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/* -----------------------------------------------------------------------
v9.S - Copyright (c) 2000, 2003, 2004, 2008 Red Hat, Inc.
SPARC 64-bit 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 THE AUTHORS OR COPYRIGHT
HOLDERS 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 "internal.h"
#ifdef SPARC64
#define C2(X, Y) X ## Y
#define C1(X, Y) C2(X, Y)
#ifdef __USER_LABEL_PREFIX__
# define C(Y) C1(__USER_LABEL_PREFIX__, Y)
#else
# define C(Y) Y
#endif
#define L(Y) C1(.L, Y)
#if defined(__sun__) && defined(__svr4__)
# define E(INDEX) .align 16
#else
# define E(INDEX) .align 16; .org 2b + INDEX * 16
#endif
#define STACK_BIAS 2047
.text
.align 8
.globl C(ffi_call_v9)
.type C(ffi_call_v9),#function
FFI_HIDDEN(C(ffi_call_v9))
C(ffi_call_v9):
.LUW0:
save %sp, %o4, %sp
.LUW1:
mov %i0, %o0 ! copy cif
add %sp, STACK_BIAS+128+48, %o1 ! load args area
mov %i2, %o2 ! copy rvalue
call C(ffi_prep_args_v9)
mov %i3, %o3 ! copy avalue
andcc %o0, SPARC_FLAG_FP_ARGS, %g0 ! need fp regs?
add %sp, 48, %sp ! deallocate prep frame
be,pt %xcc, 1f
mov %o0, %l0 ! save flags
ldd [%sp+STACK_BIAS+128], %f0 ! load all fp arg regs
ldd [%sp+STACK_BIAS+128+8], %f2
ldd [%sp+STACK_BIAS+128+16], %f4
ldd [%sp+STACK_BIAS+128+24], %f6
ldd [%sp+STACK_BIAS+128+32], %f8
ldd [%sp+STACK_BIAS+128+40], %f10
ldd [%sp+STACK_BIAS+128+48], %f12
ldd [%sp+STACK_BIAS+128+56], %f14
ldd [%sp+STACK_BIAS+128+64], %f16
ldd [%sp+STACK_BIAS+128+72], %f18
ldd [%sp+STACK_BIAS+128+80], %f20
ldd [%sp+STACK_BIAS+128+88], %f22
ldd [%sp+STACK_BIAS+128+96], %f24
ldd [%sp+STACK_BIAS+128+104], %f26
ldd [%sp+STACK_BIAS+128+112], %f28
ldd [%sp+STACK_BIAS+128+120], %f30
1: ldx [%sp+STACK_BIAS+128], %o0 ! load all int arg regs
ldx [%sp+STACK_BIAS+128+8], %o1
ldx [%sp+STACK_BIAS+128+16], %o2
ldx [%sp+STACK_BIAS+128+24], %o3
ldx [%sp+STACK_BIAS+128+32], %o4
ldx [%sp+STACK_BIAS+128+40], %o5
call %i1
mov %i5, %g5 ! load static chain
0: call 1f ! load pc in %o7
and %l0, SPARC_FLAG_RET_MASK, %l1
1: sll %l1, 4, %l1
add %o7, %l1, %o7 ! o7 = 0b + ret_type*16
jmp %o7+(2f-0b)
nop
.align 16
2:
E(SPARC_RET_VOID)
return %i7+8
nop
E(SPARC_RET_STRUCT)
add %sp, STACK_BIAS-64+128+48, %l2
sub %sp, 64, %sp
b 8f
stx %o0, [%l2]
E(SPARC_RET_UINT8)
and %o0, 0xff, %i0
return %i7+8
stx %o0, [%o2]
E(SPARC_RET_SINT8)
sll %o0, 24, %o0
sra %o0, 24, %i0
return %i7+8
stx %o0, [%o2]
E(SPARC_RET_UINT16)
sll %o0, 16, %o0
srl %o0, 16, %i0
return %i7+8
stx %o0, [%o2]
E(SPARC_RET_SINT16)
sll %o0, 16, %o0
sra %o0, 16, %i0
return %i7+8
stx %o0, [%o2]
E(SPARC_RET_UINT32)
srl %o0, 0, %i0
return %i7+8
stx %o0, [%o2]
E(SP_V9_RET_SINT32)
sra %o0, 0, %i0
return %i7+8
stx %o0, [%o2]
E(SPARC_RET_INT64)
stx %o0, [%i2]
return %i7+8
nop
E(SPARC_RET_INT128)
stx %o0, [%i2]
stx %o1, [%i2+8]
return %i7+8
nop
E(SPARC_RET_F_8)
st %f7, [%i2+7*4]
nop
st %f6, [%i2+6*4]
nop
E(SPARC_RET_F_6)
st %f5, [%i2+5*4]
nop
st %f4, [%i2+4*4]
nop
E(SPARC_RET_F_4)
std %f2, [%i2+2*4]
return %i7+8
std %f0, [%o2]
E(SPARC_RET_F_2)
return %i7+8
std %f0, [%o2]
E(SP_V9_RET_F_3)
st %f2, [%i2+2*4]
nop
st %f1, [%i2+1*4]
nop
E(SPARC_RET_F_1)
return %i7+8
st %f0, [%o2]
! Finish the SPARC_RET_STRUCT sequence.
.align 8
8: stx %o1, [%l2+8]
stx %o2, [%l2+16]
stx %o3, [%l2+24]
std %f0, [%l2+32]
std %f2, [%l2+40]
std %f4, [%l2+48]
std %f6, [%l2+56]
! Copy the structure into place.
srl %l0, SPARC_SIZEMASK_SHIFT, %o0 ! load size_mask
mov %i2, %o1 ! load dst
mov %l2, %o2 ! load src_gp
call C(ffi_struct_float_copy)
add %l2, 32, %o3 ! load src_fp
return %i7+8
nop
.LUW2:
.size C(ffi_call_v9), . - C(ffi_call_v9)
#undef STACKFRAME
#define STACKFRAME 336 /* 16*8 register window +
6*8 args backing store +
20*8 locals */
#define FP %fp+STACK_BIAS
/* ffi_closure_v9(...)
Receives the closure argument in %g1. */
.align 8
.globl C(ffi_go_closure_v9)
.type C(ffi_go_closure_v9),#function
FFI_HIDDEN(C(ffi_go_closure_v9))
C(ffi_go_closure_v9):
.LUW3:
save %sp, -STACKFRAME, %sp
.LUW4:
ldx [%g5+8], %o0
ldx [%g5+16], %o1
b 0f
mov %g5, %o2
.LUW5:
.size C(ffi_go_closure_v9), . - C(ffi_go_closure_v9)
.align 8
.globl C(ffi_closure_v9)
.type C(ffi_closure_v9),#function
FFI_HIDDEN(C(ffi_closure_v9))
C(ffi_closure_v9):
.LUW6:
save %sp, -STACKFRAME, %sp
.LUW7:
ldx [%g1+FFI_TRAMPOLINE_SIZE], %o0
ldx [%g1+FFI_TRAMPOLINE_SIZE+8], %o1
ldx [%g1+FFI_TRAMPOLINE_SIZE+16], %o2
0:
! Store all of the potential argument registers in va_list format.
stx %i0, [FP+128+0]
stx %i1, [FP+128+8]
stx %i2, [FP+128+16]
stx %i3, [FP+128+24]
stx %i4, [FP+128+32]
stx %i5, [FP+128+40]
! Store possible floating point argument registers too.
std %f0, [FP-128]
std %f2, [FP-120]
std %f4, [FP-112]
std %f6, [FP-104]
std %f8, [FP-96]
std %f10, [FP-88]
std %f12, [FP-80]
std %f14, [FP-72]
std %f16, [FP-64]
std %f18, [FP-56]
std %f20, [FP-48]
std %f22, [FP-40]
std %f24, [FP-32]
std %f26, [FP-24]
std %f28, [FP-16]
std %f30, [FP-8]
! Call ffi_closure_sparc_inner to do the bulk of the work.
add %fp, STACK_BIAS-160, %o3
add %fp, STACK_BIAS+128, %o4
call C(ffi_closure_sparc_inner_v9)
add %fp, STACK_BIAS-128, %o5
0: call 1f ! load pc in %o7
and %o0, SPARC_FLAG_RET_MASK, %o0
1: sll %o0, 4, %o0 ! o2 = i2 * 16
add %o7, %o0, %o7 ! o7 = 0b + i2*16
jmp %o7+(2f-0b)
nop
! Note that we cannot load the data in the delay slot of
! the return insn because the data is in the stack frame
! that is deallocated by the return.
.align 16
2:
E(SPARC_RET_VOID)
return %i7+8
nop
E(SPARC_RET_STRUCT)
ldx [FP-160], %i0
ldd [FP-160], %f0
b 8f
ldx [FP-152], %i1
E(SPARC_RET_UINT8)
ldub [FP-160+7], %i0
return %i7+8
nop
E(SPARC_RET_SINT8)
ldsb [FP-160+7], %i0
return %i7+8
nop
E(SPARC_RET_UINT16)
lduh [FP-160+6], %i0
return %i7+8
nop
E(SPARC_RET_SINT16)
ldsh [FP-160+6], %i0
return %i7+8
nop
E(SPARC_RET_UINT32)
lduw [FP-160+4], %i0
return %i7+8
nop
E(SP_V9_RET_SINT32)
ldsw [FP-160+4], %i0
return %i7+8
nop
E(SPARC_RET_INT64)
ldx [FP-160], %i0
return %i7+8
nop
E(SPARC_RET_INT128)
ldx [FP-160], %i0
ldx [FP-160+8], %i1
return %i7+8
nop
E(SPARC_RET_F_8)
ld [FP-160+7*4], %f7
nop
ld [FP-160+6*4], %f6
nop
E(SPARC_RET_F_6)
ld [FP-160+5*4], %f5
nop
ld [FP-160+4*4], %f4
nop
E(SPARC_RET_F_4)
ldd [FP-160], %f0
ldd [FP-160+8], %f2
return %i7+8
nop
E(SPARC_RET_F_2)
ldd [FP-160], %f0
return %i7+8
nop
E(SP_V9_RET_F_3)
ld [FP-160+2*4], %f2
nop
ld [FP-160+1*4], %f1
nop
E(SPARC_RET_F_1)
ld [FP-160], %f0
return %i7+8
nop
! Finish the SPARC_RET_STRUCT sequence.
.align 8
8: ldd [FP-152], %f2
ldx [FP-144], %i2
ldd [FP-144], %f4
ldx [FP-136], %i3
ldd [FP-136], %f6
return %i7+8
nop
.LUW8:
.size C(ffi_closure_v9), . - C(ffi_closure_v9)
#ifdef HAVE_RO_EH_FRAME
.section ".eh_frame",#alloc
#else
.section ".eh_frame",#alloc,#write
#endif
#ifdef HAVE_AS_SPARC_UA_PCREL
# define FDE_RANGE(B, E) .long %r_disp32(B), E - B
#else
# define FDE_RANGE(B, E) .align 8; .xword B, E - B
#endif
.align 8
.LCIE:
.long .LECIE - .LSCIE ! CIE Length
.LSCIE:
.long 0 ! CIE Identifier Tag
.byte 1 ! CIE Version
.ascii "zR\0" ! CIE Augmentation
.byte 4 ! CIE Code Alignment Factor
.byte 0x78 ! CIE Data Alignment Factor
.byte 15 ! CIE RA Column
.byte 1 ! Augmentation size
#ifdef HAVE_AS_SPARC_UA_PCREL
.byte 0x1b ! FDE Encoding (pcrel sdata4)
#else
.byte 0x50 ! FDE Encoding (aligned absolute)
#endif
.byte 0xc, 14, 0xff, 0xf ! DW_CFA_def_cfa, %o6, offset 0x7ff
.align 8
.LECIE:
.long .LEFDE1 - .LSFDE1 ! FDE Length
.LSFDE1:
.long .LSFDE1 - .LCIE ! FDE CIE offset
FDE_RANGE(.LUW0, .LUW2)
.byte 0 ! Augmentation size
.byte 0x40+1 ! DW_CFA_advance_loc 4
.byte 0xd, 30 ! DW_CFA_def_cfa_register, %i6
.byte 0x2d ! DW_CFA_GNU_window_save
.byte 0x9, 15, 31 ! DW_CFA_register, %o7, %i7
.align 8
.LEFDE1:
.long .LEFDE2 - .LSFDE2 ! FDE Length
.LSFDE2:
.long .LSFDE2 - .LCIE ! FDE CIE offset
FDE_RANGE(.LUW3, .LUW5)
.byte 0 ! Augmentation size
.byte 0x40+1 ! DW_CFA_advance_loc 4
.byte 0xd, 30 ! DW_CFA_def_cfa_register, %i6
.byte 0x2d ! DW_CFA_GNU_window_save
.byte 0x9, 15, 31 ! DW_CFA_register, %o7, %i7
.align 8
.LEFDE2:
.long .LEFDE3 - .LSFDE3 ! FDE Length
.LSFDE3:
.long .LSFDE3 - .LCIE ! FDE CIE offset
FDE_RANGE(.LUW6, .LUW8)
.byte 0 ! Augmentation size
.byte 0x40+1 ! DW_CFA_advance_loc 4
.byte 0xd, 30 ! DW_CFA_def_cfa_register, %i6
.byte 0x2d ! DW_CFA_GNU_window_save
.byte 0x9, 15, 31 ! DW_CFA_register, %o7, %i7
.align 8
.LEFDE3:
#endif /* SPARC64 */
#ifdef __linux__
.section .note.GNU-stack,"",@progbits
#endif