PRB: MAP File Line Number Incompatible with Nu-Mega Msym.exe

 Last reviewed: December 12, 1995
Article ID: Q140793
The information in this article applies to:
  • Microsoft Win32 Device Development Kit (DDK) for Windows 95

SYMPTOMS

When the Nu-Mega MS-DOS utility Msym.exe is run on a VxD .map file containing line number information, the resulting SoftICE symbol file contains no line number information. This occurs using Microsoft Ml.exe version 6.11c and Link.exe version 2.60.5046, with the updated files from the Windows 95 DDK Masm611c and Msvc20 directories.

CAUSE

Msym.exe uses the line number information generated by the linker in the .map file. The line number information in the .map file may contain the following characteristics:

  • Line numbers are not all in ascending order.
  • Line numbers are duplicated and associated with the same address.
  • Line numbers are duplicated and associated with different addresses.
  • Different line numbers are associated with the same address.

Msym.exe does not properly process an .map file containing these characteristics, and it omits the line number information when creating the SoftICE symbol file.

STATUS

Microsoft is researching this behavior and will post new information here in the Microsoft Knowledge Base as it becomes available.

Additional reference words: 4.00
KBCategory: kbtool kbprb
KBSubcategory: DdkMisc

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Last reviewed: December 12, 1995
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