linux-kernel - Re: [PATCH] trace: fix SKIP_STACK

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Message-ID: <alpine.DEB.2.21.1806201435430.255247@chino.kir.corp.google.com>
Date:   Wed, 20 Jun 2018 14:35:57 -0700 (PDT)
From:   David Rientjes <rientjes@...gle.com>
To:     Greg Thelen <gthelen@...gle.com>
cc:     Andi Kleen <andi@...stfloor.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        linux-kbuild@...r.kernel.org, akpm@...ux-foundation.org,
        Andi Kleen <ak@...ux.intel.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>
Subject: Re: [PATCH] trace: fix SKIP_STACK_VALIDATION=1 build

On Fri, 8 Jun 2018, Greg Thelen wrote:

> Non gcc-5 builds with CONFIG_STACK_VALIDATION=y and
> SKIP_STACK_VALIDATION=1 fail.
> Example output:
>   /bin/sh: init/.tmp_main.o: Permission denied
> 
> commit 96f60dfa5819 ("trace: Use -mcount-record for dynamic ftrace"),
> added a mismatched endif.  This causes cmd_objtool to get mistakenly
> set.
> 
> Relocate endif to balance the newly added -record-mcount check.
> 
> Fixes: 96f60dfa5819 ("trace: Use -mcount-record for dynamic ftrace")
> Signed-off-by: Greg Thelen <gthelen@...gle.com>

Tested-by: David Rientjes <rientjes@...gle.com>