linux-kernel - Re: [PATCH 1/2] perf symbols: Ignore mapping symbols on aarch64

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150115000305.GC12302@n2100.arm.linux.org.uk>
Date:	Thu, 15 Jan 2015 00:03:06 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Victor Kamensky <victor.kamensky@...aro.org>
Cc:	Will Deacon <will.deacon@....com>,
	Avi Kivity <avi@...udius-systems.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Anton Blanchard <anton@...ba.org>,
	David Ahern <dsahern@...il.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Jiri Olsa <jolsa@...hat.com>,
	Dave P Martin <Dave.Martin@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 1/2] perf symbols: Ignore mapping symbols on aarch64

On Wed, Jan 14, 2015 at 10:38:38AM -0800, Victor Kamensky wrote:
> >From fed6caab410ddcaf487ff23a3908eca129e50b89 Mon Sep 17 00:00:00 2001
> From: Victor Kamensky <victor.kamensky@...aro.org>
> Date: Wed, 14 Jan 2015 07:42:41 -0800
> Subject: [PATCH 3/3] perf symbols: improve abi compliance in arm mapping
>  symbols handling
> 
> Both Arm and Aarch64 ELF ABI allow mapping symbols be in from
> either "$d" or "$d.<any>". But current code that handles mapping
> symbols only deals with the first, dollar character and a single
> letter, case.
> 
> The patch adds handling of the second case with period
> followed by any characters.
> 
> Suggested-by: Will Deacon <will.deacon@....com>
> Signed-off-by: Victor Kamensky <victor.kamensky@...aro.org>

I wonder if it would make more sense to re-use the "is_arm_mapping_symbol"
thing which we have in kernel/module.c and scripts/kallsyms.c - it
seems silly to re-invent code which we already have to detect these
symbols.

-- 
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/