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1 /*
2  * Copyright (C) 2009 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef _DALVIK_VM_COMPILER_UTILITY
18 #define _DALVIK_VM_COMPILER_UTILITY
19 
20 #include "Dalvik.h"
21 
22 /* Each arena page has some overhead, so take a few bytes off 8k */
23 #define ARENA_DEFAULT_SIZE 8100
24 
25 /* Allocate the initial memory block for arena-based allocation */
26 bool dvmCompilerHeapInit(void);
27 
28 typedef struct ArenaMemBlock {
29     size_t blockSize;
30     size_t bytesAllocated;
31     struct ArenaMemBlock *next;
32     char ptr[0];
33 } ArenaMemBlock;
34 
35 void *dvmCompilerNew(size_t size, bool zero);
36 
37 void dvmCompilerArenaReset(void);
38 
39 typedef struct GrowableList {
40     size_t numAllocated;
41     size_t numUsed;
42     void **elemList;
43 } GrowableList;
44 
45 #define GET_ELEM_N(LIST, TYPE, N) (((TYPE*) LIST->elemList)[N])
46 
47 struct LIR;
48 
49 void dvmInitGrowableList(GrowableList *gList, size_t initLength);
50 void dvmInsertGrowableList(GrowableList *gList, void *elem);
51 BitVector* dvmCompilerAllocBitVector(int startBits, bool expandable);
52 bool dvmCompilerSetBit(BitVector* pBits, int num);
53 void dvmDebugBitVector(char *msg, const BitVector *bv, int length);
54 void dvmDumpLIRInsn(struct LIR *lir, unsigned char *baseAddr);
55 void dvmDumpResourceMask(struct LIR *lir, u8 mask, const char *prefix);
56 
57 #endif /* _DALVIK_COMPILER_UTILITY */
58