[NFC][Sanitizer] Pull up GetStackTrace into sanitizer_common

We already independently declare GetStackTrace in all (except TSan)
sanitizer runtime headers. Lets move it to sanitizer_stacktrace.h to
have one canonical way to fill in a BufferedStackFrame. Also enables us
to use it in sanitizer_common itself.

This patch defines GetStackTrace for TSan and moves the function from
ubsan_diag.cc to ubsan_diag_standalone.cc to avoid duplicate symbols
for the UBSan-ASan runtime.

Other than that this patch just moves the code out of headers and into
the correct namespace.

Reviewers: vitalybuka

Differential Revision: https://reviews.llvm.org/D58651

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355039 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/sanitizer_common/sanitizer_stacktrace.h b/lib/sanitizer_common/sanitizer_stacktrace.h
index e9bcf3a17..eeed983f6 100644
--- a/lib/sanitizer_common/sanitizer_stacktrace.h
+++ b/lib/sanitizer_common/sanitizer_stacktrace.h
@@ -121,6 +121,12 @@ static inline bool IsValidFrame(uptr frame, uptr stack_top, uptr stack_bottom) {
   return frame > stack_bottom && frame < stack_top - 2 * sizeof (uhwptr);
 }
 
+// Get the stack trace with the given pc and bp.
+// The pc will be in the position 0 of the resulting stack trace.
+// The bp may refer to the current frame or to the caller's frame.
+void GetStackTrace(BufferedStackTrace *stack, uptr max_depth, uptr pc, uptr bp,
+                   void *context, bool request_fast_unwind);
+
 }  // namespace __sanitizer
 
 // Use this macro if you want to print stack trace with the caller