[tip:perf/core] perf annotate: Make a copy of filename for passing to basename

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Commit-ID:  bfd14b9a7231e7cf77520bca1848c40c6b6360ae
Gitweb:     http://git.kernel.org/tip/bfd14b9a7231e7cf77520bca1848c40c6b6360ae
Author:     David Ahern <dsahern@xxxxxxxxx>
AuthorDate: Sat, 8 Sep 2012 09:06:50 -0600
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Sat, 8 Sep 2012 17:14:43 -0300

perf annotate: Make a copy of filename for passing to basename

The basename function may modify the string passed to it, so the string
should not be marked const.

Signed-off-by: David Ahern <dsahern@xxxxxxxxx>
Acked-by: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Irina Tirdea <irina.tirdea@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1347116812-93646-2-git-send-email-dsahern@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/annotate.c |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 51ef69c..04eafd3 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -984,7 +984,8 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map, int evidx,
 			    int context)
 {
 	struct dso *dso = map->dso;
-	const char *filename = dso->long_name, *d_filename;
+	char *filename;
+	const char *d_filename;
 	struct annotation *notes = symbol__annotation(sym);
 	struct disasm_line *pos, *queue = NULL;
 	u64 start = map__rip_2objdump(map, sym->start);
@@ -992,6 +993,10 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map, int evidx,
 	int more = 0;
 	u64 len;
 
+	filename = strdup(dso->long_name);
+	if (!filename)
+		return -ENOMEM;
+
 	if (full_paths)
 		d_filename = filename;
 	else
@@ -1042,6 +1047,8 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map, int evidx,
 		}
 	}
 
+	free(filename);
+
 	return more;
 }
 
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