auto import from //depot/cupcake/@135843
diff --git a/debuggerd/utility.h b/debuggerd/utility.h
new file mode 100644
index 0000000..49f5951
--- /dev/null
+++ b/debuggerd/utility.h
@@ -0,0 +1,56 @@
+/* system/debuggerd/utility.h
+**
+** Copyright 2008, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+** http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#ifndef __utility_h
+#define __utility_h
+
+#include <stddef.h>
+#include <stdbool.h>
+
+#ifndef PT_ARM_EXIDX
+#define PT_ARM_EXIDX 0x70000001 /* .ARM.exidx segment */
+#endif
+
+#define STACK_CONTENT_DEPTH 32
+
+typedef struct mapinfo {
+ struct mapinfo *next;
+ unsigned start;
+ unsigned end;
+ unsigned exidx_start;
+ unsigned exidx_end;
+ char name[];
+} mapinfo;
+
+/* Get a word from pid using ptrace. The result is the return value. */
+extern int get_remote_word(int pid, void *src);
+
+/* Handy routine to read aggregated data from pid using ptrace. The read
+ * values are written to the dest locations directly.
+ */
+extern void get_remote_struct(int pid, void *src, void *dst, size_t size);
+
+/* Find the containing map for the pc */
+const mapinfo *pc_to_mapinfo (mapinfo *mi, unsigned pc, unsigned *rel_pc);
+
+/* Map a pc address to the name of the containing ELF file */
+const char *map_to_name(mapinfo *mi, unsigned pc, const char* def);
+
+/* Log information onto the tombstone */
+extern void _LOG(int tfd, bool in_tombstone_only, const char *fmt, ...);
+
+#endif