xref: /openbmc/qemu/configure (revision 42fe7499)
1#!/bin/sh
2#
3# qemu configure script (c) 2003 Fabrice Bellard
4#
5
6# Unset some variables known to interfere with behavior of common tools,
7# just as autoconf does.  Unlike autoconf, we assume that unset exists.
8unset CLICOLOR_FORCE GREP_OPTIONS BASH_ENV ENV MAIL MAILPATH CDPATH
9
10# Don't allow CCACHE, if present, to use cached results of compile tests!
11export CCACHE_RECACHE=yes
12
13# make source path absolute
14source_path=$(cd "$(dirname -- "$0")"; pwd)
15
16if test "$PWD" = "$source_path"
17then
18    echo "Using './build' as the directory for build output"
19
20    MARKER=build/auto-created-by-configure
21
22    if test -e build
23    then
24        if test -f $MARKER
25        then
26           rm -rf build
27        else
28            echo "ERROR: ./build dir already exists and was not previously created by configure"
29            exit 1
30        fi
31    fi
32
33    if ! mkdir build || ! touch $MARKER
34    then
35        echo "ERROR: Could not create ./build directory. Check the permissions on"
36        echo "your source directory, or try doing an out-of-tree build."
37        exit 1
38    fi
39
40    cat > GNUmakefile <<'EOF'
41# This file is auto-generated by configure to support in-source tree
42# 'make' command invocation
43
44ifeq ($(MAKECMDGOALS),)
45recurse: all
46endif
47
48.NOTPARALLEL: %
49%: force
50	@echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
51	@$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
52	@if test "$(MAKECMDGOALS)" = "distclean" && \
53	    test -e build/auto-created-by-configure ; \
54	then \
55	    rm -rf build GNUmakefile ; \
56	fi
57force: ;
58.PHONY: force
59GNUmakefile: ;
60
61EOF
62    cd build
63    exec "$source_path/configure" "$@"
64fi
65
66# Temporary directory used for files created while
67# configure runs. Since it is in the build directory
68# we can safely blow away any previous version of it
69# (and we need not jump through hoops to try to delete
70# it when configure exits.)
71TMPDIR1="config-temp"
72rm -rf "${TMPDIR1}"
73if ! mkdir -p "${TMPDIR1}"; then
74    echo "ERROR: failed to create temporary directory"
75    exit 1
76fi
77
78TMPB="qemu-conf"
79TMPC="${TMPDIR1}/${TMPB}.c"
80TMPO="${TMPDIR1}/${TMPB}.o"
81TMPE="${TMPDIR1}/${TMPB}.exe"
82
83rm -f config.log
84
85# Print a helpful header at the top of config.log
86echo "# QEMU configure log $(date)" >> config.log
87printf "# Configured with:" >> config.log
88# repeat the invocation to log and stdout for CI
89invoke=$(printf " '%s'" "$0" "$@")
90test -n "$GITLAB_CI" && echo "configuring with: $invoke"
91{ echo "$invoke"; echo; echo "#"; } >> config.log
92
93quote_sh() {
94    printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
95}
96
97print_error() {
98    (echo
99    echo "ERROR: $1"
100    while test -n "$2"; do
101        echo "       $2"
102        shift
103    done
104    echo) >&2
105}
106
107error_exit() {
108    print_error "$@"
109    exit 1
110}
111
112do_compiler() {
113  # Run the compiler, capturing its output to the log. First argument
114  # is compiler binary to execute.
115  compiler="$1"
116  shift
117  if test -n "$BASH_VERSION"; then eval '
118      echo >>config.log "
119funcs: ${FUNCNAME[*]}
120lines: ${BASH_LINENO[*]}"
121  '; fi
122  echo $compiler "$@" >> config.log
123  $compiler "$@" >> config.log 2>&1 || return $?
124}
125
126do_cc() {
127    do_compiler "$cc" $CPU_CFLAGS "$@"
128}
129
130compile_object() {
131  local_cflags="$1"
132  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
133}
134
135compile_prog() {
136  local_cflags="$1"
137  local_ldflags="$2"
138  do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
139      $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
140}
141
142# symbolically link $1 to $2.  Portable version of "ln -sf".
143symlink() {
144  rm -rf "$2"
145  mkdir -p "$(dirname "$2")"
146  ln -s "$1" "$2"
147}
148
149# check whether a command is available to this shell (may be either an
150# executable or a builtin)
151has() {
152    type "$1" >/dev/null 2>&1
153}
154
155version_ge () {
156    local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
157    local_ver2=$(echo "$2" | tr . ' ')
158    while true; do
159        set x $local_ver1
160        local_first=${2-0}
161        # 'shift 2' if $2 is set, or 'shift' if $2 is not set
162        shift ${2:+2}
163        local_ver1=$*
164        set x $local_ver2
165        # the second argument finished, the first must be greater or equal
166        test $# = 1 && return 0
167        test $local_first -lt $2 && return 1
168        test $local_first -gt $2 && return 0
169        shift ${2:+2}
170        local_ver2=$*
171    done
172}
173
174if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
175then
176  error_exit "main directory cannot contain spaces nor colons"
177fi
178
179# parse CC options first; some compiler tests are used to establish
180# some defaults, based on the host environment
181
182# default parameters
183cpu=""
184cross_compile="no"
185cross_prefix=""
186host_cc="cc"
187EXTRA_CFLAGS=""
188EXTRA_CXXFLAGS=""
189EXTRA_OBJCFLAGS=""
190EXTRA_LDFLAGS=""
191
192# Default value for a variable defining feature "foo".
193#  * foo="no"  feature will only be used if --enable-foo arg is given
194#  * foo=""    feature will be searched for, and if found, will be used
195#              unless --disable-foo is given
196#  * foo="yes" this value will only be set by --enable-foo flag.
197#              feature will searched for,
198#              if not found, configure exits with error
199#
200# Always add --enable-foo and --disable-foo command line args.
201# Distributions want to ensure that several features are compiled in, and it
202# is impossible without a --enable-foo that exits if a feature is not found.
203default_feature=""
204
205for opt do
206  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
207  case "$opt" in
208  --cross-prefix=*) cross_prefix="$optarg"
209                    cross_compile="yes"
210  ;;
211  --cc=*) CC="$optarg"
212  ;;
213  --cxx=*) CXX="$optarg"
214  ;;
215  --objcc=*) objcc="$optarg"
216  ;;
217  --cpu=*) cpu="$optarg"
218  ;;
219  --extra-cflags=*)
220    EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
221    EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
222    EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
223    ;;
224  --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
225  ;;
226  --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
227  ;;
228  --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
229  ;;
230  --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
231  ;;
232  --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
233                      eval "cross_cc_cflags_${cc_arch}=\$optarg"
234  ;;
235  --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
236                eval "cross_cc_${cc_arch}=\$optarg"
237  ;;
238  --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
239  ;;
240  --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
241                    eval "cross_prefix_${cc_arch}=\$optarg"
242  ;;
243  --without-default-features) default_feature="no"
244  ;;
245  esac
246done
247
248default_cflags='-O2 -g'
249git_submodules_action="update"
250git="git"
251docs="auto"
252EXESUF=""
253prefix="/usr/local"
254qemu_suffix="qemu"
255softmmu="yes"
256linux_user=""
257bsd_user=""
258plugins="$default_feature"
259subdirs=""
260ninja=""
261python=
262download="enabled"
263bindir="bin"
264skip_meson=no
265use_containers="yes"
266gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
267gdb_arches=""
268werror=""
269
270# Don't accept a target_list environment variable.
271unset target_list
272unset target_list_exclude
273
274# The following Meson options are handled manually (still they
275# are included in the automatically generated help message)
276# because they automatically enable/disable other options
277tcg="auto"
278cfi="false"
279
280# Meson has PIE as a boolean rather than enabled/disabled/auto,
281# and we also need to check for -static-pie before Meson runs
282# which requires knowing whether --static is enabled.
283pie=""
284static="no"
285
286# Preferred compiler:
287#  ${CC} (if set)
288#  ${cross_prefix}gcc (if cross-prefix specified)
289#  system compiler
290if test -z "${CC}${cross_prefix}"; then
291  cc="cc"
292else
293  cc="${CC-${cross_prefix}gcc}"
294fi
295
296if test -z "${CXX}${cross_prefix}"; then
297  cxx="c++"
298else
299  cxx="${CXX-${cross_prefix}g++}"
300fi
301
302# Preferred ObjC compiler:
303# $objcc (if set, i.e. via --objcc option)
304# ${cross_prefix}clang (if cross-prefix specified)
305# clang (if available)
306# $cc
307if test -z "${objcc}${cross_prefix}"; then
308  if has clang; then
309    objcc=clang
310  else
311    objcc="$cc"
312  fi
313else
314  objcc="${objcc-${cross_prefix}clang}"
315fi
316
317ar="${AR-${cross_prefix}ar}"
318as="${AS-${cross_prefix}as}"
319ccas="${CCAS-$cc}"
320objcopy="${OBJCOPY-${cross_prefix}objcopy}"
321ld="${LD-${cross_prefix}ld}"
322ranlib="${RANLIB-${cross_prefix}ranlib}"
323nm="${NM-${cross_prefix}nm}"
324smbd="$SMBD"
325strip="${STRIP-${cross_prefix}strip}"
326widl="${WIDL-${cross_prefix}widl}"
327windres="${WINDRES-${cross_prefix}windres}"
328windmc="${WINDMC-${cross_prefix}windmc}"
329pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
330sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
331
332check_define() {
333cat > $TMPC <<EOF
334#if !defined($1)
335#error $1 not defined
336#endif
337int main(void) { return 0; }
338EOF
339  compile_object
340}
341
342write_c_skeleton() {
343    cat > $TMPC <<EOF
344int main(void) { return 0; }
345EOF
346}
347
348if check_define __linux__ ; then
349  targetos=linux
350elif check_define _WIN32 ; then
351  targetos=windows
352elif check_define __OpenBSD__ ; then
353  targetos=openbsd
354elif check_define __sun__ ; then
355  targetos=sunos
356elif check_define __HAIKU__ ; then
357  targetos=haiku
358elif check_define __FreeBSD__ ; then
359  targetos=freebsd
360elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
361  targetos=gnu/kfreebsd
362elif check_define __DragonFly__ ; then
363  targetos=dragonfly
364elif check_define __NetBSD__; then
365  targetos=netbsd
366elif check_define __APPLE__; then
367  targetos=darwin
368else
369  # This is a fatal error, but don't report it yet, because we
370  # might be going to just print the --help text, or it might
371  # be the result of a missing compiler.
372  targetos=bogus
373fi
374
375# OS specific
376
377case $targetos in
378windows)
379  plugins="no"
380  pie="no"
381;;
382haiku)
383  pie="no"
384;;
385esac
386
387if test ! -z "$cpu" ; then
388  # command line argument
389  :
390elif check_define __i386__ ; then
391  cpu="i386"
392elif check_define __x86_64__ ; then
393  if check_define __ILP32__ ; then
394    cpu="x32"
395  else
396    cpu="x86_64"
397  fi
398elif check_define __sparc__ ; then
399  if check_define __arch64__ ; then
400    cpu="sparc64"
401  else
402    cpu="sparc"
403  fi
404elif check_define _ARCH_PPC ; then
405  if check_define _ARCH_PPC64 ; then
406    if check_define _LITTLE_ENDIAN ; then
407      cpu="ppc64le"
408    else
409      cpu="ppc64"
410    fi
411  else
412    cpu="ppc"
413  fi
414elif check_define __mips__ ; then
415  cpu="mips"
416elif check_define __s390__ ; then
417  if check_define __s390x__ ; then
418    cpu="s390x"
419  else
420    cpu="s390"
421  fi
422elif check_define __riscv ; then
423  if check_define _LP64 ; then
424    cpu="riscv64"
425  else
426    cpu="riscv32"
427  fi
428elif check_define __arm__ ; then
429  cpu="arm"
430elif check_define __aarch64__ ; then
431  cpu="aarch64"
432elif check_define __loongarch64 ; then
433  cpu="loongarch64"
434else
435  # Using uname is really broken, but it is just a fallback for architectures
436  # that are going to use TCI anyway
437  cpu=$(uname -m)
438  echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
439fi
440
441# Normalise host CPU name to the values used by Meson cross files and in source
442# directories, and set multilib cflags.  The canonicalization isn't really
443# necessary, because the architectures that we check for should not hit the
444# 'uname -m' case, but better safe than sorry in case --cpu= is used.
445#
446# Note that this case should only have supported host CPUs, not guests.
447# Please keep it sorted and synchronized with meson.build's host_arch.
448host_arch=
449linux_arch=
450case "$cpu" in
451  aarch64)
452    host_arch=aarch64
453    linux_arch=arm64
454    ;;
455
456  armv*b|armv*l|arm)
457    cpu=arm
458    host_arch=arm
459    linux_arch=arm
460    ;;
461
462  i386|i486|i586|i686)
463    cpu="i386"
464    host_arch=i386
465    linux_arch=x86
466    CPU_CFLAGS="-m32"
467    ;;
468
469  loongarch*)
470    cpu=loongarch64
471    host_arch=loongarch64
472    ;;
473
474  mips64*)
475    cpu=mips64
476    host_arch=mips
477    linux_arch=mips
478    ;;
479  mips*)
480    cpu=mips
481    host_arch=mips
482    linux_arch=mips
483    ;;
484
485  ppc)
486    host_arch=ppc
487    linux_arch=powerpc
488    CPU_CFLAGS="-m32"
489    ;;
490  ppc64)
491    host_arch=ppc64
492    linux_arch=powerpc
493    CPU_CFLAGS="-m64 -mbig-endian"
494    ;;
495  ppc64le)
496    cpu=ppc64
497    host_arch=ppc64
498    linux_arch=powerpc
499    CPU_CFLAGS="-m64 -mlittle-endian"
500    ;;
501
502  riscv32 | riscv64)
503    host_arch=riscv
504    linux_arch=riscv
505    ;;
506
507  s390)
508    linux_arch=s390
509    CPU_CFLAGS="-m31"
510    ;;
511  s390x)
512    host_arch=s390x
513    linux_arch=s390
514    CPU_CFLAGS="-m64"
515    ;;
516
517  sparc|sun4[cdmuv])
518    cpu=sparc
519    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
520    ;;
521  sparc64)
522    host_arch=sparc64
523    CPU_CFLAGS="-m64 -mcpu=ultrasparc"
524    ;;
525
526  x32)
527    cpu="x86_64"
528    host_arch=x86_64
529    linux_arch=x86
530    CPU_CFLAGS="-mx32"
531    ;;
532  x86_64|amd64)
533    cpu="x86_64"
534    host_arch=x86_64
535    linux_arch=x86
536    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
537    # If we truly care, we should simply detect this case at
538    # runtime and generate the fallback to serial emulation.
539    CPU_CFLAGS="-m64 -mcx16"
540    ;;
541esac
542
543if test -n "$host_arch" && {
544    ! test -d "$source_path/linux-user/include/host/$host_arch" ||
545    ! test -d "$source_path/common-user/host/$host_arch"; }; then
546    error_exit "linux-user/include/host/$host_arch does not exist." \
547       "This is a bug in the configure script, please report it."
548fi
549if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
550    error_exit "linux-headers/asm-$linux_arch does not exist." \
551       "This is a bug in the configure script, please report it."
552fi
553
554check_py_version() {
555    # We require python >= 3.8.
556    # NB: a True python conditional creates a non-zero return code (Failure)
557    "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
558}
559
560first_python=
561if test -z "${PYTHON}"; then
562    # A bare 'python' is traditionally python 2.x, but some distros
563    # have it as python 3.x, so check in both places.
564    for binary in python3 python python3.11 python3.10 python3.9 python3.8; do
565        if has "$binary"; then
566            python=$(command -v "$binary")
567            if check_py_version "$python"; then
568                # This one is good.
569                first_python=
570                break
571            else
572                first_python=$python
573            fi
574        fi
575    done
576else
577    # Same as above, but only check the environment variable.
578    has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
579    python=$(command -v "$PYTHON")
580    if check_py_version "$python"; then
581        # This one is good.
582        first_python=
583    else
584        first_python=$first_python
585    fi
586fi
587
588# Check for ancillary tools used in testing
589genisoimage=
590for binary in genisoimage mkisofs
591do
592    if has $binary
593    then
594        genisoimage=$(command -v "$binary")
595        break
596    fi
597done
598
599if test "$targetos" = "windows" ; then
600  EXESUF=".exe"
601  prefix="/qemu"
602  bindir=""
603  qemu_suffix=""
604fi
605
606meson_option_build_array() {
607  printf '['
608  (if test "$targetos" = windows; then
609    IFS=\;
610  else
611    IFS=:
612  fi
613  for e in $1; do
614    printf '"""'
615    # backslash escape any '\' and '"' characters
616    printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
617    printf '""",'
618  done)
619  printf ']\n'
620}
621
622. "$source_path/scripts/meson-buildoptions.sh"
623
624meson_options=
625meson_option_add() {
626  meson_options="$meson_options $(quote_sh "$1")"
627}
628meson_option_parse() {
629  meson_options="$meson_options $(_meson_option_parse "$@")"
630  if test $? -eq 1; then
631    echo "ERROR: unknown option $1"
632    echo "Try '$0 --help' for more information"
633    exit 1
634  fi
635}
636
637for opt do
638  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
639  case "$opt" in
640  --help|-h) show_help=yes
641  ;;
642  --version|-V) exec cat "$source_path/VERSION"
643  ;;
644  --prefix=*) prefix="$optarg"
645  ;;
646  --cross-prefix=*)
647  ;;
648  --cc=*)
649  ;;
650  --host-cc=*) host_cc="$optarg"
651  ;;
652  --cxx=*)
653  ;;
654  --objcc=*)
655  ;;
656  --make=*)
657  ;;
658  --install=*)
659  ;;
660  --python=*) python="$optarg"
661  ;;
662  --skip-meson) skip_meson=yes
663  ;;
664  --ninja=*) ninja="$optarg"
665  ;;
666  --smbd=*) smbd="$optarg"
667  ;;
668  --extra-cflags=*)
669  ;;
670  --extra-cxxflags=*)
671  ;;
672  --extra-objcflags=*)
673  ;;
674  --extra-ldflags=*)
675  ;;
676  --cross-cc-*)
677  ;;
678  --cross-prefix-*)
679  ;;
680  --enable-docs) docs=enabled
681  ;;
682  --disable-docs) docs=disabled
683  ;;
684  --cpu=*)
685  ;;
686  --target-list=*) target_list="$optarg"
687                   if test "$target_list_exclude"; then
688                       error_exit "Can't mix --target-list with --target-list-exclude"
689                   fi
690  ;;
691  --target-list-exclude=*) target_list_exclude="$optarg"
692                   if test "$target_list"; then
693                       error_exit "Can't mix --target-list-exclude with --target-list"
694                   fi
695  ;;
696  --with-default-devices) meson_option_add -Ddefault_devices=true
697  ;;
698  --without-default-devices) meson_option_add -Ddefault_devices=false
699  ;;
700  --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
701  ;;
702  --with-devices-*) device_arch=${opt#--with-devices-};
703                    device_arch=${device_arch%%=*}
704                    cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
705                    if test -f "$cf"; then
706                        device_archs="$device_archs $device_arch"
707                        eval "devices_${device_arch}=\$optarg"
708                    else
709                        error_exit "File $cf does not exist"
710                    fi
711  ;;
712  --without-default-features) # processed above
713  ;;
714  --static) static="yes"
715  ;;
716  --bindir=*) bindir="$optarg"
717  ;;
718  --with-suffix=*) qemu_suffix="$optarg"
719  ;;
720  --host=*|--build=*|\
721  --disable-dependency-tracking|\
722  --sbindir=*|--sharedstatedir=*|\
723  --oldincludedir=*|--datarootdir=*|--infodir=*|\
724  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
725    # These switches are silently ignored, for compatibility with
726    # autoconf-generated configure scripts. This allows QEMU's
727    # configure to be used by RPM and similar macros that set
728    # lots of directory switches by default.
729  ;;
730  --enable-debug)
731      # Enable debugging options that aren't excessively noisy
732      meson_option_parse --enable-debug-tcg ""
733      meson_option_parse --enable-debug-graph-lock ""
734      meson_option_parse --enable-debug-mutex ""
735      meson_option_add -Doptimization=0
736      default_cflags='-O0 -g'
737  ;;
738  --disable-tcg) tcg="disabled"
739                 plugins="no"
740  ;;
741  --enable-tcg) tcg="enabled"
742  ;;
743  --disable-system) softmmu="no"
744  ;;
745  --enable-system) softmmu="yes"
746  ;;
747  --disable-user)
748      linux_user="no" ;
749      bsd_user="no" ;
750  ;;
751  --enable-user) ;;
752  --disable-linux-user) linux_user="no"
753  ;;
754  --enable-linux-user) linux_user="yes"
755  ;;
756  --disable-bsd-user) bsd_user="no"
757  ;;
758  --enable-bsd-user) bsd_user="yes"
759  ;;
760  --enable-pie) pie="yes"
761  ;;
762  --disable-pie) pie="no"
763  ;;
764  --enable-werror) werror="yes"
765  ;;
766  --disable-werror) werror="no"
767  ;;
768  --enable-cfi)
769      cfi="true";
770      meson_option_add -Db_lto=true
771  ;;
772  --disable-cfi) cfi="false"
773  ;;
774  --disable-download) download="disabled"; git_submodules_action=validate;
775  ;;
776  --enable-download) download="enabled"; git_submodules_action=update;
777  ;;
778  --enable-plugins) if test "$targetos" = "windows"; then
779                        error_exit "TCG plugins not currently supported on Windows platforms"
780                    else
781                        plugins="yes"
782                    fi
783  ;;
784  --disable-plugins) plugins="no"
785  ;;
786  --enable-containers) use_containers="yes"
787  ;;
788  --disable-containers) use_containers="no"
789  ;;
790  --gdb=*) gdb_bin="$optarg"
791  ;;
792  # everything else has the same name in configure and meson
793  --*) meson_option_parse "$opt" "$optarg"
794  ;;
795  # Pass through -Dxxxx options to meson
796  -D*) meson_options="$meson_options $opt"
797  ;;
798  esac
799done
800
801if ! test -e "$source_path/.git"
802then
803    git_submodules_action="validate"
804fi
805
806# test for any invalid configuration combinations
807if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
808    error_exit "Can't enable plugins on non-TCG builds"
809fi
810
811if ! test -f "$source_path/subprojects/keycodemapdb/README" \
812    && test "$download" = disabled
813then
814    echo
815    echo "ERROR: missing subprojects"
816    echo
817    if test -e "$source_path/.git"; then
818        echo "--disable-download specified but subprojects were not"
819        echo 'checked out.  Please invoke "meson subprojects download"'
820        echo "before configuring QEMU, or remove --disable-download"
821        echo "from the command line."
822    else
823        echo "This is not a GIT checkout but subproject content appears to"
824        echo "be missing. Do not use 'git archive' or GitHub download links"
825        echo "to acquire QEMU source archives. Non-GIT builds are only"
826        echo "supported with source archives linked from:"
827        echo
828        echo "  https://www.qemu.org/download/#source"
829        echo
830        echo "Developers working with GIT can use scripts/archive-source.sh"
831        echo "if they need to create valid source archives."
832    fi
833    echo
834    exit 1
835fi
836
837default_target_list=""
838mak_wilds=""
839
840if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
841    if [ "$linux_user" != no ]; then
842        if [ "$targetos" = linux ]; then
843            linux_user=yes
844        elif [ "$linux_user" = yes ]; then
845            error_exit "linux-user not supported on this architecture"
846        fi
847        if [ "$linux_user" = "yes" ]; then
848            mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
849        fi
850    fi
851    if [ "$bsd_user" != no ]; then
852        if [ "$bsd_user" = "" ]; then
853            test $targetos = freebsd && bsd_user=yes
854        fi
855        if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
856            error_exit "bsd-user not supported on this host OS"
857        fi
858        if [ "$bsd_user" = "yes" ]; then
859            mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
860        fi
861    fi
862else
863    if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
864        error_exit "user mode emulation not supported on this architecture"
865    fi
866fi
867if [ "$softmmu" = "yes" ]; then
868    mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
869fi
870
871for config in $mak_wilds; do
872    target="$(basename "$config" .mak)"
873    if echo "$target_list_exclude" | grep -vq "$target"; then
874        default_target_list="${default_target_list} $target"
875    fi
876done
877
878if test x"$show_help" = x"yes" ; then
879cat << EOF
880
881Usage: configure [options]
882Options: [defaults in brackets after descriptions]
883
884Standard options:
885  --help                   print this message
886  --prefix=PREFIX          install in PREFIX [$prefix]
887  --target-list=LIST       set target list (default: build all)
888$(echo Available targets: $default_target_list | \
889  fold -s -w 53 | sed -e 's/^/                           /')
890  --target-list-exclude=LIST exclude a set of targets from the default target-list
891
892Advanced options (experts only):
893  -Dmesonoptname=val       passthrough option to meson unmodified
894  --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
895  --cc=CC                  use C compiler CC [$cc]
896  --host-cc=CC             when cross compiling, use C compiler CC for code run
897                           at build time [$host_cc]
898  --cxx=CXX                use C++ compiler CXX [$cxx]
899  --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
900  --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
901  --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
902  --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
903  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
904  --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
905  --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
906  --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
907  --python=PYTHON          use specified python [$python]
908  --ninja=NINJA            use specified ninja [$ninja]
909  --smbd=SMBD              use specified smbd [$smbd]
910  --static                 enable static build [$static]
911  --bindir=PATH            install binaries in PATH
912  --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
913  --without-default-features default all --enable-* options to "disabled"
914  --without-default-devices  do not include any device that is not needed to
915                           start the emulator (only use if you are including
916                           desired devices in configs/devices/)
917  --with-devices-ARCH=NAME override default configs/devices
918  --enable-debug           enable common debug build options
919  --disable-werror         disable compilation abort on warning
920  --cpu=CPU                Build for host CPU [$cpu]
921  --enable-plugins
922                           enable plugins via shared library loading
923  --disable-containers     don't use containers for cross-building
924  --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
925EOF
926  meson_options_help
927cat << EOF
928  system          all system emulation targets
929  user            supported user emulation targets
930  linux-user      all linux usermode emulation targets
931  bsd-user        all BSD usermode emulation targets
932  pie             Position Independent Executables
933
934NOTE: The object files are built at the place where configure is launched
935EOF
936exit 0
937fi
938
939# Remove old dependency files to make sure that they get properly regenerated
940rm -f ./*/config-devices.mak.d
941
942if test -z "$python"
943then
944    # If first_python is set, there was a binary somewhere even though
945    # it was not suitable.  Use it for the error message.
946    if test -n "$first_python"; then
947        error_exit "Cannot use '$first_python', Python >= 3.7 is required." \
948            "Use --python=/path/to/python to specify a supported Python."
949    else
950        error_exit "Python not found. Use --python=/path/to/python"
951    fi
952fi
953
954if ! check_py_version "$python"; then
955  error_exit "Cannot use '$python', Python >= 3.8 is required." \
956             "Use --python=/path/to/python to specify a supported Python." \
957             "Maybe try:" \
958             "  openSUSE Leap 15.3+: zypper install python39" \
959             "  CentOS 8: dnf install python38"
960fi
961
962# Resolve PATH
963python="$(command -v "$python")"
964
965# Create a Python virtual environment using our configured python.
966# The stdout of this script will be the location of a symlink that
967# points to the configured Python.
968# Entry point scripts for pip, meson, and sphinx are generated if those
969# packages are present.
970
971# Defaults assumed for now:
972# - venv is cleared if it exists already;
973# - venv is allowed to use system packages;
974# - all setup can be performed offline;
975# - missing packages may be fetched from PyPI,
976#   unless --disable-download is passed.
977# - pip is not installed into the venv when possible,
978#   but ensurepip is called as a fallback when necessary.
979
980echo "python determined to be '$python'"
981echo "python version: $($python --version)"
982
983python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
984if test "$?" -ne 0 ; then
985    error_exit "python venv creation failed"
986fi
987
988# Suppress writing compiled files
989python="$python -B"
990mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
991
992# Finish preparing the virtual environment using vendored .whl files
993
994if $python -c 'import sys; sys.exit(sys.version_info >= (3,11))'; then
995    $mkvenv ensure --dir "${source_path}/python/wheels" \
996        'tomli>=1.2.0' || exit 1
997fi
998$mkvenv ensuregroup --dir "${source_path}/python/wheels" \
999     ${source_path}/pythondeps.toml meson || exit 1
1000
1001# At this point, we expect Meson to be installed and available.
1002# We expect mkvenv or pip to have created pyvenv/bin/meson for us.
1003# We ignore PATH completely here: we want to use the venv's Meson
1004# *exclusively*.
1005
1006meson="$(cd pyvenv/bin; pwd)/meson"
1007
1008# Conditionally ensure Sphinx is installed.
1009
1010mkvenv_flags=""
1011if test "$download" = "enabled" -a "$docs" = "enabled" ; then
1012    mkvenv_flags="--online"
1013fi
1014
1015if test "$docs" != "disabled" ; then
1016    if ! $mkvenv ensuregroup \
1017         $mkvenv_flags \
1018         ${source_path}/pythondeps.toml docs;
1019    then
1020        if test "$docs" = "enabled" ; then
1021            exit 1
1022        fi
1023        echo "Sphinx not found/usable, disabling docs."
1024        docs=disabled
1025    else
1026        docs=enabled
1027    fi
1028fi
1029
1030# Probe for ninja
1031
1032if test -z "$ninja"; then
1033    for c in ninja ninja-build samu; do
1034        if has $c; then
1035            ninja=$(command -v "$c")
1036            break
1037        fi
1038    done
1039    if test -z "$ninja"; then
1040      error_exit "Cannot find Ninja"
1041    fi
1042fi
1043
1044# Consult white-list to determine whether to enable werror
1045# by default.  Only enable by default for git builds
1046if test -z "$werror" ; then
1047    if test -e "$source_path/.git" && \
1048        { test "$targetos" = linux || test "$targetos" = "windows"; }; then
1049        werror="yes"
1050    else
1051        werror="no"
1052    fi
1053fi
1054
1055if test "$targetos" = "bogus"; then
1056    # Now that we know that we're not printing the help and that
1057    # the compiler works (so the results of the check_defines we used
1058    # to identify the OS are reliable), if we didn't recognize the
1059    # host OS we should stop now.
1060    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1061fi
1062
1063if test "$static" = "yes" ; then
1064  if test "$plugins" = "yes"; then
1065    error_exit "static and plugins are mutually incompatible"
1066  else
1067    plugins="no"
1068  fi
1069fi
1070test "$plugins" = "" && plugins=yes
1071if test "$plugins" = "yes"; then
1072  subdirs="$subdirs contrib/plugins"
1073fi
1074
1075cat > $TMPC << EOF
1076
1077#ifdef __linux__
1078#  define THREAD __thread
1079#else
1080#  define THREAD
1081#endif
1082static THREAD int tls_var;
1083int main(void) { return tls_var; }
1084EOF
1085
1086if test "$static" = "yes"; then
1087  if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1088    pie="yes"
1089  elif test "$pie" = "yes"; then
1090    error_exit "-static-pie not available due to missing toolchain support"
1091  else
1092    pie="no"
1093  fi
1094elif test "$pie" != "no"; then
1095  if compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1096    pie="yes"
1097  elif test "$pie" = "yes"; then
1098    error_exit "PIE not available due to missing toolchain support"
1099  else
1100    echo "Disabling PIE due to missing toolchain support"
1101    pie="no"
1102  fi
1103fi
1104
1105##########################################
1106
1107if test -z "${target_list+xxx}" ; then
1108    default_targets=yes
1109    for target in $default_target_list; do
1110        target_list="$target_list $target"
1111    done
1112    target_list="${target_list# }"
1113else
1114    default_targets=no
1115    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1116    for target in $target_list; do
1117        # Check that we recognised the target name; this allows a more
1118        # friendly error message than if we let it fall through.
1119        case " $default_target_list " in
1120            *" $target "*)
1121                ;;
1122            *)
1123                error_exit "Unknown target name '$target'"
1124                ;;
1125        esac
1126    done
1127fi
1128
1129if test "$tcg" = "auto"; then
1130  if test -z "$target_list"; then
1131    tcg="disabled"
1132  else
1133    tcg="enabled"
1134  fi
1135fi
1136
1137##########################################
1138# big/little endian test
1139cat > $TMPC << EOF
1140#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1141# error LITTLE
1142#endif
1143int main(void) { return 0; }
1144EOF
1145
1146if ! compile_prog ; then
1147  bigendian="no"
1148else
1149  cat > $TMPC << EOF
1150#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1151# error BIG
1152#endif
1153int main(void) { return 0; }
1154EOF
1155
1156  if ! compile_prog ; then
1157    bigendian="yes"
1158  else
1159    echo big/little test failed
1160    exit 1
1161  fi
1162fi
1163
1164########################################
1165# check if ccache is interfering with
1166# semantic analysis of macros
1167
1168unset CCACHE_CPP2
1169ccache_cpp2=no
1170cat > $TMPC << EOF
1171static const int Z = 1;
1172#define fn() ({ Z; })
1173#define TAUT(X) ((X) == Z)
1174#define PAREN(X, Y) (X == Y)
1175#define ID(X) (X)
1176int main(void)
1177{
1178    int x = 0, y = 0;
1179    x = ID(x);
1180    x = fn();
1181    fn();
1182    if (PAREN(x, y)) return 0;
1183    if (TAUT(Z)) return 0;
1184    return 0;
1185}
1186EOF
1187
1188if ! compile_object "-Werror"; then
1189    ccache_cpp2=yes
1190fi
1191
1192##########################################
1193# functions to probe cross compilers
1194
1195container="no"
1196runc=""
1197if test $use_containers = "yes" && (has "docker" || has "podman"); then
1198    case $($python "$source_path"/tests/docker/docker.py probe) in
1199        *docker) container=docker ;;
1200        podman) container=podman ;;
1201        no) container=no ;;
1202    esac
1203    if test "$container" != "no"; then
1204        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1205        runc=$($python "$source_path"/tests/docker/docker.py probe)
1206    fi
1207fi
1208
1209# cross compilers defaults, can be overridden with --cross-cc-ARCH
1210: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1211: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1212: ${cross_prefix_alpha="alpha-linux-gnu-"}
1213: ${cross_prefix_arm="arm-linux-gnueabihf-"}
1214: ${cross_prefix_armeb="$cross_prefix_arm"}
1215: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1216: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1217: ${cross_prefix_hppa="hppa-linux-gnu-"}
1218: ${cross_prefix_i386="i686-linux-gnu-"}
1219: ${cross_prefix_m68k="m68k-linux-gnu-"}
1220: ${cross_prefix_microblaze="microblaze-linux-musl-"}
1221: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1222: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1223: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1224: ${cross_prefix_mips="mips-linux-gnu-"}
1225: ${cross_prefix_nios2="nios2-linux-gnu-"}
1226: ${cross_prefix_ppc="powerpc-linux-gnu-"}
1227: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1228: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1229: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1230: ${cross_prefix_s390x="s390x-linux-gnu-"}
1231: ${cross_prefix_sh4="sh4-linux-gnu-"}
1232: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1233: ${cross_prefix_sparc="$cross_prefix_sparc64"}
1234: ${cross_prefix_tricore="tricore-"}
1235: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1236
1237: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1238: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1239: ${cross_cc_armeb="$cross_cc_arm"}
1240: ${cross_cc_cflags_armeb="-mbig-endian"}
1241: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1242: ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1243: ${cross_cc_cflags_i386="-m32"}
1244: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1245: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1246: ${cross_cc_ppc64le="$cross_cc_ppc64"}
1247: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1248: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1249: ${cross_cc_sparc="$cross_cc_sparc64"}
1250: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1251: ${cross_cc_cflags_x86_64="-m64"}
1252
1253compute_target_variable() {
1254  eval "$2="
1255  if eval test -n "\"\${cross_prefix_$1}\""; then
1256    if eval has "\"\${cross_prefix_$1}\$3\""; then
1257      eval "$2=\"\${cross_prefix_$1}\$3\""
1258    fi
1259  fi
1260}
1261
1262have_target() {
1263  for i; do
1264    case " $target_list " in
1265      *" $i "*) return 0;;
1266      *) ;;
1267    esac
1268  done
1269  return 1
1270}
1271
1272# probe_target_compiler TARGET
1273#
1274# Look for a compiler for the given target, either native or cross.
1275# Set variables target_* if a compiler is found, and container_cross_*
1276# if a Docker-based cross-compiler image is known for the target.
1277# Set got_cross_cc to yes/no depending on whether a non-container-based
1278# compiler was found.
1279#
1280# If TARGET is a user-mode emulation target, also set build_static to
1281# "y" if static linking is possible.
1282#
1283probe_target_compiler() {
1284  # reset all output variables
1285  got_cross_cc=no
1286  container_image=
1287  container_hosts=
1288  container_cross_cc=
1289  container_cross_ar=
1290  container_cross_as=
1291  container_cross_ld=
1292  container_cross_nm=
1293  container_cross_objcopy=
1294  container_cross_ranlib=
1295  container_cross_strip=
1296
1297  target_arch=${1%%-*}
1298  case $target_arch in
1299    aarch64) container_hosts="x86_64 aarch64" ;;
1300    alpha) container_hosts=x86_64 ;;
1301    arm) container_hosts="x86_64 aarch64" ;;
1302    cris) container_hosts=x86_64 ;;
1303    hexagon) container_hosts=x86_64 ;;
1304    hppa) container_hosts=x86_64 ;;
1305    i386) container_hosts=x86_64 ;;
1306    loongarch64) container_hosts=x86_64 ;;
1307    m68k) container_hosts=x86_64 ;;
1308    microblaze) container_hosts=x86_64 ;;
1309    mips64el) container_hosts=x86_64 ;;
1310    mips64) container_hosts=x86_64 ;;
1311    mipsel) container_hosts=x86_64 ;;
1312    mips) container_hosts=x86_64 ;;
1313    nios2) container_hosts=x86_64 ;;
1314    ppc) container_hosts=x86_64 ;;
1315    ppc64|ppc64le) container_hosts=x86_64 ;;
1316    riscv64) container_hosts=x86_64 ;;
1317    s390x) container_hosts=x86_64 ;;
1318    sh4) container_hosts=x86_64 ;;
1319    sparc64) container_hosts=x86_64 ;;
1320    tricore) container_hosts=x86_64 ;;
1321    x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1322    xtensa*) container_hosts=x86_64 ;;
1323  esac
1324
1325  for host in $container_hosts; do
1326    test "$container" != no || continue
1327    test "$host" = "$cpu" || continue
1328    case $target_arch in
1329      aarch64)
1330        # We don't have any bigendian build tools so we only use this for AArch64
1331        container_image=debian-arm64-cross
1332        container_cross_prefix=aarch64-linux-gnu-
1333        container_cross_cc=${container_cross_prefix}gcc-10
1334        ;;
1335      alpha)
1336        container_image=debian-alpha-cross
1337        container_cross_prefix=alpha-linux-gnu-
1338        ;;
1339      arm)
1340        # We don't have any bigendian build tools so we only use this for ARM
1341        container_image=debian-armhf-cross
1342        container_cross_prefix=arm-linux-gnueabihf-
1343        ;;
1344      cris)
1345        container_image=fedora-cris-cross
1346        container_cross_prefix=cris-linux-gnu-
1347        ;;
1348      hexagon)
1349        container_image=debian-hexagon-cross
1350        container_cross_prefix=hexagon-unknown-linux-musl-
1351        container_cross_cc=${container_cross_prefix}clang
1352        ;;
1353      hppa)
1354        container_image=debian-hppa-cross
1355        container_cross_prefix=hppa-linux-gnu-
1356        ;;
1357      i386)
1358        container_image=fedora-i386-cross
1359        container_cross_prefix=
1360        ;;
1361      loongarch64)
1362        container_image=debian-loongarch-cross
1363        container_cross_prefix=loongarch64-unknown-linux-gnu-
1364        ;;
1365      m68k)
1366        container_image=debian-m68k-cross
1367        container_cross_prefix=m68k-linux-gnu-
1368        ;;
1369      microblaze)
1370        container_image=debian-microblaze-cross
1371        container_cross_prefix=microblaze-linux-musl-
1372        ;;
1373      mips64el)
1374        container_image=debian-mips64el-cross
1375        container_cross_prefix=mips64el-linux-gnuabi64-
1376        ;;
1377      mips64)
1378        container_image=debian-mips64-cross
1379        container_cross_prefix=mips64-linux-gnuabi64-
1380        ;;
1381      mipsel)
1382        container_image=debian-mipsel-cross
1383        container_cross_prefix=mipsel-linux-gnu-
1384        ;;
1385      mips)
1386        container_image=debian-mips-cross
1387        container_cross_prefix=mips-linux-gnu-
1388        ;;
1389      nios2)
1390        container_image=debian-nios2-cross
1391        container_cross_prefix=nios2-linux-gnu-
1392        ;;
1393      ppc)
1394        container_image=debian-powerpc-test-cross
1395        container_cross_prefix=powerpc-linux-gnu-
1396        container_cross_cc=${container_cross_prefix}gcc-10
1397        ;;
1398      ppc64|ppc64le)
1399        container_image=debian-powerpc-test-cross
1400        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1401        container_cross_cc=${container_cross_prefix}gcc-10
1402        ;;
1403      riscv64)
1404        container_image=debian-riscv64-test-cross
1405        container_cross_prefix=riscv64-linux-gnu-
1406        ;;
1407      s390x)
1408        container_image=debian-s390x-cross
1409        container_cross_prefix=s390x-linux-gnu-
1410        ;;
1411      sh4)
1412        container_image=debian-sh4-cross
1413        container_cross_prefix=sh4-linux-gnu-
1414        ;;
1415      sparc64)
1416        container_image=debian-sparc64-cross
1417        container_cross_prefix=sparc64-linux-gnu-
1418        ;;
1419      tricore)
1420        container_image=debian-tricore-cross
1421        container_cross_prefix=tricore-
1422        ;;
1423      x86_64)
1424        container_image=debian-amd64-cross
1425        container_cross_prefix=x86_64-linux-gnu-
1426        ;;
1427      xtensa*)
1428        container_image=debian-xtensa-cross
1429
1430        # default to the dc232b cpu
1431        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1432        ;;
1433    esac
1434    : ${container_cross_cc:=${container_cross_prefix}gcc}
1435    : ${container_cross_ar:=${container_cross_prefix}ar}
1436    : ${container_cross_as:=${container_cross_prefix}as}
1437    : ${container_cross_ld:=${container_cross_prefix}ld}
1438    : ${container_cross_nm:=${container_cross_prefix}nm}
1439    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1440    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1441    : ${container_cross_strip:=${container_cross_prefix}strip}
1442  done
1443
1444  try=cross
1445  case "$target_arch:$cpu" in
1446    aarch64_be:aarch64 | \
1447    armeb:arm | \
1448    i386:x86_64 | \
1449    mips*:mips64 | \
1450    ppc*:ppc64 | \
1451    sparc:sparc64 | \
1452    "$cpu:$cpu")
1453      try='native cross' ;;
1454  esac
1455  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1456  for thistry in $try; do
1457    case $thistry in
1458    native)
1459      target_cc=$cc
1460      target_ccas=$ccas
1461      target_ar=$ar
1462      target_as=$as
1463      target_ld=$ld
1464      target_nm=$nm
1465      target_objcopy=$objcopy
1466      target_ranlib=$ranlib
1467      target_strip=$strip
1468      ;;
1469    cross)
1470      target_cc=
1471      if eval test -n "\"\${cross_cc_$target_arch}\""; then
1472        if eval has "\"\${cross_cc_$target_arch}\""; then
1473          eval "target_cc=\"\${cross_cc_$target_arch}\""
1474        fi
1475      else
1476        compute_target_variable $target_arch target_cc gcc
1477      fi
1478      target_ccas=$target_cc
1479      compute_target_variable $target_arch target_ar ar
1480      compute_target_variable $target_arch target_as as
1481      compute_target_variable $target_arch target_ld ld
1482      compute_target_variable $target_arch target_nm nm
1483      compute_target_variable $target_arch target_objcopy objcopy
1484      compute_target_variable $target_arch target_ranlib ranlib
1485      compute_target_variable $target_arch target_strip strip
1486      ;;
1487    esac
1488
1489    if test -n "$target_cc"; then
1490      case $target_arch in
1491        i386|x86_64)
1492          if $target_cc --version | grep -qi "clang"; then
1493            continue
1494          fi
1495          ;;
1496      esac
1497    elif test -n "$target_as" && test -n "$target_ld"; then
1498      # Special handling for assembler only targets
1499      case $target in
1500        tricore-softmmu)
1501          build_static=
1502          got_cross_cc=yes
1503          break
1504          ;;
1505        *)
1506          continue
1507          ;;
1508      esac
1509    else
1510      continue
1511    fi
1512
1513    write_c_skeleton
1514    case $1 in
1515      *-softmmu)
1516        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1517          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1518          got_cross_cc=yes
1519          break
1520        fi
1521        ;;
1522      *)
1523        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1524          build_static=y
1525          got_cross_cc=yes
1526          break
1527        fi
1528        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1529          build_static=
1530          got_cross_cc=yes
1531          break
1532        fi
1533        ;;
1534    esac
1535  done
1536  if test $got_cross_cc != yes; then
1537    build_static=
1538    target_cc=
1539    target_ccas=
1540    target_ar=
1541    target_as=
1542    target_ld=
1543    target_nm=
1544    target_objcopy=
1545    target_ranlib=
1546    target_strip=
1547  fi
1548  test -n "$target_cc"
1549}
1550
1551write_target_makefile() {
1552  echo "EXTRA_CFLAGS=$target_cflags"
1553  if test -z "$target_cc" && test -z "$target_as"; then
1554    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1555    echo "$1: docker-image-$container_image" >> Makefile.prereqs
1556    if test -n "$container_cross_cc"; then
1557      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1558      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1559    fi
1560    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1561    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1562    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1563    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1564    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1565    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1566    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1567  else
1568    if test -n "$target_cc"; then
1569      echo "CC=$target_cc"
1570      echo "CCAS=$target_ccas"
1571    fi
1572    if test -n "$target_ar"; then
1573      echo "AR=$target_ar"
1574    fi
1575    if test -n "$target_as"; then
1576      echo "AS=$target_as"
1577    fi
1578    if test -n "$target_ld"; then
1579      echo "LD=$target_ld"
1580    fi
1581    if test -n "$target_nm"; then
1582      echo "NM=$target_nm"
1583    fi
1584    if test -n "$target_objcopy"; then
1585      echo "OBJCOPY=$target_objcopy"
1586    fi
1587    if test -n "$target_ranlib"; then
1588      echo "RANLIB=$target_ranlib"
1589    fi
1590    if test -n "$target_strip"; then
1591      echo "STRIP=$target_strip"
1592    fi
1593  fi
1594}
1595
1596#######################################
1597# cross-compiled firmware targets
1598
1599# Set up build tree symlinks that point back into the source tree
1600# (these can be both files and directories).
1601# Caution: avoid adding files or directories here using wildcards. This
1602# will result in problems later if a new file matching the wildcard is
1603# added to the source tree -- nothing will cause configure to be rerun
1604# so the build tree will be missing the link back to the new file, and
1605# tests might fail. Prefer to keep the relevant files in their own
1606# directory and symlink the directory instead.
1607LINKS="Makefile"
1608LINKS="$LINKS docs/config"
1609LINKS="$LINKS pc-bios/optionrom/Makefile"
1610LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1611LINKS="$LINKS pc-bios/vof/Makefile"
1612LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1613LINKS="$LINKS tests/avocado tests/data"
1614LINKS="$LINKS tests/qemu-iotests/check"
1615LINKS="$LINKS python"
1616LINKS="$LINKS contrib/plugins/Makefile "
1617for f in $LINKS ; do
1618    if [ -e "$source_path/$f" ]; then
1619        symlink "$source_path/$f" "$f"
1620    fi
1621done
1622
1623echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1624
1625# Mac OS X ships with a broken assembler
1626if have_target i386-softmmu x86_64-softmmu && \
1627        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1628        test "$targetos" != "haiku" && \
1629        probe_target_compiler i386-softmmu; then
1630    subdirs="$subdirs pc-bios/optionrom"
1631    config_mak=pc-bios/optionrom/config.mak
1632    echo "# Automatically generated by configure - do not modify" > $config_mak
1633    echo "TOPSRC_DIR=$source_path" >> $config_mak
1634    write_target_makefile >> $config_mak
1635fi
1636
1637if have_target ppc-softmmu ppc64-softmmu && \
1638        probe_target_compiler ppc-softmmu; then
1639    subdirs="$subdirs pc-bios/vof"
1640    config_mak=pc-bios/vof/config.mak
1641    echo "# Automatically generated by configure - do not modify" > $config_mak
1642    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1643    write_target_makefile >> $config_mak
1644fi
1645
1646# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1647# (which is the lowest architecture level that Clang supports)
1648if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1649    GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1650  write_c_skeleton
1651  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1652  has_z900=$?
1653  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1654    if [ $has_z900 != 0 ]; then
1655      echo "WARNING: Your compiler does not support the z900!"
1656      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1657    fi
1658    subdirs="$subdirs pc-bios/s390-ccw"
1659    config_mak=pc-bios/s390-ccw/config-host.mak
1660    echo "# Automatically generated by configure - do not modify" > $config_mak
1661    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1662    echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1663    write_target_makefile >> $config_mak
1664  fi
1665fi
1666
1667#######################################
1668# generate config-host.mak
1669
1670config_host_mak="config-host.mak"
1671
1672echo "# Automatically generated by configure - do not modify" > $config_host_mak
1673echo >> $config_host_mak
1674
1675echo all: >> $config_host_mak
1676
1677if test "$targetos" = "windows"; then
1678  echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
1679  echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
1680  echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
1681fi
1682
1683echo "SRC_PATH=$source_path" >> $config_host_mak
1684echo "TARGET_DIRS=$target_list" >> $config_host_mak
1685
1686if test -n "$gdb_bin"; then
1687    gdb_version=$($gdb_bin --version | head -n 1)
1688    if version_ge ${gdb_version##* } 9.1; then
1689        echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1690        gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1691    else
1692        gdb_bin=""
1693    fi
1694fi
1695
1696if test "$container" != no; then
1697    echo "ENGINE=$container" >> $config_host_mak
1698    echo "RUNC=$runc" >> $config_host_mak
1699fi
1700echo "SUBDIRS=$subdirs" >> $config_host_mak
1701echo "PYTHON=$python" >> $config_host_mak
1702echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1703echo "MESON=$meson" >> $config_host_mak
1704echo "NINJA=$ninja" >> $config_host_mak
1705echo "EXESUF=$EXESUF" >> $config_host_mak
1706
1707# use included Linux headers for KVM architectures
1708if test "$targetos" = "linux" && test -n "$linux_arch"; then
1709  symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1710fi
1711
1712for target in $target_list; do
1713    target_dir="$target"
1714    target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1715    case $target in
1716        *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1717        *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1718    esac
1719done
1720
1721if test "$default_targets" = "yes"; then
1722  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1723fi
1724
1725if test "$ccache_cpp2" = "yes"; then
1726  echo "export CCACHE_CPP2=y" >> $config_host_mak
1727fi
1728
1729# contrib/plugins configuration
1730echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1731echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1732echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1733echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1734echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1735if test "$targetos" = darwin; then
1736  echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1737fi
1738
1739# tests/tcg configuration
1740(config_host_mak=tests/tcg/config-host.mak
1741mkdir -p tests/tcg
1742echo "# Automatically generated by configure - do not modify" > $config_host_mak
1743echo "SRC_PATH=$source_path" >> $config_host_mak
1744
1745# versioned checked in the main config_host.mak above
1746if test -n "$gdb_bin"; then
1747    echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1748fi
1749if test "$plugins" = "yes" ; then
1750    echo "CONFIG_PLUGIN=y" >> $config_host_mak
1751fi
1752
1753tcg_tests_targets=
1754for target in $target_list; do
1755  arch=${target%%-*}
1756
1757  case $target in
1758    xtensa*-linux-user)
1759      # the toolchain is not complete with headers, only build softmmu tests
1760      continue
1761      ;;
1762    *-softmmu)
1763      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1764      qemu="qemu-system-$arch"
1765      ;;
1766    *-linux-user|*-bsd-user)
1767      qemu="qemu-$arch"
1768      ;;
1769  esac
1770
1771  if probe_target_compiler $target || test -n "$container_image"; then
1772      test -n "$container_image" && build_static=y
1773      mkdir -p "tests/tcg/$target"
1774      config_target_mak=tests/tcg/$target/config-target.mak
1775      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1776      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1777      echo "TARGET_NAME=$arch" >> "$config_target_mak"
1778      echo "TARGET=$target" >> "$config_target_mak"
1779      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1780      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1781      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1782
1783      # will GDB work with these binaries?
1784      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1785          echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
1786      fi
1787
1788      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1789      tcg_tests_targets="$tcg_tests_targets $target"
1790  fi
1791done
1792
1793if test "$tcg" = "enabled"; then
1794    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1795fi
1796)
1797
1798if test "$skip_meson" = no; then
1799  cross="config-meson.cross.new"
1800  meson_quote() {
1801    test $# = 0 && return
1802    echo "'$(echo $* | sed "s/ /','/g")'"
1803  }
1804
1805  echo "# Automatically generated by configure - do not modify" > $cross
1806  echo "[properties]" >> $cross
1807
1808  # unroll any custom device configs
1809  for a in $device_archs; do
1810      eval "c=\$devices_${a}"
1811      echo "${a}-softmmu = '$c'" >> $cross
1812  done
1813
1814  echo "[built-in options]" >> $cross
1815  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1816  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1817  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1818  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1819  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1820  echo "[binaries]" >> $cross
1821  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1822  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1823  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1824  echo "ar = [$(meson_quote $ar)]" >> $cross
1825  echo "nm = [$(meson_quote $nm)]" >> $cross
1826  echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1827  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1828  if has $sdl2_config; then
1829    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1830  fi
1831  echo "strip = [$(meson_quote $strip)]" >> $cross
1832  echo "widl = [$(meson_quote $widl)]" >> $cross
1833  echo "windres = [$(meson_quote $windres)]" >> $cross
1834  echo "windmc = [$(meson_quote $windmc)]" >> $cross
1835  if test "$cross_compile" = "yes"; then
1836    echo "[host_machine]" >> $cross
1837    echo "system = '$targetos'" >> $cross
1838    case "$cpu" in
1839        i386)
1840            echo "cpu_family = 'x86'" >> $cross
1841            ;;
1842        *)
1843            echo "cpu_family = '$cpu'" >> $cross
1844            ;;
1845    esac
1846    echo "cpu = '$cpu'" >> $cross
1847    if test "$bigendian" = "yes" ; then
1848        echo "endian = 'big'" >> $cross
1849    else
1850        echo "endian = 'little'" >> $cross
1851    fi
1852    cross_arg="--cross-file config-meson.cross"
1853
1854    native="config-meson.native.new"
1855    echo "# Automatically generated by configure - do not modify" > $native
1856    echo "[binaries]" >> $native
1857    echo "c = [$(meson_quote $host_cc)]" >> $native
1858    mv $native config-meson.native
1859    cross_arg="$cross_arg --native-file config-meson.native"
1860  else
1861    cross_arg="--native-file config-meson.cross"
1862  fi
1863  mv $cross config-meson.cross
1864
1865  rm -rf meson-private meson-info meson-logs
1866
1867  # Built-in options
1868  test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1869  test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
1870  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1871  test "$static" = yes && meson_option_add -Dprefer_static=true
1872  test "$pie" = no && meson_option_add -Db_pie=false
1873  test "$werror" = yes && meson_option_add -Dwerror=true
1874
1875  # QEMU options
1876  test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
1877  test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1878  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1879  test "$plugins" = yes && meson_option_add "-Dplugins=true"
1880  test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
1881  test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
1882  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1883  run_meson() {
1884    NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
1885  }
1886  eval run_meson $meson_options
1887  if test "$?" -ne 0 ; then
1888      error_exit "meson setup failed"
1889  fi
1890  echo "$meson" > build.ninja.stamp
1891else
1892  if test -f meson-private/cmd_line.txt; then
1893    # Adjust old command line options that were removed
1894    # sed -i is not portable
1895    perl -i -ne '
1896      /^sphinx_build/ && next;
1897      print;' meson-private/cmd_line.txt
1898  fi
1899fi
1900
1901# Save the configure command line for later reuse.
1902cat <<EOD >config.status
1903#!/bin/sh
1904# Generated by configure.
1905# Run this file to recreate the current configuration.
1906# Compiler output produced by configure, useful for debugging
1907# configure, is in config.log if it exists.
1908EOD
1909
1910preserve_env() {
1911    envname=$1
1912
1913    eval envval=\$$envname
1914
1915    if test -n "$envval"
1916    then
1917	echo "$envname='$envval'" >> config.status
1918	echo "export $envname" >> config.status
1919    else
1920	echo "unset $envname" >> config.status
1921    fi
1922}
1923
1924# Preserve various env variables that influence what
1925# features/build target configure will detect
1926preserve_env AR
1927preserve_env AS
1928preserve_env CC
1929preserve_env CFLAGS
1930preserve_env CXX
1931preserve_env CXXFLAGS
1932preserve_env LD
1933preserve_env LDFLAGS
1934preserve_env LD_LIBRARY_PATH
1935preserve_env NM
1936preserve_env OBJCFLAGS
1937preserve_env OBJCOPY
1938preserve_env PATH
1939preserve_env PKG_CONFIG
1940preserve_env PKG_CONFIG_LIBDIR
1941preserve_env PKG_CONFIG_PATH
1942preserve_env PYTHON
1943preserve_env QEMU_GA_MANUFACTURER
1944preserve_env QEMU_GA_DISTRO
1945preserve_env QEMU_GA_VERSION
1946preserve_env SDL2_CONFIG
1947preserve_env SMBD
1948preserve_env STRIP
1949preserve_env WIDL
1950preserve_env WINDRES
1951preserve_env WINDMC
1952
1953printf "exec" >>config.status
1954for i in "$0" "$@"; do
1955  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1956done
1957echo ' "$@"' >>config.status
1958chmod +x config.status
1959
1960rm -r "$TMPDIR1"
1961