How To Windows 98 DDK: Building Symbol Files with Line Number Information (259332)

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To build symbol files that contain line-number information, modify the following files:

Modify the Makefile.def file in the Win98\Inc folder to cause the linker to use the correct linker options to build a .map file with line-number information.
Use the Mapsym.exe file, once the correct link options are used, to build a .sym file with line-number information that matches your .sys file. Follow these steps:
1. In your SOURCES file for the driver you are building, add the following line:
```
USE_MAPSYM=TRUE
							
```
2. Edit the DDK\Inc\Makefile.def file and make the following changes:
  
  Change the line that reads as follows (should be line 1138)
```
LINKER_DBG_SECTION=-debug:notmapped,FULL
								
```
  to the following:
```
LINKER_DBG_SECTION=-debug:FULL
								
```
  Change the line that reads as follows (should be line 1276)
```
LINKER_DBG_TYPE = -debugtype:both
								
```
  to the following:
```
LINKER_DBG_TYPE = -debugtype:MAP,COFF
							
```
3. Rebuild the driver. You should see a (driver_Name).map file in the Win98ddk\Lib\i386\Checked folder. You can check for line-number information by opening the .map file and checking to see if it contains line numbers near the bottom of the file.
4. With line-number information, you can specify a code search path in RTERM98. You should then see the source window open when a breakpoint is hit in the driver.