8.12 Linker Example

This example links three object files named demo.c.obj, ctrl.c.obj, and tables.c.obj and creates a program called demo.out. The symbol SETUP is the program entry point.

Assume that target memory has the following program memory configuration:

The output sections are constructed in the following manner:

• Executable code, contained in the .text sections of demo.c.obj, ctrl.c.obj, and tables.c.obj, must be linked into FLASH.
• A set of interrupt vectors, contained in the .intvecs section of tables.c.obj, must be linked at address 0xFFE0.
• A table of coefficients, contained in the .data section of tables.c.obj, must be linked into FLASH. The remainder of block FLASH must be initialized to the value 0xFF00.
• A set of variables, contained in the .bss section of ctrl.c.obj, must be linked into RAM and preinitialized to 0x0100.
• Another .bss section in ctrl.c.obj must be linked into RAM.

Example 30 shows the linker command file for this example. Example 31 shows the map file.