xref: /openbmc/qemu/configure (revision bac4711b)
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
248
249git_submodules_action="update"
250git="git"
251debug_tcg="no"
252docs="auto"
253EXESUF=""
254prefix="/usr/local"
255qemu_suffix="qemu"
256softmmu="yes"
257linux_user=""
258bsd_user=""
259plugins="$default_feature"
260ninja=""
261python=
262download="enabled"
263bindir="bin"
264skip_meson=no
265use_containers="yes"
266gdb_bin=$(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}${cross_prefix}"; then
291  cc="$host_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
377mingw32="no"
378bsd="no"
379linux="no"
380solaris="no"
381case $targetos in
382windows)
383  mingw32="yes"
384  plugins="no"
385  pie="no"
386;;
387gnu/kfreebsd)
388  bsd="yes"
389;;
390freebsd)
391  bsd="yes"
392  # needed for kinfo_getvmmap(3) in libutil.h
393;;
394dragonfly)
395  bsd="yes"
396;;
397netbsd)
398  bsd="yes"
399;;
400openbsd)
401  bsd="yes"
402;;
403darwin)
404  bsd="yes"
405  darwin="yes"
406;;
407sunos)
408  solaris="yes"
409;;
410haiku)
411  pie="no"
412;;
413linux)
414  linux="yes"
415;;
416esac
417
418if test ! -z "$cpu" ; then
419  # command line argument
420  :
421elif check_define __i386__ ; then
422  cpu="i386"
423elif check_define __x86_64__ ; then
424  if check_define __ILP32__ ; then
425    cpu="x32"
426  else
427    cpu="x86_64"
428  fi
429elif check_define __sparc__ ; then
430  if check_define __arch64__ ; then
431    cpu="sparc64"
432  else
433    cpu="sparc"
434  fi
435elif check_define _ARCH_PPC ; then
436  if check_define _ARCH_PPC64 ; then
437    if check_define _LITTLE_ENDIAN ; then
438      cpu="ppc64le"
439    else
440      cpu="ppc64"
441    fi
442  else
443    cpu="ppc"
444  fi
445elif check_define __mips__ ; then
446  cpu="mips"
447elif check_define __s390__ ; then
448  if check_define __s390x__ ; then
449    cpu="s390x"
450  else
451    cpu="s390"
452  fi
453elif check_define __riscv ; then
454  cpu="riscv"
455elif check_define __arm__ ; then
456  cpu="arm"
457elif check_define __aarch64__ ; then
458  cpu="aarch64"
459elif check_define __loongarch64 ; then
460  cpu="loongarch64"
461else
462  # Using uname is really broken, but it is just a fallback for architectures
463  # that are going to use TCI anyway
464  cpu=$(uname -m)
465  echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
466fi
467
468# Normalise host CPU name and set multilib cflags.  The canonicalization
469# isn't really necessary, because the architectures that we check for
470# should not hit the 'uname -m' case, but better safe than sorry.
471# Note that this case should only have supported host CPUs, not guests.
472case "$cpu" in
473  armv*b|armv*l|arm)
474    cpu="arm" ;;
475
476  i386|i486|i586|i686)
477    cpu="i386"
478    CPU_CFLAGS="-m32" ;;
479  x32)
480    cpu="x86_64"
481    CPU_CFLAGS="-mx32" ;;
482  x86_64|amd64)
483    cpu="x86_64"
484    # ??? Only extremely old AMD cpus do not have cmpxchg16b.
485    # If we truly care, we should simply detect this case at
486    # runtime and generate the fallback to serial emulation.
487    CPU_CFLAGS="-m64 -mcx16" ;;
488
489  mips*)
490    cpu="mips" ;;
491
492  ppc)
493    CPU_CFLAGS="-m32" ;;
494  ppc64)
495    CPU_CFLAGS="-m64 -mbig-endian" ;;
496  ppc64le)
497    cpu="ppc64"
498    CPU_CFLAGS="-m64 -mlittle-endian" ;;
499
500  s390)
501    CPU_CFLAGS="-m31" ;;
502  s390x)
503    CPU_CFLAGS="-m64" ;;
504
505  sparc|sun4[cdmuv])
506    cpu="sparc"
507    CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
508  sparc64)
509    CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
510esac
511
512check_py_version() {
513    # We require python >= 3.7.
514    # NB: a True python conditional creates a non-zero return code (Failure)
515    "$1" -c 'import sys; sys.exit(sys.version_info < (3,7))'
516}
517
518first_python=
519if test -z "${PYTHON}"; then
520    # A bare 'python' is traditionally python 2.x, but some distros
521    # have it as python 3.x, so check in both places.
522    for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7; do
523        if has "$binary"; then
524            python=$(command -v "$binary")
525            if check_py_version "$python"; then
526                # This one is good.
527                first_python=
528                break
529            else
530                first_python=$python
531            fi
532        fi
533    done
534else
535    # Same as above, but only check the environment variable.
536    has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
537    python=$(command -v "$PYTHON")
538    if check_py_version "$python"; then
539        # This one is good.
540        first_python=
541    else
542        first_python=$first_python
543    fi
544fi
545
546# Check for ancillary tools used in testing
547genisoimage=
548for binary in genisoimage mkisofs
549do
550    if has $binary
551    then
552        genisoimage=$(command -v "$binary")
553        break
554    fi
555done
556
557if test "$mingw32" = "yes" ; then
558  EXESUF=".exe"
559  prefix="/qemu"
560  bindir=""
561  qemu_suffix=""
562fi
563
564meson_option_build_array() {
565  printf '['
566  (if test "$targetos" = windows; then
567    IFS=\;
568  else
569    IFS=:
570  fi
571  for e in $1; do
572    printf '"""'
573    # backslash escape any '\' and '"' characters
574    printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
575    printf '""",'
576  done)
577  printf ']\n'
578}
579
580. "$source_path/scripts/meson-buildoptions.sh"
581
582meson_options=
583meson_option_add() {
584  meson_options="$meson_options $(quote_sh "$1")"
585}
586meson_option_parse() {
587  meson_options="$meson_options $(_meson_option_parse "$@")"
588  if test $? -eq 1; then
589    echo "ERROR: unknown option $1"
590    echo "Try '$0 --help' for more information"
591    exit 1
592  fi
593}
594
595for opt do
596  optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
597  case "$opt" in
598  --help|-h) show_help=yes
599  ;;
600  --version|-V) exec cat "$source_path/VERSION"
601  ;;
602  --prefix=*) prefix="$optarg"
603  ;;
604  --cross-prefix=*)
605  ;;
606  --cc=*)
607  ;;
608  --host-cc=*) host_cc="$optarg"
609  ;;
610  --cxx=*)
611  ;;
612  --objcc=*)
613  ;;
614  --make=*)
615  ;;
616  --install=*)
617  ;;
618  --python=*) python="$optarg"
619  ;;
620  --skip-meson) skip_meson=yes
621  ;;
622  --ninja=*) ninja="$optarg"
623  ;;
624  --smbd=*) smbd="$optarg"
625  ;;
626  --extra-cflags=*)
627  ;;
628  --extra-cxxflags=*)
629  ;;
630  --extra-objcflags=*)
631  ;;
632  --extra-ldflags=*)
633  ;;
634  --cross-cc-*)
635  ;;
636  --cross-prefix-*)
637  ;;
638  --enable-docs) docs=enabled
639  ;;
640  --disable-docs) docs=disabled
641  ;;
642  --cpu=*)
643  ;;
644  --target-list=*) target_list="$optarg"
645                   if test "$target_list_exclude"; then
646                       error_exit "Can't mix --target-list with --target-list-exclude"
647                   fi
648  ;;
649  --target-list-exclude=*) target_list_exclude="$optarg"
650                   if test "$target_list"; then
651                       error_exit "Can't mix --target-list-exclude with --target-list"
652                   fi
653  ;;
654  --with-default-devices) meson_option_add -Ddefault_devices=true
655  ;;
656  --without-default-devices) meson_option_add -Ddefault_devices=false
657  ;;
658  --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
659  ;;
660  --with-devices-*) device_arch=${opt#--with-devices-};
661                    device_arch=${device_arch%%=*}
662                    cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
663                    if test -f "$cf"; then
664                        device_archs="$device_archs $device_arch"
665                        eval "devices_${device_arch}=\$optarg"
666                    else
667                        error_exit "File $cf does not exist"
668                    fi
669  ;;
670  --without-default-features) # processed above
671  ;;
672  --static) static="yes"
673  ;;
674  --bindir=*) bindir="$optarg"
675  ;;
676  --with-suffix=*) qemu_suffix="$optarg"
677  ;;
678  --host=*|--build=*|\
679  --disable-dependency-tracking|\
680  --sbindir=*|--sharedstatedir=*|\
681  --oldincludedir=*|--datarootdir=*|--infodir=*|\
682  --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
683    # These switches are silently ignored, for compatibility with
684    # autoconf-generated configure scripts. This allows QEMU's
685    # configure to be used by RPM and similar macros that set
686    # lots of directory switches by default.
687  ;;
688  --enable-debug-tcg) debug_tcg="yes"
689  ;;
690  --disable-debug-tcg) debug_tcg="no"
691  ;;
692  --enable-debug)
693      # Enable debugging options that aren't excessively noisy
694      debug_tcg="yes"
695      meson_option_parse --enable-debug-graph-lock ""
696      meson_option_parse --enable-debug-mutex ""
697      meson_option_add -Doptimization=0
698  ;;
699  --disable-tcg) tcg="disabled"
700                 plugins="no"
701  ;;
702  --enable-tcg) tcg="enabled"
703  ;;
704  --disable-system) softmmu="no"
705  ;;
706  --enable-system) softmmu="yes"
707  ;;
708  --disable-user)
709      linux_user="no" ;
710      bsd_user="no" ;
711  ;;
712  --enable-user) ;;
713  --disable-linux-user) linux_user="no"
714  ;;
715  --enable-linux-user) linux_user="yes"
716  ;;
717  --disable-bsd-user) bsd_user="no"
718  ;;
719  --enable-bsd-user) bsd_user="yes"
720  ;;
721  --enable-pie) pie="yes"
722  ;;
723  --disable-pie) pie="no"
724  ;;
725  --enable-werror) werror="yes"
726  ;;
727  --disable-werror) werror="no"
728  ;;
729  --enable-cfi)
730      cfi="true";
731      meson_option_add -Db_lto=true
732  ;;
733  --disable-cfi) cfi="false"
734  ;;
735  --disable-download) download="disabled"; git_submodules_action=validate;
736  ;;
737  --enable-download) download="enabled"; git_submodules_action=update;
738  ;;
739  --enable-plugins) if test "$mingw32" = "yes"; then
740                        error_exit "TCG plugins not currently supported on Windows platforms"
741                    else
742                        plugins="yes"
743                    fi
744  ;;
745  --disable-plugins) plugins="no"
746  ;;
747  --enable-containers) use_containers="yes"
748  ;;
749  --disable-containers) use_containers="no"
750  ;;
751  --gdb=*) gdb_bin="$optarg"
752  ;;
753  # everything else has the same name in configure and meson
754  --*) meson_option_parse "$opt" "$optarg"
755  ;;
756  esac
757done
758
759if ! test -e "$source_path/.git"
760then
761    git_submodules_action="validate"
762fi
763
764# test for any invalid configuration combinations
765if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
766    error_exit "Can't enable plugins on non-TCG builds"
767fi
768
769if ! test -f "$source_path/subprojects/keycodemapdb/README" \
770    && test "$download" = disabled
771then
772    echo
773    echo "ERROR: missing subprojects"
774    echo
775    if test -e "$source_path/.git"; then
776        echo "--disable-download specified but subprojects were not"
777        echo 'checked out.  Please invoke "meson subprojects download"'
778        echo "before configuring QEMU, or remove --disable-download"
779        echo "from the command line."
780    else
781        echo "This is not a GIT checkout but subproject content appears to"
782        echo "be missing. Do not use 'git archive' or GitHub download links"
783        echo "to acquire QEMU source archives. Non-GIT builds are only"
784        echo "supported with source archives linked from:"
785        echo
786        echo "  https://www.qemu.org/download/#source"
787        echo
788        echo "Developers working with GIT can use scripts/archive-source.sh"
789        echo "if they need to create valid source archives."
790    fi
791    echo
792    exit 1
793fi
794
795default_target_list=""
796mak_wilds=""
797
798if [ "$linux_user" != no ]; then
799    if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
800        linux_user=yes
801    elif [ "$linux_user" = yes ]; then
802        error_exit "linux-user not supported on this architecture"
803    fi
804fi
805if [ "$bsd_user" != no ]; then
806    if [ "$bsd_user" = "" ]; then
807        test $targetos = freebsd && bsd_user=yes
808    fi
809    if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
810        error_exit "bsd-user not supported on this host OS"
811    fi
812fi
813if [ "$softmmu" = "yes" ]; then
814    mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
815fi
816if [ "$linux_user" = "yes" ]; then
817    mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
818fi
819if [ "$bsd_user" = "yes" ]; then
820    mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
821fi
822
823for config in $mak_wilds; do
824    target="$(basename "$config" .mak)"
825    if echo "$target_list_exclude" | grep -vq "$target"; then
826        default_target_list="${default_target_list} $target"
827    fi
828done
829
830if test x"$show_help" = x"yes" ; then
831cat << EOF
832
833Usage: configure [options]
834Options: [defaults in brackets after descriptions]
835
836Standard options:
837  --help                   print this message
838  --prefix=PREFIX          install in PREFIX [$prefix]
839  --target-list=LIST       set target list (default: build all)
840$(echo Available targets: $default_target_list | \
841  fold -s -w 53 | sed -e 's/^/                           /')
842  --target-list-exclude=LIST exclude a set of targets from the default target-list
843
844Advanced options (experts only):
845  --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
846  --cc=CC                  use C compiler CC [$cc]
847  --host-cc=CC             use C compiler CC [$host_cc] for code run at
848                           build time
849  --cxx=CXX                use C++ compiler CXX [$cxx]
850  --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
851  --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
852  --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
853  --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
854  --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
855  --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
856  --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
857  --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
858  --python=PYTHON          use specified python [$python]
859  --ninja=NINJA            use specified ninja [$ninja]
860  --smbd=SMBD              use specified smbd [$smbd]
861  --static                 enable static build [$static]
862  --bindir=PATH            install binaries in PATH
863  --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
864  --without-default-features default all --enable-* options to "disabled"
865  --without-default-devices  do not include any device that is not needed to
866                           start the emulator (only use if you are including
867                           desired devices in configs/devices/)
868  --with-devices-ARCH=NAME override default configs/devices
869  --enable-debug           enable common debug build options
870  --disable-werror         disable compilation abort on warning
871  --cpu=CPU                Build for host CPU [$cpu]
872  --enable-plugins
873                           enable plugins via shared library loading
874  --disable-containers     don't use containers for cross-building
875  --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
876EOF
877  meson_options_help
878cat << EOF
879  system          all system emulation targets
880  user            supported user emulation targets
881  linux-user      all linux usermode emulation targets
882  bsd-user        all BSD usermode emulation targets
883  pie             Position Independent Executables
884  debug-tcg       TCG debugging (default is disabled)
885
886NOTE: The object files are built at the place where configure is launched
887EOF
888exit 0
889fi
890
891# Remove old dependency files to make sure that they get properly regenerated
892rm -f ./*/config-devices.mak.d
893
894if test -z "$python"
895then
896    # If first_python is set, there was a binary somewhere even though
897    # it was not suitable.  Use it for the error message.
898    if test -n "$first_python"; then
899        error_exit "Cannot use '$first_python', Python >= 3.7 is required." \
900            "Use --python=/path/to/python to specify a supported Python."
901    else
902        error_exit "Python not found. Use --python=/path/to/python"
903    fi
904fi
905
906if ! check_py_version "$python"; then
907  error_exit "Cannot use '$python', Python >= 3.7 is required." \
908             "Use --python=/path/to/python to specify a supported Python." \
909             "Maybe try:" \
910             "  openSUSE Leap 15.3+: zypper install python39" \
911             "  CentOS 8: dnf install python38"
912fi
913
914# Resolve PATH
915python="$(command -v "$python")"
916
917# Create a Python virtual environment using our configured python.
918# The stdout of this script will be the location of a symlink that
919# points to the configured Python.
920# Entry point scripts for pip, meson, and sphinx are generated if those
921# packages are present.
922
923# Defaults assumed for now:
924# - venv is cleared if it exists already;
925# - venv is allowed to use system packages;
926# - all setup can be performed offline;
927# - missing packages may be fetched from PyPI,
928#   unless --disable-download is passed.
929# - pip is not installed into the venv when possible,
930#   but ensurepip is called as a fallback when necessary.
931
932echo "python determined to be '$python'"
933echo "python version: $($python --version)"
934
935python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
936if test "$?" -ne 0 ; then
937    error_exit "python venv creation failed"
938fi
939
940# Suppress writing compiled files
941python="$python -B"
942mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
943
944mkvenv_flags=""
945if test "$download" = "enabled" ; then
946    mkvenv_flags="--online"
947fi
948
949if ! $mkvenv ensure \
950     $mkvenv_flags \
951     --dir "${source_path}/python/wheels" \
952     --diagnose "meson" \
953     "meson>=0.63.0" ;
954then
955    exit 1
956fi
957
958# At this point, we expect Meson to be installed and available.
959# We expect mkvenv or pip to have created pyvenv/bin/meson for us.
960# We ignore PATH completely here: we want to use the venv's Meson
961# *exclusively*.
962
963meson="$(cd pyvenv/bin; pwd)/meson"
964
965# Conditionally ensure Sphinx is installed.
966
967mkvenv_flags=""
968if test "$download" = "enabled" -a "$docs" = "enabled" ; then
969    mkvenv_flags="--online"
970fi
971
972if test "$docs" != "disabled" ; then
973    if ! $mkvenv ensure \
974         $mkvenv_flags \
975         --diagnose "sphinx-build" \
976         "sphinx>=1.6.0" "sphinx-rtd-theme>=0.5.0";
977    then
978        if test "$docs" = "enabled" ; then
979            exit 1
980        fi
981        echo "Sphinx not found/usable, disabling docs."
982        docs=disabled
983    else
984        docs=enabled
985    fi
986fi
987
988# Probe for ninja
989
990if test -z "$ninja"; then
991    for c in ninja ninja-build samu; do
992        if has $c; then
993            ninja=$(command -v "$c")
994            break
995        fi
996    done
997    if test -z "$ninja"; then
998      error_exit "Cannot find Ninja"
999    fi
1000fi
1001
1002# Consult white-list to determine whether to enable werror
1003# by default.  Only enable by default for git builds
1004if test -z "$werror" ; then
1005    if test -e "$source_path/.git" && \
1006        { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1007        werror="yes"
1008    else
1009        werror="no"
1010    fi
1011fi
1012
1013if test "$targetos" = "bogus"; then
1014    # Now that we know that we're not printing the help and that
1015    # the compiler works (so the results of the check_defines we used
1016    # to identify the OS are reliable), if we didn't recognize the
1017    # host OS we should stop now.
1018    error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1019fi
1020
1021if test "$static" = "yes" ; then
1022  if test "$plugins" = "yes"; then
1023    error_exit "static and plugins are mutually incompatible"
1024  else
1025    plugins="no"
1026  fi
1027fi
1028test "$plugins" = "" && plugins=yes
1029
1030cat > $TMPC << EOF
1031
1032#ifdef __linux__
1033#  define THREAD __thread
1034#else
1035#  define THREAD
1036#endif
1037static THREAD int tls_var;
1038int main(void) { return tls_var; }
1039EOF
1040
1041if test "$static" = "yes"; then
1042  if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1043    pie="yes"
1044  elif test "$pie" = "yes"; then
1045    error_exit "-static-pie not available due to missing toolchain support"
1046  else
1047    pie="no"
1048  fi
1049elif test "$pie" != "no"; then
1050  if compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1051    pie="yes"
1052  elif test "$pie" = "yes"; then
1053    error_exit "PIE not available due to missing toolchain support"
1054  else
1055    echo "Disabling PIE due to missing toolchain support"
1056    pie="no"
1057  fi
1058fi
1059
1060##########################################
1061
1062if test -z "${target_list+xxx}" ; then
1063    default_targets=yes
1064    for target in $default_target_list; do
1065        target_list="$target_list $target"
1066    done
1067    target_list="${target_list# }"
1068else
1069    default_targets=no
1070    target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1071    for target in $target_list; do
1072        # Check that we recognised the target name; this allows a more
1073        # friendly error message than if we let it fall through.
1074        case " $default_target_list " in
1075            *" $target "*)
1076                ;;
1077            *)
1078                error_exit "Unknown target name '$target'"
1079                ;;
1080        esac
1081    done
1082fi
1083
1084# see if system emulation was really requested
1085case " $target_list " in
1086  *"-softmmu "*) softmmu=yes
1087  ;;
1088  *) softmmu=no
1089  ;;
1090esac
1091
1092if test "$tcg" = "auto"; then
1093  if test -z "$target_list"; then
1094    tcg="disabled"
1095  else
1096    tcg="enabled"
1097  fi
1098fi
1099
1100##########################################
1101# big/little endian test
1102cat > $TMPC << EOF
1103#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1104# error LITTLE
1105#endif
1106int main(void) { return 0; }
1107EOF
1108
1109if ! compile_prog ; then
1110  bigendian="no"
1111else
1112  cat > $TMPC << EOF
1113#if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1114# error BIG
1115#endif
1116int main(void) { return 0; }
1117EOF
1118
1119  if ! compile_prog ; then
1120    bigendian="yes"
1121  else
1122    echo big/little test failed
1123    exit 1
1124  fi
1125fi
1126
1127########################################
1128# check if ccache is interfering with
1129# semantic analysis of macros
1130
1131unset CCACHE_CPP2
1132ccache_cpp2=no
1133cat > $TMPC << EOF
1134static const int Z = 1;
1135#define fn() ({ Z; })
1136#define TAUT(X) ((X) == Z)
1137#define PAREN(X, Y) (X == Y)
1138#define ID(X) (X)
1139int main(void)
1140{
1141    int x = 0, y = 0;
1142    x = ID(x);
1143    x = fn();
1144    fn();
1145    if (PAREN(x, y)) return 0;
1146    if (TAUT(Z)) return 0;
1147    return 0;
1148}
1149EOF
1150
1151if ! compile_object "-Werror"; then
1152    ccache_cpp2=yes
1153fi
1154
1155##########################################
1156# functions to probe cross compilers
1157
1158container="no"
1159runc=""
1160if test $use_containers = "yes" && (has "docker" || has "podman"); then
1161    case $($python "$source_path"/tests/docker/docker.py probe) in
1162        *docker) container=docker ;;
1163        podman) container=podman ;;
1164        no) container=no ;;
1165    esac
1166    if test "$container" != "no"; then
1167        docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1168        runc=$($python "$source_path"/tests/docker/docker.py probe)
1169    fi
1170fi
1171
1172# cross compilers defaults, can be overridden with --cross-cc-ARCH
1173: ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1174: ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1175: ${cross_prefix_alpha="alpha-linux-gnu-"}
1176: ${cross_prefix_arm="arm-linux-gnueabihf-"}
1177: ${cross_prefix_armeb="$cross_prefix_arm"}
1178: ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1179: ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1180: ${cross_prefix_hppa="hppa-linux-gnu-"}
1181: ${cross_prefix_i386="i686-linux-gnu-"}
1182: ${cross_prefix_m68k="m68k-linux-gnu-"}
1183: ${cross_prefix_microblaze="microblaze-linux-musl-"}
1184: ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1185: ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1186: ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1187: ${cross_prefix_mips="mips-linux-gnu-"}
1188: ${cross_prefix_nios2="nios2-linux-gnu-"}
1189: ${cross_prefix_ppc="powerpc-linux-gnu-"}
1190: ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1191: ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1192: ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1193: ${cross_prefix_s390x="s390x-linux-gnu-"}
1194: ${cross_prefix_sh4="sh4-linux-gnu-"}
1195: ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1196: ${cross_prefix_sparc="$cross_prefix_sparc64"}
1197: ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1198
1199: ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1200: ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1201: ${cross_cc_armeb="$cross_cc_arm"}
1202: ${cross_cc_cflags_armeb="-mbig-endian"}
1203: ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1204: ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1205: ${cross_cc_cflags_i386="-m32"}
1206: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1207: ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1208: ${cross_cc_ppc64le="$cross_cc_ppc64"}
1209: ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1210: ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1211: ${cross_cc_sparc="$cross_cc_sparc64"}
1212: ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1213: ${cross_cc_cflags_x86_64="-m64"}
1214
1215compute_target_variable() {
1216  eval "$2="
1217  if eval test -n "\"\${cross_prefix_$1}\""; then
1218    if eval has "\"\${cross_prefix_$1}\$3\""; then
1219      eval "$2=\"\${cross_prefix_$1}\$3\""
1220    fi
1221  fi
1222}
1223
1224have_target() {
1225  for i; do
1226    case " $target_list " in
1227      *" $i "*) return 0;;
1228      *) ;;
1229    esac
1230  done
1231  return 1
1232}
1233
1234# probe_target_compiler TARGET
1235#
1236# Look for a compiler for the given target, either native or cross.
1237# Set variables target_* if a compiler is found, and container_cross_*
1238# if a Docker-based cross-compiler image is known for the target.
1239# Set got_cross_cc to yes/no depending on whether a non-container-based
1240# compiler was found.
1241#
1242# If TARGET is a user-mode emulation target, also set build_static to
1243# "y" if static linking is possible.
1244#
1245probe_target_compiler() {
1246  # reset all output variables
1247  got_cross_cc=no
1248  container_image=
1249  container_hosts=
1250  container_cross_cc=
1251  container_cross_ar=
1252  container_cross_as=
1253  container_cross_ld=
1254  container_cross_nm=
1255  container_cross_objcopy=
1256  container_cross_ranlib=
1257  container_cross_strip=
1258
1259  target_arch=${1%%-*}
1260  case $target_arch in
1261    aarch64) container_hosts="x86_64 aarch64" ;;
1262    alpha) container_hosts=x86_64 ;;
1263    arm) container_hosts="x86_64 aarch64" ;;
1264    cris) container_hosts=x86_64 ;;
1265    hexagon) container_hosts=x86_64 ;;
1266    hppa) container_hosts=x86_64 ;;
1267    i386) container_hosts=x86_64 ;;
1268    loongarch64) container_hosts=x86_64 ;;
1269    m68k) container_hosts=x86_64 ;;
1270    microblaze) container_hosts=x86_64 ;;
1271    mips64el) container_hosts=x86_64 ;;
1272    mips64) container_hosts=x86_64 ;;
1273    mipsel) container_hosts=x86_64 ;;
1274    mips) container_hosts=x86_64 ;;
1275    nios2) container_hosts=x86_64 ;;
1276    ppc) container_hosts=x86_64 ;;
1277    ppc64|ppc64le) container_hosts=x86_64 ;;
1278    riscv64) container_hosts=x86_64 ;;
1279    s390x) container_hosts=x86_64 ;;
1280    sh4) container_hosts=x86_64 ;;
1281    sparc64) container_hosts=x86_64 ;;
1282    tricore) container_hosts=x86_64 ;;
1283    x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1284    xtensa*) container_hosts=x86_64 ;;
1285  esac
1286
1287  for host in $container_hosts; do
1288    test "$container" != no || continue
1289    test "$host" = "$cpu" || continue
1290    case $target_arch in
1291      aarch64)
1292        # We don't have any bigendian build tools so we only use this for AArch64
1293        container_image=debian-arm64-cross
1294        container_cross_prefix=aarch64-linux-gnu-
1295        container_cross_cc=${container_cross_prefix}gcc-10
1296        ;;
1297      alpha)
1298        container_image=debian-alpha-cross
1299        container_cross_prefix=alpha-linux-gnu-
1300        ;;
1301      arm)
1302        # We don't have any bigendian build tools so we only use this for ARM
1303        container_image=debian-armhf-cross
1304        container_cross_prefix=arm-linux-gnueabihf-
1305        ;;
1306      cris)
1307        container_image=fedora-cris-cross
1308        container_cross_prefix=cris-linux-gnu-
1309        ;;
1310      hexagon)
1311        container_image=debian-hexagon-cross
1312        container_cross_prefix=hexagon-unknown-linux-musl-
1313        container_cross_cc=${container_cross_prefix}clang
1314        ;;
1315      hppa)
1316        container_image=debian-hppa-cross
1317        container_cross_prefix=hppa-linux-gnu-
1318        ;;
1319      i386)
1320        container_image=fedora-i386-cross
1321        container_cross_prefix=
1322        ;;
1323      loongarch64)
1324        container_image=debian-loongarch-cross
1325        container_cross_prefix=loongarch64-unknown-linux-gnu-
1326        ;;
1327      m68k)
1328        container_image=debian-m68k-cross
1329        container_cross_prefix=m68k-linux-gnu-
1330        ;;
1331      microblaze)
1332        container_image=debian-microblaze-cross
1333        container_cross_prefix=microblaze-linux-musl-
1334        ;;
1335      mips64el)
1336        container_image=debian-mips64el-cross
1337        container_cross_prefix=mips64el-linux-gnuabi64-
1338        ;;
1339      mips64)
1340        container_image=debian-mips64-cross
1341        container_cross_prefix=mips64-linux-gnuabi64-
1342        ;;
1343      mipsel)
1344        container_image=debian-mipsel-cross
1345        container_cross_prefix=mipsel-linux-gnu-
1346        ;;
1347      mips)
1348        container_image=debian-mips-cross
1349        container_cross_prefix=mips-linux-gnu-
1350        ;;
1351      nios2)
1352        container_image=debian-nios2-cross
1353        container_cross_prefix=nios2-linux-gnu-
1354        ;;
1355      ppc)
1356        container_image=debian-powerpc-test-cross
1357        container_cross_prefix=powerpc-linux-gnu-
1358        container_cross_cc=${container_cross_prefix}gcc-10
1359        ;;
1360      ppc64|ppc64le)
1361        container_image=debian-powerpc-test-cross
1362        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1363        container_cross_cc=${container_cross_prefix}gcc-10
1364        ;;
1365      riscv64)
1366        container_image=debian-riscv64-test-cross
1367        container_cross_prefix=riscv64-linux-gnu-
1368        ;;
1369      s390x)
1370        container_image=debian-s390x-cross
1371        container_cross_prefix=s390x-linux-gnu-
1372        ;;
1373      sh4)
1374        container_image=debian-sh4-cross
1375        container_cross_prefix=sh4-linux-gnu-
1376        ;;
1377      sparc64)
1378        container_image=debian-sparc64-cross
1379        container_cross_prefix=sparc64-linux-gnu-
1380        ;;
1381      tricore)
1382        container_image=debian-tricore-cross
1383        container_cross_prefix=tricore-
1384        container_cross_as=tricore-as
1385        container_cross_ld=tricore-ld
1386        container_cross_cc=tricore-gcc
1387        break
1388        ;;
1389      x86_64)
1390        container_image=debian-amd64-cross
1391        container_cross_prefix=x86_64-linux-gnu-
1392        ;;
1393      xtensa*)
1394        container_hosts=x86_64
1395        container_image=debian-xtensa-cross
1396
1397        # default to the dc232b cpu
1398        container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1399        ;;
1400    esac
1401    : ${container_cross_cc:=${container_cross_prefix}gcc}
1402    : ${container_cross_ar:=${container_cross_prefix}ar}
1403    : ${container_cross_as:=${container_cross_prefix}as}
1404    : ${container_cross_ld:=${container_cross_prefix}ld}
1405    : ${container_cross_nm:=${container_cross_prefix}nm}
1406    : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1407    : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1408    : ${container_cross_strip:=${container_cross_prefix}strip}
1409  done
1410
1411  try=cross
1412  case "$target_arch:$cpu" in
1413    aarch64_be:aarch64 | \
1414    armeb:arm | \
1415    i386:x86_64 | \
1416    mips*:mips64 | \
1417    ppc*:ppc64 | \
1418    sparc:sparc64 | \
1419    "$cpu:$cpu")
1420      try='native cross' ;;
1421  esac
1422  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1423  for thistry in $try; do
1424    case $thistry in
1425    native)
1426      target_cc=$cc
1427      target_ccas=$ccas
1428      target_ar=$ar
1429      target_as=$as
1430      target_ld=$ld
1431      target_nm=$nm
1432      target_objcopy=$objcopy
1433      target_ranlib=$ranlib
1434      target_strip=$strip
1435      ;;
1436    cross)
1437      target_cc=
1438      if eval test -n "\"\${cross_cc_$target_arch}\""; then
1439        if eval has "\"\${cross_cc_$target_arch}\""; then
1440          eval "target_cc=\"\${cross_cc_$target_arch}\""
1441        fi
1442      else
1443        compute_target_variable $target_arch target_cc gcc
1444      fi
1445      target_ccas=$target_cc
1446      compute_target_variable $target_arch target_ar ar
1447      compute_target_variable $target_arch target_as as
1448      compute_target_variable $target_arch target_ld ld
1449      compute_target_variable $target_arch target_nm nm
1450      compute_target_variable $target_arch target_objcopy objcopy
1451      compute_target_variable $target_arch target_ranlib ranlib
1452      compute_target_variable $target_arch target_strip strip
1453      ;;
1454    esac
1455
1456    if test -n "$target_cc"; then
1457      case $target_arch in
1458        i386|x86_64)
1459          if $target_cc --version | grep -qi "clang"; then
1460            continue
1461          fi
1462          ;;
1463      esac
1464    elif test -n "$target_as" && test -n "$target_ld"; then
1465      # Special handling for assembler only targets
1466      case $target in
1467        tricore-softmmu)
1468          build_static=
1469          got_cross_cc=yes
1470          break
1471          ;;
1472        *)
1473          continue
1474          ;;
1475      esac
1476    else
1477      continue
1478    fi
1479
1480    write_c_skeleton
1481    case $1 in
1482      *-softmmu)
1483        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1484          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1485          got_cross_cc=yes
1486          break
1487        fi
1488        ;;
1489      *)
1490        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1491          build_static=y
1492          got_cross_cc=yes
1493          break
1494        fi
1495        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1496          build_static=
1497          got_cross_cc=yes
1498          break
1499        fi
1500        ;;
1501    esac
1502  done
1503  if test $got_cross_cc != yes; then
1504    build_static=
1505    target_cc=
1506    target_ccas=
1507    target_ar=
1508    target_as=
1509    target_ld=
1510    target_nm=
1511    target_objcopy=
1512    target_ranlib=
1513    target_strip=
1514  fi
1515  test -n "$target_cc"
1516}
1517
1518write_target_makefile() {
1519  echo "EXTRA_CFLAGS=$target_cflags"
1520  if test -z "$target_cc" && test -z "$target_as"; then
1521    test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1522    echo "$1: docker-image-$container_image" >> Makefile.prereqs
1523    if test -n "$container_cross_cc"; then
1524      echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1525      echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1526    fi
1527    echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1528    echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1529    echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1530    echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1531    echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1532    echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1533    echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1534  else
1535    if test -n "$target_cc"; then
1536      echo "CC=$target_cc"
1537      echo "CCAS=$target_ccas"
1538    fi
1539    if test -n "$target_ar"; then
1540      echo "AR=$target_ar"
1541    fi
1542    if test -n "$target_as"; then
1543      echo "AS=$target_as"
1544    fi
1545    if test -n "$target_ld"; then
1546      echo "LD=$target_ld"
1547    fi
1548    if test -n "$target_nm"; then
1549      echo "NM=$target_nm"
1550    fi
1551    if test -n "$target_objcopy"; then
1552      echo "OBJCOPY=$target_objcopy"
1553    fi
1554    if test -n "$target_ranlib"; then
1555      echo "RANLIB=$target_ranlib"
1556    fi
1557    if test -n "$target_strip"; then
1558      echo "STRIP=$target_strip"
1559    fi
1560  fi
1561}
1562
1563#######################################
1564# cross-compiled firmware targets
1565
1566# Set up build tree symlinks that point back into the source tree
1567# (these can be both files and directories).
1568# Caution: avoid adding files or directories here using wildcards. This
1569# will result in problems later if a new file matching the wildcard is
1570# added to the source tree -- nothing will cause configure to be rerun
1571# so the build tree will be missing the link back to the new file, and
1572# tests might fail. Prefer to keep the relevant files in their own
1573# directory and symlink the directory instead.
1574LINKS="Makefile"
1575LINKS="$LINKS docs/config"
1576LINKS="$LINKS pc-bios/optionrom/Makefile"
1577LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1578LINKS="$LINKS pc-bios/vof/Makefile"
1579LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1580LINKS="$LINKS tests/avocado tests/data"
1581LINKS="$LINKS tests/qemu-iotests/check"
1582LINKS="$LINKS python"
1583LINKS="$LINKS contrib/plugins/Makefile "
1584for f in $LINKS ; do
1585    if [ -e "$source_path/$f" ]; then
1586        symlink "$source_path/$f" "$f"
1587    fi
1588done
1589
1590echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1591
1592# Mac OS X ships with a broken assembler
1593roms=
1594if have_target i386-softmmu x86_64-softmmu && \
1595        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1596        test "$targetos" != "haiku" && \
1597        probe_target_compiler i386-softmmu; then
1598    roms="pc-bios/optionrom"
1599    config_mak=pc-bios/optionrom/config.mak
1600    echo "# Automatically generated by configure - do not modify" > $config_mak
1601    echo "TOPSRC_DIR=$source_path" >> $config_mak
1602    write_target_makefile >> $config_mak
1603fi
1604
1605if have_target ppc-softmmu ppc64-softmmu && \
1606        probe_target_compiler ppc-softmmu; then
1607    roms="$roms pc-bios/vof"
1608    config_mak=pc-bios/vof/config.mak
1609    echo "# Automatically generated by configure - do not modify" > $config_mak
1610    echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1611    write_target_makefile >> $config_mak
1612fi
1613
1614# Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1615# (which is the lowest architecture level that Clang supports)
1616if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1617    GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1618  write_c_skeleton
1619  do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1620  has_z900=$?
1621  if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1622    if [ $has_z900 != 0 ]; then
1623      echo "WARNING: Your compiler does not support the z900!"
1624      echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1625    fi
1626    roms="$roms pc-bios/s390-ccw"
1627    config_mak=pc-bios/s390-ccw/config-host.mak
1628    echo "# Automatically generated by configure - do not modify" > $config_mak
1629    echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1630    echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1631    write_target_makefile >> $config_mak
1632  fi
1633fi
1634
1635#######################################
1636# generate config-host.mak
1637
1638config_host_mak="config-host.mak"
1639
1640echo "# Automatically generated by configure - do not modify" > $config_host_mak
1641echo >> $config_host_mak
1642
1643echo all: >> $config_host_mak
1644
1645if test "$debug_tcg" = "yes" ; then
1646  echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
1647fi
1648if test "$mingw32" = "yes" ; then
1649  echo "CONFIG_WIN32=y" >> $config_host_mak
1650  echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
1651  echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
1652  echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
1653else
1654  echo "CONFIG_POSIX=y" >> $config_host_mak
1655fi
1656
1657if test "$linux" = "yes" ; then
1658  echo "CONFIG_LINUX=y" >> $config_host_mak
1659fi
1660
1661if test "$darwin" = "yes" ; then
1662  echo "CONFIG_DARWIN=y" >> $config_host_mak
1663fi
1664
1665if test "$solaris" = "yes" ; then
1666  echo "CONFIG_SOLARIS=y" >> $config_host_mak
1667fi
1668echo "SRC_PATH=$source_path" >> $config_host_mak
1669echo "TARGET_DIRS=$target_list" >> $config_host_mak
1670
1671# XXX: suppress that
1672if [ "$bsd" = "yes" ] ; then
1673  echo "CONFIG_BSD=y" >> $config_host_mak
1674fi
1675
1676if test "$plugins" = "yes" ; then
1677    echo "CONFIG_PLUGIN=y" >> $config_host_mak
1678fi
1679
1680if test -n "$gdb_bin"; then
1681    gdb_version=$($gdb_bin --version | head -n 1)
1682    if version_ge ${gdb_version##* } 9.1; then
1683        echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1684        gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1685    else
1686        gdb_bin=""
1687    fi
1688fi
1689
1690if test "$container" != no; then
1691    echo "ENGINE=$container" >> $config_host_mak
1692    echo "RUNC=$runc" >> $config_host_mak
1693fi
1694echo "ROMS=$roms" >> $config_host_mak
1695echo "PYTHON=$python" >> $config_host_mak
1696echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1697echo "MESON=$meson" >> $config_host_mak
1698echo "NINJA=$ninja" >> $config_host_mak
1699echo "PKG_CONFIG=${pkg_config}" >> $config_host_mak
1700echo "CC=$cc" >> $config_host_mak
1701echo "EXESUF=$EXESUF" >> $config_host_mak
1702
1703# use included Linux headers
1704if test "$linux" = "yes" ; then
1705  mkdir -p linux-headers
1706  case "$cpu" in
1707  i386|x86_64)
1708    linux_arch=x86
1709    ;;
1710  ppc|ppc64)
1711    linux_arch=powerpc
1712    ;;
1713  s390x)
1714    linux_arch=s390
1715    ;;
1716  aarch64)
1717    linux_arch=arm64
1718    ;;
1719  loongarch*)
1720    linux_arch=loongarch
1721    ;;
1722  mips64)
1723    linux_arch=mips
1724    ;;
1725  *)
1726    # For most CPUs the kernel architecture name and QEMU CPU name match.
1727    linux_arch="$cpu"
1728    ;;
1729  esac
1730    # For non-KVM architectures we will not have asm headers
1731    if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
1732      symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1733    fi
1734fi
1735
1736for target in $target_list; do
1737    target_dir="$target"
1738    target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1739    mkdir -p "$target_dir"
1740    case $target in
1741        *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1742        *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1743    esac
1744done
1745
1746if test "$default_targets" = "yes"; then
1747  echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1748fi
1749
1750if test "$ccache_cpp2" = "yes"; then
1751  echo "export CCACHE_CPP2=y" >> $config_host_mak
1752fi
1753
1754# tests/tcg configuration
1755(config_host_mak=tests/tcg/config-host.mak
1756mkdir -p tests/tcg
1757echo "# Automatically generated by configure - do not modify" > $config_host_mak
1758echo "SRC_PATH=$source_path" >> $config_host_mak
1759echo "HOST_CC=$host_cc" >> $config_host_mak
1760
1761# versioned checked in the main config_host.mak above
1762if test -n "$gdb_bin"; then
1763    echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1764fi
1765if test "$plugins" = "yes" ; then
1766    echo "CONFIG_PLUGIN=y" >> $config_host_mak
1767fi
1768
1769tcg_tests_targets=
1770for target in $target_list; do
1771  arch=${target%%-*}
1772
1773  case $target in
1774    xtensa*-linux-user)
1775      # the toolchain is not complete with headers, only build softmmu tests
1776      continue
1777      ;;
1778    *-softmmu)
1779      test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1780      qemu="qemu-system-$arch"
1781      ;;
1782    *-linux-user|*-bsd-user)
1783      qemu="qemu-$arch"
1784      ;;
1785  esac
1786
1787  if probe_target_compiler $target || test -n "$container_image"; then
1788      test -n "$container_image" && build_static=y
1789      mkdir -p "tests/tcg/$target"
1790      config_target_mak=tests/tcg/$target/config-target.mak
1791      ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1792      echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1793      echo "TARGET_NAME=$arch" >> "$config_target_mak"
1794      echo "TARGET=$target" >> "$config_target_mak"
1795      write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1796      echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1797      echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1798
1799      # will GDB work with these binaries?
1800      if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1801          echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
1802      fi
1803
1804      echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1805      tcg_tests_targets="$tcg_tests_targets $target"
1806  fi
1807done
1808
1809if test "$tcg" = "enabled"; then
1810    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1811fi
1812)
1813
1814if test "$skip_meson" = no; then
1815  cross="config-meson.cross.new"
1816  meson_quote() {
1817    test $# = 0 && return
1818    echo "'$(echo $* | sed "s/ /','/g")'"
1819  }
1820
1821  echo "# Automatically generated by configure - do not modify" > $cross
1822  echo "[properties]" >> $cross
1823
1824  # unroll any custom device configs
1825  for a in $device_archs; do
1826      eval "c=\$devices_${a}"
1827      echo "${a}-softmmu = '$c'" >> $cross
1828  done
1829
1830  echo "[built-in options]" >> $cross
1831  echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1832  echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1833  test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1834  echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1835  echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1836  echo "[binaries]" >> $cross
1837  echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1838  test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1839  test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1840  echo "ar = [$(meson_quote $ar)]" >> $cross
1841  echo "nm = [$(meson_quote $nm)]" >> $cross
1842  echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1843  echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1844  if has $sdl2_config; then
1845    echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1846  fi
1847  echo "strip = [$(meson_quote $strip)]" >> $cross
1848  echo "widl = [$(meson_quote $widl)]" >> $cross
1849  echo "windres = [$(meson_quote $windres)]" >> $cross
1850  echo "windmc = [$(meson_quote $windmc)]" >> $cross
1851  if test "$cross_compile" = "yes"; then
1852    cross_arg="--cross-file config-meson.cross"
1853    echo "[host_machine]" >> $cross
1854    echo "system = '$targetos'" >> $cross
1855    case "$cpu" in
1856        i386)
1857            echo "cpu_family = 'x86'" >> $cross
1858            ;;
1859        *)
1860            echo "cpu_family = '$cpu'" >> $cross
1861            ;;
1862    esac
1863    echo "cpu = '$cpu'" >> $cross
1864    if test "$bigendian" = "yes" ; then
1865        echo "endian = 'big'" >> $cross
1866    else
1867        echo "endian = 'little'" >> $cross
1868    fi
1869  else
1870    cross_arg="--native-file config-meson.cross"
1871  fi
1872  mv $cross config-meson.cross
1873
1874  rm -rf meson-private meson-info meson-logs
1875
1876  # Built-in options
1877  test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1878  test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
1879  test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1880  test "$static" = yes && meson_option_add -Dprefer_static=true
1881  test "$pie" = no && meson_option_add -Db_pie=false
1882  test "$werror" = yes && meson_option_add -Dwerror=true
1883
1884  # QEMU options
1885  test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
1886  test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1887  test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1888  test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
1889  test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
1890  test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1891  run_meson() {
1892    NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
1893  }
1894  eval run_meson $meson_options
1895  if test "$?" -ne 0 ; then
1896      error_exit "meson setup failed"
1897  fi
1898  echo "$meson" > build.ninja.stamp
1899else
1900  if test -f meson-private/cmd_line.txt; then
1901    # Adjust old command line options that were removed
1902    # sed -i is not portable
1903    perl -i -ne '
1904      /^sphinx_build/ && next;
1905      print;' meson-private/cmd_line.txt
1906  fi
1907fi
1908
1909# Save the configure command line for later reuse.
1910cat <<EOD >config.status
1911#!/bin/sh
1912# Generated by configure.
1913# Run this file to recreate the current configuration.
1914# Compiler output produced by configure, useful for debugging
1915# configure, is in config.log if it exists.
1916EOD
1917
1918preserve_env() {
1919    envname=$1
1920
1921    eval envval=\$$envname
1922
1923    if test -n "$envval"
1924    then
1925	echo "$envname='$envval'" >> config.status
1926	echo "export $envname" >> config.status
1927    else
1928	echo "unset $envname" >> config.status
1929    fi
1930}
1931
1932# Preserve various env variables that influence what
1933# features/build target configure will detect
1934preserve_env AR
1935preserve_env AS
1936preserve_env CC
1937preserve_env CFLAGS
1938preserve_env CXX
1939preserve_env CXXFLAGS
1940preserve_env LD
1941preserve_env LDFLAGS
1942preserve_env LD_LIBRARY_PATH
1943preserve_env NM
1944preserve_env OBJCFLAGS
1945preserve_env OBJCOPY
1946preserve_env PATH
1947preserve_env PKG_CONFIG
1948preserve_env PKG_CONFIG_LIBDIR
1949preserve_env PKG_CONFIG_PATH
1950preserve_env PYTHON
1951preserve_env QEMU_GA_MANUFACTURER
1952preserve_env QEMU_GA_DISTRO
1953preserve_env QEMU_GA_VERSION
1954preserve_env SDL2_CONFIG
1955preserve_env SMBD
1956preserve_env STRIP
1957preserve_env WIDL
1958preserve_env WINDRES
1959preserve_env WINDMC
1960
1961printf "exec" >>config.status
1962for i in "$0" "$@"; do
1963  test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1964done
1965echo ' "$@"' >>config.status
1966chmod +x config.status
1967
1968rm -r "$TMPDIR1"
1969