[ Post removed by author. ]

Yes, you are right. The fasm formatter (FORMATS.INC) writes down the name of the default section to the final binary file, so the ".flat" never appears on the symbol tables. In other words, it is bypassed by the "dump_symbols" function.

IMHO it should be corrected for completness: the fas file should describe univocally the file that is going to be debugged.

(Note: topic moved to Compiler Internals)

[ Post removed by author. ]

The "sections" in .fas file correspond only to object file linkable sections, that may be a base symbols for some relocations. In case of executable files there's no such need, as PE sections are not relocated separately.

[ Post removed by author. ]

The .fas is meant to supplement output, not replace it. Note that sections list in .fas is merely for the purpose of references by some other symbols, you won't find information like section flags and other such specific things in the .fas file, you have to look them up in the output file.