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 use_containers="yes"
 231 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 232 gdb_arches=""
 233
 234 if test -e "$source_path/.git"
 235 then
 236     git_submodules_action="update"
 237 else
 238     git_submodules_action="ignore"
 239 fi
 240
 241 git_submodules="ui/keycodemapdb"
 242 git="git"
 243
 244 # Don't accept a target_list environment variable.
 245 unset target_list
 246 unset target_list_exclude
 247
 248 # Default value for a variable defining feature "foo".
 249 #  * foo="no"  feature will only be used if --enable-foo arg is given
 250 #  * foo=""    feature will be searched for, and if found, will be used
 251 #              unless --disable-foo is given
 252 #  * foo="yes" this value will only be set by --enable-foo flag.
 253 #              feature will searched for,
 254 #              if not found, configure exits with error
 255 #
 256 # Always add --enable-foo and --disable-foo command line args.
 257 # Distributions want to ensure that several features are compiled in, and it
 258 # is impossible without a --enable-foo that exits if a feature is not found.
 259
 260 default_feature=""
 261 # parse CC options second
 262 for opt do
 263   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 264   case "$opt" in
 265       --without-default-features)
 266           default_feature="no"
 267   ;;
 268   esac
 269 done
 270
 271 EXTRA_CFLAGS=""
 272 EXTRA_CXXFLAGS=""
 273 EXTRA_OBJCFLAGS=""
 274 EXTRA_LDFLAGS=""
 275
 276 debug_tcg="no"
 277 docs="auto"
 278 EXESUF=""
 279 prefix="/usr/local"
 280 qemu_suffix="qemu"
 281 softmmu="yes"
 282 linux_user=""
 283 bsd_user=""
 284 pie=""
 285 coroutine=""
 286 plugins="$default_feature"
 287 ninja=""
 288 bindir="bin"
 289 skip_meson=no
 290 vfio_user_server="disabled"
 291
 292 # The following Meson options are handled manually (still they
 293 # are included in the automatically generated help message)
 294
 295 # 1. Track which submodules are needed
 296 fdt="auto"
 297
 298 # 2. Automatically enable/disable other options
 299 tcg="auto"
 300 cfi="false"
 301
 302 # parse CC options second
 303 for opt do
 304   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 305   case "$opt" in
 306   --cross-prefix=*) cross_prefix="$optarg"
 307                     cross_compile="yes"
 308   ;;
 309   --cc=*) CC="$optarg"
 310   ;;
 311   --cxx=*) CXX="$optarg"
 312   ;;
 313   --objcc=*) objcc="$optarg"
 314   ;;
 315   --cpu=*) cpu="$optarg"
 316   ;;
 317   --extra-cflags=*)
 318     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 319     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 320     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 321     ;;
 322   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 323   ;;
 324   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 325   ;;
 326   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 327   ;;
 328   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 329   ;;
 330   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 331                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 332   ;;
 333   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 334                 eval "cross_cc_${cc_arch}=\$optarg"
 335   ;;
 336   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 337   ;;
 338   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 339                     eval "cross_prefix_${cc_arch}=\$optarg"
 340   ;;
 341   esac
 342 done
 343
 344 # Preferred compiler:
 345 #  ${CC} (if set)
 346 #  ${cross_prefix}gcc (if cross-prefix specified)
 347 #  system compiler
 348 if test -z "${CC}${cross_prefix}"; then
 349   cc="$host_cc"
 350 else
 351   cc="${CC-${cross_prefix}gcc}"
 352 fi
 353
 354 if test -z "${CXX}${cross_prefix}"; then
 355   cxx="c++"
 356 else
 357   cxx="${CXX-${cross_prefix}g++}"
 358 fi
 359
 360 # Preferred ObjC compiler:
 361 # $objcc (if set, i.e. via --objcc option)
 362 # ${cross_prefix}clang (if cross-prefix specified)
 363 # clang (if available)
 364 # $cc
 365 if test -z "${objcc}${cross_prefix}"; then
 366   if has clang; then
 367     objcc=clang
 368   else
 369     objcc="$cc"
 370   fi
 371 else
 372   objcc="${objcc-${cross_prefix}clang}"
 373 fi
 374
 375 ar="${AR-${cross_prefix}ar}"
 376 as="${AS-${cross_prefix}as}"
 377 ccas="${CCAS-$cc}"
 378 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 379 ld="${LD-${cross_prefix}ld}"
 380 ranlib="${RANLIB-${cross_prefix}ranlib}"
 381 nm="${NM-${cross_prefix}nm}"
 382 smbd="$SMBD"
 383 strip="${STRIP-${cross_prefix}strip}"
 384 widl="${WIDL-${cross_prefix}widl}"
 385 windres="${WINDRES-${cross_prefix}windres}"
 386 windmc="${WINDMC-${cross_prefix}windmc}"
 387 pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
 388 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 389
 390 # default flags for all hosts
 391 # We use -fwrapv to tell the compiler that we require a C dialect where
 392 # left shift of signed integers is well defined and has the expected
 393 # 2s-complement style results. (Both clang and gcc agree that it
 394 # provides these semantics.)
 395 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 396 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 397
 398 QEMU_LDFLAGS=
 399
 400 # Flags that are needed during configure but later taken care of by Meson
 401 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 402 CONFIGURE_LDFLAGS=
 403
 404
 405 check_define() {
 406 cat > $TMPC <<EOF
 407 #if !defined($1)
 408 #error $1 not defined
 409 #endif
 410 int main(void) { return 0; }
 411 EOF
 412   compile_object
 413 }
 414
 415 write_c_skeleton() {
 416     cat > $TMPC <<EOF
 417 int main(void) { return 0; }
 418 EOF
 419 }
 420
 421 if check_define __linux__ ; then
 422   targetos=linux
 423 elif check_define _WIN32 ; then
 424   targetos=windows
 425 elif check_define __OpenBSD__ ; then
 426   targetos=openbsd
 427 elif check_define __sun__ ; then
 428   targetos=sunos
 429 elif check_define __HAIKU__ ; then
 430   targetos=haiku
 431 elif check_define __FreeBSD__ ; then
 432   targetos=freebsd
 433 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 434   targetos=gnu/kfreebsd
 435 elif check_define __DragonFly__ ; then
 436   targetos=dragonfly
 437 elif check_define __NetBSD__; then
 438   targetos=netbsd
 439 elif check_define __APPLE__; then
 440   targetos=darwin
 441 else
 442   # This is a fatal error, but don't report it yet, because we
 443   # might be going to just print the --help text, or it might
 444   # be the result of a missing compiler.
 445   targetos=bogus
 446 fi
 447
 448 # OS specific
 449
 450 mingw32="no"
 451 bsd="no"
 452 linux="no"
 453 solaris="no"
 454 case $targetos in
 455 windows)
 456   mingw32="yes"
 457   plugins="no"
 458   pie="no"
 459 ;;
 460 gnu/kfreebsd)
 461   bsd="yes"
 462 ;;
 463 freebsd)
 464   bsd="yes"
 465   make="${MAKE-gmake}"
 466   # needed for kinfo_getvmmap(3) in libutil.h
 467 ;;
 468 dragonfly)
 469   bsd="yes"
 470   make="${MAKE-gmake}"
 471 ;;
 472 netbsd)
 473   bsd="yes"
 474   make="${MAKE-gmake}"
 475 ;;
 476 openbsd)
 477   bsd="yes"
 478   make="${MAKE-gmake}"
 479 ;;
 480 darwin)
 481   bsd="yes"
 482   darwin="yes"
 483   # Disable attempts to use ObjectiveC features in os/object.h since they
 484   # won't work when we're compiling with gcc as a C compiler.
 485   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 486 ;;
 487 sunos)
 488   solaris="yes"
 489   make="${MAKE-gmake}"
 490 # needed for CMSG_ macros in sys/socket.h
 491   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 492 # needed for TIOCWIN* defines in termios.h
 493   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 494 ;;
 495 haiku)
 496   pie="no"
 497   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 498 ;;
 499 linux)
 500   linux="yes"
 501 ;;
 502 esac
 503
 504 if test ! -z "$cpu" ; then
 505   # command line argument
 506   :
 507 elif check_define __i386__ ; then
 508   cpu="i386"
 509 elif check_define __x86_64__ ; then
 510   if check_define __ILP32__ ; then
 511     cpu="x32"
 512   else
 513     cpu="x86_64"
 514   fi
 515 elif check_define __sparc__ ; then
 516   if check_define __arch64__ ; then
 517     cpu="sparc64"
 518   else
 519     cpu="sparc"
 520   fi
 521 elif check_define _ARCH_PPC ; then
 522   if check_define _ARCH_PPC64 ; then
 523     if check_define _LITTLE_ENDIAN ; then
 524       cpu="ppc64le"
 525     else
 526       cpu="ppc64"
 527     fi
 528   else
 529     cpu="ppc"
 530   fi
 531 elif check_define __mips__ ; then
 532   cpu="mips"
 533 elif check_define __s390__ ; then
 534   if check_define __s390x__ ; then
 535     cpu="s390x"
 536   else
 537     cpu="s390"
 538   fi
 539 elif check_define __riscv ; then
 540   cpu="riscv"
 541 elif check_define __arm__ ; then
 542   cpu="arm"
 543 elif check_define __aarch64__ ; then
 544   cpu="aarch64"
 545 elif check_define __loongarch64 ; then
 546   cpu="loongarch64"
 547 else
 548   # Using uname is really broken, but it is just a fallback for architectures
 549   # that are going to use TCI anyway
 550   cpu=$(uname -m)
 551   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 552 fi
 553
 554 # Normalise host CPU name and set multilib cflags.  The canonicalization
 555 # isn't really necessary, because the architectures that we check for
 556 # should not hit the 'uname -m' case, but better safe than sorry.
 557 # Note that this case should only have supported host CPUs, not guests.
 558 case "$cpu" in
 559   armv*b|armv*l|arm)
 560     cpu="arm" ;;
 561
 562   i386|i486|i586|i686)
 563     cpu="i386"
 564     CPU_CFLAGS="-m32" ;;
 565   x32)
 566     cpu="x86_64"
 567     CPU_CFLAGS="-mx32" ;;
 568   x86_64|amd64)
 569     cpu="x86_64"
 570     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 571     # If we truly care, we should simply detect this case at
 572     # runtime and generate the fallback to serial emulation.
 573     CPU_CFLAGS="-m64 -mcx16" ;;
 574
 575   mips*)
 576     cpu="mips" ;;
 577
 578   ppc)
 579     CPU_CFLAGS="-m32" ;;
 580   ppc64)
 581     CPU_CFLAGS="-m64 -mbig-endian" ;;
 582   ppc64le)
 583     cpu="ppc64"
 584     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 585
 586   s390)
 587     CPU_CFLAGS="-m31" ;;
 588   s390x)
 589     CPU_CFLAGS="-m64" ;;
 590
 591   sparc|sun4[cdmuv])
 592     cpu="sparc"
 593     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 594   sparc64)
 595     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 596 esac
 597
 598 : ${make=${MAKE-make}}
 599
 600
 601 check_py_version() {
 602     # We require python >= 3.7.
 603     # NB: a True python conditional creates a non-zero return code (Failure)
 604     "$1" -c 'import sys; sys.exit(sys.version_info < (3,7))'
 605 }
 606
 607 python=
 608 pypi="enabled"
 609 first_python=
 610 if test -z "${PYTHON}"; then
 611     # A bare 'python' is traditionally python 2.x, but some distros
 612     # have it as python 3.x, so check in both places.
 613     for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7; do
 614         if has "$binary"; then
 615             python=$(command -v "$binary")
 616             if check_py_version "$python"; then
 617                 # This one is good.
 618                 first_python=
 619                 break
 620             else
 621                 first_python=$python
 622             fi
 623         fi
 624     done
 625 else
 626     # Same as above, but only check the environment variable.
 627     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 628     python=$(command -v "$PYTHON")
 629     if check_py_version "$python"; then
 630         # This one is good.
 631         first_python=
 632     else
 633         first_python=$first_python
 634     fi
 635 fi
 636
 637 # Check for ancillary tools used in testing
 638 genisoimage=
 639 for binary in genisoimage mkisofs
 640 do
 641     if has $binary
 642     then
 643         genisoimage=$(command -v "$binary")
 644         break
 645     fi
 646 done
 647
 648 if test "$mingw32" = "yes" ; then
 649   EXESUF=".exe"
 650   # MinGW needs -mthreads for TLS and macro _MT.
 651   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 652   prefix="/qemu"
 653   bindir=""
 654   qemu_suffix=""
 655 fi
 656
 657 werror=""
 658
 659 meson_option_build_array() {
 660   printf '['
 661   (if test "$targetos" = windows; then
 662     IFS=\;
 663   else
 664     IFS=:
 665   fi
 666   for e in $1; do
 667     printf '"""'
 668     # backslash escape any '\' and '"' characters
 669     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 670     printf '""",'
 671   done)
 672   printf ']\n'
 673 }
 674
 675 . "$source_path/scripts/meson-buildoptions.sh"
 676
 677 meson_options=
 678 meson_option_add() {
 679   meson_options="$meson_options $(quote_sh "$1")"
 680 }
 681 meson_option_parse() {
 682   meson_options="$meson_options $(_meson_option_parse "$@")"
 683   if test $? -eq 1; then
 684     echo "ERROR: unknown option $1"
 685     echo "Try '$0 --help' for more information"
 686     exit 1
 687   fi
 688 }
 689
 690 for opt do
 691   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 692   case "$opt" in
 693   --help|-h) show_help=yes
 694   ;;
 695   --version|-V) exec cat "$source_path/VERSION"
 696   ;;
 697   --prefix=*) prefix="$optarg"
 698   ;;
 699   --cross-prefix=*)
 700   ;;
 701   --cc=*)
 702   ;;
 703   --host-cc=*) host_cc="$optarg"
 704   ;;
 705   --cxx=*)
 706   ;;
 707   --objcc=*)
 708   ;;
 709   --make=*) make="$optarg"
 710   ;;
 711   --install=*)
 712   ;;
 713   --python=*) python="$optarg"
 714   ;;
 715   --skip-meson) skip_meson=yes
 716   ;;
 717   --ninja=*) ninja="$optarg"
 718   ;;
 719   --smbd=*) smbd="$optarg"
 720   ;;
 721   --extra-cflags=*)
 722   ;;
 723   --extra-cxxflags=*)
 724   ;;
 725   --extra-objcflags=*)
 726   ;;
 727   --extra-ldflags=*)
 728   ;;
 729   --cross-cc-*)
 730   ;;
 731   --cross-prefix-*)
 732   ;;
 733   --enable-debug-info) meson_option_add -Ddebug=true
 734   ;;
 735   --disable-debug-info) meson_option_add -Ddebug=false
 736   ;;
 737   --enable-docs) docs=enabled
 738   ;;
 739   --disable-docs) docs=disabled
 740   ;;
 741   --cpu=*)
 742   ;;
 743   --target-list=*) target_list="$optarg"
 744                    if test "$target_list_exclude"; then
 745                        error_exit "Can't mix --target-list with --target-list-exclude"
 746                    fi
 747   ;;
 748   --target-list-exclude=*) target_list_exclude="$optarg"
 749                    if test "$target_list"; then
 750                        error_exit "Can't mix --target-list-exclude with --target-list"
 751                    fi
 752   ;;
 753   --with-default-devices) meson_option_add -Ddefault_devices=true
 754   ;;
 755   --without-default-devices) meson_option_add -Ddefault_devices=false
 756   ;;
 757   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 758   ;;
 759   --with-devices-*) device_arch=${opt#--with-devices-};
 760                     device_arch=${device_arch%%=*}
 761                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 762                     if test -f "$cf"; then
 763                         device_archs="$device_archs $device_arch"
 764                         eval "devices_${device_arch}=\$optarg"
 765                     else
 766                         error_exit "File $cf does not exist"
 767                     fi
 768   ;;
 769   --without-default-features) # processed above
 770   ;;
 771   --static) static="yes"
 772   ;;
 773   --bindir=*) bindir="$optarg"
 774   ;;
 775   --with-suffix=*) qemu_suffix="$optarg"
 776   ;;
 777   --host=*|--build=*|\
 778   --disable-dependency-tracking|\
 779   --sbindir=*|--sharedstatedir=*|\
 780   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 781   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 782     # These switches are silently ignored, for compatibility with
 783     # autoconf-generated configure scripts. This allows QEMU's
 784     # configure to be used by RPM and similar macros that set
 785     # lots of directory switches by default.
 786   ;;
 787   --enable-debug-tcg) debug_tcg="yes"
 788   ;;
 789   --disable-debug-tcg) debug_tcg="no"
 790   ;;
 791   --enable-debug)
 792       # Enable debugging options that aren't excessively noisy
 793       debug_tcg="yes"
 794       meson_option_parse --enable-debug-graph-lock ""
 795       meson_option_parse --enable-debug-mutex ""
 796       meson_option_add -Doptimization=0
 797   ;;
 798   --disable-tcg) tcg="disabled"
 799                  plugins="no"
 800   ;;
 801   --enable-tcg) tcg="enabled"
 802   ;;
 803   --disable-system) softmmu="no"
 804   ;;
 805   --enable-system) softmmu="yes"
 806   ;;
 807   --disable-user)
 808       linux_user="no" ;
 809       bsd_user="no" ;
 810   ;;
 811   --enable-user) ;;
 812   --disable-linux-user) linux_user="no"
 813   ;;
 814   --enable-linux-user) linux_user="yes"
 815   ;;
 816   --disable-bsd-user) bsd_user="no"
 817   ;;
 818   --enable-bsd-user) bsd_user="yes"
 819   ;;
 820   --enable-pie) pie="yes"
 821   ;;
 822   --disable-pie) pie="no"
 823   ;;
 824   --enable-werror) werror="yes"
 825   ;;
 826   --disable-werror) werror="no"
 827   ;;
 828   --enable-stack-protector) stack_protector="yes"
 829   ;;
 830   --disable-stack-protector) stack_protector="no"
 831   ;;
 832   --enable-cfi)
 833       cfi="true";
 834       meson_option_add -Db_lto=true
 835   ;;
 836   --disable-cfi) cfi="false"
 837   ;;
 838   --disable-fdt) fdt="disabled"
 839   ;;
 840   --enable-fdt) fdt="enabled"
 841   ;;
 842   --enable-fdt=git) fdt="internal"
 843   ;;
 844   --enable-fdt=*) fdt="$optarg"
 845   ;;
 846   --with-coroutine=*) coroutine="$optarg"
 847   ;;
 848   --with-git=*) git="$optarg"
 849   ;;
 850   --with-git-submodules=*)
 851       git_submodules_action="$optarg"
 852   ;;
 853   --disable-pypi) pypi="disabled"
 854   ;;
 855   --enable-pypi) pypi="enabled"
 856   ;;
 857   --enable-plugins) if test "$mingw32" = "yes"; then
 858                         error_exit "TCG plugins not currently supported on Windows platforms"
 859                     else
 860                         plugins="yes"
 861                     fi
 862   ;;
 863   --disable-plugins) plugins="no"
 864   ;;
 865   --enable-containers) use_containers="yes"
 866   ;;
 867   --disable-containers) use_containers="no"
 868   ;;
 869   --gdb=*) gdb_bin="$optarg"
 870   ;;
 871   --enable-vfio-user-server) vfio_user_server="enabled"
 872   ;;
 873   --disable-vfio-user-server) vfio_user_server="disabled"
 874   ;;
 875   # everything else has the same name in configure and meson
 876   --*) meson_option_parse "$opt" "$optarg"
 877   ;;
 878   esac
 879 done
 880
 881 # test for any invalid configuration combinations
 882 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 883     error_exit "Can't enable plugins on non-TCG builds"
 884 fi
 885
 886 case $git_submodules_action in
 887     update|validate)
 888         if test ! -e "$source_path/.git"; then
 889             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 890             exit 1
 891         fi
 892     ;;
 893     ignore)
 894         if ! test -f "$source_path/ui/keycodemapdb/README"
 895         then
 896             echo
 897             echo "ERROR: missing GIT submodules"
 898             echo
 899             if test -e "$source_path/.git"; then
 900                 echo "--with-git-submodules=ignore specified but submodules were not"
 901                 echo "checked out.  Please initialize and update submodules."
 902             else
 903                 echo "This is not a GIT checkout but module content appears to"
 904                 echo "be missing. Do not use 'git archive' or GitHub download links"
 905                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 906                 echo "supported with source archives linked from:"
 907                 echo
 908                 echo "  https://www.qemu.org/download/#source"
 909                 echo
 910                 echo "Developers working with GIT can use scripts/archive-source.sh"
 911                 echo "if they need to create valid source archives."
 912             fi
 913             echo
 914             exit 1
 915         fi
 916     ;;
 917     *)
 918         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 919         exit 1
 920     ;;
 921 esac
 922
 923 default_target_list=""
 924 mak_wilds=""
 925
 926 if [ "$linux_user" != no ]; then
 927     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 928         linux_user=yes
 929     elif [ "$linux_user" = yes ]; then
 930         error_exit "linux-user not supported on this architecture"
 931     fi
 932 fi
 933 if [ "$bsd_user" != no ]; then
 934     if [ "$bsd_user" = "" ]; then
 935         test $targetos = freebsd && bsd_user=yes
 936     fi
 937     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 938         error_exit "bsd-user not supported on this host OS"
 939     fi
 940 fi
 941 if [ "$softmmu" = "yes" ]; then
 942     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 943 fi
 944 if [ "$linux_user" = "yes" ]; then
 945     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 946 fi
 947 if [ "$bsd_user" = "yes" ]; then
 948     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 949 fi
 950
 951 for config in $mak_wilds; do
 952     target="$(basename "$config" .mak)"
 953     if echo "$target_list_exclude" | grep -vq "$target"; then
 954         default_target_list="${default_target_list} $target"
 955     fi
 956 done
 957
 958 if test x"$show_help" = x"yes" ; then
 959 cat << EOF
 960
 961 Usage: configure [options]
 962 Options: [defaults in brackets after descriptions]
 963
 964 Standard options:
 965   --help                   print this message
 966   --prefix=PREFIX          install in PREFIX [$prefix]
 967   --target-list=LIST       set target list (default: build all)
 968 $(echo Available targets: $default_target_list | \
 969   fold -s -w 53 | sed -e 's/^/                           /')
 970   --target-list-exclude=LIST exclude a set of targets from the default target-list
 971
 972 Advanced options (experts only):
 973   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 974   --cc=CC                  use C compiler CC [$cc]
 975   --host-cc=CC             use C compiler CC [$host_cc] for code run at
 976                            build time
 977   --cxx=CXX                use C++ compiler CXX [$cxx]
 978   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
 979   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
 980   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
 981   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
 982   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
 983   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
 984   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
 985   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
 986   --make=MAKE              use specified make [$make]
 987   --python=PYTHON          use specified python [$python]
 988   --ninja=NINJA            use specified ninja [$ninja]
 989   --smbd=SMBD              use specified smbd [$smbd]
 990   --with-git=GIT           use specified git [$git]
 991   --with-git-submodules=update   update git submodules (default if .git dir exists)
 992   --with-git-submodules=validate fail if git submodules are not up to date
 993   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
 994   --static                 enable static build [$static]
 995   --bindir=PATH            install binaries in PATH
 996   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
 997   --without-default-features default all --enable-* options to "disabled"
 998   --without-default-devices  do not include any device that is not needed to
 999                            start the emulator (only use if you are including
1000                            desired devices in configs/devices/)
1001   --with-devices-ARCH=NAME override default configs/devices
1002   --enable-debug           enable common debug build options
1003   --disable-werror         disable compilation abort on warning
1004   --disable-stack-protector disable compiler-provided stack protection
1005   --cpu=CPU                Build for host CPU [$cpu]
1006   --with-coroutine=BACKEND coroutine backend. Supported options:
1007                            ucontext, sigaltstack, windows
1008   --enable-plugins
1009                            enable plugins via shared library loading
1010   --disable-containers     don't use containers for cross-building
1011   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1012 EOF
1013   meson_options_help
1014 cat << EOF
1015   system          all system emulation targets
1016   user            supported user emulation targets
1017   linux-user      all linux usermode emulation targets
1018   bsd-user        all BSD usermode emulation targets
1019   pie             Position Independent Executables
1020   debug-tcg       TCG debugging (default is disabled)
1021   debug-info      debugging information
1022
1023 NOTE: The object files are built at the place where configure is launched
1024 EOF
1025 exit 0
1026 fi
1027
1028 # Remove old dependency files to make sure that they get properly regenerated
1029 rm -f ./*/config-devices.mak.d
1030
1031 if test -z "$python"
1032 then
1033     # If first_python is set, there was a binary somewhere even though
1034     # it was not suitable.  Use it for the error message.
1035     if test -n "$first_python"; then
1036         error_exit "Cannot use '$first_python', Python >= 3.7 is required." \
1037             "Use --python=/path/to/python to specify a supported Python."
1038     else
1039         error_exit "Python not found. Use --python=/path/to/python"
1040     fi
1041 fi
1042
1043 if ! has "$make"
1044 then
1045     error_exit "GNU make ($make) not found"
1046 fi
1047
1048 if ! check_py_version "$python"; then
1049   error_exit "Cannot use '$python', Python >= 3.7 is required." \
1050              "Use --python=/path/to/python to specify a supported Python." \
1051              "Maybe try:" \
1052              "  openSUSE Leap 15.3+: zypper install python39" \
1053              "  CentOS 8: dnf install python38"
1054 fi
1055
1056 # Resolve PATH
1057 python="$(command -v "$python")"
1058
1059 # Create a Python virtual environment using our configured python.
1060 # The stdout of this script will be the location of a symlink that
1061 # points to the configured Python.
1062 # Entry point scripts for pip, meson, and sphinx are generated if those
1063 # packages are present.
1064
1065 # Defaults assumed for now:
1066 # - venv is cleared if it exists already;
1067 # - venv is allowed to use system packages;
1068 # - all setup can be performed offline;
1069 # - missing packages may be fetched from PyPI,
1070 #   unless --disable-pypi is passed.
1071 # - pip is not installed into the venv when possible,
1072 #   but ensurepip is called as a fallback when necessary.
1073
1074 echo "python determined to be '$python'"
1075 echo "python version: $($python --version)"
1076
1077 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
1078 if test "$?" -ne 0 ; then
1079     error_exit "python venv creation failed"
1080 fi
1081
1082 # Suppress writing compiled files
1083 python="$python -B"
1084 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
1085
1086 mkvenv_flags=""
1087 if test "$pypi" = "enabled" ; then
1088     mkvenv_flags="--online"
1089 fi
1090
1091 if ! $mkvenv ensure \
1092      $mkvenv_flags \
1093      --dir "${source_path}/python/wheels" \
1094      --diagnose "meson" \
1095      "meson>=0.63.0" ;
1096 then
1097     exit 1
1098 fi
1099
1100 # At this point, we expect Meson to be installed and available.
1101 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
1102 # We ignore PATH completely here: we want to use the venv's Meson
1103 # *exclusively*.
1104
1105 meson="$(cd pyvenv/bin; pwd)/meson"
1106
1107 # Conditionally ensure Sphinx is installed.
1108
1109 mkvenv_flags=""
1110 if test "$pypi" = "enabled" -a "$docs" = "enabled" ; then
1111     mkvenv_flags="--online"
1112 fi
1113
1114 if test "$docs" != "disabled" ; then
1115     if ! $mkvenv ensure \
1116          $mkvenv_flags \
1117          --diagnose "sphinx-build" \
1118          "sphinx>=1.6.0" "sphinx-rtd-theme>=0.5.0";
1119     then
1120         if test "$docs" = "enabled" ; then
1121             exit 1
1122         fi
1123         echo "Sphinx not found/usable, disabling docs."
1124         docs=disabled
1125     else
1126         docs=enabled
1127     fi
1128 fi
1129
1130 # Probe for ninja
1131
1132 if test -z "$ninja"; then
1133     for c in ninja ninja-build samu; do
1134         if has $c; then
1135             ninja=$(command -v "$c")
1136             break
1137         fi
1138     done
1139     if test -z "$ninja"; then
1140       error_exit "Cannot find Ninja"
1141     fi
1142 fi
1143
1144 # Check that the C compiler works. Doing this here before testing
1145 # the host CPU ensures that we had a valid CC to autodetect the
1146 # $cpu var (and we should bail right here if that's not the case).
1147 # It also allows the help message to be printed without a CC.
1148 write_c_skeleton;
1149 if compile_object ; then
1150   : C compiler works ok
1151 else
1152     error_exit "\"$cc\" either does not exist or does not work"
1153 fi
1154 if ! compile_prog ; then
1155     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1156 fi
1157
1158 # Consult white-list to determine whether to enable werror
1159 # by default.  Only enable by default for git builds
1160 if test -z "$werror" ; then
1161     if test "$git_submodules_action" != "ignore" && \
1162         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1163         werror="yes"
1164     else
1165         werror="no"
1166     fi
1167 fi
1168
1169 if test "$targetos" = "bogus"; then
1170     # Now that we know that we're not printing the help and that
1171     # the compiler works (so the results of the check_defines we used
1172     # to identify the OS are reliable), if we didn't recognize the
1173     # host OS we should stop now.
1174     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1175 fi
1176
1177 # Check whether the compiler matches our minimum requirements:
1178 cat > $TMPC << EOF
1179 #if defined(__clang_major__) && defined(__clang_minor__)
1180 # ifdef __apple_build_version__
1181 #  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1182 #   error You need at least XCode Clang v12.0 to compile QEMU
1183 #  endif
1184 # else
1185 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1186 #   error You need at least Clang v10.0 to compile QEMU
1187 #  endif
1188 # endif
1189 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1190 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1191 #  error You need at least GCC v7.4.0 to compile QEMU
1192 # endif
1193 #else
1194 # error You either need GCC or Clang to compiler QEMU
1195 #endif
1196 int main (void) { return 0; }
1197 EOF
1198 if ! compile_prog "" "" ; then
1199     error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1200 fi
1201
1202 # Accumulate -Wfoo and -Wno-bar separately.
1203 # We will list all of the enable flags first, and the disable flags second.
1204 # Note that we do not add -Werror, because that would enable it for all
1205 # configure tests. If a configure test failed due to -Werror this would
1206 # just silently disable some features, so it's too error prone.
1207
1208 warn_flags=
1209 add_to warn_flags -Wundef
1210 add_to warn_flags -Wwrite-strings
1211 add_to warn_flags -Wmissing-prototypes
1212 add_to warn_flags -Wstrict-prototypes
1213 add_to warn_flags -Wredundant-decls
1214 add_to warn_flags -Wold-style-declaration
1215 add_to warn_flags -Wold-style-definition
1216 add_to warn_flags -Wtype-limits
1217 add_to warn_flags -Wformat-security
1218 add_to warn_flags -Wformat-y2k
1219 add_to warn_flags -Winit-self
1220 add_to warn_flags -Wignored-qualifiers
1221 add_to warn_flags -Wempty-body
1222 add_to warn_flags -Wnested-externs
1223 add_to warn_flags -Wendif-labels
1224 add_to warn_flags -Wexpansion-to-defined
1225 add_to warn_flags -Wimplicit-fallthrough=2
1226 add_to warn_flags -Wmissing-format-attribute
1227
1228 if test "$targetos" != "darwin"; then
1229     add_to warn_flags -Wthread-safety
1230 fi
1231
1232 nowarn_flags=
1233 add_to nowarn_flags -Wno-initializer-overrides
1234 add_to nowarn_flags -Wno-missing-include-dirs
1235 add_to nowarn_flags -Wno-shift-negative-value
1236 add_to nowarn_flags -Wno-string-plus-int
1237 add_to nowarn_flags -Wno-typedef-redefinition
1238 add_to nowarn_flags -Wno-tautological-type-limit-compare
1239 add_to nowarn_flags -Wno-psabi
1240 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1241
1242 gcc_flags="$warn_flags $nowarn_flags"
1243
1244 cc_has_warning_flag() {
1245     write_c_skeleton;
1246
1247     # Use the positive sense of the flag when testing for -Wno-wombat
1248     # support (gcc will happily accept the -Wno- form of unknown
1249     # warning options).
1250     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1251     compile_prog "-Werror $optflag" ""
1252 }
1253
1254 objcc_has_warning_flag() {
1255     cat > $TMPM <<EOF
1256 int main(void) { return 0; }
1257 EOF
1258
1259     # Use the positive sense of the flag when testing for -Wno-wombat
1260     # support (gcc will happily accept the -Wno- form of unknown
1261     # warning options).
1262     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1263     do_objc -Werror $optflag \
1264       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1265       -o $TMPE $TMPM $QEMU_LDFLAGS
1266 }
1267
1268 for flag in $gcc_flags; do
1269     if cc_has_warning_flag $flag ; then
1270         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1271     fi
1272     if objcc_has_warning_flag $flag ; then
1273         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1274     fi
1275 done
1276
1277 if test "$stack_protector" != "no"; then
1278   cat > $TMPC << EOF
1279 int main(int argc, char *argv[])
1280 {
1281     char arr[64], *p = arr, *c = argv[argc - 1];
1282     while (*c) {
1283         *p++ = *c++;
1284     }
1285     return 0;
1286 }
1287 EOF
1288   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1289   sp_on=0
1290   for flag in $gcc_flags; do
1291     # We need to check both a compile and a link, since some compiler
1292     # setups fail only on a .c->.o compile and some only at link time
1293     if compile_object "-Werror $flag" &&
1294        compile_prog "-Werror $flag" ""; then
1295       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1296       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1297       sp_on=1
1298       break
1299     fi
1300   done
1301   if test "$stack_protector" = yes; then
1302     if test $sp_on = 0; then
1303       error_exit "Stack protector not supported"
1304     fi
1305   fi
1306 fi
1307
1308 if test "$static" = "yes" ; then
1309   if test "$plugins" = "yes"; then
1310     error_exit "static and plugins are mutually incompatible"
1311   else
1312     plugins="no"
1313   fi
1314 fi
1315 test "$plugins" = "" && plugins=yes
1316
1317 cat > $TMPC << EOF
1318
1319 #ifdef __linux__
1320 #  define THREAD __thread
1321 #else
1322 #  define THREAD
1323 #endif
1324 static THREAD int tls_var;
1325 int main(void) { return tls_var; }
1326 EOF
1327
1328 # Meson currently only handles pie as a boolean for now so if we have
1329 # explicitly disabled PIE we need to extend our cflags because it wont.
1330 if test "$static" = "yes"; then
1331   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1332     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1333     pie="yes"
1334   elif test "$pie" = "yes"; then
1335     error_exit "-static-pie not available due to missing toolchain support"
1336   else
1337     pie="no"
1338     QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
1339   fi
1340 elif test "$pie" = "no"; then
1341   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1342     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1343     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1344     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1345   fi
1346 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1347   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1348   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1349   pie="yes"
1350 elif test "$pie" = "yes"; then
1351   error_exit "PIE not available due to missing toolchain support"
1352 else
1353   echo "Disabling PIE due to missing toolchain support"
1354   pie="no"
1355 fi
1356
1357 ##########################################
1358 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1359 # use i686 as default anyway, but for those that don't, an explicit
1360 # specification is necessary
1361
1362 if test "$cpu" = "i386"; then
1363   cat > $TMPC << EOF
1364 static int sfaa(int *ptr)
1365 {
1366   return __sync_fetch_and_and(ptr, 0);
1367 }
1368
1369 int main(void)
1370 {
1371   int val = 42;
1372   val = __sync_val_compare_and_swap(&val, 0, 1);
1373   sfaa(&val);
1374   return val;
1375 }
1376 EOF
1377   if ! compile_prog "" "" ; then
1378     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1379   fi
1380 fi
1381
1382 if test -z "${target_list+xxx}" ; then
1383     default_targets=yes
1384     for target in $default_target_list; do
1385         target_list="$target_list $target"
1386     done
1387     target_list="${target_list# }"
1388 else
1389     default_targets=no
1390     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1391     for target in $target_list; do
1392         # Check that we recognised the target name; this allows a more
1393         # friendly error message than if we let it fall through.
1394         case " $default_target_list " in
1395             *" $target "*)
1396                 ;;
1397             *)
1398                 error_exit "Unknown target name '$target'"
1399                 ;;
1400         esac
1401     done
1402 fi
1403
1404 # see if system emulation was really requested
1405 case " $target_list " in
1406   *"-softmmu "*) softmmu=yes
1407   ;;
1408   *) softmmu=no
1409   ;;
1410 esac
1411
1412 if test "$tcg" = "auto"; then
1413   if test -z "$target_list"; then
1414     tcg="disabled"
1415   else
1416     tcg="enabled"
1417   fi
1418 fi
1419
1420 if test "$tcg" = "enabled"; then
1421     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1422     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1423 fi
1424
1425 ##########################################
1426 # big/little endian test
1427 cat > $TMPC << EOF
1428 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1429 # error LITTLE
1430 #endif
1431 int main(void) { return 0; }
1432 EOF
1433
1434 if ! compile_prog ; then
1435   bigendian="no"
1436 else
1437   cat > $TMPC << EOF
1438 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1439 # error BIG
1440 #endif
1441 int main(void) { return 0; }
1442 EOF
1443
1444   if ! compile_prog ; then
1445     bigendian="yes"
1446   else
1447     echo big/little test failed
1448     exit 1
1449   fi
1450 fi
1451
1452 ##########################################
1453 # fdt probe
1454
1455 case "$fdt" in
1456   auto | enabled | internal)
1457     # Simpler to always update submodule, even if not needed.
1458     git_submodules="${git_submodules} dtc"
1459     ;;
1460 esac
1461
1462 ##########################################
1463 # check and set a backend for coroutine
1464
1465 # We prefer ucontext, but it's not always possible. The fallback
1466 # is sigcontext. On Windows the only valid backend is the Windows
1467 # specific one.
1468
1469 ucontext_works=no
1470 if test "$darwin" != "yes"; then
1471   cat > $TMPC << EOF
1472 #include <ucontext.h>
1473 #ifdef __stub_makecontext
1474 #error Ignoring glibc stub makecontext which will always fail
1475 #endif
1476 int main(void) { makecontext(0, 0, 0); return 0; }
1477 EOF
1478   if compile_prog "" "" ; then
1479     ucontext_works=yes
1480   fi
1481 fi
1482
1483 if test "$coroutine" = ""; then
1484   if test "$mingw32" = "yes"; then
1485     coroutine=win32
1486   elif test "$ucontext_works" = "yes"; then
1487     coroutine=ucontext
1488   else
1489     coroutine=sigaltstack
1490   fi
1491 else
1492   case $coroutine in
1493   windows)
1494     if test "$mingw32" != "yes"; then
1495       error_exit "'windows' coroutine backend only valid for Windows"
1496     fi
1497     # Unfortunately the user visible backend name doesn't match the
1498     # coroutine-*.c filename for this case, so we have to adjust it here.
1499     coroutine=win32
1500     ;;
1501   ucontext)
1502     if test "$ucontext_works" != "yes"; then
1503       error_exit "'ucontext' backend requested but makecontext not available"
1504     fi
1505     ;;
1506   sigaltstack)
1507     if test "$mingw32" = "yes"; then
1508       error_exit "only the 'windows' coroutine backend is valid for Windows"
1509     fi
1510     ;;
1511   *)
1512     error_exit "unknown coroutine backend $coroutine"
1513     ;;
1514   esac
1515 fi
1516
1517 ########################################
1518 # check if ccache is interfering with
1519 # semantic analysis of macros
1520
1521 unset CCACHE_CPP2
1522 ccache_cpp2=no
1523 cat > $TMPC << EOF
1524 static const int Z = 1;
1525 #define fn() ({ Z; })
1526 #define TAUT(X) ((X) == Z)
1527 #define PAREN(X, Y) (X == Y)
1528 #define ID(X) (X)
1529 int main(void)
1530 {
1531     int x = 0, y = 0;
1532     x = ID(x);
1533     x = fn();
1534     fn();
1535     if (PAREN(x, y)) return 0;
1536     if (TAUT(Z)) return 0;
1537     return 0;
1538 }
1539 EOF
1540
1541 if ! compile_object "-Werror"; then
1542     ccache_cpp2=yes
1543 fi
1544
1545 ##########################################
1546 # functions to probe cross compilers
1547
1548 container="no"
1549 runc=""
1550 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1551     case $($python "$source_path"/tests/docker/docker.py probe) in
1552         *docker) container=docker ;;
1553         podman) container=podman ;;
1554         no) container=no ;;
1555     esac
1556     if test "$container" != "no"; then
1557         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1558         runc=$($python "$source_path"/tests/docker/docker.py probe)
1559     fi
1560 fi
1561
1562 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1563 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1564 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1565 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1566 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1567 : ${cross_prefix_armeb="$cross_prefix_arm"}
1568 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1569 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1570 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1571 : ${cross_prefix_i386="i686-linux-gnu-"}
1572 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1573 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1574 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1575 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1576 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1577 : ${cross_prefix_mips="mips-linux-gnu-"}
1578 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1579 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1580 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1581 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1582 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1583 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1584 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1585 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1586 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1587 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1588
1589 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1590 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1591 : ${cross_cc_armeb="$cross_cc_arm"}
1592 : ${cross_cc_cflags_armeb="-mbig-endian"}
1593 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1594 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1595 : ${cross_cc_cflags_i386="-m32"}
1596 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1597 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1598 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1599 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1600 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1601 : ${cross_cc_sparc="$cross_cc_sparc64"}
1602 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1603 : ${cross_cc_cflags_x86_64="-m64"}
1604
1605 compute_target_variable() {
1606   eval "$2="
1607   if eval test -n "\"\${cross_prefix_$1}\""; then
1608     if eval has "\"\${cross_prefix_$1}\$3\""; then
1609       eval "$2=\"\${cross_prefix_$1}\$3\""
1610     fi
1611   fi
1612 }
1613
1614 have_target() {
1615   for i; do
1616     case " $target_list " in
1617       *" $i "*) return 0;;
1618       *) ;;
1619     esac
1620   done
1621   return 1
1622 }
1623
1624 # probe_target_compiler TARGET
1625 #
1626 # Look for a compiler for the given target, either native or cross.
1627 # Set variables target_* if a compiler is found, and container_cross_*
1628 # if a Docker-based cross-compiler image is known for the target.
1629 # Set got_cross_cc to yes/no depending on whether a non-container-based
1630 # compiler was found.
1631 #
1632 # If TARGET is a user-mode emulation target, also set build_static to
1633 # "y" if static linking is possible.
1634 #
1635 probe_target_compiler() {
1636   # reset all output variables
1637   got_cross_cc=no
1638   container_image=
1639   container_hosts=
1640   container_cross_cc=
1641   container_cross_ar=
1642   container_cross_as=
1643   container_cross_ld=
1644   container_cross_nm=
1645   container_cross_objcopy=
1646   container_cross_ranlib=
1647   container_cross_strip=
1648
1649   # We shall skip configuring the target compiler if the user didn't
1650   # bother enabling an appropriate guest. This avoids building
1651   # extraneous firmware images and tests.
1652   if test "${target_list#*$1}" = "$1"; then
1653       return 1
1654   fi
1655
1656   target_arch=${1%%-*}
1657   case $target_arch in
1658     aarch64) container_hosts="x86_64 aarch64" ;;
1659     alpha) container_hosts=x86_64 ;;
1660     arm) container_hosts="x86_64 aarch64" ;;
1661     cris) container_hosts=x86_64 ;;
1662     hexagon) container_hosts=x86_64 ;;
1663     hppa) container_hosts=x86_64 ;;
1664     i386) container_hosts=x86_64 ;;
1665     loongarch64) container_hosts=x86_64 ;;
1666     m68k) container_hosts=x86_64 ;;
1667     microblaze) container_hosts=x86_64 ;;
1668     mips64el) container_hosts=x86_64 ;;
1669     mips64) container_hosts=x86_64 ;;
1670     mipsel) container_hosts=x86_64 ;;
1671     mips) container_hosts=x86_64 ;;
1672     nios2) container_hosts=x86_64 ;;
1673     ppc) container_hosts=x86_64 ;;
1674     ppc64|ppc64le) container_hosts=x86_64 ;;
1675     riscv64) container_hosts=x86_64 ;;
1676     s390x) container_hosts=x86_64 ;;
1677     sh4) container_hosts=x86_64 ;;
1678     sparc64) container_hosts=x86_64 ;;
1679     tricore) container_hosts=x86_64 ;;
1680     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1681     xtensa*) container_hosts=x86_64 ;;
1682   esac
1683
1684   for host in $container_hosts; do
1685     test "$container" != no || continue
1686     test "$host" = "$cpu" || continue
1687     case $target_arch in
1688       aarch64)
1689         # We don't have any bigendian build tools so we only use this for AArch64
1690         container_image=debian-arm64-cross
1691         container_cross_prefix=aarch64-linux-gnu-
1692         container_cross_cc=${container_cross_prefix}gcc-10
1693         ;;
1694       alpha)
1695         container_image=debian-alpha-cross
1696         container_cross_prefix=alpha-linux-gnu-
1697         ;;
1698       arm)
1699         # We don't have any bigendian build tools so we only use this for ARM
1700         container_image=debian-armhf-cross
1701         container_cross_prefix=arm-linux-gnueabihf-
1702         ;;
1703       cris)
1704         container_image=fedora-cris-cross
1705         container_cross_prefix=cris-linux-gnu-
1706         ;;
1707       hexagon)
1708         container_image=debian-hexagon-cross
1709         container_cross_prefix=hexagon-unknown-linux-musl-
1710         container_cross_cc=${container_cross_prefix}clang
1711         ;;
1712       hppa)
1713         container_image=debian-hppa-cross
1714         container_cross_prefix=hppa-linux-gnu-
1715         ;;
1716       i386)
1717         container_image=fedora-i386-cross
1718         container_cross_prefix=
1719         ;;
1720       loongarch64)
1721         container_image=debian-loongarch-cross
1722         container_cross_prefix=loongarch64-unknown-linux-gnu-
1723         ;;
1724       m68k)
1725         container_image=debian-m68k-cross
1726         container_cross_prefix=m68k-linux-gnu-
1727         ;;
1728       microblaze)
1729         container_image=debian-microblaze-cross
1730         container_cross_prefix=microblaze-linux-musl-
1731         ;;
1732       mips64el)
1733         container_image=debian-mips64el-cross
1734         container_cross_prefix=mips64el-linux-gnuabi64-
1735         ;;
1736       mips64)
1737         container_image=debian-mips64-cross
1738         container_cross_prefix=mips64-linux-gnuabi64-
1739         ;;
1740       mipsel)
1741         container_image=debian-mipsel-cross
1742         container_cross_prefix=mipsel-linux-gnu-
1743         ;;
1744       mips)
1745         container_image=debian-mips-cross
1746         container_cross_prefix=mips-linux-gnu-
1747         ;;
1748       nios2)
1749         container_image=debian-nios2-cross
1750         container_cross_prefix=nios2-linux-gnu-
1751         ;;
1752       ppc)
1753         container_image=debian-powerpc-test-cross
1754         container_cross_prefix=powerpc-linux-gnu-
1755         container_cross_cc=${container_cross_prefix}gcc-10
1756         ;;
1757       ppc64|ppc64le)
1758         container_image=debian-powerpc-test-cross
1759         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1760         container_cross_cc=${container_cross_prefix}gcc-10
1761         ;;
1762       riscv64)
1763         container_image=debian-riscv64-test-cross
1764         container_cross_prefix=riscv64-linux-gnu-
1765         ;;
1766       s390x)
1767         container_image=debian-s390x-cross
1768         container_cross_prefix=s390x-linux-gnu-
1769         ;;
1770       sh4)
1771         container_image=debian-sh4-cross
1772         container_cross_prefix=sh4-linux-gnu-
1773         ;;
1774       sparc64)
1775         container_image=debian-sparc64-cross
1776         container_cross_prefix=sparc64-linux-gnu-
1777         ;;
1778       tricore)
1779         container_image=debian-tricore-cross
1780         container_cross_prefix=tricore-
1781         container_cross_as=tricore-as
1782         container_cross_ld=tricore-ld
1783         break
1784         ;;
1785       x86_64)
1786         container_image=debian-amd64-cross
1787         container_cross_prefix=x86_64-linux-gnu-
1788         ;;
1789       xtensa*)
1790         container_hosts=x86_64
1791         container_image=debian-xtensa-cross
1792
1793         # default to the dc232b cpu
1794         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1795         ;;
1796     esac
1797     : ${container_cross_cc:=${container_cross_prefix}gcc}
1798     : ${container_cross_ar:=${container_cross_prefix}ar}
1799     : ${container_cross_as:=${container_cross_prefix}as}
1800     : ${container_cross_ld:=${container_cross_prefix}ld}
1801     : ${container_cross_nm:=${container_cross_prefix}nm}
1802     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1803     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1804     : ${container_cross_strip:=${container_cross_prefix}strip}
1805   done
1806
1807   try=cross
1808   case "$target_arch:$cpu" in
1809     aarch64_be:aarch64 | \
1810     armeb:arm | \
1811     i386:x86_64 | \
1812     mips*:mips64 | \
1813     ppc*:ppc64 | \
1814     sparc:sparc64 | \
1815     "$cpu:$cpu")
1816       try='native cross' ;;
1817   esac
1818   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1819   for thistry in $try; do
1820     case $thistry in
1821     native)
1822       target_cc=$cc
1823       target_ccas=$ccas
1824       target_ar=$ar
1825       target_as=$as
1826       target_ld=$ld
1827       target_nm=$nm
1828       target_objcopy=$objcopy
1829       target_ranlib=$ranlib
1830       target_strip=$strip
1831       ;;
1832     cross)
1833       target_cc=
1834       if eval test -n "\"\${cross_cc_$target_arch}\""; then
1835         if eval has "\"\${cross_cc_$target_arch}\""; then
1836           eval "target_cc=\"\${cross_cc_$target_arch}\""
1837         fi
1838       else
1839         compute_target_variable $target_arch target_cc gcc
1840       fi
1841       target_ccas=$target_cc
1842       compute_target_variable $target_arch target_ar ar
1843       compute_target_variable $target_arch target_as as
1844       compute_target_variable $target_arch target_ld ld
1845       compute_target_variable $target_arch target_nm nm
1846       compute_target_variable $target_arch target_objcopy objcopy
1847       compute_target_variable $target_arch target_ranlib ranlib
1848       compute_target_variable $target_arch target_strip strip
1849       ;;
1850     esac
1851
1852     if test -n "$target_cc"; then
1853       case $target_arch in
1854         i386|x86_64)
1855           if $target_cc --version | grep -qi "clang"; then
1856             continue
1857           fi
1858           ;;
1859       esac
1860     elif test -n "$target_as" && test -n "$target_ld"; then
1861       # Special handling for assembler only targets
1862       case $target in
1863         tricore-softmmu)
1864           build_static=
1865           got_cross_cc=yes
1866           break
1867           ;;
1868         *)
1869           continue
1870           ;;
1871       esac
1872     else
1873       continue
1874     fi
1875
1876     write_c_skeleton
1877     case $1 in
1878       *-softmmu)
1879         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1880           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1881           got_cross_cc=yes
1882           break
1883         fi
1884         ;;
1885       *)
1886         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1887           build_static=y
1888           got_cross_cc=yes
1889           break
1890         fi
1891         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1892           build_static=
1893           got_cross_cc=yes
1894           break
1895         fi
1896         ;;
1897     esac
1898   done
1899   if test $got_cross_cc != yes; then
1900     build_static=
1901     target_cc=
1902     target_ccas=
1903     target_ar=
1904     target_as=
1905     target_ld=
1906     target_nm=
1907     target_objcopy=
1908     target_ranlib=
1909     target_strip=
1910   fi
1911   test -n "$target_cc"
1912 }
1913
1914 write_target_makefile() {
1915   echo "EXTRA_CFLAGS=$target_cflags"
1916   if test -z "$target_cc" && test -z "$target_as"; then
1917     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1918     echo "$1: docker-image-$container_image" >> Makefile.prereqs
1919     if test -n "$container_cross_cc"; then
1920       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1921       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1922     fi
1923     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1924     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1925     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1926     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1927     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1928     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1929     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1930   else
1931     if test -n "$target_cc"; then
1932       echo "CC=$target_cc"
1933       echo "CCAS=$target_ccas"
1934     fi
1935     if test -n "$target_ar"; then
1936       echo "AR=$target_ar"
1937     fi
1938     if test -n "$target_as"; then
1939       echo "AS=$target_as"
1940     fi
1941     if test -n "$target_ld"; then
1942       echo "LD=$target_ld"
1943     fi
1944     if test -n "$target_nm"; then
1945       echo "NM=$target_nm"
1946     fi
1947     if test -n "$target_objcopy"; then
1948       echo "OBJCOPY=$target_objcopy"
1949     fi
1950     if test -n "$target_ranlib"; then
1951       echo "RANLIB=$target_ranlib"
1952     fi
1953     if test -n "$target_strip"; then
1954       echo "STRIP=$target_strip"
1955     fi
1956   fi
1957 }
1958
1959 ##########################################
1960 # check for vfio_user_server
1961
1962 case "$vfio_user_server" in
1963   enabled )
1964     if test "$git_submodules_action" != "ignore"; then
1965       git_submodules="${git_submodules} subprojects/libvfio-user"
1966     fi
1967     ;;
1968 esac
1969
1970 #######################################
1971 # cross-compiled firmware targets
1972
1973 # Set up build tree symlinks that point back into the source tree
1974 # (these can be both files and directories).
1975 # Caution: avoid adding files or directories here using wildcards. This
1976 # will result in problems later if a new file matching the wildcard is
1977 # added to the source tree -- nothing will cause configure to be rerun
1978 # so the build tree will be missing the link back to the new file, and
1979 # tests might fail. Prefer to keep the relevant files in their own
1980 # directory and symlink the directory instead.
1981 LINKS="Makefile"
1982 LINKS="$LINKS docs/config"
1983 LINKS="$LINKS pc-bios/optionrom/Makefile"
1984 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1985 LINKS="$LINKS pc-bios/vof/Makefile"
1986 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1987 LINKS="$LINKS tests/avocado tests/data"
1988 LINKS="$LINKS tests/qemu-iotests/check"
1989 LINKS="$LINKS python"
1990 LINKS="$LINKS contrib/plugins/Makefile "
1991 for f in $LINKS ; do
1992     if [ -e "$source_path/$f" ]; then
1993         mkdir -p "$(dirname ./"$f")"
1994         symlink "$source_path/$f" "$f"
1995     fi
1996 done
1997
1998 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1999
2000 # Mac OS X ships with a broken assembler
2001 roms=
2002 if have_target i386-softmmu x86_64-softmmu && \
2003         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2004         test "$targetos" != "haiku" && \
2005         probe_target_compiler i386-softmmu; then
2006     roms="pc-bios/optionrom"
2007     config_mak=pc-bios/optionrom/config.mak
2008     echo "# Automatically generated by configure - do not modify" > $config_mak
2009     echo "TOPSRC_DIR=$source_path" >> $config_mak
2010     write_target_makefile >> $config_mak
2011 fi
2012
2013 if have_target ppc-softmmu ppc64-softmmu && \
2014         probe_target_compiler ppc-softmmu; then
2015     roms="$roms pc-bios/vof"
2016     config_mak=pc-bios/vof/config.mak
2017     echo "# Automatically generated by configure - do not modify" > $config_mak
2018     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2019     write_target_makefile >> $config_mak
2020 fi
2021
2022 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2023 # (which is the lowest architecture level that Clang supports)
2024 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2025   write_c_skeleton
2026   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2027   has_z900=$?
2028   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2029     if [ $has_z900 != 0 ]; then
2030       echo "WARNING: Your compiler does not support the z900!"
2031       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2032     fi
2033     roms="$roms pc-bios/s390-ccw"
2034     config_mak=pc-bios/s390-ccw/config-host.mak
2035     echo "# Automatically generated by configure - do not modify" > $config_mak
2036     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2037     write_target_makefile >> $config_mak
2038     # SLOF is required for building the s390-ccw firmware on s390x,
2039     # since it is using the libnet code from SLOF for network booting.
2040     git_submodules="${git_submodules} roms/SLOF"
2041   fi
2042 fi
2043
2044 #######################################
2045 # generate config-host.mak
2046
2047 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2048     exit 1
2049 fi
2050
2051 config_host_mak="config-host.mak"
2052
2053 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2054 echo >> $config_host_mak
2055
2056 echo all: >> $config_host_mak
2057 echo "GIT=$git" >> $config_host_mak
2058 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2059 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2060
2061 if test "$debug_tcg" = "yes" ; then
2062   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2063 fi
2064 if test "$mingw32" = "yes" ; then
2065   echo "CONFIG_WIN32=y" >> $config_host_mak
2066   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2067   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2068   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2069 else
2070   echo "CONFIG_POSIX=y" >> $config_host_mak
2071 fi
2072
2073 if test "$linux" = "yes" ; then
2074   echo "CONFIG_LINUX=y" >> $config_host_mak
2075 fi
2076
2077 if test "$darwin" = "yes" ; then
2078   echo "CONFIG_DARWIN=y" >> $config_host_mak
2079 fi
2080
2081 if test "$solaris" = "yes" ; then
2082   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2083 fi
2084 echo "SRC_PATH=$source_path" >> $config_host_mak
2085 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2086
2087 # XXX: suppress that
2088 if [ "$bsd" = "yes" ] ; then
2089   echo "CONFIG_BSD=y" >> $config_host_mak
2090 fi
2091
2092 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2093
2094 if test "$plugins" = "yes" ; then
2095     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2096 fi
2097
2098 if test -n "$gdb_bin"; then
2099     gdb_version=$($gdb_bin --version | head -n 1)
2100     if version_ge ${gdb_version##* } 9.1; then
2101         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2102         gdb_arches=$("$source_path/scripts/probe-gdb-support.py" $gdb_bin)
2103     else
2104         gdb_bin=""
2105     fi
2106 fi
2107
2108 if test "$container" != no; then
2109     echo "ENGINE=$container" >> $config_host_mak
2110     echo "RUNC=$runc" >> $config_host_mak
2111 fi
2112 echo "ROMS=$roms" >> $config_host_mak
2113 echo "MAKE=$make" >> $config_host_mak
2114 echo "PYTHON=$python" >> $config_host_mak
2115 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2116 echo "MESON=$meson" >> $config_host_mak
2117 echo "NINJA=$ninja" >> $config_host_mak
2118 echo "PKG_CONFIG=${pkg_config}" >> $config_host_mak
2119 echo "CC=$cc" >> $config_host_mak
2120 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2121 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2122 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2123 echo "EXESUF=$EXESUF" >> $config_host_mak
2124
2125 # use included Linux headers
2126 if test "$linux" = "yes" ; then
2127   mkdir -p linux-headers
2128   case "$cpu" in
2129   i386|x86_64)
2130     linux_arch=x86
2131     ;;
2132   ppc|ppc64)
2133     linux_arch=powerpc
2134     ;;
2135   s390x)
2136     linux_arch=s390
2137     ;;
2138   aarch64)
2139     linux_arch=arm64
2140     ;;
2141   loongarch*)
2142     linux_arch=loongarch
2143     ;;
2144   mips64)
2145     linux_arch=mips
2146     ;;
2147   *)
2148     # For most CPUs the kernel architecture name and QEMU CPU name match.
2149     linux_arch="$cpu"
2150     ;;
2151   esac
2152     # For non-KVM architectures we will not have asm headers
2153     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2154       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2155     fi
2156 fi
2157
2158 for target in $target_list; do
2159     target_dir="$target"
2160     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2161     mkdir -p "$target_dir"
2162     case $target in
2163         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2164         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2165     esac
2166 done
2167
2168 if test "$default_targets" = "yes"; then
2169   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2170 fi
2171
2172 if test "$ccache_cpp2" = "yes"; then
2173   echo "export CCACHE_CPP2=y" >> $config_host_mak
2174 fi
2175
2176 # tests/tcg configuration
2177 (config_host_mak=tests/tcg/config-host.mak
2178 mkdir -p tests/tcg
2179 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2180 echo "SRC_PATH=$source_path" >> $config_host_mak
2181 echo "HOST_CC=$host_cc" >> $config_host_mak
2182
2183 # versioned checked in the main config_host.mak above
2184 if test -n "$gdb_bin"; then
2185     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2186 fi
2187 if test "$plugins" = "yes" ; then
2188     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2189 fi
2190
2191 tcg_tests_targets=
2192 for target in $target_list; do
2193   arch=${target%%-*}
2194
2195   case $target in
2196     xtensa*-linux-user)
2197       # the toolchain is not complete with headers, only build softmmu tests
2198       continue
2199       ;;
2200     *-softmmu)
2201       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2202       qemu="qemu-system-$arch"
2203       ;;
2204     *-linux-user|*-bsd-user)
2205       qemu="qemu-$arch"
2206       ;;
2207   esac
2208
2209   if probe_target_compiler $target || test -n "$container_image"; then
2210       test -n "$container_image" && build_static=y
2211       mkdir -p "tests/tcg/$target"
2212       config_target_mak=tests/tcg/$target/config-target.mak
2213       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2214       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2215       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2216       echo "TARGET=$target" >> "$config_target_mak"
2217       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2218       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2219       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2220
2221       # will GDB work with these binaries?
2222       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
2223           echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
2224       fi
2225
2226       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2227       tcg_tests_targets="$tcg_tests_targets $target"
2228   fi
2229 done
2230
2231 if test "$tcg" = "enabled"; then
2232     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2233 fi
2234 )
2235
2236 if test "$skip_meson" = no; then
2237   cross="config-meson.cross.new"
2238   meson_quote() {
2239     test $# = 0 && return
2240     echo "'$(echo $* | sed "s/ /','/g")'"
2241   }
2242
2243   echo "# Automatically generated by configure - do not modify" > $cross
2244   echo "[properties]" >> $cross
2245
2246   # unroll any custom device configs
2247   for a in $device_archs; do
2248       eval "c=\$devices_${a}"
2249       echo "${a}-softmmu = '$c'" >> $cross
2250   done
2251
2252   echo "[built-in options]" >> $cross
2253   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2254   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2255   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2256   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2257   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2258   echo "[binaries]" >> $cross
2259   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2260   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2261   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2262   echo "ar = [$(meson_quote $ar)]" >> $cross
2263   echo "nm = [$(meson_quote $nm)]" >> $cross
2264   echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
2265   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2266   if has $sdl2_config; then
2267     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2268   fi
2269   echo "strip = [$(meson_quote $strip)]" >> $cross
2270   echo "widl = [$(meson_quote $widl)]" >> $cross
2271   echo "windres = [$(meson_quote $windres)]" >> $cross
2272   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2273   if test "$cross_compile" = "yes"; then
2274     cross_arg="--cross-file config-meson.cross"
2275     echo "[host_machine]" >> $cross
2276     echo "system = '$targetos'" >> $cross
2277     case "$cpu" in
2278         i386)
2279             echo "cpu_family = 'x86'" >> $cross
2280             ;;
2281         *)
2282             echo "cpu_family = '$cpu'" >> $cross
2283             ;;
2284     esac
2285     echo "cpu = '$cpu'" >> $cross
2286     if test "$bigendian" = "yes" ; then
2287         echo "endian = 'big'" >> $cross
2288     else
2289         echo "endian = 'little'" >> $cross
2290     fi
2291   else
2292     cross_arg="--native-file config-meson.cross"
2293   fi
2294   mv $cross config-meson.cross
2295
2296   rm -rf meson-private meson-info meson-logs
2297
2298   # Prevent meson from automatically downloading wrapped subprojects when missing.
2299   # You can use 'meson subprojects download' before running configure.
2300   meson_option_add "--wrap-mode=nodownload"
2301
2302   # Built-in options
2303   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2304   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2305   test "$static" = yes && meson_option_add -Dprefer_static=true
2306   test "$pie" = no && meson_option_add -Db_pie=false
2307   test "$werror" = yes && meson_option_add -Dwerror=true
2308
2309   # QEMU options
2310   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2311   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
2312   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2313   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2314   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2315   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2316   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2317   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2318   run_meson() {
2319     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2320   }
2321   eval run_meson $meson_options
2322   if test "$?" -ne 0 ; then
2323       error_exit "meson setup failed"
2324   fi
2325 fi
2326
2327 # Save the configure command line for later reuse.
2328 cat <<EOD >config.status
2329 #!/bin/sh
2330 # Generated by configure.
2331 # Run this file to recreate the current configuration.
2332 # Compiler output produced by configure, useful for debugging
2333 # configure, is in config.log if it exists.
2334 EOD
2335
2336 preserve_env() {
2337     envname=$1
2338
2339     eval envval=\$$envname
2340
2341     if test -n "$envval"
2342     then
2343         echo "$envname='$envval'" >> config.status
2344         echo "export $envname" >> config.status
2345     else
2346         echo "unset $envname" >> config.status
2347     fi
2348 }
2349
2350 # Preserve various env variables that influence what
2351 # features/build target configure will detect
2352 preserve_env AR
2353 preserve_env AS
2354 preserve_env CC
2355 preserve_env CFLAGS
2356 preserve_env CXX
2357 preserve_env CXXFLAGS
2358 preserve_env LD
2359 preserve_env LDFLAGS
2360 preserve_env LD_LIBRARY_PATH
2361 preserve_env MAKE
2362 preserve_env NM
2363 preserve_env OBJCFLAGS
2364 preserve_env OBJCOPY
2365 preserve_env PATH
2366 preserve_env PKG_CONFIG
2367 preserve_env PKG_CONFIG_LIBDIR
2368 preserve_env PKG_CONFIG_PATH
2369 preserve_env PYTHON
2370 preserve_env QEMU_GA_MANUFACTURER
2371 preserve_env QEMU_GA_DISTRO
2372 preserve_env QEMU_GA_VERSION
2373 preserve_env SDL2_CONFIG
2374 preserve_env SMBD
2375 preserve_env STRIP
2376 preserve_env WIDL
2377 preserve_env WINDRES
2378 preserve_env WINDMC
2379
2380 printf "exec" >>config.status
2381 for i in "$0" "$@"; do
2382   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2383 done
2384 echo ' "$@"' >>config.status
2385 chmod +x config.status
2386
2387 rm -r "$TMPDIR1"