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.c 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 }; 84 85 /* 86 * Get the inlineops table. 87 */ 88 const InlineOperation* dvmGetInlineOpsTable(void); 89 int dvmGetInlineOpsTableLength(void); 90 91 /* 92 * The table, exposed so we can access it with C inlines. Prefer access 93 * through dvmGetInlineOpsTable(). 94 */ 95 extern const InlineOperation gDvmInlineOpsTable[]; 96 97 /* 98 * Perform the operation specified by "opIndex". 99 * 100 * We want the arguments to appear in the first 4 registers so they can 101 * be passed straight through to the handler function. Ideally on ARM 102 * they'll go into r0-r3 and stay there. 103 * 104 * Returns "true" if everything went normally, "false" if an exception 105 * was thrown. 106 */ 107 INLINE bool dvmPerformInlineOp4Std(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 108 JValue* pResult, int opIndex) 109 { 110 return (*gDvmInlineOpsTable[opIndex].func)(arg0, arg1, arg2, arg3, pResult); 111 } 112 113 /* 114 * Like the "std" version, but will emit profiling info. 115 */ 116 bool dvmPerformInlineOp4Dbg(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 117 JValue* pResult, int opIndex); 118 119 /* 120 * Return method & populate the table on first use. 121 */ 122 extern "C" Method* dvmResolveInlineNative(int opIndex); 123 124 /* 125 * The actual inline native definitions. 126 */ 127 bool javaLangString_charAt(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 128 JValue* pResult); 129 130 bool javaLangString_compareTo(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 131 JValue* pResult); 132 133 bool javaLangString_equals(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 134 JValue* pResult); 135 136 bool javaLangString_length(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 137 JValue* pResult); 138 139 bool javaLangString_isEmpty(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 140 JValue* pResult); 141 142 bool javaLangString_fastIndexOf_II(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 143 JValue* pResult); 144 145 bool javaLangMath_abs_int(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 146 JValue* pResult); 147 148 bool javaLangMath_abs_long(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 149 JValue* pResult); 150 151 bool javaLangMath_abs_float(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 152 JValue* pResult); 153 154 bool javaLangMath_abs_double(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 155 JValue* pResult); 156 157 bool javaLangMath_min_int(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 158 JValue* pResult); 159 160 bool javaLangMath_max_int(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 161 JValue* pResult); 162 163 bool javaLangMath_sqrt(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 164 JValue* pResult); 165 166 bool javaLangMath_cos(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 167 JValue* pResult); 168 169 bool javaLangMath_sin(u4 arg0, u4 arg1, u4 arg2, u4 arg3, 170 JValue* pResult); 171 172 bool javaLangFloat_floatToIntBits(u4 arg0, u4 arg1, u4 arg2, u4 arg, 173 JValue* pResult); 174 175 bool javaLangFloat_floatToRawIntBits(u4 arg0, u4 arg1, u4 arg2, u4 arg, 176 JValue* pResult); 177 178 bool javaLangFloat_intBitsToFloat(u4 arg0, u4 arg1, u4 arg2, u4 arg, 179 JValue* pResult); 180 181 bool javaLangDouble_doubleToLongBits(u4 arg0, u4 arg1, u4 arg2, u4 arg, 182 JValue* pResult); 183 184 bool javaLangDouble_longBitsToDouble(u4 arg0, u4 arg1, u4 arg2, u4 arg, 185 JValue* pResult); 186 187 bool javaLangDouble_doubleToRawLongBits(u4 arg0, u4 arg1, u4 arg2, 188 u4 arg, JValue* pResult); 189 190 bool javaLangDouble_longBitsToDouble(u4 arg0, u4 arg1, u4 arg2, u4 arg, 191 JValue* pResult); 192 193 #endif // DALVIK_INLINENATIVE_H_ 194
