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| author | Jordan Niethe <jniethe5@gmail.com> | 2020-12-01 11:52:03 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-04 01:01:20 +1100 |
| commit | 1baa1f70ef77c4447628992ad50ab83213e2eb6c (patch) | |
| tree | dc73617903cec66860d6f44d6e528b24325c5843 /arch/powerpc/include/asm/bug.h | |
| parent | f3e90408019b353fd1fcd338091fb8d3c4a1c1a5 (diff) | |
| download | lwn-1baa1f70ef77c4447628992ad50ab83213e2eb6c.tar.gz lwn-1baa1f70ef77c4447628992ad50ab83213e2eb6c.zip | |
powerpc: Allow relative pointers in bug table entries
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
Diffstat (limited to 'arch/powerpc/include/asm/bug.h')
| -rw-r--r-- | arch/powerpc/include/asm/bug.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h index 338f36cd9934..ba0500872cce 100644 --- a/arch/powerpc/include/asm/bug.h +++ b/arch/powerpc/include/asm/bug.h @@ -12,7 +12,7 @@ #ifdef CONFIG_DEBUG_BUGVERBOSE .macro EMIT_BUG_ENTRY addr,file,line,flags .section __bug_table,"aw" -5001: PPC_LONG \addr, 5002f +5001: .4byte \addr - 5001b, 5002f - 5001b .short \line, \flags .org 5001b+BUG_ENTRY_SIZE .previous @@ -23,7 +23,7 @@ #else .macro EMIT_BUG_ENTRY addr,file,line,flags .section __bug_table,"aw" -5001: PPC_LONG \addr +5001: .4byte \addr - 5001b .short \flags .org 5001b+BUG_ENTRY_SIZE .previous @@ -36,14 +36,14 @@ #ifdef CONFIG_DEBUG_BUGVERBOSE #define _EMIT_BUG_ENTRY \ ".section __bug_table,\"aw\"\n" \ - "2:\t" PPC_LONG "1b, %0\n" \ + "2:\t.4byte 1b - 2b, %0 - 2b\n" \ "\t.short %1, %2\n" \ ".org 2b+%3\n" \ ".previous\n" #else #define _EMIT_BUG_ENTRY \ ".section __bug_table,\"aw\"\n" \ - "2:\t" PPC_LONG "1b\n" \ + "2:\t.4byte 1b - 2b\n" \ "\t.short %2\n" \ ".org 2b+%3\n" \ ".previous\n" |