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Use LTO to save up to 7k of flash (#305)

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This commit is contained in:
Valmantas Palikša
2018-05-18 11:54:57 +03:00
committed by Ben V. Brown
parent b0b512030f
commit fc669dc274
1 changed files with 4 additions and 4 deletions
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8
workspace/TS100/Makefile
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@@ -32,7 +32,7 @@ HEXFILE_DIR=Hexfile
OUTPUT_DIR=Objects
# code optimisation ------------------------------------------------------------
OPTIM=-Os -finline-small-functions -findirect-inlining -fdiagnostics-color -ffunction-sections -fdata-sections
OPTIM=-Os -flto -finline-small-functions -findirect-inlining -fdiagnostics-color -ffunction-sections -fdata-sections
# global defines ---------------------------------------------------------------
@@ -73,7 +73,7 @@ LINKER_FLAGS=-Wl,--gc-sections \
-mcpu=cortex-m3 \
-mthumb \
-mfloat-abi=soft \
-lm
-lm -Os -flto -Wl,--undefined=vTaskSwitchContext
# compiler flags ---------------------------------------------------------------
CPUFLAGS=-D GCC_ARMCM3 \
@@ -185,13 +185,13 @@ all: $(OUT_HEXFILE).hex
# Create hexfile
%.hex : %.elf
$(SIZE) -x $^
$(SIZE) $^
$(OBJCOPY) $^ -O ihex $@
$(OUT_HEXFILE).elf : $(OUT_OBJS) $(OUT_OBJS_CPP) $(OUT_OBJS_S) Makefile $(LDSCRIPT)
@test -d $(@D) || mkdir -p $(@D)
@echo Linking $(OUTPUT_EXE).elf
@$(CPP) $(CXXFLAGS) $(OUT_OBJS) $(OUT_OBJS_CPP) $(OUT_OBJS_S) $(LIBS) $(LINKER_FLAGS)
@$(CPP) $(CXXFLAGS) $(OUT_OBJS_S) $(OUT_OBJS) $(OUT_OBJS_CPP) $(LIBS) $(LINKER_FLAGS)
$(OUT_OBJS): $(OUTPUT_DIR)/%.o : %.c Makefile
@test -d $(@D) || mkdir -p $(@D)