Added assembly implementation of EXC_CallHandler.

dlls/ntdll/exception.c

@@ -116,7 +116,10 @@ static DWORD EXC_UnwindHandler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RE
  * happening during the handler execution.
  * Please do not change the first 4 parameters order in any way - some exceptions handlers
  * rely on Base Pointer (EBP) to have a fixed position related to the exception frame
+ *
+ * For i386 this function is implemented in assembler in signal_i386.c.
  */
+#ifndef __i386__
 static DWORD EXC_CallHandler( EXCEPTION_RECORD *record, EXCEPTION_REGISTRATION_RECORD *frame,
                               CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher,
                               PEXCEPTION_HANDLER handler, PEXCEPTION_HANDLER nested_handler)
@@ -134,7 +137,12 @@ static DWORD EXC_CallHandler( EXCEPTION_RECORD *record, EXCEPTION_REGISTRATION_R
     __wine_pop_frame( &newframe.frame );
     return ret;
 }
-
+#else
+/* in signal_i386.c */
+extern DWORD EXC_CallHandler( EXCEPTION_RECORD *record, EXCEPTION_REGISTRATION_RECORD *frame,
+                              CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher,
+                              PEXCEPTION_HANDLER handler, PEXCEPTION_HANDLER nested_handler);
+#endif
 
 /**********************************************************************
  *           send_debug_event

dlls/ntdll/signal_i386.c

@@ -1384,4 +1384,36 @@ __ASM_GLOBAL_FUNC( DbgBreakPoint, "int $3; ret");
  */
 __ASM_GLOBAL_FUNC( DbgUserBreakPoint, "int $3; ret");
 
+
+/**********************************************************************
+ *		EXC_CallHandler   (internal)
+ */
+__ASM_GLOBAL_FUNC( EXC_CallHandler,
+"	pushl	%ebp\n"
+"	movl	%esp, %ebp\n"
+"	subl	$12, %esp\n"
+"	movl	28(%ebp), %eax\n"
+"	movl	12(%ebp), %edx\n"
+"	movl	%eax, -8(%ebp)\n"
+"	movl	%edx, -4(%ebp)\n"
+"	leal	-12(%ebp), %eax\n"
+"	.byte 0x64\n"
+"	movl (0),%ecx\n"
+"	movl %ecx,(%eax)\n"
+"	.byte 0x64\n"
+"	movl %eax,(0)\n"
+"	movl	20(%ebp), %eax\n"
+"	pushl	%eax\n"
+"	movl	16(%ebp), %eax\n"
+"	pushl	%eax\n"
+"	movl	8(%ebp), %eax\n"
+"	pushl	%edx\n"
+"	pushl	%eax\n"
+"	call	*24(%ebp)\n"
+"	movl	-12(%ebp), %edx\n"
+"	.byte 0x64\n"
+"	movl %edx,(0)\n"
+"	leave\n"
+"	ret\n"
+);
 #endif  /* __i386__ */