Mercurial > hg > truffle
annotate agent/src/os/bsd/MacosxDebuggerLocal.m @ 13450:5f07ec8bb982 jdk8-b121
Added tag hs25-b63 for changeset 41f4cad94c58
| author | amurillo |
|---|---|
| date | Fri, 13 Dec 2013 09:40:58 -0800 |
| parents | e4614b063fe1 |
| children | f2294a37e723 |
| rev | line source |
|---|---|
| 4006 | 1 /* |
| 8750 | 2 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved. |
| 4006 | 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. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #include <objc/objc-runtime.h> | |
| 26 #import <Foundation/Foundation.h> | |
| 27 #import <JavaNativeFoundation/JavaNativeFoundation.h> | |
| 28 | |
| 29 #include <JavaVM/jni.h> | |
| 30 | |
| 31 #import <mach/mach.h> | |
| 32 #import <mach/mach_types.h> | |
| 33 #import <sys/sysctl.h> | |
| 6782 | 34 #import <stdio.h> |
| 35 #import <stdarg.h> | |
| 4006 | 36 #import <stdlib.h> |
| 6782 | 37 #import <strings.h> |
| 38 #import <dlfcn.h> | |
| 39 #import <limits.h> | |
| 40 #import <errno.h> | |
|
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41 #import <sys/types.h> |
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42 #import <sys/ptrace.h> |
| 8750 | 43 #include "libproc_impl.h" |
| 4006 | 44 |
| 8750 | 45 #define UNSUPPORTED_ARCH "Unsupported architecture!" |
| 46 | |
| 47 #if defined(x86_64) && !defined(amd64) | |
| 48 #define amd64 1 | |
| 49 #endif | |
| 50 | |
| 51 #if amd64 | |
| 52 #include "sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext.h" | |
| 53 #else | |
| 54 #error UNSUPPORTED_ARCH | |
| 55 #endif | |
| 4006 | 56 |
| 57 static jfieldID symbolicatorID = 0; // set in _init0 | |
| 58 static jfieldID taskID = 0; // set in _init0 | |
| 59 | |
| 8750 | 60 static jfieldID p_ps_prochandle_ID = 0; |
| 61 static jfieldID loadObjectList_ID = 0; | |
| 62 static jmethodID listAdd_ID = 0; | |
| 63 | |
| 64 static jmethodID createClosestSymbol_ID = 0; | |
| 65 static jmethodID createLoadObject_ID = 0; | |
| 66 static jmethodID getJavaThreadsInfo_ID = 0; | |
| 67 | |
| 68 // indicator if thread id (lwpid_t) was set | |
| 69 static bool _threads_filled = false; | |
| 70 | |
| 4006 | 71 static void putSymbolicator(JNIEnv *env, jobject this_obj, id symbolicator) { |
| 72 (*env)->SetLongField(env, this_obj, symbolicatorID, (jlong)(intptr_t)symbolicator); | |
| 73 } | |
| 74 | |
| 75 static id getSymbolicator(JNIEnv *env, jobject this_obj) { | |
| 76 jlong ptr = (*env)->GetLongField(env, this_obj, symbolicatorID); | |
| 77 return (id)(intptr_t)ptr; | |
| 78 } | |
| 79 | |
| 80 static void putTask(JNIEnv *env, jobject this_obj, task_t task) { | |
| 81 (*env)->SetLongField(env, this_obj, taskID, (jlong)task); | |
| 82 } | |
| 83 | |
| 84 static task_t getTask(JNIEnv *env, jobject this_obj) { | |
| 85 jlong ptr = (*env)->GetLongField(env, this_obj, taskID); | |
| 86 return (task_t)ptr; | |
| 87 } | |
| 88 | |
| 89 #define CHECK_EXCEPTION_(value) if ((*env)->ExceptionOccurred(env)) { return value; } | |
| 90 #define CHECK_EXCEPTION if ((*env)->ExceptionOccurred(env)) { return;} | |
| 91 #define THROW_NEW_DEBUGGER_EXCEPTION_(str, value) { throw_new_debugger_exception(env, str); return value; } | |
| 92 #define THROW_NEW_DEBUGGER_EXCEPTION(str) { throw_new_debugger_exception(env, str); return;} | |
| 6782 | 93 #define CHECK_EXCEPTION_CLEAR if ((*env)->ExceptionOccurred(env)) { (*env)->ExceptionClear(env); } |
| 94 #define CHECK_EXCEPTION_CLEAR_VOID if ((*env)->ExceptionOccurred(env)) { (*env)->ExceptionClear(env); return; } | |
| 95 #define CHECK_EXCEPTION_CLEAR_(value) if ((*env)->ExceptionOccurred(env)) { (*env)->ExceptionClear(env); return value; } | |
| 4006 | 96 |
| 97 static void throw_new_debugger_exception(JNIEnv* env, const char* errMsg) { | |
| 98 (*env)->ThrowNew(env, (*env)->FindClass(env, "sun/jvm/hotspot/debugger/DebuggerException"), errMsg); | |
| 99 } | |
| 100 | |
| 8750 | 101 static struct ps_prochandle* get_proc_handle(JNIEnv* env, jobject this_obj) { |
| 102 jlong ptr = (*env)->GetLongField(env, this_obj, p_ps_prochandle_ID); | |
| 103 return (struct ps_prochandle*)(intptr_t)ptr; | |
| 104 } | |
| 105 | |
| 4006 | 106 #if defined(__i386__) |
| 107 #define hsdb_thread_state_t x86_thread_state32_t | |
| 108 #define hsdb_float_state_t x86_float_state32_t | |
| 109 #define HSDB_THREAD_STATE x86_THREAD_STATE32 | |
| 110 #define HSDB_FLOAT_STATE x86_FLOAT_STATE32 | |
| 111 #define HSDB_THREAD_STATE_COUNT x86_THREAD_STATE32_COUNT | |
| 112 #define HSDB_FLOAT_STATE_COUNT x86_FLOAT_STATE32_COUNT | |
| 113 #elif defined(__x86_64__) | |
| 114 #define hsdb_thread_state_t x86_thread_state64_t | |
| 115 #define hsdb_float_state_t x86_float_state64_t | |
| 116 #define HSDB_THREAD_STATE x86_THREAD_STATE64 | |
| 117 #define HSDB_FLOAT_STATE x86_FLOAT_STATE64 | |
| 118 #define HSDB_THREAD_STATE_COUNT x86_THREAD_STATE64_COUNT | |
| 119 #define HSDB_FLOAT_STATE_COUNT x86_FLOAT_STATE64_COUNT | |
| 120 #else | |
| 8750 | 121 #error UNSUPPORTED_ARCH |
| 4006 | 122 #endif |
| 123 | |
| 124 /* | |
| 125 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal | |
| 126 * Method: init0 | |
| 127 * Signature: ()V | |
| 128 */ | |
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129 JNIEXPORT void JNICALL |
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130 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_init0(JNIEnv *env, jclass cls) { |
| 4006 | 131 symbolicatorID = (*env)->GetFieldID(env, cls, "symbolicator", "J"); |
| 132 taskID = (*env)->GetFieldID(env, cls, "task", "J"); | |
| 133 CHECK_EXCEPTION; | |
| 8750 | 134 |
| 135 // for core file | |
| 136 p_ps_prochandle_ID = (*env)->GetFieldID(env, cls, "p_ps_prochandle", "J"); | |
| 137 CHECK_EXCEPTION; | |
| 138 loadObjectList_ID = (*env)->GetFieldID(env, cls, "loadObjectList", "Ljava/util/List;"); | |
| 139 CHECK_EXCEPTION; | |
| 140 | |
| 141 // methods we use | |
| 142 createClosestSymbol_ID = (*env)->GetMethodID(env, cls, "createClosestSymbol", | |
| 143 "(Ljava/lang/String;J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;"); | |
| 144 CHECK_EXCEPTION; | |
| 145 createLoadObject_ID = (*env)->GetMethodID(env, cls, "createLoadObject", | |
| 146 "(Ljava/lang/String;JJ)Lsun/jvm/hotspot/debugger/cdbg/LoadObject;"); | |
| 147 CHECK_EXCEPTION; | |
| 148 | |
| 149 // java.util.List method we call | |
| 150 jclass listClass = (*env)->FindClass(env, "java/util/List"); | |
| 151 CHECK_EXCEPTION; | |
| 152 listAdd_ID = (*env)->GetMethodID(env, listClass, "add", "(Ljava/lang/Object;)Z"); | |
| 153 CHECK_EXCEPTION; | |
| 154 getJavaThreadsInfo_ID = (*env)->GetMethodID(env, cls, "getJavaThreadsInfo", | |
| 155 "()[J"); | |
| 156 CHECK_EXCEPTION; | |
| 157 | |
| 158 init_libproc(getenv("LIBSAPROC_DEBUG") != NULL); | |
| 159 } | |
| 160 | |
| 161 JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_getAddressSize | |
| 162 (JNIEnv *env, jclass cls) | |
| 163 { | |
| 164 #ifdef _LP64 | |
| 165 return 8; | |
| 166 #else | |
| 167 #error UNSUPPORTED_ARCH | |
| 168 #endif | |
| 169 } | |
| 170 | |
| 171 /** called by Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_lookupByName0 */ | |
| 172 jlong lookupByNameIncore( | |
| 173 JNIEnv *env, struct ps_prochandle *ph, jobject this_obj, jstring objectName, jstring symbolName) | |
| 174 { | |
| 175 const char *objectName_cstr, *symbolName_cstr; | |
| 176 jlong addr; | |
| 177 jboolean isCopy; | |
| 178 objectName_cstr = NULL; | |
| 179 if (objectName != NULL) { | |
| 180 objectName_cstr = (*env)->GetStringUTFChars(env, objectName, &isCopy); | |
| 181 CHECK_EXCEPTION_(0); | |
| 182 } | |
| 183 symbolName_cstr = (*env)->GetStringUTFChars(env, symbolName, &isCopy); | |
| 184 CHECK_EXCEPTION_(0); | |
| 185 | |
| 186 print_debug("look for %s \n", symbolName_cstr); | |
| 187 addr = (jlong) lookup_symbol(ph, objectName_cstr, symbolName_cstr); | |
| 188 | |
| 189 if (objectName_cstr != NULL) { | |
| 190 (*env)->ReleaseStringUTFChars(env, objectName, objectName_cstr); | |
| 191 } | |
| 192 (*env)->ReleaseStringUTFChars(env, symbolName, symbolName_cstr); | |
| 193 return addr; | |
| 4006 | 194 } |
| 195 | |
| 196 /* | |
| 197 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal | |
| 198 * Method: lookupByName0 | |
| 199 * Signature: (Ljava/lang/String;Ljava/lang/String;)J | |
| 200 */ | |
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201 JNIEXPORT jlong JNICALL |
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202 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_lookupByName0( |
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203 JNIEnv *env, jobject this_obj, |
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204 jstring objectName, jstring symbolName) |
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205 { |
| 8750 | 206 struct ps_prochandle* ph = get_proc_handle(env, this_obj); |
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207 if (ph != NULL && ph->core != NULL) { |
| 8750 | 208 return lookupByNameIncore(env, ph, this_obj, objectName, symbolName); |
| 209 } | |
| 210 | |
| 4006 | 211 jlong address = 0; |
| 212 | |
| 213 JNF_COCOA_ENTER(env); | |
| 214 NSString *symbolNameString = JNFJavaToNSString(env, symbolName); | |
| 215 | |
| 8750 | 216 print_debug("lookupInProcess called for %s\n", [symbolNameString UTF8String]); |
| 4006 | 217 |
| 218 id symbolicator = getSymbolicator(env, this_obj); | |
| 219 if (symbolicator != nil) { | |
| 220 uint64_t (*dynamicCall)(id, SEL, NSString *) = (uint64_t (*)(id, SEL, NSString *))&objc_msgSend; | |
| 221 address = (jlong) dynamicCall(symbolicator, @selector(addressForSymbol:), symbolNameString); | |
| 222 } | |
| 223 | |
| 8750 | 224 print_debug("address of symbol %s = %llx\n", [symbolNameString UTF8String], address); |
| 4006 | 225 JNF_COCOA_EXIT(env); |
| 226 | |
| 227 return address; | |
| 228 } | |
| 229 | |
| 230 /* | |
| 231 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal | |
| 8750 | 232 * Method: lookupByAddress0 |
| 233 * Signature: (J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol; | |
| 234 */ | |
| 235 JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_lookupByAddress0 | |
| 236 (JNIEnv *env, jobject this_obj, jlong addr) { | |
| 237 uintptr_t offset; | |
| 238 const char* sym = NULL; | |
| 239 | |
| 240 struct ps_prochandle* ph = get_proc_handle(env, this_obj); | |
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241 if (ph != NULL && ph->core != NULL) { |
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242 sym = symbol_for_pc(ph, (uintptr_t) addr, &offset); |
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243 if (sym == NULL) return 0; |
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244 return (*env)->CallObjectMethod(env, this_obj, createClosestSymbol_ID, |
| 8750 | 245 (*env)->NewStringUTF(env, sym), (jlong)offset); |
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246 } |
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247 return 0; |
| 8750 | 248 } |
| 249 | |
| 250 /** called from Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_readBytesFromProcess0 */ | |
| 251 jbyteArray readBytesFromCore( | |
| 252 JNIEnv *env, struct ps_prochandle *ph, jobject this_obj, jlong addr, jlong numBytes) | |
| 253 { | |
| 254 jboolean isCopy; | |
| 255 jbyteArray array; | |
| 256 jbyte *bufPtr; | |
| 257 ps_err_e err; | |
| 258 | |
| 259 array = (*env)->NewByteArray(env, numBytes); | |
| 260 CHECK_EXCEPTION_(0); | |
| 261 bufPtr = (*env)->GetByteArrayElements(env, array, &isCopy); | |
| 262 CHECK_EXCEPTION_(0); | |
| 263 | |
| 264 err = ps_pread(ph, (psaddr_t) (uintptr_t)addr, bufPtr, numBytes); | |
| 265 (*env)->ReleaseByteArrayElements(env, array, bufPtr, 0); | |
| 266 return (err == PS_OK)? array : 0; | |
| 267 } | |
| 268 | |
| 269 /* | |
| 270 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal | |
| 4006 | 271 * Method: readBytesFromProcess0 |
| 272 * Signature: (JJ)Lsun/jvm/hotspot/debugger/ReadResult; | |
| 273 */ | |
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274 JNIEXPORT jbyteArray JNICALL |
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275 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_readBytesFromProcess0( |
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276 JNIEnv *env, jobject this_obj, |
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277 jlong addr, jlong numBytes) |
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278 { |
| 8750 | 279 print_debug("readBytesFromProcess called. addr = %llx numBytes = %lld\n", addr, numBytes); |
| 4006 | 280 |
| 281 // must allocate storage instead of using former parameter buf | |
| 282 jbyteArray array; | |
| 8750 | 283 |
| 284 struct ps_prochandle* ph = get_proc_handle(env, this_obj); | |
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285 if (ph != NULL && ph->core != NULL) { |
| 8750 | 286 return readBytesFromCore(env, ph, this_obj, addr, numBytes); |
| 287 } | |
| 4006 | 288 |
| 289 array = (*env)->NewByteArray(env, numBytes); | |
| 290 CHECK_EXCEPTION_(0); | |
| 291 | |
| 292 unsigned long alignedAddress; | |
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293 unsigned long alignedLength = 0; |
| 4006 | 294 kern_return_t result; |
| 295 vm_offset_t *pages; | |
| 296 int *mapped; | |
| 297 long pageCount; | |
| 298 uint byteCount; | |
| 299 int i; | |
| 300 unsigned long remaining; | |
| 301 | |
| 302 alignedAddress = trunc_page(addr); | |
| 303 if (addr != alignedAddress) { | |
| 304 alignedLength += addr - alignedAddress; | |
| 305 } | |
| 306 alignedLength = round_page(numBytes); | |
| 307 pageCount = alignedLength/vm_page_size; | |
| 308 | |
| 309 // Allocate storage for pages and flags. | |
| 310 pages = malloc(pageCount * sizeof(vm_offset_t)); | |
| 311 mapped = calloc(pageCount, sizeof(int)); | |
| 312 | |
| 313 task_t gTask = getTask(env, this_obj); | |
| 314 // Try to read each of the pages. | |
| 315 for (i = 0; i < pageCount; i++) { | |
| 316 result = vm_read(gTask, alignedAddress + i*vm_page_size, vm_page_size, | |
| 317 &pages[i], &byteCount); | |
| 318 mapped[i] = (result == KERN_SUCCESS); | |
| 319 // assume all failures are unmapped pages | |
| 320 } | |
| 321 | |
| 8750 | 322 print_debug("%ld pages\n", pageCount); |
| 4006 | 323 |
| 324 remaining = numBytes; | |
| 325 | |
| 326 for (i = 0; i < pageCount; i++) { | |
| 327 unsigned long len = vm_page_size; | |
| 328 unsigned long start = 0; | |
| 329 | |
| 330 if (i == 0) { | |
| 331 start = addr - alignedAddress; | |
| 332 len = vm_page_size - start; | |
| 333 } | |
| 334 | |
| 335 if (i == (pageCount - 1)) { | |
| 336 len = remaining; | |
| 337 } | |
| 338 | |
| 339 if (mapped[i]) { | |
| 8750 | 340 print_debug("page %d mapped (len %ld start %ld)\n", i, len, start); |
| 4006 | 341 (*env)->SetByteArrayRegion(env, array, 0, len, ((jbyte *) pages[i] + start)); |
| 342 vm_deallocate(mach_task_self(), pages[i], vm_page_size); | |
| 343 } | |
| 344 | |
| 345 remaining -= len; | |
| 346 } | |
| 347 | |
| 348 free (pages); | |
| 349 free (mapped); | |
| 350 return array; | |
| 351 } | |
| 352 | |
| 8750 | 353 /** Only used for core file reading, set thread_id for threads which is got after core file parsed. |
| 354 * Thread context is available in Mach-O core file but thread id is not. We can get thread id | |
| 355 * from Threads which store all java threads information when they are created. Here we can identify | |
| 356 * them as java threads by checking if a thread's rsp or rbp within a java thread's stack. | |
| 357 * Note Macosx uses unique_thread_id which is different from other platforms though printed ids | |
| 358 * are still pthread id. Function BsdDebuggerLocal.getJavaThreadsInfo returns an array of long | |
| 359 * integers to host all java threads' id, stack_start, stack_end as: | |
| 360 * [uid0, stack_start0, stack_end0, uid1, stack_start1, stack_end1, ...] | |
| 361 * | |
| 362 * The work cannot be done at init0 since Threads is not available yet(VM not initialized yet). | |
| 363 * This function should be called only once if succeeded | |
| 364 */ | |
| 365 bool fill_java_threads(JNIEnv* env, jobject this_obj, struct ps_prochandle* ph) { | |
| 366 int n = 0, i = 0, j; | |
| 367 struct reg regs; | |
| 368 | |
| 369 jlongArray thrinfos = (*env)->CallObjectMethod(env, this_obj, getJavaThreadsInfo_ID); | |
| 370 CHECK_EXCEPTION_(false); | |
| 371 int len = (int)(*env)->GetArrayLength(env, thrinfos); | |
| 372 uint64_t* cinfos = (uint64_t *)(*env)->GetLongArrayElements(env, thrinfos, NULL); | |
| 373 CHECK_EXCEPTION_(false); | |
| 374 n = get_num_threads(ph); | |
| 375 print_debug("fill_java_threads called, num_of_thread = %d\n", n); | |
| 376 for (i = 0; i < n; i++) { | |
| 377 if (!get_nth_lwp_regs(ph, i, ®s)) { | |
| 378 print_debug("Could not get regs of thread %d, already set!\n", i); | |
| 379 return false; | |
| 380 } | |
| 381 for (j = 0; j < len; j += 3) { | |
| 382 lwpid_t uid = cinfos[j]; | |
| 383 uint64_t beg = cinfos[j + 1]; | |
| 384 uint64_t end = cinfos[j + 2]; | |
| 385 if ((regs.r_rsp < end && regs.r_rsp >= beg) || | |
| 386 (regs.r_rbp < end && regs.r_rbp >= beg)) { | |
| 387 set_lwp_id(ph, i, uid); | |
| 388 break; | |
| 389 } | |
| 390 } | |
| 391 } | |
| 392 (*env)->ReleaseLongArrayElements(env, thrinfos, (jlong*)cinfos, 0); | |
| 393 CHECK_EXCEPTION_(false); | |
| 394 return true; | |
| 395 } | |
| 396 | |
| 397 /* For core file only, called from | |
| 398 * Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_getThreadIntegerRegisterSet0 | |
| 399 */ | |
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400 jlongArray getThreadIntegerRegisterSetFromCore(JNIEnv *env, jobject this_obj, long lwp_id, struct ps_prochandle* ph) { |
| 8750 | 401 if (!_threads_filled) { |
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402 if (!fill_java_threads(env, this_obj, ph)) { |
| 8750 | 403 throw_new_debugger_exception(env, "Failed to fill in threads"); |
| 404 return 0; | |
| 405 } else { | |
| 406 _threads_filled = true; | |
| 407 } | |
| 408 } | |
| 409 | |
| 410 struct reg gregs; | |
| 411 jboolean isCopy; | |
| 412 jlongArray array; | |
| 413 jlong *regs; | |
| 414 | |
| 415 if (get_lwp_regs(ph, lwp_id, &gregs) != true) { | |
| 416 THROW_NEW_DEBUGGER_EXCEPTION_("get_thread_regs failed for a lwp", 0); | |
| 417 } | |
| 418 | |
| 419 #undef NPRGREG | |
| 420 #undef REG_INDEX | |
| 421 #if amd64 | |
| 422 #define NPRGREG sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_NPRGREG | |
| 423 #define REG_INDEX(reg) sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_##reg | |
| 424 | |
| 425 array = (*env)->NewLongArray(env, NPRGREG); | |
| 426 CHECK_EXCEPTION_(0); | |
| 427 regs = (*env)->GetLongArrayElements(env, array, &isCopy); | |
| 428 | |
| 429 regs[REG_INDEX(R15)] = gregs.r_r15; | |
| 430 regs[REG_INDEX(R14)] = gregs.r_r14; | |
| 431 regs[REG_INDEX(R13)] = gregs.r_r13; | |
| 432 regs[REG_INDEX(R12)] = gregs.r_r12; | |
| 433 regs[REG_INDEX(RBP)] = gregs.r_rbp; | |
| 434 regs[REG_INDEX(RBX)] = gregs.r_rbx; | |
| 435 regs[REG_INDEX(R11)] = gregs.r_r11; | |
| 436 regs[REG_INDEX(R10)] = gregs.r_r10; | |
| 437 regs[REG_INDEX(R9)] = gregs.r_r9; | |
| 438 regs[REG_INDEX(R8)] = gregs.r_r8; | |
| 439 regs[REG_INDEX(RAX)] = gregs.r_rax; | |
| 440 regs[REG_INDEX(RCX)] = gregs.r_rcx; | |
| 441 regs[REG_INDEX(RDX)] = gregs.r_rdx; | |
| 442 regs[REG_INDEX(RSI)] = gregs.r_rsi; | |
| 443 regs[REG_INDEX(RDI)] = gregs.r_rdi; | |
| 444 regs[REG_INDEX(RIP)] = gregs.r_rip; | |
| 445 regs[REG_INDEX(CS)] = gregs.r_cs; | |
| 446 regs[REG_INDEX(RSP)] = gregs.r_rsp; | |
| 447 regs[REG_INDEX(SS)] = gregs.r_ss; | |
| 448 regs[REG_INDEX(FSBASE)] = 0; | |
| 449 regs[REG_INDEX(GSBASE)] = 0; | |
| 450 regs[REG_INDEX(DS)] = gregs.r_ds; | |
| 451 regs[REG_INDEX(ES)] = gregs.r_es; | |
| 452 regs[REG_INDEX(FS)] = gregs.r_fs; | |
| 453 regs[REG_INDEX(GS)] = gregs.r_gs; | |
| 454 regs[REG_INDEX(TRAPNO)] = gregs.r_trapno; | |
| 455 regs[REG_INDEX(RFL)] = gregs.r_rflags; | |
| 456 | |
| 457 #endif /* amd64 */ | |
| 458 (*env)->ReleaseLongArrayElements(env, array, regs, JNI_COMMIT); | |
| 459 return array; | |
| 460 } | |
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461 |
| 4006 | 462 /* |
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463 * Lookup the thread_t that corresponds to the given thread_id. |
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464 * The thread_id should be the result from calling thread_info() with THREAD_IDENTIFIER_INFO |
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465 * and reading the m_ident_info.thread_id returned. |
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466 * The returned thread_t is the mach send right to the kernel port for the corresponding thread. |
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467 * |
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468 * We cannot simply use the OSThread._thread_id field in the JVM. This is set to ::mach_thread_self() |
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469 * in the VM, but that thread port is not valid for a remote debugger to access the thread. |
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470 */ |
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471 thread_t |
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472 lookupThreadFromThreadId(task_t task, jlong thread_id) { |
| 8750 | 473 print_debug("lookupThreadFromThreadId thread_id=0x%llx\n", thread_id); |
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474 |
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475 thread_array_t thread_list = NULL; |
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476 mach_msg_type_number_t thread_list_count = 0; |
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477 thread_t result_thread = 0; |
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478 int i; |
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479 |
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480 // get the list of all the send rights |
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481 kern_return_t result = task_threads(task, &thread_list, &thread_list_count); |
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482 if (result != KERN_SUCCESS) { |
| 8750 | 483 print_debug("task_threads returned 0x%x\n", result); |
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484 return 0; |
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485 } |
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486 |
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487 for(i = 0 ; i < thread_list_count; i++) { |
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488 thread_identifier_info_data_t m_ident_info; |
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489 mach_msg_type_number_t count = THREAD_IDENTIFIER_INFO_COUNT; |
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490 |
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491 // get the THREAD_IDENTIFIER_INFO for the send right |
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492 result = thread_info(thread_list[i], THREAD_IDENTIFIER_INFO, (thread_info_t) &m_ident_info, &count); |
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493 if (result != KERN_SUCCESS) { |
| 8750 | 494 print_debug("thread_info returned 0x%x\n", result); |
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495 break; |
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496 } |
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497 |
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498 // if this is the one we're looking for, return the send right |
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499 if (thread_id == m_ident_info.thread_id) |
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500 { |
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501 result_thread = thread_list[i]; |
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502 break; |
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503 } |
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504 } |
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505 |
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506 vm_size_t thread_list_size = (vm_size_t) (thread_list_count * sizeof (thread_t)); |
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507 vm_deallocate(mach_task_self(), (vm_address_t) thread_list, thread_list_count); |
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508 |
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509 return result_thread; |
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510 } |
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511 |
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512 |
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513 /* |
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514 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal |
| 4006 | 515 * Method: getThreadIntegerRegisterSet0 |
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516 * Signature: (J)[J |
| 4006 | 517 */ |
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518 JNIEXPORT jlongArray JNICALL |
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519 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_getThreadIntegerRegisterSet0( |
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520 JNIEnv *env, jobject this_obj, |
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521 jlong thread_id) |
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522 { |
| 8750 | 523 print_debug("getThreadRegisterSet0 called\n"); |
| 524 | |
| 525 struct ps_prochandle* ph = get_proc_handle(env, this_obj); | |
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526 if (ph != NULL && ph->core != NULL) { |
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527 return getThreadIntegerRegisterSetFromCore(env, this_obj, thread_id, ph); |
| 8750 | 528 } |
| 4006 | 529 |
| 530 kern_return_t result; | |
| 531 thread_t tid; | |
| 532 mach_msg_type_number_t count = HSDB_THREAD_STATE_COUNT; | |
| 533 hsdb_thread_state_t state; | |
| 534 jlongArray registerArray; | |
| 535 jlong *primitiveArray; | |
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536 task_t gTask = getTask(env, this_obj); |
| 4006 | 537 |
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538 tid = lookupThreadFromThreadId(gTask, thread_id); |
| 4006 | 539 |
| 540 result = thread_get_state(tid, HSDB_THREAD_STATE, (thread_state_t)&state, &count); | |
| 541 | |
| 542 if (result != KERN_SUCCESS) { | |
| 8750 | 543 print_error("getregs: thread_get_state(%d) failed (%d)\n", tid, result); |
| 4006 | 544 return NULL; |
| 545 } | |
| 546 | |
| 8750 | 547 #if amd64 |
| 548 #define NPRGREG sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_NPRGREG | |
| 549 #undef REG_INDEX | |
| 550 #define REG_INDEX(reg) sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_##reg | |
| 551 | |
| 552 // 64 bit | |
| 553 print_debug("Getting threads for a 64-bit process\n"); | |
| 554 registerArray = (*env)->NewLongArray(env, NPRGREG); | |
| 555 CHECK_EXCEPTION_(0); | |
| 556 primitiveArray = (*env)->GetLongArrayElements(env, registerArray, NULL); | |
| 4006 | 557 |
| 8750 | 558 primitiveArray[REG_INDEX(R15)] = state.__r15; |
| 559 primitiveArray[REG_INDEX(R14)] = state.__r14; | |
| 560 primitiveArray[REG_INDEX(R13)] = state.__r13; | |
| 561 primitiveArray[REG_INDEX(R12)] = state.__r12; | |
| 562 primitiveArray[REG_INDEX(R11)] = state.__r11; | |
| 563 primitiveArray[REG_INDEX(R10)] = state.__r10; | |
| 564 primitiveArray[REG_INDEX(R9)] = state.__r9; | |
| 565 primitiveArray[REG_INDEX(R8)] = state.__r8; | |
| 566 primitiveArray[REG_INDEX(RDI)] = state.__rdi; | |
| 567 primitiveArray[REG_INDEX(RSI)] = state.__rsi; | |
| 568 primitiveArray[REG_INDEX(RBP)] = state.__rbp; | |
| 569 primitiveArray[REG_INDEX(RBX)] = state.__rbx; | |
| 570 primitiveArray[REG_INDEX(RDX)] = state.__rdx; | |
| 571 primitiveArray[REG_INDEX(RCX)] = state.__rcx; | |
| 572 primitiveArray[REG_INDEX(RAX)] = state.__rax; | |
| 573 primitiveArray[REG_INDEX(TRAPNO)] = 0; // trapno, not used | |
| 574 primitiveArray[REG_INDEX(ERR)] = 0; // err, not used | |
| 575 primitiveArray[REG_INDEX(RIP)] = state.__rip; | |
| 576 primitiveArray[REG_INDEX(CS)] = state.__cs; | |
| 577 primitiveArray[REG_INDEX(RFL)] = state.__rflags; | |
| 578 primitiveArray[REG_INDEX(RSP)] = state.__rsp; | |
| 579 primitiveArray[REG_INDEX(SS)] = 0; // We don't have SS | |
| 580 primitiveArray[REG_INDEX(FS)] = state.__fs; | |
| 581 primitiveArray[REG_INDEX(GS)] = state.__gs; | |
| 582 primitiveArray[REG_INDEX(ES)] = 0; | |
| 583 primitiveArray[REG_INDEX(DS)] = 0; | |
| 584 primitiveArray[REG_INDEX(FSBASE)] = 0; | |
| 585 primitiveArray[REG_INDEX(GSBASE)] = 0; | |
| 586 print_debug("set registers\n"); | |
| 4006 | 587 |
| 8750 | 588 (*env)->ReleaseLongArrayElements(env, registerArray, primitiveArray, 0); |
| 4006 | 589 |
| 590 #else | |
| 8750 | 591 #error UNSUPPORTED_ARCH |
| 592 #endif /* amd64 */ | |
| 4006 | 593 |
| 594 return registerArray; | |
| 595 } | |
| 596 | |
| 597 /* | |
|
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598 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal |
| 4006 | 599 * Method: translateTID0 |
| 600 * Signature: (I)I | |
| 601 */ | |
| 602 JNIEXPORT jint JNICALL | |
|
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603 Java_sun_jvm_hotspot_debugger_macosx_MacOSXDebuggerLocal_translateTID0( |
|
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604 JNIEnv *env, jobject this_obj, jint tid) |
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605 { |
| 8750 | 606 print_debug("translateTID0 called on tid = 0x%x\n", (int)tid); |
| 4006 | 607 |
| 608 kern_return_t result; | |
| 609 thread_t foreign_tid, usable_tid; | |
| 610 mach_msg_type_name_t type; | |
|
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611 |
| 4006 | 612 foreign_tid = tid; |
| 613 | |
| 614 task_t gTask = getTask(env, this_obj); | |
| 615 result = mach_port_extract_right(gTask, foreign_tid, | |
| 616 MACH_MSG_TYPE_COPY_SEND, | |
| 617 &usable_tid, &type); | |
| 618 if (result != KERN_SUCCESS) | |
| 619 return -1; | |
| 620 | |
| 8750 | 621 print_debug("translateTID0: 0x%x -> 0x%x\n", foreign_tid, usable_tid); |
| 4006 | 622 |
| 623 return (jint) usable_tid; | |
| 624 } | |
| 625 | |
|
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626 |
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627 static bool ptrace_continue(pid_t pid, int signal) { |
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628 // pass the signal to the process so we don't swallow it |
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629 int res; |
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630 if ((res = ptrace(PT_CONTINUE, pid, (caddr_t)1, signal)) < 0) { |
| 8750 | 631 print_error("attach: ptrace(PT_CONTINUE, %d) failed with %d\n", pid, res); |
|
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632 return false; |
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633 } |
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634 return true; |
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635 } |
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636 |
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637 // waits until the ATTACH has stopped the process |
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638 // by signal SIGSTOP |
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639 static bool ptrace_waitpid(pid_t pid) { |
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640 int ret; |
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641 int status; |
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642 while (true) { |
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643 // Wait for debuggee to stop. |
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644 ret = waitpid(pid, &status, 0); |
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645 if (ret >= 0) { |
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646 if (WIFSTOPPED(status)) { |
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647 // Any signal will stop the thread, make sure it is SIGSTOP. Otherwise SIGSTOP |
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648 // will still be pending and delivered when the process is DETACHED and the process |
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649 // will go to sleep. |
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650 if (WSTOPSIG(status) == SIGSTOP) { |
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651 // Debuggee stopped by SIGSTOP. |
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652 return true; |
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653 } |
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654 if (!ptrace_continue(pid, WSTOPSIG(status))) { |
| 8750 | 655 print_error("attach: Failed to correctly attach to VM. VM might HANG! [PTRACE_CONT failed, stopped by %d]\n", WSTOPSIG(status)); |
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656 return false; |
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657 } |
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658 } else { |
| 8750 | 659 print_error("attach: waitpid(): Child process exited/terminated (status = 0x%x)\n", status); |
|
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660 return false; |
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661 } |
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662 } else { |
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663 switch (errno) { |
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664 case EINTR: |
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665 continue; |
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666 break; |
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667 case ECHILD: |
| 8750 | 668 print_error("attach: waitpid() failed. Child process pid (%d) does not exist \n", pid); |
|
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669 break; |
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670 case EINVAL: |
| 8750 | 671 print_error("attach: waitpid() failed. Invalid options argument.\n"); |
|
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672 break; |
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673 default: |
| 8750 | 674 print_error("attach: waitpid() failed. Unexpected error %d\n",errno); |
|
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675 break; |
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676 } |
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677 return false; |
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678 } |
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679 } |
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680 } |
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681 |
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682 // attach to a process/thread specified by "pid" |
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683 static bool ptrace_attach(pid_t pid) { |
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684 int res; |
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685 if ((res = ptrace(PT_ATTACH, pid, 0, 0)) < 0) { |
| 8750 | 686 print_error("ptrace(PT_ATTACH, %d) failed with %d\n", pid, res); |
|
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687 return false; |
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688 } else { |
|
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689 return ptrace_waitpid(pid); |
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690 } |
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691 } |
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|
692 |
| 4006 | 693 /* |
| 694 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal | |
| 695 * Method: attach0 | |
| 696 * Signature: (I)V | |
| 697 */ | |
| 8750 | 698 JNIEXPORT void JNICALL |
|
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699 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_attach0__I( |
| 8750 | 700 JNIEnv *env, jobject this_obj, jint jpid) |
|
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|
701 { |
| 8750 | 702 print_debug("attach0 called for jpid=%d\n", (int)jpid); |
| 703 | |
| 4006 | 704 JNF_COCOA_ENTER(env); |
| 8750 | 705 |
| 4006 | 706 kern_return_t result; |
| 707 task_t gTask = 0; | |
| 708 result = task_for_pid(mach_task_self(), jpid, &gTask); | |
| 709 if (result != KERN_SUCCESS) { | |
|
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710 print_error("attach: task_for_pid(%d) failed: '%s' (%d)\n", (int)jpid, mach_error_string(result), result); |
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711 THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the process. Could be caused by an incorrect pid or lack of privileges."); |
| 4006 | 712 } |
| 713 putTask(env, this_obj, gTask); | |
| 714 | |
|
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715 // use ptrace to stop the process |
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716 // on os x, ptrace only needs to be called on the process, not the individual threads |
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717 if (ptrace_attach(jpid) != true) { |
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718 mach_port_deallocate(mach_task_self(), gTask); |
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719 THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the process"); |
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720 } |
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|
721 |
| 4006 | 722 id symbolicator = nil; |
| 723 id jrsSymbolicator = objc_lookUpClass("JRSSymbolicator"); | |
| 724 if (jrsSymbolicator != nil) { | |
| 725 id (*dynamicCall)(id, SEL, pid_t) = (id (*)(id, SEL, pid_t))&objc_msgSend; | |
| 726 symbolicator = dynamicCall(jrsSymbolicator, @selector(symbolicatorForPid:), (pid_t)jpid); | |
| 727 } | |
| 728 if (symbolicator != nil) { | |
| 729 CFRetain(symbolicator); // pin symbolicator while in java heap | |
| 730 } | |
| 731 | |
| 732 putSymbolicator(env, this_obj, symbolicator); | |
| 733 if (symbolicator == nil) { | |
| 734 THROW_NEW_DEBUGGER_EXCEPTION("Can't attach symbolicator to the process"); | |
| 735 } | |
| 736 | |
| 737 JNF_COCOA_EXIT(env); | |
| 738 } | |
| 739 | |
| 8750 | 740 /** For core file, |
| 741 called from Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2 */ | |
| 742 static void fillLoadObjects(JNIEnv* env, jobject this_obj, struct ps_prochandle* ph) { | |
| 743 int n = 0, i = 0; | |
| 744 | |
| 745 // add load objects | |
| 746 n = get_num_libs(ph); | |
| 747 for (i = 0; i < n; i++) { | |
| 748 uintptr_t base; | |
| 749 const char* name; | |
| 750 jobject loadObject; | |
| 751 jobject loadObjectList; | |
| 752 | |
| 753 base = get_lib_base(ph, i); | |
| 754 name = get_lib_name(ph, i); | |
| 755 loadObject = (*env)->CallObjectMethod(env, this_obj, createLoadObject_ID, | |
| 756 (*env)->NewStringUTF(env, name), (jlong)0, (jlong)base); | |
| 757 CHECK_EXCEPTION; | |
| 758 loadObjectList = (*env)->GetObjectField(env, this_obj, loadObjectList_ID); | |
| 759 CHECK_EXCEPTION; | |
| 760 (*env)->CallBooleanMethod(env, loadObjectList, listAdd_ID, loadObject); | |
| 761 CHECK_EXCEPTION; | |
| 762 } | |
| 763 } | |
| 764 | |
| 765 /* | |
| 766 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal | |
| 767 * Method: attach0 | |
| 768 * Signature: (Ljava/lang/String;Ljava/lang/String;)V | |
| 769 */ | |
| 770 JNIEXPORT void JNICALL | |
| 771 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2( | |
| 772 JNIEnv *env, jobject this_obj, jstring execName, jstring coreName) | |
| 773 { | |
| 774 const char *execName_cstr; | |
| 775 const char *coreName_cstr; | |
| 776 jboolean isCopy; | |
| 777 struct ps_prochandle* ph; | |
| 778 | |
| 779 execName_cstr = (*env)->GetStringUTFChars(env, execName, &isCopy); | |
| 780 CHECK_EXCEPTION; | |
| 781 coreName_cstr = (*env)->GetStringUTFChars(env, coreName, &isCopy); | |
| 782 CHECK_EXCEPTION; | |
| 783 | |
| 784 print_debug("attach: %s %s\n", execName_cstr, coreName_cstr); | |
| 785 | |
| 786 if ( (ph = Pgrab_core(execName_cstr, coreName_cstr)) == NULL) { | |
| 787 (*env)->ReleaseStringUTFChars(env, execName, execName_cstr); | |
| 788 (*env)->ReleaseStringUTFChars(env, coreName, coreName_cstr); | |
| 789 THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the core file"); | |
| 790 } | |
| 791 (*env)->SetLongField(env, this_obj, p_ps_prochandle_ID, (jlong)(intptr_t)ph); | |
| 792 (*env)->ReleaseStringUTFChars(env, execName, execName_cstr); | |
| 793 (*env)->ReleaseStringUTFChars(env, coreName, coreName_cstr); | |
| 794 fillLoadObjects(env, this_obj, ph); | |
| 795 } | |
| 796 | |
| 4006 | 797 /* |
| 798 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal | |
| 799 * Method: detach0 | |
| 800 * Signature: ()V | |
| 801 */ | |
| 8750 | 802 JNIEXPORT void JNICALL |
|
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|
803 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_detach0( |
| 8750 | 804 JNIEnv *env, jobject this_obj) |
|
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|
805 { |
| 8750 | 806 print_debug("detach0 called\n"); |
| 807 struct ps_prochandle* ph = get_proc_handle(env, this_obj); | |
| 808 if (ph != NULL && ph->core != NULL) { | |
| 809 Prelease(ph); | |
| 810 return; | |
| 811 } | |
| 4006 | 812 JNF_COCOA_ENTER(env); |
| 813 task_t gTask = getTask(env, this_obj); | |
|
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|
814 |
|
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|
815 // detach from the ptraced process causing it to resume execution |
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|
816 int pid; |
|
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|
817 kern_return_t k_res; |
|
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|
818 k_res = pid_for_task(gTask, &pid); |
|
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|
819 if (k_res != KERN_SUCCESS) { |
| 8750 | 820 print_error("detach: pid_for_task(%d) failed (%d)\n", pid, k_res); |
|
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821 } |
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822 else { |
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823 int res = ptrace(PT_DETACH, pid, 0, 0); |
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824 if (res < 0) { |
| 8750 | 825 print_error("detach: ptrace(PT_DETACH, %d) failed (%d)\n", pid, res); |
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826 } |
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827 } |
| 8750 | 828 |
| 4006 | 829 mach_port_deallocate(mach_task_self(), gTask); |
| 830 id symbolicator = getSymbolicator(env, this_obj); | |
| 831 if (symbolicator != nil) { | |
| 832 CFRelease(symbolicator); | |
| 833 } | |
| 834 JNF_COCOA_EXIT(env); | |
| 835 } |