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     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=gnu11/-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 "$1" >/dev/null 2>&1
 198 }
 199
 200 version_ge () {
 201     local_ver1=$(expr "$1" : '\([0-9.]*\)' | 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" "$PWD" | grep -q "[[:space:]:]";
 232 then
 233   error_exit "main directory cannot contain spaces nor colons"
 234 fi
 235
 236 # default parameters
 237 cpu=""
 238 iasl="iasl"
 239 interp_prefix="/usr/gnemul/qemu-%M"
 240 static="no"
 241 cross_compile="no"
 242 cross_prefix=""
 243 audio_drv_list=""
 244 block_drv_rw_whitelist=""
 245 block_drv_ro_whitelist=""
 246 host_cc="cc"
 247 audio_win_int=""
 248 libs_qga=""
 249 debug_info="yes"
 250 lto="false"
 251 stack_protector=""
 252 safe_stack=""
 253 use_containers="yes"
 254 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 255
 256 if test -e "$source_path/.git"
 257 then
 258     git_submodules_action="update"
 259 else
 260     git_submodules_action="ignore"
 261 fi
 262
 263 git_submodules="ui/keycodemapdb"
 264 git="git"
 265
 266 # Don't accept a target_list environment variable.
 267 unset target_list
 268 unset target_list_exclude
 269
 270 # Default value for a variable defining feature "foo".
 271 #  * foo="no"  feature will only be used if --enable-foo arg is given
 272 #  * foo=""    feature will be searched for, and if found, will be used
 273 #              unless --disable-foo is given
 274 #  * foo="yes" this value will only be set by --enable-foo flag.
 275 #              feature will searched for,
 276 #              if not found, configure exits with error
 277 #
 278 # Always add --enable-foo and --disable-foo command line args.
 279 # Distributions want to ensure that several features are compiled in, and it
 280 # is impossible without a --enable-foo that exits if a feature is not found.
 281
 282 default_feature=""
 283 # parse CC options second
 284 for opt do
 285   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 286   case "$opt" in
 287       --without-default-features)
 288           default_feature="no"
 289   ;;
 290   esac
 291 done
 292
 293 brlapi="auto"
 294 curl="auto"
 295 iconv="auto"
 296 curses="auto"
 297 docs="auto"
 298 fdt="auto"
 299 netmap="no"
 300 sdl="auto"
 301 sdl_image="auto"
 302 coreaudio="auto"
 303 virtiofsd="auto"
 304 virtfs="auto"
 305 libudev="auto"
 306 mpath="auto"
 307 vnc="enabled"
 308 sparse="auto"
 309 vde="$default_feature"
 310 vnc_sasl="auto"
 311 vnc_jpeg="auto"
 312 vnc_png="auto"
 313 xkbcommon="auto"
 314 xen="$default_feature"
 315 xen_ctrl_version="$default_feature"
 316 xen_pci_passthrough="auto"
 317 linux_aio="$default_feature"
 318 linux_io_uring="auto"
 319 cap_ng="auto"
 320 attr="auto"
 321 xfs="$default_feature"
 322 tcg="enabled"
 323 membarrier="$default_feature"
 324 vhost_net="$default_feature"
 325 vhost_crypto="$default_feature"
 326 vhost_scsi="$default_feature"
 327 vhost_vsock="$default_feature"
 328 vhost_user="no"
 329 vhost_user_blk_server="auto"
 330 vhost_user_fs="$default_feature"
 331 bpf="auto"
 332 kvm="auto"
 333 hax="auto"
 334 hvf="auto"
 335 whpx="auto"
 336 nvmm="auto"
 337 rdma="$default_feature"
 338 pvrdma="$default_feature"
 339 gprof="no"
 340 debug_tcg="no"
 341 debug="no"
 342 sanitizers="no"
 343 tsan="no"
 344 fortify_source="$default_feature"
 345 strip_opt="yes"
 346 tcg_interpreter="false"
 347 bigendian="no"
 348 mingw32="no"
 349 gcov="no"
 350 EXESUF=""
 351 HOST_DSOSUF=".so"
 352 modules="no"
 353 module_upgrades="no"
 354 prefix="/usr/local"
 355 qemu_suffix="qemu"
 356 slirp="auto"
 357 oss_lib=""
 358 bsd="no"
 359 linux="no"
 360 solaris="no"
 361 profiler="no"
 362 cocoa="auto"
 363 softmmu="yes"
 364 linux_user="no"
 365 bsd_user="no"
 366 blobs="true"
 367 pkgversion=""
 368 pie=""
 369 qom_cast_debug="yes"
 370 trace_backends="log"
 371 trace_file="trace"
 372 spice="$default_feature"
 373 spice_protocol="auto"
 374 rbd="auto"
 375 smartcard="auto"
 376 u2f="auto"
 377 libusb="auto"
 378 usb_redir="auto"
 379 opengl="$default_feature"
 380 cpuid_h="no"
 381 avx2_opt="$default_feature"
 382 capstone="auto"
 383 lzo="auto"
 384 snappy="auto"
 385 bzip2="auto"
 386 lzfse="auto"
 387 zstd="auto"
 388 guest_agent="$default_feature"
 389 guest_agent_with_vss="no"
 390 guest_agent_ntddscsi="no"
 391 guest_agent_msi="auto"
 392 vss_win32_sdk="$default_feature"
 393 win_sdk="no"
 394 want_tools="$default_feature"
 395 libiscsi="auto"
 396 libnfs="auto"
 397 coroutine=""
 398 coroutine_pool="$default_feature"
 399 debug_stack_usage="no"
 400 crypto_afalg="no"
 401 cfi="false"
 402 cfi_debug="false"
 403 seccomp="auto"
 404 glusterfs="auto"
 405 gtk="auto"
 406 tls_priority="NORMAL"
 407 gnutls="auto"
 408 nettle="auto"
 409 gcrypt="auto"
 410 auth_pam="auto"
 411 vte="auto"
 412 virglrenderer="auto"
 413 tpm="$default_feature"
 414 libssh="$default_feature"
 415 live_block_migration=${default_feature:-yes}
 416 numa="$default_feature"
 417 tcmalloc="no"
 418 jemalloc="no"
 419 replication=${default_feature:-yes}
 420 bochs=${default_feature:-yes}
 421 cloop=${default_feature:-yes}
 422 dmg=${default_feature:-yes}
 423 qcow1=${default_feature:-yes}
 424 vdi=${default_feature:-yes}
 425 vvfat=${default_feature:-yes}
 426 qed=${default_feature:-yes}
 427 parallels=${default_feature:-yes}
 428 libxml2="auto"
 429 debug_mutex="no"
 430 libpmem="auto"
 431 default_devices="true"
 432 plugins="no"
 433 fuzzing="no"
 434 rng_none="no"
 435 secret_keyring="$default_feature"
 436 libdaxctl="auto"
 437 meson=""
 438 ninja=""
 439 skip_meson=no
 440 gettext="auto"
 441 fuse="auto"
 442 fuse_lseek="auto"
 443 multiprocess="auto"
 444 slirp_smbd="$default_feature"
 445
 446 malloc_trim="auto"
 447 gio="$default_feature"
 448
 449 # parse CC options second
 450 for opt do
 451   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 452   case "$opt" in
 453   --cross-prefix=*) cross_prefix="$optarg"
 454                     cross_compile="yes"
 455   ;;
 456   --cc=*) CC="$optarg"
 457   ;;
 458   --cxx=*) CXX="$optarg"
 459   ;;
 460   --cpu=*) cpu="$optarg"
 461   ;;
 462   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 463                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 464   ;;
 465   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 466   ;;
 467   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 468                      EXTRA_LDFLAGS="$optarg"
 469   ;;
 470   --enable-debug-info) debug_info="yes"
 471   ;;
 472   --disable-debug-info) debug_info="no"
 473   ;;
 474   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 475   ;;
 476   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 477                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 478                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 479   ;;
 480   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 481                 cc_archs="$cc_archs $cc_arch"
 482                 eval "cross_cc_${cc_arch}=\$optarg"
 483                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 484   ;;
 485   esac
 486 done
 487 # OS specific
 488 # Using uname is really, really broken.  Once we have the right set of checks
 489 # we can eliminate its usage altogether.
 490
 491 # Preferred compiler:
 492 #  ${CC} (if set)
 493 #  ${cross_prefix}gcc (if cross-prefix specified)
 494 #  system compiler
 495 if test -z "${CC}${cross_prefix}"; then
 496   cc="$host_cc"
 497 else
 498   cc="${CC-${cross_prefix}gcc}"
 499 fi
 500
 501 if test -z "${CXX}${cross_prefix}"; then
 502   cxx="c++"
 503 else
 504   cxx="${CXX-${cross_prefix}g++}"
 505 fi
 506
 507 ar="${AR-${cross_prefix}ar}"
 508 as="${AS-${cross_prefix}as}"
 509 ccas="${CCAS-$cc}"
 510 cpp="${CPP-$cc -E}"
 511 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 512 ld="${LD-${cross_prefix}ld}"
 513 ranlib="${RANLIB-${cross_prefix}ranlib}"
 514 nm="${NM-${cross_prefix}nm}"
 515 strip="${STRIP-${cross_prefix}strip}"
 516 windres="${WINDRES-${cross_prefix}windres}"
 517 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 518 query_pkg_config() {
 519     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 520 }
 521 pkg_config=query_pkg_config
 522 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 523
 524 # default flags for all hosts
 525 # We use -fwrapv to tell the compiler that we require a C dialect where
 526 # left shift of signed integers is well defined and has the expected
 527 # 2s-complement style results. (Both clang and gcc agree that it
 528 # provides these semantics.)
 529 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 530 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 531 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 532 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 533
 534 # Flags that are needed during configure but later taken care of by Meson
 535 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 536 CONFIGURE_LDFLAGS=
 537
 538
 539 check_define() {
 540 cat > $TMPC <<EOF
 541 #if !defined($1)
 542 #error $1 not defined
 543 #endif
 544 int main(void) { return 0; }
 545 EOF
 546   compile_object
 547 }
 548
 549 check_include() {
 550 cat > $TMPC <<EOF
 551 #include <$1>
 552 int main(void) { return 0; }
 553 EOF
 554   compile_object
 555 }
 556
 557 write_c_skeleton() {
 558     cat > $TMPC <<EOF
 559 int main(void) { return 0; }
 560 EOF
 561 }
 562
 563 write_c_fuzzer_skeleton() {
 564     cat > $TMPC <<EOF
 565 #include <stdint.h>
 566 #include <sys/types.h>
 567 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 568 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 569 EOF
 570 }
 571
 572 if check_define __linux__ ; then
 573   targetos="Linux"
 574 elif check_define _WIN32 ; then
 575   targetos='MINGW32'
 576 elif check_define __OpenBSD__ ; then
 577   targetos='OpenBSD'
 578 elif check_define __sun__ ; then
 579   targetos='SunOS'
 580 elif check_define __HAIKU__ ; then
 581   targetos='Haiku'
 582 elif check_define __FreeBSD__ ; then
 583   targetos='FreeBSD'
 584 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 585   targetos='GNU/kFreeBSD'
 586 elif check_define __DragonFly__ ; then
 587   targetos='DragonFly'
 588 elif check_define __NetBSD__; then
 589   targetos='NetBSD'
 590 elif check_define __APPLE__; then
 591   targetos='Darwin'
 592 else
 593   # This is a fatal error, but don't report it yet, because we
 594   # might be going to just print the --help text, or it might
 595   # be the result of a missing compiler.
 596   targetos='bogus'
 597 fi
 598
 599 # Some host OSes need non-standard checks for which CPU to use.
 600 # Note that these checks are broken for cross-compilation: if you're
 601 # cross-compiling to one of these OSes then you'll need to specify
 602 # the correct CPU with the --cpu option.
 603 case $targetos in
 604 Darwin)
 605   HOST_DSOSUF=".dylib"
 606   ;;
 607 SunOS)
 608   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 609   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 610     cpu="x86_64"
 611   fi
 612 esac
 613
 614 if test ! -z "$cpu" ; then
 615   # command line argument
 616   :
 617 elif check_define __i386__ ; then
 618   cpu="i386"
 619 elif check_define __x86_64__ ; then
 620   if check_define __ILP32__ ; then
 621     cpu="x32"
 622   else
 623     cpu="x86_64"
 624   fi
 625 elif check_define __sparc__ ; then
 626   if check_define __arch64__ ; then
 627     cpu="sparc64"
 628   else
 629     cpu="sparc"
 630   fi
 631 elif check_define _ARCH_PPC ; then
 632   if check_define _ARCH_PPC64 ; then
 633     if check_define _LITTLE_ENDIAN ; then
 634       cpu="ppc64le"
 635     else
 636       cpu="ppc64"
 637     fi
 638   else
 639     cpu="ppc"
 640   fi
 641 elif check_define __mips__ ; then
 642   cpu="mips"
 643 elif check_define __s390__ ; then
 644   if check_define __s390x__ ; then
 645     cpu="s390x"
 646   else
 647     cpu="s390"
 648   fi
 649 elif check_define __riscv ; then
 650   if check_define _LP64 ; then
 651     cpu="riscv64"
 652   else
 653     cpu="riscv32"
 654   fi
 655 elif check_define __arm__ ; then
 656   cpu="arm"
 657 elif check_define __aarch64__ ; then
 658   cpu="aarch64"
 659 else
 660   cpu=$(uname -m)
 661 fi
 662
 663 ARCH=
 664 # Normalise host CPU name and set ARCH.
 665 # Note that this case should only have supported host CPUs, not guests.
 666 case "$cpu" in
 667   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 668   ;;
 669   ppc64le)
 670     ARCH="ppc64"
 671   ;;
 672   i386|i486|i586|i686|i86pc|BePC)
 673     cpu="i386"
 674   ;;
 675   x86_64|amd64)
 676     cpu="x86_64"
 677   ;;
 678   armv*b|armv*l|arm)
 679     cpu="arm"
 680   ;;
 681   aarch64)
 682     cpu="aarch64"
 683   ;;
 684   mips*)
 685     cpu="mips"
 686   ;;
 687   sparc|sun4[cdmuv])
 688     cpu="sparc"
 689   ;;
 690   *)
 691     # This will result in either an error or falling back to TCI later
 692     ARCH=unknown
 693   ;;
 694 esac
 695 if test -z "$ARCH"; then
 696   ARCH="$cpu"
 697 fi
 698
 699 # OS specific
 700
 701 case $targetos in
 702 MINGW32*)
 703   mingw32="yes"
 704   audio_possible_drivers="dsound sdl"
 705   if check_include dsound.h; then
 706     audio_drv_list="dsound"
 707   else
 708     audio_drv_list=""
 709   fi
 710   supported_os="yes"
 711   pie="no"
 712 ;;
 713 GNU/kFreeBSD)
 714   bsd="yes"
 715   audio_drv_list="oss try-sdl"
 716   audio_possible_drivers="oss sdl pa"
 717 ;;
 718 FreeBSD)
 719   bsd="yes"
 720   make="${MAKE-gmake}"
 721   audio_drv_list="oss try-sdl"
 722   audio_possible_drivers="oss sdl pa"
 723   # needed for kinfo_getvmmap(3) in libutil.h
 724   netmap=""  # enable netmap autodetect
 725 ;;
 726 DragonFly)
 727   bsd="yes"
 728   make="${MAKE-gmake}"
 729   audio_drv_list="oss try-sdl"
 730   audio_possible_drivers="oss sdl pa"
 731 ;;
 732 NetBSD)
 733   bsd="yes"
 734   make="${MAKE-gmake}"
 735   audio_drv_list="oss try-sdl"
 736   audio_possible_drivers="oss sdl"
 737   oss_lib="-lossaudio"
 738 ;;
 739 OpenBSD)
 740   bsd="yes"
 741   make="${MAKE-gmake}"
 742   audio_drv_list="try-sdl"
 743   audio_possible_drivers="sdl"
 744 ;;
 745 Darwin)
 746   bsd="yes"
 747   darwin="yes"
 748   audio_drv_list="try-coreaudio try-sdl"
 749   audio_possible_drivers="coreaudio sdl"
 750   # Disable attempts to use ObjectiveC features in os/object.h since they
 751   # won't work when we're compiling with gcc as a C compiler.
 752   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 753 ;;
 754 SunOS)
 755   solaris="yes"
 756   make="${MAKE-gmake}"
 757   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 758   if test -f /usr/include/sys/soundcard.h ; then
 759     audio_drv_list="oss try-sdl"
 760   fi
 761   audio_possible_drivers="oss sdl"
 762 # needed for CMSG_ macros in sys/socket.h
 763   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 764 # needed for TIOCWIN* defines in termios.h
 765   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 766 ;;
 767 Haiku)
 768   haiku="yes"
 769   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 770 ;;
 771 Linux)
 772   audio_drv_list="try-pa oss"
 773   audio_possible_drivers="oss alsa sdl pa"
 774   linux="yes"
 775   linux_user="yes"
 776   vhost_user=${default_feature:-yes}
 777 ;;
 778 esac
 779
 780 if [ "$bsd" = "yes" ] ; then
 781   if [ "$darwin" != "yes" ] ; then
 782     bsd_user="yes"
 783   fi
 784 fi
 785
 786 : ${make=${MAKE-make}}
 787
 788 # We prefer python 3.x. A bare 'python' is traditionally
 789 # python 2.x, but some distros have it as python 3.x, so
 790 # we check that too
 791 python=
 792 explicit_python=no
 793 for binary in "${PYTHON-python3}" python
 794 do
 795     if has "$binary"
 796     then
 797         python=$(command -v "$binary")
 798         break
 799     fi
 800 done
 801
 802
 803 # Check for ancillary tools used in testing
 804 genisoimage=
 805 for binary in genisoimage mkisofs
 806 do
 807     if has $binary
 808     then
 809         genisoimage=$(command -v "$binary")
 810         break
 811     fi
 812 done
 813
 814 # Default objcc to clang if available, otherwise use CC
 815 if has clang; then
 816   objcc=clang
 817 else
 818   objcc="$cc"
 819 fi
 820
 821 if test "$mingw32" = "yes" ; then
 822   EXESUF=".exe"
 823   HOST_DSOSUF=".dll"
 824   # MinGW needs -mthreads for TLS and macro _MT.
 825   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 826   write_c_skeleton;
 827   prefix="/qemu"
 828   qemu_suffix=""
 829   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 830 fi
 831
 832 werror=""
 833
 834 for opt do
 835   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 836   case "$opt" in
 837   --help|-h) show_help=yes
 838   ;;
 839   --version|-V) exec cat $source_path/VERSION
 840   ;;
 841   --prefix=*) prefix="$optarg"
 842   ;;
 843   --interp-prefix=*) interp_prefix="$optarg"
 844   ;;
 845   --cross-prefix=*)
 846   ;;
 847   --cc=*)
 848   ;;
 849   --host-cc=*) host_cc="$optarg"
 850   ;;
 851   --cxx=*)
 852   ;;
 853   --iasl=*) iasl="$optarg"
 854   ;;
 855   --objcc=*) objcc="$optarg"
 856   ;;
 857   --make=*) make="$optarg"
 858   ;;
 859   --install=*)
 860   ;;
 861   --python=*) python="$optarg" ; explicit_python=yes
 862   ;;
 863   --sphinx-build=*) sphinx_build="$optarg"
 864   ;;
 865   --skip-meson) skip_meson=yes
 866   ;;
 867   --meson=*) meson="$optarg"
 868   ;;
 869   --ninja=*) ninja="$optarg"
 870   ;;
 871   --smbd=*) smbd="$optarg"
 872   ;;
 873   --extra-cflags=*)
 874   ;;
 875   --extra-cxxflags=*)
 876   ;;
 877   --extra-ldflags=*)
 878   ;;
 879   --enable-debug-info)
 880   ;;
 881   --disable-debug-info)
 882   ;;
 883   --cross-cc-*)
 884   ;;
 885   --enable-modules)
 886       modules="yes"
 887   ;;
 888   --disable-modules)
 889       modules="no"
 890   ;;
 891   --disable-module-upgrades) module_upgrades="no"
 892   ;;
 893   --enable-module-upgrades) module_upgrades="yes"
 894   ;;
 895   --cpu=*)
 896   ;;
 897   --target-list=*) target_list="$optarg"
 898                    if test "$target_list_exclude"; then
 899                        error_exit "Can't mix --target-list with --target-list-exclude"
 900                    fi
 901   ;;
 902   --target-list-exclude=*) target_list_exclude="$optarg"
 903                    if test "$target_list"; then
 904                        error_exit "Can't mix --target-list-exclude with --target-list"
 905                    fi
 906   ;;
 907   --enable-trace-backends=*) trace_backends="$optarg"
 908   ;;
 909   # XXX: backwards compatibility
 910   --enable-trace-backend=*) trace_backends="$optarg"
 911   ;;
 912   --with-trace-file=*) trace_file="$optarg"
 913   ;;
 914   --with-default-devices) default_devices="true"
 915   ;;
 916   --without-default-devices) default_devices="false"
 917   ;;
 918   --without-default-features) # processed above
 919   ;;
 920   --enable-gprof) gprof="yes"
 921   ;;
 922   --enable-gcov) gcov="yes"
 923   ;;
 924   --static)
 925     static="yes"
 926     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 927   ;;
 928   --mandir=*) mandir="$optarg"
 929   ;;
 930   --bindir=*) bindir="$optarg"
 931   ;;
 932   --libdir=*) libdir="$optarg"
 933   ;;
 934   --libexecdir=*) libexecdir="$optarg"
 935   ;;
 936   --includedir=*) includedir="$optarg"
 937   ;;
 938   --datadir=*) datadir="$optarg"
 939   ;;
 940   --with-suffix=*) qemu_suffix="$optarg"
 941   ;;
 942   --docdir=*) docdir="$optarg"
 943   ;;
 944   --localedir=*) localedir="$optarg"
 945   ;;
 946   --sysconfdir=*) sysconfdir="$optarg"
 947   ;;
 948   --localstatedir=*) local_statedir="$optarg"
 949   ;;
 950   --firmwarepath=*) firmwarepath="$optarg"
 951   ;;
 952   --host=*|--build=*|\
 953   --disable-dependency-tracking|\
 954   --sbindir=*|--sharedstatedir=*|\
 955   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 956   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 957     # These switches are silently ignored, for compatibility with
 958     # autoconf-generated configure scripts. This allows QEMU's
 959     # configure to be used by RPM and similar macros that set
 960     # lots of directory switches by default.
 961   ;;
 962   --disable-sdl) sdl="disabled"
 963   ;;
 964   --enable-sdl) sdl="enabled"
 965   ;;
 966   --disable-sdl-image) sdl_image="disabled"
 967   ;;
 968   --enable-sdl-image) sdl_image="enabled"
 969   ;;
 970   --disable-qom-cast-debug) qom_cast_debug="no"
 971   ;;
 972   --enable-qom-cast-debug) qom_cast_debug="yes"
 973   ;;
 974   --disable-virtfs) virtfs="disabled"
 975   ;;
 976   --enable-virtfs) virtfs="enabled"
 977   ;;
 978   --disable-libudev) libudev="disabled"
 979   ;;
 980   --enable-libudev) libudev="enabled"
 981   ;;
 982   --disable-virtiofsd) virtiofsd="disabled"
 983   ;;
 984   --enable-virtiofsd) virtiofsd="enabled"
 985   ;;
 986   --disable-mpath) mpath="disabled"
 987   ;;
 988   --enable-mpath) mpath="enabled"
 989   ;;
 990   --disable-vnc) vnc="disabled"
 991   ;;
 992   --enable-vnc) vnc="enabled"
 993   ;;
 994   --disable-gettext) gettext="disabled"
 995   ;;
 996   --enable-gettext) gettext="enabled"
 997   ;;
 998   --oss-lib=*) oss_lib="$optarg"
 999   ;;
1000   --audio-drv-list=*) audio_drv_list="$optarg"
1001   ;;
1002   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1003   ;;
1004   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1005   ;;
1006   --enable-debug-tcg) debug_tcg="yes"
1007   ;;
1008   --disable-debug-tcg) debug_tcg="no"
1009   ;;
1010   --enable-debug)
1011       # Enable debugging options that aren't excessively noisy
1012       debug_tcg="yes"
1013       debug_mutex="yes"
1014       debug="yes"
1015       strip_opt="no"
1016       fortify_source="no"
1017   ;;
1018   --enable-sanitizers) sanitizers="yes"
1019   ;;
1020   --disable-sanitizers) sanitizers="no"
1021   ;;
1022   --enable-tsan) tsan="yes"
1023   ;;
1024   --disable-tsan) tsan="no"
1025   ;;
1026   --enable-sparse) sparse="enabled"
1027   ;;
1028   --disable-sparse) sparse="disabled"
1029   ;;
1030   --disable-strip) strip_opt="no"
1031   ;;
1032   --disable-vnc-sasl) vnc_sasl="disabled"
1033   ;;
1034   --enable-vnc-sasl) vnc_sasl="enabled"
1035   ;;
1036   --disable-vnc-jpeg) vnc_jpeg="disabled"
1037   ;;
1038   --enable-vnc-jpeg) vnc_jpeg="enabled"
1039   ;;
1040   --disable-vnc-png) vnc_png="disabled"
1041   ;;
1042   --enable-vnc-png) vnc_png="enabled"
1043   ;;
1044   --disable-slirp) slirp="disabled"
1045   ;;
1046   --enable-slirp) slirp="enabled"
1047   ;;
1048   --enable-slirp=git) slirp="internal"
1049   ;;
1050   --enable-slirp=system) slirp="system"
1051   ;;
1052   --disable-vde) vde="no"
1053   ;;
1054   --enable-vde) vde="yes"
1055   ;;
1056   --disable-netmap) netmap="no"
1057   ;;
1058   --enable-netmap) netmap="yes"
1059   ;;
1060   --disable-xen) xen="disabled"
1061   ;;
1062   --enable-xen) xen="enabled"
1063   ;;
1064   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1065   ;;
1066   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1067   ;;
1068   --disable-brlapi) brlapi="disabled"
1069   ;;
1070   --enable-brlapi) brlapi="enabled"
1071   ;;
1072   --disable-kvm) kvm="disabled"
1073   ;;
1074   --enable-kvm) kvm="enabled"
1075   ;;
1076   --disable-hax) hax="disabled"
1077   ;;
1078   --enable-hax) hax="enabled"
1079   ;;
1080   --disable-hvf) hvf="disabled"
1081   ;;
1082   --enable-hvf) hvf="enabled"
1083   ;;
1084   --disable-nvmm) nvmm="disabled"
1085   ;;
1086   --enable-nvmm) nvmm="enabled"
1087   ;;
1088   --disable-whpx) whpx="disabled"
1089   ;;
1090   --enable-whpx) whpx="enabled"
1091   ;;
1092   --disable-tcg-interpreter) tcg_interpreter="false"
1093   ;;
1094   --enable-tcg-interpreter) tcg_interpreter="true"
1095   ;;
1096   --disable-cap-ng)  cap_ng="disabled"
1097   ;;
1098   --enable-cap-ng) cap_ng="enabled"
1099   ;;
1100   --disable-tcg) tcg="disabled"
1101   ;;
1102   --enable-tcg) tcg="enabled"
1103   ;;
1104   --disable-malloc-trim) malloc_trim="disabled"
1105   ;;
1106   --enable-malloc-trim) malloc_trim="enabled"
1107   ;;
1108   --disable-spice) spice="no"
1109   ;;
1110   --enable-spice)
1111       spice_protocol="yes"
1112       spice="yes"
1113   ;;
1114   --disable-spice-protocol)
1115       spice_protocol="no"
1116       spice="no"
1117   ;;
1118   --enable-spice-protocol) spice_protocol="yes"
1119   ;;
1120   --disable-libiscsi) libiscsi="disabled"
1121   ;;
1122   --enable-libiscsi) libiscsi="enabled"
1123   ;;
1124   --disable-libnfs) libnfs="disabled"
1125   ;;
1126   --enable-libnfs) libnfs="enabled"
1127   ;;
1128   --enable-profiler) profiler="yes"
1129   ;;
1130   --disable-cocoa) cocoa="disabled"
1131   ;;
1132   --enable-cocoa) cocoa="enabled"
1133   ;;
1134   --disable-system) softmmu="no"
1135   ;;
1136   --enable-system) softmmu="yes"
1137   ;;
1138   --disable-user)
1139       linux_user="no" ;
1140       bsd_user="no" ;
1141   ;;
1142   --enable-user) ;;
1143   --disable-linux-user) linux_user="no"
1144   ;;
1145   --enable-linux-user) linux_user="yes"
1146   ;;
1147   --disable-bsd-user) bsd_user="no"
1148   ;;
1149   --enable-bsd-user) bsd_user="yes"
1150   ;;
1151   --enable-pie) pie="yes"
1152   ;;
1153   --disable-pie) pie="no"
1154   ;;
1155   --enable-werror) werror="yes"
1156   ;;
1157   --disable-werror) werror="no"
1158   ;;
1159   --enable-lto) lto="true"
1160   ;;
1161   --disable-lto) lto="false"
1162   ;;
1163   --enable-stack-protector) stack_protector="yes"
1164   ;;
1165   --disable-stack-protector) stack_protector="no"
1166   ;;
1167   --enable-safe-stack) safe_stack="yes"
1168   ;;
1169   --disable-safe-stack) safe_stack="no"
1170   ;;
1171   --enable-cfi)
1172       cfi="true";
1173       lto="true";
1174   ;;
1175   --disable-cfi) cfi="false"
1176   ;;
1177   --enable-cfi-debug) cfi_debug="true"
1178   ;;
1179   --disable-cfi-debug) cfi_debug="false"
1180   ;;
1181   --disable-curses) curses="disabled"
1182   ;;
1183   --enable-curses) curses="enabled"
1184   ;;
1185   --disable-iconv) iconv="disabled"
1186   ;;
1187   --enable-iconv) iconv="enabled"
1188   ;;
1189   --disable-curl) curl="disabled"
1190   ;;
1191   --enable-curl) curl="enabled"
1192   ;;
1193   --disable-fdt) fdt="disabled"
1194   ;;
1195   --enable-fdt) fdt="enabled"
1196   ;;
1197   --enable-fdt=git) fdt="internal"
1198   ;;
1199   --enable-fdt=system) fdt="system"
1200   ;;
1201   --disable-linux-aio) linux_aio="no"
1202   ;;
1203   --enable-linux-aio) linux_aio="yes"
1204   ;;
1205   --disable-linux-io-uring) linux_io_uring="disabled"
1206   ;;
1207   --enable-linux-io-uring) linux_io_uring="enabled"
1208   ;;
1209   --disable-attr) attr="disabled"
1210   ;;
1211   --enable-attr) attr="enabled"
1212   ;;
1213   --disable-membarrier) membarrier="no"
1214   ;;
1215   --enable-membarrier) membarrier="yes"
1216   ;;
1217   --disable-bpf) bpf="disabled"
1218   ;;
1219   --enable-bpf) bpf="enabled"
1220   ;;
1221   --disable-blobs) blobs="false"
1222   ;;
1223   --with-pkgversion=*) pkgversion="$optarg"
1224   ;;
1225   --with-coroutine=*) coroutine="$optarg"
1226   ;;
1227   --disable-coroutine-pool) coroutine_pool="no"
1228   ;;
1229   --enable-coroutine-pool) coroutine_pool="yes"
1230   ;;
1231   --enable-debug-stack-usage) debug_stack_usage="yes"
1232   ;;
1233   --enable-crypto-afalg) crypto_afalg="yes"
1234   ;;
1235   --disable-crypto-afalg) crypto_afalg="no"
1236   ;;
1237   --disable-docs) docs="disabled"
1238   ;;
1239   --enable-docs) docs="enabled"
1240   ;;
1241   --disable-vhost-net) vhost_net="no"
1242   ;;
1243   --enable-vhost-net) vhost_net="yes"
1244   ;;
1245   --disable-vhost-crypto) vhost_crypto="no"
1246   ;;
1247   --enable-vhost-crypto) vhost_crypto="yes"
1248   ;;
1249   --disable-vhost-scsi) vhost_scsi="no"
1250   ;;
1251   --enable-vhost-scsi) vhost_scsi="yes"
1252   ;;
1253   --disable-vhost-vsock) vhost_vsock="no"
1254   ;;
1255   --enable-vhost-vsock) vhost_vsock="yes"
1256   ;;
1257   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1258   ;;
1259   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1260   ;;
1261   --disable-vhost-user-fs) vhost_user_fs="no"
1262   ;;
1263   --enable-vhost-user-fs) vhost_user_fs="yes"
1264   ;;
1265   --disable-opengl) opengl="no"
1266   ;;
1267   --enable-opengl) opengl="yes"
1268   ;;
1269   --disable-rbd) rbd="disabled"
1270   ;;
1271   --enable-rbd) rbd="enabled"
1272   ;;
1273   --disable-xfsctl) xfs="no"
1274   ;;
1275   --enable-xfsctl) xfs="yes"
1276   ;;
1277   --disable-smartcard) smartcard="disabled"
1278   ;;
1279   --enable-smartcard) smartcard="enabled"
1280   ;;
1281   --disable-u2f) u2f="disabled"
1282   ;;
1283   --enable-u2f) u2f="enabled"
1284   ;;
1285   --disable-libusb) libusb="disabled"
1286   ;;
1287   --enable-libusb) libusb="enabled"
1288   ;;
1289   --disable-usb-redir) usb_redir="disabled"
1290   ;;
1291   --enable-usb-redir) usb_redir="enabled"
1292   ;;
1293   --disable-zlib-test)
1294   ;;
1295   --disable-lzo) lzo="disabled"
1296   ;;
1297   --enable-lzo) lzo="enabled"
1298   ;;
1299   --disable-snappy) snappy="disabled"
1300   ;;
1301   --enable-snappy) snappy="enabled"
1302   ;;
1303   --disable-bzip2) bzip2="disabled"
1304   ;;
1305   --enable-bzip2) bzip2="enabled"
1306   ;;
1307   --enable-lzfse) lzfse="enabled"
1308   ;;
1309   --disable-lzfse) lzfse="disabled"
1310   ;;
1311   --disable-zstd) zstd="disabled"
1312   ;;
1313   --enable-zstd) zstd="enabled"
1314   ;;
1315   --enable-guest-agent) guest_agent="yes"
1316   ;;
1317   --disable-guest-agent) guest_agent="no"
1318   ;;
1319   --enable-guest-agent-msi) guest_agent_msi="enabled"
1320   ;;
1321   --disable-guest-agent-msi) guest_agent_msi="disabled"
1322   ;;
1323   --with-vss-sdk) vss_win32_sdk=""
1324   ;;
1325   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1326   ;;
1327   --without-vss-sdk) vss_win32_sdk="no"
1328   ;;
1329   --with-win-sdk) win_sdk=""
1330   ;;
1331   --with-win-sdk=*) win_sdk="$optarg"
1332   ;;
1333   --without-win-sdk) win_sdk="no"
1334   ;;
1335   --enable-tools) want_tools="yes"
1336   ;;
1337   --disable-tools) want_tools="no"
1338   ;;
1339   --enable-seccomp) seccomp="enabled"
1340   ;;
1341   --disable-seccomp) seccomp="disabled"
1342   ;;
1343   --disable-glusterfs) glusterfs="disabled"
1344   ;;
1345   --disable-avx2) avx2_opt="no"
1346   ;;
1347   --enable-avx2) avx2_opt="yes"
1348   ;;
1349   --disable-avx512f) avx512f_opt="no"
1350   ;;
1351   --enable-avx512f) avx512f_opt="yes"
1352   ;;
1353
1354   --enable-glusterfs) glusterfs="enabled"
1355   ;;
1356   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1357       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1358   ;;
1359   --enable-vhdx|--disable-vhdx)
1360       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1361   ;;
1362   --enable-uuid|--disable-uuid)
1363       echo "$0: $opt is obsolete, UUID support is always built" >&2
1364   ;;
1365   --disable-gtk) gtk="disabled"
1366   ;;
1367   --enable-gtk) gtk="enabled"
1368   ;;
1369   --tls-priority=*) tls_priority="$optarg"
1370   ;;
1371   --disable-gnutls) gnutls="disabled"
1372   ;;
1373   --enable-gnutls) gnutls="enabled"
1374   ;;
1375   --disable-nettle) nettle="disabled"
1376   ;;
1377   --enable-nettle) nettle="enabled"
1378   ;;
1379   --disable-gcrypt) gcrypt="disabled"
1380   ;;
1381   --enable-gcrypt) gcrypt="enabled"
1382   ;;
1383   --disable-auth-pam) auth_pam="disabled"
1384   ;;
1385   --enable-auth-pam) auth_pam="enabled"
1386   ;;
1387   --enable-rdma) rdma="yes"
1388   ;;
1389   --disable-rdma) rdma="no"
1390   ;;
1391   --enable-pvrdma) pvrdma="yes"
1392   ;;
1393   --disable-pvrdma) pvrdma="no"
1394   ;;
1395   --disable-vte) vte="disabled"
1396   ;;
1397   --enable-vte) vte="enabled"
1398   ;;
1399   --disable-virglrenderer) virglrenderer="disabled"
1400   ;;
1401   --enable-virglrenderer) virglrenderer="enabled"
1402   ;;
1403   --disable-tpm) tpm="no"
1404   ;;
1405   --enable-tpm) tpm="yes"
1406   ;;
1407   --disable-libssh) libssh="no"
1408   ;;
1409   --enable-libssh) libssh="yes"
1410   ;;
1411   --disable-live-block-migration) live_block_migration="no"
1412   ;;
1413   --enable-live-block-migration) live_block_migration="yes"
1414   ;;
1415   --disable-numa) numa="no"
1416   ;;
1417   --enable-numa) numa="yes"
1418   ;;
1419   --disable-libxml2) libxml2="disabled"
1420   ;;
1421   --enable-libxml2) libxml2="enabled"
1422   ;;
1423   --disable-tcmalloc) tcmalloc="no"
1424   ;;
1425   --enable-tcmalloc) tcmalloc="yes"
1426   ;;
1427   --disable-jemalloc) jemalloc="no"
1428   ;;
1429   --enable-jemalloc) jemalloc="yes"
1430   ;;
1431   --disable-replication) replication="no"
1432   ;;
1433   --enable-replication) replication="yes"
1434   ;;
1435   --disable-bochs) bochs="no"
1436   ;;
1437   --enable-bochs) bochs="yes"
1438   ;;
1439   --disable-cloop) cloop="no"
1440   ;;
1441   --enable-cloop) cloop="yes"
1442   ;;
1443   --disable-dmg) dmg="no"
1444   ;;
1445   --enable-dmg) dmg="yes"
1446   ;;
1447   --disable-qcow1) qcow1="no"
1448   ;;
1449   --enable-qcow1) qcow1="yes"
1450   ;;
1451   --disable-vdi) vdi="no"
1452   ;;
1453   --enable-vdi) vdi="yes"
1454   ;;
1455   --disable-vvfat) vvfat="no"
1456   ;;
1457   --enable-vvfat) vvfat="yes"
1458   ;;
1459   --disable-qed) qed="no"
1460   ;;
1461   --enable-qed) qed="yes"
1462   ;;
1463   --disable-parallels) parallels="no"
1464   ;;
1465   --enable-parallels) parallels="yes"
1466   ;;
1467   --disable-vhost-user) vhost_user="no"
1468   ;;
1469   --enable-vhost-user) vhost_user="yes"
1470   ;;
1471   --disable-vhost-vdpa) vhost_vdpa="no"
1472   ;;
1473   --enable-vhost-vdpa) vhost_vdpa="yes"
1474   ;;
1475   --disable-vhost-kernel) vhost_kernel="no"
1476   ;;
1477   --enable-vhost-kernel) vhost_kernel="yes"
1478   ;;
1479   --disable-capstone) capstone="disabled"
1480   ;;
1481   --enable-capstone) capstone="enabled"
1482   ;;
1483   --enable-capstone=git) capstone="internal"
1484   ;;
1485   --enable-capstone=system) capstone="system"
1486   ;;
1487   --with-git=*) git="$optarg"
1488   ;;
1489   --enable-git-update)
1490       git_submodules_action="update"
1491       echo "--enable-git-update deprecated, use --with-git-submodules=update"
1492   ;;
1493   --disable-git-update)
1494       git_submodules_action="validate"
1495       echo "--disable-git-update deprecated, use --with-git-submodules=validate"
1496   ;;
1497   --with-git-submodules=*)
1498       git_submodules_action="$optarg"
1499   ;;
1500   --enable-debug-mutex) debug_mutex=yes
1501   ;;
1502   --disable-debug-mutex) debug_mutex=no
1503   ;;
1504   --enable-libpmem) libpmem=disabled
1505   ;;
1506   --disable-libpmem) libpmem=enabled
1507   ;;
1508   --enable-xkbcommon) xkbcommon="enabled"
1509   ;;
1510   --disable-xkbcommon) xkbcommon="disabled"
1511   ;;
1512   --enable-plugins) plugins="yes"
1513   ;;
1514   --disable-plugins) plugins="no"
1515   ;;
1516   --enable-containers) use_containers="yes"
1517   ;;
1518   --disable-containers) use_containers="no"
1519   ;;
1520   --enable-fuzzing) fuzzing=yes
1521   ;;
1522   --disable-fuzzing) fuzzing=no
1523   ;;
1524   --gdb=*) gdb_bin="$optarg"
1525   ;;
1526   --enable-rng-none) rng_none=yes
1527   ;;
1528   --disable-rng-none) rng_none=no
1529   ;;
1530   --enable-keyring) secret_keyring="yes"
1531   ;;
1532   --disable-keyring) secret_keyring="no"
1533   ;;
1534   --enable-libdaxctl) libdaxctl=disabled
1535   ;;
1536   --disable-libdaxctl) libdaxctl=enabled
1537   ;;
1538   --enable-fuse) fuse="enabled"
1539   ;;
1540   --disable-fuse) fuse="disabled"
1541   ;;
1542   --enable-fuse-lseek) fuse_lseek="enabled"
1543   ;;
1544   --disable-fuse-lseek) fuse_lseek="disabled"
1545   ;;
1546   --enable-multiprocess) multiprocess="enabled"
1547   ;;
1548   --disable-multiprocess) multiprocess="disabled"
1549   ;;
1550   --enable-gio) gio=yes
1551   ;;
1552   --disable-gio) gio=no
1553   ;;
1554   --enable-slirp-smbd) slirp_smbd=yes
1555   ;;
1556   --disable-slirp-smbd) slirp_smbd=no
1557   ;;
1558   *)
1559       echo "ERROR: unknown option $opt"
1560       echo "Try '$0 --help' for more information"
1561       exit 1
1562   ;;
1563   esac
1564 done
1565
1566 case $git_submodules_action in
1567     update|validate)
1568         if test ! -e "$source_path/.git"; then
1569             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1570             exit 1
1571         fi
1572     ;;
1573     ignore)
1574         if ! test -f "$source_path/ui/keycodemapdb/README"
1575         then
1576             echo
1577             echo "ERROR: missing GIT submodules"
1578             echo
1579             if test -e "$source_path/.git"; then
1580                 echo "--with-git-submodules=ignore specified but submodules were not"
1581                 echo "checked out.  Please initialize and update submodules."
1582             else
1583                 echo "This is not a GIT checkout but module content appears to"
1584                 echo "be missing. Do not use 'git archive' or GitHub download links"
1585                 echo "to acquire QEMU source archives. Non-GIT builds are only"
1586                 echo "supported with source archives linked from:"
1587                 echo
1588                 echo "  https://www.qemu.org/download/#source"
1589                 echo
1590                 echo "Developers working with GIT can use scripts/archive-source.sh"
1591                 echo "if they need to create valid source archives."
1592             fi
1593             echo
1594             exit 1
1595         fi
1596     ;;
1597     *)
1598         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1599         exit 1
1600     ;;
1601 esac
1602
1603 libdir="${libdir:-$prefix/lib}"
1604 libexecdir="${libexecdir:-$prefix/libexec}"
1605 includedir="${includedir:-$prefix/include}"
1606
1607 if test "$mingw32" = "yes" ; then
1608     bindir="${bindir:-$prefix}"
1609 else
1610     bindir="${bindir:-$prefix/bin}"
1611 fi
1612 mandir="${mandir:-$prefix/share/man}"
1613 datadir="${datadir:-$prefix/share}"
1614 docdir="${docdir:-$prefix/share/doc}"
1615 sysconfdir="${sysconfdir:-$prefix/etc}"
1616 local_statedir="${local_statedir:-$prefix/var}"
1617 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1618 localedir="${localedir:-$datadir/locale}"
1619
1620 case "$cpu" in
1621     ppc)
1622            CPU_CFLAGS="-m32"
1623            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1624            ;;
1625     ppc64)
1626            CPU_CFLAGS="-m64"
1627            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1628            ;;
1629     sparc)
1630            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1631            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1632            ;;
1633     sparc64)
1634            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1635            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1636            ;;
1637     s390)
1638            CPU_CFLAGS="-m31"
1639            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1640            ;;
1641     s390x)
1642            CPU_CFLAGS="-m64"
1643            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1644            ;;
1645     i386)
1646            CPU_CFLAGS="-m32"
1647            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1648            ;;
1649     x86_64)
1650            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1651            # If we truly care, we should simply detect this case at
1652            # runtime and generate the fallback to serial emulation.
1653            CPU_CFLAGS="-m64 -mcx16"
1654            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1655            ;;
1656     x32)
1657            CPU_CFLAGS="-mx32"
1658            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1659            ;;
1660     # No special flags required for other host CPUs
1661 esac
1662
1663 eval "cross_cc_${cpu}=\$cc"
1664 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1665 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1666
1667 # For user-mode emulation the host arch has to be one we explicitly
1668 # support, even if we're using TCI.
1669 if [ "$ARCH" = "unknown" ]; then
1670   bsd_user="no"
1671   linux_user="no"
1672 fi
1673
1674 default_target_list=""
1675 deprecated_targets_list=ppc64abi32-linux-user
1676 deprecated_features=""
1677 mak_wilds=""
1678
1679 if [ "$softmmu" = "yes" ]; then
1680     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1681 fi
1682 if [ "$linux_user" = "yes" ]; then
1683     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1684 fi
1685 if [ "$bsd_user" = "yes" ]; then
1686     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1687 fi
1688
1689 # If the user doesn't explicitly specify a deprecated target we will
1690 # skip it.
1691 if test -z "$target_list"; then
1692     if test -z "$target_list_exclude"; then
1693         target_list_exclude="$deprecated_targets_list"
1694     else
1695         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1696     fi
1697 fi
1698
1699 for config in $mak_wilds; do
1700     target="$(basename "$config" .mak)"
1701     if echo "$target_list_exclude" | grep -vq "$target"; then
1702         default_target_list="${default_target_list} $target"
1703     fi
1704 done
1705
1706 # Enumerate public trace backends for --help output
1707 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1708
1709 if test x"$show_help" = x"yes" ; then
1710 cat << EOF
1711
1712 Usage: configure [options]
1713 Options: [defaults in brackets after descriptions]
1714
1715 Standard options:
1716   --help                   print this message
1717   --prefix=PREFIX          install in PREFIX [$prefix]
1718   --interp-prefix=PREFIX   where to find shared libraries, etc.
1719                            use %M for cpu name [$interp_prefix]
1720   --target-list=LIST       set target list (default: build all non-deprecated)
1721 $(echo Available targets: $default_target_list | \
1722   fold -s -w 53 | sed -e 's/^/                           /')
1723 $(echo Deprecated targets: $deprecated_targets_list | \
1724   fold -s -w 53 | sed -e 's/^/                           /')
1725   --target-list-exclude=LIST exclude a set of targets from the default target-list
1726
1727 Advanced options (experts only):
1728   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1729   --cc=CC                  use C compiler CC [$cc]
1730   --iasl=IASL              use ACPI compiler IASL [$iasl]
1731   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1732                            build time
1733   --cxx=CXX                use C++ compiler CXX [$cxx]
1734   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1735   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1736   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1737   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1738   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1739   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1740   --make=MAKE              use specified make [$make]
1741   --python=PYTHON          use specified python [$python]
1742   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1743   --meson=MESON            use specified meson [$meson]
1744   --ninja=NINJA            use specified ninja [$ninja]
1745   --smbd=SMBD              use specified smbd [$smbd]
1746   --with-git=GIT           use specified git [$git]
1747   --with-git-submodules=update   update git submodules (default if .git dir exists)
1748   --with-git-submodules=validate fail if git submodules are not up to date
1749   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1750   --static                 enable static build [$static]
1751   --mandir=PATH            install man pages in PATH
1752   --datadir=PATH           install firmware in PATH/$qemu_suffix
1753   --localedir=PATH         install translation in PATH/$qemu_suffix
1754   --docdir=PATH            install documentation in PATH/$qemu_suffix
1755   --bindir=PATH            install binaries in PATH
1756   --libdir=PATH            install libraries in PATH
1757   --libexecdir=PATH        install helper binaries in PATH
1758   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1759   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1760   --firmwarepath=PATH      search PATH for firmware files
1761   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1762   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1763   --with-pkgversion=VERS   use specified string as sub-version of the package
1764   --without-default-features default all --enable-* options to "disabled"
1765   --without-default-devices  do not include any device that is not needed to
1766                            start the emulator (only use if you are including
1767                            desired devices in default-configs/devices/)
1768   --enable-debug           enable common debug build options
1769   --enable-sanitizers      enable default sanitizers
1770   --enable-tsan            enable thread sanitizer
1771   --disable-strip          disable stripping binaries
1772   --disable-werror         disable compilation abort on warning
1773   --disable-stack-protector disable compiler-provided stack protection
1774   --audio-drv-list=LIST    set audio drivers list:
1775                            Available drivers: $audio_possible_drivers
1776   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1777   --block-drv-rw-whitelist=L
1778                            set block driver read-write whitelist
1779                            (affects only QEMU, not qemu-img)
1780   --block-drv-ro-whitelist=L
1781                            set block driver read-only whitelist
1782                            (affects only QEMU, not qemu-img)
1783   --enable-trace-backends=B Set trace backend
1784                            Available backends: $trace_backend_list
1785   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1786                            Default:trace-<pid>
1787   --disable-slirp          disable SLIRP userspace network connectivity
1788   --enable-tcg-interpreter enable TCI (TCG with bytecode interpreter, experimental and slow)
1789   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1790   --oss-lib                path to OSS library
1791   --cpu=CPU                Build for host CPU [$cpu]
1792   --with-coroutine=BACKEND coroutine backend. Supported options:
1793                            ucontext, sigaltstack, windows
1794   --enable-gcov            enable test coverage analysis with gcov
1795   --disable-blobs          disable installing provided firmware blobs
1796   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1797   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1798   --tls-priority           default TLS protocol/cipher priority string
1799   --enable-gprof           QEMU profiling with gprof
1800   --enable-profiler        profiler support
1801   --enable-debug-stack-usage
1802                            track the maximum stack usage of stacks created by qemu_alloc_stack
1803   --enable-plugins
1804                            enable plugins via shared library loading
1805   --disable-containers     don't use containers for cross-building
1806   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1807
1808 Optional features, enabled with --enable-FEATURE and
1809 disabled with --disable-FEATURE, default is enabled if available
1810 (unless built with --without-default-features):
1811
1812   system          all system emulation targets
1813   user            supported user emulation targets
1814   linux-user      all linux usermode emulation targets
1815   bsd-user        all BSD usermode emulation targets
1816   docs            build documentation
1817   guest-agent     build the QEMU Guest Agent
1818   guest-agent-msi build guest agent Windows MSI installation package
1819   pie             Position Independent Executables
1820   modules         modules support (non-Windows)
1821   module-upgrades try to load modules from alternate paths for upgrades
1822   debug-tcg       TCG debugging (default is disabled)
1823   debug-info      debugging information
1824   lto             Enable Link-Time Optimization.
1825   sparse          sparse checker
1826   safe-stack      SafeStack Stack Smash Protection. Depends on
1827                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1828   cfi             Enable Control-Flow Integrity for indirect function calls.
1829                   In case of a cfi violation, QEMU is terminated with SIGILL
1830                   Depends on lto and is incompatible with modules
1831                   Automatically enables Link-Time Optimization (lto)
1832   cfi-debug       In case of a cfi violation, a message containing the line that
1833                   triggered the error is written to stderr. After the error,
1834                   QEMU is still terminated with SIGILL
1835   gnutls          GNUTLS cryptography support
1836   nettle          nettle cryptography support
1837   gcrypt          libgcrypt cryptography support
1838   auth-pam        PAM access control
1839   sdl             SDL UI
1840   sdl-image       SDL Image support for icons
1841   gtk             gtk UI
1842   vte             vte support for the gtk UI
1843   curses          curses UI
1844   iconv           font glyph conversion support
1845   vnc             VNC UI support
1846   vnc-sasl        SASL encryption for VNC server
1847   vnc-jpeg        JPEG lossy compression for VNC server
1848   vnc-png         PNG compression for VNC server
1849   cocoa           Cocoa UI (Mac OS X only)
1850   virtfs          VirtFS
1851   virtiofsd       build virtiofs daemon (virtiofsd)
1852   libudev         Use libudev to enumerate host devices
1853   mpath           Multipath persistent reservation passthrough
1854   xen             xen backend driver support
1855   xen-pci-passthrough    PCI passthrough support for Xen
1856   brlapi          BrlAPI (Braile)
1857   curl            curl connectivity
1858   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1859   fdt             fdt device tree
1860   kvm             KVM acceleration support
1861   hax             HAX acceleration support
1862   hvf             Hypervisor.framework acceleration support
1863   nvmm            NVMM acceleration support
1864   whpx            Windows Hypervisor Platform acceleration support
1865   rdma            Enable RDMA-based migration
1866   pvrdma          Enable PVRDMA support
1867   vde             support for vde network
1868   netmap          support for netmap network
1869   linux-aio       Linux AIO support
1870   linux-io-uring  Linux io_uring support
1871   cap-ng          libcap-ng support
1872   attr            attr and xattr support
1873   vhost-net       vhost-net kernel acceleration support
1874   vhost-vsock     virtio sockets device support
1875   vhost-scsi      vhost-scsi kernel target support
1876   vhost-crypto    vhost-user-crypto backend support
1877   vhost-kernel    vhost kernel backend support
1878   vhost-user      vhost-user backend support
1879   vhost-user-blk-server    vhost-user-blk server support
1880   vhost-vdpa      vhost-vdpa kernel backend support
1881   bpf             BPF kernel support
1882   spice           spice
1883   spice-protocol  spice-protocol
1884   rbd             rados block device (rbd)
1885   libiscsi        iscsi support
1886   libnfs          nfs support
1887   smartcard       smartcard support (libcacard)
1888   u2f             U2F support (u2f-emu)
1889   libusb          libusb (for usb passthrough)
1890   live-block-migration   Block migration in the main migration stream
1891   usb-redir       usb network redirection support
1892   lzo             support of lzo compression library
1893   snappy          support of snappy compression library
1894   bzip2           support of bzip2 compression library
1895                   (for reading bzip2-compressed dmg images)
1896   lzfse           support of lzfse compression library
1897                   (for reading lzfse-compressed dmg images)
1898   zstd            support for zstd compression library
1899                   (for migration compression and qcow2 cluster compression)
1900   seccomp         seccomp support
1901   coroutine-pool  coroutine freelist (better performance)
1902   glusterfs       GlusterFS backend
1903   tpm             TPM support
1904   libssh          ssh block device support
1905   numa            libnuma support
1906   libxml2         for Parallels image format
1907   tcmalloc        tcmalloc support
1908   jemalloc        jemalloc support
1909   avx2            AVX2 optimization support
1910   avx512f         AVX512F optimization support
1911   replication     replication support
1912   opengl          opengl support
1913   virglrenderer   virgl rendering support
1914   xfsctl          xfsctl support
1915   qom-cast-debug  cast debugging support
1916   tools           build qemu-io, qemu-nbd and qemu-img tools
1917   bochs           bochs image format support
1918   cloop           cloop image format support
1919   dmg             dmg image format support
1920   qcow1           qcow v1 image format support
1921   vdi             vdi image format support
1922   vvfat           vvfat image format support
1923   qed             qed image format support
1924   parallels       parallels image format support
1925   crypto-afalg    Linux AF_ALG crypto backend driver
1926   capstone        capstone disassembler support
1927   debug-mutex     mutex debugging support
1928   libpmem         libpmem support
1929   xkbcommon       xkbcommon support
1930   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1931   libdaxctl       libdaxctl support
1932   fuse            FUSE block device export
1933   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
1934   multiprocess    Out of process device emulation support
1935   gio             libgio support
1936   slirp-smbd      use smbd (at path --smbd=*) in slirp networking
1937
1938 NOTE: The object files are built at the place where configure is launched
1939 EOF
1940 exit 0
1941 fi
1942
1943 # Remove old dependency files to make sure that they get properly regenerated
1944 rm -f */config-devices.mak.d
1945
1946 if test -z "$python"
1947 then
1948     error_exit "Python not found. Use --python=/path/to/python"
1949 fi
1950 if ! has "$make"
1951 then
1952     error_exit "GNU make ($make) not found"
1953 fi
1954
1955 # Note that if the Python conditional here evaluates True we will exit
1956 # with status 1 which is a shell 'false' value.
1957 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1958   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1959       "Use --python=/path/to/python to specify a supported Python."
1960 fi
1961
1962 # Preserve python version since some functionality is dependent on it
1963 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)
1964
1965 # Suppress writing compiled files
1966 python="$python -B"
1967
1968 if test -z "$meson"; then
1969     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1970         meson=meson
1971     elif test $git_submodules_action != 'ignore' ; then
1972         meson=git
1973     elif test -e "${source_path}/meson/meson.py" ; then
1974         meson=internal
1975     else
1976         if test "$explicit_python" = yes; then
1977             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1978         else
1979             error_exit "Meson not found.  Use --meson=/path/to/meson"
1980         fi
1981     fi
1982 else
1983     # Meson uses its own Python interpreter to invoke other Python scripts,
1984     # but the user wants to use the one they specified with --python.
1985     #
1986     # We do not want to override the distro Python interpreter (and sometimes
1987     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1988     # just require --meson=git|internal together with --python.
1989     if test "$explicit_python" = yes; then
1990         case "$meson" in
1991             git | internal) ;;
1992             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1993         esac
1994     fi
1995 fi
1996
1997 if test "$meson" = git; then
1998     git_submodules="${git_submodules} meson"
1999 fi
2000
2001 case "$meson" in
2002     git | internal)
2003         meson="$python ${source_path}/meson/meson.py"
2004         ;;
2005     *) meson=$(command -v "$meson") ;;
2006 esac
2007
2008 # Probe for ninja
2009
2010 if test -z "$ninja"; then
2011     for c in ninja ninja-build samu; do
2012         if has $c; then
2013             ninja=$(command -v "$c")
2014             break
2015         fi
2016     done
2017     if test -z "$ninja"; then
2018       error_exit "Cannot find Ninja"
2019     fi
2020 fi
2021
2022 # Check that the C compiler works. Doing this here before testing
2023 # the host CPU ensures that we had a valid CC to autodetect the
2024 # $cpu var (and we should bail right here if that's not the case).
2025 # It also allows the help message to be printed without a CC.
2026 write_c_skeleton;
2027 if compile_object ; then
2028   : C compiler works ok
2029 else
2030     error_exit "\"$cc\" either does not exist or does not work"
2031 fi
2032 if ! compile_prog ; then
2033     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
2034 fi
2035
2036 # Consult white-list to determine whether to enable werror
2037 # by default.  Only enable by default for git builds
2038 if test -z "$werror" ; then
2039     if test "$git_submodules_action" != "ignore" && \
2040         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2041         werror="yes"
2042     else
2043         werror="no"
2044     fi
2045 fi
2046
2047 if test "$targetos" = "bogus"; then
2048     # Now that we know that we're not printing the help and that
2049     # the compiler works (so the results of the check_defines we used
2050     # to identify the OS are reliable), if we didn't recognize the
2051     # host OS we should stop now.
2052     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2053 fi
2054
2055 # Check whether the compiler matches our minimum requirements:
2056 cat > $TMPC << EOF
2057 #if defined(__clang_major__) && defined(__clang_minor__)
2058 # ifdef __apple_build_version__
2059 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
2060 #   error You need at least XCode Clang v10.0 to compile QEMU
2061 #  endif
2062 # else
2063 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
2064 #   error You need at least Clang v6.0 to compile QEMU
2065 #  endif
2066 # endif
2067 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2068 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 5)
2069 #  error You need at least GCC v7.5.0 to compile QEMU
2070 # endif
2071 #else
2072 # error You either need GCC or Clang to compiler QEMU
2073 #endif
2074 int main (void) { return 0; }
2075 EOF
2076 if ! compile_prog "" "" ; then
2077     error_exit "You need at least GCC v7.5 or Clang v6.0 (or XCode Clang v10.0)"
2078 fi
2079
2080 # Accumulate -Wfoo and -Wno-bar separately.
2081 # We will list all of the enable flags first, and the disable flags second.
2082 # Note that we do not add -Werror, because that would enable it for all
2083 # configure tests. If a configure test failed due to -Werror this would
2084 # just silently disable some features, so it's too error prone.
2085
2086 warn_flags=
2087 add_to warn_flags -Wold-style-declaration
2088 add_to warn_flags -Wold-style-definition
2089 add_to warn_flags -Wtype-limits
2090 add_to warn_flags -Wformat-security
2091 add_to warn_flags -Wformat-y2k
2092 add_to warn_flags -Winit-self
2093 add_to warn_flags -Wignored-qualifiers
2094 add_to warn_flags -Wempty-body
2095 add_to warn_flags -Wnested-externs
2096 add_to warn_flags -Wendif-labels
2097 add_to warn_flags -Wexpansion-to-defined
2098 add_to warn_flags -Wimplicit-fallthrough=2
2099
2100 nowarn_flags=
2101 add_to nowarn_flags -Wno-initializer-overrides
2102 add_to nowarn_flags -Wno-missing-include-dirs
2103 add_to nowarn_flags -Wno-shift-negative-value
2104 add_to nowarn_flags -Wno-string-plus-int
2105 add_to nowarn_flags -Wno-typedef-redefinition
2106 add_to nowarn_flags -Wno-tautological-type-limit-compare
2107 add_to nowarn_flags -Wno-psabi
2108
2109 gcc_flags="$warn_flags $nowarn_flags"
2110
2111 cc_has_warning_flag() {
2112     write_c_skeleton;
2113
2114     # Use the positive sense of the flag when testing for -Wno-wombat
2115     # support (gcc will happily accept the -Wno- form of unknown
2116     # warning options).
2117     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2118     compile_prog "-Werror $optflag" ""
2119 }
2120
2121 for flag in $gcc_flags; do
2122     if cc_has_warning_flag $flag ; then
2123         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2124     fi
2125 done
2126
2127 if test "$stack_protector" != "no"; then
2128   cat > $TMPC << EOF
2129 int main(int argc, char *argv[])
2130 {
2131     char arr[64], *p = arr, *c = argv[0];
2132     while (*c) {
2133         *p++ = *c++;
2134     }
2135     return 0;
2136 }
2137 EOF
2138   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2139   sp_on=0
2140   for flag in $gcc_flags; do
2141     # We need to check both a compile and a link, since some compiler
2142     # setups fail only on a .c->.o compile and some only at link time
2143     if compile_object "-Werror $flag" &&
2144        compile_prog "-Werror $flag" ""; then
2145       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2146       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2147       sp_on=1
2148       break
2149     fi
2150   done
2151   if test "$stack_protector" = yes; then
2152     if test $sp_on = 0; then
2153       error_exit "Stack protector not supported"
2154     fi
2155   fi
2156 fi
2157
2158 # Disable -Wmissing-braces on older compilers that warn even for
2159 # the "universal" C zero initializer {0}.
2160 cat > $TMPC << EOF
2161 struct {
2162   int a[2];
2163 } x = {0};
2164 EOF
2165 if compile_object "-Werror" "" ; then
2166   :
2167 else
2168   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2169 fi
2170
2171 # Our module code doesn't support Windows
2172 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2173   error_exit "Modules are not available for Windows"
2174 fi
2175
2176 # module_upgrades is only reasonable if modules are enabled
2177 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2178   error_exit "Can't enable module-upgrades as Modules are not enabled"
2179 fi
2180
2181 # Static linking is not possible with modules or PIE
2182 if test "$static" = "yes" ; then
2183   if test "$modules" = "yes" ; then
2184     error_exit "static and modules are mutually incompatible"
2185   fi
2186 fi
2187
2188 # Unconditional check for compiler __thread support
2189   cat > $TMPC << EOF
2190 static __thread int tls_var;
2191 int main(void) { return tls_var; }
2192 EOF
2193
2194 if ! compile_prog "-Werror" "" ; then
2195     error_exit "Your compiler does not support the __thread specifier for " \
2196         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2197 fi
2198
2199 cat > $TMPC << EOF
2200
2201 #ifdef __linux__
2202 #  define THREAD __thread
2203 #else
2204 #  define THREAD
2205 #endif
2206 static THREAD int tls_var;
2207 int main(void) { return tls_var; }
2208 EOF
2209
2210 # Check we support --no-pie first; we will need this for building ROMs.
2211 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2212   CFLAGS_NOPIE="-fno-pie"
2213 fi
2214
2215 if test "$static" = "yes"; then
2216   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2217     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2218     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2219     pie="yes"
2220   elif test "$pie" = "yes"; then
2221     error_exit "-static-pie not available due to missing toolchain support"
2222   else
2223     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2224     pie="no"
2225   fi
2226 elif test "$pie" = "no"; then
2227   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2228 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2229   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2230   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2231   pie="yes"
2232 elif test "$pie" = "yes"; then
2233   error_exit "PIE not available due to missing toolchain support"
2234 else
2235   echo "Disabling PIE due to missing toolchain support"
2236   pie="no"
2237 fi
2238
2239 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2240 # The combination is known as "full relro", because .got.plt is read-only too.
2241 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2242   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2243 fi
2244
2245 ##########################################
2246 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2247 # use i686 as default anyway, but for those that don't, an explicit
2248 # specification is necessary
2249
2250 if test "$cpu" = "i386"; then
2251   cat > $TMPC << EOF
2252 static int sfaa(int *ptr)
2253 {
2254   return __sync_fetch_and_and(ptr, 0);
2255 }
2256
2257 int main(void)
2258 {
2259   int val = 42;
2260   val = __sync_val_compare_and_swap(&val, 0, 1);
2261   sfaa(&val);
2262   return val;
2263 }
2264 EOF
2265   if ! compile_prog "" "" ; then
2266     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2267   fi
2268 fi
2269
2270 #########################################
2271 # Solaris specific configure tool chain decisions
2272
2273 if test "$solaris" = "yes" ; then
2274   if has ar; then
2275     :
2276   else
2277     if test -f /usr/ccs/bin/ar ; then
2278       error_exit "No path includes ar" \
2279           "Add /usr/ccs/bin to your path and rerun configure"
2280     fi
2281     error_exit "No path includes ar"
2282   fi
2283 fi
2284
2285 if test "$tcg" = "enabled"; then
2286     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
2287     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
2288 fi
2289
2290 if test -z "${target_list+xxx}" ; then
2291     default_targets=yes
2292     for target in $default_target_list; do
2293         target_list="$target_list $target"
2294     done
2295     target_list="${target_list# }"
2296 else
2297     default_targets=no
2298     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2299     for target in $target_list; do
2300         # Check that we recognised the target name; this allows a more
2301         # friendly error message than if we let it fall through.
2302         case " $default_target_list " in
2303             *" $target "*)
2304                 ;;
2305             *)
2306                 error_exit "Unknown target name '$target'"
2307                 ;;
2308         esac
2309     done
2310 fi
2311
2312 for target in $target_list; do
2313     # if a deprecated target is enabled we note it here
2314     if echo "$deprecated_targets_list" | grep -q "$target"; then
2315         add_to deprecated_features $target
2316     fi
2317 done
2318
2319 # see if system emulation was really requested
2320 case " $target_list " in
2321   *"-softmmu "*) softmmu=yes
2322   ;;
2323   *) softmmu=no
2324   ;;
2325 esac
2326
2327 feature_not_found() {
2328   feature=$1
2329   remedy=$2
2330
2331   error_exit "User requested feature $feature" \
2332       "configure was not able to find it." \
2333       "$remedy"
2334 }
2335
2336 # ---
2337 # big/little endian test
2338 cat > $TMPC << EOF
2339 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2340 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2341 extern int foo(short *, short *);
2342 int main(int argc, char *argv[]) {
2343     return foo(big_endian, little_endian);
2344 }
2345 EOF
2346
2347 if compile_object ; then
2348     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2349         bigendian="yes"
2350     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2351         bigendian="no"
2352     else
2353         echo big/little test failed
2354     fi
2355 else
2356     echo big/little test failed
2357 fi
2358
2359 ##########################################
2360 # system tools
2361 if test -z "$want_tools"; then
2362     if test "$softmmu" = "no"; then
2363         want_tools=no
2364     else
2365         want_tools=yes
2366     fi
2367 fi
2368
2369 ##########################################
2370 # Disable features only meaningful for system-mode emulation
2371 if test "$softmmu" = "no"; then
2372     audio_drv_list=""
2373 fi
2374
2375 ##########################################
2376 # L2TPV3 probe
2377
2378 cat > $TMPC <<EOF
2379 #include <sys/socket.h>
2380 #include <linux/ip.h>
2381 int main(void) { return sizeof(struct mmsghdr); }
2382 EOF
2383 if compile_prog "" "" ; then
2384   l2tpv3=yes
2385 else
2386   l2tpv3=no
2387 fi
2388
2389 cat > $TMPC <<EOF
2390 #include <sys/mman.h>
2391 int main(int argc, char *argv[]) {
2392     return mlockall(MCL_FUTURE);
2393 }
2394 EOF
2395 if compile_prog "" "" ; then
2396   have_mlockall=yes
2397 else
2398   have_mlockall=no
2399 fi
2400
2401 #########################################
2402 # vhost interdependencies and host support
2403
2404 # vhost backends
2405 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2406   error_exit "vhost-user is only available on Linux"
2407 fi
2408 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2409 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2410   error_exit "vhost-vdpa is only available on Linux"
2411 fi
2412 test "$vhost_kernel" = "" && vhost_kernel=$linux
2413 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2414   error_exit "vhost-kernel is only available on Linux"
2415 fi
2416
2417 # vhost-kernel devices
2418 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2419 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2420   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2421 fi
2422 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2423 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2424   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2425 fi
2426
2427 # vhost-user backends
2428 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2429 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2430   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2431 fi
2432 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2433 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2434   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2435 fi
2436 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2437 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2438   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2439 fi
2440 #vhost-vdpa backends
2441 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2442 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2443   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2444 fi
2445
2446 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2447 if test "$vhost_net" = ""; then
2448   test "$vhost_net_user" = "yes" && vhost_net=yes
2449   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2450   test "$vhost_kernel" = "yes" && vhost_net=yes
2451 fi
2452
2453 ##########################################
2454 # pkg-config probe
2455
2456 if ! has "$pkg_config_exe"; then
2457   error_exit "pkg-config binary '$pkg_config_exe' not found"
2458 fi
2459
2460 ##########################################
2461 # NPTL probe
2462
2463 if test "$linux_user" = "yes"; then
2464   cat > $TMPC <<EOF
2465 #include <sched.h>
2466 #include <linux/futex.h>
2467 int main(void) {
2468 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2469 #error bork
2470 #endif
2471   return 0;
2472 }
2473 EOF
2474   if ! compile_object ; then
2475     feature_not_found "nptl" "Install glibc and linux kernel headers."
2476   fi
2477 fi
2478
2479 ##########################################
2480 # xen probe
2481
2482 if test "$xen" != "disabled" ; then
2483   # Check whether Xen library path is specified via --extra-ldflags to avoid
2484   # overriding this setting with pkg-config output. If not, try pkg-config
2485   # to obtain all needed flags.
2486
2487   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2488      $pkg_config --exists xencontrol ; then
2489     xen_ctrl_version="$(printf '%d%02d%02d' \
2490       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2491     xen=enabled
2492     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2493     xen_pc="$xen_pc xenevtchn xendevicemodel"
2494     if $pkg_config --exists xentoolcore; then
2495       xen_pc="$xen_pc xentoolcore"
2496     fi
2497     xen_cflags="$($pkg_config --cflags $xen_pc)"
2498     xen_libs="$($pkg_config --libs $xen_pc)"
2499   else
2500
2501     xen_libs="-lxenstore -lxenctrl"
2502     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2503
2504     # First we test whether Xen headers and libraries are available.
2505     # If no, we are done and there is no Xen support.
2506     # If yes, more tests are run to detect the Xen version.
2507
2508     # Xen (any)
2509     cat > $TMPC <<EOF
2510 #include <xenctrl.h>
2511 int main(void) {
2512   return 0;
2513 }
2514 EOF
2515     if ! compile_prog "" "$xen_libs" ; then
2516       # Xen not found
2517       if test "$xen" = "enabled" ; then
2518         feature_not_found "xen" "Install xen devel"
2519       fi
2520       xen=disabled
2521
2522     # Xen unstable
2523     elif
2524         cat > $TMPC <<EOF &&
2525 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2526 #define __XEN_TOOLS__
2527 #include <xendevicemodel.h>
2528 #include <xenforeignmemory.h>
2529 int main(void) {
2530   xendevicemodel_handle *xd;
2531   xenforeignmemory_handle *xfmem;
2532
2533   xd = xendevicemodel_open(0, 0);
2534   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2535
2536   xfmem = xenforeignmemory_open(0, 0);
2537   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2538
2539   return 0;
2540 }
2541 EOF
2542         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2543       then
2544       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2545       xen_ctrl_version=41100
2546       xen=enabled
2547     elif
2548         cat > $TMPC <<EOF &&
2549 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2550 #include <xenforeignmemory.h>
2551 #include <xentoolcore.h>
2552 int main(void) {
2553   xenforeignmemory_handle *xfmem;
2554
2555   xfmem = xenforeignmemory_open(0, 0);
2556   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2557   xentoolcore_restrict_all(0);
2558
2559   return 0;
2560 }
2561 EOF
2562         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2563       then
2564       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2565       xen_ctrl_version=41000
2566       xen=enabled
2567     elif
2568         cat > $TMPC <<EOF &&
2569 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2570 #define __XEN_TOOLS__
2571 #include <xendevicemodel.h>
2572 int main(void) {
2573   xendevicemodel_handle *xd;
2574
2575   xd = xendevicemodel_open(0, 0);
2576   xendevicemodel_close(xd);
2577
2578   return 0;
2579 }
2580 EOF
2581         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2582       then
2583       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2584       xen_ctrl_version=40900
2585       xen=enabled
2586     elif
2587         cat > $TMPC <<EOF &&
2588 /*
2589  * If we have stable libs the we don't want the libxc compat
2590  * layers, regardless of what CFLAGS we may have been given.
2591  *
2592  * Also, check if xengnttab_grant_copy_segment_t is defined and
2593  * grant copy operation is implemented.
2594  */
2595 #undef XC_WANT_COMPAT_EVTCHN_API
2596 #undef XC_WANT_COMPAT_GNTTAB_API
2597 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2598 #include <xenctrl.h>
2599 #include <xenstore.h>
2600 #include <xenevtchn.h>
2601 #include <xengnttab.h>
2602 #include <xenforeignmemory.h>
2603 #include <stdint.h>
2604 #include <xen/hvm/hvm_info_table.h>
2605 #if !defined(HVM_MAX_VCPUS)
2606 # error HVM_MAX_VCPUS not defined
2607 #endif
2608 int main(void) {
2609   xc_interface *xc = NULL;
2610   xenforeignmemory_handle *xfmem;
2611   xenevtchn_handle *xe;
2612   xengnttab_handle *xg;
2613   xengnttab_grant_copy_segment_t* seg = NULL;
2614
2615   xs_daemon_open();
2616
2617   xc = xc_interface_open(0, 0, 0);
2618   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2619   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2620   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2621   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2622
2623   xfmem = xenforeignmemory_open(0, 0);
2624   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2625
2626   xe = xenevtchn_open(0, 0);
2627   xenevtchn_fd(xe);
2628
2629   xg = xengnttab_open(0, 0);
2630   xengnttab_grant_copy(xg, 0, seg);
2631
2632   return 0;
2633 }
2634 EOF
2635         compile_prog "" "$xen_libs $xen_stable_libs"
2636       then
2637       xen_ctrl_version=40800
2638       xen=enabled
2639     elif
2640         cat > $TMPC <<EOF &&
2641 /*
2642  * If we have stable libs the we don't want the libxc compat
2643  * layers, regardless of what CFLAGS we may have been given.
2644  */
2645 #undef XC_WANT_COMPAT_EVTCHN_API
2646 #undef XC_WANT_COMPAT_GNTTAB_API
2647 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2648 #include <xenctrl.h>
2649 #include <xenstore.h>
2650 #include <xenevtchn.h>
2651 #include <xengnttab.h>
2652 #include <xenforeignmemory.h>
2653 #include <stdint.h>
2654 #include <xen/hvm/hvm_info_table.h>
2655 #if !defined(HVM_MAX_VCPUS)
2656 # error HVM_MAX_VCPUS not defined
2657 #endif
2658 int main(void) {
2659   xc_interface *xc = NULL;
2660   xenforeignmemory_handle *xfmem;
2661   xenevtchn_handle *xe;
2662   xengnttab_handle *xg;
2663
2664   xs_daemon_open();
2665
2666   xc = xc_interface_open(0, 0, 0);
2667   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2668   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2669   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2670   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2671
2672   xfmem = xenforeignmemory_open(0, 0);
2673   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2674
2675   xe = xenevtchn_open(0, 0);
2676   xenevtchn_fd(xe);
2677
2678   xg = xengnttab_open(0, 0);
2679   xengnttab_map_grant_ref(xg, 0, 0, 0);
2680
2681   return 0;
2682 }
2683 EOF
2684         compile_prog "" "$xen_libs $xen_stable_libs"
2685       then
2686       xen_ctrl_version=40701
2687       xen=enabled
2688
2689     # Xen 4.6
2690     elif
2691         cat > $TMPC <<EOF &&
2692 #include <xenctrl.h>
2693 #include <xenstore.h>
2694 #include <stdint.h>
2695 #include <xen/hvm/hvm_info_table.h>
2696 #if !defined(HVM_MAX_VCPUS)
2697 # error HVM_MAX_VCPUS not defined
2698 #endif
2699 int main(void) {
2700   xc_interface *xc;
2701   xs_daemon_open();
2702   xc = xc_interface_open(0, 0, 0);
2703   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2704   xc_gnttab_open(NULL, 0);
2705   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2706   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2707   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2708   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2709   return 0;
2710 }
2711 EOF
2712         compile_prog "" "$xen_libs"
2713       then
2714       xen_ctrl_version=40600
2715       xen=enabled
2716
2717     # Xen 4.5
2718     elif
2719         cat > $TMPC <<EOF &&
2720 #include <xenctrl.h>
2721 #include <xenstore.h>
2722 #include <stdint.h>
2723 #include <xen/hvm/hvm_info_table.h>
2724 #if !defined(HVM_MAX_VCPUS)
2725 # error HVM_MAX_VCPUS not defined
2726 #endif
2727 int main(void) {
2728   xc_interface *xc;
2729   xs_daemon_open();
2730   xc = xc_interface_open(0, 0, 0);
2731   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2732   xc_gnttab_open(NULL, 0);
2733   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2734   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2735   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2736   return 0;
2737 }
2738 EOF
2739         compile_prog "" "$xen_libs"
2740       then
2741       xen_ctrl_version=40500
2742       xen=enabled
2743
2744     elif
2745         cat > $TMPC <<EOF &&
2746 #include <xenctrl.h>
2747 #include <xenstore.h>
2748 #include <stdint.h>
2749 #include <xen/hvm/hvm_info_table.h>
2750 #if !defined(HVM_MAX_VCPUS)
2751 # error HVM_MAX_VCPUS not defined
2752 #endif
2753 int main(void) {
2754   xc_interface *xc;
2755   xs_daemon_open();
2756   xc = xc_interface_open(0, 0, 0);
2757   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2758   xc_gnttab_open(NULL, 0);
2759   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2760   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2761   return 0;
2762 }
2763 EOF
2764         compile_prog "" "$xen_libs"
2765       then
2766       xen_ctrl_version=40200
2767       xen=enabled
2768
2769     else
2770       if test "$xen" = "enabled" ; then
2771         feature_not_found "xen (unsupported version)" \
2772                           "Install a supported xen (xen 4.2 or newer)"
2773       fi
2774       xen=disabled
2775     fi
2776
2777     if test "$xen" = enabled; then
2778       if test $xen_ctrl_version -ge 40701  ; then
2779         xen_libs="$xen_libs $xen_stable_libs "
2780       fi
2781     fi
2782   fi
2783 fi
2784
2785 ##########################################
2786 # RDMA needs OpenFabrics libraries
2787 if test "$rdma" != "no" ; then
2788   cat > $TMPC <<EOF
2789 #include <rdma/rdma_cma.h>
2790 int main(void) { return 0; }
2791 EOF
2792   rdma_libs="-lrdmacm -libverbs -libumad"
2793   if compile_prog "" "$rdma_libs" ; then
2794     rdma="yes"
2795   else
2796     if test "$rdma" = "yes" ; then
2797         error_exit \
2798             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
2799             " Your options:" \
2800             "  (1) Fast: Install infiniband packages (devel) from your distro." \
2801             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
2802             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
2803     fi
2804     rdma="no"
2805   fi
2806 fi
2807
2808 ##########################################
2809 # PVRDMA detection
2810
2811 cat > $TMPC <<EOF &&
2812 #include <sys/mman.h>
2813
2814 int
2815 main(void)
2816 {
2817     char buf = 0;
2818     void *addr = &buf;
2819     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2820
2821     return 0;
2822 }
2823 EOF
2824
2825 if test "$rdma" = "yes" ; then
2826     case "$pvrdma" in
2827     "")
2828         if compile_prog "" ""; then
2829             pvrdma="yes"
2830         else
2831             pvrdma="no"
2832         fi
2833         ;;
2834     "yes")
2835         if ! compile_prog "" ""; then
2836             error_exit "PVRDMA is not supported since mremap is not implemented"
2837         fi
2838         pvrdma="yes"
2839         ;;
2840     "no")
2841         pvrdma="no"
2842         ;;
2843     esac
2844 else
2845     if test "$pvrdma" = "yes" ; then
2846         error_exit "PVRDMA requires rdma suppport"
2847     fi
2848     pvrdma="no"
2849 fi
2850
2851 # Let's see if enhanced reg_mr is supported
2852 if test "$pvrdma" = "yes" ; then
2853
2854 cat > $TMPC <<EOF &&
2855 #include <infiniband/verbs.h>
2856
2857 int
2858 main(void)
2859 {
2860     struct ibv_mr *mr;
2861     struct ibv_pd *pd = NULL;
2862     size_t length = 10;
2863     uint64_t iova = 0;
2864     int access = 0;
2865     void *addr = NULL;
2866
2867     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2868
2869     ibv_dereg_mr(mr);
2870
2871     return 0;
2872 }
2873 EOF
2874     if ! compile_prog "" "-libverbs"; then
2875         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
2876     fi
2877 fi
2878
2879 ##########################################
2880 # xfsctl() probe, used for file-posix.c
2881 if test "$xfs" != "no" ; then
2882   cat > $TMPC << EOF
2883 #include <stddef.h>  /* NULL */
2884 #include <xfs/xfs.h>
2885 int main(void)
2886 {
2887     xfsctl(NULL, 0, 0, NULL);
2888     return 0;
2889 }
2890 EOF
2891   if compile_prog "" "" ; then
2892     xfs="yes"
2893   else
2894     if test "$xfs" = "yes" ; then
2895       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
2896     fi
2897     xfs=no
2898   fi
2899 fi
2900
2901 ##########################################
2902 # vde libraries probe
2903 if test "$vde" != "no" ; then
2904   vde_libs="-lvdeplug"
2905   cat > $TMPC << EOF
2906 #include <libvdeplug.h>
2907 int main(void)
2908 {
2909     struct vde_open_args a = {0, 0, 0};
2910     char s[] = "";
2911     vde_open(s, s, &a);
2912     return 0;
2913 }
2914 EOF
2915   if compile_prog "" "$vde_libs" ; then
2916     vde=yes
2917   else
2918     if test "$vde" = "yes" ; then
2919       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
2920     fi
2921     vde=no
2922   fi
2923 fi
2924
2925 ##########################################
2926 # netmap support probe
2927 # Apart from looking for netmap headers, we make sure that the host API version
2928 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
2929 # a minor/major version number. Minor new features will be marked with values up
2930 # to 15, and if something happens that requires a change to the backend we will
2931 # move above 15, submit the backend fixes and modify this two bounds.
2932 if test "$netmap" != "no" ; then
2933   cat > $TMPC << EOF
2934 #include <inttypes.h>
2935 #include <net/if.h>
2936 #include <net/netmap.h>
2937 #include <net/netmap_user.h>
2938 #if (NETMAP_API < 11) || (NETMAP_API > 15)
2939 #error
2940 #endif
2941 int main(void) { return 0; }
2942 EOF
2943   if compile_prog "" "" ; then
2944     netmap=yes
2945   else
2946     if test "$netmap" = "yes" ; then
2947       feature_not_found "netmap"
2948     fi
2949     netmap=no
2950   fi
2951 fi
2952
2953 ##########################################
2954 # detect CoreAudio
2955 if test "$coreaudio" != "no" ; then
2956   coreaudio_libs="-framework CoreAudio"
2957   cat > $TMPC << EOF
2958 #include <CoreAudio/CoreAudio.h>
2959 int main(void)
2960 {
2961   return (int)AudioGetCurrentHostTime();
2962 }
2963 EOF
2964   if compile_prog "" "$coreaudio_libs" ; then
2965     coreaudio=yes
2966   else
2967     coreaudio=no
2968   fi
2969 fi
2970
2971 ##########################################
2972 # Sound support libraries probe
2973
2974 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
2975 for drv in $audio_drv_list; do
2976     case $drv in
2977     alsa | try-alsa)
2978     if $pkg_config alsa --exists; then
2979         alsa_libs=$($pkg_config alsa --libs)
2980         alsa_cflags=$($pkg_config alsa --cflags)
2981         alsa=yes
2982         if test "$drv" = "try-alsa"; then
2983             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
2984         fi
2985     else
2986         if test "$drv" = "try-alsa"; then
2987             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
2988         else
2989             error_exit "$drv check failed" \
2990                 "Make sure to have the $drv libs and headers installed."
2991         fi
2992     fi
2993     ;;
2994
2995     pa | try-pa)
2996     if $pkg_config libpulse --exists; then
2997         libpulse=yes
2998         pulse_libs=$($pkg_config libpulse --libs)
2999         pulse_cflags=$($pkg_config libpulse --cflags)
3000         if test "$drv" = "try-pa"; then
3001             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3002         fi
3003     else
3004         if test "$drv" = "try-pa"; then
3005             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3006         else
3007             error_exit "$drv check failed" \
3008                 "Make sure to have the $drv libs and headers installed."
3009         fi
3010     fi
3011     ;;
3012
3013     sdl)
3014     if test "$sdl" = "no"; then
3015         error_exit "sdl not found or disabled, can not use sdl audio driver"
3016     fi
3017     ;;
3018
3019     try-sdl)
3020     if test "$sdl" = "no"; then
3021         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3022     else
3023         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3024     fi
3025     ;;
3026
3027     coreaudio | try-coreaudio)
3028     if test "$coreaudio" = "no"; then
3029       if test "$drv" = "try-coreaudio"; then
3030         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio//')
3031       else
3032         error_exit "$drv check failed" \
3033                 "Make sure to have the $drv is available."
3034       fi
3035     else
3036       coreaudio_libs="-framework CoreAudio"
3037       if test "$drv" = "try-coreaudio"; then
3038         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio/coreaudio/')
3039       fi
3040     fi
3041     ;;
3042
3043     dsound)
3044       dsound_libs="-lole32 -ldxguid"
3045       audio_win_int="yes"
3046     ;;
3047
3048     oss)
3049       oss_libs="$oss_lib"
3050     ;;
3051
3052     jack | try-jack)
3053     if $pkg_config jack --exists; then
3054         libjack=yes
3055         jack_libs=$($pkg_config jack --libs)
3056         if test "$drv" = "try-jack"; then
3057             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3058         fi
3059     else
3060         if test "$drv" = "try-jack"; then
3061             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3062         else
3063             error_exit "$drv check failed" \
3064                 "Make sure to have the $drv libs and headers installed."
3065         fi
3066     fi
3067     ;;
3068
3069     *)
3070     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3071         error_exit "Unknown driver '$drv' selected" \
3072             "Possible drivers are: $audio_possible_drivers"
3073     }
3074     ;;
3075     esac
3076 done
3077
3078 ##########################################
3079 # glib support probe
3080
3081 glib_req_ver=2.56
3082 glib_modules=gthread-2.0
3083 if test "$modules" = yes; then
3084     glib_modules="$glib_modules gmodule-export-2.0"
3085 fi
3086 if test "$plugins" = yes; then
3087     glib_modules="$glib_modules gmodule-2.0"
3088 fi
3089
3090 for i in $glib_modules; do
3091     if $pkg_config --atleast-version=$glib_req_ver $i; then
3092         glib_cflags=$($pkg_config --cflags $i)
3093         glib_libs=$($pkg_config --libs $i)
3094     else
3095         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3096     fi
3097 done
3098
3099 # This workaround is required due to a bug in pkg-config file for glib as it
3100 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3101
3102 if test "$static" = yes && test "$mingw32" = yes; then
3103     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3104 fi
3105
3106 if ! test "$gio" = "no"; then
3107     pass=no
3108     if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3109         gio_cflags=$($pkg_config --cflags gio-2.0)
3110         gio_libs=$($pkg_config --libs gio-2.0)
3111         gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3112         if ! has "$gdbus_codegen"; then
3113             gdbus_codegen=
3114         fi
3115         # Check that the libraries actually work -- Ubuntu 18.04 ships
3116         # with pkg-config --static --libs data for gio-2.0 that is missing
3117         # -lblkid and will give a link error.
3118         cat > $TMPC <<EOF
3119 #include <gio/gio.h>
3120 int main(void)
3121 {
3122     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3123     return 0;
3124 }
3125 EOF
3126         if compile_prog "$gio_cflags" "$gio_libs" ; then
3127             pass=yes
3128         else
3129             pass=no
3130         fi
3131
3132         if test "$pass" = "yes" &&
3133             $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3134             gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3135             gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3136         fi
3137     fi
3138
3139     if test "$pass" = "no"; then
3140         if test "$gio" = "yes"; then
3141             feature_not_found "gio" "Install libgio >= 2.0"
3142         else
3143             gio=no
3144         fi
3145     else
3146         gio=yes
3147     fi
3148 fi
3149
3150 # Sanity check that the current size_t matches the
3151 # size that glib thinks it should be. This catches
3152 # problems on multi-arch where people try to build
3153 # 32-bit QEMU while pointing at 64-bit glib headers
3154 cat > $TMPC <<EOF
3155 #include <glib.h>
3156 #include <unistd.h>
3157
3158 #define QEMU_BUILD_BUG_ON(x) \
3159   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3160
3161 int main(void) {
3162    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3163    return 0;
3164 }
3165 EOF
3166
3167 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3168     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3169                "You probably need to set PKG_CONFIG_LIBDIR"\
3170                "to point to the right pkg-config files for your"\
3171                "build target"
3172 fi
3173
3174 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3175 cat > $TMPC << EOF
3176 #include <glib.h>
3177 int main(void) { return 0; }
3178 EOF
3179 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3180     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3181         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3182         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3183     fi
3184 fi
3185
3186 # Silence clang warnings triggered by glib < 2.57.2
3187 cat > $TMPC << EOF
3188 #include <glib.h>
3189 typedef struct Foo {
3190     int i;
3191 } Foo;
3192 static void foo_free(Foo *f)
3193 {
3194     g_free(f);
3195 }
3196 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3197 int main(void) { return 0; }
3198 EOF
3199 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3200     if cc_has_warning_flag "-Wno-unused-function"; then
3201         glib_cflags="$glib_cflags -Wno-unused-function"
3202         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3203     fi
3204 fi
3205
3206 ##########################################
3207 # SHA command probe for modules
3208 if test "$modules" = yes; then
3209     shacmd_probe="sha1sum sha1 shasum"
3210     for c in $shacmd_probe; do
3211         if has $c; then
3212             shacmd="$c"
3213             break
3214         fi
3215     done
3216     if test "$shacmd" = ""; then
3217         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3218     fi
3219 fi
3220
3221 ##########################################
3222 # pthread probe
3223 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3224
3225 pthread=no
3226 cat > $TMPC << EOF
3227 #include <pthread.h>
3228 static void *f(void *p) { return NULL; }
3229 int main(void) {
3230   pthread_t thread;
3231   pthread_create(&thread, 0, f, 0);
3232   return 0;
3233 }
3234 EOF
3235 if compile_prog "" "" ; then
3236   pthread=yes
3237 else
3238   for pthread_lib in $PTHREADLIBS_LIST; do
3239     if compile_prog "" "$pthread_lib" ; then
3240       pthread=yes
3241       break
3242     fi
3243   done
3244 fi
3245
3246 if test "$mingw32" != yes && test "$pthread" = no; then
3247   error_exit "pthread check failed" \
3248       "Make sure to have the pthread libs and headers installed."
3249 fi
3250
3251 # check for pthread_setname_np with thread id
3252 pthread_setname_np_w_tid=no
3253 cat > $TMPC << EOF
3254 #include <pthread.h>
3255
3256 static void *f(void *p) { return NULL; }
3257 int main(void)
3258 {
3259     pthread_t thread;
3260     pthread_create(&thread, 0, f, 0);
3261     pthread_setname_np(thread, "QEMU");
3262     return 0;
3263 }
3264 EOF
3265 if compile_prog "" "$pthread_lib" ; then
3266   pthread_setname_np_w_tid=yes
3267 fi
3268
3269 # check for pthread_setname_np without thread id
3270 pthread_setname_np_wo_tid=no
3271 cat > $TMPC << EOF
3272 #include <pthread.h>
3273
3274 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3275 int main(void)
3276 {
3277     pthread_t thread;
3278     pthread_create(&thread, 0, f, 0);
3279     return 0;
3280 }
3281 EOF
3282 if compile_prog "" "$pthread_lib" ; then
3283   pthread_setname_np_wo_tid=yes
3284 fi
3285
3286 ##########################################
3287 # libssh probe
3288 if test "$libssh" != "no" ; then
3289   if $pkg_config --exists "libssh >= 0.8.7"; then
3290     libssh_cflags=$($pkg_config libssh --cflags)
3291     libssh_libs=$($pkg_config libssh --libs)
3292     libssh=yes
3293   else
3294     if test "$libssh" = "yes" ; then
3295       error_exit "libssh required for --enable-libssh"
3296     fi
3297     libssh=no
3298   fi
3299 fi
3300
3301 ##########################################
3302 # linux-aio probe
3303
3304 if test "$linux_aio" != "no" ; then
3305   cat > $TMPC <<EOF
3306 #include <libaio.h>
3307 #include <sys/eventfd.h>
3308 #include <stddef.h>
3309 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3310 EOF
3311   if compile_prog "" "-laio" ; then
3312     linux_aio=yes
3313   else
3314     if test "$linux_aio" = "yes" ; then
3315       feature_not_found "linux AIO" "Install libaio devel"
3316     fi
3317     linux_aio=no
3318   fi
3319 fi
3320
3321 ##########################################
3322 # TPM emulation is only on POSIX
3323
3324 if test "$tpm" = ""; then
3325   if test "$mingw32" = "yes"; then
3326     tpm=no
3327   else
3328     tpm=yes
3329   fi
3330 elif test "$tpm" = "yes"; then
3331   if test "$mingw32" = "yes" ; then
3332     error_exit "TPM emulation only available on POSIX systems"
3333   fi
3334 fi
3335
3336 ##########################################
3337 # iovec probe
3338 cat > $TMPC <<EOF
3339 #include <sys/types.h>
3340 #include <sys/uio.h>
3341 #include <unistd.h>
3342 int main(void) { return sizeof(struct iovec); }
3343 EOF
3344 iovec=no
3345 if compile_prog "" "" ; then
3346   iovec=yes
3347 fi
3348
3349 ##########################################
3350 # fdt probe
3351
3352 case "$fdt" in
3353   auto | enabled | internal)
3354     # Simpler to always update submodule, even if not needed.
3355     git_submodules="${git_submodules} dtc"
3356     ;;
3357 esac
3358
3359 ##########################################
3360 # opengl probe (for sdl2, gtk)
3361
3362 gbm="no"
3363 if $pkg_config gbm; then
3364     gbm_cflags="$($pkg_config --cflags gbm)"
3365     gbm_libs="$($pkg_config --libs gbm)"
3366     gbm="yes"
3367 fi
3368
3369 if test "$opengl" != "no" ; then
3370   epoxy=no
3371   if $pkg_config epoxy; then
3372     cat > $TMPC << EOF
3373 #include <epoxy/egl.h>
3374 int main(void) { return 0; }
3375 EOF
3376     if compile_prog "" "" ; then
3377       epoxy=yes
3378     fi
3379   fi
3380
3381   if test "$epoxy" = "yes" ; then
3382     opengl_cflags="$($pkg_config --cflags epoxy)"
3383     opengl_libs="$($pkg_config --libs epoxy)"
3384     opengl=yes
3385   else
3386     if test "$opengl" = "yes" ; then
3387       feature_not_found "opengl" "Please install epoxy with EGL"
3388     fi
3389     opengl_cflags=""
3390     opengl_libs=""
3391     opengl=no
3392   fi
3393 fi
3394
3395 ##########################################
3396 # libnuma probe
3397
3398 if test "$numa" != "no" ; then
3399   cat > $TMPC << EOF
3400 #include <numa.h>
3401 int main(void) { return numa_available(); }
3402 EOF
3403
3404   if compile_prog "" "-lnuma" ; then
3405     numa=yes
3406     numa_libs="-lnuma"
3407   else
3408     if test "$numa" = "yes" ; then
3409       feature_not_found "numa" "install numactl devel"
3410     fi
3411     numa=no
3412   fi
3413 fi
3414
3415 malloc=system
3416 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
3417     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
3418     exit 1
3419 elif test "$tcmalloc" = "yes" ; then
3420     malloc=tcmalloc
3421 elif test "$jemalloc" = "yes" ; then
3422     malloc=jemalloc
3423 fi
3424
3425 # check for usbfs
3426 have_usbfs=no
3427 if test "$linux_user" = "yes"; then
3428   cat > $TMPC << EOF
3429 #include <linux/usbdevice_fs.h>
3430
3431 #ifndef USBDEVFS_GET_CAPABILITIES
3432 #error "USBDEVFS_GET_CAPABILITIES undefined"
3433 #endif
3434
3435 #ifndef USBDEVFS_DISCONNECT_CLAIM
3436 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
3437 #endif
3438
3439 int main(void)
3440 {
3441     return 0;
3442 }
3443 EOF
3444   if compile_prog "" ""; then
3445     have_usbfs=yes
3446   fi
3447 fi
3448
3449 ##########################################
3450 # spice probe
3451 if test "$spice_protocol" != "no" ; then
3452   spice_protocol_cflags=$($pkg_config --cflags spice-protocol 2>/dev/null)
3453   if $pkg_config --atleast-version=0.12.3 spice-protocol; then
3454     spice_protocol="yes"
3455   else
3456     if test "$spice_protocol" = "yes" ; then
3457       feature_not_found "spice_protocol" \
3458           "Install spice-protocol(>=0.12.3) devel"
3459     fi
3460     spice_protocol="no"
3461   fi
3462 fi
3463
3464 if test "$spice" != "no" ; then
3465   cat > $TMPC << EOF
3466 #include <spice.h>
3467 int main(void) { spice_server_new(); return 0; }
3468 EOF
3469   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
3470   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
3471   if $pkg_config --atleast-version=0.12.5 spice-server && \
3472      test "$spice_protocol" = "yes" && \
3473      compile_prog "$spice_cflags" "$spice_libs" ; then
3474     spice="yes"
3475   else
3476     if test "$spice" = "yes" ; then
3477       feature_not_found "spice" \
3478           "Install spice-server(>=0.12.5) devel"
3479     fi
3480     spice="no"
3481   fi
3482 fi
3483
3484 ##########################################
3485 # check if we have VSS SDK headers for win
3486
3487 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
3488         test "$vss_win32_sdk" != "no" ; then
3489   case "$vss_win32_sdk" in
3490     "")   vss_win32_include="-isystem $source_path" ;;
3491     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
3492           # handle path with spaces. So we symlink the headers into ".sdk/vss".
3493           vss_win32_include="-isystem $source_path/.sdk/vss"
3494           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
3495           ;;
3496     *)    vss_win32_include="-isystem $vss_win32_sdk"
3497   esac
3498   cat > $TMPC << EOF
3499 #define __MIDL_user_allocate_free_DEFINED__
3500 #include <inc/win2003/vss.h>
3501 int main(void) { return VSS_CTX_BACKUP; }
3502 EOF
3503   if compile_prog "$vss_win32_include" "" ; then
3504     guest_agent_with_vss="yes"
3505     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
3506     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
3507     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
3508   else
3509     if test "$vss_win32_sdk" != "" ; then
3510       echo "ERROR: Please download and install Microsoft VSS SDK:"
3511       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
3512       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
3513       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
3514       echo "ERROR: The headers are extracted in the directory \`inc'."
3515       feature_not_found "VSS support"
3516     fi
3517     guest_agent_with_vss="no"
3518   fi
3519 fi
3520
3521 ##########################################
3522 # lookup Windows platform SDK (if not specified)
3523 # The SDK is needed only to build .tlb (type library) file of guest agent
3524 # VSS provider from the source. It is usually unnecessary because the
3525 # pre-compiled .tlb file is included.
3526
3527 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
3528         test "$guest_agent_with_vss" = "yes" ; then
3529   if test -z "$win_sdk"; then
3530     programfiles="$PROGRAMFILES"
3531     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
3532     if test -n "$programfiles"; then
3533       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
3534     else
3535       feature_not_found "Windows SDK"
3536     fi
3537   elif test "$win_sdk" = "no"; then
3538     win_sdk=""
3539   fi
3540 fi
3541
3542 ##########################################
3543 # check if mingw environment provides a recent ntddscsi.h
3544 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
3545   cat > $TMPC << EOF
3546 #include <windows.h>
3547 #include <ntddscsi.h>
3548 int main(void) {
3549 #if !defined(IOCTL_SCSI_GET_ADDRESS)
3550 #error Missing required ioctl definitions
3551 #endif
3552   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
3553   return addr.Lun;
3554 }
3555 EOF
3556   if compile_prog "" "" ; then
3557     guest_agent_ntddscsi=yes
3558     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
3559   fi
3560 fi
3561
3562 ##########################################
3563 # capstone
3564
3565 case "$capstone" in
3566   auto | enabled | internal)
3567     # Simpler to always update submodule, even if not needed.
3568     git_submodules="${git_submodules} capstone"
3569     ;;
3570 esac
3571
3572 ##########################################
3573 # check if we have posix_syslog
3574
3575 posix_syslog=no
3576 cat > $TMPC << EOF
3577 #include <syslog.h>
3578 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
3579 EOF
3580 if compile_prog "" "" ; then
3581     posix_syslog=yes
3582 fi
3583
3584 ##########################################
3585 # check if trace backend exists
3586
3587 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
3588 if test "$?" -ne 0 ; then
3589   error_exit "invalid trace backends" \
3590       "Please choose supported trace backends."
3591 fi
3592
3593 ##########################################
3594 # For 'ust' backend, test if ust headers are present
3595 if have_backend "ust"; then
3596   cat > $TMPC << EOF
3597 #include <lttng/tracepoint.h>
3598 int main(void) { return 0; }
3599 EOF
3600   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
3601     if $pkg_config lttng-ust --exists; then
3602       lttng_ust_libs=$($pkg_config --libs lttng-ust)
3603     else
3604       lttng_ust_libs="-llttng-ust -ldl"
3605     fi
3606     if $pkg_config liburcu-bp --exists; then
3607       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
3608     else
3609       urcu_bp_libs="-lurcu-bp"
3610     fi
3611   else
3612     error_exit "Trace backend 'ust' missing lttng-ust header files"
3613   fi
3614 fi
3615
3616 ##########################################
3617 # For 'dtrace' backend, test if 'dtrace' command is present
3618 if have_backend "dtrace"; then
3619   if ! has 'dtrace' ; then
3620     error_exit "dtrace command is not found in PATH $PATH"
3621   fi
3622   trace_backend_stap="no"
3623   if has 'stap' ; then
3624     trace_backend_stap="yes"
3625
3626     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
3627     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
3628     # instead. QEMU --enable-modules depends on this because the SystemTap
3629     # semaphores are linked into the main binary and not the module's shared
3630     # object.
3631     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
3632   fi
3633 fi
3634
3635 ##########################################
3636 # check and set a backend for coroutine
3637
3638 # We prefer ucontext, but it's not always possible. The fallback
3639 # is sigcontext. On Windows the only valid backend is the Windows
3640 # specific one.
3641
3642 ucontext_works=no
3643 if test "$darwin" != "yes"; then
3644   cat > $TMPC << EOF
3645 #include <ucontext.h>
3646 #ifdef __stub_makecontext
3647 #error Ignoring glibc stub makecontext which will always fail
3648 #endif
3649 int main(void) { makecontext(0, 0, 0); return 0; }
3650 EOF
3651   if compile_prog "" "" ; then
3652     ucontext_works=yes
3653   fi
3654 fi
3655
3656 if test "$coroutine" = ""; then
3657   if test "$mingw32" = "yes"; then
3658     coroutine=win32
3659   elif test "$ucontext_works" = "yes"; then
3660     coroutine=ucontext
3661   else
3662     coroutine=sigaltstack
3663   fi
3664 else
3665   case $coroutine in
3666   windows)
3667     if test "$mingw32" != "yes"; then
3668       error_exit "'windows' coroutine backend only valid for Windows"
3669     fi
3670     # Unfortunately the user visible backend name doesn't match the
3671     # coroutine-*.c filename for this case, so we have to adjust it here.
3672     coroutine=win32
3673     ;;
3674   ucontext)
3675     if test "$ucontext_works" != "yes"; then
3676       feature_not_found "ucontext"
3677     fi
3678     ;;
3679   sigaltstack)
3680     if test "$mingw32" = "yes"; then
3681       error_exit "only the 'windows' coroutine backend is valid for Windows"
3682     fi
3683     ;;
3684   *)
3685     error_exit "unknown coroutine backend $coroutine"
3686     ;;
3687   esac
3688 fi
3689
3690 if test "$coroutine_pool" = ""; then
3691   coroutine_pool=yes
3692 fi
3693
3694 if test "$debug_stack_usage" = "yes"; then
3695   if test "$coroutine_pool" = "yes"; then
3696     echo "WARN: disabling coroutine pool for stack usage debugging"
3697     coroutine_pool=no
3698   fi
3699 fi
3700
3701 ##################################################
3702 # SafeStack
3703
3704
3705 if test "$safe_stack" = "yes"; then
3706 cat > $TMPC << EOF
3707 int main(int argc, char *argv[])
3708 {
3709 #if ! __has_feature(safe_stack)
3710 #error SafeStack Disabled
3711 #endif
3712     return 0;
3713 }
3714 EOF
3715   flag="-fsanitize=safe-stack"
3716   # Check that safe-stack is supported and enabled.
3717   if compile_prog "-Werror $flag" "$flag"; then
3718     # Flag needed both at compilation and at linking
3719     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
3720     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
3721   else
3722     error_exit "SafeStack not supported by your compiler"
3723   fi
3724   if test "$coroutine" != "ucontext"; then
3725     error_exit "SafeStack is only supported by the coroutine backend ucontext"
3726   fi
3727 else
3728 cat > $TMPC << EOF
3729 int main(int argc, char *argv[])
3730 {
3731 #if defined(__has_feature)
3732 #if __has_feature(safe_stack)
3733 #error SafeStack Enabled
3734 #endif
3735 #endif
3736     return 0;
3737 }
3738 EOF
3739 if test "$safe_stack" = "no"; then
3740   # Make sure that safe-stack is disabled
3741   if ! compile_prog "-Werror" ""; then
3742     # SafeStack was already enabled, try to explicitly remove the feature
3743     flag="-fno-sanitize=safe-stack"
3744     if ! compile_prog "-Werror $flag" "$flag"; then
3745       error_exit "Configure cannot disable SafeStack"
3746     fi
3747     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
3748     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
3749   fi
3750 else # "$safe_stack" = ""
3751   # Set safe_stack to yes or no based on pre-existing flags
3752   if compile_prog "-Werror" ""; then
3753     safe_stack="no"
3754   else
3755     safe_stack="yes"
3756     if test "$coroutine" != "ucontext"; then
3757       error_exit "SafeStack is only supported by the coroutine backend ucontext"
3758     fi
3759   fi
3760 fi
3761 fi
3762
3763 ########################################
3764 # check if cpuid.h is usable.
3765
3766 cat > $TMPC << EOF
3767 #include <cpuid.h>
3768 int main(void) {
3769     unsigned a, b, c, d;
3770     int max = __get_cpuid_max(0, 0);
3771
3772     if (max >= 1) {
3773         __cpuid(1, a, b, c, d);
3774     }
3775
3776     if (max >= 7) {
3777         __cpuid_count(7, 0, a, b, c, d);
3778     }
3779
3780     return 0;
3781 }
3782 EOF
3783 if compile_prog "" "" ; then
3784     cpuid_h=yes
3785 fi
3786
3787 ##########################################
3788 # avx2 optimization requirement check
3789 #
3790 # There is no point enabling this if cpuid.h is not usable,
3791 # since we won't be able to select the new routines.
3792
3793 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
3794   cat > $TMPC << EOF
3795 #pragma GCC push_options
3796 #pragma GCC target("avx2")
3797 #include <cpuid.h>
3798 #include <immintrin.h>
3799 static int bar(void *a) {
3800     __m256i x = *(__m256i *)a;
3801     return _mm256_testz_si256(x, x);
3802 }
3803 int main(int argc, char *argv[]) { return bar(argv[0]); }
3804 EOF
3805   if compile_object "" ; then
3806     avx2_opt="yes"
3807   else
3808     avx2_opt="no"
3809   fi
3810 fi
3811
3812 ##########################################
3813 # avx512f optimization requirement check
3814 #
3815 # There is no point enabling this if cpuid.h is not usable,
3816 # since we won't be able to select the new routines.
3817 # by default, it is turned off.
3818 # if user explicitly want to enable it, check environment
3819
3820 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
3821   cat > $TMPC << EOF
3822 #pragma GCC push_options
3823 #pragma GCC target("avx512f")
3824 #include <cpuid.h>
3825 #include <immintrin.h>
3826 static int bar(void *a) {
3827     __m512i x = *(__m512i *)a;
3828     return _mm512_test_epi64_mask(x, x);
3829 }
3830 int main(int argc, char *argv[])
3831 {
3832         return bar(argv[0]);
3833 }
3834 EOF
3835   if ! compile_object "" ; then
3836     avx512f_opt="no"
3837   fi
3838 else
3839   avx512f_opt="no"
3840 fi
3841
3842 ########################################
3843 # check if __[u]int128_t is usable.
3844
3845 int128=no
3846 cat > $TMPC << EOF
3847 __int128_t a;
3848 __uint128_t b;
3849 int main (void) {
3850   a = a + b;
3851   b = a * b;
3852   a = a * a;
3853   return 0;
3854 }
3855 EOF
3856 if compile_prog "" "" ; then
3857     int128=yes
3858 fi
3859
3860 #########################################
3861 # See if 128-bit atomic operations are supported.
3862
3863 atomic128=no
3864 if test "$int128" = "yes"; then
3865   cat > $TMPC << EOF
3866 int main(void)
3867 {
3868   unsigned __int128 x = 0, y = 0;
3869   y = __atomic_load(&x, 0);
3870   __atomic_store(&x, y, 0);
3871   __atomic_compare_exchange(&x, &y, x, 0, 0, 0);
3872   return 0;
3873 }
3874 EOF
3875   if compile_prog "" "" ; then
3876     atomic128=yes
3877   fi
3878 fi
3879
3880 cmpxchg128=no
3881 if test "$int128" = yes && test "$atomic128" = no; then
3882   cat > $TMPC << EOF
3883 int main(void)
3884 {
3885   unsigned __int128 x = 0, y = 0;
3886   __sync_val_compare_and_swap_16(&x, y, x);
3887   return 0;
3888 }
3889 EOF
3890   if compile_prog "" "" ; then
3891     cmpxchg128=yes
3892   fi
3893 fi
3894
3895 #########################################
3896 # See if 64-bit atomic operations are supported.
3897 # Note that without __atomic builtins, we can only
3898 # assume atomic loads/stores max at pointer size.
3899
3900 cat > $TMPC << EOF
3901 #include <stdint.h>
3902 int main(void)
3903 {
3904   uint64_t x = 0, y = 0;
3905 #ifdef __ATOMIC_RELAXED
3906   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
3907   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
3908   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
3909   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
3910   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
3911 #else
3912   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
3913   __sync_lock_test_and_set(&x, y);
3914   __sync_val_compare_and_swap(&x, y, 0);
3915   __sync_fetch_and_add(&x, y);
3916 #endif
3917   return 0;
3918 }
3919 EOF
3920 if compile_prog "" "" ; then
3921   atomic64=yes
3922 fi
3923
3924 #########################################
3925 # See if --dynamic-list is supported by the linker
3926 ld_dynamic_list="no"
3927 if test "$static" = "no" ; then
3928     cat > $TMPTXT <<EOF
3929 {
3930   foo;
3931 };
3932 EOF
3933
3934     cat > $TMPC <<EOF
3935 #include <stdio.h>
3936 void foo(void);
3937
3938 void foo(void)
3939 {
3940   printf("foo\n");
3941 }
3942
3943 int main(void)
3944 {
3945   foo();
3946   return 0;
3947 }
3948 EOF
3949
3950     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
3951         ld_dynamic_list="yes"
3952     fi
3953 fi
3954
3955 #########################################
3956 # See if -exported_symbols_list is supported by the linker
3957
3958 ld_exported_symbols_list="no"
3959 if test "$static" = "no" ; then
3960     cat > $TMPTXT <<EOF
3961   _foo
3962 EOF
3963
3964     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
3965         ld_exported_symbols_list="yes"
3966     fi
3967 fi
3968
3969 if  test "$plugins" = "yes" &&
3970     test "$ld_dynamic_list" = "no" &&
3971     test "$ld_exported_symbols_list" = "no" ; then
3972   error_exit \
3973       "Plugin support requires dynamic linking and specifying a set of symbols " \
3974       "that are exported to plugins. Unfortunately your linker doesn't " \
3975       "support the flag (--dynamic-list or -exported_symbols_list) used " \
3976       "for this purpose. You can't build with --static."
3977 fi
3978
3979 ########################################
3980 # check if getauxval is available.
3981
3982 getauxval=no
3983 cat > $TMPC << EOF
3984 #include <sys/auxv.h>
3985 int main(void) {
3986   return getauxval(AT_HWCAP) == 0;
3987 }
3988 EOF
3989 if compile_prog "" "" ; then
3990     getauxval=yes
3991 fi
3992
3993 ########################################
3994 # check if ccache is interfering with
3995 # semantic analysis of macros
3996
3997 unset CCACHE_CPP2
3998 ccache_cpp2=no
3999 cat > $TMPC << EOF
4000 static const int Z = 1;
4001 #define fn() ({ Z; })
4002 #define TAUT(X) ((X) == Z)
4003 #define PAREN(X, Y) (X == Y)
4004 #define ID(X) (X)
4005 int main(int argc, char *argv[])
4006 {
4007     int x = 0, y = 0;
4008     x = ID(x);
4009     x = fn();
4010     fn();
4011     if (PAREN(x, y)) return 0;
4012     if (TAUT(Z)) return 0;
4013     return 0;
4014 }
4015 EOF
4016
4017 if ! compile_object "-Werror"; then
4018     ccache_cpp2=yes
4019 fi
4020
4021 #################################################
4022 # clang does not support glibc + FORTIFY_SOURCE.
4023
4024 if test "$fortify_source" != "no"; then
4025   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
4026     fortify_source="no";
4027   elif test -n "$cxx" && has $cxx &&
4028        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
4029     fortify_source="no";
4030   else
4031     fortify_source="yes"
4032   fi
4033 fi
4034
4035 ##########################################
4036 # check if struct fsxattr is available via linux/fs.h
4037
4038 have_fsxattr=no
4039 cat > $TMPC << EOF
4040 #include <linux/fs.h>
4041 struct fsxattr foo;
4042 int main(void) {
4043   return 0;
4044 }
4045 EOF
4046 if compile_prog "" "" ; then
4047     have_fsxattr=yes
4048 fi
4049
4050 ##########################################
4051 # check for usable membarrier system call
4052 if test "$membarrier" = "yes"; then
4053     have_membarrier=no
4054     if test "$mingw32" = "yes" ; then
4055         have_membarrier=yes
4056     elif test "$linux" = "yes" ; then
4057         cat > $TMPC << EOF
4058     #include <linux/membarrier.h>
4059     #include <sys/syscall.h>
4060     #include <unistd.h>
4061     #include <stdlib.h>
4062     int main(void) {
4063         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
4064         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
4065         exit(0);
4066     }
4067 EOF
4068         if compile_prog "" "" ; then
4069             have_membarrier=yes
4070         fi
4071     fi
4072     if test "$have_membarrier" = "no"; then
4073       feature_not_found "membarrier" "membarrier system call not available"
4074     fi
4075 else
4076     # Do not enable it by default even for Mingw32, because it doesn't
4077     # work on Wine.
4078     membarrier=no
4079 fi
4080
4081 ##########################################
4082 # check for usable AF_VSOCK environment
4083 have_af_vsock=no
4084 cat > $TMPC << EOF
4085 #include <errno.h>
4086 #include <sys/types.h>
4087 #include <sys/socket.h>
4088 #if !defined(AF_VSOCK)
4089 # error missing AF_VSOCK flag
4090 #endif
4091 #include <linux/vm_sockets.h>
4092 int main(void) {
4093     int sock, ret;
4094     struct sockaddr_vm svm;
4095     socklen_t len = sizeof(svm);
4096     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
4097     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
4098     if ((ret == -1) && (errno == ENOTCONN)) {
4099         return 0;
4100     }
4101     return -1;
4102 }
4103 EOF
4104 if compile_prog "" "" ; then
4105     have_af_vsock=yes
4106 fi
4107
4108 ##########################################
4109 # check for usable AF_ALG environment
4110 have_afalg=no
4111 cat > $TMPC << EOF
4112 #include <errno.h>
4113 #include <sys/types.h>
4114 #include <sys/socket.h>
4115 #include <linux/if_alg.h>
4116 int main(void) {
4117     int sock;
4118     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
4119     return sock;
4120 }
4121 EOF
4122 if compile_prog "" "" ; then
4123     have_afalg=yes
4124 fi
4125 if test "$crypto_afalg" = "yes"
4126 then
4127     if test "$have_afalg" != "yes"
4128     then
4129         error_exit "AF_ALG requested but could not be detected"
4130     fi
4131 fi
4132
4133
4134 ##########################################
4135 # checks for sanitizers
4136
4137 have_asan=no
4138 have_ubsan=no
4139 have_asan_iface_h=no
4140 have_asan_iface_fiber=no
4141
4142 if test "$sanitizers" = "yes" ; then
4143   write_c_skeleton
4144   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
4145       have_asan=yes
4146   fi
4147
4148   # we could use a simple skeleton for flags checks, but this also
4149   # detect the static linking issue of ubsan, see also:
4150   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
4151   cat > $TMPC << EOF
4152 #include <stdlib.h>
4153 int main(void) {
4154     void *tmp = malloc(10);
4155     if (tmp != NULL) {
4156         return *(int *)(tmp + 2);
4157     }
4158     return 1;
4159 }
4160 EOF
4161   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
4162       have_ubsan=yes
4163   fi
4164
4165   if check_include "sanitizer/asan_interface.h" ; then
4166       have_asan_iface_h=yes
4167   fi
4168
4169   cat > $TMPC << EOF
4170 #include <sanitizer/asan_interface.h>
4171 int main(void) {
4172   __sanitizer_start_switch_fiber(0, 0, 0);
4173   return 0;
4174 }
4175 EOF
4176   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
4177       have_asan_iface_fiber=yes
4178   fi
4179 fi
4180
4181 ##########################################
4182 # checks for fuzzer
4183 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
4184   write_c_fuzzer_skeleton
4185   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
4186     have_fuzzer=yes
4187   else
4188     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
4189     exit 1
4190   fi
4191 fi
4192
4193 # Thread sanitizer is, for now, much noisier than the other sanitizers;
4194 # keep it separate until that is not the case.
4195 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
4196   error_exit "TSAN is not supported with other sanitiziers."
4197 fi
4198 have_tsan=no
4199 have_tsan_iface_fiber=no
4200 if test "$tsan" = "yes" ; then
4201   write_c_skeleton
4202   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
4203       have_tsan=yes
4204   fi
4205   cat > $TMPC << EOF
4206 #include <sanitizer/tsan_interface.h>
4207 int main(void) {
4208   __tsan_create_fiber(0);
4209   return 0;
4210 }
4211 EOF
4212   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
4213       have_tsan_iface_fiber=yes
4214   fi
4215 fi
4216
4217 ##########################################
4218 # check for slirp
4219
4220 case "$slirp" in
4221   auto | enabled | internal)
4222     # Simpler to always update submodule, even if not needed.
4223     git_submodules="${git_submodules} slirp"
4224     ;;
4225 esac
4226
4227 # Check for slirp smbd dupport
4228 : ${smbd=${SMBD-/usr/sbin/smbd}}
4229 if test "$slirp_smbd" != "no" ; then
4230   if test "$mingw32" = "yes" ; then
4231     if test "$slirp_smbd" = "yes" ; then
4232       error_exit "Host smbd not supported on this platform."
4233     fi
4234     slirp_smbd=no
4235   else
4236     slirp_smbd=yes
4237   fi
4238 fi
4239
4240 ##########################################
4241 # check for usable __NR_keyctl syscall
4242
4243 if test "$linux" = "yes" ; then
4244
4245     have_keyring=no
4246     cat > $TMPC << EOF
4247 #include <errno.h>
4248 #include <asm/unistd.h>
4249 #include <linux/keyctl.h>
4250 #include <unistd.h>
4251 int main(void) {
4252     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
4253 }
4254 EOF
4255     if compile_prog "" "" ; then
4256         have_keyring=yes
4257     fi
4258 fi
4259 if test "$secret_keyring" != "no"
4260 then
4261     if test "$have_keyring" = "yes"
4262     then
4263         secret_keyring=yes
4264     else
4265         if test "$secret_keyring" = "yes"
4266         then
4267             error_exit "syscall __NR_keyctl requested, \
4268 but not implemented on your system"
4269         else
4270             secret_keyring=no
4271         fi
4272     fi
4273 fi
4274
4275 ##########################################
4276 # End of CC checks
4277 # After here, no more $cc or $ld runs
4278
4279 write_c_skeleton
4280
4281 if test "$gcov" = "yes" ; then
4282   :
4283 elif test "$fortify_source" = "yes" ; then
4284   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
4285   debug=no
4286 fi
4287
4288 case "$ARCH" in
4289 alpha)
4290   # Ensure there's only a single GP
4291   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
4292 ;;
4293 esac
4294
4295 if test "$gprof" = "yes" ; then
4296   QEMU_CFLAGS="-p $QEMU_CFLAGS"
4297   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
4298 fi
4299
4300 if test "$have_asan" = "yes"; then
4301   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
4302   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
4303   if test "$have_asan_iface_h" = "no" ; then
4304       echo "ASAN build enabled, but ASAN header missing." \
4305            "Without code annotation, the report may be inferior."
4306   elif test "$have_asan_iface_fiber" = "no" ; then
4307       echo "ASAN build enabled, but ASAN header is too old." \
4308            "Without code annotation, the report may be inferior."
4309   fi
4310 fi
4311 if test "$have_tsan" = "yes" ; then
4312   if test "$have_tsan_iface_fiber" = "yes" ; then
4313     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
4314     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
4315   else
4316     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
4317   fi
4318 elif test "$tsan" = "yes" ; then
4319   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
4320 fi
4321 if test "$have_ubsan" = "yes"; then
4322   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
4323   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
4324 fi
4325
4326 ##########################################
4327
4328 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
4329 if test "$solaris" = "no" && test "$tsan" = "no"; then
4330     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
4331         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
4332     fi
4333 fi
4334
4335 # Use ASLR, no-SEH and DEP if available
4336 if test "$mingw32" = "yes" ; then
4337     flags="--no-seh --nxcompat"
4338
4339     # Disable ASLR for debug builds to allow debugging with gdb
4340     if test "$debug" = "no" ; then
4341         flags="--dynamicbase $flags"
4342     fi
4343
4344     for flag in $flags; do
4345         if ld_has $flag ; then
4346             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
4347         fi
4348     done
4349 fi
4350
4351 # Probe for guest agent support/options
4352
4353 if [ "$guest_agent" != "no" ]; then
4354   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
4355       guest_agent=no
4356   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
4357       guest_agent=yes
4358   elif [ "$guest_agent" != yes ]; then
4359       guest_agent=no
4360   else
4361       error_exit "Guest agent is not supported on this platform"
4362   fi
4363 fi
4364
4365 # Guest agent Windows MSI package
4366
4367 if test "$QEMU_GA_MANUFACTURER" = ""; then
4368   QEMU_GA_MANUFACTURER=QEMU
4369 fi
4370 if test "$QEMU_GA_DISTRO" = ""; then
4371   QEMU_GA_DISTRO=Linux
4372 fi
4373 if test "$QEMU_GA_VERSION" = ""; then
4374     QEMU_GA_VERSION=$(cat $source_path/VERSION)
4375 fi
4376
4377 QEMU_GA_MSI_MINGW_DLL_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
4378
4379 # Mac OS X ships with a broken assembler
4380 roms=
4381 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
4382         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
4383         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
4384     # Different host OS linkers have different ideas about the name of the ELF
4385     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
4386     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
4387     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
4388         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
4389             ld_i386_emulation="$emu"
4390             roms="optionrom"
4391             break
4392         fi
4393     done
4394 fi
4395
4396 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
4397 # or -march=z10 (which is the lowest architecture level that Clang supports)
4398 if test "$cpu" = "s390x" ; then
4399   write_c_skeleton
4400   compile_prog "-march=z900" ""
4401   has_z900=$?
4402   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
4403     if [ $has_z900 != 0 ]; then
4404       echo "WARNING: Your compiler does not support the z900!"
4405       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
4406     fi
4407     roms="$roms s390-ccw"
4408     # SLOF is required for building the s390-ccw firmware on s390x,
4409     # since it is using the libnet code from SLOF for network booting.
4410     git_submodules="${git_submodules} roms/SLOF"
4411   fi
4412 fi
4413
4414 # Check that the C++ compiler exists and works with the C compiler.
4415 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
4416 if has $cxx; then
4417     cat > $TMPC <<EOF
4418 int c_function(void);
4419 int main(void) { return c_function(); }
4420 EOF
4421
4422     compile_object
4423
4424     cat > $TMPCXX <<EOF
4425 extern "C" {
4426    int c_function(void);
4427 }
4428 int c_function(void) { return 42; }
4429 EOF
4430
4431     update_cxxflags
4432
4433     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
4434         # C++ compiler $cxx works ok with C compiler $cc
4435         :
4436     else
4437         echo "C++ compiler $cxx does not work with C compiler $cc"
4438         echo "Disabling C++ specific optional code"
4439         cxx=
4440     fi
4441 else
4442     echo "No C++ compiler available; disabling C++ specific optional code"
4443     cxx=
4444 fi
4445
4446 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
4447     exit 1
4448 fi
4449
4450 config_host_mak="config-host.mak"
4451
4452 echo "# Automatically generated by configure - do not modify" > $config_host_mak
4453 echo >> $config_host_mak
4454
4455 echo all: >> $config_host_mak
4456 echo "GIT=$git" >> $config_host_mak
4457 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
4458 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
4459
4460 echo "ARCH=$ARCH" >> $config_host_mak
4461
4462 if test "$debug_tcg" = "yes" ; then
4463   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
4464 fi
4465 if test "$strip_opt" = "yes" ; then
4466   echo "STRIP=${strip}" >> $config_host_mak
4467 fi
4468 if test "$bigendian" = "yes" ; then
4469   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
4470 fi
4471 if test "$mingw32" = "yes" ; then
4472   echo "CONFIG_WIN32=y" >> $config_host_mak
4473   if test "$guest_agent_with_vss" = "yes" ; then
4474     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
4475     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
4476     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
4477   fi
4478   if test "$guest_agent_ntddscsi" = "yes" ; then
4479     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
4480   fi
4481   echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
4482   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
4483   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
4484   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
4485 else
4486   echo "CONFIG_POSIX=y" >> $config_host_mak
4487 fi
4488
4489 if test "$linux" = "yes" ; then
4490   echo "CONFIG_LINUX=y" >> $config_host_mak
4491 fi
4492
4493 if test "$darwin" = "yes" ; then
4494   echo "CONFIG_DARWIN=y" >> $config_host_mak
4495 fi
4496
4497 if test "$solaris" = "yes" ; then
4498   echo "CONFIG_SOLARIS=y" >> $config_host_mak
4499 fi
4500 if test "$haiku" = "yes" ; then
4501   echo "CONFIG_HAIKU=y" >> $config_host_mak
4502 fi
4503 if test "$static" = "yes" ; then
4504   echo "CONFIG_STATIC=y" >> $config_host_mak
4505 fi
4506 if test "$profiler" = "yes" ; then
4507   echo "CONFIG_PROFILER=y" >> $config_host_mak
4508 fi
4509 if test "$want_tools" = "yes" ; then
4510   echo "CONFIG_TOOLS=y" >> $config_host_mak
4511 fi
4512 if test "$guest_agent" = "yes" ; then
4513   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
4514 fi
4515 if test "$slirp_smbd" = "yes" ; then
4516   echo "CONFIG_SLIRP_SMBD=y" >> $config_host_mak
4517   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
4518 fi
4519 if test "$vde" = "yes" ; then
4520   echo "CONFIG_VDE=y" >> $config_host_mak
4521   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
4522 fi
4523 if test "$netmap" = "yes" ; then
4524   echo "CONFIG_NETMAP=y" >> $config_host_mak
4525 fi
4526 if test "$l2tpv3" = "yes" ; then
4527   echo "CONFIG_L2TPV3=y" >> $config_host_mak
4528 fi
4529 if test "$gprof" = "yes" ; then
4530   echo "CONFIG_GPROF=y" >> $config_host_mak
4531 fi
4532 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
4533 for drv in $audio_drv_list; do
4534     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
4535     echo "$def=y" >> $config_host_mak
4536 done
4537 if test "$alsa" = "yes" ; then
4538     echo "CONFIG_ALSA=y" >> $config_host_mak
4539 fi
4540 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
4541 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
4542 if test "$libpulse" = "yes" ; then
4543     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
4544 fi
4545 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
4546 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
4547 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
4548 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
4549 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
4550 if test "$libjack" = "yes" ; then
4551     echo "CONFIG_LIBJACK=y" >> $config_host_mak
4552 fi
4553 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
4554 if test "$audio_win_int" = "yes" ; then
4555   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
4556 fi
4557 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
4558 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
4559 if test "$xfs" = "yes" ; then
4560   echo "CONFIG_XFS=y" >> $config_host_mak
4561 fi
4562 qemu_version=$(head $source_path/VERSION)
4563 echo "PKGVERSION=$pkgversion" >>$config_host_mak
4564 echo "SRC_PATH=$source_path" >> $config_host_mak
4565 echo "TARGET_DIRS=$target_list" >> $config_host_mak
4566 if test "$modules" = "yes"; then
4567   # $shacmd can generate a hash started with digit, which the compiler doesn't
4568   # like as an symbol. So prefix it with an underscore
4569   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
4570   echo "CONFIG_MODULES=y" >> $config_host_mak
4571 fi
4572 if test "$module_upgrades" = "yes"; then
4573   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
4574 fi
4575 if test "$have_usbfs" = "yes" ; then
4576   echo "CONFIG_USBFS=y" >> $config_host_mak
4577 fi
4578 if test "$gio" = "yes" ; then
4579     echo "CONFIG_GIO=y" >> $config_host_mak
4580     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
4581     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
4582 fi
4583 if test "$gdbus_codegen" != "" ; then
4584     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
4585 fi
4586 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
4587
4588 # Work around a system header bug with some kernel/XFS header
4589 # versions where they both try to define 'struct fsxattr':
4590 # xfs headers will not try to redefine structs from linux headers
4591 # if this macro is set.
4592 if test "$have_fsxattr" = "yes" ; then
4593     echo "HAVE_FSXATTR=y" >> $config_host_mak
4594 fi
4595 if test "$xen" = "enabled" ; then
4596   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
4597   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
4598   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
4599   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
4600 fi
4601 if test "$linux_aio" = "yes" ; then
4602   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
4603 fi
4604 if test "$vhost_scsi" = "yes" ; then
4605   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
4606 fi
4607 if test "$vhost_net" = "yes" ; then
4608   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
4609 fi
4610 if test "$vhost_net_user" = "yes" ; then
4611   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
4612 fi
4613 if test "$vhost_net_vdpa" = "yes" ; then
4614   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
4615 fi
4616 if test "$vhost_crypto" = "yes" ; then
4617   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
4618 fi
4619 if test "$vhost_vsock" = "yes" ; then
4620   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
4621   if test "$vhost_user" = "yes" ; then
4622     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
4623   fi
4624 fi
4625 if test "$vhost_kernel" = "yes" ; then
4626   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
4627 fi
4628 if test "$vhost_user" = "yes" ; then
4629   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
4630 fi
4631 if test "$vhost_vdpa" = "yes" ; then
4632   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
4633 fi
4634 if test "$vhost_user_fs" = "yes" ; then
4635   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
4636 fi
4637 if test "$iovec" = "yes" ; then
4638   echo "CONFIG_IOVEC=y" >> $config_host_mak
4639 fi
4640 if test "$membarrier" = "yes" ; then
4641   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
4642 fi
4643 if test "$tcg" = "enabled" -a "$tcg_interpreter" = "true" ; then
4644   echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
4645 fi
4646
4647 if test "$spice_protocol" = "yes" ; then
4648   echo "CONFIG_SPICE_PROTOCOL=y" >> $config_host_mak
4649   echo "SPICE_PROTOCOL_CFLAGS=$spice_protocol_cflags" >> $config_host_mak
4650 fi
4651 if test "$spice" = "yes" ; then
4652   echo "CONFIG_SPICE=y" >> $config_host_mak
4653   echo "SPICE_CFLAGS=$spice_cflags $spice_protocol_cflags" >> $config_host_mak
4654   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
4655 fi
4656
4657 if test "$opengl" = "yes" ; then
4658   echo "CONFIG_OPENGL=y" >> $config_host_mak
4659   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
4660   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
4661 fi
4662
4663 if test "$gbm" = "yes" ; then
4664     echo "CONFIG_GBM=y" >> $config_host_mak
4665     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
4666     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
4667 fi
4668
4669
4670 if test "$avx2_opt" = "yes" ; then
4671   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
4672 fi
4673
4674 if test "$avx512f_opt" = "yes" ; then
4675   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
4676 fi
4677
4678 # XXX: suppress that
4679 if [ "$bsd" = "yes" ] ; then
4680   echo "CONFIG_BSD=y" >> $config_host_mak
4681 fi
4682
4683 if test "$qom_cast_debug" = "yes" ; then
4684   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
4685 fi
4686
4687 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
4688 if test "$coroutine_pool" = "yes" ; then
4689   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
4690 else
4691   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
4692 fi
4693
4694 if test "$debug_stack_usage" = "yes" ; then
4695   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
4696 fi
4697
4698 if test "$crypto_afalg" = "yes" ; then
4699   echo "CONFIG_AF_ALG=y" >> $config_host_mak
4700 fi
4701
4702 if test "$have_asan_iface_fiber" = "yes" ; then
4703     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
4704 fi
4705
4706 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
4707     echo "CONFIG_TSAN=y" >> $config_host_mak
4708 fi
4709
4710 if test "$cpuid_h" = "yes" ; then
4711   echo "CONFIG_CPUID_H=y" >> $config_host_mak
4712 fi
4713
4714 if test "$int128" = "yes" ; then
4715   echo "CONFIG_INT128=y" >> $config_host_mak
4716 fi
4717
4718 if test "$atomic128" = "yes" ; then
4719   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
4720 fi
4721
4722 if test "$cmpxchg128" = "yes" ; then
4723   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
4724 fi
4725
4726 if test "$atomic64" = "yes" ; then
4727   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
4728 fi
4729
4730 if test "$getauxval" = "yes" ; then
4731   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
4732 fi
4733
4734 if test "$libssh" = "yes" ; then
4735   echo "CONFIG_LIBSSH=y" >> $config_host_mak
4736   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
4737   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
4738 fi
4739
4740 if test "$live_block_migration" = "yes" ; then
4741   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
4742 fi
4743
4744 if test "$tpm" = "yes"; then
4745   echo 'CONFIG_TPM=y' >> $config_host_mak
4746 fi
4747
4748 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
4749 if have_backend "nop"; then
4750   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
4751 fi
4752 if have_backend "simple"; then
4753   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
4754   # Set the appropriate trace file.
4755   trace_file="\"$trace_file-\" FMT_pid"
4756 fi
4757 if have_backend "log"; then
4758   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
4759 fi
4760 if have_backend "ust"; then
4761   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
4762   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
4763   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
4764 fi
4765 if have_backend "dtrace"; then
4766   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
4767   if test "$trace_backend_stap" = "yes" ; then
4768     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
4769   fi
4770 fi
4771 if have_backend "ftrace"; then
4772   if test "$linux" = "yes" ; then
4773     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
4774   else
4775     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
4776   fi
4777 fi
4778 if have_backend "syslog"; then
4779   if test "$posix_syslog" = "yes" ; then
4780     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
4781   else
4782     feature_not_found "syslog(trace backend)" "syslog not available"
4783   fi
4784 fi
4785 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
4786
4787 if test "$rdma" = "yes" ; then
4788   echo "CONFIG_RDMA=y" >> $config_host_mak
4789   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
4790 fi
4791
4792 if test "$pvrdma" = "yes" ; then
4793   echo "CONFIG_PVRDMA=y" >> $config_host_mak
4794 fi
4795
4796 if test "$replication" = "yes" ; then
4797   echo "CONFIG_REPLICATION=y" >> $config_host_mak
4798 fi
4799
4800 if test "$have_af_vsock" = "yes" ; then
4801   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
4802 fi
4803
4804 if test "$debug_mutex" = "yes" ; then
4805   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
4806 fi
4807
4808 # Hold two types of flag:
4809 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
4810 #                                     a thread we have a handle to
4811 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
4812 #                                     platform
4813 if test "$pthread_setname_np_w_tid" = "yes" ; then
4814   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
4815   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
4816 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
4817   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
4818   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
4819 fi
4820
4821 if test "$libpmem" = "yes" ; then
4822   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
4823   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
4824   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
4825 fi
4826
4827 if test "$bochs" = "yes" ; then
4828   echo "CONFIG_BOCHS=y" >> $config_host_mak
4829 fi
4830 if test "$cloop" = "yes" ; then
4831   echo "CONFIG_CLOOP=y" >> $config_host_mak
4832 fi
4833 if test "$dmg" = "yes" ; then
4834   echo "CONFIG_DMG=y" >> $config_host_mak
4835 fi
4836 if test "$qcow1" = "yes" ; then
4837   echo "CONFIG_QCOW1=y" >> $config_host_mak
4838 fi
4839 if test "$vdi" = "yes" ; then
4840   echo "CONFIG_VDI=y" >> $config_host_mak
4841 fi
4842 if test "$vvfat" = "yes" ; then
4843   echo "CONFIG_VVFAT=y" >> $config_host_mak
4844 fi
4845 if test "$qed" = "yes" ; then
4846   echo "CONFIG_QED=y" >> $config_host_mak
4847 fi
4848 if test "$parallels" = "yes" ; then
4849   echo "CONFIG_PARALLELS=y" >> $config_host_mak
4850 fi
4851 if test "$have_mlockall" = "yes" ; then
4852   echo "HAVE_MLOCKALL=y" >> $config_host_mak
4853 fi
4854 if test "$fuzzing" = "yes" ; then
4855   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
4856   # needed CFLAGS have already been provided
4857   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
4858     # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
4859     # compiled code.
4860     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
4861     # To build non-fuzzer binaries with --enable-fuzzing, link everything with
4862     # fsanitize=fuzzer-no-link. Otherwise, the linker will be unable to bind
4863     # the fuzzer-related callbacks added by instrumentation.
4864     QEMU_LDFLAGS="$QEMU_LDFLAGS -fsanitize=fuzzer-no-link"
4865     # For the actual fuzzer binaries, we need to link against the libfuzzer
4866     # library. Provide the flags for doing this in FUZZ_EXE_LDFLAGS. The meson
4867     # rule for the fuzzer adds these to the link_args. They need to be
4868     # configurable, to support OSS-Fuzz
4869     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
4870   else
4871     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
4872   fi
4873 fi
4874
4875 if test "$plugins" = "yes" ; then
4876     echo "CONFIG_PLUGIN=y" >> $config_host_mak
4877     # Copy the export object list to the build dir
4878     if test "$ld_dynamic_list" = "yes" ; then
4879         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
4880         ld_symbols=qemu-plugins-ld.symbols
4881         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
4882     elif test "$ld_exported_symbols_list" = "yes" ; then
4883         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
4884         ld64_symbols=qemu-plugins-ld64.symbols
4885         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
4886         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
4887             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
4888     else
4889         error_exit \
4890             "If \$plugins=yes, either \$ld_dynamic_list or " \
4891             "\$ld_exported_symbols_list should have been set to 'yes'."
4892     fi
4893 fi
4894
4895 if test -n "$gdb_bin"; then
4896     gdb_version=$($gdb_bin --version | head -n 1)
4897     if version_ge ${gdb_version##* } 9.1; then
4898         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
4899     fi
4900 fi
4901
4902 if test "$secret_keyring" = "yes" ; then
4903   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
4904 fi
4905
4906 echo "ROMS=$roms" >> $config_host_mak
4907 echo "MAKE=$make" >> $config_host_mak
4908 echo "PYTHON=$python" >> $config_host_mak
4909 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
4910 echo "MESON=$meson" >> $config_host_mak
4911 echo "NINJA=$ninja" >> $config_host_mak
4912 echo "CC=$cc" >> $config_host_mak
4913 echo "HOST_CC=$host_cc" >> $config_host_mak
4914 if $iasl -h > /dev/null 2>&1; then
4915   echo "CONFIG_IASL=$iasl" >> $config_host_mak
4916 fi
4917 echo "AR=$ar" >> $config_host_mak
4918 echo "AS=$as" >> $config_host_mak
4919 echo "CCAS=$ccas" >> $config_host_mak
4920 echo "CPP=$cpp" >> $config_host_mak
4921 echo "OBJCOPY=$objcopy" >> $config_host_mak
4922 echo "LD=$ld" >> $config_host_mak
4923 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
4924 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
4925 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
4926 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
4927 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
4928 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
4929 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
4930 echo "EXESUF=$EXESUF" >> $config_host_mak
4931 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
4932 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
4933 if test "$gcov" = "yes" ; then
4934   echo "CONFIG_GCOV=y" >> $config_host_mak
4935 fi
4936
4937 if test "$fuzzing" != "no"; then
4938     echo "CONFIG_FUZZ=y" >> $config_host_mak
4939 fi
4940 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
4941
4942 if test "$rng_none" = "yes"; then
4943   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
4944 fi
4945
4946 # use included Linux headers
4947 if test "$linux" = "yes" ; then
4948   mkdir -p linux-headers
4949   case "$cpu" in
4950   i386|x86_64|x32)
4951     linux_arch=x86
4952     ;;
4953   ppc|ppc64|ppc64le)
4954     linux_arch=powerpc
4955     ;;
4956   s390x)
4957     linux_arch=s390
4958     ;;
4959   aarch64)
4960     linux_arch=arm64
4961     ;;
4962   mips64)
4963     linux_arch=mips
4964     ;;
4965   *)
4966     # For most CPUs the kernel architecture name and QEMU CPU name match.
4967     linux_arch="$cpu"
4968     ;;
4969   esac
4970     # For non-KVM architectures we will not have asm headers
4971     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
4972       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
4973     fi
4974 fi
4975
4976 for target in $target_list; do
4977     target_dir="$target"
4978     target_name=$(echo $target | cut -d '-' -f 1)
4979     mkdir -p $target_dir
4980     case $target in
4981         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
4982         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
4983     esac
4984 done
4985
4986 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
4987 if test "$default_targets" = "yes"; then
4988   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
4989 fi
4990
4991 if test "$numa" = "yes"; then
4992   echo "CONFIG_NUMA=y" >> $config_host_mak
4993   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
4994 fi
4995
4996 if test "$ccache_cpp2" = "yes"; then
4997   echo "export CCACHE_CPP2=y" >> $config_host_mak
4998 fi
4999
5000 if test "$safe_stack" = "yes"; then
5001   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
5002 fi
5003
5004 # If we're using a separate build tree, set it up now.
5005 # DIRS are directories which we simply mkdir in the build tree;
5006 # LINKS are things to symlink back into the source tree
5007 # (these can be both files and directories).
5008 # Caution: do not add files or directories here using wildcards. This
5009 # will result in problems later if a new file matching the wildcard is
5010 # added to the source tree -- nothing will cause configure to be rerun
5011 # so the build tree will be missing the link back to the new file, and
5012 # tests might fail. Prefer to keep the relevant files in their own
5013 # directory and symlink the directory instead.
5014 # UNLINK is used to remove symlinks from older development versions
5015 # that might get into the way when doing "git update" without doing
5016 # a "make distclean" in between.
5017 DIRS="tests tests/tcg tests/qapi-schema tests/qtest/libqos"
5018 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
5019 DIRS="$DIRS docs docs/interop fsdev scsi"
5020 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
5021 DIRS="$DIRS roms/seabios"
5022 DIRS="$DIRS contrib/plugins/"
5023 LINKS="Makefile"
5024 LINKS="$LINKS tests/tcg/Makefile.target"
5025 LINKS="$LINKS pc-bios/optionrom/Makefile"
5026 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
5027 LINKS="$LINKS roms/seabios/Makefile"
5028 LINKS="$LINKS pc-bios/qemu-icon.bmp"
5029 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
5030 LINKS="$LINKS tests/acceptance tests/data"
5031 LINKS="$LINKS tests/qemu-iotests/check"
5032 LINKS="$LINKS python"
5033 LINKS="$LINKS contrib/plugins/Makefile "
5034 UNLINK="pc-bios/keymaps"
5035 for bios_file in \
5036     $source_path/pc-bios/*.bin \
5037     $source_path/pc-bios/*.elf \
5038     $source_path/pc-bios/*.lid \
5039     $source_path/pc-bios/*.rom \
5040     $source_path/pc-bios/*.dtb \
5041     $source_path/pc-bios/*.img \
5042     $source_path/pc-bios/openbios-* \
5043     $source_path/pc-bios/u-boot.* \
5044     $source_path/pc-bios/edk2-*.fd.bz2 \
5045     $source_path/pc-bios/palcode-*
5046 do
5047     LINKS="$LINKS pc-bios/$(basename $bios_file)"
5048 done
5049 mkdir -p $DIRS
5050 for f in $LINKS ; do
5051     if [ -e "$source_path/$f" ]; then
5052         symlink "$source_path/$f" "$f"
5053     fi
5054 done
5055 for f in $UNLINK ; do
5056     if [ -L "$f" ]; then
5057         rm -f "$f"
5058     fi
5059 done
5060
5061 (for i in $cross_cc_vars; do
5062   export $i
5063 done
5064 export target_list source_path use_containers ARCH
5065 $source_path/tests/tcg/configure.sh)
5066
5067 # temporary config to build submodules
5068 for rom in seabios; do
5069     config_mak=roms/$rom/config.mak
5070     echo "# Automatically generated by configure - do not modify" > $config_mak
5071     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
5072     echo "AS=$as" >> $config_mak
5073     echo "CCAS=$ccas" >> $config_mak
5074     echo "CC=$cc" >> $config_mak
5075     echo "BCC=bcc" >> $config_mak
5076     echo "CPP=$cpp" >> $config_mak
5077     echo "OBJCOPY=objcopy" >> $config_mak
5078     echo "IASL=$iasl" >> $config_mak
5079     echo "LD=$ld" >> $config_mak
5080     echo "RANLIB=$ranlib" >> $config_mak
5081 done
5082
5083 if test "$skip_meson" = no; then
5084   cross="config-meson.cross.new"
5085   meson_quote() {
5086     echo "'$(echo $* | sed "s/ /','/g")'"
5087   }
5088
5089   echo "# Automatically generated by configure - do not modify" > $cross
5090   echo "[properties]" >> $cross
5091   test -z "$cxx" && echo "link_language = 'c'" >> $cross
5092   echo "[built-in options]" >> $cross
5093   echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
5094   echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
5095   echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
5096   echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
5097   echo "[binaries]" >> $cross
5098   echo "c = [$(meson_quote $cc)]" >> $cross
5099   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
5100   test -n "$objcc" && echo "objc = [$(meson_quote $objcc)]" >> $cross
5101   echo "ar = [$(meson_quote $ar)]" >> $cross
5102   echo "nm = [$(meson_quote $nm)]" >> $cross
5103   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
5104   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
5105   if has $sdl2_config; then
5106     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
5107   fi
5108   echo "strip = [$(meson_quote $strip)]" >> $cross
5109   echo "windres = [$(meson_quote $windres)]" >> $cross
5110   if test "$cross_compile" = "yes"; then
5111     cross_arg="--cross-file config-meson.cross"
5112     echo "[host_machine]" >> $cross
5113     if test "$mingw32" = "yes" ; then
5114         echo "system = 'windows'" >> $cross
5115     fi
5116     if test "$linux" = "yes" ; then
5117         echo "system = 'linux'" >> $cross
5118     fi
5119     if test "$darwin" = "yes" ; then
5120         echo "system = 'darwin'" >> $cross
5121     fi
5122     case "$ARCH" in
5123         i386)
5124             echo "cpu_family = 'x86'" >> $cross
5125             ;;
5126         x86_64|x32)
5127             echo "cpu_family = 'x86_64'" >> $cross
5128             ;;
5129         ppc64le)
5130             echo "cpu_family = 'ppc64'" >> $cross
5131             ;;
5132         *)
5133             echo "cpu_family = '$ARCH'" >> $cross
5134             ;;
5135     esac
5136     echo "cpu = '$cpu'" >> $cross
5137     if test "$bigendian" = "yes" ; then
5138         echo "endian = 'big'" >> $cross
5139     else
5140         echo "endian = 'little'" >> $cross
5141     fi
5142   else
5143     cross_arg="--native-file config-meson.cross"
5144   fi
5145   mv $cross config-meson.cross
5146
5147   rm -rf meson-private meson-info meson-logs
5148   unset staticpic
5149   if ! version_ge "$($meson --version)" 0.56.0; then
5150     staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
5151   fi
5152   NINJA=$ninja $meson setup \
5153         --prefix "$prefix" \
5154         --libdir "$libdir" \
5155         --libexecdir "$libexecdir" \
5156         --bindir "$bindir" \
5157         --includedir "$includedir" \
5158         --datadir "$datadir" \
5159         --mandir "$mandir" \
5160         --sysconfdir "$sysconfdir" \
5161         --localedir "$localedir" \
5162         --localstatedir "$local_statedir" \
5163         -Ddocdir="$docdir" \
5164         -Dqemu_firmwarepath="$firmwarepath" \
5165         -Dqemu_suffix="$qemu_suffix" \
5166         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
5167         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
5168         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
5169         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
5170         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
5171         ${staticpic:+-Db_staticpic=$staticpic} \
5172         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
5173         -Db_lto=$lto -Dcfi=$cfi -Dcfi_debug=$cfi_debug \
5174         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
5175         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf -Dnvmm=$nvmm \
5176         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
5177         -Dcocoa=$cocoa -Dgtk=$gtk -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
5178         -Dlibusb=$libusb -Dsmartcard=$smartcard -Dusb_redir=$usb_redir -Dvte=$vte \
5179         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
5180         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
5181         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt -Dbrlapi=$brlapi \
5182         -Dcurl=$curl -Dglusterfs=$glusterfs -Dbzip2=$bzip2 -Dlibiscsi=$libiscsi \
5183         -Dlibnfs=$libnfs -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
5184         -Drbd=$rbd -Dlzo=$lzo -Dsnappy=$snappy -Dlzfse=$lzfse -Dlibxml2=$libxml2 \
5185         -Dlibdaxctl=$libdaxctl -Dlibpmem=$libpmem -Dlinux_io_uring=$linux_io_uring \
5186         -Dgnutls=$gnutls -Dnettle=$nettle -Dgcrypt=$gcrypt -Dauth_pam=$auth_pam \
5187         -Dzstd=$zstd -Dseccomp=$seccomp -Dvirtfs=$virtfs -Dcap_ng=$cap_ng \
5188         -Dattr=$attr -Ddefault_devices=$default_devices -Dvirglrenderer=$virglrenderer \
5189         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
5190         -Dvhost_user_blk_server=$vhost_user_blk_server -Dmultiprocess=$multiprocess \
5191         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek -Dguest_agent_msi=$guest_agent_msi -Dbpf=$bpf\
5192         $(if test "$default_features" = no; then echo "-Dauto_features=disabled"; fi) \
5193         -Dtcg_interpreter=$tcg_interpreter \
5194         $cross_arg \
5195         "$PWD" "$source_path"
5196
5197   if test "$?" -ne 0 ; then
5198       error_exit "meson setup failed"
5199   fi
5200 else
5201   if test -f meson-private/cmd_line.txt; then
5202     # Adjust old command line options whose type was changed
5203     # Avoids having to use "setup --wipe" when Meson is upgraded
5204     perl -i -ne '
5205       s/^gettext = true$/gettext = auto/;
5206       s/^gettext = false$/gettext = disabled/;
5207       print;' meson-private/cmd_line.txt
5208   fi
5209 fi
5210
5211 if test -n "${deprecated_features}"; then
5212     echo "Warning, deprecated features enabled."
5213     echo "Please see docs/system/deprecated.rst"
5214     echo "  features: ${deprecated_features}"
5215 fi
5216
5217 # Create list of config switches that should be poisoned in common code...
5218 # but filter out CONFIG_TCG and CONFIG_USER_ONLY which are special.
5219 target_configs_h=$(ls *-config-devices.h *-config-target.h 2>/dev/null)
5220 if test -n "$target_configs_h" ; then
5221     sed -n -e '/CONFIG_TCG/d' -e '/CONFIG_USER_ONLY/d' \
5222         -e '/^#define / { s///; s/ .*//; s/^/#pragma GCC poison /p; }' \
5223         $target_configs_h | sort -u > config-poison.h
5224 else
5225     :> config-poison.h
5226 fi
5227
5228 # Save the configure command line for later reuse.
5229 cat <<EOD >config.status
5230 #!/bin/sh
5231 # Generated by configure.
5232 # Run this file to recreate the current configuration.
5233 # Compiler output produced by configure, useful for debugging
5234 # configure, is in config.log if it exists.
5235 EOD
5236
5237 preserve_env() {
5238     envname=$1
5239
5240     eval envval=\$$envname
5241
5242     if test -n "$envval"
5243     then
5244         echo "$envname='$envval'" >> config.status
5245         echo "export $envname" >> config.status
5246     else
5247         echo "unset $envname" >> config.status
5248     fi
5249 }
5250
5251 # Preserve various env variables that influence what
5252 # features/build target configure will detect
5253 preserve_env AR
5254 preserve_env AS
5255 preserve_env CC
5256 preserve_env CPP
5257 preserve_env CXX
5258 preserve_env INSTALL
5259 preserve_env LD
5260 preserve_env LD_LIBRARY_PATH
5261 preserve_env LIBTOOL
5262 preserve_env MAKE
5263 preserve_env NM
5264 preserve_env OBJCOPY
5265 preserve_env PATH
5266 preserve_env PKG_CONFIG
5267 preserve_env PKG_CONFIG_LIBDIR
5268 preserve_env PKG_CONFIG_PATH
5269 preserve_env PYTHON
5270 preserve_env SDL2_CONFIG
5271 preserve_env SMBD
5272 preserve_env STRIP
5273 preserve_env WINDRES
5274
5275 printf "exec" >>config.status
5276 for i in "$0" "$@"; do
5277   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
5278 done
5279 echo ' "$@"' >>config.status
5280 chmod +x config.status
5281
5282 rm -r "$TMPDIR1"