| #!/bin/sh |
| ## |
| ## configure.sh |
| ## |
| ## This script is sourced by the main configure script and contains |
| ## utility functions and other common bits that aren't strictly libvpx |
| ## related. |
| ## |
| ## This build system is based in part on the FFmpeg configure script. |
| ## |
| |
| |
| # |
| # Logging / Output Functions |
| # |
| die_unknown(){ |
| echo "Unknown option \"$1\"." |
| echo "See $0 --help for available options." |
| clean_temp_files |
| exit 1 |
| } |
| |
| die() { |
| echo "$@" |
| echo |
| echo "Configuration failed. This could reflect a misconfiguration of your" |
| echo "toolchains, improper options selected, or another problem. If you" |
| echo "don't see any useful error messages above, the next step is to look" |
| echo "at the configure error log file ($logfile) to determine what" |
| echo "configure was trying to do when it died." |
| clean_temp_files |
| exit 1 |
| } |
| |
| log(){ |
| echo "$@" >>$logfile |
| } |
| |
| log_file(){ |
| log BEGIN $1 |
| cat -n $1 >>$logfile |
| log END $1 |
| } |
| |
| log_echo() { |
| echo "$@" |
| log "$@" |
| } |
| |
| fwrite () { |
| outfile=$1 |
| shift |
| echo "$@" >> ${outfile} |
| } |
| |
| show_help_pre(){ |
| for opt in ${CMDLINE_SELECT}; do |
| opt2=`echo $opt | sed -e 's;_;-;g'` |
| if enabled $opt; then |
| eval "toggle_${opt}=\"--disable-${opt2}\"" |
| else |
| eval "toggle_${opt}=\"--enable-${opt2} \"" |
| fi |
| done |
| |
| cat <<EOF |
| Usage: configure [options] |
| Options: |
| |
| Build options: |
| --help print this message |
| --log=yes|no|FILE file configure log is written to [config.log] |
| --target=TARGET target platform tuple [generic-gnu] |
| --cpu=CPU optimize for a specific cpu rather than a family |
| --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS] |
| --extra-cxxflags=ECXXFLAGS add ECXXFLAGS to CXXFLAGS [$CXXFLAGS] |
| ${toggle_extra_warnings} emit harmless warnings (always non-fatal) |
| ${toggle_werror} treat warnings as errors, if possible |
| (not available with all compilers) |
| ${toggle_optimizations} turn on/off compiler optimization flags |
| ${toggle_pic} turn on/off Position Independent Code |
| ${toggle_ccache} turn on/off compiler cache |
| ${toggle_debug} enable/disable debug mode |
| ${toggle_gprof} enable/disable gprof profiling instrumentation |
| ${toggle_gcov} enable/disable gcov coverage instrumentation |
| ${toggle_thumb} enable/disable building arm assembly in thumb mode |
| ${toggle_dependency_tracking} |
| disable to speed up one-time build |
| |
| Install options: |
| ${toggle_install_docs} control whether docs are installed |
| ${toggle_install_bins} control whether binaries are installed |
| ${toggle_install_libs} control whether libraries are installed |
| ${toggle_install_srcs} control whether sources are installed |
| |
| |
| EOF |
| } |
| |
| show_help_post(){ |
| cat <<EOF |
| |
| |
| NOTES: |
| Object files are built at the place where configure is launched. |
| |
| All boolean options can be negated. The default value is the opposite |
| of that shown above. If the option --disable-foo is listed, then |
| the default value for foo is enabled. |
| |
| Supported targets: |
| EOF |
| show_targets ${all_platforms} |
| echo |
| exit 1 |
| } |
| |
| show_targets() { |
| while [ -n "$*" ]; do |
| if [ "${1%%-*}" = "${2%%-*}" ]; then |
| if [ "${2%%-*}" = "${3%%-*}" ]; then |
| printf " %-24s %-24s %-24s\n" "$1" "$2" "$3" |
| shift; shift; shift |
| else |
| printf " %-24s %-24s\n" "$1" "$2" |
| shift; shift |
| fi |
| else |
| printf " %-24s\n" "$1" |
| shift |
| fi |
| done |
| } |
| |
| show_help() { |
| show_help_pre |
| show_help_post |
| } |
| |
| # |
| # List Processing Functions |
| # |
| set_all(){ |
| value=$1 |
| shift |
| for var in $*; do |
| eval $var=$value |
| done |
| } |
| |
| is_in(){ |
| value=$1 |
| shift |
| for var in $*; do |
| [ $var = $value ] && return 0 |
| done |
| return 1 |
| } |
| |
| add_cflags() { |
| CFLAGS="${CFLAGS} $@" |
| CXXFLAGS="${CXXFLAGS} $@" |
| } |
| |
| add_cflags_only() { |
| CFLAGS="${CFLAGS} $@" |
| } |
| |
| add_cxxflags_only() { |
| CXXFLAGS="${CXXFLAGS} $@" |
| } |
| |
| add_ldflags() { |
| LDFLAGS="${LDFLAGS} $@" |
| } |
| |
| add_asflags() { |
| ASFLAGS="${ASFLAGS} $@" |
| } |
| |
| add_extralibs() { |
| extralibs="${extralibs} $@" |
| } |
| |
| # |
| # Boolean Manipulation Functions |
| # |
| |
| enable_feature(){ |
| set_all yes $* |
| } |
| |
| disable_feature(){ |
| set_all no $* |
| } |
| |
| enabled(){ |
| eval test "x\$$1" = "xyes" |
| } |
| |
| disabled(){ |
| eval test "x\$$1" = "xno" |
| } |
| |
| enable_codec(){ |
| enabled "${1}" || echo " enabling ${1}" |
| enable_feature "${1}" |
| |
| is_in "${1}" vp8 vp9 && enable_feature "${1}_encoder" "${1}_decoder" |
| } |
| |
| disable_codec(){ |
| disabled "${1}" || echo " disabling ${1}" |
| disable_feature "${1}" |
| |
| is_in "${1}" vp8 vp9 && disable_feature "${1}_encoder" "${1}_decoder" |
| } |
| |
| # Iterates through positional parameters, checks to confirm the parameter has |
| # not been explicitly (force) disabled, and enables the setting controlled by |
| # the parameter when the setting is not disabled. |
| # Note: Does NOT alter RTCD generation options ($RTCD_OPTIONS). |
| soft_enable() { |
| for var in $*; do |
| if ! disabled $var; then |
| enabled $var || log_echo " enabling $var" |
| enable_feature $var |
| fi |
| done |
| } |
| |
| # Iterates through positional parameters, checks to confirm the parameter has |
| # not been explicitly (force) enabled, and disables the setting controlled by |
| # the parameter when the setting is not enabled. |
| # Note: Does NOT alter RTCD generation options ($RTCD_OPTIONS). |
| soft_disable() { |
| for var in $*; do |
| if ! enabled $var; then |
| disabled $var || log_echo " disabling $var" |
| disable_feature $var |
| fi |
| done |
| } |
| |
| # |
| # Text Processing Functions |
| # |
| toupper(){ |
| echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ |
| } |
| |
| tolower(){ |
| echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz |
| } |
| |
| # |
| # Temporary File Functions |
| # |
| source_path=${0%/*} |
| enable_feature source_path_used |
| if [ -z "$source_path" ] || [ "$source_path" = "." ]; then |
| source_path="`pwd`" |
| disable_feature source_path_used |
| fi |
| |
| if test ! -z "$TMPDIR" ; then |
| TMPDIRx="${TMPDIR}" |
| elif test ! -z "$TEMPDIR" ; then |
| TMPDIRx="${TEMPDIR}" |
| else |
| TMPDIRx="/tmp" |
| fi |
| RAND=$(awk 'BEGIN { srand(); printf "%d\n",(rand() * 32768)}') |
| TMP_H="${TMPDIRx}/vpx-conf-$$-${RAND}.h" |
| TMP_C="${TMPDIRx}/vpx-conf-$$-${RAND}.c" |
| TMP_CC="${TMPDIRx}/vpx-conf-$$-${RAND}.cc" |
| TMP_O="${TMPDIRx}/vpx-conf-$$-${RAND}.o" |
| TMP_X="${TMPDIRx}/vpx-conf-$$-${RAND}.x" |
| TMP_ASM="${TMPDIRx}/vpx-conf-$$-${RAND}.asm" |
| |
| clean_temp_files() { |
| rm -f ${TMP_C} ${TMP_CC} ${TMP_H} ${TMP_O} ${TMP_X} ${TMP_ASM} |
| enabled gcov && rm -f ${TMP_C%.c}.gcno ${TMP_CC%.cc}.gcno |
| } |
| |
| # |
| # Toolchain Check Functions |
| # |
| check_cmd() { |
| enabled external_build && return |
| log "$@" |
| "$@" >>${logfile} 2>&1 |
| } |
| |
| check_cc() { |
| log check_cc "$@" |
| cat >${TMP_C} |
| log_file ${TMP_C} |
| check_cmd ${CC} ${CFLAGS} "$@" -c -o ${TMP_O} ${TMP_C} |
| } |
| |
| check_cxx() { |
| log check_cxx "$@" |
| cat >${TMP_CC} |
| log_file ${TMP_CC} |
| check_cmd ${CXX} ${CXXFLAGS} "$@" -c -o ${TMP_O} ${TMP_CC} |
| } |
| |
| check_cpp() { |
| log check_cpp "$@" |
| cat > ${TMP_C} |
| log_file ${TMP_C} |
| check_cmd ${CC} ${CFLAGS} "$@" -E -o ${TMP_O} ${TMP_C} |
| } |
| |
| check_ld() { |
| log check_ld "$@" |
| check_cc $@ \ |
| && check_cmd ${LD} ${LDFLAGS} "$@" -o ${TMP_X} ${TMP_O} ${extralibs} |
| } |
| |
| check_lib() { |
| log check_lib "$@" |
| check_cc $@ \ |
| && check_cmd ${LD} ${LDFLAGS} -o ${TMP_X} ${TMP_O} "$@" ${extralibs} |
| } |
| |
| check_header(){ |
| log check_header "$@" |
| header=$1 |
| shift |
| var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'` |
| disable_feature $var |
| check_cpp "$@" <<EOF && enable_feature $var |
| #include "$header" |
| int x; |
| EOF |
| } |
| |
| check_cflags() { |
| log check_cflags "$@" |
| check_cc -Werror "$@" <<EOF |
| int x; |
| EOF |
| } |
| |
| check_cxxflags() { |
| log check_cxxflags "$@" |
| |
| # Catch CFLAGS that trigger CXX warnings |
| case "$CXX" in |
| *c++-analyzer|*clang++|*g++*) |
| check_cxx -Werror "$@" <<EOF |
| int x; |
| EOF |
| ;; |
| *) |
| check_cxx -Werror "$@" <<EOF |
| int x; |
| EOF |
| ;; |
| esac |
| } |
| |
| check_add_cflags() { |
| check_cxxflags "$@" && add_cxxflags_only "$@" |
| check_cflags "$@" && add_cflags_only "$@" |
| } |
| |
| check_add_cxxflags() { |
| check_cxxflags "$@" && add_cxxflags_only "$@" |
| } |
| |
| check_add_asflags() { |
| log add_asflags "$@" |
| add_asflags "$@" |
| } |
| |
| check_add_ldflags() { |
| log add_ldflags "$@" |
| add_ldflags "$@" |
| } |
| |
| check_asm_align() { |
| log check_asm_align "$@" |
| cat >${TMP_ASM} <<EOF |
| section .rodata |
| align 16 |
| EOF |
| log_file ${TMP_ASM} |
| check_cmd ${AS} ${ASFLAGS} -o ${TMP_O} ${TMP_ASM} |
| readelf -WS ${TMP_O} >${TMP_X} |
| log_file ${TMP_X} |
| if ! grep -q '\.rodata .* 16$' ${TMP_X}; then |
| die "${AS} ${ASFLAGS} does not support section alignment (nasm <=2.08?)" |
| fi |
| } |
| |
| # tests for -m$1 toggling the feature given in $2. If $2 is empty $1 is used. |
| check_gcc_machine_option() { |
| opt="$1" |
| feature="$2" |
| [ -n "$feature" ] || feature="$opt" |
| |
| if enabled gcc && ! disabled "$feature" && ! check_cflags "-m$opt"; then |
| RTCD_OPTIONS="${RTCD_OPTIONS}--disable-$feature " |
| else |
| soft_enable "$feature" |
| fi |
| } |
| |
| # tests for -m$2, -m$3, -m$4... toggling the feature given in $1. |
| check_gcc_machine_options() { |
| feature="$1" |
| shift |
| flags="-m$1" |
| shift |
| for opt in $*; do |
| flags="$flags -m$opt" |
| done |
| |
| if enabled gcc && ! disabled "$feature" && ! check_cflags $flags; then |
| RTCD_OPTIONS="${RTCD_OPTIONS}--disable-$feature " |
| else |
| soft_enable "$feature" |
| fi |
| } |
| |
| check_gcc_avx512_compiles() { |
| if disabled gcc; then |
| return |
| fi |
| |
| check_cc -mavx512f <<EOF |
| #include <immintrin.h> |
| void f(void) { |
| __m512i x = _mm512_set1_epi16(0); |
| (void)x; |
| } |
| EOF |
| compile_result=$? |
| if [ ${compile_result} -ne 0 ]; then |
| log_echo " disabling avx512: not supported by compiler" |
| disable_feature avx512 |
| RTCD_OPTIONS="${RTCD_OPTIONS}--disable-avx512 " |
| fi |
| } |
| |
| write_common_config_banner() { |
| print_webm_license config.mk "##" "" |
| echo '# This file automatically generated by configure. Do not edit!' >> config.mk |
| echo "TOOLCHAIN := ${toolchain}" >> config.mk |
| |
| case ${toolchain} in |
| *-linux-rvct) |
| echo "ALT_LIBC := ${alt_libc}" >> config.mk |
| ;; |
| esac |
| } |
| |
| write_common_config_targets() { |
| for t in ${all_targets}; do |
| if enabled ${t}; then |
| if enabled child; then |
| fwrite config.mk "ALL_TARGETS += ${t}-${toolchain}" |
| else |
| fwrite config.mk "ALL_TARGETS += ${t}" |
| fi |
| fi |
| true; |
| done |
| true |
| } |
| |
| write_common_target_config_mk() { |
| saved_CC="${CC}" |
| saved_CXX="${CXX}" |
| enabled ccache && CC="ccache ${CC}" |
| enabled ccache && CXX="ccache ${CXX}" |
| print_webm_license $1 "##" "" |
| |
| cat >> $1 << EOF |
| # This file automatically generated by configure. Do not edit! |
| SRC_PATH="$source_path" |
| SRC_PATH_BARE=$source_path |
| BUILD_PFX=${BUILD_PFX} |
| TOOLCHAIN=${toolchain} |
| ASM_CONVERSION=${asm_conversion_cmd:-${source_path}/build/make/ads2gas.pl} |
| GEN_VCPROJ=${gen_vcproj_cmd} |
| MSVS_ARCH_DIR=${msvs_arch_dir} |
| |
| CC=${CC} |
| CXX=${CXX} |
| AR=${AR} |
| LD=${LD} |
| AS=${AS} |
| STRIP=${STRIP} |
| NM=${NM} |
| |
| CFLAGS = ${CFLAGS} |
| CXXFLAGS = ${CXXFLAGS} |
| ARFLAGS = -crs\$(if \$(quiet),,v) |
| LDFLAGS = ${LDFLAGS} |
| ASFLAGS = ${ASFLAGS} |
| extralibs = ${extralibs} |
| AS_SFX = ${AS_SFX:-.asm} |
| EXE_SFX = ${EXE_SFX} |
| VCPROJ_SFX = ${VCPROJ_SFX} |
| RTCD_OPTIONS = ${RTCD_OPTIONS} |
| LIBYUV_CXXFLAGS = ${LIBYUV_CXXFLAGS} |
| EOF |
| |
| if enabled rvct; then cat >> $1 << EOF |
| fmt_deps = sed -e 's;^__image.axf;\${@:.d=.o} \$@;' #hide |
| EOF |
| else cat >> $1 << EOF |
| fmt_deps = sed -e 's;^\([a-zA-Z0-9_]*\)\.o;\${@:.d=.o} \$@;' |
| EOF |
| fi |
| |
| print_config_mk VPX_ARCH "${1}" ${ARCH_LIST} |
| print_config_mk HAVE "${1}" ${HAVE_LIST} |
| print_config_mk CONFIG "${1}" ${CONFIG_LIST} |
| print_config_mk HAVE "${1}" gnu_strip |
| |
| enabled msvs && echo "CONFIG_VS_VERSION=${vs_version}" >> "${1}" |
| |
| CC="${saved_CC}" |
| CXX="${saved_CXX}" |
| } |
| |
| write_common_target_config_h() { |
| print_webm_license ${TMP_H} "/*" " */" |
| cat >> ${TMP_H} << EOF |
| /* This file automatically generated by configure. Do not edit! */ |
| #ifndef VPX_CONFIG_H |
| #define VPX_CONFIG_H |
| #define RESTRICT ${RESTRICT} |
| #define INLINE ${INLINE} |
| EOF |
| print_config_h VPX_ARCH "${TMP_H}" ${ARCH_LIST} |
| print_config_h HAVE "${TMP_H}" ${HAVE_LIST} |
| print_config_h CONFIG "${TMP_H}" ${CONFIG_LIST} |
| print_config_vars_h "${TMP_H}" ${VAR_LIST} |
| echo "#endif /* VPX_CONFIG_H */" >> ${TMP_H} |
| mkdir -p `dirname "$1"` |
| cmp "$1" ${TMP_H} >/dev/null 2>&1 || mv ${TMP_H} "$1" |
| } |
| |
| write_win_arm64_neon_h_workaround() { |
| print_webm_license ${TMP_H} "/*" " */" |
| cat >> ${TMP_H} << EOF |
| /* This file automatically generated by configure. Do not edit! */ |
| #ifndef VPX_WIN_ARM_NEON_H_WORKAROUND |
| #define VPX_WIN_ARM_NEON_H_WORKAROUND |
| /* The Windows SDK has arm_neon.h, but unlike on other platforms it is |
| * ARM32-only. ARM64 NEON support is provided by arm64_neon.h, a proper |
| * superset of arm_neon.h. Work around this by providing a more local |
| * arm_neon.h that simply #includes arm64_neon.h. |
| */ |
| #include <arm64_neon.h> |
| #endif /* VPX_WIN_ARM_NEON_H_WORKAROUND */ |
| EOF |
| mkdir -p `dirname "$1"` |
| cmp "$1" ${TMP_H} >/dev/null 2>&1 || mv ${TMP_H} "$1" |
| } |
| |
| process_common_cmdline() { |
| for opt in "$@"; do |
| optval="${opt#*=}" |
| case "$opt" in |
| --child) |
| enable_feature child |
| ;; |
| --log*) |
| logging="$optval" |
| if ! disabled logging ; then |
| enabled logging || logfile="$logging" |
| else |
| logfile=/dev/null |
| fi |
| ;; |
| --target=*) |
| toolchain="${toolchain:-${optval}}" |
| ;; |
| --force-target=*) |
| toolchain="${toolchain:-${optval}}" |
| enable_feature force_toolchain |
| ;; |
| --cpu=*) |
| tune_cpu="$optval" |
| ;; |
| --extra-cflags=*) |
| extra_cflags="${optval}" |
| ;; |
| --extra-cxxflags=*) |
| extra_cxxflags="${optval}" |
| ;; |
| --enable-?*|--disable-?*) |
| eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'` |
| if is_in ${option} ${ARCH_EXT_LIST}; then |
| [ $action = "disable" ] && RTCD_OPTIONS="${RTCD_OPTIONS}--disable-${option} " |
| elif [ $action = "disable" ] && ! disabled $option ; then |
| is_in ${option} ${CMDLINE_SELECT} || die_unknown $opt |
| log_echo " disabling $option" |
| elif [ $action = "enable" ] && ! enabled $option ; then |
| is_in ${option} ${CMDLINE_SELECT} || die_unknown $opt |
| log_echo " enabling $option" |
| fi |
| ${action}_feature $option |
| ;; |
| --require-?*) |
| eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'` |
| if is_in ${option} ${ARCH_EXT_LIST}; then |
| RTCD_OPTIONS="${RTCD_OPTIONS}${opt} " |
| else |
| die_unknown $opt |
| fi |
| ;; |
| --force-enable-?*|--force-disable-?*) |
| eval `echo "$opt" | sed 's/--force-/action=/;s/-/ option=/;s/-/_/g'` |
| ${action}_feature $option |
| ;; |
| --libc=*) |
| [ -d "${optval}" ] || die "Not a directory: ${optval}" |
| disable_feature builtin_libc |
| alt_libc="${optval}" |
| ;; |
| --as=*) |
| [ "${optval}" = yasm ] || [ "${optval}" = nasm ] \ |
| || [ "${optval}" = auto ] \ |
| || die "Must be yasm, nasm or auto: ${optval}" |
| alt_as="${optval}" |
| ;; |
| --size-limit=*) |
| w="${optval%%x*}" |
| h="${optval##*x}" |
| VAR_LIST="DECODE_WIDTH_LIMIT ${w} DECODE_HEIGHT_LIMIT ${h}" |
| [ ${w} -gt 0 ] && [ ${h} -gt 0 ] || die "Invalid size-limit: too small." |
| [ ${w} -lt 65536 ] && [ ${h} -lt 65536 ] \ |
| || die "Invalid size-limit: too big." |
| enable_feature size_limit |
| ;; |
| --prefix=*) |
| prefix="${optval}" |
| ;; |
| --libdir=*) |
| libdir="${optval}" |
| ;; |
| --libc|--as|--prefix|--libdir) |
| die "Option ${opt} requires argument" |
| ;; |
| --help|-h) |
| show_help |
| ;; |
| *) |
| die_unknown $opt |
| ;; |
| esac |
| done |
| } |
| |
| process_cmdline() { |
| for opt do |
| optval="${opt#*=}" |
| case "$opt" in |
| *) |
| process_common_cmdline $opt |
| ;; |
| esac |
| done |
| } |
| |
| post_process_common_cmdline() { |
| prefix="${prefix:-/usr/local}" |
| prefix="${prefix%/}" |
| libdir="${libdir:-${prefix}/lib}" |
| libdir="${libdir%/}" |
| if [ "${libdir#${prefix}}" = "${libdir}" ]; then |
| die "Libdir ${libdir} must be a subdirectory of ${prefix}" |
| fi |
| } |
| |
| post_process_cmdline() { |
| true; |
| } |
| |
| setup_gnu_toolchain() { |
| CC=${CC:-${CROSS}gcc} |
| CXX=${CXX:-${CROSS}g++} |
| AR=${AR:-${CROSS}ar} |
| LD=${LD:-${CROSS}${link_with_cc:-ld}} |
| AS=${AS:-${CROSS}as} |
| STRIP=${STRIP:-${CROSS}strip} |
| NM=${NM:-${CROSS}nm} |
| AS_SFX=.S |
| EXE_SFX= |
| } |
| |
| # Reliably find the newest available Darwin SDKs. (Older versions of |
| # xcrun don't support --show-sdk-path.) |
| show_darwin_sdk_path() { |
| xcrun --sdk $1 --show-sdk-path 2>/dev/null || |
| xcodebuild -sdk $1 -version Path 2>/dev/null |
| } |
| |
| # Print the major version number of the Darwin SDK specified by $1. |
| show_darwin_sdk_major_version() { |
| xcrun --sdk $1 --show-sdk-version 2>/dev/null | cut -d. -f1 |
| } |
| |
| # Print the Xcode version. |
| show_xcode_version() { |
| xcodebuild -version | head -n1 | cut -d' ' -f2 |
| } |
| |
| # Fails when Xcode version is less than 6.3. |
| check_xcode_minimum_version() { |
| xcode_major=$(show_xcode_version | cut -f1 -d.) |
| xcode_minor=$(show_xcode_version | cut -f2 -d.) |
| xcode_min_major=6 |
| xcode_min_minor=3 |
| if [ ${xcode_major} -lt ${xcode_min_major} ]; then |
| return 1 |
| fi |
| if [ ${xcode_major} -eq ${xcode_min_major} ] \ |
| && [ ${xcode_minor} -lt ${xcode_min_minor} ]; then |
| return 1 |
| fi |
| } |
| |
| process_common_toolchain() { |
| if [ -z "$toolchain" ]; then |
| gcctarget="${CHOST:-$(gcc -dumpmachine 2> /dev/null)}" |
| # detect tgt_isa |
| case "$gcctarget" in |
| aarch64*) |
| tgt_isa=arm64 |
| ;; |
| armv7*-hardfloat* | armv7*-gnueabihf | arm-*-gnueabihf) |
| tgt_isa=armv7 |
| float_abi=hard |
| ;; |
| armv7*) |
| tgt_isa=armv7 |
| float_abi=softfp |
| ;; |
| *x86_64*|*amd64*) |
| tgt_isa=x86_64 |
| ;; |
| *i[3456]86*) |
| tgt_isa=x86 |
| ;; |
| *sparc*) |
| tgt_isa=sparc |
| ;; |
| power*64le*-*) |
| tgt_isa=ppc64le |
| ;; |
| *mips64el*) |
| tgt_isa=mips64 |
| ;; |
| *mips32el*) |
| tgt_isa=mips32 |
| ;; |
| esac |
| |
| # detect tgt_os |
| case "$gcctarget" in |
| *darwin1[0-8]*) |
| tgt_isa=x86_64 |
| tgt_os=`echo $gcctarget | sed 's/.*\(darwin1[0-8]\).*/\1/'` |
| ;; |
| x86_64*mingw32*) |
| tgt_os=win64 |
| ;; |
| x86_64*cygwin*) |
| tgt_os=win64 |
| ;; |
| *mingw32*|*cygwin*) |
| [ -z "$tgt_isa" ] && tgt_isa=x86 |
| tgt_os=win32 |
| ;; |
| *linux*|*bsd*) |
| tgt_os=linux |
| ;; |
| *solaris2.10) |
| tgt_os=solaris |
| ;; |
| *os2*) |
| tgt_os=os2 |
| ;; |
| esac |
| |
| if [ -n "$tgt_isa" ] && [ -n "$tgt_os" ]; then |
| toolchain=${tgt_isa}-${tgt_os}-gcc |
| fi |
| fi |
| |
| toolchain=${toolchain:-generic-gnu} |
| |
| is_in ${toolchain} ${all_platforms} || enabled force_toolchain \ |
| || die "Unrecognized toolchain '${toolchain}'" |
| |
| enabled child || log_echo "Configuring for target '${toolchain}'" |
| |
| # |
| # Set up toolchain variables |
| # |
| tgt_isa=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $1}') |
| tgt_os=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $2}') |
| tgt_cc=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $3}') |
| |
| # Mark the specific ISA requested as enabled |
| soft_enable ${tgt_isa} |
| enable_feature ${tgt_os} |
| enable_feature ${tgt_cc} |
| |
| # Enable the architecture family |
| case ${tgt_isa} in |
| arm*) |
| enable_feature arm |
| ;; |
| mips*) |
| enable_feature mips |
| ;; |
| ppc*) |
| enable_feature ppc |
| ;; |
| esac |
| |
| # PIC is probably what we want when building shared libs |
| enabled shared && soft_enable pic |
| |
| # Minimum iOS version for all target platforms (darwin and iphonesimulator). |
| # Shared library framework builds are only possible on iOS 8 and later. |
| if enabled shared; then |
| IOS_VERSION_OPTIONS="--enable-shared" |
| IOS_VERSION_MIN="8.0" |
| else |
| IOS_VERSION_OPTIONS="" |
| IOS_VERSION_MIN="7.0" |
| fi |
| |
| # Handle darwin variants. Newer SDKs allow targeting older |
| # platforms, so use the newest one available. |
| case ${toolchain} in |
| arm*-darwin*) |
| add_cflags "-miphoneos-version-min=${IOS_VERSION_MIN}" |
| iphoneos_sdk_dir="$(show_darwin_sdk_path iphoneos)" |
| if [ -d "${iphoneos_sdk_dir}" ]; then |
| add_cflags "-isysroot ${iphoneos_sdk_dir}" |
| add_ldflags "-isysroot ${iphoneos_sdk_dir}" |
| fi |
| ;; |
| x86*-darwin*) |
| osx_sdk_dir="$(show_darwin_sdk_path macosx)" |
| if [ -d "${osx_sdk_dir}" ]; then |
| add_cflags "-isysroot ${osx_sdk_dir}" |
| add_ldflags "-isysroot ${osx_sdk_dir}" |
| fi |
| ;; |
| esac |
| |
| case ${toolchain} in |
| *-darwin8-*) |
| add_cflags "-mmacosx-version-min=10.4" |
| add_ldflags "-mmacosx-version-min=10.4" |
| ;; |
| *-darwin9-*) |
| add_cflags "-mmacosx-version-min=10.5" |
| add_ldflags "-mmacosx-version-min=10.5" |
| ;; |
| *-darwin10-*) |
| add_cflags "-mmacosx-version-min=10.6" |
| add_ldflags "-mmacosx-version-min=10.6" |
| ;; |
| *-darwin11-*) |
| add_cflags "-mmacosx-version-min=10.7" |
| add_ldflags "-mmacosx-version-min=10.7" |
| ;; |
| *-darwin12-*) |
| add_cflags "-mmacosx-version-min=10.8" |
| add_ldflags "-mmacosx-version-min=10.8" |
| ;; |
| *-darwin13-*) |
| add_cflags "-mmacosx-version-min=10.9" |
| add_ldflags "-mmacosx-version-min=10.9" |
| ;; |
| *-darwin14-*) |
| add_cflags "-mmacosx-version-min=10.10" |
| add_ldflags "-mmacosx-version-min=10.10" |
| ;; |
| *-darwin15-*) |
| add_cflags "-mmacosx-version-min=10.11" |
| add_ldflags "-mmacosx-version-min=10.11" |
| ;; |
| *-darwin16-*) |
| add_cflags "-mmacosx-version-min=10.12" |
| add_ldflags "-mmacosx-version-min=10.12" |
| ;; |
| *-darwin17-*) |
| add_cflags "-mmacosx-version-min=10.13" |
| add_ldflags "-mmacosx-version-min=10.13" |
| ;; |
| *-darwin18-*) |
| add_cflags "-mmacosx-version-min=10.14" |
| add_ldflags "-mmacosx-version-min=10.14" |
| ;; |
| *-iphonesimulator-*) |
| add_cflags "-miphoneos-version-min=${IOS_VERSION_MIN}" |
| add_ldflags "-miphoneos-version-min=${IOS_VERSION_MIN}" |
| iossim_sdk_dir="$(show_darwin_sdk_path iphonesimulator)" |
| if [ -d "${iossim_sdk_dir}" ]; then |
| add_cflags "-isysroot ${iossim_sdk_dir}" |
| add_ldflags "-isysroot ${iossim_sdk_dir}" |
| fi |
| ;; |
| esac |
| |
| # Handle Solaris variants. Solaris 10 needs -lposix4 |
| case ${toolchain} in |
| sparc-solaris-*) |
| add_extralibs -lposix4 |
| ;; |
| *-solaris-*) |
| add_extralibs -lposix4 |
| ;; |
| esac |
| |
| # Process ARM architecture variants |
| case ${toolchain} in |
| arm*) |
| # on arm, isa versions are supersets |
| case ${tgt_isa} in |
| arm64|armv8) |
| soft_enable neon |
| ;; |
| armv7|armv7s) |
| soft_enable neon |
| # Only enable neon_asm when neon is also enabled. |
| enabled neon && soft_enable neon_asm |
| # If someone tries to force it through, die. |
| if disabled neon && enabled neon_asm; then |
| die "Disabling neon while keeping neon-asm is not supported" |
| fi |
| ;; |
| esac |
| |
| asm_conversion_cmd="cat" |
| |
| case ${tgt_cc} in |
| gcc) |
| link_with_cc=gcc |
| setup_gnu_toolchain |
| arch_int=${tgt_isa##armv} |
| arch_int=${arch_int%%te} |
| tune_cflags="-mtune=" |
| if [ ${tgt_isa} = "armv7" ] || [ ${tgt_isa} = "armv7s" ]; then |
| if [ -z "${float_abi}" ]; then |
| check_cpp <<EOF && float_abi=hard || float_abi=softfp |
| #ifndef __ARM_PCS_VFP |
| #error "not hardfp" |
| #endif |
| EOF |
| fi |
| check_add_cflags -march=armv7-a -mfloat-abi=${float_abi} |
| check_add_asflags -march=armv7-a -mfloat-abi=${float_abi} |
| |
| if enabled neon || enabled neon_asm; then |
| check_add_cflags -mfpu=neon #-ftree-vectorize |
| check_add_asflags -mfpu=neon |
| fi |
| elif [ ${tgt_isa} = "arm64" ] || [ ${tgt_isa} = "armv8" ]; then |
| check_add_cflags -march=armv8-a |
| check_add_asflags -march=armv8-a |
| else |
| check_add_cflags -march=${tgt_isa} |
| check_add_asflags -march=${tgt_isa} |
| fi |
| |
| enabled debug && add_asflags -g |
| asm_conversion_cmd="${source_path}/build/make/ads2gas.pl" |
| |
| case ${tgt_os} in |
| win*) |
| asm_conversion_cmd="$asm_conversion_cmd -noelf" |
| AS="$CC -c" |
| EXE_SFX=.exe |
| enable_feature thumb |
| ;; |
| esac |
| |
| if enabled thumb; then |
| asm_conversion_cmd="$asm_conversion_cmd -thumb" |
| check_add_cflags -mthumb |
| check_add_asflags -mthumb -mimplicit-it=always |
| fi |
| ;; |
| vs*) |
| # A number of ARM-based Windows platforms are constrained by their |
| # respective SDKs' limitations. Fortunately, these are all 32-bit ABIs |
| # and so can be selected as 'win32'. |
| if [ ${tgt_os} = "win32" ]; then |
| asm_conversion_cmd="${source_path}/build/make/ads2armasm_ms.pl" |
| AS_SFX=.S |
| msvs_arch_dir=arm-msvs |
| disable_feature multithread |
| disable_feature unit_tests |
| if [ ${tgt_cc##vs} -ge 12 ]; then |
| # MSVC 2013 doesn't allow doing plain .exe projects for ARM32, |
| # only "AppContainerApplication" which requires an AppxManifest. |
| # Therefore disable the examples, just build the library. |
| disable_feature examples |
| disable_feature tools |
| fi |
| else |
| # Windows 10 on ARM, on the other hand, has full Windows SDK support |
| # for building Win32 ARM64 applications in addition to ARM64 |
| # Windows Store apps. It is the only 64-bit ARM ABI that |
| # Windows supports, so it is the default definition of 'win64'. |
| # ARM64 build support officially shipped in Visual Studio 15.9.0. |
| |
| # Because the ARM64 Windows SDK's arm_neon.h is ARM32-specific |
| # while LLVM's is not, probe its validity. |
| if enabled neon; then |
| if [ -n "${CC}" ]; then |
| check_header arm_neon.h || check_header arm64_neon.h && \ |
| enable_feature win_arm64_neon_h_workaround |
| else |
| # If a probe is not possible, assume this is the pure Windows |
| # SDK and so the workaround is necessary. |
| enable_feature win_arm64_neon_h_workaround |
| fi |
| fi |
| fi |
| ;; |
| rvct) |
| CC=armcc |
| AR=armar |
| AS=armasm |
| LD="${source_path}/build/make/armlink_adapter.sh" |
| STRIP=arm-none-linux-gnueabi-strip |
| NM=arm-none-linux-gnueabi-nm |
| tune_cflags="--cpu=" |
| tune_asflags="--cpu=" |
| if [ -z "${tune_cpu}" ]; then |
| if [ ${tgt_isa} = "armv7" ]; then |
| if enabled neon || enabled neon_asm |
| then |
| check_add_cflags --fpu=softvfp+vfpv3 |
| check_add_asflags --fpu=softvfp+vfpv3 |
| fi |
| check_add_cflags --cpu=Cortex-A8 |
| check_add_asflags --cpu=Cortex-A8 |
| else |
| check_add_cflags --cpu=${tgt_isa##armv} |
| check_add_asflags --cpu=${tgt_isa##armv} |
| fi |
| fi |
| arch_int=${tgt_isa##armv} |
| arch_int=${arch_int%%te} |
| enabled debug && add_asflags -g |
| add_cflags --gnu |
| add_cflags --enum_is_int |
| add_cflags --wchar32 |
| ;; |
| esac |
| |
| case ${tgt_os} in |
| none*) |
| disable_feature multithread |
| disable_feature os_support |
| ;; |
| |
| android*) |
| echo "Assuming standalone build with NDK toolchain." |
| echo "See build/make/Android.mk for details." |
| check_add_ldflags -static |
| soft_enable unit_tests |
| ;; |
| |
| darwin*) |
| if ! enabled external_build; then |
| XCRUN_FIND="xcrun --sdk iphoneos --find" |
| CXX="$(${XCRUN_FIND} clang++)" |
| CC="$(${XCRUN_FIND} clang)" |
| AR="$(${XCRUN_FIND} ar)" |
| AS="$(${XCRUN_FIND} as)" |
| STRIP="$(${XCRUN_FIND} strip)" |
| NM="$(${XCRUN_FIND} nm)" |
| RANLIB="$(${XCRUN_FIND} ranlib)" |
| AS_SFX=.S |
| LD="${CXX:-$(${XCRUN_FIND} ld)}" |
| |
| # ASFLAGS is written here instead of using check_add_asflags |
| # because we need to overwrite all of ASFLAGS and purge the |
| # options that were put in above |
| ASFLAGS="-arch ${tgt_isa} -g" |
| |
| add_cflags -arch ${tgt_isa} |
| add_ldflags -arch ${tgt_isa} |
| |
| alt_libc="$(show_darwin_sdk_path iphoneos)" |
| if [ -d "${alt_libc}" ]; then |
| add_cflags -isysroot ${alt_libc} |
| fi |
| |
| if [ "${LD}" = "${CXX}" ]; then |
| add_ldflags -miphoneos-version-min="${IOS_VERSION_MIN}" |
| else |
| add_ldflags -ios_version_min "${IOS_VERSION_MIN}" |
| fi |
| |
| for d in lib usr/lib usr/lib/system; do |
| try_dir="${alt_libc}/${d}" |
| [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}" |
| done |
| |
| case ${tgt_isa} in |
| armv7|armv7s|armv8|arm64) |
| if enabled neon && ! check_xcode_minimum_version; then |
| soft_disable neon |
| log_echo " neon disabled: upgrade Xcode (need v6.3+)." |
| if enabled neon_asm; then |
| soft_disable neon_asm |
| log_echo " neon_asm disabled: upgrade Xcode (need v6.3+)." |
| fi |
| fi |
| ;; |
| esac |
| |
| asm_conversion_cmd="${source_path}/build/make/ads2gas_apple.pl" |
| |
| if [ "$(show_darwin_sdk_major_version iphoneos)" -gt 8 ]; then |
| check_add_cflags -fembed-bitcode |
| check_add_asflags -fembed-bitcode |
| check_add_ldflags -fembed-bitcode |
| fi |
| fi |
| ;; |
| |
| linux*) |
| enable_feature linux |
| if enabled rvct; then |
| # Check if we have CodeSourcery GCC in PATH. Needed for |
| # libraries |
| which arm-none-linux-gnueabi-gcc 2>&- || \ |
| die "Couldn't find CodeSourcery GCC from PATH" |
| |
| # Use armcc as a linker to enable translation of |
| # some gcc specific options such as -lm and -lpthread. |
| LD="armcc --translate_gcc" |
| |
| # create configuration file (uses path to CodeSourcery GCC) |
| armcc --arm_linux_configure --arm_linux_config_file=arm_linux.cfg |
| |
| add_cflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg |
| add_asflags --no_hide_all --apcs=/interwork |
| add_ldflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg |
| enabled pic && add_cflags --apcs=/fpic |
| enabled pic && add_asflags --apcs=/fpic |
| enabled shared && add_cflags --shared |
| fi |
| ;; |
| esac |
| ;; |
| mips*) |
| link_with_cc=gcc |
| setup_gnu_toolchain |
| tune_cflags="-mtune=" |
| if enabled dspr2; then |
| check_add_cflags -mips32r2 -mdspr2 |
| fi |
| |
| if enabled runtime_cpu_detect; then |
| disable_feature runtime_cpu_detect |
| fi |
| |
| if [ -n "${tune_cpu}" ]; then |
| case ${tune_cpu} in |
| p5600) |
| check_add_cflags -mips32r5 -mload-store-pairs |
| check_add_cflags -msched-weight -mhard-float -mfp64 |
| check_add_asflags -mips32r5 -mhard-float -mfp64 |
| check_add_ldflags -mfp64 |
| ;; |
| i6400|p6600) |
| check_add_cflags -mips64r6 -mabi=64 -msched-weight |
| check_add_cflags -mload-store-pairs -mhard-float -mfp64 |
| check_add_asflags -mips64r6 -mabi=64 -mhard-float -mfp64 |
| check_add_ldflags -mips64r6 -mabi=64 -mfp64 |
| ;; |
| esac |
| |
| if enabled msa; then |
| # TODO(libyuv:793) |
| # The new mips functions in libyuv do not build |
| # with the toolchains we currently use for testing. |
| soft_disable libyuv |
| |
| add_cflags -mmsa |
| add_asflags -mmsa |
| add_ldflags -mmsa |
| fi |
| fi |
| |
| if enabled mmi; then |
| tgt_isa=loongson3a |
| check_add_ldflags -march=loongson3a |
| fi |
| |
| check_add_cflags -march=${tgt_isa} |
| check_add_asflags -march=${tgt_isa} |
| check_add_asflags -KPIC |
| ;; |
| ppc64le*) |
| link_with_cc=gcc |
| setup_gnu_toolchain |
| # Do not enable vsx by default. |
| # https://bugs.chromium.org/p/webm/issues/detail?id=1522 |
| enabled vsx || RTCD_OPTIONS="${RTCD_OPTIONS}--disable-vsx " |
| if [ -n "${tune_cpu}" ]; then |
| case ${tune_cpu} in |
| power?) |
| tune_cflags="-mcpu=" |
| ;; |
| esac |
| fi |
| ;; |
| x86*) |
| case ${tgt_os} in |
| android) |
| soft_enable realtime_only |
| ;; |
| win*) |
| enabled gcc && add_cflags -fno-common |
| ;; |
| solaris*) |
| CC=${CC:-${CROSS}gcc} |
| CXX=${CXX:-${CROSS}g++} |
| LD=${LD:-${CROSS}gcc} |
| CROSS=${CROSS-g} |
| ;; |
| os2) |
| disable_feature pic |
| AS=${AS:-nasm} |
| add_ldflags -Zhigh-mem |
| ;; |
| esac |
| |
| AS="${alt_as:-${AS:-auto}}" |
| case ${tgt_cc} in |
| icc*) |
| CC=${CC:-icc} |
| LD=${LD:-icc} |
| setup_gnu_toolchain |
| add_cflags -use-msasm # remove -use-msasm too? |
| # add -no-intel-extensions to suppress warning #10237 |
| # refer to http://software.intel.com/en-us/forums/topic/280199 |
| add_ldflags -i-static -no-intel-extensions |
| enabled x86_64 && add_cflags -ipo -static -O3 -no-prec-div |
| enabled x86_64 && AR=xiar |
| case ${tune_cpu} in |
| atom*) |
| tune_cflags="-x" |
| tune_cpu="SSE3_ATOM" |
| ;; |
| *) |
| tune_cflags="-march=" |
| ;; |
| esac |
| ;; |
| gcc*) |
| link_with_cc=gcc |
| tune_cflags="-march=" |
| setup_gnu_toolchain |
| #for 32 bit x86 builds, -O3 did not turn on this flag |
| enabled optimizations && disabled gprof && check_add_cflags -fomit-frame-pointer |
| ;; |
| vs*) |
| # When building with Microsoft Visual Studio the assembler is |
| # invoked directly. Checking at configure time is unnecessary. |
| # Skip the check by setting AS arbitrarily |
| AS=msvs |
| msvs_arch_dir=x86-msvs |
| case ${tgt_cc##vs} in |
| 14) |
| echo "${tgt_cc} does not support avx512, disabling....." |
| RTCD_OPTIONS="${RTCD_OPTIONS}--disable-avx512 " |
| soft_disable avx512 |
| ;; |
| esac |
| ;; |
| esac |
| |
| bits=32 |
| enabled x86_64 && bits=64 |
| check_cpp <<EOF && bits=x32 |
| #if !defined(__ILP32__) || !defined(__x86_64__) |
| #error "not x32" |
| #endif |
| EOF |
| case ${tgt_cc} in |
| gcc*) |
| add_cflags -m${bits} |
| add_ldflags -m${bits} |
| ;; |
| esac |
| |
| soft_enable runtime_cpu_detect |
| # We can't use 'check_cflags' until the compiler is configured and CC is |
| # populated. |
| for ext in ${ARCH_EXT_LIST_X86}; do |
| # disable higher order extensions to simplify asm dependencies |
| if [ "$disable_exts" = "yes" ]; then |
| if ! disabled $ext; then |
| RTCD_OPTIONS="${RTCD_OPTIONS}--disable-${ext} " |
| disable_feature $ext |
| fi |
| elif disabled $ext; then |
| disable_exts="yes" |
| else |
| if [ "$ext" = "avx512" ]; then |
| check_gcc_machine_options $ext avx512f avx512cd avx512bw avx512dq avx512vl |
| check_gcc_avx512_compiles |
| else |
| # use the shortened version for the flag: sse4_1 -> sse4 |
| check_gcc_machine_option ${ext%_*} $ext |
| fi |
| fi |
| done |
| |
| if enabled external_build; then |
| log_echo " skipping assembler detection" |
| else |
| case "${AS}" in |
| auto|"") |
| which nasm >/dev/null 2>&1 && AS=nasm |
| which yasm >/dev/null 2>&1 && AS=yasm |
| if [ "${AS}" = nasm ] ; then |
| # Apple ships version 0.98 of nasm through at least Xcode 6. Revisit |
| # this check if they start shipping a compatible version. |
| apple=`nasm -v | grep "Apple"` |
| [ -n "${apple}" ] \ |
| && echo "Unsupported version of nasm: ${apple}" \ |
| && AS="" |
| fi |
| [ "${AS}" = auto ] || [ -z "${AS}" ] \ |
| && die "Neither yasm nor nasm have been found." \ |
| "See the prerequisites section in the README for more info." |
| ;; |
| esac |
| log_echo " using $AS" |
| fi |
| AS_SFX=.asm |
| case ${tgt_os} in |
| win32) |
| add_asflags -f win32 |
| enabled debug && add_asflags -g cv8 |
| EXE_SFX=.exe |
| ;; |
| win64) |
| add_asflags -f win64 |
| enabled debug && add_asflags -g cv8 |
| EXE_SFX=.exe |
| ;; |
| linux*|solaris*|android*) |
| add_asflags -f elf${bits} |
| enabled debug && [ "${AS}" = yasm ] && add_asflags -g dwarf2 |
| enabled debug && [ "${AS}" = nasm ] && add_asflags -g |
| [ "${AS##*/}" = nasm ] && check_asm_align |
| ;; |
| darwin*) |
| add_asflags -f macho${bits} |
| enabled x86 && darwin_arch="-arch i386" || darwin_arch="-arch x86_64" |
| add_cflags ${darwin_arch} |
| add_ldflags ${darwin_arch} |
| # -mdynamic-no-pic is still a bit of voodoo -- it was required at |
| # one time, but does not seem to be now, and it breaks some of the |
| # code that still relies on inline assembly. |
| # enabled icc && ! enabled pic && add_cflags -fno-pic -mdynamic-no-pic |
| enabled icc && ! enabled pic && add_cflags -fno-pic |
| ;; |
| iphonesimulator) |
| add_asflags -f macho${bits} |
| enabled x86 && sim_arch="-arch i386" || sim_arch="-arch x86_64" |
| add_cflags ${sim_arch} |
| add_ldflags ${sim_arch} |
| |
| if [ "$(disabled external_build)" ] && |
| [ "$(show_darwin_sdk_major_version iphonesimulator)" -gt 8 ]; then |
| # yasm v1.3.0 doesn't know what -fembed-bitcode means, so turning it |
| # on is pointless (unless building a C-only lib). Warn the user, but |
| # do nothing here. |
| log "Warning: Bitcode embed disabled for simulator targets." |
| fi |
| ;; |
| os2) |
| add_asflags -f aout |
| enabled debug && add_asflags -g |
| EXE_SFX=.exe |
| ;; |
| *) |
| log "Warning: Unknown os $tgt_os while setting up $AS flags" |
| ;; |
| esac |
| ;; |
| *-gcc|generic-gnu) |
| link_with_cc=gcc |
| enable_feature gcc |
| setup_gnu_toolchain |
| ;; |
| esac |
| |
| # Try to enable CPU specific tuning |
| if [ -n "${tune_cpu}" ]; then |
| if [ -n "${tune_cflags}" ]; then |
| check_add_cflags ${tune_cflags}${tune_cpu} || \ |
| die "Requested CPU '${tune_cpu}' not supported by compiler" |
| fi |
| if [ -n "${tune_asflags}" ]; then |
| check_add_asflags ${tune_asflags}${tune_cpu} || \ |
| die "Requested CPU '${tune_cpu}' not supported by assembler" |
| fi |
| if [ -z "${tune_cflags}${tune_asflags}" ]; then |
| log_echo "Warning: CPU tuning not supported by this toolchain" |
| fi |
| fi |
| |
| if enabled debug; then |
| check_add_cflags -g && check_add_ldflags -g |
| else |
| check_add_cflags -DNDEBUG |
| fi |
| |
| enabled gprof && check_add_cflags -pg && check_add_ldflags -pg |
| enabled gcov && |
| check_add_cflags -fprofile-arcs -ftest-coverage && |
| check_add_ldflags -fprofile-arcs -ftest-coverage |
| |
| if enabled optimizations; then |
| if enabled rvct; then |
| enabled small && check_add_cflags -Ospace || check_add_cflags -Otime |
| else |
| enabled small && check_add_cflags -O2 || check_add_cflags -O3 |
| fi |
| fi |
| |
| # Position Independent Code (PIC) support, for building relocatable |
| # shared objects |
| enabled gcc && enabled pic && check_add_cflags -fPIC |
| |
| # Work around longjmp interception on glibc >= 2.11, to improve binary |
| # compatibility. See http://code.google.com/p/webm/issues/detail?id=166 |
| enabled linux && check_add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0 |
| |
| # Check for strip utility variant |
| ${STRIP} -V 2>/dev/null | grep GNU >/dev/null && enable_feature gnu_strip |
| |
| # Try to determine target endianness |
| check_cc <<EOF |
| unsigned int e = 'O'<<24 | '2'<<16 | 'B'<<8 | 'E'; |
| EOF |
| [ -f "${TMP_O}" ] && od -A n -t x1 "${TMP_O}" | tr -d '\n' | |
| grep '4f *32 *42 *45' >/dev/null 2>&1 && enable_feature big_endian |
| |
| # Try to find which inline keywords are supported |
| check_cc <<EOF && INLINE="inline" |
| static inline function() {} |
| EOF |
| |
| # Almost every platform uses pthreads. |
| if enabled multithread; then |
| case ${toolchain} in |
| *-win*-vs*) |
| ;; |
| *-android-gcc) |
| # bionic includes basic pthread functionality, obviating -lpthread. |
| ;; |
| *) |
| check_header pthread.h && check_lib -lpthread <<EOF && add_extralibs -lpthread || disable_feature pthread_h |
| #include <pthread.h> |
| #include <stddef.h> |
| int main(void) { return pthread_create(NULL, NULL, NULL, NULL); } |
| EOF |
| ;; |
| esac |
| fi |
| |
| # only for MIPS platforms |
| case ${toolchain} in |
| mips*) |
| if enabled big_endian; then |
| if enabled dspr2; then |
| echo "dspr2 optimizations are available only for little endian platforms" |
| disable_feature dspr2 |
| fi |
| if enabled msa; then |
| echo "msa optimizations are available only for little endian platforms" |
| disable_feature msa |
| fi |
| if enabled mmi; then |
| echo "mmi optimizations are available only for little endian platforms" |
| disable_feature mmi |
| fi |
| fi |
| ;; |
| esac |
| |
| # glibc needs these |
| if enabled linux; then |
| add_cflags -D_LARGEFILE_SOURCE |
| add_cflags -D_FILE_OFFSET_BITS=64 |
| fi |
| } |
| |
| process_toolchain() { |
| process_common_toolchain |
| } |
| |
| print_config_mk() { |
| saved_prefix="${prefix}" |
| prefix=$1 |
| makefile=$2 |
| shift 2 |
| for cfg; do |
| if enabled $cfg; then |
| upname="`toupper $cfg`" |
| echo "${prefix}_${upname}=yes" >> $makefile |
| fi |
| done |
| prefix="${saved_prefix}" |
| } |
| |
| print_config_h() { |
| saved_prefix="${prefix}" |
| prefix=$1 |
| header=$2 |
| shift 2 |
| for cfg; do |
| upname="`toupper $cfg`" |
| if enabled $cfg; then |
| echo "#define ${prefix}_${upname} 1" >> $header |
| else |
| echo "#define ${prefix}_${upname} 0" >> $header |
| fi |
| done |
| prefix="${saved_prefix}" |
| } |
| |
| print_config_vars_h() { |
| header=$1 |
| shift |
| while [ $# -gt 0 ]; do |
| upname="`toupper $1`" |
| echo "#define ${upname} $2" >> $header |
| shift 2 |
| done |
| } |
| |
| print_webm_license() { |
| saved_prefix="${prefix}" |
| destination=$1 |
| prefix="$2" |
| suffix="$3" |
| shift 3 |
| cat <<EOF > ${destination} |
| ${prefix} Copyright (c) 2011 The WebM project authors. All Rights Reserved.${suffix} |
| ${prefix} ${suffix} |
| ${prefix} Use of this source code is governed by a BSD-style license${suffix} |
| ${prefix} that can be found in the LICENSE file in the root of the source${suffix} |
| ${prefix} tree. An additional intellectual property rights grant can be found${suffix} |
| ${prefix} in the file PATENTS. All contributing project authors may${suffix} |
| ${prefix} be found in the AUTHORS file in the root of the source tree.${suffix} |
| EOF |
| prefix="${saved_prefix}" |
| } |
| |
| process_targets() { |
| true; |
| } |
| |
| process_detect() { |
| true; |
| } |
| |
| enable_feature logging |
| logfile="config.log" |
| self=$0 |
| process() { |
| cmdline_args="$@" |
| process_cmdline "$@" |
| if enabled child; then |
| echo "# ${self} $@" >> ${logfile} |
| else |
| echo "# ${self} $@" > ${logfile} |
| fi |
| post_process_common_cmdline |
| post_process_cmdline |
| process_toolchain |
| process_detect |
| process_targets |
| |
| OOT_INSTALLS="${OOT_INSTALLS}" |
| if enabled source_path_used; then |
| # Prepare the PWD for building. |
| for f in ${OOT_INSTALLS}; do |
| install -D "${source_path}/$f" "$f" |
| done |
| fi |
| cp "${source_path}/build/make/Makefile" . |
| |
| clean_temp_files |
| true |
| } |
