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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_H_
     18 #define DALVIK_VM_COMPILER_UTILITY_H_
     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     intptr_t *elemList;
     43 } GrowableList;
     44 
     45 typedef struct GrowableListIterator {
     46     GrowableList *list;
     47     size_t idx;
     48     size_t size;
     49 } GrowableListIterator;
     50 
     51 #define GET_ELEM_N(LIST, TYPE, N) (((TYPE*) LIST->elemList)[N])
     52 
     53 #define BLOCK_NAME_LEN 80
     54 
     55 /* Forward declarations */
     56 struct LIR;
     57 struct BasicBlock;
     58 
     59 void dvmInitGrowableList(GrowableList *gList, size_t initLength);
     60 void dvmInsertGrowableList(GrowableList *gList, intptr_t elem);
     61 void dvmGrowableListIteratorInit(GrowableList *gList,
     62                                  GrowableListIterator *iterator);
     63 intptr_t dvmGrowableListIteratorNext(GrowableListIterator *iterator);
     64 intptr_t dvmGrowableListGetElement(const GrowableList *gList, size_t idx);
     65 
     66 BitVector* dvmCompilerAllocBitVector(unsigned int startBits, bool expandable);
     67 bool dvmCompilerSetBit(BitVector* pBits, unsigned int num);
     68 bool dvmCompilerClearBit(BitVector* pBits, unsigned int num);
     69 void dvmCompilerMarkAllBits(BitVector *pBits, bool set);
     70 void dvmDebugBitVector(char *msg, const BitVector *bv, int length);
     71 void dvmDumpLIRInsn(struct LIR *lir, unsigned char *baseAddr);
     72 void dvmDumpResourceMask(struct LIR *lir, u8 mask, const char *prefix);
     73 void dvmDumpBlockBitVector(const GrowableList *blocks, char *msg,
     74                            const BitVector *bv, int length);
     75 void dvmGetBlockName(struct BasicBlock *bb, char *name);
     76 void dvmCompilerCacheFlush(long start, long end, long flags);
     77 void dvmCompilerCacheClear(char *start, size_t size);
     78 
     79 
     80 #endif  // DALVIK_COMPILER_UTILITY_H_
     81