It only supports the static linkage of the whole lib into vmlinux for now. Exports are generated. Signed-off-by: Bastian Blank <waldi@xxxxxxxxxx> --- lib/Makefile | 2 ++ lib/libgcc/Makefile | 29 +++++++++++++++++++++++++++++ 2 files changed, 31 insertions(+), 0 deletions(-) create mode 100644 lib/libgcc/Makefile diff --git a/lib/Makefile b/lib/Makefile index d6edd67..521f2d5 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -92,6 +92,8 @@ obj-$(CONFIG_NLATTR) += nlattr.o obj-$(CONFIG_DMA_API_DEBUG) += dma-debug.o +obj-$(CONFIG_LIBGCC_SUPPORT) += libgcc/ + hostprogs-y := gen_crc32table clean-files := crc32table.h diff --git a/lib/libgcc/Makefile b/lib/libgcc/Makefile new file mode 100644 index 0000000..50dff0b --- /dev/null +++ b/lib/libgcc/Makefile @@ -0,0 +1,29 @@ +libfuncs = \ + _divdi3 _moddi3 _udivdi3 _umoddi3 _udiv_w_sdiv _udivmoddi4 \ + _muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3 _cmpdi2 _ucmpdi2 _absvsi2 \ + _absvdi2 _addvsi3 _addvdi3 _subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 \ + _negvdi2 _ffssi2 _ffsdi2 _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 \ + _popcountsi2 _popcountdi2 _paritysi2 _paritydi2 \ + _bswapsi2 _bswapdi2 + +libsyms = $(libfuncs) _clz _popcount_tab + +quiet_cmd_libgcc_cc_o_c = CC [L] $@ + cmd_libgcc_cc_o_c = $(CC) $(c_flags) -c -o $@ $< -std=gnu99 -Wno-declaration-after-statement -DL$* + +quiet_cmd_libgcc_exports = GEN $@ + cmd_libgcc_exports = ( \ + echo '\#include <linux/module.h>'; \ + echo '\#include "libgcc2.c"'; \ + $(patsubst %,echo 'EXPORT_SYMBOL(_%);';,$(libfuncs)) \ + ) + +$(patsubst %,$(obj)/%.o,$(libsyms)): $(obj)/%.o: $(src)/libgcc2.c FORCE + $(call if_changed_dep,libgcc_cc_o_c) + +$(obj)/_exports.c: FORCE + $(call cmd,libgcc_exports) > $@ + +obj-y := $(patsubst %,%.o,$(libsyms)) _exports.o + +clean-files := _exports.c -- 1.6.2.1 -- ... The prejudices people feel about each other disappear when they get to know each other. -- Kirk, "Elaan of Troyius", stardate 4372.5 -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
