dataflash_at91sam9261ek.map

针对at91系列的arm的启动代码的编写有一个整体的说明

Archive member included because of file (symbol)

/data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(div.o)
                              dataflash.o (div)
/data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(memcpy.o)
                              at91sam9261ek.o (memcpy)
/data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(memset.o)
                              at91sam9261ek.o (memset)
/data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_divsi3.o)
                              /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(div.o) (__divsi3)
/data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_modsi3.o)
                              /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(div.o) (__modsi3)
/data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_dvmd_tls.o)
                              /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_divsi3.o) (__div0)

Memory Configuration

Name             Origin             Length             Attributes
*default*        0x00000000         0xffffffff

Linker script and memory map

LOAD /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a
LOAD /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a
LOAD crt0_gnu.o
LOAD at91sam9261ek.o
LOAD main.o
LOAD gpio.o
LOAD pmc.o
LOAD debug.o
LOAD sdramc.o
LOAD dataflash.o
LOAD /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a
LOAD /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a
LOAD /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a
                0x00000000                . = ALIGN (0x4)

.text           0x00300000      0xe64
                0x00300000                _stext = .
 *(.text)
 .text          0x00300000      0x100 crt0_gnu.o
                0x00300000                reset
 .text          0x00300100      0x150 at91sam9261ek.o
                0x00300218                df_hw_init
                0x00300100                hw_init
                0x003001e0                sdramc_hw_init
 .text          0x00300250       0x2c main.o
                0x00300250                main
 .text          0x0030027c      0x248 gpio.o
                0x0030027c                pio_set_value
                0x003002b8                pio_get_value
                0x00300304                pio_setup
 .text          0x003004c4       0xd4 pmc.o
                0x003004c4                pmc_cfg_plla
                0x00300524                pmc_cfg_mck
                0x003004f4                pmc_cfg_pllb
                0x00300554                pmc_cfg_pck
 .text          0x00300598      0x13c sdramc.o
                0x00300598                sdram_init
 .text          0x003006d4      0x408 dataflash.o
                0x00300894                load_df
                0x003006d4                df_send_command
 .text          0x00300adc       0x70 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(div.o)
                0x00300adc                div
 .text          0x00300b4c       0x90 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(memcpy.o)
                0x00300b4c                memcpy
 .text          0x00300bdc       0x78 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(memset.o)
                0x00300bdc                memset
 .text          0x00300c54      0x128 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_divsi3.o)
                0x00300c54                __divsi3
 .text          0x00300d7c       0xe4 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_modsi3.o)
                0x00300d7c                __modsi3
 .text          0x00300e60        0x4 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_dvmd_tls.o)
                0x00300e60                __div0
                0x00300e64                _etext = .

.glue_7         0x00300e64        0x0

.glue_7t        0x00300e64        0x0
                0x00300e64                . = ALIGN (0x4)

.rodata         0x00300e64      0x1b8
 *(.rodata)
 .rodata        0x00300e64      0x1b8 at91sam9261ek.o

.rodata.str1.4  0x0030101c       0x5e
 .rodata.str1.4
                0x0030101c       0x5e at91sam9261ek.o
                                 0x64 (size before relaxing)
                0x0030107c                . = ALIGN (0x4)

.data           0x0030107c        0x0
                0x0030107c                _sdata = .
 *(.data)
                0x0030107c                _edata = .
                0x0030107c                . = ALIGN (0x4)

.bss            0x0030107c        0x0
                0x0030107c                __bss_start__ = .
 *(.bss)
                0x0030107c                __bss_end__ = .
                0x0030107c                end = .
Address of section .text set to 0x300000
OUTPUT(dataflash_at91sam9261ek.elf elf32-littlearm)
                0x0030107c                __start_start = ALIGN (0x1)

start           0x00000000        0x0
                0x00000000                __stop_start = .

.debug_line     0x00000000      0x97f
 .debug_line    0x00000000       0x79 crt0_gnu.o
 .debug_line    0x00000079       0xce at91sam9261ek.o
 .debug_line    0x00000147       0x41 main.o
 .debug_line    0x00000188      0x15d gpio.o
 .debug_line    0x000002e5       0x79 pmc.o
 .debug_line    0x0000035e       0x1a debug.o
 .debug_line    0x00000378       0xb5 sdramc.o
 .debug_line    0x0000042d      0x1aa dataflash.o
 .debug_line    0x000005d7       0xc0 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(div.o)
 .debug_line    0x00000697       0xc9 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(memcpy.o)
 .debug_line    0x00000760       0xc7 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(memset.o)
 .debug_line    0x00000827       0x89 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_divsi3.o)
 .debug_line    0x000008b0       0x75 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_modsi3.o)
 .debug_line    0x00000925       0x5a /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_dvmd_tls.o)

.debug_info     0x00000000     0x1b6b
 .debug_info    0x00000000       0x8f crt0_gnu.o
 .debug_info    0x0000008f      0x1fd at91sam9261ek.o
 .debug_info    0x0000028c       0x59 main.o
 .debug_info    0x000002e5      0x83b gpio.o
 .debug_info    0x00000b20      0x252 pmc.o
 .debug_info    0x00000d72      0x1d9 sdramc.o
 .debug_info    0x00000f4b      0x7e1 dataflash.o
 .debug_info    0x0000172c       0xe5 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(div.o)
 .debug_info    0x00001811       0xfc /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(memcpy.o)
 .debug_info    0x0000190d      0x102 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/../../../../arm-elf/lib/libc.a(memset.o)
 .debug_info    0x00001a0f       0x74 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_divsi3.o)
 .debug_info    0x00001a83       0x74 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_modsi3.o)
 .debug_info    0x00001af7       0x74 /data/80/users/nlacress/gnuarm-3.4.3/bin/../lib/gcc/arm-elf/3.4.3/libgcc.a(_dvmd_tls.o)

.debug_abbrev   0x00000000      0x8b4
 .debug_abbrev  0x00000000       0x14 crt0_gnu.o
 .debug_abbrev  0x00000014      0x10e at91sam9261ek.o
 .debug_abbrev  0x00000122       0x41 main.o
 .debug_abbrev  0x00000163      0x17f gpio.o
 .debug_abbrev  0x000002e2       0xc1 pmc.o
 .debug_abbrev  0x000003a3        0x1 debug.o
 .debug_abbrev  0x000003a4       0xb5 sdramc.o