lkml.org 
[lkml]   [2022]   [Nov]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH RESEND] riscv : select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
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
>

\
 
 \ /
  Last update: 2022-11-22 11:11    [W:0.204 / U:0.108 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site