[Bug 227093] powerpc64/pseries: Symbol table not relocated

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227093

Breno Leitao <breno.leitao at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|patch                       |

--- Comment #2 from Breno Leitao <breno.leitao at gmail.com> ---
Hi Nathan,

This patch shouldn't be considered to be applied. This is just a first
demonstration on how to solve this issue in a hackish way. We definitely need
to fix the debug symbol table.

Regarding your proposal, it didn't help either, since I still see the following
stack when I run [1]

0xe000000000318da0: at 0xc00000000067bd4c
0xe000000000318ed0: at .dump+0x2c
0xe000000000318f50: at .handler+0x3c
0xe000000000318fd0: at 0xc0000000006001e8
0xe000000000319070: at 0xc0000000005f1d60
0xe000000000319450: at 0xc0000000005f2588
0xe000000000319510: at 0xc0000000005f26f4
0xe0000000003195b0: at 0xc0000000009ca550
0xe000000000319770: at 0xc0000000009bf418
0xe000000000319810: user SC trap by 0x8100daef8: srr1=0x800000000000f032
            r1=0x3fffffffffffbd90 cr=0x44224044 xer=0x20000000 ctr=0x8100daef0
r2=0x810258e50

Looking further at the code, it seems that the linker_kernel_file->address is
not affecting the debug symbols st_value field at all, that explains why they
are not being relocated.

For now, I am trying to relocate the whole debug symbol table manually to see
if that fixes the problem.


[1] https://github.com/leitao/freebsd_modules/tree/master/dump_stack

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