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#
# Copyright (C) 2011 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# This file contains various shell function definitions that can be
# used to either build a static and shared libraries from sources, or
# generate a Makefile to do it in parallel.
#
_BUILD_TAB=$(echo " " | tr ' ' '\t')
builder_command ()
{
if [ -z "$_BUILD_MK" ]; then
if [ "$VERBOSE2" = "yes" ]; then
echo "$@"
fi
"$@"
else
echo "${_BUILD_TAB}${_BUILD_HIDE}$@" >> $_BUILD_MK
fi
}
builder_log ()
{
if [ "$_BUILD_MK" ]; then
echo "${_BUILD_TAB}${_BUILD_HIDE}echo $@" >> $_BUILD_MK
else
log "$@"
fi
}
# $1: Build directory
# $2: Optional Makefile name
builder_begin ()
{
_BUILD_DIR_NEW=
_BUILD_DIR=$1
if [ ! -d "$_BUILD_DIR" ]; then
mkdir -p "$_BUILD_DIR"
fail_panic "Can't create build directory: $_BUILD_DIR"
_BUILD_DIR_NEW=true
else
rm -rf "$_BUILD_DIR/*"
fail_panic "Can't cleanup build directory: $_BUILD_DIR"
fi
_BUILD_TARGETS=
_BUILD_PREFIX=
_BUILD_MK=$2
if [ -n "$_BUILD_MK" ]; then
log "Creating temporary build Makefile: $_BUILD_MK"
rm -f $_BUILD_MK &&
echo "# Auto-generated by $0 - do not edit!" > $_BUILD_MK
echo ".PHONY: all" >> $_BUILD_MK
echo "all:" >> $_BUILD_MK
fi
# HIDE is used to hide the Makefile output, unless --verbose --verbose
# is used.
if [ "$VERBOSE2" = "yes" ]; then
_BUILD_HIDE=""
else
_BUILD_HIDE=@
fi
builder_begin_module
}
# $1: Variable name
# out: Variable value
_builder_varval ()
{
eval echo "\$$1"
}
_builder_varadd ()
{
local _varname="$1"
local _varval="$(_builder_varval $_varname)"
shift
if [ -z "$_varval" ]; then
eval $_varname=\"$@\"
else
eval $_varname=\$$_varname\" $@\"
fi
}
builder_set_prefix ()
{
_BUILD_PREFIX="$@"
}
builder_begin_module ()
{
_BUILD_CC=
_BUILD_CXX=
_BUILD_AR=
_BUILD_C_INCLUDES=
_BUILD_CFLAGS=
_BUILD_CXXFLAGS=
_BUILD_LDFLAGS_BEGIN_SO=
_BUILD_LDFLAGS_END_SO=
_BUILD_LDFLAGS_BEGIN_EXE=
_BUILD_LDFLAGS_END_EXE=
_BUILD_LDFLAGS=
_BUILD_BINPREFIX=
_BUILD_DSTDIR=
_BUILD_SRCDIR=.
_BUILD_OBJECTS=
_BUILD_STATIC_LIBRARIES=
_BUILD_SHARED_LIBRARIES=
}
builder_set_binprefix ()
{
_BUILD_BINPREFIX=$1
_BUILD_CC=${1}gcc
_BUILD_CXX=${1}g++
_BUILD_AR=${1}ar
}
builder_set_builddir ()
{
_BUILD_DIR=$1
}
builder_set_srcdir ()
{
_BUILD_SRCDIR=$1
}
builder_set_dstdir ()
{
_BUILD_DSTDIR=$1
}
builder_ldflags ()
{
_builder_varadd _BUILD_LDFLAGS "$@"
}
builder_ldflags_exe ()
{
_builder_varadd _BUILD_LDFLAGS_EXE "$@"
}
builder_cflags ()
{
_builder_varadd _BUILD_CFLAGS "$@"
}
builder_cxxflags ()
{
_builder_varadd _BUILD_CXXFLAGS "$@"
}
builder_c_includes ()
{
_builder_varadd _BUILD_C_INCLUDES "$@"
}
# $1: optional var to hold the original cflags before reset
builder_reset_cflags ()
{
local _varname="$1"
if [ -n "$_varname" ] ; then
eval $_varname=\"$_BUILD_CFLAGS\"
fi
_BUILD_CFLAGS=
}
# $1: optional var to hold the original cxxflags before reset
builder_reset_cxxflags ()
{
local _varname="$1"
if [ -n "$_varname" ] ; then
eval $_varname=\"$_BUILD_CXXFLAGS\"
fi
_BUILD_CXXFLAGS=
}
# $1: optional var to hold the original c_includes before reset
builder_reset_c_includes ()
{
local _varname="$1"
if [ -n "$_varname" ] ; then
eval $_varname=\"$_BUILD_C_INCLUDES\"
fi
_BUILD_C_INCLUDES=
}
builder_link_with ()
{
local LIB
for LIB; do
case $LIB in
*.a)
_builder_varadd _BUILD_STATIC_LIBRARIES $LIB
;;
*.so)
_builder_varadd _BUILD_SHARED_LIBRARIES $LIB
;;
*)
echo "ERROR: Unknown link library extension: $LIB"
exit 1
esac
done
}
builder_sources ()
{
local src srcfull obj cc cflags text
if [ -z "$_BUILD_DIR" ]; then
panic "Build directory not set!"
fi
if [ -z "$_BUILD_CC" ]; then
_BUILD_CC=${CC:-gcc}
fi
if [ -z "$_BUILD_CXX" ]; then
_BUILD_CXX=${CXX:-g++}
fi
for src in "$@"; do
srcfull=$_BUILD_SRCDIR/$src
if [ ! -f "$srcfull" ]; then
echo "ERROR: Missing source file: $srcfull"
exit 1
fi
obj=$(basename "$src")
cflags="$_BUILD_CFLAGS"
for inc in $_BUILD_C_INCLUDES; do
cflags=$cflags" -I$inc"
done
cflags=$cflags" -I$_BUILD_SRCDIR"
case $obj in
*.c)
obj=${obj%%.c}
text="C"
cc=$_BUILD_CC
;;
*.cpp)
obj=${obj%%.cpp}
text="C++"
cc=$_BUILD_CXX
cflags="$cflags $_BUILD_CXXFLAGS"
;;
*.cc)
obj=${obj%%.cc}
text="C++"
cc=$_BUILD_CXX
cflags="$cflags $_BUILD_CXXFLAGS"
;;
*)
echo "Unknown source file extension: $obj"
exit 1
;;
esac
# Ensure we have unwind tables in the generated machine code
# This is useful to get good stack traces
cflags=$cflags" -funwind-tables"
obj=$_BUILD_DIR/$obj.o
if [ "$_BUILD_MK" ]; then
echo "$obj: $srcfull" >> $_BUILD_MK
fi
builder_log "${_BUILD_PREFIX}$text: $src"
builder_command $NDK_CCACHE $cc -c -o "$obj" "$srcfull" $cflags
fail_panic "Could not compile ${_BUILD_PREFIX}$src"
_BUILD_OBJECTS=$_BUILD_OBJECTS" $obj"
done
}
builder_static_library ()
{
local lib libname
libname=$1
if [ -z "$_BUILD_DSTDIR" ]; then
panic "Destination directory not set"
fi
lib=$_BUILD_DSTDIR/$libname
lib=${lib%%.a}.a
if [ "$_BUILD_MK" ]; then
_BUILD_TARGETS=$_BUILD_TARGETS" $lib"
echo "$lib: $_BUILD_OBJECTS" >> $_BUILD_MK
fi
builder_log "${_BUILD_PREFIX}Archive: $libname"
builder_command ${_BUILD_BINPREFIX}ar crs "$lib" "$_BUILD_OBJECTS"
fail_panic "Could not archive ${_BUILD_PREFIX}$libname objects!"
}
builder_host_static_library ()
{
local lib libname
libname=$1
if [ -z "$_BUILD_DSTDIR" ]; then
panic "Destination directory not set"
fi
lib=$_BUILD_DSTDIR/$libname
lib=${lib%%.a}.a
if [ "$_BUILD_MK" ]; then
_BUILD_TARGETS=$_BUILD_TARGETS" $lib"
echo "$lib: $_BUILD_OBJECTS" >> $_BUILD_MK
fi
if [ -z "$BUILD_AR" ]; then
_BUILD_AR=${AR:-ar}
fi
builder_log "${_BUILD_PREFIX}Archive: $libname"
builder_command ${_BUILD_AR} crs "$lib" "$_BUILD_OBJECTS"
fail_panic "Could not archive ${_BUILD_PREFIX}$libname objects!"
}
builder_shared_library ()
{
local lib libname
libname=$1
lib=$_BUILD_DSTDIR/$libname
lib=${lib%%.so}.so
if [ "$_BUILD_MK" ]; then
_BUILD_TARGETS=$_BUILD_TARGETS" $lib"
echo "$lib: $_BUILD_OBJECTS" >> $_BUILD_MK
fi
builder_log "${_BUILD_PREFIX}SharedLibrary: $libname"
# Important: -lgcc must appear after objects and static libraries,
# but before shared libraries for Android. It doesn't hurt
# for other platforms.
builder_command ${_BUILD_BINPREFIX}g++ \
-Wl,-soname,$(basename $lib) \
-Wl,-shared,-Bsymbolic \
$_BUILD_LDFLAGS_BEGIN_SO \
$_BUILD_OBJECTS \
$_BUILD_STATIC_LIBRARIES \
-lgcc \
$_BUILD_SHARED_LIBRARIES \
-lc -lm \
$_BUILD_LDFLAGS \
$_BUILD_LDFLAGS_END_SO \
-o $lib
fail_panic "Could not create ${_BUILD_PREFIX}shared library $libname"
}
builder_host_shared_library ()
{
local lib libname
libname=$1
lib=$_BUILD_DSTDIR/$libname
lib=${lib%%.so}.so
if [ "$_BUILD_MK" ]; then
_BUILD_TARGETS=$_BUILD_TARGETS" $lib"
echo "$lib: $_BUILD_OBJECTS" >> $_BUILD_MK
fi
builder_log "${_BUILD_PREFIX}SharedLibrary: $libname"
if [ -z "$_BUILD_CXX" ]; then
_BUILD_CXX=${CXX:-g++}
fi
# Important: -lgcc must appear after objects and static libraries,
# but before shared libraries for Android. It doesn't hurt
# for other platforms.
builder_command ${_BUILD_CXX} \
-shared -s \
$_BUILD_OBJECTS \
$_BUILD_STATIC_LIBRARIES \
$_BUILD_SHARED_LIBRARIES \
$_BUILD_LDFLAGS \
-o $lib
fail_panic "Could not create ${_BUILD_PREFIX}shared library $libname"
}
builder_host_executable ()
{
local exe exename
exename=$1
exe=$_BUILD_DSTDIR/$exename$HOST_EXE
if [ "$_BUILD_MK" ]; then
_BUILD_TARGETS=$_BUILD_TARGETS" $exe"
echo "$exe: $_BUILD_OBJECTS" >> $_BUILD_MK
fi
builder_log "${_BUILD_PREFIX}Executable: $exename$HOST_EXE"
if [ -z "$_BUILD_CXX" ]; then
_BUILD_CXX=${CXX:-g++}
fi
# Important: -lgcc must appear after objects and static libraries,
# but before shared libraries for Android. It doesn't hurt
# for other platforms.
builder_command ${_BUILD_CXX} \
-s \
$_BUILD_OBJECTS \
$_BUILD_STATIC_LIBRARIES \
$_BUILD_SHARED_LIBRARIES \
$_BUILD_LDFLAGS \
-o $exe
fail_panic "Could not create ${_BUILD_PREFIX}executable $libname"
}
builder_end ()
{
if [ "$_BUILD_MK" ]; then
echo "all: $_BUILD_TARGETS" >> $_BUILD_MK
run make -j$NUM_JOBS -f $_BUILD_MK
fail_panic "Could not build project!"
fi
if [ "$_BUILD_DIR_NEW" ]; then
log2 "Cleaning up build directory: $_BUILD_DIR"
rm -rf "$_BUILD_DIR"
_BUILD_DIR_NEW=
fi
}
# Same as builder_begin, but to target Android with a specific ABI
# $1: ABI name (e.g. armeabi)
# $2: Build directory
# $3: Optional Makefile name
builder_begin_android ()
{
local ARCH ABI PLATFORM BUILDDIR DSTDIR SYSROOT CFLAGS
local CRTBEGIN_SO_O CRTEND_SO_O CRTBEGIN_EXE_SO CRTEND_SO_O
if [ -z "$NDK_DIR" ]; then
panic "NDK_DIR is not defined!"
elif [ ! -d "$NDK_DIR/platforms" ]; then
panic "Missing directory: $NDK_DIR/platforms"
fi
ABI=$1
ARCH=$(convert_abi_to_arch $ABI)
PLATFORM=${2##android-}
SYSROOT=$NDK_DIR/platforms/android-$PLATFORM/arch-$ARCH
BINPREFIX=$NDK_DIR/$(get_default_toolchain_binprefix_for_arch $ARCH)
SYSROOT=$NDK_DIR/$(get_default_platform_sysroot_for_arch $ARCH)
CRTBEGIN_EXE_O=$SYSROOT/usr/lib/crtbegin_dynamic.o
CRTEND_EXE_O=$SYSROOT/usr/lib/crtend_android.o
CRTBEGIN_SO_O=$SYSROOT/usr/lib/crtbegin_so.o
CRTEND_SO_O=$SYSROOT/usr/lib/crtend_so.o
if [ ! -f "$CRTBEGIN_SO_O" ]; then
CRTBEGIN_SO_O=$CRTBEGIN_EXE_O
fi
if [ ! -f "$CRTEND_SO_O" ]; then
CRTEND_SO_O=$CRTEND_EXE_O
fi
builder_begin "$2" "$3"
builder_set_prefix "$ABI "
builder_set_binprefix "$BINPREFIX"
builder_cflags "--sysroot=$SYSROOT"
builder_cxxflags "--sysroot=$SYSROOT"
_BUILD_LDFLAGS_BEGIN_SO="--sysroot=$SYSROOT -nostdlib $CRTBEGIN_SO_O"
_BUILD_LDFLAGS_BEGIN_EXE="--sysroot=$SYSROOT -nostdlib $CRTBEGIN_EXE_O"
_BUILD_LDFLAGS_END_SO="$CRTEND_SO_O"
_BUILD_LDFLAGS_END_EXE="$CRTEND_EXE_O"
case $ABI in
armeabi)
builder_cflags "-mthumb"
;;
armeabi-v7a)
builder_cflags "-mthumb -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16"
builder_ldflags "-march=armv7-a -Wl,--fix-cortex-a8"
;;
esac
}
# $1: Build directory
# $2: Optional Makefile name
builder_begin_host ()
{
prepare_host_build
builder_begin "$1" "$2"
builder_set_prefix "$HOST_TAG "
}