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Re: getting gnu as to check the current location
On Apr 13, 2010, at 9:57 PM, Alan Modra wrote:
> On Tue, Apr 13, 2010 at 01:36:16PM -0400, Harvey Chapman wrote:
>> Is it possible with gnu as to do something like this?
>>
>> .if (. - _start1) < 0x100 || (. - _start1) > 0x1ff
>> .error "some_label must be between 0x100 and 0x1FF!"
>> .endif
>> some_label:
>
> It depends on what is between . and _start. They must be in the same
> section, and there can't be any .align or similar directives between.
Both of those are true. The code above does not work. I was hoping someone else more knowledgeable would see it and either know the solution or point me in the right direction. I may simply have to add a binary grep step to my build which grabs and checks the offset of some_label. I have an ascii string right next to it for debugging purposes, anyway.
Thank you,
Harvey