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 /* 18 * Inlined native functions. 19 */ 20 #ifndef DALVIK_INLINENATIVE_H_ 21 #define DALVIK_INLINENATIVE_H_ 22 23 /* startup/shutdown */ 24 bool dvmInlineNativeStartup(void); 25 void dvmInlineNativeShutdown(void); 26 27 Method* dvmFindInlinableMethod(const char* classDescriptor, 28 const char* methodName, const char* methodSignature); 29 30 /* 31 * Basic 4-argument inline operation handler. 32 */ 33 typedef bool (*InlineOp4Func)(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 34 JValue* pResult); 35 36 /* 37 * Table of inline operations. 38 * 39 * Try to keep this at a power-of-two size, so we don't have to multiply. 40 * 41 * TODO: might be to our advantage to generate a compact jump table on 42 * the heap at runtime (or just declare two static tables, one with full 43 * info and one with just function pointers). Especially useful if we decide 44 * to support other method call forms, e.g. /range. We can also just 45 * generate assembly code that knows how many args it needs and has the 46 * target address embedded. 47 */ 48 struct InlineOperation { 49 InlineOp4Func func; /* MUST be first entry */ 50 const char* classDescriptor; 51 const char* methodName; 52 const char* methodSignature; 53 }; 54 55 /* 56 * Must be kept in sync w/ gDvmInlineOpsTable in InlineNative.cpp 57 * 58 * You should also add a test to libcore's IntrinsicTest. 59 */ 60 enum NativeInlineOps { 61 INLINE_EMPTYINLINEMETHOD = 0, 62 INLINE_STRING_CHARAT = 1, 63 INLINE_STRING_COMPARETO = 2, 64 INLINE_STRING_EQUALS = 3, 65 INLINE_STRING_FASTINDEXOF_II = 4, 66 INLINE_STRING_IS_EMPTY = 5, 67 INLINE_STRING_LENGTH = 6, 68 INLINE_MATH_ABS_INT = 7, 69 INLINE_MATH_ABS_LONG = 8, 70 INLINE_MATH_ABS_FLOAT = 9, 71 INLINE_MATH_ABS_DOUBLE = 10, 72 INLINE_MATH_MIN_INT = 11, 73 INLINE_MATH_MAX_INT = 12, 74 INLINE_MATH_SQRT = 13, 75 INLINE_MATH_COS = 14, 76 INLINE_MATH_SIN = 15, 77 INLINE_FLOAT_TO_INT_BITS = 16, 78 INLINE_FLOAT_TO_RAW_INT_BITS = 17, 79 INLINE_INT_BITS_TO_FLOAT = 18, 80 INLINE_DOUBLE_TO_LONG_BITS = 19, 81 INLINE_DOUBLE_TO_RAW_LONG_BITS = 20, 82 INLINE_LONG_BITS_TO_DOUBLE = 21, 83 INLINE_STRICT_MATH_ABS_INT = 22, 84 INLINE_STRICT_MATH_ABS_LONG = 23, 85 INLINE_STRICT_MATH_ABS_FLOAT = 24, 86 INLINE_STRICT_MATH_ABS_DOUBLE = 25, 87 INLINE_STRICT_MATH_MIN_INT = 26, 88 INLINE_STRICT_MATH_MAX_INT = 27, 89 INLINE_STRICT_MATH_SQRT = 28, 90 }; 91 92 /* 93 * Get the inlineops table. 94 */ 95 const InlineOperation* dvmGetInlineOpsTable(void); 96 int dvmGetInlineOpsTableLength(void); 97 98 /* 99 * The table, exposed so we can access it with C inlines. Prefer access 100 * through dvmGetInlineOpsTable(). 101 */ 102 extern const InlineOperation gDvmInlineOpsTable[]; 103 104 /* 105 * Perform the operation specified by "opIndex". 106 * 107 * We want the arguments to appear in the first 4 registers so they can 108 * be passed straight through to the handler function. Ideally on ARM 109 * they'll go into r0-r3 and stay there. 110 * 111 * Returns "true" if everything went normally, "false" if an exception 112 * was thrown. 113 */ 114 INLINE bool dvmPerformInlineOp4Std(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 115 JValue* pResult, int opIndex) 116 { 117 return (*gDvmInlineOpsTable[opIndex].func)(arg0, arg1, arg2, arg3, pResult); 118 } 119 120 /* 121 * Like the "std" version, but will emit profiling info. 122 */ 123 bool dvmPerformInlineOp4Dbg(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 124 JValue* pResult, int opIndex); 125 126 /* 127 * Return method & populate the table on first use. 128 */ 129 extern "C" Method* dvmResolveInlineNative(int opIndex); 130 131 /* 132 * The actual inline native definitions. 133 */ 134 bool javaLangString_charAt(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 135 JValue* pResult); 136 137 bool javaLangString_compareTo(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 138 JValue* pResult); 139 140 bool javaLangString_equals(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 141 JValue* pResult); 142 143 bool javaLangString_length(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 144 JValue* pResult); 145 146 bool javaLangString_isEmpty(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 147 JValue* pResult); 148 149 bool javaLangString_fastIndexOf_II(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 150 JValue* pResult); 151 152 bool javaLangMath_abs_int(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 153 JValue* pResult); 154 155 bool javaLangMath_abs_long(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 156 JValue* pResult); 157 158 bool javaLangMath_abs_float(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 159 JValue* pResult); 160 161 bool javaLangMath_abs_double(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 162 JValue* pResult); 163 164 bool javaLangMath_min_int(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 165 JValue* pResult); 166 167 bool javaLangMath_max_int(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 168 JValue* pResult); 169 170 bool javaLangMath_sqrt(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 171 JValue* pResult); 172 173 bool javaLangMath_cos(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 174 JValue* pResult); 175 176 bool javaLangMath_sin(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 177 JValue* pResult); 178 179 bool javaLangFloat_floatToIntBits(u4 arg0, u4 arg1, u4 arg2, u4 arg, 180 JValue* pResult); 181 182 bool javaLangFloat_floatToRawIntBits(u4 arg0, u4 arg1, u4 arg2, u4 arg, 183 JValue* pResult); 184 185 bool javaLangFloat_intBitsToFloat(u4 arg0, u4 arg1, u4 arg2, u4 arg, 186 JValue* pResult); 187 188 bool javaLangDouble_doubleToLongBits(u4 arg0, u4 arg1, u4 arg2, u4 arg, 189 JValue* pResult); 190 191 bool javaLangDouble_longBitsToDouble(u4 arg0, u4 arg1, u4 arg2, u4 arg, 192 JValue* pResult); 193 194 bool javaLangDouble_doubleToRawLongBits(u4 arg0, u4 arg1, u4 arg2, 195 u4 arg, JValue* pResult); 196 197 bool javaLangDouble_longBitsToDouble(u4 arg0, u4 arg1, u4 arg2, u4 arg, 198 JValue* pResult); 199 200 #endif // DALVIK_INLINENATIVE_H_ 201
