linux-kernel - Re: [PATCH 1/2] perfcounters: Print the filename:line for annotated colored lines

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Date:	Sat, 13 Jun 2009 13:12:48 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mike Galbraith <efault@....de>,
	Paul Mackerras <paulus@...ba.org>
Subject: Re: [PATCH 1/2] perfcounters: Print the filename:line for
	annotated colored lines


hm, -l doesnt work so well if a user-space binary (in this case the 
'git' binary of the Git project) is profiled:

aldebaran:~/git> perf record -f ./git gc
Counting objects: 1148, done.
Delta compression using up to 16 threads.
Compressing objects: 100% (450/450), done.
Writing objects: 100% (1148/1148), done.
Total 1148 (delta 690), reused 1148 (delta 690)
[ perf record: Captured and wrote 1.649 MB perf.data (~72032 samples) ]

aldebaran:~/git> perf annotate -l lookup_object

addr2line: 'vmlinux': No such file
addr2line: 'vmlinux': No such file
addr2line: 'vmlinux': No such file
addr2line: 'vmlinux': No such file
addr2line: 'vmlinux': No such file
addr2line: 'vmlinux': No such file
addr2line: 'vmlinux': No such file
addr2line: 'vmlinux': No such file
addr2line: 'vmlinux': No such file
addr2line: 'vmlinux': No such file
addr2line: 'vmlinux': No such file
addr2line: 'vmlinux': No such file

------------------------------------------------
 Percent |      Source code & Disassembly of /home/mingo/git/git-update-server-info
------------------------------------------------
         :
         :      /home/mingo/git/git-update-server-info:     file format elf64-x86-64
         :
         :
         :      Disassembly of section .text:
         :
         :      00000000004160f0 <lookup_object>:
         :              memcpy(&i, sha1, sizeof(unsigned int));
         :              return (int)(i % obj_hash_size);
         :      }

	Ingo
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