Messages in this thread | | | Date | Mon, 3 Jul 2006 16:31:19 +0900 | From | "Magnus Damm" <> | Subject | Re: .exit.text section in vmlinux |
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On 7/1/06, Chase Venters <chase.venters@clientec.com> wrote: > On Fri, 30 Jun 2006, Magnus Damm wrote: > > The linker script arch/i386/kernel/vmlinux.lds.S mentions the following: > > > > /* .exit.text is discard at runtime, not link time, to deal with references > > from .altinstructions and .eh_frame */ > > .altinstructions is for alternatives code (code that is rewritten at > runtime based on some factor such as UP-vs-SMP). .eh_frame has call > framing information used for unwinding. I think it's copied into the > vsyscall page (not entirely familiar with this mechanism though).
Thanks for clarifying.
> > The text above seems to answer my question, but I cannot say I fully > > understand the comment. I'd appreciate if someone could explain a bit > > more if possible. > > > > Ok, so the section should be discarded at runtime. Sounds ok. But > > where in the code is this section discarded? -ENOSYS? > > When you see "Freeing unused kernel memory", the memory between > __init_begin and __init_end (as marked in vmlinux.ld.S) is released. See > arch-specific mm/init.c.
Oh, I see. It looks like things are working as expected then. Thank you!
Cheers,
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