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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Apr 13, 2022 at 10:26:14AM +0100, Will Deacon wrote: > Hi Nathan, > > On Fri, Apr 08, 2022 at 11:37:24AM -0700, Nathan Chancellor wrote: > > On Fri, Apr 08, 2022 at 10:17:21AM -0700, Nathan Chancellor wrote: > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > > index 57c4c995965f..1fd16faa7f31 100644 > > --- a/arch/arm64/Kconfig > > +++ b/arch/arm64/Kconfig > > @@ -175,8 +175,6 @@ config ARM64 > > select HAVE_DEBUG_KMEMLEAK > > select HAVE_DMA_CONTIGUOUS > > select HAVE_DYNAMIC_FTRACE > > - select HAVE_DYNAMIC_FTRACE_WITH_REGS \ > > - if $(cc-option,-fpatchable-function-entry=2) > > select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY \ > > if DYNAMIC_FTRACE_WITH_REGS > > select HAVE_EFFICIENT_UNALIGNED_ACCESS > > @@ -228,6 +226,17 @@ config ARM64 > > help > > ARM 64-bit (AArch64) Linux support. > > > > +config CLANG_SUPPORTS_DYNAMIC_FTRACE_WITH_REGS > > + def_bool CC_IS_CLANG > > + # https://github.com/ClangBuiltLinux/linux/issues/1507 > > + depends on AS_IS_GNU || (AS_IS_LLVM && (LD_IS_LLD || LD_VERSION >= 23600)) > > + select HAVE_DYNAMIC_FTRACE_WITH_REGS > > + > > +config GCC_SUPPORTS_DYNAMIC_FTRACE_WITH_REGS > > + def_bool CC_IS_GCC > > + depends on $(cc-option,-fpatchable-function-entry=2) > > + select HAVE_DYNAMIC_FTRACE_WITH_REGS > > + > > config 64BIT > > def_bool y > > FWIW, I can confirm that this fixes the problem for me: > > Tested-by: Will Deacon > Do you plan to post as a separate patch? Yes, I will go ahead and type up a proper commit message and ship it along shortly, thanks for the feedback! Cheers, Nathan _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel