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| author |  Christophe Leroy <christophe.leroy@csgroup.eu>
| 2021-12-20 16:38:12 +0000 |
|---|---|---|
| committer |  Michael Ellerman <mpe@ellerman.id.au>
| 2022-02-07 21:03:10 +1100 |
| commit | a4520b25276500f1abcfc55d24f1251b7b08eff6 (patch) | |
| tree | 5301d30fe547434d5ec5e7eb5559c866722a3fa5 /arch/powerpc/kernel/asm-offsets.c | |
| parent | powerpc/module_32: Fix livepatching for RO modules (diff) | |
| download | linux-a4520b25276500f1abcfc55d24f1251b7b08eff6.tar.gz linux-a4520b25276500f1abcfc55d24f1251b7b08eff6.tar.bz2 linux-a4520b25276500f1abcfc55d24f1251b7b08eff6.zip | |
powerpc/ftrace: Add support for livepatch to PPC32
PPC64 needs some special logic to properly set up the TOC.
See commit 85baa095497f ("powerpc/livepatch: Add live patching support
on ppc64le") for details.
PPC32 doesn't have TOC so it doesn't need that logic, so adding
LIVEPATCH support is straight forward.
Add CONFIG_LIVEPATCH_64 and move livepatch stack logic into that item.
Livepatch sample modules all work.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/63cb094125b6a6038c65eeac2abaabbabe63addd.1640017960.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/asm-offsets.c')
| -rw-r--r-- | arch/powerpc/kernel/asm-offsets.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 7582f3e3a330..eec536aef83a 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -94,7 +94,7 @@ int main(void) OFFSET(TASK_CPU, task_struct, thread_info.cpu); #endif -#ifdef CONFIG_LIVEPATCH +#ifdef CONFIG_LIVEPATCH_64 OFFSET(TI_livepatch_sp, thread_info, livepatch_sp); #endif |