Re: Out of order unwind entry warning

[Helge Deller <deller@gmx.de>]

On 10/31/2009 03:19 AM, John David Anglin wrote:
> On Fri, 30 Oct 2009, John David Anglin wrote:
>
>> There seems to a problem with readelf -u on 32-bit kernels.  The
>> address ranges are wrong.  The segment offset doesn't seem to be
>> being handled correctly.
>
> readelf -u uses the base address of the segment containing the
> .PARISC.unwind section.  On 64-bit kernels, the .PARISC.unwind
> section is in the same segment as the .text section, so the
> addresses print are correct.  However, on recent 32-bit kernels,
> this is not the case:
>
>   Section to Segment mapping:
>    Segment Sections...
>     00     .text .rodata .init.rodata __bug_table .pci_fixup .builtin_fw __ksymtab __ksymtab_gpl __kcrctab __kcrctab_gpl __ksymtab_strings __param
>     01     __ex_table .PARISC.unwind .data.read_mostly .data .got .data.vmpages .bss
>     02     .data.init_task .init.text .init.data .init.setup .initcall.init .con_initcall.init .exit.text
>     03
>
> .PARISC.unwind is readonly, so it shouldn't be in a W segment.


apply the patch in http://patchwork.kernel.org/patch/55797/ before testing.
.PARISC.unwind is then still in a RW segment, but at least you will get more reliable output.

Helge