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| author | Leon M. Busch-George <[email protected]> | 2024-01-26 16:21:24 +0100 |
|---|---|---|
| committer | Anup Patel <[email protected]> | 2024-02-05 16:34:44 +0530 |
| commit | d1dad07cb88fbf601556b4df8ef2bac70fed7143 (patch) | |
| tree | c1af30d8cd070f511e978a17ab444cc194b7dfb3 | |
| parent | 4a76f79ff5e01bb72eedcf636a11f4c701d1568d (diff) | |
Makefile: check for --exclude-libs
While writing to the dynsym is futile, the --exclude-libs options is not
recognized by all linkers (e.g. riscv64-elf-ld.bfd).
Signed-off-by: Leon M. Busch-George <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
| -rw-r--r-- | Makefile | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -167,6 +167,9 @@ endif # Check whether the linker supports creating PIEs OPENSBI_LD_PIE := $(shell $(CC) $(CLANG_TARGET) $(RELAX_FLAG) $(USE_LD_FLAG) -fPIE -nostdlib -Wl,-pie -x c /dev/null -o /dev/null >/dev/null 2>&1 && echo y || echo n) +# Check whether the linker supports --exclude-libs +OPENSBI_LD_EXCLUDE_LIBS := $(shell $(CC) $(CLANG_TARGET) $(RELAX_FLAG) $(USE_LD_FLAG) "-Wl,--exclude-libs,ALL" -x c /dev/null -o /dev/null >/dev/null 2>&1 && echo y || echo n) + # Check whether the compiler supports -m(no-)save-restore CC_SUPPORT_SAVE_RESTORE := $(shell $(CC) $(CLANG_TARGET) $(RELAX_FLAG) -nostdlib -mno-save-restore -x c /dev/null -o /dev/null 2>&1 | grep -e "-save-restore" >/dev/null && echo n || echo y) @@ -384,7 +387,9 @@ ASFLAGS += $(firmware-asflags-y) ARFLAGS = rcs ELFFLAGS += $(USE_LD_FLAG) +ifeq ($(OPENSBI_LD_EXCLUDE_LIBS),y) ELFFLAGS += -Wl,--exclude-libs,ALL +endif ELFFLAGS += -Wl,--build-id=none ELFFLAGS += $(platform-ldflags-y) ELFFLAGS += $(firmware-ldflags-y) |