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Re: Which patch added R_ARM_GOTOFF32 support?
On 6/28/06, Daniel Jacobowitz <dan@codesourcery.com> wrote:
GOTOFF support has been there for a long while. Only use of it for
static functions is recent. It should be easy to find. But this is
not at all the only problem. GCC's PIC model assumes a fixed
displacement between segments.
Even if a fixed displacement is a basic assumption, it doesn't seem to
affect the ARM PIC/XIP code drastically, except for this specific case
of a static callback function. Everything else seems to `just work'. A
simple "Hello, world!" application linked statically against newlib
and using stdio (which is fairly non-trivial) works, for example.
I'm not terribly familiar with the GCC source tree. I scanned
config/arm/arm.c and its SVN log for changes that might affect
GOTOFF32, but came up empty. Do you know where the decision of GOT or
GOTOFF would be handled?
We've implemented something similar to what you need for VxWorks. A
couple of other places had to be changed. I don't remember if the
VxWorks gcc port was submitted, or just the binutils bits.
Any chance of this work making it into GCC?
Cheers,
Shaun