Add loadable/ - build infrastructure for small ram executables.
Also reserve 1k ram for these in the main firmware (Makefile.inc variable RAMCODE)
This commit is contained in:
Stefan `Sec` Zehl
parent
daa08fb31c
commit
37b8a8b8ed
48
Makefile
48
Makefile
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@ -19,6 +19,7 @@ INCLUDE_PATHS = -I$(ROOT_PATH) -I$(ROOT_PATH)/core
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include $(ROOT_PATH)/Makefile.inc
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LDFLAGS+= -Wl,--gc-sections
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VPATH += lpc1xxx
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OBJS += $(TARGET)_handlers.o LPC1xxx_startup.o
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@ -36,8 +37,27 @@ LD_PATH = lpc1xxx
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LD_SCRIPT = $(LD_PATH)/linkscript.ld
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LD_TEMP = $(LD_PATH)/memory.ld
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### User targets:
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all: $(OUTFILE).bin
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protect: $(OUTFILE).bin
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$(LPCFIX) -p 2 $(OUTFILE).bin
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loadables: $(OUTFILE).elf
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@cd loadable && $(MAKE)
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clean:
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rm -f $(OBJS) $(LD_TEMP) $(OUTFILE).elf $(OUTFILE).bin $(OUTFILE).hex
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@cd core && $(MAKE) clean
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@cd tools && $(MAKE) clean
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@cd lcd && $(MAKE) clean
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@cd modules && $(MAKE) clean
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@cd filesystem && $(MAKE) clean
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@cd loadable && $(MAKE) clean
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### Internal targets
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%.o : %.c
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$(CC) $(CFLAGS) -o $@ $<
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@ -56,32 +76,24 @@ filesystem/libfat.a:
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tools/lpcfix:
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cd tools && $(MAKE)
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$(OUTFILE).bin: $(OBJS) $(SYS_OBJS) $(LIBS) $(LPCFIX)
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$(LD_TEMP):
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-@echo "MEMORY" > $(LD_TEMP)
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-@echo "{" >> $(LD_TEMP)
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-@echo " flash(rx): ORIGIN = 0x00000000, LENGTH = $(FLASH)" >> $(LD_TEMP)
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-@echo " sram(rwx): ORIGIN = 0x10000000+$(SRAM_USB), LENGTH = $(SRAM)-$(SRAM_USB)" >> $(LD_TEMP)
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-@echo " sram(rwx): ORIGIN = 0x10000000+$(SRAM_USB), LENGTH = $(SRAM)-$(SRAM_USB)-$(RAMCODE)" >> $(LD_TEMP)
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-@echo "}" >> $(LD_TEMP)
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-@echo "INCLUDE $(LD_SCRIPT)" >> $(LD_TEMP)
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$(LD) $(LDFLAGS) -T $(LD_TEMP) -o $(OUTFILE).elf $(OBJS) $(LDLIBS)
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$(OUTFILE).elf: $(OBJS) $(SYS_OBJS) $(LIBS) $(LPCFIX) $(LD_TEMP)
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$(CC) $(LDFLAGS) -T $(LD_TEMP) -o $(OUTFILE).elf $(OBJS) $(LDLIBS)
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-@echo ""
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$(SIZE) $(OUTFILE).elf
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-@echo ""
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$(OBJCOPY) $(OCFLAGS) -O binary $(OUTFILE).elf $(OUTFILE).bin
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%.bin: %.elf
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$(OBJCOPY) $(OCFLAGS) -O binary $< $@
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-@echo ""
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$(LPCFIX) -c $(OUTFILE).bin
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$(LPCFIX) -c $@
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protect: $(OUTFILE).bin
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$(LPCFIX) -p 2 $(OUTFILE).bin
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clean:
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rm -f $(OBJS) $(LD_TEMP) $(OUTFILE).elf $(OUTFILE).bin $(OUTFILE).hex
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@cd core && $(MAKE) clean
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@cd tools && $(MAKE) clean
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@cd lcd && $(MAKE) clean
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@cd modules && $(MAKE) clean
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@cd filesystem && $(MAKE) clean
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.PHONY: lcd/liblcd.a modules/libmodules.a filesystem/libfat.a
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.PHONY: $(LD_TEMP) lcd/liblcd.a modules/libmodules.a filesystem/libfat.a
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@ -7,6 +7,7 @@
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TARGET = LPC13xx
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FLASH = 32K
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SRAM = 8K
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RAMCODE=1K
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# For USB HID support the LPC134x reserves 384 bytes from the sram,
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# if you don't want to use the USB features, just use 0 here.
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@ -19,7 +20,8 @@ SRAM_USB = 384
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CROSS_COMPILE = arm-none-eabi-
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AS = $(CROSS_COMPILE)gcc
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CC = $(CROSS_COMPILE)gcc
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LD = $(CROSS_COMPILE)gcc
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LD = $(CROSS_COMPILE)ld
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REALLD = $(CROSS_COMPILE)ld
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SIZE = $(CROSS_COMPILE)size
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OBJCOPY = $(CROSS_COMPILE)objcopy
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OBJDUMP = $(CROSS_COMPILE)objdump
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@ -39,5 +41,5 @@ CPU_TYPE = cortex-$(CORTEX_TYPE)
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##########################################################################
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CFLAGS = -std=c99 -c -g -Os $(INCLUDE_PATHS) -Wall -mthumb -ffunction-sections -fdata-sections -fmessage-length=0 -mcpu=$(CPU_TYPE) -DTARGET=$(TARGET) -fno-builtin
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LDFLAGS = -nostartfiles -mthumb -mcpu=$(CPU_TYPE) -Wl,--gc-sections
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LDFLAGS = -nostartfiles
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@ -0,0 +1,3 @@
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*.elf
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*.bin
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*.h
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@ -0,0 +1,12 @@
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# Make doesn't allow dependencies on parent directory, so we need to
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# run make from one level up:
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MAKEFILE=loadable/Makefile.sub
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MAKE+=--no-print-directory
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all:
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@cd .. && $(MAKE) -f $(MAKEFILE)
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clean:
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@cd .. && $(MAKE) -f $(MAKEFILE) clean
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@ -0,0 +1,47 @@
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DIR?= loadable
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##########################################################################
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# User configuration and firmware specific object files
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##########################################################################
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SRCS = $(wildcard $(DIR)/*.c)
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OBJS = $(foreach mod,$(SRCS),$(subst .c,.o,$(mod)))
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ELFS = $(foreach mod,$(SRCS),$(subst .c,.elf,$(mod)))
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BINS = $(foreach mod,$(SRCS),$(subst .c,.bin,$(mod)))
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HDRS = $(foreach mod,$(SRCS),$(subst .c,.h,$(mod)))
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##########################################################################
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# GNU GCC compiler flags
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##########################################################################
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ROOT_PATH?= .
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INCLUDE_PATHS = -I$(ROOT_PATH) -I$(ROOT_PATH)/core
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include $(ROOT_PATH)/Makefile.inc
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##########################################################################
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# Compiler settings, parameters and flags
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##########################################################################
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FIRMWARE=$(ROOT_PATH)/$(OUTFILE).elf
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LDFILE=$(DIR)/loadable.ld
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CFLAGS+=-mlong-calls
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LDFLAGS+= -R $(FIRMWARE)
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all: $(OBJS) $(ELFS) $(BINS) $(HDRS)
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%.o : %.c
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$(CC) $(CFLAGS) -o $@ $<
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%.elf: %.o $(FIRMWARE) $(LDFILE)
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$(LD) $(LDFLAGS) -T $(LDFILE) -o $@ $<
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$(SIZE) $@
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%.bin: %.elf
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$(OBJCOPY) $(OCFLAGS) -O binary $< $@
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%.h: %.bin $(DIR)/bin2h.pl
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$(DIR)/bin2h.pl $<
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clean:
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cd $(DIR) && rm -f *.o *.elf *.bin
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.SUFFIXES:
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@ -0,0 +1,41 @@
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#!/usr/bin/perl
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#
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# vim:set ts=4 sw=4:
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use strict;
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sub dwim{
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local $/=undef;
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my $file=shift;
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open(IN,"<:bytes",$file) || die "Can't open $file: $!";
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my @bytes=unpack("C*",<IN>);
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close(IN);
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$file=~s/\.[^.]+$//;
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open(OUT,">","${file}.h") || die "Can't write ${file}.h: $!";
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$file=~s!.*/!!;
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print OUT "const uint16_t loadable_${file}_size = ", scalar @bytes, ";\n";
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print OUT "const uint8_t loadable_${file}[] = {\n";
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my $ctr=0;
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for(@bytes){
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print OUT "\t" if($ctr==0);
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printf OUT "0x%02x, ",$_;
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if(++$ctr==8){
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print OUT "\n";
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$ctr=0;
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};
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};
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print OUT "\n" if($ctr!=0);
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print OUT "};\n";
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close(OUT);
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};
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for(@ARGV){
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dwim($_);
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};
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@ -0,0 +1,10 @@
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#include <sysinit.h>
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#include "basic/basic.h"
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void ram(void){
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for (int x=0;x<20;x++){
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gpioSetValue (RB_LED1, x%2);
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delayms(50);
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};
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};
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@ -0,0 +1,52 @@
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MEMORY
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{
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sram(rwx): ORIGIN = 0x10001800, LENGTH = 2K
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}
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sram_top = ORIGIN(sram) + LENGTH(sram);
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ENTRY(boot_entry)
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SECTIONS
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{
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.text :
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{
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*(.text*)
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*(.rodata*)
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} > sram
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/*
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* More information about Special Section Indexes is available in the
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* free "ELF for the ARM Architecture" document from ARM Limited
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* http://infocenter.arm.com/help/topic/com.arm.doc.ihi0044d/IHI0044D_aaelf.pdf
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*
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*/
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.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } > sram
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__exidx_start = .;
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.ARM.exidx : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) } > sram
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__exidx_end = .;
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_etext = .;
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.data : AT (__exidx_end)
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{
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_data = .;
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*(vtable)
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*(.data*)
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_edata = .;
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} > sram
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/* zero initialized data */
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.bss :
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{
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_bss = .;
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*(.bss*)
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*(COMMON)
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_ebss = .;
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} > sram
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end = .;
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/* For GDB compatibility we decrease the top with 16 bytes */
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stack_entry = sram_top - 16;
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}
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