[asan] Implement GetObjectNameAndOffset on ARM.
llvm-svn: 148236
diff --git a/compiler-rt/lib/asan/asan_linux.cc b/compiler-rt/lib/asan/asan_linux.cc
index 8b05723..67acd52 100644
--- a/compiler-rt/lib/asan/asan_linux.cc
+++ b/compiler-rt/lib/asan/asan_linux.cc
@@ -214,6 +214,27 @@
return true;
}
+#ifdef __arm__
+
+// Gets the object name and the offset by walking AsanProcMaps.
+bool AsanProcMaps::GetObjectNameAndOffset(uintptr_t addr, uintptr_t *offset,
+ char filename[],
+ size_t filename_size) {
+ AsanProcMaps proc_maps;
+ uintptr_t start, end, file_offset;
+ while (proc_maps.Next(&start, &end, &file_offset, filename, filename_size)) {
+ if (addr >= start && addr < end) {
+ *offset = (addr - start) + file_offset;
+ return true;
+ }
+ }
+ if (filename_size)
+ filename[0] = '\0';
+ return false;
+}
+
+#else // __arm__
+
struct DlIterateData {
int count;
uintptr_t addr;
@@ -258,6 +279,8 @@
return false;
}
+#endif // __arm__
+
void AsanThread::SetThreadStackTopAndBottom() {
if (tid() == 0) {
// This is the main thread. Libpthread may not be initialized yet.
