Unsupported Extensions

The CodeWarrior Assembler does not support all GNU extensions. The following table lists the unsupported GNU extensions.

Table 1. Unsupported GNU Extensions
Extension	Comment
Sub-sections (such as `.text 2`)	The sub-section number is ignored. As a workaround, you can create your own sections with the `.section <name>` directive. You may have an arbitrary number of text subsections with the names `.text1, .text2,` etc.
Assignment to location counter (such as `. = .+4)`	As a workaround, you can advance the location counter with `.space` `<expr>`
Empty expressions defaulting to `0`. For example, `.byte , equivalent to (.byte 0,0`)	There is no workaround for this. You must always supply the arguments.
`.linkonce directive`	The linker automatically detects logically-identical sections, and uses the following factors to determine whether to keep only one or both in the final image: the binding of the symbols associated with each section. the location of these two sections. For example, are the sections in the same overlay or overlay `group?` Is one in main, and the other in an overlay group?
`.octa`	16-byte numbers are not supported directly. As a workaround, you can use consecutive `.long` directives to build a large number in memory.
`.quad`	8-byte numbers are not supported directly. As a workaround, you can use consecutive `.long` directives to build a large number in memory.