1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/agent/src/os/bsd/BsdDebuggerLocal.c Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,413 @@
1.4 +/*
1.5 + * Copyright (c) 2002, 2007, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#include <stdlib.h>
1.29 +#include <jni.h>
1.30 +#include "libproc.h"
1.31 +
1.32 +#if defined(x86_64) && !defined(amd64)
1.33 +#define amd64 1
1.34 +#endif
1.35 +
1.36 +#ifdef i386
1.37 +#include "sun_jvm_hotspot_debugger_x86_X86ThreadContext.h"
1.38 +#endif
1.39 +
1.40 +#ifdef amd64
1.41 +#include "sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext.h"
1.42 +#endif
1.43 +
1.44 +#if defined(sparc) || defined(sparcv9)
1.45 +#include "sun_jvm_hotspot_debugger_sparc_SPARCThreadContext.h"
1.46 +#endif
1.47 +
1.48 +static jfieldID p_ps_prochandle_ID = 0;
1.49 +static jfieldID threadList_ID = 0;
1.50 +static jfieldID loadObjectList_ID = 0;
1.51 +
1.52 +static jmethodID createClosestSymbol_ID = 0;
1.53 +static jmethodID createLoadObject_ID = 0;
1.54 +static jmethodID getThreadForThreadId_ID = 0;
1.55 +static jmethodID listAdd_ID = 0;
1.56 +
1.57 +#define CHECK_EXCEPTION_(value) if ((*env)->ExceptionOccurred(env)) { return value; }
1.58 +#define CHECK_EXCEPTION if ((*env)->ExceptionOccurred(env)) { return;}
1.59 +#define THROW_NEW_DEBUGGER_EXCEPTION_(str, value) { throw_new_debugger_exception(env, str); return value; }
1.60 +#define THROW_NEW_DEBUGGER_EXCEPTION(str) { throw_new_debugger_exception(env, str); return;}
1.61 +
1.62 +static void throw_new_debugger_exception(JNIEnv* env, const char* errMsg) {
1.63 + (*env)->ThrowNew(env, (*env)->FindClass(env, "sun/jvm/hotspot/debugger/DebuggerException"), errMsg);
1.64 +}
1.65 +
1.66 +static struct ps_prochandle* get_proc_handle(JNIEnv* env, jobject this_obj) {
1.67 + jlong ptr = (*env)->GetLongField(env, this_obj, p_ps_prochandle_ID);
1.68 + return (struct ps_prochandle*)(intptr_t)ptr;
1.69 +}
1.70 +
1.71 +/*
1.72 + * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal
1.73 + * Method: init0
1.74 + * Signature: ()V
1.75 + */
1.76 +JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_init0
1.77 + (JNIEnv *env, jclass cls) {
1.78 + jclass listClass;
1.79 +
1.80 + if (init_libproc(getenv("LIBSAPROC_DEBUG") != NULL) != true) {
1.81 + THROW_NEW_DEBUGGER_EXCEPTION("can't initialize libproc");
1.82 + }
1.83 +
1.84 + // fields we use
1.85 + p_ps_prochandle_ID = (*env)->GetFieldID(env, cls, "p_ps_prochandle", "J");
1.86 + CHECK_EXCEPTION;
1.87 + threadList_ID = (*env)->GetFieldID(env, cls, "threadList", "Ljava/util/List;");
1.88 + CHECK_EXCEPTION;
1.89 + loadObjectList_ID = (*env)->GetFieldID(env, cls, "loadObjectList", "Ljava/util/List;");
1.90 + CHECK_EXCEPTION;
1.91 +
1.92 + // methods we use
1.93 + createClosestSymbol_ID = (*env)->GetMethodID(env, cls, "createClosestSymbol",
1.94 + "(Ljava/lang/String;J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;");
1.95 + CHECK_EXCEPTION;
1.96 + createLoadObject_ID = (*env)->GetMethodID(env, cls, "createLoadObject",
1.97 + "(Ljava/lang/String;JJ)Lsun/jvm/hotspot/debugger/cdbg/LoadObject;");
1.98 + CHECK_EXCEPTION;
1.99 + getThreadForThreadId_ID = (*env)->GetMethodID(env, cls, "getThreadForThreadId",
1.100 + "(J)Lsun/jvm/hotspot/debugger/ThreadProxy;");
1.101 + CHECK_EXCEPTION;
1.102 + // java.util.List method we call
1.103 + listClass = (*env)->FindClass(env, "java/util/List");
1.104 + CHECK_EXCEPTION;
1.105 + listAdd_ID = (*env)->GetMethodID(env, listClass, "add", "(Ljava/lang/Object;)Z");
1.106 + CHECK_EXCEPTION;
1.107 +}
1.108 +
1.109 +JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_getAddressSize
1.110 + (JNIEnv *env, jclass cls)
1.111 +{
1.112 +#ifdef _LP64
1.113 + return 8;
1.114 +#else
1.115 + return 4;
1.116 +#endif
1.117 +
1.118 +}
1.119 +
1.120 +
1.121 +static void fillThreadsAndLoadObjects(JNIEnv* env, jobject this_obj, struct ps_prochandle* ph) {
1.122 + int n = 0, i = 0;
1.123 +
1.124 + // add threads
1.125 + n = get_num_threads(ph);
1.126 + for (i = 0; i < n; i++) {
1.127 + jobject thread;
1.128 + jobject threadList;
1.129 + lwpid_t lwpid;
1.130 +
1.131 + lwpid = get_lwp_id(ph, i);
1.132 + thread = (*env)->CallObjectMethod(env, this_obj, getThreadForThreadId_ID,
1.133 + (jlong)lwpid);
1.134 + CHECK_EXCEPTION;
1.135 + threadList = (*env)->GetObjectField(env, this_obj, threadList_ID);
1.136 + CHECK_EXCEPTION;
1.137 + (*env)->CallBooleanMethod(env, threadList, listAdd_ID, thread);
1.138 + CHECK_EXCEPTION;
1.139 + }
1.140 +
1.141 + // add load objects
1.142 + n = get_num_libs(ph);
1.143 + for (i = 0; i < n; i++) {
1.144 + uintptr_t base;
1.145 + const char* name;
1.146 + jobject loadObject;
1.147 + jobject loadObjectList;
1.148 +
1.149 + base = get_lib_base(ph, i);
1.150 + name = get_lib_name(ph, i);
1.151 + loadObject = (*env)->CallObjectMethod(env, this_obj, createLoadObject_ID,
1.152 + (*env)->NewStringUTF(env, name), (jlong)0, (jlong)base);
1.153 + CHECK_EXCEPTION;
1.154 + loadObjectList = (*env)->GetObjectField(env, this_obj, loadObjectList_ID);
1.155 + CHECK_EXCEPTION;
1.156 + (*env)->CallBooleanMethod(env, loadObjectList, listAdd_ID, loadObject);
1.157 + CHECK_EXCEPTION;
1.158 + }
1.159 +}
1.160 +
1.161 +/*
1.162 + * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal
1.163 + * Method: attach0
1.164 + * Signature: (I)V
1.165 + */
1.166 +JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_attach0__I
1.167 + (JNIEnv *env, jobject this_obj, jint jpid) {
1.168 +
1.169 + struct ps_prochandle* ph;
1.170 + if ( (ph = Pgrab(jpid)) == NULL) {
1.171 + THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the process");
1.172 + }
1.173 + (*env)->SetLongField(env, this_obj, p_ps_prochandle_ID, (jlong)(intptr_t)ph);
1.174 + fillThreadsAndLoadObjects(env, this_obj, ph);
1.175 +}
1.176 +
1.177 +/*
1.178 + * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal
1.179 + * Method: attach0
1.180 + * Signature: (Ljava/lang/String;Ljava/lang/String;)V
1.181 + */
1.182 +JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2
1.183 + (JNIEnv *env, jobject this_obj, jstring execName, jstring coreName) {
1.184 + const char *execName_cstr;
1.185 + const char *coreName_cstr;
1.186 + jboolean isCopy;
1.187 + struct ps_prochandle* ph;
1.188 +
1.189 + execName_cstr = (*env)->GetStringUTFChars(env, execName, &isCopy);
1.190 + CHECK_EXCEPTION;
1.191 + coreName_cstr = (*env)->GetStringUTFChars(env, coreName, &isCopy);
1.192 + CHECK_EXCEPTION;
1.193 +
1.194 + if ( (ph = Pgrab_core(execName_cstr, coreName_cstr)) == NULL) {
1.195 + (*env)->ReleaseStringUTFChars(env, execName, execName_cstr);
1.196 + (*env)->ReleaseStringUTFChars(env, coreName, coreName_cstr);
1.197 + THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the core file");
1.198 + }
1.199 + (*env)->SetLongField(env, this_obj, p_ps_prochandle_ID, (jlong)(intptr_t)ph);
1.200 + (*env)->ReleaseStringUTFChars(env, execName, execName_cstr);
1.201 + (*env)->ReleaseStringUTFChars(env, coreName, coreName_cstr);
1.202 + fillThreadsAndLoadObjects(env, this_obj, ph);
1.203 +}
1.204 +
1.205 +/*
1.206 + * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal
1.207 + * Method: detach0
1.208 + * Signature: ()V
1.209 + */
1.210 +JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_detach0
1.211 + (JNIEnv *env, jobject this_obj) {
1.212 + struct ps_prochandle* ph = get_proc_handle(env, this_obj);
1.213 + if (ph != NULL) {
1.214 + Prelease(ph);
1.215 + }
1.216 +}
1.217 +
1.218 +/*
1.219 + * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal
1.220 + * Method: lookupByName0
1.221 + * Signature: (Ljava/lang/String;Ljava/lang/String;)J
1.222 + */
1.223 +JNIEXPORT jlong JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_lookupByName0
1.224 + (JNIEnv *env, jobject this_obj, jstring objectName, jstring symbolName) {
1.225 + const char *objectName_cstr, *symbolName_cstr;
1.226 + jlong addr;
1.227 + jboolean isCopy;
1.228 + struct ps_prochandle* ph = get_proc_handle(env, this_obj);
1.229 +
1.230 + objectName_cstr = NULL;
1.231 + if (objectName != NULL) {
1.232 + objectName_cstr = (*env)->GetStringUTFChars(env, objectName, &isCopy);
1.233 + CHECK_EXCEPTION_(0);
1.234 + }
1.235 + symbolName_cstr = (*env)->GetStringUTFChars(env, symbolName, &isCopy);
1.236 + CHECK_EXCEPTION_(0);
1.237 +
1.238 + addr = (jlong) lookup_symbol(ph, objectName_cstr, symbolName_cstr);
1.239 +
1.240 + if (objectName_cstr != NULL) {
1.241 + (*env)->ReleaseStringUTFChars(env, objectName, objectName_cstr);
1.242 + }
1.243 + (*env)->ReleaseStringUTFChars(env, symbolName, symbolName_cstr);
1.244 + return addr;
1.245 +}
1.246 +
1.247 +/*
1.248 + * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal
1.249 + * Method: lookupByAddress0
1.250 + * Signature: (J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;
1.251 + */
1.252 +JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_lookupByAddress0
1.253 + (JNIEnv *env, jobject this_obj, jlong addr) {
1.254 + uintptr_t offset;
1.255 + const char* sym = NULL;
1.256 +
1.257 + struct ps_prochandle* ph = get_proc_handle(env, this_obj);
1.258 + sym = symbol_for_pc(ph, (uintptr_t) addr, &offset);
1.259 + if (sym == NULL) return 0;
1.260 + return (*env)->CallObjectMethod(env, this_obj, createClosestSymbol_ID,
1.261 + (*env)->NewStringUTF(env, sym), (jlong)offset);
1.262 +}
1.263 +
1.264 +/*
1.265 + * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal
1.266 + * Method: readBytesFromProcess0
1.267 + * Signature: (JJ)Lsun/jvm/hotspot/debugger/ReadResult;
1.268 + */
1.269 +JNIEXPORT jbyteArray JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_readBytesFromProcess0
1.270 + (JNIEnv *env, jobject this_obj, jlong addr, jlong numBytes) {
1.271 +
1.272 + jboolean isCopy;
1.273 + jbyteArray array;
1.274 + jbyte *bufPtr;
1.275 + ps_err_e err;
1.276 +
1.277 + array = (*env)->NewByteArray(env, numBytes);
1.278 + CHECK_EXCEPTION_(0);
1.279 + bufPtr = (*env)->GetByteArrayElements(env, array, &isCopy);
1.280 + CHECK_EXCEPTION_(0);
1.281 +
1.282 + err = ps_pread(get_proc_handle(env, this_obj), (psaddr_t) (uintptr_t)addr, bufPtr, numBytes);
1.283 + (*env)->ReleaseByteArrayElements(env, array, bufPtr, 0);
1.284 + return (err == PS_OK)? array : 0;
1.285 +}
1.286 +
1.287 +JNIEXPORT jlongArray JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_getThreadIntegerRegisterSet0
1.288 + (JNIEnv *env, jobject this_obj, jint lwp_id) {
1.289 +
1.290 + struct reg gregs;
1.291 + jboolean isCopy;
1.292 + jlongArray array;
1.293 + jlong *regs;
1.294 +
1.295 + struct ps_prochandle* ph = get_proc_handle(env, this_obj);
1.296 + if (get_lwp_regs(ph, lwp_id, &gregs) != true) {
1.297 + THROW_NEW_DEBUGGER_EXCEPTION_("get_thread_regs failed for a lwp", 0);
1.298 + }
1.299 +
1.300 +#undef NPRGREG
1.301 +#ifdef i386
1.302 +#define NPRGREG sun_jvm_hotspot_debugger_x86_X86ThreadContext_NPRGREG
1.303 +#endif
1.304 +#ifdef ia64
1.305 +#define NPRGREG IA64_REG_COUNT
1.306 +#endif
1.307 +#ifdef amd64
1.308 +#define NPRGREG sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_NPRGREG
1.309 +#endif
1.310 +#if defined(sparc) || defined(sparcv9)
1.311 +#define NPRGREG sun_jvm_hotspot_debugger_sparc_SPARCThreadContext_NPRGREG
1.312 +#endif
1.313 +
1.314 + array = (*env)->NewLongArray(env, NPRGREG);
1.315 + CHECK_EXCEPTION_(0);
1.316 + regs = (*env)->GetLongArrayElements(env, array, &isCopy);
1.317 +
1.318 +#undef REG_INDEX
1.319 +
1.320 +#ifdef i386
1.321 +#define REG_INDEX(reg) sun_jvm_hotspot_debugger_x86_X86ThreadContext_##reg
1.322 +
1.323 + regs[REG_INDEX(GS)] = (uintptr_t) gregs.r_gs;
1.324 + regs[REG_INDEX(FS)] = (uintptr_t) gregs.r_fs;
1.325 + regs[REG_INDEX(ES)] = (uintptr_t) gregs.r_es;
1.326 + regs[REG_INDEX(DS)] = (uintptr_t) gregs.r_ds;
1.327 + regs[REG_INDEX(EDI)] = (uintptr_t) gregs.r_edi;
1.328 + regs[REG_INDEX(ESI)] = (uintptr_t) gregs.r_esi;
1.329 + regs[REG_INDEX(FP)] = (uintptr_t) gregs.r_ebp;
1.330 + regs[REG_INDEX(SP)] = (uintptr_t) gregs.r_isp;
1.331 + regs[REG_INDEX(EBX)] = (uintptr_t) gregs.r_ebx;
1.332 + regs[REG_INDEX(EDX)] = (uintptr_t) gregs.r_edx;
1.333 + regs[REG_INDEX(ECX)] = (uintptr_t) gregs.r_ecx;
1.334 + regs[REG_INDEX(EAX)] = (uintptr_t) gregs.r_eax;
1.335 + regs[REG_INDEX(PC)] = (uintptr_t) gregs.r_eip;
1.336 + regs[REG_INDEX(CS)] = (uintptr_t) gregs.r_cs;
1.337 + regs[REG_INDEX(SS)] = (uintptr_t) gregs.r_ss;
1.338 +
1.339 +#endif /* i386 */
1.340 +
1.341 +#if ia64
1.342 + regs = (*env)->GetLongArrayElements(env, array, &isCopy);
1.343 + int i;
1.344 + for (i = 0; i < NPRGREG; i++ ) {
1.345 + regs[i] = 0xDEADDEAD;
1.346 + }
1.347 +#endif /* ia64 */
1.348 +
1.349 +#ifdef amd64
1.350 +#define REG_INDEX(reg) sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_##reg
1.351 +
1.352 + regs[REG_INDEX(R15)] = gregs.r_r15;
1.353 + regs[REG_INDEX(R14)] = gregs.r_r14;
1.354 + regs[REG_INDEX(R13)] = gregs.r_r13;
1.355 + regs[REG_INDEX(R12)] = gregs.r_r12;
1.356 + regs[REG_INDEX(RBP)] = gregs.r_rbp;
1.357 + regs[REG_INDEX(RBX)] = gregs.r_rbx;
1.358 + regs[REG_INDEX(R11)] = gregs.r_r11;
1.359 + regs[REG_INDEX(R10)] = gregs.r_r10;
1.360 + regs[REG_INDEX(R9)] = gregs.r_r9;
1.361 + regs[REG_INDEX(R8)] = gregs.r_r8;
1.362 + regs[REG_INDEX(RAX)] = gregs.r_rax;
1.363 + regs[REG_INDEX(RCX)] = gregs.r_rcx;
1.364 + regs[REG_INDEX(RDX)] = gregs.r_rdx;
1.365 + regs[REG_INDEX(RSI)] = gregs.r_rsi;
1.366 + regs[REG_INDEX(RDI)] = gregs.r_rdi;
1.367 + regs[REG_INDEX(RIP)] = gregs.r_rip;
1.368 + regs[REG_INDEX(CS)] = gregs.r_cs;
1.369 + regs[REG_INDEX(RSP)] = gregs.r_rsp;
1.370 + regs[REG_INDEX(SS)] = gregs.r_ss;
1.371 +// regs[REG_INDEX(FSBASE)] = gregs.fs_base;
1.372 +// regs[REG_INDEX(GSBASE)] = gregs.gs_base;
1.373 +// regs[REG_INDEX(DS)] = gregs.ds;
1.374 +// regs[REG_INDEX(ES)] = gregs.es;
1.375 +// regs[REG_INDEX(FS)] = gregs.fs;
1.376 +// regs[REG_INDEX(GS)] = gregs.gs;
1.377 +
1.378 +#endif /* amd64 */
1.379 +
1.380 +#if defined(sparc) || defined(sparcv9)
1.381 +
1.382 +#define REG_INDEX(reg) sun_jvm_hotspot_debugger_sparc_SPARCThreadContext_##reg
1.383 +
1.384 +#ifdef _LP64
1.385 + regs[REG_INDEX(R_PSR)] = gregs.tstate;
1.386 + regs[REG_INDEX(R_PC)] = gregs.tpc;
1.387 + regs[REG_INDEX(R_nPC)] = gregs.tnpc;
1.388 + regs[REG_INDEX(R_Y)] = gregs.y;
1.389 +#else
1.390 + regs[REG_INDEX(R_PSR)] = gregs.psr;
1.391 + regs[REG_INDEX(R_PC)] = gregs.pc;
1.392 + regs[REG_INDEX(R_nPC)] = gregs.npc;
1.393 + regs[REG_INDEX(R_Y)] = gregs.y;
1.394 +#endif
1.395 + regs[REG_INDEX(R_G0)] = 0 ;
1.396 + regs[REG_INDEX(R_G1)] = gregs.u_regs[0];
1.397 + regs[REG_INDEX(R_G2)] = gregs.u_regs[1];
1.398 + regs[REG_INDEX(R_G3)] = gregs.u_regs[2];
1.399 + regs[REG_INDEX(R_G4)] = gregs.u_regs[3];
1.400 + regs[REG_INDEX(R_G5)] = gregs.u_regs[4];
1.401 + regs[REG_INDEX(R_G6)] = gregs.u_regs[5];
1.402 + regs[REG_INDEX(R_G7)] = gregs.u_regs[6];
1.403 + regs[REG_INDEX(R_O0)] = gregs.u_regs[7];
1.404 + regs[REG_INDEX(R_O1)] = gregs.u_regs[8];
1.405 + regs[REG_INDEX(R_O2)] = gregs.u_regs[ 9];
1.406 + regs[REG_INDEX(R_O3)] = gregs.u_regs[10];
1.407 + regs[REG_INDEX(R_O4)] = gregs.u_regs[11];
1.408 + regs[REG_INDEX(R_O5)] = gregs.u_regs[12];
1.409 + regs[REG_INDEX(R_O6)] = gregs.u_regs[13];
1.410 + regs[REG_INDEX(R_O7)] = gregs.u_regs[14];
1.411 +#endif /* sparc */
1.412 +
1.413 +
1.414 + (*env)->ReleaseLongArrayElements(env, array, regs, JNI_COMMIT);
1.415 + return array;
1.416 +}
