xref: /openbmc/qemu/configure (revision b54f310129609e58badb98c064a5532efd5fa6b2)
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 # Now we have our CPU_CFLAGS we can check if we are targeting a 32 or
520 # 64 bit host.
521 
522 check_64bit_host() {
523 cat > $TMPC <<EOF
524 #if __SIZEOF_POINTER__ != 8
525 #error not 64 bit system
526 #endif
527 int main(void) { return 0; }
528 EOF
529   compile_object "$1"
530 }
531 
532 if check_64bit_host "$CPU_CFLAGS"; then
533     host_bits=64
534 else
535     host_bits=32
536 fi
537 
538 if test -n "$host_arch" && {
539     ! test -d "$source_path/linux-user/include/host/$host_arch" ||
540     ! test -d "$source_path/common-user/host/$host_arch"; }; then
541     error_exit "linux-user/include/host/$host_arch does not exist." \
542        "This is a bug in the configure script, please report it."
543 fi
544 if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
545     error_exit "linux-headers/asm-$linux_arch does not exist." \
546        "This is a bug in the configure script, please report it."
547 fi
548 
549 check_py_version() {
550     # We require python >= 3.8.
551     # NB: a True python conditional creates a non-zero return code (Failure)
552     "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
553 }
554 
555 first_python=
556 if test -z "${PYTHON}"; then
557     # A bare 'python' is traditionally python 2.x, but some distros
558     # have it as python 3.x, so check in both places.
559     for binary in python3 python python3.12 python3.11 \
560                           python3.10 python3.9 python3.8; do
561         if has "$binary"; then
562             python=$(command -v "$binary")
563             if check_py_version "$python"; then
564                 # This one is good.
565                 first_python=
566                 break
567             else
568                 first_python=$python
569             fi
570         fi
571     done
572 else
573     # Same as above, but only check the environment variable.
574     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
575     python=$(command -v "$PYTHON")
576     if check_py_version "$python"; then
577         # This one is good.
578         first_python=
579     else
580         first_python=$first_python
581     fi
582 fi
583 
584 # Check for ancillary tools used in testing
585 genisoimage=
586 for binary in genisoimage mkisofs
587 do
588     if has $binary
589     then
590         genisoimage=$(command -v "$binary")
591         break
592     fi
593 done
594 
595 if test "$host_os" = "windows" ; then
596   EXESUF=".exe"
597 fi
598 
599 meson_option_build_array() {
600   printf '['
601   (if test "$host_os" = windows; then
602     IFS=\;
603   else
604     IFS=:
605   fi
606   for e in $1; do
607     printf '"""'
608     # backslash escape any '\' and '"' characters
609     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
610     printf '""",'
611   done)
612   printf ']\n'
613 }
614 
615 . "$source_path/scripts/meson-buildoptions.sh"
616 
617 meson_options=
618 meson_option_add() {
619   local arg
620   for arg; do
621     meson_options="$meson_options $(quote_sh "$arg")"
622   done
623 }
624 meson_option_parse() {
625   meson_options="$meson_options $(_meson_option_parse "$@")"
626   if test $? -eq 1; then
627     echo "ERROR: unknown option $1"
628     echo "Try '$0 --help' for more information"
629     exit 1
630   fi
631 }
632 has_meson_option() {
633     test "${meson_options#*"$1"}" != "$meson_options"
634 }
635 
636 meson_add_machine_file() {
637   if test "$cross_compile" = "yes"; then
638     meson_option_add --cross-file "$1"
639   else
640     meson_option_add --native-file "$1"
641   fi
642 }
643 
644 for opt do
645   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
646   case "$opt" in
647   --help|-h) show_help=yes
648   ;;
649   --version|-V) exec cat "$source_path/VERSION"
650   ;;
651   --cross-prefix=*)
652   ;;
653   --cc=*)
654   ;;
655   --host-cc=*) host_cc="$optarg"
656   ;;
657   --cxx=*)
658   ;;
659   --objcc=*)
660   ;;
661   --make=*)
662   ;;
663   --install=*)
664   ;;
665   --python=*) python="$optarg"
666   ;;
667   --skip-meson) skip_meson=yes
668   ;;
669   --ninja=*) ninja="$optarg"
670   ;;
671   --extra-cflags=*)
672   ;;
673   --extra-cxxflags=*)
674   ;;
675   --extra-objcflags=*)
676   ;;
677   --extra-ldflags=*)
678   ;;
679   --cross-cc-*)
680   ;;
681   --cross-prefix-*)
682   ;;
683   --enable-docs) docs=enabled
684   ;;
685   --disable-docs) docs=disabled
686   ;;
687   --cpu=*)
688   ;;
689   --target-list=*) target_list="$optarg"
690                    if test "$target_list_exclude"; then
691                        error_exit "Can't mix --target-list with --target-list-exclude"
692                    fi
693   ;;
694   --target-list-exclude=*) target_list_exclude="$optarg"
695                    if test "$target_list"; then
696                        error_exit "Can't mix --target-list-exclude with --target-list"
697                    fi
698   ;;
699   --with-default-devices) meson_option_add -Ddefault_devices=true
700   ;;
701   --without-default-devices) meson_option_add -Ddefault_devices=false
702   ;;
703   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
704   ;;
705   --with-devices-*) device_arch=${opt#--with-devices-};
706                     device_arch=${device_arch%%=*}
707                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
708                     if test -f "$cf"; then
709                         device_archs="$device_archs $device_arch"
710                         eval "devices_${device_arch}=\$optarg"
711                     else
712                         error_exit "File $cf does not exist"
713                     fi
714   ;;
715   --without-default-features) # processed above
716   ;;
717   --static) static="yes"
718   ;;
719   --host=*|--build=*|\
720   --disable-dependency-tracking|\
721   --sbindir=*|--sharedstatedir=*|\
722   --oldincludedir=*|--datarootdir=*|--infodir=*|\
723   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
724     # These switches are silently ignored, for compatibility with
725     # autoconf-generated configure scripts. This allows QEMU's
726     # configure to be used by RPM and similar macros that set
727     # lots of directory switches by default.
728   ;;
729   --enable-debug)
730       # Enable debugging options that aren't excessively noisy
731       meson_option_parse --enable-debug-tcg ""
732       meson_option_parse --enable-debug-graph-lock ""
733       meson_option_parse --enable-debug-mutex ""
734       meson_option_add -Doptimization=0
735       default_cflags='-O0 -g'
736   ;;
737   --disable-tcg) tcg="disabled"
738   ;;
739   --enable-tcg) tcg="enabled"
740   ;;
741   --disable-system) system="no"
742   ;;
743   --enable-system) system="yes"
744   ;;
745   --disable-user)
746       linux_user="no" ;
747       bsd_user="no" ;
748   ;;
749   --enable-user) ;;
750   --disable-linux-user) linux_user="no"
751   ;;
752   --enable-linux-user) linux_user="yes"
753   ;;
754   --disable-bsd-user) bsd_user="no"
755   ;;
756   --enable-bsd-user) bsd_user="yes"
757   ;;
758   --enable-pie) pie="yes"
759   ;;
760   --disable-pie) pie="no"
761   ;;
762   --enable-cfi) cfi=true
763   ;;
764   --disable-cfi) cfi=false
765   ;;
766   --disable-download) download="disabled"; git_submodules_action=validate;
767   ;;
768   --enable-download) download="enabled"; git_submodules_action=update;
769   ;;
770   --enable-plugins) plugins="yes"
771   ;;
772   --disable-plugins) plugins="no"
773   ;;
774   --enable-containers) use_containers="yes"
775   ;;
776   --disable-containers) use_containers="no"
777   ;;
778   --container-engine=*) container_engine="$optarg"
779   ;;
780   --gdb=*) gdb_bin="$optarg"
781   ;;
782   # everything else has the same name in configure and meson
783   --*) meson_option_parse "$opt" "$optarg"
784   ;;
785   # Pass through -Dxxxx options to meson
786   -D*) meson_option_add "$opt"
787   ;;
788   esac
789 done
790 
791 if ! test -e "$source_path/.git"
792 then
793     git_submodules_action="validate"
794 fi
795 
796 if ! test -f "$source_path/subprojects/keycodemapdb/README" \
797     && test "$download" = disabled
798 then
799     echo
800     echo "ERROR: missing subprojects"
801     echo
802     if test -e "$source_path/.git"; then
803         echo "--disable-download specified but subprojects were not"
804         echo 'checked out.  Please invoke "meson subprojects download"'
805         echo "before configuring QEMU, or remove --disable-download"
806         echo "from the command line."
807     else
808         echo "This is not a GIT checkout but subproject content appears to"
809         echo "be missing. Do not use 'git archive' or GitHub download links"
810         echo "to acquire QEMU source archives. Non-GIT builds are only"
811         echo "supported with source archives linked from:"
812         echo
813         echo "  https://www.qemu.org/download/#source"
814         echo
815         echo "Developers working with GIT can use scripts/archive-source.sh"
816         echo "if they need to create valid source archives."
817     fi
818     echo
819     exit 1
820 fi
821 
822 default_target_list=""
823 mak_wilds=""
824 
825 if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
826     if [ "$linux_user" != no ]; then
827         if [ "$host_os" = linux ]; then
828             linux_user=yes
829         elif [ "$linux_user" = yes ]; then
830             error_exit "linux-user not supported on this architecture"
831         fi
832         if [ "$linux_user" = "yes" ]; then
833             mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
834         fi
835     fi
836     if [ "$bsd_user" != no ]; then
837         if [ "$bsd_user" = "" ]; then
838             test $host_os = freebsd && bsd_user=yes
839         fi
840         if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$host_os" ]; then
841             error_exit "bsd-user not supported on this host OS"
842         fi
843         if [ "$bsd_user" = "yes" ]; then
844             mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
845         fi
846     fi
847 else
848     if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
849         error_exit "user mode emulation not supported on this architecture"
850     fi
851 fi
852 if [ "$system" = "yes" ]; then
853     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
854 fi
855 
856 for config in $mak_wilds; do
857     target="$(basename "$config" .mak)"
858     if echo "$target_list_exclude" | grep -vq "$target"; then
859         default_target_list="${default_target_list} $target"
860     fi
861 done
862 
863 if test x"$show_help" = x"yes" ; then
864 cat << EOF
865 
866 Usage: configure [options]
867 Options: [defaults in brackets after descriptions]
868 
869 Standard options:
870   --help                   print this message
871   --target-list=LIST       set target list (default: build all)
872 $(echo Available targets: $default_target_list | \
873   fold -s -w 53 | sed -e 's/^/                           /')
874   --target-list-exclude=LIST exclude a set of targets from the default target-list
875 
876 Advanced options (experts only):
877   -Dmesonoptname=val       passthrough option to meson unmodified
878   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
879   --cc=CC                  use C compiler CC [$cc]
880   --host-cc=CC             when cross compiling, use C compiler CC for code run
881                            at build time [$host_cc]
882   --cxx=CXX                use C++ compiler CXX [$cxx]
883   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
884   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
885   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
886   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
887   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
888   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
889   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
890   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
891   --python=PYTHON          use specified python [$python]
892   --ninja=NINJA            use specified ninja [$ninja]
893   --static                 enable static build [$static]
894   --without-default-features default all --enable-* options to "disabled"
895   --without-default-devices  do not include any device that is not needed to
896                            start the emulator (only use if you are including
897                            desired devices in configs/devices/)
898   --with-devices-ARCH=NAME override default configs/devices
899   --enable-debug           enable common debug build options
900   --cpu=CPU                Build for host CPU [$cpu]
901   --disable-containers     don't use containers for cross-building
902   --container-engine=TYPE  which container engine to use [$container_engine]
903   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
904 EOF
905   meson_options_help
906 cat << EOF
907   system          all system emulation targets
908   user            supported user emulation targets
909   linux-user      all linux usermode emulation targets
910   bsd-user        all BSD usermode emulation targets
911   pie             Position Independent Executables
912 
913 NOTE: The object files are built at the place where configure is launched
914 EOF
915 exit 0
916 fi
917 
918 # Now that we are sure that the user did not only want to print the --help
919 # information, we should double-check that the C compiler really works:
920 write_c_skeleton
921 if ! compile_object ; then
922     error_exit "C compiler \"$cc\" either does not exist or does not work."
923 fi
924 
925 # Remove old dependency files to make sure that they get properly regenerated
926 rm -f ./*/config-devices.mak.d
927 
928 if test -z "$python"
929 then
930     # If first_python is set, there was a binary somewhere even though
931     # it was not suitable.  Use it for the error message.
932     if test -n "$first_python"; then
933         error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
934             "Use --python=/path/to/python to specify a supported Python."
935     else
936         error_exit "Python not found. Use --python=/path/to/python"
937     fi
938 fi
939 
940 if ! check_py_version "$python"; then
941   error_exit "Cannot use '$python', Python >= 3.8 is required." \
942              "Use --python=/path/to/python to specify a supported Python." \
943              "Maybe try:" \
944              "  openSUSE Leap 15.3+: zypper install python39" \
945              "  CentOS 8: dnf install python38"
946 fi
947 
948 # Resolve PATH
949 python="$(command -v "$python")"
950 
951 # Create a Python virtual environment using our configured python.
952 # The stdout of this script will be the location of a symlink that
953 # points to the configured Python.
954 # Entry point scripts for pip, meson, and sphinx are generated if those
955 # packages are present.
956 
957 # Defaults assumed for now:
958 # - venv is cleared if it exists already;
959 # - venv is allowed to use system packages;
960 # - all setup can be performed offline;
961 # - missing packages may be fetched from PyPI,
962 #   unless --disable-download is passed.
963 # - pip is not installed into the venv when possible,
964 #   but ensurepip is called as a fallback when necessary.
965 
966 echo "python determined to be '$python'"
967 echo "python version: $($python --version)"
968 
969 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
970 if test "$?" -ne 0 ; then
971     error_exit "python venv creation failed"
972 fi
973 
974 # Suppress writing compiled files
975 python="$python -B"
976 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
977 
978 # Finish preparing the virtual environment using vendored .whl files
979 
980 $mkvenv ensuregroup --dir "${source_path}/python/wheels" \
981      ${source_path}/pythondeps.toml meson || exit 1
982 
983 # At this point, we expect Meson to be installed and available.
984 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
985 # We ignore PATH completely here: we want to use the venv's Meson
986 # *exclusively*.
987 
988 meson="$(cd pyvenv/bin; pwd)/meson"
989 
990 # Conditionally ensure Sphinx is installed.
991 
992 mkvenv_online_flag=""
993 if test "$download" = "enabled" ; then
994     mkvenv_online_flag=" --online"
995 fi
996 
997 if test "$docs" != "disabled" ; then
998     if ! $mkvenv ensuregroup \
999          $(test "$docs" = "enabled" && echo "$mkvenv_online_flag") \
1000          ${source_path}/pythondeps.toml docs;
1001     then
1002         if test "$docs" = "enabled" ; then
1003             exit 1
1004         fi
1005         echo "Sphinx not found/usable, disabling docs."
1006         docs=disabled
1007     else
1008         docs=enabled
1009     fi
1010 fi
1011 
1012 # Probe for ninja
1013 
1014 if test -z "$ninja"; then
1015     for c in ninja ninja-build samu; do
1016         if has $c; then
1017             ninja=$(command -v "$c")
1018             break
1019         fi
1020     done
1021     if test -z "$ninja"; then
1022       error_exit "Cannot find Ninja"
1023     fi
1024 fi
1025 
1026 if test "$host_os" = "bogus"; then
1027     # Now that we know that we're not printing the help and that
1028     # the compiler works (so the results of the check_defines we used
1029     # to identify the OS are reliable), if we didn't recognize the
1030     # host OS we should stop now.
1031     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1032 fi
1033 
1034 # test for any invalid configuration combinations
1035 if test "$host_os" = "windows" && ! has "$dlltool"; then
1036   if test "$plugins" = "yes"; then
1037     error_exit "TCG plugins requires dlltool to build on Windows platforms"
1038   fi
1039   plugins="no"
1040 fi
1041 if test "$tcg" = "disabled" ; then
1042   if test "$plugins" = "yes"; then
1043     error_exit "Can't enable plugins on non-TCG builds"
1044   fi
1045   plugins="no"
1046 fi
1047 if test "$static" = "yes" ; then
1048   if test "$plugins" = "yes"; then
1049     error_exit "static and plugins are mutually incompatible"
1050   fi
1051   plugins="no"
1052 fi
1053 if test "$plugins" != "no" && test $host_bits -eq 64; then
1054     if has_meson_option "-Dtcg_interpreter=true"; then
1055         plugins="no"
1056     else
1057         plugins=yes
1058         subdirs="$subdirs contrib/plugins"
1059     fi
1060 fi
1061 
1062 cat > $TMPC << EOF
1063 
1064 #ifdef __linux__
1065 #  define THREAD __thread
1066 #else
1067 #  define THREAD
1068 #endif
1069 static THREAD int tls_var;
1070 int main(void) { return tls_var; }
1071 EOF
1072 
1073 if test "$host_os" = windows || test "$host_os" = haiku; then
1074   if test "$pie" = "yes"; then
1075     error_exit "PIE not available due to missing OS support"
1076   fi
1077   pie=no
1078 fi
1079 
1080 if test "$pie" != "no"; then
1081   if test "$static" = "yes"; then
1082     pie_ldflags=-static-pie
1083   else
1084     pie_ldflags=-pie
1085   fi
1086   if compile_prog "-Werror -fPIE -DPIE" "$pie_ldflags"; then
1087     pie="yes"
1088   elif test "$pie" = "yes"; then
1089     error_exit "-static-pie not available due to missing toolchain support"
1090   else
1091     echo "Disabling PIE due to missing toolchain support"
1092     pie="no"
1093   fi
1094 fi
1095 
1096 ##########################################
1097 
1098 if test -z "${target_list+xxx}" ; then
1099     default_targets=yes
1100     for target in $default_target_list; do
1101         target_list="$target_list $target"
1102     done
1103     target_list="${target_list# }"
1104 else
1105     default_targets=no
1106     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1107     for target in $target_list; do
1108         # Check that we recognised the target name; this allows a more
1109         # friendly error message than if we let it fall through.
1110         case " $default_target_list " in
1111             *" $target "*)
1112                 ;;
1113             *)
1114                 error_exit "Unknown target name '$target'"
1115                 ;;
1116         esac
1117     done
1118 fi
1119 
1120 if test "$tcg" = "auto"; then
1121   if test -z "$target_list"; then
1122     tcg="disabled"
1123   else
1124     tcg="enabled"
1125   fi
1126 fi
1127 
1128 #########################################
1129 # gdb test
1130 
1131 if test -n "$gdb_bin"; then
1132     gdb_version_string=$($gdb_bin --version | head -n 1)
1133     # Extract last field in the version string
1134     gdb_version=${gdb_version_string##* }
1135     if version_ge $gdb_version 9.1; then
1136         gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1137     else
1138         gdb_bin=""
1139     fi
1140 fi
1141 
1142 ##########################################
1143 # big/little endian test
1144 cat > $TMPC << EOF
1145 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1146 # error LITTLE
1147 #endif
1148 int main(void) { return 0; }
1149 EOF
1150 
1151 if ! compile_prog ; then
1152   bigendian="no"
1153 else
1154   cat > $TMPC << EOF
1155 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1156 # error BIG
1157 #endif
1158 int main(void) { return 0; }
1159 EOF
1160 
1161   if ! compile_prog ; then
1162     bigendian="yes"
1163   else
1164     echo big/little test failed
1165     exit 1
1166   fi
1167 fi
1168 
1169 ##########################################
1170 # functions to probe cross compilers
1171 
1172 container="no"
1173 runc=""
1174 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1175     case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1176         *docker) container=docker ;;
1177         podman) container=podman ;;
1178         no) container=no ;;
1179     esac
1180     if test "$container" != "no"; then
1181         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1182         runc=$container
1183     fi
1184 fi
1185 
1186 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1187 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1188 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1189 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1190 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1191 : ${cross_prefix_armeb="$cross_prefix_arm"}
1192 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1193 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1194 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1195 : ${cross_prefix_i386="i686-linux-gnu-"}
1196 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1197 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1198 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1199 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1200 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1201 : ${cross_prefix_mips="mips-linux-gnu-"}
1202 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1203 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1204 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1205 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1206 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1207 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1208 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1209 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1210 : ${cross_prefix_tricore="tricore-"}
1211 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1212 
1213 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1214 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1215 : ${cross_cc_armeb="$cross_cc_arm"}
1216 : ${cross_cc_cflags_armeb="-mbig-endian"}
1217 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1218 : ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1219 : ${cross_cc_cflags_i386="-m32"}
1220 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1221 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1222 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1223 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1224 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1225 : ${cross_cc_sparc="$cross_cc_sparc64"}
1226 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1227 : ${cross_cc_cflags_x86_64="-m64 -mcx16"}
1228 
1229 compute_target_variable() {
1230   eval "$2="
1231   if eval test -n "\"\${cross_prefix_$1}\""; then
1232     if eval has "\"\${cross_prefix_$1}\$3\""; then
1233       eval "$2=\"\${cross_prefix_$1}\$3\""
1234     fi
1235   fi
1236 }
1237 
1238 have_target() {
1239   for i; do
1240     case " $target_list " in
1241       *" $i "*) return 0;;
1242       *) ;;
1243     esac
1244   done
1245   return 1
1246 }
1247 
1248 # probe_target_compiler TARGET
1249 #
1250 # Look for a compiler for the given target, either native or cross.
1251 # Set variables target_* if a compiler is found, and container_cross_*
1252 # if a Docker-based cross-compiler image is known for the target.
1253 # Set got_cross_cc to yes/no depending on whether a non-container-based
1254 # compiler was found.
1255 #
1256 # If TARGET is a user-mode emulation target, also set build_static to
1257 # "y" if static linking is possible.
1258 #
1259 probe_target_compiler() {
1260   # reset all output variables
1261   got_cross_cc=no
1262   container_image=
1263   container_hosts=
1264   container_cross_prefix=
1265   container_cross_cc=
1266   container_cross_ar=
1267   container_cross_as=
1268   container_cross_ld=
1269   container_cross_nm=
1270   container_cross_objcopy=
1271   container_cross_ranlib=
1272   container_cross_strip=
1273 
1274   target_arch=${1%%-*}
1275   case $target_arch in
1276     aarch64) container_hosts="x86_64 aarch64" ;;
1277     alpha) container_hosts=x86_64 ;;
1278     arm) container_hosts="x86_64 aarch64" ;;
1279     hexagon) container_hosts=x86_64 ;;
1280     hppa) container_hosts=x86_64 ;;
1281     i386) container_hosts=x86_64 ;;
1282     loongarch64) container_hosts=x86_64 ;;
1283     m68k) container_hosts=x86_64 ;;
1284     microblaze) container_hosts=x86_64 ;;
1285     mips64el) container_hosts=x86_64 ;;
1286     mips64) container_hosts=x86_64 ;;
1287     mipsel) container_hosts=x86_64 ;;
1288     mips) container_hosts=x86_64 ;;
1289     ppc) container_hosts=x86_64 ;;
1290     ppc64|ppc64le) container_hosts=x86_64 ;;
1291     riscv64) container_hosts=x86_64 ;;
1292     s390x) container_hosts=x86_64 ;;
1293     sh4) container_hosts=x86_64 ;;
1294     sparc64) container_hosts=x86_64 ;;
1295     tricore) container_hosts=x86_64 ;;
1296     x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1297     xtensa*) container_hosts=x86_64 ;;
1298   esac
1299 
1300   for host in $container_hosts; do
1301     test "$container" != no || continue
1302     test "$host" = "$cpu" || continue
1303     case $target_arch in
1304       # debian-all-test-cross architectures
1305 
1306       hppa|m68k|mips|riscv64|sparc64)
1307         container_image=debian-all-test-cross
1308         ;;
1309       mips64)
1310         container_image=debian-all-test-cross
1311         container_cross_prefix=mips64-linux-gnuabi64-
1312         ;;
1313       ppc|ppc64|ppc64le)
1314         container_image=debian-all-test-cross
1315         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1316         ;;
1317 
1318       # debian-legacy-test-cross architectures (need Debian 11)
1319       # - libc6.1-dev-alpha-cross: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054412
1320       # - sh4-linux-user: binaries don't run with bookworm compiler
1321 
1322       alpha|sh4)
1323         container_image=debian-legacy-test-cross
1324         ;;
1325 
1326       # architectures with individual containers
1327 
1328       aarch64)
1329         # We don't have any bigendian build tools so we only use this for AArch64
1330         container_image=debian-arm64-cross
1331         ;;
1332       arm)
1333         # We don't have any bigendian build tools so we only use this for ARM
1334         container_image=debian-armhf-cross
1335         container_cross_prefix=arm-linux-gnueabihf-
1336         ;;
1337       hexagon)
1338         container_cross_prefix=hexagon-unknown-linux-musl-
1339         container_cross_cc=${container_cross_prefix}clang
1340         ;;
1341       i386)
1342         container_image=debian-i686-cross
1343         container_cross_prefix=i686-linux-gnu-
1344         ;;
1345       loongarch64)
1346         container_image=debian-loongarch-cross
1347         container_cross_prefix=loongarch64-unknown-linux-gnu-
1348         ;;
1349       microblaze)
1350         container_cross_prefix=microblaze-linux-musl-
1351         ;;
1352       mips64el)
1353         container_image=debian-all-test-cross
1354         container_cross_prefix=mips64el-linux-gnuabi64-
1355         ;;
1356       tricore)
1357         container_image=debian-tricore-cross
1358         container_cross_prefix=tricore-
1359         ;;
1360       x86_64)
1361         container_image=debian-amd64-cross
1362         ;;
1363       xtensa*)
1364         container_image=debian-xtensa-cross
1365 
1366         # default to the dc232b cpu
1367         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1368         ;;
1369     esac
1370     # Debian and GNU architecture names usually match
1371     : ${container_image:=debian-$target_arch-cross}
1372     : ${container_cross_prefix:=$target_arch-linux-gnu-}
1373     : ${container_cross_cc:=${container_cross_prefix}gcc}
1374     : ${container_cross_ar:=${container_cross_prefix}ar}
1375     : ${container_cross_as:=${container_cross_prefix}as}
1376     : ${container_cross_ld:=${container_cross_prefix}ld}
1377     : ${container_cross_nm:=${container_cross_prefix}nm}
1378     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1379     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1380     : ${container_cross_strip:=${container_cross_prefix}strip}
1381   done
1382 
1383   try=cross
1384   # For softmmu/roms also look for a bi-endian or multilib-enabled host compiler
1385   if [ "${1%softmmu}" != "$1" ] || test "$target_arch" = "$cpu"; then
1386       case "$target_arch:$cpu" in
1387         aarch64_be:aarch64 | \
1388         armeb:arm | \
1389         i386:x86_64 | \
1390         mips*:mips64 | \
1391         ppc*:ppc64 | \
1392         sparc:sparc64 | \
1393         "$cpu:$cpu")
1394         try='native cross' ;;
1395       esac
1396   fi
1397   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1398   for thistry in $try; do
1399     case $thistry in
1400     native)
1401       target_cc=$cc
1402       target_ccas=$ccas
1403       target_ar=$ar
1404       target_as=$as
1405       target_ld=$ld
1406       target_nm=$nm
1407       target_objcopy=$objcopy
1408       target_ranlib=$ranlib
1409       target_strip=$strip
1410       ;;
1411     cross)
1412       target_cc=
1413       if eval test -n "\"\${cross_cc_$target_arch}\""; then
1414         if eval has "\"\${cross_cc_$target_arch}\""; then
1415           eval "target_cc=\"\${cross_cc_$target_arch}\""
1416         fi
1417       else
1418         compute_target_variable $target_arch target_cc gcc
1419       fi
1420       target_ccas=$target_cc
1421       compute_target_variable $target_arch target_ar ar
1422       compute_target_variable $target_arch target_as as
1423       compute_target_variable $target_arch target_ld ld
1424       compute_target_variable $target_arch target_nm nm
1425       compute_target_variable $target_arch target_objcopy objcopy
1426       compute_target_variable $target_arch target_ranlib ranlib
1427       compute_target_variable $target_arch target_strip strip
1428       ;;
1429     esac
1430 
1431     if test -n "$target_cc"; then
1432       case $target_arch in
1433         i386|x86_64)
1434           if $target_cc --version | grep -qi "clang"; then
1435             continue
1436           fi
1437           ;;
1438       esac
1439     elif test -n "$target_as" && test -n "$target_ld"; then
1440       # Special handling for assembler only targets
1441       case $target in
1442         tricore-softmmu)
1443           build_static=
1444           got_cross_cc=yes
1445           break
1446           ;;
1447         *)
1448           continue
1449           ;;
1450       esac
1451     else
1452       continue
1453     fi
1454 
1455     write_c_skeleton
1456     case $1 in
1457       *-softmmu)
1458         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1459           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1460           got_cross_cc=yes
1461           break
1462         fi
1463         ;;
1464       *)
1465         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1466           build_static=y
1467           got_cross_cc=yes
1468           break
1469         fi
1470         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1471           build_static=
1472           got_cross_cc=yes
1473           break
1474         fi
1475         ;;
1476     esac
1477   done
1478   if test $got_cross_cc != yes; then
1479     build_static=
1480     target_cc=
1481     target_ccas=
1482     target_ar=
1483     target_as=
1484     target_ld=
1485     target_nm=
1486     target_objcopy=
1487     target_ranlib=
1488     target_strip=
1489   fi
1490   test -n "$target_cc"
1491 }
1492 
1493 write_target_makefile() {
1494   echo "EXTRA_CFLAGS=$target_cflags"
1495   if test -z "$target_cc" && test -z "$target_as"; then
1496     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1497     echo "$1: docker-image-$container_image" >> Makefile.prereqs
1498     if test -n "$container_cross_cc"; then
1499       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1500       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1501     fi
1502     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1503     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1504     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1505     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1506     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1507     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1508     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1509   else
1510     if test -n "$target_cc"; then
1511       echo "CC=$target_cc"
1512       echo "CCAS=$target_ccas"
1513     fi
1514     if test -n "$target_ar"; then
1515       echo "AR=$target_ar"
1516     fi
1517     if test -n "$target_as"; then
1518       echo "AS=$target_as"
1519     fi
1520     if test -n "$target_ld"; then
1521       echo "LD=$target_ld"
1522     fi
1523     if test -n "$target_nm"; then
1524       echo "NM=$target_nm"
1525     fi
1526     if test -n "$target_objcopy"; then
1527       echo "OBJCOPY=$target_objcopy"
1528     fi
1529     if test -n "$target_ranlib"; then
1530       echo "RANLIB=$target_ranlib"
1531     fi
1532     if test -n "$target_strip"; then
1533       echo "STRIP=$target_strip"
1534     fi
1535   fi
1536 }
1537 
1538 #######################################
1539 # cross-compiled firmware targets
1540 
1541 # Set up build tree symlinks that point back into the source tree
1542 # (these can be both files and directories).
1543 # Caution: avoid adding files or directories here using wildcards. This
1544 # will result in problems later if a new file matching the wildcard is
1545 # added to the source tree -- nothing will cause configure to be rerun
1546 # so the build tree will be missing the link back to the new file, and
1547 # tests might fail. Prefer to keep the relevant files in their own
1548 # directory and symlink the directory instead.
1549 LINKS="Makefile"
1550 LINKS="$LINKS docs/config"
1551 LINKS="$LINKS pc-bios/optionrom/Makefile"
1552 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1553 LINKS="$LINKS pc-bios/vof/Makefile"
1554 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1555 LINKS="$LINKS tests/avocado tests/data"
1556 LINKS="$LINKS tests/qemu-iotests/check tests/qemu-iotests/Makefile"
1557 LINKS="$LINKS python"
1558 LINKS="$LINKS contrib/plugins/Makefile "
1559 for f in $LINKS ; do
1560     if [ -e "$source_path/$f" ]; then
1561         symlink "$source_path/$f" "$f"
1562     fi
1563 done
1564 
1565 # use included Linux headers for KVM architectures
1566 if test "$host_os" = "linux" && test -n "$linux_arch"; then
1567   symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1568 fi
1569 
1570 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1571 
1572 # Mac OS X ships with a broken assembler
1573 if have_target i386-softmmu x86_64-softmmu && \
1574         test "$host_os" != "darwin" && test "$host_os" != "sunos" && \
1575         test "$host_os" != "haiku" && \
1576         probe_target_compiler i386-softmmu; then
1577     subdirs="$subdirs pc-bios/optionrom"
1578     config_mak=pc-bios/optionrom/config.mak
1579     echo "# Automatically generated by configure - do not modify" > $config_mak
1580     echo "TOPSRC_DIR=$source_path" >> $config_mak
1581     write_target_makefile >> $config_mak
1582 fi
1583 
1584 if have_target ppc-softmmu ppc64-softmmu && \
1585         probe_target_compiler ppc-softmmu; then
1586     subdirs="$subdirs pc-bios/vof"
1587     config_mak=pc-bios/vof/config.mak
1588     echo "# Automatically generated by configure - do not modify" > $config_mak
1589     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1590     write_target_makefile >> $config_mak
1591 fi
1592 
1593 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1594 # (which is the lowest architecture level that Clang supports)
1595 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1596     GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1597   write_c_skeleton
1598   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1599   has_z900=$?
1600   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1601     if [ $has_z900 != 0 ]; then
1602       echo "WARNING: Your compiler does not support the z900!"
1603       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1604     fi
1605     subdirs="$subdirs pc-bios/s390-ccw"
1606     config_mak=pc-bios/s390-ccw/config-host.mak
1607     echo "# Automatically generated by configure - do not modify" > $config_mak
1608     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1609     echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1610     write_target_makefile >> $config_mak
1611   fi
1612 fi
1613 
1614 #######################################
1615 # generate config-host.mak
1616 
1617 config_host_mak="config-host.mak"
1618 
1619 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1620 echo >> $config_host_mak
1621 
1622 echo all: >> $config_host_mak
1623 
1624 echo "SRC_PATH=$source_path" >> $config_host_mak
1625 echo "TARGET_DIRS=$target_list" >> $config_host_mak
1626 echo "GDB=$gdb_bin" >> $config_host_mak
1627 if test "$container" != no; then
1628     echo "RUNC=$runc" >> $config_host_mak
1629 fi
1630 echo "SUBDIRS=$subdirs" >> $config_host_mak
1631 echo "PYTHON=$python" >> $config_host_mak
1632 echo "MKVENV_ENSUREGROUP=$mkvenv ensuregroup $mkvenv_online_flag" >> $config_host_mak
1633 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1634 echo "MESON=$meson" >> $config_host_mak
1635 echo "NINJA=$ninja" >> $config_host_mak
1636 echo "EXESUF=$EXESUF" >> $config_host_mak
1637 if test "$default_targets" = "yes"; then
1638   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1639 fi
1640 
1641 # contrib/plugins configuration
1642 echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1643 echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1644 echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1645 echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1646 echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1647 if test "$host_os" = windows; then
1648   echo "DLLTOOL=$dlltool" >> contrib/plugins/$config_host_mak
1649 fi
1650 if test "$host_os" = darwin; then
1651   echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1652 fi
1653 if test "$host_os" = windows; then
1654   echo "CONFIG_WIN32=y" >> contrib/plugins/$config_host_mak
1655 fi
1656 
1657 # tests/tcg configuration
1658 mkdir -p tests/tcg
1659 echo "# Automatically generated by configure - do not modify" > tests/tcg/$config_host_mak
1660 echo "SRC_PATH=$source_path" >> tests/tcg/$config_host_mak
1661 if test "$plugins" = "yes" ; then
1662     echo "CONFIG_PLUGIN=y" >> tests/tcg/$config_host_mak
1663 fi
1664 
1665 tcg_tests_targets=
1666 for target in $target_list; do
1667   arch=${target%%-*}
1668 
1669   case $target in
1670     xtensa*-linux-user)
1671       # the toolchain is not complete with headers, only build system tests
1672       continue
1673       ;;
1674     *-softmmu)
1675       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1676       qemu="qemu-system-$arch"
1677       ;;
1678     *-linux-user|*-bsd-user)
1679       qemu="qemu-$arch"
1680       ;;
1681   esac
1682 
1683   if probe_target_compiler $target || test -n "$container_image"; then
1684       test -n "$container_image" && build_static=y
1685       mkdir -p "tests/tcg/$target"
1686       config_target_mak=tests/tcg/$target/config-target.mak
1687       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1688       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1689       echo "TARGET_NAME=$arch" >> "$config_target_mak"
1690       echo "TARGET=$target" >> "$config_target_mak"
1691       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1692       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1693       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1694 
1695       # will GDB work with these binaries?
1696       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1697           echo "GDB=$gdb_bin" >> $config_target_mak
1698       fi
1699 
1700       if test "${gdb_arches#*aarch64}" != "$gdb_arches" && version_ge $gdb_version 15.1; then
1701           echo "GDB_HAS_MTE=y" >> $config_target_mak
1702       fi
1703 
1704       if test "${gdb_arches#*aarch64}" != "$gdb_arches" && version_ge $gdb_version 16.0; then
1705           # GDB has to support MTE in baremetal to allow debugging MTE in QEMU system mode
1706           echo "GDB_SUPPORTS_MTE_IN_BAREMETAL=y" >> $config_target_mak
1707       fi
1708 
1709       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1710       tcg_tests_targets="$tcg_tests_targets $target"
1711   fi
1712 done
1713 
1714 if test "$tcg" = "enabled"; then
1715     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $config_host_mak
1716 fi
1717 
1718 if test "$skip_meson" = no; then
1719   cross="config-meson.cross.new"
1720   meson_quote() {
1721     test $# = 0 && return
1722     echo "'$(echo $* | sed "s/ /','/g")'"
1723   }
1724 
1725   echo "# Automatically generated by configure - do not modify" > $cross
1726   echo "[properties]" >> $cross
1727 
1728   # unroll any custom device configs
1729   for a in $device_archs; do
1730       eval "c=\$devices_${a}"
1731       echo "${a}-softmmu = '$c'" >> $cross
1732   done
1733 
1734   echo "[built-in options]" >> $cross
1735   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1736   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1737   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1738   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1739   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1740 
1741   # Only enable by default for git builds and on select OSes
1742   echo "# environment defaults, can still be overridden on " >> $cross
1743   echo "# the command line" >> $cross
1744   if test -e "$source_path/.git" && \
1745       { test "$host_os" = linux || test "$host_os" = "windows"; }; then
1746       echo 'werror = true' >> $cross
1747   fi
1748   echo "[project options]" >> $cross
1749   if test "$SMBD" != ''; then
1750     echo "smbd = $(meson_quote "$SMBD")" >> $cross
1751   fi
1752   if test "${QEMU_GA_MANUFACTURER}" != ''; then
1753     echo "qemu_ga_manufacturer = $(meson_quote "${QEMU_GA_MANUFACTURER}")" >> $cross
1754   fi
1755   if test "${QEMU_GA_DISTRO}" != ''; then
1756     echo "qemu_ga_distro = $(meson_quote "${QEMU_GA_DISTRO}")" >> $cross
1757   fi
1758   if test "${QEMU_GA_VERSION}" != ''; then
1759     echo "qemu_ga_version = $(meson_quote "${QEMU_GA_VERSION}")" >> $cross
1760   fi
1761 
1762   echo >> $cross
1763   echo "[binaries]" >> $cross
1764   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1765   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1766   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1767   echo "ar = [$(meson_quote $ar)]" >> $cross
1768   echo "dlltool = [$(meson_quote $dlltool)]" >> $cross
1769   echo "nm = [$(meson_quote $nm)]" >> $cross
1770   echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1771   echo "pkg-config = [$(meson_quote $pkg_config)]" >> $cross
1772   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1773   if has $sdl2_config; then
1774     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1775   fi
1776   echo "strip = [$(meson_quote $strip)]" >> $cross
1777   echo "widl = [$(meson_quote $widl)]" >> $cross
1778   echo "windres = [$(meson_quote $windres)]" >> $cross
1779   echo "windmc = [$(meson_quote $windmc)]" >> $cross
1780   if test "$cross_compile" = "yes"; then
1781     echo "[host_machine]" >> $cross
1782     echo "system = '$host_os'" >> $cross
1783     case "$cpu" in
1784         i386)
1785             echo "cpu_family = 'x86'" >> $cross
1786             ;;
1787         *)
1788             echo "cpu_family = '$cpu'" >> $cross
1789             ;;
1790     esac
1791     echo "cpu = '$cpu'" >> $cross
1792     if test "$bigendian" = "yes" ; then
1793         echo "endian = 'big'" >> $cross
1794     else
1795         echo "endian = 'little'" >> $cross
1796     fi
1797 
1798     native="config-meson.native.new"
1799     echo "# Automatically generated by configure - do not modify" > $native
1800     echo "[binaries]" >> $native
1801     echo "c = [$(meson_quote $host_cc)]" >> $native
1802     mv $native config-meson.native
1803     meson_option_add --native-file
1804     meson_option_add config-meson.native
1805   fi
1806   mv $cross config-meson.cross
1807   meson_add_machine_file config-meson.cross
1808   if test -f "$source_path/configs/meson/$host_os.txt"; then
1809     meson_add_machine_file $source_path/configs/meson/$host_os.txt
1810   fi
1811 
1812   rm -rf meson-private meson-info meson-logs
1813 
1814   test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1815   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1816   test "$static" = yes && meson_option_add -Dprefer_static=true
1817   test "$pie" = no && meson_option_add -Db_pie=false
1818 
1819   # QEMU options
1820   test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
1821   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1822   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1823   test "$plugins" = yes && meson_option_add "-Dplugins=true"
1824   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1825   run_meson() {
1826     NINJA=$ninja $meson setup "$@" "$PWD" "$source_path"
1827   }
1828   eval run_meson $meson_options
1829   if test "$?" -ne 0 ; then
1830       error_exit "meson setup failed"
1831   fi
1832   echo "$meson" > build.ninja.stamp
1833 else
1834   if test -f meson-private/cmd_line.txt; then
1835     # Adjust old command line options that were removed
1836     # sed -i is not portable
1837     perl -i -ne '
1838       /^sphinx_build/ && next;
1839       print;' meson-private/cmd_line.txt
1840   fi
1841 fi
1842 
1843 # Save the configure command line for later reuse.
1844 cat <<EOD >config.status
1845 #!/bin/sh
1846 # Generated by configure.
1847 # Run this file to recreate the current configuration.
1848 # Compiler output produced by configure, useful for debugging
1849 # configure, is in config.log if it exists.
1850 EOD
1851 
1852 preserve_env() {
1853     envname=$1
1854 
1855     eval envval=\$$envname
1856 
1857     if test -n "$envval"
1858     then
1859 	echo "$envname='$envval'" >> config.status
1860 	echo "export $envname" >> config.status
1861     else
1862 	echo "unset $envname" >> config.status
1863     fi
1864 }
1865 
1866 # Preserve various env variables that influence what
1867 # features/build target configure will detect
1868 preserve_env AR
1869 preserve_env AS
1870 preserve_env CC
1871 preserve_env CFLAGS
1872 preserve_env CXX
1873 preserve_env CXXFLAGS
1874 preserve_env DLLTOOL
1875 preserve_env LD
1876 preserve_env LDFLAGS
1877 preserve_env LD_LIBRARY_PATH
1878 preserve_env NM
1879 preserve_env OBJCFLAGS
1880 preserve_env OBJCOPY
1881 preserve_env PATH
1882 preserve_env PKG_CONFIG
1883 preserve_env PKG_CONFIG_LIBDIR
1884 preserve_env PKG_CONFIG_PATH
1885 preserve_env PYTHON
1886 preserve_env QEMU_GA_MANUFACTURER
1887 preserve_env QEMU_GA_DISTRO
1888 preserve_env QEMU_GA_VERSION
1889 preserve_env SDL2_CONFIG
1890 preserve_env SMBD
1891 preserve_env STRIP
1892 preserve_env WIDL
1893 preserve_env WINDRES
1894 preserve_env WINDMC
1895 
1896 printf "exec" >>config.status
1897 for i in "$0" "$@"; do
1898   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1899 done
1900 echo ' "$@"' >>config.status
1901 chmod +x config.status
1902 
1903 rm -r "$TMPDIR1"
1904