Messages in this thread | | | Date | Mon, 2 Jan 2006 22:59:04 -0500 | From | Daniel Jacobowitz <> | Subject | Re: [patch 00/2] improve .text size on gcc 4.0 and newer compilers |
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On Mon, Jan 02, 2006 at 10:23:35PM +0000, Russell King wrote: > On Mon, Jan 02, 2006 at 07:51:32PM +0100, Arjan van de Ven wrote: > > On Mon, 2006-01-02 at 19:44 +0100, Krzysztof Halasa wrote: > > > Ingo Molnar <mingo@elte.hu> writes: > > > > > > > what is the 'deeper problem'? I believe it is a combination of two > > > > (well-known) things: > > > > > > > > 1) people add 'inline' too easily > > > > 2) we default to 'always inline' > > > > > > For example, I add "inline" for static functions which are only called > > > from one place. > > > > you know what? gcc inlines those automatic even without you typing > > "inline". (esp if you have unit-at-a-time enabled) > > Rubbish it will. > > static void fn1(void *f) > { > } > > void fn2(void *f) > { > fn1(f); > } > > on ARM produces:
On 3.4, 4.0, and 4.1 you only need -O for this (I just checked both x86 and ARM compilers). I believe this came in with unit-at-a-time, as Arjan said - which was GCC 3.4.
-- Daniel Jacobowitz CodeSourcery - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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