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.  Unlike autoconf, we assume that unset exists.
   8 unset CLICOLOR_FORCE GREP_OPTIONS BASH_ENV ENV MAIL MAILPATH CDPATH
   9
  10 # Don't allow CCACHE, if present, to use cached results of compile tests!
  11 export CCACHE_RECACHE=yes
  12
  13 # make source path absolute
  14 source_path=$(cd "$(dirname -- "$0")"; pwd)
  15
  16 if test "$PWD" = "$source_path"
  17 then
  18     echo "Using './build' as the directory for build output"
  19
  20     MARKER=build/auto-created-by-configure
  21
  22     if test -e build
  23     then
  24         if test -f $MARKER
  25         then
  26            rm -rf build
  27         else
  28             echo "ERROR: ./build dir already exists and was not previously created by configure"
  29             exit 1
  30         fi
  31     fi
  32
  33     if ! mkdir build || ! touch $MARKER
  34     then
  35         echo "ERROR: Could not create ./build directory. Check the permissions on"
  36         echo "your source directory, or try doing an out-of-tree build."
  37         exit 1
  38     fi
  39
  40     cat > GNUmakefile <<'EOF'
  41 # This file is auto-generated by configure to support in-source tree
  42 # 'make' command invocation
  43
  44 ifeq ($(MAKECMDGOALS),)
  45 recurse: all
  46 endif
  47
  48 .NOTPARALLEL: %
  49 %: force
  50         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  51         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  52         @if test "$(MAKECMDGOALS)" = "distclean" && \
  53             test -e build/auto-created-by-configure ; \
  54         then \
  55             rm -rf build GNUmakefile ; \
  56         fi
  57 force: ;
  58 .PHONY: force
  59 GNUmakefile: ;
  60
  61 EOF
  62     cd build
  63     exec "$source_path/configure" "$@"
  64 fi
  65
  66 # Temporary directory used for files created while
  67 # configure runs. Since it is in the build directory
  68 # we can safely blow away any previous version of it
  69 # (and we need not jump through hoops to try to delete
  70 # it when configure exits.)
  71 TMPDIR1="config-temp"
  72 rm -rf "${TMPDIR1}"
  73 if ! mkdir -p "${TMPDIR1}"; then
  74     echo "ERROR: failed to create temporary directory"
  75     exit 1
  76 fi
  77
  78 TMPB="qemu-conf"
  79 TMPC="${TMPDIR1}/${TMPB}.c"
  80 TMPO="${TMPDIR1}/${TMPB}.o"
  81 TMPE="${TMPDIR1}/${TMPB}.exe"
  82
  83 rm -f config.log
  84
  85 # Print a helpful header at the top of config.log
  86 echo "# QEMU configure log $(date)" >> config.log
  87 printf "# Configured with:" >> config.log
  88 # repeat the invocation to log and stdout for CI
  89 invoke=$(printf " '%s'" "$0" "$@")
  90 test -n "$GITLAB_CI" && echo "configuring with: $invoke"
  91 { echo "$invoke"; echo; echo "#"; } >> config.log
  92
  93 quote_sh() {
  94     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  95 }
  96
  97 error_exit() {
  98     (echo
  99     echo "ERROR: $1"
 100     while test -n "$2"; do
 101         echo "       $2"
 102         shift
 103     done
 104     echo) >&2
 105     exit 1
 106 }
 107
 108 do_compiler() {
 109   # Run the compiler, capturing its output to the log. First argument
 110   # is compiler binary to execute.
 111   compiler="$1"
 112   shift
 113   if test -n "$BASH_VERSION"; then eval '
 114       echo >>config.log "
 115 funcs: ${FUNCNAME[*]}
 116 lines: ${BASH_LINENO[*]}"
 117   '; fi
 118   echo $compiler "$@" >> config.log
 119   $compiler "$@" >> config.log 2>&1 || return $?
 120 }
 121
 122 do_cc() {
 123     do_compiler "$cc" $CPU_CFLAGS "$@"
 124 }
 125
 126 compile_object() {
 127   local_cflags="$1"
 128   do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
 129 }
 130
 131 compile_prog() {
 132   local_cflags="$1"
 133   local_ldflags="$2"
 134   do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
 135       $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
 136 }
 137
 138 # symbolically link $1 to $2.  Portable version of "ln -sf".
 139 symlink() {
 140   rm -rf "$2"
 141   mkdir -p "$(dirname "$2")"
 142   ln -s "$1" "$2"
 143 }
 144
 145 # check whether a command is available to this shell (may be either an
 146 # executable or a builtin)
 147 has() {
 148     type "$1" >/dev/null 2>&1
 149 }
 150
 151 version_ge () {
 152     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 153     local_ver2=$(echo "$2" | tr . ' ')
 154     while true; do
 155         set x $local_ver1
 156         local_first=${2-0}
 157         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 158         shift ${2:+2}
 159         local_ver1=$*
 160         set x $local_ver2
 161         # the second argument finished, the first must be greater or equal
 162         test $# = 1 && return 0
 163         test $local_first -lt $2 && return 1
 164         test $local_first -gt $2 && return 0
 165         shift ${2:+2}
 166         local_ver2=$*
 167     done
 168 }
 169
 170 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 171 then
 172   error_exit "main directory cannot contain spaces nor colons"
 173 fi
 174
 175 # parse CC options first; some compiler tests are used to establish
 176 # some defaults, based on the host environment
 177
 178 # default parameters
 179 container_engine="auto"
 180 cpu=""
 181 cross_compile="no"
 182 cross_prefix=""
 183 host_cc="cc"
 184 EXTRA_CFLAGS=""
 185 EXTRA_CXXFLAGS=""
 186 EXTRA_OBJCFLAGS=""
 187 EXTRA_LDFLAGS=""
 188
 189 # Default value for a variable defining feature "foo".
 190 #  * foo="no"  feature will only be used if --enable-foo arg is given
 191 #  * foo=""    feature will be searched for, and if found, will be used
 192 #              unless --disable-foo is given
 193 #  * foo="yes" this value will only be set by --enable-foo flag.
 194 #              feature will searched for,
 195 #              if not found, configure exits with error
 196 #
 197 # Always add --enable-foo and --disable-foo command line args.
 198 # Distributions want to ensure that several features are compiled in, and it
 199 # is impossible without a --enable-foo that exits if a feature is not found.
 200 default_feature=""
 201
 202 for opt do
 203   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 204   case "$opt" in
 205   --cross-prefix=*) cross_prefix="$optarg"
 206                     cross_compile="yes"
 207   ;;
 208   --cc=*) CC="$optarg"
 209   ;;
 210   --cxx=*) CXX="$optarg"
 211   ;;
 212   --objcc=*) objcc="$optarg"
 213   ;;
 214   --cpu=*) cpu="$optarg"
 215   ;;
 216   --extra-cflags=*)
 217     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 218     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 219     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 220     ;;
 221   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 222   ;;
 223   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 224   ;;
 225   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 226   ;;
 227   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 228   ;;
 229   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 230                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 231   ;;
 232   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 233                 eval "cross_cc_${cc_arch}=\$optarg"
 234   ;;
 235   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 236   ;;
 237   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 238                     eval "cross_prefix_${cc_arch}=\$optarg"
 239   ;;
 240   --without-default-features) default_feature="no"
 241   ;;
 242   esac
 243 done
 244
 245 default_cflags='-O2 -g'
 246 git_submodules_action="update"
 247 docs="auto"
 248 EXESUF=""
 249 system="yes"
 250 linux_user=""
 251 bsd_user=""
 252 plugins="$default_feature"
 253 subdirs=""
 254 ninja=""
 255 python=
 256 download="enabled"
 257 skip_meson=no
 258 use_containers="yes"
 259 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 260 gdb_arches=""
 261
 262 # Don't accept a target_list environment variable.
 263 unset target_list
 264 unset target_list_exclude
 265
 266 # The following Meson options are handled manually (still they
 267 # are included in the automatically generated help message)
 268 # because they automatically enable/disable other options
 269 tcg="auto"
 270 cfi="false"
 271
 272 # Meson has PIE as a boolean rather than enabled/disabled/auto,
 273 # and we also need to check for -static-pie before Meson runs
 274 # which requires knowing whether --static is enabled.
 275 pie=""
 276 static="no"
 277
 278 # Preferred compiler:
 279 #  ${CC} (if set)
 280 #  ${cross_prefix}gcc (if cross-prefix specified)
 281 #  system compiler
 282 if test -z "${CC}${cross_prefix}"; then
 283   cc="cc"
 284 else
 285   cc="${CC-${cross_prefix}gcc}"
 286 fi
 287
 288 if test -z "${CXX}${cross_prefix}"; then
 289   cxx="c++"
 290 else
 291   cxx="${CXX-${cross_prefix}g++}"
 292 fi
 293
 294 # Preferred ObjC compiler:
 295 # $objcc (if set, i.e. via --objcc option)
 296 # ${cross_prefix}clang (if cross-prefix specified)
 297 # clang (if available)
 298 # $cc
 299 if test -z "${objcc}${cross_prefix}"; then
 300   if has clang; then
 301     objcc=clang
 302   else
 303     objcc="$cc"
 304   fi
 305 else
 306   objcc="${objcc-${cross_prefix}clang}"
 307 fi
 308
 309 ar="${AR-${cross_prefix}ar}"
 310 as="${AS-${cross_prefix}as}"
 311 ccas="${CCAS-$cc}"
 312 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 313 ld="${LD-${cross_prefix}ld}"
 314 ranlib="${RANLIB-${cross_prefix}ranlib}"
 315 nm="${NM-${cross_prefix}nm}"
 316 strip="${STRIP-${cross_prefix}strip}"
 317 widl="${WIDL-${cross_prefix}widl}"
 318 windres="${WINDRES-${cross_prefix}windres}"
 319 windmc="${WINDMC-${cross_prefix}windmc}"
 320 pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
 321 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 322
 323 check_define() {
 324 cat > $TMPC <<EOF
 325 #if !defined($1)
 326 #error $1 not defined
 327 #endif
 328 int main(void) { return 0; }
 329 EOF
 330   compile_object
 331 }
 332
 333 write_c_skeleton() {
 334     cat > $TMPC <<EOF
 335 int main(void) { return 0; }
 336 EOF
 337 }
 338
 339 if check_define __linux__ ; then
 340   targetos=linux
 341 elif check_define _WIN32 ; then
 342   targetos=windows
 343 elif check_define __OpenBSD__ ; then
 344   targetos=openbsd
 345 elif check_define __sun__ ; then
 346   targetos=sunos
 347 elif check_define __HAIKU__ ; then
 348   targetos=haiku
 349 elif check_define __FreeBSD__ ; then
 350   targetos=freebsd
 351 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 352   targetos=gnu/kfreebsd
 353 elif check_define __DragonFly__ ; then
 354   targetos=dragonfly
 355 elif check_define __NetBSD__; then
 356   targetos=netbsd
 357 elif check_define __APPLE__; then
 358   targetos=darwin
 359 else
 360   # This is a fatal error, but don't report it yet, because we
 361   # might be going to just print the --help text, or it might
 362   # be the result of a missing compiler.
 363   targetos=bogus
 364 fi
 365
 366 if test ! -z "$cpu" ; then
 367   # command line argument
 368   :
 369 elif check_define __i386__ ; then
 370   cpu="i386"
 371 elif check_define __x86_64__ ; then
 372   if check_define __ILP32__ ; then
 373     cpu="x32"
 374   else
 375     cpu="x86_64"
 376   fi
 377 elif check_define __sparc__ ; then
 378   if check_define __arch64__ ; then
 379     cpu="sparc64"
 380   else
 381     cpu="sparc"
 382   fi
 383 elif check_define _ARCH_PPC ; then
 384   if check_define _ARCH_PPC64 ; then
 385     if check_define _LITTLE_ENDIAN ; then
 386       cpu="ppc64le"
 387     else
 388       cpu="ppc64"
 389     fi
 390   else
 391     cpu="ppc"
 392   fi
 393 elif check_define __mips__ ; then
 394   cpu="mips"
 395 elif check_define __s390__ ; then
 396   if check_define __s390x__ ; then
 397     cpu="s390x"
 398   else
 399     cpu="s390"
 400   fi
 401 elif check_define __riscv ; then
 402   if check_define _LP64 ; then
 403     cpu="riscv64"
 404   else
 405     cpu="riscv32"
 406   fi
 407 elif check_define __arm__ ; then
 408   cpu="arm"
 409 elif check_define __aarch64__ ; then
 410   cpu="aarch64"
 411 elif check_define __loongarch64 ; then
 412   cpu="loongarch64"
 413 else
 414   # Using uname is really broken, but it is just a fallback for architectures
 415   # that are going to use TCI anyway
 416   cpu=$(uname -m)
 417   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 418 fi
 419
 420 # Normalise host CPU name to the values used by Meson cross files and in source
 421 # directories, and set multilib cflags.  The canonicalization isn't really
 422 # necessary, because the architectures that we check for should not hit the
 423 # 'uname -m' case, but better safe than sorry in case --cpu= is used.
 424 #
 425 # Note that this case should only have supported host CPUs, not guests.
 426 # Please keep it sorted and synchronized with meson.build's host_arch.
 427 host_arch=
 428 linux_arch=
 429 case "$cpu" in
 430   aarch64)
 431     host_arch=aarch64
 432     linux_arch=arm64
 433     ;;
 434
 435   armv*b|armv*l|arm)
 436     cpu=arm
 437     host_arch=arm
 438     linux_arch=arm
 439     ;;
 440
 441   i386|i486|i586|i686)
 442     cpu="i386"
 443     host_arch=i386
 444     linux_arch=x86
 445     CPU_CFLAGS="-m32"
 446     ;;
 447
 448   loongarch*)
 449     cpu=loongarch64
 450     host_arch=loongarch64
 451     ;;
 452
 453   mips64*)
 454     cpu=mips64
 455     host_arch=mips
 456     linux_arch=mips
 457     ;;
 458   mips*)
 459     cpu=mips
 460     host_arch=mips
 461     linux_arch=mips
 462     ;;
 463
 464   ppc)
 465     host_arch=ppc
 466     linux_arch=powerpc
 467     CPU_CFLAGS="-m32"
 468     ;;
 469   ppc64)
 470     host_arch=ppc64
 471     linux_arch=powerpc
 472     CPU_CFLAGS="-m64 -mbig-endian"
 473     ;;
 474   ppc64le)
 475     cpu=ppc64
 476     host_arch=ppc64
 477     linux_arch=powerpc
 478     CPU_CFLAGS="-m64 -mlittle-endian"
 479     ;;
 480
 481   riscv32 | riscv64)
 482     host_arch=riscv
 483     linux_arch=riscv
 484     ;;
 485
 486   s390)
 487     linux_arch=s390
 488     CPU_CFLAGS="-m31"
 489     ;;
 490   s390x)
 491     host_arch=s390x
 492     linux_arch=s390
 493     CPU_CFLAGS="-m64"
 494     ;;
 495
 496   sparc|sun4[cdmuv])
 497     cpu=sparc
 498     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
 499     ;;
 500   sparc64)
 501     host_arch=sparc64
 502     CPU_CFLAGS="-m64 -mcpu=ultrasparc"
 503     ;;
 504
 505   x32)
 506     cpu="x86_64"
 507     host_arch=x86_64
 508     linux_arch=x86
 509     CPU_CFLAGS="-mx32"
 510     ;;
 511   x86_64|amd64)
 512     cpu="x86_64"
 513     host_arch=x86_64
 514     linux_arch=x86
 515     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 516     # If we truly care, we should simply detect this case at
 517     # runtime and generate the fallback to serial emulation.
 518     CPU_CFLAGS="-m64 -mcx16"
 519     ;;
 520 esac
 521
 522 if test -n "$host_arch" && {
 523     ! test -d "$source_path/linux-user/include/host/$host_arch" ||
 524     ! test -d "$source_path/common-user/host/$host_arch"; }; then
 525     error_exit "linux-user/include/host/$host_arch does not exist." \
 526        "This is a bug in the configure script, please report it."
 527 fi
 528 if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
 529     error_exit "linux-headers/asm-$linux_arch does not exist." \
 530        "This is a bug in the configure script, please report it."
 531 fi
 532
 533 check_py_version() {
 534     # We require python >= 3.8.
 535     # NB: a True python conditional creates a non-zero return code (Failure)
 536     "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
 537 }
 538
 539 first_python=
 540 if test -z "${PYTHON}"; then
 541     # A bare 'python' is traditionally python 2.x, but some distros
 542     # have it as python 3.x, so check in both places.
 543     for binary in python3 python python3.12 python3.11 \
 544                           python3.10 python3.9 python3.8; do
 545         if has "$binary"; then
 546             python=$(command -v "$binary")
 547             if check_py_version "$python"; then
 548                 # This one is good.
 549                 first_python=
 550                 break
 551             else
 552                 first_python=$python
 553             fi
 554         fi
 555     done
 556 else
 557     # Same as above, but only check the environment variable.
 558     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 559     python=$(command -v "$PYTHON")
 560     if check_py_version "$python"; then
 561         # This one is good.
 562         first_python=
 563     else
 564         first_python=$first_python
 565     fi
 566 fi
 567
 568 # Check for ancillary tools used in testing
 569 genisoimage=
 570 for binary in genisoimage mkisofs
 571 do
 572     if has $binary
 573     then
 574         genisoimage=$(command -v "$binary")
 575         break
 576     fi
 577 done
 578
 579 if test "$targetos" = "windows" ; then
 580   EXESUF=".exe"
 581 fi
 582
 583 meson_option_build_array() {
 584   printf '['
 585   (if test "$targetos" = windows; then
 586     IFS=\;
 587   else
 588     IFS=:
 589   fi
 590   for e in $1; do
 591     printf '"""'
 592     # backslash escape any '\' and '"' characters
 593     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 594     printf '""",'
 595   done)
 596   printf ']\n'
 597 }
 598
 599 . "$source_path/scripts/meson-buildoptions.sh"
 600
 601 meson_options=
 602 meson_option_add() {
 603   local arg
 604   for arg; do
 605     meson_options="$meson_options $(quote_sh "$arg")"
 606   done
 607 }
 608 meson_option_parse() {
 609   meson_options="$meson_options $(_meson_option_parse "$@")"
 610   if test $? -eq 1; then
 611     echo "ERROR: unknown option $1"
 612     echo "Try '$0 --help' for more information"
 613     exit 1
 614   fi
 615 }
 616
 617 meson_add_machine_file() {
 618   if test "$cross_compile" = "yes"; then
 619     meson_option_add --cross-file "$1"
 620   else
 621     meson_option_add --native-file "$1"
 622   fi
 623 }
 624
 625 for opt do
 626   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 627   case "$opt" in
 628   --help|-h) show_help=yes
 629   ;;
 630   --version|-V) exec cat "$source_path/VERSION"
 631   ;;
 632   --cross-prefix=*)
 633   ;;
 634   --cc=*)
 635   ;;
 636   --host-cc=*) host_cc="$optarg"
 637   ;;
 638   --cxx=*)
 639   ;;
 640   --objcc=*)
 641   ;;
 642   --make=*)
 643   ;;
 644   --install=*)
 645   ;;
 646   --python=*) python="$optarg"
 647   ;;
 648   --skip-meson) skip_meson=yes
 649   ;;
 650   --ninja=*) ninja="$optarg"
 651   ;;
 652   --extra-cflags=*)
 653   ;;
 654   --extra-cxxflags=*)
 655   ;;
 656   --extra-objcflags=*)
 657   ;;
 658   --extra-ldflags=*)
 659   ;;
 660   --cross-cc-*)
 661   ;;
 662   --cross-prefix-*)
 663   ;;
 664   --enable-docs) docs=enabled
 665   ;;
 666   --disable-docs) docs=disabled
 667   ;;
 668   --cpu=*)
 669   ;;
 670   --target-list=*) target_list="$optarg"
 671                    if test "$target_list_exclude"; then
 672                        error_exit "Can't mix --target-list with --target-list-exclude"
 673                    fi
 674   ;;
 675   --target-list-exclude=*) target_list_exclude="$optarg"
 676                    if test "$target_list"; then
 677                        error_exit "Can't mix --target-list-exclude with --target-list"
 678                    fi
 679   ;;
 680   --with-default-devices) meson_option_add -Ddefault_devices=true
 681   ;;
 682   --without-default-devices) meson_option_add -Ddefault_devices=false
 683   ;;
 684   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 685   ;;
 686   --with-devices-*) device_arch=${opt#--with-devices-};
 687                     device_arch=${device_arch%%=*}
 688                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 689                     if test -f "$cf"; then
 690                         device_archs="$device_archs $device_arch"
 691                         eval "devices_${device_arch}=\$optarg"
 692                     else
 693                         error_exit "File $cf does not exist"
 694                     fi
 695   ;;
 696   --without-default-features) # processed above
 697   ;;
 698   --static) static="yes"
 699   ;;
 700   --host=*|--build=*|\
 701   --disable-dependency-tracking|\
 702   --sbindir=*|--sharedstatedir=*|\
 703   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 704   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 705     # These switches are silently ignored, for compatibility with
 706     # autoconf-generated configure scripts. This allows QEMU's
 707     # configure to be used by RPM and similar macros that set
 708     # lots of directory switches by default.
 709   ;;
 710   --enable-debug)
 711       # Enable debugging options that aren't excessively noisy
 712       meson_option_parse --enable-debug-tcg ""
 713       meson_option_parse --enable-debug-graph-lock ""
 714       meson_option_parse --enable-debug-mutex ""
 715       meson_option_add -Doptimization=0
 716       default_cflags='-O0 -g'
 717   ;;
 718   --disable-tcg) tcg="disabled"
 719   ;;
 720   --enable-tcg) tcg="enabled"
 721   ;;
 722   --disable-system) system="no"
 723   ;;
 724   --enable-system) system="yes"
 725   ;;
 726   --disable-user)
 727       linux_user="no" ;
 728       bsd_user="no" ;
 729   ;;
 730   --enable-user) ;;
 731   --disable-linux-user) linux_user="no"
 732   ;;
 733   --enable-linux-user) linux_user="yes"
 734   ;;
 735   --disable-bsd-user) bsd_user="no"
 736   ;;
 737   --enable-bsd-user) bsd_user="yes"
 738   ;;
 739   --enable-pie) pie="yes"
 740   ;;
 741   --disable-pie) pie="no"
 742   ;;
 743   --enable-cfi) cfi=true
 744   ;;
 745   --disable-cfi) cfi=false
 746   ;;
 747   --disable-download) download="disabled"; git_submodules_action=validate;
 748   ;;
 749   --enable-download) download="enabled"; git_submodules_action=update;
 750   ;;
 751   --enable-plugins) plugins="yes"
 752   ;;
 753   --disable-plugins) plugins="no"
 754   ;;
 755   --enable-containers) use_containers="yes"
 756   ;;
 757   --disable-containers) use_containers="no"
 758   ;;
 759   --container-engine=*) container_engine="$optarg"
 760   ;;
 761   --gdb=*) gdb_bin="$optarg"
 762   ;;
 763   # everything else has the same name in configure and meson
 764   --*) meson_option_parse "$opt" "$optarg"
 765   ;;
 766   # Pass through -Dxxxx options to meson
 767   -D*) meson_options="$meson_options $opt"
 768   ;;
 769   esac
 770 done
 771
 772 if ! test -e "$source_path/.git"
 773 then
 774     git_submodules_action="validate"
 775 fi
 776
 777 if ! test -f "$source_path/subprojects/keycodemapdb/README" \
 778     && test "$download" = disabled
 779 then
 780     echo
 781     echo "ERROR: missing subprojects"
 782     echo
 783     if test -e "$source_path/.git"; then
 784         echo "--disable-download specified but subprojects were not"
 785         echo 'checked out.  Please invoke "meson subprojects download"'
 786         echo "before configuring QEMU, or remove --disable-download"
 787         echo "from the command line."
 788     else
 789         echo "This is not a GIT checkout but subproject content appears to"
 790         echo "be missing. Do not use 'git archive' or GitHub download links"
 791         echo "to acquire QEMU source archives. Non-GIT builds are only"
 792         echo "supported with source archives linked from:"
 793         echo
 794         echo "  https://www.qemu.org/download/#source"
 795         echo
 796         echo "Developers working with GIT can use scripts/archive-source.sh"
 797         echo "if they need to create valid source archives."
 798     fi
 799     echo
 800     exit 1
 801 fi
 802
 803 default_target_list=""
 804 mak_wilds=""
 805
 806 if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
 807     if [ "$linux_user" != no ]; then
 808         if [ "$targetos" = linux ]; then
 809             linux_user=yes
 810         elif [ "$linux_user" = yes ]; then
 811             error_exit "linux-user not supported on this architecture"
 812         fi
 813         if [ "$linux_user" = "yes" ]; then
 814             mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 815         fi
 816     fi
 817     if [ "$bsd_user" != no ]; then
 818         if [ "$bsd_user" = "" ]; then
 819             test $targetos = freebsd && bsd_user=yes
 820         fi
 821         if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 822             error_exit "bsd-user not supported on this host OS"
 823         fi
 824         if [ "$bsd_user" = "yes" ]; then
 825             mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 826         fi
 827     fi
 828 else
 829     if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
 830         error_exit "user mode emulation not supported on this architecture"
 831     fi
 832 fi
 833 if [ "$system" = "yes" ]; then
 834     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 835 fi
 836
 837 for config in $mak_wilds; do
 838     target="$(basename "$config" .mak)"
 839     if echo "$target_list_exclude" | grep -vq "$target"; then
 840         default_target_list="${default_target_list} $target"
 841     fi
 842 done
 843
 844 if test x"$show_help" = x"yes" ; then
 845 cat << EOF
 846
 847 Usage: configure [options]
 848 Options: [defaults in brackets after descriptions]
 849
 850 Standard options:
 851   --help                   print this message
 852   --target-list=LIST       set target list (default: build all)
 853 $(echo Available targets: $default_target_list | \
 854   fold -s -w 53 | sed -e 's/^/                           /')
 855   --target-list-exclude=LIST exclude a set of targets from the default target-list
 856
 857 Advanced options (experts only):
 858   -Dmesonoptname=val       passthrough option to meson unmodified
 859   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 860   --cc=CC                  use C compiler CC [$cc]
 861   --host-cc=CC             when cross compiling, use C compiler CC for code run
 862                            at build time [$host_cc]
 863   --cxx=CXX                use C++ compiler CXX [$cxx]
 864   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
 865   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
 866   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
 867   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
 868   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
 869   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
 870   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
 871   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
 872   --python=PYTHON          use specified python [$python]
 873   --ninja=NINJA            use specified ninja [$ninja]
 874   --static                 enable static build [$static]
 875   --without-default-features default all --enable-* options to "disabled"
 876   --without-default-devices  do not include any device that is not needed to
 877                            start the emulator (only use if you are including
 878                            desired devices in configs/devices/)
 879   --with-devices-ARCH=NAME override default configs/devices
 880   --enable-debug           enable common debug build options
 881   --cpu=CPU                Build for host CPU [$cpu]
 882   --disable-containers     don't use containers for cross-building
 883   --container-engine=TYPE  which container engine to use [$container_engine]
 884   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
 885 EOF
 886   meson_options_help
 887 cat << EOF
 888   system          all system emulation targets
 889   user            supported user emulation targets
 890   linux-user      all linux usermode emulation targets
 891   bsd-user        all BSD usermode emulation targets
 892   pie             Position Independent Executables
 893
 894 NOTE: The object files are built at the place where configure is launched
 895 EOF
 896 exit 0
 897 fi
 898
 899 # Remove old dependency files to make sure that they get properly regenerated
 900 rm -f ./*/config-devices.mak.d
 901
 902 if test -z "$python"
 903 then
 904     # If first_python is set, there was a binary somewhere even though
 905     # it was not suitable.  Use it for the error message.
 906     if test -n "$first_python"; then
 907         error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
 908             "Use --python=/path/to/python to specify a supported Python."
 909     else
 910         error_exit "Python not found. Use --python=/path/to/python"
 911     fi
 912 fi
 913
 914 if ! check_py_version "$python"; then
 915   error_exit "Cannot use '$python', Python >= 3.8 is required." \
 916              "Use --python=/path/to/python to specify a supported Python." \
 917              "Maybe try:" \
 918              "  openSUSE Leap 15.3+: zypper install python39" \
 919              "  CentOS 8: dnf install python38"
 920 fi
 921
 922 # Resolve PATH
 923 python="$(command -v "$python")"
 924
 925 # Create a Python virtual environment using our configured python.
 926 # The stdout of this script will be the location of a symlink that
 927 # points to the configured Python.
 928 # Entry point scripts for pip, meson, and sphinx are generated if those
 929 # packages are present.
 930
 931 # Defaults assumed for now:
 932 # - venv is cleared if it exists already;
 933 # - venv is allowed to use system packages;
 934 # - all setup can be performed offline;
 935 # - missing packages may be fetched from PyPI,
 936 #   unless --disable-download is passed.
 937 # - pip is not installed into the venv when possible,
 938 #   but ensurepip is called as a fallback when necessary.
 939
 940 echo "python determined to be '$python'"
 941 echo "python version: $($python --version)"
 942
 943 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
 944 if test "$?" -ne 0 ; then
 945     error_exit "python venv creation failed"
 946 fi
 947
 948 # Suppress writing compiled files
 949 python="$python -B"
 950 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
 951
 952 # Finish preparing the virtual environment using vendored .whl files
 953
 954 if $python -c 'import sys; sys.exit(sys.version_info >= (3,11))'; then
 955     $mkvenv ensure --dir "${source_path}/python/wheels" \
 956         'tomli>=1.2.0' || exit 1
 957 fi
 958 $mkvenv ensuregroup --dir "${source_path}/python/wheels" \
 959      ${source_path}/pythondeps.toml meson || exit 1
 960
 961 # At this point, we expect Meson to be installed and available.
 962 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
 963 # We ignore PATH completely here: we want to use the venv's Meson
 964 # *exclusively*.
 965
 966 meson="$(cd pyvenv/bin; pwd)/meson"
 967
 968 # Conditionally ensure Sphinx is installed.
 969
 970 mkvenv_flags=""
 971 if test "$download" = "enabled" -a "$docs" = "enabled" ; then
 972     mkvenv_flags="--online"
 973 fi
 974
 975 if test "$docs" != "disabled" ; then
 976     if ! $mkvenv ensuregroup \
 977          $mkvenv_flags \
 978          ${source_path}/pythondeps.toml docs;
 979     then
 980         if test "$docs" = "enabled" ; then
 981             exit 1
 982         fi
 983         echo "Sphinx not found/usable, disabling docs."
 984         docs=disabled
 985     else
 986         docs=enabled
 987     fi
 988 fi
 989
 990 # Probe for ninja
 991
 992 if test -z "$ninja"; then
 993     for c in ninja ninja-build samu; do
 994         if has $c; then
 995             ninja=$(command -v "$c")
 996             break
 997         fi
 998     done
 999     if test -z "$ninja"; then
1000       error_exit "Cannot find Ninja"
1001     fi
1002 fi
1003
1004 if test "$targetos" = "bogus"; then
1005     # Now that we know that we're not printing the help and that
1006     # the compiler works (so the results of the check_defines we used
1007     # to identify the OS are reliable), if we didn't recognize the
1008     # host OS we should stop now.
1009     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1010 fi
1011
1012 # test for any invalid configuration combinations
1013 if test "$targetos" = "windows"; then
1014   if test "$plugins" = "yes"; then
1015     error_exit "TCG plugins not currently supported on Windows platforms"
1016   fi
1017   plugins="no"
1018 fi
1019 if test "$tcg" = "disabled" ; then
1020   if test "$plugins" = "yes"; then
1021     error_exit "Can't enable plugins on non-TCG builds"
1022   fi
1023   plugins="no"
1024 fi
1025 if test "$static" = "yes" ; then
1026   if test "$plugins" = "yes"; then
1027     error_exit "static and plugins are mutually incompatible"
1028   fi
1029   plugins="no"
1030 fi
1031 if test "$plugins" != "no"; then
1032   plugins=yes
1033   subdirs="$subdirs contrib/plugins"
1034 fi
1035
1036 cat > $TMPC << EOF
1037
1038 #ifdef __linux__
1039 #  define THREAD __thread
1040 #else
1041 #  define THREAD
1042 #endif
1043 static THREAD int tls_var;
1044 int main(void) { return tls_var; }
1045 EOF
1046
1047 if test "$targetos" = windows || test "$targetos" = haiku; then
1048   if test "$pie" = "yes"; then
1049     error_exit "PIE not available due to missing OS support"
1050   fi
1051   pie=no
1052 fi
1053
1054 if test "$pie" != "no"; then
1055   if test "$static" = "yes"; then
1056     pie_ldflags=-static-pie
1057   else
1058     pie_ldflags=-pie
1059   fi
1060   if compile_prog "-Werror -fPIE -DPIE" "$pie_ldflags"; then
1061     pie="yes"
1062   elif test "$pie" = "yes"; then
1063     error_exit "-static-pie not available due to missing toolchain support"
1064   else
1065     echo "Disabling PIE due to missing toolchain support"
1066     pie="no"
1067   fi
1068 fi
1069
1070 ##########################################
1071
1072 if test -z "${target_list+xxx}" ; then
1073     default_targets=yes
1074     for target in $default_target_list; do
1075         target_list="$target_list $target"
1076     done
1077     target_list="${target_list# }"
1078 else
1079     default_targets=no
1080     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1081     for target in $target_list; do
1082         # Check that we recognised the target name; this allows a more
1083         # friendly error message than if we let it fall through.
1084         case " $default_target_list " in
1085             *" $target "*)
1086                 ;;
1087             *)
1088                 error_exit "Unknown target name '$target'"
1089                 ;;
1090         esac
1091     done
1092 fi
1093
1094 if test "$tcg" = "auto"; then
1095   if test -z "$target_list"; then
1096     tcg="disabled"
1097   else
1098     tcg="enabled"
1099   fi
1100 fi
1101
1102 #########################################
1103 # gdb test
1104
1105 if test -n "$gdb_bin"; then
1106     gdb_version=$($gdb_bin --version | head -n 1)
1107     if version_ge ${gdb_version##* } 9.1; then
1108         gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1109     else
1110         gdb_bin=""
1111     fi
1112 fi
1113
1114 ##########################################
1115 # big/little endian test
1116 cat > $TMPC << EOF
1117 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1118 # error LITTLE
1119 #endif
1120 int main(void) { return 0; }
1121 EOF
1122
1123 if ! compile_prog ; then
1124   bigendian="no"
1125 else
1126   cat > $TMPC << EOF
1127 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1128 # error BIG
1129 #endif
1130 int main(void) { return 0; }
1131 EOF
1132
1133   if ! compile_prog ; then
1134     bigendian="yes"
1135   else
1136     echo big/little test failed
1137     exit 1
1138   fi
1139 fi
1140
1141 ##########################################
1142 # functions to probe cross compilers
1143
1144 container="no"
1145 runc=""
1146 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1147     case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1148         *docker) container=docker ;;
1149         podman) container=podman ;;
1150         no) container=no ;;
1151     esac
1152     if test "$container" != "no"; then
1153         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1154         runc=$container
1155     fi
1156 fi
1157
1158 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1159 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1160 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1161 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1162 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1163 : ${cross_prefix_armeb="$cross_prefix_arm"}
1164 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1165 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1166 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1167 : ${cross_prefix_i386="i686-linux-gnu-"}
1168 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1169 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1170 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1171 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1172 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1173 : ${cross_prefix_mips="mips-linux-gnu-"}
1174 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1175 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1176 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1177 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1178 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1179 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1180 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1181 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1182 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1183 : ${cross_prefix_tricore="tricore-"}
1184 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1185
1186 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1187 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1188 : ${cross_cc_armeb="$cross_cc_arm"}
1189 : ${cross_cc_cflags_armeb="-mbig-endian"}
1190 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1191 : ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1192 : ${cross_cc_cflags_i386="-m32"}
1193 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1194 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1195 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1196 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1197 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1198 : ${cross_cc_sparc="$cross_cc_sparc64"}
1199 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1200 : ${cross_cc_cflags_x86_64="-m64"}
1201
1202 compute_target_variable() {
1203   eval "$2="
1204   if eval test -n "\"\${cross_prefix_$1}\""; then
1205     if eval has "\"\${cross_prefix_$1}\$3\""; then
1206       eval "$2=\"\${cross_prefix_$1}\$3\""
1207     fi
1208   fi
1209 }
1210
1211 have_target() {
1212   for i; do
1213     case " $target_list " in
1214       *" $i "*) return 0;;
1215       *) ;;
1216     esac
1217   done
1218   return 1
1219 }
1220
1221 # probe_target_compiler TARGET
1222 #
1223 # Look for a compiler for the given target, either native or cross.
1224 # Set variables target_* if a compiler is found, and container_cross_*
1225 # if a Docker-based cross-compiler image is known for the target.
1226 # Set got_cross_cc to yes/no depending on whether a non-container-based
1227 # compiler was found.
1228 #
1229 # If TARGET is a user-mode emulation target, also set build_static to
1230 # "y" if static linking is possible.
1231 #
1232 probe_target_compiler() {
1233   # reset all output variables
1234   got_cross_cc=no
1235   container_image=
1236   container_hosts=
1237   container_cross_cc=
1238   container_cross_ar=
1239   container_cross_as=
1240   container_cross_ld=
1241   container_cross_nm=
1242   container_cross_objcopy=
1243   container_cross_ranlib=
1244   container_cross_strip=
1245
1246   target_arch=${1%%-*}
1247   case $target_arch in
1248     aarch64) container_hosts="x86_64 aarch64" ;;
1249     alpha) container_hosts=x86_64 ;;
1250     arm) container_hosts="x86_64 aarch64" ;;
1251     cris) container_hosts=x86_64 ;;
1252     hexagon) container_hosts=x86_64 ;;
1253     hppa) container_hosts=x86_64 ;;
1254     i386) container_hosts=x86_64 ;;
1255     loongarch64) container_hosts=x86_64 ;;
1256     m68k) container_hosts=x86_64 ;;
1257     microblaze) container_hosts=x86_64 ;;
1258     mips64el) container_hosts=x86_64 ;;
1259     mips64) container_hosts=x86_64 ;;
1260     mipsel) container_hosts=x86_64 ;;
1261     mips) container_hosts=x86_64 ;;
1262     nios2) container_hosts=x86_64 ;;
1263     ppc) container_hosts=x86_64 ;;
1264     ppc64|ppc64le) container_hosts=x86_64 ;;
1265     riscv64) container_hosts=x86_64 ;;
1266     s390x) container_hosts=x86_64 ;;
1267     sh4) container_hosts=x86_64 ;;
1268     sparc64) container_hosts=x86_64 ;;
1269     tricore) container_hosts=x86_64 ;;
1270     x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1271     xtensa*) container_hosts=x86_64 ;;
1272   esac
1273
1274   for host in $container_hosts; do
1275     test "$container" != no || continue
1276     test "$host" = "$cpu" || continue
1277     case $target_arch in
1278       aarch64)
1279         # We don't have any bigendian build tools so we only use this for AArch64
1280         container_image=debian-arm64-cross
1281         container_cross_prefix=aarch64-linux-gnu-
1282         container_cross_cc=${container_cross_prefix}gcc
1283         ;;
1284       arm)
1285         # We don't have any bigendian build tools so we only use this for ARM
1286         container_image=debian-armhf-cross
1287         container_cross_prefix=arm-linux-gnueabihf-
1288         ;;
1289       cris)
1290         container_image=fedora-cris-cross
1291         container_cross_prefix=cris-linux-gnu-
1292         ;;
1293       hexagon)
1294         container_image=debian-hexagon-cross
1295         container_cross_prefix=hexagon-unknown-linux-musl-
1296         container_cross_cc=${container_cross_prefix}clang
1297         ;;
1298       i386)
1299         container_image=fedora-i386-cross
1300         container_cross_prefix=
1301         ;;
1302       loongarch64)
1303         container_image=debian-loongarch-cross
1304         container_cross_prefix=loongarch64-unknown-linux-gnu-
1305         ;;
1306       microblaze)
1307         container_image=debian-microblaze-cross
1308         container_cross_prefix=microblaze-linux-musl-
1309         ;;
1310       mips64el)
1311         container_image=debian-mips64el-cross
1312         container_cross_prefix=mips64el-linux-gnuabi64-
1313         ;;
1314       mips64)
1315         container_image=debian-mips64-cross
1316         container_cross_prefix=mips64-linux-gnuabi64-
1317         ;;
1318       nios2)
1319         container_image=debian-nios2-cross
1320         container_cross_prefix=nios2-linux-gnu-
1321         ;;
1322       ppc)
1323         container_image=debian-powerpc-test-cross
1324         container_cross_prefix=powerpc-linux-gnu-
1325         container_cross_cc=${container_cross_prefix}gcc
1326         ;;
1327       ppc64|ppc64le)
1328         container_image=debian-powerpc-test-cross
1329         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1330         container_cross_cc=${container_cross_prefix}gcc-10
1331         ;;
1332       tricore)
1333         container_image=debian-tricore-cross
1334         container_cross_prefix=tricore-
1335         ;;
1336       x86_64)
1337         container_image=debian-amd64-cross
1338         container_cross_prefix=x86_64-linux-gnu-
1339         ;;
1340       xtensa*)
1341         container_image=debian-xtensa-cross
1342
1343         # default to the dc232b cpu
1344         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1345         ;;
1346       *)
1347         # Debian and GNU architecture names usually match
1348         container_image=debian-$target_arch-cross
1349         container_cross_prefix=$target_arch-linux-gnu-
1350         ;;
1351     esac
1352     : ${container_cross_cc:=${container_cross_prefix}gcc}
1353     : ${container_cross_ar:=${container_cross_prefix}ar}
1354     : ${container_cross_as:=${container_cross_prefix}as}
1355     : ${container_cross_ld:=${container_cross_prefix}ld}
1356     : ${container_cross_nm:=${container_cross_prefix}nm}
1357     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1358     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1359     : ${container_cross_strip:=${container_cross_prefix}strip}
1360   done
1361
1362   try=cross
1363   case "$target_arch:$cpu" in
1364     aarch64_be:aarch64 | \
1365     armeb:arm | \
1366     i386:x86_64 | \
1367     mips*:mips64 | \
1368     ppc*:ppc64 | \
1369     sparc:sparc64 | \
1370     "$cpu:$cpu")
1371       try='native cross' ;;
1372   esac
1373   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1374   for thistry in $try; do
1375     case $thistry in
1376     native)
1377       target_cc=$cc
1378       target_ccas=$ccas
1379       target_ar=$ar
1380       target_as=$as
1381       target_ld=$ld
1382       target_nm=$nm
1383       target_objcopy=$objcopy
1384       target_ranlib=$ranlib
1385       target_strip=$strip
1386       ;;
1387     cross)
1388       target_cc=
1389       if eval test -n "\"\${cross_cc_$target_arch}\""; then
1390         if eval has "\"\${cross_cc_$target_arch}\""; then
1391           eval "target_cc=\"\${cross_cc_$target_arch}\""
1392         fi
1393       else
1394         compute_target_variable $target_arch target_cc gcc
1395       fi
1396       target_ccas=$target_cc
1397       compute_target_variable $target_arch target_ar ar
1398       compute_target_variable $target_arch target_as as
1399       compute_target_variable $target_arch target_ld ld
1400       compute_target_variable $target_arch target_nm nm
1401       compute_target_variable $target_arch target_objcopy objcopy
1402       compute_target_variable $target_arch target_ranlib ranlib
1403       compute_target_variable $target_arch target_strip strip
1404       ;;
1405     esac
1406
1407     if test -n "$target_cc"; then
1408       case $target_arch in
1409         i386|x86_64)
1410           if $target_cc --version | grep -qi "clang"; then
1411             continue
1412           fi
1413           ;;
1414       esac
1415     elif test -n "$target_as" && test -n "$target_ld"; then
1416       # Special handling for assembler only targets
1417       case $target in
1418         tricore-softmmu)
1419           build_static=
1420           got_cross_cc=yes
1421           break
1422           ;;
1423         *)
1424           continue
1425           ;;
1426       esac
1427     else
1428       continue
1429     fi
1430
1431     write_c_skeleton
1432     case $1 in
1433       *-softmmu)
1434         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1435           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1436           got_cross_cc=yes
1437           break
1438         fi
1439         ;;
1440       *)
1441         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1442           build_static=y
1443           got_cross_cc=yes
1444           break
1445         fi
1446         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1447           build_static=
1448           got_cross_cc=yes
1449           break
1450         fi
1451         ;;
1452     esac
1453   done
1454   if test $got_cross_cc != yes; then
1455     build_static=
1456     target_cc=
1457     target_ccas=
1458     target_ar=
1459     target_as=
1460     target_ld=
1461     target_nm=
1462     target_objcopy=
1463     target_ranlib=
1464     target_strip=
1465   fi
1466   test -n "$target_cc"
1467 }
1468
1469 write_target_makefile() {
1470   echo "EXTRA_CFLAGS=$target_cflags"
1471   if test -z "$target_cc" && test -z "$target_as"; then
1472     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1473     echo "$1: docker-image-$container_image" >> Makefile.prereqs
1474     if test -n "$container_cross_cc"; then
1475       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1476       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1477     fi
1478     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1479     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1480     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1481     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1482     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1483     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1484     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1485   else
1486     if test -n "$target_cc"; then
1487       echo "CC=$target_cc"
1488       echo "CCAS=$target_ccas"
1489     fi
1490     if test -n "$target_ar"; then
1491       echo "AR=$target_ar"
1492     fi
1493     if test -n "$target_as"; then
1494       echo "AS=$target_as"
1495     fi
1496     if test -n "$target_ld"; then
1497       echo "LD=$target_ld"
1498     fi
1499     if test -n "$target_nm"; then
1500       echo "NM=$target_nm"
1501     fi
1502     if test -n "$target_objcopy"; then
1503       echo "OBJCOPY=$target_objcopy"
1504     fi
1505     if test -n "$target_ranlib"; then
1506       echo "RANLIB=$target_ranlib"
1507     fi
1508     if test -n "$target_strip"; then
1509       echo "STRIP=$target_strip"
1510     fi
1511   fi
1512 }
1513
1514 #######################################
1515 # cross-compiled firmware targets
1516
1517 # Set up build tree symlinks that point back into the source tree
1518 # (these can be both files and directories).
1519 # Caution: avoid adding files or directories here using wildcards. This
1520 # will result in problems later if a new file matching the wildcard is
1521 # added to the source tree -- nothing will cause configure to be rerun
1522 # so the build tree will be missing the link back to the new file, and
1523 # tests might fail. Prefer to keep the relevant files in their own
1524 # directory and symlink the directory instead.
1525 LINKS="Makefile"
1526 LINKS="$LINKS docs/config"
1527 LINKS="$LINKS pc-bios/optionrom/Makefile"
1528 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1529 LINKS="$LINKS pc-bios/vof/Makefile"
1530 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1531 LINKS="$LINKS tests/avocado tests/data"
1532 LINKS="$LINKS tests/qemu-iotests/check"
1533 LINKS="$LINKS python"
1534 LINKS="$LINKS contrib/plugins/Makefile "
1535 for f in $LINKS ; do
1536     if [ -e "$source_path/$f" ]; then
1537         symlink "$source_path/$f" "$f"
1538     fi
1539 done
1540
1541 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1542
1543 # Mac OS X ships with a broken assembler
1544 if have_target i386-softmmu x86_64-softmmu && \
1545         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1546         test "$targetos" != "haiku" && \
1547         probe_target_compiler i386-softmmu; then
1548     subdirs="$subdirs pc-bios/optionrom"
1549     config_mak=pc-bios/optionrom/config.mak
1550     echo "# Automatically generated by configure - do not modify" > $config_mak
1551     echo "TOPSRC_DIR=$source_path" >> $config_mak
1552     write_target_makefile >> $config_mak
1553 fi
1554
1555 if have_target ppc-softmmu ppc64-softmmu && \
1556         probe_target_compiler ppc-softmmu; then
1557     subdirs="$subdirs pc-bios/vof"
1558     config_mak=pc-bios/vof/config.mak
1559     echo "# Automatically generated by configure - do not modify" > $config_mak
1560     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1561     write_target_makefile >> $config_mak
1562 fi
1563
1564 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1565 # (which is the lowest architecture level that Clang supports)
1566 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1567     GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1568   write_c_skeleton
1569   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1570   has_z900=$?
1571   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1572     if [ $has_z900 != 0 ]; then
1573       echo "WARNING: Your compiler does not support the z900!"
1574       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1575     fi
1576     subdirs="$subdirs pc-bios/s390-ccw"
1577     config_mak=pc-bios/s390-ccw/config-host.mak
1578     echo "# Automatically generated by configure - do not modify" > $config_mak
1579     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1580     echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1581     write_target_makefile >> $config_mak
1582   fi
1583 fi
1584
1585 #######################################
1586 # generate config-host.mak
1587
1588 config_host_mak="config-host.mak"
1589
1590 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1591 echo >> $config_host_mak
1592
1593 echo all: >> $config_host_mak
1594
1595 echo "SRC_PATH=$source_path" >> $config_host_mak
1596 echo "TARGET_DIRS=$target_list" >> $config_host_mak
1597 echo "GDB=$gdb_bin" >> $config_host_mak
1598 if test "$container" != no; then
1599     echo "RUNC=$runc" >> $config_host_mak
1600 fi
1601 echo "SUBDIRS=$subdirs" >> $config_host_mak
1602 echo "PYTHON=$python" >> $config_host_mak
1603 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1604 echo "MESON=$meson" >> $config_host_mak
1605 echo "NINJA=$ninja" >> $config_host_mak
1606 echo "EXESUF=$EXESUF" >> $config_host_mak
1607
1608 # use included Linux headers for KVM architectures
1609 if test "$targetos" = "linux" && test -n "$linux_arch"; then
1610   symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1611 fi
1612
1613 for target in $target_list; do
1614     target_dir="$target"
1615     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1616     case $target in
1617         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1618         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1619     esac
1620 done
1621
1622 if test "$default_targets" = "yes"; then
1623   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1624 fi
1625
1626 # contrib/plugins configuration
1627 echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1628 echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1629 echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1630 echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1631 echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1632 if test "$targetos" = darwin; then
1633   echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1634 fi
1635
1636 # tests/tcg configuration
1637 (config_host_mak=tests/tcg/config-host.mak
1638 mkdir -p tests/tcg
1639 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1640 echo "SRC_PATH=$source_path" >> $config_host_mak
1641
1642 tcg_tests_targets=
1643 for target in $target_list; do
1644   arch=${target%%-*}
1645
1646   case $target in
1647     xtensa*-linux-user)
1648       # the toolchain is not complete with headers, only build system tests
1649       continue
1650       ;;
1651     *-softmmu)
1652       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1653       qemu="qemu-system-$arch"
1654       ;;
1655     *-linux-user|*-bsd-user)
1656       qemu="qemu-$arch"
1657       ;;
1658   esac
1659
1660   if probe_target_compiler $target || test -n "$container_image"; then
1661       test -n "$container_image" && build_static=y
1662       mkdir -p "tests/tcg/$target"
1663       config_target_mak=tests/tcg/$target/config-target.mak
1664       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1665       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1666       echo "TARGET_NAME=$arch" >> "$config_target_mak"
1667       echo "TARGET=$target" >> "$config_target_mak"
1668       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1669       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1670       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1671
1672       # will GDB work with these binaries?
1673       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1674           echo "GDB=$gdb_bin" >> $config_target_mak
1675       fi
1676
1677       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1678       tcg_tests_targets="$tcg_tests_targets $target"
1679   fi
1680 done
1681
1682 if test "$tcg" = "enabled"; then
1683     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1684 fi
1685 )
1686
1687 if test "$skip_meson" = no; then
1688   cross="config-meson.cross.new"
1689   meson_quote() {
1690     test $# = 0 && return
1691     echo "'$(echo $* | sed "s/ /','/g")'"
1692   }
1693
1694   echo "# Automatically generated by configure - do not modify" > $cross
1695   echo "[properties]" >> $cross
1696
1697   # unroll any custom device configs
1698   for a in $device_archs; do
1699       eval "c=\$devices_${a}"
1700       echo "${a}-softmmu = '$c'" >> $cross
1701   done
1702
1703   echo "[built-in options]" >> $cross
1704   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1705   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1706   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1707   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1708   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1709
1710   # Only enable by default for git builds and on select OSes
1711   echo "# environment defaults, can still be overridden on " >> $cross
1712   echo "# the command line" >> $cross
1713   if test -e "$source_path/.git" && \
1714       { test "$targetos" = linux || test "$targetos" = "windows"; }; then
1715       echo 'werror = true' >> $cross
1716   fi
1717   echo "[project options]" >> $cross
1718   if test "$SMBD" != ''; then
1719     echo "smbd = $(meson_quote "$SMBD")" >> $cross
1720   fi
1721   if test "${QEMU_GA_MANUFACTURER}" != ''; then
1722     echo "qemu_ga_manufacturer = $(meson_quote "${QEMU_GA_MANUFACTURER}")" >> $cross
1723   fi
1724   if test "${QEMU_GA_DISTRO}" != ''; then
1725     echo "qemu_ga_distro = $(meson_quote "${QEMU_GA_DISTRO}")" >> $cross
1726   fi
1727   if test "${QEMU_GA_VERSION}" != ''; then
1728     echo "qemu_ga_version = $(meson_quote "${QEMU_GA_VERSION}")" >> $cross
1729   fi
1730
1731   echo >> $cross
1732   echo "[binaries]" >> $cross
1733   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1734   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1735   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1736   echo "ar = [$(meson_quote $ar)]" >> $cross
1737   echo "nm = [$(meson_quote $nm)]" >> $cross
1738   echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1739   echo "pkg-config = [$(meson_quote $pkg_config)]" >> $cross
1740   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1741   if has $sdl2_config; then
1742     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1743   fi
1744   echo "strip = [$(meson_quote $strip)]" >> $cross
1745   echo "widl = [$(meson_quote $widl)]" >> $cross
1746   echo "windres = [$(meson_quote $windres)]" >> $cross
1747   echo "windmc = [$(meson_quote $windmc)]" >> $cross
1748   if test "$cross_compile" = "yes"; then
1749     echo "[host_machine]" >> $cross
1750     echo "system = '$targetos'" >> $cross
1751     case "$cpu" in
1752         i386)
1753             echo "cpu_family = 'x86'" >> $cross
1754             ;;
1755         *)
1756             echo "cpu_family = '$cpu'" >> $cross
1757             ;;
1758     esac
1759     echo "cpu = '$cpu'" >> $cross
1760     if test "$bigendian" = "yes" ; then
1761         echo "endian = 'big'" >> $cross
1762     else
1763         echo "endian = 'little'" >> $cross
1764     fi
1765
1766     native="config-meson.native.new"
1767     echo "# Automatically generated by configure - do not modify" > $native
1768     echo "[binaries]" >> $native
1769     echo "c = [$(meson_quote $host_cc)]" >> $native
1770     mv $native config-meson.native
1771     meson_option_add --native-file
1772     meson_option_add config-meson.native
1773   fi
1774   mv $cross config-meson.cross
1775   meson_add_machine_file config-meson.cross
1776   if test -f "$source_path/configs/meson/$targetos.txt"; then
1777     meson_add_machine_file $source_path/configs/meson/$targetos.txt
1778   fi
1779
1780   rm -rf meson-private meson-info meson-logs
1781
1782   test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1783   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1784   test "$static" = yes && meson_option_add -Dprefer_static=true
1785   test "$pie" = no && meson_option_add -Db_pie=false
1786
1787   # QEMU options
1788   test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
1789   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1790   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1791   test "$plugins" = yes && meson_option_add "-Dplugins=true"
1792   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1793   run_meson() {
1794     NINJA=$ninja $meson setup "$@" "$PWD" "$source_path"
1795   }
1796   eval run_meson $meson_options
1797   if test "$?" -ne 0 ; then
1798       error_exit "meson setup failed"
1799   fi
1800   echo "$meson" > build.ninja.stamp
1801 else
1802   if test -f meson-private/cmd_line.txt; then
1803     # Adjust old command line options that were removed
1804     # sed -i is not portable
1805     perl -i -ne '
1806       /^sphinx_build/ && next;
1807       print;' meson-private/cmd_line.txt
1808   fi
1809 fi
1810
1811 # Save the configure command line for later reuse.
1812 cat <<EOD >config.status
1813 #!/bin/sh
1814 # Generated by configure.
1815 # Run this file to recreate the current configuration.
1816 # Compiler output produced by configure, useful for debugging
1817 # configure, is in config.log if it exists.
1818 EOD
1819
1820 preserve_env() {
1821     envname=$1
1822
1823     eval envval=\$$envname
1824
1825     if test -n "$envval"
1826     then
1827         echo "$envname='$envval'" >> config.status
1828         echo "export $envname" >> config.status
1829     else
1830         echo "unset $envname" >> config.status
1831     fi
1832 }
1833
1834 # Preserve various env variables that influence what
1835 # features/build target configure will detect
1836 preserve_env AR
1837 preserve_env AS
1838 preserve_env CC
1839 preserve_env CFLAGS
1840 preserve_env CXX
1841 preserve_env CXXFLAGS
1842 preserve_env LD
1843 preserve_env LDFLAGS
1844 preserve_env LD_LIBRARY_PATH
1845 preserve_env NM
1846 preserve_env OBJCFLAGS
1847 preserve_env OBJCOPY
1848 preserve_env PATH
1849 preserve_env PKG_CONFIG
1850 preserve_env PKG_CONFIG_LIBDIR
1851 preserve_env PKG_CONFIG_PATH
1852 preserve_env PYTHON
1853 preserve_env QEMU_GA_MANUFACTURER
1854 preserve_env QEMU_GA_DISTRO
1855 preserve_env QEMU_GA_VERSION
1856 preserve_env SDL2_CONFIG
1857 preserve_env SMBD
1858 preserve_env STRIP
1859 preserve_env WIDL
1860 preserve_env WINDRES
1861 preserve_env WINDMC
1862
1863 printf "exec" >>config.status
1864 for i in "$0" "$@"; do
1865   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1866 done
1867 echo ' "$@"' >>config.status
1868 chmod +x config.status
1869
1870 rm -r "$TMPDIR1"