Messages in this thread | | | From | Andy Lutomirski <> | Date | Fri, 6 Jun 2014 12:08:31 -0700 | Subject | Re: "." in vmlinux.lds.S |
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On Fri, Jun 6, 2014 at 11:53 AM, Hán Shěn (沈涵) <shenhan@google.com> wrote: > Yeah, the symbol "__end_rodata_hpage_align" is defined as absolute in > older binutils, the newer binutils making it relative seems > meaningless in this context.
What I mean is: what actually changes in the linker output when the symbol is relative?
--Andy
> > On Fri, Jun 6, 2014 at 11:40 AM, Andy Lutomirski <luto@amacapital.net> wrote: >> On 06/06/2014 10:08 AM, Hán Shěn (沈涵) wrote: >>> A gentle ping? >>> >>> On Tue, Jun 3, 2014 at 2:46 PM, Hán Shěn (沈涵) <shenhan@google.com> wrote: >>>> Hi we are trying to boot up a x86_64 chrome book using binutils 2.24 and >>>> kernel 3.8, but failed. >>>> >>>> After some triage work, we found that a 2-year-old binutil CL changed the >>>> interpretation of "." in linker script (short story: absolute -> relative, >>>> long story: https://sourceware.org/ml/binutils/2012-06/msg00155.html). >>>> >>>> After some further work, we are able to boot the kernel with a kernel patch >>>> pasted at EOM. I am curious, why the upstream kernel is never hit by this >>>> behavior? We enabled "CONFIG_DEBUG_RODATA", so we were hit, is this some >>>> macro not usually turned on? >> >> What does a section-relative symbol do? >> >> --Andy > > > > -- > Han Shen | Software Engineer | shenhan@google.com | +1-650-440-3330
-- Andy Lutomirski AMA Capital Management, LLC -- 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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