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I would like to know if there's some utility application to automatically generate an .a51 file carrying the whole information about symbols contained into the linker listing file .m51. Thanx. Regards.
Don't understand what you mean! The Linker Listing just contains details of the symbols that came from the source files anyway! What are you atually trying to do?
I guess what he faces is a situation much like one we have around here. Code in our project is split up in two parts: a default version of the whole project sitting in ROM, and a reduced copy of it sitting in flash memory. Both are generated from the same sources, but large parts of the code are #ifdef'ed out for the flash build. The idea is that for functions that haven't changed since the ROM was built, the flash should just call the ROM code, to reduce flash memory usage. The trick is to extract the addresses of all those ROM routines called by the flash out of the ROM build's map file and translate them into a special "import library" kind of header file like this:
symbol1 set 01234h symbol2 set 02345h
Extracting the symbols from the OMF or OBJs would avoid the problem of changing file formats. A bit more difficult to write the program, of course.
"A bit more difficult to write the program, of course" Possbily not - OMF is designed to be machine-readable; the linker listing isn't!