This series implements livepatch on PPC32 and implements
CONFIG_DYNAMIC_FTRACE_WITH_ARGS to simplify ftracing.
v2:
- Fix problem with strict modules RWX
- Convert powerpc to CONFIG_DYNAMIC_FTRACE_WITH_ARGS
- Convert function graph tracing to C
- Refactor PPC32 versus PPC64
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Christophe Leroy (13):
livepatch: Fix build failure on 32 bits processors
tracing: Fix selftest config check for function graph start up test
powerpc/module_32: Fix livepatching for RO modules
powerpc/ftrace: Add support for livepatch to PPC32
powerpc/ftrace: Don't save again LR in ftrace_regs_caller() on PPC32
powerpc/ftrace: Simplify PPC32's return_to_handler()
powerpc/ftrace: Prepare PPC32's ftrace_caller() for
CONFIG_DYNAMIC_FTRACE_WITH_ARGS
powerpc/ftrace: Prepare PPC64's ftrace_caller() for
CONFIG_DYNAMIC_FTRACE_WITH_ARGS
powerpc/ftrace: Implement CONFIG_DYNAMIC_FTRACE_WITH_ARGS
powerpc/ftrace: Refactor ftrace_{en/dis}able_ftrace_graph_caller
powerpc/ftrace: directly call of function graph tracer by ftrace
caller
powerpc/ftrace: Prepare ftrace_64_mprofile.S for reuse by PPC32
powerpc/ftrace: Remove ftrace_32.S
arch/powerpc/Kconfig | 7 +-
arch/powerpc/include/asm/ftrace.h | 62 +++---
arch/powerpc/include/asm/livepatch.h | 12 +-
arch/powerpc/include/asm/thread_info.h | 2 +-
arch/powerpc/kernel/asm-offsets.c | 2 +-
arch/powerpc/kernel/module_32.c | 44 +++--
arch/powerpc/kernel/trace/Makefile | 7 +-
arch/powerpc/kernel/trace/ftrace.c | 32 +--
arch/powerpc/kernel/trace/ftrace_32.S | 187 ------------------
.../trace/{ftrace_64.S => ftrace_low.S} | 14 ++
...ftrace_64_mprofile.S => ftrace_mprofile.S} | 158 +++++++--------
kernel/livepatch/core.c | 4 +-
kernel/trace/trace_selftest.c | 6 +-
13 files changed, 178 insertions(+), 359 deletions(-)
delete mode 100644 arch/powerpc/kernel/trace/ftrace_32.S
rename arch/powerpc/kernel/trace/{ftrace_64.S => ftrace_low.S} (85%)
rename arch/powerpc/kernel/trace/{ftrace_64_mprofile.S => ftrace_mprofile.S} (75%)
--
2.33.1
