crosstool-ng/scripts/build/libc/newlib.sh
Zhenqiang Chen 91eb66a629 libc/newlib: add option to optimise for size
Add an option to build with -Os instead of the default -O.

Reviewed-by: Michael Hope
Signed-off-by: Zhenqiang Chen <zhenqiang.chen@linaro.org>
2011-11-22 14:18:14 +08:00

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# This file adds functions to build the Newlib C library
# Copyright 2009 DoréDevelopment
# Licensed under the GPL v2. See COPYING in the root of this package
#
# Edited by Martin Lund <mgl@doredevelopment.dk>
#
libc_newlib_version() {
if [ -z "${CT_LIBC_NEWLIB_CVS}" ]; then
echo "${CT_LIBC_VERSION}"
else
echo "cvs${CT_LIBC_VERSION:+-${CT_LIBC_VERSION}}"
fi
}
do_libc_get() {
local libc_src
local avr32headers_src
libc_src="ftp://sources.redhat.com/pub/newlib"
avr32headers_src="http://dev.doredevelopment.dk/avr32-toolchain/sources"
if [ -z "${CT_LIBC_NEWLIB_CVS}" ]; then
CT_GetFile "newlib-${CT_LIBC_VERSION}" ${libc_src}
else
CT_GetCVS "newlib-$(libc_newlib_version)" \
":pserver:anoncvs@sources.redhat.com:/cvs/src" \
"newlib" \
"${CT_LIBC_VERSION}" \
"newlib-$(libc_newlib_version)=src"
fi
if [ "${CT_ATMEL_AVR32_HEADERS}" = "y" ]; then
CT_GetFile "avr32headers" ${avr32headers_src}
fi
}
do_libc_extract() {
CT_Extract "newlib-$(libc_newlib_version)"
CT_Patch "newlib" "$(libc_newlib_version)"
if [ "${CT_ATMEL_AVR32_HEADERS}" = "y" ]; then
CT_Extract "avr32headers"
fi
}
do_libc_check_config() {
:
}
do_libc_start_files() {
local -a newlib_opts
CT_DoStep INFO "Installing C library"
mkdir -p "${CT_BUILD_DIR}/build-libc"
cd "${CT_BUILD_DIR}/build-libc"
CT_DoLog EXTRA "Configuring C library"
if [ "${CT_LIBC_NEWLIB_IO_C99FMT}" = "y" ]; then
newlib_opts+=( "--enable-newlib-io-c99-formats" )
else
newlib_opts+=( "--disable-newlib-io-c99-formats" )
fi
if [ "${CT_LIBC_NEWLIB_IO_LL}" = "y" ]; then
newlib_opts+=( "--enable-newlib-io-long-long" )
else
newlib_opts+=( "--disable-newlib-io-long-long" )
fi
if [ "${CT_LIBC_NEWLIB_IO_FLOAT}" = "y" ]; then
newlib_opts+=( "--enable-newlib-io-float" )
if [ "${CT_LIBC_NEWLIB_IO_LDBL}" = "y" ]; then
newlib_opts+=( "--enable-newlib-io-long-double" )
else
newlib_opts+=( "--disable-newlib-io-long-double" )
fi
else
newlib_opts+=( "--disable-newlib-io-float" )
newlib_opts+=( "--disable-newlib-io-long-double" )
fi
if [ "${CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS}" = "y" ]; then
newlib_opts+=( "--disable-newlib-supplied-syscalls" )
else
newlib_opts+=( "--enable-newlib-supplied-syscalls" )
fi
[ "${CT_LIBC_NEWLIB_ENABLE_TARGET_OPTSPACE}" = "y" ] && newlib_opts+=("--enable-target-optspace")
# Note: newlib handles the build/host/target a little bit differently
# than one would expect:
# build : not used
# host : the machine building newlib
# target : the machine newlib runs on
CT_DoExecLog CFG \
CC_FOR_BUILD="${CT_BUILD}-gcc" \
CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS} -O" \
AR=${CT_TARGET}-ar \
RANLIB=${CT_TARGET}-ranlib \
"${CT_SRC_DIR}/newlib-$(libc_newlib_version)/configure" \
--host=${CT_BUILD} \
--target=${CT_TARGET} \
--prefix=${CT_PREFIX_DIR} \
"${newlib_opts[@]}" \
"${CT_LIBC_NEWLIB_EXTRA_CONFIG_ARRAY[@]}"
CT_DoLog EXTRA "Building C library"
CT_DoExecLog ALL make ${JOBSFLAGS}
CT_DoLog EXTRA "Installing C library"
CT_DoExecLog ALL make install install_root="${CT_SYSROOT_DIR}"
CT_EndStep
}
do_libc() {
:
}
do_libc_finish() {
CT_DoStep INFO "Finishing C library"
if [ "${CT_ATMEL_AVR32_HEADERS}" = "y" ]; then
CT_DoLog EXTRA "Installing Atmel's AVR32 headers"
CT_DoExecLog ALL cp -r ${CT_SRC_DIR}/avr32headers "${CT_PREFIX_DIR}/${CT_TARGET}/include/avr32"
fi
CT_EndStep
}