Hi,
On Thu, 28 Oct 2021, Christophe Leroy wrote:
> This series implements livepatch on PPC32.
>
> This is largely copied from what's done on PPC64.
>
> Christophe Leroy (5):
> livepatch: Fix build failure on 32 bits processors
> powerpc/ftrace: No need to read LR from stack in _mcount()
> powerpc/ftrace: Add module_trampoline_target() for PPC32
> powerpc/ftrace: Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on PPC32
> powerpc/ftrace: Add support for livepatch to PPC32
>
> arch/powerpc/Kconfig | 2 +-
> arch/powerpc/include/asm/livepatch.h | 4 +-
> arch/powerpc/kernel/module_32.c | 33 +++++
> arch/powerpc/kernel/trace/ftrace.c | 53 +++-----
> arch/powerpc/kernel/trace/ftrace_32.S | 187 ++++++++++++++++++++++++--
> kernel/livepatch/core.c | 4 +-
> 6 files changed, 230 insertions(+), 53 deletions(-)
thanks for the patch set!
I wondered whether the reliability of stack traces also applies to PPC32.
This was obviously resolved by accdd093f260 ("powerpc: Activate
HAVE_RELIABLE_STACKTRACE for all").
Did the patch set pass the selftests in
tools/testing/selftests/livepatch/ ?
Regards
Miroslav
