xref: /openbmc/qemu/configure (revision ee48fef0) 
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 > $TMPC <<EOF
332int main(void) { return 0; }
333EOF
334}
335
336if check_define __linux__ ; then
337  host_os=linux
338elif check_define _WIN32 ; then
339  host_os=windows
340elif check_define __OpenBSD__ ; then
341  host_os=openbsd
342elif check_define __sun__ ; then
343  host_os=sunos
344elif check_define __HAIKU__ ; then
345  host_os=haiku
346elif check_define __FreeBSD__ ; then
347  host_os=freebsd
348elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
349  host_os=gnu/kfreebsd
350elif check_define __DragonFly__ ; then
351  host_os=dragonfly
352elif check_define __NetBSD__; then
353  host_os=netbsd
354elif check_define __APPLE__; then
355  host_os=darwin
356else
357  # This is a fatal error, but don't report it yet, because we
358  # might be going to just print the --help text, or it might
359  # be the result of a missing compiler.
360  host_os=bogus
361fi
362
363if test ! -z "$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=$(uname -m)
414  if test "$host_os" != "bogus"; then
415    echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
416  fi
417fi
418
419# Normalise host CPU name to the values used by Meson cross files and in source
420# directories, and set multilib cflags.  The canonicalization isn't really
421# necessary, because the architectures that we check for should not hit the
422# 'uname -m' case, but better safe than sorry in case --cpu= is used.
423#
424# Note that this case should only have supported host CPUs, not guests.
425# Please keep it sorted and synchronized with meson.build's host_arch.
426host_arch=
427linux_arch=
428case "$cpu" in
429  aarch64)
430    host_arch=aarch64
431    linux_arch=arm64
432    ;;
433
434  armv*b|armv*l|arm)
435    cpu=arm
436    host_arch=arm
437    linux_arch=arm
438    ;;
439
440  i386|i486|i586|i686)
441    cpu="i386"
442    host_arch=i386
443    linux_arch=x86
444    CPU_CFLAGS="-m32"
445    ;;
446
447  loongarch*)
448    cpu=loongarch64
449    host_arch=loongarch64
450    linux_arch=loongarch
451    ;;
452
453  mips64*)
454    cpu=mips64
455    host_arch=mips
456    linux_arch=mips
457    ;;
458  mips*)
459    cpu=mips
460    host_arch=mips
461    linux_arch=mips
462    ;;
463
464  ppc)
465    host_arch=ppc
466    linux_arch=powerpc
467    CPU_CFLAGS="-m32"
468    ;;
469  ppc64)
470    host_arch=ppc64
471    linux_arch=powerpc
472    CPU_CFLAGS="-m64 -mbig-endian"
473    ;;
474  ppc64le)
475    cpu=ppc64
476    host_arch=ppc64
477    linux_arch=powerpc
478    CPU_CFLAGS="-m64 -mlittle-endian"
479    ;;
480
481  riscv32 | riscv64)
482    host_arch=riscv
483    linux_arch=riscv
484    ;;
485
486  s390)
487    linux_arch=s390
488    CPU_CFLAGS="-m31"
489    ;;
490  s390x)
491    host_arch=s390x
492    linux_arch=s390
493    CPU_CFLAGS="-m64"
494    ;;
495
496  sparc|sun4[cdmuv])
497    cpu=sparc
498    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
499    ;;
500  sparc64)
501    host_arch=sparc64
502    CPU_CFLAGS="-m64 -mcpu=ultrasparc"
503    ;;
504
505  x32)
506    cpu="x86_64"
507    host_arch=x86_64
508    linux_arch=x86
509    CPU_CFLAGS="-mx32"
510    ;;
511  x86_64|amd64)
512    cpu="x86_64"
513    host_arch=x86_64
514    linux_arch=x86
515    CPU_CFLAGS="-m64"
516    ;;
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 "$binary")
572        break
573    fi
574done
575
576if test "$host_os" = "windows" ; then
577  EXESUF=".exe"
578fi
579
580meson_option_build_array() {
581  printf '['
582  (if test "$host_os" = windows; then
583    IFS=\;
584  else
585    IFS=:
586  fi
587  for e in $1; do
588    printf '"""'
589    # backslash escape any '\' and '"' characters
590    printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
591    printf '""",'
592  done)
593  printf ']\n'
594}
595
596. "$source_path/scripts/meson-buildoptions.sh"
597
598meson_options=
599meson_option_add() {
600  local arg
601  for arg; do
602    meson_options="$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" "$optarg"
762  ;;
763  # Pass through -Dxxxx options to meson
764  -D*) meson_option_add "$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 [ "$host_os" = linux ]; then
806            linux_user=yes
807        elif [ "$linux_user" = yes ]; then
808            error_exit "linux-user not supported on this architecture"
809        fi
810        if [ "$linux_user" = "yes" ]; then
811            mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
812        fi
813    fi
814    if [ "$bsd_user" != no ]; then
815        if [ "$bsd_user" = "" ]; then
816            test $host_os = freebsd && bsd_user=yes
817        fi
818        if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$host_os" ]; then
819            error_exit "bsd-user not supported on this host OS"
820        fi
821        if [ "$bsd_user" = "yes" ]; then
822            mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
823        fi
824    fi
825else
826    if [ "$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# Now that we are sure that the user did not only want to print the --help
897# information, we should double-check that the C compiler really works:
898write_c_skeleton
899if ! compile_object ; then
900    error_exit "C compiler \"$cc\" either does not exist or does not work."
901fi
902
903# Remove old dependency files to make sure that they get properly regenerated
904rm -f ./*/config-devices.mak.d
905
906if test -z "$python"
907then
908    # If first_python is set, there was a binary somewhere even though
909    # it was not suitable.  Use it for the error message.
910    if test -n "$first_python"; then
911        error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
912            "Use --python=/path/to/python to specify a supported Python."
913    else
914        error_exit "Python not found. Use --python=/path/to/python"
915    fi
916fi
917
918if ! check_py_version "$python"; then
919  error_exit "Cannot use '$python', Python >= 3.8 is required." \
920             "Use --python=/path/to/python to specify a supported Python." \
921             "Maybe try:" \
922             "  openSUSE Leap 15.3+: zypper install python39" \
923             "  CentOS 8: dnf install python38"
924fi
925
926# Resolve PATH
927python="$(command -v "$python")"
928
929# Create a Python virtual environment using our configured python.
930# The stdout of this script will be the location of a symlink that
931# points to the configured Python.
932# Entry point scripts for pip, meson, and sphinx are generated if those
933# packages are present.
934
935# Defaults assumed for now:
936# - venv is cleared if it exists already;
937# - venv is allowed to use system packages;
938# - all setup can be performed offline;
939# - missing packages may be fetched from PyPI,
940#   unless --disable-download is passed.
941# - pip is not installed into the venv when possible,
942#   but ensurepip is called as a fallback when necessary.
943
944echo "python determined to be '$python'"
945echo "python version: $($python --version)"
946
947python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
948if test "$?" -ne 0 ; then
949    error_exit "python venv creation failed"
950fi
951
952# Suppress writing compiled files
953python="$python -B"
954mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
955
956# Finish preparing the virtual environment using vendored .whl files
957
958$mkvenv ensuregroup --dir "${source_path}/python/wheels" \
959     ${source_path}/pythondeps.toml meson || exit 1
960
961# At this point, we expect Meson to be installed and available.
962# We expect mkvenv or pip to have created pyvenv/bin/meson for us.
963# We ignore PATH completely here: we want to use the venv's Meson
964# *exclusively*.
965
966meson="$(cd pyvenv/bin; pwd)/meson"
967
968# Conditionally ensure Sphinx is installed.
969
970mkvenv_online_flag=""
971if test "$download" = "enabled" ; then
972    mkvenv_online_flag=" --online"
973fi
974
975if test "$docs" != "disabled" ; then
976    if ! $mkvenv ensuregroup \
977         $(test "$docs" = "enabled" && echo "$mkvenv_online_flag") \
978         ${source_path}/pythondeps.toml docs;
979    then
980        if test "$docs" = "enabled" ; then
981            exit 1
982        fi
983        echo "Sphinx not found/usable, disabling docs."
984        docs=disabled
985    else
986        docs=enabled
987    fi
988fi
989
990# Probe for ninja
991
992if test -z "$ninja"; then
993    for c in ninja ninja-build samu; do
994        if has $c; then
995            ninja=$(command -v "$c")
996            break
997        fi
998    done
999    if test -z "$ninja"; then
1000      error_exit "Cannot find Ninja"
1001    fi
1002fi
1003
1004if test "$host_os" = "bogus"; then
1005    # Now that we know that we're not printing the help and that
1006    # the compiler works (so the results of the check_defines we used
1007    # to identify the OS are reliable), if we didn't recognize the
1008    # host OS we should stop now.
1009    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1010fi
1011
1012# test for any invalid configuration combinations
1013if test "$host_os" = "windows" && ! has "$dlltool"; then
1014  if test "$plugins" = "yes"; then
1015    error_exit "TCG plugins requires dlltool to build on Windows platforms"
1016  fi
1017  plugins="no"
1018fi
1019if test "$tcg" = "disabled" ; then
1020  if test "$plugins" = "yes"; then
1021    error_exit "Can't enable plugins on non-TCG builds"
1022  fi
1023  plugins="no"
1024fi
1025if test "$static" = "yes" ; then
1026  if test "$plugins" = "yes"; then
1027    error_exit "static and plugins are mutually incompatible"
1028  fi
1029  plugins="no"
1030fi
1031if test "$plugins" != "no"; then
1032  plugins=yes
1033  subdirs="$subdirs contrib/plugins"
1034fi
1035
1036cat > $TMPC << EOF
1037
1038#ifdef __linux__
1039#  define THREAD __thread
1040#else
1041#  define THREAD
1042#endif
1043static THREAD int tls_var;
1044int main(void) { return tls_var; }
1045EOF
1046
1047if test "$host_os" = windows || test "$host_os" = haiku; then
1048  if test "$pie" = "yes"; then
1049    error_exit "PIE not available due to missing OS support"
1050  fi
1051  pie=no
1052fi
1053
1054if test "$pie" != "no"; then
1055  if test "$static" = "yes"; then
1056    pie_ldflags=-static-pie
1057  else
1058    pie_ldflags=-pie
1059  fi
1060  if compile_prog "-Werror -fPIE -DPIE" "$pie_ldflags"; then
1061    pie="yes"
1062  elif test "$pie" = "yes"; then
1063    error_exit "-static-pie not available due to missing toolchain support"
1064  else
1065    echo "Disabling PIE due to missing toolchain support"
1066    pie="no"
1067  fi
1068fi
1069
1070##########################################
1071
1072if test -z "${target_list+xxx}" ; then
1073    default_targets=yes
1074    for target in $default_target_list; do
1075        target_list="$target_list $target"
1076    done
1077    target_list="${target_list# }"
1078else
1079    default_targets=no
1080    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1081    for target in $target_list; do
1082        # Check that we recognised the target name; this allows a more
1083        # friendly error message than if we let it fall through.
1084        case " $default_target_list " in
1085            *" $target "*)
1086                ;;
1087            *)
1088                error_exit "Unknown target name '$target'"
1089                ;;
1090        esac
1091    done
1092fi
1093
1094if test "$tcg" = "auto"; then
1095  if test -z "$target_list"; then
1096    tcg="disabled"
1097  else
1098    tcg="enabled"
1099  fi
1100fi
1101
1102#########################################
1103# gdb test
1104
1105if test -n "$gdb_bin"; then
1106    gdb_version=$($gdb_bin --version | head -n 1)
1107    if version_ge ${gdb_version##* } 9.1; then
1108        gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1109    else
1110        gdb_bin=""
1111    fi
1112fi
1113
1114##########################################
1115# big/little endian test
1116cat > $TMPC << EOF
1117#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1118# error LITTLE
1119#endif
1120int main(void) { return 0; }
1121EOF
1122
1123if ! compile_prog ; then
1124  bigendian="no"
1125else
1126  cat > $TMPC << EOF
1127#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1128# error BIG
1129#endif
1130int main(void) { return 0; }
1131EOF
1132
1133  if ! compile_prog ; then
1134    bigendian="yes"
1135  else
1136    echo big/little test failed
1137    exit 1
1138  fi
1139fi
1140
1141##########################################
1142# functions to probe cross compilers
1143
1144container="no"
1145runc=""
1146if test $use_containers = "yes" && (has "docker" || has "podman"); then
1147    case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1148        *docker) container=docker ;;
1149        podman) container=podman ;;
1150        no) container=no ;;
1151    esac
1152    if test "$container" != "no"; then
1153        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1154        runc=$container
1155    fi
1156fi
1157
1158# cross compilers defaults, can be overridden with --cross-cc-ARCH
1159: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1160: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1161: ${cross_prefix_alpha="alpha-linux-gnu-"}
1162: ${cross_prefix_arm="arm-linux-gnueabihf-"}
1163: ${cross_prefix_armeb="$cross_prefix_arm"}
1164: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1165: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1166: ${cross_prefix_hppa="hppa-linux-gnu-"}
1167: ${cross_prefix_i386="i686-linux-gnu-"}
1168: ${cross_prefix_m68k="m68k-linux-gnu-"}
1169: ${cross_prefix_microblaze="microblaze-linux-musl-"}
1170: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1171: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1172: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1173: ${cross_prefix_mips="mips-linux-gnu-"}
1174: ${cross_prefix_ppc="powerpc-linux-gnu-"}
1175: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1176: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1177: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1178: ${cross_prefix_s390x="s390x-linux-gnu-"}
1179: ${cross_prefix_sh4="sh4-linux-gnu-"}
1180: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1181: ${cross_prefix_sparc="$cross_prefix_sparc64"}
1182: ${cross_prefix_tricore="tricore-"}
1183: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1184
1185: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1186: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1187: ${cross_cc_armeb="$cross_cc_arm"}
1188: ${cross_cc_cflags_armeb="-mbig-endian"}
1189: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1190: ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1191: ${cross_cc_cflags_i386="-m32"}
1192: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1193: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1194: ${cross_cc_ppc64le="$cross_cc_ppc64"}
1195: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1196: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1197: ${cross_cc_sparc="$cross_cc_sparc64"}
1198: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1199: ${cross_cc_cflags_x86_64="-m64 -mcx16"}
1200
1201compute_target_variable() {
1202  eval "$2="
1203  if eval test -n "\"\${cross_prefix_$1}\""; then
1204    if eval has "\"\${cross_prefix_$1}\$3\""; then
1205      eval "$2=\"\${cross_prefix_$1}\$3\""
1206    fi
1207  fi
1208}
1209
1210have_target() {
1211  for i; do
1212    case " $target_list " in
1213      *" $i "*) return 0;;
1214      *) ;;
1215    esac
1216  done
1217  return 1
1218}
1219
1220# probe_target_compiler TARGET
1221#
1222# Look for a compiler for the given target, either native or cross.
1223# Set variables target_* if a compiler is found, and container_cross_*
1224# if a Docker-based cross-compiler image is known for the target.
1225# Set got_cross_cc to yes/no depending on whether a non-container-based
1226# compiler was found.
1227#
1228# If TARGET is a user-mode emulation target, also set build_static to
1229# "y" if static linking is possible.
1230#
1231probe_target_compiler() {
1232  # reset all output variables
1233  got_cross_cc=no
1234  container_image=
1235  container_hosts=
1236  container_cross_prefix=
1237  container_cross_cc=
1238  container_cross_ar=
1239  container_cross_as=
1240  container_cross_ld=
1241  container_cross_nm=
1242  container_cross_objcopy=
1243  container_cross_ranlib=
1244  container_cross_strip=
1245
1246  target_arch=${1%%-*}
1247  case $target_arch in
1248    aarch64) container_hosts="x86_64 aarch64" ;;
1249    alpha) container_hosts=x86_64 ;;
1250    arm) container_hosts="x86_64 aarch64" ;;
1251    cris) container_hosts=x86_64 ;;
1252    hexagon) container_hosts=x86_64 ;;
1253    hppa) container_hosts=x86_64 ;;
1254    i386) container_hosts=x86_64 ;;
1255    loongarch64) container_hosts=x86_64 ;;
1256    m68k) container_hosts=x86_64 ;;
1257    microblaze) container_hosts=x86_64 ;;
1258    mips64el) container_hosts=x86_64 ;;
1259    mips64) container_hosts=x86_64 ;;
1260    mipsel) container_hosts=x86_64 ;;
1261    mips) container_hosts=x86_64 ;;
1262    ppc) container_hosts=x86_64 ;;
1263    ppc64|ppc64le) container_hosts=x86_64 ;;
1264    riscv64) container_hosts=x86_64 ;;
1265    s390x) container_hosts=x86_64 ;;
1266    sh4) container_hosts=x86_64 ;;
1267    sparc64) container_hosts=x86_64 ;;
1268    tricore) container_hosts=x86_64 ;;
1269    x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1270    xtensa*) container_hosts=x86_64 ;;
1271  esac
1272
1273  for host in $container_hosts; do
1274    test "$container" != no || continue
1275    test "$host" = "$cpu" || continue
1276    case $target_arch in
1277      # debian-all-test-cross architectures
1278
1279      hppa|m68k|mips|riscv64|sparc64)
1280        container_image=debian-all-test-cross
1281        ;;
1282      mips64)
1283        container_image=debian-all-test-cross
1284        container_cross_prefix=mips64-linux-gnuabi64-
1285        ;;
1286      ppc|ppc64|ppc64le)
1287        container_image=debian-all-test-cross
1288        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1289        ;;
1290
1291      # debian-legacy-test-cross architectures (need Debian 11)
1292      # - libc6.1-dev-alpha-cross: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054412
1293      # - sh4-linux-user: binaries don't run with bookworm compiler
1294
1295      alpha|sh4)
1296        container_image=debian-legacy-test-cross
1297        ;;
1298
1299      # architectures with individual containers
1300
1301      aarch64)
1302        # We don't have any bigendian build tools so we only use this for AArch64
1303        container_image=debian-arm64-cross
1304        ;;
1305      arm)
1306        # We don't have any bigendian build tools so we only use this for ARM
1307        container_image=debian-armhf-cross
1308        container_cross_prefix=arm-linux-gnueabihf-
1309        ;;
1310      cris)
1311        container_image=fedora-cris-cross
1312        ;;
1313      hexagon)
1314        container_cross_prefix=hexagon-unknown-linux-musl-
1315        container_cross_cc=${container_cross_prefix}clang
1316        ;;
1317      i386)
1318        container_image=debian-i686-cross
1319        container_cross_prefix=i686-linux-gnu-
1320        ;;
1321      loongarch64)
1322        container_image=debian-loongarch-cross
1323        container_cross_prefix=loongarch64-unknown-linux-gnu-
1324        ;;
1325      microblaze)
1326        container_cross_prefix=microblaze-linux-musl-
1327        ;;
1328      mips64el)
1329        container_image=debian-mips64el-cross
1330        container_cross_prefix=mips64el-linux-gnuabi64-
1331        ;;
1332      tricore)
1333        container_image=debian-tricore-cross
1334        container_cross_prefix=tricore-
1335        ;;
1336      x86_64)
1337        container_image=debian-amd64-cross
1338        ;;
1339      xtensa*)
1340        container_image=debian-xtensa-cross
1341
1342        # default to the dc232b cpu
1343        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1344        ;;
1345    esac
1346    # Debian and GNU architecture names usually match
1347    : ${container_image:=debian-$target_arch-cross}
1348    : ${container_cross_prefix:=$target_arch-linux-gnu-}
1349    : ${container_cross_cc:=${container_cross_prefix}gcc}
1350    : ${container_cross_ar:=${container_cross_prefix}ar}
1351    : ${container_cross_as:=${container_cross_prefix}as}
1352    : ${container_cross_ld:=${container_cross_prefix}ld}
1353    : ${container_cross_nm:=${container_cross_prefix}nm}
1354    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1355    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1356    : ${container_cross_strip:=${container_cross_prefix}strip}
1357  done
1358
1359  try=cross
1360  # For softmmu/roms also look for a bi-endian or multilib-enabled host compiler
1361  if [ "${1%softmmu}" != "$1" ] || test "$target_arch" = "$cpu"; then
1362      case "$target_arch:$cpu" in
1363        aarch64_be:aarch64 | \
1364        armeb:arm | \
1365        i386:x86_64 | \
1366        mips*:mips64 | \
1367        ppc*:ppc64 | \
1368        sparc:sparc64 | \
1369        "$cpu:$cpu")
1370        try='native cross' ;;
1371      esac
1372  fi
1373  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1374  for thistry in $try; do
1375    case $thistry in
1376    native)
1377      target_cc=$cc
1378      target_ccas=$ccas
1379      target_ar=$ar
1380      target_as=$as
1381      target_ld=$ld
1382      target_nm=$nm
1383      target_objcopy=$objcopy
1384      target_ranlib=$ranlib
1385      target_strip=$strip
1386      ;;
1387    cross)
1388      target_cc=
1389      if eval test -n "\"\${cross_cc_$target_arch}\""; then
1390        if eval has "\"\${cross_cc_$target_arch}\""; then
1391          eval "target_cc=\"\${cross_cc_$target_arch}\""
1392        fi
1393      else
1394        compute_target_variable $target_arch target_cc gcc
1395      fi
1396      target_ccas=$target_cc
1397      compute_target_variable $target_arch target_ar ar
1398      compute_target_variable $target_arch target_as as
1399      compute_target_variable $target_arch target_ld ld
1400      compute_target_variable $target_arch target_nm nm
1401      compute_target_variable $target_arch target_objcopy objcopy
1402      compute_target_variable $target_arch target_ranlib ranlib
1403      compute_target_variable $target_arch target_strip strip
1404      ;;
1405    esac
1406
1407    if test -n "$target_cc"; then
1408      case $target_arch in
1409        i386|x86_64)
1410          if $target_cc --version | grep -qi "clang"; then
1411            continue
1412          fi
1413          ;;
1414      esac
1415    elif test -n "$target_as" && test -n "$target_ld"; then
1416      # Special handling for assembler only targets
1417      case $target in
1418        tricore-softmmu)
1419          build_static=
1420          got_cross_cc=yes
1421          break
1422          ;;
1423        *)
1424          continue
1425          ;;
1426      esac
1427    else
1428      continue
1429    fi
1430
1431    write_c_skeleton
1432    case $1 in
1433      *-softmmu)
1434        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1435          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1436          got_cross_cc=yes
1437          break
1438        fi
1439        ;;
1440      *)
1441        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1442          build_static=y
1443          got_cross_cc=yes
1444          break
1445        fi
1446        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1447          build_static=
1448          got_cross_cc=yes
1449          break
1450        fi
1451        ;;
1452    esac
1453  done
1454  if test $got_cross_cc != yes; then
1455    build_static=
1456    target_cc=
1457    target_ccas=
1458    target_ar=
1459    target_as=
1460    target_ld=
1461    target_nm=
1462    target_objcopy=
1463    target_ranlib=
1464    target_strip=
1465  fi
1466  test -n "$target_cc"
1467}
1468
1469write_target_makefile() {
1470  echo "EXTRA_CFLAGS=$target_cflags"
1471  if test -z "$target_cc" && test -z "$target_as"; then
1472    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1473    echo "$1: docker-image-$container_image" >> Makefile.prereqs
1474    if test -n "$container_cross_cc"; then
1475      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1476      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1477    fi
1478    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1479    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1480    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1481    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1482    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1483    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1484    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1485  else
1486    if test -n "$target_cc"; then
1487      echo "CC=$target_cc"
1488      echo "CCAS=$target_ccas"
1489    fi
1490    if test -n "$target_ar"; then
1491      echo "AR=$target_ar"
1492    fi
1493    if test -n "$target_as"; then
1494      echo "AS=$target_as"
1495    fi
1496    if test -n "$target_ld"; then
1497      echo "LD=$target_ld"
1498    fi
1499    if test -n "$target_nm"; then
1500      echo "NM=$target_nm"
1501    fi
1502    if test -n "$target_objcopy"; then
1503      echo "OBJCOPY=$target_objcopy"
1504    fi
1505    if test -n "$target_ranlib"; then
1506      echo "RANLIB=$target_ranlib"
1507    fi
1508    if test -n "$target_strip"; then
1509      echo "STRIP=$target_strip"
1510    fi
1511  fi
1512}
1513
1514#######################################
1515# cross-compiled firmware targets
1516
1517# Set up build tree symlinks that point back into the source tree
1518# (these can be both files and directories).
1519# Caution: avoid adding files or directories here using wildcards. This
1520# will result in problems later if a new file matching the wildcard is
1521# added to the source tree -- nothing will cause configure to be rerun
1522# so the build tree will be missing the link back to the new file, and
1523# tests might fail. Prefer to keep the relevant files in their own
1524# directory and symlink the directory instead.
1525LINKS="Makefile"
1526LINKS="$LINKS docs/config"
1527LINKS="$LINKS pc-bios/optionrom/Makefile"
1528LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1529LINKS="$LINKS pc-bios/vof/Makefile"
1530LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1531LINKS="$LINKS tests/avocado tests/data"
1532LINKS="$LINKS tests/qemu-iotests/check tests/qemu-iotests/Makefile"
1533LINKS="$LINKS python"
1534LINKS="$LINKS contrib/plugins/Makefile "
1535for f in $LINKS ; do
1536    if [ -e "$source_path/$f" ]; then
1537        symlink "$source_path/$f" "$f"
1538    fi
1539done
1540
1541# use included Linux headers for KVM architectures
1542if test "$host_os" = "linux" && test -n "$linux_arch"; then
1543  symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1544fi
1545
1546echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1547
1548# Mac OS X ships with a broken assembler
1549if have_target i386-softmmu x86_64-softmmu && \
1550        test "$host_os" != "darwin" && test "$host_os" != "sunos" && \
1551        test "$host_os" != "haiku" && \
1552        probe_target_compiler i386-softmmu; then
1553    subdirs="$subdirs pc-bios/optionrom"
1554    config_mak=pc-bios/optionrom/config.mak
1555    echo "# Automatically generated by configure - do not modify" > $config_mak
1556    echo "TOPSRC_DIR=$source_path" >> $config_mak
1557    write_target_makefile >> $config_mak
1558fi
1559
1560if have_target ppc-softmmu ppc64-softmmu && \
1561        probe_target_compiler ppc-softmmu; then
1562    subdirs="$subdirs pc-bios/vof"
1563    config_mak=pc-bios/vof/config.mak
1564    echo "# Automatically generated by configure - do not modify" > $config_mak
1565    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1566    write_target_makefile >> $config_mak
1567fi
1568
1569# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1570# (which is the lowest architecture level that Clang supports)
1571if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1572    GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1573  write_c_skeleton
1574  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1575  has_z900=$?
1576  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1577    if [ $has_z900 != 0 ]; then
1578      echo "WARNING: Your compiler does not support the z900!"
1579      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1580    fi
1581    subdirs="$subdirs pc-bios/s390-ccw"
1582    config_mak=pc-bios/s390-ccw/config-host.mak
1583    echo "# Automatically generated by configure - do not modify" > $config_mak
1584    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1585    echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1586    write_target_makefile >> $config_mak
1587  fi
1588fi
1589
1590#######################################
1591# generate config-host.mak
1592
1593config_host_mak="config-host.mak"
1594
1595echo "# Automatically generated by configure - do not modify" > $config_host_mak
1596echo >> $config_host_mak
1597
1598echo all: >> $config_host_mak
1599
1600echo "SRC_PATH=$source_path" >> $config_host_mak
1601echo "TARGET_DIRS=$target_list" >> $config_host_mak
1602echo "GDB=$gdb_bin" >> $config_host_mak
1603if test "$container" != no; then
1604    echo "RUNC=$runc" >> $config_host_mak
1605fi
1606echo "SUBDIRS=$subdirs" >> $config_host_mak
1607echo "PYTHON=$python" >> $config_host_mak
1608echo "MKVENV_ENSUREGROUP=$mkvenv ensuregroup $mkvenv_online_flag" >> $config_host_mak
1609echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1610echo "MESON=$meson" >> $config_host_mak
1611echo "NINJA=$ninja" >> $config_host_mak
1612echo "EXESUF=$EXESUF" >> $config_host_mak
1613if test "$default_targets" = "yes"; then
1614  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1615fi
1616
1617# contrib/plugins configuration
1618echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1619echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1620echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1621echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1622echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1623if test "$host_os" = windows; then
1624  echo "DLLTOOL=$dlltool" >> contrib/plugins/$config_host_mak
1625fi
1626if test "$host_os" = darwin; then
1627  echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1628fi
1629if test "$host_os" = windows; then
1630  echo "CONFIG_WIN32=y" >> contrib/plugins/$config_host_mak
1631fi
1632
1633# tests/tcg configuration
1634mkdir -p tests/tcg
1635echo "# Automatically generated by configure - do not modify" > tests/tcg/$config_host_mak
1636echo "SRC_PATH=$source_path" >> tests/tcg/$config_host_mak
1637if test "$plugins" = "yes" ; then
1638    echo "CONFIG_PLUGIN=y" >> tests/tcg/$config_host_mak
1639fi
1640
1641tcg_tests_targets=
1642for target in $target_list; do
1643  arch=${target%%-*}
1644
1645  case $target in
1646    xtensa*-linux-user)
1647      # the toolchain is not complete with headers, only build system tests
1648      continue
1649      ;;
1650    *-softmmu)
1651      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1652      qemu="qemu-system-$arch"
1653      ;;
1654    *-linux-user|*-bsd-user)
1655      qemu="qemu-$arch"
1656      ;;
1657  esac
1658
1659  if probe_target_compiler $target || test -n "$container_image"; then
1660      test -n "$container_image" && build_static=y
1661      mkdir -p "tests/tcg/$target"
1662      config_target_mak=tests/tcg/$target/config-target.mak
1663      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1664      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1665      echo "TARGET_NAME=$arch" >> "$config_target_mak"
1666      echo "TARGET=$target" >> "$config_target_mak"
1667      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1668      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1669      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1670
1671      # will GDB work with these binaries?
1672      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1673          echo "GDB=$gdb_bin" >> $config_target_mak
1674      fi
1675
1676      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1677      tcg_tests_targets="$tcg_tests_targets $target"
1678  fi
1679done
1680
1681if test "$tcg" = "enabled"; then
1682    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $config_host_mak
1683fi
1684
1685if test "$skip_meson" = no; then
1686  cross="config-meson.cross.new"
1687  meson_quote() {
1688    test $# = 0 && return
1689    echo "'$(echo $* | sed "s/ /','/g")'"
1690  }
1691
1692  echo "# Automatically generated by configure - do not modify" > $cross
1693  echo "[properties]" >> $cross
1694
1695  # unroll any custom device configs
1696  for a in $device_archs; do
1697      eval "c=\$devices_${a}"
1698      echo "${a}-softmmu = '$c'" >> $cross
1699  done
1700
1701  echo "[built-in options]" >> $cross
1702  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1703  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1704  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1705  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1706  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1707
1708  # Only enable by default for git builds and on select OSes
1709  echo "# environment defaults, can still be overridden on " >> $cross
1710  echo "# the command line" >> $cross
1711  if test -e "$source_path/.git" && \
1712      { test "$host_os" = linux || test "$host_os" = "windows"; }; then
1713      echo 'werror = true' >> $cross
1714  fi
1715  echo "[project options]" >> $cross
1716  if test "$SMBD" != ''; then
1717    echo "smbd = $(meson_quote "$SMBD")" >> $cross
1718  fi
1719  if test "${QEMU_GA_MANUFACTURER}" != ''; then
1720    echo "qemu_ga_manufacturer = $(meson_quote "${QEMU_GA_MANUFACTURER}")" >> $cross
1721  fi
1722  if test "${QEMU_GA_DISTRO}" != ''; then
1723    echo "qemu_ga_distro = $(meson_quote "${QEMU_GA_DISTRO}")" >> $cross
1724  fi
1725  if test "${QEMU_GA_VERSION}" != ''; then
1726    echo "qemu_ga_version = $(meson_quote "${QEMU_GA_VERSION}")" >> $cross
1727  fi
1728
1729  echo >> $cross
1730  echo "[binaries]" >> $cross
1731  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1732  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1733  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1734  echo "ar = [$(meson_quote $ar)]" >> $cross
1735  echo "dlltool = [$(meson_quote $dlltool)]" >> $cross
1736  echo "nm = [$(meson_quote $nm)]" >> $cross
1737  echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1738  echo "pkg-config = [$(meson_quote $pkg_config)]" >> $cross
1739  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1740  if has $sdl2_config; then
1741    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1742  fi
1743  echo "strip = [$(meson_quote $strip)]" >> $cross
1744  echo "widl = [$(meson_quote $widl)]" >> $cross
1745  echo "windres = [$(meson_quote $windres)]" >> $cross
1746  echo "windmc = [$(meson_quote $windmc)]" >> $cross
1747  if test "$cross_compile" = "yes"; then
1748    echo "[host_machine]" >> $cross
1749    echo "system = '$host_os'" >> $cross
1750    case "$cpu" in
1751        i386)
1752            echo "cpu_family = 'x86'" >> $cross
1753            ;;
1754        *)
1755            echo "cpu_family = '$cpu'" >> $cross
1756            ;;
1757    esac
1758    echo "cpu = '$cpu'" >> $cross
1759    if test "$bigendian" = "yes" ; then
1760        echo "endian = 'big'" >> $cross
1761    else
1762        echo "endian = 'little'" >> $cross
1763    fi
1764
1765    native="config-meson.native.new"
1766    echo "# Automatically generated by configure - do not modify" > $native
1767    echo "[binaries]" >> $native
1768    echo "c = [$(meson_quote $host_cc)]" >> $native
1769    mv $native config-meson.native
1770    meson_option_add --native-file
1771    meson_option_add config-meson.native
1772  fi
1773  mv $cross config-meson.cross
1774  meson_add_machine_file config-meson.cross
1775  if test -f "$source_path/configs/meson/$host_os.txt"; then
1776    meson_add_machine_file $source_path/configs/meson/$host_os.txt
1777  fi
1778
1779  rm -rf meson-private meson-info meson-logs
1780
1781  test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1782  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1783  test "$static" = yes && meson_option_add -Dprefer_static=true
1784  test "$pie" = no && meson_option_add -Db_pie=false
1785
1786  # QEMU options
1787  test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
1788  test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1789  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1790  test "$plugins" = yes && meson_option_add "-Dplugins=true"
1791  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1792  run_meson() {
1793    NINJA=$ninja $meson setup "$@" "$PWD" "$source_path"
1794  }
1795  eval run_meson $meson_options
1796  if test "$?" -ne 0 ; then
1797      error_exit "meson setup failed"
1798  fi
1799  echo "$meson" > build.ninja.stamp
1800else
1801  if test -f meson-private/cmd_line.txt; then
1802    # Adjust old command line options that were removed
1803    # sed -i is not portable
1804    perl -i -ne '
1805      /^sphinx_build/ && next;
1806      print;' meson-private/cmd_line.txt
1807  fi
1808fi
1809
1810# Save the configure command line for later reuse.
1811cat <<EOD >config.status
1812#!/bin/sh
1813# Generated by configure.
1814# Run this file to recreate the current configuration.
1815# Compiler output produced by configure, useful for debugging
1816# configure, is in config.log if it exists.
1817EOD
1818
1819preserve_env() {
1820    envname=$1
1821
1822    eval envval=\$$envname
1823
1824    if test -n "$envval"
1825    then
1826	echo "$envname='$envval'" >> config.status
1827	echo "export $envname" >> config.status
1828    else
1829	echo "unset $envname" >> config.status
1830    fi
1831}
1832
1833# Preserve various env variables that influence what
1834# features/build target configure will detect
1835preserve_env AR
1836preserve_env AS
1837preserve_env CC
1838preserve_env CFLAGS
1839preserve_env CXX
1840preserve_env CXXFLAGS
1841preserve_env DLLTOOL
1842preserve_env LD
1843preserve_env LDFLAGS
1844preserve_env LD_LIBRARY_PATH
1845preserve_env NM
1846preserve_env OBJCFLAGS
1847preserve_env OBJCOPY
1848preserve_env PATH
1849preserve_env PKG_CONFIG
1850preserve_env PKG_CONFIG_LIBDIR
1851preserve_env PKG_CONFIG_PATH
1852preserve_env PYTHON
1853preserve_env QEMU_GA_MANUFACTURER
1854preserve_env QEMU_GA_DISTRO
1855preserve_env QEMU_GA_VERSION
1856preserve_env SDL2_CONFIG
1857preserve_env SMBD
1858preserve_env STRIP
1859preserve_env WIDL
1860preserve_env WINDRES
1861preserve_env WINDMC
1862
1863printf "exec" >>config.status
1864for i in "$0" "$@"; do
1865  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1866done
1867echo ' "$@"' >>config.status
1868chmod +x config.status
1869
1870rm -r "$TMPDIR1"
1871