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Message-ID: <202006091210.C139883AB@keescook>
Date: Tue, 9 Jun 2020 12:15:02 -0700
From: Kees Cook <keescook@...omium.org>
To: Alexander Popov <alex.popov@...ux.com>
Cc: Emese Revfy <re.emese@...il.com>,
Miguel Ojeda <miguel.ojeda.sandonis@...il.com>,
Masahiro Yamada <masahiroy@...nel.org>,
Michal Marek <michal.lkml@...kovi.net>,
Andrew Morton <akpm@...ux-foundation.org>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Thiago Jung Bauermann <bauerman@...ux.ibm.com>,
Luis Chamberlain <mcgrof@...nel.org>, Jessica Yu <jeyu@...nel.org>,
Sven Schnelle <svens@...ckframe.org>,
Iurii Zaikin <yzaikin@...gle.com>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>,
Vincenzo Frascino <vincenzo.frascino@....com>,
Thomas Gleixner <tglx@...utronix.de>,
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Naohiro Aota <naohiro.aota@....com>,
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Subject: Re: [PATCH 0/5] Improvements of the stackleak gcc plugin
On Thu, Jun 04, 2020 at 04:49:52PM +0300, Alexander Popov wrote:
> In this patch series I collected various improvements of the stackleak
> gcc plugin.
Thanks!
> Alexander Popov (5):
> gcc-plugins/stackleak: Exclude alloca() from the instrumentation logic
> gcc-plugins/stackleak: Use asm instrumentation to avoid useless
> register saving
These look like they might need tweaks (noted in their separate
replies).
> gcc-plugins/stackleak: Add 'verbose' plugin parameter
> gcc-plugins/stackleak: Don't instrument itself
If you wanted to reorder the series and move these first, I could take
these into my tree right away (they're logically separate from the other
fixes).
> gcc-plugins/stackleak: Don't instrument vgettimeofday.c in arm64 VDSO
This seems good -- though I'm curious about 32-bit ARM and the other
HAVE_GCC_PLUGINS architectures with vDSOs (which appears to be all of
them except um).
--
Kees Cook
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