernel="yes"
1500   ;;
1501   --disable-capstone) capstone="disabled"
1502   ;;
1503   --enable-capstone) capstone="enabled"
1504   ;;
1505   --enable-capstone=git) capstone="internal"
1506   ;;
1507   --enable-capstone=system) capstone="system"
1508   ;;
1509   --with-git=*) git="$optarg"
1510   ;;
1511   --enable-git-update) git_update=yes
1512   ;;
1513   --disable-git-update) git_update=no
1514   ;;
1515   --enable-debug-mutex) debug_mutex=yes
1516   ;;
1517   --disable-debug-mutex) debug_mutex=no
1518   ;;
1519   --enable-libpmem) libpmem=yes
1520   ;;
1521   --disable-libpmem) libpmem=no
1522   ;;
1523   --enable-xkbcommon) xkbcommon="enabled"
1524   ;;
1525   --disable-xkbcommon) xkbcommon="disabled"
1526   ;;
1527   --enable-plugins) plugins="yes"
1528   ;;
1529   --disable-plugins) plugins="no"
1530   ;;
1531   --enable-containers) use_containers="yes"
1532   ;;
1533   --disable-containers) use_containers="no"
1534   ;;
1535   --enable-fuzzing) fuzzing=yes
1536   ;;
1537   --disable-fuzzing) fuzzing=no
1538   ;;
1539   --gdb=*) gdb_bin="$optarg"
1540   ;;
1541   --enable-rng-none) rng_none=yes
1542   ;;
1543   --disable-rng-none) rng_none=no
1544   ;;
1545   --enable-keyring) secret_keyring="yes"
1546   ;;
1547   --disable-keyring) secret_keyring="no"
1548   ;;
1549   --enable-libdaxctl) libdaxctl=yes
1550   ;;
1551   --disable-libdaxctl) libdaxctl=no
1552   ;;
1553   --enable-fuse) fuse="enabled"
1554   ;;
1555   --disable-fuse) fuse="disabled"
1556   ;;
1557   --enable-fuse-lseek) fuse_lseek="enabled"
1558   ;;
1559   --disable-fuse-lseek) fuse_lseek="disabled"
1560   ;;
1561   *)
1562       echo "ERROR: unknown option $opt"
1563       echo "Try '$0 --help' for more information"
1564       exit 1
1565   ;;
1566   esac
1567 done
1568
1569 libdir="${libdir:-$prefix/lib}"
1570 libexecdir="${libexecdir:-$prefix/libexec}"
1571 includedir="${includedir:-$prefix/include}"
1572
1573 if test "$mingw32" = "yes" ; then
1574     mandir="$prefix"
1575     datadir="$prefix"
1576     docdir="$prefix"
1577     bindir="$prefix"
1578     sysconfdir="$prefix"
1579     local_statedir="$prefix"
1580 else
1581     mandir="${mandir:-$prefix/share/man}"
1582     datadir="${datadir:-$prefix/share}"
1583     docdir="${docdir:-$prefix/share/doc}"
1584     bindir="${bindir:-$prefix/bin}"
1585     sysconfdir="${sysconfdir:-$prefix/etc}"
1586     local_statedir="${local_statedir:-$prefix/var}"
1587 fi
1588 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1589 localedir="${localedir:-$datadir/locale}"
1590
1591 case "$cpu" in
1592     ppc)
1593            CPU_CFLAGS="-m32"
1594            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1595            ;;
1596     ppc64)
1597            CPU_CFLAGS="-m64"
1598            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1599            ;;
1600     sparc)
1601            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1602            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1603            ;;
1604     sparc64)
1605            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1606            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1607            ;;
1608     s390)
1609            CPU_CFLAGS="-m31"
1610            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1611            ;;
1612     s390x)
1613            CPU_CFLAGS="-m64"
1614            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1615            ;;
1616     i386)
1617            CPU_CFLAGS="-m32"
1618            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1619            ;;
1620     x86_64)
1621            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1622            # If we truly care, we should simply detect this case at
1623            # runtime and generate the fallback to serial emulation.
1624            CPU_CFLAGS="-m64 -mcx16"
1625            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1626            ;;
1627     x32)
1628            CPU_CFLAGS="-mx32"
1629            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1630            ;;
1631     # No special flags required for other host CPUs
1632 esac
1633
1634 eval "cross_cc_${cpu}=\$host_cc"
1635 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1636 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1637
1638 # For user-mode emulation the host arch has to be one we explicitly
1639 # support, even if we're using TCI.
1640 if [ "$ARCH" = "unknown" ]; then
1641   bsd_user="no"
1642   linux_user="no"
1643 fi
1644
1645 default_target_list=""
1646 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
1647 deprecated_features=""
1648 mak_wilds=""
1649
1650 if [ "$softmmu" = "yes" ]; then
1651     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1652 fi
1653 if [ "$linux_user" = "yes" ]; then
1654     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1655 fi
1656 if [ "$bsd_user" = "yes" ]; then
1657     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1658 fi
1659
1660 # If the user doesn't explicitly specify a deprecated target we will
1661 # skip it.
1662 if test -z "$target_list"; then
1663     if test -z "$target_list_exclude"; then
1664         target_list_exclude="$deprecated_targets_list"
1665     else
1666         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1667     fi
1668 fi
1669
1670 for config in $mak_wilds; do
1671     target="$(basename "$config" .mak)"
1672     if echo "$target_list_exclude" | grep -vq "$target"; then
1673         default_target_list="${default_target_list} $target"
1674     fi
1675 done
1676
1677 # Enumerate public trace backends for --help output
1678 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1679
1680 if test x"$show_help" = x"yes" ; then
1681 cat << EOF
1682
1683 Usage: configure [options]
1684 Options: [defaults in brackets after descriptions]
1685
1686 Standard options:
1687   --help                   print this message
1688   --prefix=PREFIX          install in PREFIX [$prefix]
1689   --interp-prefix=PREFIX   where to find shared libraries, etc.
1690                            use %M for cpu name [$interp_prefix]
1691   --target-list=LIST       set target list (default: build all non-deprecated)
1692 $(echo Available targets: $default_target_list | \
1693   fold -s -w 53 | sed -e 's/^/                           /')
1694 $(echo Deprecated targets: $deprecated_targets_list | \
1695   fold -s -w 53 | sed -e 's/^/                           /')
1696   --target-list-exclude=LIST exclude a set of targets from the default target-list
1697
1698 Advanced options (experts only):
1699   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1700   --cc=CC                  use C compiler CC [$cc]
1701   --iasl=IASL              use ACPI compiler IASL [$iasl]
1702   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1703                            build time
1704   --cxx=CXX                use C++ compiler CXX [$cxx]
1705   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1706   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1707   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1708   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1709   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1710   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1711   --make=MAKE              use specified make [$make]
1712   --python=PYTHON          use specified python [$python]
1713   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1714   --meson=MESON            use specified meson [$meson]
1715   --ninja=NINJA            use specified ninja [$ninja]
1716   --smbd=SMBD              use specified smbd [$smbd]
1717   --with-git=GIT           use specified git [$git]
1718   --static                 enable static build [$static]
1719   --mandir=PATH            install man pages in PATH
1720   --datadir=PATH           install firmware in PATH/$qemu_suffix
1721   --localedir=PATH         install translation in PATH/$qemu_suffix
1722   --docdir=PATH            install documentation in PATH/$qemu_suffix
1723   --bindir=PATH            install binaries in PATH
1724   --libdir=PATH            install libraries in PATH
1725   --libexecdir=PATH        install helper binaries in PATH
1726   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1727   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1728   --firmwarepath=PATH      search PATH for firmware files
1729   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1730   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1731   --with-pkgversion=VERS   use specified string as sub-version of the package
1732   --without-default-features default all --enable-* options to "disabled"
1733   --without-default-devices  do not include any device that is not needed to
1734                            start the emulator (only use if you are including
1735                            desired devices in default-configs/devices/)
1736   --enable-debug           enable common debug build options
1737   --enable-sanitizers      enable default sanitizers
1738   --enable-tsan            enable thread sanitizer
1739   --disable-strip          disable stripping binaries
1740   --disable-werror         disable compilation abort on warning
1741   --disable-stack-protector disable compiler-provided stack protection
1742   --audio-drv-list=LIST    set audio drivers list:
1743                            Available drivers: $audio_possible_drivers
1744   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1745   --block-drv-rw-whitelist=L
1746                            set block driver read-write whitelist
1747                            (affects only QEMU, not qemu-img)
1748   --block-drv-ro-whitelist=L
1749                            set block driver read-only whitelist
1750                            (affects only QEMU, not qemu-img)
1751   --enable-trace-backends=B Set trace backend
1752                            Available backends: $trace_backend_list
1753   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1754                            Default:trace-<pid>
1755   --disable-slirp          disable SLIRP userspace network connectivity
1756   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1757   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1758   --oss-lib                path to OSS library
1759   --cpu=CPU                Build for host CPU [$cpu]
1760   --with-coroutine=BACKEND coroutine backend. Supported options:
1761                            ucontext, sigaltstack, windows
1762   --enable-gcov            enable test coverage analysis with gcov
1763   --disable-blobs          disable installing provided firmware blobs
1764   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1765   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1766   --tls-priority           default TLS protocol/cipher priority string
1767   --enable-gprof           QEMU profiling with gprof
1768   --enable-profiler        profiler support
1769   --enable-debug-stack-usage
1770                            track the maximum stack usage of stacks created by qemu_alloc_stack
1771   --enable-plugins
1772                            enable plugins via shared library loading
1773   --disable-containers     don't use containers for cross-building
1774   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1775
1776 Optional features, enabled with --enable-FEATURE and
1777 disabled with --disable-FEATURE, default is enabled if available
1778 (unless built with --without-default-features):
1779
1780   system          all system emulation targets
1781   user            supported user emulation targets
1782   linux-user      all linux usermode emulation targets
1783   bsd-user        all BSD usermode emulation targets
1784   docs            build documentation
1785   guest-agent     build the QEMU Guest Agent
1786   guest-agent-msi build guest agent Windows MSI installation package
1787   pie             Position Independent Executables
1788   modules         modules support (non-Windows)
1789   module-upgrades try to load modules from alternate paths for upgrades
1790   debug-tcg       TCG debugging (default is disabled)
1791   debug-info      debugging information
1792   lto             Enable Link-Time Optimization.
1793   sparse          sparse checker
1794   safe-stack      SafeStack Stack Smash Protection. Depends on
1795                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1796   cfi             Enable Control-Flow Integrity for indirect function calls.
1797                   In case of a cfi violation, QEMU is terminated with SIGILL
1798                   Depends on lto and is incompatible with modules
1799                   Automatically enables Link-Time Optimization (lto)
1800   cfi-debug       In case of a cfi violation, a message containing the line that
1801                   triggered the error is written to stderr. After the error,
1802                   QEMU is still terminated with SIGILL
1803   gnutls          GNUTLS cryptography support
1804   nettle          nettle cryptography support
1805   gcrypt          libgcrypt cryptography support
1806   auth-pam        PAM access control
1807   sdl             SDL UI
1808   sdl-image       SDL Image support for icons
1809   gtk             gtk UI
1810   vte             vte support for the gtk UI
1811   curses          curses UI
1812   iconv           font glyph conversion support
1813   vnc             VNC UI support
1814   vnc-sasl        SASL encryption for VNC server
1815   vnc-jpeg        JPEG lossy compression for VNC server
1816   vnc-png         PNG compression for VNC server
1817   cocoa           Cocoa UI (Mac OS X only)
1818   virtfs          VirtFS
1819   virtiofsd       build virtiofs daemon (virtiofsd)
1820   libudev         Use libudev to enumerate host devices
1821   mpath           Multipath persistent reservation passthrough
1822   xen             xen backend driver support
1823   xen-pci-passthrough    PCI passthrough support for Xen
1824   brlapi          BrlAPI (Braile)
1825   curl            curl connectivity
1826   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1827   fdt             fdt device tree
1828   kvm             KVM acceleration support
1829   hax             HAX acceleration support
1830   hvf             Hypervisor.framework acceleration support
1831   whpx            Windows Hypervisor Platform acceleration support
1832   rdma            Enable RDMA-based migration
1833   pvrdma          Enable PVRDMA support
1834   vde             support for vde network
1835   netmap          support for netmap network
1836   linux-aio       Linux AIO support
1837   linux-io-uring  Linux io_uring support
1838   cap-ng          libcap-ng support
1839   attr            attr and xattr support
1840   vhost-net       vhost-net kernel acceleration support
1841   vhost-vsock     virtio sockets device support
1842   vhost-scsi      vhost-scsi kernel target support
1843   vhost-crypto    vhost-user-crypto backend support
1844   vhost-kernel    vhost kernel backend support
1845   vhost-user      vhost-user backend support
1846   vhost-user-blk-server    vhost-user-blk server support
1847   vhost-vdpa      vhost-vdpa kernel backend support
1848   spice           spice
1849   rbd             rados block device (rbd)
1850   libiscsi        iscsi support
1851   libnfs          nfs support
1852   smartcard       smartcard support (libcacard)
1853   u2f             U2F support (u2f-emu)
1854   libusb          libusb (for usb passthrough)
1855   live-block-migration   Block migration in the main migration stream
1856   usb-redir       usb network redirection support
1857   lzo             support of lzo compression library
1858   snappy          support of snappy compression library
1859   bzip2           support of bzip2 compression library
1860                   (for reading bzip2-compressed dmg images)
1861   lzfse           support of lzfse compression library
1862                   (for reading lzfse-compressed dmg images)
1863   zstd            support for zstd compression library
1864                   (for migration compression and qcow2 cluster compression)
1865   seccomp         seccomp support
1866   coroutine-pool  coroutine freelist (better performance)
1867   glusterfs       GlusterFS backend
1868   tpm             TPM support
1869   libssh          ssh block device support
1870   numa            libnuma support
1871   libxml2         for Parallels image format
1872   tcmalloc        tcmalloc support
1873   jemalloc        jemalloc support
1874   avx2            AVX2 optimization support
1875   avx512f         AVX512F optimization support
1876   replication     replication support
1877   opengl          opengl support
1878   virglrenderer   virgl rendering support
1879   xfsctl          xfsctl support
1880   qom-cast-debug  cast debugging support
1881   tools           build qemu-io, qemu-nbd and qemu-img tools
1882   bochs           bochs image format support
1883   cloop           cloop image format support
1884   dmg             dmg image format support
1885   qcow1           qcow v1 image format support
1886   vdi             vdi image format support
1887   vvfat           vvfat image format support
1888   qed             qed image format support
1889   parallels       parallels image format support
1890   sheepdog        sheepdog block driver support (deprecated)
1891   crypto-afalg    Linux AF_ALG crypto backend driver
1892   capstone        capstone disassembler support
1893   debug-mutex     mutex debugging support
1894   libpmem         libpmem support
1895   xkbcommon       xkbcommon support
1896   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1897   libdaxctl       libdaxctl support
1898   fuse            FUSE block device export
1899   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
1900
1901 NOTE: The object files are built at the place where configure is launched
1902 EOF
1903 exit 0
1904 fi
1905
1906 # Remove old dependency files to make sure that they get properly regenerated
1907 rm -f */config-devices.mak.d
1908
1909 if test -z "$python"
1910 then
1911     error_exit "Python not found. Use --python=/path/to/python"
1912 fi
1913 if ! has "$make"
1914 then
1915     error_exit "GNU make ($make) not found"
1916 fi
1917
1918 # Note that if the Python conditional here evaluates True we will exit
1919 # with status 1 which is a shell 'false' value.
1920 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1921   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1922       "Use --python=/path/to/python to specify a supported Python."
1923 fi
1924
1925 # Preserve python version since some functionality is dependent on it
1926 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)
1927
1928 # Suppress writing compiled files
1929 python="$python -B"
1930
1931 if test -z "$meson"; then
1932     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1933         meson=meson
1934     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1935         meson=git
1936     elif test -e "${source_path}/meson/meson.py" ; then
1937         meson=internal
1938     else
1939         if test "$explicit_python" = yes; then
1940             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1941         else
1942             error_exit "Meson not found.  Use --meson=/path/to/meson"
1943         fi
1944     fi
1945 else
1946     # Meson uses its own Python interpreter to invoke other Python scripts,
1947     # but the user wants to use the one they specified with --python.
1948     #
1949     # We do not want to override the distro Python interpreter (and sometimes
1950     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1951     # just require --meson=git|internal together with --python.
1952     if test "$explicit_python" = yes; then
1953         case "$meson" in
1954             git | internal) ;;
1955             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1956         esac
1957     fi
1958 fi
1959
1960 if test "$meson" = git; then
1961     git_submodules="${git_submodules} meson"
1962 fi
1963
1964 case "$meson" in
1965     git | internal)
1966         meson="$python ${source_path}/meson/meson.py"
1967         ;;
1968     *) meson=$(command -v "$meson") ;;
1969 esac
1970
1971 # Probe for ninja
1972
1973 if test -z "$ninja"; then
1974     for c in ninja ninja-build samu; do
1975         if has $c; then
1976             ninja=$(command -v "$c")
1977             break
1978         fi
1979     done
1980     if test -z "$ninja"; then
1981       error_exit "Cannot find Ninja"
1982     fi
1983 fi
1984
1985 # Check that the C compiler works. Doing this here before testing
1986 # the host CPU ensures that we had a valid CC to autodetect the
1987 # $cpu var (and we should bail right here if that's not the case).
1988 # It also allows the help message to be printed without a CC.
1989 write_c_skeleton;
1990 if compile_object ; then
1991   : C compiler works ok
1992 else
1993     error_exit "\"$cc\" either does not exist or does not work"
1994 fi
1995 if ! compile_prog ; then
1996     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1997 fi
1998
1999 # Consult white-list to determine whether to enable werror
2000 # by default.  Only enable by default for git builds
2001 if test -z "$werror" ; then
2002     if test -e "$source_path/.git" && \
2003         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2004         werror="yes"
2005     else
2006         werror="no"
2007     fi
2008 fi
2009
2010 if test "$targetos" = "bogus"; then
2011     # Now that we know that we're not printing the help and that
2012     # the compiler works (so the results of the check_defines we used
2013     # to identify the OS are reliable), if we didn't recognize the
2014     # host OS we should stop now.
2015     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2016 fi
2017
2018 # Check whether the compiler matches our minimum requirements:
2019 cat > $TMPC << EOF
2020 #if defined(__clang_major__) && defined(__clang_minor__)
2021 # ifdef __apple_build_version__
2022 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
2023 #   error You need at least XCode Clang v5.1 to compile QEMU
2024 #  endif
2025 # else
2026 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
2027 #   error You need at least Clang v3.4 to compile QEMU
2028 #  endif
2029 # endif
2030 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2031 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
2032 #  error You need at least GCC v4.8 to compile QEMU
2033 # endif
2034 #else
2035 # error You either need GCC or Clang to compiler QEMU
2036 #endif
2037 int main (void) { return 0; }
2038 EOF
2039 if ! compile_prog "" "" ; then
2040     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2041 fi
2042
2043 # Accumulate -Wfoo and -Wno-bar separately.
2044 # We will list all of the enable flags first, and the disable flags second.
2045 # Note that we do not add -Werror, because that would enable it for all
2046 # configure tests. If a configure test failed due to -Werror this would
2047 # just silently disable some features, so it's too error prone.
2048
2049 warn_flags=
2050 add_to warn_flags -Wold-style-declaration
2051 add_to warn_flags -Wold-style-definition
2052 add_to warn_flags -Wtype-limits
2053 add_to warn_flags -Wformat-security
2054 add_to warn_flags -Wformat-y2k
2055 add_to warn_flags -Winit-self
2056 add_to warn_flags -Wignored-qualifiers
2057 add_to warn_flags -Wempty-body
2058 add_to warn_flags -Wnested-externs
2059 add_to warn_flags -Wendif-labels
2060 add_to warn_flags -Wexpansion-to-defined
2061 add_to warn_flags -Wimplicit-fallthrough=2
2062
2063 nowarn_flags=
2064 add_to nowarn_flags -Wno-initializer-overrides
2065 add_to nowarn_flags -Wno-missing-include-dirs
2066 add_to nowarn_flags -Wno-shift-negative-value
2067 add_to nowarn_flags -Wno-string-plus-int
2068 add_to nowarn_flags -Wno-typedef-redefinition
2069 add_to nowarn_flags -Wno-tautological-type-limit-compare
2070 add_to nowarn_flags -Wno-psabi
2071
2072 gcc_flags="$warn_flags $nowarn_flags"
2073
2074 cc_has_warning_flag() {
2075     write_c_skeleton;
2076
2077     # Use the positive sense of the flag when testing for -Wno-wombat
2078     # support (gcc will happily accept the -Wno- form of unknown
2079     # warning options).
2080     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2081     compile_prog "-Werror $optflag" ""
2082 }
2083
2084 for flag in $gcc_flags; do
2085     if cc_has_warning_flag $flag ; then
2086         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2087     fi
2088 done
2089
2090 if test "$stack_protector" != "no"; then
2091   cat > $TMPC << EOF
2092 int main(int argc, char *argv[])
2093 {
2094     char arr[64], *p = arr, *c = argv[0];
2095     while (*c) {
2096         *p++ = *c++;
2097     }
2098     return 0;
2099 }
2100 EOF
2101   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2102   sp_on=0
2103   for flag in $gcc_flags; do
2104     # We need to check both a compile and a link, since some compiler
2105     # setups fail only on a .c->.o compile and some only at link time
2106     if compile_object "-Werror $flag" &&
2107        compile_prog "-Werror $flag" ""; then
2108       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2109       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2110       sp_on=1
2111       break
2112     fi
2113   done
2114   if test "$stack_protector" = yes; then
2115     if test $sp_on = 0; then
2116       error_exit "Stack protector not supported"
2117     fi
2118   fi
2119 fi
2120
2121 # Disable -Wmissing-braces on older compilers that warn even for
2122 # the "universal" C zero initializer {0}.
2123 cat > $TMPC << EOF
2124 struct {
2125   int a[2];
2126 } x = {0};
2127 EOF
2128 if compile_object "-Werror" "" ; then
2129   :
2130 else
2131   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2132 fi
2133
2134 # Our module code doesn't support Windows
2135 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2136   error_exit "Modules are not available for Windows"
2137 fi
2138
2139 # module_upgrades is only reasonable if modules are enabled
2140 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2141   error_exit "Can't enable module-upgrades as Modules are not enabled"
2142 fi
2143
2144 # Static linking is not possible with modules or PIE
2145 if test "$static" = "yes" ; then
2146   if test "$modules" = "yes" ; then
2147     error_exit "static and modules are mutually incompatible"
2148   fi
2149 fi
2150
2151 # Unconditional check for compiler __thread support
2152   cat > $TMPC << EOF
2153 static __thread int tls_var;
2154 int main(void) { return tls_var; }
2155 EOF
2156
2157 if ! compile_prog "-Werror" "" ; then
2158     error_exit "Your compiler does not support the __thread specifier for " \
2159         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2160 fi
2161
2162 cat > $TMPC << EOF
2163
2164 #ifdef __linux__
2165 #  define THREAD __thread
2166 #else
2167 #  define THREAD
2168 #endif
2169 static THREAD int tls_var;
2170 int main(void) { return tls_var; }
2171 EOF
2172
2173 # Check we support --no-pie first; we will need this for building ROMs.
2174 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2175   CFLAGS_NOPIE="-fno-pie"
2176 fi
2177
2178 if test "$static" = "yes"; then
2179   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2180     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2181     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2182     pie="yes"
2183   elif test "$pie" = "yes"; then
2184     error_exit "-static-pie not available due to missing toolchain support"
2185   else
2186     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2187     pie="no"
2188   fi
2189 elif test "$pie" = "no"; then
2190   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2191 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2192   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2193   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2194   pie="yes"
2195 elif test "$pie" = "yes"; then
2196   error_exit "PIE not available due to missing toolchain support"
2197 else
2198   echo "Disabling PIE due to missing toolchain support"
2199   pie="no"
2200 fi
2201
2202 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2203 # The combination is known as "full relro", because .got.plt is read-only too.
2204 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2205   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2206 fi
2207
2208 ##########################################
2209 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2210 # use i686 as default anyway, but for those that don't, an explicit
2211 # specification is necessary
2212
2213 if test "$cpu" = "i386"; then
2214   cat > $TMPC << EOF
2215 static int sfaa(int *ptr)
2216 {
2217   return __sync_fetch_and_and(ptr, 0);
2218 }
2219
2220 int main(void)
2221 {
2222   int val = 42;
2223   val = __sync_val_compare_and_swap(&val, 0, 1);
2224   sfaa(&val);
2225   return val;
2226 }
2227 EOF
2228   if ! compile_prog "" "" ; then
2229     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2230   fi
2231 fi
2232
2233 #########################################
2234 # Solaris specific configure tool chain decisions
2235
2236 if test "$solaris" = "yes" ; then
2237   if has ar; then
2238     :
2239   else
2240     if test -f /usr/ccs/bin/ar ; then
2241       error_exit "No path includes ar" \
2242           "Add /usr/ccs/bin to your path and rerun configure"
2243     fi
2244     error_exit "No path includes ar"
2245   fi
2246 fi
2247
2248 if test -z "${target_list+xxx}" ; then
2249     default_targets=yes
2250     for target in $default_target_list; do
2251         target_list="$target_list $target"
2252     done
2253     target_list="${target_list# }"
2254 else
2255     default_targets=no
2256     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2257     for target in $target_list; do
2258         # Check that we recognised the target name; this allows a more
2259         # friendly error message than if we let it fall through.
2260         case " $default_target_list " in
2261             *" $target "*)
2262                 ;;
2263             *)
2264                 error_exit "Unknown target name '$target'"
2265                 ;;
2266         esac
2267     done
2268 fi
2269
2270 for target in $target_list; do
2271     # if a deprecated target is enabled we note it here
2272     if echo "$deprecated_targets_list" | grep -q "$target"; then
2273         add_to deprecated_features $target
2274     fi
2275 done
2276
2277 # see if system emulation was really requested
2278 case " $target_list " in
2279   *"-softmmu "*) softmmu=yes
2280   ;;
2281   *) softmmu=no
2282   ;;
2283 esac
2284
2285 feature_not_found() {
2286   feature=$1
2287   remedy=$2
2288
2289   error_exit "User requested feature $feature" \
2290       "configure was not able to find it." \
2291       "$remedy"
2292 }
2293
2294 # ---
2295 # big/little endian test
2296 cat > $TMPC << EOF
2297 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2298 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2299 extern int foo(short *, short *);
2300 int main(int argc, char *argv[]) {
2301     return foo(big_endian, little_endian);
2302 }
2303 EOF
2304
2305 if compile_object ; then
2306     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2307         bigendian="yes"
2308     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2309         bigendian="no"
2310     else
2311         echo big/little test failed
2312     fi
2313 else
2314     echo big/little test failed
2315 fi
2316
2317 ##########################################
2318 # system tools
2319 if test -z "$want_tools"; then
2320     if test "$softmmu" = "no"; then
2321         want_tools=no
2322     else
2323         want_tools=yes
2324     fi
2325 fi
2326
2327 ##########################################
2328 # Some versions of Mac OS X incorrectly define SIZE_MAX
2329 cat > $TMPC << EOF
2330 #include <stdint.h>
2331 #include <stdio.h>
2332 int main(int argc, char *argv[]) {
2333     return printf("%zu", SIZE_MAX);
2334 }
2335 EOF
2336 have_broken_size_max=no
2337 if ! compile_object -Werror ; then
2338     have_broken_size_max=yes
2339 fi
2340
2341 ##########################################
2342 # L2TPV3 probe
2343
2344 cat > $TMPC <<EOF
2345 #include <sys/socket.h>
2346 #include <linux/ip.h>
2347 int main(void) { return sizeof(struct mmsghdr); }
2348 EOF
2349 if compile_prog "" "" ; then
2350   l2tpv3=yes
2351 else
2352   l2tpv3=no
2353 fi
2354
2355 cat > $TMPC <<EOF
2356 #include <sys/mman.h>
2357 int main(int argc, char *argv[]) {
2358     return mlockall(MCL_FUTURE);
2359 }
2360 EOF
2361 if compile_prog "" "" ; then
2362   have_mlockall=yes
2363 else
2364   have_mlockall=no
2365 fi
2366
2367 #########################################
2368 # vhost interdependencies and host support
2369
2370 # vhost backends
2371 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2372   error_exit "vhost-user is only available on Linux"
2373 fi
2374 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2375 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2376   error_exit "vhost-vdpa is only available on Linux"
2377 fi
2378 test "$vhost_kernel" = "" && vhost_kernel=$linux
2379 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2380   error_exit "vhost-kernel is only available on Linux"
2381 fi
2382
2383 # vhost-kernel devices
2384 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2385 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2386   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2387 fi
2388 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2389 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2390   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2391 fi
2392
2393 # vhost-user backends
2394 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2395 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2396   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2397 fi
2398 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2399 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2400   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2401 fi
2402 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2403 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2404   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2405 fi
2406 #vhost-vdpa backends
2407 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2408 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2409   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2410 fi
2411
2412 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2413 if test "$vhost_net" = ""; then
2414   test "$vhost_net_user" = "yes" && vhost_net=yes
2415   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2416   test "$vhost_kernel" = "yes" && vhost_net=yes
2417 fi
2418
2419 ##########################################
2420 # pkg-config probe
2421
2422 if ! has "$pkg_config_exe"; then
2423   error_exit "pkg-config binary '$pkg_config_exe' not found"
2424 fi
2425
2426 ##########################################
2427 # NPTL probe
2428
2429 if test "$linux_user" = "yes"; then
2430   cat > $TMPC <<EOF
2431 #include <sched.h>
2432 #include <linux/futex.h>
2433 int main(void) {
2434 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2435 #error bork
2436 #endif
2437   return 0;
2438 }
2439 EOF
2440   if ! compile_object ; then
2441     feature_not_found "nptl" "Install glibc and linux kernel headers."
2442   fi
2443 fi
2444
2445 ##########################################
2446 # xen probe
2447
2448 if test "$xen" != "disabled" ; then
2449   # Check whether Xen library path is specified via --extra-ldflags to avoid
2450   # overriding this setting with pkg-config output. If not, try pkg-config
2451   # to obtain all needed flags.
2452
2453   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2454      $pkg_config --exists xencontrol ; then
2455     xen_ctrl_version="$(printf '%d%02d%02d' \
2456       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2457     xen=enabled
2458     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2459     xen_pc="$xen_pc xenevtchn xendevicemodel"
2460     if $pkg_config --exists xentoolcore; then
2461       xen_pc="$xen_pc xentoolcore"
2462     fi
2463     xen_cflags="$($pkg_config --cflags $xen_pc)"
2464     xen_libs="$($pkg_config --libs $xen_pc)"
2465   else
2466
2467     xen_libs="-lxenstore -lxenctrl"
2468     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2469
2470     # First we test whether Xen headers and libraries are available.
2471     # If no, we are done and there is no Xen support.
2472     # If yes, more tests are run to detect the Xen version.
2473
2474     # Xen (any)
2475     cat > $TMPC <<EOF
2476 #include <xenctrl.h>
2477 int main(void) {
2478   return 0;
2479 }
2480 EOF
2481     if ! compile_prog "" "$xen_libs" ; then
2482       # Xen not found
2483       if test "$xen" = "enabled" ; then
2484         feature_not_found "xen" "Install xen devel"
2485       fi
2486       xen=disabled
2487
2488     # Xen unstable
2489     elif
2490         cat > $TMPC <<EOF &&
2491 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2492 #define __XEN_TOOLS__
2493 #include <xendevicemodel.h>
2494 #include <xenforeignmemory.h>
2495 int main(void) {
2496   xendevicemodel_handle *xd;
2497   xenforeignmemory_handle *xfmem;
2498
2499   xd = xendevicemodel_open(0, 0);
2500   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2501
2502   xfmem = xenforeignmemory_open(0, 0);
2503   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2504
2505   return 0;
2506 }
2507 EOF
2508         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2509       then
2510       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2511       xen_ctrl_version=41100
2512       xen=enabled
2513     elif
2514         cat > $TMPC <<EOF &&
2515 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2516 #include <xenforeignmemory.h>
2517 #include <xentoolcore.h>
2518 int main(void) {
2519   xenforeignmemory_handle *xfmem;
2520
2521   xfmem = xenforeignmemory_open(0, 0);
2522   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2523   xentoolcore_restrict_all(0);
2524
2525   return 0;
2526 }
2527 EOF
2528         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2529       then
2530       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2531       xen_ctrl_version=41000
2532       xen=enabled
2533     elif
2534         cat > $TMPC <<EOF &&
2535 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2536 #define __XEN_TOOLS__
2537 #include <xendevicemodel.h>
2538 int main(void) {
2539   xendevicemodel_handle *xd;
2540
2541   xd = xendevicemodel_open(0, 0);
2542   xendevicemodel_close(xd);
2543
2544   return 0;
2545 }
2546 EOF
2547         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2548       then
2549       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2550       xen_ctrl_version=40900
2551       xen=enabled
2552     elif
2553         cat > $TMPC <<EOF &&
2554 /*
2555  * If we have stable libs the we don't want the libxc compat
2556  * layers, regardless of what CFLAGS we may have been given.
2557  *
2558  * Also, check if xengnttab_grant_copy_segment_t is defined and
2559  * grant copy operation is implemented.
2560  */
2561 #undef XC_WANT_COMPAT_EVTCHN_API
2562 #undef XC_WANT_COMPAT_GNTTAB_API
2563 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2564 #include <xenctrl.h>
2565 #include <xenstore.h>
2566 #include <xenevtchn.h>
2567 #include <xengnttab.h>
2568 #include <xenforeignmemory.h>
2569 #include <stdint.h>
2570 #include <xen/hvm/hvm_info_table.h>
2571 #if !defined(HVM_MAX_VCPUS)
2572 # error HVM_MAX_VCPUS not defined
2573 #endif
2574 int main(void) {
2575   xc_interface *xc = NULL;
2576   xenforeignmemory_handle *xfmem;
2577   xenevtchn_handle *xe;
2578   xengnttab_handle *xg;
2579   xengnttab_grant_copy_segment_t* seg = NULL;
2580
2581   xs_daemon_open();
2582
2583   xc = xc_interface_open(0, 0, 0);
2584   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2585   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2586   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2587   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2588
2589   xfmem = xenforeignmemory_open(0, 0);
2590   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2591
2592   xe = xenevtchn_open(0, 0);
2593   xenevtchn_fd(xe);
2594
2595   xg = xengnttab_open(0, 0);
2596   xengnttab_grant_copy(xg, 0, seg);
2597
2598   return 0;
2599 }
2600 EOF
2601         compile_prog "" "$xen_libs $xen_stable_libs"
2602       then
2603       xen_ctrl_version=40800
2604       xen=enabled
2605     elif
2606         cat > $TMPC <<EOF &&
2607 /*
2608  * If we have stable libs the we don't want the libxc compat
2609  * layers, regardless of what CFLAGS we may have been given.
2610  */
2611 #undef XC_WANT_COMPAT_EVTCHN_API
2612 #undef XC_WANT_COMPAT_GNTTAB_API
2613 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2614 #include <xenctrl.h>
2615 #include <xenstore.h>
2616 #include <xenevtchn.h>
2617 #include <xengnttab.h>
2618 #include <xenforeignmemory.h>
2619 #include <stdint.h>
2620 #include <xen/hvm/hvm_info_table.h>
2621 #if !defined(HVM_MAX_VCPUS)
2622 # error HVM_MAX_VCPUS not defined
2623 #endif
2624 int main(void) {
2625   xc_interface *xc = NULL;
2626   xenforeignmemory_handle *xfmem;
2627   xenevtchn_handle *xe;
2628   xengnttab_handle *xg;
2629
2630   xs_daemon_open();
2631
2632   xc = xc_interface_open(0, 0, 0);
2633   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2634   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2635   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2636   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2637
2638   xfmem = xenforeignmemory_open(0, 0);
2639   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2640
2641   xe = xenevtchn_open(0, 0);
2642   xenevtchn_fd(xe);
2643
2644   xg = xengnttab_open(0, 0);
2645   xengnttab_map_grant_ref(xg, 0, 0, 0);
2646
2647   return 0;
2648 }
2649 EOF
2650         compile_prog "" "$xen_libs $xen_stable_libs"
2651       then
2652       xen_ctrl_version=40701
2653       xen=enabled
2654
2655     # Xen 4.6
2656     elif
2657         cat > $TMPC <<EOF &&
2658 #include <xenctrl.h>
2659 #include <xenstore.h>
2660 #include <stdint.h>
2661 #include <xen/hvm/hvm_info_table.h>
2662 #if !defined(HVM_MAX_VCPUS)
2663 # error HVM_MAX_VCPUS not defined
2664 #endif
2665 int main(void) {
2666   xc_interface *xc;
2667   xs_daemon_open();
2668   xc = xc_interface_open(0, 0, 0);
2669   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2670   xc_gnttab_open(NULL, 0);
2671   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2672   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2673   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2674   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2675   return 0;
2676 }
2677 EOF
2678         compile_prog "" "$xen_libs"
2679       then
2680       xen_ctrl_version=40600
2681       xen=enabled
2682
2683     # Xen 4.5
2684     elif
2685         cat > $TMPC <<EOF &&
2686 #include <xenctrl.h>
2687 #include <xenstore.h>
2688 #include <stdint.h>
2689 #include <xen/hvm/hvm_info_table.h>
2690 #if !defined(HVM_MAX_VCPUS)
2691 # error HVM_MAX_VCPUS not defined
2692 #endif
2693 int main(void) {
2694   xc_interface *xc;
2695   xs_daemon_open();
2696   xc = xc_interface_open(0, 0, 0);
2697   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2698   xc_gnttab_open(NULL, 0);
2699   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2700   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2701   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2702   return 0;
2703 }
2704 EOF
2705         compile_prog "" "$xen_libs"
2706       then
2707       xen_ctrl_version=40500
2708       xen=enabled
2709
2710     elif
2711         cat > $TMPC <<EOF &&
2712 #include <xenctrl.h>
2713 #include <xenstore.h>
2714 #include <stdint.h>
2715 #include <xen/hvm/hvm_info_table.h>
2716 #if !defined(HVM_MAX_VCPUS)
2717 # error HVM_MAX_VCPUS not defined
2718 #endif
2719 int main(void) {
2720   xc_interface *xc;
2721   xs_daemon_open();
2722   xc = xc_interface_open(0, 0, 0);
2723   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2724   xc_gnttab_open(NULL, 0);
2725   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2726   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2727   return 0;
2728 }
2729 EOF
2730         compile_prog "" "$xen_libs"
2731       then
2732       xen_ctrl_version=40200
2733       xen=enabled
2734
2735     else
2736       if test "$xen" = "enabled" ; then
2737         feature_not_found "xen (unsupported version)" \
2738                           "Install a supported xen (xen 4.2 or newer)"
2739       fi
2740       xen=disabled
2741     fi
2742
2743     if test "$xen" = enabled; then
2744       if test $xen_ctrl_version -ge 40701  ; then
2745         xen_libs="$xen_libs $xen_stable_libs "
2746       fi
2747     fi
2748   fi
2749 fi
2750
2751 ##########################################
2752 # GNUTLS probe
2753
2754 if test "$gnutls" != "no"; then
2755     pass="no"
2756     if $pkg_config --exists "gnutls >= 3.1.18"; then
2757         gnutls_cflags=$($pkg_config --cflags gnutls)
2758         gnutls_libs=$($pkg_config --libs gnutls)
2759         # Packaging for the static libraries is not always correct.
2760         # At least ubuntu 18.04 ships only shared libraries.
2761         write_c_skeleton
2762         if compile_prog "" "$gnutls_libs" ; then
2763             pass="yes"
2764         fi
2765     fi
2766     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2767         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2768     else
2769         gnutls="$pass"
2770     fi
2771 fi
2772
2773
2774 # If user didn't give a --disable/enable-gcrypt flag,
2775 # then mark as disabled if user requested nettle
2776 # explicitly
2777 if test -z "$gcrypt"
2778 then
2779     if test "$nettle" = "yes"
2780     then
2781         gcrypt="no"
2782     fi
2783 fi
2784
2785 # If user didn't give a --disable/enable-nettle flag,
2786 # then mark as disabled if user requested gcrypt
2787 # explicitly
2788 if test -z "$nettle"
2789 then
2790     if test "$gcrypt" = "yes"
2791     then
2792         nettle="no"
2793     fi
2794 fi
2795
2796 has_libgcrypt() {
2797     if ! has "libgcrypt-config"
2798     then
2799         return 1
2800     fi
2801
2802     if test -n "$cross_prefix"
2803     then
2804         host=$(libgcrypt-config --host)
2805         if test "$host-" != $cross_prefix
2806         then
2807             return 1
2808         fi
2809     fi
2810
2811     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2812     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2813
2814     if test $maj != 1 || test $min -lt 5
2815     then
2816        return 1
2817     fi
2818
2819     return 0
2820 }
2821
2822
2823 if test "$nettle" != "no"; then
2824     pass="no"
2825     if $pkg_config --exists "nettle >= 2.7.1"; then
2826         nettle_cflags=$($pkg_config --cflags nettle)
2827         nettle_libs=$($pkg_config --libs nettle)
2828         nettle_version=$($pkg_config --modversion nettle)
2829         # Link test to make sure the given libraries work (e.g for static).
2830         write_c_skeleton
2831         if compile_prog "" "$nettle_libs" ; then
2832             if test -z "$gcrypt"; then
2833                gcrypt="no"
2834             fi
2835             pass="yes"
2836         fi
2837     fi
2838     if test "$pass" = "yes"
2839     then
2840         cat > $TMPC << EOF
2841 #include <nettle/xts.h>
2842 int main(void) {
2843   return 0;
2844 }
2845 EOF
2846         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2847             nettle_xts=yes
2848             qemu_private_xts=no
2849         fi
2850     fi
2851     if test "$pass" = "no" && test "$nettle" = "yes"; then
2852         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2853     else
2854         nettle="$pass"
2855     fi
2856 fi
2857
2858 if test "$gcrypt" != "no"; then
2859     pass="no"
2860     if has_libgcrypt; then
2861         gcrypt_cflags=$(libgcrypt-config --cflags)
2862         gcrypt_libs=$(libgcrypt-config --libs)
2863         # Debian has removed -lgpg-error from libgcrypt-config
2864         # as it "spreads unnecessary dependencies" which in
2865         # turn breaks static builds...
2866         if test "$static" = "yes"
2867         then
2868             gcrypt_libs="$gcrypt_libs -lgpg-error"
2869         fi
2870
2871         # Link test to make sure the given libraries work (e.g for static).
2872         write_c_skeleton
2873         if compile_prog "" "$gcrypt_libs" ; then
2874             pass="yes"
2875         fi
2876     fi
2877     if test "$pass" = "yes"; then
2878         gcrypt="yes"
2879         cat > $TMPC << EOF
2880 #include <gcrypt.h>
2881 int main(void) {
2882   gcry_mac_hd_t handle;
2883   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
2884                 GCRY_MAC_FLAG_SECURE, NULL);
2885   return 0;
2886 }
2887 EOF
2888         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
2889             gcrypt_hmac=yes
2890         fi
2891         cat > $TMPC << EOF
2892 #include <gcrypt.h>
2893 int main(void) {
2894   gcry_cipher_hd_t handle;
2895   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
2896   return 0;
2897 }
2898 EOF
2899         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
2900             gcrypt_xts=yes
2901             qemu_private_xts=no
2902         fi
2903     elif test "$gcrypt" = "yes"; then
2904         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
2905     else
2906         gcrypt="no"
2907     fi
2908 fi
2909
2910
2911 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
2912 then
2913     error_exit "Only one of gcrypt & nettle can be enabled"
2914 fi
2915
2916 ##########################################
2917 # libtasn1 - only for the TLS creds/session test suite
2918
2919 tasn1=yes
2920 tasn1_cflags=""
2921 tasn1_libs=""
2922 if $pkg_config --exists "libtasn1"; then
2923     tasn1_cflags=$($pkg_config --cflags libtasn1)
2924     tasn1_libs=$($pkg_config --libs libtasn1)
2925 else
2926     tasn1=no
2927 fi
2928
2929
2930 ##########################################
2931 # PAM probe
2932
2933 if test "$auth_pam" != "no"; then
2934     cat > $TMPC <<EOF
2935 #include <security/pam_appl.h>
2936 #include <stdio.h>
2937 int main(void) {
2938    const char *service_name = "qemu";
2939    const char *user = "frank";
2940    const struct pam_conv pam_conv = { 0 };
2941    pam_handle_t *pamh = NULL;
2942    pam_start(service_name, user, &pam_conv, &pamh);
2943    return 0;
2944 }
2945 EOF
2946     if compile_prog "" "-lpam" ; then
2947         auth_pam=yes
2948     else
2949         if test "$auth_pam" = "yes"; then
2950             feature_not_found "PAM" "Install PAM development package"
2951         else
2952             auth_pam=no
2953         fi
2954     fi
2955 fi
2956
2957 ##########################################
2958 # VTE probe
2959
2960 if test "$vte" != "no"; then
2961     vteminversion="0.32.0"
2962     if $pkg_config --exists "vte-2.91"; then
2963       vtepackage="vte-2.91"
2964     else
2965       vtepackage="vte-2.90"
2966     fi
2967     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
2968         vte_cflags=$($pkg_config --cflags $vtepackage)
2969         vte_libs=$($pkg_config --libs $vtepackage)
2970         vteversion=$($pkg_config --modversion $vtepackage)
2971         vte="yes"
2972     elif test "$vte" = "yes"; then
2973         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
2974     else
2975         vte="no"
2976     fi
2977 fi
2978
2979 ##########################################
2980 # RDMA needs OpenFabrics libraries
2981 if test "$rdma" != "no" ; then
2982   cat > $TMPC <<EOF
2983 #include <rdma/rdma_cma.h>
2984 int main(void) { return 0; }
2985 EOF
2986   rdma_libs="-lrdmacm -libverbs -libumad"
2987   if compile_prog "" "$rdma_libs" ; then
2988     rdma="yes"
2989   else
2990     if test "$rdma" = "yes" ; then
2991         error_exit \
2992             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
2993             " Your options:" \
2994             "  (1) Fast: Install infiniband packages (devel) from your distro." \
2995             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
2996             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
2997     fi
2998     rdma="no"
2999   fi
3000 fi
3001
3002 ##########################################
3003 # PVRDMA detection
3004
3005 cat > $TMPC <<EOF &&
3006 #include <sys/mman.h>
3007
3008 int
3009 main(void)
3010 {
3011     char buf = 0;
3012     void *addr = &buf;
3013     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3014
3015     return 0;
3016 }
3017 EOF
3018
3019 if test "$rdma" = "yes" ; then
3020     case "$pvrdma" in
3021     "")
3022         if compile_prog "" ""; then
3023             pvrdma="yes"
3024         else
3025             pvrdma="no"
3026         fi
3027         ;;
3028     "yes")
3029         if ! compile_prog "" ""; then
3030             error_exit "PVRDMA is not supported since mremap is not implemented"
3031         fi
3032         pvrdma="yes"
3033         ;;
3034     "no")
3035         pvrdma="no"
3036         ;;
3037     esac
3038 else
3039     if test "$pvrdma" = "yes" ; then
3040         error_exit "PVRDMA requires rdma suppport"
3041     fi
3042     pvrdma="no"
3043 fi
3044
3045 # Let's see if enhanced reg_mr is supported
3046 if test "$pvrdma" = "yes" ; then
3047
3048 cat > $TMPC <<EOF &&
3049 #include <infiniband/verbs.h>
3050
3051 int
3052 main(void)
3053 {
3054     struct ibv_mr *mr;
3055     struct ibv_pd *pd = NULL;
3056     size_t length = 10;
3057     uint64_t iova = 0;
3058     int access = 0;
3059     void *addr = NULL;
3060
3061     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3062
3063     ibv_dereg_mr(mr);
3064
3065     return 0;
3066 }
3067 EOF
3068     if ! compile_prog "" "-libverbs"; then
3069         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3070     fi
3071 fi
3072
3073 ##########################################
3074 # xfsctl() probe, used for file-posix.c
3075 if test "$xfs" != "no" ; then
3076   cat > $TMPC << EOF
3077 #include <stddef.h>  /* NULL */
3078 #include <xfs/xfs.h>
3079 int main(void)
3080 {
3081     xfsctl(NULL, 0, 0, NULL);
3082     return 0;
3083 }
3084 EOF
3085   if compile_prog "" "" ; then
3086     xfs="yes"
3087   else
3088     if test "$xfs" = "yes" ; then
3089       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3090     fi
3091     xfs=no
3092   fi
3093 fi
3094
3095 ##########################################
3096 # vde libraries probe
3097 if test "$vde" != "no" ; then
3098   vde_libs="-lvdeplug"
3099   cat > $TMPC << EOF
3100 #include <libvdeplug.h>
3101 int main(void)
3102 {
3103     struct vde_open_args a = {0, 0, 0};
3104     char s[] = "";
3105     vde_open(s, s, &a);
3106     return 0;
3107 }
3108 EOF
3109   if compile_prog "" "$vde_libs" ; then
3110     vde=yes
3111   else
3112     if test "$vde" = "yes" ; then
3113       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3114     fi
3115     vde=no
3116   fi
3117 fi
3118
3119 ##########################################
3120 # netmap support probe
3121 # Apart from looking for netmap headers, we make sure that the host API version
3122 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3123 # a minor/major version number. Minor new features will be marked with values up
3124 # to 15, and if something happens that requires a change to the backend we will
3125 # move above 15, submit the backend fixes and modify this two bounds.
3126 if test "$netmap" != "no" ; then
3127   cat > $TMPC << EOF
3128 #include <inttypes.h>
3129 #include <net/if.h>
3130 #include <net/netmap.h>
3131 #include <net/netmap_user.h>
3132 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3133 #error
3134 #endif
3135 int main(void) { return 0; }
3136 EOF
3137   if compile_prog "" "" ; then
3138     netmap=yes
3139   else
3140     if test "$netmap" = "yes" ; then
3141       feature_not_found "netmap"
3142     fi
3143     netmap=no
3144   fi
3145 fi
3146
3147 ##########################################
3148 # Sound support libraries probe
3149
3150 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3151 for drv in $audio_drv_list; do
3152     case $drv in
3153     alsa | try-alsa)
3154     if $pkg_config alsa --exists; then
3155         alsa_libs=$($pkg_config alsa --libs)
3156         alsa_cflags=$($pkg_config alsa --cflags)
3157         alsa=yes
3158         if test "$drv" = "try-alsa"; then
3159             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3160         fi
3161     else
3162         if test "$drv" = "try-alsa"; then
3163             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3164         else
3165             error_exit "$drv check failed" \
3166                 "Make sure to have the $drv libs and headers installed."
3167         fi
3168     fi
3169     ;;
3170
3171     pa | try-pa)
3172     if $pkg_config libpulse --exists; then
3173         libpulse=yes
3174         pulse_libs=$($pkg_config libpulse --libs)
3175         pulse_cflags=$($pkg_config libpulse --cflags)
3176         if test "$drv" = "try-pa"; then
3177             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3178         fi
3179     else
3180         if test "$drv" = "try-pa"; then
3181             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3182         else
3183             error_exit "$drv check failed" \
3184                 "Make sure to have the $drv libs and headers installed."
3185         fi
3186     fi
3187     ;;
3188
3189     sdl)
3190     if test "$sdl" = "no"; then
3191         error_exit "sdl not found or disabled, can not use sdl audio driver"
3192     fi
3193     ;;
3194
3195     try-sdl)
3196     if test "$sdl" = "no"; then
3197         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3198     else
3199         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3200     fi
3201     ;;
3202
3203     coreaudio)
3204       coreaudio_libs="-framework CoreAudio"
3205     ;;
3206
3207     dsound)
3208       dsound_libs="-lole32 -ldxguid"
3209       audio_win_int="yes"
3210     ;;
3211
3212     oss)
3213       oss_libs="$oss_lib"
3214     ;;
3215
3216     jack | try-jack)
3217     if $pkg_config jack --exists; then
3218         libjack=yes
3219         jack_libs=$($pkg_config jack --libs)
3220         if test "$drv" = "try-jack"; then
3221             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3222         fi
3223     else
3224         if test "$drv" = "try-jack"; then
3225             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3226         else
3227             error_exit "$drv check failed" \
3228                 "Make sure to have the $drv libs and headers installed."
3229         fi
3230     fi
3231     ;;
3232
3233     *)
3234     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3235         error_exit "Unknown driver '$drv' selected" \
3236             "Possible drivers are: $audio_possible_drivers"
3237     }
3238     ;;
3239     esac
3240 done
3241
3242 ##########################################
3243 # glib support probe
3244
3245 glib_req_ver=2.48
3246 glib_modules=gthread-2.0
3247 if test "$modules" = yes; then
3248     glib_modules="$glib_modules gmodule-export-2.0"
3249 fi
3250 if test "$plugins" = yes; then
3251     glib_modules="$glib_modules gmodule-2.0"
3252 fi
3253
3254 for i in $glib_modules; do
3255     if $pkg_config --atleast-version=$glib_req_ver $i; then
3256         glib_cflags=$($pkg_config --cflags $i)
3257         glib_libs=$($pkg_config --libs $i)
3258     else
3259         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3260     fi
3261 done
3262
3263 # This workaround is required due to a bug in pkg-config file for glib as it
3264 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3265
3266 if test "$static" = yes && test "$mingw32" = yes; then
3267     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3268 fi
3269
3270 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3271     gio_cflags=$($pkg_config --cflags gio-2.0)
3272     gio_libs=$($pkg_config --libs gio-2.0)
3273     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3274     if [ ! -x "$gdbus_codegen" ]; then
3275         gdbus_codegen=
3276     fi
3277     # Check that the libraries actually work -- Ubuntu 18.04 ships
3278     # with pkg-config --static --libs data for gio-2.0 that is missing
3279     # -lblkid and will give a link error.
3280     cat > $TMPC <<EOF
3281 #include <gio/gio.h>
3282 int main(void)
3283 {
3284     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3285     return 0;
3286 }
3287 EOF
3288     if compile_prog "$gio_cflags" "$gio_libs" ; then
3289         gio=yes
3290     else
3291         gio=no
3292     fi
3293 else
3294     gio=no
3295 fi
3296
3297 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3298     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3299     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3300 fi
3301
3302 # Sanity check that the current size_t matches the
3303 # size that glib thinks it should be. This catches
3304 # problems on multi-arch where people try to build
3305 # 32-bit QEMU while pointing at 64-bit glib headers
3306 cat > $TMPC <<EOF
3307 #include <glib.h>
3308 #include <unistd.h>
3309
3310 #define QEMU_BUILD_BUG_ON(x) \
3311   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3312
3313 int main(void) {
3314    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3315    return 0;
3316 }
3317 EOF
3318
3319 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3320     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3321                "You probably need to set PKG_CONFIG_LIBDIR"\
3322                "to point to the right pkg-config files for your"\
3323                "build target"
3324 fi
3325
3326 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3327 cat > $TMPC << EOF
3328 #include <glib.h>
3329 int main(void) { return 0; }
3330 EOF
3331 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3332     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3333         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3334         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3335     fi
3336 fi
3337
3338 # Silence clang warnings triggered by glib < 2.57.2
3339 cat > $TMPC << EOF
3340 #include <glib.h>
3341 typedef struct Foo {
3342     int i;
3343 } Foo;
3344 static void foo_free(Foo *f)
3345 {
3346     g_free(f);
3347 }
3348 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3349 int main(void) { return 0; }
3350 EOF
3351 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3352     if cc_has_warning_flag "-Wno-unused-function"; then
3353         glib_cflags="$glib_cflags -Wno-unused-function"
3354         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3355     fi
3356 fi
3357
3358 ##########################################
3359 # SHA command probe for modules
3360 if test "$modules" = yes; then
3361     shacmd_probe="sha1sum sha1 shasum"
3362     for c in $shacmd_probe; do
3363         if has $c; then
3364             shacmd="$c"
3365             break
3366         fi
3367     done
3368     if test "$shacmd" = ""; then
3369         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3370     fi
3371 fi
3372
3373 ##########################################
3374 # pthread probe
3375 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3376
3377 pthread=no
3378 cat > $TMPC << EOF
3379 #include <pthread.h>
3380 static void *f(void *p) { return NULL; }
3381 int main(void) {
3382   pthread_t thread;
3383   pthread_create(&thread, 0, f, 0);
3384   return 0;
3385 }
3386 EOF
3387 if compile_prog "" "" ; then
3388   pthread=yes
3389 else
3390   for pthread_lib in $PTHREADLIBS_LIST; do
3391     if compile_prog "" "$pthread_lib" ; then
3392       pthread=yes
3393       found=no
3394       for lib_entry in $LIBS; do
3395         if test "$lib_entry" = "$pthread_lib"; then
3396           found=yes
3397           break
3398         fi
3399       done
3400       if test "$found" = "no"; then
3401         LIBS="$pthread_lib $LIBS"
3402       fi
3403       break
3404     fi
3405   done
3406 fi
3407
3408 if test "$mingw32" != yes && test "$pthread" = no; then
3409   error_exit "pthread check failed" \
3410       "Make sure to have the pthread libs and headers installed."
3411 fi
3412
3413 # check for pthread_setname_np with thread id
3414 pthread_setname_np_w_tid=no
3415 cat > $TMPC << EOF
3416 #include <pthread.h>
3417
3418 static void *f(void *p) { return NULL; }
3419 int main(void)
3420 {
3421     pthread_t thread;
3422     pthread_create(&thread, 0, f, 0);
3423     pthread_setname_np(thread, "QEMU");
3424     return 0;
3425 }
3426 EOF
3427 if compile_prog "" "$pthread_lib" ; then
3428   pthread_setname_np_w_tid=yes
3429 fi
3430
3431 # check for pthread_setname_np without thread id
3432 pthread_setname_np_wo_tid=no
3433 cat > $TMPC << EOF
3434 #include <pthread.h>
3435
3436 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3437 int main(void)
3438 {
3439     pthread_t thread;
3440     pthread_create(&thread, 0, f, 0);
3441     return 0;
3442 }
3443 EOF
3444 if compile_prog "" "$pthread_lib" ; then
3445   pthread_setname_np_wo_tid=yes
3446 fi
3447
3448 ##########################################
3449 # libssh probe
3450 if test "$libssh" != "no" ; then
3451   if $pkg_config --exists libssh; then
3452     libssh_cflags=$($pkg_config libssh --cflags)
3453     libssh_libs=$($pkg_config libssh --libs)
3454     libssh=yes
3455   else
3456     if test "$libssh" = "yes" ; then
3457       error_exit "libssh required for --enable-libssh"
3458     fi
3459     libssh=no
3460   fi
3461 fi
3462
3463 ##########################################
3464 # Check for libssh 0.8
3465 # This is done like this instead of using the LIBSSH_VERSION_* and
3466 # SSH_VERSION_* macros because some distributions in the past shipped
3467 # snapshots of the future 0.8 from Git, and those snapshots did not
3468 # have updated version numbers (still referring to 0.7.0).
3469
3470 if test "$libssh" = "yes"; then
3471   cat > $TMPC <<EOF
3472 #include <libssh/libssh.h>
3473 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3474 EOF
3475   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3476     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3477   fi
3478 fi
3479
3480 ##########################################
3481 # linux-aio probe
3482
3483 if test "$linux_aio" != "no" ; then
3484   cat > $TMPC <<EOF
3485 #include <libaio.h>
3486 #include <sys/eventfd.h>
3487 #include <stddef.h>
3488 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3489 EOF
3490   if compile_prog "" "-laio" ; then
3491     linux_aio=yes
3492   else
3493     if test "$linux_aio" = "yes" ; then
3494       feature_not_found "linux AIO" "Install libaio devel"
3495     fi
3496     linux_aio=no
3497   fi
3498 fi
3499 ##########################################
3500 # linux-io-uring probe
3501
3502 if test "$linux_io_uring" != "no" ; then
3503   if $pkg_config liburing; then
3504     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3505     linux_io_uring_libs=$($pkg_config --libs liburing)
3506     linux_io_uring=yes
3507   else
3508     if test "$linux_io_uring" = "yes" ; then
3509       feature_not_found "linux io_uring" "Install liburing devel"
3510     fi
3511     linux_io_uring=no
3512   fi
3513 fi
3514
3515 ##########################################
3516 # TPM emulation is only on POSIX
3517
3518 if test "$tpm" = ""; then
3519   if test "$mingw32" = "yes"; then
3520     tpm=no
3521   else
3522     tpm=yes
3523   fi
3524 elif test "$tpm" = "yes"; then
3525   if test "$mingw32" = "yes" ; then
3526     error_exit "TPM emulation only available on POSIX systems"
3527   fi
3528 fi
3529
3530 ##########################################
3531 # iovec probe
3532 cat > $TMPC <<EOF
3533 #include <sys/types.h>
3534 #include <sys/uio.h>
3535 #include <unistd.h>
3536 int main(void) { return sizeof(struct iovec); }
3537 EOF
3538 iovec=no
3539 if compile_prog "" "" ; then
3540   iovec=yes
3541 fi
3542
3543 ##########################################
3544 # preadv probe
3545 cat > $TMPC <<EOF
3546 #include <sys/types.h>
3547 #include <sys/uio.h>
3548 #include <unistd.h>
3549 int main(void) { return preadv(0, 0, 0, 0); }
3550 EOF
3551 preadv=no
3552 if compile_prog "" "" ; then
3553   preadv=yes
3554 fi
3555
3556 ##########################################
3557 # fdt probe
3558
3559 case "$fdt" in
3560   auto | enabled | internal)
3561     # Simpler to always update submodule, even if not needed.
3562     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
3563       git_submodules="${git_submodules} dtc"
3564     fi
3565     ;;
3566 esac
3567
3568 ##########################################
3569 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3570
3571 gbm="no"
3572 if $pkg_config gbm; then
3573     gbm_cflags="$($pkg_config --cflags gbm)"
3574     gbm_libs="$($pkg_config --libs gbm)"
3575     gbm="yes"
3576 fi
3577
3578 if test "$opengl" != "no" ; then
3579   opengl_pkgs="epoxy gbm"
3580   if $pkg_config $opengl_pkgs; then
3581     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3582     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3583     opengl=yes
3584   else
3585     if test "$opengl" = "yes" ; then
3586       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3587     fi
3588     opengl_cflags=""
3589     opengl_libs=""
3590     opengl=no
3591   fi
3592 fi
3593
3594 if test "$opengl" = "yes"; then
3595   cat > $TMPC << EOF
3596 #include <epoxy/egl.h>
3597 #ifndef EGL_MESA_image_dma_buf_export
3598 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3599 #endif
3600 int main(void) { return 0; }
3601 EOF
3602   if compile_prog "" "" ; then
3603     opengl_dmabuf=yes
3604   fi
3605 fi
3606
3607 ##########################################
3608 # libxml2 probe
3609 if test "$libxml2" != "no" ; then
3610     if $pkg_config --exists libxml-2.0; then
3611         libxml2="yes"
3612         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3613         libxml2_libs=$($pkg_config --libs libxml-2.0)
3614     else
3615         if test "$libxml2" = "yes"; then
3616             feature_not_found "libxml2" "Install libxml2 devel"
3617         fi
3618         libxml2="no"
3619     fi
3620 fi
3621
3622 # Check for inotify functions when we are building linux-user
3623 # emulator.  This is done because older glibc versions don't
3624 # have syscall stubs for these implemented.  In that case we
3625 # don't provide them even if kernel supports them.
3626 #
3627 inotify=no
3628 cat > $TMPC << EOF
3629 #include <sys/inotify.h>
3630
3631 int
3632 main(void)
3633 {
3634         /* try to start inotify */
3635         return inotify_init();
3636 }
3637 EOF
3638 if compile_prog "" "" ; then
3639   inotify=yes
3640 fi
3641
3642 inotify1=no
3643 cat > $TMPC << EOF
3644 #include <sys/inotify.h>
3645
3646 int
3647 main(void)
3648 {
3649     /* try to start inotify */
3650     return inotify_init1(0);
3651 }
3652 EOF
3653 if compile_prog "" "" ; then
3654   inotify1=yes
3655 fi
3656
3657 # check if pipe2 is there
3658 pipe2=no
3659 cat > $TMPC << EOF
3660 #include <unistd.h>
3661 #include <fcntl.h>
3662
3663 int main(void)
3664 {
3665     int pipefd[2];
3666     return pipe2(pipefd, O_CLOEXEC);
3667 }
3668 EOF
3669 if compile_prog "" "" ; then
3670   pipe2=yes
3671 fi
3672
3673 # check if accept4 is there
3674 accept4=no
3675 cat > $TMPC << EOF
3676 #include <sys/socket.h>
3677 #include <stddef.h>
3678
3679 int main(void)
3680 {
3681     accept4(0, NULL, NULL, SOCK_CLOEXEC);
3682     return 0;
3683 }
3684 EOF
3685 if compile_prog "" "" ; then
3686   accept4=yes
3687 fi
3688
3689 # check if tee/splice is there. vmsplice was added same time.
3690 splice=no
3691 cat > $TMPC << EOF
3692 #include <unistd.h>
3693 #include <fcntl.h>
3694 #include <limits.h>
3695
3696 int main(void)
3697 {
3698     int len, fd = 0;
3699     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
3700     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
3701     return 0;
3702 }
3703 EOF
3704 if compile_prog "" "" ; then
3705   splice=yes
3706 fi
3707
3708 ##########################################
3709 # libnuma probe
3710
3711 if test "$numa" != "no" ; then
3712   cat > $TMPC << EOF
3713 #include <numa.h>
3714 int main(void) { return numa_available(); }
3715 EOF
3716
3717   if compile_prog "" "-lnuma" ; then
3718     numa=yes
3719     numa_libs="-lnuma"
3720   else
3721     if test "$numa" = "yes" ; then
3722       feature_not_found "numa" "install numactl devel"
3723     fi
3724     numa=no
3725   fi
3726 fi
3727
3728 malloc=system
3729 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
3730     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
3731     exit 1
3732 elif test "$tcmalloc" = "yes" ; then
3733     malloc=tcmalloc
3734 elif test "$jemalloc" = "yes" ; then
3735     malloc=jemalloc
3736 fi
3737
3738 ##########################################
3739 # signalfd probe
3740 signalfd="no"
3741 cat > $TMPC << EOF
3742 #include <unistd.h>
3743 #include <sys/syscall.h>
3744 #include <signal.h>
3745 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
3746 EOF
3747
3748 if compile_prog "" "" ; then
3749   signalfd=yes
3750 fi
3751
3752 # check if optreset global is declared by <getopt.h>
3753 optreset="no"
3754 cat > $TMPC << EOF
3755 #include <getopt.h>
3756 int main(void) { return optreset; }
3757 EOF
3758
3759 if compile_prog "" "" ; then
3760   optreset=yes
3761 fi
3762
3763 # check if eventfd is supported
3764 eventfd=no
3765 cat > $TMPC << EOF
3766 #include <sys/eventfd.h>
3767
3768 int main(void)
3769 {
3770     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
3771 }
3772 EOF
3773 if compile_prog "" "" ; then
3774   eventfd=yes
3775 fi
3776
3777 # check if memfd is supported
3778 memfd=no
3779 cat > $TMPC << EOF
3780 #include <sys/mman.h>
3781
3782 int main(void)
3783 {
3784     return memfd_create("foo", MFD_ALLOW_SEALING);
3785 }
3786 EOF
3787 if compile_prog "" "" ; then
3788   memfd=yes
3789 fi
3790
3791 # check for usbfs
3792 have_usbfs=no
3793 if test "$linux_user" = "yes"; then
3794   cat > $TMPC << EOF
3795 #include <linux/usbdevice_fs.h>
3796
3797 #ifndef USBDEVFS_GET_CAPABILITIES
3798 #error "USBDEVFS_GET_CAPABILITIES undefined"
3799 #endif
3800
3801 #ifndef USBDEVFS_DISCONNECT_CLAIM
3802 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
3803 #endif
3804
3805 int main(void)
3806 {
3807     return 0;
3808 }
3809 EOF
3810   if compile_prog "" ""; then
3811     have_usbfs=yes
3812   fi
3813 fi
3814
3815 # check for fallocate
3816 fallocate=no
3817 cat > $TMPC << EOF
3818 #include <fcntl.h>
3819
3820 int main(void)
3821 {
3822     fallocate(0, 0, 0, 0);
3823     return 0;
3824 }
3825 EOF
3826 if compile_prog "" "" ; then
3827   fallocate=yes
3828 fi
3829
3830 # check for fallocate hole punching
3831 fallocate_punch_hole=no
3832 cat > $TMPC << EOF
3833 #include <fcntl.h>
3834 #include <linux/falloc.h>
3835
3836 int main(void)
3837 {
3838     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
3839     return 0;
3840 }
3841 EOF
3842 if compile_prog "" "" ; then
3843   fallocate_punch_hole=yes
3844 fi
3845
3846 # check that fallocate supports range zeroing inside the file
3847 fallocate_zero_range=no
3848 cat > $TMPC << EOF
3849 #include <fcntl.h>
3850 #include <linux/falloc.h>
3851
3852 int main(void)
3853 {
3854     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
3855     return 0;
3856 }
3857 EOF
3858 if compile_prog "" "" ; then
3859   fallocate_zero_range=yes
3860 fi
3861
3862 # check for posix_fallocate
3863 posix_fallocate=no
3864 cat > $TMPC << EOF
3865 #include <fcntl.h>
3866
3867 int main(void)
3868 {
3869     posix_fallocate(0, 0, 0);
3870     return 0;
3871 }
3872 EOF
3873 if compile_prog "" "" ; then
3874     posix_fallocate=yes
3875 fi
3876
3877 # check for sync_file_range
3878 sync_file_range=no
3879 cat > $TMPC << EOF
3880 #include <fcntl.h>
3881
3882 int main(void)
3883 {
3884     sync_file_range(0, 0, 0, 0);
3885     return 0;
3886 }
3887 EOF
3888 if compile_prog "" "" ; then
3889   sync_file_range=yes
3890 fi
3891
3892 # check for linux/fiemap.h and FS_IOC_FIEMAP
3893 fiemap=no
3894 cat > $TMPC << EOF
3895 #include <sys/ioctl.h>
3896 #include <linux/fs.h>
3897 #include <linux/fiemap.h>
3898
3899 int main(void)
3900 {
3901     ioctl(0, FS_IOC_FIEMAP, 0);
3902     return 0;
3903 }
3904 EOF
3905 if compile_prog "" "" ; then
3906   fiemap=yes
3907 fi
3908
3909 # check for dup3
3910 dup3=no
3911 cat > $TMPC << EOF
3912 #include <unistd.h>
3913
3914 int main(void)
3915 {
3916     dup3(0, 0, 0);
3917     return 0;
3918 }
3919 EOF
3920 if compile_prog "" "" ; then
3921   dup3=yes
3922 fi
3923
3924 # check for ppoll support
3925 ppoll=no
3926 cat > $TMPC << EOF
3927 #include <poll.h>
3928
3929 int main(void)
3930 {
3931     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
3932     ppoll(&pfd, 1, 0, 0);
3933     return 0;
3934 }
3935 EOF
3936 if compile_prog "" "" ; then
3937   ppoll=yes
3938 fi
3939
3940 # check for prctl(PR_SET_TIMERSLACK , ... ) support
3941 prctl_pr_set_timerslack=no
3942 cat > $TMPC << EOF
3943 #include <sys/prctl.h>
3944
3945 int main(void)
3946 {
3947     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
3948     return 0;
3949 }
3950 EOF
3951 if compile_prog "" "" ; then
3952   prctl_pr_set_timerslack=yes
3953 fi
3954
3955 # check for epoll support
3956 epoll=no
3957 cat > $TMPC << EOF
3958 #include <sys/epoll.h>
3959
3960 int main(void)
3961 {
3962     epoll_create(0);
3963     return 0;
3964 }
3965 EOF
3966 if compile_prog "" "" ; then
3967   epoll=yes
3968 fi
3969
3970 # epoll_create1 is a later addition
3971 # so we must check separately for its presence
3972 epoll_create1=no
3973 cat > $TMPC << EOF
3974 #include <sys/epoll.h>
3975
3976 int main(void)
3977 {
3978     /* Note that we use epoll_create1 as a value, not as
3979      * a function being called. This is necessary so that on
3980      * old SPARC glibc versions where the function was present in
3981      * the library but not declared in the header file we will
3982      * fail the configure check. (Otherwise we will get a compiler
3983      * warning but not an error, and will proceed to fail the
3984      * qemu compile where we compile with -Werror.)
3985      */
3986     return (int)(uintptr_t)&epoll_create1;
3987 }
3988 EOF
3989 if compile_prog "" "" ; then
3990   epoll_create1=yes
3991 fi
3992
3993 # check for sendfile support
3994 sendfile=no
3995 cat > $TMPC << EOF
3996 #include <sys/sendfile.h>
3997
3998 int main(void)
3999 {
4000     return sendfile(0, 0, 0, 0);
4001 }
4002 EOF
4003 if compile_prog "" "" ; then
4004   sendfile=yes
4005 fi
4006
4007 # check for timerfd support (glibc 2.8 and newer)
4008 timerfd=no
4009 cat > $TMPC << EOF
4010 #include <sys/timerfd.h>
4011
4012 int main(void)
4013 {
4014     return(timerfd_create(CLOCK_REALTIME, 0));
4015 }
4016 EOF
4017 if compile_prog "" "" ; then
4018   timerfd=yes
4019 fi
4020
4021 # check for setns and unshare support
4022 setns=no
4023 cat > $TMPC << EOF
4024 #include <sched.h>
4025
4026 int main(void)
4027 {
4028     int ret;
4029     ret = setns(0, 0);
4030     ret = unshare(0);
4031     return ret;
4032 }
4033 EOF
4034 if compile_prog "" "" ; then
4035   setns=yes
4036 fi
4037
4038 # clock_adjtime probe
4039 clock_adjtime=no
4040 cat > $TMPC <<EOF
4041 #include <time.h>
4042 #include <sys/timex.h>
4043
4044 int main(void)
4045 {
4046     return clock_adjtime(0, 0);
4047 }
4048 EOF
4049 clock_adjtime=no
4050 if compile_prog "" "" ; then
4051   clock_adjtime=yes
4052 fi
4053
4054 # syncfs probe
4055 syncfs=no
4056 cat > $TMPC <<EOF
4057 #include <unistd.h>
4058
4059 int main(void)
4060 {
4061     return syncfs(0);
4062 }
4063 EOF
4064 syncfs=no
4065 if compile_prog "" "" ; then
4066   syncfs=yes
4067 fi
4068
4069 # Search for bswap_32 function
4070 byteswap_h=no
4071 cat > $TMPC << EOF
4072 #include <byteswap.h>
4073 int main(void) { return bswap_32(0); }
4074 EOF
4075 if compile_prog "" "" ; then
4076   byteswap_h=yes
4077 fi
4078
4079 # Search for bswap32 function
4080 bswap_h=no
4081 cat > $TMPC << EOF
4082 #include <sys/endian.h>
4083 #include <sys/types.h>
4084 #include <machine/bswap.h>
4085 int main(void) { return bswap32(0); }
4086 EOF
4087 if compile_prog "" "" ; then
4088   bswap_h=yes
4089 fi
4090
4091 ##########################################
4092 # Do we need librt
4093 # uClibc provides 2 versions of clock_gettime(), one with realtime
4094 # support and one without. This means that the clock_gettime() don't
4095 # need -lrt. We still need it for timer_create() so we check for this
4096 # function in addition.
4097 cat > $TMPC <<EOF
4098 #include <signal.h>
4099 #include <time.h>
4100 int main(void) {
4101   timer_create(CLOCK_REALTIME, NULL, NULL);
4102   return clock_gettime(CLOCK_REALTIME, NULL);
4103 }
4104 EOF
4105
4106 if compile_prog "" "" ; then
4107   :
4108 # we need pthread for static linking. use previous pthread test result
4109 elif compile_prog "" "$pthread_lib -lrt" ; then
4110   LIBS="$LIBS -lrt"
4111 fi
4112
4113 # Check whether we have openpty() in either libc or libutil
4114 cat > $TMPC << EOF
4115 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4116 int main(void) { return openpty(0, 0, 0, 0, 0); }
4117 EOF
4118
4119 have_openpty="no"
4120 if compile_prog "" "" ; then
4121   have_openpty="yes"
4122 else
4123   if compile_prog "" "-lutil" ; then
4124     have_openpty="yes"
4125   fi
4126 fi
4127
4128 ##########################################
4129 # spice probe
4130 if test "$spice" != "no" ; then
4131   cat > $TMPC << EOF
4132 #include <spice.h>
4133 int main(void) { spice_server_new(); return 0; }
4134 EOF
4135   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4136   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4137   if $pkg_config --atleast-version=0.12.5 spice-server && \
4138      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4139      compile_prog "$spice_cflags" "$spice_libs" ; then
4140     spice="yes"
4141   else
4142     if test "$spice" = "yes" ; then
4143       feature_not_found "spice" \
4144           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4145     fi
4146     spice="no"
4147   fi
4148 fi
4149
4150 # check for smartcard support
4151 if test "$smartcard" != "no"; then
4152     if $pkg_config --atleast-version=2.5.1 libcacard; then
4153         libcacard_cflags=$($pkg_config --cflags libcacard)
4154         libcacard_libs=$($pkg_config --libs libcacard)
4155         smartcard="yes"
4156     else
4157         if test "$smartcard" = "yes"; then
4158             feature_not_found "smartcard" "Install libcacard devel"
4159         fi
4160         smartcard="no"
4161     fi
4162 fi
4163
4164 # check for libusb
4165 if test "$libusb" != "no" ; then
4166     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4167         libusb="yes"
4168         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4169         libusb_libs=$($pkg_config --libs libusb-1.0)
4170     else
4171         if test "$libusb" = "yes"; then
4172             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4173         fi
4174         libusb="no"
4175     fi
4176 fi
4177
4178 # check for usbredirparser for usb network redirection support
4179 if test "$usb_redir" != "no" ; then
4180     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4181         usb_redir="yes"
4182         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4183         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4184     else
4185         if test "$usb_redir" = "yes"; then
4186             feature_not_found "usb-redir" "Install usbredir devel"
4187         fi
4188         usb_redir="no"
4189     fi
4190 fi
4191
4192 ##########################################
4193 # check if we have VSS SDK headers for win
4194
4195 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4196         test "$vss_win32_sdk" != "no" ; then
4197   case "$vss_win32_sdk" in
4198     "")   vss_win32_include="-isystem $source_path" ;;
4199     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4200           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4201           vss_win32_include="-isystem $source_path/.sdk/vss"
4202           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4203           ;;
4204     *)    vss_win32_include="-isystem $vss_win32_sdk"
4205   esac
4206   cat > $TMPC << EOF
4207 #define __MIDL_user_allocate_free_DEFINED__
4208 #include <inc/win2003/vss.h>
4209 int main(void) { return VSS_CTX_BACKUP; }
4210 EOF
4211   if compile_prog "$vss_win32_include" "" ; then
4212     guest_agent_with_vss="yes"
4213     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4214     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4215     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4216   else
4217     if test "$vss_win32_sdk" != "" ; then
4218       echo "ERROR: Please download and install Microsoft VSS SDK:"
4219       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4220       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4221       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4222       echo "ERROR: The headers are extracted in the directory \`inc'."
4223       feature_not_found "VSS support"
4224     fi
4225     guest_agent_with_vss="no"
4226   fi
4227 fi
4228
4229 ##########################################
4230 # lookup Windows platform SDK (if not specified)
4231 # The SDK is needed only to build .tlb (type library) file of guest agent
4232 # VSS provider from the source. It is usually unnecessary because the
4233 # pre-compiled .tlb file is included.
4234
4235 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4236         test "$guest_agent_with_vss" = "yes" ; then
4237   if test -z "$win_sdk"; then
4238     programfiles="$PROGRAMFILES"
4239     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4240     if test -n "$programfiles"; then
4241       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4242     else
4243       feature_not_found "Windows SDK"
4244     fi
4245   elif test "$win_sdk" = "no"; then
4246     win_sdk=""
4247   fi
4248 fi
4249
4250 ##########################################
4251 # check if mingw environment provides a recent ntddscsi.h
4252 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4253   cat > $TMPC << EOF
4254 #include <windows.h>
4255 #include <ntddscsi.h>
4256 int main(void) {
4257 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4258 #error Missing required ioctl definitions
4259 #endif
4260   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4261   return addr.Lun;
4262 }
4263 EOF
4264   if compile_prog "" "" ; then
4265     guest_agent_ntddscsi=yes
4266     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4267   fi
4268 fi
4269
4270 ##########################################
4271 # virgl renderer probe
4272
4273 if test "$virglrenderer" != "no" ; then
4274   cat > $TMPC << EOF
4275 #include <virglrenderer.h>
4276 int main(void) { virgl_renderer_poll(); return 0; }
4277 EOF
4278   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4279   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4280   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4281   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4282      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4283     virglrenderer="yes"
4284   else
4285     if test "$virglrenderer" = "yes" ; then
4286       feature_not_found "virglrenderer"
4287     fi
4288     virglrenderer="no"
4289   fi
4290 fi
4291
4292 ##########################################
4293 # capstone
4294
4295 case "$capstone" in
4296   auto | enabled | internal)
4297     # Simpler to always update submodule, even if not needed.
4298     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
4299       git_submodules="${git_submodules} capstone"
4300     fi
4301     ;;
4302 esac
4303
4304 ##########################################
4305 # check if we have fdatasync
4306
4307 fdatasync=no
4308 cat > $TMPC << EOF
4309 #include <unistd.h>
4310 int main(void) {
4311 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4312 return fdatasync(0);
4313 #else
4314 #error Not supported
4315 #endif
4316 }
4317 EOF
4318 if compile_prog "" "" ; then
4319     fdatasync=yes
4320 fi
4321
4322 ##########################################
4323 # check if we have madvise
4324
4325 madvise=no
4326 cat > $TMPC << EOF
4327 #include <sys/types.h>
4328 #include <sys/mman.h>
4329 #include <stddef.h>
4330 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4331 EOF
4332 if compile_prog "" "" ; then
4333     madvise=yes
4334 fi
4335
4336 ##########################################
4337 # check if we have posix_madvise
4338
4339 posix_madvise=no
4340 cat > $TMPC << EOF
4341 #include <sys/mman.h>
4342 #include <stddef.h>
4343 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4344 EOF
4345 if compile_prog "" "" ; then
4346     posix_madvise=yes
4347 fi
4348
4349 ##########################################
4350 # check if we have posix_memalign()
4351
4352 posix_memalign=no
4353 cat > $TMPC << EOF
4354 #include <stdlib.h>
4355 int main(void) {
4356     void *p;
4357     return posix_memalign(&p, 8, 8);
4358 }
4359 EOF
4360 if compile_prog "" "" ; then
4361     posix_memalign=yes
4362 fi
4363
4364 ##########################################
4365 # check if we have posix_syslog
4366
4367 posix_syslog=no
4368 cat > $TMPC << EOF
4369 #include <syslog.h>
4370 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4371 EOF
4372 if compile_prog "" "" ; then
4373     posix_syslog=yes
4374 fi
4375
4376 ##########################################
4377 # check if we have sem_timedwait
4378
4379 sem_timedwait=no
4380 cat > $TMPC << EOF
4381 #include <semaphore.h>
4382 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4383 EOF
4384 if compile_prog "" "" ; then
4385     sem_timedwait=yes
4386 fi
4387
4388 ##########################################
4389 # check if we have strchrnul
4390
4391 strchrnul=no
4392 cat > $TMPC << EOF
4393 #include <string.h>
4394 int main(void);
4395 // Use a haystack that the compiler shouldn't be able to constant fold
4396 char *haystack = (char*)&main;
4397 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4398 EOF
4399 if compile_prog "" "" ; then
4400     strchrnul=yes
4401 fi
4402
4403 #########################################
4404 # check if we have st_atim
4405
4406 st_atim=no
4407 cat > $TMPC << EOF
4408 #include <sys/stat.h>
4409 #include <stddef.h>
4410 int main(void) { return offsetof(struct stat, st_atim); }
4411 EOF
4412 if compile_prog "" "" ; then
4413     st_atim=yes
4414 fi
4415
4416 ##########################################
4417 # check if trace backend exists
4418
4419 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4420 if test "$?" -ne 0 ; then
4421   error_exit "invalid trace backends" \
4422       "Please choose supported trace backends."
4423 fi
4424
4425 ##########################################
4426 # For 'ust' backend, test if ust headers are present
4427 if have_backend "ust"; then
4428   cat > $TMPC << EOF
4429 #include <lttng/tracepoint.h>
4430 int main(void) { return 0; }
4431 EOF
4432   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4433     if $pkg_config lttng-ust --exists; then
4434       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4435     else
4436       lttng_ust_libs="-llttng-ust -ldl"
4437     fi
4438     if $pkg_config liburcu-bp --exists; then
4439       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4440     else
4441       urcu_bp_libs="-lurcu-bp"
4442     fi
4443   else
4444     error_exit "Trace backend 'ust' missing lttng-ust header files"
4445   fi
4446 fi
4447
4448 ##########################################
4449 # For 'dtrace' backend, test if 'dtrace' command is present
4450 if have_backend "dtrace"; then
4451   if ! has 'dtrace' ; then
4452     error_exit "dtrace command is not found in PATH $PATH"
4453   fi
4454   trace_backend_stap="no"
4455   if has 'stap' ; then
4456     trace_backend_stap="yes"
4457
4458     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4459     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4460     # instead. QEMU --enable-modules depends on this because the SystemTap
4461     # semaphores are linked into the main binary and not the module's shared
4462     # object.
4463     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4464   fi
4465 fi
4466
4467 ##########################################
4468 # check and set a backend for coroutine
4469
4470 # We prefer ucontext, but it's not always possible. The fallback
4471 # is sigcontext. On Windows the only valid backend is the Windows
4472 # specific one.
4473
4474 ucontext_works=no
4475 if test "$darwin" != "yes"; then
4476   cat > $TMPC << EOF
4477 #include <ucontext.h>
4478 #ifdef __stub_makecontext
4479 #error Ignoring glibc stub makecontext which will always fail
4480 #endif
4481 int main(void) { makecontext(0, 0, 0); return 0; }
4482 EOF
4483   if compile_prog "" "" ; then
4484     ucontext_works=yes
4485   fi
4486 fi
4487
4488 if test "$coroutine" = ""; then
4489   if test "$mingw32" = "yes"; then
4490     coroutine=win32
4491   elif test "$ucontext_works" = "yes"; then
4492     coroutine=ucontext
4493   else
4494     coroutine=sigaltstack
4495   fi
4496 else
4497   case $coroutine in
4498   windows)
4499     if test "$mingw32" != "yes"; then
4500       error_exit "'windows' coroutine backend only valid for Windows"
4501     fi
4502     # Unfortunately the user visible backend name doesn't match the
4503     # coroutine-*.c filename for this case, so we have to adjust it here.
4504     coroutine=win32
4505     ;;
4506   ucontext)
4507     if test "$ucontext_works" != "yes"; then
4508       feature_not_found "ucontext"
4509     fi
4510     ;;
4511   sigaltstack)
4512     if test "$mingw32" = "yes"; then
4513       error_exit "only the 'windows' coroutine backend is valid for Windows"
4514     fi
4515     ;;
4516   *)
4517     error_exit "unknown coroutine backend $coroutine"
4518     ;;
4519   esac
4520 fi
4521
4522 if test "$coroutine_pool" = ""; then
4523   coroutine_pool=yes
4524 fi
4525
4526 if test "$debug_stack_usage" = "yes"; then
4527   if test "$coroutine_pool" = "yes"; then
4528     echo "WARN: disabling coroutine pool for stack usage debugging"
4529     coroutine_pool=no
4530   fi
4531 fi
4532
4533 ##################################################
4534 # SafeStack
4535
4536
4537 if test "$safe_stack" = "yes"; then
4538 cat > $TMPC << EOF
4539 int main(int argc, char *argv[])
4540 {
4541 #if ! __has_feature(safe_stack)
4542 #error SafeStack Disabled
4543 #endif
4544     return 0;
4545 }
4546 EOF
4547   flag="-fsanitize=safe-stack"
4548   # Check that safe-stack is supported and enabled.
4549   if compile_prog "-Werror $flag" "$flag"; then
4550     # Flag needed both at compilation and at linking
4551     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4552     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4553   else
4554     error_exit "SafeStack not supported by your compiler"
4555   fi
4556   if test "$coroutine" != "ucontext"; then
4557     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4558   fi
4559 else
4560 cat > $TMPC << EOF
4561 int main(int argc, char *argv[])
4562 {
4563 #if defined(__has_feature)
4564 #if __has_feature(safe_stack)
4565 #error SafeStack Enabled
4566 #endif
4567 #endif
4568     return 0;
4569 }
4570 EOF
4571 if test "$safe_stack" = "no"; then
4572   # Make sure that safe-stack is disabled
4573   if ! compile_prog "-Werror" ""; then
4574     # SafeStack was already enabled, try to explicitly remove the feature
4575     flag="-fno-sanitize=safe-stack"
4576     if ! compile_prog "-Werror $flag" "$flag"; then
4577       error_exit "Configure cannot disable SafeStack"
4578     fi
4579     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4580     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4581   fi
4582 else # "$safe_stack" = ""
4583   # Set safe_stack to yes or no based on pre-existing flags
4584   if compile_prog "-Werror" ""; then
4585     safe_stack="no"
4586   else
4587     safe_stack="yes"
4588     if test "$coroutine" != "ucontext"; then
4589       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4590     fi
4591   fi
4592 fi
4593 fi
4594
4595 ##########################################
4596 # check if we have open_by_handle_at
4597
4598 open_by_handle_at=no
4599 cat > $TMPC << EOF
4600 #include <fcntl.h>
4601 #if !defined(AT_EMPTY_PATH)
4602 # error missing definition
4603 #else
4604 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4605 #endif
4606 EOF
4607 if compile_prog "" "" ; then
4608     open_by_handle_at=yes
4609 fi
4610
4611 ########################################
4612 # check if we have linux/magic.h
4613
4614 linux_magic_h=no
4615 cat > $TMPC << EOF
4616 #include <linux/magic.h>
4617 int main(void) {
4618   return 0;
4619 }
4620 EOF
4621 if compile_prog "" "" ; then
4622     linux_magic_h=yes
4623 fi
4624
4625 ########################################
4626 # check if we have valgrind/valgrind.h
4627
4628 valgrind_h=no
4629 cat > $TMPC << EOF
4630 #include <valgrind/valgrind.h>
4631 int main(void) {
4632   return 0;
4633 }
4634 EOF
4635 if compile_prog "" "" ; then
4636     valgrind_h=yes
4637 fi
4638
4639 ########################################
4640 # check if environ is declared
4641
4642 has_environ=no
4643 cat > $TMPC << EOF
4644 #include <unistd.h>
4645 int main(void) {
4646     environ = 0;
4647     return 0;
4648 }
4649 EOF
4650 if compile_prog "" "" ; then
4651     has_environ=yes
4652 fi
4653
4654 ########################################
4655 # check if cpuid.h is usable.
4656
4657 cat > $TMPC << EOF
4658 #include <cpuid.h>
4659 int main(void) {
4660     unsigned a, b, c, d;
4661     int max = __get_cpuid_max(0, 0);
4662
4663     if (max >= 1) {
4664         __cpuid(1, a, b, c, d);
4665     }
4666
4667     if (max >= 7) {
4668         __cpuid_count(7, 0, a, b, c, d);
4669     }
4670
4671     return 0;
4672 }
4673 EOF
4674 if compile_prog "" "" ; then
4675     cpuid_h=yes
4676 fi
4677
4678 ##########################################
4679 # avx2 optimization requirement check
4680 #
4681 # There is no point enabling this if cpuid.h is not usable,
4682 # since we won't be able to select the new routines.
4683
4684 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
4685   cat > $TMPC << EOF
4686 #pragma GCC push_options
4687 #pragma GCC target("avx2")
4688 #include <cpuid.h>
4689 #include <immintrin.h>
4690 static int bar(void *a) {
4691     __m256i x = *(__m256i *)a;
4692     return _mm256_testz_si256(x, x);
4693 }
4694 int main(int argc, char *argv[]) { return bar(argv[0]); }
4695 EOF
4696   if compile_object "" ; then
4697     avx2_opt="yes"
4698   else
4699     avx2_opt="no"
4700   fi
4701 fi
4702
4703 ##########################################
4704 # avx512f optimization requirement check
4705 #
4706 # There is no point enabling this if cpuid.h is not usable,
4707 # since we won't be able to select the new routines.
4708 # by default, it is turned off.
4709 # if user explicitly want to enable it, check environment
4710
4711 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
4712   cat > $TMPC << EOF
4713 #pragma GCC push_options
4714 #pragma GCC target("avx512f")
4715 #include <cpuid.h>
4716 #include <immintrin.h>
4717 static int bar(void *a) {
4718     __m512i x = *(__m512i *)a;
4719     return _mm512_test_epi64_mask(x, x);
4720 }
4721 int main(int argc, char *argv[])
4722 {
4723         return bar(argv[0]);
4724 }
4725 EOF
4726   if ! compile_object "" ; then
4727     avx512f_opt="no"
4728   fi
4729 else
4730   avx512f_opt="no"
4731 fi
4732
4733 ########################################
4734 # check if __[u]int128_t is usable.
4735
4736 int128=no
4737 cat > $TMPC << EOF
4738 __int128_t a;
4739 __uint128_t b;
4740 int main (void) {
4741   a = a + b;
4742   b = a * b;
4743   a = a * a;
4744   return 0;
4745 }
4746 EOF
4747 if compile_prog "" "" ; then
4748     int128=yes
4749 fi
4750
4751 #########################################
4752 # See if 128-bit atomic operations are supported.
4753
4754 atomic128=no
4755 if test "$int128" = "yes"; then
4756   cat > $TMPC << EOF
4757 int main(void)
4758 {
4759   unsigned __int128 x = 0, y = 0;
4760   y = __atomic_load_16(&x, 0);
4761   __atomic_store_16(&x, y, 0);
4762   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
4763   return 0;
4764 }
4765 EOF
4766   if compile_prog "" "" ; then
4767     atomic128=yes
4768   fi
4769 fi
4770
4771 cmpxchg128=no
4772 if test "$int128" = yes && test "$atomic128" = no; then
4773   cat > $TMPC << EOF
4774 int main(void)
4775 {
4776   unsigned __int128 x = 0, y = 0;
4777   __sync_val_compare_and_swap_16(&x, y, x);
4778   return 0;
4779 }
4780 EOF
4781   if compile_prog "" "" ; then
4782     cmpxchg128=yes
4783   fi
4784 fi
4785
4786 #########################################
4787 # See if 64-bit atomic operations are supported.
4788 # Note that without __atomic builtins, we can only
4789 # assume atomic loads/stores max at pointer size.
4790
4791 cat > $TMPC << EOF
4792 #include <stdint.h>
4793 int main(void)
4794 {
4795   uint64_t x = 0, y = 0;
4796 #ifdef __ATOMIC_RELAXED
4797   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
4798   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
4799   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
4800   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
4801   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
4802 #else
4803   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
4804   __sync_lock_test_and_set(&x, y);
4805   __sync_val_compare_and_swap(&x, y, 0);
4806   __sync_fetch_and_add(&x, y);
4807 #endif
4808   return 0;
4809 }
4810 EOF
4811 if compile_prog "" "" ; then
4812   atomic64=yes
4813 fi
4814
4815 #########################################
4816 # See if --dynamic-list is supported by the linker
4817 ld_dynamic_list="no"
4818 if test "$static" = "no" ; then
4819     cat > $TMPTXT <<EOF
4820 {
4821   foo;
4822 };
4823 EOF
4824
4825     cat > $TMPC <<EOF
4826 #include <stdio.h>
4827 void foo(void);
4828
4829 void foo(void)
4830 {
4831   printf("foo\n");
4832 }
4833
4834 int main(void)
4835 {
4836   foo();
4837   return 0;
4838 }
4839 EOF
4840
4841     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
4842         ld_dynamic_list="yes"
4843     fi
4844 fi
4845
4846 #########################################
4847 # See if -exported_symbols_list is supported by the linker
4848
4849 ld_exported_symbols_list="no"
4850 if test "$static" = "no" ; then
4851     cat > $TMPTXT <<EOF
4852   _foo
4853 EOF
4854
4855     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
4856         ld_exported_symbols_list="yes"
4857     fi
4858 fi
4859
4860 if  test "$plugins" = "yes" &&
4861     test "$ld_dynamic_list" = "no" &&
4862     test "$ld_exported_symbols_list" = "no" ; then
4863   error_exit \
4864       "Plugin support requires dynamic linking and specifying a set of symbols " \
4865       "that are exported to plugins. Unfortunately your linker doesn't " \
4866       "support the flag (--dynamic-list or -exported_symbols_list) used " \
4867       "for this purpose. You can't build with --static."
4868 fi
4869
4870 ########################################
4871 # See if __attribute__((alias)) is supported.
4872 # This false for Xcode 9, but has been remedied for Xcode 10.
4873 # Unfortunately, travis uses Xcode 9 by default.
4874
4875 attralias=no
4876 cat > $TMPC << EOF
4877 int x = 1;
4878 extern const int y __attribute__((alias("x")));
4879 int main(void) { return 0; }
4880 EOF
4881 if compile_prog "" "" ; then
4882     attralias=yes
4883 fi
4884
4885 ########################################
4886 # check if getauxval is available.
4887
4888 getauxval=no
4889 cat > $TMPC << EOF
4890 #include <sys/auxv.h>
4891 int main(void) {
4892   return getauxval(AT_HWCAP) == 0;
4893 }
4894 EOF
4895 if compile_prog "" "" ; then
4896     getauxval=yes
4897 fi
4898
4899 ########################################
4900 # check if ccache is interfering with
4901 # semantic analysis of macros
4902
4903 unset CCACHE_CPP2
4904 ccache_cpp2=no
4905 cat > $TMPC << EOF
4906 static const int Z = 1;
4907 #define fn() ({ Z; })
4908 #define TAUT(X) ((X) == Z)
4909 #define PAREN(X, Y) (X == Y)
4910 #define ID(X) (X)
4911 int main(int argc, char *argv[])
4912 {
4913     int x = 0, y = 0;
4914     x = ID(x);
4915     x = fn();
4916     fn();
4917     if (PAREN(x, y)) return 0;
4918     if (TAUT(Z)) return 0;
4919     return 0;
4920 }
4921 EOF
4922
4923 if ! compile_object "-Werror"; then
4924     ccache_cpp2=yes
4925 fi
4926
4927 #################################################
4928 # clang does not support glibc + FORTIFY_SOURCE.
4929
4930 if test "$fortify_source" != "no"; then
4931   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
4932     fortify_source="no";
4933   elif test -n "$cxx" && has $cxx &&
4934        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
4935     fortify_source="no";
4936   else
4937     fortify_source="yes"
4938   fi
4939 fi
4940
4941 ###############################################
4942 # Check if copy_file_range is provided by glibc
4943 have_copy_file_range=no
4944 cat > $TMPC << EOF
4945 #include <unistd.h>
4946 int main(void) {
4947   copy_file_range(0, NULL, 0, NULL, 0, 0);
4948   return 0;
4949 }
4950 EOF
4951 if compile_prog "" "" ; then
4952     have_copy_file_range=yes
4953 fi
4954
4955 ##########################################
4956 # check if struct fsxattr is available via linux/fs.h
4957
4958 have_fsxattr=no
4959 cat > $TMPC << EOF
4960 #include <linux/fs.h>
4961 struct fsxattr foo;
4962 int main(void) {
4963   return 0;
4964 }
4965 EOF
4966 if compile_prog "" "" ; then
4967     have_fsxattr=yes
4968 fi
4969
4970 ##########################################
4971 # check for usable membarrier system call
4972 if test "$membarrier" = "yes"; then
4973     have_membarrier=no
4974     if test "$mingw32" = "yes" ; then
4975         have_membarrier=yes
4976     elif test "$linux" = "yes" ; then
4977         cat > $TMPC << EOF
4978     #include <linux/membarrier.h>
4979     #include <sys/syscall.h>
4980     #include <unistd.h>
4981     #include <stdlib.h>
4982     int main(void) {
4983         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
4984         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
4985         exit(0);
4986     }
4987 EOF
4988         if compile_prog "" "" ; then
4989             have_membarrier=yes
4990         fi
4991     fi
4992     if test "$have_membarrier" = "no"; then
4993       feature_not_found "membarrier" "membarrier system call not available"
4994     fi
4995 else
4996     # Do not enable it by default even for Mingw32, because it doesn't
4997     # work on Wine.
4998     membarrier=no
4999 fi
5000
5001 ##########################################
5002 # check if rtnetlink.h exists and is useful
5003 have_rtnetlink=no
5004 cat > $TMPC << EOF
5005 #include <linux/rtnetlink.h>
5006 int main(void) {
5007   return IFLA_PROTO_DOWN;
5008 }
5009 EOF
5010 if compile_prog "" "" ; then
5011     have_rtnetlink=yes
5012 fi
5013
5014 ##########################################
5015 # check for usable AF_VSOCK environment
5016 have_af_vsock=no
5017 cat > $TMPC << EOF
5018 #include <errno.h>
5019 #include <sys/types.h>
5020 #include <sys/socket.h>
5021 #if !defined(AF_VSOCK)
5022 # error missing AF_VSOCK flag
5023 #endif
5024 #include <linux/vm_sockets.h>
5025 int main(void) {
5026     int sock, ret;
5027     struct sockaddr_vm svm;
5028     socklen_t len = sizeof(svm);
5029     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5030     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5031     if ((ret == -1) && (errno == ENOTCONN)) {
5032         return 0;
5033     }
5034     return -1;
5035 }
5036 EOF
5037 if compile_prog "" "" ; then
5038     have_af_vsock=yes
5039 fi
5040
5041 ##########################################
5042 # check for usable AF_ALG environment
5043 have_afalg=no
5044 cat > $TMPC << EOF
5045 #include <errno.h>
5046 #include <sys/types.h>
5047 #include <sys/socket.h>
5048 #include <linux/if_alg.h>
5049 int main(void) {
5050     int sock;
5051     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5052     return sock;
5053 }
5054 EOF
5055 if compile_prog "" "" ; then
5056     have_afalg=yes
5057 fi
5058 if test "$crypto_afalg" = "yes"
5059 then
5060     if test "$have_afalg" != "yes"
5061     then
5062         error_exit "AF_ALG requested but could not be detected"
5063     fi
5064 fi
5065
5066
5067 #################################################
5068 # check for sysmacros.h
5069
5070 have_sysmacros=no
5071 cat > $TMPC << EOF
5072 #include <sys/sysmacros.h>
5073 int main(void) {
5074     return makedev(0, 0);
5075 }
5076 EOF
5077 if compile_prog "" "" ; then
5078     have_sysmacros=yes
5079 fi
5080
5081 ##########################################
5082 # check for _Static_assert()
5083
5084 have_static_assert=no
5085 cat > $TMPC << EOF
5086 _Static_assert(1, "success");
5087 int main(void) {
5088     return 0;
5089 }
5090 EOF
5091 if compile_prog "" "" ; then
5092     have_static_assert=yes
5093 fi
5094
5095 ##########################################
5096 # check for utmpx.h, it is missing e.g. on OpenBSD
5097
5098 have_utmpx=no
5099 cat > $TMPC << EOF
5100 #include <utmpx.h>
5101 struct utmpx user_info;
5102 int main(void) {
5103     return 0;
5104 }
5105 EOF
5106 if compile_prog "" "" ; then
5107     have_utmpx=yes
5108 fi
5109
5110 ##########################################
5111 # check for getrandom()
5112
5113 have_getrandom=no
5114 cat > $TMPC << EOF
5115 #include <sys/random.h>
5116 int main(void) {
5117     return getrandom(0, 0, GRND_NONBLOCK);
5118 }
5119 EOF
5120 if compile_prog "" "" ; then
5121     have_getrandom=yes
5122 fi
5123
5124 ##########################################
5125 # checks for sanitizers
5126
5127 have_asan=no
5128 have_ubsan=no
5129 have_asan_iface_h=no
5130 have_asan_iface_fiber=no
5131
5132 if test "$sanitizers" = "yes" ; then
5133   write_c_skeleton
5134   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5135       have_asan=yes
5136   fi
5137
5138   # we could use a simple skeleton for flags checks, but this also
5139   # detect the static linking issue of ubsan, see also:
5140   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5141   cat > $TMPC << EOF
5142 #include <stdlib.h>
5143 int main(void) {
5144     void *tmp = malloc(10);
5145     if (tmp != NULL) {
5146         return *(int *)(tmp + 2);
5147     }
5148     return 1;
5149 }
5150 EOF
5151   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5152       have_ubsan=yes
5153   fi
5154
5155   if check_include "sanitizer/asan_interface.h" ; then
5156       have_asan_iface_h=yes
5157   fi
5158
5159   cat > $TMPC << EOF
5160 #include <sanitizer/asan_interface.h>
5161 int main(void) {
5162   __sanitizer_start_switch_fiber(0, 0, 0);
5163   return 0;
5164 }
5165 EOF
5166   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5167       have_asan_iface_fiber=yes
5168   fi
5169 fi
5170
5171 ##########################################
5172 # checks for fuzzer
5173 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5174   write_c_fuzzer_skeleton
5175   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5176     have_fuzzer=yes
5177   else
5178     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5179     exit 1
5180   fi
5181 fi
5182
5183 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5184 # keep it separate until that is not the case.
5185 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5186   error_exit "TSAN is not supported with other sanitiziers."
5187 fi
5188 have_tsan=no
5189 have_tsan_iface_fiber=no
5190 if test "$tsan" = "yes" ; then
5191   write_c_skeleton
5192   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5193       have_tsan=yes
5194   fi
5195   cat > $TMPC << EOF
5196 #include <sanitizer/tsan_interface.h>
5197 int main(void) {
5198   __tsan_create_fiber(0);
5199   return 0;
5200 }
5201 EOF
5202   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5203       have_tsan_iface_fiber=yes
5204   fi
5205 fi
5206
5207 ##########################################
5208 # check for libpmem
5209
5210 if test "$libpmem" != "no"; then
5211         if $pkg_config --exists "libpmem"; then
5212                 libpmem="yes"
5213                 libpmem_libs=$($pkg_config --libs libpmem)
5214                 libpmem_cflags=$($pkg_config --cflags libpmem)
5215         else
5216                 if test "$libpmem" = "yes" ; then
5217                         feature_not_found "libpmem" "Install nvml or pmdk"
5218                 fi
5219                 libpmem="no"
5220         fi
5221 fi
5222
5223 ##########################################
5224 # check for libdaxctl
5225
5226 if test "$libdaxctl" != "no"; then
5227         if $pkg_config --atleast-version=57 "libdaxctl"; then
5228                 libdaxctl="yes"
5229                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5230                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5231         else
5232                 if test "$libdaxctl" = "yes" ; then
5233                         feature_not_found "libdaxctl" "Install libdaxctl"
5234                 fi
5235                 libdaxctl="no"
5236         fi
5237 fi
5238
5239 ##########################################
5240 # check for slirp
5241
5242 case "$slirp" in
5243   auto | enabled | internal)
5244     # Simpler to always update submodule, even if not needed.
5245     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5246       git_submodules="${git_submodules} slirp"
5247     fi
5248     ;;
5249 esac
5250
5251 ##########################################
5252 # check for usable __NR_keyctl syscall
5253
5254 if test "$linux" = "yes" ; then
5255
5256     have_keyring=no
5257     cat > $TMPC << EOF
5258 #include <errno.h>
5259 #include <asm/unistd.h>
5260 #include <linux/keyctl.h>
5261 #include <unistd.h>
5262 int main(void) {
5263     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5264 }
5265 EOF
5266     if compile_prog "" "" ; then
5267         have_keyring=yes
5268     fi
5269 fi
5270 if test "$secret_keyring" != "no"
5271 then
5272     if test "$have_keyring" = "yes"
5273     then
5274         secret_keyring=yes
5275     else
5276         if test "$secret_keyring" = "yes"
5277         then
5278             error_exit "syscall __NR_keyctl requested, \
5279 but not implemented on your system"
5280         else
5281             secret_keyring=no
5282         fi
5283     fi
5284 fi
5285
5286 ##########################################
5287 # End of CC checks
5288 # After here, no more $cc or $ld runs
5289
5290 write_c_skeleton
5291
5292 if test "$gcov" = "yes" ; then
5293   :
5294 elif test "$fortify_source" = "yes" ; then
5295   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5296   debug=no
5297 fi
5298
5299 case "$ARCH" in
5300 alpha)
5301   # Ensure there's only a single GP
5302   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5303 ;;
5304 esac
5305
5306 if test "$gprof" = "yes" ; then
5307   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5308   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5309 fi
5310
5311 if test "$have_asan" = "yes"; then
5312   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5313   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5314   if test "$have_asan_iface_h" = "no" ; then
5315       echo "ASAN build enabled, but ASAN header missing." \
5316            "Without code annotation, the report may be inferior."
5317   elif test "$have_asan_iface_fiber" = "no" ; then
5318       echo "ASAN build enabled, but ASAN header is too old." \
5319            "Without code annotation, the report may be inferior."
5320   fi
5321 fi
5322 if test "$have_tsan" = "yes" ; then
5323   if test "$have_tsan_iface_fiber" = "yes" ; then
5324     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5325     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5326   else
5327     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5328   fi
5329 elif test "$tsan" = "yes" ; then
5330   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5331 fi
5332 if test "$have_ubsan" = "yes"; then
5333   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5334   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5335 fi
5336
5337 ##########################################
5338
5339 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5340 if test "$solaris" = "no" && test "$tsan" = "no"; then
5341     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5342         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5343     fi
5344 fi
5345
5346 # Use ASLR, no-SEH and DEP if available
5347 if test "$mingw32" = "yes" ; then
5348     flags="--no-seh --nxcompat"
5349
5350     # Disable ASLR for debug builds to allow debugging with gdb
5351     if test "$debug" = "no" ; then
5352         flags="--dynamicbase $flags"
5353     fi
5354
5355     for flag in $flags; do
5356         if ld_has $flag ; then
5357             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5358         fi
5359     done
5360 fi
5361
5362 # We can only support ivshmem if we have eventfd
5363 if [ "$eventfd" = "yes" ]; then
5364   ivshmem=yes
5365 fi
5366
5367 # Probe for guest agent support/options
5368
5369 if [ "$guest_agent" != "no" ]; then
5370   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5371       guest_agent=no
5372   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5373       guest_agent=yes
5374   elif [ "$guest_agent" != yes ]; then
5375       guest_agent=no
5376   else
5377       error_exit "Guest agent is not supported on this platform"
5378   fi
5379 fi
5380
5381 # Guest agent Window MSI  package
5382
5383 if test "$guest_agent" != yes; then
5384   if test "$guest_agent_msi" = yes; then
5385     error_exit "MSI guest agent package requires guest agent enabled"
5386   fi
5387   guest_agent_msi=no
5388 elif test "$mingw32" != "yes"; then
5389   if test "$guest_agent_msi" = "yes"; then
5390     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
5391   fi
5392   guest_agent_msi=no
5393 elif ! has wixl; then
5394   if test "$guest_agent_msi" = "yes"; then
5395     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
5396   fi
5397   guest_agent_msi=no
5398 else
5399   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
5400   # disabled explicitly
5401   if test "$guest_agent_msi" != "no"; then
5402     guest_agent_msi=yes
5403   fi
5404 fi
5405
5406 if test "$guest_agent_msi" = "yes"; then
5407   if test "$guest_agent_with_vss" = "yes"; then
5408     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
5409   fi
5410
5411   if test "$QEMU_GA_MANUFACTURER" = ""; then
5412     QEMU_GA_MANUFACTURER=QEMU
5413   fi
5414
5415   if test "$QEMU_GA_DISTRO" = ""; then
5416     QEMU_GA_DISTRO=Linux
5417   fi
5418
5419   if test "$QEMU_GA_VERSION" = ""; then
5420       QEMU_GA_VERSION=$(cat $source_path/VERSION)
5421   fi
5422
5423   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
5424
5425   case "$cpu" in
5426   x86_64)
5427     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
5428     ;;
5429   i386)
5430     QEMU_GA_MSI_ARCH="-D Arch=32"
5431     ;;
5432   *)
5433     error_exit "CPU $cpu not supported for building installation package"
5434     ;;
5435   esac
5436 fi
5437
5438 # Mac OS X ships with a broken assembler
5439 roms=
5440 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5441         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5442         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5443     # Different host OS linkers have different ideas about the name of the ELF
5444     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5445     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5446     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5447         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5448             ld_i386_emulation="$emu"
5449             roms="optionrom"
5450             break
5451         fi
5452     done
5453 fi
5454
5455 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5456 if test "$cpu" = "s390x" ; then
5457   write_c_skeleton
5458   if compile_prog "-march=z900" ""; then
5459     roms="$roms s390-ccw"
5460     # SLOF is required for building the s390-ccw firmware on s390x,
5461     # since it is using the libnet code from SLOF for network booting.
5462     if test -e "${source_path}/.git" ; then
5463       git_submodules="${git_submodules} roms/SLOF"
5464     fi
5465   fi
5466 fi
5467
5468 # Check that the C++ compiler exists and works with the C compiler.
5469 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5470 if has $cxx; then
5471     cat > $TMPC <<EOF
5472 int c_function(void);
5473 int main(void) { return c_function(); }
5474 EOF
5475
5476     compile_object
5477
5478     cat > $TMPCXX <<EOF
5479 extern "C" {
5480    int c_function(void);
5481 }
5482 int c_function(void) { return 42; }
5483 EOF
5484
5485     update_cxxflags
5486
5487     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5488         # C++ compiler $cxx works ok with C compiler $cc
5489         :
5490     else
5491         echo "C++ compiler $cxx does not work with C compiler $cc"
5492         echo "Disabling C++ specific optional code"
5493         cxx=
5494     fi
5495 else
5496     echo "No C++ compiler available; disabling C++ specific optional code"
5497     cxx=
5498 fi
5499
5500 if test $git_update = 'yes' ; then
5501     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
5502 fi
5503
5504 config_host_mak="config-host.mak"
5505
5506 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5507 echo >> $config_host_mak
5508
5509 echo all: >> $config_host_mak
5510 echo "GIT=$git" >> $config_host_mak
5511 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5512 echo "GIT_UPDATE=$git_update" >> $config_host_mak
5513
5514 echo "ARCH=$ARCH" >> $config_host_mak
5515
5516 if test "$debug_tcg" = "yes" ; then
5517   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5518 fi
5519 if test "$strip_opt" = "yes" ; then
5520   echo "STRIP=${strip}" >> $config_host_mak
5521 fi
5522 if test "$bigendian" = "yes" ; then
5523   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5524 fi
5525 if test "$mingw32" = "yes" ; then
5526   echo "CONFIG_WIN32=y" >> $config_host_mak
5527   if test "$guest_agent_with_vss" = "yes" ; then
5528     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5529     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5530     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5531   fi
5532   if test "$guest_agent_ntddscsi" = "yes" ; then
5533     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5534   fi
5535   if test "$guest_agent_msi" = "yes"; then
5536     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
5537     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5538     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
5539     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
5540     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5541     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5542     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5543   fi
5544 else
5545   echo "CONFIG_POSIX=y" >> $config_host_mak
5546 fi
5547
5548 if test "$linux" = "yes" ; then
5549   echo "CONFIG_LINUX=y" >> $config_host_mak
5550 fi
5551
5552 if test "$darwin" = "yes" ; then
5553   echo "CONFIG_DARWIN=y" >> $config_host_mak
5554 fi
5555
5556 if test "$solaris" = "yes" ; then
5557   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5558 fi
5559 if test "$haiku" = "yes" ; then
5560   echo "CONFIG_HAIKU=y" >> $config_host_mak
5561 fi
5562 if test "$static" = "yes" ; then
5563   echo "CONFIG_STATIC=y" >> $config_host_mak
5564 fi
5565 if test "$profiler" = "yes" ; then
5566   echo "CONFIG_PROFILER=y" >> $config_host_mak
5567 fi
5568 if test "$want_tools" = "yes" ; then
5569   echo "CONFIG_TOOLS=y" >> $config_host_mak
5570 fi
5571 if test "$guest_agent" = "yes" ; then
5572   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5573 fi
5574 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5575 if test "$vde" = "yes" ; then
5576   echo "CONFIG_VDE=y" >> $config_host_mak
5577   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5578 fi
5579 if test "$netmap" = "yes" ; then
5580   echo "CONFIG_NETMAP=y" >> $config_host_mak
5581 fi
5582 if test "$l2tpv3" = "yes" ; then
5583   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5584 fi
5585 if test "$gprof" = "yes" ; then
5586   echo "CONFIG_GPROF=y" >> $config_host_mak
5587 fi
5588 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5589 for drv in $audio_drv_list; do
5590     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5591     echo "$def=y" >> $config_host_mak
5592 done
5593 if test "$alsa" = "yes" ; then
5594     echo "CONFIG_ALSA=y" >> $config_host_mak
5595 fi
5596 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
5597 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
5598 if test "$libpulse" = "yes" ; then
5599     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
5600 fi
5601 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
5602 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
5603 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
5604 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
5605 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
5606 if test "$libjack" = "yes" ; then
5607     echo "CONFIG_LIBJACK=y" >> $config_host_mak
5608 fi
5609 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
5610 if test "$audio_win_int" = "yes" ; then
5611   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
5612 fi
5613 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
5614 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
5615 if test "$xfs" = "yes" ; then
5616   echo "CONFIG_XFS=y" >> $config_host_mak
5617 fi
5618 qemu_version=$(head $source_path/VERSION)
5619 echo "PKGVERSION=$pkgversion" >>$config_host_mak
5620 echo "SRC_PATH=$source_path" >> $config_host_mak
5621 echo "TARGET_DIRS=$target_list" >> $config_host_mak
5622 if test "$modules" = "yes"; then
5623   # $shacmd can generate a hash started with digit, which the compiler doesn't
5624   # like as an symbol. So prefix it with an underscore
5625   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
5626   echo "CONFIG_MODULES=y" >> $config_host_mak
5627 fi
5628 if test "$module_upgrades" = "yes"; then
5629   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
5630 fi
5631 if test "$pipe2" = "yes" ; then
5632   echo "CONFIG_PIPE2=y" >> $config_host_mak
5633 fi
5634 if test "$accept4" = "yes" ; then
5635   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
5636 fi
5637 if test "$splice" = "yes" ; then
5638   echo "CONFIG_SPLICE=y" >> $config_host_mak
5639 fi
5640 if test "$eventfd" = "yes" ; then
5641   echo "CONFIG_EVENTFD=y" >> $config_host_mak
5642 fi
5643 if test "$memfd" = "yes" ; then
5644   echo "CONFIG_MEMFD=y" >> $config_host_mak
5645 fi
5646 if test "$have_usbfs" = "yes" ; then
5647   echo "CONFIG_USBFS=y" >> $config_host_mak
5648 fi
5649 if test "$fallocate" = "yes" ; then
5650   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
5651 fi
5652 if test "$fallocate_punch_hole" = "yes" ; then
5653   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
5654 fi
5655 if test "$fallocate_zero_range" = "yes" ; then
5656   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
5657 fi
5658 if test "$posix_fallocate" = "yes" ; then
5659   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
5660 fi
5661 if test "$sync_file_range" = "yes" ; then
5662   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
5663 fi
5664 if test "$fiemap" = "yes" ; then
5665   echo "CONFIG_FIEMAP=y" >> $config_host_mak
5666 fi
5667 if test "$dup3" = "yes" ; then
5668   echo "CONFIG_DUP3=y" >> $config_host_mak
5669 fi
5670 if test "$ppoll" = "yes" ; then
5671   echo "CONFIG_PPOLL=y" >> $config_host_mak
5672 fi
5673 if test "$prctl_pr_set_timerslack" = "yes" ; then
5674   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
5675 fi
5676 if test "$epoll" = "yes" ; then
5677   echo "CONFIG_EPOLL=y" >> $config_host_mak
5678 fi
5679 if test "$epoll_create1" = "yes" ; then
5680   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
5681 fi
5682 if test "$sendfile" = "yes" ; then
5683   echo "CONFIG_SENDFILE=y" >> $config_host_mak
5684 fi
5685 if test "$timerfd" = "yes" ; then
5686   echo "CONFIG_TIMERFD=y" >> $config_host_mak
5687 fi
5688 if test "$setns" = "yes" ; then
5689   echo "CONFIG_SETNS=y" >> $config_host_mak
5690 fi
5691 if test "$clock_adjtime" = "yes" ; then
5692   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
5693 fi
5694 if test "$syncfs" = "yes" ; then
5695   echo "CONFIG_SYNCFS=y" >> $config_host_mak
5696 fi
5697 if test "$inotify" = "yes" ; then
5698   echo "CONFIG_INOTIFY=y" >> $config_host_mak
5699 fi
5700 if test "$inotify1" = "yes" ; then
5701   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
5702 fi
5703 if test "$sem_timedwait" = "yes" ; then
5704   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
5705 fi
5706 if test "$strchrnul" = "yes" ; then
5707   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
5708 fi
5709 if test "$st_atim" = "yes" ; then
5710   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
5711 fi
5712 if test "$byteswap_h" = "yes" ; then
5713   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
5714 fi
5715 if test "$bswap_h" = "yes" ; then
5716   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
5717 fi
5718 if test "$gio" = "yes" ; then
5719     echo "CONFIG_GIO=y" >> $config_host_mak
5720     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
5721     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
5722     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
5723 fi
5724 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
5725 if test "$gnutls" = "yes" ; then
5726   echo "CONFIG_GNUTLS=y" >> $config_host_mak
5727   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
5728   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
5729 fi
5730 if test "$gcrypt" = "yes" ; then
5731   echo "CONFIG_GCRYPT=y" >> $config_host_mak
5732   if test "$gcrypt_hmac" = "yes" ; then
5733     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
5734   fi
5735   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
5736   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
5737 fi
5738 if test "$nettle" = "yes" ; then
5739   echo "CONFIG_NETTLE=y" >> $config_host_mak
5740   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
5741   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
5742   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
5743 fi
5744 if test "$qemu_private_xts" = "yes" ; then
5745   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
5746 fi
5747 if test "$tasn1" = "yes" ; then
5748   echo "CONFIG_TASN1=y" >> $config_host_mak
5749 fi
5750 if test "$auth_pam" = "yes" ; then
5751     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
5752 fi
5753 if test "$have_broken_size_max" = "yes" ; then
5754     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
5755 fi
5756 if test "$have_openpty" = "yes" ; then
5757     echo "HAVE_OPENPTY=y" >> $config_host_mak
5758 fi
5759
5760 # Work around a system header bug with some kernel/XFS header
5761 # versions where they both try to define 'struct fsxattr':
5762 # xfs headers will not try to redefine structs from linux headers
5763 # if this macro is set.
5764 if test "$have_fsxattr" = "yes" ; then
5765     echo "HAVE_FSXATTR=y" >> $config_host_mak
5766 fi
5767 if test "$have_copy_file_range" = "yes" ; then
5768     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
5769 fi
5770 if test "$vte" = "yes" ; then
5771   echo "CONFIG_VTE=y" >> $config_host_mak
5772   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
5773   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
5774 fi
5775 if test "$virglrenderer" = "yes" ; then
5776   echo "CONFIG_VIRGL=y" >> $config_host_mak
5777   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
5778   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
5779 fi
5780 if test "$xen" = "enabled" ; then
5781   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
5782   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
5783   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
5784   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
5785 fi
5786 if test "$linux_aio" = "yes" ; then
5787   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
5788 fi
5789 if test "$linux_io_uring" = "yes" ; then
5790   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
5791   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
5792   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
5793 fi
5794 if test "$vhost_scsi" = "yes" ; then
5795   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
5796 fi
5797 if test "$vhost_net" = "yes" ; then
5798   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
5799 fi
5800 if test "$vhost_net_user" = "yes" ; then
5801   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
5802 fi
5803 if test "$vhost_net_vdpa" = "yes" ; then
5804   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
5805 fi
5806 if test "$vhost_crypto" = "yes" ; then
5807   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
5808 fi
5809 if test "$vhost_vsock" = "yes" ; then
5810   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
5811   if test "$vhost_user" = "yes" ; then
5812     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
5813   fi
5814 fi
5815 if test "$vhost_kernel" = "yes" ; then
5816   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
5817 fi
5818 if test "$vhost_user" = "yes" ; then
5819   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
5820 fi
5821 if test "$vhost_vdpa" = "yes" ; then
5822   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
5823 fi
5824 if test "$vhost_user_fs" = "yes" ; then
5825   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
5826 fi
5827 if test "$iovec" = "yes" ; then
5828   echo "CONFIG_IOVEC=y" >> $config_host_mak
5829 fi
5830 if test "$preadv" = "yes" ; then
5831   echo "CONFIG_PREADV=y" >> $config_host_mak
5832 fi
5833 if test "$membarrier" = "yes" ; then
5834   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
5835 fi
5836 if test "$signalfd" = "yes" ; then
5837   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
5838 fi
5839 if test "$optreset" = "yes" ; then
5840   echo "HAVE_OPTRESET=y" >> $config_host_mak
5841 fi
5842 if test "$tcg" = "enabled"; then
5843   if test "$tcg_interpreter" = "yes" ; then
5844     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
5845   fi
5846 fi
5847 if test "$fdatasync" = "yes" ; then
5848   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
5849 fi
5850 if test "$madvise" = "yes" ; then
5851   echo "CONFIG_MADVISE=y" >> $config_host_mak
5852 fi
5853 if test "$posix_madvise" = "yes" ; then
5854   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
5855 fi
5856 if test "$posix_memalign" = "yes" ; then
5857   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
5858 fi
5859 if test "$spice" = "yes" ; then
5860   echo "CONFIG_SPICE=y" >> $config_host_mak
5861   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
5862   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
5863 fi
5864
5865 if test "$smartcard" = "yes" ; then
5866   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
5867   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
5868   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
5869 fi
5870
5871 if test "$libusb" = "yes" ; then
5872   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
5873   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
5874   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
5875 fi
5876
5877 if test "$usb_redir" = "yes" ; then
5878   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
5879   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
5880   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
5881 fi
5882
5883 if test "$opengl" = "yes" ; then
5884   echo "CONFIG_OPENGL=y" >> $config_host_mak
5885   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
5886   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
5887   if test "$opengl_dmabuf" = "yes" ; then
5888     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
5889   fi
5890 fi
5891
5892 if test "$gbm" = "yes" ; then
5893     echo "CONFIG_GBM=y" >> $config_host_mak
5894     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
5895     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
5896 fi
5897
5898
5899 if test "$avx2_opt" = "yes" ; then
5900   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
5901 fi
5902
5903 if test "$avx512f_opt" = "yes" ; then
5904   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
5905 fi
5906
5907 # XXX: suppress that
5908 if [ "$bsd" = "yes" ] ; then
5909   echo "CONFIG_BSD=y" >> $config_host_mak
5910 fi
5911
5912 if test "$qom_cast_debug" = "yes" ; then
5913   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
5914 fi
5915
5916 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
5917 if test "$coroutine_pool" = "yes" ; then
5918   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
5919 else
5920   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
5921 fi
5922
5923 if test "$debug_stack_usage" = "yes" ; then
5924   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
5925 fi
5926
5927 if test "$crypto_afalg" = "yes" ; then
5928   echo "CONFIG_AF_ALG=y" >> $config_host_mak
5929 fi
5930
5931 if test "$open_by_handle_at" = "yes" ; then
5932   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
5933 fi
5934
5935 if test "$linux_magic_h" = "yes" ; then
5936   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
5937 fi
5938
5939 if test "$valgrind_h" = "yes" ; then
5940   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
5941 fi
5942
5943 if test "$have_asan_iface_fiber" = "yes" ; then
5944     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
5945 fi
5946
5947 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
5948     echo "CONFIG_TSAN=y" >> $config_host_mak
5949 fi
5950
5951 if test "$has_environ" = "yes" ; then
5952   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
5953 fi
5954
5955 if test "$cpuid_h" = "yes" ; then
5956   echo "CONFIG_CPUID_H=y" >> $config_host_mak
5957 fi
5958
5959 if test "$int128" = "yes" ; then
5960   echo "CONFIG_INT128=y" >> $config_host_mak
5961 fi
5962
5963 if test "$atomic128" = "yes" ; then
5964   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
5965 fi
5966
5967 if test "$cmpxchg128" = "yes" ; then
5968   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
5969 fi
5970
5971 if test "$atomic64" = "yes" ; then
5972   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
5973 fi
5974
5975 if test "$attralias" = "yes" ; then
5976   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
5977 fi
5978
5979 if test "$getauxval" = "yes" ; then
5980   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
5981 fi
5982
5983 if test "$libssh" = "yes" ; then
5984   echo "CONFIG_LIBSSH=y" >> $config_host_mak
5985   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
5986   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
5987 fi
5988
5989 if test "$live_block_migration" = "yes" ; then
5990   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
5991 fi
5992
5993 if test "$tpm" = "yes"; then
5994   echo 'CONFIG_TPM=y' >> $config_host_mak
5995 fi
5996
5997 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
5998 if have_backend "nop"; then
5999   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
6000 fi
6001 if have_backend "simple"; then
6002   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
6003   # Set the appropriate trace file.
6004   trace_file="\"$trace_file-\" FMT_pid"
6005 fi
6006 if have_backend "log"; then
6007   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
6008 fi
6009 if have_backend "ust"; then
6010   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
6011   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
6012   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
6013 fi
6014 if have_backend "dtrace"; then
6015   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
6016   if test "$trace_backend_stap" = "yes" ; then
6017     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
6018   fi
6019 fi
6020 if have_backend "ftrace"; then
6021   if test "$linux" = "yes" ; then
6022     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
6023   else
6024     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
6025   fi
6026 fi
6027 if have_backend "syslog"; then
6028   if test "$posix_syslog" = "yes" ; then
6029     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
6030   else
6031     feature_not_found "syslog(trace backend)" "syslog not available"
6032   fi
6033 fi
6034 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6035
6036 if test "$rdma" = "yes" ; then
6037   echo "CONFIG_RDMA=y" >> $config_host_mak
6038   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6039 fi
6040
6041 if test "$pvrdma" = "yes" ; then
6042   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6043 fi
6044
6045 if test "$have_rtnetlink" = "yes" ; then
6046   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6047 fi
6048
6049 if test "$libxml2" = "yes" ; then
6050   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6051   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6052   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6053 fi
6054
6055 if test "$replication" = "yes" ; then
6056   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6057 fi
6058
6059 if test "$have_af_vsock" = "yes" ; then
6060   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6061 fi
6062
6063 if test "$have_sysmacros" = "yes" ; then
6064   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6065 fi
6066
6067 if test "$have_static_assert" = "yes" ; then
6068   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6069 fi
6070
6071 if test "$have_utmpx" = "yes" ; then
6072   echo "HAVE_UTMPX=y" >> $config_host_mak
6073 fi
6074 if test "$have_getrandom" = "yes" ; then
6075   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6076 fi
6077 if test "$ivshmem" = "yes" ; then
6078   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6079 fi
6080 if test "$debug_mutex" = "yes" ; then
6081   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6082 fi
6083
6084 # Hold two types of flag:
6085 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6086 #                                     a thread we have a handle to
6087 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6088 #                                     platform
6089 if test "$pthread_setname_np_w_tid" = "yes" ; then
6090   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6091   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6092 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6093   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6094   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6095 fi
6096
6097 if test "$libpmem" = "yes" ; then
6098   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6099   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6100   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6101 fi
6102
6103 if test "$libdaxctl" = "yes" ; then
6104   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6105   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6106 fi
6107
6108 if test "$bochs" = "yes" ; then
6109   echo "CONFIG_BOCHS=y" >> $config_host_mak
6110 fi
6111 if test "$cloop" = "yes" ; then
6112   echo "CONFIG_CLOOP=y" >> $config_host_mak
6113 fi
6114 if test "$dmg" = "yes" ; then
6115   echo "CONFIG_DMG=y" >> $config_host_mak
6116 fi
6117 if test "$qcow1" = "yes" ; then
6118   echo "CONFIG_QCOW1=y" >> $config_host_mak
6119 fi
6120 if test "$vdi" = "yes" ; then
6121   echo "CONFIG_VDI=y" >> $config_host_mak
6122 fi
6123 if test "$vvfat" = "yes" ; then
6124   echo "CONFIG_VVFAT=y" >> $config_host_mak
6125 fi
6126 if test "$qed" = "yes" ; then
6127   echo "CONFIG_QED=y" >> $config_host_mak
6128 fi
6129 if test "$parallels" = "yes" ; then
6130   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6131 fi
6132 if test "$sheepdog" = "yes" ; then
6133   add_to deprecated_features "sheepdog"
6134   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6135 fi
6136 if test "$have_mlockall" = "yes" ; then
6137   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6138 fi
6139 if test "$fuzzing" = "yes" ; then
6140   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6141   # needed CFLAGS have already been provided
6142   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6143     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6144     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6145   else
6146     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6147   fi
6148 fi
6149
6150 if test "$plugins" = "yes" ; then
6151     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6152     # Copy the export object list to the build dir
6153     if test "$ld_dynamic_list" = "yes" ; then
6154         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6155         ld_symbols=qemu-plugins-ld.symbols
6156         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6157     elif test "$ld_exported_symbols_list" = "yes" ; then
6158         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6159         ld64_symbols=qemu-plugins-ld64.symbols
6160         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6161         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6162             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6163     else
6164         error_exit \
6165             "If \$plugins=yes, either \$ld_dynamic_list or " \
6166             "\$ld_exported_symbols_list should have been set to 'yes'."
6167     fi
6168 fi
6169
6170 if test -n "$gdb_bin"; then
6171     gdb_version=$($gdb_bin --version | head -n 1)
6172     if version_ge ${gdb_version##* } 8.3.1; then
6173         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6174     fi
6175 fi
6176
6177 if test "$secret_keyring" = "yes" ; then
6178   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6179 fi
6180
6181 echo "ROMS=$roms" >> $config_host_mak
6182 echo "MAKE=$make" >> $config_host_mak
6183 echo "PYTHON=$python" >> $config_host_mak
6184 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6185 echo "MESON=$meson" >> $config_host_mak
6186 echo "NINJA=$ninja" >> $config_host_mak
6187 echo "CC=$cc" >> $config_host_mak
6188 if $iasl -h > /dev/null 2>&1; then
6189   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6190 fi
6191 echo "CXX=$cxx" >> $config_host_mak
6192 echo "OBJCC=$objcc" >> $config_host_mak
6193 echo "AR=$ar" >> $config_host_mak
6194 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6195 echo "AS=$as" >> $config_host_mak
6196 echo "CCAS=$ccas" >> $config_host_mak
6197 echo "CPP=$cpp" >> $config_host_mak
6198 echo "OBJCOPY=$objcopy" >> $config_host_mak
6199 echo "LD=$ld" >> $config_host_mak
6200 echo "RANLIB=$ranlib" >> $config_host_mak
6201 echo "NM=$nm" >> $config_host_mak
6202 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6203 echo "WINDRES=$windres" >> $config_host_mak
6204 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6205 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6206 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6207 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6208 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6209 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6210 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6211 echo "EXESUF=$EXESUF" >> $config_host_mak
6212 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6213 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6214 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6215 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6216 if test "$gcov" = "yes" ; then
6217   echo "CONFIG_GCOV=y" >> $config_host_mak
6218 fi
6219
6220 if test "$fuzzing" != "no"; then
6221     echo "CONFIG_FUZZ=y" >> $config_host_mak
6222 fi
6223 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6224
6225 if test "$rng_none" = "yes"; then
6226   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6227 fi
6228
6229 # use included Linux headers
6230 if test "$linux" = "yes" ; then
6231   mkdir -p linux-headers
6232   case "$cpu" in
6233   i386|x86_64|x32)
6234     linux_arch=x86
6235     ;;
6236   ppc|ppc64|ppc64le)
6237     linux_arch=powerpc
6238     ;;
6239   s390x)
6240     linux_arch=s390
6241     ;;
6242   aarch64)
6243     linux_arch=arm64
6244     ;;
6245   mips64)
6246     linux_arch=mips
6247     ;;
6248   *)
6249     # For most CPUs the kernel architecture name and QEMU CPU name match.
6250     linux_arch="$cpu"
6251     ;;
6252   esac
6253     # For non-KVM architectures we will not have asm headers
6254     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6255       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6256     fi
6257 fi
6258
6259 for target in $target_list; do
6260     target_dir="$target"
6261     target_name=$(echo $target | cut -d '-' -f 1)
6262     mkdir -p $target_dir
6263     case $target in
6264         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6265         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6266     esac
6267 done
6268
6269 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6270 if test "$default_targets" = "yes"; then
6271   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6272 fi
6273
6274 if test "$numa" = "yes"; then
6275   echo "CONFIG_NUMA=y" >> $config_host_mak
6276   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6277 fi
6278
6279 if test "$ccache_cpp2" = "yes"; then
6280   echo "export CCACHE_CPP2=y" >> $config_host_mak
6281 fi
6282
6283 if test "$safe_stack" = "yes"; then
6284   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6285 fi
6286
6287 # If we're using a separate build tree, set it up now.
6288 # DIRS are directories which we simply mkdir in the build tree;
6289 # LINKS are things to symlink back into the source tree
6290 # (these can be both files and directories).
6291 # Caution: do not add files or directories here using wildcards. This
6292 # will result in problems later if a new file matching the wildcard is
6293 # added to the source tree -- nothing will cause configure to be rerun
6294 # so the build tree will be missing the link back to the new file, and
6295 # tests might fail. Prefer to keep the relevant files in their own
6296 # directory and symlink the directory instead.
6297 # UNLINK is used to remove symlinks from older development versions
6298 # that might get into the way when doing "git update" without doing
6299 # a "make distclean" in between.
6300 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6301 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6302 DIRS="$DIRS docs docs/interop fsdev scsi"
6303 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6304 DIRS="$DIRS roms/seabios"
6305 DIRS="$DIRS contrib/plugins/"
6306 LINKS="Makefile"
6307 LINKS="$LINKS tests/tcg/lm32/Makefile"
6308 LINKS="$LINKS tests/tcg/Makefile.target"
6309 LINKS="$LINKS pc-bios/optionrom/Makefile"
6310 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6311 LINKS="$LINKS roms/seabios/Makefile"
6312 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6313 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6314 LINKS="$LINKS tests/acceptance tests/data"
6315 LINKS="$LINKS tests/qemu-iotests/check"
6316 LINKS="$LINKS python"
6317 LINKS="$LINKS contrib/plugins/Makefile "
6318 UNLINK="pc-bios/keymaps"
6319 for bios_file in \
6320     $source_path/pc-bios/*.bin \
6321     $source_path/pc-bios/*.elf \
6322     $source_path/pc-bios/*.lid \
6323     $source_path/pc-bios/*.rom \
6324     $source_path/pc-bios/*.dtb \
6325     $source_path/pc-bios/*.img \
6326     $source_path/pc-bios/openbios-* \
6327     $source_path/pc-bios/u-boot.* \
6328     $source_path/pc-bios/edk2-*.fd.bz2 \
6329     $source_path/pc-bios/palcode-*
6330 do
6331     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6332 done
6333 mkdir -p $DIRS
6334 for f in $LINKS ; do
6335     if [ -e "$source_path/$f" ]; then
6336         symlink "$source_path/$f" "$f"
6337     fi
6338 done
6339 for f in $UNLINK ; do
6340     if [ -L "$f" ]; then
6341         rm -f "$f"
6342     fi
6343 done
6344
6345 (for i in $cross_cc_vars; do
6346   export $i
6347 done
6348 export target_list source_path use_containers
6349 $source_path/tests/tcg/configure.sh)
6350
6351 # temporary config to build submodules
6352 for rom in seabios; do
6353     config_mak=roms/$rom/config.mak
6354     echo "# Automatically generated by configure - do not modify" > $config_mak
6355     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6356     echo "AS=$as" >> $config_mak
6357     echo "CCAS=$ccas" >> $config_mak
6358     echo "CC=$cc" >> $config_mak
6359     echo "BCC=bcc" >> $config_mak
6360     echo "CPP=$cpp" >> $config_mak
6361     echo "OBJCOPY=objcopy" >> $config_mak
6362     echo "IASL=$iasl" >> $config_mak
6363     echo "LD=$ld" >> $config_mak
6364     echo "RANLIB=$ranlib" >> $config_mak
6365 done
6366
6367 if test "$skip_meson" = no; then
6368 cross="config-meson.cross.new"
6369 meson_quote() {
6370     echo "'$(echo $* | sed "s/ /','/g")'"
6371 }
6372
6373 echo "# Automatically generated by configure - do not modify" > $cross
6374 echo "[properties]" >> $cross
6375 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6376 echo "[built-in options]" >> $cross
6377 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6378 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6379 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6380 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6381 echo "[binaries]" >> $cross
6382 echo "c = [$(meson_quote $cc)]" >> $cross
6383 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6384 echo "ar = [$(meson_quote $ar)]" >> $cross
6385 echo "nm = [$(meson_quote $nm)]" >> $cross
6386 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6387 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6388 if has $sdl2_config; then
6389   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6390 fi
6391 echo "strip = [$(meson_quote $strip)]" >> $cross
6392 echo "windres = [$(meson_quote $windres)]" >> $cross
6393 if test -n "$cross_prefix"; then
6394     cross_arg="--cross-file config-meson.cross"
6395     echo "[host_machine]" >> $cross
6396     if test "$mingw32" = "yes" ; then
6397         echo "system = 'windows'" >> $cross
6398     fi
6399     if test "$linux" = "yes" ; then
6400         echo "system = 'linux'" >> $cross
6401     fi
6402     case "$ARCH" in
6403         i386|x86_64)
6404             echo "cpu_family = 'x86'" >> $cross
6405             ;;
6406         ppc64le)
6407             echo "cpu_family = 'ppc64'" >> $cross
6408             ;;
6409         *)
6410             echo "cpu_family = '$ARCH'" >> $cross
6411             ;;
6412     esac
6413     echo "cpu = '$cpu'" >> $cross
6414     if test "$bigendian" = "yes" ; then
6415         echo "endian = 'big'" >> $cross
6416     else
6417         echo "endian = 'little'" >> $cross
6418     fi
6419 else
6420     cross_arg="--native-file config-meson.cross"
6421 fi
6422 mv $cross config-meson.cross
6423
6424 rm -rf meson-private meson-info meson-logs
6425 unset staticpic
6426 if ! version_ge "$($meson --version)" 0.56.0; then
6427   staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
6428 fi
6429 NINJA=$ninja $meson setup \
6430         --prefix "$prefix" \
6431         --libdir "$libdir" \
6432         --libexecdir "$libexecdir" \
6433         --bindir "$bindir" \
6434         --includedir "$includedir" \
6435         --datadir "$datadir" \
6436         --mandir "$mandir" \
6437         --sysconfdir "$sysconfdir" \
6438         --localedir "$localedir" \
6439         --localstatedir "$local_statedir" \
6440         -Ddocdir="$docdir" \
6441         -Dqemu_firmwarepath="$firmwarepath" \
6442         -Dqemu_suffix="$qemu_suffix" \
6443         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6444         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6445         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6446         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6447         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6448         ${staticpic:+-Db_staticpic=$staticpic} \
6449         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6450         -Db_lto=$lto -Dcfi=$cfi -Dcfi_debug=$cfi_debug \
6451         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6452         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
6453         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6454         -Dcocoa=$cocoa -Dgtk=$gtk -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6455         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6456         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6457         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt -Dbrlapi=$brlapi \
6458         -Dcurl=$curl -Dglusterfs=$glusterfs -Dbzip2=$bzip2 -Dlibiscsi=$libiscsi \
6459         -Dlibnfs=$libnfs -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6460         -Drbd=$rbd -Dlzo=$lzo -Dsnappy=$snappy -Dlzfse=$lzfse \
6461         -Dzstd=$zstd -Dseccomp=$seccomp -Dvirtfs=$virtfs -Dcap_ng=$cap_ng \
6462         -Dattr=$attr -Ddefault_devices=$default_devices \
6463         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6464         -Dvhost_user_blk_server=$vhost_user_blk_server \
6465         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek \
6466         $(if test "$default_features" = no; then echo "-Dauto_features=disabled"; fi) \
6467         $cross_arg \
6468         "$PWD" "$source_path"
6469
6470 if test "$?" -ne 0 ; then
6471     error_exit "meson setup failed"
6472 fi
6473 fi
6474
6475 if test -n "${deprecated_features}"; then
6476     echo "Warning, deprecated features enabled."
6477     echo "Please see docs/system/deprecated.rst"
6478     echo "  features: ${deprecated_features}"
6479 fi
6480
6481 # Save the configure command line for later reuse.
6482 cat <<EOD >config.status
6483 #!/bin/sh
6484 # Generated by configure.
6485 # Run this file to recreate the current configuration.
6486 # Compiler output produced by configure, useful for debugging
6487 # configure, is in config.log if it exists.
6488 EOD
6489
6490 preserve_env() {
6491     envname=$1
6492
6493     eval envval=\$$envname
6494
6495     if test -n "$envval"
6496     then
6497         echo "$envname='$envval'" >> config.status
6498         echo "export $envname" >> config.status
6499     else
6500         echo "unset $envname" >> config.status
6501     fi
6502 }
6503
6504 # Preserve various env variables that influence what
6505 # features/build target configure will detect
6506 preserve_env AR
6507 preserve_env AS
6508 preserve_env CC
6509 preserve_env CPP
6510 preserve_env CXX
6511 preserve_env INSTALL
6512 preserve_env LD
6513 preserve_env LD_LIBRARY_PATH
6514 preserve_env LIBTOOL
6515 preserve_env MAKE
6516 preserve_env NM
6517 preserve_env OBJCOPY
6518 preserve_env PATH
6519 preserve_env PKG_CONFIG
6520 preserve_env PKG_CONFIG_LIBDIR
6521 preserve_env PKG_CONFIG_PATH
6522 preserve_env PYTHON
6523 preserve_env SDL2_CONFIG
6524 preserve_env SMBD
6525 preserve_env STRIP
6526 preserve_env WINDRES
6527
6528 printf "exec" >>config.status
6529 for i in "$0" "$@"; do
6530   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
6531 done
6532 echo ' "$@"' >>config.status
6533 chmod +x config.status
6534
6535 rm -r "$TMPDIR1"