Changeset 21612 for trunk/src

Timestamp:

Apr 14, 2011, 12:54:43 PM (14 years ago)

Author:

dmik

Message:

kernel32/SEH: Fixed: The try exception handler would incorrectly unwind the WIn32 exception change due to use of a register that is not preserved across stdcall calls.

File:

• trunk/src/kernel32/seh/sehutil.s (modified) (2 diffs)

trunk/src/kernel32/seh/sehutil.s

@@ -64 +64 @@
     /* restore the Win32 chain in our frame */
     movl 12(%ebp), %eax
-    movl 60(%eax), %ecx /* pPrevFrameWin32 */
-    movl %ecx, 0(%eax)  /* pPrev */
+    movl 60(%eax), %ebx /* pPrevFrameWin32 */
+    movl %ebx, 0(%eax)  /* pPrev */
 
     /* unwind the Win32 chain including our frame as someone's definitely
@@ -75 +75 @@
     pushl $0        /* PEXCEPTION_RECORD */
     pushl $0        /* LPVOID (unused) */
-    pushl %ecx      /* PEXCEPTION_FRAME */
+    pushl %ebx      /* PEXCEPTION_FRAME */
     call _RtlUnwind@16 /* _stdcall, rtl, callee cleans stack */
     popl %fs