Messages in this thread | | | From | Song Shuai <> | Date | Tue, 22 Nov 2022 10:10:46 +0000 | Subject | Re: [PATCH RESEND] riscv : select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY |
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Song Shuai <suagrfillet@gmail.com> 于2022年9月23日周五 10:03写道: > > riscv now uses -fpatchable-function-entry with dynamic ftrace after > the `afc76b8b8` commit, which means recordmcount shouldn't be called > to create the __mcount_loc section before the vmlinux linking. > > We should select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY to tell > Makefile not to run recordmcount. > Hi,Guo:
Can this patch squeeze into your v3 series ?
Thanks, Song > Signed-off-by: Song Shuai <suagrfillet@gmail.com> > --- > arch/riscv/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig > index c22f58155948..25db8cea876a 100644 > --- a/arch/riscv/Kconfig > +++ b/arch/riscv/Kconfig > @@ -246,6 +246,7 @@ config ARCH_RV64I > select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && MMU && $(cc-option,-fpatchable-function-entry=8) > select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE > select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL > + select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY if DYNAMIC_FTRACE > select HAVE_FUNCTION_GRAPH_TRACER > select HAVE_FUNCTION_TRACER if !XIP_KERNEL > select SWIOTLB if MMU > -- > 2.20.1 >
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