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Message-Id: <1411762787-26113-11-git-send-email-acme@kernel.org>
Date: Fri, 26 Sep 2014 17:19:47 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...hat.com>,
Jiri Olsa <jolsa@...nel.org>,
Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
David Ahern <dsahern@...il.com>,
Milian Wolff <mail@...ianw.de>,
Namhyung Kim <namhyung.kim@....com>,
Namhyung Kim <namhyung@...nel.org>,
Paul Mackerras <paulus@...ba.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 10/10] perf tools: Fix line number in the config file error message
From: Jiri Olsa <jolsa@...hat.com>
If we fail to parse the config file within the callback function,
the line number counter 'could be' already on the next line.
This results in wrong line number report like:
$ cat ~/.perfconfig
[call-graph]
sort-key = krava
$ perf record ls
Fatal: bad config file line 3 in /home/jolsa/.perfconfig
Fixing this by saving the current line number for this case.
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Acked-by: Namhyung Kim <namhyung@...nel.org>
Cc: Corey Ashford <cjashfor@...ux.vnet.ibm.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Milian Wolff <mail@...ianw.de>
Cc: Namhyung Kim <namhyung.kim@....com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/20140923115656.GC2979@krava.brq.redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/util/config.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 953512ed72ba..57ff826f150b 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -222,7 +222,8 @@ static int perf_parse_file(config_fn_t fn, void *data)
const unsigned char *bomptr = utf8_bom;
for (;;) {
- int c = get_next_char();
+ int line, c = get_next_char();
+
if (bomptr && *bomptr) {
/* We are at the file beginning; skip UTF8-encoded BOM
* if present. Sane editors won't put this in on their
@@ -261,8 +262,16 @@ static int perf_parse_file(config_fn_t fn, void *data)
if (!isalpha(c))
break;
var[baselen] = tolower(c);
- if (get_value(fn, data, var, baselen+1) < 0)
+
+ /*
+ * The get_value function might or might not reach the '\n',
+ * so saving the current line number for error reporting.
+ */
+ line = config_linenr;
+ if (get_value(fn, data, var, baselen+1) < 0) {
+ config_linenr = line;
break;
+ }
}
die("bad config file line %d in %s", config_linenr, config_file_name);
}
--
1.9.3
--
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