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    SubjectRe: [PATCH 3/4] perf symbols: Record the build_ids of kernel modules too
    Em Wed, Nov 18, 2009 at 02:29:10PM -0800, Roland McGrath escreveu:
    > > + snprintf(name, sizeof(name),
    > > + "/sys/module/%s/notes/.note.gnu.build-id", line);
    >
    > The arch linker script for .ko's is free to fold notes into a single
    > section with a different name or suchlike, and maybe future ones will. So
    > it's not pedantically kosher to assume the name of the section rather than
    > just looking at all the /sys/module/%s/notes/* files present until you find
    > NT_GNU_BUILD_ID. (In practice there is probably only ever one file there
    > to look at, but you never know.)

    Ahah! That seems to explain why the kernel one is "notes" while the
    modules's are ".note.gnu.build-id"! I'll cook a super-dupa-careful
    cooker follow on patch to get that right, thanks again!

    - Arnaldo


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