Re: [9fans] 5a and optimization

[Noah Evans <noah.evans@gmail.com>]

Yeah, I put it in l.s(probably should put it in rom.s but who knows).  
The linker eats the text if I leave the branch in. So I put the  
branch in a WORD and(thanks to Charles' advice) use -E to go to the  
initial TEXT _rom section.

Very true about the rom weirdness.

Thank you very much for the advice. I really appreciate the support.

Noah

On Jan 20, 2006, at 12:49 AM, jmk@plan9.bell-labs.com wrote:

> One way is to make it TEXT, e.g. the multiboot header and GDT stuff
> in /sys/src/9/pc/l.s.
>
> Agreed, the loaders don't make such things easy to do, but writing
> assembler and making odd format binaries is the exception, not the
> rule.
>
> --jim
>
> On Thu Jan 19 06:31:30 EST 2006, noah.evans@gmail.com wrote:
>> How do you keep the linker from optimizing away your rom headers and
>> other data? I had to put a noop in front of my first text section to
>> keep the linker from putting the main loop in front of it. I also had
>> to code the branch past the rom header in hex to keep the linker from
>> eating the header(it's unreachable).
>>
>> Best,
>>
>> Noah