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comparison libffi/src/arc/arcompact.S @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 /* -----------------------------------------------------------------------
2 arcompact.S - Copyright (c) 2013 Synposys, Inc. (www.synopsys.com)
3
4 ARCompact Foreign Function Interface
5
6 Permission is hereby granted, free of charge, to any person obtaining
7 a copy of this software and associated documentation files (the
8 ``Software''), to deal in the Software without restriction, including
9 without limitation the rights to use, copy, modify, merge, publish,
10 distribute, sublicense, and/or sell copies of the Software, and to
11 permit persons to whom the Software is furnished to do so, subject to
12 the following conditions:
13
14 The above copyright notice and this permission notice shall be included
15 in all copies or substantial portions of the Software.
16
17 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 IN NO EVENT SHALL RENESAS TECHNOLOGY BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 OTHER DEALINGS IN THE SOFTWARE.
24 ----------------------------------------------------------------------- */
25
26 #define LIBFFI_ASM
27 #include <fficonfig.h>
28 #include <ffi.h>
29 #ifdef HAVE_MACHINE_ASM_H
30 #include <machine/asm.h>
31 #else
32 #define CNAME(x) x
33 #define ENTRY(x) .globl CNAME(x)` .type CNAME(x),%function` CNAME(x):
34 #endif
35
36 .text
37
38 /* R0: ffi_prep_args */
39 /* R1: &ecif */
40 /* R2: cif->bytes */
41 /* R3: fig->flags */
42 /* R4: ecif.rvalue */
43 /* R5: fn */
44 ENTRY(ffi_call_ARCompact)
45 /* Save registers. */
46 st.a fp, [sp, -4] /* fp + 20, fp */
47 push_s blink /* fp + 16, blink */
48 st.a r4, [sp, -4] /* fp + 12, ecif.rvalue */
49 push_s r3 /* fp + 8, fig->flags */
50 st.a r5, [sp, -4] /* fp + 4, fn */
51 push_s r2 /* fp + 0, cif->bytes */
52 mov fp, sp
53
54 /* Make room for all of the new args. */
55 sub sp, sp, r2
56
57 /* Place all of the ffi_prep_args in position. */
58 /* ffi_prep_args(char *stack, extended_cif *ecif) */
59 /* R1 already set. */
60
61 /* And call. */
62 jl_s.d [r0]
63 mov_s r0, sp
64
65 ld.ab r12, [fp, 4] /* cif->bytes */
66 ld.ab r11, [fp, 4] /* fn */
67
68 /* Move first 8 parameters in registers... */
69 ld_s r0, [sp]
70 ld_s r1, [sp, 4]
71 ld_s r2, [sp, 8]
72 ld_s r3, [sp, 12]
73 ld r4, [sp, 16]
74 ld r5, [sp, 20]
75 ld r6, [sp, 24]
76 ld r7, [sp, 28]
77
78 /* ...and adjust the stack. */
79 min r12, r12, 32
80
81 /* Call the function. */
82 jl.d [r11]
83 add sp, sp, r12
84
85 mov sp, fp
86 pop_s r3 /* fig->flags, return type */
87 pop_s r2 /* ecif.rvalue, pointer for return value */
88
89 /* If the return value pointer is NULL, assume no return value. */
90 breq.d r2, 0, epilogue
91 pop_s blink
92
93 /* Return INT. */
94 brne r3, FFI_TYPE_INT, return_double
95 b.d epilogue
96 st_s r0, [r2]
97
98 return_double:
99 brne r3, FFI_TYPE_DOUBLE, epilogue
100 st_s r0, [r2]
101 st_s r1, [r2,4]
102
103 epilogue:
104 j_s.d [blink]
105 ld.ab fp, [sp, 4]
106
107 ENTRY(ffi_closure_ARCompact)
108 st.a r0, [sp, -32]
109 st_s r1, [sp, 4]
110 st_s r2, [sp, 8]
111 st_s r3, [sp, 12]
112 st r4, [sp, 16]
113 st r5, [sp, 20]
114 st r6, [sp, 24]
115 st r7, [sp, 28]
116
117 /* pointer to arguments */
118 mov_s r2, sp
119
120 /* return value goes here */
121 sub sp, sp, 8
122 mov_s r1, sp
123
124 push_s blink
125
126 bl.d ffi_closure_inner_ARCompact
127 mov_s r0, r8 /* codeloc, set by trampoline */
128
129 pop_s blink
130
131 /* set return value to r1:r0 */
132 pop_s r0
133 pop_s r1
134 j_s.d [blink]
135 add_s sp, sp, 32