---

yaml
---
r: 182428
b: refs/heads/master
c: fd1d908
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a19afe46412452fef89cc623873a8931b3685944
+refs/heads/master: fd1d908c543fbdfae82839d24b0872c542fceedc

trunk/tools/perf/util/symbol.c

@@ -1762,24 +1762,38 @@ size_t dsos__fprintf_buildid(FILE *fp, bool with_hits)
 		__dsos__fprintf_buildid(&dsos__user, fp, with_hits));
 }
 
+struct dso *dso__new_kernel(const char *name)
+{
+	struct dso *self = dso__new(name ?: "[kernel.kallsyms]");
+
+	if (self != NULL) {
+		self->short_name = "[kernel]";
+		self->kernel	 = 1;
+	}
+
+	return self;
+}
+
+void dso__read_running_kernel_build_id(struct dso *self)
+{
+	if (sysfs__read_build_id("/sys/kernel/notes", self->build_id,
+				 sizeof(self->build_id)) == 0)
+		self->has_build_id = true;
+}
+
 static struct dso *dsos__create_kernel(const char *vmlinux)
 {
-	struct dso *kernel = dso__new(vmlinux ?: "[kernel.kallsyms]");
+	struct dso *kernel = dso__new_kernel(vmlinux);
 
 	if (kernel == NULL)
 		return NULL;
 
-	kernel->short_name = "[kernel]";
-	kernel->kernel	   = 1;
-
 	vdso = dso__new("[vdso]");
 	if (vdso == NULL)
 		goto out_delete_kernel_dso;
 	dso__set_loaded(vdso, MAP__FUNCTION);
 
-	if (sysfs__read_build_id("/sys/kernel/notes", kernel->build_id,
-				 sizeof(kernel->build_id)) == 0)
-		kernel->has_build_id = true;
+	dso__read_running_kernel_build_id(kernel);
 
 	dsos__add(&dsos__kernel, kernel);
 	dsos__add(&dsos__user, vdso);

trunk/tools/perf/util/symbol.h

@@ -109,6 +109,7 @@ struct dso {
 };
 
 struct dso *dso__new(const char *name);
+struct dso *dso__new_kernel(const char *name);
 void dso__delete(struct dso *self);
 
 bool dso__loaded(const struct dso *self, enum map_type type);
@@ -139,6 +140,7 @@ size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
 char dso__symtab_origin(const struct dso *self);
 void dso__set_long_name(struct dso *self, char *name);
 void dso__set_build_id(struct dso *self, void *build_id);
+void dso__read_running_kernel_build_id(struct dso *self);
 struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
 struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
 					const char *name);