BUG: INT3 Encountered When Debugging a P-Code DLL (85484)
The information in this article applies to:
- Microsoft CodeView for Windows 4.0
- Microsoft CodeView for Windows 4.01
- Microsoft CodeView for Windows 4.1
This article was previously published under Q85484 SYMPTOMS
An attempt to use CodeView versions 4.0 or 4.01 for Windows to debug a
dynamic-link library (DLL) that contains p-code may cause CodeView to
display the following error message in the command window:
Break caused by INT3 in code
Using CodeView for Windows version 4.10 in the same situation may
cause a General Protection fault.
CAUSE
Tracing into a Windows DLL that contains p-code with Native mode turned on
causes CodeView to display the error message given above.
RESOLUTION
Native mode must be turned off to debug a DLL that contains p-code. To turn
off Native mode, choose Native from the Options menu. When Native mode is
turned on, a bullet appears to the left of the command on the menu.
STATUS
Microsoft has confirmed this to be a problem in CodeView for Windows
versions 4.0, 4.01, and 4.1. We are researching this problem and will post
new information here in the Microsoft Knowledge Base as it becomes
available.
MORE INFORMATION
With Native mode turned on, CodeView displays native machine
instructions in the Source and Mixed display modes. The Register
window and the Register command show the native CPU registers. With
Native mode turned off, CodeView displays native machine instructions
in those parts of a program that contain native code, and displays
p-code instructions in those parts of a program that contain p-code.
Also, the Register window and the Register command display the native
CPU registers when debugging a native routine, and display the p-code
interpreter's registers when debugging a p-code routine.
Typically, Native mode should be turned off when debugging p-code.
Turning Native mode on when debugging p-code causes CodeView to
display the native machine code of the p-code interpreter.
| Modification Type: | Major | Last Reviewed: | 9/30/2003 |
|---|
| Keywords: | kb16bitonly KB85484 |
|---|
|