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green
2001-04-22 18:22:43 +00:00
parent a8b0d40ff9
commit 7247436b5f
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93
libffi/src/sparc/v8.S
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/* -----------------------------------------------------------------------
v8.S - Copyright (c) 1996, 1997 Cygnus Solutions
Sparc Foreign Function Interface
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
``Software''), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
----------------------------------------------------------------------- */
#define LIBFFI_ASM
#include <ffi.h>
#define STACKFRAME 96 /* Minimum stack framesize for SPARC */
#define ARGS (64+4) /* Offset of register area in frame */
.text
.align 8
.globl ffi_call_V8
.globl _ffi_call_V8
ffi_call_V8:
_ffi_call_V8:
save %sp, -STACKFRAME, %sp
sub %sp, %i2, %sp ! alloca() space in stack for frame to set up
add %sp, STACKFRAME, %l0 ! %l0 has start of
! frame to set up
mov %l0, %o0 ! call routine to set up frame
call %i0
mov %i1, %o1 ! (delay)
ld [%l0+ARGS], %o0 ! call foreign function
ld [%l0+ARGS+4], %o1
ld [%l0+ARGS+8], %o2
ld [%l0+ARGS+12], %o3
ld [%l0+ARGS+16], %o4
ld [%l0+ARGS+20], %o5
call %i5
mov %l0, %sp ! (delay) switch to frame
nop ! STRUCT returning functions skip 12 instead of 8 bytes
! If the return value pointer is NULL, assume no return value.
tst %i4
bz done
nop
cmp %i3, FFI_TYPE_INT
be,a done
st %o0, [%i4] ! (delay)
cmp %i3, FFI_TYPE_FLOAT
be,a done
st %f0, [%i4+0] ! (delay)
cmp %i3, FFI_TYPE_SINT64
be longlong
cmp %i3, FFI_TYPE_DOUBLE
bne done
nop
st %f0, [%i4+0]
st %f1, [%i4+4]
done:
ret
restore
longlong:
st %o0, [%i4+0]
st %o1, [%i4+4]
ret
restore
.ffi_call_V8_end:
.size ffi_call_V8,.ffi_call_V8_end-ffi_call_V8