[PATCH 1/2] perf annotate: handle ins parsing failures

[PATCH 1/2] perf annotate: handle ins parsing failures

[Rabin Vincent]

Don't use the ins's ->sncprintf() if the parsing failed.

For example, this fixes the display of "imul %edx".  Without this patch:

       |      imul   (null),(null)

After this patch:

       |      imul   %edx

Signed-off-by: Rabin Vincent <rabin@rab.in>
---
 tools/perf/util/annotate.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 79999ce..5ae428b 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -183,8 +183,9 @@ static int lock__parse(struct ins_operands *ops)
 	if (!ops->locked.ins->ops)
 		return 0;
 
-	if (ops->locked.ins->ops->parse)
-		ops->locked.ins->ops->parse(ops->locked.ops);
+	if (ops->locked.ins->ops->parse
+	    && ops->locked.ins->ops->parse(ops->locked.ops) < 0)
+		goto out_free_ops;
 
 	return 0;
 
@@ -531,8 +532,8 @@ static void disasm_line__init_ins(struct disasm_line *dl)
 	if (!dl->ins->ops)
 		return;
 
-	if (dl->ins->ops->parse)
-		dl->ins->ops->parse(&dl->ops);
+	if (dl->ins->ops->parse && dl->ins->ops->parse(&dl->ops) < 0)
+		dl->ins = NULL;
 }
 
 static int disasm_line__parse(char *line, char **namep, char **rawp)
-- 
2.1.4

[PATCH 2/2] perf annotate: fix memory leaks in LOCK handling

[Rabin Vincent]

The lock prefix handling fails to free the strdup()'d name as well as
the fields allocated by the instruction parsing.

Signed-off-by: Rabin Vincent <rabin@rab.in>
---
 tools/perf/util/annotate.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 5ae428b..53d11c1 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -177,6 +177,8 @@ static int lock__parse(struct ins_operands *ops)
 		goto out_free_ops;
 
 	ops->locked.ins = ins__find(name);
+	free(name);
+
 	if (ops->locked.ins == NULL)
 		goto out_free_ops;
 
@@ -209,6 +211,13 @@ static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
 
 static void lock__delete(struct ins_operands *ops)
 {
+	struct ins *ins = ops->locked.ins;
+
+	if (ins && ins->ops->free)
+		ins->ops->free(ops->locked.ops);
+	else
+		ins__delete(ops->locked.ops);
+
 	zfree(&ops->locked.ops);
 	zfree(&ops->target.raw);
 	zfree(&ops->target.name);
-- 
2.1.4

Re: [PATCH 1/2] perf annotate: handle ins parsing failures

[Arnaldo Carvalho de Melo]

Em Sun, Jan 18, 2015 at 08:00:20PM +0100, Rabin Vincent escreveu:
> Don't use the ins's ->sncprintf() if the parsing failed.
> 
> For example, this fixes the display of "imul %edx".  Without this patch:
> 
>        |      imul   (null),(null)
> 
> After this patch:
> 
>        |      imul   %edx

Thanks, both applied!

- Arnaldo
 
> Signed-off-by: Rabin Vincent <rabin@rab.in>
> ---
>  tools/perf/util/annotate.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
> index 79999ce..5ae428b 100644
> --- a/tools/perf/util/annotate.c
> +++ b/tools/perf/util/annotate.c
> @@ -183,8 +183,9 @@ static int lock__parse(struct ins_operands *ops)
>  	if (!ops->locked.ins->ops)
>  		return 0;
>  
> -	if (ops->locked.ins->ops->parse)
> -		ops->locked.ins->ops->parse(ops->locked.ops);
> +	if (ops->locked.ins->ops->parse
> +	    && ops->locked.ins->ops->parse(ops->locked.ops) < 0)
> +		goto out_free_ops;
>  
>  	return 0;
>  
> @@ -531,8 +532,8 @@ static void disasm_line__init_ins(struct disasm_line *dl)
>  	if (!dl->ins->ops)
>  		return;
>  
> -	if (dl->ins->ops->parse)
> -		dl->ins->ops->parse(&dl->ops);
> +	if (dl->ins->ops->parse && dl->ins->ops->parse(&dl->ops) < 0)
> +		dl->ins = NULL;
>  }
>  
>  static int disasm_line__parse(char *line, char **namep, char **rawp)
> -- 
> 2.1.4

[tip:perf/core] perf annotate: Handle ins parsing failures

[tip-bot for Rabin Vincent]

Commit-ID:  be81908c2289f405df75d2511ccf5da785945400
Gitweb:     http://git.kernel.org/tip/be81908c2289f405df75d2511ccf5da785945400
Author:     Rabin Vincent <rabin@rab.in>
AuthorDate: Sun, 18 Jan 2015 20:00:20 +0100
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 21 Jan 2015 10:05:17 -0300

perf annotate: Handle ins parsing failures

Don't use the ins's ->sncprintf() if the parsing failed.

For example, this fixes the display of "imul %edx".  Without this patch:

       |      imul   (null),(null)

After this patch:

       |      imul   %edx

Signed-off-by: Rabin Vincent <rabin@rab.in>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1421607621-15005-1-git-send-email-rabin@rab.in
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/annotate.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 79999ce..d5da1b8 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -183,8 +183,9 @@ static int lock__parse(struct ins_operands *ops)
 	if (!ops->locked.ins->ops)
 		return 0;
 
-	if (ops->locked.ins->ops->parse)
-		ops->locked.ins->ops->parse(ops->locked.ops);
+	if (ops->locked.ins->ops->parse &&
+	    ops->locked.ins->ops->parse(ops->locked.ops) < 0)
+		goto out_free_ops;
 
 	return 0;
 
@@ -531,8 +532,8 @@ static void disasm_line__init_ins(struct disasm_line *dl)
 	if (!dl->ins->ops)
 		return;
 
-	if (dl->ins->ops->parse)
-		dl->ins->ops->parse(&dl->ops);
+	if (dl->ins->ops->parse && dl->ins->ops->parse(&dl->ops) < 0)
+		dl->ins = NULL;
 }
 
 static int disasm_line__parse(char *line, char **namep, char **rawp)

[tip:perf/core] perf annotate: Fix memory leaks in LOCK handling

[tip-bot for Rabin Vincent]

Commit-ID:  0fb9f2aab738eec9dd9b929ed7d37bf744d2ac77
Gitweb:     http://git.kernel.org/tip/0fb9f2aab738eec9dd9b929ed7d37bf744d2ac77
Author:     Rabin Vincent <rabin@rab.in>
AuthorDate: Sun, 18 Jan 2015 20:00:21 +0100
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 21 Jan 2015 10:05:32 -0300

perf annotate: Fix memory leaks in LOCK handling

The lock prefix handling fails to free the strdup()'d name as well as
the fields allocated by the instruction parsing.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Cc: Paul Mackerras <paulus@samba.org>
Link: http://lkml.kernel.org/r/1421607621-15005-2-git-send-email-rabin@rab.in
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/annotate.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index d5da1b8..01bc4e2 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -177,6 +177,8 @@ static int lock__parse(struct ins_operands *ops)
 		goto out_free_ops;
 
 	ops->locked.ins = ins__find(name);
+	free(name);
+
 	if (ops->locked.ins == NULL)
 		goto out_free_ops;
 
@@ -209,6 +211,13 @@ static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
 
 static void lock__delete(struct ins_operands *ops)
 {
+	struct ins *ins = ops->locked.ins;
+
+	if (ins && ins->ops->free)
+		ins->ops->free(ops->locked.ops);
+	else
+		ins__delete(ops->locked.ops);
+
 	zfree(&ops->locked.ops);
 	zfree(&ops->target.raw);
 	zfree(&ops->target.name);