xref: /openbmc/qemu/configure (revision 55abfc1f) 
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.
8unset 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!
11export CCACHE_RECACHE=yes
12
13# make source path absolute
14source_path=$(cd "$(dirname -- "$0")"; pwd)
15
16if test "$PWD" = "$source_path"
17then
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
44build:
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
55GNUmakefile: ;
56
57EOF
58    cd build
59    exec "$source_path/configure" "$@"
60fi
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.)
67TMPDIR1="config-temp"
68rm -rf "${TMPDIR1}"
69if ! mkdir -p "${TMPDIR1}"; then
70    echo "ERROR: failed to create temporary directory"
71    exit 1
72fi
73
74TMPB="qemu-conf"
75TMPC="${TMPDIR1}/${TMPB}.c"
76TMPO="${TMPDIR1}/${TMPB}.o"
77TMPE="${TMPDIR1}/${TMPB}.exe"
78
79rm -f config.log
80
81# Print a helpful header at the top of config.log
82echo "# QEMU configure log $(date)" >> config.log
83printf "# Configured with:" >> config.log
84# repeat the invocation to log and stdout for CI
85invoke=$(printf " '%s'" "$0" "$@")
86test -n "$GITLAB_CI" && echo "configuring with: $invoke"
87{ echo "$invoke"; echo; echo "#"; } >> config.log
88
89quote_sh() {
90    printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
91}
92
93error_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
104do_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 "
111funcs: ${FUNCNAME[*]}
112lines: ${BASH_LINENO[*]}"
113  '; fi
114  echo $compiler "$@" >> config.log
115  $compiler "$@" >> config.log 2>&1 || return $?
116}
117
118do_cc() {
119    do_compiler "$cc" $CPU_CFLAGS "$@"
120}
121
122compile_object() {
123  local_cflags="$1"
124  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
125}
126
127compile_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".
135symlink() {
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)
143has() {
144    type "$1" >/dev/null 2>&1
145}
146
147version_ge () {
148    local_ver1=$(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
166if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
167then
168  error_exit "main directory cannot contain spaces nor colons"
169fi
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
175container_engine="auto"
176cpu=""
177cross_compile="no"
178cross_prefix=""
179host_cc="cc"
180EXTRA_CFLAGS=""
181EXTRA_CXXFLAGS=""
182EXTRA_OBJCFLAGS=""
183EXTRA_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.
196default_feature=""
197
198for 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
239done
240
241default_cflags='-O2 -g'
242git_submodules_action="update"
243docs="auto"
244EXESUF=""
245system="yes"
246linux_user=""
247bsd_user=""
248plugins="$default_feature"
249subdirs=""
250ninja=""
251python=
252download="enabled"
253skip_meson=no
254use_containers="yes"
255gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
256gdb_arches=""
257
258# Don't accept a target_list environment variable.
259unset target_list
260unset 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
265tcg="auto"
266cfi="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.
271pie=""
272static="no"
273
274# Preferred compiler:
275#  ${CC} (if set)
276#  ${cross_prefix}gcc (if cross-prefix specified)
277#  system compiler
278if test -z "${CC}${cross_prefix}"; then
279  cc="cc"
280else
281  cc="${CC-${cross_prefix}gcc}"
282fi
283
284if test -z "${CXX}${cross_prefix}"; then
285  cxx="c++"
286else
287  cxx="${CXX-${cross_prefix}g++}"
288fi
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# $cc
295if test -z "${objcc}${cross_prefix}"; then
296  if has clang; then
297    objcc=clang
298  else
299    objcc="$cc"
300  fi
301else
302  objcc="${objcc-${cross_prefix}clang}"
303fi
304
305ar="${AR-${cross_prefix}ar}"
306as="${AS-${cross_prefix}as}"
307ccas="${CCAS-$cc}"
308dlltool="${DLLTOOL-${cross_prefix}dlltool}"
309objcopy="${OBJCOPY-${cross_prefix}objcopy}"
310ld="${LD-${cross_prefix}ld}"
311ranlib="${RANLIB-${cross_prefix}ranlib}"
312nm="${NM-${cross_prefix}nm}"
313strip="${STRIP-${cross_prefix}strip}"
314widl="${WIDL-${cross_prefix}widl}"
315windres="${WINDRES-${cross_prefix}windres}"
316windmc="${WINDMC-${cross_prefix}windmc}"
317pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
318sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
319
320check_define() {
321cat > $TMPC <<EOF
322#if !defined($1)
323#error $1 not defined
324#endif
325int main(void) { return 0; }
326EOF
327  compile_object
328}
329
330write_c_skeleton() {
331    cat > $TMPC <<EOF
332int main(void) { return 0; }
333EOF
334}
335
336if check_define __linux__ ; then
337  targetos=linux
338elif check_define _WIN32 ; then
339  targetos=windows
340elif check_define __OpenBSD__ ; then
341  targetos=openbsd
342elif check_define __sun__ ; then
343  targetos=sunos
344elif check_define __HAIKU__ ; then
345  targetos=haiku
346elif check_define __FreeBSD__ ; then
347  targetos=freebsd
348elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
349  targetos=gnu/kfreebsd
350elif check_define __DragonFly__ ; then
351  targetos=dragonfly
352elif check_define __NetBSD__; then
353  targetos=netbsd
354elif check_define __APPLE__; then
355  targetos=darwin
356else
357  # This is a fatal error, but don't report it yet, because we
358  # might be going to just print the --help text, or it might
359  # be the result of a missing compiler.
360  targetos=bogus
361fi
362
363if test ! -z "$cpu" ; then
364  # command line argument
365  :
366elif check_define __i386__ ; then
367  cpu="i386"
368elif check_define __x86_64__ ; then
369  if check_define __ILP32__ ; then
370    cpu="x32"
371  else
372    cpu="x86_64"
373  fi
374elif check_define __sparc__ ; then
375  if check_define __arch64__ ; then
376    cpu="sparc64"
377  else
378    cpu="sparc"
379  fi
380elif 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
390elif check_define __mips__ ; then
391  cpu="mips"
392elif check_define __s390__ ; then
393  if check_define __s390x__ ; then
394    cpu="s390x"
395  else
396    cpu="s390"
397  fi
398elif check_define __riscv ; then
399  if check_define _LP64 ; then
400    cpu="riscv64"
401  else
402    cpu="riscv32"
403  fi
404elif check_define __arm__ ; then
405  cpu="arm"
406elif check_define __aarch64__ ; then
407  cpu="aarch64"
408elif check_define __loongarch64 ; then
409  cpu="loongarch64"
410else
411  # Using uname is really broken, but it is just a fallback for architectures
412  # that are going to use TCI anyway
413  cpu=$(uname -m)
414  echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
415fi
416
417# Normalise host CPU name to the values used by Meson cross files and in source
418# directories, and set multilib cflags.  The canonicalization isn't really
419# necessary, because the architectures that we check for should not hit the
420# 'uname -m' case, but better safe than sorry in case --cpu= is used.
421#
422# Note that this case should only have supported host CPUs, not guests.
423# Please keep it sorted and synchronized with meson.build's host_arch.
424host_arch=
425linux_arch=
426case "$cpu" in
427  aarch64)
428    host_arch=aarch64
429    linux_arch=arm64
430    ;;
431
432  armv*b|armv*l|arm)
433    cpu=arm
434    host_arch=arm
435    linux_arch=arm
436    ;;
437
438  i386|i486|i586|i686)
439    cpu="i386"
440    host_arch=i386
441    linux_arch=x86
442    CPU_CFLAGS="-m32"
443    ;;
444
445  loongarch*)
446    cpu=loongarch64
447    host_arch=loongarch64
448    ;;
449
450  mips64*)
451    cpu=mips64
452    host_arch=mips
453    linux_arch=mips
454    ;;
455  mips*)
456    cpu=mips
457    host_arch=mips
458    linux_arch=mips
459    ;;
460
461  ppc)
462    host_arch=ppc
463    linux_arch=powerpc
464    CPU_CFLAGS="-m32"
465    ;;
466  ppc64)
467    host_arch=ppc64
468    linux_arch=powerpc
469    CPU_CFLAGS="-m64 -mbig-endian"
470    ;;
471  ppc64le)
472    cpu=ppc64
473    host_arch=ppc64
474    linux_arch=powerpc
475    CPU_CFLAGS="-m64 -mlittle-endian"
476    ;;
477
478  riscv32 | riscv64)
479    host_arch=riscv
480    linux_arch=riscv
481    ;;
482
483  s390)
484    linux_arch=s390
485    CPU_CFLAGS="-m31"
486    ;;
487  s390x)
488    host_arch=s390x
489    linux_arch=s390
490    CPU_CFLAGS="-m64"
491    ;;
492
493  sparc|sun4[cdmuv])
494    cpu=sparc
495    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
496    ;;
497  sparc64)
498    host_arch=sparc64
499    CPU_CFLAGS="-m64 -mcpu=ultrasparc"
500    ;;
501
502  x32)
503    cpu="x86_64"
504    host_arch=x86_64
505    linux_arch=x86
506    CPU_CFLAGS="-mx32"
507    ;;
508  x86_64|amd64)
509    cpu="x86_64"
510    host_arch=x86_64
511    linux_arch=x86
512    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
513    # If we truly care, we should simply detect this case at
514    # runtime and generate the fallback to serial emulation.
515    CPU_CFLAGS="-m64 -mcx16"
516    ;;
517esac
518
519if test -n "$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/$host_arch does not exist." \
523       "This is a bug in the configure script, please report it."
524fi
525if test -n "$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."
528fi
529
530check_py_version() {
531    # We require python >= 3.8.
532    # NB: a True python conditional creates a non-zero return code (Failure)
533    "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
534}
535
536first_python=
537if test -z "${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=$python
550            fi
551        fi
552    done
553else
554    # Same as above, but only check the environment variable.
555    has "${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
563fi
564
565# Check for ancillary tools used in testing
566genisoimage=
567for binary in genisoimage mkisofs
568do
569    if has $binary
570    then
571        genisoimage=$(command -v "$binary")
572        break
573    fi
574done
575
576if test "$targetos" = "windows" ; then
577  EXESUF=".exe"
578fi
579
580meson_option_build_array() {
581  printf '['
582  (if test "$targetos" = 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. "$source_path/scripts/meson-buildoptions.sh"
597
598meson_options=
599meson_option_add() {
600  local arg
601  for arg; do
602    meson_options="$meson_options $(quote_sh "$arg")"
603  done
604}
605meson_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 '$0 --help' for more information"
610    exit 1
611  fi
612}
613
614meson_add_machine_file() {
615  if test "$cross_compile" = "yes"; then
616    meson_option_add --cross-file "$1"
617  else
618    meson_option_add --native-file "$1"
619  fi
620}
621
622for opt do
623  optarg=$(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" "$optarg"
762  ;;
763  # Pass through -Dxxxx options to meson
764  -D*) meson_options="$meson_options $opt"
765  ;;
766  esac
767done
768
769if ! test -e "$source_path/.git"
770then
771    git_submodules_action="validate"
772fi
773
774if ! test -f "$source_path/subprojects/keycodemapdb/README" \
775    && test "$download" = disabled
776then
777    echo
778    echo "ERROR: missing subprojects"
779    echo
780    if test -e "$source_path/.git"; then
781        echo "--disable-download specified but subprojects were not"
782        echo 'checked out.  Please invoke "meson subprojects download"'
783        echo "before configuring QEMU, or remove --disable-download"
784        echo "from the command line."
785    else
786        echo "This is not a GIT checkout but subproject content appears to"
787        echo "be missing. Do not use 'git archive' or GitHub download links"
788        echo "to acquire QEMU source archives. Non-GIT builds are only"
789        echo "supported with source archives linked from:"
790        echo
791        echo "  https://www.qemu.org/download/#source"
792        echo
793        echo "Developers working with GIT can use scripts/archive-source.sh"
794        echo "if they need to create valid source archives."
795    fi
796    echo
797    exit 1
798fi
799
800default_target_list=""
801mak_wilds=""
802
803if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
804    if [ "$linux_user" != no ]; then
805        if [ "$targetos" = 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 $targetos = freebsd && bsd_user=yes
817        fi
818        if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; 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} $source_path/configs/targets/*-bsd-user.mak"
823        fi
824    fi
825else
826    if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
827        error_exit "user mode emulation not supported on this architecture"
828    fi
829fi
830if [ "$system" = "yes" ]; then
831    mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
832fi
833
834for 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} $target"
838    fi
839done
840
841if test x"$show_help" = x"yes" ; then
842cat << EOF
843
844Usage: configure [options]
845Options: [defaults in brackets after descriptions]
846
847Standard options:
848  --help                   print this message
849  --target-list=LIST       set target list (default: build all)
850$(echo Available targets: $default_target_list | \
851  fold -s -w 53 | sed -e 's/^/                           /')
852  --target-list-exclude=LIST exclude a set of targets from the default target-list
853
854Advanced options (experts only):
855  -Dmesonoptname=val       passthrough option to meson unmodified
856  --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$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]
882EOF
883  meson_options_help
884cat << 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
891NOTE: The object files are built at the place where configure is launched
892EOF
893exit 0
894fi
895
896# Remove old dependency files to make sure that they get properly regenerated
897rm -f ./*/config-devices.mak.d
898
899if test -z "$python"
900then
901    # If first_python is set, there was a binary somewhere even though
902    # it was not suitable.  Use it for the error message.
903    if test -n "$first_python"; then
904        error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
905            "Use --python=/path/to/python to specify a supported Python."
906    else
907        error_exit "Python not found. Use --python=/path/to/python"
908    fi
909fi
910
911if ! check_py_version "$python"; then
912  error_exit "Cannot use '$python', Python >= 3.8 is required." \
913             "Use --python=/path/to/python to specify a supported Python." \
914             "Maybe try:" \
915             "  openSUSE Leap 15.3+: zypper install python39" \
916             "  CentOS 8: dnf install python38"
917fi
918
919# Resolve PATH
920python="$(command -v "$python")"
921
922# Create a Python virtual environment using our configured python.
923# The stdout of this script will be the location of a symlink that
924# points to the configured Python.
925# Entry point scripts for pip, meson, and sphinx are generated if those
926# packages are present.
927
928# Defaults assumed for now:
929# - venv is cleared if it exists already;
930# - venv is allowed to use system packages;
931# - all setup can be performed offline;
932# - missing packages may be fetched from PyPI,
933#   unless --disable-download is passed.
934# - pip is not installed into the venv when possible,
935#   but ensurepip is called as a fallback when necessary.
936
937echo "python determined to be '$python'"
938echo "python version: $($python --version)"
939
940python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
941if test "$?" -ne 0 ; then
942    error_exit "python venv creation failed"
943fi
944
945# Suppress writing compiled files
946python="$python -B"
947mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
948
949# Finish preparing the virtual environment using vendored .whl files
950
951if $python -c 'import sys; sys.exit(sys.version_info >= (3,11))'; then
952    $mkvenv ensure --dir "${source_path}/python/wheels" \
953        'tomli>=1.2.0' || exit 1
954fi
955$mkvenv ensuregroup --dir "${source_path}/python/wheels" \
956     ${source_path}/pythondeps.toml meson || exit 1
957
958# At this point, we expect Meson to be installed and available.
959# We expect mkvenv or pip to have created pyvenv/bin/meson for us.
960# We ignore PATH completely here: we want to use the venv's Meson
961# *exclusively*.
962
963meson="$(cd pyvenv/bin; pwd)/meson"
964
965# Conditionally ensure Sphinx is installed.
966
967mkvenv_online_flag=""
968if test "$download" = "enabled" ; then
969    mkvenv_online_flag=" --online"
970fi
971
972if test "$docs" != "disabled" ; then
973    if ! $mkvenv ensuregroup \
974         $(test "$docs" = "enabled" && echo "$mkvenv_online_flag") \
975         ${source_path}/pythondeps.toml docs;
976    then
977        if test "$docs" = "enabled" ; then
978            exit 1
979        fi
980        echo "Sphinx not found/usable, disabling docs."
981        docs=disabled
982    else
983        docs=enabled
984    fi
985fi
986
987# Probe for ninja
988
989if test -z "$ninja"; then
990    for c in ninja ninja-build samu; do
991        if has $c; then
992            ninja=$(command -v "$c")
993            break
994        fi
995    done
996    if test -z "$ninja"; then
997      error_exit "Cannot find Ninja"
998    fi
999fi
1000
1001if test "$targetos" = "bogus"; then
1002    # Now that we know that we're not printing the help and that
1003    # the compiler works (so the results of the check_defines we used
1004    # to identify the OS are reliable), if we didn't recognize the
1005    # host OS we should stop now.
1006    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1007fi
1008
1009# test for any invalid configuration combinations
1010if test "$targetos" = "windows" && ! has "$dlltool"; then
1011  if test "$plugins" = "yes"; then
1012    error_exit "TCG plugins requires dlltool to build on Windows platforms"
1013  fi
1014  plugins="no"
1015fi
1016if test "$tcg" = "disabled" ; then
1017  if test "$plugins" = "yes"; then
1018    error_exit "Can't enable plugins on non-TCG builds"
1019  fi
1020  plugins="no"
1021fi
1022if test "$static" = "yes" ; then
1023  if test "$plugins" = "yes"; then
1024    error_exit "static and plugins are mutually incompatible"
1025  fi
1026  plugins="no"
1027fi
1028if test "$plugins" != "no"; then
1029  plugins=yes
1030  subdirs="$subdirs contrib/plugins"
1031fi
1032
1033cat > $TMPC << EOF
1034
1035#ifdef __linux__
1036#  define THREAD __thread
1037#else
1038#  define THREAD
1039#endif
1040static THREAD int tls_var;
1041int main(void) { return tls_var; }
1042EOF
1043
1044if test "$targetos" = windows || test "$targetos" = haiku; then
1045  if test "$pie" = "yes"; then
1046    error_exit "PIE not available due to missing OS support"
1047  fi
1048  pie=no
1049fi
1050
1051if test "$pie" != "no"; then
1052  if test "$static" = "yes"; then
1053    pie_ldflags=-static-pie
1054  else
1055    pie_ldflags=-pie
1056  fi
1057  if compile_prog "-Werror -fPIE -DPIE" "$pie_ldflags"; then
1058    pie="yes"
1059  elif test "$pie" = "yes"; then
1060    error_exit "-static-pie not available due to missing toolchain support"
1061  else
1062    echo "Disabling PIE due to missing toolchain support"
1063    pie="no"
1064  fi
1065fi
1066
1067##########################################
1068
1069if test -z "${target_list+xxx}" ; then
1070    default_targets=yes
1071    for target in $default_target_list; do
1072        target_list="$target_list $target"
1073    done
1074    target_list="${target_list# }"
1075else
1076    default_targets=no
1077    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1078    for target in $target_list; do
1079        # Check that we recognised the target name; this allows a more
1080        # friendly error message than if we let it fall through.
1081        case " $default_target_list " in
1082            *" $target "*)
1083                ;;
1084            *)
1085                error_exit "Unknown target name '$target'"
1086                ;;
1087        esac
1088    done
1089fi
1090
1091if test "$tcg" = "auto"; then
1092  if test -z "$target_list"; then
1093    tcg="disabled"
1094  else
1095    tcg="enabled"
1096  fi
1097fi
1098
1099#########################################
1100# gdb test
1101
1102if test -n "$gdb_bin"; then
1103    gdb_version=$($gdb_bin --version | head -n 1)
1104    if version_ge ${gdb_version##* } 9.1; then
1105        gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1106    else
1107        gdb_bin=""
1108    fi
1109fi
1110
1111##########################################
1112# big/little endian test
1113cat > $TMPC << EOF
1114#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1115# error LITTLE
1116#endif
1117int main(void) { return 0; }
1118EOF
1119
1120if ! compile_prog ; then
1121  bigendian="no"
1122else
1123  cat > $TMPC << EOF
1124#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1125# error BIG
1126#endif
1127int main(void) { return 0; }
1128EOF
1129
1130  if ! compile_prog ; then
1131    bigendian="yes"
1132  else
1133    echo big/little test failed
1134    exit 1
1135  fi
1136fi
1137
1138##########################################
1139# functions to probe cross compilers
1140
1141container="no"
1142runc=""
1143if test $use_containers = "yes" && (has "docker" || has "podman"); then
1144    case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1145        *docker) container=docker ;;
1146        podman) container=podman ;;
1147        no) container=no ;;
1148    esac
1149    if test "$container" != "no"; then
1150        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1151        runc=$container
1152    fi
1153fi
1154
1155# cross compilers defaults, can be overridden with --cross-cc-ARCH
1156: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1157: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1158: ${cross_prefix_alpha="alpha-linux-gnu-"}
1159: ${cross_prefix_arm="arm-linux-gnueabihf-"}
1160: ${cross_prefix_armeb="$cross_prefix_arm"}
1161: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1162: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1163: ${cross_prefix_hppa="hppa-linux-gnu-"}
1164: ${cross_prefix_i386="i686-linux-gnu-"}
1165: ${cross_prefix_m68k="m68k-linux-gnu-"}
1166: ${cross_prefix_microblaze="microblaze-linux-musl-"}
1167: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1168: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1169: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1170: ${cross_prefix_mips="mips-linux-gnu-"}
1171: ${cross_prefix_nios2="nios2-linux-gnu-"}
1172: ${cross_prefix_ppc="powerpc-linux-gnu-"}
1173: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1174: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1175: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1176: ${cross_prefix_s390x="s390x-linux-gnu-"}
1177: ${cross_prefix_sh4="sh4-linux-gnu-"}
1178: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1179: ${cross_prefix_sparc="$cross_prefix_sparc64"}
1180: ${cross_prefix_tricore="tricore-"}
1181: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1182
1183: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1184: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1185: ${cross_cc_armeb="$cross_cc_arm"}
1186: ${cross_cc_cflags_armeb="-mbig-endian"}
1187: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1188: ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1189: ${cross_cc_cflags_i386="-m32"}
1190: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1191: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1192: ${cross_cc_ppc64le="$cross_cc_ppc64"}
1193: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1194: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1195: ${cross_cc_sparc="$cross_cc_sparc64"}
1196: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1197: ${cross_cc_cflags_x86_64="-m64"}
1198
1199compute_target_variable() {
1200  eval "$2="
1201  if eval test -n "\"\${cross_prefix_$1}\""; then
1202    if eval has "\"\${cross_prefix_$1}\$3\""; then
1203      eval "$2=\"\${cross_prefix_$1}\$3\""
1204    fi
1205  fi
1206}
1207
1208have_target() {
1209  for i; do
1210    case " $target_list " in
1211      *" $i "*) return 0;;
1212      *) ;;
1213    esac
1214  done
1215  return 1
1216}
1217
1218# probe_target_compiler TARGET
1219#
1220# Look for a compiler for the given target, either native or cross.
1221# Set variables target_* if a compiler is found, and container_cross_*
1222# if a Docker-based cross-compiler image is known for the target.
1223# Set got_cross_cc to yes/no depending on whether a non-container-based
1224# compiler was found.
1225#
1226# If TARGET is a user-mode emulation target, also set build_static to
1227# "y" if static linking is possible.
1228#
1229probe_target_compiler() {
1230  # reset all output variables
1231  got_cross_cc=no
1232  container_image=
1233  container_hosts=
1234  container_cross_cc=
1235  container_cross_ar=
1236  container_cross_as=
1237  container_cross_ld=
1238  container_cross_nm=
1239  container_cross_objcopy=
1240  container_cross_ranlib=
1241  container_cross_strip=
1242
1243  target_arch=${1%%-*}
1244  case $target_arch in
1245    aarch64) container_hosts="x86_64 aarch64" ;;
1246    alpha) container_hosts=x86_64 ;;
1247    arm) container_hosts="x86_64 aarch64" ;;
1248    cris) container_hosts=x86_64 ;;
1249    hexagon) container_hosts=x86_64 ;;
1250    hppa) container_hosts=x86_64 ;;
1251    i386) container_hosts=x86_64 ;;
1252    loongarch64) container_hosts=x86_64 ;;
1253    m68k) container_hosts=x86_64 ;;
1254    microblaze) container_hosts=x86_64 ;;
1255    mips64el) container_hosts=x86_64 ;;
1256    mips64) container_hosts=x86_64 ;;
1257    mipsel) container_hosts=x86_64 ;;
1258    mips) container_hosts=x86_64 ;;
1259    nios2) container_hosts=x86_64 ;;
1260    ppc) container_hosts=x86_64 ;;
1261    ppc64|ppc64le) container_hosts=x86_64 ;;
1262    riscv64) container_hosts=x86_64 ;;
1263    s390x) container_hosts=x86_64 ;;
1264    sh4) container_hosts=x86_64 ;;
1265    sparc64) container_hosts=x86_64 ;;
1266    tricore) container_hosts=x86_64 ;;
1267    x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1268    xtensa*) container_hosts=x86_64 ;;
1269  esac
1270
1271  for host in $container_hosts; do
1272    test "$container" != no || continue
1273    test "$host" = "$cpu" || continue
1274    case $target_arch in
1275      aarch64)
1276        # We don't have any bigendian build tools so we only use this for AArch64
1277        container_image=debian-arm64-cross
1278        container_cross_prefix=aarch64-linux-gnu-
1279        container_cross_cc=${container_cross_prefix}gcc
1280        ;;
1281      alpha)
1282        container_image=debian-legacy-test-cross
1283        container_cross_prefix=alpha-linux-gnu-
1284        container_cross_cc=${container_cross_prefix}gcc
1285        ;;
1286      arm)
1287        # We don't have any bigendian build tools so we only use this for ARM
1288        container_image=debian-armhf-cross
1289        container_cross_prefix=arm-linux-gnueabihf-
1290        ;;
1291      cris)
1292        container_image=fedora-cris-cross
1293        container_cross_prefix=cris-linux-gnu-
1294        ;;
1295      hexagon)
1296        container_image=debian-hexagon-cross
1297        container_cross_prefix=hexagon-unknown-linux-musl-
1298        container_cross_cc=${container_cross_prefix}clang
1299        ;;
1300      hppa)
1301        container_image=debian-all-test-cross
1302        container_cross_prefix=hppa-linux-gnu-
1303        container_cross_cc=${container_cross_prefix}gcc
1304        ;;
1305      i386)
1306        container_image=debian-i686-cross
1307        container_cross_prefix=i686-linux-gnu-
1308        ;;
1309      loongarch64)
1310        container_image=debian-loongarch-cross
1311        container_cross_prefix=loongarch64-unknown-linux-gnu-
1312        ;;
1313      m68k)
1314        container_image=debian-all-test-cross
1315        container_cross_prefix=m68k-linux-gnu-
1316        container_cross_cc=${container_cross_prefix}gcc
1317        ;;
1318      microblaze)
1319        container_image=debian-microblaze-cross
1320        container_cross_prefix=microblaze-linux-musl-
1321        ;;
1322      mips64el)
1323        container_image=debian-mips64el-cross
1324        container_cross_prefix=mips64el-linux-gnuabi64-
1325        ;;
1326      mips64)
1327        container_image=debian-all-test-cross
1328        container_cross_prefix=mips64-linux-gnuabi64-
1329        ;;
1330      mips)
1331        container_image=debian-all-test-cross
1332        container_cross_prefix=mips-linux-gnu-
1333        ;;
1334      nios2)
1335        container_image=debian-nios2-cross
1336        container_cross_prefix=nios2-linux-gnu-
1337        ;;
1338      ppc)
1339        container_image=debian-all-test-cross
1340        container_cross_prefix=powerpc-linux-gnu-
1341        container_cross_cc=${container_cross_prefix}gcc
1342        ;;
1343      ppc64|ppc64le)
1344        container_image=debian-all-test-cross
1345        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1346        ;;
1347      riscv64)
1348        container_image=debian-all-test-cross
1349        container_cross_prefix=riscv64-linux-gnu-
1350        ;;
1351      sh4)
1352        container_image=debian-legacy-test-cross
1353        container_cross_prefix=sh4-linux-gnu-
1354        ;;
1355      sparc64)
1356        container_image=debian-all-test-cross
1357        container_cross_prefix=sparc64-linux-gnu-
1358        ;;
1359      tricore)
1360        container_image=debian-tricore-cross
1361        container_cross_prefix=tricore-
1362        ;;
1363      x86_64)
1364        container_image=debian-amd64-cross
1365        container_cross_prefix=x86_64-linux-gnu-
1366        ;;
1367      xtensa*)
1368        container_image=debian-xtensa-cross
1369
1370        # default to the dc232b cpu
1371        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1372        ;;
1373      *)
1374        # Debian and GNU architecture names usually match
1375        container_image=debian-$target_arch-cross
1376        container_cross_prefix=$target_arch-linux-gnu-
1377        ;;
1378    esac
1379    : ${container_cross_cc:=${container_cross_prefix}gcc}
1380    : ${container_cross_ar:=${container_cross_prefix}ar}
1381    : ${container_cross_as:=${container_cross_prefix}as}
1382    : ${container_cross_ld:=${container_cross_prefix}ld}
1383    : ${container_cross_nm:=${container_cross_prefix}nm}
1384    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1385    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1386    : ${container_cross_strip:=${container_cross_prefix}strip}
1387  done
1388
1389  try=cross
1390  # For softmmu/roms we might be able to use the host compiler
1391  if [ "${1%softmmu}" != "$1" ]; then
1392      case "$target_arch:$cpu" in
1393        aarch64_be:aarch64 | \
1394        armeb:arm | \
1395        i386:x86_64 | \
1396        mips*:mips64 | \
1397        ppc*:ppc64 | \
1398        sparc:sparc64 | \
1399        "$cpu:$cpu")
1400        try='native cross' ;;
1401      esac
1402  fi
1403  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1404  for thistry in $try; do
1405    case $thistry in
1406    native)
1407      target_cc=$cc
1408      target_ccas=$ccas
1409      target_ar=$ar
1410      target_as=$as
1411      target_ld=$ld
1412      target_nm=$nm
1413      target_objcopy=$objcopy
1414      target_ranlib=$ranlib
1415      target_strip=$strip
1416      ;;
1417    cross)
1418      target_cc=
1419      if eval test -n "\"\${cross_cc_$target_arch}\""; then
1420        if eval has "\"\${cross_cc_$target_arch}\""; then
1421          eval "target_cc=\"\${cross_cc_$target_arch}\""
1422        fi
1423      else
1424        compute_target_variable $target_arch target_cc gcc
1425      fi
1426      target_ccas=$target_cc
1427      compute_target_variable $target_arch target_ar ar
1428      compute_target_variable $target_arch target_as as
1429      compute_target_variable $target_arch target_ld ld
1430      compute_target_variable $target_arch target_nm nm
1431      compute_target_variable $target_arch target_objcopy objcopy
1432      compute_target_variable $target_arch target_ranlib ranlib
1433      compute_target_variable $target_arch target_strip strip
1434      ;;
1435    esac
1436
1437    if test -n "$target_cc"; then
1438      case $target_arch in
1439        i386|x86_64)
1440          if $target_cc --version | grep -qi "clang"; then
1441            continue
1442          fi
1443          ;;
1444      esac
1445    elif test -n "$target_as" && test -n "$target_ld"; then
1446      # Special handling for assembler only targets
1447      case $target in
1448        tricore-softmmu)
1449          build_static=
1450          got_cross_cc=yes
1451          break
1452          ;;
1453        *)
1454          continue
1455          ;;
1456      esac
1457    else
1458      continue
1459    fi
1460
1461    write_c_skeleton
1462    case $1 in
1463      *-softmmu)
1464        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1465          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1466          got_cross_cc=yes
1467          break
1468        fi
1469        ;;
1470      *)
1471        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1472          build_static=y
1473          got_cross_cc=yes
1474          break
1475        fi
1476        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1477          build_static=
1478          got_cross_cc=yes
1479          break
1480        fi
1481        ;;
1482    esac
1483  done
1484  if test $got_cross_cc != yes; then
1485    build_static=
1486    target_cc=
1487    target_ccas=
1488    target_ar=
1489    target_as=
1490    target_ld=
1491    target_nm=
1492    target_objcopy=
1493    target_ranlib=
1494    target_strip=
1495  fi
1496  test -n "$target_cc"
1497}
1498
1499write_target_makefile() {
1500  echo "EXTRA_CFLAGS=$target_cflags"
1501  if test -z "$target_cc" && test -z "$target_as"; then
1502    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1503    echo "$1: docker-image-$container_image" >> Makefile.prereqs
1504    if test -n "$container_cross_cc"; then
1505      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1506      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1507    fi
1508    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1509    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1510    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1511    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1512    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1513    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1514    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1515  else
1516    if test -n "$target_cc"; then
1517      echo "CC=$target_cc"
1518      echo "CCAS=$target_ccas"
1519    fi
1520    if test -n "$target_ar"; then
1521      echo "AR=$target_ar"
1522    fi
1523    if test -n "$target_as"; then
1524      echo "AS=$target_as"
1525    fi
1526    if test -n "$target_ld"; then
1527      echo "LD=$target_ld"
1528    fi
1529    if test -n "$target_nm"; then
1530      echo "NM=$target_nm"
1531    fi
1532    if test -n "$target_objcopy"; then
1533      echo "OBJCOPY=$target_objcopy"
1534    fi
1535    if test -n "$target_ranlib"; then
1536      echo "RANLIB=$target_ranlib"
1537    fi
1538    if test -n "$target_strip"; then
1539      echo "STRIP=$target_strip"
1540    fi
1541  fi
1542}
1543
1544#######################################
1545# cross-compiled firmware targets
1546
1547# Set up build tree symlinks that point back into the source tree
1548# (these can be both files and directories).
1549# Caution: avoid adding files or directories here using wildcards. This
1550# will result in problems later if a new file matching the wildcard is
1551# added to the source tree -- nothing will cause configure to be rerun
1552# so the build tree will be missing the link back to the new file, and
1553# tests might fail. Prefer to keep the relevant files in their own
1554# directory and symlink the directory instead.
1555LINKS="Makefile"
1556LINKS="$LINKS docs/config"
1557LINKS="$LINKS pc-bios/optionrom/Makefile"
1558LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1559LINKS="$LINKS pc-bios/vof/Makefile"
1560LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1561LINKS="$LINKS tests/avocado tests/data"
1562LINKS="$LINKS tests/qemu-iotests/check"
1563LINKS="$LINKS python"
1564LINKS="$LINKS contrib/plugins/Makefile "
1565for f in $LINKS ; do
1566    if [ -e "$source_path/$f" ]; then
1567        symlink "$source_path/$f" "$f"
1568    fi
1569done
1570
1571echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1572
1573# Mac OS X ships with a broken assembler
1574if have_target i386-softmmu x86_64-softmmu && \
1575        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1576        test "$targetos" != "haiku" && \
1577        probe_target_compiler i386-softmmu; then
1578    subdirs="$subdirs pc-bios/optionrom"
1579    config_mak=pc-bios/optionrom/config.mak
1580    echo "# Automatically generated by configure - do not modify" > $config_mak
1581    echo "TOPSRC_DIR=$source_path" >> $config_mak
1582    write_target_makefile >> $config_mak
1583fi
1584
1585if have_target ppc-softmmu ppc64-softmmu && \
1586        probe_target_compiler ppc-softmmu; then
1587    subdirs="$subdirs pc-bios/vof"
1588    config_mak=pc-bios/vof/config.mak
1589    echo "# Automatically generated by configure - do not modify" > $config_mak
1590    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1591    write_target_makefile >> $config_mak
1592fi
1593
1594# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1595# (which is the lowest architecture level that Clang supports)
1596if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1597    GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1598  write_c_skeleton
1599  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1600  has_z900=$?
1601  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1602    if [ $has_z900 != 0 ]; then
1603      echo "WARNING: Your compiler does not support the z900!"
1604      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1605    fi
1606    subdirs="$subdirs pc-bios/s390-ccw"
1607    config_mak=pc-bios/s390-ccw/config-host.mak
1608    echo "# Automatically generated by configure - do not modify" > $config_mak
1609    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1610    echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1611    write_target_makefile >> $config_mak
1612  fi
1613fi
1614
1615#######################################
1616# generate config-host.mak
1617
1618config_host_mak="config-host.mak"
1619
1620echo "# Automatically generated by configure - do not modify" > $config_host_mak
1621echo >> $config_host_mak
1622
1623echo all: >> $config_host_mak
1624
1625echo "SRC_PATH=$source_path" >> $config_host_mak
1626echo "TARGET_DIRS=$target_list" >> $config_host_mak
1627echo "GDB=$gdb_bin" >> $config_host_mak
1628if test "$container" != no; then
1629    echo "RUNC=$runc" >> $config_host_mak
1630fi
1631echo "SUBDIRS=$subdirs" >> $config_host_mak
1632echo "PYTHON=$python" >> $config_host_mak
1633echo "MKVENV_ENSUREGROUP=$mkvenv ensuregroup $mkvenv_online_flag" >> $config_host_mak
1634echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1635echo "MESON=$meson" >> $config_host_mak
1636echo "NINJA=$ninja" >> $config_host_mak
1637echo "EXESUF=$EXESUF" >> $config_host_mak
1638
1639# use included Linux headers for KVM architectures
1640if test "$targetos" = "linux" && test -n "$linux_arch"; then
1641  symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1642fi
1643
1644for target in $target_list; do
1645    target_dir="$target"
1646    target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1647    case $target in
1648        *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1649        *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1650    esac
1651done
1652
1653if test "$default_targets" = "yes"; then
1654  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1655fi
1656
1657# contrib/plugins configuration
1658echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1659echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1660echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1661echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1662echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1663if test "$targetos" = windows; then
1664  echo "DLLTOOL=$dlltool" >> contrib/plugins/$config_host_mak
1665fi
1666if test "$targetos" = darwin; then
1667  echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1668fi
1669if test "$targetos" = windows; then
1670  echo "CONFIG_WIN32=y" >> contrib/plugins/$config_host_mak
1671fi
1672
1673# tests/tcg configuration
1674(config_host_mak=tests/tcg/config-host.mak
1675mkdir -p tests/tcg
1676echo "# Automatically generated by configure - do not modify" > $config_host_mak
1677echo "SRC_PATH=$source_path" >> $config_host_mak
1678
1679tcg_tests_targets=
1680for target in $target_list; do
1681  arch=${target%%-*}
1682
1683  case $target in
1684    xtensa*-linux-user)
1685      # the toolchain is not complete with headers, only build system tests
1686      continue
1687      ;;
1688    *-softmmu)
1689      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1690      qemu="qemu-system-$arch"
1691      ;;
1692    *-linux-user|*-bsd-user)
1693      qemu="qemu-$arch"
1694      ;;
1695  esac
1696
1697  if probe_target_compiler $target || test -n "$container_image"; then
1698      test -n "$container_image" && build_static=y
1699      mkdir -p "tests/tcg/$target"
1700      config_target_mak=tests/tcg/$target/config-target.mak
1701      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1702      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1703      echo "TARGET_NAME=$arch" >> "$config_target_mak"
1704      echo "TARGET=$target" >> "$config_target_mak"
1705      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1706      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1707      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1708
1709      # will GDB work with these binaries?
1710      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1711          echo "GDB=$gdb_bin" >> $config_target_mak
1712      fi
1713
1714      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1715      tcg_tests_targets="$tcg_tests_targets $target"
1716  fi
1717done
1718
1719if test "$tcg" = "enabled"; then
1720    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1721fi
1722)
1723
1724if test "$skip_meson" = no; then
1725  cross="config-meson.cross.new"
1726  meson_quote() {
1727    test $# = 0 && return
1728    echo "'$(echo $* | sed "s/ /','/g")'"
1729  }
1730
1731  echo "# Automatically generated by configure - do not modify" > $cross
1732  echo "[properties]" >> $cross
1733
1734  # unroll any custom device configs
1735  for a in $device_archs; do
1736      eval "c=\$devices_${a}"
1737      echo "${a}-softmmu = '$c'" >> $cross
1738  done
1739
1740  echo "[built-in options]" >> $cross
1741  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1742  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1743  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1744  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1745  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1746
1747  # Only enable by default for git builds and on select OSes
1748  echo "# environment defaults, can still be overridden on " >> $cross
1749  echo "# the command line" >> $cross
1750  if test -e "$source_path/.git" && \
1751      { test "$targetos" = linux || test "$targetos" = "windows"; }; then
1752      echo 'werror = true' >> $cross
1753  fi
1754  echo "[project options]" >> $cross
1755  if test "$SMBD" != ''; then
1756    echo "smbd = $(meson_quote "$SMBD")" >> $cross
1757  fi
1758  if test "${QEMU_GA_MANUFACTURER}" != ''; then
1759    echo "qemu_ga_manufacturer = $(meson_quote "${QEMU_GA_MANUFACTURER}")" >> $cross
1760  fi
1761  if test "${QEMU_GA_DISTRO}" != ''; then
1762    echo "qemu_ga_distro = $(meson_quote "${QEMU_GA_DISTRO}")" >> $cross
1763  fi
1764  if test "${QEMU_GA_VERSION}" != ''; then
1765    echo "qemu_ga_version = $(meson_quote "${QEMU_GA_VERSION}")" >> $cross
1766  fi
1767
1768  echo >> $cross
1769  echo "[binaries]" >> $cross
1770  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1771  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1772  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1773  echo "ar = [$(meson_quote $ar)]" >> $cross
1774  echo "dlltool = [$(meson_quote $dlltool)]" >> $cross
1775  echo "nm = [$(meson_quote $nm)]" >> $cross
1776  echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1777  echo "pkg-config = [$(meson_quote $pkg_config)]" >> $cross
1778  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1779  if has $sdl2_config; then
1780    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1781  fi
1782  echo "strip = [$(meson_quote $strip)]" >> $cross
1783  echo "widl = [$(meson_quote $widl)]" >> $cross
1784  echo "windres = [$(meson_quote $windres)]" >> $cross
1785  echo "windmc = [$(meson_quote $windmc)]" >> $cross
1786  if test "$cross_compile" = "yes"; then
1787    echo "[host_machine]" >> $cross
1788    echo "system = '$targetos'" >> $cross
1789    case "$cpu" in
1790        i386)
1791            echo "cpu_family = 'x86'" >> $cross
1792            ;;
1793        *)
1794            echo "cpu_family = '$cpu'" >> $cross
1795            ;;
1796    esac
1797    echo "cpu = '$cpu'" >> $cross
1798    if test "$bigendian" = "yes" ; then
1799        echo "endian = 'big'" >> $cross
1800    else
1801        echo "endian = 'little'" >> $cross
1802    fi
1803
1804    native="config-meson.native.new"
1805    echo "# Automatically generated by configure - do not modify" > $native
1806    echo "[binaries]" >> $native
1807    echo "c = [$(meson_quote $host_cc)]" >> $native
1808    mv $native config-meson.native
1809    meson_option_add --native-file
1810    meson_option_add config-meson.native
1811  fi
1812  mv $cross config-meson.cross
1813  meson_add_machine_file config-meson.cross
1814  if test -f "$source_path/configs/meson/$targetos.txt"; then
1815    meson_add_machine_file $source_path/configs/meson/$targetos.txt
1816  fi
1817
1818  rm -rf meson-private meson-info meson-logs
1819
1820  test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1821  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1822  test "$static" = yes && meson_option_add -Dprefer_static=true
1823  test "$pie" = no && meson_option_add -Db_pie=false
1824
1825  # QEMU options
1826  test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
1827  test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1828  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1829  test "$plugins" = yes && meson_option_add "-Dplugins=true"
1830  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1831  run_meson() {
1832    NINJA=$ninja $meson setup "$@" "$PWD" "$source_path"
1833  }
1834  eval run_meson $meson_options
1835  if test "$?" -ne 0 ; then
1836      error_exit "meson setup failed"
1837  fi
1838  echo "$meson" > build.ninja.stamp
1839else
1840  if test -f meson-private/cmd_line.txt; then
1841    # Adjust old command line options that were removed
1842    # sed -i is not portable
1843    perl -i -ne '
1844      /^sphinx_build/ && next;
1845      print;' meson-private/cmd_line.txt
1846  fi
1847fi
1848
1849# Save the configure command line for later reuse.
1850cat <<EOD >config.status
1851#!/bin/sh
1852# Generated by configure.
1853# Run this file to recreate the current configuration.
1854# Compiler output produced by configure, useful for debugging
1855# configure, is in config.log if it exists.
1856EOD
1857
1858preserve_env() {
1859    envname=$1
1860
1861    eval envval=\$$envname
1862
1863    if test -n "$envval"
1864    then
1865	echo "$envname='$envval'" >> config.status
1866	echo "export $envname" >> config.status
1867    else
1868	echo "unset $envname" >> config.status
1869    fi
1870}
1871
1872# Preserve various env variables that influence what
1873# features/build target configure will detect
1874preserve_env AR
1875preserve_env AS
1876preserve_env CC
1877preserve_env CFLAGS
1878preserve_env CXX
1879preserve_env CXXFLAGS
1880preserve_env DLLTOOL
1881preserve_env LD
1882preserve_env LDFLAGS
1883preserve_env LD_LIBRARY_PATH
1884preserve_env NM
1885preserve_env OBJCFLAGS
1886preserve_env OBJCOPY
1887preserve_env PATH
1888preserve_env PKG_CONFIG
1889preserve_env PKG_CONFIG_LIBDIR
1890preserve_env PKG_CONFIG_PATH
1891preserve_env PYTHON
1892preserve_env QEMU_GA_MANUFACTURER
1893preserve_env QEMU_GA_DISTRO
1894preserve_env QEMU_GA_VERSION
1895preserve_env SDL2_CONFIG
1896preserve_env SMBD
1897preserve_env STRIP
1898preserve_env WIDL
1899preserve_env WINDRES
1900preserve_env WINDMC
1901
1902printf "exec" >>config.status
1903for i in "$0" "$@"; do
1904  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1905done
1906echo ' "$@"' >>config.status
1907chmod +x config.status
1908
1909rm -r "$TMPDIR1"
1910