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 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 525 ARFLAGS="${ARFLAGS-rv}"
 526
 527 # default flags for all hosts
 528 # We use -fwrapv to tell the compiler that we require a C dialect where
 529 # left shift of signed integers is well defined and has the expected
 530 # 2s-complement style results. (Both clang and gcc agree that it
 531 # provides these semantics.)
 532 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 533 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 534 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 535 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 536
 537 # Flags that are needed during configure but later taken care of by Meson
 538 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 539 CONFIGURE_LDFLAGS=
 540
 541
 542 check_define() {
 543 cat > $TMPC <<EOF
 544 #if !defined($1)
 545 #error $1 not defined
 546 #endif
 547 int main(void) { return 0; }
 548 EOF
 549   compile_object
 550 }
 551
 552 check_include() {
 553 cat > $TMPC <<EOF
 554 #include <$1>
 555 int main(void) { return 0; }
 556 EOF
 557   compile_object
 558 }
 559
 560 write_c_skeleton() {
 561     cat > $TMPC <<EOF
 562 int main(void) { return 0; }
 563 EOF
 564 }
 565
 566 write_c_fuzzer_skeleton() {
 567     cat > $TMPC <<EOF
 568 #include <stdint.h>
 569 #include <sys/types.h>
 570 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 571 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 572 EOF
 573 }
 574
 575 if check_define __linux__ ; then
 576   targetos="Linux"
 577 elif check_define _WIN32 ; then
 578   targetos='MINGW32'
 579 elif check_define __OpenBSD__ ; then
 580   targetos='OpenBSD'
 581 elif check_define __sun__ ; then
 582   targetos='SunOS'
 583 elif check_define __HAIKU__ ; then
 584   targetos='Haiku'
 585 elif check_define __FreeBSD__ ; then
 586   targetos='FreeBSD'
 587 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 588   targetos='GNU/kFreeBSD'
 589 elif check_define __DragonFly__ ; then
 590   targetos='DragonFly'
 591 elif check_define __NetBSD__; then
 592   targetos='NetBSD'
 593 elif check_define __APPLE__; then
 594   targetos='Darwin'
 595 else
 596   # This is a fatal error, but don't report it yet, because we
 597   # might be going to just print the --help text, or it might
 598   # be the result of a missing compiler.
 599   targetos='bogus'
 600 fi
 601
 602 # Some host OSes need non-standard checks for which CPU to use.
 603 # Note that these checks are broken for cross-compilation: if you're
 604 # cross-compiling to one of these OSes then you'll need to specify
 605 # the correct CPU with the --cpu option.
 606 case $targetos in
 607 Darwin)
 608   HOST_DSOSUF=".dylib"
 609   ;;
 610 SunOS)
 611   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 612   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 613     cpu="x86_64"
 614   fi
 615 esac
 616
 617 if test ! -z "$cpu" ; then
 618   # command line argument
 619   :
 620 elif check_define __i386__ ; then
 621   cpu="i386"
 622 elif check_define __x86_64__ ; then
 623   if check_define __ILP32__ ; then
 624     cpu="x32"
 625   else
 626     cpu="x86_64"
 627   fi
 628 elif check_define __sparc__ ; then
 629   if check_define __arch64__ ; then
 630     cpu="sparc64"
 631   else
 632     cpu="sparc"
 633   fi
 634 elif check_define _ARCH_PPC ; then
 635   if check_define _ARCH_PPC64 ; then
 636     if check_define _LITTLE_ENDIAN ; then
 637       cpu="ppc64le"
 638     else
 639       cpu="ppc64"
 640     fi
 641   else
 642     cpu="ppc"
 643   fi
 644 elif check_define __mips__ ; then
 645   cpu="mips"
 646 elif check_define __s390__ ; then
 647   if check_define __s390x__ ; then
 648     cpu="s390x"
 649   else
 650     cpu="s390"
 651   fi
 652 elif check_define __riscv ; then
 653   if check_define _LP64 ; then
 654     cpu="riscv64"
 655   else
 656     cpu="riscv32"
 657   fi
 658 elif check_define __arm__ ; then
 659   cpu="arm"
 660 elif check_define __aarch64__ ; then
 661   cpu="aarch64"
 662 else
 663   cpu=$(uname -m)
 664 fi
 665
 666 ARCH=
 667 # Normalise host CPU name and set ARCH.
 668 # Note that this case should only have supported host CPUs, not guests.
 669 case "$cpu" in
 670   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 671   ;;
 672   ppc64le)
 673     ARCH="ppc64"
 674   ;;
 675   i386|i486|i586|i686|i86pc|BePC)
 676     cpu="i386"
 677   ;;
 678   x86_64|amd64)
 679     cpu="x86_64"
 680   ;;
 681   armv*b|armv*l|arm)
 682     cpu="arm"
 683   ;;
 684   aarch64)
 685     cpu="aarch64"
 686   ;;
 687   mips*)
 688     cpu="mips"
 689   ;;
 690   sparc|sun4[cdmuv])
 691     cpu="sparc"
 692   ;;
 693   *)
 694     # This will result in either an error or falling back to TCI later
 695     ARCH=unknown
 696   ;;
 697 esac
 698 if test -z "$ARCH"; then
 699   ARCH="$cpu"
 700 fi
 701
 702 # OS specific
 703
 704 case $targetos in
 705 MINGW32*)
 706   mingw32="yes"
 707   audio_possible_drivers="dsound sdl"
 708   if check_include dsound.h; then
 709     audio_drv_list="dsound"
 710   else
 711     audio_drv_list=""
 712   fi
 713   supported_os="yes"
 714   pie="no"
 715 ;;
 716 GNU/kFreeBSD)
 717   bsd="yes"
 718   audio_drv_list="oss try-sdl"
 719   audio_possible_drivers="oss sdl pa"
 720 ;;
 721 FreeBSD)
 722   bsd="yes"
 723   make="${MAKE-gmake}"
 724   audio_drv_list="oss try-sdl"
 725   audio_possible_drivers="oss sdl pa"
 726   # needed for kinfo_getvmmap(3) in libutil.h
 727   netmap=""  # enable netmap autodetect
 728 ;;
 729 DragonFly)
 730   bsd="yes"
 731   make="${MAKE-gmake}"
 732   audio_drv_list="oss try-sdl"
 733   audio_possible_drivers="oss sdl pa"
 734 ;;
 735 NetBSD)
 736   bsd="yes"
 737   make="${MAKE-gmake}"
 738   audio_drv_list="oss try-sdl"
 739   audio_possible_drivers="oss sdl"
 740   oss_lib="-lossaudio"
 741 ;;
 742 OpenBSD)
 743   bsd="yes"
 744   make="${MAKE-gmake}"
 745   audio_drv_list="try-sdl"
 746   audio_possible_drivers="sdl"
 747 ;;
 748 Darwin)
 749   bsd="yes"
 750   darwin="yes"
 751   audio_drv_list="try-coreaudio try-sdl"
 752   audio_possible_drivers="coreaudio sdl"
 753   # Disable attempts to use ObjectiveC features in os/object.h since they
 754   # won't work when we're compiling with gcc as a C compiler.
 755   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 756 ;;
 757 SunOS)
 758   solaris="yes"
 759   make="${MAKE-gmake}"
 760   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 761   if test -f /usr/include/sys/soundcard.h ; then
 762     audio_drv_list="oss try-sdl"
 763   fi
 764   audio_possible_drivers="oss sdl"
 765 # needed for CMSG_ macros in sys/socket.h
 766   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 767 # needed for TIOCWIN* defines in termios.h
 768   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 769 ;;
 770 Haiku)
 771   haiku="yes"
 772   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 773 ;;
 774 Linux)
 775   audio_drv_list="try-pa oss"
 776   audio_possible_drivers="oss alsa sdl pa"
 777   linux="yes"
 778   linux_user="yes"
 779   vhost_user=${default_feature:-yes}
 780 ;;
 781 esac
 782
 783 if [ "$bsd" = "yes" ] ; then
 784   if [ "$darwin" != "yes" ] ; then
 785     bsd_user="yes"
 786   fi
 787 fi
 788
 789 : ${make=${MAKE-make}}
 790
 791 # We prefer python 3.x. A bare 'python' is traditionally
 792 # python 2.x, but some distros have it as python 3.x, so
 793 # we check that too
 794 python=
 795 explicit_python=no
 796 for binary in "${PYTHON-python3}" python
 797 do
 798     if has "$binary"
 799     then
 800         python=$(command -v "$binary")
 801         break
 802     fi
 803 done
 804
 805
 806 # Check for ancillary tools used in testing
 807 genisoimage=
 808 for binary in genisoimage mkisofs
 809 do
 810     if has $binary
 811     then
 812         genisoimage=$(command -v "$binary")
 813         break
 814     fi
 815 done
 816
 817 # Default objcc to clang if available, otherwise use CC
 818 if has clang; then
 819   objcc=clang
 820 else
 821   objcc="$cc"
 822 fi
 823
 824 if test "$mingw32" = "yes" ; then
 825   EXESUF=".exe"
 826   HOST_DSOSUF=".dll"
 827   # MinGW needs -mthreads for TLS and macro _MT.
 828   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 829   write_c_skeleton;
 830   prefix="/qemu"
 831   qemu_suffix=""
 832   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 833 fi
 834
 835 werror=""
 836
 837 for opt do
 838   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 839   case "$opt" in
 840   --help|-h) show_help=yes
 841   ;;
 842   --version|-V) exec cat $source_path/VERSION
 843   ;;
 844   --prefix=*) prefix="$optarg"
 845   ;;
 846   --interp-prefix=*) interp_prefix="$optarg"
 847   ;;
 848   --cross-prefix=*)
 849   ;;
 850   --cc=*)
 851   ;;
 852   --host-cc=*) host_cc="$optarg"
 853   ;;
 854   --cxx=*)
 855   ;;
 856   --iasl=*) iasl="$optarg"
 857   ;;
 858   --objcc=*) objcc="$optarg"
 859   ;;
 860   --make=*) make="$optarg"
 861   ;;
 862   --install=*)
 863   ;;
 864   --python=*) python="$optarg" ; explicit_python=yes
 865   ;;
 866   --sphinx-build=*) sphinx_build="$optarg"
 867   ;;
 868   --skip-meson) skip_meson=yes
 869   ;;
 870   --meson=*) meson="$optarg"
 871   ;;
 872   --ninja=*) ninja="$optarg"
 873   ;;
 874   --smbd=*) smbd="$optarg"
 875   ;;
 876   --extra-cflags=*)
 877   ;;
 878   --extra-cxxflags=*)
 879   ;;
 880   --extra-ldflags=*)
 881   ;;
 882   --enable-debug-info)
 883   ;;
 884   --disable-debug-info)
 885   ;;
 886   --cross-cc-*)
 887   ;;
 888   --enable-modules)
 889       modules="yes"
 890   ;;
 891   --disable-modules)
 892       modules="no"
 893   ;;
 894   --disable-module-upgrades) module_upgrades="no"
 895   ;;
 896   --enable-module-upgrades) module_upgrades="yes"
 897   ;;
 898   --cpu=*)
 899   ;;
 900   --target-list=*) target_list="$optarg"
 901                    if test "$target_list_exclude"; then
 902                        error_exit "Can't mix --target-list with --target-list-exclude"
 903                    fi
 904   ;;
 905   --target-list-exclude=*) target_list_exclude="$optarg"
 906                    if test "$target_list"; then
 907                        error_exit "Can't mix --target-list-exclude with --target-list"
 908                    fi
 909   ;;
 910   --enable-trace-backends=*) trace_backends="$optarg"
 911   ;;
 912   # XXX: backwards compatibility
 913   --enable-trace-backend=*) trace_backends="$optarg"
 914   ;;
 915   --with-trace-file=*) trace_file="$optarg"
 916   ;;
 917   --with-default-devices) default_devices="true"
 918   ;;
 919   --without-default-devices) default_devices="false"
 920   ;;
 921   --without-default-features) # processed above
 922   ;;
 923   --enable-gprof) gprof="yes"
 924   ;;
 925   --enable-gcov) gcov="yes"
 926   ;;
 927   --static)
 928     static="yes"
 929     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 930   ;;
 931   --mandir=*) mandir="$optarg"
 932   ;;
 933   --bindir=*) bindir="$optarg"
 934   ;;
 935   --libdir=*) libdir="$optarg"
 936   ;;
 937   --libexecdir=*) libexecdir="$optarg"
 938   ;;
 939   --includedir=*) includedir="$optarg"
 940   ;;
 941   --datadir=*) datadir="$optarg"
 942   ;;
 943   --with-suffix=*) qemu_suffix="$optarg"
 944   ;;
 945   --docdir=*) docdir="$optarg"
 946   ;;
 947   --localedir=*) localedir="$optarg"
 948   ;;
 949   --sysconfdir=*) sysconfdir="$optarg"
 950   ;;
 951   --localstatedir=*) local_statedir="$optarg"
 952   ;;
 953   --firmwarepath=*) firmwarepath="$optarg"
 954   ;;
 955   --host=*|--build=*|\
 956   --disable-dependency-tracking|\
 957   --sbindir=*|--sharedstatedir=*|\
 958   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 959   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 960     # These switches are silently ignored, for compatibility with
 961     # autoconf-generated configure scripts. This allows QEMU's
 962     # configure to be used by RPM and similar macros that set
 963     # lots of directory switches by default.
 964   ;;
 965   --disable-sdl) sdl="disabled"
 966   ;;
 967   --enable-sdl) sdl="enabled"
 968   ;;
 969   --disable-sdl-image) sdl_image="disabled"
 970   ;;
 971   --enable-sdl-image) sdl_image="enabled"
 972   ;;
 973   --disable-qom-cast-debug) qom_cast_debug="no"
 974   ;;
 975   --enable-qom-cast-debug) qom_cast_debug="yes"
 976   ;;
 977   --disable-virtfs) virtfs="disabled"
 978   ;;
 979   --enable-virtfs) virtfs="enabled"
 980   ;;
 981   --disable-libudev) libudev="disabled"
 982   ;;
 983   --enable-libudev) libudev="enabled"
 984   ;;
 985   --disable-virtiofsd) virtiofsd="disabled"
 986   ;;
 987   --enable-virtiofsd) virtiofsd="enabled"
 988   ;;
 989   --disable-mpath) mpath="disabled"
 990   ;;
 991   --enable-mpath) mpath="enabled"
 992   ;;
 993   --disable-vnc) vnc="disabled"
 994   ;;
 995   --enable-vnc) vnc="enabled"
 996   ;;
 997   --disable-gettext) gettext="disabled"
 998   ;;
 999   --enable-gettext) gettext="enabled"
1000   ;;
1001   --oss-lib=*) oss_lib="$optarg"
1002   ;;
1003   --audio-drv-list=*) audio_drv_list="$optarg"
1004   ;;
1005   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1006   ;;
1007   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1008   ;;
1009   --enable-debug-tcg) debug_tcg="yes"
1010   ;;
1011   --disable-debug-tcg) debug_tcg="no"
1012   ;;
1013   --enable-debug)
1014       # Enable debugging options that aren't excessively noisy
1015       debug_tcg="yes"
1016       debug_mutex="yes"
1017       debug="yes"
1018       strip_opt="no"
1019       fortify_source="no"
1020   ;;
1021   --enable-sanitizers) sanitizers="yes"
1022   ;;
1023   --disable-sanitizers) sanitizers="no"
1024   ;;
1025   --enable-tsan) tsan="yes"
1026   ;;
1027   --disable-tsan) tsan="no"
1028   ;;
1029   --enable-sparse) sparse="enabled"
1030   ;;
1031   --disable-sparse) sparse="disabled"
1032   ;;
1033   --disable-strip) strip_opt="no"
1034   ;;
1035   --disable-vnc-sasl) vnc_sasl="disabled"
1036   ;;
1037   --enable-vnc-sasl) vnc_sasl="enabled"
1038   ;;
1039   --disable-vnc-jpeg) vnc_jpeg="disabled"
1040   ;;
1041   --enable-vnc-jpeg) vnc_jpeg="enabled"
1042   ;;
1043   --disable-vnc-png) vnc_png="disabled"
1044   ;;
1045   --enable-vnc-png) vnc_png="enabled"
1046   ;;
1047   --disable-slirp) slirp="disabled"
1048   ;;
1049   --enable-slirp) slirp="enabled"
1050   ;;
1051   --enable-slirp=git) slirp="internal"
1052   ;;
1053   --enable-slirp=system) slirp="system"
1054   ;;
1055   --disable-vde) vde="no"
1056   ;;
1057   --enable-vde) vde="yes"
1058   ;;
1059   --disable-netmap) netmap="no"
1060   ;;
1061   --enable-netmap) netmap="yes"
1062   ;;
1063   --disable-xen) xen="disabled"
1064   ;;
1065   --enable-xen) xen="enabled"
1066   ;;
1067   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1068   ;;
1069   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1070   ;;
1071   --disable-brlapi) brlapi="disabled"
1072   ;;
1073   --enable-brlapi) brlapi="enabled"
1074   ;;
1075   --disable-kvm) kvm="disabled"
1076   ;;
1077   --enable-kvm) kvm="enabled"
1078   ;;
1079   --disable-hax) hax="disabled"
1080   ;;
1081   --enable-hax) hax="enabled"
1082   ;;
1083   --disable-hvf) hvf="disabled"
1084   ;;
1085   --enable-hvf) hvf="enabled"
1086   ;;
1087   --disable-nvmm) nvmm="disabled"
1088   ;;
1089   --enable-nvmm) nvmm="enabled"
1090   ;;
1091   --disable-whpx) whpx="disabled"
1092   ;;
1093   --enable-whpx) whpx="enabled"
1094   ;;
1095   --disable-tcg-interpreter) tcg_interpreter="false"
1096   ;;
1097   --enable-tcg-interpreter) tcg_interpreter="true"
1098   ;;
1099   --disable-cap-ng)  cap_ng="disabled"
1100   ;;
1101   --enable-cap-ng) cap_ng="enabled"
1102   ;;
1103   --disable-tcg) tcg="disabled"
1104   ;;
1105   --enable-tcg) tcg="enabled"
1106   ;;
1107   --disable-malloc-trim) malloc_trim="disabled"
1108   ;;
1109   --enable-malloc-trim) malloc_trim="enabled"
1110   ;;
1111   --disable-spice) spice="no"
1112   ;;
1113   --enable-spice)
1114       spice_protocol="yes"
1115       spice="yes"
1116   ;;
1117   --disable-spice-protocol)
1118       spice_protocol="no"
1119       spice="no"
1120   ;;
1121   --enable-spice-protocol) spice_protocol="yes"
1122   ;;
1123   --disable-libiscsi) libiscsi="disabled"
1124   ;;
1125   --enable-libiscsi) libiscsi="enabled"
1126   ;;
1127   --disable-libnfs) libnfs="disabled"
1128   ;;
1129   --enable-libnfs) libnfs="enabled"
1130   ;;
1131   --enable-profiler) profiler="yes"
1132   ;;
1133   --disable-cocoa) cocoa="disabled"
1134   ;;
1135   --enable-cocoa) cocoa="enabled"
1136   ;;
1137   --disable-system) softmmu="no"
1138   ;;
1139   --enable-system) softmmu="yes"
1140   ;;
1141   --disable-user)
1142       linux_user="no" ;
1143       bsd_user="no" ;
1144   ;;
1145   --enable-user) ;;
1146   --disable-linux-user) linux_user="no"
1147   ;;
1148   --enable-linux-user) linux_user="yes"
1149   ;;
1150   --disable-bsd-user) bsd_user="no"
1151   ;;
1152   --enable-bsd-user) bsd_user="yes"
1153   ;;
1154   --enable-pie) pie="yes"
1155   ;;
1156   --disable-pie) pie="no"
1157   ;;
1158   --enable-werror) werror="yes"
1159   ;;
1160   --disable-werror) werror="no"
1161   ;;
1162   --enable-lto) lto="true"
1163   ;;
1164   --disable-lto) lto="false"
1165   ;;
1166   --enable-stack-protector) stack_protector="yes"
1167   ;;
1168   --disable-stack-protector) stack_protector="no"
1169   ;;
1170   --enable-safe-stack) safe_stack="yes"
1171   ;;
1172   --disable-safe-stack) safe_stack="no"
1173   ;;
1174   --enable-cfi)
1175       cfi="true";
1176       lto="true";
1177   ;;
1178   --disable-cfi) cfi="false"
1179   ;;
1180   --enable-cfi-debug) cfi_debug="true"
1181   ;;
1182   --disable-cfi-debug) cfi_debug="false"
1183   ;;
1184   --disable-curses) curses="disabled"
1185   ;;
1186   --enable-curses) curses="enabled"
1187   ;;
1188   --disable-iconv) iconv="disabled"
1189   ;;
1190   --enable-iconv) iconv="enabled"
1191   ;;
1192   --disable-curl) curl="disabled"
1193   ;;
1194   --enable-curl) curl="enabled"
1195   ;;
1196   --disable-fdt) fdt="disabled"
1197   ;;
1198   --enable-fdt) fdt="enabled"
1199   ;;
1200   --enable-fdt=git) fdt="internal"
1201   ;;
1202   --enable-fdt=system) fdt="system"
1203   ;;
1204   --disable-linux-aio) linux_aio="no"
1205   ;;
1206   --enable-linux-aio) linux_aio="yes"
1207   ;;
1208   --disable-linux-io-uring) linux_io_uring="disabled"
1209   ;;
1210   --enable-linux-io-uring) linux_io_uring="enabled"
1211   ;;
1212   --disable-attr) attr="disabled"
1213   ;;
1214   --enable-attr) attr="enabled"
1215   ;;
1216   --disable-membarrier) membarrier="no"
1217   ;;
1218   --enable-membarrier) membarrier="yes"
1219   ;;
1220   --disable-bpf) bpf="disabled"
1221   ;;
1222   --enable-bpf) bpf="enabled"
1223   ;;
1224   --disable-blobs) blobs="false"
1225   ;;
1226   --with-pkgversion=*) pkgversion="$optarg"
1227   ;;
1228   --with-coroutine=*) coroutine="$optarg"
1229   ;;
1230   --disable-coroutine-pool) coroutine_pool="no"
1231   ;;
1232   --enable-coroutine-pool) coroutine_pool="yes"
1233   ;;
1234   --enable-debug-stack-usage) debug_stack_usage="yes"
1235   ;;
1236   --enable-crypto-afalg) crypto_afalg="yes"
1237   ;;
1238   --disable-crypto-afalg) crypto_afalg="no"
1239   ;;
1240   --disable-docs) docs="disabled"
1241   ;;
1242   --enable-docs) docs="enabled"
1243   ;;
1244   --disable-vhost-net) vhost_net="no"
1245   ;;
1246   --enable-vhost-net) vhost_net="yes"
1247   ;;
1248   --disable-vhost-crypto) vhost_crypto="no"
1249   ;;
1250   --enable-vhost-crypto) vhost_crypto="yes"
1251   ;;
1252   --disable-vhost-scsi) vhost_scsi="no"
1253   ;;
1254   --enable-vhost-scsi) vhost_scsi="yes"
1255   ;;
1256   --disable-vhost-vsock) vhost_vsock="no"
1257   ;;
1258   --enable-vhost-vsock) vhost_vsock="yes"
1259   ;;
1260   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1261   ;;
1262   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1263   ;;
1264   --disable-vhost-user-fs) vhost_user_fs="no"
1265   ;;
1266   --enable-vhost-user-fs) vhost_user_fs="yes"
1267   ;;
1268   --disable-opengl) opengl="no"
1269   ;;
1270   --enable-opengl) opengl="yes"
1271   ;;
1272   --disable-rbd) rbd="disabled"
1273   ;;
1274   --enable-rbd) rbd="enabled"
1275   ;;
1276   --disable-xfsctl) xfs="no"
1277   ;;
1278   --enable-xfsctl) xfs="yes"
1279   ;;
1280   --disable-smartcard) smartcard="disabled"
1281   ;;
1282   --enable-smartcard) smartcard="enabled"
1283   ;;
1284   --disable-u2f) u2f="disabled"
1285   ;;
1286   --enable-u2f) u2f="enabled"
1287   ;;
1288   --disable-libusb) libusb="disabled"
1289   ;;
1290   --enable-libusb) libusb="enabled"
1291   ;;
1292   --disable-usb-redir) usb_redir="disabled"
1293   ;;
1294   --enable-usb-redir) usb_redir="enabled"
1295   ;;
1296   --disable-zlib-test)
1297   ;;
1298   --disable-lzo) lzo="disabled"
1299   ;;
1300   --enable-lzo) lzo="enabled"
1301   ;;
1302   --disable-snappy) snappy="disabled"
1303   ;;
1304   --enable-snappy) snappy="enabled"
1305   ;;
1306   --disable-bzip2) bzip2="disabled"
1307   ;;
1308   --enable-bzip2) bzip2="enabled"
1309   ;;
1310   --enable-lzfse) lzfse="enabled"
1311   ;;
1312   --disable-lzfse) lzfse="disabled"
1313   ;;
1314   --disable-zstd) zstd="disabled"
1315   ;;
1316   --enable-zstd) zstd="enabled"
1317   ;;
1318   --enable-guest-agent) guest_agent="yes"
1319   ;;
1320   --disable-guest-agent) guest_agent="no"
1321   ;;
1322   --enable-guest-agent-msi) guest_agent_msi="enabled"
1323   ;;
1324   --disable-guest-agent-msi) guest_agent_msi="disabled"
1325   ;;
1326   --with-vss-sdk) vss_win32_sdk=""
1327   ;;
1328   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1329   ;;
1330   --without-vss-sdk) vss_win32_sdk="no"
1331   ;;
1332   --with-win-sdk) win_sdk=""
1333   ;;
1334   --with-win-sdk=*) win_sdk="$optarg"
1335   ;;
1336   --without-win-sdk) win_sdk="no"
1337   ;;
1338   --enable-tools) want_tools="yes"
1339   ;;
1340   --disable-tools) want_tools="no"
1341   ;;
1342   --enable-seccomp) seccomp="enabled"
1343   ;;
1344   --disable-seccomp) seccomp="disabled"
1345   ;;
1346   --disable-glusterfs) glusterfs="disabled"
1347   ;;
1348   --disable-avx2) avx2_opt="no"
1349   ;;
1350   --enable-avx2) avx2_opt="yes"
1351   ;;
1352   --disable-avx512f) avx512f_opt="no"
1353   ;;
1354   --enable-avx512f) avx512f_opt="yes"
1355   ;;
1356
1357   --enable-glusterfs) glusterfs="enabled"
1358   ;;
1359   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1360       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1361   ;;
1362   --enable-vhdx|--disable-vhdx)
1363       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1364   ;;
1365   --enable-uuid|--disable-uuid)
1366       echo "$0: $opt is obsolete, UUID support is always built" >&2
1367   ;;
1368   --disable-gtk) gtk="disabled"
1369   ;;
1370   --enable-gtk) gtk="enabled"
1371   ;;
1372   --tls-priority=*) tls_priority="$optarg"
1373   ;;
1374   --disable-gnutls) gnutls="disabled"
1375   ;;
1376   --enable-gnutls) gnutls="enabled"
1377   ;;
1378   --disable-nettle) nettle="disabled"
1379   ;;
1380   --enable-nettle) nettle="enabled"
1381   ;;
1382   --disable-gcrypt) gcrypt="disabled"
1383   ;;
1384   --enable-gcrypt) gcrypt="enabled"
1385   ;;
1386   --disable-auth-pam) auth_pam="disabled"
1387   ;;
1388   --enable-auth-pam) auth_pam="enabled"
1389   ;;
1390   --enable-rdma) rdma="yes"
1391   ;;
1392   --disable-rdma) rdma="no"
1393   ;;
1394   --enable-pvrdma) pvrdma="yes"
1395   ;;
1396   --disable-pvrdma) pvrdma="no"
1397   ;;
1398   --disable-vte) vte="disabled"
1399   ;;
1400   --enable-vte) vte="enabled"
1401   ;;
1402   --disable-virglrenderer) virglrenderer="disabled"
1403   ;;
1404   --enable-virglrenderer) virglrenderer="enabled"
1405   ;;
1406   --disable-tpm) tpm="no"
1407   ;;
1408   --enable-tpm) tpm="yes"
1409   ;;
1410   --disable-libssh) libssh="no"
1411   ;;
1412   --enable-libssh) libssh="yes"
1413   ;;
1414   --disable-live-block-migration) live_block_migration="no"
1415   ;;
1416   --enable-live-block-migration) live_block_migration="yes"
1417   ;;
1418   --disable-numa) numa="no"
1419   ;;
1420   --enable-numa) numa="yes"
1421   ;;
1422   --disable-libxml2) libxml2="disabled"
1423   ;;
1424   --enable-libxml2) libxml2="enabled"
1425   ;;
1426   --disable-tcmalloc) tcmalloc="no"
1427   ;;
1428   --enable-tcmalloc) tcmalloc="yes"
1429   ;;
1430   --disable-jemalloc) jemalloc="no"
1431   ;;
1432   --enable-jemalloc) jemalloc="yes"
1433   ;;
1434   --disable-replication) replication="no"
1435   ;;
1436   --enable-replication) replication="yes"
1437   ;;
1438   --disable-bochs) bochs="no"
1439   ;;
1440   --enable-bochs) bochs="yes"
1441   ;;
1442   --disable-cloop) cloop="no"
1443   ;;
1444   --enable-cloop) cloop="yes"
1445   ;;
1446   --disable-dmg) dmg="no"
1447   ;;
1448   --enable-dmg) dmg="yes"
1449   ;;
1450   --disable-qcow1) qcow1="no"
1451   ;;
1452   --enable-qcow1) qcow1="yes"
1453   ;;
1454   --disable-vdi) vdi="no"
1455   ;;
1456   --enable-vdi) vdi="yes"
1457   ;;
1458   --disable-vvfat) vvfat="no"
1459   ;;
1460   --enable-vvfat) vvfat="yes"
1461   ;;
1462   --disable-qed) qed="no"
1463   ;;
1464   --enable-qed) qed="yes"
1465   ;;
1466   --disable-parallels) parallels="no"
1467   ;;
1468   --enable-parallels) parallels="yes"
1469   ;;
1470   --disable-vhost-user) vhost_user="no"
1471   ;;
1472   --enable-vhost-user) vhost_user="yes"
1473   ;;
1474   --disable-vhost-vdpa) vhost_vdpa="no"
1475   ;;
1476   --enable-vhost-vdpa) vhost_vdpa="yes"
1477   ;;
1478   --disable-vhost-kernel) vhost_kernel="no"
1479   ;;
1480   --enable-vhost-kernel) vhost_kernel="yes"
1481   ;;
1482   --disable-capstone) capstone="disabled"
1483   ;;
1484   --enable-capstone) capstone="enabled"
1485   ;;
1486   --enable-capstone=git) capstone="internal"
1487   ;;
1488   --enable-capstone=system) capstone="system"
1489   ;;
1490   --with-git=*) git="$optarg"
1491   ;;
1492   --enable-git-update)
1493       git_submodules_action="update"
1494       echo "--enable-git-update deprecated, use --with-git-submodules=update"
1495   ;;
1496   --disable-git-update)
1497       git_submodules_action="validate"
1498       echo "--disable-git-update deprecated, use --with-git-submodules=validate"
1499   ;;
1500   --with-git-submodules=*)
1501       git_submodules_action="$optarg"
1502   ;;
1503   --enable-debug-mutex) debug_mutex=yes
1504   ;;
1505   --disable-debug-mutex) debug_mutex=no
1506   ;;
1507   --enable-libpmem) libpmem=disabled
1508   ;;
1509   --disable-libpmem) libpmem=enabled
1510   ;;
1511   --enable-xkbcommon) xkbcommon="enabled"
1512   ;;
1513   --disable-xkbcommon) xkbcommon="disabled"
1514   ;;
1515   --enable-plugins) plugins="yes"
1516   ;;
1517   --disable-plugins) plugins="no"
1518   ;;
1519   --enable-containers) use_containers="yes"
1520   ;;
1521   --disable-containers) use_containers="no"
1522   ;;
1523   --enable-fuzzing) fuzzing=yes
1524   ;;
1525   --disable-fuzzing) fuzzing=no
1526   ;;
1527   --gdb=*) gdb_bin="$optarg"
1528   ;;
1529   --enable-rng-none) rng_none=yes
1530   ;;
1531   --disable-rng-none) rng_none=no
1532   ;;
1533   --enable-keyring) secret_keyring="yes"
1534   ;;
1535   --disable-keyring) secret_keyring="no"
1536   ;;
1537   --enable-libdaxctl) libdaxctl=disabled
1538   ;;
1539   --disable-libdaxctl) libdaxctl=enabled
1540   ;;
1541   --enable-fuse) fuse="enabled"
1542   ;;
1543   --disable-fuse) fuse="disabled"
1544   ;;
1545   --enable-fuse-lseek) fuse_lseek="enabled"
1546   ;;
1547   --disable-fuse-lseek) fuse_lseek="disabled"
1548   ;;
1549   --enable-multiprocess) multiprocess="enabled"
1550   ;;
1551   --disable-multiprocess) multiprocess="disabled"
1552   ;;
1553   --enable-gio) gio=yes
1554   ;;
1555   --disable-gio) gio=no
1556   ;;
1557   --enable-slirp-smbd) slirp_smbd=yes
1558   ;;
1559   --disable-slirp-smbd) slirp_smbd=no
1560   ;;
1561   *)
1562       echo "ERROR: unknown option $opt"
1563       echo "Try '$0 --help' for more information"
1564       exit 1
1565   ;;
1566   esac
1567 done
1568
1569 case $git_submodules_action in
1570     update|validate)
1571         if test ! -e "$source_path/.git"; then
1572             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1573             exit 1
1574         fi
1575     ;;
1576     ignore)
1577         if ! test -f "$source_path/ui/keycodemapdb/README"
1578         then
1579             echo
1580             echo "ERROR: missing GIT submodules"
1581             echo
1582             if test -e "$source_path/.git"; then
1583                 echo "--with-git-submodules=ignore specified but submodules were not"
1584                 echo "checked out.  Please initialize and update submodules."
1585             else
1586                 echo "This is not a GIT checkout but module content appears to"
1587                 echo "be missing. Do not use 'git archive' or GitHub download links"
1588                 echo "to acquire QEMU source archives. Non-GIT builds are only"
1589                 echo "supported with source archives linked from:"
1590                 echo
1591                 echo "  https://www.qemu.org/download/#source"
1592                 echo
1593                 echo "Developers working with GIT can use scripts/archive-source.sh"
1594                 echo "if they need to create valid source archives."
1595             fi
1596             echo
1597             exit 1
1598         fi
1599     ;;
1600     *)
1601         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1602         exit 1
1603     ;;
1604 esac
1605
1606 libdir="${libdir:-$prefix/lib}"
1607 libexecdir="${libexecdir:-$prefix/libexec}"
1608 includedir="${includedir:-$prefix/include}"
1609
1610 if test "$mingw32" = "yes" ; then
1611     bindir="${bindir:-$prefix}"
1612 else
1613     bindir="${bindir:-$prefix/bin}"
1614 fi
1615 mandir="${mandir:-$prefix/share/man}"
1616 datadir="${datadir:-$prefix/share}"
1617 docdir="${docdir:-$prefix/share/doc}"
1618 sysconfdir="${sysconfdir:-$prefix/etc}"
1619 local_statedir="${local_statedir:-$prefix/var}"
1620 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1621 localedir="${localedir:-$datadir/locale}"
1622
1623 case "$cpu" in
1624     ppc)
1625            CPU_CFLAGS="-m32"
1626            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1627            ;;
1628     ppc64)
1629            CPU_CFLAGS="-m64"
1630            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1631            ;;
1632     sparc)
1633            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1634            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1635            ;;
1636     sparc64)
1637            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1638            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1639            ;;
1640     s390)
1641            CPU_CFLAGS="-m31"
1642            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1643            ;;
1644     s390x)
1645            CPU_CFLAGS="-m64"
1646            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1647            ;;
1648     i386)
1649            CPU_CFLAGS="-m32"
1650            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1651            ;;
1652     x86_64)
1653            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1654            # If we truly care, we should simply detect this case at
1655            # runtime and generate the fallback to serial emulation.
1656            CPU_CFLAGS="-m64 -mcx16"
1657            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1658            ;;
1659     x32)
1660            CPU_CFLAGS="-mx32"
1661            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1662            ;;
1663     # No special flags required for other host CPUs
1664 esac
1665
1666 eval "cross_cc_${cpu}=\$cc"
1667 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1668 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1669
1670 # For user-mode emulation the host arch has to be one we explicitly
1671 # support, even if we're using TCI.
1672 if [ "$ARCH" = "unknown" ]; then
1673   bsd_user="no"
1674   linux_user="no"
1675 fi
1676
1677 default_target_list=""
1678 deprecated_targets_list=ppc64abi32-linux-user
1679 deprecated_features=""
1680 mak_wilds=""
1681
1682 if [ "$softmmu" = "yes" ]; then
1683     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1684 fi
1685 if [ "$linux_user" = "yes" ]; then
1686     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1687 fi
1688 if [ "$bsd_user" = "yes" ]; then
1689     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1690 fi
1691
1692 # If the user doesn't explicitly specify a deprecated target we will
1693 # skip it.
1694 if test -z "$target_list"; then
1695     if test -z "$target_list_exclude"; then
1696         target_list_exclude="$deprecated_targets_list"
1697     else
1698         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1699     fi
1700 fi
1701
1702 for config in $mak_wilds; do
1703     target="$(basename "$config" .mak)"
1704     if echo "$target_list_exclude" | grep -vq "$target"; then
1705         default_target_list="${default_target_list} $target"
1706     fi
1707 done
1708
1709 # Enumerate public trace backends for --help output
1710 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1711
1712 if test x"$show_help" = x"yes" ; then
1713 cat << EOF
1714
1715 Usage: configure [options]
1716 Options: [defaults in brackets after descriptions]
1717
1718 Standard options:
1719   --help                   print this message
1720   --prefix=PREFIX          install in PREFIX [$prefix]
1721   --interp-prefix=PREFIX   where to find shared libraries, etc.
1722                            use %M for cpu name [$interp_prefix]
1723   --target-list=LIST       set target list (default: build all non-deprecated)
1724 $(echo Available targets: $default_target_list | \
1725   fold -s -w 53 | sed -e 's/^/                           /')
1726 $(echo Deprecated targets: $deprecated_targets_list | \
1727   fold -s -w 53 | sed -e 's/^/                           /')
1728   --target-list-exclude=LIST exclude a set of targets from the default target-list
1729
1730 Advanced options (experts only):
1731   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1732   --cc=CC                  use C compiler CC [$cc]
1733   --iasl=IASL              use ACPI compiler IASL [$iasl]
1734   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1735                            build time
1736   --cxx=CXX                use C++ compiler CXX [$cxx]
1737   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1738   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1739   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1740   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1741   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1742   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1743   --make=MAKE              use specified make [$make]
1744   --python=PYTHON          use specified python [$python]
1745   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1746   --meson=MESON            use specified meson [$meson]
1747   --ninja=NINJA            use specified ninja [$ninja]
1748   --smbd=SMBD              use specified smbd [$smbd]
1749   --with-git=GIT           use specified git [$git]
1750   --with-git-submodules=update   update git submodules (default if .git dir exists)
1751   --with-git-submodules=validate fail if git submodules are not up to date
1752   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1753   --static                 enable static build [$static]
1754   --mandir=PATH            install man pages in PATH
1755   --datadir=PATH           install firmware in PATH/$qemu_suffix
1756   --localedir=PATH         install translation in PATH/$qemu_suffix
1757   --docdir=PATH            install documentation in PATH/$qemu_suffix
1758   --bindir=PATH            install binaries in PATH
1759   --libdir=PATH            install libraries in PATH
1760   --libexecdir=PATH        install helper binaries in PATH
1761   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1762   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1763   --firmwarepath=PATH      search PATH for firmware files
1764   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1765   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1766   --with-pkgversion=VERS   use specified string as sub-version of the package
1767   --without-default-features default all --enable-* options to "disabled"
1768   --without-default-devices  do not include any device that is not needed to
1769                            start the emulator (only use if you are including
1770                            desired devices in default-configs/devices/)
1771   --enable-debug           enable common debug build options
1772   --enable-sanitizers      enable default sanitizers
1773   --enable-tsan            enable thread sanitizer
1774   --disable-strip          disable stripping binaries
1775   --disable-werror         disable compilation abort on warning
1776   --disable-stack-protector disable compiler-provided stack protection
1777   --audio-drv-list=LIST    set audio drivers list:
1778                            Available drivers: $audio_possible_drivers
1779   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1780   --block-drv-rw-whitelist=L
1781                            set block driver read-write whitelist
1782                            (affects only QEMU, not qemu-img)
1783   --block-drv-ro-whitelist=L
1784                            set block driver read-only whitelist
1785                            (affects only QEMU, not qemu-img)
1786   --enable-trace-backends=B Set trace backend
1787                            Available backends: $trace_backend_list
1788   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1789                            Default:trace-<pid>
1790   --disable-slirp          disable SLIRP userspace network connectivity
1791   --enable-tcg-interpreter enable TCI (TCG with bytecode interpreter, experimental and slow)
1792   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1793   --oss-lib                path to OSS library
1794   --cpu=CPU                Build for host CPU [$cpu]
1795   --with-coroutine=BACKEND coroutine backend. Supported options:
1796                            ucontext, sigaltstack, windows
1797   --enable-gcov            enable test coverage analysis with gcov
1798   --disable-blobs          disable installing provided firmware blobs
1799   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1800   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1801   --tls-priority           default TLS protocol/cipher priority string
1802   --enable-gprof           QEMU profiling with gprof
1803   --enable-profiler        profiler support
1804   --enable-debug-stack-usage
1805                            track the maximum stack usage of stacks created by qemu_alloc_stack
1806   --enable-plugins
1807                            enable plugins via shared library loading
1808   --disable-containers     don't use containers for cross-building
1809   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1810
1811 Optional features, enabled with --enable-FEATURE and
1812 disabled with --disable-FEATURE, default is enabled if available
1813 (unless built with --without-default-features):
1814
1815   system          all system emulation targets
1816   user            supported user emulation targets
1817   linux-user      all linux usermode emulation targets
1818   bsd-user        all BSD usermode emulation targets
1819   docs            build documentation
1820   guest-agent     build the QEMU Guest Agent
1821   guest-agent-msi build guest agent Windows MSI installation package
1822   pie             Position Independent Executables
1823   modules         modules support (non-Windows)
1824   module-upgrades try to load modules from alternate paths for upgrades
1825   debug-tcg       TCG debugging (default is disabled)
1826   debug-info      debugging information
1827   lto             Enable Link-Time Optimization.
1828   sparse          sparse checker
1829   safe-stack      SafeStack Stack Smash Protection. Depends on
1830                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1831   cfi             Enable Control-Flow Integrity for indirect function calls.
1832                   In case of a cfi violation, QEMU is terminated with SIGILL
1833                   Depends on lto and is incompatible with modules
1834                   Automatically enables Link-Time Optimization (lto)
1835   cfi-debug       In case of a cfi violation, a message containing the line that
1836                   triggered the error is written to stderr. After the error,
1837                   QEMU is still terminated with SIGILL
1838   gnutls          GNUTLS cryptography support
1839   nettle          nettle cryptography support
1840   gcrypt          libgcrypt cryptography support
1841   auth-pam        PAM access control
1842   sdl             SDL UI
1843   sdl-image       SDL Image support for icons
1844   gtk             gtk UI
1845   vte             vte support for the gtk UI
1846   curses          curses UI
1847   iconv           font glyph conversion support
1848   vnc             VNC UI support
1849   vnc-sasl        SASL encryption for VNC server
1850   vnc-jpeg        JPEG lossy compression for VNC server
1851   vnc-png         PNG compression for VNC server
1852   cocoa           Cocoa UI (Mac OS X only)
1853   virtfs          VirtFS
1854   virtiofsd       build virtiofs daemon (virtiofsd)
1855   libudev         Use libudev to enumerate host devices
1856   mpath           Multipath persistent reservation passthrough
1857   xen             xen backend driver support
1858   xen-pci-passthrough    PCI passthrough support for Xen
1859   brlapi          BrlAPI (Braile)
1860   curl            curl connectivity
1861   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1862   fdt             fdt device tree
1863   kvm             KVM acceleration support
1864   hax             HAX acceleration support
1865   hvf             Hypervisor.framework acceleration support
1866   nvmm            NVMM acceleration support
1867   whpx            Windows Hypervisor Platform acceleration support
1868   rdma            Enable RDMA-based migration
1869   pvrdma          Enable PVRDMA support
1870   vde             support for vde network
1871   netmap          support for netmap network
1872   linux-aio       Linux AIO support
1873   linux-io-uring  Linux io_uring support
1874   cap-ng          libcap-ng support
1875   attr            attr and xattr support
1876   vhost-net       vhost-net kernel acceleration support
1877   vhost-vsock     virtio sockets device support
1878   vhost-scsi      vhost-scsi kernel target support
1879   vhost-crypto    vhost-user-crypto backend support
1880   vhost-kernel    vhost kernel backend support
1881   vhost-user      vhost-user backend support
1882   vhost-user-blk-server    vhost-user-blk server support
1883   vhost-vdpa      vhost-vdpa kernel backend support
1884   bpf             BPF kernel support
1885   spice           spice
1886   spice-protocol  spice-protocol
1887   rbd             rados block device (rbd)
1888   libiscsi        iscsi support
1889   libnfs          nfs support
1890   smartcard       smartcard support (libcacard)
1891   u2f             U2F support (u2f-emu)
1892   libusb          libusb (for usb passthrough)
1893   live-block-migration   Block migration in the main migration stream
1894   usb-redir       usb network redirection support
1895   lzo             support of lzo compression library
1896   snappy          support of snappy compression library
1897   bzip2           support of bzip2 compression library
1898                   (for reading bzip2-compressed dmg images)
1899   lzfse           support of lzfse compression library
1900                   (for reading lzfse-compressed dmg images)
1901   zstd            support for zstd compression library
1902                   (for migration compression and qcow2 cluster compression)
1903   seccomp         seccomp support
1904   coroutine-pool  coroutine freelist (better performance)
1905   glusterfs       GlusterFS backend
1906   tpm             TPM support
1907   libssh          ssh block device support
1908   numa            libnuma support
1909   libxml2         for Parallels image format
1910   tcmalloc        tcmalloc support
1911   jemalloc        jemalloc support
1912   avx2            AVX2 optimization support
1913   avx512f         AVX512F optimization support
1914   replication     replication support
1915   opengl          opengl support
1916   virglrenderer   virgl rendering support
1917   xfsctl          xfsctl support
1918   qom-cast-debug  cast debugging support
1919   tools           build qemu-io, qemu-nbd and qemu-img tools
1920   bochs           bochs image format support
1921   cloop           cloop image format support
1922   dmg             dmg image format support
1923   qcow1           qcow v1 image format support
1924   vdi             vdi image format support
1925   vvfat           vvfat image format support
1926   qed             qed image format support
1927   parallels       parallels image format support
1928   crypto-afalg    Linux AF_ALG crypto backend driver
1929   capstone        capstone disassembler support
1930   debug-mutex     mutex debugging support
1931   libpmem         libpmem support
1932   xkbcommon       xkbcommon support
1933   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1934   libdaxctl       libdaxctl support
1935   fuse            FUSE block device export
1936   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
1937   multiprocess    Out of process device emulation support
1938   gio             libgio support
1939   slirp-smbd      use smbd (at path --smbd=*) in slirp networking
1940
1941 NOTE: The object files are built at the place where configure is launched
1942 EOF
1943 exit 0
1944 fi
1945
1946 # Remove old dependency files to make sure that they get properly regenerated
1947 rm -f */config-devices.mak.d
1948
1949 if test -z "$python"
1950 then
1951     error_exit "Python not found. Use --python=/path/to/python"
1952 fi
1953 if ! has "$make"
1954 then
1955     error_exit "GNU make ($make) not found"
1956 fi
1957
1958 # Note that if the Python conditional here evaluates True we will exit
1959 # with status 1 which is a shell 'false' value.
1960 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1961   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1962       "Use --python=/path/to/python to specify a supported Python."
1963 fi
1964
1965 # Preserve python version since some functionality is dependent on it
1966 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)
1967
1968 # Suppress writing compiled files
1969 python="$python -B"
1970
1971 if test -z "$meson"; then
1972     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1973         meson=meson
1974     elif test $git_submodules_action != 'ignore' ; then
1975         meson=git
1976     elif test -e "${source_path}/meson/meson.py" ; then
1977         meson=internal
1978     else
1979         if test "$explicit_python" = yes; then
1980             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1981         else
1982             error_exit "Meson not found.  Use --meson=/path/to/meson"
1983         fi
1984     fi
1985 else
1986     # Meson uses its own Python interpreter to invoke other Python scripts,
1987     # but the user wants to use the one they specified with --python.
1988     #
1989     # We do not want to override the distro Python interpreter (and sometimes
1990     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1991     # just require --meson=git|internal together with --python.
1992     if test "$explicit_python" = yes; then
1993         case "$meson" in
1994             git | internal) ;;
1995             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1996         esac
1997     fi
1998 fi
1999
2000 if test "$meson" = git; then
2001     git_submodules="${git_submodules} meson"
2002 fi
2003
2004 case "$meson" in
2005     git | internal)
2006         meson="$python ${source_path}/meson/meson.py"
2007         ;;
2008     *) meson=$(command -v "$meson") ;;
2009 esac
2010
2011 # Probe for ninja
2012
2013 if test -z "$ninja"; then
2014     for c in ninja ninja-build samu; do
2015         if has $c; then
2016             ninja=$(command -v "$c")
2017             break
2018         fi
2019     done
2020     if test -z "$ninja"; then
2021       error_exit "Cannot find Ninja"
2022     fi
2023 fi
2024
2025 # Check that the C compiler works. Doing this here before testing
2026 # the host CPU ensures that we had a valid CC to autodetect the
2027 # $cpu var (and we should bail right here if that's not the case).
2028 # It also allows the help message to be printed without a CC.
2029 write_c_skeleton;
2030 if compile_object ; then
2031   : C compiler works ok
2032 else
2033     error_exit "\"$cc\" either does not exist or does not work"
2034 fi
2035 if ! compile_prog ; then
2036     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
2037 fi
2038
2039 # Consult white-list to determine whether to enable werror
2040 # by default.  Only enable by default for git builds
2041 if test -z "$werror" ; then
2042     if test "$git_submodules_action" != "ignore" && \
2043         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2044         werror="yes"
2045     else
2046         werror="no"
2047     fi
2048 fi
2049
2050 if test "$targetos" = "bogus"; then
2051     # Now that we know that we're not printing the help and that
2052     # the compiler works (so the results of the check_defines we used
2053     # to identify the OS are reliable), if we didn't recognize the
2054     # host OS we should stop now.
2055     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2056 fi
2057
2058 # Check whether the compiler matches our minimum requirements:
2059 cat > $TMPC << EOF
2060 #if defined(__clang_major__) && defined(__clang_minor__)
2061 # ifdef __apple_build_version__
2062 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
2063 #   error You need at least XCode Clang v10.0 to compile QEMU
2064 #  endif
2065 # else
2066 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
2067 #   error You need at least Clang v6.0 to compile QEMU
2068 #  endif
2069 # endif
2070 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2071 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 5)
2072 #  error You need at least GCC v7.5.0 to compile QEMU
2073 # endif
2074 #else
2075 # error You either need GCC or Clang to compiler QEMU
2076 #endif
2077 int main (void) { return 0; }
2078 EOF
2079 if ! compile_prog "" "" ; then
2080     error_exit "You need at least GCC v7.5 or Clang v6.0 (or XCode Clang v10.0)"
2081 fi
2082
2083 # Accumulate -Wfoo and -Wno-bar separately.
2084 # We will list all of the enable flags first, and the disable flags second.
2085 # Note that we do not add -Werror, because that would enable it for all
2086 # configure tests. If a configure test failed due to -Werror this would
2087 # just silently disable some features, so it's too error prone.
2088
2089 warn_flags=
2090 add_to warn_flags -Wold-style-declaration
2091 add_to warn_flags -Wold-style-definition
2092 add_to warn_flags -Wtype-limits
2093 add_to warn_flags -Wformat-security
2094 add_to warn_flags -Wformat-y2k
2095 add_to warn_flags -Winit-self
2096 add_to warn_flags -Wignored-qualifiers
2097 add_to warn_flags -Wempty-body
2098 add_to warn_flags -Wnested-externs
2099 add_to warn_flags -Wendif-labels
2100 add_to warn_flags -Wexpansion-to-defined
2101 add_to warn_flags -Wimplicit-fallthrough=2
2102
2103 nowarn_flags=
2104 add_to nowarn_flags -Wno-initializer-overrides
2105 add_to nowarn_flags -Wno-missing-include-dirs
2106 add_to nowarn_flags -Wno-shift-negative-value
2107 add_to nowarn_flags -Wno-string-plus-int
2108 add_to nowarn_flags -Wno-typedef-redefinition
2109 add_to nowarn_flags -Wno-tautological-type-limit-compare
2110 add_to nowarn_flags -Wno-psabi
2111
2112 gcc_flags="$warn_flags $nowarn_flags"
2113
2114 cc_has_warning_flag() {
2115     write_c_skeleton;
2116
2117     # Use the positive sense of the flag when testing for -Wno-wombat
2118     # support (gcc will happily accept the -Wno- form of unknown
2119     # warning options).
2120     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2121     compile_prog "-Werror $optflag" ""
2122 }
2123
2124 for flag in $gcc_flags; do
2125     if cc_has_warning_flag $flag ; then
2126         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2127     fi
2128 done
2129
2130 if test "$stack_protector" != "no"; then
2131   cat > $TMPC << EOF
2132 int main(int argc, char *argv[])
2133 {
2134     char arr[64], *p = arr, *c = argv[0];
2135     while (*c) {
2136         *p++ = *c++;
2137     }
2138     return 0;
2139 }
2140 EOF
2141   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2142   sp_on=0
2143   for flag in $gcc_flags; do
2144     # We need to check both a compile and a link, since some compiler
2145     # setups fail only on a .c->.o compile and some only at link time
2146     if compile_object "-Werror $flag" &&
2147        compile_prog "-Werror $flag" ""; then
2148       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2149       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2150       sp_on=1
2151       break
2152     fi
2153   done
2154   if test "$stack_protector" = yes; then
2155     if test $sp_on = 0; then
2156       error_exit "Stack protector not supported"
2157     fi
2158   fi
2159 fi
2160
2161 # Disable -Wmissing-braces on older compilers that warn even for
2162 # the "universal" C zero initializer {0}.
2163 cat > $TMPC << EOF
2164 struct {
2165   int a[2];
2166 } x = {0};
2167 EOF
2168 if compile_object "-Werror" "" ; then
2169   :
2170 else
2171   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2172 fi
2173
2174 # Our module code doesn't support Windows
2175 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2176   error_exit "Modules are not available for Windows"
2177 fi
2178
2179 # module_upgrades is only reasonable if modules are enabled
2180 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2181   error_exit "Can't enable module-upgrades as Modules are not enabled"
2182 fi
2183
2184 # Static linking is not possible with modules or PIE
2185 if test "$static" = "yes" ; then
2186   if test "$modules" = "yes" ; then
2187     error_exit "static and modules are mutually incompatible"
2188   fi
2189 fi
2190
2191 # Unconditional check for compiler __thread support
2192   cat > $TMPC << EOF
2193 static __thread int tls_var;
2194 int main(void) { return tls_var; }
2195 EOF
2196
2197 if ! compile_prog "-Werror" "" ; then
2198     error_exit "Your compiler does not support the __thread specifier for " \
2199         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2200 fi
2201
2202 cat > $TMPC << EOF
2203
2204 #ifdef __linux__
2205 #  define THREAD __thread
2206 #else
2207 #  define THREAD
2208 #endif
2209 static THREAD int tls_var;
2210 int main(void) { return tls_var; }
2211 EOF
2212
2213 # Check we support --no-pie first; we will need this for building ROMs.
2214 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2215   CFLAGS_NOPIE="-fno-pie"
2216 fi
2217
2218 if test "$static" = "yes"; then
2219   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2220     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2221     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2222     pie="yes"
2223   elif test "$pie" = "yes"; then
2224     error_exit "-static-pie not available due to missing toolchain support"
2225   else
2226     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2227     pie="no"
2228   fi
2229 elif test "$pie" = "no"; then
2230   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2231 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2232   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2233   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2234   pie="yes"
2235 elif test "$pie" = "yes"; then
2236   error_exit "PIE not available due to missing toolchain support"
2237 else
2238   echo "Disabling PIE due to missing toolchain support"
2239   pie="no"
2240 fi
2241
2242 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2243 # The combination is known as "full relro", because .got.plt is read-only too.
2244 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2245   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2246 fi
2247
2248 ##########################################
2249 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2250 # use i686 as default anyway, but for those that don't, an explicit
2251 # specification is necessary
2252
2253 if test "$cpu" = "i386"; then
2254   cat > $TMPC << EOF
2255 static int sfaa(int *ptr)
2256 {
2257   return __sync_fetch_and_and(ptr, 0);
2258 }
2259
2260 int main(void)
2261 {
2262   int val = 42;
2263   val = __sync_val_compare_and_swap(&val, 0, 1);
2264   sfaa(&val);
2265   return val;
2266 }
2267 EOF
2268   if ! compile_prog "" "" ; then
2269     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2270   fi
2271 fi
2272
2273 #########################################
2274 # Solaris specific configure tool chain decisions
2275
2276 if test "$solaris" = "yes" ; then
2277   if has ar; then
2278     :
2279   else
2280     if test -f /usr/ccs/bin/ar ; then
2281       error_exit "No path includes ar" \
2282           "Add /usr/ccs/bin to your path and rerun configure"
2283     fi
2284     error_exit "No path includes ar"
2285   fi
2286 fi
2287
2288 if test "$tcg" = "enabled"; then
2289     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
2290     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
2291 fi
2292
2293 if test -z "${target_list+xxx}" ; then
2294     default_targets=yes
2295     for target in $default_target_list; do
2296         target_list="$target_list $target"
2297     done
2298     target_list="${target_list# }"
2299 else
2300     default_targets=no
2301     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2302     for target in $target_list; do
2303         # Check that we recognised the target name; this allows a more
2304         # friendly error message than if we let it fall through.
2305         case " $default_target_list " in
2306             *" $target "*)
2307                 ;;
2308             *)
2309                 error_exit "Unknown target name '$target'"
2310                 ;;
2311         esac
2312     done
2313 fi
2314
2315 for target in $target_list; do
2316     # if a deprecated target is enabled we note it here
2317     if echo "$deprecated_targets_list" | grep -q "$target"; then
2318         add_to deprecated_features $target
2319     fi
2320 done
2321
2322 # see if system emulation was really requested
2323 case " $target_list " in
2324   *"-softmmu "*) softmmu=yes
2325   ;;
2326   *) softmmu=no
2327   ;;
2328 esac
2329
2330 feature_not_found() {
2331   feature=$1
2332   remedy=$2
2333
2334   error_exit "User requested feature $feature" \
2335       "configure was not able to find it." \
2336       "$remedy"
2337 }
2338
2339 # ---
2340 # big/little endian test
2341 cat > $TMPC << EOF
2342 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2343 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2344 extern int foo(short *, short *);
2345 int main(int argc, char *argv[]) {
2346     return foo(big_endian, little_endian);
2347 }
2348 EOF
2349
2350 if compile_object ; then
2351     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2352         bigendian="yes"
2353     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2354         bigendian="no"
2355     else
2356         echo big/little test failed
2357     fi
2358 else
2359     echo big/little test failed
2360 fi
2361
2362 ##########################################
2363 # system tools
2364 if test -z "$want_tools"; then
2365     if test "$softmmu" = "no"; then
2366         want_tools=no
2367     else
2368         want_tools=yes
2369     fi
2370 fi
2371
2372 ##########################################
2373 # Disable features only meaningful for system-mode emulation
2374 if test "$softmmu" = "no"; then
2375     audio_drv_list=""
2376 fi
2377
2378 ##########################################
2379 # L2TPV3 probe
2380
2381 cat > $TMPC <<EOF
2382 #include <sys/socket.h>
2383 #include <linux/ip.h>
2384 int main(void) { return sizeof(struct mmsghdr); }
2385 EOF
2386 if compile_prog "" "" ; then
2387   l2tpv3=yes
2388 else
2389   l2tpv3=no
2390 fi
2391
2392 cat > $TMPC <<EOF
2393 #include <sys/mman.h>
2394 int main(int argc, char *argv[]) {
2395     return mlockall(MCL_FUTURE);
2396 }
2397 EOF
2398 if compile_prog "" "" ; then
2399   have_mlockall=yes
2400 else
2401   have_mlockall=no
2402 fi
2403
2404 #########################################
2405 # vhost interdependencies and host support
2406
2407 # vhost backends
2408 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2409   error_exit "vhost-user is only available on Linux"
2410 fi
2411 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2412 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2413   error_exit "vhost-vdpa is only available on Linux"
2414 fi
2415 test "$vhost_kernel" = "" && vhost_kernel=$linux
2416 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2417   error_exit "vhost-kernel is only available on Linux"
2418 fi
2419
2420 # vhost-kernel devices
2421 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2422 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2423   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2424 fi
2425 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2426 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2427   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2428 fi
2429
2430 # vhost-user backends
2431 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2432 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2433   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2434 fi
2435 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2436 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2437   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2438 fi
2439 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2440 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2441   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2442 fi
2443 #vhost-vdpa backends
2444 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2445 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2446   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2447 fi
2448
2449 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2450 if test "$vhost_net" = ""; then
2451   test "$vhost_net_user" = "yes" && vhost_net=yes
2452   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2453   test "$vhost_kernel" = "yes" && vhost_net=yes
2454 fi
2455
2456 ##########################################
2457 # pkg-config probe
2458
2459 if ! has "$pkg_config_exe"; then
2460   error_exit "pkg-config binary '$pkg_config_exe' not found"
2461 fi
2462
2463 ##########################################
2464 # NPTL probe
2465
2466 if test "$linux_user" = "yes"; then
2467   cat > $TMPC <<EOF
2468 #include <sched.h>
2469 #include <linux/futex.h>
2470 int main(void) {
2471 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2472 #error bork
2473 #endif
2474   return 0;
2475 }
2476 EOF
2477   if ! compile_object ; then
2478     feature_not_found "nptl" "Install glibc and linux kernel headers."
2479   fi
2480 fi
2481
2482 ##########################################
2483 # xen probe
2484
2485 if test "$xen" != "disabled" ; then
2486   # Check whether Xen library path is specified via --extra-ldflags to avoid
2487   # overriding this setting with pkg-config output. If not, try pkg-config
2488   # to obtain all needed flags.
2489
2490   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2491      $pkg_config --exists xencontrol ; then
2492     xen_ctrl_version="$(printf '%d%02d%02d' \
2493       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2494     xen=enabled
2495     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2496     xen_pc="$xen_pc xenevtchn xendevicemodel"
2497     if $pkg_config --exists xentoolcore; then
2498       xen_pc="$xen_pc xentoolcore"
2499     fi
2500     xen_cflags="$($pkg_config --cflags $xen_pc)"
2501     xen_libs="$($pkg_config --libs $xen_pc)"
2502   else
2503
2504     xen_libs="-lxenstore -lxenctrl"
2505     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2506
2507     # First we test whether Xen headers and libraries are available.
2508     # If no, we are done and there is no Xen support.
2509     # If yes, more tests are run to detect the Xen version.
2510
2511     # Xen (any)
2512     cat > $TMPC <<EOF
2513 #include <xenctrl.h>
2514 int main(void) {
2515   return 0;
2516 }
2517 EOF
2518     if ! compile_prog "" "$xen_libs" ; then
2519       # Xen not found
2520       if test "$xen" = "enabled" ; then
2521         feature_not_found "xen" "Install xen devel"
2522       fi
2523       xen=disabled
2524
2525     # Xen unstable
2526     elif
2527         cat > $TMPC <<EOF &&
2528 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2529 #define __XEN_TOOLS__
2530 #include <xendevicemodel.h>
2531 #include <xenforeignmemory.h>
2532 int main(void) {
2533   xendevicemodel_handle *xd;
2534   xenforeignmemory_handle *xfmem;
2535
2536   xd = xendevicemodel_open(0, 0);
2537   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2538
2539   xfmem = xenforeignmemory_open(0, 0);
2540   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2541
2542   return 0;
2543 }
2544 EOF
2545         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2546       then
2547       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2548       xen_ctrl_version=41100
2549       xen=enabled
2550     elif
2551         cat > $TMPC <<EOF &&
2552 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2553 #include <xenforeignmemory.h>
2554 #include <xentoolcore.h>
2555 int main(void) {
2556   xenforeignmemory_handle *xfmem;
2557
2558   xfmem = xenforeignmemory_open(0, 0);
2559   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2560   xentoolcore_restrict_all(0);
2561
2562   return 0;
2563 }
2564 EOF
2565         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2566       then
2567       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2568       xen_ctrl_version=41000
2569       xen=enabled
2570     elif
2571         cat > $TMPC <<EOF &&
2572 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2573 #define __XEN_TOOLS__
2574 #include <xendevicemodel.h>
2575 int main(void) {
2576   xendevicemodel_handle *xd;
2577
2578   xd = xendevicemodel_open(0, 0);
2579   xendevicemodel_close(xd);
2580
2581   return 0;
2582 }
2583 EOF
2584         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2585       then
2586       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2587       xen_ctrl_version=40900
2588       xen=enabled
2589     elif
2590         cat > $TMPC <<EOF &&
2591 /*
2592  * If we have stable libs the we don't want the libxc compat
2593  * layers, regardless of what CFLAGS we may have been given.
2594  *
2595  * Also, check if xengnttab_grant_copy_segment_t is defined and
2596  * grant copy operation is implemented.
2597  */
2598 #undef XC_WANT_COMPAT_EVTCHN_API
2599 #undef XC_WANT_COMPAT_GNTTAB_API
2600 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2601 #include <xenctrl.h>
2602 #include <xenstore.h>
2603 #include <xenevtchn.h>
2604 #include <xengnttab.h>
2605 #include <xenforeignmemory.h>
2606 #include <stdint.h>
2607 #include <xen/hvm/hvm_info_table.h>
2608 #if !defined(HVM_MAX_VCPUS)
2609 # error HVM_MAX_VCPUS not defined
2610 #endif
2611 int main(void) {
2612   xc_interface *xc = NULL;
2613   xenforeignmemory_handle *xfmem;
2614   xenevtchn_handle *xe;
2615   xengnttab_handle *xg;
2616   xengnttab_grant_copy_segment_t* seg = NULL;
2617
2618   xs_daemon_open();
2619
2620   xc = xc_interface_open(0, 0, 0);
2621   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2622   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2623   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2624   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2625
2626   xfmem = xenforeignmemory_open(0, 0);
2627   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2628
2629   xe = xenevtchn_open(0, 0);
2630   xenevtchn_fd(xe);
2631
2632   xg = xengnttab_open(0, 0);
2633   xengnttab_grant_copy(xg, 0, seg);
2634
2635   return 0;
2636 }
2637 EOF
2638         compile_prog "" "$xen_libs $xen_stable_libs"
2639       then
2640       xen_ctrl_version=40800
2641       xen=enabled
2642     elif
2643         cat > $TMPC <<EOF &&
2644 /*
2645  * If we have stable libs the we don't want the libxc compat
2646  * layers, regardless of what CFLAGS we may have been given.
2647  */
2648 #undef XC_WANT_COMPAT_EVTCHN_API
2649 #undef XC_WANT_COMPAT_GNTTAB_API
2650 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2651 #include <xenctrl.h>
2652 #include <xenstore.h>
2653 #include <xenevtchn.h>
2654 #include <xengnttab.h>
2655 #include <xenforeignmemory.h>
2656 #include <stdint.h>
2657 #include <xen/hvm/hvm_info_table.h>
2658 #if !defined(HVM_MAX_VCPUS)
2659 # error HVM_MAX_VCPUS not defined
2660 #endif
2661 int main(void) {
2662   xc_interface *xc = NULL;
2663   xenforeignmemory_handle *xfmem;
2664   xenevtchn_handle *xe;
2665   xengnttab_handle *xg;
2666
2667   xs_daemon_open();
2668
2669   xc = xc_interface_open(0, 0, 0);
2670   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2671   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2672   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2673   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2674
2675   xfmem = xenforeignmemory_open(0, 0);
2676   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2677
2678   xe = xenevtchn_open(0, 0);
2679   xenevtchn_fd(xe);
2680
2681   xg = xengnttab_open(0, 0);
2682   xengnttab_map_grant_ref(xg, 0, 0, 0);
2683
2684   return 0;
2685 }
2686 EOF
2687         compile_prog "" "$xen_libs $xen_stable_libs"
2688       then
2689       xen_ctrl_version=40701
2690       xen=enabled
2691
2692     # Xen 4.6
2693     elif
2694         cat > $TMPC <<EOF &&
2695 #include <xenctrl.h>
2696 #include <xenstore.h>
2697 #include <stdint.h>
2698 #include <xen/hvm/hvm_info_table.h>
2699 #if !defined(HVM_MAX_VCPUS)
2700 # error HVM_MAX_VCPUS not defined
2701 #endif
2702 int main(void) {
2703   xc_interface *xc;
2704   xs_daemon_open();
2705   xc = xc_interface_open(0, 0, 0);
2706   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2707   xc_gnttab_open(NULL, 0);
2708   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2709   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2710   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2711   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2712   return 0;
2713 }
2714 EOF
2715         compile_prog "" "$xen_libs"
2716       then
2717       xen_ctrl_version=40600
2718       xen=enabled
2719
2720     # Xen 4.5
2721     elif
2722         cat > $TMPC <<EOF &&
2723 #include <xenctrl.h>
2724 #include <xenstore.h>
2725 #include <stdint.h>
2726 #include <xen/hvm/hvm_info_table.h>
2727 #if !defined(HVM_MAX_VCPUS)
2728 # error HVM_MAX_VCPUS not defined
2729 #endif
2730 int main(void) {
2731   xc_interface *xc;
2732   xs_daemon_open();
2733   xc = xc_interface_open(0, 0, 0);
2734   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2735   xc_gnttab_open(NULL, 0);
2736   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2737   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2738   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2739   return 0;
2740 }
2741 EOF
2742         compile_prog "" "$xen_libs"
2743       then
2744       xen_ctrl_version=40500
2745       xen=enabled
2746
2747     elif
2748         cat > $TMPC <<EOF &&
2749 #include <xenctrl.h>
2750 #include <xenstore.h>
2751 #include <stdint.h>
2752 #include <xen/hvm/hvm_info_table.h>
2753 #if !defined(HVM_MAX_VCPUS)
2754 # error HVM_MAX_VCPUS not defined
2755 #endif
2756 int main(void) {
2757   xc_interface *xc;
2758   xs_daemon_open();
2759   xc = xc_interface_open(0, 0, 0);
2760   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2761   xc_gnttab_open(NULL, 0);
2762   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2763   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2764   return 0;
2765 }
2766 EOF
2767         compile_prog "" "$xen_libs"
2768       then
2769       xen_ctrl_version=40200
2770       xen=enabled
2771
2772     else
2773       if test "$xen" = "enabled" ; then
2774         feature_not_found "xen (unsupported version)" \
2775                           "Install a supported xen (xen 4.2 or newer)"
2776       fi
2777       xen=disabled
2778     fi
2779
2780     if test "$xen" = enabled; then
2781       if test $xen_ctrl_version -ge 40701  ; then
2782         xen_libs="$xen_libs $xen_stable_libs "
2783       fi
2784     fi
2785   fi
2786 fi
2787
2788 ##########################################
2789 # RDMA needs OpenFabrics libraries
2790 if test "$rdma" != "no" ; then
2791   cat > $TMPC <<EOF
2792 #include <rdma/rdma_cma.h>
2793 int main(void) { return 0; }
2794 EOF
2795   rdma_libs="-lrdmacm -libverbs -libumad"
2796   if compile_prog "" "$rdma_libs" ; then
2797     rdma="yes"
2798   else
2799     if test "$rdma" = "yes" ; then
2800         error_exit \
2801             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
2802             " Your options:" \
2803             "  (1) Fast: Install infiniband packages (devel) from your distro." \
2804             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
2805             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
2806     fi
2807     rdma="no"
2808   fi
2809 fi
2810
2811 ##########################################
2812 # PVRDMA detection
2813
2814 cat > $TMPC <<EOF &&
2815 #include <sys/mman.h>
2816
2817 int
2818 main(void)
2819 {
2820     char buf = 0;
2821     void *addr = &buf;
2822     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2823
2824     return 0;
2825 }
2826 EOF
2827
2828 if test "$rdma" = "yes" ; then
2829     case "$pvrdma" in
2830     "")
2831         if compile_prog "" ""; then
2832             pvrdma="yes"
2833         else
2834             pvrdma="no"
2835         fi
2836         ;;
2837     "yes")
2838         if ! compile_prog "" ""; then
2839             error_exit "PVRDMA is not supported since mremap is not implemented"
2840         fi
2841         pvrdma="yes"
2842         ;;
2843     "no")
2844         pvrdma="no"
2845         ;;
2846     esac
2847 else
2848     if test "$pvrdma" = "yes" ; then
2849         error_exit "PVRDMA requires rdma suppport"
2850     fi
2851     pvrdma="no"
2852 fi
2853
2854 # Let's see if enhanced reg_mr is supported
2855 if test "$pvrdma" = "yes" ; then
2856
2857 cat > $TMPC <<EOF &&
2858 #include <infiniband/verbs.h>
2859
2860 int
2861 main(void)
2862 {
2863     struct ibv_mr *mr;
2864     struct ibv_pd *pd = NULL;
2865     size_t length = 10;
2866     uint64_t iova = 0;
2867     int access = 0;
2868     void *addr = NULL;
2869
2870     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2871
2872     ibv_dereg_mr(mr);
2873
2874     return 0;
2875 }
2876 EOF
2877     if ! compile_prog "" "-libverbs"; then
2878         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
2879     fi
2880 fi
2881
2882 ##########################################
2883 # xfsctl() probe, used for file-posix.c
2884 if test "$xfs" != "no" ; then
2885   cat > $TMPC << EOF
2886 #include <stddef.h>  /* NULL */
2887 #include <xfs/xfs.h>
2888 int main(void)
2889 {
2890     xfsctl(NULL, 0, 0, NULL);
2891     return 0;
2892 }
2893 EOF
2894   if compile_prog "" "" ; then
2895     xfs="yes"
2896   else
2897     if test "$xfs" = "yes" ; then
2898       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
2899     fi
2900     xfs=no
2901   fi
2902 fi
2903
2904 ##########################################
2905 # vde libraries probe
2906 if test "$vde" != "no" ; then
2907   vde_libs="-lvdeplug"
2908   cat > $TMPC << EOF
2909 #include <libvdeplug.h>
2910 int main(void)
2911 {
2912     struct vde_open_args a = {0, 0, 0};
2913     char s[] = "";
2914     vde_open(s, s, &a);
2915     return 0;
2916 }
2917 EOF
2918   if compile_prog "" "$vde_libs" ; then
2919     vde=yes
2920   else
2921     if test "$vde" = "yes" ; then
2922       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
2923     fi
2924     vde=no
2925   fi
2926 fi
2927
2928 ##########################################
2929 # netmap support probe
2930 # Apart from looking for netmap headers, we make sure that the host API version
2931 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
2932 # a minor/major version number. Minor new features will be marked with values up
2933 # to 15, and if something happens that requires a change to the backend we will
2934 # move above 15, submit the backend fixes and modify this two bounds.
2935 if test "$netmap" != "no" ; then
2936   cat > $TMPC << EOF
2937 #include <inttypes.h>
2938 #include <net/if.h>
2939 #include <net/netmap.h>
2940 #include <net/netmap_user.h>
2941 #if (NETMAP_API < 11) || (NETMAP_API > 15)
2942 #error
2943 #endif
2944 int main(void) { return 0; }
2945 EOF
2946   if compile_prog "" "" ; then
2947     netmap=yes
2948   else
2949     if test "$netmap" = "yes" ; then
2950       feature_not_found "netmap"
2951     fi
2952     netmap=no
2953   fi
2954 fi
2955
2956 ##########################################
2957 # detect CoreAudio
2958 if test "$coreaudio" != "no" ; then
2959   coreaudio_libs="-framework CoreAudio"
2960   cat > $TMPC << EOF
2961 #include <CoreAudio/CoreAudio.h>
2962 int main(void)
2963 {
2964   return (int)AudioGetCurrentHostTime();
2965 }
2966 EOF
2967   if compile_prog "" "$coreaudio_libs" ; then
2968     coreaudio=yes
2969   else
2970     coreaudio=no
2971   fi
2972 fi
2973
2974 ##########################################
2975 # Sound support libraries probe
2976
2977 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
2978 for drv in $audio_drv_list; do
2979     case $drv in
2980     alsa | try-alsa)
2981     if $pkg_config alsa --exists; then
2982         alsa_libs=$($pkg_config alsa --libs)
2983         alsa_cflags=$($pkg_config alsa --cflags)
2984         alsa=yes
2985         if test "$drv" = "try-alsa"; then
2986             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
2987         fi
2988     else
2989         if test "$drv" = "try-alsa"; then
2990             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
2991         else
2992             error_exit "$drv check failed" \
2993                 "Make sure to have the $drv libs and headers installed."
2994         fi
2995     fi
2996     ;;
2997
2998     pa | try-pa)
2999     if $pkg_config libpulse --exists; then
3000         libpulse=yes
3001         pulse_libs=$($pkg_config libpulse --libs)
3002         pulse_cflags=$($pkg_config libpulse --cflags)
3003         if test "$drv" = "try-pa"; then
3004             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3005         fi
3006     else
3007         if test "$drv" = "try-pa"; then
3008             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3009         else
3010             error_exit "$drv check failed" \
3011                 "Make sure to have the $drv libs and headers installed."
3012         fi
3013     fi
3014     ;;
3015
3016     sdl)
3017     if test "$sdl" = "no"; then
3018         error_exit "sdl not found or disabled, can not use sdl audio driver"
3019     fi
3020     ;;
3021
3022     try-sdl)
3023     if test "$sdl" = "no"; then
3024         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3025     else
3026         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3027     fi
3028     ;;
3029
3030     coreaudio | try-coreaudio)
3031     if test "$coreaudio" = "no"; then
3032       if test "$drv" = "try-coreaudio"; then
3033         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio//')
3034       else
3035         error_exit "$drv check failed" \
3036                 "Make sure to have the $drv is available."
3037       fi
3038     else
3039       coreaudio_libs="-framework CoreAudio"
3040       if test "$drv" = "try-coreaudio"; then
3041         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio/coreaudio/')
3042       fi
3043     fi
3044     ;;
3045
3046     dsound)
3047       dsound_libs="-lole32 -ldxguid"
3048       audio_win_int="yes"
3049     ;;
3050
3051     oss)
3052       oss_libs="$oss_lib"
3053     ;;
3054
3055     jack | try-jack)
3056     if $pkg_config jack --exists; then
3057         libjack=yes
3058         jack_libs=$($pkg_config jack --libs)
3059         if test "$drv" = "try-jack"; then
3060             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3061         fi
3062     else
3063         if test "$drv" = "try-jack"; then
3064             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3065         else
3066             error_exit "$drv check failed" \
3067                 "Make sure to have the $drv libs and headers installed."
3068         fi
3069     fi
3070     ;;
3071
3072     *)
3073     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3074         error_exit "Unknown driver '$drv' selected" \
3075             "Possible drivers are: $audio_possible_drivers"
3076     }
3077     ;;
3078     esac
3079 done
3080
3081 ##########################################
3082 # glib support probe
3083
3084 glib_req_ver=2.56
3085 glib_modules=gthread-2.0
3086 if test "$modules" = yes; then
3087     glib_modules="$glib_modules gmodule-export-2.0"
3088 fi
3089 if test "$plugins" = yes; then
3090     glib_modules="$glib_modules gmodule-2.0"
3091 fi
3092
3093 for i in $glib_modules; do
3094     if $pkg_config --atleast-version=$glib_req_ver $i; then
3095         glib_cflags=$($pkg_config --cflags $i)
3096         glib_libs=$($pkg_config --libs $i)
3097     else
3098         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3099     fi
3100 done
3101
3102 # This workaround is required due to a bug in pkg-config file for glib as it
3103 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3104
3105 if test "$static" = yes && test "$mingw32" = yes; then
3106     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3107 fi
3108
3109 if ! test "$gio" = "no"; then
3110     pass=no
3111     if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3112         gio_cflags=$($pkg_config --cflags gio-2.0)
3113         gio_libs=$($pkg_config --libs gio-2.0)
3114         gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3115         if ! has "$gdbus_codegen"; then
3116             gdbus_codegen=
3117         fi
3118         # Check that the libraries actually work -- Ubuntu 18.04 ships
3119         # with pkg-config --static --libs data for gio-2.0 that is missing
3120         # -lblkid and will give a link error.
3121         cat > $TMPC <<EOF
3122 #include <gio/gio.h>
3123 int main(void)
3124 {
3125     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3126     return 0;
3127 }
3128 EOF
3129         if compile_prog "$gio_cflags" "$gio_libs" ; then
3130             pass=yes
3131         else
3132             pass=no
3133         fi
3134
3135         if test "$pass" = "yes" &&
3136             $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3137             gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3138             gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3139         fi
3140     fi
3141
3142     if test "$pass" = "no"; then
3143         if test "$gio" = "yes"; then
3144             feature_not_found "gio" "Install libgio >= 2.0"
3145         else
3146             gio=no
3147         fi
3148     else
3149         gio=yes
3150     fi
3151 fi
3152
3153 # Sanity check that the current size_t matches the
3154 # size that glib thinks it should be. This catches
3155 # problems on multi-arch where people try to build
3156 # 32-bit QEMU while pointing at 64-bit glib headers
3157 cat > $TMPC <<EOF
3158 #include <glib.h>
3159 #include <unistd.h>
3160
3161 #define QEMU_BUILD_BUG_ON(x) \
3162   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3163
3164 int main(void) {
3165    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3166    return 0;
3167 }
3168 EOF
3169
3170 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3171     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3172                "You probably need to set PKG_CONFIG_LIBDIR"\
3173                "to point to the right pkg-config files for your"\
3174                "build target"
3175 fi
3176
3177 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3178 cat > $TMPC << EOF
3179 #include <glib.h>
3180 int main(void) { return 0; }
3181 EOF
3182 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3183     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3184         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3185         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3186     fi
3187 fi
3188
3189 # Silence clang warnings triggered by glib < 2.57.2
3190 cat > $TMPC << EOF
3191 #include <glib.h>
3192 typedef struct Foo {
3193     int i;
3194 } Foo;
3195 static void foo_free(Foo *f)
3196 {
3197     g_free(f);
3198 }
3199 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3200 int main(void) { return 0; }
3201 EOF
3202 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3203     if cc_has_warning_flag "-Wno-unused-function"; then
3204         glib_cflags="$glib_cflags -Wno-unused-function"
3205         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3206     fi
3207 fi
3208
3209 ##########################################
3210 # SHA command probe for modules
3211 if test "$modules" = yes; then
3212     shacmd_probe="sha1sum sha1 shasum"
3213     for c in $shacmd_probe; do
3214         if has $c; then
3215             shacmd="$c"
3216             break
3217         fi
3218     done
3219     if test "$shacmd" = ""; then
3220         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3221     fi
3222 fi
3223
3224 ##########################################
3225 # pthread probe
3226 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3227
3228 pthread=no
3229 cat > $TMPC << EOF
3230 #include <pthread.h>
3231 static void *f(void *p) { return NULL; }
3232 int main(void) {
3233   pthread_t thread;
3234   pthread_create(&thread, 0, f, 0);
3235   return 0;
3236 }
3237 EOF
3238 if compile_prog "" "" ; then
3239   pthread=yes
3240 else
3241   for pthread_lib in $PTHREADLIBS_LIST; do
3242     if compile_prog "" "$pthread_lib" ; then
3243       pthread=yes
3244       break
3245     fi
3246   done
3247 fi
3248
3249 if test "$mingw32" != yes && test "$pthread" = no; then
3250   error_exit "pthread check failed" \
3251       "Make sure to have the pthread libs and headers installed."
3252 fi
3253
3254 # check for pthread_setname_np with thread id
3255 pthread_setname_np_w_tid=no
3256 cat > $TMPC << EOF
3257 #include <pthread.h>
3258
3259 static void *f(void *p) { return NULL; }
3260 int main(void)
3261 {
3262     pthread_t thread;
3263     pthread_create(&thread, 0, f, 0);
3264     pthread_setname_np(thread, "QEMU");
3265     return 0;
3266 }
3267 EOF
3268 if compile_prog "" "$pthread_lib" ; then
3269   pthread_setname_np_w_tid=yes
3270 fi
3271
3272 # check for pthread_setname_np without thread id
3273 pthread_setname_np_wo_tid=no
3274 cat > $TMPC << EOF
3275 #include <pthread.h>
3276
3277 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3278 int main(void)
3279 {
3280     pthread_t thread;
3281     pthread_create(&thread, 0, f, 0);
3282     return 0;
3283 }
3284 EOF
3285 if compile_prog "" "$pthread_lib" ; then
3286   pthread_setname_np_wo_tid=yes
3287 fi
3288
3289 ##########################################
3290 # libssh probe
3291 if test "$libssh" != "no" ; then
3292   if $pkg_config --exists "libssh >= 0.8.7"; then
3293     libssh_cflags=$($pkg_config libssh --cflags)
3294     libssh_libs=$($pkg_config libssh --libs)
3295     libssh=yes
3296   else
3297     if test "$libssh" = "yes" ; then
3298       error_exit "libssh required for --enable-libssh"
3299     fi
3300     libssh=no
3301   fi
3302 fi
3303
3304 ##########################################
3305 # linux-aio probe
3306
3307 if test "$linux_aio" != "no" ; then
3308   cat > $TMPC <<EOF
3309 #include <libaio.h>
3310 #include <sys/eventfd.h>
3311 #include <stddef.h>
3312 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3313 EOF
3314   if compile_prog "" "-laio" ; then
3315     linux_aio=yes
3316   else
3317     if test "$linux_aio" = "yes" ; then
3318       feature_not_found "linux AIO" "Install libaio devel"
3319     fi
3320     linux_aio=no
3321   fi
3322 fi
3323
3324 ##########################################
3325 # TPM emulation is only on POSIX
3326
3327 if test "$tpm" = ""; then
3328   if test "$mingw32" = "yes"; then
3329     tpm=no
3330   else
3331     tpm=yes
3332   fi
3333 elif test "$tpm" = "yes"; then
3334   if test "$mingw32" = "yes" ; then
3335     error_exit "TPM emulation only available on POSIX systems"
3336   fi
3337 fi
3338
3339 ##########################################
3340 # iovec probe
3341 cat > $TMPC <<EOF
3342 #include <sys/types.h>
3343 #include <sys/uio.h>
3344 #include <unistd.h>
3345 int main(void) { return sizeof(struct iovec); }
3346 EOF
3347 iovec=no
3348 if compile_prog "" "" ; then
3349   iovec=yes
3350 fi
3351
3352 ##########################################
3353 # fdt probe
3354
3355 case "$fdt" in
3356   auto | enabled | internal)
3357     # Simpler to always update submodule, even if not needed.
3358     git_submodules="${git_submodules} dtc"
3359     ;;
3360 esac
3361
3362 ##########################################
3363 # opengl probe (for sdl2, gtk)
3364
3365 gbm="no"
3366 if $pkg_config gbm; then
3367     gbm_cflags="$($pkg_config --cflags gbm)"
3368     gbm_libs="$($pkg_config --libs gbm)"
3369     gbm="yes"
3370 fi
3371
3372 if test "$opengl" != "no" ; then
3373   epoxy=no
3374   if $pkg_config epoxy; then
3375     cat > $TMPC << EOF
3376 #include <epoxy/egl.h>
3377 int main(void) { return 0; }
3378 EOF
3379     if compile_prog "" "" ; then
3380       epoxy=yes
3381     fi
3382   fi
3383
3384   if test "$epoxy" = "yes" ; then
3385     opengl_cflags="$($pkg_config --cflags epoxy)"
3386     opengl_libs="$($pkg_config --libs epoxy)"
3387     opengl=yes
3388   else
3389     if test "$opengl" = "yes" ; then
3390       feature_not_found "opengl" "Please install epoxy with EGL"
3391     fi
3392     opengl_cflags=""
3393     opengl_libs=""
3394     opengl=no
3395   fi
3396 fi
3397
3398 # Check for inotify functions when we are building linux-user
3399 # emulator.  This is done because older glibc versions don't
3400 # have syscall stubs for these implemented.  In that case we
3401 # don't provide them even if kernel supports them.
3402 #
3403 inotify=no
3404 cat > $TMPC << EOF
3405 #include <sys/inotify.h>
3406
3407 int
3408 main(void)
3409 {
3410         /* try to start inotify */
3411         return inotify_init();
3412 }
3413 EOF
3414 if compile_prog "" "" ; then
3415   inotify=yes
3416 fi
3417
3418 inotify1=no
3419 cat > $TMPC << EOF
3420 #include <sys/inotify.h>
3421
3422 int
3423 main(void)
3424 {
3425     /* try to start inotify */
3426     return inotify_init1(0);
3427 }
3428 EOF
3429 if compile_prog "" "" ; then
3430   inotify1=yes
3431 fi
3432
3433 # check if pipe2 is there
3434 pipe2=no
3435 cat > $TMPC << EOF
3436 #include <unistd.h>
3437 #include <fcntl.h>
3438
3439 int main(void)
3440 {
3441     int pipefd[2];
3442     return pipe2(pipefd, O_CLOEXEC);
3443 }
3444 EOF
3445 if compile_prog "" "" ; then
3446   pipe2=yes
3447 fi
3448
3449 # check if accept4 is there
3450 accept4=no
3451 cat > $TMPC << EOF
3452 #include <sys/socket.h>
3453 #include <stddef.h>
3454
3455 int main(void)
3456 {
3457     accept4(0, NULL, NULL, SOCK_CLOEXEC);
3458     return 0;
3459 }
3460 EOF
3461 if compile_prog "" "" ; then
3462   accept4=yes
3463 fi
3464
3465 # check if tee/splice is there. vmsplice was added same time.
3466 splice=no
3467 cat > $TMPC << EOF
3468 #include <unistd.h>
3469 #include <fcntl.h>
3470 #include <limits.h>
3471
3472 int main(void)
3473 {
3474     int len, fd = 0;
3475     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
3476     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
3477     return 0;
3478 }
3479 EOF
3480 if compile_prog "" "" ; then
3481   splice=yes
3482 fi
3483
3484 ##########################################
3485 # libnuma probe
3486
3487 if test "$numa" != "no" ; then
3488   cat > $TMPC << EOF
3489 #include <numa.h>
3490 int main(void) { return numa_available(); }
3491 EOF
3492
3493   if compile_prog "" "-lnuma" ; then
3494     numa=yes
3495     numa_libs="-lnuma"
3496   else
3497     if test "$numa" = "yes" ; then
3498       feature_not_found "numa" "install numactl devel"
3499     fi
3500     numa=no
3501   fi
3502 fi
3503
3504 malloc=system
3505 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
3506     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
3507     exit 1
3508 elif test "$tcmalloc" = "yes" ; then
3509     malloc=tcmalloc
3510 elif test "$jemalloc" = "yes" ; then
3511     malloc=jemalloc
3512 fi
3513
3514 # check for usbfs
3515 have_usbfs=no
3516 if test "$linux_user" = "yes"; then
3517   cat > $TMPC << EOF
3518 #include <linux/usbdevice_fs.h>
3519
3520 #ifndef USBDEVFS_GET_CAPABILITIES
3521 #error "USBDEVFS_GET_CAPABILITIES undefined"
3522 #endif
3523
3524 #ifndef USBDEVFS_DISCONNECT_CLAIM
3525 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
3526 #endif
3527
3528 int main(void)
3529 {
3530     return 0;
3531 }
3532 EOF
3533   if compile_prog "" ""; then
3534     have_usbfs=yes
3535   fi
3536 fi
3537
3538 ##########################################
3539 # spice probe
3540 if test "$spice_protocol" != "no" ; then
3541   spice_protocol_cflags=$($pkg_config --cflags spice-protocol 2>/dev/null)
3542   if $pkg_config --atleast-version=0.12.3 spice-protocol; then
3543     spice_protocol="yes"
3544   else
3545     if test "$spice_protocol" = "yes" ; then
3546       feature_not_found "spice_protocol" \
3547           "Install spice-protocol(>=0.12.3) devel"
3548     fi
3549     spice_protocol="no"
3550   fi
3551 fi
3552
3553 if test "$spice" != "no" ; then
3554   cat > $TMPC << EOF
3555 #include <spice.h>
3556 int main(void) { spice_server_new(); return 0; }
3557 EOF
3558   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
3559   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
3560   if $pkg_config --atleast-version=0.12.5 spice-server && \
3561      test "$spice_protocol" = "yes" && \
3562      compile_prog "$spice_cflags" "$spice_libs" ; then
3563     spice="yes"
3564   else
3565     if test "$spice" = "yes" ; then
3566       feature_not_found "spice" \
3567           "Install spice-server(>=0.12.5) devel"
3568     fi
3569     spice="no"
3570   fi
3571 fi
3572
3573 ##########################################
3574 # check if we have VSS SDK headers for win
3575
3576 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
3577         test "$vss_win32_sdk" != "no" ; then
3578   case "$vss_win32_sdk" in
3579     "")   vss_win32_include="-isystem $source_path" ;;
3580     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
3581           # handle path with spaces. So we symlink the headers into ".sdk/vss".
3582           vss_win32_include="-isystem $source_path/.sdk/vss"
3583           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
3584           ;;
3585     *)    vss_win32_include="-isystem $vss_win32_sdk"
3586   esac
3587   cat > $TMPC << EOF
3588 #define __MIDL_user_allocate_free_DEFINED__
3589 #include <inc/win2003/vss.h>
3590 int main(void) { return VSS_CTX_BACKUP; }
3591 EOF
3592   if compile_prog "$vss_win32_include" "" ; then
3593     guest_agent_with_vss="yes"
3594     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
3595     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
3596     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
3597   else
3598     if test "$vss_win32_sdk" != "" ; then
3599       echo "ERROR: Please download and install Microsoft VSS SDK:"
3600       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
3601       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
3602       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
3603       echo "ERROR: The headers are extracted in the directory \`inc'."
3604       feature_not_found "VSS support"
3605     fi
3606     guest_agent_with_vss="no"
3607   fi
3608 fi
3609
3610 ##########################################
3611 # lookup Windows platform SDK (if not specified)
3612 # The SDK is needed only to build .tlb (type library) file of guest agent
3613 # VSS provider from the source. It is usually unnecessary because the
3614 # pre-compiled .tlb file is included.
3615
3616 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
3617         test "$guest_agent_with_vss" = "yes" ; then
3618   if test -z "$win_sdk"; then
3619     programfiles="$PROGRAMFILES"
3620     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
3621     if test -n "$programfiles"; then
3622       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
3623     else
3624       feature_not_found "Windows SDK"
3625     fi
3626   elif test "$win_sdk" = "no"; then
3627     win_sdk=""
3628   fi
3629 fi
3630
3631 ##########################################
3632 # check if mingw environment provides a recent ntddscsi.h
3633 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
3634   cat > $TMPC << EOF
3635 #include <windows.h>
3636 #include <ntddscsi.h>
3637 int main(void) {
3638 #if !defined(IOCTL_SCSI_GET_ADDRESS)
3639 #error Missing required ioctl definitions
3640 #endif
3641   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
3642   return addr.Lun;
3643 }
3644 EOF
3645   if compile_prog "" "" ; then
3646     guest_agent_ntddscsi=yes
3647     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
3648   fi
3649 fi
3650
3651 ##########################################
3652 # capstone
3653
3654 case "$capstone" in
3655   auto | enabled | internal)
3656     # Simpler to always update submodule, even if not needed.
3657     git_submodules="${git_submodules} capstone"
3658     ;;
3659 esac
3660
3661 ##########################################
3662 # check if we have posix_syslog
3663
3664 posix_syslog=no
3665 cat > $TMPC << EOF
3666 #include <syslog.h>
3667 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
3668 EOF
3669 if compile_prog "" "" ; then
3670     posix_syslog=yes
3671 fi
3672
3673 ##########################################
3674 # check if trace backend exists
3675
3676 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
3677 if test "$?" -ne 0 ; then
3678   error_exit "invalid trace backends" \
3679       "Please choose supported trace backends."
3680 fi
3681
3682 ##########################################
3683 # For 'ust' backend, test if ust headers are present
3684 if have_backend "ust"; then
3685   cat > $TMPC << EOF
3686 #include <lttng/tracepoint.h>
3687 int main(void) { return 0; }
3688 EOF
3689   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
3690     if $pkg_config lttng-ust --exists; then
3691       lttng_ust_libs=$($pkg_config --libs lttng-ust)
3692     else
3693       lttng_ust_libs="-llttng-ust -ldl"
3694     fi
3695     if $pkg_config liburcu-bp --exists; then
3696       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
3697     else
3698       urcu_bp_libs="-lurcu-bp"
3699     fi
3700   else
3701     error_exit "Trace backend 'ust' missing lttng-ust header files"
3702   fi
3703 fi
3704
3705 ##########################################
3706 # For 'dtrace' backend, test if 'dtrace' command is present
3707 if have_backend "dtrace"; then
3708   if ! has 'dtrace' ; then
3709     error_exit "dtrace command is not found in PATH $PATH"
3710   fi
3711   trace_backend_stap="no"
3712   if has 'stap' ; then
3713     trace_backend_stap="yes"
3714
3715     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
3716     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
3717     # instead. QEMU --enable-modules depends on this because the SystemTap
3718     # semaphores are linked into the main binary and not the module's shared
3719     # object.
3720     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
3721   fi
3722 fi
3723
3724 ##########################################
3725 # check and set a backend for coroutine
3726
3727 # We prefer ucontext, but it's not always possible. The fallback
3728 # is sigcontext. On Windows the only valid backend is the Windows
3729 # specific one.
3730
3731 ucontext_works=no
3732 if test "$darwin" != "yes"; then
3733   cat > $TMPC << EOF
3734 #include <ucontext.h>
3735 #ifdef __stub_makecontext
3736 #error Ignoring glibc stub makecontext which will always fail
3737 #endif
3738 int main(void) { makecontext(0, 0, 0); return 0; }
3739 EOF
3740   if compile_prog "" "" ; then
3741     ucontext_works=yes
3742   fi
3743 fi
3744
3745 if test "$coroutine" = ""; then
3746   if test "$mingw32" = "yes"; then
3747     coroutine=win32
3748   elif test "$ucontext_works" = "yes"; then
3749     coroutine=ucontext
3750   else
3751     coroutine=sigaltstack
3752   fi
3753 else
3754   case $coroutine in
3755   windows)
3756     if test "$mingw32" != "yes"; then
3757       error_exit "'windows' coroutine backend only valid for Windows"
3758     fi
3759     # Unfortunately the user visible backend name doesn't match the
3760     # coroutine-*.c filename for this case, so we have to adjust it here.
3761     coroutine=win32
3762     ;;
3763   ucontext)
3764     if test "$ucontext_works" != "yes"; then
3765       feature_not_found "ucontext"
3766     fi
3767     ;;
3768   sigaltstack)
3769     if test "$mingw32" = "yes"; then
3770       error_exit "only the 'windows' coroutine backend is valid for Windows"
3771     fi
3772     ;;
3773   *)
3774     error_exit "unknown coroutine backend $coroutine"
3775     ;;
3776   esac
3777 fi
3778
3779 if test "$coroutine_pool" = ""; then
3780   coroutine_pool=yes
3781 fi
3782
3783 if test "$debug_stack_usage" = "yes"; then
3784   if test "$coroutine_pool" = "yes"; then
3785     echo "WARN: disabling coroutine pool for stack usage debugging"
3786     coroutine_pool=no
3787   fi
3788 fi
3789
3790 ##################################################
3791 # SafeStack
3792
3793
3794 if test "$safe_stack" = "yes"; then
3795 cat > $TMPC << EOF
3796 int main(int argc, char *argv[])
3797 {
3798 #if ! __has_feature(safe_stack)
3799 #error SafeStack Disabled
3800 #endif
3801     return 0;
3802 }
3803 EOF
3804   flag="-fsanitize=safe-stack"
3805   # Check that safe-stack is supported and enabled.
3806   if compile_prog "-Werror $flag" "$flag"; then
3807     # Flag needed both at compilation and at linking
3808     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
3809     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
3810   else
3811     error_exit "SafeStack not supported by your compiler"
3812   fi
3813   if test "$coroutine" != "ucontext"; then
3814     error_exit "SafeStack is only supported by the coroutine backend ucontext"
3815   fi
3816 else
3817 cat > $TMPC << EOF
3818 int main(int argc, char *argv[])
3819 {
3820 #if defined(__has_feature)
3821 #if __has_feature(safe_stack)
3822 #error SafeStack Enabled
3823 #endif
3824 #endif
3825     return 0;
3826 }
3827 EOF
3828 if test "$safe_stack" = "no"; then
3829   # Make sure that safe-stack is disabled
3830   if ! compile_prog "-Werror" ""; then
3831     # SafeStack was already enabled, try to explicitly remove the feature
3832     flag="-fno-sanitize=safe-stack"
3833     if ! compile_prog "-Werror $flag" "$flag"; then
3834       error_exit "Configure cannot disable SafeStack"
3835     fi
3836     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
3837     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
3838   fi
3839 else # "$safe_stack" = ""
3840   # Set safe_stack to yes or no based on pre-existing flags
3841   if compile_prog "-Werror" ""; then
3842     safe_stack="no"
3843   else
3844     safe_stack="yes"
3845     if test "$coroutine" != "ucontext"; then
3846       error_exit "SafeStack is only supported by the coroutine backend ucontext"
3847     fi
3848   fi
3849 fi
3850 fi
3851
3852 ##########################################
3853 # check if we have open_by_handle_at
3854
3855 open_by_handle_at=no
3856 cat > $TMPC << EOF
3857 #include <fcntl.h>
3858 #if !defined(AT_EMPTY_PATH)
3859 # error missing definition
3860 #else
3861 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
3862 #endif
3863 EOF
3864 if compile_prog "" "" ; then
3865     open_by_handle_at=yes
3866 fi
3867
3868 ########################################
3869 # check if we have linux/magic.h
3870
3871 linux_magic_h=no
3872 cat > $TMPC << EOF
3873 #include <linux/magic.h>
3874 int main(void) {
3875   return 0;
3876 }
3877 EOF
3878 if compile_prog "" "" ; then
3879     linux_magic_h=yes
3880 fi
3881
3882 ########################################
3883 # check if we have valgrind/valgrind.h
3884
3885 valgrind_h=no
3886 cat > $TMPC << EOF
3887 #include <valgrind/valgrind.h>
3888 int main(void) {
3889   return 0;
3890 }
3891 EOF
3892 if compile_prog "" "" ; then
3893     valgrind_h=yes
3894 fi
3895
3896 ########################################
3897 # check if environ is declared
3898
3899 has_environ=no
3900 cat > $TMPC << EOF
3901 #include <unistd.h>
3902 int main(void) {
3903     environ = 0;
3904     return 0;
3905 }
3906 EOF
3907 if compile_prog "" "" ; then
3908     has_environ=yes
3909 fi
3910
3911 ########################################
3912 # check if cpuid.h is usable.
3913
3914 cat > $TMPC << EOF
3915 #include <cpuid.h>
3916 int main(void) {
3917     unsigned a, b, c, d;
3918     int max = __get_cpuid_max(0, 0);
3919
3920     if (max >= 1) {
3921         __cpuid(1, a, b, c, d);
3922     }
3923
3924     if (max >= 7) {
3925         __cpuid_count(7, 0, a, b, c, d);
3926     }
3927
3928     return 0;
3929 }
3930 EOF
3931 if compile_prog "" "" ; then
3932     cpuid_h=yes
3933 fi
3934
3935 ##########################################
3936 # avx2 optimization requirement check
3937 #
3938 # There is no point enabling this if cpuid.h is not usable,
3939 # since we won't be able to select the new routines.
3940
3941 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
3942   cat > $TMPC << EOF
3943 #pragma GCC push_options
3944 #pragma GCC target("avx2")
3945 #include <cpuid.h>
3946 #include <immintrin.h>
3947 static int bar(void *a) {
3948     __m256i x = *(__m256i *)a;
3949     return _mm256_testz_si256(x, x);
3950 }
3951 int main(int argc, char *argv[]) { return bar(argv[0]); }
3952 EOF
3953   if compile_object "" ; then
3954     avx2_opt="yes"
3955   else
3956     avx2_opt="no"
3957   fi
3958 fi
3959
3960 ##########################################
3961 # avx512f optimization requirement check
3962 #
3963 # There is no point enabling this if cpuid.h is not usable,
3964 # since we won't be able to select the new routines.
3965 # by default, it is turned off.
3966 # if user explicitly want to enable it, check environment
3967
3968 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
3969   cat > $TMPC << EOF
3970 #pragma GCC push_options
3971 #pragma GCC target("avx512f")
3972 #include <cpuid.h>
3973 #include <immintrin.h>
3974 static int bar(void *a) {
3975     __m512i x = *(__m512i *)a;
3976     return _mm512_test_epi64_mask(x, x);
3977 }
3978 int main(int argc, char *argv[])
3979 {
3980         return bar(argv[0]);
3981 }
3982 EOF
3983   if ! compile_object "" ; then
3984     avx512f_opt="no"
3985   fi
3986 else
3987   avx512f_opt="no"
3988 fi
3989
3990 ########################################
3991 # check if __[u]int128_t is usable.
3992
3993 int128=no
3994 cat > $TMPC << EOF
3995 __int128_t a;
3996 __uint128_t b;
3997 int main (void) {
3998   a = a + b;
3999   b = a * b;
4000   a = a * a;
4001   return 0;
4002 }
4003 EOF
4004 if compile_prog "" "" ; then
4005     int128=yes
4006 fi
4007
4008 #########################################
4009 # See if 128-bit atomic operations are supported.
4010
4011 atomic128=no
4012 if test "$int128" = "yes"; then
4013   cat > $TMPC << EOF
4014 int main(void)
4015 {
4016   unsigned __int128 x = 0, y = 0;
4017   y = __atomic_load(&x, 0);
4018   __atomic_store(&x, y, 0);
4019   __atomic_compare_exchange(&x, &y, x, 0, 0, 0);
4020   return 0;
4021 }
4022 EOF
4023   if compile_prog "" "" ; then
4024     atomic128=yes
4025   fi
4026 fi
4027
4028 cmpxchg128=no
4029 if test "$int128" = yes && test "$atomic128" = no; then
4030   cat > $TMPC << EOF
4031 int main(void)
4032 {
4033   unsigned __int128 x = 0, y = 0;
4034   __sync_val_compare_and_swap_16(&x, y, x);
4035   return 0;
4036 }
4037 EOF
4038   if compile_prog "" "" ; then
4039     cmpxchg128=yes
4040   fi
4041 fi
4042
4043 #########################################
4044 # See if 64-bit atomic operations are supported.
4045 # Note that without __atomic builtins, we can only
4046 # assume atomic loads/stores max at pointer size.
4047
4048 cat > $TMPC << EOF
4049 #include <stdint.h>
4050 int main(void)
4051 {
4052   uint64_t x = 0, y = 0;
4053 #ifdef __ATOMIC_RELAXED
4054   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
4055   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
4056   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
4057   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
4058   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
4059 #else
4060   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
4061   __sync_lock_test_and_set(&x, y);
4062   __sync_val_compare_and_swap(&x, y, 0);
4063   __sync_fetch_and_add(&x, y);
4064 #endif
4065   return 0;
4066 }
4067 EOF
4068 if compile_prog "" "" ; then
4069   atomic64=yes
4070 fi
4071
4072 #########################################
4073 # See if --dynamic-list is supported by the linker
4074 ld_dynamic_list="no"
4075 if test "$static" = "no" ; then
4076     cat > $TMPTXT <<EOF
4077 {
4078   foo;
4079 };
4080 EOF
4081
4082     cat > $TMPC <<EOF
4083 #include <stdio.h>
4084 void foo(void);
4085
4086 void foo(void)
4087 {
4088   printf("foo\n");
4089 }
4090
4091 int main(void)
4092 {
4093   foo();
4094   return 0;
4095 }
4096 EOF
4097
4098     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
4099         ld_dynamic_list="yes"
4100     fi
4101 fi
4102
4103 #########################################
4104 # See if -exported_symbols_list is supported by the linker
4105
4106 ld_exported_symbols_list="no"
4107 if test "$static" = "no" ; then
4108     cat > $TMPTXT <<EOF
4109   _foo
4110 EOF
4111
4112     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
4113         ld_exported_symbols_list="yes"
4114     fi
4115 fi
4116
4117 if  test "$plugins" = "yes" &&
4118     test "$ld_dynamic_list" = "no" &&
4119     test "$ld_exported_symbols_list" = "no" ; then
4120   error_exit \
4121       "Plugin support requires dynamic linking and specifying a set of symbols " \
4122       "that are exported to plugins. Unfortunately your linker doesn't " \
4123       "support the flag (--dynamic-list or -exported_symbols_list) used " \
4124       "for this purpose. You can't build with --static."
4125 fi
4126
4127 ########################################
4128 # check if getauxval is available.
4129
4130 getauxval=no
4131 cat > $TMPC << EOF
4132 #include <sys/auxv.h>
4133 int main(void) {
4134   return getauxval(AT_HWCAP) == 0;
4135 }
4136 EOF
4137 if compile_prog "" "" ; then
4138     getauxval=yes
4139 fi
4140
4141 ########################################
4142 # check if ccache is interfering with
4143 # semantic analysis of macros
4144
4145 unset CCACHE_CPP2
4146 ccache_cpp2=no
4147 cat > $TMPC << EOF
4148 static const int Z = 1;
4149 #define fn() ({ Z; })
4150 #define TAUT(X) ((X) == Z)
4151 #define PAREN(X, Y) (X == Y)
4152 #define ID(X) (X)
4153 int main(int argc, char *argv[])
4154 {
4155     int x = 0, y = 0;
4156     x = ID(x);
4157     x = fn();
4158     fn();
4159     if (PAREN(x, y)) return 0;
4160     if (TAUT(Z)) return 0;
4161     return 0;
4162 }
4163 EOF
4164
4165 if ! compile_object "-Werror"; then
4166     ccache_cpp2=yes
4167 fi
4168
4169 #################################################
4170 # clang does not support glibc + FORTIFY_SOURCE.
4171
4172 if test "$fortify_source" != "no"; then
4173   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
4174     fortify_source="no";
4175   elif test -n "$cxx" && has $cxx &&
4176        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
4177     fortify_source="no";
4178   else
4179     fortify_source="yes"
4180   fi
4181 fi
4182
4183 ##########################################
4184 # check if struct fsxattr is available via linux/fs.h
4185
4186 have_fsxattr=no
4187 cat > $TMPC << EOF
4188 #include <linux/fs.h>
4189 struct fsxattr foo;
4190 int main(void) {
4191   return 0;
4192 }
4193 EOF
4194 if compile_prog "" "" ; then
4195     have_fsxattr=yes
4196 fi
4197
4198 ##########################################
4199 # check for usable membarrier system call
4200 if test "$membarrier" = "yes"; then
4201     have_membarrier=no
4202     if test "$mingw32" = "yes" ; then
4203         have_membarrier=yes
4204     elif test "$linux" = "yes" ; then
4205         cat > $TMPC << EOF
4206     #include <linux/membarrier.h>
4207     #include <sys/syscall.h>
4208     #include <unistd.h>
4209     #include <stdlib.h>
4210     int main(void) {
4211         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
4212         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
4213         exit(0);
4214     }
4215 EOF
4216         if compile_prog "" "" ; then
4217             have_membarrier=yes
4218         fi
4219     fi
4220     if test "$have_membarrier" = "no"; then
4221       feature_not_found "membarrier" "membarrier system call not available"
4222     fi
4223 else
4224     # Do not enable it by default even for Mingw32, because it doesn't
4225     # work on Wine.
4226     membarrier=no
4227 fi
4228
4229 ##########################################
4230 # check for usable AF_VSOCK environment
4231 have_af_vsock=no
4232 cat > $TMPC << EOF
4233 #include <errno.h>
4234 #include <sys/types.h>
4235 #include <sys/socket.h>
4236 #if !defined(AF_VSOCK)
4237 # error missing AF_VSOCK flag
4238 #endif
4239 #include <linux/vm_sockets.h>
4240 int main(void) {
4241     int sock, ret;
4242     struct sockaddr_vm svm;
4243     socklen_t len = sizeof(svm);
4244     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
4245     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
4246     if ((ret == -1) && (errno == ENOTCONN)) {
4247         return 0;
4248     }
4249     return -1;
4250 }
4251 EOF
4252 if compile_prog "" "" ; then
4253     have_af_vsock=yes
4254 fi
4255
4256 ##########################################
4257 # check for usable AF_ALG environment
4258 have_afalg=no
4259 cat > $TMPC << EOF
4260 #include <errno.h>
4261 #include <sys/types.h>
4262 #include <sys/socket.h>
4263 #include <linux/if_alg.h>
4264 int main(void) {
4265     int sock;
4266     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
4267     return sock;
4268 }
4269 EOF
4270 if compile_prog "" "" ; then
4271     have_afalg=yes
4272 fi
4273 if test "$crypto_afalg" = "yes"
4274 then
4275     if test "$have_afalg" != "yes"
4276     then
4277         error_exit "AF_ALG requested but could not be detected"
4278     fi
4279 fi
4280
4281
4282 ##########################################
4283 # checks for sanitizers
4284
4285 have_asan=no
4286 have_ubsan=no
4287 have_asan_iface_h=no
4288 have_asan_iface_fiber=no
4289
4290 if test "$sanitizers" = "yes" ; then
4291   write_c_skeleton
4292   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
4293       have_asan=yes
4294   fi
4295
4296   # we could use a simple skeleton for flags checks, but this also
4297   # detect the static linking issue of ubsan, see also:
4298   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
4299   cat > $TMPC << EOF
4300 #include <stdlib.h>
4301 int main(void) {
4302     void *tmp = malloc(10);
4303     if (tmp != NULL) {
4304         return *(int *)(tmp + 2);
4305     }
4306     return 1;
4307 }
4308 EOF
4309   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
4310       have_ubsan=yes
4311   fi
4312
4313   if check_include "sanitizer/asan_interface.h" ; then
4314       have_asan_iface_h=yes
4315   fi
4316
4317   cat > $TMPC << EOF
4318 #include <sanitizer/asan_interface.h>
4319 int main(void) {
4320   __sanitizer_start_switch_fiber(0, 0, 0);
4321   return 0;
4322 }
4323 EOF
4324   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
4325       have_asan_iface_fiber=yes
4326   fi
4327 fi
4328
4329 ##########################################
4330 # checks for fuzzer
4331 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
4332   write_c_fuzzer_skeleton
4333   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
4334     have_fuzzer=yes
4335   else
4336     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
4337     exit 1
4338   fi
4339 fi
4340
4341 # Thread sanitizer is, for now, much noisier than the other sanitizers;
4342 # keep it separate until that is not the case.
4343 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
4344   error_exit "TSAN is not supported with other sanitiziers."
4345 fi
4346 have_tsan=no
4347 have_tsan_iface_fiber=no
4348 if test "$tsan" = "yes" ; then
4349   write_c_skeleton
4350   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
4351       have_tsan=yes
4352   fi
4353   cat > $TMPC << EOF
4354 #include <sanitizer/tsan_interface.h>
4355 int main(void) {
4356   __tsan_create_fiber(0);
4357   return 0;
4358 }
4359 EOF
4360   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
4361       have_tsan_iface_fiber=yes
4362   fi
4363 fi
4364
4365 ##########################################
4366 # check for slirp
4367
4368 case "$slirp" in
4369   auto | enabled | internal)
4370     # Simpler to always update submodule, even if not needed.
4371     git_submodules="${git_submodules} slirp"
4372     ;;
4373 esac
4374
4375 # Check for slirp smbd dupport
4376 : ${smbd=${SMBD-/usr/sbin/smbd}}
4377 if test "$slirp_smbd" != "no" ; then
4378   if test "$mingw32" = "yes" ; then
4379     if test "$slirp_smbd" = "yes" ; then
4380       error_exit "Host smbd not supported on this platform."
4381     fi
4382     slirp_smbd=no
4383   else
4384     slirp_smbd=yes
4385   fi
4386 fi
4387
4388 ##########################################
4389 # check for usable __NR_keyctl syscall
4390
4391 if test "$linux" = "yes" ; then
4392
4393     have_keyring=no
4394     cat > $TMPC << EOF
4395 #include <errno.h>
4396 #include <asm/unistd.h>
4397 #include <linux/keyctl.h>
4398 #include <unistd.h>
4399 int main(void) {
4400     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
4401 }
4402 EOF
4403     if compile_prog "" "" ; then
4404         have_keyring=yes
4405     fi
4406 fi
4407 if test "$secret_keyring" != "no"
4408 then
4409     if test "$have_keyring" = "yes"
4410     then
4411         secret_keyring=yes
4412     else
4413         if test "$secret_keyring" = "yes"
4414         then
4415             error_exit "syscall __NR_keyctl requested, \
4416 but not implemented on your system"
4417         else
4418             secret_keyring=no
4419         fi
4420     fi
4421 fi
4422
4423 ##########################################
4424 # End of CC checks
4425 # After here, no more $cc or $ld runs
4426
4427 write_c_skeleton
4428
4429 if test "$gcov" = "yes" ; then
4430   :
4431 elif test "$fortify_source" = "yes" ; then
4432   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
4433   debug=no
4434 fi
4435
4436 case "$ARCH" in
4437 alpha)
4438   # Ensure there's only a single GP
4439   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
4440 ;;
4441 esac
4442
4443 if test "$gprof" = "yes" ; then
4444   QEMU_CFLAGS="-p $QEMU_CFLAGS"
4445   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
4446 fi
4447
4448 if test "$have_asan" = "yes"; then
4449   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
4450   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
4451   if test "$have_asan_iface_h" = "no" ; then
4452       echo "ASAN build enabled, but ASAN header missing." \
4453            "Without code annotation, the report may be inferior."
4454   elif test "$have_asan_iface_fiber" = "no" ; then
4455       echo "ASAN build enabled, but ASAN header is too old." \
4456            "Without code annotation, the report may be inferior."
4457   fi
4458 fi
4459 if test "$have_tsan" = "yes" ; then
4460   if test "$have_tsan_iface_fiber" = "yes" ; then
4461     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
4462     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
4463   else
4464     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
4465   fi
4466 elif test "$tsan" = "yes" ; then
4467   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
4468 fi
4469 if test "$have_ubsan" = "yes"; then
4470   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
4471   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
4472 fi
4473
4474 ##########################################
4475
4476 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
4477 if test "$solaris" = "no" && test "$tsan" = "no"; then
4478     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
4479         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
4480     fi
4481 fi
4482
4483 # Use ASLR, no-SEH and DEP if available
4484 if test "$mingw32" = "yes" ; then
4485     flags="--no-seh --nxcompat"
4486
4487     # Disable ASLR for debug builds to allow debugging with gdb
4488     if test "$debug" = "no" ; then
4489         flags="--dynamicbase $flags"
4490     fi
4491
4492     for flag in $flags; do
4493         if ld_has $flag ; then
4494             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
4495         fi
4496     done
4497 fi
4498
4499 # Probe for guest agent support/options
4500
4501 if [ "$guest_agent" != "no" ]; then
4502   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
4503       guest_agent=no
4504   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
4505       guest_agent=yes
4506   elif [ "$guest_agent" != yes ]; then
4507       guest_agent=no
4508   else
4509       error_exit "Guest agent is not supported on this platform"
4510   fi
4511 fi
4512
4513 # Guest agent Windows MSI package
4514
4515 if test "$QEMU_GA_MANUFACTURER" = ""; then
4516   QEMU_GA_MANUFACTURER=QEMU
4517 fi
4518 if test "$QEMU_GA_DISTRO" = ""; then
4519   QEMU_GA_DISTRO=Linux
4520 fi
4521 if test "$QEMU_GA_VERSION" = ""; then
4522     QEMU_GA_VERSION=$(cat $source_path/VERSION)
4523 fi
4524
4525 QEMU_GA_MSI_MINGW_DLL_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
4526
4527 # Mac OS X ships with a broken assembler
4528 roms=
4529 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
4530         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
4531         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
4532     # Different host OS linkers have different ideas about the name of the ELF
4533     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
4534     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
4535     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
4536         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
4537             ld_i386_emulation="$emu"
4538             roms="optionrom"
4539             break
4540         fi
4541     done
4542 fi
4543
4544 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
4545 # or -march=z10 (which is the lowest architecture level that Clang supports)
4546 if test "$cpu" = "s390x" ; then
4547   write_c_skeleton
4548   compile_prog "-march=z900" ""
4549   has_z900=$?
4550   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
4551     if [ $has_z900 != 0 ]; then
4552       echo "WARNING: Your compiler does not support the z900!"
4553       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
4554     fi
4555     roms="$roms s390-ccw"
4556     # SLOF is required for building the s390-ccw firmware on s390x,
4557     # since it is using the libnet code from SLOF for network booting.
4558     git_submodules="${git_submodules} roms/SLOF"
4559   fi
4560 fi
4561
4562 # Check that the C++ compiler exists and works with the C compiler.
4563 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
4564 if has $cxx; then
4565     cat > $TMPC <<EOF
4566 int c_function(void);
4567 int main(void) { return c_function(); }
4568 EOF
4569
4570     compile_object
4571
4572     cat > $TMPCXX <<EOF
4573 extern "C" {
4574    int c_function(void);
4575 }
4576 int c_function(void) { return 42; }
4577 EOF
4578
4579     update_cxxflags
4580
4581     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
4582         # C++ compiler $cxx works ok with C compiler $cc
4583         :
4584     else
4585         echo "C++ compiler $cxx does not work with C compiler $cc"
4586         echo "Disabling C++ specific optional code"
4587         cxx=
4588     fi
4589 else
4590     echo "No C++ compiler available; disabling C++ specific optional code"
4591     cxx=
4592 fi
4593
4594 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
4595     exit 1
4596 fi
4597
4598 config_host_mak="config-host.mak"
4599
4600 echo "# Automatically generated by configure - do not modify" > $config_host_mak
4601 echo >> $config_host_mak
4602
4603 echo all: >> $config_host_mak
4604 echo "GIT=$git" >> $config_host_mak
4605 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
4606 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
4607
4608 echo "ARCH=$ARCH" >> $config_host_mak
4609
4610 if test "$debug_tcg" = "yes" ; then
4611   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
4612 fi
4613 if test "$strip_opt" = "yes" ; then
4614   echo "STRIP=${strip}" >> $config_host_mak
4615 fi
4616 if test "$bigendian" = "yes" ; then
4617   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
4618 fi
4619 if test "$mingw32" = "yes" ; then
4620   echo "CONFIG_WIN32=y" >> $config_host_mak
4621   if test "$guest_agent_with_vss" = "yes" ; then
4622     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
4623     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
4624     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
4625   fi
4626   if test "$guest_agent_ntddscsi" = "yes" ; then
4627     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
4628   fi
4629   echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
4630   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
4631   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
4632   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
4633 else
4634   echo "CONFIG_POSIX=y" >> $config_host_mak
4635 fi
4636
4637 if test "$linux" = "yes" ; then
4638   echo "CONFIG_LINUX=y" >> $config_host_mak
4639 fi
4640
4641 if test "$darwin" = "yes" ; then
4642   echo "CONFIG_DARWIN=y" >> $config_host_mak
4643 fi
4644
4645 if test "$solaris" = "yes" ; then
4646   echo "CONFIG_SOLARIS=y" >> $config_host_mak
4647 fi
4648 if test "$haiku" = "yes" ; then
4649   echo "CONFIG_HAIKU=y" >> $config_host_mak
4650 fi
4651 if test "$static" = "yes" ; then
4652   echo "CONFIG_STATIC=y" >> $config_host_mak
4653 fi
4654 if test "$profiler" = "yes" ; then
4655   echo "CONFIG_PROFILER=y" >> $config_host_mak
4656 fi
4657 if test "$want_tools" = "yes" ; then
4658   echo "CONFIG_TOOLS=y" >> $config_host_mak
4659 fi
4660 if test "$guest_agent" = "yes" ; then
4661   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
4662 fi
4663 if test "$slirp_smbd" = "yes" ; then
4664   echo "CONFIG_SLIRP_SMBD=y" >> $config_host_mak
4665   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
4666 fi
4667 if test "$vde" = "yes" ; then
4668   echo "CONFIG_VDE=y" >> $config_host_mak
4669   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
4670 fi
4671 if test "$netmap" = "yes" ; then
4672   echo "CONFIG_NETMAP=y" >> $config_host_mak
4673 fi
4674 if test "$l2tpv3" = "yes" ; then
4675   echo "CONFIG_L2TPV3=y" >> $config_host_mak
4676 fi
4677 if test "$gprof" = "yes" ; then
4678   echo "CONFIG_GPROF=y" >> $config_host_mak
4679 fi
4680 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
4681 for drv in $audio_drv_list; do
4682     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
4683     echo "$def=y" >> $config_host_mak
4684 done
4685 if test "$alsa" = "yes" ; then
4686     echo "CONFIG_ALSA=y" >> $config_host_mak
4687 fi
4688 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
4689 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
4690 if test "$libpulse" = "yes" ; then
4691     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
4692 fi
4693 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
4694 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
4695 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
4696 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
4697 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
4698 if test "$libjack" = "yes" ; then
4699     echo "CONFIG_LIBJACK=y" >> $config_host_mak
4700 fi
4701 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
4702 if test "$audio_win_int" = "yes" ; then
4703   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
4704 fi
4705 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
4706 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
4707 if test "$xfs" = "yes" ; then
4708   echo "CONFIG_XFS=y" >> $config_host_mak
4709 fi
4710 qemu_version=$(head $source_path/VERSION)
4711 echo "PKGVERSION=$pkgversion" >>$config_host_mak
4712 echo "SRC_PATH=$source_path" >> $config_host_mak
4713 echo "TARGET_DIRS=$target_list" >> $config_host_mak
4714 if test "$modules" = "yes"; then
4715   # $shacmd can generate a hash started with digit, which the compiler doesn't
4716   # like as an symbol. So prefix it with an underscore
4717   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
4718   echo "CONFIG_MODULES=y" >> $config_host_mak
4719 fi
4720 if test "$module_upgrades" = "yes"; then
4721   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
4722 fi
4723 if test "$pipe2" = "yes" ; then
4724   echo "CONFIG_PIPE2=y" >> $config_host_mak
4725 fi
4726 if test "$accept4" = "yes" ; then
4727   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
4728 fi
4729 if test "$splice" = "yes" ; then
4730   echo "CONFIG_SPLICE=y" >> $config_host_mak
4731 fi
4732 if test "$have_usbfs" = "yes" ; then
4733   echo "CONFIG_USBFS=y" >> $config_host_mak
4734 fi
4735 if test "$inotify" = "yes" ; then
4736   echo "CONFIG_INOTIFY=y" >> $config_host_mak
4737 fi
4738 if test "$inotify1" = "yes" ; then
4739   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
4740 fi
4741 if test "$gio" = "yes" ; then
4742     echo "CONFIG_GIO=y" >> $config_host_mak
4743     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
4744     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
4745 fi
4746 if test "$gdbus_codegen" != "" ; then
4747     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
4748 fi
4749 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
4750
4751 # Work around a system header bug with some kernel/XFS header
4752 # versions where they both try to define 'struct fsxattr':
4753 # xfs headers will not try to redefine structs from linux headers
4754 # if this macro is set.
4755 if test "$have_fsxattr" = "yes" ; then
4756     echo "HAVE_FSXATTR=y" >> $config_host_mak
4757 fi
4758 if test "$xen" = "enabled" ; then
4759   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
4760   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
4761   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
4762   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
4763 fi
4764 if test "$linux_aio" = "yes" ; then
4765   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
4766 fi
4767 if test "$vhost_scsi" = "yes" ; then
4768   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
4769 fi
4770 if test "$vhost_net" = "yes" ; then
4771   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
4772 fi
4773 if test "$vhost_net_user" = "yes" ; then
4774   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
4775 fi
4776 if test "$vhost_net_vdpa" = "yes" ; then
4777   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
4778 fi
4779 if test "$vhost_crypto" = "yes" ; then
4780   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
4781 fi
4782 if test "$vhost_vsock" = "yes" ; then
4783   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
4784   if test "$vhost_user" = "yes" ; then
4785     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
4786   fi
4787 fi
4788 if test "$vhost_kernel" = "yes" ; then
4789   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
4790 fi
4791 if test "$vhost_user" = "yes" ; then
4792   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
4793 fi
4794 if test "$vhost_vdpa" = "yes" ; then
4795   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
4796 fi
4797 if test "$vhost_user_fs" = "yes" ; then
4798   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
4799 fi
4800 if test "$iovec" = "yes" ; then
4801   echo "CONFIG_IOVEC=y" >> $config_host_mak
4802 fi
4803 if test "$membarrier" = "yes" ; then
4804   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
4805 fi
4806 if test "$tcg" = "enabled" -a "$tcg_interpreter" = "true" ; then
4807   echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
4808 fi
4809
4810 if test "$spice_protocol" = "yes" ; then
4811   echo "CONFIG_SPICE_PROTOCOL=y" >> $config_host_mak
4812   echo "SPICE_PROTOCOL_CFLAGS=$spice_protocol_cflags" >> $config_host_mak
4813 fi
4814 if test "$spice" = "yes" ; then
4815   echo "CONFIG_SPICE=y" >> $config_host_mak
4816   echo "SPICE_CFLAGS=$spice_cflags $spice_protocol_cflags" >> $config_host_mak
4817   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
4818 fi
4819
4820 if test "$opengl" = "yes" ; then
4821   echo "CONFIG_OPENGL=y" >> $config_host_mak
4822   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
4823   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
4824 fi
4825
4826 if test "$gbm" = "yes" ; then
4827     echo "CONFIG_GBM=y" >> $config_host_mak
4828     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
4829     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
4830 fi
4831
4832
4833 if test "$avx2_opt" = "yes" ; then
4834   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
4835 fi
4836
4837 if test "$avx512f_opt" = "yes" ; then
4838   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
4839 fi
4840
4841 # XXX: suppress that
4842 if [ "$bsd" = "yes" ] ; then
4843   echo "CONFIG_BSD=y" >> $config_host_mak
4844 fi
4845
4846 if test "$qom_cast_debug" = "yes" ; then
4847   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
4848 fi
4849
4850 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
4851 if test "$coroutine_pool" = "yes" ; then
4852   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
4853 else
4854   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
4855 fi
4856
4857 if test "$debug_stack_usage" = "yes" ; then
4858   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
4859 fi
4860
4861 if test "$crypto_afalg" = "yes" ; then
4862   echo "CONFIG_AF_ALG=y" >> $config_host_mak
4863 fi
4864
4865 if test "$open_by_handle_at" = "yes" ; then
4866   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
4867 fi
4868
4869 if test "$linux_magic_h" = "yes" ; then
4870   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
4871 fi
4872
4873 if test "$valgrind_h" = "yes" ; then
4874   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
4875 fi
4876
4877 if test "$have_asan_iface_fiber" = "yes" ; then
4878     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
4879 fi
4880
4881 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
4882     echo "CONFIG_TSAN=y" >> $config_host_mak
4883 fi
4884
4885 if test "$has_environ" = "yes" ; then
4886   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
4887 fi
4888
4889 if test "$cpuid_h" = "yes" ; then
4890   echo "CONFIG_CPUID_H=y" >> $config_host_mak
4891 fi
4892
4893 if test "$int128" = "yes" ; then
4894   echo "CONFIG_INT128=y" >> $config_host_mak
4895 fi
4896
4897 if test "$atomic128" = "yes" ; then
4898   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
4899 fi
4900
4901 if test "$cmpxchg128" = "yes" ; then
4902   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
4903 fi
4904
4905 if test "$atomic64" = "yes" ; then
4906   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
4907 fi
4908
4909 if test "$getauxval" = "yes" ; then
4910   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
4911 fi
4912
4913 if test "$libssh" = "yes" ; then
4914   echo "CONFIG_LIBSSH=y" >> $config_host_mak
4915   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
4916   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
4917 fi
4918
4919 if test "$live_block_migration" = "yes" ; then
4920   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
4921 fi
4922
4923 if test "$tpm" = "yes"; then
4924   echo 'CONFIG_TPM=y' >> $config_host_mak
4925 fi
4926
4927 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
4928 if have_backend "nop"; then
4929   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
4930 fi
4931 if have_backend "simple"; then
4932   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
4933   # Set the appropriate trace file.
4934   trace_file="\"$trace_file-\" FMT_pid"
4935 fi
4936 if have_backend "log"; then
4937   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
4938 fi
4939 if have_backend "ust"; then
4940   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
4941   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
4942   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
4943 fi
4944 if have_backend "dtrace"; then
4945   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
4946   if test "$trace_backend_stap" = "yes" ; then
4947     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
4948   fi
4949 fi
4950 if have_backend "ftrace"; then
4951   if test "$linux" = "yes" ; then
4952     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
4953   else
4954     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
4955   fi
4956 fi
4957 if have_backend "syslog"; then
4958   if test "$posix_syslog" = "yes" ; then
4959     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
4960   else
4961     feature_not_found "syslog(trace backend)" "syslog not available"
4962   fi
4963 fi
4964 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
4965
4966 if test "$rdma" = "yes" ; then
4967   echo "CONFIG_RDMA=y" >> $config_host_mak
4968   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
4969 fi
4970
4971 if test "$pvrdma" = "yes" ; then
4972   echo "CONFIG_PVRDMA=y" >> $config_host_mak
4973 fi
4974
4975 if test "$replication" = "yes" ; then
4976   echo "CONFIG_REPLICATION=y" >> $config_host_mak
4977 fi
4978
4979 if test "$have_af_vsock" = "yes" ; then
4980   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
4981 fi
4982
4983 if test "$debug_mutex" = "yes" ; then
4984   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
4985 fi
4986
4987 # Hold two types of flag:
4988 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
4989 #                                     a thread we have a handle to
4990 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
4991 #                                     platform
4992 if test "$pthread_setname_np_w_tid" = "yes" ; then
4993   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
4994   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
4995 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
4996   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
4997   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
4998 fi
4999
5000 if test "$libpmem" = "yes" ; then
5001   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
5002   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
5003   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
5004 fi
5005
5006 if test "$bochs" = "yes" ; then
5007   echo "CONFIG_BOCHS=y" >> $config_host_mak
5008 fi
5009 if test "$cloop" = "yes" ; then
5010   echo "CONFIG_CLOOP=y" >> $config_host_mak
5011 fi
5012 if test "$dmg" = "yes" ; then
5013   echo "CONFIG_DMG=y" >> $config_host_mak
5014 fi
5015 if test "$qcow1" = "yes" ; then
5016   echo "CONFIG_QCOW1=y" >> $config_host_mak
5017 fi
5018 if test "$vdi" = "yes" ; then
5019   echo "CONFIG_VDI=y" >> $config_host_mak
5020 fi
5021 if test "$vvfat" = "yes" ; then
5022   echo "CONFIG_VVFAT=y" >> $config_host_mak
5023 fi
5024 if test "$qed" = "yes" ; then
5025   echo "CONFIG_QED=y" >> $config_host_mak
5026 fi
5027 if test "$parallels" = "yes" ; then
5028   echo "CONFIG_PARALLELS=y" >> $config_host_mak
5029 fi
5030 if test "$have_mlockall" = "yes" ; then
5031   echo "HAVE_MLOCKALL=y" >> $config_host_mak
5032 fi
5033 if test "$fuzzing" = "yes" ; then
5034   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
5035   # needed CFLAGS have already been provided
5036   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
5037     # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
5038     # compiled code.
5039     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
5040     # To build non-fuzzer binaries with --enable-fuzzing, link everything with
5041     # fsanitize=fuzzer-no-link. Otherwise, the linker will be unable to bind
5042     # the fuzzer-related callbacks added by instrumentation.
5043     QEMU_LDFLAGS="$QEMU_LDFLAGS -fsanitize=fuzzer-no-link"
5044     # For the actual fuzzer binaries, we need to link against the libfuzzer
5045     # library. Provide the flags for doing this in FUZZ_EXE_LDFLAGS. The meson
5046     # rule for the fuzzer adds these to the link_args. They need to be
5047     # configurable, to support OSS-Fuzz
5048     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
5049   else
5050     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
5051   fi
5052 fi
5053
5054 if test "$plugins" = "yes" ; then
5055     echo "CONFIG_PLUGIN=y" >> $config_host_mak
5056     # Copy the export object list to the build dir
5057     if test "$ld_dynamic_list" = "yes" ; then
5058         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
5059         ld_symbols=qemu-plugins-ld.symbols
5060         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
5061     elif test "$ld_exported_symbols_list" = "yes" ; then
5062         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
5063         ld64_symbols=qemu-plugins-ld64.symbols
5064         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
5065         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
5066             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
5067     else
5068         error_exit \
5069             "If \$plugins=yes, either \$ld_dynamic_list or " \
5070             "\$ld_exported_symbols_list should have been set to 'yes'."
5071     fi
5072 fi
5073
5074 if test -n "$gdb_bin"; then
5075     gdb_version=$($gdb_bin --version | head -n 1)
5076     if version_ge ${gdb_version##* } 9.1; then
5077         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
5078     fi
5079 fi
5080
5081 if test "$secret_keyring" = "yes" ; then
5082   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
5083 fi
5084
5085 echo "ROMS=$roms" >> $config_host_mak
5086 echo "MAKE=$make" >> $config_host_mak
5087 echo "PYTHON=$python" >> $config_host_mak
5088 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
5089 echo "MESON=$meson" >> $config_host_mak
5090 echo "NINJA=$ninja" >> $config_host_mak
5091 echo "CC=$cc" >> $config_host_mak
5092 echo "HOST_CC=$host_cc" >> $config_host_mak
5093 if $iasl -h > /dev/null 2>&1; then
5094   echo "CONFIG_IASL=$iasl" >> $config_host_mak
5095 fi
5096 echo "CXX=$cxx" >> $config_host_mak
5097 echo "OBJCC=$objcc" >> $config_host_mak
5098 echo "AR=$ar" >> $config_host_mak
5099 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
5100 echo "AS=$as" >> $config_host_mak
5101 echo "CCAS=$ccas" >> $config_host_mak
5102 echo "CPP=$cpp" >> $config_host_mak
5103 echo "OBJCOPY=$objcopy" >> $config_host_mak
5104 echo "LD=$ld" >> $config_host_mak
5105 echo "RANLIB=$ranlib" >> $config_host_mak
5106 echo "NM=$nm" >> $config_host_mak
5107 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
5108 echo "WINDRES=$windres" >> $config_host_mak
5109 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
5110 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
5111 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
5112 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
5113 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
5114 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
5115 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
5116 echo "EXESUF=$EXESUF" >> $config_host_mak
5117 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
5118 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
5119 if test "$gcov" = "yes" ; then
5120   echo "CONFIG_GCOV=y" >> $config_host_mak
5121 fi
5122
5123 if test "$fuzzing" != "no"; then
5124     echo "CONFIG_FUZZ=y" >> $config_host_mak
5125 fi
5126 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
5127
5128 if test "$rng_none" = "yes"; then
5129   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
5130 fi
5131
5132 # use included Linux headers
5133 if test "$linux" = "yes" ; then
5134   mkdir -p linux-headers
5135   case "$cpu" in
5136   i386|x86_64|x32)
5137     linux_arch=x86
5138     ;;
5139   ppc|ppc64|ppc64le)
5140     linux_arch=powerpc
5141     ;;
5142   s390x)
5143     linux_arch=s390
5144     ;;
5145   aarch64)
5146     linux_arch=arm64
5147     ;;
5148   mips64)
5149     linux_arch=mips
5150     ;;
5151   *)
5152     # For most CPUs the kernel architecture name and QEMU CPU name match.
5153     linux_arch="$cpu"
5154     ;;
5155   esac
5156     # For non-KVM architectures we will not have asm headers
5157     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
5158       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
5159     fi
5160 fi
5161
5162 for target in $target_list; do
5163     target_dir="$target"
5164     target_name=$(echo $target | cut -d '-' -f 1)
5165     mkdir -p $target_dir
5166     case $target in
5167         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
5168         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
5169     esac
5170 done
5171
5172 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
5173 if test "$default_targets" = "yes"; then
5174   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
5175 fi
5176
5177 if test "$numa" = "yes"; then
5178   echo "CONFIG_NUMA=y" >> $config_host_mak
5179   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
5180 fi
5181
5182 if test "$ccache_cpp2" = "yes"; then
5183   echo "export CCACHE_CPP2=y" >> $config_host_mak
5184 fi
5185
5186 if test "$safe_stack" = "yes"; then
5187   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
5188 fi
5189
5190 # If we're using a separate build tree, set it up now.
5191 # DIRS are directories which we simply mkdir in the build tree;
5192 # LINKS are things to symlink back into the source tree
5193 # (these can be both files and directories).
5194 # Caution: do not add files or directories here using wildcards. This
5195 # will result in problems later if a new file matching the wildcard is
5196 # added to the source tree -- nothing will cause configure to be rerun
5197 # so the build tree will be missing the link back to the new file, and
5198 # tests might fail. Prefer to keep the relevant files in their own
5199 # directory and symlink the directory instead.
5200 # UNLINK is used to remove symlinks from older development versions
5201 # that might get into the way when doing "git update" without doing
5202 # a "make distclean" in between.
5203 DIRS="tests tests/tcg tests/qapi-schema tests/qtest/libqos"
5204 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
5205 DIRS="$DIRS docs docs/interop fsdev scsi"
5206 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
5207 DIRS="$DIRS roms/seabios"
5208 DIRS="$DIRS contrib/plugins/"
5209 LINKS="Makefile"
5210 LINKS="$LINKS tests/tcg/Makefile.target"
5211 LINKS="$LINKS pc-bios/optionrom/Makefile"
5212 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
5213 LINKS="$LINKS roms/seabios/Makefile"
5214 LINKS="$LINKS pc-bios/qemu-icon.bmp"
5215 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
5216 LINKS="$LINKS tests/acceptance tests/data"
5217 LINKS="$LINKS tests/qemu-iotests/check"
5218 LINKS="$LINKS python"
5219 LINKS="$LINKS contrib/plugins/Makefile "
5220 UNLINK="pc-bios/keymaps"
5221 for bios_file in \
5222     $source_path/pc-bios/*.bin \
5223     $source_path/pc-bios/*.elf \
5224     $source_path/pc-bios/*.lid \
5225     $source_path/pc-bios/*.rom \
5226     $source_path/pc-bios/*.dtb \
5227     $source_path/pc-bios/*.img \
5228     $source_path/pc-bios/openbios-* \
5229     $source_path/pc-bios/u-boot.* \
5230     $source_path/pc-bios/edk2-*.fd.bz2 \
5231     $source_path/pc-bios/palcode-*
5232 do
5233     LINKS="$LINKS pc-bios/$(basename $bios_file)"
5234 done
5235 mkdir -p $DIRS
5236 for f in $LINKS ; do
5237     if [ -e "$source_path/$f" ]; then
5238         symlink "$source_path/$f" "$f"
5239     fi
5240 done
5241 for f in $UNLINK ; do
5242     if [ -L "$f" ]; then
5243         rm -f "$f"
5244     fi
5245 done
5246
5247 (for i in $cross_cc_vars; do
5248   export $i
5249 done
5250 export target_list source_path use_containers ARCH
5251 $source_path/tests/tcg/configure.sh)
5252
5253 # temporary config to build submodules
5254 for rom in seabios; do
5255     config_mak=roms/$rom/config.mak
5256     echo "# Automatically generated by configure - do not modify" > $config_mak
5257     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
5258     echo "AS=$as" >> $config_mak
5259     echo "CCAS=$ccas" >> $config_mak
5260     echo "CC=$cc" >> $config_mak
5261     echo "BCC=bcc" >> $config_mak
5262     echo "CPP=$cpp" >> $config_mak
5263     echo "OBJCOPY=objcopy" >> $config_mak
5264     echo "IASL=$iasl" >> $config_mak
5265     echo "LD=$ld" >> $config_mak
5266     echo "RANLIB=$ranlib" >> $config_mak
5267 done
5268
5269 if test "$skip_meson" = no; then
5270   cross="config-meson.cross.new"
5271   meson_quote() {
5272     echo "'$(echo $* | sed "s/ /','/g")'"
5273   }
5274
5275   echo "# Automatically generated by configure - do not modify" > $cross
5276   echo "[properties]" >> $cross
5277   test -z "$cxx" && echo "link_language = 'c'" >> $cross
5278   echo "[built-in options]" >> $cross
5279   echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
5280   echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
5281   echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
5282   echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
5283   echo "[binaries]" >> $cross
5284   echo "c = [$(meson_quote $cc)]" >> $cross
5285   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
5286   test -n "$objcc" && echo "objc = [$(meson_quote $objcc)]" >> $cross
5287   echo "ar = [$(meson_quote $ar)]" >> $cross
5288   echo "nm = [$(meson_quote $nm)]" >> $cross
5289   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
5290   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
5291   if has $sdl2_config; then
5292     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
5293   fi
5294   echo "strip = [$(meson_quote $strip)]" >> $cross
5295   echo "windres = [$(meson_quote $windres)]" >> $cross
5296   if test "$cross_compile" = "yes"; then
5297     cross_arg="--cross-file config-meson.cross"
5298     echo "[host_machine]" >> $cross
5299     if test "$mingw32" = "yes" ; then
5300         echo "system = 'windows'" >> $cross
5301     fi
5302     if test "$linux" = "yes" ; then
5303         echo "system = 'linux'" >> $cross
5304     fi
5305     if test "$darwin" = "yes" ; then
5306         echo "system = 'darwin'" >> $cross
5307     fi
5308     case "$ARCH" in
5309         i386)
5310             echo "cpu_family = 'x86'" >> $cross
5311             ;;
5312         x86_64|x32)
5313             echo "cpu_family = 'x86_64'" >> $cross
5314             ;;
5315         ppc64le)
5316             echo "cpu_family = 'ppc64'" >> $cross
5317             ;;
5318         *)
5319             echo "cpu_family = '$ARCH'" >> $cross
5320             ;;
5321     esac
5322     echo "cpu = '$cpu'" >> $cross
5323     if test "$bigendian" = "yes" ; then
5324         echo "endian = 'big'" >> $cross
5325     else
5326         echo "endian = 'little'" >> $cross
5327     fi
5328   else
5329     cross_arg="--native-file config-meson.cross"
5330   fi
5331   mv $cross config-meson.cross
5332
5333   rm -rf meson-private meson-info meson-logs
5334   unset staticpic
5335   if ! version_ge "$($meson --version)" 0.56.0; then
5336     staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
5337   fi
5338   NINJA=$ninja $meson setup \
5339         --prefix "$prefix" \
5340         --libdir "$libdir" \
5341         --libexecdir "$libexecdir" \
5342         --bindir "$bindir" \
5343         --includedir "$includedir" \
5344         --datadir "$datadir" \
5345         --mandir "$mandir" \
5346         --sysconfdir "$sysconfdir" \
5347         --localedir "$localedir" \
5348         --localstatedir "$local_statedir" \
5349         -Ddocdir="$docdir" \
5350         -Dqemu_firmwarepath="$firmwarepath" \
5351         -Dqemu_suffix="$qemu_suffix" \
5352         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
5353         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
5354         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
5355         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
5356         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
5357         ${staticpic:+-Db_staticpic=$staticpic} \
5358         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
5359         -Db_lto=$lto -Dcfi=$cfi -Dcfi_debug=$cfi_debug \
5360         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
5361         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf -Dnvmm=$nvmm \
5362         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
5363         -Dcocoa=$cocoa -Dgtk=$gtk -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
5364         -Dlibusb=$libusb -Dsmartcard=$smartcard -Dusb_redir=$usb_redir -Dvte=$vte \
5365         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
5366         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
5367         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt -Dbrlapi=$brlapi \
5368         -Dcurl=$curl -Dglusterfs=$glusterfs -Dbzip2=$bzip2 -Dlibiscsi=$libiscsi \
5369         -Dlibnfs=$libnfs -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
5370         -Drbd=$rbd -Dlzo=$lzo -Dsnappy=$snappy -Dlzfse=$lzfse -Dlibxml2=$libxml2 \
5371         -Dlibdaxctl=$libdaxctl -Dlibpmem=$libpmem -Dlinux_io_uring=$linux_io_uring \
5372         -Dgnutls=$gnutls -Dnettle=$nettle -Dgcrypt=$gcrypt -Dauth_pam=$auth_pam \
5373         -Dzstd=$zstd -Dseccomp=$seccomp -Dvirtfs=$virtfs -Dcap_ng=$cap_ng \
5374         -Dattr=$attr -Ddefault_devices=$default_devices -Dvirglrenderer=$virglrenderer \
5375         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
5376         -Dvhost_user_blk_server=$vhost_user_blk_server -Dmultiprocess=$multiprocess \
5377         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek -Dguest_agent_msi=$guest_agent_msi -Dbpf=$bpf\
5378         $(if test "$default_features" = no; then echo "-Dauto_features=disabled"; fi) \
5379         -Dtcg_interpreter=$tcg_interpreter \
5380         $cross_arg \
5381         "$PWD" "$source_path"
5382
5383   if test "$?" -ne 0 ; then
5384       error_exit "meson setup failed"
5385   fi
5386 else
5387   if test -f meson-private/cmd_line.txt; then
5388     # Adjust old command line options whose type was changed
5389     # Avoids having to use "setup --wipe" when Meson is upgraded
5390     perl -i -ne '
5391       s/^gettext = true$/gettext = auto/;
5392       s/^gettext = false$/gettext = disabled/;
5393       print;' meson-private/cmd_line.txt
5394   fi
5395 fi
5396
5397 if test -n "${deprecated_features}"; then
5398     echo "Warning, deprecated features enabled."
5399     echo "Please see docs/system/deprecated.rst"
5400     echo "  features: ${deprecated_features}"
5401 fi
5402
5403 # Create list of config switches that should be poisoned in common code...
5404 # but filter out CONFIG_TCG and CONFIG_USER_ONLY which are special.
5405 target_configs_h=$(ls *-config-devices.h *-config-target.h 2>/dev/null)
5406 if test -n "$target_configs_h" ; then
5407     sed -n -e '/CONFIG_TCG/d' -e '/CONFIG_USER_ONLY/d' \
5408         -e '/^#define / { s///; s/ .*//; s/^/#pragma GCC poison /p; }' \
5409         $target_configs_h | sort -u > config-poison.h
5410 else
5411     :> config-poison.h
5412 fi
5413
5414 # Save the configure command line for later reuse.
5415 cat <<EOD >config.status
5416 #!/bin/sh
5417 # Generated by configure.
5418 # Run this file to recreate the current configuration.
5419 # Compiler output produced by configure, useful for debugging
5420 # configure, is in config.log if it exists.
5421 EOD
5422
5423 preserve_env() {
5424     envname=$1
5425
5426     eval envval=\$$envname
5427
5428     if test -n "$envval"
5429     then
5430         echo "$envname='$envval'" >> config.status
5431         echo "export $envname" >> config.status
5432     else
5433         echo "unset $envname" >> config.status
5434     fi
5435 }
5436
5437 # Preserve various env variables that influence what
5438 # features/build target configure will detect
5439 preserve_env AR
5440 preserve_env AS
5441 preserve_env CC
5442 preserve_env CPP
5443 preserve_env CXX
5444 preserve_env INSTALL
5445 preserve_env LD
5446 preserve_env LD_LIBRARY_PATH
5447 preserve_env LIBTOOL
5448 preserve_env MAKE
5449 preserve_env NM
5450 preserve_env OBJCOPY
5451 preserve_env PATH
5452 preserve_env PKG_CONFIG
5453 preserve_env PKG_CONFIG_LIBDIR
5454 preserve_env PKG_CONFIG_PATH
5455 preserve_env PYTHON
5456 preserve_env SDL2_CONFIG
5457 preserve_env SMBD
5458 preserve_env STRIP
5459 preserve_env WINDRES
5460
5461 printf "exec" >>config.status
5462 for i in "$0" "$@"; do
5463   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
5464 done
5465 echo ' "$@"' >>config.status
5466 chmod +x config.status
5467
5468 rm -r "$TMPDIR1"