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powerpc: Allow relative pointers in bug table entries

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This enables GENERIC_BUG_RELATIVE_POINTERS on Power so that 32-bit
offsets are stored in the bug entries rather than 64-bit pointers.
While this doesn't save space for 32-bit machines, use it anyway so
there is only one code path.

Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201201005203.15210-1-jniethe5@gmail.com
This commit is contained in:
Jordan Niethe
2020-12-01 11:52:03 +11:00
committed by Michael Ellerman
parent f3e9040801
commit 1baa1f70ef
3 changed files with 10 additions and 6 deletions
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4
arch/powerpc/xmon/xmon.c
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@@ -1747,9 +1747,9 @@ static void print_bug_trap(struct pt_regs *regs)
#ifdef CONFIG_DEBUG_BUGVERBOSE
printf("kernel BUG at %s:%u!\n",
bug->file, bug->line);
(char *)bug + bug->file_disp, bug->line);
#else
printf("kernel BUG at %px!\n", (void *)bug->bug_addr);
printf("kernel BUG at %px!\n", (void *)bug + bug->bug_addr_disp);
#endif
#endif /* CONFIG_BUG */
}