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Re: [gas] Label inside macro


On 06/08/2011 12:00 PM, Robert Uhl wrote:
Hi,

I wrote the following macro and use it 256 times with the
parameter intnr 0...255.


.macro SPRINGBOARD intnr cmpq $0, (counter_running) je dont_count # interrupt counter disabled

push $\intnr
call countinterrupt
add $8, %rsp # remove intnr from stack

dont_count:
jmp *(originalhandler + \intnr * 8)
.align 16
.endm


Of course gas complains about the label dont_count: "Error: symbol `dont_count' is already defined".

Is it possible to make the label only visible inside the macro?
Or is it possible to use the parameter as a label inside the macro?

I tried already "dont_count_\intr:" and "dont_count_\intr :" as a label
but gas shows: "Error: invalid character '(' in mnemonic"


Look at: http://sourceware.org/binutils/docs-2.21/as/Symbol-Names.html

Under the 'Local Labels' section, it explains how to do what you want.

David Daney


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