* As can assemble of mips gp-relative code?
@ 1999-10-20 13:56 David Foulds
1999-10-20 14:01 ` Geoff Keating
0 siblings, 1 reply; 2+ messages in thread
From: David Foulds @ 1999-10-20 13:56 UTC (permalink / raw)
To: binutils
I'm trying to port to gas some mips assembly code
which looks like this
sw a0, %sdaoff(cpu_type)($gp)
I decided the equivalent in gas syntax
was
sw a0, cpu_type(gp)
(cpu_type is an integer that is allocated to the .sbss
section by ld).
However, the relocatable code that is emitted by gas (10/20
snapshot) is
addu at,gp,gp
sw a0,0(at)
with cpu_type R_MIPS_GPREL16.
The linker does correctly calculate the offset
of cpu_type from _gp but the value in at is not _gp!
Also, two instructions are used here when one would
do, and at is stepped on.
Any comments? How can I get gas to do what I want,
which is to emit
sw a0,0(gp) with cpu_type R_MIPS_GPREL16?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: As can assemble of mips gp-relative code?
1999-10-20 13:56 As can assemble of mips gp-relative code? David Foulds
@ 1999-10-20 14:01 ` Geoff Keating
0 siblings, 0 replies; 2+ messages in thread
From: Geoff Keating @ 1999-10-20 14:01 UTC (permalink / raw)
To: dfoulds; +Cc: binutils
> Date: Wed, 20 Oct 1999 13:55:39 -0700
> From: David Foulds <dfoulds@cosinecom.com>
> I'm trying to port to gas some mips assembly code
> which looks like this
>
> sw a0, %sdaoff(cpu_type)($gp)
>
> I decided the equivalent in gas syntax
> was
>
> sw a0, cpu_type(gp)
...
You want
sw a0,cpu_type
instead.
--
- Geoffrey Keating <geoffk@cygnus.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
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