Re: [5] include/winnt.h

Hi Danny!

See comments below.

Danny Smith wrote:

>+typedef LONG (NTAPI *PVECTORED_EXCEPTION_HANDLER)(struct
>_EXCEPTION_POINTERS*);
>+
>
>Above conflicts with current typedef of  PVECTORED_EXCEPTION_HANDLER and
>with documentation at
>http://msdn.microsoft.com/library/default.asp?url=/library/en-us/debug/b
>ase/vectoredhandler.asp
>
>  
>
To be more precise, it really doesn't conflict, because it has the same 
effect. In any case the definition is already there in the CVS version 
of w32api (commited by Dimitri Papadopoulos on 2003-10-07, 2003-10-09).

>Regarding the  NtCurrentTeb inlines.
>
>1) Why  Alpha, MIPS and PPC  versions?
>  
>
I wanted it be complete, but in any case it wasn't done right so I 
removed them.

>2)  Where are these documented?.
>  
>
Hmm, that's problem. I got couple of hits on google for it, about half 
of the were from Wine (which is unacceptable) and the most of the 
remaining pages are unavailable ATM. Originaly I found it when I was 
compiling program with MSVC and then with MinGW. If you want I can 
provide a simple test case that compiles with MSVC + Platform SDK, but 
not with MinGW + w32api because of missing NtCurrectTeb.

>3) This breaks WATCOM usage which defines _M_IX86 but doesn't use AT&T
>asm
>  
>
If you look at the patch more closely, it doesn't break Watcom, because 
it's already in the __GNUC__ block along with two other inline assambler 
functions. Unfortunetly I can't provide inline version for Watcom 
because I don't know the syntax for inserting inline assambler.

>Danny
>
Attached is updated patch against the current CVS.

Regards,
Filip

Changelog:
2004-01-01  Filip Navara  <xnavara-VIXq6x/[email protected]>

    * include/winnt.h: Added declaration of NtCurrentTeb.

--- w32api\include\winnt.h	Mon Dec  1 09:11:42 2003
+++ w32api\include\winnt.h	Thu Jan  1 10:36:18 2004
@@ -3303,6 +3303,19 @@
     return ret;
 }
 
+static __inline__ struct _TEB * NtCurrentTeb(void)
+{
+    struct _TEB *ret;
+
+    __asm__ __volatile__ (
+        "movl %%fs:0x18, %0\n"
+        : "=r" (ret)
+        : /* no inputs */
+    );
+
+    return ret;
+}
+
 #else
 
 extern PVOID GetCurrentFiber(void);