1 /* 2 * Copyright (C) 2008 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 * Inlined native functions. 18 */ 19 #ifndef _DALVIK_INLINENATIVE 20 #define _DALVIK_INLINENATIVE 21 22 /* startup/shutdown */ 23 bool dvmInlineNativeStartup(void); 24 void dvmInlineNativeShutdown(void); 25 26 /* 27 * Basic 4-argument inline operation handler. 28 */ 29 typedef bool (*InlineOp4Func)(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 30 JValue* pResult); 31 32 /* 33 * Table of inline operations. 34 * 35 * Try to keep this at a power-of-two size, so we don't have to multiply. 36 * 37 * TODO: might be to our advantage to generate a compact jump table on 38 * the heap at runtime (or just declare two static tables, one with full 39 * info and one with just function pointers). Especially useful if we decide 40 * to support other method call forms, e.g. /range. We can also just 41 * generate assembly code that knows how many args it needs and has the 42 * target address embedded. 43 */ 44 typedef struct InlineOperation { 45 InlineOp4Func func; /* MUST be first entry */ 46 const char* classDescriptor; 47 const char* methodName; 48 const char* methodSignature; 49 } InlineOperation; 50 51 /* Must be kept in sync w/ gDvmInlineOpsTable in InlineNative.c */ 52 typedef enum NativeInlineOps { 53 INLINE_EMPTYINLINEMETHOD = 0, 54 INLINE_STRING_CHARAT = 1, 55 INLINE_STRING_COMPARETO = 2, 56 INLINE_STRING_EQUALS = 3, 57 INLINE_STRING_INDEXOF_I = 4, 58 INLINE_STRING_INDEXOF_II = 5, 59 INLINE_STRING_LENGTH = 6, 60 INLINE_MATH_ABS_INT = 7, 61 INLINE_MATH_ABS_LONG = 8, 62 INLINE_MATH_ABS_FLOAT = 9, 63 INLINE_MATH_ABS_DOUBLE = 10, 64 INLINE_MATH_MIN_INT = 11, 65 INLINE_MATH_MAX_INT = 12, 66 INLINE_MATH_SQRT = 13, 67 INLINE_MATH_COS = 14, 68 INLINE_MATH_SIN = 15, 69 } NativeInlineOps; 70 71 /* 72 * Get the inlineops table. 73 */ 74 const InlineOperation* dvmGetInlineOpsTable(void); 75 int dvmGetInlineOpsTableLength(void); 76 77 /* 78 * The table, exposed so we can access it with C inlines. Prefer access 79 * through dvmGetInlineOpsTable(). 80 */ 81 extern const InlineOperation gDvmInlineOpsTable[]; 82 83 /* 84 * Perform the operation specified by "opIndex". 85 * 86 * We want the arguments to appear in the first 4 registers so they can 87 * be passed straight through to the handler function. Ideally on ARM 88 * they'll go into r0-r3 and stay there. 89 * 90 * Returns "true" if everything went normally, "false" if an exception 91 * was thrown. 92 */ 93 INLINE bool dvmPerformInlineOp4Std(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 94 JValue* pResult, int opIndex) 95 { 96 return (*gDvmInlineOpsTable[opIndex].func)(arg0, arg1, arg2, arg3, pResult); 97 } 98 99 /* 100 * Like the "std" version, but will emit profiling info. 101 */ 102 bool dvmPerformInlineOp4Dbg(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 103 JValue* pResult, int opIndex); 104 105 #endif /*_DALVIK_INLINENATIVE*/ 106
