configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     mkdir build
  35     touch $MARKER
  36
  37     cat > GNUmakefile <<'EOF'
  38 # This file is auto-generated by configure to support in-source tree
  39 # 'make' command invocation
  40
  41 ifeq ($(MAKECMDGOALS),)
  42 recurse: all
  43 endif
  44
  45 .NOTPARALLEL: %
  46 %: force
  47         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  48         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  49         @if test "$(MAKECMDGOALS)" = "distclean" && \
  50             test -e build/auto-created-by-configure ; \
  51         then \
  52             rm -rf build GNUmakefile ; \
  53         fi
  54 force: ;
  55 .PHONY: force
  56 GNUmakefile: ;
  57
  58 EOF
  59     cd build
  60     exec $source_path/configure "$@"
  61 fi
  62
  63 # Temporary directory used for files created while
  64 # configure runs. Since it is in the build directory
  65 # we can safely blow away any previous version of it
  66 # (and we need not jump through hoops to try to delete
  67 # it when configure exits.)
  68 TMPDIR1="config-temp"
  69 rm -rf "${TMPDIR1}"
  70 mkdir -p "${TMPDIR1}"
  71 if [ $? -ne 0 ]; then
  72     echo "ERROR: failed to create temporary directory"
  73     exit 1
  74 fi
  75
  76 TMPB="qemu-conf"
  77 TMPC="${TMPDIR1}/${TMPB}.c"
  78 TMPO="${TMPDIR1}/${TMPB}.o"
  79 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
  80 TMPE="${TMPDIR1}/${TMPB}.exe"
  81 TMPTXT="${TMPDIR1}/${TMPB}.txt"
  82
  83 rm -f config.log
  84
  85 # Print a helpful header at the top of config.log
  86 echo "# QEMU configure log $(date)" >> config.log
  87 printf "# Configured with:" >> config.log
  88 printf " '%s'" "$0" "$@" >> config.log
  89 echo >> config.log
  90 echo "#" >> config.log
  91
  92 quote_sh() {
  93     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  94 }
  95
  96 print_error() {
  97     (echo
  98     echo "ERROR: $1"
  99     while test -n "$2"; do
 100         echo "       $2"
 101         shift
 102     done
 103     echo) >&2
 104 }
 105
 106 error_exit() {
 107     print_error "$@"
 108     exit 1
 109 }
 110
 111 do_compiler() {
 112     # Run the compiler, capturing its output to the log. First argument
 113     # is compiler binary to execute.
 114     compiler="$1"
 115     shift
 116     if test -n "$BASH_VERSION"; then eval '
 117         echo >>config.log "
 118 funcs: ${FUNCNAME[*]}
 119 lines: ${BASH_LINENO[*]}"
 120     '; fi
 121     echo $compiler "$@" >> config.log
 122     $compiler "$@" >> config.log 2>&1 || return $?
 123     # Test passed. If this is an --enable-werror build, rerun
 124     # the test with -Werror and bail out if it fails. This
 125     # makes warning-generating-errors in configure test code
 126     # obvious to developers.
 127     if test "$werror" != "yes"; then
 128         return 0
 129     fi
 130     # Don't bother rerunning the compile if we were already using -Werror
 131     case "$*" in
 132         *-Werror*)
 133            return 0
 134         ;;
 135     esac
 136     echo $compiler -Werror "$@" >> config.log
 137     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 138     error_exit "configure test passed without -Werror but failed with -Werror." \
 139         "This is probably a bug in the configure script. The failing command" \
 140         "will be at the bottom of config.log." \
 141         "You can run configure with --disable-werror to bypass this check."
 142 }
 143
 144 do_cc() {
 145     do_compiler "$cc" "$@"
 146 }
 147
 148 do_cxx() {
 149     do_compiler "$cxx" "$@"
 150 }
 151
 152 # Append $2 to the variable named $1, with space separation
 153 add_to() {
 154     eval $1=\${$1:+\"\$$1 \"}\$2
 155 }
 156
 157 update_cxxflags() {
 158     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 159     # options which some versions of GCC's C++ compiler complain about
 160     # because they only make sense for C programs.
 161     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 162     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu11/-std=gnu++11/)
 163     for arg in $QEMU_CFLAGS; do
 164         case $arg in
 165             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 166             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 167                 ;;
 168             *)
 169                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 170                 ;;
 171         esac
 172     done
 173 }
 174
 175 compile_object() {
 176   local_cflags="$1"
 177   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 178 }
 179
 180 compile_prog() {
 181   local_cflags="$1"
 182   local_ldflags="$2"
 183   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 184       $LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 185 }
 186
 187 # symbolically link $1 to $2.  Portable version of "ln -sf".
 188 symlink() {
 189   rm -rf "$2"
 190   mkdir -p "$(dirname "$2")"
 191   ln -s "$1" "$2"
 192 }
 193
 194 # check whether a command is available to this shell (may be either an
 195 # executable or a builtin)
 196 has() {
 197     type "$1" >/dev/null 2>&1
 198 }
 199
 200 version_ge () {
 201     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 202     local_ver2=$(echo "$2" | tr . ' ')
 203     while true; do
 204         set x $local_ver1
 205         local_first=${2-0}
 206         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 207         shift ${2:+2}
 208         local_ver1=$*
 209         set x $local_ver2
 210         # the second argument finished, the first must be greater or equal
 211         test $# = 1 && return 0
 212         test $local_first -lt $2 && return 1
 213         test $local_first -gt $2 && return 0
 214         shift ${2:+2}
 215         local_ver2=$*
 216     done
 217 }
 218
 219 have_backend () {
 220     echo "$trace_backends" | grep "$1" >/dev/null
 221 }
 222
 223 glob() {
 224     eval test -z '"${1#'"$2"'}"'
 225 }
 226
 227 ld_has() {
 228     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 229 }
 230
 231 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 232 then
 233   error_exit "main directory cannot contain spaces nor colons"
 234 fi
 235
 236 # default parameters
 237 cpu=""
 238 iasl="iasl"
 239 interp_prefix="/usr/gnemul/qemu-%M"
 240 static="no"
 241 cross_compile="no"
 242 cross_prefix=""
 243 audio_drv_list=""
 244 block_drv_rw_whitelist=""
 245 block_drv_ro_whitelist=""
 246 host_cc="cc"
 247 audio_win_int=""
 248 libs_qga=""
 249 debug_info="yes"
 250 lto="false"
 251 stack_protector=""
 252 safe_stack=""
 253 use_containers="yes"
 254 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 255
 256 if test -e "$source_path/.git"
 257 then
 258     git_submodules_action="update"
 259 else
 260     git_submodules_action="ignore"
 261 fi
 262
 263 git_submodules="ui/keycodemapdb"
 264 git="git"
 265
 266 # Don't accept a target_list environment variable.
 267 unset target_list
 268 unset target_list_exclude
 269
 270 # Default value for a variable defining feature "foo".
 271 #  * foo="no"  feature will only be used if --enable-foo arg is given
 272 #  * foo=""    feature will be searched for, and if found, will be used
 273 #              unless --disable-foo is given
 274 #  * foo="yes" this value will only be set by --enable-foo flag.
 275 #              feature will searched for,
 276 #              if not found, configure exits with error
 277 #
 278 # Always add --enable-foo and --disable-foo command line args.
 279 # Distributions want to ensure that several features are compiled in, and it
 280 # is impossible without a --enable-foo that exits if a feature is not found.
 281
 282 default_feature=""
 283 # parse CC options second
 284 for opt do
 285   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 286   case "$opt" in
 287       --without-default-features)
 288           default_feature="no"
 289   ;;
 290   esac
 291 done
 292
 293 brlapi="auto"
 294 curl="auto"
 295 iconv="auto"
 296 curses="auto"
 297 docs="auto"
 298 fdt="auto"
 299 netmap="no"
 300 sdl="auto"
 301 sdl_image="auto"
 302 coreaudio="auto"
 303 virtiofsd="auto"
 304 virtfs="auto"
 305 libudev="auto"
 306 mpath="auto"
 307 vnc="enabled"
 308 sparse="auto"
 309 vde="$default_feature"
 310 vnc_sasl="auto"
 311 vnc_jpeg="auto"
 312 vnc_png="auto"
 313 xkbcommon="auto"
 314 xen="$default_feature"
 315 xen_ctrl_version="$default_feature"
 316 xen_pci_passthrough="auto"
 317 linux_aio="$default_feature"
 318 linux_io_uring="auto"
 319 cap_ng="auto"
 320 attr="auto"
 321 xfs="$default_feature"
 322 tcg="enabled"
 323 membarrier="$default_feature"
 324 vhost_net="$default_feature"
 325 vhost_crypto="$default_feature"
 326 vhost_scsi="$default_feature"
 327 vhost_vsock="$default_feature"
 328 vhost_user="no"
 329 vhost_user_blk_server="auto"
 330 vhost_user_fs="$default_feature"
 331 bpf="auto"
 332 kvm="auto"
 333 hax="auto"
 334 hvf="auto"
 335 whpx="auto"
 336 nvmm="auto"
 337 rdma="$default_feature"
 338 pvrdma="$default_feature"
 339 gprof="no"
 340 debug_tcg="no"
 341 debug="no"
 342 sanitizers="no"
 343 tsan="no"
 344 fortify_source="$default_feature"
 345 strip_opt="yes"
 346 tcg_interpreter="false"
 347 bigendian="no"
 348 mingw32="no"
 349 gcov="no"
 350 EXESUF=""
 351 HOST_DSOSUF=".so"
 352 modules="no"
 353 module_upgrades="no"
 354 prefix="/usr/local"
 355 qemu_suffix="qemu"
 356 slirp="auto"
 357 oss_lib=""
 358 bsd="no"
 359 linux="no"
 360 solaris="no"
 361 profiler="no"
 362 cocoa="auto"
 363 softmmu="yes"
 364 linux_user="no"
 365 bsd_user="no"
 366 blobs="true"
 367 pkgversion=""
 368 pie=""
 369 qom_cast_debug="yes"
 370 trace_backends="log"
 371 trace_file="trace"
 372 spice="$default_feature"
 373 spice_protocol="auto"
 374 rbd="auto"
 375 smartcard="auto"
 376 u2f="auto"
 377 libusb="auto"
 378 usb_redir="auto"
 379 opengl="$default_feature"
 380 cpuid_h="no"
 381 avx2_opt="$default_feature"
 382 capstone="auto"
 383 lzo="auto"
 384 snappy="auto"
 385 bzip2="auto"
 386 lzfse="auto"
 387 zstd="auto"
 388 guest_agent="$default_feature"
 389 guest_agent_with_vss="no"
 390 guest_agent_ntddscsi="no"
 391 guest_agent_msi="auto"
 392 vss_win32_sdk="$default_feature"
 393 win_sdk="no"
 394 want_tools="$default_feature"
 395 libiscsi="auto"
 396 libnfs="auto"
 397 coroutine=""
 398 coroutine_pool="$default_feature"
 399 debug_stack_usage="no"
 400 crypto_afalg="no"
 401 cfi="false"
 402 cfi_debug="false"
 403 seccomp="auto"
 404 glusterfs="auto"
 405 gtk="auto"
 406 tls_priority="NORMAL"
 407 gnutls="auto"
 408 nettle="auto"
 409 gcrypt="auto"
 410 auth_pam="auto"
 411 vte="auto"
 412 virglrenderer="auto"
 413 tpm="$default_feature"
 414 libssh="$default_feature"
 415 live_block_migration=${default_feature:-yes}
 416 numa="$default_feature"
 417 tcmalloc="no"
 418 jemalloc="no"
 419 replication=${default_feature:-yes}
 420 bochs=${default_feature:-yes}
 421 cloop=${default_feature:-yes}
 422 dmg=${default_feature:-yes}
 423 qcow1=${default_feature:-yes}
 424 vdi=${default_feature:-yes}
 425 vvfat=${default_feature:-yes}
 426 qed=${default_feature:-yes}
 427 parallels=${default_feature:-yes}
 428 libxml2="auto"
 429 debug_mutex="no"
 430 libpmem="auto"
 431 default_devices="true"
 432 plugins="no"
 433 fuzzing="no"
 434 rng_none="no"
 435 secret_keyring="$default_feature"
 436 libdaxctl="auto"
 437 meson=""
 438 ninja=""
 439 skip_meson=no
 440 gettext="auto"
 441 fuse="auto"
 442 fuse_lseek="auto"
 443 multiprocess="auto"
 444 slirp_smbd="$default_feature"
 445
 446 malloc_trim="auto"
 447 gio="$default_feature"
 448
 449 # parse CC options second
 450 for opt do
 451   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 452   case "$opt" in
 453   --cross-prefix=*) cross_prefix="$optarg"
 454                     cross_compile="yes"
 455   ;;
 456   --cc=*) CC="$optarg"
 457   ;;
 458   --cxx=*) CXX="$optarg"
 459   ;;
 460   --cpu=*) cpu="$optarg"
 461   ;;
 462   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 463                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 464   ;;
 465   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 466   ;;
 467   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 468                      EXTRA_LDFLAGS="$optarg"
 469   ;;
 470   --enable-debug-info) debug_info="yes"
 471   ;;
 472   --disable-debug-info) debug_info="no"
 473   ;;
 474   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 475   ;;
 476   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 477                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 478                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 479   ;;
 480   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 481                 cc_archs="$cc_archs $cc_arch"
 482                 eval "cross_cc_${cc_arch}=\$optarg"
 483                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 484   ;;
 485   esac
 486 done
 487 # OS specific
 488 # Using uname is really, really broken.  Once we have the right set of checks
 489 # we can eliminate its usage altogether.
 490
 491 # Preferred compiler:
 492 #  ${CC} (if set)
 493 #  ${cross_prefix}gcc (if cross-prefix specified)
 494 #  system compiler
 495 if test -z "${CC}${cross_prefix}"; then
 496   cc="$host_cc"
 497 else
 498   cc="${CC-${cross_prefix}gcc}"
 499 fi
 500
 501 if test -z "${CXX}${cross_prefix}"; then
 502   cxx="c++"
 503 else
 504   cxx="${CXX-${cross_prefix}g++}"
 505 fi
 506
 507 ar="${AR-${cross_prefix}ar}"
 508 as="${AS-${cross_prefix}as}"
 509 ccas="${CCAS-$cc}"
 510 cpp="${CPP-$cc -E}"
 511 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 512 ld="${LD-${cross_prefix}ld}"
 513 ranlib="${RANLIB-${cross_prefix}ranlib}"
 514 nm="${NM-${cross_prefix}nm}"
 515 strip="${STRIP-${cross_prefix}strip}"
 516 windres="${WINDRES-${cross_prefix}windres}"
 517 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 518 query_pkg_config() {
 519     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 520 }
 521 pkg_config=query_pkg_config
 522 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 523
 524 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 525 ARFLAGS="${ARFLAGS-rv}"
 526
 527 # default flags for all hosts
 528 # We use -fwrapv to tell the compiler that we require a C dialect where
 529 # left shift of signed integers is well defined and has the expected
 530 # 2s-complement style results. (Both clang and gcc agree that it
 531 # provides these semantics.)
 532 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 533 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 534 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 535 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 536
 537 # Flags that are needed during configure but later taken care of by Meson
 538 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 539 CONFIGURE_LDFLAGS=
 540
 541
 542 check_define() {
 543 cat > $TMPC <<EOF
 544 #if !defined($1)
 545 #error $1 not defined
 546 #endif
 547 int main(void) { return 0; }
 548 EOF
 549   compile_object
 550 }
 551
 552 check_include() {
 553 cat > $TMPC <<EOF
 554 #include <$1>
 555 int main(void) { return 0; }
 556 EOF
 557   compile_object
 558 }
 559
 560 write_c_skeleton() {
 561     cat > $TMPC <<EOF
 562 int main(void) { return 0; }
 563 EOF
 564 }
 565
 566 write_c_fuzzer_skeleton() {
 567     cat > $TMPC <<EOF
 568 #include <stdint.h>
 569 #include <sys/types.h>
 570 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 571 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 572 EOF
 573 }
 574
 575 if check_define __linux__ ; then
 576   targetos="Linux"
 577 elif check_define _WIN32 ; then
 578   targetos='MINGW32'
 579 elif check_define __OpenBSD__ ; then
 580   targetos='OpenBSD'
 581 elif check_define __sun__ ; then
 582   targetos='SunOS'
 583 elif check_define __HAIKU__ ; then
 584   targetos='Haiku'
 585 elif check_define __FreeBSD__ ; then
 586   targetos='FreeBSD'
 587 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 588   targetos='GNU/kFreeBSD'
 589 elif check_define __DragonFly__ ; then
 590   targetos='DragonFly'
 591 elif check_define __NetBSD__; then
 592   targetos='NetBSD'
 593 elif check_define __APPLE__; then
 594   targetos='Darwin'
 595 else
 596   # This is a fatal error, but don't report it yet, because we
 597   # might be going to just print the --help text, or it might
 598   # be the result of a missing compiler.
 599   targetos='bogus'
 600 fi
 601
 602 # Some host OSes need non-standard checks for which CPU to use.
 603 # Note that these checks are broken for cross-compilation: if you're
 604 # cross-compiling to one of these OSes then you'll need to specify
 605 # the correct CPU with the --cpu option.
 606 case $targetos in
 607 Darwin)
 608   HOST_DSOSUF=".dylib"
 609   ;;
 610 SunOS)
 611   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 612   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 613     cpu="x86_64"
 614   fi
 615 esac
 616
 617 if test ! -z "$cpu" ; then
 618   # command line argument
 619   :
 620 elif check_define __i386__ ; then
 621   cpu="i386"
 622 elif check_define __x86_64__ ; then
 623   if check_define __ILP32__ ; then
 624     cpu="x32"
 625   else
 626     cpu="x86_64"
 627   fi
 628 elif check_define __sparc__ ; then
 629   if check_define __arch64__ ; then
 630     cpu="sparc64"
 631   else
 632     cpu="sparc"
 633   fi
 634 elif check_define _ARCH_PPC ; then
 635   if check_define _ARCH_PPC64 ; then
 636     if check_define _LITTLE_ENDIAN ; then
 637       cpu="ppc64le"
 638     else
 639       cpu="ppc64"
 640     fi
 641   else
 642     cpu="ppc"
 643   fi
 644 elif check_define __mips__ ; then
 645   cpu="mips"
 646 elif check_define __s390__ ; then
 647   if check_define __s390x__ ; then
 648     cpu="s390x"
 649   else
 650     cpu="s390"
 651   fi
 652 elif check_define __riscv ; then
 653   if check_define _LP64 ; then
 654     cpu="riscv64"
 655   else
 656     cpu="riscv32"
 657   fi
 658 elif check_define __arm__ ; then
 659   cpu="arm"
 660 elif check_define __aarch64__ ; then
 661   cpu="aarch64"
 662 else
 663   cpu=$(uname -m)
 664 fi
 665
 666 ARCH=
 667 # Normalise host CPU name and set ARCH.
 668 # Note that this case should only have supported host CPUs, not guests.
 669 case "$cpu" in
 670   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 671   ;;
 672   ppc64le)
 673     ARCH="ppc64"
 674   ;;
 675   i386|i486|i586|i686|i86pc|BePC)
 676     cpu="i386"
 677   ;;
 678   x86_64|amd64)
 679     cpu="x86_64"
 680   ;;
 681   armv*b|armv*l|arm)
 682     cpu="arm"
 683   ;;
 684   aarch64)
 685     cpu="aarch64"
 686   ;;
 687   mips*)
 688     cpu="mips"
 689   ;;
 690   sparc|sun4[cdmuv])
 691     cpu="sparc"
 692   ;;
 693   *)
 694     # This will result in either an error or falling back to TCI later
 695     ARCH=unknown
 696   ;;
 697 esac
 698 if test -z "$ARCH"; then
 699   ARCH="$cpu"
 700 fi
 701
 702 # OS specific
 703
 704 case $targetos in
 705 MINGW32*)
 706   mingw32="yes"
 707   audio_possible_drivers="dsound sdl"
 708   if check_include dsound.h; then
 709     audio_drv_list="dsound"
 710   else
 711     audio_drv_list=""
 712   fi
 713   supported_os="yes"
 714   pie="no"
 715 ;;
 716 GNU/kFreeBSD)
 717   bsd="yes"
 718   audio_drv_list="oss try-sdl"
 719   audio_possible_drivers="oss sdl pa"
 720 ;;
 721 FreeBSD)
 722   bsd="yes"
 723   make="${MAKE-gmake}"
 724   audio_drv_list="oss try-sdl"
 725   audio_possible_drivers="oss sdl pa"
 726   # needed for kinfo_getvmmap(3) in libutil.h
 727   netmap=""  # enable netmap autodetect
 728 ;;
 729 DragonFly)
 730   bsd="yes"
 731   make="${MAKE-gmake}"
 732   audio_drv_list="oss try-sdl"
 733   audio_possible_drivers="oss sdl pa"
 734 ;;
 735 NetBSD)
 736   bsd="yes"
 737   make="${MAKE-gmake}"
 738   audio_drv_list="oss try-sdl"
 739   audio_possible_drivers="oss sdl"
 740   oss_lib="-lossaudio"
 741 ;;
 742 OpenBSD)
 743   bsd="yes"
 744   make="${MAKE-gmake}"
 745   audio_drv_list="try-sdl"
 746   audio_possible_drivers="sdl"
 747 ;;
 748 Darwin)
 749   bsd="yes"
 750   darwin="yes"
 751   audio_drv_list="try-coreaudio try-sdl"
 752   audio_possible_drivers="coreaudio sdl"
 753   # Disable attempts to use ObjectiveC features in os/object.h since they
 754   # won't work when we're compiling with gcc as a C compiler.
 755   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 756 ;;
 757 SunOS)
 758   solaris="yes"
 759   make="${MAKE-gmake}"
 760   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 761   if test -f /usr/include/sys/soundcard.h ; then
 762     audio_drv_list="oss try-sdl"
 763   fi
 764   audio_possible_drivers="oss sdl"
 765 # needed for CMSG_ macros in sys/socket.h
 766   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 767 # needed for TIOCWIN* defines in termios.h
 768   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 769 ;;
 770 Haiku)
 771   haiku="yes"
 772   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 773 ;;
 774 Linux)
 775   audio_drv_list="try-pa oss"
 776   audio_possible_drivers="oss alsa sdl pa"
 777   linux="yes"
 778   linux_user="yes"
 779   vhost_user=${default_feature:-yes}
 780 ;;
 781 esac
 782
 783 if [ "$bsd" = "yes" ] ; then
 784   if [ "$darwin" != "yes" ] ; then
 785     bsd_user="yes"
 786   fi
 787 fi
 788
 789 : ${make=${MAKE-make}}
 790
 791 # We prefer python 3.x. A bare 'python' is traditionally
 792 # python 2.x, but some distros have it as python 3.x, so
 793 # we check that too
 794 python=
 795 explicit_python=no
 796 for binary in "${PYTHON-python3}" python
 797 do
 798     if has "$binary"
 799     then
 800         python=$(command -v "$binary")
 801         break
 802     fi
 803 done
 804
 805
 806 # Check for ancillary tools used in testing
 807 genisoimage=
 808 for binary in genisoimage mkisofs
 809 do
 810     if has $binary
 811     then
 812         genisoimage=$(command -v "$binary")
 813         break
 814     fi
 815 done
 816
 817 # Default objcc to clang if available, otherwise use CC
 818 if has clang; then
 819   objcc=clang
 820 else
 821   objcc="$cc"
 822 fi
 823
 824 if test "$mingw32" = "yes" ; then
 825   EXESUF=".exe"
 826   HOST_DSOSUF=".dll"
 827   # MinGW needs -mthreads for TLS and macro _MT.
 828   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 829   write_c_skeleton;
 830   prefix="/qemu"
 831   qemu_suffix=""
 832   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 833 fi
 834
 835 werror=""
 836
 837 for opt do
 838   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 839   case "$opt" in
 840   --help|-h) show_help=yes
 841   ;;
 842   --version|-V) exec cat $source_path/VERSION
 843   ;;
 844   --prefix=*) prefix="$optarg"
 845   ;;
 846   --interp-prefix=*) interp_prefix="$optarg"
 847   ;;
 848   --cross-prefix=*)
 849   ;;
 850   --cc=*)
 851   ;;
 852   --host-cc=*) host_cc="$optarg"
 853   ;;
 854   --cxx=*)
 855   ;;
 856   --iasl=*) iasl="$optarg"
 857   ;;
 858   --objcc=*) objcc="$optarg"
 859   ;;
 860   --make=*) make="$optarg"
 861   ;;
 862   --install=*)
 863   ;;
 864   --python=*) python="$optarg" ; explicit_python=yes
 865   ;;
 866   --sphinx-build=*) sphinx_build="$optarg"
 867   ;;
 868   --skip-meson) skip_meson=yes
 869   ;;
 870   --meson=*) meson="$optarg"
 871   ;;
 872   --ninja=*) ninja="$optarg"
 873   ;;
 874   --smbd=*) smbd="$optarg"
 875   ;;
 876   --extra-cflags=*)
 877   ;;
 878   --extra-cxxflags=*)
 879   ;;
 880   --extra-ldflags=*)
 881   ;;
 882   --enable-debug-info)
 883   ;;
 884   --disable-debug-info)
 885   ;;
 886   --cross-cc-*)
 887   ;;
 888   --enable-modules)
 889       modules="yes"
 890   ;;
 891   --disable-modules)
 892       modules="no"
 893   ;;
 894   --disable-module-upgrades) module_upgrades="no"
 895   ;;
 896   --enable-module-upgrades) module_upgrades="yes"
 897   ;;
 898   --cpu=*)
 899   ;;
 900   --target-list=*) target_list="$optarg"
 901                    if test "$target_list_exclude"; then
 902                        error_exit "Can't mix --target-list with --target-list-exclude"
 903                    fi
 904   ;;
 905   --target-list-exclude=*) target_list_exclude="$optarg"
 906                    if test "$target_list"; then
 907                        error_exit "Can't mix --target-list-exclude with --target-list"
 908                    fi
 909   ;;
 910   --enable-trace-backends=*) trace_backends="$optarg"
 911   ;;
 912   # XXX: backwards compatibility
 913   --enable-trace-backend=*) trace_backends="$optarg"
 914   ;;
 915   --with-trace-file=*) trace_file="$optarg"
 916   ;;
 917   --with-default-devices) default_devices="true"
 918   ;;
 919   --without-default-devices) default_devices="false"
 920   ;;
 921   --without-default-features) # processed above
 922   ;;
 923   --enable-gprof) gprof="yes"
 924   ;;
 925   --enable-gcov) gcov="yes"
 926   ;;
 927   --static)
 928     static="yes"
 929     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 930   ;;
 931   --mandir=*) mandir="$optarg"
 932   ;;
 933   --bindir=*) bindir="$optarg"
 934   ;;
 935   --libdir=*) libdir="$optarg"
 936   ;;
 937   --libexecdir=*) libexecdir="$optarg"
 938   ;;
 939   --includedir=*) includedir="$optarg"
 940   ;;
 941   --datadir=*) datadir="$optarg"
 942   ;;
 943   --with-suffix=*) qemu_suffix="$optarg"
 944   ;;
 945   --docdir=*) docdir="$optarg"
 946   ;;
 947   --localedir=*) localedir="$optarg"
 948   ;;
 949   --sysconfdir=*) sysconfdir="$optarg"
 950   ;;
 951   --localstatedir=*) local_statedir="$optarg"
 952   ;;
 953   --firmwarepath=*) firmwarepath="$optarg"
 954   ;;
 955   --host=*|--build=*|\
 956   --disable-dependency-tracking|\
 957   --sbindir=*|--sharedstatedir=*|\
 958   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 959   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 960     # These switches are silently ignored, for compatibility with
 961     # autoconf-generated configure scripts. This allows QEMU's
 962     # configure to be used by RPM and similar macros that set
 963     # lots of directory switches by default.
 964   ;;
 965   --disable-sdl) sdl="disabled"
 966   ;;
 967   --enable-sdl) sdl="enabled"
 968   ;;
 969   --disable-sdl-image) sdl_image="disabled"
 970   ;;
 971   --enable-sdl-image) sdl_image="enabled"
 972   ;;
 973   --disable-qom-cast-debug) qom_cast_debug="no"
 974   ;;
 975   --enable-qom-cast-debug) qom_cast_debug="yes"
 976   ;;
 977   --disable-virtfs) virtfs="disabled"
 978   ;;
 979   --enable-virtfs) virtfs="enabled"
 980   ;;
 981   --disable-libudev) libudev="disabled"
 982   ;;
 983   --enable-libudev) libudev="enabled"
 984   ;;
 985   --disable-virtiofsd) virtiofsd="disabled"
 986   ;;
 987   --enable-virtiofsd) virtiofsd="enabled"
 988   ;;
 989   --disable-mpath) mpath="disabled"
 990   ;;
 991   --enable-mpath) mpath="enabled"
 992   ;;
 993   --disable-vnc) vnc="disabled"
 994   ;;
 995   --enable-vnc) vnc="enabled"
 996   ;;
 997   --disable-gettext) gettext="disabled"
 998   ;;
 999   --enable-gettext) gettext="enabled"
1000   ;;
1001   --oss-lib=*) oss_lib="$optarg"
1002   ;;
1003   --audio-drv-list=*) audio_drv_list="$optarg"
1004   ;;
1005   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1006   ;;
1007   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1008   ;;
1009   --enable-debug-tcg) debug_tcg="yes"
1010   ;;
1011   --disable-debug-tcg) debug_tcg="no"
1012   ;;
1013   --enable-debug)
1014       # Enable debugging options that aren't excessively noisy
1015       debug_tcg="yes"
1016       debug_mutex="yes"
1017       debug="yes"
1018       strip_opt="no"
1019       fortify_source="no"
1020   ;;
1021   --enable-sanitizers) sanitizers="yes"
1022   ;;
1023   --disable-sanitizers) sanitizers="no"
1024   ;;
1025   --enable-tsan) tsan="yes"
1026   ;;
1027   --disable-tsan) tsan="no"
1028   ;;
1029   --enable-sparse) sparse="enabled"
1030   ;;
1031   --disable-sparse) sparse="disabled"
1032   ;;
1033   --disable-strip) strip_opt="no"
1034   ;;
1035   --disable-vnc-sasl) vnc_sasl="disabled"
1036   ;;
1037   --enable-vnc-sasl) vnc_sasl="enabled"
1038   ;;
1039   --disable-vnc-jpeg) vnc_jpeg="disabled"
1040   ;;
1041   --enable-vnc-jpeg) vnc_jpeg="enabled"
1042   ;;
1043   --disable-vnc-png) vnc_png="disabled"
1044   ;;
1045   --enable-vnc-png) vnc_png="enabled"
1046   ;;
1047   --disable-slirp) slirp="disabled"
1048   ;;
1049   --enable-slirp) slirp="enabled"
1050   ;;
1051   --enable-slirp=git) slirp="internal"
1052   ;;
1053   --enable-slirp=system) slirp="system"
1054   ;;
1055   --disable-vde) vde="no"
1056   ;;
1057   --enable-vde) vde="yes"
1058   ;;
1059   --disable-netmap) netmap="no"
1060   ;;
1061   --enable-netmap) netmap="yes"
1062   ;;
1063   --disable-xen) xen="disabled"
1064   ;;
1065   --enable-xen) xen="enabled"
1066   ;;
1067   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1068   ;;
1069   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1070   ;;
1071   --disable-brlapi) brlapi="disabled"
1072   ;;
1073   --enable-brlapi) brlapi="enabled"
1074   ;;
1075   --disable-kvm) kvm="disabled"
1076   ;;
1077   --enable-kvm) kvm="enabled"
1078   ;;
1079   --disable-hax) hax="disabled"
1080   ;;
1081   --enable-hax) hax="enabled"
1082   ;;
1083   --disable-hvf) hvf="disabled"
1084   ;;
1085   --enable-hvf) hvf="enabled"
1086   ;;
1087   --disable-nvmm) nvmm="disabled"
1088   ;;
1089   --enable-nvmm) nvmm="enabled"
1090   ;;
1091   --disable-whpx) whpx="disabled"
1092   ;;
1093   --enable-whpx) whpx="enabled"
1094   ;;
1095   --disable-tcg-interpreter) tcg_interpreter="false"
1096   ;;
1097   --enable-tcg-interpreter) tcg_interpreter="true"
1098   ;;
1099   --disable-cap-ng)  cap_ng="disabled"
1100   ;;
1101   --enable-cap-ng) cap_ng="enabled"
1102   ;;
1103   --disable-tcg) tcg="disabled"
1104   ;;
1105   --enable-tcg) tcg="enabled"
1106   ;;
1107   --disable-malloc-trim) malloc_trim="disabled"
1108   ;;
1109   --enable-malloc-trim) malloc_trim="enabled"
1110   ;;
1111   --disable-spice) spice="no"
1112   ;;
1113   --enable-spice)
1114       spice_protocol="yes"
1115       spice="yes"
1116   ;;
1117   --disable-spice-protocol)
1118       spice_protocol="no"
1119       spice="no"
1120   ;;
1121   --enable-spice-protocol) spice_protocol="yes"
1122   ;;
1123   --disable-libiscsi) libiscsi="disabled"
1124   ;;
1125   --enable-libiscsi) libiscsi="enabled"
1126   ;;
1127   --disable-libnfs) libnfs="disabled"
1128   ;;
1129   --enable-libnfs) libnfs="enabled"
1130   ;;
1131   --enable-profiler) profiler="yes"
1132   ;;
1133   --disable-cocoa) cocoa="disabled"
1134   ;;
1135   --enable-cocoa) cocoa="enabled"
1136   ;;
1137   --disable-system) softmmu="no"
1138   ;;
1139   --enable-system) softmmu="yes"
1140   ;;
1141   --disable-user)
1142       linux_user="no" ;
1143       bsd_user="no" ;
1144   ;;
1145   --enable-user) ;;
1146   --disable-linux-user) linux_user="no"
1147   ;;
1148   --enable-linux-user) linux_user="yes"
1149   ;;
1150   --disable-bsd-user) bsd_user="no"
1151   ;;
1152   --enable-bsd-user) bsd_user="yes"
1153   ;;
1154   --enable-pie) pie="yes"
1155   ;;
1156   --disable-pie) pie="no"
1157   ;;
1158   --enable-werror) werror="yes"
1159   ;;
1160   --disable-werror) werror="no"
1161   ;;
1162   --enable-lto) lto="true"
1163   ;;
1164   --disable-lto) lto="false"
1165   ;;
1166   --enable-stack-protector) stack_protector="yes"
1167   ;;
1168   --disable-stack-protector) stack_protector="no"
1169   ;;
1170   --enable-safe-stack) safe_stack="yes"
1171   ;;
1172   --disable-safe-stack) safe_stack="no"
1173   ;;
1174   --enable-cfi)
1175       cfi="true";
1176       lto="true";
1177   ;;
1178   --disable-cfi) cfi="false"
1179   ;;
1180   --enable-cfi-debug) cfi_debug="true"
1181   ;;
1182   --disable-cfi-debug) cfi_debug="false"
1183   ;;
1184   --disable-curses) curses="disabled"
1185   ;;
1186   --enable-curses) curses="enabled"
1187   ;;
1188   --disable-iconv) iconv="disabled"
1189   ;;
1190   --enable-iconv) iconv="enabled"
1191   ;;
1192   --disable-curl) curl="disabled"
1193   ;;
1194   --enable-curl) curl="enabled"
1195   ;;
1196   --disable-fdt) fdt="disabled"
1197   ;;
1198   --enable-fdt) fdt="enabled"
1199   ;;
1200   --enable-fdt=git) fdt="internal"
1201   ;;
1202   --enable-fdt=system) fdt="system"
1203   ;;
1204   --disable-linux-aio) linux_aio="no"
1205   ;;
1206   --enable-linux-aio) linux_aio="yes"
1207   ;;
1208   --disable-linux-io-uring) linux_io_uring="disabled"
1209   ;;
1210   --enable-linux-io-uring) linux_io_uring="enabled"
1211   ;;
1212   --disable-attr) attr="disabled"
1213   ;;
1214   --enable-attr) attr="enabled"
1215   ;;
1216   --disable-membarrier) membarrier="no"
1217   ;;
1218   --enable-membarrier) membarrier="yes"
1219   ;;
1220   --disable-bpf) bpf="disabled"
1221   ;;
1222   --enable-bpf) bpf="enabled"
1223   ;;
1224   --disable-blobs) blobs="false"
1225   ;;
1226   --with-pkgversion=*) pkgversion="$optarg"
1227   ;;
1228   --with-coroutine=*) coroutine="$optarg"
1229   ;;
1230   --disable-coroutine-pool) coroutine_pool="no"
1231   ;;
1232   --enable-coroutine-pool) coroutine_pool="yes"
1233   ;;
1234   --enable-debug-stack-usage) debug_stack_usage="yes"
1235   ;;
1236   --enable-crypto-afalg) crypto_afalg="yes"
1237   ;;
1238   --disable-crypto-afalg) crypto_afalg="no"
1239   ;;
1240   --disable-docs) docs="disabled"
1241   ;;
1242   --enable-docs) docs="enabled"
1243   ;;
1244   --disable-vhost-net) vhost_net="no"
1245   ;;
1246   --enable-vhost-net) vhost_net="yes"
1247   ;;
1248   --disable-vhost-crypto) vhost_crypto="no"
1249   ;;
1250   --enable-vhost-crypto) vhost_crypto="yes"
1251   ;;
1252   --disable-vhost-scsi) vhost_scsi="no"
1253   ;;
1254   --enable-vhost-scsi) vhost_scsi="yes"
1255   ;;
1256   --disable-vhost-vsock) vhost_vsock="no"
1257   ;;
1258   --enable-vhost-vsock) vhost_vsock="yes"
1259   ;;
1260   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1261   ;;
1262   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1263   ;;
1264   --disable-vhost-user-fs) vhost_user_fs="no"
1265   ;;
1266   --enable-vhost-user-fs) vhost_user_fs="yes"
1267   ;;
1268   --disable-opengl) opengl="no"
1269   ;;
1270   --enable-opengl) opengl="yes"
1271   ;;
1272   --disable-rbd) rbd="disabled"
1273   ;;
1274   --enable-rbd) rbd="enabled"
1275   ;;
1276   --disable-xfsctl) xfs="no"
1277   ;;
1278   --enable-xfsctl) xfs="yes"
1279   ;;
1280   --disable-smartcard) smartcard="disabled"
1281   ;;
1282   --enable-smartcard) smartcard="enabled"
1283   ;;
1284   --disable-u2f) u2f="disabled"
1285   ;;
1286   --enable-u2f) u2f="enabled"
1287   ;;
1288   --disable-libusb) libusb="disabled"
1289   ;;
1290   --enable-libusb) libusb="enabled"
1291   ;;
1292   --disable-usb-redir) usb_redir="disabled"
1293   ;;
1294   --enable-usb-redir) usb_redir="enabled"
1295   ;;
1296   --disable-zlib-test)
1297   ;;
1298   --disable-lzo) lzo="disabled"
1299   ;;
1300   --enable-lzo) lzo="enabled"
1301   ;;
1302   --disable-snappy) snappy="disabled"
1303   ;;
1304   --enable-snappy) snappy="enabled"
1305   ;;
1306   --disable-bzip2) bzip2="disabled"
1307   ;;
1308   --enable-bzip2) bzip2="enabled"
1309   ;;
1310   --enable-lzfse) lzfse="enabled"
1311   ;;
1312   --disable-lzfse) lzfse="disabled"
1313   ;;
1314   --disable-zstd) zstd="disabled"
1315   ;;
1316   --enable-zstd) zstd="enabled"
1317   ;;
1318   --enable-guest-agent) guest_agent="yes"
1319   ;;
1320   --disable-guest-agent) guest_agent="no"
1321   ;;
1322   --enable-guest-agent-msi) guest_agent_msi="enabled"
1323   ;;
1324   --disable-guest-agent-msi) guest_agent_msi="disabled"
1325   ;;
1326   --with-vss-sdk) vss_win32_sdk=""
1327   ;;
1328   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1329   ;;
1330   --without-vss-sdk) vss_win32_sdk="no"
1331   ;;
1332   --with-win-sdk) win_sdk=""
1333   ;;
1334   --with-win-sdk=*) win_sdk="$optarg"
1335   ;;
1336   --without-win-sdk) win_sdk="no"
1337   ;;
1338   --enable-tools) want_tools="yes"
1339   ;;
1340   --disable-tools) want_tools="no"
1341   ;;
1342   --enable-seccomp) seccomp="enabled"
1343   ;;
1344   --disable-seccomp) seccomp="disabled"
1345   ;;
1346   --disable-glusterfs) glusterfs="disabled"
1347   ;;
1348   --disable-avx2) avx2_opt="no"
1349   ;;
1350   --enable-avx2) avx2_opt="yes"
1351   ;;
1352   --disable-avx512f) avx512f_opt="no"
1353   ;;
1354   --enable-avx512f) avx512f_opt="yes"
1355   ;;
1356
1357   --enable-glusterfs) glusterfs="enabled"
1358   ;;
1359   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1360       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1361   ;;
1362   --enable-vhdx|--disable-vhdx)
1363       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1364   ;;
1365   --enable-uuid|--disable-uuid)
1366       echo "$0: $opt is obsolete, UUID support is always built" >&2
1367   ;;
1368   --disable-gtk) gtk="disabled"
1369   ;;
1370   --enable-gtk) gtk="enabled"
1371   ;;
1372   --tls-priority=*) tls_priority="$optarg"
1373   ;;
1374   --disable-gnutls) gnutls="disabled"
1375   ;;
1376   --enable-gnutls) gnutls="enabled"
1377   ;;
1378   --disable-nettle) nettle="disabled"
1379   ;;
1380   --enable-nettle) nettle="enabled"
1381   ;;
1382   --disable-gcrypt) gcrypt="disabled"
1383   ;;
1384   --enable-gcrypt) gcrypt="enabled"
1385   ;;
1386   --disable-auth-pam) auth_pam="disabled"
1387   ;;
1388   --enable-auth-pam) auth_pam="enabled"
1389   ;;
1390   --enable-rdma) rdma="yes"
1391   ;;
1392   --disable-rdma) rdma="no"
1393   ;;
1394   --enable-pvrdma) pvrdma="yes"
1395   ;;
1396   --disable-pvrdma) pvrdma="no"
1397   ;;
1398   --disable-vte) vte="disabled"
1399   ;;
1400   --enable-vte) vte="enabled"
1401   ;;
1402   --disable-virglrenderer) virglrenderer="disabled"
1403   ;;
1404   --enable-virglrenderer) virglrenderer="enabled"
1405   ;;
1406   --disable-tpm) tpm="no"
1407   ;;
1408   --enable-tpm) tpm="yes"
1409   ;;
1410   --disable-libssh) libssh="no"
1411   ;;
1412   --enable-libssh) libssh="yes"
1413   ;;
1414   --disable-live-block-migration) live_block_migration="no"
1415   ;;
1416   --enable-live-block-migration) live_block_migration="yes"
1417   ;;
1418   --disable-numa) numa="no"
1419   ;;
1420   --enable-numa) numa="yes"
1421   ;;
1422   --disable-libxml2) libxml2="disabled"
1423   ;;
1424   --enable-libxml2) libxml2="enabled"
1425   ;;
1426   --disable-tcmalloc) tcmalloc="no"
1427   ;;
1428   --enable-tcmalloc) tcmalloc="yes"
1429   ;;
1430   --disable-jemalloc) jemalloc="no"
1431   ;;
1432   --enable-jemalloc) jemalloc="yes"
1433   ;;
1434   --disable-replication) replication="no"
1435   ;;
1436   --enable-replication) replication="yes"
1437   ;;
1438   --disable-bochs) bochs="no"
1439   ;;
1440   --enable-bochs) bochs="yes"
1441   ;;
1442   --disable-cloop) cloop="no"
1443   ;;
1444   --enable-cloop) cloop="yes"
1445   ;;
1446   --disable-dmg) dmg="no"
1447   ;;
1448   --enable-dmg) dmg="yes"
1449   ;;
1450   --disable-qcow1) qcow1="no"
1451   ;;
1452   --enable-qcow1) qcow1="yes"
1453   ;;
1454   --disable-vdi) vdi="no"
1455   ;;
1456   --enable-vdi) vdi="yes"
1457   ;;
1458   --disable-vvfat) vvfat="no"
1459   ;;
1460   --enable-vvfat) vvfat="yes"
1461   ;;
1462   --disable-qed) qed="no"
1463   ;;
1464   --enable-qed) qed="yes"
1465   ;;
1466   --disable-parallels) parallels="no"
1467   ;;
1468   --enable-parallels) parallels="yes"
1469   ;;
1470   --disable-vhost-user) vhost_user="no"
1471   ;;
1472   --enable-vhost-user) vhost_user="yes"
1473   ;;
1474   --disable-vhost-vdpa) vhost_vdpa="no"
1475   ;;
1476   --enable-vhost-vdpa) vhost_vdpa="yes"
1477   ;;
1478   --disable-vhost-kernel) vhost_kernel="no"
1479   ;;
1480   --enable-vhost-kernel) vhost_kernel="yes"
1481   ;;
1482   --disable-capstone) capstone="disabled"
1483   ;;
1484   --enable-capstone) capstone="enabled"
1485   ;;
1486   --enable-capstone=git) capstone="internal"
1487   ;;
1488   --enable-capstone=system) capstone="system"
1489   ;;
1490   --with-git=*) git="$optarg"
1491   ;;
1492   --enable-git-update)
1493       git_submodules_action="update"
1494       echo "--enable-git-update deprecated, use --with-git-submodules=update"
1495   ;;
1496   --disable-git-update)
1497       git_submodules_action="validate"
1498       echo "--disable-git-update deprecated, use --with-git-submodules=validate"
1499   ;;
1500   --with-git-submodules=*)
1501       git_submodules_action="$optarg"
1502   ;;
1503   --enable-debug-mutex) debug_mutex=yes
1504   ;;
1505   --disable-debug-mutex) debug_mutex=no
1506   ;;
1507   --enable-libpmem) libpmem=disabled
1508   ;;
1509   --disable-libpmem) libpmem=enabled
1510   ;;
1511   --enable-xkbcommon) xkbcommon="enabled"
1512   ;;
1513   --disable-xkbcommon) xkbcommon="disabled"
1514   ;;
1515   --enable-plugins) plugins="yes"
1516   ;;
1517   --disable-plugins) plugins="no"
1518   ;;
1519   --enable-containers) use_containers="yes"
1520   ;;
1521   --disable-containers) use_containers="no"
1522   ;;
1523   --enable-fuzzing) fuzzing=yes
1524   ;;
1525   --disable-fuzzing) fuzzing=no
1526   ;;
1527   --gdb=*) gdb_bin="$optarg"
1528   ;;
1529   --enable-rng-none) rng_none=yes
1530   ;;
1531   --disable-rng-none) rng_none=no
1532   ;;
1533   --enable-keyring) secret_keyring="yes"
1534   ;;
1535   --disable-keyring) secret_keyring="no"
1536   ;;
1537   --enable-libdaxctl) libdaxctl=disabled
1538   ;;
1539   --disable-libdaxctl) libdaxctl=enabled
1540   ;;
1541   --enable-fuse) fuse="enabled"
1542   ;;
1543   --disable-fuse) fuse="disabled"
1544   ;;
1545   --enable-fuse-lseek) fuse_lseek="enabled"
1546   ;;
1547   --disable-fuse-lseek) fuse_lseek="disabled"
1548   ;;
1549   --enable-multiprocess) multiprocess="enabled"
1550   ;;
1551   --disable-multiprocess) multiprocess="disabled"
1552   ;;
1553   --enable-gio) gio=yes
1554   ;;
1555   --disable-gio) gio=no
1556   ;;
1557   --enable-slirp-smbd) slirp_smbd=yes
1558   ;;
1559   --disable-slirp-smbd) slirp_smbd=no
1560   ;;
1561   *)
1562       echo "ERROR: unknown option $opt"
1563       echo "Try '$0 --help' for more information"
1564       exit 1
1565   ;;
1566   esac
1567 done
1568
1569 case $git_submodules_action in
1570     update|validate)
1571         if test ! -e "$source_path/.git"; then
1572             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1573             exit 1
1574         fi
1575     ;;
1576     ignore)
1577         if ! test -f "$source_path/ui/keycodemapdb/README"
1578         then
1579             echo
1580             echo "ERROR: missing GIT submodules"
1581             echo
1582             if test -e "$source_path/.git"; then
1583                 echo "--with-git-submodules=ignore specified but submodules were not"
1584                 echo "checked out.  Please initialize and update submodules."
1585             else
1586                 echo "This is not a GIT checkout but module content appears to"
1587                 echo "be missing. Do not use 'git archive' or GitHub download links"
1588                 echo "to acquire QEMU source archives. Non-GIT builds are only"
1589                 echo "supported with source archives linked from:"
1590                 echo
1591                 echo "  https://www.qemu.org/download/#source"
1592                 echo
1593                 echo "Developers working with GIT can use scripts/archive-source.sh"
1594                 echo "if they need to create valid source archives."
1595             fi
1596             echo
1597             exit 1
1598         fi
1599     ;;
1600     *)
1601         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1602         exit 1
1603     ;;
1604 esac
1605
1606 libdir="${libdir:-$prefix/lib}"
1607 libexecdir="${libexecdir:-$prefix/libexec}"
1608 includedir="${includedir:-$prefix/include}"
1609
1610 if test "$mingw32" = "yes" ; then
1611     bindir="${bindir:-$prefix}"
1612 else
1613     bindir="${bindir:-$prefix/bin}"
1614 fi
1615 mandir="${mandir:-$prefix/share/man}"
1616 datadir="${datadir:-$prefix/share}"
1617 docdir="${docdir:-$prefix/share/doc}"
1618 sysconfdir="${sysconfdir:-$prefix/etc}"
1619 local_statedir="${local_statedir:-$prefix/var}"
1620 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1621 localedir="${localedir:-$datadir/locale}"
1622
1623 case "$cpu" in
1624     ppc)
1625            CPU_CFLAGS="-m32"
1626            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1627            ;;
1628     ppc64)
1629            CPU_CFLAGS="-m64"
1630            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1631            ;;
1632     sparc)
1633            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1634            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1635            ;;
1636     sparc64)
1637            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1638            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1639            ;;
1640     s390)
1641            CPU_CFLAGS="-m31"
1642            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1643            ;;
1644     s390x)
1645            CPU_CFLAGS="-m64"
1646            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1647            ;;
1648     i386)
1649            CPU_CFLAGS="-m32"
1650            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1651            ;;
1652     x86_64)
1653            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1654            # If we truly care, we should simply detect this case at
1655            # runtime and generate the fallback to serial emulation.
1656            CPU_CFLAGS="-m64 -mcx16"
1657            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1658            ;;
1659     x32)
1660            CPU_CFLAGS="-mx32"
1661            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1662            ;;
1663     # No special flags required for other host CPUs
1664 esac
1665
1666 eval "cross_cc_${cpu}=\$cc"
1667 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1668 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1669
1670 # For user-mode emulation the host arch has to be one we explicitly
1671 # support, even if we're using TCI.
1672 if [ "$ARCH" = "unknown" ]; then
1673   bsd_user="no"
1674   linux_user="no"
1675 fi
1676
1677 default_target_list=""
1678 deprecated_targets_list=ppc64abi32-linux-user
1679 deprecated_features=""
1680 mak_wilds=""
1681
1682 if [ "$softmmu" = "yes" ]; then
1683     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1684 fi
1685 if [ "$linux_user" = "yes" ]; then
1686     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1687 fi
1688 if [ "$bsd_user" = "yes" ]; then
1689     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1690 fi
1691
1692 # If the user doesn't explicitly specify a deprecated target we will
1693 # skip it.
1694 if test -z "$target_list"; then
1695     if test -z "$target_list_exclude"; then
1696         target_list_exclude="$deprecated_targets_list"
1697     else
1698         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1699     fi
1700 fi
1701
1702 for config in $mak_wilds; do
1703     target="$(basename "$config" .mak)"
1704     if echo "$target_list_exclude" | grep -vq "$target"; then
1705         default_target_list="${default_target_list} $target"
1706     fi
1707 done
1708
1709 # Enumerate public trace backends for --help output
1710 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1711
1712 if test x"$show_help" = x"yes" ; then
1713 cat << EOF
1714
1715 Usage: configure [options]
1716 Options: [defaults in brackets after descriptions]
1717
1718 Standard options:
1719   --help                   print this message
1720   --prefix=PREFIX          install in PREFIX [$prefix]
1721   --interp-prefix=PREFIX   where to find shared libraries, etc.
1722                            use %M for cpu name [$interp_prefix]
1723   --target-list=LIST       set target list (default: build all non-deprecated)
1724 $(echo Available targets: $default_target_list | \
1725   fold -s -w 53 | sed -e 's/^/                           /')
1726 $(echo Deprecated targets: $deprecated_targets_list | \
1727   fold -s -w 53 | sed -e 's/^/                           /')
1728   --target-list-exclude=LIST exclude a set of targets from the default target-list
1729
1730 Advanced options (experts only):
1731   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1732   --cc=CC                  use C compiler CC [$cc]
1733   --iasl=IASL              use ACPI compiler IASL [$iasl]
1734   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1735                            build time
1736   --cxx=CXX                use C++ compiler CXX [$cxx]
1737   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1738   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1739   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1740   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1741   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1742   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1743   --make=MAKE              use specified make [$make]
1744   --python=PYTHON          use specified python [$python]
1745   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1746   --meson=MESON            use specified meson [$meson]
1747   --ninja=NINJA            use specified ninja [$ninja]
1748   --smbd=SMBD              use specified smbd [$smbd]
1749   --with-git=GIT           use specified git [$git]
1750   --with-git-submodules=update   update git submodules (default if .git dir exists)
1751   --with-git-submodules=validate fail if git submodules are not up to date
1752   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1753   --static                 enable static build [$static]
1754   --mandir=PATH            install man pages in PATH
1755   --datadir=PATH           install firmware in PATH/$qemu_suffix
1756   --localedir=PATH         install translation in PATH/$qemu_suffix
1757   --docdir=PATH            install documentation in PATH/$qemu_suffix
1758   --bindir=PATH            install binaries in PATH
1759   --libdir=PATH            install libraries in PATH
1760   --libexecdir=PATH        install helper binaries in PATH
1761   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1762   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1763   --firmwarepath=PATH      search PATH for firmware files
1764   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1765   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1766   --with-pkgversion=VERS   use specified string as sub-version of the package
1767   --without-default-features default all --enable-* options to "disabled"
1768   --without-default-devices  do not include any device that is not needed to
1769                            start the emulator (only use if you are including
1770                            desired devices in default-configs/devices/)
1771   --enable-debug           enable common debug build options
1772   --enable-sanitizers      enable default sanitizers
1773   --enable-tsan            enable thread sanitizer
1774   --disable-strip          disable stripping binaries
1775   --disable-werror         disable compilation abort on warning
1776   --disable-stack-protector disable compiler-provided stack protection
1777   --audio-drv-list=LIST    set audio drivers list:
1778                            Available drivers: $audio_possible_drivers
1779   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1780   --block-drv-rw-whitelist=L
1781                            set block driver read-write whitelist
1782                            (affects only QEMU, not qemu-img)
1783   --block-drv-ro-whitelist=L
1784                            set block driver read-only whitelist
1785                            (affects only QEMU, not qemu-img)
1786   --enable-trace-backends=B Set trace backend
1787                            Available backends: $trace_backend_list
1788   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1789                            Default:trace-<pid>
1790   --disable-slirp          disable SLIRP userspace network connectivity
1791   --enable-tcg-interpreter enable TCI (TCG with bytecode interpreter, experimental and slow)
1792   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1793   --oss-lib                path to OSS library
1794   --cpu=CPU                Build for host CPU [$cpu]
1795   --with-coroutine=BACKEND coroutine backend. Supported options:
1796                            ucontext, sigaltstack, windows
1797   --enable-gcov            enable test coverage analysis with gcov
1798   --disable-blobs          disable installing provided firmware blobs
1799   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1800   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1801   --tls-priority           default TLS protocol/cipher priority string
1802   --enable-gprof           QEMU profiling with gprof
1803   --enable-profiler        profiler support
1804   --enable-debug-stack-usage
1805                            track the maximum stack usage of stacks created by qemu_alloc_stack
1806   --enable-plugins
1807                            enable plugins via shared library loading
1808   --disable-containers     don't use containers for cross-building
1809   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1810
1811 Optional features, enabled with --enable-FEATURE and
1812 disabled with --disable-FEATURE, default is enabled if available
1813 (unless built with --without-default-features):
1814
1815   system          all system emulation targets
1816   user            supported user emulation targets
1817   linux-user      all linux usermode emulation targets
1818   bsd-user        all BSD usermode emulation targets
1819   docs            build documentation
1820   guest-agent     build the QEMU Guest Agent
1821   guest-agent-msi build guest agent Windows MSI installation package
1822   pie             Position Independent Executables
1823   modules         modules support (non-Windows)
1824   module-upgrades try to load modules from alternate paths for upgrades
1825   debug-tcg       TCG debugging (default is disabled)
1826   debug-info      debugging information
1827   lto             Enable Link-Time Optimization.
1828   sparse          sparse checker
1829   safe-stack      SafeStack Stack Smash Protection. Depends on
1830                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1831   cfi             Enable Control-Flow Integrity for indirect function calls.
1832                   In case of a cfi violation, QEMU is terminated with SIGILL
1833                   Depends on lto and is incompatible with modules
1834                   Automatically enables Link-Time Optimization (lto)
1835   cfi-debug       In case of a cfi violation, a message containing the line that
1836                   triggered the error is written to stderr. After the error,
1837                   QEMU is still terminated with SIGILL
1838   gnutls          GNUTLS cryptography support
1839   nettle          nettle cryptography support
1840   gcrypt          libgcrypt cryptography support
1841   auth-pam        PAM access control
1842   sdl             SDL UI
1843   sdl-image       SDL Image support for icons
1844   gtk             gtk UI
1845   vte             vte support for the gtk UI
1846   curses          curses UI
1847   iconv           font glyph conversion support
1848   vnc             VNC UI support
1849   vnc-sasl        SASL encryption for VNC server
1850   vnc-jpeg        JPEG lossy compression for VNC server
1851   vnc-png         PNG compression for VNC server
1852   cocoa           Cocoa UI (Mac OS X only)
1853   virtfs          VirtFS
1854   virtiofsd       build virtiofs daemon (virtiofsd)
1855   libudev         Use libudev to enumerate host devices
1856   mpath           Multipath persistent reservation passthrough
1857   xen             xen backend driver support
1858   xen-pci-passthrough    PCI passthrough support for Xen
1859   brlapi          BrlAPI (Braile)
1860   curl            curl connectivity
1861   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1862   fdt             fdt device tree
1863   kvm             KVM acceleration support
1864   hax             HAX acceleration support
1865   hvf             Hypervisor.framework acceleration support
1866   nvmm            NVMM acceleration support
1867   whpx            Windows Hypervisor Platform acceleration support
1868   rdma            Enable RDMA-based migration
1869   pvrdma          Enable PVRDMA support
1870   vde             support for vde network
1871   netmap          support for netmap network
1872   linux-aio       Linux AIO support
1873   linux-io-uring  Linux io_uring support
1874   cap-ng          libcap-ng support
1875   attr            attr and xattr support
1876   vhost-net       vhost-net kernel acceleration support
1877   vhost-vsock     virtio sockets device support
1878   vhost-scsi      vhost-scsi kernel target support
1879   vhost-crypto    vhost-user-crypto backend support
1880   vhost-kernel    vhost kernel backend support
1881   vhost-user      vhost-user backend support
1882   vhost-user-blk-server    vhost-user-blk server support
1883   vhost-vdpa      vhost-vdpa kernel backend support
1884   bpf             BPF kernel support
1885   spice           spice
1886   spice-protocol  spice-protocol
1887   rbd             rados block device (rbd)
1888   libiscsi        iscsi support
1889   libnfs          nfs support
1890   smartcard       smartcard support (libcacard)
1891   u2f             U2F support (u2f-emu)
1892   libusb          libusb (for usb passthrough)
1893   live-block-migration   Block migration in the main migration stream
1894   usb-redir       usb network redirection support
1895   lzo             support of lzo compression library
1896   snappy          support of snappy compression library
1897   bzip2           support of bzip2 compression library
1898                   (for reading bzip2-compressed dmg images)
1899   lzfse           support of lzfse compression library
1900                   (for reading lzfse-compressed dmg images)
1901   zstd            support for zstd compression library
1902                   (for migration compression and qcow2 cluster compression)
1903   seccomp         seccomp support
1904   coroutine-pool  coroutine freelist (better performance)
1905   glusterfs       GlusterFS backend
1906   tpm             TPM support
1907   libssh          ssh block device support
1908   numa            libnuma support
1909   libxml2         for Parallels image format
1910   tcmalloc        tcmalloc support
1911   jemalloc        jemalloc support
1912   avx2            AVX2 optimization support
1913   avx512f         AVX512F optimization support
1914   replication     replication support
1915   opengl          opengl support
1916   virglrenderer   virgl rendering support
1917   xfsctl          xfsctl support
1918   qom-cast-debug  cast debugging support
1919   tools           build qemu-io, qemu-nbd and qemu-img tools
1920   bochs           bochs image format support
1921   cloop           cloop image format support
1922   dmg             dmg image format support
1923   qcow1           qcow v1 image format support
1924   vdi             vdi image format support
1925   vvfat           vvfat image format support
1926   qed             qed image format support
1927   parallels       parallels image format support
1928   crypto-afalg    Linux AF_ALG crypto backend driver
1929   capstone        capstone disassembler support
1930   debug-mutex     mutex debugging support
1931   libpmem         libpmem support
1932   xkbcommon       xkbcommon support
1933   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1934   libdaxctl       libdaxctl support
1935   fuse            FUSE block device export
1936   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
1937   multiprocess    Out of process device emulation support
1938   gio             libgio support
1939   slirp-smbd      use smbd (at path --smbd=*) in slirp networking
1940
1941 NOTE: The object files are built at the place where configure is launched
1942 EOF
1943 exit 0
1944 fi
1945
1946 # Remove old dependency files to make sure that they get properly regenerated
1947 rm -f */config-devices.mak.d
1948
1949 if test -z "$python"
1950 then
1951     error_exit "Python not found. Use --python=/path/to/python"
1952 fi
1953 if ! has "$make"
1954 then
1955     error_exit "GNU make ($make) not found"
1956 fi
1957
1958 # Note that if the Python conditional here evaluates True we will exit
1959 # with status 1 which is a shell 'false' value.
1960 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1961   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1962       "Use --python=/path/to/python to specify a supported Python."
1963 fi
1964
1965 # Preserve python version since some functionality is dependent on it
1966 python_version=$($python -c 'import sys; print("%d.%d.%d" % (sys.version_info[0], sys.version_info[1], sys.version_info[2]))' 2>/dev/null)
1967
1968 # Suppress writing compiled files
1969 python="$python -B"
1970
1971 if test -z "$meson"; then
1972     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1973         meson=meson
1974     elif test $git_submodules_action != 'ignore' ; then
1975         meson=git
1976     elif test -e "${source_path}/meson/meson.py" ; then
1977         meson=internal
1978     else
1979         if test "$explicit_python" = yes; then
1980             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1981         else
1982             error_exit "Meson not found.  Use --meson=/path/to/meson"
1983         fi
1984     fi
1985 else
1986     # Meson uses its own Python interpreter to invoke other Python scripts,
1987     # but the user wants to use the one they specified with --python.
1988     #
1989     # We do not want to override the distro Python interpreter (and sometimes
1990     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1991     # just require --meson=git|internal together with --python.
1992     if test "$explicit_python" = yes; then
1993         case "$meson" in
1994             git | internal) ;;
1995             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1996         esac
1997     fi
1998 fi
1999
2000 if test "$meson" = git; then
2001     git_submodules="${git_submodules} meson"
2002 fi
2003
2004 case "$meson" in
2005     git | internal)
2006         meson="$python ${source_path}/meson/meson.py"
2007         ;;
2008     *) meson=$(command -v "$meson") ;;
2009 esac
2010
2011 # Probe for ninja
2012
2013 if test -z "$ninja"; then
2014     for c in ninja ninja-build samu; do
2015         if has $c; then
2016             ninja=$(command -v "$c")
2017             break
2018         fi
2019     done
2020     if test -z "$ninja"; then
2021       error_exit "Cannot find Ninja"
2022     fi
2023 fi
2024
2025 # Check that the C compiler works. Doing this here before testing
2026 # the host CPU ensures that we had a valid CC to autodetect the
2027 # $cpu var (and we should bail right here if that's not the case).
2028 # It also allows the help message to be printed without a CC.
2029 write_c_skeleton;
2030 if compile_object ; then
2031   : C compiler works ok
2032 else
2033     error_exit "\"$cc\" either does not exist or does not work"
2034 fi
2035 if ! compile_prog ; then
2036     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
2037 fi
2038
2039 # Consult white-list to determine whether to enable werror
2040 # by default.  Only enable by default for git builds
2041 if test -z "$werror" ; then
2042     if test "$git_submodules_action" != "ignore" && \
2043         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2044         werror="yes"
2045     else
2046         werror="no"
2047     fi
2048 fi
2049
2050 if test "$targetos" = "bogus"; then
2051     # Now that we know that we're not printing the help and that
2052     # the compiler works (so the results of the check_defines we used
2053     # to identify the OS are reliable), if we didn't recognize the
2054     # host OS we should stop now.
2055     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2056 fi
2057
2058 # Check whether the compiler matches our minimum requirements:
2059 cat > $TMPC << EOF
2060 #if defined(__clang_major__) && defined(__clang_minor__)
2061 # ifdef __apple_build_version__
2062 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
2063 #   error You need at least XCode Clang v10.0 to compile QEMU
2064 #  endif
2065 # else
2066 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
2067 #   error You need at least Clang v6.0 to compile QEMU
2068 #  endif
2069 # endif
2070 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2071 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 5)
2072 #  error You need at least GCC v7.5.0 to compile QEMU
2073 # endif
2074 #else
2075 # error You either need GCC or Clang to compiler QEMU
2076 #endif
2077 int main (void) { return 0; }
2078 EOF
2079 if ! compile_prog "" "" ; then
2080     error_exit "You need at least GCC v7.5 or Clang v6.0 (or XCode Clang v10.0)"
2081 fi
2082
2083 # Accumulate -Wfoo and -Wno-bar separately.
2084 # We will list all of the enable flags first, and the disable flags second.
2085 # Note that we do not add -Werror, because that would enable it for all
2086 # configure tests. If a configure test failed due to -Werror this would
2087 # just silently disable some features, so it's too error prone.
2088
2089 warn_flags=
2090 add_to warn_flags -Wold-style-declaration
2091 add_to warn_flags -Wold-style-definition
2092 add_to warn_flags -Wtype-limits
2093 add_to warn_flags -Wformat-security
2094 add_to warn_flags -Wformat-y2k
2095 add_to warn_flags -Winit-self
2096 add_to warn_flags -Wignored-qualifiers
2097 add_to warn_flags -Wempty-body
2098 add_to warn_flags -Wnested-externs
2099 add_to warn_flags -Wendif-labels
2100 add_to warn_flags -Wexpansion-to-defined
2101 add_to warn_flags -Wimplicit-fallthrough=2
2102
2103 nowarn_flags=
2104 add_to nowarn_flags -Wno-initializer-overrides
2105 add_to nowarn_flags -Wno-missing-include-dirs
2106 add_to nowarn_flags -Wno-shift-negative-value
2107 add_to nowarn_flags -Wno-string-plus-int
2108 add_to nowarn_flags -Wno-typedef-redefinition
2109 add_to nowarn_flags -Wno-tautological-type-limit-compare
2110 add_to nowarn_flags -Wno-psabi
2111
2112 gcc_flags="$warn_flags $nowarn_flags"
2113
2114 cc_has_warning_flag() {
2115     write_c_skeleton;
2116
2117     # Use the positive sense of the flag when testing for -Wno-wombat
2118     # support (gcc will happily accept the -Wno- form of unknown
2119     # warning options).
2120     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2121     compile_prog "-Werror $optflag" ""
2122 }
2123
2124 for flag in $gcc_flags; do
2125     if cc_has_warning_flag $flag ; then
2126         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2127     fi
2128 done
2129
2130 if test "$stack_protector" != "no"; then
2131   cat > $TMPC << EOF
2132 int main(int argc, char *argv[])
2133 {
2134     char arr[64], *p = arr, *c = argv[0];
2135     while (*c) {
2136         *p++ = *c++;
2137     }
2138     return 0;
2139 }
2140 EOF
2141   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2142   sp_on=0
2143   for flag in $gcc_flags; do
2144     # We need to check both a compile and a link, since some compiler
2145     # setups fail only on a .c->.o compile and some only at link time
2146     if compile_object "-Werror $flag" &&
2147        compile_prog "-Werror $flag" ""; then
2148       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2149       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2150       sp_on=1
2151       break
2152     fi
2153   done
2154   if test "$stack_protector" = yes; then
2155     if test $sp_on = 0; then
2156       error_exit "Stack protector not supported"
2157     fi
2158   fi
2159 fi
2160
2161 # Disable -Wmissing-braces on older compilers that warn even for
2162 # the "universal" C zero initializer {0}.
2163 cat > $TMPC << EOF
2164 struct {
2165   int a[2];
2166 } x = {0};
2167 EOF
2168 if compile_object "-Werror" "" ; then
2169   :
2170 else
2171   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2172 fi
2173
2174 # Our module code doesn't support Windows
2175 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2176   error_exit "Modules are not available for Windows"
2177 fi
2178
2179 # module_upgrades is only reasonable if modules are enabled
2180 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2181   error_exit "Can't enable module-upgrades as Modules are not enabled"
2182 fi
2183
2184 # Static linking is not possible with modules or PIE
2185 if test "$static" = "yes" ; then
2186   if test "$modules" = "yes" ; then
2187     error_exit "static and modules are mutually incompatible"
2188   fi
2189 fi
2190
2191 # Unconditional check for compiler __thread support
2192   cat > $TMPC << EOF
2193 static __thread int tls_var;
2194 int main(void) { return tls_var; }
2195 EOF
2196
2197 if ! compile_prog "-Werror" "" ; then
2198     error_exit "Your compiler does not support the __thread specifier for " \
2199         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2200 fi
2201
2202 cat > $TMPC << EOF
2203
2204 #ifdef __linux__
2205 #  define THREAD __thread
2206 #else
2207 #  define THREAD
2208 #endif
2209 static THREAD int tls_var;
2210 int main(void) { return tls_var; }
2211 EOF
2212
2213 # Check we support --no-pie first; we will need this for building ROMs.
2214 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2215   CFLAGS_NOPIE="-fno-pie"
2216 fi
2217
2218 if test "$static" = "yes"; then
2219   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2220     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2221     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2222     pie="yes"
2223   elif test "$pie" = "yes"; then
2224     error_exit "-static-pie not available due to missing toolchain support"
2225   else
2226     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2227     pie="no"
2228   fi
2229 elif test "$pie" = "no"; then
2230   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2231 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2232   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2233   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2234   pie="yes"
2235 elif test "$pie" = "yes"; then
2236   error_exit "PIE not available due to missing toolchain support"
2237 else
2238   echo "Disabling PIE due to missing toolchain support"
2239   pie="no"
2240 fi
2241
2242 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2243 # The combination is known as "full relro", because .got.plt is read-only too.
2244 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2245   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2246 fi
2247
2248 ##########################################
2249 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2250 # use i686 as default anyway, but for those that don't, an explicit
2251 # specification is necessary
2252
2253 if test "$cpu" = "i386"; then
2254   cat > $TMPC << EOF
2255 static int sfaa(int *ptr)
2256 {
2257   return __sync_fetch_and_and(ptr, 0);
2258 }
2259
2260 int main(void)
2261 {
2262   int val = 42;
2263   val = __sync_val_compare_and_swap(&val, 0, 1);
2264   sfaa(&val);
2265   return val;
2266 }
2267 EOF
2268   if ! compile_prog "" "" ; then
2269     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2270   fi
2271 fi
2272
2273 #########################################
2274 # Solaris specific configure tool chain decisions
2275
2276 if test "$solaris" = "yes" ; then
2277   if has ar; then
2278     :
2279   else
2280     if test -f /usr/ccs/bin/ar ; then
2281       error_exit "No path includes ar" \
2282           "Add /usr/ccs/bin to your path and rerun configure"
2283     fi
2284     error_exit "No path includes ar"
2285   fi
2286 fi
2287
2288 if test "$tcg" = "enabled"; then
2289     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
2290     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
2291 fi
2292
2293 if test -z "${target_list+xxx}" ; then
2294     default_targets=yes
2295     for target in $default_target_list; do
2296         target_list="$target_list $target"
2297     done
2298     target_list="${target_list# }"
2299 else
2300     default_targets=no
2301     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2302     for target in $target_list; do
2303         # Check that we recognised the target name; this allows a more
2304         # friendly error message than if we let it fall through.
2305         case " $default_target_list " in
2306             *" $target "*)
2307                 ;;
2308             *)
2309                 error_exit "Unknown target name '$target'"
2310                 ;;
2311         esac
2312     done
2313 fi
2314
2315 for target in $target_list; do
2316     # if a deprecated target is enabled we note it here
2317     if echo "$deprecated_targets_list" | grep -q "$target"; then
2318         add_to deprecated_features $target
2319     fi
2320 done
2321
2322 # see if system emulation was really requested
2323 case " $target_list " in
2324   *"-softmmu "*) softmmu=yes
2325   ;;
2326   *) softmmu=no
2327   ;;
2328 esac
2329
2330 feature_not_found() {
2331   feature=$1
2332   remedy=$2
2333
2334   error_exit "User requested feature $feature" \
2335       "configure was not able to find it." \
2336       "$remedy"
2337 }
2338
2339 # ---
2340 # big/little endian test
2341 cat > $TMPC << EOF
2342 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2343 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2344 extern int foo(short *, short *);
2345 int main(int argc, char *argv[]) {
2346     return foo(big_endian, little_endian);
2347 }
2348 EOF
2349
2350 if compile_object ; then
2351     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2352         bigendian="yes"
2353     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2354         bigendian="no"
2355     else
2356         echo big/little test failed
2357     fi
2358 else
2359     echo big/little test failed
2360 fi
2361
2362 ##########################################
2363 # system tools
2364 if test -z "$want_tools"; then
2365     if test "$softmmu" = "no"; then
2366         want_tools=no
2367     else
2368         want_tools=yes
2369     fi
2370 fi
2371
2372 ##########################################
2373 # Disable features only meaningful for system-mode emulation
2374 if test "$softmmu" = "no"; then
2375     audio_drv_list=""
2376 fi
2377
2378 ##########################################
2379 # 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 ##########################################
3339 # TPM emulation is only on POSIX
3340
3341 if test "$tpm" = ""; then
3342   if test "$mingw32" = "yes"; then
3343     tpm=no
3344   else
3345     tpm=yes
3346   fi
3347 elif test "$tpm" = "yes"; then
3348   if test "$mingw32" = "yes" ; then
3349     error_exit "TPM emulation only available on POSIX systems"
3350   fi
3351 fi
3352
3353 ##########################################
3354 # iovec probe
3355 cat > $TMPC <<EOF
3356 #include <sys/types.h>
3357 #include <sys/uio.h>
3358 #include <unistd.h>
3359 int main(void) { return sizeof(struct iovec); }
3360 EOF
3361 iovec=no
3362 if compile_prog "" "" ; then
3363   iovec=yes
3364 fi
3365
3366 ##########################################
3367 # fdt probe
3368
3369 case "$fdt" in
3370   auto | enabled | internal)
3371     # Simpler to always update submodule, even if not needed.
3372     git_submodules="${git_submodules} dtc"
3373     ;;
3374 esac
3375
3376 ##########################################
3377 # opengl probe (for sdl2, gtk)
3378
3379 gbm="no"
3380 if $pkg_config gbm; then
3381     gbm_cflags="$($pkg_config --cflags gbm)"
3382     gbm_libs="$($pkg_config --libs gbm)"
3383     gbm="yes"
3384 fi
3385
3386 if test "$opengl" != "no" ; then
3387   epoxy=no
3388   if $pkg_config epoxy; then
3389     cat > $TMPC << EOF
3390 #include <epoxy/egl.h>
3391 int main(void) { return 0; }
3392 EOF
3393     if compile_prog "" "" ; then
3394       epoxy=yes
3395     fi
3396   fi
3397
3398   if test "$epoxy" = "yes" ; then
3399     opengl_cflags="$($pkg_config --cflags epoxy)"
3400     opengl_libs="$($pkg_config --libs epoxy)"
3401     opengl=yes
3402   else
3403     if test "$opengl" = "yes" ; then
3404       feature_not_found "opengl" "Please install epoxy with EGL"
3405     fi
3406     opengl_cflags=""
3407     opengl_libs=""
3408     opengl=no
3409   fi
3410 fi
3411
3412 # Check for inotify functions when we are building linux-user
3413 # emulator.  This is done because older glibc versions don't
3414 # have syscall stubs for these implemented.  In that case we
3415 # don't provide them even if kernel supports them.
3416 #
3417 inotify=no
3418 cat > $TMPC << EOF
3419 #include <sys/inotify.h>
3420
3421 int
3422 main(void)
3423 {
3424         /* try to start inotify */
3425         return inotify_init();
3426 }
3427 EOF
3428 if compile_prog "" "" ; then
3429   inotify=yes
3430 fi
3431
3432 inotify1=no
3433 cat > $TMPC << EOF
3434 #include <sys/inotify.h>
3435
3436 int
3437 main(void)
3438 {
3439     /* try to start inotify */
3440     return inotify_init1(0);
3441 }
3442 EOF
3443 if compile_prog "" "" ; then
3444   inotify1=yes
3445 fi
3446
3447 # check if pipe2 is there
3448 pipe2=no
3449 cat > $TMPC << EOF
3450 #include <unistd.h>
3451 #include <fcntl.h>
3452
3453 int main(void)
3454 {
3455     int pipefd[2];
3456     return pipe2(pipefd, O_CLOEXEC);
3457 }
3458 EOF
3459 if compile_prog "" "" ; then
3460   pipe2=yes
3461 fi
3462
3463 # check if accept4 is there
3464 accept4=no
3465 cat > $TMPC << EOF
3466 #include <sys/socket.h>
3467 #include <stddef.h>
3468
3469 int main(void)
3470 {
3471     accept4(0, NULL, NULL, SOCK_CLOEXEC);
3472     return 0;
3473 }
3474 EOF
3475 if compile_prog "" "" ; then
3476   accept4=yes
3477 fi
3478
3479 # check if tee/splice is there. vmsplice was added same time.
3480 splice=no
3481 cat > $TMPC << EOF
3482 #include <unistd.h>
3483 #include <fcntl.h>
3484 #include <limits.h>
3485
3486 int main(void)
3487 {
3488     int len, fd = 0;
3489     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
3490     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
3491     return 0;
3492 }
3493 EOF
3494 if compile_prog "" "" ; then
3495   splice=yes
3496 fi
3497
3498 ##########################################
3499 # libnuma probe
3500
3501 if test "$numa" != "no" ; then
3502   cat > $TMPC << EOF
3503 #include <numa.h>
3504 int main(void) { return numa_available(); }
3505 EOF
3506
3507   if compile_prog "" "-lnuma" ; then
3508     numa=yes
3509     numa_libs="-lnuma"
3510   else
3511     if test "$numa" = "yes" ; then
3512       feature_not_found "numa" "install numactl devel"
3513     fi
3514     numa=no
3515   fi
3516 fi
3517
3518 malloc=system
3519 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
3520     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
3521     exit 1
3522 elif test "$tcmalloc" = "yes" ; then
3523     malloc=tcmalloc
3524 elif test "$jemalloc" = "yes" ; then
3525     malloc=jemalloc
3526 fi
3527
3528 ##########################################
3529 # signalfd probe
3530 signalfd="no"
3531 cat > $TMPC << EOF
3532 #include <unistd.h>
3533 #include <sys/syscall.h>
3534 #include <signal.h>
3535 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
3536 EOF
3537
3538 if compile_prog "" "" ; then
3539   signalfd=yes
3540 fi
3541
3542 # check if optreset global is declared by <getopt.h>
3543 optreset="no"
3544 cat > $TMPC << EOF
3545 #include <getopt.h>
3546 int main(void) { return optreset; }
3547 EOF
3548
3549 if compile_prog "" "" ; then
3550   optreset=yes
3551 fi
3552
3553 # check if eventfd is supported
3554 eventfd=no
3555 cat > $TMPC << EOF
3556 #include <sys/eventfd.h>
3557
3558 int main(void)
3559 {
3560     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
3561 }
3562 EOF
3563 if compile_prog "" "" ; then
3564   eventfd=yes
3565 fi
3566
3567 # check if memfd is supported
3568 memfd=no
3569 cat > $TMPC << EOF
3570 #include <sys/mman.h>
3571
3572 int main(void)
3573 {
3574     return memfd_create("foo", MFD_ALLOW_SEALING);
3575 }
3576 EOF
3577 if compile_prog "" "" ; then
3578   memfd=yes
3579 fi
3580
3581 # check for usbfs
3582 have_usbfs=no
3583 if test "$linux_user" = "yes"; then
3584   cat > $TMPC << EOF
3585 #include <linux/usbdevice_fs.h>
3586
3587 #ifndef USBDEVFS_GET_CAPABILITIES
3588 #error "USBDEVFS_GET_CAPABILITIES undefined"
3589 #endif
3590
3591 #ifndef USBDEVFS_DISCONNECT_CLAIM
3592 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
3593 #endif
3594
3595 int main(void)
3596 {
3597     return 0;
3598 }
3599 EOF
3600   if compile_prog "" ""; then
3601     have_usbfs=yes
3602   fi
3603 fi
3604
3605 # check for fallocate
3606 fallocate=no
3607 cat > $TMPC << EOF
3608 #include <fcntl.h>
3609
3610 int main(void)
3611 {
3612     fallocate(0, 0, 0, 0);
3613     return 0;
3614 }
3615 EOF
3616 if compile_prog "" "" ; then
3617   fallocate=yes
3618 fi
3619
3620 # check for fallocate hole punching
3621 fallocate_punch_hole=no
3622 cat > $TMPC << EOF
3623 #include <fcntl.h>
3624 #include <linux/falloc.h>
3625
3626 int main(void)
3627 {
3628     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
3629     return 0;
3630 }
3631 EOF
3632 if compile_prog "" "" ; then
3633   fallocate_punch_hole=yes
3634 fi
3635
3636 # check that fallocate supports range zeroing inside the file
3637 fallocate_zero_range=no
3638 cat > $TMPC << EOF
3639 #include <fcntl.h>
3640 #include <linux/falloc.h>
3641
3642 int main(void)
3643 {
3644     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
3645     return 0;
3646 }
3647 EOF
3648 if compile_prog "" "" ; then
3649   fallocate_zero_range=yes
3650 fi
3651
3652 # check for posix_fallocate
3653 posix_fallocate=no
3654 cat > $TMPC << EOF
3655 #include <fcntl.h>
3656
3657 int main(void)
3658 {
3659     posix_fallocate(0, 0, 0);
3660     return 0;
3661 }
3662 EOF
3663 if compile_prog "" "" ; then
3664     posix_fallocate=yes
3665 fi
3666
3667 # check for sync_file_range
3668 sync_file_range=no
3669 cat > $TMPC << EOF
3670 #include <fcntl.h>
3671
3672 int main(void)
3673 {
3674     sync_file_range(0, 0, 0, 0);
3675     return 0;
3676 }
3677 EOF
3678 if compile_prog "" "" ; then
3679   sync_file_range=yes
3680 fi
3681
3682 # check for linux/fiemap.h and FS_IOC_FIEMAP
3683 fiemap=no
3684 cat > $TMPC << EOF
3685 #include <sys/ioctl.h>
3686 #include <linux/fs.h>
3687 #include <linux/fiemap.h>
3688
3689 int main(void)
3690 {
3691     ioctl(0, FS_IOC_FIEMAP, 0);
3692     return 0;
3693 }
3694 EOF
3695 if compile_prog "" "" ; then
3696   fiemap=yes
3697 fi
3698
3699 # check for dup3
3700 dup3=no
3701 cat > $TMPC << EOF
3702 #include <unistd.h>
3703
3704 int main(void)
3705 {
3706     dup3(0, 0, 0);
3707     return 0;
3708 }
3709 EOF
3710 if compile_prog "" "" ; then
3711   dup3=yes
3712 fi
3713
3714 # check for ppoll support
3715 ppoll=no
3716 cat > $TMPC << EOF
3717 #include <poll.h>
3718
3719 int main(void)
3720 {
3721     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
3722     ppoll(&pfd, 1, 0, 0);
3723     return 0;
3724 }
3725 EOF
3726 if compile_prog "" "" ; then
3727   ppoll=yes
3728 fi
3729
3730 # check for prctl(PR_SET_TIMERSLACK , ... ) support
3731 prctl_pr_set_timerslack=no
3732 cat > $TMPC << EOF
3733 #include <sys/prctl.h>
3734
3735 int main(void)
3736 {
3737     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
3738     return 0;
3739 }
3740 EOF
3741 if compile_prog "" "" ; then
3742   prctl_pr_set_timerslack=yes
3743 fi
3744
3745 # check for epoll support
3746 epoll=no
3747 cat > $TMPC << EOF
3748 #include <sys/epoll.h>
3749
3750 int main(void)
3751 {
3752     epoll_create(0);
3753     return 0;
3754 }
3755 EOF
3756 if compile_prog "" "" ; then
3757   epoll=yes
3758 fi
3759
3760 # epoll_create1 is a later addition
3761 # so we must check separately for its presence
3762 epoll_create1=no
3763 cat > $TMPC << EOF
3764 #include <sys/epoll.h>
3765
3766 int main(void)
3767 {
3768     /* Note that we use epoll_create1 as a value, not as
3769      * a function being called. This is necessary so that on
3770      * old SPARC glibc versions where the function was present in
3771      * the library but not declared in the header file we will
3772      * fail the configure check. (Otherwise we will get a compiler
3773      * warning but not an error, and will proceed to fail the
3774      * qemu compile where we compile with -Werror.)
3775      */
3776     return (int)(uintptr_t)&epoll_create1;
3777 }
3778 EOF
3779 if compile_prog "" "" ; then
3780   epoll_create1=yes
3781 fi
3782
3783 # check for sendfile support
3784 sendfile=no
3785 cat > $TMPC << EOF
3786 #include <sys/sendfile.h>
3787
3788 int main(void)
3789 {
3790     return sendfile(0, 0, 0, 0);
3791 }
3792 EOF
3793 if compile_prog "" "" ; then
3794   sendfile=yes
3795 fi
3796
3797 # check for timerfd support (glibc 2.8 and newer)
3798 timerfd=no
3799 cat > $TMPC << EOF
3800 #include <sys/timerfd.h>
3801
3802 int main(void)
3803 {
3804     return(timerfd_create(CLOCK_REALTIME, 0));
3805 }
3806 EOF
3807 if compile_prog "" "" ; then
3808   timerfd=yes
3809 fi
3810
3811 # check for setns and unshare support
3812 setns=no
3813 cat > $TMPC << EOF
3814 #include <sched.h>
3815
3816 int main(void)
3817 {
3818     int ret;
3819     ret = setns(0, 0);
3820     ret = unshare(0);
3821     return ret;
3822 }
3823 EOF
3824 if compile_prog "" "" ; then
3825   setns=yes
3826 fi
3827
3828 # clock_adjtime probe
3829 clock_adjtime=no
3830 cat > $TMPC <<EOF
3831 #include <time.h>
3832 #include <sys/timex.h>
3833
3834 int main(void)
3835 {
3836     return clock_adjtime(0, 0);
3837 }
3838 EOF
3839 clock_adjtime=no
3840 if compile_prog "" "" ; then
3841   clock_adjtime=yes
3842 fi
3843
3844 # syncfs probe
3845 syncfs=no
3846 cat > $TMPC <<EOF
3847 #include <unistd.h>
3848
3849 int main(void)
3850 {
3851     return syncfs(0);
3852 }
3853 EOF
3854 syncfs=no
3855 if compile_prog "" "" ; then
3856   syncfs=yes
3857 fi
3858
3859 # Search for bswap_32 function
3860 byteswap_h=no
3861 cat > $TMPC << EOF
3862 #include <byteswap.h>
3863 int main(void) { return bswap_32(0); }
3864 EOF
3865 if compile_prog "" "" ; then
3866   byteswap_h=yes
3867 fi
3868
3869 # Search for bswap32 function
3870 bswap_h=no
3871 cat > $TMPC << EOF
3872 #include <sys/endian.h>
3873 #include <sys/types.h>
3874 #include <machine/bswap.h>
3875 int main(void) { return bswap32(0); }
3876 EOF
3877 if compile_prog "" "" ; then
3878   bswap_h=yes
3879 fi
3880
3881 # Check whether we have openpty() in either libc or libutil
3882 cat > $TMPC << EOF
3883 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
3884 int main(void) { return openpty(0, 0, 0, 0, 0); }
3885 EOF
3886
3887 have_openpty="no"
3888 if compile_prog "" "" ; then
3889   have_openpty="yes"
3890 else
3891   if compile_prog "" "-lutil" ; then
3892     have_openpty="yes"
3893   fi
3894 fi
3895
3896 ##########################################
3897 # spice probe
3898 if test "$spice_protocol" != "no" ; then
3899   spice_protocol_cflags=$($pkg_config --cflags spice-protocol 2>/dev/null)
3900   if $pkg_config --atleast-version=0.12.3 spice-protocol; then
3901     spice_protocol="yes"
3902   else
3903     if test "$spice_protocol" = "yes" ; then
3904       feature_not_found "spice_protocol" \
3905           "Install spice-protocol(>=0.12.3) devel"
3906     fi
3907     spice_protocol="no"
3908   fi
3909 fi
3910
3911 if test "$spice" != "no" ; then
3912   cat > $TMPC << EOF
3913 #include <spice.h>
3914 int main(void) { spice_server_new(); return 0; }
3915 EOF
3916   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
3917   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
3918   if $pkg_config --atleast-version=0.12.5 spice-server && \
3919      test "$spice_protocol" = "yes" && \
3920      compile_prog "$spice_cflags" "$spice_libs" ; then
3921     spice="yes"
3922   else
3923     if test "$spice" = "yes" ; then
3924       feature_not_found "spice" \
3925           "Install spice-server(>=0.12.5) devel"
3926     fi
3927     spice="no"
3928   fi
3929 fi
3930
3931 ##########################################
3932 # check if we have VSS SDK headers for win
3933
3934 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
3935         test "$vss_win32_sdk" != "no" ; then
3936   case "$vss_win32_sdk" in
3937     "")   vss_win32_include="-isystem $source_path" ;;
3938     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
3939           # handle path with spaces. So we symlink the headers into ".sdk/vss".
3940           vss_win32_include="-isystem $source_path/.sdk/vss"
3941           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
3942           ;;
3943     *)    vss_win32_include="-isystem $vss_win32_sdk"
3944   esac
3945   cat > $TMPC << EOF
3946 #define __MIDL_user_allocate_free_DEFINED__
3947 #include <inc/win2003/vss.h>
3948 int main(void) { return VSS_CTX_BACKUP; }
3949 EOF
3950   if compile_prog "$vss_win32_include" "" ; then
3951     guest_agent_with_vss="yes"
3952     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
3953     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
3954     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
3955   else
3956     if test "$vss_win32_sdk" != "" ; then
3957       echo "ERROR: Please download and install Microsoft VSS SDK:"
3958       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
3959       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
3960       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
3961       echo "ERROR: The headers are extracted in the directory \`inc'."
3962       feature_not_found "VSS support"
3963     fi
3964     guest_agent_with_vss="no"
3965   fi
3966 fi
3967
3968 ##########################################
3969 # lookup Windows platform SDK (if not specified)
3970 # The SDK is needed only to build .tlb (type library) file of guest agent
3971 # VSS provider from the source. It is usually unnecessary because the
3972 # pre-compiled .tlb file is included.
3973
3974 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
3975         test "$guest_agent_with_vss" = "yes" ; then
3976   if test -z "$win_sdk"; then
3977     programfiles="$PROGRAMFILES"
3978     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
3979     if test -n "$programfiles"; then
3980       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
3981     else
3982       feature_not_found "Windows SDK"
3983     fi
3984   elif test "$win_sdk" = "no"; then
3985     win_sdk=""
3986   fi
3987 fi
3988
3989 ##########################################
3990 # check if mingw environment provides a recent ntddscsi.h
3991 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
3992   cat > $TMPC << EOF
3993 #include <windows.h>
3994 #include <ntddscsi.h>
3995 int main(void) {
3996 #if !defined(IOCTL_SCSI_GET_ADDRESS)
3997 #error Missing required ioctl definitions
3998 #endif
3999   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4000   return addr.Lun;
4001 }
4002 EOF
4003   if compile_prog "" "" ; then
4004     guest_agent_ntddscsi=yes
4005     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4006   fi
4007 fi
4008
4009 ##########################################
4010 # capstone
4011
4012 case "$capstone" in
4013   auto | enabled | internal)
4014     # Simpler to always update submodule, even if not needed.
4015     git_submodules="${git_submodules} capstone"
4016     ;;
4017 esac
4018
4019 ##########################################
4020 # check if we have fdatasync
4021
4022 fdatasync=no
4023 cat > $TMPC << EOF
4024 #include <unistd.h>
4025 int main(void) {
4026 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4027 return fdatasync(0);
4028 #else
4029 #error Not supported
4030 #endif
4031 }
4032 EOF
4033 if compile_prog "" "" ; then
4034     fdatasync=yes
4035 fi
4036
4037 ##########################################
4038 # check if we have madvise
4039
4040 madvise=no
4041 cat > $TMPC << EOF
4042 #include <sys/types.h>
4043 #include <sys/mman.h>
4044 #include <stddef.h>
4045 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4046 EOF
4047 if compile_prog "" "" ; then
4048     madvise=yes
4049 fi
4050
4051 ##########################################
4052 # check if we have posix_madvise
4053
4054 posix_madvise=no
4055 cat > $TMPC << EOF
4056 #include <sys/mman.h>
4057 #include <stddef.h>
4058 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4059 EOF
4060 if compile_prog "" "" ; then
4061     posix_madvise=yes
4062 fi
4063
4064 ##########################################
4065 # check if we have posix_memalign()
4066
4067 posix_memalign=no
4068 cat > $TMPC << EOF
4069 #include <stdlib.h>
4070 int main(void) {
4071     void *p;
4072     return posix_memalign(&p, 8, 8);
4073 }
4074 EOF
4075 if compile_prog "" "" ; then
4076     posix_memalign=yes
4077 fi
4078
4079 ##########################################
4080 # check if we have posix_syslog
4081
4082 posix_syslog=no
4083 cat > $TMPC << EOF
4084 #include <syslog.h>
4085 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4086 EOF
4087 if compile_prog "" "" ; then
4088     posix_syslog=yes
4089 fi
4090
4091 ##########################################
4092 # check if we have sem_timedwait
4093
4094 sem_timedwait=no
4095 cat > $TMPC << EOF
4096 #include <semaphore.h>
4097 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4098 EOF
4099 if compile_prog "" "" ; then
4100     sem_timedwait=yes
4101 fi
4102
4103 ##########################################
4104 # check if we have strchrnul
4105
4106 strchrnul=no
4107 cat > $TMPC << EOF
4108 #include <string.h>
4109 int main(void);
4110 // Use a haystack that the compiler shouldn't be able to constant fold
4111 char *haystack = (char*)&main;
4112 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4113 EOF
4114 if compile_prog "" "" ; then
4115     strchrnul=yes
4116 fi
4117
4118 #########################################
4119 # check if we have st_atim
4120
4121 st_atim=no
4122 cat > $TMPC << EOF
4123 #include <sys/stat.h>
4124 #include <stddef.h>
4125 int main(void) { return offsetof(struct stat, st_atim); }
4126 EOF
4127 if compile_prog "" "" ; then
4128     st_atim=yes
4129 fi
4130
4131 ##########################################
4132 # check if we have sigev_notify_thread_id
4133
4134 sigev_notify_thread_id=no
4135 cat > $TMPC << EOF
4136 #include <stddef.h>
4137 #include <signal.h>
4138 int main(void) { return offsetof(struct sigevent, sigev_notify_thread_id); }
4139 EOF
4140 if compile_prog "" "" ; then
4141     sigev_notify_thread_id=yes
4142 fi
4143
4144 ##########################################
4145 # check if trace backend exists
4146
4147 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4148 if test "$?" -ne 0 ; then
4149   error_exit "invalid trace backends" \
4150       "Please choose supported trace backends."
4151 fi
4152
4153 ##########################################
4154 # For 'ust' backend, test if ust headers are present
4155 if have_backend "ust"; then
4156   cat > $TMPC << EOF
4157 #include <lttng/tracepoint.h>
4158 int main(void) { return 0; }
4159 EOF
4160   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4161     if $pkg_config lttng-ust --exists; then
4162       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4163     else
4164       lttng_ust_libs="-llttng-ust -ldl"
4165     fi
4166     if $pkg_config liburcu-bp --exists; then
4167       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4168     else
4169       urcu_bp_libs="-lurcu-bp"
4170     fi
4171   else
4172     error_exit "Trace backend 'ust' missing lttng-ust header files"
4173   fi
4174 fi
4175
4176 ##########################################
4177 # For 'dtrace' backend, test if 'dtrace' command is present
4178 if have_backend "dtrace"; then
4179   if ! has 'dtrace' ; then
4180     error_exit "dtrace command is not found in PATH $PATH"
4181   fi
4182   trace_backend_stap="no"
4183   if has 'stap' ; then
4184     trace_backend_stap="yes"
4185
4186     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4187     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4188     # instead. QEMU --enable-modules depends on this because the SystemTap
4189     # semaphores are linked into the main binary and not the module's shared
4190     # object.
4191     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4192   fi
4193 fi
4194
4195 ##########################################
4196 # check and set a backend for coroutine
4197
4198 # We prefer ucontext, but it's not always possible. The fallback
4199 # is sigcontext. On Windows the only valid backend is the Windows
4200 # specific one.
4201
4202 ucontext_works=no
4203 if test "$darwin" != "yes"; then
4204   cat > $TMPC << EOF
4205 #include <ucontext.h>
4206 #ifdef __stub_makecontext
4207 #error Ignoring glibc stub makecontext which will always fail
4208 #endif
4209 int main(void) { makecontext(0, 0, 0); return 0; }
4210 EOF
4211   if compile_prog "" "" ; then
4212     ucontext_works=yes
4213   fi
4214 fi
4215
4216 if test "$coroutine" = ""; then
4217   if test "$mingw32" = "yes"; then
4218     coroutine=win32
4219   elif test "$ucontext_works" = "yes"; then
4220     coroutine=ucontext
4221   else
4222     coroutine=sigaltstack
4223   fi
4224 else
4225   case $coroutine in
4226   windows)
4227     if test "$mingw32" != "yes"; then
4228       error_exit "'windows' coroutine backend only valid for Windows"
4229     fi
4230     # Unfortunately the user visible backend name doesn't match the
4231     # coroutine-*.c filename for this case, so we have to adjust it here.
4232     coroutine=win32
4233     ;;
4234   ucontext)
4235     if test "$ucontext_works" != "yes"; then
4236       feature_not_found "ucontext"
4237     fi
4238     ;;
4239   sigaltstack)
4240     if test "$mingw32" = "yes"; then
4241       error_exit "only the 'windows' coroutine backend is valid for Windows"
4242     fi
4243     ;;
4244   *)
4245     error_exit "unknown coroutine backend $coroutine"
4246     ;;
4247   esac
4248 fi
4249
4250 if test "$coroutine_pool" = ""; then
4251   coroutine_pool=yes
4252 fi
4253
4254 if test "$debug_stack_usage" = "yes"; then
4255   if test "$coroutine_pool" = "yes"; then
4256     echo "WARN: disabling coroutine pool for stack usage debugging"
4257     coroutine_pool=no
4258   fi
4259 fi
4260
4261 ##################################################
4262 # SafeStack
4263
4264
4265 if test "$safe_stack" = "yes"; then
4266 cat > $TMPC << EOF
4267 int main(int argc, char *argv[])
4268 {
4269 #if ! __has_feature(safe_stack)
4270 #error SafeStack Disabled
4271 #endif
4272     return 0;
4273 }
4274 EOF
4275   flag="-fsanitize=safe-stack"
4276   # Check that safe-stack is supported and enabled.
4277   if compile_prog "-Werror $flag" "$flag"; then
4278     # Flag needed both at compilation and at linking
4279     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4280     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4281   else
4282     error_exit "SafeStack not supported by your compiler"
4283   fi
4284   if test "$coroutine" != "ucontext"; then
4285     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4286   fi
4287 else
4288 cat > $TMPC << EOF
4289 int main(int argc, char *argv[])
4290 {
4291 #if defined(__has_feature)
4292 #if __has_feature(safe_stack)
4293 #error SafeStack Enabled
4294 #endif
4295 #endif
4296     return 0;
4297 }
4298 EOF
4299 if test "$safe_stack" = "no"; then
4300   # Make sure that safe-stack is disabled
4301   if ! compile_prog "-Werror" ""; then
4302     # SafeStack was already enabled, try to explicitly remove the feature
4303     flag="-fno-sanitize=safe-stack"
4304     if ! compile_prog "-Werror $flag" "$flag"; then
4305       error_exit "Configure cannot disable SafeStack"
4306     fi
4307     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4308     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4309   fi
4310 else # "$safe_stack" = ""
4311   # Set safe_stack to yes or no based on pre-existing flags
4312   if compile_prog "-Werror" ""; then
4313     safe_stack="no"
4314   else
4315     safe_stack="yes"
4316     if test "$coroutine" != "ucontext"; then
4317       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4318     fi
4319   fi
4320 fi
4321 fi
4322
4323 ##########################################
4324 # check if we have open_by_handle_at
4325
4326 open_by_handle_at=no
4327 cat > $TMPC << EOF
4328 #include <fcntl.h>
4329 #if !defined(AT_EMPTY_PATH)
4330 # error missing definition
4331 #else
4332 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4333 #endif
4334 EOF
4335 if compile_prog "" "" ; then
4336     open_by_handle_at=yes
4337 fi
4338
4339 ########################################
4340 # check if we have linux/magic.h
4341
4342 linux_magic_h=no
4343 cat > $TMPC << EOF
4344 #include <linux/magic.h>
4345 int main(void) {
4346   return 0;
4347 }
4348 EOF
4349 if compile_prog "" "" ; then
4350     linux_magic_h=yes
4351 fi
4352
4353 ########################################
4354 # check if we have valgrind/valgrind.h
4355
4356 valgrind_h=no
4357 cat > $TMPC << EOF
4358 #include <valgrind/valgrind.h>
4359 int main(void) {
4360   return 0;
4361 }
4362 EOF
4363 if compile_prog "" "" ; then
4364     valgrind_h=yes
4365 fi
4366
4367 ########################################
4368 # check if environ is declared
4369
4370 has_environ=no
4371 cat > $TMPC << EOF
4372 #include <unistd.h>
4373 int main(void) {
4374     environ = 0;
4375     return 0;
4376 }
4377 EOF
4378 if compile_prog "" "" ; then
4379     has_environ=yes
4380 fi
4381
4382 ########################################
4383 # check if cpuid.h is usable.
4384
4385 cat > $TMPC << EOF
4386 #include <cpuid.h>
4387 int main(void) {
4388     unsigned a, b, c, d;
4389     int max = __get_cpuid_max(0, 0);
4390
4391     if (max >= 1) {
4392         __cpuid(1, a, b, c, d);
4393     }
4394
4395     if (max >= 7) {
4396         __cpuid_count(7, 0, a, b, c, d);
4397     }
4398
4399     return 0;
4400 }
4401 EOF
4402 if compile_prog "" "" ; then
4403     cpuid_h=yes
4404 fi
4405
4406 ##########################################
4407 # avx2 optimization requirement check
4408 #
4409 # There is no point enabling this if cpuid.h is not usable,
4410 # since we won't be able to select the new routines.
4411
4412 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
4413   cat > $TMPC << EOF
4414 #pragma GCC push_options
4415 #pragma GCC target("avx2")
4416 #include <cpuid.h>
4417 #include <immintrin.h>
4418 static int bar(void *a) {
4419     __m256i x = *(__m256i *)a;
4420     return _mm256_testz_si256(x, x);
4421 }
4422 int main(int argc, char *argv[]) { return bar(argv[0]); }
4423 EOF
4424   if compile_object "" ; then
4425     avx2_opt="yes"
4426   else
4427     avx2_opt="no"
4428   fi
4429 fi
4430
4431 ##########################################
4432 # avx512f optimization requirement check
4433 #
4434 # There is no point enabling this if cpuid.h is not usable,
4435 # since we won't be able to select the new routines.
4436 # by default, it is turned off.
4437 # if user explicitly want to enable it, check environment
4438
4439 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
4440   cat > $TMPC << EOF
4441 #pragma GCC push_options
4442 #pragma GCC target("avx512f")
4443 #include <cpuid.h>
4444 #include <immintrin.h>
4445 static int bar(void *a) {
4446     __m512i x = *(__m512i *)a;
4447     return _mm512_test_epi64_mask(x, x);
4448 }
4449 int main(int argc, char *argv[])
4450 {
4451         return bar(argv[0]);
4452 }
4453 EOF
4454   if ! compile_object "" ; then
4455     avx512f_opt="no"
4456   fi
4457 else
4458   avx512f_opt="no"
4459 fi
4460
4461 ########################################
4462 # check if __[u]int128_t is usable.
4463
4464 int128=no
4465 cat > $TMPC << EOF
4466 __int128_t a;
4467 __uint128_t b;
4468 int main (void) {
4469   a = a + b;
4470   b = a * b;
4471   a = a * a;
4472   return 0;
4473 }
4474 EOF
4475 if compile_prog "" "" ; then
4476     int128=yes
4477 fi
4478
4479 #########################################
4480 # See if 128-bit atomic operations are supported.
4481
4482 atomic128=no
4483 if test "$int128" = "yes"; then
4484   cat > $TMPC << EOF
4485 int main(void)
4486 {
4487   unsigned __int128 x = 0, y = 0;
4488   y = __atomic_load(&x, 0);
4489   __atomic_store(&x, y, 0);
4490   __atomic_compare_exchange(&x, &y, x, 0, 0, 0);
4491   return 0;
4492 }
4493 EOF
4494   if compile_prog "" "" ; then
4495     atomic128=yes
4496   fi
4497 fi
4498
4499 cmpxchg128=no
4500 if test "$int128" = yes && test "$atomic128" = no; then
4501   cat > $TMPC << EOF
4502 int main(void)
4503 {
4504   unsigned __int128 x = 0, y = 0;
4505   __sync_val_compare_and_swap_16(&x, y, x);
4506   return 0;
4507 }
4508 EOF
4509   if compile_prog "" "" ; then
4510     cmpxchg128=yes
4511   fi
4512 fi
4513
4514 #########################################
4515 # See if 64-bit atomic operations are supported.
4516 # Note that without __atomic builtins, we can only
4517 # assume atomic loads/stores max at pointer size.
4518
4519 cat > $TMPC << EOF
4520 #include <stdint.h>
4521 int main(void)
4522 {
4523   uint64_t x = 0, y = 0;
4524 #ifdef __ATOMIC_RELAXED
4525   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
4526   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
4527   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
4528   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
4529   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
4530 #else
4531   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
4532   __sync_lock_test_and_set(&x, y);
4533   __sync_val_compare_and_swap(&x, y, 0);
4534   __sync_fetch_and_add(&x, y);
4535 #endif
4536   return 0;
4537 }
4538 EOF
4539 if compile_prog "" "" ; then
4540   atomic64=yes
4541 fi
4542
4543 #########################################
4544 # See if --dynamic-list is supported by the linker
4545 ld_dynamic_list="no"
4546 if test "$static" = "no" ; then
4547     cat > $TMPTXT <<EOF
4548 {
4549   foo;
4550 };
4551 EOF
4552
4553     cat > $TMPC <<EOF
4554 #include <stdio.h>
4555 void foo(void);
4556
4557 void foo(void)
4558 {
4559   printf("foo\n");
4560 }
4561
4562 int main(void)
4563 {
4564   foo();
4565   return 0;
4566 }
4567 EOF
4568
4569     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
4570         ld_dynamic_list="yes"
4571     fi
4572 fi
4573
4574 #########################################
4575 # See if -exported_symbols_list is supported by the linker
4576
4577 ld_exported_symbols_list="no"
4578 if test "$static" = "no" ; then
4579     cat > $TMPTXT <<EOF
4580   _foo
4581 EOF
4582
4583     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
4584         ld_exported_symbols_list="yes"
4585     fi
4586 fi
4587
4588 if  test "$plugins" = "yes" &&
4589     test "$ld_dynamic_list" = "no" &&
4590     test "$ld_exported_symbols_list" = "no" ; then
4591   error_exit \
4592       "Plugin support requires dynamic linking and specifying a set of symbols " \
4593       "that are exported to plugins. Unfortunately your linker doesn't " \
4594       "support the flag (--dynamic-list or -exported_symbols_list) used " \
4595       "for this purpose. You can't build with --static."
4596 fi
4597
4598 ########################################
4599 # check if getauxval is available.
4600
4601 getauxval=no
4602 cat > $TMPC << EOF
4603 #include <sys/auxv.h>
4604 int main(void) {
4605   return getauxval(AT_HWCAP) == 0;
4606 }
4607 EOF
4608 if compile_prog "" "" ; then
4609     getauxval=yes
4610 fi
4611
4612 ########################################
4613 # check if ccache is interfering with
4614 # semantic analysis of macros
4615
4616 unset CCACHE_CPP2
4617 ccache_cpp2=no
4618 cat > $TMPC << EOF
4619 static const int Z = 1;
4620 #define fn() ({ Z; })
4621 #define TAUT(X) ((X) == Z)
4622 #define PAREN(X, Y) (X == Y)
4623 #define ID(X) (X)
4624 int main(int argc, char *argv[])
4625 {
4626     int x = 0, y = 0;
4627     x = ID(x);
4628     x = fn();
4629     fn();
4630     if (PAREN(x, y)) return 0;
4631     if (TAUT(Z)) return 0;
4632     return 0;
4633 }
4634 EOF
4635
4636 if ! compile_object "-Werror"; then
4637     ccache_cpp2=yes
4638 fi
4639
4640 #################################################
4641 # clang does not support glibc + FORTIFY_SOURCE.
4642
4643 if test "$fortify_source" != "no"; then
4644   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
4645     fortify_source="no";
4646   elif test -n "$cxx" && has $cxx &&
4647        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
4648     fortify_source="no";
4649   else
4650     fortify_source="yes"
4651   fi
4652 fi
4653
4654 ###############################################
4655 # Check if copy_file_range is provided by glibc
4656 have_copy_file_range=no
4657 cat > $TMPC << EOF
4658 #include <unistd.h>
4659 int main(void) {
4660   copy_file_range(0, NULL, 0, NULL, 0, 0);
4661   return 0;
4662 }
4663 EOF
4664 if compile_prog "" "" ; then
4665     have_copy_file_range=yes
4666 fi
4667
4668 ##########################################
4669 # check if struct fsxattr is available via linux/fs.h
4670
4671 have_fsxattr=no
4672 cat > $TMPC << EOF
4673 #include <linux/fs.h>
4674 struct fsxattr foo;
4675 int main(void) {
4676   return 0;
4677 }
4678 EOF
4679 if compile_prog "" "" ; then
4680     have_fsxattr=yes
4681 fi
4682
4683 ##########################################
4684 # check for usable membarrier system call
4685 if test "$membarrier" = "yes"; then
4686     have_membarrier=no
4687     if test "$mingw32" = "yes" ; then
4688         have_membarrier=yes
4689     elif test "$linux" = "yes" ; then
4690         cat > $TMPC << EOF
4691     #include <linux/membarrier.h>
4692     #include <sys/syscall.h>
4693     #include <unistd.h>
4694     #include <stdlib.h>
4695     int main(void) {
4696         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
4697         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
4698         exit(0);
4699     }
4700 EOF
4701         if compile_prog "" "" ; then
4702             have_membarrier=yes
4703         fi
4704     fi
4705     if test "$have_membarrier" = "no"; then
4706       feature_not_found "membarrier" "membarrier system call not available"
4707     fi
4708 else
4709     # Do not enable it by default even for Mingw32, because it doesn't
4710     # work on Wine.
4711     membarrier=no
4712 fi
4713
4714 ##########################################
4715 # check if rtnetlink.h exists and is useful
4716 have_rtnetlink=no
4717 cat > $TMPC << EOF
4718 #include <linux/rtnetlink.h>
4719 int main(void) {
4720   return IFLA_PROTO_DOWN;
4721 }
4722 EOF
4723 if compile_prog "" "" ; then
4724     have_rtnetlink=yes
4725 fi
4726
4727 ##########################################
4728 # check for usable AF_VSOCK environment
4729 have_af_vsock=no
4730 cat > $TMPC << EOF
4731 #include <errno.h>
4732 #include <sys/types.h>
4733 #include <sys/socket.h>
4734 #if !defined(AF_VSOCK)
4735 # error missing AF_VSOCK flag
4736 #endif
4737 #include <linux/vm_sockets.h>
4738 int main(void) {
4739     int sock, ret;
4740     struct sockaddr_vm svm;
4741     socklen_t len = sizeof(svm);
4742     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
4743     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
4744     if ((ret == -1) && (errno == ENOTCONN)) {
4745         return 0;
4746     }
4747     return -1;
4748 }
4749 EOF
4750 if compile_prog "" "" ; then
4751     have_af_vsock=yes
4752 fi
4753
4754 ##########################################
4755 # check for usable AF_ALG environment
4756 have_afalg=no
4757 cat > $TMPC << EOF
4758 #include <errno.h>
4759 #include <sys/types.h>
4760 #include <sys/socket.h>
4761 #include <linux/if_alg.h>
4762 int main(void) {
4763     int sock;
4764     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
4765     return sock;
4766 }
4767 EOF
4768 if compile_prog "" "" ; then
4769     have_afalg=yes
4770 fi
4771 if test "$crypto_afalg" = "yes"
4772 then
4773     if test "$have_afalg" != "yes"
4774     then
4775         error_exit "AF_ALG requested but could not be detected"
4776     fi
4777 fi
4778
4779
4780 #################################################
4781 # check for sysmacros.h
4782
4783 have_sysmacros=no
4784 cat > $TMPC << EOF
4785 #include <sys/sysmacros.h>
4786 int main(void) {
4787     return makedev(0, 0);
4788 }
4789 EOF
4790 if compile_prog "" "" ; then
4791     have_sysmacros=yes
4792 fi
4793
4794 ##########################################
4795 # check for utmpx.h, it is missing e.g. on OpenBSD
4796
4797 have_utmpx=no
4798 cat > $TMPC << EOF
4799 #include <utmpx.h>
4800 struct utmpx user_info;
4801 int main(void) {
4802     return 0;
4803 }
4804 EOF
4805 if compile_prog "" "" ; then
4806     have_utmpx=yes
4807 fi
4808
4809 ##########################################
4810 # check for getrandom()
4811
4812 have_getrandom=no
4813 cat > $TMPC << EOF
4814 #include <sys/random.h>
4815 int main(void) {
4816     return getrandom(0, 0, GRND_NONBLOCK);
4817 }
4818 EOF
4819 if compile_prog "" "" ; then
4820     have_getrandom=yes
4821 fi
4822
4823 ##########################################
4824 # checks for sanitizers
4825
4826 have_asan=no
4827 have_ubsan=no
4828 have_asan_iface_h=no
4829 have_asan_iface_fiber=no
4830
4831 if test "$sanitizers" = "yes" ; then
4832   write_c_skeleton
4833   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
4834       have_asan=yes
4835   fi
4836
4837   # we could use a simple skeleton for flags checks, but this also
4838   # detect the static linking issue of ubsan, see also:
4839   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
4840   cat > $TMPC << EOF
4841 #include <stdlib.h>
4842 int main(void) {
4843     void *tmp = malloc(10);
4844     if (tmp != NULL) {
4845         return *(int *)(tmp + 2);
4846     }
4847     return 1;
4848 }
4849 EOF
4850   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
4851       have_ubsan=yes
4852   fi
4853
4854   if check_include "sanitizer/asan_interface.h" ; then
4855       have_asan_iface_h=yes
4856   fi
4857
4858   cat > $TMPC << EOF
4859 #include <sanitizer/asan_interface.h>
4860 int main(void) {
4861   __sanitizer_start_switch_fiber(0, 0, 0);
4862   return 0;
4863 }
4864 EOF
4865   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
4866       have_asan_iface_fiber=yes
4867   fi
4868 fi
4869
4870 ##########################################
4871 # checks for fuzzer
4872 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
4873   write_c_fuzzer_skeleton
4874   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
4875     have_fuzzer=yes
4876   else
4877     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
4878     exit 1
4879   fi
4880 fi
4881
4882 # Thread sanitizer is, for now, much noisier than the other sanitizers;
4883 # keep it separate until that is not the case.
4884 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
4885   error_exit "TSAN is not supported with other sanitiziers."
4886 fi
4887 have_tsan=no
4888 have_tsan_iface_fiber=no
4889 if test "$tsan" = "yes" ; then
4890   write_c_skeleton
4891   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
4892       have_tsan=yes
4893   fi
4894   cat > $TMPC << EOF
4895 #include <sanitizer/tsan_interface.h>
4896 int main(void) {
4897   __tsan_create_fiber(0);
4898   return 0;
4899 }
4900 EOF
4901   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
4902       have_tsan_iface_fiber=yes
4903   fi
4904 fi
4905
4906 ##########################################
4907 # check for slirp
4908
4909 case "$slirp" in
4910   auto | enabled | internal)
4911     # Simpler to always update submodule, even if not needed.
4912     git_submodules="${git_submodules} slirp"
4913     ;;
4914 esac
4915
4916 # Check for slirp smbd dupport
4917 : ${smbd=${SMBD-/usr/sbin/smbd}}
4918 if test "$slirp_smbd" != "no" ; then
4919   if test "$mingw32" = "yes" ; then
4920     if test "$slirp_smbd" = "yes" ; then
4921       error_exit "Host smbd not supported on this platform."
4922     fi
4923     slirp_smbd=no
4924   else
4925     slirp_smbd=yes
4926   fi
4927 fi
4928
4929 ##########################################
4930 # check for usable __NR_keyctl syscall
4931
4932 if test "$linux" = "yes" ; then
4933
4934     have_keyring=no
4935     cat > $TMPC << EOF
4936 #include <errno.h>
4937 #include <asm/unistd.h>
4938 #include <linux/keyctl.h>
4939 #include <unistd.h>
4940 int main(void) {
4941     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
4942 }
4943 EOF
4944     if compile_prog "" "" ; then
4945         have_keyring=yes
4946     fi
4947 fi
4948 if test "$secret_keyring" != "no"
4949 then
4950     if test "$have_keyring" = "yes"
4951     then
4952         secret_keyring=yes
4953     else
4954         if test "$secret_keyring" = "yes"
4955         then
4956             error_exit "syscall __NR_keyctl requested, \
4957 but not implemented on your system"
4958         else
4959             secret_keyring=no
4960         fi
4961     fi
4962 fi
4963
4964 ##########################################
4965 # End of CC checks
4966 # After here, no more $cc or $ld runs
4967
4968 write_c_skeleton
4969
4970 if test "$gcov" = "yes" ; then
4971   :
4972 elif test "$fortify_source" = "yes" ; then
4973   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
4974   debug=no
4975 fi
4976
4977 case "$ARCH" in
4978 alpha)
4979   # Ensure there's only a single GP
4980   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
4981 ;;
4982 esac
4983
4984 if test "$gprof" = "yes" ; then
4985   QEMU_CFLAGS="-p $QEMU_CFLAGS"
4986   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
4987 fi
4988
4989 if test "$have_asan" = "yes"; then
4990   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
4991   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
4992   if test "$have_asan_iface_h" = "no" ; then
4993       echo "ASAN build enabled, but ASAN header missing." \
4994            "Without code annotation, the report may be inferior."
4995   elif test "$have_asan_iface_fiber" = "no" ; then
4996       echo "ASAN build enabled, but ASAN header is too old." \
4997            "Without code annotation, the report may be inferior."
4998   fi
4999 fi
5000 if test "$have_tsan" = "yes" ; then
5001   if test "$have_tsan_iface_fiber" = "yes" ; then
5002     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5003     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5004   else
5005     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5006   fi
5007 elif test "$tsan" = "yes" ; then
5008   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5009 fi
5010 if test "$have_ubsan" = "yes"; then
5011   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5012   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5013 fi
5014
5015 ##########################################
5016
5017 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5018 if test "$solaris" = "no" && test "$tsan" = "no"; then
5019     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5020         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5021     fi
5022 fi
5023
5024 # Use ASLR, no-SEH and DEP if available
5025 if test "$mingw32" = "yes" ; then
5026     flags="--no-seh --nxcompat"
5027
5028     # Disable ASLR for debug builds to allow debugging with gdb
5029     if test "$debug" = "no" ; then
5030         flags="--dynamicbase $flags"
5031     fi
5032
5033     for flag in $flags; do
5034         if ld_has $flag ; then
5035             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5036         fi
5037     done
5038 fi
5039
5040 # We can only support ivshmem if we have eventfd
5041 if [ "$eventfd" = "yes" ]; then
5042   ivshmem=yes
5043 fi
5044
5045 # Probe for guest agent support/options
5046
5047 if [ "$guest_agent" != "no" ]; then
5048   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5049       guest_agent=no
5050   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5051       guest_agent=yes
5052   elif [ "$guest_agent" != yes ]; then
5053       guest_agent=no
5054   else
5055       error_exit "Guest agent is not supported on this platform"
5056   fi
5057 fi
5058
5059 # Guest agent Windows MSI package
5060
5061 if test "$QEMU_GA_MANUFACTURER" = ""; then
5062   QEMU_GA_MANUFACTURER=QEMU
5063 fi
5064 if test "$QEMU_GA_DISTRO" = ""; then
5065   QEMU_GA_DISTRO=Linux
5066 fi
5067 if test "$QEMU_GA_VERSION" = ""; then
5068     QEMU_GA_VERSION=$(cat $source_path/VERSION)
5069 fi
5070
5071 QEMU_GA_MSI_MINGW_DLL_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
5072
5073 # Mac OS X ships with a broken assembler
5074 roms=
5075 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5076         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5077         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5078     # Different host OS linkers have different ideas about the name of the ELF
5079     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5080     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5081     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5082         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5083             ld_i386_emulation="$emu"
5084             roms="optionrom"
5085             break
5086         fi
5087     done
5088 fi
5089
5090 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5091 # or -march=z10 (which is the lowest architecture level that Clang supports)
5092 if test "$cpu" = "s390x" ; then
5093   write_c_skeleton
5094   compile_prog "-march=z900" ""
5095   has_z900=$?
5096   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
5097     if [ $has_z900 != 0 ]; then
5098       echo "WARNING: Your compiler does not support the z900!"
5099       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
5100     fi
5101     roms="$roms s390-ccw"
5102     # SLOF is required for building the s390-ccw firmware on s390x,
5103     # since it is using the libnet code from SLOF for network booting.
5104     git_submodules="${git_submodules} roms/SLOF"
5105   fi
5106 fi
5107
5108 # Check that the C++ compiler exists and works with the C compiler.
5109 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5110 if has $cxx; then
5111     cat > $TMPC <<EOF
5112 int c_function(void);
5113 int main(void) { return c_function(); }
5114 EOF
5115
5116     compile_object
5117
5118     cat > $TMPCXX <<EOF
5119 extern "C" {
5120    int c_function(void);
5121 }
5122 int c_function(void) { return 42; }
5123 EOF
5124
5125     update_cxxflags
5126
5127     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5128         # C++ compiler $cxx works ok with C compiler $cc
5129         :
5130     else
5131         echo "C++ compiler $cxx does not work with C compiler $cc"
5132         echo "Disabling C++ specific optional code"
5133         cxx=
5134     fi
5135 else
5136     echo "No C++ compiler available; disabling C++ specific optional code"
5137     cxx=
5138 fi
5139
5140 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
5141     exit 1
5142 fi
5143
5144 config_host_mak="config-host.mak"
5145
5146 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5147 echo >> $config_host_mak
5148
5149 echo all: >> $config_host_mak
5150 echo "GIT=$git" >> $config_host_mak
5151 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5152 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
5153
5154 echo "ARCH=$ARCH" >> $config_host_mak
5155
5156 if test "$debug_tcg" = "yes" ; then
5157   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5158 fi
5159 if test "$strip_opt" = "yes" ; then
5160   echo "STRIP=${strip}" >> $config_host_mak
5161 fi
5162 if test "$bigendian" = "yes" ; then
5163   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5164 fi
5165 if test "$mingw32" = "yes" ; then
5166   echo "CONFIG_WIN32=y" >> $config_host_mak
5167   if test "$guest_agent_with_vss" = "yes" ; then
5168     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5169     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5170     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5171   fi
5172   if test "$guest_agent_ntddscsi" = "yes" ; then
5173     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5174   fi
5175   echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5176   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5177   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5178   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5179 else
5180   echo "CONFIG_POSIX=y" >> $config_host_mak
5181 fi
5182
5183 if test "$linux" = "yes" ; then
5184   echo "CONFIG_LINUX=y" >> $config_host_mak
5185 fi
5186
5187 if test "$darwin" = "yes" ; then
5188   echo "CONFIG_DARWIN=y" >> $config_host_mak
5189 fi
5190
5191 if test "$solaris" = "yes" ; then
5192   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5193 fi
5194 if test "$haiku" = "yes" ; then
5195   echo "CONFIG_HAIKU=y" >> $config_host_mak
5196 fi
5197 if test "$static" = "yes" ; then
5198   echo "CONFIG_STATIC=y" >> $config_host_mak
5199 fi
5200 if test "$profiler" = "yes" ; then
5201   echo "CONFIG_PROFILER=y" >> $config_host_mak
5202 fi
5203 if test "$want_tools" = "yes" ; then
5204   echo "CONFIG_TOOLS=y" >> $config_host_mak
5205 fi
5206 if test "$guest_agent" = "yes" ; then
5207   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5208 fi
5209 if test "$slirp_smbd" = "yes" ; then
5210   echo "CONFIG_SLIRP_SMBD=y" >> $config_host_mak
5211   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5212 fi
5213 if test "$vde" = "yes" ; then
5214   echo "CONFIG_VDE=y" >> $config_host_mak
5215   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5216 fi
5217 if test "$netmap" = "yes" ; then
5218   echo "CONFIG_NETMAP=y" >> $config_host_mak
5219 fi
5220 if test "$l2tpv3" = "yes" ; then
5221   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5222 fi
5223 if test "$gprof" = "yes" ; then
5224   echo "CONFIG_GPROF=y" >> $config_host_mak
5225 fi
5226 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5227 for drv in $audio_drv_list; do
5228     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5229     echo "$def=y" >> $config_host_mak
5230 done
5231 if test "$alsa" = "yes" ; then
5232     echo "CONFIG_ALSA=y" >> $config_host_mak
5233 fi
5234 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
5235 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
5236 if test "$libpulse" = "yes" ; then
5237     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
5238 fi
5239 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
5240 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
5241 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
5242 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
5243 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
5244 if test "$libjack" = "yes" ; then
5245     echo "CONFIG_LIBJACK=y" >> $config_host_mak
5246 fi
5247 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
5248 if test "$audio_win_int" = "yes" ; then
5249   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
5250 fi
5251 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
5252 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
5253 if test "$xfs" = "yes" ; then
5254   echo "CONFIG_XFS=y" >> $config_host_mak
5255 fi
5256 qemu_version=$(head $source_path/VERSION)
5257 echo "PKGVERSION=$pkgversion" >>$config_host_mak
5258 echo "SRC_PATH=$source_path" >> $config_host_mak
5259 echo "TARGET_DIRS=$target_list" >> $config_host_mak
5260 if test "$modules" = "yes"; then
5261   # $shacmd can generate a hash started with digit, which the compiler doesn't
5262   # like as an symbol. So prefix it with an underscore
5263   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
5264   echo "CONFIG_MODULES=y" >> $config_host_mak
5265 fi
5266 if test "$module_upgrades" = "yes"; then
5267   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
5268 fi
5269 if test "$pipe2" = "yes" ; then
5270   echo "CONFIG_PIPE2=y" >> $config_host_mak
5271 fi
5272 if test "$accept4" = "yes" ; then
5273   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
5274 fi
5275 if test "$splice" = "yes" ; then
5276   echo "CONFIG_SPLICE=y" >> $config_host_mak
5277 fi
5278 if test "$eventfd" = "yes" ; then
5279   echo "CONFIG_EVENTFD=y" >> $config_host_mak
5280 fi
5281 if test "$memfd" = "yes" ; then
5282   echo "CONFIG_MEMFD=y" >> $config_host_mak
5283 fi
5284 if test "$have_usbfs" = "yes" ; then
5285   echo "CONFIG_USBFS=y" >> $config_host_mak
5286 fi
5287 if test "$fallocate" = "yes" ; then
5288   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
5289 fi
5290 if test "$fallocate_punch_hole" = "yes" ; then
5291   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
5292 fi
5293 if test "$fallocate_zero_range" = "yes" ; then
5294   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
5295 fi
5296 if test "$posix_fallocate" = "yes" ; then
5297   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
5298 fi
5299 if test "$sync_file_range" = "yes" ; then
5300   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
5301 fi
5302 if test "$fiemap" = "yes" ; then
5303   echo "CONFIG_FIEMAP=y" >> $config_host_mak
5304 fi
5305 if test "$dup3" = "yes" ; then
5306   echo "CONFIG_DUP3=y" >> $config_host_mak
5307 fi
5308 if test "$ppoll" = "yes" ; then
5309   echo "CONFIG_PPOLL=y" >> $config_host_mak
5310 fi
5311 if test "$prctl_pr_set_timerslack" = "yes" ; then
5312   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
5313 fi
5314 if test "$epoll" = "yes" ; then
5315   echo "CONFIG_EPOLL=y" >> $config_host_mak
5316 fi
5317 if test "$epoll_create1" = "yes" ; then
5318   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
5319 fi
5320 if test "$sendfile" = "yes" ; then
5321   echo "CONFIG_SENDFILE=y" >> $config_host_mak
5322 fi
5323 if test "$timerfd" = "yes" ; then
5324   echo "CONFIG_TIMERFD=y" >> $config_host_mak
5325 fi
5326 if test "$setns" = "yes" ; then
5327   echo "CONFIG_SETNS=y" >> $config_host_mak
5328 fi
5329 if test "$clock_adjtime" = "yes" ; then
5330   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
5331 fi
5332 if test "$syncfs" = "yes" ; then
5333   echo "CONFIG_SYNCFS=y" >> $config_host_mak
5334 fi
5335 if test "$inotify" = "yes" ; then
5336   echo "CONFIG_INOTIFY=y" >> $config_host_mak
5337 fi
5338 if test "$inotify1" = "yes" ; then
5339   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
5340 fi
5341 if test "$sem_timedwait" = "yes" ; then
5342   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
5343 fi
5344 if test "$strchrnul" = "yes" ; then
5345   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
5346 fi
5347 if test "$st_atim" = "yes" ; then
5348   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
5349 fi
5350 if test "$sigev_notify_thread_id" = "yes" ; then
5351   echo "HAVE_SIGEV_NOTIFY_THREAD_ID=y" >> $config_host_mak
5352 fi
5353 if test "$byteswap_h" = "yes" ; then
5354   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
5355 fi
5356 if test "$bswap_h" = "yes" ; then
5357   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
5358 fi
5359 if test "$gio" = "yes" ; then
5360     echo "CONFIG_GIO=y" >> $config_host_mak
5361     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
5362     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
5363 fi
5364 if test "$gdbus_codegen" != "" ; then
5365     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
5366 fi
5367 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
5368 if test "$have_broken_size_max" = "yes" ; then
5369     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
5370 fi
5371 if test "$have_openpty" = "yes" ; then
5372     echo "HAVE_OPENPTY=y" >> $config_host_mak
5373 fi
5374
5375 # Work around a system header bug with some kernel/XFS header
5376 # versions where they both try to define 'struct fsxattr':
5377 # xfs headers will not try to redefine structs from linux headers
5378 # if this macro is set.
5379 if test "$have_fsxattr" = "yes" ; then
5380     echo "HAVE_FSXATTR=y" >> $config_host_mak
5381 fi
5382 if test "$have_copy_file_range" = "yes" ; then
5383     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
5384 fi
5385 if test "$xen" = "enabled" ; then
5386   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
5387   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
5388   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
5389   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
5390 fi
5391 if test "$linux_aio" = "yes" ; then
5392   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
5393 fi
5394 if test "$vhost_scsi" = "yes" ; then
5395   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
5396 fi
5397 if test "$vhost_net" = "yes" ; then
5398   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
5399 fi
5400 if test "$vhost_net_user" = "yes" ; then
5401   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
5402 fi
5403 if test "$vhost_net_vdpa" = "yes" ; then
5404   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
5405 fi
5406 if test "$vhost_crypto" = "yes" ; then
5407   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
5408 fi
5409 if test "$vhost_vsock" = "yes" ; then
5410   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
5411   if test "$vhost_user" = "yes" ; then
5412     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
5413   fi
5414 fi
5415 if test "$vhost_kernel" = "yes" ; then
5416   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
5417 fi
5418 if test "$vhost_user" = "yes" ; then
5419   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
5420 fi
5421 if test "$vhost_vdpa" = "yes" ; then
5422   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
5423 fi
5424 if test "$vhost_user_fs" = "yes" ; then
5425   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
5426 fi
5427 if test "$iovec" = "yes" ; then
5428   echo "CONFIG_IOVEC=y" >> $config_host_mak
5429 fi
5430 if test "$membarrier" = "yes" ; then
5431   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
5432 fi
5433 if test "$signalfd" = "yes" ; then
5434   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
5435 fi
5436 if test "$optreset" = "yes" ; then
5437   echo "HAVE_OPTRESET=y" >> $config_host_mak
5438 fi
5439 if test "$tcg" = "enabled" -a "$tcg_interpreter" = "true" ; then
5440   echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
5441 fi
5442 if test "$fdatasync" = "yes" ; then
5443   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
5444 fi
5445 if test "$madvise" = "yes" ; then
5446   echo "CONFIG_MADVISE=y" >> $config_host_mak
5447 fi
5448 if test "$posix_madvise" = "yes" ; then
5449   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
5450 fi
5451 if test "$posix_memalign" = "yes" ; then
5452   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
5453 fi
5454
5455 if test "$spice_protocol" = "yes" ; then
5456   echo "CONFIG_SPICE_PROTOCOL=y" >> $config_host_mak
5457   echo "SPICE_PROTOCOL_CFLAGS=$spice_protocol_cflags" >> $config_host_mak
5458 fi
5459 if test "$spice" = "yes" ; then
5460   echo "CONFIG_SPICE=y" >> $config_host_mak
5461   echo "SPICE_CFLAGS=$spice_cflags $spice_protocol_cflags" >> $config_host_mak
5462   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
5463 fi
5464
5465 if test "$opengl" = "yes" ; then
5466   echo "CONFIG_OPENGL=y" >> $config_host_mak
5467   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
5468   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
5469 fi
5470
5471 if test "$gbm" = "yes" ; then
5472     echo "CONFIG_GBM=y" >> $config_host_mak
5473     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
5474     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
5475 fi
5476
5477
5478 if test "$avx2_opt" = "yes" ; then
5479   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
5480 fi
5481
5482 if test "$avx512f_opt" = "yes" ; then
5483   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
5484 fi
5485
5486 # XXX: suppress that
5487 if [ "$bsd" = "yes" ] ; then
5488   echo "CONFIG_BSD=y" >> $config_host_mak
5489 fi
5490
5491 if test "$qom_cast_debug" = "yes" ; then
5492   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
5493 fi
5494
5495 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
5496 if test "$coroutine_pool" = "yes" ; then
5497   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
5498 else
5499   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
5500 fi
5501
5502 if test "$debug_stack_usage" = "yes" ; then
5503   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
5504 fi
5505
5506 if test "$crypto_afalg" = "yes" ; then
5507   echo "CONFIG_AF_ALG=y" >> $config_host_mak
5508 fi
5509
5510 if test "$open_by_handle_at" = "yes" ; then
5511   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
5512 fi
5513
5514 if test "$linux_magic_h" = "yes" ; then
5515   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
5516 fi
5517
5518 if test "$valgrind_h" = "yes" ; then
5519   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
5520 fi
5521
5522 if test "$have_asan_iface_fiber" = "yes" ; then
5523     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
5524 fi
5525
5526 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
5527     echo "CONFIG_TSAN=y" >> $config_host_mak
5528 fi
5529
5530 if test "$has_environ" = "yes" ; then
5531   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
5532 fi
5533
5534 if test "$cpuid_h" = "yes" ; then
5535   echo "CONFIG_CPUID_H=y" >> $config_host_mak
5536 fi
5537
5538 if test "$int128" = "yes" ; then
5539   echo "CONFIG_INT128=y" >> $config_host_mak
5540 fi
5541
5542 if test "$atomic128" = "yes" ; then
5543   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
5544 fi
5545
5546 if test "$cmpxchg128" = "yes" ; then
5547   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
5548 fi
5549
5550 if test "$atomic64" = "yes" ; then
5551   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
5552 fi
5553
5554 if test "$getauxval" = "yes" ; then
5555   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
5556 fi
5557
5558 if test "$libssh" = "yes" ; then
5559   echo "CONFIG_LIBSSH=y" >> $config_host_mak
5560   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
5561   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
5562 fi
5563
5564 if test "$live_block_migration" = "yes" ; then
5565   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
5566 fi
5567
5568 if test "$tpm" = "yes"; then
5569   echo 'CONFIG_TPM=y' >> $config_host_mak
5570 fi
5571
5572 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
5573 if have_backend "nop"; then
5574   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
5575 fi
5576 if have_backend "simple"; then
5577   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
5578   # Set the appropriate trace file.
5579   trace_file="\"$trace_file-\" FMT_pid"
5580 fi
5581 if have_backend "log"; then
5582   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
5583 fi
5584 if have_backend "ust"; then
5585   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
5586   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
5587   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
5588 fi
5589 if have_backend "dtrace"; then
5590   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
5591   if test "$trace_backend_stap" = "yes" ; then
5592     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
5593   fi
5594 fi
5595 if have_backend "ftrace"; then
5596   if test "$linux" = "yes" ; then
5597     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
5598   else
5599     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
5600   fi
5601 fi
5602 if have_backend "syslog"; then
5603   if test "$posix_syslog" = "yes" ; then
5604     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
5605   else
5606     feature_not_found "syslog(trace backend)" "syslog not available"
5607   fi
5608 fi
5609 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
5610
5611 if test "$rdma" = "yes" ; then
5612   echo "CONFIG_RDMA=y" >> $config_host_mak
5613   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
5614 fi
5615
5616 if test "$pvrdma" = "yes" ; then
5617   echo "CONFIG_PVRDMA=y" >> $config_host_mak
5618 fi
5619
5620 if test "$have_rtnetlink" = "yes" ; then
5621   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
5622 fi
5623
5624 if test "$replication" = "yes" ; then
5625   echo "CONFIG_REPLICATION=y" >> $config_host_mak
5626 fi
5627
5628 if test "$have_af_vsock" = "yes" ; then
5629   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
5630 fi
5631
5632 if test "$have_sysmacros" = "yes" ; then
5633   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
5634 fi
5635
5636 if test "$have_utmpx" = "yes" ; then
5637   echo "HAVE_UTMPX=y" >> $config_host_mak
5638 fi
5639 if test "$have_getrandom" = "yes" ; then
5640   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
5641 fi
5642 if test "$ivshmem" = "yes" ; then
5643   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
5644 fi
5645 if test "$debug_mutex" = "yes" ; then
5646   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
5647 fi
5648
5649 # Hold two types of flag:
5650 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
5651 #                                     a thread we have a handle to
5652 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
5653 #                                     platform
5654 if test "$pthread_setname_np_w_tid" = "yes" ; then
5655   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
5656   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
5657 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
5658   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
5659   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
5660 fi
5661
5662 if test "$libpmem" = "yes" ; then
5663   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
5664   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
5665   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
5666 fi
5667
5668 if test "$bochs" = "yes" ; then
5669   echo "CONFIG_BOCHS=y" >> $config_host_mak
5670 fi
5671 if test "$cloop" = "yes" ; then
5672   echo "CONFIG_CLOOP=y" >> $config_host_mak
5673 fi
5674 if test "$dmg" = "yes" ; then
5675   echo "CONFIG_DMG=y" >> $config_host_mak
5676 fi
5677 if test "$qcow1" = "yes" ; then
5678   echo "CONFIG_QCOW1=y" >> $config_host_mak
5679 fi
5680 if test "$vdi" = "yes" ; then
5681   echo "CONFIG_VDI=y" >> $config_host_mak
5682 fi
5683 if test "$vvfat" = "yes" ; then
5684   echo "CONFIG_VVFAT=y" >> $config_host_mak
5685 fi
5686 if test "$qed" = "yes" ; then
5687   echo "CONFIG_QED=y" >> $config_host_mak
5688 fi
5689 if test "$parallels" = "yes" ; then
5690   echo "CONFIG_PARALLELS=y" >> $config_host_mak
5691 fi
5692 if test "$have_mlockall" = "yes" ; then
5693   echo "HAVE_MLOCKALL=y" >> $config_host_mak
5694 fi
5695 if test "$fuzzing" = "yes" ; then
5696   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
5697   # needed CFLAGS have already been provided
5698   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
5699     # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
5700     # compiled code.
5701     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
5702     # To build non-fuzzer binaries with --enable-fuzzing, link everything with
5703     # fsanitize=fuzzer-no-link. Otherwise, the linker will be unable to bind
5704     # the fuzzer-related callbacks added by instrumentation.
5705     QEMU_LDFLAGS="$QEMU_LDFLAGS -fsanitize=fuzzer-no-link"
5706     # For the actual fuzzer binaries, we need to link against the libfuzzer
5707     # library. Provide the flags for doing this in FUZZ_EXE_LDFLAGS. The meson
5708     # rule for the fuzzer adds these to the link_args. They need to be
5709     # configurable, to support OSS-Fuzz
5710     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
5711   else
5712     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
5713   fi
5714 fi
5715
5716 if test "$plugins" = "yes" ; then
5717     echo "CONFIG_PLUGIN=y" >> $config_host_mak
5718     # Copy the export object list to the build dir
5719     if test "$ld_dynamic_list" = "yes" ; then
5720         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
5721         ld_symbols=qemu-plugins-ld.symbols
5722         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
5723     elif test "$ld_exported_symbols_list" = "yes" ; then
5724         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
5725         ld64_symbols=qemu-plugins-ld64.symbols
5726         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
5727         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
5728             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
5729     else
5730         error_exit \
5731             "If \$plugins=yes, either \$ld_dynamic_list or " \
5732             "\$ld_exported_symbols_list should have been set to 'yes'."
5733     fi
5734 fi
5735
5736 if test -n "$gdb_bin"; then
5737     gdb_version=$($gdb_bin --version | head -n 1)
5738     if version_ge ${gdb_version##* } 9.1; then
5739         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
5740     fi
5741 fi
5742
5743 if test "$secret_keyring" = "yes" ; then
5744   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
5745 fi
5746
5747 echo "ROMS=$roms" >> $config_host_mak
5748 echo "MAKE=$make" >> $config_host_mak
5749 echo "PYTHON=$python" >> $config_host_mak
5750 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
5751 echo "MESON=$meson" >> $config_host_mak
5752 echo "NINJA=$ninja" >> $config_host_mak
5753 echo "CC=$cc" >> $config_host_mak
5754 echo "HOST_CC=$host_cc" >> $config_host_mak
5755 if $iasl -h > /dev/null 2>&1; then
5756   echo "CONFIG_IASL=$iasl" >> $config_host_mak
5757 fi
5758 echo "CXX=$cxx" >> $config_host_mak
5759 echo "OBJCC=$objcc" >> $config_host_mak
5760 echo "AR=$ar" >> $config_host_mak
5761 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
5762 echo "AS=$as" >> $config_host_mak
5763 echo "CCAS=$ccas" >> $config_host_mak
5764 echo "CPP=$cpp" >> $config_host_mak
5765 echo "OBJCOPY=$objcopy" >> $config_host_mak
5766 echo "LD=$ld" >> $config_host_mak
5767 echo "RANLIB=$ranlib" >> $config_host_mak
5768 echo "NM=$nm" >> $config_host_mak
5769 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
5770 echo "WINDRES=$windres" >> $config_host_mak
5771 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
5772 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
5773 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
5774 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
5775 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
5776 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
5777 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
5778 echo "EXESUF=$EXESUF" >> $config_host_mak
5779 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
5780 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
5781 if test "$gcov" = "yes" ; then
5782   echo "CONFIG_GCOV=y" >> $config_host_mak
5783 fi
5784
5785 if test "$fuzzing" != "no"; then
5786     echo "CONFIG_FUZZ=y" >> $config_host_mak
5787 fi
5788 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
5789
5790 if test "$rng_none" = "yes"; then
5791   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
5792 fi
5793
5794 # use included Linux headers
5795 if test "$linux" = "yes" ; then
5796   mkdir -p linux-headers
5797   case "$cpu" in
5798   i386|x86_64|x32)
5799     linux_arch=x86
5800     ;;
5801   ppc|ppc64|ppc64le)
5802     linux_arch=powerpc
5803     ;;
5804   s390x)
5805     linux_arch=s390
5806     ;;
5807   aarch64)
5808     linux_arch=arm64
5809     ;;
5810   mips64)
5811     linux_arch=mips
5812     ;;
5813   *)
5814     # For most CPUs the kernel architecture name and QEMU CPU name match.
5815     linux_arch="$cpu"
5816     ;;
5817   esac
5818     # For non-KVM architectures we will not have asm headers
5819     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
5820       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
5821     fi
5822 fi
5823
5824 for target in $target_list; do
5825     target_dir="$target"
5826     target_name=$(echo $target | cut -d '-' -f 1)
5827     mkdir -p $target_dir
5828     case $target in
5829         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
5830         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
5831     esac
5832 done
5833
5834 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
5835 if test "$default_targets" = "yes"; then
5836   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
5837 fi
5838
5839 if test "$numa" = "yes"; then
5840   echo "CONFIG_NUMA=y" >> $config_host_mak
5841   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
5842 fi
5843
5844 if test "$ccache_cpp2" = "yes"; then
5845   echo "export CCACHE_CPP2=y" >> $config_host_mak
5846 fi
5847
5848 if test "$safe_stack" = "yes"; then
5849   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
5850 fi
5851
5852 # If we're using a separate build tree, set it up now.
5853 # DIRS are directories which we simply mkdir in the build tree;
5854 # LINKS are things to symlink back into the source tree
5855 # (these can be both files and directories).
5856 # Caution: do not add files or directories here using wildcards. This
5857 # will result in problems later if a new file matching the wildcard is
5858 # added to the source tree -- nothing will cause configure to be rerun
5859 # so the build tree will be missing the link back to the new file, and
5860 # tests might fail. Prefer to keep the relevant files in their own
5861 # directory and symlink the directory instead.
5862 # UNLINK is used to remove symlinks from older development versions
5863 # that might get into the way when doing "git update" without doing
5864 # a "make distclean" in between.
5865 DIRS="tests tests/tcg tests/qapi-schema tests/qtest/libqos"
5866 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
5867 DIRS="$DIRS docs docs/interop fsdev scsi"
5868 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
5869 DIRS="$DIRS roms/seabios"
5870 DIRS="$DIRS contrib/plugins/"
5871 LINKS="Makefile"
5872 LINKS="$LINKS tests/tcg/Makefile.target"
5873 LINKS="$LINKS pc-bios/optionrom/Makefile"
5874 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
5875 LINKS="$LINKS roms/seabios/Makefile"
5876 LINKS="$LINKS pc-bios/qemu-icon.bmp"
5877 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
5878 LINKS="$LINKS tests/acceptance tests/data"
5879 LINKS="$LINKS tests/qemu-iotests/check"
5880 LINKS="$LINKS python"
5881 LINKS="$LINKS contrib/plugins/Makefile "
5882 UNLINK="pc-bios/keymaps"
5883 for bios_file in \
5884     $source_path/pc-bios/*.bin \
5885     $source_path/pc-bios/*.elf \
5886     $source_path/pc-bios/*.lid \
5887     $source_path/pc-bios/*.rom \
5888     $source_path/pc-bios/*.dtb \
5889     $source_path/pc-bios/*.img \
5890     $source_path/pc-bios/openbios-* \
5891     $source_path/pc-bios/u-boot.* \
5892     $source_path/pc-bios/edk2-*.fd.bz2 \
5893     $source_path/pc-bios/palcode-*
5894 do
5895     LINKS="$LINKS pc-bios/$(basename $bios_file)"
5896 done
5897 mkdir -p $DIRS
5898 for f in $LINKS ; do
5899     if [ -e "$source_path/$f" ]; then
5900         symlink "$source_path/$f" "$f"
5901     fi
5902 done
5903 for f in $UNLINK ; do
5904     if [ -L "$f" ]; then
5905         rm -f "$f"
5906     fi
5907 done
5908
5909 (for i in $cross_cc_vars; do
5910   export $i
5911 done
5912 export target_list source_path use_containers ARCH
5913 $source_path/tests/tcg/configure.sh)
5914
5915 # temporary config to build submodules
5916 for rom in seabios; do
5917     config_mak=roms/$rom/config.mak
5918     echo "# Automatically generated by configure - do not modify" > $config_mak
5919     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
5920     echo "AS=$as" >> $config_mak
5921     echo "CCAS=$ccas" >> $config_mak
5922     echo "CC=$cc" >> $config_mak
5923     echo "BCC=bcc" >> $config_mak
5924     echo "CPP=$cpp" >> $config_mak
5925     echo "OBJCOPY=objcopy" >> $config_mak
5926     echo "IASL=$iasl" >> $config_mak
5927     echo "LD=$ld" >> $config_mak
5928     echo "RANLIB=$ranlib" >> $config_mak
5929 done
5930
5931 if test "$skip_meson" = no; then
5932   cross="config-meson.cross.new"
5933   meson_quote() {
5934     echo "'$(echo $* | sed "s/ /','/g")'"
5935   }
5936
5937   echo "# Automatically generated by configure - do not modify" > $cross
5938   echo "[properties]" >> $cross
5939   test -z "$cxx" && echo "link_language = 'c'" >> $cross
5940   echo "[built-in options]" >> $cross
5941   echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
5942   echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
5943   echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
5944   echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
5945   echo "[binaries]" >> $cross
5946   echo "c = [$(meson_quote $cc)]" >> $cross
5947   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
5948   test -n "$objcc" && echo "objc = [$(meson_quote $objcc)]" >> $cross
5949   echo "ar = [$(meson_quote $ar)]" >> $cross
5950   echo "nm = [$(meson_quote $nm)]" >> $cross
5951   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
5952   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
5953   if has $sdl2_config; then
5954     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
5955   fi
5956   echo "strip = [$(meson_quote $strip)]" >> $cross
5957   echo "windres = [$(meson_quote $windres)]" >> $cross
5958   if test "$cross_compile" = "yes"; then
5959     cross_arg="--cross-file config-meson.cross"
5960     echo "[host_machine]" >> $cross
5961     if test "$mingw32" = "yes" ; then
5962         echo "system = 'windows'" >> $cross
5963     fi
5964     if test "$linux" = "yes" ; then
5965         echo "system = 'linux'" >> $cross
5966     fi
5967     if test "$darwin" = "yes" ; then
5968         echo "system = 'darwin'" >> $cross
5969     fi
5970     case "$ARCH" in
5971         i386)
5972             echo "cpu_family = 'x86'" >> $cross
5973             ;;
5974         x86_64|x32)
5975             echo "cpu_family = 'x86_64'" >> $cross
5976             ;;
5977         ppc64le)
5978             echo "cpu_family = 'ppc64'" >> $cross
5979             ;;
5980         *)
5981             echo "cpu_family = '$ARCH'" >> $cross
5982             ;;
5983     esac
5984     echo "cpu = '$cpu'" >> $cross
5985     if test "$bigendian" = "yes" ; then
5986         echo "endian = 'big'" >> $cross
5987     else
5988         echo "endian = 'little'" >> $cross
5989     fi
5990   else
5991     cross_arg="--native-file config-meson.cross"
5992   fi
5993   mv $cross config-meson.cross
5994
5995   rm -rf meson-private meson-info meson-logs
5996   unset staticpic
5997   if ! version_ge "$($meson --version)" 0.56.0; then
5998     staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
5999   fi
6000   NINJA=$ninja $meson setup \
6001         --prefix "$prefix" \
6002         --libdir "$libdir" \
6003         --libexecdir "$libexecdir" \
6004         --bindir "$bindir" \
6005         --includedir "$includedir" \
6006         --datadir "$datadir" \
6007         --mandir "$mandir" \
6008         --sysconfdir "$sysconfdir" \
6009         --localedir "$localedir" \
6010         --localstatedir "$local_statedir" \
6011         -Ddocdir="$docdir" \
6012         -Dqemu_firmwarepath="$firmwarepath" \
6013         -Dqemu_suffix="$qemu_suffix" \
6014         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6015         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6016         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6017         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6018         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6019         ${staticpic:+-Db_staticpic=$staticpic} \
6020         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6021         -Db_lto=$lto -Dcfi=$cfi -Dcfi_debug=$cfi_debug \
6022         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6023         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf -Dnvmm=$nvmm \
6024         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6025         -Dcocoa=$cocoa -Dgtk=$gtk -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6026         -Dlibusb=$libusb -Dsmartcard=$smartcard -Dusb_redir=$usb_redir -Dvte=$vte \
6027         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6028         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6029         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt -Dbrlapi=$brlapi \
6030         -Dcurl=$curl -Dglusterfs=$glusterfs -Dbzip2=$bzip2 -Dlibiscsi=$libiscsi \
6031         -Dlibnfs=$libnfs -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6032         -Drbd=$rbd -Dlzo=$lzo -Dsnappy=$snappy -Dlzfse=$lzfse -Dlibxml2=$libxml2 \
6033         -Dlibdaxctl=$libdaxctl -Dlibpmem=$libpmem -Dlinux_io_uring=$linux_io_uring \
6034         -Dgnutls=$gnutls -Dnettle=$nettle -Dgcrypt=$gcrypt -Dauth_pam=$auth_pam \
6035         -Dzstd=$zstd -Dseccomp=$seccomp -Dvirtfs=$virtfs -Dcap_ng=$cap_ng \
6036         -Dattr=$attr -Ddefault_devices=$default_devices -Dvirglrenderer=$virglrenderer \
6037         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6038         -Dvhost_user_blk_server=$vhost_user_blk_server -Dmultiprocess=$multiprocess \
6039         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek -Dguest_agent_msi=$guest_agent_msi -Dbpf=$bpf\
6040         $(if test "$default_features" = no; then echo "-Dauto_features=disabled"; fi) \
6041         -Dtcg_interpreter=$tcg_interpreter \
6042         $cross_arg \
6043         "$PWD" "$source_path"
6044
6045   if test "$?" -ne 0 ; then
6046       error_exit "meson setup failed"
6047   fi
6048 else
6049   if test -f meson-private/cmd_line.txt; then
6050     # Adjust old command line options whose type was changed
6051     # Avoids having to use "setup --wipe" when Meson is upgraded
6052     perl -i -ne '
6053       s/^gettext = true$/gettext = auto/;
6054       s/^gettext = false$/gettext = disabled/;
6055       print;' meson-private/cmd_line.txt
6056   fi
6057 fi
6058
6059 if test -n "${deprecated_features}"; then
6060     echo "Warning, deprecated features enabled."
6061     echo "Please see docs/system/deprecated.rst"
6062     echo "  features: ${deprecated_features}"
6063 fi
6064
6065 # Create list of config switches that should be poisoned in common code...
6066 # but filter out CONFIG_TCG and CONFIG_USER_ONLY which are special.
6067 target_configs_h=$(ls *-config-devices.h *-config-target.h 2>/dev/null)
6068 if test -n "$target_configs_h" ; then
6069     sed -n -e '/CONFIG_TCG/d' -e '/CONFIG_USER_ONLY/d' \
6070         -e '/^#define / { s///; s/ .*//; s/^/#pragma GCC poison /p; }' \
6071         $target_configs_h | sort -u > config-poison.h
6072 else
6073     :> config-poison.h
6074 fi
6075
6076 # Save the configure command line for later reuse.
6077 cat <<EOD >config.status
6078 #!/bin/sh
6079 # Generated by configure.
6080 # Run this file to recreate the current configuration.
6081 # Compiler output produced by configure, useful for debugging
6082 # configure, is in config.log if it exists.
6083 EOD
6084
6085 preserve_env() {
6086     envname=$1
6087
6088     eval envval=\$$envname
6089
6090     if test -n "$envval"
6091     then
6092         echo "$envname='$envval'" >> config.status
6093         echo "export $envname" >> config.status
6094     else
6095         echo "unset $envname" >> config.status
6096     fi
6097 }
6098
6099 # Preserve various env variables that influence what
6100 # features/build target configure will detect
6101 preserve_env AR
6102 preserve_env AS
6103 preserve_env CC
6104 preserve_env CPP
6105 preserve_env CXX
6106 preserve_env INSTALL
6107 preserve_env LD
6108 preserve_env LD_LIBRARY_PATH
6109 preserve_env LIBTOOL
6110 preserve_env MAKE
6111 preserve_env NM
6112 preserve_env OBJCOPY
6113 preserve_env PATH
6114 preserve_env PKG_CONFIG
6115 preserve_env PKG_CONFIG_LIBDIR
6116 preserve_env PKG_CONFIG_PATH
6117 preserve_env PYTHON
6118 preserve_env SDL2_CONFIG
6119 preserve_env SMBD
6120 preserve_env STRIP
6121 preserve_env WINDRES
6122
6123 printf "exec" >>config.status
6124 for i in "$0" "$@"; do
6125   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
6126 done
6127 echo ' "$@"' >>config.status
6128 chmod +x config.status
6129
6130 rm -r "$TMPDIR1"