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}/${TMPB}.cxx"
  80 TMPM="${TMPDIR1}/${TMPB}.m"
  81 TMPE="${TMPDIR1}/${TMPB}.exe"
  82
  83 rm -f config.log
  84
  85 # Print a helpful header at the top of config.log
  86 echo "# QEMU configure log $(date)" >> config.log
  87 printf "# Configured with:" >> config.log
  88 printf " '%s'" "$0" "$@" >> config.log
  89 echo >> config.log
  90 echo "#" >> config.log
  91
  92 quote_sh() {
  93     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  94 }
  95
  96 print_error() {
  97     (echo
  98     echo "ERROR: $1"
  99     while test -n "$2"; do
 100         echo "       $2"
 101         shift
 102     done
 103     echo) >&2
 104 }
 105
 106 error_exit() {
 107     print_error "$@"
 108     exit 1
 109 }
 110
 111 do_compiler() {
 112     # Run the compiler, capturing its output to the log. First argument
 113     # is compiler binary to execute.
 114     compiler="$1"
 115     shift
 116     if test -n "$BASH_VERSION"; then eval '
 117         echo >>config.log "
 118 funcs: ${FUNCNAME[*]}
 119 lines: ${BASH_LINENO[*]}"
 120     '; fi
 121     echo $compiler "$@" >> config.log
 122     $compiler "$@" >> config.log 2>&1 || return $?
 123     # Test passed. If this is an --enable-werror build, rerun
 124     # the test with -Werror and bail out if it fails. This
 125     # makes warning-generating-errors in configure test code
 126     # obvious to developers.
 127     if test "$werror" != "yes"; then
 128         return 0
 129     fi
 130     # Don't bother rerunning the compile if we were already using -Werror
 131     case "$*" in
 132         *-Werror*)
 133            return 0
 134         ;;
 135     esac
 136     echo $compiler -Werror "$@" >> config.log
 137     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 138     error_exit "configure test passed without -Werror but failed with -Werror." \
 139         "This is probably a bug in the configure script. The failing command" \
 140         "will be at the bottom of config.log." \
 141         "You can run configure with --disable-werror to bypass this check."
 142 }
 143
 144 do_cc() {
 145     do_compiler "$cc" $CPU_CFLAGS "$@"
 146 }
 147
 148 do_cxx() {
 149     do_compiler "$cxx" $CPU_CFLAGS "$@"
 150 }
 151
 152 do_objc() {
 153     do_compiler "$objcc" $CPU_CFLAGS "$@"
 154 }
 155
 156 # Append $2 to the variable named $1, with space separation
 157 add_to() {
 158     eval $1=\${$1:+\"\$$1 \"}\$2
 159 }
 160
 161 update_cxxflags() {
 162     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 163     # options which some versions of GCC's C++ compiler complain about
 164     # because they only make sense for C programs.
 165     QEMU_CXXFLAGS="-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 166     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu11/-std=gnu++11/)
 167     for arg in $QEMU_CFLAGS; do
 168         case $arg in
 169             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 170             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 171                 ;;
 172             *)
 173                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 174                 ;;
 175         esac
 176     done
 177 }
 178
 179 compile_object() {
 180   local_cflags="$1"
 181   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 182 }
 183
 184 compile_prog() {
 185   local_cflags="$1"
 186   local_ldflags="$2"
 187   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 188       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 189 }
 190
 191 # symbolically link $1 to $2.  Portable version of "ln -sf".
 192 symlink() {
 193   rm -rf "$2"
 194   mkdir -p "$(dirname "$2")"
 195   ln -s "$1" "$2"
 196 }
 197
 198 # check whether a command is available to this shell (may be either an
 199 # executable or a builtin)
 200 has() {
 201     type "$1" >/dev/null 2>&1
 202 }
 203
 204 version_ge () {
 205     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 206     local_ver2=$(echo "$2" | tr . ' ')
 207     while true; do
 208         set x $local_ver1
 209         local_first=${2-0}
 210         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 211         shift ${2:+2}
 212         local_ver1=$*
 213         set x $local_ver2
 214         # the second argument finished, the first must be greater or equal
 215         test $# = 1 && return 0
 216         test $local_first -lt $2 && return 1
 217         test $local_first -gt $2 && return 0
 218         shift ${2:+2}
 219         local_ver2=$*
 220     done
 221 }
 222
 223 glob() {
 224     eval test -z '"${1#'"$2"'}"'
 225 }
 226
 227 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 228 then
 229   error_exit "main directory cannot contain spaces nor colons"
 230 fi
 231
 232 # default parameters
 233 cpu=""
 234 interp_prefix="/usr/gnemul/qemu-%M"
 235 static="no"
 236 cross_compile="no"
 237 cross_prefix=""
 238 block_drv_rw_whitelist=""
 239 block_drv_ro_whitelist=""
 240 host_cc="cc"
 241 lto="false"
 242 stack_protector=""
 243 safe_stack=""
 244 use_containers="yes"
 245 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 246
 247 if test -e "$source_path/.git"
 248 then
 249     git_submodules_action="update"
 250 else
 251     git_submodules_action="ignore"
 252 fi
 253
 254 git_submodules="ui/keycodemapdb"
 255 git="git"
 256
 257 # Don't accept a target_list environment variable.
 258 unset target_list
 259 unset target_list_exclude
 260
 261 # Default value for a variable defining feature "foo".
 262 #  * foo="no"  feature will only be used if --enable-foo arg is given
 263 #  * foo=""    feature will be searched for, and if found, will be used
 264 #              unless --disable-foo is given
 265 #  * foo="yes" this value will only be set by --enable-foo flag.
 266 #              feature will searched for,
 267 #              if not found, configure exits with error
 268 #
 269 # Always add --enable-foo and --disable-foo command line args.
 270 # Distributions want to ensure that several features are compiled in, and it
 271 # is impossible without a --enable-foo that exits if a feature is not found.
 272
 273 default_feature=""
 274 # parse CC options second
 275 for opt do
 276   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 277   case "$opt" in
 278       --without-default-features)
 279           default_feature="no"
 280   ;;
 281   esac
 282 done
 283
 284 EXTRA_CFLAGS=""
 285 EXTRA_CXXFLAGS=""
 286 EXTRA_OBJCFLAGS=""
 287 EXTRA_LDFLAGS=""
 288
 289 vhost_kernel="$default_feature"
 290 vhost_net="$default_feature"
 291 vhost_crypto="$default_feature"
 292 vhost_scsi="$default_feature"
 293 vhost_vsock="$default_feature"
 294 vhost_user="no"
 295 vhost_user_fs="$default_feature"
 296 vhost_vdpa="$default_feature"
 297 debug_info="yes"
 298 debug_tcg="no"
 299 debug="no"
 300 sanitizers="no"
 301 tsan="no"
 302 fortify_source="yes"
 303 gcov="no"
 304 EXESUF=""
 305 modules="no"
 306 prefix="/usr/local"
 307 qemu_suffix="qemu"
 308 softmmu="yes"
 309 linux_user=""
 310 bsd_user=""
 311 pkgversion=""
 312 pie=""
 313 coroutine=""
 314 plugins="$default_feature"
 315 meson=""
 316 meson_args=""
 317 ninja=""
 318 skip_meson=no
 319
 320 # The following Meson options are handled manually (still they
 321 # are included in the automatically generated help message)
 322
 323 # 1. Track which submodules are needed
 324 if test "$default_feature" = no ; then
 325   capstone="disabled"
 326   slirp="disabled"
 327 else
 328   capstone="auto"
 329   slirp="auto"
 330 fi
 331 fdt="auto"
 332
 333 # 2. Support --with/--without option
 334 default_devices="true"
 335
 336 # 3. Automatically enable/disable other options
 337 tcg="enabled"
 338 cfi="false"
 339
 340 # parse CC options second
 341 for opt do
 342   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 343   case "$opt" in
 344   --cross-prefix=*) cross_prefix="$optarg"
 345                     cross_compile="yes"
 346   ;;
 347   --cc=*) CC="$optarg"
 348   ;;
 349   --cxx=*) CXX="$optarg"
 350   ;;
 351   --cpu=*) cpu="$optarg"
 352   ;;
 353   --extra-cflags=*)
 354     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 355     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 356     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 357     ;;
 358   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 359   ;;
 360   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 361   ;;
 362   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 363   ;;
 364   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 365   ;;
 366   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 367                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 368                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 369   ;;
 370   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 371                 eval "cross_cc_${cc_arch}=\$optarg"
 372                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 373   ;;
 374   esac
 375 done
 376 # OS specific
 377 # Using uname is really, really broken.  Once we have the right set of checks
 378 # we can eliminate its usage altogether.
 379
 380 # Preferred compiler:
 381 #  ${CC} (if set)
 382 #  ${cross_prefix}gcc (if cross-prefix specified)
 383 #  system compiler
 384 if test -z "${CC}${cross_prefix}"; then
 385   cc="$host_cc"
 386 else
 387   cc="${CC-${cross_prefix}gcc}"
 388 fi
 389
 390 if test -z "${CXX}${cross_prefix}"; then
 391   cxx="c++"
 392 else
 393   cxx="${CXX-${cross_prefix}g++}"
 394 fi
 395
 396 ar="${AR-${cross_prefix}ar}"
 397 as="${AS-${cross_prefix}as}"
 398 ccas="${CCAS-$cc}"
 399 cpp="${CPP-$cc -E}"
 400 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 401 ld="${LD-${cross_prefix}ld}"
 402 ranlib="${RANLIB-${cross_prefix}ranlib}"
 403 nm="${NM-${cross_prefix}nm}"
 404 smbd="$SMBD"
 405 strip="${STRIP-${cross_prefix}strip}"
 406 widl="${WIDL-${cross_prefix}widl}"
 407 windres="${WINDRES-${cross_prefix}windres}"
 408 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 409 query_pkg_config() {
 410     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 411 }
 412 pkg_config=query_pkg_config
 413 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 414
 415 # default flags for all hosts
 416 # We use -fwrapv to tell the compiler that we require a C dialect where
 417 # left shift of signed integers is well defined and has the expected
 418 # 2s-complement style results. (Both clang and gcc agree that it
 419 # provides these semantics.)
 420 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 421 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 422 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 423 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 424
 425 QEMU_LDFLAGS=
 426
 427 # Flags that are needed during configure but later taken care of by Meson
 428 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 429 CONFIGURE_LDFLAGS=
 430
 431
 432 check_define() {
 433 cat > $TMPC <<EOF
 434 #if !defined($1)
 435 #error $1 not defined
 436 #endif
 437 int main(void) { return 0; }
 438 EOF
 439   compile_object
 440 }
 441
 442 check_include() {
 443 cat > $TMPC <<EOF
 444 #include <$1>
 445 int main(void) { return 0; }
 446 EOF
 447   compile_object
 448 }
 449
 450 write_c_skeleton() {
 451     cat > $TMPC <<EOF
 452 int main(void) { return 0; }
 453 EOF
 454 }
 455
 456 if check_define __linux__ ; then
 457   targetos=linux
 458 elif check_define _WIN32 ; then
 459   targetos=windows
 460 elif check_define __OpenBSD__ ; then
 461   targetos=openbsd
 462 elif check_define __sun__ ; then
 463   targetos=sunos
 464 elif check_define __HAIKU__ ; then
 465   targetos=haiku
 466 elif check_define __FreeBSD__ ; then
 467   targetos=freebsd
 468 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 469   targetos=gnu/kfreebsd
 470 elif check_define __DragonFly__ ; then
 471   targetos=dragonfly
 472 elif check_define __NetBSD__; then
 473   targetos=netbsd
 474 elif check_define __APPLE__; then
 475   targetos=darwin
 476 else
 477   # This is a fatal error, but don't report it yet, because we
 478   # might be going to just print the --help text, or it might
 479   # be the result of a missing compiler.
 480   targetos=bogus
 481 fi
 482
 483 # OS specific
 484
 485 mingw32="no"
 486 bsd="no"
 487 linux="no"
 488 solaris="no"
 489 case $targetos in
 490 windows)
 491   mingw32="yes"
 492   plugins="no"
 493   pie="no"
 494 ;;
 495 gnu/kfreebsd)
 496   bsd="yes"
 497 ;;
 498 freebsd)
 499   bsd="yes"
 500   make="${MAKE-gmake}"
 501   # needed for kinfo_getvmmap(3) in libutil.h
 502 ;;
 503 dragonfly)
 504   bsd="yes"
 505   make="${MAKE-gmake}"
 506 ;;
 507 netbsd)
 508   bsd="yes"
 509   make="${MAKE-gmake}"
 510 ;;
 511 openbsd)
 512   bsd="yes"
 513   make="${MAKE-gmake}"
 514 ;;
 515 darwin)
 516   bsd="yes"
 517   darwin="yes"
 518   # Disable attempts to use ObjectiveC features in os/object.h since they
 519   # won't work when we're compiling with gcc as a C compiler.
 520   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 521 ;;
 522 sunos)
 523   solaris="yes"
 524   make="${MAKE-gmake}"
 525 # needed for CMSG_ macros in sys/socket.h
 526   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 527 # needed for TIOCWIN* defines in termios.h
 528   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 529   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 530   # Note that this check is broken for cross-compilation: if you're
 531   # cross-compiling to one of these OSes then you'll need to specify
 532   # the correct CPU with the --cpu option.
 533   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 534     cpu="x86_64"
 535   fi
 536 ;;
 537 haiku)
 538   pie="no"
 539   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 540 ;;
 541 linux)
 542   linux="yes"
 543   vhost_user=${default_feature:-yes}
 544 ;;
 545 esac
 546
 547 if test ! -z "$cpu" ; then
 548   # command line argument
 549   :
 550 elif check_define __i386__ ; then
 551   cpu="i386"
 552 elif check_define __x86_64__ ; then
 553   if check_define __ILP32__ ; then
 554     cpu="x32"
 555   else
 556     cpu="x86_64"
 557   fi
 558 elif check_define __sparc__ ; then
 559   if check_define __arch64__ ; then
 560     cpu="sparc64"
 561   else
 562     cpu="sparc"
 563   fi
 564 elif check_define _ARCH_PPC ; then
 565   if check_define _ARCH_PPC64 ; then
 566     if check_define _LITTLE_ENDIAN ; then
 567       cpu="ppc64le"
 568     else
 569       cpu="ppc64"
 570     fi
 571   else
 572     cpu="ppc"
 573   fi
 574 elif check_define __mips__ ; then
 575   cpu="mips"
 576 elif check_define __s390__ ; then
 577   if check_define __s390x__ ; then
 578     cpu="s390x"
 579   else
 580     cpu="s390"
 581   fi
 582 elif check_define __riscv ; then
 583   cpu="riscv"
 584 elif check_define __arm__ ; then
 585   cpu="arm"
 586 elif check_define __aarch64__ ; then
 587   cpu="aarch64"
 588 elif check_define __loongarch64 ; then
 589   cpu="loongarch64"
 590 else
 591   cpu=$(uname -m)
 592 fi
 593
 594 # Normalise host CPU name, set multilib cflags
 595 # Note that this case should only have supported host CPUs, not guests.
 596 case "$cpu" in
 597   armv*b|armv*l|arm)
 598     cpu="arm" ;;
 599
 600   i386|i486|i586|i686|i86pc|BePC)
 601     cpu="i386"
 602     CPU_CFLAGS="-m32" ;;
 603   x32)
 604     cpu="x86_64"
 605     CPU_CFLAGS="-mx32" ;;
 606   x86_64|amd64)
 607     cpu="x86_64"
 608     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 609     # If we truly care, we should simply detect this case at
 610     # runtime and generate the fallback to serial emulation.
 611     CPU_CFLAGS="-m64 -mcx16" ;;
 612
 613   mips*)
 614     cpu="mips" ;;
 615
 616   ppc)
 617     CPU_CFLAGS="-m32" ;;
 618   ppc64)
 619     CPU_CFLAGS="-m64 -mbig-endian" ;;
 620   ppc64le)
 621     cpu="ppc64"
 622     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 623
 624   s390)
 625     CPU_CFLAGS="-m31" ;;
 626   s390x)
 627     CPU_CFLAGS="-m64" ;;
 628
 629   sparc|sun4[cdmuv])
 630     cpu="sparc"
 631     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 632   sparc64)
 633     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 634 esac
 635
 636 : ${make=${MAKE-make}}
 637
 638 # We prefer python 3.x. A bare 'python' is traditionally
 639 # python 2.x, but some distros have it as python 3.x, so
 640 # we check that too
 641 python=
 642 explicit_python=no
 643 for binary in "${PYTHON-python3}" python
 644 do
 645     if has "$binary"
 646     then
 647         python=$(command -v "$binary")
 648         break
 649     fi
 650 done
 651
 652
 653 # Check for ancillary tools used in testing
 654 genisoimage=
 655 for binary in genisoimage mkisofs
 656 do
 657     if has $binary
 658     then
 659         genisoimage=$(command -v "$binary")
 660         break
 661     fi
 662 done
 663
 664 # Default objcc to clang if available, otherwise use CC
 665 if has clang; then
 666   objcc=clang
 667 else
 668   objcc="$cc"
 669 fi
 670
 671 if test "$mingw32" = "yes" ; then
 672   EXESUF=".exe"
 673   # MinGW needs -mthreads for TLS and macro _MT.
 674   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 675   write_c_skeleton;
 676   prefix="/qemu"
 677   qemu_suffix=""
 678 fi
 679
 680 werror=""
 681
 682 . $source_path/scripts/meson-buildoptions.sh
 683
 684 meson_options=
 685 meson_option_parse() {
 686   meson_options="$meson_options $(_meson_option_parse "$@")"
 687   if test $? -eq 1; then
 688     echo "ERROR: unknown option $1"
 689     echo "Try '$0 --help' for more information"
 690     exit 1
 691   fi
 692 }
 693
 694 for opt do
 695   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 696   case "$opt" in
 697   --help|-h) show_help=yes
 698   ;;
 699   --version|-V) exec cat $source_path/VERSION
 700   ;;
 701   --prefix=*) prefix="$optarg"
 702   ;;
 703   --interp-prefix=*) interp_prefix="$optarg"
 704   ;;
 705   --cross-prefix=*)
 706   ;;
 707   --cc=*)
 708   ;;
 709   --host-cc=*) host_cc="$optarg"
 710   ;;
 711   --cxx=*)
 712   ;;
 713   --objcc=*) objcc="$optarg"
 714   ;;
 715   --make=*) make="$optarg"
 716   ;;
 717   --install=*)
 718   ;;
 719   --python=*) python="$optarg" ; explicit_python=yes
 720   ;;
 721   --skip-meson) skip_meson=yes
 722   ;;
 723   --meson=*) meson="$optarg"
 724   ;;
 725   --ninja=*) ninja="$optarg"
 726   ;;
 727   --smbd=*) smbd="$optarg"
 728   ;;
 729   --extra-cflags=*)
 730   ;;
 731   --extra-cxxflags=*)
 732   ;;
 733   --extra-objcflags=*)
 734   ;;
 735   --extra-ldflags=*)
 736   ;;
 737   --cross-cc-*)
 738   ;;
 739   --enable-debug-info) debug_info="yes"
 740   ;;
 741   --disable-debug-info) debug_info="no"
 742   ;;
 743   --enable-modules)
 744       modules="yes"
 745   ;;
 746   --disable-modules)
 747       modules="no"
 748   ;;
 749   --cpu=*)
 750   ;;
 751   --target-list=*) target_list="$optarg"
 752                    if test "$target_list_exclude"; then
 753                        error_exit "Can't mix --target-list with --target-list-exclude"
 754                    fi
 755   ;;
 756   --target-list-exclude=*) target_list_exclude="$optarg"
 757                    if test "$target_list"; then
 758                        error_exit "Can't mix --target-list-exclude with --target-list"
 759                    fi
 760   ;;
 761   --with-default-devices) default_devices="true"
 762   ;;
 763   --without-default-devices) default_devices="false"
 764   ;;
 765   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 766   ;;
 767   --with-devices-*) device_arch=${opt#--with-devices-};
 768                     device_arch=${device_arch%%=*}
 769                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 770                     if test -f "$cf"; then
 771                         device_archs="$device_archs $device_arch"
 772                         eval "devices_${device_arch}=\$optarg"
 773                     else
 774                         error_exit "File $cf does not exist"
 775                     fi
 776   ;;
 777   --without-default-features) # processed above
 778   ;;
 779   --enable-gcov) gcov="yes"
 780   ;;
 781   --static)
 782     static="yes"
 783     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 784   ;;
 785   --mandir=*) mandir="$optarg"
 786   ;;
 787   --bindir=*) bindir="$optarg"
 788   ;;
 789   --libdir=*) libdir="$optarg"
 790   ;;
 791   --libexecdir=*) libexecdir="$optarg"
 792   ;;
 793   --includedir=*) includedir="$optarg"
 794   ;;
 795   --datadir=*) datadir="$optarg"
 796   ;;
 797   --with-suffix=*) qemu_suffix="$optarg"
 798   ;;
 799   --docdir=*) docdir="$optarg"
 800   ;;
 801   --localedir=*) localedir="$optarg"
 802   ;;
 803   --sysconfdir=*) sysconfdir="$optarg"
 804   ;;
 805   --localstatedir=*) local_statedir="$optarg"
 806   ;;
 807   --firmwarepath=*) firmwarepath="$optarg"
 808   ;;
 809   --host=*|--build=*|\
 810   --disable-dependency-tracking|\
 811   --sbindir=*|--sharedstatedir=*|\
 812   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 813   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 814     # These switches are silently ignored, for compatibility with
 815     # autoconf-generated configure scripts. This allows QEMU's
 816     # configure to be used by RPM and similar macros that set
 817     # lots of directory switches by default.
 818   ;;
 819   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 820   ;;
 821   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 822   ;;
 823   --enable-debug-tcg) debug_tcg="yes"
 824   ;;
 825   --disable-debug-tcg) debug_tcg="no"
 826   ;;
 827   --enable-debug)
 828       # Enable debugging options that aren't excessively noisy
 829       debug_tcg="yes"
 830       meson_option_parse --enable-debug-mutex ""
 831       debug="yes"
 832       fortify_source="no"
 833   ;;
 834   --enable-sanitizers) sanitizers="yes"
 835   ;;
 836   --disable-sanitizers) sanitizers="no"
 837   ;;
 838   --enable-tsan) tsan="yes"
 839   ;;
 840   --disable-tsan) tsan="no"
 841   ;;
 842   --disable-slirp) slirp="disabled"
 843   ;;
 844   --enable-slirp) slirp="enabled"
 845   ;;
 846   --enable-slirp=git) slirp="internal"
 847   ;;
 848   --enable-slirp=*) slirp="$optarg"
 849   ;;
 850   --disable-tcg) tcg="disabled"
 851                  plugins="no"
 852   ;;
 853   --enable-tcg) tcg="enabled"
 854   ;;
 855   --disable-system) softmmu="no"
 856   ;;
 857   --enable-system) softmmu="yes"
 858   ;;
 859   --disable-user)
 860       linux_user="no" ;
 861       bsd_user="no" ;
 862   ;;
 863   --enable-user) ;;
 864   --disable-linux-user) linux_user="no"
 865   ;;
 866   --enable-linux-user) linux_user="yes"
 867   ;;
 868   --disable-bsd-user) bsd_user="no"
 869   ;;
 870   --enable-bsd-user) bsd_user="yes"
 871   ;;
 872   --enable-pie) pie="yes"
 873   ;;
 874   --disable-pie) pie="no"
 875   ;;
 876   --enable-werror) werror="yes"
 877   ;;
 878   --disable-werror) werror="no"
 879   ;;
 880   --enable-lto) lto="true"
 881   ;;
 882   --disable-lto) lto="false"
 883   ;;
 884   --enable-stack-protector) stack_protector="yes"
 885   ;;
 886   --disable-stack-protector) stack_protector="no"
 887   ;;
 888   --enable-safe-stack) safe_stack="yes"
 889   ;;
 890   --disable-safe-stack) safe_stack="no"
 891   ;;
 892   --enable-cfi)
 893       cfi="true";
 894       lto="true";
 895   ;;
 896   --disable-cfi) cfi="false"
 897   ;;
 898   --disable-fdt) fdt="disabled"
 899   ;;
 900   --enable-fdt) fdt="enabled"
 901   ;;
 902   --enable-fdt=git) fdt="internal"
 903   ;;
 904   --enable-fdt=*) fdt="$optarg"
 905   ;;
 906   --with-pkgversion=*) pkgversion="$optarg"
 907   ;;
 908   --with-coroutine=*) coroutine="$optarg"
 909   ;;
 910   --disable-vhost-net) vhost_net="no"
 911   ;;
 912   --enable-vhost-net) vhost_net="yes"
 913   ;;
 914   --disable-vhost-crypto) vhost_crypto="no"
 915   ;;
 916   --enable-vhost-crypto) vhost_crypto="yes"
 917   ;;
 918   --disable-vhost-scsi) vhost_scsi="no"
 919   ;;
 920   --enable-vhost-scsi) vhost_scsi="yes"
 921   ;;
 922   --disable-vhost-vsock) vhost_vsock="no"
 923   ;;
 924   --enable-vhost-vsock) vhost_vsock="yes"
 925   ;;
 926   --disable-vhost-user-fs) vhost_user_fs="no"
 927   ;;
 928   --enable-vhost-user-fs) vhost_user_fs="yes"
 929   ;;
 930   --disable-zlib-test)
 931   ;;
 932   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
 933       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
 934   ;;
 935   --enable-vhdx|--disable-vhdx)
 936       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
 937   ;;
 938   --enable-uuid|--disable-uuid)
 939       echo "$0: $opt is obsolete, UUID support is always built" >&2
 940   ;;
 941   --disable-vhost-user) vhost_user="no"
 942   ;;
 943   --enable-vhost-user) vhost_user="yes"
 944   ;;
 945   --disable-vhost-vdpa) vhost_vdpa="no"
 946   ;;
 947   --enable-vhost-vdpa) vhost_vdpa="yes"
 948   ;;
 949   --disable-vhost-kernel) vhost_kernel="no"
 950   ;;
 951   --enable-vhost-kernel) vhost_kernel="yes"
 952   ;;
 953   --disable-capstone) capstone="disabled"
 954   ;;
 955   --enable-capstone) capstone="enabled"
 956   ;;
 957   --enable-capstone=git) capstone="internal"
 958   ;;
 959   --enable-capstone=*) capstone="$optarg"
 960   ;;
 961   --with-git=*) git="$optarg"
 962   ;;
 963   --with-git-submodules=*)
 964       git_submodules_action="$optarg"
 965   ;;
 966   --enable-plugins) if test "$mingw32" = "yes"; then
 967                         error_exit "TCG plugins not currently supported on Windows platforms"
 968                     else
 969                         plugins="yes"
 970                     fi
 971   ;;
 972   --disable-plugins) plugins="no"
 973   ;;
 974   --enable-containers) use_containers="yes"
 975   ;;
 976   --disable-containers) use_containers="no"
 977   ;;
 978   --gdb=*) gdb_bin="$optarg"
 979   ;;
 980   # backwards compatibility options
 981   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
 982   ;;
 983   --disable-blobs) meson_option_parse --disable-install-blobs ""
 984   ;;
 985   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
 986   ;;
 987   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
 988   ;;
 989   # everything else has the same name in configure and meson
 990   --*) meson_option_parse "$opt" "$optarg"
 991   ;;
 992   esac
 993 done
 994
 995 # test for any invalid configuration combinations
 996 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 997     error_exit "Can't enable plugins on non-TCG builds"
 998 fi
 999
1000 case $git_submodules_action in
1001     update|validate)
1002         if test ! -e "$source_path/.git"; then
1003             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1004             exit 1
1005         fi
1006     ;;
1007     ignore)
1008         if ! test -f "$source_path/ui/keycodemapdb/README"
1009         then
1010             echo
1011             echo "ERROR: missing GIT submodules"
1012             echo
1013             if test -e "$source_path/.git"; then
1014                 echo "--with-git-submodules=ignore specified but submodules were not"
1015                 echo "checked out.  Please initialize and update submodules."
1016             else
1017                 echo "This is not a GIT checkout but module content appears to"
1018                 echo "be missing. Do not use 'git archive' or GitHub download links"
1019                 echo "to acquire QEMU source archives. Non-GIT builds are only"
1020                 echo "supported with source archives linked from:"
1021                 echo
1022                 echo "  https://www.qemu.org/download/#source"
1023                 echo
1024                 echo "Developers working with GIT can use scripts/archive-source.sh"
1025                 echo "if they need to create valid source archives."
1026             fi
1027             echo
1028             exit 1
1029         fi
1030     ;;
1031     *)
1032         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1033         exit 1
1034     ;;
1035 esac
1036
1037 libdir="${libdir:-$prefix/lib}"
1038 libexecdir="${libexecdir:-$prefix/libexec}"
1039 includedir="${includedir:-$prefix/include}"
1040
1041 if test "$mingw32" = "yes" ; then
1042     bindir="${bindir:-$prefix}"
1043 else
1044     bindir="${bindir:-$prefix/bin}"
1045 fi
1046 mandir="${mandir:-$prefix/share/man}"
1047 datadir="${datadir:-$prefix/share}"
1048 docdir="${docdir:-$prefix/share/doc}"
1049 sysconfdir="${sysconfdir:-$prefix/etc}"
1050 local_statedir="${local_statedir:-$prefix/var}"
1051 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1052 localedir="${localedir:-$datadir/locale}"
1053
1054 if eval test -z "\${cross_cc_$cpu}"; then
1055     eval "cross_cc_${cpu}=\$cc"
1056     cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1057 fi
1058
1059 default_target_list=""
1060 mak_wilds=""
1061
1062 if [ "$linux_user" != no ]; then
1063     if [ "$targetos" = linux ] && [ -d $source_path/linux-user/include/host/$cpu ]; then
1064         linux_user=yes
1065     elif [ "$linux_user" = yes ]; then
1066         error_exit "linux-user not supported on this architecture"
1067     fi
1068 fi
1069 if [ "$bsd_user" != no ]; then
1070     if [ "$bsd_user" = "" ]; then
1071         test $targetos = freebsd && bsd_user=yes
1072     fi
1073     if [ "$bsd_user" = yes ] && ! [ -d $source_path/bsd-user/$targetos ]; then
1074         error_exit "bsd-user not supported on this host OS"
1075     fi
1076 fi
1077 if [ "$softmmu" = "yes" ]; then
1078     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
1079 fi
1080 if [ "$linux_user" = "yes" ]; then
1081     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
1082 fi
1083 if [ "$bsd_user" = "yes" ]; then
1084     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
1085 fi
1086
1087 for config in $mak_wilds; do
1088     target="$(basename "$config" .mak)"
1089     if echo "$target_list_exclude" | grep -vq "$target"; then
1090         default_target_list="${default_target_list} $target"
1091     fi
1092 done
1093
1094 if test x"$show_help" = x"yes" ; then
1095 cat << EOF
1096
1097 Usage: configure [options]
1098 Options: [defaults in brackets after descriptions]
1099
1100 Standard options:
1101   --help                   print this message
1102   --prefix=PREFIX          install in PREFIX [$prefix]
1103   --interp-prefix=PREFIX   where to find shared libraries, etc.
1104                            use %M for cpu name [$interp_prefix]
1105   --target-list=LIST       set target list (default: build all)
1106 $(echo Available targets: $default_target_list | \
1107   fold -s -w 53 | sed -e 's/^/                           /')
1108   --target-list-exclude=LIST exclude a set of targets from the default target-list
1109
1110 Advanced options (experts only):
1111   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1112   --cc=CC                  use C compiler CC [$cc]
1113   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1114                            build time
1115   --cxx=CXX                use C++ compiler CXX [$cxx]
1116   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1117   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1118   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1119   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1120   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1121   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1122   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1123   --make=MAKE              use specified make [$make]
1124   --python=PYTHON          use specified python [$python]
1125   --meson=MESON            use specified meson [$meson]
1126   --ninja=NINJA            use specified ninja [$ninja]
1127   --smbd=SMBD              use specified smbd [$smbd]
1128   --with-git=GIT           use specified git [$git]
1129   --with-git-submodules=update   update git submodules (default if .git dir exists)
1130   --with-git-submodules=validate fail if git submodules are not up to date
1131   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1132   --static                 enable static build [$static]
1133   --mandir=PATH            install man pages in PATH
1134   --datadir=PATH           install firmware in PATH/$qemu_suffix
1135   --localedir=PATH         install translation in PATH/$qemu_suffix
1136   --docdir=PATH            install documentation in PATH/$qemu_suffix
1137   --bindir=PATH            install binaries in PATH
1138   --libdir=PATH            install libraries in PATH
1139   --libexecdir=PATH        install helper binaries in PATH
1140   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1141   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1142   --firmwarepath=PATH      search PATH for firmware files
1143   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1144   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1145   --with-pkgversion=VERS   use specified string as sub-version of the package
1146   --without-default-features default all --enable-* options to "disabled"
1147   --without-default-devices  do not include any device that is not needed to
1148                            start the emulator (only use if you are including
1149                            desired devices in configs/devices/)
1150   --with-devices-ARCH=NAME override default configs/devices
1151   --enable-debug           enable common debug build options
1152   --enable-sanitizers      enable default sanitizers
1153   --enable-tsan            enable thread sanitizer
1154   --disable-werror         disable compilation abort on warning
1155   --disable-stack-protector disable compiler-provided stack protection
1156   --audio-drv-list=LIST    set audio drivers to try if -audiodev is not used
1157   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1158   --block-drv-rw-whitelist=L
1159                            set block driver read-write whitelist
1160                            (by default affects only QEMU, not tools like qemu-img)
1161   --block-drv-ro-whitelist=L
1162                            set block driver read-only whitelist
1163                            (by default affects only QEMU, not tools like qemu-img)
1164   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1165                            Default:trace-<pid>
1166   --cpu=CPU                Build for host CPU [$cpu]
1167   --with-coroutine=BACKEND coroutine backend. Supported options:
1168                            ucontext, sigaltstack, windows
1169   --enable-gcov            enable test coverage analysis with gcov
1170   --enable-plugins
1171                            enable plugins via shared library loading
1172   --disable-containers     don't use containers for cross-building
1173   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1174 EOF
1175   meson_options_help
1176 cat << EOF
1177   system          all system emulation targets
1178   user            supported user emulation targets
1179   linux-user      all linux usermode emulation targets
1180   bsd-user        all BSD usermode emulation targets
1181   pie             Position Independent Executables
1182   modules         modules support (non-Windows)
1183   debug-tcg       TCG debugging (default is disabled)
1184   debug-info      debugging information
1185   lto             Enable Link-Time Optimization.
1186   safe-stack      SafeStack Stack Smash Protection. Depends on
1187                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1188   vhost-net       vhost-net kernel acceleration support
1189   vhost-vsock     virtio sockets device support
1190   vhost-scsi      vhost-scsi kernel target support
1191   vhost-crypto    vhost-user-crypto backend support
1192   vhost-kernel    vhost kernel backend support
1193   vhost-user      vhost-user backend support
1194   vhost-vdpa      vhost-vdpa kernel backend support
1195
1196 NOTE: The object files are built at the place where configure is launched
1197 EOF
1198 exit 0
1199 fi
1200
1201 # Remove old dependency files to make sure that they get properly regenerated
1202 rm -f */config-devices.mak.d
1203
1204 if test -z "$python"
1205 then
1206     error_exit "Python not found. Use --python=/path/to/python"
1207 fi
1208 if ! has "$make"
1209 then
1210     error_exit "GNU make ($make) not found"
1211 fi
1212
1213 # Note that if the Python conditional here evaluates True we will exit
1214 # with status 1 which is a shell 'false' value.
1215 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1216   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1217       "Use --python=/path/to/python to specify a supported Python."
1218 fi
1219
1220 # Preserve python version since some functionality is dependent on it
1221 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)
1222
1223 # Suppress writing compiled files
1224 python="$python -B"
1225
1226 if test -z "$meson"; then
1227     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1228         meson=meson
1229     elif test $git_submodules_action != 'ignore' ; then
1230         meson=git
1231     elif test -e "${source_path}/meson/meson.py" ; then
1232         meson=internal
1233     else
1234         if test "$explicit_python" = yes; then
1235             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1236         else
1237             error_exit "Meson not found.  Use --meson=/path/to/meson"
1238         fi
1239     fi
1240 else
1241     # Meson uses its own Python interpreter to invoke other Python scripts,
1242     # but the user wants to use the one they specified with --python.
1243     #
1244     # We do not want to override the distro Python interpreter (and sometimes
1245     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1246     # just require --meson=git|internal together with --python.
1247     if test "$explicit_python" = yes; then
1248         case "$meson" in
1249             git | internal) ;;
1250             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1251         esac
1252     fi
1253 fi
1254
1255 if test "$meson" = git; then
1256     git_submodules="${git_submodules} meson"
1257 fi
1258
1259 case "$meson" in
1260     git | internal)
1261         meson="$python ${source_path}/meson/meson.py"
1262         ;;
1263     *) meson=$(command -v "$meson") ;;
1264 esac
1265
1266 # Probe for ninja
1267
1268 if test -z "$ninja"; then
1269     for c in ninja ninja-build samu; do
1270         if has $c; then
1271             ninja=$(command -v "$c")
1272             break
1273         fi
1274     done
1275     if test -z "$ninja"; then
1276       error_exit "Cannot find Ninja"
1277     fi
1278 fi
1279
1280 # Check that the C compiler works. Doing this here before testing
1281 # the host CPU ensures that we had a valid CC to autodetect the
1282 # $cpu var (and we should bail right here if that's not the case).
1283 # It also allows the help message to be printed without a CC.
1284 write_c_skeleton;
1285 if compile_object ; then
1286   : C compiler works ok
1287 else
1288     error_exit "\"$cc\" either does not exist or does not work"
1289 fi
1290 if ! compile_prog ; then
1291     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1292 fi
1293
1294 # Consult white-list to determine whether to enable werror
1295 # by default.  Only enable by default for git builds
1296 if test -z "$werror" ; then
1297     if test "$git_submodules_action" != "ignore" && \
1298         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1299         werror="yes"
1300     else
1301         werror="no"
1302     fi
1303 fi
1304
1305 if test "$targetos" = "bogus"; then
1306     # Now that we know that we're not printing the help and that
1307     # the compiler works (so the results of the check_defines we used
1308     # to identify the OS are reliable), if we didn't recognize the
1309     # host OS we should stop now.
1310     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1311 fi
1312
1313 # Check whether the compiler matches our minimum requirements:
1314 cat > $TMPC << EOF
1315 #if defined(__clang_major__) && defined(__clang_minor__)
1316 # ifdef __apple_build_version__
1317 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1318 #   error You need at least XCode Clang v10.0 to compile QEMU
1319 #  endif
1320 # else
1321 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1322 #   error You need at least Clang v6.0 to compile QEMU
1323 #  endif
1324 # endif
1325 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1326 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1327 #  error You need at least GCC v7.4.0 to compile QEMU
1328 # endif
1329 #else
1330 # error You either need GCC or Clang to compiler QEMU
1331 #endif
1332 int main (void) { return 0; }
1333 EOF
1334 if ! compile_prog "" "" ; then
1335     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1336 fi
1337
1338 # Accumulate -Wfoo and -Wno-bar separately.
1339 # We will list all of the enable flags first, and the disable flags second.
1340 # Note that we do not add -Werror, because that would enable it for all
1341 # configure tests. If a configure test failed due to -Werror this would
1342 # just silently disable some features, so it's too error prone.
1343
1344 warn_flags=
1345 add_to warn_flags -Wold-style-declaration
1346 add_to warn_flags -Wold-style-definition
1347 add_to warn_flags -Wtype-limits
1348 add_to warn_flags -Wformat-security
1349 add_to warn_flags -Wformat-y2k
1350 add_to warn_flags -Winit-self
1351 add_to warn_flags -Wignored-qualifiers
1352 add_to warn_flags -Wempty-body
1353 add_to warn_flags -Wnested-externs
1354 add_to warn_flags -Wendif-labels
1355 add_to warn_flags -Wexpansion-to-defined
1356 add_to warn_flags -Wimplicit-fallthrough=2
1357
1358 nowarn_flags=
1359 add_to nowarn_flags -Wno-initializer-overrides
1360 add_to nowarn_flags -Wno-missing-include-dirs
1361 add_to nowarn_flags -Wno-shift-negative-value
1362 add_to nowarn_flags -Wno-string-plus-int
1363 add_to nowarn_flags -Wno-typedef-redefinition
1364 add_to nowarn_flags -Wno-tautological-type-limit-compare
1365 add_to nowarn_flags -Wno-psabi
1366
1367 gcc_flags="$warn_flags $nowarn_flags"
1368
1369 cc_has_warning_flag() {
1370     write_c_skeleton;
1371
1372     # Use the positive sense of the flag when testing for -Wno-wombat
1373     # support (gcc will happily accept the -Wno- form of unknown
1374     # warning options).
1375     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1376     compile_prog "-Werror $optflag" ""
1377 }
1378
1379 objcc_has_warning_flag() {
1380     cat > $TMPM <<EOF
1381 int main(void) { return 0; }
1382 EOF
1383
1384     # Use the positive sense of the flag when testing for -Wno-wombat
1385     # support (gcc will happily accept the -Wno- form of unknown
1386     # warning options).
1387     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1388     do_objc -Werror $optflag \
1389       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1390       -o $TMPE $TMPM $QEMU_LDFLAGS
1391 }
1392
1393 for flag in $gcc_flags; do
1394     if cc_has_warning_flag $flag ; then
1395         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1396     fi
1397     if objcc_has_warning_flag $flag ; then
1398         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1399     fi
1400 done
1401
1402 if test "$stack_protector" != "no"; then
1403   cat > $TMPC << EOF
1404 int main(int argc, char *argv[])
1405 {
1406     char arr[64], *p = arr, *c = argv[0];
1407     while (*c) {
1408         *p++ = *c++;
1409     }
1410     return 0;
1411 }
1412 EOF
1413   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1414   sp_on=0
1415   for flag in $gcc_flags; do
1416     # We need to check both a compile and a link, since some compiler
1417     # setups fail only on a .c->.o compile and some only at link time
1418     if compile_object "-Werror $flag" &&
1419        compile_prog "-Werror $flag" ""; then
1420       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1421       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1422       sp_on=1
1423       break
1424     fi
1425   done
1426   if test "$stack_protector" = yes; then
1427     if test $sp_on = 0; then
1428       error_exit "Stack protector not supported"
1429     fi
1430   fi
1431 fi
1432
1433 # Disable -Wmissing-braces on older compilers that warn even for
1434 # the "universal" C zero initializer {0}.
1435 cat > $TMPC << EOF
1436 struct {
1437   int a[2];
1438 } x = {0};
1439 EOF
1440 if compile_object "-Werror" "" ; then
1441   :
1442 else
1443   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1444 fi
1445
1446 # Our module code doesn't support Windows
1447 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1448   error_exit "Modules are not available for Windows"
1449 fi
1450
1451 # Static linking is not possible with plugins, modules or PIE
1452 if test "$static" = "yes" ; then
1453   if test "$modules" = "yes" ; then
1454     error_exit "static and modules are mutually incompatible"
1455   fi
1456   if test "$plugins" = "yes"; then
1457     error_exit "static and plugins are mutually incompatible"
1458   else
1459     plugins="no"
1460   fi
1461 fi
1462 test "$plugins" = "" && plugins=yes
1463
1464 cat > $TMPC << EOF
1465
1466 #ifdef __linux__
1467 #  define THREAD __thread
1468 #else
1469 #  define THREAD
1470 #endif
1471 static THREAD int tls_var;
1472 int main(void) { return tls_var; }
1473 EOF
1474
1475 # Check we support -fno-pie and -no-pie first; we will need the former for
1476 # building ROMs, and both for everything if --disable-pie is passed.
1477 if compile_prog "-Werror -fno-pie" "-no-pie"; then
1478   CFLAGS_NOPIE="-fno-pie"
1479   LDFLAGS_NOPIE="-no-pie"
1480 fi
1481
1482 if test "$static" = "yes"; then
1483   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1484     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1485     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1486     pie="yes"
1487   elif test "$pie" = "yes"; then
1488     error_exit "-static-pie not available due to missing toolchain support"
1489   else
1490     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1491     pie="no"
1492   fi
1493 elif test "$pie" = "no"; then
1494   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
1495   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
1496 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1497   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1498   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1499   pie="yes"
1500 elif test "$pie" = "yes"; then
1501   error_exit "PIE not available due to missing toolchain support"
1502 else
1503   echo "Disabling PIE due to missing toolchain support"
1504   pie="no"
1505 fi
1506
1507 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1508 # The combination is known as "full relro", because .got.plt is read-only too.
1509 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1510   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1511 fi
1512
1513 ##########################################
1514 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1515 # use i686 as default anyway, but for those that don't, an explicit
1516 # specification is necessary
1517
1518 if test "$cpu" = "i386"; then
1519   cat > $TMPC << EOF
1520 static int sfaa(int *ptr)
1521 {
1522   return __sync_fetch_and_and(ptr, 0);
1523 }
1524
1525 int main(void)
1526 {
1527   int val = 42;
1528   val = __sync_val_compare_and_swap(&val, 0, 1);
1529   sfaa(&val);
1530   return val;
1531 }
1532 EOF
1533   if ! compile_prog "" "" ; then
1534     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1535   fi
1536 fi
1537
1538 if test "$tcg" = "enabled"; then
1539     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1540     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1541 fi
1542
1543 if test -z "${target_list+xxx}" ; then
1544     default_targets=yes
1545     for target in $default_target_list; do
1546         target_list="$target_list $target"
1547     done
1548     target_list="${target_list# }"
1549 else
1550     default_targets=no
1551     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1552     for target in $target_list; do
1553         # Check that we recognised the target name; this allows a more
1554         # friendly error message than if we let it fall through.
1555         case " $default_target_list " in
1556             *" $target "*)
1557                 ;;
1558             *)
1559                 error_exit "Unknown target name '$target'"
1560                 ;;
1561         esac
1562     done
1563 fi
1564
1565 # see if system emulation was really requested
1566 case " $target_list " in
1567   *"-softmmu "*) softmmu=yes
1568   ;;
1569   *) softmmu=no
1570   ;;
1571 esac
1572
1573 feature_not_found() {
1574   feature=$1
1575   remedy=$2
1576
1577   error_exit "User requested feature $feature" \
1578       "configure was not able to find it." \
1579       "$remedy"
1580 }
1581
1582 # ---
1583 # big/little endian test
1584 cat > $TMPC << EOF
1585 #include <stdio.h>
1586 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1587 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1588 int main(int argc, char *argv[])
1589 {
1590     return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1591 }
1592 EOF
1593
1594 if compile_prog ; then
1595     if strings -a $TMPE | grep -q BiGeNdIaN ; then
1596         bigendian="yes"
1597     elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1598         bigendian="no"
1599     else
1600         echo big/little test failed
1601         exit 1
1602     fi
1603 else
1604     echo big/little test failed
1605     exit 1
1606 fi
1607
1608 #########################################
1609 # vhost interdependencies and host support
1610
1611 # vhost backends
1612 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
1613   error_exit "vhost-user is not available on Windows"
1614 fi
1615 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
1616 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
1617   error_exit "vhost-vdpa is only available on Linux"
1618 fi
1619 test "$vhost_kernel" = "" && vhost_kernel=$linux
1620 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
1621   error_exit "vhost-kernel is only available on Linux"
1622 fi
1623
1624 # vhost-kernel devices
1625 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
1626 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
1627   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
1628 fi
1629 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
1630 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
1631   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
1632 fi
1633
1634 # vhost-user backends
1635 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
1636 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
1637   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
1638 fi
1639 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
1640 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
1641   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
1642 fi
1643 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
1644 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
1645   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
1646 fi
1647 #vhost-vdpa backends
1648 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
1649 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
1650   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
1651 fi
1652
1653 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
1654 if test "$vhost_net" = ""; then
1655   test "$vhost_net_user" = "yes" && vhost_net=yes
1656   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
1657   test "$vhost_kernel" = "yes" && vhost_net=yes
1658 fi
1659
1660 ##########################################
1661 # pkg-config probe
1662
1663 if ! has "$pkg_config_exe"; then
1664   error_exit "pkg-config binary '$pkg_config_exe' not found"
1665 fi
1666
1667 ##########################################
1668 # glib support probe
1669
1670 glib_req_ver=2.56
1671 glib_modules=gthread-2.0
1672 if test "$modules" = yes; then
1673     glib_modules="$glib_modules gmodule-export-2.0"
1674 elif test "$plugins" = "yes"; then
1675     glib_modules="$glib_modules gmodule-no-export-2.0"
1676 fi
1677
1678 for i in $glib_modules; do
1679     if $pkg_config --atleast-version=$glib_req_ver $i; then
1680         glib_cflags=$($pkg_config --cflags $i)
1681         glib_libs=$($pkg_config --libs $i)
1682     else
1683         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1684     fi
1685 done
1686
1687 # This workaround is required due to a bug in pkg-config file for glib as it
1688 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1689
1690 if test "$static" = yes && test "$mingw32" = yes; then
1691     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1692 fi
1693
1694 # Sanity check that the current size_t matches the
1695 # size that glib thinks it should be. This catches
1696 # problems on multi-arch where people try to build
1697 # 32-bit QEMU while pointing at 64-bit glib headers
1698 cat > $TMPC <<EOF
1699 #include <glib.h>
1700 #include <unistd.h>
1701
1702 #define QEMU_BUILD_BUG_ON(x) \
1703   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1704
1705 int main(void) {
1706    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1707    return 0;
1708 }
1709 EOF
1710
1711 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1712     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1713                "You probably need to set PKG_CONFIG_LIBDIR"\
1714                "to point to the right pkg-config files for your"\
1715                "build target"
1716 fi
1717
1718 # Silence clang warnings triggered by glib < 2.57.2
1719 cat > $TMPC << EOF
1720 #include <glib.h>
1721 typedef struct Foo {
1722     int i;
1723 } Foo;
1724 static void foo_free(Foo *f)
1725 {
1726     g_free(f);
1727 }
1728 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1729 int main(void) { return 0; }
1730 EOF
1731 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1732     if cc_has_warning_flag "-Wno-unused-function"; then
1733         glib_cflags="$glib_cflags -Wno-unused-function"
1734         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1735     fi
1736 fi
1737
1738 ##########################################
1739 # SHA command probe for modules
1740 if test "$modules" = yes; then
1741     shacmd_probe="sha1sum sha1 shasum"
1742     for c in $shacmd_probe; do
1743         if has $c; then
1744             shacmd="$c"
1745             break
1746         fi
1747     done
1748     if test "$shacmd" = ""; then
1749         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
1750     fi
1751 fi
1752
1753 ##########################################
1754 # fdt probe
1755
1756 case "$fdt" in
1757   auto | enabled | internal)
1758     # Simpler to always update submodule, even if not needed.
1759     git_submodules="${git_submodules} dtc"
1760     ;;
1761 esac
1762
1763 ##########################################
1764 # capstone
1765
1766 case "$capstone" in
1767   auto | enabled | internal)
1768     # Simpler to always update submodule, even if not needed.
1769     git_submodules="${git_submodules} capstone"
1770     ;;
1771 esac
1772
1773 ##########################################
1774 # check and set a backend for coroutine
1775
1776 # We prefer ucontext, but it's not always possible. The fallback
1777 # is sigcontext. On Windows the only valid backend is the Windows
1778 # specific one.
1779
1780 ucontext_works=no
1781 if test "$darwin" != "yes"; then
1782   cat > $TMPC << EOF
1783 #include <ucontext.h>
1784 #ifdef __stub_makecontext
1785 #error Ignoring glibc stub makecontext which will always fail
1786 #endif
1787 int main(void) { makecontext(0, 0, 0); return 0; }
1788 EOF
1789   if compile_prog "" "" ; then
1790     ucontext_works=yes
1791   fi
1792 fi
1793
1794 if test "$coroutine" = ""; then
1795   if test "$mingw32" = "yes"; then
1796     coroutine=win32
1797   elif test "$ucontext_works" = "yes"; then
1798     coroutine=ucontext
1799   else
1800     coroutine=sigaltstack
1801   fi
1802 else
1803   case $coroutine in
1804   windows)
1805     if test "$mingw32" != "yes"; then
1806       error_exit "'windows' coroutine backend only valid for Windows"
1807     fi
1808     # Unfortunately the user visible backend name doesn't match the
1809     # coroutine-*.c filename for this case, so we have to adjust it here.
1810     coroutine=win32
1811     ;;
1812   ucontext)
1813     if test "$ucontext_works" != "yes"; then
1814       feature_not_found "ucontext"
1815     fi
1816     ;;
1817   sigaltstack)
1818     if test "$mingw32" = "yes"; then
1819       error_exit "only the 'windows' coroutine backend is valid for Windows"
1820     fi
1821     ;;
1822   *)
1823     error_exit "unknown coroutine backend $coroutine"
1824     ;;
1825   esac
1826 fi
1827
1828 ##################################################
1829 # SafeStack
1830
1831
1832 if test "$safe_stack" = "yes"; then
1833 cat > $TMPC << EOF
1834 int main(int argc, char *argv[])
1835 {
1836 #if ! __has_feature(safe_stack)
1837 #error SafeStack Disabled
1838 #endif
1839     return 0;
1840 }
1841 EOF
1842   flag="-fsanitize=safe-stack"
1843   # Check that safe-stack is supported and enabled.
1844   if compile_prog "-Werror $flag" "$flag"; then
1845     # Flag needed both at compilation and at linking
1846     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1847     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1848   else
1849     error_exit "SafeStack not supported by your compiler"
1850   fi
1851   if test "$coroutine" != "ucontext"; then
1852     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1853   fi
1854 else
1855 cat > $TMPC << EOF
1856 int main(int argc, char *argv[])
1857 {
1858 #if defined(__has_feature)
1859 #if __has_feature(safe_stack)
1860 #error SafeStack Enabled
1861 #endif
1862 #endif
1863     return 0;
1864 }
1865 EOF
1866 if test "$safe_stack" = "no"; then
1867   # Make sure that safe-stack is disabled
1868   if ! compile_prog "-Werror" ""; then
1869     # SafeStack was already enabled, try to explicitly remove the feature
1870     flag="-fno-sanitize=safe-stack"
1871     if ! compile_prog "-Werror $flag" "$flag"; then
1872       error_exit "Configure cannot disable SafeStack"
1873     fi
1874     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1875     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1876   fi
1877 else # "$safe_stack" = ""
1878   # Set safe_stack to yes or no based on pre-existing flags
1879   if compile_prog "-Werror" ""; then
1880     safe_stack="no"
1881   else
1882     safe_stack="yes"
1883     if test "$coroutine" != "ucontext"; then
1884       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1885     fi
1886   fi
1887 fi
1888 fi
1889
1890 ########################################
1891 # check if ccache is interfering with
1892 # semantic analysis of macros
1893
1894 unset CCACHE_CPP2
1895 ccache_cpp2=no
1896 cat > $TMPC << EOF
1897 static const int Z = 1;
1898 #define fn() ({ Z; })
1899 #define TAUT(X) ((X) == Z)
1900 #define PAREN(X, Y) (X == Y)
1901 #define ID(X) (X)
1902 int main(int argc, char *argv[])
1903 {
1904     int x = 0, y = 0;
1905     x = ID(x);
1906     x = fn();
1907     fn();
1908     if (PAREN(x, y)) return 0;
1909     if (TAUT(Z)) return 0;
1910     return 0;
1911 }
1912 EOF
1913
1914 if ! compile_object "-Werror"; then
1915     ccache_cpp2=yes
1916 fi
1917
1918 #################################################
1919 # clang does not support glibc + FORTIFY_SOURCE.
1920
1921 if test "$fortify_source" != "no"; then
1922   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1923     fortify_source="no";
1924   elif test -n "$cxx" && has $cxx &&
1925        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1926     fortify_source="no";
1927   else
1928     fortify_source="yes"
1929   fi
1930 fi
1931
1932 ##########################################
1933 # checks for sanitizers
1934
1935 have_asan=no
1936 have_ubsan=no
1937 have_asan_iface_h=no
1938 have_asan_iface_fiber=no
1939
1940 if test "$sanitizers" = "yes" ; then
1941   write_c_skeleton
1942   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1943       have_asan=yes
1944   fi
1945
1946   # we could use a simple skeleton for flags checks, but this also
1947   # detect the static linking issue of ubsan, see also:
1948   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1949   cat > $TMPC << EOF
1950 #include <stdlib.h>
1951 int main(void) {
1952     void *tmp = malloc(10);
1953     if (tmp != NULL) {
1954         return *(int *)(tmp + 2);
1955     }
1956     return 1;
1957 }
1958 EOF
1959   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1960       have_ubsan=yes
1961   fi
1962
1963   if check_include "sanitizer/asan_interface.h" ; then
1964       have_asan_iface_h=yes
1965   fi
1966
1967   cat > $TMPC << EOF
1968 #include <sanitizer/asan_interface.h>
1969 int main(void) {
1970   __sanitizer_start_switch_fiber(0, 0, 0);
1971   return 0;
1972 }
1973 EOF
1974   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1975       have_asan_iface_fiber=yes
1976   fi
1977 fi
1978
1979 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1980 # keep it separate until that is not the case.
1981 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1982   error_exit "TSAN is not supported with other sanitiziers."
1983 fi
1984 have_tsan=no
1985 have_tsan_iface_fiber=no
1986 if test "$tsan" = "yes" ; then
1987   write_c_skeleton
1988   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1989       have_tsan=yes
1990   fi
1991   cat > $TMPC << EOF
1992 #include <sanitizer/tsan_interface.h>
1993 int main(void) {
1994   __tsan_create_fiber(0);
1995   return 0;
1996 }
1997 EOF
1998   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1999       have_tsan_iface_fiber=yes
2000   fi
2001 fi
2002
2003 ##########################################
2004 # check for slirp
2005
2006 case "$slirp" in
2007   auto | enabled | internal)
2008     # Simpler to always update submodule, even if not needed.
2009     git_submodules="${git_submodules} slirp"
2010     ;;
2011 esac
2012
2013 ##########################################
2014 # End of CC checks
2015 # After here, no more $cc or $ld runs
2016
2017 write_c_skeleton
2018
2019 if test "$fortify_source" = "yes" ; then
2020   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2021   debug=no
2022 fi
2023
2024 case "$ARCH" in
2025 alpha)
2026   # Ensure there's only a single GP
2027   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
2028 ;;
2029 esac
2030
2031 if test "$have_asan" = "yes"; then
2032   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2033   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2034   if test "$have_asan_iface_h" = "no" ; then
2035       echo "ASAN build enabled, but ASAN header missing." \
2036            "Without code annotation, the report may be inferior."
2037   elif test "$have_asan_iface_fiber" = "no" ; then
2038       echo "ASAN build enabled, but ASAN header is too old." \
2039            "Without code annotation, the report may be inferior."
2040   fi
2041 fi
2042 if test "$have_tsan" = "yes" ; then
2043   if test "$have_tsan_iface_fiber" = "yes" ; then
2044     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2045     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2046   else
2047     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2048   fi
2049 elif test "$tsan" = "yes" ; then
2050   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2051 fi
2052 if test "$have_ubsan" = "yes"; then
2053   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2054   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2055 fi
2056
2057 ##########################################
2058
2059 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
2060 if test "$solaris" = "no" && test "$tsan" = "no"; then
2061     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
2062         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
2063     fi
2064 fi
2065
2066 # Guest agent Windows MSI package
2067
2068 if test "$QEMU_GA_MANUFACTURER" = ""; then
2069   QEMU_GA_MANUFACTURER=QEMU
2070 fi
2071 if test "$QEMU_GA_DISTRO" = ""; then
2072   QEMU_GA_DISTRO=Linux
2073 fi
2074 if test "$QEMU_GA_VERSION" = ""; then
2075     QEMU_GA_VERSION=$(cat $source_path/VERSION)
2076 fi
2077
2078 QEMU_GA_MSI_MINGW_BIN_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
2079
2080 # Mac OS X ships with a broken assembler
2081 roms=
2082 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
2083         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2084         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
2085     # Different host OS linkers have different ideas about the name of the ELF
2086     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
2087     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
2088     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
2089         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
2090             ld_i386_emulation="$emu"
2091             roms="optionrom"
2092             break
2093         fi
2094     done
2095 fi
2096
2097 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
2098 # or -march=z10 (which is the lowest architecture level that Clang supports)
2099 if test "$cpu" = "s390x" ; then
2100   write_c_skeleton
2101   compile_prog "-march=z900" ""
2102   has_z900=$?
2103   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
2104     if [ $has_z900 != 0 ]; then
2105       echo "WARNING: Your compiler does not support the z900!"
2106       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2107     fi
2108     roms="$roms s390-ccw"
2109     # SLOF is required for building the s390-ccw firmware on s390x,
2110     # since it is using the libnet code from SLOF for network booting.
2111     git_submodules="${git_submodules} roms/SLOF"
2112   fi
2113 fi
2114
2115 # Check that the C++ compiler exists and works with the C compiler.
2116 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
2117 if has $cxx; then
2118     cat > $TMPC <<EOF
2119 int c_function(void);
2120 int main(void) { return c_function(); }
2121 EOF
2122
2123     compile_object
2124
2125     cat > $TMPCXX <<EOF
2126 extern "C" {
2127    int c_function(void);
2128 }
2129 int c_function(void) { return 42; }
2130 EOF
2131
2132     update_cxxflags
2133
2134     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
2135         # C++ compiler $cxx works ok with C compiler $cc
2136         :
2137     else
2138         echo "C++ compiler $cxx does not work with C compiler $cc"
2139         echo "Disabling C++ specific optional code"
2140         cxx=
2141     fi
2142 else
2143     echo "No C++ compiler available; disabling C++ specific optional code"
2144     cxx=
2145 fi
2146
2147 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2148     exit 1
2149 fi
2150
2151 config_host_mak="config-host.mak"
2152
2153 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2154 echo >> $config_host_mak
2155
2156 echo all: >> $config_host_mak
2157 echo "GIT=$git" >> $config_host_mak
2158 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2159 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2160
2161 if test "$debug_tcg" = "yes" ; then
2162   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2163 fi
2164 if test "$mingw32" = "yes" ; then
2165   echo "CONFIG_WIN32=y" >> $config_host_mak
2166   echo "QEMU_GA_MSI_MINGW_BIN_PATH=${QEMU_GA_MSI_MINGW_BIN_PATH}" >> $config_host_mak
2167   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
2168   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
2169   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
2170 else
2171   echo "CONFIG_POSIX=y" >> $config_host_mak
2172 fi
2173
2174 if test "$linux" = "yes" ; then
2175   echo "CONFIG_LINUX=y" >> $config_host_mak
2176 fi
2177
2178 if test "$darwin" = "yes" ; then
2179   echo "CONFIG_DARWIN=y" >> $config_host_mak
2180 fi
2181
2182 if test "$solaris" = "yes" ; then
2183   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2184 fi
2185 if test "$static" = "yes" ; then
2186   echo "CONFIG_STATIC=y" >> $config_host_mak
2187 fi
2188 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
2189 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
2190 qemu_version=$(head $source_path/VERSION)
2191 echo "PKGVERSION=$pkgversion" >>$config_host_mak
2192 echo "SRC_PATH=$source_path" >> $config_host_mak
2193 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2194 if test "$modules" = "yes"; then
2195   # $shacmd can generate a hash started with digit, which the compiler doesn't
2196   # like as an symbol. So prefix it with an underscore
2197   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
2198   echo "CONFIG_MODULES=y" >> $config_host_mak
2199 fi
2200
2201 if test "$vhost_scsi" = "yes" ; then
2202   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
2203 fi
2204 if test "$vhost_net" = "yes" ; then
2205   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
2206 fi
2207 if test "$vhost_net_user" = "yes" ; then
2208   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
2209 fi
2210 if test "$vhost_net_vdpa" = "yes" ; then
2211   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
2212 fi
2213 if test "$vhost_crypto" = "yes" ; then
2214   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
2215 fi
2216 if test "$vhost_vsock" = "yes" ; then
2217   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
2218   if test "$vhost_user" = "yes" ; then
2219     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
2220   fi
2221 fi
2222 if test "$vhost_kernel" = "yes" ; then
2223   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
2224 fi
2225 if test "$vhost_user" = "yes" ; then
2226   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
2227 fi
2228 if test "$vhost_vdpa" = "yes" ; then
2229   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
2230 fi
2231 if test "$vhost_user_fs" = "yes" ; then
2232   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
2233 fi
2234
2235 # XXX: suppress that
2236 if [ "$bsd" = "yes" ] ; then
2237   echo "CONFIG_BSD=y" >> $config_host_mak
2238 fi
2239
2240 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2241
2242 if test "$have_asan_iface_fiber" = "yes" ; then
2243     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2244 fi
2245
2246 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2247     echo "CONFIG_TSAN=y" >> $config_host_mak
2248 fi
2249
2250 if test "$plugins" = "yes" ; then
2251     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2252 fi
2253
2254 if test -n "$gdb_bin"; then
2255     gdb_version=$($gdb_bin --version | head -n 1)
2256     if version_ge ${gdb_version##* } 9.1; then
2257         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2258     fi
2259 fi
2260
2261 echo "ROMS=$roms" >> $config_host_mak
2262 echo "MAKE=$make" >> $config_host_mak
2263 echo "PYTHON=$python" >> $config_host_mak
2264 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2265 echo "MESON=$meson" >> $config_host_mak
2266 echo "NINJA=$ninja" >> $config_host_mak
2267 echo "CC=$cc" >> $config_host_mak
2268 echo "AR=$ar" >> $config_host_mak
2269 echo "AS=$as" >> $config_host_mak
2270 echo "CCAS=$ccas" >> $config_host_mak
2271 echo "CPP=$cpp" >> $config_host_mak
2272 echo "OBJCOPY=$objcopy" >> $config_host_mak
2273 echo "LD=$ld" >> $config_host_mak
2274 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
2275 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2276 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
2277 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2278 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2279 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2280 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2281 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2282 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
2283 echo "STRIP=$strip" >> $config_host_mak
2284 echo "EXESUF=$EXESUF" >> $config_host_mak
2285
2286 # use included Linux headers
2287 if test "$linux" = "yes" ; then
2288   mkdir -p linux-headers
2289   case "$cpu" in
2290   i386|x86_64)
2291     linux_arch=x86
2292     ;;
2293   ppc|ppc64)
2294     linux_arch=powerpc
2295     ;;
2296   s390x)
2297     linux_arch=s390
2298     ;;
2299   aarch64)
2300     linux_arch=arm64
2301     ;;
2302   loongarch*)
2303     linux_arch=loongarch
2304     ;;
2305   mips64)
2306     linux_arch=mips
2307     ;;
2308   *)
2309     # For most CPUs the kernel architecture name and QEMU CPU name match.
2310     linux_arch="$cpu"
2311     ;;
2312   esac
2313     # For non-KVM architectures we will not have asm headers
2314     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2315       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2316     fi
2317 fi
2318
2319 for target in $target_list; do
2320     target_dir="$target"
2321     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2322     mkdir -p $target_dir
2323     case $target in
2324         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2325         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2326     esac
2327 done
2328
2329 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
2330 if test "$default_targets" = "yes"; then
2331   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2332 fi
2333
2334 if test "$ccache_cpp2" = "yes"; then
2335   echo "export CCACHE_CPP2=y" >> $config_host_mak
2336 fi
2337
2338 if test "$safe_stack" = "yes"; then
2339   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2340 fi
2341
2342 # If we're using a separate build tree, set it up now.
2343 # LINKS are things to symlink back into the source tree
2344 # (these can be both files and directories).
2345 # Caution: do not add files or directories here using wildcards. This
2346 # will result in problems later if a new file matching the wildcard is
2347 # added to the source tree -- nothing will cause configure to be rerun
2348 # so the build tree will be missing the link back to the new file, and
2349 # tests might fail. Prefer to keep the relevant files in their own
2350 # directory and symlink the directory instead.
2351 LINKS="Makefile"
2352 LINKS="$LINKS tests/tcg/Makefile.target"
2353 LINKS="$LINKS pc-bios/optionrom/Makefile"
2354 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2355 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2356 LINKS="$LINKS tests/avocado tests/data"
2357 LINKS="$LINKS tests/qemu-iotests/check"
2358 LINKS="$LINKS python"
2359 LINKS="$LINKS contrib/plugins/Makefile "
2360 for bios_file in \
2361     $source_path/pc-bios/*.bin \
2362     $source_path/pc-bios/*.elf \
2363     $source_path/pc-bios/*.lid \
2364     $source_path/pc-bios/*.rom \
2365     $source_path/pc-bios/*.dtb \
2366     $source_path/pc-bios/*.img \
2367     $source_path/pc-bios/openbios-* \
2368     $source_path/pc-bios/u-boot.* \
2369     $source_path/pc-bios/palcode-* \
2370     $source_path/pc-bios/qemu_vga.ndrv
2371
2372 do
2373     LINKS="$LINKS pc-bios/$(basename $bios_file)"
2374 done
2375 for f in $LINKS ; do
2376     if [ -e "$source_path/$f" ]; then
2377         mkdir -p `dirname ./$f`
2378         symlink "$source_path/$f" "$f"
2379     fi
2380 done
2381
2382 (for i in $cross_cc_vars; do
2383   export $i
2384 done
2385 export target_list source_path use_containers cpu host_cc
2386 $source_path/tests/tcg/configure.sh)
2387
2388 config_mak=pc-bios/optionrom/config.mak
2389 echo "# Automatically generated by configure - do not modify" > $config_mak
2390 echo "TOPSRC_DIR=$source_path" >> $config_mak
2391
2392 if test "$skip_meson" = no; then
2393   cross="config-meson.cross.new"
2394   meson_quote() {
2395     test $# = 0 && return
2396     echo "'$(echo $* | sed "s/ /','/g")'"
2397   }
2398
2399   echo "# Automatically generated by configure - do not modify" > $cross
2400   echo "[properties]" >> $cross
2401
2402   # unroll any custom device configs
2403   for a in $device_archs; do
2404       eval "c=\$devices_${a}"
2405       echo "${a}-softmmu = '$c'" >> $cross
2406   done
2407
2408   test -z "$cxx" && echo "link_language = 'c'" >> $cross
2409   echo "[built-in options]" >> $cross
2410   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2411   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2412   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2413   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2414   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2415   echo "[binaries]" >> $cross
2416   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2417   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2418   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2419   echo "ar = [$(meson_quote $ar)]" >> $cross
2420   echo "nm = [$(meson_quote $nm)]" >> $cross
2421   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2422   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2423   if has $sdl2_config; then
2424     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2425   fi
2426   echo "strip = [$(meson_quote $strip)]" >> $cross
2427   echo "widl = [$(meson_quote $widl)]" >> $cross
2428   echo "windres = [$(meson_quote $windres)]" >> $cross
2429   if test "$cross_compile" = "yes"; then
2430     cross_arg="--cross-file config-meson.cross"
2431     echo "[host_machine]" >> $cross
2432     echo "system = '$targetos'" >> $cross
2433     case "$cpu" in
2434         i386)
2435             echo "cpu_family = 'x86'" >> $cross
2436             ;;
2437         *)
2438             echo "cpu_family = '$cpu'" >> $cross
2439             ;;
2440     esac
2441     echo "cpu = '$cpu'" >> $cross
2442     if test "$bigendian" = "yes" ; then
2443         echo "endian = 'big'" >> $cross
2444     else
2445         echo "endian = 'little'" >> $cross
2446     fi
2447   else
2448     cross_arg="--native-file config-meson.cross"
2449   fi
2450   mv $cross config-meson.cross
2451
2452   rm -rf meson-private meson-info meson-logs
2453   run_meson() {
2454     NINJA=$ninja $meson setup \
2455         --prefix "$prefix" \
2456         --libdir "$libdir" \
2457         --libexecdir "$libexecdir" \
2458         --bindir "$bindir" \
2459         --includedir "$includedir" \
2460         --datadir "$datadir" \
2461         --mandir "$mandir" \
2462         --sysconfdir "$sysconfdir" \
2463         --localedir "$localedir" \
2464         --localstatedir "$local_statedir" \
2465         -Ddefault_devices=$default_devices \
2466         -Ddocdir="$docdir" \
2467         -Dqemu_firmwarepath="$firmwarepath" \
2468         -Dqemu_suffix="$qemu_suffix" \
2469         -Dsmbd="$smbd" \
2470         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
2471         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
2472         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
2473         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
2474         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
2475         -Db_lto=$lto -Dcfi=$cfi -Dtcg=$tcg \
2476         -Dcapstone=$capstone -Dfdt=$fdt -Dslirp=$slirp \
2477         $(test -n "${LIB_FUZZING_ENGINE+xxx}" && echo "-Dfuzzing_engine=$LIB_FUZZING_ENGINE") \
2478         $(if test "$default_feature" = no; then echo "-Dauto_features=disabled"; fi) \
2479         "$@" $cross_arg "$PWD" "$source_path"
2480   }
2481   eval run_meson $meson_options
2482   if test "$?" -ne 0 ; then
2483       error_exit "meson setup failed"
2484   fi
2485 else
2486   if test -f meson-private/cmd_line.txt; then
2487     # Adjust old command line options whose type was changed
2488     # Avoids having to use "setup --wipe" when Meson is upgraded
2489     perl -i -ne '
2490       s/^gettext = true$/gettext = auto/;
2491       s/^gettext = false$/gettext = disabled/;
2492       /^b_staticpic/ && next;
2493       print;' meson-private/cmd_line.txt
2494   fi
2495 fi
2496
2497 # Save the configure command line for later reuse.
2498 cat <<EOD >config.status
2499 #!/bin/sh
2500 # Generated by configure.
2501 # Run this file to recreate the current configuration.
2502 # Compiler output produced by configure, useful for debugging
2503 # configure, is in config.log if it exists.
2504 EOD
2505
2506 preserve_env() {
2507     envname=$1
2508
2509     eval envval=\$$envname
2510
2511     if test -n "$envval"
2512     then
2513         echo "$envname='$envval'" >> config.status
2514         echo "export $envname" >> config.status
2515     else
2516         echo "unset $envname" >> config.status
2517     fi
2518 }
2519
2520 # Preserve various env variables that influence what
2521 # features/build target configure will detect
2522 preserve_env AR
2523 preserve_env AS
2524 preserve_env CC
2525 preserve_env CPP
2526 preserve_env CFLAGS
2527 preserve_env CXX
2528 preserve_env CXXFLAGS
2529 preserve_env INSTALL
2530 preserve_env LD
2531 preserve_env LDFLAGS
2532 preserve_env LD_LIBRARY_PATH
2533 preserve_env LIBTOOL
2534 preserve_env MAKE
2535 preserve_env NM
2536 preserve_env OBJCOPY
2537 preserve_env PATH
2538 preserve_env PKG_CONFIG
2539 preserve_env PKG_CONFIG_LIBDIR
2540 preserve_env PKG_CONFIG_PATH
2541 preserve_env PYTHON
2542 preserve_env SDL2_CONFIG
2543 preserve_env SMBD
2544 preserve_env STRIP
2545 preserve_env WIDL
2546 preserve_env WINDRES
2547
2548 printf "exec" >>config.status
2549 for i in "$0" "$@"; do
2550   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2551 done
2552 echo ' "$@"' >>config.status
2553 chmod +x config.status
2554
2555 rm -r "$TMPDIR1"