0
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1 /*
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2 * Copyright 2002-2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 #include <jni.h>
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26 #include "libproc.h"
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27
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28 #if defined(x86_64) && !defined(amd64)
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29 #define amd64 1
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30 #endif
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31
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32 #ifdef i386
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33 #include "sun_jvm_hotspot_debugger_x86_X86ThreadContext.h"
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34 #endif
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35
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36 #ifdef amd64
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37 #include "sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext.h"
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38 #endif
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39
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40 #if defined(sparc) || defined(sparcv9)
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41 #include "sun_jvm_hotspot_debugger_sparc_SPARCThreadContext.h"
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42 #endif
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43
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44 static jfieldID p_ps_prochandle_ID = 0;
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45 static jfieldID threadList_ID = 0;
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46 static jfieldID loadObjectList_ID = 0;
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47
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48 static jmethodID createClosestSymbol_ID = 0;
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49 static jmethodID createLoadObject_ID = 0;
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50 static jmethodID getThreadForThreadId_ID = 0;
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51 static jmethodID listAdd_ID = 0;
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52
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53 #define CHECK_EXCEPTION_(value) if ((*env)->ExceptionOccurred(env)) { return value; }
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54 #define CHECK_EXCEPTION if ((*env)->ExceptionOccurred(env)) { return;}
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55 #define THROW_NEW_DEBUGGER_EXCEPTION_(str, value) { throw_new_debugger_exception(env, str); return value; }
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56 #define THROW_NEW_DEBUGGER_EXCEPTION(str) { throw_new_debugger_exception(env, str); return;}
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57
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58 static void throw_new_debugger_exception(JNIEnv* env, const char* errMsg) {
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59 (*env)->ThrowNew(env, (*env)->FindClass(env, "sun/jvm/hotspot/debugger/DebuggerException"), errMsg);
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60 }
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61
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62 static struct ps_prochandle* get_proc_handle(JNIEnv* env, jobject this_obj) {
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63 jlong ptr = (*env)->GetLongField(env, this_obj, p_ps_prochandle_ID);
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64 return (struct ps_prochandle*)(intptr_t)ptr;
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65 }
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66
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67 /*
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68 * Class: sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal
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69 * Method: init0
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70 * Signature: ()V
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71 */
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72 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_init0
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73 (JNIEnv *env, jclass cls) {
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74 jclass listClass;
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75
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76 if (init_libproc(getenv("LIBSAPROC_DEBUG")) != true) {
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77 THROW_NEW_DEBUGGER_EXCEPTION("can't initialize libproc");
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78 }
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79
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80 // fields we use
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81 p_ps_prochandle_ID = (*env)->GetFieldID(env, cls, "p_ps_prochandle", "J");
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82 CHECK_EXCEPTION;
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83 threadList_ID = (*env)->GetFieldID(env, cls, "threadList", "Ljava/util/List;");
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84 CHECK_EXCEPTION;
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85 loadObjectList_ID = (*env)->GetFieldID(env, cls, "loadObjectList", "Ljava/util/List;");
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86 CHECK_EXCEPTION;
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87
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88 // methods we use
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89 createClosestSymbol_ID = (*env)->GetMethodID(env, cls, "createClosestSymbol",
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90 "(Ljava/lang/String;J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;");
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91 CHECK_EXCEPTION;
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92 createLoadObject_ID = (*env)->GetMethodID(env, cls, "createLoadObject",
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93 "(Ljava/lang/String;JJ)Lsun/jvm/hotspot/debugger/cdbg/LoadObject;");
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94 CHECK_EXCEPTION;
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95 getThreadForThreadId_ID = (*env)->GetMethodID(env, cls, "getThreadForThreadId",
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96 "(J)Lsun/jvm/hotspot/debugger/ThreadProxy;");
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97 CHECK_EXCEPTION;
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98 // java.util.List method we call
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99 listClass = (*env)->FindClass(env, "java/util/List");
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100 CHECK_EXCEPTION;
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101 listAdd_ID = (*env)->GetMethodID(env, listClass, "add", "(Ljava/lang/Object;)Z");
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102 CHECK_EXCEPTION;
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103 }
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104
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105 JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_getAddressSize
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106 (JNIEnv *env, jclass cls)
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107 {
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108 #ifdef _LP64
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109 return 8;
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110 #else
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111 return 4;
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112 #endif
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113
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114 }
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115
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116
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117 static void fillThreadsAndLoadObjects(JNIEnv* env, jobject this_obj, struct ps_prochandle* ph) {
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118 int n = 0, i = 0;
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119
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120 // add threads
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121 n = get_num_threads(ph);
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122 for (i = 0; i < n; i++) {
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123 jobject thread;
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124 jobject threadList;
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125 lwpid_t lwpid;
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126
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127 lwpid = get_lwp_id(ph, i);
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128 thread = (*env)->CallObjectMethod(env, this_obj, getThreadForThreadId_ID,
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129 (jlong)lwpid);
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130 CHECK_EXCEPTION;
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131 threadList = (*env)->GetObjectField(env, this_obj, threadList_ID);
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132 CHECK_EXCEPTION;
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133 (*env)->CallBooleanMethod(env, threadList, listAdd_ID, thread);
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134 CHECK_EXCEPTION;
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135 }
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136
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137 // add load objects
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138 n = get_num_libs(ph);
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139 for (i = 0; i < n; i++) {
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140 uintptr_t base;
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141 const char* name;
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142 jobject loadObject;
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143 jobject loadObjectList;
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144
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145 base = get_lib_base(ph, i);
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146 name = get_lib_name(ph, i);
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147 loadObject = (*env)->CallObjectMethod(env, this_obj, createLoadObject_ID,
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148 (*env)->NewStringUTF(env, name), (jlong)0, (jlong)base);
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149 CHECK_EXCEPTION;
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150 loadObjectList = (*env)->GetObjectField(env, this_obj, loadObjectList_ID);
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151 CHECK_EXCEPTION;
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152 (*env)->CallBooleanMethod(env, loadObjectList, listAdd_ID, loadObject);
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153 CHECK_EXCEPTION;
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154 }
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155 }
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156
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157 /*
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158 * Class: sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal
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159 * Method: attach0
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160 * Signature: (I)V
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161 */
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162 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_attach0__I
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163 (JNIEnv *env, jobject this_obj, jint jpid) {
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164
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165 struct ps_prochandle* ph;
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166 if ( (ph = Pgrab(jpid)) == NULL) {
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167 THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the process");
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168 }
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169 (*env)->SetLongField(env, this_obj, p_ps_prochandle_ID, (jlong)(intptr_t)ph);
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170 fillThreadsAndLoadObjects(env, this_obj, ph);
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171 }
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172
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173 /*
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174 * Class: sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal
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175 * Method: attach0
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176 * Signature: (Ljava/lang/String;Ljava/lang/String;)V
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177 */
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178 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2
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179 (JNIEnv *env, jobject this_obj, jstring execName, jstring coreName) {
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180 const char *execName_cstr;
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181 const char *coreName_cstr;
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182 jboolean isCopy;
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183 struct ps_prochandle* ph;
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184
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185 execName_cstr = (*env)->GetStringUTFChars(env, execName, &isCopy);
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186 CHECK_EXCEPTION;
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187 coreName_cstr = (*env)->GetStringUTFChars(env, coreName, &isCopy);
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188 CHECK_EXCEPTION;
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189
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190 if ( (ph = Pgrab_core(execName_cstr, coreName_cstr)) == NULL) {
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191 (*env)->ReleaseStringUTFChars(env, execName, execName_cstr);
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192 (*env)->ReleaseStringUTFChars(env, coreName, coreName_cstr);
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193 THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the core file");
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194 }
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195 (*env)->SetLongField(env, this_obj, p_ps_prochandle_ID, (jlong)(intptr_t)ph);
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196 (*env)->ReleaseStringUTFChars(env, execName, execName_cstr);
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197 (*env)->ReleaseStringUTFChars(env, coreName, coreName_cstr);
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198 fillThreadsAndLoadObjects(env, this_obj, ph);
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199 }
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200
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201 /*
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202 * Class: sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal
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203 * Method: detach0
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204 * Signature: ()V
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205 */
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206 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_detach0
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207 (JNIEnv *env, jobject this_obj) {
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208 struct ps_prochandle* ph = get_proc_handle(env, this_obj);
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209 if (ph != NULL) {
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210 Prelease(ph);
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211 }
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212 }
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213
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214 /*
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215 * Class: sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal
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216 * Method: lookupByName0
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217 * Signature: (Ljava/lang/String;Ljava/lang/String;)J
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218 */
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219 JNIEXPORT jlong JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_lookupByName0
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220 (JNIEnv *env, jobject this_obj, jstring objectName, jstring symbolName) {
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221 const char *objectName_cstr, *symbolName_cstr;
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222 jlong addr;
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223 jboolean isCopy;
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224 struct ps_prochandle* ph = get_proc_handle(env, this_obj);
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225
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226 objectName_cstr = NULL;
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227 if (objectName != NULL) {
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228 objectName_cstr = (*env)->GetStringUTFChars(env, objectName, &isCopy);
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229 CHECK_EXCEPTION_(0);
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230 }
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231 symbolName_cstr = (*env)->GetStringUTFChars(env, symbolName, &isCopy);
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232 CHECK_EXCEPTION_(0);
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233
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234 addr = (jlong) lookup_symbol(ph, objectName_cstr, symbolName_cstr);
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235
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236 if (objectName_cstr != NULL) {
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237 (*env)->ReleaseStringUTFChars(env, objectName, objectName_cstr);
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238 }
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239 (*env)->ReleaseStringUTFChars(env, symbolName, symbolName_cstr);
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240 return addr;
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241 }
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242
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243 /*
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244 * Class: sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal
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245 * Method: lookupByAddress0
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246 * Signature: (J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;
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247 */
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248 JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_lookupByAddress0
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249 (JNIEnv *env, jobject this_obj, jlong addr) {
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250 uintptr_t offset;
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251 const char* sym = NULL;
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252
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253 struct ps_prochandle* ph = get_proc_handle(env, this_obj);
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254 sym = symbol_for_pc(ph, (uintptr_t) addr, &offset);
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255 if (sym == NULL) return 0;
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256 return (*env)->CallObjectMethod(env, this_obj, createClosestSymbol_ID,
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257 (*env)->NewStringUTF(env, sym), (jlong)offset);
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258 }
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259
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260 /*
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261 * Class: sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal
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262 * Method: readBytesFromProcess0
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263 * Signature: (JJ)Lsun/jvm/hotspot/debugger/ReadResult;
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264 */
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265 JNIEXPORT jbyteArray JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_readBytesFromProcess0
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266 (JNIEnv *env, jobject this_obj, jlong addr, jlong numBytes) {
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267
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268 jboolean isCopy;
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269 jbyteArray array;
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270 jbyte *bufPtr;
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271 ps_err_e err;
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272
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273 array = (*env)->NewByteArray(env, numBytes);
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274 CHECK_EXCEPTION_(0);
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275 bufPtr = (*env)->GetByteArrayElements(env, array, &isCopy);
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276 CHECK_EXCEPTION_(0);
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277
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278 err = ps_pdread(get_proc_handle(env, this_obj), (psaddr_t) (uintptr_t)addr, bufPtr, numBytes);
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279 (*env)->ReleaseByteArrayElements(env, array, bufPtr, 0);
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280 return (err == PS_OK)? array : 0;
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281 }
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282
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283 JNIEXPORT jlongArray JNICALL Java_sun_jvm_hotspot_debugger_linux_LinuxDebuggerLocal_getThreadIntegerRegisterSet0
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284 (JNIEnv *env, jobject this_obj, jint lwp_id) {
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285
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286 struct user_regs_struct gregs;
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287 jboolean isCopy;
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288 jlongArray array;
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289 jlong *regs;
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290 int i;
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291
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292 struct ps_prochandle* ph = get_proc_handle(env, this_obj);
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293 if (get_lwp_regs(ph, lwp_id, &gregs) != true) {
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294 THROW_NEW_DEBUGGER_EXCEPTION_("get_thread_regs failed for a lwp", 0);
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295 }
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296
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297 #undef NPRGREG
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298 #ifdef i386
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299 #define NPRGREG sun_jvm_hotspot_debugger_x86_X86ThreadContext_NPRGREG
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300 #endif
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301 #ifdef ia64
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302 #define NPRGREG IA64_REG_COUNT
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303 #endif
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304 #ifdef amd64
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305 #define NPRGREG sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_NPRGREG
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306 #endif
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307 #if defined(sparc) || defined(sparcv9)
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308 #define NPRGREG sun_jvm_hotspot_debugger_sparc_SPARCThreadContext_NPRGREG
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309 #endif
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310
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311 array = (*env)->NewLongArray(env, NPRGREG);
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312 CHECK_EXCEPTION_(0);
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313 regs = (*env)->GetLongArrayElements(env, array, &isCopy);
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314
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315 #undef REG_INDEX
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316
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317 #ifdef i386
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318 #define REG_INDEX(reg) sun_jvm_hotspot_debugger_x86_X86ThreadContext_##reg
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319
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320 regs[REG_INDEX(GS)] = (uintptr_t) gregs.xgs;
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321 regs[REG_INDEX(FS)] = (uintptr_t) gregs.xfs;
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322 regs[REG_INDEX(ES)] = (uintptr_t) gregs.xes;
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323 regs[REG_INDEX(DS)] = (uintptr_t) gregs.xds;
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324 regs[REG_INDEX(EDI)] = (uintptr_t) gregs.edi;
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325 regs[REG_INDEX(ESI)] = (uintptr_t) gregs.esi;
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326 regs[REG_INDEX(FP)] = (uintptr_t) gregs.ebp;
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327 regs[REG_INDEX(SP)] = (uintptr_t) gregs.esp;
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328 regs[REG_INDEX(EBX)] = (uintptr_t) gregs.ebx;
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329 regs[REG_INDEX(EDX)] = (uintptr_t) gregs.edx;
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330 regs[REG_INDEX(ECX)] = (uintptr_t) gregs.ecx;
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331 regs[REG_INDEX(EAX)] = (uintptr_t) gregs.eax;
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332 regs[REG_INDEX(PC)] = (uintptr_t) gregs.eip;
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333 regs[REG_INDEX(CS)] = (uintptr_t) gregs.xcs;
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334 regs[REG_INDEX(SS)] = (uintptr_t) gregs.xss;
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335
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336 #endif /* i386 */
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337
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338 #if ia64
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339 regs = (*env)->GetLongArrayElements(env, array, &isCopy);
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340 for (i = 0; i < NPRGREG; i++ ) {
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341 regs[i] = 0xDEADDEAD;
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342 }
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343 #endif /* ia64 */
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344
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345 #ifdef amd64
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346 #define REG_INDEX(reg) sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_##reg
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347
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348 regs[REG_INDEX(R15)] = gregs.r15;
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349 regs[REG_INDEX(R14)] = gregs.r14;
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350 regs[REG_INDEX(R13)] = gregs.r13;
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351 regs[REG_INDEX(R12)] = gregs.r12;
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352 regs[REG_INDEX(RBP)] = gregs.rbp;
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353 regs[REG_INDEX(RBX)] = gregs.rbx;
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354 regs[REG_INDEX(R11)] = gregs.r11;
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355 regs[REG_INDEX(R10)] = gregs.r10;
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356 regs[REG_INDEX(R9)] = gregs.r9;
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357 regs[REG_INDEX(R8)] = gregs.r8;
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358 regs[REG_INDEX(RAX)] = gregs.rax;
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359 regs[REG_INDEX(RCX)] = gregs.rcx;
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360 regs[REG_INDEX(RDX)] = gregs.rdx;
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361 regs[REG_INDEX(RSI)] = gregs.rsi;
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362 regs[REG_INDEX(RDI)] = gregs.rdi;
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363 regs[REG_INDEX(RIP)] = gregs.rip;
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364 regs[REG_INDEX(CS)] = gregs.cs;
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365 regs[REG_INDEX(RSP)] = gregs.rsp;
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366 regs[REG_INDEX(SS)] = gregs.ss;
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367 regs[REG_INDEX(FSBASE)] = gregs.fs_base;
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368 regs[REG_INDEX(GSBASE)] = gregs.gs_base;
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369 regs[REG_INDEX(DS)] = gregs.ds;
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370 regs[REG_INDEX(ES)] = gregs.es;
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371 regs[REG_INDEX(FS)] = gregs.fs;
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372 regs[REG_INDEX(GS)] = gregs.gs;
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373
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374 #endif /* amd64 */
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375
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376 #if defined(sparc) || defined(sparcv9)
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377
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378 #define REG_INDEX(reg) sun_jvm_hotspot_debugger_sparc_SPARCThreadContext_##reg
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379
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380 #ifdef _LP64
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381 regs[REG_INDEX(R_PSR)] = gregs.tstate;
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382 regs[REG_INDEX(R_PC)] = gregs.tpc;
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383 regs[REG_INDEX(R_nPC)] = gregs.tnpc;
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384 regs[REG_INDEX(R_Y)] = gregs.y;
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385 #else
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386 regs[REG_INDEX(R_PSR)] = gregs.psr;
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387 regs[REG_INDEX(R_PC)] = gregs.pc;
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388 regs[REG_INDEX(R_nPC)] = gregs.npc;
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389 regs[REG_INDEX(R_Y)] = gregs.y;
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390 #endif
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391 regs[REG_INDEX(R_G0)] = 0 ;
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392 regs[REG_INDEX(R_G1)] = gregs.u_regs[0];
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393 regs[REG_INDEX(R_G2)] = gregs.u_regs[1];
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394 regs[REG_INDEX(R_G3)] = gregs.u_regs[2];
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395 regs[REG_INDEX(R_G4)] = gregs.u_regs[3];
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396 regs[REG_INDEX(R_G5)] = gregs.u_regs[4];
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397 regs[REG_INDEX(R_G6)] = gregs.u_regs[5];
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398 regs[REG_INDEX(R_G7)] = gregs.u_regs[6];
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399 regs[REG_INDEX(R_O0)] = gregs.u_regs[7];
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400 regs[REG_INDEX(R_O1)] = gregs.u_regs[8];
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401 regs[REG_INDEX(R_O2)] = gregs.u_regs[ 9];
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402 regs[REG_INDEX(R_O3)] = gregs.u_regs[10];
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403 regs[REG_INDEX(R_O4)] = gregs.u_regs[11];
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404 regs[REG_INDEX(R_O5)] = gregs.u_regs[12];
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405 regs[REG_INDEX(R_O6)] = gregs.u_regs[13];
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406 regs[REG_INDEX(R_O7)] = gregs.u_regs[14];
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407 #endif /* sparc */
|
|
408
|
|
409
|
|
410 (*env)->ReleaseLongArrayElements(env, array, regs, JNI_COMMIT);
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|
411 return array;
|
|
412 }
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