platform_external_libffi/src/sparc/internal.h, branch master Unnamed repository; edit this file 'description' to name the repository. sparc: Re-add abi compliant structure support 2014-11-12T08:36:11+00:00 Richard Henderson rth@twiddle.net 2014-10-26T22:29:04+00:00 6eec410f1512d0584276db5f4b83711330e830d7 The original code, removed in the "rewrite" patch, was incorrect for large structures, and required dynamic allocation of a trampoline on every ffi_call. Instead, allocate a 4k entry table of all possible structure returns. The table is 80k, but is read-only and dynamically paged, which ought to be better than allocating the trampoline. This is difficult to test with gcc. One can only use -O0 at present. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63668. 
The original code, removed in the "rewrite" patch, was incorrect for
large structures, and required dynamic allocation of a trampoline on
every ffi_call.

Instead, allocate a 4k entry table of all possible structure returns.
The table is 80k, but is read-only and dynamically paged, which ought
to be better than allocating the trampoline.

This is difficult to test with gcc.  One can only use -O0 at present.
See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63668.
sparc: Add support for complex types 2014-11-12T08:36:09+00:00 Richard Henderson rth@twiddle.net 2014-10-26T20:16:03+00:00 ad89c2d9e93d5a713ae4113567b4ca6c4fbbf17c 






sparc: Handle more cases of structure return directly
2014-11-12T08:35:24+00:00

Richard Henderson
rth@twiddle.net

2014-10-25T23:24:41+00:00

20da5b41324de524ea3ee1f84f402828b7c332dc












sparc: Preprocess float point struct return
2014-11-12T08:35:24+00:00

Richard Henderson
rth@twiddle.net

2014-10-25T21:52:45+00:00

0686c2e71c8e094cf003f199e3f578bcdede43ba

We can eliminate recursion and speed structure return
by flattening a nested structure tree into a bitmask.





We can eliminate recursion and speed structure return
by flattening a nested structure tree into a bitmask.







sparc: Rewrite everything
2014-11-12T08:35:21+00:00

Richard Henderson
rth@twiddle.net

2014-10-24T23:10:48+00:00

2b27890ba77db6a23d37fc70897109e4b2803c2d

It's impossible to call between v8 and v9 ABIs, because of the stack bias
in the v9 ABI.  So let's not pretend it's just not implemented yet.  Split
the v9 code out to a separate file.

The register windows prevent ffi_call from setting up the entire stack
frame the assembly, but we needn't make an indirect call back to prep_args.





It's impossible to call between v8 and v9 ABIs, because of the stack bias
in the v9 ABI.  So let's not pretend it's just not implemented yet.  Split
the v9 code out to a separate file.

The register windows prevent ffi_call from setting up the entire stack
frame the assembly, but we needn't make an indirect call back to prep_args.