| Commit message (Collapse) | Author | Age | Files | Lines |
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Move glapi to src/mapi/{glapi,es1api,es2api}.
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This reverts commit 9446fd8f69564e09ffd0f28735a99c510f84bb62.
It doesn't make sense to replace strcpy(a,b) with strncpy(a,b,strlen(b)).
The preceeding code effectively does bounds checking, btw.
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add_dispatch (driver) and maybe get_proc_address (client) may be called before
set_dispatch is called, which results in generate_entrypoint using an unreloced
function template.
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- a function cannot be both static and extension, right ?
- we should be setting the offset only if not already set, right ?
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- static vs. extension
- indent
- s/new_offset/static_offset/
- ...
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make similar to functions for extensions table
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Conflicts:
src/mesa/main/dd.h
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Fixes breakage from -fvisibility-hidden commit.
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This allows different sets of generated sources and headers to be used.
Signed-off-by: Chia-I Wu <[email protected]>
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This rewrites the sparc GLAPI code so that it's PIC friendly and works
with all of the TLS/PTHREADS/64-bit/32-bit combinations properly.
As a result we can turn SPARC asm back on. Currently it's only
enabled on Linux, as that's the only place where I can test this
stuff out.
For the moment the cliptest SPARC asm routines are disabled as they
are non-working. The problem is that they use register %g7 as a
temporary which is where the threading libraries store the thread
pointer on SPARC. I will fix that code up in a future change as it's
a pretty important routine to optimize.
Like x86 we do the runtime patch as a pthread once-invoked initializer
in init_glapi_relocs().
Unlike x86, however, our GLAPI stubs on SPARC are just two instruction
sequences that branch to a trampoline and put the GLAPI offset into a
register. The trampoline is what we run-time patch. The stubs thus
all look like:
glFoo:
ba __glapi_sparc_foo_stub
sethi GLAPI_OFFSET(glFOO) * PTR_SIZE, %g3
This actually makes generate_entrypoint() a lot simpler on SPARC. For
this case in generate_entrypoint() we generate stubs using a 'call'
instead of the 'ba' above to make sure it can reach.
In order to get a proper tail call going here, in the unpatched case,
we do several tricks. To get the current PC, for example, we save the
return address register into a temporary, do a call, save the return
address register written by the call to another temporary, then
restore the original return address register value. This is to
avoid having to allocate a stack frame.
This is necessary for PIC address formation.
This new GLAPI scheme lets us get rid of the ugly SPARC GLAPI hacks in
__glXInitialize() and one_time_init().
Signed-off-by: David S. Miller <[email protected]>
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This trims down and cleans up imports.h and glheader.h quite a bit.
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(cherry picked from commit b1eff0228b7199920c02e62446ebf5496c298814)
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glapi_getproc.c file
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