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 print_error() {
  93     (echo
  94     echo "ERROR: $1"
  95     while test -n "$2"; do
  96         echo "       $2"
  97         shift
  98     done
  99     echo) >&2
 100 }
 101
 102 error_exit() {
 103     print_error "$@"
 104     exit 1
 105 }
 106
 107 do_compiler() {
 108     # Run the compiler, capturing its output to the log. First argument
 109     # is compiler binary to execute.
 110     local compiler="$1"
 111     shift
 112     if test -n "$BASH_VERSION"; then eval '
 113         echo >>config.log "
 114 funcs: ${FUNCNAME[*]}
 115 lines: ${BASH_LINENO[*]}"
 116     '; fi
 117     echo $compiler "$@" >> config.log
 118     $compiler "$@" >> config.log 2>&1 || return $?
 119     # Test passed. If this is an --enable-werror build, rerun
 120     # the test with -Werror and bail out if it fails. This
 121     # makes warning-generating-errors in configure test code
 122     # obvious to developers.
 123     if test "$werror" != "yes"; then
 124         return 0
 125     fi
 126     # Don't bother rerunning the compile if we were already using -Werror
 127     case "$*" in
 128         *-Werror*)
 129            return 0
 130         ;;
 131     esac
 132     echo $compiler -Werror "$@" >> config.log
 133     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 134     error_exit "configure test passed without -Werror but failed with -Werror." \
 135         "This is probably a bug in the configure script. The failing command" \
 136         "will be at the bottom of config.log." \
 137         "You can run configure with --disable-werror to bypass this check."
 138 }
 139
 140 do_cc() {
 141     do_compiler "$cc" "$@"
 142 }
 143
 144 do_cxx() {
 145     do_compiler "$cxx" "$@"
 146 }
 147
 148 # Append $2 to the variable named $1, with space separation
 149 add_to() {
 150     eval $1=\${$1:+\"\$$1 \"}\$2
 151 }
 152
 153 update_cxxflags() {
 154     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 155     # options which some versions of GCC's C++ compiler complain about
 156     # because they only make sense for C programs.
 157     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 158     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu99/-std=gnu++11/)
 159     for arg in $QEMU_CFLAGS; do
 160         case $arg in
 161             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 162             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 163                 ;;
 164             *)
 165                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 166                 ;;
 167         esac
 168     done
 169 }
 170
 171 compile_object() {
 172   local_cflags="$1"
 173   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 174 }
 175
 176 compile_prog() {
 177   local_cflags="$1"
 178   local_ldflags="$2"
 179   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 180       $LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 181 }
 182
 183 # symbolically link $1 to $2.  Portable version of "ln -sf".
 184 symlink() {
 185   rm -rf "$2"
 186   mkdir -p "$(dirname "$2")"
 187   ln -s "$1" "$2"
 188 }
 189
 190 # check whether a command is available to this shell (may be either an
 191 # executable or a builtin)
 192 has() {
 193     type "$1" >/dev/null 2>&1
 194 }
 195
 196 version_ge () {
 197     local_ver1=`echo $1 | tr . ' '`
 198     local_ver2=`echo $2 | tr . ' '`
 199     while true; do
 200         set x $local_ver1
 201         local_first=${2-0}
 202         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 203         shift ${2:+2}
 204         local_ver1=$*
 205         set x $local_ver2
 206         # the second argument finished, the first must be greater or equal
 207         test $# = 1 && return 0
 208         test $local_first -lt $2 && return 1
 209         test $local_first -gt $2 && return 0
 210         shift ${2:+2}
 211         local_ver2=$*
 212     done
 213 }
 214
 215 have_backend () {
 216     echo "$trace_backends" | grep "$1" >/dev/null
 217 }
 218
 219 glob() {
 220     eval test -z '"${1#'"$2"'}"'
 221 }
 222
 223 ld_has() {
 224     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 225 }
 226
 227 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 228 then
 229   error_exit "main directory cannot contain spaces nor colons"
 230 fi
 231
 232 # default parameters
 233 cpu=""
 234 iasl="iasl"
 235 interp_prefix="/usr/gnemul/qemu-%M"
 236 static="no"
 237 cross_prefix=""
 238 audio_drv_list=""
 239 block_drv_rw_whitelist=""
 240 block_drv_ro_whitelist=""
 241 host_cc="cc"
 242 audio_win_int=""
 243 libs_qga=""
 244 debug_info="yes"
 245 stack_protector=""
 246 safe_stack=""
 247 use_containers="yes"
 248 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 249
 250 if test -e "$source_path/.git"
 251 then
 252     git_update=yes
 253     git_submodules="ui/keycodemapdb"
 254     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 255     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 256 else
 257     git_update=no
 258     git_submodules=""
 259
 260     if ! test -f "$source_path/ui/keycodemapdb/README"
 261     then
 262         echo
 263         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 264         echo
 265         echo "This is not a GIT checkout but module content appears to"
 266         echo "be missing. Do not use 'git archive' or GitHub download links"
 267         echo "to acquire QEMU source archives. Non-GIT builds are only"
 268         echo "supported with source archives linked from:"
 269         echo
 270         echo "  https://www.qemu.org/download/#source"
 271         echo
 272         echo "Developers working with GIT can use scripts/archive-source.sh"
 273         echo "if they need to create valid source archives."
 274         echo
 275         exit 1
 276     fi
 277 fi
 278 git="git"
 279
 280 # Don't accept a target_list environment variable.
 281 unset target_list
 282 unset target_list_exclude
 283
 284 # Default value for a variable defining feature "foo".
 285 #  * foo="no"  feature will only be used if --enable-foo arg is given
 286 #  * foo=""    feature will be searched for, and if found, will be used
 287 #              unless --disable-foo is given
 288 #  * foo="yes" this value will only be set by --enable-foo flag.
 289 #              feature will searched for,
 290 #              if not found, configure exits with error
 291 #
 292 # Always add --enable-foo and --disable-foo command line args.
 293 # Distributions want to ensure that several features are compiled in, and it
 294 # is impossible without a --enable-foo that exits if a feature is not found.
 295
 296 brlapi=""
 297 curl=""
 298 iconv="auto"
 299 curses="auto"
 300 docs="auto"
 301 fdt="auto"
 302 netmap="no"
 303 sdl="auto"
 304 sdl_image="auto"
 305 virtfs=""
 306 libudev="auto"
 307 mpath="auto"
 308 vnc="enabled"
 309 sparse="auto"
 310 vde=""
 311 vnc_sasl="auto"
 312 vnc_jpeg="auto"
 313 vnc_png="auto"
 314 xkbcommon="auto"
 315 xen=""
 316 xen_ctrl_version=""
 317 xen_pci_passthrough="auto"
 318 linux_aio=""
 319 linux_io_uring=""
 320 cap_ng=""
 321 attr=""
 322 libattr=""
 323 xfs=""
 324 tcg="enabled"
 325 membarrier=""
 326 vhost_net=""
 327 vhost_crypto=""
 328 vhost_scsi=""
 329 vhost_vsock=""
 330 vhost_user=""
 331 vhost_user_fs=""
 332 kvm="auto"
 333 hax="auto"
 334 hvf="auto"
 335 whpx="auto"
 336 rdma=""
 337 pvrdma=""
 338 gprof="no"
 339 debug_tcg="no"
 340 debug="no"
 341 sanitizers="no"
 342 tsan="no"
 343 fortify_source=""
 344 strip_opt="yes"
 345 tcg_interpreter="no"
 346 bigendian="no"
 347 mingw32="no"
 348 gcov="no"
 349 EXESUF=""
 350 HOST_DSOSUF=".so"
 351 modules="no"
 352 module_upgrades="no"
 353 prefix="/usr/local"
 354 qemu_suffix="qemu"
 355 slirp="auto"
 356 oss_lib=""
 357 bsd="no"
 358 linux="no"
 359 solaris="no"
 360 profiler="no"
 361 cocoa="auto"
 362 softmmu="yes"
 363 linux_user="no"
 364 bsd_user="no"
 365 blobs="yes"
 366 edk2_blobs="no"
 367 pkgversion=""
 368 pie=""
 369 qom_cast_debug="yes"
 370 trace_backends="log"
 371 trace_file="trace"
 372 spice=""
 373 rbd=""
 374 smartcard=""
 375 u2f="auto"
 376 libusb=""
 377 usb_redir=""
 378 opengl=""
 379 opengl_dmabuf="no"
 380 cpuid_h="no"
 381 avx2_opt=""
 382 capstone="auto"
 383 lzo=""
 384 snappy=""
 385 bzip2=""
 386 lzfse=""
 387 zstd=""
 388 guest_agent=""
 389 guest_agent_with_vss="no"
 390 guest_agent_ntddscsi="no"
 391 guest_agent_msi=""
 392 vss_win32_sdk=""
 393 win_sdk="no"
 394 want_tools=""
 395 libiscsi=""
 396 libnfs=""
 397 coroutine=""
 398 coroutine_pool=""
 399 debug_stack_usage="no"
 400 crypto_afalg="no"
 401 seccomp=""
 402 glusterfs=""
 403 glusterfs_xlator_opt="no"
 404 glusterfs_discard="no"
 405 glusterfs_fallocate="no"
 406 glusterfs_zerofill="no"
 407 glusterfs_ftruncate_has_stat="no"
 408 glusterfs_iocb_has_stat="no"
 409 gtk=""
 410 gtk_gl="no"
 411 tls_priority="NORMAL"
 412 gnutls=""
 413 nettle=""
 414 nettle_xts="no"
 415 gcrypt=""
 416 gcrypt_hmac="no"
 417 gcrypt_xts="no"
 418 qemu_private_xts="yes"
 419 auth_pam=""
 420 vte=""
 421 virglrenderer=""
 422 tpm=""
 423 libssh=""
 424 live_block_migration="yes"
 425 numa=""
 426 tcmalloc="no"
 427 jemalloc="no"
 428 replication="yes"
 429 bochs="yes"
 430 cloop="yes"
 431 dmg="yes"
 432 qcow1="yes"
 433 vdi="yes"
 434 vvfat="yes"
 435 qed="yes"
 436 parallels="yes"
 437 sheepdog="no"
 438 libxml2=""
 439 debug_mutex="no"
 440 libpmem=""
 441 default_devices="yes"
 442 plugins="no"
 443 fuzzing="no"
 444 rng_none="no"
 445 secret_keyring=""
 446 libdaxctl=""
 447 meson=""
 448 ninja=""
 449 skip_meson=no
 450 gettext=""
 451
 452 bogus_os="no"
 453 malloc_trim="auto"
 454
 455 # parse CC options first
 456 for opt do
 457   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 458   case "$opt" in
 459   --cross-prefix=*) cross_prefix="$optarg"
 460   ;;
 461   --cc=*) CC="$optarg"
 462   ;;
 463   --cxx=*) CXX="$optarg"
 464   ;;
 465   --cpu=*) cpu="$optarg"
 466   ;;
 467   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 468                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 469   ;;
 470   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 471   ;;
 472   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 473                      EXTRA_LDFLAGS="$optarg"
 474   ;;
 475   --enable-debug-info) debug_info="yes"
 476   ;;
 477   --disable-debug-info) debug_info="no"
 478   ;;
 479   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 480   ;;
 481   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 482                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 483                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 484   ;;
 485   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 486                 cc_archs="$cc_archs $cc_arch"
 487                 eval "cross_cc_${cc_arch}=\$optarg"
 488                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 489   ;;
 490   esac
 491 done
 492 # OS specific
 493 # Using uname is really, really broken.  Once we have the right set of checks
 494 # we can eliminate its usage altogether.
 495
 496 # Preferred compiler:
 497 #  ${CC} (if set)
 498 #  ${cross_prefix}gcc (if cross-prefix specified)
 499 #  system compiler
 500 if test -z "${CC}${cross_prefix}"; then
 501   cc="$host_cc"
 502 else
 503   cc="${CC-${cross_prefix}gcc}"
 504 fi
 505
 506 if test -z "${CXX}${cross_prefix}"; then
 507   cxx="c++"
 508 else
 509   cxx="${CXX-${cross_prefix}g++}"
 510 fi
 511
 512 ar="${AR-${cross_prefix}ar}"
 513 as="${AS-${cross_prefix}as}"
 514 ccas="${CCAS-$cc}"
 515 cpp="${CPP-$cc -E}"
 516 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 517 ld="${LD-${cross_prefix}ld}"
 518 ranlib="${RANLIB-${cross_prefix}ranlib}"
 519 nm="${NM-${cross_prefix}nm}"
 520 strip="${STRIP-${cross_prefix}strip}"
 521 windres="${WINDRES-${cross_prefix}windres}"
 522 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 523 query_pkg_config() {
 524     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 525 }
 526 pkg_config=query_pkg_config
 527 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 528
 529 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 530 ARFLAGS="${ARFLAGS-rv}"
 531
 532 # default flags for all hosts
 533 # We use -fwrapv to tell the compiler that we require a C dialect where
 534 # left shift of signed integers is well defined and has the expected
 535 # 2s-complement style results. (Both clang and gcc agree that it
 536 # provides these semantics.)
 537 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 538 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 539 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 540 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 541
 542 # Flags that are needed during configure but later taken care of by Meson
 543 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 544 CONFIGURE_LDFLAGS=
 545
 546
 547 check_define() {
 548 cat > $TMPC <<EOF
 549 #if !defined($1)
 550 #error $1 not defined
 551 #endif
 552 int main(void) { return 0; }
 553 EOF
 554   compile_object
 555 }
 556
 557 check_include() {
 558 cat > $TMPC <<EOF
 559 #include <$1>
 560 int main(void) { return 0; }
 561 EOF
 562   compile_object
 563 }
 564
 565 write_c_skeleton() {
 566     cat > $TMPC <<EOF
 567 int main(void) { return 0; }
 568 EOF
 569 }
 570
 571 write_c_fuzzer_skeleton() {
 572     cat > $TMPC <<EOF
 573 #include <stdint.h>
 574 #include <sys/types.h>
 575 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 576 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 577 EOF
 578 }
 579
 580 if check_define __linux__ ; then
 581   targetos="Linux"
 582 elif check_define _WIN32 ; then
 583   targetos='MINGW32'
 584 elif check_define __OpenBSD__ ; then
 585   targetos='OpenBSD'
 586 elif check_define __sun__ ; then
 587   targetos='SunOS'
 588 elif check_define __HAIKU__ ; then
 589   targetos='Haiku'
 590 elif check_define __FreeBSD__ ; then
 591   targetos='FreeBSD'
 592 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 593   targetos='GNU/kFreeBSD'
 594 elif check_define __DragonFly__ ; then
 595   targetos='DragonFly'
 596 elif check_define __NetBSD__; then
 597   targetos='NetBSD'
 598 elif check_define __APPLE__; then
 599   targetos='Darwin'
 600 else
 601   # This is a fatal error, but don't report it yet, because we
 602   # might be going to just print the --help text, or it might
 603   # be the result of a missing compiler.
 604   targetos='bogus'
 605   bogus_os='yes'
 606 fi
 607
 608 # Some host OSes need non-standard checks for which CPU to use.
 609 # Note that these checks are broken for cross-compilation: if you're
 610 # cross-compiling to one of these OSes then you'll need to specify
 611 # the correct CPU with the --cpu option.
 612 case $targetos in
 613 Darwin)
 614   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 615   # run 64-bit userspace code.
 616   # If the user didn't specify a CPU explicitly and the kernel says this is
 617   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 618   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 619     cpu="x86_64"
 620   fi
 621   ;;
 622 SunOS)
 623   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 624   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 625     cpu="x86_64"
 626   fi
 627 esac
 628
 629 if test ! -z "$cpu" ; then
 630   # command line argument
 631   :
 632 elif check_define __i386__ ; then
 633   cpu="i386"
 634 elif check_define __x86_64__ ; then
 635   if check_define __ILP32__ ; then
 636     cpu="x32"
 637   else
 638     cpu="x86_64"
 639   fi
 640 elif check_define __sparc__ ; then
 641   if check_define __arch64__ ; then
 642     cpu="sparc64"
 643   else
 644     cpu="sparc"
 645   fi
 646 elif check_define _ARCH_PPC ; then
 647   if check_define _ARCH_PPC64 ; then
 648     if check_define _LITTLE_ENDIAN ; then
 649       cpu="ppc64le"
 650     else
 651       cpu="ppc64"
 652     fi
 653   else
 654     cpu="ppc"
 655   fi
 656 elif check_define __mips__ ; then
 657   cpu="mips"
 658 elif check_define __s390__ ; then
 659   if check_define __s390x__ ; then
 660     cpu="s390x"
 661   else
 662     cpu="s390"
 663   fi
 664 elif check_define __riscv ; then
 665   if check_define _LP64 ; then
 666     cpu="riscv64"
 667   else
 668     cpu="riscv32"
 669   fi
 670 elif check_define __arm__ ; then
 671   cpu="arm"
 672 elif check_define __aarch64__ ; then
 673   cpu="aarch64"
 674 else
 675   cpu=$(uname -m)
 676 fi
 677
 678 ARCH=
 679 # Normalise host CPU name and set ARCH.
 680 # Note that this case should only have supported host CPUs, not guests.
 681 case "$cpu" in
 682   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 683   ;;
 684   ppc64le)
 685     ARCH="ppc64"
 686   ;;
 687   i386|i486|i586|i686|i86pc|BePC)
 688     cpu="i386"
 689   ;;
 690   x86_64|amd64)
 691     cpu="x86_64"
 692   ;;
 693   armv*b|armv*l|arm)
 694     cpu="arm"
 695   ;;
 696   aarch64)
 697     cpu="aarch64"
 698   ;;
 699   mips*)
 700     cpu="mips"
 701   ;;
 702   sparc|sun4[cdmuv])
 703     cpu="sparc"
 704   ;;
 705   *)
 706     # This will result in either an error or falling back to TCI later
 707     ARCH=unknown
 708   ;;
 709 esac
 710 if test -z "$ARCH"; then
 711   ARCH="$cpu"
 712 fi
 713
 714 # OS specific
 715
 716 case $targetos in
 717 MINGW32*)
 718   mingw32="yes"
 719   vhost_user="no"
 720   audio_possible_drivers="dsound sdl"
 721   if check_include dsound.h; then
 722     audio_drv_list="dsound"
 723   else
 724     audio_drv_list=""
 725   fi
 726   supported_os="yes"
 727   pie="no"
 728 ;;
 729 GNU/kFreeBSD)
 730   bsd="yes"
 731   audio_drv_list="oss try-sdl"
 732   audio_possible_drivers="oss sdl pa"
 733 ;;
 734 FreeBSD)
 735   bsd="yes"
 736   make="${MAKE-gmake}"
 737   audio_drv_list="oss try-sdl"
 738   audio_possible_drivers="oss sdl pa"
 739   # needed for kinfo_getvmmap(3) in libutil.h
 740   netmap=""  # enable netmap autodetect
 741 ;;
 742 DragonFly)
 743   bsd="yes"
 744   make="${MAKE-gmake}"
 745   audio_drv_list="oss try-sdl"
 746   audio_possible_drivers="oss sdl pa"
 747 ;;
 748 NetBSD)
 749   bsd="yes"
 750   make="${MAKE-gmake}"
 751   audio_drv_list="oss try-sdl"
 752   audio_possible_drivers="oss sdl"
 753   oss_lib="-lossaudio"
 754 ;;
 755 OpenBSD)
 756   bsd="yes"
 757   make="${MAKE-gmake}"
 758   audio_drv_list="try-sdl"
 759   audio_possible_drivers="sdl"
 760 ;;
 761 Darwin)
 762   bsd="yes"
 763   darwin="yes"
 764   if [ "$cpu" = "x86_64" ] ; then
 765     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 766     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 767   fi
 768   cocoa="enabled"
 769   audio_drv_list="coreaudio try-sdl"
 770   audio_possible_drivers="coreaudio sdl"
 771   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 772   # Disable attempts to use ObjectiveC features in os/object.h since they
 773   # won't work when we're compiling with gcc as a C compiler.
 774   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 775 ;;
 776 SunOS)
 777   solaris="yes"
 778   make="${MAKE-gmake}"
 779   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 780   if test -f /usr/include/sys/soundcard.h ; then
 781     audio_drv_list="oss try-sdl"
 782   fi
 783   audio_possible_drivers="oss sdl"
 784 # needed for CMSG_ macros in sys/socket.h
 785   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 786 # needed for TIOCWIN* defines in termios.h
 787   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 788 ;;
 789 Haiku)
 790   haiku="yes"
 791   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -DBSD_SOURCE $QEMU_CFLAGS"
 792 ;;
 793 Linux)
 794   audio_drv_list="try-pa oss"
 795   audio_possible_drivers="oss alsa sdl pa"
 796   linux="yes"
 797   linux_user="yes"
 798 ;;
 799 esac
 800
 801 if [ "$bsd" = "yes" ] ; then
 802   if [ "$darwin" != "yes" ] ; then
 803     bsd_user="yes"
 804   fi
 805 fi
 806
 807 : ${make=${MAKE-make}}
 808
 809 # We prefer python 3.x. A bare 'python' is traditionally
 810 # python 2.x, but some distros have it as python 3.x, so
 811 # we check that too
 812 python=
 813 explicit_python=no
 814 for binary in "${PYTHON-python3}" python
 815 do
 816     if has "$binary"
 817     then
 818         python=$(command -v "$binary")
 819         break
 820     fi
 821 done
 822
 823
 824 # Check for ancillary tools used in testing
 825 genisoimage=
 826 for binary in genisoimage mkisofs
 827 do
 828     if has $binary
 829     then
 830         genisoimage=$(command -v "$binary")
 831         break
 832     fi
 833 done
 834
 835 : ${smbd=${SMBD-/usr/sbin/smbd}}
 836
 837 # Default objcc to clang if available, otherwise use CC
 838 if has clang; then
 839   objcc=clang
 840 else
 841   objcc="$cc"
 842 fi
 843
 844 if test "$mingw32" = "yes" ; then
 845   EXESUF=".exe"
 846   HOST_DSOSUF=".dll"
 847   # MinGW needs -mthreads for TLS and macro _MT.
 848   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 849   write_c_skeleton;
 850   prefix="/qemu"
 851   qemu_suffix=""
 852   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 853 fi
 854
 855 werror=""
 856
 857 for opt do
 858   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 859   case "$opt" in
 860   --help|-h) show_help=yes
 861   ;;
 862   --version|-V) exec cat $source_path/VERSION
 863   ;;
 864   --prefix=*) prefix="$optarg"
 865   ;;
 866   --interp-prefix=*) interp_prefix="$optarg"
 867   ;;
 868   --cross-prefix=*)
 869   ;;
 870   --cc=*)
 871   ;;
 872   --host-cc=*) host_cc="$optarg"
 873   ;;
 874   --cxx=*)
 875   ;;
 876   --iasl=*) iasl="$optarg"
 877   ;;
 878   --objcc=*) objcc="$optarg"
 879   ;;
 880   --make=*) make="$optarg"
 881   ;;
 882   --install=*)
 883   ;;
 884   --python=*) python="$optarg" ; explicit_python=yes
 885   ;;
 886   --sphinx-build=*) sphinx_build="$optarg"
 887   ;;
 888   --skip-meson) skip_meson=yes
 889   ;;
 890   --meson=*) meson="$optarg"
 891   ;;
 892   --ninja=*) ninja="$optarg"
 893   ;;
 894   --smbd=*) smbd="$optarg"
 895   ;;
 896   --extra-cflags=*)
 897   ;;
 898   --extra-cxxflags=*)
 899   ;;
 900   --extra-ldflags=*)
 901   ;;
 902   --enable-debug-info)
 903   ;;
 904   --disable-debug-info)
 905   ;;
 906   --cross-cc-*)
 907   ;;
 908   --enable-modules)
 909       modules="yes"
 910   ;;
 911   --disable-modules)
 912       modules="no"
 913   ;;
 914   --disable-module-upgrades) module_upgrades="no"
 915   ;;
 916   --enable-module-upgrades) module_upgrades="yes"
 917   ;;
 918   --cpu=*)
 919   ;;
 920   --target-list=*) target_list="$optarg"
 921                    if test "$target_list_exclude"; then
 922                        error_exit "Can't mix --target-list with --target-list-exclude"
 923                    fi
 924   ;;
 925   --target-list-exclude=*) target_list_exclude="$optarg"
 926                    if test "$target_list"; then
 927                        error_exit "Can't mix --target-list-exclude with --target-list"
 928                    fi
 929   ;;
 930   --enable-trace-backends=*) trace_backends="$optarg"
 931   ;;
 932   # XXX: backwards compatibility
 933   --enable-trace-backend=*) trace_backends="$optarg"
 934   ;;
 935   --with-trace-file=*) trace_file="$optarg"
 936   ;;
 937   --with-default-devices) default_devices="yes"
 938   ;;
 939   --without-default-devices) default_devices="no"
 940   ;;
 941   --enable-gprof) gprof="yes"
 942   ;;
 943   --enable-gcov) gcov="yes"
 944   ;;
 945   --static)
 946     static="yes"
 947     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 948   ;;
 949   --mandir=*) mandir="$optarg"
 950   ;;
 951   --bindir=*) bindir="$optarg"
 952   ;;
 953   --libdir=*) libdir="$optarg"
 954   ;;
 955   --libexecdir=*) libexecdir="$optarg"
 956   ;;
 957   --includedir=*) includedir="$optarg"
 958   ;;
 959   --datadir=*) datadir="$optarg"
 960   ;;
 961   --with-suffix=*) qemu_suffix="$optarg"
 962   ;;
 963   --docdir=*) docdir="$optarg"
 964   ;;
 965   --sysconfdir=*) sysconfdir="$optarg"
 966   ;;
 967   --localstatedir=*) local_statedir="$optarg"
 968   ;;
 969   --firmwarepath=*) firmwarepath="$optarg"
 970   ;;
 971   --host=*|--build=*|\
 972   --disable-dependency-tracking|\
 973   --sbindir=*|--sharedstatedir=*|\
 974   --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
 975   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 976     # These switches are silently ignored, for compatibility with
 977     # autoconf-generated configure scripts. This allows QEMU's
 978     # configure to be used by RPM and similar macros that set
 979     # lots of directory switches by default.
 980   ;;
 981   --disable-sdl) sdl="disabled"
 982   ;;
 983   --enable-sdl) sdl="enabled"
 984   ;;
 985   --disable-sdl-image) sdl_image="disabled"
 986   ;;
 987   --enable-sdl-image) sdl_image="enabled"
 988   ;;
 989   --disable-qom-cast-debug) qom_cast_debug="no"
 990   ;;
 991   --enable-qom-cast-debug) qom_cast_debug="yes"
 992   ;;
 993   --disable-virtfs) virtfs="no"
 994   ;;
 995   --enable-virtfs) virtfs="yes"
 996   ;;
 997   --disable-libudev) libudev="disabled"
 998   ;;
 999   --enable-libudev) libudev="enabled"
1000   ;;
1001   --disable-mpath) mpath="disabled"
1002   ;;
1003   --enable-mpath) mpath="enabled"
1004   ;;
1005   --disable-vnc) vnc="disabled"
1006   ;;
1007   --enable-vnc) vnc="enabled"
1008   ;;
1009   --disable-gettext) gettext="false"
1010   ;;
1011   --enable-gettext) gettext="true"
1012   ;;
1013   --oss-lib=*) oss_lib="$optarg"
1014   ;;
1015   --audio-drv-list=*) audio_drv_list="$optarg"
1016   ;;
1017   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1018   ;;
1019   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1020   ;;
1021   --enable-debug-tcg) debug_tcg="yes"
1022   ;;
1023   --disable-debug-tcg) debug_tcg="no"
1024   ;;
1025   --enable-debug)
1026       # Enable debugging options that aren't excessively noisy
1027       debug_tcg="yes"
1028       debug_mutex="yes"
1029       debug="yes"
1030       strip_opt="no"
1031       fortify_source="no"
1032   ;;
1033   --enable-sanitizers) sanitizers="yes"
1034   ;;
1035   --disable-sanitizers) sanitizers="no"
1036   ;;
1037   --enable-tsan) tsan="yes"
1038   ;;
1039   --disable-tsan) tsan="no"
1040   ;;
1041   --enable-sparse) sparse="enabled"
1042   ;;
1043   --disable-sparse) sparse="disabled"
1044   ;;
1045   --disable-strip) strip_opt="no"
1046   ;;
1047   --disable-vnc-sasl) vnc_sasl="disabled"
1048   ;;
1049   --enable-vnc-sasl) vnc_sasl="enabled"
1050   ;;
1051   --disable-vnc-jpeg) vnc_jpeg="disabled"
1052   ;;
1053   --enable-vnc-jpeg) vnc_jpeg="enabled"
1054   ;;
1055   --disable-vnc-png) vnc_png="disabled"
1056   ;;
1057   --enable-vnc-png) vnc_png="enabled"
1058   ;;
1059   --disable-slirp) slirp="disabled"
1060   ;;
1061   --enable-slirp=git) slirp="internal"
1062   ;;
1063   --enable-slirp=system) slirp="system"
1064   ;;
1065   --disable-vde) vde="no"
1066   ;;
1067   --enable-vde) vde="yes"
1068   ;;
1069   --disable-netmap) netmap="no"
1070   ;;
1071   --enable-netmap) netmap="yes"
1072   ;;
1073   --disable-xen) xen="disabled"
1074   ;;
1075   --enable-xen) xen="enabled"
1076   ;;
1077   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1078   ;;
1079   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1080   ;;
1081   --disable-brlapi) brlapi="no"
1082   ;;
1083   --enable-brlapi) brlapi="yes"
1084   ;;
1085   --disable-kvm) kvm="disabled"
1086   ;;
1087   --enable-kvm) kvm="enabled"
1088   ;;
1089   --disable-hax) hax="disabled"
1090   ;;
1091   --enable-hax) hax="enabled"
1092   ;;
1093   --disable-hvf) hvf="disabled"
1094   ;;
1095   --enable-hvf) hvf="enabled"
1096   ;;
1097   --disable-whpx) whpx="disabled"
1098   ;;
1099   --enable-whpx) whpx="enabled"
1100   ;;
1101   --disable-tcg-interpreter) tcg_interpreter="no"
1102   ;;
1103   --enable-tcg-interpreter) tcg_interpreter="yes"
1104   ;;
1105   --disable-cap-ng)  cap_ng="no"
1106   ;;
1107   --enable-cap-ng) cap_ng="yes"
1108   ;;
1109   --disable-tcg) tcg="disabled"
1110   ;;
1111   --enable-tcg) tcg="enabled"
1112   ;;
1113   --disable-malloc-trim) malloc_trim="disabled"
1114   ;;
1115   --enable-malloc-trim) malloc_trim="enabled"
1116   ;;
1117   --disable-spice) spice="no"
1118   ;;
1119   --enable-spice) spice="yes"
1120   ;;
1121   --disable-libiscsi) libiscsi="no"
1122   ;;
1123   --enable-libiscsi) libiscsi="yes"
1124   ;;
1125   --disable-libnfs) libnfs="no"
1126   ;;
1127   --enable-libnfs) libnfs="yes"
1128   ;;
1129   --enable-profiler) profiler="yes"
1130   ;;
1131   --disable-cocoa) cocoa="disabled"
1132   ;;
1133   --enable-cocoa)
1134       cocoa="enabled" ;
1135       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1136   ;;
1137   --disable-system) softmmu="no"
1138   ;;
1139   --enable-system) softmmu="yes"
1140   ;;
1141   --disable-user)
1142       linux_user="no" ;
1143       bsd_user="no" ;
1144   ;;
1145   --enable-user) ;;
1146   --disable-linux-user) linux_user="no"
1147   ;;
1148   --enable-linux-user) linux_user="yes"
1149   ;;
1150   --disable-bsd-user) bsd_user="no"
1151   ;;
1152   --enable-bsd-user) bsd_user="yes"
1153   ;;
1154   --enable-pie) pie="yes"
1155   ;;
1156   --disable-pie) pie="no"
1157   ;;
1158   --enable-werror) werror="yes"
1159   ;;
1160   --disable-werror) werror="no"
1161   ;;
1162   --enable-stack-protector) stack_protector="yes"
1163   ;;
1164   --disable-stack-protector) stack_protector="no"
1165   ;;
1166   --enable-safe-stack) safe_stack="yes"
1167   ;;
1168   --disable-safe-stack) safe_stack="no"
1169   ;;
1170   --disable-curses) curses="disabled"
1171   ;;
1172   --enable-curses) curses="enabled"
1173   ;;
1174   --disable-iconv) iconv="disabled"
1175   ;;
1176   --enable-iconv) iconv="enabled"
1177   ;;
1178   --disable-curl) curl="no"
1179   ;;
1180   --enable-curl) curl="yes"
1181   ;;
1182   --disable-fdt) fdt="disabled"
1183   ;;
1184   --enable-fdt) fdt="enabled"
1185   ;;
1186   --enable-fdt=git) fdt="internal"
1187   ;;
1188   --enable-fdt=system) fdt="system"
1189   ;;
1190   --disable-linux-aio) linux_aio="no"
1191   ;;
1192   --enable-linux-aio) linux_aio="yes"
1193   ;;
1194   --disable-linux-io-uring) linux_io_uring="no"
1195   ;;
1196   --enable-linux-io-uring) linux_io_uring="yes"
1197   ;;
1198   --disable-attr) attr="no"
1199   ;;
1200   --enable-attr) attr="yes"
1201   ;;
1202   --disable-membarrier) membarrier="no"
1203   ;;
1204   --enable-membarrier) membarrier="yes"
1205   ;;
1206   --disable-blobs) blobs="no"
1207   ;;
1208   --with-pkgversion=*) pkgversion="$optarg"
1209   ;;
1210   --with-coroutine=*) coroutine="$optarg"
1211   ;;
1212   --disable-coroutine-pool) coroutine_pool="no"
1213   ;;
1214   --enable-coroutine-pool) coroutine_pool="yes"
1215   ;;
1216   --enable-debug-stack-usage) debug_stack_usage="yes"
1217   ;;
1218   --enable-crypto-afalg) crypto_afalg="yes"
1219   ;;
1220   --disable-crypto-afalg) crypto_afalg="no"
1221   ;;
1222   --disable-docs) docs="disabled"
1223   ;;
1224   --enable-docs) docs="enabled"
1225   ;;
1226   --disable-vhost-net) vhost_net="no"
1227   ;;
1228   --enable-vhost-net) vhost_net="yes"
1229   ;;
1230   --disable-vhost-crypto) vhost_crypto="no"
1231   ;;
1232   --enable-vhost-crypto) vhost_crypto="yes"
1233   ;;
1234   --disable-vhost-scsi) vhost_scsi="no"
1235   ;;
1236   --enable-vhost-scsi) vhost_scsi="yes"
1237   ;;
1238   --disable-vhost-vsock) vhost_vsock="no"
1239   ;;
1240   --enable-vhost-vsock) vhost_vsock="yes"
1241   ;;
1242   --disable-vhost-user-fs) vhost_user_fs="no"
1243   ;;
1244   --enable-vhost-user-fs) vhost_user_fs="yes"
1245   ;;
1246   --disable-opengl) opengl="no"
1247   ;;
1248   --enable-opengl) opengl="yes"
1249   ;;
1250   --disable-rbd) rbd="no"
1251   ;;
1252   --enable-rbd) rbd="yes"
1253   ;;
1254   --disable-xfsctl) xfs="no"
1255   ;;
1256   --enable-xfsctl) xfs="yes"
1257   ;;
1258   --disable-smartcard) smartcard="no"
1259   ;;
1260   --enable-smartcard) smartcard="yes"
1261   ;;
1262   --disable-u2f) u2f="disabled"
1263   ;;
1264   --enable-u2f) u2f="enabled"
1265   ;;
1266   --disable-libusb) libusb="no"
1267   ;;
1268   --enable-libusb) libusb="yes"
1269   ;;
1270   --disable-usb-redir) usb_redir="no"
1271   ;;
1272   --enable-usb-redir) usb_redir="yes"
1273   ;;
1274   --disable-zlib-test)
1275   ;;
1276   --disable-lzo) lzo="no"
1277   ;;
1278   --enable-lzo) lzo="yes"
1279   ;;
1280   --disable-snappy) snappy="no"
1281   ;;
1282   --enable-snappy) snappy="yes"
1283   ;;
1284   --disable-bzip2) bzip2="no"
1285   ;;
1286   --enable-bzip2) bzip2="yes"
1287   ;;
1288   --enable-lzfse) lzfse="yes"
1289   ;;
1290   --disable-lzfse) lzfse="no"
1291   ;;
1292   --disable-zstd) zstd="no"
1293   ;;
1294   --enable-zstd) zstd="yes"
1295   ;;
1296   --enable-guest-agent) guest_agent="yes"
1297   ;;
1298   --disable-guest-agent) guest_agent="no"
1299   ;;
1300   --enable-guest-agent-msi) guest_agent_msi="yes"
1301   ;;
1302   --disable-guest-agent-msi) guest_agent_msi="no"
1303   ;;
1304   --with-vss-sdk) vss_win32_sdk=""
1305   ;;
1306   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1307   ;;
1308   --without-vss-sdk) vss_win32_sdk="no"
1309   ;;
1310   --with-win-sdk) win_sdk=""
1311   ;;
1312   --with-win-sdk=*) win_sdk="$optarg"
1313   ;;
1314   --without-win-sdk) win_sdk="no"
1315   ;;
1316   --enable-tools) want_tools="yes"
1317   ;;
1318   --disable-tools) want_tools="no"
1319   ;;
1320   --enable-seccomp) seccomp="yes"
1321   ;;
1322   --disable-seccomp) seccomp="no"
1323   ;;
1324   --disable-glusterfs) glusterfs="no"
1325   ;;
1326   --disable-avx2) avx2_opt="no"
1327   ;;
1328   --enable-avx2) avx2_opt="yes"
1329   ;;
1330   --disable-avx512f) avx512f_opt="no"
1331   ;;
1332   --enable-avx512f) avx512f_opt="yes"
1333   ;;
1334
1335   --enable-glusterfs) glusterfs="yes"
1336   ;;
1337   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1338       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1339   ;;
1340   --enable-vhdx|--disable-vhdx)
1341       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1342   ;;
1343   --enable-uuid|--disable-uuid)
1344       echo "$0: $opt is obsolete, UUID support is always built" >&2
1345   ;;
1346   --disable-gtk) gtk="no"
1347   ;;
1348   --enable-gtk) gtk="yes"
1349   ;;
1350   --tls-priority=*) tls_priority="$optarg"
1351   ;;
1352   --disable-gnutls) gnutls="no"
1353   ;;
1354   --enable-gnutls) gnutls="yes"
1355   ;;
1356   --disable-nettle) nettle="no"
1357   ;;
1358   --enable-nettle) nettle="yes"
1359   ;;
1360   --disable-gcrypt) gcrypt="no"
1361   ;;
1362   --enable-gcrypt) gcrypt="yes"
1363   ;;
1364   --disable-auth-pam) auth_pam="no"
1365   ;;
1366   --enable-auth-pam) auth_pam="yes"
1367   ;;
1368   --enable-rdma) rdma="yes"
1369   ;;
1370   --disable-rdma) rdma="no"
1371   ;;
1372   --enable-pvrdma) pvrdma="yes"
1373   ;;
1374   --disable-pvrdma) pvrdma="no"
1375   ;;
1376   --disable-vte) vte="no"
1377   ;;
1378   --enable-vte) vte="yes"
1379   ;;
1380   --disable-virglrenderer) virglrenderer="no"
1381   ;;
1382   --enable-virglrenderer) virglrenderer="yes"
1383   ;;
1384   --disable-tpm) tpm="no"
1385   ;;
1386   --enable-tpm) tpm="yes"
1387   ;;
1388   --disable-libssh) libssh="no"
1389   ;;
1390   --enable-libssh) libssh="yes"
1391   ;;
1392   --disable-live-block-migration) live_block_migration="no"
1393   ;;
1394   --enable-live-block-migration) live_block_migration="yes"
1395   ;;
1396   --disable-numa) numa="no"
1397   ;;
1398   --enable-numa) numa="yes"
1399   ;;
1400   --disable-libxml2) libxml2="no"
1401   ;;
1402   --enable-libxml2) libxml2="yes"
1403   ;;
1404   --disable-tcmalloc) tcmalloc="no"
1405   ;;
1406   --enable-tcmalloc) tcmalloc="yes"
1407   ;;
1408   --disable-jemalloc) jemalloc="no"
1409   ;;
1410   --enable-jemalloc) jemalloc="yes"
1411   ;;
1412   --disable-replication) replication="no"
1413   ;;
1414   --enable-replication) replication="yes"
1415   ;;
1416   --disable-bochs) bochs="no"
1417   ;;
1418   --enable-bochs) bochs="yes"
1419   ;;
1420   --disable-cloop) cloop="no"
1421   ;;
1422   --enable-cloop) cloop="yes"
1423   ;;
1424   --disable-dmg) dmg="no"
1425   ;;
1426   --enable-dmg) dmg="yes"
1427   ;;
1428   --disable-qcow1) qcow1="no"
1429   ;;
1430   --enable-qcow1) qcow1="yes"
1431   ;;
1432   --disable-vdi) vdi="no"
1433   ;;
1434   --enable-vdi) vdi="yes"
1435   ;;
1436   --disable-vvfat) vvfat="no"
1437   ;;
1438   --enable-vvfat) vvfat="yes"
1439   ;;
1440   --disable-qed) qed="no"
1441   ;;
1442   --enable-qed) qed="yes"
1443   ;;
1444   --disable-parallels) parallels="no"
1445   ;;
1446   --enable-parallels) parallels="yes"
1447   ;;
1448   --disable-sheepdog) sheepdog="no"
1449   ;;
1450   --enable-sheepdog) sheepdog="yes"
1451   ;;
1452   --disable-vhost-user) vhost_user="no"
1453   ;;
1454   --enable-vhost-user) vhost_user="yes"
1455   ;;
1456   --disable-vhost-vdpa) vhost_vdpa="no"
1457   ;;
1458   --enable-vhost-vdpa) vhost_vdpa="yes"
1459   ;;
1460   --disable-vhost-kernel) vhost_kernel="no"
1461   ;;
1462   --enable-vhost-kernel) vhost_kernel="yes"
1463   ;;
1464   --disable-capstone) capstone="disabled"
1465   ;;
1466   --enable-capstone) capstone="enabled"
1467   ;;
1468   --enable-capstone=git) capstone="internal"
1469   ;;
1470   --enable-capstone=system) capstone="system"
1471   ;;
1472   --with-git=*) git="$optarg"
1473   ;;
1474   --enable-git-update) git_update=yes
1475   ;;
1476   --disable-git-update) git_update=no
1477   ;;
1478   --enable-debug-mutex) debug_mutex=yes
1479   ;;
1480   --disable-debug-mutex) debug_mutex=no
1481   ;;
1482   --enable-libpmem) libpmem=yes
1483   ;;
1484   --disable-libpmem) libpmem=no
1485   ;;
1486   --enable-xkbcommon) xkbcommon="enabled"
1487   ;;
1488   --disable-xkbcommon) xkbcommon="disabled"
1489   ;;
1490   --enable-plugins) plugins="yes"
1491   ;;
1492   --disable-plugins) plugins="no"
1493   ;;
1494   --enable-containers) use_containers="yes"
1495   ;;
1496   --disable-containers) use_containers="no"
1497   ;;
1498   --enable-fuzzing) fuzzing=yes
1499   ;;
1500   --disable-fuzzing) fuzzing=no
1501   ;;
1502   --gdb=*) gdb_bin="$optarg"
1503   ;;
1504   --enable-rng-none) rng_none=yes
1505   ;;
1506   --disable-rng-none) rng_none=no
1507   ;;
1508   --enable-keyring) secret_keyring="yes"
1509   ;;
1510   --disable-keyring) secret_keyring="no"
1511   ;;
1512   --enable-libdaxctl) libdaxctl=yes
1513   ;;
1514   --disable-libdaxctl) libdaxctl=no
1515   ;;
1516   *)
1517       echo "ERROR: unknown option $opt"
1518       echo "Try '$0 --help' for more information"
1519       exit 1
1520   ;;
1521   esac
1522 done
1523
1524 firmwarepath="${firmwarepath:-$prefix/share/qemu-firmware}"
1525 libdir="${libdir:-$prefix/lib}"
1526 libexecdir="${libexecdir:-$prefix/libexec}"
1527 includedir="${includedir:-$prefix/include}"
1528
1529 if test "$mingw32" = "yes" ; then
1530     mandir="$prefix"
1531     datadir="$prefix"
1532     docdir="$prefix"
1533     bindir="$prefix"
1534     sysconfdir="$prefix"
1535     local_statedir=
1536 else
1537     mandir="${mandir:-$prefix/share/man}"
1538     datadir="${datadir:-$prefix/share}"
1539     docdir="${docdir:-$prefix/share/doc}"
1540     bindir="${bindir:-$prefix/bin}"
1541     sysconfdir="${sysconfdir:-$prefix/etc}"
1542     local_statedir="${local_statedir:-$prefix/var}"
1543 fi
1544
1545 case "$cpu" in
1546     ppc)
1547            CPU_CFLAGS="-m32"
1548            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1549            ;;
1550     ppc64)
1551            CPU_CFLAGS="-m64"
1552            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1553            ;;
1554     sparc)
1555            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1556            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1557            ;;
1558     sparc64)
1559            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1560            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1561            ;;
1562     s390)
1563            CPU_CFLAGS="-m31"
1564            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1565            ;;
1566     s390x)
1567            CPU_CFLAGS="-m64"
1568            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1569            ;;
1570     i386)
1571            CPU_CFLAGS="-m32"
1572            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1573            ;;
1574     x86_64)
1575            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1576            # If we truly care, we should simply detect this case at
1577            # runtime and generate the fallback to serial emulation.
1578            CPU_CFLAGS="-m64 -mcx16"
1579            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1580            ;;
1581     x32)
1582            CPU_CFLAGS="-mx32"
1583            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1584            ;;
1585     # No special flags required for other host CPUs
1586 esac
1587
1588 eval "cross_cc_${cpu}=\$host_cc"
1589 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1590 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1591
1592 # For user-mode emulation the host arch has to be one we explicitly
1593 # support, even if we're using TCI.
1594 if [ "$ARCH" = "unknown" ]; then
1595   bsd_user="no"
1596   linux_user="no"
1597 fi
1598
1599 default_target_list=""
1600 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
1601 deprecated_features=""
1602 mak_wilds=""
1603
1604 if [ "$softmmu" = "yes" ]; then
1605     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1606 fi
1607 if [ "$linux_user" = "yes" ]; then
1608     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1609 fi
1610 if [ "$bsd_user" = "yes" ]; then
1611     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1612 fi
1613
1614 # If the user doesn't explicitly specify a deprecated target we will
1615 # skip it.
1616 if test -z "$target_list"; then
1617     if test -z "$target_list_exclude"; then
1618         target_list_exclude="$deprecated_targets_list"
1619     else
1620         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1621     fi
1622 fi
1623
1624 for config in $mak_wilds; do
1625     target="$(basename "$config" .mak)"
1626     if echo "$target_list_exclude" | grep -vq "$target"; then
1627         default_target_list="${default_target_list} $target"
1628     fi
1629 done
1630
1631 # Enumerate public trace backends for --help output
1632 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1633
1634 if test x"$show_help" = x"yes" ; then
1635 cat << EOF
1636
1637 Usage: configure [options]
1638 Options: [defaults in brackets after descriptions]
1639
1640 Standard options:
1641   --help                   print this message
1642   --prefix=PREFIX          install in PREFIX [$prefix]
1643   --interp-prefix=PREFIX   where to find shared libraries, etc.
1644                            use %M for cpu name [$interp_prefix]
1645   --target-list=LIST       set target list (default: build everything)
1646 $(echo Available targets: $default_target_list | \
1647   fold -s -w 53 | sed -e 's/^/                           /')
1648   --target-list-exclude=LIST exclude a set of targets from the default target-list
1649
1650 Advanced options (experts only):
1651   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1652   --cc=CC                  use C compiler CC [$cc]
1653   --iasl=IASL              use ACPI compiler IASL [$iasl]
1654   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1655                            build time
1656   --cxx=CXX                use C++ compiler CXX [$cxx]
1657   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1658   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1659   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1660   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1661   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1662   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1663   --make=MAKE              use specified make [$make]
1664   --python=PYTHON          use specified python [$python]
1665   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1666   --meson=MESON            use specified meson [$meson]
1667   --ninja=NINJA            use specified ninja [$ninja]
1668   --smbd=SMBD              use specified smbd [$smbd]
1669   --with-git=GIT           use specified git [$git]
1670   --static                 enable static build [$static]
1671   --mandir=PATH            install man pages in PATH
1672   --datadir=PATH           install firmware in PATH/$qemu_suffix
1673   --docdir=PATH            install documentation in PATH/$qemu_suffix
1674   --bindir=PATH            install binaries in PATH
1675   --libdir=PATH            install libraries in PATH
1676   --libexecdir=PATH        install helper binaries in PATH
1677   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1678   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1679   --firmwarepath=PATH      search PATH for firmware files
1680   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1681   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1682   --with-pkgversion=VERS   use specified string as sub-version of the package
1683   --enable-debug           enable common debug build options
1684   --enable-sanitizers      enable default sanitizers
1685   --enable-tsan            enable thread sanitizer
1686   --disable-strip          disable stripping binaries
1687   --disable-werror         disable compilation abort on warning
1688   --disable-stack-protector disable compiler-provided stack protection
1689   --audio-drv-list=LIST    set audio drivers list:
1690                            Available drivers: $audio_possible_drivers
1691   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1692   --block-drv-rw-whitelist=L
1693                            set block driver read-write whitelist
1694                            (affects only QEMU, not qemu-img)
1695   --block-drv-ro-whitelist=L
1696                            set block driver read-only whitelist
1697                            (affects only QEMU, not qemu-img)
1698   --enable-trace-backends=B Set trace backend
1699                            Available backends: $trace_backend_list
1700   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1701                            Default:trace-<pid>
1702   --disable-slirp          disable SLIRP userspace network connectivity
1703   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1704   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1705   --oss-lib                path to OSS library
1706   --cpu=CPU                Build for host CPU [$cpu]
1707   --with-coroutine=BACKEND coroutine backend. Supported options:
1708                            ucontext, sigaltstack, windows
1709   --enable-gcov            enable test coverage analysis with gcov
1710   --disable-blobs          disable installing provided firmware blobs
1711   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1712   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1713   --tls-priority           default TLS protocol/cipher priority string
1714   --enable-gprof           QEMU profiling with gprof
1715   --enable-profiler        profiler support
1716   --enable-debug-stack-usage
1717                            track the maximum stack usage of stacks created by qemu_alloc_stack
1718   --enable-plugins
1719                            enable plugins via shared library loading
1720   --disable-containers     don't use containers for cross-building
1721   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1722
1723 Optional features, enabled with --enable-FEATURE and
1724 disabled with --disable-FEATURE, default is enabled if available:
1725
1726   system          all system emulation targets
1727   user            supported user emulation targets
1728   linux-user      all linux usermode emulation targets
1729   bsd-user        all BSD usermode emulation targets
1730   docs            build documentation
1731   guest-agent     build the QEMU Guest Agent
1732   guest-agent-msi build guest agent Windows MSI installation package
1733   pie             Position Independent Executables
1734   modules         modules support (non-Windows)
1735   module-upgrades try to load modules from alternate paths for upgrades
1736   debug-tcg       TCG debugging (default is disabled)
1737   debug-info      debugging information
1738   sparse          sparse checker
1739   safe-stack      SafeStack Stack Smash Protection. Depends on
1740                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1741
1742   gnutls          GNUTLS cryptography support
1743   nettle          nettle cryptography support
1744   gcrypt          libgcrypt cryptography support
1745   auth-pam        PAM access control
1746   sdl             SDL UI
1747   sdl-image       SDL Image support for icons
1748   gtk             gtk UI
1749   vte             vte support for the gtk UI
1750   curses          curses UI
1751   iconv           font glyph conversion support
1752   vnc             VNC UI support
1753   vnc-sasl        SASL encryption for VNC server
1754   vnc-jpeg        JPEG lossy compression for VNC server
1755   vnc-png         PNG compression for VNC server
1756   cocoa           Cocoa UI (Mac OS X only)
1757   virtfs          VirtFS
1758   libudev         Use libudev to enumerate host devices
1759   mpath           Multipath persistent reservation passthrough
1760   xen             xen backend driver support
1761   xen-pci-passthrough    PCI passthrough support for Xen
1762   brlapi          BrlAPI (Braile)
1763   curl            curl connectivity
1764   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1765   fdt             fdt device tree
1766   kvm             KVM acceleration support
1767   hax             HAX acceleration support
1768   hvf             Hypervisor.framework acceleration support
1769   whpx            Windows Hypervisor Platform acceleration support
1770   rdma            Enable RDMA-based migration
1771   pvrdma          Enable PVRDMA support
1772   vde             support for vde network
1773   netmap          support for netmap network
1774   linux-aio       Linux AIO support
1775   linux-io-uring  Linux io_uring support
1776   cap-ng          libcap-ng support
1777   attr            attr and xattr support
1778   vhost-net       vhost-net kernel acceleration support
1779   vhost-vsock     virtio sockets device support
1780   vhost-scsi      vhost-scsi kernel target support
1781   vhost-crypto    vhost-user-crypto backend support
1782   vhost-kernel    vhost kernel backend support
1783   vhost-user      vhost-user backend support
1784   vhost-vdpa      vhost-vdpa kernel backend support
1785   spice           spice
1786   rbd             rados block device (rbd)
1787   libiscsi        iscsi support
1788   libnfs          nfs support
1789   smartcard       smartcard support (libcacard)
1790   u2f             U2F support (u2f-emu)
1791   libusb          libusb (for usb passthrough)
1792   live-block-migration   Block migration in the main migration stream
1793   usb-redir       usb network redirection support
1794   lzo             support of lzo compression library
1795   snappy          support of snappy compression library
1796   bzip2           support of bzip2 compression library
1797                   (for reading bzip2-compressed dmg images)
1798   lzfse           support of lzfse compression library
1799                   (for reading lzfse-compressed dmg images)
1800   zstd            support for zstd compression library
1801                   (for migration compression and qcow2 cluster compression)
1802   seccomp         seccomp support
1803   coroutine-pool  coroutine freelist (better performance)
1804   glusterfs       GlusterFS backend
1805   tpm             TPM support
1806   libssh          ssh block device support
1807   numa            libnuma support
1808   libxml2         for Parallels image format
1809   tcmalloc        tcmalloc support
1810   jemalloc        jemalloc support
1811   avx2            AVX2 optimization support
1812   avx512f         AVX512F optimization support
1813   replication     replication support
1814   opengl          opengl support
1815   virglrenderer   virgl rendering support
1816   xfsctl          xfsctl support
1817   qom-cast-debug  cast debugging support
1818   tools           build qemu-io, qemu-nbd and qemu-img tools
1819   bochs           bochs image format support
1820   cloop           cloop image format support
1821   dmg             dmg image format support
1822   qcow1           qcow v1 image format support
1823   vdi             vdi image format support
1824   vvfat           vvfat image format support
1825   qed             qed image format support
1826   parallels       parallels image format support
1827   sheepdog        sheepdog block driver support (deprecated)
1828   crypto-afalg    Linux AF_ALG crypto backend driver
1829   capstone        capstone disassembler support
1830   debug-mutex     mutex debugging support
1831   libpmem         libpmem support
1832   xkbcommon       xkbcommon support
1833   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1834   libdaxctl       libdaxctl support
1835
1836 NOTE: The object files are built at the place where configure is launched
1837 EOF
1838 exit 0
1839 fi
1840
1841 # Remove old dependency files to make sure that they get properly regenerated
1842 rm -f */config-devices.mak.d
1843
1844 if test -z "$python"
1845 then
1846     error_exit "Python not found. Use --python=/path/to/python"
1847 fi
1848
1849 # Note that if the Python conditional here evaluates True we will exit
1850 # with status 1 which is a shell 'false' value.
1851 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1852   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1853       "Use --python=/path/to/python to specify a supported Python."
1854 fi
1855
1856 # Preserve python version since some functionality is dependent on it
1857 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)
1858
1859 # Suppress writing compiled files
1860 python="$python -B"
1861
1862 if test -z "$meson"; then
1863     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1864         meson=meson
1865     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1866         meson=git
1867     elif test -e "${source_path}/meson/meson.py" ; then
1868         meson=internal
1869     else
1870         if test "$explicit_python" = yes; then
1871             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1872         else
1873             error_exit "Meson not found.  Use --meson=/path/to/meson"
1874         fi
1875     fi
1876 else
1877     # Meson uses its own Python interpreter to invoke other Python scripts,
1878     # but the user wants to use the one they specified with --python.
1879     #
1880     # We do not want to override the distro Python interpreter (and sometimes
1881     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1882     # just require --meson=git|internal together with --python.
1883     if test "$explicit_python" = yes; then
1884         case "$meson" in
1885             git | internal) ;;
1886             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1887         esac
1888     fi
1889 fi
1890
1891 if test "$meson" = git; then
1892     git_submodules="${git_submodules} meson"
1893 fi
1894
1895 case "$meson" in
1896     git | internal)
1897         if ! $python -c 'import pkg_resources' > /dev/null 2>&1; then
1898             error_exit "Python setuptools not found"
1899         fi
1900         meson="$python ${source_path}/meson/meson.py"
1901         ;;
1902     *) meson=$(command -v "$meson") ;;
1903 esac
1904
1905 # Probe for ninja
1906
1907 if test -z "$ninja"; then
1908     for c in ninja ninja-build samu; do
1909         if has $c; then
1910             ninja=$(command -v "$c")
1911             break
1912         fi
1913     done
1914     if test -z "$ninja"; then
1915       error_exit "Cannot find Ninja"
1916     fi
1917 fi
1918
1919 # Check that the C compiler works. Doing this here before testing
1920 # the host CPU ensures that we had a valid CC to autodetect the
1921 # $cpu var (and we should bail right here if that's not the case).
1922 # It also allows the help message to be printed without a CC.
1923 write_c_skeleton;
1924 if compile_object ; then
1925   : C compiler works ok
1926 else
1927     error_exit "\"$cc\" either does not exist or does not work"
1928 fi
1929 if ! compile_prog ; then
1930     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1931 fi
1932
1933 # Consult white-list to determine whether to enable werror
1934 # by default.  Only enable by default for git builds
1935 if test -z "$werror" ; then
1936     if test -e "$source_path/.git" && \
1937         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1938         werror="yes"
1939     else
1940         werror="no"
1941     fi
1942 fi
1943
1944 if test "$bogus_os" = "yes"; then
1945     # Now that we know that we're not printing the help and that
1946     # the compiler works (so the results of the check_defines we used
1947     # to identify the OS are reliable), if we didn't recognize the
1948     # host OS we should stop now.
1949     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1950 fi
1951
1952 # Check whether the compiler matches our minimum requirements:
1953 cat > $TMPC << EOF
1954 #if defined(__clang_major__) && defined(__clang_minor__)
1955 # ifdef __apple_build_version__
1956 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
1957 #   error You need at least XCode Clang v5.1 to compile QEMU
1958 #  endif
1959 # else
1960 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
1961 #   error You need at least Clang v3.4 to compile QEMU
1962 #  endif
1963 # endif
1964 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1965 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
1966 #  error You need at least GCC v4.8 to compile QEMU
1967 # endif
1968 #else
1969 # error You either need GCC or Clang to compiler QEMU
1970 #endif
1971 int main (void) { return 0; }
1972 EOF
1973 if ! compile_prog "" "" ; then
1974     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
1975 fi
1976
1977 # Accumulate -Wfoo and -Wno-bar separately.
1978 # We will list all of the enable flags first, and the disable flags second.
1979 # Note that we do not add -Werror, because that would enable it for all
1980 # configure tests. If a configure test failed due to -Werror this would
1981 # just silently disable some features, so it's too error prone.
1982
1983 warn_flags=
1984 add_to warn_flags -Wold-style-declaration
1985 add_to warn_flags -Wold-style-definition
1986 add_to warn_flags -Wtype-limits
1987 add_to warn_flags -Wformat-security
1988 add_to warn_flags -Wformat-y2k
1989 add_to warn_flags -Winit-self
1990 add_to warn_flags -Wignored-qualifiers
1991 add_to warn_flags -Wempty-body
1992 add_to warn_flags -Wnested-externs
1993 add_to warn_flags -Wendif-labels
1994 add_to warn_flags -Wexpansion-to-defined
1995
1996 nowarn_flags=
1997 add_to nowarn_flags -Wno-initializer-overrides
1998 add_to nowarn_flags -Wno-missing-include-dirs
1999 add_to nowarn_flags -Wno-shift-negative-value
2000 add_to nowarn_flags -Wno-string-plus-int
2001 add_to nowarn_flags -Wno-typedef-redefinition
2002 add_to nowarn_flags -Wno-tautological-type-limit-compare
2003 add_to nowarn_flags -Wno-psabi
2004
2005 gcc_flags="$warn_flags $nowarn_flags"
2006
2007 cc_has_warning_flag() {
2008     write_c_skeleton;
2009
2010     # Use the positive sense of the flag when testing for -Wno-wombat
2011     # support (gcc will happily accept the -Wno- form of unknown
2012     # warning options).
2013     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2014     compile_prog "-Werror $optflag" ""
2015 }
2016
2017 for flag in $gcc_flags; do
2018     if cc_has_warning_flag $flag ; then
2019         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2020     fi
2021 done
2022
2023 if test "$stack_protector" != "no"; then
2024   cat > $TMPC << EOF
2025 int main(int argc, char *argv[])
2026 {
2027     char arr[64], *p = arr, *c = argv[0];
2028     while (*c) {
2029         *p++ = *c++;
2030     }
2031     return 0;
2032 }
2033 EOF
2034   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2035   sp_on=0
2036   for flag in $gcc_flags; do
2037     # We need to check both a compile and a link, since some compiler
2038     # setups fail only on a .c->.o compile and some only at link time
2039     if compile_object "-Werror $flag" &&
2040        compile_prog "-Werror $flag" ""; then
2041       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2042       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2043       sp_on=1
2044       break
2045     fi
2046   done
2047   if test "$stack_protector" = yes; then
2048     if test $sp_on = 0; then
2049       error_exit "Stack protector not supported"
2050     fi
2051   fi
2052 fi
2053
2054 # Disable -Wmissing-braces on older compilers that warn even for
2055 # the "universal" C zero initializer {0}.
2056 cat > $TMPC << EOF
2057 struct {
2058   int a[2];
2059 } x = {0};
2060 EOF
2061 if compile_object "-Werror" "" ; then
2062   :
2063 else
2064   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2065 fi
2066
2067 # Our module code doesn't support Windows
2068 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2069   error_exit "Modules are not available for Windows"
2070 fi
2071
2072 # module_upgrades is only reasonable if modules are enabled
2073 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2074   error_exit "Can't enable module-upgrades as Modules are not enabled"
2075 fi
2076
2077 # Static linking is not possible with modules or PIE
2078 if test "$static" = "yes" ; then
2079   if test "$modules" = "yes" ; then
2080     error_exit "static and modules are mutually incompatible"
2081   fi
2082 fi
2083
2084 # Unconditional check for compiler __thread support
2085   cat > $TMPC << EOF
2086 static __thread int tls_var;
2087 int main(void) { return tls_var; }
2088 EOF
2089
2090 if ! compile_prog "-Werror" "" ; then
2091     error_exit "Your compiler does not support the __thread specifier for " \
2092         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2093 fi
2094
2095 cat > $TMPC << EOF
2096
2097 #ifdef __linux__
2098 #  define THREAD __thread
2099 #else
2100 #  define THREAD
2101 #endif
2102 static THREAD int tls_var;
2103 int main(void) { return tls_var; }
2104 EOF
2105
2106 # Check we support --no-pie first; we will need this for building ROMs.
2107 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2108   CFLAGS_NOPIE="-fno-pie"
2109   LDFLAGS_NOPIE="-no-pie"
2110 fi
2111
2112 if test "$static" = "yes"; then
2113   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2114     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2115     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2116     pie="yes"
2117   elif test "$pie" = "yes"; then
2118     error_exit "-static-pie not available due to missing toolchain support"
2119   else
2120     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2121     pie="no"
2122   fi
2123 elif test "$pie" = "no"; then
2124   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2125   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
2126 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2127   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2128   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2129   pie="yes"
2130 elif test "$pie" = "yes"; then
2131   error_exit "PIE not available due to missing toolchain support"
2132 else
2133   echo "Disabling PIE due to missing toolchain support"
2134   pie="no"
2135 fi
2136
2137 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2138 # The combination is known as "full relro", because .got.plt is read-only too.
2139 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2140   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2141 fi
2142
2143 ##########################################
2144 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2145 # use i686 as default anyway, but for those that don't, an explicit
2146 # specification is necessary
2147
2148 if test "$cpu" = "i386"; then
2149   cat > $TMPC << EOF
2150 static int sfaa(int *ptr)
2151 {
2152   return __sync_fetch_and_and(ptr, 0);
2153 }
2154
2155 int main(void)
2156 {
2157   int val = 42;
2158   val = __sync_val_compare_and_swap(&val, 0, 1);
2159   sfaa(&val);
2160   return val;
2161 }
2162 EOF
2163   if ! compile_prog "" "" ; then
2164     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2165   fi
2166 fi
2167
2168 #########################################
2169 # Solaris specific configure tool chain decisions
2170
2171 if test "$solaris" = "yes" ; then
2172   if has ar; then
2173     :
2174   else
2175     if test -f /usr/ccs/bin/ar ; then
2176       error_exit "No path includes ar" \
2177           "Add /usr/ccs/bin to your path and rerun configure"
2178     fi
2179     error_exit "No path includes ar"
2180   fi
2181 fi
2182
2183 if test -z "${target_list+xxx}" ; then
2184     default_targets=yes
2185     for target in $default_target_list; do
2186         target_list="$target_list $target"
2187     done
2188     target_list="${target_list# }"
2189 else
2190     default_targets=no
2191     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2192     for target in $target_list; do
2193         # Check that we recognised the target name; this allows a more
2194         # friendly error message than if we let it fall through.
2195         case " $default_target_list " in
2196             *" $target "*)
2197                 ;;
2198             *)
2199                 error_exit "Unknown target name '$target'"
2200                 ;;
2201         esac
2202     done
2203 fi
2204
2205 for target in $target_list; do
2206     # if a deprecated target is enabled we note it here
2207     if echo "$deprecated_targets_list" | grep -q "$target"; then
2208         add_to deprecated_features $target
2209     fi
2210 done
2211
2212 # see if system emulation was really requested
2213 case " $target_list " in
2214   *"-softmmu "*) softmmu=yes
2215   ;;
2216   *) softmmu=no
2217   ;;
2218 esac
2219
2220 for target in $target_list; do
2221   case "$target" in
2222     arm-softmmu | aarch64-softmmu | i386-softmmu | x86_64-softmmu)
2223       edk2_blobs="yes"
2224       ;;
2225   esac
2226 done
2227 # The EDK2 binaries are compressed with bzip2
2228 if test "$edk2_blobs" = "yes" && ! has bzip2; then
2229   error_exit "The bzip2 program is required for building QEMU"
2230 fi
2231
2232 feature_not_found() {
2233   feature=$1
2234   remedy=$2
2235
2236   error_exit "User requested feature $feature" \
2237       "configure was not able to find it." \
2238       "$remedy"
2239 }
2240
2241 # ---
2242 # big/little endian test
2243 cat > $TMPC << EOF
2244 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2245 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2246 extern int foo(short *, short *);
2247 int main(int argc, char *argv[]) {
2248     return foo(big_endian, little_endian);
2249 }
2250 EOF
2251
2252 if compile_object ; then
2253     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2254         bigendian="yes"
2255     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2256         bigendian="no"
2257     else
2258         echo big/little test failed
2259     fi
2260 else
2261     echo big/little test failed
2262 fi
2263
2264 ##########################################
2265 # system tools
2266 if test -z "$want_tools"; then
2267     if test "$softmmu" = "no"; then
2268         want_tools=no
2269     else
2270         want_tools=yes
2271     fi
2272 fi
2273
2274 ##########################################
2275 # cocoa implies not SDL or GTK
2276 # (the cocoa UI code currently assumes it is always the active UI
2277 # and doesn't interact well with other UI frontend code)
2278 if test "$cocoa" = "enabled"; then
2279     if test "$sdl" = "enabled"; then
2280         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2281     fi
2282     if test "$gtk" = "yes"; then
2283         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2284     fi
2285     gtk=no
2286     sdl=disabled
2287 fi
2288
2289 # Some versions of Mac OS X incorrectly define SIZE_MAX
2290 cat > $TMPC << EOF
2291 #include <stdint.h>
2292 #include <stdio.h>
2293 int main(int argc, char *argv[]) {
2294     return printf("%zu", SIZE_MAX);
2295 }
2296 EOF
2297 have_broken_size_max=no
2298 if ! compile_object -Werror ; then
2299     have_broken_size_max=yes
2300 fi
2301
2302 ##########################################
2303 # L2TPV3 probe
2304
2305 cat > $TMPC <<EOF
2306 #include <sys/socket.h>
2307 #include <linux/ip.h>
2308 int main(void) { return sizeof(struct mmsghdr); }
2309 EOF
2310 if compile_prog "" "" ; then
2311   l2tpv3=yes
2312 else
2313   l2tpv3=no
2314 fi
2315
2316 if check_include "pty.h" ; then
2317   pty_h=yes
2318 else
2319   pty_h=no
2320 fi
2321
2322 cat > $TMPC <<EOF
2323 #include <sys/mman.h>
2324 int main(int argc, char *argv[]) {
2325     return mlockall(MCL_FUTURE);
2326 }
2327 EOF
2328 if compile_prog "" "" ; then
2329   have_mlockall=yes
2330 else
2331   have_mlockall=no
2332 fi
2333
2334 #########################################
2335 # vhost interdependencies and host support
2336
2337 # vhost backends
2338 test "$vhost_user" = "" && vhost_user=yes
2339 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2340   error_exit "vhost-user isn't available on win32"
2341 fi
2342 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2343 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2344   error_exit "vhost-vdpa is only available on Linux"
2345 fi
2346 test "$vhost_kernel" = "" && vhost_kernel=$linux
2347 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2348   error_exit "vhost-kernel is only available on Linux"
2349 fi
2350
2351 # vhost-kernel devices
2352 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2353 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2354   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2355 fi
2356 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2357 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2358   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2359 fi
2360
2361 # vhost-user backends
2362 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2363 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2364   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2365 fi
2366 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2367 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2368   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2369 fi
2370 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2371 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2372   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2373 fi
2374 #vhost-vdpa backends
2375 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2376 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2377   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2378 fi
2379
2380 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2381 if test "$vhost_net" = ""; then
2382   test "$vhost_net_user" = "yes" && vhost_net=yes
2383   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2384   test "$vhost_kernel" = "yes" && vhost_net=yes
2385 fi
2386
2387 ##########################################
2388 # pkg-config probe
2389
2390 if ! has "$pkg_config_exe"; then
2391   error_exit "pkg-config binary '$pkg_config_exe' not found"
2392 fi
2393
2394 ##########################################
2395 # NPTL probe
2396
2397 if test "$linux_user" = "yes"; then
2398   cat > $TMPC <<EOF
2399 #include <sched.h>
2400 #include <linux/futex.h>
2401 int main(void) {
2402 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2403 #error bork
2404 #endif
2405   return 0;
2406 }
2407 EOF
2408   if ! compile_object ; then
2409     feature_not_found "nptl" "Install glibc and linux kernel headers."
2410   fi
2411 fi
2412
2413 ##########################################
2414 # lzo check
2415
2416 if test "$lzo" != "no" ; then
2417     cat > $TMPC << EOF
2418 #include <lzo/lzo1x.h>
2419 int main(void) { lzo_version(); return 0; }
2420 EOF
2421     if compile_prog "" "-llzo2" ; then
2422         lzo_libs="-llzo2"
2423         lzo="yes"
2424     else
2425         if test "$lzo" = "yes"; then
2426             feature_not_found "liblzo2" "Install liblzo2 devel"
2427         fi
2428         lzo="no"
2429     fi
2430 fi
2431
2432 ##########################################
2433 # snappy check
2434
2435 if test "$snappy" != "no" ; then
2436     cat > $TMPC << EOF
2437 #include <snappy-c.h>
2438 int main(void) { snappy_max_compressed_length(4096); return 0; }
2439 EOF
2440     if compile_prog "" "-lsnappy" ; then
2441         snappy_libs='-lsnappy'
2442         snappy="yes"
2443     else
2444         if test "$snappy" = "yes"; then
2445             feature_not_found "libsnappy" "Install libsnappy devel"
2446         fi
2447         snappy="no"
2448     fi
2449 fi
2450
2451 ##########################################
2452 # bzip2 check
2453
2454 if test "$bzip2" != "no" ; then
2455     cat > $TMPC << EOF
2456 #include <bzlib.h>
2457 int main(void) { BZ2_bzlibVersion(); return 0; }
2458 EOF
2459     if compile_prog "" "-lbz2" ; then
2460         bzip2="yes"
2461     else
2462         if test "$bzip2" = "yes"; then
2463             feature_not_found "libbzip2" "Install libbzip2 devel"
2464         fi
2465         bzip2="no"
2466     fi
2467 fi
2468
2469 ##########################################
2470 # lzfse check
2471
2472 if test "$lzfse" != "no" ; then
2473     cat > $TMPC << EOF
2474 #include <lzfse.h>
2475 int main(void) { lzfse_decode_scratch_size(); return 0; }
2476 EOF
2477     if compile_prog "" "-llzfse" ; then
2478         lzfse="yes"
2479     else
2480         if test "$lzfse" = "yes"; then
2481             feature_not_found "lzfse" "Install lzfse devel"
2482         fi
2483         lzfse="no"
2484     fi
2485 fi
2486
2487 ##########################################
2488 # zstd check
2489
2490 if test "$zstd" != "no" ; then
2491     libzstd_minver="1.4.0"
2492     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2493         zstd_cflags="$($pkg_config --cflags libzstd)"
2494         zstd_libs="$($pkg_config --libs libzstd)"
2495         zstd="yes"
2496     else
2497         if test "$zstd" = "yes" ; then
2498             feature_not_found "libzstd" "Install libzstd devel"
2499         fi
2500         zstd="no"
2501     fi
2502 fi
2503
2504 ##########################################
2505 # libseccomp check
2506
2507 if test "$seccomp" != "no" ; then
2508     libseccomp_minver="2.3.0"
2509     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2510         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2511         seccomp_libs="$($pkg_config --libs libseccomp)"
2512         seccomp="yes"
2513     else
2514         if test "$seccomp" = "yes" ; then
2515             feature_not_found "libseccomp" \
2516                  "Install libseccomp devel >= $libseccomp_minver"
2517         fi
2518         seccomp="no"
2519     fi
2520 fi
2521
2522 ##########################################
2523 # xen probe
2524
2525 if test "$xen" != "disabled" ; then
2526   # Check whether Xen library path is specified via --extra-ldflags to avoid
2527   # overriding this setting with pkg-config output. If not, try pkg-config
2528   # to obtain all needed flags.
2529
2530   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2531      $pkg_config --exists xencontrol ; then
2532     xen_ctrl_version="$(printf '%d%02d%02d' \
2533       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2534     xen=enabled
2535     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2536     xen_pc="$xen_pc xenevtchn xendevicemodel"
2537     if $pkg_config --exists xentoolcore; then
2538       xen_pc="$xen_pc xentoolcore"
2539     fi
2540     xen_cflags="$($pkg_config --cflags $xen_pc)"
2541     xen_libs="$($pkg_config --libs $xen_pc)"
2542   else
2543
2544     xen_libs="-lxenstore -lxenctrl"
2545     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2546
2547     # First we test whether Xen headers and libraries are available.
2548     # If no, we are done and there is no Xen support.
2549     # If yes, more tests are run to detect the Xen version.
2550
2551     # Xen (any)
2552     cat > $TMPC <<EOF
2553 #include <xenctrl.h>
2554 int main(void) {
2555   return 0;
2556 }
2557 EOF
2558     if ! compile_prog "" "$xen_libs" ; then
2559       # Xen not found
2560       if test "$xen" = "enabled" ; then
2561         feature_not_found "xen" "Install xen devel"
2562       fi
2563       xen=disabled
2564
2565     # Xen unstable
2566     elif
2567         cat > $TMPC <<EOF &&
2568 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2569 #define __XEN_TOOLS__
2570 #include <xendevicemodel.h>
2571 #include <xenforeignmemory.h>
2572 int main(void) {
2573   xendevicemodel_handle *xd;
2574   xenforeignmemory_handle *xfmem;
2575
2576   xd = xendevicemodel_open(0, 0);
2577   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2578
2579   xfmem = xenforeignmemory_open(0, 0);
2580   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2581
2582   return 0;
2583 }
2584 EOF
2585         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2586       then
2587       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2588       xen_ctrl_version=41100
2589       xen=enabled
2590     elif
2591         cat > $TMPC <<EOF &&
2592 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2593 #include <xenforeignmemory.h>
2594 #include <xentoolcore.h>
2595 int main(void) {
2596   xenforeignmemory_handle *xfmem;
2597
2598   xfmem = xenforeignmemory_open(0, 0);
2599   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2600   xentoolcore_restrict_all(0);
2601
2602   return 0;
2603 }
2604 EOF
2605         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2606       then
2607       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2608       xen_ctrl_version=41000
2609       xen=enabled
2610     elif
2611         cat > $TMPC <<EOF &&
2612 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2613 #define __XEN_TOOLS__
2614 #include <xendevicemodel.h>
2615 int main(void) {
2616   xendevicemodel_handle *xd;
2617
2618   xd = xendevicemodel_open(0, 0);
2619   xendevicemodel_close(xd);
2620
2621   return 0;
2622 }
2623 EOF
2624         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2625       then
2626       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2627       xen_ctrl_version=40900
2628       xen=enabled
2629     elif
2630         cat > $TMPC <<EOF &&
2631 /*
2632  * If we have stable libs the we don't want the libxc compat
2633  * layers, regardless of what CFLAGS we may have been given.
2634  *
2635  * Also, check if xengnttab_grant_copy_segment_t is defined and
2636  * grant copy operation is implemented.
2637  */
2638 #undef XC_WANT_COMPAT_EVTCHN_API
2639 #undef XC_WANT_COMPAT_GNTTAB_API
2640 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2641 #include <xenctrl.h>
2642 #include <xenstore.h>
2643 #include <xenevtchn.h>
2644 #include <xengnttab.h>
2645 #include <xenforeignmemory.h>
2646 #include <stdint.h>
2647 #include <xen/hvm/hvm_info_table.h>
2648 #if !defined(HVM_MAX_VCPUS)
2649 # error HVM_MAX_VCPUS not defined
2650 #endif
2651 int main(void) {
2652   xc_interface *xc = NULL;
2653   xenforeignmemory_handle *xfmem;
2654   xenevtchn_handle *xe;
2655   xengnttab_handle *xg;
2656   xengnttab_grant_copy_segment_t* seg = NULL;
2657
2658   xs_daemon_open();
2659
2660   xc = xc_interface_open(0, 0, 0);
2661   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2662   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2663   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2664   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2665
2666   xfmem = xenforeignmemory_open(0, 0);
2667   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2668
2669   xe = xenevtchn_open(0, 0);
2670   xenevtchn_fd(xe);
2671
2672   xg = xengnttab_open(0, 0);
2673   xengnttab_grant_copy(xg, 0, seg);
2674
2675   return 0;
2676 }
2677 EOF
2678         compile_prog "" "$xen_libs $xen_stable_libs"
2679       then
2680       xen_ctrl_version=40800
2681       xen=enabled
2682     elif
2683         cat > $TMPC <<EOF &&
2684 /*
2685  * If we have stable libs the we don't want the libxc compat
2686  * layers, regardless of what CFLAGS we may have been given.
2687  */
2688 #undef XC_WANT_COMPAT_EVTCHN_API
2689 #undef XC_WANT_COMPAT_GNTTAB_API
2690 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2691 #include <xenctrl.h>
2692 #include <xenstore.h>
2693 #include <xenevtchn.h>
2694 #include <xengnttab.h>
2695 #include <xenforeignmemory.h>
2696 #include <stdint.h>
2697 #include <xen/hvm/hvm_info_table.h>
2698 #if !defined(HVM_MAX_VCPUS)
2699 # error HVM_MAX_VCPUS not defined
2700 #endif
2701 int main(void) {
2702   xc_interface *xc = NULL;
2703   xenforeignmemory_handle *xfmem;
2704   xenevtchn_handle *xe;
2705   xengnttab_handle *xg;
2706
2707   xs_daemon_open();
2708
2709   xc = xc_interface_open(0, 0, 0);
2710   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2711   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2712   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2713   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2714
2715   xfmem = xenforeignmemory_open(0, 0);
2716   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2717
2718   xe = xenevtchn_open(0, 0);
2719   xenevtchn_fd(xe);
2720
2721   xg = xengnttab_open(0, 0);
2722   xengnttab_map_grant_ref(xg, 0, 0, 0);
2723
2724   return 0;
2725 }
2726 EOF
2727         compile_prog "" "$xen_libs $xen_stable_libs"
2728       then
2729       xen_ctrl_version=40701
2730       xen=enabled
2731
2732     # Xen 4.6
2733     elif
2734         cat > $TMPC <<EOF &&
2735 #include <xenctrl.h>
2736 #include <xenstore.h>
2737 #include <stdint.h>
2738 #include <xen/hvm/hvm_info_table.h>
2739 #if !defined(HVM_MAX_VCPUS)
2740 # error HVM_MAX_VCPUS not defined
2741 #endif
2742 int main(void) {
2743   xc_interface *xc;
2744   xs_daemon_open();
2745   xc = xc_interface_open(0, 0, 0);
2746   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2747   xc_gnttab_open(NULL, 0);
2748   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2749   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2750   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2751   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2752   return 0;
2753 }
2754 EOF
2755         compile_prog "" "$xen_libs"
2756       then
2757       xen_ctrl_version=40600
2758       xen=enabled
2759
2760     # Xen 4.5
2761     elif
2762         cat > $TMPC <<EOF &&
2763 #include <xenctrl.h>
2764 #include <xenstore.h>
2765 #include <stdint.h>
2766 #include <xen/hvm/hvm_info_table.h>
2767 #if !defined(HVM_MAX_VCPUS)
2768 # error HVM_MAX_VCPUS not defined
2769 #endif
2770 int main(void) {
2771   xc_interface *xc;
2772   xs_daemon_open();
2773   xc = xc_interface_open(0, 0, 0);
2774   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2775   xc_gnttab_open(NULL, 0);
2776   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2777   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2778   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2779   return 0;
2780 }
2781 EOF
2782         compile_prog "" "$xen_libs"
2783       then
2784       xen_ctrl_version=40500
2785       xen=enabled
2786
2787     elif
2788         cat > $TMPC <<EOF &&
2789 #include <xenctrl.h>
2790 #include <xenstore.h>
2791 #include <stdint.h>
2792 #include <xen/hvm/hvm_info_table.h>
2793 #if !defined(HVM_MAX_VCPUS)
2794 # error HVM_MAX_VCPUS not defined
2795 #endif
2796 int main(void) {
2797   xc_interface *xc;
2798   xs_daemon_open();
2799   xc = xc_interface_open(0, 0, 0);
2800   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2801   xc_gnttab_open(NULL, 0);
2802   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2803   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2804   return 0;
2805 }
2806 EOF
2807         compile_prog "" "$xen_libs"
2808       then
2809       xen_ctrl_version=40200
2810       xen=enabled
2811
2812     else
2813       if test "$xen" = "enabled" ; then
2814         feature_not_found "xen (unsupported version)" \
2815                           "Install a supported xen (xen 4.2 or newer)"
2816       fi
2817       xen=disabled
2818     fi
2819
2820     if test "$xen" = enabled; then
2821       if test $xen_ctrl_version -ge 40701  ; then
2822         xen_libs="$xen_libs $xen_stable_libs "
2823       fi
2824     fi
2825   fi
2826 fi
2827
2828 if test "$xen_pci_passthrough" != "disabled"; then
2829   if test "$xen" = "enabled" && test "$linux" = "yes"; then
2830     xen_pci_passthrough=enabled
2831   else
2832     if test "$xen_pci_passthrough" = "enabled"; then
2833       error_exit "User requested feature Xen PCI Passthrough" \
2834           " but this feature requires /sys from Linux"
2835     fi
2836     xen_pci_passthrough=disabled
2837   fi
2838 fi
2839
2840 ##########################################
2841 # gettext probe
2842 if test "$gettext" != "false" ; then
2843   if has xgettext; then
2844     gettext=true
2845   else
2846     if test "$gettext" = "true" ; then
2847       feature_not_found "gettext" "Install xgettext binary"
2848     fi
2849     gettext=false
2850   fi
2851 fi
2852
2853 ##########################################
2854 # X11 probe
2855 if $pkg_config --exists "x11"; then
2856     have_x11=yes
2857     x11_cflags=$($pkg_config --cflags x11)
2858     x11_libs=$($pkg_config --libs x11)
2859 fi
2860
2861 ##########################################
2862 # GTK probe
2863
2864 if test "$gtk" != "no"; then
2865     gtkpackage="gtk+-3.0"
2866     gtkx11package="gtk+-x11-3.0"
2867     gtkversion="3.22.0"
2868     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2869         gtk_cflags=$($pkg_config --cflags $gtkpackage)
2870         gtk_libs=$($pkg_config --libs $gtkpackage)
2871         gtk_version=$($pkg_config --modversion $gtkpackage)
2872         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2873             need_x11=yes
2874             gtk_cflags="$gtk_cflags $x11_cflags"
2875             gtk_libs="$gtk_libs $x11_libs"
2876         fi
2877         gtk="yes"
2878     elif test "$gtk" = "yes"; then
2879         feature_not_found "gtk" "Install gtk3-devel"
2880     else
2881         gtk="no"
2882     fi
2883 fi
2884
2885
2886 ##########################################
2887 # GNUTLS probe
2888
2889 if test "$gnutls" != "no"; then
2890     pass="no"
2891     if $pkg_config --exists "gnutls >= 3.1.18"; then
2892         gnutls_cflags=$($pkg_config --cflags gnutls)
2893         gnutls_libs=$($pkg_config --libs gnutls)
2894         # Packaging for the static libraries is not always correct.
2895         # At least ubuntu 18.04 ships only shared libraries.
2896         write_c_skeleton
2897         if compile_prog "" "$gnutls_libs" ; then
2898             pass="yes"
2899         fi
2900     fi
2901     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2902         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2903     else
2904         gnutls="$pass"
2905     fi
2906 fi
2907
2908
2909 # If user didn't give a --disable/enable-gcrypt flag,
2910 # then mark as disabled if user requested nettle
2911 # explicitly
2912 if test -z "$gcrypt"
2913 then
2914     if test "$nettle" = "yes"
2915     then
2916         gcrypt="no"
2917     fi
2918 fi
2919
2920 # If user didn't give a --disable/enable-nettle flag,
2921 # then mark as disabled if user requested gcrypt
2922 # explicitly
2923 if test -z "$nettle"
2924 then
2925     if test "$gcrypt" = "yes"
2926     then
2927         nettle="no"
2928     fi
2929 fi
2930
2931 has_libgcrypt() {
2932     if ! has "libgcrypt-config"
2933     then
2934         return 1
2935     fi
2936
2937     if test -n "$cross_prefix"
2938     then
2939         host=$(libgcrypt-config --host)
2940         if test "$host-" != $cross_prefix
2941         then
2942             return 1
2943         fi
2944     fi
2945
2946     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2947     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2948
2949     if test $maj != 1 || test $min -lt 5
2950     then
2951        return 1
2952     fi
2953
2954     return 0
2955 }
2956
2957
2958 if test "$nettle" != "no"; then
2959     pass="no"
2960     if $pkg_config --exists "nettle >= 2.7.1"; then
2961         nettle_cflags=$($pkg_config --cflags nettle)
2962         nettle_libs=$($pkg_config --libs nettle)
2963         nettle_version=$($pkg_config --modversion nettle)
2964         # Link test to make sure the given libraries work (e.g for static).
2965         write_c_skeleton
2966         if compile_prog "" "$nettle_libs" ; then
2967             if test -z "$gcrypt"; then
2968                gcrypt="no"
2969             fi
2970             pass="yes"
2971         fi
2972     fi
2973     if test "$pass" = "yes"
2974     then
2975         cat > $TMPC << EOF
2976 #include <nettle/xts.h>
2977 int main(void) {
2978   return 0;
2979 }
2980 EOF
2981         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2982             nettle_xts=yes
2983             qemu_private_xts=no
2984         fi
2985     fi
2986     if test "$pass" = "no" && test "$nettle" = "yes"; then
2987         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2988     else
2989         nettle="$pass"
2990     fi
2991 fi
2992
2993 if test "$gcrypt" != "no"; then
2994     pass="no"
2995     if has_libgcrypt; then
2996         gcrypt_cflags=$(libgcrypt-config --cflags)
2997         gcrypt_libs=$(libgcrypt-config --libs)
2998         # Debian has removed -lgpg-error from libgcrypt-config
2999         # as it "spreads unnecessary dependencies" which in
3000         # turn breaks static builds...
3001         if test "$static" = "yes"
3002         then
3003             gcrypt_libs="$gcrypt_libs -lgpg-error"
3004         fi
3005
3006         # Link test to make sure the given libraries work (e.g for static).
3007         write_c_skeleton
3008         if compile_prog "" "$gcrypt_libs" ; then
3009             pass="yes"
3010         fi
3011     fi
3012     if test "$pass" = "yes"; then
3013         gcrypt="yes"
3014         cat > $TMPC << EOF
3015 #include <gcrypt.h>
3016 int main(void) {
3017   gcry_mac_hd_t handle;
3018   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3019                 GCRY_MAC_FLAG_SECURE, NULL);
3020   return 0;
3021 }
3022 EOF
3023         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3024             gcrypt_hmac=yes
3025         fi
3026         cat > $TMPC << EOF
3027 #include <gcrypt.h>
3028 int main(void) {
3029   gcry_cipher_hd_t handle;
3030   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3031   return 0;
3032 }
3033 EOF
3034         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3035             gcrypt_xts=yes
3036             qemu_private_xts=no
3037         fi
3038     elif test "$gcrypt" = "yes"; then
3039         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3040     else
3041         gcrypt="no"
3042     fi
3043 fi
3044
3045
3046 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3047 then
3048     error_exit "Only one of gcrypt & nettle can be enabled"
3049 fi
3050
3051 ##########################################
3052 # libtasn1 - only for the TLS creds/session test suite
3053
3054 tasn1=yes
3055 tasn1_cflags=""
3056 tasn1_libs=""
3057 if $pkg_config --exists "libtasn1"; then
3058     tasn1_cflags=$($pkg_config --cflags libtasn1)
3059     tasn1_libs=$($pkg_config --libs libtasn1)
3060 else
3061     tasn1=no
3062 fi
3063
3064
3065 ##########################################
3066 # PAM probe
3067
3068 if test "$auth_pam" != "no"; then
3069     cat > $TMPC <<EOF
3070 #include <security/pam_appl.h>
3071 #include <stdio.h>
3072 int main(void) {
3073    const char *service_name = "qemu";
3074    const char *user = "frank";
3075    const struct pam_conv pam_conv = { 0 };
3076    pam_handle_t *pamh = NULL;
3077    pam_start(service_name, user, &pam_conv, &pamh);
3078    return 0;
3079 }
3080 EOF
3081     if compile_prog "" "-lpam" ; then
3082         auth_pam=yes
3083     else
3084         if test "$auth_pam" = "yes"; then
3085             feature_not_found "PAM" "Install PAM development package"
3086         else
3087             auth_pam=no
3088         fi
3089     fi
3090 fi
3091
3092 ##########################################
3093 # getifaddrs (for tests/test-io-channel-socket )
3094
3095 have_ifaddrs_h=yes
3096 if ! check_include "ifaddrs.h" ; then
3097   have_ifaddrs_h=no
3098 fi
3099
3100 #########################################
3101 # libdrm check
3102 have_drm_h=no
3103 if check_include "libdrm/drm.h" ; then
3104     have_drm_h=yes
3105 fi
3106
3107 #########################################
3108 # sys/signal.h check
3109 have_sys_signal_h=no
3110 if check_include "sys/signal.h" ; then
3111   have_sys_signal_h=yes
3112 fi
3113
3114 ##########################################
3115 # VTE probe
3116
3117 if test "$vte" != "no"; then
3118     vteminversion="0.32.0"
3119     if $pkg_config --exists "vte-2.91"; then
3120       vtepackage="vte-2.91"
3121     else
3122       vtepackage="vte-2.90"
3123     fi
3124     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3125         vte_cflags=$($pkg_config --cflags $vtepackage)
3126         vte_libs=$($pkg_config --libs $vtepackage)
3127         vteversion=$($pkg_config --modversion $vtepackage)
3128         vte="yes"
3129     elif test "$vte" = "yes"; then
3130         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3131     else
3132         vte="no"
3133     fi
3134 fi
3135
3136 ##########################################
3137 # RDMA needs OpenFabrics libraries
3138 if test "$rdma" != "no" ; then
3139   cat > $TMPC <<EOF
3140 #include <rdma/rdma_cma.h>
3141 int main(void) { return 0; }
3142 EOF
3143   rdma_libs="-lrdmacm -libverbs -libumad"
3144   if compile_prog "" "$rdma_libs" ; then
3145     rdma="yes"
3146   else
3147     if test "$rdma" = "yes" ; then
3148         error_exit \
3149             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3150             " Your options:" \
3151             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3152             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3153             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3154     fi
3155     rdma="no"
3156   fi
3157 fi
3158
3159 ##########################################
3160 # PVRDMA detection
3161
3162 cat > $TMPC <<EOF &&
3163 #include <sys/mman.h>
3164
3165 int
3166 main(void)
3167 {
3168     char buf = 0;
3169     void *addr = &buf;
3170     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3171
3172     return 0;
3173 }
3174 EOF
3175
3176 if test "$rdma" = "yes" ; then
3177     case "$pvrdma" in
3178     "")
3179         if compile_prog "" ""; then
3180             pvrdma="yes"
3181         else
3182             pvrdma="no"
3183         fi
3184         ;;
3185     "yes")
3186         if ! compile_prog "" ""; then
3187             error_exit "PVRDMA is not supported since mremap is not implemented"
3188         fi
3189         pvrdma="yes"
3190         ;;
3191     "no")
3192         pvrdma="no"
3193         ;;
3194     esac
3195 else
3196     if test "$pvrdma" = "yes" ; then
3197         error_exit "PVRDMA requires rdma suppport"
3198     fi
3199     pvrdma="no"
3200 fi
3201
3202 # Let's see if enhanced reg_mr is supported
3203 if test "$pvrdma" = "yes" ; then
3204
3205 cat > $TMPC <<EOF &&
3206 #include <infiniband/verbs.h>
3207
3208 int
3209 main(void)
3210 {
3211     struct ibv_mr *mr;
3212     struct ibv_pd *pd = NULL;
3213     size_t length = 10;
3214     uint64_t iova = 0;
3215     int access = 0;
3216     void *addr = NULL;
3217
3218     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3219
3220     ibv_dereg_mr(mr);
3221
3222     return 0;
3223 }
3224 EOF
3225     if ! compile_prog "" "-libverbs"; then
3226         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3227     fi
3228 fi
3229
3230 ##########################################
3231 # xfsctl() probe, used for file-posix.c
3232 if test "$xfs" != "no" ; then
3233   cat > $TMPC << EOF
3234 #include <stddef.h>  /* NULL */
3235 #include <xfs/xfs.h>
3236 int main(void)
3237 {
3238     xfsctl(NULL, 0, 0, NULL);
3239     return 0;
3240 }
3241 EOF
3242   if compile_prog "" "" ; then
3243     xfs="yes"
3244   else
3245     if test "$xfs" = "yes" ; then
3246       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3247     fi
3248     xfs=no
3249   fi
3250 fi
3251
3252 ##########################################
3253 # vde libraries probe
3254 if test "$vde" != "no" ; then
3255   vde_libs="-lvdeplug"
3256   cat > $TMPC << EOF
3257 #include <libvdeplug.h>
3258 int main(void)
3259 {
3260     struct vde_open_args a = {0, 0, 0};
3261     char s[] = "";
3262     vde_open(s, s, &a);
3263     return 0;
3264 }
3265 EOF
3266   if compile_prog "" "$vde_libs" ; then
3267     vde=yes
3268   else
3269     if test "$vde" = "yes" ; then
3270       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3271     fi
3272     vde=no
3273   fi
3274 fi
3275
3276 ##########################################
3277 # netmap support probe
3278 # Apart from looking for netmap headers, we make sure that the host API version
3279 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3280 # a minor/major version number. Minor new features will be marked with values up
3281 # to 15, and if something happens that requires a change to the backend we will
3282 # move above 15, submit the backend fixes and modify this two bounds.
3283 if test "$netmap" != "no" ; then
3284   cat > $TMPC << EOF
3285 #include <inttypes.h>
3286 #include <net/if.h>
3287 #include <net/netmap.h>
3288 #include <net/netmap_user.h>
3289 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3290 #error
3291 #endif
3292 int main(void) { return 0; }
3293 EOF
3294   if compile_prog "" "" ; then
3295     netmap=yes
3296   else
3297     if test "$netmap" = "yes" ; then
3298       feature_not_found "netmap"
3299     fi
3300     netmap=no
3301   fi
3302 fi
3303
3304 ##########################################
3305 # libcap-ng library probe
3306 if test "$cap_ng" != "no" ; then
3307   cap_libs="-lcap-ng"
3308   cat > $TMPC << EOF
3309 #include <cap-ng.h>
3310 int main(void)
3311 {
3312     capng_capability_to_name(CAPNG_EFFECTIVE);
3313     return 0;
3314 }
3315 EOF
3316   if compile_prog "" "$cap_libs" ; then
3317     cap_ng=yes
3318   else
3319     if test "$cap_ng" = "yes" ; then
3320       feature_not_found "cap_ng" "Install libcap-ng devel"
3321     fi
3322     cap_ng=no
3323   fi
3324 fi
3325
3326 ##########################################
3327 # Sound support libraries probe
3328
3329 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3330 for drv in $audio_drv_list; do
3331     case $drv in
3332     alsa | try-alsa)
3333     if $pkg_config alsa --exists; then
3334         alsa_libs=$($pkg_config alsa --libs)
3335         alsa_cflags=$($pkg_config alsa --cflags)
3336         alsa=yes
3337         if test "$drv" = "try-alsa"; then
3338             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3339         fi
3340     else
3341         if test "$drv" = "try-alsa"; then
3342             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3343         else
3344             error_exit "$drv check failed" \
3345                 "Make sure to have the $drv libs and headers installed."
3346         fi
3347     fi
3348     ;;
3349
3350     pa | try-pa)
3351     if $pkg_config libpulse --exists; then
3352         libpulse=yes
3353         pulse_libs=$($pkg_config libpulse --libs)
3354         pulse_cflags=$($pkg_config libpulse --cflags)
3355         if test "$drv" = "try-pa"; then
3356             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3357         fi
3358     else
3359         if test "$drv" = "try-pa"; then
3360             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3361         else
3362             error_exit "$drv check failed" \
3363                 "Make sure to have the $drv libs and headers installed."
3364         fi
3365     fi
3366     ;;
3367
3368     sdl)
3369     if test "$sdl" = "no"; then
3370         error_exit "sdl not found or disabled, can not use sdl audio driver"
3371     fi
3372     ;;
3373
3374     try-sdl)
3375     if test "$sdl" = "no"; then
3376         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3377     else
3378         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3379     fi
3380     ;;
3381
3382     coreaudio)
3383       coreaudio_libs="-framework CoreAudio"
3384     ;;
3385
3386     dsound)
3387       dsound_libs="-lole32 -ldxguid"
3388       audio_win_int="yes"
3389     ;;
3390
3391     oss)
3392       oss_libs="$oss_lib"
3393     ;;
3394
3395     jack | try-jack)
3396     if $pkg_config jack --exists; then
3397         libjack=yes
3398         jack_libs=$($pkg_config jack --libs)
3399         if test "$drv" = "try-jack"; then
3400             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3401         fi
3402     else
3403         if test "$drv" = "try-jack"; then
3404             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3405         else
3406             error_exit "$drv check failed" \
3407                 "Make sure to have the $drv libs and headers installed."
3408         fi
3409     fi
3410     ;;
3411
3412     *)
3413     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3414         error_exit "Unknown driver '$drv' selected" \
3415             "Possible drivers are: $audio_possible_drivers"
3416     }
3417     ;;
3418     esac
3419 done
3420
3421 ##########################################
3422 # BrlAPI probe
3423
3424 if test "$brlapi" != "no" ; then
3425   brlapi_libs="-lbrlapi"
3426   cat > $TMPC << EOF
3427 #include <brlapi.h>
3428 #include <stddef.h>
3429 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3430 EOF
3431   if compile_prog "" "$brlapi_libs" ; then
3432     brlapi=yes
3433   else
3434     if test "$brlapi" = "yes" ; then
3435       feature_not_found "brlapi" "Install brlapi devel"
3436     fi
3437     brlapi=no
3438   fi
3439 fi
3440
3441 ##########################################
3442 # curl probe
3443 if test "$curl" != "no" ; then
3444   if $pkg_config libcurl --exists; then
3445     curlconfig="$pkg_config libcurl"
3446   else
3447     curlconfig=curl-config
3448   fi
3449   cat > $TMPC << EOF
3450 #include <curl/curl.h>
3451 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3452 EOF
3453   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3454   curl_libs=$($curlconfig --libs 2>/dev/null)
3455   if compile_prog "$curl_cflags" "$curl_libs" ; then
3456     curl=yes
3457   else
3458     if test "$curl" = "yes" ; then
3459       feature_not_found "curl" "Install libcurl devel"
3460     fi
3461     curl=no
3462   fi
3463 fi # test "$curl"
3464
3465 ##########################################
3466 # glib support probe
3467
3468 glib_req_ver=2.48
3469 glib_modules=gthread-2.0
3470 if test "$modules" = yes; then
3471     glib_modules="$glib_modules gmodule-export-2.0"
3472 fi
3473 if test "$plugins" = yes; then
3474     glib_modules="$glib_modules gmodule-2.0"
3475 fi
3476
3477 for i in $glib_modules; do
3478     if $pkg_config --atleast-version=$glib_req_ver $i; then
3479         glib_cflags=$($pkg_config --cflags $i)
3480         glib_libs=$($pkg_config --libs $i)
3481     else
3482         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3483     fi
3484 done
3485
3486 # This workaround is required due to a bug in pkg-config file for glib as it
3487 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3488
3489 if test "$static" = yes && test "$mingw32" = yes; then
3490     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3491 fi
3492
3493 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3494     gio=yes
3495     gio_cflags=$($pkg_config --cflags gio-2.0)
3496     gio_libs=$($pkg_config --libs gio-2.0)
3497     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3498     if [ ! -x "$gdbus_codegen" ]; then
3499         gdbus_codegen=
3500     fi
3501 else
3502     gio=no
3503 fi
3504
3505 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3506     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3507     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3508 fi
3509
3510 # Sanity check that the current size_t matches the
3511 # size that glib thinks it should be. This catches
3512 # problems on multi-arch where people try to build
3513 # 32-bit QEMU while pointing at 64-bit glib headers
3514 cat > $TMPC <<EOF
3515 #include <glib.h>
3516 #include <unistd.h>
3517
3518 #define QEMU_BUILD_BUG_ON(x) \
3519   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3520
3521 int main(void) {
3522    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3523    return 0;
3524 }
3525 EOF
3526
3527 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3528     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3529                "You probably need to set PKG_CONFIG_LIBDIR"\
3530                "to point to the right pkg-config files for your"\
3531                "build target"
3532 fi
3533
3534 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3535 cat > $TMPC << EOF
3536 #include <glib.h>
3537 int main(void) { return 0; }
3538 EOF
3539 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3540     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3541         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3542         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3543     fi
3544 fi
3545
3546 # Silence clang warnings triggered by glib < 2.57.2
3547 cat > $TMPC << EOF
3548 #include <glib.h>
3549 typedef struct Foo {
3550     int i;
3551 } Foo;
3552 static void foo_free(Foo *f)
3553 {
3554     g_free(f);
3555 }
3556 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3557 int main(void) { return 0; }
3558 EOF
3559 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3560     if cc_has_warning_flag "-Wno-unused-function"; then
3561         glib_cflags="$glib_cflags -Wno-unused-function"
3562         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3563     fi
3564 fi
3565
3566 ##########################################
3567 # SHA command probe for modules
3568 if test "$modules" = yes; then
3569     shacmd_probe="sha1sum sha1 shasum"
3570     for c in $shacmd_probe; do
3571         if has $c; then
3572             shacmd="$c"
3573             break
3574         fi
3575     done
3576     if test "$shacmd" = ""; then
3577         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3578     fi
3579 fi
3580
3581 ##########################################
3582 # pthread probe
3583 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3584
3585 pthread=no
3586 cat > $TMPC << EOF
3587 #include <pthread.h>
3588 static void *f(void *p) { return NULL; }
3589 int main(void) {
3590   pthread_t thread;
3591   pthread_create(&thread, 0, f, 0);
3592   return 0;
3593 }
3594 EOF
3595 if compile_prog "" "" ; then
3596   pthread=yes
3597 else
3598   for pthread_lib in $PTHREADLIBS_LIST; do
3599     if compile_prog "" "$pthread_lib" ; then
3600       pthread=yes
3601       found=no
3602       for lib_entry in $LIBS; do
3603         if test "$lib_entry" = "$pthread_lib"; then
3604           found=yes
3605           break
3606         fi
3607       done
3608       if test "$found" = "no"; then
3609         LIBS="$pthread_lib $LIBS"
3610       fi
3611       PTHREAD_LIB="$pthread_lib"
3612       break
3613     fi
3614   done
3615 fi
3616
3617 if test "$mingw32" != yes && test "$pthread" = no; then
3618   error_exit "pthread check failed" \
3619       "Make sure to have the pthread libs and headers installed."
3620 fi
3621
3622 # check for pthread_setname_np with thread id
3623 pthread_setname_np_w_tid=no
3624 cat > $TMPC << EOF
3625 #include <pthread.h>
3626
3627 static void *f(void *p) { return NULL; }
3628 int main(void)
3629 {
3630     pthread_t thread;
3631     pthread_create(&thread, 0, f, 0);
3632     pthread_setname_np(thread, "QEMU");
3633     return 0;
3634 }
3635 EOF
3636 if compile_prog "" "$pthread_lib" ; then
3637   pthread_setname_np_w_tid=yes
3638 fi
3639
3640 # check for pthread_setname_np without thread id
3641 pthread_setname_np_wo_tid=no
3642 cat > $TMPC << EOF
3643 #include <pthread.h>
3644
3645 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3646 int main(void)
3647 {
3648     pthread_t thread;
3649     pthread_create(&thread, 0, f, 0);
3650     return 0;
3651 }
3652 EOF
3653 if compile_prog "" "$pthread_lib" ; then
3654   pthread_setname_np_wo_tid=yes
3655 fi
3656
3657 ##########################################
3658 # rbd probe
3659 if test "$rbd" != "no" ; then
3660   cat > $TMPC <<EOF
3661 #include <stdio.h>
3662 #include <rbd/librbd.h>
3663 int main(void) {
3664     rados_t cluster;
3665     rados_create(&cluster, NULL);
3666     return 0;
3667 }
3668 EOF
3669   rbd_libs="-lrbd -lrados"
3670   if compile_prog "" "$rbd_libs" ; then
3671     rbd=yes
3672   else
3673     if test "$rbd" = "yes" ; then
3674       feature_not_found "rados block device" "Install librbd/ceph devel"
3675     fi
3676     rbd=no
3677   fi
3678 fi
3679
3680 ##########################################
3681 # libssh probe
3682 if test "$libssh" != "no" ; then
3683   if $pkg_config --exists libssh; then
3684     libssh_cflags=$($pkg_config libssh --cflags)
3685     libssh_libs=$($pkg_config libssh --libs)
3686     libssh=yes
3687   else
3688     if test "$libssh" = "yes" ; then
3689       error_exit "libssh required for --enable-libssh"
3690     fi
3691     libssh=no
3692   fi
3693 fi
3694
3695 ##########################################
3696 # Check for libssh 0.8
3697 # This is done like this instead of using the LIBSSH_VERSION_* and
3698 # SSH_VERSION_* macros because some distributions in the past shipped
3699 # snapshots of the future 0.8 from Git, and those snapshots did not
3700 # have updated version numbers (still referring to 0.7.0).
3701
3702 if test "$libssh" = "yes"; then
3703   cat > $TMPC <<EOF
3704 #include <libssh/libssh.h>
3705 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3706 EOF
3707   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3708     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3709   fi
3710 fi
3711
3712 ##########################################
3713 # linux-aio probe
3714
3715 if test "$linux_aio" != "no" ; then
3716   cat > $TMPC <<EOF
3717 #include <libaio.h>
3718 #include <sys/eventfd.h>
3719 #include <stddef.h>
3720 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3721 EOF
3722   if compile_prog "" "-laio" ; then
3723     linux_aio=yes
3724   else
3725     if test "$linux_aio" = "yes" ; then
3726       feature_not_found "linux AIO" "Install libaio devel"
3727     fi
3728     linux_aio=no
3729   fi
3730 fi
3731 ##########################################
3732 # linux-io-uring probe
3733
3734 if test "$linux_io_uring" != "no" ; then
3735   if $pkg_config liburing; then
3736     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3737     linux_io_uring_libs=$($pkg_config --libs liburing)
3738     linux_io_uring=yes
3739   else
3740     if test "$linux_io_uring" = "yes" ; then
3741       feature_not_found "linux io_uring" "Install liburing devel"
3742     fi
3743     linux_io_uring=no
3744   fi
3745 fi
3746
3747 ##########################################
3748 # TPM emulation is only on POSIX
3749
3750 if test "$tpm" = ""; then
3751   if test "$mingw32" = "yes"; then
3752     tpm=no
3753   else
3754     tpm=yes
3755   fi
3756 elif test "$tpm" = "yes"; then
3757   if test "$mingw32" = "yes" ; then
3758     error_exit "TPM emulation only available on POSIX systems"
3759   fi
3760 fi
3761
3762 ##########################################
3763 # attr probe
3764
3765 libattr_libs=
3766 if test "$attr" != "no" ; then
3767   cat > $TMPC <<EOF
3768 #include <stdio.h>
3769 #include <sys/types.h>
3770 #ifdef CONFIG_LIBATTR
3771 #include <attr/xattr.h>
3772 #else
3773 #include <sys/xattr.h>
3774 #endif
3775 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
3776 EOF
3777   if compile_prog "" "" ; then
3778     attr=yes
3779   # Older distros have <attr/xattr.h>, and need -lattr:
3780   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
3781     attr=yes
3782     libattr_libs="-lattr"
3783     libattr=yes
3784   else
3785     if test "$attr" = "yes" ; then
3786       feature_not_found "ATTR" "Install libc6 or libattr devel"
3787     fi
3788     attr=no
3789   fi
3790 fi
3791
3792 ##########################################
3793 # iovec probe
3794 cat > $TMPC <<EOF
3795 #include <sys/types.h>
3796 #include <sys/uio.h>
3797 #include <unistd.h>
3798 int main(void) { return sizeof(struct iovec); }
3799 EOF
3800 iovec=no
3801 if compile_prog "" "" ; then
3802   iovec=yes
3803 fi
3804
3805 ##########################################
3806 # preadv probe
3807 cat > $TMPC <<EOF
3808 #include <sys/types.h>
3809 #include <sys/uio.h>
3810 #include <unistd.h>
3811 int main(void) { return preadv(0, 0, 0, 0); }
3812 EOF
3813 preadv=no
3814 if compile_prog "" "" ; then
3815   preadv=yes
3816 fi
3817
3818 ##########################################
3819 # fdt probe
3820
3821 case "$fdt" in
3822   auto | enabled | internal)
3823     # Simpler to always update submodule, even if not needed.
3824     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
3825       git_submodules="${git_submodules} dtc"
3826     fi
3827     ;;
3828 esac
3829
3830 ##########################################
3831 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3832
3833 gbm="no"
3834 if $pkg_config gbm; then
3835     gbm_cflags="$($pkg_config --cflags gbm)"
3836     gbm_libs="$($pkg_config --libs gbm)"
3837     gbm="yes"
3838 fi
3839
3840 if test "$opengl" != "no" ; then
3841   opengl_pkgs="epoxy gbm"
3842   if $pkg_config $opengl_pkgs; then
3843     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3844     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3845     opengl=yes
3846     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
3847         gtk_gl="yes"
3848     fi
3849   else
3850     if test "$opengl" = "yes" ; then
3851       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3852     fi
3853     opengl_cflags=""
3854     opengl_libs=""
3855     opengl=no
3856   fi
3857 fi
3858
3859 if test "$opengl" = "yes"; then
3860   cat > $TMPC << EOF
3861 #include <epoxy/egl.h>
3862 #ifndef EGL_MESA_image_dma_buf_export
3863 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3864 #endif
3865 int main(void) { return 0; }
3866 EOF
3867   if compile_prog "" "" ; then
3868     opengl_dmabuf=yes
3869   fi
3870 fi
3871
3872 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
3873   for target in $target_list; do
3874     case $target in
3875       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
3876         need_x11=yes
3877       ;;
3878     esac
3879   done
3880 fi
3881
3882 ##########################################
3883 # libxml2 probe
3884 if test "$libxml2" != "no" ; then
3885     if $pkg_config --exists libxml-2.0; then
3886         libxml2="yes"
3887         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3888         libxml2_libs=$($pkg_config --libs libxml-2.0)
3889     else
3890         if test "$libxml2" = "yes"; then
3891             feature_not_found "libxml2" "Install libxml2 devel"
3892         fi
3893         libxml2="no"
3894     fi
3895 fi
3896
3897 ##########################################
3898 # glusterfs probe
3899 if test "$glusterfs" != "no" ; then
3900   if $pkg_config --atleast-version=3 glusterfs-api; then
3901     glusterfs="yes"
3902     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
3903     glusterfs_libs=$($pkg_config --libs glusterfs-api)
3904     if $pkg_config --atleast-version=4 glusterfs-api; then
3905       glusterfs_xlator_opt="yes"
3906     fi
3907     if $pkg_config --atleast-version=5 glusterfs-api; then
3908       glusterfs_discard="yes"
3909     fi
3910     if $pkg_config --atleast-version=6 glusterfs-api; then
3911       glusterfs_fallocate="yes"
3912       glusterfs_zerofill="yes"
3913     fi
3914     cat > $TMPC << EOF
3915 #include <glusterfs/api/glfs.h>
3916
3917 int
3918 main(void)
3919 {
3920         /* new glfs_ftruncate() passes two additional args */
3921         return glfs_ftruncate(NULL, 0, NULL, NULL);
3922 }
3923 EOF
3924     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3925       glusterfs_ftruncate_has_stat="yes"
3926     fi
3927     cat > $TMPC << EOF
3928 #include <glusterfs/api/glfs.h>
3929
3930 /* new glfs_io_cbk() passes two additional glfs_stat structs */
3931 static void
3932 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
3933 {}
3934
3935 int
3936 main(void)
3937 {
3938         glfs_io_cbk iocb = &glusterfs_iocb;
3939         iocb(NULL, 0 , NULL, NULL, NULL);
3940         return 0;
3941 }
3942 EOF
3943     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3944       glusterfs_iocb_has_stat="yes"
3945     fi
3946   else
3947     if test "$glusterfs" = "yes" ; then
3948       feature_not_found "GlusterFS backend support" \
3949           "Install glusterfs-api devel >= 3"
3950     fi
3951     glusterfs="no"
3952   fi
3953 fi
3954
3955 # Check for inotify functions when we are building linux-user
3956 # emulator.  This is done because older glibc versions don't
3957 # have syscall stubs for these implemented.  In that case we
3958 # don't provide them even if kernel supports them.
3959 #
3960 inotify=no
3961 cat > $TMPC << EOF
3962 #include <sys/inotify.h>
3963
3964 int
3965 main(void)
3966 {
3967         /* try to start inotify */
3968         return inotify_init();
3969 }
3970 EOF
3971 if compile_prog "" "" ; then
3972   inotify=yes
3973 fi
3974
3975 inotify1=no
3976 cat > $TMPC << EOF
3977 #include <sys/inotify.h>
3978
3979 int
3980 main(void)
3981 {
3982     /* try to start inotify */
3983     return inotify_init1(0);
3984 }
3985 EOF
3986 if compile_prog "" "" ; then
3987   inotify1=yes
3988 fi
3989
3990 # check if pipe2 is there
3991 pipe2=no
3992 cat > $TMPC << EOF
3993 #include <unistd.h>
3994 #include <fcntl.h>
3995
3996 int main(void)
3997 {
3998     int pipefd[2];
3999     return pipe2(pipefd, O_CLOEXEC);
4000 }
4001 EOF
4002 if compile_prog "" "" ; then
4003   pipe2=yes
4004 fi
4005
4006 # check if accept4 is there
4007 accept4=no
4008 cat > $TMPC << EOF
4009 #include <sys/socket.h>
4010 #include <stddef.h>
4011
4012 int main(void)
4013 {
4014     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4015     return 0;
4016 }
4017 EOF
4018 if compile_prog "" "" ; then
4019   accept4=yes
4020 fi
4021
4022 # check if tee/splice is there. vmsplice was added same time.
4023 splice=no
4024 cat > $TMPC << EOF
4025 #include <unistd.h>
4026 #include <fcntl.h>
4027 #include <limits.h>
4028
4029 int main(void)
4030 {
4031     int len, fd = 0;
4032     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4033     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4034     return 0;
4035 }
4036 EOF
4037 if compile_prog "" "" ; then
4038   splice=yes
4039 fi
4040
4041 ##########################################
4042 # libnuma probe
4043
4044 if test "$numa" != "no" ; then
4045   cat > $TMPC << EOF
4046 #include <numa.h>
4047 int main(void) { return numa_available(); }
4048 EOF
4049
4050   if compile_prog "" "-lnuma" ; then
4051     numa=yes
4052     numa_libs="-lnuma"
4053   else
4054     if test "$numa" = "yes" ; then
4055       feature_not_found "numa" "install numactl devel"
4056     fi
4057     numa=no
4058   fi
4059 fi
4060
4061 malloc=system
4062 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4063     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4064     exit 1
4065 elif test "$tcmalloc" = "yes" ; then
4066     malloc=tcmalloc
4067 elif test "$jemalloc" = "yes" ; then
4068     malloc=jemalloc
4069 fi
4070
4071 ##########################################
4072 # signalfd probe
4073 signalfd="no"
4074 cat > $TMPC << EOF
4075 #include <unistd.h>
4076 #include <sys/syscall.h>
4077 #include <signal.h>
4078 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4079 EOF
4080
4081 if compile_prog "" "" ; then
4082   signalfd=yes
4083 fi
4084
4085 # check if optreset global is declared by <getopt.h>
4086 optreset="no"
4087 cat > $TMPC << EOF
4088 #include <getopt.h>
4089 int main(void) { return optreset; }
4090 EOF
4091
4092 if compile_prog "" "" ; then
4093   optreset=yes
4094 fi
4095
4096 # check if eventfd is supported
4097 eventfd=no
4098 cat > $TMPC << EOF
4099 #include <sys/eventfd.h>
4100
4101 int main(void)
4102 {
4103     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4104 }
4105 EOF
4106 if compile_prog "" "" ; then
4107   eventfd=yes
4108 fi
4109
4110 # check if memfd is supported
4111 memfd=no
4112 cat > $TMPC << EOF
4113 #include <sys/mman.h>
4114
4115 int main(void)
4116 {
4117     return memfd_create("foo", MFD_ALLOW_SEALING);
4118 }
4119 EOF
4120 if compile_prog "" "" ; then
4121   memfd=yes
4122 fi
4123
4124 # check for usbfs
4125 have_usbfs=no
4126 if test "$linux_user" = "yes"; then
4127   cat > $TMPC << EOF
4128 #include <linux/usbdevice_fs.h>
4129
4130 #ifndef USBDEVFS_GET_CAPABILITIES
4131 #error "USBDEVFS_GET_CAPABILITIES undefined"
4132 #endif
4133
4134 #ifndef USBDEVFS_DISCONNECT_CLAIM
4135 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4136 #endif
4137
4138 int main(void)
4139 {
4140     return 0;
4141 }
4142 EOF
4143   if compile_prog "" ""; then
4144     have_usbfs=yes
4145   fi
4146 fi
4147
4148 # check for fallocate
4149 fallocate=no
4150 cat > $TMPC << EOF
4151 #include <fcntl.h>
4152
4153 int main(void)
4154 {
4155     fallocate(0, 0, 0, 0);
4156     return 0;
4157 }
4158 EOF
4159 if compile_prog "" "" ; then
4160   fallocate=yes
4161 fi
4162
4163 # check for fallocate hole punching
4164 fallocate_punch_hole=no
4165 cat > $TMPC << EOF
4166 #include <fcntl.h>
4167 #include <linux/falloc.h>
4168
4169 int main(void)
4170 {
4171     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4172     return 0;
4173 }
4174 EOF
4175 if compile_prog "" "" ; then
4176   fallocate_punch_hole=yes
4177 fi
4178
4179 # check that fallocate supports range zeroing inside the file
4180 fallocate_zero_range=no
4181 cat > $TMPC << EOF
4182 #include <fcntl.h>
4183 #include <linux/falloc.h>
4184
4185 int main(void)
4186 {
4187     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4188     return 0;
4189 }
4190 EOF
4191 if compile_prog "" "" ; then
4192   fallocate_zero_range=yes
4193 fi
4194
4195 # check for posix_fallocate
4196 posix_fallocate=no
4197 cat > $TMPC << EOF
4198 #include <fcntl.h>
4199
4200 int main(void)
4201 {
4202     posix_fallocate(0, 0, 0);
4203     return 0;
4204 }
4205 EOF
4206 if compile_prog "" "" ; then
4207     posix_fallocate=yes
4208 fi
4209
4210 # check for sync_file_range
4211 sync_file_range=no
4212 cat > $TMPC << EOF
4213 #include <fcntl.h>
4214
4215 int main(void)
4216 {
4217     sync_file_range(0, 0, 0, 0);
4218     return 0;
4219 }
4220 EOF
4221 if compile_prog "" "" ; then
4222   sync_file_range=yes
4223 fi
4224
4225 # check for linux/fiemap.h and FS_IOC_FIEMAP
4226 fiemap=no
4227 cat > $TMPC << EOF
4228 #include <sys/ioctl.h>
4229 #include <linux/fs.h>
4230 #include <linux/fiemap.h>
4231
4232 int main(void)
4233 {
4234     ioctl(0, FS_IOC_FIEMAP, 0);
4235     return 0;
4236 }
4237 EOF
4238 if compile_prog "" "" ; then
4239   fiemap=yes
4240 fi
4241
4242 # check for dup3
4243 dup3=no
4244 cat > $TMPC << EOF
4245 #include <unistd.h>
4246
4247 int main(void)
4248 {
4249     dup3(0, 0, 0);
4250     return 0;
4251 }
4252 EOF
4253 if compile_prog "" "" ; then
4254   dup3=yes
4255 fi
4256
4257 # check for ppoll support
4258 ppoll=no
4259 cat > $TMPC << EOF
4260 #include <poll.h>
4261
4262 int main(void)
4263 {
4264     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4265     ppoll(&pfd, 1, 0, 0);
4266     return 0;
4267 }
4268 EOF
4269 if compile_prog "" "" ; then
4270   ppoll=yes
4271 fi
4272
4273 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4274 prctl_pr_set_timerslack=no
4275 cat > $TMPC << EOF
4276 #include <sys/prctl.h>
4277
4278 int main(void)
4279 {
4280     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4281     return 0;
4282 }
4283 EOF
4284 if compile_prog "" "" ; then
4285   prctl_pr_set_timerslack=yes
4286 fi
4287
4288 # check for epoll support
4289 epoll=no
4290 cat > $TMPC << EOF
4291 #include <sys/epoll.h>
4292
4293 int main(void)
4294 {
4295     epoll_create(0);
4296     return 0;
4297 }
4298 EOF
4299 if compile_prog "" "" ; then
4300   epoll=yes
4301 fi
4302
4303 # epoll_create1 is a later addition
4304 # so we must check separately for its presence
4305 epoll_create1=no
4306 cat > $TMPC << EOF
4307 #include <sys/epoll.h>
4308
4309 int main(void)
4310 {
4311     /* Note that we use epoll_create1 as a value, not as
4312      * a function being called. This is necessary so that on
4313      * old SPARC glibc versions where the function was present in
4314      * the library but not declared in the header file we will
4315      * fail the configure check. (Otherwise we will get a compiler
4316      * warning but not an error, and will proceed to fail the
4317      * qemu compile where we compile with -Werror.)
4318      */
4319     return (int)(uintptr_t)&epoll_create1;
4320 }
4321 EOF
4322 if compile_prog "" "" ; then
4323   epoll_create1=yes
4324 fi
4325
4326 # check for sendfile support
4327 sendfile=no
4328 cat > $TMPC << EOF
4329 #include <sys/sendfile.h>
4330
4331 int main(void)
4332 {
4333     return sendfile(0, 0, 0, 0);
4334 }
4335 EOF
4336 if compile_prog "" "" ; then
4337   sendfile=yes
4338 fi
4339
4340 # check for timerfd support (glibc 2.8 and newer)
4341 timerfd=no
4342 cat > $TMPC << EOF
4343 #include <sys/timerfd.h>
4344
4345 int main(void)
4346 {
4347     return(timerfd_create(CLOCK_REALTIME, 0));
4348 }
4349 EOF
4350 if compile_prog "" "" ; then
4351   timerfd=yes
4352 fi
4353
4354 # check for setns and unshare support
4355 setns=no
4356 cat > $TMPC << EOF
4357 #include <sched.h>
4358
4359 int main(void)
4360 {
4361     int ret;
4362     ret = setns(0, 0);
4363     ret = unshare(0);
4364     return ret;
4365 }
4366 EOF
4367 if compile_prog "" "" ; then
4368   setns=yes
4369 fi
4370
4371 # clock_adjtime probe
4372 clock_adjtime=no
4373 cat > $TMPC <<EOF
4374 #include <time.h>
4375
4376 int main(void)
4377 {
4378     return clock_adjtime(0, 0);
4379 }
4380 EOF
4381 clock_adjtime=no
4382 if compile_prog "" "" ; then
4383   clock_adjtime=yes
4384 fi
4385
4386 # syncfs probe
4387 syncfs=no
4388 cat > $TMPC <<EOF
4389 #include <unistd.h>
4390
4391 int main(void)
4392 {
4393     return syncfs(0);
4394 }
4395 EOF
4396 syncfs=no
4397 if compile_prog "" "" ; then
4398   syncfs=yes
4399 fi
4400
4401 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4402 kcov=no
4403 if check_include sys/kcov.h ; then
4404     kcov=yes
4405 fi
4406
4407 # check for btrfs filesystem support (kernel must be 3.9+)
4408 btrfs=no
4409 if check_include linux/btrfs.h ; then
4410     btrfs=yes
4411 fi
4412
4413 # Search for bswap_32 function
4414 byteswap_h=no
4415 cat > $TMPC << EOF
4416 #include <byteswap.h>
4417 int main(void) { return bswap_32(0); }
4418 EOF
4419 if compile_prog "" "" ; then
4420   byteswap_h=yes
4421 fi
4422
4423 # Search for bswap32 function
4424 bswap_h=no
4425 cat > $TMPC << EOF
4426 #include <sys/endian.h>
4427 #include <sys/types.h>
4428 #include <machine/bswap.h>
4429 int main(void) { return bswap32(0); }
4430 EOF
4431 if compile_prog "" "" ; then
4432   bswap_h=yes
4433 fi
4434
4435 ##########################################
4436 # Do we have libiscsi >= 1.9.0
4437 if test "$libiscsi" != "no" ; then
4438   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4439     libiscsi="yes"
4440     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4441     libiscsi_libs=$($pkg_config --libs libiscsi)
4442   else
4443     if test "$libiscsi" = "yes" ; then
4444       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4445     fi
4446     libiscsi="no"
4447   fi
4448 fi
4449
4450 ##########################################
4451 # Do we need librt
4452 # uClibc provides 2 versions of clock_gettime(), one with realtime
4453 # support and one without. This means that the clock_gettime() don't
4454 # need -lrt. We still need it for timer_create() so we check for this
4455 # function in addition.
4456 cat > $TMPC <<EOF
4457 #include <signal.h>
4458 #include <time.h>
4459 int main(void) {
4460   timer_create(CLOCK_REALTIME, NULL, NULL);
4461   return clock_gettime(CLOCK_REALTIME, NULL);
4462 }
4463 EOF
4464
4465 if compile_prog "" "" ; then
4466   :
4467 # we need pthread for static linking. use previous pthread test result
4468 elif compile_prog "" "$pthread_lib -lrt" ; then
4469   LIBS="$LIBS -lrt"
4470 fi
4471
4472 # Check whether we have openpty() in either libc or libutil
4473 cat > $TMPC << EOF
4474 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4475 int main(void) { return openpty(0, 0, 0, 0, 0); }
4476 EOF
4477
4478 have_openpty="no"
4479 if compile_prog "" "" ; then
4480   have_openpty="yes"
4481 else
4482   if compile_prog "" "-lutil" ; then
4483     have_openpty="yes"
4484   fi
4485 fi
4486
4487 ##########################################
4488 # spice probe
4489 if test "$spice" != "no" ; then
4490   cat > $TMPC << EOF
4491 #include <spice.h>
4492 int main(void) { spice_server_new(); return 0; }
4493 EOF
4494   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4495   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4496   if $pkg_config --atleast-version=0.12.5 spice-server && \
4497      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4498      compile_prog "$spice_cflags" "$spice_libs" ; then
4499     spice="yes"
4500   else
4501     if test "$spice" = "yes" ; then
4502       feature_not_found "spice" \
4503           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4504     fi
4505     spice="no"
4506   fi
4507 fi
4508
4509 # check for smartcard support
4510 if test "$smartcard" != "no"; then
4511     if $pkg_config --atleast-version=2.5.1 libcacard; then
4512         libcacard_cflags=$($pkg_config --cflags libcacard)
4513         libcacard_libs=$($pkg_config --libs libcacard)
4514         smartcard="yes"
4515     else
4516         if test "$smartcard" = "yes"; then
4517             feature_not_found "smartcard" "Install libcacard devel"
4518         fi
4519         smartcard="no"
4520     fi
4521 fi
4522
4523 # check for libusb
4524 if test "$libusb" != "no" ; then
4525     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4526         libusb="yes"
4527         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4528         libusb_libs=$($pkg_config --libs libusb-1.0)
4529     else
4530         if test "$libusb" = "yes"; then
4531             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4532         fi
4533         libusb="no"
4534     fi
4535 fi
4536
4537 # check for usbredirparser for usb network redirection support
4538 if test "$usb_redir" != "no" ; then
4539     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4540         usb_redir="yes"
4541         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4542         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4543     else
4544         if test "$usb_redir" = "yes"; then
4545             feature_not_found "usb-redir" "Install usbredir devel"
4546         fi
4547         usb_redir="no"
4548     fi
4549 fi
4550
4551 ##########################################
4552 # check if we have VSS SDK headers for win
4553
4554 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4555         test "$vss_win32_sdk" != "no" ; then
4556   case "$vss_win32_sdk" in
4557     "")   vss_win32_include="-isystem $source_path" ;;
4558     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4559           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4560           vss_win32_include="-isystem $source_path/.sdk/vss"
4561           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4562           ;;
4563     *)    vss_win32_include="-isystem $vss_win32_sdk"
4564   esac
4565   cat > $TMPC << EOF
4566 #define __MIDL_user_allocate_free_DEFINED__
4567 #include <inc/win2003/vss.h>
4568 int main(void) { return VSS_CTX_BACKUP; }
4569 EOF
4570   if compile_prog "$vss_win32_include" "" ; then
4571     guest_agent_with_vss="yes"
4572     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4573     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4574     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4575   else
4576     if test "$vss_win32_sdk" != "" ; then
4577       echo "ERROR: Please download and install Microsoft VSS SDK:"
4578       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4579       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4580       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4581       echo "ERROR: The headers are extracted in the directory \`inc'."
4582       feature_not_found "VSS support"
4583     fi
4584     guest_agent_with_vss="no"
4585   fi
4586 fi
4587
4588 ##########################################
4589 # lookup Windows platform SDK (if not specified)
4590 # The SDK is needed only to build .tlb (type library) file of guest agent
4591 # VSS provider from the source. It is usually unnecessary because the
4592 # pre-compiled .tlb file is included.
4593
4594 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4595         test "$guest_agent_with_vss" = "yes" ; then
4596   if test -z "$win_sdk"; then
4597     programfiles="$PROGRAMFILES"
4598     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4599     if test -n "$programfiles"; then
4600       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4601     else
4602       feature_not_found "Windows SDK"
4603     fi
4604   elif test "$win_sdk" = "no"; then
4605     win_sdk=""
4606   fi
4607 fi
4608
4609 ##########################################
4610 # check if mingw environment provides a recent ntddscsi.h
4611 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4612   cat > $TMPC << EOF
4613 #include <windows.h>
4614 #include <ntddscsi.h>
4615 int main(void) {
4616 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4617 #error Missing required ioctl definitions
4618 #endif
4619   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4620   return addr.Lun;
4621 }
4622 EOF
4623   if compile_prog "" "" ; then
4624     guest_agent_ntddscsi=yes
4625     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4626   fi
4627 fi
4628
4629 ##########################################
4630 # virgl renderer probe
4631
4632 if test "$virglrenderer" != "no" ; then
4633   cat > $TMPC << EOF
4634 #include <virglrenderer.h>
4635 int main(void) { virgl_renderer_poll(); return 0; }
4636 EOF
4637   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4638   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4639   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4640   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4641      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4642     virglrenderer="yes"
4643   else
4644     if test "$virglrenderer" = "yes" ; then
4645       feature_not_found "virglrenderer"
4646     fi
4647     virglrenderer="no"
4648   fi
4649 fi
4650
4651 ##########################################
4652 # capstone
4653
4654 case "$capstone" in
4655   auto | enabled | internal)
4656     # Simpler to always update submodule, even if not needed.
4657     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
4658       git_submodules="${git_submodules} capstone"
4659     fi
4660     ;;
4661 esac
4662
4663 ##########################################
4664 # check if we have fdatasync
4665
4666 fdatasync=no
4667 cat > $TMPC << EOF
4668 #include <unistd.h>
4669 int main(void) {
4670 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4671 return fdatasync(0);
4672 #else
4673 #error Not supported
4674 #endif
4675 }
4676 EOF
4677 if compile_prog "" "" ; then
4678     fdatasync=yes
4679 fi
4680
4681 ##########################################
4682 # check if we have madvise
4683
4684 madvise=no
4685 cat > $TMPC << EOF
4686 #include <sys/types.h>
4687 #include <sys/mman.h>
4688 #include <stddef.h>
4689 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4690 EOF
4691 if compile_prog "" "" ; then
4692     madvise=yes
4693 fi
4694
4695 ##########################################
4696 # check if we have posix_madvise
4697
4698 posix_madvise=no
4699 cat > $TMPC << EOF
4700 #include <sys/mman.h>
4701 #include <stddef.h>
4702 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4703 EOF
4704 if compile_prog "" "" ; then
4705     posix_madvise=yes
4706 fi
4707
4708 ##########################################
4709 # check if we have posix_memalign()
4710
4711 posix_memalign=no
4712 cat > $TMPC << EOF
4713 #include <stdlib.h>
4714 int main(void) {
4715     void *p;
4716     return posix_memalign(&p, 8, 8);
4717 }
4718 EOF
4719 if compile_prog "" "" ; then
4720     posix_memalign=yes
4721 fi
4722
4723 ##########################################
4724 # check if we have posix_syslog
4725
4726 posix_syslog=no
4727 cat > $TMPC << EOF
4728 #include <syslog.h>
4729 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4730 EOF
4731 if compile_prog "" "" ; then
4732     posix_syslog=yes
4733 fi
4734
4735 ##########################################
4736 # check if we have sem_timedwait
4737
4738 sem_timedwait=no
4739 cat > $TMPC << EOF
4740 #include <semaphore.h>
4741 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4742 EOF
4743 if compile_prog "" "" ; then
4744     sem_timedwait=yes
4745 fi
4746
4747 ##########################################
4748 # check if we have strchrnul
4749
4750 strchrnul=no
4751 cat > $TMPC << EOF
4752 #include <string.h>
4753 int main(void);
4754 // Use a haystack that the compiler shouldn't be able to constant fold
4755 char *haystack = (char*)&main;
4756 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4757 EOF
4758 if compile_prog "" "" ; then
4759     strchrnul=yes
4760 fi
4761
4762 #########################################
4763 # check if we have st_atim
4764
4765 st_atim=no
4766 cat > $TMPC << EOF
4767 #include <sys/stat.h>
4768 #include <stddef.h>
4769 int main(void) { return offsetof(struct stat, st_atim); }
4770 EOF
4771 if compile_prog "" "" ; then
4772     st_atim=yes
4773 fi
4774
4775 ##########################################
4776 # check if trace backend exists
4777
4778 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4779 if test "$?" -ne 0 ; then
4780   error_exit "invalid trace backends" \
4781       "Please choose supported trace backends."
4782 fi
4783
4784 ##########################################
4785 # For 'ust' backend, test if ust headers are present
4786 if have_backend "ust"; then
4787   cat > $TMPC << EOF
4788 #include <lttng/tracepoint.h>
4789 int main(void) { return 0; }
4790 EOF
4791   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4792     if $pkg_config lttng-ust --exists; then
4793       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4794     else
4795       lttng_ust_libs="-llttng-ust -ldl"
4796     fi
4797     if $pkg_config liburcu-bp --exists; then
4798       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4799     else
4800       urcu_bp_libs="-lurcu-bp"
4801     fi
4802   else
4803     error_exit "Trace backend 'ust' missing lttng-ust header files"
4804   fi
4805 fi
4806
4807 ##########################################
4808 # For 'dtrace' backend, test if 'dtrace' command is present
4809 if have_backend "dtrace"; then
4810   if ! has 'dtrace' ; then
4811     error_exit "dtrace command is not found in PATH $PATH"
4812   fi
4813   trace_backend_stap="no"
4814   if has 'stap' ; then
4815     trace_backend_stap="yes"
4816   fi
4817 fi
4818
4819 ##########################################
4820 # check and set a backend for coroutine
4821
4822 # We prefer ucontext, but it's not always possible. The fallback
4823 # is sigcontext. On Windows the only valid backend is the Windows
4824 # specific one.
4825
4826 ucontext_works=no
4827 if test "$darwin" != "yes"; then
4828   cat > $TMPC << EOF
4829 #include <ucontext.h>
4830 #ifdef __stub_makecontext
4831 #error Ignoring glibc stub makecontext which will always fail
4832 #endif
4833 int main(void) { makecontext(0, 0, 0); return 0; }
4834 EOF
4835   if compile_prog "" "" ; then
4836     ucontext_works=yes
4837   fi
4838 fi
4839
4840 if test "$coroutine" = ""; then
4841   if test "$mingw32" = "yes"; then
4842     coroutine=win32
4843   elif test "$ucontext_works" = "yes"; then
4844     coroutine=ucontext
4845   else
4846     coroutine=sigaltstack
4847   fi
4848 else
4849   case $coroutine in
4850   windows)
4851     if test "$mingw32" != "yes"; then
4852       error_exit "'windows' coroutine backend only valid for Windows"
4853     fi
4854     # Unfortunately the user visible backend name doesn't match the
4855     # coroutine-*.c filename for this case, so we have to adjust it here.
4856     coroutine=win32
4857     ;;
4858   ucontext)
4859     if test "$ucontext_works" != "yes"; then
4860       feature_not_found "ucontext"
4861     fi
4862     ;;
4863   sigaltstack)
4864     if test "$mingw32" = "yes"; then
4865       error_exit "only the 'windows' coroutine backend is valid for Windows"
4866     fi
4867     ;;
4868   *)
4869     error_exit "unknown coroutine backend $coroutine"
4870     ;;
4871   esac
4872 fi
4873
4874 if test "$coroutine_pool" = ""; then
4875   coroutine_pool=yes
4876 fi
4877
4878 if test "$debug_stack_usage" = "yes"; then
4879   if test "$coroutine_pool" = "yes"; then
4880     echo "WARN: disabling coroutine pool for stack usage debugging"
4881     coroutine_pool=no
4882   fi
4883 fi
4884
4885 ##################################################
4886 # SafeStack
4887
4888
4889 if test "$safe_stack" = "yes"; then
4890 cat > $TMPC << EOF
4891 int main(int argc, char *argv[])
4892 {
4893 #if ! __has_feature(safe_stack)
4894 #error SafeStack Disabled
4895 #endif
4896     return 0;
4897 }
4898 EOF
4899   flag="-fsanitize=safe-stack"
4900   # Check that safe-stack is supported and enabled.
4901   if compile_prog "-Werror $flag" "$flag"; then
4902     # Flag needed both at compilation and at linking
4903     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4904     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4905   else
4906     error_exit "SafeStack not supported by your compiler"
4907   fi
4908   if test "$coroutine" != "ucontext"; then
4909     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4910   fi
4911 else
4912 cat > $TMPC << EOF
4913 int main(int argc, char *argv[])
4914 {
4915 #if defined(__has_feature)
4916 #if __has_feature(safe_stack)
4917 #error SafeStack Enabled
4918 #endif
4919 #endif
4920     return 0;
4921 }
4922 EOF
4923 if test "$safe_stack" = "no"; then
4924   # Make sure that safe-stack is disabled
4925   if ! compile_prog "-Werror" ""; then
4926     # SafeStack was already enabled, try to explicitly remove the feature
4927     flag="-fno-sanitize=safe-stack"
4928     if ! compile_prog "-Werror $flag" "$flag"; then
4929       error_exit "Configure cannot disable SafeStack"
4930     fi
4931     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4932     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4933   fi
4934 else # "$safe_stack" = ""
4935   # Set safe_stack to yes or no based on pre-existing flags
4936   if compile_prog "-Werror" ""; then
4937     safe_stack="no"
4938   else
4939     safe_stack="yes"
4940     if test "$coroutine" != "ucontext"; then
4941       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4942     fi
4943   fi
4944 fi
4945 fi
4946
4947 ##########################################
4948 # check if we have open_by_handle_at
4949
4950 open_by_handle_at=no
4951 cat > $TMPC << EOF
4952 #include <fcntl.h>
4953 #if !defined(AT_EMPTY_PATH)
4954 # error missing definition
4955 #else
4956 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4957 #endif
4958 EOF
4959 if compile_prog "" "" ; then
4960     open_by_handle_at=yes
4961 fi
4962
4963 ########################################
4964 # check if we have linux/magic.h
4965
4966 linux_magic_h=no
4967 cat > $TMPC << EOF
4968 #include <linux/magic.h>
4969 int main(void) {
4970   return 0;
4971 }
4972 EOF
4973 if compile_prog "" "" ; then
4974     linux_magic_h=yes
4975 fi
4976
4977 ########################################
4978 # check if we have valgrind/valgrind.h
4979
4980 valgrind_h=no
4981 cat > $TMPC << EOF
4982 #include <valgrind/valgrind.h>
4983 int main(void) {
4984   return 0;
4985 }
4986 EOF
4987 if compile_prog "" "" ; then
4988     valgrind_h=yes
4989 fi
4990
4991 ########################################
4992 # check if environ is declared
4993
4994 has_environ=no
4995 cat > $TMPC << EOF
4996 #include <unistd.h>
4997 int main(void) {
4998     environ = 0;
4999     return 0;
5000 }
5001 EOF
5002 if compile_prog "" "" ; then
5003     has_environ=yes
5004 fi
5005
5006 ########################################
5007 # check if cpuid.h is usable.
5008
5009 cat > $TMPC << EOF
5010 #include <cpuid.h>
5011 int main(void) {
5012     unsigned a, b, c, d;
5013     int max = __get_cpuid_max(0, 0);
5014
5015     if (max >= 1) {
5016         __cpuid(1, a, b, c, d);
5017     }
5018
5019     if (max >= 7) {
5020         __cpuid_count(7, 0, a, b, c, d);
5021     }
5022
5023     return 0;
5024 }
5025 EOF
5026 if compile_prog "" "" ; then
5027     cpuid_h=yes
5028 fi
5029
5030 ##########################################
5031 # avx2 optimization requirement check
5032 #
5033 # There is no point enabling this if cpuid.h is not usable,
5034 # since we won't be able to select the new routines.
5035
5036 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5037   cat > $TMPC << EOF
5038 #pragma GCC push_options
5039 #pragma GCC target("avx2")
5040 #include <cpuid.h>
5041 #include <immintrin.h>
5042 static int bar(void *a) {
5043     __m256i x = *(__m256i *)a;
5044     return _mm256_testz_si256(x, x);
5045 }
5046 int main(int argc, char *argv[]) { return bar(argv[0]); }
5047 EOF
5048   if compile_object "" ; then
5049     avx2_opt="yes"
5050   else
5051     avx2_opt="no"
5052   fi
5053 fi
5054
5055 ##########################################
5056 # avx512f optimization requirement check
5057 #
5058 # There is no point enabling this if cpuid.h is not usable,
5059 # since we won't be able to select the new routines.
5060 # by default, it is turned off.
5061 # if user explicitly want to enable it, check environment
5062
5063 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5064   cat > $TMPC << EOF
5065 #pragma GCC push_options
5066 #pragma GCC target("avx512f")
5067 #include <cpuid.h>
5068 #include <immintrin.h>
5069 static int bar(void *a) {
5070     __m512i x = *(__m512i *)a;
5071     return _mm512_test_epi64_mask(x, x);
5072 }
5073 int main(int argc, char *argv[])
5074 {
5075         return bar(argv[0]);
5076 }
5077 EOF
5078   if ! compile_object "" ; then
5079     avx512f_opt="no"
5080   fi
5081 else
5082   avx512f_opt="no"
5083 fi
5084
5085 ########################################
5086 # check if __[u]int128_t is usable.
5087
5088 int128=no
5089 cat > $TMPC << EOF
5090 __int128_t a;
5091 __uint128_t b;
5092 int main (void) {
5093   a = a + b;
5094   b = a * b;
5095   a = a * a;
5096   return 0;
5097 }
5098 EOF
5099 if compile_prog "" "" ; then
5100     int128=yes
5101 fi
5102
5103 #########################################
5104 # See if 128-bit atomic operations are supported.
5105
5106 atomic128=no
5107 if test "$int128" = "yes"; then
5108   cat > $TMPC << EOF
5109 int main(void)
5110 {
5111   unsigned __int128 x = 0, y = 0;
5112   y = __atomic_load_16(&x, 0);
5113   __atomic_store_16(&x, y, 0);
5114   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5115   return 0;
5116 }
5117 EOF
5118   if compile_prog "" "" ; then
5119     atomic128=yes
5120   fi
5121 fi
5122
5123 cmpxchg128=no
5124 if test "$int128" = yes && test "$atomic128" = no; then
5125   cat > $TMPC << EOF
5126 int main(void)
5127 {
5128   unsigned __int128 x = 0, y = 0;
5129   __sync_val_compare_and_swap_16(&x, y, x);
5130   return 0;
5131 }
5132 EOF
5133   if compile_prog "" "" ; then
5134     cmpxchg128=yes
5135   fi
5136 fi
5137
5138 #########################################
5139 # See if 64-bit atomic operations are supported.
5140 # Note that without __atomic builtins, we can only
5141 # assume atomic loads/stores max at pointer size.
5142
5143 cat > $TMPC << EOF
5144 #include <stdint.h>
5145 int main(void)
5146 {
5147   uint64_t x = 0, y = 0;
5148 #ifdef __ATOMIC_RELAXED
5149   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5150   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5151   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5152   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5153   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5154 #else
5155   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5156   __sync_lock_test_and_set(&x, y);
5157   __sync_val_compare_and_swap(&x, y, 0);
5158   __sync_fetch_and_add(&x, y);
5159 #endif
5160   return 0;
5161 }
5162 EOF
5163 if compile_prog "" "" ; then
5164   atomic64=yes
5165 fi
5166
5167 #########################################
5168 # See if --dynamic-list is supported by the linker
5169 ld_dynamic_list="no"
5170 if test "$static" = "no" ; then
5171     cat > $TMPTXT <<EOF
5172 {
5173   foo;
5174 };
5175 EOF
5176
5177     cat > $TMPC <<EOF
5178 #include <stdio.h>
5179 void foo(void);
5180
5181 void foo(void)
5182 {
5183   printf("foo\n");
5184 }
5185
5186 int main(void)
5187 {
5188   foo();
5189   return 0;
5190 }
5191 EOF
5192
5193     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5194         ld_dynamic_list="yes"
5195     fi
5196 fi
5197
5198 #########################################
5199 # See if -exported_symbols_list is supported by the linker
5200
5201 ld_exported_symbols_list="no"
5202 if test "$static" = "no" ; then
5203     cat > $TMPTXT <<EOF
5204   _foo
5205 EOF
5206
5207     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5208         ld_exported_symbols_list="yes"
5209     fi
5210 fi
5211
5212 if  test "$plugins" = "yes" &&
5213     test "$ld_dynamic_list" = "no" &&
5214     test "$ld_exported_symbols_list" = "no" ; then
5215   error_exit \
5216       "Plugin support requires dynamic linking and specifying a set of symbols " \
5217       "that are exported to plugins. Unfortunately your linker doesn't " \
5218       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5219       "for this purpose. You can't build with --static."
5220 fi
5221
5222 ########################################
5223 # See if __attribute__((alias)) is supported.
5224 # This false for Xcode 9, but has been remedied for Xcode 10.
5225 # Unfortunately, travis uses Xcode 9 by default.
5226
5227 attralias=no
5228 cat > $TMPC << EOF
5229 int x = 1;
5230 extern const int y __attribute__((alias("x")));
5231 int main(void) { return 0; }
5232 EOF
5233 if compile_prog "" "" ; then
5234     attralias=yes
5235 fi
5236
5237 ########################################
5238 # check if getauxval is available.
5239
5240 getauxval=no
5241 cat > $TMPC << EOF
5242 #include <sys/auxv.h>
5243 int main(void) {
5244   return getauxval(AT_HWCAP) == 0;
5245 }
5246 EOF
5247 if compile_prog "" "" ; then
5248     getauxval=yes
5249 fi
5250
5251 ########################################
5252 # check if ccache is interfering with
5253 # semantic analysis of macros
5254
5255 unset CCACHE_CPP2
5256 ccache_cpp2=no
5257 cat > $TMPC << EOF
5258 static const int Z = 1;
5259 #define fn() ({ Z; })
5260 #define TAUT(X) ((X) == Z)
5261 #define PAREN(X, Y) (X == Y)
5262 #define ID(X) (X)
5263 int main(int argc, char *argv[])
5264 {
5265     int x = 0, y = 0;
5266     x = ID(x);
5267     x = fn();
5268     fn();
5269     if (PAREN(x, y)) return 0;
5270     if (TAUT(Z)) return 0;
5271     return 0;
5272 }
5273 EOF
5274
5275 if ! compile_object "-Werror"; then
5276     ccache_cpp2=yes
5277 fi
5278
5279 #################################################
5280 # clang does not support glibc + FORTIFY_SOURCE.
5281
5282 if test "$fortify_source" != "no"; then
5283   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5284     fortify_source="no";
5285   elif test -n "$cxx" && has $cxx &&
5286        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5287     fortify_source="no";
5288   else
5289     fortify_source="yes"
5290   fi
5291 fi
5292
5293 ###############################################
5294 # Check if copy_file_range is provided by glibc
5295 have_copy_file_range=no
5296 cat > $TMPC << EOF
5297 #include <unistd.h>
5298 int main(void) {
5299   copy_file_range(0, NULL, 0, NULL, 0, 0);
5300   return 0;
5301 }
5302 EOF
5303 if compile_prog "" "" ; then
5304     have_copy_file_range=yes
5305 fi
5306
5307 ##########################################
5308 # check if struct fsxattr is available via linux/fs.h
5309
5310 have_fsxattr=no
5311 cat > $TMPC << EOF
5312 #include <linux/fs.h>
5313 struct fsxattr foo;
5314 int main(void) {
5315   return 0;
5316 }
5317 EOF
5318 if compile_prog "" "" ; then
5319     have_fsxattr=yes
5320 fi
5321
5322 ##########################################
5323 # check for usable membarrier system call
5324 if test "$membarrier" = "yes"; then
5325     have_membarrier=no
5326     if test "$mingw32" = "yes" ; then
5327         have_membarrier=yes
5328     elif test "$linux" = "yes" ; then
5329         cat > $TMPC << EOF
5330     #include <linux/membarrier.h>
5331     #include <sys/syscall.h>
5332     #include <unistd.h>
5333     #include <stdlib.h>
5334     int main(void) {
5335         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5336         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5337         exit(0);
5338     }
5339 EOF
5340         if compile_prog "" "" ; then
5341             have_membarrier=yes
5342         fi
5343     fi
5344     if test "$have_membarrier" = "no"; then
5345       feature_not_found "membarrier" "membarrier system call not available"
5346     fi
5347 else
5348     # Do not enable it by default even for Mingw32, because it doesn't
5349     # work on Wine.
5350     membarrier=no
5351 fi
5352
5353 ##########################################
5354 # check if rtnetlink.h exists and is useful
5355 have_rtnetlink=no
5356 cat > $TMPC << EOF
5357 #include <linux/rtnetlink.h>
5358 int main(void) {
5359   return IFLA_PROTO_DOWN;
5360 }
5361 EOF
5362 if compile_prog "" "" ; then
5363     have_rtnetlink=yes
5364 fi
5365
5366 ##########################################
5367 # check for usable AF_VSOCK environment
5368 have_af_vsock=no
5369 cat > $TMPC << EOF
5370 #include <errno.h>
5371 #include <sys/types.h>
5372 #include <sys/socket.h>
5373 #if !defined(AF_VSOCK)
5374 # error missing AF_VSOCK flag
5375 #endif
5376 #include <linux/vm_sockets.h>
5377 int main(void) {
5378     int sock, ret;
5379     struct sockaddr_vm svm;
5380     socklen_t len = sizeof(svm);
5381     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5382     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5383     if ((ret == -1) && (errno == ENOTCONN)) {
5384         return 0;
5385     }
5386     return -1;
5387 }
5388 EOF
5389 if compile_prog "" "" ; then
5390     have_af_vsock=yes
5391 fi
5392
5393 ##########################################
5394 # check for usable AF_ALG environment
5395 have_afalg=no
5396 cat > $TMPC << EOF
5397 #include <errno.h>
5398 #include <sys/types.h>
5399 #include <sys/socket.h>
5400 #include <linux/if_alg.h>
5401 int main(void) {
5402     int sock;
5403     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5404     return sock;
5405 }
5406 EOF
5407 if compile_prog "" "" ; then
5408     have_afalg=yes
5409 fi
5410 if test "$crypto_afalg" = "yes"
5411 then
5412     if test "$have_afalg" != "yes"
5413     then
5414         error_exit "AF_ALG requested but could not be detected"
5415     fi
5416 fi
5417
5418
5419 #################################################
5420 # check for sysmacros.h
5421
5422 have_sysmacros=no
5423 cat > $TMPC << EOF
5424 #include <sys/sysmacros.h>
5425 int main(void) {
5426     return makedev(0, 0);
5427 }
5428 EOF
5429 if compile_prog "" "" ; then
5430     have_sysmacros=yes
5431 fi
5432
5433 ##########################################
5434 # check for _Static_assert()
5435
5436 have_static_assert=no
5437 cat > $TMPC << EOF
5438 _Static_assert(1, "success");
5439 int main(void) {
5440     return 0;
5441 }
5442 EOF
5443 if compile_prog "" "" ; then
5444     have_static_assert=yes
5445 fi
5446
5447 ##########################################
5448 # check for utmpx.h, it is missing e.g. on OpenBSD
5449
5450 have_utmpx=no
5451 cat > $TMPC << EOF
5452 #include <utmpx.h>
5453 struct utmpx user_info;
5454 int main(void) {
5455     return 0;
5456 }
5457 EOF
5458 if compile_prog "" "" ; then
5459     have_utmpx=yes
5460 fi
5461
5462 ##########################################
5463 # check for getrandom()
5464
5465 have_getrandom=no
5466 cat > $TMPC << EOF
5467 #include <sys/random.h>
5468 int main(void) {
5469     return getrandom(0, 0, GRND_NONBLOCK);
5470 }
5471 EOF
5472 if compile_prog "" "" ; then
5473     have_getrandom=yes
5474 fi
5475
5476 ##########################################
5477 # checks for sanitizers
5478
5479 have_asan=no
5480 have_ubsan=no
5481 have_asan_iface_h=no
5482 have_asan_iface_fiber=no
5483
5484 if test "$sanitizers" = "yes" ; then
5485   write_c_skeleton
5486   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5487       have_asan=yes
5488   fi
5489
5490   # we could use a simple skeleton for flags checks, but this also
5491   # detect the static linking issue of ubsan, see also:
5492   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5493   cat > $TMPC << EOF
5494 #include <stdlib.h>
5495 int main(void) {
5496     void *tmp = malloc(10);
5497     if (tmp != NULL) {
5498         return *(int *)(tmp + 2);
5499     }
5500     return 1;
5501 }
5502 EOF
5503   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5504       have_ubsan=yes
5505   fi
5506
5507   if check_include "sanitizer/asan_interface.h" ; then
5508       have_asan_iface_h=yes
5509   fi
5510
5511   cat > $TMPC << EOF
5512 #include <sanitizer/asan_interface.h>
5513 int main(void) {
5514   __sanitizer_start_switch_fiber(0, 0, 0);
5515   return 0;
5516 }
5517 EOF
5518   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5519       have_asan_iface_fiber=yes
5520   fi
5521 fi
5522
5523 ##########################################
5524 # checks for fuzzer
5525 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5526   write_c_fuzzer_skeleton
5527   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5528     have_fuzzer=yes
5529   else
5530     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5531     exit 1
5532   fi
5533 fi
5534
5535 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5536 # keep it separate until that is not the case.
5537 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5538   error_exit "TSAN is not supported with other sanitiziers."
5539 fi
5540 have_tsan=no
5541 have_tsan_iface_fiber=no
5542 if test "$tsan" = "yes" ; then
5543   write_c_skeleton
5544   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5545       have_tsan=yes
5546   fi
5547   cat > $TMPC << EOF
5548 #include <sanitizer/tsan_interface.h>
5549 int main(void) {
5550   __tsan_create_fiber(0);
5551   return 0;
5552 }
5553 EOF
5554   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5555       have_tsan_iface_fiber=yes
5556   fi
5557 fi
5558
5559 ##########################################
5560 # check for libpmem
5561
5562 if test "$libpmem" != "no"; then
5563         if $pkg_config --exists "libpmem"; then
5564                 libpmem="yes"
5565                 libpmem_libs=$($pkg_config --libs libpmem)
5566                 libpmem_cflags=$($pkg_config --cflags libpmem)
5567         else
5568                 if test "$libpmem" = "yes" ; then
5569                         feature_not_found "libpmem" "Install nvml or pmdk"
5570                 fi
5571                 libpmem="no"
5572         fi
5573 fi
5574
5575 ##########################################
5576 # check for libdaxctl
5577
5578 if test "$libdaxctl" != "no"; then
5579         if $pkg_config --atleast-version=57 "libdaxctl"; then
5580                 libdaxctl="yes"
5581                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5582                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5583         else
5584                 if test "$libdaxctl" = "yes" ; then
5585                         feature_not_found "libdaxctl" "Install libdaxctl"
5586                 fi
5587                 libdaxctl="no"
5588         fi
5589 fi
5590
5591 ##########################################
5592 # check for slirp
5593
5594 case "$slirp" in
5595   auto | enabled | internal)
5596     # Simpler to always update submodule, even if not needed.
5597     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5598       git_submodules="${git_submodules} slirp"
5599     fi
5600     ;;
5601 esac
5602
5603 ##########################################
5604 # check for usable __NR_keyctl syscall
5605
5606 if test "$linux" = "yes" ; then
5607
5608     have_keyring=no
5609     cat > $TMPC << EOF
5610 #include <errno.h>
5611 #include <asm/unistd.h>
5612 #include <linux/keyctl.h>
5613 #include <unistd.h>
5614 int main(void) {
5615     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5616 }
5617 EOF
5618     if compile_prog "" "" ; then
5619         have_keyring=yes
5620     fi
5621 fi
5622 if test "$secret_keyring" != "no"
5623 then
5624     if test "$have_keyring" = "yes"
5625     then
5626         secret_keyring=yes
5627     else
5628         if test "$secret_keyring" = "yes"
5629         then
5630             error_exit "syscall __NR_keyctl requested, \
5631 but not implemented on your system"
5632         else
5633             secret_keyring=no
5634         fi
5635     fi
5636 fi
5637
5638 ##########################################
5639 # End of CC checks
5640 # After here, no more $cc or $ld runs
5641
5642 write_c_skeleton
5643
5644 if test "$gcov" = "yes" ; then
5645   :
5646 elif test "$fortify_source" = "yes" ; then
5647   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5648   debug=no
5649 fi
5650
5651 case "$ARCH" in
5652 alpha)
5653   # Ensure there's only a single GP
5654   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5655 ;;
5656 esac
5657
5658 if test "$gprof" = "yes" ; then
5659   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5660   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5661 fi
5662
5663 if test "$have_asan" = "yes"; then
5664   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5665   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5666   if test "$have_asan_iface_h" = "no" ; then
5667       echo "ASAN build enabled, but ASAN header missing." \
5668            "Without code annotation, the report may be inferior."
5669   elif test "$have_asan_iface_fiber" = "no" ; then
5670       echo "ASAN build enabled, but ASAN header is too old." \
5671            "Without code annotation, the report may be inferior."
5672   fi
5673 fi
5674 if test "$have_tsan" = "yes" ; then
5675   if test "$have_tsan_iface_fiber" = "yes" ; then
5676     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5677     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5678   else
5679     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5680   fi
5681 elif test "$tsan" = "yes" ; then
5682   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5683 fi
5684 if test "$have_ubsan" = "yes"; then
5685   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5686   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5687 fi
5688
5689 ##########################################
5690 # Do we have libnfs
5691 if test "$libnfs" != "no" ; then
5692   if $pkg_config --atleast-version=1.9.3 libnfs; then
5693     libnfs="yes"
5694     libnfs_libs=$($pkg_config --libs libnfs)
5695   else
5696     if test "$libnfs" = "yes" ; then
5697       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
5698     fi
5699     libnfs="no"
5700   fi
5701 fi
5702
5703 ##########################################
5704
5705 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5706 if test "$solaris" = "no" && test "$tsan" = "no"; then
5707     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5708         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5709     fi
5710 fi
5711
5712 # Use ASLR, no-SEH and DEP if available
5713 if test "$mingw32" = "yes" ; then
5714     flags="--no-seh --nxcompat"
5715
5716     # Disable ASLR for debug builds to allow debugging with gdb
5717     if test "$debug" = "no" ; then
5718         flags="--dynamicbase $flags"
5719     fi
5720
5721     for flag in $flags; do
5722         if ld_has $flag ; then
5723             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5724         fi
5725     done
5726 fi
5727
5728 qemu_confdir="$sysconfdir/$qemu_suffix"
5729 qemu_moddir="$libdir/$qemu_suffix"
5730 qemu_datadir="$datadir/$qemu_suffix"
5731 qemu_localedir="$datadir/locale"
5732 qemu_icondir="$datadir/icons"
5733 qemu_desktopdir="$datadir/applications"
5734
5735 # We can only support ivshmem if we have eventfd
5736 if [ "$eventfd" = "yes" ]; then
5737   ivshmem=yes
5738 fi
5739
5740 if test "$softmmu" = yes ; then
5741   if test "$linux" = yes; then
5742     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
5743       virtfs=yes
5744     else
5745       if test "$virtfs" = yes; then
5746         error_exit "VirtFS requires libcap-ng devel and libattr devel"
5747       fi
5748       virtfs=no
5749     fi
5750   else
5751     if test "$virtfs" = yes; then
5752       error_exit "VirtFS is supported only on Linux"
5753     fi
5754     virtfs=no
5755   fi
5756 fi
5757
5758 # Probe for guest agent support/options
5759
5760 if [ "$guest_agent" != "no" ]; then
5761   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5762       guest_agent=no
5763   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5764       guest_agent=yes
5765   elif [ "$guest_agent" != yes ]; then
5766       guest_agent=no
5767   else
5768       error_exit "Guest agent is not supported on this platform"
5769   fi
5770 fi
5771
5772 # Guest agent Window MSI  package
5773
5774 if test "$guest_agent" != yes; then
5775   if test "$guest_agent_msi" = yes; then
5776     error_exit "MSI guest agent package requires guest agent enabled"
5777   fi
5778   guest_agent_msi=no
5779 elif test "$mingw32" != "yes"; then
5780   if test "$guest_agent_msi" = "yes"; then
5781     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
5782   fi
5783   guest_agent_msi=no
5784 elif ! has wixl; then
5785   if test "$guest_agent_msi" = "yes"; then
5786     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
5787   fi
5788   guest_agent_msi=no
5789 else
5790   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
5791   # disabled explicitly
5792   if test "$guest_agent_msi" != "no"; then
5793     guest_agent_msi=yes
5794   fi
5795 fi
5796
5797 if test "$guest_agent_msi" = "yes"; then
5798   if test "$guest_agent_with_vss" = "yes"; then
5799     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
5800   fi
5801
5802   if test "$QEMU_GA_MANUFACTURER" = ""; then
5803     QEMU_GA_MANUFACTURER=QEMU
5804   fi
5805
5806   if test "$QEMU_GA_DISTRO" = ""; then
5807     QEMU_GA_DISTRO=Linux
5808   fi
5809
5810   if test "$QEMU_GA_VERSION" = ""; then
5811       QEMU_GA_VERSION=$(cat $source_path/VERSION)
5812   fi
5813
5814   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
5815
5816   case "$cpu" in
5817   x86_64)
5818     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
5819     ;;
5820   i386)
5821     QEMU_GA_MSI_ARCH="-D Arch=32"
5822     ;;
5823   *)
5824     error_exit "CPU $cpu not supported for building installation package"
5825     ;;
5826   esac
5827 fi
5828
5829 # Mac OS X ships with a broken assembler
5830 roms=
5831 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5832         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5833         test "$softmmu" = yes ; then
5834     # Different host OS linkers have different ideas about the name of the ELF
5835     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5836     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5837     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5838         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5839             ld_i386_emulation="$emu"
5840             roms="optionrom"
5841             break
5842         fi
5843     done
5844 fi
5845
5846 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5847 if test "$cpu" = "s390x" ; then
5848   write_c_skeleton
5849   if compile_prog "-march=z900" ""; then
5850     roms="$roms s390-ccw"
5851     # SLOF is required for building the s390-ccw firmware on s390x,
5852     # since it is using the libnet code from SLOF for network booting.
5853     if test -e "${source_path}/.git" ; then
5854       git_submodules="${git_submodules} roms/SLOF"
5855     fi
5856   fi
5857 fi
5858
5859 # Check that the C++ compiler exists and works with the C compiler.
5860 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5861 if has $cxx; then
5862     cat > $TMPC <<EOF
5863 int c_function(void);
5864 int main(void) { return c_function(); }
5865 EOF
5866
5867     compile_object
5868
5869     cat > $TMPCXX <<EOF
5870 extern "C" {
5871    int c_function(void);
5872 }
5873 int c_function(void) { return 42; }
5874 EOF
5875
5876     update_cxxflags
5877
5878     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5879         # C++ compiler $cxx works ok with C compiler $cc
5880         :
5881     else
5882         echo "C++ compiler $cxx does not work with C compiler $cc"
5883         echo "Disabling C++ specific optional code"
5884         cxx=
5885     fi
5886 else
5887     echo "No C++ compiler available; disabling C++ specific optional code"
5888     cxx=
5889 fi
5890
5891 if test $git_update = 'yes' ; then
5892     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
5893 fi
5894
5895 config_host_mak="config-host.mak"
5896
5897 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5898 echo >> $config_host_mak
5899
5900 echo all: >> $config_host_mak
5901 echo "prefix=$prefix" >> $config_host_mak
5902 echo "bindir=$bindir" >> $config_host_mak
5903 echo "libdir=$libdir" >> $config_host_mak
5904 echo "libexecdir=$libexecdir" >> $config_host_mak
5905 echo "includedir=$includedir" >> $config_host_mak
5906 echo "sysconfdir=$sysconfdir" >> $config_host_mak
5907 echo "qemu_confdir=$qemu_confdir" >> $config_host_mak
5908 echo "qemu_datadir=$qemu_datadir" >> $config_host_mak
5909 echo "qemu_firmwarepath=$firmwarepath" >> $config_host_mak
5910 echo "qemu_moddir=$qemu_moddir" >> $config_host_mak
5911 if test "$mingw32" = "no" ; then
5912   echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
5913 fi
5914 echo "qemu_helperdir=$libexecdir" >> $config_host_mak
5915 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
5916 echo "qemu_icondir=$qemu_icondir" >> $config_host_mak
5917 echo "qemu_desktopdir=$qemu_desktopdir" >> $config_host_mak
5918 echo "GIT=$git" >> $config_host_mak
5919 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5920 echo "GIT_UPDATE=$git_update" >> $config_host_mak
5921
5922 echo "ARCH=$ARCH" >> $config_host_mak
5923
5924 if test "$default_devices" = "yes" ; then
5925   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
5926 else
5927   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
5928 fi
5929 if test "$debug_tcg" = "yes" ; then
5930   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5931 fi
5932 if test "$strip_opt" = "yes" ; then
5933   echo "STRIP=${strip}" >> $config_host_mak
5934 fi
5935 if test "$bigendian" = "yes" ; then
5936   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5937 fi
5938 if test "$mingw32" = "yes" ; then
5939   echo "CONFIG_WIN32=y" >> $config_host_mak
5940   rc_version=$(cat $source_path/VERSION)
5941   version_major=${rc_version%%.*}
5942   rc_version=${rc_version#*.}
5943   version_minor=${rc_version%%.*}
5944   rc_version=${rc_version#*.}
5945   version_subminor=${rc_version%%.*}
5946   version_micro=0
5947   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5948   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5949   if test "$guest_agent_with_vss" = "yes" ; then
5950     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5951     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5952     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5953   fi
5954   if test "$guest_agent_ntddscsi" = "yes" ; then
5955     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5956   fi
5957   if test "$guest_agent_msi" = "yes"; then
5958     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
5959     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5960     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
5961     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
5962     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5963     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5964     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5965   fi
5966 else
5967   echo "CONFIG_POSIX=y" >> $config_host_mak
5968 fi
5969
5970 if test "$linux" = "yes" ; then
5971   echo "CONFIG_LINUX=y" >> $config_host_mak
5972 fi
5973
5974 if test "$darwin" = "yes" ; then
5975   echo "CONFIG_DARWIN=y" >> $config_host_mak
5976 fi
5977
5978 if test "$solaris" = "yes" ; then
5979   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5980 fi
5981 if test "$haiku" = "yes" ; then
5982   echo "CONFIG_HAIKU=y" >> $config_host_mak
5983 fi
5984 if test "$static" = "yes" ; then
5985   echo "CONFIG_STATIC=y" >> $config_host_mak
5986 fi
5987 if test "$profiler" = "yes" ; then
5988   echo "CONFIG_PROFILER=y" >> $config_host_mak
5989 fi
5990 if test "$want_tools" = "yes" ; then
5991   echo "CONFIG_TOOLS=y" >> $config_host_mak
5992 fi
5993 if test "$guest_agent" = "yes" ; then
5994   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5995 fi
5996 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5997 if test "$vde" = "yes" ; then
5998   echo "CONFIG_VDE=y" >> $config_host_mak
5999   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
6000 fi
6001 if test "$netmap" = "yes" ; then
6002   echo "CONFIG_NETMAP=y" >> $config_host_mak
6003 fi
6004 if test "$l2tpv3" = "yes" ; then
6005   echo "CONFIG_L2TPV3=y" >> $config_host_mak
6006 fi
6007 if test "$gprof" = "yes" ; then
6008   echo "CONFIG_GPROF=y" >> $config_host_mak
6009 fi
6010 if test "$cap_ng" = "yes" ; then
6011   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
6012   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
6013 fi
6014 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
6015 for drv in $audio_drv_list; do
6016     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
6017     echo "$def=y" >> $config_host_mak
6018 done
6019 if test "$alsa" = "yes" ; then
6020     echo "CONFIG_ALSA=y" >> $config_host_mak
6021 fi
6022 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6023 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
6024 if test "$libpulse" = "yes" ; then
6025     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
6026 fi
6027 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6028 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6029 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6030 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6031 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6032 if test "$libjack" = "yes" ; then
6033     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6034 fi
6035 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6036 if test "$audio_win_int" = "yes" ; then
6037   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6038 fi
6039 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6040 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6041 if test "$xfs" = "yes" ; then
6042   echo "CONFIG_XFS=y" >> $config_host_mak
6043 fi
6044 qemu_version=$(head $source_path/VERSION)
6045 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6046 echo "SRC_PATH=$source_path" >> $config_host_mak
6047 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6048 if test "$modules" = "yes"; then
6049   # $shacmd can generate a hash started with digit, which the compiler doesn't
6050   # like as an symbol. So prefix it with an underscore
6051   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6052   echo "CONFIG_MODULES=y" >> $config_host_mak
6053 fi
6054 if test "$module_upgrades" = "yes"; then
6055   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6056 fi
6057 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6058   echo "CONFIG_X11=y" >> $config_host_mak
6059   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6060   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6061 fi
6062 if test "$pipe2" = "yes" ; then
6063   echo "CONFIG_PIPE2=y" >> $config_host_mak
6064 fi
6065 if test "$accept4" = "yes" ; then
6066   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6067 fi
6068 if test "$splice" = "yes" ; then
6069   echo "CONFIG_SPLICE=y" >> $config_host_mak
6070 fi
6071 if test "$eventfd" = "yes" ; then
6072   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6073 fi
6074 if test "$memfd" = "yes" ; then
6075   echo "CONFIG_MEMFD=y" >> $config_host_mak
6076 fi
6077 if test "$have_usbfs" = "yes" ; then
6078   echo "CONFIG_USBFS=y" >> $config_host_mak
6079 fi
6080 if test "$fallocate" = "yes" ; then
6081   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6082 fi
6083 if test "$fallocate_punch_hole" = "yes" ; then
6084   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6085 fi
6086 if test "$fallocate_zero_range" = "yes" ; then
6087   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6088 fi
6089 if test "$posix_fallocate" = "yes" ; then
6090   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6091 fi
6092 if test "$sync_file_range" = "yes" ; then
6093   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6094 fi
6095 if test "$fiemap" = "yes" ; then
6096   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6097 fi
6098 if test "$dup3" = "yes" ; then
6099   echo "CONFIG_DUP3=y" >> $config_host_mak
6100 fi
6101 if test "$ppoll" = "yes" ; then
6102   echo "CONFIG_PPOLL=y" >> $config_host_mak
6103 fi
6104 if test "$prctl_pr_set_timerslack" = "yes" ; then
6105   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6106 fi
6107 if test "$epoll" = "yes" ; then
6108   echo "CONFIG_EPOLL=y" >> $config_host_mak
6109 fi
6110 if test "$epoll_create1" = "yes" ; then
6111   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6112 fi
6113 if test "$sendfile" = "yes" ; then
6114   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6115 fi
6116 if test "$timerfd" = "yes" ; then
6117   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6118 fi
6119 if test "$setns" = "yes" ; then
6120   echo "CONFIG_SETNS=y" >> $config_host_mak
6121 fi
6122 if test "$clock_adjtime" = "yes" ; then
6123   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6124 fi
6125 if test "$syncfs" = "yes" ; then
6126   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6127 fi
6128 if test "$kcov" = "yes" ; then
6129   echo "CONFIG_KCOV=y" >> $config_host_mak
6130 fi
6131 if test "$btrfs" = "yes" ; then
6132   echo "CONFIG_BTRFS=y" >> $config_host_mak
6133 fi
6134 if test "$inotify" = "yes" ; then
6135   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6136 fi
6137 if test "$inotify1" = "yes" ; then
6138   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6139 fi
6140 if test "$sem_timedwait" = "yes" ; then
6141   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6142 fi
6143 if test "$strchrnul" = "yes" ; then
6144   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6145 fi
6146 if test "$st_atim" = "yes" ; then
6147   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6148 fi
6149 if test "$byteswap_h" = "yes" ; then
6150   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6151 fi
6152 if test "$bswap_h" = "yes" ; then
6153   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6154 fi
6155 if test "$curl" = "yes" ; then
6156   echo "CONFIG_CURL=y" >> $config_host_mak
6157   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6158   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6159 fi
6160 if test "$brlapi" = "yes" ; then
6161   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6162   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6163 fi
6164 if test "$gtk" = "yes" ; then
6165   echo "CONFIG_GTK=y" >> $config_host_mak
6166   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6167   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6168   if test "$gtk_gl" = "yes" ; then
6169     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6170   fi
6171 fi
6172 if test "$gio" = "yes" ; then
6173     echo "CONFIG_GIO=y" >> $config_host_mak
6174     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6175     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6176     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6177 fi
6178 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6179 if test "$gnutls" = "yes" ; then
6180   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6181   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6182   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6183 fi
6184 if test "$gcrypt" = "yes" ; then
6185   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6186   if test "$gcrypt_hmac" = "yes" ; then
6187     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6188   fi
6189   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6190   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6191 fi
6192 if test "$nettle" = "yes" ; then
6193   echo "CONFIG_NETTLE=y" >> $config_host_mak
6194   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6195   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6196   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6197 fi
6198 if test "$qemu_private_xts" = "yes" ; then
6199   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6200 fi
6201 if test "$tasn1" = "yes" ; then
6202   echo "CONFIG_TASN1=y" >> $config_host_mak
6203 fi
6204 if test "$auth_pam" = "yes" ; then
6205     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6206 fi
6207 if test "$have_ifaddrs_h" = "yes" ; then
6208     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6209 fi
6210 if test "$have_drm_h" = "yes" ; then
6211   echo "HAVE_DRM_H=y" >> $config_host_mak
6212 fi
6213 if test "$have_broken_size_max" = "yes" ; then
6214     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6215 fi
6216 if test "$have_openpty" = "yes" ; then
6217     echo "HAVE_OPENPTY=y" >> $config_host_mak
6218 fi
6219 if test "$have_sys_signal_h" = "yes" ; then
6220     echo "HAVE_SYS_SIGNAL_H=y" >> $config_host_mak
6221 fi
6222
6223 # Work around a system header bug with some kernel/XFS header
6224 # versions where they both try to define 'struct fsxattr':
6225 # xfs headers will not try to redefine structs from linux headers
6226 # if this macro is set.
6227 if test "$have_fsxattr" = "yes" ; then
6228     echo "HAVE_FSXATTR=y" >> $config_host_mak
6229 fi
6230 if test "$have_copy_file_range" = "yes" ; then
6231     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6232 fi
6233 if test "$vte" = "yes" ; then
6234   echo "CONFIG_VTE=y" >> $config_host_mak
6235   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6236   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6237 fi
6238 if test "$virglrenderer" = "yes" ; then
6239   echo "CONFIG_VIRGL=y" >> $config_host_mak
6240   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6241   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6242 fi
6243 if test "$xen" = "enabled" ; then
6244   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6245   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6246   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6247   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6248 fi
6249 if test "$linux_aio" = "yes" ; then
6250   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6251 fi
6252 if test "$linux_io_uring" = "yes" ; then
6253   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6254   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6255   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6256 fi
6257 if test "$attr" = "yes" ; then
6258   echo "CONFIG_ATTR=y" >> $config_host_mak
6259   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6260 fi
6261 if test "$libattr" = "yes" ; then
6262   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6263 fi
6264 if test "$virtfs" = "yes" ; then
6265   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6266 fi
6267 if test "$vhost_scsi" = "yes" ; then
6268   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6269 fi
6270 if test "$vhost_net" = "yes" ; then
6271   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6272 fi
6273 if test "$vhost_net_user" = "yes" ; then
6274   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6275 fi
6276 if test "$vhost_net_vdpa" = "yes" ; then
6277   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6278 fi
6279 if test "$vhost_crypto" = "yes" ; then
6280   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6281 fi
6282 if test "$vhost_vsock" = "yes" ; then
6283   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6284   if test "$vhost_user" = "yes" ; then
6285     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6286   fi
6287 fi
6288 if test "$vhost_kernel" = "yes" ; then
6289   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6290 fi
6291 if test "$vhost_user" = "yes" ; then
6292   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6293 fi
6294 if test "$vhost_vdpa" = "yes" ; then
6295   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6296 fi
6297 if test "$vhost_user_fs" = "yes" ; then
6298   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6299 fi
6300 if test "$blobs" = "yes" ; then
6301   echo "INSTALL_BLOBS=yes" >> $config_host_mak
6302 fi
6303 if test "$iovec" = "yes" ; then
6304   echo "CONFIG_IOVEC=y" >> $config_host_mak
6305 fi
6306 if test "$preadv" = "yes" ; then
6307   echo "CONFIG_PREADV=y" >> $config_host_mak
6308 fi
6309 if test "$membarrier" = "yes" ; then
6310   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6311 fi
6312 if test "$signalfd" = "yes" ; then
6313   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6314 fi
6315 if test "$optreset" = "yes" ; then
6316   echo "HAVE_OPTRESET=y" >> $config_host_mak
6317 fi
6318 if test "$tcg" = "enabled"; then
6319   if test "$tcg_interpreter" = "yes" ; then
6320     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6321   fi
6322 fi
6323 if test "$fdatasync" = "yes" ; then
6324   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6325 fi
6326 if test "$madvise" = "yes" ; then
6327   echo "CONFIG_MADVISE=y" >> $config_host_mak
6328 fi
6329 if test "$posix_madvise" = "yes" ; then
6330   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6331 fi
6332 if test "$posix_memalign" = "yes" ; then
6333   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6334 fi
6335 if test "$spice" = "yes" ; then
6336   echo "CONFIG_SPICE=y" >> $config_host_mak
6337   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6338   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6339 fi
6340
6341 if test "$smartcard" = "yes" ; then
6342   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6343   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6344   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6345 fi
6346
6347 if test "$libusb" = "yes" ; then
6348   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6349   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6350   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6351 fi
6352
6353 if test "$usb_redir" = "yes" ; then
6354   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6355   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6356   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6357 fi
6358
6359 if test "$opengl" = "yes" ; then
6360   echo "CONFIG_OPENGL=y" >> $config_host_mak
6361   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
6362   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6363   if test "$opengl_dmabuf" = "yes" ; then
6364     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6365   fi
6366 fi
6367
6368 if test "$gbm" = "yes" ; then
6369     echo "CONFIG_GBM=y" >> $config_host_mak
6370     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6371     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6372 fi
6373
6374
6375 if test "$avx2_opt" = "yes" ; then
6376   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
6377 fi
6378
6379 if test "$avx512f_opt" = "yes" ; then
6380   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
6381 fi
6382
6383 if test "$lzo" = "yes" ; then
6384   echo "CONFIG_LZO=y" >> $config_host_mak
6385   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
6386 fi
6387
6388 if test "$snappy" = "yes" ; then
6389   echo "CONFIG_SNAPPY=y" >> $config_host_mak
6390   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
6391 fi
6392
6393 if test "$bzip2" = "yes" ; then
6394   echo "CONFIG_BZIP2=y" >> $config_host_mak
6395   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
6396 fi
6397
6398 if test "$lzfse" = "yes" ; then
6399   echo "CONFIG_LZFSE=y" >> $config_host_mak
6400   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
6401 fi
6402
6403 if test "$zstd" = "yes" ; then
6404   echo "CONFIG_ZSTD=y" >> $config_host_mak
6405   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
6406   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
6407 fi
6408
6409 if test "$libiscsi" = "yes" ; then
6410   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
6411   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
6412   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
6413 fi
6414
6415 if test "$libnfs" = "yes" ; then
6416   echo "CONFIG_LIBNFS=y" >> $config_host_mak
6417   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
6418 fi
6419
6420 if test "$seccomp" = "yes"; then
6421   echo "CONFIG_SECCOMP=y" >> $config_host_mak
6422   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
6423   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
6424 fi
6425
6426 # XXX: suppress that
6427 if [ "$bsd" = "yes" ] ; then
6428   echo "CONFIG_BSD=y" >> $config_host_mak
6429 fi
6430
6431 if test "$qom_cast_debug" = "yes" ; then
6432   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
6433 fi
6434 if test "$rbd" = "yes" ; then
6435   echo "CONFIG_RBD=y" >> $config_host_mak
6436   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
6437 fi
6438
6439 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
6440 if test "$coroutine_pool" = "yes" ; then
6441   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
6442 else
6443   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
6444 fi
6445
6446 if test "$debug_stack_usage" = "yes" ; then
6447   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
6448 fi
6449
6450 if test "$crypto_afalg" = "yes" ; then
6451   echo "CONFIG_AF_ALG=y" >> $config_host_mak
6452 fi
6453
6454 if test "$open_by_handle_at" = "yes" ; then
6455   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
6456 fi
6457
6458 if test "$linux_magic_h" = "yes" ; then
6459   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
6460 fi
6461
6462 if test "$valgrind_h" = "yes" ; then
6463   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
6464 fi
6465
6466 if test "$have_asan_iface_fiber" = "yes" ; then
6467     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
6468 fi
6469
6470 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
6471     echo "CONFIG_TSAN=y" >> $config_host_mak
6472 fi
6473
6474 if test "$has_environ" = "yes" ; then
6475   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
6476 fi
6477
6478 if test "$cpuid_h" = "yes" ; then
6479   echo "CONFIG_CPUID_H=y" >> $config_host_mak
6480 fi
6481
6482 if test "$int128" = "yes" ; then
6483   echo "CONFIG_INT128=y" >> $config_host_mak
6484 fi
6485
6486 if test "$atomic128" = "yes" ; then
6487   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
6488 fi
6489
6490 if test "$cmpxchg128" = "yes" ; then
6491   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
6492 fi
6493
6494 if test "$atomic64" = "yes" ; then
6495   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
6496 fi
6497
6498 if test "$attralias" = "yes" ; then
6499   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
6500 fi
6501
6502 if test "$getauxval" = "yes" ; then
6503   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
6504 fi
6505
6506 if test "$glusterfs" = "yes" ; then
6507   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
6508   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
6509   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
6510 fi
6511
6512 if test "$glusterfs_xlator_opt" = "yes" ; then
6513   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
6514 fi
6515
6516 if test "$glusterfs_discard" = "yes" ; then
6517   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
6518 fi
6519
6520 if test "$glusterfs_fallocate" = "yes" ; then
6521   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
6522 fi
6523
6524 if test "$glusterfs_zerofill" = "yes" ; then
6525   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
6526 fi
6527
6528 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
6529   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
6530 fi
6531
6532 if test "$glusterfs_iocb_has_stat" = "yes" ; then
6533   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
6534 fi
6535
6536 if test "$libssh" = "yes" ; then
6537   echo "CONFIG_LIBSSH=y" >> $config_host_mak
6538   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
6539   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
6540 fi
6541
6542 if test "$live_block_migration" = "yes" ; then
6543   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
6544 fi
6545
6546 if test "$tpm" = "yes"; then
6547   echo 'CONFIG_TPM=y' >> $config_host_mak
6548 fi
6549
6550 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
6551 if have_backend "nop"; then
6552   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
6553 fi
6554 if have_backend "simple"; then
6555   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
6556   # Set the appropriate trace file.
6557   trace_file="\"$trace_file-\" FMT_pid"
6558 fi
6559 if have_backend "log"; then
6560   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
6561 fi
6562 if have_backend "ust"; then
6563   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
6564   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
6565   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
6566 fi
6567 if have_backend "dtrace"; then
6568   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
6569   if test "$trace_backend_stap" = "yes" ; then
6570     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
6571   fi
6572 fi
6573 if have_backend "ftrace"; then
6574   if test "$linux" = "yes" ; then
6575     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
6576   else
6577     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
6578   fi
6579 fi
6580 if have_backend "syslog"; then
6581   if test "$posix_syslog" = "yes" ; then
6582     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
6583   else
6584     feature_not_found "syslog(trace backend)" "syslog not available"
6585   fi
6586 fi
6587 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6588
6589 if test "$rdma" = "yes" ; then
6590   echo "CONFIG_RDMA=y" >> $config_host_mak
6591   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6592 fi
6593
6594 if test "$pvrdma" = "yes" ; then
6595   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6596 fi
6597
6598 if test "$have_rtnetlink" = "yes" ; then
6599   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6600 fi
6601
6602 if test "$libxml2" = "yes" ; then
6603   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6604   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6605   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6606 fi
6607
6608 if test "$replication" = "yes" ; then
6609   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6610 fi
6611
6612 if test "$have_af_vsock" = "yes" ; then
6613   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6614 fi
6615
6616 if test "$have_sysmacros" = "yes" ; then
6617   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6618 fi
6619
6620 if test "$have_static_assert" = "yes" ; then
6621   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6622 fi
6623
6624 if test "$have_utmpx" = "yes" ; then
6625   echo "HAVE_UTMPX=y" >> $config_host_mak
6626 fi
6627 if test "$have_getrandom" = "yes" ; then
6628   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6629 fi
6630 if test "$ivshmem" = "yes" ; then
6631   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6632 fi
6633 if test "$debug_mutex" = "yes" ; then
6634   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6635 fi
6636
6637 # Hold two types of flag:
6638 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6639 #                                     a thread we have a handle to
6640 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6641 #                                     platform
6642 if test "$pthread_setname_np_w_tid" = "yes" ; then
6643   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6644   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6645 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6646   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6647   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6648 fi
6649
6650 if test "$libpmem" = "yes" ; then
6651   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6652   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6653   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6654 fi
6655
6656 if test "$libdaxctl" = "yes" ; then
6657   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6658   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6659 fi
6660
6661 if test "$bochs" = "yes" ; then
6662   echo "CONFIG_BOCHS=y" >> $config_host_mak
6663 fi
6664 if test "$cloop" = "yes" ; then
6665   echo "CONFIG_CLOOP=y" >> $config_host_mak
6666 fi
6667 if test "$dmg" = "yes" ; then
6668   echo "CONFIG_DMG=y" >> $config_host_mak
6669 fi
6670 if test "$qcow1" = "yes" ; then
6671   echo "CONFIG_QCOW1=y" >> $config_host_mak
6672 fi
6673 if test "$vdi" = "yes" ; then
6674   echo "CONFIG_VDI=y" >> $config_host_mak
6675 fi
6676 if test "$vvfat" = "yes" ; then
6677   echo "CONFIG_VVFAT=y" >> $config_host_mak
6678 fi
6679 if test "$qed" = "yes" ; then
6680   echo "CONFIG_QED=y" >> $config_host_mak
6681 fi
6682 if test "$parallels" = "yes" ; then
6683   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6684 fi
6685 if test "$sheepdog" = "yes" ; then
6686   add_to deprecated_features "sheepdog"
6687   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6688 fi
6689 if test "$pty_h" = "yes" ; then
6690   echo "HAVE_PTY_H=y" >> $config_host_mak
6691 fi
6692 if test "$have_mlockall" = "yes" ; then
6693   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6694 fi
6695 if test "$fuzzing" = "yes" ; then
6696   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6697   # needed CFLAGS have already been provided
6698   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6699     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6700     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6701   else
6702     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6703   fi
6704 fi
6705
6706 if test "$plugins" = "yes" ; then
6707     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6708     # Copy the export object list to the build dir
6709     if test "$ld_dynamic_list" = "yes" ; then
6710         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6711         ld_symbols=qemu-plugins-ld.symbols
6712         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6713     elif test "$ld_exported_symbols_list" = "yes" ; then
6714         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6715         ld64_symbols=qemu-plugins-ld64.symbols
6716         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6717         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6718             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6719     else
6720         error_exit \
6721             "If \$plugins=yes, either \$ld_dynamic_list or " \
6722             "\$ld_exported_symbols_list should have been set to 'yes'."
6723     fi
6724 fi
6725
6726 if test -n "$gdb_bin" ; then
6727     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6728 fi
6729
6730 if test "$secret_keyring" = "yes" ; then
6731   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6732 fi
6733
6734 echo "ROMS=$roms" >> $config_host_mak
6735 echo "MAKE=$make" >> $config_host_mak
6736 echo "PYTHON=$python" >> $config_host_mak
6737 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6738 echo "MESON=$meson" >> $config_host_mak
6739 echo "NINJA=$ninja" >> $config_host_mak
6740 echo "CC=$cc" >> $config_host_mak
6741 if $iasl -h > /dev/null 2>&1; then
6742   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6743 fi
6744 echo "CXX=$cxx" >> $config_host_mak
6745 echo "OBJCC=$objcc" >> $config_host_mak
6746 echo "AR=$ar" >> $config_host_mak
6747 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6748 echo "AS=$as" >> $config_host_mak
6749 echo "CCAS=$ccas" >> $config_host_mak
6750 echo "CPP=$cpp" >> $config_host_mak
6751 echo "OBJCOPY=$objcopy" >> $config_host_mak
6752 echo "LD=$ld" >> $config_host_mak
6753 echo "RANLIB=$ranlib" >> $config_host_mak
6754 echo "NM=$nm" >> $config_host_mak
6755 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6756 echo "WINDRES=$windres" >> $config_host_mak
6757 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6758 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6759 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6760 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6761 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6762 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6763 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
6764 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6765 echo "PTHREAD_LIB=$PTHREAD_LIB" >> $config_host_mak
6766 echo "EXESUF=$EXESUF" >> $config_host_mak
6767 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6768 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6769 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6770 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6771 if test "$gcov" = "yes" ; then
6772   echo "CONFIG_GCOV=y" >> $config_host_mak
6773 fi
6774
6775 if test "$fuzzing" != "no"; then
6776     echo "CONFIG_FUZZ=y" >> $config_host_mak
6777 fi
6778 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6779
6780 if test "$edk2_blobs" = "yes" ; then
6781   echo "DECOMPRESS_EDK2_BLOBS=y" >> $config_host_mak
6782 fi
6783
6784 if test "$rng_none" = "yes"; then
6785   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6786 fi
6787
6788 # use included Linux headers
6789 if test "$linux" = "yes" ; then
6790   mkdir -p linux-headers
6791   case "$cpu" in
6792   i386|x86_64|x32)
6793     linux_arch=x86
6794     ;;
6795   ppc|ppc64|ppc64le)
6796     linux_arch=powerpc
6797     ;;
6798   s390x)
6799     linux_arch=s390
6800     ;;
6801   aarch64)
6802     linux_arch=arm64
6803     ;;
6804   mips64)
6805     linux_arch=mips
6806     ;;
6807   *)
6808     # For most CPUs the kernel architecture name and QEMU CPU name match.
6809     linux_arch="$cpu"
6810     ;;
6811   esac
6812     # For non-KVM architectures we will not have asm headers
6813     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6814       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6815     fi
6816 fi
6817
6818 for target in $target_list; do
6819     target_dir="$target"
6820     target_name=$(echo $target | cut -d '-' -f 1)
6821     mkdir -p $target_dir
6822     case $target in
6823         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6824         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6825     esac
6826 done
6827
6828 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6829 if test "$default_targets" = "yes"; then
6830   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6831 fi
6832
6833 if test "$numa" = "yes"; then
6834   echo "CONFIG_NUMA=y" >> $config_host_mak
6835   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6836 fi
6837
6838 if test "$ccache_cpp2" = "yes"; then
6839   echo "export CCACHE_CPP2=y" >> $config_host_mak
6840 fi
6841
6842 if test "$safe_stack" = "yes"; then
6843   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6844 fi
6845
6846 # If we're using a separate build tree, set it up now.
6847 # DIRS are directories which we simply mkdir in the build tree;
6848 # LINKS are things to symlink back into the source tree
6849 # (these can be both files and directories).
6850 # Caution: do not add files or directories here using wildcards. This
6851 # will result in problems later if a new file matching the wildcard is
6852 # added to the source tree -- nothing will cause configure to be rerun
6853 # so the build tree will be missing the link back to the new file, and
6854 # tests might fail. Prefer to keep the relevant files in their own
6855 # directory and symlink the directory instead.
6856 # UNLINK is used to remove symlinks from older development versions
6857 # that might get into the way when doing "git update" without doing
6858 # a "make distclean" in between.
6859 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6860 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6861 DIRS="$DIRS docs docs/interop fsdev scsi"
6862 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6863 DIRS="$DIRS roms/seabios"
6864 DIRS="$DIRS contrib/plugins/"
6865 LINKS="Makefile"
6866 LINKS="$LINKS tests/tcg/lm32/Makefile"
6867 LINKS="$LINKS tests/tcg/Makefile.target"
6868 LINKS="$LINKS pc-bios/optionrom/Makefile"
6869 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6870 LINKS="$LINKS roms/seabios/Makefile"
6871 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6872 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6873 LINKS="$LINKS tests/acceptance tests/data"
6874 LINKS="$LINKS tests/qemu-iotests/check"
6875 LINKS="$LINKS python"
6876 LINKS="$LINKS contrib/plugins/Makefile "
6877 UNLINK="pc-bios/keymaps"
6878 for bios_file in \
6879     $source_path/pc-bios/*.bin \
6880     $source_path/pc-bios/*.elf \
6881     $source_path/pc-bios/*.lid \
6882     $source_path/pc-bios/*.rom \
6883     $source_path/pc-bios/*.dtb \
6884     $source_path/pc-bios/*.img \
6885     $source_path/pc-bios/openbios-* \
6886     $source_path/pc-bios/u-boot.* \
6887     $source_path/pc-bios/edk2-*.fd.bz2 \
6888     $source_path/pc-bios/palcode-*
6889 do
6890     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6891 done
6892 mkdir -p $DIRS
6893 for f in $LINKS ; do
6894     if [ -e "$source_path/$f" ]; then
6895         symlink "$source_path/$f" "$f"
6896     fi
6897 done
6898 for f in $UNLINK ; do
6899     if [ -L "$f" ]; then
6900         rm -f "$f"
6901     fi
6902 done
6903
6904 (for i in $cross_cc_vars; do
6905   export $i
6906 done
6907 export target_list source_path use_containers
6908 $source_path/tests/tcg/configure.sh)
6909
6910 # temporary config to build submodules
6911 for rom in seabios; do
6912     config_mak=roms/$rom/config.mak
6913     echo "# Automatically generated by configure - do not modify" > $config_mak
6914     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6915     echo "AS=$as" >> $config_mak
6916     echo "CCAS=$ccas" >> $config_mak
6917     echo "CC=$cc" >> $config_mak
6918     echo "BCC=bcc" >> $config_mak
6919     echo "CPP=$cpp" >> $config_mak
6920     echo "OBJCOPY=objcopy" >> $config_mak
6921     echo "IASL=$iasl" >> $config_mak
6922     echo "LD=$ld" >> $config_mak
6923     echo "RANLIB=$ranlib" >> $config_mak
6924 done
6925
6926 # set up qemu-iotests in this build directory
6927 iotests_common_env="tests/qemu-iotests/common.env"
6928
6929 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
6930 echo >> "$iotests_common_env"
6931 echo "export PYTHON='$python'" >> "$iotests_common_env"
6932
6933 if test "$skip_meson" = no; then
6934 cross="config-meson.cross.new"
6935 meson_quote() {
6936     echo "'$(echo $* | sed "s/ /','/g")'"
6937 }
6938
6939 echo "# Automatically generated by configure - do not modify" > $cross
6940 echo "[properties]" >> $cross
6941 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6942 echo "[built-in options]" >> $cross
6943 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6944 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6945 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6946 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6947 echo "[binaries]" >> $cross
6948 echo "c = [$(meson_quote $cc)]" >> $cross
6949 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6950 echo "ar = [$(meson_quote $ar)]" >> $cross
6951 echo "nm = [$(meson_quote $nm)]" >> $cross
6952 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6953 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6954 if has $sdl2_config; then
6955   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6956 fi
6957 echo "strip = [$(meson_quote $strip)]" >> $cross
6958 echo "windres = [$(meson_quote $windres)]" >> $cross
6959 if test -n "$cross_prefix"; then
6960     cross_arg="--cross-file config-meson.cross"
6961     echo "[host_machine]" >> $cross
6962     if test "$mingw32" = "yes" ; then
6963         echo "system = 'windows'" >> $cross
6964     fi
6965     if test "$linux" = "yes" ; then
6966         echo "system = 'linux'" >> $cross
6967     fi
6968     case "$ARCH" in
6969         i386|x86_64)
6970             echo "cpu_family = 'x86'" >> $cross
6971             ;;
6972         ppc64le)
6973             echo "cpu_family = 'ppc64'" >> $cross
6974             ;;
6975         *)
6976             echo "cpu_family = '$ARCH'" >> $cross
6977             ;;
6978     esac
6979     echo "cpu = '$cpu'" >> $cross
6980     if test "$bigendian" = "yes" ; then
6981         echo "endian = 'big'" >> $cross
6982     else
6983         echo "endian = 'little'" >> $cross
6984     fi
6985 else
6986     cross_arg="--native-file config-meson.cross"
6987 fi
6988 mv $cross config-meson.cross
6989
6990 rm -rf meson-private meson-info meson-logs
6991 NINJA=$ninja $meson setup \
6992         --prefix "$prefix" \
6993         --libdir "$libdir" \
6994         --libexecdir "$libexecdir" \
6995         --bindir "$bindir" \
6996         --includedir "$includedir" \
6997         --datadir "$datadir" \
6998         --mandir "$mandir" \
6999         --sysconfdir "$sysconfdir" \
7000         --localstatedir "$local_statedir" \
7001         -Ddocdir="$docdir" \
7002         -Dqemu_suffix="$qemu_suffix" \
7003         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
7004         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
7005         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
7006         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
7007         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
7008         -Db_staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi) \
7009         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
7010         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
7011         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
7012         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
7013         -Dcocoa=$cocoa -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
7014         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
7015         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f \
7016         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt \
7017         -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
7018         -Ddocs=$docs -Dsphinx_build=$sphinx_build \
7019         $cross_arg \
7020         "$PWD" "$source_path"
7021
7022 if test "$?" -ne 0 ; then
7023     error_exit "meson setup failed"
7024 fi
7025 fi
7026
7027 if test -n "${deprecated_features}"; then
7028     echo "Warning, deprecated features enabled."
7029     echo "Please see docs/system/deprecated.rst"
7030     echo "  features: ${deprecated_features}"
7031 fi
7032
7033 # Save the configure command line for later reuse.
7034 cat <<EOD >config.status
7035 #!/bin/sh
7036 # Generated by configure.
7037 # Run this file to recreate the current configuration.
7038 # Compiler output produced by configure, useful for debugging
7039 # configure, is in config.log if it exists.
7040 EOD
7041
7042 preserve_env() {
7043     envname=$1
7044
7045     eval envval=\$$envname
7046
7047     if test -n "$envval"
7048     then
7049         echo "$envname='$envval'" >> config.status
7050         echo "export $envname" >> config.status
7051     else
7052         echo "unset $envname" >> config.status
7053     fi
7054 }
7055
7056 # Preserve various env variables that influence what
7057 # features/build target configure will detect
7058 preserve_env AR
7059 preserve_env AS
7060 preserve_env CC
7061 preserve_env CPP
7062 preserve_env CXX
7063 preserve_env INSTALL
7064 preserve_env LD
7065 preserve_env LD_LIBRARY_PATH
7066 preserve_env LIBTOOL
7067 preserve_env MAKE
7068 preserve_env NM
7069 preserve_env OBJCOPY
7070 preserve_env PATH
7071 preserve_env PKG_CONFIG
7072 preserve_env PKG_CONFIG_LIBDIR
7073 preserve_env PKG_CONFIG_PATH
7074 preserve_env PYTHON
7075 preserve_env SDL2_CONFIG
7076 preserve_env SMBD
7077 preserve_env STRIP
7078 preserve_env WINDRES
7079
7080 printf "exec" >>config.status
7081 for i in "$0" "$@"; do
7082   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
7083 done
7084 echo ' "$@"' >>config.status
7085 chmod +x config.status
7086
7087 rm -r "$TMPDIR1"