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