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 virtiofsd="auto"
 306 virtfs=""
 307 libudev="auto"
 308 mpath="auto"
 309 vnc="enabled"
 310 sparse="auto"
 311 vde=""
 312 vnc_sasl="auto"
 313 vnc_jpeg="auto"
 314 vnc_png="auto"
 315 xkbcommon="auto"
 316 xen=""
 317 xen_ctrl_version=""
 318 xen_pci_passthrough="auto"
 319 linux_aio=""
 320 linux_io_uring=""
 321 cap_ng=""
 322 attr=""
 323 libattr=""
 324 xfs=""
 325 tcg="enabled"
 326 membarrier=""
 327 vhost_net=""
 328 vhost_crypto=""
 329 vhost_scsi=""
 330 vhost_vsock=""
 331 vhost_user="no"
 332 vhost_user_blk_server="auto"
 333 vhost_user_fs=""
 334 kvm="auto"
 335 hax="auto"
 336 hvf="auto"
 337 whpx="auto"
 338 rdma=""
 339 pvrdma=""
 340 gprof="no"
 341 debug_tcg="no"
 342 debug="no"
 343 sanitizers="no"
 344 tsan="no"
 345 fortify_source=""
 346 strip_opt="yes"
 347 tcg_interpreter="no"
 348 bigendian="no"
 349 mingw32="no"
 350 gcov="no"
 351 EXESUF=""
 352 HOST_DSOSUF=".so"
 353 modules="no"
 354 module_upgrades="no"
 355 prefix="/usr/local"
 356 qemu_suffix="qemu"
 357 slirp="auto"
 358 oss_lib=""
 359 bsd="no"
 360 linux="no"
 361 solaris="no"
 362 profiler="no"
 363 cocoa="auto"
 364 softmmu="yes"
 365 linux_user="no"
 366 bsd_user="no"
 367 blobs="true"
 368 pkgversion=""
 369 pie=""
 370 qom_cast_debug="yes"
 371 trace_backends="log"
 372 trace_file="trace"
 373 spice=""
 374 rbd=""
 375 smartcard=""
 376 u2f="auto"
 377 libusb=""
 378 usb_redir=""
 379 opengl=""
 380 opengl_dmabuf="no"
 381 cpuid_h="no"
 382 avx2_opt=""
 383 capstone="auto"
 384 lzo=""
 385 snappy=""
 386 bzip2=""
 387 lzfse=""
 388 zstd=""
 389 guest_agent=""
 390 guest_agent_with_vss="no"
 391 guest_agent_ntddscsi="no"
 392 guest_agent_msi=""
 393 vss_win32_sdk=""
 394 win_sdk="no"
 395 want_tools=""
 396 libiscsi=""
 397 libnfs=""
 398 coroutine=""
 399 coroutine_pool=""
 400 debug_stack_usage="no"
 401 crypto_afalg="no"
 402 seccomp=""
 403 glusterfs=""
 404 glusterfs_xlator_opt="no"
 405 glusterfs_discard="no"
 406 glusterfs_fallocate="no"
 407 glusterfs_zerofill="no"
 408 glusterfs_ftruncate_has_stat="no"
 409 glusterfs_iocb_has_stat="no"
 410 gtk=""
 411 gtk_gl="no"
 412 tls_priority="NORMAL"
 413 gnutls=""
 414 nettle=""
 415 nettle_xts="no"
 416 gcrypt=""
 417 gcrypt_hmac="no"
 418 gcrypt_xts="no"
 419 qemu_private_xts="yes"
 420 auth_pam=""
 421 vte=""
 422 virglrenderer=""
 423 tpm=""
 424 libssh=""
 425 live_block_migration="yes"
 426 numa=""
 427 tcmalloc="no"
 428 jemalloc="no"
 429 replication="yes"
 430 bochs="yes"
 431 cloop="yes"
 432 dmg="yes"
 433 qcow1="yes"
 434 vdi="yes"
 435 vvfat="yes"
 436 qed="yes"
 437 parallels="yes"
 438 sheepdog="no"
 439 libxml2=""
 440 debug_mutex="no"
 441 libpmem=""
 442 default_devices="yes"
 443 plugins="no"
 444 fuzzing="no"
 445 rng_none="no"
 446 secret_keyring=""
 447 libdaxctl=""
 448 meson=""
 449 ninja=""
 450 skip_meson=no
 451 gettext=""
 452 fuse="auto"
 453
 454 bogus_os="no"
 455 malloc_trim="auto"
 456
 457 # parse CC options first
 458 for opt do
 459   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 460   case "$opt" in
 461   --cross-prefix=*) cross_prefix="$optarg"
 462   ;;
 463   --cc=*) CC="$optarg"
 464   ;;
 465   --cxx=*) CXX="$optarg"
 466   ;;
 467   --cpu=*) cpu="$optarg"
 468   ;;
 469   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 470                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 471   ;;
 472   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 473   ;;
 474   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 475                      EXTRA_LDFLAGS="$optarg"
 476   ;;
 477   --enable-debug-info) debug_info="yes"
 478   ;;
 479   --disable-debug-info) debug_info="no"
 480   ;;
 481   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 482   ;;
 483   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 484                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 485                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 486   ;;
 487   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 488                 cc_archs="$cc_archs $cc_arch"
 489                 eval "cross_cc_${cc_arch}=\$optarg"
 490                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 491   ;;
 492   esac
 493 done
 494 # OS specific
 495 # Using uname is really, really broken.  Once we have the right set of checks
 496 # we can eliminate its usage altogether.
 497
 498 # Preferred compiler:
 499 #  ${CC} (if set)
 500 #  ${cross_prefix}gcc (if cross-prefix specified)
 501 #  system compiler
 502 if test -z "${CC}${cross_prefix}"; then
 503   cc="$host_cc"
 504 else
 505   cc="${CC-${cross_prefix}gcc}"
 506 fi
 507
 508 if test -z "${CXX}${cross_prefix}"; then
 509   cxx="c++"
 510 else
 511   cxx="${CXX-${cross_prefix}g++}"
 512 fi
 513
 514 ar="${AR-${cross_prefix}ar}"
 515 as="${AS-${cross_prefix}as}"
 516 ccas="${CCAS-$cc}"
 517 cpp="${CPP-$cc -E}"
 518 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 519 ld="${LD-${cross_prefix}ld}"
 520 ranlib="${RANLIB-${cross_prefix}ranlib}"
 521 nm="${NM-${cross_prefix}nm}"
 522 strip="${STRIP-${cross_prefix}strip}"
 523 windres="${WINDRES-${cross_prefix}windres}"
 524 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 525 query_pkg_config() {
 526     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 527 }
 528 pkg_config=query_pkg_config
 529 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 530
 531 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 532 ARFLAGS="${ARFLAGS-rv}"
 533
 534 # default flags for all hosts
 535 # We use -fwrapv to tell the compiler that we require a C dialect where
 536 # left shift of signed integers is well defined and has the expected
 537 # 2s-complement style results. (Both clang and gcc agree that it
 538 # provides these semantics.)
 539 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 540 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 541 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 542 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 543
 544 # Flags that are needed during configure but later taken care of by Meson
 545 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 546 CONFIGURE_LDFLAGS=
 547
 548
 549 check_define() {
 550 cat > $TMPC <<EOF
 551 #if !defined($1)
 552 #error $1 not defined
 553 #endif
 554 int main(void) { return 0; }
 555 EOF
 556   compile_object
 557 }
 558
 559 check_include() {
 560 cat > $TMPC <<EOF
 561 #include <$1>
 562 int main(void) { return 0; }
 563 EOF
 564   compile_object
 565 }
 566
 567 write_c_skeleton() {
 568     cat > $TMPC <<EOF
 569 int main(void) { return 0; }
 570 EOF
 571 }
 572
 573 write_c_fuzzer_skeleton() {
 574     cat > $TMPC <<EOF
 575 #include <stdint.h>
 576 #include <sys/types.h>
 577 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 578 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 579 EOF
 580 }
 581
 582 if check_define __linux__ ; then
 583   targetos="Linux"
 584 elif check_define _WIN32 ; then
 585   targetos='MINGW32'
 586 elif check_define __OpenBSD__ ; then
 587   targetos='OpenBSD'
 588 elif check_define __sun__ ; then
 589   targetos='SunOS'
 590 elif check_define __HAIKU__ ; then
 591   targetos='Haiku'
 592 elif check_define __FreeBSD__ ; then
 593   targetos='FreeBSD'
 594 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 595   targetos='GNU/kFreeBSD'
 596 elif check_define __DragonFly__ ; then
 597   targetos='DragonFly'
 598 elif check_define __NetBSD__; then
 599   targetos='NetBSD'
 600 elif check_define __APPLE__; then
 601   targetos='Darwin'
 602 else
 603   # This is a fatal error, but don't report it yet, because we
 604   # might be going to just print the --help text, or it might
 605   # be the result of a missing compiler.
 606   targetos='bogus'
 607   bogus_os='yes'
 608 fi
 609
 610 # Some host OSes need non-standard checks for which CPU to use.
 611 # Note that these checks are broken for cross-compilation: if you're
 612 # cross-compiling to one of these OSes then you'll need to specify
 613 # the correct CPU with the --cpu option.
 614 case $targetos in
 615 Darwin)
 616   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 617   # run 64-bit userspace code.
 618   # If the user didn't specify a CPU explicitly and the kernel says this is
 619   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 620   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 621     cpu="x86_64"
 622   fi
 623   HOST_DSOSUF=".dylib"
 624   ;;
 625 SunOS)
 626   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 627   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 628     cpu="x86_64"
 629   fi
 630 esac
 631
 632 if test ! -z "$cpu" ; then
 633   # command line argument
 634   :
 635 elif check_define __i386__ ; then
 636   cpu="i386"
 637 elif check_define __x86_64__ ; then
 638   if check_define __ILP32__ ; then
 639     cpu="x32"
 640   else
 641     cpu="x86_64"
 642   fi
 643 elif check_define __sparc__ ; then
 644   if check_define __arch64__ ; then
 645     cpu="sparc64"
 646   else
 647     cpu="sparc"
 648   fi
 649 elif check_define _ARCH_PPC ; then
 650   if check_define _ARCH_PPC64 ; then
 651     if check_define _LITTLE_ENDIAN ; then
 652       cpu="ppc64le"
 653     else
 654       cpu="ppc64"
 655     fi
 656   else
 657     cpu="ppc"
 658   fi
 659 elif check_define __mips__ ; then
 660   cpu="mips"
 661 elif check_define __s390__ ; then
 662   if check_define __s390x__ ; then
 663     cpu="s390x"
 664   else
 665     cpu="s390"
 666   fi
 667 elif check_define __riscv ; then
 668   if check_define _LP64 ; then
 669     cpu="riscv64"
 670   else
 671     cpu="riscv32"
 672   fi
 673 elif check_define __arm__ ; then
 674   cpu="arm"
 675 elif check_define __aarch64__ ; then
 676   cpu="aarch64"
 677 else
 678   cpu=$(uname -m)
 679 fi
 680
 681 ARCH=
 682 # Normalise host CPU name and set ARCH.
 683 # Note that this case should only have supported host CPUs, not guests.
 684 case "$cpu" in
 685   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 686   ;;
 687   ppc64le)
 688     ARCH="ppc64"
 689   ;;
 690   i386|i486|i586|i686|i86pc|BePC)
 691     cpu="i386"
 692   ;;
 693   x86_64|amd64)
 694     cpu="x86_64"
 695   ;;
 696   armv*b|armv*l|arm)
 697     cpu="arm"
 698   ;;
 699   aarch64)
 700     cpu="aarch64"
 701   ;;
 702   mips*)
 703     cpu="mips"
 704   ;;
 705   sparc|sun4[cdmuv])
 706     cpu="sparc"
 707   ;;
 708   *)
 709     # This will result in either an error or falling back to TCI later
 710     ARCH=unknown
 711   ;;
 712 esac
 713 if test -z "$ARCH"; then
 714   ARCH="$cpu"
 715 fi
 716
 717 # OS specific
 718
 719 case $targetos in
 720 MINGW32*)
 721   mingw32="yes"
 722   audio_possible_drivers="dsound sdl"
 723   if check_include dsound.h; then
 724     audio_drv_list="dsound"
 725   else
 726     audio_drv_list=""
 727   fi
 728   supported_os="yes"
 729   pie="no"
 730 ;;
 731 GNU/kFreeBSD)
 732   bsd="yes"
 733   audio_drv_list="oss try-sdl"
 734   audio_possible_drivers="oss sdl pa"
 735 ;;
 736 FreeBSD)
 737   bsd="yes"
 738   make="${MAKE-gmake}"
 739   audio_drv_list="oss try-sdl"
 740   audio_possible_drivers="oss sdl pa"
 741   # needed for kinfo_getvmmap(3) in libutil.h
 742   netmap=""  # enable netmap autodetect
 743 ;;
 744 DragonFly)
 745   bsd="yes"
 746   make="${MAKE-gmake}"
 747   audio_drv_list="oss try-sdl"
 748   audio_possible_drivers="oss sdl pa"
 749 ;;
 750 NetBSD)
 751   bsd="yes"
 752   make="${MAKE-gmake}"
 753   audio_drv_list="oss try-sdl"
 754   audio_possible_drivers="oss sdl"
 755   oss_lib="-lossaudio"
 756 ;;
 757 OpenBSD)
 758   bsd="yes"
 759   make="${MAKE-gmake}"
 760   audio_drv_list="try-sdl"
 761   audio_possible_drivers="sdl"
 762 ;;
 763 Darwin)
 764   bsd="yes"
 765   darwin="yes"
 766   if [ "$cpu" = "x86_64" ] ; then
 767     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 768     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 769   fi
 770   cocoa="enabled"
 771   audio_drv_list="coreaudio try-sdl"
 772   audio_possible_drivers="coreaudio sdl"
 773   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 774   # Disable attempts to use ObjectiveC features in os/object.h since they
 775   # won't work when we're compiling with gcc as a C compiler.
 776   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 777 ;;
 778 SunOS)
 779   solaris="yes"
 780   make="${MAKE-gmake}"
 781   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 782   if test -f /usr/include/sys/soundcard.h ; then
 783     audio_drv_list="oss try-sdl"
 784   fi
 785   audio_possible_drivers="oss sdl"
 786 # needed for CMSG_ macros in sys/socket.h
 787   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 788 # needed for TIOCWIN* defines in termios.h
 789   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 790 ;;
 791 Haiku)
 792   haiku="yes"
 793   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 794 ;;
 795 Linux)
 796   audio_drv_list="try-pa oss"
 797   audio_possible_drivers="oss alsa sdl pa"
 798   linux="yes"
 799   linux_user="yes"
 800   vhost_user="yes"
 801 ;;
 802 esac
 803
 804 if [ "$bsd" = "yes" ] ; then
 805   if [ "$darwin" != "yes" ] ; then
 806     bsd_user="yes"
 807   fi
 808 fi
 809
 810 : ${make=${MAKE-make}}
 811
 812 # We prefer python 3.x. A bare 'python' is traditionally
 813 # python 2.x, but some distros have it as python 3.x, so
 814 # we check that too
 815 python=
 816 explicit_python=no
 817 for binary in "${PYTHON-python3}" python
 818 do
 819     if has "$binary"
 820     then
 821         python=$(command -v "$binary")
 822         break
 823     fi
 824 done
 825
 826
 827 # Check for ancillary tools used in testing
 828 genisoimage=
 829 for binary in genisoimage mkisofs
 830 do
 831     if has $binary
 832     then
 833         genisoimage=$(command -v "$binary")
 834         break
 835     fi
 836 done
 837
 838 : ${smbd=${SMBD-/usr/sbin/smbd}}
 839
 840 # Default objcc to clang if available, otherwise use CC
 841 if has clang; then
 842   objcc=clang
 843 else
 844   objcc="$cc"
 845 fi
 846
 847 if test "$mingw32" = "yes" ; then
 848   EXESUF=".exe"
 849   HOST_DSOSUF=".dll"
 850   # MinGW needs -mthreads for TLS and macro _MT.
 851   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 852   write_c_skeleton;
 853   prefix="/qemu"
 854   qemu_suffix=""
 855   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 856 fi
 857
 858 werror=""
 859
 860 for opt do
 861   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 862   case "$opt" in
 863   --help|-h) show_help=yes
 864   ;;
 865   --version|-V) exec cat $source_path/VERSION
 866   ;;
 867   --prefix=*) prefix="$optarg"
 868   ;;
 869   --interp-prefix=*) interp_prefix="$optarg"
 870   ;;
 871   --cross-prefix=*)
 872   ;;
 873   --cc=*)
 874   ;;
 875   --host-cc=*) host_cc="$optarg"
 876   ;;
 877   --cxx=*)
 878   ;;
 879   --iasl=*) iasl="$optarg"
 880   ;;
 881   --objcc=*) objcc="$optarg"
 882   ;;
 883   --make=*) make="$optarg"
 884   ;;
 885   --install=*)
 886   ;;
 887   --python=*) python="$optarg" ; explicit_python=yes
 888   ;;
 889   --sphinx-build=*) sphinx_build="$optarg"
 890   ;;
 891   --skip-meson) skip_meson=yes
 892   ;;
 893   --meson=*) meson="$optarg"
 894   ;;
 895   --ninja=*) ninja="$optarg"
 896   ;;
 897   --smbd=*) smbd="$optarg"
 898   ;;
 899   --extra-cflags=*)
 900   ;;
 901   --extra-cxxflags=*)
 902   ;;
 903   --extra-ldflags=*)
 904   ;;
 905   --enable-debug-info)
 906   ;;
 907   --disable-debug-info)
 908   ;;
 909   --cross-cc-*)
 910   ;;
 911   --enable-modules)
 912       modules="yes"
 913   ;;
 914   --disable-modules)
 915       modules="no"
 916   ;;
 917   --disable-module-upgrades) module_upgrades="no"
 918   ;;
 919   --enable-module-upgrades) module_upgrades="yes"
 920   ;;
 921   --cpu=*)
 922   ;;
 923   --target-list=*) target_list="$optarg"
 924                    if test "$target_list_exclude"; then
 925                        error_exit "Can't mix --target-list with --target-list-exclude"
 926                    fi
 927   ;;
 928   --target-list-exclude=*) target_list_exclude="$optarg"
 929                    if test "$target_list"; then
 930                        error_exit "Can't mix --target-list-exclude with --target-list"
 931                    fi
 932   ;;
 933   --enable-trace-backends=*) trace_backends="$optarg"
 934   ;;
 935   # XXX: backwards compatibility
 936   --enable-trace-backend=*) trace_backends="$optarg"
 937   ;;
 938   --with-trace-file=*) trace_file="$optarg"
 939   ;;
 940   --with-default-devices) default_devices="yes"
 941   ;;
 942   --without-default-devices) default_devices="no"
 943   ;;
 944   --enable-gprof) gprof="yes"
 945   ;;
 946   --enable-gcov) gcov="yes"
 947   ;;
 948   --static)
 949     static="yes"
 950     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 951   ;;
 952   --mandir=*) mandir="$optarg"
 953   ;;
 954   --bindir=*) bindir="$optarg"
 955   ;;
 956   --libdir=*) libdir="$optarg"
 957   ;;
 958   --libexecdir=*) libexecdir="$optarg"
 959   ;;
 960   --includedir=*) includedir="$optarg"
 961   ;;
 962   --datadir=*) datadir="$optarg"
 963   ;;
 964   --with-suffix=*) qemu_suffix="$optarg"
 965   ;;
 966   --docdir=*) docdir="$optarg"
 967   ;;
 968   --localedir=*) localedir="$optarg"
 969   ;;
 970   --sysconfdir=*) sysconfdir="$optarg"
 971   ;;
 972   --localstatedir=*) local_statedir="$optarg"
 973   ;;
 974   --firmwarepath=*) firmwarepath="$optarg"
 975   ;;
 976   --host=*|--build=*|\
 977   --disable-dependency-tracking|\
 978   --sbindir=*|--sharedstatedir=*|\
 979   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 980   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 981     # These switches are silently ignored, for compatibility with
 982     # autoconf-generated configure scripts. This allows QEMU's
 983     # configure to be used by RPM and similar macros that set
 984     # lots of directory switches by default.
 985   ;;
 986   --disable-sdl) sdl="disabled"
 987   ;;
 988   --enable-sdl) sdl="enabled"
 989   ;;
 990   --disable-sdl-image) sdl_image="disabled"
 991   ;;
 992   --enable-sdl-image) sdl_image="enabled"
 993   ;;
 994   --disable-qom-cast-debug) qom_cast_debug="no"
 995   ;;
 996   --enable-qom-cast-debug) qom_cast_debug="yes"
 997   ;;
 998   --disable-virtfs) virtfs="no"
 999   ;;
1000   --enable-virtfs) virtfs="yes"
1001   ;;
1002   --disable-libudev) libudev="disabled"
1003   ;;
1004   --enable-libudev) libudev="enabled"
1005   ;;
1006   --disable-virtiofsd) virtiofsd="disabled"
1007   ;;
1008   --enable-virtiofsd) virtiofsd="enabled"
1009   ;;
1010   --disable-mpath) mpath="disabled"
1011   ;;
1012   --enable-mpath) mpath="enabled"
1013   ;;
1014   --disable-vnc) vnc="disabled"
1015   ;;
1016   --enable-vnc) vnc="enabled"
1017   ;;
1018   --disable-gettext) gettext="false"
1019   ;;
1020   --enable-gettext) gettext="true"
1021   ;;
1022   --oss-lib=*) oss_lib="$optarg"
1023   ;;
1024   --audio-drv-list=*) audio_drv_list="$optarg"
1025   ;;
1026   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1027   ;;
1028   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1029   ;;
1030   --enable-debug-tcg) debug_tcg="yes"
1031   ;;
1032   --disable-debug-tcg) debug_tcg="no"
1033   ;;
1034   --enable-debug)
1035       # Enable debugging options that aren't excessively noisy
1036       debug_tcg="yes"
1037       debug_mutex="yes"
1038       debug="yes"
1039       strip_opt="no"
1040       fortify_source="no"
1041   ;;
1042   --enable-sanitizers) sanitizers="yes"
1043   ;;
1044   --disable-sanitizers) sanitizers="no"
1045   ;;
1046   --enable-tsan) tsan="yes"
1047   ;;
1048   --disable-tsan) tsan="no"
1049   ;;
1050   --enable-sparse) sparse="enabled"
1051   ;;
1052   --disable-sparse) sparse="disabled"
1053   ;;
1054   --disable-strip) strip_opt="no"
1055   ;;
1056   --disable-vnc-sasl) vnc_sasl="disabled"
1057   ;;
1058   --enable-vnc-sasl) vnc_sasl="enabled"
1059   ;;
1060   --disable-vnc-jpeg) vnc_jpeg="disabled"
1061   ;;
1062   --enable-vnc-jpeg) vnc_jpeg="enabled"
1063   ;;
1064   --disable-vnc-png) vnc_png="disabled"
1065   ;;
1066   --enable-vnc-png) vnc_png="enabled"
1067   ;;
1068   --disable-slirp) slirp="disabled"
1069   ;;
1070   --enable-slirp=git) slirp="internal"
1071   ;;
1072   --enable-slirp=system) slirp="system"
1073   ;;
1074   --disable-vde) vde="no"
1075   ;;
1076   --enable-vde) vde="yes"
1077   ;;
1078   --disable-netmap) netmap="no"
1079   ;;
1080   --enable-netmap) netmap="yes"
1081   ;;
1082   --disable-xen) xen="disabled"
1083   ;;
1084   --enable-xen) xen="enabled"
1085   ;;
1086   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1087   ;;
1088   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1089   ;;
1090   --disable-brlapi) brlapi="no"
1091   ;;
1092   --enable-brlapi) brlapi="yes"
1093   ;;
1094   --disable-kvm) kvm="disabled"
1095   ;;
1096   --enable-kvm) kvm="enabled"
1097   ;;
1098   --disable-hax) hax="disabled"
1099   ;;
1100   --enable-hax) hax="enabled"
1101   ;;
1102   --disable-hvf) hvf="disabled"
1103   ;;
1104   --enable-hvf) hvf="enabled"
1105   ;;
1106   --disable-whpx) whpx="disabled"
1107   ;;
1108   --enable-whpx) whpx="enabled"
1109   ;;
1110   --disable-tcg-interpreter) tcg_interpreter="no"
1111   ;;
1112   --enable-tcg-interpreter) tcg_interpreter="yes"
1113   ;;
1114   --disable-cap-ng)  cap_ng="no"
1115   ;;
1116   --enable-cap-ng) cap_ng="yes"
1117   ;;
1118   --disable-tcg) tcg="disabled"
1119   ;;
1120   --enable-tcg) tcg="enabled"
1121   ;;
1122   --disable-malloc-trim) malloc_trim="disabled"
1123   ;;
1124   --enable-malloc-trim) malloc_trim="enabled"
1125   ;;
1126   --disable-spice) spice="no"
1127   ;;
1128   --enable-spice) spice="yes"
1129   ;;
1130   --disable-libiscsi) libiscsi="no"
1131   ;;
1132   --enable-libiscsi) libiscsi="yes"
1133   ;;
1134   --disable-libnfs) libnfs="no"
1135   ;;
1136   --enable-libnfs) libnfs="yes"
1137   ;;
1138   --enable-profiler) profiler="yes"
1139   ;;
1140   --disable-cocoa) cocoa="disabled"
1141   ;;
1142   --enable-cocoa)
1143       cocoa="enabled" ;
1144       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1145   ;;
1146   --disable-system) softmmu="no"
1147   ;;
1148   --enable-system) softmmu="yes"
1149   ;;
1150   --disable-user)
1151       linux_user="no" ;
1152       bsd_user="no" ;
1153   ;;
1154   --enable-user) ;;
1155   --disable-linux-user) linux_user="no"
1156   ;;
1157   --enable-linux-user) linux_user="yes"
1158   ;;
1159   --disable-bsd-user) bsd_user="no"
1160   ;;
1161   --enable-bsd-user) bsd_user="yes"
1162   ;;
1163   --enable-pie) pie="yes"
1164   ;;
1165   --disable-pie) pie="no"
1166   ;;
1167   --enable-werror) werror="yes"
1168   ;;
1169   --disable-werror) werror="no"
1170   ;;
1171   --enable-stack-protector) stack_protector="yes"
1172   ;;
1173   --disable-stack-protector) stack_protector="no"
1174   ;;
1175   --enable-safe-stack) safe_stack="yes"
1176   ;;
1177   --disable-safe-stack) safe_stack="no"
1178   ;;
1179   --disable-curses) curses="disabled"
1180   ;;
1181   --enable-curses) curses="enabled"
1182   ;;
1183   --disable-iconv) iconv="disabled"
1184   ;;
1185   --enable-iconv) iconv="enabled"
1186   ;;
1187   --disable-curl) curl="no"
1188   ;;
1189   --enable-curl) curl="yes"
1190   ;;
1191   --disable-fdt) fdt="disabled"
1192   ;;
1193   --enable-fdt) fdt="enabled"
1194   ;;
1195   --enable-fdt=git) fdt="internal"
1196   ;;
1197   --enable-fdt=system) fdt="system"
1198   ;;
1199   --disable-linux-aio) linux_aio="no"
1200   ;;
1201   --enable-linux-aio) linux_aio="yes"
1202   ;;
1203   --disable-linux-io-uring) linux_io_uring="no"
1204   ;;
1205   --enable-linux-io-uring) linux_io_uring="yes"
1206   ;;
1207   --disable-attr) attr="no"
1208   ;;
1209   --enable-attr) attr="yes"
1210   ;;
1211   --disable-membarrier) membarrier="no"
1212   ;;
1213   --enable-membarrier) membarrier="yes"
1214   ;;
1215   --disable-blobs) blobs="false"
1216   ;;
1217   --with-pkgversion=*) pkgversion="$optarg"
1218   ;;
1219   --with-coroutine=*) coroutine="$optarg"
1220   ;;
1221   --disable-coroutine-pool) coroutine_pool="no"
1222   ;;
1223   --enable-coroutine-pool) coroutine_pool="yes"
1224   ;;
1225   --enable-debug-stack-usage) debug_stack_usage="yes"
1226   ;;
1227   --enable-crypto-afalg) crypto_afalg="yes"
1228   ;;
1229   --disable-crypto-afalg) crypto_afalg="no"
1230   ;;
1231   --disable-docs) docs="disabled"
1232   ;;
1233   --enable-docs) docs="enabled"
1234   ;;
1235   --disable-vhost-net) vhost_net="no"
1236   ;;
1237   --enable-vhost-net) vhost_net="yes"
1238   ;;
1239   --disable-vhost-crypto) vhost_crypto="no"
1240   ;;
1241   --enable-vhost-crypto) vhost_crypto="yes"
1242   ;;
1243   --disable-vhost-scsi) vhost_scsi="no"
1244   ;;
1245   --enable-vhost-scsi) vhost_scsi="yes"
1246   ;;
1247   --disable-vhost-vsock) vhost_vsock="no"
1248   ;;
1249   --enable-vhost-vsock) vhost_vsock="yes"
1250   ;;
1251   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1252   ;;
1253   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1254   ;;
1255   --disable-vhost-user-fs) vhost_user_fs="no"
1256   ;;
1257   --enable-vhost-user-fs) vhost_user_fs="yes"
1258   ;;
1259   --disable-opengl) opengl="no"
1260   ;;
1261   --enable-opengl) opengl="yes"
1262   ;;
1263   --disable-rbd) rbd="no"
1264   ;;
1265   --enable-rbd) rbd="yes"
1266   ;;
1267   --disable-xfsctl) xfs="no"
1268   ;;
1269   --enable-xfsctl) xfs="yes"
1270   ;;
1271   --disable-smartcard) smartcard="no"
1272   ;;
1273   --enable-smartcard) smartcard="yes"
1274   ;;
1275   --disable-u2f) u2f="disabled"
1276   ;;
1277   --enable-u2f) u2f="enabled"
1278   ;;
1279   --disable-libusb) libusb="no"
1280   ;;
1281   --enable-libusb) libusb="yes"
1282   ;;
1283   --disable-usb-redir) usb_redir="no"
1284   ;;
1285   --enable-usb-redir) usb_redir="yes"
1286   ;;
1287   --disable-zlib-test)
1288   ;;
1289   --disable-lzo) lzo="no"
1290   ;;
1291   --enable-lzo) lzo="yes"
1292   ;;
1293   --disable-snappy) snappy="no"
1294   ;;
1295   --enable-snappy) snappy="yes"
1296   ;;
1297   --disable-bzip2) bzip2="no"
1298   ;;
1299   --enable-bzip2) bzip2="yes"
1300   ;;
1301   --enable-lzfse) lzfse="yes"
1302   ;;
1303   --disable-lzfse) lzfse="no"
1304   ;;
1305   --disable-zstd) zstd="no"
1306   ;;
1307   --enable-zstd) zstd="yes"
1308   ;;
1309   --enable-guest-agent) guest_agent="yes"
1310   ;;
1311   --disable-guest-agent) guest_agent="no"
1312   ;;
1313   --enable-guest-agent-msi) guest_agent_msi="yes"
1314   ;;
1315   --disable-guest-agent-msi) guest_agent_msi="no"
1316   ;;
1317   --with-vss-sdk) vss_win32_sdk=""
1318   ;;
1319   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1320   ;;
1321   --without-vss-sdk) vss_win32_sdk="no"
1322   ;;
1323   --with-win-sdk) win_sdk=""
1324   ;;
1325   --with-win-sdk=*) win_sdk="$optarg"
1326   ;;
1327   --without-win-sdk) win_sdk="no"
1328   ;;
1329   --enable-tools) want_tools="yes"
1330   ;;
1331   --disable-tools) want_tools="no"
1332   ;;
1333   --enable-seccomp) seccomp="yes"
1334   ;;
1335   --disable-seccomp) seccomp="no"
1336   ;;
1337   --disable-glusterfs) glusterfs="no"
1338   ;;
1339   --disable-avx2) avx2_opt="no"
1340   ;;
1341   --enable-avx2) avx2_opt="yes"
1342   ;;
1343   --disable-avx512f) avx512f_opt="no"
1344   ;;
1345   --enable-avx512f) avx512f_opt="yes"
1346   ;;
1347
1348   --enable-glusterfs) glusterfs="yes"
1349   ;;
1350   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1351       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1352   ;;
1353   --enable-vhdx|--disable-vhdx)
1354       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1355   ;;
1356   --enable-uuid|--disable-uuid)
1357       echo "$0: $opt is obsolete, UUID support is always built" >&2
1358   ;;
1359   --disable-gtk) gtk="no"
1360   ;;
1361   --enable-gtk) gtk="yes"
1362   ;;
1363   --tls-priority=*) tls_priority="$optarg"
1364   ;;
1365   --disable-gnutls) gnutls="no"
1366   ;;
1367   --enable-gnutls) gnutls="yes"
1368   ;;
1369   --disable-nettle) nettle="no"
1370   ;;
1371   --enable-nettle) nettle="yes"
1372   ;;
1373   --disable-gcrypt) gcrypt="no"
1374   ;;
1375   --enable-gcrypt) gcrypt="yes"
1376   ;;
1377   --disable-auth-pam) auth_pam="no"
1378   ;;
1379   --enable-auth-pam) auth_pam="yes"
1380   ;;
1381   --enable-rdma) rdma="yes"
1382   ;;
1383   --disable-rdma) rdma="no"
1384   ;;
1385   --enable-pvrdma) pvrdma="yes"
1386   ;;
1387   --disable-pvrdma) pvrdma="no"
1388   ;;
1389   --disable-vte) vte="no"
1390   ;;
1391   --enable-vte) vte="yes"
1392   ;;
1393   --disable-virglrenderer) virglrenderer="no"
1394   ;;
1395   --enable-virglrenderer) virglrenderer="yes"
1396   ;;
1397   --disable-tpm) tpm="no"
1398   ;;
1399   --enable-tpm) tpm="yes"
1400   ;;
1401   --disable-libssh) libssh="no"
1402   ;;
1403   --enable-libssh) libssh="yes"
1404   ;;
1405   --disable-live-block-migration) live_block_migration="no"
1406   ;;
1407   --enable-live-block-migration) live_block_migration="yes"
1408   ;;
1409   --disable-numa) numa="no"
1410   ;;
1411   --enable-numa) numa="yes"
1412   ;;
1413   --disable-libxml2) libxml2="no"
1414   ;;
1415   --enable-libxml2) libxml2="yes"
1416   ;;
1417   --disable-tcmalloc) tcmalloc="no"
1418   ;;
1419   --enable-tcmalloc) tcmalloc="yes"
1420   ;;
1421   --disable-jemalloc) jemalloc="no"
1422   ;;
1423   --enable-jemalloc) jemalloc="yes"
1424   ;;
1425   --disable-replication) replication="no"
1426   ;;
1427   --enable-replication) replication="yes"
1428   ;;
1429   --disable-bochs) bochs="no"
1430   ;;
1431   --enable-bochs) bochs="yes"
1432   ;;
1433   --disable-cloop) cloop="no"
1434   ;;
1435   --enable-cloop) cloop="yes"
1436   ;;
1437   --disable-dmg) dmg="no"
1438   ;;
1439   --enable-dmg) dmg="yes"
1440   ;;
1441   --disable-qcow1) qcow1="no"
1442   ;;
1443   --enable-qcow1) qcow1="yes"
1444   ;;
1445   --disable-vdi) vdi="no"
1446   ;;
1447   --enable-vdi) vdi="yes"
1448   ;;
1449   --disable-vvfat) vvfat="no"
1450   ;;
1451   --enable-vvfat) vvfat="yes"
1452   ;;
1453   --disable-qed) qed="no"
1454   ;;
1455   --enable-qed) qed="yes"
1456   ;;
1457   --disable-parallels) parallels="no"
1458   ;;
1459   --enable-parallels) parallels="yes"
1460   ;;
1461   --disable-sheepdog) sheepdog="no"
1462   ;;
1463   --enable-sheepdog) sheepdog="yes"
1464   ;;
1465   --disable-vhost-user) vhost_user="no"
1466   ;;
1467   --enable-vhost-user) vhost_user="yes"
1468   ;;
1469   --disable-vhost-vdpa) vhost_vdpa="no"
1470   ;;
1471   --enable-vhost-vdpa) vhost_vdpa="yes"
1472   ;;
1473   --disable-vhost-kernel) vhost_kernel="no"
1474   ;;
1475   --enable-vhost-kernel) vhost_kernel="yes"
1476   ;;
1477   --disable-capstone) capstone="disabled"
1478   ;;
1479   --enable-capstone) capstone="enabled"
1480   ;;
1481   --enable-capstone=git) capstone="internal"
1482   ;;
1483   --enable-capstone=system) capstone="system"
1484   ;;
1485   --with-git=*) git="$optarg"
1486   ;;
1487   --enable-git-update) git_update=yes
1488   ;;
1489   --disable-git-update) git_update=no
1490   ;;
1491   --enable-debug-mutex) debug_mutex=yes
1492   ;;
1493   --disable-debug-mutex) debug_mutex=no
1494   ;;
1495   --enable-libpmem) libpmem=yes
1496   ;;
1497   --disable-libpmem) libpmem=no
1498   ;;
1499   --enable-xkbcommon) xkbcommon="enabled"
1500   ;;
1501   --disable-xkbcommon) xkbcommon="disabled"
1502   ;;
1503   --enable-plugins) plugins="yes"
1504   ;;
1505   --disable-plugins) plugins="no"
1506   ;;
1507   --enable-containers) use_containers="yes"
1508   ;;
1509   --disable-containers) use_containers="no"
1510   ;;
1511   --enable-fuzzing) fuzzing=yes
1512   ;;
1513   --disable-fuzzing) fuzzing=no
1514   ;;
1515   --gdb=*) gdb_bin="$optarg"
1516   ;;
1517   --enable-rng-none) rng_none=yes
1518   ;;
1519   --disable-rng-none) rng_none=no
1520   ;;
1521   --enable-keyring) secret_keyring="yes"
1522   ;;
1523   --disable-keyring) secret_keyring="no"
1524   ;;
1525   --enable-libdaxctl) libdaxctl=yes
1526   ;;
1527   --disable-libdaxctl) libdaxctl=no
1528   ;;
1529   --enable-fuse) fuse="enabled"
1530   ;;
1531   --disable-fuse) fuse="disabled"
1532   ;;
1533   *)
1534       echo "ERROR: unknown option $opt"
1535       echo "Try '$0 --help' for more information"
1536       exit 1
1537   ;;
1538   esac
1539 done
1540
1541 libdir="${libdir:-$prefix/lib}"
1542 libexecdir="${libexecdir:-$prefix/libexec}"
1543 includedir="${includedir:-$prefix/include}"
1544
1545 if test "$mingw32" = "yes" ; then
1546     mandir="$prefix"
1547     datadir="$prefix"
1548     docdir="$prefix"
1549     bindir="$prefix"
1550     sysconfdir="$prefix"
1551     local_statedir="$prefix"
1552 else
1553     mandir="${mandir:-$prefix/share/man}"
1554     datadir="${datadir:-$prefix/share}"
1555     docdir="${docdir:-$prefix/share/doc}"
1556     bindir="${bindir:-$prefix/bin}"
1557     sysconfdir="${sysconfdir:-$prefix/etc}"
1558     local_statedir="${local_statedir:-$prefix/var}"
1559 fi
1560 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1561 localedir="${localedir:-$datadir/locale}"
1562
1563 case "$cpu" in
1564     ppc)
1565            CPU_CFLAGS="-m32"
1566            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1567            ;;
1568     ppc64)
1569            CPU_CFLAGS="-m64"
1570            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1571            ;;
1572     sparc)
1573            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1574            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1575            ;;
1576     sparc64)
1577            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1578            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1579            ;;
1580     s390)
1581            CPU_CFLAGS="-m31"
1582            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1583            ;;
1584     s390x)
1585            CPU_CFLAGS="-m64"
1586            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1587            ;;
1588     i386)
1589            CPU_CFLAGS="-m32"
1590            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1591            ;;
1592     x86_64)
1593            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1594            # If we truly care, we should simply detect this case at
1595            # runtime and generate the fallback to serial emulation.
1596            CPU_CFLAGS="-m64 -mcx16"
1597            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1598            ;;
1599     x32)
1600            CPU_CFLAGS="-mx32"
1601            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1602            ;;
1603     # No special flags required for other host CPUs
1604 esac
1605
1606 eval "cross_cc_${cpu}=\$host_cc"
1607 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1608 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1609
1610 # For user-mode emulation the host arch has to be one we explicitly
1611 # support, even if we're using TCI.
1612 if [ "$ARCH" = "unknown" ]; then
1613   bsd_user="no"
1614   linux_user="no"
1615 fi
1616
1617 default_target_list=""
1618 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
1619 deprecated_features=""
1620 mak_wilds=""
1621
1622 if [ "$softmmu" = "yes" ]; then
1623     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1624 fi
1625 if [ "$linux_user" = "yes" ]; then
1626     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1627 fi
1628 if [ "$bsd_user" = "yes" ]; then
1629     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1630 fi
1631
1632 # If the user doesn't explicitly specify a deprecated target we will
1633 # skip it.
1634 if test -z "$target_list"; then
1635     if test -z "$target_list_exclude"; then
1636         target_list_exclude="$deprecated_targets_list"
1637     else
1638         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1639     fi
1640 fi
1641
1642 for config in $mak_wilds; do
1643     target="$(basename "$config" .mak)"
1644     if echo "$target_list_exclude" | grep -vq "$target"; then
1645         default_target_list="${default_target_list} $target"
1646     fi
1647 done
1648
1649 # Enumerate public trace backends for --help output
1650 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1651
1652 if test x"$show_help" = x"yes" ; then
1653 cat << EOF
1654
1655 Usage: configure [options]
1656 Options: [defaults in brackets after descriptions]
1657
1658 Standard options:
1659   --help                   print this message
1660   --prefix=PREFIX          install in PREFIX [$prefix]
1661   --interp-prefix=PREFIX   where to find shared libraries, etc.
1662                            use %M for cpu name [$interp_prefix]
1663   --target-list=LIST       set target list (default: build all non-deprecated)
1664 $(echo Available targets: $default_target_list | \
1665   fold -s -w 53 | sed -e 's/^/                           /')
1666 $(echo Deprecated targets: $deprecated_targets_list | \
1667   fold -s -w 53 | sed -e 's/^/                           /')
1668   --target-list-exclude=LIST exclude a set of targets from the default target-list
1669
1670 Advanced options (experts only):
1671   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1672   --cc=CC                  use C compiler CC [$cc]
1673   --iasl=IASL              use ACPI compiler IASL [$iasl]
1674   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1675                            build time
1676   --cxx=CXX                use C++ compiler CXX [$cxx]
1677   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1678   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1679   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1680   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1681   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1682   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1683   --make=MAKE              use specified make [$make]
1684   --python=PYTHON          use specified python [$python]
1685   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1686   --meson=MESON            use specified meson [$meson]
1687   --ninja=NINJA            use specified ninja [$ninja]
1688   --smbd=SMBD              use specified smbd [$smbd]
1689   --with-git=GIT           use specified git [$git]
1690   --static                 enable static build [$static]
1691   --mandir=PATH            install man pages in PATH
1692   --datadir=PATH           install firmware in PATH/$qemu_suffix
1693   --localedir=PATH         install translation in PATH/$qemu_suffix
1694   --docdir=PATH            install documentation in PATH/$qemu_suffix
1695   --bindir=PATH            install binaries in PATH
1696   --libdir=PATH            install libraries in PATH
1697   --libexecdir=PATH        install helper binaries in PATH
1698   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1699   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1700   --firmwarepath=PATH      search PATH for firmware files
1701   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1702   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1703   --with-pkgversion=VERS   use specified string as sub-version of the package
1704   --enable-debug           enable common debug build options
1705   --enable-sanitizers      enable default sanitizers
1706   --enable-tsan            enable thread sanitizer
1707   --disable-strip          disable stripping binaries
1708   --disable-werror         disable compilation abort on warning
1709   --disable-stack-protector disable compiler-provided stack protection
1710   --audio-drv-list=LIST    set audio drivers list:
1711                            Available drivers: $audio_possible_drivers
1712   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1713   --block-drv-rw-whitelist=L
1714                            set block driver read-write whitelist
1715                            (affects only QEMU, not qemu-img)
1716   --block-drv-ro-whitelist=L
1717                            set block driver read-only whitelist
1718                            (affects only QEMU, not qemu-img)
1719   --enable-trace-backends=B Set trace backend
1720                            Available backends: $trace_backend_list
1721   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1722                            Default:trace-<pid>
1723   --disable-slirp          disable SLIRP userspace network connectivity
1724   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1725   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1726   --oss-lib                path to OSS library
1727   --cpu=CPU                Build for host CPU [$cpu]
1728   --with-coroutine=BACKEND coroutine backend. Supported options:
1729                            ucontext, sigaltstack, windows
1730   --enable-gcov            enable test coverage analysis with gcov
1731   --disable-blobs          disable installing provided firmware blobs
1732   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1733   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1734   --tls-priority           default TLS protocol/cipher priority string
1735   --enable-gprof           QEMU profiling with gprof
1736   --enable-profiler        profiler support
1737   --enable-debug-stack-usage
1738                            track the maximum stack usage of stacks created by qemu_alloc_stack
1739   --enable-plugins
1740                            enable plugins via shared library loading
1741   --disable-containers     don't use containers for cross-building
1742   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1743
1744 Optional features, enabled with --enable-FEATURE and
1745 disabled with --disable-FEATURE, default is enabled if available:
1746
1747   system          all system emulation targets
1748   user            supported user emulation targets
1749   linux-user      all linux usermode emulation targets
1750   bsd-user        all BSD usermode emulation targets
1751   docs            build documentation
1752   guest-agent     build the QEMU Guest Agent
1753   guest-agent-msi build guest agent Windows MSI installation package
1754   pie             Position Independent Executables
1755   modules         modules support (non-Windows)
1756   module-upgrades try to load modules from alternate paths for upgrades
1757   debug-tcg       TCG debugging (default is disabled)
1758   debug-info      debugging information
1759   sparse          sparse checker
1760   safe-stack      SafeStack Stack Smash Protection. Depends on
1761                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1762
1763   gnutls          GNUTLS cryptography support
1764   nettle          nettle cryptography support
1765   gcrypt          libgcrypt cryptography support
1766   auth-pam        PAM access control
1767   sdl             SDL UI
1768   sdl-image       SDL Image support for icons
1769   gtk             gtk UI
1770   vte             vte support for the gtk UI
1771   curses          curses UI
1772   iconv           font glyph conversion support
1773   vnc             VNC UI support
1774   vnc-sasl        SASL encryption for VNC server
1775   vnc-jpeg        JPEG lossy compression for VNC server
1776   vnc-png         PNG compression for VNC server
1777   cocoa           Cocoa UI (Mac OS X only)
1778   virtfs          VirtFS
1779   virtiofsd       build virtiofs daemon (virtiofsd)
1780   libudev         Use libudev to enumerate host devices
1781   mpath           Multipath persistent reservation passthrough
1782   xen             xen backend driver support
1783   xen-pci-passthrough    PCI passthrough support for Xen
1784   brlapi          BrlAPI (Braile)
1785   curl            curl connectivity
1786   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1787   fdt             fdt device tree
1788   kvm             KVM acceleration support
1789   hax             HAX acceleration support
1790   hvf             Hypervisor.framework acceleration support
1791   whpx            Windows Hypervisor Platform acceleration support
1792   rdma            Enable RDMA-based migration
1793   pvrdma          Enable PVRDMA support
1794   vde             support for vde network
1795   netmap          support for netmap network
1796   linux-aio       Linux AIO support
1797   linux-io-uring  Linux io_uring support
1798   cap-ng          libcap-ng support
1799   attr            attr and xattr support
1800   vhost-net       vhost-net kernel acceleration support
1801   vhost-vsock     virtio sockets device support
1802   vhost-scsi      vhost-scsi kernel target support
1803   vhost-crypto    vhost-user-crypto backend support
1804   vhost-kernel    vhost kernel backend support
1805   vhost-user      vhost-user backend support
1806   vhost-user-blk-server    vhost-user-blk server support
1807   vhost-vdpa      vhost-vdpa kernel backend support
1808   spice           spice
1809   rbd             rados block device (rbd)
1810   libiscsi        iscsi support
1811   libnfs          nfs support
1812   smartcard       smartcard support (libcacard)
1813   u2f             U2F support (u2f-emu)
1814   libusb          libusb (for usb passthrough)
1815   live-block-migration   Block migration in the main migration stream
1816   usb-redir       usb network redirection support
1817   lzo             support of lzo compression library
1818   snappy          support of snappy compression library
1819   bzip2           support of bzip2 compression library
1820                   (for reading bzip2-compressed dmg images)
1821   lzfse           support of lzfse compression library
1822                   (for reading lzfse-compressed dmg images)
1823   zstd            support for zstd compression library
1824                   (for migration compression and qcow2 cluster compression)
1825   seccomp         seccomp support
1826   coroutine-pool  coroutine freelist (better performance)
1827   glusterfs       GlusterFS backend
1828   tpm             TPM support
1829   libssh          ssh block device support
1830   numa            libnuma support
1831   libxml2         for Parallels image format
1832   tcmalloc        tcmalloc support
1833   jemalloc        jemalloc support
1834   avx2            AVX2 optimization support
1835   avx512f         AVX512F optimization support
1836   replication     replication support
1837   opengl          opengl support
1838   virglrenderer   virgl rendering support
1839   xfsctl          xfsctl support
1840   qom-cast-debug  cast debugging support
1841   tools           build qemu-io, qemu-nbd and qemu-img tools
1842   bochs           bochs image format support
1843   cloop           cloop image format support
1844   dmg             dmg image format support
1845   qcow1           qcow v1 image format support
1846   vdi             vdi image format support
1847   vvfat           vvfat image format support
1848   qed             qed image format support
1849   parallels       parallels image format support
1850   sheepdog        sheepdog block driver support (deprecated)
1851   crypto-afalg    Linux AF_ALG crypto backend driver
1852   capstone        capstone disassembler support
1853   debug-mutex     mutex debugging support
1854   libpmem         libpmem support
1855   xkbcommon       xkbcommon support
1856   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1857   libdaxctl       libdaxctl support
1858   fuse            FUSE block device export
1859
1860 NOTE: The object files are built at the place where configure is launched
1861 EOF
1862 exit 0
1863 fi
1864
1865 # Remove old dependency files to make sure that they get properly regenerated
1866 rm -f */config-devices.mak.d
1867
1868 if test -z "$python"
1869 then
1870     error_exit "Python not found. Use --python=/path/to/python"
1871 fi
1872
1873 # Note that if the Python conditional here evaluates True we will exit
1874 # with status 1 which is a shell 'false' value.
1875 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1876   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1877       "Use --python=/path/to/python to specify a supported Python."
1878 fi
1879
1880 # Preserve python version since some functionality is dependent on it
1881 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)
1882
1883 # Suppress writing compiled files
1884 python="$python -B"
1885
1886 if test -z "$meson"; then
1887     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1888         meson=meson
1889     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1890         meson=git
1891     elif test -e "${source_path}/meson/meson.py" ; then
1892         meson=internal
1893     else
1894         if test "$explicit_python" = yes; then
1895             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1896         else
1897             error_exit "Meson not found.  Use --meson=/path/to/meson"
1898         fi
1899     fi
1900 else
1901     # Meson uses its own Python interpreter to invoke other Python scripts,
1902     # but the user wants to use the one they specified with --python.
1903     #
1904     # We do not want to override the distro Python interpreter (and sometimes
1905     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1906     # just require --meson=git|internal together with --python.
1907     if test "$explicit_python" = yes; then
1908         case "$meson" in
1909             git | internal) ;;
1910             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1911         esac
1912     fi
1913 fi
1914
1915 if test "$meson" = git; then
1916     git_submodules="${git_submodules} meson"
1917 fi
1918
1919 case "$meson" in
1920     git | internal)
1921         meson="$python ${source_path}/meson/meson.py"
1922         ;;
1923     *) meson=$(command -v "$meson") ;;
1924 esac
1925
1926 # Probe for ninja
1927
1928 if test -z "$ninja"; then
1929     for c in ninja ninja-build samu; do
1930         if has $c; then
1931             ninja=$(command -v "$c")
1932             break
1933         fi
1934     done
1935     if test -z "$ninja"; then
1936       error_exit "Cannot find Ninja"
1937     fi
1938 fi
1939
1940 # Check that the C compiler works. Doing this here before testing
1941 # the host CPU ensures that we had a valid CC to autodetect the
1942 # $cpu var (and we should bail right here if that's not the case).
1943 # It also allows the help message to be printed without a CC.
1944 write_c_skeleton;
1945 if compile_object ; then
1946   : C compiler works ok
1947 else
1948     error_exit "\"$cc\" either does not exist or does not work"
1949 fi
1950 if ! compile_prog ; then
1951     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1952 fi
1953
1954 # Consult white-list to determine whether to enable werror
1955 # by default.  Only enable by default for git builds
1956 if test -z "$werror" ; then
1957     if test -e "$source_path/.git" && \
1958         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1959         werror="yes"
1960     else
1961         werror="no"
1962     fi
1963 fi
1964
1965 if test "$bogus_os" = "yes"; then
1966     # Now that we know that we're not printing the help and that
1967     # the compiler works (so the results of the check_defines we used
1968     # to identify the OS are reliable), if we didn't recognize the
1969     # host OS we should stop now.
1970     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1971 fi
1972
1973 # Check whether the compiler matches our minimum requirements:
1974 cat > $TMPC << EOF
1975 #if defined(__clang_major__) && defined(__clang_minor__)
1976 # ifdef __apple_build_version__
1977 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
1978 #   error You need at least XCode Clang v5.1 to compile QEMU
1979 #  endif
1980 # else
1981 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
1982 #   error You need at least Clang v3.4 to compile QEMU
1983 #  endif
1984 # endif
1985 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1986 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
1987 #  error You need at least GCC v4.8 to compile QEMU
1988 # endif
1989 #else
1990 # error You either need GCC or Clang to compiler QEMU
1991 #endif
1992 int main (void) { return 0; }
1993 EOF
1994 if ! compile_prog "" "" ; then
1995     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
1996 fi
1997
1998 # Accumulate -Wfoo and -Wno-bar separately.
1999 # We will list all of the enable flags first, and the disable flags second.
2000 # Note that we do not add -Werror, because that would enable it for all
2001 # configure tests. If a configure test failed due to -Werror this would
2002 # just silently disable some features, so it's too error prone.
2003
2004 warn_flags=
2005 add_to warn_flags -Wold-style-declaration
2006 add_to warn_flags -Wold-style-definition
2007 add_to warn_flags -Wtype-limits
2008 add_to warn_flags -Wformat-security
2009 add_to warn_flags -Wformat-y2k
2010 add_to warn_flags -Winit-self
2011 add_to warn_flags -Wignored-qualifiers
2012 add_to warn_flags -Wempty-body
2013 add_to warn_flags -Wnested-externs
2014 add_to warn_flags -Wendif-labels
2015 add_to warn_flags -Wexpansion-to-defined
2016
2017 nowarn_flags=
2018 add_to nowarn_flags -Wno-initializer-overrides
2019 add_to nowarn_flags -Wno-missing-include-dirs
2020 add_to nowarn_flags -Wno-shift-negative-value
2021 add_to nowarn_flags -Wno-string-plus-int
2022 add_to nowarn_flags -Wno-typedef-redefinition
2023 add_to nowarn_flags -Wno-tautological-type-limit-compare
2024 add_to nowarn_flags -Wno-psabi
2025
2026 gcc_flags="$warn_flags $nowarn_flags"
2027
2028 cc_has_warning_flag() {
2029     write_c_skeleton;
2030
2031     # Use the positive sense of the flag when testing for -Wno-wombat
2032     # support (gcc will happily accept the -Wno- form of unknown
2033     # warning options).
2034     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2035     compile_prog "-Werror $optflag" ""
2036 }
2037
2038 for flag in $gcc_flags; do
2039     if cc_has_warning_flag $flag ; then
2040         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2041     fi
2042 done
2043
2044 if test "$stack_protector" != "no"; then
2045   cat > $TMPC << EOF
2046 int main(int argc, char *argv[])
2047 {
2048     char arr[64], *p = arr, *c = argv[0];
2049     while (*c) {
2050         *p++ = *c++;
2051     }
2052     return 0;
2053 }
2054 EOF
2055   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2056   sp_on=0
2057   for flag in $gcc_flags; do
2058     # We need to check both a compile and a link, since some compiler
2059     # setups fail only on a .c->.o compile and some only at link time
2060     if compile_object "-Werror $flag" &&
2061        compile_prog "-Werror $flag" ""; then
2062       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2063       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2064       sp_on=1
2065       break
2066     fi
2067   done
2068   if test "$stack_protector" = yes; then
2069     if test $sp_on = 0; then
2070       error_exit "Stack protector not supported"
2071     fi
2072   fi
2073 fi
2074
2075 # Disable -Wmissing-braces on older compilers that warn even for
2076 # the "universal" C zero initializer {0}.
2077 cat > $TMPC << EOF
2078 struct {
2079   int a[2];
2080 } x = {0};
2081 EOF
2082 if compile_object "-Werror" "" ; then
2083   :
2084 else
2085   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2086 fi
2087
2088 # Our module code doesn't support Windows
2089 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2090   error_exit "Modules are not available for Windows"
2091 fi
2092
2093 # module_upgrades is only reasonable if modules are enabled
2094 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2095   error_exit "Can't enable module-upgrades as Modules are not enabled"
2096 fi
2097
2098 # Static linking is not possible with modules or PIE
2099 if test "$static" = "yes" ; then
2100   if test "$modules" = "yes" ; then
2101     error_exit "static and modules are mutually incompatible"
2102   fi
2103 fi
2104
2105 # Unconditional check for compiler __thread support
2106   cat > $TMPC << EOF
2107 static __thread int tls_var;
2108 int main(void) { return tls_var; }
2109 EOF
2110
2111 if ! compile_prog "-Werror" "" ; then
2112     error_exit "Your compiler does not support the __thread specifier for " \
2113         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2114 fi
2115
2116 cat > $TMPC << EOF
2117
2118 #ifdef __linux__
2119 #  define THREAD __thread
2120 #else
2121 #  define THREAD
2122 #endif
2123 static THREAD int tls_var;
2124 int main(void) { return tls_var; }
2125 EOF
2126
2127 # Check we support --no-pie first; we will need this for building ROMs.
2128 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2129   CFLAGS_NOPIE="-fno-pie"
2130   LDFLAGS_NOPIE="-no-pie"
2131 fi
2132
2133 if test "$static" = "yes"; then
2134   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2135     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2136     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2137     pie="yes"
2138   elif test "$pie" = "yes"; then
2139     error_exit "-static-pie not available due to missing toolchain support"
2140   else
2141     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2142     pie="no"
2143   fi
2144 elif test "$pie" = "no"; then
2145   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2146   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
2147 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2148   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2149   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2150   pie="yes"
2151 elif test "$pie" = "yes"; then
2152   error_exit "PIE not available due to missing toolchain support"
2153 else
2154   echo "Disabling PIE due to missing toolchain support"
2155   pie="no"
2156 fi
2157
2158 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2159 # The combination is known as "full relro", because .got.plt is read-only too.
2160 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2161   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2162 fi
2163
2164 ##########################################
2165 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2166 # use i686 as default anyway, but for those that don't, an explicit
2167 # specification is necessary
2168
2169 if test "$cpu" = "i386"; then
2170   cat > $TMPC << EOF
2171 static int sfaa(int *ptr)
2172 {
2173   return __sync_fetch_and_and(ptr, 0);
2174 }
2175
2176 int main(void)
2177 {
2178   int val = 42;
2179   val = __sync_val_compare_and_swap(&val, 0, 1);
2180   sfaa(&val);
2181   return val;
2182 }
2183 EOF
2184   if ! compile_prog "" "" ; then
2185     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2186   fi
2187 fi
2188
2189 #########################################
2190 # Solaris specific configure tool chain decisions
2191
2192 if test "$solaris" = "yes" ; then
2193   if has ar; then
2194     :
2195   else
2196     if test -f /usr/ccs/bin/ar ; then
2197       error_exit "No path includes ar" \
2198           "Add /usr/ccs/bin to your path and rerun configure"
2199     fi
2200     error_exit "No path includes ar"
2201   fi
2202 fi
2203
2204 if test -z "${target_list+xxx}" ; then
2205     default_targets=yes
2206     for target in $default_target_list; do
2207         target_list="$target_list $target"
2208     done
2209     target_list="${target_list# }"
2210 else
2211     default_targets=no
2212     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2213     for target in $target_list; do
2214         # Check that we recognised the target name; this allows a more
2215         # friendly error message than if we let it fall through.
2216         case " $default_target_list " in
2217             *" $target "*)
2218                 ;;
2219             *)
2220                 error_exit "Unknown target name '$target'"
2221                 ;;
2222         esac
2223     done
2224 fi
2225
2226 for target in $target_list; do
2227     # if a deprecated target is enabled we note it here
2228     if echo "$deprecated_targets_list" | grep -q "$target"; then
2229         add_to deprecated_features $target
2230     fi
2231 done
2232
2233 # see if system emulation was really requested
2234 case " $target_list " in
2235   *"-softmmu "*) softmmu=yes
2236   ;;
2237   *) softmmu=no
2238   ;;
2239 esac
2240
2241 feature_not_found() {
2242   feature=$1
2243   remedy=$2
2244
2245   error_exit "User requested feature $feature" \
2246       "configure was not able to find it." \
2247       "$remedy"
2248 }
2249
2250 # ---
2251 # big/little endian test
2252 cat > $TMPC << EOF
2253 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2254 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2255 extern int foo(short *, short *);
2256 int main(int argc, char *argv[]) {
2257     return foo(big_endian, little_endian);
2258 }
2259 EOF
2260
2261 if compile_object ; then
2262     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2263         bigendian="yes"
2264     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2265         bigendian="no"
2266     else
2267         echo big/little test failed
2268     fi
2269 else
2270     echo big/little test failed
2271 fi
2272
2273 ##########################################
2274 # system tools
2275 if test -z "$want_tools"; then
2276     if test "$softmmu" = "no"; then
2277         want_tools=no
2278     else
2279         want_tools=yes
2280     fi
2281 fi
2282
2283 ##########################################
2284 # cocoa implies not SDL or GTK
2285 # (the cocoa UI code currently assumes it is always the active UI
2286 # and doesn't interact well with other UI frontend code)
2287 if test "$cocoa" = "enabled"; then
2288     if test "$sdl" = "enabled"; then
2289         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2290     fi
2291     if test "$gtk" = "yes"; then
2292         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2293     fi
2294     gtk=no
2295     sdl=disabled
2296 fi
2297
2298 # Some versions of Mac OS X incorrectly define SIZE_MAX
2299 cat > $TMPC << EOF
2300 #include <stdint.h>
2301 #include <stdio.h>
2302 int main(int argc, char *argv[]) {
2303     return printf("%zu", SIZE_MAX);
2304 }
2305 EOF
2306 have_broken_size_max=no
2307 if ! compile_object -Werror ; then
2308     have_broken_size_max=yes
2309 fi
2310
2311 ##########################################
2312 # L2TPV3 probe
2313
2314 cat > $TMPC <<EOF
2315 #include <sys/socket.h>
2316 #include <linux/ip.h>
2317 int main(void) { return sizeof(struct mmsghdr); }
2318 EOF
2319 if compile_prog "" "" ; then
2320   l2tpv3=yes
2321 else
2322   l2tpv3=no
2323 fi
2324
2325 if check_include "pty.h" ; then
2326   pty_h=yes
2327 else
2328   pty_h=no
2329 fi
2330
2331 cat > $TMPC <<EOF
2332 #include <sys/mman.h>
2333 int main(int argc, char *argv[]) {
2334     return mlockall(MCL_FUTURE);
2335 }
2336 EOF
2337 if compile_prog "" "" ; then
2338   have_mlockall=yes
2339 else
2340   have_mlockall=no
2341 fi
2342
2343 #########################################
2344 # vhost interdependencies and host support
2345
2346 # vhost backends
2347 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2348   error_exit "vhost-user is only available on Linux"
2349 fi
2350 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2351 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2352   error_exit "vhost-vdpa is only available on Linux"
2353 fi
2354 test "$vhost_kernel" = "" && vhost_kernel=$linux
2355 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2356   error_exit "vhost-kernel is only available on Linux"
2357 fi
2358
2359 # vhost-kernel devices
2360 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2361 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2362   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2363 fi
2364 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2365 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2366   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2367 fi
2368
2369 # vhost-user backends
2370 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2371 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2372   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2373 fi
2374 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2375 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2376   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2377 fi
2378 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2379 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2380   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2381 fi
2382 #vhost-vdpa backends
2383 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2384 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2385   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2386 fi
2387
2388 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2389 if test "$vhost_net" = ""; then
2390   test "$vhost_net_user" = "yes" && vhost_net=yes
2391   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2392   test "$vhost_kernel" = "yes" && vhost_net=yes
2393 fi
2394
2395 ##########################################
2396 # pkg-config probe
2397
2398 if ! has "$pkg_config_exe"; then
2399   error_exit "pkg-config binary '$pkg_config_exe' not found"
2400 fi
2401
2402 ##########################################
2403 # NPTL probe
2404
2405 if test "$linux_user" = "yes"; then
2406   cat > $TMPC <<EOF
2407 #include <sched.h>
2408 #include <linux/futex.h>
2409 int main(void) {
2410 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2411 #error bork
2412 #endif
2413   return 0;
2414 }
2415 EOF
2416   if ! compile_object ; then
2417     feature_not_found "nptl" "Install glibc and linux kernel headers."
2418   fi
2419 fi
2420
2421 ##########################################
2422 # lzo check
2423
2424 if test "$lzo" != "no" ; then
2425     cat > $TMPC << EOF
2426 #include <lzo/lzo1x.h>
2427 int main(void) { lzo_version(); return 0; }
2428 EOF
2429     if compile_prog "" "-llzo2" ; then
2430         lzo_libs="-llzo2"
2431         lzo="yes"
2432     else
2433         if test "$lzo" = "yes"; then
2434             feature_not_found "liblzo2" "Install liblzo2 devel"
2435         fi
2436         lzo="no"
2437     fi
2438 fi
2439
2440 ##########################################
2441 # snappy check
2442
2443 if test "$snappy" != "no" ; then
2444     cat > $TMPC << EOF
2445 #include <snappy-c.h>
2446 int main(void) { snappy_max_compressed_length(4096); return 0; }
2447 EOF
2448     if compile_prog "" "-lsnappy" ; then
2449         snappy_libs='-lsnappy'
2450         snappy="yes"
2451     else
2452         if test "$snappy" = "yes"; then
2453             feature_not_found "libsnappy" "Install libsnappy devel"
2454         fi
2455         snappy="no"
2456     fi
2457 fi
2458
2459 ##########################################
2460 # bzip2 check
2461
2462 if test "$bzip2" != "no" ; then
2463     cat > $TMPC << EOF
2464 #include <bzlib.h>
2465 int main(void) { BZ2_bzlibVersion(); return 0; }
2466 EOF
2467     if compile_prog "" "-lbz2" ; then
2468         bzip2="yes"
2469     else
2470         if test "$bzip2" = "yes"; then
2471             feature_not_found "libbzip2" "Install libbzip2 devel"
2472         fi
2473         bzip2="no"
2474     fi
2475 fi
2476
2477 ##########################################
2478 # lzfse check
2479
2480 if test "$lzfse" != "no" ; then
2481     cat > $TMPC << EOF
2482 #include <lzfse.h>
2483 int main(void) { lzfse_decode_scratch_size(); return 0; }
2484 EOF
2485     if compile_prog "" "-llzfse" ; then
2486         lzfse="yes"
2487     else
2488         if test "$lzfse" = "yes"; then
2489             feature_not_found "lzfse" "Install lzfse devel"
2490         fi
2491         lzfse="no"
2492     fi
2493 fi
2494
2495 ##########################################
2496 # zstd check
2497
2498 if test "$zstd" != "no" ; then
2499     libzstd_minver="1.4.0"
2500     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2501         zstd_cflags="$($pkg_config --cflags libzstd)"
2502         zstd_libs="$($pkg_config --libs libzstd)"
2503         zstd="yes"
2504     else
2505         if test "$zstd" = "yes" ; then
2506             feature_not_found "libzstd" "Install libzstd devel"
2507         fi
2508         zstd="no"
2509     fi
2510 fi
2511
2512 ##########################################
2513 # libseccomp check
2514
2515 if test "$seccomp" != "no" ; then
2516     libseccomp_minver="2.3.0"
2517     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2518         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2519         seccomp_libs="$($pkg_config --libs libseccomp)"
2520         seccomp="yes"
2521     else
2522         if test "$seccomp" = "yes" ; then
2523             feature_not_found "libseccomp" \
2524                  "Install libseccomp devel >= $libseccomp_minver"
2525         fi
2526         seccomp="no"
2527     fi
2528 fi
2529
2530 ##########################################
2531 # xen probe
2532
2533 if test "$xen" != "disabled" ; then
2534   # Check whether Xen library path is specified via --extra-ldflags to avoid
2535   # overriding this setting with pkg-config output. If not, try pkg-config
2536   # to obtain all needed flags.
2537
2538   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2539      $pkg_config --exists xencontrol ; then
2540     xen_ctrl_version="$(printf '%d%02d%02d' \
2541       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2542     xen=enabled
2543     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2544     xen_pc="$xen_pc xenevtchn xendevicemodel"
2545     if $pkg_config --exists xentoolcore; then
2546       xen_pc="$xen_pc xentoolcore"
2547     fi
2548     xen_cflags="$($pkg_config --cflags $xen_pc)"
2549     xen_libs="$($pkg_config --libs $xen_pc)"
2550   else
2551
2552     xen_libs="-lxenstore -lxenctrl"
2553     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2554
2555     # First we test whether Xen headers and libraries are available.
2556     # If no, we are done and there is no Xen support.
2557     # If yes, more tests are run to detect the Xen version.
2558
2559     # Xen (any)
2560     cat > $TMPC <<EOF
2561 #include <xenctrl.h>
2562 int main(void) {
2563   return 0;
2564 }
2565 EOF
2566     if ! compile_prog "" "$xen_libs" ; then
2567       # Xen not found
2568       if test "$xen" = "enabled" ; then
2569         feature_not_found "xen" "Install xen devel"
2570       fi
2571       xen=disabled
2572
2573     # Xen unstable
2574     elif
2575         cat > $TMPC <<EOF &&
2576 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2577 #define __XEN_TOOLS__
2578 #include <xendevicemodel.h>
2579 #include <xenforeignmemory.h>
2580 int main(void) {
2581   xendevicemodel_handle *xd;
2582   xenforeignmemory_handle *xfmem;
2583
2584   xd = xendevicemodel_open(0, 0);
2585   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2586
2587   xfmem = xenforeignmemory_open(0, 0);
2588   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2589
2590   return 0;
2591 }
2592 EOF
2593         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2594       then
2595       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2596       xen_ctrl_version=41100
2597       xen=enabled
2598     elif
2599         cat > $TMPC <<EOF &&
2600 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2601 #include <xenforeignmemory.h>
2602 #include <xentoolcore.h>
2603 int main(void) {
2604   xenforeignmemory_handle *xfmem;
2605
2606   xfmem = xenforeignmemory_open(0, 0);
2607   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2608   xentoolcore_restrict_all(0);
2609
2610   return 0;
2611 }
2612 EOF
2613         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2614       then
2615       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2616       xen_ctrl_version=41000
2617       xen=enabled
2618     elif
2619         cat > $TMPC <<EOF &&
2620 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2621 #define __XEN_TOOLS__
2622 #include <xendevicemodel.h>
2623 int main(void) {
2624   xendevicemodel_handle *xd;
2625
2626   xd = xendevicemodel_open(0, 0);
2627   xendevicemodel_close(xd);
2628
2629   return 0;
2630 }
2631 EOF
2632         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2633       then
2634       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2635       xen_ctrl_version=40900
2636       xen=enabled
2637     elif
2638         cat > $TMPC <<EOF &&
2639 /*
2640  * If we have stable libs the we don't want the libxc compat
2641  * layers, regardless of what CFLAGS we may have been given.
2642  *
2643  * Also, check if xengnttab_grant_copy_segment_t is defined and
2644  * grant copy operation is implemented.
2645  */
2646 #undef XC_WANT_COMPAT_EVTCHN_API
2647 #undef XC_WANT_COMPAT_GNTTAB_API
2648 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2649 #include <xenctrl.h>
2650 #include <xenstore.h>
2651 #include <xenevtchn.h>
2652 #include <xengnttab.h>
2653 #include <xenforeignmemory.h>
2654 #include <stdint.h>
2655 #include <xen/hvm/hvm_info_table.h>
2656 #if !defined(HVM_MAX_VCPUS)
2657 # error HVM_MAX_VCPUS not defined
2658 #endif
2659 int main(void) {
2660   xc_interface *xc = NULL;
2661   xenforeignmemory_handle *xfmem;
2662   xenevtchn_handle *xe;
2663   xengnttab_handle *xg;
2664   xengnttab_grant_copy_segment_t* seg = NULL;
2665
2666   xs_daemon_open();
2667
2668   xc = xc_interface_open(0, 0, 0);
2669   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2670   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2671   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2672   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2673
2674   xfmem = xenforeignmemory_open(0, 0);
2675   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2676
2677   xe = xenevtchn_open(0, 0);
2678   xenevtchn_fd(xe);
2679
2680   xg = xengnttab_open(0, 0);
2681   xengnttab_grant_copy(xg, 0, seg);
2682
2683   return 0;
2684 }
2685 EOF
2686         compile_prog "" "$xen_libs $xen_stable_libs"
2687       then
2688       xen_ctrl_version=40800
2689       xen=enabled
2690     elif
2691         cat > $TMPC <<EOF &&
2692 /*
2693  * If we have stable libs the we don't want the libxc compat
2694  * layers, regardless of what CFLAGS we may have been given.
2695  */
2696 #undef XC_WANT_COMPAT_EVTCHN_API
2697 #undef XC_WANT_COMPAT_GNTTAB_API
2698 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2699 #include <xenctrl.h>
2700 #include <xenstore.h>
2701 #include <xenevtchn.h>
2702 #include <xengnttab.h>
2703 #include <xenforeignmemory.h>
2704 #include <stdint.h>
2705 #include <xen/hvm/hvm_info_table.h>
2706 #if !defined(HVM_MAX_VCPUS)
2707 # error HVM_MAX_VCPUS not defined
2708 #endif
2709 int main(void) {
2710   xc_interface *xc = NULL;
2711   xenforeignmemory_handle *xfmem;
2712   xenevtchn_handle *xe;
2713   xengnttab_handle *xg;
2714
2715   xs_daemon_open();
2716
2717   xc = xc_interface_open(0, 0, 0);
2718   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2719   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2720   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2721   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2722
2723   xfmem = xenforeignmemory_open(0, 0);
2724   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2725
2726   xe = xenevtchn_open(0, 0);
2727   xenevtchn_fd(xe);
2728
2729   xg = xengnttab_open(0, 0);
2730   xengnttab_map_grant_ref(xg, 0, 0, 0);
2731
2732   return 0;
2733 }
2734 EOF
2735         compile_prog "" "$xen_libs $xen_stable_libs"
2736       then
2737       xen_ctrl_version=40701
2738       xen=enabled
2739
2740     # Xen 4.6
2741     elif
2742         cat > $TMPC <<EOF &&
2743 #include <xenctrl.h>
2744 #include <xenstore.h>
2745 #include <stdint.h>
2746 #include <xen/hvm/hvm_info_table.h>
2747 #if !defined(HVM_MAX_VCPUS)
2748 # error HVM_MAX_VCPUS not defined
2749 #endif
2750 int main(void) {
2751   xc_interface *xc;
2752   xs_daemon_open();
2753   xc = xc_interface_open(0, 0, 0);
2754   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2755   xc_gnttab_open(NULL, 0);
2756   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2757   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2758   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2759   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2760   return 0;
2761 }
2762 EOF
2763         compile_prog "" "$xen_libs"
2764       then
2765       xen_ctrl_version=40600
2766       xen=enabled
2767
2768     # Xen 4.5
2769     elif
2770         cat > $TMPC <<EOF &&
2771 #include <xenctrl.h>
2772 #include <xenstore.h>
2773 #include <stdint.h>
2774 #include <xen/hvm/hvm_info_table.h>
2775 #if !defined(HVM_MAX_VCPUS)
2776 # error HVM_MAX_VCPUS not defined
2777 #endif
2778 int main(void) {
2779   xc_interface *xc;
2780   xs_daemon_open();
2781   xc = xc_interface_open(0, 0, 0);
2782   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2783   xc_gnttab_open(NULL, 0);
2784   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2785   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2786   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2787   return 0;
2788 }
2789 EOF
2790         compile_prog "" "$xen_libs"
2791       then
2792       xen_ctrl_version=40500
2793       xen=enabled
2794
2795     elif
2796         cat > $TMPC <<EOF &&
2797 #include <xenctrl.h>
2798 #include <xenstore.h>
2799 #include <stdint.h>
2800 #include <xen/hvm/hvm_info_table.h>
2801 #if !defined(HVM_MAX_VCPUS)
2802 # error HVM_MAX_VCPUS not defined
2803 #endif
2804 int main(void) {
2805   xc_interface *xc;
2806   xs_daemon_open();
2807   xc = xc_interface_open(0, 0, 0);
2808   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2809   xc_gnttab_open(NULL, 0);
2810   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2811   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2812   return 0;
2813 }
2814 EOF
2815         compile_prog "" "$xen_libs"
2816       then
2817       xen_ctrl_version=40200
2818       xen=enabled
2819
2820     else
2821       if test "$xen" = "enabled" ; then
2822         feature_not_found "xen (unsupported version)" \
2823                           "Install a supported xen (xen 4.2 or newer)"
2824       fi
2825       xen=disabled
2826     fi
2827
2828     if test "$xen" = enabled; then
2829       if test $xen_ctrl_version -ge 40701  ; then
2830         xen_libs="$xen_libs $xen_stable_libs "
2831       fi
2832     fi
2833   fi
2834 fi
2835
2836 if test "$xen_pci_passthrough" != "disabled"; then
2837   if test "$xen" = "enabled" && test "$linux" = "yes"; then
2838     xen_pci_passthrough=enabled
2839   else
2840     if test "$xen_pci_passthrough" = "enabled"; then
2841       error_exit "User requested feature Xen PCI Passthrough" \
2842           " but this feature requires /sys from Linux"
2843     fi
2844     xen_pci_passthrough=disabled
2845   fi
2846 fi
2847
2848 ##########################################
2849 # gettext probe
2850 if test "$gettext" != "false" ; then
2851   if has xgettext; then
2852     gettext=true
2853   else
2854     if test "$gettext" = "true" ; then
2855       feature_not_found "gettext" "Install xgettext binary"
2856     fi
2857     gettext=false
2858   fi
2859 fi
2860
2861 ##########################################
2862 # X11 probe
2863 if $pkg_config --exists "x11"; then
2864     have_x11=yes
2865     x11_cflags=$($pkg_config --cflags x11)
2866     x11_libs=$($pkg_config --libs x11)
2867 fi
2868
2869 ##########################################
2870 # GTK probe
2871
2872 if test "$gtk" != "no"; then
2873     gtkpackage="gtk+-3.0"
2874     gtkx11package="gtk+-x11-3.0"
2875     gtkversion="3.22.0"
2876     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2877         gtk_cflags=$($pkg_config --cflags $gtkpackage)
2878         gtk_libs=$($pkg_config --libs $gtkpackage)
2879         gtk_version=$($pkg_config --modversion $gtkpackage)
2880         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2881             need_x11=yes
2882             gtk_cflags="$gtk_cflags $x11_cflags"
2883             gtk_libs="$gtk_libs $x11_libs"
2884         fi
2885         gtk="yes"
2886     elif test "$gtk" = "yes"; then
2887         feature_not_found "gtk" "Install gtk3-devel"
2888     else
2889         gtk="no"
2890     fi
2891 fi
2892
2893
2894 ##########################################
2895 # GNUTLS probe
2896
2897 if test "$gnutls" != "no"; then
2898     pass="no"
2899     if $pkg_config --exists "gnutls >= 3.1.18"; then
2900         gnutls_cflags=$($pkg_config --cflags gnutls)
2901         gnutls_libs=$($pkg_config --libs gnutls)
2902         # Packaging for the static libraries is not always correct.
2903         # At least ubuntu 18.04 ships only shared libraries.
2904         write_c_skeleton
2905         if compile_prog "" "$gnutls_libs" ; then
2906             pass="yes"
2907         fi
2908     fi
2909     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2910         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2911     else
2912         gnutls="$pass"
2913     fi
2914 fi
2915
2916
2917 # If user didn't give a --disable/enable-gcrypt flag,
2918 # then mark as disabled if user requested nettle
2919 # explicitly
2920 if test -z "$gcrypt"
2921 then
2922     if test "$nettle" = "yes"
2923     then
2924         gcrypt="no"
2925     fi
2926 fi
2927
2928 # If user didn't give a --disable/enable-nettle flag,
2929 # then mark as disabled if user requested gcrypt
2930 # explicitly
2931 if test -z "$nettle"
2932 then
2933     if test "$gcrypt" = "yes"
2934     then
2935         nettle="no"
2936     fi
2937 fi
2938
2939 has_libgcrypt() {
2940     if ! has "libgcrypt-config"
2941     then
2942         return 1
2943     fi
2944
2945     if test -n "$cross_prefix"
2946     then
2947         host=$(libgcrypt-config --host)
2948         if test "$host-" != $cross_prefix
2949         then
2950             return 1
2951         fi
2952     fi
2953
2954     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2955     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2956
2957     if test $maj != 1 || test $min -lt 5
2958     then
2959        return 1
2960     fi
2961
2962     return 0
2963 }
2964
2965
2966 if test "$nettle" != "no"; then
2967     pass="no"
2968     if $pkg_config --exists "nettle >= 2.7.1"; then
2969         nettle_cflags=$($pkg_config --cflags nettle)
2970         nettle_libs=$($pkg_config --libs nettle)
2971         nettle_version=$($pkg_config --modversion nettle)
2972         # Link test to make sure the given libraries work (e.g for static).
2973         write_c_skeleton
2974         if compile_prog "" "$nettle_libs" ; then
2975             if test -z "$gcrypt"; then
2976                gcrypt="no"
2977             fi
2978             pass="yes"
2979         fi
2980     fi
2981     if test "$pass" = "yes"
2982     then
2983         cat > $TMPC << EOF
2984 #include <nettle/xts.h>
2985 int main(void) {
2986   return 0;
2987 }
2988 EOF
2989         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2990             nettle_xts=yes
2991             qemu_private_xts=no
2992         fi
2993     fi
2994     if test "$pass" = "no" && test "$nettle" = "yes"; then
2995         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2996     else
2997         nettle="$pass"
2998     fi
2999 fi
3000
3001 if test "$gcrypt" != "no"; then
3002     pass="no"
3003     if has_libgcrypt; then
3004         gcrypt_cflags=$(libgcrypt-config --cflags)
3005         gcrypt_libs=$(libgcrypt-config --libs)
3006         # Debian has removed -lgpg-error from libgcrypt-config
3007         # as it "spreads unnecessary dependencies" which in
3008         # turn breaks static builds...
3009         if test "$static" = "yes"
3010         then
3011             gcrypt_libs="$gcrypt_libs -lgpg-error"
3012         fi
3013
3014         # Link test to make sure the given libraries work (e.g for static).
3015         write_c_skeleton
3016         if compile_prog "" "$gcrypt_libs" ; then
3017             pass="yes"
3018         fi
3019     fi
3020     if test "$pass" = "yes"; then
3021         gcrypt="yes"
3022         cat > $TMPC << EOF
3023 #include <gcrypt.h>
3024 int main(void) {
3025   gcry_mac_hd_t handle;
3026   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3027                 GCRY_MAC_FLAG_SECURE, NULL);
3028   return 0;
3029 }
3030 EOF
3031         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3032             gcrypt_hmac=yes
3033         fi
3034         cat > $TMPC << EOF
3035 #include <gcrypt.h>
3036 int main(void) {
3037   gcry_cipher_hd_t handle;
3038   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3039   return 0;
3040 }
3041 EOF
3042         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3043             gcrypt_xts=yes
3044             qemu_private_xts=no
3045         fi
3046     elif test "$gcrypt" = "yes"; then
3047         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3048     else
3049         gcrypt="no"
3050     fi
3051 fi
3052
3053
3054 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3055 then
3056     error_exit "Only one of gcrypt & nettle can be enabled"
3057 fi
3058
3059 ##########################################
3060 # libtasn1 - only for the TLS creds/session test suite
3061
3062 tasn1=yes
3063 tasn1_cflags=""
3064 tasn1_libs=""
3065 if $pkg_config --exists "libtasn1"; then
3066     tasn1_cflags=$($pkg_config --cflags libtasn1)
3067     tasn1_libs=$($pkg_config --libs libtasn1)
3068 else
3069     tasn1=no
3070 fi
3071
3072
3073 ##########################################
3074 # PAM probe
3075
3076 if test "$auth_pam" != "no"; then
3077     cat > $TMPC <<EOF
3078 #include <security/pam_appl.h>
3079 #include <stdio.h>
3080 int main(void) {
3081    const char *service_name = "qemu";
3082    const char *user = "frank";
3083    const struct pam_conv pam_conv = { 0 };
3084    pam_handle_t *pamh = NULL;
3085    pam_start(service_name, user, &pam_conv, &pamh);
3086    return 0;
3087 }
3088 EOF
3089     if compile_prog "" "-lpam" ; then
3090         auth_pam=yes
3091     else
3092         if test "$auth_pam" = "yes"; then
3093             feature_not_found "PAM" "Install PAM development package"
3094         else
3095             auth_pam=no
3096         fi
3097     fi
3098 fi
3099
3100 ##########################################
3101 # getifaddrs (for tests/test-io-channel-socket )
3102
3103 have_ifaddrs_h=yes
3104 if ! check_include "ifaddrs.h" ; then
3105   have_ifaddrs_h=no
3106 fi
3107
3108 #########################################
3109 # libdrm check
3110 have_drm_h=no
3111 if check_include "libdrm/drm.h" ; then
3112     have_drm_h=yes
3113 fi
3114
3115 #########################################
3116 # sys/signal.h check
3117 have_sys_signal_h=no
3118 if check_include "sys/signal.h" ; then
3119   have_sys_signal_h=yes
3120 fi
3121
3122 ##########################################
3123 # VTE probe
3124
3125 if test "$vte" != "no"; then
3126     vteminversion="0.32.0"
3127     if $pkg_config --exists "vte-2.91"; then
3128       vtepackage="vte-2.91"
3129     else
3130       vtepackage="vte-2.90"
3131     fi
3132     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3133         vte_cflags=$($pkg_config --cflags $vtepackage)
3134         vte_libs=$($pkg_config --libs $vtepackage)
3135         vteversion=$($pkg_config --modversion $vtepackage)
3136         vte="yes"
3137     elif test "$vte" = "yes"; then
3138         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3139     else
3140         vte="no"
3141     fi
3142 fi
3143
3144 ##########################################
3145 # RDMA needs OpenFabrics libraries
3146 if test "$rdma" != "no" ; then
3147   cat > $TMPC <<EOF
3148 #include <rdma/rdma_cma.h>
3149 int main(void) { return 0; }
3150 EOF
3151   rdma_libs="-lrdmacm -libverbs -libumad"
3152   if compile_prog "" "$rdma_libs" ; then
3153     rdma="yes"
3154   else
3155     if test "$rdma" = "yes" ; then
3156         error_exit \
3157             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3158             " Your options:" \
3159             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3160             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3161             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3162     fi
3163     rdma="no"
3164   fi
3165 fi
3166
3167 ##########################################
3168 # PVRDMA detection
3169
3170 cat > $TMPC <<EOF &&
3171 #include <sys/mman.h>
3172
3173 int
3174 main(void)
3175 {
3176     char buf = 0;
3177     void *addr = &buf;
3178     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3179
3180     return 0;
3181 }
3182 EOF
3183
3184 if test "$rdma" = "yes" ; then
3185     case "$pvrdma" in
3186     "")
3187         if compile_prog "" ""; then
3188             pvrdma="yes"
3189         else
3190             pvrdma="no"
3191         fi
3192         ;;
3193     "yes")
3194         if ! compile_prog "" ""; then
3195             error_exit "PVRDMA is not supported since mremap is not implemented"
3196         fi
3197         pvrdma="yes"
3198         ;;
3199     "no")
3200         pvrdma="no"
3201         ;;
3202     esac
3203 else
3204     if test "$pvrdma" = "yes" ; then
3205         error_exit "PVRDMA requires rdma suppport"
3206     fi
3207     pvrdma="no"
3208 fi
3209
3210 # Let's see if enhanced reg_mr is supported
3211 if test "$pvrdma" = "yes" ; then
3212
3213 cat > $TMPC <<EOF &&
3214 #include <infiniband/verbs.h>
3215
3216 int
3217 main(void)
3218 {
3219     struct ibv_mr *mr;
3220     struct ibv_pd *pd = NULL;
3221     size_t length = 10;
3222     uint64_t iova = 0;
3223     int access = 0;
3224     void *addr = NULL;
3225
3226     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3227
3228     ibv_dereg_mr(mr);
3229
3230     return 0;
3231 }
3232 EOF
3233     if ! compile_prog "" "-libverbs"; then
3234         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3235     fi
3236 fi
3237
3238 ##########################################
3239 # xfsctl() probe, used for file-posix.c
3240 if test "$xfs" != "no" ; then
3241   cat > $TMPC << EOF
3242 #include <stddef.h>  /* NULL */
3243 #include <xfs/xfs.h>
3244 int main(void)
3245 {
3246     xfsctl(NULL, 0, 0, NULL);
3247     return 0;
3248 }
3249 EOF
3250   if compile_prog "" "" ; then
3251     xfs="yes"
3252   else
3253     if test "$xfs" = "yes" ; then
3254       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3255     fi
3256     xfs=no
3257   fi
3258 fi
3259
3260 ##########################################
3261 # vde libraries probe
3262 if test "$vde" != "no" ; then
3263   vde_libs="-lvdeplug"
3264   cat > $TMPC << EOF
3265 #include <libvdeplug.h>
3266 int main(void)
3267 {
3268     struct vde_open_args a = {0, 0, 0};
3269     char s[] = "";
3270     vde_open(s, s, &a);
3271     return 0;
3272 }
3273 EOF
3274   if compile_prog "" "$vde_libs" ; then
3275     vde=yes
3276   else
3277     if test "$vde" = "yes" ; then
3278       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3279     fi
3280     vde=no
3281   fi
3282 fi
3283
3284 ##########################################
3285 # netmap support probe
3286 # Apart from looking for netmap headers, we make sure that the host API version
3287 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3288 # a minor/major version number. Minor new features will be marked with values up
3289 # to 15, and if something happens that requires a change to the backend we will
3290 # move above 15, submit the backend fixes and modify this two bounds.
3291 if test "$netmap" != "no" ; then
3292   cat > $TMPC << EOF
3293 #include <inttypes.h>
3294 #include <net/if.h>
3295 #include <net/netmap.h>
3296 #include <net/netmap_user.h>
3297 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3298 #error
3299 #endif
3300 int main(void) { return 0; }
3301 EOF
3302   if compile_prog "" "" ; then
3303     netmap=yes
3304   else
3305     if test "$netmap" = "yes" ; then
3306       feature_not_found "netmap"
3307     fi
3308     netmap=no
3309   fi
3310 fi
3311
3312 ##########################################
3313 # libcap-ng library probe
3314 if test "$cap_ng" != "no" ; then
3315   cap_libs="-lcap-ng"
3316   cat > $TMPC << EOF
3317 #include <cap-ng.h>
3318 int main(void)
3319 {
3320     capng_capability_to_name(CAPNG_EFFECTIVE);
3321     return 0;
3322 }
3323 EOF
3324   if compile_prog "" "$cap_libs" ; then
3325     cap_ng=yes
3326   else
3327     if test "$cap_ng" = "yes" ; then
3328       feature_not_found "cap_ng" "Install libcap-ng devel"
3329     fi
3330     cap_ng=no
3331   fi
3332 fi
3333
3334 ##########################################
3335 # Sound support libraries probe
3336
3337 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3338 for drv in $audio_drv_list; do
3339     case $drv in
3340     alsa | try-alsa)
3341     if $pkg_config alsa --exists; then
3342         alsa_libs=$($pkg_config alsa --libs)
3343         alsa_cflags=$($pkg_config alsa --cflags)
3344         alsa=yes
3345         if test "$drv" = "try-alsa"; then
3346             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3347         fi
3348     else
3349         if test "$drv" = "try-alsa"; then
3350             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3351         else
3352             error_exit "$drv check failed" \
3353                 "Make sure to have the $drv libs and headers installed."
3354         fi
3355     fi
3356     ;;
3357
3358     pa | try-pa)
3359     if $pkg_config libpulse --exists; then
3360         libpulse=yes
3361         pulse_libs=$($pkg_config libpulse --libs)
3362         pulse_cflags=$($pkg_config libpulse --cflags)
3363         if test "$drv" = "try-pa"; then
3364             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3365         fi
3366     else
3367         if test "$drv" = "try-pa"; then
3368             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3369         else
3370             error_exit "$drv check failed" \
3371                 "Make sure to have the $drv libs and headers installed."
3372         fi
3373     fi
3374     ;;
3375
3376     sdl)
3377     if test "$sdl" = "no"; then
3378         error_exit "sdl not found or disabled, can not use sdl audio driver"
3379     fi
3380     ;;
3381
3382     try-sdl)
3383     if test "$sdl" = "no"; then
3384         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3385     else
3386         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3387     fi
3388     ;;
3389
3390     coreaudio)
3391       coreaudio_libs="-framework CoreAudio"
3392     ;;
3393
3394     dsound)
3395       dsound_libs="-lole32 -ldxguid"
3396       audio_win_int="yes"
3397     ;;
3398
3399     oss)
3400       oss_libs="$oss_lib"
3401     ;;
3402
3403     jack | try-jack)
3404     if $pkg_config jack --exists; then
3405         libjack=yes
3406         jack_libs=$($pkg_config jack --libs)
3407         if test "$drv" = "try-jack"; then
3408             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3409         fi
3410     else
3411         if test "$drv" = "try-jack"; then
3412             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3413         else
3414             error_exit "$drv check failed" \
3415                 "Make sure to have the $drv libs and headers installed."
3416         fi
3417     fi
3418     ;;
3419
3420     *)
3421     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3422         error_exit "Unknown driver '$drv' selected" \
3423             "Possible drivers are: $audio_possible_drivers"
3424     }
3425     ;;
3426     esac
3427 done
3428
3429 ##########################################
3430 # BrlAPI probe
3431
3432 if test "$brlapi" != "no" ; then
3433   brlapi_libs="-lbrlapi"
3434   cat > $TMPC << EOF
3435 #include <brlapi.h>
3436 #include <stddef.h>
3437 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3438 EOF
3439   if compile_prog "" "$brlapi_libs" ; then
3440     brlapi=yes
3441   else
3442     if test "$brlapi" = "yes" ; then
3443       feature_not_found "brlapi" "Install brlapi devel"
3444     fi
3445     brlapi=no
3446   fi
3447 fi
3448
3449 ##########################################
3450 # curl probe
3451 if test "$curl" != "no" ; then
3452   if $pkg_config libcurl --exists; then
3453     curlconfig="$pkg_config libcurl"
3454   else
3455     curlconfig=curl-config
3456   fi
3457   cat > $TMPC << EOF
3458 #include <curl/curl.h>
3459 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3460 EOF
3461   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3462   curl_libs=$($curlconfig --libs 2>/dev/null)
3463   if compile_prog "$curl_cflags" "$curl_libs" ; then
3464     curl=yes
3465   else
3466     if test "$curl" = "yes" ; then
3467       feature_not_found "curl" "Install libcurl devel"
3468     fi
3469     curl=no
3470   fi
3471 fi # test "$curl"
3472
3473 ##########################################
3474 # glib support probe
3475
3476 glib_req_ver=2.48
3477 glib_modules=gthread-2.0
3478 if test "$modules" = yes; then
3479     glib_modules="$glib_modules gmodule-export-2.0"
3480 fi
3481 if test "$plugins" = yes; then
3482     glib_modules="$glib_modules gmodule-2.0"
3483 fi
3484
3485 for i in $glib_modules; do
3486     if $pkg_config --atleast-version=$glib_req_ver $i; then
3487         glib_cflags=$($pkg_config --cflags $i)
3488         glib_libs=$($pkg_config --libs $i)
3489     else
3490         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3491     fi
3492 done
3493
3494 # This workaround is required due to a bug in pkg-config file for glib as it
3495 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3496
3497 if test "$static" = yes && test "$mingw32" = yes; then
3498     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3499 fi
3500
3501 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3502     gio_cflags=$($pkg_config --cflags gio-2.0)
3503     gio_libs=$($pkg_config --libs gio-2.0)
3504     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3505     if [ ! -x "$gdbus_codegen" ]; then
3506         gdbus_codegen=
3507     fi
3508     # Check that the libraries actually work -- Ubuntu 18.04 ships
3509     # with pkg-config --static --libs data for gio-2.0 that is missing
3510     # -lblkid and will give a link error.
3511     cat > $TMPC <<EOF
3512 #include <gio/gio.h>
3513 int main(void)
3514 {
3515     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3516     return 0;
3517 }
3518 EOF
3519     if compile_prog "$gio_cflags" "$gio_libs" ; then
3520         gio=yes
3521     else
3522         gio=no
3523     fi
3524 else
3525     gio=no
3526 fi
3527
3528 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3529     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3530     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3531 fi
3532
3533 # Sanity check that the current size_t matches the
3534 # size that glib thinks it should be. This catches
3535 # problems on multi-arch where people try to build
3536 # 32-bit QEMU while pointing at 64-bit glib headers
3537 cat > $TMPC <<EOF
3538 #include <glib.h>
3539 #include <unistd.h>
3540
3541 #define QEMU_BUILD_BUG_ON(x) \
3542   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3543
3544 int main(void) {
3545    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3546    return 0;
3547 }
3548 EOF
3549
3550 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3551     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3552                "You probably need to set PKG_CONFIG_LIBDIR"\
3553                "to point to the right pkg-config files for your"\
3554                "build target"
3555 fi
3556
3557 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3558 cat > $TMPC << EOF
3559 #include <glib.h>
3560 int main(void) { return 0; }
3561 EOF
3562 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3563     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3564         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3565         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3566     fi
3567 fi
3568
3569 # Silence clang warnings triggered by glib < 2.57.2
3570 cat > $TMPC << EOF
3571 #include <glib.h>
3572 typedef struct Foo {
3573     int i;
3574 } Foo;
3575 static void foo_free(Foo *f)
3576 {
3577     g_free(f);
3578 }
3579 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3580 int main(void) { return 0; }
3581 EOF
3582 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3583     if cc_has_warning_flag "-Wno-unused-function"; then
3584         glib_cflags="$glib_cflags -Wno-unused-function"
3585         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3586     fi
3587 fi
3588
3589 ##########################################
3590 # SHA command probe for modules
3591 if test "$modules" = yes; then
3592     shacmd_probe="sha1sum sha1 shasum"
3593     for c in $shacmd_probe; do
3594         if has $c; then
3595             shacmd="$c"
3596             break
3597         fi
3598     done
3599     if test "$shacmd" = ""; then
3600         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3601     fi
3602 fi
3603
3604 ##########################################
3605 # pthread probe
3606 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3607
3608 pthread=no
3609 cat > $TMPC << EOF
3610 #include <pthread.h>
3611 static void *f(void *p) { return NULL; }
3612 int main(void) {
3613   pthread_t thread;
3614   pthread_create(&thread, 0, f, 0);
3615   return 0;
3616 }
3617 EOF
3618 if compile_prog "" "" ; then
3619   pthread=yes
3620 else
3621   for pthread_lib in $PTHREADLIBS_LIST; do
3622     if compile_prog "" "$pthread_lib" ; then
3623       pthread=yes
3624       found=no
3625       for lib_entry in $LIBS; do
3626         if test "$lib_entry" = "$pthread_lib"; then
3627           found=yes
3628           break
3629         fi
3630       done
3631       if test "$found" = "no"; then
3632         LIBS="$pthread_lib $LIBS"
3633       fi
3634       break
3635     fi
3636   done
3637 fi
3638
3639 if test "$mingw32" != yes && test "$pthread" = no; then
3640   error_exit "pthread check failed" \
3641       "Make sure to have the pthread libs and headers installed."
3642 fi
3643
3644 # check for pthread_setname_np with thread id
3645 pthread_setname_np_w_tid=no
3646 cat > $TMPC << EOF
3647 #include <pthread.h>
3648
3649 static void *f(void *p) { return NULL; }
3650 int main(void)
3651 {
3652     pthread_t thread;
3653     pthread_create(&thread, 0, f, 0);
3654     pthread_setname_np(thread, "QEMU");
3655     return 0;
3656 }
3657 EOF
3658 if compile_prog "" "$pthread_lib" ; then
3659   pthread_setname_np_w_tid=yes
3660 fi
3661
3662 # check for pthread_setname_np without thread id
3663 pthread_setname_np_wo_tid=no
3664 cat > $TMPC << EOF
3665 #include <pthread.h>
3666
3667 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3668 int main(void)
3669 {
3670     pthread_t thread;
3671     pthread_create(&thread, 0, f, 0);
3672     return 0;
3673 }
3674 EOF
3675 if compile_prog "" "$pthread_lib" ; then
3676   pthread_setname_np_wo_tid=yes
3677 fi
3678
3679 ##########################################
3680 # rbd probe
3681 if test "$rbd" != "no" ; then
3682   cat > $TMPC <<EOF
3683 #include <stdio.h>
3684 #include <rbd/librbd.h>
3685 int main(void) {
3686     rados_t cluster;
3687     rados_create(&cluster, NULL);
3688     return 0;
3689 }
3690 EOF
3691   rbd_libs="-lrbd -lrados"
3692   if compile_prog "" "$rbd_libs" ; then
3693     rbd=yes
3694   else
3695     if test "$rbd" = "yes" ; then
3696       feature_not_found "rados block device" "Install librbd/ceph devel"
3697     fi
3698     rbd=no
3699   fi
3700 fi
3701
3702 ##########################################
3703 # libssh probe
3704 if test "$libssh" != "no" ; then
3705   if $pkg_config --exists libssh; then
3706     libssh_cflags=$($pkg_config libssh --cflags)
3707     libssh_libs=$($pkg_config libssh --libs)
3708     libssh=yes
3709   else
3710     if test "$libssh" = "yes" ; then
3711       error_exit "libssh required for --enable-libssh"
3712     fi
3713     libssh=no
3714   fi
3715 fi
3716
3717 ##########################################
3718 # Check for libssh 0.8
3719 # This is done like this instead of using the LIBSSH_VERSION_* and
3720 # SSH_VERSION_* macros because some distributions in the past shipped
3721 # snapshots of the future 0.8 from Git, and those snapshots did not
3722 # have updated version numbers (still referring to 0.7.0).
3723
3724 if test "$libssh" = "yes"; then
3725   cat > $TMPC <<EOF
3726 #include <libssh/libssh.h>
3727 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3728 EOF
3729   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3730     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3731   fi
3732 fi
3733
3734 ##########################################
3735 # linux-aio probe
3736
3737 if test "$linux_aio" != "no" ; then
3738   cat > $TMPC <<EOF
3739 #include <libaio.h>
3740 #include <sys/eventfd.h>
3741 #include <stddef.h>
3742 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3743 EOF
3744   if compile_prog "" "-laio" ; then
3745     linux_aio=yes
3746   else
3747     if test "$linux_aio" = "yes" ; then
3748       feature_not_found "linux AIO" "Install libaio devel"
3749     fi
3750     linux_aio=no
3751   fi
3752 fi
3753 ##########################################
3754 # linux-io-uring probe
3755
3756 if test "$linux_io_uring" != "no" ; then
3757   if $pkg_config liburing; then
3758     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3759     linux_io_uring_libs=$($pkg_config --libs liburing)
3760     linux_io_uring=yes
3761   else
3762     if test "$linux_io_uring" = "yes" ; then
3763       feature_not_found "linux io_uring" "Install liburing devel"
3764     fi
3765     linux_io_uring=no
3766   fi
3767 fi
3768
3769 ##########################################
3770 # TPM emulation is only on POSIX
3771
3772 if test "$tpm" = ""; then
3773   if test "$mingw32" = "yes"; then
3774     tpm=no
3775   else
3776     tpm=yes
3777   fi
3778 elif test "$tpm" = "yes"; then
3779   if test "$mingw32" = "yes" ; then
3780     error_exit "TPM emulation only available on POSIX systems"
3781   fi
3782 fi
3783
3784 ##########################################
3785 # attr probe
3786
3787 libattr_libs=
3788 if test "$attr" != "no" ; then
3789   cat > $TMPC <<EOF
3790 #include <stdio.h>
3791 #include <sys/types.h>
3792 #ifdef CONFIG_LIBATTR
3793 #include <attr/xattr.h>
3794 #else
3795 #include <sys/xattr.h>
3796 #endif
3797 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
3798 EOF
3799   if compile_prog "" "" ; then
3800     attr=yes
3801   # Older distros have <attr/xattr.h>, and need -lattr:
3802   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
3803     attr=yes
3804     libattr_libs="-lattr"
3805     libattr=yes
3806   else
3807     if test "$attr" = "yes" ; then
3808       feature_not_found "ATTR" "Install libc6 or libattr devel"
3809     fi
3810     attr=no
3811   fi
3812 fi
3813
3814 ##########################################
3815 # iovec probe
3816 cat > $TMPC <<EOF
3817 #include <sys/types.h>
3818 #include <sys/uio.h>
3819 #include <unistd.h>
3820 int main(void) { return sizeof(struct iovec); }
3821 EOF
3822 iovec=no
3823 if compile_prog "" "" ; then
3824   iovec=yes
3825 fi
3826
3827 ##########################################
3828 # preadv probe
3829 cat > $TMPC <<EOF
3830 #include <sys/types.h>
3831 #include <sys/uio.h>
3832 #include <unistd.h>
3833 int main(void) { return preadv(0, 0, 0, 0); }
3834 EOF
3835 preadv=no
3836 if compile_prog "" "" ; then
3837   preadv=yes
3838 fi
3839
3840 ##########################################
3841 # fdt probe
3842
3843 case "$fdt" in
3844   auto | enabled | internal)
3845     # Simpler to always update submodule, even if not needed.
3846     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
3847       git_submodules="${git_submodules} dtc"
3848     fi
3849     ;;
3850 esac
3851
3852 ##########################################
3853 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3854
3855 gbm="no"
3856 if $pkg_config gbm; then
3857     gbm_cflags="$($pkg_config --cflags gbm)"
3858     gbm_libs="$($pkg_config --libs gbm)"
3859     gbm="yes"
3860 fi
3861
3862 if test "$opengl" != "no" ; then
3863   opengl_pkgs="epoxy gbm"
3864   if $pkg_config $opengl_pkgs; then
3865     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3866     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3867     opengl=yes
3868     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
3869         gtk_gl="yes"
3870     fi
3871   else
3872     if test "$opengl" = "yes" ; then
3873       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3874     fi
3875     opengl_cflags=""
3876     opengl_libs=""
3877     opengl=no
3878   fi
3879 fi
3880
3881 if test "$opengl" = "yes"; then
3882   cat > $TMPC << EOF
3883 #include <epoxy/egl.h>
3884 #ifndef EGL_MESA_image_dma_buf_export
3885 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3886 #endif
3887 int main(void) { return 0; }
3888 EOF
3889   if compile_prog "" "" ; then
3890     opengl_dmabuf=yes
3891   fi
3892 fi
3893
3894 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
3895   for target in $target_list; do
3896     case $target in
3897       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
3898         need_x11=yes
3899       ;;
3900     esac
3901   done
3902 fi
3903
3904 ##########################################
3905 # libxml2 probe
3906 if test "$libxml2" != "no" ; then
3907     if $pkg_config --exists libxml-2.0; then
3908         libxml2="yes"
3909         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3910         libxml2_libs=$($pkg_config --libs libxml-2.0)
3911     else
3912         if test "$libxml2" = "yes"; then
3913             feature_not_found "libxml2" "Install libxml2 devel"
3914         fi
3915         libxml2="no"
3916     fi
3917 fi
3918
3919 ##########################################
3920 # glusterfs probe
3921 if test "$glusterfs" != "no" ; then
3922   if $pkg_config --atleast-version=3 glusterfs-api; then
3923     glusterfs="yes"
3924     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
3925     glusterfs_libs=$($pkg_config --libs glusterfs-api)
3926     if $pkg_config --atleast-version=4 glusterfs-api; then
3927       glusterfs_xlator_opt="yes"
3928     fi
3929     if $pkg_config --atleast-version=5 glusterfs-api; then
3930       glusterfs_discard="yes"
3931     fi
3932     if $pkg_config --atleast-version=6 glusterfs-api; then
3933       glusterfs_fallocate="yes"
3934       glusterfs_zerofill="yes"
3935     fi
3936     cat > $TMPC << EOF
3937 #include <glusterfs/api/glfs.h>
3938
3939 int
3940 main(void)
3941 {
3942         /* new glfs_ftruncate() passes two additional args */
3943         return glfs_ftruncate(NULL, 0, NULL, NULL);
3944 }
3945 EOF
3946     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3947       glusterfs_ftruncate_has_stat="yes"
3948     fi
3949     cat > $TMPC << EOF
3950 #include <glusterfs/api/glfs.h>
3951
3952 /* new glfs_io_cbk() passes two additional glfs_stat structs */
3953 static void
3954 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
3955 {}
3956
3957 int
3958 main(void)
3959 {
3960         glfs_io_cbk iocb = &glusterfs_iocb;
3961         iocb(NULL, 0 , NULL, NULL, NULL);
3962         return 0;
3963 }
3964 EOF
3965     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3966       glusterfs_iocb_has_stat="yes"
3967     fi
3968   else
3969     if test "$glusterfs" = "yes" ; then
3970       feature_not_found "GlusterFS backend support" \
3971           "Install glusterfs-api devel >= 3"
3972     fi
3973     glusterfs="no"
3974   fi
3975 fi
3976
3977 # Check for inotify functions when we are building linux-user
3978 # emulator.  This is done because older glibc versions don't
3979 # have syscall stubs for these implemented.  In that case we
3980 # don't provide them even if kernel supports them.
3981 #
3982 inotify=no
3983 cat > $TMPC << EOF
3984 #include <sys/inotify.h>
3985
3986 int
3987 main(void)
3988 {
3989         /* try to start inotify */
3990         return inotify_init();
3991 }
3992 EOF
3993 if compile_prog "" "" ; then
3994   inotify=yes
3995 fi
3996
3997 inotify1=no
3998 cat > $TMPC << EOF
3999 #include <sys/inotify.h>
4000
4001 int
4002 main(void)
4003 {
4004     /* try to start inotify */
4005     return inotify_init1(0);
4006 }
4007 EOF
4008 if compile_prog "" "" ; then
4009   inotify1=yes
4010 fi
4011
4012 # check if pipe2 is there
4013 pipe2=no
4014 cat > $TMPC << EOF
4015 #include <unistd.h>
4016 #include <fcntl.h>
4017
4018 int main(void)
4019 {
4020     int pipefd[2];
4021     return pipe2(pipefd, O_CLOEXEC);
4022 }
4023 EOF
4024 if compile_prog "" "" ; then
4025   pipe2=yes
4026 fi
4027
4028 # check if accept4 is there
4029 accept4=no
4030 cat > $TMPC << EOF
4031 #include <sys/socket.h>
4032 #include <stddef.h>
4033
4034 int main(void)
4035 {
4036     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4037     return 0;
4038 }
4039 EOF
4040 if compile_prog "" "" ; then
4041   accept4=yes
4042 fi
4043
4044 # check if tee/splice is there. vmsplice was added same time.
4045 splice=no
4046 cat > $TMPC << EOF
4047 #include <unistd.h>
4048 #include <fcntl.h>
4049 #include <limits.h>
4050
4051 int main(void)
4052 {
4053     int len, fd = 0;
4054     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4055     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4056     return 0;
4057 }
4058 EOF
4059 if compile_prog "" "" ; then
4060   splice=yes
4061 fi
4062
4063 ##########################################
4064 # libnuma probe
4065
4066 if test "$numa" != "no" ; then
4067   cat > $TMPC << EOF
4068 #include <numa.h>
4069 int main(void) { return numa_available(); }
4070 EOF
4071
4072   if compile_prog "" "-lnuma" ; then
4073     numa=yes
4074     numa_libs="-lnuma"
4075   else
4076     if test "$numa" = "yes" ; then
4077       feature_not_found "numa" "install numactl devel"
4078     fi
4079     numa=no
4080   fi
4081 fi
4082
4083 malloc=system
4084 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4085     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4086     exit 1
4087 elif test "$tcmalloc" = "yes" ; then
4088     malloc=tcmalloc
4089 elif test "$jemalloc" = "yes" ; then
4090     malloc=jemalloc
4091 fi
4092
4093 ##########################################
4094 # signalfd probe
4095 signalfd="no"
4096 cat > $TMPC << EOF
4097 #include <unistd.h>
4098 #include <sys/syscall.h>
4099 #include <signal.h>
4100 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4101 EOF
4102
4103 if compile_prog "" "" ; then
4104   signalfd=yes
4105 fi
4106
4107 # check if optreset global is declared by <getopt.h>
4108 optreset="no"
4109 cat > $TMPC << EOF
4110 #include <getopt.h>
4111 int main(void) { return optreset; }
4112 EOF
4113
4114 if compile_prog "" "" ; then
4115   optreset=yes
4116 fi
4117
4118 # check if eventfd is supported
4119 eventfd=no
4120 cat > $TMPC << EOF
4121 #include <sys/eventfd.h>
4122
4123 int main(void)
4124 {
4125     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4126 }
4127 EOF
4128 if compile_prog "" "" ; then
4129   eventfd=yes
4130 fi
4131
4132 # check if memfd is supported
4133 memfd=no
4134 cat > $TMPC << EOF
4135 #include <sys/mman.h>
4136
4137 int main(void)
4138 {
4139     return memfd_create("foo", MFD_ALLOW_SEALING);
4140 }
4141 EOF
4142 if compile_prog "" "" ; then
4143   memfd=yes
4144 fi
4145
4146 # check for usbfs
4147 have_usbfs=no
4148 if test "$linux_user" = "yes"; then
4149   cat > $TMPC << EOF
4150 #include <linux/usbdevice_fs.h>
4151
4152 #ifndef USBDEVFS_GET_CAPABILITIES
4153 #error "USBDEVFS_GET_CAPABILITIES undefined"
4154 #endif
4155
4156 #ifndef USBDEVFS_DISCONNECT_CLAIM
4157 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4158 #endif
4159
4160 int main(void)
4161 {
4162     return 0;
4163 }
4164 EOF
4165   if compile_prog "" ""; then
4166     have_usbfs=yes
4167   fi
4168 fi
4169
4170 # check for fallocate
4171 fallocate=no
4172 cat > $TMPC << EOF
4173 #include <fcntl.h>
4174
4175 int main(void)
4176 {
4177     fallocate(0, 0, 0, 0);
4178     return 0;
4179 }
4180 EOF
4181 if compile_prog "" "" ; then
4182   fallocate=yes
4183 fi
4184
4185 # check for fallocate hole punching
4186 fallocate_punch_hole=no
4187 cat > $TMPC << EOF
4188 #include <fcntl.h>
4189 #include <linux/falloc.h>
4190
4191 int main(void)
4192 {
4193     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4194     return 0;
4195 }
4196 EOF
4197 if compile_prog "" "" ; then
4198   fallocate_punch_hole=yes
4199 fi
4200
4201 # check that fallocate supports range zeroing inside the file
4202 fallocate_zero_range=no
4203 cat > $TMPC << EOF
4204 #include <fcntl.h>
4205 #include <linux/falloc.h>
4206
4207 int main(void)
4208 {
4209     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4210     return 0;
4211 }
4212 EOF
4213 if compile_prog "" "" ; then
4214   fallocate_zero_range=yes
4215 fi
4216
4217 # check for posix_fallocate
4218 posix_fallocate=no
4219 cat > $TMPC << EOF
4220 #include <fcntl.h>
4221
4222 int main(void)
4223 {
4224     posix_fallocate(0, 0, 0);
4225     return 0;
4226 }
4227 EOF
4228 if compile_prog "" "" ; then
4229     posix_fallocate=yes
4230 fi
4231
4232 # check for sync_file_range
4233 sync_file_range=no
4234 cat > $TMPC << EOF
4235 #include <fcntl.h>
4236
4237 int main(void)
4238 {
4239     sync_file_range(0, 0, 0, 0);
4240     return 0;
4241 }
4242 EOF
4243 if compile_prog "" "" ; then
4244   sync_file_range=yes
4245 fi
4246
4247 # check for linux/fiemap.h and FS_IOC_FIEMAP
4248 fiemap=no
4249 cat > $TMPC << EOF
4250 #include <sys/ioctl.h>
4251 #include <linux/fs.h>
4252 #include <linux/fiemap.h>
4253
4254 int main(void)
4255 {
4256     ioctl(0, FS_IOC_FIEMAP, 0);
4257     return 0;
4258 }
4259 EOF
4260 if compile_prog "" "" ; then
4261   fiemap=yes
4262 fi
4263
4264 # check for dup3
4265 dup3=no
4266 cat > $TMPC << EOF
4267 #include <unistd.h>
4268
4269 int main(void)
4270 {
4271     dup3(0, 0, 0);
4272     return 0;
4273 }
4274 EOF
4275 if compile_prog "" "" ; then
4276   dup3=yes
4277 fi
4278
4279 # check for ppoll support
4280 ppoll=no
4281 cat > $TMPC << EOF
4282 #include <poll.h>
4283
4284 int main(void)
4285 {
4286     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4287     ppoll(&pfd, 1, 0, 0);
4288     return 0;
4289 }
4290 EOF
4291 if compile_prog "" "" ; then
4292   ppoll=yes
4293 fi
4294
4295 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4296 prctl_pr_set_timerslack=no
4297 cat > $TMPC << EOF
4298 #include <sys/prctl.h>
4299
4300 int main(void)
4301 {
4302     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4303     return 0;
4304 }
4305 EOF
4306 if compile_prog "" "" ; then
4307   prctl_pr_set_timerslack=yes
4308 fi
4309
4310 # check for epoll support
4311 epoll=no
4312 cat > $TMPC << EOF
4313 #include <sys/epoll.h>
4314
4315 int main(void)
4316 {
4317     epoll_create(0);
4318     return 0;
4319 }
4320 EOF
4321 if compile_prog "" "" ; then
4322   epoll=yes
4323 fi
4324
4325 # epoll_create1 is a later addition
4326 # so we must check separately for its presence
4327 epoll_create1=no
4328 cat > $TMPC << EOF
4329 #include <sys/epoll.h>
4330
4331 int main(void)
4332 {
4333     /* Note that we use epoll_create1 as a value, not as
4334      * a function being called. This is necessary so that on
4335      * old SPARC glibc versions where the function was present in
4336      * the library but not declared in the header file we will
4337      * fail the configure check. (Otherwise we will get a compiler
4338      * warning but not an error, and will proceed to fail the
4339      * qemu compile where we compile with -Werror.)
4340      */
4341     return (int)(uintptr_t)&epoll_create1;
4342 }
4343 EOF
4344 if compile_prog "" "" ; then
4345   epoll_create1=yes
4346 fi
4347
4348 # check for sendfile support
4349 sendfile=no
4350 cat > $TMPC << EOF
4351 #include <sys/sendfile.h>
4352
4353 int main(void)
4354 {
4355     return sendfile(0, 0, 0, 0);
4356 }
4357 EOF
4358 if compile_prog "" "" ; then
4359   sendfile=yes
4360 fi
4361
4362 # check for timerfd support (glibc 2.8 and newer)
4363 timerfd=no
4364 cat > $TMPC << EOF
4365 #include <sys/timerfd.h>
4366
4367 int main(void)
4368 {
4369     return(timerfd_create(CLOCK_REALTIME, 0));
4370 }
4371 EOF
4372 if compile_prog "" "" ; then
4373   timerfd=yes
4374 fi
4375
4376 # check for setns and unshare support
4377 setns=no
4378 cat > $TMPC << EOF
4379 #include <sched.h>
4380
4381 int main(void)
4382 {
4383     int ret;
4384     ret = setns(0, 0);
4385     ret = unshare(0);
4386     return ret;
4387 }
4388 EOF
4389 if compile_prog "" "" ; then
4390   setns=yes
4391 fi
4392
4393 # clock_adjtime probe
4394 clock_adjtime=no
4395 cat > $TMPC <<EOF
4396 #include <time.h>
4397
4398 int main(void)
4399 {
4400     return clock_adjtime(0, 0);
4401 }
4402 EOF
4403 clock_adjtime=no
4404 if compile_prog "" "" ; then
4405   clock_adjtime=yes
4406 fi
4407
4408 # syncfs probe
4409 syncfs=no
4410 cat > $TMPC <<EOF
4411 #include <unistd.h>
4412
4413 int main(void)
4414 {
4415     return syncfs(0);
4416 }
4417 EOF
4418 syncfs=no
4419 if compile_prog "" "" ; then
4420   syncfs=yes
4421 fi
4422
4423 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4424 kcov=no
4425 if check_include sys/kcov.h ; then
4426     kcov=yes
4427 fi
4428
4429 # check for btrfs filesystem support (kernel must be 3.9+)
4430 btrfs=no
4431 if check_include linux/btrfs.h ; then
4432     btrfs=yes
4433 fi
4434
4435 # Search for bswap_32 function
4436 byteswap_h=no
4437 cat > $TMPC << EOF
4438 #include <byteswap.h>
4439 int main(void) { return bswap_32(0); }
4440 EOF
4441 if compile_prog "" "" ; then
4442   byteswap_h=yes
4443 fi
4444
4445 # Search for bswap32 function
4446 bswap_h=no
4447 cat > $TMPC << EOF
4448 #include <sys/endian.h>
4449 #include <sys/types.h>
4450 #include <machine/bswap.h>
4451 int main(void) { return bswap32(0); }
4452 EOF
4453 if compile_prog "" "" ; then
4454   bswap_h=yes
4455 fi
4456
4457 ##########################################
4458 # Do we have libiscsi >= 1.9.0
4459 if test "$libiscsi" != "no" ; then
4460   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4461     libiscsi="yes"
4462     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4463     libiscsi_libs=$($pkg_config --libs libiscsi)
4464   else
4465     if test "$libiscsi" = "yes" ; then
4466       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4467     fi
4468     libiscsi="no"
4469   fi
4470 fi
4471
4472 ##########################################
4473 # Do we need librt
4474 # uClibc provides 2 versions of clock_gettime(), one with realtime
4475 # support and one without. This means that the clock_gettime() don't
4476 # need -lrt. We still need it for timer_create() so we check for this
4477 # function in addition.
4478 cat > $TMPC <<EOF
4479 #include <signal.h>
4480 #include <time.h>
4481 int main(void) {
4482   timer_create(CLOCK_REALTIME, NULL, NULL);
4483   return clock_gettime(CLOCK_REALTIME, NULL);
4484 }
4485 EOF
4486
4487 if compile_prog "" "" ; then
4488   :
4489 # we need pthread for static linking. use previous pthread test result
4490 elif compile_prog "" "$pthread_lib -lrt" ; then
4491   LIBS="$LIBS -lrt"
4492 fi
4493
4494 # Check whether we have openpty() in either libc or libutil
4495 cat > $TMPC << EOF
4496 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4497 int main(void) { return openpty(0, 0, 0, 0, 0); }
4498 EOF
4499
4500 have_openpty="no"
4501 if compile_prog "" "" ; then
4502   have_openpty="yes"
4503 else
4504   if compile_prog "" "-lutil" ; then
4505     have_openpty="yes"
4506   fi
4507 fi
4508
4509 ##########################################
4510 # spice probe
4511 if test "$spice" != "no" ; then
4512   cat > $TMPC << EOF
4513 #include <spice.h>
4514 int main(void) { spice_server_new(); return 0; }
4515 EOF
4516   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4517   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4518   if $pkg_config --atleast-version=0.12.5 spice-server && \
4519      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4520      compile_prog "$spice_cflags" "$spice_libs" ; then
4521     spice="yes"
4522   else
4523     if test "$spice" = "yes" ; then
4524       feature_not_found "spice" \
4525           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4526     fi
4527     spice="no"
4528   fi
4529 fi
4530
4531 # check for smartcard support
4532 if test "$smartcard" != "no"; then
4533     if $pkg_config --atleast-version=2.5.1 libcacard; then
4534         libcacard_cflags=$($pkg_config --cflags libcacard)
4535         libcacard_libs=$($pkg_config --libs libcacard)
4536         smartcard="yes"
4537     else
4538         if test "$smartcard" = "yes"; then
4539             feature_not_found "smartcard" "Install libcacard devel"
4540         fi
4541         smartcard="no"
4542     fi
4543 fi
4544
4545 # check for libusb
4546 if test "$libusb" != "no" ; then
4547     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4548         libusb="yes"
4549         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4550         libusb_libs=$($pkg_config --libs libusb-1.0)
4551     else
4552         if test "$libusb" = "yes"; then
4553             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4554         fi
4555         libusb="no"
4556     fi
4557 fi
4558
4559 # check for usbredirparser for usb network redirection support
4560 if test "$usb_redir" != "no" ; then
4561     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4562         usb_redir="yes"
4563         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4564         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4565     else
4566         if test "$usb_redir" = "yes"; then
4567             feature_not_found "usb-redir" "Install usbredir devel"
4568         fi
4569         usb_redir="no"
4570     fi
4571 fi
4572
4573 ##########################################
4574 # check if we have VSS SDK headers for win
4575
4576 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4577         test "$vss_win32_sdk" != "no" ; then
4578   case "$vss_win32_sdk" in
4579     "")   vss_win32_include="-isystem $source_path" ;;
4580     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4581           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4582           vss_win32_include="-isystem $source_path/.sdk/vss"
4583           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4584           ;;
4585     *)    vss_win32_include="-isystem $vss_win32_sdk"
4586   esac
4587   cat > $TMPC << EOF
4588 #define __MIDL_user_allocate_free_DEFINED__
4589 #include <inc/win2003/vss.h>
4590 int main(void) { return VSS_CTX_BACKUP; }
4591 EOF
4592   if compile_prog "$vss_win32_include" "" ; then
4593     guest_agent_with_vss="yes"
4594     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4595     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4596     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4597   else
4598     if test "$vss_win32_sdk" != "" ; then
4599       echo "ERROR: Please download and install Microsoft VSS SDK:"
4600       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4601       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4602       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4603       echo "ERROR: The headers are extracted in the directory \`inc'."
4604       feature_not_found "VSS support"
4605     fi
4606     guest_agent_with_vss="no"
4607   fi
4608 fi
4609
4610 ##########################################
4611 # lookup Windows platform SDK (if not specified)
4612 # The SDK is needed only to build .tlb (type library) file of guest agent
4613 # VSS provider from the source. It is usually unnecessary because the
4614 # pre-compiled .tlb file is included.
4615
4616 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4617         test "$guest_agent_with_vss" = "yes" ; then
4618   if test -z "$win_sdk"; then
4619     programfiles="$PROGRAMFILES"
4620     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4621     if test -n "$programfiles"; then
4622       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4623     else
4624       feature_not_found "Windows SDK"
4625     fi
4626   elif test "$win_sdk" = "no"; then
4627     win_sdk=""
4628   fi
4629 fi
4630
4631 ##########################################
4632 # check if mingw environment provides a recent ntddscsi.h
4633 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4634   cat > $TMPC << EOF
4635 #include <windows.h>
4636 #include <ntddscsi.h>
4637 int main(void) {
4638 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4639 #error Missing required ioctl definitions
4640 #endif
4641   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4642   return addr.Lun;
4643 }
4644 EOF
4645   if compile_prog "" "" ; then
4646     guest_agent_ntddscsi=yes
4647     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4648   fi
4649 fi
4650
4651 ##########################################
4652 # virgl renderer probe
4653
4654 if test "$virglrenderer" != "no" ; then
4655   cat > $TMPC << EOF
4656 #include <virglrenderer.h>
4657 int main(void) { virgl_renderer_poll(); return 0; }
4658 EOF
4659   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4660   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4661   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4662   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4663      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4664     virglrenderer="yes"
4665   else
4666     if test "$virglrenderer" = "yes" ; then
4667       feature_not_found "virglrenderer"
4668     fi
4669     virglrenderer="no"
4670   fi
4671 fi
4672
4673 ##########################################
4674 # capstone
4675
4676 case "$capstone" in
4677   auto | enabled | internal)
4678     # Simpler to always update submodule, even if not needed.
4679     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
4680       git_submodules="${git_submodules} capstone"
4681     fi
4682     ;;
4683 esac
4684
4685 ##########################################
4686 # check if we have fdatasync
4687
4688 fdatasync=no
4689 cat > $TMPC << EOF
4690 #include <unistd.h>
4691 int main(void) {
4692 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4693 return fdatasync(0);
4694 #else
4695 #error Not supported
4696 #endif
4697 }
4698 EOF
4699 if compile_prog "" "" ; then
4700     fdatasync=yes
4701 fi
4702
4703 ##########################################
4704 # check if we have madvise
4705
4706 madvise=no
4707 cat > $TMPC << EOF
4708 #include <sys/types.h>
4709 #include <sys/mman.h>
4710 #include <stddef.h>
4711 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4712 EOF
4713 if compile_prog "" "" ; then
4714     madvise=yes
4715 fi
4716
4717 ##########################################
4718 # check if we have posix_madvise
4719
4720 posix_madvise=no
4721 cat > $TMPC << EOF
4722 #include <sys/mman.h>
4723 #include <stddef.h>
4724 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4725 EOF
4726 if compile_prog "" "" ; then
4727     posix_madvise=yes
4728 fi
4729
4730 ##########################################
4731 # check if we have posix_memalign()
4732
4733 posix_memalign=no
4734 cat > $TMPC << EOF
4735 #include <stdlib.h>
4736 int main(void) {
4737     void *p;
4738     return posix_memalign(&p, 8, 8);
4739 }
4740 EOF
4741 if compile_prog "" "" ; then
4742     posix_memalign=yes
4743 fi
4744
4745 ##########################################
4746 # check if we have posix_syslog
4747
4748 posix_syslog=no
4749 cat > $TMPC << EOF
4750 #include <syslog.h>
4751 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4752 EOF
4753 if compile_prog "" "" ; then
4754     posix_syslog=yes
4755 fi
4756
4757 ##########################################
4758 # check if we have sem_timedwait
4759
4760 sem_timedwait=no
4761 cat > $TMPC << EOF
4762 #include <semaphore.h>
4763 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4764 EOF
4765 if compile_prog "" "" ; then
4766     sem_timedwait=yes
4767 fi
4768
4769 ##########################################
4770 # check if we have strchrnul
4771
4772 strchrnul=no
4773 cat > $TMPC << EOF
4774 #include <string.h>
4775 int main(void);
4776 // Use a haystack that the compiler shouldn't be able to constant fold
4777 char *haystack = (char*)&main;
4778 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4779 EOF
4780 if compile_prog "" "" ; then
4781     strchrnul=yes
4782 fi
4783
4784 #########################################
4785 # check if we have st_atim
4786
4787 st_atim=no
4788 cat > $TMPC << EOF
4789 #include <sys/stat.h>
4790 #include <stddef.h>
4791 int main(void) { return offsetof(struct stat, st_atim); }
4792 EOF
4793 if compile_prog "" "" ; then
4794     st_atim=yes
4795 fi
4796
4797 ##########################################
4798 # check if trace backend exists
4799
4800 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4801 if test "$?" -ne 0 ; then
4802   error_exit "invalid trace backends" \
4803       "Please choose supported trace backends."
4804 fi
4805
4806 ##########################################
4807 # For 'ust' backend, test if ust headers are present
4808 if have_backend "ust"; then
4809   cat > $TMPC << EOF
4810 #include <lttng/tracepoint.h>
4811 int main(void) { return 0; }
4812 EOF
4813   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4814     if $pkg_config lttng-ust --exists; then
4815       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4816     else
4817       lttng_ust_libs="-llttng-ust -ldl"
4818     fi
4819     if $pkg_config liburcu-bp --exists; then
4820       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4821     else
4822       urcu_bp_libs="-lurcu-bp"
4823     fi
4824   else
4825     error_exit "Trace backend 'ust' missing lttng-ust header files"
4826   fi
4827 fi
4828
4829 ##########################################
4830 # For 'dtrace' backend, test if 'dtrace' command is present
4831 if have_backend "dtrace"; then
4832   if ! has 'dtrace' ; then
4833     error_exit "dtrace command is not found in PATH $PATH"
4834   fi
4835   trace_backend_stap="no"
4836   if has 'stap' ; then
4837     trace_backend_stap="yes"
4838
4839     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4840     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4841     # instead. QEMU --enable-modules depends on this because the SystemTap
4842     # semaphores are linked into the main binary and not the module's shared
4843     # object.
4844     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4845   fi
4846 fi
4847
4848 ##########################################
4849 # check and set a backend for coroutine
4850
4851 # We prefer ucontext, but it's not always possible. The fallback
4852 # is sigcontext. On Windows the only valid backend is the Windows
4853 # specific one.
4854
4855 ucontext_works=no
4856 if test "$darwin" != "yes"; then
4857   cat > $TMPC << EOF
4858 #include <ucontext.h>
4859 #ifdef __stub_makecontext
4860 #error Ignoring glibc stub makecontext which will always fail
4861 #endif
4862 int main(void) { makecontext(0, 0, 0); return 0; }
4863 EOF
4864   if compile_prog "" "" ; then
4865     ucontext_works=yes
4866   fi
4867 fi
4868
4869 if test "$coroutine" = ""; then
4870   if test "$mingw32" = "yes"; then
4871     coroutine=win32
4872   elif test "$ucontext_works" = "yes"; then
4873     coroutine=ucontext
4874   else
4875     coroutine=sigaltstack
4876   fi
4877 else
4878   case $coroutine in
4879   windows)
4880     if test "$mingw32" != "yes"; then
4881       error_exit "'windows' coroutine backend only valid for Windows"
4882     fi
4883     # Unfortunately the user visible backend name doesn't match the
4884     # coroutine-*.c filename for this case, so we have to adjust it here.
4885     coroutine=win32
4886     ;;
4887   ucontext)
4888     if test "$ucontext_works" != "yes"; then
4889       feature_not_found "ucontext"
4890     fi
4891     ;;
4892   sigaltstack)
4893     if test "$mingw32" = "yes"; then
4894       error_exit "only the 'windows' coroutine backend is valid for Windows"
4895     fi
4896     ;;
4897   *)
4898     error_exit "unknown coroutine backend $coroutine"
4899     ;;
4900   esac
4901 fi
4902
4903 if test "$coroutine_pool" = ""; then
4904   coroutine_pool=yes
4905 fi
4906
4907 if test "$debug_stack_usage" = "yes"; then
4908   if test "$coroutine_pool" = "yes"; then
4909     echo "WARN: disabling coroutine pool for stack usage debugging"
4910     coroutine_pool=no
4911   fi
4912 fi
4913
4914 ##################################################
4915 # SafeStack
4916
4917
4918 if test "$safe_stack" = "yes"; then
4919 cat > $TMPC << EOF
4920 int main(int argc, char *argv[])
4921 {
4922 #if ! __has_feature(safe_stack)
4923 #error SafeStack Disabled
4924 #endif
4925     return 0;
4926 }
4927 EOF
4928   flag="-fsanitize=safe-stack"
4929   # Check that safe-stack is supported and enabled.
4930   if compile_prog "-Werror $flag" "$flag"; then
4931     # Flag needed both at compilation and at linking
4932     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4933     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4934   else
4935     error_exit "SafeStack not supported by your compiler"
4936   fi
4937   if test "$coroutine" != "ucontext"; then
4938     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4939   fi
4940 else
4941 cat > $TMPC << EOF
4942 int main(int argc, char *argv[])
4943 {
4944 #if defined(__has_feature)
4945 #if __has_feature(safe_stack)
4946 #error SafeStack Enabled
4947 #endif
4948 #endif
4949     return 0;
4950 }
4951 EOF
4952 if test "$safe_stack" = "no"; then
4953   # Make sure that safe-stack is disabled
4954   if ! compile_prog "-Werror" ""; then
4955     # SafeStack was already enabled, try to explicitly remove the feature
4956     flag="-fno-sanitize=safe-stack"
4957     if ! compile_prog "-Werror $flag" "$flag"; then
4958       error_exit "Configure cannot disable SafeStack"
4959     fi
4960     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4961     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4962   fi
4963 else # "$safe_stack" = ""
4964   # Set safe_stack to yes or no based on pre-existing flags
4965   if compile_prog "-Werror" ""; then
4966     safe_stack="no"
4967   else
4968     safe_stack="yes"
4969     if test "$coroutine" != "ucontext"; then
4970       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4971     fi
4972   fi
4973 fi
4974 fi
4975
4976 ##########################################
4977 # check if we have open_by_handle_at
4978
4979 open_by_handle_at=no
4980 cat > $TMPC << EOF
4981 #include <fcntl.h>
4982 #if !defined(AT_EMPTY_PATH)
4983 # error missing definition
4984 #else
4985 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4986 #endif
4987 EOF
4988 if compile_prog "" "" ; then
4989     open_by_handle_at=yes
4990 fi
4991
4992 ########################################
4993 # check if we have linux/magic.h
4994
4995 linux_magic_h=no
4996 cat > $TMPC << EOF
4997 #include <linux/magic.h>
4998 int main(void) {
4999   return 0;
5000 }
5001 EOF
5002 if compile_prog "" "" ; then
5003     linux_magic_h=yes
5004 fi
5005
5006 ########################################
5007 # check if we have valgrind/valgrind.h
5008
5009 valgrind_h=no
5010 cat > $TMPC << EOF
5011 #include <valgrind/valgrind.h>
5012 int main(void) {
5013   return 0;
5014 }
5015 EOF
5016 if compile_prog "" "" ; then
5017     valgrind_h=yes
5018 fi
5019
5020 ########################################
5021 # check if environ is declared
5022
5023 has_environ=no
5024 cat > $TMPC << EOF
5025 #include <unistd.h>
5026 int main(void) {
5027     environ = 0;
5028     return 0;
5029 }
5030 EOF
5031 if compile_prog "" "" ; then
5032     has_environ=yes
5033 fi
5034
5035 ########################################
5036 # check if cpuid.h is usable.
5037
5038 cat > $TMPC << EOF
5039 #include <cpuid.h>
5040 int main(void) {
5041     unsigned a, b, c, d;
5042     int max = __get_cpuid_max(0, 0);
5043
5044     if (max >= 1) {
5045         __cpuid(1, a, b, c, d);
5046     }
5047
5048     if (max >= 7) {
5049         __cpuid_count(7, 0, a, b, c, d);
5050     }
5051
5052     return 0;
5053 }
5054 EOF
5055 if compile_prog "" "" ; then
5056     cpuid_h=yes
5057 fi
5058
5059 ##########################################
5060 # avx2 optimization requirement check
5061 #
5062 # There is no point enabling this if cpuid.h is not usable,
5063 # since we won't be able to select the new routines.
5064
5065 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5066   cat > $TMPC << EOF
5067 #pragma GCC push_options
5068 #pragma GCC target("avx2")
5069 #include <cpuid.h>
5070 #include <immintrin.h>
5071 static int bar(void *a) {
5072     __m256i x = *(__m256i *)a;
5073     return _mm256_testz_si256(x, x);
5074 }
5075 int main(int argc, char *argv[]) { return bar(argv[0]); }
5076 EOF
5077   if compile_object "" ; then
5078     avx2_opt="yes"
5079   else
5080     avx2_opt="no"
5081   fi
5082 fi
5083
5084 ##########################################
5085 # avx512f optimization requirement check
5086 #
5087 # There is no point enabling this if cpuid.h is not usable,
5088 # since we won't be able to select the new routines.
5089 # by default, it is turned off.
5090 # if user explicitly want to enable it, check environment
5091
5092 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5093   cat > $TMPC << EOF
5094 #pragma GCC push_options
5095 #pragma GCC target("avx512f")
5096 #include <cpuid.h>
5097 #include <immintrin.h>
5098 static int bar(void *a) {
5099     __m512i x = *(__m512i *)a;
5100     return _mm512_test_epi64_mask(x, x);
5101 }
5102 int main(int argc, char *argv[])
5103 {
5104         return bar(argv[0]);
5105 }
5106 EOF
5107   if ! compile_object "" ; then
5108     avx512f_opt="no"
5109   fi
5110 else
5111   avx512f_opt="no"
5112 fi
5113
5114 ########################################
5115 # check if __[u]int128_t is usable.
5116
5117 int128=no
5118 cat > $TMPC << EOF
5119 __int128_t a;
5120 __uint128_t b;
5121 int main (void) {
5122   a = a + b;
5123   b = a * b;
5124   a = a * a;
5125   return 0;
5126 }
5127 EOF
5128 if compile_prog "" "" ; then
5129     int128=yes
5130 fi
5131
5132 #########################################
5133 # See if 128-bit atomic operations are supported.
5134
5135 atomic128=no
5136 if test "$int128" = "yes"; then
5137   cat > $TMPC << EOF
5138 int main(void)
5139 {
5140   unsigned __int128 x = 0, y = 0;
5141   y = __atomic_load_16(&x, 0);
5142   __atomic_store_16(&x, y, 0);
5143   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5144   return 0;
5145 }
5146 EOF
5147   if compile_prog "" "" ; then
5148     atomic128=yes
5149   fi
5150 fi
5151
5152 cmpxchg128=no
5153 if test "$int128" = yes && test "$atomic128" = no; then
5154   cat > $TMPC << EOF
5155 int main(void)
5156 {
5157   unsigned __int128 x = 0, y = 0;
5158   __sync_val_compare_and_swap_16(&x, y, x);
5159   return 0;
5160 }
5161 EOF
5162   if compile_prog "" "" ; then
5163     cmpxchg128=yes
5164   fi
5165 fi
5166
5167 #########################################
5168 # See if 64-bit atomic operations are supported.
5169 # Note that without __atomic builtins, we can only
5170 # assume atomic loads/stores max at pointer size.
5171
5172 cat > $TMPC << EOF
5173 #include <stdint.h>
5174 int main(void)
5175 {
5176   uint64_t x = 0, y = 0;
5177 #ifdef __ATOMIC_RELAXED
5178   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5179   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5180   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5181   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5182   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5183 #else
5184   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5185   __sync_lock_test_and_set(&x, y);
5186   __sync_val_compare_and_swap(&x, y, 0);
5187   __sync_fetch_and_add(&x, y);
5188 #endif
5189   return 0;
5190 }
5191 EOF
5192 if compile_prog "" "" ; then
5193   atomic64=yes
5194 fi
5195
5196 #########################################
5197 # See if --dynamic-list is supported by the linker
5198 ld_dynamic_list="no"
5199 if test "$static" = "no" ; then
5200     cat > $TMPTXT <<EOF
5201 {
5202   foo;
5203 };
5204 EOF
5205
5206     cat > $TMPC <<EOF
5207 #include <stdio.h>
5208 void foo(void);
5209
5210 void foo(void)
5211 {
5212   printf("foo\n");
5213 }
5214
5215 int main(void)
5216 {
5217   foo();
5218   return 0;
5219 }
5220 EOF
5221
5222     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5223         ld_dynamic_list="yes"
5224     fi
5225 fi
5226
5227 #########################################
5228 # See if -exported_symbols_list is supported by the linker
5229
5230 ld_exported_symbols_list="no"
5231 if test "$static" = "no" ; then
5232     cat > $TMPTXT <<EOF
5233   _foo
5234 EOF
5235
5236     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5237         ld_exported_symbols_list="yes"
5238     fi
5239 fi
5240
5241 if  test "$plugins" = "yes" &&
5242     test "$ld_dynamic_list" = "no" &&
5243     test "$ld_exported_symbols_list" = "no" ; then
5244   error_exit \
5245       "Plugin support requires dynamic linking and specifying a set of symbols " \
5246       "that are exported to plugins. Unfortunately your linker doesn't " \
5247       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5248       "for this purpose. You can't build with --static."
5249 fi
5250
5251 ########################################
5252 # See if __attribute__((alias)) is supported.
5253 # This false for Xcode 9, but has been remedied for Xcode 10.
5254 # Unfortunately, travis uses Xcode 9 by default.
5255
5256 attralias=no
5257 cat > $TMPC << EOF
5258 int x = 1;
5259 extern const int y __attribute__((alias("x")));
5260 int main(void) { return 0; }
5261 EOF
5262 if compile_prog "" "" ; then
5263     attralias=yes
5264 fi
5265
5266 ########################################
5267 # check if getauxval is available.
5268
5269 getauxval=no
5270 cat > $TMPC << EOF
5271 #include <sys/auxv.h>
5272 int main(void) {
5273   return getauxval(AT_HWCAP) == 0;
5274 }
5275 EOF
5276 if compile_prog "" "" ; then
5277     getauxval=yes
5278 fi
5279
5280 ########################################
5281 # check if ccache is interfering with
5282 # semantic analysis of macros
5283
5284 unset CCACHE_CPP2
5285 ccache_cpp2=no
5286 cat > $TMPC << EOF
5287 static const int Z = 1;
5288 #define fn() ({ Z; })
5289 #define TAUT(X) ((X) == Z)
5290 #define PAREN(X, Y) (X == Y)
5291 #define ID(X) (X)
5292 int main(int argc, char *argv[])
5293 {
5294     int x = 0, y = 0;
5295     x = ID(x);
5296     x = fn();
5297     fn();
5298     if (PAREN(x, y)) return 0;
5299     if (TAUT(Z)) return 0;
5300     return 0;
5301 }
5302 EOF
5303
5304 if ! compile_object "-Werror"; then
5305     ccache_cpp2=yes
5306 fi
5307
5308 #################################################
5309 # clang does not support glibc + FORTIFY_SOURCE.
5310
5311 if test "$fortify_source" != "no"; then
5312   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5313     fortify_source="no";
5314   elif test -n "$cxx" && has $cxx &&
5315        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5316     fortify_source="no";
5317   else
5318     fortify_source="yes"
5319   fi
5320 fi
5321
5322 ###############################################
5323 # Check if copy_file_range is provided by glibc
5324 have_copy_file_range=no
5325 cat > $TMPC << EOF
5326 #include <unistd.h>
5327 int main(void) {
5328   copy_file_range(0, NULL, 0, NULL, 0, 0);
5329   return 0;
5330 }
5331 EOF
5332 if compile_prog "" "" ; then
5333     have_copy_file_range=yes
5334 fi
5335
5336 ##########################################
5337 # check if struct fsxattr is available via linux/fs.h
5338
5339 have_fsxattr=no
5340 cat > $TMPC << EOF
5341 #include <linux/fs.h>
5342 struct fsxattr foo;
5343 int main(void) {
5344   return 0;
5345 }
5346 EOF
5347 if compile_prog "" "" ; then
5348     have_fsxattr=yes
5349 fi
5350
5351 ##########################################
5352 # check for usable membarrier system call
5353 if test "$membarrier" = "yes"; then
5354     have_membarrier=no
5355     if test "$mingw32" = "yes" ; then
5356         have_membarrier=yes
5357     elif test "$linux" = "yes" ; then
5358         cat > $TMPC << EOF
5359     #include <linux/membarrier.h>
5360     #include <sys/syscall.h>
5361     #include <unistd.h>
5362     #include <stdlib.h>
5363     int main(void) {
5364         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5365         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5366         exit(0);
5367     }
5368 EOF
5369         if compile_prog "" "" ; then
5370             have_membarrier=yes
5371         fi
5372     fi
5373     if test "$have_membarrier" = "no"; then
5374       feature_not_found "membarrier" "membarrier system call not available"
5375     fi
5376 else
5377     # Do not enable it by default even for Mingw32, because it doesn't
5378     # work on Wine.
5379     membarrier=no
5380 fi
5381
5382 ##########################################
5383 # check if rtnetlink.h exists and is useful
5384 have_rtnetlink=no
5385 cat > $TMPC << EOF
5386 #include <linux/rtnetlink.h>
5387 int main(void) {
5388   return IFLA_PROTO_DOWN;
5389 }
5390 EOF
5391 if compile_prog "" "" ; then
5392     have_rtnetlink=yes
5393 fi
5394
5395 ##########################################
5396 # check for usable AF_VSOCK environment
5397 have_af_vsock=no
5398 cat > $TMPC << EOF
5399 #include <errno.h>
5400 #include <sys/types.h>
5401 #include <sys/socket.h>
5402 #if !defined(AF_VSOCK)
5403 # error missing AF_VSOCK flag
5404 #endif
5405 #include <linux/vm_sockets.h>
5406 int main(void) {
5407     int sock, ret;
5408     struct sockaddr_vm svm;
5409     socklen_t len = sizeof(svm);
5410     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5411     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5412     if ((ret == -1) && (errno == ENOTCONN)) {
5413         return 0;
5414     }
5415     return -1;
5416 }
5417 EOF
5418 if compile_prog "" "" ; then
5419     have_af_vsock=yes
5420 fi
5421
5422 ##########################################
5423 # check for usable AF_ALG environment
5424 have_afalg=no
5425 cat > $TMPC << EOF
5426 #include <errno.h>
5427 #include <sys/types.h>
5428 #include <sys/socket.h>
5429 #include <linux/if_alg.h>
5430 int main(void) {
5431     int sock;
5432     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5433     return sock;
5434 }
5435 EOF
5436 if compile_prog "" "" ; then
5437     have_afalg=yes
5438 fi
5439 if test "$crypto_afalg" = "yes"
5440 then
5441     if test "$have_afalg" != "yes"
5442     then
5443         error_exit "AF_ALG requested but could not be detected"
5444     fi
5445 fi
5446
5447
5448 #################################################
5449 # check for sysmacros.h
5450
5451 have_sysmacros=no
5452 cat > $TMPC << EOF
5453 #include <sys/sysmacros.h>
5454 int main(void) {
5455     return makedev(0, 0);
5456 }
5457 EOF
5458 if compile_prog "" "" ; then
5459     have_sysmacros=yes
5460 fi
5461
5462 ##########################################
5463 # check for _Static_assert()
5464
5465 have_static_assert=no
5466 cat > $TMPC << EOF
5467 _Static_assert(1, "success");
5468 int main(void) {
5469     return 0;
5470 }
5471 EOF
5472 if compile_prog "" "" ; then
5473     have_static_assert=yes
5474 fi
5475
5476 ##########################################
5477 # check for utmpx.h, it is missing e.g. on OpenBSD
5478
5479 have_utmpx=no
5480 cat > $TMPC << EOF
5481 #include <utmpx.h>
5482 struct utmpx user_info;
5483 int main(void) {
5484     return 0;
5485 }
5486 EOF
5487 if compile_prog "" "" ; then
5488     have_utmpx=yes
5489 fi
5490
5491 ##########################################
5492 # check for getrandom()
5493
5494 have_getrandom=no
5495 cat > $TMPC << EOF
5496 #include <sys/random.h>
5497 int main(void) {
5498     return getrandom(0, 0, GRND_NONBLOCK);
5499 }
5500 EOF
5501 if compile_prog "" "" ; then
5502     have_getrandom=yes
5503 fi
5504
5505 ##########################################
5506 # checks for sanitizers
5507
5508 have_asan=no
5509 have_ubsan=no
5510 have_asan_iface_h=no
5511 have_asan_iface_fiber=no
5512
5513 if test "$sanitizers" = "yes" ; then
5514   write_c_skeleton
5515   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5516       have_asan=yes
5517   fi
5518
5519   # we could use a simple skeleton for flags checks, but this also
5520   # detect the static linking issue of ubsan, see also:
5521   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5522   cat > $TMPC << EOF
5523 #include <stdlib.h>
5524 int main(void) {
5525     void *tmp = malloc(10);
5526     if (tmp != NULL) {
5527         return *(int *)(tmp + 2);
5528     }
5529     return 1;
5530 }
5531 EOF
5532   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5533       have_ubsan=yes
5534   fi
5535
5536   if check_include "sanitizer/asan_interface.h" ; then
5537       have_asan_iface_h=yes
5538   fi
5539
5540   cat > $TMPC << EOF
5541 #include <sanitizer/asan_interface.h>
5542 int main(void) {
5543   __sanitizer_start_switch_fiber(0, 0, 0);
5544   return 0;
5545 }
5546 EOF
5547   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5548       have_asan_iface_fiber=yes
5549   fi
5550 fi
5551
5552 ##########################################
5553 # checks for fuzzer
5554 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5555   write_c_fuzzer_skeleton
5556   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5557     have_fuzzer=yes
5558   else
5559     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5560     exit 1
5561   fi
5562 fi
5563
5564 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5565 # keep it separate until that is not the case.
5566 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5567   error_exit "TSAN is not supported with other sanitiziers."
5568 fi
5569 have_tsan=no
5570 have_tsan_iface_fiber=no
5571 if test "$tsan" = "yes" ; then
5572   write_c_skeleton
5573   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5574       have_tsan=yes
5575   fi
5576   cat > $TMPC << EOF
5577 #include <sanitizer/tsan_interface.h>
5578 int main(void) {
5579   __tsan_create_fiber(0);
5580   return 0;
5581 }
5582 EOF
5583   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5584       have_tsan_iface_fiber=yes
5585   fi
5586 fi
5587
5588 ##########################################
5589 # check for libpmem
5590
5591 if test "$libpmem" != "no"; then
5592         if $pkg_config --exists "libpmem"; then
5593                 libpmem="yes"
5594                 libpmem_libs=$($pkg_config --libs libpmem)
5595                 libpmem_cflags=$($pkg_config --cflags libpmem)
5596         else
5597                 if test "$libpmem" = "yes" ; then
5598                         feature_not_found "libpmem" "Install nvml or pmdk"
5599                 fi
5600                 libpmem="no"
5601         fi
5602 fi
5603
5604 ##########################################
5605 # check for libdaxctl
5606
5607 if test "$libdaxctl" != "no"; then
5608         if $pkg_config --atleast-version=57 "libdaxctl"; then
5609                 libdaxctl="yes"
5610                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5611                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5612         else
5613                 if test "$libdaxctl" = "yes" ; then
5614                         feature_not_found "libdaxctl" "Install libdaxctl"
5615                 fi
5616                 libdaxctl="no"
5617         fi
5618 fi
5619
5620 ##########################################
5621 # check for slirp
5622
5623 case "$slirp" in
5624   auto | enabled | internal)
5625     # Simpler to always update submodule, even if not needed.
5626     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5627       git_submodules="${git_submodules} slirp"
5628     fi
5629     ;;
5630 esac
5631
5632 ##########################################
5633 # check for usable __NR_keyctl syscall
5634
5635 if test "$linux" = "yes" ; then
5636
5637     have_keyring=no
5638     cat > $TMPC << EOF
5639 #include <errno.h>
5640 #include <asm/unistd.h>
5641 #include <linux/keyctl.h>
5642 #include <unistd.h>
5643 int main(void) {
5644     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5645 }
5646 EOF
5647     if compile_prog "" "" ; then
5648         have_keyring=yes
5649     fi
5650 fi
5651 if test "$secret_keyring" != "no"
5652 then
5653     if test "$have_keyring" = "yes"
5654     then
5655         secret_keyring=yes
5656     else
5657         if test "$secret_keyring" = "yes"
5658         then
5659             error_exit "syscall __NR_keyctl requested, \
5660 but not implemented on your system"
5661         else
5662             secret_keyring=no
5663         fi
5664     fi
5665 fi
5666
5667 ##########################################
5668 # End of CC checks
5669 # After here, no more $cc or $ld runs
5670
5671 write_c_skeleton
5672
5673 if test "$gcov" = "yes" ; then
5674   :
5675 elif test "$fortify_source" = "yes" ; then
5676   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5677   debug=no
5678 fi
5679
5680 case "$ARCH" in
5681 alpha)
5682   # Ensure there's only a single GP
5683   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5684 ;;
5685 esac
5686
5687 if test "$gprof" = "yes" ; then
5688   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5689   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5690 fi
5691
5692 if test "$have_asan" = "yes"; then
5693   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5694   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5695   if test "$have_asan_iface_h" = "no" ; then
5696       echo "ASAN build enabled, but ASAN header missing." \
5697            "Without code annotation, the report may be inferior."
5698   elif test "$have_asan_iface_fiber" = "no" ; then
5699       echo "ASAN build enabled, but ASAN header is too old." \
5700            "Without code annotation, the report may be inferior."
5701   fi
5702 fi
5703 if test "$have_tsan" = "yes" ; then
5704   if test "$have_tsan_iface_fiber" = "yes" ; then
5705     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5706     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5707   else
5708     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5709   fi
5710 elif test "$tsan" = "yes" ; then
5711   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5712 fi
5713 if test "$have_ubsan" = "yes"; then
5714   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5715   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5716 fi
5717
5718 ##########################################
5719 # Do we have libnfs
5720 if test "$libnfs" != "no" ; then
5721   if $pkg_config --atleast-version=1.9.3 libnfs; then
5722     libnfs="yes"
5723     libnfs_libs=$($pkg_config --libs libnfs)
5724   else
5725     if test "$libnfs" = "yes" ; then
5726       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
5727     fi
5728     libnfs="no"
5729   fi
5730 fi
5731
5732 ##########################################
5733
5734 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5735 if test "$solaris" = "no" && test "$tsan" = "no"; then
5736     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5737         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5738     fi
5739 fi
5740
5741 # Use ASLR, no-SEH and DEP if available
5742 if test "$mingw32" = "yes" ; then
5743     flags="--no-seh --nxcompat"
5744
5745     # Disable ASLR for debug builds to allow debugging with gdb
5746     if test "$debug" = "no" ; then
5747         flags="--dynamicbase $flags"
5748     fi
5749
5750     for flag in $flags; do
5751         if ld_has $flag ; then
5752             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5753         fi
5754     done
5755 fi
5756
5757 # We can only support ivshmem if we have eventfd
5758 if [ "$eventfd" = "yes" ]; then
5759   ivshmem=yes
5760 fi
5761
5762 if test "$softmmu" = yes ; then
5763   if test "$linux" = yes; then
5764     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
5765       virtfs=yes
5766     else
5767       if test "$virtfs" = yes; then
5768         error_exit "VirtFS requires libcap-ng devel and libattr devel"
5769       fi
5770       virtfs=no
5771     fi
5772   else
5773     if test "$virtfs" = yes; then
5774       error_exit "VirtFS is supported only on Linux"
5775     fi
5776     virtfs=no
5777   fi
5778 fi
5779
5780 # Probe for guest agent support/options
5781
5782 if [ "$guest_agent" != "no" ]; then
5783   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5784       guest_agent=no
5785   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5786       guest_agent=yes
5787   elif [ "$guest_agent" != yes ]; then
5788       guest_agent=no
5789   else
5790       error_exit "Guest agent is not supported on this platform"
5791   fi
5792 fi
5793
5794 # Guest agent Window MSI  package
5795
5796 if test "$guest_agent" != yes; then
5797   if test "$guest_agent_msi" = yes; then
5798     error_exit "MSI guest agent package requires guest agent enabled"
5799   fi
5800   guest_agent_msi=no
5801 elif test "$mingw32" != "yes"; then
5802   if test "$guest_agent_msi" = "yes"; then
5803     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
5804   fi
5805   guest_agent_msi=no
5806 elif ! has wixl; then
5807   if test "$guest_agent_msi" = "yes"; then
5808     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
5809   fi
5810   guest_agent_msi=no
5811 else
5812   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
5813   # disabled explicitly
5814   if test "$guest_agent_msi" != "no"; then
5815     guest_agent_msi=yes
5816   fi
5817 fi
5818
5819 if test "$guest_agent_msi" = "yes"; then
5820   if test "$guest_agent_with_vss" = "yes"; then
5821     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
5822   fi
5823
5824   if test "$QEMU_GA_MANUFACTURER" = ""; then
5825     QEMU_GA_MANUFACTURER=QEMU
5826   fi
5827
5828   if test "$QEMU_GA_DISTRO" = ""; then
5829     QEMU_GA_DISTRO=Linux
5830   fi
5831
5832   if test "$QEMU_GA_VERSION" = ""; then
5833       QEMU_GA_VERSION=$(cat $source_path/VERSION)
5834   fi
5835
5836   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
5837
5838   case "$cpu" in
5839   x86_64)
5840     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
5841     ;;
5842   i386)
5843     QEMU_GA_MSI_ARCH="-D Arch=32"
5844     ;;
5845   *)
5846     error_exit "CPU $cpu not supported for building installation package"
5847     ;;
5848   esac
5849 fi
5850
5851 # Mac OS X ships with a broken assembler
5852 roms=
5853 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5854         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5855         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5856     # Different host OS linkers have different ideas about the name of the ELF
5857     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5858     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5859     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5860         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5861             ld_i386_emulation="$emu"
5862             roms="optionrom"
5863             break
5864         fi
5865     done
5866 fi
5867
5868 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5869 if test "$cpu" = "s390x" ; then
5870   write_c_skeleton
5871   if compile_prog "-march=z900" ""; then
5872     roms="$roms s390-ccw"
5873     # SLOF is required for building the s390-ccw firmware on s390x,
5874     # since it is using the libnet code from SLOF for network booting.
5875     if test -e "${source_path}/.git" ; then
5876       git_submodules="${git_submodules} roms/SLOF"
5877     fi
5878   fi
5879 fi
5880
5881 # Check that the C++ compiler exists and works with the C compiler.
5882 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5883 if has $cxx; then
5884     cat > $TMPC <<EOF
5885 int c_function(void);
5886 int main(void) { return c_function(); }
5887 EOF
5888
5889     compile_object
5890
5891     cat > $TMPCXX <<EOF
5892 extern "C" {
5893    int c_function(void);
5894 }
5895 int c_function(void) { return 42; }
5896 EOF
5897
5898     update_cxxflags
5899
5900     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5901         # C++ compiler $cxx works ok with C compiler $cc
5902         :
5903     else
5904         echo "C++ compiler $cxx does not work with C compiler $cc"
5905         echo "Disabling C++ specific optional code"
5906         cxx=
5907     fi
5908 else
5909     echo "No C++ compiler available; disabling C++ specific optional code"
5910     cxx=
5911 fi
5912
5913 if test $git_update = 'yes' ; then
5914     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
5915 fi
5916
5917 config_host_mak="config-host.mak"
5918
5919 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5920 echo >> $config_host_mak
5921
5922 echo all: >> $config_host_mak
5923 echo "GIT=$git" >> $config_host_mak
5924 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5925 echo "GIT_UPDATE=$git_update" >> $config_host_mak
5926
5927 echo "ARCH=$ARCH" >> $config_host_mak
5928
5929 if test "$default_devices" = "yes" ; then
5930   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
5931 else
5932   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
5933 fi
5934 if test "$debug_tcg" = "yes" ; then
5935   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5936 fi
5937 if test "$strip_opt" = "yes" ; then
5938   echo "STRIP=${strip}" >> $config_host_mak
5939 fi
5940 if test "$bigendian" = "yes" ; then
5941   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5942 fi
5943 if test "$mingw32" = "yes" ; then
5944   echo "CONFIG_WIN32=y" >> $config_host_mak
5945   rc_version=$(cat $source_path/VERSION)
5946   version_major=${rc_version%%.*}
5947   rc_version=${rc_version#*.}
5948   version_minor=${rc_version%%.*}
5949   rc_version=${rc_version#*.}
5950   version_subminor=${rc_version%%.*}
5951   version_micro=0
5952   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5953   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5954   if test "$guest_agent_with_vss" = "yes" ; then
5955     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5956     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5957     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5958   fi
5959   if test "$guest_agent_ntddscsi" = "yes" ; then
5960     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5961   fi
5962   if test "$guest_agent_msi" = "yes"; then
5963     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
5964     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5965     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
5966     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
5967     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5968     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5969     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5970   fi
5971 else
5972   echo "CONFIG_POSIX=y" >> $config_host_mak
5973 fi
5974
5975 if test "$linux" = "yes" ; then
5976   echo "CONFIG_LINUX=y" >> $config_host_mak
5977 fi
5978
5979 if test "$darwin" = "yes" ; then
5980   echo "CONFIG_DARWIN=y" >> $config_host_mak
5981 fi
5982
5983 if test "$solaris" = "yes" ; then
5984   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5985 fi
5986 if test "$haiku" = "yes" ; then
5987   echo "CONFIG_HAIKU=y" >> $config_host_mak
5988 fi
5989 if test "$static" = "yes" ; then
5990   echo "CONFIG_STATIC=y" >> $config_host_mak
5991 fi
5992 if test "$profiler" = "yes" ; then
5993   echo "CONFIG_PROFILER=y" >> $config_host_mak
5994 fi
5995 if test "$want_tools" = "yes" ; then
5996   echo "CONFIG_TOOLS=y" >> $config_host_mak
5997 fi
5998 if test "$guest_agent" = "yes" ; then
5999   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
6000 fi
6001 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
6002 if test "$vde" = "yes" ; then
6003   echo "CONFIG_VDE=y" >> $config_host_mak
6004   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
6005 fi
6006 if test "$netmap" = "yes" ; then
6007   echo "CONFIG_NETMAP=y" >> $config_host_mak
6008 fi
6009 if test "$l2tpv3" = "yes" ; then
6010   echo "CONFIG_L2TPV3=y" >> $config_host_mak
6011 fi
6012 if test "$gprof" = "yes" ; then
6013   echo "CONFIG_GPROF=y" >> $config_host_mak
6014 fi
6015 if test "$cap_ng" = "yes" ; then
6016   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
6017   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
6018 fi
6019 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
6020 for drv in $audio_drv_list; do
6021     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
6022     echo "$def=y" >> $config_host_mak
6023 done
6024 if test "$alsa" = "yes" ; then
6025     echo "CONFIG_ALSA=y" >> $config_host_mak
6026 fi
6027 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6028 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
6029 if test "$libpulse" = "yes" ; then
6030     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
6031 fi
6032 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6033 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6034 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6035 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6036 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6037 if test "$libjack" = "yes" ; then
6038     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6039 fi
6040 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6041 if test "$audio_win_int" = "yes" ; then
6042   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6043 fi
6044 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6045 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6046 if test "$xfs" = "yes" ; then
6047   echo "CONFIG_XFS=y" >> $config_host_mak
6048 fi
6049 qemu_version=$(head $source_path/VERSION)
6050 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6051 echo "SRC_PATH=$source_path" >> $config_host_mak
6052 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6053 if test "$modules" = "yes"; then
6054   # $shacmd can generate a hash started with digit, which the compiler doesn't
6055   # like as an symbol. So prefix it with an underscore
6056   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6057   echo "CONFIG_MODULES=y" >> $config_host_mak
6058 fi
6059 if test "$module_upgrades" = "yes"; then
6060   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6061 fi
6062 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6063   echo "CONFIG_X11=y" >> $config_host_mak
6064   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6065   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6066 fi
6067 if test "$pipe2" = "yes" ; then
6068   echo "CONFIG_PIPE2=y" >> $config_host_mak
6069 fi
6070 if test "$accept4" = "yes" ; then
6071   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6072 fi
6073 if test "$splice" = "yes" ; then
6074   echo "CONFIG_SPLICE=y" >> $config_host_mak
6075 fi
6076 if test "$eventfd" = "yes" ; then
6077   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6078 fi
6079 if test "$memfd" = "yes" ; then
6080   echo "CONFIG_MEMFD=y" >> $config_host_mak
6081 fi
6082 if test "$have_usbfs" = "yes" ; then
6083   echo "CONFIG_USBFS=y" >> $config_host_mak
6084 fi
6085 if test "$fallocate" = "yes" ; then
6086   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6087 fi
6088 if test "$fallocate_punch_hole" = "yes" ; then
6089   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6090 fi
6091 if test "$fallocate_zero_range" = "yes" ; then
6092   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6093 fi
6094 if test "$posix_fallocate" = "yes" ; then
6095   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6096 fi
6097 if test "$sync_file_range" = "yes" ; then
6098   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6099 fi
6100 if test "$fiemap" = "yes" ; then
6101   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6102 fi
6103 if test "$dup3" = "yes" ; then
6104   echo "CONFIG_DUP3=y" >> $config_host_mak
6105 fi
6106 if test "$ppoll" = "yes" ; then
6107   echo "CONFIG_PPOLL=y" >> $config_host_mak
6108 fi
6109 if test "$prctl_pr_set_timerslack" = "yes" ; then
6110   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6111 fi
6112 if test "$epoll" = "yes" ; then
6113   echo "CONFIG_EPOLL=y" >> $config_host_mak
6114 fi
6115 if test "$epoll_create1" = "yes" ; then
6116   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6117 fi
6118 if test "$sendfile" = "yes" ; then
6119   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6120 fi
6121 if test "$timerfd" = "yes" ; then
6122   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6123 fi
6124 if test "$setns" = "yes" ; then
6125   echo "CONFIG_SETNS=y" >> $config_host_mak
6126 fi
6127 if test "$clock_adjtime" = "yes" ; then
6128   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6129 fi
6130 if test "$syncfs" = "yes" ; then
6131   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6132 fi
6133 if test "$kcov" = "yes" ; then
6134   echo "CONFIG_KCOV=y" >> $config_host_mak
6135 fi
6136 if test "$btrfs" = "yes" ; then
6137   echo "CONFIG_BTRFS=y" >> $config_host_mak
6138 fi
6139 if test "$inotify" = "yes" ; then
6140   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6141 fi
6142 if test "$inotify1" = "yes" ; then
6143   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6144 fi
6145 if test "$sem_timedwait" = "yes" ; then
6146   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6147 fi
6148 if test "$strchrnul" = "yes" ; then
6149   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6150 fi
6151 if test "$st_atim" = "yes" ; then
6152   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6153 fi
6154 if test "$byteswap_h" = "yes" ; then
6155   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6156 fi
6157 if test "$bswap_h" = "yes" ; then
6158   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6159 fi
6160 if test "$curl" = "yes" ; then
6161   echo "CONFIG_CURL=y" >> $config_host_mak
6162   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6163   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6164 fi
6165 if test "$brlapi" = "yes" ; then
6166   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6167   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6168 fi
6169 if test "$gtk" = "yes" ; then
6170   echo "CONFIG_GTK=y" >> $config_host_mak
6171   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6172   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6173   if test "$gtk_gl" = "yes" ; then
6174     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6175   fi
6176 fi
6177 if test "$gio" = "yes" ; then
6178     echo "CONFIG_GIO=y" >> $config_host_mak
6179     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6180     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6181     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6182 fi
6183 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6184 if test "$gnutls" = "yes" ; then
6185   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6186   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6187   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6188 fi
6189 if test "$gcrypt" = "yes" ; then
6190   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6191   if test "$gcrypt_hmac" = "yes" ; then
6192     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6193   fi
6194   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6195   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6196 fi
6197 if test "$nettle" = "yes" ; then
6198   echo "CONFIG_NETTLE=y" >> $config_host_mak
6199   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6200   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6201   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6202 fi
6203 if test "$qemu_private_xts" = "yes" ; then
6204   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6205 fi
6206 if test "$tasn1" = "yes" ; then
6207   echo "CONFIG_TASN1=y" >> $config_host_mak
6208 fi
6209 if test "$auth_pam" = "yes" ; then
6210     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6211 fi
6212 if test "$have_ifaddrs_h" = "yes" ; then
6213     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6214 fi
6215 if test "$have_drm_h" = "yes" ; then
6216   echo "HAVE_DRM_H=y" >> $config_host_mak
6217 fi
6218 if test "$have_broken_size_max" = "yes" ; then
6219     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6220 fi
6221 if test "$have_openpty" = "yes" ; then
6222     echo "HAVE_OPENPTY=y" >> $config_host_mak
6223 fi
6224 if test "$have_sys_signal_h" = "yes" ; then
6225     echo "HAVE_SYS_SIGNAL_H=y" >> $config_host_mak
6226 fi
6227
6228 # Work around a system header bug with some kernel/XFS header
6229 # versions where they both try to define 'struct fsxattr':
6230 # xfs headers will not try to redefine structs from linux headers
6231 # if this macro is set.
6232 if test "$have_fsxattr" = "yes" ; then
6233     echo "HAVE_FSXATTR=y" >> $config_host_mak
6234 fi
6235 if test "$have_copy_file_range" = "yes" ; then
6236     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6237 fi
6238 if test "$vte" = "yes" ; then
6239   echo "CONFIG_VTE=y" >> $config_host_mak
6240   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6241   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6242 fi
6243 if test "$virglrenderer" = "yes" ; then
6244   echo "CONFIG_VIRGL=y" >> $config_host_mak
6245   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6246   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6247 fi
6248 if test "$xen" = "enabled" ; then
6249   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6250   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6251   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6252   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6253 fi
6254 if test "$linux_aio" = "yes" ; then
6255   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6256 fi
6257 if test "$linux_io_uring" = "yes" ; then
6258   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6259   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6260   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6261 fi
6262 if test "$attr" = "yes" ; then
6263   echo "CONFIG_ATTR=y" >> $config_host_mak
6264   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6265 fi
6266 if test "$libattr" = "yes" ; then
6267   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6268 fi
6269 if test "$virtfs" = "yes" ; then
6270   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6271 fi
6272 if test "$vhost_scsi" = "yes" ; then
6273   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6274 fi
6275 if test "$vhost_net" = "yes" ; then
6276   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6277 fi
6278 if test "$vhost_net_user" = "yes" ; then
6279   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6280 fi
6281 if test "$vhost_net_vdpa" = "yes" ; then
6282   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6283 fi
6284 if test "$vhost_crypto" = "yes" ; then
6285   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6286 fi
6287 if test "$vhost_vsock" = "yes" ; then
6288   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6289   if test "$vhost_user" = "yes" ; then
6290     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6291   fi
6292 fi
6293 if test "$vhost_kernel" = "yes" ; then
6294   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6295 fi
6296 if test "$vhost_user" = "yes" ; then
6297   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6298 fi
6299 if test "$vhost_vdpa" = "yes" ; then
6300   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6301 fi
6302 if test "$vhost_user_fs" = "yes" ; then
6303   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6304 fi
6305 if test "$iovec" = "yes" ; then
6306   echo "CONFIG_IOVEC=y" >> $config_host_mak
6307 fi
6308 if test "$preadv" = "yes" ; then
6309   echo "CONFIG_PREADV=y" >> $config_host_mak
6310 fi
6311 if test "$membarrier" = "yes" ; then
6312   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6313 fi
6314 if test "$signalfd" = "yes" ; then
6315   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6316 fi
6317 if test "$optreset" = "yes" ; then
6318   echo "HAVE_OPTRESET=y" >> $config_host_mak
6319 fi
6320 if test "$tcg" = "enabled"; then
6321   if test "$tcg_interpreter" = "yes" ; then
6322     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6323   fi
6324 fi
6325 if test "$fdatasync" = "yes" ; then
6326   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6327 fi
6328 if test "$madvise" = "yes" ; then
6329   echo "CONFIG_MADVISE=y" >> $config_host_mak
6330 fi
6331 if test "$posix_madvise" = "yes" ; then
6332   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6333 fi
6334 if test "$posix_memalign" = "yes" ; then
6335   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6336 fi
6337 if test "$spice" = "yes" ; then
6338   echo "CONFIG_SPICE=y" >> $config_host_mak
6339   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6340   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6341 fi
6342
6343 if test "$smartcard" = "yes" ; then
6344   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6345   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6346   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6347 fi
6348
6349 if test "$libusb" = "yes" ; then
6350   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6351   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6352   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6353 fi
6354
6355 if test "$usb_redir" = "yes" ; then
6356   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6357   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6358   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6359 fi
6360
6361 if test "$opengl" = "yes" ; then
6362   echo "CONFIG_OPENGL=y" >> $config_host_mak
6363   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
6364   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6365   if test "$opengl_dmabuf" = "yes" ; then
6366     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6367   fi
6368 fi
6369
6370 if test "$gbm" = "yes" ; then
6371     echo "CONFIG_GBM=y" >> $config_host_mak
6372     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6373     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6374 fi
6375
6376
6377 if test "$avx2_opt" = "yes" ; then
6378   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
6379 fi
6380
6381 if test "$avx512f_opt" = "yes" ; then
6382   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
6383 fi
6384
6385 if test "$lzo" = "yes" ; then
6386   echo "CONFIG_LZO=y" >> $config_host_mak
6387   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
6388 fi
6389
6390 if test "$snappy" = "yes" ; then
6391   echo "CONFIG_SNAPPY=y" >> $config_host_mak
6392   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
6393 fi
6394
6395 if test "$bzip2" = "yes" ; then
6396   echo "CONFIG_BZIP2=y" >> $config_host_mak
6397   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
6398 fi
6399
6400 if test "$lzfse" = "yes" ; then
6401   echo "CONFIG_LZFSE=y" >> $config_host_mak
6402   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
6403 fi
6404
6405 if test "$zstd" = "yes" ; then
6406   echo "CONFIG_ZSTD=y" >> $config_host_mak
6407   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
6408   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
6409 fi
6410
6411 if test "$libiscsi" = "yes" ; then
6412   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
6413   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
6414   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
6415 fi
6416
6417 if test "$libnfs" = "yes" ; then
6418   echo "CONFIG_LIBNFS=y" >> $config_host_mak
6419   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
6420 fi
6421
6422 if test "$seccomp" = "yes"; then
6423   echo "CONFIG_SECCOMP=y" >> $config_host_mak
6424   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
6425   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
6426 fi
6427
6428 # XXX: suppress that
6429 if [ "$bsd" = "yes" ] ; then
6430   echo "CONFIG_BSD=y" >> $config_host_mak
6431 fi
6432
6433 if test "$qom_cast_debug" = "yes" ; then
6434   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
6435 fi
6436 if test "$rbd" = "yes" ; then
6437   echo "CONFIG_RBD=y" >> $config_host_mak
6438   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
6439 fi
6440
6441 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
6442 if test "$coroutine_pool" = "yes" ; then
6443   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
6444 else
6445   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
6446 fi
6447
6448 if test "$debug_stack_usage" = "yes" ; then
6449   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
6450 fi
6451
6452 if test "$crypto_afalg" = "yes" ; then
6453   echo "CONFIG_AF_ALG=y" >> $config_host_mak
6454 fi
6455
6456 if test "$open_by_handle_at" = "yes" ; then
6457   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
6458 fi
6459
6460 if test "$linux_magic_h" = "yes" ; then
6461   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
6462 fi
6463
6464 if test "$valgrind_h" = "yes" ; then
6465   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
6466 fi
6467
6468 if test "$have_asan_iface_fiber" = "yes" ; then
6469     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
6470 fi
6471
6472 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
6473     echo "CONFIG_TSAN=y" >> $config_host_mak
6474 fi
6475
6476 if test "$has_environ" = "yes" ; then
6477   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
6478 fi
6479
6480 if test "$cpuid_h" = "yes" ; then
6481   echo "CONFIG_CPUID_H=y" >> $config_host_mak
6482 fi
6483
6484 if test "$int128" = "yes" ; then
6485   echo "CONFIG_INT128=y" >> $config_host_mak
6486 fi
6487
6488 if test "$atomic128" = "yes" ; then
6489   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
6490 fi
6491
6492 if test "$cmpxchg128" = "yes" ; then
6493   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
6494 fi
6495
6496 if test "$atomic64" = "yes" ; then
6497   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
6498 fi
6499
6500 if test "$attralias" = "yes" ; then
6501   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
6502 fi
6503
6504 if test "$getauxval" = "yes" ; then
6505   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
6506 fi
6507
6508 if test "$glusterfs" = "yes" ; then
6509   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
6510   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
6511   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
6512 fi
6513
6514 if test "$glusterfs_xlator_opt" = "yes" ; then
6515   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
6516 fi
6517
6518 if test "$glusterfs_discard" = "yes" ; then
6519   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
6520 fi
6521
6522 if test "$glusterfs_fallocate" = "yes" ; then
6523   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
6524 fi
6525
6526 if test "$glusterfs_zerofill" = "yes" ; then
6527   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
6528 fi
6529
6530 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
6531   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
6532 fi
6533
6534 if test "$glusterfs_iocb_has_stat" = "yes" ; then
6535   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
6536 fi
6537
6538 if test "$libssh" = "yes" ; then
6539   echo "CONFIG_LIBSSH=y" >> $config_host_mak
6540   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
6541   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
6542 fi
6543
6544 if test "$live_block_migration" = "yes" ; then
6545   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
6546 fi
6547
6548 if test "$tpm" = "yes"; then
6549   echo 'CONFIG_TPM=y' >> $config_host_mak
6550 fi
6551
6552 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
6553 if have_backend "nop"; then
6554   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
6555 fi
6556 if have_backend "simple"; then
6557   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
6558   # Set the appropriate trace file.
6559   trace_file="\"$trace_file-\" FMT_pid"
6560 fi
6561 if have_backend "log"; then
6562   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
6563 fi
6564 if have_backend "ust"; then
6565   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
6566   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
6567   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
6568 fi
6569 if have_backend "dtrace"; then
6570   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
6571   if test "$trace_backend_stap" = "yes" ; then
6572     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
6573   fi
6574 fi
6575 if have_backend "ftrace"; then
6576   if test "$linux" = "yes" ; then
6577     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
6578   else
6579     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
6580   fi
6581 fi
6582 if have_backend "syslog"; then
6583   if test "$posix_syslog" = "yes" ; then
6584     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
6585   else
6586     feature_not_found "syslog(trace backend)" "syslog not available"
6587   fi
6588 fi
6589 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6590
6591 if test "$rdma" = "yes" ; then
6592   echo "CONFIG_RDMA=y" >> $config_host_mak
6593   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6594 fi
6595
6596 if test "$pvrdma" = "yes" ; then
6597   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6598 fi
6599
6600 if test "$have_rtnetlink" = "yes" ; then
6601   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6602 fi
6603
6604 if test "$libxml2" = "yes" ; then
6605   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6606   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6607   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6608 fi
6609
6610 if test "$replication" = "yes" ; then
6611   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6612 fi
6613
6614 if test "$have_af_vsock" = "yes" ; then
6615   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6616 fi
6617
6618 if test "$have_sysmacros" = "yes" ; then
6619   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6620 fi
6621
6622 if test "$have_static_assert" = "yes" ; then
6623   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6624 fi
6625
6626 if test "$have_utmpx" = "yes" ; then
6627   echo "HAVE_UTMPX=y" >> $config_host_mak
6628 fi
6629 if test "$have_getrandom" = "yes" ; then
6630   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6631 fi
6632 if test "$ivshmem" = "yes" ; then
6633   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6634 fi
6635 if test "$debug_mutex" = "yes" ; then
6636   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6637 fi
6638
6639 # Hold two types of flag:
6640 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6641 #                                     a thread we have a handle to
6642 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6643 #                                     platform
6644 if test "$pthread_setname_np_w_tid" = "yes" ; then
6645   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6646   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6647 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6648   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6649   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6650 fi
6651
6652 if test "$libpmem" = "yes" ; then
6653   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6654   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6655   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6656 fi
6657
6658 if test "$libdaxctl" = "yes" ; then
6659   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6660   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6661 fi
6662
6663 if test "$bochs" = "yes" ; then
6664   echo "CONFIG_BOCHS=y" >> $config_host_mak
6665 fi
6666 if test "$cloop" = "yes" ; then
6667   echo "CONFIG_CLOOP=y" >> $config_host_mak
6668 fi
6669 if test "$dmg" = "yes" ; then
6670   echo "CONFIG_DMG=y" >> $config_host_mak
6671 fi
6672 if test "$qcow1" = "yes" ; then
6673   echo "CONFIG_QCOW1=y" >> $config_host_mak
6674 fi
6675 if test "$vdi" = "yes" ; then
6676   echo "CONFIG_VDI=y" >> $config_host_mak
6677 fi
6678 if test "$vvfat" = "yes" ; then
6679   echo "CONFIG_VVFAT=y" >> $config_host_mak
6680 fi
6681 if test "$qed" = "yes" ; then
6682   echo "CONFIG_QED=y" >> $config_host_mak
6683 fi
6684 if test "$parallels" = "yes" ; then
6685   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6686 fi
6687 if test "$sheepdog" = "yes" ; then
6688   add_to deprecated_features "sheepdog"
6689   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6690 fi
6691 if test "$pty_h" = "yes" ; then
6692   echo "HAVE_PTY_H=y" >> $config_host_mak
6693 fi
6694 if test "$have_mlockall" = "yes" ; then
6695   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6696 fi
6697 if test "$fuzzing" = "yes" ; then
6698   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6699   # needed CFLAGS have already been provided
6700   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6701     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6702     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6703   else
6704     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6705   fi
6706 fi
6707
6708 if test "$plugins" = "yes" ; then
6709     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6710     # Copy the export object list to the build dir
6711     if test "$ld_dynamic_list" = "yes" ; then
6712         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6713         ld_symbols=qemu-plugins-ld.symbols
6714         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6715     elif test "$ld_exported_symbols_list" = "yes" ; then
6716         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6717         ld64_symbols=qemu-plugins-ld64.symbols
6718         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6719         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6720             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6721     else
6722         error_exit \
6723             "If \$plugins=yes, either \$ld_dynamic_list or " \
6724             "\$ld_exported_symbols_list should have been set to 'yes'."
6725     fi
6726 fi
6727
6728 if test -n "$gdb_bin" ; then
6729     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6730 fi
6731
6732 if test "$secret_keyring" = "yes" ; then
6733   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6734 fi
6735
6736 echo "ROMS=$roms" >> $config_host_mak
6737 echo "MAKE=$make" >> $config_host_mak
6738 echo "PYTHON=$python" >> $config_host_mak
6739 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6740 echo "MESON=$meson" >> $config_host_mak
6741 echo "NINJA=$ninja" >> $config_host_mak
6742 echo "CC=$cc" >> $config_host_mak
6743 if $iasl -h > /dev/null 2>&1; then
6744   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6745 fi
6746 echo "CXX=$cxx" >> $config_host_mak
6747 echo "OBJCC=$objcc" >> $config_host_mak
6748 echo "AR=$ar" >> $config_host_mak
6749 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6750 echo "AS=$as" >> $config_host_mak
6751 echo "CCAS=$ccas" >> $config_host_mak
6752 echo "CPP=$cpp" >> $config_host_mak
6753 echo "OBJCOPY=$objcopy" >> $config_host_mak
6754 echo "LD=$ld" >> $config_host_mak
6755 echo "RANLIB=$ranlib" >> $config_host_mak
6756 echo "NM=$nm" >> $config_host_mak
6757 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6758 echo "WINDRES=$windres" >> $config_host_mak
6759 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6760 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6761 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6762 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6763 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6764 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6765 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
6766 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6767 echo "EXESUF=$EXESUF" >> $config_host_mak
6768 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6769 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6770 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6771 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6772 if test "$gcov" = "yes" ; then
6773   echo "CONFIG_GCOV=y" >> $config_host_mak
6774 fi
6775
6776 if test "$fuzzing" != "no"; then
6777     echo "CONFIG_FUZZ=y" >> $config_host_mak
6778 fi
6779 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6780
6781 if test "$rng_none" = "yes"; then
6782   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6783 fi
6784
6785 # use included Linux headers
6786 if test "$linux" = "yes" ; then
6787   mkdir -p linux-headers
6788   case "$cpu" in
6789   i386|x86_64|x32)
6790     linux_arch=x86
6791     ;;
6792   ppc|ppc64|ppc64le)
6793     linux_arch=powerpc
6794     ;;
6795   s390x)
6796     linux_arch=s390
6797     ;;
6798   aarch64)
6799     linux_arch=arm64
6800     ;;
6801   mips64)
6802     linux_arch=mips
6803     ;;
6804   *)
6805     # For most CPUs the kernel architecture name and QEMU CPU name match.
6806     linux_arch="$cpu"
6807     ;;
6808   esac
6809     # For non-KVM architectures we will not have asm headers
6810     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6811       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6812     fi
6813 fi
6814
6815 for target in $target_list; do
6816     target_dir="$target"
6817     target_name=$(echo $target | cut -d '-' -f 1)
6818     mkdir -p $target_dir
6819     case $target in
6820         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6821         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6822     esac
6823 done
6824
6825 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6826 if test "$default_targets" = "yes"; then
6827   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6828 fi
6829
6830 if test "$numa" = "yes"; then
6831   echo "CONFIG_NUMA=y" >> $config_host_mak
6832   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6833 fi
6834
6835 if test "$ccache_cpp2" = "yes"; then
6836   echo "export CCACHE_CPP2=y" >> $config_host_mak
6837 fi
6838
6839 if test "$safe_stack" = "yes"; then
6840   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6841 fi
6842
6843 # If we're using a separate build tree, set it up now.
6844 # DIRS are directories which we simply mkdir in the build tree;
6845 # LINKS are things to symlink back into the source tree
6846 # (these can be both files and directories).
6847 # Caution: do not add files or directories here using wildcards. This
6848 # will result in problems later if a new file matching the wildcard is
6849 # added to the source tree -- nothing will cause configure to be rerun
6850 # so the build tree will be missing the link back to the new file, and
6851 # tests might fail. Prefer to keep the relevant files in their own
6852 # directory and symlink the directory instead.
6853 # UNLINK is used to remove symlinks from older development versions
6854 # that might get into the way when doing "git update" without doing
6855 # a "make distclean" in between.
6856 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6857 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6858 DIRS="$DIRS docs docs/interop fsdev scsi"
6859 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6860 DIRS="$DIRS roms/seabios"
6861 DIRS="$DIRS contrib/plugins/"
6862 LINKS="Makefile"
6863 LINKS="$LINKS tests/tcg/lm32/Makefile"
6864 LINKS="$LINKS tests/tcg/Makefile.target"
6865 LINKS="$LINKS pc-bios/optionrom/Makefile"
6866 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6867 LINKS="$LINKS roms/seabios/Makefile"
6868 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6869 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6870 LINKS="$LINKS tests/acceptance tests/data"
6871 LINKS="$LINKS tests/qemu-iotests/check"
6872 LINKS="$LINKS python"
6873 LINKS="$LINKS contrib/plugins/Makefile "
6874 UNLINK="pc-bios/keymaps"
6875 for bios_file in \
6876     $source_path/pc-bios/*.bin \
6877     $source_path/pc-bios/*.elf \
6878     $source_path/pc-bios/*.lid \
6879     $source_path/pc-bios/*.rom \
6880     $source_path/pc-bios/*.dtb \
6881     $source_path/pc-bios/*.img \
6882     $source_path/pc-bios/openbios-* \
6883     $source_path/pc-bios/u-boot.* \
6884     $source_path/pc-bios/edk2-*.fd.bz2 \
6885     $source_path/pc-bios/palcode-*
6886 do
6887     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6888 done
6889 mkdir -p $DIRS
6890 for f in $LINKS ; do
6891     if [ -e "$source_path/$f" ]; then
6892         symlink "$source_path/$f" "$f"
6893     fi
6894 done
6895 for f in $UNLINK ; do
6896     if [ -L "$f" ]; then
6897         rm -f "$f"
6898     fi
6899 done
6900
6901 (for i in $cross_cc_vars; do
6902   export $i
6903 done
6904 export target_list source_path use_containers
6905 $source_path/tests/tcg/configure.sh)
6906
6907 # temporary config to build submodules
6908 for rom in seabios; do
6909     config_mak=roms/$rom/config.mak
6910     echo "# Automatically generated by configure - do not modify" > $config_mak
6911     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6912     echo "AS=$as" >> $config_mak
6913     echo "CCAS=$ccas" >> $config_mak
6914     echo "CC=$cc" >> $config_mak
6915     echo "BCC=bcc" >> $config_mak
6916     echo "CPP=$cpp" >> $config_mak
6917     echo "OBJCOPY=objcopy" >> $config_mak
6918     echo "IASL=$iasl" >> $config_mak
6919     echo "LD=$ld" >> $config_mak
6920     echo "RANLIB=$ranlib" >> $config_mak
6921 done
6922
6923 # set up qemu-iotests in this build directory
6924 iotests_common_env="tests/qemu-iotests/common.env"
6925
6926 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
6927 echo >> "$iotests_common_env"
6928 echo "export PYTHON='$python'" >> "$iotests_common_env"
6929
6930 if test "$skip_meson" = no; then
6931 cross="config-meson.cross.new"
6932 meson_quote() {
6933     echo "'$(echo $* | sed "s/ /','/g")'"
6934 }
6935
6936 echo "# Automatically generated by configure - do not modify" > $cross
6937 echo "[properties]" >> $cross
6938 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6939 echo "[built-in options]" >> $cross
6940 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6941 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6942 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6943 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6944 echo "[binaries]" >> $cross
6945 echo "c = [$(meson_quote $cc)]" >> $cross
6946 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6947 echo "ar = [$(meson_quote $ar)]" >> $cross
6948 echo "nm = [$(meson_quote $nm)]" >> $cross
6949 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6950 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6951 if has $sdl2_config; then
6952   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6953 fi
6954 echo "strip = [$(meson_quote $strip)]" >> $cross
6955 echo "windres = [$(meson_quote $windres)]" >> $cross
6956 if test -n "$cross_prefix"; then
6957     cross_arg="--cross-file config-meson.cross"
6958     echo "[host_machine]" >> $cross
6959     if test "$mingw32" = "yes" ; then
6960         echo "system = 'windows'" >> $cross
6961     fi
6962     if test "$linux" = "yes" ; then
6963         echo "system = 'linux'" >> $cross
6964     fi
6965     case "$ARCH" in
6966         i386|x86_64)
6967             echo "cpu_family = 'x86'" >> $cross
6968             ;;
6969         ppc64le)
6970             echo "cpu_family = 'ppc64'" >> $cross
6971             ;;
6972         *)
6973             echo "cpu_family = '$ARCH'" >> $cross
6974             ;;
6975     esac
6976     echo "cpu = '$cpu'" >> $cross
6977     if test "$bigendian" = "yes" ; then
6978         echo "endian = 'big'" >> $cross
6979     else
6980         echo "endian = 'little'" >> $cross
6981     fi
6982 else
6983     cross_arg="--native-file config-meson.cross"
6984 fi
6985 mv $cross config-meson.cross
6986
6987 rm -rf meson-private meson-info meson-logs
6988 unset staticpic
6989 if ! version_ge "$($meson --version)" 0.56.0; then
6990   staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
6991 fi
6992 NINJA=$ninja $meson setup \
6993         --prefix "$prefix" \
6994         --libdir "$libdir" \
6995         --libexecdir "$libexecdir" \
6996         --bindir "$bindir" \
6997         --includedir "$includedir" \
6998         --datadir "$datadir" \
6999         --mandir "$mandir" \
7000         --sysconfdir "$sysconfdir" \
7001         --localedir "$localedir" \
7002         --localstatedir "$local_statedir" \
7003         -Ddocdir="$docdir" \
7004         -Dqemu_firmwarepath="$firmwarepath" \
7005         -Dqemu_suffix="$qemu_suffix" \
7006         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
7007         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
7008         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
7009         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
7010         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
7011         ${staticpic:+-Db_staticpic=$staticpic} \
7012         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
7013         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
7014         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
7015         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
7016         -Dcocoa=$cocoa -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
7017         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
7018         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
7019         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt \
7020         -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
7021         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
7022         -Dvhost_user_blk_server=$vhost_user_blk_server \
7023         -Dfuse=$fuse \
7024         $cross_arg \
7025         "$PWD" "$source_path"
7026
7027 if test "$?" -ne 0 ; then
7028     error_exit "meson setup failed"
7029 fi
7030 fi
7031
7032 if test -n "${deprecated_features}"; then
7033     echo "Warning, deprecated features enabled."
7034     echo "Please see docs/system/deprecated.rst"
7035     echo "  features: ${deprecated_features}"
7036 fi
7037
7038 # Save the configure command line for later reuse.
7039 cat <<EOD >config.status
7040 #!/bin/sh
7041 # Generated by configure.
7042 # Run this file to recreate the current configuration.
7043 # Compiler output produced by configure, useful for debugging
7044 # configure, is in config.log if it exists.
7045 EOD
7046
7047 preserve_env() {
7048     envname=$1
7049
7050     eval envval=\$$envname
7051
7052     if test -n "$envval"
7053     then
7054         echo "$envname='$envval'" >> config.status
7055         echo "export $envname" >> config.status
7056     else
7057         echo "unset $envname" >> config.status
7058     fi
7059 }
7060
7061 # Preserve various env variables that influence what
7062 # features/build target configure will detect
7063 preserve_env AR
7064 preserve_env AS
7065 preserve_env CC
7066 preserve_env CPP
7067 preserve_env CXX
7068 preserve_env INSTALL
7069 preserve_env LD
7070 preserve_env LD_LIBRARY_PATH
7071 preserve_env LIBTOOL
7072 preserve_env MAKE
7073 preserve_env NM
7074 preserve_env OBJCOPY
7075 preserve_env PATH
7076 preserve_env PKG_CONFIG
7077 preserve_env PKG_CONFIG_LIBDIR
7078 preserve_env PKG_CONFIG_PATH
7079 preserve_env PYTHON
7080 preserve_env SDL2_CONFIG
7081 preserve_env SMBD
7082 preserve_env STRIP
7083 preserve_env WINDRES
7084
7085 printf "exec" >>config.status
7086 for i in "$0" "$@"; do
7087   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
7088 done
7089 echo ' "$@"' >>config.status
7090 chmod +x config.status
7091
7092 rm -r "$TMPDIR1"