Mercurial > hg > truffle
annotate agent/src/os/bsd/MacosxDebuggerLocal.m @ 8750:39432a1cefdd
8003348: SA can not read core file on OS
Summary: Macosx uses Mach-O file format for binary files, not ELF format. Currently SA works on core files on other platforms, t his change enables SA work on core file generated on Darwin.
Reviewed-by: sla, sspitsyn
Contributed-by: yumin.qi@oracle.com
| author | minqi |
|---|---|
| date | Thu, 14 Mar 2013 00:33:08 -0700 |
| parents | 40b7c6b800ab |
| children | 9f96b7a853bc |
| 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); |
| 207 if (ph->core != NULL) { | |
| 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); | |
| 241 sym = symbol_for_pc(ph, (uintptr_t) addr, &offset); | |
| 242 if (sym == NULL) return 0; | |
| 243 return (*env)->CallObjectMethod(env, this_obj, createClosestSymbol_ID, | |
| 244 (*env)->NewStringUTF(env, sym), (jlong)offset); | |
| 245 } | |
| 246 | |
| 247 /** called from Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_readBytesFromProcess0 */ | |
| 248 jbyteArray readBytesFromCore( | |
| 249 JNIEnv *env, struct ps_prochandle *ph, jobject this_obj, jlong addr, jlong numBytes) | |
| 250 { | |
| 251 jboolean isCopy; | |
| 252 jbyteArray array; | |
| 253 jbyte *bufPtr; | |
| 254 ps_err_e err; | |
| 255 | |
| 256 array = (*env)->NewByteArray(env, numBytes); | |
| 257 CHECK_EXCEPTION_(0); | |
| 258 bufPtr = (*env)->GetByteArrayElements(env, array, &isCopy); | |
| 259 CHECK_EXCEPTION_(0); | |
| 260 | |
| 261 err = ps_pread(ph, (psaddr_t) (uintptr_t)addr, bufPtr, numBytes); | |
| 262 (*env)->ReleaseByteArrayElements(env, array, bufPtr, 0); | |
| 263 return (err == PS_OK)? array : 0; | |
| 264 } | |
| 265 | |
| 266 /* | |
| 267 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal | |
| 4006 | 268 * Method: readBytesFromProcess0 |
| 269 * Signature: (JJ)Lsun/jvm/hotspot/debugger/ReadResult; | |
| 270 */ | |
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271 JNIEXPORT jbyteArray JNICALL |
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272 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_readBytesFromProcess0( |
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273 JNIEnv *env, jobject this_obj, |
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274 jlong addr, jlong numBytes) |
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275 { |
| 8750 | 276 print_debug("readBytesFromProcess called. addr = %llx numBytes = %lld\n", addr, numBytes); |
| 4006 | 277 |
| 278 // must allocate storage instead of using former parameter buf | |
| 279 jbyteArray array; | |
| 8750 | 280 |
| 281 struct ps_prochandle* ph = get_proc_handle(env, this_obj); | |
| 282 if (ph->core != NULL) { | |
| 283 return readBytesFromCore(env, ph, this_obj, addr, numBytes); | |
| 284 } | |
| 4006 | 285 |
| 286 array = (*env)->NewByteArray(env, numBytes); | |
| 287 CHECK_EXCEPTION_(0); | |
| 288 | |
| 289 unsigned long alignedAddress; | |
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290 unsigned long alignedLength = 0; |
| 4006 | 291 kern_return_t result; |
| 292 vm_offset_t *pages; | |
| 293 int *mapped; | |
| 294 long pageCount; | |
| 295 uint byteCount; | |
| 296 int i; | |
| 297 unsigned long remaining; | |
| 298 | |
| 299 alignedAddress = trunc_page(addr); | |
| 300 if (addr != alignedAddress) { | |
| 301 alignedLength += addr - alignedAddress; | |
| 302 } | |
| 303 alignedLength = round_page(numBytes); | |
| 304 pageCount = alignedLength/vm_page_size; | |
| 305 | |
| 306 // Allocate storage for pages and flags. | |
| 307 pages = malloc(pageCount * sizeof(vm_offset_t)); | |
| 308 mapped = calloc(pageCount, sizeof(int)); | |
| 309 | |
| 310 task_t gTask = getTask(env, this_obj); | |
| 311 // Try to read each of the pages. | |
| 312 for (i = 0; i < pageCount; i++) { | |
| 313 result = vm_read(gTask, alignedAddress + i*vm_page_size, vm_page_size, | |
| 314 &pages[i], &byteCount); | |
| 315 mapped[i] = (result == KERN_SUCCESS); | |
| 316 // assume all failures are unmapped pages | |
| 317 } | |
| 318 | |
| 8750 | 319 print_debug("%ld pages\n", pageCount); |
| 4006 | 320 |
| 321 remaining = numBytes; | |
| 322 | |
| 323 for (i = 0; i < pageCount; i++) { | |
| 324 unsigned long len = vm_page_size; | |
| 325 unsigned long start = 0; | |
| 326 | |
| 327 if (i == 0) { | |
| 328 start = addr - alignedAddress; | |
| 329 len = vm_page_size - start; | |
| 330 } | |
| 331 | |
| 332 if (i == (pageCount - 1)) { | |
| 333 len = remaining; | |
| 334 } | |
| 335 | |
| 336 if (mapped[i]) { | |
| 8750 | 337 print_debug("page %d mapped (len %ld start %ld)\n", i, len, start); |
| 4006 | 338 (*env)->SetByteArrayRegion(env, array, 0, len, ((jbyte *) pages[i] + start)); |
| 339 vm_deallocate(mach_task_self(), pages[i], vm_page_size); | |
| 340 } | |
| 341 | |
| 342 remaining -= len; | |
| 343 } | |
| 344 | |
| 345 free (pages); | |
| 346 free (mapped); | |
| 347 return array; | |
| 348 } | |
| 349 | |
| 8750 | 350 /** Only used for core file reading, set thread_id for threads which is got after core file parsed. |
| 351 * Thread context is available in Mach-O core file but thread id is not. We can get thread id | |
| 352 * from Threads which store all java threads information when they are created. Here we can identify | |
| 353 * them as java threads by checking if a thread's rsp or rbp within a java thread's stack. | |
| 354 * Note Macosx uses unique_thread_id which is different from other platforms though printed ids | |
| 355 * are still pthread id. Function BsdDebuggerLocal.getJavaThreadsInfo returns an array of long | |
| 356 * integers to host all java threads' id, stack_start, stack_end as: | |
| 357 * [uid0, stack_start0, stack_end0, uid1, stack_start1, stack_end1, ...] | |
| 358 * | |
| 359 * The work cannot be done at init0 since Threads is not available yet(VM not initialized yet). | |
| 360 * This function should be called only once if succeeded | |
| 361 */ | |
| 362 bool fill_java_threads(JNIEnv* env, jobject this_obj, struct ps_prochandle* ph) { | |
| 363 int n = 0, i = 0, j; | |
| 364 struct reg regs; | |
| 365 | |
| 366 jlongArray thrinfos = (*env)->CallObjectMethod(env, this_obj, getJavaThreadsInfo_ID); | |
| 367 CHECK_EXCEPTION_(false); | |
| 368 int len = (int)(*env)->GetArrayLength(env, thrinfos); | |
| 369 uint64_t* cinfos = (uint64_t *)(*env)->GetLongArrayElements(env, thrinfos, NULL); | |
| 370 CHECK_EXCEPTION_(false); | |
| 371 n = get_num_threads(ph); | |
| 372 print_debug("fill_java_threads called, num_of_thread = %d\n", n); | |
| 373 for (i = 0; i < n; i++) { | |
| 374 if (!get_nth_lwp_regs(ph, i, ®s)) { | |
| 375 print_debug("Could not get regs of thread %d, already set!\n", i); | |
| 376 return false; | |
| 377 } | |
| 378 for (j = 0; j < len; j += 3) { | |
| 379 lwpid_t uid = cinfos[j]; | |
| 380 uint64_t beg = cinfos[j + 1]; | |
| 381 uint64_t end = cinfos[j + 2]; | |
| 382 if ((regs.r_rsp < end && regs.r_rsp >= beg) || | |
| 383 (regs.r_rbp < end && regs.r_rbp >= beg)) { | |
| 384 set_lwp_id(ph, i, uid); | |
| 385 break; | |
| 386 } | |
| 387 } | |
| 388 } | |
| 389 (*env)->ReleaseLongArrayElements(env, thrinfos, (jlong*)cinfos, 0); | |
| 390 CHECK_EXCEPTION_(false); | |
| 391 return true; | |
| 392 } | |
| 393 | |
| 394 /* For core file only, called from | |
| 395 * Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_getThreadIntegerRegisterSet0 | |
| 396 */ | |
| 397 jlongArray getThreadIntegerRegisterSetFromCore(JNIEnv *env, jobject this_obj, long lwp_id) { | |
| 398 if (!_threads_filled) { | |
| 399 if (!fill_java_threads(env, this_obj, get_proc_handle(env, this_obj))) { | |
| 400 throw_new_debugger_exception(env, "Failed to fill in threads"); | |
| 401 return 0; | |
| 402 } else { | |
| 403 _threads_filled = true; | |
| 404 } | |
| 405 } | |
| 406 | |
| 407 struct reg gregs; | |
| 408 jboolean isCopy; | |
| 409 jlongArray array; | |
| 410 jlong *regs; | |
| 411 | |
| 412 struct ps_prochandle* ph = get_proc_handle(env, this_obj); | |
| 413 if (get_lwp_regs(ph, lwp_id, &gregs) != true) { | |
| 414 THROW_NEW_DEBUGGER_EXCEPTION_("get_thread_regs failed for a lwp", 0); | |
| 415 } | |
| 416 | |
| 417 #undef NPRGREG | |
| 418 #undef REG_INDEX | |
| 419 #if amd64 | |
| 420 #define NPRGREG sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_NPRGREG | |
| 421 #define REG_INDEX(reg) sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_##reg | |
| 422 | |
| 423 array = (*env)->NewLongArray(env, NPRGREG); | |
| 424 CHECK_EXCEPTION_(0); | |
| 425 regs = (*env)->GetLongArrayElements(env, array, &isCopy); | |
| 426 | |
| 427 regs[REG_INDEX(R15)] = gregs.r_r15; | |
| 428 regs[REG_INDEX(R14)] = gregs.r_r14; | |
| 429 regs[REG_INDEX(R13)] = gregs.r_r13; | |
| 430 regs[REG_INDEX(R12)] = gregs.r_r12; | |
| 431 regs[REG_INDEX(RBP)] = gregs.r_rbp; | |
| 432 regs[REG_INDEX(RBX)] = gregs.r_rbx; | |
| 433 regs[REG_INDEX(R11)] = gregs.r_r11; | |
| 434 regs[REG_INDEX(R10)] = gregs.r_r10; | |
| 435 regs[REG_INDEX(R9)] = gregs.r_r9; | |
| 436 regs[REG_INDEX(R8)] = gregs.r_r8; | |
| 437 regs[REG_INDEX(RAX)] = gregs.r_rax; | |
| 438 regs[REG_INDEX(RCX)] = gregs.r_rcx; | |
| 439 regs[REG_INDEX(RDX)] = gregs.r_rdx; | |
| 440 regs[REG_INDEX(RSI)] = gregs.r_rsi; | |
| 441 regs[REG_INDEX(RDI)] = gregs.r_rdi; | |
| 442 regs[REG_INDEX(RIP)] = gregs.r_rip; | |
| 443 regs[REG_INDEX(CS)] = gregs.r_cs; | |
| 444 regs[REG_INDEX(RSP)] = gregs.r_rsp; | |
| 445 regs[REG_INDEX(SS)] = gregs.r_ss; | |
| 446 regs[REG_INDEX(FSBASE)] = 0; | |
| 447 regs[REG_INDEX(GSBASE)] = 0; | |
| 448 regs[REG_INDEX(DS)] = gregs.r_ds; | |
| 449 regs[REG_INDEX(ES)] = gregs.r_es; | |
| 450 regs[REG_INDEX(FS)] = gregs.r_fs; | |
| 451 regs[REG_INDEX(GS)] = gregs.r_gs; | |
| 452 regs[REG_INDEX(TRAPNO)] = gregs.r_trapno; | |
| 453 regs[REG_INDEX(RFL)] = gregs.r_rflags; | |
| 454 | |
| 455 #endif /* amd64 */ | |
| 456 (*env)->ReleaseLongArrayElements(env, array, regs, JNI_COMMIT); | |
| 457 return array; | |
| 458 } | |
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459 |
| 4006 | 460 /* |
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461 * Lookup the thread_t that corresponds to the given thread_id. |
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462 * The thread_id should be the result from calling thread_info() with THREAD_IDENTIFIER_INFO |
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463 * and reading the m_ident_info.thread_id returned. |
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464 * The returned thread_t is the mach send right to the kernel port for the corresponding thread. |
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465 * |
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466 * We cannot simply use the OSThread._thread_id field in the JVM. This is set to ::mach_thread_self() |
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467 * in the VM, but that thread port is not valid for a remote debugger to access the thread. |
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468 */ |
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469 thread_t |
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470 lookupThreadFromThreadId(task_t task, jlong thread_id) { |
| 8750 | 471 print_debug("lookupThreadFromThreadId thread_id=0x%llx\n", thread_id); |
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472 |
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473 thread_array_t thread_list = NULL; |
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474 mach_msg_type_number_t thread_list_count = 0; |
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475 thread_t result_thread = 0; |
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476 int i; |
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477 |
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478 // get the list of all the send rights |
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479 kern_return_t result = task_threads(task, &thread_list, &thread_list_count); |
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480 if (result != KERN_SUCCESS) { |
| 8750 | 481 print_debug("task_threads returned 0x%x\n", result); |
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482 return 0; |
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483 } |
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484 |
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485 for(i = 0 ; i < thread_list_count; i++) { |
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486 thread_identifier_info_data_t m_ident_info; |
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487 mach_msg_type_number_t count = THREAD_IDENTIFIER_INFO_COUNT; |
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488 |
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489 // get the THREAD_IDENTIFIER_INFO for the send right |
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490 result = thread_info(thread_list[i], THREAD_IDENTIFIER_INFO, (thread_info_t) &m_ident_info, &count); |
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491 if (result != KERN_SUCCESS) { |
| 8750 | 492 print_debug("thread_info returned 0x%x\n", result); |
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493 break; |
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494 } |
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495 |
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496 // if this is the one we're looking for, return the send right |
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497 if (thread_id == m_ident_info.thread_id) |
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498 { |
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499 result_thread = thread_list[i]; |
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500 break; |
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501 } |
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502 } |
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503 |
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504 vm_size_t thread_list_size = (vm_size_t) (thread_list_count * sizeof (thread_t)); |
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505 vm_deallocate(mach_task_self(), (vm_address_t) thread_list, thread_list_count); |
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506 |
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507 return result_thread; |
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508 } |
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509 |
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510 |
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511 /* |
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512 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal |
| 4006 | 513 * Method: getThreadIntegerRegisterSet0 |
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514 * Signature: (J)[J |
| 4006 | 515 */ |
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516 JNIEXPORT jlongArray JNICALL |
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517 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_getThreadIntegerRegisterSet0( |
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518 JNIEnv *env, jobject this_obj, |
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519 jlong thread_id) |
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520 { |
| 8750 | 521 print_debug("getThreadRegisterSet0 called\n"); |
| 522 | |
| 523 struct ps_prochandle* ph = get_proc_handle(env, this_obj); | |
| 524 if (ph->core != NULL) { | |
| 525 return getThreadIntegerRegisterSetFromCore(env, this_obj, thread_id); | |
| 526 } | |
| 4006 | 527 |
| 528 kern_return_t result; | |
| 529 thread_t tid; | |
| 530 mach_msg_type_number_t count = HSDB_THREAD_STATE_COUNT; | |
| 531 hsdb_thread_state_t state; | |
| 532 jlongArray registerArray; | |
| 533 jlong *primitiveArray; | |
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534 task_t gTask = getTask(env, this_obj); |
| 4006 | 535 |
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536 tid = lookupThreadFromThreadId(gTask, thread_id); |
| 4006 | 537 |
| 538 result = thread_get_state(tid, HSDB_THREAD_STATE, (thread_state_t)&state, &count); | |
| 539 | |
| 540 if (result != KERN_SUCCESS) { | |
| 8750 | 541 print_error("getregs: thread_get_state(%d) failed (%d)\n", tid, result); |
| 4006 | 542 return NULL; |
| 543 } | |
| 544 | |
| 8750 | 545 #if amd64 |
| 546 #define NPRGREG sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_NPRGREG | |
| 547 #undef REG_INDEX | |
| 548 #define REG_INDEX(reg) sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_##reg | |
| 549 | |
| 550 // 64 bit | |
| 551 print_debug("Getting threads for a 64-bit process\n"); | |
| 552 registerArray = (*env)->NewLongArray(env, NPRGREG); | |
| 553 CHECK_EXCEPTION_(0); | |
| 554 primitiveArray = (*env)->GetLongArrayElements(env, registerArray, NULL); | |
| 4006 | 555 |
| 8750 | 556 primitiveArray[REG_INDEX(R15)] = state.__r15; |
| 557 primitiveArray[REG_INDEX(R14)] = state.__r14; | |
| 558 primitiveArray[REG_INDEX(R13)] = state.__r13; | |
| 559 primitiveArray[REG_INDEX(R12)] = state.__r12; | |
| 560 primitiveArray[REG_INDEX(R11)] = state.__r11; | |
| 561 primitiveArray[REG_INDEX(R10)] = state.__r10; | |
| 562 primitiveArray[REG_INDEX(R9)] = state.__r9; | |
| 563 primitiveArray[REG_INDEX(R8)] = state.__r8; | |
| 564 primitiveArray[REG_INDEX(RDI)] = state.__rdi; | |
| 565 primitiveArray[REG_INDEX(RSI)] = state.__rsi; | |
| 566 primitiveArray[REG_INDEX(RBP)] = state.__rbp; | |
| 567 primitiveArray[REG_INDEX(RBX)] = state.__rbx; | |
| 568 primitiveArray[REG_INDEX(RDX)] = state.__rdx; | |
| 569 primitiveArray[REG_INDEX(RCX)] = state.__rcx; | |
| 570 primitiveArray[REG_INDEX(RAX)] = state.__rax; | |
| 571 primitiveArray[REG_INDEX(TRAPNO)] = 0; // trapno, not used | |
| 572 primitiveArray[REG_INDEX(ERR)] = 0; // err, not used | |
| 573 primitiveArray[REG_INDEX(RIP)] = state.__rip; | |
| 574 primitiveArray[REG_INDEX(CS)] = state.__cs; | |
| 575 primitiveArray[REG_INDEX(RFL)] = state.__rflags; | |
| 576 primitiveArray[REG_INDEX(RSP)] = state.__rsp; | |
| 577 primitiveArray[REG_INDEX(SS)] = 0; // We don't have SS | |
| 578 primitiveArray[REG_INDEX(FS)] = state.__fs; | |
| 579 primitiveArray[REG_INDEX(GS)] = state.__gs; | |
| 580 primitiveArray[REG_INDEX(ES)] = 0; | |
| 581 primitiveArray[REG_INDEX(DS)] = 0; | |
| 582 primitiveArray[REG_INDEX(FSBASE)] = 0; | |
| 583 primitiveArray[REG_INDEX(GSBASE)] = 0; | |
| 584 print_debug("set registers\n"); | |
| 4006 | 585 |
| 8750 | 586 (*env)->ReleaseLongArrayElements(env, registerArray, primitiveArray, 0); |
| 4006 | 587 |
| 588 #else | |
| 8750 | 589 #error UNSUPPORTED_ARCH |
| 590 #endif /* amd64 */ | |
| 4006 | 591 |
| 592 return registerArray; | |
| 593 } | |
| 594 | |
| 595 /* | |
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596 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal |
| 4006 | 597 * Method: translateTID0 |
| 598 * Signature: (I)I | |
| 599 */ | |
| 600 JNIEXPORT jint JNICALL | |
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601 Java_sun_jvm_hotspot_debugger_macosx_MacOSXDebuggerLocal_translateTID0( |
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602 JNIEnv *env, jobject this_obj, jint tid) |
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603 { |
| 8750 | 604 print_debug("translateTID0 called on tid = 0x%x\n", (int)tid); |
| 4006 | 605 |
| 606 kern_return_t result; | |
| 607 thread_t foreign_tid, usable_tid; | |
| 608 mach_msg_type_name_t type; | |
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609 |
| 4006 | 610 foreign_tid = tid; |
| 611 | |
| 612 task_t gTask = getTask(env, this_obj); | |
| 613 result = mach_port_extract_right(gTask, foreign_tid, | |
| 614 MACH_MSG_TYPE_COPY_SEND, | |
| 615 &usable_tid, &type); | |
| 616 if (result != KERN_SUCCESS) | |
| 617 return -1; | |
| 618 | |
| 8750 | 619 print_debug("translateTID0: 0x%x -> 0x%x\n", foreign_tid, usable_tid); |
| 4006 | 620 |
| 621 return (jint) usable_tid; | |
| 622 } | |
| 623 | |
|
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624 |
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625 static bool ptrace_continue(pid_t pid, int signal) { |
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626 // pass the signal to the process so we don't swallow it |
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627 int res; |
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628 if ((res = ptrace(PT_CONTINUE, pid, (caddr_t)1, signal)) < 0) { |
| 8750 | 629 print_error("attach: ptrace(PT_CONTINUE, %d) failed with %d\n", pid, res); |
|
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630 return false; |
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631 } |
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632 return true; |
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633 } |
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634 |
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635 // waits until the ATTACH has stopped the process |
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636 // by signal SIGSTOP |
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637 static bool ptrace_waitpid(pid_t pid) { |
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638 int ret; |
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639 int status; |
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640 while (true) { |
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641 // Wait for debuggee to stop. |
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642 ret = waitpid(pid, &status, 0); |
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643 if (ret >= 0) { |
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644 if (WIFSTOPPED(status)) { |
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645 // Any signal will stop the thread, make sure it is SIGSTOP. Otherwise SIGSTOP |
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646 // will still be pending and delivered when the process is DETACHED and the process |
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647 // will go to sleep. |
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648 if (WSTOPSIG(status) == SIGSTOP) { |
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649 // Debuggee stopped by SIGSTOP. |
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650 return true; |
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651 } |
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652 if (!ptrace_continue(pid, WSTOPSIG(status))) { |
| 8750 | 653 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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654 return false; |
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655 } |
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656 } else { |
| 8750 | 657 print_error("attach: waitpid(): Child process exited/terminated (status = 0x%x)\n", status); |
|
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658 return false; |
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659 } |
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660 } else { |
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661 switch (errno) { |
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662 case EINTR: |
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663 continue; |
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664 break; |
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665 case ECHILD: |
| 8750 | 666 print_error("attach: waitpid() failed. Child process pid (%d) does not exist \n", pid); |
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667 break; |
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668 case EINVAL: |
| 8750 | 669 print_error("attach: waitpid() failed. Invalid options argument.\n"); |
|
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670 break; |
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671 default: |
| 8750 | 672 print_error("attach: waitpid() failed. Unexpected error %d\n",errno); |
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673 break; |
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674 } |
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675 return false; |
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676 } |
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677 } |
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678 } |
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679 |
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680 // attach to a process/thread specified by "pid" |
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681 static bool ptrace_attach(pid_t pid) { |
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682 int res; |
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683 if ((res = ptrace(PT_ATTACH, pid, 0, 0)) < 0) { |
| 8750 | 684 print_error("ptrace(PT_ATTACH, %d) failed with %d\n", pid, res); |
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685 return false; |
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686 } else { |
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687 return ptrace_waitpid(pid); |
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688 } |
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689 } |
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690 |
| 4006 | 691 /* |
| 692 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal | |
| 693 * Method: attach0 | |
| 694 * Signature: (I)V | |
| 695 */ | |
| 8750 | 696 JNIEXPORT void JNICALL |
|
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697 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_attach0__I( |
| 8750 | 698 JNIEnv *env, jobject this_obj, jint jpid) |
|
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699 { |
| 8750 | 700 print_debug("attach0 called for jpid=%d\n", (int)jpid); |
| 701 | |
| 4006 | 702 JNF_COCOA_ENTER(env); |
| 8750 | 703 |
| 4006 | 704 kern_return_t result; |
| 705 task_t gTask = 0; | |
| 706 result = task_for_pid(mach_task_self(), jpid, &gTask); | |
| 707 if (result != KERN_SUCCESS) { | |
| 8750 | 708 print_error("attach: task_for_pid(%d) failed (%d)\n", (int)jpid, result); |
| 4006 | 709 THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the process"); |
| 710 } | |
| 711 putTask(env, this_obj, gTask); | |
| 712 | |
|
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713 // use ptrace to stop the process |
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714 // on os x, ptrace only needs to be called on the process, not the individual threads |
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715 if (ptrace_attach(jpid) != true) { |
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716 mach_port_deallocate(mach_task_self(), gTask); |
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717 THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the process"); |
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718 } |
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719 |
| 4006 | 720 id symbolicator = nil; |
| 721 id jrsSymbolicator = objc_lookUpClass("JRSSymbolicator"); | |
| 722 if (jrsSymbolicator != nil) { | |
| 723 id (*dynamicCall)(id, SEL, pid_t) = (id (*)(id, SEL, pid_t))&objc_msgSend; | |
| 724 symbolicator = dynamicCall(jrsSymbolicator, @selector(symbolicatorForPid:), (pid_t)jpid); | |
| 725 } | |
| 726 if (symbolicator != nil) { | |
| 727 CFRetain(symbolicator); // pin symbolicator while in java heap | |
| 728 } | |
| 729 | |
| 730 putSymbolicator(env, this_obj, symbolicator); | |
| 731 if (symbolicator == nil) { | |
| 732 THROW_NEW_DEBUGGER_EXCEPTION("Can't attach symbolicator to the process"); | |
| 733 } | |
| 734 | |
| 735 JNF_COCOA_EXIT(env); | |
| 736 } | |
| 737 | |
| 8750 | 738 /** For core file, |
| 739 called from Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2 */ | |
| 740 static void fillLoadObjects(JNIEnv* env, jobject this_obj, struct ps_prochandle* ph) { | |
| 741 int n = 0, i = 0; | |
| 742 | |
| 743 // add load objects | |
| 744 n = get_num_libs(ph); | |
| 745 for (i = 0; i < n; i++) { | |
| 746 uintptr_t base; | |
| 747 const char* name; | |
| 748 jobject loadObject; | |
| 749 jobject loadObjectList; | |
| 750 | |
| 751 base = get_lib_base(ph, i); | |
| 752 name = get_lib_name(ph, i); | |
| 753 loadObject = (*env)->CallObjectMethod(env, this_obj, createLoadObject_ID, | |
| 754 (*env)->NewStringUTF(env, name), (jlong)0, (jlong)base); | |
| 755 CHECK_EXCEPTION; | |
| 756 loadObjectList = (*env)->GetObjectField(env, this_obj, loadObjectList_ID); | |
| 757 CHECK_EXCEPTION; | |
| 758 (*env)->CallBooleanMethod(env, loadObjectList, listAdd_ID, loadObject); | |
| 759 CHECK_EXCEPTION; | |
| 760 } | |
| 761 } | |
| 762 | |
| 763 /* | |
| 764 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal | |
| 765 * Method: attach0 | |
| 766 * Signature: (Ljava/lang/String;Ljava/lang/String;)V | |
| 767 */ | |
| 768 JNIEXPORT void JNICALL | |
| 769 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2( | |
| 770 JNIEnv *env, jobject this_obj, jstring execName, jstring coreName) | |
| 771 { | |
| 772 const char *execName_cstr; | |
| 773 const char *coreName_cstr; | |
| 774 jboolean isCopy; | |
| 775 struct ps_prochandle* ph; | |
| 776 | |
| 777 execName_cstr = (*env)->GetStringUTFChars(env, execName, &isCopy); | |
| 778 CHECK_EXCEPTION; | |
| 779 coreName_cstr = (*env)->GetStringUTFChars(env, coreName, &isCopy); | |
| 780 CHECK_EXCEPTION; | |
| 781 | |
| 782 print_debug("attach: %s %s\n", execName_cstr, coreName_cstr); | |
| 783 | |
| 784 if ( (ph = Pgrab_core(execName_cstr, coreName_cstr)) == NULL) { | |
| 785 (*env)->ReleaseStringUTFChars(env, execName, execName_cstr); | |
| 786 (*env)->ReleaseStringUTFChars(env, coreName, coreName_cstr); | |
| 787 THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the core file"); | |
| 788 } | |
| 789 (*env)->SetLongField(env, this_obj, p_ps_prochandle_ID, (jlong)(intptr_t)ph); | |
| 790 (*env)->ReleaseStringUTFChars(env, execName, execName_cstr); | |
| 791 (*env)->ReleaseStringUTFChars(env, coreName, coreName_cstr); | |
| 792 fillLoadObjects(env, this_obj, ph); | |
| 793 } | |
| 794 | |
| 4006 | 795 /* |
| 796 * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal | |
| 797 * Method: detach0 | |
| 798 * Signature: ()V | |
| 799 */ | |
| 8750 | 800 JNIEXPORT void JNICALL |
|
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|
801 Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_detach0( |
| 8750 | 802 JNIEnv *env, jobject this_obj) |
|
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|
803 { |
| 8750 | 804 print_debug("detach0 called\n"); |
| 805 struct ps_prochandle* ph = get_proc_handle(env, this_obj); | |
| 806 if (ph != NULL && ph->core != NULL) { | |
| 807 Prelease(ph); | |
| 808 return; | |
| 809 } | |
| 4006 | 810 JNF_COCOA_ENTER(env); |
| 811 task_t gTask = getTask(env, this_obj); | |
|
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812 |
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813 // detach from the ptraced process causing it to resume execution |
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|
814 int pid; |
|
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|
815 kern_return_t k_res; |
|
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816 k_res = pid_for_task(gTask, &pid); |
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817 if (k_res != KERN_SUCCESS) { |
| 8750 | 818 print_error("detach: pid_for_task(%d) failed (%d)\n", pid, k_res); |
|
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|
819 } |
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|
820 else { |
|
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821 int res = ptrace(PT_DETACH, pid, 0, 0); |
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822 if (res < 0) { |
| 8750 | 823 print_error("detach: ptrace(PT_DETACH, %d) failed (%d)\n", pid, res); |
|
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|
824 } |
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|
825 } |
| 8750 | 826 |
| 4006 | 827 mach_port_deallocate(mach_task_self(), gTask); |
| 828 id symbolicator = getSymbolicator(env, this_obj); | |
| 829 if (symbolicator != nil) { | |
| 830 CFRelease(symbolicator); | |
| 831 } | |
| 832 JNF_COCOA_EXIT(env); | |
| 833 } |