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Date: Wed, 27 May 2009 07:16:27 GMT
From: tip-bot for Ingo Molnar <mingo@...e.hu>
To: linux-tip-commits@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, paulus@...ba.org, acme@...hat.com,
hpa@...or.com, mingo@...hat.com, jkacur@...hat.com,
a.p.zijlstra@...llo.nl, efault@....de, rostedt@...dmis.org,
mtosatti@...hat.com, tglx@...utronix.de,
cjashfor@...ux.vnet.ibm.com, mingo@...e.hu
Subject: [tip:perfcounters/core] perf report: Only load text symbols from kallsyms, fix
Commit-ID: af83632f98aefd1ae4d8ca3c7c285ccf6a7d3956
Gitweb: http://git.kernel.org/tip/af83632f98aefd1ae4d8ca3c7c285ccf6a7d3956
Author: Ingo Molnar <mingo@...e.hu>
AuthorDate: Wed, 27 May 2009 08:38:48 +0200
Committer: Ingo Molnar <mingo@...e.hu>
CommitDate: Wed, 27 May 2009 09:10:37 +0200
perf report: Only load text symbols from kallsyms, fix
- allow 'W' symbols too
- Convert initializations to C99 style
- whitespace cleanups
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@...hat.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: John Kacur <jkacur@...hat.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
LKML-Reference: <20090526222155.GJ4424@...stprotocols.net>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
Documentation/perf_counter/builtin-report.c | 30 ++++++++++++++++----------
1 files changed, 18 insertions(+), 12 deletions(-)
diff --git a/Documentation/perf_counter/builtin-report.c b/Documentation/perf_counter/builtin-report.c
index a55f15d..ed3da9d 100644
--- a/Documentation/perf_counter/builtin-report.c
+++ b/Documentation/perf_counter/builtin-report.c
@@ -384,21 +384,26 @@ int hex2long(char *ptr, unsigned long *long_val)
static int load_kallsyms(void)
{
+ struct rb_node *nd, *prevnd;
+ char *line = NULL;
+ FILE *file;
+ size_t n;
+
kernel_dso = dso__new("[kernel]");
if (kernel_dso == NULL)
return -1;
- FILE *file = fopen("/proc/kallsyms", "r");
-
+ file = fopen("/proc/kallsyms", "r");
if (file == NULL)
goto out_delete_dso;
- char *line = NULL;
- size_t n;
-
while (!feof(file)) {
unsigned long start;
- int line_len = getline(&line, &n, file);
+ struct symbol *sym;
+ int line_len, len;
+ char symbol_type;
+
+ line_len = getline(&line, &n, file);
if (line_len < 0)
break;
@@ -407,22 +412,22 @@ static int load_kallsyms(void)
line[--line_len] = '\0'; /* \n */
- int len = hex2long(line, &start);
-
+ len = hex2long(line, &start);
+
len++;
if (len + 2 >= line_len)
continue;
- char symbol_type = line[len];
+ symbol_type = toupper(line[len]);
/*
* We're interested only in code ('T'ext)
*/
- if (toupper(symbol_type) != 'T')
+ if (symbol_type != 'T' && symbol_type != 'W')
continue;
/*
* Well fix up the end later, when we have all sorted.
*/
- struct symbol *sym = symbol__new(start, 0xdead, line + len + 2);
+ sym = symbol__new(start, 0xdead, line + len + 2);
if (sym == NULL)
goto out_delete_dso;
@@ -434,7 +439,7 @@ static int load_kallsyms(void)
* Now that we have all sorted out, just set the ->end of all
* symbols
*/
- struct rb_node *nd, *prevnd = rb_first(&kernel_dso->syms);
+ prevnd = rb_first(&kernel_dso->syms);
if (prevnd == NULL)
goto out_delete_line;
@@ -450,6 +455,7 @@ static int load_kallsyms(void)
dsos__add(kernel_dso);
free(line);
fclose(file);
+
return 0;
out_delete_line:
--
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