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 build:
  45         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  46         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  47         @if test "$(MAKECMDGOALS)" = "distclean" && \
  48             test -e build/auto-created-by-configure ; \
  49         then \
  50             rm -rf build GNUmakefile ; \
  51         fi
  52 %: build
  53         @
  54 .PHONY: build
  55 GNUmakefile: ;
  56
  57 EOF
  58     cd build
  59     exec "$source_path/configure" "$@"
  60 fi
  61
  62 # Temporary directory used for files created while
  63 # configure runs. Since it is in the build directory
  64 # we can safely blow away any previous version of it
  65 # (and we need not jump through hoops to try to delete
  66 # it when configure exits.)
  67 TMPDIR1="config-temp"
  68 rm -rf "${TMPDIR1}"
  69 if ! mkdir -p "${TMPDIR1}"; then
  70     echo "ERROR: failed to create temporary directory"
  71     exit 1
  72 fi
  73
  74 TMPB="qemu-conf"
  75 TMPC="${TMPDIR1}/${TMPB}.c"
  76 TMPO="${TMPDIR1}/${TMPB}.o"
  77 TMPE="${TMPDIR1}/${TMPB}.exe"
  78
  79 rm -f config.log
  80
  81 # Print a helpful header at the top of config.log
  82 echo "# QEMU configure log $(date)" >> config.log
  83 printf "# Configured with:" >> config.log
  84 # repeat the invocation to log and stdout for CI
  85 invoke=$(printf " '%s'" "$0" "$@")
  86 test -n "$GITLAB_CI" && echo "configuring with: $invoke"
  87 { echo "$invoke"; echo; echo "#"; } >> config.log
  88
  89 quote_sh() {
  90     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  91 }
  92
  93 error_exit() {
  94     (echo
  95     echo "ERROR: $1"
  96     while test -n "$2"; do
  97         echo "       $2"
  98         shift
  99     done
 100     echo) >&2
 101     exit 1
 102 }
 103
 104 do_compiler() {
 105   # Run the compiler, capturing its output to the log. First argument
 106   # is compiler binary to execute.
 107   compiler="$1"
 108   shift
 109   if test -n "$BASH_VERSION"; then eval '
 110       echo >>config.log "
 111 funcs: ${FUNCNAME[*]}
 112 lines: ${BASH_LINENO[*]}"
 113   '; fi
 114   echo $compiler "$@" >> config.log
 115   $compiler "$@" >> config.log 2>&1 || return $?
 116 }
 117
 118 do_cc() {
 119     do_compiler "$cc" $CPU_CFLAGS "$@"
 120 }
 121
 122 compile_object() {
 123   local_cflags="$1"
 124   do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
 125 }
 126
 127 compile_prog() {
 128   local_cflags="$1"
 129   local_ldflags="$2"
 130   do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
 131       $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
 132 }
 133
 134 # symbolically link $1 to $2.  Portable version of "ln -sf".
 135 symlink() {
 136   rm -rf "$2"
 137   mkdir -p "$(dirname "$2")"
 138   ln -s "$1" "$2"
 139 }
 140
 141 # check whether a command is available to this shell (may be either an
 142 # executable or a builtin)
 143 has() {
 144     type "$1" >/dev/null 2>&1
 145 }
 146
 147 version_ge () {
 148     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 149     local_ver2=$(echo "$2" | tr . ' ')
 150     while true; do
 151         set x $local_ver1
 152         local_first=${2-0}
 153         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 154         shift ${2:+2}
 155         local_ver1=$*
 156         set x $local_ver2
 157         # the second argument finished, the first must be greater or equal
 158         test $# = 1 && return 0
 159         test $local_first -lt $2 && return 1
 160         test $local_first -gt $2 && return 0
 161         shift ${2:+2}
 162         local_ver2=$*
 163     done
 164 }
 165
 166 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 167 then
 168   error_exit "main directory cannot contain spaces nor colons"
 169 fi
 170
 171 # parse CC options first; some compiler tests are used to establish
 172 # some defaults, based on the host environment
 173
 174 # default parameters
 175 container_engine="auto"
 176 cpu=""
 177 cross_compile="no"
 178 cross_prefix=""
 179 host_cc="cc"
 180 EXTRA_CFLAGS=""
 181 EXTRA_CXXFLAGS=""
 182 EXTRA_OBJCFLAGS=""
 183 EXTRA_LDFLAGS=""
 184
 185 # Default value for a variable defining feature "foo".
 186 #  * foo="no"  feature will only be used if --enable-foo arg is given
 187 #  * foo=""    feature will be searched for, and if found, will be used
 188 #              unless --disable-foo is given
 189 #  * foo="yes" this value will only be set by --enable-foo flag.
 190 #              feature will searched for,
 191 #              if not found, configure exits with error
 192 #
 193 # Always add --enable-foo and --disable-foo command line args.
 194 # Distributions want to ensure that several features are compiled in, and it
 195 # is impossible without a --enable-foo that exits if a feature is not found.
 196 default_feature=""
 197
 198 for opt do
 199   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 200   case "$opt" in
 201   --cross-prefix=*) cross_prefix="$optarg"
 202                     cross_compile="yes"
 203   ;;
 204   --cc=*) CC="$optarg"
 205   ;;
 206   --cxx=*) CXX="$optarg"
 207   ;;
 208   --objcc=*) objcc="$optarg"
 209   ;;
 210   --cpu=*) cpu="$optarg"
 211   ;;
 212   --extra-cflags=*)
 213     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 214     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 215     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 216     ;;
 217   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 218   ;;
 219   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 220   ;;
 221   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 222   ;;
 223   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 224   ;;
 225   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 226                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 227   ;;
 228   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 229                 eval "cross_cc_${cc_arch}=\$optarg"
 230   ;;
 231   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 232   ;;
 233   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 234                     eval "cross_prefix_${cc_arch}=\$optarg"
 235   ;;
 236   --without-default-features) default_feature="no"
 237   ;;
 238   esac
 239 done
 240
 241 default_cflags='-O2 -g'
 242 git_submodules_action="update"
 243 docs="auto"
 244 EXESUF=""
 245 system="yes"
 246 linux_user=""
 247 bsd_user=""
 248 plugins="$default_feature"
 249 subdirs=""
 250 ninja=""
 251 python=
 252 download="enabled"
 253 skip_meson=no
 254 use_containers="yes"
 255 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 256 gdb_arches=""
 257
 258 # Don't accept a target_list environment variable.
 259 unset target_list
 260 unset target_list_exclude
 261
 262 # The following Meson options are handled manually (still they
 263 # are included in the automatically generated help message)
 264 # because they automatically enable/disable other options
 265 tcg="auto"
 266 cfi="false"
 267
 268 # Meson has PIE as a boolean rather than enabled/disabled/auto,
 269 # and we also need to check for -static-pie before Meson runs
 270 # which requires knowing whether --static is enabled.
 271 pie=""
 272 static="no"
 273
 274 # Preferred compiler:
 275 #  ${CC} (if set)
 276 #  ${cross_prefix}gcc (if cross-prefix specified)
 277 #  system compiler
 278 if test -z "${CC}${cross_prefix}"; then
 279   cc="cc"
 280 else
 281   cc="${CC-${cross_prefix}gcc}"
 282 fi
 283
 284 if test -z "${CXX}${cross_prefix}"; then
 285   cxx="c++"
 286 else
 287   cxx="${CXX-${cross_prefix}g++}"
 288 fi
 289
 290 # Preferred ObjC compiler:
 291 # $objcc (if set, i.e. via --objcc option)
 292 # ${cross_prefix}clang (if cross-prefix specified)
 293 # clang (if available)
 294 # $cc
 295 if test -z "${objcc}${cross_prefix}"; then
 296   if has clang; then
 297     objcc=clang
 298   else
 299     objcc="$cc"
 300   fi
 301 else
 302   objcc="${objcc-${cross_prefix}clang}"
 303 fi
 304
 305 ar="${AR-${cross_prefix}ar}"
 306 as="${AS-${cross_prefix}as}"
 307 ccas="${CCAS-$cc}"
 308 dlltool="${DLLTOOL-${cross_prefix}dlltool}"
 309 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 310 ld="${LD-${cross_prefix}ld}"
 311 ranlib="${RANLIB-${cross_prefix}ranlib}"
 312 nm="${NM-${cross_prefix}nm}"
 313 strip="${STRIP-${cross_prefix}strip}"
 314 widl="${WIDL-${cross_prefix}widl}"
 315 windres="${WINDRES-${cross_prefix}windres}"
 316 windmc="${WINDMC-${cross_prefix}windmc}"
 317 pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
 318 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 319
 320 check_define() {
 321 rm -f $TMPC
 322 cat > $TMPC <<EOF
 323 #if !defined($1)
 324 #error $1 not defined
 325 #endif
 326 int main(void) { return 0; }
 327 EOF
 328   compile_object
 329 }
 330
 331 write_c_skeleton() {
 332     cat > $TMPC <<EOF
 333 int main(void) { return 0; }
 334 EOF
 335 }
 336
 337 if check_define __linux__ ; then
 338   host_os=linux
 339 elif check_define _WIN32 ; then
 340   host_os=windows
 341 elif check_define __OpenBSD__ ; then
 342   host_os=openbsd
 343 elif check_define __sun__ ; then
 344   host_os=sunos
 345 elif check_define __HAIKU__ ; then
 346   host_os=haiku
 347 elif check_define __FreeBSD__ ; then
 348   host_os=freebsd
 349 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 350   host_os=gnu/kfreebsd
 351 elif check_define __DragonFly__ ; then
 352   host_os=dragonfly
 353 elif check_define __NetBSD__; then
 354   host_os=netbsd
 355 elif check_define __APPLE__; then
 356   host_os=darwin
 357 else
 358   # This is a fatal error, but don't report it yet, because we
 359   # might be going to just print the --help text, or it might
 360   # be the result of a missing compiler.
 361   host_os=bogus
 362 fi
 363
 364 if test ! -z "$cpu" ; then
 365   # command line argument
 366   :
 367 elif check_define __i386__ ; then
 368   cpu="i386"
 369 elif check_define __x86_64__ ; then
 370   if check_define __ILP32__ ; then
 371     cpu="x32"
 372   else
 373     cpu="x86_64"
 374   fi
 375 elif check_define __sparc__ ; then
 376   if check_define __arch64__ ; then
 377     cpu="sparc64"
 378   else
 379     cpu="sparc"
 380   fi
 381 elif check_define _ARCH_PPC ; then
 382   if check_define _ARCH_PPC64 ; then
 383     if check_define _LITTLE_ENDIAN ; then
 384       cpu="ppc64le"
 385     else
 386       cpu="ppc64"
 387     fi
 388   else
 389     cpu="ppc"
 390   fi
 391 elif check_define __mips__ ; then
 392   if check_define __mips64 ; then
 393     cpu="mips64"
 394   else
 395     cpu="mips"
 396   fi
 397 elif check_define __s390__ ; then
 398   if check_define __s390x__ ; then
 399     cpu="s390x"
 400   else
 401     cpu="s390"
 402   fi
 403 elif check_define __riscv ; then
 404   if check_define _LP64 ; then
 405     cpu="riscv64"
 406   else
 407     cpu="riscv32"
 408   fi
 409 elif check_define __arm__ ; then
 410   cpu="arm"
 411 elif check_define __aarch64__ ; then
 412   cpu="aarch64"
 413 elif check_define __loongarch64 ; then
 414   cpu="loongarch64"
 415 else
 416   # Using uname is really broken, but it is just a fallback for architectures
 417   # that are going to use TCI anyway
 418   cpu=$(uname -m)
 419   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 420 fi
 421
 422 # Normalise host CPU name to the values used by Meson cross files and in source
 423 # directories, and set multilib cflags.  The canonicalization isn't really
 424 # necessary, because the architectures that we check for should not hit the
 425 # 'uname -m' case, but better safe than sorry in case --cpu= is used.
 426 #
 427 # Note that this case should only have supported host CPUs, not guests.
 428 # Please keep it sorted and synchronized with meson.build's host_arch.
 429 host_arch=
 430 linux_arch=
 431 case "$cpu" in
 432   aarch64)
 433     host_arch=aarch64
 434     linux_arch=arm64
 435     ;;
 436
 437   armv*b|armv*l|arm)
 438     cpu=arm
 439     host_arch=arm
 440     linux_arch=arm
 441     ;;
 442
 443   i386|i486|i586|i686)
 444     cpu="i386"
 445     host_arch=i386
 446     linux_arch=x86
 447     CPU_CFLAGS="-m32"
 448     ;;
 449
 450   loongarch*)
 451     cpu=loongarch64
 452     host_arch=loongarch64
 453     linux_arch=loongarch
 454     ;;
 455
 456   mips64*)
 457     cpu=mips64
 458     host_arch=mips
 459     linux_arch=mips
 460     ;;
 461   mips*)
 462     cpu=mips
 463     host_arch=mips
 464     linux_arch=mips
 465     ;;
 466
 467   ppc)
 468     host_arch=ppc
 469     linux_arch=powerpc
 470     CPU_CFLAGS="-m32"
 471     ;;
 472   ppc64)
 473     host_arch=ppc64
 474     linux_arch=powerpc
 475     CPU_CFLAGS="-m64 -mbig-endian"
 476     ;;
 477   ppc64le)
 478     cpu=ppc64
 479     host_arch=ppc64
 480     linux_arch=powerpc
 481     CPU_CFLAGS="-m64 -mlittle-endian"
 482     ;;
 483
 484   riscv32 | riscv64)
 485     host_arch=riscv
 486     linux_arch=riscv
 487     ;;
 488
 489   s390)
 490     linux_arch=s390
 491     CPU_CFLAGS="-m31"
 492     ;;
 493   s390x)
 494     host_arch=s390x
 495     linux_arch=s390
 496     CPU_CFLAGS="-m64"
 497     ;;
 498
 499   sparc|sun4[cdmuv])
 500     cpu=sparc
 501     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
 502     ;;
 503   sparc64)
 504     host_arch=sparc64
 505     CPU_CFLAGS="-m64 -mcpu=ultrasparc"
 506     ;;
 507
 508   x32)
 509     cpu="x86_64"
 510     host_arch=x86_64
 511     linux_arch=x86
 512     CPU_CFLAGS="-mx32"
 513     ;;
 514   x86_64|amd64)
 515     cpu="x86_64"
 516     host_arch=x86_64
 517     linux_arch=x86
 518     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 519     # If we truly care, we should simply detect this case at
 520     # runtime and generate the fallback to serial emulation.
 521     CPU_CFLAGS="-m64 -mcx16"
 522     ;;
 523 esac
 524
 525 if test -n "$host_arch" && {
 526     ! test -d "$source_path/linux-user/include/host/$host_arch" ||
 527     ! test -d "$source_path/common-user/host/$host_arch"; }; then
 528     error_exit "linux-user/include/host/$host_arch does not exist." \
 529        "This is a bug in the configure script, please report it."
 530 fi
 531 if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
 532     error_exit "linux-headers/asm-$linux_arch does not exist." \
 533        "This is a bug in the configure script, please report it."
 534 fi
 535
 536 check_py_version() {
 537     # We require python >= 3.8.
 538     # NB: a True python conditional creates a non-zero return code (Failure)
 539     "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
 540 }
 541
 542 first_python=
 543 if test -z "${PYTHON}"; then
 544     # A bare 'python' is traditionally python 2.x, but some distros
 545     # have it as python 3.x, so check in both places.
 546     for binary in python3 python python3.12 python3.11 \
 547                           python3.10 python3.9 python3.8; do
 548         if has "$binary"; then
 549             python=$(command -v "$binary")
 550             if check_py_version "$python"; then
 551                 # This one is good.
 552                 first_python=
 553                 break
 554             else
 555                 first_python=$python
 556             fi
 557         fi
 558     done
 559 else
 560     # Same as above, but only check the environment variable.
 561     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 562     python=$(command -v "$PYTHON")
 563     if check_py_version "$python"; then
 564         # This one is good.
 565         first_python=
 566     else
 567         first_python=$first_python
 568     fi
 569 fi
 570
 571 # Check for ancillary tools used in testing
 572 genisoimage=
 573 for binary in genisoimage mkisofs
 574 do
 575     if has $binary
 576     then
 577         genisoimage=$(command -v "$binary")
 578         break
 579     fi
 580 done
 581
 582 if test "$host_os" = "windows" ; then
 583   EXESUF=".exe"
 584 fi
 585
 586 meson_option_build_array() {
 587   printf '['
 588   (if test "$host_os" = windows; then
 589     IFS=\;
 590   else
 591     IFS=:
 592   fi
 593   for e in $1; do
 594     printf '"""'
 595     # backslash escape any '\' and '"' characters
 596     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 597     printf '""",'
 598   done)
 599   printf ']\n'
 600 }
 601
 602 . "$source_path/scripts/meson-buildoptions.sh"
 603
 604 meson_options=
 605 meson_option_add() {
 606   local arg
 607   for arg; do
 608     meson_options="$meson_options $(quote_sh "$arg")"
 609   done
 610 }
 611 meson_option_parse() {
 612   meson_options="$meson_options $(_meson_option_parse "$@")"
 613   if test $? -eq 1; then
 614     echo "ERROR: unknown option $1"
 615     echo "Try '$0 --help' for more information"
 616     exit 1
 617   fi
 618 }
 619
 620 meson_add_machine_file() {
 621   if test "$cross_compile" = "yes"; then
 622     meson_option_add --cross-file "$1"
 623   else
 624     meson_option_add --native-file "$1"
 625   fi
 626 }
 627
 628 for opt do
 629   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 630   case "$opt" in
 631   --help|-h) show_help=yes
 632   ;;
 633   --version|-V) exec cat "$source_path/VERSION"
 634   ;;
 635   --cross-prefix=*)
 636   ;;
 637   --cc=*)
 638   ;;
 639   --host-cc=*) host_cc="$optarg"
 640   ;;
 641   --cxx=*)
 642   ;;
 643   --objcc=*)
 644   ;;
 645   --make=*)
 646   ;;
 647   --install=*)
 648   ;;
 649   --python=*) python="$optarg"
 650   ;;
 651   --skip-meson) skip_meson=yes
 652   ;;
 653   --ninja=*) ninja="$optarg"
 654   ;;
 655   --extra-cflags=*)
 656   ;;
 657   --extra-cxxflags=*)
 658   ;;
 659   --extra-objcflags=*)
 660   ;;
 661   --extra-ldflags=*)
 662   ;;
 663   --cross-cc-*)
 664   ;;
 665   --cross-prefix-*)
 666   ;;
 667   --enable-docs) docs=enabled
 668   ;;
 669   --disable-docs) docs=disabled
 670   ;;
 671   --cpu=*)
 672   ;;
 673   --target-list=*) target_list="$optarg"
 674                    if test "$target_list_exclude"; then
 675                        error_exit "Can't mix --target-list with --target-list-exclude"
 676                    fi
 677   ;;
 678   --target-list-exclude=*) target_list_exclude="$optarg"
 679                    if test "$target_list"; then
 680                        error_exit "Can't mix --target-list-exclude with --target-list"
 681                    fi
 682   ;;
 683   --with-default-devices) meson_option_add -Ddefault_devices=true
 684   ;;
 685   --without-default-devices) meson_option_add -Ddefault_devices=false
 686   ;;
 687   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 688   ;;
 689   --with-devices-*) device_arch=${opt#--with-devices-};
 690                     device_arch=${device_arch%%=*}
 691                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 692                     if test -f "$cf"; then
 693                         device_archs="$device_archs $device_arch"
 694                         eval "devices_${device_arch}=\$optarg"
 695                     else
 696                         error_exit "File $cf does not exist"
 697                     fi
 698   ;;
 699   --without-default-features) # processed above
 700   ;;
 701   --static) static="yes"
 702   ;;
 703   --host=*|--build=*|\
 704   --disable-dependency-tracking|\
 705   --sbindir=*|--sharedstatedir=*|\
 706   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 707   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 708     # These switches are silently ignored, for compatibility with
 709     # autoconf-generated configure scripts. This allows QEMU's
 710     # configure to be used by RPM and similar macros that set
 711     # lots of directory switches by default.
 712   ;;
 713   --enable-debug)
 714       # Enable debugging options that aren't excessively noisy
 715       meson_option_parse --enable-debug-tcg ""
 716       meson_option_parse --enable-debug-graph-lock ""
 717       meson_option_parse --enable-debug-mutex ""
 718       meson_option_add -Doptimization=0
 719       default_cflags='-O0 -g'
 720   ;;
 721   --disable-tcg) tcg="disabled"
 722   ;;
 723   --enable-tcg) tcg="enabled"
 724   ;;
 725   --disable-system) system="no"
 726   ;;
 727   --enable-system) system="yes"
 728   ;;
 729   --disable-user)
 730       linux_user="no" ;
 731       bsd_user="no" ;
 732   ;;
 733   --enable-user) ;;
 734   --disable-linux-user) linux_user="no"
 735   ;;
 736   --enable-linux-user) linux_user="yes"
 737   ;;
 738   --disable-bsd-user) bsd_user="no"
 739   ;;
 740   --enable-bsd-user) bsd_user="yes"
 741   ;;
 742   --enable-pie) pie="yes"
 743   ;;
 744   --disable-pie) pie="no"
 745   ;;
 746   --enable-cfi) cfi=true
 747   ;;
 748   --disable-cfi) cfi=false
 749   ;;
 750   --disable-download) download="disabled"; git_submodules_action=validate;
 751   ;;
 752   --enable-download) download="enabled"; git_submodules_action=update;
 753   ;;
 754   --enable-plugins) plugins="yes"
 755   ;;
 756   --disable-plugins) plugins="no"
 757   ;;
 758   --enable-containers) use_containers="yes"
 759   ;;
 760   --disable-containers) use_containers="no"
 761   ;;
 762   --container-engine=*) container_engine="$optarg"
 763   ;;
 764   --gdb=*) gdb_bin="$optarg"
 765   ;;
 766   # everything else has the same name in configure and meson
 767   --*) meson_option_parse "$opt" "$optarg"
 768   ;;
 769   # Pass through -Dxxxx options to meson
 770   -D*) meson_options="$meson_options $opt"
 771   ;;
 772   esac
 773 done
 774
 775 if ! test -e "$source_path/.git"
 776 then
 777     git_submodules_action="validate"
 778 fi
 779
 780 if ! test -f "$source_path/subprojects/keycodemapdb/README" \
 781     && test "$download" = disabled
 782 then
 783     echo
 784     echo "ERROR: missing subprojects"
 785     echo
 786     if test -e "$source_path/.git"; then
 787         echo "--disable-download specified but subprojects were not"
 788         echo 'checked out.  Please invoke "meson subprojects download"'
 789         echo "before configuring QEMU, or remove --disable-download"
 790         echo "from the command line."
 791     else
 792         echo "This is not a GIT checkout but subproject content appears to"
 793         echo "be missing. Do not use 'git archive' or GitHub download links"
 794         echo "to acquire QEMU source archives. Non-GIT builds are only"
 795         echo "supported with source archives linked from:"
 796         echo
 797         echo "  https://www.qemu.org/download/#source"
 798         echo
 799         echo "Developers working with GIT can use scripts/archive-source.sh"
 800         echo "if they need to create valid source archives."
 801     fi
 802     echo
 803     exit 1
 804 fi
 805
 806 default_target_list=""
 807 mak_wilds=""
 808
 809 if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
 810     if [ "$linux_user" != no ]; then
 811         if [ "$host_os" = linux ]; then
 812             linux_user=yes
 813         elif [ "$linux_user" = yes ]; then
 814             error_exit "linux-user not supported on this architecture"
 815         fi
 816         if [ "$linux_user" = "yes" ]; then
 817             mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 818         fi
 819     fi
 820     if [ "$bsd_user" != no ]; then
 821         if [ "$bsd_user" = "" ]; then
 822             test $host_os = freebsd && bsd_user=yes
 823         fi
 824         if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$host_os" ]; then
 825             error_exit "bsd-user not supported on this host OS"
 826         fi
 827         if [ "$bsd_user" = "yes" ]; then
 828             mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 829         fi
 830     fi
 831 else
 832     if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
 833         error_exit "user mode emulation not supported on this architecture"
 834     fi
 835 fi
 836 if [ "$system" = "yes" ]; then
 837     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 838 fi
 839
 840 for config in $mak_wilds; do
 841     target="$(basename "$config" .mak)"
 842     if echo "$target_list_exclude" | grep -vq "$target"; then
 843         default_target_list="${default_target_list} $target"
 844     fi
 845 done
 846
 847 if test x"$show_help" = x"yes" ; then
 848 cat << EOF
 849
 850 Usage: configure [options]
 851 Options: [defaults in brackets after descriptions]
 852
 853 Standard options:
 854   --help                   print this message
 855   --target-list=LIST       set target list (default: build all)
 856 $(echo Available targets: $default_target_list | \
 857   fold -s -w 53 | sed -e 's/^/                           /')
 858   --target-list-exclude=LIST exclude a set of targets from the default target-list
 859
 860 Advanced options (experts only):
 861   -Dmesonoptname=val       passthrough option to meson unmodified
 862   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 863   --cc=CC                  use C compiler CC [$cc]
 864   --host-cc=CC             when cross compiling, use C compiler CC for code run
 865                            at build time [$host_cc]
 866   --cxx=CXX                use C++ compiler CXX [$cxx]
 867   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
 868   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
 869   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
 870   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
 871   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
 872   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
 873   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
 874   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
 875   --python=PYTHON          use specified python [$python]
 876   --ninja=NINJA            use specified ninja [$ninja]
 877   --static                 enable static build [$static]
 878   --without-default-features default all --enable-* options to "disabled"
 879   --without-default-devices  do not include any device that is not needed to
 880                            start the emulator (only use if you are including
 881                            desired devices in configs/devices/)
 882   --with-devices-ARCH=NAME override default configs/devices
 883   --enable-debug           enable common debug build options
 884   --cpu=CPU                Build for host CPU [$cpu]
 885   --disable-containers     don't use containers for cross-building
 886   --container-engine=TYPE  which container engine to use [$container_engine]
 887   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
 888 EOF
 889   meson_options_help
 890 cat << EOF
 891   system          all system emulation targets
 892   user            supported user emulation targets
 893   linux-user      all linux usermode emulation targets
 894   bsd-user        all BSD usermode emulation targets
 895   pie             Position Independent Executables
 896
 897 NOTE: The object files are built at the place where configure is launched
 898 EOF
 899 exit 0
 900 fi
 901
 902 # Remove old dependency files to make sure that they get properly regenerated
 903 rm -f ./*/config-devices.mak.d
 904
 905 if test -z "$python"
 906 then
 907     # If first_python is set, there was a binary somewhere even though
 908     # it was not suitable.  Use it for the error message.
 909     if test -n "$first_python"; then
 910         error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
 911             "Use --python=/path/to/python to specify a supported Python."
 912     else
 913         error_exit "Python not found. Use --python=/path/to/python"
 914     fi
 915 fi
 916
 917 if ! check_py_version "$python"; then
 918   error_exit "Cannot use '$python', Python >= 3.8 is required." \
 919              "Use --python=/path/to/python to specify a supported Python." \
 920              "Maybe try:" \
 921              "  openSUSE Leap 15.3+: zypper install python39" \
 922              "  CentOS 8: dnf install python38"
 923 fi
 924
 925 # Resolve PATH
 926 python="$(command -v "$python")"
 927
 928 # Create a Python virtual environment using our configured python.
 929 # The stdout of this script will be the location of a symlink that
 930 # points to the configured Python.
 931 # Entry point scripts for pip, meson, and sphinx are generated if those
 932 # packages are present.
 933
 934 # Defaults assumed for now:
 935 # - venv is cleared if it exists already;
 936 # - venv is allowed to use system packages;
 937 # - all setup can be performed offline;
 938 # - missing packages may be fetched from PyPI,
 939 #   unless --disable-download is passed.
 940 # - pip is not installed into the venv when possible,
 941 #   but ensurepip is called as a fallback when necessary.
 942
 943 echo "python determined to be '$python'"
 944 echo "python version: $($python --version)"
 945
 946 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
 947 if test "$?" -ne 0 ; then
 948     error_exit "python venv creation failed"
 949 fi
 950
 951 # Suppress writing compiled files
 952 python="$python -B"
 953 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
 954
 955 # Finish preparing the virtual environment using vendored .whl files
 956
 957 if $python -c 'import sys; sys.exit(sys.version_info >= (3,11))'; then
 958     $mkvenv ensure --dir "${source_path}/python/wheels" \
 959         'tomli>=1.2.0' || exit 1
 960 fi
 961 $mkvenv ensuregroup --dir "${source_path}/python/wheels" \
 962      ${source_path}/pythondeps.toml meson || exit 1
 963
 964 # At this point, we expect Meson to be installed and available.
 965 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
 966 # We ignore PATH completely here: we want to use the venv's Meson
 967 # *exclusively*.
 968
 969 meson="$(cd pyvenv/bin; pwd)/meson"
 970
 971 # Conditionally ensure Sphinx is installed.
 972
 973 mkvenv_online_flag=""
 974 if test "$download" = "enabled" ; then
 975     mkvenv_online_flag=" --online"
 976 fi
 977
 978 if test "$docs" != "disabled" ; then
 979     if ! $mkvenv ensuregroup \
 980          $(test "$docs" = "enabled" && echo "$mkvenv_online_flag") \
 981          ${source_path}/pythondeps.toml docs;
 982     then
 983         if test "$docs" = "enabled" ; then
 984             exit 1
 985         fi
 986         echo "Sphinx not found/usable, disabling docs."
 987         docs=disabled
 988     else
 989         docs=enabled
 990     fi
 991 fi
 992
 993 # Probe for ninja
 994
 995 if test -z "$ninja"; then
 996     for c in ninja ninja-build samu; do
 997         if has $c; then
 998             ninja=$(command -v "$c")
 999             break
1000         fi
1001     done
1002     if test -z "$ninja"; then
1003       error_exit "Cannot find Ninja"
1004     fi
1005 fi
1006
1007 if test "$host_os" = "bogus"; then
1008     # Now that we know that we're not printing the help and that
1009     # the compiler works (so the results of the check_defines we used
1010     # to identify the OS are reliable), if we didn't recognize the
1011     # host OS we should stop now.
1012     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1013 fi
1014
1015 # test for any invalid configuration combinations
1016 if test "$host_os" = "windows" && ! has "$dlltool"; then
1017   if test "$plugins" = "yes"; then
1018     error_exit "TCG plugins requires dlltool to build on Windows platforms"
1019   fi
1020   plugins="no"
1021 fi
1022 if test "$tcg" = "disabled" ; then
1023   if test "$plugins" = "yes"; then
1024     error_exit "Can't enable plugins on non-TCG builds"
1025   fi
1026   plugins="no"
1027 fi
1028 if test "$static" = "yes" ; then
1029   if test "$plugins" = "yes"; then
1030     error_exit "static and plugins are mutually incompatible"
1031   fi
1032   plugins="no"
1033 fi
1034 if test "$plugins" != "no"; then
1035   plugins=yes
1036   subdirs="$subdirs contrib/plugins"
1037 fi
1038
1039 cat > $TMPC << EOF
1040
1041 #ifdef __linux__
1042 #  define THREAD __thread
1043 #else
1044 #  define THREAD
1045 #endif
1046 static THREAD int tls_var;
1047 int main(void) { return tls_var; }
1048 EOF
1049
1050 if test "$host_os" = windows || test "$host_os" = haiku; then
1051   if test "$pie" = "yes"; then
1052     error_exit "PIE not available due to missing OS support"
1053   fi
1054   pie=no
1055 fi
1056
1057 if test "$pie" != "no"; then
1058   if test "$static" = "yes"; then
1059     pie_ldflags=-static-pie
1060   else
1061     pie_ldflags=-pie
1062   fi
1063   if compile_prog "-Werror -fPIE -DPIE" "$pie_ldflags"; then
1064     pie="yes"
1065   elif test "$pie" = "yes"; then
1066     error_exit "-static-pie not available due to missing toolchain support"
1067   else
1068     echo "Disabling PIE due to missing toolchain support"
1069     pie="no"
1070   fi
1071 fi
1072
1073 ##########################################
1074
1075 if test -z "${target_list+xxx}" ; then
1076     default_targets=yes
1077     for target in $default_target_list; do
1078         target_list="$target_list $target"
1079     done
1080     target_list="${target_list# }"
1081 else
1082     default_targets=no
1083     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1084     for target in $target_list; do
1085         # Check that we recognised the target name; this allows a more
1086         # friendly error message than if we let it fall through.
1087         case " $default_target_list " in
1088             *" $target "*)
1089                 ;;
1090             *)
1091                 error_exit "Unknown target name '$target'"
1092                 ;;
1093         esac
1094     done
1095 fi
1096
1097 if test "$tcg" = "auto"; then
1098   if test -z "$target_list"; then
1099     tcg="disabled"
1100   else
1101     tcg="enabled"
1102   fi
1103 fi
1104
1105 #########################################
1106 # gdb test
1107
1108 if test -n "$gdb_bin"; then
1109     gdb_version=$($gdb_bin --version | head -n 1)
1110     if version_ge ${gdb_version##* } 9.1; then
1111         gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1112     else
1113         gdb_bin=""
1114     fi
1115 fi
1116
1117 ##########################################
1118 # big/little endian test
1119 cat > $TMPC << EOF
1120 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1121 # error LITTLE
1122 #endif
1123 int main(void) { return 0; }
1124 EOF
1125
1126 if ! compile_prog ; then
1127   bigendian="no"
1128 else
1129   cat > $TMPC << EOF
1130 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1131 # error BIG
1132 #endif
1133 int main(void) { return 0; }
1134 EOF
1135
1136   if ! compile_prog ; then
1137     bigendian="yes"
1138   else
1139     echo big/little test failed
1140     exit 1
1141   fi
1142 fi
1143
1144 ##########################################
1145 # functions to probe cross compilers
1146
1147 container="no"
1148 runc=""
1149 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1150     case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1151         *docker) container=docker ;;
1152         podman) container=podman ;;
1153         no) container=no ;;
1154     esac
1155     if test "$container" != "no"; then
1156         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1157         runc=$container
1158     fi
1159 fi
1160
1161 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1162 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1163 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1164 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1165 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1166 : ${cross_prefix_armeb="$cross_prefix_arm"}
1167 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1168 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1169 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1170 : ${cross_prefix_i386="i686-linux-gnu-"}
1171 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1172 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1173 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1174 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1175 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1176 : ${cross_prefix_mips="mips-linux-gnu-"}
1177 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1178 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1179 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1180 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1181 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1182 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1183 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1184 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1185 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1186 : ${cross_prefix_tricore="tricore-"}
1187 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1188
1189 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1190 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1191 : ${cross_cc_armeb="$cross_cc_arm"}
1192 : ${cross_cc_cflags_armeb="-mbig-endian"}
1193 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1194 : ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1195 : ${cross_cc_cflags_i386="-m32"}
1196 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1197 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1198 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1199 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1200 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1201 : ${cross_cc_sparc="$cross_cc_sparc64"}
1202 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1203 : ${cross_cc_cflags_x86_64="-m64"}
1204
1205 compute_target_variable() {
1206   eval "$2="
1207   if eval test -n "\"\${cross_prefix_$1}\""; then
1208     if eval has "\"\${cross_prefix_$1}\$3\""; then
1209       eval "$2=\"\${cross_prefix_$1}\$3\""
1210     fi
1211   fi
1212 }
1213
1214 have_target() {
1215   for i; do
1216     case " $target_list " in
1217       *" $i "*) return 0;;
1218       *) ;;
1219     esac
1220   done
1221   return 1
1222 }
1223
1224 # probe_target_compiler TARGET
1225 #
1226 # Look for a compiler for the given target, either native or cross.
1227 # Set variables target_* if a compiler is found, and container_cross_*
1228 # if a Docker-based cross-compiler image is known for the target.
1229 # Set got_cross_cc to yes/no depending on whether a non-container-based
1230 # compiler was found.
1231 #
1232 # If TARGET is a user-mode emulation target, also set build_static to
1233 # "y" if static linking is possible.
1234 #
1235 probe_target_compiler() {
1236   # reset all output variables
1237   got_cross_cc=no
1238   container_image=
1239   container_hosts=
1240   container_cross_prefix=
1241   container_cross_cc=
1242   container_cross_ar=
1243   container_cross_as=
1244   container_cross_ld=
1245   container_cross_nm=
1246   container_cross_objcopy=
1247   container_cross_ranlib=
1248   container_cross_strip=
1249
1250   target_arch=${1%%-*}
1251   case $target_arch in
1252     aarch64) container_hosts="x86_64 aarch64" ;;
1253     alpha) container_hosts=x86_64 ;;
1254     arm) container_hosts="x86_64 aarch64" ;;
1255     cris) container_hosts=x86_64 ;;
1256     hexagon) container_hosts=x86_64 ;;
1257     hppa) container_hosts=x86_64 ;;
1258     i386) container_hosts=x86_64 ;;
1259     loongarch64) container_hosts=x86_64 ;;
1260     m68k) container_hosts=x86_64 ;;
1261     microblaze) container_hosts=x86_64 ;;
1262     mips64el) container_hosts=x86_64 ;;
1263     mips64) container_hosts=x86_64 ;;
1264     mipsel) container_hosts=x86_64 ;;
1265     mips) container_hosts=x86_64 ;;
1266     nios2) container_hosts=x86_64 ;;
1267     ppc) container_hosts=x86_64 ;;
1268     ppc64|ppc64le) container_hosts=x86_64 ;;
1269     riscv64) container_hosts=x86_64 ;;
1270     s390x) container_hosts=x86_64 ;;
1271     sh4) container_hosts=x86_64 ;;
1272     sparc64) container_hosts=x86_64 ;;
1273     tricore) container_hosts=x86_64 ;;
1274     x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1275     xtensa*) container_hosts=x86_64 ;;
1276   esac
1277
1278   for host in $container_hosts; do
1279     test "$container" != no || continue
1280     test "$host" = "$cpu" || continue
1281     case $target_arch in
1282       # debian-all-test-cross architectures
1283
1284       hppa|m68k|mips|riscv64|sparc64)
1285         container_image=debian-all-test-cross
1286         ;;
1287       mips64)
1288         container_image=debian-all-test-cross
1289         container_cross_prefix=mips64-linux-gnuabi64-
1290         ;;
1291       ppc|ppc64|ppc64le)
1292         container_image=debian-all-test-cross
1293         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1294         ;;
1295
1296       # debian-legacy-test-cross architectures (need Debian 11)
1297       # - libc6.1-dev-alpha-cross: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054412
1298       # - sh4-linux-user: binaries don't run with bookworm compiler
1299
1300       alpha|sh4)
1301         container_image=debian-legacy-test-cross
1302         ;;
1303
1304       # architectures with individual containers
1305
1306       aarch64)
1307         # We don't have any bigendian build tools so we only use this for AArch64
1308         container_image=debian-arm64-cross
1309         ;;
1310       arm)
1311         # We don't have any bigendian build tools so we only use this for ARM
1312         container_image=debian-armhf-cross
1313         container_cross_prefix=arm-linux-gnueabihf-
1314         ;;
1315       cris)
1316         container_image=fedora-cris-cross
1317         ;;
1318       hexagon)
1319         container_cross_prefix=hexagon-unknown-linux-musl-
1320         container_cross_cc=${container_cross_prefix}clang
1321         ;;
1322       i386)
1323         container_image=debian-i686-cross
1324         container_cross_prefix=i686-linux-gnu-
1325         ;;
1326       loongarch64)
1327         container_image=debian-loongarch-cross
1328         container_cross_prefix=loongarch64-unknown-linux-gnu-
1329         ;;
1330       microblaze)
1331         container_cross_prefix=microblaze-linux-musl-
1332         ;;
1333       mips64el)
1334         container_image=debian-mips64el-cross
1335         container_cross_prefix=mips64el-linux-gnuabi64-
1336         ;;
1337       tricore)
1338         container_image=debian-tricore-cross
1339         container_cross_prefix=tricore-
1340         ;;
1341       x86_64)
1342         container_image=debian-amd64-cross
1343         ;;
1344       xtensa*)
1345         container_image=debian-xtensa-cross
1346
1347         # default to the dc232b cpu
1348         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1349         ;;
1350     esac
1351     # Debian and GNU architecture names usually match
1352     : ${container_image:=debian-$target_arch-cross}
1353     : ${container_cross_prefix:=$target_arch-linux-gnu-}
1354     : ${container_cross_cc:=${container_cross_prefix}gcc}
1355     : ${container_cross_ar:=${container_cross_prefix}ar}
1356     : ${container_cross_as:=${container_cross_prefix}as}
1357     : ${container_cross_ld:=${container_cross_prefix}ld}
1358     : ${container_cross_nm:=${container_cross_prefix}nm}
1359     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1360     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1361     : ${container_cross_strip:=${container_cross_prefix}strip}
1362   done
1363
1364   try=cross
1365   # For softmmu/roms also look for a bi-endian or multilib-enabled host compiler
1366   if [ "${1%softmmu}" != "$1" ] || test "$target_arch" = "$cpu"; then
1367       case "$target_arch:$cpu" in
1368         aarch64_be:aarch64 | \
1369         armeb:arm | \
1370         i386:x86_64 | \
1371         mips*:mips64 | \
1372         ppc*:ppc64 | \
1373         sparc:sparc64 | \
1374         "$cpu:$cpu")
1375         try='native cross' ;;
1376       esac
1377   fi
1378   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1379   for thistry in $try; do
1380     case $thistry in
1381     native)
1382       target_cc=$cc
1383       target_ccas=$ccas
1384       target_ar=$ar
1385       target_as=$as
1386       target_ld=$ld
1387       target_nm=$nm
1388       target_objcopy=$objcopy
1389       target_ranlib=$ranlib
1390       target_strip=$strip
1391       ;;
1392     cross)
1393       target_cc=
1394       if eval test -n "\"\${cross_cc_$target_arch}\""; then
1395         if eval has "\"\${cross_cc_$target_arch}\""; then
1396           eval "target_cc=\"\${cross_cc_$target_arch}\""
1397         fi
1398       else
1399         compute_target_variable $target_arch target_cc gcc
1400       fi
1401       target_ccas=$target_cc
1402       compute_target_variable $target_arch target_ar ar
1403       compute_target_variable $target_arch target_as as
1404       compute_target_variable $target_arch target_ld ld
1405       compute_target_variable $target_arch target_nm nm
1406       compute_target_variable $target_arch target_objcopy objcopy
1407       compute_target_variable $target_arch target_ranlib ranlib
1408       compute_target_variable $target_arch target_strip strip
1409       ;;
1410     esac
1411
1412     if test -n "$target_cc"; then
1413       case $target_arch in
1414         i386|x86_64)
1415           if $target_cc --version | grep -qi "clang"; then
1416             continue
1417           fi
1418           ;;
1419       esac
1420     elif test -n "$target_as" && test -n "$target_ld"; then
1421       # Special handling for assembler only targets
1422       case $target in
1423         tricore-softmmu)
1424           build_static=
1425           got_cross_cc=yes
1426           break
1427           ;;
1428         *)
1429           continue
1430           ;;
1431       esac
1432     else
1433       continue
1434     fi
1435
1436     write_c_skeleton
1437     case $1 in
1438       *-softmmu)
1439         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1440           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1441           got_cross_cc=yes
1442           break
1443         fi
1444         ;;
1445       *)
1446         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1447           build_static=y
1448           got_cross_cc=yes
1449           break
1450         fi
1451         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1452           build_static=
1453           got_cross_cc=yes
1454           break
1455         fi
1456         ;;
1457     esac
1458   done
1459   if test $got_cross_cc != yes; then
1460     build_static=
1461     target_cc=
1462     target_ccas=
1463     target_ar=
1464     target_as=
1465     target_ld=
1466     target_nm=
1467     target_objcopy=
1468     target_ranlib=
1469     target_strip=
1470   fi
1471   test -n "$target_cc"
1472 }
1473
1474 write_target_makefile() {
1475   echo "EXTRA_CFLAGS=$target_cflags"
1476   if test -z "$target_cc" && test -z "$target_as"; then
1477     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1478     echo "$1: docker-image-$container_image" >> Makefile.prereqs
1479     if test -n "$container_cross_cc"; then
1480       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1481       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1482     fi
1483     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1484     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1485     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1486     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1487     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1488     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1489     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1490   else
1491     if test -n "$target_cc"; then
1492       echo "CC=$target_cc"
1493       echo "CCAS=$target_ccas"
1494     fi
1495     if test -n "$target_ar"; then
1496       echo "AR=$target_ar"
1497     fi
1498     if test -n "$target_as"; then
1499       echo "AS=$target_as"
1500     fi
1501     if test -n "$target_ld"; then
1502       echo "LD=$target_ld"
1503     fi
1504     if test -n "$target_nm"; then
1505       echo "NM=$target_nm"
1506     fi
1507     if test -n "$target_objcopy"; then
1508       echo "OBJCOPY=$target_objcopy"
1509     fi
1510     if test -n "$target_ranlib"; then
1511       echo "RANLIB=$target_ranlib"
1512     fi
1513     if test -n "$target_strip"; then
1514       echo "STRIP=$target_strip"
1515     fi
1516   fi
1517 }
1518
1519 #######################################
1520 # cross-compiled firmware targets
1521
1522 # Set up build tree symlinks that point back into the source tree
1523 # (these can be both files and directories).
1524 # Caution: avoid adding files or directories here using wildcards. This
1525 # will result in problems later if a new file matching the wildcard is
1526 # added to the source tree -- nothing will cause configure to be rerun
1527 # so the build tree will be missing the link back to the new file, and
1528 # tests might fail. Prefer to keep the relevant files in their own
1529 # directory and symlink the directory instead.
1530 LINKS="Makefile"
1531 LINKS="$LINKS docs/config"
1532 LINKS="$LINKS pc-bios/optionrom/Makefile"
1533 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1534 LINKS="$LINKS pc-bios/vof/Makefile"
1535 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1536 LINKS="$LINKS tests/avocado tests/data"
1537 LINKS="$LINKS tests/qemu-iotests/check tests/qemu-iotests/Makefile"
1538 LINKS="$LINKS python"
1539 LINKS="$LINKS contrib/plugins/Makefile "
1540 for f in $LINKS ; do
1541     if [ -e "$source_path/$f" ]; then
1542         symlink "$source_path/$f" "$f"
1543     fi
1544 done
1545
1546 # use included Linux headers for KVM architectures
1547 if test "$host_os" = "linux" && test -n "$linux_arch"; then
1548   symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1549 fi
1550
1551 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1552
1553 # Mac OS X ships with a broken assembler
1554 if have_target i386-softmmu x86_64-softmmu && \
1555         test "$host_os" != "darwin" && test "$host_os" != "sunos" && \
1556         test "$host_os" != "haiku" && \
1557         probe_target_compiler i386-softmmu; then
1558     subdirs="$subdirs pc-bios/optionrom"
1559     config_mak=pc-bios/optionrom/config.mak
1560     echo "# Automatically generated by configure - do not modify" > $config_mak
1561     echo "TOPSRC_DIR=$source_path" >> $config_mak
1562     write_target_makefile >> $config_mak
1563 fi
1564
1565 if have_target ppc-softmmu ppc64-softmmu && \
1566         probe_target_compiler ppc-softmmu; then
1567     subdirs="$subdirs pc-bios/vof"
1568     config_mak=pc-bios/vof/config.mak
1569     echo "# Automatically generated by configure - do not modify" > $config_mak
1570     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1571     write_target_makefile >> $config_mak
1572 fi
1573
1574 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1575 # (which is the lowest architecture level that Clang supports)
1576 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1577     GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1578   write_c_skeleton
1579   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1580   has_z900=$?
1581   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1582     if [ $has_z900 != 0 ]; then
1583       echo "WARNING: Your compiler does not support the z900!"
1584       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1585     fi
1586     subdirs="$subdirs pc-bios/s390-ccw"
1587     config_mak=pc-bios/s390-ccw/config-host.mak
1588     echo "# Automatically generated by configure - do not modify" > $config_mak
1589     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1590     echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1591     write_target_makefile >> $config_mak
1592   fi
1593 fi
1594
1595 #######################################
1596 # generate config-host.mak
1597
1598 config_host_mak="config-host.mak"
1599
1600 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1601 echo >> $config_host_mak
1602
1603 echo all: >> $config_host_mak
1604
1605 echo "SRC_PATH=$source_path" >> $config_host_mak
1606 echo "TARGET_DIRS=$target_list" >> $config_host_mak
1607 echo "GDB=$gdb_bin" >> $config_host_mak
1608 if test "$container" != no; then
1609     echo "RUNC=$runc" >> $config_host_mak
1610 fi
1611 echo "SUBDIRS=$subdirs" >> $config_host_mak
1612 echo "PYTHON=$python" >> $config_host_mak
1613 echo "MKVENV_ENSUREGROUP=$mkvenv ensuregroup $mkvenv_online_flag" >> $config_host_mak
1614 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1615 echo "MESON=$meson" >> $config_host_mak
1616 echo "NINJA=$ninja" >> $config_host_mak
1617 echo "EXESUF=$EXESUF" >> $config_host_mak
1618 if test "$default_targets" = "yes"; then
1619   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1620 fi
1621
1622 # contrib/plugins configuration
1623 echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1624 echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1625 echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1626 echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1627 echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1628 if test "$host_os" = windows; then
1629   echo "DLLTOOL=$dlltool" >> contrib/plugins/$config_host_mak
1630 fi
1631 if test "$host_os" = darwin; then
1632   echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1633 fi
1634 if test "$host_os" = windows; then
1635   echo "CONFIG_WIN32=y" >> contrib/plugins/$config_host_mak
1636 fi
1637
1638 # tests/tcg configuration
1639 mkdir -p tests/tcg
1640 echo "# Automatically generated by configure - do not modify" > tests/tcg/$config_host_mak
1641 echo "SRC_PATH=$source_path" >> tests/tcg/$config_host_mak
1642 if test "$plugins" = "yes" ; then
1643     echo "CONFIG_PLUGIN=y" >> tests/tcg/$config_host_mak
1644 fi
1645
1646 tcg_tests_targets=
1647 for target in $target_list; do
1648   arch=${target%%-*}
1649
1650   case $target in
1651     xtensa*-linux-user)
1652       # the toolchain is not complete with headers, only build system tests
1653       continue
1654       ;;
1655     *-softmmu)
1656       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1657       qemu="qemu-system-$arch"
1658       ;;
1659     *-linux-user|*-bsd-user)
1660       qemu="qemu-$arch"
1661       ;;
1662   esac
1663
1664   if probe_target_compiler $target || test -n "$container_image"; then
1665       test -n "$container_image" && build_static=y
1666       mkdir -p "tests/tcg/$target"
1667       config_target_mak=tests/tcg/$target/config-target.mak
1668       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1669       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1670       echo "TARGET_NAME=$arch" >> "$config_target_mak"
1671       echo "TARGET=$target" >> "$config_target_mak"
1672       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1673       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1674       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1675
1676       # will GDB work with these binaries?
1677       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1678           echo "GDB=$gdb_bin" >> $config_target_mak
1679       fi
1680
1681       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1682       tcg_tests_targets="$tcg_tests_targets $target"
1683   fi
1684 done
1685
1686 if test "$tcg" = "enabled"; then
1687     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $config_host_mak
1688 fi
1689
1690 if test "$skip_meson" = no; then
1691   cross="config-meson.cross.new"
1692   meson_quote() {
1693     test $# = 0 && return
1694     echo "'$(echo $* | sed "s/ /','/g")'"
1695   }
1696
1697   echo "# Automatically generated by configure - do not modify" > $cross
1698   echo "[properties]" >> $cross
1699
1700   # unroll any custom device configs
1701   for a in $device_archs; do
1702       eval "c=\$devices_${a}"
1703       echo "${a}-softmmu = '$c'" >> $cross
1704   done
1705
1706   echo "[built-in options]" >> $cross
1707   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1708   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1709   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1710   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1711   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1712
1713   # Only enable by default for git builds and on select OSes
1714   echo "# environment defaults, can still be overridden on " >> $cross
1715   echo "# the command line" >> $cross
1716   if test -e "$source_path/.git" && \
1717       { test "$host_os" = linux || test "$host_os" = "windows"; }; then
1718       echo 'werror = true' >> $cross
1719   fi
1720   echo "[project options]" >> $cross
1721   if test "$SMBD" != ''; then
1722     echo "smbd = $(meson_quote "$SMBD")" >> $cross
1723   fi
1724   if test "${QEMU_GA_MANUFACTURER}" != ''; then
1725     echo "qemu_ga_manufacturer = $(meson_quote "${QEMU_GA_MANUFACTURER}")" >> $cross
1726   fi
1727   if test "${QEMU_GA_DISTRO}" != ''; then
1728     echo "qemu_ga_distro = $(meson_quote "${QEMU_GA_DISTRO}")" >> $cross
1729   fi
1730   if test "${QEMU_GA_VERSION}" != ''; then
1731     echo "qemu_ga_version = $(meson_quote "${QEMU_GA_VERSION}")" >> $cross
1732   fi
1733
1734   echo >> $cross
1735   echo "[binaries]" >> $cross
1736   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1737   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1738   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1739   echo "ar = [$(meson_quote $ar)]" >> $cross
1740   echo "dlltool = [$(meson_quote $dlltool)]" >> $cross
1741   echo "nm = [$(meson_quote $nm)]" >> $cross
1742   echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1743   echo "pkg-config = [$(meson_quote $pkg_config)]" >> $cross
1744   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1745   if has $sdl2_config; then
1746     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1747   fi
1748   echo "strip = [$(meson_quote $strip)]" >> $cross
1749   echo "widl = [$(meson_quote $widl)]" >> $cross
1750   echo "windres = [$(meson_quote $windres)]" >> $cross
1751   echo "windmc = [$(meson_quote $windmc)]" >> $cross
1752   if test "$cross_compile" = "yes"; then
1753     echo "[host_machine]" >> $cross
1754     echo "system = '$host_os'" >> $cross
1755     case "$cpu" in
1756         i386)
1757             echo "cpu_family = 'x86'" >> $cross
1758             ;;
1759         *)
1760             echo "cpu_family = '$cpu'" >> $cross
1761             ;;
1762     esac
1763     echo "cpu = '$cpu'" >> $cross
1764     if test "$bigendian" = "yes" ; then
1765         echo "endian = 'big'" >> $cross
1766     else
1767         echo "endian = 'little'" >> $cross
1768     fi
1769
1770     native="config-meson.native.new"
1771     echo "# Automatically generated by configure - do not modify" > $native
1772     echo "[binaries]" >> $native
1773     echo "c = [$(meson_quote $host_cc)]" >> $native
1774     mv $native config-meson.native
1775     meson_option_add --native-file
1776     meson_option_add config-meson.native
1777   fi
1778   mv $cross config-meson.cross
1779   meson_add_machine_file config-meson.cross
1780   if test -f "$source_path/configs/meson/$host_os.txt"; then
1781     meson_add_machine_file $source_path/configs/meson/$host_os.txt
1782   fi
1783
1784   rm -rf meson-private meson-info meson-logs
1785
1786   test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1787   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1788   test "$static" = yes && meson_option_add -Dprefer_static=true
1789   test "$pie" = no && meson_option_add -Db_pie=false
1790
1791   # QEMU options
1792   test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
1793   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1794   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1795   test "$plugins" = yes && meson_option_add "-Dplugins=true"
1796   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1797   run_meson() {
1798     NINJA=$ninja $meson setup "$@" "$PWD" "$source_path"
1799   }
1800   eval run_meson $meson_options
1801   if test "$?" -ne 0 ; then
1802       error_exit "meson setup failed"
1803   fi
1804   echo "$meson" > build.ninja.stamp
1805 else
1806   if test -f meson-private/cmd_line.txt; then
1807     # Adjust old command line options that were removed
1808     # sed -i is not portable
1809     perl -i -ne '
1810       /^sphinx_build/ && next;
1811       print;' meson-private/cmd_line.txt
1812   fi
1813 fi
1814
1815 # Save the configure command line for later reuse.
1816 cat <<EOD >config.status
1817 #!/bin/sh
1818 # Generated by configure.
1819 # Run this file to recreate the current configuration.
1820 # Compiler output produced by configure, useful for debugging
1821 # configure, is in config.log if it exists.
1822 EOD
1823
1824 preserve_env() {
1825     envname=$1
1826
1827     eval envval=\$$envname
1828
1829     if test -n "$envval"
1830     then
1831         echo "$envname='$envval'" >> config.status
1832         echo "export $envname" >> config.status
1833     else
1834         echo "unset $envname" >> config.status
1835     fi
1836 }
1837
1838 # Preserve various env variables that influence what
1839 # features/build target configure will detect
1840 preserve_env AR
1841 preserve_env AS
1842 preserve_env CC
1843 preserve_env CFLAGS
1844 preserve_env CXX
1845 preserve_env CXXFLAGS
1846 preserve_env DLLTOOL
1847 preserve_env LD
1848 preserve_env LDFLAGS
1849 preserve_env LD_LIBRARY_PATH
1850 preserve_env NM
1851 preserve_env OBJCFLAGS
1852 preserve_env OBJCOPY
1853 preserve_env PATH
1854 preserve_env PKG_CONFIG
1855 preserve_env PKG_CONFIG_LIBDIR
1856 preserve_env PKG_CONFIG_PATH
1857 preserve_env PYTHON
1858 preserve_env QEMU_GA_MANUFACTURER
1859 preserve_env QEMU_GA_DISTRO
1860 preserve_env QEMU_GA_VERSION
1861 preserve_env SDL2_CONFIG
1862 preserve_env SMBD
1863 preserve_env STRIP
1864 preserve_env WIDL
1865 preserve_env WINDRES
1866 preserve_env WINDMC
1867
1868 printf "exec" >>config.status
1869 for i in "$0" "$@"; do
1870   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1871 done
1872 echo ' "$@"' >>config.status
1873 chmod +x config.status
1874
1875 rm -r "$TMPDIR1"