xref: /qemu/configure (revision ec6f3fc3) 
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
97error_exit() {
98    (echo
99    echo "ERROR: $1"
100    while test -n "$2"; do
101        echo "       $2"
102        shift
103    done
104    echo) >&2
105    exit 1
106}
107
108do_compiler() {
109  # Run the compiler, capturing its output to the log. First argument
110  # is compiler binary to execute.
111  compiler="$1"
112  shift
113  if test -n "$BASH_VERSION"; then eval '
114      echo >>config.log "
115funcs: ${FUNCNAME[*]}
116lines: ${BASH_LINENO[*]}"
117  '; fi
118  echo $compiler "$@" >> config.log
119  $compiler "$@" >> config.log 2>&1 || return $?
120}
121
122do_cc() {
123    do_compiler "$cc" $CPU_CFLAGS "$@"
124}
125
126compile_object() {
127  local_cflags="$1"
128  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
129}
130
131compile_prog() {
132  local_cflags="$1"
133  local_ldflags="$2"
134  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
135      $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
136}
137
138# symbolically link $1 to $2.  Portable version of "ln -sf".
139symlink() {
140  rm -rf "$2"
141  mkdir -p "$(dirname "$2")"
142  ln -s "$1" "$2"
143}
144
145# check whether a command is available to this shell (may be either an
146# executable or a builtin)
147has() {
148    type "$1" >/dev/null 2>&1
149}
150
151version_ge () {
152    local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
153    local_ver2=$(echo "$2" | tr . ' ')
154    while true; do
155        set x $local_ver1
156        local_first=${2-0}
157        # 'shift 2' if $2 is set, or 'shift' if $2 is not set
158        shift ${2:+2}
159        local_ver1=$*
160        set x $local_ver2
161        # the second argument finished, the first must be greater or equal
162        test $# = 1 && return 0
163        test $local_first -lt $2 && return 1
164        test $local_first -gt $2 && return 0
165        shift ${2:+2}
166        local_ver2=$*
167    done
168}
169
170if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
171then
172  error_exit "main directory cannot contain spaces nor colons"
173fi
174
175# parse CC options first; some compiler tests are used to establish
176# some defaults, based on the host environment
177
178# default parameters
179container_engine="auto"
180cpu=""
181cross_compile="no"
182cross_prefix=""
183host_cc="cc"
184EXTRA_CFLAGS=""
185EXTRA_CXXFLAGS=""
186EXTRA_OBJCFLAGS=""
187EXTRA_LDFLAGS=""
188
189# Default value for a variable defining feature "foo".
190#  * foo="no"  feature will only be used if --enable-foo arg is given
191#  * foo=""    feature will be searched for, and if found, will be used
192#              unless --disable-foo is given
193#  * foo="yes" this value will only be set by --enable-foo flag.
194#              feature will searched for,
195#              if not found, configure exits with error
196#
197# Always add --enable-foo and --disable-foo command line args.
198# Distributions want to ensure that several features are compiled in, and it
199# is impossible without a --enable-foo that exits if a feature is not found.
200default_feature=""
201
202for opt do
203  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
204  case "$opt" in
205  --cross-prefix=*) cross_prefix="$optarg"
206                    cross_compile="yes"
207  ;;
208  --cc=*) CC="$optarg"
209  ;;
210  --cxx=*) CXX="$optarg"
211  ;;
212  --objcc=*) objcc="$optarg"
213  ;;
214  --cpu=*) cpu="$optarg"
215  ;;
216  --extra-cflags=*)
217    EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
218    EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
219    EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
220    ;;
221  --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
222  ;;
223  --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
224  ;;
225  --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
226  ;;
227  --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
228  ;;
229  --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
230                      eval "cross_cc_cflags_${cc_arch}=\$optarg"
231  ;;
232  --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
233                eval "cross_cc_${cc_arch}=\$optarg"
234  ;;
235  --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
236  ;;
237  --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
238                    eval "cross_prefix_${cc_arch}=\$optarg"
239  ;;
240  --without-default-features) default_feature="no"
241  ;;
242  esac
243done
244
245default_cflags='-O2 -g'
246git_submodules_action="update"
247docs="auto"
248EXESUF=""
249system="yes"
250linux_user=""
251bsd_user=""
252plugins="$default_feature"
253subdirs=""
254ninja=""
255python=
256download="enabled"
257skip_meson=no
258use_containers="yes"
259gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
260gdb_arches=""
261
262# Don't accept a target_list environment variable.
263unset target_list
264unset target_list_exclude
265
266# The following Meson options are handled manually (still they
267# are included in the automatically generated help message)
268# because they automatically enable/disable other options
269tcg="auto"
270cfi="false"
271
272# Meson has PIE as a boolean rather than enabled/disabled/auto,
273# and we also need to check for -static-pie before Meson runs
274# which requires knowing whether --static is enabled.
275pie=""
276static="no"
277
278# Preferred compiler:
279#  ${CC} (if set)
280#  ${cross_prefix}gcc (if cross-prefix specified)
281#  system compiler
282if test -z "${CC}${cross_prefix}"; then
283  cc="cc"
284else
285  cc="${CC-${cross_prefix}gcc}"
286fi
287
288if test -z "${CXX}${cross_prefix}"; then
289  cxx="c++"
290else
291  cxx="${CXX-${cross_prefix}g++}"
292fi
293
294# Preferred ObjC compiler:
295# $objcc (if set, i.e. via --objcc option)
296# ${cross_prefix}clang (if cross-prefix specified)
297# clang (if available)
298# $cc
299if test -z "${objcc}${cross_prefix}"; then
300  if has clang; then
301    objcc=clang
302  else
303    objcc="$cc"
304  fi
305else
306  objcc="${objcc-${cross_prefix}clang}"
307fi
308
309ar="${AR-${cross_prefix}ar}"
310as="${AS-${cross_prefix}as}"
311ccas="${CCAS-$cc}"
312dlltool="${DLLTOOL-${cross_prefix}dlltool}"
313objcopy="${OBJCOPY-${cross_prefix}objcopy}"
314ld="${LD-${cross_prefix}ld}"
315ranlib="${RANLIB-${cross_prefix}ranlib}"
316nm="${NM-${cross_prefix}nm}"
317strip="${STRIP-${cross_prefix}strip}"
318widl="${WIDL-${cross_prefix}widl}"
319windres="${WINDRES-${cross_prefix}windres}"
320windmc="${WINDMC-${cross_prefix}windmc}"
321pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
322sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
323
324check_define() {
325cat > $TMPC <<EOF
326#if !defined($1)
327#error $1 not defined
328#endif
329int main(void) { return 0; }
330EOF
331  compile_object
332}
333
334write_c_skeleton() {
335    cat > $TMPC <<EOF
336int main(void) { return 0; }
337EOF
338}
339
340if check_define __linux__ ; then
341  targetos=linux
342elif check_define _WIN32 ; then
343  targetos=windows
344elif check_define __OpenBSD__ ; then
345  targetos=openbsd
346elif check_define __sun__ ; then
347  targetos=sunos
348elif check_define __HAIKU__ ; then
349  targetos=haiku
350elif check_define __FreeBSD__ ; then
351  targetos=freebsd
352elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
353  targetos=gnu/kfreebsd
354elif check_define __DragonFly__ ; then
355  targetos=dragonfly
356elif check_define __NetBSD__; then
357  targetos=netbsd
358elif check_define __APPLE__; then
359  targetos=darwin
360else
361  # This is a fatal error, but don't report it yet, because we
362  # might be going to just print the --help text, or it might
363  # be the result of a missing compiler.
364  targetos=bogus
365fi
366
367if test ! -z "$cpu" ; then
368  # command line argument
369  :
370elif check_define __i386__ ; then
371  cpu="i386"
372elif check_define __x86_64__ ; then
373  if check_define __ILP32__ ; then
374    cpu="x32"
375  else
376    cpu="x86_64"
377  fi
378elif check_define __sparc__ ; then
379  if check_define __arch64__ ; then
380    cpu="sparc64"
381  else
382    cpu="sparc"
383  fi
384elif check_define _ARCH_PPC ; then
385  if check_define _ARCH_PPC64 ; then
386    if check_define _LITTLE_ENDIAN ; then
387      cpu="ppc64le"
388    else
389      cpu="ppc64"
390    fi
391  else
392    cpu="ppc"
393  fi
394elif check_define __mips__ ; then
395  cpu="mips"
396elif check_define __s390__ ; then
397  if check_define __s390x__ ; then
398    cpu="s390x"
399  else
400    cpu="s390"
401  fi
402elif check_define __riscv ; then
403  if check_define _LP64 ; then
404    cpu="riscv64"
405  else
406    cpu="riscv32"
407  fi
408elif check_define __arm__ ; then
409  cpu="arm"
410elif check_define __aarch64__ ; then
411  cpu="aarch64"
412elif check_define __loongarch64 ; then
413  cpu="loongarch64"
414else
415  # Using uname is really broken, but it is just a fallback for architectures
416  # that are going to use TCI anyway
417  cpu=$(uname -m)
418  echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
419fi
420
421# Normalise host CPU name to the values used by Meson cross files and in source
422# directories, and set multilib cflags.  The canonicalization isn't really
423# necessary, because the architectures that we check for should not hit the
424# 'uname -m' case, but better safe than sorry in case --cpu= is used.
425#
426# Note that this case should only have supported host CPUs, not guests.
427# Please keep it sorted and synchronized with meson.build's host_arch.
428host_arch=
429linux_arch=
430case "$cpu" in
431  aarch64)
432    host_arch=aarch64
433    linux_arch=arm64
434    ;;
435
436  armv*b|armv*l|arm)
437    cpu=arm
438    host_arch=arm
439    linux_arch=arm
440    ;;
441
442  i386|i486|i586|i686)
443    cpu="i386"
444    host_arch=i386
445    linux_arch=x86
446    CPU_CFLAGS="-m32"
447    ;;
448
449  loongarch*)
450    cpu=loongarch64
451    host_arch=loongarch64
452    ;;
453
454  mips64*)
455    cpu=mips64
456    host_arch=mips
457    linux_arch=mips
458    ;;
459  mips*)
460    cpu=mips
461    host_arch=mips
462    linux_arch=mips
463    ;;
464
465  ppc)
466    host_arch=ppc
467    linux_arch=powerpc
468    CPU_CFLAGS="-m32"
469    ;;
470  ppc64)
471    host_arch=ppc64
472    linux_arch=powerpc
473    CPU_CFLAGS="-m64 -mbig-endian"
474    ;;
475  ppc64le)
476    cpu=ppc64
477    host_arch=ppc64
478    linux_arch=powerpc
479    CPU_CFLAGS="-m64 -mlittle-endian"
480    ;;
481
482  riscv32 | riscv64)
483    host_arch=riscv
484    linux_arch=riscv
485    ;;
486
487  s390)
488    linux_arch=s390
489    CPU_CFLAGS="-m31"
490    ;;
491  s390x)
492    host_arch=s390x
493    linux_arch=s390
494    CPU_CFLAGS="-m64"
495    ;;
496
497  sparc|sun4[cdmuv])
498    cpu=sparc
499    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
500    ;;
501  sparc64)
502    host_arch=sparc64
503    CPU_CFLAGS="-m64 -mcpu=ultrasparc"
504    ;;
505
506  x32)
507    cpu="x86_64"
508    host_arch=x86_64
509    linux_arch=x86
510    CPU_CFLAGS="-mx32"
511    ;;
512  x86_64|amd64)
513    cpu="x86_64"
514    host_arch=x86_64
515    linux_arch=x86
516    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
517    # If we truly care, we should simply detect this case at
518    # runtime and generate the fallback to serial emulation.
519    CPU_CFLAGS="-m64 -mcx16"
520    ;;
521esac
522
523if test -n "$host_arch" && {
524    ! test -d "$source_path/linux-user/include/host/$host_arch" ||
525    ! test -d "$source_path/common-user/host/$host_arch"; }; then
526    error_exit "linux-user/include/host/$host_arch does not exist." \
527       "This is a bug in the configure script, please report it."
528fi
529if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
530    error_exit "linux-headers/asm-$linux_arch does not exist." \
531       "This is a bug in the configure script, please report it."
532fi
533
534check_py_version() {
535    # We require python >= 3.8.
536    # NB: a True python conditional creates a non-zero return code (Failure)
537    "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
538}
539
540first_python=
541if test -z "${PYTHON}"; then
542    # A bare 'python' is traditionally python 2.x, but some distros
543    # have it as python 3.x, so check in both places.
544    for binary in python3 python python3.12 python3.11 \
545                          python3.10 python3.9 python3.8; do
546        if has "$binary"; then
547            python=$(command -v "$binary")
548            if check_py_version "$python"; then
549                # This one is good.
550                first_python=
551                break
552            else
553                first_python=$python
554            fi
555        fi
556    done
557else
558    # Same as above, but only check the environment variable.
559    has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
560    python=$(command -v "$PYTHON")
561    if check_py_version "$python"; then
562        # This one is good.
563        first_python=
564    else
565        first_python=$first_python
566    fi
567fi
568
569# Check for ancillary tools used in testing
570genisoimage=
571for binary in genisoimage mkisofs
572do
573    if has $binary
574    then
575        genisoimage=$(command -v "$binary")
576        break
577    fi
578done
579
580if test "$targetos" = "windows" ; then
581  EXESUF=".exe"
582fi
583
584meson_option_build_array() {
585  printf '['
586  (if test "$targetos" = windows; then
587    IFS=\;
588  else
589    IFS=:
590  fi
591  for e in $1; do
592    printf '"""'
593    # backslash escape any '\' and '"' characters
594    printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
595    printf '""",'
596  done)
597  printf ']\n'
598}
599
600. "$source_path/scripts/meson-buildoptions.sh"
601
602meson_options=
603meson_option_add() {
604  local arg
605  for arg; do
606    meson_options="$meson_options $(quote_sh "$arg")"
607  done
608}
609meson_option_parse() {
610  meson_options="$meson_options $(_meson_option_parse "$@")"
611  if test $? -eq 1; then
612    echo "ERROR: unknown option $1"
613    echo "Try '$0 --help' for more information"
614    exit 1
615  fi
616}
617
618meson_add_machine_file() {
619  if test "$cross_compile" = "yes"; then
620    meson_option_add --cross-file "$1"
621  else
622    meson_option_add --native-file "$1"
623  fi
624}
625
626for opt do
627  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
628  case "$opt" in
629  --help|-h) show_help=yes
630  ;;
631  --version|-V) exec cat "$source_path/VERSION"
632  ;;
633  --cross-prefix=*)
634  ;;
635  --cc=*)
636  ;;
637  --host-cc=*) host_cc="$optarg"
638  ;;
639  --cxx=*)
640  ;;
641  --objcc=*)
642  ;;
643  --make=*)
644  ;;
645  --install=*)
646  ;;
647  --python=*) python="$optarg"
648  ;;
649  --skip-meson) skip_meson=yes
650  ;;
651  --ninja=*) ninja="$optarg"
652  ;;
653  --extra-cflags=*)
654  ;;
655  --extra-cxxflags=*)
656  ;;
657  --extra-objcflags=*)
658  ;;
659  --extra-ldflags=*)
660  ;;
661  --cross-cc-*)
662  ;;
663  --cross-prefix-*)
664  ;;
665  --enable-docs) docs=enabled
666  ;;
667  --disable-docs) docs=disabled
668  ;;
669  --cpu=*)
670  ;;
671  --target-list=*) target_list="$optarg"
672                   if test "$target_list_exclude"; then
673                       error_exit "Can't mix --target-list with --target-list-exclude"
674                   fi
675  ;;
676  --target-list-exclude=*) target_list_exclude="$optarg"
677                   if test "$target_list"; then
678                       error_exit "Can't mix --target-list-exclude with --target-list"
679                   fi
680  ;;
681  --with-default-devices) meson_option_add -Ddefault_devices=true
682  ;;
683  --without-default-devices) meson_option_add -Ddefault_devices=false
684  ;;
685  --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
686  ;;
687  --with-devices-*) device_arch=${opt#--with-devices-};
688                    device_arch=${device_arch%%=*}
689                    cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
690                    if test -f "$cf"; then
691                        device_archs="$device_archs $device_arch"
692                        eval "devices_${device_arch}=\$optarg"
693                    else
694                        error_exit "File $cf does not exist"
695                    fi
696  ;;
697  --without-default-features) # processed above
698  ;;
699  --static) static="yes"
700  ;;
701  --host=*|--build=*|\
702  --disable-dependency-tracking|\
703  --sbindir=*|--sharedstatedir=*|\
704  --oldincludedir=*|--datarootdir=*|--infodir=*|\
705  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
706    # These switches are silently ignored, for compatibility with
707    # autoconf-generated configure scripts. This allows QEMU's
708    # configure to be used by RPM and similar macros that set
709    # lots of directory switches by default.
710  ;;
711  --enable-debug)
712      # Enable debugging options that aren't excessively noisy
713      meson_option_parse --enable-debug-tcg ""
714      meson_option_parse --enable-debug-graph-lock ""
715      meson_option_parse --enable-debug-mutex ""
716      meson_option_add -Doptimization=0
717      default_cflags='-O0 -g'
718  ;;
719  --disable-tcg) tcg="disabled"
720  ;;
721  --enable-tcg) tcg="enabled"
722  ;;
723  --disable-system) system="no"
724  ;;
725  --enable-system) system="yes"
726  ;;
727  --disable-user)
728      linux_user="no" ;
729      bsd_user="no" ;
730  ;;
731  --enable-user) ;;
732  --disable-linux-user) linux_user="no"
733  ;;
734  --enable-linux-user) linux_user="yes"
735  ;;
736  --disable-bsd-user) bsd_user="no"
737  ;;
738  --enable-bsd-user) bsd_user="yes"
739  ;;
740  --enable-pie) pie="yes"
741  ;;
742  --disable-pie) pie="no"
743  ;;
744  --enable-cfi) cfi=true
745  ;;
746  --disable-cfi) cfi=false
747  ;;
748  --disable-download) download="disabled"; git_submodules_action=validate;
749  ;;
750  --enable-download) download="enabled"; git_submodules_action=update;
751  ;;
752  --enable-plugins) plugins="yes"
753  ;;
754  --disable-plugins) plugins="no"
755  ;;
756  --enable-containers) use_containers="yes"
757  ;;
758  --disable-containers) use_containers="no"
759  ;;
760  --container-engine=*) container_engine="$optarg"
761  ;;
762  --gdb=*) gdb_bin="$optarg"
763  ;;
764  # everything else has the same name in configure and meson
765  --*) meson_option_parse "$opt" "$optarg"
766  ;;
767  # Pass through -Dxxxx options to meson
768  -D*) meson_options="$meson_options $opt"
769  ;;
770  esac
771done
772
773if ! test -e "$source_path/.git"
774then
775    git_submodules_action="validate"
776fi
777
778if ! test -f "$source_path/subprojects/keycodemapdb/README" \
779    && test "$download" = disabled
780then
781    echo
782    echo "ERROR: missing subprojects"
783    echo
784    if test -e "$source_path/.git"; then
785        echo "--disable-download specified but subprojects were not"
786        echo 'checked out.  Please invoke "meson subprojects download"'
787        echo "before configuring QEMU, or remove --disable-download"
788        echo "from the command line."
789    else
790        echo "This is not a GIT checkout but subproject content appears to"
791        echo "be missing. Do not use 'git archive' or GitHub download links"
792        echo "to acquire QEMU source archives. Non-GIT builds are only"
793        echo "supported with source archives linked from:"
794        echo
795        echo "  https://www.qemu.org/download/#source"
796        echo
797        echo "Developers working with GIT can use scripts/archive-source.sh"
798        echo "if they need to create valid source archives."
799    fi
800    echo
801    exit 1
802fi
803
804default_target_list=""
805mak_wilds=""
806
807if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
808    if [ "$linux_user" != no ]; then
809        if [ "$targetos" = linux ]; then
810            linux_user=yes
811        elif [ "$linux_user" = yes ]; then
812            error_exit "linux-user not supported on this architecture"
813        fi
814        if [ "$linux_user" = "yes" ]; then
815            mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
816        fi
817    fi
818    if [ "$bsd_user" != no ]; then
819        if [ "$bsd_user" = "" ]; then
820            test $targetos = freebsd && bsd_user=yes
821        fi
822        if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
823            error_exit "bsd-user not supported on this host OS"
824        fi
825        if [ "$bsd_user" = "yes" ]; then
826            mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
827        fi
828    fi
829else
830    if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
831        error_exit "user mode emulation not supported on this architecture"
832    fi
833fi
834if [ "$system" = "yes" ]; then
835    mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
836fi
837
838for config in $mak_wilds; do
839    target="$(basename "$config" .mak)"
840    if echo "$target_list_exclude" | grep -vq "$target"; then
841        default_target_list="${default_target_list} $target"
842    fi
843done
844
845if test x"$show_help" = x"yes" ; then
846cat << EOF
847
848Usage: configure [options]
849Options: [defaults in brackets after descriptions]
850
851Standard options:
852  --help                   print this message
853  --target-list=LIST       set target list (default: build all)
854$(echo Available targets: $default_target_list | \
855  fold -s -w 53 | sed -e 's/^/                           /')
856  --target-list-exclude=LIST exclude a set of targets from the default target-list
857
858Advanced options (experts only):
859  -Dmesonoptname=val       passthrough option to meson unmodified
860  --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
861  --cc=CC                  use C compiler CC [$cc]
862  --host-cc=CC             when cross compiling, use C compiler CC for code run
863                           at build time [$host_cc]
864  --cxx=CXX                use C++ compiler CXX [$cxx]
865  --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
866  --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
867  --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
868  --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
869  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
870  --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
871  --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
872  --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
873  --python=PYTHON          use specified python [$python]
874  --ninja=NINJA            use specified ninja [$ninja]
875  --static                 enable static build [$static]
876  --without-default-features default all --enable-* options to "disabled"
877  --without-default-devices  do not include any device that is not needed to
878                           start the emulator (only use if you are including
879                           desired devices in configs/devices/)
880  --with-devices-ARCH=NAME override default configs/devices
881  --enable-debug           enable common debug build options
882  --cpu=CPU                Build for host CPU [$cpu]
883  --disable-containers     don't use containers for cross-building
884  --container-engine=TYPE  which container engine to use [$container_engine]
885  --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
886EOF
887  meson_options_help
888cat << EOF
889  system          all system emulation targets
890  user            supported user emulation targets
891  linux-user      all linux usermode emulation targets
892  bsd-user        all BSD usermode emulation targets
893  pie             Position Independent Executables
894
895NOTE: The object files are built at the place where configure is launched
896EOF
897exit 0
898fi
899
900# Remove old dependency files to make sure that they get properly regenerated
901rm -f ./*/config-devices.mak.d
902
903if test -z "$python"
904then
905    # If first_python is set, there was a binary somewhere even though
906    # it was not suitable.  Use it for the error message.
907    if test -n "$first_python"; then
908        error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
909            "Use --python=/path/to/python to specify a supported Python."
910    else
911        error_exit "Python not found. Use --python=/path/to/python"
912    fi
913fi
914
915if ! check_py_version "$python"; then
916  error_exit "Cannot use '$python', Python >= 3.8 is required." \
917             "Use --python=/path/to/python to specify a supported Python." \
918             "Maybe try:" \
919             "  openSUSE Leap 15.3+: zypper install python39" \
920             "  CentOS 8: dnf install python38"
921fi
922
923# Resolve PATH
924python="$(command -v "$python")"
925
926# Create a Python virtual environment using our configured python.
927# The stdout of this script will be the location of a symlink that
928# points to the configured Python.
929# Entry point scripts for pip, meson, and sphinx are generated if those
930# packages are present.
931
932# Defaults assumed for now:
933# - venv is cleared if it exists already;
934# - venv is allowed to use system packages;
935# - all setup can be performed offline;
936# - missing packages may be fetched from PyPI,
937#   unless --disable-download is passed.
938# - pip is not installed into the venv when possible,
939#   but ensurepip is called as a fallback when necessary.
940
941echo "python determined to be '$python'"
942echo "python version: $($python --version)"
943
944python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
945if test "$?" -ne 0 ; then
946    error_exit "python venv creation failed"
947fi
948
949# Suppress writing compiled files
950python="$python -B"
951mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
952
953# Finish preparing the virtual environment using vendored .whl files
954
955if $python -c 'import sys; sys.exit(sys.version_info >= (3,11))'; then
956    $mkvenv ensure --dir "${source_path}/python/wheels" \
957        'tomli>=1.2.0' || exit 1
958fi
959$mkvenv ensuregroup --dir "${source_path}/python/wheels" \
960     ${source_path}/pythondeps.toml meson || exit 1
961
962# At this point, we expect Meson to be installed and available.
963# We expect mkvenv or pip to have created pyvenv/bin/meson for us.
964# We ignore PATH completely here: we want to use the venv's Meson
965# *exclusively*.
966
967meson="$(cd pyvenv/bin; pwd)/meson"
968
969# Conditionally ensure Sphinx is installed.
970
971mkvenv_flags=""
972if test "$download" = "enabled" -a "$docs" = "enabled" ; then
973    mkvenv_flags="--online"
974fi
975
976if test "$docs" != "disabled" ; then
977    if ! $mkvenv ensuregroup \
978         $mkvenv_flags \
979         ${source_path}/pythondeps.toml docs;
980    then
981        if test "$docs" = "enabled" ; then
982            exit 1
983        fi
984        echo "Sphinx not found/usable, disabling docs."
985        docs=disabled
986    else
987        docs=enabled
988    fi
989fi
990
991# Probe for ninja
992
993if test -z "$ninja"; then
994    for c in ninja ninja-build samu; do
995        if has $c; then
996            ninja=$(command -v "$c")
997            break
998        fi
999    done
1000    if test -z "$ninja"; then
1001      error_exit "Cannot find Ninja"
1002    fi
1003fi
1004
1005if test "$targetos" = "bogus"; then
1006    # Now that we know that we're not printing the help and that
1007    # the compiler works (so the results of the check_defines we used
1008    # to identify the OS are reliable), if we didn't recognize the
1009    # host OS we should stop now.
1010    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1011fi
1012
1013# test for any invalid configuration combinations
1014if test "$targetos" = "windows" && ! has "$dlltool"; then
1015  if test "$plugins" = "yes"; then
1016    error_exit "TCG plugins requires dlltool to build on Windows platforms"
1017  fi
1018  plugins="no"
1019fi
1020if test "$tcg" = "disabled" ; then
1021  if test "$plugins" = "yes"; then
1022    error_exit "Can't enable plugins on non-TCG builds"
1023  fi
1024  plugins="no"
1025fi
1026if test "$static" = "yes" ; then
1027  if test "$plugins" = "yes"; then
1028    error_exit "static and plugins are mutually incompatible"
1029  fi
1030  plugins="no"
1031fi
1032if test "$plugins" != "no"; then
1033  plugins=yes
1034  subdirs="$subdirs contrib/plugins"
1035fi
1036
1037cat > $TMPC << EOF
1038
1039#ifdef __linux__
1040#  define THREAD __thread
1041#else
1042#  define THREAD
1043#endif
1044static THREAD int tls_var;
1045int main(void) { return tls_var; }
1046EOF
1047
1048if test "$targetos" = windows || test "$targetos" = haiku; then
1049  if test "$pie" = "yes"; then
1050    error_exit "PIE not available due to missing OS support"
1051  fi
1052  pie=no
1053fi
1054
1055if test "$pie" != "no"; then
1056  if test "$static" = "yes"; then
1057    pie_ldflags=-static-pie
1058  else
1059    pie_ldflags=-pie
1060  fi
1061  if compile_prog "-Werror -fPIE -DPIE" "$pie_ldflags"; then
1062    pie="yes"
1063  elif test "$pie" = "yes"; then
1064    error_exit "-static-pie not available due to missing toolchain support"
1065  else
1066    echo "Disabling PIE due to missing toolchain support"
1067    pie="no"
1068  fi
1069fi
1070
1071##########################################
1072
1073if test -z "${target_list+xxx}" ; then
1074    default_targets=yes
1075    for target in $default_target_list; do
1076        target_list="$target_list $target"
1077    done
1078    target_list="${target_list# }"
1079else
1080    default_targets=no
1081    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1082    for target in $target_list; do
1083        # Check that we recognised the target name; this allows a more
1084        # friendly error message than if we let it fall through.
1085        case " $default_target_list " in
1086            *" $target "*)
1087                ;;
1088            *)
1089                error_exit "Unknown target name '$target'"
1090                ;;
1091        esac
1092    done
1093fi
1094
1095if test "$tcg" = "auto"; then
1096  if test -z "$target_list"; then
1097    tcg="disabled"
1098  else
1099    tcg="enabled"
1100  fi
1101fi
1102
1103#########################################
1104# gdb test
1105
1106if test -n "$gdb_bin"; then
1107    gdb_version=$($gdb_bin --version | head -n 1)
1108    if version_ge ${gdb_version##* } 9.1; then
1109        gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1110    else
1111        gdb_bin=""
1112    fi
1113fi
1114
1115##########################################
1116# big/little endian test
1117cat > $TMPC << EOF
1118#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1119# error LITTLE
1120#endif
1121int main(void) { return 0; }
1122EOF
1123
1124if ! compile_prog ; then
1125  bigendian="no"
1126else
1127  cat > $TMPC << EOF
1128#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1129# error BIG
1130#endif
1131int main(void) { return 0; }
1132EOF
1133
1134  if ! compile_prog ; then
1135    bigendian="yes"
1136  else
1137    echo big/little test failed
1138    exit 1
1139  fi
1140fi
1141
1142##########################################
1143# functions to probe cross compilers
1144
1145container="no"
1146runc=""
1147if test $use_containers = "yes" && (has "docker" || has "podman"); then
1148    case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1149        *docker) container=docker ;;
1150        podman) container=podman ;;
1151        no) container=no ;;
1152    esac
1153    if test "$container" != "no"; then
1154        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1155        runc=$container
1156    fi
1157fi
1158
1159# cross compilers defaults, can be overridden with --cross-cc-ARCH
1160: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1161: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1162: ${cross_prefix_alpha="alpha-linux-gnu-"}
1163: ${cross_prefix_arm="arm-linux-gnueabihf-"}
1164: ${cross_prefix_armeb="$cross_prefix_arm"}
1165: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1166: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1167: ${cross_prefix_hppa="hppa-linux-gnu-"}
1168: ${cross_prefix_i386="i686-linux-gnu-"}
1169: ${cross_prefix_m68k="m68k-linux-gnu-"}
1170: ${cross_prefix_microblaze="microblaze-linux-musl-"}
1171: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1172: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1173: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1174: ${cross_prefix_mips="mips-linux-gnu-"}
1175: ${cross_prefix_nios2="nios2-linux-gnu-"}
1176: ${cross_prefix_ppc="powerpc-linux-gnu-"}
1177: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1178: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1179: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1180: ${cross_prefix_s390x="s390x-linux-gnu-"}
1181: ${cross_prefix_sh4="sh4-linux-gnu-"}
1182: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1183: ${cross_prefix_sparc="$cross_prefix_sparc64"}
1184: ${cross_prefix_tricore="tricore-"}
1185: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1186
1187: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1188: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1189: ${cross_cc_armeb="$cross_cc_arm"}
1190: ${cross_cc_cflags_armeb="-mbig-endian"}
1191: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1192: ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1193: ${cross_cc_cflags_i386="-m32"}
1194: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1195: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1196: ${cross_cc_ppc64le="$cross_cc_ppc64"}
1197: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1198: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1199: ${cross_cc_sparc="$cross_cc_sparc64"}
1200: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1201: ${cross_cc_cflags_x86_64="-m64"}
1202
1203compute_target_variable() {
1204  eval "$2="
1205  if eval test -n "\"\${cross_prefix_$1}\""; then
1206    if eval has "\"\${cross_prefix_$1}\$3\""; then
1207      eval "$2=\"\${cross_prefix_$1}\$3\""
1208    fi
1209  fi
1210}
1211
1212have_target() {
1213  for i; do
1214    case " $target_list " in
1215      *" $i "*) return 0;;
1216      *) ;;
1217    esac
1218  done
1219  return 1
1220}
1221
1222# probe_target_compiler TARGET
1223#
1224# Look for a compiler for the given target, either native or cross.
1225# Set variables target_* if a compiler is found, and container_cross_*
1226# if a Docker-based cross-compiler image is known for the target.
1227# Set got_cross_cc to yes/no depending on whether a non-container-based
1228# compiler was found.
1229#
1230# If TARGET is a user-mode emulation target, also set build_static to
1231# "y" if static linking is possible.
1232#
1233probe_target_compiler() {
1234  # reset all output variables
1235  got_cross_cc=no
1236  container_image=
1237  container_hosts=
1238  container_cross_cc=
1239  container_cross_ar=
1240  container_cross_as=
1241  container_cross_ld=
1242  container_cross_nm=
1243  container_cross_objcopy=
1244  container_cross_ranlib=
1245  container_cross_strip=
1246
1247  target_arch=${1%%-*}
1248  case $target_arch in
1249    aarch64) container_hosts="x86_64 aarch64" ;;
1250    alpha) container_hosts=x86_64 ;;
1251    arm) container_hosts="x86_64 aarch64" ;;
1252    cris) container_hosts=x86_64 ;;
1253    hexagon) container_hosts=x86_64 ;;
1254    hppa) container_hosts=x86_64 ;;
1255    i386) container_hosts=x86_64 ;;
1256    loongarch64) container_hosts=x86_64 ;;
1257    m68k) container_hosts=x86_64 ;;
1258    microblaze) container_hosts=x86_64 ;;
1259    mips64el) container_hosts=x86_64 ;;
1260    mips64) container_hosts=x86_64 ;;
1261    mipsel) container_hosts=x86_64 ;;
1262    mips) container_hosts=x86_64 ;;
1263    nios2) container_hosts=x86_64 ;;
1264    ppc) container_hosts=x86_64 ;;
1265    ppc64|ppc64le) container_hosts=x86_64 ;;
1266    riscv64) container_hosts=x86_64 ;;
1267    s390x) container_hosts=x86_64 ;;
1268    sh4) container_hosts=x86_64 ;;
1269    sparc64) container_hosts=x86_64 ;;
1270    tricore) container_hosts=x86_64 ;;
1271    x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1272    xtensa*) container_hosts=x86_64 ;;
1273  esac
1274
1275  for host in $container_hosts; do
1276    test "$container" != no || continue
1277    test "$host" = "$cpu" || continue
1278    case $target_arch in
1279      aarch64)
1280        # We don't have any bigendian build tools so we only use this for AArch64
1281        container_image=debian-arm64-cross
1282        container_cross_prefix=aarch64-linux-gnu-
1283        container_cross_cc=${container_cross_prefix}gcc
1284        ;;
1285      alpha)
1286        container_image=debian-legacy-test-cross
1287        container_cross_prefix=alpha-linux-gnu-
1288        container_cross_cc=${container_cross_prefix}gcc
1289        ;;
1290      arm)
1291        # We don't have any bigendian build tools so we only use this for ARM
1292        container_image=debian-armhf-cross
1293        container_cross_prefix=arm-linux-gnueabihf-
1294        ;;
1295      cris)
1296        container_image=fedora-cris-cross
1297        container_cross_prefix=cris-linux-gnu-
1298        ;;
1299      hexagon)
1300        container_image=debian-hexagon-cross
1301        container_cross_prefix=hexagon-unknown-linux-musl-
1302        container_cross_cc=${container_cross_prefix}clang
1303        ;;
1304      hppa)
1305        container_image=debian-all-test-cross
1306        container_cross_prefix=hppa-linux-gnu-
1307        container_cross_cc=${container_cross_prefix}gcc
1308        ;;
1309      i386)
1310        container_image=fedora-i386-cross
1311        container_cross_prefix=
1312        ;;
1313      loongarch64)
1314        container_image=debian-loongarch-cross
1315        container_cross_prefix=loongarch64-unknown-linux-gnu-
1316        ;;
1317      m68k)
1318        container_image=debian-all-test-cross
1319        container_cross_prefix=m68k-linux-gnu-
1320        container_cross_cc=${container_cross_prefix}gcc
1321        ;;
1322      microblaze)
1323        container_image=debian-microblaze-cross
1324        container_cross_prefix=microblaze-linux-musl-
1325        ;;
1326      mips64el)
1327        container_image=debian-mips64el-cross
1328        container_cross_prefix=mips64el-linux-gnuabi64-
1329        ;;
1330      mips64)
1331        container_image=debian-all-test-cross
1332        container_cross_prefix=mips64-linux-gnuabi64-
1333        ;;
1334      mips)
1335        container_image=debian-all-test-cross
1336        container_cross_prefix=mips-linux-gnu-
1337        ;;
1338      nios2)
1339        container_image=debian-nios2-cross
1340        container_cross_prefix=nios2-linux-gnu-
1341        ;;
1342      ppc)
1343        container_image=debian-all-test-cross
1344        container_cross_prefix=powerpc-linux-gnu-
1345        container_cross_cc=${container_cross_prefix}gcc
1346        ;;
1347      ppc64|ppc64le)
1348        container_image=debian-all-test-cross
1349        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1350        ;;
1351      riscv64)
1352        container_image=debian-all-test-cross
1353        container_cross_prefix=riscv64-linux-gnu-
1354        ;;
1355      sh4)
1356        container_image=debian-legacy-test-cross
1357        container_cross_prefix=sh4-linux-gnu-
1358        ;;
1359      sparc64)
1360        container_image=debian-all-test-cross
1361        container_cross_prefix=sparc64-linux-gnu-
1362        ;;
1363      tricore)
1364        container_image=debian-tricore-cross
1365        container_cross_prefix=tricore-
1366        ;;
1367      x86_64)
1368        container_image=debian-amd64-cross
1369        container_cross_prefix=x86_64-linux-gnu-
1370        ;;
1371      xtensa*)
1372        container_image=debian-xtensa-cross
1373
1374        # default to the dc232b cpu
1375        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1376        ;;
1377      *)
1378        # Debian and GNU architecture names usually match
1379        container_image=debian-$target_arch-cross
1380        container_cross_prefix=$target_arch-linux-gnu-
1381        ;;
1382    esac
1383    : ${container_cross_cc:=${container_cross_prefix}gcc}
1384    : ${container_cross_ar:=${container_cross_prefix}ar}
1385    : ${container_cross_as:=${container_cross_prefix}as}
1386    : ${container_cross_ld:=${container_cross_prefix}ld}
1387    : ${container_cross_nm:=${container_cross_prefix}nm}
1388    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1389    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1390    : ${container_cross_strip:=${container_cross_prefix}strip}
1391  done
1392
1393  try=cross
1394  case "$target_arch:$cpu" in
1395    aarch64_be:aarch64 | \
1396    armeb:arm | \
1397    i386:x86_64 | \
1398    mips*:mips64 | \
1399    ppc*:ppc64 | \
1400    sparc:sparc64 | \
1401    "$cpu:$cpu")
1402      try='native cross' ;;
1403  esac
1404  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1405  for thistry in $try; do
1406    case $thistry in
1407    native)
1408      target_cc=$cc
1409      target_ccas=$ccas
1410      target_ar=$ar
1411      target_as=$as
1412      target_ld=$ld
1413      target_nm=$nm
1414      target_objcopy=$objcopy
1415      target_ranlib=$ranlib
1416      target_strip=$strip
1417      ;;
1418    cross)
1419      target_cc=
1420      if eval test -n "\"\${cross_cc_$target_arch}\""; then
1421        if eval has "\"\${cross_cc_$target_arch}\""; then
1422          eval "target_cc=\"\${cross_cc_$target_arch}\""
1423        fi
1424      else
1425        compute_target_variable $target_arch target_cc gcc
1426      fi
1427      target_ccas=$target_cc
1428      compute_target_variable $target_arch target_ar ar
1429      compute_target_variable $target_arch target_as as
1430      compute_target_variable $target_arch target_ld ld
1431      compute_target_variable $target_arch target_nm nm
1432      compute_target_variable $target_arch target_objcopy objcopy
1433      compute_target_variable $target_arch target_ranlib ranlib
1434      compute_target_variable $target_arch target_strip strip
1435      ;;
1436    esac
1437
1438    if test -n "$target_cc"; then
1439      case $target_arch in
1440        i386|x86_64)
1441          if $target_cc --version | grep -qi "clang"; then
1442            continue
1443          fi
1444          ;;
1445      esac
1446    elif test -n "$target_as" && test -n "$target_ld"; then
1447      # Special handling for assembler only targets
1448      case $target in
1449        tricore-softmmu)
1450          build_static=
1451          got_cross_cc=yes
1452          break
1453          ;;
1454        *)
1455          continue
1456          ;;
1457      esac
1458    else
1459      continue
1460    fi
1461
1462    write_c_skeleton
1463    case $1 in
1464      *-softmmu)
1465        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1466          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1467          got_cross_cc=yes
1468          break
1469        fi
1470        ;;
1471      *)
1472        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1473          build_static=y
1474          got_cross_cc=yes
1475          break
1476        fi
1477        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1478          build_static=
1479          got_cross_cc=yes
1480          break
1481        fi
1482        ;;
1483    esac
1484  done
1485  if test $got_cross_cc != yes; then
1486    build_static=
1487    target_cc=
1488    target_ccas=
1489    target_ar=
1490    target_as=
1491    target_ld=
1492    target_nm=
1493    target_objcopy=
1494    target_ranlib=
1495    target_strip=
1496  fi
1497  test -n "$target_cc"
1498}
1499
1500write_target_makefile() {
1501  echo "EXTRA_CFLAGS=$target_cflags"
1502  if test -z "$target_cc" && test -z "$target_as"; then
1503    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1504    echo "$1: docker-image-$container_image" >> Makefile.prereqs
1505    if test -n "$container_cross_cc"; then
1506      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1507      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1508    fi
1509    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1510    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1511    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1512    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1513    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1514    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1515    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1516  else
1517    if test -n "$target_cc"; then
1518      echo "CC=$target_cc"
1519      echo "CCAS=$target_ccas"
1520    fi
1521    if test -n "$target_ar"; then
1522      echo "AR=$target_ar"
1523    fi
1524    if test -n "$target_as"; then
1525      echo "AS=$target_as"
1526    fi
1527    if test -n "$target_ld"; then
1528      echo "LD=$target_ld"
1529    fi
1530    if test -n "$target_nm"; then
1531      echo "NM=$target_nm"
1532    fi
1533    if test -n "$target_objcopy"; then
1534      echo "OBJCOPY=$target_objcopy"
1535    fi
1536    if test -n "$target_ranlib"; then
1537      echo "RANLIB=$target_ranlib"
1538    fi
1539    if test -n "$target_strip"; then
1540      echo "STRIP=$target_strip"
1541    fi
1542  fi
1543}
1544
1545#######################################
1546# cross-compiled firmware targets
1547
1548# Set up build tree symlinks that point back into the source tree
1549# (these can be both files and directories).
1550# Caution: avoid adding files or directories here using wildcards. This
1551# will result in problems later if a new file matching the wildcard is
1552# added to the source tree -- nothing will cause configure to be rerun
1553# so the build tree will be missing the link back to the new file, and
1554# tests might fail. Prefer to keep the relevant files in their own
1555# directory and symlink the directory instead.
1556LINKS="Makefile"
1557LINKS="$LINKS docs/config"
1558LINKS="$LINKS pc-bios/optionrom/Makefile"
1559LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1560LINKS="$LINKS pc-bios/vof/Makefile"
1561LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1562LINKS="$LINKS tests/avocado tests/data"
1563LINKS="$LINKS tests/qemu-iotests/check"
1564LINKS="$LINKS python"
1565LINKS="$LINKS contrib/plugins/Makefile "
1566for f in $LINKS ; do
1567    if [ -e "$source_path/$f" ]; then
1568        symlink "$source_path/$f" "$f"
1569    fi
1570done
1571
1572echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1573
1574# Mac OS X ships with a broken assembler
1575if have_target i386-softmmu x86_64-softmmu && \
1576        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1577        test "$targetos" != "haiku" && \
1578        probe_target_compiler i386-softmmu; then
1579    subdirs="$subdirs pc-bios/optionrom"
1580    config_mak=pc-bios/optionrom/config.mak
1581    echo "# Automatically generated by configure - do not modify" > $config_mak
1582    echo "TOPSRC_DIR=$source_path" >> $config_mak
1583    write_target_makefile >> $config_mak
1584fi
1585
1586if have_target ppc-softmmu ppc64-softmmu && \
1587        probe_target_compiler ppc-softmmu; then
1588    subdirs="$subdirs pc-bios/vof"
1589    config_mak=pc-bios/vof/config.mak
1590    echo "# Automatically generated by configure - do not modify" > $config_mak
1591    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1592    write_target_makefile >> $config_mak
1593fi
1594
1595# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1596# (which is the lowest architecture level that Clang supports)
1597if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1598    GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1599  write_c_skeleton
1600  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1601  has_z900=$?
1602  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1603    if [ $has_z900 != 0 ]; then
1604      echo "WARNING: Your compiler does not support the z900!"
1605      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1606    fi
1607    subdirs="$subdirs pc-bios/s390-ccw"
1608    config_mak=pc-bios/s390-ccw/config-host.mak
1609    echo "# Automatically generated by configure - do not modify" > $config_mak
1610    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1611    echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1612    write_target_makefile >> $config_mak
1613  fi
1614fi
1615
1616#######################################
1617# generate config-host.mak
1618
1619config_host_mak="config-host.mak"
1620
1621echo "# Automatically generated by configure - do not modify" > $config_host_mak
1622echo >> $config_host_mak
1623
1624echo all: >> $config_host_mak
1625
1626echo "SRC_PATH=$source_path" >> $config_host_mak
1627echo "TARGET_DIRS=$target_list" >> $config_host_mak
1628echo "GDB=$gdb_bin" >> $config_host_mak
1629if test "$container" != no; then
1630    echo "RUNC=$runc" >> $config_host_mak
1631fi
1632echo "SUBDIRS=$subdirs" >> $config_host_mak
1633echo "PYTHON=$python" >> $config_host_mak
1634echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1635echo "MESON=$meson" >> $config_host_mak
1636echo "NINJA=$ninja" >> $config_host_mak
1637echo "EXESUF=$EXESUF" >> $config_host_mak
1638
1639# use included Linux headers for KVM architectures
1640if test "$targetos" = "linux" && test -n "$linux_arch"; then
1641  symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1642fi
1643
1644for target in $target_list; do
1645    target_dir="$target"
1646    target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1647    case $target in
1648        *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1649        *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1650    esac
1651done
1652
1653if test "$default_targets" = "yes"; then
1654  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1655fi
1656
1657# contrib/plugins configuration
1658echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1659echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1660echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1661echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1662echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1663if test "$targetos" = windows; then
1664  echo "DLLTOOL=$dlltool" >> contrib/plugins/$config_host_mak
1665fi
1666if test "$targetos" = darwin; then
1667  echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1668fi
1669if test "$targetos" = windows; then
1670  echo "CONFIG_WIN32=y" >> contrib/plugins/$config_host_mak
1671fi
1672
1673# tests/tcg configuration
1674(config_host_mak=tests/tcg/config-host.mak
1675mkdir -p tests/tcg
1676echo "# Automatically generated by configure - do not modify" > $config_host_mak
1677echo "SRC_PATH=$source_path" >> $config_host_mak
1678
1679tcg_tests_targets=
1680for target in $target_list; do
1681  arch=${target%%-*}
1682
1683  case $target in
1684    xtensa*-linux-user)
1685      # the toolchain is not complete with headers, only build system tests
1686      continue
1687      ;;
1688    *-softmmu)
1689      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1690      qemu="qemu-system-$arch"
1691      ;;
1692    *-linux-user|*-bsd-user)
1693      qemu="qemu-$arch"
1694      ;;
1695  esac
1696
1697  if probe_target_compiler $target || test -n "$container_image"; then
1698      test -n "$container_image" && build_static=y
1699      mkdir -p "tests/tcg/$target"
1700      config_target_mak=tests/tcg/$target/config-target.mak
1701      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1702      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1703      echo "TARGET_NAME=$arch" >> "$config_target_mak"
1704      echo "TARGET=$target" >> "$config_target_mak"
1705      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1706      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1707      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1708
1709      # will GDB work with these binaries?
1710      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1711          echo "GDB=$gdb_bin" >> $config_target_mak
1712      fi
1713
1714      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1715      tcg_tests_targets="$tcg_tests_targets $target"
1716  fi
1717done
1718
1719if test "$tcg" = "enabled"; then
1720    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1721fi
1722)
1723
1724if test "$skip_meson" = no; then
1725  cross="config-meson.cross.new"
1726  meson_quote() {
1727    test $# = 0 && return
1728    echo "'$(echo $* | sed "s/ /','/g")'"
1729  }
1730
1731  echo "# Automatically generated by configure - do not modify" > $cross
1732  echo "[properties]" >> $cross
1733
1734  # unroll any custom device configs
1735  for a in $device_archs; do
1736      eval "c=\$devices_${a}"
1737      echo "${a}-softmmu = '$c'" >> $cross
1738  done
1739
1740  echo "[built-in options]" >> $cross
1741  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1742  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1743  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1744  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1745  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1746
1747  # Only enable by default for git builds and on select OSes
1748  echo "# environment defaults, can still be overridden on " >> $cross
1749  echo "# the command line" >> $cross
1750  if test -e "$source_path/.git" && \
1751      { test "$targetos" = linux || test "$targetos" = "windows"; }; then
1752      echo 'werror = true' >> $cross
1753  fi
1754  echo "[project options]" >> $cross
1755  if test "$SMBD" != ''; then
1756    echo "smbd = $(meson_quote "$SMBD")" >> $cross
1757  fi
1758  if test "${QEMU_GA_MANUFACTURER}" != ''; then
1759    echo "qemu_ga_manufacturer = $(meson_quote "${QEMU_GA_MANUFACTURER}")" >> $cross
1760  fi
1761  if test "${QEMU_GA_DISTRO}" != ''; then
1762    echo "qemu_ga_distro = $(meson_quote "${QEMU_GA_DISTRO}")" >> $cross
1763  fi
1764  if test "${QEMU_GA_VERSION}" != ''; then
1765    echo "qemu_ga_version = $(meson_quote "${QEMU_GA_VERSION}")" >> $cross
1766  fi
1767
1768  echo >> $cross
1769  echo "[binaries]" >> $cross
1770  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1771  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1772  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1773  echo "ar = [$(meson_quote $ar)]" >> $cross
1774  echo "dlltool = [$(meson_quote $dlltool)]" >> $cross
1775  echo "nm = [$(meson_quote $nm)]" >> $cross
1776  echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1777  echo "pkg-config = [$(meson_quote $pkg_config)]" >> $cross
1778  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1779  if has $sdl2_config; then
1780    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1781  fi
1782  echo "strip = [$(meson_quote $strip)]" >> $cross
1783  echo "widl = [$(meson_quote $widl)]" >> $cross
1784  echo "windres = [$(meson_quote $windres)]" >> $cross
1785  echo "windmc = [$(meson_quote $windmc)]" >> $cross
1786  if test "$cross_compile" = "yes"; then
1787    echo "[host_machine]" >> $cross
1788    echo "system = '$targetos'" >> $cross
1789    case "$cpu" in
1790        i386)
1791            echo "cpu_family = 'x86'" >> $cross
1792            ;;
1793        *)
1794            echo "cpu_family = '$cpu'" >> $cross
1795            ;;
1796    esac
1797    echo "cpu = '$cpu'" >> $cross
1798    if test "$bigendian" = "yes" ; then
1799        echo "endian = 'big'" >> $cross
1800    else
1801        echo "endian = 'little'" >> $cross
1802    fi
1803
1804    native="config-meson.native.new"
1805    echo "# Automatically generated by configure - do not modify" > $native
1806    echo "[binaries]" >> $native
1807    echo "c = [$(meson_quote $host_cc)]" >> $native
1808    mv $native config-meson.native
1809    meson_option_add --native-file
1810    meson_option_add config-meson.native
1811  fi
1812  mv $cross config-meson.cross
1813  meson_add_machine_file config-meson.cross
1814  if test -f "$source_path/configs/meson/$targetos.txt"; then
1815    meson_add_machine_file $source_path/configs/meson/$targetos.txt
1816  fi
1817
1818  rm -rf meson-private meson-info meson-logs
1819
1820  test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1821  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1822  test "$static" = yes && meson_option_add -Dprefer_static=true
1823  test "$pie" = no && meson_option_add -Db_pie=false
1824
1825  # QEMU options
1826  test "$cfi" != false && meson_option_add "-Dcfi=$cfi" "-Db_lto=$cfi"
1827  test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1828  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1829  test "$plugins" = yes && meson_option_add "-Dplugins=true"
1830  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1831  run_meson() {
1832    NINJA=$ninja $meson setup "$@" "$PWD" "$source_path"
1833  }
1834  eval run_meson $meson_options
1835  if test "$?" -ne 0 ; then
1836      error_exit "meson setup failed"
1837  fi
1838  echo "$meson" > build.ninja.stamp
1839else
1840  if test -f meson-private/cmd_line.txt; then
1841    # Adjust old command line options that were removed
1842    # sed -i is not portable
1843    perl -i -ne '
1844      /^sphinx_build/ && next;
1845      print;' meson-private/cmd_line.txt
1846  fi
1847fi
1848
1849# Save the configure command line for later reuse.
1850cat <<EOD >config.status
1851#!/bin/sh
1852# Generated by configure.
1853# Run this file to recreate the current configuration.
1854# Compiler output produced by configure, useful for debugging
1855# configure, is in config.log if it exists.
1856EOD
1857
1858preserve_env() {
1859    envname=$1
1860
1861    eval envval=\$$envname
1862
1863    if test -n "$envval"
1864    then
1865	echo "$envname='$envval'" >> config.status
1866	echo "export $envname" >> config.status
1867    else
1868	echo "unset $envname" >> config.status
1869    fi
1870}
1871
1872# Preserve various env variables that influence what
1873# features/build target configure will detect
1874preserve_env AR
1875preserve_env AS
1876preserve_env CC
1877preserve_env CFLAGS
1878preserve_env CXX
1879preserve_env CXXFLAGS
1880preserve_env DLLTOOL
1881preserve_env LD
1882preserve_env LDFLAGS
1883preserve_env LD_LIBRARY_PATH
1884preserve_env NM
1885preserve_env OBJCFLAGS
1886preserve_env OBJCOPY
1887preserve_env PATH
1888preserve_env PKG_CONFIG
1889preserve_env PKG_CONFIG_LIBDIR
1890preserve_env PKG_CONFIG_PATH
1891preserve_env PYTHON
1892preserve_env QEMU_GA_MANUFACTURER
1893preserve_env QEMU_GA_DISTRO
1894preserve_env QEMU_GA_VERSION
1895preserve_env SDL2_CONFIG
1896preserve_env SMBD
1897preserve_env STRIP
1898preserve_env WIDL
1899preserve_env WINDRES
1900preserve_env WINDMC
1901
1902printf "exec" >>config.status
1903for i in "$0" "$@"; do
1904  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1905done
1906echo ' "$@"' >>config.status
1907chmod +x config.status
1908
1909rm -r "$TMPDIR1"
1910