Messages in this thread | | | Date | Mon, 30 Oct 2006 20:33:34 -0800 | From | Andrew Morton <> | Subject | Re: [ANNOUNCE] pahole and other DWARF2 utilities |
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On Mon, 30 Oct 2006 18:33:19 -0300 Arnaldo Carvalho de Melo <acme@mandriva.com> wrote:
> Hi, > > I've been working on some DWARF2 utilities and thought that it > is about time I announce it to the community, so that what is already > available can be used by people interested in reducing structure sizes > and otherwise taking advantage of the information available in the elf > sections of files compiled with 'gcc -g' or in the case of the kernel > with CONFIG_DEBUG_INFO enabled, so here it goes the description of said > tools: > > pahole: Poke-a-Hole is a tool to find out holes in structures, holes > being defined as the space between members of functions due to alignemnt > rules that could be used for new struct entries or to reorganize > existing structures to reduce its size, without more ado lets see what > that means: > > ... > > Further ideas on how to use the DWARF2 information include tools > that will show where inlines are being used, how much code is added by > inline functions,
It would be quite useful to be able to identify inlined functions which are good candidates for uninlining.
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