Re: Re: Re: Re: Re: [PATCH -tip v3 00/23] kprobes: introduce NOKPROBE_SYMBOL() and general cleaning of kprobe blacklist

(2013/11/30 22:46), Ingo Molnar wrote:

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Anyway, to fix all of them, I think we need file-based blacklist
especially for assembler symbols.

assembler symbols shouldn't be particular hard either, just put them 
into the noprobes section.

Would you mean .kprobes.text? Hmm, I hope not to use it anymore, but 
yeah, bugfix is more important. Agreed.

No, why not put the symbol address into the 'blacklist' section, 
within the asm file? We fill out exception table entries in .S files 
as well, see the _ASM_EXTABLE() macro, it's possible to do all that. 

Oh! I got it. Thank you for the pointer! :)

It needs not a CPP macro but an assembly macro.

OK, I'll try that.

Thanks again,

-- 
Masami HIRAMATSU
IT Management Research Dept. Linux Technology Center
Hitachi, Ltd., Yokohama Research Laboratory
E-mail: masami.hiramatsu.pt@hitachi.com