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
|
/* -*- Mode: asm; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* Version: MPL 1.1
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* This code is for MIPS using the O32 ABI. */
#include <sys/regdef.h>
#include <sys/asm.h>
.text
.globl PrepareAndDispatch
NARGSAVE=4 # extra space for the callee to use. gccism
# we can put our a0-a3 in our callers space.
LOCALSZ=2 # gp, ra
FRAMESZ=(((NARGSAVE+LOCALSZ)*SZREG)+ALSZ)&ALMASK
define(STUB_NAME, `Stub'$1`__14nsXPTCStubBase')
define(STUB_ENTRY,
` .globl 'STUB_NAME($1)`
.align 2
.type 'STUB_NAME($1)`,@function
.ent 'STUB_NAME($1)`, 0
'STUB_NAME($1)`:
.frame sp, FRAMESZ, ra
.set noreorder
.cpload t9
.set reorder
subu sp, FRAMESZ
.cprestore 16
li t0, '$1`
b sharedstub
.end 'STUB_NAME($1)`
')
define(SENTINEL_ENTRY, `')
include(xptcstubsdef.inc)
.globl sharedstub
.ent sharedstub
sharedstub:
REG_S ra, 20(sp)
REG_S a0, 24(sp)
REG_S a1, 28(sp)
REG_S a2, 32(sp)
REG_S a3, 36(sp)
# t0 is methodIndex
move a1, t0
# put the start of a1, a2, a3, and stack
move a2, sp
addi a2, 24 # have a2 point to sp + 24 (where a0 is)
# PrepareAndDispatch(that, methodIndex, args)
# a0 a1 a2
#
jal PrepareAndDispatch
REG_L ra, 20(sp)
REG_L a1, 28(sp)
REG_L a2, 32(sp)
addu sp, FRAMESZ
j ra
.end sharedstub
|