[libsanitizer merge from upstream r218156]

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215527 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 20 insertions, 0 deletions

diff --git a/libsanitizer/lsan/lsan.h b/libsanitizer/lsan/lsan.h
index 8a5030ce878..57888e3421d 100644
--- a/libsanitizer/lsan/lsan.h
+++ b/libsanitizer/lsan/lsan.h
@@ -13,6 +13,26 @@
 #include "sanitizer_common/sanitizer_flags.h"
 #include "sanitizer_common/sanitizer_stacktrace.h"
 
+#define GET_STACK_TRACE(max_size, fast)                                     \
+  StackTrace stack;                                                         \
+  {                                                                         \
+    uptr stack_top = 0, stack_bottom = 0;                                   \
+    ThreadContext *t;                                                       \
+    if (fast && (t = CurrentThreadContext())) {                             \
+      stack_top = t->stack_end();                                           \
+      stack_bottom = t->stack_begin();                                      \
+    }                                                                       \
+    stack.Unwind(max_size, StackTrace::GetCurrentPc(), GET_CURRENT_FRAME(), \
+                 /* context */ 0, stack_top, stack_bottom, fast);           \
+  }
+
+#define GET_STACK_TRACE_FATAL \
+  GET_STACK_TRACE(kStackTraceMax, common_flags()->fast_unwind_on_fatal)
+
+#define GET_STACK_TRACE_MALLOC                                      \
+  GET_STACK_TRACE(__sanitizer::common_flags()->malloc_context_size, \
+                  common_flags()->fast_unwind_on_malloc)
+
 namespace __lsan {
 
 void InitializeInterceptors();