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 */
dvmPerformInlineOp4Std(u4 arg0,u4 arg1,u4 arg2,u4 arg3,JValue * pResult,int opIndex)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