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cc/gcc: build bare-metal gcc statically

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- add a new parameter to do_cc_core: build_statically=[yes|no]
- pass build_statically=yes in core_pass_2 when doing bare_metal
- fix handling the static / static libstdc++ / static complibs stuff
- add a commment to keep both blocks (in core and final) in sync

Signed-off-by: "Bryan Hundven" <bryanhundven@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
This commit is contained in:
Bryan Hundven" 2010-12-09 18:55:59 +01:00 committed by Bryan Hundven
parent 118a6a5f98
commit 1ad4399072
1 changed files with 47 additions and 13 deletions
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48
scripts/build/cc/gcc.sh
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@ -63,12 +63,19 @@ do_cc_core_pass_2() {
# In any other case, build the static core gcc and, if using gcc-4.3+,
# also build the target libgcc.
case "${CT_BARE_METAL},${CT_CANADIAN},${CT_THREADS}" in
y,*,*) do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes;;
y,*,*)
if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then
do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes build_staticlinked=yes
else
do_cc_core mode=baremetal build_libgcc=yes build_libstdcxx=yes
fi
;;
,y,*) ;;
,,nptl)
do_cc_core mode=shared build_libgcc=yes
;;
,,win32) do_cc_core mode=static build_libgcc=yes
,,win32)
do_cc_core mode=static build_libgcc=yes
;;
*) if [ "${CT_CC_GCC_4_3_or_later}" = "y" ]; then
do_cc_core mode=static build_libgcc=yes
@ -86,16 +93,18 @@ do_cc_core_pass_2() {
# - we're building static, shared or bare metal: mode=[static|shared|baremetal]
# - we need to build libgcc or not : build_libgcc=[yes|no] (default: no)
# - we need to build libstdc++ or not : build_libstdcxx=[yes|no] (default: no)
# Usage: do_cc_core_static mode=[static|shared|baremetal] build_libgcc=[yes|no]
# - we need to build statically linked or not : build_staticlinked=[yes|no] (default: no)
# Usage: do_cc_core mode=[static|shared|baremetal] build_libgcc=[yes|no] build_staticlinked=[yes|no]
do_cc_core() {
local mode
local build_libgcc=no
local build_libstdcxx=no
local build_staticlinked=no
local core_prefix_dir
local lang_opt
local tmp
local -a extra_config
local core_LDFLAGS
local -a core_LDFLAGS
local -a core_targets
while [ $# -ne 0 ]; do
@ -158,13 +167,35 @@ do_cc_core() {
extra_config+=("--disable-__cxa_atexit")
fi
# *** WARNING ! ***
# Keep this full if-else-if-elif-fi-fi block in sync
# with the same block in do_cc, below.
if [ "${build_staticlinked}" = "yes" ]; then
core_LDFLAGS+=("-static")
extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++ -lm")
# Companion libraries are build static (eg !shared), so
# the libstdc++ is not pulled automatically, although it
# is needed. Shoe-horn it in our LDFLAGS
# Ditto libm on some Fedora boxen
final_LDFLAGS+=("-lstdc++")
final_LDFLAGS+=("-lm")
else
if [ "${CT_CC_STATIC_LIBSTDCXX}" = "y" ]; then
# this is from CodeSourcery arm-2010q1-202-arm-none-linux-gnueabi.src.tar.bz2
# build script
# FIXME: if the host gcc is gcc-4.5 then presumably we could use -static-libstdc++,
# see http://gcc.gnu.org/ml/gcc-patches/2009-06/msg01635.html
extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm")
elif [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
# When companion libraries are build static (eg !shared),
# the libstdc++ is not pulled automatically, although it
# is needed. Shoe-horn it in our LDFLAGS
# Ditto libm on some Fedora boxen
if [ "${CT_COMPLIBS_SHARED}" != "y" ]; then
core_LDFLAGS='-lstdc++ -lm'
core_LDFLAGS+=("-lstdc++")
core_LDFLAGS+=("-lm")
fi
fi
if [ "${CT_CC_GCC_USE_GMP_MPFR}" = "y" ]; then
extra_config+=("--with-gmp=${CT_COMPLIBS_DIR}")
extra_config+=("--with-mpfr=${CT_COMPLIBS_DIR}")
@ -202,7 +233,7 @@ do_cc_core() {
# Use --with-local-prefix so older gccs don't look in /usr/local (http://gcc.gnu.org/PR10532)
CC_FOR_BUILD="${CT_BUILD}-gcc" \
CFLAGS="${CT_CFLAGS_FOR_HOST}" \
LDFLAGS="${core_LDFLAGS}" \
LDFLAGS="${core_LDFLAGS[*]}" \
CT_DoExecLog CFG \
"${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/configure" \
--build=${CT_BUILD} \
@ -373,6 +404,9 @@ do_cc() {
extra_config+=(--disable-libssp)
fi
# *** WARNING ! ***
# Keep this full if-else-if-elif-fi-fi block in sync
# with the same block in do_cc_core, above.
if [ "${CT_STATIC_TOOLCHAIN}" = "y" ]; then
final_LDFLAGS+=("-static")
extra_config+=("--with-host-libstdcxx=-static-libgcc -Wl,-Bstatic,-lstdc++ -lm")