configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     mkdir build
  35     touch $MARKER
  36
  37     cat > GNUmakefile <<'EOF'
  38 # This file is auto-generated by configure to support in-source tree
  39 # 'make' command invocation
  40
  41 ifeq ($(MAKECMDGOALS),)
  42 recurse: all
  43 endif
  44
  45 .NOTPARALLEL: %
  46 %: force
  47         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  48         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  49         @if test "$(MAKECMDGOALS)" = "distclean" && \
  50             test -e build/auto-created-by-configure ; \
  51         then \
  52             rm -rf build GNUmakefile ; \
  53         fi
  54 force: ;
  55 .PHONY: force
  56 GNUmakefile: ;
  57
  58 EOF
  59     cd build
  60     exec $source_path/configure "$@"
  61 fi
  62
  63 # Temporary directory used for files created while
  64 # configure runs. Since it is in the build directory
  65 # we can safely blow away any previous version of it
  66 # (and we need not jump through hoops to try to delete
  67 # it when configure exits.)
  68 TMPDIR1="config-temp"
  69 rm -rf "${TMPDIR1}"
  70 mkdir -p "${TMPDIR1}"
  71 if [ $? -ne 0 ]; then
  72     echo "ERROR: failed to create temporary directory"
  73     exit 1
  74 fi
  75
  76 TMPB="qemu-conf"
  77 TMPC="${TMPDIR1}/${TMPB}.c"
  78 TMPO="${TMPDIR1}/${TMPB}.o"
  79 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
  80 TMPE="${TMPDIR1}/${TMPB}.exe"
  81 TMPTXT="${TMPDIR1}/${TMPB}.txt"
  82
  83 rm -f config.log
  84
  85 # Print a helpful header at the top of config.log
  86 echo "# QEMU configure log $(date)" >> config.log
  87 printf "# Configured with:" >> config.log
  88 printf " '%s'" "$0" "$@" >> config.log
  89 echo >> config.log
  90 echo "#" >> config.log
  91
  92 print_error() {
  93     (echo
  94     echo "ERROR: $1"
  95     while test -n "$2"; do
  96         echo "       $2"
  97         shift
  98     done
  99     echo) >&2
 100 }
 101
 102 error_exit() {
 103     print_error "$@"
 104     exit 1
 105 }
 106
 107 do_compiler() {
 108     # Run the compiler, capturing its output to the log. First argument
 109     # is compiler binary to execute.
 110     local compiler="$1"
 111     shift
 112     if test -n "$BASH_VERSION"; then eval '
 113         echo >>config.log "
 114 funcs: ${FUNCNAME[*]}
 115 lines: ${BASH_LINENO[*]}"
 116     '; fi
 117     echo $compiler "$@" >> config.log
 118     $compiler "$@" >> config.log 2>&1 || return $?
 119     # Test passed. If this is an --enable-werror build, rerun
 120     # the test with -Werror and bail out if it fails. This
 121     # makes warning-generating-errors in configure test code
 122     # obvious to developers.
 123     if test "$werror" != "yes"; then
 124         return 0
 125     fi
 126     # Don't bother rerunning the compile if we were already using -Werror
 127     case "$*" in
 128         *-Werror*)
 129            return 0
 130         ;;
 131     esac
 132     echo $compiler -Werror "$@" >> config.log
 133     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 134     error_exit "configure test passed without -Werror but failed with -Werror." \
 135         "This is probably a bug in the configure script. The failing command" \
 136         "will be at the bottom of config.log." \
 137         "You can run configure with --disable-werror to bypass this check."
 138 }
 139
 140 do_cc() {
 141     do_compiler "$cc" "$@"
 142 }
 143
 144 do_cxx() {
 145     do_compiler "$cxx" "$@"
 146 }
 147
 148 # Append $2 to the variable named $1, with space separation
 149 add_to() {
 150     eval $1=\${$1:+\"\$$1 \"}\$2
 151 }
 152
 153 update_cxxflags() {
 154     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 155     # options which some versions of GCC's C++ compiler complain about
 156     # because they only make sense for C programs.
 157     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 158     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu99/-std=gnu++11/)
 159     for arg in $QEMU_CFLAGS; do
 160         case $arg in
 161             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 162             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 163                 ;;
 164             *)
 165                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 166                 ;;
 167         esac
 168     done
 169 }
 170
 171 compile_object() {
 172   local_cflags="$1"
 173   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 174 }
 175
 176 compile_prog() {
 177   local_cflags="$1"
 178   local_ldflags="$2"
 179   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 180       $LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 181 }
 182
 183 # symbolically link $1 to $2.  Portable version of "ln -sf".
 184 symlink() {
 185   rm -rf "$2"
 186   mkdir -p "$(dirname "$2")"
 187   ln -s "$1" "$2"
 188 }
 189
 190 # check whether a command is available to this shell (may be either an
 191 # executable or a builtin)
 192 has() {
 193     type "$1" >/dev/null 2>&1
 194 }
 195
 196 version_ge () {
 197     local_ver1=`echo $1 | tr . ' '`
 198     local_ver2=`echo $2 | tr . ' '`
 199     while true; do
 200         set x $local_ver1
 201         local_first=${2-0}
 202         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 203         shift ${2:+2}
 204         local_ver1=$*
 205         set x $local_ver2
 206         # the second argument finished, the first must be greater or equal
 207         test $# = 1 && return 0
 208         test $local_first -lt $2 && return 1
 209         test $local_first -gt $2 && return 0
 210         shift ${2:+2}
 211         local_ver2=$*
 212     done
 213 }
 214
 215 have_backend () {
 216     echo "$trace_backends" | grep "$1" >/dev/null
 217 }
 218
 219 glob() {
 220     eval test -z '"${1#'"$2"'}"'
 221 }
 222
 223 ld_has() {
 224     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 225 }
 226
 227 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 228 then
 229   error_exit "main directory cannot contain spaces nor colons"
 230 fi
 231
 232 # default parameters
 233 cpu=""
 234 iasl="iasl"
 235 interp_prefix="/usr/gnemul/qemu-%M"
 236 static="no"
 237 cross_prefix=""
 238 audio_drv_list=""
 239 block_drv_rw_whitelist=""
 240 block_drv_ro_whitelist=""
 241 host_cc="cc"
 242 audio_win_int=""
 243 libs_qga=""
 244 debug_info="yes"
 245 stack_protector=""
 246 safe_stack=""
 247 use_containers="yes"
 248 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 249
 250 if test -e "$source_path/.git"
 251 then
 252     git_update=yes
 253     git_submodules="ui/keycodemapdb"
 254     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 255     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 256 else
 257     git_update=no
 258     git_submodules=""
 259
 260     if ! test -f "$source_path/ui/keycodemapdb/README"
 261     then
 262         echo
 263         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 264         echo
 265         echo "This is not a GIT checkout but module content appears to"
 266         echo "be missing. Do not use 'git archive' or GitHub download links"
 267         echo "to acquire QEMU source archives. Non-GIT builds are only"
 268         echo "supported with source archives linked from:"
 269         echo
 270         echo "  https://www.qemu.org/download/#source"
 271         echo
 272         echo "Developers working with GIT can use scripts/archive-source.sh"
 273         echo "if they need to create valid source archives."
 274         echo
 275         exit 1
 276     fi
 277 fi
 278 git="git"
 279
 280 # Don't accept a target_list environment variable.
 281 unset target_list
 282 unset target_list_exclude
 283
 284 # Default value for a variable defining feature "foo".
 285 #  * foo="no"  feature will only be used if --enable-foo arg is given
 286 #  * foo=""    feature will be searched for, and if found, will be used
 287 #              unless --disable-foo is given
 288 #  * foo="yes" this value will only be set by --enable-foo flag.
 289 #              feature will searched for,
 290 #              if not found, configure exits with error
 291 #
 292 # Always add --enable-foo and --disable-foo command line args.
 293 # Distributions want to ensure that several features are compiled in, and it
 294 # is impossible without a --enable-foo that exits if a feature is not found.
 295
 296 brlapi=""
 297 curl=""
 298 iconv="auto"
 299 curses="auto"
 300 docs="auto"
 301 fdt="auto"
 302 netmap="no"
 303 sdl="auto"
 304 sdl_image="auto"
 305 virtfs=""
 306 libudev="auto"
 307 mpath="auto"
 308 vnc="enabled"
 309 sparse="auto"
 310 vde=""
 311 vnc_sasl="auto"
 312 vnc_jpeg="auto"
 313 vnc_png="auto"
 314 xkbcommon="auto"
 315 xen=""
 316 xen_ctrl_version=""
 317 xen_pci_passthrough="auto"
 318 linux_aio=""
 319 linux_io_uring=""
 320 cap_ng=""
 321 attr=""
 322 libattr=""
 323 xfs=""
 324 tcg="enabled"
 325 membarrier=""
 326 vhost_net=""
 327 vhost_crypto=""
 328 vhost_scsi=""
 329 vhost_vsock=""
 330 vhost_user=""
 331 vhost_user_fs=""
 332 kvm="auto"
 333 hax="auto"
 334 hvf="auto"
 335 whpx="auto"
 336 rdma=""
 337 pvrdma=""
 338 gprof="no"
 339 debug_tcg="no"
 340 debug="no"
 341 sanitizers="no"
 342 tsan="no"
 343 fortify_source=""
 344 strip_opt="yes"
 345 tcg_interpreter="no"
 346 bigendian="no"
 347 mingw32="no"
 348 gcov="no"
 349 EXESUF=""
 350 HOST_DSOSUF=".so"
 351 modules="no"
 352 module_upgrades="no"
 353 prefix="/usr/local"
 354 qemu_suffix="qemu"
 355 slirp="auto"
 356 oss_lib=""
 357 bsd="no"
 358 linux="no"
 359 solaris="no"
 360 profiler="no"
 361 cocoa="auto"
 362 softmmu="yes"
 363 linux_user="no"
 364 bsd_user="no"
 365 blobs="yes"
 366 edk2_blobs="no"
 367 pkgversion=""
 368 pie=""
 369 qom_cast_debug="yes"
 370 trace_backends="log"
 371 trace_file="trace"
 372 spice=""
 373 rbd=""
 374 smartcard=""
 375 u2f="auto"
 376 libusb=""
 377 usb_redir=""
 378 opengl=""
 379 opengl_dmabuf="no"
 380 cpuid_h="no"
 381 avx2_opt=""
 382 capstone="auto"
 383 lzo=""
 384 snappy=""
 385 bzip2=""
 386 lzfse=""
 387 zstd=""
 388 guest_agent=""
 389 guest_agent_with_vss="no"
 390 guest_agent_ntddscsi="no"
 391 guest_agent_msi=""
 392 vss_win32_sdk=""
 393 win_sdk="no"
 394 want_tools=""
 395 libiscsi=""
 396 libnfs=""
 397 coroutine=""
 398 coroutine_pool=""
 399 debug_stack_usage="no"
 400 crypto_afalg="no"
 401 seccomp=""
 402 glusterfs=""
 403 glusterfs_xlator_opt="no"
 404 glusterfs_discard="no"
 405 glusterfs_fallocate="no"
 406 glusterfs_zerofill="no"
 407 glusterfs_ftruncate_has_stat="no"
 408 glusterfs_iocb_has_stat="no"
 409 gtk=""
 410 gtk_gl="no"
 411 tls_priority="NORMAL"
 412 gnutls=""
 413 nettle=""
 414 nettle_xts="no"
 415 gcrypt=""
 416 gcrypt_hmac="no"
 417 gcrypt_xts="no"
 418 qemu_private_xts="yes"
 419 auth_pam=""
 420 vte=""
 421 virglrenderer=""
 422 tpm=""
 423 libssh=""
 424 live_block_migration="yes"
 425 numa=""
 426 tcmalloc="no"
 427 jemalloc="no"
 428 replication="yes"
 429 bochs="yes"
 430 cloop="yes"
 431 dmg="yes"
 432 qcow1="yes"
 433 vdi="yes"
 434 vvfat="yes"
 435 qed="yes"
 436 parallels="yes"
 437 sheepdog="no"
 438 libxml2=""
 439 debug_mutex="no"
 440 libpmem=""
 441 default_devices="yes"
 442 plugins="no"
 443 fuzzing="no"
 444 rng_none="no"
 445 secret_keyring=""
 446 libdaxctl=""
 447 meson=""
 448 ninja=""
 449 skip_meson=no
 450 gettext=""
 451
 452 bogus_os="no"
 453 malloc_trim="auto"
 454
 455 # parse CC options first
 456 for opt do
 457   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 458   case "$opt" in
 459   --cross-prefix=*) cross_prefix="$optarg"
 460   ;;
 461   --cc=*) CC="$optarg"
 462   ;;
 463   --cxx=*) CXX="$optarg"
 464   ;;
 465   --cpu=*) cpu="$optarg"
 466   ;;
 467   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 468                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 469   ;;
 470   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 471   ;;
 472   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 473                      EXTRA_LDFLAGS="$optarg"
 474   ;;
 475   --enable-debug-info) debug_info="yes"
 476   ;;
 477   --disable-debug-info) debug_info="no"
 478   ;;
 479   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 480   ;;
 481   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 482                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 483                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 484   ;;
 485   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 486                 cc_archs="$cc_archs $cc_arch"
 487                 eval "cross_cc_${cc_arch}=\$optarg"
 488                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 489   ;;
 490   esac
 491 done
 492 # OS specific
 493 # Using uname is really, really broken.  Once we have the right set of checks
 494 # we can eliminate its usage altogether.
 495
 496 # Preferred compiler:
 497 #  ${CC} (if set)
 498 #  ${cross_prefix}gcc (if cross-prefix specified)
 499 #  system compiler
 500 if test -z "${CC}${cross_prefix}"; then
 501   cc="$host_cc"
 502 else
 503   cc="${CC-${cross_prefix}gcc}"
 504 fi
 505
 506 if test -z "${CXX}${cross_prefix}"; then
 507   cxx="c++"
 508 else
 509   cxx="${CXX-${cross_prefix}g++}"
 510 fi
 511
 512 ar="${AR-${cross_prefix}ar}"
 513 as="${AS-${cross_prefix}as}"
 514 ccas="${CCAS-$cc}"
 515 cpp="${CPP-$cc -E}"
 516 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 517 ld="${LD-${cross_prefix}ld}"
 518 ranlib="${RANLIB-${cross_prefix}ranlib}"
 519 nm="${NM-${cross_prefix}nm}"
 520 strip="${STRIP-${cross_prefix}strip}"
 521 windres="${WINDRES-${cross_prefix}windres}"
 522 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 523 query_pkg_config() {
 524     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 525 }
 526 pkg_config=query_pkg_config
 527 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 528
 529 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 530 ARFLAGS="${ARFLAGS-rv}"
 531
 532 # default flags for all hosts
 533 # We use -fwrapv to tell the compiler that we require a C dialect where
 534 # left shift of signed integers is well defined and has the expected
 535 # 2s-complement style results. (Both clang and gcc agree that it
 536 # provides these semantics.)
 537 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 538 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 539 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 540 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 541
 542 # Flags that are needed during configure but later taken care of by Meson
 543 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 544 CONFIGURE_LDFLAGS=
 545
 546
 547 check_define() {
 548 cat > $TMPC <<EOF
 549 #if !defined($1)
 550 #error $1 not defined
 551 #endif
 552 int main(void) { return 0; }
 553 EOF
 554   compile_object
 555 }
 556
 557 check_include() {
 558 cat > $TMPC <<EOF
 559 #include <$1>
 560 int main(void) { return 0; }
 561 EOF
 562   compile_object
 563 }
 564
 565 write_c_skeleton() {
 566     cat > $TMPC <<EOF
 567 int main(void) { return 0; }
 568 EOF
 569 }
 570
 571 write_c_fuzzer_skeleton() {
 572     cat > $TMPC <<EOF
 573 #include <stdint.h>
 574 #include <sys/types.h>
 575 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 576 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 577 EOF
 578 }
 579
 580 if check_define __linux__ ; then
 581   targetos="Linux"
 582 elif check_define _WIN32 ; then
 583   targetos='MINGW32'
 584 elif check_define __OpenBSD__ ; then
 585   targetos='OpenBSD'
 586 elif check_define __sun__ ; then
 587   targetos='SunOS'
 588 elif check_define __HAIKU__ ; then
 589   targetos='Haiku'
 590 elif check_define __FreeBSD__ ; then
 591   targetos='FreeBSD'
 592 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 593   targetos='GNU/kFreeBSD'
 594 elif check_define __DragonFly__ ; then
 595   targetos='DragonFly'
 596 elif check_define __NetBSD__; then
 597   targetos='NetBSD'
 598 elif check_define __APPLE__; then
 599   targetos='Darwin'
 600 else
 601   # This is a fatal error, but don't report it yet, because we
 602   # might be going to just print the --help text, or it might
 603   # be the result of a missing compiler.
 604   targetos='bogus'
 605   bogus_os='yes'
 606 fi
 607
 608 # Some host OSes need non-standard checks for which CPU to use.
 609 # Note that these checks are broken for cross-compilation: if you're
 610 # cross-compiling to one of these OSes then you'll need to specify
 611 # the correct CPU with the --cpu option.
 612 case $targetos in
 613 Darwin)
 614   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 615   # run 64-bit userspace code.
 616   # If the user didn't specify a CPU explicitly and the kernel says this is
 617   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 618   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 619     cpu="x86_64"
 620   fi
 621   ;;
 622 SunOS)
 623   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 624   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 625     cpu="x86_64"
 626   fi
 627 esac
 628
 629 if test ! -z "$cpu" ; then
 630   # command line argument
 631   :
 632 elif check_define __i386__ ; then
 633   cpu="i386"
 634 elif check_define __x86_64__ ; then
 635   if check_define __ILP32__ ; then
 636     cpu="x32"
 637   else
 638     cpu="x86_64"
 639   fi
 640 elif check_define __sparc__ ; then
 641   if check_define __arch64__ ; then
 642     cpu="sparc64"
 643   else
 644     cpu="sparc"
 645   fi
 646 elif check_define _ARCH_PPC ; then
 647   if check_define _ARCH_PPC64 ; then
 648     if check_define _LITTLE_ENDIAN ; then
 649       cpu="ppc64le"
 650     else
 651       cpu="ppc64"
 652     fi
 653   else
 654     cpu="ppc"
 655   fi
 656 elif check_define __mips__ ; then
 657   cpu="mips"
 658 elif check_define __s390__ ; then
 659   if check_define __s390x__ ; then
 660     cpu="s390x"
 661   else
 662     cpu="s390"
 663   fi
 664 elif check_define __riscv ; then
 665   if check_define _LP64 ; then
 666     cpu="riscv64"
 667   else
 668     cpu="riscv32"
 669   fi
 670 elif check_define __arm__ ; then
 671   cpu="arm"
 672 elif check_define __aarch64__ ; then
 673   cpu="aarch64"
 674 else
 675   cpu=$(uname -m)
 676 fi
 677
 678 ARCH=
 679 # Normalise host CPU name and set ARCH.
 680 # Note that this case should only have supported host CPUs, not guests.
 681 case "$cpu" in
 682   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 683   ;;
 684   ppc64le)
 685     ARCH="ppc64"
 686   ;;
 687   i386|i486|i586|i686|i86pc|BePC)
 688     cpu="i386"
 689   ;;
 690   x86_64|amd64)
 691     cpu="x86_64"
 692   ;;
 693   armv*b|armv*l|arm)
 694     cpu="arm"
 695   ;;
 696   aarch64)
 697     cpu="aarch64"
 698   ;;
 699   mips*)
 700     cpu="mips"
 701   ;;
 702   sparc|sun4[cdmuv])
 703     cpu="sparc"
 704   ;;
 705   *)
 706     # This will result in either an error or falling back to TCI later
 707     ARCH=unknown
 708   ;;
 709 esac
 710 if test -z "$ARCH"; then
 711   ARCH="$cpu"
 712 fi
 713
 714 # OS specific
 715
 716 case $targetos in
 717 MINGW32*)
 718   mingw32="yes"
 719   vhost_user="no"
 720   audio_possible_drivers="dsound sdl"
 721   if check_include dsound.h; then
 722     audio_drv_list="dsound"
 723   else
 724     audio_drv_list=""
 725   fi
 726   supported_os="yes"
 727   pie="no"
 728 ;;
 729 GNU/kFreeBSD)
 730   bsd="yes"
 731   audio_drv_list="oss try-sdl"
 732   audio_possible_drivers="oss sdl pa"
 733 ;;
 734 FreeBSD)
 735   bsd="yes"
 736   make="${MAKE-gmake}"
 737   audio_drv_list="oss try-sdl"
 738   audio_possible_drivers="oss sdl pa"
 739   # needed for kinfo_getvmmap(3) in libutil.h
 740   netmap=""  # enable netmap autodetect
 741 ;;
 742 DragonFly)
 743   bsd="yes"
 744   make="${MAKE-gmake}"
 745   audio_drv_list="oss try-sdl"
 746   audio_possible_drivers="oss sdl pa"
 747 ;;
 748 NetBSD)
 749   bsd="yes"
 750   make="${MAKE-gmake}"
 751   audio_drv_list="oss try-sdl"
 752   audio_possible_drivers="oss sdl"
 753   oss_lib="-lossaudio"
 754 ;;
 755 OpenBSD)
 756   bsd="yes"
 757   make="${MAKE-gmake}"
 758   audio_drv_list="try-sdl"
 759   audio_possible_drivers="sdl"
 760 ;;
 761 Darwin)
 762   bsd="yes"
 763   darwin="yes"
 764   if [ "$cpu" = "x86_64" ] ; then
 765     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 766     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 767   fi
 768   cocoa="enabled"
 769   audio_drv_list="coreaudio try-sdl"
 770   audio_possible_drivers="coreaudio sdl"
 771   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 772   # Disable attempts to use ObjectiveC features in os/object.h since they
 773   # won't work when we're compiling with gcc as a C compiler.
 774   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 775 ;;
 776 SunOS)
 777   solaris="yes"
 778   make="${MAKE-gmake}"
 779   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 780   if test -f /usr/include/sys/soundcard.h ; then
 781     audio_drv_list="oss try-sdl"
 782   fi
 783   audio_possible_drivers="oss sdl"
 784 # needed for CMSG_ macros in sys/socket.h
 785   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 786 # needed for TIOCWIN* defines in termios.h
 787   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 788 ;;
 789 Haiku)
 790   haiku="yes"
 791   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -DBSD_SOURCE $QEMU_CFLAGS"
 792 ;;
 793 Linux)
 794   audio_drv_list="try-pa oss"
 795   audio_possible_drivers="oss alsa sdl pa"
 796   linux="yes"
 797   linux_user="yes"
 798 ;;
 799 esac
 800
 801 if [ "$bsd" = "yes" ] ; then
 802   if [ "$darwin" != "yes" ] ; then
 803     bsd_user="yes"
 804   fi
 805 fi
 806
 807 : ${make=${MAKE-make}}
 808
 809 # We prefer python 3.x. A bare 'python' is traditionally
 810 # python 2.x, but some distros have it as python 3.x, so
 811 # we check that too
 812 python=
 813 explicit_python=no
 814 for binary in "${PYTHON-python3}" python
 815 do
 816     if has "$binary"
 817     then
 818         python=$(command -v "$binary")
 819         break
 820     fi
 821 done
 822
 823
 824 # Check for ancillary tools used in testing
 825 genisoimage=
 826 for binary in genisoimage mkisofs
 827 do
 828     if has $binary
 829     then
 830         genisoimage=$(command -v "$binary")
 831         break
 832     fi
 833 done
 834
 835 : ${smbd=${SMBD-/usr/sbin/smbd}}
 836
 837 # Default objcc to clang if available, otherwise use CC
 838 if has clang; then
 839   objcc=clang
 840 else
 841   objcc="$cc"
 842 fi
 843
 844 if test "$mingw32" = "yes" ; then
 845   EXESUF=".exe"
 846   HOST_DSOSUF=".dll"
 847   # MinGW needs -mthreads for TLS and macro _MT.
 848   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 849   write_c_skeleton;
 850   prefix="/qemu"
 851   qemu_suffix=""
 852   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 853 fi
 854
 855 werror=""
 856
 857 for opt do
 858   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 859   case "$opt" in
 860   --help|-h) show_help=yes
 861   ;;
 862   --version|-V) exec cat $source_path/VERSION
 863   ;;
 864   --prefix=*) prefix="$optarg"
 865   ;;
 866   --interp-prefix=*) interp_prefix="$optarg"
 867   ;;
 868   --cross-prefix=*)
 869   ;;
 870   --cc=*)
 871   ;;
 872   --host-cc=*) host_cc="$optarg"
 873   ;;
 874   --cxx=*)
 875   ;;
 876   --iasl=*) iasl="$optarg"
 877   ;;
 878   --objcc=*) objcc="$optarg"
 879   ;;
 880   --make=*) make="$optarg"
 881   ;;
 882   --install=*)
 883   ;;
 884   --python=*) python="$optarg" ; explicit_python=yes
 885   ;;
 886   --sphinx-build=*) sphinx_build="$optarg"
 887   ;;
 888   --skip-meson) skip_meson=yes
 889   ;;
 890   --meson=*) meson="$optarg"
 891   ;;
 892   --ninja=*) ninja="$optarg"
 893   ;;
 894   --smbd=*) smbd="$optarg"
 895   ;;
 896   --extra-cflags=*)
 897   ;;
 898   --extra-cxxflags=*)
 899   ;;
 900   --extra-ldflags=*)
 901   ;;
 902   --enable-debug-info)
 903   ;;
 904   --disable-debug-info)
 905   ;;
 906   --cross-cc-*)
 907   ;;
 908   --enable-modules)
 909       modules="yes"
 910   ;;
 911   --disable-modules)
 912       modules="no"
 913   ;;
 914   --disable-module-upgrades) module_upgrades="no"
 915   ;;
 916   --enable-module-upgrades) module_upgrades="yes"
 917   ;;
 918   --cpu=*)
 919   ;;
 920   --target-list=*) target_list="$optarg"
 921                    if test "$target_list_exclude"; then
 922                        error_exit "Can't mix --target-list with --target-list-exclude"
 923                    fi
 924   ;;
 925   --target-list-exclude=*) target_list_exclude="$optarg"
 926                    if test "$target_list"; then
 927                        error_exit "Can't mix --target-list-exclude with --target-list"
 928                    fi
 929   ;;
 930   --enable-trace-backends=*) trace_backends="$optarg"
 931   ;;
 932   # XXX: backwards compatibility
 933   --enable-trace-backend=*) trace_backends="$optarg"
 934   ;;
 935   --with-trace-file=*) trace_file="$optarg"
 936   ;;
 937   --with-default-devices) default_devices="yes"
 938   ;;
 939   --without-default-devices) default_devices="no"
 940   ;;
 941   --enable-gprof) gprof="yes"
 942   ;;
 943   --enable-gcov) gcov="yes"
 944   ;;
 945   --static)
 946     static="yes"
 947     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 948   ;;
 949   --mandir=*) mandir="$optarg"
 950   ;;
 951   --bindir=*) bindir="$optarg"
 952   ;;
 953   --libdir=*) libdir="$optarg"
 954   ;;
 955   --libexecdir=*) libexecdir="$optarg"
 956   ;;
 957   --includedir=*) includedir="$optarg"
 958   ;;
 959   --datadir=*) datadir="$optarg"
 960   ;;
 961   --with-suffix=*) qemu_suffix="$optarg"
 962   ;;
 963   --docdir=*) docdir="$optarg"
 964   ;;
 965   --localedir=*) localedir="$optarg"
 966   ;;
 967   --sysconfdir=*) sysconfdir="$optarg"
 968   ;;
 969   --localstatedir=*) local_statedir="$optarg"
 970   ;;
 971   --firmwarepath=*) firmwarepath="$optarg"
 972   ;;
 973   --host=*|--build=*|\
 974   --disable-dependency-tracking|\
 975   --sbindir=*|--sharedstatedir=*|\
 976   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 977   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 978     # These switches are silently ignored, for compatibility with
 979     # autoconf-generated configure scripts. This allows QEMU's
 980     # configure to be used by RPM and similar macros that set
 981     # lots of directory switches by default.
 982   ;;
 983   --disable-sdl) sdl="disabled"
 984   ;;
 985   --enable-sdl) sdl="enabled"
 986   ;;
 987   --disable-sdl-image) sdl_image="disabled"
 988   ;;
 989   --enable-sdl-image) sdl_image="enabled"
 990   ;;
 991   --disable-qom-cast-debug) qom_cast_debug="no"
 992   ;;
 993   --enable-qom-cast-debug) qom_cast_debug="yes"
 994   ;;
 995   --disable-virtfs) virtfs="no"
 996   ;;
 997   --enable-virtfs) virtfs="yes"
 998   ;;
 999   --disable-libudev) libudev="disabled"
1000   ;;
1001   --enable-libudev) libudev="enabled"
1002   ;;
1003   --disable-mpath) mpath="disabled"
1004   ;;
1005   --enable-mpath) mpath="enabled"
1006   ;;
1007   --disable-vnc) vnc="disabled"
1008   ;;
1009   --enable-vnc) vnc="enabled"
1010   ;;
1011   --disable-gettext) gettext="false"
1012   ;;
1013   --enable-gettext) gettext="true"
1014   ;;
1015   --oss-lib=*) oss_lib="$optarg"
1016   ;;
1017   --audio-drv-list=*) audio_drv_list="$optarg"
1018   ;;
1019   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1020   ;;
1021   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1022   ;;
1023   --enable-debug-tcg) debug_tcg="yes"
1024   ;;
1025   --disable-debug-tcg) debug_tcg="no"
1026   ;;
1027   --enable-debug)
1028       # Enable debugging options that aren't excessively noisy
1029       debug_tcg="yes"
1030       debug_mutex="yes"
1031       debug="yes"
1032       strip_opt="no"
1033       fortify_source="no"
1034   ;;
1035   --enable-sanitizers) sanitizers="yes"
1036   ;;
1037   --disable-sanitizers) sanitizers="no"
1038   ;;
1039   --enable-tsan) tsan="yes"
1040   ;;
1041   --disable-tsan) tsan="no"
1042   ;;
1043   --enable-sparse) sparse="enabled"
1044   ;;
1045   --disable-sparse) sparse="disabled"
1046   ;;
1047   --disable-strip) strip_opt="no"
1048   ;;
1049   --disable-vnc-sasl) vnc_sasl="disabled"
1050   ;;
1051   --enable-vnc-sasl) vnc_sasl="enabled"
1052   ;;
1053   --disable-vnc-jpeg) vnc_jpeg="disabled"
1054   ;;
1055   --enable-vnc-jpeg) vnc_jpeg="enabled"
1056   ;;
1057   --disable-vnc-png) vnc_png="disabled"
1058   ;;
1059   --enable-vnc-png) vnc_png="enabled"
1060   ;;
1061   --disable-slirp) slirp="disabled"
1062   ;;
1063   --enable-slirp=git) slirp="internal"
1064   ;;
1065   --enable-slirp=system) slirp="system"
1066   ;;
1067   --disable-vde) vde="no"
1068   ;;
1069   --enable-vde) vde="yes"
1070   ;;
1071   --disable-netmap) netmap="no"
1072   ;;
1073   --enable-netmap) netmap="yes"
1074   ;;
1075   --disable-xen) xen="disabled"
1076   ;;
1077   --enable-xen) xen="enabled"
1078   ;;
1079   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1080   ;;
1081   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1082   ;;
1083   --disable-brlapi) brlapi="no"
1084   ;;
1085   --enable-brlapi) brlapi="yes"
1086   ;;
1087   --disable-kvm) kvm="disabled"
1088   ;;
1089   --enable-kvm) kvm="enabled"
1090   ;;
1091   --disable-hax) hax="disabled"
1092   ;;
1093   --enable-hax) hax="enabled"
1094   ;;
1095   --disable-hvf) hvf="disabled"
1096   ;;
1097   --enable-hvf) hvf="enabled"
1098   ;;
1099   --disable-whpx) whpx="disabled"
1100   ;;
1101   --enable-whpx) whpx="enabled"
1102   ;;
1103   --disable-tcg-interpreter) tcg_interpreter="no"
1104   ;;
1105   --enable-tcg-interpreter) tcg_interpreter="yes"
1106   ;;
1107   --disable-cap-ng)  cap_ng="no"
1108   ;;
1109   --enable-cap-ng) cap_ng="yes"
1110   ;;
1111   --disable-tcg) tcg="disabled"
1112   ;;
1113   --enable-tcg) tcg="enabled"
1114   ;;
1115   --disable-malloc-trim) malloc_trim="disabled"
1116   ;;
1117   --enable-malloc-trim) malloc_trim="enabled"
1118   ;;
1119   --disable-spice) spice="no"
1120   ;;
1121   --enable-spice) spice="yes"
1122   ;;
1123   --disable-libiscsi) libiscsi="no"
1124   ;;
1125   --enable-libiscsi) libiscsi="yes"
1126   ;;
1127   --disable-libnfs) libnfs="no"
1128   ;;
1129   --enable-libnfs) libnfs="yes"
1130   ;;
1131   --enable-profiler) profiler="yes"
1132   ;;
1133   --disable-cocoa) cocoa="disabled"
1134   ;;
1135   --enable-cocoa)
1136       cocoa="enabled" ;
1137       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1138   ;;
1139   --disable-system) softmmu="no"
1140   ;;
1141   --enable-system) softmmu="yes"
1142   ;;
1143   --disable-user)
1144       linux_user="no" ;
1145       bsd_user="no" ;
1146   ;;
1147   --enable-user) ;;
1148   --disable-linux-user) linux_user="no"
1149   ;;
1150   --enable-linux-user) linux_user="yes"
1151   ;;
1152   --disable-bsd-user) bsd_user="no"
1153   ;;
1154   --enable-bsd-user) bsd_user="yes"
1155   ;;
1156   --enable-pie) pie="yes"
1157   ;;
1158   --disable-pie) pie="no"
1159   ;;
1160   --enable-werror) werror="yes"
1161   ;;
1162   --disable-werror) werror="no"
1163   ;;
1164   --enable-stack-protector) stack_protector="yes"
1165   ;;
1166   --disable-stack-protector) stack_protector="no"
1167   ;;
1168   --enable-safe-stack) safe_stack="yes"
1169   ;;
1170   --disable-safe-stack) safe_stack="no"
1171   ;;
1172   --disable-curses) curses="disabled"
1173   ;;
1174   --enable-curses) curses="enabled"
1175   ;;
1176   --disable-iconv) iconv="disabled"
1177   ;;
1178   --enable-iconv) iconv="enabled"
1179   ;;
1180   --disable-curl) curl="no"
1181   ;;
1182   --enable-curl) curl="yes"
1183   ;;
1184   --disable-fdt) fdt="disabled"
1185   ;;
1186   --enable-fdt) fdt="enabled"
1187   ;;
1188   --enable-fdt=git) fdt="internal"
1189   ;;
1190   --enable-fdt=system) fdt="system"
1191   ;;
1192   --disable-linux-aio) linux_aio="no"
1193   ;;
1194   --enable-linux-aio) linux_aio="yes"
1195   ;;
1196   --disable-linux-io-uring) linux_io_uring="no"
1197   ;;
1198   --enable-linux-io-uring) linux_io_uring="yes"
1199   ;;
1200   --disable-attr) attr="no"
1201   ;;
1202   --enable-attr) attr="yes"
1203   ;;
1204   --disable-membarrier) membarrier="no"
1205   ;;
1206   --enable-membarrier) membarrier="yes"
1207   ;;
1208   --disable-blobs) blobs="no"
1209   ;;
1210   --with-pkgversion=*) pkgversion="$optarg"
1211   ;;
1212   --with-coroutine=*) coroutine="$optarg"
1213   ;;
1214   --disable-coroutine-pool) coroutine_pool="no"
1215   ;;
1216   --enable-coroutine-pool) coroutine_pool="yes"
1217   ;;
1218   --enable-debug-stack-usage) debug_stack_usage="yes"
1219   ;;
1220   --enable-crypto-afalg) crypto_afalg="yes"
1221   ;;
1222   --disable-crypto-afalg) crypto_afalg="no"
1223   ;;
1224   --disable-docs) docs="disabled"
1225   ;;
1226   --enable-docs) docs="enabled"
1227   ;;
1228   --disable-vhost-net) vhost_net="no"
1229   ;;
1230   --enable-vhost-net) vhost_net="yes"
1231   ;;
1232   --disable-vhost-crypto) vhost_crypto="no"
1233   ;;
1234   --enable-vhost-crypto) vhost_crypto="yes"
1235   ;;
1236   --disable-vhost-scsi) vhost_scsi="no"
1237   ;;
1238   --enable-vhost-scsi) vhost_scsi="yes"
1239   ;;
1240   --disable-vhost-vsock) vhost_vsock="no"
1241   ;;
1242   --enable-vhost-vsock) vhost_vsock="yes"
1243   ;;
1244   --disable-vhost-user-fs) vhost_user_fs="no"
1245   ;;
1246   --enable-vhost-user-fs) vhost_user_fs="yes"
1247   ;;
1248   --disable-opengl) opengl="no"
1249   ;;
1250   --enable-opengl) opengl="yes"
1251   ;;
1252   --disable-rbd) rbd="no"
1253   ;;
1254   --enable-rbd) rbd="yes"
1255   ;;
1256   --disable-xfsctl) xfs="no"
1257   ;;
1258   --enable-xfsctl) xfs="yes"
1259   ;;
1260   --disable-smartcard) smartcard="no"
1261   ;;
1262   --enable-smartcard) smartcard="yes"
1263   ;;
1264   --disable-u2f) u2f="disabled"
1265   ;;
1266   --enable-u2f) u2f="enabled"
1267   ;;
1268   --disable-libusb) libusb="no"
1269   ;;
1270   --enable-libusb) libusb="yes"
1271   ;;
1272   --disable-usb-redir) usb_redir="no"
1273   ;;
1274   --enable-usb-redir) usb_redir="yes"
1275   ;;
1276   --disable-zlib-test)
1277   ;;
1278   --disable-lzo) lzo="no"
1279   ;;
1280   --enable-lzo) lzo="yes"
1281   ;;
1282   --disable-snappy) snappy="no"
1283   ;;
1284   --enable-snappy) snappy="yes"
1285   ;;
1286   --disable-bzip2) bzip2="no"
1287   ;;
1288   --enable-bzip2) bzip2="yes"
1289   ;;
1290   --enable-lzfse) lzfse="yes"
1291   ;;
1292   --disable-lzfse) lzfse="no"
1293   ;;
1294   --disable-zstd) zstd="no"
1295   ;;
1296   --enable-zstd) zstd="yes"
1297   ;;
1298   --enable-guest-agent) guest_agent="yes"
1299   ;;
1300   --disable-guest-agent) guest_agent="no"
1301   ;;
1302   --enable-guest-agent-msi) guest_agent_msi="yes"
1303   ;;
1304   --disable-guest-agent-msi) guest_agent_msi="no"
1305   ;;
1306   --with-vss-sdk) vss_win32_sdk=""
1307   ;;
1308   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1309   ;;
1310   --without-vss-sdk) vss_win32_sdk="no"
1311   ;;
1312   --with-win-sdk) win_sdk=""
1313   ;;
1314   --with-win-sdk=*) win_sdk="$optarg"
1315   ;;
1316   --without-win-sdk) win_sdk="no"
1317   ;;
1318   --enable-tools) want_tools="yes"
1319   ;;
1320   --disable-tools) want_tools="no"
1321   ;;
1322   --enable-seccomp) seccomp="yes"
1323   ;;
1324   --disable-seccomp) seccomp="no"
1325   ;;
1326   --disable-glusterfs) glusterfs="no"
1327   ;;
1328   --disable-avx2) avx2_opt="no"
1329   ;;
1330   --enable-avx2) avx2_opt="yes"
1331   ;;
1332   --disable-avx512f) avx512f_opt="no"
1333   ;;
1334   --enable-avx512f) avx512f_opt="yes"
1335   ;;
1336
1337   --enable-glusterfs) glusterfs="yes"
1338   ;;
1339   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1340       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1341   ;;
1342   --enable-vhdx|--disable-vhdx)
1343       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1344   ;;
1345   --enable-uuid|--disable-uuid)
1346       echo "$0: $opt is obsolete, UUID support is always built" >&2
1347   ;;
1348   --disable-gtk) gtk="no"
1349   ;;
1350   --enable-gtk) gtk="yes"
1351   ;;
1352   --tls-priority=*) tls_priority="$optarg"
1353   ;;
1354   --disable-gnutls) gnutls="no"
1355   ;;
1356   --enable-gnutls) gnutls="yes"
1357   ;;
1358   --disable-nettle) nettle="no"
1359   ;;
1360   --enable-nettle) nettle="yes"
1361   ;;
1362   --disable-gcrypt) gcrypt="no"
1363   ;;
1364   --enable-gcrypt) gcrypt="yes"
1365   ;;
1366   --disable-auth-pam) auth_pam="no"
1367   ;;
1368   --enable-auth-pam) auth_pam="yes"
1369   ;;
1370   --enable-rdma) rdma="yes"
1371   ;;
1372   --disable-rdma) rdma="no"
1373   ;;
1374   --enable-pvrdma) pvrdma="yes"
1375   ;;
1376   --disable-pvrdma) pvrdma="no"
1377   ;;
1378   --disable-vte) vte="no"
1379   ;;
1380   --enable-vte) vte="yes"
1381   ;;
1382   --disable-virglrenderer) virglrenderer="no"
1383   ;;
1384   --enable-virglrenderer) virglrenderer="yes"
1385   ;;
1386   --disable-tpm) tpm="no"
1387   ;;
1388   --enable-tpm) tpm="yes"
1389   ;;
1390   --disable-libssh) libssh="no"
1391   ;;
1392   --enable-libssh) libssh="yes"
1393   ;;
1394   --disable-live-block-migration) live_block_migration="no"
1395   ;;
1396   --enable-live-block-migration) live_block_migration="yes"
1397   ;;
1398   --disable-numa) numa="no"
1399   ;;
1400   --enable-numa) numa="yes"
1401   ;;
1402   --disable-libxml2) libxml2="no"
1403   ;;
1404   --enable-libxml2) libxml2="yes"
1405   ;;
1406   --disable-tcmalloc) tcmalloc="no"
1407   ;;
1408   --enable-tcmalloc) tcmalloc="yes"
1409   ;;
1410   --disable-jemalloc) jemalloc="no"
1411   ;;
1412   --enable-jemalloc) jemalloc="yes"
1413   ;;
1414   --disable-replication) replication="no"
1415   ;;
1416   --enable-replication) replication="yes"
1417   ;;
1418   --disable-bochs) bochs="no"
1419   ;;
1420   --enable-bochs) bochs="yes"
1421   ;;
1422   --disable-cloop) cloop="no"
1423   ;;
1424   --enable-cloop) cloop="yes"
1425   ;;
1426   --disable-dmg) dmg="no"
1427   ;;
1428   --enable-dmg) dmg="yes"
1429   ;;
1430   --disable-qcow1) qcow1="no"
1431   ;;
1432   --enable-qcow1) qcow1="yes"
1433   ;;
1434   --disable-vdi) vdi="no"
1435   ;;
1436   --enable-vdi) vdi="yes"
1437   ;;
1438   --disable-vvfat) vvfat="no"
1439   ;;
1440   --enable-vvfat) vvfat="yes"
1441   ;;
1442   --disable-qed) qed="no"
1443   ;;
1444   --enable-qed) qed="yes"
1445   ;;
1446   --disable-parallels) parallels="no"
1447   ;;
1448   --enable-parallels) parallels="yes"
1449   ;;
1450   --disable-sheepdog) sheepdog="no"
1451   ;;
1452   --enable-sheepdog) sheepdog="yes"
1453   ;;
1454   --disable-vhost-user) vhost_user="no"
1455   ;;
1456   --enable-vhost-user) vhost_user="yes"
1457   ;;
1458   --disable-vhost-vdpa) vhost_vdpa="no"
1459   ;;
1460   --enable-vhost-vdpa) vhost_vdpa="yes"
1461   ;;
1462   --disable-vhost-kernel) vhost_kernel="no"
1463   ;;
1464   --enable-vhost-kernel) vhost_kernel="yes"
1465   ;;
1466   --disable-capstone) capstone="disabled"
1467   ;;
1468   --enable-capstone) capstone="enabled"
1469   ;;
1470   --enable-capstone=git) capstone="internal"
1471   ;;
1472   --enable-capstone=system) capstone="system"
1473   ;;
1474   --with-git=*) git="$optarg"
1475   ;;
1476   --enable-git-update) git_update=yes
1477   ;;
1478   --disable-git-update) git_update=no
1479   ;;
1480   --enable-debug-mutex) debug_mutex=yes
1481   ;;
1482   --disable-debug-mutex) debug_mutex=no
1483   ;;
1484   --enable-libpmem) libpmem=yes
1485   ;;
1486   --disable-libpmem) libpmem=no
1487   ;;
1488   --enable-xkbcommon) xkbcommon="enabled"
1489   ;;
1490   --disable-xkbcommon) xkbcommon="disabled"
1491   ;;
1492   --enable-plugins) plugins="yes"
1493   ;;
1494   --disable-plugins) plugins="no"
1495   ;;
1496   --enable-containers) use_containers="yes"
1497   ;;
1498   --disable-containers) use_containers="no"
1499   ;;
1500   --enable-fuzzing) fuzzing=yes
1501   ;;
1502   --disable-fuzzing) fuzzing=no
1503   ;;
1504   --gdb=*) gdb_bin="$optarg"
1505   ;;
1506   --enable-rng-none) rng_none=yes
1507   ;;
1508   --disable-rng-none) rng_none=no
1509   ;;
1510   --enable-keyring) secret_keyring="yes"
1511   ;;
1512   --disable-keyring) secret_keyring="no"
1513   ;;
1514   --enable-libdaxctl) libdaxctl=yes
1515   ;;
1516   --disable-libdaxctl) libdaxctl=no
1517   ;;
1518   *)
1519       echo "ERROR: unknown option $opt"
1520       echo "Try '$0 --help' for more information"
1521       exit 1
1522   ;;
1523   esac
1524 done
1525
1526 libdir="${libdir:-$prefix/lib}"
1527 libexecdir="${libexecdir:-$prefix/libexec}"
1528 includedir="${includedir:-$prefix/include}"
1529
1530 if test "$mingw32" = "yes" ; then
1531     mandir="$prefix"
1532     datadir="$prefix"
1533     docdir="$prefix"
1534     bindir="$prefix"
1535     sysconfdir="$prefix"
1536     local_statedir="$prefix"
1537 else
1538     mandir="${mandir:-$prefix/share/man}"
1539     datadir="${datadir:-$prefix/share}"
1540     docdir="${docdir:-$prefix/share/doc}"
1541     bindir="${bindir:-$prefix/bin}"
1542     sysconfdir="${sysconfdir:-$prefix/etc}"
1543     local_statedir="${local_statedir:-$prefix/var}"
1544 fi
1545 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1546 localedir="${localedir:-$datadir/locale}"
1547
1548 case "$cpu" in
1549     ppc)
1550            CPU_CFLAGS="-m32"
1551            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1552            ;;
1553     ppc64)
1554            CPU_CFLAGS="-m64"
1555            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1556            ;;
1557     sparc)
1558            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1559            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1560            ;;
1561     sparc64)
1562            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1563            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1564            ;;
1565     s390)
1566            CPU_CFLAGS="-m31"
1567            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1568            ;;
1569     s390x)
1570            CPU_CFLAGS="-m64"
1571            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1572            ;;
1573     i386)
1574            CPU_CFLAGS="-m32"
1575            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1576            ;;
1577     x86_64)
1578            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1579            # If we truly care, we should simply detect this case at
1580            # runtime and generate the fallback to serial emulation.
1581            CPU_CFLAGS="-m64 -mcx16"
1582            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1583            ;;
1584     x32)
1585            CPU_CFLAGS="-mx32"
1586            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1587            ;;
1588     # No special flags required for other host CPUs
1589 esac
1590
1591 eval "cross_cc_${cpu}=\$host_cc"
1592 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1593 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1594
1595 # For user-mode emulation the host arch has to be one we explicitly
1596 # support, even if we're using TCI.
1597 if [ "$ARCH" = "unknown" ]; then
1598   bsd_user="no"
1599   linux_user="no"
1600 fi
1601
1602 default_target_list=""
1603 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
1604 deprecated_features=""
1605 mak_wilds=""
1606
1607 if [ "$softmmu" = "yes" ]; then
1608     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1609 fi
1610 if [ "$linux_user" = "yes" ]; then
1611     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1612 fi
1613 if [ "$bsd_user" = "yes" ]; then
1614     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1615 fi
1616
1617 # If the user doesn't explicitly specify a deprecated target we will
1618 # skip it.
1619 if test -z "$target_list"; then
1620     if test -z "$target_list_exclude"; then
1621         target_list_exclude="$deprecated_targets_list"
1622     else
1623         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1624     fi
1625 fi
1626
1627 for config in $mak_wilds; do
1628     target="$(basename "$config" .mak)"
1629     if echo "$target_list_exclude" | grep -vq "$target"; then
1630         default_target_list="${default_target_list} $target"
1631     fi
1632 done
1633
1634 # Enumerate public trace backends for --help output
1635 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1636
1637 if test x"$show_help" = x"yes" ; then
1638 cat << EOF
1639
1640 Usage: configure [options]
1641 Options: [defaults in brackets after descriptions]
1642
1643 Standard options:
1644   --help                   print this message
1645   --prefix=PREFIX          install in PREFIX [$prefix]
1646   --interp-prefix=PREFIX   where to find shared libraries, etc.
1647                            use %M for cpu name [$interp_prefix]
1648   --target-list=LIST       set target list (default: build everything)
1649 $(echo Available targets: $default_target_list | \
1650   fold -s -w 53 | sed -e 's/^/                           /')
1651   --target-list-exclude=LIST exclude a set of targets from the default target-list
1652
1653 Advanced options (experts only):
1654   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1655   --cc=CC                  use C compiler CC [$cc]
1656   --iasl=IASL              use ACPI compiler IASL [$iasl]
1657   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1658                            build time
1659   --cxx=CXX                use C++ compiler CXX [$cxx]
1660   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1661   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1662   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1663   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1664   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1665   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1666   --make=MAKE              use specified make [$make]
1667   --python=PYTHON          use specified python [$python]
1668   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1669   --meson=MESON            use specified meson [$meson]
1670   --ninja=NINJA            use specified ninja [$ninja]
1671   --smbd=SMBD              use specified smbd [$smbd]
1672   --with-git=GIT           use specified git [$git]
1673   --static                 enable static build [$static]
1674   --mandir=PATH            install man pages in PATH
1675   --datadir=PATH           install firmware in PATH/$qemu_suffix
1676   --localedir=PATH         install translation in PATH/$qemu_suffix
1677   --docdir=PATH            install documentation in PATH/$qemu_suffix
1678   --bindir=PATH            install binaries in PATH
1679   --libdir=PATH            install libraries in PATH
1680   --libexecdir=PATH        install helper binaries in PATH
1681   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1682   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1683   --firmwarepath=PATH      search PATH for firmware files
1684   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1685   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1686   --with-pkgversion=VERS   use specified string as sub-version of the package
1687   --enable-debug           enable common debug build options
1688   --enable-sanitizers      enable default sanitizers
1689   --enable-tsan            enable thread sanitizer
1690   --disable-strip          disable stripping binaries
1691   --disable-werror         disable compilation abort on warning
1692   --disable-stack-protector disable compiler-provided stack protection
1693   --audio-drv-list=LIST    set audio drivers list:
1694                            Available drivers: $audio_possible_drivers
1695   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1696   --block-drv-rw-whitelist=L
1697                            set block driver read-write whitelist
1698                            (affects only QEMU, not qemu-img)
1699   --block-drv-ro-whitelist=L
1700                            set block driver read-only whitelist
1701                            (affects only QEMU, not qemu-img)
1702   --enable-trace-backends=B Set trace backend
1703                            Available backends: $trace_backend_list
1704   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1705                            Default:trace-<pid>
1706   --disable-slirp          disable SLIRP userspace network connectivity
1707   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1708   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1709   --oss-lib                path to OSS library
1710   --cpu=CPU                Build for host CPU [$cpu]
1711   --with-coroutine=BACKEND coroutine backend. Supported options:
1712                            ucontext, sigaltstack, windows
1713   --enable-gcov            enable test coverage analysis with gcov
1714   --disable-blobs          disable installing provided firmware blobs
1715   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1716   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1717   --tls-priority           default TLS protocol/cipher priority string
1718   --enable-gprof           QEMU profiling with gprof
1719   --enable-profiler        profiler support
1720   --enable-debug-stack-usage
1721                            track the maximum stack usage of stacks created by qemu_alloc_stack
1722   --enable-plugins
1723                            enable plugins via shared library loading
1724   --disable-containers     don't use containers for cross-building
1725   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1726
1727 Optional features, enabled with --enable-FEATURE and
1728 disabled with --disable-FEATURE, default is enabled if available:
1729
1730   system          all system emulation targets
1731   user            supported user emulation targets
1732   linux-user      all linux usermode emulation targets
1733   bsd-user        all BSD usermode emulation targets
1734   docs            build documentation
1735   guest-agent     build the QEMU Guest Agent
1736   guest-agent-msi build guest agent Windows MSI installation package
1737   pie             Position Independent Executables
1738   modules         modules support (non-Windows)
1739   module-upgrades try to load modules from alternate paths for upgrades
1740   debug-tcg       TCG debugging (default is disabled)
1741   debug-info      debugging information
1742   sparse          sparse checker
1743   safe-stack      SafeStack Stack Smash Protection. Depends on
1744                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1745
1746   gnutls          GNUTLS cryptography support
1747   nettle          nettle cryptography support
1748   gcrypt          libgcrypt cryptography support
1749   auth-pam        PAM access control
1750   sdl             SDL UI
1751   sdl-image       SDL Image support for icons
1752   gtk             gtk UI
1753   vte             vte support for the gtk UI
1754   curses          curses UI
1755   iconv           font glyph conversion support
1756   vnc             VNC UI support
1757   vnc-sasl        SASL encryption for VNC server
1758   vnc-jpeg        JPEG lossy compression for VNC server
1759   vnc-png         PNG compression for VNC server
1760   cocoa           Cocoa UI (Mac OS X only)
1761   virtfs          VirtFS
1762   libudev         Use libudev to enumerate host devices
1763   mpath           Multipath persistent reservation passthrough
1764   xen             xen backend driver support
1765   xen-pci-passthrough    PCI passthrough support for Xen
1766   brlapi          BrlAPI (Braile)
1767   curl            curl connectivity
1768   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1769   fdt             fdt device tree
1770   kvm             KVM acceleration support
1771   hax             HAX acceleration support
1772   hvf             Hypervisor.framework acceleration support
1773   whpx            Windows Hypervisor Platform acceleration support
1774   rdma            Enable RDMA-based migration
1775   pvrdma          Enable PVRDMA support
1776   vde             support for vde network
1777   netmap          support for netmap network
1778   linux-aio       Linux AIO support
1779   linux-io-uring  Linux io_uring support
1780   cap-ng          libcap-ng support
1781   attr            attr and xattr support
1782   vhost-net       vhost-net kernel acceleration support
1783   vhost-vsock     virtio sockets device support
1784   vhost-scsi      vhost-scsi kernel target support
1785   vhost-crypto    vhost-user-crypto backend support
1786   vhost-kernel    vhost kernel backend support
1787   vhost-user      vhost-user backend support
1788   vhost-vdpa      vhost-vdpa kernel backend support
1789   spice           spice
1790   rbd             rados block device (rbd)
1791   libiscsi        iscsi support
1792   libnfs          nfs support
1793   smartcard       smartcard support (libcacard)
1794   u2f             U2F support (u2f-emu)
1795   libusb          libusb (for usb passthrough)
1796   live-block-migration   Block migration in the main migration stream
1797   usb-redir       usb network redirection support
1798   lzo             support of lzo compression library
1799   snappy          support of snappy compression library
1800   bzip2           support of bzip2 compression library
1801                   (for reading bzip2-compressed dmg images)
1802   lzfse           support of lzfse compression library
1803                   (for reading lzfse-compressed dmg images)
1804   zstd            support for zstd compression library
1805                   (for migration compression and qcow2 cluster compression)
1806   seccomp         seccomp support
1807   coroutine-pool  coroutine freelist (better performance)
1808   glusterfs       GlusterFS backend
1809   tpm             TPM support
1810   libssh          ssh block device support
1811   numa            libnuma support
1812   libxml2         for Parallels image format
1813   tcmalloc        tcmalloc support
1814   jemalloc        jemalloc support
1815   avx2            AVX2 optimization support
1816   avx512f         AVX512F optimization support
1817   replication     replication support
1818   opengl          opengl support
1819   virglrenderer   virgl rendering support
1820   xfsctl          xfsctl support
1821   qom-cast-debug  cast debugging support
1822   tools           build qemu-io, qemu-nbd and qemu-img tools
1823   bochs           bochs image format support
1824   cloop           cloop image format support
1825   dmg             dmg image format support
1826   qcow1           qcow v1 image format support
1827   vdi             vdi image format support
1828   vvfat           vvfat image format support
1829   qed             qed image format support
1830   parallels       parallels image format support
1831   sheepdog        sheepdog block driver support (deprecated)
1832   crypto-afalg    Linux AF_ALG crypto backend driver
1833   capstone        capstone disassembler support
1834   debug-mutex     mutex debugging support
1835   libpmem         libpmem support
1836   xkbcommon       xkbcommon support
1837   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1838   libdaxctl       libdaxctl support
1839
1840 NOTE: The object files are built at the place where configure is launched
1841 EOF
1842 exit 0
1843 fi
1844
1845 # Remove old dependency files to make sure that they get properly regenerated
1846 rm -f */config-devices.mak.d
1847
1848 if test -z "$python"
1849 then
1850     error_exit "Python not found. Use --python=/path/to/python"
1851 fi
1852
1853 # Note that if the Python conditional here evaluates True we will exit
1854 # with status 1 which is a shell 'false' value.
1855 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1856   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1857       "Use --python=/path/to/python to specify a supported Python."
1858 fi
1859
1860 # Preserve python version since some functionality is dependent on it
1861 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)
1862
1863 # Suppress writing compiled files
1864 python="$python -B"
1865
1866 if test -z "$meson"; then
1867     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1868         meson=meson
1869     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1870         meson=git
1871     elif test -e "${source_path}/meson/meson.py" ; then
1872         meson=internal
1873     else
1874         if test "$explicit_python" = yes; then
1875             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1876         else
1877             error_exit "Meson not found.  Use --meson=/path/to/meson"
1878         fi
1879     fi
1880 else
1881     # Meson uses its own Python interpreter to invoke other Python scripts,
1882     # but the user wants to use the one they specified with --python.
1883     #
1884     # We do not want to override the distro Python interpreter (and sometimes
1885     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1886     # just require --meson=git|internal together with --python.
1887     if test "$explicit_python" = yes; then
1888         case "$meson" in
1889             git | internal) ;;
1890             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1891         esac
1892     fi
1893 fi
1894
1895 if test "$meson" = git; then
1896     git_submodules="${git_submodules} meson"
1897 fi
1898
1899 case "$meson" in
1900     git | internal)
1901         if ! $python -c 'import pkg_resources' > /dev/null 2>&1; then
1902             error_exit "Python setuptools not found"
1903         fi
1904         meson="$python ${source_path}/meson/meson.py"
1905         ;;
1906     *) meson=$(command -v "$meson") ;;
1907 esac
1908
1909 # Probe for ninja
1910
1911 if test -z "$ninja"; then
1912     for c in ninja ninja-build samu; do
1913         if has $c; then
1914             ninja=$(command -v "$c")
1915             break
1916         fi
1917     done
1918     if test -z "$ninja"; then
1919       error_exit "Cannot find Ninja"
1920     fi
1921 fi
1922
1923 # Check that the C compiler works. Doing this here before testing
1924 # the host CPU ensures that we had a valid CC to autodetect the
1925 # $cpu var (and we should bail right here if that's not the case).
1926 # It also allows the help message to be printed without a CC.
1927 write_c_skeleton;
1928 if compile_object ; then
1929   : C compiler works ok
1930 else
1931     error_exit "\"$cc\" either does not exist or does not work"
1932 fi
1933 if ! compile_prog ; then
1934     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1935 fi
1936
1937 # Consult white-list to determine whether to enable werror
1938 # by default.  Only enable by default for git builds
1939 if test -z "$werror" ; then
1940     if test -e "$source_path/.git" && \
1941         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1942         werror="yes"
1943     else
1944         werror="no"
1945     fi
1946 fi
1947
1948 if test "$bogus_os" = "yes"; then
1949     # Now that we know that we're not printing the help and that
1950     # the compiler works (so the results of the check_defines we used
1951     # to identify the OS are reliable), if we didn't recognize the
1952     # host OS we should stop now.
1953     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1954 fi
1955
1956 # Check whether the compiler matches our minimum requirements:
1957 cat > $TMPC << EOF
1958 #if defined(__clang_major__) && defined(__clang_minor__)
1959 # ifdef __apple_build_version__
1960 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
1961 #   error You need at least XCode Clang v5.1 to compile QEMU
1962 #  endif
1963 # else
1964 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
1965 #   error You need at least Clang v3.4 to compile QEMU
1966 #  endif
1967 # endif
1968 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1969 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
1970 #  error You need at least GCC v4.8 to compile QEMU
1971 # endif
1972 #else
1973 # error You either need GCC or Clang to compiler QEMU
1974 #endif
1975 int main (void) { return 0; }
1976 EOF
1977 if ! compile_prog "" "" ; then
1978     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
1979 fi
1980
1981 # Accumulate -Wfoo and -Wno-bar separately.
1982 # We will list all of the enable flags first, and the disable flags second.
1983 # Note that we do not add -Werror, because that would enable it for all
1984 # configure tests. If a configure test failed due to -Werror this would
1985 # just silently disable some features, so it's too error prone.
1986
1987 warn_flags=
1988 add_to warn_flags -Wold-style-declaration
1989 add_to warn_flags -Wold-style-definition
1990 add_to warn_flags -Wtype-limits
1991 add_to warn_flags -Wformat-security
1992 add_to warn_flags -Wformat-y2k
1993 add_to warn_flags -Winit-self
1994 add_to warn_flags -Wignored-qualifiers
1995 add_to warn_flags -Wempty-body
1996 add_to warn_flags -Wnested-externs
1997 add_to warn_flags -Wendif-labels
1998 add_to warn_flags -Wexpansion-to-defined
1999
2000 nowarn_flags=
2001 add_to nowarn_flags -Wno-initializer-overrides
2002 add_to nowarn_flags -Wno-missing-include-dirs
2003 add_to nowarn_flags -Wno-shift-negative-value
2004 add_to nowarn_flags -Wno-string-plus-int
2005 add_to nowarn_flags -Wno-typedef-redefinition
2006 add_to nowarn_flags -Wno-tautological-type-limit-compare
2007 add_to nowarn_flags -Wno-psabi
2008
2009 gcc_flags="$warn_flags $nowarn_flags"
2010
2011 cc_has_warning_flag() {
2012     write_c_skeleton;
2013
2014     # Use the positive sense of the flag when testing for -Wno-wombat
2015     # support (gcc will happily accept the -Wno- form of unknown
2016     # warning options).
2017     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2018     compile_prog "-Werror $optflag" ""
2019 }
2020
2021 for flag in $gcc_flags; do
2022     if cc_has_warning_flag $flag ; then
2023         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2024     fi
2025 done
2026
2027 if test "$stack_protector" != "no"; then
2028   cat > $TMPC << EOF
2029 int main(int argc, char *argv[])
2030 {
2031     char arr[64], *p = arr, *c = argv[0];
2032     while (*c) {
2033         *p++ = *c++;
2034     }
2035     return 0;
2036 }
2037 EOF
2038   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2039   sp_on=0
2040   for flag in $gcc_flags; do
2041     # We need to check both a compile and a link, since some compiler
2042     # setups fail only on a .c->.o compile and some only at link time
2043     if compile_object "-Werror $flag" &&
2044        compile_prog "-Werror $flag" ""; then
2045       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2046       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2047       sp_on=1
2048       break
2049     fi
2050   done
2051   if test "$stack_protector" = yes; then
2052     if test $sp_on = 0; then
2053       error_exit "Stack protector not supported"
2054     fi
2055   fi
2056 fi
2057
2058 # Disable -Wmissing-braces on older compilers that warn even for
2059 # the "universal" C zero initializer {0}.
2060 cat > $TMPC << EOF
2061 struct {
2062   int a[2];
2063 } x = {0};
2064 EOF
2065 if compile_object "-Werror" "" ; then
2066   :
2067 else
2068   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2069 fi
2070
2071 # Our module code doesn't support Windows
2072 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2073   error_exit "Modules are not available for Windows"
2074 fi
2075
2076 # module_upgrades is only reasonable if modules are enabled
2077 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2078   error_exit "Can't enable module-upgrades as Modules are not enabled"
2079 fi
2080
2081 # Static linking is not possible with modules or PIE
2082 if test "$static" = "yes" ; then
2083   if test "$modules" = "yes" ; then
2084     error_exit "static and modules are mutually incompatible"
2085   fi
2086 fi
2087
2088 # Unconditional check for compiler __thread support
2089   cat > $TMPC << EOF
2090 static __thread int tls_var;
2091 int main(void) { return tls_var; }
2092 EOF
2093
2094 if ! compile_prog "-Werror" "" ; then
2095     error_exit "Your compiler does not support the __thread specifier for " \
2096         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2097 fi
2098
2099 cat > $TMPC << EOF
2100
2101 #ifdef __linux__
2102 #  define THREAD __thread
2103 #else
2104 #  define THREAD
2105 #endif
2106 static THREAD int tls_var;
2107 int main(void) { return tls_var; }
2108 EOF
2109
2110 # Check we support --no-pie first; we will need this for building ROMs.
2111 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2112   CFLAGS_NOPIE="-fno-pie"
2113   LDFLAGS_NOPIE="-no-pie"
2114 fi
2115
2116 if test "$static" = "yes"; then
2117   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2118     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2119     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2120     pie="yes"
2121   elif test "$pie" = "yes"; then
2122     error_exit "-static-pie not available due to missing toolchain support"
2123   else
2124     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2125     pie="no"
2126   fi
2127 elif test "$pie" = "no"; then
2128   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2129   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
2130 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2131   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2132   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2133   pie="yes"
2134 elif test "$pie" = "yes"; then
2135   error_exit "PIE not available due to missing toolchain support"
2136 else
2137   echo "Disabling PIE due to missing toolchain support"
2138   pie="no"
2139 fi
2140
2141 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2142 # The combination is known as "full relro", because .got.plt is read-only too.
2143 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2144   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2145 fi
2146
2147 ##########################################
2148 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2149 # use i686 as default anyway, but for those that don't, an explicit
2150 # specification is necessary
2151
2152 if test "$cpu" = "i386"; then
2153   cat > $TMPC << EOF
2154 static int sfaa(int *ptr)
2155 {
2156   return __sync_fetch_and_and(ptr, 0);
2157 }
2158
2159 int main(void)
2160 {
2161   int val = 42;
2162   val = __sync_val_compare_and_swap(&val, 0, 1);
2163   sfaa(&val);
2164   return val;
2165 }
2166 EOF
2167   if ! compile_prog "" "" ; then
2168     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2169   fi
2170 fi
2171
2172 #########################################
2173 # Solaris specific configure tool chain decisions
2174
2175 if test "$solaris" = "yes" ; then
2176   if has ar; then
2177     :
2178   else
2179     if test -f /usr/ccs/bin/ar ; then
2180       error_exit "No path includes ar" \
2181           "Add /usr/ccs/bin to your path and rerun configure"
2182     fi
2183     error_exit "No path includes ar"
2184   fi
2185 fi
2186
2187 if test -z "${target_list+xxx}" ; then
2188     default_targets=yes
2189     for target in $default_target_list; do
2190         target_list="$target_list $target"
2191     done
2192     target_list="${target_list# }"
2193 else
2194     default_targets=no
2195     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2196     for target in $target_list; do
2197         # Check that we recognised the target name; this allows a more
2198         # friendly error message than if we let it fall through.
2199         case " $default_target_list " in
2200             *" $target "*)
2201                 ;;
2202             *)
2203                 error_exit "Unknown target name '$target'"
2204                 ;;
2205         esac
2206     done
2207 fi
2208
2209 for target in $target_list; do
2210     # if a deprecated target is enabled we note it here
2211     if echo "$deprecated_targets_list" | grep -q "$target"; then
2212         add_to deprecated_features $target
2213     fi
2214 done
2215
2216 # see if system emulation was really requested
2217 case " $target_list " in
2218   *"-softmmu "*) softmmu=yes
2219   ;;
2220   *) softmmu=no
2221   ;;
2222 esac
2223
2224 for target in $target_list; do
2225   case "$target" in
2226     arm-softmmu | aarch64-softmmu | i386-softmmu | x86_64-softmmu)
2227       edk2_blobs="yes"
2228       ;;
2229   esac
2230 done
2231 # The EDK2 binaries are compressed with bzip2
2232 if test "$edk2_blobs" = "yes" && ! has bzip2; then
2233   error_exit "The bzip2 program is required for building QEMU"
2234 fi
2235
2236 feature_not_found() {
2237   feature=$1
2238   remedy=$2
2239
2240   error_exit "User requested feature $feature" \
2241       "configure was not able to find it." \
2242       "$remedy"
2243 }
2244
2245 # ---
2246 # big/little endian test
2247 cat > $TMPC << EOF
2248 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2249 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2250 extern int foo(short *, short *);
2251 int main(int argc, char *argv[]) {
2252     return foo(big_endian, little_endian);
2253 }
2254 EOF
2255
2256 if compile_object ; then
2257     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2258         bigendian="yes"
2259     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2260         bigendian="no"
2261     else
2262         echo big/little test failed
2263     fi
2264 else
2265     echo big/little test failed
2266 fi
2267
2268 ##########################################
2269 # system tools
2270 if test -z "$want_tools"; then
2271     if test "$softmmu" = "no"; then
2272         want_tools=no
2273     else
2274         want_tools=yes
2275     fi
2276 fi
2277
2278 ##########################################
2279 # cocoa implies not SDL or GTK
2280 # (the cocoa UI code currently assumes it is always the active UI
2281 # and doesn't interact well with other UI frontend code)
2282 if test "$cocoa" = "enabled"; then
2283     if test "$sdl" = "enabled"; then
2284         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2285     fi
2286     if test "$gtk" = "yes"; then
2287         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2288     fi
2289     gtk=no
2290     sdl=disabled
2291 fi
2292
2293 # Some versions of Mac OS X incorrectly define SIZE_MAX
2294 cat > $TMPC << EOF
2295 #include <stdint.h>
2296 #include <stdio.h>
2297 int main(int argc, char *argv[]) {
2298     return printf("%zu", SIZE_MAX);
2299 }
2300 EOF
2301 have_broken_size_max=no
2302 if ! compile_object -Werror ; then
2303     have_broken_size_max=yes
2304 fi
2305
2306 ##########################################
2307 # L2TPV3 probe
2308
2309 cat > $TMPC <<EOF
2310 #include <sys/socket.h>
2311 #include <linux/ip.h>
2312 int main(void) { return sizeof(struct mmsghdr); }
2313 EOF
2314 if compile_prog "" "" ; then
2315   l2tpv3=yes
2316 else
2317   l2tpv3=no
2318 fi
2319
2320 if check_include "pty.h" ; then
2321   pty_h=yes
2322 else
2323   pty_h=no
2324 fi
2325
2326 cat > $TMPC <<EOF
2327 #include <sys/mman.h>
2328 int main(int argc, char *argv[]) {
2329     return mlockall(MCL_FUTURE);
2330 }
2331 EOF
2332 if compile_prog "" "" ; then
2333   have_mlockall=yes
2334 else
2335   have_mlockall=no
2336 fi
2337
2338 #########################################
2339 # vhost interdependencies and host support
2340
2341 # vhost backends
2342 test "$vhost_user" = "" && vhost_user=yes
2343 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2344   error_exit "vhost-user isn't available on win32"
2345 fi
2346 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2347 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2348   error_exit "vhost-vdpa is only available on Linux"
2349 fi
2350 test "$vhost_kernel" = "" && vhost_kernel=$linux
2351 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2352   error_exit "vhost-kernel is only available on Linux"
2353 fi
2354
2355 # vhost-kernel devices
2356 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2357 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2358   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2359 fi
2360 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2361 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2362   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2363 fi
2364
2365 # vhost-user backends
2366 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2367 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2368   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2369 fi
2370 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2371 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2372   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2373 fi
2374 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2375 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2376   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2377 fi
2378 #vhost-vdpa backends
2379 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2380 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2381   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2382 fi
2383
2384 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2385 if test "$vhost_net" = ""; then
2386   test "$vhost_net_user" = "yes" && vhost_net=yes
2387   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2388   test "$vhost_kernel" = "yes" && vhost_net=yes
2389 fi
2390
2391 ##########################################
2392 # pkg-config probe
2393
2394 if ! has "$pkg_config_exe"; then
2395   error_exit "pkg-config binary '$pkg_config_exe' not found"
2396 fi
2397
2398 ##########################################
2399 # NPTL probe
2400
2401 if test "$linux_user" = "yes"; then
2402   cat > $TMPC <<EOF
2403 #include <sched.h>
2404 #include <linux/futex.h>
2405 int main(void) {
2406 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2407 #error bork
2408 #endif
2409   return 0;
2410 }
2411 EOF
2412   if ! compile_object ; then
2413     feature_not_found "nptl" "Install glibc and linux kernel headers."
2414   fi
2415 fi
2416
2417 ##########################################
2418 # lzo check
2419
2420 if test "$lzo" != "no" ; then
2421     cat > $TMPC << EOF
2422 #include <lzo/lzo1x.h>
2423 int main(void) { lzo_version(); return 0; }
2424 EOF
2425     if compile_prog "" "-llzo2" ; then
2426         lzo_libs="-llzo2"
2427         lzo="yes"
2428     else
2429         if test "$lzo" = "yes"; then
2430             feature_not_found "liblzo2" "Install liblzo2 devel"
2431         fi
2432         lzo="no"
2433     fi
2434 fi
2435
2436 ##########################################
2437 # snappy check
2438
2439 if test "$snappy" != "no" ; then
2440     cat > $TMPC << EOF
2441 #include <snappy-c.h>
2442 int main(void) { snappy_max_compressed_length(4096); return 0; }
2443 EOF
2444     if compile_prog "" "-lsnappy" ; then
2445         snappy_libs='-lsnappy'
2446         snappy="yes"
2447     else
2448         if test "$snappy" = "yes"; then
2449             feature_not_found "libsnappy" "Install libsnappy devel"
2450         fi
2451         snappy="no"
2452     fi
2453 fi
2454
2455 ##########################################
2456 # bzip2 check
2457
2458 if test "$bzip2" != "no" ; then
2459     cat > $TMPC << EOF
2460 #include <bzlib.h>
2461 int main(void) { BZ2_bzlibVersion(); return 0; }
2462 EOF
2463     if compile_prog "" "-lbz2" ; then
2464         bzip2="yes"
2465     else
2466         if test "$bzip2" = "yes"; then
2467             feature_not_found "libbzip2" "Install libbzip2 devel"
2468         fi
2469         bzip2="no"
2470     fi
2471 fi
2472
2473 ##########################################
2474 # lzfse check
2475
2476 if test "$lzfse" != "no" ; then
2477     cat > $TMPC << EOF
2478 #include <lzfse.h>
2479 int main(void) { lzfse_decode_scratch_size(); return 0; }
2480 EOF
2481     if compile_prog "" "-llzfse" ; then
2482         lzfse="yes"
2483     else
2484         if test "$lzfse" = "yes"; then
2485             feature_not_found "lzfse" "Install lzfse devel"
2486         fi
2487         lzfse="no"
2488     fi
2489 fi
2490
2491 ##########################################
2492 # zstd check
2493
2494 if test "$zstd" != "no" ; then
2495     libzstd_minver="1.4.0"
2496     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2497         zstd_cflags="$($pkg_config --cflags libzstd)"
2498         zstd_libs="$($pkg_config --libs libzstd)"
2499         zstd="yes"
2500     else
2501         if test "$zstd" = "yes" ; then
2502             feature_not_found "libzstd" "Install libzstd devel"
2503         fi
2504         zstd="no"
2505     fi
2506 fi
2507
2508 ##########################################
2509 # libseccomp check
2510
2511 if test "$seccomp" != "no" ; then
2512     libseccomp_minver="2.3.0"
2513     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2514         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2515         seccomp_libs="$($pkg_config --libs libseccomp)"
2516         seccomp="yes"
2517     else
2518         if test "$seccomp" = "yes" ; then
2519             feature_not_found "libseccomp" \
2520                  "Install libseccomp devel >= $libseccomp_minver"
2521         fi
2522         seccomp="no"
2523     fi
2524 fi
2525
2526 ##########################################
2527 # xen probe
2528
2529 if test "$xen" != "disabled" ; then
2530   # Check whether Xen library path is specified via --extra-ldflags to avoid
2531   # overriding this setting with pkg-config output. If not, try pkg-config
2532   # to obtain all needed flags.
2533
2534   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2535      $pkg_config --exists xencontrol ; then
2536     xen_ctrl_version="$(printf '%d%02d%02d' \
2537       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2538     xen=enabled
2539     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2540     xen_pc="$xen_pc xenevtchn xendevicemodel"
2541     if $pkg_config --exists xentoolcore; then
2542       xen_pc="$xen_pc xentoolcore"
2543     fi
2544     xen_cflags="$($pkg_config --cflags $xen_pc)"
2545     xen_libs="$($pkg_config --libs $xen_pc)"
2546   else
2547
2548     xen_libs="-lxenstore -lxenctrl"
2549     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2550
2551     # First we test whether Xen headers and libraries are available.
2552     # If no, we are done and there is no Xen support.
2553     # If yes, more tests are run to detect the Xen version.
2554
2555     # Xen (any)
2556     cat > $TMPC <<EOF
2557 #include <xenctrl.h>
2558 int main(void) {
2559   return 0;
2560 }
2561 EOF
2562     if ! compile_prog "" "$xen_libs" ; then
2563       # Xen not found
2564       if test "$xen" = "enabled" ; then
2565         feature_not_found "xen" "Install xen devel"
2566       fi
2567       xen=disabled
2568
2569     # Xen unstable
2570     elif
2571         cat > $TMPC <<EOF &&
2572 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2573 #define __XEN_TOOLS__
2574 #include <xendevicemodel.h>
2575 #include <xenforeignmemory.h>
2576 int main(void) {
2577   xendevicemodel_handle *xd;
2578   xenforeignmemory_handle *xfmem;
2579
2580   xd = xendevicemodel_open(0, 0);
2581   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2582
2583   xfmem = xenforeignmemory_open(0, 0);
2584   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2585
2586   return 0;
2587 }
2588 EOF
2589         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2590       then
2591       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2592       xen_ctrl_version=41100
2593       xen=enabled
2594     elif
2595         cat > $TMPC <<EOF &&
2596 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2597 #include <xenforeignmemory.h>
2598 #include <xentoolcore.h>
2599 int main(void) {
2600   xenforeignmemory_handle *xfmem;
2601
2602   xfmem = xenforeignmemory_open(0, 0);
2603   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2604   xentoolcore_restrict_all(0);
2605
2606   return 0;
2607 }
2608 EOF
2609         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2610       then
2611       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2612       xen_ctrl_version=41000
2613       xen=enabled
2614     elif
2615         cat > $TMPC <<EOF &&
2616 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2617 #define __XEN_TOOLS__
2618 #include <xendevicemodel.h>
2619 int main(void) {
2620   xendevicemodel_handle *xd;
2621
2622   xd = xendevicemodel_open(0, 0);
2623   xendevicemodel_close(xd);
2624
2625   return 0;
2626 }
2627 EOF
2628         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2629       then
2630       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2631       xen_ctrl_version=40900
2632       xen=enabled
2633     elif
2634         cat > $TMPC <<EOF &&
2635 /*
2636  * If we have stable libs the we don't want the libxc compat
2637  * layers, regardless of what CFLAGS we may have been given.
2638  *
2639  * Also, check if xengnttab_grant_copy_segment_t is defined and
2640  * grant copy operation is implemented.
2641  */
2642 #undef XC_WANT_COMPAT_EVTCHN_API
2643 #undef XC_WANT_COMPAT_GNTTAB_API
2644 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2645 #include <xenctrl.h>
2646 #include <xenstore.h>
2647 #include <xenevtchn.h>
2648 #include <xengnttab.h>
2649 #include <xenforeignmemory.h>
2650 #include <stdint.h>
2651 #include <xen/hvm/hvm_info_table.h>
2652 #if !defined(HVM_MAX_VCPUS)
2653 # error HVM_MAX_VCPUS not defined
2654 #endif
2655 int main(void) {
2656   xc_interface *xc = NULL;
2657   xenforeignmemory_handle *xfmem;
2658   xenevtchn_handle *xe;
2659   xengnttab_handle *xg;
2660   xengnttab_grant_copy_segment_t* seg = NULL;
2661
2662   xs_daemon_open();
2663
2664   xc = xc_interface_open(0, 0, 0);
2665   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2666   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2667   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2668   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2669
2670   xfmem = xenforeignmemory_open(0, 0);
2671   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2672
2673   xe = xenevtchn_open(0, 0);
2674   xenevtchn_fd(xe);
2675
2676   xg = xengnttab_open(0, 0);
2677   xengnttab_grant_copy(xg, 0, seg);
2678
2679   return 0;
2680 }
2681 EOF
2682         compile_prog "" "$xen_libs $xen_stable_libs"
2683       then
2684       xen_ctrl_version=40800
2685       xen=enabled
2686     elif
2687         cat > $TMPC <<EOF &&
2688 /*
2689  * If we have stable libs the we don't want the libxc compat
2690  * layers, regardless of what CFLAGS we may have been given.
2691  */
2692 #undef XC_WANT_COMPAT_EVTCHN_API
2693 #undef XC_WANT_COMPAT_GNTTAB_API
2694 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2695 #include <xenctrl.h>
2696 #include <xenstore.h>
2697 #include <xenevtchn.h>
2698 #include <xengnttab.h>
2699 #include <xenforeignmemory.h>
2700 #include <stdint.h>
2701 #include <xen/hvm/hvm_info_table.h>
2702 #if !defined(HVM_MAX_VCPUS)
2703 # error HVM_MAX_VCPUS not defined
2704 #endif
2705 int main(void) {
2706   xc_interface *xc = NULL;
2707   xenforeignmemory_handle *xfmem;
2708   xenevtchn_handle *xe;
2709   xengnttab_handle *xg;
2710
2711   xs_daemon_open();
2712
2713   xc = xc_interface_open(0, 0, 0);
2714   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2715   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2716   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2717   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2718
2719   xfmem = xenforeignmemory_open(0, 0);
2720   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2721
2722   xe = xenevtchn_open(0, 0);
2723   xenevtchn_fd(xe);
2724
2725   xg = xengnttab_open(0, 0);
2726   xengnttab_map_grant_ref(xg, 0, 0, 0);
2727
2728   return 0;
2729 }
2730 EOF
2731         compile_prog "" "$xen_libs $xen_stable_libs"
2732       then
2733       xen_ctrl_version=40701
2734       xen=enabled
2735
2736     # Xen 4.6
2737     elif
2738         cat > $TMPC <<EOF &&
2739 #include <xenctrl.h>
2740 #include <xenstore.h>
2741 #include <stdint.h>
2742 #include <xen/hvm/hvm_info_table.h>
2743 #if !defined(HVM_MAX_VCPUS)
2744 # error HVM_MAX_VCPUS not defined
2745 #endif
2746 int main(void) {
2747   xc_interface *xc;
2748   xs_daemon_open();
2749   xc = xc_interface_open(0, 0, 0);
2750   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2751   xc_gnttab_open(NULL, 0);
2752   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2753   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2754   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2755   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2756   return 0;
2757 }
2758 EOF
2759         compile_prog "" "$xen_libs"
2760       then
2761       xen_ctrl_version=40600
2762       xen=enabled
2763
2764     # Xen 4.5
2765     elif
2766         cat > $TMPC <<EOF &&
2767 #include <xenctrl.h>
2768 #include <xenstore.h>
2769 #include <stdint.h>
2770 #include <xen/hvm/hvm_info_table.h>
2771 #if !defined(HVM_MAX_VCPUS)
2772 # error HVM_MAX_VCPUS not defined
2773 #endif
2774 int main(void) {
2775   xc_interface *xc;
2776   xs_daemon_open();
2777   xc = xc_interface_open(0, 0, 0);
2778   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2779   xc_gnttab_open(NULL, 0);
2780   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2781   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2782   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2783   return 0;
2784 }
2785 EOF
2786         compile_prog "" "$xen_libs"
2787       then
2788       xen_ctrl_version=40500
2789       xen=enabled
2790
2791     elif
2792         cat > $TMPC <<EOF &&
2793 #include <xenctrl.h>
2794 #include <xenstore.h>
2795 #include <stdint.h>
2796 #include <xen/hvm/hvm_info_table.h>
2797 #if !defined(HVM_MAX_VCPUS)
2798 # error HVM_MAX_VCPUS not defined
2799 #endif
2800 int main(void) {
2801   xc_interface *xc;
2802   xs_daemon_open();
2803   xc = xc_interface_open(0, 0, 0);
2804   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2805   xc_gnttab_open(NULL, 0);
2806   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2807   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2808   return 0;
2809 }
2810 EOF
2811         compile_prog "" "$xen_libs"
2812       then
2813       xen_ctrl_version=40200
2814       xen=enabled
2815
2816     else
2817       if test "$xen" = "enabled" ; then
2818         feature_not_found "xen (unsupported version)" \
2819                           "Install a supported xen (xen 4.2 or newer)"
2820       fi
2821       xen=disabled
2822     fi
2823
2824     if test "$xen" = enabled; then
2825       if test $xen_ctrl_version -ge 40701  ; then
2826         xen_libs="$xen_libs $xen_stable_libs "
2827       fi
2828     fi
2829   fi
2830 fi
2831
2832 if test "$xen_pci_passthrough" != "disabled"; then
2833   if test "$xen" = "enabled" && test "$linux" = "yes"; then
2834     xen_pci_passthrough=enabled
2835   else
2836     if test "$xen_pci_passthrough" = "enabled"; then
2837       error_exit "User requested feature Xen PCI Passthrough" \
2838           " but this feature requires /sys from Linux"
2839     fi
2840     xen_pci_passthrough=disabled
2841   fi
2842 fi
2843
2844 ##########################################
2845 # gettext probe
2846 if test "$gettext" != "false" ; then
2847   if has xgettext; then
2848     gettext=true
2849   else
2850     if test "$gettext" = "true" ; then
2851       feature_not_found "gettext" "Install xgettext binary"
2852     fi
2853     gettext=false
2854   fi
2855 fi
2856
2857 ##########################################
2858 # X11 probe
2859 if $pkg_config --exists "x11"; then
2860     have_x11=yes
2861     x11_cflags=$($pkg_config --cflags x11)
2862     x11_libs=$($pkg_config --libs x11)
2863 fi
2864
2865 ##########################################
2866 # GTK probe
2867
2868 if test "$gtk" != "no"; then
2869     gtkpackage="gtk+-3.0"
2870     gtkx11package="gtk+-x11-3.0"
2871     gtkversion="3.22.0"
2872     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2873         gtk_cflags=$($pkg_config --cflags $gtkpackage)
2874         gtk_libs=$($pkg_config --libs $gtkpackage)
2875         gtk_version=$($pkg_config --modversion $gtkpackage)
2876         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2877             need_x11=yes
2878             gtk_cflags="$gtk_cflags $x11_cflags"
2879             gtk_libs="$gtk_libs $x11_libs"
2880         fi
2881         gtk="yes"
2882     elif test "$gtk" = "yes"; then
2883         feature_not_found "gtk" "Install gtk3-devel"
2884     else
2885         gtk="no"
2886     fi
2887 fi
2888
2889
2890 ##########################################
2891 # GNUTLS probe
2892
2893 if test "$gnutls" != "no"; then
2894     pass="no"
2895     if $pkg_config --exists "gnutls >= 3.1.18"; then
2896         gnutls_cflags=$($pkg_config --cflags gnutls)
2897         gnutls_libs=$($pkg_config --libs gnutls)
2898         # Packaging for the static libraries is not always correct.
2899         # At least ubuntu 18.04 ships only shared libraries.
2900         write_c_skeleton
2901         if compile_prog "" "$gnutls_libs" ; then
2902             pass="yes"
2903         fi
2904     fi
2905     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2906         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2907     else
2908         gnutls="$pass"
2909     fi
2910 fi
2911
2912
2913 # If user didn't give a --disable/enable-gcrypt flag,
2914 # then mark as disabled if user requested nettle
2915 # explicitly
2916 if test -z "$gcrypt"
2917 then
2918     if test "$nettle" = "yes"
2919     then
2920         gcrypt="no"
2921     fi
2922 fi
2923
2924 # If user didn't give a --disable/enable-nettle flag,
2925 # then mark as disabled if user requested gcrypt
2926 # explicitly
2927 if test -z "$nettle"
2928 then
2929     if test "$gcrypt" = "yes"
2930     then
2931         nettle="no"
2932     fi
2933 fi
2934
2935 has_libgcrypt() {
2936     if ! has "libgcrypt-config"
2937     then
2938         return 1
2939     fi
2940
2941     if test -n "$cross_prefix"
2942     then
2943         host=$(libgcrypt-config --host)
2944         if test "$host-" != $cross_prefix
2945         then
2946             return 1
2947         fi
2948     fi
2949
2950     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2951     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2952
2953     if test $maj != 1 || test $min -lt 5
2954     then
2955        return 1
2956     fi
2957
2958     return 0
2959 }
2960
2961
2962 if test "$nettle" != "no"; then
2963     pass="no"
2964     if $pkg_config --exists "nettle >= 2.7.1"; then
2965         nettle_cflags=$($pkg_config --cflags nettle)
2966         nettle_libs=$($pkg_config --libs nettle)
2967         nettle_version=$($pkg_config --modversion nettle)
2968         # Link test to make sure the given libraries work (e.g for static).
2969         write_c_skeleton
2970         if compile_prog "" "$nettle_libs" ; then
2971             if test -z "$gcrypt"; then
2972                gcrypt="no"
2973             fi
2974             pass="yes"
2975         fi
2976     fi
2977     if test "$pass" = "yes"
2978     then
2979         cat > $TMPC << EOF
2980 #include <nettle/xts.h>
2981 int main(void) {
2982   return 0;
2983 }
2984 EOF
2985         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2986             nettle_xts=yes
2987             qemu_private_xts=no
2988         fi
2989     fi
2990     if test "$pass" = "no" && test "$nettle" = "yes"; then
2991         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2992     else
2993         nettle="$pass"
2994     fi
2995 fi
2996
2997 if test "$gcrypt" != "no"; then
2998     pass="no"
2999     if has_libgcrypt; then
3000         gcrypt_cflags=$(libgcrypt-config --cflags)
3001         gcrypt_libs=$(libgcrypt-config --libs)
3002         # Debian has removed -lgpg-error from libgcrypt-config
3003         # as it "spreads unnecessary dependencies" which in
3004         # turn breaks static builds...
3005         if test "$static" = "yes"
3006         then
3007             gcrypt_libs="$gcrypt_libs -lgpg-error"
3008         fi
3009
3010         # Link test to make sure the given libraries work (e.g for static).
3011         write_c_skeleton
3012         if compile_prog "" "$gcrypt_libs" ; then
3013             pass="yes"
3014         fi
3015     fi
3016     if test "$pass" = "yes"; then
3017         gcrypt="yes"
3018         cat > $TMPC << EOF
3019 #include <gcrypt.h>
3020 int main(void) {
3021   gcry_mac_hd_t handle;
3022   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3023                 GCRY_MAC_FLAG_SECURE, NULL);
3024   return 0;
3025 }
3026 EOF
3027         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3028             gcrypt_hmac=yes
3029         fi
3030         cat > $TMPC << EOF
3031 #include <gcrypt.h>
3032 int main(void) {
3033   gcry_cipher_hd_t handle;
3034   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3035   return 0;
3036 }
3037 EOF
3038         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3039             gcrypt_xts=yes
3040             qemu_private_xts=no
3041         fi
3042     elif test "$gcrypt" = "yes"; then
3043         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3044     else
3045         gcrypt="no"
3046     fi
3047 fi
3048
3049
3050 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3051 then
3052     error_exit "Only one of gcrypt & nettle can be enabled"
3053 fi
3054
3055 ##########################################
3056 # libtasn1 - only for the TLS creds/session test suite
3057
3058 tasn1=yes
3059 tasn1_cflags=""
3060 tasn1_libs=""
3061 if $pkg_config --exists "libtasn1"; then
3062     tasn1_cflags=$($pkg_config --cflags libtasn1)
3063     tasn1_libs=$($pkg_config --libs libtasn1)
3064 else
3065     tasn1=no
3066 fi
3067
3068
3069 ##########################################
3070 # PAM probe
3071
3072 if test "$auth_pam" != "no"; then
3073     cat > $TMPC <<EOF
3074 #include <security/pam_appl.h>
3075 #include <stdio.h>
3076 int main(void) {
3077    const char *service_name = "qemu";
3078    const char *user = "frank";
3079    const struct pam_conv pam_conv = { 0 };
3080    pam_handle_t *pamh = NULL;
3081    pam_start(service_name, user, &pam_conv, &pamh);
3082    return 0;
3083 }
3084 EOF
3085     if compile_prog "" "-lpam" ; then
3086         auth_pam=yes
3087     else
3088         if test "$auth_pam" = "yes"; then
3089             feature_not_found "PAM" "Install PAM development package"
3090         else
3091             auth_pam=no
3092         fi
3093     fi
3094 fi
3095
3096 ##########################################
3097 # getifaddrs (for tests/test-io-channel-socket )
3098
3099 have_ifaddrs_h=yes
3100 if ! check_include "ifaddrs.h" ; then
3101   have_ifaddrs_h=no
3102 fi
3103
3104 #########################################
3105 # libdrm check
3106 have_drm_h=no
3107 if check_include "libdrm/drm.h" ; then
3108     have_drm_h=yes
3109 fi
3110
3111 #########################################
3112 # sys/signal.h check
3113 have_sys_signal_h=no
3114 if check_include "sys/signal.h" ; then
3115   have_sys_signal_h=yes
3116 fi
3117
3118 ##########################################
3119 # VTE probe
3120
3121 if test "$vte" != "no"; then
3122     vteminversion="0.32.0"
3123     if $pkg_config --exists "vte-2.91"; then
3124       vtepackage="vte-2.91"
3125     else
3126       vtepackage="vte-2.90"
3127     fi
3128     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3129         vte_cflags=$($pkg_config --cflags $vtepackage)
3130         vte_libs=$($pkg_config --libs $vtepackage)
3131         vteversion=$($pkg_config --modversion $vtepackage)
3132         vte="yes"
3133     elif test "$vte" = "yes"; then
3134         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3135     else
3136         vte="no"
3137     fi
3138 fi
3139
3140 ##########################################
3141 # RDMA needs OpenFabrics libraries
3142 if test "$rdma" != "no" ; then
3143   cat > $TMPC <<EOF
3144 #include <rdma/rdma_cma.h>
3145 int main(void) { return 0; }
3146 EOF
3147   rdma_libs="-lrdmacm -libverbs -libumad"
3148   if compile_prog "" "$rdma_libs" ; then
3149     rdma="yes"
3150   else
3151     if test "$rdma" = "yes" ; then
3152         error_exit \
3153             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3154             " Your options:" \
3155             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3156             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3157             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3158     fi
3159     rdma="no"
3160   fi
3161 fi
3162
3163 ##########################################
3164 # PVRDMA detection
3165
3166 cat > $TMPC <<EOF &&
3167 #include <sys/mman.h>
3168
3169 int
3170 main(void)
3171 {
3172     char buf = 0;
3173     void *addr = &buf;
3174     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3175
3176     return 0;
3177 }
3178 EOF
3179
3180 if test "$rdma" = "yes" ; then
3181     case "$pvrdma" in
3182     "")
3183         if compile_prog "" ""; then
3184             pvrdma="yes"
3185         else
3186             pvrdma="no"
3187         fi
3188         ;;
3189     "yes")
3190         if ! compile_prog "" ""; then
3191             error_exit "PVRDMA is not supported since mremap is not implemented"
3192         fi
3193         pvrdma="yes"
3194         ;;
3195     "no")
3196         pvrdma="no"
3197         ;;
3198     esac
3199 else
3200     if test "$pvrdma" = "yes" ; then
3201         error_exit "PVRDMA requires rdma suppport"
3202     fi
3203     pvrdma="no"
3204 fi
3205
3206 # Let's see if enhanced reg_mr is supported
3207 if test "$pvrdma" = "yes" ; then
3208
3209 cat > $TMPC <<EOF &&
3210 #include <infiniband/verbs.h>
3211
3212 int
3213 main(void)
3214 {
3215     struct ibv_mr *mr;
3216     struct ibv_pd *pd = NULL;
3217     size_t length = 10;
3218     uint64_t iova = 0;
3219     int access = 0;
3220     void *addr = NULL;
3221
3222     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3223
3224     ibv_dereg_mr(mr);
3225
3226     return 0;
3227 }
3228 EOF
3229     if ! compile_prog "" "-libverbs"; then
3230         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3231     fi
3232 fi
3233
3234 ##########################################
3235 # xfsctl() probe, used for file-posix.c
3236 if test "$xfs" != "no" ; then
3237   cat > $TMPC << EOF
3238 #include <stddef.h>  /* NULL */
3239 #include <xfs/xfs.h>
3240 int main(void)
3241 {
3242     xfsctl(NULL, 0, 0, NULL);
3243     return 0;
3244 }
3245 EOF
3246   if compile_prog "" "" ; then
3247     xfs="yes"
3248   else
3249     if test "$xfs" = "yes" ; then
3250       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3251     fi
3252     xfs=no
3253   fi
3254 fi
3255
3256 ##########################################
3257 # vde libraries probe
3258 if test "$vde" != "no" ; then
3259   vde_libs="-lvdeplug"
3260   cat > $TMPC << EOF
3261 #include <libvdeplug.h>
3262 int main(void)
3263 {
3264     struct vde_open_args a = {0, 0, 0};
3265     char s[] = "";
3266     vde_open(s, s, &a);
3267     return 0;
3268 }
3269 EOF
3270   if compile_prog "" "$vde_libs" ; then
3271     vde=yes
3272   else
3273     if test "$vde" = "yes" ; then
3274       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3275     fi
3276     vde=no
3277   fi
3278 fi
3279
3280 ##########################################
3281 # netmap support probe
3282 # Apart from looking for netmap headers, we make sure that the host API version
3283 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3284 # a minor/major version number. Minor new features will be marked with values up
3285 # to 15, and if something happens that requires a change to the backend we will
3286 # move above 15, submit the backend fixes and modify this two bounds.
3287 if test "$netmap" != "no" ; then
3288   cat > $TMPC << EOF
3289 #include <inttypes.h>
3290 #include <net/if.h>
3291 #include <net/netmap.h>
3292 #include <net/netmap_user.h>
3293 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3294 #error
3295 #endif
3296 int main(void) { return 0; }
3297 EOF
3298   if compile_prog "" "" ; then
3299     netmap=yes
3300   else
3301     if test "$netmap" = "yes" ; then
3302       feature_not_found "netmap"
3303     fi
3304     netmap=no
3305   fi
3306 fi
3307
3308 ##########################################
3309 # libcap-ng library probe
3310 if test "$cap_ng" != "no" ; then
3311   cap_libs="-lcap-ng"
3312   cat > $TMPC << EOF
3313 #include <cap-ng.h>
3314 int main(void)
3315 {
3316     capng_capability_to_name(CAPNG_EFFECTIVE);
3317     return 0;
3318 }
3319 EOF
3320   if compile_prog "" "$cap_libs" ; then
3321     cap_ng=yes
3322   else
3323     if test "$cap_ng" = "yes" ; then
3324       feature_not_found "cap_ng" "Install libcap-ng devel"
3325     fi
3326     cap_ng=no
3327   fi
3328 fi
3329
3330 ##########################################
3331 # Sound support libraries probe
3332
3333 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3334 for drv in $audio_drv_list; do
3335     case $drv in
3336     alsa | try-alsa)
3337     if $pkg_config alsa --exists; then
3338         alsa_libs=$($pkg_config alsa --libs)
3339         alsa_cflags=$($pkg_config alsa --cflags)
3340         alsa=yes
3341         if test "$drv" = "try-alsa"; then
3342             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3343         fi
3344     else
3345         if test "$drv" = "try-alsa"; then
3346             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3347         else
3348             error_exit "$drv check failed" \
3349                 "Make sure to have the $drv libs and headers installed."
3350         fi
3351     fi
3352     ;;
3353
3354     pa | try-pa)
3355     if $pkg_config libpulse --exists; then
3356         libpulse=yes
3357         pulse_libs=$($pkg_config libpulse --libs)
3358         pulse_cflags=$($pkg_config libpulse --cflags)
3359         if test "$drv" = "try-pa"; then
3360             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3361         fi
3362     else
3363         if test "$drv" = "try-pa"; then
3364             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3365         else
3366             error_exit "$drv check failed" \
3367                 "Make sure to have the $drv libs and headers installed."
3368         fi
3369     fi
3370     ;;
3371
3372     sdl)
3373     if test "$sdl" = "no"; then
3374         error_exit "sdl not found or disabled, can not use sdl audio driver"
3375     fi
3376     ;;
3377
3378     try-sdl)
3379     if test "$sdl" = "no"; then
3380         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3381     else
3382         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3383     fi
3384     ;;
3385
3386     coreaudio)
3387       coreaudio_libs="-framework CoreAudio"
3388     ;;
3389
3390     dsound)
3391       dsound_libs="-lole32 -ldxguid"
3392       audio_win_int="yes"
3393     ;;
3394
3395     oss)
3396       oss_libs="$oss_lib"
3397     ;;
3398
3399     jack | try-jack)
3400     if $pkg_config jack --exists; then
3401         libjack=yes
3402         jack_libs=$($pkg_config jack --libs)
3403         if test "$drv" = "try-jack"; then
3404             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3405         fi
3406     else
3407         if test "$drv" = "try-jack"; then
3408             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3409         else
3410             error_exit "$drv check failed" \
3411                 "Make sure to have the $drv libs and headers installed."
3412         fi
3413     fi
3414     ;;
3415
3416     *)
3417     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3418         error_exit "Unknown driver '$drv' selected" \
3419             "Possible drivers are: $audio_possible_drivers"
3420     }
3421     ;;
3422     esac
3423 done
3424
3425 ##########################################
3426 # BrlAPI probe
3427
3428 if test "$brlapi" != "no" ; then
3429   brlapi_libs="-lbrlapi"
3430   cat > $TMPC << EOF
3431 #include <brlapi.h>
3432 #include <stddef.h>
3433 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3434 EOF
3435   if compile_prog "" "$brlapi_libs" ; then
3436     brlapi=yes
3437   else
3438     if test "$brlapi" = "yes" ; then
3439       feature_not_found "brlapi" "Install brlapi devel"
3440     fi
3441     brlapi=no
3442   fi
3443 fi
3444
3445 ##########################################
3446 # curl probe
3447 if test "$curl" != "no" ; then
3448   if $pkg_config libcurl --exists; then
3449     curlconfig="$pkg_config libcurl"
3450   else
3451     curlconfig=curl-config
3452   fi
3453   cat > $TMPC << EOF
3454 #include <curl/curl.h>
3455 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3456 EOF
3457   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3458   curl_libs=$($curlconfig --libs 2>/dev/null)
3459   if compile_prog "$curl_cflags" "$curl_libs" ; then
3460     curl=yes
3461   else
3462     if test "$curl" = "yes" ; then
3463       feature_not_found "curl" "Install libcurl devel"
3464     fi
3465     curl=no
3466   fi
3467 fi # test "$curl"
3468
3469 ##########################################
3470 # glib support probe
3471
3472 glib_req_ver=2.48
3473 glib_modules=gthread-2.0
3474 if test "$modules" = yes; then
3475     glib_modules="$glib_modules gmodule-export-2.0"
3476 fi
3477 if test "$plugins" = yes; then
3478     glib_modules="$glib_modules gmodule-2.0"
3479 fi
3480
3481 for i in $glib_modules; do
3482     if $pkg_config --atleast-version=$glib_req_ver $i; then
3483         glib_cflags=$($pkg_config --cflags $i)
3484         glib_libs=$($pkg_config --libs $i)
3485     else
3486         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3487     fi
3488 done
3489
3490 # This workaround is required due to a bug in pkg-config file for glib as it
3491 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3492
3493 if test "$static" = yes && test "$mingw32" = yes; then
3494     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3495 fi
3496
3497 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3498     gio=yes
3499     gio_cflags=$($pkg_config --cflags gio-2.0)
3500     gio_libs=$($pkg_config --libs gio-2.0)
3501     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3502     if [ ! -x "$gdbus_codegen" ]; then
3503         gdbus_codegen=
3504     fi
3505 else
3506     gio=no
3507 fi
3508
3509 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3510     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3511     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3512 fi
3513
3514 # Sanity check that the current size_t matches the
3515 # size that glib thinks it should be. This catches
3516 # problems on multi-arch where people try to build
3517 # 32-bit QEMU while pointing at 64-bit glib headers
3518 cat > $TMPC <<EOF
3519 #include <glib.h>
3520 #include <unistd.h>
3521
3522 #define QEMU_BUILD_BUG_ON(x) \
3523   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3524
3525 int main(void) {
3526    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3527    return 0;
3528 }
3529 EOF
3530
3531 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3532     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3533                "You probably need to set PKG_CONFIG_LIBDIR"\
3534                "to point to the right pkg-config files for your"\
3535                "build target"
3536 fi
3537
3538 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3539 cat > $TMPC << EOF
3540 #include <glib.h>
3541 int main(void) { return 0; }
3542 EOF
3543 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3544     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3545         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3546         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3547     fi
3548 fi
3549
3550 # Silence clang warnings triggered by glib < 2.57.2
3551 cat > $TMPC << EOF
3552 #include <glib.h>
3553 typedef struct Foo {
3554     int i;
3555 } Foo;
3556 static void foo_free(Foo *f)
3557 {
3558     g_free(f);
3559 }
3560 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3561 int main(void) { return 0; }
3562 EOF
3563 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3564     if cc_has_warning_flag "-Wno-unused-function"; then
3565         glib_cflags="$glib_cflags -Wno-unused-function"
3566         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3567     fi
3568 fi
3569
3570 ##########################################
3571 # SHA command probe for modules
3572 if test "$modules" = yes; then
3573     shacmd_probe="sha1sum sha1 shasum"
3574     for c in $shacmd_probe; do
3575         if has $c; then
3576             shacmd="$c"
3577             break
3578         fi
3579     done
3580     if test "$shacmd" = ""; then
3581         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3582     fi
3583 fi
3584
3585 ##########################################
3586 # pthread probe
3587 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3588
3589 pthread=no
3590 cat > $TMPC << EOF
3591 #include <pthread.h>
3592 static void *f(void *p) { return NULL; }
3593 int main(void) {
3594   pthread_t thread;
3595   pthread_create(&thread, 0, f, 0);
3596   return 0;
3597 }
3598 EOF
3599 if compile_prog "" "" ; then
3600   pthread=yes
3601 else
3602   for pthread_lib in $PTHREADLIBS_LIST; do
3603     if compile_prog "" "$pthread_lib" ; then
3604       pthread=yes
3605       found=no
3606       for lib_entry in $LIBS; do
3607         if test "$lib_entry" = "$pthread_lib"; then
3608           found=yes
3609           break
3610         fi
3611       done
3612       if test "$found" = "no"; then
3613         LIBS="$pthread_lib $LIBS"
3614       fi
3615       PTHREAD_LIB="$pthread_lib"
3616       break
3617     fi
3618   done
3619 fi
3620
3621 if test "$mingw32" != yes && test "$pthread" = no; then
3622   error_exit "pthread check failed" \
3623       "Make sure to have the pthread libs and headers installed."
3624 fi
3625
3626 # check for pthread_setname_np with thread id
3627 pthread_setname_np_w_tid=no
3628 cat > $TMPC << EOF
3629 #include <pthread.h>
3630
3631 static void *f(void *p) { return NULL; }
3632 int main(void)
3633 {
3634     pthread_t thread;
3635     pthread_create(&thread, 0, f, 0);
3636     pthread_setname_np(thread, "QEMU");
3637     return 0;
3638 }
3639 EOF
3640 if compile_prog "" "$pthread_lib" ; then
3641   pthread_setname_np_w_tid=yes
3642 fi
3643
3644 # check for pthread_setname_np without thread id
3645 pthread_setname_np_wo_tid=no
3646 cat > $TMPC << EOF
3647 #include <pthread.h>
3648
3649 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3650 int main(void)
3651 {
3652     pthread_t thread;
3653     pthread_create(&thread, 0, f, 0);
3654     return 0;
3655 }
3656 EOF
3657 if compile_prog "" "$pthread_lib" ; then
3658   pthread_setname_np_wo_tid=yes
3659 fi
3660
3661 ##########################################
3662 # rbd probe
3663 if test "$rbd" != "no" ; then
3664   cat > $TMPC <<EOF
3665 #include <stdio.h>
3666 #include <rbd/librbd.h>
3667 int main(void) {
3668     rados_t cluster;
3669     rados_create(&cluster, NULL);
3670     return 0;
3671 }
3672 EOF
3673   rbd_libs="-lrbd -lrados"
3674   if compile_prog "" "$rbd_libs" ; then
3675     rbd=yes
3676   else
3677     if test "$rbd" = "yes" ; then
3678       feature_not_found "rados block device" "Install librbd/ceph devel"
3679     fi
3680     rbd=no
3681   fi
3682 fi
3683
3684 ##########################################
3685 # libssh probe
3686 if test "$libssh" != "no" ; then
3687   if $pkg_config --exists libssh; then
3688     libssh_cflags=$($pkg_config libssh --cflags)
3689     libssh_libs=$($pkg_config libssh --libs)
3690     libssh=yes
3691   else
3692     if test "$libssh" = "yes" ; then
3693       error_exit "libssh required for --enable-libssh"
3694     fi
3695     libssh=no
3696   fi
3697 fi
3698
3699 ##########################################
3700 # Check for libssh 0.8
3701 # This is done like this instead of using the LIBSSH_VERSION_* and
3702 # SSH_VERSION_* macros because some distributions in the past shipped
3703 # snapshots of the future 0.8 from Git, and those snapshots did not
3704 # have updated version numbers (still referring to 0.7.0).
3705
3706 if test "$libssh" = "yes"; then
3707   cat > $TMPC <<EOF
3708 #include <libssh/libssh.h>
3709 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3710 EOF
3711   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3712     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3713   fi
3714 fi
3715
3716 ##########################################
3717 # linux-aio probe
3718
3719 if test "$linux_aio" != "no" ; then
3720   cat > $TMPC <<EOF
3721 #include <libaio.h>
3722 #include <sys/eventfd.h>
3723 #include <stddef.h>
3724 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3725 EOF
3726   if compile_prog "" "-laio" ; then
3727     linux_aio=yes
3728   else
3729     if test "$linux_aio" = "yes" ; then
3730       feature_not_found "linux AIO" "Install libaio devel"
3731     fi
3732     linux_aio=no
3733   fi
3734 fi
3735 ##########################################
3736 # linux-io-uring probe
3737
3738 if test "$linux_io_uring" != "no" ; then
3739   if $pkg_config liburing; then
3740     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3741     linux_io_uring_libs=$($pkg_config --libs liburing)
3742     linux_io_uring=yes
3743   else
3744     if test "$linux_io_uring" = "yes" ; then
3745       feature_not_found "linux io_uring" "Install liburing devel"
3746     fi
3747     linux_io_uring=no
3748   fi
3749 fi
3750
3751 ##########################################
3752 # TPM emulation is only on POSIX
3753
3754 if test "$tpm" = ""; then
3755   if test "$mingw32" = "yes"; then
3756     tpm=no
3757   else
3758     tpm=yes
3759   fi
3760 elif test "$tpm" = "yes"; then
3761   if test "$mingw32" = "yes" ; then
3762     error_exit "TPM emulation only available on POSIX systems"
3763   fi
3764 fi
3765
3766 ##########################################
3767 # attr probe
3768
3769 libattr_libs=
3770 if test "$attr" != "no" ; then
3771   cat > $TMPC <<EOF
3772 #include <stdio.h>
3773 #include <sys/types.h>
3774 #ifdef CONFIG_LIBATTR
3775 #include <attr/xattr.h>
3776 #else
3777 #include <sys/xattr.h>
3778 #endif
3779 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
3780 EOF
3781   if compile_prog "" "" ; then
3782     attr=yes
3783   # Older distros have <attr/xattr.h>, and need -lattr:
3784   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
3785     attr=yes
3786     libattr_libs="-lattr"
3787     libattr=yes
3788   else
3789     if test "$attr" = "yes" ; then
3790       feature_not_found "ATTR" "Install libc6 or libattr devel"
3791     fi
3792     attr=no
3793   fi
3794 fi
3795
3796 ##########################################
3797 # iovec probe
3798 cat > $TMPC <<EOF
3799 #include <sys/types.h>
3800 #include <sys/uio.h>
3801 #include <unistd.h>
3802 int main(void) { return sizeof(struct iovec); }
3803 EOF
3804 iovec=no
3805 if compile_prog "" "" ; then
3806   iovec=yes
3807 fi
3808
3809 ##########################################
3810 # preadv probe
3811 cat > $TMPC <<EOF
3812 #include <sys/types.h>
3813 #include <sys/uio.h>
3814 #include <unistd.h>
3815 int main(void) { return preadv(0, 0, 0, 0); }
3816 EOF
3817 preadv=no
3818 if compile_prog "" "" ; then
3819   preadv=yes
3820 fi
3821
3822 ##########################################
3823 # fdt probe
3824
3825 case "$fdt" in
3826   auto | enabled | internal)
3827     # Simpler to always update submodule, even if not needed.
3828     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
3829       git_submodules="${git_submodules} dtc"
3830     fi
3831     ;;
3832 esac
3833
3834 ##########################################
3835 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3836
3837 gbm="no"
3838 if $pkg_config gbm; then
3839     gbm_cflags="$($pkg_config --cflags gbm)"
3840     gbm_libs="$($pkg_config --libs gbm)"
3841     gbm="yes"
3842 fi
3843
3844 if test "$opengl" != "no" ; then
3845   opengl_pkgs="epoxy gbm"
3846   if $pkg_config $opengl_pkgs; then
3847     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3848     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3849     opengl=yes
3850     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
3851         gtk_gl="yes"
3852     fi
3853   else
3854     if test "$opengl" = "yes" ; then
3855       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3856     fi
3857     opengl_cflags=""
3858     opengl_libs=""
3859     opengl=no
3860   fi
3861 fi
3862
3863 if test "$opengl" = "yes"; then
3864   cat > $TMPC << EOF
3865 #include <epoxy/egl.h>
3866 #ifndef EGL_MESA_image_dma_buf_export
3867 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3868 #endif
3869 int main(void) { return 0; }
3870 EOF
3871   if compile_prog "" "" ; then
3872     opengl_dmabuf=yes
3873   fi
3874 fi
3875
3876 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
3877   for target in $target_list; do
3878     case $target in
3879       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
3880         need_x11=yes
3881       ;;
3882     esac
3883   done
3884 fi
3885
3886 ##########################################
3887 # libxml2 probe
3888 if test "$libxml2" != "no" ; then
3889     if $pkg_config --exists libxml-2.0; then
3890         libxml2="yes"
3891         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3892         libxml2_libs=$($pkg_config --libs libxml-2.0)
3893     else
3894         if test "$libxml2" = "yes"; then
3895             feature_not_found "libxml2" "Install libxml2 devel"
3896         fi
3897         libxml2="no"
3898     fi
3899 fi
3900
3901 ##########################################
3902 # glusterfs probe
3903 if test "$glusterfs" != "no" ; then
3904   if $pkg_config --atleast-version=3 glusterfs-api; then
3905     glusterfs="yes"
3906     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
3907     glusterfs_libs=$($pkg_config --libs glusterfs-api)
3908     if $pkg_config --atleast-version=4 glusterfs-api; then
3909       glusterfs_xlator_opt="yes"
3910     fi
3911     if $pkg_config --atleast-version=5 glusterfs-api; then
3912       glusterfs_discard="yes"
3913     fi
3914     if $pkg_config --atleast-version=6 glusterfs-api; then
3915       glusterfs_fallocate="yes"
3916       glusterfs_zerofill="yes"
3917     fi
3918     cat > $TMPC << EOF
3919 #include <glusterfs/api/glfs.h>
3920
3921 int
3922 main(void)
3923 {
3924         /* new glfs_ftruncate() passes two additional args */
3925         return glfs_ftruncate(NULL, 0, NULL, NULL);
3926 }
3927 EOF
3928     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3929       glusterfs_ftruncate_has_stat="yes"
3930     fi
3931     cat > $TMPC << EOF
3932 #include <glusterfs/api/glfs.h>
3933
3934 /* new glfs_io_cbk() passes two additional glfs_stat structs */
3935 static void
3936 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
3937 {}
3938
3939 int
3940 main(void)
3941 {
3942         glfs_io_cbk iocb = &glusterfs_iocb;
3943         iocb(NULL, 0 , NULL, NULL, NULL);
3944         return 0;
3945 }
3946 EOF
3947     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3948       glusterfs_iocb_has_stat="yes"
3949     fi
3950   else
3951     if test "$glusterfs" = "yes" ; then
3952       feature_not_found "GlusterFS backend support" \
3953           "Install glusterfs-api devel >= 3"
3954     fi
3955     glusterfs="no"
3956   fi
3957 fi
3958
3959 # Check for inotify functions when we are building linux-user
3960 # emulator.  This is done because older glibc versions don't
3961 # have syscall stubs for these implemented.  In that case we
3962 # don't provide them even if kernel supports them.
3963 #
3964 inotify=no
3965 cat > $TMPC << EOF
3966 #include <sys/inotify.h>
3967
3968 int
3969 main(void)
3970 {
3971         /* try to start inotify */
3972         return inotify_init();
3973 }
3974 EOF
3975 if compile_prog "" "" ; then
3976   inotify=yes
3977 fi
3978
3979 inotify1=no
3980 cat > $TMPC << EOF
3981 #include <sys/inotify.h>
3982
3983 int
3984 main(void)
3985 {
3986     /* try to start inotify */
3987     return inotify_init1(0);
3988 }
3989 EOF
3990 if compile_prog "" "" ; then
3991   inotify1=yes
3992 fi
3993
3994 # check if pipe2 is there
3995 pipe2=no
3996 cat > $TMPC << EOF
3997 #include <unistd.h>
3998 #include <fcntl.h>
3999
4000 int main(void)
4001 {
4002     int pipefd[2];
4003     return pipe2(pipefd, O_CLOEXEC);
4004 }
4005 EOF
4006 if compile_prog "" "" ; then
4007   pipe2=yes
4008 fi
4009
4010 # check if accept4 is there
4011 accept4=no
4012 cat > $TMPC << EOF
4013 #include <sys/socket.h>
4014 #include <stddef.h>
4015
4016 int main(void)
4017 {
4018     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4019     return 0;
4020 }
4021 EOF
4022 if compile_prog "" "" ; then
4023   accept4=yes
4024 fi
4025
4026 # check if tee/splice is there. vmsplice was added same time.
4027 splice=no
4028 cat > $TMPC << EOF
4029 #include <unistd.h>
4030 #include <fcntl.h>
4031 #include <limits.h>
4032
4033 int main(void)
4034 {
4035     int len, fd = 0;
4036     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4037     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4038     return 0;
4039 }
4040 EOF
4041 if compile_prog "" "" ; then
4042   splice=yes
4043 fi
4044
4045 ##########################################
4046 # libnuma probe
4047
4048 if test "$numa" != "no" ; then
4049   cat > $TMPC << EOF
4050 #include <numa.h>
4051 int main(void) { return numa_available(); }
4052 EOF
4053
4054   if compile_prog "" "-lnuma" ; then
4055     numa=yes
4056     numa_libs="-lnuma"
4057   else
4058     if test "$numa" = "yes" ; then
4059       feature_not_found "numa" "install numactl devel"
4060     fi
4061     numa=no
4062   fi
4063 fi
4064
4065 malloc=system
4066 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4067     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4068     exit 1
4069 elif test "$tcmalloc" = "yes" ; then
4070     malloc=tcmalloc
4071 elif test "$jemalloc" = "yes" ; then
4072     malloc=jemalloc
4073 fi
4074
4075 ##########################################
4076 # signalfd probe
4077 signalfd="no"
4078 cat > $TMPC << EOF
4079 #include <unistd.h>
4080 #include <sys/syscall.h>
4081 #include <signal.h>
4082 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4083 EOF
4084
4085 if compile_prog "" "" ; then
4086   signalfd=yes
4087 fi
4088
4089 # check if optreset global is declared by <getopt.h>
4090 optreset="no"
4091 cat > $TMPC << EOF
4092 #include <getopt.h>
4093 int main(void) { return optreset; }
4094 EOF
4095
4096 if compile_prog "" "" ; then
4097   optreset=yes
4098 fi
4099
4100 # check if eventfd is supported
4101 eventfd=no
4102 cat > $TMPC << EOF
4103 #include <sys/eventfd.h>
4104
4105 int main(void)
4106 {
4107     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4108 }
4109 EOF
4110 if compile_prog "" "" ; then
4111   eventfd=yes
4112 fi
4113
4114 # check if memfd is supported
4115 memfd=no
4116 cat > $TMPC << EOF
4117 #include <sys/mman.h>
4118
4119 int main(void)
4120 {
4121     return memfd_create("foo", MFD_ALLOW_SEALING);
4122 }
4123 EOF
4124 if compile_prog "" "" ; then
4125   memfd=yes
4126 fi
4127
4128 # check for usbfs
4129 have_usbfs=no
4130 if test "$linux_user" = "yes"; then
4131   cat > $TMPC << EOF
4132 #include <linux/usbdevice_fs.h>
4133
4134 #ifndef USBDEVFS_GET_CAPABILITIES
4135 #error "USBDEVFS_GET_CAPABILITIES undefined"
4136 #endif
4137
4138 #ifndef USBDEVFS_DISCONNECT_CLAIM
4139 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4140 #endif
4141
4142 int main(void)
4143 {
4144     return 0;
4145 }
4146 EOF
4147   if compile_prog "" ""; then
4148     have_usbfs=yes
4149   fi
4150 fi
4151
4152 # check for fallocate
4153 fallocate=no
4154 cat > $TMPC << EOF
4155 #include <fcntl.h>
4156
4157 int main(void)
4158 {
4159     fallocate(0, 0, 0, 0);
4160     return 0;
4161 }
4162 EOF
4163 if compile_prog "" "" ; then
4164   fallocate=yes
4165 fi
4166
4167 # check for fallocate hole punching
4168 fallocate_punch_hole=no
4169 cat > $TMPC << EOF
4170 #include <fcntl.h>
4171 #include <linux/falloc.h>
4172
4173 int main(void)
4174 {
4175     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4176     return 0;
4177 }
4178 EOF
4179 if compile_prog "" "" ; then
4180   fallocate_punch_hole=yes
4181 fi
4182
4183 # check that fallocate supports range zeroing inside the file
4184 fallocate_zero_range=no
4185 cat > $TMPC << EOF
4186 #include <fcntl.h>
4187 #include <linux/falloc.h>
4188
4189 int main(void)
4190 {
4191     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4192     return 0;
4193 }
4194 EOF
4195 if compile_prog "" "" ; then
4196   fallocate_zero_range=yes
4197 fi
4198
4199 # check for posix_fallocate
4200 posix_fallocate=no
4201 cat > $TMPC << EOF
4202 #include <fcntl.h>
4203
4204 int main(void)
4205 {
4206     posix_fallocate(0, 0, 0);
4207     return 0;
4208 }
4209 EOF
4210 if compile_prog "" "" ; then
4211     posix_fallocate=yes
4212 fi
4213
4214 # check for sync_file_range
4215 sync_file_range=no
4216 cat > $TMPC << EOF
4217 #include <fcntl.h>
4218
4219 int main(void)
4220 {
4221     sync_file_range(0, 0, 0, 0);
4222     return 0;
4223 }
4224 EOF
4225 if compile_prog "" "" ; then
4226   sync_file_range=yes
4227 fi
4228
4229 # check for linux/fiemap.h and FS_IOC_FIEMAP
4230 fiemap=no
4231 cat > $TMPC << EOF
4232 #include <sys/ioctl.h>
4233 #include <linux/fs.h>
4234 #include <linux/fiemap.h>
4235
4236 int main(void)
4237 {
4238     ioctl(0, FS_IOC_FIEMAP, 0);
4239     return 0;
4240 }
4241 EOF
4242 if compile_prog "" "" ; then
4243   fiemap=yes
4244 fi
4245
4246 # check for dup3
4247 dup3=no
4248 cat > $TMPC << EOF
4249 #include <unistd.h>
4250
4251 int main(void)
4252 {
4253     dup3(0, 0, 0);
4254     return 0;
4255 }
4256 EOF
4257 if compile_prog "" "" ; then
4258   dup3=yes
4259 fi
4260
4261 # check for ppoll support
4262 ppoll=no
4263 cat > $TMPC << EOF
4264 #include <poll.h>
4265
4266 int main(void)
4267 {
4268     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4269     ppoll(&pfd, 1, 0, 0);
4270     return 0;
4271 }
4272 EOF
4273 if compile_prog "" "" ; then
4274   ppoll=yes
4275 fi
4276
4277 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4278 prctl_pr_set_timerslack=no
4279 cat > $TMPC << EOF
4280 #include <sys/prctl.h>
4281
4282 int main(void)
4283 {
4284     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4285     return 0;
4286 }
4287 EOF
4288 if compile_prog "" "" ; then
4289   prctl_pr_set_timerslack=yes
4290 fi
4291
4292 # check for epoll support
4293 epoll=no
4294 cat > $TMPC << EOF
4295 #include <sys/epoll.h>
4296
4297 int main(void)
4298 {
4299     epoll_create(0);
4300     return 0;
4301 }
4302 EOF
4303 if compile_prog "" "" ; then
4304   epoll=yes
4305 fi
4306
4307 # epoll_create1 is a later addition
4308 # so we must check separately for its presence
4309 epoll_create1=no
4310 cat > $TMPC << EOF
4311 #include <sys/epoll.h>
4312
4313 int main(void)
4314 {
4315     /* Note that we use epoll_create1 as a value, not as
4316      * a function being called. This is necessary so that on
4317      * old SPARC glibc versions where the function was present in
4318      * the library but not declared in the header file we will
4319      * fail the configure check. (Otherwise we will get a compiler
4320      * warning but not an error, and will proceed to fail the
4321      * qemu compile where we compile with -Werror.)
4322      */
4323     return (int)(uintptr_t)&epoll_create1;
4324 }
4325 EOF
4326 if compile_prog "" "" ; then
4327   epoll_create1=yes
4328 fi
4329
4330 # check for sendfile support
4331 sendfile=no
4332 cat > $TMPC << EOF
4333 #include <sys/sendfile.h>
4334
4335 int main(void)
4336 {
4337     return sendfile(0, 0, 0, 0);
4338 }
4339 EOF
4340 if compile_prog "" "" ; then
4341   sendfile=yes
4342 fi
4343
4344 # check for timerfd support (glibc 2.8 and newer)
4345 timerfd=no
4346 cat > $TMPC << EOF
4347 #include <sys/timerfd.h>
4348
4349 int main(void)
4350 {
4351     return(timerfd_create(CLOCK_REALTIME, 0));
4352 }
4353 EOF
4354 if compile_prog "" "" ; then
4355   timerfd=yes
4356 fi
4357
4358 # check for setns and unshare support
4359 setns=no
4360 cat > $TMPC << EOF
4361 #include <sched.h>
4362
4363 int main(void)
4364 {
4365     int ret;
4366     ret = setns(0, 0);
4367     ret = unshare(0);
4368     return ret;
4369 }
4370 EOF
4371 if compile_prog "" "" ; then
4372   setns=yes
4373 fi
4374
4375 # clock_adjtime probe
4376 clock_adjtime=no
4377 cat > $TMPC <<EOF
4378 #include <time.h>
4379
4380 int main(void)
4381 {
4382     return clock_adjtime(0, 0);
4383 }
4384 EOF
4385 clock_adjtime=no
4386 if compile_prog "" "" ; then
4387   clock_adjtime=yes
4388 fi
4389
4390 # syncfs probe
4391 syncfs=no
4392 cat > $TMPC <<EOF
4393 #include <unistd.h>
4394
4395 int main(void)
4396 {
4397     return syncfs(0);
4398 }
4399 EOF
4400 syncfs=no
4401 if compile_prog "" "" ; then
4402   syncfs=yes
4403 fi
4404
4405 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4406 kcov=no
4407 if check_include sys/kcov.h ; then
4408     kcov=yes
4409 fi
4410
4411 # check for btrfs filesystem support (kernel must be 3.9+)
4412 btrfs=no
4413 if check_include linux/btrfs.h ; then
4414     btrfs=yes
4415 fi
4416
4417 # Search for bswap_32 function
4418 byteswap_h=no
4419 cat > $TMPC << EOF
4420 #include <byteswap.h>
4421 int main(void) { return bswap_32(0); }
4422 EOF
4423 if compile_prog "" "" ; then
4424   byteswap_h=yes
4425 fi
4426
4427 # Search for bswap32 function
4428 bswap_h=no
4429 cat > $TMPC << EOF
4430 #include <sys/endian.h>
4431 #include <sys/types.h>
4432 #include <machine/bswap.h>
4433 int main(void) { return bswap32(0); }
4434 EOF
4435 if compile_prog "" "" ; then
4436   bswap_h=yes
4437 fi
4438
4439 ##########################################
4440 # Do we have libiscsi >= 1.9.0
4441 if test "$libiscsi" != "no" ; then
4442   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4443     libiscsi="yes"
4444     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4445     libiscsi_libs=$($pkg_config --libs libiscsi)
4446   else
4447     if test "$libiscsi" = "yes" ; then
4448       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4449     fi
4450     libiscsi="no"
4451   fi
4452 fi
4453
4454 ##########################################
4455 # Do we need librt
4456 # uClibc provides 2 versions of clock_gettime(), one with realtime
4457 # support and one without. This means that the clock_gettime() don't
4458 # need -lrt. We still need it for timer_create() so we check for this
4459 # function in addition.
4460 cat > $TMPC <<EOF
4461 #include <signal.h>
4462 #include <time.h>
4463 int main(void) {
4464   timer_create(CLOCK_REALTIME, NULL, NULL);
4465   return clock_gettime(CLOCK_REALTIME, NULL);
4466 }
4467 EOF
4468
4469 if compile_prog "" "" ; then
4470   :
4471 # we need pthread for static linking. use previous pthread test result
4472 elif compile_prog "" "$pthread_lib -lrt" ; then
4473   LIBS="$LIBS -lrt"
4474 fi
4475
4476 # Check whether we have openpty() in either libc or libutil
4477 cat > $TMPC << EOF
4478 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4479 int main(void) { return openpty(0, 0, 0, 0, 0); }
4480 EOF
4481
4482 have_openpty="no"
4483 if compile_prog "" "" ; then
4484   have_openpty="yes"
4485 else
4486   if compile_prog "" "-lutil" ; then
4487     have_openpty="yes"
4488   fi
4489 fi
4490
4491 ##########################################
4492 # spice probe
4493 if test "$spice" != "no" ; then
4494   cat > $TMPC << EOF
4495 #include <spice.h>
4496 int main(void) { spice_server_new(); return 0; }
4497 EOF
4498   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4499   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4500   if $pkg_config --atleast-version=0.12.5 spice-server && \
4501      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4502      compile_prog "$spice_cflags" "$spice_libs" ; then
4503     spice="yes"
4504   else
4505     if test "$spice" = "yes" ; then
4506       feature_not_found "spice" \
4507           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4508     fi
4509     spice="no"
4510   fi
4511 fi
4512
4513 # check for smartcard support
4514 if test "$smartcard" != "no"; then
4515     if $pkg_config --atleast-version=2.5.1 libcacard; then
4516         libcacard_cflags=$($pkg_config --cflags libcacard)
4517         libcacard_libs=$($pkg_config --libs libcacard)
4518         smartcard="yes"
4519     else
4520         if test "$smartcard" = "yes"; then
4521             feature_not_found "smartcard" "Install libcacard devel"
4522         fi
4523         smartcard="no"
4524     fi
4525 fi
4526
4527 # check for libusb
4528 if test "$libusb" != "no" ; then
4529     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4530         libusb="yes"
4531         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4532         libusb_libs=$($pkg_config --libs libusb-1.0)
4533     else
4534         if test "$libusb" = "yes"; then
4535             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4536         fi
4537         libusb="no"
4538     fi
4539 fi
4540
4541 # check for usbredirparser for usb network redirection support
4542 if test "$usb_redir" != "no" ; then
4543     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4544         usb_redir="yes"
4545         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4546         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4547     else
4548         if test "$usb_redir" = "yes"; then
4549             feature_not_found "usb-redir" "Install usbredir devel"
4550         fi
4551         usb_redir="no"
4552     fi
4553 fi
4554
4555 ##########################################
4556 # check if we have VSS SDK headers for win
4557
4558 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4559         test "$vss_win32_sdk" != "no" ; then
4560   case "$vss_win32_sdk" in
4561     "")   vss_win32_include="-isystem $source_path" ;;
4562     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4563           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4564           vss_win32_include="-isystem $source_path/.sdk/vss"
4565           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4566           ;;
4567     *)    vss_win32_include="-isystem $vss_win32_sdk"
4568   esac
4569   cat > $TMPC << EOF
4570 #define __MIDL_user_allocate_free_DEFINED__
4571 #include <inc/win2003/vss.h>
4572 int main(void) { return VSS_CTX_BACKUP; }
4573 EOF
4574   if compile_prog "$vss_win32_include" "" ; then
4575     guest_agent_with_vss="yes"
4576     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4577     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4578     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4579   else
4580     if test "$vss_win32_sdk" != "" ; then
4581       echo "ERROR: Please download and install Microsoft VSS SDK:"
4582       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4583       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4584       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4585       echo "ERROR: The headers are extracted in the directory \`inc'."
4586       feature_not_found "VSS support"
4587     fi
4588     guest_agent_with_vss="no"
4589   fi
4590 fi
4591
4592 ##########################################
4593 # lookup Windows platform SDK (if not specified)
4594 # The SDK is needed only to build .tlb (type library) file of guest agent
4595 # VSS provider from the source. It is usually unnecessary because the
4596 # pre-compiled .tlb file is included.
4597
4598 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4599         test "$guest_agent_with_vss" = "yes" ; then
4600   if test -z "$win_sdk"; then
4601     programfiles="$PROGRAMFILES"
4602     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4603     if test -n "$programfiles"; then
4604       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4605     else
4606       feature_not_found "Windows SDK"
4607     fi
4608   elif test "$win_sdk" = "no"; then
4609     win_sdk=""
4610   fi
4611 fi
4612
4613 ##########################################
4614 # check if mingw environment provides a recent ntddscsi.h
4615 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4616   cat > $TMPC << EOF
4617 #include <windows.h>
4618 #include <ntddscsi.h>
4619 int main(void) {
4620 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4621 #error Missing required ioctl definitions
4622 #endif
4623   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4624   return addr.Lun;
4625 }
4626 EOF
4627   if compile_prog "" "" ; then
4628     guest_agent_ntddscsi=yes
4629     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4630   fi
4631 fi
4632
4633 ##########################################
4634 # virgl renderer probe
4635
4636 if test "$virglrenderer" != "no" ; then
4637   cat > $TMPC << EOF
4638 #include <virglrenderer.h>
4639 int main(void) { virgl_renderer_poll(); return 0; }
4640 EOF
4641   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4642   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4643   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4644   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4645      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4646     virglrenderer="yes"
4647   else
4648     if test "$virglrenderer" = "yes" ; then
4649       feature_not_found "virglrenderer"
4650     fi
4651     virglrenderer="no"
4652   fi
4653 fi
4654
4655 ##########################################
4656 # capstone
4657
4658 case "$capstone" in
4659   auto | enabled | internal)
4660     # Simpler to always update submodule, even if not needed.
4661     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
4662       git_submodules="${git_submodules} capstone"
4663     fi
4664     ;;
4665 esac
4666
4667 ##########################################
4668 # check if we have fdatasync
4669
4670 fdatasync=no
4671 cat > $TMPC << EOF
4672 #include <unistd.h>
4673 int main(void) {
4674 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4675 return fdatasync(0);
4676 #else
4677 #error Not supported
4678 #endif
4679 }
4680 EOF
4681 if compile_prog "" "" ; then
4682     fdatasync=yes
4683 fi
4684
4685 ##########################################
4686 # check if we have madvise
4687
4688 madvise=no
4689 cat > $TMPC << EOF
4690 #include <sys/types.h>
4691 #include <sys/mman.h>
4692 #include <stddef.h>
4693 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4694 EOF
4695 if compile_prog "" "" ; then
4696     madvise=yes
4697 fi
4698
4699 ##########################################
4700 # check if we have posix_madvise
4701
4702 posix_madvise=no
4703 cat > $TMPC << EOF
4704 #include <sys/mman.h>
4705 #include <stddef.h>
4706 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4707 EOF
4708 if compile_prog "" "" ; then
4709     posix_madvise=yes
4710 fi
4711
4712 ##########################################
4713 # check if we have posix_memalign()
4714
4715 posix_memalign=no
4716 cat > $TMPC << EOF
4717 #include <stdlib.h>
4718 int main(void) {
4719     void *p;
4720     return posix_memalign(&p, 8, 8);
4721 }
4722 EOF
4723 if compile_prog "" "" ; then
4724     posix_memalign=yes
4725 fi
4726
4727 ##########################################
4728 # check if we have posix_syslog
4729
4730 posix_syslog=no
4731 cat > $TMPC << EOF
4732 #include <syslog.h>
4733 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4734 EOF
4735 if compile_prog "" "" ; then
4736     posix_syslog=yes
4737 fi
4738
4739 ##########################################
4740 # check if we have sem_timedwait
4741
4742 sem_timedwait=no
4743 cat > $TMPC << EOF
4744 #include <semaphore.h>
4745 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4746 EOF
4747 if compile_prog "" "" ; then
4748     sem_timedwait=yes
4749 fi
4750
4751 ##########################################
4752 # check if we have strchrnul
4753
4754 strchrnul=no
4755 cat > $TMPC << EOF
4756 #include <string.h>
4757 int main(void);
4758 // Use a haystack that the compiler shouldn't be able to constant fold
4759 char *haystack = (char*)&main;
4760 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4761 EOF
4762 if compile_prog "" "" ; then
4763     strchrnul=yes
4764 fi
4765
4766 #########################################
4767 # check if we have st_atim
4768
4769 st_atim=no
4770 cat > $TMPC << EOF
4771 #include <sys/stat.h>
4772 #include <stddef.h>
4773 int main(void) { return offsetof(struct stat, st_atim); }
4774 EOF
4775 if compile_prog "" "" ; then
4776     st_atim=yes
4777 fi
4778
4779 ##########################################
4780 # check if trace backend exists
4781
4782 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4783 if test "$?" -ne 0 ; then
4784   error_exit "invalid trace backends" \
4785       "Please choose supported trace backends."
4786 fi
4787
4788 ##########################################
4789 # For 'ust' backend, test if ust headers are present
4790 if have_backend "ust"; then
4791   cat > $TMPC << EOF
4792 #include <lttng/tracepoint.h>
4793 int main(void) { return 0; }
4794 EOF
4795   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4796     if $pkg_config lttng-ust --exists; then
4797       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4798     else
4799       lttng_ust_libs="-llttng-ust -ldl"
4800     fi
4801     if $pkg_config liburcu-bp --exists; then
4802       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4803     else
4804       urcu_bp_libs="-lurcu-bp"
4805     fi
4806   else
4807     error_exit "Trace backend 'ust' missing lttng-ust header files"
4808   fi
4809 fi
4810
4811 ##########################################
4812 # For 'dtrace' backend, test if 'dtrace' command is present
4813 if have_backend "dtrace"; then
4814   if ! has 'dtrace' ; then
4815     error_exit "dtrace command is not found in PATH $PATH"
4816   fi
4817   trace_backend_stap="no"
4818   if has 'stap' ; then
4819     trace_backend_stap="yes"
4820   fi
4821 fi
4822
4823 ##########################################
4824 # check and set a backend for coroutine
4825
4826 # We prefer ucontext, but it's not always possible. The fallback
4827 # is sigcontext. On Windows the only valid backend is the Windows
4828 # specific one.
4829
4830 ucontext_works=no
4831 if test "$darwin" != "yes"; then
4832   cat > $TMPC << EOF
4833 #include <ucontext.h>
4834 #ifdef __stub_makecontext
4835 #error Ignoring glibc stub makecontext which will always fail
4836 #endif
4837 int main(void) { makecontext(0, 0, 0); return 0; }
4838 EOF
4839   if compile_prog "" "" ; then
4840     ucontext_works=yes
4841   fi
4842 fi
4843
4844 if test "$coroutine" = ""; then
4845   if test "$mingw32" = "yes"; then
4846     coroutine=win32
4847   elif test "$ucontext_works" = "yes"; then
4848     coroutine=ucontext
4849   else
4850     coroutine=sigaltstack
4851   fi
4852 else
4853   case $coroutine in
4854   windows)
4855     if test "$mingw32" != "yes"; then
4856       error_exit "'windows' coroutine backend only valid for Windows"
4857     fi
4858     # Unfortunately the user visible backend name doesn't match the
4859     # coroutine-*.c filename for this case, so we have to adjust it here.
4860     coroutine=win32
4861     ;;
4862   ucontext)
4863     if test "$ucontext_works" != "yes"; then
4864       feature_not_found "ucontext"
4865     fi
4866     ;;
4867   sigaltstack)
4868     if test "$mingw32" = "yes"; then
4869       error_exit "only the 'windows' coroutine backend is valid for Windows"
4870     fi
4871     ;;
4872   *)
4873     error_exit "unknown coroutine backend $coroutine"
4874     ;;
4875   esac
4876 fi
4877
4878 if test "$coroutine_pool" = ""; then
4879   coroutine_pool=yes
4880 fi
4881
4882 if test "$debug_stack_usage" = "yes"; then
4883   if test "$coroutine_pool" = "yes"; then
4884     echo "WARN: disabling coroutine pool for stack usage debugging"
4885     coroutine_pool=no
4886   fi
4887 fi
4888
4889 ##################################################
4890 # SafeStack
4891
4892
4893 if test "$safe_stack" = "yes"; then
4894 cat > $TMPC << EOF
4895 int main(int argc, char *argv[])
4896 {
4897 #if ! __has_feature(safe_stack)
4898 #error SafeStack Disabled
4899 #endif
4900     return 0;
4901 }
4902 EOF
4903   flag="-fsanitize=safe-stack"
4904   # Check that safe-stack is supported and enabled.
4905   if compile_prog "-Werror $flag" "$flag"; then
4906     # Flag needed both at compilation and at linking
4907     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4908     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4909   else
4910     error_exit "SafeStack not supported by your compiler"
4911   fi
4912   if test "$coroutine" != "ucontext"; then
4913     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4914   fi
4915 else
4916 cat > $TMPC << EOF
4917 int main(int argc, char *argv[])
4918 {
4919 #if defined(__has_feature)
4920 #if __has_feature(safe_stack)
4921 #error SafeStack Enabled
4922 #endif
4923 #endif
4924     return 0;
4925 }
4926 EOF
4927 if test "$safe_stack" = "no"; then
4928   # Make sure that safe-stack is disabled
4929   if ! compile_prog "-Werror" ""; then
4930     # SafeStack was already enabled, try to explicitly remove the feature
4931     flag="-fno-sanitize=safe-stack"
4932     if ! compile_prog "-Werror $flag" "$flag"; then
4933       error_exit "Configure cannot disable SafeStack"
4934     fi
4935     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4936     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4937   fi
4938 else # "$safe_stack" = ""
4939   # Set safe_stack to yes or no based on pre-existing flags
4940   if compile_prog "-Werror" ""; then
4941     safe_stack="no"
4942   else
4943     safe_stack="yes"
4944     if test "$coroutine" != "ucontext"; then
4945       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4946     fi
4947   fi
4948 fi
4949 fi
4950
4951 ##########################################
4952 # check if we have open_by_handle_at
4953
4954 open_by_handle_at=no
4955 cat > $TMPC << EOF
4956 #include <fcntl.h>
4957 #if !defined(AT_EMPTY_PATH)
4958 # error missing definition
4959 #else
4960 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4961 #endif
4962 EOF
4963 if compile_prog "" "" ; then
4964     open_by_handle_at=yes
4965 fi
4966
4967 ########################################
4968 # check if we have linux/magic.h
4969
4970 linux_magic_h=no
4971 cat > $TMPC << EOF
4972 #include <linux/magic.h>
4973 int main(void) {
4974   return 0;
4975 }
4976 EOF
4977 if compile_prog "" "" ; then
4978     linux_magic_h=yes
4979 fi
4980
4981 ########################################
4982 # check if we have valgrind/valgrind.h
4983
4984 valgrind_h=no
4985 cat > $TMPC << EOF
4986 #include <valgrind/valgrind.h>
4987 int main(void) {
4988   return 0;
4989 }
4990 EOF
4991 if compile_prog "" "" ; then
4992     valgrind_h=yes
4993 fi
4994
4995 ########################################
4996 # check if environ is declared
4997
4998 has_environ=no
4999 cat > $TMPC << EOF
5000 #include <unistd.h>
5001 int main(void) {
5002     environ = 0;
5003     return 0;
5004 }
5005 EOF
5006 if compile_prog "" "" ; then
5007     has_environ=yes
5008 fi
5009
5010 ########################################
5011 # check if cpuid.h is usable.
5012
5013 cat > $TMPC << EOF
5014 #include <cpuid.h>
5015 int main(void) {
5016     unsigned a, b, c, d;
5017     int max = __get_cpuid_max(0, 0);
5018
5019     if (max >= 1) {
5020         __cpuid(1, a, b, c, d);
5021     }
5022
5023     if (max >= 7) {
5024         __cpuid_count(7, 0, a, b, c, d);
5025     }
5026
5027     return 0;
5028 }
5029 EOF
5030 if compile_prog "" "" ; then
5031     cpuid_h=yes
5032 fi
5033
5034 ##########################################
5035 # avx2 optimization requirement check
5036 #
5037 # There is no point enabling this if cpuid.h is not usable,
5038 # since we won't be able to select the new routines.
5039
5040 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5041   cat > $TMPC << EOF
5042 #pragma GCC push_options
5043 #pragma GCC target("avx2")
5044 #include <cpuid.h>
5045 #include <immintrin.h>
5046 static int bar(void *a) {
5047     __m256i x = *(__m256i *)a;
5048     return _mm256_testz_si256(x, x);
5049 }
5050 int main(int argc, char *argv[]) { return bar(argv[0]); }
5051 EOF
5052   if compile_object "" ; then
5053     avx2_opt="yes"
5054   else
5055     avx2_opt="no"
5056   fi
5057 fi
5058
5059 ##########################################
5060 # avx512f optimization requirement check
5061 #
5062 # There is no point enabling this if cpuid.h is not usable,
5063 # since we won't be able to select the new routines.
5064 # by default, it is turned off.
5065 # if user explicitly want to enable it, check environment
5066
5067 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5068   cat > $TMPC << EOF
5069 #pragma GCC push_options
5070 #pragma GCC target("avx512f")
5071 #include <cpuid.h>
5072 #include <immintrin.h>
5073 static int bar(void *a) {
5074     __m512i x = *(__m512i *)a;
5075     return _mm512_test_epi64_mask(x, x);
5076 }
5077 int main(int argc, char *argv[])
5078 {
5079         return bar(argv[0]);
5080 }
5081 EOF
5082   if ! compile_object "" ; then
5083     avx512f_opt="no"
5084   fi
5085 else
5086   avx512f_opt="no"
5087 fi
5088
5089 ########################################
5090 # check if __[u]int128_t is usable.
5091
5092 int128=no
5093 cat > $TMPC << EOF
5094 __int128_t a;
5095 __uint128_t b;
5096 int main (void) {
5097   a = a + b;
5098   b = a * b;
5099   a = a * a;
5100   return 0;
5101 }
5102 EOF
5103 if compile_prog "" "" ; then
5104     int128=yes
5105 fi
5106
5107 #########################################
5108 # See if 128-bit atomic operations are supported.
5109
5110 atomic128=no
5111 if test "$int128" = "yes"; then
5112   cat > $TMPC << EOF
5113 int main(void)
5114 {
5115   unsigned __int128 x = 0, y = 0;
5116   y = __atomic_load_16(&x, 0);
5117   __atomic_store_16(&x, y, 0);
5118   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5119   return 0;
5120 }
5121 EOF
5122   if compile_prog "" "" ; then
5123     atomic128=yes
5124   fi
5125 fi
5126
5127 cmpxchg128=no
5128 if test "$int128" = yes && test "$atomic128" = no; then
5129   cat > $TMPC << EOF
5130 int main(void)
5131 {
5132   unsigned __int128 x = 0, y = 0;
5133   __sync_val_compare_and_swap_16(&x, y, x);
5134   return 0;
5135 }
5136 EOF
5137   if compile_prog "" "" ; then
5138     cmpxchg128=yes
5139   fi
5140 fi
5141
5142 #########################################
5143 # See if 64-bit atomic operations are supported.
5144 # Note that without __atomic builtins, we can only
5145 # assume atomic loads/stores max at pointer size.
5146
5147 cat > $TMPC << EOF
5148 #include <stdint.h>
5149 int main(void)
5150 {
5151   uint64_t x = 0, y = 0;
5152 #ifdef __ATOMIC_RELAXED
5153   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5154   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5155   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5156   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5157   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5158 #else
5159   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5160   __sync_lock_test_and_set(&x, y);
5161   __sync_val_compare_and_swap(&x, y, 0);
5162   __sync_fetch_and_add(&x, y);
5163 #endif
5164   return 0;
5165 }
5166 EOF
5167 if compile_prog "" "" ; then
5168   atomic64=yes
5169 fi
5170
5171 #########################################
5172 # See if --dynamic-list is supported by the linker
5173 ld_dynamic_list="no"
5174 if test "$static" = "no" ; then
5175     cat > $TMPTXT <<EOF
5176 {
5177   foo;
5178 };
5179 EOF
5180
5181     cat > $TMPC <<EOF
5182 #include <stdio.h>
5183 void foo(void);
5184
5185 void foo(void)
5186 {
5187   printf("foo\n");
5188 }
5189
5190 int main(void)
5191 {
5192   foo();
5193   return 0;
5194 }
5195 EOF
5196
5197     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5198         ld_dynamic_list="yes"
5199     fi
5200 fi
5201
5202 #########################################
5203 # See if -exported_symbols_list is supported by the linker
5204
5205 ld_exported_symbols_list="no"
5206 if test "$static" = "no" ; then
5207     cat > $TMPTXT <<EOF
5208   _foo
5209 EOF
5210
5211     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5212         ld_exported_symbols_list="yes"
5213     fi
5214 fi
5215
5216 if  test "$plugins" = "yes" &&
5217     test "$ld_dynamic_list" = "no" &&
5218     test "$ld_exported_symbols_list" = "no" ; then
5219   error_exit \
5220       "Plugin support requires dynamic linking and specifying a set of symbols " \
5221       "that are exported to plugins. Unfortunately your linker doesn't " \
5222       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5223       "for this purpose. You can't build with --static."
5224 fi
5225
5226 ########################################
5227 # See if __attribute__((alias)) is supported.
5228 # This false for Xcode 9, but has been remedied for Xcode 10.
5229 # Unfortunately, travis uses Xcode 9 by default.
5230
5231 attralias=no
5232 cat > $TMPC << EOF
5233 int x = 1;
5234 extern const int y __attribute__((alias("x")));
5235 int main(void) { return 0; }
5236 EOF
5237 if compile_prog "" "" ; then
5238     attralias=yes
5239 fi
5240
5241 ########################################
5242 # check if getauxval is available.
5243
5244 getauxval=no
5245 cat > $TMPC << EOF
5246 #include <sys/auxv.h>
5247 int main(void) {
5248   return getauxval(AT_HWCAP) == 0;
5249 }
5250 EOF
5251 if compile_prog "" "" ; then
5252     getauxval=yes
5253 fi
5254
5255 ########################################
5256 # check if ccache is interfering with
5257 # semantic analysis of macros
5258
5259 unset CCACHE_CPP2
5260 ccache_cpp2=no
5261 cat > $TMPC << EOF
5262 static const int Z = 1;
5263 #define fn() ({ Z; })
5264 #define TAUT(X) ((X) == Z)
5265 #define PAREN(X, Y) (X == Y)
5266 #define ID(X) (X)
5267 int main(int argc, char *argv[])
5268 {
5269     int x = 0, y = 0;
5270     x = ID(x);
5271     x = fn();
5272     fn();
5273     if (PAREN(x, y)) return 0;
5274     if (TAUT(Z)) return 0;
5275     return 0;
5276 }
5277 EOF
5278
5279 if ! compile_object "-Werror"; then
5280     ccache_cpp2=yes
5281 fi
5282
5283 #################################################
5284 # clang does not support glibc + FORTIFY_SOURCE.
5285
5286 if test "$fortify_source" != "no"; then
5287   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5288     fortify_source="no";
5289   elif test -n "$cxx" && has $cxx &&
5290        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5291     fortify_source="no";
5292   else
5293     fortify_source="yes"
5294   fi
5295 fi
5296
5297 ###############################################
5298 # Check if copy_file_range is provided by glibc
5299 have_copy_file_range=no
5300 cat > $TMPC << EOF
5301 #include <unistd.h>
5302 int main(void) {
5303   copy_file_range(0, NULL, 0, NULL, 0, 0);
5304   return 0;
5305 }
5306 EOF
5307 if compile_prog "" "" ; then
5308     have_copy_file_range=yes
5309 fi
5310
5311 ##########################################
5312 # check if struct fsxattr is available via linux/fs.h
5313
5314 have_fsxattr=no
5315 cat > $TMPC << EOF
5316 #include <linux/fs.h>
5317 struct fsxattr foo;
5318 int main(void) {
5319   return 0;
5320 }
5321 EOF
5322 if compile_prog "" "" ; then
5323     have_fsxattr=yes
5324 fi
5325
5326 ##########################################
5327 # check for usable membarrier system call
5328 if test "$membarrier" = "yes"; then
5329     have_membarrier=no
5330     if test "$mingw32" = "yes" ; then
5331         have_membarrier=yes
5332     elif test "$linux" = "yes" ; then
5333         cat > $TMPC << EOF
5334     #include <linux/membarrier.h>
5335     #include <sys/syscall.h>
5336     #include <unistd.h>
5337     #include <stdlib.h>
5338     int main(void) {
5339         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5340         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5341         exit(0);
5342     }
5343 EOF
5344         if compile_prog "" "" ; then
5345             have_membarrier=yes
5346         fi
5347     fi
5348     if test "$have_membarrier" = "no"; then
5349       feature_not_found "membarrier" "membarrier system call not available"
5350     fi
5351 else
5352     # Do not enable it by default even for Mingw32, because it doesn't
5353     # work on Wine.
5354     membarrier=no
5355 fi
5356
5357 ##########################################
5358 # check if rtnetlink.h exists and is useful
5359 have_rtnetlink=no
5360 cat > $TMPC << EOF
5361 #include <linux/rtnetlink.h>
5362 int main(void) {
5363   return IFLA_PROTO_DOWN;
5364 }
5365 EOF
5366 if compile_prog "" "" ; then
5367     have_rtnetlink=yes
5368 fi
5369
5370 ##########################################
5371 # check for usable AF_VSOCK environment
5372 have_af_vsock=no
5373 cat > $TMPC << EOF
5374 #include <errno.h>
5375 #include <sys/types.h>
5376 #include <sys/socket.h>
5377 #if !defined(AF_VSOCK)
5378 # error missing AF_VSOCK flag
5379 #endif
5380 #include <linux/vm_sockets.h>
5381 int main(void) {
5382     int sock, ret;
5383     struct sockaddr_vm svm;
5384     socklen_t len = sizeof(svm);
5385     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5386     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5387     if ((ret == -1) && (errno == ENOTCONN)) {
5388         return 0;
5389     }
5390     return -1;
5391 }
5392 EOF
5393 if compile_prog "" "" ; then
5394     have_af_vsock=yes
5395 fi
5396
5397 ##########################################
5398 # check for usable AF_ALG environment
5399 have_afalg=no
5400 cat > $TMPC << EOF
5401 #include <errno.h>
5402 #include <sys/types.h>
5403 #include <sys/socket.h>
5404 #include <linux/if_alg.h>
5405 int main(void) {
5406     int sock;
5407     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5408     return sock;
5409 }
5410 EOF
5411 if compile_prog "" "" ; then
5412     have_afalg=yes
5413 fi
5414 if test "$crypto_afalg" = "yes"
5415 then
5416     if test "$have_afalg" != "yes"
5417     then
5418         error_exit "AF_ALG requested but could not be detected"
5419     fi
5420 fi
5421
5422
5423 #################################################
5424 # check for sysmacros.h
5425
5426 have_sysmacros=no
5427 cat > $TMPC << EOF
5428 #include <sys/sysmacros.h>
5429 int main(void) {
5430     return makedev(0, 0);
5431 }
5432 EOF
5433 if compile_prog "" "" ; then
5434     have_sysmacros=yes
5435 fi
5436
5437 ##########################################
5438 # check for _Static_assert()
5439
5440 have_static_assert=no
5441 cat > $TMPC << EOF
5442 _Static_assert(1, "success");
5443 int main(void) {
5444     return 0;
5445 }
5446 EOF
5447 if compile_prog "" "" ; then
5448     have_static_assert=yes
5449 fi
5450
5451 ##########################################
5452 # check for utmpx.h, it is missing e.g. on OpenBSD
5453
5454 have_utmpx=no
5455 cat > $TMPC << EOF
5456 #include <utmpx.h>
5457 struct utmpx user_info;
5458 int main(void) {
5459     return 0;
5460 }
5461 EOF
5462 if compile_prog "" "" ; then
5463     have_utmpx=yes
5464 fi
5465
5466 ##########################################
5467 # check for getrandom()
5468
5469 have_getrandom=no
5470 cat > $TMPC << EOF
5471 #include <sys/random.h>
5472 int main(void) {
5473     return getrandom(0, 0, GRND_NONBLOCK);
5474 }
5475 EOF
5476 if compile_prog "" "" ; then
5477     have_getrandom=yes
5478 fi
5479
5480 ##########################################
5481 # checks for sanitizers
5482
5483 have_asan=no
5484 have_ubsan=no
5485 have_asan_iface_h=no
5486 have_asan_iface_fiber=no
5487
5488 if test "$sanitizers" = "yes" ; then
5489   write_c_skeleton
5490   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5491       have_asan=yes
5492   fi
5493
5494   # we could use a simple skeleton for flags checks, but this also
5495   # detect the static linking issue of ubsan, see also:
5496   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5497   cat > $TMPC << EOF
5498 #include <stdlib.h>
5499 int main(void) {
5500     void *tmp = malloc(10);
5501     if (tmp != NULL) {
5502         return *(int *)(tmp + 2);
5503     }
5504     return 1;
5505 }
5506 EOF
5507   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5508       have_ubsan=yes
5509   fi
5510
5511   if check_include "sanitizer/asan_interface.h" ; then
5512       have_asan_iface_h=yes
5513   fi
5514
5515   cat > $TMPC << EOF
5516 #include <sanitizer/asan_interface.h>
5517 int main(void) {
5518   __sanitizer_start_switch_fiber(0, 0, 0);
5519   return 0;
5520 }
5521 EOF
5522   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5523       have_asan_iface_fiber=yes
5524   fi
5525 fi
5526
5527 ##########################################
5528 # checks for fuzzer
5529 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5530   write_c_fuzzer_skeleton
5531   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5532     have_fuzzer=yes
5533   else
5534     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5535     exit 1
5536   fi
5537 fi
5538
5539 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5540 # keep it separate until that is not the case.
5541 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5542   error_exit "TSAN is not supported with other sanitiziers."
5543 fi
5544 have_tsan=no
5545 have_tsan_iface_fiber=no
5546 if test "$tsan" = "yes" ; then
5547   write_c_skeleton
5548   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5549       have_tsan=yes
5550   fi
5551   cat > $TMPC << EOF
5552 #include <sanitizer/tsan_interface.h>
5553 int main(void) {
5554   __tsan_create_fiber(0);
5555   return 0;
5556 }
5557 EOF
5558   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5559       have_tsan_iface_fiber=yes
5560   fi
5561 fi
5562
5563 ##########################################
5564 # check for libpmem
5565
5566 if test "$libpmem" != "no"; then
5567         if $pkg_config --exists "libpmem"; then
5568                 libpmem="yes"
5569                 libpmem_libs=$($pkg_config --libs libpmem)
5570                 libpmem_cflags=$($pkg_config --cflags libpmem)
5571         else
5572                 if test "$libpmem" = "yes" ; then
5573                         feature_not_found "libpmem" "Install nvml or pmdk"
5574                 fi
5575                 libpmem="no"
5576         fi
5577 fi
5578
5579 ##########################################
5580 # check for libdaxctl
5581
5582 if test "$libdaxctl" != "no"; then
5583         if $pkg_config --atleast-version=57 "libdaxctl"; then
5584                 libdaxctl="yes"
5585                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5586                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5587         else
5588                 if test "$libdaxctl" = "yes" ; then
5589                         feature_not_found "libdaxctl" "Install libdaxctl"
5590                 fi
5591                 libdaxctl="no"
5592         fi
5593 fi
5594
5595 ##########################################
5596 # check for slirp
5597
5598 case "$slirp" in
5599   auto | enabled | internal)
5600     # Simpler to always update submodule, even if not needed.
5601     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5602       git_submodules="${git_submodules} slirp"
5603     fi
5604     ;;
5605 esac
5606
5607 ##########################################
5608 # check for usable __NR_keyctl syscall
5609
5610 if test "$linux" = "yes" ; then
5611
5612     have_keyring=no
5613     cat > $TMPC << EOF
5614 #include <errno.h>
5615 #include <asm/unistd.h>
5616 #include <linux/keyctl.h>
5617 #include <unistd.h>
5618 int main(void) {
5619     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5620 }
5621 EOF
5622     if compile_prog "" "" ; then
5623         have_keyring=yes
5624     fi
5625 fi
5626 if test "$secret_keyring" != "no"
5627 then
5628     if test "$have_keyring" = "yes"
5629     then
5630         secret_keyring=yes
5631     else
5632         if test "$secret_keyring" = "yes"
5633         then
5634             error_exit "syscall __NR_keyctl requested, \
5635 but not implemented on your system"
5636         else
5637             secret_keyring=no
5638         fi
5639     fi
5640 fi
5641
5642 ##########################################
5643 # End of CC checks
5644 # After here, no more $cc or $ld runs
5645
5646 write_c_skeleton
5647
5648 if test "$gcov" = "yes" ; then
5649   :
5650 elif test "$fortify_source" = "yes" ; then
5651   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5652   debug=no
5653 fi
5654
5655 case "$ARCH" in
5656 alpha)
5657   # Ensure there's only a single GP
5658   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5659 ;;
5660 esac
5661
5662 if test "$gprof" = "yes" ; then
5663   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5664   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5665 fi
5666
5667 if test "$have_asan" = "yes"; then
5668   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5669   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5670   if test "$have_asan_iface_h" = "no" ; then
5671       echo "ASAN build enabled, but ASAN header missing." \
5672            "Without code annotation, the report may be inferior."
5673   elif test "$have_asan_iface_fiber" = "no" ; then
5674       echo "ASAN build enabled, but ASAN header is too old." \
5675            "Without code annotation, the report may be inferior."
5676   fi
5677 fi
5678 if test "$have_tsan" = "yes" ; then
5679   if test "$have_tsan_iface_fiber" = "yes" ; then
5680     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5681     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5682   else
5683     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5684   fi
5685 elif test "$tsan" = "yes" ; then
5686   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5687 fi
5688 if test "$have_ubsan" = "yes"; then
5689   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5690   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5691 fi
5692
5693 ##########################################
5694 # Do we have libnfs
5695 if test "$libnfs" != "no" ; then
5696   if $pkg_config --atleast-version=1.9.3 libnfs; then
5697     libnfs="yes"
5698     libnfs_libs=$($pkg_config --libs libnfs)
5699   else
5700     if test "$libnfs" = "yes" ; then
5701       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
5702     fi
5703     libnfs="no"
5704   fi
5705 fi
5706
5707 ##########################################
5708
5709 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5710 if test "$solaris" = "no" && test "$tsan" = "no"; then
5711     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5712         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5713     fi
5714 fi
5715
5716 # Use ASLR, no-SEH and DEP if available
5717 if test "$mingw32" = "yes" ; then
5718     flags="--no-seh --nxcompat"
5719
5720     # Disable ASLR for debug builds to allow debugging with gdb
5721     if test "$debug" = "no" ; then
5722         flags="--dynamicbase $flags"
5723     fi
5724
5725     for flag in $flags; do
5726         if ld_has $flag ; then
5727             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5728         fi
5729     done
5730 fi
5731
5732 # We can only support ivshmem if we have eventfd
5733 if [ "$eventfd" = "yes" ]; then
5734   ivshmem=yes
5735 fi
5736
5737 if test "$softmmu" = yes ; then
5738   if test "$linux" = yes; then
5739     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
5740       virtfs=yes
5741     else
5742       if test "$virtfs" = yes; then
5743         error_exit "VirtFS requires libcap-ng devel and libattr devel"
5744       fi
5745       virtfs=no
5746     fi
5747   else
5748     if test "$virtfs" = yes; then
5749       error_exit "VirtFS is supported only on Linux"
5750     fi
5751     virtfs=no
5752   fi
5753 fi
5754
5755 # Probe for guest agent support/options
5756
5757 if [ "$guest_agent" != "no" ]; then
5758   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5759       guest_agent=no
5760   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5761       guest_agent=yes
5762   elif [ "$guest_agent" != yes ]; then
5763       guest_agent=no
5764   else
5765       error_exit "Guest agent is not supported on this platform"
5766   fi
5767 fi
5768
5769 # Guest agent Window MSI  package
5770
5771 if test "$guest_agent" != yes; then
5772   if test "$guest_agent_msi" = yes; then
5773     error_exit "MSI guest agent package requires guest agent enabled"
5774   fi
5775   guest_agent_msi=no
5776 elif test "$mingw32" != "yes"; then
5777   if test "$guest_agent_msi" = "yes"; then
5778     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
5779   fi
5780   guest_agent_msi=no
5781 elif ! has wixl; then
5782   if test "$guest_agent_msi" = "yes"; then
5783     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
5784   fi
5785   guest_agent_msi=no
5786 else
5787   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
5788   # disabled explicitly
5789   if test "$guest_agent_msi" != "no"; then
5790     guest_agent_msi=yes
5791   fi
5792 fi
5793
5794 if test "$guest_agent_msi" = "yes"; then
5795   if test "$guest_agent_with_vss" = "yes"; then
5796     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
5797   fi
5798
5799   if test "$QEMU_GA_MANUFACTURER" = ""; then
5800     QEMU_GA_MANUFACTURER=QEMU
5801   fi
5802
5803   if test "$QEMU_GA_DISTRO" = ""; then
5804     QEMU_GA_DISTRO=Linux
5805   fi
5806
5807   if test "$QEMU_GA_VERSION" = ""; then
5808       QEMU_GA_VERSION=$(cat $source_path/VERSION)
5809   fi
5810
5811   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
5812
5813   case "$cpu" in
5814   x86_64)
5815     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
5816     ;;
5817   i386)
5818     QEMU_GA_MSI_ARCH="-D Arch=32"
5819     ;;
5820   *)
5821     error_exit "CPU $cpu not supported for building installation package"
5822     ;;
5823   esac
5824 fi
5825
5826 # Mac OS X ships with a broken assembler
5827 roms=
5828 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5829         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5830         test "$softmmu" = yes ; then
5831     # Different host OS linkers have different ideas about the name of the ELF
5832     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5833     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5834     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5835         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5836             ld_i386_emulation="$emu"
5837             roms="optionrom"
5838             break
5839         fi
5840     done
5841 fi
5842
5843 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5844 if test "$cpu" = "s390x" ; then
5845   write_c_skeleton
5846   if compile_prog "-march=z900" ""; then
5847     roms="$roms s390-ccw"
5848     # SLOF is required for building the s390-ccw firmware on s390x,
5849     # since it is using the libnet code from SLOF for network booting.
5850     if test -e "${source_path}/.git" ; then
5851       git_submodules="${git_submodules} roms/SLOF"
5852     fi
5853   fi
5854 fi
5855
5856 # Check that the C++ compiler exists and works with the C compiler.
5857 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5858 if has $cxx; then
5859     cat > $TMPC <<EOF
5860 int c_function(void);
5861 int main(void) { return c_function(); }
5862 EOF
5863
5864     compile_object
5865
5866     cat > $TMPCXX <<EOF
5867 extern "C" {
5868    int c_function(void);
5869 }
5870 int c_function(void) { return 42; }
5871 EOF
5872
5873     update_cxxflags
5874
5875     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5876         # C++ compiler $cxx works ok with C compiler $cc
5877         :
5878     else
5879         echo "C++ compiler $cxx does not work with C compiler $cc"
5880         echo "Disabling C++ specific optional code"
5881         cxx=
5882     fi
5883 else
5884     echo "No C++ compiler available; disabling C++ specific optional code"
5885     cxx=
5886 fi
5887
5888 if test $git_update = 'yes' ; then
5889     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
5890 fi
5891
5892 config_host_mak="config-host.mak"
5893
5894 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5895 echo >> $config_host_mak
5896
5897 echo all: >> $config_host_mak
5898 echo "GIT=$git" >> $config_host_mak
5899 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5900 echo "GIT_UPDATE=$git_update" >> $config_host_mak
5901
5902 echo "ARCH=$ARCH" >> $config_host_mak
5903
5904 if test "$default_devices" = "yes" ; then
5905   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
5906 else
5907   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
5908 fi
5909 if test "$debug_tcg" = "yes" ; then
5910   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5911 fi
5912 if test "$strip_opt" = "yes" ; then
5913   echo "STRIP=${strip}" >> $config_host_mak
5914 fi
5915 if test "$bigendian" = "yes" ; then
5916   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5917 fi
5918 if test "$mingw32" = "yes" ; then
5919   echo "CONFIG_WIN32=y" >> $config_host_mak
5920   rc_version=$(cat $source_path/VERSION)
5921   version_major=${rc_version%%.*}
5922   rc_version=${rc_version#*.}
5923   version_minor=${rc_version%%.*}
5924   rc_version=${rc_version#*.}
5925   version_subminor=${rc_version%%.*}
5926   version_micro=0
5927   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5928   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5929   if test "$guest_agent_with_vss" = "yes" ; then
5930     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5931     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5932     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5933   fi
5934   if test "$guest_agent_ntddscsi" = "yes" ; then
5935     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5936   fi
5937   if test "$guest_agent_msi" = "yes"; then
5938     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
5939     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5940     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
5941     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
5942     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5943     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5944     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5945   fi
5946 else
5947   echo "CONFIG_POSIX=y" >> $config_host_mak
5948 fi
5949
5950 if test "$linux" = "yes" ; then
5951   echo "CONFIG_LINUX=y" >> $config_host_mak
5952 fi
5953
5954 if test "$darwin" = "yes" ; then
5955   echo "CONFIG_DARWIN=y" >> $config_host_mak
5956 fi
5957
5958 if test "$solaris" = "yes" ; then
5959   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5960 fi
5961 if test "$haiku" = "yes" ; then
5962   echo "CONFIG_HAIKU=y" >> $config_host_mak
5963 fi
5964 if test "$static" = "yes" ; then
5965   echo "CONFIG_STATIC=y" >> $config_host_mak
5966 fi
5967 if test "$profiler" = "yes" ; then
5968   echo "CONFIG_PROFILER=y" >> $config_host_mak
5969 fi
5970 if test "$want_tools" = "yes" ; then
5971   echo "CONFIG_TOOLS=y" >> $config_host_mak
5972 fi
5973 if test "$guest_agent" = "yes" ; then
5974   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5975 fi
5976 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5977 if test "$vde" = "yes" ; then
5978   echo "CONFIG_VDE=y" >> $config_host_mak
5979   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5980 fi
5981 if test "$netmap" = "yes" ; then
5982   echo "CONFIG_NETMAP=y" >> $config_host_mak
5983 fi
5984 if test "$l2tpv3" = "yes" ; then
5985   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5986 fi
5987 if test "$gprof" = "yes" ; then
5988   echo "CONFIG_GPROF=y" >> $config_host_mak
5989 fi
5990 if test "$cap_ng" = "yes" ; then
5991   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
5992   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
5993 fi
5994 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5995 for drv in $audio_drv_list; do
5996     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5997     echo "$def=y" >> $config_host_mak
5998 done
5999 if test "$alsa" = "yes" ; then
6000     echo "CONFIG_ALSA=y" >> $config_host_mak
6001 fi
6002 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6003 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
6004 if test "$libpulse" = "yes" ; then
6005     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
6006 fi
6007 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6008 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6009 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6010 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6011 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6012 if test "$libjack" = "yes" ; then
6013     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6014 fi
6015 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6016 if test "$audio_win_int" = "yes" ; then
6017   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6018 fi
6019 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6020 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6021 if test "$xfs" = "yes" ; then
6022   echo "CONFIG_XFS=y" >> $config_host_mak
6023 fi
6024 qemu_version=$(head $source_path/VERSION)
6025 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6026 echo "SRC_PATH=$source_path" >> $config_host_mak
6027 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6028 if test "$modules" = "yes"; then
6029   # $shacmd can generate a hash started with digit, which the compiler doesn't
6030   # like as an symbol. So prefix it with an underscore
6031   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6032   echo "CONFIG_MODULES=y" >> $config_host_mak
6033 fi
6034 if test "$module_upgrades" = "yes"; then
6035   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6036 fi
6037 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6038   echo "CONFIG_X11=y" >> $config_host_mak
6039   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6040   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6041 fi
6042 if test "$pipe2" = "yes" ; then
6043   echo "CONFIG_PIPE2=y" >> $config_host_mak
6044 fi
6045 if test "$accept4" = "yes" ; then
6046   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6047 fi
6048 if test "$splice" = "yes" ; then
6049   echo "CONFIG_SPLICE=y" >> $config_host_mak
6050 fi
6051 if test "$eventfd" = "yes" ; then
6052   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6053 fi
6054 if test "$memfd" = "yes" ; then
6055   echo "CONFIG_MEMFD=y" >> $config_host_mak
6056 fi
6057 if test "$have_usbfs" = "yes" ; then
6058   echo "CONFIG_USBFS=y" >> $config_host_mak
6059 fi
6060 if test "$fallocate" = "yes" ; then
6061   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6062 fi
6063 if test "$fallocate_punch_hole" = "yes" ; then
6064   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6065 fi
6066 if test "$fallocate_zero_range" = "yes" ; then
6067   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6068 fi
6069 if test "$posix_fallocate" = "yes" ; then
6070   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6071 fi
6072 if test "$sync_file_range" = "yes" ; then
6073   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6074 fi
6075 if test "$fiemap" = "yes" ; then
6076   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6077 fi
6078 if test "$dup3" = "yes" ; then
6079   echo "CONFIG_DUP3=y" >> $config_host_mak
6080 fi
6081 if test "$ppoll" = "yes" ; then
6082   echo "CONFIG_PPOLL=y" >> $config_host_mak
6083 fi
6084 if test "$prctl_pr_set_timerslack" = "yes" ; then
6085   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6086 fi
6087 if test "$epoll" = "yes" ; then
6088   echo "CONFIG_EPOLL=y" >> $config_host_mak
6089 fi
6090 if test "$epoll_create1" = "yes" ; then
6091   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6092 fi
6093 if test "$sendfile" = "yes" ; then
6094   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6095 fi
6096 if test "$timerfd" = "yes" ; then
6097   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6098 fi
6099 if test "$setns" = "yes" ; then
6100   echo "CONFIG_SETNS=y" >> $config_host_mak
6101 fi
6102 if test "$clock_adjtime" = "yes" ; then
6103   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6104 fi
6105 if test "$syncfs" = "yes" ; then
6106   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6107 fi
6108 if test "$kcov" = "yes" ; then
6109   echo "CONFIG_KCOV=y" >> $config_host_mak
6110 fi
6111 if test "$btrfs" = "yes" ; then
6112   echo "CONFIG_BTRFS=y" >> $config_host_mak
6113 fi
6114 if test "$inotify" = "yes" ; then
6115   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6116 fi
6117 if test "$inotify1" = "yes" ; then
6118   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6119 fi
6120 if test "$sem_timedwait" = "yes" ; then
6121   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6122 fi
6123 if test "$strchrnul" = "yes" ; then
6124   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6125 fi
6126 if test "$st_atim" = "yes" ; then
6127   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6128 fi
6129 if test "$byteswap_h" = "yes" ; then
6130   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6131 fi
6132 if test "$bswap_h" = "yes" ; then
6133   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6134 fi
6135 if test "$curl" = "yes" ; then
6136   echo "CONFIG_CURL=y" >> $config_host_mak
6137   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6138   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6139 fi
6140 if test "$brlapi" = "yes" ; then
6141   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6142   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6143 fi
6144 if test "$gtk" = "yes" ; then
6145   echo "CONFIG_GTK=y" >> $config_host_mak
6146   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6147   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6148   if test "$gtk_gl" = "yes" ; then
6149     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6150   fi
6151 fi
6152 if test "$gio" = "yes" ; then
6153     echo "CONFIG_GIO=y" >> $config_host_mak
6154     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6155     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6156     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6157 fi
6158 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6159 if test "$gnutls" = "yes" ; then
6160   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6161   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6162   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6163 fi
6164 if test "$gcrypt" = "yes" ; then
6165   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6166   if test "$gcrypt_hmac" = "yes" ; then
6167     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6168   fi
6169   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6170   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6171 fi
6172 if test "$nettle" = "yes" ; then
6173   echo "CONFIG_NETTLE=y" >> $config_host_mak
6174   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6175   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6176   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6177 fi
6178 if test "$qemu_private_xts" = "yes" ; then
6179   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6180 fi
6181 if test "$tasn1" = "yes" ; then
6182   echo "CONFIG_TASN1=y" >> $config_host_mak
6183 fi
6184 if test "$auth_pam" = "yes" ; then
6185     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6186 fi
6187 if test "$have_ifaddrs_h" = "yes" ; then
6188     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6189 fi
6190 if test "$have_drm_h" = "yes" ; then
6191   echo "HAVE_DRM_H=y" >> $config_host_mak
6192 fi
6193 if test "$have_broken_size_max" = "yes" ; then
6194     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6195 fi
6196 if test "$have_openpty" = "yes" ; then
6197     echo "HAVE_OPENPTY=y" >> $config_host_mak
6198 fi
6199 if test "$have_sys_signal_h" = "yes" ; then
6200     echo "HAVE_SYS_SIGNAL_H=y" >> $config_host_mak
6201 fi
6202
6203 # Work around a system header bug with some kernel/XFS header
6204 # versions where they both try to define 'struct fsxattr':
6205 # xfs headers will not try to redefine structs from linux headers
6206 # if this macro is set.
6207 if test "$have_fsxattr" = "yes" ; then
6208     echo "HAVE_FSXATTR=y" >> $config_host_mak
6209 fi
6210 if test "$have_copy_file_range" = "yes" ; then
6211     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6212 fi
6213 if test "$vte" = "yes" ; then
6214   echo "CONFIG_VTE=y" >> $config_host_mak
6215   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6216   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6217 fi
6218 if test "$virglrenderer" = "yes" ; then
6219   echo "CONFIG_VIRGL=y" >> $config_host_mak
6220   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6221   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6222 fi
6223 if test "$xen" = "enabled" ; then
6224   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6225   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6226   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6227   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6228 fi
6229 if test "$linux_aio" = "yes" ; then
6230   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6231 fi
6232 if test "$linux_io_uring" = "yes" ; then
6233   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6234   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6235   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6236 fi
6237 if test "$attr" = "yes" ; then
6238   echo "CONFIG_ATTR=y" >> $config_host_mak
6239   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6240 fi
6241 if test "$libattr" = "yes" ; then
6242   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6243 fi
6244 if test "$virtfs" = "yes" ; then
6245   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6246 fi
6247 if test "$vhost_scsi" = "yes" ; then
6248   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6249 fi
6250 if test "$vhost_net" = "yes" ; then
6251   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6252 fi
6253 if test "$vhost_net_user" = "yes" ; then
6254   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6255 fi
6256 if test "$vhost_net_vdpa" = "yes" ; then
6257   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6258 fi
6259 if test "$vhost_crypto" = "yes" ; then
6260   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6261 fi
6262 if test "$vhost_vsock" = "yes" ; then
6263   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6264   if test "$vhost_user" = "yes" ; then
6265     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6266   fi
6267 fi
6268 if test "$vhost_kernel" = "yes" ; then
6269   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6270 fi
6271 if test "$vhost_user" = "yes" ; then
6272   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6273 fi
6274 if test "$vhost_vdpa" = "yes" ; then
6275   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6276 fi
6277 if test "$vhost_user_fs" = "yes" ; then
6278   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6279 fi
6280 if test "$blobs" = "yes" ; then
6281   echo "INSTALL_BLOBS=yes" >> $config_host_mak
6282 fi
6283 if test "$iovec" = "yes" ; then
6284   echo "CONFIG_IOVEC=y" >> $config_host_mak
6285 fi
6286 if test "$preadv" = "yes" ; then
6287   echo "CONFIG_PREADV=y" >> $config_host_mak
6288 fi
6289 if test "$membarrier" = "yes" ; then
6290   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6291 fi
6292 if test "$signalfd" = "yes" ; then
6293   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6294 fi
6295 if test "$optreset" = "yes" ; then
6296   echo "HAVE_OPTRESET=y" >> $config_host_mak
6297 fi
6298 if test "$tcg" = "enabled"; then
6299   if test "$tcg_interpreter" = "yes" ; then
6300     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6301   fi
6302 fi
6303 if test "$fdatasync" = "yes" ; then
6304   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6305 fi
6306 if test "$madvise" = "yes" ; then
6307   echo "CONFIG_MADVISE=y" >> $config_host_mak
6308 fi
6309 if test "$posix_madvise" = "yes" ; then
6310   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6311 fi
6312 if test "$posix_memalign" = "yes" ; then
6313   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6314 fi
6315 if test "$spice" = "yes" ; then
6316   echo "CONFIG_SPICE=y" >> $config_host_mak
6317   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6318   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6319 fi
6320
6321 if test "$smartcard" = "yes" ; then
6322   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6323   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6324   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6325 fi
6326
6327 if test "$libusb" = "yes" ; then
6328   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6329   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6330   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6331 fi
6332
6333 if test "$usb_redir" = "yes" ; then
6334   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6335   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6336   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6337 fi
6338
6339 if test "$opengl" = "yes" ; then
6340   echo "CONFIG_OPENGL=y" >> $config_host_mak
6341   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
6342   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6343   if test "$opengl_dmabuf" = "yes" ; then
6344     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6345   fi
6346 fi
6347
6348 if test "$gbm" = "yes" ; then
6349     echo "CONFIG_GBM=y" >> $config_host_mak
6350     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6351     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6352 fi
6353
6354
6355 if test "$avx2_opt" = "yes" ; then
6356   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
6357 fi
6358
6359 if test "$avx512f_opt" = "yes" ; then
6360   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
6361 fi
6362
6363 if test "$lzo" = "yes" ; then
6364   echo "CONFIG_LZO=y" >> $config_host_mak
6365   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
6366 fi
6367
6368 if test "$snappy" = "yes" ; then
6369   echo "CONFIG_SNAPPY=y" >> $config_host_mak
6370   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
6371 fi
6372
6373 if test "$bzip2" = "yes" ; then
6374   echo "CONFIG_BZIP2=y" >> $config_host_mak
6375   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
6376 fi
6377
6378 if test "$lzfse" = "yes" ; then
6379   echo "CONFIG_LZFSE=y" >> $config_host_mak
6380   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
6381 fi
6382
6383 if test "$zstd" = "yes" ; then
6384   echo "CONFIG_ZSTD=y" >> $config_host_mak
6385   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
6386   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
6387 fi
6388
6389 if test "$libiscsi" = "yes" ; then
6390   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
6391   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
6392   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
6393 fi
6394
6395 if test "$libnfs" = "yes" ; then
6396   echo "CONFIG_LIBNFS=y" >> $config_host_mak
6397   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
6398 fi
6399
6400 if test "$seccomp" = "yes"; then
6401   echo "CONFIG_SECCOMP=y" >> $config_host_mak
6402   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
6403   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
6404 fi
6405
6406 # XXX: suppress that
6407 if [ "$bsd" = "yes" ] ; then
6408   echo "CONFIG_BSD=y" >> $config_host_mak
6409 fi
6410
6411 if test "$qom_cast_debug" = "yes" ; then
6412   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
6413 fi
6414 if test "$rbd" = "yes" ; then
6415   echo "CONFIG_RBD=y" >> $config_host_mak
6416   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
6417 fi
6418
6419 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
6420 if test "$coroutine_pool" = "yes" ; then
6421   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
6422 else
6423   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
6424 fi
6425
6426 if test "$debug_stack_usage" = "yes" ; then
6427   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
6428 fi
6429
6430 if test "$crypto_afalg" = "yes" ; then
6431   echo "CONFIG_AF_ALG=y" >> $config_host_mak
6432 fi
6433
6434 if test "$open_by_handle_at" = "yes" ; then
6435   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
6436 fi
6437
6438 if test "$linux_magic_h" = "yes" ; then
6439   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
6440 fi
6441
6442 if test "$valgrind_h" = "yes" ; then
6443   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
6444 fi
6445
6446 if test "$have_asan_iface_fiber" = "yes" ; then
6447     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
6448 fi
6449
6450 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
6451     echo "CONFIG_TSAN=y" >> $config_host_mak
6452 fi
6453
6454 if test "$has_environ" = "yes" ; then
6455   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
6456 fi
6457
6458 if test "$cpuid_h" = "yes" ; then
6459   echo "CONFIG_CPUID_H=y" >> $config_host_mak
6460 fi
6461
6462 if test "$int128" = "yes" ; then
6463   echo "CONFIG_INT128=y" >> $config_host_mak
6464 fi
6465
6466 if test "$atomic128" = "yes" ; then
6467   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
6468 fi
6469
6470 if test "$cmpxchg128" = "yes" ; then
6471   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
6472 fi
6473
6474 if test "$atomic64" = "yes" ; then
6475   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
6476 fi
6477
6478 if test "$attralias" = "yes" ; then
6479   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
6480 fi
6481
6482 if test "$getauxval" = "yes" ; then
6483   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
6484 fi
6485
6486 if test "$glusterfs" = "yes" ; then
6487   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
6488   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
6489   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
6490 fi
6491
6492 if test "$glusterfs_xlator_opt" = "yes" ; then
6493   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
6494 fi
6495
6496 if test "$glusterfs_discard" = "yes" ; then
6497   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
6498 fi
6499
6500 if test "$glusterfs_fallocate" = "yes" ; then
6501   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
6502 fi
6503
6504 if test "$glusterfs_zerofill" = "yes" ; then
6505   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
6506 fi
6507
6508 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
6509   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
6510 fi
6511
6512 if test "$glusterfs_iocb_has_stat" = "yes" ; then
6513   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
6514 fi
6515
6516 if test "$libssh" = "yes" ; then
6517   echo "CONFIG_LIBSSH=y" >> $config_host_mak
6518   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
6519   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
6520 fi
6521
6522 if test "$live_block_migration" = "yes" ; then
6523   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
6524 fi
6525
6526 if test "$tpm" = "yes"; then
6527   echo 'CONFIG_TPM=y' >> $config_host_mak
6528 fi
6529
6530 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
6531 if have_backend "nop"; then
6532   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
6533 fi
6534 if have_backend "simple"; then
6535   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
6536   # Set the appropriate trace file.
6537   trace_file="\"$trace_file-\" FMT_pid"
6538 fi
6539 if have_backend "log"; then
6540   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
6541 fi
6542 if have_backend "ust"; then
6543   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
6544   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
6545   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
6546 fi
6547 if have_backend "dtrace"; then
6548   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
6549   if test "$trace_backend_stap" = "yes" ; then
6550     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
6551   fi
6552 fi
6553 if have_backend "ftrace"; then
6554   if test "$linux" = "yes" ; then
6555     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
6556   else
6557     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
6558   fi
6559 fi
6560 if have_backend "syslog"; then
6561   if test "$posix_syslog" = "yes" ; then
6562     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
6563   else
6564     feature_not_found "syslog(trace backend)" "syslog not available"
6565   fi
6566 fi
6567 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6568
6569 if test "$rdma" = "yes" ; then
6570   echo "CONFIG_RDMA=y" >> $config_host_mak
6571   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6572 fi
6573
6574 if test "$pvrdma" = "yes" ; then
6575   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6576 fi
6577
6578 if test "$have_rtnetlink" = "yes" ; then
6579   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6580 fi
6581
6582 if test "$libxml2" = "yes" ; then
6583   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6584   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6585   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6586 fi
6587
6588 if test "$replication" = "yes" ; then
6589   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6590 fi
6591
6592 if test "$have_af_vsock" = "yes" ; then
6593   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6594 fi
6595
6596 if test "$have_sysmacros" = "yes" ; then
6597   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6598 fi
6599
6600 if test "$have_static_assert" = "yes" ; then
6601   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6602 fi
6603
6604 if test "$have_utmpx" = "yes" ; then
6605   echo "HAVE_UTMPX=y" >> $config_host_mak
6606 fi
6607 if test "$have_getrandom" = "yes" ; then
6608   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6609 fi
6610 if test "$ivshmem" = "yes" ; then
6611   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6612 fi
6613 if test "$debug_mutex" = "yes" ; then
6614   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6615 fi
6616
6617 # Hold two types of flag:
6618 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6619 #                                     a thread we have a handle to
6620 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6621 #                                     platform
6622 if test "$pthread_setname_np_w_tid" = "yes" ; then
6623   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6624   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6625 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6626   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6627   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6628 fi
6629
6630 if test "$libpmem" = "yes" ; then
6631   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6632   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6633   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6634 fi
6635
6636 if test "$libdaxctl" = "yes" ; then
6637   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6638   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6639 fi
6640
6641 if test "$bochs" = "yes" ; then
6642   echo "CONFIG_BOCHS=y" >> $config_host_mak
6643 fi
6644 if test "$cloop" = "yes" ; then
6645   echo "CONFIG_CLOOP=y" >> $config_host_mak
6646 fi
6647 if test "$dmg" = "yes" ; then
6648   echo "CONFIG_DMG=y" >> $config_host_mak
6649 fi
6650 if test "$qcow1" = "yes" ; then
6651   echo "CONFIG_QCOW1=y" >> $config_host_mak
6652 fi
6653 if test "$vdi" = "yes" ; then
6654   echo "CONFIG_VDI=y" >> $config_host_mak
6655 fi
6656 if test "$vvfat" = "yes" ; then
6657   echo "CONFIG_VVFAT=y" >> $config_host_mak
6658 fi
6659 if test "$qed" = "yes" ; then
6660   echo "CONFIG_QED=y" >> $config_host_mak
6661 fi
6662 if test "$parallels" = "yes" ; then
6663   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6664 fi
6665 if test "$sheepdog" = "yes" ; then
6666   add_to deprecated_features "sheepdog"
6667   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6668 fi
6669 if test "$pty_h" = "yes" ; then
6670   echo "HAVE_PTY_H=y" >> $config_host_mak
6671 fi
6672 if test "$have_mlockall" = "yes" ; then
6673   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6674 fi
6675 if test "$fuzzing" = "yes" ; then
6676   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6677   # needed CFLAGS have already been provided
6678   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6679     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6680     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6681   else
6682     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6683   fi
6684 fi
6685
6686 if test "$plugins" = "yes" ; then
6687     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6688     # Copy the export object list to the build dir
6689     if test "$ld_dynamic_list" = "yes" ; then
6690         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6691         ld_symbols=qemu-plugins-ld.symbols
6692         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6693     elif test "$ld_exported_symbols_list" = "yes" ; then
6694         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6695         ld64_symbols=qemu-plugins-ld64.symbols
6696         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6697         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6698             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6699     else
6700         error_exit \
6701             "If \$plugins=yes, either \$ld_dynamic_list or " \
6702             "\$ld_exported_symbols_list should have been set to 'yes'."
6703     fi
6704 fi
6705
6706 if test -n "$gdb_bin" ; then
6707     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6708 fi
6709
6710 if test "$secret_keyring" = "yes" ; then
6711   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6712 fi
6713
6714 echo "ROMS=$roms" >> $config_host_mak
6715 echo "MAKE=$make" >> $config_host_mak
6716 echo "PYTHON=$python" >> $config_host_mak
6717 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6718 echo "MESON=$meson" >> $config_host_mak
6719 echo "NINJA=$ninja" >> $config_host_mak
6720 echo "CC=$cc" >> $config_host_mak
6721 if $iasl -h > /dev/null 2>&1; then
6722   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6723 fi
6724 echo "CXX=$cxx" >> $config_host_mak
6725 echo "OBJCC=$objcc" >> $config_host_mak
6726 echo "AR=$ar" >> $config_host_mak
6727 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6728 echo "AS=$as" >> $config_host_mak
6729 echo "CCAS=$ccas" >> $config_host_mak
6730 echo "CPP=$cpp" >> $config_host_mak
6731 echo "OBJCOPY=$objcopy" >> $config_host_mak
6732 echo "LD=$ld" >> $config_host_mak
6733 echo "RANLIB=$ranlib" >> $config_host_mak
6734 echo "NM=$nm" >> $config_host_mak
6735 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6736 echo "WINDRES=$windres" >> $config_host_mak
6737 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6738 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6739 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6740 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6741 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6742 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6743 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
6744 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6745 echo "PTHREAD_LIB=$PTHREAD_LIB" >> $config_host_mak
6746 echo "EXESUF=$EXESUF" >> $config_host_mak
6747 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6748 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6749 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6750 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6751 if test "$gcov" = "yes" ; then
6752   echo "CONFIG_GCOV=y" >> $config_host_mak
6753 fi
6754
6755 if test "$fuzzing" != "no"; then
6756     echo "CONFIG_FUZZ=y" >> $config_host_mak
6757 fi
6758 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6759
6760 if test "$edk2_blobs" = "yes" ; then
6761   echo "DECOMPRESS_EDK2_BLOBS=y" >> $config_host_mak
6762 fi
6763
6764 if test "$rng_none" = "yes"; then
6765   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6766 fi
6767
6768 # use included Linux headers
6769 if test "$linux" = "yes" ; then
6770   mkdir -p linux-headers
6771   case "$cpu" in
6772   i386|x86_64|x32)
6773     linux_arch=x86
6774     ;;
6775   ppc|ppc64|ppc64le)
6776     linux_arch=powerpc
6777     ;;
6778   s390x)
6779     linux_arch=s390
6780     ;;
6781   aarch64)
6782     linux_arch=arm64
6783     ;;
6784   mips64)
6785     linux_arch=mips
6786     ;;
6787   *)
6788     # For most CPUs the kernel architecture name and QEMU CPU name match.
6789     linux_arch="$cpu"
6790     ;;
6791   esac
6792     # For non-KVM architectures we will not have asm headers
6793     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6794       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6795     fi
6796 fi
6797
6798 for target in $target_list; do
6799     target_dir="$target"
6800     target_name=$(echo $target | cut -d '-' -f 1)
6801     mkdir -p $target_dir
6802     case $target in
6803         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6804         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6805     esac
6806 done
6807
6808 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6809 if test "$default_targets" = "yes"; then
6810   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6811 fi
6812
6813 if test "$numa" = "yes"; then
6814   echo "CONFIG_NUMA=y" >> $config_host_mak
6815   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6816 fi
6817
6818 if test "$ccache_cpp2" = "yes"; then
6819   echo "export CCACHE_CPP2=y" >> $config_host_mak
6820 fi
6821
6822 if test "$safe_stack" = "yes"; then
6823   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6824 fi
6825
6826 # If we're using a separate build tree, set it up now.
6827 # DIRS are directories which we simply mkdir in the build tree;
6828 # LINKS are things to symlink back into the source tree
6829 # (these can be both files and directories).
6830 # Caution: do not add files or directories here using wildcards. This
6831 # will result in problems later if a new file matching the wildcard is
6832 # added to the source tree -- nothing will cause configure to be rerun
6833 # so the build tree will be missing the link back to the new file, and
6834 # tests might fail. Prefer to keep the relevant files in their own
6835 # directory and symlink the directory instead.
6836 # UNLINK is used to remove symlinks from older development versions
6837 # that might get into the way when doing "git update" without doing
6838 # a "make distclean" in between.
6839 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6840 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6841 DIRS="$DIRS docs docs/interop fsdev scsi"
6842 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6843 DIRS="$DIRS roms/seabios"
6844 DIRS="$DIRS contrib/plugins/"
6845 LINKS="Makefile"
6846 LINKS="$LINKS tests/tcg/lm32/Makefile"
6847 LINKS="$LINKS tests/tcg/Makefile.target"
6848 LINKS="$LINKS pc-bios/optionrom/Makefile"
6849 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6850 LINKS="$LINKS roms/seabios/Makefile"
6851 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6852 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6853 LINKS="$LINKS tests/acceptance tests/data"
6854 LINKS="$LINKS tests/qemu-iotests/check"
6855 LINKS="$LINKS python"
6856 LINKS="$LINKS contrib/plugins/Makefile "
6857 UNLINK="pc-bios/keymaps"
6858 for bios_file in \
6859     $source_path/pc-bios/*.bin \
6860     $source_path/pc-bios/*.elf \
6861     $source_path/pc-bios/*.lid \
6862     $source_path/pc-bios/*.rom \
6863     $source_path/pc-bios/*.dtb \
6864     $source_path/pc-bios/*.img \
6865     $source_path/pc-bios/openbios-* \
6866     $source_path/pc-bios/u-boot.* \
6867     $source_path/pc-bios/edk2-*.fd.bz2 \
6868     $source_path/pc-bios/palcode-*
6869 do
6870     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6871 done
6872 mkdir -p $DIRS
6873 for f in $LINKS ; do
6874     if [ -e "$source_path/$f" ]; then
6875         symlink "$source_path/$f" "$f"
6876     fi
6877 done
6878 for f in $UNLINK ; do
6879     if [ -L "$f" ]; then
6880         rm -f "$f"
6881     fi
6882 done
6883
6884 (for i in $cross_cc_vars; do
6885   export $i
6886 done
6887 export target_list source_path use_containers
6888 $source_path/tests/tcg/configure.sh)
6889
6890 # temporary config to build submodules
6891 for rom in seabios; do
6892     config_mak=roms/$rom/config.mak
6893     echo "# Automatically generated by configure - do not modify" > $config_mak
6894     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6895     echo "AS=$as" >> $config_mak
6896     echo "CCAS=$ccas" >> $config_mak
6897     echo "CC=$cc" >> $config_mak
6898     echo "BCC=bcc" >> $config_mak
6899     echo "CPP=$cpp" >> $config_mak
6900     echo "OBJCOPY=objcopy" >> $config_mak
6901     echo "IASL=$iasl" >> $config_mak
6902     echo "LD=$ld" >> $config_mak
6903     echo "RANLIB=$ranlib" >> $config_mak
6904 done
6905
6906 # set up qemu-iotests in this build directory
6907 iotests_common_env="tests/qemu-iotests/common.env"
6908
6909 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
6910 echo >> "$iotests_common_env"
6911 echo "export PYTHON='$python'" >> "$iotests_common_env"
6912
6913 if test "$skip_meson" = no; then
6914 cross="config-meson.cross.new"
6915 meson_quote() {
6916     echo "'$(echo $* | sed "s/ /','/g")'"
6917 }
6918
6919 echo "# Automatically generated by configure - do not modify" > $cross
6920 echo "[properties]" >> $cross
6921 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6922 echo "[built-in options]" >> $cross
6923 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6924 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6925 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6926 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6927 echo "[binaries]" >> $cross
6928 echo "c = [$(meson_quote $cc)]" >> $cross
6929 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6930 echo "ar = [$(meson_quote $ar)]" >> $cross
6931 echo "nm = [$(meson_quote $nm)]" >> $cross
6932 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6933 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6934 if has $sdl2_config; then
6935   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6936 fi
6937 echo "strip = [$(meson_quote $strip)]" >> $cross
6938 echo "windres = [$(meson_quote $windres)]" >> $cross
6939 if test -n "$cross_prefix"; then
6940     cross_arg="--cross-file config-meson.cross"
6941     echo "[host_machine]" >> $cross
6942     if test "$mingw32" = "yes" ; then
6943         echo "system = 'windows'" >> $cross
6944     fi
6945     if test "$linux" = "yes" ; then
6946         echo "system = 'linux'" >> $cross
6947     fi
6948     case "$ARCH" in
6949         i386|x86_64)
6950             echo "cpu_family = 'x86'" >> $cross
6951             ;;
6952         ppc64le)
6953             echo "cpu_family = 'ppc64'" >> $cross
6954             ;;
6955         *)
6956             echo "cpu_family = '$ARCH'" >> $cross
6957             ;;
6958     esac
6959     echo "cpu = '$cpu'" >> $cross
6960     if test "$bigendian" = "yes" ; then
6961         echo "endian = 'big'" >> $cross
6962     else
6963         echo "endian = 'little'" >> $cross
6964     fi
6965 else
6966     cross_arg="--native-file config-meson.cross"
6967 fi
6968 mv $cross config-meson.cross
6969
6970 rm -rf meson-private meson-info meson-logs
6971 NINJA=$ninja $meson setup \
6972         --prefix "$prefix" \
6973         --libdir "$libdir" \
6974         --libexecdir "$libexecdir" \
6975         --bindir "$bindir" \
6976         --includedir "$includedir" \
6977         --datadir "$datadir" \
6978         --mandir "$mandir" \
6979         --sysconfdir "$sysconfdir" \
6980         --localedir "$localedir" \
6981         --localstatedir "$local_statedir" \
6982         -Ddocdir="$docdir" \
6983         -Dqemu_firmwarepath="$firmwarepath" \
6984         -Dqemu_suffix="$qemu_suffix" \
6985         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6986         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6987         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6988         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6989         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6990         -Db_staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6991         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6992         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6993         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
6994         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6995         -Dcocoa=$cocoa -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6996         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6997         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f \
6998         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt \
6999         -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
7000         -Ddocs=$docs -Dsphinx_build=$sphinx_build \
7001         $cross_arg \
7002         "$PWD" "$source_path"
7003
7004 if test "$?" -ne 0 ; then
7005     error_exit "meson setup failed"
7006 fi
7007 fi
7008
7009 if test -n "${deprecated_features}"; then
7010     echo "Warning, deprecated features enabled."
7011     echo "Please see docs/system/deprecated.rst"
7012     echo "  features: ${deprecated_features}"
7013 fi
7014
7015 # Save the configure command line for later reuse.
7016 cat <<EOD >config.status
7017 #!/bin/sh
7018 # Generated by configure.
7019 # Run this file to recreate the current configuration.
7020 # Compiler output produced by configure, useful for debugging
7021 # configure, is in config.log if it exists.
7022 EOD
7023
7024 preserve_env() {
7025     envname=$1
7026
7027     eval envval=\$$envname
7028
7029     if test -n "$envval"
7030     then
7031         echo "$envname='$envval'" >> config.status
7032         echo "export $envname" >> config.status
7033     else
7034         echo "unset $envname" >> config.status
7035     fi
7036 }
7037
7038 # Preserve various env variables that influence what
7039 # features/build target configure will detect
7040 preserve_env AR
7041 preserve_env AS
7042 preserve_env CC
7043 preserve_env CPP
7044 preserve_env CXX
7045 preserve_env INSTALL
7046 preserve_env LD
7047 preserve_env LD_LIBRARY_PATH
7048 preserve_env LIBTOOL
7049 preserve_env MAKE
7050 preserve_env NM
7051 preserve_env OBJCOPY
7052 preserve_env PATH
7053 preserve_env PKG_CONFIG
7054 preserve_env PKG_CONFIG_LIBDIR
7055 preserve_env PKG_CONFIG_PATH
7056 preserve_env PYTHON
7057 preserve_env SDL2_CONFIG
7058 preserve_env SMBD
7059 preserve_env STRIP
7060 preserve_env WINDRES
7061
7062 printf "exec" >>config.status
7063 for i in "$0" "$@"; do
7064   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
7065 done
7066 echo ' "$@"' >>config.status
7067 chmod +x config.status
7068
7069 rm -r "$TMPDIR1"