Revert "[sanitizer] Include inlined frames into __sanitizer_symbolize_pc output"

This reverts r343554.

It was breaking some bots:
http://lab.llvm.org:8080/green/job/clang-stage1-configure-RA/49997/

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@343600 91177308-0d34-0410-b5e6-96231b3b80d8

Author: Jessica Paquette

include/sanitizer/common_interface_defs.h

@@ -124,12 +124,6 @@ extern "C" {
 
   // Symbolizes the supplied 'pc' using the format string 'fmt'.
   // Outputs at most 'out_buf_size' bytes into 'out_buf'.
-  // If 'out_buf' is not empty then output is zero or more non empty C strings
-  // followed by single empty C string. Multiple strings can be returned if PC
-  // corresponds to inlined function. Inlined frames are printed in the order
-  // from "most-inlined" to the "least-inlined", so the last frame should be the
-  // not inlined function.
-  // Inlined frames can be removed with 'symbolize_inline_frames=0'.
   // The format syntax is described in
   // lib/sanitizer_common/sanitizer_stacktrace_printer.h.
   void __sanitizer_symbolize_pc(void *pc, const char *fmt, char *out_buf,

lib/sanitizer_common/sanitizer_stacktrace_libcdep.cc

@@ -114,25 +114,11 @@ void __sanitizer_symbolize_pc(uptr pc, const char *fmt, char *out_buf,
     return;
   }
   InternalScopedString frame_desc(GetPageSizeCached());
-  uptr frame_num = 0;
-  // Reserve one byte for the final 0.
-  char *out_end = out_buf + out_buf_size - 1;
-  for (SymbolizedStack *cur = frame; cur && out_buf < out_end;
-       cur = cur->next) {
-    frame_desc.clear();
-    RenderFrame(&frame_desc, fmt, frame_num++, cur->info,
-                common_flags()->symbolize_vs_style,
-                common_flags()->strip_path_prefix);
-    if (!frame_desc.length())
-      continue;
-    // Reserve one byte for the terminating 0.
-    uptr n = out_end - out_buf - 1;
-    internal_strncpy(out_buf, frame_desc.data(), n);
-    out_buf += __sanitizer::Min<uptr>(n, frame_desc.length());
-    *out_buf++ = 0;
-  }
-  CHECK(out_buf <= out_end);
-  *out_buf = 0;
+  RenderFrame(&frame_desc, fmt, 0, frame->info,
+              common_flags()->symbolize_vs_style,
+              common_flags()->strip_path_prefix);
+  internal_strncpy(out_buf, frame_desc.data(), out_buf_size);
+  out_buf[out_buf_size - 1] = 0;
 }
 
 SANITIZER_INTERFACE_ATTRIBUTE