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 >= 3.7 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__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1142 #   error You need at least XCode Clang v10.0 to compile QEMU
1143 #  endif
1144 # else
1145 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1146 #   error You need at least Clang v6.0 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 v6.0 (or XCode Clang v10.0)"
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
1187 nowarn_flags=
1188 add_to nowarn_flags -Wno-initializer-overrides
1189 add_to nowarn_flags -Wno-missing-include-dirs
1190 add_to nowarn_flags -Wno-shift-negative-value
1191 add_to nowarn_flags -Wno-string-plus-int
1192 add_to nowarn_flags -Wno-typedef-redefinition
1193 add_to nowarn_flags -Wno-tautological-type-limit-compare
1194 add_to nowarn_flags -Wno-psabi
1195 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1196
1197 gcc_flags="$warn_flags $nowarn_flags"
1198
1199 cc_has_warning_flag() {
1200     write_c_skeleton;
1201
1202     # Use the positive sense of the flag when testing for -Wno-wombat
1203     # support (gcc will happily accept the -Wno- form of unknown
1204     # warning options).
1205     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1206     compile_prog "-Werror $optflag" ""
1207 }
1208
1209 objcc_has_warning_flag() {
1210     cat > $TMPM <<EOF
1211 int main(void) { return 0; }
1212 EOF
1213
1214     # Use the positive sense of the flag when testing for -Wno-wombat
1215     # support (gcc will happily accept the -Wno- form of unknown
1216     # warning options).
1217     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1218     do_objc -Werror $optflag \
1219       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1220       -o $TMPE $TMPM $QEMU_LDFLAGS
1221 }
1222
1223 for flag in $gcc_flags; do
1224     if cc_has_warning_flag $flag ; then
1225         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1226     fi
1227     if objcc_has_warning_flag $flag ; then
1228         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1229     fi
1230 done
1231
1232 if test "$stack_protector" != "no"; then
1233   cat > $TMPC << EOF
1234 int main(int argc, char *argv[])
1235 {
1236     char arr[64], *p = arr, *c = argv[argc - 1];
1237     while (*c) {
1238         *p++ = *c++;
1239     }
1240     return 0;
1241 }
1242 EOF
1243   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1244   sp_on=0
1245   for flag in $gcc_flags; do
1246     # We need to check both a compile and a link, since some compiler
1247     # setups fail only on a .c->.o compile and some only at link time
1248     if compile_object "-Werror $flag" &&
1249        compile_prog "-Werror $flag" ""; then
1250       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1251       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1252       sp_on=1
1253       break
1254     fi
1255   done
1256   if test "$stack_protector" = yes; then
1257     if test $sp_on = 0; then
1258       error_exit "Stack protector not supported"
1259     fi
1260   fi
1261 fi
1262
1263 # Disable -Wmissing-braces on older compilers that warn even for
1264 # the "universal" C zero initializer {0}.
1265 cat > $TMPC << EOF
1266 struct {
1267   int a[2];
1268 } x = {0};
1269 EOF
1270 if compile_object "-Werror" "" ; then
1271   :
1272 else
1273   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1274 fi
1275
1276 # Our module code doesn't support Windows
1277 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1278   error_exit "Modules are not available for Windows"
1279 fi
1280
1281 # Static linking is not possible with plugins, modules or PIE
1282 if test "$static" = "yes" ; then
1283   if test "$modules" = "yes" ; then
1284     error_exit "static and modules are mutually incompatible"
1285   fi
1286   if test "$plugins" = "yes"; then
1287     error_exit "static and plugins are mutually incompatible"
1288   else
1289     plugins="no"
1290   fi
1291 fi
1292 test "$plugins" = "" && plugins=yes
1293
1294 cat > $TMPC << EOF
1295
1296 #ifdef __linux__
1297 #  define THREAD __thread
1298 #else
1299 #  define THREAD
1300 #endif
1301 static THREAD int tls_var;
1302 int main(void) { return tls_var; }
1303 EOF
1304
1305 # Meson currently only handles pie as a boolean for now so if we have
1306 # explicitly disabled PIE we need to extend our cflags because it wont.
1307 if test "$static" = "yes"; then
1308   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1309     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1310     pie="yes"
1311   elif test "$pie" = "yes"; then
1312     error_exit "-static-pie not available due to missing toolchain support"
1313   else
1314     pie="no"
1315     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1316   fi
1317 elif test "$pie" = "no"; then
1318   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1319     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1320     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1321     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1322   fi
1323 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1324   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1325   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1326   pie="yes"
1327 elif test "$pie" = "yes"; then
1328   error_exit "PIE not available due to missing toolchain support"
1329 else
1330   echo "Disabling PIE due to missing toolchain support"
1331   pie="no"
1332 fi
1333
1334 ##########################################
1335 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1336 # use i686 as default anyway, but for those that don't, an explicit
1337 # specification is necessary
1338
1339 if test "$cpu" = "i386"; then
1340   cat > $TMPC << EOF
1341 static int sfaa(int *ptr)
1342 {
1343   return __sync_fetch_and_and(ptr, 0);
1344 }
1345
1346 int main(void)
1347 {
1348   int val = 42;
1349   val = __sync_val_compare_and_swap(&val, 0, 1);
1350   sfaa(&val);
1351   return val;
1352 }
1353 EOF
1354   if ! compile_prog "" "" ; then
1355     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1356   fi
1357 fi
1358
1359 if test -z "${target_list+xxx}" ; then
1360     default_targets=yes
1361     for target in $default_target_list; do
1362         target_list="$target_list $target"
1363     done
1364     target_list="${target_list# }"
1365 else
1366     default_targets=no
1367     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1368     for target in $target_list; do
1369         # Check that we recognised the target name; this allows a more
1370         # friendly error message than if we let it fall through.
1371         case " $default_target_list " in
1372             *" $target "*)
1373                 ;;
1374             *)
1375                 error_exit "Unknown target name '$target'"
1376                 ;;
1377         esac
1378     done
1379 fi
1380
1381 # see if system emulation was really requested
1382 case " $target_list " in
1383   *"-softmmu "*) softmmu=yes
1384   ;;
1385   *) softmmu=no
1386   ;;
1387 esac
1388
1389 if test "$tcg" = "auto"; then
1390   if test -z "$target_list"; then
1391     tcg="disabled"
1392   else
1393     tcg="enabled"
1394   fi
1395 fi
1396
1397 if test "$tcg" = "enabled"; then
1398     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1399     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1400 fi
1401
1402 ##########################################
1403 # big/little endian test
1404 cat > $TMPC << EOF
1405 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1406 # error LITTLE
1407 #endif
1408 int main(void) { return 0; }
1409 EOF
1410
1411 if ! compile_prog ; then
1412   bigendian="no"
1413 else
1414   cat > $TMPC << EOF
1415 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1416 # error BIG
1417 #endif
1418 int main(void) { return 0; }
1419 EOF
1420
1421   if ! compile_prog ; then
1422     bigendian="yes"
1423   else
1424     echo big/little test failed
1425     exit 1
1426   fi
1427 fi
1428
1429 ##########################################
1430 # pkg-config probe
1431
1432 if ! has "$pkg_config_exe"; then
1433   error_exit "pkg-config binary '$pkg_config_exe' not found"
1434 fi
1435
1436 ##########################################
1437 # glib support probe
1438
1439 # When bumping glib_req_ver, please check also whether we should increase
1440 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1441 glib_req_ver=2.56
1442 glib_modules=gthread-2.0
1443 if test "$modules" = yes; then
1444     glib_modules="$glib_modules gmodule-export-2.0"
1445 elif test "$plugins" = "yes"; then
1446     glib_modules="$glib_modules gmodule-no-export-2.0"
1447 fi
1448
1449 for i in $glib_modules; do
1450     if $pkg_config --atleast-version=$glib_req_ver $i; then
1451         glib_cflags=$($pkg_config --cflags $i)
1452         glib_libs=$($pkg_config --libs $i)
1453     else
1454         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1455     fi
1456 done
1457
1458 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1459 if test -z "$glib_bindir" ; then
1460         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1461 fi
1462
1463 # This workaround is required due to a bug in pkg-config file for glib as it
1464 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1465
1466 if test "$static" = yes && test "$mingw32" = yes; then
1467     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1468 fi
1469
1470 # Sanity check that the current size_t matches the
1471 # size that glib thinks it should be. This catches
1472 # problems on multi-arch where people try to build
1473 # 32-bit QEMU while pointing at 64-bit glib headers
1474 cat > $TMPC <<EOF
1475 #include <glib.h>
1476 #include <unistd.h>
1477
1478 #define QEMU_BUILD_BUG_ON(x) \
1479   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1480
1481 int main(void) {
1482    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1483    return 0;
1484 }
1485 EOF
1486
1487 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1488     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1489                "You probably need to set PKG_CONFIG_LIBDIR"\
1490                "to point to the right pkg-config files for your"\
1491                "build target"
1492 fi
1493
1494 # Silence clang warnings triggered by glib < 2.57.2
1495 cat > $TMPC << EOF
1496 #include <glib.h>
1497 typedef struct Foo {
1498     int i;
1499 } Foo;
1500 static void foo_free(Foo *f)
1501 {
1502     g_free(f);
1503 }
1504 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1505 int main(void) { return 0; }
1506 EOF
1507 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1508     if cc_has_warning_flag "-Wno-unused-function"; then
1509         glib_cflags="$glib_cflags -Wno-unused-function"
1510         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1511     fi
1512 fi
1513
1514 ##########################################
1515 # fdt probe
1516
1517 case "$fdt" in
1518   auto | enabled | internal)
1519     # Simpler to always update submodule, even if not needed.
1520     git_submodules="${git_submodules} dtc"
1521     ;;
1522 esac
1523
1524 ##########################################
1525 # check and set a backend for coroutine
1526
1527 # We prefer ucontext, but it's not always possible. The fallback
1528 # is sigcontext. On Windows the only valid backend is the Windows
1529 # specific one.
1530
1531 ucontext_works=no
1532 if test "$darwin" != "yes"; then
1533   cat > $TMPC << EOF
1534 #include <ucontext.h>
1535 #ifdef __stub_makecontext
1536 #error Ignoring glibc stub makecontext which will always fail
1537 #endif
1538 int main(void) { makecontext(0, 0, 0); return 0; }
1539 EOF
1540   if compile_prog "" "" ; then
1541     ucontext_works=yes
1542   fi
1543 fi
1544
1545 if test "$coroutine" = ""; then
1546   if test "$mingw32" = "yes"; then
1547     coroutine=win32
1548   elif test "$ucontext_works" = "yes"; then
1549     coroutine=ucontext
1550   else
1551     coroutine=sigaltstack
1552   fi
1553 else
1554   case $coroutine in
1555   windows)
1556     if test "$mingw32" != "yes"; then
1557       error_exit "'windows' coroutine backend only valid for Windows"
1558     fi
1559     # Unfortunately the user visible backend name doesn't match the
1560     # coroutine-*.c filename for this case, so we have to adjust it here.
1561     coroutine=win32
1562     ;;
1563   ucontext)
1564     if test "$ucontext_works" != "yes"; then
1565       error_exit "'ucontext' backend requested but makecontext not available"
1566     fi
1567     ;;
1568   sigaltstack)
1569     if test "$mingw32" = "yes"; then
1570       error_exit "only the 'windows' coroutine backend is valid for Windows"
1571     fi
1572     ;;
1573   *)
1574     error_exit "unknown coroutine backend $coroutine"
1575     ;;
1576   esac
1577 fi
1578
1579 ##################################################
1580 # SafeStack
1581
1582
1583 if test "$safe_stack" = "yes"; then
1584 cat > $TMPC << EOF
1585 int main(void)
1586 {
1587 #if ! __has_feature(safe_stack)
1588 #error SafeStack Disabled
1589 #endif
1590     return 0;
1591 }
1592 EOF
1593   flag="-fsanitize=safe-stack"
1594   # Check that safe-stack is supported and enabled.
1595   if compile_prog "-Werror $flag" "$flag"; then
1596     # Flag needed both at compilation and at linking
1597     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1598     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1599   else
1600     error_exit "SafeStack not supported by your compiler"
1601   fi
1602   if test "$coroutine" != "ucontext"; then
1603     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1604   fi
1605 else
1606 cat > $TMPC << EOF
1607 int main(void)
1608 {
1609 #if defined(__has_feature)
1610 #if __has_feature(safe_stack)
1611 #error SafeStack Enabled
1612 #endif
1613 #endif
1614     return 0;
1615 }
1616 EOF
1617 if test "$safe_stack" = "no"; then
1618   # Make sure that safe-stack is disabled
1619   if ! compile_prog "-Werror" ""; then
1620     # SafeStack was already enabled, try to explicitly remove the feature
1621     flag="-fno-sanitize=safe-stack"
1622     if ! compile_prog "-Werror $flag" "$flag"; then
1623       error_exit "Configure cannot disable SafeStack"
1624     fi
1625     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1626     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1627   fi
1628 else # "$safe_stack" = ""
1629   # Set safe_stack to yes or no based on pre-existing flags
1630   if compile_prog "-Werror" ""; then
1631     safe_stack="no"
1632   else
1633     safe_stack="yes"
1634     if test "$coroutine" != "ucontext"; then
1635       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1636     fi
1637   fi
1638 fi
1639 fi
1640
1641 ########################################
1642 # check if ccache is interfering with
1643 # semantic analysis of macros
1644
1645 unset CCACHE_CPP2
1646 ccache_cpp2=no
1647 cat > $TMPC << EOF
1648 static const int Z = 1;
1649 #define fn() ({ Z; })
1650 #define TAUT(X) ((X) == Z)
1651 #define PAREN(X, Y) (X == Y)
1652 #define ID(X) (X)
1653 int main(void)
1654 {
1655     int x = 0, y = 0;
1656     x = ID(x);
1657     x = fn();
1658     fn();
1659     if (PAREN(x, y)) return 0;
1660     if (TAUT(Z)) return 0;
1661     return 0;
1662 }
1663 EOF
1664
1665 if ! compile_object "-Werror"; then
1666     ccache_cpp2=yes
1667 fi
1668
1669 #################################################
1670 # clang does not support glibc + FORTIFY_SOURCE.
1671
1672 if test "$fortify_source" != "no"; then
1673   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1674     fortify_source="no";
1675   elif test -n "$cxx" && has $cxx &&
1676        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1677     fortify_source="no";
1678   else
1679     fortify_source="yes"
1680   fi
1681 fi
1682
1683 ##########################################
1684 # checks for sanitizers
1685
1686 have_asan=no
1687 have_ubsan=no
1688 have_asan_iface_h=no
1689 have_asan_iface_fiber=no
1690
1691 if test "$sanitizers" = "yes" ; then
1692   write_c_skeleton
1693   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1694       have_asan=yes
1695   fi
1696
1697   # we could use a simple skeleton for flags checks, but this also
1698   # detect the static linking issue of ubsan, see also:
1699   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1700   cat > $TMPC << EOF
1701 #include <stdlib.h>
1702 int main(void) {
1703     void *tmp = malloc(10);
1704     if (tmp != NULL) {
1705         return *(int *)(tmp + 2);
1706     }
1707     return 1;
1708 }
1709 EOF
1710   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1711       have_ubsan=yes
1712   fi
1713
1714   if check_include "sanitizer/asan_interface.h" ; then
1715       have_asan_iface_h=yes
1716   fi
1717
1718   cat > $TMPC << EOF
1719 #include <sanitizer/asan_interface.h>
1720 int main(void) {
1721   __sanitizer_start_switch_fiber(0, 0, 0);
1722   return 0;
1723 }
1724 EOF
1725   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1726       have_asan_iface_fiber=yes
1727   fi
1728 fi
1729
1730 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1731 # keep it separate until that is not the case.
1732 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1733   error_exit "TSAN is not supported with other sanitiziers."
1734 fi
1735 have_tsan=no
1736 have_tsan_iface_fiber=no
1737 if test "$tsan" = "yes" ; then
1738   write_c_skeleton
1739   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1740       have_tsan=yes
1741   fi
1742   cat > $TMPC << EOF
1743 #include <sanitizer/tsan_interface.h>
1744 int main(void) {
1745   __tsan_create_fiber(0);
1746   return 0;
1747 }
1748 EOF
1749   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1750       have_tsan_iface_fiber=yes
1751   fi
1752 fi
1753
1754 ##########################################
1755 # functions to probe cross compilers
1756
1757 container="no"
1758 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1759     case $($python "$source_path"/tests/docker/docker.py probe) in
1760         *docker) container=docker ;;
1761         podman) container=podman ;;
1762         no) container=no ;;
1763     esac
1764     if test "$container" != "no"; then
1765         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1766     fi
1767 fi
1768
1769 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1770 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1771 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1772 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1773 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1774 : ${cross_prefix_armeb="$cross_prefix_arm"}
1775 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1776 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1777 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1778 : ${cross_prefix_i386="i686-linux-gnu-"}
1779 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1780 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1781 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1782 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1783 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1784 : ${cross_prefix_mips="mips-linux-gnu-"}
1785 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1786 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1787 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1788 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1789 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1790 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1791 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1792 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1793 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1794 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1795
1796 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1797 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1798 : ${cross_cc_armeb="$cross_cc_arm"}
1799 : ${cross_cc_cflags_armeb="-mbig-endian"}
1800 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1801 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1802 : ${cross_cc_cflags_i386="-m32"}
1803 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1804 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1805 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1806 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1807 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1808 : ${cross_cc_sparc="$cross_cc_sparc64"}
1809 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1810 : ${cross_cc_cflags_x86_64="-m64"}
1811
1812 compute_target_variable() {
1813   eval "$2="
1814   if eval test -n "\"\${cross_prefix_$1}\""; then
1815     if eval has "\"\${cross_prefix_$1}\$3\""; then
1816       eval "$2=\"\${cross_prefix_$1}\$3\""
1817     fi
1818   fi
1819 }
1820
1821 have_target() {
1822   for i; do
1823     case " $target_list " in
1824       *" $i "*) return 0;;
1825       *) ;;
1826     esac
1827   done
1828   return 1
1829 }
1830
1831 # probe_target_compiler TARGET
1832 #
1833 # Look for a compiler for the given target, either native or cross.
1834 # Set variables target_* if a compiler is found, and container_cross_*
1835 # if a Docker-based cross-compiler image is known for the target.
1836 # Set got_cross_cc to yes/no depending on whether a non-container-based
1837 # compiler was found.
1838 #
1839 # If TARGET is a user-mode emulation target, also set build_static to
1840 # "y" if static linking is possible.
1841 #
1842 probe_target_compiler() {
1843   # reset all output variables
1844   got_cross_cc=no
1845   container_image=
1846   container_hosts=
1847   container_cross_cc=
1848   container_cross_ar=
1849   container_cross_as=
1850   container_cross_ld=
1851   container_cross_nm=
1852   container_cross_objcopy=
1853   container_cross_ranlib=
1854   container_cross_strip=
1855
1856   # We shall skip configuring the target compiler if the user didn't
1857   # bother enabling an appropriate guest. This avoids building
1858   # extraneous firmware images and tests.
1859   if test "${target_list#*$1}" = "$1"; then
1860       return 1
1861   fi
1862
1863   target_arch=${1%%-*}
1864   case $target_arch in
1865     aarch64) container_hosts="x86_64 aarch64" ;;
1866     alpha) container_hosts=x86_64 ;;
1867     arm) container_hosts="x86_64 aarch64" ;;
1868     cris) container_hosts=x86_64 ;;
1869     hexagon) container_hosts=x86_64 ;;
1870     hppa) container_hosts=x86_64 ;;
1871     i386) container_hosts=x86_64 ;;
1872     loongarch64) container_hosts=x86_64 ;;
1873     m68k) container_hosts=x86_64 ;;
1874     microblaze) container_hosts=x86_64 ;;
1875     mips64el) container_hosts=x86_64 ;;
1876     mips64) container_hosts=x86_64 ;;
1877     mipsel) container_hosts=x86_64 ;;
1878     mips) container_hosts=x86_64 ;;
1879     nios2) container_hosts=x86_64 ;;
1880     ppc) container_hosts=x86_64 ;;
1881     ppc64|ppc64le) container_hosts=x86_64 ;;
1882     riscv64) container_hosts=x86_64 ;;
1883     s390x) container_hosts=x86_64 ;;
1884     sh4) container_hosts=x86_64 ;;
1885     sparc64) container_hosts=x86_64 ;;
1886     tricore) container_hosts=x86_64 ;;
1887     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1888     xtensa*) container_hosts=x86_64 ;;
1889   esac
1890
1891   for host in $container_hosts; do
1892     test "$container" != no || continue
1893     test "$host" = "$cpu" || continue
1894     case $target_arch in
1895       aarch64)
1896         # We don't have any bigendian build tools so we only use this for AArch64
1897         container_image=debian-arm64-cross
1898         container_cross_prefix=aarch64-linux-gnu-
1899         container_cross_cc=${container_cross_prefix}gcc-10
1900         ;;
1901       alpha)
1902         container_image=debian-alpha-cross
1903         container_cross_prefix=alpha-linux-gnu-
1904         ;;
1905       arm)
1906         # We don't have any bigendian build tools so we only use this for ARM
1907         container_image=debian-armhf-cross
1908         container_cross_prefix=arm-linux-gnueabihf-
1909         ;;
1910       cris)
1911         container_image=fedora-cris-cross
1912         container_cross_prefix=cris-linux-gnu-
1913         ;;
1914       hexagon)
1915         container_image=debian-hexagon-cross
1916         container_cross_prefix=hexagon-unknown-linux-musl-
1917         container_cross_cc=${container_cross_prefix}clang
1918         ;;
1919       hppa)
1920         container_image=debian-hppa-cross
1921         container_cross_prefix=hppa-linux-gnu-
1922         ;;
1923       i386)
1924         container_image=fedora-i386-cross
1925         container_cross_prefix=
1926         ;;
1927       loongarch64)
1928         container_image=debian-loongarch-cross
1929         container_cross_prefix=loongarch64-unknown-linux-gnu-
1930         ;;
1931       m68k)
1932         container_image=debian-m68k-cross
1933         container_cross_prefix=m68k-linux-gnu-
1934         ;;
1935       microblaze)
1936         container_image=debian-microblaze-cross
1937         container_cross_prefix=microblaze-linux-musl-
1938         ;;
1939       mips64el)
1940         container_image=debian-mips64el-cross
1941         container_cross_prefix=mips64el-linux-gnuabi64-
1942         ;;
1943       mips64)
1944         container_image=debian-mips64-cross
1945         container_cross_prefix=mips64-linux-gnuabi64-
1946         ;;
1947       mipsel)
1948         container_image=debian-mipsel-cross
1949         container_cross_prefix=mipsel-linux-gnu-
1950         ;;
1951       mips)
1952         container_image=debian-mips-cross
1953         container_cross_prefix=mips-linux-gnu-
1954         ;;
1955       nios2)
1956         container_image=debian-nios2-cross
1957         container_cross_prefix=nios2-linux-gnu-
1958         ;;
1959       ppc)
1960         container_image=debian-powerpc-test-cross
1961         container_cross_prefix=powerpc-linux-gnu-
1962         container_cross_cc=${container_cross_prefix}gcc-10
1963         ;;
1964       ppc64|ppc64le)
1965         container_image=debian-powerpc-test-cross
1966         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1967         container_cross_cc=${container_cross_prefix}gcc-10
1968         ;;
1969       riscv64)
1970         container_image=debian-riscv64-test-cross
1971         container_cross_prefix=riscv64-linux-gnu-
1972         ;;
1973       s390x)
1974         container_image=debian-s390x-cross
1975         container_cross_prefix=s390x-linux-gnu-
1976         ;;
1977       sh4)
1978         container_image=debian-sh4-cross
1979         container_cross_prefix=sh4-linux-gnu-
1980         ;;
1981       sparc64)
1982         container_image=debian-sparc64-cross
1983         container_cross_prefix=sparc64-linux-gnu-
1984         ;;
1985       tricore)
1986         container_image=debian-tricore-cross
1987         container_cross_prefix=tricore-
1988         container_cross_as=tricore-as
1989         container_cross_ld=tricore-ld
1990         break
1991         ;;
1992       x86_64)
1993         container_image=debian-amd64-cross
1994         container_cross_prefix=x86_64-linux-gnu-
1995         ;;
1996       xtensa*)
1997         container_hosts=x86_64
1998         container_image=debian-xtensa-cross
1999
2000         # default to the dc232b cpu
2001         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2002         ;;
2003     esac
2004     : ${container_cross_cc:=${container_cross_prefix}gcc}
2005     : ${container_cross_ar:=${container_cross_prefix}ar}
2006     : ${container_cross_as:=${container_cross_prefix}as}
2007     : ${container_cross_ld:=${container_cross_prefix}ld}
2008     : ${container_cross_nm:=${container_cross_prefix}nm}
2009     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2010     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2011     : ${container_cross_strip:=${container_cross_prefix}strip}
2012   done
2013
2014   try=cross
2015   case "$target_arch:$cpu" in
2016     aarch64_be:aarch64 | \
2017     armeb:arm | \
2018     i386:x86_64 | \
2019     mips*:mips64 | \
2020     ppc*:ppc64 | \
2021     sparc:sparc64 | \
2022     "$cpu:$cpu")
2023       try='native cross' ;;
2024   esac
2025   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2026   for thistry in $try; do
2027     case $thistry in
2028     native)
2029       target_cc=$cc
2030       target_ccas=$ccas
2031       target_ar=$ar
2032       target_as=$as
2033       target_ld=$ld
2034       target_nm=$nm
2035       target_objcopy=$objcopy
2036       target_ranlib=$ranlib
2037       target_strip=$strip
2038       ;;
2039     cross)
2040       target_cc=
2041       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2042         if eval has "\"\${cross_cc_$target_arch}\""; then
2043           eval "target_cc=\"\${cross_cc_$target_arch}\""
2044         fi
2045       else
2046         compute_target_variable $target_arch target_cc gcc
2047       fi
2048       target_ccas=$target_cc
2049       compute_target_variable $target_arch target_ar ar
2050       compute_target_variable $target_arch target_as as
2051       compute_target_variable $target_arch target_ld ld
2052       compute_target_variable $target_arch target_nm nm
2053       compute_target_variable $target_arch target_objcopy objcopy
2054       compute_target_variable $target_arch target_ranlib ranlib
2055       compute_target_variable $target_arch target_strip strip
2056       ;;
2057     esac
2058
2059     if test -n "$target_cc"; then
2060       case $target_arch in
2061         i386|x86_64)
2062           if $target_cc --version | grep -qi "clang"; then
2063             continue
2064           fi
2065           ;;
2066       esac
2067     elif test -n "$target_as" && test -n "$target_ld"; then
2068       # Special handling for assembler only targets
2069       case $target in
2070         tricore-softmmu)
2071           build_static=
2072           got_cross_cc=yes
2073           break
2074           ;;
2075         *)
2076           continue
2077           ;;
2078       esac
2079     else
2080       continue
2081     fi
2082
2083     write_c_skeleton
2084     case $1 in
2085       *-softmmu)
2086         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2087           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2088           got_cross_cc=yes
2089           break
2090         fi
2091         ;;
2092       *)
2093         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2094           build_static=y
2095           got_cross_cc=yes
2096           break
2097         fi
2098         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2099           build_static=
2100           got_cross_cc=yes
2101           break
2102         fi
2103         ;;
2104     esac
2105   done
2106   if test $got_cross_cc != yes; then
2107     build_static=
2108     target_cc=
2109     target_ccas=
2110     target_ar=
2111     target_as=
2112     target_ld=
2113     target_nm=
2114     target_objcopy=
2115     target_ranlib=
2116     target_strip=
2117   fi
2118   test -n "$target_cc"
2119 }
2120
2121 write_target_makefile() {
2122   echo "EXTRA_CFLAGS=$target_cflags"
2123   if test -z "$target_cc" && test -z "$target_as"; then
2124     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2125     echo "$1: docker-image-$container_image" >> Makefile.prereqs
2126     if test -n "$container_cross_cc"; then
2127       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2128       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2129     fi
2130     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2131     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2132     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2133     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2134     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2135     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2136     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2137   else
2138     if test -n "$target_cc"; then
2139       echo "CC=$target_cc"
2140       echo "CCAS=$target_ccas"
2141     fi
2142     if test -n "$target_ar"; then
2143       echo "AR=$target_ar"
2144     fi
2145     if test -n "$target_as"; then
2146       echo "AS=$target_as"
2147     fi
2148     if test -n "$target_ld"; then
2149       echo "LD=$target_ld"
2150     fi
2151     if test -n "$target_nm"; then
2152       echo "NM=$target_nm"
2153     fi
2154     if test -n "$target_objcopy"; then
2155       echo "OBJCOPY=$target_objcopy"
2156     fi
2157     if test -n "$target_ranlib"; then
2158       echo "RANLIB=$target_ranlib"
2159     fi
2160     if test -n "$target_strip"; then
2161       echo "STRIP=$target_strip"
2162     fi
2163   fi
2164 }
2165
2166 ##########################################
2167 # check for vfio_user_server
2168
2169 case "$vfio_user_server" in
2170   enabled )
2171     if test "$git_submodules_action" != "ignore"; then
2172       git_submodules="${git_submodules} subprojects/libvfio-user"
2173     fi
2174     ;;
2175 esac
2176
2177 ##########################################
2178 # End of CC checks
2179 # After here, no more $cc or $ld runs
2180
2181 write_c_skeleton
2182
2183 if test "$fortify_source" = "yes" ; then
2184   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2185 fi
2186
2187 if test "$have_asan" = "yes"; then
2188   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2189   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2190   if test "$have_asan_iface_h" = "no" ; then
2191       echo "ASAN build enabled, but ASAN header missing." \
2192            "Without code annotation, the report may be inferior."
2193   elif test "$have_asan_iface_fiber" = "no" ; then
2194       echo "ASAN build enabled, but ASAN header is too old." \
2195            "Without code annotation, the report may be inferior."
2196   fi
2197 fi
2198 if test "$have_tsan" = "yes" ; then
2199   if test "$have_tsan_iface_fiber" = "yes" ; then
2200     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2201     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2202   else
2203     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2204   fi
2205 elif test "$tsan" = "yes" ; then
2206   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2207 fi
2208 if test "$have_ubsan" = "yes"; then
2209   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2210   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2211 fi
2212
2213 #######################################
2214 # cross-compiled firmware targets
2215
2216 # Set up build tree symlinks that point back into the source tree
2217 # (these can be both files and directories).
2218 # Caution: avoid adding files or directories here using wildcards. This
2219 # will result in problems later if a new file matching the wildcard is
2220 # added to the source tree -- nothing will cause configure to be rerun
2221 # so the build tree will be missing the link back to the new file, and
2222 # tests might fail. Prefer to keep the relevant files in their own
2223 # directory and symlink the directory instead.
2224 LINKS="Makefile"
2225 LINKS="$LINKS pc-bios/optionrom/Makefile"
2226 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2227 LINKS="$LINKS pc-bios/vof/Makefile"
2228 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2229 LINKS="$LINKS tests/avocado tests/data"
2230 LINKS="$LINKS tests/qemu-iotests/check"
2231 LINKS="$LINKS python"
2232 LINKS="$LINKS contrib/plugins/Makefile "
2233 for f in $LINKS ; do
2234     if [ -e "$source_path/$f" ]; then
2235         mkdir -p "$(dirname ./"$f")"
2236         symlink "$source_path/$f" "$f"
2237     fi
2238 done
2239
2240 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2241
2242 # Mac OS X ships with a broken assembler
2243 roms=
2244 if have_target i386-softmmu x86_64-softmmu && \
2245         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2246         test "$targetos" != "haiku" && \
2247         probe_target_compiler i386-softmmu; then
2248     roms="pc-bios/optionrom"
2249     config_mak=pc-bios/optionrom/config.mak
2250     echo "# Automatically generated by configure - do not modify" > $config_mak
2251     echo "TOPSRC_DIR=$source_path" >> $config_mak
2252     write_target_makefile >> $config_mak
2253 fi
2254
2255 if have_target ppc-softmmu ppc64-softmmu && \
2256         probe_target_compiler ppc-softmmu; then
2257     roms="$roms pc-bios/vof"
2258     config_mak=pc-bios/vof/config.mak
2259     echo "# Automatically generated by configure - do not modify" > $config_mak
2260     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2261     write_target_makefile >> $config_mak
2262 fi
2263
2264 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2265 # (which is the lowest architecture level that Clang supports)
2266 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2267   write_c_skeleton
2268   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2269   has_z900=$?
2270   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2271     if [ $has_z900 != 0 ]; then
2272       echo "WARNING: Your compiler does not support the z900!"
2273       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2274     fi
2275     roms="$roms pc-bios/s390-ccw"
2276     config_mak=pc-bios/s390-ccw/config-host.mak
2277     echo "# Automatically generated by configure - do not modify" > $config_mak
2278     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2279     write_target_makefile >> $config_mak
2280     # SLOF is required for building the s390-ccw firmware on s390x,
2281     # since it is using the libnet code from SLOF for network booting.
2282     git_submodules="${git_submodules} roms/SLOF"
2283   fi
2284 fi
2285
2286 #######################################
2287 # generate config-host.mak
2288
2289 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2290     exit 1
2291 fi
2292
2293 config_host_mak="config-host.mak"
2294
2295 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2296 echo >> $config_host_mak
2297
2298 echo all: >> $config_host_mak
2299 echo "GIT=$git" >> $config_host_mak
2300 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2301 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2302
2303 if test "$debug_tcg" = "yes" ; then
2304   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2305 fi
2306 if test "$mingw32" = "yes" ; then
2307   echo "CONFIG_WIN32=y" >> $config_host_mak
2308   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2309   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2310   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2311 else
2312   echo "CONFIG_POSIX=y" >> $config_host_mak
2313 fi
2314
2315 if test "$linux" = "yes" ; then
2316   echo "CONFIG_LINUX=y" >> $config_host_mak
2317 fi
2318
2319 if test "$darwin" = "yes" ; then
2320   echo "CONFIG_DARWIN=y" >> $config_host_mak
2321 fi
2322
2323 if test "$solaris" = "yes" ; then
2324   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2325 fi
2326 if test "$static" = "yes" ; then
2327   echo "CONFIG_STATIC=y" >> $config_host_mak
2328 fi
2329 echo "SRC_PATH=$source_path" >> $config_host_mak
2330 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2331 if test "$modules" = "yes"; then
2332   echo "CONFIG_MODULES=y" >> $config_host_mak
2333 fi
2334
2335 # XXX: suppress that
2336 if [ "$bsd" = "yes" ] ; then
2337   echo "CONFIG_BSD=y" >> $config_host_mak
2338 fi
2339
2340 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2341
2342 if test "$have_asan_iface_fiber" = "yes" ; then
2343     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2344 fi
2345
2346 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2347     echo "CONFIG_TSAN=y" >> $config_host_mak
2348 fi
2349
2350 if test "$plugins" = "yes" ; then
2351     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2352 fi
2353
2354 if test -n "$gdb_bin"; then
2355     gdb_version=$($gdb_bin --version | head -n 1)
2356     if version_ge ${gdb_version##* } 9.1; then
2357         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2358     else
2359         gdb_bin=""
2360     fi
2361 fi
2362
2363 if test "$container" != no; then
2364     echo "ENGINE=$container" >> $config_host_mak
2365 fi
2366 echo "ROMS=$roms" >> $config_host_mak
2367 echo "MAKE=$make" >> $config_host_mak
2368 echo "PYTHON=$python" >> $config_host_mak
2369 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2370 echo "MESON=$meson" >> $config_host_mak
2371 echo "NINJA=$ninja" >> $config_host_mak
2372 echo "CC=$cc" >> $config_host_mak
2373 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2374 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2375 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2376 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2377 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2378 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2379 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2380 echo "EXESUF=$EXESUF" >> $config_host_mak
2381
2382 # use included Linux headers
2383 if test "$linux" = "yes" ; then
2384   mkdir -p linux-headers
2385   case "$cpu" in
2386   i386|x86_64)
2387     linux_arch=x86
2388     ;;
2389   ppc|ppc64)
2390     linux_arch=powerpc
2391     ;;
2392   s390x)
2393     linux_arch=s390
2394     ;;
2395   aarch64)
2396     linux_arch=arm64
2397     ;;
2398   loongarch*)
2399     linux_arch=loongarch
2400     ;;
2401   mips64)
2402     linux_arch=mips
2403     ;;
2404   *)
2405     # For most CPUs the kernel architecture name and QEMU CPU name match.
2406     linux_arch="$cpu"
2407     ;;
2408   esac
2409     # For non-KVM architectures we will not have asm headers
2410     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2411       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2412     fi
2413 fi
2414
2415 for target in $target_list; do
2416     target_dir="$target"
2417     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2418     mkdir -p "$target_dir"
2419     case $target in
2420         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2421         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2422     esac
2423 done
2424
2425 if test "$default_targets" = "yes"; then
2426   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2427 fi
2428
2429 if test "$ccache_cpp2" = "yes"; then
2430   echo "export CCACHE_CPP2=y" >> $config_host_mak
2431 fi
2432
2433 if test "$safe_stack" = "yes"; then
2434   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2435 fi
2436
2437 # tests/tcg configuration
2438 (config_host_mak=tests/tcg/config-host.mak
2439 mkdir -p tests/tcg
2440 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2441 echo "SRC_PATH=$source_path" >> $config_host_mak
2442 echo "HOST_CC=$host_cc" >> $config_host_mak
2443
2444 # versioned checked in the main config_host.mak above
2445 if test -n "$gdb_bin"; then
2446     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2447 fi
2448 if test "$plugins" = "yes" ; then
2449     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2450 fi
2451
2452 tcg_tests_targets=
2453 for target in $target_list; do
2454   arch=${target%%-*}
2455
2456   case $target in
2457     xtensa*-linux-user)
2458       # the toolchain is not complete with headers, only build softmmu tests
2459       continue
2460       ;;
2461     *-softmmu)
2462       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2463       qemu="qemu-system-$arch"
2464       ;;
2465     *-linux-user|*-bsd-user)
2466       qemu="qemu-$arch"
2467       ;;
2468   esac
2469
2470   if probe_target_compiler $target || test -n "$container_image"; then
2471       test -n "$container_image" && build_static=y
2472       mkdir -p "tests/tcg/$target"
2473       config_target_mak=tests/tcg/$target/config-target.mak
2474       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2475       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2476       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2477       echo "TARGET=$target" >> "$config_target_mak"
2478       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2479       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2480       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2481       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2482       tcg_tests_targets="$tcg_tests_targets $target"
2483   fi
2484 done
2485 echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak)
2486
2487 if test "$skip_meson" = no; then
2488   cross="config-meson.cross.new"
2489   meson_quote() {
2490     test $# = 0 && return
2491     echo "'$(echo $* | sed "s/ /','/g")'"
2492   }
2493
2494   echo "# Automatically generated by configure - do not modify" > $cross
2495   echo "[properties]" >> $cross
2496
2497   # unroll any custom device configs
2498   for a in $device_archs; do
2499       eval "c=\$devices_${a}"
2500       echo "${a}-softmmu = '$c'" >> $cross
2501   done
2502
2503   echo "[built-in options]" >> $cross
2504   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2505   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2506   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2507   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2508   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2509   echo "[binaries]" >> $cross
2510   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2511   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2512   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2513   echo "ar = [$(meson_quote $ar)]" >> $cross
2514   echo "nm = [$(meson_quote $nm)]" >> $cross
2515   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2516   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2517   if has $sdl2_config; then
2518     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2519   fi
2520   echo "strip = [$(meson_quote $strip)]" >> $cross
2521   echo "widl = [$(meson_quote $widl)]" >> $cross
2522   echo "windres = [$(meson_quote $windres)]" >> $cross
2523   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2524   if test "$cross_compile" = "yes"; then
2525     cross_arg="--cross-file config-meson.cross"
2526     echo "[host_machine]" >> $cross
2527     echo "system = '$targetos'" >> $cross
2528     case "$cpu" in
2529         i386)
2530             echo "cpu_family = 'x86'" >> $cross
2531             ;;
2532         *)
2533             echo "cpu_family = '$cpu'" >> $cross
2534             ;;
2535     esac
2536     echo "cpu = '$cpu'" >> $cross
2537     if test "$bigendian" = "yes" ; then
2538         echo "endian = 'big'" >> $cross
2539     else
2540         echo "endian = 'little'" >> $cross
2541     fi
2542   else
2543     cross_arg="--native-file config-meson.cross"
2544   fi
2545   mv $cross config-meson.cross
2546
2547   rm -rf meson-private meson-info meson-logs
2548
2549   # Built-in options
2550   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2551   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2552   test "$pie" = no && meson_option_add -Db_pie=false
2553   test "$werror" = yes && meson_option_add -Dwerror=true
2554
2555   # QEMU options
2556   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2557   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2558   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2559   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2560   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2561   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2562   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2563   run_meson() {
2564     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2565   }
2566   eval run_meson $meson_options
2567   if test "$?" -ne 0 ; then
2568       error_exit "meson setup failed"
2569   fi
2570 else
2571   if test -f meson-private/cmd_line.txt; then
2572     # Adjust old command line options whose type was changed
2573     # Avoids having to use "setup --wipe" when Meson is upgraded
2574     perl -i -ne '
2575       s/^gettext = true$/gettext = auto/;
2576       s/^gettext = false$/gettext = disabled/;
2577       /^b_staticpic/ && next;
2578       print;' meson-private/cmd_line.txt
2579   fi
2580 fi
2581
2582 # Save the configure command line for later reuse.
2583 cat <<EOD >config.status
2584 #!/bin/sh
2585 # Generated by configure.
2586 # Run this file to recreate the current configuration.
2587 # Compiler output produced by configure, useful for debugging
2588 # configure, is in config.log if it exists.
2589 EOD
2590
2591 preserve_env() {
2592     envname=$1
2593
2594     eval envval=\$$envname
2595
2596     if test -n "$envval"
2597     then
2598         echo "$envname='$envval'" >> config.status
2599         echo "export $envname" >> config.status
2600     else
2601         echo "unset $envname" >> config.status
2602     fi
2603 }
2604
2605 # Preserve various env variables that influence what
2606 # features/build target configure will detect
2607 preserve_env AR
2608 preserve_env AS
2609 preserve_env CC
2610 preserve_env CFLAGS
2611 preserve_env CXX
2612 preserve_env CXXFLAGS
2613 preserve_env LD
2614 preserve_env LDFLAGS
2615 preserve_env LD_LIBRARY_PATH
2616 preserve_env MAKE
2617 preserve_env NM
2618 preserve_env OBJCFLAGS
2619 preserve_env OBJCOPY
2620 preserve_env PATH
2621 preserve_env PKG_CONFIG
2622 preserve_env PKG_CONFIG_LIBDIR
2623 preserve_env PKG_CONFIG_PATH
2624 preserve_env PYTHON
2625 preserve_env QEMU_GA_MANUFACTURER
2626 preserve_env QEMU_GA_DISTRO
2627 preserve_env QEMU_GA_VERSION
2628 preserve_env SDL2_CONFIG
2629 preserve_env SMBD
2630 preserve_env STRIP
2631 preserve_env WIDL
2632 preserve_env WINDRES
2633 preserve_env WINDMC
2634
2635 printf "exec" >>config.status
2636 for i in "$0" "$@"; do
2637   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2638 done
2639 echo ' "$@"' >>config.status
2640 chmod +x config.status
2641
2642 rm -r "$TMPDIR1"