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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