Messages in this thread | | | From | Denys Vlasenko <> | Subject | Re: [PATCH 0/4] build system: section garbage collection for vmlinux | Date | Wed, 12 Sep 2007 21:19:57 +0100 |
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On Tuesday 11 September 2007 22:03, Andi Kleen wrote: > Denys Vlasenko <vda.linux@googlemail.com> writes: > > > > text data bss dec hex filename > > 5159478 1005139 406784 6571401 644589 linux-2.6.23-rc4.org/vmlinux > > 5131822 996090 401439 6529351 63a147 linux-2.6.23-rc4.gc/vmlinux > > > > In this particular case, 402 objects were discarded, saving 42 kb. > > I wonder how many of those are 100% unused on all configurations? > That could be an useful janitor task to clean up
With CONFIG_DISCARD_UNUSED_SECTIONS=y ld will helpfully flood you with the list of discarded stuff. I pass --print-gc-sections to it. -- vda - 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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