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@gmail.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Irina Tirdea <irina.tirdea@gmail.com>
Cc: Pekka Enberg <penberg@kernel.org>
Link: http://lkml.kernel.org/r/1347116812-93646-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 51ef69c9841d..04eafd3939df 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;
 }