xref: /openbmc/qemu/configure (revision 26111a30adac00c814af6672b8d99716949613e8)
1 #!/bin/sh
2 #
3 # qemu configure script (c) 2003 Fabrice Bellard
4 #
5 
6 # Unset some variables known to interfere with behavior of common tools,
7 # just as autoconf does.  Unlike autoconf, we assume that unset exists.
8 unset CLICOLOR_FORCE GREP_OPTIONS BASH_ENV ENV MAIL MAILPATH CDPATH
9 
10 # Don't allow CCACHE, if present, to use cached results of compile tests!
11 export CCACHE_RECACHE=yes
12 
13 # make source path absolute
14 source_path=$(cd "$(dirname -- "$0")"; pwd)
15 
16 if test "$PWD" = "$source_path"
17 then
18     echo "Using './build' as the directory for build output"
19 
20     MARKER=build/auto-created-by-configure
21 
22     if test -e build
23     then
24         if test -f $MARKER
25         then
26            rm -rf build
27         else
28             echo "ERROR: ./build dir already exists and was not previously created by configure"
29             exit 1
30         fi
31     fi
32 
33     if ! mkdir build || ! touch $MARKER
34     then
35         echo "ERROR: Could not create ./build directory. Check the permissions on"
36         echo "your source directory, or try doing an out-of-tree build."
37         exit 1
38     fi
39 
40     cat > GNUmakefile <<'EOF'
41 # This file is auto-generated by configure to support in-source tree
42 # 'make' command invocation
43 
44 build:
45 	@echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
46 	@$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
47 	@if test "$(MAKECMDGOALS)" = "distclean" && \
48 	    test -e build/auto-created-by-configure ; \
49 	then \
50 	    rm -rf build GNUmakefile ; \
51 	fi
52 %: build
53 	@
54 .PHONY: build
55 GNUmakefile: ;
56 
57 EOF
58     cd build
59     exec "$source_path/configure" "$@"
60 fi
61 
62 # Temporary directory used for files created while
63 # configure runs. Since it is in the build directory
64 # we can safely blow away any previous version of it
65 # (and we need not jump through hoops to try to delete
66 # it when configure exits.)
67 TMPDIR1="config-temp"
68 rm -rf "${TMPDIR1}"
69 if ! mkdir -p "${TMPDIR1}"; then
70     echo "ERROR: failed to create temporary directory"
71     exit 1
72 fi
73 
74 TMPB="qemu-conf"
75 TMPC="${TMPDIR1}/${TMPB}.c"
76 TMPO="${TMPDIR1}/${TMPB}.o"
77 TMPE="${TMPDIR1}/${TMPB}.exe"
78 
79 rm -f config.log
80 
81 # Print a helpful header at the top of config.log
82 echo "# QEMU configure log $(date)" >> config.log
83 printf "# Configured with:" >> config.log
84 # repeat the invocation to log and stdout for CI
85 invoke=$(printf " '%s'" "$0" "$@")
86 test -n "$GITLAB_CI" && echo "configuring with: $invoke"
87 { echo "$invoke"; echo; echo "#"; } >> config.log
88 
89 quote_sh() {
90     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
91 }
92 
93 error_exit() {
94     (echo
95     echo "ERROR: $1"
96     while test -n "$2"; do
97         echo "       $2"
98         shift
99     done
100     echo) >&2
101     exit 1
102 }
103 
104 do_compiler() {
105   # Run the compiler, capturing its output to the log. First argument
106   # is compiler binary to execute.
107   compiler="$1"
108   shift
109   if test -n "$BASH_VERSION"; then eval '
110       echo >>config.log "
111 funcs: ${FUNCNAME[*]}
112 lines: ${BASH_LINENO[*]}"
113   '; fi
114   echo $compiler "$@" >> config.log
115   $compiler "$@" >> config.log 2>&1 || return $?
116 }
117 
118 do_cc() {
119     do_compiler "$cc" $CPU_CFLAGS "$@"
120 }
121 
122 compile_object() {
123   local_cflags="$1"
124   do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
125 }
126 
127 compile_prog() {
128   local_cflags="$1"
129   local_ldflags="$2"
130   do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
131       $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
132 }
133 
134 # symbolically link $1 to $2.  Portable version of "ln -sf".
135 symlink() {
136   rm -rf "$2"
137   mkdir -p "$(dirname "$2")"
138   ln -s "$1" "$2"
139 }
140 
141 # check whether a command is available to this shell (may be either an
142 # executable or a builtin)
143 has() {
144     type "$1" >/dev/null 2>&1
145 }
146 
147 version_ge () {
148     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
149     local_ver2=$(echo "$2" | tr . ' ')
150     while true; do
151         set x $local_ver1
152         local_first=${2-0}
153         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
154         shift ${2:+2}
155         local_ver1=$*
156         set x $local_ver2
157         # the second argument finished, the first must be greater or equal
158         test $# = 1 && return 0
159         test $local_first -lt $2 && return 1
160         test $local_first -gt $2 && return 0
161         shift ${2:+2}
162         local_ver2=$*
163     done
164 }
165 
166 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
167 then
168   error_exit "main directory cannot contain spaces nor colons"
169 fi
170 
171 # parse CC options first; some compiler tests are used to establish
172 # some defaults, based on the host environment
173 
174 # default parameters
175 container_engine="auto"
176 cpu=""
177 cross_compile="no"
178 cross_prefix=""
179 host_cc="cc"
180 EXTRA_CFLAGS=""
181 EXTRA_CXXFLAGS=""
182 EXTRA_OBJCFLAGS=""
183 EXTRA_LDFLAGS=""
184 
185 # Default value for a variable defining feature "foo".
186 #  * foo="no"  feature will only be used if --enable-foo arg is given
187 #  * foo=""    feature will be searched for, and if found, will be used
188 #              unless --disable-foo is given
189 #  * foo="yes" this value will only be set by --enable-foo flag.
190 #              feature will searched for,
191 #              if not found, configure exits with error
192 #
193 # Always add --enable-foo and --disable-foo command line args.
194 # Distributions want to ensure that several features are compiled in, and it
195 # is impossible without a --enable-foo that exits if a feature is not found.
196 default_feature=""
197 
198 for opt do
199   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
200   case "$opt" in
201   --cross-prefix=*) cross_prefix="$optarg"
202                     cross_compile="yes"
203   ;;
204   --cc=*) CC="$optarg"
205   ;;
206   --cxx=*) CXX="$optarg"
207   ;;
208   --objcc=*) objcc="$optarg"
209   ;;
210   --cpu=*) cpu="$optarg"
211   ;;
212   --extra-cflags=*)
213     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
214     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
215     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
216     ;;
217   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
218   ;;
219   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
220   ;;
221   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
222   ;;
223   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
224   ;;
225   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
226                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
227   ;;
228   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
229                 eval "cross_cc_${cc_arch}=\$optarg"
230   ;;
231   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
232   ;;
233   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
234                     eval "cross_prefix_${cc_arch}=\$optarg"
235   ;;
236   --without-default-features) default_feature="no"
237   ;;
238   esac
239 done
240 
241 default_cflags='-O2 -g'
242 git_submodules_action="update"
243 docs="auto"
244 EXESUF=""
245 system="yes"
246 linux_user=""
247 bsd_user=""
248 plugins="$default_feature"
249 subdirs=""
250 ninja=""
251 python=
252 download="enabled"
253 skip_meson=no
254 use_containers="yes"
255 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
256 gdb_arches=""
257 
258 # Don't accept a target_list environment variable.
259 unset target_list
260 unset target_list_exclude
261 
262 # The following Meson options are handled manually (still they
263 # are included in the automatically generated help message)
264 # because they automatically enable/disable other options
265 tcg="auto"
266 cfi="false"
267 
268 # Meson has PIE as a boolean rather than enabled/disabled/auto,
269 # and we also need to check for -static-pie before Meson runs
270 # which requires knowing whether --static is enabled.
271 pie=""
272 static="no"
273 
274 # Preferred compiler:
275 #  ${CC} (if set)
276 #  ${cross_prefix}gcc (if cross-prefix specified)
277 #  system compiler
278 if test -z "${CC}${cross_prefix}"; then
279   cc="cc"
280 else
281   cc="${CC-${cross_prefix}gcc}"
282 fi
283 
284 if test -z "${CXX}${cross_prefix}"; then
285   cxx="c++"
286 else
287   cxx="${CXX-${cross_prefix}g++}"
288 fi
289 
290 # Preferred ObjC compiler:
291 # $objcc (if set, i.e. via --objcc option)
292 # ${cross_prefix}clang (if cross-prefix specified)
293 # clang (if available)
294 # $cc
295 if test -z "${objcc}${cross_prefix}"; then
296   if has clang; then
297     objcc=clang
298   else
299     objcc="$cc"
300   fi
301 else
302   objcc="${objcc-${cross_prefix}clang}"
303 fi
304 
305 ar="${AR-${cross_prefix}ar}"
306 as="${AS-${cross_prefix}as}"
307 ccas="${CCAS-$cc}"
308 dlltool="${DLLTOOL-${cross_prefix}dlltool}"
309 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
310 ld="${LD-${cross_prefix}ld}"
311 ranlib="${RANLIB-${cross_prefix}ranlib}"
312 nm="${NM-${cross_prefix}nm}"
313 strip="${STRIP-${cross_prefix}strip}"
314 widl="${WIDL-${cross_prefix}widl}"
315 windres="${WINDRES-${cross_prefix}windres}"
316 windmc="${WINDMC-${cross_prefix}windmc}"
317 pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
318 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
319 
320 check_define() {
321 cat > $TMPC <<EOF
322 #if !defined($1)
323 #error $1 not defined
324 #endif
325 int main(void) { return 0; }
326 EOF
327   compile_object
328 }
329 
330 write_c_skeleton() {
331     cat > $TMPC <<EOF
332 int main(void) { return 0; }
333 EOF
334 }
335 
336 if check_define __linux__ ; then
337   host_os=linux
338 elif check_define _WIN32 ; then
339   host_os=windows
340 elif check_define __OpenBSD__ ; then
341   host_os=openbsd
342 elif check_define __sun__ ; then
343   host_os=sunos
344 elif check_define __HAIKU__ ; then
345   host_os=haiku
346 elif check_define __FreeBSD__ ; then
347   host_os=freebsd
348 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
349   host_os=gnu/kfreebsd
350 elif check_define __DragonFly__ ; then
351   host_os=dragonfly
352 elif check_define __NetBSD__; then
353   host_os=netbsd
354 elif check_define __APPLE__; then
355   host_os=darwin
356 else
357   # This is a fatal error, but don't report it yet, because we
358   # might be going to just print the --help text, or it might
359   # be the result of a missing compiler.
360   host_os=bogus
361 fi
362 
363 if test ! -z "$cpu" ; then
364   # command line argument
365   :
366 elif check_define __i386__ ; then
367   cpu="i386"
368 elif check_define __x86_64__ ; then
369   if check_define __ILP32__ ; then
370     cpu="x32"
371   else
372     cpu="x86_64"
373   fi
374 elif check_define __sparc__ ; then
375   if check_define __arch64__ ; then
376     cpu="sparc64"
377   else
378     cpu="sparc"
379   fi
380 elif check_define _ARCH_PPC ; then
381   if check_define _ARCH_PPC64 ; then
382     if check_define _LITTLE_ENDIAN ; then
383       cpu="ppc64le"
384     else
385       cpu="ppc64"
386     fi
387   else
388     cpu="ppc"
389   fi
390 elif check_define __mips__ ; then
391   cpu="mips"
392 elif check_define __s390__ ; then
393   if check_define __s390x__ ; then
394     cpu="s390x"
395   else
396     cpu="s390"
397   fi
398 elif check_define __riscv ; then
399   if check_define _LP64 ; then
400     cpu="riscv64"
401   else
402     cpu="riscv32"
403   fi
404 elif check_define __arm__ ; then
405   cpu="arm"
406 elif check_define __aarch64__ ; then
407   cpu="aarch64"
408 elif check_define __loongarch64 ; then
409   cpu="loongarch64"
410 else
411   # Using uname is really broken, but it is just a fallback for architectures
412   # that are going to use TCI anyway
413   cpu=$(uname -m)
414   if test "$host_os" != "bogus"; then
415     echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
416   fi
417 fi
418 
419 # Normalise host CPU name to the values used by Meson cross files and in source
420 # directories, and set multilib cflags.  The canonicalization isn't really
421 # necessary, because the architectures that we check for should not hit the
422 # 'uname -m' case, but better safe than sorry in case --cpu= is used.
423 #
424 # Note that this case should only have supported host CPUs, not guests.
425 # Please keep it sorted and synchronized with meson.build's host_arch.
426 host_arch=
427 linux_arch=
428 case "$cpu" in
429   aarch64)
430     host_arch=aarch64
431     linux_arch=arm64
432     ;;
433 
434   armv*b|armv*l|arm)
435     cpu=arm
436     host_arch=arm
437     linux_arch=arm
438     ;;
439 
440   i386|i486|i586|i686)
441     cpu="i386"
442     host_arch=i386
443     linux_arch=x86
444     CPU_CFLAGS="-m32"
445     ;;
446 
447   loongarch*)
448     cpu=loongarch64
449     host_arch=loongarch64
450     linux_arch=loongarch
451     ;;
452 
453   mips64*|mipsisa64*)
454     cpu=mips64
455     host_arch=mips
456     linux_arch=mips
457     ;;
458   mips*)
459     cpu=mips
460     host_arch=mips
461     linux_arch=mips
462     ;;
463 
464   ppc)
465     host_arch=ppc
466     linux_arch=powerpc
467     CPU_CFLAGS="-m32"
468     ;;
469   ppc64)
470     host_arch=ppc64
471     linux_arch=powerpc
472     CPU_CFLAGS="-m64 -mbig-endian"
473     ;;
474   ppc64le)
475     cpu=ppc64
476     host_arch=ppc64
477     linux_arch=powerpc
478     CPU_CFLAGS="-m64 -mlittle-endian"
479     ;;
480 
481   riscv32 | riscv64)
482     host_arch=riscv
483     linux_arch=riscv
484     ;;
485 
486   s390)
487     linux_arch=s390
488     CPU_CFLAGS="-m31"
489     ;;
490   s390x)
491     host_arch=s390x
492     linux_arch=s390
493     CPU_CFLAGS="-m64"
494     ;;
495 
496   sparc|sun4[cdmuv])
497     cpu=sparc
498     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
499     ;;
500   sparc64)
501     host_arch=sparc64
502     CPU_CFLAGS="-m64 -mcpu=ultrasparc"
503     ;;
504 
505   x32)
506     cpu="x86_64"
507     host_arch=x86_64
508     linux_arch=x86
509     CPU_CFLAGS="-mx32"
510     ;;
511   x86_64|amd64)
512     cpu="x86_64"
513     host_arch=x86_64
514     linux_arch=x86
515     CPU_CFLAGS="-m64"
516     ;;
517 esac
518 
519 if test -n "$host_arch" && {
520     ! test -d "$source_path/linux-user/include/host/$host_arch" ||
521     ! test -d "$source_path/common-user/host/$host_arch"; }; then
522     error_exit "linux-user/include/host/$host_arch does not exist." \
523        "This is a bug in the configure script, please report it."
524 fi
525 if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
526     error_exit "linux-headers/asm-$linux_arch does not exist." \
527        "This is a bug in the configure script, please report it."
528 fi
529 
530 check_py_version() {
531     # We require python >= 3.8.
532     # NB: a True python conditional creates a non-zero return code (Failure)
533     "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
534 }
535 
536 first_python=
537 if test -z "${PYTHON}"; then
538     # A bare 'python' is traditionally python 2.x, but some distros
539     # have it as python 3.x, so check in both places.
540     for binary in python3 python python3.12 python3.11 \
541                           python3.10 python3.9 python3.8; do
542         if has "$binary"; then
543             python=$(command -v "$binary")
544             if check_py_version "$python"; then
545                 # This one is good.
546                 first_python=
547                 break
548             else
549                 first_python=$python
550             fi
551         fi
552     done
553 else
554     # Same as above, but only check the environment variable.
555     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
556     python=$(command -v "$PYTHON")
557     if check_py_version "$python"; then
558         # This one is good.
559         first_python=
560     else
561         first_python=$first_python
562     fi
563 fi
564 
565 # Check for ancillary tools used in testing
566 genisoimage=
567 for binary in genisoimage mkisofs
568 do
569     if has $binary
570     then
571         genisoimage=$(command -v "$binary")
572         break
573     fi
574 done
575 
576 if test "$host_os" = "windows" ; then
577   EXESUF=".exe"
578 fi
579 
580 meson_option_build_array() {
581   printf '['
582   (if test "$host_os" = windows; then
583     IFS=\;
584   else
585     IFS=:
586   fi
587   for e in $1; do
588     printf '"""'
589     # backslash escape any '\' and '"' characters
590     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
591     printf '""",'
592   done)
593   printf ']\n'
594 }
595 
596 . "$source_path/scripts/meson-buildoptions.sh"
597 
598 meson_options=
599 meson_option_add() {
600   local arg
601   for arg; do
602     meson_options="$meson_options $(quote_sh "$arg")"
603   done
604 }
605 meson_option_parse() {
606   meson_options="$meson_options $(_meson_option_parse "$@")"
607   if test $? -eq 1; then
608     echo "ERROR: unknown option $1"
609     echo "Try '$0 --help' for more information"
610     exit 1
611   fi
612 }
613 
614 meson_add_machine_file() {
615   if test "$cross_compile" = "yes"; then
616     meson_option_add --cross-file "$1"
617   else
618     meson_option_add --native-file "$1"
619   fi
620 }
621 
622 for opt do
623   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
624   case "$opt" in
625   --help|-h) show_help=yes
626   ;;
627   --version|-V) exec cat "$source_path/VERSION"
628   ;;
629   --cross-prefix=*)
630   ;;
631   --cc=*)
632   ;;
633   --host-cc=*) host_cc="$optarg"
634   ;;
635   --cxx=*)
636   ;;
637   --objcc=*)
638   ;;
639   --make=*)
640   ;;
641   --install=*)
642   ;;
643   --python=*) python="$optarg"
644   ;;
645   --skip-meson) skip_meson=yes
646   ;;
647   --ninja=*) ninja="$optarg"
648   ;;
649   --extra-cflags=*)
650   ;;
651   --extra-cxxflags=*)
652   ;;
653   --extra-objcflags=*)
654   ;;
655   --extra-ldflags=*)
656   ;;
657   --cross-cc-*)
658   ;;
659   --cross-prefix-*)
660   ;;
661   --enable-docs) docs=enabled
662   ;;
663   --disable-docs) docs=disabled
664   ;;
665   --cpu=*)
666   ;;
667   --target-list=*) target_list="$optarg"
668                    if test "$target_list_exclude"; then
669                        error_exit "Can't mix --target-list with --target-list-exclude"
670                    fi
671   ;;
672   --target-list-exclude=*) target_list_exclude="$optarg"
673                    if test "$target_list"; then
674                        error_exit "Can't mix --target-list-exclude with --target-list"
675                    fi
676   ;;
677   --with-default-devices) meson_option_add -Ddefault_devices=true
678   ;;
679   --without-default-devices) meson_option_add -Ddefault_devices=false
680   ;;
681   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
682   ;;
683   --with-devices-*) device_arch=${opt#--with-devices-};
684                     device_arch=${device_arch%%=*}
685                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
686                     if test -f "$cf"; then
687                         device_archs="$device_archs $device_arch"
688                         eval "devices_${device_arch}=\$optarg"
689                     else
690                         error_exit "File $cf does not exist"
691                     fi
692   ;;
693   --without-default-features) # processed above
694   ;;
695   --static) static="yes"
696   ;;
697   --host=*|--build=*|\
698   --disable-dependency-tracking|\
699   --sbindir=*|--sharedstatedir=*|\
700   --oldincludedir=*|--datarootdir=*|--infodir=*|\
701   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
702     # These switches are silently ignored, for compatibility with
703     # autoconf-generated configure scripts. This allows QEMU's
704     # configure to be used by RPM and similar macros that set
705     # lots of directory switches by default.
706   ;;
707   --enable-debug)
708       # Enable debugging options that aren't excessively noisy
709       meson_option_parse --enable-debug-tcg ""
710       meson_option_parse --enable-debug-graph-lock ""
711       meson_option_parse --enable-debug-mutex ""
712       meson_option_add -Doptimization=0
713       default_cflags='-O0 -g'
714   ;;
715   --disable-tcg) tcg="disabled"
716   ;;
717   --enable-tcg) tcg="enabled"
718   ;;
719   --disable-system) system="no"
720   ;;
721   --enable-system) system="yes"
722   ;;
723   --disable-user)
724       linux_user="no" ;
725       bsd_user="no" ;
726   ;;
727   --enable-user) ;;
728   --disable-linux-user) linux_user="no"
729   ;;
730   --enable-linux-user) linux_user="yes"
731   ;;
732   --disable-bsd-user) bsd_user="no"
733   ;;
734   --enable-bsd-user) bsd_user="yes"
735   ;;
736   --enable-pie) pie="yes"
737   ;;
738   --disable-pie) pie="no"
739   ;;
740   --enable-cfi) cfi=true
741   ;;
742   --disable-cfi) cfi=false
743   ;;
744   --disable-download) download="disabled"; git_submodules_action=validate;
745   ;;
746   --enable-download) download="enabled"; git_submodules_action=update;
747   ;;
748   --enable-plugins) plugins="yes"
749   ;;
750   --disable-plugins) plugins="no"
751   ;;
752   --enable-containers) use_containers="yes"
753   ;;
754   --disable-containers) use_containers="no"
755   ;;
756   --container-engine=*) container_engine="$optarg"
757   ;;
758   --gdb=*) gdb_bin="$optarg"
759   ;;
760   # everything else has the same name in configure and meson
761   --*) meson_option_parse "$opt" "$optarg"
762   ;;
763   # Pass through -Dxxxx options to meson
764   -D*) meson_option_add "$opt"
765   ;;
766   esac
767 done
768 
769 if ! test -e "$source_path/.git"
770 then
771     git_submodules_action="validate"
772 fi
773 
774 if ! test -f "$source_path/subprojects/keycodemapdb/README" \
775     && test "$download" = disabled
776 then
777     echo
778     echo "ERROR: missing subprojects"
779     echo
780     if test -e "$source_path/.git"; then
781         echo "--disable-download specified but subprojects were not"
782         echo 'checked out.  Please invoke "meson subprojects download"'
783         echo "before configuring QEMU, or remove --disable-download"
784         echo "from the command line."
785     else
786         echo "This is not a GIT checkout but subproject content appears to"
787         echo "be missing. Do not use 'git archive' or GitHub download links"
788         echo "to acquire QEMU source archives. Non-GIT builds are only"
789         echo "supported with source archives linked from:"
790         echo
791         echo "  https://www.qemu.org/download/#source"
792         echo
793         echo "Developers working with GIT can use scripts/archive-source.sh"
794         echo "if they need to create valid source archives."
795     fi
796     echo
797     exit 1
798 fi
799 
800 default_target_list=""
801 mak_wilds=""
802 
803 if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
804     if [ "$linux_user" != no ]; then
805         if [ "$host_os" = linux ]; then
806             linux_user=yes
807         elif [ "$linux_user" = yes ]; then
808             error_exit "linux-user not supported on this architecture"
809         fi
810         if [ "$linux_user" = "yes" ]; then
811             mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
812         fi
813     fi
814     if [ "$bsd_user" != no ]; then
815         if [ "$bsd_user" = "" ]; then
816             test $host_os = freebsd && bsd_user=yes
817         fi
818         if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$host_os" ]; then
819             error_exit "bsd-user not supported on this host OS"
820         fi
821         if [ "$bsd_user" = "yes" ]; then
822             mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
823         fi
824     fi
825 else
826     if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
827         error_exit "user mode emulation not supported on this architecture"
828     fi
829 fi
830 if [ "$system" = "yes" ]; then
831     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
832 fi
833 
834 for config in $mak_wilds; do
835     target="$(basename "$config" .mak)"
836     if echo "$target_list_exclude" | grep -vq "$target"; then
837         default_target_list="${default_target_list} $target"
838     fi
839 done
840 
841 if test x"$show_help" = x"yes" ; then
842 cat << EOF
843 
844 Usage: configure [options]
845 Options: [defaults in brackets after descriptions]
846 
847 Standard options:
848   --help                   print this message
849   --target-list=LIST       set target list (default: build all)
850 $(echo Available targets: $default_target_list | \
851   fold -s -w 53 | sed -e 's/^/                           /')
852   --target-list-exclude=LIST exclude a set of targets from the default target-list
853 
854 Advanced options (experts only):
855   -Dmesonoptname=val       passthrough option to meson unmodified
856   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
857   --cc=CC                  use C compiler CC [$cc]
858   --host-cc=CC             when cross compiling, use C compiler CC for code run
859                            at build time [$host_cc]
860   --cxx=CXX                use C++ compiler CXX [$cxx]
861   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
862   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
863   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
864   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
865   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
866   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
867   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
868   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
869   --python=PYTHON          use specified python [$python]
870   --ninja=NINJA            use specified ninja [$ninja]
871   --static                 enable static build [$static]
872   --without-default-features default all --enable-* options to "disabled"
873   --without-default-devices  do not include any device that is not needed to
874                            start the emulator (only use if you are including
875                            desired devices in configs/devices/)
876   --with-devices-ARCH=NAME override default configs/devices
877   --enable-debug           enable common debug build options
878   --cpu=CPU                Build for host CPU [$cpu]
879   --disable-containers     don't use containers for cross-building
880   --container-engine=TYPE  which container engine to use [$container_engine]
881   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
882 EOF
883   meson_options_help
884 cat << EOF
885   system          all system emulation targets
886   user            supported user emulation targets
887   linux-user      all linux usermode emulation targets
888   bsd-user        all BSD usermode emulation targets
889   pie             Position Independent Executables
890 
891 NOTE: The object files are built at the place where configure is launched
892 EOF
893 exit 0
894 fi
895 
896 # Now that we are sure that the user did not only want to print the --help
897 # information, we should double-check that the C compiler really works:
898 write_c_skeleton
899 if ! compile_object ; then
900     error_exit "C compiler \"$cc\" either does not exist or does not work."
901 fi
902 
903 # Remove old dependency files to make sure that they get properly regenerated
904 rm -f ./*/config-devices.mak.d
905 
906 if test -z "$python"
907 then
908     # If first_python is set, there was a binary somewhere even though
909     # it was not suitable.  Use it for the error message.
910     if test -n "$first_python"; then
911         error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
912             "Use --python=/path/to/python to specify a supported Python."
913     else
914         error_exit "Python not found. Use --python=/path/to/python"
915     fi
916 fi
917 
918 if ! check_py_version "$python"; then
919   error_exit "Cannot use '$python', Python >= 3.8 is required." \
920              "Use --python=/path/to/python to specify a supported Python." \
921              "Maybe try:" \
922              "  openSUSE Leap 15.3+: zypper install python39" \
923              "  CentOS 8: dnf install python38"
924 fi
925 
926 # Resolve PATH
927 python="$(command -v "$python")"
928 
929 # Create a Python virtual environment using our configured python.
930 # The stdout of this script will be the location of a symlink that
931 # points to the configured Python.
932 # Entry point scripts for pip, meson, and sphinx are generated if those
933 # packages are present.
934 
935 # Defaults assumed for now:
936 # - venv is cleared if it exists already;
937 # - venv is allowed to use system packages;
938 # - all setup can be performed offline;
939 # - missing packages may be fetched from PyPI,
940 #   unless --disable-download is passed.
941 # - pip is not installed into the venv when possible,
942 #   but ensurepip is called as a fallback when necessary.
943 
944 echo "python determined to be '$python'"
945 echo "python version: $($python --version)"
946 
947 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
948 if test "$?" -ne 0 ; then
949     error_exit "python venv creation failed"
950 fi
951 
952 # Suppress writing compiled files
953 python="$python -B"
954 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
955 
956 # Finish preparing the virtual environment using vendored .whl files
957 
958 $mkvenv ensuregroup --dir "${source_path}/python/wheels" \
959      ${source_path}/pythondeps.toml meson || exit 1
960 
961 # At this point, we expect Meson to be installed and available.
962 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
963 # We ignore PATH completely here: we want to use the venv's Meson
964 # *exclusively*.
965 
966 meson="$(cd pyvenv/bin; pwd)/meson"
967 
968 # Conditionally ensure Sphinx is installed.
969 
970 mkvenv_online_flag=""
971 if test "$download" = "enabled" ; then
972     mkvenv_online_flag=" --online"
973 fi
974 
975 if test "$docs" != "disabled" ; then
976     if ! $mkvenv ensuregroup \
977          $(test "$docs" = "enabled" && echo "$mkvenv_online_flag") \
978          ${source_path}/pythondeps.toml docs;
979     then
980         if test "$docs" = "enabled" ; then
981             exit 1
982         fi
983         echo "Sphinx not found/usable, disabling docs."
984         docs=disabled
985     else
986         docs=enabled
987     fi
988 fi
989 
990 # Probe for ninja
991 
992 if test -z "$ninja"; then
993     for c in ninja ninja-build samu; do
994         if has $c; then
995             ninja=$(command -v "$c")
996             break
997         fi
998     done
999     if test -z "$ninja"; then
1000       error_exit "Cannot find Ninja"
1001     fi
1002 fi
1003 
1004 if test "$host_os" = "bogus"; then
1005     # Now that we know that we're not printing the help and that
1006     # the compiler works (so the results of the check_defines we used
1007     # to identify the OS are reliable), if we didn't recognize the
1008     # host OS we should stop now.
1009     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1010 fi
1011 
1012 # test for any invalid configuration combinations
1013 if test "$host_os" = "windows" && ! has "$dlltool"; then
1014   if test "$plugins" = "yes"; then
1015     error_exit "TCG plugins requires dlltool to build on Windows platforms"
1016   fi
1017   plugins="no"
1018 fi
1019 if test "$tcg" = "disabled" ; then
1020   if test "$plugins" = "yes"; then
1021     error_exit "Can't enable plugins on non-TCG builds"
1022   fi
1023   plugins="no"
1024 fi
1025 if test "$static" = "yes" ; then
1026   if test "$plugins" = "yes"; then
1027     error_exit "static and plugins are mutually incompatible"
1028   fi
1029   plugins="no"
1030 fi
1031 if test "$plugins" != "no"; then
1032   plugins=yes
1033   subdirs="$subdirs contrib/plugins"
1034 fi
1035 
1036 cat > $TMPC << EOF
1037 
1038 #ifdef __linux__
1039 #  define THREAD __thread
1040 #else
1041 #  define THREAD
1042 #endif
1043 static THREAD int tls_var;
1044 int main(void) { return tls_var; }
1045 EOF
1046 
1047 if test "$host_os" = windows || test "$host_os" = haiku; then
1048   if test "$pie" = "yes"; then
1049     error_exit "PIE not available due to missing OS support"
1050   fi
1051   pie=no
1052 fi
1053 
1054 if test "$pie" != "no"; then
1055   if test "$static" = "yes"; then
1056     pie_ldflags=-static-pie
1057   else
1058     pie_ldflags=-pie
1059   fi
1060   if compile_prog "-Werror -fPIE -DPIE" "$pie_ldflags"; then
1061     pie="yes"
1062   elif test "$pie" = "yes"; then
1063     error_exit "-static-pie not available due to missing toolchain support"
1064   else
1065     echo "Disabling PIE due to missing toolchain support"
1066     pie="no"
1067   fi
1068 fi
1069 
1070 ##########################################
1071 
1072 if test -z "${target_list+xxx}" ; then
1073     default_targets=yes
1074     for target in $default_target_list; do
1075         target_list="$target_list $target"
1076     done
1077     target_list="${target_list# }"
1078 else
1079     default_targets=no
1080     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1081     for target in $target_list; do
1082         # Check that we recognised the target name; this allows a more
1083         # friendly error message than if we let it fall through.
1084         case " $default_target_list " in
1085             *" $target "*)
1086                 ;;
1087             *)
1088                 error_exit "Unknown target name '$target'"
1089                 ;;
1090         esac
1091     done
1092 fi
1093 
1094 if test "$tcg" = "auto"; then
1095   if test -z "$target_list"; then
1096     tcg="disabled"
1097   else
1098     tcg="enabled"
1099   fi
1100 fi
1101 
1102 #########################################
1103 # gdb test
1104 
1105 if test -n "$gdb_bin"; then
1106     gdb_version_string=$($gdb_bin --version | head -n 1)
1107     # Extract last field in the version string
1108     gdb_version=${gdb_version_string##* }
1109     if version_ge $gdb_version 9.1; then
1110         gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1111     else
1112         gdb_bin=""
1113     fi
1114 fi
1115 
1116 ##########################################
1117 # big/little endian test
1118 cat > $TMPC << EOF
1119 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1120 # error LITTLE
1121 #endif
1122 int main(void) { return 0; }
1123 EOF
1124 
1125 if ! compile_prog ; then
1126   bigendian="no"
1127 else
1128   cat > $TMPC << EOF
1129 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1130 # error BIG
1131 #endif
1132 int main(void) { return 0; }
1133 EOF
1134 
1135   if ! compile_prog ; then
1136     bigendian="yes"
1137   else
1138     echo big/little test failed
1139     exit 1
1140   fi
1141 fi
1142 
1143 ##########################################
1144 # functions to probe cross compilers
1145 
1146 container="no"
1147 runc=""
1148 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1149     case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1150         *docker) container=docker ;;
1151         podman) container=podman ;;
1152         no) container=no ;;
1153     esac
1154     if test "$container" != "no"; then
1155         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1156         runc=$container
1157     fi
1158 fi
1159 
1160 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1161 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1162 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1163 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1164 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1165 : ${cross_prefix_armeb="$cross_prefix_arm"}
1166 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1167 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1168 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1169 : ${cross_prefix_i386="i686-linux-gnu-"}
1170 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1171 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1172 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1173 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1174 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1175 : ${cross_prefix_mips="mips-linux-gnu-"}
1176 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1177 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1178 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1179 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1180 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1181 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1182 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1183 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1184 : ${cross_prefix_tricore="tricore-"}
1185 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1186 
1187 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1188 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1189 : ${cross_cc_armeb="$cross_cc_arm"}
1190 : ${cross_cc_cflags_armeb="-mbig-endian"}
1191 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1192 : ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1193 : ${cross_cc_cflags_i386="-m32"}
1194 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1195 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1196 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1197 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1198 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1199 : ${cross_cc_sparc="$cross_cc_sparc64"}
1200 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1201 : ${cross_cc_cflags_x86_64="-m64 -mcx16"}
1202 
1203 compute_target_variable() {
1204   eval "$2="
1205   if eval test -n "\"\${cross_prefix_$1}\""; then
1206     if eval has "\"\${cross_prefix_$1}\$3\""; then
1207       eval "$2=\"\${cross_prefix_$1}\$3\""
1208     fi
1209   fi
1210 }
1211 
1212 have_target() {
1213   for i; do
1214     case " $target_list " in
1215       *" $i "*) return 0;;
1216       *) ;;
1217     esac
1218   done
1219   return 1
1220 }
1221 
1222 # probe_target_compiler TARGET
1223 #
1224 # Look for a compiler for the given target, either native or cross.
1225 # Set variables target_* if a compiler is found, and container_cross_*
1226 # if a Docker-based cross-compiler image is known for the target.
1227 # Set got_cross_cc to yes/no depending on whether a non-container-based
1228 # compiler was found.
1229 #
1230 # If TARGET is a user-mode emulation target, also set build_static to
1231 # "y" if static linking is possible.
1232 #
1233 probe_target_compiler() {
1234   # reset all output variables
1235   got_cross_cc=no
1236   container_image=
1237   container_hosts=
1238   container_cross_prefix=
1239   container_cross_cc=
1240   container_cross_ar=
1241   container_cross_as=
1242   container_cross_ld=
1243   container_cross_nm=
1244   container_cross_objcopy=
1245   container_cross_ranlib=
1246   container_cross_strip=
1247 
1248   target_arch=${1%%-*}
1249   case $target_arch in
1250     aarch64) container_hosts="x86_64 aarch64" ;;
1251     alpha) container_hosts=x86_64 ;;
1252     arm) container_hosts="x86_64 aarch64" ;;
1253     hexagon) container_hosts=x86_64 ;;
1254     hppa) container_hosts=x86_64 ;;
1255     i386) container_hosts=x86_64 ;;
1256     loongarch64) container_hosts=x86_64 ;;
1257     m68k) container_hosts=x86_64 ;;
1258     microblaze) container_hosts=x86_64 ;;
1259     mips64el) container_hosts=x86_64 ;;
1260     mips64) container_hosts=x86_64 ;;
1261     mipsel) container_hosts=x86_64 ;;
1262     mips) container_hosts=x86_64 ;;
1263     ppc) container_hosts=x86_64 ;;
1264     ppc64|ppc64le) container_hosts=x86_64 ;;
1265     riscv64) container_hosts=x86_64 ;;
1266     s390x) container_hosts=x86_64 ;;
1267     sh4) container_hosts=x86_64 ;;
1268     sparc64) container_hosts=x86_64 ;;
1269     tricore) container_hosts=x86_64 ;;
1270     x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1271     xtensa*) container_hosts=x86_64 ;;
1272   esac
1273 
1274   for host in $container_hosts; do
1275     test "$container" != no || continue
1276     test "$host" = "$cpu" || continue
1277     case $target_arch in
1278       # debian-all-test-cross architectures
1279 
1280       hppa|m68k|mips|riscv64|sparc64)
1281         container_image=debian-all-test-cross
1282         ;;
1283       mips64)
1284         container_image=debian-all-test-cross
1285         container_cross_prefix=mips64-linux-gnuabi64-
1286         ;;
1287       ppc|ppc64|ppc64le)
1288         container_image=debian-all-test-cross
1289         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1290         ;;
1291 
1292       # debian-legacy-test-cross architectures (need Debian 11)
1293       # - libc6.1-dev-alpha-cross: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054412
1294       # - sh4-linux-user: binaries don't run with bookworm compiler
1295 
1296       alpha|sh4)
1297         container_image=debian-legacy-test-cross
1298         ;;
1299 
1300       # architectures with individual containers
1301 
1302       aarch64)
1303         # We don't have any bigendian build tools so we only use this for AArch64
1304         container_image=debian-arm64-cross
1305         ;;
1306       arm)
1307         # We don't have any bigendian build tools so we only use this for ARM
1308         container_image=debian-armhf-cross
1309         container_cross_prefix=arm-linux-gnueabihf-
1310         ;;
1311       hexagon)
1312         container_cross_prefix=hexagon-unknown-linux-musl-
1313         container_cross_cc=${container_cross_prefix}clang
1314         ;;
1315       i386)
1316         container_image=debian-i686-cross
1317         container_cross_prefix=i686-linux-gnu-
1318         ;;
1319       loongarch64)
1320         container_image=debian-loongarch-cross
1321         container_cross_prefix=loongarch64-unknown-linux-gnu-
1322         ;;
1323       microblaze)
1324         container_cross_prefix=microblaze-linux-musl-
1325         ;;
1326       mips64el)
1327         container_image=debian-all-test-cross
1328         container_cross_prefix=mips64el-linux-gnuabi64-
1329         ;;
1330       tricore)
1331         container_image=debian-tricore-cross
1332         container_cross_prefix=tricore-
1333         ;;
1334       x86_64)
1335         container_image=debian-amd64-cross
1336         ;;
1337       xtensa*)
1338         container_image=debian-xtensa-cross
1339 
1340         # default to the dc232b cpu
1341         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1342         ;;
1343     esac
1344     # Debian and GNU architecture names usually match
1345     : ${container_image:=debian-$target_arch-cross}
1346     : ${container_cross_prefix:=$target_arch-linux-gnu-}
1347     : ${container_cross_cc:=${container_cross_prefix}gcc}
1348     : ${container_cross_ar:=${container_cross_prefix}ar}
1349     : ${container_cross_as:=${container_cross_prefix}as}
1350     : ${container_cross_ld:=${container_cross_prefix}ld}
1351     : ${container_cross_nm:=${container_cross_prefix}nm}
1352     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1353     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1354     : ${container_cross_strip:=${container_cross_prefix}strip}
1355   done
1356 
1357   try=cross
1358   # For softmmu/roms also look for a bi-endian or multilib-enabled host compiler
1359   if [ "${1%softmmu}" != "$1" ] || test "$target_arch" = "$cpu"; then
1360       case "$target_arch:$cpu" in
1361         aarch64_be:aarch64 | \
1362         armeb:arm | \
1363         i386:x86_64 | \
1364         mips*:mips64 | \
1365         ppc*:ppc64 | \
1366         sparc:sparc64 | \
1367         "$cpu:$cpu")
1368         try='native cross' ;;
1369       esac
1370   fi
1371   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1372   for thistry in $try; do
1373     case $thistry in
1374     native)
1375       target_cc=$cc
1376       target_ccas=$ccas
1377       target_ar=$ar
1378       target_as=$as
1379       target_ld=$ld
1380       target_nm=$nm
1381       target_objcopy=$objcopy
1382       target_ranlib=$ranlib
1383       target_strip=$strip
1384       ;;
1385     cross)
1386       target_cc=
1387       if eval test -n "\"\${cross_cc_$target_arch}\""; then
1388         if eval has "\"\${cross_cc_$target_arch}\""; then
1389           eval "target_cc=\"\${cross_cc_$target_arch}\""
1390         fi
1391       else
1392         compute_target_variable $target_arch target_cc gcc
1393       fi
1394       target_ccas=$target_cc
1395       compute_target_variable $target_arch target_ar ar
1396       compute_target_variable $target_arch target_as as
1397       compute_target_variable $target_arch target_ld ld
1398       compute_target_variable $target_arch target_nm nm
1399       compute_target_variable $target_arch target_objcopy objcopy
1400       compute_target_variable $target_arch target_ranlib ranlib
1401       compute_target_variable $target_arch target_strip strip
1402       ;;
1403     esac
1404 
1405     if test -n "$target_cc"; then
1406       case $target_arch in
1407         i386|x86_64)
1408           if $target_cc --version | grep -qi "clang"; then
1409             continue
1410           fi
1411           ;;
1412       esac
1413     elif test -n "$target_as" && test -n "$target_ld"; then
1414       # Special handling for assembler only targets
1415       case $target in
1416         tricore-softmmu)
1417           build_static=
1418           got_cross_cc=yes
1419           break
1420           ;;
1421         *)
1422           continue
1423           ;;
1424       esac
1425     else
1426       continue
1427     fi
1428 
1429     write_c_skeleton
1430     case $1 in
1431       *-softmmu)
1432         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1433           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1434           got_cross_cc=yes
1435           break
1436         fi
1437         ;;
1438       *)
1439         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1440           build_static=y
1441           got_cross_cc=yes
1442           break
1443         fi
1444         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1445           build_static=
1446           got_cross_cc=yes
1447           break
1448         fi
1449         ;;
1450     esac
1451   done
1452   if test $got_cross_cc != yes; then
1453     build_static=
1454     target_cc=
1455     target_ccas=
1456     target_ar=
1457     target_as=
1458     target_ld=
1459     target_nm=
1460     target_objcopy=
1461     target_ranlib=
1462     target_strip=
1463   fi
1464   test -n "$target_cc"
1465 }
1466 
1467 write_target_makefile() {
1468   echo "EXTRA_CFLAGS=$target_cflags"
1469   if test -z "$target_cc" && test -z "$target_as"; then
1470     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1471     echo "$1: docker-image-$container_image" >> Makefile.prereqs
1472     if test -n "$container_cross_cc"; then
1473       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1474       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1475     fi
1476     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1477     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1478     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1479     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1480     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1481     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1482     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1483   else
1484     if test -n "$target_cc"; then
1485       echo "CC=$target_cc"
1486       echo "CCAS=$target_ccas"
1487     fi
1488     if test -n "$target_ar"; then
1489       echo "AR=$target_ar"
1490     fi
1491     if test -n "$target_as"; then
1492       echo "AS=$target_as"
1493     fi
1494     if test -n "$target_ld"; then
1495       echo "LD=$target_ld"
1496     fi
1497     if test -n "$target_nm"; then
1498       echo "NM=$target_nm"
1499     fi
1500     if test -n "$target_objcopy"; then
1501       echo "OBJCOPY=$target_objcopy"
1502     fi
1503     if test -n "$target_ranlib"; then
1504       echo "RANLIB=$target_ranlib"
1505     fi
1506     if test -n "$target_strip"; then
1507       echo "STRIP=$target_strip"
1508     fi
1509   fi
1510 }
1511 
1512 #######################################
1513 # cross-compiled firmware targets
1514 
1515 # Set up build tree symlinks that point back into the source tree
1516 # (these can be both files and directories).
1517 # Caution: avoid adding files or directories here using wildcards. This
1518 # will result in problems later if a new file matching the wildcard is
1519 # added to the source tree -- nothing will cause configure to be rerun
1520 # so the build tree will be missing the link back to the new file, and
1521 # tests might fail. Prefer to keep the relevant files in their own
1522 # directory and symlink the directory instead.
1523 LINKS="Makefile"
1524 LINKS="$LINKS docs/config"
1525 LINKS="$LINKS pc-bios/optionrom/Makefile"
1526 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1527 LINKS="$LINKS pc-bios/vof/Makefile"
1528 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1529 LINKS="$LINKS tests/avocado tests/data"
1530 LINKS="$LINKS tests/qemu-iotests/check tests/qemu-iotests/Makefile"
1531 LINKS="$LINKS python"
1532 LINKS="$LINKS contrib/plugins/Makefile "
1533 for f in $LINKS ; do
1534     if [ -e "$source_path/$f" ]; then
1535         symlink "$source_path/$f" "$f"
1536     fi
1537 done
1538 
1539 # use included Linux headers for KVM architectures
1540 if test "$host_os" = "linux" && test -n "$linux_arch"; then
1541   symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1542 fi
1543 
1544 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1545 
1546 # Mac OS X ships with a broken assembler
1547 if have_target i386-softmmu x86_64-softmmu && \
1548         test "$host_os" != "darwin" && test "$host_os" != "sunos" && \
1549         test "$host_os" != "haiku" && \
1550         probe_target_compiler i386-softmmu; then
1551     subdirs="$subdirs pc-bios/optionrom"
1552     config_mak=pc-bios/optionrom/config.mak
1553     echo "# Automatically generated by configure - do not modify" > $config_mak
1554     echo "TOPSRC_DIR=$source_path" >> $config_mak
1555     write_target_makefile >> $config_mak
1556 fi
1557 
1558 if have_target ppc-softmmu ppc64-softmmu && \
1559         probe_target_compiler ppc-softmmu; then
1560     subdirs="$subdirs pc-bios/vof"
1561     config_mak=pc-bios/vof/config.mak
1562     echo "# Automatically generated by configure - do not modify" > $config_mak
1563     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1564     write_target_makefile >> $config_mak
1565 fi
1566 
1567 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1568 # (which is the lowest architecture level that Clang supports)
1569 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1570     GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1571   write_c_skeleton
1572   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1573   has_z900=$?
1574   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1575     if [ $has_z900 != 0 ]; then
1576       echo "WARNING: Your compiler does not support the z900!"
1577       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1578     fi
1579     subdirs="$subdirs pc-bios/s390-ccw"
1580     config_mak=pc-bios/s390-ccw/config-host.mak
1581     echo "# Automatically generated by configure - do not modify" > $config_mak
1582     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1583     echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1584     write_target_makefile >> $config_mak
1585   fi
1586 fi
1587 
1588 #######################################
1589 # generate config-host.mak
1590 
1591 config_host_mak="config-host.mak"
1592 
1593 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1594 echo >> $config_host_mak
1595 
1596 echo all: >> $config_host_mak
1597 
1598 echo "SRC_PATH=$source_path" >> $config_host_mak
1599 echo "TARGET_DIRS=$target_list" >> $config_host_mak
1600 echo "GDB=$gdb_bin" >> $config_host_mak
1601 if test "$container" != no; then
1602     echo "RUNC=$runc" >> $config_host_mak
1603 fi
1604 echo "SUBDIRS=$subdirs" >> $config_host_mak
1605 echo "PYTHON=$python" >> $config_host_mak
1606 echo "MKVENV_ENSUREGROUP=$mkvenv ensuregroup $mkvenv_online_flag" >> $config_host_mak
1607 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1608 echo "MESON=$meson" >> $config_host_mak
1609 echo "NINJA=$ninja" >> $config_host_mak
1610 echo "EXESUF=$EXESUF" >> $config_host_mak
1611 if test "$default_targets" = "yes"; then
1612   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1613 fi
1614 
1615 # contrib/plugins configuration
1616 echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1617 echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1618 echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1619 echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1620 echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1621 if test "$host_os" = windows; then
1622   echo "DLLTOOL=$dlltool" >> contrib/plugins/$config_host_mak
1623 fi
1624 if test "$host_os" = darwin; then
1625   echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1626 fi
1627 if test "$host_os" = windows; then
1628   echo "CONFIG_WIN32=y" >> contrib/plugins/$config_host_mak
1629 fi
1630 
1631 # tests/tcg configuration
1632 mkdir -p tests/tcg
1633 echo "# Automatically generated by configure - do not modify" > tests/tcg/$config_host_mak
1634 echo "SRC_PATH=$source_path" >> tests/tcg/$config_host_mak
1635 if test "$plugins" = "yes" ; then
1636     echo "CONFIG_PLUGIN=y" >> tests/tcg/$config_host_mak
1637 fi
1638 
1639 tcg_tests_targets=
1640 for target in $target_list; do
1641   arch=${target%%-*}
1642 
1643   case $target in
1644     xtensa*-linux-user)
1645       # the toolchain is not complete with headers, only build system tests
1646       continue
1647       ;;
1648     *-softmmu)
1649       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1650       qemu="qemu-system-$arch"
1651       ;;
1652     *-linux-user|*-bsd-user)
1653       qemu="qemu-$arch"
1654       ;;
1655   esac
1656 
1657   if probe_target_compiler $target || test -n "$container_image"; then
1658       test -n "$container_image" && build_static=y
1659       mkdir -p "tests/tcg/$target"
1660       config_target_mak=tests/tcg/$target/config-target.mak
1661       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1662       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1663       echo "TARGET_NAME=$arch" >> "$config_target_mak"
1664       echo "TARGET=$target" >> "$config_target_mak"
1665       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1666       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1667       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1668 
1669       # will GDB work with these binaries?
1670       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1671           echo "GDB=$gdb_bin" >> $config_target_mak
1672       fi
1673 
1674       if test "${gdb_arches#*aarch64}" != "$gdb_arches" && version_ge $gdb_version 15.1; then
1675           echo "GDB_HAS_MTE=y" >> $config_target_mak
1676       fi
1677 
1678       if test "${gdb_arches#*aarch64}" != "$gdb_arches" && version_ge $gdb_version 16.0; then
1679           # GDB has to support MTE in baremetal to allow debugging MTE in QEMU system mode
1680           echo "GDB_SUPPORTS_MTE_IN_BAREMETAL=y" >> $config_target_mak
1681       fi
1682 
1683       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1684       tcg_tests_targets="$tcg_tests_targets $target"
1685   fi
1686 done
1687 
1688 if test "$tcg" = "enabled"; then
1689     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $config_host_mak
1690 fi
1691 
1692 if test "$skip_meson" = no; then
1693   cross="config-meson.cross.new"
1694   meson_quote() {
1695     test $# = 0 && return
1696     echo "'$(echo $* | sed "s/ /','/g")'"
1697   }
1698 
1699   echo "# Automatically generated by configure - do not modify" > $cross
1700   echo "[properties]" >> $cross
1701 
1702   # unroll any custom device configs
1703   for a in $device_archs; do
1704       eval "c=\$devices_${a}"
1705       echo "${a}-softmmu = '$c'" >> $cross
1706   done
1707 
1708   echo "[built-in options]" >> $cross
1709   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1710   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1711   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1712   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1713   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1714 
1715   # Only enable by default for git builds and on select OSes
1716   echo "# environment defaults, can still be overridden on " >> $cross
1717   echo "# the command line" >> $cross
1718   if test -e "$source_path/.git" && \
1719       { test "$host_os" = linux || test "$host_os" = "windows"; }; then
1720       echo 'werror = true' >> $cross
1721   fi
1722   echo "[project options]" >> $cross
1723   if test "$SMBD" != ''; then
1724     echo "smbd = $(meson_quote "$SMBD")" >> $cross
1725   fi
1726   if test "${QEMU_GA_MANUFACTURER}" != ''; then
1727     echo "qemu_ga_manufacturer = $(meson_quote "${QEMU_GA_MANUFACTURER}")" >> $cross
1728   fi
1729   if test "${QEMU_GA_DISTRO}" != ''; then
1730     echo "qemu_ga_distro = $(meson_quote "${QEMU_GA_DISTRO}")" >> $cross
1731   fi
1732   if test "${QEMU_GA_VERSION}" != ''; then
1733     echo "qemu_ga_version = $(meson_quote "${QEMU_GA_VERSION}")" >> $cross
1734   fi
1735 
1736   echo >> $cross
1737   echo "[binaries]" >> $cross
1738   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1739   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1740   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1741   echo "ar = [$(meson_quote $ar)]" >> $cross
1742   echo "dlltool = [$(meson_quote $dlltool)]" >> $cross
1743   echo "nm = [$(meson_quote $nm)]" >> $cross
1744   echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1745   echo "pkg-config = [$(meson_quote $pkg_config)]" >> $cross
1746   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1747   if has $sdl2_config; then
1748     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1749   fi
1750   echo "strip = [$(meson_quote $strip)]" >> $cross
1751   echo "widl = [$(meson_quote $widl)]" >> $cross
1752   echo "windres = [$(meson_quote $windres)]" >> $cross
1753   echo "windmc = [$(meson_quote $windmc)]" >> $cross
1754   if test "$cross_compile" = "yes"; then
1755     echo "[host_machine]" >> $cross
1756     echo "system = '$host_os'" >> $cross
1757     case "$cpu" in
1758         i386)
1759             echo "cpu_family = 'x86'" >> $cross
1760             ;;
1761         *)
1762             echo "cpu_family = '$cpu'" >> $cross
1763             ;;
1764     esac
1765     echo "cpu = '$cpu'" >> $cross
1766     if test "$bigendian" = "yes" ; then
1767         echo "endian = 'big'" >> $cross
1768     else
1769         echo "endian = 'little'" >> $cross
1770     fi
1771 
1772     native="config-meson.native.new"
1773     echo "# Automatically generated by configure - do not modify" > $native
1774     echo "[binaries]" >> $native
1775     echo "c = [$(meson_quote $host_cc)]" >> $native
1776     mv $native config-meson.native
1777     meson_option_add --native-file
1778     meson_option_add config-meson.native
1779   fi
1780   mv $cross config-meson.cross
1781   meson_add_machine_file config-meson.cross
1782   if test -f "$source_path/configs/meson/$host_os.txt"; then
1783     meson_add_machine_file $source_path/configs/meson/$host_os.txt
1784   fi
1785 
1786   rm -rf meson-private meson-info meson-logs
1787 
1788   test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1789   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1790   test "$static" = yes && meson_option_add -Dprefer_static=true
1791   test "$pie" = no && meson_option_add -Db_pie=false
1792 
1793   # QEMU options
1794   test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
1795   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1796   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1797   test "$plugins" = yes && meson_option_add "-Dplugins=true"
1798   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1799   run_meson() {
1800     NINJA=$ninja $meson setup "$@" "$PWD" "$source_path"
1801   }
1802   eval run_meson $meson_options
1803   if test "$?" -ne 0 ; then
1804       error_exit "meson setup failed"
1805   fi
1806   echo "$meson" > build.ninja.stamp
1807 else
1808   if test -f meson-private/cmd_line.txt; then
1809     # Adjust old command line options that were removed
1810     # sed -i is not portable
1811     perl -i -ne '
1812       /^sphinx_build/ && next;
1813       print;' meson-private/cmd_line.txt
1814   fi
1815 fi
1816 
1817 # Save the configure command line for later reuse.
1818 cat <<EOD >config.status
1819 #!/bin/sh
1820 # Generated by configure.
1821 # Run this file to recreate the current configuration.
1822 # Compiler output produced by configure, useful for debugging
1823 # configure, is in config.log if it exists.
1824 EOD
1825 
1826 preserve_env() {
1827     envname=$1
1828 
1829     eval envval=\$$envname
1830 
1831     if test -n "$envval"
1832     then
1833 	echo "$envname='$envval'" >> config.status
1834 	echo "export $envname" >> config.status
1835     else
1836 	echo "unset $envname" >> config.status
1837     fi
1838 }
1839 
1840 # Preserve various env variables that influence what
1841 # features/build target configure will detect
1842 preserve_env AR
1843 preserve_env AS
1844 preserve_env CC
1845 preserve_env CFLAGS
1846 preserve_env CXX
1847 preserve_env CXXFLAGS
1848 preserve_env DLLTOOL
1849 preserve_env LD
1850 preserve_env LDFLAGS
1851 preserve_env LD_LIBRARY_PATH
1852 preserve_env NM
1853 preserve_env OBJCFLAGS
1854 preserve_env OBJCOPY
1855 preserve_env PATH
1856 preserve_env PKG_CONFIG
1857 preserve_env PKG_CONFIG_LIBDIR
1858 preserve_env PKG_CONFIG_PATH
1859 preserve_env PYTHON
1860 preserve_env QEMU_GA_MANUFACTURER
1861 preserve_env QEMU_GA_DISTRO
1862 preserve_env QEMU_GA_VERSION
1863 preserve_env SDL2_CONFIG
1864 preserve_env SMBD
1865 preserve_env STRIP
1866 preserve_env WIDL
1867 preserve_env WINDRES
1868 preserve_env WINDMC
1869 
1870 printf "exec" >>config.status
1871 for i in "$0" "$@"; do
1872   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1873 done
1874 echo ' "$@"' >>config.status
1875 chmod +x config.status
1876 
1877 rm -r "$TMPDIR1"
1878