Re: [GIT PULL] x86/kaslr for v3.14

From: Linus Torvalds
Date: Tue Jan 28 2014 - 12:35:51 EST


On Tue, Jan 28, 2014 at 9:24 AM, Richard Weinberger <richard@xxxxxx> wrote:
>
> Hmm, my gdb does not like that notion.
>
> (gdb) list schedule+0x45
> Function "schedule+0x45" not defined.

I don't have a debug build, so maybe it's something specific to gdb
actually seeing type information and then being confused..

Can you do "x/10i schedule+0x45" because that definitely works for me.
But I literally detest DBUG_INFO builds, because it's useless crap.
99% of everything I debug is from people reporting problems on their
kernels, so it's not like my local debug info would match that anyway.

Anyway, if it's a type information thing due to DEBUG_INFO that
confuses gdb and makes it think that the "+0x45" part doesn't make
sense, you may need to add a cast to get gdb to ignore the type
information. IOW, does

list (void *)schedule + 0x45

work for you?

I happen to have gdb-7.6.50 here that I tested with, but I've used
"symbol+offset" forever afaik, so it's definitely not something new.

Linus
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