Programming Forums > Application Development > C++

shouvik · Jan 30th, 2007, 12:35 AM

how to generate a map file in GCC.
please help

Infinite Recursion · Jan 30th, 2007, 8:24 AM

I am under the impression that English is not your native language.
Here is something found when I used -google- with "gcc mapfile" as keywords.

"Map file is generally generated by linker. This specifies
the memory map generated by linker. Generally map file
does not have any specific format such as coff or elf ..
It is a human readable file and the contents of this
file are linker dependent.
This file contains memory addresses and sizes of varios
sections, section types(e.g. noload section etc). "

shouvik · Jan 30th, 2007, 8:29 AM

Quote:

I am under the impression that English is not your native language.

well if you presume things at once you might go wrong as well.

I did a li'l bit of homework before putting up this question here and I did get my map file generated. But unlike VC it contained no mangled name info as i required which icould only extract through the object file.

v0id · Jan 31st, 2007, 12:27 AM

You've to use the parameter, -Wl, to direct the -Wl's arguments to the linker (ld). Then just use the simple -Map and then a filename for the mapfile.

(Toggle Plain Text)

gcc test.c -o test -Wl,-Map,testMap.map

I hope it was what you needed!

shouvik · Jan 31st, 2007, 12:30 AM

yeah exactly that's what i used. But i needed them name mangles which were missing in the map file

Jan 30th, 2007, 12:35 AM	#1
shouvik Newbie Join Date: Jan 2007 Posts: 16 Rep Power: 0	Map File how to generate a map file in GCC. please help __________________ Thanks and Regards Shouvik

Jan 30th, 2007, 8:24 AM	#2
Infinite Recursion Programming Guru Join Date: Jul 2004 Location: United States Posts: 3,467 Rep Power: 8	I am under the impression that English is not your native language. Here is something found when I used -google- with "gcc mapfile" as keywords. "Map file is generally generated by linker. This specifies the memory map generated by linker. Generally map file does not have any specific format such as coff or elf .. It is a human readable file and the contents of this file are linker dependent. This file contains memory addresses and sizes of varios sections, section types(e.g. noload section etc). " __________________ http://jasonpowers.net "There are a thousand hacking at the branches of evil to one who is striking at the root."

Jan 31st, 2007, 12:27 AM	#4
v0id Hobbyist Programmer Join Date: Apr 2006 Posts: 155 Rep Power: 3	You've to use the parameter, -Wl, to direct the -Wl's arguments to the linker (ld). Then just use the simple -Map and then a filename for the mapfile. (Toggle Plain Text) gcc test.c -o test -Wl,-Map,testMap.map gcc test.c -o test -Wl,-Map,testMap.map I hope it was what you needed! __________________ -- v0id

Jan 31st, 2007, 12:30 AM	#5
shouvik Newbie Join Date: Jan 2007 Posts: 16 Rep Power: 0	yeah exactly that's what i used. But i needed them name mangles which were missing in the map file __________________ Thanks and Regards Shouvik

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Programming Forums > Application Development > C++

Map File