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 $QEMU_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 stack_protector=""
 230 use_containers="yes"
 231 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 232 gdb_arches=""
 233
 234 if test -e "$source_path/.git"
 235 then
 236     git_submodules_action="update"
 237 else
 238     git_submodules_action="ignore"
 239 fi
 240
 241 git_submodules="ui/keycodemapdb"
 242 git="git"
 243
 244 # Don't accept a target_list environment variable.
 245 unset target_list
 246 unset target_list_exclude
 247
 248 # Default value for a variable defining feature "foo".
 249 #  * foo="no"  feature will only be used if --enable-foo arg is given
 250 #  * foo=""    feature will be searched for, and if found, will be used
 251 #              unless --disable-foo is given
 252 #  * foo="yes" this value will only be set by --enable-foo flag.
 253 #              feature will searched for,
 254 #              if not found, configure exits with error
 255 #
 256 # Always add --enable-foo and --disable-foo command line args.
 257 # Distributions want to ensure that several features are compiled in, and it
 258 # is impossible without a --enable-foo that exits if a feature is not found.
 259
 260 default_feature=""
 261 # parse CC options second
 262 for opt do
 263   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 264   case "$opt" in
 265       --without-default-features)
 266           default_feature="no"
 267   ;;
 268   esac
 269 done
 270
 271 EXTRA_CFLAGS=""
 272 EXTRA_CXXFLAGS=""
 273 EXTRA_OBJCFLAGS=""
 274 EXTRA_LDFLAGS=""
 275
 276 debug_tcg="no"
 277 docs="auto"
 278 EXESUF=""
 279 prefix="/usr/local"
 280 qemu_suffix="qemu"
 281 softmmu="yes"
 282 linux_user=""
 283 bsd_user=""
 284 pie=""
 285 plugins="$default_feature"
 286 ninja=""
 287 bindir="bin"
 288 skip_meson=no
 289 vfio_user_server="disabled"
 290
 291 # The following Meson options are handled manually (still they
 292 # are included in the automatically generated help message)
 293
 294 # 1. Track which submodules are needed
 295 fdt="auto"
 296
 297 # 2. Automatically enable/disable other options
 298 tcg="auto"
 299 cfi="false"
 300
 301 # parse CC options second
 302 for opt do
 303   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 304   case "$opt" in
 305   --cross-prefix=*) cross_prefix="$optarg"
 306                     cross_compile="yes"
 307   ;;
 308   --cc=*) CC="$optarg"
 309   ;;
 310   --cxx=*) CXX="$optarg"
 311   ;;
 312   --objcc=*) objcc="$optarg"
 313   ;;
 314   --cpu=*) cpu="$optarg"
 315   ;;
 316   --extra-cflags=*)
 317     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 318     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 319     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 320     ;;
 321   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 322   ;;
 323   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 324   ;;
 325   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 326   ;;
 327   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 328   ;;
 329   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 330                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 331   ;;
 332   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 333                 eval "cross_cc_${cc_arch}=\$optarg"
 334   ;;
 335   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 336   ;;
 337   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 338                     eval "cross_prefix_${cc_arch}=\$optarg"
 339   ;;
 340   esac
 341 done
 342
 343 # Preferred compiler:
 344 #  ${CC} (if set)
 345 #  ${cross_prefix}gcc (if cross-prefix specified)
 346 #  system compiler
 347 if test -z "${CC}${cross_prefix}"; then
 348   cc="$host_cc"
 349 else
 350   cc="${CC-${cross_prefix}gcc}"
 351 fi
 352
 353 if test -z "${CXX}${cross_prefix}"; then
 354   cxx="c++"
 355 else
 356   cxx="${CXX-${cross_prefix}g++}"
 357 fi
 358
 359 # Preferred ObjC compiler:
 360 # $objcc (if set, i.e. via --objcc option)
 361 # ${cross_prefix}clang (if cross-prefix specified)
 362 # clang (if available)
 363 # $cc
 364 if test -z "${objcc}${cross_prefix}"; then
 365   if has clang; then
 366     objcc=clang
 367   else
 368     objcc="$cc"
 369   fi
 370 else
 371   objcc="${objcc-${cross_prefix}clang}"
 372 fi
 373
 374 ar="${AR-${cross_prefix}ar}"
 375 as="${AS-${cross_prefix}as}"
 376 ccas="${CCAS-$cc}"
 377 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 378 ld="${LD-${cross_prefix}ld}"
 379 ranlib="${RANLIB-${cross_prefix}ranlib}"
 380 nm="${NM-${cross_prefix}nm}"
 381 smbd="$SMBD"
 382 strip="${STRIP-${cross_prefix}strip}"
 383 widl="${WIDL-${cross_prefix}widl}"
 384 windres="${WINDRES-${cross_prefix}windres}"
 385 windmc="${WINDMC-${cross_prefix}windmc}"
 386 pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
 387 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 388
 389 # default flags for all hosts
 390 # We use -fwrapv to tell the compiler that we require a C dialect where
 391 # left shift of signed integers is well defined and has the expected
 392 # 2s-complement style results. (Both clang and gcc agree that it
 393 # provides these semantics.)
 394 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 395 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 396
 397 QEMU_LDFLAGS=
 398
 399 # Flags that are needed during configure but later taken care of by Meson
 400 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 401 CONFIGURE_LDFLAGS=
 402
 403
 404 check_define() {
 405 cat > $TMPC <<EOF
 406 #if !defined($1)
 407 #error $1 not defined
 408 #endif
 409 int main(void) { return 0; }
 410 EOF
 411   compile_object
 412 }
 413
 414 write_c_skeleton() {
 415     cat > $TMPC <<EOF
 416 int main(void) { return 0; }
 417 EOF
 418 }
 419
 420 if check_define __linux__ ; then
 421   targetos=linux
 422 elif check_define _WIN32 ; then
 423   targetos=windows
 424 elif check_define __OpenBSD__ ; then
 425   targetos=openbsd
 426 elif check_define __sun__ ; then
 427   targetos=sunos
 428 elif check_define __HAIKU__ ; then
 429   targetos=haiku
 430 elif check_define __FreeBSD__ ; then
 431   targetos=freebsd
 432 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 433   targetos=gnu/kfreebsd
 434 elif check_define __DragonFly__ ; then
 435   targetos=dragonfly
 436 elif check_define __NetBSD__; then
 437   targetos=netbsd
 438 elif check_define __APPLE__; then
 439   targetos=darwin
 440 else
 441   # This is a fatal error, but don't report it yet, because we
 442   # might be going to just print the --help text, or it might
 443   # be the result of a missing compiler.
 444   targetos=bogus
 445 fi
 446
 447 # OS specific
 448
 449 mingw32="no"
 450 bsd="no"
 451 linux="no"
 452 solaris="no"
 453 case $targetos in
 454 windows)
 455   mingw32="yes"
 456   plugins="no"
 457   pie="no"
 458 ;;
 459 gnu/kfreebsd)
 460   bsd="yes"
 461 ;;
 462 freebsd)
 463   bsd="yes"
 464   make="${MAKE-gmake}"
 465   # needed for kinfo_getvmmap(3) in libutil.h
 466 ;;
 467 dragonfly)
 468   bsd="yes"
 469   make="${MAKE-gmake}"
 470 ;;
 471 netbsd)
 472   bsd="yes"
 473   make="${MAKE-gmake}"
 474 ;;
 475 openbsd)
 476   bsd="yes"
 477   make="${MAKE-gmake}"
 478 ;;
 479 darwin)
 480   bsd="yes"
 481   darwin="yes"
 482   # Disable attempts to use ObjectiveC features in os/object.h since they
 483   # won't work when we're compiling with gcc as a C compiler.
 484   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 485 ;;
 486 sunos)
 487   solaris="yes"
 488   make="${MAKE-gmake}"
 489 # needed for CMSG_ macros in sys/socket.h
 490   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 491 # needed for TIOCWIN* defines in termios.h
 492   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 493 ;;
 494 haiku)
 495   pie="no"
 496   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 497 ;;
 498 linux)
 499   linux="yes"
 500 ;;
 501 esac
 502
 503 if test ! -z "$cpu" ; then
 504   # command line argument
 505   :
 506 elif check_define __i386__ ; then
 507   cpu="i386"
 508 elif check_define __x86_64__ ; then
 509   if check_define __ILP32__ ; then
 510     cpu="x32"
 511   else
 512     cpu="x86_64"
 513   fi
 514 elif check_define __sparc__ ; then
 515   if check_define __arch64__ ; then
 516     cpu="sparc64"
 517   else
 518     cpu="sparc"
 519   fi
 520 elif check_define _ARCH_PPC ; then
 521   if check_define _ARCH_PPC64 ; then
 522     if check_define _LITTLE_ENDIAN ; then
 523       cpu="ppc64le"
 524     else
 525       cpu="ppc64"
 526     fi
 527   else
 528     cpu="ppc"
 529   fi
 530 elif check_define __mips__ ; then
 531   cpu="mips"
 532 elif check_define __s390__ ; then
 533   if check_define __s390x__ ; then
 534     cpu="s390x"
 535   else
 536     cpu="s390"
 537   fi
 538 elif check_define __riscv ; then
 539   cpu="riscv"
 540 elif check_define __arm__ ; then
 541   cpu="arm"
 542 elif check_define __aarch64__ ; then
 543   cpu="aarch64"
 544 elif check_define __loongarch64 ; then
 545   cpu="loongarch64"
 546 else
 547   # Using uname is really broken, but it is just a fallback for architectures
 548   # that are going to use TCI anyway
 549   cpu=$(uname -m)
 550   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 551 fi
 552
 553 # Normalise host CPU name and set multilib cflags.  The canonicalization
 554 # isn't really necessary, because the architectures that we check for
 555 # should not hit the 'uname -m' case, but better safe than sorry.
 556 # Note that this case should only have supported host CPUs, not guests.
 557 case "$cpu" in
 558   armv*b|armv*l|arm)
 559     cpu="arm" ;;
 560
 561   i386|i486|i586|i686)
 562     cpu="i386"
 563     CPU_CFLAGS="-m32" ;;
 564   x32)
 565     cpu="x86_64"
 566     CPU_CFLAGS="-mx32" ;;
 567   x86_64|amd64)
 568     cpu="x86_64"
 569     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 570     # If we truly care, we should simply detect this case at
 571     # runtime and generate the fallback to serial emulation.
 572     CPU_CFLAGS="-m64 -mcx16" ;;
 573
 574   mips*)
 575     cpu="mips" ;;
 576
 577   ppc)
 578     CPU_CFLAGS="-m32" ;;
 579   ppc64)
 580     CPU_CFLAGS="-m64 -mbig-endian" ;;
 581   ppc64le)
 582     cpu="ppc64"
 583     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 584
 585   s390)
 586     CPU_CFLAGS="-m31" ;;
 587   s390x)
 588     CPU_CFLAGS="-m64" ;;
 589
 590   sparc|sun4[cdmuv])
 591     cpu="sparc"
 592     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 593   sparc64)
 594     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 595 esac
 596
 597 : ${make=${MAKE-make}}
 598
 599
 600 check_py_version() {
 601     # We require python >= 3.7.
 602     # NB: a True python conditional creates a non-zero return code (Failure)
 603     "$1" -c 'import sys; sys.exit(sys.version_info < (3,7))'
 604 }
 605
 606 python=
 607 pypi="enabled"
 608 first_python=
 609 if test -z "${PYTHON}"; then
 610     # A bare 'python' is traditionally python 2.x, but some distros
 611     # have it as python 3.x, so check in both places.
 612     for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7; do
 613         if has "$binary"; then
 614             python=$(command -v "$binary")
 615             if check_py_version "$python"; then
 616                 # This one is good.
 617                 first_python=
 618                 break
 619             else
 620                 first_python=$python
 621             fi
 622         fi
 623     done
 624 else
 625     # Same as above, but only check the environment variable.
 626     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 627     python=$(command -v "$PYTHON")
 628     if check_py_version "$python"; then
 629         # This one is good.
 630         first_python=
 631     else
 632         first_python=$first_python
 633     fi
 634 fi
 635
 636 # Check for ancillary tools used in testing
 637 genisoimage=
 638 for binary in genisoimage mkisofs
 639 do
 640     if has $binary
 641     then
 642         genisoimage=$(command -v "$binary")
 643         break
 644     fi
 645 done
 646
 647 if test "$mingw32" = "yes" ; then
 648   EXESUF=".exe"
 649   # MinGW needs -mthreads for TLS and macro _MT.
 650   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 651   prefix="/qemu"
 652   bindir=""
 653   qemu_suffix=""
 654 fi
 655
 656 werror=""
 657
 658 meson_option_build_array() {
 659   printf '['
 660   (if test "$targetos" = windows; then
 661     IFS=\;
 662   else
 663     IFS=:
 664   fi
 665   for e in $1; do
 666     printf '"""'
 667     # backslash escape any '\' and '"' characters
 668     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 669     printf '""",'
 670   done)
 671   printf ']\n'
 672 }
 673
 674 . "$source_path/scripts/meson-buildoptions.sh"
 675
 676 meson_options=
 677 meson_option_add() {
 678   meson_options="$meson_options $(quote_sh "$1")"
 679 }
 680 meson_option_parse() {
 681   meson_options="$meson_options $(_meson_option_parse "$@")"
 682   if test $? -eq 1; then
 683     echo "ERROR: unknown option $1"
 684     echo "Try '$0 --help' for more information"
 685     exit 1
 686   fi
 687 }
 688
 689 for opt do
 690   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 691   case "$opt" in
 692   --help|-h) show_help=yes
 693   ;;
 694   --version|-V) exec cat "$source_path/VERSION"
 695   ;;
 696   --prefix=*) prefix="$optarg"
 697   ;;
 698   --cross-prefix=*)
 699   ;;
 700   --cc=*)
 701   ;;
 702   --host-cc=*) host_cc="$optarg"
 703   ;;
 704   --cxx=*)
 705   ;;
 706   --objcc=*)
 707   ;;
 708   --make=*) make="$optarg"
 709   ;;
 710   --install=*)
 711   ;;
 712   --python=*) python="$optarg"
 713   ;;
 714   --skip-meson) skip_meson=yes
 715   ;;
 716   --ninja=*) ninja="$optarg"
 717   ;;
 718   --smbd=*) smbd="$optarg"
 719   ;;
 720   --extra-cflags=*)
 721   ;;
 722   --extra-cxxflags=*)
 723   ;;
 724   --extra-objcflags=*)
 725   ;;
 726   --extra-ldflags=*)
 727   ;;
 728   --cross-cc-*)
 729   ;;
 730   --cross-prefix-*)
 731   ;;
 732   --enable-debug-info) meson_option_add -Ddebug=true
 733   ;;
 734   --disable-debug-info) meson_option_add -Ddebug=false
 735   ;;
 736   --enable-docs) docs=enabled
 737   ;;
 738   --disable-docs) docs=disabled
 739   ;;
 740   --cpu=*)
 741   ;;
 742   --target-list=*) target_list="$optarg"
 743                    if test "$target_list_exclude"; then
 744                        error_exit "Can't mix --target-list with --target-list-exclude"
 745                    fi
 746   ;;
 747   --target-list-exclude=*) target_list_exclude="$optarg"
 748                    if test "$target_list"; then
 749                        error_exit "Can't mix --target-list-exclude with --target-list"
 750                    fi
 751   ;;
 752   --with-default-devices) meson_option_add -Ddefault_devices=true
 753   ;;
 754   --without-default-devices) meson_option_add -Ddefault_devices=false
 755   ;;
 756   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 757   ;;
 758   --with-devices-*) device_arch=${opt#--with-devices-};
 759                     device_arch=${device_arch%%=*}
 760                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 761                     if test -f "$cf"; then
 762                         device_archs="$device_archs $device_arch"
 763                         eval "devices_${device_arch}=\$optarg"
 764                     else
 765                         error_exit "File $cf does not exist"
 766                     fi
 767   ;;
 768   --without-default-features) # processed above
 769   ;;
 770   --static) static="yes"
 771   ;;
 772   --bindir=*) bindir="$optarg"
 773   ;;
 774   --with-suffix=*) qemu_suffix="$optarg"
 775   ;;
 776   --host=*|--build=*|\
 777   --disable-dependency-tracking|\
 778   --sbindir=*|--sharedstatedir=*|\
 779   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 780   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 781     # These switches are silently ignored, for compatibility with
 782     # autoconf-generated configure scripts. This allows QEMU's
 783     # configure to be used by RPM and similar macros that set
 784     # lots of directory switches by default.
 785   ;;
 786   --enable-debug-tcg) debug_tcg="yes"
 787   ;;
 788   --disable-debug-tcg) debug_tcg="no"
 789   ;;
 790   --enable-debug)
 791       # Enable debugging options that aren't excessively noisy
 792       debug_tcg="yes"
 793       meson_option_parse --enable-debug-graph-lock ""
 794       meson_option_parse --enable-debug-mutex ""
 795       meson_option_add -Doptimization=0
 796   ;;
 797   --disable-tcg) tcg="disabled"
 798                  plugins="no"
 799   ;;
 800   --enable-tcg) tcg="enabled"
 801   ;;
 802   --disable-system) softmmu="no"
 803   ;;
 804   --enable-system) softmmu="yes"
 805   ;;
 806   --disable-user)
 807       linux_user="no" ;
 808       bsd_user="no" ;
 809   ;;
 810   --enable-user) ;;
 811   --disable-linux-user) linux_user="no"
 812   ;;
 813   --enable-linux-user) linux_user="yes"
 814   ;;
 815   --disable-bsd-user) bsd_user="no"
 816   ;;
 817   --enable-bsd-user) bsd_user="yes"
 818   ;;
 819   --enable-pie) pie="yes"
 820   ;;
 821   --disable-pie) pie="no"
 822   ;;
 823   --enable-werror) werror="yes"
 824   ;;
 825   --disable-werror) werror="no"
 826   ;;
 827   --enable-stack-protector) stack_protector="yes"
 828   ;;
 829   --disable-stack-protector) stack_protector="no"
 830   ;;
 831   --enable-cfi)
 832       cfi="true";
 833       meson_option_add -Db_lto=true
 834   ;;
 835   --disable-cfi) cfi="false"
 836   ;;
 837   --disable-fdt) fdt="disabled"
 838   ;;
 839   --enable-fdt) fdt="enabled"
 840   ;;
 841   --enable-fdt=git) fdt="internal"
 842   ;;
 843   --enable-fdt=*) fdt="$optarg"
 844   ;;
 845   --with-git=*) git="$optarg"
 846   ;;
 847   --with-git-submodules=*)
 848       git_submodules_action="$optarg"
 849   ;;
 850   --disable-pypi) pypi="disabled"
 851   ;;
 852   --enable-pypi) pypi="enabled"
 853   ;;
 854   --enable-plugins) if test "$mingw32" = "yes"; then
 855                         error_exit "TCG plugins not currently supported on Windows platforms"
 856                     else
 857                         plugins="yes"
 858                     fi
 859   ;;
 860   --disable-plugins) plugins="no"
 861   ;;
 862   --enable-containers) use_containers="yes"
 863   ;;
 864   --disable-containers) use_containers="no"
 865   ;;
 866   --gdb=*) gdb_bin="$optarg"
 867   ;;
 868   --enable-vfio-user-server) vfio_user_server="enabled"
 869   ;;
 870   --disable-vfio-user-server) vfio_user_server="disabled"
 871   ;;
 872   # everything else has the same name in configure and meson
 873   --*) meson_option_parse "$opt" "$optarg"
 874   ;;
 875   esac
 876 done
 877
 878 # test for any invalid configuration combinations
 879 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 880     error_exit "Can't enable plugins on non-TCG builds"
 881 fi
 882
 883 case $git_submodules_action in
 884     update|validate)
 885         if test ! -e "$source_path/.git"; then
 886             echo "ERROR: cannot $git_submodules_action git submodules without .git"
 887             exit 1
 888         fi
 889     ;;
 890     ignore)
 891         if ! test -f "$source_path/ui/keycodemapdb/README"
 892         then
 893             echo
 894             echo "ERROR: missing GIT submodules"
 895             echo
 896             if test -e "$source_path/.git"; then
 897                 echo "--with-git-submodules=ignore specified but submodules were not"
 898                 echo "checked out.  Please initialize and update submodules."
 899             else
 900                 echo "This is not a GIT checkout but module content appears to"
 901                 echo "be missing. Do not use 'git archive' or GitHub download links"
 902                 echo "to acquire QEMU source archives. Non-GIT builds are only"
 903                 echo "supported with source archives linked from:"
 904                 echo
 905                 echo "  https://www.qemu.org/download/#source"
 906                 echo
 907                 echo "Developers working with GIT can use scripts/archive-source.sh"
 908                 echo "if they need to create valid source archives."
 909             fi
 910             echo
 911             exit 1
 912         fi
 913     ;;
 914     *)
 915         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
 916         exit 1
 917     ;;
 918 esac
 919
 920 default_target_list=""
 921 mak_wilds=""
 922
 923 if [ "$linux_user" != no ]; then
 924     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 925         linux_user=yes
 926     elif [ "$linux_user" = yes ]; then
 927         error_exit "linux-user not supported on this architecture"
 928     fi
 929 fi
 930 if [ "$bsd_user" != no ]; then
 931     if [ "$bsd_user" = "" ]; then
 932         test $targetos = freebsd && bsd_user=yes
 933     fi
 934     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 935         error_exit "bsd-user not supported on this host OS"
 936     fi
 937 fi
 938 if [ "$softmmu" = "yes" ]; then
 939     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 940 fi
 941 if [ "$linux_user" = "yes" ]; then
 942     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 943 fi
 944 if [ "$bsd_user" = "yes" ]; then
 945     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 946 fi
 947
 948 for config in $mak_wilds; do
 949     target="$(basename "$config" .mak)"
 950     if echo "$target_list_exclude" | grep -vq "$target"; then
 951         default_target_list="${default_target_list} $target"
 952     fi
 953 done
 954
 955 if test x"$show_help" = x"yes" ; then
 956 cat << EOF
 957
 958 Usage: configure [options]
 959 Options: [defaults in brackets after descriptions]
 960
 961 Standard options:
 962   --help                   print this message
 963   --prefix=PREFIX          install in PREFIX [$prefix]
 964   --target-list=LIST       set target list (default: build all)
 965 $(echo Available targets: $default_target_list | \
 966   fold -s -w 53 | sed -e 's/^/                           /')
 967   --target-list-exclude=LIST exclude a set of targets from the default target-list
 968
 969 Advanced options (experts only):
 970   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 971   --cc=CC                  use C compiler CC [$cc]
 972   --host-cc=CC             use C compiler CC [$host_cc] for code run at
 973                            build time
 974   --cxx=CXX                use C++ compiler CXX [$cxx]
 975   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
 976   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
 977   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
 978   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
 979   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
 980   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
 981   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
 982   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
 983   --make=MAKE              use specified make [$make]
 984   --python=PYTHON          use specified python [$python]
 985   --ninja=NINJA            use specified ninja [$ninja]
 986   --smbd=SMBD              use specified smbd [$smbd]
 987   --with-git=GIT           use specified git [$git]
 988   --with-git-submodules=update   update git submodules (default if .git dir exists)
 989   --with-git-submodules=validate fail if git submodules are not up to date
 990   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
 991   --static                 enable static build [$static]
 992   --bindir=PATH            install binaries in PATH
 993   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
 994   --without-default-features default all --enable-* options to "disabled"
 995   --without-default-devices  do not include any device that is not needed to
 996                            start the emulator (only use if you are including
 997                            desired devices in configs/devices/)
 998   --with-devices-ARCH=NAME override default configs/devices
 999   --enable-debug           enable common debug build options
1000   --disable-werror         disable compilation abort on warning
1001   --disable-stack-protector disable compiler-provided stack protection
1002   --cpu=CPU                Build for host CPU [$cpu]
1003   --enable-plugins
1004                            enable plugins via shared library loading
1005   --disable-containers     don't use containers for cross-building
1006   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1007 EOF
1008   meson_options_help
1009 cat << EOF
1010   system          all system emulation targets
1011   user            supported user emulation targets
1012   linux-user      all linux usermode emulation targets
1013   bsd-user        all BSD usermode emulation targets
1014   pie             Position Independent Executables
1015   debug-tcg       TCG debugging (default is disabled)
1016   debug-info      debugging information
1017
1018 NOTE: The object files are built at the place where configure is launched
1019 EOF
1020 exit 0
1021 fi
1022
1023 # Remove old dependency files to make sure that they get properly regenerated
1024 rm -f ./*/config-devices.mak.d
1025
1026 if test -z "$python"
1027 then
1028     # If first_python is set, there was a binary somewhere even though
1029     # it was not suitable.  Use it for the error message.
1030     if test -n "$first_python"; then
1031         error_exit "Cannot use '$first_python', Python >= 3.7 is required." \
1032             "Use --python=/path/to/python to specify a supported Python."
1033     else
1034         error_exit "Python not found. Use --python=/path/to/python"
1035     fi
1036 fi
1037
1038 if ! has "$make"
1039 then
1040     error_exit "GNU make ($make) not found"
1041 fi
1042
1043 if ! check_py_version "$python"; then
1044   error_exit "Cannot use '$python', Python >= 3.7 is required." \
1045              "Use --python=/path/to/python to specify a supported Python." \
1046              "Maybe try:" \
1047              "  openSUSE Leap 15.3+: zypper install python39" \
1048              "  CentOS 8: dnf install python38"
1049 fi
1050
1051 # Resolve PATH
1052 python="$(command -v "$python")"
1053
1054 # Create a Python virtual environment using our configured python.
1055 # The stdout of this script will be the location of a symlink that
1056 # points to the configured Python.
1057 # Entry point scripts for pip, meson, and sphinx are generated if those
1058 # packages are present.
1059
1060 # Defaults assumed for now:
1061 # - venv is cleared if it exists already;
1062 # - venv is allowed to use system packages;
1063 # - all setup can be performed offline;
1064 # - missing packages may be fetched from PyPI,
1065 #   unless --disable-pypi is passed.
1066 # - pip is not installed into the venv when possible,
1067 #   but ensurepip is called as a fallback when necessary.
1068
1069 echo "python determined to be '$python'"
1070 echo "python version: $($python --version)"
1071
1072 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
1073 if test "$?" -ne 0 ; then
1074     error_exit "python venv creation failed"
1075 fi
1076
1077 # Suppress writing compiled files
1078 python="$python -B"
1079 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
1080
1081 mkvenv_flags=""
1082 if test "$pypi" = "enabled" ; then
1083     mkvenv_flags="--online"
1084 fi
1085
1086 if ! $mkvenv ensure \
1087      $mkvenv_flags \
1088      --dir "${source_path}/python/wheels" \
1089      --diagnose "meson" \
1090      "meson>=0.63.0" ;
1091 then
1092     exit 1
1093 fi
1094
1095 # At this point, we expect Meson to be installed and available.
1096 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
1097 # We ignore PATH completely here: we want to use the venv's Meson
1098 # *exclusively*.
1099
1100 meson="$(cd pyvenv/bin; pwd)/meson"
1101
1102 # Conditionally ensure Sphinx is installed.
1103
1104 mkvenv_flags=""
1105 if test "$pypi" = "enabled" -a "$docs" = "enabled" ; then
1106     mkvenv_flags="--online"
1107 fi
1108
1109 if test "$docs" != "disabled" ; then
1110     if ! $mkvenv ensure \
1111          $mkvenv_flags \
1112          --diagnose "sphinx-build" \
1113          "sphinx>=1.6.0" "sphinx-rtd-theme>=0.5.0";
1114     then
1115         if test "$docs" = "enabled" ; then
1116             exit 1
1117         fi
1118         echo "Sphinx not found/usable, disabling docs."
1119         docs=disabled
1120     else
1121         docs=enabled
1122     fi
1123 fi
1124
1125 # Probe for ninja
1126
1127 if test -z "$ninja"; then
1128     for c in ninja ninja-build samu; do
1129         if has $c; then
1130             ninja=$(command -v "$c")
1131             break
1132         fi
1133     done
1134     if test -z "$ninja"; then
1135       error_exit "Cannot find Ninja"
1136     fi
1137 fi
1138
1139 # Check that the C compiler works. Doing this here before testing
1140 # the host CPU ensures that we had a valid CC to autodetect the
1141 # $cpu var (and we should bail right here if that's not the case).
1142 # It also allows the help message to be printed without a CC.
1143 write_c_skeleton;
1144 if compile_object ; then
1145   : C compiler works ok
1146 else
1147     error_exit "\"$cc\" either does not exist or does not work"
1148 fi
1149 if ! compile_prog ; then
1150     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1151 fi
1152
1153 # Consult white-list to determine whether to enable werror
1154 # by default.  Only enable by default for git builds
1155 if test -z "$werror" ; then
1156     if test "$git_submodules_action" != "ignore" && \
1157         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1158         werror="yes"
1159     else
1160         werror="no"
1161     fi
1162 fi
1163
1164 if test "$targetos" = "bogus"; then
1165     # Now that we know that we're not printing the help and that
1166     # the compiler works (so the results of the check_defines we used
1167     # to identify the OS are reliable), if we didn't recognize the
1168     # host OS we should stop now.
1169     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1170 fi
1171
1172 # Check whether the compiler matches our minimum requirements:
1173 cat > $TMPC << EOF
1174 #if defined(__clang_major__) && defined(__clang_minor__)
1175 # ifdef __apple_build_version__
1176 #  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1177 #   error You need at least XCode Clang v12.0 to compile QEMU
1178 #  endif
1179 # else
1180 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1181 #   error You need at least Clang v10.0 to compile QEMU
1182 #  endif
1183 # endif
1184 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1185 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1186 #  error You need at least GCC v7.4.0 to compile QEMU
1187 # endif
1188 #else
1189 # error You either need GCC or Clang to compiler QEMU
1190 #endif
1191 int main (void) { return 0; }
1192 EOF
1193 if ! compile_prog "" "" ; then
1194     error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1195 fi
1196
1197 # Accumulate -Wfoo and -Wno-bar separately.
1198 # We will list all of the enable flags first, and the disable flags second.
1199 # Note that we do not add -Werror, because that would enable it for all
1200 # configure tests. If a configure test failed due to -Werror this would
1201 # just silently disable some features, so it's too error prone.
1202
1203 warn_flags=
1204 add_to warn_flags -Wundef
1205 add_to warn_flags -Wwrite-strings
1206 add_to warn_flags -Wmissing-prototypes
1207 add_to warn_flags -Wstrict-prototypes
1208 add_to warn_flags -Wredundant-decls
1209 add_to warn_flags -Wold-style-declaration
1210 add_to warn_flags -Wold-style-definition
1211 add_to warn_flags -Wtype-limits
1212 add_to warn_flags -Wformat-security
1213 add_to warn_flags -Wformat-y2k
1214 add_to warn_flags -Winit-self
1215 add_to warn_flags -Wignored-qualifiers
1216 add_to warn_flags -Wempty-body
1217 add_to warn_flags -Wnested-externs
1218 add_to warn_flags -Wendif-labels
1219 add_to warn_flags -Wexpansion-to-defined
1220 add_to warn_flags -Wimplicit-fallthrough=2
1221 add_to warn_flags -Wmissing-format-attribute
1222
1223 if test "$targetos" != "darwin"; then
1224     add_to warn_flags -Wthread-safety
1225 fi
1226
1227 nowarn_flags=
1228 add_to nowarn_flags -Wno-initializer-overrides
1229 add_to nowarn_flags -Wno-missing-include-dirs
1230 add_to nowarn_flags -Wno-shift-negative-value
1231 add_to nowarn_flags -Wno-string-plus-int
1232 add_to nowarn_flags -Wno-typedef-redefinition
1233 add_to nowarn_flags -Wno-tautological-type-limit-compare
1234 add_to nowarn_flags -Wno-psabi
1235 add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1236
1237 gcc_flags="$warn_flags $nowarn_flags"
1238
1239 cc_has_warning_flag() {
1240     write_c_skeleton;
1241
1242     # Use the positive sense of the flag when testing for -Wno-wombat
1243     # support (gcc will happily accept the -Wno- form of unknown
1244     # warning options).
1245     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1246     compile_prog "-Werror $optflag" ""
1247 }
1248
1249 objcc_has_warning_flag() {
1250     cat > $TMPM <<EOF
1251 int main(void) { return 0; }
1252 EOF
1253
1254     # Use the positive sense of the flag when testing for -Wno-wombat
1255     # support (gcc will happily accept the -Wno- form of unknown
1256     # warning options).
1257     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1258     do_objc -Werror $optflag \
1259       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1260       -o $TMPE $TMPM $QEMU_LDFLAGS
1261 }
1262
1263 for flag in $gcc_flags; do
1264     if cc_has_warning_flag $flag ; then
1265         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1266     fi
1267     if objcc_has_warning_flag $flag ; then
1268         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1269     fi
1270 done
1271
1272 if test "$stack_protector" != "no"; then
1273   cat > $TMPC << EOF
1274 int main(int argc, char *argv[])
1275 {
1276     char arr[64], *p = arr, *c = argv[argc - 1];
1277     while (*c) {
1278         *p++ = *c++;
1279     }
1280     return 0;
1281 }
1282 EOF
1283   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1284   sp_on=0
1285   for flag in $gcc_flags; do
1286     # We need to check both a compile and a link, since some compiler
1287     # setups fail only on a .c->.o compile and some only at link time
1288     if compile_object "-Werror $flag" &&
1289        compile_prog "-Werror $flag" ""; then
1290       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1291       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1292       sp_on=1
1293       break
1294     fi
1295   done
1296   if test "$stack_protector" = yes; then
1297     if test $sp_on = 0; then
1298       error_exit "Stack protector not supported"
1299     fi
1300   fi
1301 fi
1302
1303 if test "$static" = "yes" ; then
1304   if test "$plugins" = "yes"; then
1305     error_exit "static and plugins are mutually incompatible"
1306   else
1307     plugins="no"
1308   fi
1309 fi
1310 test "$plugins" = "" && plugins=yes
1311
1312 cat > $TMPC << EOF
1313
1314 #ifdef __linux__
1315 #  define THREAD __thread
1316 #else
1317 #  define THREAD
1318 #endif
1319 static THREAD int tls_var;
1320 int main(void) { return tls_var; }
1321 EOF
1322
1323 # Meson currently only handles pie as a boolean for now so if we have
1324 # explicitly disabled PIE we need to extend our cflags because it wont.
1325 if test "$static" = "yes"; then
1326   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1327     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1328     pie="yes"
1329   elif test "$pie" = "yes"; then
1330     error_exit "-static-pie not available due to missing toolchain support"
1331   else
1332     pie="no"
1333     QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
1334   fi
1335 elif test "$pie" = "no"; then
1336   if compile_prog "-Werror -fno-pie" "-no-pie"; then
1337     CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1338     CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1339     QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1340   fi
1341 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1342   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1343   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1344   pie="yes"
1345 elif test "$pie" = "yes"; then
1346   error_exit "PIE not available due to missing toolchain support"
1347 else
1348   echo "Disabling PIE due to missing toolchain support"
1349   pie="no"
1350 fi
1351
1352 ##########################################
1353 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1354 # use i686 as default anyway, but for those that don't, an explicit
1355 # specification is necessary
1356
1357 if test "$cpu" = "i386"; then
1358   cat > $TMPC << EOF
1359 static int sfaa(int *ptr)
1360 {
1361   return __sync_fetch_and_and(ptr, 0);
1362 }
1363
1364 int main(void)
1365 {
1366   int val = 42;
1367   val = __sync_val_compare_and_swap(&val, 0, 1);
1368   sfaa(&val);
1369   return val;
1370 }
1371 EOF
1372   if ! compile_prog "" "" ; then
1373     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1374   fi
1375 fi
1376
1377 if test -z "${target_list+xxx}" ; then
1378     default_targets=yes
1379     for target in $default_target_list; do
1380         target_list="$target_list $target"
1381     done
1382     target_list="${target_list# }"
1383 else
1384     default_targets=no
1385     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1386     for target in $target_list; do
1387         # Check that we recognised the target name; this allows a more
1388         # friendly error message than if we let it fall through.
1389         case " $default_target_list " in
1390             *" $target "*)
1391                 ;;
1392             *)
1393                 error_exit "Unknown target name '$target'"
1394                 ;;
1395         esac
1396     done
1397 fi
1398
1399 # see if system emulation was really requested
1400 case " $target_list " in
1401   *"-softmmu "*) softmmu=yes
1402   ;;
1403   *) softmmu=no
1404   ;;
1405 esac
1406
1407 if test "$tcg" = "auto"; then
1408   if test -z "$target_list"; then
1409     tcg="disabled"
1410   else
1411     tcg="enabled"
1412   fi
1413 fi
1414
1415 if test "$tcg" = "enabled"; then
1416     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1417     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1418 fi
1419
1420 ##########################################
1421 # big/little endian test
1422 cat > $TMPC << EOF
1423 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1424 # error LITTLE
1425 #endif
1426 int main(void) { return 0; }
1427 EOF
1428
1429 if ! compile_prog ; then
1430   bigendian="no"
1431 else
1432   cat > $TMPC << EOF
1433 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1434 # error BIG
1435 #endif
1436 int main(void) { return 0; }
1437 EOF
1438
1439   if ! compile_prog ; then
1440     bigendian="yes"
1441   else
1442     echo big/little test failed
1443     exit 1
1444   fi
1445 fi
1446
1447 ##########################################
1448 # fdt probe
1449
1450 case "$fdt" in
1451   auto | enabled | internal)
1452     # Simpler to always update submodule, even if not needed.
1453     git_submodules="${git_submodules} dtc"
1454     ;;
1455 esac
1456
1457 ########################################
1458 # check if ccache is interfering with
1459 # semantic analysis of macros
1460
1461 unset CCACHE_CPP2
1462 ccache_cpp2=no
1463 cat > $TMPC << EOF
1464 static const int Z = 1;
1465 #define fn() ({ Z; })
1466 #define TAUT(X) ((X) == Z)
1467 #define PAREN(X, Y) (X == Y)
1468 #define ID(X) (X)
1469 int main(void)
1470 {
1471     int x = 0, y = 0;
1472     x = ID(x);
1473     x = fn();
1474     fn();
1475     if (PAREN(x, y)) return 0;
1476     if (TAUT(Z)) return 0;
1477     return 0;
1478 }
1479 EOF
1480
1481 if ! compile_object "-Werror"; then
1482     ccache_cpp2=yes
1483 fi
1484
1485 ##########################################
1486 # functions to probe cross compilers
1487
1488 container="no"
1489 runc=""
1490 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1491     case $($python "$source_path"/tests/docker/docker.py probe) in
1492         *docker) container=docker ;;
1493         podman) container=podman ;;
1494         no) container=no ;;
1495     esac
1496     if test "$container" != "no"; then
1497         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1498         runc=$($python "$source_path"/tests/docker/docker.py probe)
1499     fi
1500 fi
1501
1502 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1503 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1504 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1505 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1506 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1507 : ${cross_prefix_armeb="$cross_prefix_arm"}
1508 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1509 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1510 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1511 : ${cross_prefix_i386="i686-linux-gnu-"}
1512 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1513 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1514 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1515 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1516 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1517 : ${cross_prefix_mips="mips-linux-gnu-"}
1518 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1519 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1520 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1521 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1522 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1523 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1524 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1525 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1526 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1527 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1528
1529 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1530 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1531 : ${cross_cc_armeb="$cross_cc_arm"}
1532 : ${cross_cc_cflags_armeb="-mbig-endian"}
1533 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1534 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1535 : ${cross_cc_cflags_i386="-m32"}
1536 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1537 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1538 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1539 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1540 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1541 : ${cross_cc_sparc="$cross_cc_sparc64"}
1542 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1543 : ${cross_cc_cflags_x86_64="-m64"}
1544
1545 compute_target_variable() {
1546   eval "$2="
1547   if eval test -n "\"\${cross_prefix_$1}\""; then
1548     if eval has "\"\${cross_prefix_$1}\$3\""; then
1549       eval "$2=\"\${cross_prefix_$1}\$3\""
1550     fi
1551   fi
1552 }
1553
1554 have_target() {
1555   for i; do
1556     case " $target_list " in
1557       *" $i "*) return 0;;
1558       *) ;;
1559     esac
1560   done
1561   return 1
1562 }
1563
1564 # probe_target_compiler TARGET
1565 #
1566 # Look for a compiler for the given target, either native or cross.
1567 # Set variables target_* if a compiler is found, and container_cross_*
1568 # if a Docker-based cross-compiler image is known for the target.
1569 # Set got_cross_cc to yes/no depending on whether a non-container-based
1570 # compiler was found.
1571 #
1572 # If TARGET is a user-mode emulation target, also set build_static to
1573 # "y" if static linking is possible.
1574 #
1575 probe_target_compiler() {
1576   # reset all output variables
1577   got_cross_cc=no
1578   container_image=
1579   container_hosts=
1580   container_cross_cc=
1581   container_cross_ar=
1582   container_cross_as=
1583   container_cross_ld=
1584   container_cross_nm=
1585   container_cross_objcopy=
1586   container_cross_ranlib=
1587   container_cross_strip=
1588
1589   # We shall skip configuring the target compiler if the user didn't
1590   # bother enabling an appropriate guest. This avoids building
1591   # extraneous firmware images and tests.
1592   if test "${target_list#*$1}" = "$1"; then
1593       return 1
1594   fi
1595
1596   target_arch=${1%%-*}
1597   case $target_arch in
1598     aarch64) container_hosts="x86_64 aarch64" ;;
1599     alpha) container_hosts=x86_64 ;;
1600     arm) container_hosts="x86_64 aarch64" ;;
1601     cris) container_hosts=x86_64 ;;
1602     hexagon) container_hosts=x86_64 ;;
1603     hppa) container_hosts=x86_64 ;;
1604     i386) container_hosts=x86_64 ;;
1605     loongarch64) container_hosts=x86_64 ;;
1606     m68k) container_hosts=x86_64 ;;
1607     microblaze) container_hosts=x86_64 ;;
1608     mips64el) container_hosts=x86_64 ;;
1609     mips64) container_hosts=x86_64 ;;
1610     mipsel) container_hosts=x86_64 ;;
1611     mips) container_hosts=x86_64 ;;
1612     nios2) container_hosts=x86_64 ;;
1613     ppc) container_hosts=x86_64 ;;
1614     ppc64|ppc64le) container_hosts=x86_64 ;;
1615     riscv64) container_hosts=x86_64 ;;
1616     s390x) container_hosts=x86_64 ;;
1617     sh4) container_hosts=x86_64 ;;
1618     sparc64) container_hosts=x86_64 ;;
1619     tricore) container_hosts=x86_64 ;;
1620     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1621     xtensa*) container_hosts=x86_64 ;;
1622   esac
1623
1624   for host in $container_hosts; do
1625     test "$container" != no || continue
1626     test "$host" = "$cpu" || continue
1627     case $target_arch in
1628       aarch64)
1629         # We don't have any bigendian build tools so we only use this for AArch64
1630         container_image=debian-arm64-cross
1631         container_cross_prefix=aarch64-linux-gnu-
1632         container_cross_cc=${container_cross_prefix}gcc-10
1633         ;;
1634       alpha)
1635         container_image=debian-alpha-cross
1636         container_cross_prefix=alpha-linux-gnu-
1637         ;;
1638       arm)
1639         # We don't have any bigendian build tools so we only use this for ARM
1640         container_image=debian-armhf-cross
1641         container_cross_prefix=arm-linux-gnueabihf-
1642         ;;
1643       cris)
1644         container_image=fedora-cris-cross
1645         container_cross_prefix=cris-linux-gnu-
1646         ;;
1647       hexagon)
1648         container_image=debian-hexagon-cross
1649         container_cross_prefix=hexagon-unknown-linux-musl-
1650         container_cross_cc=${container_cross_prefix}clang
1651         ;;
1652       hppa)
1653         container_image=debian-hppa-cross
1654         container_cross_prefix=hppa-linux-gnu-
1655         ;;
1656       i386)
1657         container_image=fedora-i386-cross
1658         container_cross_prefix=
1659         ;;
1660       loongarch64)
1661         container_image=debian-loongarch-cross
1662         container_cross_prefix=loongarch64-unknown-linux-gnu-
1663         ;;
1664       m68k)
1665         container_image=debian-m68k-cross
1666         container_cross_prefix=m68k-linux-gnu-
1667         ;;
1668       microblaze)
1669         container_image=debian-microblaze-cross
1670         container_cross_prefix=microblaze-linux-musl-
1671         ;;
1672       mips64el)
1673         container_image=debian-mips64el-cross
1674         container_cross_prefix=mips64el-linux-gnuabi64-
1675         ;;
1676       mips64)
1677         container_image=debian-mips64-cross
1678         container_cross_prefix=mips64-linux-gnuabi64-
1679         ;;
1680       mipsel)
1681         container_image=debian-mipsel-cross
1682         container_cross_prefix=mipsel-linux-gnu-
1683         ;;
1684       mips)
1685         container_image=debian-mips-cross
1686         container_cross_prefix=mips-linux-gnu-
1687         ;;
1688       nios2)
1689         container_image=debian-nios2-cross
1690         container_cross_prefix=nios2-linux-gnu-
1691         ;;
1692       ppc)
1693         container_image=debian-powerpc-test-cross
1694         container_cross_prefix=powerpc-linux-gnu-
1695         container_cross_cc=${container_cross_prefix}gcc-10
1696         ;;
1697       ppc64|ppc64le)
1698         container_image=debian-powerpc-test-cross
1699         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1700         container_cross_cc=${container_cross_prefix}gcc-10
1701         ;;
1702       riscv64)
1703         container_image=debian-riscv64-test-cross
1704         container_cross_prefix=riscv64-linux-gnu-
1705         ;;
1706       s390x)
1707         container_image=debian-s390x-cross
1708         container_cross_prefix=s390x-linux-gnu-
1709         ;;
1710       sh4)
1711         container_image=debian-sh4-cross
1712         container_cross_prefix=sh4-linux-gnu-
1713         ;;
1714       sparc64)
1715         container_image=debian-sparc64-cross
1716         container_cross_prefix=sparc64-linux-gnu-
1717         ;;
1718       tricore)
1719         container_image=debian-tricore-cross
1720         container_cross_prefix=tricore-
1721         container_cross_as=tricore-as
1722         container_cross_ld=tricore-ld
1723         break
1724         ;;
1725       x86_64)
1726         container_image=debian-amd64-cross
1727         container_cross_prefix=x86_64-linux-gnu-
1728         ;;
1729       xtensa*)
1730         container_hosts=x86_64
1731         container_image=debian-xtensa-cross
1732
1733         # default to the dc232b cpu
1734         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1735         ;;
1736     esac
1737     : ${container_cross_cc:=${container_cross_prefix}gcc}
1738     : ${container_cross_ar:=${container_cross_prefix}ar}
1739     : ${container_cross_as:=${container_cross_prefix}as}
1740     : ${container_cross_ld:=${container_cross_prefix}ld}
1741     : ${container_cross_nm:=${container_cross_prefix}nm}
1742     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1743     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1744     : ${container_cross_strip:=${container_cross_prefix}strip}
1745   done
1746
1747   try=cross
1748   case "$target_arch:$cpu" in
1749     aarch64_be:aarch64 | \
1750     armeb:arm | \
1751     i386:x86_64 | \
1752     mips*:mips64 | \
1753     ppc*:ppc64 | \
1754     sparc:sparc64 | \
1755     "$cpu:$cpu")
1756       try='native cross' ;;
1757   esac
1758   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1759   for thistry in $try; do
1760     case $thistry in
1761     native)
1762       target_cc=$cc
1763       target_ccas=$ccas
1764       target_ar=$ar
1765       target_as=$as
1766       target_ld=$ld
1767       target_nm=$nm
1768       target_objcopy=$objcopy
1769       target_ranlib=$ranlib
1770       target_strip=$strip
1771       ;;
1772     cross)
1773       target_cc=
1774       if eval test -n "\"\${cross_cc_$target_arch}\""; then
1775         if eval has "\"\${cross_cc_$target_arch}\""; then
1776           eval "target_cc=\"\${cross_cc_$target_arch}\""
1777         fi
1778       else
1779         compute_target_variable $target_arch target_cc gcc
1780       fi
1781       target_ccas=$target_cc
1782       compute_target_variable $target_arch target_ar ar
1783       compute_target_variable $target_arch target_as as
1784       compute_target_variable $target_arch target_ld ld
1785       compute_target_variable $target_arch target_nm nm
1786       compute_target_variable $target_arch target_objcopy objcopy
1787       compute_target_variable $target_arch target_ranlib ranlib
1788       compute_target_variable $target_arch target_strip strip
1789       ;;
1790     esac
1791
1792     if test -n "$target_cc"; then
1793       case $target_arch in
1794         i386|x86_64)
1795           if $target_cc --version | grep -qi "clang"; then
1796             continue
1797           fi
1798           ;;
1799       esac
1800     elif test -n "$target_as" && test -n "$target_ld"; then
1801       # Special handling for assembler only targets
1802       case $target in
1803         tricore-softmmu)
1804           build_static=
1805           got_cross_cc=yes
1806           break
1807           ;;
1808         *)
1809           continue
1810           ;;
1811       esac
1812     else
1813       continue
1814     fi
1815
1816     write_c_skeleton
1817     case $1 in
1818       *-softmmu)
1819         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1820           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1821           got_cross_cc=yes
1822           break
1823         fi
1824         ;;
1825       *)
1826         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1827           build_static=y
1828           got_cross_cc=yes
1829           break
1830         fi
1831         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1832           build_static=
1833           got_cross_cc=yes
1834           break
1835         fi
1836         ;;
1837     esac
1838   done
1839   if test $got_cross_cc != yes; then
1840     build_static=
1841     target_cc=
1842     target_ccas=
1843     target_ar=
1844     target_as=
1845     target_ld=
1846     target_nm=
1847     target_objcopy=
1848     target_ranlib=
1849     target_strip=
1850   fi
1851   test -n "$target_cc"
1852 }
1853
1854 write_target_makefile() {
1855   echo "EXTRA_CFLAGS=$target_cflags"
1856   if test -z "$target_cc" && test -z "$target_as"; then
1857     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1858     echo "$1: docker-image-$container_image" >> Makefile.prereqs
1859     if test -n "$container_cross_cc"; then
1860       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1861       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1862     fi
1863     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1864     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1865     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1866     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1867     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1868     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1869     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1870   else
1871     if test -n "$target_cc"; then
1872       echo "CC=$target_cc"
1873       echo "CCAS=$target_ccas"
1874     fi
1875     if test -n "$target_ar"; then
1876       echo "AR=$target_ar"
1877     fi
1878     if test -n "$target_as"; then
1879       echo "AS=$target_as"
1880     fi
1881     if test -n "$target_ld"; then
1882       echo "LD=$target_ld"
1883     fi
1884     if test -n "$target_nm"; then
1885       echo "NM=$target_nm"
1886     fi
1887     if test -n "$target_objcopy"; then
1888       echo "OBJCOPY=$target_objcopy"
1889     fi
1890     if test -n "$target_ranlib"; then
1891       echo "RANLIB=$target_ranlib"
1892     fi
1893     if test -n "$target_strip"; then
1894       echo "STRIP=$target_strip"
1895     fi
1896   fi
1897 }
1898
1899 ##########################################
1900 # check for vfio_user_server
1901
1902 case "$vfio_user_server" in
1903   enabled )
1904     if test "$git_submodules_action" != "ignore"; then
1905       git_submodules="${git_submodules} subprojects/libvfio-user"
1906     fi
1907     ;;
1908 esac
1909
1910 #######################################
1911 # cross-compiled firmware targets
1912
1913 # Set up build tree symlinks that point back into the source tree
1914 # (these can be both files and directories).
1915 # Caution: avoid adding files or directories here using wildcards. This
1916 # will result in problems later if a new file matching the wildcard is
1917 # added to the source tree -- nothing will cause configure to be rerun
1918 # so the build tree will be missing the link back to the new file, and
1919 # tests might fail. Prefer to keep the relevant files in their own
1920 # directory and symlink the directory instead.
1921 LINKS="Makefile"
1922 LINKS="$LINKS docs/config"
1923 LINKS="$LINKS pc-bios/optionrom/Makefile"
1924 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1925 LINKS="$LINKS pc-bios/vof/Makefile"
1926 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1927 LINKS="$LINKS tests/avocado tests/data"
1928 LINKS="$LINKS tests/qemu-iotests/check"
1929 LINKS="$LINKS python"
1930 LINKS="$LINKS contrib/plugins/Makefile "
1931 for f in $LINKS ; do
1932     if [ -e "$source_path/$f" ]; then
1933         mkdir -p "$(dirname ./"$f")"
1934         symlink "$source_path/$f" "$f"
1935     fi
1936 done
1937
1938 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1939
1940 # Mac OS X ships with a broken assembler
1941 roms=
1942 if have_target i386-softmmu x86_64-softmmu && \
1943         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1944         test "$targetos" != "haiku" && \
1945         probe_target_compiler i386-softmmu; then
1946     roms="pc-bios/optionrom"
1947     config_mak=pc-bios/optionrom/config.mak
1948     echo "# Automatically generated by configure - do not modify" > $config_mak
1949     echo "TOPSRC_DIR=$source_path" >> $config_mak
1950     write_target_makefile >> $config_mak
1951 fi
1952
1953 if have_target ppc-softmmu ppc64-softmmu && \
1954         probe_target_compiler ppc-softmmu; then
1955     roms="$roms pc-bios/vof"
1956     config_mak=pc-bios/vof/config.mak
1957     echo "# Automatically generated by configure - do not modify" > $config_mak
1958     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1959     write_target_makefile >> $config_mak
1960 fi
1961
1962 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1963 # (which is the lowest architecture level that Clang supports)
1964 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
1965   write_c_skeleton
1966   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1967   has_z900=$?
1968   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1969     if [ $has_z900 != 0 ]; then
1970       echo "WARNING: Your compiler does not support the z900!"
1971       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1972     fi
1973     roms="$roms pc-bios/s390-ccw"
1974     config_mak=pc-bios/s390-ccw/config-host.mak
1975     echo "# Automatically generated by configure - do not modify" > $config_mak
1976     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1977     write_target_makefile >> $config_mak
1978     # SLOF is required for building the s390-ccw firmware on s390x,
1979     # since it is using the libnet code from SLOF for network booting.
1980     git_submodules="${git_submodules} roms/SLOF"
1981   fi
1982 fi
1983
1984 #######################################
1985 # generate config-host.mak
1986
1987 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
1988     exit 1
1989 fi
1990
1991 config_host_mak="config-host.mak"
1992
1993 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1994 echo >> $config_host_mak
1995
1996 echo all: >> $config_host_mak
1997 echo "GIT=$git" >> $config_host_mak
1998 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
1999 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2000
2001 if test "$debug_tcg" = "yes" ; then
2002   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2003 fi
2004 if test "$mingw32" = "yes" ; then
2005   echo "CONFIG_WIN32=y" >> $config_host_mak
2006   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2007   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2008   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2009 else
2010   echo "CONFIG_POSIX=y" >> $config_host_mak
2011 fi
2012
2013 if test "$linux" = "yes" ; then
2014   echo "CONFIG_LINUX=y" >> $config_host_mak
2015 fi
2016
2017 if test "$darwin" = "yes" ; then
2018   echo "CONFIG_DARWIN=y" >> $config_host_mak
2019 fi
2020
2021 if test "$solaris" = "yes" ; then
2022   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2023 fi
2024 echo "SRC_PATH=$source_path" >> $config_host_mak
2025 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2026
2027 # XXX: suppress that
2028 if [ "$bsd" = "yes" ] ; then
2029   echo "CONFIG_BSD=y" >> $config_host_mak
2030 fi
2031
2032 if test "$plugins" = "yes" ; then
2033     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2034 fi
2035
2036 if test -n "$gdb_bin"; then
2037     gdb_version=$($gdb_bin --version | head -n 1)
2038     if version_ge ${gdb_version##* } 9.1; then
2039         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2040         gdb_arches=$("$source_path/scripts/probe-gdb-support.py" $gdb_bin)
2041     else
2042         gdb_bin=""
2043     fi
2044 fi
2045
2046 if test "$container" != no; then
2047     echo "ENGINE=$container" >> $config_host_mak
2048     echo "RUNC=$runc" >> $config_host_mak
2049 fi
2050 echo "ROMS=$roms" >> $config_host_mak
2051 echo "MAKE=$make" >> $config_host_mak
2052 echo "PYTHON=$python" >> $config_host_mak
2053 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2054 echo "MESON=$meson" >> $config_host_mak
2055 echo "NINJA=$ninja" >> $config_host_mak
2056 echo "PKG_CONFIG=${pkg_config}" >> $config_host_mak
2057 echo "CC=$cc" >> $config_host_mak
2058 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2059 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2060 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2061 echo "EXESUF=$EXESUF" >> $config_host_mak
2062
2063 # use included Linux headers
2064 if test "$linux" = "yes" ; then
2065   mkdir -p linux-headers
2066   case "$cpu" in
2067   i386|x86_64)
2068     linux_arch=x86
2069     ;;
2070   ppc|ppc64)
2071     linux_arch=powerpc
2072     ;;
2073   s390x)
2074     linux_arch=s390
2075     ;;
2076   aarch64)
2077     linux_arch=arm64
2078     ;;
2079   loongarch*)
2080     linux_arch=loongarch
2081     ;;
2082   mips64)
2083     linux_arch=mips
2084     ;;
2085   *)
2086     # For most CPUs the kernel architecture name and QEMU CPU name match.
2087     linux_arch="$cpu"
2088     ;;
2089   esac
2090     # For non-KVM architectures we will not have asm headers
2091     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2092       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2093     fi
2094 fi
2095
2096 for target in $target_list; do
2097     target_dir="$target"
2098     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2099     mkdir -p "$target_dir"
2100     case $target in
2101         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2102         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2103     esac
2104 done
2105
2106 if test "$default_targets" = "yes"; then
2107   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2108 fi
2109
2110 if test "$ccache_cpp2" = "yes"; then
2111   echo "export CCACHE_CPP2=y" >> $config_host_mak
2112 fi
2113
2114 # tests/tcg configuration
2115 (config_host_mak=tests/tcg/config-host.mak
2116 mkdir -p tests/tcg
2117 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2118 echo "SRC_PATH=$source_path" >> $config_host_mak
2119 echo "HOST_CC=$host_cc" >> $config_host_mak
2120
2121 # versioned checked in the main config_host.mak above
2122 if test -n "$gdb_bin"; then
2123     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2124 fi
2125 if test "$plugins" = "yes" ; then
2126     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2127 fi
2128
2129 tcg_tests_targets=
2130 for target in $target_list; do
2131   arch=${target%%-*}
2132
2133   case $target in
2134     xtensa*-linux-user)
2135       # the toolchain is not complete with headers, only build softmmu tests
2136       continue
2137       ;;
2138     *-softmmu)
2139       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2140       qemu="qemu-system-$arch"
2141       ;;
2142     *-linux-user|*-bsd-user)
2143       qemu="qemu-$arch"
2144       ;;
2145   esac
2146
2147   if probe_target_compiler $target || test -n "$container_image"; then
2148       test -n "$container_image" && build_static=y
2149       mkdir -p "tests/tcg/$target"
2150       config_target_mak=tests/tcg/$target/config-target.mak
2151       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2152       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2153       echo "TARGET_NAME=$arch" >> "$config_target_mak"
2154       echo "TARGET=$target" >> "$config_target_mak"
2155       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2156       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2157       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2158
2159       # will GDB work with these binaries?
2160       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
2161           echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
2162       fi
2163
2164       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2165       tcg_tests_targets="$tcg_tests_targets $target"
2166   fi
2167 done
2168
2169 if test "$tcg" = "enabled"; then
2170     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2171 fi
2172 )
2173
2174 if test "$skip_meson" = no; then
2175   cross="config-meson.cross.new"
2176   meson_quote() {
2177     test $# = 0 && return
2178     echo "'$(echo $* | sed "s/ /','/g")'"
2179   }
2180
2181   echo "# Automatically generated by configure - do not modify" > $cross
2182   echo "[properties]" >> $cross
2183
2184   # unroll any custom device configs
2185   for a in $device_archs; do
2186       eval "c=\$devices_${a}"
2187       echo "${a}-softmmu = '$c'" >> $cross
2188   done
2189
2190   echo "[built-in options]" >> $cross
2191   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2192   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2193   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2194   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2195   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2196   echo "[binaries]" >> $cross
2197   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2198   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2199   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2200   echo "ar = [$(meson_quote $ar)]" >> $cross
2201   echo "nm = [$(meson_quote $nm)]" >> $cross
2202   echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
2203   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2204   if has $sdl2_config; then
2205     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2206   fi
2207   echo "strip = [$(meson_quote $strip)]" >> $cross
2208   echo "widl = [$(meson_quote $widl)]" >> $cross
2209   echo "windres = [$(meson_quote $windres)]" >> $cross
2210   echo "windmc = [$(meson_quote $windmc)]" >> $cross
2211   if test "$cross_compile" = "yes"; then
2212     cross_arg="--cross-file config-meson.cross"
2213     echo "[host_machine]" >> $cross
2214     echo "system = '$targetos'" >> $cross
2215     case "$cpu" in
2216         i386)
2217             echo "cpu_family = 'x86'" >> $cross
2218             ;;
2219         *)
2220             echo "cpu_family = '$cpu'" >> $cross
2221             ;;
2222     esac
2223     echo "cpu = '$cpu'" >> $cross
2224     if test "$bigendian" = "yes" ; then
2225         echo "endian = 'big'" >> $cross
2226     else
2227         echo "endian = 'little'" >> $cross
2228     fi
2229   else
2230     cross_arg="--native-file config-meson.cross"
2231   fi
2232   mv $cross config-meson.cross
2233
2234   rm -rf meson-private meson-info meson-logs
2235
2236   # Prevent meson from automatically downloading wrapped subprojects when missing.
2237   # You can use 'meson subprojects download' before running configure.
2238   meson_option_add "--wrap-mode=nodownload"
2239
2240   # Built-in options
2241   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2242   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2243   test "$static" = yes && meson_option_add -Dprefer_static=true
2244   test "$pie" = no && meson_option_add -Db_pie=false
2245   test "$werror" = yes && meson_option_add -Dwerror=true
2246
2247   # QEMU options
2248   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2249   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
2250   test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2251   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2252   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2253   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2254   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2255   test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2256   run_meson() {
2257     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2258   }
2259   eval run_meson $meson_options
2260   if test "$?" -ne 0 ; then
2261       error_exit "meson setup failed"
2262   fi
2263 fi
2264
2265 # Save the configure command line for later reuse.
2266 cat <<EOD >config.status
2267 #!/bin/sh
2268 # Generated by configure.
2269 # Run this file to recreate the current configuration.
2270 # Compiler output produced by configure, useful for debugging
2271 # configure, is in config.log if it exists.
2272 EOD
2273
2274 preserve_env() {
2275     envname=$1
2276
2277     eval envval=\$$envname
2278
2279     if test -n "$envval"
2280     then
2281         echo "$envname='$envval'" >> config.status
2282         echo "export $envname" >> config.status
2283     else
2284         echo "unset $envname" >> config.status
2285     fi
2286 }
2287
2288 # Preserve various env variables that influence what
2289 # features/build target configure will detect
2290 preserve_env AR
2291 preserve_env AS
2292 preserve_env CC
2293 preserve_env CFLAGS
2294 preserve_env CXX
2295 preserve_env CXXFLAGS
2296 preserve_env LD
2297 preserve_env LDFLAGS
2298 preserve_env LD_LIBRARY_PATH
2299 preserve_env MAKE
2300 preserve_env NM
2301 preserve_env OBJCFLAGS
2302 preserve_env OBJCOPY
2303 preserve_env PATH
2304 preserve_env PKG_CONFIG
2305 preserve_env PKG_CONFIG_LIBDIR
2306 preserve_env PKG_CONFIG_PATH
2307 preserve_env PYTHON
2308 preserve_env QEMU_GA_MANUFACTURER
2309 preserve_env QEMU_GA_DISTRO
2310 preserve_env QEMU_GA_VERSION
2311 preserve_env SDL2_CONFIG
2312 preserve_env SMBD
2313 preserve_env STRIP
2314 preserve_env WIDL
2315 preserve_env WINDRES
2316 preserve_env WINDMC
2317
2318 printf "exec" >>config.status
2319 for i in "$0" "$@"; do
2320   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2321 done
2322 echo ' "$@"' >>config.status
2323 chmod +x config.status
2324
2325 rm -r "$TMPDIR1"