rfivet/stm32bringup
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Revise linker flags generation. Remove extra word alignment introduced for STM32 Flash Loader Demonstrator (deprecated).

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This commit is contained in:
Renaud 2021-06-08 16:45:53 +08:00
parent 1a6278a2ae
commit 5d11a2cdfa
4 changed files with 24 additions and 22 deletions
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41
Makefile
View File

@ -39,7 +39,7 @@ SIZE = $(BINPFX)size
### STM32F030F4P6 based board ### STM32F030F4P6 based board
PROJECT = f030f4.$(FLASHSTART) PROJECT = f030f4
# In RAM Execution # In RAM Execution
# Bootloader uses first 2K of RAM, execution from bootloader # Bootloader uses first 2K of RAM, execution from bootloader
@ -90,16 +90,18 @@ WARNINGS=-pedantic -Wall -Wextra -Wstrict-prototypes -Wno-unused-parameter
CFLAGS = $(CPU) -g $(WARNINGS) -Os $(CDEFINES) CFLAGS = $(CPU) -g $(WARNINGS) -Os $(CDEFINES)
LD_SCRIPT = generic.ld LD_SCRIPT = generic.ld
LDDEFS = --defsym,FLASHSTART=$(FLASHSTART),--defsym,FLASHSIZE=$(FLASHSIZE) LDOPTS =--defsym FLASHSTART=$(FLASHSTART) --defsym FLASHSIZE=$(FLASHSIZE)
LDDEFINES = $(LDDEFS),--defsym,RAMSTART=$(RAMSTART),--defsym,RAMSIZE=$(RAMSIZE) LDOPTS +=--defsym RAMSTART=$(RAMSTART) --defsym RAMSIZE=$(RAMSIZE)
LIBSTEM = stm32 LDOPTS +=-Map=$(subst .elf,.map,$@) -cref --print-memory-usage
LIBS = -l$(LIBSTEM) comma :=,
space :=$() # one space before the comment
LDFLAGS =-Wl,$(subst $(space),$(comma),$(LDOPTS))
### Build rules ### Build rules
.PHONY: clean all version .PHONY: clean all version
all: $(PROJECT).hex $(PROJECT).bin all: $(PROJECT).hex $(PROJECT).$(FLASHSTART).bin
version: version:
@echo make $(MAKE_VERSION) $(MAKE_HOST) @echo make $(MAKE_VERSION) $(MAKE_HOST)
@ -110,27 +112,30 @@ clean:
@echo CLEAN @echo CLEAN
@rm -f *.o *.elf *.map *.lst *.bin *.hex *.a @rm -f *.o *.elf *.map *.lst *.bin *.hex *.a
$(PROJECT).elf: $(OBJS) lib$(LIBSTEM).a $(PROJECT).elf: $(OBJS) libstm32.a
@echo $@ boot.elf: boot.o
$(CC) $(CPU) -T$(LD_SCRIPT) -L. -Wl,$(LDDEFINES),-Map=$(PROJECT).map,-cref \ ledon.elf: ledon.o
-nostartfiles -o $@ $(OBJS) $(LIBS) blink.elf: blink.o
$(SIZE) $@ ledtick.elf: ledtick.o
$(OBJDUMP) -hS $@ > $(PROJECT).lst cstartup.elf: cstartup.o
%.elf: %.o lib$(LIBSTEM).a %.elf:
@echo $@ @echo $@
$(CC) $(CPU) -T$(LD_SCRIPT) -L. -Wl,$(LDDEFINES),-Map=$*.map,-cref \ $(CC) $(CPU) -T$(LD_SCRIPT) $(LDFLAGS) -nostartfiles -o $@ $+
-nostartfiles -o $@ $< $(LIBS) $(SIZE) -G $@
$(SIZE) $@ $(OBJDUMP) -hS $@ > $(subst .elf,.lst,$@)
$(OBJDUMP) -hS $@ > $*.lst
%.bin: %.elf %.bin: %.elf
@echo $@ @echo $@
$(OBJCOPY) -O binary $< $@ $(OBJCOPY) -O binary $< $@
%.$(FLASHSTART).bin: %.elf
@echo $@
$(OBJCOPY) -O binary $< $@
%.hex: %.elf %.hex: %.elf
@echo $@ @echo $@
$(OBJCOPY) -O ihex $< $@ $(OBJCOPY) -O ihex $< $@
lib$(LIBSTEM).a: $(LIBOBJS) libstm32.a: $(LIBOBJS)
$(AR) rc $@ $? $(AR) rc $@ $?

1
f030f4.ld
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@ -70,7 +70,6 @@ SECTIONS
*(.rodata*) *(.rodata*)
*(.eh_frame*) *(.eh_frame*)
. = ALIGN(4);
} > FLASH } > FLASH
.ARM.extab : .ARM.extab :

1
f030f4.ram.ld
View File

@ -73,7 +73,6 @@ SECTIONS
*(.rodata*) *(.rodata*)
*(.eh_frame*) *(.eh_frame*)
. = ALIGN(4);
} > FLASH } > FLASH
.ARM.extab : .ARM.extab :

3
generic.ld
View File

@ -74,7 +74,6 @@ SECTIONS
*(.rodata*) *(.rodata*)
*(.eh_frame*) *(.eh_frame*)
. = ALIGN(4);
} > FLASH } > FLASH
.ARM.extab : .ARM.extab :
@ -129,7 +128,7 @@ SECTIONS
__etext = ALIGN (4); __etext = ALIGN (4);
/* In RAM isr vector reserved space at beginning of RAM */ /* In RAM isr vector reserved space at beginning of RAM */
.isrdata (COPY): .isrdata (NOLOAD):
{ {
KEEP(*(.ram_vector)) KEEP(*(.ram_vector))
} > RAM } > RAM