Added elfloader machine dependent code for STM32W.
This commit is contained in:
parent
ced88c2eff
commit
5fe80dd99d
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@ -16,7 +16,7 @@ CONTIKI_CPU=$(CONTIKI)/cpu/stm32w108
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CONTIKI_CPU_DIRS = . dev hal simplemac hal/micro/cortexm3 hal/micro/cortexm3/stm32w108
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STM32W_C = leds-arch.c leds.c clock.c watchdog.c uart1.c uart1-putchar.c slip_uart1.c \
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STM32W_C = leds-arch.c leds.c clock.c watchdog.c uart1.c uart1-putchar.c slip_uart1.c slip.c\
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stm32w-radio.c stm32w_systick.c uip_arch.c rtimer-arch.c adc.c micro.c sleep.c \
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micro-common.c micro-common-internal.c clocks.c mfg-token.c nvm.c flash.c rand.c
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@ -29,6 +29,11 @@ else
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STM32W_C += crt_stm32w108.c
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endif
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ifdef ELF_LOADER
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ELFLOADER = elfloader-arch.c symtab.c
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endif
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# .s and .s79 not specified here because in Makefile.include only .c and .S suffixes are replaced with .o.
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CONTIKI_TARGET_SOURCEFILES += $(STM32W_C) \
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$(SYSAPPS) $(ELFLOADER) \
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@ -55,7 +60,9 @@ AS = iasmarm
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AR = iarchive
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OBJCOPY = ielftool
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STRIP = strip
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ifndef DEBUG
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OPTI = -Ohz --no_unroll
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endif
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CFLAGSNO = --endian=little --cpu=Cortex-M3 -e --diag_suppress Pa050 -D BOARD_HEADER=\"board.h\" \
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-D BOARD_MB851 -D "PLATFORM_HEADER=\"hal/micro/cortexm3/compiler/iar.h\"" -D CORTEXM3 \
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-D CORTEXM3_STM32W108 -D PHY_STM32W108XX -D DISABLE_WATCHDOG -D ENABLE_ADC_EXTENDED_RANGE_BROKEN \
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@ -73,14 +80,18 @@ OBJOPTS = --bin
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else
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# GCC
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CC = arm-none-eabi-gcc
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CC = arm-none-eabi-gcc
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LD = arm-none-eabi-gcc
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AS = arm-none-eabi-gcc
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AS = arm-none-eabi-gcc
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NM = arm-none-eabi-nm
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AR = arm-none-eabi-ar
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OBJCOPY = arm-none-eabi-objcopy
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STRIP = arm-none-eabi-strip
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SIZE = arm-none-eabi-size
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OPTI = -Os -ffunction-sections -fshort-enums
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SIZE = arm-none-eabi-size
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ifndef DEBUG
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OPTI = -Os -ffunction-sections
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endif
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CFLAGSNO = -mthumb -mcpu=cortex-m3 -fsigned-char -D "PLATFORM_HEADER=\"hal/micro/cortexm3/compiler/gnu.h\"" \
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-D BOARD_HEADER=\"board.h\" -g -Wall -Wno-strict-aliasing -mlittle-endian \
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-D BOARD_MB851 -D CORTEXM3 -D CORTEXM3_STM32W108 -D PHY_STM32W108XX -D DISABLE_WATCHDOG -D ENABLE_ADC_EXTENDED_RANGE_BROKEN \
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@ -94,27 +105,34 @@ LDFLAGS += -mcpu=cortex-m3 \
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-Wl,-static \
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-u Default_Handler \
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-nostartfiles \
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-Wl,-Map -Xlinker contiki-$(TARGET).map \
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-Wl,--gc-sections
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-Wl,-Map -Xlinker contiki-$(TARGET).map
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ifndef ELF_LOADER
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# Do not use garbage collection when the elfloader is used.
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LDFLAGS += -Wl,--gc-sections
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endif
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SIZEFLAGS = -A
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OBJOPTS = -O binary
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endif
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ifdef COFFEE_FILES #if files are defined force definition of COFFEE_ADDRESS
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ifndef COFFEE_ADDRESS
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COFFEE_ADDRESS=0x8010000
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endif
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COFFEE_ADDRESS1 = $(shell echo $$(( $(COFFEE_ADDRESS) + 1 )))
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CONTIKI_TARGET_SOURCEFILES += cfs-coffee.c cfs-coffee-arch.c
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CFLAGS += -DCOFFEE_FILES=$(COFFEE_FILES) -DCOFFEE_ADDRESS=$(COFFEE_ADDRESS)
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ifdef IAR
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LDFLAGS+= --config $(CONTIKI_CPU)/hal/micro/cortexm3/stm32w108/iar-cfg-coffee.icf
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else
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LDFLAGS+= -Wl,--section-start=.coffeefiles=$(COFFEE_ADDRESS)
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endif
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ifndef IAR
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ifdef COFFEE_ADDRESS
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COFFEE = 1
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endif
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# Default values for coffee section start.
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ifndef COFFEE_ADDRESS
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COFFEE_ADDRESS = 0x8010c00
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endif
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ifeq ($(COFFEE),1)
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CONTIKI_TARGET_SOURCEFILES += cfs-coffee.c cfs-coffee-arch.c
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CFLAGS += -DCOFFEE_ADDRESS=$(COFFEE_ADDRESS)
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#If $make invokation passed starting address use phony target to force synchronization of source to .coffeefiles section
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#Warning: recompilation will not be forced if the starting address is then dropped, with dire consequences:
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# -->Source that uses COFFEE_FILES and read macros for conditional compilation will be left hanging!
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@ -127,11 +145,24 @@ ifdef COFFEE_FILES #if files are defined force definition of COFF
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$(OBJECTDIR)/cfs-coffee-arch.o : coffee #cfs-coffee-arch uses COFFEE_FILES, COFFEE_ADDRESS
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$(OBJECTDIR)/cfs-coffee.o : coffee #core routine requires recompilation
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#endif
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#endif
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else
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# Coffee starts at the end of the flash, before NVM section.
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COFFEE_ADDRESS = 0x801F400
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endif
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LDFLAGS+= -Wl,--section-start=.coffee=$(COFFEE_ADDRESS)
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else #IAR
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ifeq ($(COFFEE),1)
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LDFLAGS+= --config $(CONTIKI_CPU)/hal/micro/cortexm3/stm32w108/iar-cfg-coffee.icf
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endif
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endif
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FLASHER = $(CONTIKI)/tools/stm32w/stm32w_flasher/linux/stm32w_flasher
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# Check if we are running under Windows
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@ -172,6 +203,7 @@ else
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SEDCOMMAND = sed -e '1s,\($(OBJECTDIR)\\$*\)\.o:,\1.o : ,g' -e '1!s,\($(OBJECTDIR)\\$*\)\.o:, ,g' -e 's,\\\([^ ]\),/\1,g' -e 's,$$, \\,' -e '$$s, \\$$,,' < $(@:.o=.P) > $(@:.o=.d)
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endif
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CUSTOM_RULE_C_TO_OBJECTDIR_O = 1
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$(OBJECTDIR)/%.o: %.c
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$(CC) $(CFLAGS) $< --dependencies=m $(@:.o=.P) -o $@
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@ -183,9 +215,26 @@ CUSTOM_RULE_C_TO_CO = 1
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$(CC) $(CFLAGS) -DAUTOSTART_ENABLE $< -o $@
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else #IAR
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CUSTOM_RULE_C_TO_CE = 1
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%.ce: %.c
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$(CC) $(CFLAGS) -fno-merge-constants -fno-function-sections -DAUTOSTART_ENABLE -c $< -o $@
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$(STRIP) --strip-unneeded -g -x $@
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CUSTOM_RULE_LINK = 1
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%.$(TARGET): %.co $(PROJECT_OBJECTFILES) $(PROJECT_LIBRARIES) contiki-$(TARGET).a
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.PHONY: symbols.c symbols.h
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ifdef CORE
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ifeq ($(wildcard $(CORE)),)
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${error $(CORE) doesn't exist}
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endif
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symbols.c:
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$(NM) $(CORE) | awk -f $(CONTIKI)/tools/mknmlist > symbols.c
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else
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symbols.c symbols.h:
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@$(CONTIKI)/tools/make-empty-symbols
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endif
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%.$(TARGET): %.co $(PROJECT_OBJECTFILES) $(PROJECT_LIBRARIES) contiki-$(TARGET).a $(OBJECTDIR)/symbols.o
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$(LD) $(LDFLAGS) $(TARGET_STARTFILES) ${filter-out %.a,$^} -Wl,-\( ${filter %.a,$^} $(TARGET_LIBFILES) -Wl,-\) -o $@
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@echo >> contiki-$(TARGET).map
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@$(SIZE) $(SIZEFLAGS) $@ >> contiki-$(TARGET).map
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141
cpu/stm32w108/elfloader-arch.c
Normal file
141
cpu/stm32w108/elfloader-arch.c
Normal file
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@ -0,0 +1,141 @@
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#include "contiki.h"
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#include "elfloader-arch.h"
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#include "cfs-coffee-arch.h"
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#if 1
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#include <stdio.h>
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#define PRINTF(...) printf(__VA_ARGS__)
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#else
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#define PRINTF(...) do {} while (0)
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#endif
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#define ELF32_R_TYPE(info) ((unsigned char)(info))
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/* Supported relocations */
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#define R_ARM_ABS32 2
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#define R_ARM_THM_CALL 10
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/* Adapted from elfloader-arm.c */
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static uint32_t datamemory_aligned[(ELFLOADER_DATAMEMORY_SIZE+3)/4]; //word aligned
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static uint8_t* datamemory = (uint8_t *)datamemory_aligned;
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VAR_AT_SEGMENT (static const uint16_t textmemory[ELFLOADER_TEXTMEMORY_SIZE/2],".elf_text") = {0}; //halfword aligned
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/*---------------------------------------------------------------------------*/
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void *
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elfloader_arch_allocate_ram(int size)
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{
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if(size > sizeof(datamemory_aligned)){
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PRINTF("RESERVED RAM TOO SMALL\n");
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}
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return datamemory;
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}
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/*---------------------------------------------------------------------------*/
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void *
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elfloader_arch_allocate_rom(int size)
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{
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if(size > sizeof(textmemory)){
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PRINTF("RESERVED FLASH TOO SMALL\n");
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}
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return (void *)textmemory;
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}
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/*---------------------------------------------------------------------------*/
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#define READSIZE sizeof(datamemory_aligned)
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void elfloader_arch_write_rom(int fd, unsigned short textoff, unsigned int size, char *mem)
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{
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int32u ptr;
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int nbytes;
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cfs_seek(fd, textoff, CFS_SEEK_SET);
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cfs_seek(fd, textoff, CFS_SEEK_SET);
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for(ptr = 0; ptr < size; ptr += READSIZE) {
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/* Read data from file into RAM. */
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nbytes = cfs_read(fd, (unsigned char *)datamemory, READSIZE);
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/* Write data to flash. */
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stm32w_flash_write((int32u)mem, datamemory, nbytes);
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}
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}
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/*---------------------------------------------------------------------------*/
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void elfloader_arch_relocate(int fd,
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unsigned int sectionoffset,
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char *sectionaddr,
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struct elf32_rela *rela, char *addr)
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{
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unsigned int type;
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type = ELF32_R_TYPE(rela->r_info);
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cfs_seek(fd, sectionoffset + rela->r_offset, CFS_SEEK_SET);
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/* PRINTF("elfloader_arch_relocate: type %d\n", type); */
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/* PRINTF("Addr: %p, Addend: %ld\n", addr, rela->r_addend); */
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switch(type) {
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case R_ARM_ABS32:
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{
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int32_t addend;
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cfs_read(fd, (char*)&addend, 4);
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addr += addend;
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cfs_seek(fd, -4, CFS_SEEK_CUR);
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cfs_write(fd,&addr,4);
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//elfloader_output_write_segment(output,(char*) &addr, 4);
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PRINTF("%p: addr: %p\n", sectionaddr +rela->r_offset,
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addr);
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}
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break;
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case R_ARM_THM_CALL:
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{
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uint16_t instr[2];
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int32_t offset;
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char *base;
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cfs_read(fd, (char*)instr, 4);
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cfs_seek(fd, -4, CFS_SEEK_CUR);
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/* Ignore the addend since it will be zero for calls to symbols,
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and I can't think of a case when doing a relative call to
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a non-symbol position */
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base = sectionaddr + (rela->r_offset + 4);
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if (((instr[1]) & 0xe800) == 0xe800) {
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/* BL or BLX */
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if (((uint32_t)addr) & 0x1) {
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/* BL */
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instr[1] |= 0x1800;
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} else {
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#if defined(__ARM_ARCH_4T__)
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return ELFLOADER_UNHANDLED_RELOC;
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#else
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/* BLX */
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instr[1] &= ~0x1800;
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instr[1] |= 0x0800;
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#endif
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}
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}
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/* Adjust address for BLX */
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if ((instr[1] & 0x1800) == 0x0800) {
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addr = (char*)((((uint32_t)addr) & 0xfffffffd)
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| (((uint32_t)base) & 0x00000002));
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}
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offset = addr - (sectionaddr + (rela->r_offset + 4));
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PRINTF("elfloader-arm.c: offset %d\n", (int)offset);
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if (offset < -(1<<22) || offset >= (1<<22)) {
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PRINTF("elfloader-arm.c: offset %d too large for relative call\n",
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(int)offset);
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}
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/* PRINTF("%p: %04x %04x offset: %d addr: %p\n", sectionaddr +rela->r_offset, instr[0], instr[1], (int)offset, addr); */
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instr[0] = (instr[0] & 0xf800) | ((offset>>12)&0x07ff);
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instr[1] = (instr[1] & 0xf800) | ((offset>>1)&0x07ff);
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cfs_write(fd,&instr,4);
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//elfloader_output_write_segment(output, (char*)instr, 4);
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/* PRINTF("cfs_write: %04x %04x\n",instr[0], instr[1]); */
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}
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break;
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default:
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PRINTF("elfloader-arm.c: unsupported relocation type %d\n", type);
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}
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}
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@ -13,7 +13,7 @@ GROUP(
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These are used by the startup in order to allocate stacks for the different modes.
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*/
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__Stack_Size = 0x400 ;
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__Stack_Size = 0x500 ;
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PROVIDE ( _Stack_Size = __Stack_Size ) ;
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_Minimum_Stack_Size = 0x500 ;
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/*
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this sends all unreferenced IRQHandlers to reset
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*/
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@ -114,13 +113,24 @@ SECTIONS
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*(.rodata*)
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*(.glue_7)
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*(.glue_7t)
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. = ALIGN(4);
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. = ALIGN(1024);
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*(.elf_text)
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. = ALIGN(1024);
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/*. = ALIGN(4);*/
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_etext = .;
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/* This is used by the startup in order to initialize the .data secion */
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/* This is used by the startup in order to initialize the .data section */
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_sidata = _etext;
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} >ROM_region
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.coffee 0x08010000 :
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{
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_coffee_start = ABSOLUTE(.);
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. = ALIGN(1024);
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*(.coffeefiles)
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. = ORIGIN(NVM_region) - _coffee_start;
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} > ROM_region = 0x00
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NVM (NOLOAD):
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{
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. = ALIGN(1024);
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. = ALIGN(4);
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} > FIB_region
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/*
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.FAT (NOLOAD):
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{
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KEEP(*(.FAT))
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} > FIB_region
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*/
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/* after that it's only debugging information. */
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.data : AT ( _sidata )
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{
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. = ALIGN(4);
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/* This is used by the startup in order to initialize the .data secion */
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/* This is used by the startup in order to initialize the .data section */
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_sdata = . ;
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*(.data)
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. = ALIGN(4);
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/* This is used by the startup in order to initialize the .data secion */
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_edata = . ;
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ASSERT(_sidata + SIZEOF(.data) < LOADADDR(.coffee), ".data section overflow in ROM");
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} >RAM_region
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/* This is the uninitialized data section */
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.bss :
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