xref: /qemu/configure (revision 17252536)
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 $MARKER
34    then
35        echo "ERROR: Could not create ./build directory. Check the permissions on"
36        echo "your source directory, or try doing an out-of-tree build."
37        exit 1
38    fi
39
40    cat > GNUmakefile <<'EOF'
41# This file is auto-generated by configure to support in-source tree
42# 'make' command invocation
43
44ifeq ($(MAKECMDGOALS),)
45recurse: all
46endif
47
48.NOTPARALLEL: %
49%: force
50	@echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
51	@$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
52	@if test "$(MAKECMDGOALS)" = "distclean" && \
53	    test -e build/auto-created-by-configure ; \
54	then \
55	    rm -rf build GNUmakefile ; \
56	fi
57force: ;
58.PHONY: force
59GNUmakefile: ;
60
61EOF
62    cd build
63    exec "$source_path/configure" "$@"
64fi
65
66# Temporary directory used for files created while
67# configure runs. Since it is in the build directory
68# we can safely blow away any previous version of it
69# (and we need not jump through hoops to try to delete
70# it when configure exits.)
71TMPDIR1="config-temp"
72rm -rf "${TMPDIR1}"
73if ! mkdir -p "${TMPDIR1}"; then
74    echo "ERROR: failed to create temporary directory"
75    exit 1
76fi
77
78TMPB="qemu-conf"
79TMPC="${TMPDIR1}/${TMPB}.c"
80TMPO="${TMPDIR1}/${TMPB}.o"
81TMPE="${TMPDIR1}/${TMPB}.exe"
82
83rm -f config.log
84
85# Print a helpful header at the top of config.log
86echo "# QEMU configure log $(date)" >> config.log
87printf "# Configured with:" >> config.log
88# repeat the invocation to log and stdout for CI
89invoke=$(printf " '%s'" "$0" "$@")
90test -n "$GITLAB_CI" && echo "configuring with: $invoke"
91{ echo "$invoke"; echo; echo "#"; } >> config.log
92
93quote_sh() {
94    printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
95}
96
97print_error() {
98    (echo
99    echo "ERROR: $1"
100    while test -n "$2"; do
101        echo "       $2"
102        shift
103    done
104    echo) >&2
105}
106
107error_exit() {
108    print_error "$@"
109    exit 1
110}
111
112do_compiler() {
113  # Run the compiler, capturing its output to the log. First argument
114  # is compiler binary to execute.
115  compiler="$1"
116  shift
117  if test -n "$BASH_VERSION"; then eval '
118      echo >>config.log "
119funcs: ${FUNCNAME[*]}
120lines: ${BASH_LINENO[*]}"
121  '; fi
122  echo $compiler "$@" >> config.log
123  $compiler "$@" >> config.log 2>&1 || return $?
124}
125
126do_cc() {
127    do_compiler "$cc" $CPU_CFLAGS "$@"
128}
129
130compile_object() {
131  local_cflags="$1"
132  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
133}
134
135compile_prog() {
136  local_cflags="$1"
137  local_ldflags="$2"
138  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
139      $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
140}
141
142# symbolically link $1 to $2.  Portable version of "ln -sf".
143symlink() {
144  rm -rf "$2"
145  mkdir -p "$(dirname "$2")"
146  ln -s "$1" "$2"
147}
148
149# check whether a command is available to this shell (may be either an
150# executable or a builtin)
151has() {
152    type "$1" >/dev/null 2>&1
153}
154
155version_ge () {
156    local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
157    local_ver2=$(echo "$2" | tr . ' ')
158    while true; do
159        set x $local_ver1
160        local_first=${2-0}
161        # 'shift 2' if $2 is set, or 'shift' if $2 is not set
162        shift ${2:+2}
163        local_ver1=$*
164        set x $local_ver2
165        # the second argument finished, the first must be greater or equal
166        test $# = 1 && return 0
167        test $local_first -lt $2 && return 1
168        test $local_first -gt $2 && return 0
169        shift ${2:+2}
170        local_ver2=$*
171    done
172}
173
174if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
175then
176  error_exit "main directory cannot contain spaces nor colons"
177fi
178
179# parse CC options first; some compiler tests are used to establish
180# some defaults, based on the host environment
181
182# default parameters
183container_engine="auto"
184cpu=""
185cross_compile="no"
186cross_prefix=""
187host_cc="cc"
188EXTRA_CFLAGS=""
189EXTRA_CXXFLAGS=""
190EXTRA_OBJCFLAGS=""
191EXTRA_LDFLAGS=""
192
193# Default value for a variable defining feature "foo".
194#  * foo="no"  feature will only be used if --enable-foo arg is given
195#  * foo=""    feature will be searched for, and if found, will be used
196#              unless --disable-foo is given
197#  * foo="yes" this value will only be set by --enable-foo flag.
198#              feature will searched for,
199#              if not found, configure exits with error
200#
201# Always add --enable-foo and --disable-foo command line args.
202# Distributions want to ensure that several features are compiled in, and it
203# is impossible without a --enable-foo that exits if a feature is not found.
204default_feature=""
205
206for opt do
207  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
208  case "$opt" in
209  --cross-prefix=*) cross_prefix="$optarg"
210                    cross_compile="yes"
211  ;;
212  --cc=*) CC="$optarg"
213  ;;
214  --cxx=*) CXX="$optarg"
215  ;;
216  --objcc=*) objcc="$optarg"
217  ;;
218  --cpu=*) cpu="$optarg"
219  ;;
220  --extra-cflags=*)
221    EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
222    EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
223    EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
224    ;;
225  --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
226  ;;
227  --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
228  ;;
229  --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
230  ;;
231  --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
232  ;;
233  --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
234                      eval "cross_cc_cflags_${cc_arch}=\$optarg"
235  ;;
236  --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
237                eval "cross_cc_${cc_arch}=\$optarg"
238  ;;
239  --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
240  ;;
241  --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
242                    eval "cross_prefix_${cc_arch}=\$optarg"
243  ;;
244  --without-default-features) default_feature="no"
245  ;;
246  esac
247done
248
249default_cflags='-O2 -g'
250git_submodules_action="update"
251git="git"
252docs="auto"
253EXESUF=""
254prefix="/usr/local"
255qemu_suffix="qemu"
256system="yes"
257linux_user=""
258bsd_user=""
259plugins="$default_feature"
260subdirs=""
261ninja=""
262python=
263download="enabled"
264bindir="bin"
265skip_meson=no
266use_containers="yes"
267gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
268gdb_arches=""
269werror=""
270
271# Don't accept a target_list environment variable.
272unset target_list
273unset target_list_exclude
274
275# The following Meson options are handled manually (still they
276# are included in the automatically generated help message)
277# because they automatically enable/disable other options
278tcg="auto"
279cfi="false"
280
281# Meson has PIE as a boolean rather than enabled/disabled/auto,
282# and we also need to check for -static-pie before Meson runs
283# which requires knowing whether --static is enabled.
284pie=""
285static="no"
286
287# Preferred compiler:
288#  ${CC} (if set)
289#  ${cross_prefix}gcc (if cross-prefix specified)
290#  system compiler
291if test -z "${CC}${cross_prefix}"; then
292  cc="cc"
293else
294  cc="${CC-${cross_prefix}gcc}"
295fi
296
297if test -z "${CXX}${cross_prefix}"; then
298  cxx="c++"
299else
300  cxx="${CXX-${cross_prefix}g++}"
301fi
302
303# Preferred ObjC compiler:
304# $objcc (if set, i.e. via --objcc option)
305# ${cross_prefix}clang (if cross-prefix specified)
306# clang (if available)
307# $cc
308if test -z "${objcc}${cross_prefix}"; then
309  if has clang; then
310    objcc=clang
311  else
312    objcc="$cc"
313  fi
314else
315  objcc="${objcc-${cross_prefix}clang}"
316fi
317
318ar="${AR-${cross_prefix}ar}"
319as="${AS-${cross_prefix}as}"
320ccas="${CCAS-$cc}"
321objcopy="${OBJCOPY-${cross_prefix}objcopy}"
322ld="${LD-${cross_prefix}ld}"
323ranlib="${RANLIB-${cross_prefix}ranlib}"
324nm="${NM-${cross_prefix}nm}"
325smbd="$SMBD"
326strip="${STRIP-${cross_prefix}strip}"
327widl="${WIDL-${cross_prefix}widl}"
328windres="${WINDRES-${cross_prefix}windres}"
329windmc="${WINDMC-${cross_prefix}windmc}"
330pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
331sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
332
333check_define() {
334cat > $TMPC <<EOF
335#if !defined($1)
336#error $1 not defined
337#endif
338int main(void) { return 0; }
339EOF
340  compile_object
341}
342
343write_c_skeleton() {
344    cat > $TMPC <<EOF
345int main(void) { return 0; }
346EOF
347}
348
349if check_define __linux__ ; then
350  targetos=linux
351elif check_define _WIN32 ; then
352  targetos=windows
353elif check_define __OpenBSD__ ; then
354  targetos=openbsd
355elif check_define __sun__ ; then
356  targetos=sunos
357elif check_define __HAIKU__ ; then
358  targetos=haiku
359elif check_define __FreeBSD__ ; then
360  targetos=freebsd
361elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
362  targetos=gnu/kfreebsd
363elif check_define __DragonFly__ ; then
364  targetos=dragonfly
365elif check_define __NetBSD__; then
366  targetos=netbsd
367elif check_define __APPLE__; then
368  targetos=darwin
369else
370  # This is a fatal error, but don't report it yet, because we
371  # might be going to just print the --help text, or it might
372  # be the result of a missing compiler.
373  targetos=bogus
374fi
375
376# OS specific
377
378case $targetos in
379windows)
380  plugins="no"
381  pie="no"
382;;
383haiku)
384  pie="no"
385;;
386esac
387
388if test ! -z "$cpu" ; then
389  # command line argument
390  :
391elif check_define __i386__ ; then
392  cpu="i386"
393elif check_define __x86_64__ ; then
394  if check_define __ILP32__ ; then
395    cpu="x32"
396  else
397    cpu="x86_64"
398  fi
399elif check_define __sparc__ ; then
400  if check_define __arch64__ ; then
401    cpu="sparc64"
402  else
403    cpu="sparc"
404  fi
405elif check_define _ARCH_PPC ; then
406  if check_define _ARCH_PPC64 ; then
407    if check_define _LITTLE_ENDIAN ; then
408      cpu="ppc64le"
409    else
410      cpu="ppc64"
411    fi
412  else
413    cpu="ppc"
414  fi
415elif check_define __mips__ ; then
416  cpu="mips"
417elif check_define __s390__ ; then
418  if check_define __s390x__ ; then
419    cpu="s390x"
420  else
421    cpu="s390"
422  fi
423elif check_define __riscv ; then
424  if check_define _LP64 ; then
425    cpu="riscv64"
426  else
427    cpu="riscv32"
428  fi
429elif check_define __arm__ ; then
430  cpu="arm"
431elif check_define __aarch64__ ; then
432  cpu="aarch64"
433elif check_define __loongarch64 ; then
434  cpu="loongarch64"
435else
436  # Using uname is really broken, but it is just a fallback for architectures
437  # that are going to use TCI anyway
438  cpu=$(uname -m)
439  echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
440fi
441
442# Normalise host CPU name to the values used by Meson cross files and in source
443# directories, and set multilib cflags.  The canonicalization isn't really
444# necessary, because the architectures that we check for should not hit the
445# 'uname -m' case, but better safe than sorry in case --cpu= is used.
446#
447# Note that this case should only have supported host CPUs, not guests.
448# Please keep it sorted and synchronized with meson.build's host_arch.
449host_arch=
450linux_arch=
451case "$cpu" in
452  aarch64)
453    host_arch=aarch64
454    linux_arch=arm64
455    ;;
456
457  armv*b|armv*l|arm)
458    cpu=arm
459    host_arch=arm
460    linux_arch=arm
461    ;;
462
463  i386|i486|i586|i686)
464    cpu="i386"
465    host_arch=i386
466    linux_arch=x86
467    CPU_CFLAGS="-m32"
468    ;;
469
470  loongarch*)
471    cpu=loongarch64
472    host_arch=loongarch64
473    ;;
474
475  mips64*)
476    cpu=mips64
477    host_arch=mips
478    linux_arch=mips
479    ;;
480  mips*)
481    cpu=mips
482    host_arch=mips
483    linux_arch=mips
484    ;;
485
486  ppc)
487    host_arch=ppc
488    linux_arch=powerpc
489    CPU_CFLAGS="-m32"
490    ;;
491  ppc64)
492    host_arch=ppc64
493    linux_arch=powerpc
494    CPU_CFLAGS="-m64 -mbig-endian"
495    ;;
496  ppc64le)
497    cpu=ppc64
498    host_arch=ppc64
499    linux_arch=powerpc
500    CPU_CFLAGS="-m64 -mlittle-endian"
501    ;;
502
503  riscv32 | riscv64)
504    host_arch=riscv
505    linux_arch=riscv
506    ;;
507
508  s390)
509    linux_arch=s390
510    CPU_CFLAGS="-m31"
511    ;;
512  s390x)
513    host_arch=s390x
514    linux_arch=s390
515    CPU_CFLAGS="-m64"
516    ;;
517
518  sparc|sun4[cdmuv])
519    cpu=sparc
520    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
521    ;;
522  sparc64)
523    host_arch=sparc64
524    CPU_CFLAGS="-m64 -mcpu=ultrasparc"
525    ;;
526
527  x32)
528    cpu="x86_64"
529    host_arch=x86_64
530    linux_arch=x86
531    CPU_CFLAGS="-mx32"
532    ;;
533  x86_64|amd64)
534    cpu="x86_64"
535    host_arch=x86_64
536    linux_arch=x86
537    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
538    # If we truly care, we should simply detect this case at
539    # runtime and generate the fallback to serial emulation.
540    CPU_CFLAGS="-m64 -mcx16"
541    ;;
542esac
543
544if test -n "$host_arch" && {
545    ! test -d "$source_path/linux-user/include/host/$host_arch" ||
546    ! test -d "$source_path/common-user/host/$host_arch"; }; then
547    error_exit "linux-user/include/host/$host_arch does not exist." \
548       "This is a bug in the configure script, please report it."
549fi
550if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
551    error_exit "linux-headers/asm-$linux_arch does not exist." \
552       "This is a bug in the configure script, please report it."
553fi
554
555check_py_version() {
556    # We require python >= 3.8.
557    # NB: a True python conditional creates a non-zero return code (Failure)
558    "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
559}
560
561first_python=
562if test -z "${PYTHON}"; then
563    # A bare 'python' is traditionally python 2.x, but some distros
564    # have it as python 3.x, so check in both places.
565    for binary in python3 python python3.12 python3.11 \
566                          python3.10 python3.9 python3.8; do
567        if has "$binary"; then
568            python=$(command -v "$binary")
569            if check_py_version "$python"; then
570                # This one is good.
571                first_python=
572                break
573            else
574                first_python=$python
575            fi
576        fi
577    done
578else
579    # Same as above, but only check the environment variable.
580    has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
581    python=$(command -v "$PYTHON")
582    if check_py_version "$python"; then
583        # This one is good.
584        first_python=
585    else
586        first_python=$first_python
587    fi
588fi
589
590# Check for ancillary tools used in testing
591genisoimage=
592for binary in genisoimage mkisofs
593do
594    if has $binary
595    then
596        genisoimage=$(command -v "$binary")
597        break
598    fi
599done
600
601if test "$targetos" = "windows" ; then
602  EXESUF=".exe"
603  prefix="/qemu"
604  bindir=""
605  qemu_suffix=""
606fi
607
608meson_option_build_array() {
609  printf '['
610  (if test "$targetos" = windows; then
611    IFS=\;
612  else
613    IFS=:
614  fi
615  for e in $1; do
616    printf '"""'
617    # backslash escape any '\' and '"' characters
618    printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
619    printf '""",'
620  done)
621  printf ']\n'
622}
623
624. "$source_path/scripts/meson-buildoptions.sh"
625
626meson_options=
627meson_option_add() {
628  local arg
629  for arg; do
630    meson_options="$meson_options $(quote_sh "$arg")"
631  done
632}
633meson_option_parse() {
634  meson_options="$meson_options $(_meson_option_parse "$@")"
635  if test $? -eq 1; then
636    echo "ERROR: unknown option $1"
637    echo "Try '$0 --help' for more information"
638    exit 1
639  fi
640}
641
642for opt do
643  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
644  case "$opt" in
645  --help|-h) show_help=yes
646  ;;
647  --version|-V) exec cat "$source_path/VERSION"
648  ;;
649  --prefix=*) prefix="$optarg"
650  ;;
651  --cross-prefix=*)
652  ;;
653  --cc=*)
654  ;;
655  --host-cc=*) host_cc="$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  --smbd=*) smbd="$optarg"
672  ;;
673  --extra-cflags=*)
674  ;;
675  --extra-cxxflags=*)
676  ;;
677  --extra-objcflags=*)
678  ;;
679  --extra-ldflags=*)
680  ;;
681  --cross-cc-*)
682  ;;
683  --cross-prefix-*)
684  ;;
685  --enable-docs) docs=enabled
686  ;;
687  --disable-docs) docs=disabled
688  ;;
689  --cpu=*)
690  ;;
691  --target-list=*) target_list="$optarg"
692                   if test "$target_list_exclude"; then
693                       error_exit "Can't mix --target-list with --target-list-exclude"
694                   fi
695  ;;
696  --target-list-exclude=*) target_list_exclude="$optarg"
697                   if test "$target_list"; then
698                       error_exit "Can't mix --target-list-exclude with --target-list"
699                   fi
700  ;;
701  --with-default-devices) meson_option_add -Ddefault_devices=true
702  ;;
703  --without-default-devices) meson_option_add -Ddefault_devices=false
704  ;;
705  --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
706  ;;
707  --with-devices-*) device_arch=${opt#--with-devices-};
708                    device_arch=${device_arch%%=*}
709                    cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
710                    if test -f "$cf"; then
711                        device_archs="$device_archs $device_arch"
712                        eval "devices_${device_arch}=\$optarg"
713                    else
714                        error_exit "File $cf does not exist"
715                    fi
716  ;;
717  --without-default-features) # processed above
718  ;;
719  --static) static="yes"
720  ;;
721  --bindir=*) bindir="$optarg"
722  ;;
723  --with-suffix=*) qemu_suffix="$optarg"
724  ;;
725  --host=*|--build=*|\
726  --disable-dependency-tracking|\
727  --sbindir=*|--sharedstatedir=*|\
728  --oldincludedir=*|--datarootdir=*|--infodir=*|\
729  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
730    # These switches are silently ignored, for compatibility with
731    # autoconf-generated configure scripts. This allows QEMU's
732    # configure to be used by RPM and similar macros that set
733    # lots of directory switches by default.
734  ;;
735  --enable-debug)
736      # Enable debugging options that aren't excessively noisy
737      meson_option_parse --enable-debug-tcg ""
738      meson_option_parse --enable-debug-graph-lock ""
739      meson_option_parse --enable-debug-mutex ""
740      meson_option_add -Doptimization=0
741      default_cflags='-O0 -g'
742  ;;
743  --disable-tcg) tcg="disabled"
744                 plugins="no"
745  ;;
746  --enable-tcg) tcg="enabled"
747  ;;
748  --disable-system) system="no"
749  ;;
750  --enable-system) system="yes"
751  ;;
752  --disable-user)
753      linux_user="no" ;
754      bsd_user="no" ;
755  ;;
756  --enable-user) ;;
757  --disable-linux-user) linux_user="no"
758  ;;
759  --enable-linux-user) linux_user="yes"
760  ;;
761  --disable-bsd-user) bsd_user="no"
762  ;;
763  --enable-bsd-user) bsd_user="yes"
764  ;;
765  --enable-pie) pie="yes"
766  ;;
767  --disable-pie) pie="no"
768  ;;
769  --enable-werror) werror="yes"
770  ;;
771  --disable-werror) werror="no"
772  ;;
773  --enable-cfi) cfi=true
774  ;;
775  --disable-cfi) cfi=false
776  ;;
777  --disable-download) download="disabled"; git_submodules_action=validate;
778  ;;
779  --enable-download) download="enabled"; git_submodules_action=update;
780  ;;
781  --enable-plugins) if test "$targetos" = "windows"; then
782                        error_exit "TCG plugins not currently supported on Windows platforms"
783                    else
784                        plugins="yes"
785                    fi
786  ;;
787  --disable-plugins) plugins="no"
788  ;;
789  --enable-containers) use_containers="yes"
790  ;;
791  --disable-containers) use_containers="no"
792  ;;
793  --container-engine=*) container_engine="$optarg"
794  ;;
795  --gdb=*) gdb_bin="$optarg"
796  ;;
797  # everything else has the same name in configure and meson
798  --*) meson_option_parse "$opt" "$optarg"
799  ;;
800  # Pass through -Dxxxx options to meson
801  -D*) meson_options="$meson_options $opt"
802  ;;
803  esac
804done
805
806if ! test -e "$source_path/.git"
807then
808    git_submodules_action="validate"
809fi
810
811# test for any invalid configuration combinations
812if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
813    error_exit "Can't enable plugins on non-TCG builds"
814fi
815
816if ! test -f "$source_path/subprojects/keycodemapdb/README" \
817    && test "$download" = disabled
818then
819    echo
820    echo "ERROR: missing subprojects"
821    echo
822    if test -e "$source_path/.git"; then
823        echo "--disable-download specified but subprojects were not"
824        echo 'checked out.  Please invoke "meson subprojects download"'
825        echo "before configuring QEMU, or remove --disable-download"
826        echo "from the command line."
827    else
828        echo "This is not a GIT checkout but subproject content appears to"
829        echo "be missing. Do not use 'git archive' or GitHub download links"
830        echo "to acquire QEMU source archives. Non-GIT builds are only"
831        echo "supported with source archives linked from:"
832        echo
833        echo "  https://www.qemu.org/download/#source"
834        echo
835        echo "Developers working with GIT can use scripts/archive-source.sh"
836        echo "if they need to create valid source archives."
837    fi
838    echo
839    exit 1
840fi
841
842default_target_list=""
843mak_wilds=""
844
845if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
846    if [ "$linux_user" != no ]; then
847        if [ "$targetos" = linux ]; then
848            linux_user=yes
849        elif [ "$linux_user" = yes ]; then
850            error_exit "linux-user not supported on this architecture"
851        fi
852        if [ "$linux_user" = "yes" ]; then
853            mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
854        fi
855    fi
856    if [ "$bsd_user" != no ]; then
857        if [ "$bsd_user" = "" ]; then
858            test $targetos = freebsd && bsd_user=yes
859        fi
860        if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
861            error_exit "bsd-user not supported on this host OS"
862        fi
863        if [ "$bsd_user" = "yes" ]; then
864            mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
865        fi
866    fi
867else
868    if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
869        error_exit "user mode emulation not supported on this architecture"
870    fi
871fi
872if [ "$system" = "yes" ]; then
873    mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
874fi
875
876for config in $mak_wilds; do
877    target="$(basename "$config" .mak)"
878    if echo "$target_list_exclude" | grep -vq "$target"; then
879        default_target_list="${default_target_list} $target"
880    fi
881done
882
883if test x"$show_help" = x"yes" ; then
884cat << EOF
885
886Usage: configure [options]
887Options: [defaults in brackets after descriptions]
888
889Standard options:
890  --help                   print this message
891  --prefix=PREFIX          install in PREFIX [$prefix]
892  --target-list=LIST       set target list (default: build all)
893$(echo Available targets: $default_target_list | \
894  fold -s -w 53 | sed -e 's/^/                           /')
895  --target-list-exclude=LIST exclude a set of targets from the default target-list
896
897Advanced options (experts only):
898  -Dmesonoptname=val       passthrough option to meson unmodified
899  --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
900  --cc=CC                  use C compiler CC [$cc]
901  --host-cc=CC             when cross compiling, use C compiler CC for code run
902                           at build time [$host_cc]
903  --cxx=CXX                use C++ compiler CXX [$cxx]
904  --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
905  --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
906  --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
907  --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
908  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
909  --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
910  --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
911  --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
912  --python=PYTHON          use specified python [$python]
913  --ninja=NINJA            use specified ninja [$ninja]
914  --smbd=SMBD              use specified smbd [$smbd]
915  --static                 enable static build [$static]
916  --bindir=PATH            install binaries in PATH
917  --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
918  --without-default-features default all --enable-* options to "disabled"
919  --without-default-devices  do not include any device that is not needed to
920                           start the emulator (only use if you are including
921                           desired devices in configs/devices/)
922  --with-devices-ARCH=NAME override default configs/devices
923  --enable-debug           enable common debug build options
924  --disable-werror         disable compilation abort on warning
925  --cpu=CPU                Build for host CPU [$cpu]
926  --enable-plugins
927                           enable plugins via shared library loading
928  --disable-containers     don't use containers for cross-building
929  --container-engine=TYPE  which container engine to use [$container_engine]
930  --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
931EOF
932  meson_options_help
933cat << EOF
934  system          all system emulation targets
935  user            supported user emulation targets
936  linux-user      all linux usermode emulation targets
937  bsd-user        all BSD usermode emulation targets
938  pie             Position Independent Executables
939
940NOTE: The object files are built at the place where configure is launched
941EOF
942exit 0
943fi
944
945# Remove old dependency files to make sure that they get properly regenerated
946rm -f ./*/config-devices.mak.d
947
948if test -z "$python"
949then
950    # If first_python is set, there was a binary somewhere even though
951    # it was not suitable.  Use it for the error message.
952    if test -n "$first_python"; then
953        error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
954            "Use --python=/path/to/python to specify a supported Python."
955    else
956        error_exit "Python not found. Use --python=/path/to/python"
957    fi
958fi
959
960if ! check_py_version "$python"; then
961  error_exit "Cannot use '$python', Python >= 3.8 is required." \
962             "Use --python=/path/to/python to specify a supported Python." \
963             "Maybe try:" \
964             "  openSUSE Leap 15.3+: zypper install python39" \
965             "  CentOS 8: dnf install python38"
966fi
967
968# Resolve PATH
969python="$(command -v "$python")"
970
971# Create a Python virtual environment using our configured python.
972# The stdout of this script will be the location of a symlink that
973# points to the configured Python.
974# Entry point scripts for pip, meson, and sphinx are generated if those
975# packages are present.
976
977# Defaults assumed for now:
978# - venv is cleared if it exists already;
979# - venv is allowed to use system packages;
980# - all setup can be performed offline;
981# - missing packages may be fetched from PyPI,
982#   unless --disable-download is passed.
983# - pip is not installed into the venv when possible,
984#   but ensurepip is called as a fallback when necessary.
985
986echo "python determined to be '$python'"
987echo "python version: $($python --version)"
988
989python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
990if test "$?" -ne 0 ; then
991    error_exit "python venv creation failed"
992fi
993
994# Suppress writing compiled files
995python="$python -B"
996mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
997
998# Finish preparing the virtual environment using vendored .whl files
999
1000if $python -c 'import sys; sys.exit(sys.version_info >= (3,11))'; then
1001    $mkvenv ensure --dir "${source_path}/python/wheels" \
1002        'tomli>=1.2.0' || exit 1
1003fi
1004$mkvenv ensuregroup --dir "${source_path}/python/wheels" \
1005     ${source_path}/pythondeps.toml meson || exit 1
1006
1007# At this point, we expect Meson to be installed and available.
1008# We expect mkvenv or pip to have created pyvenv/bin/meson for us.
1009# We ignore PATH completely here: we want to use the venv's Meson
1010# *exclusively*.
1011
1012meson="$(cd pyvenv/bin; pwd)/meson"
1013
1014# Conditionally ensure Sphinx is installed.
1015
1016mkvenv_flags=""
1017if test "$download" = "enabled" -a "$docs" = "enabled" ; then
1018    mkvenv_flags="--online"
1019fi
1020
1021if test "$docs" != "disabled" ; then
1022    if ! $mkvenv ensuregroup \
1023         $mkvenv_flags \
1024         ${source_path}/pythondeps.toml docs;
1025    then
1026        if test "$docs" = "enabled" ; then
1027            exit 1
1028        fi
1029        echo "Sphinx not found/usable, disabling docs."
1030        docs=disabled
1031    else
1032        docs=enabled
1033    fi
1034fi
1035
1036# Probe for ninja
1037
1038if test -z "$ninja"; then
1039    for c in ninja ninja-build samu; do
1040        if has $c; then
1041            ninja=$(command -v "$c")
1042            break
1043        fi
1044    done
1045    if test -z "$ninja"; then
1046      error_exit "Cannot find Ninja"
1047    fi
1048fi
1049
1050# Consult white-list to determine whether to enable werror
1051# by default.  Only enable by default for git builds
1052if test -z "$werror" ; then
1053    if test -e "$source_path/.git" && \
1054        { test "$targetos" = linux || test "$targetos" = "windows"; }; then
1055        werror="yes"
1056    else
1057        werror="no"
1058    fi
1059fi
1060
1061if test "$targetos" = "bogus"; then
1062    # Now that we know that we're not printing the help and that
1063    # the compiler works (so the results of the check_defines we used
1064    # to identify the OS are reliable), if we didn't recognize the
1065    # host OS we should stop now.
1066    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1067fi
1068
1069if test "$static" = "yes" ; then
1070  if test "$plugins" = "yes"; then
1071    error_exit "static and plugins are mutually incompatible"
1072  else
1073    plugins="no"
1074  fi
1075fi
1076test "$plugins" = "" && plugins=yes
1077if test "$plugins" = "yes"; then
1078  subdirs="$subdirs contrib/plugins"
1079fi
1080
1081cat > $TMPC << EOF
1082
1083#ifdef __linux__
1084#  define THREAD __thread
1085#else
1086#  define THREAD
1087#endif
1088static THREAD int tls_var;
1089int main(void) { return tls_var; }
1090EOF
1091
1092if test "$static" = "yes"; then
1093  if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1094    pie="yes"
1095  elif test "$pie" = "yes"; then
1096    error_exit "-static-pie not available due to missing toolchain support"
1097  else
1098    pie="no"
1099  fi
1100elif test "$pie" != "no"; then
1101  if compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1102    pie="yes"
1103  elif test "$pie" = "yes"; then
1104    error_exit "PIE not available due to missing toolchain support"
1105  else
1106    echo "Disabling PIE due to missing toolchain support"
1107    pie="no"
1108  fi
1109fi
1110
1111##########################################
1112
1113if test -z "${target_list+xxx}" ; then
1114    default_targets=yes
1115    for target in $default_target_list; do
1116        target_list="$target_list $target"
1117    done
1118    target_list="${target_list# }"
1119else
1120    default_targets=no
1121    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1122    for target in $target_list; do
1123        # Check that we recognised the target name; this allows a more
1124        # friendly error message than if we let it fall through.
1125        case " $default_target_list " in
1126            *" $target "*)
1127                ;;
1128            *)
1129                error_exit "Unknown target name '$target'"
1130                ;;
1131        esac
1132    done
1133fi
1134
1135if test "$tcg" = "auto"; then
1136  if test -z "$target_list"; then
1137    tcg="disabled"
1138  else
1139    tcg="enabled"
1140  fi
1141fi
1142
1143##########################################
1144# big/little endian test
1145cat > $TMPC << EOF
1146#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1147# error LITTLE
1148#endif
1149int main(void) { return 0; }
1150EOF
1151
1152if ! compile_prog ; then
1153  bigendian="no"
1154else
1155  cat > $TMPC << EOF
1156#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1157# error BIG
1158#endif
1159int main(void) { return 0; }
1160EOF
1161
1162  if ! compile_prog ; then
1163    bigendian="yes"
1164  else
1165    echo big/little test failed
1166    exit 1
1167  fi
1168fi
1169
1170##########################################
1171# functions to probe cross compilers
1172
1173container="no"
1174runc=""
1175if test $use_containers = "yes" && (has "docker" || has "podman"); then
1176    case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1177        *docker) container=docker ;;
1178        podman) container=podman ;;
1179        no) container=no ;;
1180    esac
1181    if test "$container" != "no"; then
1182        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1183        runc=$container
1184    fi
1185fi
1186
1187# cross compilers defaults, can be overridden with --cross-cc-ARCH
1188: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1189: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1190: ${cross_prefix_alpha="alpha-linux-gnu-"}
1191: ${cross_prefix_arm="arm-linux-gnueabihf-"}
1192: ${cross_prefix_armeb="$cross_prefix_arm"}
1193: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1194: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1195: ${cross_prefix_hppa="hppa-linux-gnu-"}
1196: ${cross_prefix_i386="i686-linux-gnu-"}
1197: ${cross_prefix_m68k="m68k-linux-gnu-"}
1198: ${cross_prefix_microblaze="microblaze-linux-musl-"}
1199: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1200: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1201: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1202: ${cross_prefix_mips="mips-linux-gnu-"}
1203: ${cross_prefix_nios2="nios2-linux-gnu-"}
1204: ${cross_prefix_ppc="powerpc-linux-gnu-"}
1205: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1206: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1207: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1208: ${cross_prefix_s390x="s390x-linux-gnu-"}
1209: ${cross_prefix_sh4="sh4-linux-gnu-"}
1210: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1211: ${cross_prefix_sparc="$cross_prefix_sparc64"}
1212: ${cross_prefix_tricore="tricore-"}
1213: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1214
1215: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1216: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1217: ${cross_cc_armeb="$cross_cc_arm"}
1218: ${cross_cc_cflags_armeb="-mbig-endian"}
1219: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1220: ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1221: ${cross_cc_cflags_i386="-m32"}
1222: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1223: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1224: ${cross_cc_ppc64le="$cross_cc_ppc64"}
1225: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1226: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1227: ${cross_cc_sparc="$cross_cc_sparc64"}
1228: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1229: ${cross_cc_cflags_x86_64="-m64"}
1230
1231compute_target_variable() {
1232  eval "$2="
1233  if eval test -n "\"\${cross_prefix_$1}\""; then
1234    if eval has "\"\${cross_prefix_$1}\$3\""; then
1235      eval "$2=\"\${cross_prefix_$1}\$3\""
1236    fi
1237  fi
1238}
1239
1240have_target() {
1241  for i; do
1242    case " $target_list " in
1243      *" $i "*) return 0;;
1244      *) ;;
1245    esac
1246  done
1247  return 1
1248}
1249
1250# probe_target_compiler TARGET
1251#
1252# Look for a compiler for the given target, either native or cross.
1253# Set variables target_* if a compiler is found, and container_cross_*
1254# if a Docker-based cross-compiler image is known for the target.
1255# Set got_cross_cc to yes/no depending on whether a non-container-based
1256# compiler was found.
1257#
1258# If TARGET is a user-mode emulation target, also set build_static to
1259# "y" if static linking is possible.
1260#
1261probe_target_compiler() {
1262  # reset all output variables
1263  got_cross_cc=no
1264  container_image=
1265  container_hosts=
1266  container_cross_cc=
1267  container_cross_ar=
1268  container_cross_as=
1269  container_cross_ld=
1270  container_cross_nm=
1271  container_cross_objcopy=
1272  container_cross_ranlib=
1273  container_cross_strip=
1274
1275  target_arch=${1%%-*}
1276  case $target_arch in
1277    aarch64) container_hosts="x86_64 aarch64" ;;
1278    alpha) container_hosts=x86_64 ;;
1279    arm) container_hosts="x86_64 aarch64" ;;
1280    cris) container_hosts=x86_64 ;;
1281    hexagon) container_hosts=x86_64 ;;
1282    hppa) container_hosts=x86_64 ;;
1283    i386) container_hosts=x86_64 ;;
1284    loongarch64) container_hosts=x86_64 ;;
1285    m68k) container_hosts=x86_64 ;;
1286    microblaze) container_hosts=x86_64 ;;
1287    mips64el) container_hosts=x86_64 ;;
1288    mips64) container_hosts=x86_64 ;;
1289    mipsel) container_hosts=x86_64 ;;
1290    mips) container_hosts=x86_64 ;;
1291    nios2) container_hosts=x86_64 ;;
1292    ppc) container_hosts=x86_64 ;;
1293    ppc64|ppc64le) container_hosts=x86_64 ;;
1294    riscv64) container_hosts=x86_64 ;;
1295    s390x) container_hosts=x86_64 ;;
1296    sh4) container_hosts=x86_64 ;;
1297    sparc64) container_hosts=x86_64 ;;
1298    tricore) container_hosts=x86_64 ;;
1299    x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1300    xtensa*) container_hosts=x86_64 ;;
1301  esac
1302
1303  for host in $container_hosts; do
1304    test "$container" != no || continue
1305    test "$host" = "$cpu" || continue
1306    case $target_arch in
1307      aarch64)
1308        # We don't have any bigendian build tools so we only use this for AArch64
1309        container_image=debian-arm64-cross
1310        container_cross_prefix=aarch64-linux-gnu-
1311        container_cross_cc=${container_cross_prefix}gcc
1312        ;;
1313      alpha)
1314        container_image=debian-alpha-cross
1315        container_cross_prefix=alpha-linux-gnu-
1316        ;;
1317      arm)
1318        # We don't have any bigendian build tools so we only use this for ARM
1319        container_image=debian-armhf-cross
1320        container_cross_prefix=arm-linux-gnueabihf-
1321        ;;
1322      cris)
1323        container_image=fedora-cris-cross
1324        container_cross_prefix=cris-linux-gnu-
1325        ;;
1326      hexagon)
1327        container_image=debian-hexagon-cross
1328        container_cross_prefix=hexagon-unknown-linux-musl-
1329        container_cross_cc=${container_cross_prefix}clang
1330        ;;
1331      hppa)
1332        container_image=debian-hppa-cross
1333        container_cross_prefix=hppa-linux-gnu-
1334        ;;
1335      i386)
1336        container_image=fedora-i386-cross
1337        container_cross_prefix=
1338        ;;
1339      loongarch64)
1340        container_image=debian-loongarch-cross
1341        container_cross_prefix=loongarch64-unknown-linux-gnu-
1342        ;;
1343      m68k)
1344        container_image=debian-m68k-cross
1345        container_cross_prefix=m68k-linux-gnu-
1346        ;;
1347      microblaze)
1348        container_image=debian-microblaze-cross
1349        container_cross_prefix=microblaze-linux-musl-
1350        ;;
1351      mips64el)
1352        container_image=debian-mips64el-cross
1353        container_cross_prefix=mips64el-linux-gnuabi64-
1354        ;;
1355      mips64)
1356        container_image=debian-mips64-cross
1357        container_cross_prefix=mips64-linux-gnuabi64-
1358        ;;
1359      mipsel)
1360        container_image=debian-mipsel-cross
1361        container_cross_prefix=mipsel-linux-gnu-
1362        ;;
1363      mips)
1364        container_image=debian-mips-cross
1365        container_cross_prefix=mips-linux-gnu-
1366        ;;
1367      nios2)
1368        container_image=debian-nios2-cross
1369        container_cross_prefix=nios2-linux-gnu-
1370        ;;
1371      ppc)
1372        container_image=debian-powerpc-test-cross
1373        container_cross_prefix=powerpc-linux-gnu-
1374        container_cross_cc=${container_cross_prefix}gcc
1375        ;;
1376      ppc64|ppc64le)
1377        container_image=debian-powerpc-test-cross
1378        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1379        container_cross_cc=${container_cross_prefix}gcc-10
1380        ;;
1381      riscv64)
1382        container_image=debian-riscv64-test-cross
1383        container_cross_prefix=riscv64-linux-gnu-
1384        ;;
1385      s390x)
1386        container_image=debian-s390x-cross
1387        container_cross_prefix=s390x-linux-gnu-
1388        ;;
1389      sh4)
1390        container_image=debian-sh4-cross
1391        container_cross_prefix=sh4-linux-gnu-
1392        ;;
1393      sparc64)
1394        container_image=debian-sparc64-cross
1395        container_cross_prefix=sparc64-linux-gnu-
1396        ;;
1397      tricore)
1398        container_image=debian-tricore-cross
1399        container_cross_prefix=tricore-
1400        ;;
1401      x86_64)
1402        container_image=debian-amd64-cross
1403        container_cross_prefix=x86_64-linux-gnu-
1404        ;;
1405      xtensa*)
1406        container_image=debian-xtensa-cross
1407
1408        # default to the dc232b cpu
1409        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1410        ;;
1411    esac
1412    : ${container_cross_cc:=${container_cross_prefix}gcc}
1413    : ${container_cross_ar:=${container_cross_prefix}ar}
1414    : ${container_cross_as:=${container_cross_prefix}as}
1415    : ${container_cross_ld:=${container_cross_prefix}ld}
1416    : ${container_cross_nm:=${container_cross_prefix}nm}
1417    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1418    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1419    : ${container_cross_strip:=${container_cross_prefix}strip}
1420  done
1421
1422  try=cross
1423  case "$target_arch:$cpu" in
1424    aarch64_be:aarch64 | \
1425    armeb:arm | \
1426    i386:x86_64 | \
1427    mips*:mips64 | \
1428    ppc*:ppc64 | \
1429    sparc:sparc64 | \
1430    "$cpu:$cpu")
1431      try='native cross' ;;
1432  esac
1433  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1434  for thistry in $try; do
1435    case $thistry in
1436    native)
1437      target_cc=$cc
1438      target_ccas=$ccas
1439      target_ar=$ar
1440      target_as=$as
1441      target_ld=$ld
1442      target_nm=$nm
1443      target_objcopy=$objcopy
1444      target_ranlib=$ranlib
1445      target_strip=$strip
1446      ;;
1447    cross)
1448      target_cc=
1449      if eval test -n "\"\${cross_cc_$target_arch}\""; then
1450        if eval has "\"\${cross_cc_$target_arch}\""; then
1451          eval "target_cc=\"\${cross_cc_$target_arch}\""
1452        fi
1453      else
1454        compute_target_variable $target_arch target_cc gcc
1455      fi
1456      target_ccas=$target_cc
1457      compute_target_variable $target_arch target_ar ar
1458      compute_target_variable $target_arch target_as as
1459      compute_target_variable $target_arch target_ld ld
1460      compute_target_variable $target_arch target_nm nm
1461      compute_target_variable $target_arch target_objcopy objcopy
1462      compute_target_variable $target_arch target_ranlib ranlib
1463      compute_target_variable $target_arch target_strip strip
1464      ;;
1465    esac
1466
1467    if test -n "$target_cc"; then
1468      case $target_arch in
1469        i386|x86_64)
1470          if $target_cc --version | grep -qi "clang"; then
1471            continue
1472          fi
1473          ;;
1474      esac
1475    elif test -n "$target_as" && test -n "$target_ld"; then
1476      # Special handling for assembler only targets
1477      case $target in
1478        tricore-softmmu)
1479          build_static=
1480          got_cross_cc=yes
1481          break
1482          ;;
1483        *)
1484          continue
1485          ;;
1486      esac
1487    else
1488      continue
1489    fi
1490
1491    write_c_skeleton
1492    case $1 in
1493      *-softmmu)
1494        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1495          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1496          got_cross_cc=yes
1497          break
1498        fi
1499        ;;
1500      *)
1501        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1502          build_static=y
1503          got_cross_cc=yes
1504          break
1505        fi
1506        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1507          build_static=
1508          got_cross_cc=yes
1509          break
1510        fi
1511        ;;
1512    esac
1513  done
1514  if test $got_cross_cc != yes; then
1515    build_static=
1516    target_cc=
1517    target_ccas=
1518    target_ar=
1519    target_as=
1520    target_ld=
1521    target_nm=
1522    target_objcopy=
1523    target_ranlib=
1524    target_strip=
1525  fi
1526  test -n "$target_cc"
1527}
1528
1529write_target_makefile() {
1530  echo "EXTRA_CFLAGS=$target_cflags"
1531  if test -z "$target_cc" && test -z "$target_as"; then
1532    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1533    echo "$1: docker-image-$container_image" >> Makefile.prereqs
1534    if test -n "$container_cross_cc"; then
1535      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1536      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1537    fi
1538    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1539    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1540    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1541    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1542    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1543    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1544    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1545  else
1546    if test -n "$target_cc"; then
1547      echo "CC=$target_cc"
1548      echo "CCAS=$target_ccas"
1549    fi
1550    if test -n "$target_ar"; then
1551      echo "AR=$target_ar"
1552    fi
1553    if test -n "$target_as"; then
1554      echo "AS=$target_as"
1555    fi
1556    if test -n "$target_ld"; then
1557      echo "LD=$target_ld"
1558    fi
1559    if test -n "$target_nm"; then
1560      echo "NM=$target_nm"
1561    fi
1562    if test -n "$target_objcopy"; then
1563      echo "OBJCOPY=$target_objcopy"
1564    fi
1565    if test -n "$target_ranlib"; then
1566      echo "RANLIB=$target_ranlib"
1567    fi
1568    if test -n "$target_strip"; then
1569      echo "STRIP=$target_strip"
1570    fi
1571  fi
1572}
1573
1574#######################################
1575# cross-compiled firmware targets
1576
1577# Set up build tree symlinks that point back into the source tree
1578# (these can be both files and directories).
1579# Caution: avoid adding files or directories here using wildcards. This
1580# will result in problems later if a new file matching the wildcard is
1581# added to the source tree -- nothing will cause configure to be rerun
1582# so the build tree will be missing the link back to the new file, and
1583# tests might fail. Prefer to keep the relevant files in their own
1584# directory and symlink the directory instead.
1585LINKS="Makefile"
1586LINKS="$LINKS docs/config"
1587LINKS="$LINKS pc-bios/optionrom/Makefile"
1588LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1589LINKS="$LINKS pc-bios/vof/Makefile"
1590LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1591LINKS="$LINKS tests/avocado tests/data"
1592LINKS="$LINKS tests/qemu-iotests/check"
1593LINKS="$LINKS python"
1594LINKS="$LINKS contrib/plugins/Makefile "
1595for f in $LINKS ; do
1596    if [ -e "$source_path/$f" ]; then
1597        symlink "$source_path/$f" "$f"
1598    fi
1599done
1600
1601echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1602
1603# Mac OS X ships with a broken assembler
1604if have_target i386-softmmu x86_64-softmmu && \
1605        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1606        test "$targetos" != "haiku" && \
1607        probe_target_compiler i386-softmmu; then
1608    subdirs="$subdirs pc-bios/optionrom"
1609    config_mak=pc-bios/optionrom/config.mak
1610    echo "# Automatically generated by configure - do not modify" > $config_mak
1611    echo "TOPSRC_DIR=$source_path" >> $config_mak
1612    write_target_makefile >> $config_mak
1613fi
1614
1615if have_target ppc-softmmu ppc64-softmmu && \
1616        probe_target_compiler ppc-softmmu; then
1617    subdirs="$subdirs pc-bios/vof"
1618    config_mak=pc-bios/vof/config.mak
1619    echo "# Automatically generated by configure - do not modify" > $config_mak
1620    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1621    write_target_makefile >> $config_mak
1622fi
1623
1624# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1625# (which is the lowest architecture level that Clang supports)
1626if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1627    GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1628  write_c_skeleton
1629  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1630  has_z900=$?
1631  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1632    if [ $has_z900 != 0 ]; then
1633      echo "WARNING: Your compiler does not support the z900!"
1634      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1635    fi
1636    subdirs="$subdirs pc-bios/s390-ccw"
1637    config_mak=pc-bios/s390-ccw/config-host.mak
1638    echo "# Automatically generated by configure - do not modify" > $config_mak
1639    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1640    echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1641    write_target_makefile >> $config_mak
1642  fi
1643fi
1644
1645#######################################
1646# generate config-host.mak
1647
1648config_host_mak="config-host.mak"
1649
1650echo "# Automatically generated by configure - do not modify" > $config_host_mak
1651echo >> $config_host_mak
1652
1653echo all: >> $config_host_mak
1654
1655if test "$targetos" = "windows"; then
1656  echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
1657  echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
1658  echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
1659fi
1660
1661echo "SRC_PATH=$source_path" >> $config_host_mak
1662echo "TARGET_DIRS=$target_list" >> $config_host_mak
1663
1664if test -n "$gdb_bin"; then
1665    gdb_version=$($gdb_bin --version | head -n 1)
1666    if version_ge ${gdb_version##* } 9.1; then
1667        echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1668        gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1669    else
1670        gdb_bin=""
1671    fi
1672fi
1673
1674if test "$container" != no; then
1675    echo "RUNC=$runc" >> $config_host_mak
1676fi
1677echo "SUBDIRS=$subdirs" >> $config_host_mak
1678echo "PYTHON=$python" >> $config_host_mak
1679echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1680echo "MESON=$meson" >> $config_host_mak
1681echo "NINJA=$ninja" >> $config_host_mak
1682echo "EXESUF=$EXESUF" >> $config_host_mak
1683
1684# use included Linux headers for KVM architectures
1685if test "$targetos" = "linux" && test -n "$linux_arch"; then
1686  symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1687fi
1688
1689for target in $target_list; do
1690    target_dir="$target"
1691    target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1692    case $target in
1693        *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1694        *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1695    esac
1696done
1697
1698if test "$default_targets" = "yes"; then
1699  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1700fi
1701
1702# contrib/plugins configuration
1703echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1704echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1705echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1706echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1707echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1708if test "$targetos" = darwin; then
1709  echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1710fi
1711
1712# tests/tcg configuration
1713(config_host_mak=tests/tcg/config-host.mak
1714mkdir -p tests/tcg
1715echo "# Automatically generated by configure - do not modify" > $config_host_mak
1716echo "SRC_PATH=$source_path" >> $config_host_mak
1717
1718# versioned checked in the main config_host.mak above
1719if test -n "$gdb_bin"; then
1720    echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1721fi
1722if test "$plugins" = "yes" ; then
1723    echo "CONFIG_PLUGIN=y" >> $config_host_mak
1724fi
1725
1726tcg_tests_targets=
1727for target in $target_list; do
1728  arch=${target%%-*}
1729
1730  case $target in
1731    xtensa*-linux-user)
1732      # the toolchain is not complete with headers, only build system tests
1733      continue
1734      ;;
1735    *-softmmu)
1736      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1737      qemu="qemu-system-$arch"
1738      ;;
1739    *-linux-user|*-bsd-user)
1740      qemu="qemu-$arch"
1741      ;;
1742  esac
1743
1744  if probe_target_compiler $target || test -n "$container_image"; then
1745      test -n "$container_image" && build_static=y
1746      mkdir -p "tests/tcg/$target"
1747      config_target_mak=tests/tcg/$target/config-target.mak
1748      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1749      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1750      echo "TARGET_NAME=$arch" >> "$config_target_mak"
1751      echo "TARGET=$target" >> "$config_target_mak"
1752      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1753      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1754      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1755
1756      # will GDB work with these binaries?
1757      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1758          echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
1759      fi
1760
1761      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1762      tcg_tests_targets="$tcg_tests_targets $target"
1763  fi
1764done
1765
1766if test "$tcg" = "enabled"; then
1767    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1768fi
1769)
1770
1771if test "$skip_meson" = no; then
1772  cross="config-meson.cross.new"
1773  meson_quote() {
1774    test $# = 0 && return
1775    echo "'$(echo $* | sed "s/ /','/g")'"
1776  }
1777
1778  echo "# Automatically generated by configure - do not modify" > $cross
1779  echo "[properties]" >> $cross
1780
1781  # unroll any custom device configs
1782  for a in $device_archs; do
1783      eval "c=\$devices_${a}"
1784      echo "${a}-softmmu = '$c'" >> $cross
1785  done
1786
1787  echo "[built-in options]" >> $cross
1788  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1789  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1790  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1791  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1792  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1793  echo "[binaries]" >> $cross
1794  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1795  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1796  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1797  echo "ar = [$(meson_quote $ar)]" >> $cross
1798  echo "nm = [$(meson_quote $nm)]" >> $cross
1799  echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1800  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1801  if has $sdl2_config; then
1802    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1803  fi
1804  echo "strip = [$(meson_quote $strip)]" >> $cross
1805  echo "widl = [$(meson_quote $widl)]" >> $cross
1806  echo "windres = [$(meson_quote $windres)]" >> $cross
1807  echo "windmc = [$(meson_quote $windmc)]" >> $cross
1808  if test "$cross_compile" = "yes"; then
1809    echo "[host_machine]" >> $cross
1810    echo "system = '$targetos'" >> $cross
1811    case "$cpu" in
1812        i386)
1813            echo "cpu_family = 'x86'" >> $cross
1814            ;;
1815        *)
1816            echo "cpu_family = '$cpu'" >> $cross
1817            ;;
1818    esac
1819    echo "cpu = '$cpu'" >> $cross
1820    if test "$bigendian" = "yes" ; then
1821        echo "endian = 'big'" >> $cross
1822    else
1823        echo "endian = 'little'" >> $cross
1824    fi
1825    cross_arg="--cross-file config-meson.cross"
1826
1827    native="config-meson.native.new"
1828    echo "# Automatically generated by configure - do not modify" > $native
1829    echo "[binaries]" >> $native
1830    echo "c = [$(meson_quote $host_cc)]" >> $native
1831    mv $native config-meson.native
1832    cross_arg="$cross_arg --native-file config-meson.native"
1833  else
1834    cross_arg="--native-file config-meson.cross"
1835  fi
1836  mv $cross config-meson.cross
1837
1838  rm -rf meson-private meson-info meson-logs
1839
1840  # Built-in options
1841  test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1842  test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
1843  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1844  test "$static" = yes && meson_option_add -Dprefer_static=true
1845  test "$pie" = no && meson_option_add -Db_pie=false
1846  test "$werror" = yes && meson_option_add -Dwerror=true
1847
1848  # QEMU options
1849  test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
1850  test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1851  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1852  test "$plugins" = yes && meson_option_add "-Dplugins=true"
1853  test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
1854  test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
1855  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1856  run_meson() {
1857    NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
1858  }
1859  eval run_meson $meson_options
1860  if test "$?" -ne 0 ; then
1861      error_exit "meson setup failed"
1862  fi
1863  echo "$meson" > build.ninja.stamp
1864else
1865  if test -f meson-private/cmd_line.txt; then
1866    # Adjust old command line options that were removed
1867    # sed -i is not portable
1868    perl -i -ne '
1869      /^sphinx_build/ && next;
1870      print;' meson-private/cmd_line.txt
1871  fi
1872fi
1873
1874# Save the configure command line for later reuse.
1875cat <<EOD >config.status
1876#!/bin/sh
1877# Generated by configure.
1878# Run this file to recreate the current configuration.
1879# Compiler output produced by configure, useful for debugging
1880# configure, is in config.log if it exists.
1881EOD
1882
1883preserve_env() {
1884    envname=$1
1885
1886    eval envval=\$$envname
1887
1888    if test -n "$envval"
1889    then
1890	echo "$envname='$envval'" >> config.status
1891	echo "export $envname" >> config.status
1892    else
1893	echo "unset $envname" >> config.status
1894    fi
1895}
1896
1897# Preserve various env variables that influence what
1898# features/build target configure will detect
1899preserve_env AR
1900preserve_env AS
1901preserve_env CC
1902preserve_env CFLAGS
1903preserve_env CXX
1904preserve_env CXXFLAGS
1905preserve_env LD
1906preserve_env LDFLAGS
1907preserve_env LD_LIBRARY_PATH
1908preserve_env NM
1909preserve_env OBJCFLAGS
1910preserve_env OBJCOPY
1911preserve_env PATH
1912preserve_env PKG_CONFIG
1913preserve_env PKG_CONFIG_LIBDIR
1914preserve_env PKG_CONFIG_PATH
1915preserve_env PYTHON
1916preserve_env QEMU_GA_MANUFACTURER
1917preserve_env QEMU_GA_DISTRO
1918preserve_env QEMU_GA_VERSION
1919preserve_env SDL2_CONFIG
1920preserve_env SMBD
1921preserve_env STRIP
1922preserve_env WIDL
1923preserve_env WINDRES
1924preserve_env WINDMC
1925
1926printf "exec" >>config.status
1927for i in "$0" "$@"; do
1928  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1929done
1930echo ' "$@"' >>config.status
1931chmod +x config.status
1932
1933rm -r "$TMPDIR1"
1934