This repository has been archived by the owner on Oct 12, 2022. It is now read-only.
/
threadasm.S
335 lines (296 loc) · 8.61 KB
/
threadasm.S
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
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
/**
* Support code for mutithreading.
*
* Copyright: Copyright Mikola Lysenko 2005 - 2012.
* License: <a href="http://www.boost.org/LICENSE_1_0.txt">Boost License 1.0</a>.
* Authors: Mikola Lysenko, Martin Nowak, Kai Nacke
*/
/*
* Copyright Mikola Lysenko 2005 - 2012.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
/************************************************************************************
* POWER PC ASM BITS
************************************************************************************/
#if defined( __PPC64__ )
.text
.globl _D4core6thread18callWithStackShellFMDFPvZvZv
.align 2
.type _D4core6thread18callWithStackShellFMDFPvZvZv,@function
.section .opd,"aw",@progbits
_D4core6thread18callWithStackShellFMDFPvZvZv:
.align 3
.quad .L._D4core6thread18callWithStackShellFMDFPvZvZv
.quad .TOC.@tocbase
.quad 0
.text
/*
* Called with:
* r3: pointer context
* r4: pointer to function
*/
.L._D4core6thread18callWithStackShellFMDFPvZvZv:
.cfi_startproc
mflr 0
std 0, 16(1) // save LR
stdu 1, -256(1) // stack size: 18*8 + 112 = 256
.cfi_def_cfa_offset 256
.cfi_offset lr, 16
/* Save r14-r31 in general register save area */
std 14, (112 + 0 * 8)(1)
std 15, (112 + 1 * 8)(1)
std 16, (112 + 2 * 8)(1)
std 17, (112 + 3 * 8)(1)
std 18, (112 + 4 * 8)(1)
std 19, (112 + 5 * 8)(1)
std 20, (112 + 6 * 8)(1)
std 21, (112 + 7 * 8)(1)
std 22, (112 + 8 * 8)(1)
std 23, (112 + 9 * 8)(1)
std 24, (112 + 10 * 8)(1)
std 25, (112 + 11 * 8)(1)
std 26, (112 + 12 * 8)(1)
std 27, (112 + 13 * 8)(1)
std 28, (112 + 14 * 8)(1)
std 29, (112 + 15 * 8)(1)
std 30, (112 + 16 * 8)(1)
std 31, (112 + 17 * 8)(1)
/* Save r3-r10 in parameter save area of caller */
std 3, (256 + 48 + 0 * 8)(1)
std 4, (256 + 48 + 1 * 8)(1)
std 5, (256 + 48 + 2 * 8)(1)
std 6, (256 + 48 + 3 * 8)(1)
std 7, (256 + 48 + 4 * 8)(1)
std 8, (256 + 48 + 5 * 8)(1)
std 9, (256 + 48 + 6 * 8)(1)
std 10, (256 + 48 + 7 * 8)(1)
/* Save r2 in TOC save area */
std 2, 40(1)
/* Do not save r11, r12 and r13. */
/* Call delegate:
* r3: pointer to context
* r4: pointer to stack
*/
mr 5, 4
mr 4, 1
ld 6, 0(5)
ld 11, 16(5)
ld 2, 8(5)
mtctr 6
bctrl
nop
/* Restore r2 from TOC save area */
ld 2, 40(1)
/* Restore r3-r10 from local variable space */
ld 3, (256 + 48 + 0 * 8)(1)
ld 4, (256 + 48 + 1 * 8)(1)
ld 5, (256 + 48 + 2 * 8)(1)
ld 6, (256 + 48 + 3 * 8)(1)
ld 7, (256 + 48 + 4 * 8)(1)
ld 8, (256 + 48 + 5 * 8)(1)
ld 9, (256 + 48 + 6 * 8)(1)
ld 10, (256 + 48 + 7 * 8)(1)
/* Restore r14-r31 from general register save area */
ld 14, (112 + 0 * 8)(1)
ld 15, (112 + 1 * 8)(1)
ld 16, (112 + 2 * 8)(1)
ld 17, (112 + 3 * 8)(1)
ld 18, (112 + 4 * 8)(1)
ld 19, (112 + 5 * 8)(1)
ld 20, (112 + 6 * 8)(1)
ld 21, (112 + 7 * 8)(1)
ld 22, (112 + 8 * 8)(1)
ld 23, (112 + 9 * 8)(1)
ld 24, (112 + 10 * 8)(1)
ld 25, (112 + 11 * 8)(1)
ld 26, (112 + 12 * 8)(1)
ld 27, (112 + 13 * 8)(1)
ld 28, (112 + 14 * 8)(1)
ld 29, (112 + 15 * 8)(1)
ld 30, (112 + 16 * 8)(1)
ld 31, (112 + 17 * 8)(1)
addi 1, 1, 256
ld 0, 16(1)
mtlr 0
blr
.long 0
.quad 0
.Lend:
.size _D4core6thread18callWithStackShellFMDFPvZvZv, .Lend-.L._D4core6thread18callWithStackShellFMDFPvZvZv
.cfi_endproc
#elif defined( __ppc__ ) || defined( __PPC__ ) || defined( __powerpc__ )
/**
* Performs a context switch.
*
* r3 - old context pointer
* r4 - new context pointer
*
*/
.text
.align 2
.globl _fiber_switchContext
_fiber_switchContext:
/* Save linkage area */
mflr 0
mfcr 5
stw 0, 8(1)
stw 5, 4(1)
/* Save GPRs */
stw 11, (-1 * 4)(1)
stw 13, (-2 * 4)(1)
stw 14, (-3 * 4)(1)
stw 15, (-4 * 4)(1)
stw 16, (-5 * 4)(1)
stw 17, (-6 * 4)(1)
stw 18, (-7 * 4)(1)
stw 19, (-8 * 4)(1)
stw 20, (-9 * 4)(1)
stw 21, (-10 * 4)(1)
stw 22, (-11 * 4)(1)
stw 23, (-12 * 4)(1)
stw 24, (-13 * 4)(1)
stw 25, (-14 * 4)(1)
stw 26, (-15 * 4)(1)
stw 27, (-16 * 4)(1)
stw 28, (-17 * 4)(1)
stw 29, (-18 * 4)(1)
stw 30, (-19 * 4)(1)
stwu 31, (-20 * 4)(1)
/* We update the stack pointer here, since we do not want the GC to
scan the floating point registers. */
/* Save FPRs */
stfd 14, (-1 * 8)(1)
stfd 15, (-2 * 8)(1)
stfd 16, (-3 * 8)(1)
stfd 17, (-4 * 8)(1)
stfd 18, (-5 * 8)(1)
stfd 19, (-6 * 8)(1)
stfd 20, (-7 * 8)(1)
stfd 21, (-8 * 8)(1)
stfd 22, (-9 * 8)(1)
stfd 23, (-10 * 8)(1)
stfd 24, (-11 * 8)(1)
stfd 25, (-12 * 8)(1)
stfd 26, (-13 * 8)(1)
stfd 27, (-14 * 8)(1)
stfd 28, (-15 * 8)(1)
stfd 29, (-16 * 8)(1)
stfd 30, (-17 * 8)(1)
stfd 31, (-18 * 8)(1)
/* Update the old stack pointer */
stw 1, 0(3)
/* Set new stack pointer */
addi 1, 4, 20 * 4
/* Restore linkage area */
lwz 0, 8(1)
lwz 5, 4(1)
/* Restore GPRs */
lwz 11, (-1 * 4)(1)
lwz 13, (-2 * 4)(1)
lwz 14, (-3 * 4)(1)
lwz 15, (-4 * 4)(1)
lwz 16, (-5 * 4)(1)
lwz 17, (-6 * 4)(1)
lwz 18, (-7 * 4)(1)
lwz 19, (-8 * 4)(1)
lwz 20, (-9 * 4)(1)
lwz 21, (-10 * 4)(1)
lwz 22, (-11 * 4)(1)
lwz 23, (-12 * 4)(1)
lwz 24, (-13 * 4)(1)
lwz 25, (-14 * 4)(1)
lwz 26, (-15 * 4)(1)
lwz 27, (-16 * 4)(1)
lwz 28, (-17 * 4)(1)
lwz 29, (-18 * 4)(1)
lwz 30, (-19 * 4)(1)
lwz 31, (-20 * 4)(1)
/* Restore FPRs */
lfd 14, (-1 * 8)(4)
lfd 15, (-2 * 8)(4)
lfd 16, (-3 * 8)(4)
lfd 17, (-4 * 8)(4)
lfd 18, (-5 * 8)(4)
lfd 19, (-6 * 8)(4)
lfd 20, (-7 * 8)(4)
lfd 21, (-8 * 8)(4)
lfd 22, (-9 * 8)(4)
lfd 23, (-10 * 8)(4)
lfd 24, (-11 * 8)(4)
lfd 25, (-12 * 8)(4)
lfd 26, (-13 * 8)(4)
lfd 27, (-14 * 8)(4)
lfd 28, (-15 * 8)(4)
lfd 29, (-16 * 8)(4)
lfd 30, (-17 * 8)(4)
lfd 31, (-18 * 8)(4)
/* Set condition and link register */
mtcr 5
mtlr 0
/* Return and switch context */
blr
#elif defined(__mips__) && _MIPS_SIM == _ABIO32
/************************************************************************************
* MIPS ASM BITS
************************************************************************************/
/**
* Performs a context switch.
*
* $a0 - void** - ptr to old stack pointer
* $a1 - void* - new stack pointer
*
*/
.text
.globl fiber_switchContext
fiber_switchContext:
addiu $sp, $sp, -(10 * 4)
// fp regs and return address are stored below the stack
// because we don't want the GC to scan them.
#ifdef __mips_hard_float
#define ALIGN8(val) (val + (-val & 7))
#define BELOW (ALIGN8(6 * 8 + 4))
sdcl $f20, (0 * 8 - BELOW)($sp)
sdcl $f22, (1 * 8 - BELOW)($sp)
sdcl $f24, (2 * 8 - BELOW)($sp)
sdcl $f26, (3 * 8 - BELOW)($sp)
sdcl $f28, (4 * 8 - BELOW)($sp)
sdcl $f30, (5 * 8 - BELOW)($sp)
#endif
sw $ra, -4($sp)
sw $s0, (0 * 4)($sp)
sw $s1, (1 * 4)($sp)
sw $s2, (2 * 4)($sp)
sw $s3, (3 * 4)($sp)
sw $s4, (4 * 4)($sp)
sw $s5, (5 * 4)($sp)
sw $s6, (6 * 4)($sp)
sw $s7, (7 * 4)($sp)
sw $s8, (8 * 4)($sp)
sw $gp, (9 * 4)($sp)
// swap stack pointer
sw $sp, 0($a0)
move $sp, $a1
#ifdef __mips_hard_float
ldcl $f20, (0 * 8 - BELOW)($sp)
ldcl $f22, (1 * 8 - BELOW)($sp)
ldcl $f24, (2 * 8 - BELOW)($sp)
ldcl $f26, (3 * 8 - BELOW)($sp)
ldcl $f28, (4 * 8 - BELOW)($sp)
ldcl $f30, (5 * 8 - BELOW)($sp)
#endif
lw $ra, -4($sp)
lw $s0, (0 * 4)($sp)
lw $s1, (1 * 4)($sp)
lw $s2, (2 * 4)($sp)
lw $s3, (3 * 4)($sp)
lw $s4, (4 * 4)($sp)
lw $s5, (5 * 4)($sp)
lw $s6, (6 * 4)($sp)
lw $s7, (7 * 4)($sp)
lw $s8, (8 * 4)($sp)
lw $gp, (9 * 4)($sp)
addiu $sp, $sp, (10 * 4)
jr $ra // return
#endif