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Demo/CORTEX_M3_MPS2_QEMU_GCC: Fix use of -ffunction-sections -fdata-sections

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For these options to be of any use, they must be passed to the
compiler when building object files and then the --gc-sections flag
must be passed to the linker.

Add -ffunction-sections -fdata-sections to CFLAGS and then add
-Wl,--gc-sections to LDFLAGS.

Signed-off-by: Keith Packard <keithpac@amazon.com>
This commit is contained in:
Keith Packard
2023-03-02 12:47:05 -08:00
committed by Paul Bartell
parent 68ef270215
commit 0a1db4b00c
1 changed files with 3 additions and 1 deletions
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4
FreeRTOS/Demo/CORTEX_M3_MPS2_QEMU_GCC/Makefile
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@ -68,10 +68,12 @@ DEFINES := -DQEMU_SOC_MPS2 -DHEAP3
LDFLAGS = -T ./scripts/mps2_m3.ld -specs=nano.specs --specs=rdimon.specs -lc -lrdimon
LDFLAGS += -Xlinker -Map=${BUILD_DIR}/output.map
LDFLAGS += -Wl,--gc-sections
CFLAGS += -nostartfiles -mthumb -mcpu=cortex-m3 -Wno-error=implicit-function-declaration
CFLAGS += -Wno-builtin-declaration-mismatch -Werror
CFLAGS += -Wall -Wextra
CFLAGS += -ffunction-sections -fdata-sections
ifeq ($(DEBUG), 1)
CFLAGS += -ggdb3 -Og
@ -88,7 +90,7 @@ CFLAGS += $(INCLUDE_DIRS)
.PHONY: clean
$(BUILD_DIR)/$(BIN) : $(OBJ_FILES)
$(CC) -ffunction-sections -fdata-sections $(CFLAGS) $(LDFLAGS) $+ -o $(@)
$(CC) $(CFLAGS) $(LDFLAGS) $+ -o $(@)
%.d: %.c
@set -e; rm -f $@; \