/* -----------------------------------------------------------------------
unix.S - Copyright (c) 1998 Red Hat, Inc.
Copyright (c) 2000 Hewlett Packard Company
IA64/unix Foreign Function Interface
Primary author: Hans Boehm, HP Labs
Loosely modeled on Cygnus code for other platforms.
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 <fficonfig.h>
#include <ffi.h>
#include "ia64_flags.h"
.pred.safe_across_calls p1-p5,p16-p63
.text
/* int ffi_call_unix (struct ia64_args *stack, PTR64 rvalue,
void (*fn)(), int flags)
.align 16
.global ffi_call_unix
.proc ffi_call_unix
ffi_call_unix:
.prologue
/* Bit o trickiness. We actually share a stack frame with ffi_call.
Rely on the fact that ffi_call uses a vframe and don't bother
tracking one here at all. */
.fframe 0
.save ar.pfs, r36 // loc0
alloc loc0 = ar.pfs, 4, 3, 8, 0
.save rp, loc1
mov loc1 = b0
.body
add r16 = 16, in0
mov loc2 = gp
mov r8 = in1
/* Load up all of the argument registers. */
ldf.fill f8 = [in0], 32
ldf.fill f9 = [r16], 32
ldf.fill f11 = [r16], 32
ldf.fill f13 = [r16], 32
ldf.fill f15 = [r16], 24
ld8 out1 = [r16], 16
ld8 out3 = [r16], 16
ld8 out5 = [r16], 16
ld8 out7 = [r16]
/* Deallocate the register save area from the stack frame. */
mov sp = in0
/* Call the target function. */
ld8 r16 = [in2], 8
mov b6 = r16
br.call.sptk.many b0 = b6
/* Dispatch to handle return value. */
mov gp = loc2
zxt1 r16 = in3
addl r18 = @ltoffx(.Lst_table), gp
mov b0 = loc1
shr in3 = in3, 8
br b6
.Lst_void:
br.ret.sptk.many b0
zxt1 r8 = r8
br.ret.sptk.many b0
sxt1 r8 = r8
br.ret.sptk.many b0
zxt2 r8 = r8
br.ret.sptk.many b0
sxt2 r8 = r8
br.ret.sptk.many b0
zxt4 r8 = r8
br.ret.sptk.many b0
sxt4 r8 = r8
br.ret.sptk.many b0
st8 [in1] = r8
br.ret.sptk.many b0
stfs [in1] = f8
br.ret.sptk.many b0
stfd [in1] = f8
br.ret.sptk.many b0
stfe [in1] = f8
br.ret.sptk.many b0
.Lst_small_struct:
add sp = -16, sp
cmp.lt p6, p0 = 8, in3
cmp.lt p7, p0 = 16, in3
cmp.lt p8, p0 = 24, in3
add r17 = 16, sp
add r18 = 24, sp
(p6) st8 [r16] = r9
mov out0 = in1
(p7) st8 [r17] = r10
(p8) st8 [r18] = r11
mov out1 = sp
mov out2 = in3
br.call.sptk.many b0 = memcpy#
mov b0 = loc1
mov gp = loc2
br.ret.sptk.many b0
.Lst_hfa_float:
add r16 = 4, in1
cmp.lt p6, p0 = 4, in3
(p6) stfs [r16] = f9, 8
cmp.lt p7, p0 = 8, in3
cmp.lt p8, p0 = 12, in3
(p8) stfs [r16] = f11, 8
cmp.lt p9, p0 = 16, in3
cmp.lt p10, p0 = 20, in3
(p10) stfs [r16] = f13, 8
cmp.lt p6, p0 = 24, in3
cmp.lt p7, p0 = 28, in3
(p7) stfs [r16] = f15
br.ret.sptk.many b0
.Lst_hfa_double:
add r16 = 8, in1
cmp.lt p6, p0 = 8, in3
(p6) stfd [r16] = f9, 16
cmp.lt p7, p0 = 16, in3
cmp.lt p8, p0 = 24, in3
(p8) stfd [r16] = f11, 16
cmp.lt p9, p0 = 32, in3
cmp.lt p10, p0 = 40, in3
(p10) stfd [r16] = f13, 16
cmp.lt p6, p0 = 48, in3
cmp.lt p7, p0 = 56, in3
(p7) stfd [r16] = f15
br.ret.sptk.many b0
.Lst_hfa_ldouble:
add r16 = 16, in1
cmp.lt p6, p0 = 16, in3
(p6) stfe [r16] = f9, 32
cmp.lt p7, p0 = 32, in3
cmp.lt p8, p0 = 48, in3
(p8) stfe [r16] = f11, 32
cmp.lt p9, p0 = 64, in3
cmp.lt p10, p0 = 80, in3
(p10) stfe [r16] = f13, 32
cmp.lt p6, p0 = 96, in3
cmp.lt p7, p0 = 112, in3
(p7) stfe [r16] = f15
br.ret.sptk.many b0
.endp ffi_call_unix
.align 16
.global ffi_closure_unix
.proc ffi_closure_unix
#define FRAME_SIZE (8*16 + 8*8 + 8*16)
ffi_closure_unix:
.prologue
.save ar.pfs, r40 // loc0
alloc loc0 = ar.pfs, 8, 4, 4, 0
.fframe FRAME_SIZE
add r12 = -FRAME_SIZE, r12
.save rp, loc1
mov loc1 = b0
.save ar.unat, loc2
mov loc2 = ar.unat
.body
/* Retrieve closure pointer and real gp. */
mov out0 = gp
add gp = 16, gp
/* Spill all of the possible argument registers. */
add r16 = 16 + 8*16, sp
add r17 = 16 + 8*16 + 16, sp
stf.spill [r17] = f9, 32
mov loc3 = gp
stf.spill [r17] = f11, 32
stf.spill [r17] = f13, 32
stf.spill [r17] = f15, 24
st8.spill [r16] = in0, 16
.mem.offset 8, 0
st8.spill [r17] = in1, 16
add out1 = 16 + 8*16, sp
st8.spill [r16] = in2, 16
.mem.offset 8, 0
st8.spill [r17] = in3, 16
add out2 = 16, sp
st8.spill [r16] = in4, 16
.mem.offset 8, 0
st8.spill [r17] = in5, 16
mov out3 = r8
st8.spill [r16] = in6
.mem.offset 8, 0
st8.spill [r17] = in7
/* Invoke ffi_closure_unix_inner for the hard work. */
br.call.sptk.many b0 = ffi_closure_unix_inner
/* Dispatch to handle return value. */
mov gp = loc3
zxt1 r16 = r8
mov ar.pfs = loc0
mov b0 = loc1
mov ar.unat = loc2
shr r8 = r8, 8
add r16 = 16, sp
br b6
.Lld_void:
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.body
.copy_state 1
ld1 r8 = [r16]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.body
.copy_state 1
ld2 r8 = [r16]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.body
.copy_state 1
ld4 r8 = [r16]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.body
.copy_state 1
ld8 r8 = [r16]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.body
.copy_state 1
ldfs f8 = [r16]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.body
.copy_state 1
ldfd f8 = [r16]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.body
.copy_state 1
ldfe f8 = [r16]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.Lld_small_struct:
.body
.copy_state 1
add r17 = 8, r16
cmp.lt p6, p0 = 8, r8
cmp.lt p7, p0 = 16, r8
cmp.lt p8, p0 = 24, r8
(p6) ld8 r9 = [r17], 16
(p8) ld8 r11 = [r17]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.Lld_hfa_float:
.body
.copy_state 1
add r17 = 4, r16
cmp.lt p6, p0 = 4, r8
(p6) ldfs f9 = [r17], 8
cmp.lt p7, p0 = 8, r8
cmp.lt p8, p0 = 12, r8
(p8) ldfs f11 = [r17], 8
cmp.lt p9, p0 = 16, r8
cmp.lt p10, p0 = 20, r8
(p10) ldfs f13 = [r17], 8
cmp.lt p6, p0 = 24, r8
cmp.lt p7, p0 = 28, r8
(p7) ldfs f15 = [r17]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.Lld_hfa_double:
.body
.copy_state 1
add r17 = 8, r16
cmp.lt p6, p0 = 8, r8
(p6) ldfd f9 = [r17], 16
cmp.lt p7, p0 = 16, r8
cmp.lt p8, p0 = 24, r8
(p8) ldfd f11 = [r17], 16
cmp.lt p9, p0 = 32, r8
cmp.lt p10, p0 = 40, r8
(p10) ldfd f13 = [r17], 16
cmp.lt p6, p0 = 48, r8
cmp.lt p7, p0 = 56, r8
(p7) ldfd f15 = [r17]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.Lld_hfa_ldouble:
.body
.copy_state 1
add r17 = 16, r16
cmp.lt p6, p0 = 16, r8
(p6) ldfe f9 = [r17], 32
cmp.lt p7, p0 = 32, r8
cmp.lt p8, p0 = 48, r8
(p8) ldfe f11 = [r17], 32
cmp.lt p9, p0 = 64, r8
cmp.lt p10, p0 = 80, r8
(p10) ldfe f13 = [r17], 32
cmp.lt p6, p0 = 96, r8
cmp.lt p7, p0 = 112, r8
(p7) ldfe f15 = [r17]
.restore sp
add sp = FRAME_SIZE, sp
br.ret.sptk.many b0
.endp ffi_closure_unix
.section .rodata
.align 8
.Lst_table:
data8 @pcrel(.Lst_void) // FFI_TYPE_VOID
data8 @pcrel(.Lst_sint32) // FFI_TYPE_INT
data8 @pcrel(.Lst_float) // FFI_TYPE_FLOAT
data8 @pcrel(.Lst_double) // FFI_TYPE_DOUBLE
data8 @pcrel(.Lst_ldouble) // FFI_TYPE_LONGDOUBLE
data8 @pcrel(.Lst_uint8) // FFI_TYPE_UINT8
data8 @pcrel(.Lst_sint8) // FFI_TYPE_SINT8
data8 @pcrel(.Lst_uint16) // FFI_TYPE_UINT16
data8 @pcrel(.Lst_sint16) // FFI_TYPE_SINT16
data8 @pcrel(.Lst_uint32) // FFI_TYPE_UINT32
data8 @pcrel(.Lst_sint32) // FFI_TYPE_SINT32
data8 @pcrel(.Lst_int64) // FFI_TYPE_UINT64
data8 @pcrel(.Lst_int64) // FFI_TYPE_SINT64
data8 @pcrel(.Lst_void) // FFI_TYPE_STRUCT
data8 @pcrel(.Lst_int64) // FFI_TYPE_POINTER
data8 @pcrel(.Lst_small_struct) // FFI_IA64_TYPE_SMALL_STRUCT
data8 @pcrel(.Lst_hfa_float) // FFI_IA64_TYPE_HFA_FLOAT
data8 @pcrel(.Lst_hfa_double) // FFI_IA64_TYPE_HFA_DOUBLE
data8 @pcrel(.Lst_hfa_ldouble) // FFI_IA64_TYPE_HFA_LDOUBLE
.Lld_table:
data8 @pcrel(.Lld_void) // FFI_TYPE_VOID
data8 @pcrel(.Lld_int32) // FFI_TYPE_INT
data8 @pcrel(.Lld_float) // FFI_TYPE_FLOAT
data8 @pcrel(.Lld_double) // FFI_TYPE_DOUBLE
data8 @pcrel(.Lld_ldouble) // FFI_TYPE_LONGDOUBLE
data8 @pcrel(.Lld_int8) // FFI_TYPE_UINT8
data8 @pcrel(.Lld_int8) // FFI_TYPE_SINT8
data8 @pcrel(.Lld_int16) // FFI_TYPE_UINT16
data8 @pcrel(.Lld_int16) // FFI_TYPE_SINT16
data8 @pcrel(.Lld_int32) // FFI_TYPE_UINT32
data8 @pcrel(.Lld_int32) // FFI_TYPE_SINT32
data8 @pcrel(.Lld_int64) // FFI_TYPE_UINT64
data8 @pcrel(.Lld_int64) // FFI_TYPE_SINT64
data8 @pcrel(.Lld_void) // FFI_TYPE_STRUCT
data8 @pcrel(.Lld_int64) // FFI_TYPE_POINTER
data8 @pcrel(.Lld_small_struct) // FFI_IA64_TYPE_SMALL_STRUCT
data8 @pcrel(.Lld_hfa_float) // FFI_IA64_TYPE_HFA_FLOAT
data8 @pcrel(.Lld_hfa_double) // FFI_IA64_TYPE_HFA_DOUBLE
data8 @pcrel(.Lld_hfa_ldouble) // FFI_IA64_TYPE_HFA_LDOUBLE