Re: BFD: Warning: Writing section `.text' to huge (ie negative) file offset 0xa1ffff10

[Nigel Stephens <nigel@mips.com>]

zhuzhenhua wrote:
>
>>
>> I think the problem is not with the linker, but in your use of objcopy
>> to convert your ELF file to a raw binary file.
>>
>> 1) What arguments are you giving to mipsel-linux-objcopy?
> i use objcopy as follow(the brec_flash is elf file)
>     mipsel-linux-objcopy -O binary brec_flash brec_flash.bin
>>
>> 2) What is the output from mipsel-linux-objdump -h run on your
>> intermediate ELF object file?
> i use mipsel-linux-objdump -h brec_flash and get messages as follow
>
>
> brec_flash:     file format elf32-tradlittlemips
>
> Sections:
> Idx Name          Size      VMA       LMA       File off  Algn
>  0 .text         0000b140  72000000  72000000  00010000  2**4
>                  CONTENTS, ALLOC, LOAD, READONLY, CODE
>  1 .data         00001080  7200b140  7200b140  0001b140  2**4
>                  CONTENTS, ALLOC, LOAD, DATA
>  2 .sbss         00000010  7200c1c0  7200c1c0  0001c1c0  2**2
>                  ALLOC
>  3 .bss          000008a0  7200c1d0  7200c1d0  0001c1c0  2**4
>                  ALLOC
>  4 .reginfo      00000018  7200ca70  7200ca70  0001ca70  2**2
>                  CONTENTS, ALLOC, LOAD, READONLY, DATA, 
> LINK_ONCE_SAME_SIZE
>  5 .pdr          000011a0  00000000  00000000  0001ca88  2**2
>                  CONTENTS, READONLY
>  6 .mdebug.abi32 00000000  00000000  00000000  0001dc28  2**0
>                  CONTENTS, READONLY
>  7 .comment      000000ea  00000000  00000000  0001dc28  2**0
>                  CONTENTS, READONLY
>  8 .rodata       00000190  000000f0  000000f0  000000f0  2**4
>                  CONTENTS, ALLOC, LOAD, READONLY, DATA
>  9 .rodata.str1.4 000005fe  00000280  00000280  00000280  2**2
>                  CONTENTS, ALLOC, LOAD, READONLY, DATA

OK. I think that the final .rodata.str1.4 section is causing your 
problem because the offset between its load address and the other 
section is huge, causing "objcopy -O binary" to generate a huge file. 
This is a new section generated by gcc 3.x and above to hold mergeable 
constant data. Try changing the line in your linker script which (I'm 
guessing here) probably looks like this:

    *(.rodata)

to:

     *(.rodata) *(.rodata.*)

Nigel