linux-kernel - Re: [PATCH] arm64: Fix build with CC=clang, CONFIG_FTRACE=y and CONFIG_STACK

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Date:   Mon,  9 Jan 2023 17:45:28 +0000
From:   Will Deacon <will@...nel.org>
To:     James Clark <james.clark@....com>,
        linux-arm-kernel@...ts.infradead.org, mark.rutland@....com
Cc:     catalin.marinas@....com, kernel-team@...roid.com,
        Will Deacon <will@...nel.org>, Tom Rix <trix@...hat.com>,
        Florent Revest <revest@...omium.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        "Masami Hiramatsu (Google)" <mhiramat@...nel.org>,
        "Steven Rostedt (Google)" <rostedt@...dmis.org>,
        linux-kernel@...r.kernel.org,
        Nathan Chancellor <nathan@...nel.org>, llvm@...ts.linux.dev
Subject: Re: [PATCH] arm64: Fix build with CC=clang, CONFIG_FTRACE=y and CONFIG_STACK_TRACER=y

On Mon, 9 Jan 2023 12:27:43 +0000, James Clark wrote:
> commit 45bd8951806e ("arm64: Improve HAVE_DYNAMIC_FTRACE_WITH_REGS
> selection for clang") fixed the build with the above combination by
> splitting HAVE_DYNAMIC_FTRACE_WITH_REGS into separate checks for
> Clang and GCC.
> 
> commit 26299b3f6ba2 ("ftrace: arm64: move from REGS to ARGS") added the
> GCC only check "-fpatchable-function-entry=2" back in unconditionally
> which breaks the build.
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64: Fix build with CC=clang, CONFIG_FTRACE=y and CONFIG_STACK_TRACER=y
      https://git.kernel.org/arm64/c/68a63a412d18

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev