J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2005 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #include "util.h" |
| 27 | #include "MethodImpl.h" |
| 28 | #include "inStream.h" |
| 29 | #include "outStream.h" |
| 30 | |
| 31 | static jboolean |
| 32 | lineTable(PacketInputStream *in, PacketOutputStream *out) |
| 33 | { |
| 34 | jvmtiError error; |
| 35 | jint count = 0; |
| 36 | jvmtiLineNumberEntry *table = NULL; |
| 37 | jmethodID method; |
| 38 | jlocation firstCodeIndex; |
| 39 | jlocation lastCodeIndex; |
| 40 | jboolean isNative; |
| 41 | |
| 42 | /* JVMDI needed the class, but JVMTI does not so we ignore it */ |
| 43 | (void)inStream_readClassRef(getEnv(), in); |
| 44 | if (inStream_error(in)) { |
| 45 | return JNI_TRUE; |
| 46 | } |
| 47 | method = inStream_readMethodID(in); |
| 48 | if (inStream_error(in)) { |
| 49 | return JNI_TRUE; |
| 50 | } |
| 51 | |
| 52 | /* |
| 53 | * JVMTI behavior for the calls below is unspecified for native |
| 54 | * methods, so we must check explicitly. |
| 55 | */ |
| 56 | isNative = isMethodNative(method); |
| 57 | if (isNative) { |
| 58 | outStream_setError(out, JDWP_ERROR(NATIVE_METHOD)); |
| 59 | return JNI_TRUE; |
| 60 | } |
| 61 | |
| 62 | error = methodLocation(method, &firstCodeIndex, &lastCodeIndex); |
| 63 | if (error != JVMTI_ERROR_NONE) { |
| 64 | outStream_setError(out, map2jdwpError(error)); |
| 65 | return JNI_TRUE; |
| 66 | } |
| 67 | (void)outStream_writeLocation(out, firstCodeIndex); |
| 68 | (void)outStream_writeLocation(out, lastCodeIndex); |
| 69 | |
| 70 | error = JVMTI_FUNC_PTR(gdata->jvmti,GetLineNumberTable) |
| 71 | (gdata->jvmti, method, &count, &table); |
| 72 | if (error == JVMTI_ERROR_ABSENT_INFORMATION) { |
| 73 | /* |
| 74 | * Indicate no line info with an empty table. The code indices |
| 75 | * are still useful, so we don't want to return an error |
| 76 | */ |
| 77 | (void)outStream_writeInt(out, 0); |
| 78 | } else if (error == JVMTI_ERROR_NONE) { |
| 79 | jint i; |
| 80 | (void)outStream_writeInt(out, count); |
| 81 | for (i = 0; (i < count) && !outStream_error(out); i++) { |
| 82 | (void)outStream_writeLocation(out, table[i].start_location); |
| 83 | (void)outStream_writeInt(out, table[i].line_number); |
| 84 | } |
| 85 | jvmtiDeallocate(table); |
| 86 | } else { |
| 87 | outStream_setError(out, map2jdwpError(error)); |
| 88 | } |
| 89 | return JNI_TRUE; |
| 90 | } |
| 91 | |
| 92 | |
| 93 | static jboolean |
| 94 | doVariableTable(PacketInputStream *in, PacketOutputStream *out, |
| 95 | int outputGenerics) |
| 96 | { |
| 97 | jvmtiError error; |
| 98 | jint count; |
| 99 | jvmtiLocalVariableEntry *table; |
| 100 | jmethodID method; |
| 101 | jint argsSize; |
| 102 | jboolean isNative; |
| 103 | |
| 104 | /* JVMDI needed the class, but JVMTI does not so we ignore it */ |
| 105 | (void)inStream_readClassRef(getEnv(), in); |
| 106 | if (inStream_error(in)) { |
| 107 | return JNI_TRUE; |
| 108 | } |
| 109 | method = inStream_readMethodID(in); |
| 110 | if (inStream_error(in)) { |
| 111 | return JNI_TRUE; |
| 112 | } |
| 113 | |
| 114 | /* |
| 115 | * JVMTI behavior for the calls below is unspecified for native |
| 116 | * methods, so we must check explicitly. |
| 117 | */ |
| 118 | isNative = isMethodNative(method); |
| 119 | if (isNative) { |
| 120 | outStream_setError(out, JDWP_ERROR(NATIVE_METHOD)); |
| 121 | return JNI_TRUE; |
| 122 | } |
| 123 | |
| 124 | error = JVMTI_FUNC_PTR(gdata->jvmti,GetArgumentsSize) |
| 125 | (gdata->jvmti, method, &argsSize); |
| 126 | if (error != JVMTI_ERROR_NONE) { |
| 127 | outStream_setError(out, map2jdwpError(error)); |
| 128 | return JNI_TRUE; |
| 129 | } |
| 130 | |
| 131 | error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalVariableTable) |
| 132 | (gdata->jvmti, method, &count, &table); |
| 133 | if (error == JVMTI_ERROR_NONE) { |
| 134 | jint i; |
| 135 | (void)outStream_writeInt(out, argsSize); |
| 136 | (void)outStream_writeInt(out, count); |
| 137 | for (i = 0; (i < count) && !outStream_error(out); i++) { |
| 138 | jvmtiLocalVariableEntry *entry = &table[i]; |
| 139 | (void)outStream_writeLocation(out, entry->start_location); |
| 140 | (void)outStream_writeString(out, entry->name); |
| 141 | (void)outStream_writeString(out, entry->signature); |
| 142 | if (outputGenerics == 1) { |
| 143 | writeGenericSignature(out, entry->generic_signature); |
| 144 | } |
| 145 | (void)outStream_writeInt(out, entry->length); |
| 146 | (void)outStream_writeInt(out, entry->slot); |
| 147 | |
| 148 | jvmtiDeallocate(entry->name); |
| 149 | jvmtiDeallocate(entry->signature); |
| 150 | if (entry->generic_signature != NULL) { |
| 151 | jvmtiDeallocate(entry->generic_signature); |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | jvmtiDeallocate(table); |
| 156 | } else { |
| 157 | outStream_setError(out, map2jdwpError(error)); |
| 158 | } |
| 159 | return JNI_TRUE; |
| 160 | } |
| 161 | |
| 162 | |
| 163 | static jboolean |
| 164 | variableTable(PacketInputStream *in, PacketOutputStream *out) { |
| 165 | return doVariableTable(in, out, 0); |
| 166 | } |
| 167 | |
| 168 | static jboolean |
| 169 | variableTableWithGenerics(PacketInputStream *in, PacketOutputStream *out) { |
| 170 | return doVariableTable(in, out, 1); |
| 171 | } |
| 172 | |
| 173 | |
| 174 | static jboolean |
| 175 | bytecodes(PacketInputStream *in, PacketOutputStream *out) |
| 176 | { |
| 177 | jvmtiError error; |
| 178 | unsigned char * bcp; |
| 179 | jint bytecodeCount; |
| 180 | jmethodID method; |
| 181 | |
| 182 | /* JVMDI needed the class, but JVMTI does not so we ignore it */ |
| 183 | (void)inStream_readClassRef(getEnv(), in); |
| 184 | if (inStream_error(in)) { |
| 185 | return JNI_TRUE; |
| 186 | } |
| 187 | method = inStream_readMethodID(in); |
| 188 | if (inStream_error(in)) { |
| 189 | return JNI_TRUE; |
| 190 | } |
| 191 | |
| 192 | /* Initialize assuming no bytecodes and no error */ |
| 193 | error = JVMTI_ERROR_NONE; |
| 194 | bytecodeCount = 0; |
| 195 | bcp = NULL; |
| 196 | |
| 197 | /* Only non-native methods have bytecodes, don't even ask if native. */ |
| 198 | if ( !isMethodNative(method) ) { |
| 199 | error = JVMTI_FUNC_PTR(gdata->jvmti,GetBytecodes) |
| 200 | (gdata->jvmti, method, &bytecodeCount, &bcp); |
| 201 | } |
| 202 | if (error != JVMTI_ERROR_NONE) { |
| 203 | outStream_setError(out, map2jdwpError(error)); |
| 204 | } else { |
| 205 | (void)outStream_writeByteArray(out, bytecodeCount, (jbyte *)bcp); |
| 206 | jvmtiDeallocate(bcp); |
| 207 | } |
| 208 | |
| 209 | return JNI_TRUE; |
| 210 | } |
| 211 | |
| 212 | static jboolean |
| 213 | isObsolete(PacketInputStream *in, PacketOutputStream *out) |
| 214 | { |
| 215 | jboolean isObsolete; |
| 216 | jmethodID method; |
| 217 | |
| 218 | /* JVMDI needed the class, but JVMTI does not so we ignore it */ |
| 219 | (void)inStream_readClassRef(getEnv(), in); |
| 220 | if (inStream_error(in)) { |
| 221 | return JNI_TRUE; |
| 222 | } |
| 223 | method = inStream_readMethodID(in); |
| 224 | if (inStream_error(in)) { |
| 225 | return JNI_TRUE; |
| 226 | } |
| 227 | |
| 228 | isObsolete = isMethodObsolete(method); |
| 229 | (void)outStream_writeBoolean(out, isObsolete); |
| 230 | |
| 231 | return JNI_TRUE; |
| 232 | } |
| 233 | |
| 234 | void *Method_Cmds[] = { (void *)0x5 |
| 235 | ,(void *)lineTable |
| 236 | ,(void *)variableTable |
| 237 | ,(void *)bytecodes |
| 238 | ,(void *)isObsolete |
| 239 | ,(void *)variableTableWithGenerics |
| 240 | }; |