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     if ! mkdir build || ! touch $MARKER
  35     then
  36         echo "ERROR: Could not create ./build directory. Check the permissions on"
  37         echo "your source directory, or try doing an out-of-tree build."
  38         exit 1
  39     fi
  40
  41     cat > GNUmakefile <<'EOF'
  42 # This file is auto-generated by configure to support in-source tree
  43 # 'make' command invocation
  44
  45 ifeq ($(MAKECMDGOALS),)
  46 recurse: all
  47 endif
  48
  49 .NOTPARALLEL: %
  50 %: force
  51         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  52         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  53         @if test "$(MAKECMDGOALS)" = "distclean" && \
  54             test -e build/auto-created-by-configure ; \
  55         then \
  56             rm -rf build GNUmakefile ; \
  57         fi
  58 force: ;
  59 .PHONY: force
  60 GNUmakefile: ;
  61
  62 EOF
  63     cd build
  64     exec "$source_path/configure" "$@"
  65 fi
  66
  67 # Temporary directory used for files created while
  68 # configure runs. Since it is in the build directory
  69 # we can safely blow away any previous version of it
  70 # (and we need not jump through hoops to try to delete
  71 # it when configure exits.)
  72 TMPDIR1="config-temp"
  73 rm -rf "${TMPDIR1}"
  74 if ! mkdir -p "${TMPDIR1}"; then
  75     echo "ERROR: failed to create temporary directory"
  76     exit 1
  77 fi
  78
  79 TMPB="qemu-conf"
  80 TMPC="${TMPDIR1}/${TMPB}.c"
  81 TMPO="${TMPDIR1}/${TMPB}.o"
  82 TMPM="${TMPDIR1}/${TMPB}.m"
  83 TMPE="${TMPDIR1}/${TMPB}.exe"
  84
  85 rm -f config.log
  86
  87 # Print a helpful header at the top of config.log
  88 echo "# QEMU configure log $(date)" >> config.log
  89 printf "# Configured with:" >> config.log
  90 # repeat the invocation to log and stdout for CI
  91 invoke=$(printf " '%s'" "$0" "$@")
  92 test -n "$GITLAB_CI" && echo "configuring with: $invoke"
  93 { echo "$invoke"; echo; echo "#"; } >> config.log
  94
  95 quote_sh() {
  96     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  97 }
  98
  99 print_error() {
 100     (echo
 101     echo "ERROR: $1"
 102     while test -n "$2"; do
 103         echo "       $2"
 104         shift
 105     done
 106     echo) >&2
 107 }
 108
 109 error_exit() {
 110     print_error "$@"
 111     exit 1
 112 }
 113
 114 do_compiler() {
 115   # Run the compiler, capturing its output to the log. First argument
 116   # is compiler binary to execute.
 117   compiler="$1"
 118   shift
 119   if test -n "$BASH_VERSION"; then eval '
 120       echo >>config.log "
 121 funcs: ${FUNCNAME[*]}
 122 lines: ${BASH_LINENO[*]}"
 123   '; fi
 124   echo $compiler "$@" >> config.log
 125   $compiler "$@" >> config.log 2>&1 || return $?
 126 }
 127
 128 do_compiler_werror() {
 129     # Run the compiler, capturing its output to the log. First argument
 130     # is compiler binary to execute.
 131     compiler="$1"
 132     shift
 133     if test -n "$BASH_VERSION"; then eval '
 134         echo >>config.log "
 135 funcs: ${FUNCNAME[*]}
 136 lines: ${BASH_LINENO[*]}"
 137     '; fi
 138     echo $compiler "$@" >> config.log
 139     $compiler "$@" >> config.log 2>&1 || return $?
 140     # Test passed. If this is an --enable-werror build, rerun
 141     # the test with -Werror and bail out if it fails. This
 142     # makes warning-generating-errors in configure test code
 143     # obvious to developers.
 144     if test "$werror" != "yes"; then
 145         return 0
 146     fi
 147     # Don't bother rerunning the compile if we were already using -Werror
 148     case "$*" in
 149         *-Werror*)
 150            return 0
 151         ;;
 152     esac
 153     echo $compiler -Werror "$@" >> config.log
 154     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 155     error_exit "configure test passed without -Werror but failed with -Werror." \
 156         "This is probably a bug in the configure script. The failing command" \
 157         "will be at the bottom of config.log." \
 158         "You can run configure with --disable-werror to bypass this check."
 159 }
 160
 161 do_cc() {
 162     do_compiler_werror "$cc" $CPU_CFLAGS "$@"
 163 }
 164
 165 do_objc() {
 166     do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
 167 }
 168
 169 # Append $2 to the variable named $1, with space separation
 170 add_to() {
 171     eval $1=\${$1:+\"\$$1 \"}\$2
 172 }
 173
 174 compile_object() {
 175   local_cflags="$1"
 176   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 177 }
 178
 179 compile_prog() {
 180   local_cflags="$1"
 181   local_ldflags="$2"
 182   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 183       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 184 }
 185
 186 # symbolically link $1 to $2.  Portable version of "ln -sf".
 187 symlink() {
 188   rm -rf "$2"
 189   mkdir -p "$(dirname "$2")"
 190   ln -s "$1" "$2"
 191 }
 192
 193 # check whether a command is available to this shell (may be either an
 194 # executable or a builtin)
 195 has() {
 196     type "$1" >/dev/null 2>&1
 197 }
 198
 199 version_ge () {
 200     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 201     local_ver2=$(echo "$2" | tr . ' ')
 202     while true; do
 203         set x $local_ver1
 204         local_first=${2-0}
 205         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 206         shift ${2:+2}
 207         local_ver1=$*
 208         set x $local_ver2
 209         # the second argument finished, the first must be greater or equal
 210         test $# = 1 && return 0
 211         test $local_first -lt $2 && return 1
 212         test $local_first -gt $2 && return 0
 213         shift ${2:+2}
 214         local_ver2=$*
 215     done
 216 }
 217
 218 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 219 then
 220   error_exit "main directory cannot contain spaces nor colons"
 221 fi
 222
 223 # default parameters
 224 cpu=""
 225 static="no"
 226 cross_compile="no"
 227 cross_prefix=""
 228 host_cc="cc"
 229 stack_protector=""
 230 safe_stack=""
 231 use_containers="yes"
 232 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 233
 234 if test -e "$source_path/.git"
 235 then
 236     git_submodules_action="update"
 237 else
 238     git_submodules_action="ignore"
 239 fi
 240
 241 git_submodules="ui/keycodemapdb"
 242 git="git"
 243
 244 # Don't accept a target_list environment variable.
 245 unset target_list
 246 unset target_list_exclude
 247
 248 # Default value for a variable defining feature "foo".
 249 #  * foo="no"  feature will only be used if --enable-foo arg is given
 250 #  * foo=""    feature will be searched for, and if found, will be used
 251 #              unless --disable-foo is given
 252 #  * foo="yes" this value will only be set by --enable-foo flag.
 253 #              feature will searched for,
 254 #              if not found, configure exits with error
 255 #
 256 # Always add --enable-foo and --disable-foo command line args.
 257 # Distributions want to ensure that several features are compiled in, and it
 258 # is impossible without a --enable-foo that exits if a feature is not found.
 259
 260 default_feature=""
 261 # parse CC options second
 262 for opt do
 263   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 264   case "$opt" in
 265       --without-default-features)
 266           default_feature="no"
 267   ;;
 268   esac
 269 done
 270
 271 EXTRA_CFLAGS=""
 272 EXTRA_CXXFLAGS=""
 273 EXTRA_OBJCFLAGS=""
 274 EXTRA_LDFLAGS=""
 275
 276 debug_tcg="no"
 277 sanitizers="no"
 278 tsan="no"
 279 fortify_source="yes"
 280 EXESUF=""
 281 modules="no"
 282 prefix="/usr/local"
 283 qemu_suffix="qemu"
 284 softmmu="yes"
 285 linux_user=""
 286 bsd_user=""
 287 pie=""
 288 coroutine=""
 289 plugins="$default_feature"
 290 meson=""
 291 ninja=""
 292 bindir="bin"
 293 skip_meson=no
 294 vfio_user_server="disabled"
 295
 296 # The following Meson options are handled manually (still they
 297 # are included in the automatically generated help message)
 298
 299 # 1. Track which submodules are needed
 300 fdt="auto"
 301
 302 # 2. Automatically enable/disable other options
 303 tcg="auto"
 304 cfi="false"
 305
 306 # parse CC options second
 307 for opt do
 308   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 309   case "$opt" in
 310   --cross-prefix=*) cross_prefix="$optarg"
 311                     cross_compile="yes"
 312   ;;
 313   --cc=*) CC="$optarg"
 314   ;;
 315   --cxx=*) CXX="$optarg"
 316   ;;
 317   --cpu=*) cpu="$optarg"
 318   ;;
 319   --extra-cflags=*)
 320     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 321     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 322     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 323     ;;
 324   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 325   ;;
 326   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 327   ;;
 328   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 329   ;;
 330   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 331   ;;
 332   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 333                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 334   ;;
 335   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 336                 eval "cross_cc_${cc_arch}=\$optarg"
 337   ;;
 338   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 339   ;;
 340   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 341                     eval "cross_prefix_${cc_arch}=\$optarg"
 342   ;;
 343   esac
 344 done
 345
 346 # Preferred compiler:
 347 #  ${CC} (if set)
 348 #  ${cross_prefix}gcc (if cross-prefix specified)
 349 #  system compiler
 350 if test -z "${CC}${cross_prefix}"; then
 351   cc="$host_cc"
 352 else
 353   cc="${CC-${cross_prefix}gcc}"
 354 fi
 355
 356 if test -z "${CXX}${cross_prefix}"; then
 357   cxx="c++"
 358 else
 359   cxx="${CXX-${cross_prefix}g++}"
 360 fi
 361
 362 ar="${AR-${cross_prefix}ar}"
 363 as="${AS-${cross_prefix}as}"
 364 ccas="${CCAS-$cc}"
 365 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 366 ld="${LD-${cross_prefix}ld}"
 367 ranlib="${RANLIB-${cross_prefix}ranlib}"
 368 nm="${NM-${cross_prefix}nm}"
 369 smbd="$SMBD"
 370 strip="${STRIP-${cross_prefix}strip}"
 371 widl="${WIDL-${cross_prefix}widl}"
 372 windres="${WINDRES-${cross_prefix}windres}"
 373 windmc="${WINDMC-${cross_prefix}windmc}"
 374 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 375 query_pkg_config() {
 376     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 377 }
 378 pkg_config=query_pkg_config
 379 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 380
 381 # default flags for all hosts
 382 # We use -fwrapv to tell the compiler that we require a C dialect where
 383 # left shift of signed integers is well defined and has the expected
 384 # 2s-complement style results. (Both clang and gcc agree that it
 385 # provides these semantics.)
 386 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 387 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 388
 389 QEMU_LDFLAGS=
 390
 391 # Flags that are needed during configure but later taken care of by Meson
 392 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 393 CONFIGURE_LDFLAGS=
 394
 395
 396 check_define() {
 397 cat > $TMPC <<EOF
 398 #if !defined($1)
 399 #error $1 not defined
 400 #endif
 401 int main(void) { return 0; }
 402 EOF
 403   compile_object
 404 }
 405
 406 check_include() {
 407 cat > $TMPC <<EOF
 408 #include <$1>
 409 int main(void) { return 0; }
 410 EOF
 411   compile_object
 412 }
 413
 414 write_c_skeleton() {
 415     cat > $TMPC <<EOF
 416 int main(void) { return 0; }
 417 EOF
 418 }
 419
 420 if check_define __linux__ ; then
 421   targetos=linux
 422 elif check_define _WIN32 ; then
 423   targetos=windows
 424 elif check_define __OpenBSD__ ; then
 425   targetos=openbsd
 426 elif check_define __sun__ ; then
 427   targetos=sunos
 428 elif check_define __HAIKU__ ; then
 429   targetos=haiku
 430 elif check_define __FreeBSD__ ; then
 431   targetos=freebsd
 432 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 433   targetos=gnu/kfreebsd
 434 elif check_define __DragonFly__ ; then
 435   targetos=dragonfly
 436 elif check_define __NetBSD__; then
 437   targetos=netbsd
 438 elif check_define __APPLE__; then
 439   targetos=darwin
 440 else
 441   # This is a fatal error, but don't report it yet, because we
 442   # might be going to just print the --help text, or it might
 443   # be the result of a missing compiler.
 444   targetos=bogus
 445 fi
 446
 447 # OS specific
 448
 449 mingw32="no"
 450 bsd="no"
 451 linux="no"
 452 solaris="no"
 453 case $targetos in
 454 windows)
 455   mingw32="yes"
 456   plugins="no"
 457   pie="no"
 458 ;;
 459 gnu/kfreebsd)
 460   bsd="yes"
 461 ;;
 462 freebsd)
 463   bsd="yes"
 464   make="${MAKE-gmake}"
 465   # needed for kinfo_getvmmap(3) in libutil.h
 466 ;;
 467 dragonfly)
 468   bsd="yes"
 469   make="${MAKE-gmake}"
 470 ;;
 471 netbsd)
 472   bsd="yes"
 473   make="${MAKE-gmake}"
 474 ;;
 475 openbsd)
 476   bsd="yes"
 477   make="${MAKE-gmake}"
 478 ;;
 479 darwin)
 480   bsd="yes"
 481   darwin="yes"
 482   # Disable attempts to use ObjectiveC features in os/object.h since they
 483   # won't work when we're compiling with gcc as a C compiler.
 484   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 485 ;;
 486 sunos)
 487   solaris="yes"
 488   make="${MAKE-gmake}"
 489 # needed for CMSG_ macros in sys/socket.h
 490   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 491 # needed for TIOCWIN* defines in termios.h
 492   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 493 ;;
 494 haiku)
 495   pie="no"
 496   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 497 ;;
 498 linux)
 499   linux="yes"
 500 ;;
 501 esac
 502
 503 if test ! -z "$cpu" ; then
 504   # command line argument
 505   :
 506 elif check_define __i386__ ; then
 507   cpu="i386"
 508 elif check_define __x86_64__ ; then
 509   if check_define __ILP32__ ; then
 510     cpu="x32"
 511   else
 512     cpu="x86_64"
 513   fi
 514 elif check_define __sparc__ ; then
 515   if check_define __arch64__ ; then
 516     cpu="sparc64"
 517   else
 518     cpu="sparc"
 519   fi
 520 elif check_define _ARCH_PPC ; then
 521   if check_define _ARCH_PPC64 ; then
 522     if check_define _LITTLE_ENDIAN ; then
 523       cpu="ppc64le"
 524     else
 525       cpu="ppc64"
 526     fi
 527   else
 528     cpu="ppc"
 529   fi
 530 elif check_define __mips__ ; then
 531   cpu="mips"
 532 elif check_define __s390__ ; then
 533   if check_define __s390x__ ; then
 534     cpu="s390x"
 535   else
 536     cpu="s390"
 537   fi
 538 elif check_define __riscv ; then
 539   cpu="riscv"
 540 elif check_define __arm__ ; then
 541   cpu="arm"
 542 elif check_define __aarch64__ ; then
 543   cpu="aarch64"
 544 elif check_define __loongarch64 ; then
 545   cpu="loongarch64"
 546 else
 547   # Using uname is really broken, but it is just a fallback for architectures
 548   # that are going to use TCI anyway
 549   cpu=$(uname -m)
 550   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 551 fi
 552
 553 # Normalise host CPU name and set multilib cflags.  The canonicalization
 554 # isn't really necessary, because the architectures that we check for
 555 # should not hit the 'uname -m' case, but better safe than sorry.
 556 # Note that this case should only have supported host CPUs, not guests.
 557 case "$cpu" in
 558   armv*b|armv*l|arm)
 559     cpu="arm" ;;
 560
 561   i386|i486|i586|i686)
 562     cpu="i386"
 563     CPU_CFLAGS="-m32" ;;
 564   x32)
 565     cpu="x86_64"
 566     CPU_CFLAGS="-mx32" ;;
 567   x86_64|amd64)
 568     cpu="x86_64"
 569     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 570     # If we truly care, we should simply detect this case at
 571     # runtime and generate the fallback to serial emulation.
 572     CPU_CFLAGS="-m64 -mcx16" ;;
 573
 574   mips*)
 575     cpu="mips" ;;
 576
 577   ppc)
 578     CPU_CFLAGS="-m32" ;;
 579   ppc64)
 580     CPU_CFLAGS="-m64 -mbig-endian" ;;
 581   ppc64le)
 582     cpu="ppc64"
 583     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 584
 585   s390)
 586     CPU_CFLAGS="-m31" ;;
 587   s390x)
 588     CPU_CFLAGS="-m64" ;;
 589
 590   sparc|sun4[cdmuv])
 591     cpu="sparc"
 592     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 593   sparc64)
 594     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 595 esac
 596
 597 : ${make=${MAKE-make}}
 598
 599 # We prefer python 3.x. A bare 'python' is traditionally
 600 # python 2.x, but some distros have it as python 3.x, so
 601 # we check that too
 602 python=
 603 explicit_python=no
 604 for binary in "${PYTHON-python3}" python
 605 do
 606     if has "$binary"
 607     then
 608         python=$(command -v "$binary")
 609         break
 610     fi
 611 done
 612
 613
 614 # Check for ancillary tools used in testing
 615 genisoimage=
 616 for binary in genisoimage mkisofs
 617 do
 618     if has $binary
 619     then
 620         genisoimage=$(command -v "$binary")
 621         break
 622     fi
 623 done
 624
 625 # Default objcc to clang if available, otherwise use CC
 626 if has clang; then
 627   objcc=clang
 628 else
 629   objcc="$cc"
 630 fi
 631
 632 if test "$mingw32" = "yes" ; then
 633   EXESUF=".exe"
 634   # MinGW needs -mthreads for TLS and macro _MT.
 635   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 636   prefix="/qemu"
 637   bindir=""
 638   qemu_suffix=""
 639 fi
 640
 641 werror=""
 642
 643 meson_option_build_array() {
 644   printf '['
 645   (if test "$targetos" = windows; then
 646     IFS=\;
 647   else
 648     IFS=:
 649   fi
 650   for e in $1; do
 651     printf '"""'
 652     # backslash escape any '\' and '"' characters
 653     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 654     printf '""",'
 655   done)
 656   printf ']\n'
 657 }
 658
 659 . "$source_path/scripts/meson-buildoptions.sh"
 660
 661 meson_options=
 662 meson_option_add() {
 663   meson_options="$meson_options $(quote_sh "$1")"
 664 }
 665 meson_option_parse() {
 666   meson_options="$meson_options $(_meson_option_parse "$@")"
 667   if test $? -eq 1; then
 668     echo "ERROR: unknown option $1"
 669     echo "Try '$0 --help' for more information"
 670     exit 1
 671   fi
 672 }
 673
 674 for opt do
 675   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 676   case "$opt" in
 677   --help|-h) show_help=yes
 678   ;;
 679   --version|-V) exec cat "$source_path/VERSION"
 680   ;;
 681   --prefix=*) prefix="$optarg"
 682   ;;
 683   --cross-prefix=*)
 684   ;;
 685   --cc=*)
 686   ;;
 687   --host-cc=*) host_cc="$optarg"
 688   ;;
 689   --cxx=*)
 690   ;;
 691   --objcc=*) objcc="$optarg"
 692   ;;
 693   --make=*) make="$optarg"
 694   ;;
 695   --install=*)
 696   ;;
 697   --python=*) python="$optarg" ; explicit_python=yes
 698   ;;
 699   --skip-meson) skip_meson=yes
 700   ;;
 701   --meson=*) meson="$optarg"
 702   ;;
 703   --ninja=*) ninja="$optarg"
 704   ;;
 705   --smbd=*) smbd="$optarg"
 706   ;;
 707   --extra-cflags=*)
 708   ;;
 709   --extra-cxxflags=*)
 710   ;;
 711   --extra-objcflags=*)
 712   ;;
 713   --extra-ldflags=*)
 714   ;;
 715   --cross-cc-*)
 716   ;;
 717   --cross-prefix-*)
 718   ;;
 719   --enable-debug-info) meson_option_add -Ddebug=true
 720   ;;
 721   --disable-debug-info) meson_option_add -Ddebug=false
 722   ;;
 723   --enable-modules)
 724       modules="yes"
 725   ;;
 726   --disable-modules)
 727       modules="no"
 728   ;;
 729   --cpu=*)
 730   ;;
 731   --target-list=*) target_list="$optarg"
 732                    if test "$target_list_exclude"; then
 733                        error_exit "Can't mix --target-list with --target-list-exclude"
 734                    fi
 735   ;;
 736   --target-list-exclude=*) target_list_exclude="$optarg"
 737                    if test "$target_list"; then
 738                        error_exit "Can't mix --target-list-exclude with --target-list"
 739                    fi
 740   ;;
 741   --with-default-devices) meson_option_add -Ddefault_devices=true
 742   ;;
 743   --without-default-devices) meson_option_add -Ddefault_devices=false
 744   ;;
 745   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 746   ;;
 747   --with-devices-*) device_arch=${opt#--with-devices-};
 748                     device_arch=${device_arch%%=*}
 749                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 750                     if test -f "$cf"; then
 751                         device_archs="$device_archs $device_arch"
 752                         eval "devices_${device_arch}=\$optarg"
 753                     else
 754                         error_exit "File $cf does not exist"
 755                     fi
 756   ;;
 757   --without-default-features) # processed above
 758   ;;
 759   --static)
 760     static="yes"
 761     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 762   ;;
 763   --bindir=*) bindir="$optarg"
 764   ;;
 765   --with-suffix=*) qemu_suffix="$optarg"
 766   ;;
 767   --host=*|--build=*|\
 768   --disable-dependency-tracking|\
 769   --sbindir=*|--sharedstatedir=*|\
 770   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 771   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 772     # These switches are silently ignored, for compatibility with
 773     # autoconf-generated configure scripts. This allows QEMU's
 774     # configure to be used by RPM and similar macros that set
 775     # lots of directory switches by default.
 776   ;;
 777   --enable-debug-tcg) debug_tcg="yes"
 778   ;;
 779   --disable-debug-tcg) debug_tcg="no"
 780   ;;
 781   --enable-debug)
 782       # Enable debugging options that aren't excessively noisy
 783       debug_tcg="yes"
 784       meson_option_parse --enable-debug-mutex ""
 785       meson_option_add -Doptimization=0
 786       fortify_source="no"
 787   ;;
 788   --enable-sanitizers) sanitizers="yes"
 789   ;;
 790   --disable-sanitizers) sanitizers="no"
 791   ;;
 792   --enable-tsan) tsan="yes"
 793   ;;
 794   --disable-tsan) tsan="no"
 795   ;;
 796   --disable-tcg) tcg="disabled"
 797                  plugins="no"
 798   ;;
 799   --enable-tcg) tcg="enabled"
 800   ;;
 801   --disable-system) softmmu="no"
 802   ;;
 803   --enable-system) softmmu="yes"
 804   ;;
 805   --disable-user)
 806       linux_user="no" ;
 807       bsd_user="no" ;
 808   ;;
 809   --enable-user) ;;
 810   --disable-linux-user) linux_user="no"
 811   ;;
 812   --enable-linux-user) linux_user="yes"
 813   ;;
 814   --disable-bsd-user) bsd_user="no"
 815   ;;
 816   --enable-bsd-user) bsd_user="yes"
 817   ;;
 818   --enable-pie) pie="yes"
 819   ;;
 820   --disable-pie) pie="no"
 821   ;;
 822   --enable-werror) werror="yes"
 823   ;;
 824   --disable-werror) werror="no"
 825   ;;
 826   --enable-stack-protector) stack_protector="yes"
 827   ;;
 828   --disable-stack-protector) stack_protector="no"
 829   ;;
 830   --enable-safe-stack) safe_stack="yes"
 831   ;;
 832   --disable-safe-stack) safe_stack="no"
 833   ;;
 834   --enable-cfi)
 835       cfi="true";
 836       meson_option_add -Db_lto=true
 837   ;;
 838   --disable-cfi) cfi="false"
 839   ;;
 840   --disable-fdt) fdt="disabled"
 841   ;;
 842   --enable-fdt) fdt="enabled"
 843   ;;
 844   --enable-fdt=git) fdt="internal"
 845   ;;
 846   --enable-fdt=*) fdt="$optarg"
 847   ;;
 848   --with-coroutine=*) coroutine="$optarg"
 849   ;;
 850   --with-git=*) git="$optarg"
 851   ;;
 852   --with-git-submodules=*)
 853       git_submodules_action="$optarg"
 854   ;;
 855   --enable-plugins) if test "$mingw32" = "yes"; then
 856                         error_exit "TCG plugins not currently supported on Windows platforms"
 857                     else
 858                         plugins="yes"
 859                     fi
 860   ;;
 861   --disable-plugins) plugins="no"
 862   ;;
 863   --enable-containers) use_containers="yes"
 864   ;;
 865   --disable-containers) use_containers="no"
 866   ;;
 867   --gdb=*) gdb_bin="$optarg"
 868   ;;
 869   --enable-vfio-user-server) vfio_user_server="enabled"
 870   ;;
 871   --disable-vfio-user-server) vfio_user_server="disabled"
 872   ;;
 873   # everything else has the same name in configure and meson
 874   --*) meson_option_parse "$opt" "$optarg"
 875   ;;
 876   esac
 877 done
 878
 879 # test for any invalid configuration combinations
 880 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 881     error_exit "Can't enable plugins on non-TCG builds"
 882 fi
 883
 884 case $git_submodules_action in
 885     update|validate)
 886         if test ! -e "$source_path/.git"; then
 887             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 888             exit 1
 889         fi
 890     ;;
 891     ignore)
 892         if ! test -f "$source_path/ui/keycodemapdb/README"
 893         then
 894             echo
 895             echo "ERROR: missing GIT submodules"
 896             echo
 897             if test -e "$source_path/.git"; then
 898                 echo "--with-git-submodules=ignore specified but submodules were not"
 899                 echo "checked out.  Please initialize and update submodules."
 900             else
 901                 echo "This is not a GIT checkout but module content appears to"
 902                 echo "be missing. Do not use 'git archive' or GitHub download links"
 903                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 904                 echo "supported with source archives linked from:"
 905                 echo
 906                 echo "  https://www.qemu.org/download/#source"
 907                 echo
 908                 echo "Developers working with GIT can use scripts/archive-source.sh"
 909                 echo "if they need to create valid source archives."
 910             fi
 911             echo
 912             exit 1
 913         fi
 914     ;;
 915     *)
 916         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 917         exit 1
 918     ;;
 919 esac
 920
 921 default_target_list=""
 922 mak_wilds=""
 923
 924 if [ "$linux_user" != no ]; then
 925     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 926         linux_user=yes
 927     elif [ "$linux_user" = yes ]; then
 928         error_exit "linux-user not supported on this architecture"
 929     fi
 930 fi
 931 if [ "$bsd_user" != no ]; then
 932     if [ "$bsd_user" = "" ]; then
 933         test $targetos = freebsd && bsd_user=yes
 934     fi
 935     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 936         error_exit "bsd-user not supported on this host OS"
 937     fi
 938 fi
 939 if [ "$softmmu" = "yes" ]; then
 940     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 941 fi
 942 if [ "$linux_user" = "yes" ]; then
 943     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 944 fi
 945 if [ "$bsd_user" = "yes" ]; then
 946     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 947 fi
 948
 949 for config in $mak_wilds; do
 950     target="$(basename "$config" .mak)"
 951     if echo "$target_list_exclude" | grep -vq "$target"; then
 952         default_target_list="${default_target_list} $target"
 953     fi
 954 done
 955
 956 if test x"$show_help" = x"yes" ; then
 957 cat << EOF
 958
 959 Usage: configure [options]
 960 Options: [defaults in brackets after descriptions]
 961
 962 Standard options:
 963   --help                   print this message
 964   --prefix=PREFIX          install in PREFIX [$prefix]
 965   --target-list=LIST       set target list (default: build all)
 966 $(echo Available targets: $default_target_list | \
 967   fold -s -w 53 | sed -e 's/^/                           /')
 968   --target-list-exclude=LIST exclude a set of targets from the default target-list
 969
 970 Advanced options (experts only):
 971   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 972   --cc=CC                  use C compiler CC [$cc]
 973   --host-cc=CC             use C compiler CC [$host_cc] for code run at
 974                            build time
 975   --cxx=CXX                use C++ compiler CXX [$cxx]
 976   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
 977   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
 978   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
 979   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
 980   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
 981   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
 982   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
 983   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
 984   --make=MAKE              use specified make [$make]
 985   --python=PYTHON          use specified python [$python]
 986   --meson=MESON            use specified meson [$meson]
 987   --ninja=NINJA            use specified ninja [$ninja]
 988   --smbd=SMBD              use specified smbd [$smbd]
 989   --with-git=GIT           use specified git [$git]
 990   --with-git-submodules=update   update git submodules (default if .git dir exists)
 991   --with-git-submodules=validate fail if git submodules are not up to date
 992   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
 993   --static                 enable static build [$static]
 994   --bindir=PATH            install binaries in PATH
 995   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
 996   --without-default-features default all --enable-* options to "disabled"
 997   --without-default-devices  do not include any device that is not needed to
 998                            start the emulator (only use if you are including
 999                            desired devices in configs/devices/)
1000   --with-devices-ARCH=NAME override default configs/devices
1001   --enable-debug           enable common debug build options
1002   --enable-sanitizers      enable default sanitizers
1003   --enable-tsan            enable thread sanitizer
1004   --disable-werror         disable compilation abort on warning
1005   --disable-stack-protector disable compiler-provided stack protection
1006   --cpu=CPU                Build for host CPU [$cpu]
1007   --with-coroutine=BACKEND coroutine backend. Supported options:
1008                            ucontext, sigaltstack, windows
1009   --enable-plugins
1010                            enable plugins via shared library loading
1011   --disable-containers     don't use containers for cross-building
1012   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1013 EOF
1014   meson_options_help
1015 cat << EOF
1016   system          all system emulation targets
1017   user            supported user emulation targets
1018   linux-user      all linux usermode emulation targets
1019   bsd-user        all BSD usermode emulation targets
1020   pie             Position Independent Executables
1021   modules         modules support (non-Windows)
1022   debug-tcg       TCG debugging (default is disabled)
1023   debug-info      debugging information
1024   safe-stack      SafeStack Stack Smash Protection. Depends on
1025                   clang/llvm and requires coroutine backend ucontext.
1026
1027 NOTE: The object files are built at the place where configure is launched
1028 EOF
1029 exit 0
1030 fi
1031
1032 # Remove old dependency files to make sure that they get properly regenerated
1033 rm -f ./*/config-devices.mak.d
1034
1035 if test -z "$python"
1036 then
1037     error_exit "Python not found. Use --python=/path/to/python"
1038 fi
1039 if ! has "$make"
1040 then
1041     error_exit "GNU make ($make) not found"
1042 fi
1043
1044 # Note that if the Python conditional here evaluates True we will exit
1045 # with status 1 which is a shell 'false' value.
1046 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1047   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1048       "Use --python=/path/to/python to specify a supported Python."
1049 fi
1050
1051 # Suppress writing compiled files
1052 python="$python -B"
1053
1054 if test -z "$meson"; then
1055     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.61.5; then
1056         meson=meson
1057     elif test "$git_submodules_action" != 'ignore' ; then
1058         meson=git
1059     elif test -e "${source_path}/meson/meson.py" ; then
1060         meson=internal
1061     else
1062         if test "$explicit_python" = yes; then
1063             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1064         else
1065             error_exit "Meson not found.  Use --meson=/path/to/meson"
1066         fi
1067     fi
1068 else
1069     # Meson uses its own Python interpreter to invoke other Python scripts,
1070     # but the user wants to use the one they specified with --python.
1071     #
1072     # We do not want to override the distro Python interpreter (and sometimes
1073     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1074     # just require --meson=git|internal together with --python.
1075     if test "$explicit_python" = yes; then
1076         case "$meson" in
1077             git | internal) ;;
1078             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1079         esac
1080     fi
1081 fi
1082
1083 if test "$meson" = git; then
1084     git_submodules="${git_submodules} meson"
1085 fi
1086
1087 case "$meson" in
1088     git | internal)
1089         meson="$python ${source_path}/meson/meson.py"
1090         ;;
1091     *) meson=$(command -v "$meson") ;;
1092 esac
1093
1094 # Probe for ninja
1095
1096 if test -z "$ninja"; then
1097     for c in ninja ninja-build samu; do
1098         if has $c; then
1099             ninja=$(command -v "$c")
1100             break
1101         fi
1102     done
1103     if test -z "$ninja"; then
1104       error_exit "Cannot find Ninja"
1105     fi
1106 fi
1107
1108 # Check that the C compiler works. Doing this here before testing
1109 # the host CPU ensures that we had a valid CC to autodetect the
1110 # $cpu var (and we should bail right here if that's not the case).
1111 # It also allows the help message to be printed without a CC.
1112 write_c_skeleton;
1113 if compile_object ; then
1114   : C compiler works ok
1115 else
1116     error_exit "\"$cc\" either does not exist or does not work"
1117 fi
1118 if ! compile_prog ; then
1119     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1120 fi
1121
1122 # Consult white-list to determine whether to enable werror
1123 # by default.  Only enable by default for git builds
1124 if test -z "$werror" ; then
1125     if test "$git_submodules_action" != "ignore" && \
1126         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1127         werror="yes"
1128     else
1129         werror="no"
1130     fi
1131 fi
1132
1133 if test "$targetos" = "bogus"; then
1134     # Now that we know that we're not printing the help and that
1135     # the compiler works (so the results of the check_defines we used
1136     # to identify the OS are reliable), if we didn't recognize the
1137     # host OS we should stop now.
1138     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1139 fi
1140
1141 # Check whether the compiler matches our minimum requirements:
1142 cat > $TMPC << EOF
1143 #if defined(__clang_major__) && defined(__clang_minor__)
1144 # ifdef __apple_build_version__
1145 #  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1146 #   error You need at least XCode Clang v12.0 to compile QEMU
1147 #  endif
1148 # else
1149 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1150 #   error You need at least Clang v10.0 to compile QEMU
1151 #  endif
1152 # endif
1153 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1154 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1155 #  error You need at least GCC v7.4.0 to compile QEMU
1156 # endif
1157 #else
1158 # error You either need GCC or Clang to compiler QEMU
1159 #endif
1160 int main (void) { return 0; }
1161 EOF
1162 if ! compile_prog "" "" ; then
1163     error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1164 fi
1165
1166 # Accumulate -Wfoo and -Wno-bar separately.
1167 # We will list all of the enable flags first, and the disable flags second.
1168 # Note that we do not add -Werror, because that would enable it for all
1169 # configure tests. If a configure test failed due to -Werror this would
1170 # just silently disable some features, so it's too error prone.
1171
1172 warn_flags=
1173 add_to warn_flags -Wundef
1174 add_to warn_flags -Wwrite-strings
1175 add_to warn_flags -Wmissing-prototypes
1176 add_to warn_flags -Wstrict-prototypes
1177 add_to warn_flags -Wredundant-decls
1178 add_to warn_flags -Wold-style-declaration
1179 add_to warn_flags -Wold-style-definition
1180 add_to warn_flags -Wtype-limits
1181 add_to warn_flags -Wformat-security
1182 add_to warn_flags -Wformat-y2k
1183 add_to warn_flags -Winit-self
1184 add_to warn_flags -Wignored-qualifiers
1185 add_to warn_flags -Wempty-body
1186 add_to warn_flags -Wnested-externs
1187 add_to warn_flags -Wendif-labels
1188 add_to warn_flags -Wexpansion-to-defined
1189 add_to warn_flags -Wimplicit-fallthrough=2
1190 add_to warn_flags -Wmissing-format-attribute
1191 add_to warn_flags -Wthread-safety
1192
1193 nowarn_flags=
1194 add_to nowarn_flags -Wno-initializer-overrides
1195 add_to nowarn_flags -Wno-missing-include-dirs
1196 add_to nowarn_flags -Wno-shift-negative-value
1197 add_to nowarn_flags -Wno-string-plus-int
1198 add_to nowarn_flags -Wno-typedef-redefinition
1199 add_to nowarn_flags -Wno-tautological-type-limit-compare
1200 add_to nowarn_flags -Wno-psabi
1201 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1202
1203 gcc_flags="$warn_flags $nowarn_flags"
1204
1205 cc_has_warning_flag() {
1206     write_c_skeleton;
1207
1208     # Use the positive sense of the flag when testing for -Wno-wombat
1209     # support (gcc will happily accept the -Wno- form of unknown
1210     # warning options).
1211     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1212     compile_prog "-Werror $optflag" ""
1213 }
1214
1215 objcc_has_warning_flag() {
1216     cat > $TMPM <<EOF
1217 int main(void) { return 0; }
1218 EOF
1219
1220     # Use the positive sense of the flag when testing for -Wno-wombat
1221     # support (gcc will happily accept the -Wno- form of unknown
1222     # warning options).
1223     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1224     do_objc -Werror $optflag \
1225       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1226       -o $TMPE $TMPM $QEMU_LDFLAGS
1227 }
1228
1229 for flag in $gcc_flags; do
1230     if cc_has_warning_flag $flag ; then
1231         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1232     fi
1233     if objcc_has_warning_flag $flag ; then
1234         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1235     fi
1236 done
1237
1238 if test "$stack_protector" != "no"; then
1239   cat > $TMPC << EOF
1240 int main(int argc, char *argv[])
1241 {
1242     char arr[64], *p = arr, *c = argv[argc - 1];
1243     while (*c) {
1244         *p++ = *c++;
1245     }
1246     return 0;
1247 }
1248 EOF
1249   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1250   sp_on=0
1251   for flag in $gcc_flags; do
1252     # We need to check both a compile and a link, since some compiler
1253     # setups fail only on a .c->.o compile and some only at link time
1254     if compile_object "-Werror $flag" &&
1255        compile_prog "-Werror $flag" ""; then
1256       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1257       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1258       sp_on=1
1259       break
1260     fi
1261   done
1262   if test "$stack_protector" = yes; then
1263     if test $sp_on = 0; then
1264       error_exit "Stack protector not supported"
1265     fi
1266   fi
1267 fi
1268
1269 # Our module code doesn't support Windows
1270 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1271   error_exit "Modules are not available for Windows"
1272 fi
1273
1274 # Static linking is not possible with plugins, modules or PIE
1275 if test "$static" = "yes" ; then
1276   if test "$modules" = "yes" ; then
1277     error_exit "static and modules are mutually incompatible"
1278   fi
1279   if test "$plugins" = "yes"; then
1280     error_exit "static and plugins are mutually incompatible"
1281   else
1282     plugins="no"
1283   fi
1284 fi
1285 test "$plugins" = "" && plugins=yes
1286
1287 cat > $TMPC << EOF
1288
1289 #ifdef __linux__
1290 #  define THREAD __thread
1291 #else
1292 #  define THREAD
1293 #endif
1294 static THREAD int tls_var;
1295 int main(void) { return tls_var; }
1296 EOF
1297
1298 # Meson currently only handles pie as a boolean for now so if we have
1299 # explicitly disabled PIE we need to extend our cflags because it wont.
1300 if test "$static" = "yes"; then
1301   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1302     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1303     pie="yes"
1304   elif test "$pie" = "yes"; then
1305     error_exit "-static-pie not available due to missing toolchain support"
1306   else
1307     pie="no"
1308     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1309   fi
1310 elif test "$pie" = "no"; then
1311   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1312     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1313     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1314     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1315   fi
1316 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1317   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1318   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1319   pie="yes"
1320 elif test "$pie" = "yes"; then
1321   error_exit "PIE not available due to missing toolchain support"
1322 else
1323   echo "Disabling PIE due to missing toolchain support"
1324   pie="no"
1325 fi
1326
1327 ##########################################
1328 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1329 # use i686 as default anyway, but for those that don't, an explicit
1330 # specification is necessary
1331
1332 if test "$cpu" = "i386"; then
1333   cat > $TMPC << EOF
1334 static int sfaa(int *ptr)
1335 {
1336   return __sync_fetch_and_and(ptr, 0);
1337 }
1338
1339 int main(void)
1340 {
1341   int val = 42;
1342   val = __sync_val_compare_and_swap(&val, 0, 1);
1343   sfaa(&val);
1344   return val;
1345 }
1346 EOF
1347   if ! compile_prog "" "" ; then
1348     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1349   fi
1350 fi
1351
1352 if test -z "${target_list+xxx}" ; then
1353     default_targets=yes
1354     for target in $default_target_list; do
1355         target_list="$target_list $target"
1356     done
1357     target_list="${target_list# }"
1358 else
1359     default_targets=no
1360     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1361     for target in $target_list; do
1362         # Check that we recognised the target name; this allows a more
1363         # friendly error message than if we let it fall through.
1364         case " $default_target_list " in
1365             *" $target "*)
1366                 ;;
1367             *)
1368                 error_exit "Unknown target name '$target'"
1369                 ;;
1370         esac
1371     done
1372 fi
1373
1374 # see if system emulation was really requested
1375 case " $target_list " in
1376   *"-softmmu "*) softmmu=yes
1377   ;;
1378   *) softmmu=no
1379   ;;
1380 esac
1381
1382 if test "$tcg" = "auto"; then
1383   if test -z "$target_list"; then
1384     tcg="disabled"
1385   else
1386     tcg="enabled"
1387   fi
1388 fi
1389
1390 if test "$tcg" = "enabled"; then
1391     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1392     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1393 fi
1394
1395 ##########################################
1396 # big/little endian test
1397 cat > $TMPC << EOF
1398 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1399 # error LITTLE
1400 #endif
1401 int main(void) { return 0; }
1402 EOF
1403
1404 if ! compile_prog ; then
1405   bigendian="no"
1406 else
1407   cat > $TMPC << EOF
1408 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1409 # error BIG
1410 #endif
1411 int main(void) { return 0; }
1412 EOF
1413
1414   if ! compile_prog ; then
1415     bigendian="yes"
1416   else
1417     echo big/little test failed
1418     exit 1
1419   fi
1420 fi
1421
1422 ##########################################
1423 # pkg-config probe
1424
1425 if ! has "$pkg_config_exe"; then
1426   error_exit "pkg-config binary '$pkg_config_exe' not found"
1427 fi
1428
1429 ##########################################
1430 # glib support probe
1431
1432 # When bumping glib_req_ver, please check also whether we should increase
1433 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1434 glib_req_ver=2.56
1435 glib_modules=gthread-2.0
1436 if test "$modules" = yes; then
1437     glib_modules="$glib_modules gmodule-export-2.0"
1438 elif test "$plugins" = "yes"; then
1439     glib_modules="$glib_modules gmodule-no-export-2.0"
1440 fi
1441
1442 for i in $glib_modules; do
1443     if $pkg_config --atleast-version=$glib_req_ver $i; then
1444         glib_cflags=$($pkg_config --cflags $i)
1445         glib_libs=$($pkg_config --libs $i)
1446     else
1447         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1448     fi
1449 done
1450
1451 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1452 if test -z "$glib_bindir" ; then
1453         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1454 fi
1455
1456 # This workaround is required due to a bug in pkg-config file for glib as it
1457 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1458
1459 if test "$static" = yes && test "$mingw32" = yes; then
1460     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1461 fi
1462
1463 # Sanity check that the current size_t matches the
1464 # size that glib thinks it should be. This catches
1465 # problems on multi-arch where people try to build
1466 # 32-bit QEMU while pointing at 64-bit glib headers
1467 cat > $TMPC <<EOF
1468 #include <glib.h>
1469 #include <unistd.h>
1470
1471 #define QEMU_BUILD_BUG_ON(x) \
1472   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1473
1474 int main(void) {
1475    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1476    return 0;
1477 }
1478 EOF
1479
1480 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1481     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1482                "You probably need to set PKG_CONFIG_LIBDIR"\
1483                "to point to the right pkg-config files for your"\
1484                "build target"
1485 fi
1486
1487 # Silence clang warnings triggered by glib < 2.57.2
1488 cat > $TMPC << EOF
1489 #include <glib.h>
1490 typedef struct Foo {
1491     int i;
1492 } Foo;
1493 static void foo_free(Foo *f)
1494 {
1495     g_free(f);
1496 }
1497 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1498 int main(void) { return 0; }
1499 EOF
1500 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1501     if cc_has_warning_flag "-Wno-unused-function"; then
1502         glib_cflags="$glib_cflags -Wno-unused-function"
1503         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1504     fi
1505 fi
1506
1507 ##########################################
1508 # fdt probe
1509
1510 case "$fdt" in
1511   auto | enabled | internal)
1512     # Simpler to always update submodule, even if not needed.
1513     git_submodules="${git_submodules} dtc"
1514     ;;
1515 esac
1516
1517 ##########################################
1518 # check and set a backend for coroutine
1519
1520 # We prefer ucontext, but it's not always possible. The fallback
1521 # is sigcontext. On Windows the only valid backend is the Windows
1522 # specific one.
1523
1524 ucontext_works=no
1525 if test "$darwin" != "yes"; then
1526   cat > $TMPC << EOF
1527 #include <ucontext.h>
1528 #ifdef __stub_makecontext
1529 #error Ignoring glibc stub makecontext which will always fail
1530 #endif
1531 int main(void) { makecontext(0, 0, 0); return 0; }
1532 EOF
1533   if compile_prog "" "" ; then
1534     ucontext_works=yes
1535   fi
1536 fi
1537
1538 if test "$coroutine" = ""; then
1539   if test "$mingw32" = "yes"; then
1540     coroutine=win32
1541   elif test "$ucontext_works" = "yes"; then
1542     coroutine=ucontext
1543   else
1544     coroutine=sigaltstack
1545   fi
1546 else
1547   case $coroutine in
1548   windows)
1549     if test "$mingw32" != "yes"; then
1550       error_exit "'windows' coroutine backend only valid for Windows"
1551     fi
1552     # Unfortunately the user visible backend name doesn't match the
1553     # coroutine-*.c filename for this case, so we have to adjust it here.
1554     coroutine=win32
1555     ;;
1556   ucontext)
1557     if test "$ucontext_works" != "yes"; then
1558       error_exit "'ucontext' backend requested but makecontext not available"
1559     fi
1560     ;;
1561   sigaltstack)
1562     if test "$mingw32" = "yes"; then
1563       error_exit "only the 'windows' coroutine backend is valid for Windows"
1564     fi
1565     ;;
1566   *)
1567     error_exit "unknown coroutine backend $coroutine"
1568     ;;
1569   esac
1570 fi
1571
1572 ##################################################
1573 # SafeStack
1574
1575
1576 if test "$safe_stack" = "yes"; then
1577 cat > $TMPC << EOF
1578 int main(void)
1579 {
1580 #if ! __has_feature(safe_stack)
1581 #error SafeStack Disabled
1582 #endif
1583     return 0;
1584 }
1585 EOF
1586   flag="-fsanitize=safe-stack"
1587   # Check that safe-stack is supported and enabled.
1588   if compile_prog "-Werror $flag" "$flag"; then
1589     # Flag needed both at compilation and at linking
1590     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1591     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1592   else
1593     error_exit "SafeStack not supported by your compiler"
1594   fi
1595   if test "$coroutine" != "ucontext"; then
1596     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1597   fi
1598 else
1599 cat > $TMPC << EOF
1600 int main(void)
1601 {
1602 #if defined(__has_feature)
1603 #if __has_feature(safe_stack)
1604 #error SafeStack Enabled
1605 #endif
1606 #endif
1607     return 0;
1608 }
1609 EOF
1610 if test "$safe_stack" = "no"; then
1611   # Make sure that safe-stack is disabled
1612   if ! compile_prog "-Werror" ""; then
1613     # SafeStack was already enabled, try to explicitly remove the feature
1614     flag="-fno-sanitize=safe-stack"
1615     if ! compile_prog "-Werror $flag" "$flag"; then
1616       error_exit "Configure cannot disable SafeStack"
1617     fi
1618     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1619     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1620   fi
1621 else # "$safe_stack" = ""
1622   # Set safe_stack to yes or no based on pre-existing flags
1623   if compile_prog "-Werror" ""; then
1624     safe_stack="no"
1625   else
1626     safe_stack="yes"
1627     if test "$coroutine" != "ucontext"; then
1628       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1629     fi
1630   fi
1631 fi
1632 fi
1633
1634 ########################################
1635 # check if ccache is interfering with
1636 # semantic analysis of macros
1637
1638 unset CCACHE_CPP2
1639 ccache_cpp2=no
1640 cat > $TMPC << EOF
1641 static const int Z = 1;
1642 #define fn() ({ Z; })
1643 #define TAUT(X) ((X) == Z)
1644 #define PAREN(X, Y) (X == Y)
1645 #define ID(X) (X)
1646 int main(void)
1647 {
1648     int x = 0, y = 0;
1649     x = ID(x);
1650     x = fn();
1651     fn();
1652     if (PAREN(x, y)) return 0;
1653     if (TAUT(Z)) return 0;
1654     return 0;
1655 }
1656 EOF
1657
1658 if ! compile_object "-Werror"; then
1659     ccache_cpp2=yes
1660 fi
1661
1662 #################################################
1663 # clang does not support glibc + FORTIFY_SOURCE.
1664
1665 if test "$fortify_source" != "no"; then
1666   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1667     fortify_source="no";
1668   elif test -n "$cxx" && has $cxx &&
1669        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1670     fortify_source="no";
1671   else
1672     fortify_source="yes"
1673   fi
1674 fi
1675
1676 ##########################################
1677 # checks for sanitizers
1678
1679 have_asan=no
1680 have_ubsan=no
1681 have_asan_iface_h=no
1682 have_asan_iface_fiber=no
1683
1684 if test "$sanitizers" = "yes" ; then
1685   write_c_skeleton
1686   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1687       have_asan=yes
1688   fi
1689
1690   # we could use a simple skeleton for flags checks, but this also
1691   # detect the static linking issue of ubsan, see also:
1692   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1693   cat > $TMPC << EOF
1694 #include <stdlib.h>
1695 int main(void) {
1696     void *tmp = malloc(10);
1697     if (tmp != NULL) {
1698         return *(int *)(tmp + 2);
1699     }
1700     return 1;
1701 }
1702 EOF
1703   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1704       have_ubsan=yes
1705   fi
1706
1707   if check_include "sanitizer/asan_interface.h" ; then
1708       have_asan_iface_h=yes
1709   fi
1710
1711   cat > $TMPC << EOF
1712 #include <sanitizer/asan_interface.h>
1713 int main(void) {
1714   __sanitizer_start_switch_fiber(0, 0, 0);
1715   return 0;
1716 }
1717 EOF
1718   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1719       have_asan_iface_fiber=yes
1720   fi
1721 fi
1722
1723 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1724 # keep it separate until that is not the case.
1725 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1726   error_exit "TSAN is not supported with other sanitiziers."
1727 fi
1728 have_tsan=no
1729 have_tsan_iface_fiber=no
1730 if test "$tsan" = "yes" ; then
1731   write_c_skeleton
1732   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1733       have_tsan=yes
1734   fi
1735   cat > $TMPC << EOF
1736 #include <sanitizer/tsan_interface.h>
1737 int main(void) {
1738   __tsan_create_fiber(0);
1739   return 0;
1740 }
1741 EOF
1742   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1743       have_tsan_iface_fiber=yes
1744   fi
1745 fi
1746
1747 ##########################################
1748 # functions to probe cross compilers
1749
1750 container="no"
1751 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1752     case $($python "$source_path"/tests/docker/docker.py probe) in
1753         *docker) container=docker ;;
1754         podman) container=podman ;;
1755         no) container=no ;;
1756     esac
1757     if test "$container" != "no"; then
1758         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1759     fi
1760 fi
1761
1762 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1763 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1764 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1765 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1766 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1767 : ${cross_prefix_armeb="$cross_prefix_arm"}
1768 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1769 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1770 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1771 : ${cross_prefix_i386="i686-linux-gnu-"}
1772 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1773 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1774 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1775 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1776 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1777 : ${cross_prefix_mips="mips-linux-gnu-"}
1778 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1779 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1780 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1781 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1782 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1783 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1784 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1785 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1786 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1787 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1788
1789 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1790 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1791 : ${cross_cc_armeb="$cross_cc_arm"}
1792 : ${cross_cc_cflags_armeb="-mbig-endian"}
1793 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1794 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1795 : ${cross_cc_cflags_i386="-m32"}
1796 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1797 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1798 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1799 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1800 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1801 : ${cross_cc_sparc="$cross_cc_sparc64"}
1802 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1803 : ${cross_cc_cflags_x86_64="-m64"}
1804
1805 compute_target_variable() {
1806   eval "$2="
1807   if eval test -n "\"\${cross_prefix_$1}\""; then
1808     if eval has "\"\${cross_prefix_$1}\$3\""; then
1809       eval "$2=\"\${cross_prefix_$1}\$3\""
1810     fi
1811   fi
1812 }
1813
1814 have_target() {
1815   for i; do
1816     case " $target_list " in
1817       *" $i "*) return 0;;
1818       *) ;;
1819     esac
1820   done
1821   return 1
1822 }
1823
1824 # probe_target_compiler TARGET
1825 #
1826 # Look for a compiler for the given target, either native or cross.
1827 # Set variables target_* if a compiler is found, and container_cross_*
1828 # if a Docker-based cross-compiler image is known for the target.
1829 # Set got_cross_cc to yes/no depending on whether a non-container-based
1830 # compiler was found.
1831 #
1832 # If TARGET is a user-mode emulation target, also set build_static to
1833 # "y" if static linking is possible.
1834 #
1835 probe_target_compiler() {
1836   # reset all output variables
1837   got_cross_cc=no
1838   container_image=
1839   container_hosts=
1840   container_cross_cc=
1841   container_cross_ar=
1842   container_cross_as=
1843   container_cross_ld=
1844   container_cross_nm=
1845   container_cross_objcopy=
1846   container_cross_ranlib=
1847   container_cross_strip=
1848
1849   # We shall skip configuring the target compiler if the user didn't
1850   # bother enabling an appropriate guest. This avoids building
1851   # extraneous firmware images and tests.
1852   if test "${target_list#*$1}" = "$1"; then
1853       return 1
1854   fi
1855
1856   target_arch=${1%%-*}
1857   case $target_arch in
1858     aarch64) container_hosts="x86_64 aarch64" ;;
1859     alpha) container_hosts=x86_64 ;;
1860     arm) container_hosts="x86_64 aarch64" ;;
1861     cris) container_hosts=x86_64 ;;
1862     hexagon) container_hosts=x86_64 ;;
1863     hppa) container_hosts=x86_64 ;;
1864     i386) container_hosts=x86_64 ;;
1865     loongarch64) container_hosts=x86_64 ;;
1866     m68k) container_hosts=x86_64 ;;
1867     microblaze) container_hosts=x86_64 ;;
1868     mips64el) container_hosts=x86_64 ;;
1869     mips64) container_hosts=x86_64 ;;
1870     mipsel) container_hosts=x86_64 ;;
1871     mips) container_hosts=x86_64 ;;
1872     nios2) container_hosts=x86_64 ;;
1873     ppc) container_hosts=x86_64 ;;
1874     ppc64|ppc64le) container_hosts=x86_64 ;;
1875     riscv64) container_hosts=x86_64 ;;
1876     s390x) container_hosts=x86_64 ;;
1877     sh4) container_hosts=x86_64 ;;
1878     sparc64) container_hosts=x86_64 ;;
1879     tricore) container_hosts=x86_64 ;;
1880     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1881     xtensa*) container_hosts=x86_64 ;;
1882   esac
1883
1884   for host in $container_hosts; do
1885     test "$container" != no || continue
1886     test "$host" = "$cpu" || continue
1887     case $target_arch in
1888       aarch64)
1889         # We don't have any bigendian build tools so we only use this for AArch64
1890         container_image=debian-arm64-cross
1891         container_cross_prefix=aarch64-linux-gnu-
1892         container_cross_cc=${container_cross_prefix}gcc-10
1893         ;;
1894       alpha)
1895         container_image=debian-alpha-cross
1896         container_cross_prefix=alpha-linux-gnu-
1897         ;;
1898       arm)
1899         # We don't have any bigendian build tools so we only use this for ARM
1900         container_image=debian-armhf-cross
1901         container_cross_prefix=arm-linux-gnueabihf-
1902         ;;
1903       cris)
1904         container_image=fedora-cris-cross
1905         container_cross_prefix=cris-linux-gnu-
1906         ;;
1907       hexagon)
1908         container_image=debian-hexagon-cross
1909         container_cross_prefix=hexagon-unknown-linux-musl-
1910         container_cross_cc=${container_cross_prefix}clang
1911         ;;
1912       hppa)
1913         container_image=debian-hppa-cross
1914         container_cross_prefix=hppa-linux-gnu-
1915         ;;
1916       i386)
1917         container_image=fedora-i386-cross
1918         container_cross_prefix=
1919         ;;
1920       loongarch64)
1921         container_image=debian-loongarch-cross
1922         container_cross_prefix=loongarch64-unknown-linux-gnu-
1923         ;;
1924       m68k)
1925         container_image=debian-m68k-cross
1926         container_cross_prefix=m68k-linux-gnu-
1927         ;;
1928       microblaze)
1929         container_image=debian-microblaze-cross
1930         container_cross_prefix=microblaze-linux-musl-
1931         ;;
1932       mips64el)
1933         container_image=debian-mips64el-cross
1934         container_cross_prefix=mips64el-linux-gnuabi64-
1935         ;;
1936       mips64)
1937         container_image=debian-mips64-cross
1938         container_cross_prefix=mips64-linux-gnuabi64-
1939         ;;
1940       mipsel)
1941         container_image=debian-mipsel-cross
1942         container_cross_prefix=mipsel-linux-gnu-
1943         ;;
1944       mips)
1945         container_image=debian-mips-cross
1946         container_cross_prefix=mips-linux-gnu-
1947         ;;
1948       nios2)
1949         container_image=debian-nios2-cross
1950         container_cross_prefix=nios2-linux-gnu-
1951         ;;
1952       ppc)
1953         container_image=debian-powerpc-test-cross
1954         container_cross_prefix=powerpc-linux-gnu-
1955         container_cross_cc=${container_cross_prefix}gcc-10
1956         ;;
1957       ppc64|ppc64le)
1958         container_image=debian-powerpc-test-cross
1959         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1960         container_cross_cc=${container_cross_prefix}gcc-10
1961         ;;
1962       riscv64)
1963         container_image=debian-riscv64-test-cross
1964         container_cross_prefix=riscv64-linux-gnu-
1965         ;;
1966       s390x)
1967         container_image=debian-s390x-cross
1968         container_cross_prefix=s390x-linux-gnu-
1969         ;;
1970       sh4)
1971         container_image=debian-sh4-cross
1972         container_cross_prefix=sh4-linux-gnu-
1973         ;;
1974       sparc64)
1975         container_image=debian-sparc64-cross
1976         container_cross_prefix=sparc64-linux-gnu-
1977         ;;
1978       tricore)
1979         container_image=debian-tricore-cross
1980         container_cross_prefix=tricore-
1981         container_cross_as=tricore-as
1982         container_cross_ld=tricore-ld
1983         break
1984         ;;
1985       x86_64)
1986         container_image=debian-amd64-cross
1987         container_cross_prefix=x86_64-linux-gnu-
1988         ;;
1989       xtensa*)
1990         container_hosts=x86_64
1991         container_image=debian-xtensa-cross
1992
1993         # default to the dc232b cpu
1994         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1995         ;;
1996     esac
1997     : ${container_cross_cc:=${container_cross_prefix}gcc}
1998     : ${container_cross_ar:=${container_cross_prefix}ar}
1999     : ${container_cross_as:=${container_cross_prefix}as}
2000     : ${container_cross_ld:=${container_cross_prefix}ld}
2001     : ${container_cross_nm:=${container_cross_prefix}nm}
2002     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2003     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2004     : ${container_cross_strip:=${container_cross_prefix}strip}
2005   done
2006
2007   try=cross
2008   case "$target_arch:$cpu" in
2009     aarch64_be:aarch64 | \
2010     armeb:arm | \
2011     i386:x86_64 | \
2012     mips*:mips64 | \
2013     ppc*:ppc64 | \
2014     sparc:sparc64 | \
2015     "$cpu:$cpu")
2016       try='native cross' ;;
2017   esac
2018   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2019   for thistry in $try; do
2020     case $thistry in
2021     native)
2022       target_cc=$cc
2023       target_ccas=$ccas
2024       target_ar=$ar
2025       target_as=$as
2026       target_ld=$ld
2027       target_nm=$nm
2028       target_objcopy=$objcopy
2029       target_ranlib=$ranlib
2030       target_strip=$strip
2031       ;;
2032     cross)
2033       target_cc=
2034       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2035         if eval has "\"\${cross_cc_$target_arch}\""; then
2036           eval "target_cc=\"\${cross_cc_$target_arch}\""
2037         fi
2038       else
2039         compute_target_variable $target_arch target_cc gcc
2040       fi
2041       target_ccas=$target_cc
2042       compute_target_variable $target_arch target_ar ar
2043       compute_target_variable $target_arch target_as as
2044       compute_target_variable $target_arch target_ld ld
2045       compute_target_variable $target_arch target_nm nm
2046       compute_target_variable $target_arch target_objcopy objcopy
2047       compute_target_variable $target_arch target_ranlib ranlib
2048       compute_target_variable $target_arch target_strip strip
2049       ;;
2050     esac
2051
2052     if test -n "$target_cc"; then
2053       case $target_arch in
2054         i386|x86_64)
2055           if $target_cc --version | grep -qi "clang"; then
2056             continue
2057           fi
2058           ;;
2059       esac
2060     elif test -n "$target_as" && test -n "$target_ld"; then
2061       # Special handling for assembler only targets
2062       case $target in
2063         tricore-softmmu)
2064           build_static=
2065           got_cross_cc=yes
2066           break
2067           ;;
2068         *)
2069           continue
2070           ;;
2071       esac
2072     else
2073       continue
2074     fi
2075
2076     write_c_skeleton
2077     case $1 in
2078       *-softmmu)
2079         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2080           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2081           got_cross_cc=yes
2082           break
2083         fi
2084         ;;
2085       *)
2086         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2087           build_static=y
2088           got_cross_cc=yes
2089           break
2090         fi
2091         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2092           build_static=
2093           got_cross_cc=yes
2094           break
2095         fi
2096         ;;
2097     esac
2098   done
2099   if test $got_cross_cc != yes; then
2100     build_static=
2101     target_cc=
2102     target_ccas=
2103     target_ar=
2104     target_as=
2105     target_ld=
2106     target_nm=
2107     target_objcopy=
2108     target_ranlib=
2109     target_strip=
2110   fi
2111   test -n "$target_cc"
2112 }
2113
2114 write_target_makefile() {
2115   echo "EXTRA_CFLAGS=$target_cflags"
2116   if test -z "$target_cc" && test -z "$target_as"; then
2117     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2118     echo "$1: docker-image-$container_image" >> Makefile.prereqs
2119     if test -n "$container_cross_cc"; then
2120       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2121       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2122     fi
2123     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2124     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2125     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2126     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2127     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2128     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2129     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2130   else
2131     if test -n "$target_cc"; then
2132       echo "CC=$target_cc"
2133       echo "CCAS=$target_ccas"
2134     fi
2135     if test -n "$target_ar"; then
2136       echo "AR=$target_ar"
2137     fi
2138     if test -n "$target_as"; then
2139       echo "AS=$target_as"
2140     fi
2141     if test -n "$target_ld"; then
2142       echo "LD=$target_ld"
2143     fi
2144     if test -n "$target_nm"; then
2145       echo "NM=$target_nm"
2146     fi
2147     if test -n "$target_objcopy"; then
2148       echo "OBJCOPY=$target_objcopy"
2149     fi
2150     if test -n "$target_ranlib"; then
2151       echo "RANLIB=$target_ranlib"
2152     fi
2153     if test -n "$target_strip"; then
2154       echo "STRIP=$target_strip"
2155     fi
2156   fi
2157 }
2158
2159 ##########################################
2160 # check for vfio_user_server
2161
2162 case "$vfio_user_server" in
2163   enabled )
2164     if test "$git_submodules_action" != "ignore"; then
2165       git_submodules="${git_submodules} subprojects/libvfio-user"
2166     fi
2167     ;;
2168 esac
2169
2170 ##########################################
2171 # End of CC checks
2172 # After here, no more $cc or $ld runs
2173
2174 write_c_skeleton
2175
2176 if test "$fortify_source" = "yes" ; then
2177   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2178 fi
2179
2180 if test "$have_asan" = "yes"; then
2181   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2182   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2183   if test "$have_asan_iface_h" = "no" ; then
2184       echo "ASAN build enabled, but ASAN header missing." \
2185            "Without code annotation, the report may be inferior."
2186   elif test "$have_asan_iface_fiber" = "no" ; then
2187       echo "ASAN build enabled, but ASAN header is too old." \
2188            "Without code annotation, the report may be inferior."
2189   fi
2190 fi
2191 if test "$have_tsan" = "yes" ; then
2192   if test "$have_tsan_iface_fiber" = "yes" ; then
2193     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2194     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2195   else
2196     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2197   fi
2198 elif test "$tsan" = "yes" ; then
2199   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2200 fi
2201 if test "$have_ubsan" = "yes"; then
2202   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2203   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2204 fi
2205
2206 #######################################
2207 # cross-compiled firmware targets
2208
2209 # Set up build tree symlinks that point back into the source tree
2210 # (these can be both files and directories).
2211 # Caution: avoid adding files or directories here using wildcards. This
2212 # will result in problems later if a new file matching the wildcard is
2213 # added to the source tree -- nothing will cause configure to be rerun
2214 # so the build tree will be missing the link back to the new file, and
2215 # tests might fail. Prefer to keep the relevant files in their own
2216 # directory and symlink the directory instead.
2217 LINKS="Makefile"
2218 LINKS="$LINKS pc-bios/optionrom/Makefile"
2219 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2220 LINKS="$LINKS pc-bios/vof/Makefile"
2221 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2222 LINKS="$LINKS tests/avocado tests/data"
2223 LINKS="$LINKS tests/qemu-iotests/check"
2224 LINKS="$LINKS python"
2225 LINKS="$LINKS contrib/plugins/Makefile "
2226 for f in $LINKS ; do
2227     if [ -e "$source_path/$f" ]; then
2228         mkdir -p "$(dirname ./"$f")"
2229         symlink "$source_path/$f" "$f"
2230     fi
2231 done
2232
2233 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2234
2235 # Mac OS X ships with a broken assembler
2236 roms=
2237 if have_target i386-softmmu x86_64-softmmu && \
2238         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2239         test "$targetos" != "haiku" && \
2240         probe_target_compiler i386-softmmu; then
2241     roms="pc-bios/optionrom"
2242     config_mak=pc-bios/optionrom/config.mak
2243     echo "# Automatically generated by configure - do not modify" > $config_mak
2244     echo "TOPSRC_DIR=$source_path" >> $config_mak
2245     write_target_makefile >> $config_mak
2246 fi
2247
2248 if have_target ppc-softmmu ppc64-softmmu && \
2249         probe_target_compiler ppc-softmmu; then
2250     roms="$roms pc-bios/vof"
2251     config_mak=pc-bios/vof/config.mak
2252     echo "# Automatically generated by configure - do not modify" > $config_mak
2253     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2254     write_target_makefile >> $config_mak
2255 fi
2256
2257 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2258 # (which is the lowest architecture level that Clang supports)
2259 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2260   write_c_skeleton
2261   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2262   has_z900=$?
2263   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2264     if [ $has_z900 != 0 ]; then
2265       echo "WARNING: Your compiler does not support the z900!"
2266       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2267     fi
2268     roms="$roms pc-bios/s390-ccw"
2269     config_mak=pc-bios/s390-ccw/config-host.mak
2270     echo "# Automatically generated by configure - do not modify" > $config_mak
2271     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2272     write_target_makefile >> $config_mak
2273     # SLOF is required for building the s390-ccw firmware on s390x,
2274     # since it is using the libnet code from SLOF for network booting.
2275     git_submodules="${git_submodules} roms/SLOF"
2276   fi
2277 fi
2278
2279 #######################################
2280 # generate config-host.mak
2281
2282 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2283     exit 1
2284 fi
2285
2286 config_host_mak="config-host.mak"
2287
2288 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2289 echo >> $config_host_mak
2290
2291 echo all: >> $config_host_mak
2292 echo "GIT=$git" >> $config_host_mak
2293 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2294 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2295
2296 if test "$debug_tcg" = "yes" ; then
2297   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2298 fi
2299 if test "$mingw32" = "yes" ; then
2300   echo "CONFIG_WIN32=y" >> $config_host_mak
2301   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2302   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2303   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2304 else
2305   echo "CONFIG_POSIX=y" >> $config_host_mak
2306 fi
2307
2308 if test "$linux" = "yes" ; then
2309   echo "CONFIG_LINUX=y" >> $config_host_mak
2310 fi
2311
2312 if test "$darwin" = "yes" ; then
2313   echo "CONFIG_DARWIN=y" >> $config_host_mak
2314 fi
2315
2316 if test "$solaris" = "yes" ; then
2317   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2318 fi
2319 if test "$static" = "yes" ; then
2320   echo "CONFIG_STATIC=y" >> $config_host_mak
2321 fi
2322 echo "SRC_PATH=$source_path" >> $config_host_mak
2323 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2324 if test "$modules" = "yes"; then
2325   echo "CONFIG_MODULES=y" >> $config_host_mak
2326 fi
2327
2328 # XXX: suppress that
2329 if [ "$bsd" = "yes" ] ; then
2330   echo "CONFIG_BSD=y" >> $config_host_mak
2331 fi
2332
2333 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2334
2335 if test "$have_asan_iface_fiber" = "yes" ; then
2336     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2337 fi
2338
2339 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2340     echo "CONFIG_TSAN=y" >> $config_host_mak
2341 fi
2342
2343 if test "$plugins" = "yes" ; then
2344     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2345 fi
2346
2347 if test -n "$gdb_bin"; then
2348     gdb_version=$($gdb_bin --version | head -n 1)
2349     if version_ge ${gdb_version##* } 9.1; then
2350         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2351     else
2352         gdb_bin=""
2353     fi
2354 fi
2355
2356 if test "$container" != no; then
2357     echo "ENGINE=$container" >> $config_host_mak
2358 fi
2359 echo "ROMS=$roms" >> $config_host_mak
2360 echo "MAKE=$make" >> $config_host_mak
2361 echo "PYTHON=$python" >> $config_host_mak
2362 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2363 echo "MESON=$meson" >> $config_host_mak
2364 echo "NINJA=$ninja" >> $config_host_mak
2365 echo "CC=$cc" >> $config_host_mak
2366 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2367 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2368 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2369 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2370 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2371 echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak
2372 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2373 echo "EXESUF=$EXESUF" >> $config_host_mak
2374
2375 # use included Linux headers
2376 if test "$linux" = "yes" ; then
2377   mkdir -p linux-headers
2378   case "$cpu" in
2379   i386|x86_64)
2380     linux_arch=x86
2381     ;;
2382   ppc|ppc64)
2383     linux_arch=powerpc
2384     ;;
2385   s390x)
2386     linux_arch=s390
2387     ;;
2388   aarch64)
2389     linux_arch=arm64
2390     ;;
2391   loongarch*)
2392     linux_arch=loongarch
2393     ;;
2394   mips64)
2395     linux_arch=mips
2396     ;;
2397   *)
2398     # For most CPUs the kernel architecture name and QEMU CPU name match.
2399     linux_arch="$cpu"
2400     ;;
2401   esac
2402     # For non-KVM architectures we will not have asm headers
2403     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2404       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2405     fi
2406 fi
2407
2408 for target in $target_list; do
2409     target_dir="$target"
2410     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2411     mkdir -p "$target_dir"
2412     case $target in
2413         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2414         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2415     esac
2416 done
2417
2418 if test "$default_targets" = "yes"; then
2419   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2420 fi
2421
2422 if test "$ccache_cpp2" = "yes"; then
2423   echo "export CCACHE_CPP2=y" >> $config_host_mak
2424 fi
2425
2426 if test "$safe_stack" = "yes"; then
2427   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2428 fi
2429
2430 # tests/tcg configuration
2431 (config_host_mak=tests/tcg/config-host.mak
2432 mkdir -p tests/tcg
2433 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2434 echo "SRC_PATH=$source_path" >> $config_host_mak
2435 echo "HOST_CC=$host_cc" >> $config_host_mak
2436
2437 # versioned checked in the main config_host.mak above
2438 if test -n "$gdb_bin"; then
2439     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2440 fi
2441 if test "$plugins" = "yes" ; then
2442     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2443 fi
2444
2445 tcg_tests_targets=
2446 for target in $target_list; do
2447   arch=${target%%-*}
2448
2449   case $target in
2450     xtensa*-linux-user)
2451       # the toolchain is not complete with headers, only build softmmu tests
2452       continue
2453       ;;
2454     *-softmmu)
2455       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2456       qemu="qemu-system-$arch"
2457       ;;
2458     *-linux-user|*-bsd-user)
2459       qemu="qemu-$arch"
2460       ;;
2461   esac
2462
2463   if probe_target_compiler $target || test -n "$container_image"; then
2464       test -n "$container_image" && build_static=y
2465       mkdir -p "tests/tcg/$target"
2466       config_target_mak=tests/tcg/$target/config-target.mak
2467       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2468       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2469       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2470       echo "TARGET=$target" >> "$config_target_mak"
2471       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2472       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2473       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2474       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2475       tcg_tests_targets="$tcg_tests_targets $target"
2476   fi
2477 done
2478
2479 if test "$tcg" = "enabled"; then
2480     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2481 fi
2482 )
2483
2484 if test "$skip_meson" = no; then
2485   cross="config-meson.cross.new"
2486   meson_quote() {
2487     test $# = 0 && return
2488     echo "'$(echo $* | sed "s/ /','/g")'"
2489   }
2490
2491   echo "# Automatically generated by configure - do not modify" > $cross
2492   echo "[properties]" >> $cross
2493
2494   # unroll any custom device configs
2495   for a in $device_archs; do
2496       eval "c=\$devices_${a}"
2497       echo "${a}-softmmu = '$c'" >> $cross
2498   done
2499
2500   echo "[built-in options]" >> $cross
2501   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2502   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2503   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2504   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2505   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2506   echo "[binaries]" >> $cross
2507   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2508   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2509   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2510   echo "ar = [$(meson_quote $ar)]" >> $cross
2511   echo "nm = [$(meson_quote $nm)]" >> $cross
2512   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2513   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2514   if has $sdl2_config; then
2515     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2516   fi
2517   echo "strip = [$(meson_quote $strip)]" >> $cross
2518   echo "widl = [$(meson_quote $widl)]" >> $cross
2519   echo "windres = [$(meson_quote $windres)]" >> $cross
2520   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2521   if test "$cross_compile" = "yes"; then
2522     cross_arg="--cross-file config-meson.cross"
2523     echo "[host_machine]" >> $cross
2524     echo "system = '$targetos'" >> $cross
2525     case "$cpu" in
2526         i386)
2527             echo "cpu_family = 'x86'" >> $cross
2528             ;;
2529         *)
2530             echo "cpu_family = '$cpu'" >> $cross
2531             ;;
2532     esac
2533     echo "cpu = '$cpu'" >> $cross
2534     if test "$bigendian" = "yes" ; then
2535         echo "endian = 'big'" >> $cross
2536     else
2537         echo "endian = 'little'" >> $cross
2538     fi
2539   else
2540     cross_arg="--native-file config-meson.cross"
2541   fi
2542   mv $cross config-meson.cross
2543
2544   rm -rf meson-private meson-info meson-logs
2545
2546   # Built-in options
2547   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2548   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2549   test "$pie" = no && meson_option_add -Db_pie=false
2550   test "$werror" = yes && meson_option_add -Dwerror=true
2551
2552   # QEMU options
2553   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2554   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2555   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2556   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2557   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2558   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2559   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2560   run_meson() {
2561     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2562   }
2563   eval run_meson $meson_options
2564   if test "$?" -ne 0 ; then
2565       error_exit "meson setup failed"
2566   fi
2567 fi
2568
2569 # Save the configure command line for later reuse.
2570 cat <<EOD >config.status
2571 #!/bin/sh
2572 # Generated by configure.
2573 # Run this file to recreate the current configuration.
2574 # Compiler output produced by configure, useful for debugging
2575 # configure, is in config.log if it exists.
2576 EOD
2577
2578 preserve_env() {
2579     envname=$1
2580
2581     eval envval=\$$envname
2582
2583     if test -n "$envval"
2584     then
2585         echo "$envname='$envval'" >> config.status
2586         echo "export $envname" >> config.status
2587     else
2588         echo "unset $envname" >> config.status
2589     fi
2590 }
2591
2592 # Preserve various env variables that influence what
2593 # features/build target configure will detect
2594 preserve_env AR
2595 preserve_env AS
2596 preserve_env CC
2597 preserve_env CFLAGS
2598 preserve_env CXX
2599 preserve_env CXXFLAGS
2600 preserve_env LD
2601 preserve_env LDFLAGS
2602 preserve_env LD_LIBRARY_PATH
2603 preserve_env MAKE
2604 preserve_env NM
2605 preserve_env OBJCFLAGS
2606 preserve_env OBJCOPY
2607 preserve_env PATH
2608 preserve_env PKG_CONFIG
2609 preserve_env PKG_CONFIG_LIBDIR
2610 preserve_env PKG_CONFIG_PATH
2611 preserve_env PYTHON
2612 preserve_env QEMU_GA_MANUFACTURER
2613 preserve_env QEMU_GA_DISTRO
2614 preserve_env QEMU_GA_VERSION
2615 preserve_env SDL2_CONFIG
2616 preserve_env SMBD
2617 preserve_env STRIP
2618 preserve_env WIDL
2619 preserve_env WINDRES
2620 preserve_env WINDMC
2621
2622 printf "exec" >>config.status
2623 for i in "$0" "$@"; do
2624   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2625 done
2626 echo ' "$@"' >>config.status
2627 chmod +x config.status
2628
2629 rm -r "$TMPDIR1"