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     explicit_python=no
 629     # A bare 'python' is traditionally python 2.x, but some distros
 630     # have it as python 3.x, so check in both places.
 631     for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7 python3.6; do
 632         if has "$binary"; then
 633             python=$(command -v "$binary")
 634             if check_py_version "$python"; then
 635                 # This one is good.
 636                 first_python=
 637                 break
 638             else
 639                 first_python=$python
 640             fi
 641         fi
 642     done
 643 else
 644     # Same as above, but only check the environment variable.
 645     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 646     python=$(command -v "$PYTHON")
 647     explicit_python=yes
 648     if check_py_version "$python"; then
 649         # This one is good.
 650         first_python=
 651     else
 652         first_python=$first_python
 653     fi
 654 fi
 655
 656 # Check for ancillary tools used in testing
 657 genisoimage=
 658 for binary in genisoimage mkisofs
 659 do
 660     if has $binary
 661     then
 662         genisoimage=$(command -v "$binary")
 663         break
 664     fi
 665 done
 666
 667 if test "$mingw32" = "yes" ; then
 668   EXESUF=".exe"
 669   # MinGW needs -mthreads for TLS and macro _MT.
 670   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 671   prefix="/qemu"
 672   bindir=""
 673   qemu_suffix=""
 674 fi
 675
 676 werror=""
 677
 678 meson_option_build_array() {
 679   printf '['
 680   (if test "$targetos" = windows; then
 681     IFS=\;
 682   else
 683     IFS=:
 684   fi
 685   for e in $1; do
 686     printf '"""'
 687     # backslash escape any '\' and '"' characters
 688     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 689     printf '""",'
 690   done)
 691   printf ']\n'
 692 }
 693
 694 . "$source_path/scripts/meson-buildoptions.sh"
 695
 696 meson_options=
 697 meson_option_add() {
 698   meson_options="$meson_options $(quote_sh "$1")"
 699 }
 700 meson_option_parse() {
 701   meson_options="$meson_options $(_meson_option_parse "$@")"
 702   if test $? -eq 1; then
 703     echo "ERROR: unknown option $1"
 704     echo "Try '$0 --help' for more information"
 705     exit 1
 706   fi
 707 }
 708
 709 for opt do
 710   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 711   case "$opt" in
 712   --help|-h) show_help=yes
 713   ;;
 714   --version|-V) exec cat "$source_path/VERSION"
 715   ;;
 716   --prefix=*) prefix="$optarg"
 717   ;;
 718   --cross-prefix=*)
 719   ;;
 720   --cc=*)
 721   ;;
 722   --host-cc=*) host_cc="$optarg"
 723   ;;
 724   --cxx=*)
 725   ;;
 726   --objcc=*)
 727   ;;
 728   --make=*) make="$optarg"
 729   ;;
 730   --install=*)
 731   ;;
 732   --python=*) python="$optarg" ; explicit_python=yes
 733   ;;
 734   --skip-meson) skip_meson=yes
 735   ;;
 736   --meson=*) meson="$optarg"
 737   ;;
 738   --ninja=*) ninja="$optarg"
 739   ;;
 740   --smbd=*) smbd="$optarg"
 741   ;;
 742   --extra-cflags=*)
 743   ;;
 744   --extra-cxxflags=*)
 745   ;;
 746   --extra-objcflags=*)
 747   ;;
 748   --extra-ldflags=*)
 749   ;;
 750   --cross-cc-*)
 751   ;;
 752   --cross-prefix-*)
 753   ;;
 754   --enable-debug-info) meson_option_add -Ddebug=true
 755   ;;
 756   --disable-debug-info) meson_option_add -Ddebug=false
 757   ;;
 758   --enable-modules)
 759       modules="yes"
 760   ;;
 761   --disable-modules)
 762       modules="no"
 763   ;;
 764   --cpu=*)
 765   ;;
 766   --target-list=*) target_list="$optarg"
 767                    if test "$target_list_exclude"; then
 768                        error_exit "Can't mix --target-list with --target-list-exclude"
 769                    fi
 770   ;;
 771   --target-list-exclude=*) target_list_exclude="$optarg"
 772                    if test "$target_list"; then
 773                        error_exit "Can't mix --target-list-exclude with --target-list"
 774                    fi
 775   ;;
 776   --with-default-devices) meson_option_add -Ddefault_devices=true
 777   ;;
 778   --without-default-devices) meson_option_add -Ddefault_devices=false
 779   ;;
 780   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 781   ;;
 782   --with-devices-*) device_arch=${opt#--with-devices-};
 783                     device_arch=${device_arch%%=*}
 784                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 785                     if test -f "$cf"; then
 786                         device_archs="$device_archs $device_arch"
 787                         eval "devices_${device_arch}=\$optarg"
 788                     else
 789                         error_exit "File $cf does not exist"
 790                     fi
 791   ;;
 792   --without-default-features) # processed above
 793   ;;
 794   --static)
 795     static="yes"
 796     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 797   ;;
 798   --bindir=*) bindir="$optarg"
 799   ;;
 800   --with-suffix=*) qemu_suffix="$optarg"
 801   ;;
 802   --host=*|--build=*|\
 803   --disable-dependency-tracking|\
 804   --sbindir=*|--sharedstatedir=*|\
 805   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 806   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 807     # These switches are silently ignored, for compatibility with
 808     # autoconf-generated configure scripts. This allows QEMU's
 809     # configure to be used by RPM and similar macros that set
 810     # lots of directory switches by default.
 811   ;;
 812   --enable-debug-tcg) debug_tcg="yes"
 813   ;;
 814   --disable-debug-tcg) debug_tcg="no"
 815   ;;
 816   --enable-debug)
 817       # Enable debugging options that aren't excessively noisy
 818       debug_tcg="yes"
 819       meson_option_parse --enable-debug-graph-lock ""
 820       meson_option_parse --enable-debug-mutex ""
 821       meson_option_add -Doptimization=0
 822       fortify_source="no"
 823   ;;
 824   --enable-sanitizers) sanitizers="yes"
 825   ;;
 826   --disable-sanitizers) sanitizers="no"
 827   ;;
 828   --enable-tsan) tsan="yes"
 829   ;;
 830   --disable-tsan) tsan="no"
 831   ;;
 832   --disable-tcg) tcg="disabled"
 833                  plugins="no"
 834   ;;
 835   --enable-tcg) tcg="enabled"
 836   ;;
 837   --disable-system) softmmu="no"
 838   ;;
 839   --enable-system) softmmu="yes"
 840   ;;
 841   --disable-user)
 842       linux_user="no" ;
 843       bsd_user="no" ;
 844   ;;
 845   --enable-user) ;;
 846   --disable-linux-user) linux_user="no"
 847   ;;
 848   --enable-linux-user) linux_user="yes"
 849   ;;
 850   --disable-bsd-user) bsd_user="no"
 851   ;;
 852   --enable-bsd-user) bsd_user="yes"
 853   ;;
 854   --enable-pie) pie="yes"
 855   ;;
 856   --disable-pie) pie="no"
 857   ;;
 858   --enable-werror) werror="yes"
 859   ;;
 860   --disable-werror) werror="no"
 861   ;;
 862   --enable-stack-protector) stack_protector="yes"
 863   ;;
 864   --disable-stack-protector) stack_protector="no"
 865   ;;
 866   --enable-safe-stack) safe_stack="yes"
 867   ;;
 868   --disable-safe-stack) safe_stack="no"
 869   ;;
 870   --enable-cfi)
 871       cfi="true";
 872       meson_option_add -Db_lto=true
 873   ;;
 874   --disable-cfi) cfi="false"
 875   ;;
 876   --disable-fdt) fdt="disabled"
 877   ;;
 878   --enable-fdt) fdt="enabled"
 879   ;;
 880   --enable-fdt=git) fdt="internal"
 881   ;;
 882   --enable-fdt=*) fdt="$optarg"
 883   ;;
 884   --with-coroutine=*) coroutine="$optarg"
 885   ;;
 886   --with-git=*) git="$optarg"
 887   ;;
 888   --with-git-submodules=*)
 889       git_submodules_action="$optarg"
 890   ;;
 891   --enable-plugins) if test "$mingw32" = "yes"; then
 892                         error_exit "TCG plugins not currently supported on Windows platforms"
 893                     else
 894                         plugins="yes"
 895                     fi
 896   ;;
 897   --disable-plugins) plugins="no"
 898   ;;
 899   --enable-containers) use_containers="yes"
 900   ;;
 901   --disable-containers) use_containers="no"
 902   ;;
 903   --gdb=*) gdb_bin="$optarg"
 904   ;;
 905   --enable-vfio-user-server) vfio_user_server="enabled"
 906   ;;
 907   --disable-vfio-user-server) vfio_user_server="disabled"
 908   ;;
 909   # everything else has the same name in configure and meson
 910   --*) meson_option_parse "$opt" "$optarg"
 911   ;;
 912   esac
 913 done
 914
 915 # test for any invalid configuration combinations
 916 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 917     error_exit "Can't enable plugins on non-TCG builds"
 918 fi
 919
 920 case $git_submodules_action in
 921     update|validate)
 922         if test ! -e "$source_path/.git"; then
 923             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 924             exit 1
 925         fi
 926     ;;
 927     ignore)
 928         if ! test -f "$source_path/ui/keycodemapdb/README"
 929         then
 930             echo
 931             echo "ERROR: missing GIT submodules"
 932             echo
 933             if test -e "$source_path/.git"; then
 934                 echo "--with-git-submodules=ignore specified but submodules were not"
 935                 echo "checked out.  Please initialize and update submodules."
 936             else
 937                 echo "This is not a GIT checkout but module content appears to"
 938                 echo "be missing. Do not use 'git archive' or GitHub download links"
 939                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 940                 echo "supported with source archives linked from:"
 941                 echo
 942                 echo "  https://www.qemu.org/download/#source"
 943                 echo
 944                 echo "Developers working with GIT can use scripts/archive-source.sh"
 945                 echo "if they need to create valid source archives."
 946             fi
 947             echo
 948             exit 1
 949         fi
 950     ;;
 951     *)
 952         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 953         exit 1
 954     ;;
 955 esac
 956
 957 default_target_list=""
 958 mak_wilds=""
 959
 960 if [ "$linux_user" != no ]; then
 961     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 962         linux_user=yes
 963     elif [ "$linux_user" = yes ]; then
 964         error_exit "linux-user not supported on this architecture"
 965     fi
 966 fi
 967 if [ "$bsd_user" != no ]; then
 968     if [ "$bsd_user" = "" ]; then
 969         test $targetos = freebsd && bsd_user=yes
 970     fi
 971     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 972         error_exit "bsd-user not supported on this host OS"
 973     fi
 974 fi
 975 if [ "$softmmu" = "yes" ]; then
 976     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 977 fi
 978 if [ "$linux_user" = "yes" ]; then
 979     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 980 fi
 981 if [ "$bsd_user" = "yes" ]; then
 982     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 983 fi
 984
 985 for config in $mak_wilds; do
 986     target="$(basename "$config" .mak)"
 987     if echo "$target_list_exclude" | grep -vq "$target"; then
 988         default_target_list="${default_target_list} $target"
 989     fi
 990 done
 991
 992 if test x"$show_help" = x"yes" ; then
 993 cat << EOF
 994
 995 Usage: configure [options]
 996 Options: [defaults in brackets after descriptions]
 997
 998 Standard options:
 999   --help                   print this message
1000   --prefix=PREFIX          install in PREFIX [$prefix]
1001   --target-list=LIST       set target list (default: build all)
1002 $(echo Available targets: $default_target_list | \
1003   fold -s -w 53 | sed -e 's/^/                           /')
1004   --target-list-exclude=LIST exclude a set of targets from the default target-list
1005
1006 Advanced options (experts only):
1007   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1008   --cc=CC                  use C compiler CC [$cc]
1009   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1010                            build time
1011   --cxx=CXX                use C++ compiler CXX [$cxx]
1012   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1013   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1014   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1015   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1016   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1017   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1018   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1019   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1020   --make=MAKE              use specified make [$make]
1021   --python=PYTHON          use specified python [$python]
1022   --meson=MESON            use specified meson [$meson]
1023   --ninja=NINJA            use specified ninja [$ninja]
1024   --smbd=SMBD              use specified smbd [$smbd]
1025   --with-git=GIT           use specified git [$git]
1026   --with-git-submodules=update   update git submodules (default if .git dir exists)
1027   --with-git-submodules=validate fail if git submodules are not up to date
1028   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1029   --static                 enable static build [$static]
1030   --bindir=PATH            install binaries in PATH
1031   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1032   --without-default-features default all --enable-* options to "disabled"
1033   --without-default-devices  do not include any device that is not needed to
1034                            start the emulator (only use if you are including
1035                            desired devices in configs/devices/)
1036   --with-devices-ARCH=NAME override default configs/devices
1037   --enable-debug           enable common debug build options
1038   --enable-sanitizers      enable default sanitizers
1039   --enable-tsan            enable thread sanitizer
1040   --disable-werror         disable compilation abort on warning
1041   --disable-stack-protector disable compiler-provided stack protection
1042   --cpu=CPU                Build for host CPU [$cpu]
1043   --with-coroutine=BACKEND coroutine backend. Supported options:
1044                            ucontext, sigaltstack, windows
1045   --enable-plugins
1046                            enable plugins via shared library loading
1047   --disable-containers     don't use containers for cross-building
1048   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1049 EOF
1050   meson_options_help
1051 cat << EOF
1052   system          all system emulation targets
1053   user            supported user emulation targets
1054   linux-user      all linux usermode emulation targets
1055   bsd-user        all BSD usermode emulation targets
1056   pie             Position Independent Executables
1057   modules         modules support (non-Windows)
1058   debug-tcg       TCG debugging (default is disabled)
1059   debug-info      debugging information
1060   safe-stack      SafeStack Stack Smash Protection. Depends on
1061                   clang/llvm and requires coroutine backend ucontext.
1062
1063 NOTE: The object files are built at the place where configure is launched
1064 EOF
1065 exit 0
1066 fi
1067
1068 # Remove old dependency files to make sure that they get properly regenerated
1069 rm -f ./*/config-devices.mak.d
1070
1071 if test -z "$python"
1072 then
1073     # If first_python is set, there was a binary somewhere even though
1074     # it was not suitable.  Use it for the error message.
1075     if test -n "$first_python"; then
1076         error_exit "Cannot use '$first_python', Python >= 3.6 is required." \
1077             "Use --python=/path/to/python to specify a supported Python."
1078     else
1079         error_exit "Python not found. Use --python=/path/to/python"
1080     fi
1081 fi
1082
1083 if ! has "$make"
1084 then
1085     error_exit "GNU make ($make) not found"
1086 fi
1087
1088 if ! check_py_version "$python"; then
1089   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1090       "Use --python=/path/to/python to specify a supported Python."
1091 fi
1092
1093 # Resolve PATH + suppress writing compiled files
1094 python="$(command -v "$python") -B"
1095
1096 has_meson() {
1097   local python_dir=$(dirname "$python")
1098   # PEP405: pyvenv.cfg is either adjacent to the Python executable
1099   # or one directory above
1100   if test -f $python_dir/pyvenv.cfg || test -f $python_dir/../pyvenv.cfg; then
1101     # Ensure that Meson and Python come from the same virtual environment
1102     test -x "$python_dir/meson" &&
1103       test "$(command -v meson)" -ef "$python_dir/meson"
1104   else
1105     has meson
1106   fi
1107 }
1108
1109 if test -z "$meson"; then
1110     if test "$explicit_python" = no && has_meson && version_ge "$(meson --version)" 0.61.5; then
1111         meson=meson
1112     elif test "$git_submodules_action" != 'ignore' ; then
1113         meson=git
1114     elif test -e "${source_path}/meson/meson.py" ; then
1115         meson=internal
1116     else
1117         if test "$explicit_python" = yes; then
1118             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1119         else
1120             error_exit "Meson not found.  Use --meson=/path/to/meson"
1121         fi
1122     fi
1123 else
1124     # Meson uses its own Python interpreter to invoke other Python scripts,
1125     # but the user wants to use the one they specified with --python.
1126     #
1127     # We do not want to override the distro Python interpreter (and sometimes
1128     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1129     # just require --meson=git|internal together with --python.
1130     if test "$explicit_python" = yes; then
1131         case "$meson" in
1132             git | internal) ;;
1133             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1134         esac
1135     fi
1136 fi
1137
1138 if test "$meson" = git; then
1139     git_submodules="${git_submodules} meson"
1140 fi
1141
1142 case "$meson" in
1143     git | internal)
1144         meson="$python ${source_path}/meson/meson.py"
1145         ;;
1146     *) meson=$(command -v "$meson") ;;
1147 esac
1148
1149 # Probe for ninja
1150
1151 if test -z "$ninja"; then
1152     for c in ninja ninja-build samu; do
1153         if has $c; then
1154             ninja=$(command -v "$c")
1155             break
1156         fi
1157     done
1158     if test -z "$ninja"; then
1159       error_exit "Cannot find Ninja"
1160     fi
1161 fi
1162
1163 # Check that the C compiler works. Doing this here before testing
1164 # the host CPU ensures that we had a valid CC to autodetect the
1165 # $cpu var (and we should bail right here if that's not the case).
1166 # It also allows the help message to be printed without a CC.
1167 write_c_skeleton;
1168 if compile_object ; then
1169   : C compiler works ok
1170 else
1171     error_exit "\"$cc\" either does not exist or does not work"
1172 fi
1173 if ! compile_prog ; then
1174     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1175 fi
1176
1177 # Consult white-list to determine whether to enable werror
1178 # by default.  Only enable by default for git builds
1179 if test -z "$werror" ; then
1180     if test "$git_submodules_action" != "ignore" && \
1181         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1182         werror="yes"
1183     else
1184         werror="no"
1185     fi
1186 fi
1187
1188 if test "$targetos" = "bogus"; then
1189     # Now that we know that we're not printing the help and that
1190     # the compiler works (so the results of the check_defines we used
1191     # to identify the OS are reliable), if we didn't recognize the
1192     # host OS we should stop now.
1193     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1194 fi
1195
1196 # Check whether the compiler matches our minimum requirements:
1197 cat > $TMPC << EOF
1198 #if defined(__clang_major__) && defined(__clang_minor__)
1199 # ifdef __apple_build_version__
1200 #  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1201 #   error You need at least XCode Clang v12.0 to compile QEMU
1202 #  endif
1203 # else
1204 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1205 #   error You need at least Clang v10.0 to compile QEMU
1206 #  endif
1207 # endif
1208 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1209 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1210 #  error You need at least GCC v7.4.0 to compile QEMU
1211 # endif
1212 #else
1213 # error You either need GCC or Clang to compiler QEMU
1214 #endif
1215 int main (void) { return 0; }
1216 EOF
1217 if ! compile_prog "" "" ; then
1218     error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1219 fi
1220
1221 # Accumulate -Wfoo and -Wno-bar separately.
1222 # We will list all of the enable flags first, and the disable flags second.
1223 # Note that we do not add -Werror, because that would enable it for all
1224 # configure tests. If a configure test failed due to -Werror this would
1225 # just silently disable some features, so it's too error prone.
1226
1227 warn_flags=
1228 add_to warn_flags -Wundef
1229 add_to warn_flags -Wwrite-strings
1230 add_to warn_flags -Wmissing-prototypes
1231 add_to warn_flags -Wstrict-prototypes
1232 add_to warn_flags -Wredundant-decls
1233 add_to warn_flags -Wold-style-declaration
1234 add_to warn_flags -Wold-style-definition
1235 add_to warn_flags -Wtype-limits
1236 add_to warn_flags -Wformat-security
1237 add_to warn_flags -Wformat-y2k
1238 add_to warn_flags -Winit-self
1239 add_to warn_flags -Wignored-qualifiers
1240 add_to warn_flags -Wempty-body
1241 add_to warn_flags -Wnested-externs
1242 add_to warn_flags -Wendif-labels
1243 add_to warn_flags -Wexpansion-to-defined
1244 add_to warn_flags -Wimplicit-fallthrough=2
1245 add_to warn_flags -Wmissing-format-attribute
1246
1247 if test "$targetos" != "darwin"; then
1248     add_to warn_flags -Wthread-safety
1249 fi
1250
1251 nowarn_flags=
1252 add_to nowarn_flags -Wno-initializer-overrides
1253 add_to nowarn_flags -Wno-missing-include-dirs
1254 add_to nowarn_flags -Wno-shift-negative-value
1255 add_to nowarn_flags -Wno-string-plus-int
1256 add_to nowarn_flags -Wno-typedef-redefinition
1257 add_to nowarn_flags -Wno-tautological-type-limit-compare
1258 add_to nowarn_flags -Wno-psabi
1259 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1260
1261 gcc_flags="$warn_flags $nowarn_flags"
1262
1263 cc_has_warning_flag() {
1264     write_c_skeleton;
1265
1266     # Use the positive sense of the flag when testing for -Wno-wombat
1267     # support (gcc will happily accept the -Wno- form of unknown
1268     # warning options).
1269     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1270     compile_prog "-Werror $optflag" ""
1271 }
1272
1273 objcc_has_warning_flag() {
1274     cat > $TMPM <<EOF
1275 int main(void) { return 0; }
1276 EOF
1277
1278     # Use the positive sense of the flag when testing for -Wno-wombat
1279     # support (gcc will happily accept the -Wno- form of unknown
1280     # warning options).
1281     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1282     do_objc -Werror $optflag \
1283       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1284       -o $TMPE $TMPM $QEMU_LDFLAGS
1285 }
1286
1287 for flag in $gcc_flags; do
1288     if cc_has_warning_flag $flag ; then
1289         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1290     fi
1291     if objcc_has_warning_flag $flag ; then
1292         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1293     fi
1294 done
1295
1296 if test "$stack_protector" != "no"; then
1297   cat > $TMPC << EOF
1298 int main(int argc, char *argv[])
1299 {
1300     char arr[64], *p = arr, *c = argv[argc - 1];
1301     while (*c) {
1302         *p++ = *c++;
1303     }
1304     return 0;
1305 }
1306 EOF
1307   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1308   sp_on=0
1309   for flag in $gcc_flags; do
1310     # We need to check both a compile and a link, since some compiler
1311     # setups fail only on a .c->.o compile and some only at link time
1312     if compile_object "-Werror $flag" &&
1313        compile_prog "-Werror $flag" ""; then
1314       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1315       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1316       sp_on=1
1317       break
1318     fi
1319   done
1320   if test "$stack_protector" = yes; then
1321     if test $sp_on = 0; then
1322       error_exit "Stack protector not supported"
1323     fi
1324   fi
1325 fi
1326
1327 # Our module code doesn't support Windows
1328 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1329   error_exit "Modules are not available for Windows"
1330 fi
1331
1332 # Static linking is not possible with plugins, modules or PIE
1333 if test "$static" = "yes" ; then
1334   if test "$modules" = "yes" ; then
1335     error_exit "static and modules are mutually incompatible"
1336   fi
1337   if test "$plugins" = "yes"; then
1338     error_exit "static and plugins are mutually incompatible"
1339   else
1340     plugins="no"
1341   fi
1342 fi
1343 test "$plugins" = "" && plugins=yes
1344
1345 cat > $TMPC << EOF
1346
1347 #ifdef __linux__
1348 #  define THREAD __thread
1349 #else
1350 #  define THREAD
1351 #endif
1352 static THREAD int tls_var;
1353 int main(void) { return tls_var; }
1354 EOF
1355
1356 # Meson currently only handles pie as a boolean for now so if we have
1357 # explicitly disabled PIE we need to extend our cflags because it wont.
1358 if test "$static" = "yes"; then
1359   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1360     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1361     pie="yes"
1362   elif test "$pie" = "yes"; then
1363     error_exit "-static-pie not available due to missing toolchain support"
1364   else
1365     pie="no"
1366     QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
1367   fi
1368 elif test "$pie" = "no"; then
1369   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1370     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1371     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1372     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1373   fi
1374 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1375   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1376   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1377   pie="yes"
1378 elif test "$pie" = "yes"; then
1379   error_exit "PIE not available due to missing toolchain support"
1380 else
1381   echo "Disabling PIE due to missing toolchain support"
1382   pie="no"
1383 fi
1384
1385 ##########################################
1386 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1387 # use i686 as default anyway, but for those that don't, an explicit
1388 # specification is necessary
1389
1390 if test "$cpu" = "i386"; then
1391   cat > $TMPC << EOF
1392 static int sfaa(int *ptr)
1393 {
1394   return __sync_fetch_and_and(ptr, 0);
1395 }
1396
1397 int main(void)
1398 {
1399   int val = 42;
1400   val = __sync_val_compare_and_swap(&val, 0, 1);
1401   sfaa(&val);
1402   return val;
1403 }
1404 EOF
1405   if ! compile_prog "" "" ; then
1406     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1407   fi
1408 fi
1409
1410 if test -z "${target_list+xxx}" ; then
1411     default_targets=yes
1412     for target in $default_target_list; do
1413         target_list="$target_list $target"
1414     done
1415     target_list="${target_list# }"
1416 else
1417     default_targets=no
1418     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1419     for target in $target_list; do
1420         # Check that we recognised the target name; this allows a more
1421         # friendly error message than if we let it fall through.
1422         case " $default_target_list " in
1423             *" $target "*)
1424                 ;;
1425             *)
1426                 error_exit "Unknown target name '$target'"
1427                 ;;
1428         esac
1429     done
1430 fi
1431
1432 # see if system emulation was really requested
1433 case " $target_list " in
1434   *"-softmmu "*) softmmu=yes
1435   ;;
1436   *) softmmu=no
1437   ;;
1438 esac
1439
1440 if test "$tcg" = "auto"; then
1441   if test -z "$target_list"; then
1442     tcg="disabled"
1443   else
1444     tcg="enabled"
1445   fi
1446 fi
1447
1448 if test "$tcg" = "enabled"; then
1449     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1450     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1451 fi
1452
1453 ##########################################
1454 # big/little endian test
1455 cat > $TMPC << EOF
1456 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1457 # error LITTLE
1458 #endif
1459 int main(void) { return 0; }
1460 EOF
1461
1462 if ! compile_prog ; then
1463   bigendian="no"
1464 else
1465   cat > $TMPC << EOF
1466 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1467 # error BIG
1468 #endif
1469 int main(void) { return 0; }
1470 EOF
1471
1472   if ! compile_prog ; then
1473     bigendian="yes"
1474   else
1475     echo big/little test failed
1476     exit 1
1477   fi
1478 fi
1479
1480 ##########################################
1481 # pkg-config probe
1482
1483 if ! has "$pkg_config_exe"; then
1484   error_exit "pkg-config binary '$pkg_config_exe' not found"
1485 fi
1486
1487 ##########################################
1488 # glib support probe
1489
1490 # When bumping glib_req_ver, please check also whether we should increase
1491 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1492 glib_req_ver=2.56
1493 glib_modules=gthread-2.0
1494 if test "$modules" = yes; then
1495     glib_modules="$glib_modules gmodule-export-2.0"
1496 elif test "$plugins" = "yes"; then
1497     glib_modules="$glib_modules gmodule-no-export-2.0"
1498 fi
1499
1500 for i in $glib_modules; do
1501     if $pkg_config --atleast-version=$glib_req_ver $i; then
1502         glib_cflags=$($pkg_config --cflags $i)
1503         glib_libs=$($pkg_config --libs $i)
1504     else
1505         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1506     fi
1507 done
1508
1509 # Check whether glib has gslice, which we have to avoid for correctness.
1510 # TODO: remove this check and the corresponding workaround (qtree) when
1511 # the minimum supported glib is >= $glib_dropped_gslice_version.
1512 glib_dropped_gslice_version=2.75.3
1513 for i in $glib_modules; do
1514     if ! $pkg_config --atleast-version=$glib_dropped_gslice_version $i; then
1515         glib_has_gslice="yes"
1516         break
1517     fi
1518 done
1519
1520 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1521 if test -z "$glib_bindir" ; then
1522         glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1523 fi
1524
1525 # This workaround is required due to a bug in pkg-config file for glib as it
1526 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1527
1528 if test "$static" = yes && test "$mingw32" = yes; then
1529     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1530 fi
1531
1532 # Sanity check that the current size_t matches the
1533 # size that glib thinks it should be. This catches
1534 # problems on multi-arch where people try to build
1535 # 32-bit QEMU while pointing at 64-bit glib headers
1536 cat > $TMPC <<EOF
1537 #include <glib.h>
1538 #include <unistd.h>
1539
1540 #define QEMU_BUILD_BUG_ON(x) \
1541   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1542
1543 int main(void) {
1544    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1545    return 0;
1546 }
1547 EOF
1548
1549 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1550     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1551                "You probably need to set PKG_CONFIG_LIBDIR"\
1552                "to point to the right pkg-config files for your"\
1553                "build target"
1554 fi
1555
1556 # Silence clang warnings triggered by glib < 2.57.2
1557 cat > $TMPC << EOF
1558 #include <glib.h>
1559 typedef struct Foo {
1560     int i;
1561 } Foo;
1562 static void foo_free(Foo *f)
1563 {
1564     g_free(f);
1565 }
1566 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1567 int main(void) { return 0; }
1568 EOF
1569 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1570     if cc_has_warning_flag "-Wno-unused-function"; then
1571         glib_cflags="$glib_cflags -Wno-unused-function"
1572         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1573     fi
1574 fi
1575
1576 ##########################################
1577 # fdt probe
1578
1579 case "$fdt" in
1580   auto | enabled | internal)
1581     # Simpler to always update submodule, even if not needed.
1582     git_submodules="${git_submodules} dtc"
1583     ;;
1584 esac
1585
1586 ##########################################
1587 # check and set a backend for coroutine
1588
1589 # We prefer ucontext, but it's not always possible. The fallback
1590 # is sigcontext. On Windows the only valid backend is the Windows
1591 # specific one.
1592
1593 ucontext_works=no
1594 if test "$darwin" != "yes"; then
1595   cat > $TMPC << EOF
1596 #include <ucontext.h>
1597 #ifdef __stub_makecontext
1598 #error Ignoring glibc stub makecontext which will always fail
1599 #endif
1600 int main(void) { makecontext(0, 0, 0); return 0; }
1601 EOF
1602   if compile_prog "" "" ; then
1603     ucontext_works=yes
1604   fi
1605 fi
1606
1607 if test "$coroutine" = ""; then
1608   if test "$mingw32" = "yes"; then
1609     coroutine=win32
1610   elif test "$ucontext_works" = "yes"; then
1611     coroutine=ucontext
1612   else
1613     coroutine=sigaltstack
1614   fi
1615 else
1616   case $coroutine in
1617   windows)
1618     if test "$mingw32" != "yes"; then
1619       error_exit "'windows' coroutine backend only valid for Windows"
1620     fi
1621     # Unfortunately the user visible backend name doesn't match the
1622     # coroutine-*.c filename for this case, so we have to adjust it here.
1623     coroutine=win32
1624     ;;
1625   ucontext)
1626     if test "$ucontext_works" != "yes"; then
1627       error_exit "'ucontext' backend requested but makecontext not available"
1628     fi
1629     ;;
1630   sigaltstack)
1631     if test "$mingw32" = "yes"; then
1632       error_exit "only the 'windows' coroutine backend is valid for Windows"
1633     fi
1634     ;;
1635   *)
1636     error_exit "unknown coroutine backend $coroutine"
1637     ;;
1638   esac
1639 fi
1640
1641 ##################################################
1642 # SafeStack
1643
1644
1645 if test "$safe_stack" = "yes"; then
1646 cat > $TMPC << EOF
1647 int main(void)
1648 {
1649 #if ! __has_feature(safe_stack)
1650 #error SafeStack Disabled
1651 #endif
1652     return 0;
1653 }
1654 EOF
1655   flag="-fsanitize=safe-stack"
1656   # Check that safe-stack is supported and enabled.
1657   if compile_prog "-Werror $flag" "$flag"; then
1658     # Flag needed both at compilation and at linking
1659     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1660     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1661   else
1662     error_exit "SafeStack not supported by your compiler"
1663   fi
1664   if test "$coroutine" != "ucontext"; then
1665     error_exit "SafeStack is only supported by the coroutine backend ucontext"
1666   fi
1667 else
1668 cat > $TMPC << EOF
1669 int main(void)
1670 {
1671 #if defined(__has_feature)
1672 #if __has_feature(safe_stack)
1673 #error SafeStack Enabled
1674 #endif
1675 #endif
1676     return 0;
1677 }
1678 EOF
1679 if test "$safe_stack" = "no"; then
1680   # Make sure that safe-stack is disabled
1681   if ! compile_prog "-Werror" ""; then
1682     # SafeStack was already enabled, try to explicitly remove the feature
1683     flag="-fno-sanitize=safe-stack"
1684     if ! compile_prog "-Werror $flag" "$flag"; then
1685       error_exit "Configure cannot disable SafeStack"
1686     fi
1687     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1688     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1689   fi
1690 else # "$safe_stack" = ""
1691   # Set safe_stack to yes or no based on pre-existing flags
1692   if compile_prog "-Werror" ""; then
1693     safe_stack="no"
1694   else
1695     safe_stack="yes"
1696     if test "$coroutine" != "ucontext"; then
1697       error_exit "SafeStack is only supported by the coroutine backend ucontext"
1698     fi
1699   fi
1700 fi
1701 fi
1702
1703 ########################################
1704 # check if ccache is interfering with
1705 # semantic analysis of macros
1706
1707 unset CCACHE_CPP2
1708 ccache_cpp2=no
1709 cat > $TMPC << EOF
1710 static const int Z = 1;
1711 #define fn() ({ Z; })
1712 #define TAUT(X) ((X) == Z)
1713 #define PAREN(X, Y) (X == Y)
1714 #define ID(X) (X)
1715 int main(void)
1716 {
1717     int x = 0, y = 0;
1718     x = ID(x);
1719     x = fn();
1720     fn();
1721     if (PAREN(x, y)) return 0;
1722     if (TAUT(Z)) return 0;
1723     return 0;
1724 }
1725 EOF
1726
1727 if ! compile_object "-Werror"; then
1728     ccache_cpp2=yes
1729 fi
1730
1731 #################################################
1732 # clang does not support glibc + FORTIFY_SOURCE.
1733
1734 if test "$fortify_source" != "no"; then
1735   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1736     fortify_source="no";
1737   elif test -n "$cxx" && has $cxx &&
1738        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1739     fortify_source="no";
1740   else
1741     fortify_source="yes"
1742   fi
1743 fi
1744
1745 ##########################################
1746 # checks for sanitizers
1747
1748 have_asan=no
1749 have_ubsan=no
1750 have_asan_iface_h=no
1751 have_asan_iface_fiber=no
1752
1753 if test "$sanitizers" = "yes" ; then
1754   write_c_skeleton
1755   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1756       have_asan=yes
1757   fi
1758
1759   # we could use a simple skeleton for flags checks, but this also
1760   # detect the static linking issue of ubsan, see also:
1761   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1762   cat > $TMPC << EOF
1763 int main(int argc, char **argv)
1764 {
1765     return argc + 1;
1766 }
1767 EOF
1768   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1769       have_ubsan=yes
1770   fi
1771
1772   if check_include "sanitizer/asan_interface.h" ; then
1773       have_asan_iface_h=yes
1774   fi
1775
1776   cat > $TMPC << EOF
1777 #include <sanitizer/asan_interface.h>
1778 int main(void) {
1779   __sanitizer_start_switch_fiber(0, 0, 0);
1780   return 0;
1781 }
1782 EOF
1783   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1784       have_asan_iface_fiber=yes
1785   fi
1786 fi
1787
1788 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1789 # keep it separate until that is not the case.
1790 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1791   error_exit "TSAN is not supported with other sanitiziers."
1792 fi
1793 have_tsan=no
1794 have_tsan_iface_fiber=no
1795 if test "$tsan" = "yes" ; then
1796   write_c_skeleton
1797   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1798       have_tsan=yes
1799   fi
1800   cat > $TMPC << EOF
1801 #include <sanitizer/tsan_interface.h>
1802 int main(void) {
1803   __tsan_create_fiber(0);
1804   return 0;
1805 }
1806 EOF
1807   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1808       have_tsan_iface_fiber=yes
1809   fi
1810 fi
1811
1812 ##########################################
1813 # functions to probe cross compilers
1814
1815 container="no"
1816 runc=""
1817 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1818     case $($python "$source_path"/tests/docker/docker.py probe) in
1819         *docker) container=docker ;;
1820         podman) container=podman ;;
1821         no) container=no ;;
1822     esac
1823     if test "$container" != "no"; then
1824         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1825         runc=$($python "$source_path"/tests/docker/docker.py probe)
1826     fi
1827 fi
1828
1829 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1830 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1831 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1832 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1833 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1834 : ${cross_prefix_armeb="$cross_prefix_arm"}
1835 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1836 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1837 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1838 : ${cross_prefix_i386="i686-linux-gnu-"}
1839 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1840 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1841 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1842 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1843 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1844 : ${cross_prefix_mips="mips-linux-gnu-"}
1845 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1846 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1847 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1848 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1849 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1850 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1851 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1852 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1853 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1854 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1855
1856 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1857 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1858 : ${cross_cc_armeb="$cross_cc_arm"}
1859 : ${cross_cc_cflags_armeb="-mbig-endian"}
1860 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1861 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1862 : ${cross_cc_cflags_i386="-m32"}
1863 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1864 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1865 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1866 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1867 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1868 : ${cross_cc_sparc="$cross_cc_sparc64"}
1869 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1870 : ${cross_cc_cflags_x86_64="-m64"}
1871
1872 compute_target_variable() {
1873   eval "$2="
1874   if eval test -n "\"\${cross_prefix_$1}\""; then
1875     if eval has "\"\${cross_prefix_$1}\$3\""; then
1876       eval "$2=\"\${cross_prefix_$1}\$3\""
1877     fi
1878   fi
1879 }
1880
1881 have_target() {
1882   for i; do
1883     case " $target_list " in
1884       *" $i "*) return 0;;
1885       *) ;;
1886     esac
1887   done
1888   return 1
1889 }
1890
1891 # probe_target_compiler TARGET
1892 #
1893 # Look for a compiler for the given target, either native or cross.
1894 # Set variables target_* if a compiler is found, and container_cross_*
1895 # if a Docker-based cross-compiler image is known for the target.
1896 # Set got_cross_cc to yes/no depending on whether a non-container-based
1897 # compiler was found.
1898 #
1899 # If TARGET is a user-mode emulation target, also set build_static to
1900 # "y" if static linking is possible.
1901 #
1902 probe_target_compiler() {
1903   # reset all output variables
1904   got_cross_cc=no
1905   container_image=
1906   container_hosts=
1907   container_cross_cc=
1908   container_cross_ar=
1909   container_cross_as=
1910   container_cross_ld=
1911   container_cross_nm=
1912   container_cross_objcopy=
1913   container_cross_ranlib=
1914   container_cross_strip=
1915
1916   # We shall skip configuring the target compiler if the user didn't
1917   # bother enabling an appropriate guest. This avoids building
1918   # extraneous firmware images and tests.
1919   if test "${target_list#*$1}" = "$1"; then
1920       return 1
1921   fi
1922
1923   target_arch=${1%%-*}
1924   case $target_arch in
1925     aarch64) container_hosts="x86_64 aarch64" ;;
1926     alpha) container_hosts=x86_64 ;;
1927     arm) container_hosts="x86_64 aarch64" ;;
1928     cris) container_hosts=x86_64 ;;
1929     hexagon) container_hosts=x86_64 ;;
1930     hppa) container_hosts=x86_64 ;;
1931     i386) container_hosts=x86_64 ;;
1932     loongarch64) container_hosts=x86_64 ;;
1933     m68k) container_hosts=x86_64 ;;
1934     microblaze) container_hosts=x86_64 ;;
1935     mips64el) container_hosts=x86_64 ;;
1936     mips64) container_hosts=x86_64 ;;
1937     mipsel) container_hosts=x86_64 ;;
1938     mips) container_hosts=x86_64 ;;
1939     nios2) container_hosts=x86_64 ;;
1940     ppc) container_hosts=x86_64 ;;
1941     ppc64|ppc64le) container_hosts=x86_64 ;;
1942     riscv64) container_hosts=x86_64 ;;
1943     s390x) container_hosts=x86_64 ;;
1944     sh4) container_hosts=x86_64 ;;
1945     sparc64) container_hosts=x86_64 ;;
1946     tricore) container_hosts=x86_64 ;;
1947     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1948     xtensa*) container_hosts=x86_64 ;;
1949   esac
1950
1951   for host in $container_hosts; do
1952     test "$container" != no || continue
1953     test "$host" = "$cpu" || continue
1954     case $target_arch in
1955       aarch64)
1956         # We don't have any bigendian build tools so we only use this for AArch64
1957         container_image=debian-arm64-cross
1958         container_cross_prefix=aarch64-linux-gnu-
1959         container_cross_cc=${container_cross_prefix}gcc-10
1960         ;;
1961       alpha)
1962         container_image=debian-alpha-cross
1963         container_cross_prefix=alpha-linux-gnu-
1964         ;;
1965       arm)
1966         # We don't have any bigendian build tools so we only use this for ARM
1967         container_image=debian-armhf-cross
1968         container_cross_prefix=arm-linux-gnueabihf-
1969         ;;
1970       cris)
1971         container_image=fedora-cris-cross
1972         container_cross_prefix=cris-linux-gnu-
1973         ;;
1974       hexagon)
1975         container_image=debian-hexagon-cross
1976         container_cross_prefix=hexagon-unknown-linux-musl-
1977         container_cross_cc=${container_cross_prefix}clang
1978         ;;
1979       hppa)
1980         container_image=debian-hppa-cross
1981         container_cross_prefix=hppa-linux-gnu-
1982         ;;
1983       i386)
1984         container_image=fedora-i386-cross
1985         container_cross_prefix=
1986         ;;
1987       loongarch64)
1988         container_image=debian-loongarch-cross
1989         container_cross_prefix=loongarch64-unknown-linux-gnu-
1990         ;;
1991       m68k)
1992         container_image=debian-m68k-cross
1993         container_cross_prefix=m68k-linux-gnu-
1994         ;;
1995       microblaze)
1996         container_image=debian-microblaze-cross
1997         container_cross_prefix=microblaze-linux-musl-
1998         ;;
1999       mips64el)
2000         container_image=debian-mips64el-cross
2001         container_cross_prefix=mips64el-linux-gnuabi64-
2002         ;;
2003       mips64)
2004         container_image=debian-mips64-cross
2005         container_cross_prefix=mips64-linux-gnuabi64-
2006         ;;
2007       mipsel)
2008         container_image=debian-mipsel-cross
2009         container_cross_prefix=mipsel-linux-gnu-
2010         ;;
2011       mips)
2012         container_image=debian-mips-cross
2013         container_cross_prefix=mips-linux-gnu-
2014         ;;
2015       nios2)
2016         container_image=debian-nios2-cross
2017         container_cross_prefix=nios2-linux-gnu-
2018         ;;
2019       ppc)
2020         container_image=debian-powerpc-test-cross
2021         container_cross_prefix=powerpc-linux-gnu-
2022         container_cross_cc=${container_cross_prefix}gcc-10
2023         ;;
2024       ppc64|ppc64le)
2025         container_image=debian-powerpc-test-cross
2026         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
2027         container_cross_cc=${container_cross_prefix}gcc-10
2028         ;;
2029       riscv64)
2030         container_image=debian-riscv64-test-cross
2031         container_cross_prefix=riscv64-linux-gnu-
2032         ;;
2033       s390x)
2034         container_image=debian-s390x-cross
2035         container_cross_prefix=s390x-linux-gnu-
2036         ;;
2037       sh4)
2038         container_image=debian-sh4-cross
2039         container_cross_prefix=sh4-linux-gnu-
2040         ;;
2041       sparc64)
2042         container_image=debian-sparc64-cross
2043         container_cross_prefix=sparc64-linux-gnu-
2044         ;;
2045       tricore)
2046         container_image=debian-tricore-cross
2047         container_cross_prefix=tricore-
2048         container_cross_as=tricore-as
2049         container_cross_ld=tricore-ld
2050         break
2051         ;;
2052       x86_64)
2053         container_image=debian-amd64-cross
2054         container_cross_prefix=x86_64-linux-gnu-
2055         ;;
2056       xtensa*)
2057         container_hosts=x86_64
2058         container_image=debian-xtensa-cross
2059
2060         # default to the dc232b cpu
2061         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2062         ;;
2063     esac
2064     : ${container_cross_cc:=${container_cross_prefix}gcc}
2065     : ${container_cross_ar:=${container_cross_prefix}ar}
2066     : ${container_cross_as:=${container_cross_prefix}as}
2067     : ${container_cross_ld:=${container_cross_prefix}ld}
2068     : ${container_cross_nm:=${container_cross_prefix}nm}
2069     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2070     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2071     : ${container_cross_strip:=${container_cross_prefix}strip}
2072   done
2073
2074   try=cross
2075   case "$target_arch:$cpu" in
2076     aarch64_be:aarch64 | \
2077     armeb:arm | \
2078     i386:x86_64 | \
2079     mips*:mips64 | \
2080     ppc*:ppc64 | \
2081     sparc:sparc64 | \
2082     "$cpu:$cpu")
2083       try='native cross' ;;
2084   esac
2085   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2086   for thistry in $try; do
2087     case $thistry in
2088     native)
2089       target_cc=$cc
2090       target_ccas=$ccas
2091       target_ar=$ar
2092       target_as=$as
2093       target_ld=$ld
2094       target_nm=$nm
2095       target_objcopy=$objcopy
2096       target_ranlib=$ranlib
2097       target_strip=$strip
2098       ;;
2099     cross)
2100       target_cc=
2101       if eval test -n "\"\${cross_cc_$target_arch}\""; then
2102         if eval has "\"\${cross_cc_$target_arch}\""; then
2103           eval "target_cc=\"\${cross_cc_$target_arch}\""
2104         fi
2105       else
2106         compute_target_variable $target_arch target_cc gcc
2107       fi
2108       target_ccas=$target_cc
2109       compute_target_variable $target_arch target_ar ar
2110       compute_target_variable $target_arch target_as as
2111       compute_target_variable $target_arch target_ld ld
2112       compute_target_variable $target_arch target_nm nm
2113       compute_target_variable $target_arch target_objcopy objcopy
2114       compute_target_variable $target_arch target_ranlib ranlib
2115       compute_target_variable $target_arch target_strip strip
2116       ;;
2117     esac
2118
2119     if test -n "$target_cc"; then
2120       case $target_arch in
2121         i386|x86_64)
2122           if $target_cc --version | grep -qi "clang"; then
2123             continue
2124           fi
2125           ;;
2126       esac
2127     elif test -n "$target_as" && test -n "$target_ld"; then
2128       # Special handling for assembler only targets
2129       case $target in
2130         tricore-softmmu)
2131           build_static=
2132           got_cross_cc=yes
2133           break
2134           ;;
2135         *)
2136           continue
2137           ;;
2138       esac
2139     else
2140       continue
2141     fi
2142
2143     write_c_skeleton
2144     case $1 in
2145       *-softmmu)
2146         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2147           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2148           got_cross_cc=yes
2149           break
2150         fi
2151         ;;
2152       *)
2153         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2154           build_static=y
2155           got_cross_cc=yes
2156           break
2157         fi
2158         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2159           build_static=
2160           got_cross_cc=yes
2161           break
2162         fi
2163         ;;
2164     esac
2165   done
2166   if test $got_cross_cc != yes; then
2167     build_static=
2168     target_cc=
2169     target_ccas=
2170     target_ar=
2171     target_as=
2172     target_ld=
2173     target_nm=
2174     target_objcopy=
2175     target_ranlib=
2176     target_strip=
2177   fi
2178   test -n "$target_cc"
2179 }
2180
2181 write_target_makefile() {
2182   echo "EXTRA_CFLAGS=$target_cflags"
2183   if test -z "$target_cc" && test -z "$target_as"; then
2184     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2185     echo "$1: docker-image-$container_image" >> Makefile.prereqs
2186     if test -n "$container_cross_cc"; then
2187       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2188       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2189     fi
2190     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2191     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2192     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2193     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2194     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2195     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2196     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2197   else
2198     if test -n "$target_cc"; then
2199       echo "CC=$target_cc"
2200       echo "CCAS=$target_ccas"
2201     fi
2202     if test -n "$target_ar"; then
2203       echo "AR=$target_ar"
2204     fi
2205     if test -n "$target_as"; then
2206       echo "AS=$target_as"
2207     fi
2208     if test -n "$target_ld"; then
2209       echo "LD=$target_ld"
2210     fi
2211     if test -n "$target_nm"; then
2212       echo "NM=$target_nm"
2213     fi
2214     if test -n "$target_objcopy"; then
2215       echo "OBJCOPY=$target_objcopy"
2216     fi
2217     if test -n "$target_ranlib"; then
2218       echo "RANLIB=$target_ranlib"
2219     fi
2220     if test -n "$target_strip"; then
2221       echo "STRIP=$target_strip"
2222     fi
2223   fi
2224 }
2225
2226 ##########################################
2227 # check for vfio_user_server
2228
2229 case "$vfio_user_server" in
2230   enabled )
2231     if test "$git_submodules_action" != "ignore"; then
2232       git_submodules="${git_submodules} subprojects/libvfio-user"
2233     fi
2234     ;;
2235 esac
2236
2237 ##########################################
2238 # End of CC checks
2239 # After here, no more $cc or $ld runs
2240
2241 write_c_skeleton
2242
2243 if test "$fortify_source" = "yes" ; then
2244   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2245 fi
2246
2247 if test "$have_asan" = "yes"; then
2248   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2249   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2250   if test "$have_asan_iface_h" = "no" ; then
2251       echo "ASAN build enabled, but ASAN header missing." \
2252            "Without code annotation, the report may be inferior."
2253   elif test "$have_asan_iface_fiber" = "no" ; then
2254       echo "ASAN build enabled, but ASAN header is too old." \
2255            "Without code annotation, the report may be inferior."
2256   fi
2257 fi
2258 if test "$have_tsan" = "yes" ; then
2259   if test "$have_tsan_iface_fiber" = "yes" ; then
2260     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2261     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2262   else
2263     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2264   fi
2265 elif test "$tsan" = "yes" ; then
2266   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2267 fi
2268 if test "$have_ubsan" = "yes"; then
2269   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2270   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2271 fi
2272
2273 #######################################
2274 # cross-compiled firmware targets
2275
2276 # Set up build tree symlinks that point back into the source tree
2277 # (these can be both files and directories).
2278 # Caution: avoid adding files or directories here using wildcards. This
2279 # will result in problems later if a new file matching the wildcard is
2280 # added to the source tree -- nothing will cause configure to be rerun
2281 # so the build tree will be missing the link back to the new file, and
2282 # tests might fail. Prefer to keep the relevant files in their own
2283 # directory and symlink the directory instead.
2284 LINKS="Makefile"
2285 LINKS="$LINKS docs/config"
2286 LINKS="$LINKS pc-bios/optionrom/Makefile"
2287 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2288 LINKS="$LINKS pc-bios/vof/Makefile"
2289 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2290 LINKS="$LINKS tests/avocado tests/data"
2291 LINKS="$LINKS tests/qemu-iotests/check"
2292 LINKS="$LINKS python"
2293 LINKS="$LINKS contrib/plugins/Makefile "
2294 for f in $LINKS ; do
2295     if [ -e "$source_path/$f" ]; then
2296         mkdir -p "$(dirname ./"$f")"
2297         symlink "$source_path/$f" "$f"
2298     fi
2299 done
2300
2301 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2302
2303 # Mac OS X ships with a broken assembler
2304 roms=
2305 if have_target i386-softmmu x86_64-softmmu && \
2306         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2307         test "$targetos" != "haiku" && \
2308         probe_target_compiler i386-softmmu; then
2309     roms="pc-bios/optionrom"
2310     config_mak=pc-bios/optionrom/config.mak
2311     echo "# Automatically generated by configure - do not modify" > $config_mak
2312     echo "TOPSRC_DIR=$source_path" >> $config_mak
2313     write_target_makefile >> $config_mak
2314 fi
2315
2316 if have_target ppc-softmmu ppc64-softmmu && \
2317         probe_target_compiler ppc-softmmu; then
2318     roms="$roms pc-bios/vof"
2319     config_mak=pc-bios/vof/config.mak
2320     echo "# Automatically generated by configure - do not modify" > $config_mak
2321     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2322     write_target_makefile >> $config_mak
2323 fi
2324
2325 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2326 # (which is the lowest architecture level that Clang supports)
2327 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2328   write_c_skeleton
2329   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2330   has_z900=$?
2331   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2332     if [ $has_z900 != 0 ]; then
2333       echo "WARNING: Your compiler does not support the z900!"
2334       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2335     fi
2336     roms="$roms pc-bios/s390-ccw"
2337     config_mak=pc-bios/s390-ccw/config-host.mak
2338     echo "# Automatically generated by configure - do not modify" > $config_mak
2339     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2340     write_target_makefile >> $config_mak
2341     # SLOF is required for building the s390-ccw firmware on s390x,
2342     # since it is using the libnet code from SLOF for network booting.
2343     git_submodules="${git_submodules} roms/SLOF"
2344   fi
2345 fi
2346
2347 #######################################
2348 # generate config-host.mak
2349
2350 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2351     exit 1
2352 fi
2353
2354 config_host_mak="config-host.mak"
2355
2356 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2357 echo >> $config_host_mak
2358
2359 echo all: >> $config_host_mak
2360 echo "GIT=$git" >> $config_host_mak
2361 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2362 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2363
2364 if test "$debug_tcg" = "yes" ; then
2365   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2366 fi
2367 if test "$mingw32" = "yes" ; then
2368   echo "CONFIG_WIN32=y" >> $config_host_mak
2369   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2370   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2371   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2372 else
2373   echo "CONFIG_POSIX=y" >> $config_host_mak
2374 fi
2375
2376 if test "$linux" = "yes" ; then
2377   echo "CONFIG_LINUX=y" >> $config_host_mak
2378 fi
2379
2380 if test "$darwin" = "yes" ; then
2381   echo "CONFIG_DARWIN=y" >> $config_host_mak
2382 fi
2383
2384 if test "$solaris" = "yes" ; then
2385   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2386 fi
2387 if test "$static" = "yes" ; then
2388   echo "CONFIG_STATIC=y" >> $config_host_mak
2389 fi
2390 echo "SRC_PATH=$source_path" >> $config_host_mak
2391 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2392 if test "$modules" = "yes"; then
2393   echo "CONFIG_MODULES=y" >> $config_host_mak
2394 fi
2395
2396 # XXX: suppress that
2397 if [ "$bsd" = "yes" ] ; then
2398   echo "CONFIG_BSD=y" >> $config_host_mak
2399 fi
2400
2401 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2402
2403 if test "$have_asan_iface_fiber" = "yes" ; then
2404     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2405 fi
2406
2407 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2408     echo "CONFIG_TSAN=y" >> $config_host_mak
2409 fi
2410
2411 if test "$plugins" = "yes" ; then
2412     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2413 fi
2414
2415 if test -n "$gdb_bin"; then
2416     gdb_version=$($gdb_bin --version | head -n 1)
2417     if version_ge ${gdb_version##* } 9.1; then
2418         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2419         gdb_arches=$("$source_path/scripts/probe-gdb-support.py" $gdb_bin)
2420     else
2421         gdb_bin=""
2422     fi
2423 fi
2424
2425 if test "$container" != no; then
2426     echo "ENGINE=$container" >> $config_host_mak
2427     echo "RUNC=$runc" >> $config_host_mak
2428 fi
2429 echo "ROMS=$roms" >> $config_host_mak
2430 echo "MAKE=$make" >> $config_host_mak
2431 echo "PYTHON=$python" >> $config_host_mak
2432 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2433 echo "MESON=$meson" >> $config_host_mak
2434 echo "NINJA=$ninja" >> $config_host_mak
2435 echo "CC=$cc" >> $config_host_mak
2436 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2437 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2438 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2439 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2440 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2441 echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak
2442 if test "$glib_has_gslice" = "yes" ; then
2443     echo "HAVE_GLIB_WITH_SLICE_ALLOCATOR=y" >> $config_host_mak
2444 fi
2445 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2446 echo "EXESUF=$EXESUF" >> $config_host_mak
2447
2448 # use included Linux headers
2449 if test "$linux" = "yes" ; then
2450   mkdir -p linux-headers
2451   case "$cpu" in
2452   i386|x86_64)
2453     linux_arch=x86
2454     ;;
2455   ppc|ppc64)
2456     linux_arch=powerpc
2457     ;;
2458   s390x)
2459     linux_arch=s390
2460     ;;
2461   aarch64)
2462     linux_arch=arm64
2463     ;;
2464   loongarch*)
2465     linux_arch=loongarch
2466     ;;
2467   mips64)
2468     linux_arch=mips
2469     ;;
2470   *)
2471     # For most CPUs the kernel architecture name and QEMU CPU name match.
2472     linux_arch="$cpu"
2473     ;;
2474   esac
2475     # For non-KVM architectures we will not have asm headers
2476     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2477       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2478     fi
2479 fi
2480
2481 for target in $target_list; do
2482     target_dir="$target"
2483     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2484     mkdir -p "$target_dir"
2485     case $target in
2486         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2487         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2488     esac
2489 done
2490
2491 if test "$default_targets" = "yes"; then
2492   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2493 fi
2494
2495 if test "$ccache_cpp2" = "yes"; then
2496   echo "export CCACHE_CPP2=y" >> $config_host_mak
2497 fi
2498
2499 if test "$safe_stack" = "yes"; then
2500   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2501 fi
2502
2503 # tests/tcg configuration
2504 (config_host_mak=tests/tcg/config-host.mak
2505 mkdir -p tests/tcg
2506 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2507 echo "SRC_PATH=$source_path" >> $config_host_mak
2508 echo "HOST_CC=$host_cc" >> $config_host_mak
2509
2510 # versioned checked in the main config_host.mak above
2511 if test -n "$gdb_bin"; then
2512     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2513 fi
2514 if test "$plugins" = "yes" ; then
2515     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2516 fi
2517
2518 tcg_tests_targets=
2519 for target in $target_list; do
2520   arch=${target%%-*}
2521
2522   case $target in
2523     xtensa*-linux-user)
2524       # the toolchain is not complete with headers, only build softmmu tests
2525       continue
2526       ;;
2527     *-softmmu)
2528       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2529       qemu="qemu-system-$arch"
2530       ;;
2531     *-linux-user|*-bsd-user)
2532       qemu="qemu-$arch"
2533       ;;
2534   esac
2535
2536   if probe_target_compiler $target || test -n "$container_image"; then
2537       test -n "$container_image" && build_static=y
2538       mkdir -p "tests/tcg/$target"
2539       config_target_mak=tests/tcg/$target/config-target.mak
2540       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2541       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2542       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2543       echo "TARGET=$target" >> "$config_target_mak"
2544       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2545       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2546       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2547
2548       # will GDB work with these binaries?
2549       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
2550           echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
2551       fi
2552
2553       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2554       tcg_tests_targets="$tcg_tests_targets $target"
2555   fi
2556 done
2557
2558 if test "$tcg" = "enabled"; then
2559     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2560 fi
2561 )
2562
2563 if test "$skip_meson" = no; then
2564   cross="config-meson.cross.new"
2565   meson_quote() {
2566     test $# = 0 && return
2567     echo "'$(echo $* | sed "s/ /','/g")'"
2568   }
2569
2570   echo "# Automatically generated by configure - do not modify" > $cross
2571   echo "[properties]" >> $cross
2572
2573   # unroll any custom device configs
2574   for a in $device_archs; do
2575       eval "c=\$devices_${a}"
2576       echo "${a}-softmmu = '$c'" >> $cross
2577   done
2578
2579   echo "[built-in options]" >> $cross
2580   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2581   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2582   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2583   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2584   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2585   echo "[binaries]" >> $cross
2586   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2587   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2588   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2589   echo "ar = [$(meson_quote $ar)]" >> $cross
2590   echo "nm = [$(meson_quote $nm)]" >> $cross
2591   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2592   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2593   if has $sdl2_config; then
2594     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2595   fi
2596   echo "strip = [$(meson_quote $strip)]" >> $cross
2597   echo "widl = [$(meson_quote $widl)]" >> $cross
2598   echo "windres = [$(meson_quote $windres)]" >> $cross
2599   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2600   if test "$cross_compile" = "yes"; then
2601     cross_arg="--cross-file config-meson.cross"
2602     echo "[host_machine]" >> $cross
2603     echo "system = '$targetos'" >> $cross
2604     case "$cpu" in
2605         i386)
2606             echo "cpu_family = 'x86'" >> $cross
2607             ;;
2608         *)
2609             echo "cpu_family = '$cpu'" >> $cross
2610             ;;
2611     esac
2612     echo "cpu = '$cpu'" >> $cross
2613     if test "$bigendian" = "yes" ; then
2614         echo "endian = 'big'" >> $cross
2615     else
2616         echo "endian = 'little'" >> $cross
2617     fi
2618   else
2619     cross_arg="--native-file config-meson.cross"
2620   fi
2621   mv $cross config-meson.cross
2622
2623   rm -rf meson-private meson-info meson-logs
2624
2625   # Prevent meson from automatically downloading wrapped subprojects when missing.
2626   # You can use 'meson subprojects download' before running configure.
2627   meson_option_add "--wrap-mode=nodownload"
2628
2629   # Built-in options
2630   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2631   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2632   test "$pie" = no && meson_option_add -Db_pie=false
2633   test "$werror" = yes && meson_option_add -Dwerror=true
2634
2635   # QEMU options
2636   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2637   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2638   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2639   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2640   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2641   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2642   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2643   run_meson() {
2644     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2645   }
2646   eval run_meson $meson_options
2647   if test "$?" -ne 0 ; then
2648       error_exit "meson setup failed"
2649   fi
2650 fi
2651
2652 # Save the configure command line for later reuse.
2653 cat <<EOD >config.status
2654 #!/bin/sh
2655 # Generated by configure.
2656 # Run this file to recreate the current configuration.
2657 # Compiler output produced by configure, useful for debugging
2658 # configure, is in config.log if it exists.
2659 EOD
2660
2661 preserve_env() {
2662     envname=$1
2663
2664     eval envval=\$$envname
2665
2666     if test -n "$envval"
2667     then
2668         echo "$envname='$envval'" >> config.status
2669         echo "export $envname" >> config.status
2670     else
2671         echo "unset $envname" >> config.status
2672     fi
2673 }
2674
2675 # Preserve various env variables that influence what
2676 # features/build target configure will detect
2677 preserve_env AR
2678 preserve_env AS
2679 preserve_env CC
2680 preserve_env CFLAGS
2681 preserve_env CXX
2682 preserve_env CXXFLAGS
2683 preserve_env LD
2684 preserve_env LDFLAGS
2685 preserve_env LD_LIBRARY_PATH
2686 preserve_env MAKE
2687 preserve_env NM
2688 preserve_env OBJCFLAGS
2689 preserve_env OBJCOPY
2690 preserve_env PATH
2691 preserve_env PKG_CONFIG
2692 preserve_env PKG_CONFIG_LIBDIR
2693 preserve_env PKG_CONFIG_PATH
2694 preserve_env PYTHON
2695 preserve_env QEMU_GA_MANUFACTURER
2696 preserve_env QEMU_GA_DISTRO
2697 preserve_env QEMU_GA_VERSION
2698 preserve_env SDL2_CONFIG
2699 preserve_env SMBD
2700 preserve_env STRIP
2701 preserve_env WIDL
2702 preserve_env WINDRES
2703 preserve_env WINDMC
2704
2705 printf "exec" >>config.status
2706 for i in "$0" "$@"; do
2707   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2708 done
2709 echo ' "$@"' >>config.status
2710 chmod +x config.status
2711
2712 rm -r "$TMPDIR1"