xref: /openbmc/qemu/configure (revision d044b7c3)
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.
8CLICOLOR_FORCE= GREP_OPTIONS=
9unset CLICOLOR_FORCE GREP_OPTIONS
10
11# Don't allow CCACHE, if present, to use cached results of compile tests!
12export CCACHE_RECACHE=yes
13
14# make source path absolute
15source_path=$(cd "$(dirname -- "$0")"; pwd)
16
17if test "$PWD" = "$source_path"
18then
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 $MARKER
35    then
36        echo "ERROR: Could not create ./build directory. Check the permissions on"
37        echo "your source directory, or try doing an out-of-tree build."
38        exit 1
39    fi
40
41    cat > GNUmakefile <<'EOF'
42# This file is auto-generated by configure to support in-source tree
43# 'make' command invocation
44
45ifeq ($(MAKECMDGOALS),)
46recurse: all
47endif
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
58force: ;
59.PHONY: force
60GNUmakefile: ;
61
62EOF
63    cd build
64    exec "$source_path/configure" "$@"
65fi
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.)
72TMPDIR1="config-temp"
73rm -rf "${TMPDIR1}"
74if ! mkdir -p "${TMPDIR1}"; then
75    echo "ERROR: failed to create temporary directory"
76    exit 1
77fi
78
79TMPB="qemu-conf"
80TMPC="${TMPDIR1}/${TMPB}.c"
81TMPO="${TMPDIR1}/${TMPB}.o"
82TMPM="${TMPDIR1}/${TMPB}.m"
83TMPE="${TMPDIR1}/${TMPB}.exe"
84
85rm -f config.log
86
87# Print a helpful header at the top of config.log
88echo "# QEMU configure log $(date)" >> config.log
89printf "# Configured with:" >> config.log
90# repeat the invocation to log and stdout for CI
91invoke=$(printf " '%s'" "$0" "$@")
92test -n "$GITLAB_CI" && echo "configuring with: $invoke"
93{ echo "$invoke"; echo; echo "#"; } >> config.log
94
95quote_sh() {
96    printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
97}
98
99print_error() {
100    (echo
101    echo "ERROR: $1"
102    while test -n "$2"; do
103        echo "       $2"
104        shift
105    done
106    echo) >&2
107}
108
109error_exit() {
110    print_error "$@"
111    exit 1
112}
113
114do_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 "
121funcs: ${FUNCNAME[*]}
122lines: ${BASH_LINENO[*]}"
123  '; fi
124  echo $compiler "$@" >> config.log
125  $compiler "$@" >> config.log 2>&1 || return $?
126}
127
128do_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 "
135funcs: ${FUNCNAME[*]}
136lines: ${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 $?
155    error_exit "configure test passed without -Werror but failed with -Werror." \
156        "This is probably a bug in the configure script. The failing command" \
157        "will be at the bottom of config.log." \
158        "You can run configure with --disable-werror to bypass this check."
159}
160
161do_cc() {
162    do_compiler_werror "$cc" $CPU_CFLAGS "$@"
163}
164
165do_objc() {
166    do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
167}
168
169# Append $2 to the variable named $1, with space separation
170add_to() {
171    eval $1=\${$1:+\"\$$1 \"}\$2
172}
173
174compile_object() {
175  local_cflags="$1"
176  do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
177}
178
179compile_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".
187symlink() {
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)
195has() {
196    type "$1" >/dev/null 2>&1
197}
198
199version_ge () {
200    local_ver1=$(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
218if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
219then
220  error_exit "main directory cannot contain spaces nor colons"
221fi
222
223# default parameters
224cpu=""
225static="no"
226cross_compile="no"
227cross_prefix=""
228host_cc="cc"
229stack_protector=""
230safe_stack=""
231use_containers="yes"
232gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
233gdb_arches=""
234glib_has_gslice="no"
235
236if test -e "$source_path/.git"
237then
238    git_submodules_action="update"
239else
240    git_submodules_action="ignore"
241fi
242
243git_submodules="ui/keycodemapdb"
244git="git"
245
246# Don't accept a target_list environment variable.
247unset target_list
248unset target_list_exclude
249
250# Default value for a variable defining feature "foo".
251#  * foo="no"  feature will only be used if --enable-foo arg is given
252#  * foo=""    feature will be searched for, and if found, will be used
253#              unless --disable-foo is given
254#  * foo="yes" this value will only be set by --enable-foo flag.
255#              feature will searched for,
256#              if not found, configure exits with error
257#
258# Always add --enable-foo and --disable-foo command line args.
259# Distributions want to ensure that several features are compiled in, and it
260# is impossible without a --enable-foo that exits if a feature is not found.
261
262default_feature=""
263# parse CC options second
264for opt do
265  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
266  case "$opt" in
267      --without-default-features)
268          default_feature="no"
269  ;;
270  esac
271done
272
273EXTRA_CFLAGS=""
274EXTRA_CXXFLAGS=""
275EXTRA_OBJCFLAGS=""
276EXTRA_LDFLAGS=""
277
278debug_tcg="no"
279sanitizers="no"
280tsan="no"
281fortify_source="yes"
282EXESUF=""
283modules="no"
284prefix="/usr/local"
285qemu_suffix="qemu"
286softmmu="yes"
287linux_user=""
288bsd_user=""
289pie=""
290coroutine=""
291plugins="$default_feature"
292meson=""
293ninja=""
294bindir="bin"
295skip_meson=no
296vfio_user_server="disabled"
297
298# The following Meson options are handled manually (still they
299# are included in the automatically generated help message)
300
301# 1. Track which submodules are needed
302fdt="auto"
303
304# 2. Automatically enable/disable other options
305tcg="auto"
306cfi="false"
307
308# parse CC options second
309for opt do
310  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
311  case "$opt" in
312  --cross-prefix=*) cross_prefix="$optarg"
313                    cross_compile="yes"
314  ;;
315  --cc=*) CC="$optarg"
316  ;;
317  --cxx=*) CXX="$optarg"
318  ;;
319  --objcc=*) objcc="$optarg"
320  ;;
321  --cpu=*) cpu="$optarg"
322  ;;
323  --extra-cflags=*)
324    EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
325    EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
326    EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
327    ;;
328  --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
329  ;;
330  --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
331  ;;
332  --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
333  ;;
334  --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
335  ;;
336  --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
337                      eval "cross_cc_cflags_${cc_arch}=\$optarg"
338  ;;
339  --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
340                eval "cross_cc_${cc_arch}=\$optarg"
341  ;;
342  --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
343  ;;
344  --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
345                    eval "cross_prefix_${cc_arch}=\$optarg"
346  ;;
347  esac
348done
349
350# Preferred compiler:
351#  ${CC} (if set)
352#  ${cross_prefix}gcc (if cross-prefix specified)
353#  system compiler
354if test -z "${CC}${cross_prefix}"; then
355  cc="$host_cc"
356else
357  cc="${CC-${cross_prefix}gcc}"
358fi
359
360if test -z "${CXX}${cross_prefix}"; then
361  cxx="c++"
362else
363  cxx="${CXX-${cross_prefix}g++}"
364fi
365
366# Preferred ObjC compiler:
367# $objcc (if set, i.e. via --objcc option)
368# ${cross_prefix}clang (if cross-prefix specified)
369# clang (if available)
370# $cc
371if test -z "${objcc}${cross_prefix}"; then
372  if has clang; then
373    objcc=clang
374  else
375    objcc="$cc"
376  fi
377else
378  objcc="${objcc-${cross_prefix}clang}"
379fi
380
381ar="${AR-${cross_prefix}ar}"
382as="${AS-${cross_prefix}as}"
383ccas="${CCAS-$cc}"
384objcopy="${OBJCOPY-${cross_prefix}objcopy}"
385ld="${LD-${cross_prefix}ld}"
386ranlib="${RANLIB-${cross_prefix}ranlib}"
387nm="${NM-${cross_prefix}nm}"
388smbd="$SMBD"
389strip="${STRIP-${cross_prefix}strip}"
390widl="${WIDL-${cross_prefix}widl}"
391windres="${WINDRES-${cross_prefix}windres}"
392windmc="${WINDMC-${cross_prefix}windmc}"
393pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
394query_pkg_config() {
395    "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
396}
397pkg_config=query_pkg_config
398sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
399
400# default flags for all hosts
401# We use -fwrapv to tell the compiler that we require a C dialect where
402# left shift of signed integers is well defined and has the expected
403# 2s-complement style results. (Both clang and gcc agree that it
404# provides these semantics.)
405QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
406QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
407
408QEMU_LDFLAGS=
409
410# Flags that are needed during configure but later taken care of by Meson
411CONFIGURE_CFLAGS="-std=gnu11 -Wall"
412CONFIGURE_LDFLAGS=
413
414
415check_define() {
416cat > $TMPC <<EOF
417#if !defined($1)
418#error $1 not defined
419#endif
420int main(void) { return 0; }
421EOF
422  compile_object
423}
424
425check_include() {
426cat > $TMPC <<EOF
427#include <$1>
428int main(void) { return 0; }
429EOF
430  compile_object
431}
432
433write_c_skeleton() {
434    cat > $TMPC <<EOF
435int main(void) { return 0; }
436EOF
437}
438
439if check_define __linux__ ; then
440  targetos=linux
441elif check_define _WIN32 ; then
442  targetos=windows
443elif check_define __OpenBSD__ ; then
444  targetos=openbsd
445elif check_define __sun__ ; then
446  targetos=sunos
447elif check_define __HAIKU__ ; then
448  targetos=haiku
449elif check_define __FreeBSD__ ; then
450  targetos=freebsd
451elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
452  targetos=gnu/kfreebsd
453elif check_define __DragonFly__ ; then
454  targetos=dragonfly
455elif check_define __NetBSD__; then
456  targetos=netbsd
457elif check_define __APPLE__; then
458  targetos=darwin
459else
460  # This is a fatal error, but don't report it yet, because we
461  # might be going to just print the --help text, or it might
462  # be the result of a missing compiler.
463  targetos=bogus
464fi
465
466# OS specific
467
468mingw32="no"
469bsd="no"
470linux="no"
471solaris="no"
472case $targetos in
473windows)
474  mingw32="yes"
475  plugins="no"
476  pie="no"
477;;
478gnu/kfreebsd)
479  bsd="yes"
480;;
481freebsd)
482  bsd="yes"
483  make="${MAKE-gmake}"
484  # needed for kinfo_getvmmap(3) in libutil.h
485;;
486dragonfly)
487  bsd="yes"
488  make="${MAKE-gmake}"
489;;
490netbsd)
491  bsd="yes"
492  make="${MAKE-gmake}"
493;;
494openbsd)
495  bsd="yes"
496  make="${MAKE-gmake}"
497;;
498darwin)
499  bsd="yes"
500  darwin="yes"
501  # Disable attempts to use ObjectiveC features in os/object.h since they
502  # won't work when we're compiling with gcc as a C compiler.
503  QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
504;;
505sunos)
506  solaris="yes"
507  make="${MAKE-gmake}"
508# needed for CMSG_ macros in sys/socket.h
509  QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
510# needed for TIOCWIN* defines in termios.h
511  QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
512;;
513haiku)
514  pie="no"
515  QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
516;;
517linux)
518  linux="yes"
519;;
520esac
521
522if test ! -z "$cpu" ; then
523  # command line argument
524  :
525elif check_define __i386__ ; then
526  cpu="i386"
527elif check_define __x86_64__ ; then
528  if check_define __ILP32__ ; then
529    cpu="x32"
530  else
531    cpu="x86_64"
532  fi
533elif check_define __sparc__ ; then
534  if check_define __arch64__ ; then
535    cpu="sparc64"
536  else
537    cpu="sparc"
538  fi
539elif check_define _ARCH_PPC ; then
540  if check_define _ARCH_PPC64 ; then
541    if check_define _LITTLE_ENDIAN ; then
542      cpu="ppc64le"
543    else
544      cpu="ppc64"
545    fi
546  else
547    cpu="ppc"
548  fi
549elif check_define __mips__ ; then
550  cpu="mips"
551elif check_define __s390__ ; then
552  if check_define __s390x__ ; then
553    cpu="s390x"
554  else
555    cpu="s390"
556  fi
557elif check_define __riscv ; then
558  cpu="riscv"
559elif check_define __arm__ ; then
560  cpu="arm"
561elif check_define __aarch64__ ; then
562  cpu="aarch64"
563elif check_define __loongarch64 ; then
564  cpu="loongarch64"
565else
566  # Using uname is really broken, but it is just a fallback for architectures
567  # that are going to use TCI anyway
568  cpu=$(uname -m)
569  echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
570fi
571
572# Normalise host CPU name and set multilib cflags.  The canonicalization
573# isn't really necessary, because the architectures that we check for
574# should not hit the 'uname -m' case, but better safe than sorry.
575# Note that this case should only have supported host CPUs, not guests.
576case "$cpu" in
577  armv*b|armv*l|arm)
578    cpu="arm" ;;
579
580  i386|i486|i586|i686)
581    cpu="i386"
582    CPU_CFLAGS="-m32" ;;
583  x32)
584    cpu="x86_64"
585    CPU_CFLAGS="-mx32" ;;
586  x86_64|amd64)
587    cpu="x86_64"
588    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
589    # If we truly care, we should simply detect this case at
590    # runtime and generate the fallback to serial emulation.
591    CPU_CFLAGS="-m64 -mcx16" ;;
592
593  mips*)
594    cpu="mips" ;;
595
596  ppc)
597    CPU_CFLAGS="-m32" ;;
598  ppc64)
599    CPU_CFLAGS="-m64 -mbig-endian" ;;
600  ppc64le)
601    cpu="ppc64"
602    CPU_CFLAGS="-m64 -mlittle-endian" ;;
603
604  s390)
605    CPU_CFLAGS="-m31" ;;
606  s390x)
607    CPU_CFLAGS="-m64" ;;
608
609  sparc|sun4[cdmuv])
610    cpu="sparc"
611    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
612  sparc64)
613    CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
614esac
615
616: ${make=${MAKE-make}}
617
618
619check_py_version() {
620    # We require python >= 3.6.
621    # NB: a True python conditional creates a non-zero return code (Failure)
622    "$1" -c 'import sys; sys.exit(sys.version_info < (3,6))'
623}
624
625python=
626first_python=
627if test -z "${PYTHON}"; then
628    explicit_python=no
629    # A bare 'python' is traditionally python 2.x, but some distros
630    # have it as python 3.x, so check in both places.
631    for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7 python3.6; do
632        if has "$binary"; then
633            python=$(command -v "$binary")
634            if check_py_version "$python"; then
635                # This one is good.
636                first_python=
637                break
638            else
639                first_python=$python
640            fi
641        fi
642    done
643else
644    # Same as above, but only check the environment variable.
645    has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
646    python=$(command -v "$PYTHON")
647    explicit_python=yes
648    if check_py_version "$python"; then
649        # This one is good.
650        first_python=
651    else
652        first_python=$first_python
653    fi
654fi
655
656# Check for ancillary tools used in testing
657genisoimage=
658for binary in genisoimage mkisofs
659do
660    if has $binary
661    then
662        genisoimage=$(command -v "$binary")
663        break
664    fi
665done
666
667if test "$mingw32" = "yes" ; then
668  EXESUF=".exe"
669  # MinGW needs -mthreads for TLS and macro _MT.
670  CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
671  prefix="/qemu"
672  bindir=""
673  qemu_suffix=""
674fi
675
676werror=""
677
678meson_option_build_array() {
679  printf '['
680  (if test "$targetos" = windows; then
681    IFS=\;
682  else
683    IFS=:
684  fi
685  for e in $1; do
686    printf '"""'
687    # backslash escape any '\' and '"' characters
688    printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
689    printf '""",'
690  done)
691  printf ']\n'
692}
693
694. "$source_path/scripts/meson-buildoptions.sh"
695
696meson_options=
697meson_option_add() {
698  meson_options="$meson_options $(quote_sh "$1")"
699}
700meson_option_parse() {
701  meson_options="$meson_options $(_meson_option_parse "$@")"
702  if test $? -eq 1; then
703    echo "ERROR: unknown option $1"
704    echo "Try '$0 --help' for more information"
705    exit 1
706  fi
707}
708
709for opt do
710  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
711  case "$opt" in
712  --help|-h) show_help=yes
713  ;;
714  --version|-V) exec cat "$source_path/VERSION"
715  ;;
716  --prefix=*) prefix="$optarg"
717  ;;
718  --cross-prefix=*)
719  ;;
720  --cc=*)
721  ;;
722  --host-cc=*) host_cc="$optarg"
723  ;;
724  --cxx=*)
725  ;;
726  --objcc=*)
727  ;;
728  --make=*) make="$optarg"
729  ;;
730  --install=*)
731  ;;
732  --python=*) python="$optarg" ; explicit_python=yes
733  ;;
734  --skip-meson) skip_meson=yes
735  ;;
736  --meson=*) meson="$optarg"
737  ;;
738  --ninja=*) ninja="$optarg"
739  ;;
740  --smbd=*) smbd="$optarg"
741  ;;
742  --extra-cflags=*)
743  ;;
744  --extra-cxxflags=*)
745  ;;
746  --extra-objcflags=*)
747  ;;
748  --extra-ldflags=*)
749  ;;
750  --cross-cc-*)
751  ;;
752  --cross-prefix-*)
753  ;;
754  --enable-debug-info) meson_option_add -Ddebug=true
755  ;;
756  --disable-debug-info) meson_option_add -Ddebug=false
757  ;;
758  --enable-modules)
759      modules="yes"
760  ;;
761  --disable-modules)
762      modules="no"
763  ;;
764  --cpu=*)
765  ;;
766  --target-list=*) target_list="$optarg"
767                   if test "$target_list_exclude"; then
768                       error_exit "Can't mix --target-list with --target-list-exclude"
769                   fi
770  ;;
771  --target-list-exclude=*) target_list_exclude="$optarg"
772                   if test "$target_list"; then
773                       error_exit "Can't mix --target-list-exclude with --target-list"
774                   fi
775  ;;
776  --with-default-devices) meson_option_add -Ddefault_devices=true
777  ;;
778  --without-default-devices) meson_option_add -Ddefault_devices=false
779  ;;
780  --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
781  ;;
782  --with-devices-*) device_arch=${opt#--with-devices-};
783                    device_arch=${device_arch%%=*}
784                    cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
785                    if test -f "$cf"; then
786                        device_archs="$device_archs $device_arch"
787                        eval "devices_${device_arch}=\$optarg"
788                    else
789                        error_exit "File $cf does not exist"
790                    fi
791  ;;
792  --without-default-features) # processed above
793  ;;
794  --static)
795    static="yes"
796    QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
797  ;;
798  --bindir=*) bindir="$optarg"
799  ;;
800  --with-suffix=*) qemu_suffix="$optarg"
801  ;;
802  --host=*|--build=*|\
803  --disable-dependency-tracking|\
804  --sbindir=*|--sharedstatedir=*|\
805  --oldincludedir=*|--datarootdir=*|--infodir=*|\
806  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
807    # These switches are silently ignored, for compatibility with
808    # autoconf-generated configure scripts. This allows QEMU's
809    # configure to be used by RPM and similar macros that set
810    # lots of directory switches by default.
811  ;;
812  --enable-debug-tcg) debug_tcg="yes"
813  ;;
814  --disable-debug-tcg) debug_tcg="no"
815  ;;
816  --enable-debug)
817      # Enable debugging options that aren't excessively noisy
818      debug_tcg="yes"
819      meson_option_parse --enable-debug-mutex ""
820      meson_option_add -Doptimization=0
821      fortify_source="no"
822  ;;
823  --enable-sanitizers) sanitizers="yes"
824  ;;
825  --disable-sanitizers) sanitizers="no"
826  ;;
827  --enable-tsan) tsan="yes"
828  ;;
829  --disable-tsan) tsan="no"
830  ;;
831  --disable-tcg) tcg="disabled"
832                 plugins="no"
833  ;;
834  --enable-tcg) tcg="enabled"
835  ;;
836  --disable-system) softmmu="no"
837  ;;
838  --enable-system) softmmu="yes"
839  ;;
840  --disable-user)
841      linux_user="no" ;
842      bsd_user="no" ;
843  ;;
844  --enable-user) ;;
845  --disable-linux-user) linux_user="no"
846  ;;
847  --enable-linux-user) linux_user="yes"
848  ;;
849  --disable-bsd-user) bsd_user="no"
850  ;;
851  --enable-bsd-user) bsd_user="yes"
852  ;;
853  --enable-pie) pie="yes"
854  ;;
855  --disable-pie) pie="no"
856  ;;
857  --enable-werror) werror="yes"
858  ;;
859  --disable-werror) werror="no"
860  ;;
861  --enable-stack-protector) stack_protector="yes"
862  ;;
863  --disable-stack-protector) stack_protector="no"
864  ;;
865  --enable-safe-stack) safe_stack="yes"
866  ;;
867  --disable-safe-stack) safe_stack="no"
868  ;;
869  --enable-cfi)
870      cfi="true";
871      meson_option_add -Db_lto=true
872  ;;
873  --disable-cfi) cfi="false"
874  ;;
875  --disable-fdt) fdt="disabled"
876  ;;
877  --enable-fdt) fdt="enabled"
878  ;;
879  --enable-fdt=git) fdt="internal"
880  ;;
881  --enable-fdt=*) fdt="$optarg"
882  ;;
883  --with-coroutine=*) coroutine="$optarg"
884  ;;
885  --with-git=*) git="$optarg"
886  ;;
887  --with-git-submodules=*)
888      git_submodules_action="$optarg"
889  ;;
890  --enable-plugins) if test "$mingw32" = "yes"; then
891                        error_exit "TCG plugins not currently supported on Windows platforms"
892                    else
893                        plugins="yes"
894                    fi
895  ;;
896  --disable-plugins) plugins="no"
897  ;;
898  --enable-containers) use_containers="yes"
899  ;;
900  --disable-containers) use_containers="no"
901  ;;
902  --gdb=*) gdb_bin="$optarg"
903  ;;
904  --enable-vfio-user-server) vfio_user_server="enabled"
905  ;;
906  --disable-vfio-user-server) vfio_user_server="disabled"
907  ;;
908  # everything else has the same name in configure and meson
909  --*) meson_option_parse "$opt" "$optarg"
910  ;;
911  esac
912done
913
914# test for any invalid configuration combinations
915if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
916    error_exit "Can't enable plugins on non-TCG builds"
917fi
918
919case $git_submodules_action in
920    update|validate)
921        if test ! -e "$source_path/.git"; then
922            echo "ERROR: cannot $git_submodules_action git submodules without .git"
923            exit 1
924        fi
925    ;;
926    ignore)
927        if ! test -f "$source_path/ui/keycodemapdb/README"
928        then
929            echo
930            echo "ERROR: missing GIT submodules"
931            echo
932            if test -e "$source_path/.git"; then
933                echo "--with-git-submodules=ignore specified but submodules were not"
934                echo "checked out.  Please initialize and update submodules."
935            else
936                echo "This is not a GIT checkout but module content appears to"
937                echo "be missing. Do not use 'git archive' or GitHub download links"
938                echo "to acquire QEMU source archives. Non-GIT builds are only"
939                echo "supported with source archives linked from:"
940                echo
941                echo "  https://www.qemu.org/download/#source"
942                echo
943                echo "Developers working with GIT can use scripts/archive-source.sh"
944                echo "if they need to create valid source archives."
945            fi
946            echo
947            exit 1
948        fi
949    ;;
950    *)
951        echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
952        exit 1
953    ;;
954esac
955
956default_target_list=""
957mak_wilds=""
958
959if [ "$linux_user" != no ]; then
960    if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
961        linux_user=yes
962    elif [ "$linux_user" = yes ]; then
963        error_exit "linux-user not supported on this architecture"
964    fi
965fi
966if [ "$bsd_user" != no ]; then
967    if [ "$bsd_user" = "" ]; then
968        test $targetos = freebsd && bsd_user=yes
969    fi
970    if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
971        error_exit "bsd-user not supported on this host OS"
972    fi
973fi
974if [ "$softmmu" = "yes" ]; then
975    mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
976fi
977if [ "$linux_user" = "yes" ]; then
978    mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
979fi
980if [ "$bsd_user" = "yes" ]; then
981    mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
982fi
983
984for config in $mak_wilds; do
985    target="$(basename "$config" .mak)"
986    if echo "$target_list_exclude" | grep -vq "$target"; then
987        default_target_list="${default_target_list} $target"
988    fi
989done
990
991if test x"$show_help" = x"yes" ; then
992cat << EOF
993
994Usage: configure [options]
995Options: [defaults in brackets after descriptions]
996
997Standard options:
998  --help                   print this message
999  --prefix=PREFIX          install in PREFIX [$prefix]
1000  --target-list=LIST       set target list (default: build all)
1001$(echo Available targets: $default_target_list | \
1002  fold -s -w 53 | sed -e 's/^/                           /')
1003  --target-list-exclude=LIST exclude a set of targets from the default target-list
1004
1005Advanced options (experts only):
1006  --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1007  --cc=CC                  use C compiler CC [$cc]
1008  --host-cc=CC             use C compiler CC [$host_cc] for code run at
1009                           build time
1010  --cxx=CXX                use C++ compiler CXX [$cxx]
1011  --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1012  --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1013  --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1014  --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1015  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1016  --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1017  --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1018  --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1019  --make=MAKE              use specified make [$make]
1020  --python=PYTHON          use specified python [$python]
1021  --meson=MESON            use specified meson [$meson]
1022  --ninja=NINJA            use specified ninja [$ninja]
1023  --smbd=SMBD              use specified smbd [$smbd]
1024  --with-git=GIT           use specified git [$git]
1025  --with-git-submodules=update   update git submodules (default if .git dir exists)
1026  --with-git-submodules=validate fail if git submodules are not up to date
1027  --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1028  --static                 enable static build [$static]
1029  --bindir=PATH            install binaries in PATH
1030  --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1031  --without-default-features default all --enable-* options to "disabled"
1032  --without-default-devices  do not include any device that is not needed to
1033                           start the emulator (only use if you are including
1034                           desired devices in configs/devices/)
1035  --with-devices-ARCH=NAME override default configs/devices
1036  --enable-debug           enable common debug build options
1037  --enable-sanitizers      enable default sanitizers
1038  --enable-tsan            enable thread sanitizer
1039  --disable-werror         disable compilation abort on warning
1040  --disable-stack-protector disable compiler-provided stack protection
1041  --cpu=CPU                Build for host CPU [$cpu]
1042  --with-coroutine=BACKEND coroutine backend. Supported options:
1043                           ucontext, sigaltstack, windows
1044  --enable-plugins
1045                           enable plugins via shared library loading
1046  --disable-containers     don't use containers for cross-building
1047  --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1048EOF
1049  meson_options_help
1050cat << EOF
1051  system          all system emulation targets
1052  user            supported user emulation targets
1053  linux-user      all linux usermode emulation targets
1054  bsd-user        all BSD usermode emulation targets
1055  pie             Position Independent Executables
1056  modules         modules support (non-Windows)
1057  debug-tcg       TCG debugging (default is disabled)
1058  debug-info      debugging information
1059  safe-stack      SafeStack Stack Smash Protection. Depends on
1060                  clang/llvm and requires coroutine backend ucontext.
1061
1062NOTE: The object files are built at the place where configure is launched
1063EOF
1064exit 0
1065fi
1066
1067# Remove old dependency files to make sure that they get properly regenerated
1068rm -f ./*/config-devices.mak.d
1069
1070if test -z "$python"
1071then
1072    # If first_python is set, there was a binary somewhere even though
1073    # it was not suitable.  Use it for the error message.
1074    if test -n "$first_python"; then
1075        error_exit "Cannot use '$first_python', Python >= 3.6 is required." \
1076            "Use --python=/path/to/python to specify a supported Python."
1077    else
1078        error_exit "Python not found. Use --python=/path/to/python"
1079    fi
1080fi
1081
1082if ! has "$make"
1083then
1084    error_exit "GNU make ($make) not found"
1085fi
1086
1087if ! check_py_version "$python"; then
1088  error_exit "Cannot use '$python', Python >= 3.6 is required." \
1089      "Use --python=/path/to/python to specify a supported Python."
1090fi
1091
1092# Resolve PATH + suppress writing compiled files
1093python="$(command -v "$python") -B"
1094
1095has_meson() {
1096  local python_dir=$(dirname "$python")
1097  # PEP405: pyvenv.cfg is either adjacent to the Python executable
1098  # or one directory above
1099  if test -f $python_dir/pyvenv.cfg || test -f $python_dir/../pyvenv.cfg; then
1100    # Ensure that Meson and Python come from the same virtual environment
1101    test -x "$python_dir/meson" &&
1102      test "$(command -v meson)" -ef "$python_dir/meson"
1103  else
1104    has meson
1105  fi
1106}
1107
1108if test -z "$meson"; then
1109    if test "$explicit_python" = no && has_meson && version_ge "$(meson --version)" 0.61.5; then
1110        meson=meson
1111    elif test "$git_submodules_action" != 'ignore' ; then
1112        meson=git
1113    elif test -e "${source_path}/meson/meson.py" ; then
1114        meson=internal
1115    else
1116        if test "$explicit_python" = yes; then
1117            error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1118        else
1119            error_exit "Meson not found.  Use --meson=/path/to/meson"
1120        fi
1121    fi
1122else
1123    # Meson uses its own Python interpreter to invoke other Python scripts,
1124    # but the user wants to use the one they specified with --python.
1125    #
1126    # We do not want to override the distro Python interpreter (and sometimes
1127    # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1128    # just require --meson=git|internal together with --python.
1129    if test "$explicit_python" = yes; then
1130        case "$meson" in
1131            git | internal) ;;
1132            *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1133        esac
1134    fi
1135fi
1136
1137if test "$meson" = git; then
1138    git_submodules="${git_submodules} meson"
1139fi
1140
1141case "$meson" in
1142    git | internal)
1143        meson="$python ${source_path}/meson/meson.py"
1144        ;;
1145    *) meson=$(command -v "$meson") ;;
1146esac
1147
1148# Probe for ninja
1149
1150if test -z "$ninja"; then
1151    for c in ninja ninja-build samu; do
1152        if has $c; then
1153            ninja=$(command -v "$c")
1154            break
1155        fi
1156    done
1157    if test -z "$ninja"; then
1158      error_exit "Cannot find Ninja"
1159    fi
1160fi
1161
1162# Check that the C compiler works. Doing this here before testing
1163# the host CPU ensures that we had a valid CC to autodetect the
1164# $cpu var (and we should bail right here if that's not the case).
1165# It also allows the help message to be printed without a CC.
1166write_c_skeleton;
1167if compile_object ; then
1168  : C compiler works ok
1169else
1170    error_exit "\"$cc\" either does not exist or does not work"
1171fi
1172if ! compile_prog ; then
1173    error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1174fi
1175
1176# Consult white-list to determine whether to enable werror
1177# by default.  Only enable by default for git builds
1178if test -z "$werror" ; then
1179    if test "$git_submodules_action" != "ignore" && \
1180        { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1181        werror="yes"
1182    else
1183        werror="no"
1184    fi
1185fi
1186
1187if test "$targetos" = "bogus"; then
1188    # Now that we know that we're not printing the help and that
1189    # the compiler works (so the results of the check_defines we used
1190    # to identify the OS are reliable), if we didn't recognize the
1191    # host OS we should stop now.
1192    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1193fi
1194
1195# Check whether the compiler matches our minimum requirements:
1196cat > $TMPC << EOF
1197#if defined(__clang_major__) && defined(__clang_minor__)
1198# ifdef __apple_build_version__
1199#  if __clang_major__ < 12 || (__clang_major__ == 12 && __clang_minor__ < 0)
1200#   error You need at least XCode Clang v12.0 to compile QEMU
1201#  endif
1202# else
1203#  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1204#   error You need at least Clang v10.0 to compile QEMU
1205#  endif
1206# endif
1207#elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1208# if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1209#  error You need at least GCC v7.4.0 to compile QEMU
1210# endif
1211#else
1212# error You either need GCC or Clang to compiler QEMU
1213#endif
1214int main (void) { return 0; }
1215EOF
1216if ! compile_prog "" "" ; then
1217    error_exit "You need at least GCC v7.4 or Clang v10.0 (or XCode Clang v12.0)"
1218fi
1219
1220# Accumulate -Wfoo and -Wno-bar separately.
1221# We will list all of the enable flags first, and the disable flags second.
1222# Note that we do not add -Werror, because that would enable it for all
1223# configure tests. If a configure test failed due to -Werror this would
1224# just silently disable some features, so it's too error prone.
1225
1226warn_flags=
1227add_to warn_flags -Wundef
1228add_to warn_flags -Wwrite-strings
1229add_to warn_flags -Wmissing-prototypes
1230add_to warn_flags -Wstrict-prototypes
1231add_to warn_flags -Wredundant-decls
1232add_to warn_flags -Wold-style-declaration
1233add_to warn_flags -Wold-style-definition
1234add_to warn_flags -Wtype-limits
1235add_to warn_flags -Wformat-security
1236add_to warn_flags -Wformat-y2k
1237add_to warn_flags -Winit-self
1238add_to warn_flags -Wignored-qualifiers
1239add_to warn_flags -Wempty-body
1240add_to warn_flags -Wnested-externs
1241add_to warn_flags -Wendif-labels
1242add_to warn_flags -Wexpansion-to-defined
1243add_to warn_flags -Wimplicit-fallthrough=2
1244add_to warn_flags -Wmissing-format-attribute
1245
1246if test "$targetos" != "darwin"; then
1247    add_to warn_flags -Wthread-safety
1248fi
1249
1250nowarn_flags=
1251add_to nowarn_flags -Wno-initializer-overrides
1252add_to nowarn_flags -Wno-missing-include-dirs
1253add_to nowarn_flags -Wno-shift-negative-value
1254add_to nowarn_flags -Wno-string-plus-int
1255add_to nowarn_flags -Wno-typedef-redefinition
1256add_to nowarn_flags -Wno-tautological-type-limit-compare
1257add_to nowarn_flags -Wno-psabi
1258add_to nowarn_flags -Wno-gnu-variable-sized-type-not-at-end
1259
1260gcc_flags="$warn_flags $nowarn_flags"
1261
1262cc_has_warning_flag() {
1263    write_c_skeleton;
1264
1265    # Use the positive sense of the flag when testing for -Wno-wombat
1266    # support (gcc will happily accept the -Wno- form of unknown
1267    # warning options).
1268    optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1269    compile_prog "-Werror $optflag" ""
1270}
1271
1272objcc_has_warning_flag() {
1273    cat > $TMPM <<EOF
1274int main(void) { return 0; }
1275EOF
1276
1277    # Use the positive sense of the flag when testing for -Wno-wombat
1278    # support (gcc will happily accept the -Wno- form of unknown
1279    # warning options).
1280    optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1281    do_objc -Werror $optflag \
1282      $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1283      -o $TMPE $TMPM $QEMU_LDFLAGS
1284}
1285
1286for flag in $gcc_flags; do
1287    if cc_has_warning_flag $flag ; then
1288        QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1289    fi
1290    if objcc_has_warning_flag $flag ; then
1291        QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1292    fi
1293done
1294
1295if test "$stack_protector" != "no"; then
1296  cat > $TMPC << EOF
1297int main(int argc, char *argv[])
1298{
1299    char arr[64], *p = arr, *c = argv[argc - 1];
1300    while (*c) {
1301        *p++ = *c++;
1302    }
1303    return 0;
1304}
1305EOF
1306  gcc_flags="-fstack-protector-strong -fstack-protector-all"
1307  sp_on=0
1308  for flag in $gcc_flags; do
1309    # We need to check both a compile and a link, since some compiler
1310    # setups fail only on a .c->.o compile and some only at link time
1311    if compile_object "-Werror $flag" &&
1312       compile_prog "-Werror $flag" ""; then
1313      QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1314      QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1315      sp_on=1
1316      break
1317    fi
1318  done
1319  if test "$stack_protector" = yes; then
1320    if test $sp_on = 0; then
1321      error_exit "Stack protector not supported"
1322    fi
1323  fi
1324fi
1325
1326# Our module code doesn't support Windows
1327if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1328  error_exit "Modules are not available for Windows"
1329fi
1330
1331# Static linking is not possible with plugins, modules or PIE
1332if test "$static" = "yes" ; then
1333  if test "$modules" = "yes" ; then
1334    error_exit "static and modules are mutually incompatible"
1335  fi
1336  if test "$plugins" = "yes"; then
1337    error_exit "static and plugins are mutually incompatible"
1338  else
1339    plugins="no"
1340  fi
1341fi
1342test "$plugins" = "" && plugins=yes
1343
1344cat > $TMPC << EOF
1345
1346#ifdef __linux__
1347#  define THREAD __thread
1348#else
1349#  define THREAD
1350#endif
1351static THREAD int tls_var;
1352int main(void) { return tls_var; }
1353EOF
1354
1355# Meson currently only handles pie as a boolean for now so if we have
1356# explicitly disabled PIE we need to extend our cflags because it wont.
1357if test "$static" = "yes"; then
1358  if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1359    CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1360    pie="yes"
1361  elif test "$pie" = "yes"; then
1362    error_exit "-static-pie not available due to missing toolchain support"
1363  else
1364    pie="no"
1365    QEMU_CFLAGS="-fno-pie $QEMU_CFLAGS"
1366  fi
1367elif test "$pie" = "no"; then
1368  if compile_prog "-Werror -fno-pie" "-no-pie"; then
1369    CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1370    CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
1371    QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1372  fi
1373elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1374  CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1375  CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1376  pie="yes"
1377elif test "$pie" = "yes"; then
1378  error_exit "PIE not available due to missing toolchain support"
1379else
1380  echo "Disabling PIE due to missing toolchain support"
1381  pie="no"
1382fi
1383
1384##########################################
1385# __sync_fetch_and_and requires at least -march=i486. Many toolchains
1386# use i686 as default anyway, but for those that don't, an explicit
1387# specification is necessary
1388
1389if test "$cpu" = "i386"; then
1390  cat > $TMPC << EOF
1391static int sfaa(int *ptr)
1392{
1393  return __sync_fetch_and_and(ptr, 0);
1394}
1395
1396int main(void)
1397{
1398  int val = 42;
1399  val = __sync_val_compare_and_swap(&val, 0, 1);
1400  sfaa(&val);
1401  return val;
1402}
1403EOF
1404  if ! compile_prog "" "" ; then
1405    QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1406  fi
1407fi
1408
1409if test -z "${target_list+xxx}" ; then
1410    default_targets=yes
1411    for target in $default_target_list; do
1412        target_list="$target_list $target"
1413    done
1414    target_list="${target_list# }"
1415else
1416    default_targets=no
1417    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1418    for target in $target_list; do
1419        # Check that we recognised the target name; this allows a more
1420        # friendly error message than if we let it fall through.
1421        case " $default_target_list " in
1422            *" $target "*)
1423                ;;
1424            *)
1425                error_exit "Unknown target name '$target'"
1426                ;;
1427        esac
1428    done
1429fi
1430
1431# see if system emulation was really requested
1432case " $target_list " in
1433  *"-softmmu "*) softmmu=yes
1434  ;;
1435  *) softmmu=no
1436  ;;
1437esac
1438
1439if test "$tcg" = "auto"; then
1440  if test -z "$target_list"; then
1441    tcg="disabled"
1442  else
1443    tcg="enabled"
1444  fi
1445fi
1446
1447if test "$tcg" = "enabled"; then
1448    git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1449    git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1450fi
1451
1452##########################################
1453# big/little endian test
1454cat > $TMPC << EOF
1455#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1456# error LITTLE
1457#endif
1458int main(void) { return 0; }
1459EOF
1460
1461if ! compile_prog ; then
1462  bigendian="no"
1463else
1464  cat > $TMPC << EOF
1465#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1466# error BIG
1467#endif
1468int main(void) { return 0; }
1469EOF
1470
1471  if ! compile_prog ; then
1472    bigendian="yes"
1473  else
1474    echo big/little test failed
1475    exit 1
1476  fi
1477fi
1478
1479##########################################
1480# pkg-config probe
1481
1482if ! has "$pkg_config_exe"; then
1483  error_exit "pkg-config binary '$pkg_config_exe' not found"
1484fi
1485
1486##########################################
1487# glib support probe
1488
1489# When bumping glib_req_ver, please check also whether we should increase
1490# the _WIN32_WINNT setting in osdep.h according to the value from glib
1491glib_req_ver=2.56
1492glib_modules=gthread-2.0
1493if test "$modules" = yes; then
1494    glib_modules="$glib_modules gmodule-export-2.0"
1495elif test "$plugins" = "yes"; then
1496    glib_modules="$glib_modules gmodule-no-export-2.0"
1497fi
1498
1499for i in $glib_modules; do
1500    if $pkg_config --atleast-version=$glib_req_ver $i; then
1501        glib_cflags=$($pkg_config --cflags $i)
1502        glib_libs=$($pkg_config --libs $i)
1503    else
1504        error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1505    fi
1506done
1507
1508# Check whether glib has gslice, which we have to avoid for correctness.
1509# TODO: remove this check and the corresponding workaround (qtree) when
1510# the minimum supported glib is >= $glib_dropped_gslice_version.
1511glib_dropped_gslice_version=2.75.3
1512for i in $glib_modules; do
1513    if ! $pkg_config --atleast-version=$glib_dropped_gslice_version $i; then
1514        glib_has_gslice="yes"
1515	break
1516    fi
1517done
1518
1519glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1520if test -z "$glib_bindir" ; then
1521	glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1522fi
1523
1524# This workaround is required due to a bug in pkg-config file for glib as it
1525# doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1526
1527if test "$static" = yes && test "$mingw32" = yes; then
1528    glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1529fi
1530
1531# Sanity check that the current size_t matches the
1532# size that glib thinks it should be. This catches
1533# problems on multi-arch where people try to build
1534# 32-bit QEMU while pointing at 64-bit glib headers
1535cat > $TMPC <<EOF
1536#include <glib.h>
1537#include <unistd.h>
1538
1539#define QEMU_BUILD_BUG_ON(x) \
1540  typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1541
1542int main(void) {
1543   QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1544   return 0;
1545}
1546EOF
1547
1548if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1549    error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1550               "You probably need to set PKG_CONFIG_LIBDIR"\
1551	       "to point to the right pkg-config files for your"\
1552	       "build target"
1553fi
1554
1555# Silence clang warnings triggered by glib < 2.57.2
1556cat > $TMPC << EOF
1557#include <glib.h>
1558typedef struct Foo {
1559    int i;
1560} Foo;
1561static void foo_free(Foo *f)
1562{
1563    g_free(f);
1564}
1565G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1566int main(void) { return 0; }
1567EOF
1568if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1569    if cc_has_warning_flag "-Wno-unused-function"; then
1570        glib_cflags="$glib_cflags -Wno-unused-function"
1571        CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1572    fi
1573fi
1574
1575##########################################
1576# fdt probe
1577
1578case "$fdt" in
1579  auto | enabled | internal)
1580    # Simpler to always update submodule, even if not needed.
1581    git_submodules="${git_submodules} dtc"
1582    ;;
1583esac
1584
1585##########################################
1586# check and set a backend for coroutine
1587
1588# We prefer ucontext, but it's not always possible. The fallback
1589# is sigcontext. On Windows the only valid backend is the Windows
1590# specific one.
1591
1592ucontext_works=no
1593if test "$darwin" != "yes"; then
1594  cat > $TMPC << EOF
1595#include <ucontext.h>
1596#ifdef __stub_makecontext
1597#error Ignoring glibc stub makecontext which will always fail
1598#endif
1599int main(void) { makecontext(0, 0, 0); return 0; }
1600EOF
1601  if compile_prog "" "" ; then
1602    ucontext_works=yes
1603  fi
1604fi
1605
1606if test "$coroutine" = ""; then
1607  if test "$mingw32" = "yes"; then
1608    coroutine=win32
1609  elif test "$ucontext_works" = "yes"; then
1610    coroutine=ucontext
1611  else
1612    coroutine=sigaltstack
1613  fi
1614else
1615  case $coroutine in
1616  windows)
1617    if test "$mingw32" != "yes"; then
1618      error_exit "'windows' coroutine backend only valid for Windows"
1619    fi
1620    # Unfortunately the user visible backend name doesn't match the
1621    # coroutine-*.c filename for this case, so we have to adjust it here.
1622    coroutine=win32
1623    ;;
1624  ucontext)
1625    if test "$ucontext_works" != "yes"; then
1626      error_exit "'ucontext' backend requested but makecontext not available"
1627    fi
1628    ;;
1629  sigaltstack)
1630    if test "$mingw32" = "yes"; then
1631      error_exit "only the 'windows' coroutine backend is valid for Windows"
1632    fi
1633    ;;
1634  *)
1635    error_exit "unknown coroutine backend $coroutine"
1636    ;;
1637  esac
1638fi
1639
1640##################################################
1641# SafeStack
1642
1643
1644if test "$safe_stack" = "yes"; then
1645cat > $TMPC << EOF
1646int main(void)
1647{
1648#if ! __has_feature(safe_stack)
1649#error SafeStack Disabled
1650#endif
1651    return 0;
1652}
1653EOF
1654  flag="-fsanitize=safe-stack"
1655  # Check that safe-stack is supported and enabled.
1656  if compile_prog "-Werror $flag" "$flag"; then
1657    # Flag needed both at compilation and at linking
1658    QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1659    QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1660  else
1661    error_exit "SafeStack not supported by your compiler"
1662  fi
1663  if test "$coroutine" != "ucontext"; then
1664    error_exit "SafeStack is only supported by the coroutine backend ucontext"
1665  fi
1666else
1667cat > $TMPC << EOF
1668int main(void)
1669{
1670#if defined(__has_feature)
1671#if __has_feature(safe_stack)
1672#error SafeStack Enabled
1673#endif
1674#endif
1675    return 0;
1676}
1677EOF
1678if test "$safe_stack" = "no"; then
1679  # Make sure that safe-stack is disabled
1680  if ! compile_prog "-Werror" ""; then
1681    # SafeStack was already enabled, try to explicitly remove the feature
1682    flag="-fno-sanitize=safe-stack"
1683    if ! compile_prog "-Werror $flag" "$flag"; then
1684      error_exit "Configure cannot disable SafeStack"
1685    fi
1686    QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1687    QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1688  fi
1689else # "$safe_stack" = ""
1690  # Set safe_stack to yes or no based on pre-existing flags
1691  if compile_prog "-Werror" ""; then
1692    safe_stack="no"
1693  else
1694    safe_stack="yes"
1695    if test "$coroutine" != "ucontext"; then
1696      error_exit "SafeStack is only supported by the coroutine backend ucontext"
1697    fi
1698  fi
1699fi
1700fi
1701
1702########################################
1703# check if ccache is interfering with
1704# semantic analysis of macros
1705
1706unset CCACHE_CPP2
1707ccache_cpp2=no
1708cat > $TMPC << EOF
1709static const int Z = 1;
1710#define fn() ({ Z; })
1711#define TAUT(X) ((X) == Z)
1712#define PAREN(X, Y) (X == Y)
1713#define ID(X) (X)
1714int main(void)
1715{
1716    int x = 0, y = 0;
1717    x = ID(x);
1718    x = fn();
1719    fn();
1720    if (PAREN(x, y)) return 0;
1721    if (TAUT(Z)) return 0;
1722    return 0;
1723}
1724EOF
1725
1726if ! compile_object "-Werror"; then
1727    ccache_cpp2=yes
1728fi
1729
1730#################################################
1731# clang does not support glibc + FORTIFY_SOURCE.
1732
1733if test "$fortify_source" != "no"; then
1734  if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1735    fortify_source="no";
1736  elif test -n "$cxx" && has $cxx &&
1737       echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1738    fortify_source="no";
1739  else
1740    fortify_source="yes"
1741  fi
1742fi
1743
1744##########################################
1745# checks for sanitizers
1746
1747have_asan=no
1748have_ubsan=no
1749have_asan_iface_h=no
1750have_asan_iface_fiber=no
1751
1752if test "$sanitizers" = "yes" ; then
1753  write_c_skeleton
1754  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1755      have_asan=yes
1756  fi
1757
1758  # we could use a simple skeleton for flags checks, but this also
1759  # detect the static linking issue of ubsan, see also:
1760  # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1761  cat > $TMPC << EOF
1762int main(int argc, char **argv)
1763{
1764    return argc + 1;
1765}
1766EOF
1767  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1768      have_ubsan=yes
1769  fi
1770
1771  if check_include "sanitizer/asan_interface.h" ; then
1772      have_asan_iface_h=yes
1773  fi
1774
1775  cat > $TMPC << EOF
1776#include <sanitizer/asan_interface.h>
1777int main(void) {
1778  __sanitizer_start_switch_fiber(0, 0, 0);
1779  return 0;
1780}
1781EOF
1782  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1783      have_asan_iface_fiber=yes
1784  fi
1785fi
1786
1787# Thread sanitizer is, for now, much noisier than the other sanitizers;
1788# keep it separate until that is not the case.
1789if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1790  error_exit "TSAN is not supported with other sanitiziers."
1791fi
1792have_tsan=no
1793have_tsan_iface_fiber=no
1794if test "$tsan" = "yes" ; then
1795  write_c_skeleton
1796  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1797      have_tsan=yes
1798  fi
1799  cat > $TMPC << EOF
1800#include <sanitizer/tsan_interface.h>
1801int main(void) {
1802  __tsan_create_fiber(0);
1803  return 0;
1804}
1805EOF
1806  if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1807      have_tsan_iface_fiber=yes
1808  fi
1809fi
1810
1811##########################################
1812# functions to probe cross compilers
1813
1814container="no"
1815runc=""
1816if test $use_containers = "yes" && (has "docker" || has "podman"); then
1817    case $($python "$source_path"/tests/docker/docker.py probe) in
1818        *docker) container=docker ;;
1819        podman) container=podman ;;
1820        no) container=no ;;
1821    esac
1822    if test "$container" != "no"; then
1823        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1824        runc=$($python "$source_path"/tests/docker/docker.py probe)
1825    fi
1826fi
1827
1828# cross compilers defaults, can be overridden with --cross-cc-ARCH
1829: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1830: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1831: ${cross_prefix_alpha="alpha-linux-gnu-"}
1832: ${cross_prefix_arm="arm-linux-gnueabihf-"}
1833: ${cross_prefix_armeb="$cross_prefix_arm"}
1834: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1835: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1836: ${cross_prefix_hppa="hppa-linux-gnu-"}
1837: ${cross_prefix_i386="i686-linux-gnu-"}
1838: ${cross_prefix_m68k="m68k-linux-gnu-"}
1839: ${cross_prefix_microblaze="microblaze-linux-musl-"}
1840: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1841: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1842: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1843: ${cross_prefix_mips="mips-linux-gnu-"}
1844: ${cross_prefix_nios2="nios2-linux-gnu-"}
1845: ${cross_prefix_ppc="powerpc-linux-gnu-"}
1846: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1847: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1848: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1849: ${cross_prefix_s390x="s390x-linux-gnu-"}
1850: ${cross_prefix_sh4="sh4-linux-gnu-"}
1851: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1852: ${cross_prefix_sparc="$cross_prefix_sparc64"}
1853: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1854
1855: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1856: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1857: ${cross_cc_armeb="$cross_cc_arm"}
1858: ${cross_cc_cflags_armeb="-mbig-endian"}
1859: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1860: ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1861: ${cross_cc_cflags_i386="-m32"}
1862: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1863: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1864: ${cross_cc_ppc64le="$cross_cc_ppc64"}
1865: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1866: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1867: ${cross_cc_sparc="$cross_cc_sparc64"}
1868: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1869: ${cross_cc_cflags_x86_64="-m64"}
1870
1871compute_target_variable() {
1872  eval "$2="
1873  if eval test -n "\"\${cross_prefix_$1}\""; then
1874    if eval has "\"\${cross_prefix_$1}\$3\""; then
1875      eval "$2=\"\${cross_prefix_$1}\$3\""
1876    fi
1877  fi
1878}
1879
1880have_target() {
1881  for i; do
1882    case " $target_list " in
1883      *" $i "*) return 0;;
1884      *) ;;
1885    esac
1886  done
1887  return 1
1888}
1889
1890# probe_target_compiler TARGET
1891#
1892# Look for a compiler for the given target, either native or cross.
1893# Set variables target_* if a compiler is found, and container_cross_*
1894# if a Docker-based cross-compiler image is known for the target.
1895# Set got_cross_cc to yes/no depending on whether a non-container-based
1896# compiler was found.
1897#
1898# If TARGET is a user-mode emulation target, also set build_static to
1899# "y" if static linking is possible.
1900#
1901probe_target_compiler() {
1902  # reset all output variables
1903  got_cross_cc=no
1904  container_image=
1905  container_hosts=
1906  container_cross_cc=
1907  container_cross_ar=
1908  container_cross_as=
1909  container_cross_ld=
1910  container_cross_nm=
1911  container_cross_objcopy=
1912  container_cross_ranlib=
1913  container_cross_strip=
1914
1915  # We shall skip configuring the target compiler if the user didn't
1916  # bother enabling an appropriate guest. This avoids building
1917  # extraneous firmware images and tests.
1918  if test "${target_list#*$1}" = "$1"; then
1919      return 1
1920  fi
1921
1922  target_arch=${1%%-*}
1923  case $target_arch in
1924    aarch64) container_hosts="x86_64 aarch64" ;;
1925    alpha) container_hosts=x86_64 ;;
1926    arm) container_hosts="x86_64 aarch64" ;;
1927    cris) container_hosts=x86_64 ;;
1928    hexagon) container_hosts=x86_64 ;;
1929    hppa) container_hosts=x86_64 ;;
1930    i386) container_hosts=x86_64 ;;
1931    loongarch64) container_hosts=x86_64 ;;
1932    m68k) container_hosts=x86_64 ;;
1933    microblaze) container_hosts=x86_64 ;;
1934    mips64el) container_hosts=x86_64 ;;
1935    mips64) container_hosts=x86_64 ;;
1936    mipsel) container_hosts=x86_64 ;;
1937    mips) container_hosts=x86_64 ;;
1938    nios2) container_hosts=x86_64 ;;
1939    ppc) container_hosts=x86_64 ;;
1940    ppc64|ppc64le) container_hosts=x86_64 ;;
1941    riscv64) container_hosts=x86_64 ;;
1942    s390x) container_hosts=x86_64 ;;
1943    sh4) container_hosts=x86_64 ;;
1944    sparc64) container_hosts=x86_64 ;;
1945    tricore) container_hosts=x86_64 ;;
1946    x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1947    xtensa*) container_hosts=x86_64 ;;
1948  esac
1949
1950  for host in $container_hosts; do
1951    test "$container" != no || continue
1952    test "$host" = "$cpu" || continue
1953    case $target_arch in
1954      aarch64)
1955        # We don't have any bigendian build tools so we only use this for AArch64
1956        container_image=debian-arm64-cross
1957        container_cross_prefix=aarch64-linux-gnu-
1958        container_cross_cc=${container_cross_prefix}gcc-10
1959        ;;
1960      alpha)
1961        container_image=debian-alpha-cross
1962        container_cross_prefix=alpha-linux-gnu-
1963        ;;
1964      arm)
1965        # We don't have any bigendian build tools so we only use this for ARM
1966        container_image=debian-armhf-cross
1967        container_cross_prefix=arm-linux-gnueabihf-
1968        ;;
1969      cris)
1970        container_image=fedora-cris-cross
1971        container_cross_prefix=cris-linux-gnu-
1972        ;;
1973      hexagon)
1974        container_image=debian-hexagon-cross
1975        container_cross_prefix=hexagon-unknown-linux-musl-
1976        container_cross_cc=${container_cross_prefix}clang
1977        ;;
1978      hppa)
1979        container_image=debian-hppa-cross
1980        container_cross_prefix=hppa-linux-gnu-
1981        ;;
1982      i386)
1983        container_image=fedora-i386-cross
1984        container_cross_prefix=
1985        ;;
1986      loongarch64)
1987        container_image=debian-loongarch-cross
1988        container_cross_prefix=loongarch64-unknown-linux-gnu-
1989        ;;
1990      m68k)
1991        container_image=debian-m68k-cross
1992        container_cross_prefix=m68k-linux-gnu-
1993        ;;
1994      microblaze)
1995        container_image=debian-microblaze-cross
1996        container_cross_prefix=microblaze-linux-musl-
1997        ;;
1998      mips64el)
1999        container_image=debian-mips64el-cross
2000        container_cross_prefix=mips64el-linux-gnuabi64-
2001        ;;
2002      mips64)
2003        container_image=debian-mips64-cross
2004        container_cross_prefix=mips64-linux-gnuabi64-
2005        ;;
2006      mipsel)
2007        container_image=debian-mipsel-cross
2008        container_cross_prefix=mipsel-linux-gnu-
2009        ;;
2010      mips)
2011        container_image=debian-mips-cross
2012        container_cross_prefix=mips-linux-gnu-
2013        ;;
2014      nios2)
2015        container_image=debian-nios2-cross
2016        container_cross_prefix=nios2-linux-gnu-
2017        ;;
2018      ppc)
2019        container_image=debian-powerpc-test-cross
2020        container_cross_prefix=powerpc-linux-gnu-
2021        container_cross_cc=${container_cross_prefix}gcc-10
2022        ;;
2023      ppc64|ppc64le)
2024        container_image=debian-powerpc-test-cross
2025        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
2026        container_cross_cc=${container_cross_prefix}gcc-10
2027        ;;
2028      riscv64)
2029        container_image=debian-riscv64-test-cross
2030        container_cross_prefix=riscv64-linux-gnu-
2031        ;;
2032      s390x)
2033        container_image=debian-s390x-cross
2034        container_cross_prefix=s390x-linux-gnu-
2035        ;;
2036      sh4)
2037        container_image=debian-sh4-cross
2038        container_cross_prefix=sh4-linux-gnu-
2039        ;;
2040      sparc64)
2041        container_image=debian-sparc64-cross
2042        container_cross_prefix=sparc64-linux-gnu-
2043        ;;
2044      tricore)
2045        container_image=debian-tricore-cross
2046        container_cross_prefix=tricore-
2047        container_cross_as=tricore-as
2048        container_cross_ld=tricore-ld
2049        break
2050        ;;
2051      x86_64)
2052        container_image=debian-amd64-cross
2053        container_cross_prefix=x86_64-linux-gnu-
2054        ;;
2055      xtensa*)
2056        container_hosts=x86_64
2057        container_image=debian-xtensa-cross
2058
2059        # default to the dc232b cpu
2060        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2061        ;;
2062    esac
2063    : ${container_cross_cc:=${container_cross_prefix}gcc}
2064    : ${container_cross_ar:=${container_cross_prefix}ar}
2065    : ${container_cross_as:=${container_cross_prefix}as}
2066    : ${container_cross_ld:=${container_cross_prefix}ld}
2067    : ${container_cross_nm:=${container_cross_prefix}nm}
2068    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2069    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2070    : ${container_cross_strip:=${container_cross_prefix}strip}
2071  done
2072
2073  try=cross
2074  case "$target_arch:$cpu" in
2075    aarch64_be:aarch64 | \
2076    armeb:arm | \
2077    i386:x86_64 | \
2078    mips*:mips64 | \
2079    ppc*:ppc64 | \
2080    sparc:sparc64 | \
2081    "$cpu:$cpu")
2082      try='native cross' ;;
2083  esac
2084  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2085  for thistry in $try; do
2086    case $thistry in
2087    native)
2088      target_cc=$cc
2089      target_ccas=$ccas
2090      target_ar=$ar
2091      target_as=$as
2092      target_ld=$ld
2093      target_nm=$nm
2094      target_objcopy=$objcopy
2095      target_ranlib=$ranlib
2096      target_strip=$strip
2097      ;;
2098    cross)
2099      target_cc=
2100      if eval test -n "\"\${cross_cc_$target_arch}\""; then
2101        if eval has "\"\${cross_cc_$target_arch}\""; then
2102          eval "target_cc=\"\${cross_cc_$target_arch}\""
2103        fi
2104      else
2105        compute_target_variable $target_arch target_cc gcc
2106      fi
2107      target_ccas=$target_cc
2108      compute_target_variable $target_arch target_ar ar
2109      compute_target_variable $target_arch target_as as
2110      compute_target_variable $target_arch target_ld ld
2111      compute_target_variable $target_arch target_nm nm
2112      compute_target_variable $target_arch target_objcopy objcopy
2113      compute_target_variable $target_arch target_ranlib ranlib
2114      compute_target_variable $target_arch target_strip strip
2115      ;;
2116    esac
2117
2118    if test -n "$target_cc"; then
2119      case $target_arch in
2120        i386|x86_64)
2121          if $target_cc --version | grep -qi "clang"; then
2122            continue
2123          fi
2124          ;;
2125      esac
2126    elif test -n "$target_as" && test -n "$target_ld"; then
2127      # Special handling for assembler only targets
2128      case $target in
2129        tricore-softmmu)
2130          build_static=
2131          got_cross_cc=yes
2132          break
2133          ;;
2134        *)
2135          continue
2136          ;;
2137      esac
2138    else
2139      continue
2140    fi
2141
2142    write_c_skeleton
2143    case $1 in
2144      *-softmmu)
2145        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2146          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2147          got_cross_cc=yes
2148          break
2149        fi
2150        ;;
2151      *)
2152        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2153          build_static=y
2154          got_cross_cc=yes
2155          break
2156        fi
2157        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2158          build_static=
2159          got_cross_cc=yes
2160          break
2161        fi
2162        ;;
2163    esac
2164  done
2165  if test $got_cross_cc != yes; then
2166    build_static=
2167    target_cc=
2168    target_ccas=
2169    target_ar=
2170    target_as=
2171    target_ld=
2172    target_nm=
2173    target_objcopy=
2174    target_ranlib=
2175    target_strip=
2176  fi
2177  test -n "$target_cc"
2178}
2179
2180write_target_makefile() {
2181  echo "EXTRA_CFLAGS=$target_cflags"
2182  if test -z "$target_cc" && test -z "$target_as"; then
2183    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
2184    echo "$1: docker-image-$container_image" >> Makefile.prereqs
2185    if test -n "$container_cross_cc"; then
2186      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2187      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2188    fi
2189    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2190    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2191    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2192    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2193    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2194    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2195    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2196  else
2197    if test -n "$target_cc"; then
2198      echo "CC=$target_cc"
2199      echo "CCAS=$target_ccas"
2200    fi
2201    if test -n "$target_ar"; then
2202      echo "AR=$target_ar"
2203    fi
2204    if test -n "$target_as"; then
2205      echo "AS=$target_as"
2206    fi
2207    if test -n "$target_ld"; then
2208      echo "LD=$target_ld"
2209    fi
2210    if test -n "$target_nm"; then
2211      echo "NM=$target_nm"
2212    fi
2213    if test -n "$target_objcopy"; then
2214      echo "OBJCOPY=$target_objcopy"
2215    fi
2216    if test -n "$target_ranlib"; then
2217      echo "RANLIB=$target_ranlib"
2218    fi
2219    if test -n "$target_strip"; then
2220      echo "STRIP=$target_strip"
2221    fi
2222  fi
2223}
2224
2225##########################################
2226# check for vfio_user_server
2227
2228case "$vfio_user_server" in
2229  enabled )
2230    if test "$git_submodules_action" != "ignore"; then
2231      git_submodules="${git_submodules} subprojects/libvfio-user"
2232    fi
2233    ;;
2234esac
2235
2236##########################################
2237# End of CC checks
2238# After here, no more $cc or $ld runs
2239
2240write_c_skeleton
2241
2242if test "$fortify_source" = "yes" ; then
2243  QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2244fi
2245
2246if test "$have_asan" = "yes"; then
2247  QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2248  QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2249  if test "$have_asan_iface_h" = "no" ; then
2250      echo "ASAN build enabled, but ASAN header missing." \
2251           "Without code annotation, the report may be inferior."
2252  elif test "$have_asan_iface_fiber" = "no" ; then
2253      echo "ASAN build enabled, but ASAN header is too old." \
2254           "Without code annotation, the report may be inferior."
2255  fi
2256fi
2257if test "$have_tsan" = "yes" ; then
2258  if test "$have_tsan_iface_fiber" = "yes" ; then
2259    QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2260    QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2261  else
2262    error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2263  fi
2264elif test "$tsan" = "yes" ; then
2265  error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2266fi
2267if test "$have_ubsan" = "yes"; then
2268  QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2269  QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2270fi
2271
2272#######################################
2273# cross-compiled firmware targets
2274
2275# Set up build tree symlinks that point back into the source tree
2276# (these can be both files and directories).
2277# Caution: avoid adding files or directories here using wildcards. This
2278# will result in problems later if a new file matching the wildcard is
2279# added to the source tree -- nothing will cause configure to be rerun
2280# so the build tree will be missing the link back to the new file, and
2281# tests might fail. Prefer to keep the relevant files in their own
2282# directory and symlink the directory instead.
2283LINKS="Makefile"
2284LINKS="$LINKS docs/config"
2285LINKS="$LINKS pc-bios/optionrom/Makefile"
2286LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2287LINKS="$LINKS pc-bios/vof/Makefile"
2288LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2289LINKS="$LINKS tests/avocado tests/data"
2290LINKS="$LINKS tests/qemu-iotests/check"
2291LINKS="$LINKS python"
2292LINKS="$LINKS contrib/plugins/Makefile "
2293for f in $LINKS ; do
2294    if [ -e "$source_path/$f" ]; then
2295        mkdir -p "$(dirname ./"$f")"
2296        symlink "$source_path/$f" "$f"
2297    fi
2298done
2299
2300echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
2301
2302# Mac OS X ships with a broken assembler
2303roms=
2304if have_target i386-softmmu x86_64-softmmu && \
2305        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2306        test "$targetos" != "haiku" && \
2307        probe_target_compiler i386-softmmu; then
2308    roms="pc-bios/optionrom"
2309    config_mak=pc-bios/optionrom/config.mak
2310    echo "# Automatically generated by configure - do not modify" > $config_mak
2311    echo "TOPSRC_DIR=$source_path" >> $config_mak
2312    write_target_makefile >> $config_mak
2313fi
2314
2315if have_target ppc-softmmu ppc64-softmmu && \
2316        probe_target_compiler ppc-softmmu; then
2317    roms="$roms pc-bios/vof"
2318    config_mak=pc-bios/vof/config.mak
2319    echo "# Automatically generated by configure - do not modify" > $config_mak
2320    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2321    write_target_makefile >> $config_mak
2322fi
2323
2324# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2325# (which is the lowest architecture level that Clang supports)
2326if have_target s390x-softmmu && probe_target_compiler s390x-softmmu; then
2327  write_c_skeleton
2328  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2329  has_z900=$?
2330  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2331    if [ $has_z900 != 0 ]; then
2332      echo "WARNING: Your compiler does not support the z900!"
2333      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2334    fi
2335    roms="$roms pc-bios/s390-ccw"
2336    config_mak=pc-bios/s390-ccw/config-host.mak
2337    echo "# Automatically generated by configure - do not modify" > $config_mak
2338    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2339    write_target_makefile >> $config_mak
2340    # SLOF is required for building the s390-ccw firmware on s390x,
2341    # since it is using the libnet code from SLOF for network booting.
2342    git_submodules="${git_submodules} roms/SLOF"
2343  fi
2344fi
2345
2346#######################################
2347# generate config-host.mak
2348
2349if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2350    exit 1
2351fi
2352
2353config_host_mak="config-host.mak"
2354
2355echo "# Automatically generated by configure - do not modify" > $config_host_mak
2356echo >> $config_host_mak
2357
2358echo all: >> $config_host_mak
2359echo "GIT=$git" >> $config_host_mak
2360echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2361echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2362
2363if test "$debug_tcg" = "yes" ; then
2364  echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2365fi
2366if test "$mingw32" = "yes" ; then
2367  echo "CONFIG_WIN32=y" >> $config_host_mak
2368  echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
2369  echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
2370  echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
2371else
2372  echo "CONFIG_POSIX=y" >> $config_host_mak
2373fi
2374
2375if test "$linux" = "yes" ; then
2376  echo "CONFIG_LINUX=y" >> $config_host_mak
2377fi
2378
2379if test "$darwin" = "yes" ; then
2380  echo "CONFIG_DARWIN=y" >> $config_host_mak
2381fi
2382
2383if test "$solaris" = "yes" ; then
2384  echo "CONFIG_SOLARIS=y" >> $config_host_mak
2385fi
2386if test "$static" = "yes" ; then
2387  echo "CONFIG_STATIC=y" >> $config_host_mak
2388fi
2389echo "SRC_PATH=$source_path" >> $config_host_mak
2390echo "TARGET_DIRS=$target_list" >> $config_host_mak
2391if test "$modules" = "yes"; then
2392  echo "CONFIG_MODULES=y" >> $config_host_mak
2393fi
2394
2395# XXX: suppress that
2396if [ "$bsd" = "yes" ] ; then
2397  echo "CONFIG_BSD=y" >> $config_host_mak
2398fi
2399
2400echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2401
2402if test "$have_asan_iface_fiber" = "yes" ; then
2403    echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2404fi
2405
2406if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2407    echo "CONFIG_TSAN=y" >> $config_host_mak
2408fi
2409
2410if test "$plugins" = "yes" ; then
2411    echo "CONFIG_PLUGIN=y" >> $config_host_mak
2412fi
2413
2414if test -n "$gdb_bin"; then
2415    gdb_version=$($gdb_bin --version | head -n 1)
2416    if version_ge ${gdb_version##* } 9.1; then
2417        echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2418        gdb_arches=$("$source_path/scripts/probe-gdb-support.py" $gdb_bin)
2419    else
2420        gdb_bin=""
2421    fi
2422fi
2423
2424if test "$container" != no; then
2425    echo "ENGINE=$container" >> $config_host_mak
2426    echo "RUNC=$runc" >> $config_host_mak
2427fi
2428echo "ROMS=$roms" >> $config_host_mak
2429echo "MAKE=$make" >> $config_host_mak
2430echo "PYTHON=$python" >> $config_host_mak
2431echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2432echo "MESON=$meson" >> $config_host_mak
2433echo "NINJA=$ninja" >> $config_host_mak
2434echo "CC=$cc" >> $config_host_mak
2435echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2436echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2437echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2438echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2439echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2440echo "GLIB_VERSION=$($pkg_config --modversion glib-2.0)" >> $config_host_mak
2441if test "$glib_has_gslice" = "yes" ; then
2442    echo "HAVE_GLIB_WITH_SLICE_ALLOCATOR=y" >> $config_host_mak
2443fi
2444echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2445echo "EXESUF=$EXESUF" >> $config_host_mak
2446
2447# use included Linux headers
2448if test "$linux" = "yes" ; then
2449  mkdir -p linux-headers
2450  case "$cpu" in
2451  i386|x86_64)
2452    linux_arch=x86
2453    ;;
2454  ppc|ppc64)
2455    linux_arch=powerpc
2456    ;;
2457  s390x)
2458    linux_arch=s390
2459    ;;
2460  aarch64)
2461    linux_arch=arm64
2462    ;;
2463  loongarch*)
2464    linux_arch=loongarch
2465    ;;
2466  mips64)
2467    linux_arch=mips
2468    ;;
2469  *)
2470    # For most CPUs the kernel architecture name and QEMU CPU name match.
2471    linux_arch="$cpu"
2472    ;;
2473  esac
2474    # For non-KVM architectures we will not have asm headers
2475    if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2476      symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2477    fi
2478fi
2479
2480for target in $target_list; do
2481    target_dir="$target"
2482    target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2483    mkdir -p "$target_dir"
2484    case $target in
2485        *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2486        *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2487    esac
2488done
2489
2490if test "$default_targets" = "yes"; then
2491  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2492fi
2493
2494if test "$ccache_cpp2" = "yes"; then
2495  echo "export CCACHE_CPP2=y" >> $config_host_mak
2496fi
2497
2498if test "$safe_stack" = "yes"; then
2499  echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2500fi
2501
2502# tests/tcg configuration
2503(config_host_mak=tests/tcg/config-host.mak
2504mkdir -p tests/tcg
2505echo "# Automatically generated by configure - do not modify" > $config_host_mak
2506echo "SRC_PATH=$source_path" >> $config_host_mak
2507echo "HOST_CC=$host_cc" >> $config_host_mak
2508
2509# versioned checked in the main config_host.mak above
2510if test -n "$gdb_bin"; then
2511    echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2512fi
2513if test "$plugins" = "yes" ; then
2514    echo "CONFIG_PLUGIN=y" >> $config_host_mak
2515fi
2516
2517tcg_tests_targets=
2518for target in $target_list; do
2519  arch=${target%%-*}
2520
2521  case $target in
2522    xtensa*-linux-user)
2523      # the toolchain is not complete with headers, only build softmmu tests
2524      continue
2525      ;;
2526    *-softmmu)
2527      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2528      qemu="qemu-system-$arch"
2529      ;;
2530    *-linux-user|*-bsd-user)
2531      qemu="qemu-$arch"
2532      ;;
2533  esac
2534
2535  if probe_target_compiler $target || test -n "$container_image"; then
2536      test -n "$container_image" && build_static=y
2537      mkdir -p "tests/tcg/$target"
2538      config_target_mak=tests/tcg/$target/config-target.mak
2539      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
2540      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
2541      echo "TARGET_NAME=$arch" >> "$config_target_mak"
2542      echo "TARGET=$target" >> "$config_target_mak"
2543      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
2544      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2545      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2546
2547      # will GDB work with these binaries?
2548      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
2549          echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
2550      fi
2551
2552      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
2553      tcg_tests_targets="$tcg_tests_targets $target"
2554  fi
2555done
2556
2557if test "$tcg" = "enabled"; then
2558    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
2559fi
2560)
2561
2562if test "$skip_meson" = no; then
2563  cross="config-meson.cross.new"
2564  meson_quote() {
2565    test $# = 0 && return
2566    echo "'$(echo $* | sed "s/ /','/g")'"
2567  }
2568
2569  echo "# Automatically generated by configure - do not modify" > $cross
2570  echo "[properties]" >> $cross
2571
2572  # unroll any custom device configs
2573  for a in $device_archs; do
2574      eval "c=\$devices_${a}"
2575      echo "${a}-softmmu = '$c'" >> $cross
2576  done
2577
2578  echo "[built-in options]" >> $cross
2579  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2580  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2581  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2582  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2583  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2584  echo "[binaries]" >> $cross
2585  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2586  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2587  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2588  echo "ar = [$(meson_quote $ar)]" >> $cross
2589  echo "nm = [$(meson_quote $nm)]" >> $cross
2590  echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2591  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2592  if has $sdl2_config; then
2593    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2594  fi
2595  echo "strip = [$(meson_quote $strip)]" >> $cross
2596  echo "widl = [$(meson_quote $widl)]" >> $cross
2597  echo "windres = [$(meson_quote $windres)]" >> $cross
2598  echo "windmc = [$(meson_quote $windmc)]" >> $cross
2599  if test "$cross_compile" = "yes"; then
2600    cross_arg="--cross-file config-meson.cross"
2601    echo "[host_machine]" >> $cross
2602    echo "system = '$targetos'" >> $cross
2603    case "$cpu" in
2604        i386)
2605            echo "cpu_family = 'x86'" >> $cross
2606            ;;
2607        *)
2608            echo "cpu_family = '$cpu'" >> $cross
2609            ;;
2610    esac
2611    echo "cpu = '$cpu'" >> $cross
2612    if test "$bigendian" = "yes" ; then
2613        echo "endian = 'big'" >> $cross
2614    else
2615        echo "endian = 'little'" >> $cross
2616    fi
2617  else
2618    cross_arg="--native-file config-meson.cross"
2619  fi
2620  mv $cross config-meson.cross
2621
2622  rm -rf meson-private meson-info meson-logs
2623
2624  # Prevent meson from automatically downloading wrapped subprojects when missing.
2625  # You can use 'meson subprojects download' before running configure.
2626  meson_option_add "--wrap-mode=nodownload"
2627
2628  # Built-in options
2629  test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2630  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2631  test "$pie" = no && meson_option_add -Db_pie=false
2632  test "$werror" = yes && meson_option_add -Dwerror=true
2633
2634  # QEMU options
2635  test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2636  test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2637  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2638  test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2639  test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2640  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2641  test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2642  run_meson() {
2643    NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2644  }
2645  eval run_meson $meson_options
2646  if test "$?" -ne 0 ; then
2647      error_exit "meson setup failed"
2648  fi
2649fi
2650
2651# Save the configure command line for later reuse.
2652cat <<EOD >config.status
2653#!/bin/sh
2654# Generated by configure.
2655# Run this file to recreate the current configuration.
2656# Compiler output produced by configure, useful for debugging
2657# configure, is in config.log if it exists.
2658EOD
2659
2660preserve_env() {
2661    envname=$1
2662
2663    eval envval=\$$envname
2664
2665    if test -n "$envval"
2666    then
2667	echo "$envname='$envval'" >> config.status
2668	echo "export $envname" >> config.status
2669    else
2670	echo "unset $envname" >> config.status
2671    fi
2672}
2673
2674# Preserve various env variables that influence what
2675# features/build target configure will detect
2676preserve_env AR
2677preserve_env AS
2678preserve_env CC
2679preserve_env CFLAGS
2680preserve_env CXX
2681preserve_env CXXFLAGS
2682preserve_env LD
2683preserve_env LDFLAGS
2684preserve_env LD_LIBRARY_PATH
2685preserve_env MAKE
2686preserve_env NM
2687preserve_env OBJCFLAGS
2688preserve_env OBJCOPY
2689preserve_env PATH
2690preserve_env PKG_CONFIG
2691preserve_env PKG_CONFIG_LIBDIR
2692preserve_env PKG_CONFIG_PATH
2693preserve_env PYTHON
2694preserve_env QEMU_GA_MANUFACTURER
2695preserve_env QEMU_GA_DISTRO
2696preserve_env QEMU_GA_VERSION
2697preserve_env SDL2_CONFIG
2698preserve_env SMBD
2699preserve_env STRIP
2700preserve_env WIDL
2701preserve_env WINDRES
2702preserve_env WINDMC
2703
2704printf "exec" >>config.status
2705for i in "$0" "$@"; do
2706  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2707done
2708echo ' "$@"' >>config.status
2709chmod +x config.status
2710
2711rm -r "$TMPDIR1"
2712