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=$(command -v "gdb-multiarch" || command -v "gdb")
 233 gdb_arches=""
 234
 235 if test -e "$source_path/.git"
 236 then
 237     git_submodules_action="update"
 238 else
 239     git_submodules_action="ignore"
 240 fi
 241
 242 git_submodules="ui/keycodemapdb"
 243 git="git"
 244
 245 # Don't accept a target_list environment variable.
 246 unset target_list
 247 unset target_list_exclude
 248
 249 # Default value for a variable defining feature "foo".
 250 #  * foo="no"  feature will only be used if --enable-foo arg is given
 251 #  * foo=""    feature will be searched for, and if found, will be used
 252 #              unless --disable-foo is given
 253 #  * foo="yes" this value will only be set by --enable-foo flag.
 254 #              feature will searched for,
 255 #              if not found, configure exits with error
 256 #
 257 # Always add --enable-foo and --disable-foo command line args.
 258 # Distributions want to ensure that several features are compiled in, and it
 259 # is impossible without a --enable-foo that exits if a feature is not found.
 260
 261 default_feature=""
 262 # parse CC options second
 263 for opt do
 264   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 265   case "$opt" in
 266       --without-default-features)
 267           default_feature="no"
 268   ;;
 269   esac
 270 done
 271
 272 EXTRA_CFLAGS=""
 273 EXTRA_CXXFLAGS=""
 274 EXTRA_OBJCFLAGS=""
 275 EXTRA_LDFLAGS=""
 276
 277 debug_tcg="no"
 278 sanitizers="no"
 279 tsan="no"
 280 fortify_source="yes"
 281 EXESUF=""
 282 modules="no"
 283 prefix="/usr/local"
 284 qemu_suffix="qemu"
 285 softmmu="yes"
 286 linux_user=""
 287 bsd_user=""
 288 pie=""
 289 coroutine=""
 290 plugins="$default_feature"
 291 meson=""
 292 ninja=""
 293 bindir="bin"
 294 skip_meson=no
 295 vfio_user_server="disabled"
 296
 297 # The following Meson options are handled manually (still they
 298 # are included in the automatically generated help message)
 299
 300 # 1. Track which submodules are needed
 301 fdt="auto"
 302
 303 # 2. Automatically enable/disable other options
 304 tcg="auto"
 305 cfi="false"
 306
 307 # parse CC options second
 308 for opt do
 309   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 310   case "$opt" in
 311   --cross-prefix=*) cross_prefix="$optarg"
 312                     cross_compile="yes"
 313   ;;
 314   --cc=*) CC="$optarg"
 315   ;;
 316   --cxx=*) CXX="$optarg"
 317   ;;
 318   --cpu=*) cpu="$optarg"
 319   ;;
 320   --extra-cflags=*)
 321     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 322     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 323     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 324     ;;
 325   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 326   ;;
 327   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 328   ;;
 329   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 330   ;;
 331   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 332   ;;
 333   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 334                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 335   ;;
 336   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 337                 eval "cross_cc_${cc_arch}=\$optarg"
 338   ;;
 339   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 340   ;;
 341   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 342                     eval "cross_prefix_${cc_arch}=\$optarg"
 343   ;;
 344   esac
 345 done
 346
 347 # Preferred compiler:
 348 #  ${CC} (if set)
 349 #  ${cross_prefix}gcc (if cross-prefix specified)
 350 #  system compiler
 351 if test -z "${CC}${cross_prefix}"; then
 352   cc="$host_cc"
 353 else
 354   cc="${CC-${cross_prefix}gcc}"
 355 fi
 356
 357 if test -z "${CXX}${cross_prefix}"; then
 358   cxx="c++"
 359 else
 360   cxx="${CXX-${cross_prefix}g++}"
 361 fi
 362
 363 ar="${AR-${cross_prefix}ar}"
 364 as="${AS-${cross_prefix}as}"
 365 ccas="${CCAS-$cc}"
 366 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 367 ld="${LD-${cross_prefix}ld}"
 368 ranlib="${RANLIB-${cross_prefix}ranlib}"
 369 nm="${NM-${cross_prefix}nm}"
 370 smbd="$SMBD"
 371 strip="${STRIP-${cross_prefix}strip}"
 372 widl="${WIDL-${cross_prefix}widl}"
 373 windres="${WINDRES-${cross_prefix}windres}"
 374 windmc="${WINDMC-${cross_prefix}windmc}"
 375 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 376 query_pkg_config() {
 377     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 378 }
 379 pkg_config=query_pkg_config
 380 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 381
 382 # default flags for all hosts
 383 # We use -fwrapv to tell the compiler that we require a C dialect where
 384 # left shift of signed integers is well defined and has the expected
 385 # 2s-complement style results. (Both clang and gcc agree that it
 386 # provides these semantics.)
 387 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 388 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 389
 390 QEMU_LDFLAGS=
 391
 392 # Flags that are needed during configure but later taken care of by Meson
 393 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 394 CONFIGURE_LDFLAGS=
 395
 396
 397 check_define() {
 398 cat > $TMPC <<EOF
 399 #if !defined($1)
 400 #error $1 not defined
 401 #endif
 402 int main(void) { return 0; }
 403 EOF
 404   compile_object
 405 }
 406
 407 check_include() {
 408 cat > $TMPC <<EOF
 409 #include <$1>
 410 int main(void) { return 0; }
 411 EOF
 412   compile_object
 413 }
 414
 415 write_c_skeleton() {
 416     cat > $TMPC <<EOF
 417 int main(void) { return 0; }
 418 EOF
 419 }
 420
 421 if check_define __linux__ ; then
 422   targetos=linux
 423 elif check_define _WIN32 ; then
 424   targetos=windows
 425 elif check_define __OpenBSD__ ; then
 426   targetos=openbsd
 427 elif check_define __sun__ ; then
 428   targetos=sunos
 429 elif check_define __HAIKU__ ; then
 430   targetos=haiku
 431 elif check_define __FreeBSD__ ; then
 432   targetos=freebsd
 433 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 434   targetos=gnu/kfreebsd
 435 elif check_define __DragonFly__ ; then
 436   targetos=dragonfly
 437 elif check_define __NetBSD__; then
 438   targetos=netbsd
 439 elif check_define __APPLE__; then
 440   targetos=darwin
 441 else
 442   # This is a fatal error, but don't report it yet, because we
 443   # might be going to just print the --help text, or it might
 444   # be the result of a missing compiler.
 445   targetos=bogus
 446 fi
 447
 448 # OS specific
 449
 450 mingw32="no"
 451 bsd="no"
 452 linux="no"
 453 solaris="no"
 454 case $targetos in
 455 windows)
 456   mingw32="yes"
 457   plugins="no"
 458   pie="no"
 459 ;;
 460 gnu/kfreebsd)
 461   bsd="yes"
 462 ;;
 463 freebsd)
 464   bsd="yes"
 465   make="${MAKE-gmake}"
 466   # needed for kinfo_getvmmap(3) in libutil.h
 467 ;;
 468 dragonfly)
 469   bsd="yes"
 470   make="${MAKE-gmake}"
 471 ;;
 472 netbsd)
 473   bsd="yes"
 474   make="${MAKE-gmake}"
 475 ;;
 476 openbsd)
 477   bsd="yes"
 478   make="${MAKE-gmake}"
 479 ;;
 480 darwin)
 481   bsd="yes"
 482   darwin="yes"
 483   # Disable attempts to use ObjectiveC features in os/object.h since they
 484   # won't work when we're compiling with gcc as a C compiler.
 485   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 486 ;;
 487 sunos)
 488   solaris="yes"
 489   make="${MAKE-gmake}"
 490 # needed for CMSG_ macros in sys/socket.h
 491   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 492 # needed for TIOCWIN* defines in termios.h
 493   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 494 ;;
 495 haiku)
 496   pie="no"
 497   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 498 ;;
 499 linux)
 500   linux="yes"
 501 ;;
 502 esac
 503
 504 if test ! -z "$cpu" ; then
 505   # command line argument
 506   :
 507 elif check_define __i386__ ; then
 508   cpu="i386"
 509 elif check_define __x86_64__ ; then
 510   if check_define __ILP32__ ; then
 511     cpu="x32"
 512   else
 513     cpu="x86_64"
 514   fi
 515 elif check_define __sparc__ ; then
 516   if check_define __arch64__ ; then
 517     cpu="sparc64"
 518   else
 519     cpu="sparc"
 520   fi
 521 elif check_define _ARCH_PPC ; then
 522   if check_define _ARCH_PPC64 ; then
 523     if check_define _LITTLE_ENDIAN ; then
 524       cpu="ppc64le"
 525     else
 526       cpu="ppc64"
 527     fi
 528   else
 529     cpu="ppc"
 530   fi
 531 elif check_define __mips__ ; then
 532   cpu="mips"
 533 elif check_define __s390__ ; then
 534   if check_define __s390x__ ; then
 535     cpu="s390x"
 536   else
 537     cpu="s390"
 538   fi
 539 elif check_define __riscv ; then
 540   cpu="riscv"
 541 elif check_define __arm__ ; then
 542   cpu="arm"
 543 elif check_define __aarch64__ ; then
 544   cpu="aarch64"
 545 elif check_define __loongarch64 ; then
 546   cpu="loongarch64"
 547 else
 548   # Using uname is really broken, but it is just a fallback for architectures
 549   # that are going to use TCI anyway
 550   cpu=$(uname -m)
 551   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 552 fi
 553
 554 # Normalise host CPU name and set multilib cflags.  The canonicalization
 555 # isn't really necessary, because the architectures that we check for
 556 # should not hit the 'uname -m' case, but better safe than sorry.
 557 # Note that this case should only have supported host CPUs, not guests.
 558 case "$cpu" in
 559   armv*b|armv*l|arm)
 560     cpu="arm" ;;
 561
 562   i386|i486|i586|i686)
 563     cpu="i386"
 564     CPU_CFLAGS="-m32" ;;
 565   x32)
 566     cpu="x86_64"
 567     CPU_CFLAGS="-mx32" ;;
 568   x86_64|amd64)
 569     cpu="x86_64"
 570     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 571     # If we truly care, we should simply detect this case at
 572     # runtime and generate the fallback to serial emulation.
 573     CPU_CFLAGS="-m64 -mcx16" ;;
 574
 575   mips*)
 576     cpu="mips" ;;
 577
 578   ppc)
 579     CPU_CFLAGS="-m32" ;;
 580   ppc64)
 581     CPU_CFLAGS="-m64 -mbig-endian" ;;
 582   ppc64le)
 583     cpu="ppc64"
 584     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 585
 586   s390)
 587     CPU_CFLAGS="-m31" ;;
 588   s390x)
 589     CPU_CFLAGS="-m64" ;;
 590
 591   sparc|sun4[cdmuv])
 592     cpu="sparc"
 593     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 594   sparc64)
 595     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 596 esac
 597
 598 : ${make=${MAKE-make}}
 599
 600
 601 check_py_version() {
 602     # We require python >= 3.6.
 603     # NB: a True python conditional creates a non-zero return code (Failure)
 604     "$1" -c 'import sys; sys.exit(sys.version_info < (3,6))'
 605 }
 606
 607 python=
 608 first_python=
 609 if test -z "${PYTHON}"; then
 610     explicit_python=no
 611     # A bare 'python' is traditionally python 2.x, but some distros
 612     # have it as python 3.x, so check in both places.
 613     for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7 python3.6; do
 614         if has "$binary"; then
 615             python=$(command -v "$binary")
 616             if check_py_version "$python"; then
 617                 # This one is good.
 618                 first_python=
 619                 break
 620             else
 621                 first_python=$python
 622             fi
 623         fi
 624     done
 625 else
 626     # Same as above, but only check the environment variable.
 627     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 628     python=$(command -v "$PYTHON")
 629     explicit_python=yes
 630     if check_py_version "$python"; then
 631         # This one is good.
 632         first_python=
 633     else
 634         first_python=$first_python
 635     fi
 636 fi
 637
 638 # Check for ancillary tools used in testing
 639 genisoimage=
 640 for binary in genisoimage mkisofs
 641 do
 642     if has $binary
 643     then
 644         genisoimage=$(command -v "$binary")
 645         break
 646     fi
 647 done
 648
 649 # Default objcc to clang if available, otherwise use CC
 650 if has clang; then
 651   objcc=clang
 652 else
 653   objcc="$cc"
 654 fi
 655
 656 if test "$mingw32" = "yes" ; then
 657   EXESUF=".exe"
 658   # MinGW needs -mthreads for TLS and macro _MT.
 659   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 660   prefix="/qemu"
 661   bindir=""
 662   qemu_suffix=""
 663 fi
 664
 665 werror=""
 666
 667 meson_option_build_array() {
 668   printf '['
 669   (if test "$targetos" = windows; then
 670     IFS=\;
 671   else
 672     IFS=:
 673   fi
 674   for e in $1; do
 675     printf '"""'
 676     # backslash escape any '\' and '"' characters
 677     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 678     printf '""",'
 679   done)
 680   printf ']\n'
 681 }
 682
 683 . "$source_path/scripts/meson-buildoptions.sh"
 684
 685 meson_options=
 686 meson_option_add() {
 687   meson_options="$meson_options $(quote_sh "$1")"
 688 }
 689 meson_option_parse() {
 690   meson_options="$meson_options $(_meson_option_parse "$@")"
 691   if test $? -eq 1; then
 692     echo "ERROR: unknown option $1"
 693     echo "Try '$0 --help' for more information"
 694     exit 1
 695   fi
 696 }
 697
 698 for opt do
 699   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 700   case "$opt" in
 701   --help|-h) show_help=yes
 702   ;;
 703   --version|-V) exec cat "$source_path/VERSION"
 704   ;;
 705   --prefix=*) prefix="$optarg"
 706   ;;
 707   --cross-prefix=*)
 708   ;;
 709   --cc=*)
 710   ;;
 711   --host-cc=*) host_cc="$optarg"
 712   ;;
 713   --cxx=*)
 714   ;;
 715   --objcc=*) objcc="$optarg"
 716   ;;
 717   --make=*) make="$optarg"
 718   ;;
 719   --install=*)
 720   ;;
 721   --python=*) python="$optarg" ; explicit_python=yes
 722   ;;
 723   --skip-meson) skip_meson=yes
 724   ;;
 725   --meson=*) meson="$optarg"
 726   ;;
 727   --ninja=*) ninja="$optarg"
 728   ;;
 729   --smbd=*) smbd="$optarg"
 730   ;;
 731   --extra-cflags=*)
 732   ;;
 733   --extra-cxxflags=*)
 734   ;;
 735   --extra-objcflags=*)
 736   ;;
 737   --extra-ldflags=*)
 738   ;;
 739   --cross-cc-*)
 740   ;;
 741   --cross-prefix-*)
 742   ;;
 743   --enable-debug-info) meson_option_add -Ddebug=true
 744   ;;
 745   --disable-debug-info) meson_option_add -Ddebug=false
 746   ;;
 747   --enable-modules)
 748       modules="yes"
 749   ;;
 750   --disable-modules)
 751       modules="no"
 752   ;;
 753   --cpu=*)
 754   ;;
 755   --target-list=*) target_list="$optarg"
 756                    if test "$target_list_exclude"; then
 757                        error_exit "Can't mix --target-list with --target-list-exclude"
 758                    fi
 759   ;;
 760   --target-list-exclude=*) target_list_exclude="$optarg"
 761                    if test "$target_list"; then
 762                        error_exit "Can't mix --target-list-exclude with --target-list"
 763                    fi
 764   ;;
 765   --with-default-devices) meson_option_add -Ddefault_devices=true
 766   ;;
 767   --without-default-devices) meson_option_add -Ddefault_devices=false
 768   ;;
 769   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 770   ;;
 771   --with-devices-*) device_arch=${opt#--with-devices-};
 772                     device_arch=${device_arch%%=*}
 773                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 774                     if test -f "$cf"; then
 775                         device_archs="$device_archs $device_arch"
 776                         eval "devices_${device_arch}=\$optarg"
 777                     else
 778                         error_exit "File $cf does not exist"
 779                     fi
 780   ;;
 781   --without-default-features) # processed above
 782   ;;
 783   --static)
 784     static="yes"
 785     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 786   ;;
 787   --bindir=*) bindir="$optarg"
 788   ;;
 789   --with-suffix=*) qemu_suffix="$optarg"
 790   ;;
 791   --host=*|--build=*|\
 792   --disable-dependency-tracking|\
 793   --sbindir=*|--sharedstatedir=*|\
 794   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 795   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 796     # These switches are silently ignored, for compatibility with
 797     # autoconf-generated configure scripts. This allows QEMU's
 798     # configure to be used by RPM and similar macros that set
 799     # lots of directory switches by default.
 800   ;;
 801   --enable-debug-tcg) debug_tcg="yes"
 802   ;;
 803   --disable-debug-tcg) debug_tcg="no"
 804   ;;
 805   --enable-debug)
 806       # Enable debugging options that aren't excessively noisy
 807       debug_tcg="yes"
 808       meson_option_parse --enable-debug-mutex ""
 809       meson_option_add -Doptimization=0
 810       fortify_source="no"
 811   ;;
 812   --enable-sanitizers) sanitizers="yes"
 813   ;;
 814   --disable-sanitizers) sanitizers="no"
 815   ;;
 816   --enable-tsan) tsan="yes"
 817   ;;
 818   --disable-tsan) tsan="no"
 819   ;;
 820   --disable-tcg) tcg="disabled"
 821                  plugins="no"
 822   ;;
 823   --enable-tcg) tcg="enabled"
 824   ;;
 825   --disable-system) softmmu="no"
 826   ;;
 827   --enable-system) softmmu="yes"
 828   ;;
 829   --disable-user)
 830       linux_user="no" ;
 831       bsd_user="no" ;
 832   ;;
 833   --enable-user) ;;
 834   --disable-linux-user) linux_user="no"
 835   ;;
 836   --enable-linux-user) linux_user="yes"
 837   ;;
 838   --disable-bsd-user) bsd_user="no"
 839   ;;
 840   --enable-bsd-user) bsd_user="yes"
 841   ;;
 842   --enable-pie) pie="yes"
 843   ;;
 844   --disable-pie) pie="no"
 845   ;;
 846   --enable-werror) werror="yes"
 847   ;;
 848   --disable-werror) werror="no"
 849   ;;
 850   --enable-stack-protector) stack_protector="yes"
 851   ;;
 852   --disable-stack-protector) stack_protector="no"
 853   ;;
 854   --enable-safe-stack) safe_stack="yes"
 855   ;;
 856   --disable-safe-stack) safe_stack="no"
 857   ;;
 858   --enable-cfi)
 859       cfi="true";
 860       meson_option_add -Db_lto=true
 861   ;;
 862   --disable-cfi) cfi="false"
 863   ;;
 864   --disable-fdt) fdt="disabled"
 865   ;;
 866   --enable-fdt) fdt="enabled"
 867   ;;
 868   --enable-fdt=git) fdt="internal"
 869   ;;
 870   --enable-fdt=*) fdt="$optarg"
 871   ;;
 872   --with-coroutine=*) coroutine="$optarg"
 873   ;;
 874   --with-git=*) git="$optarg"
 875   ;;
 876   --with-git-submodules=*)
 877       git_submodules_action="$optarg"
 878   ;;
 879   --enable-plugins) if test "$mingw32" = "yes"; then
 880                         error_exit "TCG plugins not currently supported on Windows platforms"
 881                     else
 882                         plugins="yes"
 883                     fi
 884   ;;
 885   --disable-plugins) plugins="no"
 886   ;;
 887   --enable-containers) use_containers="yes"
 888   ;;
 889   --disable-containers) use_containers="no"
 890   ;;
 891   --gdb=*) gdb_bin="$optarg"
 892   ;;
 893   --enable-vfio-user-server) vfio_user_server="enabled"
 894   ;;
 895   --disable-vfio-user-server) vfio_user_server="disabled"
 896   ;;
 897   # everything else has the same name in configure and meson
 898   --*) meson_option_parse "$opt" "$optarg"
 899   ;;
 900   esac
 901 done
 902
 903 # test for any invalid configuration combinations
 904 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 905     error_exit "Can't enable plugins on non-TCG builds"
 906 fi
 907
 908 case $git_submodules_action in
 909     update|validate)
 910         if test ! -e "$source_path/.git"; then
 911             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 912             exit 1
 913         fi
 914     ;;
 915     ignore)
 916         if ! test -f "$source_path/ui/keycodemapdb/README"
 917         then
 918             echo
 919             echo "ERROR: missing GIT submodules"
 920             echo
 921             if test -e "$source_path/.git"; then
 922                 echo "--with-git-submodules=ignore specified but submodules were not"
 923                 echo "checked out.  Please initialize and update submodules."
 924             else
 925                 echo "This is not a GIT checkout but module content appears to"
 926                 echo "be missing. Do not use 'git archive' or GitHub download links"
 927                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 928                 echo "supported with source archives linked from:"
 929                 echo
 930                 echo "  https://www.qemu.org/download/#source"
 931                 echo
 932                 echo "Developers working with GIT can use scripts/archive-source.sh"
 933                 echo "if they need to create valid source archives."
 934             fi
 935             echo
 936             exit 1
 937         fi
 938     ;;
 939     *)
 940         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 941         exit 1
 942     ;;
 943 esac
 944
 945 default_target_list=""
 946 mak_wilds=""
 947
 948 if [ "$linux_user" != no ]; then
 949     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 950         linux_user=yes
 951     elif [ "$linux_user" = yes ]; then
 952         error_exit "linux-user not supported on this architecture"
 953     fi
 954 fi
 955 if [ "$bsd_user" != no ]; then
 956     if [ "$bsd_user" = "" ]; then
 957         test $targetos = freebsd && bsd_user=yes
 958     fi
 959     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 960         error_exit "bsd-user not supported on this host OS"
 961     fi
 962 fi
 963 if [ "$softmmu" = "yes" ]; then
 964     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 965 fi
 966 if [ "$linux_user" = "yes" ]; then
 967     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 968 fi
 969 if [ "$bsd_user" = "yes" ]; then
 970     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 971 fi
 972
 973 for config in $mak_wilds; do
 974     target="$(basename "$config" .mak)"
 975     if echo "$target_list_exclude" | grep -vq "$target"; then
 976         default_target_list="${default_target_list} $target"
 977     fi
 978 done
 979
 980 if test x"$show_help" = x"yes" ; then
 981 cat << EOF
 982
 983 Usage: configure [options]
 984 Options: [defaults in brackets after descriptions]
 985
 986 Standard options:
 987   --help                   print this message
 988   --prefix=PREFIX          install in PREFIX [$prefix]
 989   --target-list=LIST       set target list (default: build all)
 990 $(echo Available targets: $default_target_list | \
 991   fold -s -w 53 | sed -e 's/^/                           /')
 992   --target-list-exclude=LIST exclude a set of targets from the default target-list
 993
 994 Advanced options (experts only):
 995   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 996   --cc=CC                  use C compiler CC [$cc]
 997   --host-cc=CC             use C compiler CC [$host_cc] for code run at
 998                            build time
 999   --cxx=CXX                use C++ compiler CXX [$cxx]
1000   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1001   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1002   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1003   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1004   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1005   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1006   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1007   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1008   --make=MAKE              use specified make [$make]
1009   --python=PYTHON          use specified python [$python]
1010   --meson=MESON            use specified meson [$meson]
1011   --ninja=NINJA            use specified ninja [$ninja]
1012   --smbd=SMBD              use specified smbd [$smbd]
1013   --with-git=GIT           use specified git [$git]
1014   --with-git-submodules=update   update git submodules (default if .git dir exists)
1015   --with-git-submodules=validate fail if git submodules are not up to date
1016   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1017   --static                 enable static build [$static]
1018   --bindir=PATH            install binaries in PATH
1019   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1020   --without-default-features default all --enable-* options to "disabled"
1021   --without-default-devices  do not include any device that is not needed to
1022                            start the emulator (only use if you are including
1023                            desired devices in configs/devices/)
1024   --with-devices-ARCH=NAME override default configs/devices
1025   --enable-debug           enable common debug build options
1026   --enable-sanitizers      enable default sanitizers
1027   --enable-tsan            enable thread sanitizer
1028   --disable-werror         disable compilation abort on warning
1029   --disable-stack-protector disable compiler-provided stack protection
1030   --cpu=CPU                Build for host CPU [$cpu]
1031   --with-coroutine=BACKEND coroutine backend. Supported options:
1032                            ucontext, sigaltstack, windows
1033   --enable-plugins
1034                            enable plugins via shared library loading
1035   --disable-containers     don't use containers for cross-building
1036   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1037 EOF
1038   meson_options_help
1039 cat << EOF
1040   system          all system emulation targets
1041   user            supported user emulation targets
1042   linux-user      all linux usermode emulation targets
1043   bsd-user        all BSD usermode emulation targets
1044   pie             Position Independent Executables
1045   modules         modules support (non-Windows)
1046   debug-tcg       TCG debugging (default is disabled)
1047   debug-info      debugging information
1048   safe-stack      SafeStack Stack Smash Protection. Depends on
1049                   clang/llvm and requires coroutine backend ucontext.
1050
1051 NOTE: The object files are built at the place where configure is launched
1052 EOF
1053 exit 0
1054 fi
1055
1056 # Remove old dependency files to make sure that they get properly regenerated
1057 rm -f ./*/config-devices.mak.d
1058
1059 if test -z "$python"
1060 then
1061     # If first_python is set, there was a binary somewhere even though
1062     # it was not suitable.  Use it for the error message.
1063     if test -n "$first_python"; then
1064         error_exit "Cannot use '$first_python', Python >= 3.6 is required." \
1065             "Use --python=/path/to/python to specify a supported Python."
1066     else
1067         error_exit "Python not found. Use --python=/path/to/python"
1068     fi
1069 fi
1070
1071 if ! has "$make"
1072 then
1073     error_exit "GNU make ($make) not found"
1074 fi
1075
1076 if ! check_py_version "$python"; then
1077   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1078       "Use --python=/path/to/python to specify a supported Python."
1079 fi
1080
1081 # Resolve PATH + suppress writing compiled files
1082 python="$(command -v "$python") -B"
1083
1084 has_meson() {
1085   local python_dir=$(dirname "$python")
1086   # PEP405: pyvenv.cfg is either adjacent to the Python executable
1087   # or one directory above
1088   if test -f $python_dir/pyvenv.cfg || test -f $python_dir/../pyvenv.cfg; then
1089     # Ensure that Meson and Python come from the same virtual environment
1090     test -x "$python_dir/meson" &&
1091       test "$(command -v meson)" -ef "$python_dir/meson"
1092   else
1093     has meson
1094   fi
1095 }
1096
1097 if test -z "$meson"; then
1098     if test "$explicit_python" = no && has_meson && version_ge "$(meson --version)" 0.61.5; then
1099         meson=meson
1100     elif test "$git_submodules_action" != 'ignore' ; then
1101         meson=git
1102     elif test -e "${source_path}/meson/meson.py" ; then
1103         meson=internal
1104     else
1105         if test "$explicit_python" = yes; then
1106             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1107         else
1108             error_exit "Meson not found.  Use --meson=/path/to/meson"
1109         fi
1110     fi
1111 else
1112     # Meson uses its own Python interpreter to invoke other Python scripts,
1113     # but the user wants to use the one they specified with --python.
1114     #
1115     # We do not want to override the distro Python interpreter (and sometimes
1116     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1117     # just require --meson=git|internal together with --python.
1118     if test "$explicit_python" = yes; then
1119         case "$meson" in
1120             git | internal) ;;
1121             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1122         esac
1123     fi
1124 fi
1125
1126 if test "$meson" = git; then
1127     git_submodules="${git_submodules} meson"
1128 fi
1129
1130 case "$meson" in
1131     git | internal)
1132         meson="$python ${source_path}/meson/meson.py"
1133         ;;
1134     *) meson=$(command -v "$meson") ;;
1135 esac
1136
1137 # Probe for ninja
1138
1139 if test -z "$ninja"; then
1140     for c in ninja ninja-build samu; do
1141         if has $c; then
1142             ninja=$(command -v "$c")
1143             break
1144         fi
1145     done
1146     if test -z "$ninja"; then
1147       error_exit "Cannot find Ninja"
1148     fi
1149 fi
1150
1151 # Check that the C compiler works. Doing this here before testing
1152 # the host CPU ensures that we had a valid CC to autodetect the
1153 # $cpu var (and we should bail right here if that's not the case).
1154 # It also allows the help message to be printed without a CC.
1155 write_c_skeleton;
1156 if compile_object ; then
1157   : C compiler works ok
1158 else
1159     error_exit "\"$cc\" either does not exist or does not work"
1160 fi
1161 if ! compile_prog ; then
1162     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1163 fi
1164
1165 # Consult white-list to determine whether to enable werror
1166 # by default.  Only enable by default for git builds
1167 if test -z "$werror" ; then
1168     if test "$git_submodules_action" != "ignore" && \
1169         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1170         werror="yes"
1171     else
1172         werror="no"
1173     fi
1174 fi
1175
1176 if test "$targetos" = "bogus"; then
1177     # Now that we know that we're not printing the help and that
1178     # the compiler works (so the results of the check_defines we used
1179     # to identify the OS are reliable), if we didn't recognize the
1180     # host OS we should stop now.
1181     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1182 fi
1183
1184 # Check whether the compiler matches our minimum requirements:
1185 cat > $TMPC << EOF
1186 #if defined(__clang_major__) && defined(__clang_minor__)
1187 # ifdef __apple_build_version__
1188 #  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1189 #   error You need at least XCode Clang v12.0 to compile QEMU
1190 #  endif
1191 # else
1192 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1193 #   error You need at least Clang v10.0 to compile QEMU
1194 #  endif
1195 # endif
1196 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1197 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1198 #  error You need at least GCC v7.4.0 to compile QEMU
1199 # endif
1200 #else
1201 # error You either need GCC or Clang to compiler QEMU
1202 #endif
1203 int main (void) { return 0; }
1204 EOF
1205 if ! compile_prog "" "" ; then
1206     error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1207 fi
1208
1209 # Accumulate -Wfoo and -Wno-bar separately.
1210 # We will list all of the enable flags first, and the disable flags second.
1211 # Note that we do not add -Werror, because that would enable it for all
1212 # configure tests. If a configure test failed due to -Werror this would
1213 # just silently disable some features, so it's too error prone.
1214
1215 warn_flags=
1216 add_to warn_flags -Wundef
1217 add_to warn_flags -Wwrite-strings
1218 add_to warn_flags -Wmissing-prototypes
1219 add_to warn_flags -Wstrict-prototypes
1220 add_to warn_flags -Wredundant-decls
1221 add_to warn_flags -Wold-style-declaration
1222 add_to warn_flags -Wold-style-definition
1223 add_to warn_flags -Wtype-limits
1224 add_to warn_flags -Wformat-security
1225 add_to warn_flags -Wformat-y2k
1226 add_to warn_flags -Winit-self
1227 add_to warn_flags -Wignored-qualifiers
1228 add_to warn_flags -Wempty-body
1229 add_to warn_flags -Wnested-externs
1230 add_to warn_flags -Wendif-labels
1231 add_to warn_flags -Wexpansion-to-defined
1232 add_to warn_flags -Wimplicit-fallthrough=2
1233 add_to warn_flags -Wmissing-format-attribute
1234
1235 if test "$targetos" != "darwin"; then
1236     add_to warn_flags -Wthread-safety
1237 fi
1238
1239 nowarn_flags=
1240 add_to nowarn_flags -Wno-initializer-overrides
1241 add_to nowarn_flags -Wno-missing-include-dirs
1242 add_to nowarn_flags -Wno-shift-negative-value
1243 add_to nowarn_flags -Wno-string-plus-int
1244 add_to nowarn_flags -Wno-typedef-redefinition
1245 add_to nowarn_flags -Wno-tautological-type-limit-compare
1246 add_to nowarn_flags -Wno-psabi
1247 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1248
1249 gcc_flags="$warn_flags $nowarn_flags"
1250
1251 cc_has_warning_flag() {
1252     write_c_skeleton;
1253
1254     # Use the positive sense of the flag when testing for -Wno-wombat
1255     # support (gcc will happily accept the -Wno- form of unknown
1256     # warning options).
1257     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1258     compile_prog "-Werror $optflag" ""
1259 }
1260
1261 objcc_has_warning_flag() {
1262     cat > $TMPM <<EOF
1263 int main(void) { return 0; }
1264 EOF
1265
1266     # Use the positive sense of the flag when testing for -Wno-wombat
1267     # support (gcc will happily accept the -Wno- form of unknown
1268     # warning options).
1269     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1270     do_objc -Werror $optflag \
1271       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1272       -o $TMPE $TMPM $QEMU_LDFLAGS
1273 }
1274
1275 for flag in $gcc_flags; do
1276     if cc_has_warning_flag $flag ; then
1277         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1278     fi
1279     if objcc_has_warning_flag $flag ; then
1280         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1281     fi
1282 done
1283
1284 if test "$stack_protector" != "no"; then
1285   cat > $TMPC << EOF
1286 int main(int argc, char *argv[])
1287 {
1288     char arr[64], *p = arr, *c = argv[argc - 1];
1289     while (*c) {
1290         *p++ = *c++;
1291     }
1292     return 0;
1293 }
1294 EOF
1295   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1296   sp_on=0
1297   for flag in $gcc_flags; do
1298     # We need to check both a compile and a link, since some compiler
1299     # setups fail only on a .c->.o compile and some only at link time
1300     if compile_object "-Werror $flag" &&
1301        compile_prog "-Werror $flag" ""; then
1302       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1303       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1304       sp_on=1
1305       break
1306     fi
1307   done
1308   if test "$stack_protector" = yes; then
1309     if test $sp_on = 0; then
1310       error_exit "Stack protector not supported"
1311     fi
1312   fi
1313 fi
1314
1315 # Our module code doesn't support Windows
1316 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1317   error_exit "Modules are not available for Windows"
1318 fi
1319
1320 # Static linking is not possible with plugins, modules or PIE
1321 if test "$static" = "yes" ; then
1322   if test "$modules" = "yes" ; then
1323     error_exit "static and modules are mutually incompatible"
1324   fi
1325   if test "$plugins" = "yes"; then
1326     error_exit "static and plugins are mutually incompatible"
1327   else
1328     plugins="no"
1329   fi
1330 fi
1331 test "$plugins" = "" && plugins=yes
1332
1333 cat > $TMPC << EOF
1334
1335 #ifdef __linux__
1336 #  define THREAD __thread
1337 #else
1338 #  define THREAD
1339 #endif
1340 static THREAD int tls_var;
1341 int main(void) { return tls_var; }
1342 EOF
1343
1344 # Meson currently only handles pie as a boolean for now so if we have
1345 # explicitly disabled PIE we need to extend our cflags because it wont.
1346 if test "$static" = "yes"; then
1347   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1348     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1349     pie="yes"
1350   elif test "$pie" = "yes"; then
1351     error_exit "-static-pie not available due to missing toolchain support"
1352   else
1353     pie="no"
1354     QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
1355   fi
1356 elif test "$pie" = "no"; then
1357   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1358     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1359     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1360     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1361   fi
1362 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1363   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1364   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1365   pie="yes"
1366 elif test "$pie" = "yes"; then
1367   error_exit "PIE not available due to missing toolchain support"
1368 else
1369   echo "Disabling PIE due to missing toolchain support"
1370   pie="no"
1371 fi
1372
1373 ##########################################
1374 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1375 # use i686 as default anyway, but for those that don't, an explicit
1376 # specification is necessary
1377
1378 if test "$cpu" = "i386"; then
1379   cat > $TMPC << EOF
1380 static int sfaa(int *ptr)
1381 {
1382   return __sync_fetch_and_and(ptr, 0);
1383 }
1384
1385 int main(void)
1386 {
1387   int val = 42;
1388   val = __sync_val_compare_and_swap(&val, 0, 1);
1389   sfaa(&val);
1390   return val;
1391 }
1392 EOF
1393   if ! compile_prog "" "" ; then
1394     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1395   fi
1396 fi
1397
1398 if test -z "${target_list+xxx}" ; then
1399     default_targets=yes
1400     for target in $default_target_list; do
1401         target_list="$target_list $target"
1402     done
1403     target_list="${target_list# }"
1404 else
1405     default_targets=no
1406     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1407     for target in $target_list; do
1408         # Check that we recognised the target name; this allows a more
1409         # friendly error message than if we let it fall through.
1410         case " $default_target_list " in
1411             *" $target "*)
1412                 ;;
1413             *)
1414                 error_exit "Unknown target name '$target'"
1415                 ;;
1416         esac
1417     done
1418 fi
1419
1420 # see if system emulation was really requested
1421 case " $target_list " in
1422   *"-softmmu "*) softmmu=yes
1423   ;;
1424   *) softmmu=no
1425   ;;
1426 esac
1427
1428 if test "$tcg" = "auto"; then
1429   if test -z "$target_list"; then
1430     tcg="disabled"
1431   else
1432     tcg="enabled"
1433   fi
1434 fi
1435
1436 if test "$tcg" = "enabled"; then
1437     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1438     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1439 fi
1440
1441 ##########################################
1442 # big/little endian test
1443 cat > $TMPC << EOF
1444 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1445 # error LITTLE
1446 #endif
1447 int main(void) { return 0; }
1448 EOF
1449
1450 if ! compile_prog ; then
1451   bigendian="no"
1452 else
1453   cat > $TMPC << EOF
1454 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1455 # error BIG
1456 #endif
1457 int main(void) { return 0; }
1458 EOF
1459
1460   if ! compile_prog ; then
1461     bigendian="yes"
1462   else
1463     echo big/little test failed
1464     exit 1
1465   fi
1466 fi
1467
1468 ##########################################
1469 # pkg-config probe
1470
1471 if ! has "$pkg_config_exe"; then
1472   error_exit "pkg-config binary '$pkg_config_exe' not found"
1473 fi
1474
1475 ##########################################
1476 # glib support probe
1477
1478 # When bumping glib_req_ver, please check also whether we should increase
1479 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1480 glib_req_ver=2.56
1481 glib_modules=gthread-2.0
1482 if test "$modules" = yes; then
1483     glib_modules="$glib_modules gmodule-export-2.0"
1484 elif test "$plugins" = "yes"; then
1485     glib_modules="$glib_modules gmodule-no-export-2.0"
1486 fi
1487
1488 for i in $glib_modules; do
1489     if $pkg_config --atleast-version=$glib_req_ver $i; then
1490         glib_cflags=$($pkg_config --cflags $i)
1491         glib_libs=$($pkg_config --libs $i)
1492     else
1493         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1494     fi
1495 done
1496
1497 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1498 if test -z "$glib_bindir" ; then
1499         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1500 fi
1501
1502 # This workaround is required due to a bug in pkg-config file for glib as it
1503 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1504
1505 if test "$static" = yes && test "$mingw32" = yes; then
1506     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1507 fi
1508
1509 # Sanity check that the current size_t matches the
1510 # size that glib thinks it should be. This catches
1511 # problems on multi-arch where people try to build
1512 # 32-bit QEMU while pointing at 64-bit glib headers
1513 cat > $TMPC <<EOF
1514 #include <glib.h>
1515 #include <unistd.h>
1516
1517 #define QEMU_BUILD_BUG_ON(x) \
1518   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1519
1520 int main(void) {
1521    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1522    return 0;
1523 }
1524 EOF
1525
1526 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1527     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1528                "You probably need to set PKG_CONFIG_LIBDIR"\
1529                "to point to the right pkg-config files for your"\
1530                "build target"
1531 fi
1532
1533 # Silence clang warnings triggered by glib < 2.57.2
1534 cat > $TMPC << EOF
1535 #include <glib.h>
1536 typedef struct Foo {
1537     int i;
1538 } Foo;
1539 static void foo_free(Foo *f)
1540 {
1541     g_free(f);
1542 }
1543 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1544 int main(void) { return 0; }
1545 EOF
1546 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1547     if cc_has_warning_flag "-Wno-unused-function"; then
1548         glib_cflags="$glib_cflags -Wno-unused-function"
1549         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1550     fi
1551 fi
1552
1553 ##########################################
1554 # fdt probe
1555
1556 case "$fdt" in
1557   auto | enabled | internal)
1558     # Simpler to always update submodule, even if not needed.
1559     git_submodules="${git_submodules} dtc"
1560     ;;
1561 esac
1562
1563 ##########################################
1564 # check and set a backend for coroutine
1565
1566 # We prefer ucontext, but it's not always possible. The fallback
1567 # is sigcontext. On Windows the only valid backend is the Windows
1568 # specific one.
1569
1570 ucontext_works=no
1571 if test "$darwin" != "yes"; then
1572   cat > $TMPC << EOF
1573 #include <ucontext.h>
1574 #ifdef __stub_makecontext
1575 #error Ignoring glibc stub makecontext which will always fail
1576 #endif
1577 int main(void) { makecontext(0, 0, 0); return 0; }
1578 EOF
1579   if compile_prog "" "" ; then
1580     ucontext_works=yes
1581   fi
1582 fi
1583
1584 if test "$coroutine" = ""; then
1585   if test "$mingw32" = "yes"; then
1586     coroutine=win32
1587   elif test "$ucontext_works" = "yes"; then
1588     coroutine=ucontext
1589   else
1590     coroutine=sigaltstack
1591   fi
1592 else
1593   case $coroutine in
1594   windows)
1595     if test "$mingw32" != "yes"; then
1596       error_exit "'windows' coroutine backend only valid for Windows"
1597     fi
1598     # Unfortunately the user visible backend name doesn't match the
1599     # coroutine-*.c filename for this case, so we have to adjust it here.
1600     coroutine=win32
1601     ;;
1602   ucontext)
1603     if test "$ucontext_works" != "yes"; then
1604       error_exit "'ucontext' backend requested but makecontext not available"
1605     fi
1606     ;;
1607   sigaltstack)
1608     if test "$mingw32" = "yes"; then
1609       error_exit "only the 'windows' coroutine backend is valid for Windows"
1610     fi
1611     ;;
1612   *)
1613     error_exit "unknown coroutine backend $coroutine"
1614     ;;
1615   esac
1616 fi
1617
1618 ##################################################
1619 # SafeStack
1620
1621
1622 if test "$safe_stack" = "yes"; then
1623 cat > $TMPC << EOF
1624 int main(void)
1625 {
1626 #if ! __has_feature(safe_stack)
1627 #error SafeStack Disabled
1628 #endif
1629     return 0;
1630 }
1631 EOF
1632   flag="-fsanitize=safe-stack"
1633   # Check that safe-stack is supported and enabled.
1634   if compile_prog "-Werror $flag" "$flag"; then
1635     # Flag needed both at compilation and at linking
1636     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1637     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1638   else
1639     error_exit "SafeStack not supported by your compiler"
1640   fi
1641   if test "$coroutine" != "ucontext"; then
1642     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1643   fi
1644 else
1645 cat > $TMPC << EOF
1646 int main(void)
1647 {
1648 #if defined(__has_feature)
1649 #if __has_feature(safe_stack)
1650 #error SafeStack Enabled
1651 #endif
1652 #endif
1653     return 0;
1654 }
1655 EOF
1656 if test "$safe_stack" = "no"; then
1657   # Make sure that safe-stack is disabled
1658   if ! compile_prog "-Werror" ""; then
1659     # SafeStack was already enabled, try to explicitly remove the feature
1660     flag="-fno-sanitize=safe-stack"
1661     if ! compile_prog "-Werror $flag" "$flag"; then
1662       error_exit "Configure cannot disable SafeStack"
1663     fi
1664     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1665     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1666   fi
1667 else # "$safe_stack" = ""
1668   # Set safe_stack to yes or no based on pre-existing flags
1669   if compile_prog "-Werror" ""; then
1670     safe_stack="no"
1671   else
1672     safe_stack="yes"
1673     if test "$coroutine" != "ucontext"; then
1674       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1675     fi
1676   fi
1677 fi
1678 fi
1679
1680 ########################################
1681 # check if ccache is interfering with
1682 # semantic analysis of macros
1683
1684 unset CCACHE_CPP2
1685 ccache_cpp2=no
1686 cat > $TMPC << EOF
1687 static const int Z = 1;
1688 #define fn() ({ Z; })
1689 #define TAUT(X) ((X) == Z)
1690 #define PAREN(X, Y) (X == Y)
1691 #define ID(X) (X)
1692 int main(void)
1693 {
1694     int x = 0, y = 0;
1695     x = ID(x);
1696     x = fn();
1697     fn();
1698     if (PAREN(x, y)) return 0;
1699     if (TAUT(Z)) return 0;
1700     return 0;
1701 }
1702 EOF
1703
1704 if ! compile_object "-Werror"; then
1705     ccache_cpp2=yes
1706 fi
1707
1708 #################################################
1709 # clang does not support glibc + FORTIFY_SOURCE.
1710
1711 if test "$fortify_source" != "no"; then
1712   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1713     fortify_source="no";
1714   elif test -n "$cxx" && has $cxx &&
1715        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1716     fortify_source="no";
1717   else
1718     fortify_source="yes"
1719   fi
1720 fi
1721
1722 ##########################################
1723 # checks for sanitizers
1724
1725 have_asan=no
1726 have_ubsan=no
1727 have_asan_iface_h=no
1728 have_asan_iface_fiber=no
1729
1730 if test "$sanitizers" = "yes" ; then
1731   write_c_skeleton
1732   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1733       have_asan=yes
1734   fi
1735
1736   # we could use a simple skeleton for flags checks, but this also
1737   # detect the static linking issue of ubsan, see also:
1738   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1739   cat > $TMPC << EOF
1740 #include <stdlib.h>
1741 int main(void) {
1742     void *tmp = malloc(10);
1743     if (tmp != NULL) {
1744         return *(int *)(tmp + 2);
1745     }
1746     return 1;
1747 }
1748 EOF
1749   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1750       have_ubsan=yes
1751   fi
1752
1753   if check_include "sanitizer/asan_interface.h" ; then
1754       have_asan_iface_h=yes
1755   fi
1756
1757   cat > $TMPC << EOF
1758 #include <sanitizer/asan_interface.h>
1759 int main(void) {
1760   __sanitizer_start_switch_fiber(0, 0, 0);
1761   return 0;
1762 }
1763 EOF
1764   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1765       have_asan_iface_fiber=yes
1766   fi
1767 fi
1768
1769 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1770 # keep it separate until that is not the case.
1771 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1772   error_exit "TSAN is not supported with other sanitiziers."
1773 fi
1774 have_tsan=no
1775 have_tsan_iface_fiber=no
1776 if test "$tsan" = "yes" ; then
1777   write_c_skeleton
1778   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1779       have_tsan=yes
1780   fi
1781   cat > $TMPC << EOF
1782 #include <sanitizer/tsan_interface.h>
1783 int main(void) {
1784   __tsan_create_fiber(0);
1785   return 0;
1786 }
1787 EOF
1788   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1789       have_tsan_iface_fiber=yes
1790   fi
1791 fi
1792
1793 ##########################################
1794 # functions to probe cross compilers
1795
1796 container="no"
1797 runc=""
1798 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1799     case $($python "$source_path"/tests/docker/docker.py probe) in
1800         *docker) container=docker ;;
1801         podman) container=podman ;;
1802         no) container=no ;;
1803     esac
1804     if test "$container" != "no"; then
1805         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1806         runc=$($python "$source_path"/tests/docker/docker.py probe)
1807     fi
1808 fi
1809
1810 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1811 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1812 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1813 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1814 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1815 : ${cross_prefix_armeb="$cross_prefix_arm"}
1816 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1817 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1818 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1819 : ${cross_prefix_i386="i686-linux-gnu-"}
1820 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1821 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1822 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1823 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1824 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1825 : ${cross_prefix_mips="mips-linux-gnu-"}
1826 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1827 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1828 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1829 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1830 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1831 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1832 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1833 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1834 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1835 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1836
1837 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1838 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1839 : ${cross_cc_armeb="$cross_cc_arm"}
1840 : ${cross_cc_cflags_armeb="-mbig-endian"}
1841 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1842 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1843 : ${cross_cc_cflags_i386="-m32"}
1844 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1845 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1846 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1847 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1848 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1849 : ${cross_cc_sparc="$cross_cc_sparc64"}
1850 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1851 : ${cross_cc_cflags_x86_64="-m64"}
1852
1853 compute_target_variable() {
1854   eval "$2="
1855   if eval test -n "\"\${cross_prefix_$1}\""; then
1856     if eval has "\"\${cross_prefix_$1}\$3\""; then
1857       eval "$2=\"\${cross_prefix_$1}\$3\""
1858     fi
1859   fi
1860 }
1861
1862 have_target() {
1863   for i; do
1864     case " $target_list " in
1865       *" $i "*) return 0;;
1866       *) ;;
1867     esac
1868   done
1869   return 1
1870 }
1871
1872 # probe_target_compiler TARGET
1873 #
1874 # Look for a compiler for the given target, either native or cross.
1875 # Set variables target_* if a compiler is found, and container_cross_*
1876 # if a Docker-based cross-compiler image is known for the target.
1877 # Set got_cross_cc to yes/no depending on whether a non-container-based
1878 # compiler was found.
1879 #
1880 # If TARGET is a user-mode emulation target, also set build_static to
1881 # "y" if static linking is possible.
1882 #
1883 probe_target_compiler() {
1884   # reset all output variables
1885   got_cross_cc=no
1886   container_image=
1887   container_hosts=
1888   container_cross_cc=
1889   container_cross_ar=
1890   container_cross_as=
1891   container_cross_ld=
1892   container_cross_nm=
1893   container_cross_objcopy=
1894   container_cross_ranlib=
1895   container_cross_strip=
1896
1897   # We shall skip configuring the target compiler if the user didn't
1898   # bother enabling an appropriate guest. This avoids building
1899   # extraneous firmware images and tests.
1900   if test "${target_list#*$1}" = "$1"; then
1901       return 1
1902   fi
1903
1904   target_arch=${1%%-*}
1905   case $target_arch in
1906     aarch64) container_hosts="x86_64 aarch64" ;;
1907     alpha) container_hosts=x86_64 ;;
1908     arm) container_hosts="x86_64 aarch64" ;;
1909     cris) container_hosts=x86_64 ;;
1910     hexagon) container_hosts=x86_64 ;;
1911     hppa) container_hosts=x86_64 ;;
1912     i386) container_hosts=x86_64 ;;
1913     loongarch64) container_hosts=x86_64 ;;
1914     m68k) container_hosts=x86_64 ;;
1915     microblaze) container_hosts=x86_64 ;;
1916     mips64el) container_hosts=x86_64 ;;
1917     mips64) container_hosts=x86_64 ;;
1918     mipsel) container_hosts=x86_64 ;;
1919     mips) container_hosts=x86_64 ;;
1920     nios2) container_hosts=x86_64 ;;
1921     ppc) container_hosts=x86_64 ;;
1922     ppc64|ppc64le) container_hosts=x86_64 ;;
1923     riscv64) container_hosts=x86_64 ;;
1924     s390x) container_hosts=x86_64 ;;
1925     sh4) container_hosts=x86_64 ;;
1926     sparc64) container_hosts=x86_64 ;;
1927     tricore) container_hosts=x86_64 ;;
1928     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1929     xtensa*) container_hosts=x86_64 ;;
1930   esac
1931
1932   for host in $container_hosts; do
1933     test "$container" != no || continue
1934     test "$host" = "$cpu" || continue
1935     case $target_arch in
1936       aarch64)
1937         # We don't have any bigendian build tools so we only use this for AArch64
1938         container_image=debian-arm64-cross
1939         container_cross_prefix=aarch64-linux-gnu-
1940         container_cross_cc=${container_cross_prefix}gcc-10
1941         ;;
1942       alpha)
1943         container_image=debian-alpha-cross
1944         container_cross_prefix=alpha-linux-gnu-
1945         ;;
1946       arm)
1947         # We don't have any bigendian build tools so we only use this for ARM
1948         container_image=debian-armhf-cross
1949         container_cross_prefix=arm-linux-gnueabihf-
1950         ;;
1951       cris)
1952         container_image=fedora-cris-cross
1953         container_cross_prefix=cris-linux-gnu-
1954         ;;
1955       hexagon)
1956         container_image=debian-hexagon-cross
1957         container_cross_prefix=hexagon-unknown-linux-musl-
1958         container_cross_cc=${container_cross_prefix}clang
1959         ;;
1960       hppa)
1961         container_image=debian-hppa-cross
1962         container_cross_prefix=hppa-linux-gnu-
1963         ;;
1964       i386)
1965         container_image=fedora-i386-cross
1966         container_cross_prefix=
1967         ;;
1968       loongarch64)
1969         container_image=debian-loongarch-cross
1970         container_cross_prefix=loongarch64-unknown-linux-gnu-
1971         ;;
1972       m68k)
1973         container_image=debian-m68k-cross
1974         container_cross_prefix=m68k-linux-gnu-
1975         ;;
1976       microblaze)
1977         container_image=debian-microblaze-cross
1978         container_cross_prefix=microblaze-linux-musl-
1979         ;;
1980       mips64el)
1981         container_image=debian-mips64el-cross
1982         container_cross_prefix=mips64el-linux-gnuabi64-
1983         ;;
1984       mips64)
1985         container_image=debian-mips64-cross
1986         container_cross_prefix=mips64-linux-gnuabi64-
1987         ;;
1988       mipsel)
1989         container_image=debian-mipsel-cross
1990         container_cross_prefix=mipsel-linux-gnu-
1991         ;;
1992       mips)
1993         container_image=debian-mips-cross
1994         container_cross_prefix=mips-linux-gnu-
1995         ;;
1996       nios2)
1997         container_image=debian-nios2-cross
1998         container_cross_prefix=nios2-linux-gnu-
1999         ;;
2000       ppc)
2001         container_image=debian-powerpc-test-cross
2002         container_cross_prefix=powerpc-linux-gnu-
2003         container_cross_cc=${container_cross_prefix}gcc-10
2004         ;;
2005       ppc64|ppc64le)
2006         container_image=debian-powerpc-test-cross
2007         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
2008         container_cross_cc=${container_cross_prefix}gcc-10
2009         ;;
2010       riscv64)
2011         container_image=debian-riscv64-test-cross
2012         container_cross_prefix=riscv64-linux-gnu-
2013         ;;
2014       s390x)
2015         container_image=debian-s390x-cross
2016         container_cross_prefix=s390x-linux-gnu-
2017         ;;
2018       sh4)
2019         container_image=debian-sh4-cross
2020         container_cross_prefix=sh4-linux-gnu-
2021         ;;
2022       sparc64)
2023         container_image=debian-sparc64-cross
2024         container_cross_prefix=sparc64-linux-gnu-
2025         ;;
2026       tricore)
2027         container_image=debian-tricore-cross
2028         container_cross_prefix=tricore-
2029         container_cross_as=tricore-as
2030         container_cross_ld=tricore-ld
2031         break
2032         ;;
2033       x86_64)
2034         container_image=debian-amd64-cross
2035         container_cross_prefix=x86_64-linux-gnu-
2036         ;;
2037       xtensa*)
2038         container_hosts=x86_64
2039         container_image=debian-xtensa-cross
2040
2041         # default to the dc232b cpu
2042         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2043         ;;
2044     esac
2045     : ${container_cross_cc:=${container_cross_prefix}gcc}
2046     : ${container_cross_ar:=${container_cross_prefix}ar}
2047     : ${container_cross_as:=${container_cross_prefix}as}
2048     : ${container_cross_ld:=${container_cross_prefix}ld}
2049     : ${container_cross_nm:=${container_cross_prefix}nm}
2050     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2051     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2052     : ${container_cross_strip:=${container_cross_prefix}strip}
2053   done
2054
2055   try=cross
2056   case "$target_arch:$cpu" in
2057     aarch64_be:aarch64 | \
2058     armeb:arm | \
2059     i386:x86_64 | \
2060     mips*:mips64 | \
2061     ppc*:ppc64 | \
2062     sparc:sparc64 | \
2063     "$cpu:$cpu")
2064       try='native cross' ;;
2065   esac
2066   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2067   for thistry in $try; do
2068     case $thistry in
2069     native)
2070       target_cc=$cc
2071       target_ccas=$ccas
2072       target_ar=$ar
2073       target_as=$as
2074       target_ld=$ld
2075       target_nm=$nm
2076       target_objcopy=$objcopy
2077       target_ranlib=$ranlib
2078       target_strip=$strip
2079       ;;
2080     cross)
2081       target_cc=
2082       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2083         if eval has "\"\${cross_cc_$target_arch}\""; then
2084           eval "target_cc=\"\${cross_cc_$target_arch}\""
2085         fi
2086       else
2087         compute_target_variable $target_arch target_cc gcc
2088       fi
2089       target_ccas=$target_cc
2090       compute_target_variable $target_arch target_ar ar
2091       compute_target_variable $target_arch target_as as
2092       compute_target_variable $target_arch target_ld ld
2093       compute_target_variable $target_arch target_nm nm
2094       compute_target_variable $target_arch target_objcopy objcopy
2095       compute_target_variable $target_arch target_ranlib ranlib
2096       compute_target_variable $target_arch target_strip strip
2097       ;;
2098     esac
2099
2100     if test -n "$target_cc"; then
2101       case $target_arch in
2102         i386|x86_64)
2103           if $target_cc --version | grep -qi "clang"; then
2104             continue
2105           fi
2106           ;;
2107       esac
2108     elif test -n "$target_as" && test -n "$target_ld"; then
2109       # Special handling for assembler only targets
2110       case $target in
2111         tricore-softmmu)
2112           build_static=
2113           got_cross_cc=yes
2114           break
2115           ;;
2116         *)
2117           continue
2118           ;;
2119       esac
2120     else
2121       continue
2122     fi
2123
2124     write_c_skeleton
2125     case $1 in
2126       *-softmmu)
2127         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2128           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2129           got_cross_cc=yes
2130           break
2131         fi
2132         ;;
2133       *)
2134         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2135           build_static=y
2136           got_cross_cc=yes
2137           break
2138         fi
2139         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2140           build_static=
2141           got_cross_cc=yes
2142           break
2143         fi
2144         ;;
2145     esac
2146   done
2147   if test $got_cross_cc != yes; then
2148     build_static=
2149     target_cc=
2150     target_ccas=
2151     target_ar=
2152     target_as=
2153     target_ld=
2154     target_nm=
2155     target_objcopy=
2156     target_ranlib=
2157     target_strip=
2158   fi
2159   test -n "$target_cc"
2160 }
2161
2162 write_target_makefile() {
2163   echo "EXTRA_CFLAGS=$target_cflags"
2164   if test -z "$target_cc" && test -z "$target_as"; then
2165     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2166     echo "$1: docker-image-$container_image" >> Makefile.prereqs
2167     if test -n "$container_cross_cc"; then
2168       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2169       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2170     fi
2171     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2172     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2173     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2174     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2175     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2176     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2177     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2178   else
2179     if test -n "$target_cc"; then
2180       echo "CC=$target_cc"
2181       echo "CCAS=$target_ccas"
2182     fi
2183     if test -n "$target_ar"; then
2184       echo "AR=$target_ar"
2185     fi
2186     if test -n "$target_as"; then
2187       echo "AS=$target_as"
2188     fi
2189     if test -n "$target_ld"; then
2190       echo "LD=$target_ld"
2191     fi
2192     if test -n "$target_nm"; then
2193       echo "NM=$target_nm"
2194     fi
2195     if test -n "$target_objcopy"; then
2196       echo "OBJCOPY=$target_objcopy"
2197     fi
2198     if test -n "$target_ranlib"; then
2199       echo "RANLIB=$target_ranlib"
2200     fi
2201     if test -n "$target_strip"; then
2202       echo "STRIP=$target_strip"
2203     fi
2204   fi
2205 }
2206
2207 ##########################################
2208 # check for vfio_user_server
2209
2210 case "$vfio_user_server" in
2211   enabled )
2212     if test "$git_submodules_action" != "ignore"; then
2213       git_submodules="${git_submodules} subprojects/libvfio-user"
2214     fi
2215     ;;
2216 esac
2217
2218 ##########################################
2219 # End of CC checks
2220 # After here, no more $cc or $ld runs
2221
2222 write_c_skeleton
2223
2224 if test "$fortify_source" = "yes" ; then
2225   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2226 fi
2227
2228 if test "$have_asan" = "yes"; then
2229   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2230   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2231   if test "$have_asan_iface_h" = "no" ; then
2232       echo "ASAN build enabled, but ASAN header missing." \
2233            "Without code annotation, the report may be inferior."
2234   elif test "$have_asan_iface_fiber" = "no" ; then
2235       echo "ASAN build enabled, but ASAN header is too old." \
2236            "Without code annotation, the report may be inferior."
2237   fi
2238 fi
2239 if test "$have_tsan" = "yes" ; then
2240   if test "$have_tsan_iface_fiber" = "yes" ; then
2241     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2242     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2243   else
2244     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2245   fi
2246 elif test "$tsan" = "yes" ; then
2247   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2248 fi
2249 if test "$have_ubsan" = "yes"; then
2250   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2251   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2252 fi
2253
2254 #######################################
2255 # cross-compiled firmware targets
2256
2257 # Set up build tree symlinks that point back into the source tree
2258 # (these can be both files and directories).
2259 # Caution: avoid adding files or directories here using wildcards. This
2260 # will result in problems later if a new file matching the wildcard is
2261 # added to the source tree -- nothing will cause configure to be rerun
2262 # so the build tree will be missing the link back to the new file, and
2263 # tests might fail. Prefer to keep the relevant files in their own
2264 # directory and symlink the directory instead.
2265 LINKS="Makefile"
2266 LINKS="$LINKS docs/config"
2267 LINKS="$LINKS pc-bios/optionrom/Makefile"
2268 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2269 LINKS="$LINKS pc-bios/vof/Makefile"
2270 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2271 LINKS="$LINKS tests/avocado tests/data"
2272 LINKS="$LINKS tests/qemu-iotests/check"
2273 LINKS="$LINKS python"
2274 LINKS="$LINKS contrib/plugins/Makefile "
2275 for f in $LINKS ; do
2276     if [ -e "$source_path/$f" ]; then
2277         mkdir -p "$(dirname ./"$f")"
2278         symlink "$source_path/$f" "$f"
2279     fi
2280 done
2281
2282 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2283
2284 # Mac OS X ships with a broken assembler
2285 roms=
2286 if have_target i386-softmmu x86_64-softmmu && \
2287         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2288         test "$targetos" != "haiku" && \
2289         probe_target_compiler i386-softmmu; then
2290     roms="pc-bios/optionrom"
2291     config_mak=pc-bios/optionrom/config.mak
2292     echo "# Automatically generated by configure - do not modify" > $config_mak
2293     echo "TOPSRC_DIR=$source_path" >> $config_mak
2294     write_target_makefile >> $config_mak
2295 fi
2296
2297 if have_target ppc-softmmu ppc64-softmmu && \
2298         probe_target_compiler ppc-softmmu; then
2299     roms="$roms pc-bios/vof"
2300     config_mak=pc-bios/vof/config.mak
2301     echo "# Automatically generated by configure - do not modify" > $config_mak
2302     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2303     write_target_makefile >> $config_mak
2304 fi
2305
2306 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2307 # (which is the lowest architecture level that Clang supports)
2308 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2309   write_c_skeleton
2310   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2311   has_z900=$?
2312   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2313     if [ $has_z900 != 0 ]; then
2314       echo "WARNING: Your compiler does not support the z900!"
2315       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2316     fi
2317     roms="$roms pc-bios/s390-ccw"
2318     config_mak=pc-bios/s390-ccw/config-host.mak
2319     echo "# Automatically generated by configure - do not modify" > $config_mak
2320     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2321     write_target_makefile >> $config_mak
2322     # SLOF is required for building the s390-ccw firmware on s390x,
2323     # since it is using the libnet code from SLOF for network booting.
2324     git_submodules="${git_submodules} roms/SLOF"
2325   fi
2326 fi
2327
2328 #######################################
2329 # generate config-host.mak
2330
2331 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2332     exit 1
2333 fi
2334
2335 config_host_mak="config-host.mak"
2336
2337 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2338 echo >> $config_host_mak
2339
2340 echo all: >> $config_host_mak
2341 echo "GIT=$git" >> $config_host_mak
2342 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2343 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2344
2345 if test "$debug_tcg" = "yes" ; then
2346   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2347 fi
2348 if test "$mingw32" = "yes" ; then
2349   echo "CONFIG_WIN32=y" >> $config_host_mak
2350   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2351   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2352   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2353 else
2354   echo "CONFIG_POSIX=y" >> $config_host_mak
2355 fi
2356
2357 if test "$linux" = "yes" ; then
2358   echo "CONFIG_LINUX=y" >> $config_host_mak
2359 fi
2360
2361 if test "$darwin" = "yes" ; then
2362   echo "CONFIG_DARWIN=y" >> $config_host_mak
2363 fi
2364
2365 if test "$solaris" = "yes" ; then
2366   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2367 fi
2368 if test "$static" = "yes" ; then
2369   echo "CONFIG_STATIC=y" >> $config_host_mak
2370 fi
2371 echo "SRC_PATH=$source_path" >> $config_host_mak
2372 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2373 if test "$modules" = "yes"; then
2374   echo "CONFIG_MODULES=y" >> $config_host_mak
2375 fi
2376
2377 # XXX: suppress that
2378 if [ "$bsd" = "yes" ] ; then
2379   echo "CONFIG_BSD=y" >> $config_host_mak
2380 fi
2381
2382 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2383
2384 if test "$have_asan_iface_fiber" = "yes" ; then
2385     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2386 fi
2387
2388 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2389     echo "CONFIG_TSAN=y" >> $config_host_mak
2390 fi
2391
2392 if test "$plugins" = "yes" ; then
2393     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2394 fi
2395
2396 if test -n "$gdb_bin"; then
2397     gdb_version=$($gdb_bin --version | head -n 1)
2398     if version_ge ${gdb_version##* } 9.1; then
2399         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2400         gdb_arches=$("$source_path/scripts/probe-gdb-support.py" $gdb_bin)
2401     else
2402         gdb_bin=""
2403     fi
2404 fi
2405
2406 if test "$container" != no; then
2407     echo "ENGINE=$container" >> $config_host_mak
2408     echo "RUNC=$runc" >> $config_host_mak
2409 fi
2410 echo "ROMS=$roms" >> $config_host_mak
2411 echo "MAKE=$make" >> $config_host_mak
2412 echo "PYTHON=$python" >> $config_host_mak
2413 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2414 echo "MESON=$meson" >> $config_host_mak
2415 echo "NINJA=$ninja" >> $config_host_mak
2416 echo "CC=$cc" >> $config_host_mak
2417 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2418 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2419 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2420 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2421 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2422 echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak
2423 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2424 echo "EXESUF=$EXESUF" >> $config_host_mak
2425
2426 # use included Linux headers
2427 if test "$linux" = "yes" ; then
2428   mkdir -p linux-headers
2429   case "$cpu" in
2430   i386|x86_64)
2431     linux_arch=x86
2432     ;;
2433   ppc|ppc64)
2434     linux_arch=powerpc
2435     ;;
2436   s390x)
2437     linux_arch=s390
2438     ;;
2439   aarch64)
2440     linux_arch=arm64
2441     ;;
2442   loongarch*)
2443     linux_arch=loongarch
2444     ;;
2445   mips64)
2446     linux_arch=mips
2447     ;;
2448   *)
2449     # For most CPUs the kernel architecture name and QEMU CPU name match.
2450     linux_arch="$cpu"
2451     ;;
2452   esac
2453     # For non-KVM architectures we will not have asm headers
2454     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2455       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2456     fi
2457 fi
2458
2459 for target in $target_list; do
2460     target_dir="$target"
2461     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2462     mkdir -p "$target_dir"
2463     case $target in
2464         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2465         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2466     esac
2467 done
2468
2469 if test "$default_targets" = "yes"; then
2470   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2471 fi
2472
2473 if test "$ccache_cpp2" = "yes"; then
2474   echo "export CCACHE_CPP2=y" >> $config_host_mak
2475 fi
2476
2477 if test "$safe_stack" = "yes"; then
2478   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2479 fi
2480
2481 # tests/tcg configuration
2482 (config_host_mak=tests/tcg/config-host.mak
2483 mkdir -p tests/tcg
2484 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2485 echo "SRC_PATH=$source_path" >> $config_host_mak
2486 echo "HOST_CC=$host_cc" >> $config_host_mak
2487
2488 # versioned checked in the main config_host.mak above
2489 if test -n "$gdb_bin"; then
2490     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2491 fi
2492 if test "$plugins" = "yes" ; then
2493     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2494 fi
2495
2496 tcg_tests_targets=
2497 for target in $target_list; do
2498   arch=${target%%-*}
2499
2500   case $target in
2501     xtensa*-linux-user)
2502       # the toolchain is not complete with headers, only build softmmu tests
2503       continue
2504       ;;
2505     *-softmmu)
2506       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2507       qemu="qemu-system-$arch"
2508       ;;
2509     *-linux-user|*-bsd-user)
2510       qemu="qemu-$arch"
2511       ;;
2512   esac
2513
2514   if probe_target_compiler $target || test -n "$container_image"; then
2515       test -n "$container_image" && build_static=y
2516       mkdir -p "tests/tcg/$target"
2517       config_target_mak=tests/tcg/$target/config-target.mak
2518       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2519       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2520       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2521       echo "TARGET=$target" >> "$config_target_mak"
2522       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2523       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2524       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2525
2526       # will GDB work with these binaries?
2527       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
2528           echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
2529       fi
2530
2531       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2532       tcg_tests_targets="$tcg_tests_targets $target"
2533   fi
2534 done
2535
2536 if test "$tcg" = "enabled"; then
2537     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2538 fi
2539 )
2540
2541 if test "$skip_meson" = no; then
2542   cross="config-meson.cross.new"
2543   meson_quote() {
2544     test $# = 0 && return
2545     echo "'$(echo $* | sed "s/ /','/g")'"
2546   }
2547
2548   echo "# Automatically generated by configure - do not modify" > $cross
2549   echo "[properties]" >> $cross
2550
2551   # unroll any custom device configs
2552   for a in $device_archs; do
2553       eval "c=\$devices_${a}"
2554       echo "${a}-softmmu = '$c'" >> $cross
2555   done
2556
2557   echo "[built-in options]" >> $cross
2558   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2559   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2560   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2561   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2562   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2563   echo "[binaries]" >> $cross
2564   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2565   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2566   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2567   echo "ar = [$(meson_quote $ar)]" >> $cross
2568   echo "nm = [$(meson_quote $nm)]" >> $cross
2569   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2570   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2571   if has $sdl2_config; then
2572     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2573   fi
2574   echo "strip = [$(meson_quote $strip)]" >> $cross
2575   echo "widl = [$(meson_quote $widl)]" >> $cross
2576   echo "windres = [$(meson_quote $windres)]" >> $cross
2577   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2578   if test "$cross_compile" = "yes"; then
2579     cross_arg="--cross-file config-meson.cross"
2580     echo "[host_machine]" >> $cross
2581     echo "system = '$targetos'" >> $cross
2582     case "$cpu" in
2583         i386)
2584             echo "cpu_family = 'x86'" >> $cross
2585             ;;
2586         *)
2587             echo "cpu_family = '$cpu'" >> $cross
2588             ;;
2589     esac
2590     echo "cpu = '$cpu'" >> $cross
2591     if test "$bigendian" = "yes" ; then
2592         echo "endian = 'big'" >> $cross
2593     else
2594         echo "endian = 'little'" >> $cross
2595     fi
2596   else
2597     cross_arg="--native-file config-meson.cross"
2598   fi
2599   mv $cross config-meson.cross
2600
2601   rm -rf meson-private meson-info meson-logs
2602
2603   # Built-in options
2604   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2605   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2606   test "$pie" = no && meson_option_add -Db_pie=false
2607   test "$werror" = yes && meson_option_add -Dwerror=true
2608
2609   # QEMU options
2610   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2611   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2612   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2613   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2614   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2615   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2616   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2617   run_meson() {
2618     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2619   }
2620   eval run_meson $meson_options
2621   if test "$?" -ne 0 ; then
2622       error_exit "meson setup failed"
2623   fi
2624 fi
2625
2626 # Save the configure command line for later reuse.
2627 cat <<EOD >config.status
2628 #!/bin/sh
2629 # Generated by configure.
2630 # Run this file to recreate the current configuration.
2631 # Compiler output produced by configure, useful for debugging
2632 # configure, is in config.log if it exists.
2633 EOD
2634
2635 preserve_env() {
2636     envname=$1
2637
2638     eval envval=\$$envname
2639
2640     if test -n "$envval"
2641     then
2642         echo "$envname='$envval'" >> config.status
2643         echo "export $envname" >> config.status
2644     else
2645         echo "unset $envname" >> config.status
2646     fi
2647 }
2648
2649 # Preserve various env variables that influence what
2650 # features/build target configure will detect
2651 preserve_env AR
2652 preserve_env AS
2653 preserve_env CC
2654 preserve_env CFLAGS
2655 preserve_env CXX
2656 preserve_env CXXFLAGS
2657 preserve_env LD
2658 preserve_env LDFLAGS
2659 preserve_env LD_LIBRARY_PATH
2660 preserve_env MAKE
2661 preserve_env NM
2662 preserve_env OBJCFLAGS
2663 preserve_env OBJCOPY
2664 preserve_env PATH
2665 preserve_env PKG_CONFIG
2666 preserve_env PKG_CONFIG_LIBDIR
2667 preserve_env PKG_CONFIG_PATH
2668 preserve_env PYTHON
2669 preserve_env QEMU_GA_MANUFACTURER
2670 preserve_env QEMU_GA_DISTRO
2671 preserve_env QEMU_GA_VERSION
2672 preserve_env SDL2_CONFIG
2673 preserve_env SMBD
2674 preserve_env STRIP
2675 preserve_env WIDL
2676 preserve_env WINDRES
2677 preserve_env WINDMC
2678
2679 printf "exec" >>config.status
2680 for i in "$0" "$@"; do
2681   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2682 done
2683 echo ' "$@"' >>config.status
2684 chmod +x config.status
2685
2686 rm -r "$TMPDIR1"