configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     if ! mkdir build || ! touch $MARKER
  35     then
  36         echo "ERROR: Could not create ./build directory. Check the permissions on"
  37         echo "your source directory, or try doing an out-of-tree build."
  38         exit 1
  39     fi
  40
  41     cat > GNUmakefile <<'EOF'
  42 # This file is auto-generated by configure to support in-source tree
  43 # 'make' command invocation
  44
  45 ifeq ($(MAKECMDGOALS),)
  46 recurse: all
  47 endif
  48
  49 .NOTPARALLEL: %
  50 %: force
  51         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  52         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  53         @if test "$(MAKECMDGOALS)" = "distclean" && \
  54             test -e build/auto-created-by-configure ; \
  55         then \
  56             rm -rf build GNUmakefile ; \
  57         fi
  58 force: ;
  59 .PHONY: force
  60 GNUmakefile: ;
  61
  62 EOF
  63     cd build
  64     exec "$source_path/configure" "$@"
  65 fi
  66
  67 # Temporary directory used for files created while
  68 # configure runs. Since it is in the build directory
  69 # we can safely blow away any previous version of it
  70 # (and we need not jump through hoops to try to delete
  71 # it when configure exits.)
  72 TMPDIR1="config-temp"
  73 rm -rf "${TMPDIR1}"
  74 if ! mkdir -p "${TMPDIR1}"; then
  75     echo "ERROR: failed to create temporary directory"
  76     exit 1
  77 fi
  78
  79 TMPB="qemu-conf"
  80 TMPC="${TMPDIR1}/${TMPB}.c"
  81 TMPO="${TMPDIR1}/${TMPB}.o"
  82 TMPM="${TMPDIR1}/${TMPB}.m"
  83 TMPE="${TMPDIR1}/${TMPB}.exe"
  84
  85 rm -f config.log
  86
  87 # Print a helpful header at the top of config.log
  88 echo "# QEMU configure log $(date)" >> config.log
  89 printf "# Configured with:" >> config.log
  90 # repeat the invocation to log and stdout for CI
  91 invoke=$(printf " '%s'" "$0" "$@")
  92 test -n "$GITLAB_CI" && echo "configuring with: $invoke"
  93 { echo "$invoke"; echo; echo "#"; } >> config.log
  94
  95 quote_sh() {
  96     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  97 }
  98
  99 print_error() {
 100     (echo
 101     echo "ERROR: $1"
 102     while test -n "$2"; do
 103         echo "       $2"
 104         shift
 105     done
 106     echo) >&2
 107 }
 108
 109 error_exit() {
 110     print_error "$@"
 111     exit 1
 112 }
 113
 114 do_compiler() {
 115   # Run the compiler, capturing its output to the log. First argument
 116   # is compiler binary to execute.
 117   compiler="$1"
 118   shift
 119   if test -n "$BASH_VERSION"; then eval '
 120       echo >>config.log "
 121 funcs: ${FUNCNAME[*]}
 122 lines: ${BASH_LINENO[*]}"
 123   '; fi
 124   echo $compiler "$@" >> config.log
 125   $compiler "$@" >> config.log 2>&1 || return $?
 126 }
 127
 128 do_compiler_werror() {
 129     # Run the compiler, capturing its output to the log. First argument
 130     # is compiler binary to execute.
 131     compiler="$1"
 132     shift
 133     if test -n "$BASH_VERSION"; then eval '
 134         echo >>config.log "
 135 funcs: ${FUNCNAME[*]}
 136 lines: ${BASH_LINENO[*]}"
 137     '; fi
 138     echo $compiler "$@" >> config.log
 139     $compiler "$@" >> config.log 2>&1 || return $?
 140     # Test passed. If this is an --enable-werror build, rerun
 141     # the test with -Werror and bail out if it fails. This
 142     # makes warning-generating-errors in configure test code
 143     # obvious to developers.
 144     if test "$werror" != "yes"; then
 145         return 0
 146     fi
 147     # Don't bother rerunning the compile if we were already using -Werror
 148     case "$*" in
 149         *-Werror*)
 150            return 0
 151         ;;
 152     esac
 153     echo $compiler -Werror "$@" >> config.log
 154     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 155     error_exit "configure test passed without -Werror but failed with -Werror." \
 156         "This is probably a bug in the configure script. The failing command" \
 157         "will be at the bottom of config.log." \
 158         "You can run configure with --disable-werror to bypass this check."
 159 }
 160
 161 do_cc() {
 162     do_compiler_werror "$cc" $CPU_CFLAGS "$@"
 163 }
 164
 165 do_objc() {
 166     do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
 167 }
 168
 169 # Append $2 to the variable named $1, with space separation
 170 add_to() {
 171     eval $1=\${$1:+\"\$$1 \"}\$2
 172 }
 173
 174 compile_object() {
 175   local_cflags="$1"
 176   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 177 }
 178
 179 compile_prog() {
 180   local_cflags="$1"
 181   local_ldflags="$2"
 182   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 183       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $local_ldflags
 184 }
 185
 186 # symbolically link $1 to $2.  Portable version of "ln -sf".
 187 symlink() {
 188   rm -rf "$2"
 189   mkdir -p "$(dirname "$2")"
 190   ln -s "$1" "$2"
 191 }
 192
 193 # check whether a command is available to this shell (may be either an
 194 # executable or a builtin)
 195 has() {
 196     type "$1" >/dev/null 2>&1
 197 }
 198
 199 version_ge () {
 200     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 201     local_ver2=$(echo "$2" | tr . ' ')
 202     while true; do
 203         set x $local_ver1
 204         local_first=${2-0}
 205         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 206         shift ${2:+2}
 207         local_ver1=$*
 208         set x $local_ver2
 209         # the second argument finished, the first must be greater or equal
 210         test $# = 1 && return 0
 211         test $local_first -lt $2 && return 1
 212         test $local_first -gt $2 && return 0
 213         shift ${2:+2}
 214         local_ver2=$*
 215     done
 216 }
 217
 218 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 219 then
 220   error_exit "main directory cannot contain spaces nor colons"
 221 fi
 222
 223 # default parameters
 224 cpu=""
 225 static="no"
 226 cross_compile="no"
 227 cross_prefix=""
 228 host_cc="cc"
 229 use_containers="yes"
 230 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 231 gdb_arches=""
 232
 233 if test -e "$source_path/.git"
 234 then
 235     git_submodules_action="update"
 236 else
 237     git_submodules_action="ignore"
 238 fi
 239
 240 git_submodules="ui/keycodemapdb"
 241 git="git"
 242
 243 # Don't accept a target_list environment variable.
 244 unset target_list
 245 unset target_list_exclude
 246
 247 # Default value for a variable defining feature "foo".
 248 #  * foo="no"  feature will only be used if --enable-foo arg is given
 249 #  * foo=""    feature will be searched for, and if found, will be used
 250 #              unless --disable-foo is given
 251 #  * foo="yes" this value will only be set by --enable-foo flag.
 252 #              feature will searched for,
 253 #              if not found, configure exits with error
 254 #
 255 # Always add --enable-foo and --disable-foo command line args.
 256 # Distributions want to ensure that several features are compiled in, and it
 257 # is impossible without a --enable-foo that exits if a feature is not found.
 258
 259 default_feature=""
 260 # parse CC options second
 261 for opt do
 262   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 263   case "$opt" in
 264       --without-default-features)
 265           default_feature="no"
 266   ;;
 267   esac
 268 done
 269
 270 EXTRA_CFLAGS=""
 271 EXTRA_CXXFLAGS=""
 272 EXTRA_OBJCFLAGS=""
 273 EXTRA_LDFLAGS=""
 274
 275 debug_tcg="no"
 276 docs="auto"
 277 EXESUF=""
 278 prefix="/usr/local"
 279 qemu_suffix="qemu"
 280 softmmu="yes"
 281 linux_user=""
 282 bsd_user=""
 283 pie=""
 284 plugins="$default_feature"
 285 ninja=""
 286 bindir="bin"
 287 skip_meson=no
 288 vfio_user_server="disabled"
 289
 290 # The following Meson options are handled manually (still they
 291 # are included in the automatically generated help message)
 292
 293 # 1. Track which submodules are needed
 294 fdt="auto"
 295
 296 # 2. Automatically enable/disable other options
 297 tcg="auto"
 298 cfi="false"
 299
 300 # parse CC options second
 301 for opt do
 302   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 303   case "$opt" in
 304   --cross-prefix=*) cross_prefix="$optarg"
 305                     cross_compile="yes"
 306   ;;
 307   --cc=*) CC="$optarg"
 308   ;;
 309   --cxx=*) CXX="$optarg"
 310   ;;
 311   --objcc=*) objcc="$optarg"
 312   ;;
 313   --cpu=*) cpu="$optarg"
 314   ;;
 315   --extra-cflags=*)
 316     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 317     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 318     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 319     ;;
 320   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 321   ;;
 322   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 323   ;;
 324   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 325   ;;
 326   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 327   ;;
 328   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 329                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 330   ;;
 331   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 332                 eval "cross_cc_${cc_arch}=\$optarg"
 333   ;;
 334   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 335   ;;
 336   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 337                     eval "cross_prefix_${cc_arch}=\$optarg"
 338   ;;
 339   esac
 340 done
 341
 342 # Preferred compiler:
 343 #  ${CC} (if set)
 344 #  ${cross_prefix}gcc (if cross-prefix specified)
 345 #  system compiler
 346 if test -z "${CC}${cross_prefix}"; then
 347   cc="$host_cc"
 348 else
 349   cc="${CC-${cross_prefix}gcc}"
 350 fi
 351
 352 if test -z "${CXX}${cross_prefix}"; then
 353   cxx="c++"
 354 else
 355   cxx="${CXX-${cross_prefix}g++}"
 356 fi
 357
 358 # Preferred ObjC compiler:
 359 # $objcc (if set, i.e. via --objcc option)
 360 # ${cross_prefix}clang (if cross-prefix specified)
 361 # clang (if available)
 362 # $cc
 363 if test -z "${objcc}${cross_prefix}"; then
 364   if has clang; then
 365     objcc=clang
 366   else
 367     objcc="$cc"
 368   fi
 369 else
 370   objcc="${objcc-${cross_prefix}clang}"
 371 fi
 372
 373 ar="${AR-${cross_prefix}ar}"
 374 as="${AS-${cross_prefix}as}"
 375 ccas="${CCAS-$cc}"
 376 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 377 ld="${LD-${cross_prefix}ld}"
 378 ranlib="${RANLIB-${cross_prefix}ranlib}"
 379 nm="${NM-${cross_prefix}nm}"
 380 smbd="$SMBD"
 381 strip="${STRIP-${cross_prefix}strip}"
 382 widl="${WIDL-${cross_prefix}widl}"
 383 windres="${WINDRES-${cross_prefix}windres}"
 384 windmc="${WINDMC-${cross_prefix}windmc}"
 385 pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
 386 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 387
 388 # default flags for all hosts
 389 # We use -fwrapv to tell the compiler that we require a C dialect where
 390 # left shift of signed integers is well defined and has the expected
 391 # 2s-complement style results. (Both clang and gcc agree that it
 392 # provides these semantics.)
 393 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 394 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 395
 396 # Flags that are needed during configure but later taken care of by Meson
 397 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 398 CONFIGURE_LDFLAGS=
 399
 400
 401 check_define() {
 402 cat > $TMPC <<EOF
 403 #if !defined($1)
 404 #error $1 not defined
 405 #endif
 406 int main(void) { return 0; }
 407 EOF
 408   compile_object
 409 }
 410
 411 write_c_skeleton() {
 412     cat > $TMPC <<EOF
 413 int main(void) { return 0; }
 414 EOF
 415 }
 416
 417 if check_define __linux__ ; then
 418   targetos=linux
 419 elif check_define _WIN32 ; then
 420   targetos=windows
 421 elif check_define __OpenBSD__ ; then
 422   targetos=openbsd
 423 elif check_define __sun__ ; then
 424   targetos=sunos
 425 elif check_define __HAIKU__ ; then
 426   targetos=haiku
 427 elif check_define __FreeBSD__ ; then
 428   targetos=freebsd
 429 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 430   targetos=gnu/kfreebsd
 431 elif check_define __DragonFly__ ; then
 432   targetos=dragonfly
 433 elif check_define __NetBSD__; then
 434   targetos=netbsd
 435 elif check_define __APPLE__; then
 436   targetos=darwin
 437 else
 438   # This is a fatal error, but don't report it yet, because we
 439   # might be going to just print the --help text, or it might
 440   # be the result of a missing compiler.
 441   targetos=bogus
 442 fi
 443
 444 # OS specific
 445
 446 mingw32="no"
 447 bsd="no"
 448 linux="no"
 449 solaris="no"
 450 case $targetos in
 451 windows)
 452   mingw32="yes"
 453   plugins="no"
 454   pie="no"
 455 ;;
 456 gnu/kfreebsd)
 457   bsd="yes"
 458 ;;
 459 freebsd)
 460   bsd="yes"
 461   make="${MAKE-gmake}"
 462   # needed for kinfo_getvmmap(3) in libutil.h
 463 ;;
 464 dragonfly)
 465   bsd="yes"
 466   make="${MAKE-gmake}"
 467 ;;
 468 netbsd)
 469   bsd="yes"
 470   make="${MAKE-gmake}"
 471 ;;
 472 openbsd)
 473   bsd="yes"
 474   make="${MAKE-gmake}"
 475 ;;
 476 darwin)
 477   bsd="yes"
 478   darwin="yes"
 479   # Disable attempts to use ObjectiveC features in os/object.h since they
 480   # won't work when we're compiling with gcc as a C compiler.
 481   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 482 ;;
 483 sunos)
 484   solaris="yes"
 485   make="${MAKE-gmake}"
 486 # needed for CMSG_ macros in sys/socket.h
 487   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 488 # needed for TIOCWIN* defines in termios.h
 489   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 490 ;;
 491 haiku)
 492   pie="no"
 493   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 494 ;;
 495 linux)
 496   linux="yes"
 497 ;;
 498 esac
 499
 500 if test ! -z "$cpu" ; then
 501   # command line argument
 502   :
 503 elif check_define __i386__ ; then
 504   cpu="i386"
 505 elif check_define __x86_64__ ; then
 506   if check_define __ILP32__ ; then
 507     cpu="x32"
 508   else
 509     cpu="x86_64"
 510   fi
 511 elif check_define __sparc__ ; then
 512   if check_define __arch64__ ; then
 513     cpu="sparc64"
 514   else
 515     cpu="sparc"
 516   fi
 517 elif check_define _ARCH_PPC ; then
 518   if check_define _ARCH_PPC64 ; then
 519     if check_define _LITTLE_ENDIAN ; then
 520       cpu="ppc64le"
 521     else
 522       cpu="ppc64"
 523     fi
 524   else
 525     cpu="ppc"
 526   fi
 527 elif check_define __mips__ ; then
 528   cpu="mips"
 529 elif check_define __s390__ ; then
 530   if check_define __s390x__ ; then
 531     cpu="s390x"
 532   else
 533     cpu="s390"
 534   fi
 535 elif check_define __riscv ; then
 536   cpu="riscv"
 537 elif check_define __arm__ ; then
 538   cpu="arm"
 539 elif check_define __aarch64__ ; then
 540   cpu="aarch64"
 541 elif check_define __loongarch64 ; then
 542   cpu="loongarch64"
 543 else
 544   # Using uname is really broken, but it is just a fallback for architectures
 545   # that are going to use TCI anyway
 546   cpu=$(uname -m)
 547   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 548 fi
 549
 550 # Normalise host CPU name and set multilib cflags.  The canonicalization
 551 # isn't really necessary, because the architectures that we check for
 552 # should not hit the 'uname -m' case, but better safe than sorry.
 553 # Note that this case should only have supported host CPUs, not guests.
 554 case "$cpu" in
 555   armv*b|armv*l|arm)
 556     cpu="arm" ;;
 557
 558   i386|i486|i586|i686)
 559     cpu="i386"
 560     CPU_CFLAGS="-m32" ;;
 561   x32)
 562     cpu="x86_64"
 563     CPU_CFLAGS="-mx32" ;;
 564   x86_64|amd64)
 565     cpu="x86_64"
 566     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 567     # If we truly care, we should simply detect this case at
 568     # runtime and generate the fallback to serial emulation.
 569     CPU_CFLAGS="-m64 -mcx16" ;;
 570
 571   mips*)
 572     cpu="mips" ;;
 573
 574   ppc)
 575     CPU_CFLAGS="-m32" ;;
 576   ppc64)
 577     CPU_CFLAGS="-m64 -mbig-endian" ;;
 578   ppc64le)
 579     cpu="ppc64"
 580     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 581
 582   s390)
 583     CPU_CFLAGS="-m31" ;;
 584   s390x)
 585     CPU_CFLAGS="-m64" ;;
 586
 587   sparc|sun4[cdmuv])
 588     cpu="sparc"
 589     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 590   sparc64)
 591     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 592 esac
 593
 594 : ${make=${MAKE-make}}
 595
 596
 597 check_py_version() {
 598     # We require python >= 3.7.
 599     # NB: a True python conditional creates a non-zero return code (Failure)
 600     "$1" -c 'import sys; sys.exit(sys.version_info < (3,7))'
 601 }
 602
 603 python=
 604 pypi="enabled"
 605 first_python=
 606 if test -z "${PYTHON}"; then
 607     # A bare 'python' is traditionally python 2.x, but some distros
 608     # have it as python 3.x, so check in both places.
 609     for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7; do
 610         if has "$binary"; then
 611             python=$(command -v "$binary")
 612             if check_py_version "$python"; then
 613                 # This one is good.
 614                 first_python=
 615                 break
 616             else
 617                 first_python=$python
 618             fi
 619         fi
 620     done
 621 else
 622     # Same as above, but only check the environment variable.
 623     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 624     python=$(command -v "$PYTHON")
 625     if check_py_version "$python"; then
 626         # This one is good.
 627         first_python=
 628     else
 629         first_python=$first_python
 630     fi
 631 fi
 632
 633 # Check for ancillary tools used in testing
 634 genisoimage=
 635 for binary in genisoimage mkisofs
 636 do
 637     if has $binary
 638     then
 639         genisoimage=$(command -v "$binary")
 640         break
 641     fi
 642 done
 643
 644 if test "$mingw32" = "yes" ; then
 645   EXESUF=".exe"
 646   # MinGW needs -mthreads for TLS and macro _MT.
 647   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 648   prefix="/qemu"
 649   bindir=""
 650   qemu_suffix=""
 651 fi
 652
 653 werror=""
 654
 655 meson_option_build_array() {
 656   printf '['
 657   (if test "$targetos" = windows; then
 658     IFS=\;
 659   else
 660     IFS=:
 661   fi
 662   for e in $1; do
 663     printf '"""'
 664     # backslash escape any '\' and '"' characters
 665     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 666     printf '""",'
 667   done)
 668   printf ']\n'
 669 }
 670
 671 . "$source_path/scripts/meson-buildoptions.sh"
 672
 673 meson_options=
 674 meson_option_add() {
 675   meson_options="$meson_options $(quote_sh "$1")"
 676 }
 677 meson_option_parse() {
 678   meson_options="$meson_options $(_meson_option_parse "$@")"
 679   if test $? -eq 1; then
 680     echo "ERROR: unknown option $1"
 681     echo "Try '$0 --help' for more information"
 682     exit 1
 683   fi
 684 }
 685
 686 for opt do
 687   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 688   case "$opt" in
 689   --help|-h) show_help=yes
 690   ;;
 691   --version|-V) exec cat "$source_path/VERSION"
 692   ;;
 693   --prefix=*) prefix="$optarg"
 694   ;;
 695   --cross-prefix=*)
 696   ;;
 697   --cc=*)
 698   ;;
 699   --host-cc=*) host_cc="$optarg"
 700   ;;
 701   --cxx=*)
 702   ;;
 703   --objcc=*)
 704   ;;
 705   --make=*) make="$optarg"
 706   ;;
 707   --install=*)
 708   ;;
 709   --python=*) python="$optarg"
 710   ;;
 711   --skip-meson) skip_meson=yes
 712   ;;
 713   --ninja=*) ninja="$optarg"
 714   ;;
 715   --smbd=*) smbd="$optarg"
 716   ;;
 717   --extra-cflags=*)
 718   ;;
 719   --extra-cxxflags=*)
 720   ;;
 721   --extra-objcflags=*)
 722   ;;
 723   --extra-ldflags=*)
 724   ;;
 725   --cross-cc-*)
 726   ;;
 727   --cross-prefix-*)
 728   ;;
 729   --enable-debug-info) meson_option_add -Ddebug=true
 730   ;;
 731   --disable-debug-info) meson_option_add -Ddebug=false
 732   ;;
 733   --enable-docs) docs=enabled
 734   ;;
 735   --disable-docs) docs=disabled
 736   ;;
 737   --cpu=*)
 738   ;;
 739   --target-list=*) target_list="$optarg"
 740                    if test "$target_list_exclude"; then
 741                        error_exit "Can't mix --target-list with --target-list-exclude"
 742                    fi
 743   ;;
 744   --target-list-exclude=*) target_list_exclude="$optarg"
 745                    if test "$target_list"; then
 746                        error_exit "Can't mix --target-list-exclude with --target-list"
 747                    fi
 748   ;;
 749   --with-default-devices) meson_option_add -Ddefault_devices=true
 750   ;;
 751   --without-default-devices) meson_option_add -Ddefault_devices=false
 752   ;;
 753   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 754   ;;
 755   --with-devices-*) device_arch=${opt#--with-devices-};
 756                     device_arch=${device_arch%%=*}
 757                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 758                     if test -f "$cf"; then
 759                         device_archs="$device_archs $device_arch"
 760                         eval "devices_${device_arch}=\$optarg"
 761                     else
 762                         error_exit "File $cf does not exist"
 763                     fi
 764   ;;
 765   --without-default-features) # processed above
 766   ;;
 767   --static) static="yes"
 768   ;;
 769   --bindir=*) bindir="$optarg"
 770   ;;
 771   --with-suffix=*) qemu_suffix="$optarg"
 772   ;;
 773   --host=*|--build=*|\
 774   --disable-dependency-tracking|\
 775   --sbindir=*|--sharedstatedir=*|\
 776   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 777   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 778     # These switches are silently ignored, for compatibility with
 779     # autoconf-generated configure scripts. This allows QEMU's
 780     # configure to be used by RPM and similar macros that set
 781     # lots of directory switches by default.
 782   ;;
 783   --enable-debug-tcg) debug_tcg="yes"
 784   ;;
 785   --disable-debug-tcg) debug_tcg="no"
 786   ;;
 787   --enable-debug)
 788       # Enable debugging options that aren't excessively noisy
 789       debug_tcg="yes"
 790       meson_option_parse --enable-debug-graph-lock ""
 791       meson_option_parse --enable-debug-mutex ""
 792       meson_option_add -Doptimization=0
 793   ;;
 794   --disable-tcg) tcg="disabled"
 795                  plugins="no"
 796   ;;
 797   --enable-tcg) tcg="enabled"
 798   ;;
 799   --disable-system) softmmu="no"
 800   ;;
 801   --enable-system) softmmu="yes"
 802   ;;
 803   --disable-user)
 804       linux_user="no" ;
 805       bsd_user="no" ;
 806   ;;
 807   --enable-user) ;;
 808   --disable-linux-user) linux_user="no"
 809   ;;
 810   --enable-linux-user) linux_user="yes"
 811   ;;
 812   --disable-bsd-user) bsd_user="no"
 813   ;;
 814   --enable-bsd-user) bsd_user="yes"
 815   ;;
 816   --enable-pie) pie="yes"
 817   ;;
 818   --disable-pie) pie="no"
 819   ;;
 820   --enable-werror) werror="yes"
 821   ;;
 822   --disable-werror) werror="no"
 823   ;;
 824   --enable-cfi)
 825       cfi="true";
 826       meson_option_add -Db_lto=true
 827   ;;
 828   --disable-cfi) cfi="false"
 829   ;;
 830   --disable-fdt) fdt="disabled"
 831   ;;
 832   --enable-fdt) fdt="enabled"
 833   ;;
 834   --enable-fdt=git) fdt="internal"
 835   ;;
 836   --enable-fdt=*) fdt="$optarg"
 837   ;;
 838   --with-git=*) git="$optarg"
 839   ;;
 840   --with-git-submodules=*)
 841       git_submodules_action="$optarg"
 842   ;;
 843   --disable-pypi) pypi="disabled"
 844   ;;
 845   --enable-pypi) pypi="enabled"
 846   ;;
 847   --enable-plugins) if test "$mingw32" = "yes"; then
 848                         error_exit "TCG plugins not currently supported on Windows platforms"
 849                     else
 850                         plugins="yes"
 851                     fi
 852   ;;
 853   --disable-plugins) plugins="no"
 854   ;;
 855   --enable-containers) use_containers="yes"
 856   ;;
 857   --disable-containers) use_containers="no"
 858   ;;
 859   --gdb=*) gdb_bin="$optarg"
 860   ;;
 861   --enable-vfio-user-server) vfio_user_server="enabled"
 862   ;;
 863   --disable-vfio-user-server) vfio_user_server="disabled"
 864   ;;
 865   # everything else has the same name in configure and meson
 866   --*) meson_option_parse "$opt" "$optarg"
 867   ;;
 868   esac
 869 done
 870
 871 # test for any invalid configuration combinations
 872 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 873     error_exit "Can't enable plugins on non-TCG builds"
 874 fi
 875
 876 case $git_submodules_action in
 877     update|validate)
 878         if test ! -e "$source_path/.git"; then
 879             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 880             exit 1
 881         fi
 882     ;;
 883     ignore)
 884         if ! test -f "$source_path/ui/keycodemapdb/README"
 885         then
 886             echo
 887             echo "ERROR: missing GIT submodules"
 888             echo
 889             if test -e "$source_path/.git"; then
 890                 echo "--with-git-submodules=ignore specified but submodules were not"
 891                 echo "checked out.  Please initialize and update submodules."
 892             else
 893                 echo "This is not a GIT checkout but module content appears to"
 894                 echo "be missing. Do not use 'git archive' or GitHub download links"
 895                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 896                 echo "supported with source archives linked from:"
 897                 echo
 898                 echo "  https://www.qemu.org/download/#source"
 899                 echo
 900                 echo "Developers working with GIT can use scripts/archive-source.sh"
 901                 echo "if they need to create valid source archives."
 902             fi
 903             echo
 904             exit 1
 905         fi
 906     ;;
 907     *)
 908         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 909         exit 1
 910     ;;
 911 esac
 912
 913 default_target_list=""
 914 mak_wilds=""
 915
 916 if [ "$linux_user" != no ]; then
 917     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 918         linux_user=yes
 919     elif [ "$linux_user" = yes ]; then
 920         error_exit "linux-user not supported on this architecture"
 921     fi
 922 fi
 923 if [ "$bsd_user" != no ]; then
 924     if [ "$bsd_user" = "" ]; then
 925         test $targetos = freebsd && bsd_user=yes
 926     fi
 927     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 928         error_exit "bsd-user not supported on this host OS"
 929     fi
 930 fi
 931 if [ "$softmmu" = "yes" ]; then
 932     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 933 fi
 934 if [ "$linux_user" = "yes" ]; then
 935     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 936 fi
 937 if [ "$bsd_user" = "yes" ]; then
 938     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 939 fi
 940
 941 for config in $mak_wilds; do
 942     target="$(basename "$config" .mak)"
 943     if echo "$target_list_exclude" | grep -vq "$target"; then
 944         default_target_list="${default_target_list} $target"
 945     fi
 946 done
 947
 948 if test x"$show_help" = x"yes" ; then
 949 cat << EOF
 950
 951 Usage: configure [options]
 952 Options: [defaults in brackets after descriptions]
 953
 954 Standard options:
 955   --help                   print this message
 956   --prefix=PREFIX          install in PREFIX [$prefix]
 957   --target-list=LIST       set target list (default: build all)
 958 $(echo Available targets: $default_target_list | \
 959   fold -s -w 53 | sed -e 's/^/                           /')
 960   --target-list-exclude=LIST exclude a set of targets from the default target-list
 961
 962 Advanced options (experts only):
 963   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 964   --cc=CC                  use C compiler CC [$cc]
 965   --host-cc=CC             use C compiler CC [$host_cc] for code run at
 966                            build time
 967   --cxx=CXX                use C++ compiler CXX [$cxx]
 968   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
 969   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
 970   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
 971   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
 972   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
 973   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
 974   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
 975   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
 976   --make=MAKE              use specified make [$make]
 977   --python=PYTHON          use specified python [$python]
 978   --ninja=NINJA            use specified ninja [$ninja]
 979   --smbd=SMBD              use specified smbd [$smbd]
 980   --with-git=GIT           use specified git [$git]
 981   --with-git-submodules=update   update git submodules (default if .git dir exists)
 982   --with-git-submodules=validate fail if git submodules are not up to date
 983   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
 984   --static                 enable static build [$static]
 985   --bindir=PATH            install binaries in PATH
 986   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
 987   --without-default-features default all --enable-* options to "disabled"
 988   --without-default-devices  do not include any device that is not needed to
 989                            start the emulator (only use if you are including
 990                            desired devices in configs/devices/)
 991   --with-devices-ARCH=NAME override default configs/devices
 992   --enable-debug           enable common debug build options
 993   --disable-werror         disable compilation abort on warning
 994   --cpu=CPU                Build for host CPU [$cpu]
 995   --enable-plugins
 996                            enable plugins via shared library loading
 997   --disable-containers     don't use containers for cross-building
 998   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
 999 EOF
1000   meson_options_help
1001 cat << EOF
1002   system          all system emulation targets
1003   user            supported user emulation targets
1004   linux-user      all linux usermode emulation targets
1005   bsd-user        all BSD usermode emulation targets
1006   pie             Position Independent Executables
1007   debug-tcg       TCG debugging (default is disabled)
1008   debug-info      debugging information
1009
1010 NOTE: The object files are built at the place where configure is launched
1011 EOF
1012 exit 0
1013 fi
1014
1015 # Remove old dependency files to make sure that they get properly regenerated
1016 rm -f ./*/config-devices.mak.d
1017
1018 if test -z "$python"
1019 then
1020     # If first_python is set, there was a binary somewhere even though
1021     # it was not suitable.  Use it for the error message.
1022     if test -n "$first_python"; then
1023         error_exit "Cannot use '$first_python', Python >= 3.7 is required." \
1024             "Use --python=/path/to/python to specify a supported Python."
1025     else
1026         error_exit "Python not found. Use --python=/path/to/python"
1027     fi
1028 fi
1029
1030 if ! has "$make"
1031 then
1032     error_exit "GNU make ($make) not found"
1033 fi
1034
1035 if ! check_py_version "$python"; then
1036   error_exit "Cannot use '$python', Python >= 3.7 is required." \
1037              "Use --python=/path/to/python to specify a supported Python." \
1038              "Maybe try:" \
1039              "  openSUSE Leap 15.3+: zypper install python39" \
1040              "  CentOS 8: dnf install python38"
1041 fi
1042
1043 # Resolve PATH
1044 python="$(command -v "$python")"
1045
1046 # Create a Python virtual environment using our configured python.
1047 # The stdout of this script will be the location of a symlink that
1048 # points to the configured Python.
1049 # Entry point scripts for pip, meson, and sphinx are generated if those
1050 # packages are present.
1051
1052 # Defaults assumed for now:
1053 # - venv is cleared if it exists already;
1054 # - venv is allowed to use system packages;
1055 # - all setup can be performed offline;
1056 # - missing packages may be fetched from PyPI,
1057 #   unless --disable-pypi is passed.
1058 # - pip is not installed into the venv when possible,
1059 #   but ensurepip is called as a fallback when necessary.
1060
1061 echo "python determined to be '$python'"
1062 echo "python version: $($python --version)"
1063
1064 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
1065 if test "$?" -ne 0 ; then
1066     error_exit "python venv creation failed"
1067 fi
1068
1069 # Suppress writing compiled files
1070 python="$python -B"
1071 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
1072
1073 mkvenv_flags=""
1074 if test "$pypi" = "enabled" ; then
1075     mkvenv_flags="--online"
1076 fi
1077
1078 if ! $mkvenv ensure \
1079      $mkvenv_flags \
1080      --dir "${source_path}/python/wheels" \
1081      --diagnose "meson" \
1082      "meson>=0.63.0" ;
1083 then
1084     exit 1
1085 fi
1086
1087 # At this point, we expect Meson to be installed and available.
1088 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
1089 # We ignore PATH completely here: we want to use the venv's Meson
1090 # *exclusively*.
1091
1092 meson="$(cd pyvenv/bin; pwd)/meson"
1093
1094 # Conditionally ensure Sphinx is installed.
1095
1096 mkvenv_flags=""
1097 if test "$pypi" = "enabled" -a "$docs" = "enabled" ; then
1098     mkvenv_flags="--online"
1099 fi
1100
1101 if test "$docs" != "disabled" ; then
1102     if ! $mkvenv ensure \
1103          $mkvenv_flags \
1104          --diagnose "sphinx-build" \
1105          "sphinx>=1.6.0" "sphinx-rtd-theme>=0.5.0";
1106     then
1107         if test "$docs" = "enabled" ; then
1108             exit 1
1109         fi
1110         echo "Sphinx not found/usable, disabling docs."
1111         docs=disabled
1112     else
1113         docs=enabled
1114     fi
1115 fi
1116
1117 # Probe for ninja
1118
1119 if test -z "$ninja"; then
1120     for c in ninja ninja-build samu; do
1121         if has $c; then
1122             ninja=$(command -v "$c")
1123             break
1124         fi
1125     done
1126     if test -z "$ninja"; then
1127       error_exit "Cannot find Ninja"
1128     fi
1129 fi
1130
1131 # Check that the C compiler works. Doing this here before testing
1132 # the host CPU ensures that we had a valid CC to autodetect the
1133 # $cpu var (and we should bail right here if that's not the case).
1134 # It also allows the help message to be printed without a CC.
1135 write_c_skeleton;
1136 if compile_object ; then
1137   : C compiler works ok
1138 else
1139     error_exit "\"$cc\" either does not exist or does not work"
1140 fi
1141 if ! compile_prog ; then
1142     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1143 fi
1144
1145 # Consult white-list to determine whether to enable werror
1146 # by default.  Only enable by default for git builds
1147 if test -z "$werror" ; then
1148     if test "$git_submodules_action" != "ignore" && \
1149         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1150         werror="yes"
1151     else
1152         werror="no"
1153     fi
1154 fi
1155
1156 if test "$targetos" = "bogus"; then
1157     # Now that we know that we're not printing the help and that
1158     # the compiler works (so the results of the check_defines we used
1159     # to identify the OS are reliable), if we didn't recognize the
1160     # host OS we should stop now.
1161     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1162 fi
1163
1164 # Check whether the compiler matches our minimum requirements:
1165 cat > $TMPC << EOF
1166 #if defined(__clang_major__) && defined(__clang_minor__)
1167 # ifdef __apple_build_version__
1168 #  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1169 #   error You need at least XCode Clang v12.0 to compile QEMU
1170 #  endif
1171 # else
1172 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1173 #   error You need at least Clang v10.0 to compile QEMU
1174 #  endif
1175 # endif
1176 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1177 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1178 #  error You need at least GCC v7.4.0 to compile QEMU
1179 # endif
1180 #else
1181 # error You either need GCC or Clang to compiler QEMU
1182 #endif
1183 int main (void) { return 0; }
1184 EOF
1185 if ! compile_prog "" "" ; then
1186     error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1187 fi
1188
1189 # Accumulate -Wfoo and -Wno-bar separately.
1190 # We will list all of the enable flags first, and the disable flags second.
1191 # Note that we do not add -Werror, because that would enable it for all
1192 # configure tests. If a configure test failed due to -Werror this would
1193 # just silently disable some features, so it's too error prone.
1194
1195 warn_flags=
1196 add_to warn_flags -Wundef
1197 add_to warn_flags -Wwrite-strings
1198 add_to warn_flags -Wmissing-prototypes
1199 add_to warn_flags -Wstrict-prototypes
1200 add_to warn_flags -Wredundant-decls
1201 add_to warn_flags -Wold-style-declaration
1202 add_to warn_flags -Wold-style-definition
1203 add_to warn_flags -Wtype-limits
1204 add_to warn_flags -Wformat-security
1205 add_to warn_flags -Wformat-y2k
1206 add_to warn_flags -Winit-self
1207 add_to warn_flags -Wignored-qualifiers
1208 add_to warn_flags -Wempty-body
1209 add_to warn_flags -Wnested-externs
1210 add_to warn_flags -Wendif-labels
1211 add_to warn_flags -Wexpansion-to-defined
1212 add_to warn_flags -Wimplicit-fallthrough=2
1213 add_to warn_flags -Wmissing-format-attribute
1214
1215 if test "$targetos" != "darwin"; then
1216     add_to warn_flags -Wthread-safety
1217 fi
1218
1219 nowarn_flags=
1220 add_to nowarn_flags -Wno-initializer-overrides
1221 add_to nowarn_flags -Wno-missing-include-dirs
1222 add_to nowarn_flags -Wno-shift-negative-value
1223 add_to nowarn_flags -Wno-string-plus-int
1224 add_to nowarn_flags -Wno-typedef-redefinition
1225 add_to nowarn_flags -Wno-tautological-type-limit-compare
1226 add_to nowarn_flags -Wno-psabi
1227 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1228
1229 gcc_flags="$warn_flags $nowarn_flags"
1230
1231 cc_has_warning_flag() {
1232     write_c_skeleton;
1233
1234     # Use the positive sense of the flag when testing for -Wno-wombat
1235     # support (gcc will happily accept the -Wno- form of unknown
1236     # warning options).
1237     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1238     compile_prog "-Werror $optflag" ""
1239 }
1240
1241 objcc_has_warning_flag() {
1242     cat > $TMPM <<EOF
1243 int main(void) { return 0; }
1244 EOF
1245
1246     # Use the positive sense of the flag when testing for -Wno-wombat
1247     # support (gcc will happily accept the -Wno- form of unknown
1248     # warning options).
1249     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1250     do_objc -Werror $optflag \
1251       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1252       -o $TMPE $TMPM
1253 }
1254
1255 for flag in $gcc_flags; do
1256     if cc_has_warning_flag $flag ; then
1257         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1258     fi
1259     if objcc_has_warning_flag $flag ; then
1260         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1261     fi
1262 done
1263
1264 if test "$static" = "yes" ; then
1265   if test "$plugins" = "yes"; then
1266     error_exit "static and plugins are mutually incompatible"
1267   else
1268     plugins="no"
1269   fi
1270 fi
1271 test "$plugins" = "" && plugins=yes
1272
1273 cat > $TMPC << EOF
1274
1275 #ifdef __linux__
1276 #  define THREAD __thread
1277 #else
1278 #  define THREAD
1279 #endif
1280 static THREAD int tls_var;
1281 int main(void) { return tls_var; }
1282 EOF
1283
1284 # Meson currently only handles pie as a boolean for now so if we have
1285 # explicitly disabled PIE we need to extend our cflags because it wont.
1286 if test "$static" = "yes"; then
1287   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1288     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1289     pie="yes"
1290   elif test "$pie" = "yes"; then
1291     error_exit "-static-pie not available due to missing toolchain support"
1292   else
1293     pie="no"
1294     QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
1295   fi
1296 elif test "$pie" = "no"; then
1297   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1298     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1299     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1300     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1301   fi
1302 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1303   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1304   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1305   pie="yes"
1306 elif test "$pie" = "yes"; then
1307   error_exit "PIE not available due to missing toolchain support"
1308 else
1309   echo "Disabling PIE due to missing toolchain support"
1310   pie="no"
1311 fi
1312
1313 ##########################################
1314 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1315 # use i686 as default anyway, but for those that don't, an explicit
1316 # specification is necessary
1317
1318 if test "$cpu" = "i386"; then
1319   cat > $TMPC << EOF
1320 static int sfaa(int *ptr)
1321 {
1322   return __sync_fetch_and_and(ptr, 0);
1323 }
1324
1325 int main(void)
1326 {
1327   int val = 42;
1328   val = __sync_val_compare_and_swap(&val, 0, 1);
1329   sfaa(&val);
1330   return val;
1331 }
1332 EOF
1333   if ! compile_prog "" "" ; then
1334     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1335   fi
1336 fi
1337
1338 if test -z "${target_list+xxx}" ; then
1339     default_targets=yes
1340     for target in $default_target_list; do
1341         target_list="$target_list $target"
1342     done
1343     target_list="${target_list# }"
1344 else
1345     default_targets=no
1346     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1347     for target in $target_list; do
1348         # Check that we recognised the target name; this allows a more
1349         # friendly error message than if we let it fall through.
1350         case " $default_target_list " in
1351             *" $target "*)
1352                 ;;
1353             *)
1354                 error_exit "Unknown target name '$target'"
1355                 ;;
1356         esac
1357     done
1358 fi
1359
1360 # see if system emulation was really requested
1361 case " $target_list " in
1362   *"-softmmu "*) softmmu=yes
1363   ;;
1364   *) softmmu=no
1365   ;;
1366 esac
1367
1368 if test "$tcg" = "auto"; then
1369   if test -z "$target_list"; then
1370     tcg="disabled"
1371   else
1372     tcg="enabled"
1373   fi
1374 fi
1375
1376 if test "$tcg" = "enabled"; then
1377     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1378     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1379 fi
1380
1381 ##########################################
1382 # big/little endian test
1383 cat > $TMPC << EOF
1384 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1385 # error LITTLE
1386 #endif
1387 int main(void) { return 0; }
1388 EOF
1389
1390 if ! compile_prog ; then
1391   bigendian="no"
1392 else
1393   cat > $TMPC << EOF
1394 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1395 # error BIG
1396 #endif
1397 int main(void) { return 0; }
1398 EOF
1399
1400   if ! compile_prog ; then
1401     bigendian="yes"
1402   else
1403     echo big/little test failed
1404     exit 1
1405   fi
1406 fi
1407
1408 ##########################################
1409 # fdt probe
1410
1411 case "$fdt" in
1412   auto | enabled | internal)
1413     # Simpler to always update submodule, even if not needed.
1414     git_submodules="${git_submodules} dtc"
1415     ;;
1416 esac
1417
1418 ########################################
1419 # check if ccache is interfering with
1420 # semantic analysis of macros
1421
1422 unset CCACHE_CPP2
1423 ccache_cpp2=no
1424 cat > $TMPC << EOF
1425 static const int Z = 1;
1426 #define fn() ({ Z; })
1427 #define TAUT(X) ((X) == Z)
1428 #define PAREN(X, Y) (X == Y)
1429 #define ID(X) (X)
1430 int main(void)
1431 {
1432     int x = 0, y = 0;
1433     x = ID(x);
1434     x = fn();
1435     fn();
1436     if (PAREN(x, y)) return 0;
1437     if (TAUT(Z)) return 0;
1438     return 0;
1439 }
1440 EOF
1441
1442 if ! compile_object "-Werror"; then
1443     ccache_cpp2=yes
1444 fi
1445
1446 ##########################################
1447 # functions to probe cross compilers
1448
1449 container="no"
1450 runc=""
1451 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1452     case $($python "$source_path"/tests/docker/docker.py probe) in
1453         *docker) container=docker ;;
1454         podman) container=podman ;;
1455         no) container=no ;;
1456     esac
1457     if test "$container" != "no"; then
1458         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1459         runc=$($python "$source_path"/tests/docker/docker.py probe)
1460     fi
1461 fi
1462
1463 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1464 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1465 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1466 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1467 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1468 : ${cross_prefix_armeb="$cross_prefix_arm"}
1469 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1470 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1471 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1472 : ${cross_prefix_i386="i686-linux-gnu-"}
1473 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1474 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1475 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1476 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1477 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1478 : ${cross_prefix_mips="mips-linux-gnu-"}
1479 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1480 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1481 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1482 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1483 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1484 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1485 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1486 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1487 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1488 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1489
1490 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1491 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1492 : ${cross_cc_armeb="$cross_cc_arm"}
1493 : ${cross_cc_cflags_armeb="-mbig-endian"}
1494 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1495 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1496 : ${cross_cc_cflags_i386="-m32"}
1497 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1498 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1499 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1500 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1501 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1502 : ${cross_cc_sparc="$cross_cc_sparc64"}
1503 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1504 : ${cross_cc_cflags_x86_64="-m64"}
1505
1506 compute_target_variable() {
1507   eval "$2="
1508   if eval test -n "\"\${cross_prefix_$1}\""; then
1509     if eval has "\"\${cross_prefix_$1}\$3\""; then
1510       eval "$2=\"\${cross_prefix_$1}\$3\""
1511     fi
1512   fi
1513 }
1514
1515 have_target() {
1516   for i; do
1517     case " $target_list " in
1518       *" $i "*) return 0;;
1519       *) ;;
1520     esac
1521   done
1522   return 1
1523 }
1524
1525 # probe_target_compiler TARGET
1526 #
1527 # Look for a compiler for the given target, either native or cross.
1528 # Set variables target_* if a compiler is found, and container_cross_*
1529 # if a Docker-based cross-compiler image is known for the target.
1530 # Set got_cross_cc to yes/no depending on whether a non-container-based
1531 # compiler was found.
1532 #
1533 # If TARGET is a user-mode emulation target, also set build_static to
1534 # "y" if static linking is possible.
1535 #
1536 probe_target_compiler() {
1537   # reset all output variables
1538   got_cross_cc=no
1539   container_image=
1540   container_hosts=
1541   container_cross_cc=
1542   container_cross_ar=
1543   container_cross_as=
1544   container_cross_ld=
1545   container_cross_nm=
1546   container_cross_objcopy=
1547   container_cross_ranlib=
1548   container_cross_strip=
1549
1550   # We shall skip configuring the target compiler if the user didn't
1551   # bother enabling an appropriate guest. This avoids building
1552   # extraneous firmware images and tests.
1553   if test "${target_list#*$1}" = "$1"; then
1554       return 1
1555   fi
1556
1557   target_arch=${1%%-*}
1558   case $target_arch in
1559     aarch64) container_hosts="x86_64 aarch64" ;;
1560     alpha) container_hosts=x86_64 ;;
1561     arm) container_hosts="x86_64 aarch64" ;;
1562     cris) container_hosts=x86_64 ;;
1563     hexagon) container_hosts=x86_64 ;;
1564     hppa) container_hosts=x86_64 ;;
1565     i386) container_hosts=x86_64 ;;
1566     loongarch64) container_hosts=x86_64 ;;
1567     m68k) container_hosts=x86_64 ;;
1568     microblaze) container_hosts=x86_64 ;;
1569     mips64el) container_hosts=x86_64 ;;
1570     mips64) container_hosts=x86_64 ;;
1571     mipsel) container_hosts=x86_64 ;;
1572     mips) container_hosts=x86_64 ;;
1573     nios2) container_hosts=x86_64 ;;
1574     ppc) container_hosts=x86_64 ;;
1575     ppc64|ppc64le) container_hosts=x86_64 ;;
1576     riscv64) container_hosts=x86_64 ;;
1577     s390x) container_hosts=x86_64 ;;
1578     sh4) container_hosts=x86_64 ;;
1579     sparc64) container_hosts=x86_64 ;;
1580     tricore) container_hosts=x86_64 ;;
1581     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1582     xtensa*) container_hosts=x86_64 ;;
1583   esac
1584
1585   for host in $container_hosts; do
1586     test "$container" != no || continue
1587     test "$host" = "$cpu" || continue
1588     case $target_arch in
1589       aarch64)
1590         # We don't have any bigendian build tools so we only use this for AArch64
1591         container_image=debian-arm64-cross
1592         container_cross_prefix=aarch64-linux-gnu-
1593         container_cross_cc=${container_cross_prefix}gcc-10
1594         ;;
1595       alpha)
1596         container_image=debian-alpha-cross
1597         container_cross_prefix=alpha-linux-gnu-
1598         ;;
1599       arm)
1600         # We don't have any bigendian build tools so we only use this for ARM
1601         container_image=debian-armhf-cross
1602         container_cross_prefix=arm-linux-gnueabihf-
1603         ;;
1604       cris)
1605         container_image=fedora-cris-cross
1606         container_cross_prefix=cris-linux-gnu-
1607         ;;
1608       hexagon)
1609         container_image=debian-hexagon-cross
1610         container_cross_prefix=hexagon-unknown-linux-musl-
1611         container_cross_cc=${container_cross_prefix}clang
1612         ;;
1613       hppa)
1614         container_image=debian-hppa-cross
1615         container_cross_prefix=hppa-linux-gnu-
1616         ;;
1617       i386)
1618         container_image=fedora-i386-cross
1619         container_cross_prefix=
1620         ;;
1621       loongarch64)
1622         container_image=debian-loongarch-cross
1623         container_cross_prefix=loongarch64-unknown-linux-gnu-
1624         ;;
1625       m68k)
1626         container_image=debian-m68k-cross
1627         container_cross_prefix=m68k-linux-gnu-
1628         ;;
1629       microblaze)
1630         container_image=debian-microblaze-cross
1631         container_cross_prefix=microblaze-linux-musl-
1632         ;;
1633       mips64el)
1634         container_image=debian-mips64el-cross
1635         container_cross_prefix=mips64el-linux-gnuabi64-
1636         ;;
1637       mips64)
1638         container_image=debian-mips64-cross
1639         container_cross_prefix=mips64-linux-gnuabi64-
1640         ;;
1641       mipsel)
1642         container_image=debian-mipsel-cross
1643         container_cross_prefix=mipsel-linux-gnu-
1644         ;;
1645       mips)
1646         container_image=debian-mips-cross
1647         container_cross_prefix=mips-linux-gnu-
1648         ;;
1649       nios2)
1650         container_image=debian-nios2-cross
1651         container_cross_prefix=nios2-linux-gnu-
1652         ;;
1653       ppc)
1654         container_image=debian-powerpc-test-cross
1655         container_cross_prefix=powerpc-linux-gnu-
1656         container_cross_cc=${container_cross_prefix}gcc-10
1657         ;;
1658       ppc64|ppc64le)
1659         container_image=debian-powerpc-test-cross
1660         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1661         container_cross_cc=${container_cross_prefix}gcc-10
1662         ;;
1663       riscv64)
1664         container_image=debian-riscv64-test-cross
1665         container_cross_prefix=riscv64-linux-gnu-
1666         ;;
1667       s390x)
1668         container_image=debian-s390x-cross
1669         container_cross_prefix=s390x-linux-gnu-
1670         ;;
1671       sh4)
1672         container_image=debian-sh4-cross
1673         container_cross_prefix=sh4-linux-gnu-
1674         ;;
1675       sparc64)
1676         container_image=debian-sparc64-cross
1677         container_cross_prefix=sparc64-linux-gnu-
1678         ;;
1679       tricore)
1680         container_image=debian-tricore-cross
1681         container_cross_prefix=tricore-
1682         container_cross_as=tricore-as
1683         container_cross_ld=tricore-ld
1684         break
1685         ;;
1686       x86_64)
1687         container_image=debian-amd64-cross
1688         container_cross_prefix=x86_64-linux-gnu-
1689         ;;
1690       xtensa*)
1691         container_hosts=x86_64
1692         container_image=debian-xtensa-cross
1693
1694         # default to the dc232b cpu
1695         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1696         ;;
1697     esac
1698     : ${container_cross_cc:=${container_cross_prefix}gcc}
1699     : ${container_cross_ar:=${container_cross_prefix}ar}
1700     : ${container_cross_as:=${container_cross_prefix}as}
1701     : ${container_cross_ld:=${container_cross_prefix}ld}
1702     : ${container_cross_nm:=${container_cross_prefix}nm}
1703     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1704     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1705     : ${container_cross_strip:=${container_cross_prefix}strip}
1706   done
1707
1708   try=cross
1709   case "$target_arch:$cpu" in
1710     aarch64_be:aarch64 | \
1711     armeb:arm | \
1712     i386:x86_64 | \
1713     mips*:mips64 | \
1714     ppc*:ppc64 | \
1715     sparc:sparc64 | \
1716     "$cpu:$cpu")
1717       try='native cross' ;;
1718   esac
1719   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1720   for thistry in $try; do
1721     case $thistry in
1722     native)
1723       target_cc=$cc
1724       target_ccas=$ccas
1725       target_ar=$ar
1726       target_as=$as
1727       target_ld=$ld
1728       target_nm=$nm
1729       target_objcopy=$objcopy
1730       target_ranlib=$ranlib
1731       target_strip=$strip
1732       ;;
1733     cross)
1734       target_cc=
1735       if eval test -n "\"\${cross_cc_$target_arch}\""; then
1736         if eval has "\"\${cross_cc_$target_arch}\""; then
1737           eval "target_cc=\"\${cross_cc_$target_arch}\""
1738         fi
1739       else
1740         compute_target_variable $target_arch target_cc gcc
1741       fi
1742       target_ccas=$target_cc
1743       compute_target_variable $target_arch target_ar ar
1744       compute_target_variable $target_arch target_as as
1745       compute_target_variable $target_arch target_ld ld
1746       compute_target_variable $target_arch target_nm nm
1747       compute_target_variable $target_arch target_objcopy objcopy
1748       compute_target_variable $target_arch target_ranlib ranlib
1749       compute_target_variable $target_arch target_strip strip
1750       ;;
1751     esac
1752
1753     if test -n "$target_cc"; then
1754       case $target_arch in
1755         i386|x86_64)
1756           if $target_cc --version | grep -qi "clang"; then
1757             continue
1758           fi
1759           ;;
1760       esac
1761     elif test -n "$target_as" && test -n "$target_ld"; then
1762       # Special handling for assembler only targets
1763       case $target in
1764         tricore-softmmu)
1765           build_static=
1766           got_cross_cc=yes
1767           break
1768           ;;
1769         *)
1770           continue
1771           ;;
1772       esac
1773     else
1774       continue
1775     fi
1776
1777     write_c_skeleton
1778     case $1 in
1779       *-softmmu)
1780         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1781           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1782           got_cross_cc=yes
1783           break
1784         fi
1785         ;;
1786       *)
1787         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1788           build_static=y
1789           got_cross_cc=yes
1790           break
1791         fi
1792         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1793           build_static=
1794           got_cross_cc=yes
1795           break
1796         fi
1797         ;;
1798     esac
1799   done
1800   if test $got_cross_cc != yes; then
1801     build_static=
1802     target_cc=
1803     target_ccas=
1804     target_ar=
1805     target_as=
1806     target_ld=
1807     target_nm=
1808     target_objcopy=
1809     target_ranlib=
1810     target_strip=
1811   fi
1812   test -n "$target_cc"
1813 }
1814
1815 write_target_makefile() {
1816   echo "EXTRA_CFLAGS=$target_cflags"
1817   if test -z "$target_cc" && test -z "$target_as"; then
1818     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1819     echo "$1: docker-image-$container_image" >> Makefile.prereqs
1820     if test -n "$container_cross_cc"; then
1821       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1822       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1823     fi
1824     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1825     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1826     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1827     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1828     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1829     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1830     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1831   else
1832     if test -n "$target_cc"; then
1833       echo "CC=$target_cc"
1834       echo "CCAS=$target_ccas"
1835     fi
1836     if test -n "$target_ar"; then
1837       echo "AR=$target_ar"
1838     fi
1839     if test -n "$target_as"; then
1840       echo "AS=$target_as"
1841     fi
1842     if test -n "$target_ld"; then
1843       echo "LD=$target_ld"
1844     fi
1845     if test -n "$target_nm"; then
1846       echo "NM=$target_nm"
1847     fi
1848     if test -n "$target_objcopy"; then
1849       echo "OBJCOPY=$target_objcopy"
1850     fi
1851     if test -n "$target_ranlib"; then
1852       echo "RANLIB=$target_ranlib"
1853     fi
1854     if test -n "$target_strip"; then
1855       echo "STRIP=$target_strip"
1856     fi
1857   fi
1858 }
1859
1860 ##########################################
1861 # check for vfio_user_server
1862
1863 case "$vfio_user_server" in
1864   enabled )
1865     if test "$git_submodules_action" != "ignore"; then
1866       git_submodules="${git_submodules} subprojects/libvfio-user"
1867     fi
1868     ;;
1869 esac
1870
1871 #######################################
1872 # cross-compiled firmware targets
1873
1874 # Set up build tree symlinks that point back into the source tree
1875 # (these can be both files and directories).
1876 # Caution: avoid adding files or directories here using wildcards. This
1877 # will result in problems later if a new file matching the wildcard is
1878 # added to the source tree -- nothing will cause configure to be rerun
1879 # so the build tree will be missing the link back to the new file, and
1880 # tests might fail. Prefer to keep the relevant files in their own
1881 # directory and symlink the directory instead.
1882 LINKS="Makefile"
1883 LINKS="$LINKS docs/config"
1884 LINKS="$LINKS pc-bios/optionrom/Makefile"
1885 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1886 LINKS="$LINKS pc-bios/vof/Makefile"
1887 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1888 LINKS="$LINKS tests/avocado tests/data"
1889 LINKS="$LINKS tests/qemu-iotests/check"
1890 LINKS="$LINKS python"
1891 LINKS="$LINKS contrib/plugins/Makefile "
1892 for f in $LINKS ; do
1893     if [ -e "$source_path/$f" ]; then
1894         mkdir -p "$(dirname ./"$f")"
1895         symlink "$source_path/$f" "$f"
1896     fi
1897 done
1898
1899 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1900
1901 # Mac OS X ships with a broken assembler
1902 roms=
1903 if have_target i386-softmmu x86_64-softmmu && \
1904         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1905         test "$targetos" != "haiku" && \
1906         probe_target_compiler i386-softmmu; then
1907     roms="pc-bios/optionrom"
1908     config_mak=pc-bios/optionrom/config.mak
1909     echo "# Automatically generated by configure - do not modify" > $config_mak
1910     echo "TOPSRC_DIR=$source_path" >> $config_mak
1911     write_target_makefile >> $config_mak
1912 fi
1913
1914 if have_target ppc-softmmu ppc64-softmmu && \
1915         probe_target_compiler ppc-softmmu; then
1916     roms="$roms pc-bios/vof"
1917     config_mak=pc-bios/vof/config.mak
1918     echo "# Automatically generated by configure - do not modify" > $config_mak
1919     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1920     write_target_makefile >> $config_mak
1921 fi
1922
1923 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1924 # (which is the lowest architecture level that Clang supports)
1925 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
1926   write_c_skeleton
1927   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1928   has_z900=$?
1929   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1930     if [ $has_z900 != 0 ]; then
1931       echo "WARNING: Your compiler does not support the z900!"
1932       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1933     fi
1934     roms="$roms pc-bios/s390-ccw"
1935     config_mak=pc-bios/s390-ccw/config-host.mak
1936     echo "# Automatically generated by configure - do not modify" > $config_mak
1937     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1938     write_target_makefile >> $config_mak
1939     # SLOF is required for building the s390-ccw firmware on s390x,
1940     # since it is using the libnet code from SLOF for network booting.
1941     git_submodules="${git_submodules} roms/SLOF"
1942   fi
1943 fi
1944
1945 #######################################
1946 # generate config-host.mak
1947
1948 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
1949     exit 1
1950 fi
1951
1952 config_host_mak="config-host.mak"
1953
1954 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1955 echo >> $config_host_mak
1956
1957 echo all: >> $config_host_mak
1958 echo "GIT=$git" >> $config_host_mak
1959 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
1960 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
1961
1962 if test "$debug_tcg" = "yes" ; then
1963   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
1964 fi
1965 if test "$mingw32" = "yes" ; then
1966   echo "CONFIG_WIN32=y" >> $config_host_mak
1967   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
1968   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
1969   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
1970 else
1971   echo "CONFIG_POSIX=y" >> $config_host_mak
1972 fi
1973
1974 if test "$linux" = "yes" ; then
1975   echo "CONFIG_LINUX=y" >> $config_host_mak
1976 fi
1977
1978 if test "$darwin" = "yes" ; then
1979   echo "CONFIG_DARWIN=y" >> $config_host_mak
1980 fi
1981
1982 if test "$solaris" = "yes" ; then
1983   echo "CONFIG_SOLARIS=y" >> $config_host_mak
1984 fi
1985 echo "SRC_PATH=$source_path" >> $config_host_mak
1986 echo "TARGET_DIRS=$target_list" >> $config_host_mak
1987
1988 # XXX: suppress that
1989 if [ "$bsd" = "yes" ] ; then
1990   echo "CONFIG_BSD=y" >> $config_host_mak
1991 fi
1992
1993 if test "$plugins" = "yes" ; then
1994     echo "CONFIG_PLUGIN=y" >> $config_host_mak
1995 fi
1996
1997 if test -n "$gdb_bin"; then
1998     gdb_version=$($gdb_bin --version | head -n 1)
1999     if version_ge ${gdb_version##* } 9.1; then
2000         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2001         gdb_arches=$("$source_path/scripts/probe-gdb-support.py" $gdb_bin)
2002     else
2003         gdb_bin=""
2004     fi
2005 fi
2006
2007 if test "$container" != no; then
2008     echo "ENGINE=$container" >> $config_host_mak
2009     echo "RUNC=$runc" >> $config_host_mak
2010 fi
2011 echo "ROMS=$roms" >> $config_host_mak
2012 echo "MAKE=$make" >> $config_host_mak
2013 echo "PYTHON=$python" >> $config_host_mak
2014 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2015 echo "MESON=$meson" >> $config_host_mak
2016 echo "NINJA=$ninja" >> $config_host_mak
2017 echo "PKG_CONFIG=${pkg_config}" >> $config_host_mak
2018 echo "CC=$cc" >> $config_host_mak
2019 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2020 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2021 echo "EXESUF=$EXESUF" >> $config_host_mak
2022
2023 # use included Linux headers
2024 if test "$linux" = "yes" ; then
2025   mkdir -p linux-headers
2026   case "$cpu" in
2027   i386|x86_64)
2028     linux_arch=x86
2029     ;;
2030   ppc|ppc64)
2031     linux_arch=powerpc
2032     ;;
2033   s390x)
2034     linux_arch=s390
2035     ;;
2036   aarch64)
2037     linux_arch=arm64
2038     ;;
2039   loongarch*)
2040     linux_arch=loongarch
2041     ;;
2042   mips64)
2043     linux_arch=mips
2044     ;;
2045   *)
2046     # For most CPUs the kernel architecture name and QEMU CPU name match.
2047     linux_arch="$cpu"
2048     ;;
2049   esac
2050     # For non-KVM architectures we will not have asm headers
2051     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2052       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2053     fi
2054 fi
2055
2056 for target in $target_list; do
2057     target_dir="$target"
2058     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2059     mkdir -p "$target_dir"
2060     case $target in
2061         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2062         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2063     esac
2064 done
2065
2066 if test "$default_targets" = "yes"; then
2067   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2068 fi
2069
2070 if test "$ccache_cpp2" = "yes"; then
2071   echo "export CCACHE_CPP2=y" >> $config_host_mak
2072 fi
2073
2074 # tests/tcg configuration
2075 (config_host_mak=tests/tcg/config-host.mak
2076 mkdir -p tests/tcg
2077 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2078 echo "SRC_PATH=$source_path" >> $config_host_mak
2079 echo "HOST_CC=$host_cc" >> $config_host_mak
2080
2081 # versioned checked in the main config_host.mak above
2082 if test -n "$gdb_bin"; then
2083     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2084 fi
2085 if test "$plugins" = "yes" ; then
2086     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2087 fi
2088
2089 tcg_tests_targets=
2090 for target in $target_list; do
2091   arch=${target%%-*}
2092
2093   case $target in
2094     xtensa*-linux-user)
2095       # the toolchain is not complete with headers, only build softmmu tests
2096       continue
2097       ;;
2098     *-softmmu)
2099       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2100       qemu="qemu-system-$arch"
2101       ;;
2102     *-linux-user|*-bsd-user)
2103       qemu="qemu-$arch"
2104       ;;
2105   esac
2106
2107   if probe_target_compiler $target || test -n "$container_image"; then
2108       test -n "$container_image" && build_static=y
2109       mkdir -p "tests/tcg/$target"
2110       config_target_mak=tests/tcg/$target/config-target.mak
2111       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2112       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2113       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2114       echo "TARGET=$target" >> "$config_target_mak"
2115       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2116       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2117       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2118
2119       # will GDB work with these binaries?
2120       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
2121           echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
2122       fi
2123
2124       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2125       tcg_tests_targets="$tcg_tests_targets $target"
2126   fi
2127 done
2128
2129 if test "$tcg" = "enabled"; then
2130     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2131 fi
2132 )
2133
2134 if test "$skip_meson" = no; then
2135   cross="config-meson.cross.new"
2136   meson_quote() {
2137     test $# = 0 && return
2138     echo "'$(echo $* | sed "s/ /','/g")'"
2139   }
2140
2141   echo "# Automatically generated by configure - do not modify" > $cross
2142   echo "[properties]" >> $cross
2143
2144   # unroll any custom device configs
2145   for a in $device_archs; do
2146       eval "c=\$devices_${a}"
2147       echo "${a}-softmmu = '$c'" >> $cross
2148   done
2149
2150   echo "[built-in options]" >> $cross
2151   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2152   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2153   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2154   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2155   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2156   echo "[binaries]" >> $cross
2157   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2158   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2159   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2160   echo "ar = [$(meson_quote $ar)]" >> $cross
2161   echo "nm = [$(meson_quote $nm)]" >> $cross
2162   echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
2163   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2164   if has $sdl2_config; then
2165     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2166   fi
2167   echo "strip = [$(meson_quote $strip)]" >> $cross
2168   echo "widl = [$(meson_quote $widl)]" >> $cross
2169   echo "windres = [$(meson_quote $windres)]" >> $cross
2170   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2171   if test "$cross_compile" = "yes"; then
2172     cross_arg="--cross-file config-meson.cross"
2173     echo "[host_machine]" >> $cross
2174     echo "system = '$targetos'" >> $cross
2175     case "$cpu" in
2176         i386)
2177             echo "cpu_family = 'x86'" >> $cross
2178             ;;
2179         *)
2180             echo "cpu_family = '$cpu'" >> $cross
2181             ;;
2182     esac
2183     echo "cpu = '$cpu'" >> $cross
2184     if test "$bigendian" = "yes" ; then
2185         echo "endian = 'big'" >> $cross
2186     else
2187         echo "endian = 'little'" >> $cross
2188     fi
2189   else
2190     cross_arg="--native-file config-meson.cross"
2191   fi
2192   mv $cross config-meson.cross
2193
2194   rm -rf meson-private meson-info meson-logs
2195
2196   # Prevent meson from automatically downloading wrapped subprojects when missing.
2197   # You can use 'meson subprojects download' before running configure.
2198   meson_option_add "--wrap-mode=nodownload"
2199
2200   # Built-in options
2201   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2202   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2203   test "$static" = yes && meson_option_add -Dprefer_static=true
2204   test "$pie" = no && meson_option_add -Db_pie=false
2205   test "$werror" = yes && meson_option_add -Dwerror=true
2206
2207   # QEMU options
2208   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2209   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
2210   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2211   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2212   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2213   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2214   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2215   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2216   run_meson() {
2217     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2218   }
2219   eval run_meson $meson_options
2220   if test "$?" -ne 0 ; then
2221       error_exit "meson setup failed"
2222   fi
2223 fi
2224
2225 # Save the configure command line for later reuse.
2226 cat <<EOD >config.status
2227 #!/bin/sh
2228 # Generated by configure.
2229 # Run this file to recreate the current configuration.
2230 # Compiler output produced by configure, useful for debugging
2231 # configure, is in config.log if it exists.
2232 EOD
2233
2234 preserve_env() {
2235     envname=$1
2236
2237     eval envval=\$$envname
2238
2239     if test -n "$envval"
2240     then
2241         echo "$envname='$envval'" >> config.status
2242         echo "export $envname" >> config.status
2243     else
2244         echo "unset $envname" >> config.status
2245     fi
2246 }
2247
2248 # Preserve various env variables that influence what
2249 # features/build target configure will detect
2250 preserve_env AR
2251 preserve_env AS
2252 preserve_env CC
2253 preserve_env CFLAGS
2254 preserve_env CXX
2255 preserve_env CXXFLAGS
2256 preserve_env LD
2257 preserve_env LDFLAGS
2258 preserve_env LD_LIBRARY_PATH
2259 preserve_env MAKE
2260 preserve_env NM
2261 preserve_env OBJCFLAGS
2262 preserve_env OBJCOPY
2263 preserve_env PATH
2264 preserve_env PKG_CONFIG
2265 preserve_env PKG_CONFIG_LIBDIR
2266 preserve_env PKG_CONFIG_PATH
2267 preserve_env PYTHON
2268 preserve_env QEMU_GA_MANUFACTURER
2269 preserve_env QEMU_GA_DISTRO
2270 preserve_env QEMU_GA_VERSION
2271 preserve_env SDL2_CONFIG
2272 preserve_env SMBD
2273 preserve_env STRIP
2274 preserve_env WIDL
2275 preserve_env WINDRES
2276 preserve_env WINDMC
2277
2278 printf "exec" >>config.status
2279 for i in "$0" "$@"; do
2280   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2281 done
2282 echo ' "$@"' >>config.status
2283 chmod +x config.status
2284
2285 rm -r "$TMPDIR1"