2008-08-06 08:19:54 ELF SIZE
Pranay Upadhyay (INDIA)
Message: 60035
Hello sir,
The size of the elf file is 3410,446 bytes, which is generated by the bfin-elf-gcc.The problem I am facing that there is not too much flash memory size in my board.The flash memory size is 1 megabits. Can we reduce the size of elf file which suit in my application? Please guide me.
-Regards
Pranay
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2008-08-06 12:39:58 Re: ELF SIZE
Robin Getz (UNITED STATES)
Message: 60047
Pranay:
did you try strip? To find out what is consuming the space - "bfin-elf-readelf -S file_name"
-Robin
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2008-08-07 01:26:19 Re: ELF SIZE
Pranay Upadhyay (INDIA)
Message: 60065
Hello Robin sir,
Thanks, I tried from this command I found that sdram0 is taking more space 32a040 ,because in the file bf561m.ld I write the memory allocation for the sdram, like
MEMORY
{
MEM_SDRAM0(wx) : ORIGIN = 0x0000c400, LENGTH = 0x7FF3C00 /*ADDED BY PRANAY*/
MEM_L1_CODE : ORIGIN = 0xFFA00000, LENGTH = 0x4000
MEM_L1_CODE_CACHE : ORIGIN = 0xFFA10000, LENGTH = 0x4000
MEM_L1_SCRATCH : ORIGIN = 0xFFB00000, LENGTH = 0x1000
MEM_L1_DATA_B : ORIGIN = 0xFF900000, LENGTH = 0x8000
MEM_L1_DATA_A : ORIGIN = 0xFF800000, LENGTH = 0x8000
B_MEM_L1_CODE : ORIGIN = 0xFF600000, LENGTH = 0x4000
B_MEM_L1_CODE_CACHE : ORIGIN = 0xFF610000, LENGTH = 0x4000
B_MEM_L1_SCRATCH : ORIGIN = 0xFF700000, LENGTH = 0x1000
B_MEM_L1_DATA_B : ORIGIN = 0xFF500000, LENGTH = 0x8000
B_MEM_L1_DATA_A : ORIGIN = 0xFF400000, LENGTH = 0x8000
B_MEM_L1_STACK : ORIGIN = 0xFF501000, LENGTH = 0x8000 /* ADDED BY PRANAY*/
MEM_L2 : ORIGIN = 0xFEB00000, LENGTH = 0x20000
MEM_L2_SHARED : ORIGIN = 0xFEB20000, LENGTH = 0xC000 /* ADDED BY PRANAY*/
}
The memory map for the elf file for sdram is like this like this
[Nr] Name Type Addr Off Size ES Flg Lk Inf Al
[ 0] NULL 00000000 000000 000000 00 0 0 0
[ 1] .l2 PROGBITS feb00000 32b000 00023c 00 AX 0 0 4
[ 2] .l2_shared PROGBITS feb20000 32c000 000004 00 WA 0 0 4
[ 3] .init PROGBITS ffa00000 330000 000012 00 AX 0 0 1
[ 4] .b.text PROGBITS ff600000 32e000 000118 00 AX 0 0 2
[ 5] .text PROGBITS ffa00014 330014 001ddc 00 AX 0 0 4
[ 6] .fini PROGBITS ffa01df0 331df0 00000e 00 AX 0 0 1
[ 7] .rodata PROGBITS f800000 32f000 000008 00 A 0 0 4
[ 8] .eh_frame PROGBITS ff800008 32f008 000004 00 A 0 0 4
[ 9] .ctors PROGBITS ff80000c 32f00c 000008 00 WA 0 0 4
[10] .dtors PROGBITS ff800014 32f014 000008 00 WA 0 0 4
[11] .jcr PROGBITS ff80001c 32f01c 000004 00 WA 0 0 4
[12] .b.data PROGBITS ff400000 32d000 000004 00 WA 0 0 4
[13] .data PROGBITS ff800020 32f020 000824 00 WA 0 0 4
[14] .SDRAM0 PROGBITS 0000c400 000400 32a040 00 WA 0 0 4
[15] .b.bss PROGBITS ff400004 32d004 000004 00 WA 0 0 4
[16] .bss NOBITS ff800844 32f844 00006c 00 WA 0 0 4
[17] .comment PROGBITS 00000000 331dfe 0002b2 00 0 0 1
[18] .debug_aranges PROGBITS 00000000 3320b0 0002b8 00 0 0 8
[19] .debug_pubnames PROGBITS 00000000 332368 000651 00 0 0 1
[20] .debug_info PROGBITS 00000000 3329b9 0078f0 00 0 0 1
[21] .debug_abbrev PROGBITS 00000000 33a2a9 001675 00 0 0 1
[22] .debug_line PROGBITS 00000000 33b91e 0017f5 00 0 0 1
[23] .debug_frame PROGBITS 00000000 33d114 00062c 00 0 0 4
[24] .debug_str PROGBITS 00000000 33d740 000b8b 00 0 0 1
[25] .debug_loc PROGBITS 00000000 33e2cb 001b03 00 0 0 1
[26] .debug_ranges PROGBITS 00000000 33fdce 000088 00 0 0 1
[27] .shstrtab STRTAB 00000000 33fe56 0000f9 00 0 0 1
[28] .symtab SYMTAB 00000000 340400 000aa0 10 29 76 4
[29] .strtab STRTAB 00000000 340ea0 000bb2 00 0 0 1
Can we treduce the size of elf file.
-Regards
Pranay
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2008-08-08 10:59:08 Re: ELF SIZE
Mike Frysinger (UNITED STATES)
Message: 60176
the tools do what your code tells it to. you cant just create large buffers and then expect the tools to magically shrink things.
if the data going into SDRAM0 takes up 0x32a040 bytes, and that is too much, then you need to go through your code and shrink things yourself.
