Dear Nick,
Thanks for your advice,It works well according to your advice.
But how to remove the unused functions in system library(maybe compile the 
system library without --funciton-sections) when linking program.

Best regards.

2008-06-02 



jian 



发件人: Nick Clifton 
发送时间: 2008-06-02  15:08:08 
收件人: jian 
抄送: bug-binutils 
主题: Re: Ask for helping about LD linker 
 
Hi Jian,

> Excuse me,I don't know how to  remove unused functions and variable when 
> linking ELF.

Compile your program with --function-sections.  Link your program with 
-Wl,--gc-sections.

Note: This feature is not implemented for all targets.  If it does not 
work for you then it may be that the target you are working with is one 
of the unsupported targets.

Cheers
   Nick
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