1 files changed, 91 insertions, 0 deletions
diff --git a/src/inc/stacktrace.h b/src/inc/stacktrace.h
new file mode 100644
index 0000000000..83646c85ef
--- /dev/null
+++ b/src/inc/stacktrace.h
@@ -0,0 +1,91 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+//----------------------------------------------------------------------------- 
+
+//----------------------------------------------------------------------------- 
+
+#ifndef __STACK_TRACE_H__
+#define __STACK_TRACE_H__
+
+HINSTANCE LoadImageHlp();
+HINSTANCE LoadDbgHelp();
+
+#include <specstrings.h>
+
+//
+//--- Constants ---------------------------------------------------------------
+//
+
+#define cchMaxAssertModuleLen 60
+#define cchMaxAssertSymbolLen 257
+#define cfrMaxAssertStackLevels 20
+#define cchMaxAssertExprLen 257
+
+#ifdef _WIN64
+
+#define cchMaxAssertStackLevelStringLen \
+    ((3 * 8) + cchMaxAssertModuleLen + cchMaxAssertSymbolLen + 13)
+    // 3 addresses of at most 8 char, module, symbol, and the extra chars:
+    // 0x<address>: <module>! <symbol> + 0x<offset>\n
+    //FMT_ADDR_BARE   is defined as   "%08x`%08x" on Win64, and as 
+    //"%08x" on 32 bit platforms. Hence the difference in the definitions.
+
+#else
+
+#define cchMaxAssertStackLevelStringLen \
+    ((2 * 8) + cchMaxAssertModuleLen + cchMaxAssertSymbolLen + 12)
+    // 2 addresses of at most 8 char, module, symbol, and the extra chars:
+    // 0x<address>: <module>! <symbol> + 0x<offset>\n
+
+#endif
+
+//
+//--- Prototypes --------------------------------------------------------------
+//
+
+/****************************************************************************
+* MagicDeinit *
+*-------------*
+*   Description:  
+*       Cleans up for the symbol loading code. Should be called before
+*       exiting in order to free the dynamically loaded imagehlp.dll
+******************************************************************** robch */
+void MagicDeinit(void);
+
+/****************************************************************************
+* GetStringFromStackLevels *
+*--------------------------*
+*   Description:  
+*       Retrieves a string from the stack frame. If more than one frame, they
+*       are separated by newlines. Each fram appears in this format:
+*
+*           0x<address>: <module>! <symbol> + 0x<offset>
+******************************************************************** robch */
+void GetStringFromStackLevels(UINT ifrStart, UINT cfrTotal, __out_ecount(cchMaxAssertStackLevelStringLen * cfrTotal) CHAR *pszString, struct _CONTEXT * pContext = NULL);
+
+/****************************************************************************
+* GetStringFromAddr *
+*-------------------*
+*   Description:  
+*       Builds a string from an address in the format:
+*
+*           0x<address>: <module>! <symbol> + 0x<offset>
+******************************************************************** robch */
+void GetStringFromAddr(DWORD_PTR dwAddr, __out_ecount(cchMaxAssertStackLevelStringLen) LPSTR szString);
+
+#if defined(_TARGET_X86_) && defined(FEATURE_CORECLR)
+/****************************************************************************
+* ClrCaptureContext *
+*-------------------*
+*   Description:  
+*       Exactly the contents of RtlCaptureContext for Win7 - Win2K doesn't
+*       support this, so we need it for CoreCLR 4, if we require Win2K support
+****************************************************************************/
+extern "C" void __stdcall ClrCaptureContext(__out PCONTEXT ctx);
+#else // _TARGET_X86_ && FEATURE_CORECLR
+#define ClrCaptureContext RtlCaptureContext
+#endif // _X86 && FEATURE_CORECLR else
+
+
+#endif