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From: tip-bot for Wang Nan <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: lizefan@huawei.com, namhyung@kernel.org, wangnan0@huawei.com,
	acme@redhat.com, linux-kernel@vger.kernel.org, hpa@zytor.com,
	mingo@kernel.org, tglx@linutronix.de
Subject: [tip:perf/core] perf tools: Don' t allow empty argument for field-separator
Date: Sun, 22 Mar 2015 03:14:03 -0700	[thread overview]
Message-ID: <tip-8b8ca6e15e392b366a7d69c6bf1abaae005f2b63@git.kernel.org> (raw)
In-Reply-To: <1426820272-23302-1-git-send-email-wangnan0@huawei.com>

Commit-ID:  8b8ca6e15e392b366a7d69c6bf1abaae005f2b63
Gitweb:     http://git.kernel.org/tip/8b8ca6e15e392b366a7d69c6bf1abaae005f2b63
Author:     Wang Nan <wangnan0@huawei.com>
AuthorDate: Fri, 20 Mar 2015 02:57:52 +0000
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 20 Mar 2015 17:49:51 -0300

perf tools: Don't allow empty argument for field-separator

Both 'perf diff' and 'perf mem' have 'field-separator' option, which
causes segfault if passed with empty string. This patch uses previously
introduced 'OPT_STRING_NOEMPTY' option macro to prevent fault.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: pi3orama@163.com
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Link: http://lkml.kernel.org/r/1426820272-23302-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-diff.c | 2 +-
 tools/perf/builtin-mem.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index f800fc9..473887d 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -802,7 +802,7 @@ static const struct option options[] = {
 	OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
 		   "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
 		   " Please refer the man page for the complete list."),
-	OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator",
+	OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
 		   "separator for columns, no spaces will be added between "
 		   "columns '.' is reserved."),
 	OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index 46c6931..b4dcf0b 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -286,7 +286,7 @@ int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
 		   "input file name"),
 	OPT_STRING('C', "cpu", &mem.cpu_list, "cpu",
 		   "list of cpus to profile"),
-	OPT_STRING('x', "field-separator", &symbol_conf.field_sep,
+	OPT_STRING_NOEMPTY('x', "field-separator", &symbol_conf.field_sep,
 		   "separator",
 		   "separator for columns, no spaces will be added"
 		   " between columns '.' is reserved."),

      parent reply	other threads:[~2015-03-22 10:14 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-20  2:57 [PATCH -tip] perf tools: Don't " Wang Nan
2015-03-20 13:18 ` Arnaldo Carvalho de Melo
2015-03-22 10:14 ` tip-bot for Wang Nan [this message]

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