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| author | Khem Raj <raj.khem@gmail.com> | 2025-05-14 19:59:31 -0700 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2025-06-15 18:28:55 +0530 |
| commit | 6d23a9c5707de7243c0b3423724c0e4f3e1ee40d (patch) | |
| tree | 1e59f7befeb0e522e0fe29c0bf00c908e40501d1 | |
| parent | 66ab965e54017292d530033ffaae127389c45458 (diff) | |
| download | opensbi-6d23a9c5707de7243c0b3423724c0e4f3e1ee40d.zip opensbi-6d23a9c5707de7243c0b3423724c0e4f3e1ee40d.tar.gz opensbi-6d23a9c5707de7243c0b3423724c0e4f3e1ee40d.tar.bz2 | |
Makefile: Add flag for reprodubility compiler flags
Provides mechanism to remove absolute paths from binaries using
-ffile-prefix-map
It will help distros (e.g. yocto based ones ) which want to ship
the .elf files but need to scrub absolute paths in objects
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Link: https://lore.kernel.org/r/20250515025931.3383142-1-raj.khem@gmail.com
Signed-off-by: Anup Patel <anup@brainfault.org>
| -rw-r--r-- | Makefile | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -180,6 +180,11 @@ else USE_LD_FLAG = -fuse-ld=bfd endif +REPRODUCIBLE ?= n +ifeq ($(REPRODUCIBLE),y) +REPRODUCIBLE_FLAGS += -ffile-prefix-map=$(src_dir)= +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) @@ -369,6 +374,7 @@ GENFLAGS += $(firmware-genflags-y) CFLAGS = -g -Wall -Werror -ffreestanding -nostdlib -fno-stack-protector -fno-strict-aliasing -ffunction-sections -fdata-sections CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls CFLAGS += -fno-asynchronous-unwind-tables -fno-unwind-tables +CFLAGS += $(REPRODUCIBLE_FLAGS) # Optionally supported flags ifeq ($(CC_SUPPORT_VECTOR),y) CFLAGS += -DOPENSBI_CC_SUPPORT_VECTOR @@ -394,6 +400,7 @@ CPPFLAGS += $(firmware-cppflags-y) ASFLAGS = -g -Wall -nostdlib ASFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls ASFLAGS += -fPIE +ASFLAGS += $(REPRODUCIBLE_FLAGS) # Optionally supported flags ifeq ($(CC_SUPPORT_SAVE_RESTORE),y) ASFLAGS += -mno-save-restore |