configure, meson: move linker flag detection to meson
[qemu/ar7.git] / configure
blobe032bd0a089aab650486c0934bc5ea3771248ccb
1 #!/bin/sh
3 # qemu configure script (c) 2003 Fabrice Bellard
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
11 # Don't allow CCACHE, if present, to use cached results of compile tests!
12 export CCACHE_RECACHE=yes
14 # make source path absolute
15 source_path=$(cd "$(dirname -- "$0")"; pwd)
17 if test "$PWD" = "$source_path"
18 then
19 echo "Using './build' as the directory for build output"
21 MARKER=build/auto-created-by-configure
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
34 mkdir build
35 touch $MARKER
37 cat > GNUmakefile <<'EOF'
38 # This file is auto-generated by configure to support in-source tree
39 # 'make' command invocation
41 ifeq ($(MAKECMDGOALS),)
42 recurse: all
43 endif
45 .NOTPARALLEL: %
46 %: force
47 @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
48 @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
49 @if test "$(MAKECMDGOALS)" = "distclean" && \
50 test -e build/auto-created-by-configure ; \
51 then \
52 rm -rf build GNUmakefile ; \
54 force: ;
55 .PHONY: force
56 GNUmakefile: ;
58 EOF
59 cd build
60 exec "$source_path/configure" "$@"
63 # Temporary directory used for files created while
64 # configure runs. Since it is in the build directory
65 # we can safely blow away any previous version of it
66 # (and we need not jump through hoops to try to delete
67 # it when configure exits.)
68 TMPDIR1="config-temp"
69 rm -rf "${TMPDIR1}"
70 if ! mkdir -p "${TMPDIR1}"; then
71 echo "ERROR: failed to create temporary directory"
72 exit 1
75 TMPB="qemu-conf"
76 TMPC="${TMPDIR1}/${TMPB}.c"
77 TMPO="${TMPDIR1}/${TMPB}.o"
78 TMPM="${TMPDIR1}/${TMPB}.m"
79 TMPE="${TMPDIR1}/${TMPB}.exe"
81 rm -f config.log
83 # Print a helpful header at the top of config.log
84 echo "# QEMU configure log $(date)" >> config.log
85 printf "# Configured with:" >> config.log
86 printf " '%s'" "$0" "$@" >> config.log
87 echo >> config.log
88 echo "#" >> config.log
90 quote_sh() {
91 printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
94 print_error() {
95 (echo
96 echo "ERROR: $1"
97 while test -n "$2"; do
98 echo " $2"
99 shift
100 done
101 echo) >&2
104 error_exit() {
105 print_error "$@"
106 exit 1
109 do_compiler() {
110 # Run the compiler, capturing its output to the log. First argument
111 # is compiler binary to execute.
112 compiler="$1"
113 shift
114 if test -n "$BASH_VERSION"; then eval '
115 echo >>config.log "
116 funcs: ${FUNCNAME[*]}
117 lines: ${BASH_LINENO[*]}"
118 '; fi
119 echo $compiler "$@" >> config.log
120 $compiler "$@" >> config.log 2>&1 || return $?
123 do_compiler_werror() {
124 # Run the compiler, capturing its output to the log. First argument
125 # is compiler binary to execute.
126 compiler="$1"
127 shift
128 if test -n "$BASH_VERSION"; then eval '
129 echo >>config.log "
130 funcs: ${FUNCNAME[*]}
131 lines: ${BASH_LINENO[*]}"
132 '; fi
133 echo $compiler "$@" >> config.log
134 $compiler "$@" >> config.log 2>&1 || return $?
135 # Test passed. If this is an --enable-werror build, rerun
136 # the test with -Werror and bail out if it fails. This
137 # makes warning-generating-errors in configure test code
138 # obvious to developers.
139 if test "$werror" != "yes"; then
140 return 0
142 # Don't bother rerunning the compile if we were already using -Werror
143 case "$*" in
144 *-Werror*)
145 return 0
147 esac
148 echo $compiler -Werror "$@" >> config.log
149 $compiler -Werror "$@" >> config.log 2>&1 && return $?
150 error_exit "configure test passed without -Werror but failed with -Werror." \
151 "This is probably a bug in the configure script. The failing command" \
152 "will be at the bottom of config.log." \
153 "You can run configure with --disable-werror to bypass this check."
156 do_cc() {
157 do_compiler_werror "$cc" $CPU_CFLAGS "$@"
160 do_objc() {
161 do_compiler_werror "$objcc" $CPU_CFLAGS "$@"
164 # Append $2 to the variable named $1, with space separation
165 add_to() {
166 eval $1=\${$1:+\"\$$1 \"}\$2
169 compile_object() {
170 local_cflags="$1"
171 do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
174 compile_prog() {
175 local_cflags="$1"
176 local_ldflags="$2"
177 do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
178 $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
181 # symbolically link $1 to $2. Portable version of "ln -sf".
182 symlink() {
183 rm -rf "$2"
184 mkdir -p "$(dirname "$2")"
185 ln -s "$1" "$2"
188 # check whether a command is available to this shell (may be either an
189 # executable or a builtin)
190 has() {
191 type "$1" >/dev/null 2>&1
194 version_ge () {
195 local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
196 local_ver2=$(echo "$2" | tr . ' ')
197 while true; do
198 set x $local_ver1
199 local_first=${2-0}
200 # 'shift 2' if $2 is set, or 'shift' if $2 is not set
201 shift ${2:+2}
202 local_ver1=$*
203 set x $local_ver2
204 # the second argument finished, the first must be greater or equal
205 test $# = 1 && return 0
206 test $local_first -lt $2 && return 1
207 test $local_first -gt $2 && return 0
208 shift ${2:+2}
209 local_ver2=$*
210 done
213 glob() {
214 eval test -z '"${1#'"$2"'}"'
217 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
218 then
219 error_exit "main directory cannot contain spaces nor colons"
222 # default parameters
223 cpu=""
224 static="no"
225 cross_compile="no"
226 cross_prefix=""
227 host_cc="cc"
228 stack_protector=""
229 safe_stack=""
230 use_containers="yes"
231 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
233 if test -e "$source_path/.git"
234 then
235 git_submodules_action="update"
236 else
237 git_submodules_action="ignore"
240 git_submodules="ui/keycodemapdb"
241 git="git"
243 # Don't accept a target_list environment variable.
244 unset target_list
245 unset target_list_exclude
247 # Default value for a variable defining feature "foo".
248 # * foo="no" feature will only be used if --enable-foo arg is given
249 # * foo="" feature will be searched for, and if found, will be used
250 # unless --disable-foo is given
251 # * foo="yes" this value will only be set by --enable-foo flag.
252 # feature will searched for,
253 # if not found, configure exits with error
255 # Always add --enable-foo and --disable-foo command line args.
256 # Distributions want to ensure that several features are compiled in, and it
257 # is impossible without a --enable-foo that exits if a feature is not found.
259 default_feature=""
260 # parse CC options second
261 for opt do
262 optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
263 case "$opt" in
264 --without-default-features)
265 default_feature="no"
267 esac
268 done
270 EXTRA_CFLAGS=""
271 EXTRA_CXXFLAGS=""
272 EXTRA_OBJCFLAGS=""
273 EXTRA_LDFLAGS=""
275 debug_tcg="no"
276 sanitizers="no"
277 tsan="no"
278 fortify_source="yes"
279 EXESUF=""
280 modules="no"
281 prefix="/usr/local"
282 qemu_suffix="qemu"
283 softmmu="yes"
284 linux_user=""
285 bsd_user=""
286 pie=""
287 coroutine=""
288 plugins="$default_feature"
289 meson=""
290 ninja=""
291 bindir="bin"
292 skip_meson=no
293 vfio_user_server="disabled"
295 # The following Meson options are handled manually (still they
296 # are included in the automatically generated help message)
298 # 1. Track which submodules are needed
299 if test "$default_feature" = no ; then
300 slirp="disabled"
301 else
302 slirp="auto"
304 fdt="auto"
306 # 2. Automatically enable/disable other options
307 tcg="auto"
308 cfi="false"
310 # parse CC options second
311 for opt do
312 optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
313 case "$opt" in
314 --cross-prefix=*) cross_prefix="$optarg"
315 cross_compile="yes"
317 --cc=*) CC="$optarg"
319 --cxx=*) CXX="$optarg"
321 --cpu=*) cpu="$optarg"
323 --extra-cflags=*)
324 EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
325 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
326 EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
328 --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
330 --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
332 --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
334 --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
336 --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
337 eval "cross_cc_cflags_${cc_arch}=\$optarg"
339 --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
340 eval "cross_cc_${cc_arch}=\$optarg"
342 --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
344 --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
345 eval "cross_prefix_${cc_arch}=\$optarg"
347 esac
348 done
349 # OS specific
350 # Using uname is really, really broken. Once we have the right set of checks
351 # we can eliminate its usage altogether.
353 # Preferred compiler:
354 # ${CC} (if set)
355 # ${cross_prefix}gcc (if cross-prefix specified)
356 # system compiler
357 if test -z "${CC}${cross_prefix}"; then
358 cc="$host_cc"
359 else
360 cc="${CC-${cross_prefix}gcc}"
363 if test -z "${CXX}${cross_prefix}"; then
364 cxx="c++"
365 else
366 cxx="${CXX-${cross_prefix}g++}"
369 ar="${AR-${cross_prefix}ar}"
370 as="${AS-${cross_prefix}as}"
371 ccas="${CCAS-$cc}"
372 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
373 ld="${LD-${cross_prefix}ld}"
374 ranlib="${RANLIB-${cross_prefix}ranlib}"
375 nm="${NM-${cross_prefix}nm}"
376 smbd="$SMBD"
377 strip="${STRIP-${cross_prefix}strip}"
378 widl="${WIDL-${cross_prefix}widl}"
379 windres="${WINDRES-${cross_prefix}windres}"
380 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
381 query_pkg_config() {
382 "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
384 pkg_config=query_pkg_config
385 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
387 # default flags for all hosts
388 # We use -fwrapv to tell the compiler that we require a C dialect where
389 # left shift of signed integers is well defined and has the expected
390 # 2s-complement style results. (Both clang and gcc agree that it
391 # provides these semantics.)
392 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
393 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
394 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
395 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
397 QEMU_LDFLAGS=
399 # Flags that are needed during configure but later taken care of by Meson
400 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
401 CONFIGURE_LDFLAGS=
404 check_define() {
405 cat > $TMPC <<EOF
406 #if !defined($1)
407 #error $1 not defined
408 #endif
409 int main(void) { return 0; }
411 compile_object
414 check_include() {
415 cat > $TMPC <<EOF
416 #include <$1>
417 int main(void) { return 0; }
419 compile_object
422 write_c_skeleton() {
423 cat > $TMPC <<EOF
424 int main(void) { return 0; }
428 if check_define __linux__ ; then
429 targetos=linux
430 elif check_define _WIN32 ; then
431 targetos=windows
432 elif check_define __OpenBSD__ ; then
433 targetos=openbsd
434 elif check_define __sun__ ; then
435 targetos=sunos
436 elif check_define __HAIKU__ ; then
437 targetos=haiku
438 elif check_define __FreeBSD__ ; then
439 targetos=freebsd
440 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
441 targetos=gnu/kfreebsd
442 elif check_define __DragonFly__ ; then
443 targetos=dragonfly
444 elif check_define __NetBSD__; then
445 targetos=netbsd
446 elif check_define __APPLE__; then
447 targetos=darwin
448 else
449 # This is a fatal error, but don't report it yet, because we
450 # might be going to just print the --help text, or it might
451 # be the result of a missing compiler.
452 targetos=bogus
455 # OS specific
457 mingw32="no"
458 bsd="no"
459 linux="no"
460 solaris="no"
461 case $targetos in
462 windows)
463 mingw32="yes"
464 plugins="no"
465 pie="no"
467 gnu/kfreebsd)
468 bsd="yes"
470 freebsd)
471 bsd="yes"
472 make="${MAKE-gmake}"
473 # needed for kinfo_getvmmap(3) in libutil.h
475 dragonfly)
476 bsd="yes"
477 make="${MAKE-gmake}"
479 netbsd)
480 bsd="yes"
481 make="${MAKE-gmake}"
483 openbsd)
484 bsd="yes"
485 make="${MAKE-gmake}"
487 darwin)
488 bsd="yes"
489 darwin="yes"
490 # Disable attempts to use ObjectiveC features in os/object.h since they
491 # won't work when we're compiling with gcc as a C compiler.
492 QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
494 sunos)
495 solaris="yes"
496 make="${MAKE-gmake}"
497 # needed for CMSG_ macros in sys/socket.h
498 QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
499 # needed for TIOCWIN* defines in termios.h
500 QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
501 # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
502 # Note that this check is broken for cross-compilation: if you're
503 # cross-compiling to one of these OSes then you'll need to specify
504 # the correct CPU with the --cpu option.
505 if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
506 cpu="x86_64"
509 haiku)
510 pie="no"
511 QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
513 linux)
514 linux="yes"
516 esac
518 if test ! -z "$cpu" ; then
519 # command line argument
521 elif check_define __i386__ ; then
522 cpu="i386"
523 elif check_define __x86_64__ ; then
524 if check_define __ILP32__ ; then
525 cpu="x32"
526 else
527 cpu="x86_64"
529 elif check_define __sparc__ ; then
530 if check_define __arch64__ ; then
531 cpu="sparc64"
532 else
533 cpu="sparc"
535 elif check_define _ARCH_PPC ; then
536 if check_define _ARCH_PPC64 ; then
537 if check_define _LITTLE_ENDIAN ; then
538 cpu="ppc64le"
539 else
540 cpu="ppc64"
542 else
543 cpu="ppc"
545 elif check_define __mips__ ; then
546 cpu="mips"
547 elif check_define __s390__ ; then
548 if check_define __s390x__ ; then
549 cpu="s390x"
550 else
551 cpu="s390"
553 elif check_define __riscv ; then
554 cpu="riscv"
555 elif check_define __arm__ ; then
556 cpu="arm"
557 elif check_define __aarch64__ ; then
558 cpu="aarch64"
559 elif check_define __loongarch64 ; then
560 cpu="loongarch64"
561 else
562 cpu=$(uname -m)
565 # Normalise host CPU name, set multilib cflags
566 # Note that this case should only have supported host CPUs, not guests.
567 case "$cpu" in
568 armv*b|armv*l|arm)
569 cpu="arm" ;;
571 i386|i486|i586|i686|i86pc|BePC)
572 cpu="i386"
573 CPU_CFLAGS="-m32" ;;
574 x32)
575 cpu="x86_64"
576 CPU_CFLAGS="-mx32" ;;
577 x86_64|amd64)
578 cpu="x86_64"
579 # ??? Only extremely old AMD cpus do not have cmpxchg16b.
580 # If we truly care, we should simply detect this case at
581 # runtime and generate the fallback to serial emulation.
582 CPU_CFLAGS="-m64 -mcx16" ;;
584 mips*)
585 cpu="mips" ;;
587 ppc)
588 CPU_CFLAGS="-m32" ;;
589 ppc64)
590 CPU_CFLAGS="-m64 -mbig-endian" ;;
591 ppc64le)
592 cpu="ppc64"
593 CPU_CFLAGS="-m64 -mlittle-endian" ;;
595 s390)
596 CPU_CFLAGS="-m31" ;;
597 s390x)
598 CPU_CFLAGS="-m64" ;;
600 sparc|sun4[cdmuv])
601 cpu="sparc"
602 CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
603 sparc64)
604 CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
605 esac
607 : ${make=${MAKE-make}}
609 # We prefer python 3.x. A bare 'python' is traditionally
610 # python 2.x, but some distros have it as python 3.x, so
611 # we check that too
612 python=
613 explicit_python=no
614 for binary in "${PYTHON-python3}" python
616 if has "$binary"
617 then
618 python=$(command -v "$binary")
619 break
621 done
624 # Check for ancillary tools used in testing
625 genisoimage=
626 for binary in genisoimage mkisofs
628 if has $binary
629 then
630 genisoimage=$(command -v "$binary")
631 break
633 done
635 # Default objcc to clang if available, otherwise use CC
636 if has clang; then
637 objcc=clang
638 else
639 objcc="$cc"
642 if test "$mingw32" = "yes" ; then
643 EXESUF=".exe"
644 # MinGW needs -mthreads for TLS and macro _MT.
645 CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
646 write_c_skeleton;
647 prefix="/qemu"
648 bindir=""
649 qemu_suffix=""
652 werror=""
654 meson_option_build_array() {
655 printf '['
656 (if test "$targetos" = windows; then
657 IFS=\;
658 else
659 IFS=:
661 for e in $1; do
662 printf '"""'
663 # backslash escape any '\' and '"' characters
664 printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
665 printf '""",'
666 done)
667 printf ']\n'
670 . "$source_path/scripts/meson-buildoptions.sh"
672 meson_options=
673 meson_option_add() {
674 meson_options="$meson_options $(quote_sh "$1")"
676 meson_option_parse() {
677 meson_options="$meson_options $(_meson_option_parse "$@")"
678 if test $? -eq 1; then
679 echo "ERROR: unknown option $1"
680 echo "Try '$0 --help' for more information"
681 exit 1
685 for opt do
686 optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
687 case "$opt" in
688 --help|-h) show_help=yes
690 --version|-V) exec cat "$source_path/VERSION"
692 --prefix=*) prefix="$optarg"
694 --cross-prefix=*)
696 --cc=*)
698 --host-cc=*) host_cc="$optarg"
700 --cxx=*)
702 --objcc=*) objcc="$optarg"
704 --make=*) make="$optarg"
706 --install=*)
708 --python=*) python="$optarg" ; explicit_python=yes
710 --skip-meson) skip_meson=yes
712 --meson=*) meson="$optarg"
714 --ninja=*) ninja="$optarg"
716 --smbd=*) smbd="$optarg"
718 --extra-cflags=*)
720 --extra-cxxflags=*)
722 --extra-objcflags=*)
724 --extra-ldflags=*)
726 --cross-cc-*)
728 --cross-prefix-*)
730 --enable-debug-info) meson_option_add -Ddebug=true
732 --disable-debug-info) meson_option_add -Ddebug=false
734 --enable-modules)
735 modules="yes"
737 --disable-modules)
738 modules="no"
740 --cpu=*)
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"
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"
752 --with-default-devices) meson_option_add -Ddefault_devices=true
754 --without-default-devices) meson_option_add -Ddefault_devices=false
756 --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
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"
768 --without-default-features) # processed above
770 --static)
771 static="yes"
772 QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
774 --bindir=*) bindir="$optarg"
776 --with-suffix=*) qemu_suffix="$optarg"
778 --host=*|--build=*|\
779 --disable-dependency-tracking|\
780 --sbindir=*|--sharedstatedir=*|\
781 --oldincludedir=*|--datarootdir=*|--infodir=*|\
782 --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
783 # These switches are silently ignored, for compatibility with
784 # autoconf-generated configure scripts. This allows QEMU's
785 # configure to be used by RPM and similar macros that set
786 # lots of directory switches by default.
788 --enable-debug-tcg) debug_tcg="yes"
790 --disable-debug-tcg) debug_tcg="no"
792 --enable-debug)
793 # Enable debugging options that aren't excessively noisy
794 debug_tcg="yes"
795 meson_option_parse --enable-debug-mutex ""
796 meson_option_add -Doptimization=0
797 fortify_source="no"
799 --enable-sanitizers) sanitizers="yes"
801 --disable-sanitizers) sanitizers="no"
803 --enable-tsan) tsan="yes"
805 --disable-tsan) tsan="no"
807 --disable-slirp) slirp="disabled"
809 --enable-slirp) slirp="enabled"
811 --enable-slirp=git) slirp="internal"
813 --enable-slirp=*) slirp="$optarg"
815 --disable-tcg) tcg="disabled"
816 plugins="no"
818 --enable-tcg) tcg="enabled"
820 --disable-system) softmmu="no"
822 --enable-system) softmmu="yes"
824 --disable-user)
825 linux_user="no" ;
826 bsd_user="no" ;
828 --enable-user) ;;
829 --disable-linux-user) linux_user="no"
831 --enable-linux-user) linux_user="yes"
833 --disable-bsd-user) bsd_user="no"
835 --enable-bsd-user) bsd_user="yes"
837 --enable-pie) pie="yes"
839 --disable-pie) pie="no"
841 --enable-werror) werror="yes"
843 --disable-werror) werror="no"
845 --enable-stack-protector) stack_protector="yes"
847 --disable-stack-protector) stack_protector="no"
849 --enable-safe-stack) safe_stack="yes"
851 --disable-safe-stack) safe_stack="no"
853 --enable-cfi)
854 cfi="true";
855 meson_option_add -Db_lto=true
857 --disable-cfi) cfi="false"
859 --disable-fdt) fdt="disabled"
861 --enable-fdt) fdt="enabled"
863 --enable-fdt=git) fdt="internal"
865 --enable-fdt=*) fdt="$optarg"
867 --with-coroutine=*) coroutine="$optarg"
869 --disable-zlib-test)
871 --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
872 echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
874 --enable-vhdx|--disable-vhdx)
875 echo "$0: $opt is obsolete, VHDX driver is always built" >&2
877 --enable-uuid|--disable-uuid)
878 echo "$0: $opt is obsolete, UUID support is always built" >&2
880 --with-git=*) git="$optarg"
882 --with-git-submodules=*)
883 git_submodules_action="$optarg"
885 --enable-plugins) if test "$mingw32" = "yes"; then
886 error_exit "TCG plugins not currently supported on Windows platforms"
887 else
888 plugins="yes"
891 --disable-plugins) plugins="no"
893 --enable-containers) use_containers="yes"
895 --disable-containers) use_containers="no"
897 --gdb=*) gdb_bin="$optarg"
899 # backwards compatibility options
900 --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
902 --disable-blobs) meson_option_parse --disable-install-blobs ""
904 --enable-vfio-user-server) vfio_user_server="enabled"
906 --disable-vfio-user-server) vfio_user_server="disabled"
908 --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
910 --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
912 # everything else has the same name in configure and meson
913 --*) meson_option_parse "$opt" "$optarg"
915 esac
916 done
918 # test for any invalid configuration combinations
919 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
920 error_exit "Can't enable plugins on non-TCG builds"
923 case $git_submodules_action in
924 update|validate)
925 if test ! -e "$source_path/.git"; then
926 echo "ERROR: cannot $git_submodules_action git submodules without .git"
927 exit 1
930 ignore)
931 if ! test -f "$source_path/ui/keycodemapdb/README"
932 then
933 echo
934 echo "ERROR: missing GIT submodules"
935 echo
936 if test -e "$source_path/.git"; then
937 echo "--with-git-submodules=ignore specified but submodules were not"
938 echo "checked out. Please initialize and update submodules."
939 else
940 echo "This is not a GIT checkout but module content appears to"
941 echo "be missing. Do not use 'git archive' or GitHub download links"
942 echo "to acquire QEMU source archives. Non-GIT builds are only"
943 echo "supported with source archives linked from:"
944 echo
945 echo " https://www.qemu.org/download/#source"
946 echo
947 echo "Developers working with GIT can use scripts/archive-source.sh"
948 echo "if they need to create valid source archives."
950 echo
951 exit 1
955 echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
956 exit 1
958 esac
960 default_target_list=""
961 mak_wilds=""
963 if [ "$linux_user" != no ]; then
964 if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
965 linux_user=yes
966 elif [ "$linux_user" = yes ]; then
967 error_exit "linux-user not supported on this architecture"
970 if [ "$bsd_user" != no ]; then
971 if [ "$bsd_user" = "" ]; then
972 test $targetos = freebsd && bsd_user=yes
974 if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
975 error_exit "bsd-user not supported on this host OS"
978 if [ "$softmmu" = "yes" ]; then
979 mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
981 if [ "$linux_user" = "yes" ]; then
982 mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
984 if [ "$bsd_user" = "yes" ]; then
985 mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
988 for config in $mak_wilds; do
989 target="$(basename "$config" .mak)"
990 if echo "$target_list_exclude" | grep -vq "$target"; then
991 default_target_list="${default_target_list} $target"
993 done
995 if test x"$show_help" = x"yes" ; then
996 cat << EOF
998 Usage: configure [options]
999 Options: [defaults in brackets after descriptions]
1001 Standard options:
1002 --help print this message
1003 --prefix=PREFIX install in PREFIX [$prefix]
1004 --target-list=LIST set target list (default: build all)
1005 $(echo Available targets: $default_target_list | \
1006 fold -s -w 53 | sed -e 's/^/ /')
1007 --target-list-exclude=LIST exclude a set of targets from the default target-list
1009 Advanced options (experts only):
1010 --cross-prefix=PREFIX use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1011 --cc=CC use C compiler CC [$cc]
1012 --host-cc=CC use C compiler CC [$host_cc] for code run at
1013 build time
1014 --cxx=CXX use C++ compiler CXX [$cxx]
1015 --objcc=OBJCC use Objective-C compiler OBJCC [$objcc]
1016 --extra-cflags=CFLAGS append extra C compiler flags CFLAGS
1017 --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1018 --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1019 --extra-ldflags=LDFLAGS append extra linker flags LDFLAGS
1020 --cross-cc-ARCH=CC use compiler when building ARCH guest test cases
1021 --cross-cc-cflags-ARCH= use compiler flags when building ARCH guest tests
1022 --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
1023 --make=MAKE use specified make [$make]
1024 --python=PYTHON use specified python [$python]
1025 --meson=MESON use specified meson [$meson]
1026 --ninja=NINJA use specified ninja [$ninja]
1027 --smbd=SMBD use specified smbd [$smbd]
1028 --with-git=GIT use specified git [$git]
1029 --with-git-submodules=update update git submodules (default if .git dir exists)
1030 --with-git-submodules=validate fail if git submodules are not up to date
1031 --with-git-submodules=ignore do not update or check git submodules (default if no .git dir)
1032 --static enable static build [$static]
1033 --bindir=PATH install binaries in PATH
1034 --with-suffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1035 --without-default-features default all --enable-* options to "disabled"
1036 --without-default-devices do not include any device that is not needed to
1037 start the emulator (only use if you are including
1038 desired devices in configs/devices/)
1039 --with-devices-ARCH=NAME override default configs/devices
1040 --enable-debug enable common debug build options
1041 --enable-sanitizers enable default sanitizers
1042 --enable-tsan enable thread sanitizer
1043 --disable-werror disable compilation abort on warning
1044 --disable-stack-protector disable compiler-provided stack protection
1045 --cpu=CPU Build for host CPU [$cpu]
1046 --with-coroutine=BACKEND coroutine backend. Supported options:
1047 ucontext, sigaltstack, windows
1048 --enable-plugins
1049 enable plugins via shared library loading
1050 --disable-containers don't use containers for cross-building
1051 --gdb=GDB-path gdb to use for gdbstub tests [$gdb_bin]
1053 meson_options_help
1054 cat << EOF
1055 system all system emulation targets
1056 user supported user emulation targets
1057 linux-user all linux usermode emulation targets
1058 bsd-user all BSD usermode emulation targets
1059 pie Position Independent Executables
1060 modules modules support (non-Windows)
1061 debug-tcg TCG debugging (default is disabled)
1062 debug-info debugging information
1063 safe-stack SafeStack Stack Smash Protection. Depends on
1064 clang/llvm >= 3.7 and requires coroutine backend ucontext.
1066 NOTE: The object files are built at the place where configure is launched
1068 exit 0
1071 # Remove old dependency files to make sure that they get properly regenerated
1072 rm -f ./*/config-devices.mak.d
1074 if test -z "$python"
1075 then
1076 error_exit "Python not found. Use --python=/path/to/python"
1078 if ! has "$make"
1079 then
1080 error_exit "GNU make ($make) not found"
1083 # Note that if the Python conditional here evaluates True we will exit
1084 # with status 1 which is a shell 'false' value.
1085 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1086 error_exit "Cannot use '$python', Python >= 3.6 is required." \
1087 "Use --python=/path/to/python to specify a supported Python."
1090 # Suppress writing compiled files
1091 python="$python -B"
1093 if test -z "$meson"; then
1094 if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.61.5; then
1095 meson=meson
1096 elif test "$git_submodules_action" != 'ignore' ; then
1097 meson=git
1098 elif test -e "${source_path}/meson/meson.py" ; then
1099 meson=internal
1100 else
1101 if test "$explicit_python" = yes; then
1102 error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1103 else
1104 error_exit "Meson not found. Use --meson=/path/to/meson"
1107 else
1108 # Meson uses its own Python interpreter to invoke other Python scripts,
1109 # but the user wants to use the one they specified with --python.
1111 # We do not want to override the distro Python interpreter (and sometimes
1112 # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1113 # just require --meson=git|internal together with --python.
1114 if test "$explicit_python" = yes; then
1115 case "$meson" in
1116 git | internal) ;;
1117 *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1118 esac
1122 if test "$meson" = git; then
1123 git_submodules="${git_submodules} meson"
1126 case "$meson" in
1127 git | internal)
1128 meson="$python ${source_path}/meson/meson.py"
1130 *) meson=$(command -v "$meson") ;;
1131 esac
1133 # Probe for ninja
1135 if test -z "$ninja"; then
1136 for c in ninja ninja-build samu; do
1137 if has $c; then
1138 ninja=$(command -v "$c")
1139 break
1141 done
1142 if test -z "$ninja"; then
1143 error_exit "Cannot find Ninja"
1147 # Check that the C compiler works. Doing this here before testing
1148 # the host CPU ensures that we had a valid CC to autodetect the
1149 # $cpu var (and we should bail right here if that's not the case).
1150 # It also allows the help message to be printed without a CC.
1151 write_c_skeleton;
1152 if compile_object ; then
1153 : C compiler works ok
1154 else
1155 error_exit "\"$cc\" either does not exist or does not work"
1157 if ! compile_prog ; then
1158 error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1161 # Consult white-list to determine whether to enable werror
1162 # by default. Only enable by default for git builds
1163 if test -z "$werror" ; then
1164 if test "$git_submodules_action" != "ignore" && \
1165 { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1166 werror="yes"
1167 else
1168 werror="no"
1172 if test "$targetos" = "bogus"; then
1173 # Now that we know that we're not printing the help and that
1174 # the compiler works (so the results of the check_defines we used
1175 # to identify the OS are reliable), if we didn't recognize the
1176 # host OS we should stop now.
1177 error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1180 # Check whether the compiler matches our minimum requirements:
1181 cat > $TMPC << EOF
1182 #if defined(__clang_major__) && defined(__clang_minor__)
1183 # ifdef __apple_build_version__
1184 # if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1185 # error You need at least XCode Clang v10.0 to compile QEMU
1186 # endif
1187 # else
1188 # if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1189 # error You need at least Clang v6.0 to compile QEMU
1190 # endif
1191 # endif
1192 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1193 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1194 # error You need at least GCC v7.4.0 to compile QEMU
1195 # endif
1196 #else
1197 # error You either need GCC or Clang to compiler QEMU
1198 #endif
1199 int main (void) { return 0; }
1201 if ! compile_prog "" "" ; then
1202 error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1205 # Accumulate -Wfoo and -Wno-bar separately.
1206 # We will list all of the enable flags first, and the disable flags second.
1207 # Note that we do not add -Werror, because that would enable it for all
1208 # configure tests. If a configure test failed due to -Werror this would
1209 # just silently disable some features, so it's too error prone.
1211 warn_flags=
1212 add_to warn_flags -Wold-style-declaration
1213 add_to warn_flags -Wold-style-definition
1214 add_to warn_flags -Wtype-limits
1215 add_to warn_flags -Wformat-security
1216 add_to warn_flags -Wformat-y2k
1217 add_to warn_flags -Winit-self
1218 add_to warn_flags -Wignored-qualifiers
1219 add_to warn_flags -Wempty-body
1220 add_to warn_flags -Wnested-externs
1221 add_to warn_flags -Wendif-labels
1222 add_to warn_flags -Wexpansion-to-defined
1223 add_to warn_flags -Wimplicit-fallthrough=2
1225 nowarn_flags=
1226 add_to nowarn_flags -Wno-initializer-overrides
1227 add_to nowarn_flags -Wno-missing-include-dirs
1228 add_to nowarn_flags -Wno-shift-negative-value
1229 add_to nowarn_flags -Wno-string-plus-int
1230 add_to nowarn_flags -Wno-typedef-redefinition
1231 add_to nowarn_flags -Wno-tautological-type-limit-compare
1232 add_to nowarn_flags -Wno-psabi
1234 gcc_flags="$warn_flags $nowarn_flags"
1236 cc_has_warning_flag() {
1237 write_c_skeleton;
1239 # Use the positive sense of the flag when testing for -Wno-wombat
1240 # support (gcc will happily accept the -Wno- form of unknown
1241 # warning options).
1242 optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1243 compile_prog "-Werror $optflag" ""
1246 objcc_has_warning_flag() {
1247 cat > $TMPM <<EOF
1248 int main(void) { return 0; }
1251 # Use the positive sense of the flag when testing for -Wno-wombat
1252 # support (gcc will happily accept the -Wno- form of unknown
1253 # warning options).
1254 optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1255 do_objc -Werror $optflag \
1256 $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1257 -o $TMPE $TMPM $QEMU_LDFLAGS
1260 for flag in $gcc_flags; do
1261 if cc_has_warning_flag $flag ; then
1262 QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1264 if objcc_has_warning_flag $flag ; then
1265 QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1267 done
1269 if test "$stack_protector" != "no"; then
1270 cat > $TMPC << EOF
1271 int main(int argc, char *argv[])
1273 char arr[64], *p = arr, *c = argv[0];
1274 while (*c) {
1275 *p++ = *c++;
1277 return 0;
1280 gcc_flags="-fstack-protector-strong -fstack-protector-all"
1281 sp_on=0
1282 for flag in $gcc_flags; do
1283 # We need to check both a compile and a link, since some compiler
1284 # setups fail only on a .c->.o compile and some only at link time
1285 if compile_object "-Werror $flag" &&
1286 compile_prog "-Werror $flag" ""; then
1287 QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1288 QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1289 sp_on=1
1290 break
1292 done
1293 if test "$stack_protector" = yes; then
1294 if test $sp_on = 0; then
1295 error_exit "Stack protector not supported"
1300 # Disable -Wmissing-braces on older compilers that warn even for
1301 # the "universal" C zero initializer {0}.
1302 cat > $TMPC << EOF
1303 struct {
1304 int a[2];
1305 } x = {0};
1307 if compile_object "-Werror" "" ; then
1309 else
1310 QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1313 # Our module code doesn't support Windows
1314 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1315 error_exit "Modules are not available for Windows"
1318 # Static linking is not possible with plugins, modules or PIE
1319 if test "$static" = "yes" ; then
1320 if test "$modules" = "yes" ; then
1321 error_exit "static and modules are mutually incompatible"
1323 if test "$plugins" = "yes"; then
1324 error_exit "static and plugins are mutually incompatible"
1325 else
1326 plugins="no"
1329 test "$plugins" = "" && plugins=yes
1331 cat > $TMPC << EOF
1333 #ifdef __linux__
1334 # define THREAD __thread
1335 #else
1336 # define THREAD
1337 #endif
1338 static THREAD int tls_var;
1339 int main(void) { return tls_var; }
1342 if test "$static" = "yes"; then
1343 if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1344 CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1345 pie="yes"
1346 elif test "$pie" = "yes"; then
1347 error_exit "-static-pie not available due to missing toolchain support"
1348 else
1349 pie="no"
1351 elif test "$pie" = "no"; then
1352 if compile_prog "-Werror -fno-pie" "-no-pie"; then
1353 CONFIGURE_CFLAGS="-fno-pie $CONFIGURE_CFLAGS"
1354 CONFIGURE_LDFLAGS="-no-pie $CONFIGURE_LDFLAGS"
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.
1357 QEMU_CFLAGS="-fno-pie -no-pie $QEMU_CFLAGS"
1359 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1360 CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1361 CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1362 pie="yes"
1363 elif test "$pie" = "yes"; then
1364 error_exit "PIE not available due to missing toolchain support"
1365 else
1366 echo "Disabling PIE due to missing toolchain support"
1367 pie="no"
1370 ##########################################
1371 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1372 # use i686 as default anyway, but for those that don't, an explicit
1373 # specification is necessary
1375 if test "$cpu" = "i386"; then
1376 cat > $TMPC << EOF
1377 static int sfaa(int *ptr)
1379 return __sync_fetch_and_and(ptr, 0);
1382 int main(void)
1384 int val = 42;
1385 val = __sync_val_compare_and_swap(&val, 0, 1);
1386 sfaa(&val);
1387 return val;
1390 if ! compile_prog "" "" ; then
1391 QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1395 if test -z "${target_list+xxx}" ; then
1396 default_targets=yes
1397 for target in $default_target_list; do
1398 target_list="$target_list $target"
1399 done
1400 target_list="${target_list# }"
1401 else
1402 default_targets=no
1403 target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1404 for target in $target_list; do
1405 # Check that we recognised the target name; this allows a more
1406 # friendly error message than if we let it fall through.
1407 case " $default_target_list " in
1408 *" $target "*)
1411 error_exit "Unknown target name '$target'"
1413 esac
1414 done
1417 # see if system emulation was really requested
1418 case " $target_list " in
1419 *"-softmmu "*) softmmu=yes
1421 *) softmmu=no
1423 esac
1425 if test "$tcg" = "auto"; then
1426 if test -z "$target_list"; then
1427 tcg="disabled"
1428 else
1429 tcg="enabled"
1433 if test "$tcg" = "enabled"; then
1434 git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1435 git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1438 # ---
1439 # big/little endian test
1440 cat > $TMPC << EOF
1441 #include <stdio.h>
1442 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1443 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1444 int main(int argc, char *argv[])
1446 return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1450 if compile_prog ; then
1451 if strings -a $TMPE | grep -q BiGeNdIaN ; then
1452 bigendian="yes"
1453 elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1454 bigendian="no"
1455 else
1456 echo big/little test failed
1457 exit 1
1459 else
1460 echo big/little test failed
1461 exit 1
1464 ##########################################
1465 # pkg-config probe
1467 if ! has "$pkg_config_exe"; then
1468 error_exit "pkg-config binary '$pkg_config_exe' not found"
1471 ##########################################
1472 # glib support probe
1474 # When bumping glib_req_ver, please check also whether we should increase
1475 # the _WIN32_WINNT setting in osdep.h according to the value from glib
1476 glib_req_ver=2.56
1477 glib_modules=gthread-2.0
1478 if test "$modules" = yes; then
1479 glib_modules="$glib_modules gmodule-export-2.0"
1480 elif test "$plugins" = "yes"; then
1481 glib_modules="$glib_modules gmodule-no-export-2.0"
1484 for i in $glib_modules; do
1485 if $pkg_config --atleast-version=$glib_req_ver $i; then
1486 glib_cflags=$($pkg_config --cflags $i)
1487 glib_libs=$($pkg_config --libs $i)
1488 else
1489 error_exit "glib-$glib_req_ver $i is required to compile QEMU"
1491 done
1493 glib_bindir="$($pkg_config --variable=bindir glib-2.0)"
1494 if test -z "$glib_bindir" ; then
1495 glib_bindir="$($pkg_config --variable=prefix glib-2.0)"/bin
1498 # This workaround is required due to a bug in pkg-config file for glib as it
1499 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
1501 if test "$static" = yes && test "$mingw32" = yes; then
1502 glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
1505 # Sanity check that the current size_t matches the
1506 # size that glib thinks it should be. This catches
1507 # problems on multi-arch where people try to build
1508 # 32-bit QEMU while pointing at 64-bit glib headers
1509 cat > $TMPC <<EOF
1510 #include <glib.h>
1511 #include <unistd.h>
1513 #define QEMU_BUILD_BUG_ON(x) \
1514 typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
1516 int main(void) {
1517 QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
1518 return 0;
1522 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
1523 error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
1524 "You probably need to set PKG_CONFIG_LIBDIR"\
1525 "to point to the right pkg-config files for your"\
1526 "build target"
1529 # Silence clang warnings triggered by glib < 2.57.2
1530 cat > $TMPC << EOF
1531 #include <glib.h>
1532 typedef struct Foo {
1533 int i;
1534 } Foo;
1535 static void foo_free(Foo *f)
1537 g_free(f);
1539 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
1540 int main(void) { return 0; }
1542 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
1543 if cc_has_warning_flag "-Wno-unused-function"; then
1544 glib_cflags="$glib_cflags -Wno-unused-function"
1545 CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
1549 ##########################################
1550 # fdt probe
1552 case "$fdt" in
1553 auto | enabled | internal)
1554 # Simpler to always update submodule, even if not needed.
1555 git_submodules="${git_submodules} dtc"
1557 esac
1559 ##########################################
1560 # check and set a backend for coroutine
1562 # We prefer ucontext, but it's not always possible. The fallback
1563 # is sigcontext. On Windows the only valid backend is the Windows
1564 # specific one.
1566 ucontext_works=no
1567 if test "$darwin" != "yes"; then
1568 cat > $TMPC << EOF
1569 #include <ucontext.h>
1570 #ifdef __stub_makecontext
1571 #error Ignoring glibc stub makecontext which will always fail
1572 #endif
1573 int main(void) { makecontext(0, 0, 0); return 0; }
1575 if compile_prog "" "" ; then
1576 ucontext_works=yes
1580 if test "$coroutine" = ""; then
1581 if test "$mingw32" = "yes"; then
1582 coroutine=win32
1583 elif test "$ucontext_works" = "yes"; then
1584 coroutine=ucontext
1585 else
1586 coroutine=sigaltstack
1588 else
1589 case $coroutine in
1590 windows)
1591 if test "$mingw32" != "yes"; then
1592 error_exit "'windows' coroutine backend only valid for Windows"
1594 # Unfortunately the user visible backend name doesn't match the
1595 # coroutine-*.c filename for this case, so we have to adjust it here.
1596 coroutine=win32
1598 ucontext)
1599 if test "$ucontext_works" != "yes"; then
1600 error_exit "'ucontext' backend requested but makecontext not available"
1603 sigaltstack)
1604 if test "$mingw32" = "yes"; then
1605 error_exit "only the 'windows' coroutine backend is valid for Windows"
1609 error_exit "unknown coroutine backend $coroutine"
1611 esac
1614 ##################################################
1615 # SafeStack
1618 if test "$safe_stack" = "yes"; then
1619 cat > $TMPC << EOF
1620 int main(int argc, char *argv[])
1622 #if ! __has_feature(safe_stack)
1623 #error SafeStack Disabled
1624 #endif
1625 return 0;
1628 flag="-fsanitize=safe-stack"
1629 # Check that safe-stack is supported and enabled.
1630 if compile_prog "-Werror $flag" "$flag"; then
1631 # Flag needed both at compilation and at linking
1632 QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1633 QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1634 else
1635 error_exit "SafeStack not supported by your compiler"
1637 if test "$coroutine" != "ucontext"; then
1638 error_exit "SafeStack is only supported by the coroutine backend ucontext"
1640 else
1641 cat > $TMPC << EOF
1642 int main(int argc, char *argv[])
1644 #if defined(__has_feature)
1645 #if __has_feature(safe_stack)
1646 #error SafeStack Enabled
1647 #endif
1648 #endif
1649 return 0;
1652 if test "$safe_stack" = "no"; then
1653 # Make sure that safe-stack is disabled
1654 if ! compile_prog "-Werror" ""; then
1655 # SafeStack was already enabled, try to explicitly remove the feature
1656 flag="-fno-sanitize=safe-stack"
1657 if ! compile_prog "-Werror $flag" "$flag"; then
1658 error_exit "Configure cannot disable SafeStack"
1660 QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1661 QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1663 else # "$safe_stack" = ""
1664 # Set safe_stack to yes or no based on pre-existing flags
1665 if compile_prog "-Werror" ""; then
1666 safe_stack="no"
1667 else
1668 safe_stack="yes"
1669 if test "$coroutine" != "ucontext"; then
1670 error_exit "SafeStack is only supported by the coroutine backend ucontext"
1676 ########################################
1677 # check if ccache is interfering with
1678 # semantic analysis of macros
1680 unset CCACHE_CPP2
1681 ccache_cpp2=no
1682 cat > $TMPC << EOF
1683 static const int Z = 1;
1684 #define fn() ({ Z; })
1685 #define TAUT(X) ((X) == Z)
1686 #define PAREN(X, Y) (X == Y)
1687 #define ID(X) (X)
1688 int main(int argc, char *argv[])
1690 int x = 0, y = 0;
1691 x = ID(x);
1692 x = fn();
1693 fn();
1694 if (PAREN(x, y)) return 0;
1695 if (TAUT(Z)) return 0;
1696 return 0;
1700 if ! compile_object "-Werror"; then
1701 ccache_cpp2=yes
1704 #################################################
1705 # clang does not support glibc + FORTIFY_SOURCE.
1707 if test "$fortify_source" != "no"; then
1708 if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
1709 fortify_source="no";
1710 elif test -n "$cxx" && has $cxx &&
1711 echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
1712 fortify_source="no";
1713 else
1714 fortify_source="yes"
1718 ##########################################
1719 # checks for sanitizers
1721 have_asan=no
1722 have_ubsan=no
1723 have_asan_iface_h=no
1724 have_asan_iface_fiber=no
1726 if test "$sanitizers" = "yes" ; then
1727 write_c_skeleton
1728 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
1729 have_asan=yes
1732 # we could use a simple skeleton for flags checks, but this also
1733 # detect the static linking issue of ubsan, see also:
1734 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
1735 cat > $TMPC << EOF
1736 #include <stdlib.h>
1737 int main(void) {
1738 void *tmp = malloc(10);
1739 if (tmp != NULL) {
1740 return *(int *)(tmp + 2);
1742 return 1;
1745 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
1746 have_ubsan=yes
1749 if check_include "sanitizer/asan_interface.h" ; then
1750 have_asan_iface_h=yes
1753 cat > $TMPC << EOF
1754 #include <sanitizer/asan_interface.h>
1755 int main(void) {
1756 __sanitizer_start_switch_fiber(0, 0, 0);
1757 return 0;
1760 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
1761 have_asan_iface_fiber=yes
1765 # Thread sanitizer is, for now, much noisier than the other sanitizers;
1766 # keep it separate until that is not the case.
1767 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
1768 error_exit "TSAN is not supported with other sanitiziers."
1770 have_tsan=no
1771 have_tsan_iface_fiber=no
1772 if test "$tsan" = "yes" ; then
1773 write_c_skeleton
1774 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1775 have_tsan=yes
1777 cat > $TMPC << EOF
1778 #include <sanitizer/tsan_interface.h>
1779 int main(void) {
1780 __tsan_create_fiber(0);
1781 return 0;
1784 if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
1785 have_tsan_iface_fiber=yes
1789 ##########################################
1790 # check for slirp
1792 case "$slirp" in
1793 auto | enabled | internal)
1794 # Simpler to always update submodule, even if not needed.
1795 git_submodules="${git_submodules} slirp"
1797 esac
1799 ##########################################
1800 # functions to probe cross compilers
1802 container="no"
1803 if test $use_containers = "yes"; then
1804 if has "docker" || has "podman"; then
1805 container=$($python "$source_path"/tests/docker/docker.py probe)
1809 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1810 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1811 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1812 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1813 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1814 : ${cross_prefix_armeb="$cross_prefix_arm"}
1815 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1816 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1817 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1818 : ${cross_prefix_i386="i686-linux-gnu-"}
1819 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1820 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1821 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1822 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1823 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1824 : ${cross_prefix_mips="mips-linux-gnu-"}
1825 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1826 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1827 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1828 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1829 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1830 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1831 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1832 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1833 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1834 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1836 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1837 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1838 : ${cross_cc_armeb="$cross_cc_arm"}
1839 : ${cross_cc_cflags_armeb="-mbig-endian"}
1840 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1841 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
1842 : ${cross_cc_cflags_i386="-m32"}
1843 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1844 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1845 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1846 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1847 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1848 : ${cross_cc_sparc="$cross_cc_sparc64"}
1849 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1850 : ${cross_cc_cflags_x86_64="-m64"}
1852 compute_target_variable() {
1853 eval "$2="
1854 if eval test -n "\"\${cross_prefix_$1}\""; then
1855 if eval has "\"\${cross_prefix_$1}\$3\""; then
1856 eval "$2=\"\${cross_prefix_$1}\$3\""
1861 # probe_target_compiler TARGET
1863 # Look for a compiler for the given target, either native or cross.
1864 # Set variables target_* if a compiler is found, and container_cross_*
1865 # if a Docker-based cross-compiler image is known for the target.
1866 # Set got_cross_cc to yes/no depending on whether a non-container-based
1867 # compiler was found.
1869 # If TARGET is a user-mode emulation target, also set build_static to
1870 # "y" if static linking is possible.
1872 probe_target_compiler() {
1873 # reset all output variables
1874 got_cross_cc=no
1875 container_image=
1876 container_hosts=
1877 container_cross_cc=
1878 container_cross_ar=
1879 container_cross_as=
1880 container_cross_ld=
1881 container_cross_nm=
1882 container_cross_objcopy=
1883 container_cross_ranlib=
1884 container_cross_strip=
1886 target_arch=${1%%-*}
1887 case $target_arch in
1888 aarch64) container_hosts="x86_64 aarch64" ;;
1889 alpha) container_hosts=x86_64 ;;
1890 arm) container_hosts="x86_64 aarch64" ;;
1891 cris) container_hosts=x86_64 ;;
1892 hexagon) container_hosts=x86_64 ;;
1893 hppa) container_hosts=x86_64 ;;
1894 i386) container_hosts=x86_64 ;;
1895 loongarch64) container_hosts=x86_64 ;;
1896 m68k) container_hosts=x86_64 ;;
1897 microblaze) container_hosts=x86_64 ;;
1898 mips64el) container_hosts=x86_64 ;;
1899 mips64) container_hosts=x86_64 ;;
1900 mipsel) container_hosts=x86_64 ;;
1901 mips) container_hosts=x86_64 ;;
1902 nios2) container_hosts=x86_64 ;;
1903 ppc) container_hosts=x86_64 ;;
1904 ppc64|ppc64le) container_hosts=x86_64 ;;
1905 riscv64) container_hosts=x86_64 ;;
1906 s390x) container_hosts=x86_64 ;;
1907 sh4) container_hosts=x86_64 ;;
1908 sparc64) container_hosts=x86_64 ;;
1909 tricore) container_hosts=x86_64 ;;
1910 x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1911 xtensa*) container_hosts=x86_64 ;;
1912 esac
1914 for host in $container_hosts; do
1915 test "$container" != no || continue
1916 test "$host" = "$cpu" || continue
1917 case $target_arch in
1918 aarch64)
1919 # We don't have any bigendian build tools so we only use this for AArch64
1920 container_image=debian-arm64-cross
1921 container_cross_prefix=aarch64-linux-gnu-
1922 container_cross_cc=${container_cross_prefix}gcc-10
1924 alpha)
1925 container_image=debian-alpha-cross
1926 container_cross_prefix=alpha-linux-gnu-
1928 arm)
1929 # We don't have any bigendian build tools so we only use this for ARM
1930 container_image=debian-armhf-cross
1931 container_cross_prefix=arm-linux-gnueabihf-
1933 cris)
1934 container_image=fedora-cris-cross
1935 container_cross_prefix=cris-linux-gnu-
1937 hexagon)
1938 container_image=debian-hexagon-cross
1939 container_cross_prefix=hexagon-unknown-linux-musl-
1940 container_cross_cc=${container_cross_prefix}clang
1942 hppa)
1943 container_image=debian-hppa-cross
1944 container_cross_prefix=hppa-linux-gnu-
1946 i386)
1947 container_image=fedora-i386-cross
1948 container_cross_prefix=
1950 loongarch64)
1951 container_image=debian-loongarch-cross
1952 container_cross_prefix=loongarch64-unknown-linux-gnu-
1954 m68k)
1955 container_image=debian-m68k-cross
1956 container_cross_prefix=m68k-linux-gnu-
1958 microblaze)
1959 container_image=debian-microblaze-cross
1960 container_cross_prefix=microblaze-linux-musl-
1962 mips64el)
1963 container_image=debian-mips64el-cross
1964 container_cross_prefix=mips64el-linux-gnuabi64-
1966 mips64)
1967 container_image=debian-mips64-cross
1968 container_cross_prefix=mips64-linux-gnuabi64-
1970 mipsel)
1971 container_image=debian-mipsel-cross
1972 container_cross_prefix=mipsel-linux-gnu-
1974 mips)
1975 container_image=debian-mips-cross
1976 container_cross_prefix=mips-linux-gnu-
1978 nios2)
1979 container_image=debian-nios2-cross
1980 container_cross_prefix=nios2-linux-gnu-
1982 ppc)
1983 container_image=debian-powerpc-test-cross
1984 container_cross_prefix=powerpc-linux-gnu-
1985 container_cross_cc=${container_cross_prefix}gcc-10
1987 ppc64|ppc64le)
1988 container_image=debian-powerpc-test-cross
1989 container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1990 container_cross_cc=${container_cross_prefix}gcc-10
1992 riscv64)
1993 container_image=debian-riscv64-test-cross
1994 container_cross_prefix=riscv64-linux-gnu-
1996 s390x)
1997 container_image=debian-s390x-cross
1998 container_cross_prefix=s390x-linux-gnu-
2000 sh4)
2001 container_image=debian-sh4-cross
2002 container_cross_prefix=sh4-linux-gnu-
2004 sparc64)
2005 container_image=debian-sparc64-cross
2006 container_cross_prefix=sparc64-linux-gnu-
2008 tricore)
2009 container_image=debian-tricore-cross
2010 container_cross_prefix=tricore-
2011 container_cross_as=tricore-as
2012 container_cross_ld=tricore-ld
2013 break
2015 x86_64)
2016 container_image=debian-amd64-cross
2017 container_cross_prefix=x86_64-linux-gnu-
2019 xtensa*)
2020 container_hosts=x86_64
2021 container_image=debian-xtensa-cross
2023 # default to the dc232b cpu
2024 container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
2026 esac
2027 : ${container_cross_cc:=${container_cross_prefix}gcc}
2028 : ${container_cross_ar:=${container_cross_prefix}ar}
2029 : ${container_cross_as:=${container_cross_prefix}as}
2030 : ${container_cross_ld:=${container_cross_prefix}ld}
2031 : ${container_cross_nm:=${container_cross_prefix}nm}
2032 : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
2033 : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
2034 : ${container_cross_strip:=${container_cross_prefix}strip}
2035 done
2037 try=cross
2038 case "$target_arch:$cpu" in
2039 aarch64_be:aarch64 | \
2040 armeb:arm | \
2041 i386:x86_64 | \
2042 mips*:mips64 | \
2043 ppc*:ppc64 | \
2044 sparc:sparc64 | \
2045 "$cpu:$cpu")
2046 try='native cross' ;;
2047 esac
2048 eval "target_cflags=\${cross_cc_cflags_$target_arch}"
2049 for thistry in $try; do
2050 case $thistry in
2051 native)
2052 target_cc=$cc
2053 target_ccas=$ccas
2054 target_ar=$ar
2055 target_as=$as
2056 target_ld=$ld
2057 target_nm=$nm
2058 target_objcopy=$objcopy
2059 target_ranlib=$ranlib
2060 target_strip=$strip
2062 cross)
2063 target_cc=
2064 if eval test -n "\"\${cross_cc_$target_arch}\""; then
2065 if eval has "\"\${cross_cc_$target_arch}\""; then
2066 eval "target_cc=\"\${cross_cc_$target_arch}\""
2068 else
2069 compute_target_variable $target_arch target_cc gcc
2071 target_ccas=$target_cc
2072 compute_target_variable $target_arch target_ar ar
2073 compute_target_variable $target_arch target_as as
2074 compute_target_variable $target_arch target_ld ld
2075 compute_target_variable $target_arch target_nm nm
2076 compute_target_variable $target_arch target_objcopy objcopy
2077 compute_target_variable $target_arch target_ranlib ranlib
2078 compute_target_variable $target_arch target_strip strip
2080 esac
2082 if test -n "$target_cc"; then
2083 case $target_arch in
2084 i386|x86_64)
2085 if $target_cc --version | grep -qi "clang"; then
2086 continue
2089 esac
2090 elif test -n "$target_as" && test -n "$target_ld"; then
2091 # Special handling for assembler only targets
2092 case $target in
2093 tricore-softmmu)
2094 build_static=
2095 got_cross_cc=yes
2096 break
2099 continue
2101 esac
2102 else
2103 continue
2106 write_c_skeleton
2107 case $1 in
2108 *-softmmu)
2109 if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
2110 do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
2111 got_cross_cc=yes
2112 break
2116 if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
2117 build_static=y
2118 got_cross_cc=yes
2119 break
2121 if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
2122 build_static=
2123 got_cross_cc=yes
2124 break
2127 esac
2128 done
2129 if test $got_cross_cc != yes; then
2130 build_static=
2131 target_cc=
2132 target_ccas=
2133 target_ar=
2134 target_as=
2135 target_ld=
2136 target_nm=
2137 target_objcopy=
2138 target_ranlib=
2139 target_strip=
2143 write_target_makefile() {
2144 echo "EXTRA_CFLAGS=$target_cflags"
2145 if test -n "$target_cc"; then
2146 echo "CC=$target_cc"
2147 echo "CCAS=$target_ccas"
2149 if test -n "$target_ar"; then
2150 echo "AR=$target_ar"
2152 if test -n "$target_as"; then
2153 echo "AS=$target_as"
2155 if test -n "$target_ld"; then
2156 echo "LD=$target_ld"
2158 if test -n "$target_nm"; then
2159 echo "NM=$target_nm"
2161 if test -n "$target_objcopy"; then
2162 echo "OBJCOPY=$target_objcopy"
2164 if test -n "$target_ranlib"; then
2165 echo "RANLIB=$target_ranlib"
2167 if test -n "$target_strip"; then
2168 echo "STRIP=$target_strip"
2172 write_container_target_makefile() {
2173 echo "EXTRA_CFLAGS=$target_cflags"
2174 if test -n "$container_cross_cc"; then
2175 echo "CC=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2176 echo "CCAS=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
2178 echo "AR=\$(DOCKER_SCRIPT) cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
2179 echo "AS=\$(DOCKER_SCRIPT) cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
2180 echo "LD=\$(DOCKER_SCRIPT) cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
2181 echo "NM=\$(DOCKER_SCRIPT) cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
2182 echo "OBJCOPY=\$(DOCKER_SCRIPT) cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
2183 echo "RANLIB=\$(DOCKER_SCRIPT) cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
2184 echo "STRIP=\$(DOCKER_SCRIPT) cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
2189 ##########################################
2190 # check for vfio_user_server
2192 case "$vfio_user_server" in
2193 enabled )
2194 if test "$git_submodules_action" != "ignore"; then
2195 git_submodules="${git_submodules} subprojects/libvfio-user"
2198 esac
2200 ##########################################
2201 # End of CC checks
2202 # After here, no more $cc or $ld runs
2204 write_c_skeleton
2206 if test "$fortify_source" = "yes" ; then
2207 QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2210 if test "$have_asan" = "yes"; then
2211 QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2212 QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2213 if test "$have_asan_iface_h" = "no" ; then
2214 echo "ASAN build enabled, but ASAN header missing." \
2215 "Without code annotation, the report may be inferior."
2216 elif test "$have_asan_iface_fiber" = "no" ; then
2217 echo "ASAN build enabled, but ASAN header is too old." \
2218 "Without code annotation, the report may be inferior."
2221 if test "$have_tsan" = "yes" ; then
2222 if test "$have_tsan_iface_fiber" = "yes" ; then
2223 QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2224 QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2225 else
2226 error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2228 elif test "$tsan" = "yes" ; then
2229 error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2231 if test "$have_ubsan" = "yes"; then
2232 QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2233 QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2236 ##########################################
2237 # Guest agent Windows MSI package
2239 if test "$QEMU_GA_MANUFACTURER" = ""; then
2240 QEMU_GA_MANUFACTURER=QEMU
2242 if test "$QEMU_GA_DISTRO" = ""; then
2243 QEMU_GA_DISTRO=Linux
2245 if test "$QEMU_GA_VERSION" = ""; then
2246 QEMU_GA_VERSION=$(cat "$source_path"/VERSION)
2250 #######################################
2251 # cross-compiled firmware targets
2253 # Set up build tree symlinks that point back into the source tree
2254 # (these can be both files and directories).
2255 # Caution: avoid adding files or directories here using wildcards. This
2256 # will result in problems later if a new file matching the wildcard is
2257 # added to the source tree -- nothing will cause configure to be rerun
2258 # so the build tree will be missing the link back to the new file, and
2259 # tests might fail. Prefer to keep the relevant files in their own
2260 # directory and symlink the directory instead.
2261 LINKS="Makefile"
2262 LINKS="$LINKS tests/tcg/Makefile.target"
2263 LINKS="$LINKS pc-bios/optionrom/Makefile"
2264 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
2265 LINKS="$LINKS pc-bios/vof/Makefile"
2266 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
2267 LINKS="$LINKS tests/avocado tests/data"
2268 LINKS="$LINKS tests/qemu-iotests/check"
2269 LINKS="$LINKS python"
2270 LINKS="$LINKS contrib/plugins/Makefile "
2271 for f in $LINKS ; do
2272 if [ -e "$source_path/$f" ]; then
2273 mkdir -p "$(dirname ./"$f")"
2274 symlink "$source_path/$f" "$f"
2276 done
2278 # Mac OS X ships with a broken assembler
2279 roms=
2280 probe_target_compiler i386-softmmu
2281 if test -n "$target_cc" &&
2282 test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2283 test "$targetos" != "haiku" && test "$softmmu" = yes ; then
2284 roms="pc-bios/optionrom"
2285 config_mak=pc-bios/optionrom/config.mak
2286 echo "# Automatically generated by configure - do not modify" > $config_mak
2287 echo "TOPSRC_DIR=$source_path" >> $config_mak
2288 write_target_makefile >> $config_mak
2291 probe_target_compiler ppc-softmmu
2292 if test -n "$target_cc" && test "$softmmu" = yes; then
2293 roms="$roms pc-bios/vof"
2294 config_mak=pc-bios/vof/config.mak
2295 echo "# Automatically generated by configure - do not modify" > $config_mak
2296 echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
2297 write_target_makefile >> $config_mak
2300 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
2301 # (which is the lowest architecture level that Clang supports)
2302 probe_target_compiler s390x-softmmu
2303 if test -n "$target_cc" && test "$softmmu" = yes; then
2304 write_c_skeleton
2305 do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
2306 has_z900=$?
2307 if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
2308 if [ $has_z900 != 0 ]; then
2309 echo "WARNING: Your compiler does not support the z900!"
2310 echo " The s390-ccw bios will only work with guest CPUs >= z10."
2312 roms="$roms pc-bios/s390-ccw"
2313 config_mak=pc-bios/s390-ccw/config-host.mak
2314 echo "# Automatically generated by configure - do not modify" > $config_mak
2315 echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
2316 write_target_makefile >> $config_mak
2317 # SLOF is required for building the s390-ccw firmware on s390x,
2318 # since it is using the libnet code from SLOF for network booting.
2319 git_submodules="${git_submodules} roms/SLOF"
2323 #######################################
2324 # generate config-host.mak
2326 if ! (GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2327 exit 1
2330 config_host_mak="config-host.mak"
2332 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2333 echo >> $config_host_mak
2335 echo all: >> $config_host_mak
2336 echo "GIT=$git" >> $config_host_mak
2337 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2338 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2340 if test "$debug_tcg" = "yes" ; then
2341 echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2343 if test "$mingw32" = "yes" ; then
2344 echo "CONFIG_WIN32=y" >> $config_host_mak
2345 echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
2346 echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
2347 echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
2348 else
2349 echo "CONFIG_POSIX=y" >> $config_host_mak
2352 if test "$linux" = "yes" ; then
2353 echo "CONFIG_LINUX=y" >> $config_host_mak
2356 if test "$darwin" = "yes" ; then
2357 echo "CONFIG_DARWIN=y" >> $config_host_mak
2360 if test "$solaris" = "yes" ; then
2361 echo "CONFIG_SOLARIS=y" >> $config_host_mak
2363 if test "$static" = "yes" ; then
2364 echo "CONFIG_STATIC=y" >> $config_host_mak
2366 echo "SRC_PATH=$source_path" >> $config_host_mak
2367 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2368 if test "$modules" = "yes"; then
2369 echo "CONFIG_MODULES=y" >> $config_host_mak
2372 # XXX: suppress that
2373 if [ "$bsd" = "yes" ] ; then
2374 echo "CONFIG_BSD=y" >> $config_host_mak
2377 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2379 if test "$have_asan_iface_fiber" = "yes" ; then
2380 echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2383 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2384 echo "CONFIG_TSAN=y" >> $config_host_mak
2387 if test "$plugins" = "yes" ; then
2388 echo "CONFIG_PLUGIN=y" >> $config_host_mak
2391 if test -n "$gdb_bin"; then
2392 gdb_version=$($gdb_bin --version | head -n 1)
2393 if version_ge ${gdb_version##* } 9.1; then
2394 echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2398 echo "ROMS=$roms" >> $config_host_mak
2399 echo "MAKE=$make" >> $config_host_mak
2400 echo "PYTHON=$python" >> $config_host_mak
2401 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2402 echo "MESON=$meson" >> $config_host_mak
2403 echo "NINJA=$ninja" >> $config_host_mak
2404 echo "CC=$cc" >> $config_host_mak
2405 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2406 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2407 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2408 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2409 echo "GLIB_BINDIR=$glib_bindir" >> $config_host_mak
2410 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2411 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2412 echo "EXESUF=$EXESUF" >> $config_host_mak
2414 # use included Linux headers
2415 if test "$linux" = "yes" ; then
2416 mkdir -p linux-headers
2417 case "$cpu" in
2418 i386|x86_64)
2419 linux_arch=x86
2421 ppc|ppc64)
2422 linux_arch=powerpc
2424 s390x)
2425 linux_arch=s390
2427 aarch64)
2428 linux_arch=arm64
2430 loongarch*)
2431 linux_arch=loongarch
2433 mips64)
2434 linux_arch=mips
2437 # For most CPUs the kernel architecture name and QEMU CPU name match.
2438 linux_arch="$cpu"
2440 esac
2441 # For non-KVM architectures we will not have asm headers
2442 if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2443 symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2447 for target in $target_list; do
2448 target_dir="$target"
2449 target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2450 mkdir -p "$target_dir"
2451 case $target in
2452 *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2453 *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2454 esac
2455 done
2457 if test "$default_targets" = "yes"; then
2458 echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2461 if test "$ccache_cpp2" = "yes"; then
2462 echo "export CCACHE_CPP2=y" >> $config_host_mak
2465 if test "$safe_stack" = "yes"; then
2466 echo "CONFIG_SAFESTACK=y" >> $config_host_mak
2469 # tests/tcg configuration
2470 (makefile=tests/tcg/Makefile.prereqs
2471 echo "# Automatically generated by configure - do not modify" > $makefile
2473 config_host_mak=tests/tcg/config-host.mak
2474 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2475 echo "SRC_PATH=$source_path" >> $config_host_mak
2476 echo "HOST_CC=$host_cc" >> $config_host_mak
2478 tcg_tests_targets=
2479 for target in $target_list; do
2480 arch=${target%%-*}
2482 config_target_mak=tests/tcg/config-$target.mak
2484 echo "# Automatically generated by configure - do not modify" > $config_target_mak
2485 echo "TARGET_NAME=$arch" >> "$config_target_mak"
2486 case $target in
2487 xtensa*-linux-user)
2488 # the toolchain is not complete with headers, only build softmmu tests
2489 continue
2491 *-softmmu)
2492 test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
2493 qemu="qemu-system-$arch"
2495 *-linux-user|*-bsd-user)
2496 qemu="qemu-$arch"
2498 esac
2500 probe_target_compiler $target
2501 if test $got_cross_cc = yes; then
2502 # Test for compiler features for optional tests. We only do this
2503 # for cross compilers because ensuring the docker containers based
2504 # compilers is a requirememt for adding a new test that needs a
2505 # compiler feature.
2507 echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
2508 write_target_makefile >> "$config_target_mak"
2509 case $target in
2510 aarch64-*)
2511 if do_compiler "$target_cc" $target_cflags \
2512 -march=armv8.1-a+sve -o $TMPE $TMPC; then
2513 echo "CROSS_CC_HAS_SVE=y" >> "$config_target_mak"
2515 if do_compiler "$target_cc" $target_cflags \
2516 -march=armv8.1-a+sve2 -o $TMPE $TMPC; then
2517 echo "CROSS_CC_HAS_SVE2=y" >> "$config_target_mak"
2519 if do_compiler "$target_cc" $target_cflags \
2520 -march=armv8.3-a -o $TMPE $TMPC; then
2521 echo "CROSS_CC_HAS_ARMV8_3=y" >> "$config_target_mak"
2523 if do_compiler "$target_cc" $target_cflags \
2524 -mbranch-protection=standard -o $TMPE $TMPC; then
2525 echo "CROSS_CC_HAS_ARMV8_BTI=y" >> "$config_target_mak"
2527 if do_compiler "$target_cc" $target_cflags \
2528 -march=armv8.5-a+memtag -o $TMPE $TMPC; then
2529 echo "CROSS_CC_HAS_ARMV8_MTE=y" >> "$config_target_mak"
2532 ppc*)
2533 if do_compiler "$target_cc" $target_cflags \
2534 -mpower8-vector -o $TMPE $TMPC; then
2535 echo "CROSS_CC_HAS_POWER8_VECTOR=y" >> "$config_target_mak"
2537 if do_compiler "$target_cc" $target_cflags \
2538 -mpower10 -o $TMPE $TMPC; then
2539 echo "CROSS_CC_HAS_POWER10=y" >> "$config_target_mak"
2542 i386-linux-user)
2543 if do_compiler "$target_cc" $target_cflags \
2544 -Werror -fno-pie -o $TMPE $TMPC; then
2545 echo "CROSS_CC_HAS_I386_NOPIE=y" >> "$config_target_mak"
2548 esac
2549 elif test -n "$container_image"; then
2550 echo "build-tcg-tests-$target: docker-image-$container_image" >> $makefile
2551 echo "BUILD_STATIC=y" >> "$config_target_mak"
2552 write_container_target_makefile >> "$config_target_mak"
2553 case $target in
2554 aarch64-*)
2555 echo "CROSS_CC_HAS_SVE=y" >> "$config_target_mak"
2556 echo "CROSS_CC_HAS_SVE2=y" >> "$config_target_mak"
2557 echo "CROSS_CC_HAS_ARMV8_3=y" >> "$config_target_mak"
2558 echo "CROSS_CC_HAS_ARMV8_BTI=y" >> "$config_target_mak"
2559 echo "CROSS_CC_HAS_ARMV8_MTE=y" >> "$config_target_mak"
2561 ppc*)
2562 echo "CROSS_CC_HAS_POWER8_VECTOR=y" >> "$config_target_mak"
2563 echo "CROSS_CC_HAS_POWER10=y" >> "$config_target_mak"
2565 i386-linux-user)
2566 echo "CROSS_CC_HAS_I386_NOPIE=y" >> "$config_target_mak"
2568 esac
2569 got_cross_cc=yes
2571 if test $got_cross_cc = yes; then
2572 mkdir -p tests/tcg/$target
2573 echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
2574 echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> $makefile
2575 tcg_tests_targets="$tcg_tests_targets $target"
2577 done
2578 echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $makefile)
2580 if test "$skip_meson" = no; then
2581 cross="config-meson.cross.new"
2582 meson_quote() {
2583 test $# = 0 && return
2584 echo "'$(echo $* | sed "s/ /','/g")'"
2587 echo "# Automatically generated by configure - do not modify" > $cross
2588 echo "[properties]" >> $cross
2590 # unroll any custom device configs
2591 for a in $device_archs; do
2592 eval "c=\$devices_${a}"
2593 echo "${a}-softmmu = '$c'" >> $cross
2594 done
2596 echo "[built-in options]" >> $cross
2597 echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
2598 echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
2599 test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
2600 echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
2601 echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
2602 echo "[binaries]" >> $cross
2603 echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
2604 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
2605 test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
2606 echo "ar = [$(meson_quote $ar)]" >> $cross
2607 echo "nm = [$(meson_quote $nm)]" >> $cross
2608 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
2609 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
2610 if has $sdl2_config; then
2611 echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
2613 echo "strip = [$(meson_quote $strip)]" >> $cross
2614 echo "widl = [$(meson_quote $widl)]" >> $cross
2615 echo "windres = [$(meson_quote $windres)]" >> $cross
2616 if test "$cross_compile" = "yes"; then
2617 cross_arg="--cross-file config-meson.cross"
2618 echo "[host_machine]" >> $cross
2619 echo "system = '$targetos'" >> $cross
2620 case "$cpu" in
2621 i386)
2622 echo "cpu_family = 'x86'" >> $cross
2625 echo "cpu_family = '$cpu'" >> $cross
2627 esac
2628 echo "cpu = '$cpu'" >> $cross
2629 if test "$bigendian" = "yes" ; then
2630 echo "endian = 'big'" >> $cross
2631 else
2632 echo "endian = 'little'" >> $cross
2634 else
2635 cross_arg="--native-file config-meson.cross"
2637 mv $cross config-meson.cross
2639 rm -rf meson-private meson-info meson-logs
2641 # Built-in options
2642 test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
2643 test "$default_feature" = no && meson_option_add -Dauto_features=disabled
2644 test "$pie" = no && meson_option_add -Db_pie=false
2645 test "$werror" = yes && meson_option_add -Dwerror=true
2647 # QEMU options
2648 test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
2649 test "$fdt" != auto && meson_option_add "-Dfdt=$fdt"
2650 test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
2651 test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
2652 test "$slirp" != auto && meson_option_add "-Dslirp=$slirp"
2653 test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
2654 test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
2655 test "$vfio_user_server" != auto && meson_option_add "-Dvfio_user_server=$vfio_user_server"
2656 run_meson() {
2657 NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
2659 eval run_meson $meson_options
2660 if test "$?" -ne 0 ; then
2661 error_exit "meson setup failed"
2663 else
2664 if test -f meson-private/cmd_line.txt; then
2665 # Adjust old command line options whose type was changed
2666 # Avoids having to use "setup --wipe" when Meson is upgraded
2667 perl -i -ne '
2668 s/^gettext = true$/gettext = auto/;
2669 s/^gettext = false$/gettext = disabled/;
2670 /^b_staticpic/ && next;
2671 print;' meson-private/cmd_line.txt
2675 # Save the configure command line for later reuse.
2676 cat <<EOD >config.status
2677 #!/bin/sh
2678 # Generated by configure.
2679 # Run this file to recreate the current configuration.
2680 # Compiler output produced by configure, useful for debugging
2681 # configure, is in config.log if it exists.
2684 preserve_env() {
2685 envname=$1
2687 eval envval=\$$envname
2689 if test -n "$envval"
2690 then
2691 echo "$envname='$envval'" >> config.status
2692 echo "export $envname" >> config.status
2693 else
2694 echo "unset $envname" >> config.status
2698 # Preserve various env variables that influence what
2699 # features/build target configure will detect
2700 preserve_env AR
2701 preserve_env AS
2702 preserve_env CC
2703 preserve_env CFLAGS
2704 preserve_env CXX
2705 preserve_env CXXFLAGS
2706 preserve_env LD
2707 preserve_env LDFLAGS
2708 preserve_env LD_LIBRARY_PATH
2709 preserve_env MAKE
2710 preserve_env NM
2711 preserve_env OBJCFLAGS
2712 preserve_env OBJCOPY
2713 preserve_env PATH
2714 preserve_env PKG_CONFIG
2715 preserve_env PKG_CONFIG_LIBDIR
2716 preserve_env PKG_CONFIG_PATH
2717 preserve_env PYTHON
2718 preserve_env SDL2_CONFIG
2719 preserve_env SMBD
2720 preserve_env STRIP
2721 preserve_env WIDL
2722 preserve_env WINDRES
2724 printf "exec" >>config.status
2725 for i in "$0" "$@"; do
2726 test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
2727 done
2728 echo ' "$@"' >>config.status
2729 chmod +x config.status
2731 rm -r "$TMPDIR1"