Messages in this thread | | | Subject | Re: CONFIG_FRAME_POINTER [was [PATCH] x86: BUILD_IRQ say .text] | From | Benjamin Herrenschmidt <> | Date | Sat, 26 Jul 2008 07:46:13 +1000 |
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On Fri, 2008-07-25 at 19:45 +0100, Hugh Dickins wrote: > > I've Cc'ed Ben and linuxppc-dev because I wonder if they're aware > that several options (I got it from LATENCYTOP, but I think LOCKDEP > and FTRACE and some others) are doing a "select FRAME_POINTER", > which forces CONFIG_FRAME_POINTER=y on PowerPC, even though > FRAME_POINTER is not an option offered on PowerPC. The > resulting kernels appear to run okay, but I was surprised.
Because the option just does nothing for us ? :-) We always have frame pointers on powerpc except in some case for leaf functions. I don't know if the option has any actual effect on the later, but I don't think we have a case where doing either way would break things.
Cheers, Ben.
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