1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
changecom(`/*', `*/')dnl
/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2007-2011. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*/
`#ifndef HIPE_SPARC_ASM_H
#define HIPE_SPARC_ASM_H'
/*
* Tunables.
*/
define(LEAF_WORDS,16)dnl number of stack words for leaf functions
define(NR_ARG_REGS,4)dnl admissible values are 0 to 6, inclusive
`#define SPARC_LEAF_WORDS 'LEAF_WORDS
`#define SPARC_NR_ARG_REGS 'NR_ARG_REGS
`#define NR_ARG_REGS 'NR_ARG_REGS
`#ifdef ASM'
/*
* Only assembler stuff from here on (when included from *.S)
*/
/*
* Reserved registers.
*/
`#define RA %o7'
`#define P %i0'
`#define NSP %i1'
`#define HP %i2'
`#define TEMP_RA %i3'
/*
* Context switching macros.
*
* RESTORE_CONTEXT and RESTORE_CONTEXT_QUICK do not affect
* the condition register.
*/
`#define SAVE_CONTEXT_QUICK \
mov RA, TEMP_RA'
`#define RESTORE_CONTEXT_QUICK \
mov TEMP_RA, RA'
`#define SAVE_CACHED_STATE \
st HP, [P+P_HP]; \
st NSP, [P+P_NSP]'
`#define RESTORE_CACHED_STATE \
ld [P+P_HP], HP; \
ld [P+P_NSP], NSP'
`#define SAVE_CONTEXT_BIF \
mov RA, TEMP_RA; \
st HP, [P+P_HP]'
`#define RESTORE_CONTEXT_BIF \
mov TEMP_RA, RA; /* XXX unnecessary */\
ld [P+P_HP], HP'
`#define SAVE_CONTEXT_GC \
mov RA, TEMP_RA; \
st RA, [P+P_NRA]; \
st NSP, [P+P_NSP]; \
st HP, [P+P_HP]'
`#define RESTORE_CONTEXT_GC \
mov TEMP_RA, RA; /* XXX unnecessary */\
ld [P+P_HP], HP'
/*
* Argument (parameter) registers.
*/
define(defarg,`define(ARG$1,`$2')dnl
#`define ARG'$1 $2'
)dnl
ifelse(eval(NR_ARG_REGS >= 1),0,,
`defarg(0,`%o1')')dnl
ifelse(eval(NR_ARG_REGS >= 2),0,,
`defarg(1,`%o2')')dnl
ifelse(eval(NR_ARG_REGS >= 3),0,,
`defarg(2,`%o3')')dnl
ifelse(eval(NR_ARG_REGS >= 4),0,,
`defarg(3,`%o4')')dnl
ifelse(eval(NR_ARG_REGS >= 5),0,,
`defarg(4,`%o5')')dnl
ifelse(eval(NR_ARG_REGS >= 6),0,,
`defarg(5,`%o0')')dnl
/*
* TEMP_ARG0:
* Used in nbif_stack_trap_ra to preserve the return value.
* Must be a C callee-save register.
* Must be otherwise unused in the return path.
*
* TEMP_ARG0:
* Used in hipe_sparc_inc_stack to preserve the return address
* (TEMP_RA contains the caller's saved return address).
* Must be a C callee-save register.
* Must be otherwise unused in the call path.
*
* TEMP_ARG0:
* Used to pass the callee address in native-to-BEAM traps
* (nbif_callemu).
* Must be otherwise unused in the call path.
*
* TEMP_ARG1:
* Used to pass the callee arity in native-to-BEAM traps
* (nbif_callemu).
* Must be otherwise unused in the call path.
*/
`#define TEMP_ARG0 %i4'
`#define TEMP_ARG1 %i5'
dnl XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
dnl X X
dnl X hipe_sparc_glue.S support X
dnl X X
dnl XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
dnl
dnl LOAD_ARG_REGS
dnl
define(LAR_1,`ld [P+P_ARG$1], ARG$1 ; ')dnl
define(LAR_N,`ifelse(eval($1 >= 0),0,,`LAR_N(eval($1-1))LAR_1($1)')')dnl
define(LOAD_ARG_REGS,`LAR_N(eval(NR_ARG_REGS-1))')dnl
`#define LOAD_ARG_REGS 'LOAD_ARG_REGS
dnl
dnl STORE_ARG_REGS
dnl
define(SAR_1,`st ARG$1, [P+P_ARG$1] ; ')dnl
define(SAR_N,`ifelse(eval($1 >= 0),0,,`SAR_N(eval($1-1))SAR_1($1)')')dnl
define(STORE_ARG_REGS,`SAR_N(eval(NR_ARG_REGS-1))')dnl
`#define STORE_ARG_REGS 'STORE_ARG_REGS
dnl XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
dnl X X
dnl X hipe_arm_bifs.m4 support X
dnl X X
dnl XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
dnl
dnl NBIF_ARG(DST,ARITY,ARGNO)
dnl Access a formal parameter.
dnl It will be a memory load via NSP when ARGNO >= NR_ARG_REGS.
dnl It will be a register move when 0 <= ARGNO < NR_ARG_REGS; if
dnl the source and destination are the same, the move is suppressed.
dnl
define(NBIF_MOVE_REG,`ifelse($1,$2,`! mov $2, $1',`mov $2, $1')')dnl
define(NBIF_REG_ARG,`NBIF_MOVE_REG($1,ARG$2)')dnl
define(NBIF_STK_LOAD,`ld [NSP+$2], $1')dnl
define(NBIF_STK_ARG,`NBIF_STK_LOAD($1,eval(4*(($2-$3)-1)))')dnl
define(NBIF_ARG,`ifelse(eval($3 >= NR_ARG_REGS),0,`NBIF_REG_ARG($1,$3)',`NBIF_STK_ARG($1,$2,$3)')')dnl
`/* #define NBIF_ARG_1_0 'NBIF_ARG(r1,1,0)` */'
`/* #define NBIF_ARG_2_0 'NBIF_ARG(r1,2,0)` */'
`/* #define NBIF_ARG_2_1 'NBIF_ARG(r2,2,1)` */'
`/* #define NBIF_ARG_3_0 'NBIF_ARG(r1,3,0)` */'
`/* #define NBIF_ARG_3_1 'NBIF_ARG(r2,3,1)` */'
`/* #define NBIF_ARG_3_2 'NBIF_ARG(r3,3,2)` */'
`/* #define NBIF_ARG_5_0 'NBIF_ARG(r1,5,0)` */'
`/* #define NBIF_ARG_5_1 'NBIF_ARG(r2,5,1)` */'
`/* #define NBIF_ARG_5_2 'NBIF_ARG(r3,5,2)` */'
`/* #define NBIF_ARG_5_3 'NBIF_ARG(r4,5,3)` */'
`/* #define NBIF_ARG_5_4 'NBIF_ARG(r5,5,4)` */'
dnl
dnl NBIF_RET(ARITY)
dnl Generates a return from a native BIF, taking care to pop
dnl any stacked formal parameters.
dnl May only be used in BIF/primop wrappers where SAVE_CONTEXT
dnl has saved RA in TEMP_RA.
dnl
define(NSP_RETN,`jmpl TEMP_RA+8, %g0
add NSP, $1, NSP')dnl
define(NSP_RET0,`jmpl TEMP_RA+8, %g0
nop')dnl
define(RET_POP,`ifelse(eval($1 > NR_ARG_REGS),0,0,eval(4*($1 - NR_ARG_REGS)))')dnl
define(NBIF_RET_N,`ifelse(eval($1),0,`NSP_RET0',`NSP_RETN($1)')')dnl
define(NBIF_RET,`NBIF_RET_N(eval(RET_POP($1)))')dnl
`/* #define NBIF_RET_0 'NBIF_RET(0)` */'
`/* #define NBIF_RET_1 'NBIF_RET(1)` */'
`/* #define NBIF_RET_2 'NBIF_RET(2)` */'
`/* #define NBIF_RET_3 'NBIF_RET(3)` */'
`/* #define NBIF_RET_5 'NBIF_RET(5)` */'
dnl
dnl QUICK_CALL_RET(CFUN,ARITY)
dnl Used in nocons_nofail and noproc primop interfaces to optimise
dnl SAVE_CONTEXT_QUICK; call CFUN; nop; RESTORE_CONTEXT_QUICK; NBIF_RET(ARITY).
dnl
define(NBIF_POP_N,`ifelse(eval($1),0,`nop',`add NSP, $1, NSP')')dnl
define(QUICK_CALL_RET,`ba $1; NBIF_POP_N(eval(RET_POP($2)))')dnl
`/* #define QUICK_CALL_RET_F_0 'QUICK_CALL_RET(F,0)` */'
`/* #define QUICK_CALL_RET_F_1 'QUICK_CALL_RET(F,1)` */'
`/* #define QUICK_CALL_RET_F_2 'QUICK_CALL_RET(F,2)` */'
`/* #define QUICK_CALL_RET_F_3 'QUICK_CALL_RET(F,3)` */'
`/* #define QUICK_CALL_RET_F_5 'QUICK_CALL_RET(F,5)` */'
`#endif /* ASM */'
`#endif /* HIPE_SPARC_ASM_H */'
|
