diff options
| author | Ha Thach <[email protected]> | 2021-10-13 00:57:45 +0700 |
|---|---|---|
| committer | GitHub <[email protected]> | 2021-10-13 00:57:45 +0700 |
| commit | b26cc2cc4694d883cc060c03c57d201753b4c72a (patch) | |
| tree | 3d4fc6a647f388c7526cb6282e013081c7e0a9c7 /examples | |
| parent | 2ba690d31df6e2908cb683494171aa3739bd8991 (diff) | |
Add linkermap for size analysis (#1136)
* add NO_LTO option to make
* add linkermap submodule and linkermap target
* add linkermap to ci build
* linkermap doesn't work with esp32sx map file yet
* add note for linkermap target
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/rules.mk | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/examples/rules.mk b/examples/rules.mk index 7e494b3d8..92fa4e14d 100644 --- a/examples/rules.mk +++ b/examples/rules.mk @@ -5,12 +5,11 @@ # Set all as default goal .DEFAULT_GOAL := all -# ESP32-SX and RP2040 has its own CMake build system -ifneq ($(FAMILY),esp32s2) -ifneq ($(FAMILY),esp32s3) -ifneq ($(FAMILY),rp2040) +# ESP32-Sx and RP2040 has its own CMake build system +ifeq (,$(findstring $(FAMILY),esp32s2 esp32s3 rp2040)) + # --------------------------------------- -# GNU Make build system +# Compiler Flags # --------------------------------------- # libc @@ -44,6 +43,12 @@ INC += $(TOP)/src CFLAGS += $(addprefix -I,$(INC)) +# LTO makes it difficult to analyze map file for optimizing size purpose +# We will run this option in ci +ifeq ($(NO_LTO),1) +CFLAGS := $(filter-out -flto,$(CFLAGS)) +endif + LDFLAGS += $(CFLAGS) -Wl,-T,$(TOP)/$(LD_FILE) -Wl,[email protected] -Wl,-cref -Wl,-gc-sections ifneq ($(SKIP_NANOLIB), 1) LDFLAGS += -specs=nosys.specs -specs=nano.specs @@ -67,6 +72,10 @@ $(info LDFLAGS $(LDFLAGS)) $(info ) $(info ASFLAGS $(ASFLAGS)) $(info ) endif +# --------------------------------------- +# Rules +# --------------------------------------- + all: $(BUILD)/$(PROJECT).bin $(BUILD)/$(PROJECT).hex size uf2: $(BUILD)/$(PROJECT).uf2 @@ -126,11 +135,17 @@ $(BUILD)/obj/%_asm.o: %.S @echo AS $(notdir $@) @$(CC) -x assembler-with-cpp $(ASFLAGS) -c -o $@ $< +endif # GNU Make + size: $(BUILD)/$(PROJECT).elf -@echo '' @$(SIZE) $< -@echo '' +# linkermap must be install previously at https://github.com/hathach/linkermap +linkermap: $(BUILD)/$(PROJECT).elf + @linkermap -v $<.map + .PHONY: clean clean: ifeq ($(CMDEXE),1) @@ -139,10 +154,6 @@ else $(RM) -rf $(BUILD) endif -endif -endif -endif # GNU Make - # --------------------------------------- # Flash Targets # --------------------------------------- @@ -204,4 +215,4 @@ copy-artifact: $(BIN) # Print out the value of a make variable. # https://stackoverflow.com/questions/16467718/how-to-print-out-a-variable-in-makefile print-%: - @echo $* = $($*) + @echo $* = $($*)
\ No newline at end of file |