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="$default_feature"
 318 linux_io_uring="$default_feature"
 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="$default_feature"
 429 debug_mutex="no"
 430 libpmem="$default_feature"
 431 default_devices="true"
 432 plugins="no"
 433 fuzzing="no"
 434 rng_none="no"
 435 secret_keyring="$default_feature"
 436 libdaxctl="$default_feature"
 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="no"
1209   ;;
1210   --enable-linux-io-uring) linux_io_uring="yes"
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="no"
1423   ;;
1424   --enable-libxml2) libxml2="yes"
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=yes
1508   ;;
1509   --disable-libpmem) libpmem=no
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=yes
1538   ;;
1539   --disable-libdaxctl) libdaxctl=no
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 # Some versions of Mac OS X incorrectly define SIZE_MAX
2380 cat > $TMPC << EOF
2381 #include <stdint.h>
2382 #include <stdio.h>
2383 int main(int argc, char *argv[]) {
2384     return printf("%zu", SIZE_MAX);
2385 }
2386 EOF
2387 have_broken_size_max=no
2388 if ! compile_object -Werror ; then
2389     have_broken_size_max=yes
2390 fi
2391
2392 ##########################################
2393 # L2TPV3 probe
2394
2395 cat > $TMPC <<EOF
2396 #include <sys/socket.h>
2397 #include <linux/ip.h>
2398 int main(void) { return sizeof(struct mmsghdr); }
2399 EOF
2400 if compile_prog "" "" ; then
2401   l2tpv3=yes
2402 else
2403   l2tpv3=no
2404 fi
2405
2406 cat > $TMPC <<EOF
2407 #include <sys/mman.h>
2408 int main(int argc, char *argv[]) {
2409     return mlockall(MCL_FUTURE);
2410 }
2411 EOF
2412 if compile_prog "" "" ; then
2413   have_mlockall=yes
2414 else
2415   have_mlockall=no
2416 fi
2417
2418 #########################################
2419 # vhost interdependencies and host support
2420
2421 # vhost backends
2422 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2423   error_exit "vhost-user is only available on Linux"
2424 fi
2425 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2426 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2427   error_exit "vhost-vdpa is only available on Linux"
2428 fi
2429 test "$vhost_kernel" = "" && vhost_kernel=$linux
2430 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2431   error_exit "vhost-kernel is only available on Linux"
2432 fi
2433
2434 # vhost-kernel devices
2435 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2436 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2437   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2438 fi
2439 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2440 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2441   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2442 fi
2443
2444 # vhost-user backends
2445 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2446 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2447   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2448 fi
2449 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2450 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2451   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2452 fi
2453 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2454 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2455   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2456 fi
2457 #vhost-vdpa backends
2458 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2459 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2460   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2461 fi
2462
2463 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2464 if test "$vhost_net" = ""; then
2465   test "$vhost_net_user" = "yes" && vhost_net=yes
2466   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2467   test "$vhost_kernel" = "yes" && vhost_net=yes
2468 fi
2469
2470 ##########################################
2471 # pkg-config probe
2472
2473 if ! has "$pkg_config_exe"; then
2474   error_exit "pkg-config binary '$pkg_config_exe' not found"
2475 fi
2476
2477 ##########################################
2478 # NPTL probe
2479
2480 if test "$linux_user" = "yes"; then
2481   cat > $TMPC <<EOF
2482 #include <sched.h>
2483 #include <linux/futex.h>
2484 int main(void) {
2485 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2486 #error bork
2487 #endif
2488   return 0;
2489 }
2490 EOF
2491   if ! compile_object ; then
2492     feature_not_found "nptl" "Install glibc and linux kernel headers."
2493   fi
2494 fi
2495
2496 ##########################################
2497 # xen probe
2498
2499 if test "$xen" != "disabled" ; then
2500   # Check whether Xen library path is specified via --extra-ldflags to avoid
2501   # overriding this setting with pkg-config output. If not, try pkg-config
2502   # to obtain all needed flags.
2503
2504   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2505      $pkg_config --exists xencontrol ; then
2506     xen_ctrl_version="$(printf '%d%02d%02d' \
2507       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2508     xen=enabled
2509     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2510     xen_pc="$xen_pc xenevtchn xendevicemodel"
2511     if $pkg_config --exists xentoolcore; then
2512       xen_pc="$xen_pc xentoolcore"
2513     fi
2514     xen_cflags="$($pkg_config --cflags $xen_pc)"
2515     xen_libs="$($pkg_config --libs $xen_pc)"
2516   else
2517
2518     xen_libs="-lxenstore -lxenctrl"
2519     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2520
2521     # First we test whether Xen headers and libraries are available.
2522     # If no, we are done and there is no Xen support.
2523     # If yes, more tests are run to detect the Xen version.
2524
2525     # Xen (any)
2526     cat > $TMPC <<EOF
2527 #include <xenctrl.h>
2528 int main(void) {
2529   return 0;
2530 }
2531 EOF
2532     if ! compile_prog "" "$xen_libs" ; then
2533       # Xen not found
2534       if test "$xen" = "enabled" ; then
2535         feature_not_found "xen" "Install xen devel"
2536       fi
2537       xen=disabled
2538
2539     # Xen unstable
2540     elif
2541         cat > $TMPC <<EOF &&
2542 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2543 #define __XEN_TOOLS__
2544 #include <xendevicemodel.h>
2545 #include <xenforeignmemory.h>
2546 int main(void) {
2547   xendevicemodel_handle *xd;
2548   xenforeignmemory_handle *xfmem;
2549
2550   xd = xendevicemodel_open(0, 0);
2551   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2552
2553   xfmem = xenforeignmemory_open(0, 0);
2554   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2555
2556   return 0;
2557 }
2558 EOF
2559         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2560       then
2561       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2562       xen_ctrl_version=41100
2563       xen=enabled
2564     elif
2565         cat > $TMPC <<EOF &&
2566 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2567 #include <xenforeignmemory.h>
2568 #include <xentoolcore.h>
2569 int main(void) {
2570   xenforeignmemory_handle *xfmem;
2571
2572   xfmem = xenforeignmemory_open(0, 0);
2573   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2574   xentoolcore_restrict_all(0);
2575
2576   return 0;
2577 }
2578 EOF
2579         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2580       then
2581       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2582       xen_ctrl_version=41000
2583       xen=enabled
2584     elif
2585         cat > $TMPC <<EOF &&
2586 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2587 #define __XEN_TOOLS__
2588 #include <xendevicemodel.h>
2589 int main(void) {
2590   xendevicemodel_handle *xd;
2591
2592   xd = xendevicemodel_open(0, 0);
2593   xendevicemodel_close(xd);
2594
2595   return 0;
2596 }
2597 EOF
2598         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2599       then
2600       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2601       xen_ctrl_version=40900
2602       xen=enabled
2603     elif
2604         cat > $TMPC <<EOF &&
2605 /*
2606  * If we have stable libs the we don't want the libxc compat
2607  * layers, regardless of what CFLAGS we may have been given.
2608  *
2609  * Also, check if xengnttab_grant_copy_segment_t is defined and
2610  * grant copy operation is implemented.
2611  */
2612 #undef XC_WANT_COMPAT_EVTCHN_API
2613 #undef XC_WANT_COMPAT_GNTTAB_API
2614 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2615 #include <xenctrl.h>
2616 #include <xenstore.h>
2617 #include <xenevtchn.h>
2618 #include <xengnttab.h>
2619 #include <xenforeignmemory.h>
2620 #include <stdint.h>
2621 #include <xen/hvm/hvm_info_table.h>
2622 #if !defined(HVM_MAX_VCPUS)
2623 # error HVM_MAX_VCPUS not defined
2624 #endif
2625 int main(void) {
2626   xc_interface *xc = NULL;
2627   xenforeignmemory_handle *xfmem;
2628   xenevtchn_handle *xe;
2629   xengnttab_handle *xg;
2630   xengnttab_grant_copy_segment_t* seg = NULL;
2631
2632   xs_daemon_open();
2633
2634   xc = xc_interface_open(0, 0, 0);
2635   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2636   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2637   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2638   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2639
2640   xfmem = xenforeignmemory_open(0, 0);
2641   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2642
2643   xe = xenevtchn_open(0, 0);
2644   xenevtchn_fd(xe);
2645
2646   xg = xengnttab_open(0, 0);
2647   xengnttab_grant_copy(xg, 0, seg);
2648
2649   return 0;
2650 }
2651 EOF
2652         compile_prog "" "$xen_libs $xen_stable_libs"
2653       then
2654       xen_ctrl_version=40800
2655       xen=enabled
2656     elif
2657         cat > $TMPC <<EOF &&
2658 /*
2659  * If we have stable libs the we don't want the libxc compat
2660  * layers, regardless of what CFLAGS we may have been given.
2661  */
2662 #undef XC_WANT_COMPAT_EVTCHN_API
2663 #undef XC_WANT_COMPAT_GNTTAB_API
2664 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2665 #include <xenctrl.h>
2666 #include <xenstore.h>
2667 #include <xenevtchn.h>
2668 #include <xengnttab.h>
2669 #include <xenforeignmemory.h>
2670 #include <stdint.h>
2671 #include <xen/hvm/hvm_info_table.h>
2672 #if !defined(HVM_MAX_VCPUS)
2673 # error HVM_MAX_VCPUS not defined
2674 #endif
2675 int main(void) {
2676   xc_interface *xc = NULL;
2677   xenforeignmemory_handle *xfmem;
2678   xenevtchn_handle *xe;
2679   xengnttab_handle *xg;
2680
2681   xs_daemon_open();
2682
2683   xc = xc_interface_open(0, 0, 0);
2684   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2685   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2686   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2687   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2688
2689   xfmem = xenforeignmemory_open(0, 0);
2690   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2691
2692   xe = xenevtchn_open(0, 0);
2693   xenevtchn_fd(xe);
2694
2695   xg = xengnttab_open(0, 0);
2696   xengnttab_map_grant_ref(xg, 0, 0, 0);
2697
2698   return 0;
2699 }
2700 EOF
2701         compile_prog "" "$xen_libs $xen_stable_libs"
2702       then
2703       xen_ctrl_version=40701
2704       xen=enabled
2705
2706     # Xen 4.6
2707     elif
2708         cat > $TMPC <<EOF &&
2709 #include <xenctrl.h>
2710 #include <xenstore.h>
2711 #include <stdint.h>
2712 #include <xen/hvm/hvm_info_table.h>
2713 #if !defined(HVM_MAX_VCPUS)
2714 # error HVM_MAX_VCPUS not defined
2715 #endif
2716 int main(void) {
2717   xc_interface *xc;
2718   xs_daemon_open();
2719   xc = xc_interface_open(0, 0, 0);
2720   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2721   xc_gnttab_open(NULL, 0);
2722   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2723   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2724   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2725   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2726   return 0;
2727 }
2728 EOF
2729         compile_prog "" "$xen_libs"
2730       then
2731       xen_ctrl_version=40600
2732       xen=enabled
2733
2734     # Xen 4.5
2735     elif
2736         cat > $TMPC <<EOF &&
2737 #include <xenctrl.h>
2738 #include <xenstore.h>
2739 #include <stdint.h>
2740 #include <xen/hvm/hvm_info_table.h>
2741 #if !defined(HVM_MAX_VCPUS)
2742 # error HVM_MAX_VCPUS not defined
2743 #endif
2744 int main(void) {
2745   xc_interface *xc;
2746   xs_daemon_open();
2747   xc = xc_interface_open(0, 0, 0);
2748   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2749   xc_gnttab_open(NULL, 0);
2750   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2751   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2752   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2753   return 0;
2754 }
2755 EOF
2756         compile_prog "" "$xen_libs"
2757       then
2758       xen_ctrl_version=40500
2759       xen=enabled
2760
2761     elif
2762         cat > $TMPC <<EOF &&
2763 #include <xenctrl.h>
2764 #include <xenstore.h>
2765 #include <stdint.h>
2766 #include <xen/hvm/hvm_info_table.h>
2767 #if !defined(HVM_MAX_VCPUS)
2768 # error HVM_MAX_VCPUS not defined
2769 #endif
2770 int main(void) {
2771   xc_interface *xc;
2772   xs_daemon_open();
2773   xc = xc_interface_open(0, 0, 0);
2774   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2775   xc_gnttab_open(NULL, 0);
2776   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2777   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2778   return 0;
2779 }
2780 EOF
2781         compile_prog "" "$xen_libs"
2782       then
2783       xen_ctrl_version=40200
2784       xen=enabled
2785
2786     else
2787       if test "$xen" = "enabled" ; then
2788         feature_not_found "xen (unsupported version)" \
2789                           "Install a supported xen (xen 4.2 or newer)"
2790       fi
2791       xen=disabled
2792     fi
2793
2794     if test "$xen" = enabled; then
2795       if test $xen_ctrl_version -ge 40701  ; then
2796         xen_libs="$xen_libs $xen_stable_libs "
2797       fi
2798     fi
2799   fi
2800 fi
2801
2802 ##########################################
2803 # RDMA needs OpenFabrics libraries
2804 if test "$rdma" != "no" ; then
2805   cat > $TMPC <<EOF
2806 #include <rdma/rdma_cma.h>
2807 int main(void) { return 0; }
2808 EOF
2809   rdma_libs="-lrdmacm -libverbs -libumad"
2810   if compile_prog "" "$rdma_libs" ; then
2811     rdma="yes"
2812   else
2813     if test "$rdma" = "yes" ; then
2814         error_exit \
2815             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
2816             " Your options:" \
2817             "  (1) Fast: Install infiniband packages (devel) from your distro." \
2818             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
2819             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
2820     fi
2821     rdma="no"
2822   fi
2823 fi
2824
2825 ##########################################
2826 # PVRDMA detection
2827
2828 cat > $TMPC <<EOF &&
2829 #include <sys/mman.h>
2830
2831 int
2832 main(void)
2833 {
2834     char buf = 0;
2835     void *addr = &buf;
2836     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2837
2838     return 0;
2839 }
2840 EOF
2841
2842 if test "$rdma" = "yes" ; then
2843     case "$pvrdma" in
2844     "")
2845         if compile_prog "" ""; then
2846             pvrdma="yes"
2847         else
2848             pvrdma="no"
2849         fi
2850         ;;
2851     "yes")
2852         if ! compile_prog "" ""; then
2853             error_exit "PVRDMA is not supported since mremap is not implemented"
2854         fi
2855         pvrdma="yes"
2856         ;;
2857     "no")
2858         pvrdma="no"
2859         ;;
2860     esac
2861 else
2862     if test "$pvrdma" = "yes" ; then
2863         error_exit "PVRDMA requires rdma suppport"
2864     fi
2865     pvrdma="no"
2866 fi
2867
2868 # Let's see if enhanced reg_mr is supported
2869 if test "$pvrdma" = "yes" ; then
2870
2871 cat > $TMPC <<EOF &&
2872 #include <infiniband/verbs.h>
2873
2874 int
2875 main(void)
2876 {
2877     struct ibv_mr *mr;
2878     struct ibv_pd *pd = NULL;
2879     size_t length = 10;
2880     uint64_t iova = 0;
2881     int access = 0;
2882     void *addr = NULL;
2883
2884     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2885
2886     ibv_dereg_mr(mr);
2887
2888     return 0;
2889 }
2890 EOF
2891     if ! compile_prog "" "-libverbs"; then
2892         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
2893     fi
2894 fi
2895
2896 ##########################################
2897 # xfsctl() probe, used for file-posix.c
2898 if test "$xfs" != "no" ; then
2899   cat > $TMPC << EOF
2900 #include <stddef.h>  /* NULL */
2901 #include <xfs/xfs.h>
2902 int main(void)
2903 {
2904     xfsctl(NULL, 0, 0, NULL);
2905     return 0;
2906 }
2907 EOF
2908   if compile_prog "" "" ; then
2909     xfs="yes"
2910   else
2911     if test "$xfs" = "yes" ; then
2912       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
2913     fi
2914     xfs=no
2915   fi
2916 fi
2917
2918 ##########################################
2919 # vde libraries probe
2920 if test "$vde" != "no" ; then
2921   vde_libs="-lvdeplug"
2922   cat > $TMPC << EOF
2923 #include <libvdeplug.h>
2924 int main(void)
2925 {
2926     struct vde_open_args a = {0, 0, 0};
2927     char s[] = "";
2928     vde_open(s, s, &a);
2929     return 0;
2930 }
2931 EOF
2932   if compile_prog "" "$vde_libs" ; then
2933     vde=yes
2934   else
2935     if test "$vde" = "yes" ; then
2936       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
2937     fi
2938     vde=no
2939   fi
2940 fi
2941
2942 ##########################################
2943 # netmap support probe
2944 # Apart from looking for netmap headers, we make sure that the host API version
2945 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
2946 # a minor/major version number. Minor new features will be marked with values up
2947 # to 15, and if something happens that requires a change to the backend we will
2948 # move above 15, submit the backend fixes and modify this two bounds.
2949 if test "$netmap" != "no" ; then
2950   cat > $TMPC << EOF
2951 #include <inttypes.h>
2952 #include <net/if.h>
2953 #include <net/netmap.h>
2954 #include <net/netmap_user.h>
2955 #if (NETMAP_API < 11) || (NETMAP_API > 15)
2956 #error
2957 #endif
2958 int main(void) { return 0; }
2959 EOF
2960   if compile_prog "" "" ; then
2961     netmap=yes
2962   else
2963     if test "$netmap" = "yes" ; then
2964       feature_not_found "netmap"
2965     fi
2966     netmap=no
2967   fi
2968 fi
2969
2970 ##########################################
2971 # detect CoreAudio
2972 if test "$coreaudio" != "no" ; then
2973   coreaudio_libs="-framework CoreAudio"
2974   cat > $TMPC << EOF
2975 #include <CoreAudio/CoreAudio.h>
2976 int main(void)
2977 {
2978   return (int)AudioGetCurrentHostTime();
2979 }
2980 EOF
2981   if compile_prog "" "$coreaudio_libs" ; then
2982     coreaudio=yes
2983   else
2984     coreaudio=no
2985   fi
2986 fi
2987
2988 ##########################################
2989 # Sound support libraries probe
2990
2991 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
2992 for drv in $audio_drv_list; do
2993     case $drv in
2994     alsa | try-alsa)
2995     if $pkg_config alsa --exists; then
2996         alsa_libs=$($pkg_config alsa --libs)
2997         alsa_cflags=$($pkg_config alsa --cflags)
2998         alsa=yes
2999         if test "$drv" = "try-alsa"; then
3000             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3001         fi
3002     else
3003         if test "$drv" = "try-alsa"; then
3004             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3005         else
3006             error_exit "$drv check failed" \
3007                 "Make sure to have the $drv libs and headers installed."
3008         fi
3009     fi
3010     ;;
3011
3012     pa | try-pa)
3013     if $pkg_config libpulse --exists; then
3014         libpulse=yes
3015         pulse_libs=$($pkg_config libpulse --libs)
3016         pulse_cflags=$($pkg_config libpulse --cflags)
3017         if test "$drv" = "try-pa"; then
3018             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3019         fi
3020     else
3021         if test "$drv" = "try-pa"; then
3022             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3023         else
3024             error_exit "$drv check failed" \
3025                 "Make sure to have the $drv libs and headers installed."
3026         fi
3027     fi
3028     ;;
3029
3030     sdl)
3031     if test "$sdl" = "no"; then
3032         error_exit "sdl not found or disabled, can not use sdl audio driver"
3033     fi
3034     ;;
3035
3036     try-sdl)
3037     if test "$sdl" = "no"; then
3038         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3039     else
3040         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3041     fi
3042     ;;
3043
3044     coreaudio | try-coreaudio)
3045     if test "$coreaudio" = "no"; then
3046       if test "$drv" = "try-coreaudio"; then
3047         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio//')
3048       else
3049         error_exit "$drv check failed" \
3050                 "Make sure to have the $drv is available."
3051       fi
3052     else
3053       coreaudio_libs="-framework CoreAudio"
3054       if test "$drv" = "try-coreaudio"; then
3055         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio/coreaudio/')
3056       fi
3057     fi
3058     ;;
3059
3060     dsound)
3061       dsound_libs="-lole32 -ldxguid"
3062       audio_win_int="yes"
3063     ;;
3064
3065     oss)
3066       oss_libs="$oss_lib"
3067     ;;
3068
3069     jack | try-jack)
3070     if $pkg_config jack --exists; then
3071         libjack=yes
3072         jack_libs=$($pkg_config jack --libs)
3073         if test "$drv" = "try-jack"; then
3074             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3075         fi
3076     else
3077         if test "$drv" = "try-jack"; then
3078             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3079         else
3080             error_exit "$drv check failed" \
3081                 "Make sure to have the $drv libs and headers installed."
3082         fi
3083     fi
3084     ;;
3085
3086     *)
3087     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3088         error_exit "Unknown driver '$drv' selected" \
3089             "Possible drivers are: $audio_possible_drivers"
3090     }
3091     ;;
3092     esac
3093 done
3094
3095 ##########################################
3096 # glib support probe
3097
3098 glib_req_ver=2.56
3099 glib_modules=gthread-2.0
3100 if test "$modules" = yes; then
3101     glib_modules="$glib_modules gmodule-export-2.0"
3102 fi
3103 if test "$plugins" = yes; then
3104     glib_modules="$glib_modules gmodule-2.0"
3105 fi
3106
3107 for i in $glib_modules; do
3108     if $pkg_config --atleast-version=$glib_req_ver $i; then
3109         glib_cflags=$($pkg_config --cflags $i)
3110         glib_libs=$($pkg_config --libs $i)
3111     else
3112         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3113     fi
3114 done
3115
3116 # This workaround is required due to a bug in pkg-config file for glib as it
3117 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3118
3119 if test "$static" = yes && test "$mingw32" = yes; then
3120     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3121 fi
3122
3123 if ! test "$gio" = "no"; then
3124     pass=no
3125     if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3126         gio_cflags=$($pkg_config --cflags gio-2.0)
3127         gio_libs=$($pkg_config --libs gio-2.0)
3128         gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3129         if ! has "$gdbus_codegen"; then
3130             gdbus_codegen=
3131         fi
3132         # Check that the libraries actually work -- Ubuntu 18.04 ships
3133         # with pkg-config --static --libs data for gio-2.0 that is missing
3134         # -lblkid and will give a link error.
3135         cat > $TMPC <<EOF
3136 #include <gio/gio.h>
3137 int main(void)
3138 {
3139     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3140     return 0;
3141 }
3142 EOF
3143         if compile_prog "$gio_cflags" "$gio_libs" ; then
3144             pass=yes
3145         else
3146             pass=no
3147         fi
3148
3149         if test "$pass" = "yes" &&
3150             $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3151             gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3152             gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3153         fi
3154     fi
3155
3156     if test "$pass" = "no"; then
3157         if test "$gio" = "yes"; then
3158             feature_not_found "gio" "Install libgio >= 2.0"
3159         else
3160             gio=no
3161         fi
3162     else
3163         gio=yes
3164     fi
3165 fi
3166
3167 # Sanity check that the current size_t matches the
3168 # size that glib thinks it should be. This catches
3169 # problems on multi-arch where people try to build
3170 # 32-bit QEMU while pointing at 64-bit glib headers
3171 cat > $TMPC <<EOF
3172 #include <glib.h>
3173 #include <unistd.h>
3174
3175 #define QEMU_BUILD_BUG_ON(x) \
3176   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3177
3178 int main(void) {
3179    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3180    return 0;
3181 }
3182 EOF
3183
3184 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3185     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3186                "You probably need to set PKG_CONFIG_LIBDIR"\
3187                "to point to the right pkg-config files for your"\
3188                "build target"
3189 fi
3190
3191 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3192 cat > $TMPC << EOF
3193 #include <glib.h>
3194 int main(void) { return 0; }
3195 EOF
3196 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3197     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3198         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3199         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3200     fi
3201 fi
3202
3203 # Silence clang warnings triggered by glib < 2.57.2
3204 cat > $TMPC << EOF
3205 #include <glib.h>
3206 typedef struct Foo {
3207     int i;
3208 } Foo;
3209 static void foo_free(Foo *f)
3210 {
3211     g_free(f);
3212 }
3213 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3214 int main(void) { return 0; }
3215 EOF
3216 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3217     if cc_has_warning_flag "-Wno-unused-function"; then
3218         glib_cflags="$glib_cflags -Wno-unused-function"
3219         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3220     fi
3221 fi
3222
3223 ##########################################
3224 # SHA command probe for modules
3225 if test "$modules" = yes; then
3226     shacmd_probe="sha1sum sha1 shasum"
3227     for c in $shacmd_probe; do
3228         if has $c; then
3229             shacmd="$c"
3230             break
3231         fi
3232     done
3233     if test "$shacmd" = ""; then
3234         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3235     fi
3236 fi
3237
3238 ##########################################
3239 # pthread probe
3240 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3241
3242 pthread=no
3243 cat > $TMPC << EOF
3244 #include <pthread.h>
3245 static void *f(void *p) { return NULL; }
3246 int main(void) {
3247   pthread_t thread;
3248   pthread_create(&thread, 0, f, 0);
3249   return 0;
3250 }
3251 EOF
3252 if compile_prog "" "" ; then
3253   pthread=yes
3254 else
3255   for pthread_lib in $PTHREADLIBS_LIST; do
3256     if compile_prog "" "$pthread_lib" ; then
3257       pthread=yes
3258       break
3259     fi
3260   done
3261 fi
3262
3263 if test "$mingw32" != yes && test "$pthread" = no; then
3264   error_exit "pthread check failed" \
3265       "Make sure to have the pthread libs and headers installed."
3266 fi
3267
3268 # check for pthread_setname_np with thread id
3269 pthread_setname_np_w_tid=no
3270 cat > $TMPC << EOF
3271 #include <pthread.h>
3272
3273 static void *f(void *p) { return NULL; }
3274 int main(void)
3275 {
3276     pthread_t thread;
3277     pthread_create(&thread, 0, f, 0);
3278     pthread_setname_np(thread, "QEMU");
3279     return 0;
3280 }
3281 EOF
3282 if compile_prog "" "$pthread_lib" ; then
3283   pthread_setname_np_w_tid=yes
3284 fi
3285
3286 # check for pthread_setname_np without thread id
3287 pthread_setname_np_wo_tid=no
3288 cat > $TMPC << EOF
3289 #include <pthread.h>
3290
3291 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3292 int main(void)
3293 {
3294     pthread_t thread;
3295     pthread_create(&thread, 0, f, 0);
3296     return 0;
3297 }
3298 EOF
3299 if compile_prog "" "$pthread_lib" ; then
3300   pthread_setname_np_wo_tid=yes
3301 fi
3302
3303 ##########################################
3304 # libssh probe
3305 if test "$libssh" != "no" ; then
3306   if $pkg_config --exists "libssh >= 0.8.7"; then
3307     libssh_cflags=$($pkg_config libssh --cflags)
3308     libssh_libs=$($pkg_config libssh --libs)
3309     libssh=yes
3310   else
3311     if test "$libssh" = "yes" ; then
3312       error_exit "libssh required for --enable-libssh"
3313     fi
3314     libssh=no
3315   fi
3316 fi
3317
3318 ##########################################
3319 # linux-aio probe
3320
3321 if test "$linux_aio" != "no" ; then
3322   cat > $TMPC <<EOF
3323 #include <libaio.h>
3324 #include <sys/eventfd.h>
3325 #include <stddef.h>
3326 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3327 EOF
3328   if compile_prog "" "-laio" ; then
3329     linux_aio=yes
3330   else
3331     if test "$linux_aio" = "yes" ; then
3332       feature_not_found "linux AIO" "Install libaio devel"
3333     fi
3334     linux_aio=no
3335   fi
3336 fi
3337 ##########################################
3338 # linux-io-uring probe
3339
3340 if test "$linux_io_uring" != "no" ; then
3341   if $pkg_config liburing; then
3342     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3343     linux_io_uring_libs=$($pkg_config --libs liburing)
3344     linux_io_uring=yes
3345   else
3346     if test "$linux_io_uring" = "yes" ; then
3347       feature_not_found "linux io_uring" "Install liburing devel"
3348     fi
3349     linux_io_uring=no
3350   fi
3351 fi
3352
3353 ##########################################
3354 # TPM emulation is only on POSIX
3355
3356 if test "$tpm" = ""; then
3357   if test "$mingw32" = "yes"; then
3358     tpm=no
3359   else
3360     tpm=yes
3361   fi
3362 elif test "$tpm" = "yes"; then
3363   if test "$mingw32" = "yes" ; then
3364     error_exit "TPM emulation only available on POSIX systems"
3365   fi
3366 fi
3367
3368 ##########################################
3369 # iovec probe
3370 cat > $TMPC <<EOF
3371 #include <sys/types.h>
3372 #include <sys/uio.h>
3373 #include <unistd.h>
3374 int main(void) { return sizeof(struct iovec); }
3375 EOF
3376 iovec=no
3377 if compile_prog "" "" ; then
3378   iovec=yes
3379 fi
3380
3381 ##########################################
3382 # fdt probe
3383
3384 case "$fdt" in
3385   auto | enabled | internal)
3386     # Simpler to always update submodule, even if not needed.
3387     git_submodules="${git_submodules} dtc"
3388     ;;
3389 esac
3390
3391 ##########################################
3392 # opengl probe (for sdl2, gtk)
3393
3394 gbm="no"
3395 if $pkg_config gbm; then
3396     gbm_cflags="$($pkg_config --cflags gbm)"
3397     gbm_libs="$($pkg_config --libs gbm)"
3398     gbm="yes"
3399 fi
3400
3401 if test "$opengl" != "no" ; then
3402   epoxy=no
3403   if $pkg_config epoxy; then
3404     cat > $TMPC << EOF
3405 #include <epoxy/egl.h>
3406 int main(void) { return 0; }
3407 EOF
3408     if compile_prog "" "" ; then
3409       epoxy=yes
3410     fi
3411   fi
3412
3413   if test "$epoxy" = "yes" ; then
3414     opengl_cflags="$($pkg_config --cflags epoxy)"
3415     opengl_libs="$($pkg_config --libs epoxy)"
3416     opengl=yes
3417   else
3418     if test "$opengl" = "yes" ; then
3419       feature_not_found "opengl" "Please install epoxy with EGL"
3420     fi
3421     opengl_cflags=""
3422     opengl_libs=""
3423     opengl=no
3424   fi
3425 fi
3426
3427 ##########################################
3428 # libxml2 probe
3429 if test "$libxml2" != "no" ; then
3430     if $pkg_config --exists libxml-2.0; then
3431         libxml2="yes"
3432         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3433         libxml2_libs=$($pkg_config --libs libxml-2.0)
3434     else
3435         if test "$libxml2" = "yes"; then
3436             feature_not_found "libxml2" "Install libxml2 devel"
3437         fi
3438         libxml2="no"
3439     fi
3440 fi
3441
3442 # Check for inotify functions when we are building linux-user
3443 # emulator.  This is done because older glibc versions don't
3444 # have syscall stubs for these implemented.  In that case we
3445 # don't provide them even if kernel supports them.
3446 #
3447 inotify=no
3448 cat > $TMPC << EOF
3449 #include <sys/inotify.h>
3450
3451 int
3452 main(void)
3453 {
3454         /* try to start inotify */
3455         return inotify_init();
3456 }
3457 EOF
3458 if compile_prog "" "" ; then
3459   inotify=yes
3460 fi
3461
3462 inotify1=no
3463 cat > $TMPC << EOF
3464 #include <sys/inotify.h>
3465
3466 int
3467 main(void)
3468 {
3469     /* try to start inotify */
3470     return inotify_init1(0);
3471 }
3472 EOF
3473 if compile_prog "" "" ; then
3474   inotify1=yes
3475 fi
3476
3477 # check if pipe2 is there
3478 pipe2=no
3479 cat > $TMPC << EOF
3480 #include <unistd.h>
3481 #include <fcntl.h>
3482
3483 int main(void)
3484 {
3485     int pipefd[2];
3486     return pipe2(pipefd, O_CLOEXEC);
3487 }
3488 EOF
3489 if compile_prog "" "" ; then
3490   pipe2=yes
3491 fi
3492
3493 # check if accept4 is there
3494 accept4=no
3495 cat > $TMPC << EOF
3496 #include <sys/socket.h>
3497 #include <stddef.h>
3498
3499 int main(void)
3500 {
3501     accept4(0, NULL, NULL, SOCK_CLOEXEC);
3502     return 0;
3503 }
3504 EOF
3505 if compile_prog "" "" ; then
3506   accept4=yes
3507 fi
3508
3509 # check if tee/splice is there. vmsplice was added same time.
3510 splice=no
3511 cat > $TMPC << EOF
3512 #include <unistd.h>
3513 #include <fcntl.h>
3514 #include <limits.h>
3515
3516 int main(void)
3517 {
3518     int len, fd = 0;
3519     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
3520     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
3521     return 0;
3522 }
3523 EOF
3524 if compile_prog "" "" ; then
3525   splice=yes
3526 fi
3527
3528 ##########################################
3529 # libnuma probe
3530
3531 if test "$numa" != "no" ; then
3532   cat > $TMPC << EOF
3533 #include <numa.h>
3534 int main(void) { return numa_available(); }
3535 EOF
3536
3537   if compile_prog "" "-lnuma" ; then
3538     numa=yes
3539     numa_libs="-lnuma"
3540   else
3541     if test "$numa" = "yes" ; then
3542       feature_not_found "numa" "install numactl devel"
3543     fi
3544     numa=no
3545   fi
3546 fi
3547
3548 malloc=system
3549 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
3550     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
3551     exit 1
3552 elif test "$tcmalloc" = "yes" ; then
3553     malloc=tcmalloc
3554 elif test "$jemalloc" = "yes" ; then
3555     malloc=jemalloc
3556 fi
3557
3558 ##########################################
3559 # signalfd probe
3560 signalfd="no"
3561 cat > $TMPC << EOF
3562 #include <unistd.h>
3563 #include <sys/syscall.h>
3564 #include <signal.h>
3565 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
3566 EOF
3567
3568 if compile_prog "" "" ; then
3569   signalfd=yes
3570 fi
3571
3572 # check if optreset global is declared by <getopt.h>
3573 optreset="no"
3574 cat > $TMPC << EOF
3575 #include <getopt.h>
3576 int main(void) { return optreset; }
3577 EOF
3578
3579 if compile_prog "" "" ; then
3580   optreset=yes
3581 fi
3582
3583 # check if eventfd is supported
3584 eventfd=no
3585 cat > $TMPC << EOF
3586 #include <sys/eventfd.h>
3587
3588 int main(void)
3589 {
3590     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
3591 }
3592 EOF
3593 if compile_prog "" "" ; then
3594   eventfd=yes
3595 fi
3596
3597 # check if memfd is supported
3598 memfd=no
3599 cat > $TMPC << EOF
3600 #include <sys/mman.h>
3601
3602 int main(void)
3603 {
3604     return memfd_create("foo", MFD_ALLOW_SEALING);
3605 }
3606 EOF
3607 if compile_prog "" "" ; then
3608   memfd=yes
3609 fi
3610
3611 # check for usbfs
3612 have_usbfs=no
3613 if test "$linux_user" = "yes"; then
3614   cat > $TMPC << EOF
3615 #include <linux/usbdevice_fs.h>
3616
3617 #ifndef USBDEVFS_GET_CAPABILITIES
3618 #error "USBDEVFS_GET_CAPABILITIES undefined"
3619 #endif
3620
3621 #ifndef USBDEVFS_DISCONNECT_CLAIM
3622 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
3623 #endif
3624
3625 int main(void)
3626 {
3627     return 0;
3628 }
3629 EOF
3630   if compile_prog "" ""; then
3631     have_usbfs=yes
3632   fi
3633 fi
3634
3635 # check for fallocate
3636 fallocate=no
3637 cat > $TMPC << EOF
3638 #include <fcntl.h>
3639
3640 int main(void)
3641 {
3642     fallocate(0, 0, 0, 0);
3643     return 0;
3644 }
3645 EOF
3646 if compile_prog "" "" ; then
3647   fallocate=yes
3648 fi
3649
3650 # check for fallocate hole punching
3651 fallocate_punch_hole=no
3652 cat > $TMPC << EOF
3653 #include <fcntl.h>
3654 #include <linux/falloc.h>
3655
3656 int main(void)
3657 {
3658     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
3659     return 0;
3660 }
3661 EOF
3662 if compile_prog "" "" ; then
3663   fallocate_punch_hole=yes
3664 fi
3665
3666 # check that fallocate supports range zeroing inside the file
3667 fallocate_zero_range=no
3668 cat > $TMPC << EOF
3669 #include <fcntl.h>
3670 #include <linux/falloc.h>
3671
3672 int main(void)
3673 {
3674     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
3675     return 0;
3676 }
3677 EOF
3678 if compile_prog "" "" ; then
3679   fallocate_zero_range=yes
3680 fi
3681
3682 # check for posix_fallocate
3683 posix_fallocate=no
3684 cat > $TMPC << EOF
3685 #include <fcntl.h>
3686
3687 int main(void)
3688 {
3689     posix_fallocate(0, 0, 0);
3690     return 0;
3691 }
3692 EOF
3693 if compile_prog "" "" ; then
3694     posix_fallocate=yes
3695 fi
3696
3697 # check for sync_file_range
3698 sync_file_range=no
3699 cat > $TMPC << EOF
3700 #include <fcntl.h>
3701
3702 int main(void)
3703 {
3704     sync_file_range(0, 0, 0, 0);
3705     return 0;
3706 }
3707 EOF
3708 if compile_prog "" "" ; then
3709   sync_file_range=yes
3710 fi
3711
3712 # check for linux/fiemap.h and FS_IOC_FIEMAP
3713 fiemap=no
3714 cat > $TMPC << EOF
3715 #include <sys/ioctl.h>
3716 #include <linux/fs.h>
3717 #include <linux/fiemap.h>
3718
3719 int main(void)
3720 {
3721     ioctl(0, FS_IOC_FIEMAP, 0);
3722     return 0;
3723 }
3724 EOF
3725 if compile_prog "" "" ; then
3726   fiemap=yes
3727 fi
3728
3729 # check for dup3
3730 dup3=no
3731 cat > $TMPC << EOF
3732 #include <unistd.h>
3733
3734 int main(void)
3735 {
3736     dup3(0, 0, 0);
3737     return 0;
3738 }
3739 EOF
3740 if compile_prog "" "" ; then
3741   dup3=yes
3742 fi
3743
3744 # check for ppoll support
3745 ppoll=no
3746 cat > $TMPC << EOF
3747 #include <poll.h>
3748
3749 int main(void)
3750 {
3751     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
3752     ppoll(&pfd, 1, 0, 0);
3753     return 0;
3754 }
3755 EOF
3756 if compile_prog "" "" ; then
3757   ppoll=yes
3758 fi
3759
3760 # check for prctl(PR_SET_TIMERSLACK , ... ) support
3761 prctl_pr_set_timerslack=no
3762 cat > $TMPC << EOF
3763 #include <sys/prctl.h>
3764
3765 int main(void)
3766 {
3767     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
3768     return 0;
3769 }
3770 EOF
3771 if compile_prog "" "" ; then
3772   prctl_pr_set_timerslack=yes
3773 fi
3774
3775 # check for epoll support
3776 epoll=no
3777 cat > $TMPC << EOF
3778 #include <sys/epoll.h>
3779
3780 int main(void)
3781 {
3782     epoll_create(0);
3783     return 0;
3784 }
3785 EOF
3786 if compile_prog "" "" ; then
3787   epoll=yes
3788 fi
3789
3790 # epoll_create1 is a later addition
3791 # so we must check separately for its presence
3792 epoll_create1=no
3793 cat > $TMPC << EOF
3794 #include <sys/epoll.h>
3795
3796 int main(void)
3797 {
3798     /* Note that we use epoll_create1 as a value, not as
3799      * a function being called. This is necessary so that on
3800      * old SPARC glibc versions where the function was present in
3801      * the library but not declared in the header file we will
3802      * fail the configure check. (Otherwise we will get a compiler
3803      * warning but not an error, and will proceed to fail the
3804      * qemu compile where we compile with -Werror.)
3805      */
3806     return (int)(uintptr_t)&epoll_create1;
3807 }
3808 EOF
3809 if compile_prog "" "" ; then
3810   epoll_create1=yes
3811 fi
3812
3813 # check for sendfile support
3814 sendfile=no
3815 cat > $TMPC << EOF
3816 #include <sys/sendfile.h>
3817
3818 int main(void)
3819 {
3820     return sendfile(0, 0, 0, 0);
3821 }
3822 EOF
3823 if compile_prog "" "" ; then
3824   sendfile=yes
3825 fi
3826
3827 # check for timerfd support (glibc 2.8 and newer)
3828 timerfd=no
3829 cat > $TMPC << EOF
3830 #include <sys/timerfd.h>
3831
3832 int main(void)
3833 {
3834     return(timerfd_create(CLOCK_REALTIME, 0));
3835 }
3836 EOF
3837 if compile_prog "" "" ; then
3838   timerfd=yes
3839 fi
3840
3841 # check for setns and unshare support
3842 setns=no
3843 cat > $TMPC << EOF
3844 #include <sched.h>
3845
3846 int main(void)
3847 {
3848     int ret;
3849     ret = setns(0, 0);
3850     ret = unshare(0);
3851     return ret;
3852 }
3853 EOF
3854 if compile_prog "" "" ; then
3855   setns=yes
3856 fi
3857
3858 # clock_adjtime probe
3859 clock_adjtime=no
3860 cat > $TMPC <<EOF
3861 #include <time.h>
3862 #include <sys/timex.h>
3863
3864 int main(void)
3865 {
3866     return clock_adjtime(0, 0);
3867 }
3868 EOF
3869 clock_adjtime=no
3870 if compile_prog "" "" ; then
3871   clock_adjtime=yes
3872 fi
3873
3874 # syncfs probe
3875 syncfs=no
3876 cat > $TMPC <<EOF
3877 #include <unistd.h>
3878
3879 int main(void)
3880 {
3881     return syncfs(0);
3882 }
3883 EOF
3884 syncfs=no
3885 if compile_prog "" "" ; then
3886   syncfs=yes
3887 fi
3888
3889 # Search for bswap_32 function
3890 byteswap_h=no
3891 cat > $TMPC << EOF
3892 #include <byteswap.h>
3893 int main(void) { return bswap_32(0); }
3894 EOF
3895 if compile_prog "" "" ; then
3896   byteswap_h=yes
3897 fi
3898
3899 # Search for bswap32 function
3900 bswap_h=no
3901 cat > $TMPC << EOF
3902 #include <sys/endian.h>
3903 #include <sys/types.h>
3904 #include <machine/bswap.h>
3905 int main(void) { return bswap32(0); }
3906 EOF
3907 if compile_prog "" "" ; then
3908   bswap_h=yes
3909 fi
3910
3911 # Check whether we have openpty() in either libc or libutil
3912 cat > $TMPC << EOF
3913 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
3914 int main(void) { return openpty(0, 0, 0, 0, 0); }
3915 EOF
3916
3917 have_openpty="no"
3918 if compile_prog "" "" ; then
3919   have_openpty="yes"
3920 else
3921   if compile_prog "" "-lutil" ; then
3922     have_openpty="yes"
3923   fi
3924 fi
3925
3926 ##########################################
3927 # spice probe
3928 if test "$spice_protocol" != "no" ; then
3929   spice_protocol_cflags=$($pkg_config --cflags spice-protocol 2>/dev/null)
3930   if $pkg_config --atleast-version=0.12.3 spice-protocol; then
3931     spice_protocol="yes"
3932   else
3933     if test "$spice_protocol" = "yes" ; then
3934       feature_not_found "spice_protocol" \
3935           "Install spice-protocol(>=0.12.3) devel"
3936     fi
3937     spice_protocol="no"
3938   fi
3939 fi
3940
3941 if test "$spice" != "no" ; then
3942   cat > $TMPC << EOF
3943 #include <spice.h>
3944 int main(void) { spice_server_new(); return 0; }
3945 EOF
3946   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
3947   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
3948   if $pkg_config --atleast-version=0.12.5 spice-server && \
3949      test "$spice_protocol" = "yes" && \
3950      compile_prog "$spice_cflags" "$spice_libs" ; then
3951     spice="yes"
3952   else
3953     if test "$spice" = "yes" ; then
3954       feature_not_found "spice" \
3955           "Install spice-server(>=0.12.5) devel"
3956     fi
3957     spice="no"
3958   fi
3959 fi
3960
3961 ##########################################
3962 # check if we have VSS SDK headers for win
3963
3964 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
3965         test "$vss_win32_sdk" != "no" ; then
3966   case "$vss_win32_sdk" in
3967     "")   vss_win32_include="-isystem $source_path" ;;
3968     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
3969           # handle path with spaces. So we symlink the headers into ".sdk/vss".
3970           vss_win32_include="-isystem $source_path/.sdk/vss"
3971           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
3972           ;;
3973     *)    vss_win32_include="-isystem $vss_win32_sdk"
3974   esac
3975   cat > $TMPC << EOF
3976 #define __MIDL_user_allocate_free_DEFINED__
3977 #include <inc/win2003/vss.h>
3978 int main(void) { return VSS_CTX_BACKUP; }
3979 EOF
3980   if compile_prog "$vss_win32_include" "" ; then
3981     guest_agent_with_vss="yes"
3982     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
3983     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
3984     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
3985   else
3986     if test "$vss_win32_sdk" != "" ; then
3987       echo "ERROR: Please download and install Microsoft VSS SDK:"
3988       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
3989       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
3990       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
3991       echo "ERROR: The headers are extracted in the directory \`inc'."
3992       feature_not_found "VSS support"
3993     fi
3994     guest_agent_with_vss="no"
3995   fi
3996 fi
3997
3998 ##########################################
3999 # lookup Windows platform SDK (if not specified)
4000 # The SDK is needed only to build .tlb (type library) file of guest agent
4001 # VSS provider from the source. It is usually unnecessary because the
4002 # pre-compiled .tlb file is included.
4003
4004 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4005         test "$guest_agent_with_vss" = "yes" ; then
4006   if test -z "$win_sdk"; then
4007     programfiles="$PROGRAMFILES"
4008     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4009     if test -n "$programfiles"; then
4010       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4011     else
4012       feature_not_found "Windows SDK"
4013     fi
4014   elif test "$win_sdk" = "no"; then
4015     win_sdk=""
4016   fi
4017 fi
4018
4019 ##########################################
4020 # check if mingw environment provides a recent ntddscsi.h
4021 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4022   cat > $TMPC << EOF
4023 #include <windows.h>
4024 #include <ntddscsi.h>
4025 int main(void) {
4026 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4027 #error Missing required ioctl definitions
4028 #endif
4029   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4030   return addr.Lun;
4031 }
4032 EOF
4033   if compile_prog "" "" ; then
4034     guest_agent_ntddscsi=yes
4035     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4036   fi
4037 fi
4038
4039 ##########################################
4040 # capstone
4041
4042 case "$capstone" in
4043   auto | enabled | internal)
4044     # Simpler to always update submodule, even if not needed.
4045     git_submodules="${git_submodules} capstone"
4046     ;;
4047 esac
4048
4049 ##########################################
4050 # check if we have fdatasync
4051
4052 fdatasync=no
4053 cat > $TMPC << EOF
4054 #include <unistd.h>
4055 int main(void) {
4056 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4057 return fdatasync(0);
4058 #else
4059 #error Not supported
4060 #endif
4061 }
4062 EOF
4063 if compile_prog "" "" ; then
4064     fdatasync=yes
4065 fi
4066
4067 ##########################################
4068 # check if we have madvise
4069
4070 madvise=no
4071 cat > $TMPC << EOF
4072 #include <sys/types.h>
4073 #include <sys/mman.h>
4074 #include <stddef.h>
4075 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4076 EOF
4077 if compile_prog "" "" ; then
4078     madvise=yes
4079 fi
4080
4081 ##########################################
4082 # check if we have posix_madvise
4083
4084 posix_madvise=no
4085 cat > $TMPC << EOF
4086 #include <sys/mman.h>
4087 #include <stddef.h>
4088 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4089 EOF
4090 if compile_prog "" "" ; then
4091     posix_madvise=yes
4092 fi
4093
4094 ##########################################
4095 # check if we have posix_memalign()
4096
4097 posix_memalign=no
4098 cat > $TMPC << EOF
4099 #include <stdlib.h>
4100 int main(void) {
4101     void *p;
4102     return posix_memalign(&p, 8, 8);
4103 }
4104 EOF
4105 if compile_prog "" "" ; then
4106     posix_memalign=yes
4107 fi
4108
4109 ##########################################
4110 # check if we have posix_syslog
4111
4112 posix_syslog=no
4113 cat > $TMPC << EOF
4114 #include <syslog.h>
4115 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4116 EOF
4117 if compile_prog "" "" ; then
4118     posix_syslog=yes
4119 fi
4120
4121 ##########################################
4122 # check if we have sem_timedwait
4123
4124 sem_timedwait=no
4125 cat > $TMPC << EOF
4126 #include <semaphore.h>
4127 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4128 EOF
4129 if compile_prog "" "" ; then
4130     sem_timedwait=yes
4131 fi
4132
4133 ##########################################
4134 # check if we have strchrnul
4135
4136 strchrnul=no
4137 cat > $TMPC << EOF
4138 #include <string.h>
4139 int main(void);
4140 // Use a haystack that the compiler shouldn't be able to constant fold
4141 char *haystack = (char*)&main;
4142 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4143 EOF
4144 if compile_prog "" "" ; then
4145     strchrnul=yes
4146 fi
4147
4148 #########################################
4149 # check if we have st_atim
4150
4151 st_atim=no
4152 cat > $TMPC << EOF
4153 #include <sys/stat.h>
4154 #include <stddef.h>
4155 int main(void) { return offsetof(struct stat, st_atim); }
4156 EOF
4157 if compile_prog "" "" ; then
4158     st_atim=yes
4159 fi
4160
4161 ##########################################
4162 # check if we have sigev_notify_thread_id
4163
4164 sigev_notify_thread_id=no
4165 cat > $TMPC << EOF
4166 #include <stddef.h>
4167 #include <signal.h>
4168 int main(void) { return offsetof(struct sigevent, sigev_notify_thread_id); }
4169 EOF
4170 if compile_prog "" "" ; then
4171     sigev_notify_thread_id=yes
4172 fi
4173
4174 ##########################################
4175 # check if trace backend exists
4176
4177 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4178 if test "$?" -ne 0 ; then
4179   error_exit "invalid trace backends" \
4180       "Please choose supported trace backends."
4181 fi
4182
4183 ##########################################
4184 # For 'ust' backend, test if ust headers are present
4185 if have_backend "ust"; then
4186   cat > $TMPC << EOF
4187 #include <lttng/tracepoint.h>
4188 int main(void) { return 0; }
4189 EOF
4190   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4191     if $pkg_config lttng-ust --exists; then
4192       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4193     else
4194       lttng_ust_libs="-llttng-ust -ldl"
4195     fi
4196     if $pkg_config liburcu-bp --exists; then
4197       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4198     else
4199       urcu_bp_libs="-lurcu-bp"
4200     fi
4201   else
4202     error_exit "Trace backend 'ust' missing lttng-ust header files"
4203   fi
4204 fi
4205
4206 ##########################################
4207 # For 'dtrace' backend, test if 'dtrace' command is present
4208 if have_backend "dtrace"; then
4209   if ! has 'dtrace' ; then
4210     error_exit "dtrace command is not found in PATH $PATH"
4211   fi
4212   trace_backend_stap="no"
4213   if has 'stap' ; then
4214     trace_backend_stap="yes"
4215
4216     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4217     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4218     # instead. QEMU --enable-modules depends on this because the SystemTap
4219     # semaphores are linked into the main binary and not the module's shared
4220     # object.
4221     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4222   fi
4223 fi
4224
4225 ##########################################
4226 # check and set a backend for coroutine
4227
4228 # We prefer ucontext, but it's not always possible. The fallback
4229 # is sigcontext. On Windows the only valid backend is the Windows
4230 # specific one.
4231
4232 ucontext_works=no
4233 if test "$darwin" != "yes"; then
4234   cat > $TMPC << EOF
4235 #include <ucontext.h>
4236 #ifdef __stub_makecontext
4237 #error Ignoring glibc stub makecontext which will always fail
4238 #endif
4239 int main(void) { makecontext(0, 0, 0); return 0; }
4240 EOF
4241   if compile_prog "" "" ; then
4242     ucontext_works=yes
4243   fi
4244 fi
4245
4246 if test "$coroutine" = ""; then
4247   if test "$mingw32" = "yes"; then
4248     coroutine=win32
4249   elif test "$ucontext_works" = "yes"; then
4250     coroutine=ucontext
4251   else
4252     coroutine=sigaltstack
4253   fi
4254 else
4255   case $coroutine in
4256   windows)
4257     if test "$mingw32" != "yes"; then
4258       error_exit "'windows' coroutine backend only valid for Windows"
4259     fi
4260     # Unfortunately the user visible backend name doesn't match the
4261     # coroutine-*.c filename for this case, so we have to adjust it here.
4262     coroutine=win32
4263     ;;
4264   ucontext)
4265     if test "$ucontext_works" != "yes"; then
4266       feature_not_found "ucontext"
4267     fi
4268     ;;
4269   sigaltstack)
4270     if test "$mingw32" = "yes"; then
4271       error_exit "only the 'windows' coroutine backend is valid for Windows"
4272     fi
4273     ;;
4274   *)
4275     error_exit "unknown coroutine backend $coroutine"
4276     ;;
4277   esac
4278 fi
4279
4280 if test "$coroutine_pool" = ""; then
4281   coroutine_pool=yes
4282 fi
4283
4284 if test "$debug_stack_usage" = "yes"; then
4285   if test "$coroutine_pool" = "yes"; then
4286     echo "WARN: disabling coroutine pool for stack usage debugging"
4287     coroutine_pool=no
4288   fi
4289 fi
4290
4291 ##################################################
4292 # SafeStack
4293
4294
4295 if test "$safe_stack" = "yes"; then
4296 cat > $TMPC << EOF
4297 int main(int argc, char *argv[])
4298 {
4299 #if ! __has_feature(safe_stack)
4300 #error SafeStack Disabled
4301 #endif
4302     return 0;
4303 }
4304 EOF
4305   flag="-fsanitize=safe-stack"
4306   # Check that safe-stack is supported and enabled.
4307   if compile_prog "-Werror $flag" "$flag"; then
4308     # Flag needed both at compilation and at linking
4309     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4310     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4311   else
4312     error_exit "SafeStack not supported by your compiler"
4313   fi
4314   if test "$coroutine" != "ucontext"; then
4315     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4316   fi
4317 else
4318 cat > $TMPC << EOF
4319 int main(int argc, char *argv[])
4320 {
4321 #if defined(__has_feature)
4322 #if __has_feature(safe_stack)
4323 #error SafeStack Enabled
4324 #endif
4325 #endif
4326     return 0;
4327 }
4328 EOF
4329 if test "$safe_stack" = "no"; then
4330   # Make sure that safe-stack is disabled
4331   if ! compile_prog "-Werror" ""; then
4332     # SafeStack was already enabled, try to explicitly remove the feature
4333     flag="-fno-sanitize=safe-stack"
4334     if ! compile_prog "-Werror $flag" "$flag"; then
4335       error_exit "Configure cannot disable SafeStack"
4336     fi
4337     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4338     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4339   fi
4340 else # "$safe_stack" = ""
4341   # Set safe_stack to yes or no based on pre-existing flags
4342   if compile_prog "-Werror" ""; then
4343     safe_stack="no"
4344   else
4345     safe_stack="yes"
4346     if test "$coroutine" != "ucontext"; then
4347       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4348     fi
4349   fi
4350 fi
4351 fi
4352
4353 ##########################################
4354 # check if we have open_by_handle_at
4355
4356 open_by_handle_at=no
4357 cat > $TMPC << EOF
4358 #include <fcntl.h>
4359 #if !defined(AT_EMPTY_PATH)
4360 # error missing definition
4361 #else
4362 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4363 #endif
4364 EOF
4365 if compile_prog "" "" ; then
4366     open_by_handle_at=yes
4367 fi
4368
4369 ########################################
4370 # check if we have linux/magic.h
4371
4372 linux_magic_h=no
4373 cat > $TMPC << EOF
4374 #include <linux/magic.h>
4375 int main(void) {
4376   return 0;
4377 }
4378 EOF
4379 if compile_prog "" "" ; then
4380     linux_magic_h=yes
4381 fi
4382
4383 ########################################
4384 # check if we have valgrind/valgrind.h
4385
4386 valgrind_h=no
4387 cat > $TMPC << EOF
4388 #include <valgrind/valgrind.h>
4389 int main(void) {
4390   return 0;
4391 }
4392 EOF
4393 if compile_prog "" "" ; then
4394     valgrind_h=yes
4395 fi
4396
4397 ########################################
4398 # check if environ is declared
4399
4400 has_environ=no
4401 cat > $TMPC << EOF
4402 #include <unistd.h>
4403 int main(void) {
4404     environ = 0;
4405     return 0;
4406 }
4407 EOF
4408 if compile_prog "" "" ; then
4409     has_environ=yes
4410 fi
4411
4412 ########################################
4413 # check if cpuid.h is usable.
4414
4415 cat > $TMPC << EOF
4416 #include <cpuid.h>
4417 int main(void) {
4418     unsigned a, b, c, d;
4419     int max = __get_cpuid_max(0, 0);
4420
4421     if (max >= 1) {
4422         __cpuid(1, a, b, c, d);
4423     }
4424
4425     if (max >= 7) {
4426         __cpuid_count(7, 0, a, b, c, d);
4427     }
4428
4429     return 0;
4430 }
4431 EOF
4432 if compile_prog "" "" ; then
4433     cpuid_h=yes
4434 fi
4435
4436 ##########################################
4437 # avx2 optimization requirement check
4438 #
4439 # There is no point enabling this if cpuid.h is not usable,
4440 # since we won't be able to select the new routines.
4441
4442 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
4443   cat > $TMPC << EOF
4444 #pragma GCC push_options
4445 #pragma GCC target("avx2")
4446 #include <cpuid.h>
4447 #include <immintrin.h>
4448 static int bar(void *a) {
4449     __m256i x = *(__m256i *)a;
4450     return _mm256_testz_si256(x, x);
4451 }
4452 int main(int argc, char *argv[]) { return bar(argv[0]); }
4453 EOF
4454   if compile_object "" ; then
4455     avx2_opt="yes"
4456   else
4457     avx2_opt="no"
4458   fi
4459 fi
4460
4461 ##########################################
4462 # avx512f optimization requirement check
4463 #
4464 # There is no point enabling this if cpuid.h is not usable,
4465 # since we won't be able to select the new routines.
4466 # by default, it is turned off.
4467 # if user explicitly want to enable it, check environment
4468
4469 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
4470   cat > $TMPC << EOF
4471 #pragma GCC push_options
4472 #pragma GCC target("avx512f")
4473 #include <cpuid.h>
4474 #include <immintrin.h>
4475 static int bar(void *a) {
4476     __m512i x = *(__m512i *)a;
4477     return _mm512_test_epi64_mask(x, x);
4478 }
4479 int main(int argc, char *argv[])
4480 {
4481         return bar(argv[0]);
4482 }
4483 EOF
4484   if ! compile_object "" ; then
4485     avx512f_opt="no"
4486   fi
4487 else
4488   avx512f_opt="no"
4489 fi
4490
4491 ########################################
4492 # check if __[u]int128_t is usable.
4493
4494 int128=no
4495 cat > $TMPC << EOF
4496 __int128_t a;
4497 __uint128_t b;
4498 int main (void) {
4499   a = a + b;
4500   b = a * b;
4501   a = a * a;
4502   return 0;
4503 }
4504 EOF
4505 if compile_prog "" "" ; then
4506     int128=yes
4507 fi
4508
4509 #########################################
4510 # See if 128-bit atomic operations are supported.
4511
4512 atomic128=no
4513 if test "$int128" = "yes"; then
4514   cat > $TMPC << EOF
4515 int main(void)
4516 {
4517   unsigned __int128 x = 0, y = 0;
4518   y = __atomic_load(&x, 0);
4519   __atomic_store(&x, y, 0);
4520   __atomic_compare_exchange(&x, &y, x, 0, 0, 0);
4521   return 0;
4522 }
4523 EOF
4524   if compile_prog "" "" ; then
4525     atomic128=yes
4526   fi
4527 fi
4528
4529 cmpxchg128=no
4530 if test "$int128" = yes && test "$atomic128" = no; then
4531   cat > $TMPC << EOF
4532 int main(void)
4533 {
4534   unsigned __int128 x = 0, y = 0;
4535   __sync_val_compare_and_swap_16(&x, y, x);
4536   return 0;
4537 }
4538 EOF
4539   if compile_prog "" "" ; then
4540     cmpxchg128=yes
4541   fi
4542 fi
4543
4544 #########################################
4545 # See if 64-bit atomic operations are supported.
4546 # Note that without __atomic builtins, we can only
4547 # assume atomic loads/stores max at pointer size.
4548
4549 cat > $TMPC << EOF
4550 #include <stdint.h>
4551 int main(void)
4552 {
4553   uint64_t x = 0, y = 0;
4554 #ifdef __ATOMIC_RELAXED
4555   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
4556   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
4557   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
4558   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
4559   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
4560 #else
4561   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
4562   __sync_lock_test_and_set(&x, y);
4563   __sync_val_compare_and_swap(&x, y, 0);
4564   __sync_fetch_and_add(&x, y);
4565 #endif
4566   return 0;
4567 }
4568 EOF
4569 if compile_prog "" "" ; then
4570   atomic64=yes
4571 fi
4572
4573 #########################################
4574 # See if --dynamic-list is supported by the linker
4575 ld_dynamic_list="no"
4576 if test "$static" = "no" ; then
4577     cat > $TMPTXT <<EOF
4578 {
4579   foo;
4580 };
4581 EOF
4582
4583     cat > $TMPC <<EOF
4584 #include <stdio.h>
4585 void foo(void);
4586
4587 void foo(void)
4588 {
4589   printf("foo\n");
4590 }
4591
4592 int main(void)
4593 {
4594   foo();
4595   return 0;
4596 }
4597 EOF
4598
4599     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
4600         ld_dynamic_list="yes"
4601     fi
4602 fi
4603
4604 #########################################
4605 # See if -exported_symbols_list is supported by the linker
4606
4607 ld_exported_symbols_list="no"
4608 if test "$static" = "no" ; then
4609     cat > $TMPTXT <<EOF
4610   _foo
4611 EOF
4612
4613     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
4614         ld_exported_symbols_list="yes"
4615     fi
4616 fi
4617
4618 if  test "$plugins" = "yes" &&
4619     test "$ld_dynamic_list" = "no" &&
4620     test "$ld_exported_symbols_list" = "no" ; then
4621   error_exit \
4622       "Plugin support requires dynamic linking and specifying a set of symbols " \
4623       "that are exported to plugins. Unfortunately your linker doesn't " \
4624       "support the flag (--dynamic-list or -exported_symbols_list) used " \
4625       "for this purpose. You can't build with --static."
4626 fi
4627
4628 ########################################
4629 # check if getauxval is available.
4630
4631 getauxval=no
4632 cat > $TMPC << EOF
4633 #include <sys/auxv.h>
4634 int main(void) {
4635   return getauxval(AT_HWCAP) == 0;
4636 }
4637 EOF
4638 if compile_prog "" "" ; then
4639     getauxval=yes
4640 fi
4641
4642 ########################################
4643 # check if ccache is interfering with
4644 # semantic analysis of macros
4645
4646 unset CCACHE_CPP2
4647 ccache_cpp2=no
4648 cat > $TMPC << EOF
4649 static const int Z = 1;
4650 #define fn() ({ Z; })
4651 #define TAUT(X) ((X) == Z)
4652 #define PAREN(X, Y) (X == Y)
4653 #define ID(X) (X)
4654 int main(int argc, char *argv[])
4655 {
4656     int x = 0, y = 0;
4657     x = ID(x);
4658     x = fn();
4659     fn();
4660     if (PAREN(x, y)) return 0;
4661     if (TAUT(Z)) return 0;
4662     return 0;
4663 }
4664 EOF
4665
4666 if ! compile_object "-Werror"; then
4667     ccache_cpp2=yes
4668 fi
4669
4670 #################################################
4671 # clang does not support glibc + FORTIFY_SOURCE.
4672
4673 if test "$fortify_source" != "no"; then
4674   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
4675     fortify_source="no";
4676   elif test -n "$cxx" && has $cxx &&
4677        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
4678     fortify_source="no";
4679   else
4680     fortify_source="yes"
4681   fi
4682 fi
4683
4684 ###############################################
4685 # Check if copy_file_range is provided by glibc
4686 have_copy_file_range=no
4687 cat > $TMPC << EOF
4688 #include <unistd.h>
4689 int main(void) {
4690   copy_file_range(0, NULL, 0, NULL, 0, 0);
4691   return 0;
4692 }
4693 EOF
4694 if compile_prog "" "" ; then
4695     have_copy_file_range=yes
4696 fi
4697
4698 ##########################################
4699 # check if struct fsxattr is available via linux/fs.h
4700
4701 have_fsxattr=no
4702 cat > $TMPC << EOF
4703 #include <linux/fs.h>
4704 struct fsxattr foo;
4705 int main(void) {
4706   return 0;
4707 }
4708 EOF
4709 if compile_prog "" "" ; then
4710     have_fsxattr=yes
4711 fi
4712
4713 ##########################################
4714 # check for usable membarrier system call
4715 if test "$membarrier" = "yes"; then
4716     have_membarrier=no
4717     if test "$mingw32" = "yes" ; then
4718         have_membarrier=yes
4719     elif test "$linux" = "yes" ; then
4720         cat > $TMPC << EOF
4721     #include <linux/membarrier.h>
4722     #include <sys/syscall.h>
4723     #include <unistd.h>
4724     #include <stdlib.h>
4725     int main(void) {
4726         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
4727         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
4728         exit(0);
4729     }
4730 EOF
4731         if compile_prog "" "" ; then
4732             have_membarrier=yes
4733         fi
4734     fi
4735     if test "$have_membarrier" = "no"; then
4736       feature_not_found "membarrier" "membarrier system call not available"
4737     fi
4738 else
4739     # Do not enable it by default even for Mingw32, because it doesn't
4740     # work on Wine.
4741     membarrier=no
4742 fi
4743
4744 ##########################################
4745 # check if rtnetlink.h exists and is useful
4746 have_rtnetlink=no
4747 cat > $TMPC << EOF
4748 #include <linux/rtnetlink.h>
4749 int main(void) {
4750   return IFLA_PROTO_DOWN;
4751 }
4752 EOF
4753 if compile_prog "" "" ; then
4754     have_rtnetlink=yes
4755 fi
4756
4757 ##########################################
4758 # check for usable AF_VSOCK environment
4759 have_af_vsock=no
4760 cat > $TMPC << EOF
4761 #include <errno.h>
4762 #include <sys/types.h>
4763 #include <sys/socket.h>
4764 #if !defined(AF_VSOCK)
4765 # error missing AF_VSOCK flag
4766 #endif
4767 #include <linux/vm_sockets.h>
4768 int main(void) {
4769     int sock, ret;
4770     struct sockaddr_vm svm;
4771     socklen_t len = sizeof(svm);
4772     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
4773     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
4774     if ((ret == -1) && (errno == ENOTCONN)) {
4775         return 0;
4776     }
4777     return -1;
4778 }
4779 EOF
4780 if compile_prog "" "" ; then
4781     have_af_vsock=yes
4782 fi
4783
4784 ##########################################
4785 # check for usable AF_ALG environment
4786 have_afalg=no
4787 cat > $TMPC << EOF
4788 #include <errno.h>
4789 #include <sys/types.h>
4790 #include <sys/socket.h>
4791 #include <linux/if_alg.h>
4792 int main(void) {
4793     int sock;
4794     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
4795     return sock;
4796 }
4797 EOF
4798 if compile_prog "" "" ; then
4799     have_afalg=yes
4800 fi
4801 if test "$crypto_afalg" = "yes"
4802 then
4803     if test "$have_afalg" != "yes"
4804     then
4805         error_exit "AF_ALG requested but could not be detected"
4806     fi
4807 fi
4808
4809
4810 #################################################
4811 # check for sysmacros.h
4812
4813 have_sysmacros=no
4814 cat > $TMPC << EOF
4815 #include <sys/sysmacros.h>
4816 int main(void) {
4817     return makedev(0, 0);
4818 }
4819 EOF
4820 if compile_prog "" "" ; then
4821     have_sysmacros=yes
4822 fi
4823
4824 ##########################################
4825 # check for utmpx.h, it is missing e.g. on OpenBSD
4826
4827 have_utmpx=no
4828 cat > $TMPC << EOF
4829 #include <utmpx.h>
4830 struct utmpx user_info;
4831 int main(void) {
4832     return 0;
4833 }
4834 EOF
4835 if compile_prog "" "" ; then
4836     have_utmpx=yes
4837 fi
4838
4839 ##########################################
4840 # check for getrandom()
4841
4842 have_getrandom=no
4843 cat > $TMPC << EOF
4844 #include <sys/random.h>
4845 int main(void) {
4846     return getrandom(0, 0, GRND_NONBLOCK);
4847 }
4848 EOF
4849 if compile_prog "" "" ; then
4850     have_getrandom=yes
4851 fi
4852
4853 ##########################################
4854 # checks for sanitizers
4855
4856 have_asan=no
4857 have_ubsan=no
4858 have_asan_iface_h=no
4859 have_asan_iface_fiber=no
4860
4861 if test "$sanitizers" = "yes" ; then
4862   write_c_skeleton
4863   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
4864       have_asan=yes
4865   fi
4866
4867   # we could use a simple skeleton for flags checks, but this also
4868   # detect the static linking issue of ubsan, see also:
4869   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
4870   cat > $TMPC << EOF
4871 #include <stdlib.h>
4872 int main(void) {
4873     void *tmp = malloc(10);
4874     if (tmp != NULL) {
4875         return *(int *)(tmp + 2);
4876     }
4877     return 1;
4878 }
4879 EOF
4880   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
4881       have_ubsan=yes
4882   fi
4883
4884   if check_include "sanitizer/asan_interface.h" ; then
4885       have_asan_iface_h=yes
4886   fi
4887
4888   cat > $TMPC << EOF
4889 #include <sanitizer/asan_interface.h>
4890 int main(void) {
4891   __sanitizer_start_switch_fiber(0, 0, 0);
4892   return 0;
4893 }
4894 EOF
4895   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
4896       have_asan_iface_fiber=yes
4897   fi
4898 fi
4899
4900 ##########################################
4901 # checks for fuzzer
4902 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
4903   write_c_fuzzer_skeleton
4904   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
4905     have_fuzzer=yes
4906   else
4907     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
4908     exit 1
4909   fi
4910 fi
4911
4912 # Thread sanitizer is, for now, much noisier than the other sanitizers;
4913 # keep it separate until that is not the case.
4914 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
4915   error_exit "TSAN is not supported with other sanitiziers."
4916 fi
4917 have_tsan=no
4918 have_tsan_iface_fiber=no
4919 if test "$tsan" = "yes" ; then
4920   write_c_skeleton
4921   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
4922       have_tsan=yes
4923   fi
4924   cat > $TMPC << EOF
4925 #include <sanitizer/tsan_interface.h>
4926 int main(void) {
4927   __tsan_create_fiber(0);
4928   return 0;
4929 }
4930 EOF
4931   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
4932       have_tsan_iface_fiber=yes
4933   fi
4934 fi
4935
4936 ##########################################
4937 # check for libpmem
4938
4939 if test "$libpmem" != "no"; then
4940         if $pkg_config --exists "libpmem"; then
4941                 libpmem="yes"
4942                 libpmem_libs=$($pkg_config --libs libpmem)
4943                 libpmem_cflags=$($pkg_config --cflags libpmem)
4944         else
4945                 if test "$libpmem" = "yes" ; then
4946                         feature_not_found "libpmem" "Install nvml or pmdk"
4947                 fi
4948                 libpmem="no"
4949         fi
4950 fi
4951
4952 ##########################################
4953 # check for libdaxctl
4954
4955 if test "$libdaxctl" != "no"; then
4956         if $pkg_config --atleast-version=57 "libdaxctl"; then
4957                 libdaxctl="yes"
4958                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
4959                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
4960         else
4961                 if test "$libdaxctl" = "yes" ; then
4962                         feature_not_found "libdaxctl" "Install libdaxctl"
4963                 fi
4964                 libdaxctl="no"
4965         fi
4966 fi
4967
4968 ##########################################
4969 # check for slirp
4970
4971 case "$slirp" in
4972   auto | enabled | internal)
4973     # Simpler to always update submodule, even if not needed.
4974     git_submodules="${git_submodules} slirp"
4975     ;;
4976 esac
4977
4978 # Check for slirp smbd dupport
4979 : ${smbd=${SMBD-/usr/sbin/smbd}}
4980 if test "$slirp_smbd" != "no" ; then
4981   if test "$mingw32" = "yes" ; then
4982     if test "$slirp_smbd" = "yes" ; then
4983       error_exit "Host smbd not supported on this platform."
4984     fi
4985     slirp_smbd=no
4986   else
4987     slirp_smbd=yes
4988   fi
4989 fi
4990
4991 ##########################################
4992 # check for usable __NR_keyctl syscall
4993
4994 if test "$linux" = "yes" ; then
4995
4996     have_keyring=no
4997     cat > $TMPC << EOF
4998 #include <errno.h>
4999 #include <asm/unistd.h>
5000 #include <linux/keyctl.h>
5001 #include <unistd.h>
5002 int main(void) {
5003     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5004 }
5005 EOF
5006     if compile_prog "" "" ; then
5007         have_keyring=yes
5008     fi
5009 fi
5010 if test "$secret_keyring" != "no"
5011 then
5012     if test "$have_keyring" = "yes"
5013     then
5014         secret_keyring=yes
5015     else
5016         if test "$secret_keyring" = "yes"
5017         then
5018             error_exit "syscall __NR_keyctl requested, \
5019 but not implemented on your system"
5020         else
5021             secret_keyring=no
5022         fi
5023     fi
5024 fi
5025
5026 ##########################################
5027 # End of CC checks
5028 # After here, no more $cc or $ld runs
5029
5030 write_c_skeleton
5031
5032 if test "$gcov" = "yes" ; then
5033   :
5034 elif test "$fortify_source" = "yes" ; then
5035   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5036   debug=no
5037 fi
5038
5039 case "$ARCH" in
5040 alpha)
5041   # Ensure there's only a single GP
5042   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5043 ;;
5044 esac
5045
5046 if test "$gprof" = "yes" ; then
5047   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5048   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5049 fi
5050
5051 if test "$have_asan" = "yes"; then
5052   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5053   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5054   if test "$have_asan_iface_h" = "no" ; then
5055       echo "ASAN build enabled, but ASAN header missing." \
5056            "Without code annotation, the report may be inferior."
5057   elif test "$have_asan_iface_fiber" = "no" ; then
5058       echo "ASAN build enabled, but ASAN header is too old." \
5059            "Without code annotation, the report may be inferior."
5060   fi
5061 fi
5062 if test "$have_tsan" = "yes" ; then
5063   if test "$have_tsan_iface_fiber" = "yes" ; then
5064     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5065     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5066   else
5067     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5068   fi
5069 elif test "$tsan" = "yes" ; then
5070   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5071 fi
5072 if test "$have_ubsan" = "yes"; then
5073   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5074   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5075 fi
5076
5077 ##########################################
5078
5079 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5080 if test "$solaris" = "no" && test "$tsan" = "no"; then
5081     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5082         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5083     fi
5084 fi
5085
5086 # Use ASLR, no-SEH and DEP if available
5087 if test "$mingw32" = "yes" ; then
5088     flags="--no-seh --nxcompat"
5089
5090     # Disable ASLR for debug builds to allow debugging with gdb
5091     if test "$debug" = "no" ; then
5092         flags="--dynamicbase $flags"
5093     fi
5094
5095     for flag in $flags; do
5096         if ld_has $flag ; then
5097             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5098         fi
5099     done
5100 fi
5101
5102 # We can only support ivshmem if we have eventfd
5103 if [ "$eventfd" = "yes" ]; then
5104   ivshmem=yes
5105 fi
5106
5107 # Probe for guest agent support/options
5108
5109 if [ "$guest_agent" != "no" ]; then
5110   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5111       guest_agent=no
5112   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5113       guest_agent=yes
5114   elif [ "$guest_agent" != yes ]; then
5115       guest_agent=no
5116   else
5117       error_exit "Guest agent is not supported on this platform"
5118   fi
5119 fi
5120
5121 # Guest agent Windows MSI package
5122
5123 if test "$QEMU_GA_MANUFACTURER" = ""; then
5124   QEMU_GA_MANUFACTURER=QEMU
5125 fi
5126 if test "$QEMU_GA_DISTRO" = ""; then
5127   QEMU_GA_DISTRO=Linux
5128 fi
5129 if test "$QEMU_GA_VERSION" = ""; then
5130     QEMU_GA_VERSION=$(cat $source_path/VERSION)
5131 fi
5132
5133 QEMU_GA_MSI_MINGW_DLL_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
5134
5135 # Mac OS X ships with a broken assembler
5136 roms=
5137 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5138         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5139         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5140     # Different host OS linkers have different ideas about the name of the ELF
5141     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5142     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5143     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5144         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5145             ld_i386_emulation="$emu"
5146             roms="optionrom"
5147             break
5148         fi
5149     done
5150 fi
5151
5152 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5153 # or -march=z10 (which is the lowest architecture level that Clang supports)
5154 if test "$cpu" = "s390x" ; then
5155   write_c_skeleton
5156   compile_prog "-march=z900" ""
5157   has_z900=$?
5158   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
5159     if [ $has_z900 != 0 ]; then
5160       echo "WARNING: Your compiler does not support the z900!"
5161       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
5162     fi
5163     roms="$roms s390-ccw"
5164     # SLOF is required for building the s390-ccw firmware on s390x,
5165     # since it is using the libnet code from SLOF for network booting.
5166     git_submodules="${git_submodules} roms/SLOF"
5167   fi
5168 fi
5169
5170 # Check that the C++ compiler exists and works with the C compiler.
5171 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5172 if has $cxx; then
5173     cat > $TMPC <<EOF
5174 int c_function(void);
5175 int main(void) { return c_function(); }
5176 EOF
5177
5178     compile_object
5179
5180     cat > $TMPCXX <<EOF
5181 extern "C" {
5182    int c_function(void);
5183 }
5184 int c_function(void) { return 42; }
5185 EOF
5186
5187     update_cxxflags
5188
5189     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5190         # C++ compiler $cxx works ok with C compiler $cc
5191         :
5192     else
5193         echo "C++ compiler $cxx does not work with C compiler $cc"
5194         echo "Disabling C++ specific optional code"
5195         cxx=
5196     fi
5197 else
5198     echo "No C++ compiler available; disabling C++ specific optional code"
5199     cxx=
5200 fi
5201
5202 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
5203     exit 1
5204 fi
5205
5206 config_host_mak="config-host.mak"
5207
5208 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5209 echo >> $config_host_mak
5210
5211 echo all: >> $config_host_mak
5212 echo "GIT=$git" >> $config_host_mak
5213 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5214 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
5215
5216 echo "ARCH=$ARCH" >> $config_host_mak
5217
5218 if test "$debug_tcg" = "yes" ; then
5219   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5220 fi
5221 if test "$strip_opt" = "yes" ; then
5222   echo "STRIP=${strip}" >> $config_host_mak
5223 fi
5224 if test "$bigendian" = "yes" ; then
5225   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5226 fi
5227 if test "$mingw32" = "yes" ; then
5228   echo "CONFIG_WIN32=y" >> $config_host_mak
5229   if test "$guest_agent_with_vss" = "yes" ; then
5230     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5231     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5232     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5233   fi
5234   if test "$guest_agent_ntddscsi" = "yes" ; then
5235     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5236   fi
5237   echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5238   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5239   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5240   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5241 else
5242   echo "CONFIG_POSIX=y" >> $config_host_mak
5243 fi
5244
5245 if test "$linux" = "yes" ; then
5246   echo "CONFIG_LINUX=y" >> $config_host_mak
5247 fi
5248
5249 if test "$darwin" = "yes" ; then
5250   echo "CONFIG_DARWIN=y" >> $config_host_mak
5251 fi
5252
5253 if test "$solaris" = "yes" ; then
5254   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5255 fi
5256 if test "$haiku" = "yes" ; then
5257   echo "CONFIG_HAIKU=y" >> $config_host_mak
5258 fi
5259 if test "$static" = "yes" ; then
5260   echo "CONFIG_STATIC=y" >> $config_host_mak
5261 fi
5262 if test "$profiler" = "yes" ; then
5263   echo "CONFIG_PROFILER=y" >> $config_host_mak
5264 fi
5265 if test "$want_tools" = "yes" ; then
5266   echo "CONFIG_TOOLS=y" >> $config_host_mak
5267 fi
5268 if test "$guest_agent" = "yes" ; then
5269   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5270 fi
5271 if test "$slirp_smbd" = "yes" ; then
5272   echo "CONFIG_SLIRP_SMBD=y" >> $config_host_mak
5273   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5274 fi
5275 if test "$vde" = "yes" ; then
5276   echo "CONFIG_VDE=y" >> $config_host_mak
5277   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5278 fi
5279 if test "$netmap" = "yes" ; then
5280   echo "CONFIG_NETMAP=y" >> $config_host_mak
5281 fi
5282 if test "$l2tpv3" = "yes" ; then
5283   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5284 fi
5285 if test "$gprof" = "yes" ; then
5286   echo "CONFIG_GPROF=y" >> $config_host_mak
5287 fi
5288 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5289 for drv in $audio_drv_list; do
5290     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5291     echo "$def=y" >> $config_host_mak
5292 done
5293 if test "$alsa" = "yes" ; then
5294     echo "CONFIG_ALSA=y" >> $config_host_mak
5295 fi
5296 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
5297 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
5298 if test "$libpulse" = "yes" ; then
5299     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
5300 fi
5301 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
5302 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
5303 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
5304 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
5305 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
5306 if test "$libjack" = "yes" ; then
5307     echo "CONFIG_LIBJACK=y" >> $config_host_mak
5308 fi
5309 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
5310 if test "$audio_win_int" = "yes" ; then
5311   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
5312 fi
5313 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
5314 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
5315 if test "$xfs" = "yes" ; then
5316   echo "CONFIG_XFS=y" >> $config_host_mak
5317 fi
5318 qemu_version=$(head $source_path/VERSION)
5319 echo "PKGVERSION=$pkgversion" >>$config_host_mak
5320 echo "SRC_PATH=$source_path" >> $config_host_mak
5321 echo "TARGET_DIRS=$target_list" >> $config_host_mak
5322 if test "$modules" = "yes"; then
5323   # $shacmd can generate a hash started with digit, which the compiler doesn't
5324   # like as an symbol. So prefix it with an underscore
5325   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
5326   echo "CONFIG_MODULES=y" >> $config_host_mak
5327 fi
5328 if test "$module_upgrades" = "yes"; then
5329   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
5330 fi
5331 if test "$pipe2" = "yes" ; then
5332   echo "CONFIG_PIPE2=y" >> $config_host_mak
5333 fi
5334 if test "$accept4" = "yes" ; then
5335   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
5336 fi
5337 if test "$splice" = "yes" ; then
5338   echo "CONFIG_SPLICE=y" >> $config_host_mak
5339 fi
5340 if test "$eventfd" = "yes" ; then
5341   echo "CONFIG_EVENTFD=y" >> $config_host_mak
5342 fi
5343 if test "$memfd" = "yes" ; then
5344   echo "CONFIG_MEMFD=y" >> $config_host_mak
5345 fi
5346 if test "$have_usbfs" = "yes" ; then
5347   echo "CONFIG_USBFS=y" >> $config_host_mak
5348 fi
5349 if test "$fallocate" = "yes" ; then
5350   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
5351 fi
5352 if test "$fallocate_punch_hole" = "yes" ; then
5353   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
5354 fi
5355 if test "$fallocate_zero_range" = "yes" ; then
5356   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
5357 fi
5358 if test "$posix_fallocate" = "yes" ; then
5359   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
5360 fi
5361 if test "$sync_file_range" = "yes" ; then
5362   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
5363 fi
5364 if test "$fiemap" = "yes" ; then
5365   echo "CONFIG_FIEMAP=y" >> $config_host_mak
5366 fi
5367 if test "$dup3" = "yes" ; then
5368   echo "CONFIG_DUP3=y" >> $config_host_mak
5369 fi
5370 if test "$ppoll" = "yes" ; then
5371   echo "CONFIG_PPOLL=y" >> $config_host_mak
5372 fi
5373 if test "$prctl_pr_set_timerslack" = "yes" ; then
5374   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
5375 fi
5376 if test "$epoll" = "yes" ; then
5377   echo "CONFIG_EPOLL=y" >> $config_host_mak
5378 fi
5379 if test "$epoll_create1" = "yes" ; then
5380   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
5381 fi
5382 if test "$sendfile" = "yes" ; then
5383   echo "CONFIG_SENDFILE=y" >> $config_host_mak
5384 fi
5385 if test "$timerfd" = "yes" ; then
5386   echo "CONFIG_TIMERFD=y" >> $config_host_mak
5387 fi
5388 if test "$setns" = "yes" ; then
5389   echo "CONFIG_SETNS=y" >> $config_host_mak
5390 fi
5391 if test "$clock_adjtime" = "yes" ; then
5392   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
5393 fi
5394 if test "$syncfs" = "yes" ; then
5395   echo "CONFIG_SYNCFS=y" >> $config_host_mak
5396 fi
5397 if test "$inotify" = "yes" ; then
5398   echo "CONFIG_INOTIFY=y" >> $config_host_mak
5399 fi
5400 if test "$inotify1" = "yes" ; then
5401   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
5402 fi
5403 if test "$sem_timedwait" = "yes" ; then
5404   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
5405 fi
5406 if test "$strchrnul" = "yes" ; then
5407   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
5408 fi
5409 if test "$st_atim" = "yes" ; then
5410   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
5411 fi
5412 if test "$sigev_notify_thread_id" = "yes" ; then
5413   echo "HAVE_SIGEV_NOTIFY_THREAD_ID=y" >> $config_host_mak
5414 fi
5415 if test "$byteswap_h" = "yes" ; then
5416   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
5417 fi
5418 if test "$bswap_h" = "yes" ; then
5419   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
5420 fi
5421 if test "$gio" = "yes" ; then
5422     echo "CONFIG_GIO=y" >> $config_host_mak
5423     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
5424     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
5425 fi
5426 if test "$gdbus_codegen" != "" ; then
5427     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
5428 fi
5429 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
5430 if test "$have_broken_size_max" = "yes" ; then
5431     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
5432 fi
5433 if test "$have_openpty" = "yes" ; then
5434     echo "HAVE_OPENPTY=y" >> $config_host_mak
5435 fi
5436
5437 # Work around a system header bug with some kernel/XFS header
5438 # versions where they both try to define 'struct fsxattr':
5439 # xfs headers will not try to redefine structs from linux headers
5440 # if this macro is set.
5441 if test "$have_fsxattr" = "yes" ; then
5442     echo "HAVE_FSXATTR=y" >> $config_host_mak
5443 fi
5444 if test "$have_copy_file_range" = "yes" ; then
5445     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
5446 fi
5447 if test "$xen" = "enabled" ; then
5448   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
5449   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
5450   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
5451   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
5452 fi
5453 if test "$linux_aio" = "yes" ; then
5454   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
5455 fi
5456 if test "$linux_io_uring" = "yes" ; then
5457   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
5458   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
5459   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
5460 fi
5461 if test "$vhost_scsi" = "yes" ; then
5462   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
5463 fi
5464 if test "$vhost_net" = "yes" ; then
5465   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
5466 fi
5467 if test "$vhost_net_user" = "yes" ; then
5468   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
5469 fi
5470 if test "$vhost_net_vdpa" = "yes" ; then
5471   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
5472 fi
5473 if test "$vhost_crypto" = "yes" ; then
5474   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
5475 fi
5476 if test "$vhost_vsock" = "yes" ; then
5477   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
5478   if test "$vhost_user" = "yes" ; then
5479     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
5480   fi
5481 fi
5482 if test "$vhost_kernel" = "yes" ; then
5483   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
5484 fi
5485 if test "$vhost_user" = "yes" ; then
5486   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
5487 fi
5488 if test "$vhost_vdpa" = "yes" ; then
5489   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
5490 fi
5491 if test "$vhost_user_fs" = "yes" ; then
5492   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
5493 fi
5494 if test "$iovec" = "yes" ; then
5495   echo "CONFIG_IOVEC=y" >> $config_host_mak
5496 fi
5497 if test "$membarrier" = "yes" ; then
5498   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
5499 fi
5500 if test "$signalfd" = "yes" ; then
5501   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
5502 fi
5503 if test "$optreset" = "yes" ; then
5504   echo "HAVE_OPTRESET=y" >> $config_host_mak
5505 fi
5506 if test "$tcg" = "enabled" -a "$tcg_interpreter" = "true" ; then
5507   echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
5508 fi
5509 if test "$fdatasync" = "yes" ; then
5510   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
5511 fi
5512 if test "$madvise" = "yes" ; then
5513   echo "CONFIG_MADVISE=y" >> $config_host_mak
5514 fi
5515 if test "$posix_madvise" = "yes" ; then
5516   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
5517 fi
5518 if test "$posix_memalign" = "yes" ; then
5519   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
5520 fi
5521
5522 if test "$spice_protocol" = "yes" ; then
5523   echo "CONFIG_SPICE_PROTOCOL=y" >> $config_host_mak
5524   echo "SPICE_PROTOCOL_CFLAGS=$spice_protocol_cflags" >> $config_host_mak
5525 fi
5526 if test "$spice" = "yes" ; then
5527   echo "CONFIG_SPICE=y" >> $config_host_mak
5528   echo "SPICE_CFLAGS=$spice_cflags $spice_protocol_cflags" >> $config_host_mak
5529   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
5530 fi
5531
5532 if test "$opengl" = "yes" ; then
5533   echo "CONFIG_OPENGL=y" >> $config_host_mak
5534   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
5535   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
5536 fi
5537
5538 if test "$gbm" = "yes" ; then
5539     echo "CONFIG_GBM=y" >> $config_host_mak
5540     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
5541     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
5542 fi
5543
5544
5545 if test "$avx2_opt" = "yes" ; then
5546   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
5547 fi
5548
5549 if test "$avx512f_opt" = "yes" ; then
5550   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
5551 fi
5552
5553 # XXX: suppress that
5554 if [ "$bsd" = "yes" ] ; then
5555   echo "CONFIG_BSD=y" >> $config_host_mak
5556 fi
5557
5558 if test "$qom_cast_debug" = "yes" ; then
5559   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
5560 fi
5561
5562 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
5563 if test "$coroutine_pool" = "yes" ; then
5564   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
5565 else
5566   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
5567 fi
5568
5569 if test "$debug_stack_usage" = "yes" ; then
5570   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
5571 fi
5572
5573 if test "$crypto_afalg" = "yes" ; then
5574   echo "CONFIG_AF_ALG=y" >> $config_host_mak
5575 fi
5576
5577 if test "$open_by_handle_at" = "yes" ; then
5578   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
5579 fi
5580
5581 if test "$linux_magic_h" = "yes" ; then
5582   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
5583 fi
5584
5585 if test "$valgrind_h" = "yes" ; then
5586   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
5587 fi
5588
5589 if test "$have_asan_iface_fiber" = "yes" ; then
5590     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
5591 fi
5592
5593 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
5594     echo "CONFIG_TSAN=y" >> $config_host_mak
5595 fi
5596
5597 if test "$has_environ" = "yes" ; then
5598   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
5599 fi
5600
5601 if test "$cpuid_h" = "yes" ; then
5602   echo "CONFIG_CPUID_H=y" >> $config_host_mak
5603 fi
5604
5605 if test "$int128" = "yes" ; then
5606   echo "CONFIG_INT128=y" >> $config_host_mak
5607 fi
5608
5609 if test "$atomic128" = "yes" ; then
5610   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
5611 fi
5612
5613 if test "$cmpxchg128" = "yes" ; then
5614   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
5615 fi
5616
5617 if test "$atomic64" = "yes" ; then
5618   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
5619 fi
5620
5621 if test "$getauxval" = "yes" ; then
5622   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
5623 fi
5624
5625 if test "$libssh" = "yes" ; then
5626   echo "CONFIG_LIBSSH=y" >> $config_host_mak
5627   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
5628   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
5629 fi
5630
5631 if test "$live_block_migration" = "yes" ; then
5632   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
5633 fi
5634
5635 if test "$tpm" = "yes"; then
5636   echo 'CONFIG_TPM=y' >> $config_host_mak
5637 fi
5638
5639 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
5640 if have_backend "nop"; then
5641   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
5642 fi
5643 if have_backend "simple"; then
5644   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
5645   # Set the appropriate trace file.
5646   trace_file="\"$trace_file-\" FMT_pid"
5647 fi
5648 if have_backend "log"; then
5649   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
5650 fi
5651 if have_backend "ust"; then
5652   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
5653   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
5654   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
5655 fi
5656 if have_backend "dtrace"; then
5657   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
5658   if test "$trace_backend_stap" = "yes" ; then
5659     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
5660   fi
5661 fi
5662 if have_backend "ftrace"; then
5663   if test "$linux" = "yes" ; then
5664     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
5665   else
5666     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
5667   fi
5668 fi
5669 if have_backend "syslog"; then
5670   if test "$posix_syslog" = "yes" ; then
5671     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
5672   else
5673     feature_not_found "syslog(trace backend)" "syslog not available"
5674   fi
5675 fi
5676 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
5677
5678 if test "$rdma" = "yes" ; then
5679   echo "CONFIG_RDMA=y" >> $config_host_mak
5680   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
5681 fi
5682
5683 if test "$pvrdma" = "yes" ; then
5684   echo "CONFIG_PVRDMA=y" >> $config_host_mak
5685 fi
5686
5687 if test "$have_rtnetlink" = "yes" ; then
5688   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
5689 fi
5690
5691 if test "$libxml2" = "yes" ; then
5692   echo "CONFIG_LIBXML2=y" >> $config_host_mak
5693   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
5694   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
5695 fi
5696
5697 if test "$replication" = "yes" ; then
5698   echo "CONFIG_REPLICATION=y" >> $config_host_mak
5699 fi
5700
5701 if test "$have_af_vsock" = "yes" ; then
5702   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
5703 fi
5704
5705 if test "$have_sysmacros" = "yes" ; then
5706   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
5707 fi
5708
5709 if test "$have_utmpx" = "yes" ; then
5710   echo "HAVE_UTMPX=y" >> $config_host_mak
5711 fi
5712 if test "$have_getrandom" = "yes" ; then
5713   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
5714 fi
5715 if test "$ivshmem" = "yes" ; then
5716   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
5717 fi
5718 if test "$debug_mutex" = "yes" ; then
5719   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
5720 fi
5721
5722 # Hold two types of flag:
5723 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
5724 #                                     a thread we have a handle to
5725 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
5726 #                                     platform
5727 if test "$pthread_setname_np_w_tid" = "yes" ; then
5728   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
5729   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
5730 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
5731   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
5732   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
5733 fi
5734
5735 if test "$libpmem" = "yes" ; then
5736   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
5737   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
5738   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
5739 fi
5740
5741 if test "$libdaxctl" = "yes" ; then
5742   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
5743   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
5744 fi
5745
5746 if test "$bochs" = "yes" ; then
5747   echo "CONFIG_BOCHS=y" >> $config_host_mak
5748 fi
5749 if test "$cloop" = "yes" ; then
5750   echo "CONFIG_CLOOP=y" >> $config_host_mak
5751 fi
5752 if test "$dmg" = "yes" ; then
5753   echo "CONFIG_DMG=y" >> $config_host_mak
5754 fi
5755 if test "$qcow1" = "yes" ; then
5756   echo "CONFIG_QCOW1=y" >> $config_host_mak
5757 fi
5758 if test "$vdi" = "yes" ; then
5759   echo "CONFIG_VDI=y" >> $config_host_mak
5760 fi
5761 if test "$vvfat" = "yes" ; then
5762   echo "CONFIG_VVFAT=y" >> $config_host_mak
5763 fi
5764 if test "$qed" = "yes" ; then
5765   echo "CONFIG_QED=y" >> $config_host_mak
5766 fi
5767 if test "$parallels" = "yes" ; then
5768   echo "CONFIG_PARALLELS=y" >> $config_host_mak
5769 fi
5770 if test "$have_mlockall" = "yes" ; then
5771   echo "HAVE_MLOCKALL=y" >> $config_host_mak
5772 fi
5773 if test "$fuzzing" = "yes" ; then
5774   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
5775   # needed CFLAGS have already been provided
5776   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
5777     # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
5778     # compiled code.
5779     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
5780     # To build non-fuzzer binaries with --enable-fuzzing, link everything with
5781     # fsanitize=fuzzer-no-link. Otherwise, the linker will be unable to bind
5782     # the fuzzer-related callbacks added by instrumentation.
5783     QEMU_LDFLAGS="$QEMU_LDFLAGS -fsanitize=fuzzer-no-link"
5784     # For the actual fuzzer binaries, we need to link against the libfuzzer
5785     # library. Provide the flags for doing this in FUZZ_EXE_LDFLAGS. The meson
5786     # rule for the fuzzer adds these to the link_args. They need to be
5787     # configurable, to support OSS-Fuzz
5788     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
5789   else
5790     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
5791   fi
5792 fi
5793
5794 if test "$plugins" = "yes" ; then
5795     echo "CONFIG_PLUGIN=y" >> $config_host_mak
5796     # Copy the export object list to the build dir
5797     if test "$ld_dynamic_list" = "yes" ; then
5798         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
5799         ld_symbols=qemu-plugins-ld.symbols
5800         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
5801     elif test "$ld_exported_symbols_list" = "yes" ; then
5802         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
5803         ld64_symbols=qemu-plugins-ld64.symbols
5804         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
5805         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
5806             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
5807     else
5808         error_exit \
5809             "If \$plugins=yes, either \$ld_dynamic_list or " \
5810             "\$ld_exported_symbols_list should have been set to 'yes'."
5811     fi
5812 fi
5813
5814 if test -n "$gdb_bin"; then
5815     gdb_version=$($gdb_bin --version | head -n 1)
5816     if version_ge ${gdb_version##* } 9.1; then
5817         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
5818     fi
5819 fi
5820
5821 if test "$secret_keyring" = "yes" ; then
5822   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
5823 fi
5824
5825 echo "ROMS=$roms" >> $config_host_mak
5826 echo "MAKE=$make" >> $config_host_mak
5827 echo "PYTHON=$python" >> $config_host_mak
5828 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
5829 echo "MESON=$meson" >> $config_host_mak
5830 echo "NINJA=$ninja" >> $config_host_mak
5831 echo "CC=$cc" >> $config_host_mak
5832 echo "HOST_CC=$host_cc" >> $config_host_mak
5833 if $iasl -h > /dev/null 2>&1; then
5834   echo "CONFIG_IASL=$iasl" >> $config_host_mak
5835 fi
5836 echo "CXX=$cxx" >> $config_host_mak
5837 echo "OBJCC=$objcc" >> $config_host_mak
5838 echo "AR=$ar" >> $config_host_mak
5839 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
5840 echo "AS=$as" >> $config_host_mak
5841 echo "CCAS=$ccas" >> $config_host_mak
5842 echo "CPP=$cpp" >> $config_host_mak
5843 echo "OBJCOPY=$objcopy" >> $config_host_mak
5844 echo "LD=$ld" >> $config_host_mak
5845 echo "RANLIB=$ranlib" >> $config_host_mak
5846 echo "NM=$nm" >> $config_host_mak
5847 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
5848 echo "WINDRES=$windres" >> $config_host_mak
5849 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
5850 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
5851 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
5852 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
5853 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
5854 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
5855 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
5856 echo "EXESUF=$EXESUF" >> $config_host_mak
5857 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
5858 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
5859 if test "$gcov" = "yes" ; then
5860   echo "CONFIG_GCOV=y" >> $config_host_mak
5861 fi
5862
5863 if test "$fuzzing" != "no"; then
5864     echo "CONFIG_FUZZ=y" >> $config_host_mak
5865 fi
5866 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
5867
5868 if test "$rng_none" = "yes"; then
5869   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
5870 fi
5871
5872 # use included Linux headers
5873 if test "$linux" = "yes" ; then
5874   mkdir -p linux-headers
5875   case "$cpu" in
5876   i386|x86_64|x32)
5877     linux_arch=x86
5878     ;;
5879   ppc|ppc64|ppc64le)
5880     linux_arch=powerpc
5881     ;;
5882   s390x)
5883     linux_arch=s390
5884     ;;
5885   aarch64)
5886     linux_arch=arm64
5887     ;;
5888   mips64)
5889     linux_arch=mips
5890     ;;
5891   *)
5892     # For most CPUs the kernel architecture name and QEMU CPU name match.
5893     linux_arch="$cpu"
5894     ;;
5895   esac
5896     # For non-KVM architectures we will not have asm headers
5897     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
5898       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
5899     fi
5900 fi
5901
5902 for target in $target_list; do
5903     target_dir="$target"
5904     target_name=$(echo $target | cut -d '-' -f 1)
5905     mkdir -p $target_dir
5906     case $target in
5907         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
5908         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
5909     esac
5910 done
5911
5912 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
5913 if test "$default_targets" = "yes"; then
5914   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
5915 fi
5916
5917 if test "$numa" = "yes"; then
5918   echo "CONFIG_NUMA=y" >> $config_host_mak
5919   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
5920 fi
5921
5922 if test "$ccache_cpp2" = "yes"; then
5923   echo "export CCACHE_CPP2=y" >> $config_host_mak
5924 fi
5925
5926 if test "$safe_stack" = "yes"; then
5927   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
5928 fi
5929
5930 # If we're using a separate build tree, set it up now.
5931 # DIRS are directories which we simply mkdir in the build tree;
5932 # LINKS are things to symlink back into the source tree
5933 # (these can be both files and directories).
5934 # Caution: do not add files or directories here using wildcards. This
5935 # will result in problems later if a new file matching the wildcard is
5936 # added to the source tree -- nothing will cause configure to be rerun
5937 # so the build tree will be missing the link back to the new file, and
5938 # tests might fail. Prefer to keep the relevant files in their own
5939 # directory and symlink the directory instead.
5940 # UNLINK is used to remove symlinks from older development versions
5941 # that might get into the way when doing "git update" without doing
5942 # a "make distclean" in between.
5943 DIRS="tests tests/tcg tests/qapi-schema tests/qtest/libqos"
5944 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
5945 DIRS="$DIRS docs docs/interop fsdev scsi"
5946 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
5947 DIRS="$DIRS roms/seabios"
5948 DIRS="$DIRS contrib/plugins/"
5949 LINKS="Makefile"
5950 LINKS="$LINKS tests/tcg/Makefile.target"
5951 LINKS="$LINKS pc-bios/optionrom/Makefile"
5952 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
5953 LINKS="$LINKS roms/seabios/Makefile"
5954 LINKS="$LINKS pc-bios/qemu-icon.bmp"
5955 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
5956 LINKS="$LINKS tests/acceptance tests/data"
5957 LINKS="$LINKS tests/qemu-iotests/check"
5958 LINKS="$LINKS python"
5959 LINKS="$LINKS contrib/plugins/Makefile "
5960 UNLINK="pc-bios/keymaps"
5961 for bios_file in \
5962     $source_path/pc-bios/*.bin \
5963     $source_path/pc-bios/*.elf \
5964     $source_path/pc-bios/*.lid \
5965     $source_path/pc-bios/*.rom \
5966     $source_path/pc-bios/*.dtb \
5967     $source_path/pc-bios/*.img \
5968     $source_path/pc-bios/openbios-* \
5969     $source_path/pc-bios/u-boot.* \
5970     $source_path/pc-bios/edk2-*.fd.bz2 \
5971     $source_path/pc-bios/palcode-*
5972 do
5973     LINKS="$LINKS pc-bios/$(basename $bios_file)"
5974 done
5975 mkdir -p $DIRS
5976 for f in $LINKS ; do
5977     if [ -e "$source_path/$f" ]; then
5978         symlink "$source_path/$f" "$f"
5979     fi
5980 done
5981 for f in $UNLINK ; do
5982     if [ -L "$f" ]; then
5983         rm -f "$f"
5984     fi
5985 done
5986
5987 (for i in $cross_cc_vars; do
5988   export $i
5989 done
5990 export target_list source_path use_containers ARCH
5991 $source_path/tests/tcg/configure.sh)
5992
5993 # temporary config to build submodules
5994 for rom in seabios; do
5995     config_mak=roms/$rom/config.mak
5996     echo "# Automatically generated by configure - do not modify" > $config_mak
5997     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
5998     echo "AS=$as" >> $config_mak
5999     echo "CCAS=$ccas" >> $config_mak
6000     echo "CC=$cc" >> $config_mak
6001     echo "BCC=bcc" >> $config_mak
6002     echo "CPP=$cpp" >> $config_mak
6003     echo "OBJCOPY=objcopy" >> $config_mak
6004     echo "IASL=$iasl" >> $config_mak
6005     echo "LD=$ld" >> $config_mak
6006     echo "RANLIB=$ranlib" >> $config_mak
6007 done
6008
6009 if test "$skip_meson" = no; then
6010   cross="config-meson.cross.new"
6011   meson_quote() {
6012     echo "'$(echo $* | sed "s/ /','/g")'"
6013   }
6014
6015   echo "# Automatically generated by configure - do not modify" > $cross
6016   echo "[properties]" >> $cross
6017   test -z "$cxx" && echo "link_language = 'c'" >> $cross
6018   echo "[built-in options]" >> $cross
6019   echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6020   echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6021   echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6022   echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6023   echo "[binaries]" >> $cross
6024   echo "c = [$(meson_quote $cc)]" >> $cross
6025   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6026   test -n "$objcc" && echo "objc = [$(meson_quote $objcc)]" >> $cross
6027   echo "ar = [$(meson_quote $ar)]" >> $cross
6028   echo "nm = [$(meson_quote $nm)]" >> $cross
6029   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6030   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6031   if has $sdl2_config; then
6032     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6033   fi
6034   echo "strip = [$(meson_quote $strip)]" >> $cross
6035   echo "windres = [$(meson_quote $windres)]" >> $cross
6036   if test "$cross_compile" = "yes"; then
6037     cross_arg="--cross-file config-meson.cross"
6038     echo "[host_machine]" >> $cross
6039     if test "$mingw32" = "yes" ; then
6040         echo "system = 'windows'" >> $cross
6041     fi
6042     if test "$linux" = "yes" ; then
6043         echo "system = 'linux'" >> $cross
6044     fi
6045     if test "$darwin" = "yes" ; then
6046         echo "system = 'darwin'" >> $cross
6047     fi
6048     case "$ARCH" in
6049         i386)
6050             echo "cpu_family = 'x86'" >> $cross
6051             ;;
6052         x86_64|x32)
6053             echo "cpu_family = 'x86_64'" >> $cross
6054             ;;
6055         ppc64le)
6056             echo "cpu_family = 'ppc64'" >> $cross
6057             ;;
6058         *)
6059             echo "cpu_family = '$ARCH'" >> $cross
6060             ;;
6061     esac
6062     echo "cpu = '$cpu'" >> $cross
6063     if test "$bigendian" = "yes" ; then
6064         echo "endian = 'big'" >> $cross
6065     else
6066         echo "endian = 'little'" >> $cross
6067     fi
6068   else
6069     cross_arg="--native-file config-meson.cross"
6070   fi
6071   mv $cross config-meson.cross
6072
6073   rm -rf meson-private meson-info meson-logs
6074   unset staticpic
6075   if ! version_ge "$($meson --version)" 0.56.0; then
6076     staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
6077   fi
6078   NINJA=$ninja $meson setup \
6079         --prefix "$prefix" \
6080         --libdir "$libdir" \
6081         --libexecdir "$libexecdir" \
6082         --bindir "$bindir" \
6083         --includedir "$includedir" \
6084         --datadir "$datadir" \
6085         --mandir "$mandir" \
6086         --sysconfdir "$sysconfdir" \
6087         --localedir "$localedir" \
6088         --localstatedir "$local_statedir" \
6089         -Ddocdir="$docdir" \
6090         -Dqemu_firmwarepath="$firmwarepath" \
6091         -Dqemu_suffix="$qemu_suffix" \
6092         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6093         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6094         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6095         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6096         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6097         ${staticpic:+-Db_staticpic=$staticpic} \
6098         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6099         -Db_lto=$lto -Dcfi=$cfi -Dcfi_debug=$cfi_debug \
6100         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6101         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf -Dnvmm=$nvmm \
6102         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6103         -Dcocoa=$cocoa -Dgtk=$gtk -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6104         -Dlibusb=$libusb -Dsmartcard=$smartcard -Dusb_redir=$usb_redir -Dvte=$vte \
6105         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6106         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6107         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt -Dbrlapi=$brlapi \
6108         -Dcurl=$curl -Dglusterfs=$glusterfs -Dbzip2=$bzip2 -Dlibiscsi=$libiscsi \
6109         -Dlibnfs=$libnfs -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6110         -Drbd=$rbd -Dlzo=$lzo -Dsnappy=$snappy -Dlzfse=$lzfse \
6111         -Dgnutls=$gnutls -Dnettle=$nettle -Dgcrypt=$gcrypt -Dauth_pam=$auth_pam \
6112         -Dzstd=$zstd -Dseccomp=$seccomp -Dvirtfs=$virtfs -Dcap_ng=$cap_ng \
6113         -Dattr=$attr -Ddefault_devices=$default_devices -Dvirglrenderer=$virglrenderer \
6114         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6115         -Dvhost_user_blk_server=$vhost_user_blk_server -Dmultiprocess=$multiprocess \
6116         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek -Dguest_agent_msi=$guest_agent_msi -Dbpf=$bpf\
6117         $(if test "$default_features" = no; then echo "-Dauto_features=disabled"; fi) \
6118         -Dtcg_interpreter=$tcg_interpreter \
6119         $cross_arg \
6120         "$PWD" "$source_path"
6121
6122   if test "$?" -ne 0 ; then
6123       error_exit "meson setup failed"
6124   fi
6125 else
6126   if test -f meson-private/cmd_line.txt; then
6127     # Adjust old command line options whose type was changed
6128     # Avoids having to use "setup --wipe" when Meson is upgraded
6129     perl -i -ne '
6130       s/^gettext = true$/gettext = auto/;
6131       s/^gettext = false$/gettext = disabled/;
6132       print;' meson-private/cmd_line.txt
6133   fi
6134 fi
6135
6136 if test -n "${deprecated_features}"; then
6137     echo "Warning, deprecated features enabled."
6138     echo "Please see docs/system/deprecated.rst"
6139     echo "  features: ${deprecated_features}"
6140 fi
6141
6142 # Create list of config switches that should be poisoned in common code...
6143 # but filter out CONFIG_TCG and CONFIG_USER_ONLY which are special.
6144 target_configs_h=$(ls *-config-devices.h *-config-target.h 2>/dev/null)
6145 if test -n "$target_configs_h" ; then
6146     sed -n -e '/CONFIG_TCG/d' -e '/CONFIG_USER_ONLY/d' \
6147         -e '/^#define / { s///; s/ .*//; s/^/#pragma GCC poison /p; }' \
6148         $target_configs_h | sort -u > config-poison.h
6149 else
6150     :> config-poison.h
6151 fi
6152
6153 # Save the configure command line for later reuse.
6154 cat <<EOD >config.status
6155 #!/bin/sh
6156 # Generated by configure.
6157 # Run this file to recreate the current configuration.
6158 # Compiler output produced by configure, useful for debugging
6159 # configure, is in config.log if it exists.
6160 EOD
6161
6162 preserve_env() {
6163     envname=$1
6164
6165     eval envval=\$$envname
6166
6167     if test -n "$envval"
6168     then
6169         echo "$envname='$envval'" >> config.status
6170         echo "export $envname" >> config.status
6171     else
6172         echo "unset $envname" >> config.status
6173     fi
6174 }
6175
6176 # Preserve various env variables that influence what
6177 # features/build target configure will detect
6178 preserve_env AR
6179 preserve_env AS
6180 preserve_env CC
6181 preserve_env CPP
6182 preserve_env CXX
6183 preserve_env INSTALL
6184 preserve_env LD
6185 preserve_env LD_LIBRARY_PATH
6186 preserve_env LIBTOOL
6187 preserve_env MAKE
6188 preserve_env NM
6189 preserve_env OBJCOPY
6190 preserve_env PATH
6191 preserve_env PKG_CONFIG
6192 preserve_env PKG_CONFIG_LIBDIR
6193 preserve_env PKG_CONFIG_PATH
6194 preserve_env PYTHON
6195 preserve_env SDL2_CONFIG
6196 preserve_env SMBD
6197 preserve_env STRIP
6198 preserve_env WINDRES
6199
6200 printf "exec" >>config.status
6201 for i in "$0" "$@"; do
6202   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
6203 done
6204 echo ' "$@"' >>config.status
6205 chmod +x config.status
6206
6207 rm -r "$TMPDIR1"