[tkreuzer] 48152: [setjmp.h] Add mingw_getsp as inline function

Author: tkreuzer
Date: Wed Jul 21 00:31:14 2010
New Revision: 48152

URL: http://svn.reactos.org/svn/reactos?rev=48152&view=rev
Log:
[setjmp.h]
Add mingw_getsp as inline function

Modified:
    trunk/reactos/include/crt/setjmp.h

Modified: trunk/reactos/include/crt/setjmp.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/crt/setjmp.h?rev=4…
==============================================================================
--- trunk/reactos/include/crt/setjmp.h [iso-8859-1] (original)
+++ trunk/reactos/include/crt/setjmp.h [iso-8859-1] Wed Jul 21 00:31:14 2010
@@ -32,7 +32,9 @@
     unsigned long UnwindFunc;
     unsigned long UnwindData[6];
   } _JUMP_BUFFER;
+
 #elif defined(__ia64__)
+
   typedef _CRT_ALIGN(16) struct _SETJMP_FLOAT128 {
     __MINGW_EXTENSION __int64 LowPart;
     __MINGW_EXTENSION __int64 HighPart;
@@ -92,7 +94,9 @@
     __MINGW_EXTENSION __int64 Preds;
 
   } _JUMP_BUFFER;
+
 #elif defined(__x86_64)
+
   typedef _CRT_ALIGN(16) struct _SETJMP_FLOAT128 {
     __MINGW_EXTENSION unsigned __int64 Part[2];
   } SETJMP_FLOAT128;
@@ -124,13 +128,34 @@
     SETJMP_FLOAT128 Xmm14;
     SETJMP_FLOAT128 Xmm15;
   } _JUMP_BUFFER;
+
 #endif
+
 #ifndef _JMP_BUF_DEFINED
   typedef _JBTYPE jmp_buf[_JBLEN];
 #define _JMP_BUF_DEFINED
 #endif
 
-  void * __cdecl __MINGW_NOTHROW mingw_getsp(void);
+static inline __attribute__((always_inline)) void * mingw_getsp(void)
+{
+    void *value;
+#if defined(__x86_64)
+#ifdef _MSC_VER
+    __asm {mov value, rsp}
+#else
+    __asm__ __volatile__("movq %%rsp, %[value]" : [value] "=r"
(value) );
+#endif
+#elif defined(_X86_)
+#ifdef _MSC_VER
+    __asm {mov value, esp}
+#else
+    __asm__ __volatile__("movql %%esp, %[value]" : [value] "=r"
(value) );
+#endif
+#else
+    #error mingw_getsp unimplemented
+#endif
+    return value;
+}
 
 #ifdef USE_MINGW_SETJMP_TWO_ARGS
 #ifndef _INC_SETJMPEX