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Merge pull request #170 from jasmin-j/newlib_target_cflags

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Newlib specific target cflags
This commit is contained in:
Bryan Hundven 2015-09-15 08:05:49 -07:00
commit c2f3ec1def
2 changed files with 18 additions and 1 deletions
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14
config/libc/newlib.in
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@ -144,6 +144,20 @@ config LIBC_VERSION
Enter the tag you want to use.
Leave empty to use the 'head' of the repository.
config LIBC_NEWLIB_TARGET_CFLAGS
string
prompt "Target CFLAGS for newlib"
default ""
help
Used to add specific options when compiling the target libraries
(eg. -ffunction-sections -fdata-sections), which can't be defined
in global TARGET_CFLAGS, because they shall be not used for the
gcc target libraries.
Note: Both TARGET_CFLAGS and LIBC_NEWLIB_TARGET_CFLAGS are used
to compile the libraries.
Leave blank if you don't know better.
comment "Architecture specific options"
config ATMEL_AVR32_HEADERS

5
scripts/build/libc/newlib.sh
View File

@ -72,6 +72,7 @@ do_libc_start_files() {
do_libc() {
local -a newlib_opts
local cflags_for_target
CT_DoStep INFO "Installing C library"
@ -109,6 +110,8 @@ do_libc() {
[ "${CT_LIBC_NEWLIB_ENABLE_TARGET_OPTSPACE}" = "y" ] && newlib_opts+=("--enable-target-optspace")
cflags_for_target="${CT_TARGET_CFLAGS} ${CT_LIBC_NEWLIB_TARGET_CFLAGS}"
# Note: newlib handles the build/host/target a little bit differently
# than one would expect:
# build : not used
@ -116,7 +119,7 @@ do_libc() {
# target : the machine newlib runs on
CT_DoExecLog CFG \
CC_FOR_BUILD="${CT_BUILD}-gcc" \
CFLAGS_FOR_TARGET="${CT_TARGET_CFLAGS}" \
CFLAGS_FOR_TARGET="${cflags_for_target}" \
AR=${CT_TARGET}-ar \
RANLIB=${CT_TARGET}-ranlib \
"${CT_SRC_DIR}/newlib-${CT_LIBC_VERSION}/configure" \