Dynamically create labels in gas macros?
- by pgod
Hi everyone,
I would like to dynamically create a set of labels in an assembly function using a gas macro. I would like to do something like this:
.macro set_up_jumptab_entry prefix, from=0, to=10
.quad \prefix_\item
.if \to-\from
set_up_jumptab_entry \prefix,"(\from+1)",\to
.endif
.endm
set_up_jumptab_entry myfunc 0 10
Here \prefix_\item would be something like myfunction_7. Now, I can find lots of examples of recursive invocation, but I haven't found one of just label concatenation involving passed-in macro arguments. Gas is quite poorly documented, so answering this question is difficult for me.
Can you concatenate arguments to macros with other tokens to make single tokens?
What's your favorite gas assembler reference?
