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Date: Fri, 18 Oct 2019 10:08:16 -0700
From: Sami Tolvanen <samitolvanen@...gle.com>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Will Deacon <will@...nel.org>, Catalin Marinas <catalin.marinas@....com>,
Ard Biesheuvel <ard.biesheuvel@...aro.org>, Dave Martin <Dave.Martin@....com>,
Kees Cook <keescook@...omium.org>, Laura Abbott <labbott@...hat.com>,
Mark Rutland <mark.rutland@....com>, Nick Desaulniers <ndesaulniers@...gle.com>,
clang-built-linux <clang-built-linux@...glegroups.com>,
Kernel Hardening <kernel-hardening@...ts.openwall.com>,
linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 09/18] trace: disable function graph tracing with SCS
On Fri, Oct 18, 2019 at 10:01 AM Steven Rostedt <rostedt@...dmis.org> wrote:
> NAK, Put this in the arch code.
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 41a9b4257b72..d68339987604 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -149,7 +149,7 @@ config ARM64
> select HAVE_FTRACE_MCOUNT_RECORD
> select HAVE_FUNCTION_TRACER
> select HAVE_FUNCTION_ERROR_INJECTION
> - select HAVE_FUNCTION_GRAPH_TRACER
> + select HAVE_FUNCTION_GRAPH_TRACER if ROP_PROTECTION_NONE
> select HAVE_GCC_PLUGINS
> select HAVE_HW_BREAKPOINT if PERF_EVENTS
> select HAVE_IRQ_TIME_ACCOUNTING
Thanks, Steven. I'll fix this and kretprobes in v2.
Sami
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