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-rw-r--r--tools/perf/Makefile2
-rw-r--r--tools/perf/util/symbol.c21
2 files changed, 20 insertions, 3 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 7822b3d6baca..a5e9b876ca09 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -345,7 +345,7 @@ BUILTIN_OBJS += builtin-stat.o
BUILTIN_OBJS += builtin-top.o
PERFLIBS = $(LIB_FILE)
-EXTLIBS =
+EXTLIBS = -lbfd
#
# Platform specific tweaks
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index f40266b4845d..98aee922acca 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -6,9 +6,15 @@
#include <libelf.h>
#include <gelf.h>
#include <elf.h>
+#include <bfd.h>
const char *sym_hist_filter;
+#ifndef DMGL_PARAMS
+#define DMGL_PARAMS (1 << 0) /* Include function args */
+#define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */
+#endif
+
static struct symbol *symbol__new(u64 start, u64 len,
const char *name, unsigned int priv_size,
u64 obj_start, int verbose)
@@ -571,6 +577,8 @@ static int dso__load_sym(struct dso *self, int fd, const char *name,
NULL) != NULL);
elf_symtab__for_each_symbol(syms, nr_syms, index, sym) {
struct symbol *f;
+ const char *name;
+ char *demangled;
u64 obj_start;
struct section *section = NULL;
int is_label = elf_sym__is_label(&sym);
@@ -609,10 +617,19 @@ static int dso__load_sym(struct dso *self, int fd, const char *name,
goto out_elf_end;
}
}
+ /*
+ * We need to figure out if the object was created from C++ sources
+ * DWARF DW_compile_unit has this, but we don't always have access
+ * to it...
+ */
+ name = elf_sym__name(&sym, symstrs);
+ demangled = bfd_demangle(NULL, name, DMGL_PARAMS | DMGL_ANSI);
+ if (demangled != NULL)
+ name = demangled;
- f = symbol__new(sym.st_value, sym.st_size,
- elf_sym__name(&sym, symstrs),
+ f = symbol__new(sym.st_value, sym.st_size, name,
self->sym_priv_size, obj_start, verbose);
+ free(demangled);
if (!f)
goto out_elf_end;