/MAP (Generate Mapfile)
The /MAP option tells the linker to create a mapfile.
By default, the linker names the mapfile with the base name of the program and the extension .map. The optional filename allows you to override the default name for a mapfile.
A mapfile is a text file that contains the following information about the program being linked:
The module name, which is the base name of the file
The timestamp from the program file header (not from the file system)
A list of groups in the program, with each group's start address (as section:offset), length, group name, and class
A list of public symbols, with each address (as section:offset), symbol name, flat address, and .obj file where the symbol is defined
The entry point (as section:offset)
The /MAPINFO option specifies additional information to be included in the mapfile.
To set this linker option in the Visual Studio development environment
Open the project's Property Pages dialog box. For details, see Setting Visual C++ Project Properties.
Click the Linker folder.
Click the Debug property page.
Modify the Generate Map File property.