configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     if ! mkdir build || ! touch $MARKER
  35     then
  36         echo "ERROR: Could not create ./build directory. Check the permissions on"
  37         echo "your source directory, or try doing an out-of-tree build."
  38         exit 1
  39     fi
  40
  41     cat > GNUmakefile <<'EOF'
  42 # This file is auto-generated by configure to support in-source tree
  43 # 'make' command invocation
  44
  45 ifeq ($(MAKECMDGOALS),)
  46 recurse: all
  47 endif
  48
  49 .NOTPARALLEL: %
  50 %: force
  51         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  52         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  53         @if test "$(MAKECMDGOALS)" = "distclean" && \
  54             test -e build/auto-created-by-configure ; \
  55         then \
  56             rm -rf build GNUmakefile ; \
  57         fi
  58 force: ;
  59 .PHONY: force
  60 GNUmakefile: ;
  61
  62 EOF
  63     cd build
  64     exec "$source_path/configure" "$@"
  65 fi
  66
  67 # Temporary directory used for files created while
  68 # configure runs. Since it is in the build directory
  69 # we can safely blow away any previous version of it
  70 # (and we need not jump through hoops to try to delete
  71 # it when configure exits.)
  72 TMPDIR1="config-temp"
  73 rm -rf "${TMPDIR1}"
  74 if ! mkdir -p "${TMPDIR1}"; then
  75     echo "ERROR: failed to create temporary directory"
  76     exit 1
  77 fi
  78
  79 TMPB="qemu-conf"
  80 TMPC="${TMPDIR1}/${TMPB}.c"
  81 TMPO="${TMPDIR1}/${TMPB}.o"
  82 TMPM="${TMPDIR1}/${TMPB}.m"
  83 TMPE="${TMPDIR1}/${TMPB}.exe"
  84
  85 rm -f config.log
  86
  87 # Print a helpful header at the top of config.log
  88 echo "# QEMU configure log $(date)" >> config.log
  89 printf "# Configured with:" >> config.log
  90 # repeat the invocation to log and stdout for CI
  91 invoke=$(printf " '%s'" "$0" "$@")
  92 test -n "$GITLAB_CI" && echo "configuring with: $invoke"
  93 { echo "$invoke"; echo; echo "#"; } >> config.log
  94
  95 quote_sh() {
  96     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  97 }
  98
  99 print_error() {
 100     (echo
 101     echo "ERROR: $1"
 102     while test -n "$2"; do
 103         echo "       $2"
 104         shift
 105     done
 106     echo) >&2
 107 }
 108
 109 error_exit() {
 110     print_error "$@"
 111     exit 1
 112 }
 113
 114 do_compiler() {
 115   # Run the compiler, capturing its output to the log. First argument
 116   # is compiler binary to execute.
 117   compiler="$1"
 118   shift
 119   if test -n "$BASH_VERSION"; then eval '
 120       echo >>config.log "
 121 funcs: ${FUNCNAME[*]}
 122 lines: ${BASH_LINENO[*]}"
 123   '; fi
 124   echo $compiler "$@" >> config.log
 125   $compiler "$@" >> config.log 2>&1 || return $?
 126 }
 127
 128 do_compiler_werror() {
 129     # Run the compiler, capturing its output to the log. First argument
 130     # is compiler binary to execute.
 131     compiler="$1"
 132     shift
 133     if test -n "$BASH_VERSION"; then eval '
 134         echo >>config.log "
 135 funcs: ${FUNCNAME[*]}
 136 lines: ${BASH_LINENO[*]}"
 137     '; fi
 138     echo $compiler "$@" >> config.log
 139     $compiler "$@" >> config.log 2>&1 || return $?
 140     # Test passed. If this is an --enable-werror build, rerun
 141     # the test with -Werror and bail out if it fails. This
 142     # makes warning-generating-errors in configure test code
 143     # obvious to developers.
 144     if test "$werror" != "yes"; then
 145         return 0
 146     fi
 147     # Don't bother rerunning the compile if we were already using -Werror
 148     case "$*" in
 149         *-Werror*)
 150            return 0
 151         ;;
 152     esac
 153     echo $compiler -Werror "$@" >> config.log
 154     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 155     error_exit "configure test passed without -Werror but failed with -Werror." \
 156         "This is probably a bug in the configure script. The failing command" \
 157         "will be at the bottom of config.log." \
 158         "You can run configure with --disable-werror to bypass this check."
 159 }
 160
 161 do_cc() {
 162     do_compiler_werror "$cc" $CPU_CFLAGS "$@"
 163 }
 164
 165 do_objc() {
 166     do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
 167 }
 168
 169 # Append $2 to the variable named $1, with space separation
 170 add_to() {
 171     eval $1=\${$1:+\"\$$1 \"}\$2
 172 }
 173
 174 compile_object() {
 175   local_cflags="$1"
 176   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 177 }
 178
 179 compile_prog() {
 180   local_cflags="$1"
 181   local_ldflags="$2"
 182   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 183       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 184 }
 185
 186 # symbolically link $1 to $2.  Portable version of "ln -sf".
 187 symlink() {
 188   rm -rf "$2"
 189   mkdir -p "$(dirname "$2")"
 190   ln -s "$1" "$2"
 191 }
 192
 193 # check whether a command is available to this shell (may be either an
 194 # executable or a builtin)
 195 has() {
 196     type "$1" >/dev/null 2>&1
 197 }
 198
 199 version_ge () {
 200     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 201     local_ver2=$(echo "$2" | tr . ' ')
 202     while true; do
 203         set x $local_ver1
 204         local_first=${2-0}
 205         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 206         shift ${2:+2}
 207         local_ver1=$*
 208         set x $local_ver2
 209         # the second argument finished, the first must be greater or equal
 210         test $# = 1 && return 0
 211         test $local_first -lt $2 && return 1
 212         test $local_first -gt $2 && return 0
 213         shift ${2:+2}
 214         local_ver2=$*
 215     done
 216 }
 217
 218 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 219 then
 220   error_exit "main directory cannot contain spaces nor colons"
 221 fi
 222
 223 # default parameters
 224 cpu=""
 225 static="no"
 226 cross_compile="no"
 227 cross_prefix=""
 228 host_cc="cc"
 229 stack_protector=""
 230 safe_stack=""
 231 use_containers="yes"
 232 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 233 gdb_arches=""
 234 glib_has_gslice="no"
 235
 236 if test -e "$source_path/.git"
 237 then
 238     git_submodules_action="update"
 239 else
 240     git_submodules_action="ignore"
 241 fi
 242
 243 git_submodules="ui/keycodemapdb"
 244 git="git"
 245
 246 # Don't accept a target_list environment variable.
 247 unset target_list
 248 unset target_list_exclude
 249
 250 # Default value for a variable defining feature "foo".
 251 #  * foo="no"  feature will only be used if --enable-foo arg is given
 252 #  * foo=""    feature will be searched for, and if found, will be used
 253 #              unless --disable-foo is given
 254 #  * foo="yes" this value will only be set by --enable-foo flag.
 255 #              feature will searched for,
 256 #              if not found, configure exits with error
 257 #
 258 # Always add --enable-foo and --disable-foo command line args.
 259 # Distributions want to ensure that several features are compiled in, and it
 260 # is impossible without a --enable-foo that exits if a feature is not found.
 261
 262 default_feature=""
 263 # parse CC options second
 264 for opt do
 265   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 266   case "$opt" in
 267       --without-default-features)
 268           default_feature="no"
 269   ;;
 270   esac
 271 done
 272
 273 EXTRA_CFLAGS=""
 274 EXTRA_CXXFLAGS=""
 275 EXTRA_OBJCFLAGS=""
 276 EXTRA_LDFLAGS=""
 277
 278 debug_tcg="no"
 279 sanitizers="no"
 280 tsan="no"
 281 fortify_source="yes"
 282 EXESUF=""
 283 modules="no"
 284 prefix="/usr/local"
 285 qemu_suffix="qemu"
 286 softmmu="yes"
 287 linux_user=""
 288 bsd_user=""
 289 pie=""
 290 coroutine=""
 291 plugins="$default_feature"
 292 meson=""
 293 ninja=""
 294 bindir="bin"
 295 skip_meson=no
 296 vfio_user_server="disabled"
 297
 298 # The following Meson options are handled manually (still they
 299 # are included in the automatically generated help message)
 300
 301 # 1. Track which submodules are needed
 302 fdt="auto"
 303
 304 # 2. Automatically enable/disable other options
 305 tcg="auto"
 306 cfi="false"
 307
 308 # parse CC options second
 309 for opt do
 310   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 311   case "$opt" in
 312   --cross-prefix=*) cross_prefix="$optarg"
 313                     cross_compile="yes"
 314   ;;
 315   --cc=*) CC="$optarg"
 316   ;;
 317   --cxx=*) CXX="$optarg"
 318   ;;
 319   --objcc=*) objcc="$optarg"
 320   ;;
 321   --cpu=*) cpu="$optarg"
 322   ;;
 323   --extra-cflags=*)
 324     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 325     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 326     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 327     ;;
 328   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 329   ;;
 330   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 331   ;;
 332   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 333   ;;
 334   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 335   ;;
 336   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 337                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 338   ;;
 339   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 340                 eval "cross_cc_${cc_arch}=\$optarg"
 341   ;;
 342   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 343   ;;
 344   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 345                     eval "cross_prefix_${cc_arch}=\$optarg"
 346   ;;
 347   esac
 348 done
 349
 350 # Preferred compiler:
 351 #  ${CC} (if set)
 352 #  ${cross_prefix}gcc (if cross-prefix specified)
 353 #  system compiler
 354 if test -z "${CC}${cross_prefix}"; then
 355   cc="$host_cc"
 356 else
 357   cc="${CC-${cross_prefix}gcc}"
 358 fi
 359
 360 if test -z "${CXX}${cross_prefix}"; then
 361   cxx="c++"
 362 else
 363   cxx="${CXX-${cross_prefix}g++}"
 364 fi
 365
 366 # Preferred ObjC compiler:
 367 # $objcc (if set, i.e. via --objcc option)
 368 # ${cross_prefix}clang (if cross-prefix specified)
 369 # clang (if available)
 370 # $cc
 371 if test -z "${objcc}${cross_prefix}"; then
 372   if has clang; then
 373     objcc=clang
 374   else
 375     objcc="$cc"
 376   fi
 377 else
 378   objcc="${objcc-${cross_prefix}clang}"
 379 fi
 380
 381 ar="${AR-${cross_prefix}ar}"
 382 as="${AS-${cross_prefix}as}"
 383 ccas="${CCAS-$cc}"
 384 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 385 ld="${LD-${cross_prefix}ld}"
 386 ranlib="${RANLIB-${cross_prefix}ranlib}"
 387 nm="${NM-${cross_prefix}nm}"
 388 smbd="$SMBD"
 389 strip="${STRIP-${cross_prefix}strip}"
 390 widl="${WIDL-${cross_prefix}widl}"
 391 windres="${WINDRES-${cross_prefix}windres}"
 392 windmc="${WINDMC-${cross_prefix}windmc}"
 393 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 394 query_pkg_config() {
 395     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 396 }
 397 pkg_config=query_pkg_config
 398 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 399
 400 # default flags for all hosts
 401 # We use -fwrapv to tell the compiler that we require a C dialect where
 402 # left shift of signed integers is well defined and has the expected
 403 # 2s-complement style results. (Both clang and gcc agree that it
 404 # provides these semantics.)
 405 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 406 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 407
 408 QEMU_LDFLAGS=
 409
 410 # Flags that are needed during configure but later taken care of by Meson
 411 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 412 CONFIGURE_LDFLAGS=
 413
 414
 415 check_define() {
 416 cat > $TMPC <<EOF
 417 #if !defined($1)
 418 #error $1 not defined
 419 #endif
 420 int main(void) { return 0; }
 421 EOF
 422   compile_object
 423 }
 424
 425 check_include() {
 426 cat > $TMPC <<EOF
 427 #include <$1>
 428 int main(void) { return 0; }
 429 EOF
 430   compile_object
 431 }
 432
 433 write_c_skeleton() {
 434     cat > $TMPC <<EOF
 435 int main(void) { return 0; }
 436 EOF
 437 }
 438
 439 if check_define __linux__ ; then
 440   targetos=linux
 441 elif check_define _WIN32 ; then
 442   targetos=windows
 443 elif check_define __OpenBSD__ ; then
 444   targetos=openbsd
 445 elif check_define __sun__ ; then
 446   targetos=sunos
 447 elif check_define __HAIKU__ ; then
 448   targetos=haiku
 449 elif check_define __FreeBSD__ ; then
 450   targetos=freebsd
 451 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 452   targetos=gnu/kfreebsd
 453 elif check_define __DragonFly__ ; then
 454   targetos=dragonfly
 455 elif check_define __NetBSD__; then
 456   targetos=netbsd
 457 elif check_define __APPLE__; then
 458   targetos=darwin
 459 else
 460   # This is a fatal error, but don't report it yet, because we
 461   # might be going to just print the --help text, or it might
 462   # be the result of a missing compiler.
 463   targetos=bogus
 464 fi
 465
 466 # OS specific
 467
 468 mingw32="no"
 469 bsd="no"
 470 linux="no"
 471 solaris="no"
 472 case $targetos in
 473 windows)
 474   mingw32="yes"
 475   plugins="no"
 476   pie="no"
 477 ;;
 478 gnu/kfreebsd)
 479   bsd="yes"
 480 ;;
 481 freebsd)
 482   bsd="yes"
 483   make="${MAKE-gmake}"
 484   # needed for kinfo_getvmmap(3) in libutil.h
 485 ;;
 486 dragonfly)
 487   bsd="yes"
 488   make="${MAKE-gmake}"
 489 ;;
 490 netbsd)
 491   bsd="yes"
 492   make="${MAKE-gmake}"
 493 ;;
 494 openbsd)
 495   bsd="yes"
 496   make="${MAKE-gmake}"
 497 ;;
 498 darwin)
 499   bsd="yes"
 500   darwin="yes"
 501   # Disable attempts to use ObjectiveC features in os/object.h since they
 502   # won't work when we're compiling with gcc as a C compiler.
 503   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 504 ;;
 505 sunos)
 506   solaris="yes"
 507   make="${MAKE-gmake}"
 508 # needed for CMSG_ macros in sys/socket.h
 509   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 510 # needed for TIOCWIN* defines in termios.h
 511   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 512 ;;
 513 haiku)
 514   pie="no"
 515   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 516 ;;
 517 linux)
 518   linux="yes"
 519 ;;
 520 esac
 521
 522 if test ! -z "$cpu" ; then
 523   # command line argument
 524   :
 525 elif check_define __i386__ ; then
 526   cpu="i386"
 527 elif check_define __x86_64__ ; then
 528   if check_define __ILP32__ ; then
 529     cpu="x32"
 530   else
 531     cpu="x86_64"
 532   fi
 533 elif check_define __sparc__ ; then
 534   if check_define __arch64__ ; then
 535     cpu="sparc64"
 536   else
 537     cpu="sparc"
 538   fi
 539 elif check_define _ARCH_PPC ; then
 540   if check_define _ARCH_PPC64 ; then
 541     if check_define _LITTLE_ENDIAN ; then
 542       cpu="ppc64le"
 543     else
 544       cpu="ppc64"
 545     fi
 546   else
 547     cpu="ppc"
 548   fi
 549 elif check_define __mips__ ; then
 550   cpu="mips"
 551 elif check_define __s390__ ; then
 552   if check_define __s390x__ ; then
 553     cpu="s390x"
 554   else
 555     cpu="s390"
 556   fi
 557 elif check_define __riscv ; then
 558   cpu="riscv"
 559 elif check_define __arm__ ; then
 560   cpu="arm"
 561 elif check_define __aarch64__ ; then
 562   cpu="aarch64"
 563 elif check_define __loongarch64 ; then
 564   cpu="loongarch64"
 565 else
 566   # Using uname is really broken, but it is just a fallback for architectures
 567   # that are going to use TCI anyway
 568   cpu=$(uname -m)
 569   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 570 fi
 571
 572 # Normalise host CPU name and set multilib cflags.  The canonicalization
 573 # isn't really necessary, because the architectures that we check for
 574 # should not hit the 'uname -m' case, but better safe than sorry.
 575 # Note that this case should only have supported host CPUs, not guests.
 576 case "$cpu" in
 577   armv*b|armv*l|arm)
 578     cpu="arm" ;;
 579
 580   i386|i486|i586|i686)
 581     cpu="i386"
 582     CPU_CFLAGS="-m32" ;;
 583   x32)
 584     cpu="x86_64"
 585     CPU_CFLAGS="-mx32" ;;
 586   x86_64|amd64)
 587     cpu="x86_64"
 588     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 589     # If we truly care, we should simply detect this case at
 590     # runtime and generate the fallback to serial emulation.
 591     CPU_CFLAGS="-m64 -mcx16" ;;
 592
 593   mips*)
 594     cpu="mips" ;;
 595
 596   ppc)
 597     CPU_CFLAGS="-m32" ;;
 598   ppc64)
 599     CPU_CFLAGS="-m64 -mbig-endian" ;;
 600   ppc64le)
 601     cpu="ppc64"
 602     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 603
 604   s390)
 605     CPU_CFLAGS="-m31" ;;
 606   s390x)
 607     CPU_CFLAGS="-m64" ;;
 608
 609   sparc|sun4[cdmuv])
 610     cpu="sparc"
 611     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 612   sparc64)
 613     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 614 esac
 615
 616 : ${make=${MAKE-make}}
 617
 618
 619 check_py_version() {
 620     # We require python >= 3.6.
 621     # NB: a True python conditional creates a non-zero return code (Failure)
 622     "$1" -c 'import sys; sys.exit(sys.version_info < (3,6))'
 623 }
 624
 625 python=
 626 first_python=
 627 if test -z "${PYTHON}"; then
 628     # A bare 'python' is traditionally python 2.x, but some distros
 629     # have it as python 3.x, so check in both places.
 630     for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7 python3.6; do
 631         if has "$binary"; then
 632             python=$(command -v "$binary")
 633             if check_py_version "$python"; then
 634                 # This one is good.
 635                 first_python=
 636                 break
 637             else
 638                 first_python=$python
 639             fi
 640         fi
 641     done
 642 else
 643     # Same as above, but only check the environment variable.
 644     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 645     python=$(command -v "$PYTHON")
 646     if check_py_version "$python"; then
 647         # This one is good.
 648         first_python=
 649     else
 650         first_python=$first_python
 651     fi
 652 fi
 653
 654 # Check for ancillary tools used in testing
 655 genisoimage=
 656 for binary in genisoimage mkisofs
 657 do
 658     if has $binary
 659     then
 660         genisoimage=$(command -v "$binary")
 661         break
 662     fi
 663 done
 664
 665 if test "$mingw32" = "yes" ; then
 666   EXESUF=".exe"
 667   # MinGW needs -mthreads for TLS and macro _MT.
 668   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 669   prefix="/qemu"
 670   bindir=""
 671   qemu_suffix=""
 672 fi
 673
 674 werror=""
 675
 676 meson_option_build_array() {
 677   printf '['
 678   (if test "$targetos" = windows; then
 679     IFS=\;
 680   else
 681     IFS=:
 682   fi
 683   for e in $1; do
 684     printf '"""'
 685     # backslash escape any '\' and '"' characters
 686     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 687     printf '""",'
 688   done)
 689   printf ']\n'
 690 }
 691
 692 . "$source_path/scripts/meson-buildoptions.sh"
 693
 694 meson_options=
 695 meson_option_add() {
 696   meson_options="$meson_options $(quote_sh "$1")"
 697 }
 698 meson_option_parse() {
 699   meson_options="$meson_options $(_meson_option_parse "$@")"
 700   if test $? -eq 1; then
 701     echo "ERROR: unknown option $1"
 702     echo "Try '$0 --help' for more information"
 703     exit 1
 704   fi
 705 }
 706
 707 for opt do
 708   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 709   case "$opt" in
 710   --help|-h) show_help=yes
 711   ;;
 712   --version|-V) exec cat "$source_path/VERSION"
 713   ;;
 714   --prefix=*) prefix="$optarg"
 715   ;;
 716   --cross-prefix=*)
 717   ;;
 718   --cc=*)
 719   ;;
 720   --host-cc=*) host_cc="$optarg"
 721   ;;
 722   --cxx=*)
 723   ;;
 724   --objcc=*)
 725   ;;
 726   --make=*) make="$optarg"
 727   ;;
 728   --install=*)
 729   ;;
 730   --python=*) python="$optarg"
 731   ;;
 732   --skip-meson) skip_meson=yes
 733   ;;
 734   --meson=*) meson="$optarg"
 735   ;;
 736   --ninja=*) ninja="$optarg"
 737   ;;
 738   --smbd=*) smbd="$optarg"
 739   ;;
 740   --extra-cflags=*)
 741   ;;
 742   --extra-cxxflags=*)
 743   ;;
 744   --extra-objcflags=*)
 745   ;;
 746   --extra-ldflags=*)
 747   ;;
 748   --cross-cc-*)
 749   ;;
 750   --cross-prefix-*)
 751   ;;
 752   --enable-debug-info) meson_option_add -Ddebug=true
 753   ;;
 754   --disable-debug-info) meson_option_add -Ddebug=false
 755   ;;
 756   --enable-modules)
 757       modules="yes"
 758   ;;
 759   --disable-modules)
 760       modules="no"
 761   ;;
 762   --cpu=*)
 763   ;;
 764   --target-list=*) target_list="$optarg"
 765                    if test "$target_list_exclude"; then
 766                        error_exit "Can't mix --target-list with --target-list-exclude"
 767                    fi
 768   ;;
 769   --target-list-exclude=*) target_list_exclude="$optarg"
 770                    if test "$target_list"; then
 771                        error_exit "Can't mix --target-list-exclude with --target-list"
 772                    fi
 773   ;;
 774   --with-default-devices) meson_option_add -Ddefault_devices=true
 775   ;;
 776   --without-default-devices) meson_option_add -Ddefault_devices=false
 777   ;;
 778   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 779   ;;
 780   --with-devices-*) device_arch=${opt#--with-devices-};
 781                     device_arch=${device_arch%%=*}
 782                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 783                     if test -f "$cf"; then
 784                         device_archs="$device_archs $device_arch"
 785                         eval "devices_${device_arch}=\$optarg"
 786                     else
 787                         error_exit "File $cf does not exist"
 788                     fi
 789   ;;
 790   --without-default-features) # processed above
 791   ;;
 792   --static)
 793     static="yes"
 794     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 795   ;;
 796   --bindir=*) bindir="$optarg"
 797   ;;
 798   --with-suffix=*) qemu_suffix="$optarg"
 799   ;;
 800   --host=*|--build=*|\
 801   --disable-dependency-tracking|\
 802   --sbindir=*|--sharedstatedir=*|\
 803   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 804   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 805     # These switches are silently ignored, for compatibility with
 806     # autoconf-generated configure scripts. This allows QEMU's
 807     # configure to be used by RPM and similar macros that set
 808     # lots of directory switches by default.
 809   ;;
 810   --enable-debug-tcg) debug_tcg="yes"
 811   ;;
 812   --disable-debug-tcg) debug_tcg="no"
 813   ;;
 814   --enable-debug)
 815       # Enable debugging options that aren't excessively noisy
 816       debug_tcg="yes"
 817       meson_option_parse --enable-debug-graph-lock ""
 818       meson_option_parse --enable-debug-mutex ""
 819       meson_option_add -Doptimization=0
 820       fortify_source="no"
 821   ;;
 822   --enable-sanitizers) sanitizers="yes"
 823   ;;
 824   --disable-sanitizers) sanitizers="no"
 825   ;;
 826   --enable-tsan) tsan="yes"
 827   ;;
 828   --disable-tsan) tsan="no"
 829   ;;
 830   --disable-tcg) tcg="disabled"
 831                  plugins="no"
 832   ;;
 833   --enable-tcg) tcg="enabled"
 834   ;;
 835   --disable-system) softmmu="no"
 836   ;;
 837   --enable-system) softmmu="yes"
 838   ;;
 839   --disable-user)
 840       linux_user="no" ;
 841       bsd_user="no" ;
 842   ;;
 843   --enable-user) ;;
 844   --disable-linux-user) linux_user="no"
 845   ;;
 846   --enable-linux-user) linux_user="yes"
 847   ;;
 848   --disable-bsd-user) bsd_user="no"
 849   ;;
 850   --enable-bsd-user) bsd_user="yes"
 851   ;;
 852   --enable-pie) pie="yes"
 853   ;;
 854   --disable-pie) pie="no"
 855   ;;
 856   --enable-werror) werror="yes"
 857   ;;
 858   --disable-werror) werror="no"
 859   ;;
 860   --enable-stack-protector) stack_protector="yes"
 861   ;;
 862   --disable-stack-protector) stack_protector="no"
 863   ;;
 864   --enable-safe-stack) safe_stack="yes"
 865   ;;
 866   --disable-safe-stack) safe_stack="no"
 867   ;;
 868   --enable-cfi)
 869       cfi="true";
 870       meson_option_add -Db_lto=true
 871   ;;
 872   --disable-cfi) cfi="false"
 873   ;;
 874   --disable-fdt) fdt="disabled"
 875   ;;
 876   --enable-fdt) fdt="enabled"
 877   ;;
 878   --enable-fdt=git) fdt="internal"
 879   ;;
 880   --enable-fdt=*) fdt="$optarg"
 881   ;;
 882   --with-coroutine=*) coroutine="$optarg"
 883   ;;
 884   --with-git=*) git="$optarg"
 885   ;;
 886   --with-git-submodules=*)
 887       git_submodules_action="$optarg"
 888   ;;
 889   --enable-plugins) if test "$mingw32" = "yes"; then
 890                         error_exit "TCG plugins not currently supported on Windows platforms"
 891                     else
 892                         plugins="yes"
 893                     fi
 894   ;;
 895   --disable-plugins) plugins="no"
 896   ;;
 897   --enable-containers) use_containers="yes"
 898   ;;
 899   --disable-containers) use_containers="no"
 900   ;;
 901   --gdb=*) gdb_bin="$optarg"
 902   ;;
 903   --enable-vfio-user-server) vfio_user_server="enabled"
 904   ;;
 905   --disable-vfio-user-server) vfio_user_server="disabled"
 906   ;;
 907   # everything else has the same name in configure and meson
 908   --*) meson_option_parse "$opt" "$optarg"
 909   ;;
 910   esac
 911 done
 912
 913 # test for any invalid configuration combinations
 914 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 915     error_exit "Can't enable plugins on non-TCG builds"
 916 fi
 917
 918 case $git_submodules_action in
 919     update|validate)
 920         if test ! -e "$source_path/.git"; then
 921             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 922             exit 1
 923         fi
 924     ;;
 925     ignore)
 926         if ! test -f "$source_path/ui/keycodemapdb/README"
 927         then
 928             echo
 929             echo "ERROR: missing GIT submodules"
 930             echo
 931             if test -e "$source_path/.git"; then
 932                 echo "--with-git-submodules=ignore specified but submodules were not"
 933                 echo "checked out.  Please initialize and update submodules."
 934             else
 935                 echo "This is not a GIT checkout but module content appears to"
 936                 echo "be missing. Do not use 'git archive' or GitHub download links"
 937                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 938                 echo "supported with source archives linked from:"
 939                 echo
 940                 echo "  https://www.qemu.org/download/#source"
 941                 echo
 942                 echo "Developers working with GIT can use scripts/archive-source.sh"
 943                 echo "if they need to create valid source archives."
 944             fi
 945             echo
 946             exit 1
 947         fi
 948     ;;
 949     *)
 950         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 951         exit 1
 952     ;;
 953 esac
 954
 955 default_target_list=""
 956 mak_wilds=""
 957
 958 if [ "$linux_user" != no ]; then
 959     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 960         linux_user=yes
 961     elif [ "$linux_user" = yes ]; then
 962         error_exit "linux-user not supported on this architecture"
 963     fi
 964 fi
 965 if [ "$bsd_user" != no ]; then
 966     if [ "$bsd_user" = "" ]; then
 967         test $targetos = freebsd && bsd_user=yes
 968     fi
 969     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 970         error_exit "bsd-user not supported on this host OS"
 971     fi
 972 fi
 973 if [ "$softmmu" = "yes" ]; then
 974     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 975 fi
 976 if [ "$linux_user" = "yes" ]; then
 977     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 978 fi
 979 if [ "$bsd_user" = "yes" ]; then
 980     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 981 fi
 982
 983 for config in $mak_wilds; do
 984     target="$(basename "$config" .mak)"
 985     if echo "$target_list_exclude" | grep -vq "$target"; then
 986         default_target_list="${default_target_list} $target"
 987     fi
 988 done
 989
 990 if test x"$show_help" = x"yes" ; then
 991 cat << EOF
 992
 993 Usage: configure [options]
 994 Options: [defaults in brackets after descriptions]
 995
 996 Standard options:
 997   --help                   print this message
 998   --prefix=PREFIX          install in PREFIX [$prefix]
 999   --target-list=LIST       set target list (default: build all)
1000 $(echo Available targets: $default_target_list | \
1001   fold -s -w 53 | sed -e 's/^/                           /')
1002   --target-list-exclude=LIST exclude a set of targets from the default target-list
1003
1004 Advanced options (experts only):
1005   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1006   --cc=CC                  use C compiler CC [$cc]
1007   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1008                            build time
1009   --cxx=CXX                use C++ compiler CXX [$cxx]
1010   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1011   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1012   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1013   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1014   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1015   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1016   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1017   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1018   --make=MAKE              use specified make [$make]
1019   --python=PYTHON          use specified python [$python]
1020   --meson=MESON            use specified meson [$meson]
1021   --ninja=NINJA            use specified ninja [$ninja]
1022   --smbd=SMBD              use specified smbd [$smbd]
1023   --with-git=GIT           use specified git [$git]
1024   --with-git-submodules=update   update git submodules (default if .git dir exists)
1025   --with-git-submodules=validate fail if git submodules are not up to date
1026   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1027   --static                 enable static build [$static]
1028   --bindir=PATH            install binaries in PATH
1029   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1030   --without-default-features default all --enable-* options to "disabled"
1031   --without-default-devices  do not include any device that is not needed to
1032                            start the emulator (only use if you are including
1033                            desired devices in configs/devices/)
1034   --with-devices-ARCH=NAME override default configs/devices
1035   --enable-debug           enable common debug build options
1036   --enable-sanitizers      enable default sanitizers
1037   --enable-tsan            enable thread sanitizer
1038   --disable-werror         disable compilation abort on warning
1039   --disable-stack-protector disable compiler-provided stack protection
1040   --cpu=CPU                Build for host CPU [$cpu]
1041   --with-coroutine=BACKEND coroutine backend. Supported options:
1042                            ucontext, sigaltstack, windows
1043   --enable-plugins
1044                            enable plugins via shared library loading
1045   --disable-containers     don't use containers for cross-building
1046   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1047 EOF
1048   meson_options_help
1049 cat << EOF
1050   system          all system emulation targets
1051   user            supported user emulation targets
1052   linux-user      all linux usermode emulation targets
1053   bsd-user        all BSD usermode emulation targets
1054   pie             Position Independent Executables
1055   modules         modules support (non-Windows)
1056   debug-tcg       TCG debugging (default is disabled)
1057   debug-info      debugging information
1058   safe-stack      SafeStack Stack Smash Protection. Depends on
1059                   clang/llvm and requires coroutine backend ucontext.
1060
1061 NOTE: The object files are built at the place where configure is launched
1062 EOF
1063 exit 0
1064 fi
1065
1066 # Remove old dependency files to make sure that they get properly regenerated
1067 rm -f ./*/config-devices.mak.d
1068
1069 if test -z "$python"
1070 then
1071     # If first_python is set, there was a binary somewhere even though
1072     # it was not suitable.  Use it for the error message.
1073     if test -n "$first_python"; then
1074         error_exit "Cannot use '$first_python', Python >= 3.6 is required." \
1075             "Use --python=/path/to/python to specify a supported Python."
1076     else
1077         error_exit "Python not found. Use --python=/path/to/python"
1078     fi
1079 fi
1080
1081 if ! has "$make"
1082 then
1083     error_exit "GNU make ($make) not found"
1084 fi
1085
1086 if ! check_py_version "$python"; then
1087   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1088       "Use --python=/path/to/python to specify a supported Python."
1089 fi
1090
1091 # Resolve PATH
1092 python="$(command -v "$python")"
1093 explicit_python=yes
1094
1095 # Create a Python virtual environment using our configured python.
1096 # The stdout of this script will be the location of a symlink that
1097 # points to the configured Python.
1098 # Entry point scripts for pip, meson, and sphinx are generated if those
1099 # packages are present.
1100
1101 # Defaults assumed for now:
1102 # - venv is cleared if it exists already;
1103 # - venv is allowed to use system packages;
1104 # - all setup is performed **offline**;
1105 # - No packages are installed by default;
1106 # - pip is not installed into the venv when possible,
1107 #   but ensurepip is called as a fallback when necessary.
1108
1109 echo "python determined to be '$python'"
1110 echo "python version: $($python --version)"
1111
1112 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
1113 if test "$?" -ne 0 ; then
1114     error_exit "python venv creation failed"
1115 fi
1116
1117 # Suppress writing compiled files
1118 python="$python -B"
1119
1120 has_meson() {
1121   local python_dir=$(dirname "$python")
1122   # PEP405: pyvenv.cfg is either adjacent to the Python executable
1123   # or one directory above
1124   if test -f $python_dir/pyvenv.cfg || test -f $python_dir/../pyvenv.cfg; then
1125     # Ensure that Meson and Python come from the same virtual environment
1126     test -x "$python_dir/meson" &&
1127       test "$(command -v meson)" -ef "$python_dir/meson"
1128   else
1129     has meson
1130   fi
1131 }
1132
1133 if test -z "$meson"; then
1134     if test "$explicit_python" = no && has_meson && version_ge "$(meson --version)" 0.61.5; then
1135         meson=meson
1136     elif test "$git_submodules_action" != 'ignore' ; then
1137         meson=git
1138     elif test -e "${source_path}/meson/meson.py" ; then
1139         meson=internal
1140     else
1141         if test "$explicit_python" = yes; then
1142             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1143         else
1144             error_exit "Meson not found.  Use --meson=/path/to/meson"
1145         fi
1146     fi
1147 else
1148     # Meson uses its own Python interpreter to invoke other Python scripts,
1149     # but the user wants to use the one they specified with --python.
1150     #
1151     # We do not want to override the distro Python interpreter (and sometimes
1152     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1153     # just require --meson=git|internal together with --python.
1154     if test "$explicit_python" = yes; then
1155         case "$meson" in
1156             git | internal) ;;
1157             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1158         esac
1159     fi
1160 fi
1161
1162 if test "$meson" = git; then
1163     git_submodules="${git_submodules} meson"
1164 fi
1165
1166 case "$meson" in
1167     git | internal)
1168         meson="$python ${source_path}/meson/meson.py"
1169         ;;
1170     *) meson=$(command -v "$meson") ;;
1171 esac
1172
1173 # Probe for ninja
1174
1175 if test -z "$ninja"; then
1176     for c in ninja ninja-build samu; do
1177         if has $c; then
1178             ninja=$(command -v "$c")
1179             break
1180         fi
1181     done
1182     if test -z "$ninja"; then
1183       error_exit "Cannot find Ninja"
1184     fi
1185 fi
1186
1187 # Check that the C compiler works. Doing this here before testing
1188 # the host CPU ensures that we had a valid CC to autodetect the
1189 # $cpu var (and we should bail right here if that's not the case).
1190 # It also allows the help message to be printed without a CC.
1191 write_c_skeleton;
1192 if compile_object ; then
1193   : C compiler works ok
1194 else
1195     error_exit "\"$cc\" either does not exist or does not work"
1196 fi
1197 if ! compile_prog ; then
1198     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1199 fi
1200
1201 # Consult white-list to determine whether to enable werror
1202 # by default.  Only enable by default for git builds
1203 if test -z "$werror" ; then
1204     if test "$git_submodules_action" != "ignore" && \
1205         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1206         werror="yes"
1207     else
1208         werror="no"
1209     fi
1210 fi
1211
1212 if test "$targetos" = "bogus"; then
1213     # Now that we know that we're not printing the help and that
1214     # the compiler works (so the results of the check_defines we used
1215     # to identify the OS are reliable), if we didn't recognize the
1216     # host OS we should stop now.
1217     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1218 fi
1219
1220 # Check whether the compiler matches our minimum requirements:
1221 cat > $TMPC << EOF
1222 #if defined(__clang_major__) && defined(__clang_minor__)
1223 # ifdef __apple_build_version__
1224 #  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1225 #   error You need at least XCode Clang v12.0 to compile QEMU
1226 #  endif
1227 # else
1228 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1229 #   error You need at least Clang v10.0 to compile QEMU
1230 #  endif
1231 # endif
1232 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1233 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1234 #  error You need at least GCC v7.4.0 to compile QEMU
1235 # endif
1236 #else
1237 # error You either need GCC or Clang to compiler QEMU
1238 #endif
1239 int main (void) { return 0; }
1240 EOF
1241 if ! compile_prog "" "" ; then
1242     error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1243 fi
1244
1245 # Accumulate -Wfoo and -Wno-bar separately.
1246 # We will list all of the enable flags first, and the disable flags second.
1247 # Note that we do not add -Werror, because that would enable it for all
1248 # configure tests. If a configure test failed due to -Werror this would
1249 # just silently disable some features, so it's too error prone.
1250
1251 warn_flags=
1252 add_to warn_flags -Wundef
1253 add_to warn_flags -Wwrite-strings
1254 add_to warn_flags -Wmissing-prototypes
1255 add_to warn_flags -Wstrict-prototypes
1256 add_to warn_flags -Wredundant-decls
1257 add_to warn_flags -Wold-style-declaration
1258 add_to warn_flags -Wold-style-definition
1259 add_to warn_flags -Wtype-limits
1260 add_to warn_flags -Wformat-security
1261 add_to warn_flags -Wformat-y2k
1262 add_to warn_flags -Winit-self
1263 add_to warn_flags -Wignored-qualifiers
1264 add_to warn_flags -Wempty-body
1265 add_to warn_flags -Wnested-externs
1266 add_to warn_flags -Wendif-labels
1267 add_to warn_flags -Wexpansion-to-defined
1268 add_to warn_flags -Wimplicit-fallthrough=2
1269 add_to warn_flags -Wmissing-format-attribute
1270
1271 if test "$targetos" != "darwin"; then
1272     add_to warn_flags -Wthread-safety
1273 fi
1274
1275 nowarn_flags=
1276 add_to nowarn_flags -Wno-initializer-overrides
1277 add_to nowarn_flags -Wno-missing-include-dirs
1278 add_to nowarn_flags -Wno-shift-negative-value
1279 add_to nowarn_flags -Wno-string-plus-int
1280 add_to nowarn_flags -Wno-typedef-redefinition
1281 add_to nowarn_flags -Wno-tautological-type-limit-compare
1282 add_to nowarn_flags -Wno-psabi
1283 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1284
1285 gcc_flags="$warn_flags $nowarn_flags"
1286
1287 cc_has_warning_flag() {
1288     write_c_skeleton;
1289
1290     # Use the positive sense of the flag when testing for -Wno-wombat
1291     # support (gcc will happily accept the -Wno- form of unknown
1292     # warning options).
1293     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1294     compile_prog "-Werror $optflag" ""
1295 }
1296
1297 objcc_has_warning_flag() {
1298     cat > $TMPM <<EOF
1299 int main(void) { return 0; }
1300 EOF
1301
1302     # Use the positive sense of the flag when testing for -Wno-wombat
1303     # support (gcc will happily accept the -Wno- form of unknown
1304     # warning options).
1305     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1306     do_objc -Werror $optflag \
1307       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1308       -o $TMPE $TMPM $QEMU_LDFLAGS
1309 }
1310
1311 for flag in $gcc_flags; do
1312     if cc_has_warning_flag $flag ; then
1313         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1314     fi
1315     if objcc_has_warning_flag $flag ; then
1316         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1317     fi
1318 done
1319
1320 if test "$stack_protector" != "no"; then
1321   cat > $TMPC << EOF
1322 int main(int argc, char *argv[])
1323 {
1324     char arr[64], *p = arr, *c = argv[argc - 1];
1325     while (*c) {
1326         *p++ = *c++;
1327     }
1328     return 0;
1329 }
1330 EOF
1331   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1332   sp_on=0
1333   for flag in $gcc_flags; do
1334     # We need to check both a compile and a link, since some compiler
1335     # setups fail only on a .c->.o compile and some only at link time
1336     if compile_object "-Werror $flag" &&
1337        compile_prog "-Werror $flag" ""; then
1338       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1339       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1340       sp_on=1
1341       break
1342     fi
1343   done
1344   if test "$stack_protector" = yes; then
1345     if test $sp_on = 0; then
1346       error_exit "Stack protector not supported"
1347     fi
1348   fi
1349 fi
1350
1351 # Our module code doesn't support Windows
1352 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1353   error_exit "Modules are not available for Windows"
1354 fi
1355
1356 # Static linking is not possible with plugins, modules or PIE
1357 if test "$static" = "yes" ; then
1358   if test "$modules" = "yes" ; then
1359     error_exit "static and modules are mutually incompatible"
1360   fi
1361   if test "$plugins" = "yes"; then
1362     error_exit "static and plugins are mutually incompatible"
1363   else
1364     plugins="no"
1365   fi
1366 fi
1367 test "$plugins" = "" && plugins=yes
1368
1369 cat > $TMPC << EOF
1370
1371 #ifdef __linux__
1372 #  define THREAD __thread
1373 #else
1374 #  define THREAD
1375 #endif
1376 static THREAD int tls_var;
1377 int main(void) { return tls_var; }
1378 EOF
1379
1380 # Meson currently only handles pie as a boolean for now so if we have
1381 # explicitly disabled PIE we need to extend our cflags because it wont.
1382 if test "$static" = "yes"; then
1383   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1384     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1385     pie="yes"
1386   elif test "$pie" = "yes"; then
1387     error_exit "-static-pie not available due to missing toolchain support"
1388   else
1389     pie="no"
1390     QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
1391   fi
1392 elif test "$pie" = "no"; then
1393   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1394     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1395     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1396     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1397   fi
1398 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1399   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1400   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1401   pie="yes"
1402 elif test "$pie" = "yes"; then
1403   error_exit "PIE not available due to missing toolchain support"
1404 else
1405   echo "Disabling PIE due to missing toolchain support"
1406   pie="no"
1407 fi
1408
1409 ##########################################
1410 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1411 # use i686 as default anyway, but for those that don't, an explicit
1412 # specification is necessary
1413
1414 if test "$cpu" = "i386"; then
1415   cat > $TMPC << EOF
1416 static int sfaa(int *ptr)
1417 {
1418   return __sync_fetch_and_and(ptr, 0);
1419 }
1420
1421 int main(void)
1422 {
1423   int val = 42;
1424   val = __sync_val_compare_and_swap(&val, 0, 1);
1425   sfaa(&val);
1426   return val;
1427 }
1428 EOF
1429   if ! compile_prog "" "" ; then
1430     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1431   fi
1432 fi
1433
1434 if test -z "${target_list+xxx}" ; then
1435     default_targets=yes
1436     for target in $default_target_list; do
1437         target_list="$target_list $target"
1438     done
1439     target_list="${target_list# }"
1440 else
1441     default_targets=no
1442     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1443     for target in $target_list; do
1444         # Check that we recognised the target name; this allows a more
1445         # friendly error message than if we let it fall through.
1446         case " $default_target_list " in
1447             *" $target "*)
1448                 ;;
1449             *)
1450                 error_exit "Unknown target name '$target'"
1451                 ;;
1452         esac
1453     done
1454 fi
1455
1456 # see if system emulation was really requested
1457 case " $target_list " in
1458   *"-softmmu "*) softmmu=yes
1459   ;;
1460   *) softmmu=no
1461   ;;
1462 esac
1463
1464 if test "$tcg" = "auto"; then
1465   if test -z "$target_list"; then
1466     tcg="disabled"
1467   else
1468     tcg="enabled"
1469   fi
1470 fi
1471
1472 if test "$tcg" = "enabled"; then
1473     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1474     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1475 fi
1476
1477 ##########################################
1478 # big/little endian test
1479 cat > $TMPC << EOF
1480 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1481 # error LITTLE
1482 #endif
1483 int main(void) { return 0; }
1484 EOF
1485
1486 if ! compile_prog ; then
1487   bigendian="no"
1488 else
1489   cat > $TMPC << EOF
1490 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1491 # error BIG
1492 #endif
1493 int main(void) { return 0; }
1494 EOF
1495
1496   if ! compile_prog ; then
1497     bigendian="yes"
1498   else
1499     echo big/little test failed
1500     exit 1
1501   fi
1502 fi
1503
1504 ##########################################
1505 # pkg-config probe
1506
1507 if ! has "$pkg_config_exe"; then
1508   error_exit "pkg-config binary '$pkg_config_exe' not found"
1509 fi
1510
1511 ##########################################
1512 # glib support probe
1513
1514 # When bumping glib_req_ver, please check also whether we should increase
1515 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1516 glib_req_ver=2.56
1517 glib_modules=gthread-2.0
1518 if test "$modules" = yes; then
1519     glib_modules="$glib_modules gmodule-export-2.0"
1520 elif test "$plugins" = "yes"; then
1521     glib_modules="$glib_modules gmodule-no-export-2.0"
1522 fi
1523
1524 for i in $glib_modules; do
1525     if $pkg_config --atleast-version=$glib_req_ver $i; then
1526         glib_cflags=$($pkg_config --cflags $i)
1527         glib_libs=$($pkg_config --libs $i)
1528     else
1529         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1530     fi
1531 done
1532
1533 # Check whether glib has gslice, which we have to avoid for correctness.
1534 # TODO: remove this check and the corresponding workaround (qtree) when
1535 # the minimum supported glib is >= $glib_dropped_gslice_version.
1536 glib_dropped_gslice_version=2.75.3
1537 for i in $glib_modules; do
1538     if ! $pkg_config --atleast-version=$glib_dropped_gslice_version $i; then
1539         glib_has_gslice="yes"
1540         break
1541     fi
1542 done
1543
1544 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1545 if test -z "$glib_bindir" ; then
1546         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1547 fi
1548
1549 # This workaround is required due to a bug in pkg-config file for glib as it
1550 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1551
1552 if test "$static" = yes && test "$mingw32" = yes; then
1553     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1554 fi
1555
1556 # Sanity check that the current size_t matches the
1557 # size that glib thinks it should be. This catches
1558 # problems on multi-arch where people try to build
1559 # 32-bit QEMU while pointing at 64-bit glib headers
1560 cat > $TMPC <<EOF
1561 #include <glib.h>
1562 #include <unistd.h>
1563
1564 #define QEMU_BUILD_BUG_ON(x) \
1565   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1566
1567 int main(void) {
1568    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1569    return 0;
1570 }
1571 EOF
1572
1573 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1574     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1575                "You probably need to set PKG_CONFIG_LIBDIR"\
1576                "to point to the right pkg-config files for your"\
1577                "build target"
1578 fi
1579
1580 # Silence clang warnings triggered by glib < 2.57.2
1581 cat > $TMPC << EOF
1582 #include <glib.h>
1583 typedef struct Foo {
1584     int i;
1585 } Foo;
1586 static void foo_free(Foo *f)
1587 {
1588     g_free(f);
1589 }
1590 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1591 int main(void) { return 0; }
1592 EOF
1593 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1594     if cc_has_warning_flag "-Wno-unused-function"; then
1595         glib_cflags="$glib_cflags -Wno-unused-function"
1596         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1597     fi
1598 fi
1599
1600 ##########################################
1601 # fdt probe
1602
1603 case "$fdt" in
1604   auto | enabled | internal)
1605     # Simpler to always update submodule, even if not needed.
1606     git_submodules="${git_submodules} dtc"
1607     ;;
1608 esac
1609
1610 ##########################################
1611 # check and set a backend for coroutine
1612
1613 # We prefer ucontext, but it's not always possible. The fallback
1614 # is sigcontext. On Windows the only valid backend is the Windows
1615 # specific one.
1616
1617 ucontext_works=no
1618 if test "$darwin" != "yes"; then
1619   cat > $TMPC << EOF
1620 #include <ucontext.h>
1621 #ifdef __stub_makecontext
1622 #error Ignoring glibc stub makecontext which will always fail
1623 #endif
1624 int main(void) { makecontext(0, 0, 0); return 0; }
1625 EOF
1626   if compile_prog "" "" ; then
1627     ucontext_works=yes
1628   fi
1629 fi
1630
1631 if test "$coroutine" = ""; then
1632   if test "$mingw32" = "yes"; then
1633     coroutine=win32
1634   elif test "$ucontext_works" = "yes"; then
1635     coroutine=ucontext
1636   else
1637     coroutine=sigaltstack
1638   fi
1639 else
1640   case $coroutine in
1641   windows)
1642     if test "$mingw32" != "yes"; then
1643       error_exit "'windows' coroutine backend only valid for Windows"
1644     fi
1645     # Unfortunately the user visible backend name doesn't match the
1646     # coroutine-*.c filename for this case, so we have to adjust it here.
1647     coroutine=win32
1648     ;;
1649   ucontext)
1650     if test "$ucontext_works" != "yes"; then
1651       error_exit "'ucontext' backend requested but makecontext not available"
1652     fi
1653     ;;
1654   sigaltstack)
1655     if test "$mingw32" = "yes"; then
1656       error_exit "only the 'windows' coroutine backend is valid for Windows"
1657     fi
1658     ;;
1659   *)
1660     error_exit "unknown coroutine backend $coroutine"
1661     ;;
1662   esac
1663 fi
1664
1665 ##################################################
1666 # SafeStack
1667
1668
1669 if test "$safe_stack" = "yes"; then
1670 cat > $TMPC << EOF
1671 int main(void)
1672 {
1673 #if ! __has_feature(safe_stack)
1674 #error SafeStack Disabled
1675 #endif
1676     return 0;
1677 }
1678 EOF
1679   flag="-fsanitize=safe-stack"
1680   # Check that safe-stack is supported and enabled.
1681   if compile_prog "-Werror $flag" "$flag"; then
1682     # Flag needed both at compilation and at linking
1683     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1684     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1685   else
1686     error_exit "SafeStack not supported by your compiler"
1687   fi
1688   if test "$coroutine" != "ucontext"; then
1689     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1690   fi
1691 else
1692 cat > $TMPC << EOF
1693 int main(void)
1694 {
1695 #if defined(__has_feature)
1696 #if __has_feature(safe_stack)
1697 #error SafeStack Enabled
1698 #endif
1699 #endif
1700     return 0;
1701 }
1702 EOF
1703 if test "$safe_stack" = "no"; then
1704   # Make sure that safe-stack is disabled
1705   if ! compile_prog "-Werror" ""; then
1706     # SafeStack was already enabled, try to explicitly remove the feature
1707     flag="-fno-sanitize=safe-stack"
1708     if ! compile_prog "-Werror $flag" "$flag"; then
1709       error_exit "Configure cannot disable SafeStack"
1710     fi
1711     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1712     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1713   fi
1714 else # "$safe_stack" = ""
1715   # Set safe_stack to yes or no based on pre-existing flags
1716   if compile_prog "-Werror" ""; then
1717     safe_stack="no"
1718   else
1719     safe_stack="yes"
1720     if test "$coroutine" != "ucontext"; then
1721       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1722     fi
1723   fi
1724 fi
1725 fi
1726
1727 ########################################
1728 # check if ccache is interfering with
1729 # semantic analysis of macros
1730
1731 unset CCACHE_CPP2
1732 ccache_cpp2=no
1733 cat > $TMPC << EOF
1734 static const int Z = 1;
1735 #define fn() ({ Z; })
1736 #define TAUT(X) ((X) == Z)
1737 #define PAREN(X, Y) (X == Y)
1738 #define ID(X) (X)
1739 int main(void)
1740 {
1741     int x = 0, y = 0;
1742     x = ID(x);
1743     x = fn();
1744     fn();
1745     if (PAREN(x, y)) return 0;
1746     if (TAUT(Z)) return 0;
1747     return 0;
1748 }
1749 EOF
1750
1751 if ! compile_object "-Werror"; then
1752     ccache_cpp2=yes
1753 fi
1754
1755 #################################################
1756 # clang does not support glibc + FORTIFY_SOURCE.
1757
1758 if test "$fortify_source" != "no"; then
1759   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1760     fortify_source="no";
1761   elif test -n "$cxx" && has $cxx &&
1762        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1763     fortify_source="no";
1764   else
1765     fortify_source="yes"
1766   fi
1767 fi
1768
1769 ##########################################
1770 # checks for sanitizers
1771
1772 have_asan=no
1773 have_ubsan=no
1774 have_asan_iface_h=no
1775 have_asan_iface_fiber=no
1776
1777 if test "$sanitizers" = "yes" ; then
1778   write_c_skeleton
1779   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1780       have_asan=yes
1781   fi
1782
1783   # we could use a simple skeleton for flags checks, but this also
1784   # detect the static linking issue of ubsan, see also:
1785   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1786   cat > $TMPC << EOF
1787 int main(int argc, char **argv)
1788 {
1789     return argc + 1;
1790 }
1791 EOF
1792   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1793       have_ubsan=yes
1794   fi
1795
1796   if check_include "sanitizer/asan_interface.h" ; then
1797       have_asan_iface_h=yes
1798   fi
1799
1800   cat > $TMPC << EOF
1801 #include <sanitizer/asan_interface.h>
1802 int main(void) {
1803   __sanitizer_start_switch_fiber(0, 0, 0);
1804   return 0;
1805 }
1806 EOF
1807   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1808       have_asan_iface_fiber=yes
1809   fi
1810 fi
1811
1812 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1813 # keep it separate until that is not the case.
1814 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1815   error_exit "TSAN is not supported with other sanitiziers."
1816 fi
1817 have_tsan=no
1818 have_tsan_iface_fiber=no
1819 if test "$tsan" = "yes" ; then
1820   write_c_skeleton
1821   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1822       have_tsan=yes
1823   fi
1824   cat > $TMPC << EOF
1825 #include <sanitizer/tsan_interface.h>
1826 int main(void) {
1827   __tsan_create_fiber(0);
1828   return 0;
1829 }
1830 EOF
1831   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1832       have_tsan_iface_fiber=yes
1833   fi
1834 fi
1835
1836 ##########################################
1837 # functions to probe cross compilers
1838
1839 container="no"
1840 runc=""
1841 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1842     case $($python "$source_path"/tests/docker/docker.py probe) in
1843         *docker) container=docker ;;
1844         podman) container=podman ;;
1845         no) container=no ;;
1846     esac
1847     if test "$container" != "no"; then
1848         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1849         runc=$($python "$source_path"/tests/docker/docker.py probe)
1850     fi
1851 fi
1852
1853 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1854 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1855 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1856 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1857 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1858 : ${cross_prefix_armeb="$cross_prefix_arm"}
1859 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1860 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1861 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1862 : ${cross_prefix_i386="i686-linux-gnu-"}
1863 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1864 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1865 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1866 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1867 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1868 : ${cross_prefix_mips="mips-linux-gnu-"}
1869 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1870 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1871 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1872 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1873 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1874 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1875 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1876 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1877 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1878 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1879
1880 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1881 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1882 : ${cross_cc_armeb="$cross_cc_arm"}
1883 : ${cross_cc_cflags_armeb="-mbig-endian"}
1884 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1885 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1886 : ${cross_cc_cflags_i386="-m32"}
1887 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1888 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1889 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1890 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1891 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1892 : ${cross_cc_sparc="$cross_cc_sparc64"}
1893 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1894 : ${cross_cc_cflags_x86_64="-m64"}
1895
1896 compute_target_variable() {
1897   eval "$2="
1898   if eval test -n "\"\${cross_prefix_$1}\""; then
1899     if eval has "\"\${cross_prefix_$1}\$3\""; then
1900       eval "$2=\"\${cross_prefix_$1}\$3\""
1901     fi
1902   fi
1903 }
1904
1905 have_target() {
1906   for i; do
1907     case " $target_list " in
1908       *" $i "*) return 0;;
1909       *) ;;
1910     esac
1911   done
1912   return 1
1913 }
1914
1915 # probe_target_compiler TARGET
1916 #
1917 # Look for a compiler for the given target, either native or cross.
1918 # Set variables target_* if a compiler is found, and container_cross_*
1919 # if a Docker-based cross-compiler image is known for the target.
1920 # Set got_cross_cc to yes/no depending on whether a non-container-based
1921 # compiler was found.
1922 #
1923 # If TARGET is a user-mode emulation target, also set build_static to
1924 # "y" if static linking is possible.
1925 #
1926 probe_target_compiler() {
1927   # reset all output variables
1928   got_cross_cc=no
1929   container_image=
1930   container_hosts=
1931   container_cross_cc=
1932   container_cross_ar=
1933   container_cross_as=
1934   container_cross_ld=
1935   container_cross_nm=
1936   container_cross_objcopy=
1937   container_cross_ranlib=
1938   container_cross_strip=
1939
1940   # We shall skip configuring the target compiler if the user didn't
1941   # bother enabling an appropriate guest. This avoids building
1942   # extraneous firmware images and tests.
1943   if test "${target_list#*$1}" = "$1"; then
1944       return 1
1945   fi
1946
1947   target_arch=${1%%-*}
1948   case $target_arch in
1949     aarch64) container_hosts="x86_64 aarch64" ;;
1950     alpha) container_hosts=x86_64 ;;
1951     arm) container_hosts="x86_64 aarch64" ;;
1952     cris) container_hosts=x86_64 ;;
1953     hexagon) container_hosts=x86_64 ;;
1954     hppa) container_hosts=x86_64 ;;
1955     i386) container_hosts=x86_64 ;;
1956     loongarch64) container_hosts=x86_64 ;;
1957     m68k) container_hosts=x86_64 ;;
1958     microblaze) container_hosts=x86_64 ;;
1959     mips64el) container_hosts=x86_64 ;;
1960     mips64) container_hosts=x86_64 ;;
1961     mipsel) container_hosts=x86_64 ;;
1962     mips) container_hosts=x86_64 ;;
1963     nios2) container_hosts=x86_64 ;;
1964     ppc) container_hosts=x86_64 ;;
1965     ppc64|ppc64le) container_hosts=x86_64 ;;
1966     riscv64) container_hosts=x86_64 ;;
1967     s390x) container_hosts=x86_64 ;;
1968     sh4) container_hosts=x86_64 ;;
1969     sparc64) container_hosts=x86_64 ;;
1970     tricore) container_hosts=x86_64 ;;
1971     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1972     xtensa*) container_hosts=x86_64 ;;
1973   esac
1974
1975   for host in $container_hosts; do
1976     test "$container" != no || continue
1977     test "$host" = "$cpu" || continue
1978     case $target_arch in
1979       aarch64)
1980         # We don't have any bigendian build tools so we only use this for AArch64
1981         container_image=debian-arm64-cross
1982         container_cross_prefix=aarch64-linux-gnu-
1983         container_cross_cc=${container_cross_prefix}gcc-10
1984         ;;
1985       alpha)
1986         container_image=debian-alpha-cross
1987         container_cross_prefix=alpha-linux-gnu-
1988         ;;
1989       arm)
1990         # We don't have any bigendian build tools so we only use this for ARM
1991         container_image=debian-armhf-cross
1992         container_cross_prefix=arm-linux-gnueabihf-
1993         ;;
1994       cris)
1995         container_image=fedora-cris-cross
1996         container_cross_prefix=cris-linux-gnu-
1997         ;;
1998       hexagon)
1999         container_image=debian-hexagon-cross
2000         container_cross_prefix=hexagon-unknown-linux-musl-
2001         container_cross_cc=${container_cross_prefix}clang
2002         ;;
2003       hppa)
2004         container_image=debian-hppa-cross
2005         container_cross_prefix=hppa-linux-gnu-
2006         ;;
2007       i386)
2008         container_image=fedora-i386-cross
2009         container_cross_prefix=
2010         ;;
2011       loongarch64)
2012         container_image=debian-loongarch-cross
2013         container_cross_prefix=loongarch64-unknown-linux-gnu-
2014         ;;
2015       m68k)
2016         container_image=debian-m68k-cross
2017         container_cross_prefix=m68k-linux-gnu-
2018         ;;
2019       microblaze)
2020         container_image=debian-microblaze-cross
2021         container_cross_prefix=microblaze-linux-musl-
2022         ;;
2023       mips64el)
2024         container_image=debian-mips64el-cross
2025         container_cross_prefix=mips64el-linux-gnuabi64-
2026         ;;
2027       mips64)
2028         container_image=debian-mips64-cross
2029         container_cross_prefix=mips64-linux-gnuabi64-
2030         ;;
2031       mipsel)
2032         container_image=debian-mipsel-cross
2033         container_cross_prefix=mipsel-linux-gnu-
2034         ;;
2035       mips)
2036         container_image=debian-mips-cross
2037         container_cross_prefix=mips-linux-gnu-
2038         ;;
2039       nios2)
2040         container_image=debian-nios2-cross
2041         container_cross_prefix=nios2-linux-gnu-
2042         ;;
2043       ppc)
2044         container_image=debian-powerpc-test-cross
2045         container_cross_prefix=powerpc-linux-gnu-
2046         container_cross_cc=${container_cross_prefix}gcc-10
2047         ;;
2048       ppc64|ppc64le)
2049         container_image=debian-powerpc-test-cross
2050         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
2051         container_cross_cc=${container_cross_prefix}gcc-10
2052         ;;
2053       riscv64)
2054         container_image=debian-riscv64-test-cross
2055         container_cross_prefix=riscv64-linux-gnu-
2056         ;;
2057       s390x)
2058         container_image=debian-s390x-cross
2059         container_cross_prefix=s390x-linux-gnu-
2060         ;;
2061       sh4)
2062         container_image=debian-sh4-cross
2063         container_cross_prefix=sh4-linux-gnu-
2064         ;;
2065       sparc64)
2066         container_image=debian-sparc64-cross
2067         container_cross_prefix=sparc64-linux-gnu-
2068         ;;
2069       tricore)
2070         container_image=debian-tricore-cross
2071         container_cross_prefix=tricore-
2072         container_cross_as=tricore-as
2073         container_cross_ld=tricore-ld
2074         break
2075         ;;
2076       x86_64)
2077         container_image=debian-amd64-cross
2078         container_cross_prefix=x86_64-linux-gnu-
2079         ;;
2080       xtensa*)
2081         container_hosts=x86_64
2082         container_image=debian-xtensa-cross
2083
2084         # default to the dc232b cpu
2085         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2086         ;;
2087     esac
2088     : ${container_cross_cc:=${container_cross_prefix}gcc}
2089     : ${container_cross_ar:=${container_cross_prefix}ar}
2090     : ${container_cross_as:=${container_cross_prefix}as}
2091     : ${container_cross_ld:=${container_cross_prefix}ld}
2092     : ${container_cross_nm:=${container_cross_prefix}nm}
2093     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2094     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2095     : ${container_cross_strip:=${container_cross_prefix}strip}
2096   done
2097
2098   try=cross
2099   case "$target_arch:$cpu" in
2100     aarch64_be:aarch64 | \
2101     armeb:arm | \
2102     i386:x86_64 | \
2103     mips*:mips64 | \
2104     ppc*:ppc64 | \
2105     sparc:sparc64 | \
2106     "$cpu:$cpu")
2107       try='native cross' ;;
2108   esac
2109   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2110   for thistry in $try; do
2111     case $thistry in
2112     native)
2113       target_cc=$cc
2114       target_ccas=$ccas
2115       target_ar=$ar
2116       target_as=$as
2117       target_ld=$ld
2118       target_nm=$nm
2119       target_objcopy=$objcopy
2120       target_ranlib=$ranlib
2121       target_strip=$strip
2122       ;;
2123     cross)
2124       target_cc=
2125       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2126         if eval has "\"\${cross_cc_$target_arch}\""; then
2127           eval "target_cc=\"\${cross_cc_$target_arch}\""
2128         fi
2129       else
2130         compute_target_variable $target_arch target_cc gcc
2131       fi
2132       target_ccas=$target_cc
2133       compute_target_variable $target_arch target_ar ar
2134       compute_target_variable $target_arch target_as as
2135       compute_target_variable $target_arch target_ld ld
2136       compute_target_variable $target_arch target_nm nm
2137       compute_target_variable $target_arch target_objcopy objcopy
2138       compute_target_variable $target_arch target_ranlib ranlib
2139       compute_target_variable $target_arch target_strip strip
2140       ;;
2141     esac
2142
2143     if test -n "$target_cc"; then
2144       case $target_arch in
2145         i386|x86_64)
2146           if $target_cc --version | grep -qi "clang"; then
2147             continue
2148           fi
2149           ;;
2150       esac
2151     elif test -n "$target_as" && test -n "$target_ld"; then
2152       # Special handling for assembler only targets
2153       case $target in
2154         tricore-softmmu)
2155           build_static=
2156           got_cross_cc=yes
2157           break
2158           ;;
2159         *)
2160           continue
2161           ;;
2162       esac
2163     else
2164       continue
2165     fi
2166
2167     write_c_skeleton
2168     case $1 in
2169       *-softmmu)
2170         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2171           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2172           got_cross_cc=yes
2173           break
2174         fi
2175         ;;
2176       *)
2177         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2178           build_static=y
2179           got_cross_cc=yes
2180           break
2181         fi
2182         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2183           build_static=
2184           got_cross_cc=yes
2185           break
2186         fi
2187         ;;
2188     esac
2189   done
2190   if test $got_cross_cc != yes; then
2191     build_static=
2192     target_cc=
2193     target_ccas=
2194     target_ar=
2195     target_as=
2196     target_ld=
2197     target_nm=
2198     target_objcopy=
2199     target_ranlib=
2200     target_strip=
2201   fi
2202   test -n "$target_cc"
2203 }
2204
2205 write_target_makefile() {
2206   echo "EXTRA_CFLAGS=$target_cflags"
2207   if test -z "$target_cc" && test -z "$target_as"; then
2208     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2209     echo "$1: docker-image-$container_image" >> Makefile.prereqs
2210     if test -n "$container_cross_cc"; then
2211       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2212       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2213     fi
2214     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2215     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2216     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2217     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2218     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2219     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2220     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2221   else
2222     if test -n "$target_cc"; then
2223       echo "CC=$target_cc"
2224       echo "CCAS=$target_ccas"
2225     fi
2226     if test -n "$target_ar"; then
2227       echo "AR=$target_ar"
2228     fi
2229     if test -n "$target_as"; then
2230       echo "AS=$target_as"
2231     fi
2232     if test -n "$target_ld"; then
2233       echo "LD=$target_ld"
2234     fi
2235     if test -n "$target_nm"; then
2236       echo "NM=$target_nm"
2237     fi
2238     if test -n "$target_objcopy"; then
2239       echo "OBJCOPY=$target_objcopy"
2240     fi
2241     if test -n "$target_ranlib"; then
2242       echo "RANLIB=$target_ranlib"
2243     fi
2244     if test -n "$target_strip"; then
2245       echo "STRIP=$target_strip"
2246     fi
2247   fi
2248 }
2249
2250 ##########################################
2251 # check for vfio_user_server
2252
2253 case "$vfio_user_server" in
2254   enabled )
2255     if test "$git_submodules_action" != "ignore"; then
2256       git_submodules="${git_submodules} subprojects/libvfio-user"
2257     fi
2258     ;;
2259 esac
2260
2261 ##########################################
2262 # End of CC checks
2263 # After here, no more $cc or $ld runs
2264
2265 write_c_skeleton
2266
2267 if test "$fortify_source" = "yes" ; then
2268   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2269 fi
2270
2271 if test "$have_asan" = "yes"; then
2272   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2273   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2274   if test "$have_asan_iface_h" = "no" ; then
2275       echo "ASAN build enabled, but ASAN header missing." \
2276            "Without code annotation, the report may be inferior."
2277   elif test "$have_asan_iface_fiber" = "no" ; then
2278       echo "ASAN build enabled, but ASAN header is too old." \
2279            "Without code annotation, the report may be inferior."
2280   fi
2281 fi
2282 if test "$have_tsan" = "yes" ; then
2283   if test "$have_tsan_iface_fiber" = "yes" ; then
2284     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2285     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2286   else
2287     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2288   fi
2289 elif test "$tsan" = "yes" ; then
2290   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2291 fi
2292 if test "$have_ubsan" = "yes"; then
2293   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2294   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2295 fi
2296
2297 #######################################
2298 # cross-compiled firmware targets
2299
2300 # Set up build tree symlinks that point back into the source tree
2301 # (these can be both files and directories).
2302 # Caution: avoid adding files or directories here using wildcards. This
2303 # will result in problems later if a new file matching the wildcard is
2304 # added to the source tree -- nothing will cause configure to be rerun
2305 # so the build tree will be missing the link back to the new file, and
2306 # tests might fail. Prefer to keep the relevant files in their own
2307 # directory and symlink the directory instead.
2308 LINKS="Makefile"
2309 LINKS="$LINKS docs/config"
2310 LINKS="$LINKS pc-bios/optionrom/Makefile"
2311 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2312 LINKS="$LINKS pc-bios/vof/Makefile"
2313 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2314 LINKS="$LINKS tests/avocado tests/data"
2315 LINKS="$LINKS tests/qemu-iotests/check"
2316 LINKS="$LINKS python"
2317 LINKS="$LINKS contrib/plugins/Makefile "
2318 for f in $LINKS ; do
2319     if [ -e "$source_path/$f" ]; then
2320         mkdir -p "$(dirname ./"$f")"
2321         symlink "$source_path/$f" "$f"
2322     fi
2323 done
2324
2325 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2326
2327 # Mac OS X ships with a broken assembler
2328 roms=
2329 if have_target i386-softmmu x86_64-softmmu && \
2330         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2331         test "$targetos" != "haiku" && \
2332         probe_target_compiler i386-softmmu; then
2333     roms="pc-bios/optionrom"
2334     config_mak=pc-bios/optionrom/config.mak
2335     echo "# Automatically generated by configure - do not modify" > $config_mak
2336     echo "TOPSRC_DIR=$source_path" >> $config_mak
2337     write_target_makefile >> $config_mak
2338 fi
2339
2340 if have_target ppc-softmmu ppc64-softmmu && \
2341         probe_target_compiler ppc-softmmu; then
2342     roms="$roms pc-bios/vof"
2343     config_mak=pc-bios/vof/config.mak
2344     echo "# Automatically generated by configure - do not modify" > $config_mak
2345     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2346     write_target_makefile >> $config_mak
2347 fi
2348
2349 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2350 # (which is the lowest architecture level that Clang supports)
2351 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2352   write_c_skeleton
2353   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2354   has_z900=$?
2355   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2356     if [ $has_z900 != 0 ]; then
2357       echo "WARNING: Your compiler does not support the z900!"
2358       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2359     fi
2360     roms="$roms pc-bios/s390-ccw"
2361     config_mak=pc-bios/s390-ccw/config-host.mak
2362     echo "# Automatically generated by configure - do not modify" > $config_mak
2363     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2364     write_target_makefile >> $config_mak
2365     # SLOF is required for building the s390-ccw firmware on s390x,
2366     # since it is using the libnet code from SLOF for network booting.
2367     git_submodules="${git_submodules} roms/SLOF"
2368   fi
2369 fi
2370
2371 #######################################
2372 # generate config-host.mak
2373
2374 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2375     exit 1
2376 fi
2377
2378 config_host_mak="config-host.mak"
2379
2380 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2381 echo >> $config_host_mak
2382
2383 echo all: >> $config_host_mak
2384 echo "GIT=$git" >> $config_host_mak
2385 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2386 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2387
2388 if test "$debug_tcg" = "yes" ; then
2389   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2390 fi
2391 if test "$mingw32" = "yes" ; then
2392   echo "CONFIG_WIN32=y" >> $config_host_mak
2393   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2394   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2395   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2396 else
2397   echo "CONFIG_POSIX=y" >> $config_host_mak
2398 fi
2399
2400 if test "$linux" = "yes" ; then
2401   echo "CONFIG_LINUX=y" >> $config_host_mak
2402 fi
2403
2404 if test "$darwin" = "yes" ; then
2405   echo "CONFIG_DARWIN=y" >> $config_host_mak
2406 fi
2407
2408 if test "$solaris" = "yes" ; then
2409   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2410 fi
2411 if test "$static" = "yes" ; then
2412   echo "CONFIG_STATIC=y" >> $config_host_mak
2413 fi
2414 echo "SRC_PATH=$source_path" >> $config_host_mak
2415 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2416 if test "$modules" = "yes"; then
2417   echo "CONFIG_MODULES=y" >> $config_host_mak
2418 fi
2419
2420 # XXX: suppress that
2421 if [ "$bsd" = "yes" ] ; then
2422   echo "CONFIG_BSD=y" >> $config_host_mak
2423 fi
2424
2425 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2426
2427 if test "$have_asan_iface_fiber" = "yes" ; then
2428     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2429 fi
2430
2431 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2432     echo "CONFIG_TSAN=y" >> $config_host_mak
2433 fi
2434
2435 if test "$plugins" = "yes" ; then
2436     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2437 fi
2438
2439 if test -n "$gdb_bin"; then
2440     gdb_version=$($gdb_bin --version | head -n 1)
2441     if version_ge ${gdb_version##* } 9.1; then
2442         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2443         gdb_arches=$("$source_path/scripts/probe-gdb-support.py" $gdb_bin)
2444     else
2445         gdb_bin=""
2446     fi
2447 fi
2448
2449 if test "$container" != no; then
2450     echo "ENGINE=$container" >> $config_host_mak
2451     echo "RUNC=$runc" >> $config_host_mak
2452 fi
2453 echo "ROMS=$roms" >> $config_host_mak
2454 echo "MAKE=$make" >> $config_host_mak
2455 echo "PYTHON=$python" >> $config_host_mak
2456 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2457 echo "MESON=$meson" >> $config_host_mak
2458 echo "NINJA=$ninja" >> $config_host_mak
2459 echo "CC=$cc" >> $config_host_mak
2460 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2461 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2462 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2463 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2464 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2465 echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak
2466 if test "$glib_has_gslice" = "yes" ; then
2467     echo "HAVE_GLIB_WITH_SLICE_ALLOCATOR=y" >> $config_host_mak
2468 fi
2469 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2470 echo "EXESUF=$EXESUF" >> $config_host_mak
2471
2472 # use included Linux headers
2473 if test "$linux" = "yes" ; then
2474   mkdir -p linux-headers
2475   case "$cpu" in
2476   i386|x86_64)
2477     linux_arch=x86
2478     ;;
2479   ppc|ppc64)
2480     linux_arch=powerpc
2481     ;;
2482   s390x)
2483     linux_arch=s390
2484     ;;
2485   aarch64)
2486     linux_arch=arm64
2487     ;;
2488   loongarch*)
2489     linux_arch=loongarch
2490     ;;
2491   mips64)
2492     linux_arch=mips
2493     ;;
2494   *)
2495     # For most CPUs the kernel architecture name and QEMU CPU name match.
2496     linux_arch="$cpu"
2497     ;;
2498   esac
2499     # For non-KVM architectures we will not have asm headers
2500     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2501       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2502     fi
2503 fi
2504
2505 for target in $target_list; do
2506     target_dir="$target"
2507     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2508     mkdir -p "$target_dir"
2509     case $target in
2510         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2511         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2512     esac
2513 done
2514
2515 if test "$default_targets" = "yes"; then
2516   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2517 fi
2518
2519 if test "$ccache_cpp2" = "yes"; then
2520   echo "export CCACHE_CPP2=y" >> $config_host_mak
2521 fi
2522
2523 if test "$safe_stack" = "yes"; then
2524   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2525 fi
2526
2527 # tests/tcg configuration
2528 (config_host_mak=tests/tcg/config-host.mak
2529 mkdir -p tests/tcg
2530 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2531 echo "SRC_PATH=$source_path" >> $config_host_mak
2532 echo "HOST_CC=$host_cc" >> $config_host_mak
2533
2534 # versioned checked in the main config_host.mak above
2535 if test -n "$gdb_bin"; then
2536     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2537 fi
2538 if test "$plugins" = "yes" ; then
2539     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2540 fi
2541
2542 tcg_tests_targets=
2543 for target in $target_list; do
2544   arch=${target%%-*}
2545
2546   case $target in
2547     xtensa*-linux-user)
2548       # the toolchain is not complete with headers, only build softmmu tests
2549       continue
2550       ;;
2551     *-softmmu)
2552       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2553       qemu="qemu-system-$arch"
2554       ;;
2555     *-linux-user|*-bsd-user)
2556       qemu="qemu-$arch"
2557       ;;
2558   esac
2559
2560   if probe_target_compiler $target || test -n "$container_image"; then
2561       test -n "$container_image" && build_static=y
2562       mkdir -p "tests/tcg/$target"
2563       config_target_mak=tests/tcg/$target/config-target.mak
2564       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2565       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2566       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2567       echo "TARGET=$target" >> "$config_target_mak"
2568       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2569       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2570       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2571
2572       # will GDB work with these binaries?
2573       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
2574           echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
2575       fi
2576
2577       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2578       tcg_tests_targets="$tcg_tests_targets $target"
2579   fi
2580 done
2581
2582 if test "$tcg" = "enabled"; then
2583     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2584 fi
2585 )
2586
2587 if test "$skip_meson" = no; then
2588   cross="config-meson.cross.new"
2589   meson_quote() {
2590     test $# = 0 && return
2591     echo "'$(echo $* | sed "s/ /','/g")'"
2592   }
2593
2594   echo "# Automatically generated by configure - do not modify" > $cross
2595   echo "[properties]" >> $cross
2596
2597   # unroll any custom device configs
2598   for a in $device_archs; do
2599       eval "c=\$devices_${a}"
2600       echo "${a}-softmmu = '$c'" >> $cross
2601   done
2602
2603   echo "[built-in options]" >> $cross
2604   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2605   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2606   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2607   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2608   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2609   echo "[binaries]" >> $cross
2610   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2611   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2612   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2613   echo "ar = [$(meson_quote $ar)]" >> $cross
2614   echo "nm = [$(meson_quote $nm)]" >> $cross
2615   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2616   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2617   if has $sdl2_config; then
2618     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2619   fi
2620   echo "strip = [$(meson_quote $strip)]" >> $cross
2621   echo "widl = [$(meson_quote $widl)]" >> $cross
2622   echo "windres = [$(meson_quote $windres)]" >> $cross
2623   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2624   if test "$cross_compile" = "yes"; then
2625     cross_arg="--cross-file config-meson.cross"
2626     echo "[host_machine]" >> $cross
2627     echo "system = '$targetos'" >> $cross
2628     case "$cpu" in
2629         i386)
2630             echo "cpu_family = 'x86'" >> $cross
2631             ;;
2632         *)
2633             echo "cpu_family = '$cpu'" >> $cross
2634             ;;
2635     esac
2636     echo "cpu = '$cpu'" >> $cross
2637     if test "$bigendian" = "yes" ; then
2638         echo "endian = 'big'" >> $cross
2639     else
2640         echo "endian = 'little'" >> $cross
2641     fi
2642   else
2643     cross_arg="--native-file config-meson.cross"
2644   fi
2645   mv $cross config-meson.cross
2646
2647   rm -rf meson-private meson-info meson-logs
2648
2649   # Prevent meson from automatically downloading wrapped subprojects when missing.
2650   # You can use 'meson subprojects download' before running configure.
2651   meson_option_add "--wrap-mode=nodownload"
2652
2653   # Built-in options
2654   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2655   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2656   test "$pie" = no && meson_option_add -Db_pie=false
2657   test "$werror" = yes && meson_option_add -Dwerror=true
2658
2659   # QEMU options
2660   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2661   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2662   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2663   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2664   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2665   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2666   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2667   run_meson() {
2668     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2669   }
2670   eval run_meson $meson_options
2671   if test "$?" -ne 0 ; then
2672       error_exit "meson setup failed"
2673   fi
2674 fi
2675
2676 # Save the configure command line for later reuse.
2677 cat <<EOD >config.status
2678 #!/bin/sh
2679 # Generated by configure.
2680 # Run this file to recreate the current configuration.
2681 # Compiler output produced by configure, useful for debugging
2682 # configure, is in config.log if it exists.
2683 EOD
2684
2685 preserve_env() {
2686     envname=$1
2687
2688     eval envval=\$$envname
2689
2690     if test -n "$envval"
2691     then
2692         echo "$envname='$envval'" >> config.status
2693         echo "export $envname" >> config.status
2694     else
2695         echo "unset $envname" >> config.status
2696     fi
2697 }
2698
2699 # Preserve various env variables that influence what
2700 # features/build target configure will detect
2701 preserve_env AR
2702 preserve_env AS
2703 preserve_env CC
2704 preserve_env CFLAGS
2705 preserve_env CXX
2706 preserve_env CXXFLAGS
2707 preserve_env LD
2708 preserve_env LDFLAGS
2709 preserve_env LD_LIBRARY_PATH
2710 preserve_env MAKE
2711 preserve_env NM
2712 preserve_env OBJCFLAGS
2713 preserve_env OBJCOPY
2714 preserve_env PATH
2715 preserve_env PKG_CONFIG
2716 preserve_env PKG_CONFIG_LIBDIR
2717 preserve_env PKG_CONFIG_PATH
2718 preserve_env PYTHON
2719 preserve_env QEMU_GA_MANUFACTURER
2720 preserve_env QEMU_GA_DISTRO
2721 preserve_env QEMU_GA_VERSION
2722 preserve_env SDL2_CONFIG
2723 preserve_env SMBD
2724 preserve_env STRIP
2725 preserve_env WIDL
2726 preserve_env WINDRES
2727 preserve_env WINDMC
2728
2729 printf "exec" >>config.status
2730 for i in "$0" "$@"; do
2731   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2732 done
2733 echo ' "$@"' >>config.status
2734 chmod +x config.status
2735
2736 rm -r "$TMPDIR1"