ARM Compiler v5.04 for µVision armcc User Guide : 7.9 --asm

7.9 --asm

Instructs the compiler to write a listing to a file of the disassembly of the machine code generated by the compiler.

Object code is generated when this option is selected. The link step is also performed, unless the -c option is chosen.

To produce a disassembly of the machine code generated by the compiler, without generating object code, select -S instead of --asm.

The compiler does not accept this option in the Evaluation variant.

The action of --asm, and the full name of the disassembly file produced, depends on the combination of options used:

Table 7-1 Compiling with the --asm option

Compiler option	Action
`--asm`	Writes a listing to a file of the disassembly of the compiled source. The link step is also performed, unless the `-c` option is used. The disassembly is written to a text file whose name defaults to the name of the input file with the filename extension `.s`.
`--asm -c`	As for `--asm`, except that the link step is not performed.
`--asm --interleave`	As for `--asm`, except that the source code is interleaved with the disassembly. The disassembly is written to a text file whose name defaults to the name of the input file with the filename extension `.txt`.
`--asm --multifile`	As for `--asm`, except that the compiler produces empty object files for the files merged into the main file.
`--asm -o filename`	As for `--asm`, except that the object file is named `filename.` The disassembly is written to the file `filename.s`. The name of the object file must not have the filename extension `.s`. If the filename extension of the object file is `.s`, the disassembly is written over the top of the object file.

Non-Confidential	PDF version	ARM DUI0375E
Copyright © 2007, 2008, 2011, 2012, 2014 ARM. All rights reserved.