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| author | Bunnaroath Sou <bsou@sifive.com> | 2019-02-27 14:50:43 -0800 |
|---|---|---|
| committer | Bunnaroath Sou <bsou@sifive.com> | 2019-02-27 14:50:43 -0800 |
| commit | 01767ffd966798887ea3719fd51adb8c606710e8 (patch) | |
| tree | faccefc58c38778c044ddc8577cb893e83e3f90b | |
| parent | e18401806b38ca0f60394780191df4b72cb2f88a (diff) | |
Optimize for size using gc-sections, function-sections, data-sections flags
| -rw-r--r-- | scripts/libmetal.mk | 2 | ||||
| -rw-r--r-- | scripts/standalone.mk | 6 |
2 files changed, 4 insertions, 4 deletions
diff --git a/scripts/libmetal.mk b/scripts/libmetal.mk index 7cdb7c5..ea16632 100644 --- a/scripts/libmetal.mk +++ b/scripts/libmetal.mk @@ -13,7 +13,7 @@ $(BSP_DIR)/build/Makefile: @rm -rf $(dir $@) @mkdir -p $(dir $@) cd $(dir $@) && \ - CFLAGS="-march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -g -mcmodel=medany" \ + CFLAGS="-march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -ffunction-sections -fdata-sections -g -mcmodel=medany" \ $(abspath $(MEE_SOURCE_PATH)/configure) \ --host=$(CROSS_COMPILE) \ --prefix=$(abspath $(BSP_DIR)/install) \ diff --git a/scripts/standalone.mk b/scripts/standalone.mk index 52926ac..a412710 100644 --- a/scripts/standalone.mk +++ b/scripts/standalone.mk @@ -90,10 +90,10 @@ $(PROGRAM_ELF): \ AR=$(RISCV_AR) \ CC=$(RISCV_GCC) \ CXX=$(RISCV_GXX) \ - CFLAGS="-Os -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -g -mcmodel=medany -I$(abspath $(BSP_DIR)/install/include/)" \ - CXXFLAGS="-Os -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -g -mcmodel=medany -I$(abspath $(BSP_DIR)/install/include/)" \ + CFLAGS="-Os -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -ffunction-sections -fdata-sections -g -mcmodel=medany -I$(abspath $(BSP_DIR)/install/include/)" \ + CXXFLAGS="-Os -march=$(RISCV_ARCH) -mabi=$(RISCV_ABI) -ffunction-sections -fdata-sections -g -mcmodel=medany -I$(abspath $(BSP_DIR)/install/include/)" \ LDFLAGS="-nostartfiles -nostdlib -L$(sort $(dir $(abspath $(filter %.a,$^)))) -T$(abspath $(filter %.lds,$^))" \ - LDLIBS="-Wl,--start-group -lc -lgcc -lmetal -lmetal-gloss -Wl,--end-group" + LDLIBS="-Wl,--gc-sections -Wl,--start-group -lc -lgcc -lmetal -lmetal-gloss -Wl,--end-group" touch -c $@ .PHONY: clean-software |