link objects in as archives so only what we need gets linked.
Add an option to build objects without space resevered for rom calls.
This commit is contained in:
Mariano Alvira
parent
4a61c10879
commit
8bd9f182d4
3 changed files with 19 additions and 39 deletions
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@ -13,7 +13,7 @@ include $(LIBMC1322X)/Makefile.lib
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CFLAGS += -I$(MC1322X)/src -I.
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ifdef USE_ROM_VARS
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ifdef TARGET_ROM_VARS
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START = $(MC1322X)/src/start-romvars.o
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endif
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@ -24,7 +24,7 @@ endif
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ifndef ISR
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ISR = $(MC1322X)/src/isr.o
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endif
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SRCOBJS += $(MC1322X)/src/default_lowlevel.o
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SRCOBJS += $(MC1322X)/src/default_lowlevel.o $(ISR) $(START)
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BOARDOBJS := $(addprefix $(OBJDIR)/,$(COBJS))
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ARCH = arm
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@ -49,15 +49,20 @@ endef
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$(START): $(START:.o=.s)
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$(CC) $(AFLAGS) -c -o $@ $<
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$(MC1322X)/src/start-romvars.s: $(MC1322X)/src/start.S
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$(CPP) $(AFLAGS) -DUSE_ROM_VARS -o $@ $<
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$(CPP) $(AFLAGS) -DUSE_INTS -DUSE_ROM_VECTS -DUSE_ROM_VARS -o $@ $<
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$(MC1322X)/src/start-romvects.s: $(MC1322X)/src/start.S
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$(CPP) $(AFLAGS) -DUSE_INTS -DUSE_ROM_VECTS -o $@ $<
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$(ISR): $(ISR:.o=.c)
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$(CC) $(CFLAGS) $(ARM_FLAGS) -MMD $< -c -o $@
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@$(FINALIZE_DEPENDENCY)
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%_$(BOARD).elf: $(START) $(ISR) $(SRCOBJS) $(OBJDIR)/%.o $(BOARDOBJS) $(LINKERSCRIPT) $(LIBMC1322X)/libmc1322x.a
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$(CC) $(LDFLAGS) $(AOBJS) \
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$(filter %.o %.a,$+) -o $@
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$(OBJDIR)/board.a: $(OBJDIR)/board.a($(OBJDIR)/$(COBJS))
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$(MC1322X)/src/src.a: $(MC1322X)/src/src.a($(SRCOBJS))
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%_$(BOARD).elf: $(OBJDIR)/%.o $(START) $(ISR) $(SRCOBJS) $(LINKERSCRIPT) $(LIBMC1322X)/libmc1322x.a $(OBJDIR)/board.a $(MC1322X)/src/src.a
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$(CC) $(LDFLAGS) \
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-L $(LIBMC1322X) -L $(MC1322X)/src -L $(OBJDIR) $< -o $@ $(START) $(MC1322X)/src/src.a $(LIBMC1322X)/libmc1322x.a $(OBJDIR)/board.a
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%.srec: %.elf
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$(OBJCOPY) ${OBJCFLAGS} -O srec $< $@
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@ -117,7 +122,7 @@ endif
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all: $(OBJDIR)/board.h
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for target in $(TARGETS); do make $$target\_$(BOARD).bin; done
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for target in $(TARGETS_WITH_ROM_VARS); do make USE_ROM_VARS=1 $$target\_$(BOARD).bin; done
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for target in $(TARGETS_WITH_ROM_VARS); do make TARGET_ROM_VARS=1 $$target\_$(BOARD).bin; done
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allboards:
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for board in $(BOARDS); do make BOARD=$$board all; done
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33
src/start.S
33
src/start.S
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@ -57,7 +57,6 @@
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.set base, .
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.set _rom_data_init, 0x108d0
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.globl _start
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_start: b _begin
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ldr pc, _undefined_instruction
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@ -67,7 +66,8 @@ _start: b _begin
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ldr pc, _not_used
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ldr pc, _irq
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ldr pc, _fiq
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#ifdef USE_ROM_VARS
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/* these vectors are used for rom patching */
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.org 0x20
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.code 16
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@ -85,13 +85,13 @@ _RPTV_2_START:
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.org 0xe0
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_RPTV_3_START:
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bx lr /* do nothing */
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#ifdef USE_ROM_VARS
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.org 0x120
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ROM_var_start: .word 0
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.org 0x7ff
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ROM_var_end: .word 0
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#endif
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#endif /*USE_ROM_VARS*/
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.code 32
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.align
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@ -129,6 +129,7 @@ _begin:
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// mov sp,r1
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b main
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_undefined_instruction: .word undefined_instruction
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_software_interrupt: .word software_interrupt
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@ -177,29 +178,6 @@ _bss_end:
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_start_armboot: .word main
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/*
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*************************************************************************
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*
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* CPU_init_critical registers
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*
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*************************************************************************
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*/
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cpu_init_crit:
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# actually do nothing for now!
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mov pc, lr
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/*
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*************************************************************************
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*
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* Interrupt handling
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*
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*************************************************************************
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*/
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/*
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* exception handlers
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*/
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@ -233,4 +211,3 @@ fiq:
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.globl reset_cpu
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reset_cpu:
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mov pc, r0
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@ -8,15 +8,13 @@ COBJS := tests.o
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# all of the target programs to build
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TARGETS := blink-red blink-green blink-blue blink-white blink-allio \
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uart1-loopback \
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nvm-read nvm-write romimg flasher \
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tmr tmr-ints \
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sleep \
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rftest-rx rftest-tx \
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printf
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printf
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# these targets are built with space reserved for variables needed by ROM services
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# this space is initialized with a rom call to rom_data_init
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TARGETS_WITH_ROM_VARS :=
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TARGETS_WITH_ROM_VARS := nvm-read nvm-write romimg flasher rftest-rx rftest-tx
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include $(MC1322X)/Makefile.include
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