Changeset 5750

Timestamp:

May 19, 2001, 1:14:38 PM (24 years ago)

Author:

sandervl

Message:

InterlockedCompareExchange bugfix

Location:

trunk/src/kernel32

Files:

• interlock.asm (modified) (3 diffs)
• oslibexcept.cpp (modified) (2 diffs)

trunk/src/kernel32/interlock.asm ¶

@@ -1 @@
-; $Id: interlock.asm,v 1.7 1999-12-16 00:59:21 sandervl Exp $
+; $Id: interlock.asm,v 1.8 2001-05-19 11:14:38 sandervl Exp $
 
 ;/*
@@ -93 +93 @@
 ; * the value of Destination with Exchange
 ; *
-; * RETURNS
-; *     Prior value of value pointed to by Destination
 ; */
 _InterlockedCompareExchange@12 proc near
@@ -103 +101 @@
 
         mov     ebx, dword ptr [ebp+8]  ;PVOID *Destination, /* Address of 32-bit value to exchange */
-        push    dword ptr [ebx]         ;save old *Destination
         mov     eax, [ebp+16]           ;PVOID Comperand      /* value to compare, 32 bits */
         mov     edx, [ebp+12]           ;PVOID Exchange,      /* change value, 32 bits */
         lock    cmpxchg dword ptr [ebx],edx
-        pop     eax
 
         pop     ebx

trunk/src/kernel32/oslibexcept.cpp ¶

@@ -1 @@
-/* $Id: oslibexcept.cpp,v 1.5 2000-11-21 11:35:08 sandervl Exp $ */
+/* $Id: oslibexcept.cpp,v 1.6 2001-05-19 11:14:38 sandervl Exp $ */
 /*
  * Exception handler util. procedures
@@ -169 +169 @@
         break;
 
+  case XCPT_ILLEGAL_INSTRUCTION:
+  case XCPT_PRIVILEGED_INSTRUCTION:
+        rc = RtlDispatchException(&winreportrec, &wincontextrec);
+        break;
+
   case XCPT_INTEGER_DIVIDE_BY_ZERO:
   case XCPT_INTEGER_OVERFLOW:
-  case XCPT_PRIVILEGED_INSTRUCTION:
   case XCPT_BREAKPOINT:
   case XCPT_SINGLE_STEP:
   case XCPT_ARRAY_BOUNDS_EXCEEDED:
   case XCPT_DATATYPE_MISALIGNMENT:
-  case XCPT_ILLEGAL_INSTRUCTION:
   case XCPT_INVALID_LOCK_SEQUENCE:
   case XCPT_GUARD_PAGE_VIOLATION: