| Message ID | cover.1640017960.git.christophe.leroy@csgroup.eu (mailing list archive) |
|---|---|
| Headers | show |
| Series | Implement livepatch on PPC32 and more | expand |
On Mon, 20 Dec 2021 16:37:58 +0000, Christophe Leroy wrote: > 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 > > [...] Patches 1 and 3-13 applied to powerpc/next. [01/13] livepatch: Fix build failure on 32 bits processors https://git.kernel.org/powerpc/c/2f293651eca3eacaeb56747dede31edace7329d2 [03/13] powerpc/module_32: Fix livepatching for RO modules https://git.kernel.org/powerpc/c/0c850965d6909d39fd69d6a3602bb62b48cad417 [04/13] powerpc/ftrace: Add support for livepatch to PPC32 https://git.kernel.org/powerpc/c/a4520b25276500f1abcfc55d24f1251b7b08eff6 [05/13] powerpc/ftrace: Don't save again LR in ftrace_regs_caller() on PPC32 https://git.kernel.org/powerpc/c/7875bc9b07cde868784195e215f4deaa0fa928a2 [06/13] powerpc/ftrace: Simplify PPC32's return_to_handler() https://git.kernel.org/powerpc/c/7bdb478c1d15cfd3a92db6331cb2d3dd3a8b9436 [07/13] powerpc/ftrace: Prepare PPC32's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS https://git.kernel.org/powerpc/c/d95bf254be5f74c1e4c8f7cb64e2e21b9cc91717 [08/13] powerpc/ftrace: Prepare PPC64's ftrace_caller() for CONFIG_DYNAMIC_FTRACE_WITH_ARGS https://git.kernel.org/powerpc/c/c75388a8ceffbf1bf72c61afe66a72e58aa20c74 [09/13] powerpc/ftrace: Implement CONFIG_DYNAMIC_FTRACE_WITH_ARGS https://git.kernel.org/powerpc/c/40b035efe288f42bbf4483236cde652584ccb64e [10/13] powerpc/ftrace: Refactor ftrace_{en/dis}able_ftrace_graph_caller https://git.kernel.org/powerpc/c/0c81ed5ed43863d313cf253b0ebada6ea2f17676 [11/13] powerpc/ftrace: directly call of function graph tracer by ftrace caller https://git.kernel.org/powerpc/c/830213786c498b0c488fedd2abc15a7ce442b42f [12/13] powerpc/ftrace: Prepare ftrace_64_mprofile.S for reuse by PPC32 https://git.kernel.org/powerpc/c/41315494beed087011f256b4f1439bb3d8236904 [13/13] powerpc/ftrace: Remove ftrace_32.S https://git.kernel.org/powerpc/c/4ee83a2cfbc46c13f2a08fe6d48dbcede53cdbf8 cheers
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@csgroup.eu> 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%)