Re: sh: inconsistent kallsyms data
From: Keith Owens (kaos_at_ocs.com.au)
Date: 12/31/04
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- In reply to: Paul Mundt: "sh: inconsistent kallsyms data"
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To: Paul Mundt <lethal@linux-sh.org> Date: Sat, 01 Jan 2005 05:15:43 +1100
On Fri, 31 Dec 2004 19:25:50 +0200,
Paul Mundt <lethal@linux-sh.org> wrote:
>Building 2.6.10 for sh results in inconsistent kallsyms data. Turning on
>CONFIG_KALLSYMS_ALL fixes it, as does CONFIG_KALLSYMS_EXTRA_PASS.
>
>The symbols that seem to be problematic between the second and third
>pass are all kallsyms special symbols. With only CONFIG_KALLSYMS set we
>see:
>
>--- System.map 2004-12-31 10:53:10.278567522 -0600
>+++ .tmp_System.map 2004-12-31 10:53:10.347558024 -0600
>@@ -6868,9 +6868,9 @@
> 8817c4d0 D kallsyms_addresses
> 88182660 D kallsyms_num_syms
> 88182670 D kallsyms_names
>-88190630 D kallsyms_markers
>-881906a0 D kallsyms_token_table
>-88190b50 D kallsyms_token_index
>+881906a0 D kallsyms_markers
>+88190710 D kallsyms_token_table
>+88190bc0 D kallsyms_token_index
> 88191000 D irq_desc
> 88191000 A __per_cpu_end
> 88191000 A __per_cpu_start
>
>So for some reason we have a 0x70 variance between these, and only
>these. Running with --all-symbols this seems to work fine.
I suspect the change in the kallsyms compression algorithm between
2.6.9 and 2.6.10. It added 3 new symbols and I am not convinced that
they are being processed correctly by scripts/kallsyms.c. Apply this
debug patch, tar .tmp_kallsyms* and send the tarball to me.
Index: 2.6.10-pristine/Makefile
===================================================================
--- 2.6.10-pristine.orig/Makefile 2004-12-25 10:25:19.000000000 +1100
+++ 2.6.10-pristine/Makefile 2005-01-01 05:13:25.714459901 +1100
@@ -680,7 +680,7 @@ define verify_kallsyms
$(Q)cmp -s System.map .tmp_System.map || \
(echo Inconsistent kallsyms data; \
echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \
- rm .tmp_kallsyms* ; /bin/false )
+ /bin/false )
endef
# Update vmlinux version before link
-
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- Previous message: pmarques_at_grupopie.com: "Re: sh: inconsistent kallsyms data"
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