Epson S5U1C63000A 5.6 Link Map File, Sample link map file, Contents of link map file

CHAPTER 5: LINKER

5.6 Link Map File

The link map file serves to refer to the mapping information for the modules of each section. It is output if the -m option is specified.

The file format is a text file, and its file name is "<File name>.map". (<File name> is the same as that of the output object file.)

Sample link map file

Linker 63 ver x.xx Link map file TEST.MAP Mon Jan 15 12:40:41 2001

CODE section map of TEST.ABS
Index	Start	End	Size	Opt	Type	File	SecNbr
0:	0x0000	0x000d	0x000e	+0	Rel	SUB.S	1
1:	0x000e	0x00ff	0x00f2	---	---	------------	---
2:	0x0100	0x0102	0x0003	+1	Abs	MAIN.S	1
3:	0x0103	0x010f	0x000d	---	---	------------	---
4:	0x0110	0x0118	0x0009	+2	Abs	MAIN.S	2

5:0x0119 0x1fff 0x1ee7 --- --- ------------ ---

Total: 0x1a occupied, 0x1fe6 blank

BSS section map of TEST.ABS
Index	Start	End	Size	Type	File	SecNbr
0:	0x0000	0x0007	0x0008	Rel	MAIN.S	3
1:	0x0008	0xf2bf	------	---	------------	---
2:	0xf800	0xf8ff	------	---	------------	---

3:0xff00 0xffff ------ --- ------------ ---

Total: 0x8 occupied, 0xf4b8 blank

Contents of link map file

Index Indicates the index number of the section.

Start Indicates the start address of the section.

End Indicates the end address of the section.

Size Indicates the size of the section.

Opt Indicates the number of extension codes that are inserted or removed.

Type Indicates the section type: Rel = relocatable section and Abs = absolute section.

File Indicates the file names of the linked module.

SecNbr Indicates the section number.

Total Indicates the total map size and the unused area size.

"---" in the Size, Opt, Type, File and SecNbr columns indicate that no section is allocated.

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