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
|
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Mterp entry point and support functions.
*/
#include "Dalvik.h"
#include "mterp/Mterp.h"
#include <stddef.h>
/*
* Verify some constants used by the mterp interpreter.
*/
bool dvmCheckAsmConstants()
{
bool failed = false;
#ifndef DVM_NO_ASM_INTERP
#ifndef DVM_JMP_TABLE_MTERP
extern void* dvmAsmInstructionStart[];
extern void* dvmAsmInstructionEnd[];
#endif
#define ASM_DEF_VERIFY
#include "mterp/common/asm-constants.h"
if (failed) {
LOGE("Please correct the values in mterp/common/asm-constants.h");
dvmAbort();
}
#ifndef DVM_JMP_TABLE_MTERP
/*
* If we're using computed goto instruction transitions, make sure
* none of the handlers overflows the 64-byte limit. This won't tell
* which one did, but if any one is too big the total size will
* overflow.
*/
const int width = 64;
int interpSize = (uintptr_t) dvmAsmInstructionEnd -
(uintptr_t) dvmAsmInstructionStart;
if (interpSize != 0 && interpSize != kNumPackedOpcodes*width) {
LOGE("ERROR: unexpected asm interp size %d", interpSize);
LOGE("(did an instruction handler exceed %d bytes?)", width);
dvmAbort();
}
#endif
#endif // ndef DVM_NO_ASM_INTERP
return !failed;
}
/*
* "Mterp entry point.
*/
void dvmMterpStd(Thread* self)
{
/* configure mterp items */
self->interpSave.methodClassDex = self->interpSave.method->clazz->pDvmDex;
IF_LOGVV() {
char* desc = dexProtoCopyMethodDescriptor(
&self->interpSave.method->prototype);
LOGVV("mterp threadid=%d : %s.%s %s",
dvmThreadSelf()->threadId,
self->interpSave.method->clazz->descriptor,
self->interpSave.method->name,
desc);
free(desc);
}
//LOGI("self is %p, pc=%p, fp=%p", self, self->interpSave.pc,
// self->interpSave.curFrame);
//LOGI("first instruction is 0x%04x", self->interpSave.pc[0]);
/*
* Handle any ongoing profiling and prep for debugging
*/
if (self->interpBreak.ctl.subMode != 0) {
TRACE_METHOD_ENTER(self, self->interpSave.method);
self->debugIsMethodEntry = true; // Always true on startup
}
dvmMterpStdRun(self);
#ifdef LOG_INSTR
LOGD("|-- Leaving interpreter loop");
#endif
}
|
