From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Date: Fri, 9 Jul 2010 09:29:11 +0000 (+0900)
Subject: perf probe: Support comp_dir to find an absolute source path
X-Git-Tag: v2.6.36-rc1~532^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6a330a3c8a648916b3c6bda79a78c38ac093af17;p=pandora-kernel.git

perf probe: Support comp_dir to find an absolute source path

Gcc generates DW_AT_comp_dir and stores relative source path if building kernel
without O= option. In that case, perf probe --line sometimes doesn't work
without --source option, because it tries to access relative source path.

This adds DW_AT_comp_dir support to perf probe for finding an absolute source
path when no --source option.

LKML-Reference: <4C36EBE7.3060802@hitachi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

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