#!/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} ${extralibs}
}
check_header(){
log check_header "$@"
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 "$@"
case "$CC" in
*gcc*|*clang)
check_cc -Werror "$@" <<EOF
int x;
EOF
;;
*)
check_cc "$@" <<EOF
int x;
EOF
;;
esac
}
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
}
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}
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 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 ${INLINE}
EOF
print_config_h ARCH "${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} "$1"
}
process_common_cmdline() {
for opt in "$@"; 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="${optval}"
;;
--sdk-path=*)
[ -d "${optval}" ] || die "Not a directory: ${optval}"
sdk_path="${optval}"
;;
--libc|--as|--prefix|--libdir|--sdk-path)
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 "$gcctarget" in
aarch64*)
tgt_isa=arm64
;;
armv7*-hardfloat* | armv7*-gnueabihf | arm-*-gnueabihf)
tgt_isa=armv7
float_abi=hard
;;
armv7*)
tgt_isa=armv7
float_abi=softfp
;;
*x86_64*|*amd64*)
tgt_isa=x86_64
;;
*i[3456]86*)
tgt_isa=x86
;;
*sparc*)
tgt_isa=sparc
;;
esac
# detect tgt_os
case "$gcctarget" in
*darwin10*)
tgt_isa=x86_64
tgt_os=darwin10
;;
*darwin11*)
tgt_isa=x86_64
tgt_os=darwin11
;;
*darwin12*)
tgt_isa=x86_64
tgt_os=darwin12
;;
*darwin13*)
tgt_isa=x86_64
tgt_os=darwin13
;;
*darwin14*)
tgt_isa=x86_64
tgt_os=darwin14
;;
*darwin15*)
tgt_isa=x86_64
tgt_os=darwin15
;;
x86_64*mingw32*)
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
;;
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="6.0"
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 ${toolchain} in
*-darwin8-*)
add_cflags "-mmacosx-version-min=10.4"
add_ldflags "-mmacosx-version-min=10.4"
;;
*-darwin9-*)
add_cflags "-mmacosx-version-min=10.5"
add_ldflags "-mmacosx-version-min=10.5"
;;
*-darwin10-*)
add_cflags "-mmacosx-version-min=10.6"
add_ldflags "-mmacosx-version-min=10.6"
;;
*-darwin11-*)
add_cflags "-mmacosx-version-min=10.7"
add_ldflags "-mmacosx-version-min=10.7"
;;
*-darwin12-*)
add_cflags "-mmacosx-version-min=10.8"
add_ldflags "-mmacosx-version-min=10.8"
;;
*-darwin13-*)
add_cflags "-mmacosx-version-min=10.9"
add_ldflags "-mmacosx-version-min=10.9"
;;
*-darwin14-*)
add_cflags "-mmacosx-version-min=10.10"
add_ldflags "-mmacosx-version-min=10.10"
;;
*-darwin15-*)
add_cflags "-mmacosx-version-min=10.11"
add_ldflags "-mmacosx-version-min=10.11"
;;
*-iphonesimulator-*)
add_cflags "-miphoneos-version-min=${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=${arch_int%%te}
check_add_asflags --defsym ARCHITECTURE=${arch_int}
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"
if enabled thumb; then
asm_conversion_cmd="$asm_conversion_cmd -thumb"
check_add_cflags -mthumb
check_add_asflags -mthumb -mimplicit-it=always
fi
;;
vs*)
asm_conversion_cmd="${source_path}/build/make/ads2armasm_ms.pl"
AS_SFX=.s
msvs_arch_dir=arm-msvs
disable_feature multithread
disable_feature unit_tests
vs_version=${tgt_cc##vs}
if [ $vs_version -ge 12 ]; then
# MSVC 2013 doesn't allow doing plain .exe projects for ARM,
# only "AppContainerApplication" which requires an AppxManifest.
# Therefore disable the examples, just build the library.
disable_feature examples
fi
;;
rvct)
CC=armcc
AR=armar
AS=armasm
LD="${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}
check_add_asflags --pd "\"ARCHITECTURE SETA ${arch_int}\""
enabled debug && add_asflags -g
add_cflags --gnu
add_cflags --enum_is_int
add_cflags --wchar32
;;
esac
case ${tgt_os} in
none*)
disable_feature multithread
disable_feature os_support
;;
android*)
if [ -n "${sdk_path}" ]; then
SDK_PATH=${sdk_path}
COMPILER_LOCATION=`find "${SDK_PATH}" \
-name "arm-linux-androideabi-gcc*" -print -quit`
TOOLCHAIN_PATH=${COMPILER_LOCATION%/*}/arm-linux-androideabi-
CC=${TOOLCHAIN_PATH}gcc
CXX=${TOOLCHAIN_PATH}g++
AR=${TOOLCHAIN_PATH}ar
LD=${TOOLCHAIN_PATH}gcc
AS=${TOOLCHAIN_PATH}as
STRIP=${TOOLCHAIN_PATH}strip
NM=${TOOLCHAIN_PATH}nm
if [ -z "${alt_libc}" ]; then
alt_libc=`find "${SDK_PATH}" -name arch-arm -print | \
awk '{n = split($0,a,"/"); \
split(a[n-1],b,"-"); \
print $0 " " b[2]}' | \
sort -g -k 2 | \
awk '{ print $1 }' | tail -1`
fi
if [ -d "${alt_libc}" ]; then
add_cflags "--sysroot=${alt_libc}"
add_ldflags "--sysroot=${alt_libc}"
fi
# linker flag that routes around a CPU bug in some
# Cortex-A8 implementations (NDK Dev Guide)
add_ldflags "-Wl,--fix-cortex-a8"
enable_feature pic
soft_enable realtime_only
if [ ${tgt_isa} = "armv7" ]; then
soft_enable runtime_cpu_detect
fi
if enabled runtime_cpu_detect; then
add_cflags "-I${SDK_PATH}/sources/android/cpufeatures"
fi
else
echo "Assuming standalone build with NDK toolchain."
echo "See build/make/Android.mk for details."
check_add_ldflags -static
soft_enable unit_tests
fi
;;
darwin*)
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 [ "$(show_darwin_sdk_major_version iphoneos)" -gt 8 ]; then
check_add_cflags -fembed-bitcode
check_add_asflags -fembed-bitcode
check_add_ldflags -fembed-bitcode
fi
;;
linux*)
enable_feature linux
if enabled rvct; then
# Check if we have CodeSourcery GCC in PATH. Needed for
# libraries
which arm-none-linux-gnueabi-gcc 2>&- || \
die "Couldn't find CodeSourcery GCC from PATH"
# Use armcc as a linker to enable translation of
# some gcc specific options such as -lm and -lpthread.
LD="armcc --translate_gcc"
# create configuration file (uses path to CodeSourcery GCC)
armcc --arm_linux_configure --arm_linux_config_file=arm_linux.cfg
add_cflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg
add_asflags --no_hide_all --apcs=/interwork
add_ldflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg
enabled pic && add_cflags --apcs=/fpic
enabled pic && add_asflags --apcs=/fpic
enabled shared && add_cflags --shared
fi
;;
esac
;;
mips*)
link_with_cc=gcc
setup_gnu_toolchain
tune_cflags="-mtune="
if enabled dspr2; then
check_add_cflags -mips32r2 -mdspr2
fi
if enabled runtime_cpu_detect; then
disable_feature runtime_cpu_detect
fi
if [ -n "${tune_cpu}" ]; then
case ${tune_cpu} in
p5600)
check_add_cflags -mips32r5 -mload-store-pairs
check_add_cflags -msched-weight -mhard-float -mfp64
check_add_asflags -mips32r5 -mhard-float -mfp64
check_add_ldflags -mfp64
;;
i6400|p6600)
check_add_cflags -mips64r6 -mabi=64 -msched-weight
check_add_cflags -mload-store-pairs -mhard-float -mfp64
check_add_asflags -mips64r6 -mabi=64 -mhard-float -mfp64
check_add_ldflags -mips64r6 -mabi=64 -mfp64
;;
esac
if enabled msa; then
add_cflags -mmsa
add_asflags -mmsa
add_ldflags -mmsa
fi
fi
check_add_cflags -march=${tgt_isa}
check_add_asflags -march=${tgt_isa}
check_add_asflags -KPIC
;;
x86*)
case ${tgt_os} in
win*)
enabled gcc && add_cflags -fno-common
;;
solaris*)
CC=${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 ${tune_cpu} in
atom*)
tune_cflags="-x"
tune_cpu="SSE3_ATOM"
;;
*)
tune_cflags="-march="
;;
esac
;;
gcc*)
link_with_cc=gcc
tune_cflags="-march="
setup_gnu_toolchain
#for 32 bit x86 builds, -O3 did not turn on this flag
enabled optimizations && disabled gprof && check_add_cflags -fomit-frame-pointer
;;
vs*)
# When building with Microsoft Visual Studio the assembler is
# invoked directly. Checking at configure time is unnecessary.
# Skip the check by setting AS arbitrarily
AS=msvs
msvs_arch_dir=x86-msvs
vc_version=${tgt_cc##vs}
case $vc_version in
7|8|9|10)
echo "${tgt_cc} does not support avx/avx2, disabling....."
RTCD_OPTIONS="${RTCD_OPTIONS}--disable-avx --disable-avx2 "
soft_disable avx
soft_disable avx2
;;
esac
case $vc_version in
7|8|9)
echo "${tgt_cc} omits stdint.h, disabling webm-io..."
soft_disable webm_io
;;
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
# use the shortened version for the flag: sse4_1 -> sse4
check_gcc_machine_option ${ext%_*} $ext
fi
done
if enabled external_build; then
log_echo " skipping assembler detection"
else
case "${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##*/}" = nasm ] && add_asflags -Ox
AS_SFX=.asm
case ${tgt_os} in
win32)
add_asflags -f win32
enabled debug && add_asflags -g cv8
EXE_SFX=.exe
;;
win64)
add_asflags -f x64
enabled debug && add_asflags -g cv8
EXE_SFX=.exe
;;
linux*|solaris*|android*)
add_asflags -f elf${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 ${sim_arch}
if [ "$(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 && add_extralibs -lpthread
;;
esac
fi
# only for MIPS platforms
case ${toolchain} in
mips*)
if enabled big_endian; then
if enabled dspr2; then
echo "dspr2 optimizations are available only for little endian platforms"
disable_feature dspr2
fi
if enabled msa; then
echo "msa optimizations are available only for little endian platforms"
disable_feature msa
fi
fi
;;
esac
# glibc needs these
if enabled linux; then
add_cflags -D_LARGEFILE_SOURCE
add_cflags -D_FILE_OFFSET_BITS=64
fi
}
process_toolchain() {
process_common_toolchain
}
print_config_mk() {
saved_prefix="${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
}