configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     mkdir build
  35     touch $MARKER
  36
  37     cat > GNUmakefile <<'EOF'
  38 # This file is auto-generated by configure to support in-source tree
  39 # 'make' command invocation
  40
  41 ifeq ($(MAKECMDGOALS),)
  42 recurse: all
  43 endif
  44
  45 .NOTPARALLEL: %
  46 %: force
  47         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  48         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  49         @if test "$(MAKECMDGOALS)" = "distclean" && \
  50             test -e build/auto-created-by-configure ; \
  51         then \
  52             rm -rf build GNUmakefile ; \
  53         fi
  54 force: ;
  55 .PHONY: force
  56 GNUmakefile: ;
  57
  58 EOF
  59     cd build
  60     exec "$source_path/configure" "$@"
  61 fi
  62
  63 # Temporary directory used for files created while
  64 # configure runs. Since it is in the build directory
  65 # we can safely blow away any previous version of it
  66 # (and we need not jump through hoops to try to delete
  67 # it when configure exits.)
  68 TMPDIR1="config-temp"
  69 rm -rf "${TMPDIR1}"
  70 if ! mkdir -p "${TMPDIR1}"; then
  71     echo "ERROR: failed to create temporary directory"
  72     exit 1
  73 fi
  74
  75 TMPB="qemu-conf"
  76 TMPC="${TMPDIR1}/${TMPB}.c"
  77 TMPO="${TMPDIR1}/${TMPB}.o"
  78 TMPM="${TMPDIR1}/${TMPB}.m"
  79 TMPE="${TMPDIR1}/${TMPB}.exe"
  80
  81 rm -f config.log
  82
  83 # Print a helpful header at the top of config.log
  84 echo "# QEMU configure log $(date)" >> config.log
  85 printf "# Configured with:" >> config.log
  86 # repeat the invocation to log and stdout for CI
  87 invoke=$(printf " '%s'" "$0" "$@")
  88 test -n "$GITLAB_CI" && echo "configuring with: $invoke"
  89 { echo "$invoke"; echo; echo "#"; } >> config.log
  90
  91 quote_sh() {
  92     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  93 }
  94
  95 print_error() {
  96     (echo
  97     echo "ERROR: $1"
  98     while test -n "$2"; do
  99         echo "       $2"
 100         shift
 101     done
 102     echo) >&2
 103 }
 104
 105 error_exit() {
 106     print_error "$@"
 107     exit 1
 108 }
 109
 110 do_compiler() {
 111   # Run the compiler, capturing its output to the log. First argument
 112   # is compiler binary to execute.
 113   compiler="$1"
 114   shift
 115   if test -n "$BASH_VERSION"; then eval '
 116       echo >>config.log "
 117 funcs: ${FUNCNAME[*]}
 118 lines: ${BASH_LINENO[*]}"
 119   '; fi
 120   echo $compiler "$@" >> config.log
 121   $compiler "$@" >> config.log 2>&1 || return $?
 122 }
 123
 124 do_compiler_werror() {
 125     # Run the compiler, capturing its output to the log. First argument
 126     # is compiler binary to execute.
 127     compiler="$1"
 128     shift
 129     if test -n "$BASH_VERSION"; then eval '
 130         echo >>config.log "
 131 funcs: ${FUNCNAME[*]}
 132 lines: ${BASH_LINENO[*]}"
 133     '; fi
 134     echo $compiler "$@" >> config.log
 135     $compiler "$@" >> config.log 2>&1 || return $?
 136     # Test passed. If this is an --enable-werror build, rerun
 137     # the test with -Werror and bail out if it fails. This
 138     # makes warning-generating-errors in configure test code
 139     # obvious to developers.
 140     if test "$werror" != "yes"; then
 141         return 0
 142     fi
 143     # Don't bother rerunning the compile if we were already using -Werror
 144     case "$*" in
 145         *-Werror*)
 146            return 0
 147         ;;
 148     esac
 149     echo $compiler -Werror "$@" >> config.log
 150     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 151     error_exit "configure test passed without -Werror but failed with -Werror." \
 152         "This is probably a bug in the configure script. The failing command" \
 153         "will be at the bottom of config.log." \
 154         "You can run configure with --disable-werror to bypass this check."
 155 }
 156
 157 do_cc() {
 158     do_compiler_werror "$cc" $CPU_CFLAGS "$@"
 159 }
 160
 161 do_objc() {
 162     do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
 163 }
 164
 165 # Append $2 to the variable named $1, with space separation
 166 add_to() {
 167     eval $1=\${$1:+\"\$$1 \"}\$2
 168 }
 169
 170 compile_object() {
 171   local_cflags="$1"
 172   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 173 }
 174
 175 compile_prog() {
 176   local_cflags="$1"
 177   local_ldflags="$2"
 178   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 179       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 180 }
 181
 182 # symbolically link $1 to $2.  Portable version of "ln -sf".
 183 symlink() {
 184   rm -rf "$2"
 185   mkdir -p "$(dirname "$2")"
 186   ln -s "$1" "$2"
 187 }
 188
 189 # check whether a command is available to this shell (may be either an
 190 # executable or a builtin)
 191 has() {
 192     type "$1" >/dev/null 2>&1
 193 }
 194
 195 version_ge () {
 196     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 197     local_ver2=$(echo "$2" | tr . ' ')
 198     while true; do
 199         set x $local_ver1
 200         local_first=${2-0}
 201         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 202         shift ${2:+2}
 203         local_ver1=$*
 204         set x $local_ver2
 205         # the second argument finished, the first must be greater or equal
 206         test $# = 1 && return 0
 207         test $local_first -lt $2 && return 1
 208         test $local_first -gt $2 && return 0
 209         shift ${2:+2}
 210         local_ver2=$*
 211     done
 212 }
 213
 214 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 215 then
 216   error_exit "main directory cannot contain spaces nor colons"
 217 fi
 218
 219 # default parameters
 220 cpu=""
 221 static="no"
 222 cross_compile="no"
 223 cross_prefix=""
 224 host_cc="cc"
 225 stack_protector=""
 226 safe_stack=""
 227 use_containers="yes"
 228 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 229
 230 if test -e "$source_path/.git"
 231 then
 232     git_submodules_action="update"
 233 else
 234     git_submodules_action="ignore"
 235 fi
 236
 237 git_submodules="ui/keycodemapdb"
 238 git="git"
 239
 240 # Don't accept a target_list environment variable.
 241 unset target_list
 242 unset target_list_exclude
 243
 244 # Default value for a variable defining feature "foo".
 245 #  * foo="no"  feature will only be used if --enable-foo arg is given
 246 #  * foo=""    feature will be searched for, and if found, will be used
 247 #              unless --disable-foo is given
 248 #  * foo="yes" this value will only be set by --enable-foo flag.
 249 #              feature will searched for,
 250 #              if not found, configure exits with error
 251 #
 252 # Always add --enable-foo and --disable-foo command line args.
 253 # Distributions want to ensure that several features are compiled in, and it
 254 # is impossible without a --enable-foo that exits if a feature is not found.
 255
 256 default_feature=""
 257 # parse CC options second
 258 for opt do
 259   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 260   case "$opt" in
 261       --without-default-features)
 262           default_feature="no"
 263   ;;
 264   esac
 265 done
 266
 267 EXTRA_CFLAGS=""
 268 EXTRA_CXXFLAGS=""
 269 EXTRA_OBJCFLAGS=""
 270 EXTRA_LDFLAGS=""
 271
 272 debug_tcg="no"
 273 sanitizers="no"
 274 tsan="no"
 275 fortify_source="yes"
 276 EXESUF=""
 277 modules="no"
 278 prefix="/usr/local"
 279 qemu_suffix="qemu"
 280 softmmu="yes"
 281 linux_user=""
 282 bsd_user=""
 283 pie=""
 284 coroutine=""
 285 plugins="$default_feature"
 286 meson=""
 287 ninja=""
 288 bindir="bin"
 289 skip_meson=no
 290 vfio_user_server="disabled"
 291
 292 # The following Meson options are handled manually (still they
 293 # are included in the automatically generated help message)
 294
 295 # 1. Track which submodules are needed
 296 fdt="auto"
 297
 298 # 2. Automatically enable/disable other options
 299 tcg="auto"
 300 cfi="false"
 301
 302 # parse CC options second
 303 for opt do
 304   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 305   case "$opt" in
 306   --cross-prefix=*) cross_prefix="$optarg"
 307                     cross_compile="yes"
 308   ;;
 309   --cc=*) CC="$optarg"
 310   ;;
 311   --cxx=*) CXX="$optarg"
 312   ;;
 313   --cpu=*) cpu="$optarg"
 314   ;;
 315   --extra-cflags=*)
 316     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 317     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 318     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 319     ;;
 320   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 321   ;;
 322   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 323   ;;
 324   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 325   ;;
 326   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 327   ;;
 328   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 329                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 330   ;;
 331   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 332                 eval "cross_cc_${cc_arch}=\$optarg"
 333   ;;
 334   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 335   ;;
 336   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 337                     eval "cross_prefix_${cc_arch}=\$optarg"
 338   ;;
 339   esac
 340 done
 341
 342 # Preferred compiler:
 343 #  ${CC} (if set)
 344 #  ${cross_prefix}gcc (if cross-prefix specified)
 345 #  system compiler
 346 if test -z "${CC}${cross_prefix}"; then
 347   cc="$host_cc"
 348 else
 349   cc="${CC-${cross_prefix}gcc}"
 350 fi
 351
 352 if test -z "${CXX}${cross_prefix}"; then
 353   cxx="c++"
 354 else
 355   cxx="${CXX-${cross_prefix}g++}"
 356 fi
 357
 358 ar="${AR-${cross_prefix}ar}"
 359 as="${AS-${cross_prefix}as}"
 360 ccas="${CCAS-$cc}"
 361 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 362 ld="${LD-${cross_prefix}ld}"
 363 ranlib="${RANLIB-${cross_prefix}ranlib}"
 364 nm="${NM-${cross_prefix}nm}"
 365 smbd="$SMBD"
 366 strip="${STRIP-${cross_prefix}strip}"
 367 widl="${WIDL-${cross_prefix}widl}"
 368 windres="${WINDRES-${cross_prefix}windres}"
 369 windmc="${WINDMC-${cross_prefix}windmc}"
 370 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 371 query_pkg_config() {
 372     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 373 }
 374 pkg_config=query_pkg_config
 375 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 376
 377 # default flags for all hosts
 378 # We use -fwrapv to tell the compiler that we require a C dialect where
 379 # left shift of signed integers is well defined and has the expected
 380 # 2s-complement style results. (Both clang and gcc agree that it
 381 # provides these semantics.)
 382 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 383 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 384
 385 QEMU_LDFLAGS=
 386
 387 # Flags that are needed during configure but later taken care of by Meson
 388 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 389 CONFIGURE_LDFLAGS=
 390
 391
 392 check_define() {
 393 cat > $TMPC <<EOF
 394 #if !defined($1)
 395 #error $1 not defined
 396 #endif
 397 int main(void) { return 0; }
 398 EOF
 399   compile_object
 400 }
 401
 402 check_include() {
 403 cat > $TMPC <<EOF
 404 #include <$1>
 405 int main(void) { return 0; }
 406 EOF
 407   compile_object
 408 }
 409
 410 write_c_skeleton() {
 411     cat > $TMPC <<EOF
 412 int main(void) { return 0; }
 413 EOF
 414 }
 415
 416 if check_define __linux__ ; then
 417   targetos=linux
 418 elif check_define _WIN32 ; then
 419   targetos=windows
 420 elif check_define __OpenBSD__ ; then
 421   targetos=openbsd
 422 elif check_define __sun__ ; then
 423   targetos=sunos
 424 elif check_define __HAIKU__ ; then
 425   targetos=haiku
 426 elif check_define __FreeBSD__ ; then
 427   targetos=freebsd
 428 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 429   targetos=gnu/kfreebsd
 430 elif check_define __DragonFly__ ; then
 431   targetos=dragonfly
 432 elif check_define __NetBSD__; then
 433   targetos=netbsd
 434 elif check_define __APPLE__; then
 435   targetos=darwin
 436 else
 437   # This is a fatal error, but don't report it yet, because we
 438   # might be going to just print the --help text, or it might
 439   # be the result of a missing compiler.
 440   targetos=bogus
 441 fi
 442
 443 # OS specific
 444
 445 mingw32="no"
 446 bsd="no"
 447 linux="no"
 448 solaris="no"
 449 case $targetos in
 450 windows)
 451   mingw32="yes"
 452   plugins="no"
 453   pie="no"
 454 ;;
 455 gnu/kfreebsd)
 456   bsd="yes"
 457 ;;
 458 freebsd)
 459   bsd="yes"
 460   make="${MAKE-gmake}"
 461   # needed for kinfo_getvmmap(3) in libutil.h
 462 ;;
 463 dragonfly)
 464   bsd="yes"
 465   make="${MAKE-gmake}"
 466 ;;
 467 netbsd)
 468   bsd="yes"
 469   make="${MAKE-gmake}"
 470 ;;
 471 openbsd)
 472   bsd="yes"
 473   make="${MAKE-gmake}"
 474 ;;
 475 darwin)
 476   bsd="yes"
 477   darwin="yes"
 478   # Disable attempts to use ObjectiveC features in os/object.h since they
 479   # won't work when we're compiling with gcc as a C compiler.
 480   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 481 ;;
 482 sunos)
 483   solaris="yes"
 484   make="${MAKE-gmake}"
 485 # needed for CMSG_ macros in sys/socket.h
 486   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 487 # needed for TIOCWIN* defines in termios.h
 488   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 489 ;;
 490 haiku)
 491   pie="no"
 492   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 493 ;;
 494 linux)
 495   linux="yes"
 496 ;;
 497 esac
 498
 499 if test ! -z "$cpu" ; then
 500   # command line argument
 501   :
 502 elif check_define __i386__ ; then
 503   cpu="i386"
 504 elif check_define __x86_64__ ; then
 505   if check_define __ILP32__ ; then
 506     cpu="x32"
 507   else
 508     cpu="x86_64"
 509   fi
 510 elif check_define __sparc__ ; then
 511   if check_define __arch64__ ; then
 512     cpu="sparc64"
 513   else
 514     cpu="sparc"
 515   fi
 516 elif check_define _ARCH_PPC ; then
 517   if check_define _ARCH_PPC64 ; then
 518     if check_define _LITTLE_ENDIAN ; then
 519       cpu="ppc64le"
 520     else
 521       cpu="ppc64"
 522     fi
 523   else
 524     cpu="ppc"
 525   fi
 526 elif check_define __mips__ ; then
 527   cpu="mips"
 528 elif check_define __s390__ ; then
 529   if check_define __s390x__ ; then
 530     cpu="s390x"
 531   else
 532     cpu="s390"
 533   fi
 534 elif check_define __riscv ; then
 535   cpu="riscv"
 536 elif check_define __arm__ ; then
 537   cpu="arm"
 538 elif check_define __aarch64__ ; then
 539   cpu="aarch64"
 540 elif check_define __loongarch64 ; then
 541   cpu="loongarch64"
 542 else
 543   # Using uname is really broken, but it is just a fallback for architectures
 544   # that are going to use TCI anyway
 545   cpu=$(uname -m)
 546   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 547 fi
 548
 549 # Normalise host CPU name and set multilib cflags.  The canonicalization
 550 # isn't really necessary, because the architectures that we check for
 551 # should not hit the 'uname -m' case, but better safe than sorry.
 552 # Note that this case should only have supported host CPUs, not guests.
 553 case "$cpu" in
 554   armv*b|armv*l|arm)
 555     cpu="arm" ;;
 556
 557   i386|i486|i586|i686)
 558     cpu="i386"
 559     CPU_CFLAGS="-m32" ;;
 560   x32)
 561     cpu="x86_64"
 562     CPU_CFLAGS="-mx32" ;;
 563   x86_64|amd64)
 564     cpu="x86_64"
 565     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 566     # If we truly care, we should simply detect this case at
 567     # runtime and generate the fallback to serial emulation.
 568     CPU_CFLAGS="-m64 -mcx16" ;;
 569
 570   mips*)
 571     cpu="mips" ;;
 572
 573   ppc)
 574     CPU_CFLAGS="-m32" ;;
 575   ppc64)
 576     CPU_CFLAGS="-m64 -mbig-endian" ;;
 577   ppc64le)
 578     cpu="ppc64"
 579     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 580
 581   s390)
 582     CPU_CFLAGS="-m31" ;;
 583   s390x)
 584     CPU_CFLAGS="-m64" ;;
 585
 586   sparc|sun4[cdmuv])
 587     cpu="sparc"
 588     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 589   sparc64)
 590     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 591 esac
 592
 593 : ${make=${MAKE-make}}
 594
 595 # We prefer python 3.x. A bare 'python' is traditionally
 596 # python 2.x, but some distros have it as python 3.x, so
 597 # we check that too
 598 python=
 599 explicit_python=no
 600 for binary in "${PYTHON-python3}" python
 601 do
 602     if has "$binary"
 603     then
 604         python=$(command -v "$binary")
 605         break
 606     fi
 607 done
 608
 609
 610 # Check for ancillary tools used in testing
 611 genisoimage=
 612 for binary in genisoimage mkisofs
 613 do
 614     if has $binary
 615     then
 616         genisoimage=$(command -v "$binary")
 617         break
 618     fi
 619 done
 620
 621 # Default objcc to clang if available, otherwise use CC
 622 if has clang; then
 623   objcc=clang
 624 else
 625   objcc="$cc"
 626 fi
 627
 628 if test "$mingw32" = "yes" ; then
 629   EXESUF=".exe"
 630   # MinGW needs -mthreads for TLS and macro _MT.
 631   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 632   prefix="/qemu"
 633   bindir=""
 634   qemu_suffix=""
 635 fi
 636
 637 werror=""
 638
 639 meson_option_build_array() {
 640   printf '['
 641   (if test "$targetos" = windows; then
 642     IFS=\;
 643   else
 644     IFS=:
 645   fi
 646   for e in $1; do
 647     printf '"""'
 648     # backslash escape any '\' and '"' characters
 649     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 650     printf '""",'
 651   done)
 652   printf ']\n'
 653 }
 654
 655 . "$source_path/scripts/meson-buildoptions.sh"
 656
 657 meson_options=
 658 meson_option_add() {
 659   meson_options="$meson_options $(quote_sh "$1")"
 660 }
 661 meson_option_parse() {
 662   meson_options="$meson_options $(_meson_option_parse "$@")"
 663   if test $? -eq 1; then
 664     echo "ERROR: unknown option $1"
 665     echo "Try '$0 --help' for more information"
 666     exit 1
 667   fi
 668 }
 669
 670 for opt do
 671   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 672   case "$opt" in
 673   --help|-h) show_help=yes
 674   ;;
 675   --version|-V) exec cat "$source_path/VERSION"
 676   ;;
 677   --prefix=*) prefix="$optarg"
 678   ;;
 679   --cross-prefix=*)
 680   ;;
 681   --cc=*)
 682   ;;
 683   --host-cc=*) host_cc="$optarg"
 684   ;;
 685   --cxx=*)
 686   ;;
 687   --objcc=*) objcc="$optarg"
 688   ;;
 689   --make=*) make="$optarg"
 690   ;;
 691   --install=*)
 692   ;;
 693   --python=*) python="$optarg" ; explicit_python=yes
 694   ;;
 695   --skip-meson) skip_meson=yes
 696   ;;
 697   --meson=*) meson="$optarg"
 698   ;;
 699   --ninja=*) ninja="$optarg"
 700   ;;
 701   --smbd=*) smbd="$optarg"
 702   ;;
 703   --extra-cflags=*)
 704   ;;
 705   --extra-cxxflags=*)
 706   ;;
 707   --extra-objcflags=*)
 708   ;;
 709   --extra-ldflags=*)
 710   ;;
 711   --cross-cc-*)
 712   ;;
 713   --cross-prefix-*)
 714   ;;
 715   --enable-debug-info) meson_option_add -Ddebug=true
 716   ;;
 717   --disable-debug-info) meson_option_add -Ddebug=false
 718   ;;
 719   --enable-modules)
 720       modules="yes"
 721   ;;
 722   --disable-modules)
 723       modules="no"
 724   ;;
 725   --cpu=*)
 726   ;;
 727   --target-list=*) target_list="$optarg"
 728                    if test "$target_list_exclude"; then
 729                        error_exit "Can't mix --target-list with --target-list-exclude"
 730                    fi
 731   ;;
 732   --target-list-exclude=*) target_list_exclude="$optarg"
 733                    if test "$target_list"; then
 734                        error_exit "Can't mix --target-list-exclude with --target-list"
 735                    fi
 736   ;;
 737   --with-default-devices) meson_option_add -Ddefault_devices=true
 738   ;;
 739   --without-default-devices) meson_option_add -Ddefault_devices=false
 740   ;;
 741   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 742   ;;
 743   --with-devices-*) device_arch=${opt#--with-devices-};
 744                     device_arch=${device_arch%%=*}
 745                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 746                     if test -f "$cf"; then
 747                         device_archs="$device_archs $device_arch"
 748                         eval "devices_${device_arch}=\$optarg"
 749                     else
 750                         error_exit "File $cf does not exist"
 751                     fi
 752   ;;
 753   --without-default-features) # processed above
 754   ;;
 755   --static)
 756     static="yes"
 757     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 758   ;;
 759   --bindir=*) bindir="$optarg"
 760   ;;
 761   --with-suffix=*) qemu_suffix="$optarg"
 762   ;;
 763   --host=*|--build=*|\
 764   --disable-dependency-tracking|\
 765   --sbindir=*|--sharedstatedir=*|\
 766   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 767   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 768     # These switches are silently ignored, for compatibility with
 769     # autoconf-generated configure scripts. This allows QEMU's
 770     # configure to be used by RPM and similar macros that set
 771     # lots of directory switches by default.
 772   ;;
 773   --enable-debug-tcg) debug_tcg="yes"
 774   ;;
 775   --disable-debug-tcg) debug_tcg="no"
 776   ;;
 777   --enable-debug)
 778       # Enable debugging options that aren't excessively noisy
 779       debug_tcg="yes"
 780       meson_option_parse --enable-debug-mutex ""
 781       meson_option_add -Doptimization=0
 782       fortify_source="no"
 783   ;;
 784   --enable-sanitizers) sanitizers="yes"
 785   ;;
 786   --disable-sanitizers) sanitizers="no"
 787   ;;
 788   --enable-tsan) tsan="yes"
 789   ;;
 790   --disable-tsan) tsan="no"
 791   ;;
 792   --disable-tcg) tcg="disabled"
 793                  plugins="no"
 794   ;;
 795   --enable-tcg) tcg="enabled"
 796   ;;
 797   --disable-system) softmmu="no"
 798   ;;
 799   --enable-system) softmmu="yes"
 800   ;;
 801   --disable-user)
 802       linux_user="no" ;
 803       bsd_user="no" ;
 804   ;;
 805   --enable-user) ;;
 806   --disable-linux-user) linux_user="no"
 807   ;;
 808   --enable-linux-user) linux_user="yes"
 809   ;;
 810   --disable-bsd-user) bsd_user="no"
 811   ;;
 812   --enable-bsd-user) bsd_user="yes"
 813   ;;
 814   --enable-pie) pie="yes"
 815   ;;
 816   --disable-pie) pie="no"
 817   ;;
 818   --enable-werror) werror="yes"
 819   ;;
 820   --disable-werror) werror="no"
 821   ;;
 822   --enable-stack-protector) stack_protector="yes"
 823   ;;
 824   --disable-stack-protector) stack_protector="no"
 825   ;;
 826   --enable-safe-stack) safe_stack="yes"
 827   ;;
 828   --disable-safe-stack) safe_stack="no"
 829   ;;
 830   --enable-cfi)
 831       cfi="true";
 832       meson_option_add -Db_lto=true
 833   ;;
 834   --disable-cfi) cfi="false"
 835   ;;
 836   --disable-fdt) fdt="disabled"
 837   ;;
 838   --enable-fdt) fdt="enabled"
 839   ;;
 840   --enable-fdt=git) fdt="internal"
 841   ;;
 842   --enable-fdt=*) fdt="$optarg"
 843   ;;
 844   --with-coroutine=*) coroutine="$optarg"
 845   ;;
 846   --with-git=*) git="$optarg"
 847   ;;
 848   --with-git-submodules=*)
 849       git_submodules_action="$optarg"
 850   ;;
 851   --enable-plugins) if test "$mingw32" = "yes"; then
 852                         error_exit "TCG plugins not currently supported on Windows platforms"
 853                     else
 854                         plugins="yes"
 855                     fi
 856   ;;
 857   --disable-plugins) plugins="no"
 858   ;;
 859   --enable-containers) use_containers="yes"
 860   ;;
 861   --disable-containers) use_containers="no"
 862   ;;
 863   --gdb=*) gdb_bin="$optarg"
 864   ;;
 865   --enable-vfio-user-server) vfio_user_server="enabled"
 866   ;;
 867   --disable-vfio-user-server) vfio_user_server="disabled"
 868   ;;
 869   # everything else has the same name in configure and meson
 870   --*) meson_option_parse "$opt" "$optarg"
 871   ;;
 872   esac
 873 done
 874
 875 # test for any invalid configuration combinations
 876 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 877     error_exit "Can't enable plugins on non-TCG builds"
 878 fi
 879
 880 case $git_submodules_action in
 881     update|validate)
 882         if test ! -e "$source_path/.git"; then
 883             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 884             exit 1
 885         fi
 886     ;;
 887     ignore)
 888         if ! test -f "$source_path/ui/keycodemapdb/README"
 889         then
 890             echo
 891             echo "ERROR: missing GIT submodules"
 892             echo
 893             if test -e "$source_path/.git"; then
 894                 echo "--with-git-submodules=ignore specified but submodules were not"
 895                 echo "checked out.  Please initialize and update submodules."
 896             else
 897                 echo "This is not a GIT checkout but module content appears to"
 898                 echo "be missing. Do not use 'git archive' or GitHub download links"
 899                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 900                 echo "supported with source archives linked from:"
 901                 echo
 902                 echo "  https://www.qemu.org/download/#source"
 903                 echo
 904                 echo "Developers working with GIT can use scripts/archive-source.sh"
 905                 echo "if they need to create valid source archives."
 906             fi
 907             echo
 908             exit 1
 909         fi
 910     ;;
 911     *)
 912         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 913         exit 1
 914     ;;
 915 esac
 916
 917 default_target_list=""
 918 mak_wilds=""
 919
 920 if [ "$linux_user" != no ]; then
 921     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 922         linux_user=yes
 923     elif [ "$linux_user" = yes ]; then
 924         error_exit "linux-user not supported on this architecture"
 925     fi
 926 fi
 927 if [ "$bsd_user" != no ]; then
 928     if [ "$bsd_user" = "" ]; then
 929         test $targetos = freebsd && bsd_user=yes
 930     fi
 931     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 932         error_exit "bsd-user not supported on this host OS"
 933     fi
 934 fi
 935 if [ "$softmmu" = "yes" ]; then
 936     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 937 fi
 938 if [ "$linux_user" = "yes" ]; then
 939     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 940 fi
 941 if [ "$bsd_user" = "yes" ]; then
 942     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 943 fi
 944
 945 for config in $mak_wilds; do
 946     target="$(basename "$config" .mak)"
 947     if echo "$target_list_exclude" | grep -vq "$target"; then
 948         default_target_list="${default_target_list} $target"
 949     fi
 950 done
 951
 952 if test x"$show_help" = x"yes" ; then
 953 cat << EOF
 954
 955 Usage: configure [options]
 956 Options: [defaults in brackets after descriptions]
 957
 958 Standard options:
 959   --help                   print this message
 960   --prefix=PREFIX          install in PREFIX [$prefix]
 961   --target-list=LIST       set target list (default: build all)
 962 $(echo Available targets: $default_target_list | \
 963   fold -s -w 53 | sed -e 's/^/                           /')
 964   --target-list-exclude=LIST exclude a set of targets from the default target-list
 965
 966 Advanced options (experts only):
 967   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 968   --cc=CC                  use C compiler CC [$cc]
 969   --host-cc=CC             use C compiler CC [$host_cc] for code run at
 970                            build time
 971   --cxx=CXX                use C++ compiler CXX [$cxx]
 972   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
 973   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
 974   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
 975   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
 976   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
 977   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
 978   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
 979   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
 980   --make=MAKE              use specified make [$make]
 981   --python=PYTHON          use specified python [$python]
 982   --meson=MESON            use specified meson [$meson]
 983   --ninja=NINJA            use specified ninja [$ninja]
 984   --smbd=SMBD              use specified smbd [$smbd]
 985   --with-git=GIT           use specified git [$git]
 986   --with-git-submodules=update   update git submodules (default if .git dir exists)
 987   --with-git-submodules=validate fail if git submodules are not up to date
 988   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
 989   --static                 enable static build [$static]
 990   --bindir=PATH            install binaries in PATH
 991   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
 992   --without-default-features default all --enable-* options to "disabled"
 993   --without-default-devices  do not include any device that is not needed to
 994                            start the emulator (only use if you are including
 995                            desired devices in configs/devices/)
 996   --with-devices-ARCH=NAME override default configs/devices
 997   --enable-debug           enable common debug build options
 998   --enable-sanitizers      enable default sanitizers
 999   --enable-tsan            enable thread sanitizer
1000   --disable-werror         disable compilation abort on warning
1001   --disable-stack-protector disable compiler-provided stack protection
1002   --cpu=CPU                Build for host CPU [$cpu]
1003   --with-coroutine=BACKEND coroutine backend. Supported options:
1004                            ucontext, sigaltstack, windows
1005   --enable-plugins
1006                            enable plugins via shared library loading
1007   --disable-containers     don't use containers for cross-building
1008   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1009 EOF
1010   meson_options_help
1011 cat << EOF
1012   system          all system emulation targets
1013   user            supported user emulation targets
1014   linux-user      all linux usermode emulation targets
1015   bsd-user        all BSD usermode emulation targets
1016   pie             Position Independent Executables
1017   modules         modules support (non-Windows)
1018   debug-tcg       TCG debugging (default is disabled)
1019   debug-info      debugging information
1020   safe-stack      SafeStack Stack Smash Protection. Depends on
1021                   clang/llvm and requires coroutine backend ucontext.
1022
1023 NOTE: The object files are built at the place where configure is launched
1024 EOF
1025 exit 0
1026 fi
1027
1028 # Remove old dependency files to make sure that they get properly regenerated
1029 rm -f ./*/config-devices.mak.d
1030
1031 if test -z "$python"
1032 then
1033     error_exit "Python not found. Use --python=/path/to/python"
1034 fi
1035 if ! has "$make"
1036 then
1037     error_exit "GNU make ($make) not found"
1038 fi
1039
1040 # Note that if the Python conditional here evaluates True we will exit
1041 # with status 1 which is a shell 'false' value.
1042 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1043   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1044       "Use --python=/path/to/python to specify a supported Python."
1045 fi
1046
1047 # Suppress writing compiled files
1048 python="$python -B"
1049
1050 if test -z "$meson"; then
1051     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.61.5; then
1052         meson=meson
1053     elif test "$git_submodules_action" != 'ignore' ; then
1054         meson=git
1055     elif test -e "${source_path}/meson/meson.py" ; then
1056         meson=internal
1057     else
1058         if test "$explicit_python" = yes; then
1059             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1060         else
1061             error_exit "Meson not found.  Use --meson=/path/to/meson"
1062         fi
1063     fi
1064 else
1065     # Meson uses its own Python interpreter to invoke other Python scripts,
1066     # but the user wants to use the one they specified with --python.
1067     #
1068     # We do not want to override the distro Python interpreter (and sometimes
1069     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1070     # just require --meson=git|internal together with --python.
1071     if test "$explicit_python" = yes; then
1072         case "$meson" in
1073             git | internal) ;;
1074             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1075         esac
1076     fi
1077 fi
1078
1079 if test "$meson" = git; then
1080     git_submodules="${git_submodules} meson"
1081 fi
1082
1083 case "$meson" in
1084     git | internal)
1085         meson="$python ${source_path}/meson/meson.py"
1086         ;;
1087     *) meson=$(command -v "$meson") ;;
1088 esac
1089
1090 # Probe for ninja
1091
1092 if test -z "$ninja"; then
1093     for c in ninja ninja-build samu; do
1094         if has $c; then
1095             ninja=$(command -v "$c")
1096             break
1097         fi
1098     done
1099     if test -z "$ninja"; then
1100       error_exit "Cannot find Ninja"
1101     fi
1102 fi
1103
1104 # Check that the C compiler works. Doing this here before testing
1105 # the host CPU ensures that we had a valid CC to autodetect the
1106 # $cpu var (and we should bail right here if that's not the case).
1107 # It also allows the help message to be printed without a CC.
1108 write_c_skeleton;
1109 if compile_object ; then
1110   : C compiler works ok
1111 else
1112     error_exit "\"$cc\" either does not exist or does not work"
1113 fi
1114 if ! compile_prog ; then
1115     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1116 fi
1117
1118 # Consult white-list to determine whether to enable werror
1119 # by default.  Only enable by default for git builds
1120 if test -z "$werror" ; then
1121     if test "$git_submodules_action" != "ignore" && \
1122         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1123         werror="yes"
1124     else
1125         werror="no"
1126     fi
1127 fi
1128
1129 if test "$targetos" = "bogus"; then
1130     # Now that we know that we're not printing the help and that
1131     # the compiler works (so the results of the check_defines we used
1132     # to identify the OS are reliable), if we didn't recognize the
1133     # host OS we should stop now.
1134     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1135 fi
1136
1137 # Check whether the compiler matches our minimum requirements:
1138 cat > $TMPC << EOF
1139 #if defined(__clang_major__) && defined(__clang_minor__)
1140 # ifdef __apple_build_version__
1141 #  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1142 #   error You need at least XCode Clang v12.0 to compile QEMU
1143 #  endif
1144 # else
1145 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1146 #   error You need at least Clang v10.0 to compile QEMU
1147 #  endif
1148 # endif
1149 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1150 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1151 #  error You need at least GCC v7.4.0 to compile QEMU
1152 # endif
1153 #else
1154 # error You either need GCC or Clang to compiler QEMU
1155 #endif
1156 int main (void) { return 0; }
1157 EOF
1158 if ! compile_prog "" "" ; then
1159     error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1160 fi
1161
1162 # Accumulate -Wfoo and -Wno-bar separately.
1163 # We will list all of the enable flags first, and the disable flags second.
1164 # Note that we do not add -Werror, because that would enable it for all
1165 # configure tests. If a configure test failed due to -Werror this would
1166 # just silently disable some features, so it's too error prone.
1167
1168 warn_flags=
1169 add_to warn_flags -Wundef
1170 add_to warn_flags -Wwrite-strings
1171 add_to warn_flags -Wmissing-prototypes
1172 add_to warn_flags -Wstrict-prototypes
1173 add_to warn_flags -Wredundant-decls
1174 add_to warn_flags -Wold-style-declaration
1175 add_to warn_flags -Wold-style-definition
1176 add_to warn_flags -Wtype-limits
1177 add_to warn_flags -Wformat-security
1178 add_to warn_flags -Wformat-y2k
1179 add_to warn_flags -Winit-self
1180 add_to warn_flags -Wignored-qualifiers
1181 add_to warn_flags -Wempty-body
1182 add_to warn_flags -Wnested-externs
1183 add_to warn_flags -Wendif-labels
1184 add_to warn_flags -Wexpansion-to-defined
1185 add_to warn_flags -Wimplicit-fallthrough=2
1186 add_to warn_flags -Wmissing-format-attribute
1187 add_to warn_flags -Wthread-safety
1188
1189 nowarn_flags=
1190 add_to nowarn_flags -Wno-initializer-overrides
1191 add_to nowarn_flags -Wno-missing-include-dirs
1192 add_to nowarn_flags -Wno-shift-negative-value
1193 add_to nowarn_flags -Wno-string-plus-int
1194 add_to nowarn_flags -Wno-typedef-redefinition
1195 add_to nowarn_flags -Wno-tautological-type-limit-compare
1196 add_to nowarn_flags -Wno-psabi
1197 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1198
1199 gcc_flags="$warn_flags $nowarn_flags"
1200
1201 cc_has_warning_flag() {
1202     write_c_skeleton;
1203
1204     # Use the positive sense of the flag when testing for -Wno-wombat
1205     # support (gcc will happily accept the -Wno- form of unknown
1206     # warning options).
1207     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1208     compile_prog "-Werror $optflag" ""
1209 }
1210
1211 objcc_has_warning_flag() {
1212     cat > $TMPM <<EOF
1213 int main(void) { return 0; }
1214 EOF
1215
1216     # Use the positive sense of the flag when testing for -Wno-wombat
1217     # support (gcc will happily accept the -Wno- form of unknown
1218     # warning options).
1219     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1220     do_objc -Werror $optflag \
1221       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1222       -o $TMPE $TMPM $QEMU_LDFLAGS
1223 }
1224
1225 for flag in $gcc_flags; do
1226     if cc_has_warning_flag $flag ; then
1227         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1228     fi
1229     if objcc_has_warning_flag $flag ; then
1230         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1231     fi
1232 done
1233
1234 if test "$stack_protector" != "no"; then
1235   cat > $TMPC << EOF
1236 int main(int argc, char *argv[])
1237 {
1238     char arr[64], *p = arr, *c = argv[argc - 1];
1239     while (*c) {
1240         *p++ = *c++;
1241     }
1242     return 0;
1243 }
1244 EOF
1245   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1246   sp_on=0
1247   for flag in $gcc_flags; do
1248     # We need to check both a compile and a link, since some compiler
1249     # setups fail only on a .c->.o compile and some only at link time
1250     if compile_object "-Werror $flag" &&
1251        compile_prog "-Werror $flag" ""; then
1252       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1253       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1254       sp_on=1
1255       break
1256     fi
1257   done
1258   if test "$stack_protector" = yes; then
1259     if test $sp_on = 0; then
1260       error_exit "Stack protector not supported"
1261     fi
1262   fi
1263 fi
1264
1265 # Our module code doesn't support Windows
1266 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1267   error_exit "Modules are not available for Windows"
1268 fi
1269
1270 # Static linking is not possible with plugins, modules or PIE
1271 if test "$static" = "yes" ; then
1272   if test "$modules" = "yes" ; then
1273     error_exit "static and modules are mutually incompatible"
1274   fi
1275   if test "$plugins" = "yes"; then
1276     error_exit "static and plugins are mutually incompatible"
1277   else
1278     plugins="no"
1279   fi
1280 fi
1281 test "$plugins" = "" && plugins=yes
1282
1283 cat > $TMPC << EOF
1284
1285 #ifdef __linux__
1286 #  define THREAD __thread
1287 #else
1288 #  define THREAD
1289 #endif
1290 static THREAD int tls_var;
1291 int main(void) { return tls_var; }
1292 EOF
1293
1294 # Meson currently only handles pie as a boolean for now so if we have
1295 # explicitly disabled PIE we need to extend our cflags because it wont.
1296 if test "$static" = "yes"; then
1297   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1298     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1299     pie="yes"
1300   elif test "$pie" = "yes"; then
1301     error_exit "-static-pie not available due to missing toolchain support"
1302   else
1303     pie="no"
1304     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1305   fi
1306 elif test "$pie" = "no"; then
1307   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1308     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1309     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1310     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1311   fi
1312 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1313   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1314   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1315   pie="yes"
1316 elif test "$pie" = "yes"; then
1317   error_exit "PIE not available due to missing toolchain support"
1318 else
1319   echo "Disabling PIE due to missing toolchain support"
1320   pie="no"
1321 fi
1322
1323 ##########################################
1324 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1325 # use i686 as default anyway, but for those that don't, an explicit
1326 # specification is necessary
1327
1328 if test "$cpu" = "i386"; then
1329   cat > $TMPC << EOF
1330 static int sfaa(int *ptr)
1331 {
1332   return __sync_fetch_and_and(ptr, 0);
1333 }
1334
1335 int main(void)
1336 {
1337   int val = 42;
1338   val = __sync_val_compare_and_swap(&val, 0, 1);
1339   sfaa(&val);
1340   return val;
1341 }
1342 EOF
1343   if ! compile_prog "" "" ; then
1344     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1345   fi
1346 fi
1347
1348 if test -z "${target_list+xxx}" ; then
1349     default_targets=yes
1350     for target in $default_target_list; do
1351         target_list="$target_list $target"
1352     done
1353     target_list="${target_list# }"
1354 else
1355     default_targets=no
1356     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1357     for target in $target_list; do
1358         # Check that we recognised the target name; this allows a more
1359         # friendly error message than if we let it fall through.
1360         case " $default_target_list " in
1361             *" $target "*)
1362                 ;;
1363             *)
1364                 error_exit "Unknown target name '$target'"
1365                 ;;
1366         esac
1367     done
1368 fi
1369
1370 # see if system emulation was really requested
1371 case " $target_list " in
1372   *"-softmmu "*) softmmu=yes
1373   ;;
1374   *) softmmu=no
1375   ;;
1376 esac
1377
1378 if test "$tcg" = "auto"; then
1379   if test -z "$target_list"; then
1380     tcg="disabled"
1381   else
1382     tcg="enabled"
1383   fi
1384 fi
1385
1386 if test "$tcg" = "enabled"; then
1387     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1388     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1389 fi
1390
1391 ##########################################
1392 # big/little endian test
1393 cat > $TMPC << EOF
1394 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1395 # error LITTLE
1396 #endif
1397 int main(void) { return 0; }
1398 EOF
1399
1400 if ! compile_prog ; then
1401   bigendian="no"
1402 else
1403   cat > $TMPC << EOF
1404 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1405 # error BIG
1406 #endif
1407 int main(void) { return 0; }
1408 EOF
1409
1410   if ! compile_prog ; then
1411     bigendian="yes"
1412   else
1413     echo big/little test failed
1414     exit 1
1415   fi
1416 fi
1417
1418 ##########################################
1419 # pkg-config probe
1420
1421 if ! has "$pkg_config_exe"; then
1422   error_exit "pkg-config binary '$pkg_config_exe' not found"
1423 fi
1424
1425 ##########################################
1426 # glib support probe
1427
1428 # When bumping glib_req_ver, please check also whether we should increase
1429 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1430 glib_req_ver=2.56
1431 glib_modules=gthread-2.0
1432 if test "$modules" = yes; then
1433     glib_modules="$glib_modules gmodule-export-2.0"
1434 elif test "$plugins" = "yes"; then
1435     glib_modules="$glib_modules gmodule-no-export-2.0"
1436 fi
1437
1438 for i in $glib_modules; do
1439     if $pkg_config --atleast-version=$glib_req_ver $i; then
1440         glib_cflags=$($pkg_config --cflags $i)
1441         glib_libs=$($pkg_config --libs $i)
1442     else
1443         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1444     fi
1445 done
1446
1447 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1448 if test -z "$glib_bindir" ; then
1449         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1450 fi
1451
1452 # This workaround is required due to a bug in pkg-config file for glib as it
1453 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1454
1455 if test "$static" = yes && test "$mingw32" = yes; then
1456     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1457 fi
1458
1459 # Sanity check that the current size_t matches the
1460 # size that glib thinks it should be. This catches
1461 # problems on multi-arch where people try to build
1462 # 32-bit QEMU while pointing at 64-bit glib headers
1463 cat > $TMPC <<EOF
1464 #include <glib.h>
1465 #include <unistd.h>
1466
1467 #define QEMU_BUILD_BUG_ON(x) \
1468   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1469
1470 int main(void) {
1471    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1472    return 0;
1473 }
1474 EOF
1475
1476 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1477     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1478                "You probably need to set PKG_CONFIG_LIBDIR"\
1479                "to point to the right pkg-config files for your"\
1480                "build target"
1481 fi
1482
1483 # Silence clang warnings triggered by glib < 2.57.2
1484 cat > $TMPC << EOF
1485 #include <glib.h>
1486 typedef struct Foo {
1487     int i;
1488 } Foo;
1489 static void foo_free(Foo *f)
1490 {
1491     g_free(f);
1492 }
1493 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1494 int main(void) { return 0; }
1495 EOF
1496 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1497     if cc_has_warning_flag "-Wno-unused-function"; then
1498         glib_cflags="$glib_cflags -Wno-unused-function"
1499         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1500     fi
1501 fi
1502
1503 ##########################################
1504 # fdt probe
1505
1506 case "$fdt" in
1507   auto | enabled | internal)
1508     # Simpler to always update submodule, even if not needed.
1509     git_submodules="${git_submodules} dtc"
1510     ;;
1511 esac
1512
1513 ##########################################
1514 # check and set a backend for coroutine
1515
1516 # We prefer ucontext, but it's not always possible. The fallback
1517 # is sigcontext. On Windows the only valid backend is the Windows
1518 # specific one.
1519
1520 ucontext_works=no
1521 if test "$darwin" != "yes"; then
1522   cat > $TMPC << EOF
1523 #include <ucontext.h>
1524 #ifdef __stub_makecontext
1525 #error Ignoring glibc stub makecontext which will always fail
1526 #endif
1527 int main(void) { makecontext(0, 0, 0); return 0; }
1528 EOF
1529   if compile_prog "" "" ; then
1530     ucontext_works=yes
1531   fi
1532 fi
1533
1534 if test "$coroutine" = ""; then
1535   if test "$mingw32" = "yes"; then
1536     coroutine=win32
1537   elif test "$ucontext_works" = "yes"; then
1538     coroutine=ucontext
1539   else
1540     coroutine=sigaltstack
1541   fi
1542 else
1543   case $coroutine in
1544   windows)
1545     if test "$mingw32" != "yes"; then
1546       error_exit "'windows' coroutine backend only valid for Windows"
1547     fi
1548     # Unfortunately the user visible backend name doesn't match the
1549     # coroutine-*.c filename for this case, so we have to adjust it here.
1550     coroutine=win32
1551     ;;
1552   ucontext)
1553     if test "$ucontext_works" != "yes"; then
1554       error_exit "'ucontext' backend requested but makecontext not available"
1555     fi
1556     ;;
1557   sigaltstack)
1558     if test "$mingw32" = "yes"; then
1559       error_exit "only the 'windows' coroutine backend is valid for Windows"
1560     fi
1561     ;;
1562   *)
1563     error_exit "unknown coroutine backend $coroutine"
1564     ;;
1565   esac
1566 fi
1567
1568 ##################################################
1569 # SafeStack
1570
1571
1572 if test "$safe_stack" = "yes"; then
1573 cat > $TMPC << EOF
1574 int main(void)
1575 {
1576 #if ! __has_feature(safe_stack)
1577 #error SafeStack Disabled
1578 #endif
1579     return 0;
1580 }
1581 EOF
1582   flag="-fsanitize=safe-stack"
1583   # Check that safe-stack is supported and enabled.
1584   if compile_prog "-Werror $flag" "$flag"; then
1585     # Flag needed both at compilation and at linking
1586     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1587     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1588   else
1589     error_exit "SafeStack not supported by your compiler"
1590   fi
1591   if test "$coroutine" != "ucontext"; then
1592     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1593   fi
1594 else
1595 cat > $TMPC << EOF
1596 int main(void)
1597 {
1598 #if defined(__has_feature)
1599 #if __has_feature(safe_stack)
1600 #error SafeStack Enabled
1601 #endif
1602 #endif
1603     return 0;
1604 }
1605 EOF
1606 if test "$safe_stack" = "no"; then
1607   # Make sure that safe-stack is disabled
1608   if ! compile_prog "-Werror" ""; then
1609     # SafeStack was already enabled, try to explicitly remove the feature
1610     flag="-fno-sanitize=safe-stack"
1611     if ! compile_prog "-Werror $flag" "$flag"; then
1612       error_exit "Configure cannot disable SafeStack"
1613     fi
1614     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1615     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1616   fi
1617 else # "$safe_stack" = ""
1618   # Set safe_stack to yes or no based on pre-existing flags
1619   if compile_prog "-Werror" ""; then
1620     safe_stack="no"
1621   else
1622     safe_stack="yes"
1623     if test "$coroutine" != "ucontext"; then
1624       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1625     fi
1626   fi
1627 fi
1628 fi
1629
1630 ########################################
1631 # check if ccache is interfering with
1632 # semantic analysis of macros
1633
1634 unset CCACHE_CPP2
1635 ccache_cpp2=no
1636 cat > $TMPC << EOF
1637 static const int Z = 1;
1638 #define fn() ({ Z; })
1639 #define TAUT(X) ((X) == Z)
1640 #define PAREN(X, Y) (X == Y)
1641 #define ID(X) (X)
1642 int main(void)
1643 {
1644     int x = 0, y = 0;
1645     x = ID(x);
1646     x = fn();
1647     fn();
1648     if (PAREN(x, y)) return 0;
1649     if (TAUT(Z)) return 0;
1650     return 0;
1651 }
1652 EOF
1653
1654 if ! compile_object "-Werror"; then
1655     ccache_cpp2=yes
1656 fi
1657
1658 #################################################
1659 # clang does not support glibc + FORTIFY_SOURCE.
1660
1661 if test "$fortify_source" != "no"; then
1662   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1663     fortify_source="no";
1664   elif test -n "$cxx" && has $cxx &&
1665        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1666     fortify_source="no";
1667   else
1668     fortify_source="yes"
1669   fi
1670 fi
1671
1672 ##########################################
1673 # checks for sanitizers
1674
1675 have_asan=no
1676 have_ubsan=no
1677 have_asan_iface_h=no
1678 have_asan_iface_fiber=no
1679
1680 if test "$sanitizers" = "yes" ; then
1681   write_c_skeleton
1682   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1683       have_asan=yes
1684   fi
1685
1686   # we could use a simple skeleton for flags checks, but this also
1687   # detect the static linking issue of ubsan, see also:
1688   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1689   cat > $TMPC << EOF
1690 #include <stdlib.h>
1691 int main(void) {
1692     void *tmp = malloc(10);
1693     if (tmp != NULL) {
1694         return *(int *)(tmp + 2);
1695     }
1696     return 1;
1697 }
1698 EOF
1699   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1700       have_ubsan=yes
1701   fi
1702
1703   if check_include "sanitizer/asan_interface.h" ; then
1704       have_asan_iface_h=yes
1705   fi
1706
1707   cat > $TMPC << EOF
1708 #include <sanitizer/asan_interface.h>
1709 int main(void) {
1710   __sanitizer_start_switch_fiber(0, 0, 0);
1711   return 0;
1712 }
1713 EOF
1714   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1715       have_asan_iface_fiber=yes
1716   fi
1717 fi
1718
1719 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1720 # keep it separate until that is not the case.
1721 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1722   error_exit "TSAN is not supported with other sanitiziers."
1723 fi
1724 have_tsan=no
1725 have_tsan_iface_fiber=no
1726 if test "$tsan" = "yes" ; then
1727   write_c_skeleton
1728   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1729       have_tsan=yes
1730   fi
1731   cat > $TMPC << EOF
1732 #include <sanitizer/tsan_interface.h>
1733 int main(void) {
1734   __tsan_create_fiber(0);
1735   return 0;
1736 }
1737 EOF
1738   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1739       have_tsan_iface_fiber=yes
1740   fi
1741 fi
1742
1743 ##########################################
1744 # functions to probe cross compilers
1745
1746 container="no"
1747 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1748     case $($python "$source_path"/tests/docker/docker.py probe) in
1749         *docker) container=docker ;;
1750         podman) container=podman ;;
1751         no) container=no ;;
1752     esac
1753     if test "$container" != "no"; then
1754         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1755     fi
1756 fi
1757
1758 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1759 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1760 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1761 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1762 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1763 : ${cross_prefix_armeb="$cross_prefix_arm"}
1764 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1765 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1766 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1767 : ${cross_prefix_i386="i686-linux-gnu-"}
1768 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1769 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1770 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1771 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1772 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1773 : ${cross_prefix_mips="mips-linux-gnu-"}
1774 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1775 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1776 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1777 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1778 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1779 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1780 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1781 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1782 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1783 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1784
1785 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1786 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1787 : ${cross_cc_armeb="$cross_cc_arm"}
1788 : ${cross_cc_cflags_armeb="-mbig-endian"}
1789 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1790 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1791 : ${cross_cc_cflags_i386="-m32"}
1792 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1793 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1794 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1795 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1796 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1797 : ${cross_cc_sparc="$cross_cc_sparc64"}
1798 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1799 : ${cross_cc_cflags_x86_64="-m64"}
1800
1801 compute_target_variable() {
1802   eval "$2="
1803   if eval test -n "\"\${cross_prefix_$1}\""; then
1804     if eval has "\"\${cross_prefix_$1}\$3\""; then
1805       eval "$2=\"\${cross_prefix_$1}\$3\""
1806     fi
1807   fi
1808 }
1809
1810 have_target() {
1811   for i; do
1812     case " $target_list " in
1813       *" $i "*) return 0;;
1814       *) ;;
1815     esac
1816   done
1817   return 1
1818 }
1819
1820 # probe_target_compiler TARGET
1821 #
1822 # Look for a compiler for the given target, either native or cross.
1823 # Set variables target_* if a compiler is found, and container_cross_*
1824 # if a Docker-based cross-compiler image is known for the target.
1825 # Set got_cross_cc to yes/no depending on whether a non-container-based
1826 # compiler was found.
1827 #
1828 # If TARGET is a user-mode emulation target, also set build_static to
1829 # "y" if static linking is possible.
1830 #
1831 probe_target_compiler() {
1832   # reset all output variables
1833   got_cross_cc=no
1834   container_image=
1835   container_hosts=
1836   container_cross_cc=
1837   container_cross_ar=
1838   container_cross_as=
1839   container_cross_ld=
1840   container_cross_nm=
1841   container_cross_objcopy=
1842   container_cross_ranlib=
1843   container_cross_strip=
1844
1845   # We shall skip configuring the target compiler if the user didn't
1846   # bother enabling an appropriate guest. This avoids building
1847   # extraneous firmware images and tests.
1848   if test "${target_list#*$1}" = "$1"; then
1849       return 1
1850   fi
1851
1852   target_arch=${1%%-*}
1853   case $target_arch in
1854     aarch64) container_hosts="x86_64 aarch64" ;;
1855     alpha) container_hosts=x86_64 ;;
1856     arm) container_hosts="x86_64 aarch64" ;;
1857     cris) container_hosts=x86_64 ;;
1858     hexagon) container_hosts=x86_64 ;;
1859     hppa) container_hosts=x86_64 ;;
1860     i386) container_hosts=x86_64 ;;
1861     loongarch64) container_hosts=x86_64 ;;
1862     m68k) container_hosts=x86_64 ;;
1863     microblaze) container_hosts=x86_64 ;;
1864     mips64el) container_hosts=x86_64 ;;
1865     mips64) container_hosts=x86_64 ;;
1866     mipsel) container_hosts=x86_64 ;;
1867     mips) container_hosts=x86_64 ;;
1868     nios2) container_hosts=x86_64 ;;
1869     ppc) container_hosts=x86_64 ;;
1870     ppc64|ppc64le) container_hosts=x86_64 ;;
1871     riscv64) container_hosts=x86_64 ;;
1872     s390x) container_hosts=x86_64 ;;
1873     sh4) container_hosts=x86_64 ;;
1874     sparc64) container_hosts=x86_64 ;;
1875     tricore) container_hosts=x86_64 ;;
1876     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1877     xtensa*) container_hosts=x86_64 ;;
1878   esac
1879
1880   for host in $container_hosts; do
1881     test "$container" != no || continue
1882     test "$host" = "$cpu" || continue
1883     case $target_arch in
1884       aarch64)
1885         # We don't have any bigendian build tools so we only use this for AArch64
1886         container_image=debian-arm64-cross
1887         container_cross_prefix=aarch64-linux-gnu-
1888         container_cross_cc=${container_cross_prefix}gcc-10
1889         ;;
1890       alpha)
1891         container_image=debian-alpha-cross
1892         container_cross_prefix=alpha-linux-gnu-
1893         ;;
1894       arm)
1895         # We don't have any bigendian build tools so we only use this for ARM
1896         container_image=debian-armhf-cross
1897         container_cross_prefix=arm-linux-gnueabihf-
1898         ;;
1899       cris)
1900         container_image=fedora-cris-cross
1901         container_cross_prefix=cris-linux-gnu-
1902         ;;
1903       hexagon)
1904         container_image=debian-hexagon-cross
1905         container_cross_prefix=hexagon-unknown-linux-musl-
1906         container_cross_cc=${container_cross_prefix}clang
1907         ;;
1908       hppa)
1909         container_image=debian-hppa-cross
1910         container_cross_prefix=hppa-linux-gnu-
1911         ;;
1912       i386)
1913         container_image=fedora-i386-cross
1914         container_cross_prefix=
1915         ;;
1916       loongarch64)
1917         container_image=debian-loongarch-cross
1918         container_cross_prefix=loongarch64-unknown-linux-gnu-
1919         ;;
1920       m68k)
1921         container_image=debian-m68k-cross
1922         container_cross_prefix=m68k-linux-gnu-
1923         ;;
1924       microblaze)
1925         container_image=debian-microblaze-cross
1926         container_cross_prefix=microblaze-linux-musl-
1927         ;;
1928       mips64el)
1929         container_image=debian-mips64el-cross
1930         container_cross_prefix=mips64el-linux-gnuabi64-
1931         ;;
1932       mips64)
1933         container_image=debian-mips64-cross
1934         container_cross_prefix=mips64-linux-gnuabi64-
1935         ;;
1936       mipsel)
1937         container_image=debian-mipsel-cross
1938         container_cross_prefix=mipsel-linux-gnu-
1939         ;;
1940       mips)
1941         container_image=debian-mips-cross
1942         container_cross_prefix=mips-linux-gnu-
1943         ;;
1944       nios2)
1945         container_image=debian-nios2-cross
1946         container_cross_prefix=nios2-linux-gnu-
1947         ;;
1948       ppc)
1949         container_image=debian-powerpc-test-cross
1950         container_cross_prefix=powerpc-linux-gnu-
1951         container_cross_cc=${container_cross_prefix}gcc-10
1952         ;;
1953       ppc64|ppc64le)
1954         container_image=debian-powerpc-test-cross
1955         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1956         container_cross_cc=${container_cross_prefix}gcc-10
1957         ;;
1958       riscv64)
1959         container_image=debian-riscv64-test-cross
1960         container_cross_prefix=riscv64-linux-gnu-
1961         ;;
1962       s390x)
1963         container_image=debian-s390x-cross
1964         container_cross_prefix=s390x-linux-gnu-
1965         ;;
1966       sh4)
1967         container_image=debian-sh4-cross
1968         container_cross_prefix=sh4-linux-gnu-
1969         ;;
1970       sparc64)
1971         container_image=debian-sparc64-cross
1972         container_cross_prefix=sparc64-linux-gnu-
1973         ;;
1974       tricore)
1975         container_image=debian-tricore-cross
1976         container_cross_prefix=tricore-
1977         container_cross_as=tricore-as
1978         container_cross_ld=tricore-ld
1979         break
1980         ;;
1981       x86_64)
1982         container_image=debian-amd64-cross
1983         container_cross_prefix=x86_64-linux-gnu-
1984         ;;
1985       xtensa*)
1986         container_hosts=x86_64
1987         container_image=debian-xtensa-cross
1988
1989         # default to the dc232b cpu
1990         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1991         ;;
1992     esac
1993     : ${container_cross_cc:=${container_cross_prefix}gcc}
1994     : ${container_cross_ar:=${container_cross_prefix}ar}
1995     : ${container_cross_as:=${container_cross_prefix}as}
1996     : ${container_cross_ld:=${container_cross_prefix}ld}
1997     : ${container_cross_nm:=${container_cross_prefix}nm}
1998     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1999     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2000     : ${container_cross_strip:=${container_cross_prefix}strip}
2001   done
2002
2003   try=cross
2004   case "$target_arch:$cpu" in
2005     aarch64_be:aarch64 | \
2006     armeb:arm | \
2007     i386:x86_64 | \
2008     mips*:mips64 | \
2009     ppc*:ppc64 | \
2010     sparc:sparc64 | \
2011     "$cpu:$cpu")
2012       try='native cross' ;;
2013   esac
2014   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2015   for thistry in $try; do
2016     case $thistry in
2017     native)
2018       target_cc=$cc
2019       target_ccas=$ccas
2020       target_ar=$ar
2021       target_as=$as
2022       target_ld=$ld
2023       target_nm=$nm
2024       target_objcopy=$objcopy
2025       target_ranlib=$ranlib
2026       target_strip=$strip
2027       ;;
2028     cross)
2029       target_cc=
2030       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2031         if eval has "\"\${cross_cc_$target_arch}\""; then
2032           eval "target_cc=\"\${cross_cc_$target_arch}\""
2033         fi
2034       else
2035         compute_target_variable $target_arch target_cc gcc
2036       fi
2037       target_ccas=$target_cc
2038       compute_target_variable $target_arch target_ar ar
2039       compute_target_variable $target_arch target_as as
2040       compute_target_variable $target_arch target_ld ld
2041       compute_target_variable $target_arch target_nm nm
2042       compute_target_variable $target_arch target_objcopy objcopy
2043       compute_target_variable $target_arch target_ranlib ranlib
2044       compute_target_variable $target_arch target_strip strip
2045       ;;
2046     esac
2047
2048     if test -n "$target_cc"; then
2049       case $target_arch in
2050         i386|x86_64)
2051           if $target_cc --version | grep -qi "clang"; then
2052             continue
2053           fi
2054           ;;
2055       esac
2056     elif test -n "$target_as" && test -n "$target_ld"; then
2057       # Special handling for assembler only targets
2058       case $target in
2059         tricore-softmmu)
2060           build_static=
2061           got_cross_cc=yes
2062           break
2063           ;;
2064         *)
2065           continue
2066           ;;
2067       esac
2068     else
2069       continue
2070     fi
2071
2072     write_c_skeleton
2073     case $1 in
2074       *-softmmu)
2075         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2076           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2077           got_cross_cc=yes
2078           break
2079         fi
2080         ;;
2081       *)
2082         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2083           build_static=y
2084           got_cross_cc=yes
2085           break
2086         fi
2087         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2088           build_static=
2089           got_cross_cc=yes
2090           break
2091         fi
2092         ;;
2093     esac
2094   done
2095   if test $got_cross_cc != yes; then
2096     build_static=
2097     target_cc=
2098     target_ccas=
2099     target_ar=
2100     target_as=
2101     target_ld=
2102     target_nm=
2103     target_objcopy=
2104     target_ranlib=
2105     target_strip=
2106   fi
2107   test -n "$target_cc"
2108 }
2109
2110 write_target_makefile() {
2111   echo "EXTRA_CFLAGS=$target_cflags"
2112   if test -z "$target_cc" && test -z "$target_as"; then
2113     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2114     echo "$1: docker-image-$container_image" >> Makefile.prereqs
2115     if test -n "$container_cross_cc"; then
2116       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2117       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2118     fi
2119     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2120     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2121     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2122     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2123     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2124     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2125     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2126   else
2127     if test -n "$target_cc"; then
2128       echo "CC=$target_cc"
2129       echo "CCAS=$target_ccas"
2130     fi
2131     if test -n "$target_ar"; then
2132       echo "AR=$target_ar"
2133     fi
2134     if test -n "$target_as"; then
2135       echo "AS=$target_as"
2136     fi
2137     if test -n "$target_ld"; then
2138       echo "LD=$target_ld"
2139     fi
2140     if test -n "$target_nm"; then
2141       echo "NM=$target_nm"
2142     fi
2143     if test -n "$target_objcopy"; then
2144       echo "OBJCOPY=$target_objcopy"
2145     fi
2146     if test -n "$target_ranlib"; then
2147       echo "RANLIB=$target_ranlib"
2148     fi
2149     if test -n "$target_strip"; then
2150       echo "STRIP=$target_strip"
2151     fi
2152   fi
2153 }
2154
2155 ##########################################
2156 # check for vfio_user_server
2157
2158 case "$vfio_user_server" in
2159   enabled )
2160     if test "$git_submodules_action" != "ignore"; then
2161       git_submodules="${git_submodules} subprojects/libvfio-user"
2162     fi
2163     ;;
2164 esac
2165
2166 ##########################################
2167 # End of CC checks
2168 # After here, no more $cc or $ld runs
2169
2170 write_c_skeleton
2171
2172 if test "$fortify_source" = "yes" ; then
2173   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2174 fi
2175
2176 if test "$have_asan" = "yes"; then
2177   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2178   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2179   if test "$have_asan_iface_h" = "no" ; then
2180       echo "ASAN build enabled, but ASAN header missing." \
2181            "Without code annotation, the report may be inferior."
2182   elif test "$have_asan_iface_fiber" = "no" ; then
2183       echo "ASAN build enabled, but ASAN header is too old." \
2184            "Without code annotation, the report may be inferior."
2185   fi
2186 fi
2187 if test "$have_tsan" = "yes" ; then
2188   if test "$have_tsan_iface_fiber" = "yes" ; then
2189     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2190     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2191   else
2192     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2193   fi
2194 elif test "$tsan" = "yes" ; then
2195   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2196 fi
2197 if test "$have_ubsan" = "yes"; then
2198   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2199   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2200 fi
2201
2202 #######################################
2203 # cross-compiled firmware targets
2204
2205 # Set up build tree symlinks that point back into the source tree
2206 # (these can be both files and directories).
2207 # Caution: avoid adding files or directories here using wildcards. This
2208 # will result in problems later if a new file matching the wildcard is
2209 # added to the source tree -- nothing will cause configure to be rerun
2210 # so the build tree will be missing the link back to the new file, and
2211 # tests might fail. Prefer to keep the relevant files in their own
2212 # directory and symlink the directory instead.
2213 LINKS="Makefile"
2214 LINKS="$LINKS pc-bios/optionrom/Makefile"
2215 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2216 LINKS="$LINKS pc-bios/vof/Makefile"
2217 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2218 LINKS="$LINKS tests/avocado tests/data"
2219 LINKS="$LINKS tests/qemu-iotests/check"
2220 LINKS="$LINKS python"
2221 LINKS="$LINKS contrib/plugins/Makefile "
2222 for f in $LINKS ; do
2223     if [ -e "$source_path/$f" ]; then
2224         mkdir -p "$(dirname ./"$f")"
2225         symlink "$source_path/$f" "$f"
2226     fi
2227 done
2228
2229 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2230
2231 # Mac OS X ships with a broken assembler
2232 roms=
2233 if have_target i386-softmmu x86_64-softmmu && \
2234         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2235         test "$targetos" != "haiku" && \
2236         probe_target_compiler i386-softmmu; then
2237     roms="pc-bios/optionrom"
2238     config_mak=pc-bios/optionrom/config.mak
2239     echo "# Automatically generated by configure - do not modify" > $config_mak
2240     echo "TOPSRC_DIR=$source_path" >> $config_mak
2241     write_target_makefile >> $config_mak
2242 fi
2243
2244 if have_target ppc-softmmu ppc64-softmmu && \
2245         probe_target_compiler ppc-softmmu; then
2246     roms="$roms pc-bios/vof"
2247     config_mak=pc-bios/vof/config.mak
2248     echo "# Automatically generated by configure - do not modify" > $config_mak
2249     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2250     write_target_makefile >> $config_mak
2251 fi
2252
2253 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2254 # (which is the lowest architecture level that Clang supports)
2255 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2256   write_c_skeleton
2257   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2258   has_z900=$?
2259   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2260     if [ $has_z900 != 0 ]; then
2261       echo "WARNING: Your compiler does not support the z900!"
2262       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2263     fi
2264     roms="$roms pc-bios/s390-ccw"
2265     config_mak=pc-bios/s390-ccw/config-host.mak
2266     echo "# Automatically generated by configure - do not modify" > $config_mak
2267     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2268     write_target_makefile >> $config_mak
2269     # SLOF is required for building the s390-ccw firmware on s390x,
2270     # since it is using the libnet code from SLOF for network booting.
2271     git_submodules="${git_submodules} roms/SLOF"
2272   fi
2273 fi
2274
2275 #######################################
2276 # generate config-host.mak
2277
2278 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2279     exit 1
2280 fi
2281
2282 config_host_mak="config-host.mak"
2283
2284 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2285 echo >> $config_host_mak
2286
2287 echo all: >> $config_host_mak
2288 echo "GIT=$git" >> $config_host_mak
2289 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2290 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2291
2292 if test "$debug_tcg" = "yes" ; then
2293   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2294 fi
2295 if test "$mingw32" = "yes" ; then
2296   echo "CONFIG_WIN32=y" >> $config_host_mak
2297   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2298   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2299   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2300 else
2301   echo "CONFIG_POSIX=y" >> $config_host_mak
2302 fi
2303
2304 if test "$linux" = "yes" ; then
2305   echo "CONFIG_LINUX=y" >> $config_host_mak
2306 fi
2307
2308 if test "$darwin" = "yes" ; then
2309   echo "CONFIG_DARWIN=y" >> $config_host_mak
2310 fi
2311
2312 if test "$solaris" = "yes" ; then
2313   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2314 fi
2315 if test "$static" = "yes" ; then
2316   echo "CONFIG_STATIC=y" >> $config_host_mak
2317 fi
2318 echo "SRC_PATH=$source_path" >> $config_host_mak
2319 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2320 if test "$modules" = "yes"; then
2321   echo "CONFIG_MODULES=y" >> $config_host_mak
2322 fi
2323
2324 # XXX: suppress that
2325 if [ "$bsd" = "yes" ] ; then
2326   echo "CONFIG_BSD=y" >> $config_host_mak
2327 fi
2328
2329 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2330
2331 if test "$have_asan_iface_fiber" = "yes" ; then
2332     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2333 fi
2334
2335 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2336     echo "CONFIG_TSAN=y" >> $config_host_mak
2337 fi
2338
2339 if test "$plugins" = "yes" ; then
2340     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2341 fi
2342
2343 if test -n "$gdb_bin"; then
2344     gdb_version=$($gdb_bin --version | head -n 1)
2345     if version_ge ${gdb_version##* } 9.1; then
2346         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2347     else
2348         gdb_bin=""
2349     fi
2350 fi
2351
2352 if test "$container" != no; then
2353     echo "ENGINE=$container" >> $config_host_mak
2354 fi
2355 echo "ROMS=$roms" >> $config_host_mak
2356 echo "MAKE=$make" >> $config_host_mak
2357 echo "PYTHON=$python" >> $config_host_mak
2358 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2359 echo "MESON=$meson" >> $config_host_mak
2360 echo "NINJA=$ninja" >> $config_host_mak
2361 echo "CC=$cc" >> $config_host_mak
2362 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2363 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2364 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2365 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2366 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2367 echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak
2368 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2369 echo "EXESUF=$EXESUF" >> $config_host_mak
2370
2371 # use included Linux headers
2372 if test "$linux" = "yes" ; then
2373   mkdir -p linux-headers
2374   case "$cpu" in
2375   i386|x86_64)
2376     linux_arch=x86
2377     ;;
2378   ppc|ppc64)
2379     linux_arch=powerpc
2380     ;;
2381   s390x)
2382     linux_arch=s390
2383     ;;
2384   aarch64)
2385     linux_arch=arm64
2386     ;;
2387   loongarch*)
2388     linux_arch=loongarch
2389     ;;
2390   mips64)
2391     linux_arch=mips
2392     ;;
2393   *)
2394     # For most CPUs the kernel architecture name and QEMU CPU name match.
2395     linux_arch="$cpu"
2396     ;;
2397   esac
2398     # For non-KVM architectures we will not have asm headers
2399     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2400       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2401     fi
2402 fi
2403
2404 for target in $target_list; do
2405     target_dir="$target"
2406     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2407     mkdir -p "$target_dir"
2408     case $target in
2409         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2410         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2411     esac
2412 done
2413
2414 if test "$default_targets" = "yes"; then
2415   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2416 fi
2417
2418 if test "$ccache_cpp2" = "yes"; then
2419   echo "export CCACHE_CPP2=y" >> $config_host_mak
2420 fi
2421
2422 if test "$safe_stack" = "yes"; then
2423   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2424 fi
2425
2426 # tests/tcg configuration
2427 (config_host_mak=tests/tcg/config-host.mak
2428 mkdir -p tests/tcg
2429 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2430 echo "SRC_PATH=$source_path" >> $config_host_mak
2431 echo "HOST_CC=$host_cc" >> $config_host_mak
2432
2433 # versioned checked in the main config_host.mak above
2434 if test -n "$gdb_bin"; then
2435     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2436 fi
2437 if test "$plugins" = "yes" ; then
2438     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2439 fi
2440
2441 tcg_tests_targets=
2442 for target in $target_list; do
2443   arch=${target%%-*}
2444
2445   case $target in
2446     xtensa*-linux-user)
2447       # the toolchain is not complete with headers, only build softmmu tests
2448       continue
2449       ;;
2450     *-softmmu)
2451       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2452       qemu="qemu-system-$arch"
2453       ;;
2454     *-linux-user|*-bsd-user)
2455       qemu="qemu-$arch"
2456       ;;
2457   esac
2458
2459   if probe_target_compiler $target || test -n "$container_image"; then
2460       test -n "$container_image" && build_static=y
2461       mkdir -p "tests/tcg/$target"
2462       config_target_mak=tests/tcg/$target/config-target.mak
2463       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2464       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2465       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2466       echo "TARGET=$target" >> "$config_target_mak"
2467       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2468       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2469       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2470       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2471       tcg_tests_targets="$tcg_tests_targets $target"
2472   fi
2473 done
2474
2475 if test "$tcg" = "enabled"; then
2476     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2477 fi
2478 )
2479
2480 if test "$skip_meson" = no; then
2481   cross="config-meson.cross.new"
2482   meson_quote() {
2483     test $# = 0 && return
2484     echo "'$(echo $* | sed "s/ /','/g")'"
2485   }
2486
2487   echo "# Automatically generated by configure - do not modify" > $cross
2488   echo "[properties]" >> $cross
2489
2490   # unroll any custom device configs
2491   for a in $device_archs; do
2492       eval "c=\$devices_${a}"
2493       echo "${a}-softmmu = '$c'" >> $cross
2494   done
2495
2496   echo "[built-in options]" >> $cross
2497   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2498   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2499   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2500   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2501   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2502   echo "[binaries]" >> $cross
2503   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2504   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2505   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2506   echo "ar = [$(meson_quote $ar)]" >> $cross
2507   echo "nm = [$(meson_quote $nm)]" >> $cross
2508   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2509   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2510   if has $sdl2_config; then
2511     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2512   fi
2513   echo "strip = [$(meson_quote $strip)]" >> $cross
2514   echo "widl = [$(meson_quote $widl)]" >> $cross
2515   echo "windres = [$(meson_quote $windres)]" >> $cross
2516   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2517   if test "$cross_compile" = "yes"; then
2518     cross_arg="--cross-file config-meson.cross"
2519     echo "[host_machine]" >> $cross
2520     echo "system = '$targetos'" >> $cross
2521     case "$cpu" in
2522         i386)
2523             echo "cpu_family = 'x86'" >> $cross
2524             ;;
2525         *)
2526             echo "cpu_family = '$cpu'" >> $cross
2527             ;;
2528     esac
2529     echo "cpu = '$cpu'" >> $cross
2530     if test "$bigendian" = "yes" ; then
2531         echo "endian = 'big'" >> $cross
2532     else
2533         echo "endian = 'little'" >> $cross
2534     fi
2535   else
2536     cross_arg="--native-file config-meson.cross"
2537   fi
2538   mv $cross config-meson.cross
2539
2540   rm -rf meson-private meson-info meson-logs
2541
2542   # Built-in options
2543   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2544   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2545   test "$pie" = no && meson_option_add -Db_pie=false
2546   test "$werror" = yes && meson_option_add -Dwerror=true
2547
2548   # QEMU options
2549   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2550   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2551   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2552   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2553   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2554   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2555   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2556   run_meson() {
2557     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2558   }
2559   eval run_meson $meson_options
2560   if test "$?" -ne 0 ; then
2561       error_exit "meson setup failed"
2562   fi
2563 fi
2564
2565 # Save the configure command line for later reuse.
2566 cat <<EOD >config.status
2567 #!/bin/sh
2568 # Generated by configure.
2569 # Run this file to recreate the current configuration.
2570 # Compiler output produced by configure, useful for debugging
2571 # configure, is in config.log if it exists.
2572 EOD
2573
2574 preserve_env() {
2575     envname=$1
2576
2577     eval envval=\$$envname
2578
2579     if test -n "$envval"
2580     then
2581         echo "$envname='$envval'" >> config.status
2582         echo "export $envname" >> config.status
2583     else
2584         echo "unset $envname" >> config.status
2585     fi
2586 }
2587
2588 # Preserve various env variables that influence what
2589 # features/build target configure will detect
2590 preserve_env AR
2591 preserve_env AS
2592 preserve_env CC
2593 preserve_env CFLAGS
2594 preserve_env CXX
2595 preserve_env CXXFLAGS
2596 preserve_env LD
2597 preserve_env LDFLAGS
2598 preserve_env LD_LIBRARY_PATH
2599 preserve_env MAKE
2600 preserve_env NM
2601 preserve_env OBJCFLAGS
2602 preserve_env OBJCOPY
2603 preserve_env PATH
2604 preserve_env PKG_CONFIG
2605 preserve_env PKG_CONFIG_LIBDIR
2606 preserve_env PKG_CONFIG_PATH
2607 preserve_env PYTHON
2608 preserve_env QEMU_GA_MANUFACTURER
2609 preserve_env QEMU_GA_DISTRO
2610 preserve_env QEMU_GA_VERSION
2611 preserve_env SDL2_CONFIG
2612 preserve_env SMBD
2613 preserve_env STRIP
2614 preserve_env WIDL
2615 preserve_env WINDRES
2616 preserve_env WINDMC
2617
2618 printf "exec" >>config.status
2619 for i in "$0" "$@"; do
2620   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2621 done
2622 echo ' "$@"' >>config.status
2623 chmod +x config.status
2624
2625 rm -r "$TMPDIR1"