[ 1832340 ] undefined reference to `_NtCurrentTeb'.



git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@199 4407c894-4637-0410-b4f5-ada5f102cad1

mingw-w64-crt/ChangeLog

diff --git a/mingw-w64-crt/ChangeLog b/mingw-w64-crt/ChangeLog
index 90f02c6..1e31361 100755
--- a/mingw-w64-crt/ChangeLog
+++ b/mingw-w64-crt/ChangeLog
@@ -1,3 +1,7 @@
+2007-11-15  Kai Tietz  <kai.tietz@onevision.com>
+
+	* misc/wininterlocked.c: Add NtCurrentTeb function. PR/1832340.
+
 2007-10-22  20-40  <20-40@annonymous>
 
 	* crtexe.c: Add _pei386_runtime_relocator.

mingw-w64-crt/misc/wininterlocked.c

diff --git a/mingw-w64-crt/misc/wininterlocked.c b/mingw-w64-crt/misc/wininterlocked.c
index 8e2aad2..377637d 100755
--- a/mingw-w64-crt/misc/wininterlocked.c
+++ b/mingw-w64-crt/misc/wininterlocked.c
@@ -315,3 +315,80 @@
   return Value;
 }
 #endif
+
+#ifdef _WIN64
+#if defined(__x86_64)
+ struct _TEB *NtCurrentTeb(VOID)
+ {
+   return (struct _TEB *)__readgsqword(FIELD_OFFSET(NT_TIB,Self));
+ }
+
+ PVOID GetCurrentFiber(VOID)
+ {
+   return(PVOID)__readgsqword(FIELD_OFFSET(NT_TIB,FiberData));
+ }
+
+ PVOID GetFiberData(VOID)
+ {
+   return *(PVOID *)GetCurrentFiber();
+ }
+
+ BYTE __readgsbyte(DWORD Offset)
+ {
+   BYTE ret;
+   __asm__ volatile ("movb	%%gs:%1,%0"
+     : "=r" (ret) ,"=m" ((*(volatile long *) (DWORD64) Offset)));
+   return ret;
+ }
+ WORD __readgsword(DWORD Offset)
+ {
+   WORD ret;
+   __asm__ volatile ("movw	%%gs:%1,%0"
+     : "=r" (ret) ,"=m" ((*(volatile long *) (DWORD64) Offset)));
+   return ret;
+ }
+ 
+ DWORD __readgsdword(DWORD Offset)
+ {
+   DWORD ret;
+   __asm__ volatile ("movl	%%gs:%1,%0"
+     : "=r" (ret) ,"=m" ((*(volatile long *) (DWORD64) Offset)));
+   return ret;
+ }
+ DWORD64 __readgsqword(DWORD Offset)
+ {
+   void *ret;
+   __asm__ volatile ("movq	%%gs:%1,%0"
+     : "=r" (ret) ,"=m" ((*(volatile long *) (DWORD64) Offset)));
+   return (DWORD64) ret;
+ }
+ VOID __writegsbyte(DWORD Offset,BYTE Data)
+ {
+    __asm__ volatile ("movb	%0,%%gs:%1"
+      : "=r" (Data) ,"=m" ((*(volatile long *) (DWORD64) Offset)));
+ }
+ VOID __writegsword(DWORD Offset,WORD Data)
+ {
+    __asm__ volatile ("movw	%0,%%gs:%1"
+      : "=r" (Data) ,"=m" ((*(volatile long *) (DWORD64) Offset)));
+  }
+  VOID __writegsdword(DWORD Offset,DWORD Data)
+  {
+    __asm__ volatile ("movl	%0,%%gs:%1"
+      : "=r" (Data) ,"=m" ((*(volatile long *) (DWORD64) Offset)));
+  }
+  VOID __writegsqword(DWORD Offset,DWORD64 Data)
+  {
+    __asm__ volatile ("movq	%0,%%gs:%1"
+      : "=r" (Data) ,"=m" ((*(volatile long *) (DWORD64) Offset)));
+  }
+#endif
+#else
+  struct _TEB *NtCurrentTeb(void)
+  {
+    struct _TEB *ret;
+    __asm__ volatile ("movl	%%fs:0x18,%0"
+      : "=r" (ret));
+    return ret;
+  }
+#endif