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=$(uname -m)
 419   if test "$host_os" != "bogus"; then
 420     echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 421   fi
 422 fi
 423
 424 # Normalise host CPU name to the values used by Meson cross files and in source
 425 # directories, and set multilib cflags.  The canonicalization isn't really
 426 # necessary, because the architectures that we check for should not hit the
 427 # 'uname -m' case, but better safe than sorry in case --cpu= is used.
 428 #
 429 # Note that this case should only have supported host CPUs, not guests.
 430 # Please keep it sorted and synchronized with meson.build's host_arch.
 431 host_arch=
 432 linux_arch=
 433 case "$cpu" in
 434   aarch64)
 435     host_arch=aarch64
 436     linux_arch=arm64
 437     ;;
 438
 439   armv*b|armv*l|arm)
 440     cpu=arm
 441     host_arch=arm
 442     linux_arch=arm
 443     ;;
 444
 445   i386|i486|i586|i686)
 446     cpu="i386"
 447     host_arch=i386
 448     linux_arch=x86
 449     CPU_CFLAGS="-m32"
 450     ;;
 451
 452   loongarch*)
 453     cpu=loongarch64
 454     host_arch=loongarch64
 455     linux_arch=loongarch
 456     ;;
 457
 458   mips64*|mipsisa64*)
 459     cpu=mips64
 460     host_arch=mips
 461     linux_arch=mips
 462     ;;
 463   mips*)
 464     cpu=mips
 465     host_arch=mips
 466     linux_arch=mips
 467     ;;
 468
 469   ppc)
 470     host_arch=ppc
 471     linux_arch=powerpc
 472     CPU_CFLAGS="-m32"
 473     ;;
 474   ppc64)
 475     host_arch=ppc64
 476     linux_arch=powerpc
 477     CPU_CFLAGS="-m64 -mbig-endian"
 478     ;;
 479   ppc64le)
 480     cpu=ppc64
 481     host_arch=ppc64
 482     linux_arch=powerpc
 483     CPU_CFLAGS="-m64 -mlittle-endian"
 484     ;;
 485
 486   riscv32 | riscv64)
 487     host_arch=riscv
 488     linux_arch=riscv
 489     ;;
 490
 491   s390)
 492     linux_arch=s390
 493     CPU_CFLAGS="-m31"
 494     ;;
 495   s390x)
 496     host_arch=s390x
 497     linux_arch=s390
 498     CPU_CFLAGS="-m64"
 499     ;;
 500
 501   sparc|sun4[cdmuv])
 502     cpu=sparc
 503     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
 504     ;;
 505   sparc64)
 506     host_arch=sparc64
 507     CPU_CFLAGS="-m64 -mcpu=ultrasparc"
 508     ;;
 509
 510   x32)
 511     cpu="x86_64"
 512     host_arch=x86_64
 513     linux_arch=x86
 514     CPU_CFLAGS="-mx32"
 515     ;;
 516   x86_64|amd64)
 517     cpu="x86_64"
 518     host_arch=x86_64
 519     linux_arch=x86
 520     CPU_CFLAGS="-m64"
 521     ;;
 522 esac
 523
 524 if test -n "$host_arch" && {
 525     ! test -d "$source_path/linux-user/include/host/$host_arch" ||
 526     ! test -d "$source_path/common-user/host/$host_arch"; }; then
 527     error_exit "linux-user/include/host/$host_arch does not exist." \
 528        "This is a bug in the configure script, please report it."
 529 fi
 530 if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
 531     error_exit "linux-headers/asm-$linux_arch does not exist." \
 532        "This is a bug in the configure script, please report it."
 533 fi
 534
 535 check_py_version() {
 536     # We require python >= 3.8.
 537     # NB: a True python conditional creates a non-zero return code (Failure)
 538     "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
 539 }
 540
 541 first_python=
 542 if test -z "${PYTHON}"; then
 543     # A bare 'python' is traditionally python 2.x, but some distros
 544     # have it as python 3.x, so check in both places.
 545     for binary in python3 python python3.12 python3.11 \
 546                           python3.10 python3.9 python3.8; do
 547         if has "$binary"; then
 548             python=$(command -v "$binary")
 549             if check_py_version "$python"; then
 550                 # This one is good.
 551                 first_python=
 552                 break
 553             else
 554                 first_python=$python
 555             fi
 556         fi
 557     done
 558 else
 559     # Same as above, but only check the environment variable.
 560     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 561     python=$(command -v "$PYTHON")
 562     if check_py_version "$python"; then
 563         # This one is good.
 564         first_python=
 565     else
 566         first_python=$first_python
 567     fi
 568 fi
 569
 570 # Check for ancillary tools used in testing
 571 genisoimage=
 572 for binary in genisoimage mkisofs
 573 do
 574     if has $binary
 575     then
 576         genisoimage=$(command -v "$binary")
 577         break
 578     fi
 579 done
 580
 581 if test "$host_os" = "windows" ; then
 582   EXESUF=".exe"
 583 fi
 584
 585 meson_option_build_array() {
 586   printf '['
 587   (if test "$host_os" = windows; then
 588     IFS=\;
 589   else
 590     IFS=:
 591   fi
 592   for e in $1; do
 593     printf '"""'
 594     # backslash escape any '\' and '"' characters
 595     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 596     printf '""",'
 597   done)
 598   printf ']\n'
 599 }
 600
 601 . "$source_path/scripts/meson-buildoptions.sh"
 602
 603 meson_options=
 604 meson_option_add() {
 605   local arg
 606   for arg; do
 607     meson_options="$meson_options $(quote_sh "$arg")"
 608   done
 609 }
 610 meson_option_parse() {
 611   meson_options="$meson_options $(_meson_option_parse "$@")"
 612   if test $? -eq 1; then
 613     echo "ERROR: unknown option $1"
 614     echo "Try '$0 --help' for more information"
 615     exit 1
 616   fi
 617 }
 618
 619 meson_add_machine_file() {
 620   if test "$cross_compile" = "yes"; then
 621     meson_option_add --cross-file "$1"
 622   else
 623     meson_option_add --native-file "$1"
 624   fi
 625 }
 626
 627 for opt do
 628   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 629   case "$opt" in
 630   --help|-h) show_help=yes
 631   ;;
 632   --version|-V) exec cat "$source_path/VERSION"
 633   ;;
 634   --cross-prefix=*)
 635   ;;
 636   --cc=*)
 637   ;;
 638   --host-cc=*) host_cc="$optarg"
 639   ;;
 640   --cxx=*)
 641   ;;
 642   --objcc=*)
 643   ;;
 644   --make=*)
 645   ;;
 646   --install=*)
 647   ;;
 648   --python=*) python="$optarg"
 649   ;;
 650   --skip-meson) skip_meson=yes
 651   ;;
 652   --ninja=*) ninja="$optarg"
 653   ;;
 654   --extra-cflags=*)
 655   ;;
 656   --extra-cxxflags=*)
 657   ;;
 658   --extra-objcflags=*)
 659   ;;
 660   --extra-ldflags=*)
 661   ;;
 662   --cross-cc-*)
 663   ;;
 664   --cross-prefix-*)
 665   ;;
 666   --enable-docs) docs=enabled
 667   ;;
 668   --disable-docs) docs=disabled
 669   ;;
 670   --cpu=*)
 671   ;;
 672   --target-list=*) target_list="$optarg"
 673                    if test "$target_list_exclude"; then
 674                        error_exit "Can't mix --target-list with --target-list-exclude"
 675                    fi
 676   ;;
 677   --target-list-exclude=*) target_list_exclude="$optarg"
 678                    if test "$target_list"; then
 679                        error_exit "Can't mix --target-list-exclude with --target-list"
 680                    fi
 681   ;;
 682   --with-default-devices) meson_option_add -Ddefault_devices=true
 683   ;;
 684   --without-default-devices) meson_option_add -Ddefault_devices=false
 685   ;;
 686   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 687   ;;
 688   --with-devices-*) device_arch=${opt#--with-devices-};
 689                     device_arch=${device_arch%%=*}
 690                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 691                     if test -f "$cf"; then
 692                         device_archs="$device_archs $device_arch"
 693                         eval "devices_${device_arch}=\$optarg"
 694                     else
 695                         error_exit "File $cf does not exist"
 696                     fi
 697   ;;
 698   --without-default-features) # processed above
 699   ;;
 700   --static) static="yes"
 701   ;;
 702   --host=*|--build=*|\
 703   --disable-dependency-tracking|\
 704   --sbindir=*|--sharedstatedir=*|\
 705   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 706   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 707     # These switches are silently ignored, for compatibility with
 708     # autoconf-generated configure scripts. This allows QEMU's
 709     # configure to be used by RPM and similar macros that set
 710     # lots of directory switches by default.
 711   ;;
 712   --enable-debug)
 713       # Enable debugging options that aren't excessively noisy
 714       meson_option_parse --enable-debug-tcg ""
 715       meson_option_parse --enable-debug-graph-lock ""
 716       meson_option_parse --enable-debug-mutex ""
 717       meson_option_add -Doptimization=0
 718       default_cflags='-O0 -g'
 719   ;;
 720   --disable-tcg) tcg="disabled"
 721   ;;
 722   --enable-tcg) tcg="enabled"
 723   ;;
 724   --disable-system) system="no"
 725   ;;
 726   --enable-system) system="yes"
 727   ;;
 728   --disable-user)
 729       linux_user="no" ;
 730       bsd_user="no" ;
 731   ;;
 732   --enable-user) ;;
 733   --disable-linux-user) linux_user="no"
 734   ;;
 735   --enable-linux-user) linux_user="yes"
 736   ;;
 737   --disable-bsd-user) bsd_user="no"
 738   ;;
 739   --enable-bsd-user) bsd_user="yes"
 740   ;;
 741   --enable-pie) pie="yes"
 742   ;;
 743   --disable-pie) pie="no"
 744   ;;
 745   --enable-cfi) cfi=true
 746   ;;
 747   --disable-cfi) cfi=false
 748   ;;
 749   --disable-download) download="disabled"; git_submodules_action=validate;
 750   ;;
 751   --enable-download) download="enabled"; git_submodules_action=update;
 752   ;;
 753   --enable-plugins) plugins="yes"
 754   ;;
 755   --disable-plugins) plugins="no"
 756   ;;
 757   --enable-containers) use_containers="yes"
 758   ;;
 759   --disable-containers) use_containers="no"
 760   ;;
 761   --container-engine=*) container_engine="$optarg"
 762   ;;
 763   --gdb=*) gdb_bin="$optarg"
 764   ;;
 765   # everything else has the same name in configure and meson
 766   --*) meson_option_parse "$opt" "$optarg"
 767   ;;
 768   # Pass through -Dxxxx options to meson
 769   -D*) meson_option_add "$opt"
 770   ;;
 771   esac
 772 done
 773
 774 if ! test -e "$source_path/.git"
 775 then
 776     git_submodules_action="validate"
 777 fi
 778
 779 if ! test -f "$source_path/subprojects/keycodemapdb/README" \
 780     && test "$download" = disabled
 781 then
 782     echo
 783     echo "ERROR: missing subprojects"
 784     echo
 785     if test -e "$source_path/.git"; then
 786         echo "--disable-download specified but subprojects were not"
 787         echo 'checked out.  Please invoke "meson subprojects download"'
 788         echo "before configuring QEMU, or remove --disable-download"
 789         echo "from the command line."
 790     else
 791         echo "This is not a GIT checkout but subproject content appears to"
 792         echo "be missing. Do not use 'git archive' or GitHub download links"
 793         echo "to acquire QEMU source archives. Non-GIT builds are only"
 794         echo "supported with source archives linked from:"
 795         echo
 796         echo "  https://www.qemu.org/download/#source"
 797         echo
 798         echo "Developers working with GIT can use scripts/archive-source.sh"
 799         echo "if they need to create valid source archives."
 800     fi
 801     echo
 802     exit 1
 803 fi
 804
 805 default_target_list=""
 806 mak_wilds=""
 807
 808 if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
 809     if [ "$linux_user" != no ]; then
 810         if [ "$host_os" = linux ]; then
 811             linux_user=yes
 812         elif [ "$linux_user" = yes ]; then
 813             error_exit "linux-user not supported on this architecture"
 814         fi
 815         if [ "$linux_user" = "yes" ]; then
 816             mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 817         fi
 818     fi
 819     if [ "$bsd_user" != no ]; then
 820         if [ "$bsd_user" = "" ]; then
 821             test $host_os = freebsd && bsd_user=yes
 822         fi
 823         if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$host_os" ]; then
 824             error_exit "bsd-user not supported on this host OS"
 825         fi
 826         if [ "$bsd_user" = "yes" ]; then
 827             mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 828         fi
 829     fi
 830 else
 831     if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
 832         error_exit "user mode emulation not supported on this architecture"
 833     fi
 834 fi
 835 if [ "$system" = "yes" ]; then
 836     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 837 fi
 838
 839 for config in $mak_wilds; do
 840     target="$(basename "$config" .mak)"
 841     if echo "$target_list_exclude" | grep -vq "$target"; then
 842         default_target_list="${default_target_list} $target"
 843     fi
 844 done
 845
 846 if test x"$show_help" = x"yes" ; then
 847 cat << EOF
 848
 849 Usage: configure [options]
 850 Options: [defaults in brackets after descriptions]
 851
 852 Standard options:
 853   --help                   print this message
 854   --target-list=LIST       set target list (default: build all)
 855 $(echo Available targets: $default_target_list | \
 856   fold -s -w 53 | sed -e 's/^/                           /')
 857   --target-list-exclude=LIST exclude a set of targets from the default target-list
 858
 859 Advanced options (experts only):
 860   -Dmesonoptname=val       passthrough option to meson unmodified
 861   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 862   --cc=CC                  use C compiler CC [$cc]
 863   --host-cc=CC             when cross compiling, use C compiler CC for code run
 864                            at build time [$host_cc]
 865   --cxx=CXX                use C++ compiler CXX [$cxx]
 866   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
 867   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
 868   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
 869   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
 870   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
 871   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
 872   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
 873   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
 874   --python=PYTHON          use specified python [$python]
 875   --ninja=NINJA            use specified ninja [$ninja]
 876   --static                 enable static build [$static]
 877   --without-default-features default all --enable-* options to "disabled"
 878   --without-default-devices  do not include any device that is not needed to
 879                            start the emulator (only use if you are including
 880                            desired devices in configs/devices/)
 881   --with-devices-ARCH=NAME override default configs/devices
 882   --enable-debug           enable common debug build options
 883   --cpu=CPU                Build for host CPU [$cpu]
 884   --disable-containers     don't use containers for cross-building
 885   --container-engine=TYPE  which container engine to use [$container_engine]
 886   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
 887 EOF
 888   meson_options_help
 889 cat << EOF
 890   system          all system emulation targets
 891   user            supported user emulation targets
 892   linux-user      all linux usermode emulation targets
 893   bsd-user        all BSD usermode emulation targets
 894   pie             Position Independent Executables
 895
 896 NOTE: The object files are built at the place where configure is launched
 897 EOF
 898 exit 0
 899 fi
 900
 901 # Now that we are sure that the user did not only want to print the --help
 902 # information, we should double-check that the C compiler really works:
 903 write_c_skeleton
 904 if ! compile_object ; then
 905     error_exit "C compiler \"$cc\" either does not exist or does not work."
 906 fi
 907
 908 # Remove old dependency files to make sure that they get properly regenerated
 909 rm -f ./*/config-devices.mak.d
 910
 911 if test -z "$python"
 912 then
 913     # If first_python is set, there was a binary somewhere even though
 914     # it was not suitable.  Use it for the error message.
 915     if test -n "$first_python"; then
 916         error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
 917             "Use --python=/path/to/python to specify a supported Python."
 918     else
 919         error_exit "Python not found. Use --python=/path/to/python"
 920     fi
 921 fi
 922
 923 if ! check_py_version "$python"; then
 924   error_exit "Cannot use '$python', Python >= 3.8 is required." \
 925              "Use --python=/path/to/python to specify a supported Python." \
 926              "Maybe try:" \
 927              "  openSUSE Leap 15.3+: zypper install python39" \
 928              "  CentOS 8: dnf install python38"
 929 fi
 930
 931 # Resolve PATH
 932 python="$(command -v "$python")"
 933
 934 # Create a Python virtual environment using our configured python.
 935 # The stdout of this script will be the location of a symlink that
 936 # points to the configured Python.
 937 # Entry point scripts for pip, meson, and sphinx are generated if those
 938 # packages are present.
 939
 940 # Defaults assumed for now:
 941 # - venv is cleared if it exists already;
 942 # - venv is allowed to use system packages;
 943 # - all setup can be performed offline;
 944 # - missing packages may be fetched from PyPI,
 945 #   unless --disable-download is passed.
 946 # - pip is not installed into the venv when possible,
 947 #   but ensurepip is called as a fallback when necessary.
 948
 949 echo "python determined to be '$python'"
 950 echo "python version: $($python --version)"
 951
 952 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
 953 if test "$?" -ne 0 ; then
 954     error_exit "python venv creation failed"
 955 fi
 956
 957 # Suppress writing compiled files
 958 python="$python -B"
 959 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
 960
 961 # Finish preparing the virtual environment using vendored .whl files
 962
 963 $mkvenv ensuregroup --dir "${source_path}/python/wheels" \
 964      ${source_path}/pythondeps.toml meson || exit 1
 965
 966 # At this point, we expect Meson to be installed and available.
 967 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
 968 # We ignore PATH completely here: we want to use the venv's Meson
 969 # *exclusively*.
 970
 971 meson="$(cd pyvenv/bin; pwd)/meson"
 972
 973 # Conditionally ensure Sphinx is installed.
 974
 975 mkvenv_online_flag=""
 976 if test "$download" = "enabled" ; then
 977     mkvenv_online_flag=" --online"
 978 fi
 979
 980 if test "$docs" != "disabled" ; then
 981     if ! $mkvenv ensuregroup \
 982          $(test "$docs" = "enabled" && echo "$mkvenv_online_flag") \
 983          ${source_path}/pythondeps.toml docs;
 984     then
 985         if test "$docs" = "enabled" ; then
 986             exit 1
 987         fi
 988         echo "Sphinx not found/usable, disabling docs."
 989         docs=disabled
 990     else
 991         docs=enabled
 992     fi
 993 fi
 994
 995 # Probe for ninja
 996
 997 if test -z "$ninja"; then
 998     for c in ninja ninja-build samu; do
 999         if has $c; then
1000             ninja=$(command -v "$c")
1001             break
1002         fi
1003     done
1004     if test -z "$ninja"; then
1005       error_exit "Cannot find Ninja"
1006     fi
1007 fi
1008
1009 if test "$host_os" = "bogus"; then
1010     # Now that we know that we're not printing the help and that
1011     # the compiler works (so the results of the check_defines we used
1012     # to identify the OS are reliable), if we didn't recognize the
1013     # host OS we should stop now.
1014     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1015 fi
1016
1017 # test for any invalid configuration combinations
1018 if test "$host_os" = "windows" && ! has "$dlltool"; then
1019   if test "$plugins" = "yes"; then
1020     error_exit "TCG plugins requires dlltool to build on Windows platforms"
1021   fi
1022   plugins="no"
1023 fi
1024 if test "$tcg" = "disabled" ; then
1025   if test "$plugins" = "yes"; then
1026     error_exit "Can't enable plugins on non-TCG builds"
1027   fi
1028   plugins="no"
1029 fi
1030 if test "$static" = "yes" ; then
1031   if test "$plugins" = "yes"; then
1032     error_exit "static and plugins are mutually incompatible"
1033   fi
1034   plugins="no"
1035 fi
1036 if test "$plugins" != "no"; then
1037   plugins=yes
1038   subdirs="$subdirs contrib/plugins"
1039 fi
1040
1041 cat > $TMPC << EOF
1042
1043 #ifdef __linux__
1044 #  define THREAD __thread
1045 #else
1046 #  define THREAD
1047 #endif
1048 static THREAD int tls_var;
1049 int main(void) { return tls_var; }
1050 EOF
1051
1052 if test "$host_os" = windows || test "$host_os" = haiku; then
1053   if test "$pie" = "yes"; then
1054     error_exit "PIE not available due to missing OS support"
1055   fi
1056   pie=no
1057 fi
1058
1059 if test "$pie" != "no"; then
1060   if test "$static" = "yes"; then
1061     pie_ldflags=-static-pie
1062   else
1063     pie_ldflags=-pie
1064   fi
1065   if compile_prog "-Werror -fPIE -DPIE" "$pie_ldflags"; then
1066     pie="yes"
1067   elif test "$pie" = "yes"; then
1068     error_exit "-static-pie not available due to missing toolchain support"
1069   else
1070     echo "Disabling PIE due to missing toolchain support"
1071     pie="no"
1072   fi
1073 fi
1074
1075 ##########################################
1076
1077 if test -z "${target_list+xxx}" ; then
1078     default_targets=yes
1079     for target in $default_target_list; do
1080         target_list="$target_list $target"
1081     done
1082     target_list="${target_list# }"
1083 else
1084     default_targets=no
1085     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1086     for target in $target_list; do
1087         # Check that we recognised the target name; this allows a more
1088         # friendly error message than if we let it fall through.
1089         case " $default_target_list " in
1090             *" $target "*)
1091                 ;;
1092             *)
1093                 error_exit "Unknown target name '$target'"
1094                 ;;
1095         esac
1096     done
1097 fi
1098
1099 if test "$tcg" = "auto"; then
1100   if test -z "$target_list"; then
1101     tcg="disabled"
1102   else
1103     tcg="enabled"
1104   fi
1105 fi
1106
1107 #########################################
1108 # gdb test
1109
1110 if test -n "$gdb_bin"; then
1111     gdb_version=$($gdb_bin --version | head -n 1)
1112     if version_ge ${gdb_version##* } 9.1; then
1113         gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1114     else
1115         gdb_bin=""
1116     fi
1117 fi
1118
1119 ##########################################
1120 # big/little endian test
1121 cat > $TMPC << EOF
1122 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1123 # error LITTLE
1124 #endif
1125 int main(void) { return 0; }
1126 EOF
1127
1128 if ! compile_prog ; then
1129   bigendian="no"
1130 else
1131   cat > $TMPC << EOF
1132 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1133 # error BIG
1134 #endif
1135 int main(void) { return 0; }
1136 EOF
1137
1138   if ! compile_prog ; then
1139     bigendian="yes"
1140   else
1141     echo big/little test failed
1142     exit 1
1143   fi
1144 fi
1145
1146 ##########################################
1147 # functions to probe cross compilers
1148
1149 container="no"
1150 runc=""
1151 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1152     case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1153         *docker) container=docker ;;
1154         podman) container=podman ;;
1155         no) container=no ;;
1156     esac
1157     if test "$container" != "no"; then
1158         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1159         runc=$container
1160     fi
1161 fi
1162
1163 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1164 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1165 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1166 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1167 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1168 : ${cross_prefix_armeb="$cross_prefix_arm"}
1169 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1170 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1171 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1172 : ${cross_prefix_i386="i686-linux-gnu-"}
1173 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1174 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1175 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1176 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1177 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1178 : ${cross_prefix_mips="mips-linux-gnu-"}
1179 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1180 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1181 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1182 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1183 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1184 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1185 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1186 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1187 : ${cross_prefix_tricore="tricore-"}
1188 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1189
1190 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1191 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1192 : ${cross_cc_armeb="$cross_cc_arm"}
1193 : ${cross_cc_cflags_armeb="-mbig-endian"}
1194 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1195 : ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1196 : ${cross_cc_cflags_i386="-m32"}
1197 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1198 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1199 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1200 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1201 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1202 : ${cross_cc_sparc="$cross_cc_sparc64"}
1203 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1204 : ${cross_cc_cflags_x86_64="-m64 -mcx16"}
1205
1206 compute_target_variable() {
1207   eval "$2="
1208   if eval test -n "\"\${cross_prefix_$1}\""; then
1209     if eval has "\"\${cross_prefix_$1}\$3\""; then
1210       eval "$2=\"\${cross_prefix_$1}\$3\""
1211     fi
1212   fi
1213 }
1214
1215 have_target() {
1216   for i; do
1217     case " $target_list " in
1218       *" $i "*) return 0;;
1219       *) ;;
1220     esac
1221   done
1222   return 1
1223 }
1224
1225 # probe_target_compiler TARGET
1226 #
1227 # Look for a compiler for the given target, either native or cross.
1228 # Set variables target_* if a compiler is found, and container_cross_*
1229 # if a Docker-based cross-compiler image is known for the target.
1230 # Set got_cross_cc to yes/no depending on whether a non-container-based
1231 # compiler was found.
1232 #
1233 # If TARGET is a user-mode emulation target, also set build_static to
1234 # "y" if static linking is possible.
1235 #
1236 probe_target_compiler() {
1237   # reset all output variables
1238   got_cross_cc=no
1239   container_image=
1240   container_hosts=
1241   container_cross_prefix=
1242   container_cross_cc=
1243   container_cross_ar=
1244   container_cross_as=
1245   container_cross_ld=
1246   container_cross_nm=
1247   container_cross_objcopy=
1248   container_cross_ranlib=
1249   container_cross_strip=
1250
1251   target_arch=${1%%-*}
1252   case $target_arch in
1253     aarch64) container_hosts="x86_64 aarch64" ;;
1254     alpha) container_hosts=x86_64 ;;
1255     arm) container_hosts="x86_64 aarch64" ;;
1256     cris) container_hosts=x86_64 ;;
1257     hexagon) container_hosts=x86_64 ;;
1258     hppa) container_hosts=x86_64 ;;
1259     i386) container_hosts=x86_64 ;;
1260     loongarch64) container_hosts=x86_64 ;;
1261     m68k) container_hosts=x86_64 ;;
1262     microblaze) container_hosts=x86_64 ;;
1263     mips64el) container_hosts=x86_64 ;;
1264     mips64) container_hosts=x86_64 ;;
1265     mipsel) container_hosts=x86_64 ;;
1266     mips) 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" >> $config_target_mak
1679       fi
1680
1681       if test "${arch}" = "aarch64" && version_ge ${gdb_version##* } 15.0; then
1682           echo "GDB_HAS_MTE=y" >> $config_target_mak
1683       fi
1684
1685       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1686       tcg_tests_targets="$tcg_tests_targets $target"
1687   fi
1688 done
1689
1690 if test "$tcg" = "enabled"; then
1691     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $config_host_mak
1692 fi
1693
1694 if test "$skip_meson" = no; then
1695   cross="config-meson.cross.new"
1696   meson_quote() {
1697     test $# = 0 && return
1698     echo "'$(echo $* | sed "s/ /','/g")'"
1699   }
1700
1701   echo "# Automatically generated by configure - do not modify" > $cross
1702   echo "[properties]" >> $cross
1703
1704   # unroll any custom device configs
1705   for a in $device_archs; do
1706       eval "c=\$devices_${a}"
1707       echo "${a}-softmmu = '$c'" >> $cross
1708   done
1709
1710   echo "[built-in options]" >> $cross
1711   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1712   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1713   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1714   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1715   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1716
1717   # Only enable by default for git builds and on select OSes
1718   echo "# environment defaults, can still be overridden on " >> $cross
1719   echo "# the command line" >> $cross
1720   if test -e "$source_path/.git" && \
1721       { test "$host_os" = linux || test "$host_os" = "windows"; }; then
1722       echo 'werror = true' >> $cross
1723   fi
1724   echo "[project options]" >> $cross
1725   if test "$SMBD" != ''; then
1726     echo "smbd = $(meson_quote "$SMBD")" >> $cross
1727   fi
1728   if test "${QEMU_GA_MANUFACTURER}" != ''; then
1729     echo "qemu_ga_manufacturer = $(meson_quote "${QEMU_GA_MANUFACTURER}")" >> $cross
1730   fi
1731   if test "${QEMU_GA_DISTRO}" != ''; then
1732     echo "qemu_ga_distro = $(meson_quote "${QEMU_GA_DISTRO}")" >> $cross
1733   fi
1734   if test "${QEMU_GA_VERSION}" != ''; then
1735     echo "qemu_ga_version = $(meson_quote "${QEMU_GA_VERSION}")" >> $cross
1736   fi
1737
1738   echo >> $cross
1739   echo "[binaries]" >> $cross
1740   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1741   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1742   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1743   echo "ar = [$(meson_quote $ar)]" >> $cross
1744   echo "dlltool = [$(meson_quote $dlltool)]" >> $cross
1745   echo "nm = [$(meson_quote $nm)]" >> $cross
1746   echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1747   echo "pkg-config = [$(meson_quote $pkg_config)]" >> $cross
1748   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1749   if has $sdl2_config; then
1750     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1751   fi
1752   echo "strip = [$(meson_quote $strip)]" >> $cross
1753   echo "widl = [$(meson_quote $widl)]" >> $cross
1754   echo "windres = [$(meson_quote $windres)]" >> $cross
1755   echo "windmc = [$(meson_quote $windmc)]" >> $cross
1756   if test "$cross_compile" = "yes"; then
1757     echo "[host_machine]" >> $cross
1758     echo "system = '$host_os'" >> $cross
1759     case "$cpu" in
1760         i386)
1761             echo "cpu_family = 'x86'" >> $cross
1762             ;;
1763         *)
1764             echo "cpu_family = '$cpu'" >> $cross
1765             ;;
1766     esac
1767     echo "cpu = '$cpu'" >> $cross
1768     if test "$bigendian" = "yes" ; then
1769         echo "endian = 'big'" >> $cross
1770     else
1771         echo "endian = 'little'" >> $cross
1772     fi
1773
1774     native="config-meson.native.new"
1775     echo "# Automatically generated by configure - do not modify" > $native
1776     echo "[binaries]" >> $native
1777     echo "c = [$(meson_quote $host_cc)]" >> $native
1778     mv $native config-meson.native
1779     meson_option_add --native-file
1780     meson_option_add config-meson.native
1781   fi
1782   mv $cross config-meson.cross
1783   meson_add_machine_file config-meson.cross
1784   if test -f "$source_path/configs/meson/$host_os.txt"; then
1785     meson_add_machine_file $source_path/configs/meson/$host_os.txt
1786   fi
1787
1788   rm -rf meson-private meson-info meson-logs
1789
1790   test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1791   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1792   test "$static" = yes && meson_option_add -Dprefer_static=true
1793   test "$pie" = no && meson_option_add -Db_pie=false
1794
1795   # QEMU options
1796   test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
1797   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1798   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1799   test "$plugins" = yes && meson_option_add "-Dplugins=true"
1800   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1801   run_meson() {
1802     NINJA=$ninja $meson setup "$@" "$PWD" "$source_path"
1803   }
1804   eval run_meson $meson_options
1805   if test "$?" -ne 0 ; then
1806       error_exit "meson setup failed"
1807   fi
1808   echo "$meson" > build.ninja.stamp
1809 else
1810   if test -f meson-private/cmd_line.txt; then
1811     # Adjust old command line options that were removed
1812     # sed -i is not portable
1813     perl -i -ne '
1814       /^sphinx_build/ && next;
1815       print;' meson-private/cmd_line.txt
1816   fi
1817 fi
1818
1819 # Save the configure command line for later reuse.
1820 cat <<EOD >config.status
1821 #!/bin/sh
1822 # Generated by configure.
1823 # Run this file to recreate the current configuration.
1824 # Compiler output produced by configure, useful for debugging
1825 # configure, is in config.log if it exists.
1826 EOD
1827
1828 preserve_env() {
1829     envname=$1
1830
1831     eval envval=\$$envname
1832
1833     if test -n "$envval"
1834     then
1835         echo "$envname='$envval'" >> config.status
1836         echo "export $envname" >> config.status
1837     else
1838         echo "unset $envname" >> config.status
1839     fi
1840 }
1841
1842 # Preserve various env variables that influence what
1843 # features/build target configure will detect
1844 preserve_env AR
1845 preserve_env AS
1846 preserve_env CC
1847 preserve_env CFLAGS
1848 preserve_env CXX
1849 preserve_env CXXFLAGS
1850 preserve_env DLLTOOL
1851 preserve_env LD
1852 preserve_env LDFLAGS
1853 preserve_env LD_LIBRARY_PATH
1854 preserve_env NM
1855 preserve_env OBJCFLAGS
1856 preserve_env OBJCOPY
1857 preserve_env PATH
1858 preserve_env PKG_CONFIG
1859 preserve_env PKG_CONFIG_LIBDIR
1860 preserve_env PKG_CONFIG_PATH
1861 preserve_env PYTHON
1862 preserve_env QEMU_GA_MANUFACTURER
1863 preserve_env QEMU_GA_DISTRO
1864 preserve_env QEMU_GA_VERSION
1865 preserve_env SDL2_CONFIG
1866 preserve_env SMBD
1867 preserve_env STRIP
1868 preserve_env WIDL
1869 preserve_env WINDRES
1870 preserve_env WINDMC
1871
1872 printf "exec" >>config.status
1873 for i in "$0" "$@"; do
1874   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1875 done
1876 echo ' "$@"' >>config.status
1877 chmod +x config.status
1878
1879 rm -r "$TMPDIR1"