Unverified Commit b546d636 authored by Song Shuai's avatar Song Shuai Committed by Palmer Dabbelt
Browse files

riscv: select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY 

In commit afc76b8b ("riscv: Using PATCHABLE_FUNCTION_ENTRY instead
of MCOUNT") RISC-V added support for -fpatchable-function-entry, which
removes the need for recordmcount.

Select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY to tell the build
system not to run recordmcount.

Link: https://lore.kernel.org/linux-riscv/CAAYs2=j3Eak9vU6xbAw0zPuoh00rh8v5C2U3fePkokZFibWs2g@mail.gmail.com/T/#t
Link: https://lore.kernel.org/linux-riscv/Y4jtfrJt+%2FQ5nMOz@spud/


Signed-off-by: default avatarSong Shuai <suagrfillet@gmail.com>
Tested-by: default avatarGuo Ren <guoren@kernel.org>
Signed-off-by: default avatarGuo Ren <guoren@kernel.org>
Acked-by: default avatarBjörn Töpel <bjorn@rivosinc.com>
Link: https://lore.kernel.org/r/20231130121531.1178502-2-bjorn@kernel.org


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent b85ea95d

arch/riscv/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -68,6 +68,7 @@ config RISCV 
	select CPU_PM if CPU_IDLE || HIBERNATION

	select EDAC_SUPPORT

	select FRAME_POINTER if PERF_EVENTS || (FUNCTION_TRACER && !DYNAMIC_FTRACE)

	select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY if DYNAMIC_FTRACE

	select GENERIC_ARCH_TOPOLOGY

	select GENERIC_ATOMIC64 if !64BIT

	select GENERIC_CLOCKEVENTS_BROADCAST if SMP