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Makefile: Fix -msave-restore compile warning with CLANG-10 (or lower)

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The riscv target of CLANG-10 (or lower) does not support the
-m(no-)save-restore option so we get compile warnings. This patch
fixes compile warning by using -m(no-)save-restore option only
for GCC.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Dong Du <Dd_nirvana@sjtu.edu.cn>
This commit is contained in:
Anup Patel
2021-12-02 10:30:28 +05:30
committed by Anup Patel
parent 460041c816
commit 69d7e53613
1 changed files with 10 additions and 4 deletions
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14
Makefile
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@@ -275,8 +275,11 @@ GENFLAGS += $(platform-genflags-y)
GENFLAGS += $(firmware-genflags-y) GENFLAGS += $(firmware-genflags-y)
CFLAGS = -g -Wall -Werror -ffreestanding -nostdlib -fno-stack-protector -fno-strict-aliasing -O2 CFLAGS = -g -Wall -Werror -ffreestanding -nostdlib -fno-stack-protector -fno-strict-aliasing -O2
CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls -mstrict-align
CFLAGS += -mno-save-restore -mstrict-align # CLANG-10 (or lower) does not support -m(no-)save-restore option
ifneq ($(CC_IS_CLANG),y)
CFLAGS += -mno-save-restore
endif
CFLAGS += -mabi=$(PLATFORM_RISCV_ABI) -march=$(PLATFORM_RISCV_ISA) CFLAGS += -mabi=$(PLATFORM_RISCV_ABI) -march=$(PLATFORM_RISCV_ISA)
CFLAGS += -mcmodel=$(PLATFORM_RISCV_CODE_MODEL) CFLAGS += -mcmodel=$(PLATFORM_RISCV_CODE_MODEL)
CFLAGS += $(RELAX_FLAG) CFLAGS += $(RELAX_FLAG)
@@ -290,8 +293,11 @@ CPPFLAGS += $(platform-cppflags-y)
CPPFLAGS += $(firmware-cppflags-y) CPPFLAGS += $(firmware-cppflags-y)
ASFLAGS = -g -Wall -nostdlib ASFLAGS = -g -Wall -nostdlib
ASFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls ASFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls -mstrict-align
ASFLAGS += -mno-save-restore -mstrict-align # CLANG-10 (or lower) does not support -m(no-)save-restore option
ifneq ($(CC_IS_CLANG),y)
ASFLAGS += -mno-save-restore
endif
ASFLAGS += -mabi=$(PLATFORM_RISCV_ABI) -march=$(PLATFORM_RISCV_ISA) ASFLAGS += -mabi=$(PLATFORM_RISCV_ABI) -march=$(PLATFORM_RISCV_ISA)
ASFLAGS += -mcmodel=$(PLATFORM_RISCV_CODE_MODEL) ASFLAGS += -mcmodel=$(PLATFORM_RISCV_CODE_MODEL)
ASFLAGS += $(RELAX_FLAG) ASFLAGS += $(RELAX_FLAG)