Mercurial > hg > truffle
annotate agent/src/os/solaris/proc/saproc.cpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | 405c634f4aaa |
| children | f6a055fcf47d |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 #include "salibproc.h" | |
| 26 #include "sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal.h" | |
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27 #ifndef SOLARIS_11_B159_OR_LATER |
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28 #include <sys/utsname.h> |
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29 #endif |
| 0 | 30 #include <thread_db.h> |
| 31 #include <strings.h> | |
| 32 #include <limits.h> | |
| 33 #include <demangle.h> | |
| 34 #include <stdarg.h> | |
| 35 #include <stdlib.h> | |
| 36 #include <errno.h> | |
| 37 | |
| 38 #define CHECK_EXCEPTION_(value) if(env->ExceptionOccurred()) { return value; } | |
| 39 #define CHECK_EXCEPTION if(env->ExceptionOccurred()) { return;} | |
| 40 #define THROW_NEW_DEBUGGER_EXCEPTION_(str, value) { throwNewDebuggerException(env, str); return value; } | |
| 41 #define THROW_NEW_DEBUGGER_EXCEPTION(str) { throwNewDebuggerException(env, str); return;} | |
| 42 | |
| 43 #define SYMBOL_BUF_SIZE 256 | |
| 44 #define ERR_MSG_SIZE (PATH_MAX + 256) | |
| 45 | |
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46 // debug modes |
| 0 | 47 static int _libsaproc_debug = 0; |
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48 #ifndef SOLARIS_11_B159_OR_LATER |
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49 static bool _Pstack_iter_debug = false; |
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50 |
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51 static void dprintf_2(const char* format,...) { |
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52 if (_Pstack_iter_debug) { |
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53 va_list alist; |
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54 |
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55 va_start(alist, format); |
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56 fputs("Pstack_iter DEBUG: ", stderr); |
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57 vfprintf(stderr, format, alist); |
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58 va_end(alist); |
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59 } |
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60 } |
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61 #endif // !SOLARIS_11_B159_OR_LATER |
| 0 | 62 |
| 63 static void print_debug(const char* format,...) { | |
| 64 if (_libsaproc_debug) { | |
| 65 va_list alist; | |
| 66 | |
| 67 va_start(alist, format); | |
| 68 fputs("libsaproc DEBUG: ", stderr); | |
| 69 vfprintf(stderr, format, alist); | |
| 70 va_end(alist); | |
| 71 } | |
| 72 } | |
| 73 | |
| 74 struct Debugger { | |
| 75 JNIEnv* env; | |
| 76 jobject this_obj; | |
| 77 }; | |
| 78 | |
| 79 struct DebuggerWithObject : Debugger { | |
| 80 jobject obj; | |
| 81 }; | |
| 82 | |
| 83 struct DebuggerWith2Objects : DebuggerWithObject { | |
| 84 jobject obj2; | |
| 85 }; | |
| 86 | |
| 87 /* | |
| 88 * Portions of user thread level detail gathering code is from pstack source | |
| 89 * code. See pstack.c in Solaris 2.8 user commands source code. | |
| 90 */ | |
| 91 | |
| 92 static void throwNewDebuggerException(JNIEnv* env, const char* errMsg) { | |
| 93 env->ThrowNew(env->FindClass("sun/jvm/hotspot/debugger/DebuggerException"), errMsg); | |
| 94 } | |
| 95 | |
| 96 // JNI ids for some fields, methods | |
| 97 | |
| 98 // libproc handler pointer | |
| 99 static jfieldID p_ps_prochandle_ID = 0; | |
| 100 | |
| 101 // libthread.so dlopen handle, thread agent ptr and function pointers | |
| 102 static jfieldID libthread_db_handle_ID = 0; | |
| 103 static jfieldID p_td_thragent_t_ID = 0; | |
| 104 static jfieldID p_td_init_ID = 0; | |
| 105 static jfieldID p_td_ta_new_ID = 0; | |
| 106 static jfieldID p_td_ta_delete_ID = 0; | |
| 107 static jfieldID p_td_ta_thr_iter_ID = 0; | |
| 108 static jfieldID p_td_thr_get_info_ID = 0; | |
| 109 static jfieldID p_td_ta_map_id2thr_ID = 0; | |
| 110 static jfieldID p_td_thr_getgregs_ID = 0; | |
| 111 | |
| 112 // reg index fields | |
| 113 static jfieldID pcRegIndex_ID = 0; | |
| 114 static jfieldID fpRegIndex_ID = 0; | |
| 115 | |
| 116 // part of the class sharing workaround | |
| 117 static jfieldID classes_jsa_fd_ID = 0; | |
| 118 static jfieldID p_file_map_header_ID = 0; | |
| 119 | |
| 120 // method ids | |
| 121 | |
| 122 static jmethodID getThreadForThreadId_ID = 0; | |
| 123 static jmethodID createSenderFrame_ID = 0; | |
| 124 static jmethodID createLoadObject_ID = 0; | |
| 125 static jmethodID createClosestSymbol_ID = 0; | |
| 126 static jmethodID listAdd_ID = 0; | |
| 127 | |
| 128 /* | |
| 129 * Functions we need from libthread_db | |
| 130 */ | |
| 131 typedef td_err_e | |
| 132 (*p_td_init_t)(void); | |
| 133 typedef td_err_e | |
| 134 (*p_td_ta_new_t)(void *, td_thragent_t **); | |
| 135 typedef td_err_e | |
| 136 (*p_td_ta_delete_t)(td_thragent_t *); | |
| 137 typedef td_err_e | |
| 138 (*p_td_ta_thr_iter_t)(const td_thragent_t *, td_thr_iter_f *, void *, | |
| 139 td_thr_state_e, int, sigset_t *, unsigned); | |
| 140 typedef td_err_e | |
| 141 (*p_td_thr_get_info_t)(const td_thrhandle_t *, td_thrinfo_t *); | |
| 142 typedef td_err_e | |
| 143 (*p_td_ta_map_id2thr_t)(const td_thragent_t *, thread_t, td_thrhandle_t *); | |
| 144 typedef td_err_e | |
| 145 (*p_td_thr_getgregs_t)(const td_thrhandle_t *, prgregset_t); | |
| 146 | |
| 147 static void | |
| 148 clear_libthread_db_ptrs(JNIEnv* env, jobject this_obj) { | |
| 149 // release libthread_db agent, if we had created | |
| 150 p_td_ta_delete_t p_td_ta_delete = 0; | |
| 151 p_td_ta_delete = (p_td_ta_delete_t) env->GetLongField(this_obj, p_td_ta_delete_ID); | |
| 152 | |
| 153 td_thragent_t *p_td_thragent_t = 0; | |
| 154 p_td_thragent_t = (td_thragent_t*) env->GetLongField(this_obj, p_td_thragent_t_ID); | |
| 155 if (p_td_thragent_t != 0 && p_td_ta_delete != 0) { | |
| 156 p_td_ta_delete(p_td_thragent_t); | |
| 157 } | |
| 158 | |
| 159 // dlclose libthread_db.so | |
| 160 void* libthread_db_handle = (void*) env->GetLongField(this_obj, libthread_db_handle_ID); | |
| 161 if (libthread_db_handle != 0) { | |
| 162 dlclose(libthread_db_handle); | |
| 163 } | |
| 164 | |
| 165 env->SetLongField(this_obj, libthread_db_handle_ID, (jlong)0); | |
| 166 env->SetLongField(this_obj, p_td_init_ID, (jlong)0); | |
| 167 env->SetLongField(this_obj, p_td_ta_new_ID, (jlong)0); | |
| 168 env->SetLongField(this_obj, p_td_ta_delete_ID, (jlong)0); | |
| 169 env->SetLongField(this_obj, p_td_ta_thr_iter_ID, (jlong)0); | |
| 170 env->SetLongField(this_obj, p_td_thr_get_info_ID, (jlong)0); | |
| 171 env->SetLongField(this_obj, p_td_ta_map_id2thr_ID, (jlong)0); | |
| 172 env->SetLongField(this_obj, p_td_thr_getgregs_ID, (jlong)0); | |
| 173 } | |
| 174 | |
| 175 | |
| 176 static void detach_internal(JNIEnv* env, jobject this_obj) { | |
| 177 // clear libthread_db stuff | |
| 178 clear_libthread_db_ptrs(env, this_obj); | |
| 179 | |
| 180 // release ptr to ps_prochandle | |
| 181 jlong p_ps_prochandle; | |
| 182 p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 183 if (p_ps_prochandle != 0L) { | |
| 184 Prelease((struct ps_prochandle*) p_ps_prochandle, PRELEASE_CLEAR); | |
| 185 } | |
| 186 | |
| 187 // part of the class sharing workaround | |
| 188 int classes_jsa_fd = env->GetIntField(this_obj, classes_jsa_fd_ID); | |
| 189 if (classes_jsa_fd != -1) { | |
| 190 close(classes_jsa_fd); | |
| 191 struct FileMapHeader* pheader = (struct FileMapHeader*) env->GetLongField(this_obj, p_file_map_header_ID); | |
| 192 if (pheader != NULL) { | |
| 193 free(pheader); | |
| 194 } | |
| 195 } | |
| 196 } | |
| 197 | |
| 198 // Is it okay to ignore libthread_db failure? Set env var to ignore | |
| 199 // libthread_db failure. You can still debug, but will miss threads | |
| 200 // related functionality. | |
| 201 static bool sa_ignore_threaddb = (getenv("SA_IGNORE_THREADDB") != 0); | |
| 202 | |
| 203 #define HANDLE_THREADDB_FAILURE(msg) \ | |
| 204 if (sa_ignore_threaddb) { \ | |
| 205 printf("libsaproc WARNING: %s\n", msg); \ | |
| 206 return; \ | |
| 207 } else { \ | |
| 208 THROW_NEW_DEBUGGER_EXCEPTION(msg); \ | |
| 209 } | |
| 210 | |
| 211 #define HANDLE_THREADDB_FAILURE_(msg, ret) \ | |
| 212 if (sa_ignore_threaddb) { \ | |
| 213 printf("libsaproc WARNING: %s\n", msg); \ | |
| 214 return ret; \ | |
| 215 } else { \ | |
| 216 THROW_NEW_DEBUGGER_EXCEPTION_(msg, ret); \ | |
| 217 } | |
| 218 | |
| 219 static const char * alt_root = NULL; | |
| 220 static int alt_root_len = -1; | |
| 221 | |
| 222 #define SA_ALTROOT "SA_ALTROOT" | |
| 223 | |
| 224 static void init_alt_root() { | |
| 225 if (alt_root_len == -1) { | |
| 226 alt_root = getenv(SA_ALTROOT); | |
| 227 if (alt_root) | |
| 228 alt_root_len = strlen(alt_root); | |
| 229 else | |
| 230 alt_root_len = 0; | |
| 231 } | |
| 232 } | |
| 233 | |
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234 // This function is a complete substitute for the open system call |
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235 // since it's also used to override open calls from libproc to |
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236 // implement as a pathmap style facility for the SA. If libproc |
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237 // starts using other interfaces then this might have to extended to |
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238 // cover other calls. |
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239 extern "C" int libsaproc_open(const char * name, int oflag, ...) { |
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240 if (oflag == O_RDONLY) { |
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241 init_alt_root(); |
| 0 | 242 |
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243 if (_libsaproc_debug) { |
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244 printf("libsaproc DEBUG: libsaproc_open %s\n", name); |
| 0 | 245 } |
| 246 | |
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247 if (alt_root_len > 0) { |
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248 int fd = -1; |
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249 char alt_path[PATH_MAX+1]; |
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250 |
| 0 | 251 strcpy(alt_path, alt_root); |
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252 strcat(alt_path, name); |
| 0 | 253 fd = open(alt_path, O_RDONLY); |
| 254 if (fd >= 0) { | |
| 255 if (_libsaproc_debug) { | |
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256 printf("libsaproc DEBUG: libsaproc_open substituted %s\n", alt_path); |
| 0 | 257 } |
| 258 return fd; | |
| 259 } | |
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260 |
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261 if (strrchr(name, '/')) { |
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262 strcpy(alt_path, alt_root); |
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263 strcat(alt_path, strrchr(name, '/')); |
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264 fd = open(alt_path, O_RDONLY); |
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265 if (fd >= 0) { |
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266 if (_libsaproc_debug) { |
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267 printf("libsaproc DEBUG: libsaproc_open substituted %s\n", alt_path); |
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268 } |
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269 return fd; |
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270 } |
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271 } |
| 0 | 272 } |
| 273 } | |
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274 |
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275 { |
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276 mode_t mode; |
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277 va_list ap; |
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278 va_start(ap, oflag); |
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279 mode = va_arg(ap, mode_t); |
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280 va_end(ap); |
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281 |
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282 return open(name, oflag, mode); |
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283 } |
| 0 | 284 } |
| 285 | |
| 286 | |
| 287 static void * pathmap_dlopen(const char * name, int mode) { | |
| 288 init_alt_root(); | |
| 289 | |
| 290 if (_libsaproc_debug) { | |
| 291 printf("libsaproc DEBUG: pathmap_dlopen %s\n", name); | |
| 292 } | |
| 293 | |
| 294 void * handle = NULL; | |
| 295 if (alt_root_len > 0) { | |
| 296 char alt_path[PATH_MAX+1]; | |
| 297 strcpy(alt_path, alt_root); | |
| 298 strcat(alt_path, name); | |
| 299 handle = dlopen(alt_path, mode); | |
| 300 if (_libsaproc_debug && handle) { | |
| 301 printf("libsaproc DEBUG: pathmap_dlopen substituted %s\n", alt_path); | |
| 302 } | |
| 303 | |
| 304 if (handle == NULL && strrchr(name, '/')) { | |
| 305 strcpy(alt_path, alt_root); | |
| 306 strcat(alt_path, strrchr(name, '/')); | |
| 307 handle = dlopen(alt_path, mode); | |
| 308 if (_libsaproc_debug && handle) { | |
| 309 printf("libsaproc DEBUG: pathmap_dlopen substituted %s\n", alt_path); | |
| 310 } | |
| 311 } | |
| 312 } | |
| 313 if (handle == NULL) { | |
| 314 handle = dlopen(name, mode); | |
| 315 } | |
| 316 if (_libsaproc_debug) { | |
| 317 printf("libsaproc DEBUG: pathmap_dlopen %s return 0x%x\n", name, handle); | |
| 318 } | |
| 319 return handle; | |
| 320 } | |
| 321 | |
| 322 // libproc and libthread_db callback functions | |
| 323 | |
| 324 extern "C" { | |
| 325 | |
| 326 static int | |
| 327 init_libthread_db_ptrs(void *cd, const prmap_t *pmp, const char *object_name) { | |
| 328 Debugger* dbg = (Debugger*) cd; | |
| 329 JNIEnv* env = dbg->env; | |
| 330 jobject this_obj = dbg->this_obj; | |
| 331 struct ps_prochandle* ph = (struct ps_prochandle*) env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 332 | |
| 333 char *s1 = 0, *s2 = 0; | |
| 334 char libthread_db[PATH_MAX]; | |
| 335 | |
| 336 if (strstr(object_name, "/libthread.so.") == NULL) | |
| 337 return (0); | |
| 338 | |
| 339 /* | |
| 340 * We found a libthread. | |
| 341 * dlopen() the matching libthread_db and get the thread agent handle. | |
| 342 */ | |
| 343 if (Pstatus(ph)->pr_dmodel == PR_MODEL_NATIVE) { | |
| 344 (void) strcpy(libthread_db, object_name); | |
| 345 s1 = (char*) strstr(object_name, ".so."); | |
| 346 s2 = (char*) strstr(libthread_db, ".so."); | |
| 347 (void) strcpy(s2, "_db"); | |
| 348 s2 += 3; | |
| 349 (void) strcpy(s2, s1); | |
| 350 } else { | |
| 351 #ifdef _LP64 | |
| 352 /* | |
| 353 * The victim process is 32-bit, we are 64-bit. | |
| 354 * We have to find the 64-bit version of libthread_db | |
| 355 * that matches the victim's 32-bit version of libthread. | |
| 356 */ | |
| 357 (void) strcpy(libthread_db, object_name); | |
| 358 s1 = (char*) strstr(object_name, "/libthread.so."); | |
| 359 s2 = (char*) strstr(libthread_db, "/libthread.so."); | |
| 360 (void) strcpy(s2, "/64"); | |
| 361 s2 += 3; | |
| 362 (void) strcpy(s2, s1); | |
| 363 s1 = (char*) strstr(s1, ".so."); | |
| 364 s2 = (char*) strstr(s2, ".so."); | |
| 365 (void) strcpy(s2, "_db"); | |
| 366 s2 += 3; | |
| 367 (void) strcpy(s2, s1); | |
| 368 #else | |
| 369 return (0); | |
| 370 #endif /* _LP64 */ | |
| 371 } | |
| 372 | |
| 373 void* libthread_db_handle = 0; | |
| 374 if ((libthread_db_handle = pathmap_dlopen(libthread_db, RTLD_LAZY|RTLD_LOCAL)) == NULL) { | |
| 375 char errMsg[PATH_MAX + 256]; | |
| 376 sprintf(errMsg, "Can't load %s!", libthread_db); | |
| 377 HANDLE_THREADDB_FAILURE_(errMsg, 0); | |
| 378 } | |
| 379 env->SetLongField(this_obj, libthread_db_handle_ID, (jlong)(uintptr_t)libthread_db_handle); | |
| 380 | |
| 381 void* tmpPtr = 0; | |
| 382 tmpPtr = dlsym(libthread_db_handle, "td_init"); | |
| 383 if (tmpPtr == 0) { | |
| 384 HANDLE_THREADDB_FAILURE_("dlsym failed on td_init!", 0); | |
| 385 } | |
| 386 env->SetLongField(this_obj, p_td_init_ID, (jlong)(uintptr_t) tmpPtr); | |
| 387 | |
| 388 tmpPtr =dlsym(libthread_db_handle, "td_ta_new"); | |
| 389 if (tmpPtr == 0) { | |
| 390 HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_new!", 0); | |
| 391 } | |
| 392 env->SetLongField(this_obj, p_td_ta_new_ID, (jlong)(uintptr_t) tmpPtr); | |
| 393 | |
| 394 tmpPtr = dlsym(libthread_db_handle, "td_ta_delete"); | |
| 395 if (tmpPtr == 0) { | |
| 396 HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_delete!", 0); | |
| 397 } | |
| 398 env->SetLongField(this_obj, p_td_ta_delete_ID, (jlong)(uintptr_t) tmpPtr); | |
| 399 | |
| 400 tmpPtr = dlsym(libthread_db_handle, "td_ta_thr_iter"); | |
| 401 if (tmpPtr == 0) { | |
| 402 HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_thr_iter!", 0); | |
| 403 } | |
| 404 env->SetLongField(this_obj, p_td_ta_thr_iter_ID, (jlong)(uintptr_t) tmpPtr); | |
| 405 | |
| 406 tmpPtr = dlsym(libthread_db_handle, "td_thr_get_info"); | |
| 407 if (tmpPtr == 0) { | |
| 408 HANDLE_THREADDB_FAILURE_("dlsym failed on td_thr_get_info!", 0); | |
| 409 } | |
| 410 env->SetLongField(this_obj, p_td_thr_get_info_ID, (jlong)(uintptr_t) tmpPtr); | |
| 411 | |
| 412 tmpPtr = dlsym(libthread_db_handle, "td_ta_map_id2thr"); | |
| 413 if (tmpPtr == 0) { | |
| 414 HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_map_id2thr!", 0); | |
| 415 } | |
| 416 env->SetLongField(this_obj, p_td_ta_map_id2thr_ID, (jlong)(uintptr_t) tmpPtr); | |
| 417 | |
| 418 tmpPtr = dlsym(libthread_db_handle, "td_thr_getgregs"); | |
| 419 if (tmpPtr == 0) { | |
| 420 HANDLE_THREADDB_FAILURE_("dlsym failed on td_thr_getgregs!", 0); | |
| 421 } | |
| 422 env->SetLongField(this_obj, p_td_thr_getgregs_ID, (jlong)(uintptr_t) tmpPtr); | |
| 423 | |
| 424 return 1; | |
| 425 } | |
| 426 | |
| 427 static int | |
| 428 fill_thread_list(const td_thrhandle_t *p_td_thragent_t, void* cd) { | |
| 429 DebuggerWithObject* dbgo = (DebuggerWithObject*) cd; | |
| 430 JNIEnv* env = dbgo->env; | |
| 431 jobject this_obj = dbgo->this_obj; | |
| 432 jobject list = dbgo->obj; | |
| 433 | |
| 434 td_thrinfo_t thrinfo; | |
| 435 p_td_thr_get_info_t p_td_thr_get_info = (p_td_thr_get_info_t) env->GetLongField(this_obj, p_td_thr_get_info_ID); | |
| 436 | |
| 437 if (p_td_thr_get_info(p_td_thragent_t, &thrinfo) != TD_OK) | |
| 438 return (0); | |
| 439 | |
| 440 jobject threadProxy = env->CallObjectMethod(this_obj, getThreadForThreadId_ID, (jlong)(uintptr_t) thrinfo.ti_tid); | |
| 441 CHECK_EXCEPTION_(1); | |
| 442 env->CallBooleanMethod(list, listAdd_ID, threadProxy); | |
| 443 CHECK_EXCEPTION_(1); | |
| 444 return 0; | |
| 445 } | |
| 446 | |
| 447 static int | |
| 448 fill_load_object_list(void *cd, const prmap_t* pmp, const char* obj_name) { | |
| 449 | |
| 450 if (obj_name) { | |
| 451 DebuggerWithObject* dbgo = (DebuggerWithObject*) cd; | |
| 452 JNIEnv* env = dbgo->env; | |
| 453 jobject this_obj = dbgo->this_obj; | |
| 454 jobject list = dbgo->obj; | |
| 455 | |
| 456 jstring objectName = env->NewStringUTF(obj_name); | |
| 457 CHECK_EXCEPTION_(1); | |
| 458 | |
| 459 jlong mapSize = (jlong) pmp->pr_size; | |
| 460 jobject sharedObject = env->CallObjectMethod(this_obj, createLoadObject_ID, | |
| 461 objectName, mapSize, (jlong)(uintptr_t)pmp->pr_vaddr); | |
| 462 CHECK_EXCEPTION_(1); | |
| 463 env->CallBooleanMethod(list, listAdd_ID, sharedObject); | |
| 464 CHECK_EXCEPTION_(1); | |
| 465 } | |
| 466 | |
| 467 return 0; | |
| 468 } | |
| 469 | |
|
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470 // Pstack_iter() proc_stack_f callback prior to Nevada-B159 |
| 0 | 471 static int |
| 472 fill_cframe_list(void *cd, const prgregset_t regs, uint_t argc, const long *argv) { | |
| 473 DebuggerWith2Objects* dbgo2 = (DebuggerWith2Objects*) cd; | |
| 474 JNIEnv* env = dbgo2->env; | |
| 475 jobject this_obj = dbgo2->this_obj; | |
| 476 jobject curFrame = dbgo2->obj2; | |
| 477 | |
| 478 jint pcRegIndex = env->GetIntField(this_obj, pcRegIndex_ID); | |
| 479 jint fpRegIndex = env->GetIntField(this_obj, fpRegIndex_ID); | |
| 480 | |
| 481 jlong pc = (jlong) (uintptr_t) regs[pcRegIndex]; | |
| 482 jlong fp = (jlong) (uintptr_t) regs[fpRegIndex]; | |
| 483 | |
| 484 dbgo2->obj2 = env->CallObjectMethod(this_obj, createSenderFrame_ID, | |
| 485 curFrame, pc, fp); | |
| 486 CHECK_EXCEPTION_(1); | |
| 487 if (dbgo2->obj == 0) { | |
| 488 dbgo2->obj = dbgo2->obj2; | |
| 489 } | |
| 490 return 0; | |
| 491 } | |
| 492 | |
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493 // Pstack_iter() proc_stack_f callback in Nevada-B159 or later |
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494 /*ARGSUSED*/ |
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495 static int |
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496 wrapper_fill_cframe_list(void *cd, const prgregset_t regs, uint_t argc, |
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497 const long *argv, int frame_flags, int sig) { |
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498 return(fill_cframe_list(cd, regs, argc, argv)); |
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499 } |
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500 |
| 0 | 501 // part of the class sharing workaround |
| 502 | |
| 503 // FIXME: !!HACK ALERT!! | |
| 504 | |
| 505 // The format of sharing achive file header is needed to read shared heap | |
| 506 // file mappings. For now, I am hard coding portion of FileMapHeader here. | |
| 507 // Refer to filemap.hpp. | |
| 508 | |
| 509 // FileMapHeader describes the shared space data in the file to be | |
| 510 // mapped. This structure gets written to a file. It is not a class, so | |
| 511 // that the compilers don't add any compiler-private data to it. | |
| 512 | |
| 513 const int NUM_SHARED_MAPS = 4; | |
| 514 | |
| 515 // Refer to FileMapInfo::_current_version in filemap.hpp | |
| 516 const int CURRENT_ARCHIVE_VERSION = 1; | |
| 517 | |
| 518 struct FileMapHeader { | |
| 519 int _magic; // identify file type. | |
| 520 int _version; // (from enum, above.) | |
| 521 size_t _alignment; // how shared archive should be aligned | |
| 522 | |
| 523 | |
| 524 struct space_info { | |
| 525 int _file_offset; // sizeof(this) rounded to vm page size | |
| 526 char* _base; // copy-on-write base address | |
| 527 size_t _capacity; // for validity checking | |
| 528 size_t _used; // for setting space top on read | |
| 529 | |
| 530 bool _read_only; // read only space? | |
| 531 bool _allow_exec; // executable code in space? | |
| 532 | |
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533 } _space[NUM_SHARED_MAPS]; |
| 0 | 534 |
| 535 // Ignore the rest of the FileMapHeader. We don't need those fields here. | |
| 536 }; | |
| 537 | |
| 538 static bool | |
|
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539 read_jboolean(struct ps_prochandle* ph, psaddr_t addr, jboolean* pvalue) { |
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540 jboolean i; |
| 0 | 541 if (ps_pread(ph, addr, &i, sizeof(i)) == PS_OK) { |
| 542 *pvalue = i; | |
| 543 return true; | |
| 544 } else { | |
| 545 return false; | |
| 546 } | |
| 547 } | |
| 548 | |
| 549 static bool | |
| 550 read_pointer(struct ps_prochandle* ph, psaddr_t addr, uintptr_t* pvalue) { | |
| 551 uintptr_t uip; | |
| 552 if (ps_pread(ph, addr, &uip, sizeof(uip)) == PS_OK) { | |
| 553 *pvalue = uip; | |
| 554 return true; | |
| 555 } else { | |
| 556 return false; | |
| 557 } | |
| 558 } | |
| 559 | |
| 560 static bool | |
| 561 read_string(struct ps_prochandle* ph, psaddr_t addr, char* buf, size_t size) { | |
| 562 char ch = ' '; | |
| 563 size_t i = 0; | |
| 564 | |
| 565 while (ch != '\0') { | |
| 566 if (ps_pread(ph, addr, &ch, sizeof(ch)) != PS_OK) | |
| 567 return false; | |
| 568 | |
| 569 if (i < size - 1) { | |
| 570 buf[i] = ch; | |
| 571 } else { // smaller buffer | |
| 572 return false; | |
| 573 } | |
| 574 | |
| 575 i++; addr++; | |
| 576 } | |
| 577 | |
| 578 buf[i] = '\0'; | |
| 579 return true; | |
| 580 } | |
| 581 | |
| 582 #define USE_SHARED_SPACES_SYM "UseSharedSpaces" | |
| 583 // mangled symbol name for Arguments::SharedArchivePath | |
| 584 #define SHARED_ARCHIVE_PATH_SYM "__1cJArgumentsRSharedArchivePath_" | |
| 585 | |
| 586 static int | |
| 587 init_classsharing_workaround(void *cd, const prmap_t* pmap, const char* obj_name) { | |
| 588 Debugger* dbg = (Debugger*) cd; | |
| 589 JNIEnv* env = dbg->env; | |
| 590 jobject this_obj = dbg->this_obj; | |
| 591 const char* jvm_name = 0; | |
| 592 if ((jvm_name = strstr(obj_name, "libjvm.so")) != NULL || | |
| 593 (jvm_name = strstr(obj_name, "libjvm_g.so")) != NULL) { | |
| 594 jvm_name = obj_name; | |
| 595 } else { | |
| 596 return 0; | |
| 597 } | |
| 598 | |
| 599 struct ps_prochandle* ph = (struct ps_prochandle*) env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 600 | |
| 601 // initialize classes[_g].jsa file descriptor field. | |
| 602 dbg->env->SetIntField(this_obj, classes_jsa_fd_ID, -1); | |
| 603 | |
| 604 // check whether class sharing is on by reading variable "UseSharedSpaces" | |
| 605 psaddr_t useSharedSpacesAddr = 0; | |
| 606 ps_pglobal_lookup(ph, jvm_name, USE_SHARED_SPACES_SYM, &useSharedSpacesAddr); | |
| 607 if (useSharedSpacesAddr == 0) { | |
| 608 THROW_NEW_DEBUGGER_EXCEPTION_("can't find 'UseSharedSpaces' flag\n", 1); | |
| 609 } | |
| 610 | |
| 611 // read the value of the flag "UseSharedSpaces" | |
|
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612 // Since hotspot types are not available to build this library. So |
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613 // equivalent type "jboolean" is used to read the value of "UseSharedSpaces" |
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614 // which is same as hotspot type "bool". |
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615 jboolean value = 0; |
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616 if (read_jboolean(ph, useSharedSpacesAddr, &value) != true) { |
| 0 | 617 THROW_NEW_DEBUGGER_EXCEPTION_("can't read 'UseSharedSpaces' flag", 1); |
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618 } else if ((int)value == 0) { |
| 0 | 619 print_debug("UseSharedSpaces is false, assuming -Xshare:off!\n"); |
| 620 return 1; | |
| 621 } | |
| 622 | |
| 623 char classes_jsa[PATH_MAX]; | |
| 624 psaddr_t sharedArchivePathAddrAddr = 0; | |
| 625 ps_pglobal_lookup(ph, jvm_name, SHARED_ARCHIVE_PATH_SYM, &sharedArchivePathAddrAddr); | |
| 626 if (sharedArchivePathAddrAddr == 0) { | |
| 627 print_debug("can't find symbol 'Arguments::SharedArchivePath'\n"); | |
| 628 THROW_NEW_DEBUGGER_EXCEPTION_("can't get shared archive path from debuggee", 1); | |
| 629 } | |
| 630 | |
| 631 uintptr_t sharedArchivePathAddr = 0; | |
| 632 if (read_pointer(ph, sharedArchivePathAddrAddr, &sharedArchivePathAddr) != true) { | |
| 633 print_debug("can't find read pointer 'Arguments::SharedArchivePath'\n"); | |
| 634 THROW_NEW_DEBUGGER_EXCEPTION_("can't get shared archive path from debuggee", 1); | |
| 635 } | |
| 636 | |
| 637 if (read_string(ph, (psaddr_t)sharedArchivePathAddr, classes_jsa, sizeof(classes_jsa)) != true) { | |
| 638 print_debug("can't find read 'Arguments::SharedArchivePath' value\n"); | |
| 639 THROW_NEW_DEBUGGER_EXCEPTION_("can't get shared archive path from debuggee", 1); | |
| 640 } | |
| 641 | |
| 642 print_debug("looking for %s\n", classes_jsa); | |
| 643 | |
| 644 // open the classes[_g].jsa | |
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645 int fd = libsaproc_open(classes_jsa, O_RDONLY); |
| 0 | 646 if (fd < 0) { |
| 647 char errMsg[ERR_MSG_SIZE]; | |
| 648 sprintf(errMsg, "can't open shared archive file %s", classes_jsa); | |
| 649 THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1); | |
| 650 } else { | |
| 651 print_debug("opened shared archive file %s\n", classes_jsa); | |
| 652 } | |
| 653 | |
| 654 // parse classes[_g].jsa | |
| 655 struct FileMapHeader* pheader = (struct FileMapHeader*) malloc(sizeof(struct FileMapHeader)); | |
| 656 if (pheader == NULL) { | |
| 657 close(fd); | |
| 658 THROW_NEW_DEBUGGER_EXCEPTION_("can't allocate memory for shared file map header", 1); | |
| 659 } | |
| 660 | |
| 661 memset(pheader, 0, sizeof(struct FileMapHeader)); | |
| 662 // read FileMapHeader | |
| 663 size_t n = read(fd, pheader, sizeof(struct FileMapHeader)); | |
| 664 if (n != sizeof(struct FileMapHeader)) { | |
| 665 free(pheader); | |
| 666 close(fd); | |
| 667 char errMsg[ERR_MSG_SIZE]; | |
| 668 sprintf(errMsg, "unable to read shared archive file map header from %s", classes_jsa); | |
| 669 THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1); | |
| 670 } | |
| 671 | |
| 672 // check file magic | |
| 673 if (pheader->_magic != 0xf00baba2) { | |
| 674 free(pheader); | |
| 675 close(fd); | |
| 676 char errMsg[ERR_MSG_SIZE]; | |
| 677 sprintf(errMsg, "%s has bad shared archive magic 0x%x, expecting 0xf00baba2", | |
| 678 classes_jsa, pheader->_magic); | |
| 679 THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1); | |
| 680 } | |
| 681 | |
| 682 // check version | |
| 683 if (pheader->_version != CURRENT_ARCHIVE_VERSION) { | |
| 684 free(pheader); | |
| 685 close(fd); | |
| 686 char errMsg[ERR_MSG_SIZE]; | |
| 687 sprintf(errMsg, "%s has wrong shared archive version %d, expecting %d", | |
| 688 classes_jsa, pheader->_version, CURRENT_ARCHIVE_VERSION); | |
| 689 THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1); | |
| 690 } | |
| 691 | |
| 692 if (_libsaproc_debug) { | |
| 693 for (int m = 0; m < NUM_SHARED_MAPS; m++) { | |
| 694 print_debug("shared file offset %d mapped at 0x%lx, size = %ld, read only? = %d\n", | |
| 695 pheader->_space[m]._file_offset, pheader->_space[m]._base, | |
| 696 pheader->_space[m]._used, pheader->_space[m]._read_only); | |
| 697 } | |
| 698 } | |
| 699 | |
| 700 // FIXME: For now, omitting other checks such as VM version etc. | |
| 701 | |
| 702 // store class archive file fd and map header in debugger object fields | |
| 703 dbg->env->SetIntField(this_obj, classes_jsa_fd_ID, fd); | |
| 704 dbg->env->SetLongField(this_obj, p_file_map_header_ID, (jlong)(uintptr_t) pheader); | |
| 705 return 1; | |
| 706 } | |
| 707 | |
| 708 } // extern "C" | |
| 709 | |
| 710 // error messages for proc_arg_grab failure codes. The messages are | |
| 711 // modified versions of comments against corresponding #defines in | |
| 712 // libproc.h. | |
| 713 static const char* proc_arg_grab_errmsgs[] = { | |
| 714 "", | |
| 715 /* G_NOPROC */ "No such process", | |
| 716 /* G_NOCORE */ "No such core file", | |
| 717 /* G_NOPROCORCORE */ "No such process or core", | |
| 718 /* G_NOEXEC */ "Cannot locate executable file", | |
| 719 /* G_ZOMB */ "Zombie processs", | |
| 720 /* G_PERM */ "No permission to attach", | |
| 721 /* G_BUSY */ "Another process has already attached", | |
| 722 /* G_SYS */ "System process - can not attach", | |
| 723 /* G_SELF */ "Process is self - can't debug myself!", | |
| 724 /* G_INTR */ "Interrupt received while grabbing", | |
| 725 /* G_LP64 */ "debuggee is 64 bit, use java -d64 for debugger", | |
| 726 /* G_FORMAT */ "File is not an ELF format core file - corrupted core?", | |
| 727 /* G_ELF */ "Libelf error while parsing an ELF file", | |
| 728 /* G_NOTE */ "Required PT_NOTE Phdr not present - corrupted core?", | |
| 729 }; | |
| 730 | |
| 731 static void attach_internal(JNIEnv* env, jobject this_obj, jstring cmdLine, jboolean isProcess) { | |
| 732 jboolean isCopy; | |
| 733 int gcode; | |
| 734 const char* cmdLine_cstr = env->GetStringUTFChars(cmdLine, &isCopy); | |
| 735 CHECK_EXCEPTION; | |
| 736 | |
| 737 // some older versions of libproc.so crash when trying to attach 32 bit | |
| 738 // debugger to 64 bit core file. check and throw error. | |
| 739 #ifndef _LP64 | |
| 740 atoi(cmdLine_cstr); | |
| 741 if (errno) { | |
| 742 // core file | |
| 743 int core_fd; | |
| 744 if ((core_fd = open64(cmdLine_cstr, O_RDONLY)) >= 0) { | |
| 745 Elf32_Ehdr e32; | |
| 746 if (pread64(core_fd, &e32, sizeof (e32), 0) == sizeof (e32) && | |
| 747 memcmp(&e32.e_ident[EI_MAG0], ELFMAG, SELFMAG) == 0 && | |
| 748 e32.e_type == ET_CORE && e32.e_ident[EI_CLASS] == ELFCLASS64) { | |
| 749 close(core_fd); | |
| 750 THROW_NEW_DEBUGGER_EXCEPTION("debuggee is 64 bit, use java -d64 for debugger"); | |
| 751 } | |
| 752 close(core_fd); | |
| 753 } | |
| 754 // all other conditions are handled by libproc.so. | |
| 755 } | |
| 756 #endif | |
| 757 | |
| 758 // connect to process/core | |
| 759 struct ps_prochandle* ph = proc_arg_grab(cmdLine_cstr, (isProcess? PR_ARG_PIDS : PR_ARG_CORES), PGRAB_FORCE, &gcode); | |
| 760 env->ReleaseStringUTFChars(cmdLine, cmdLine_cstr); | |
| 761 if (! ph) { | |
| 762 if (gcode > 0 && gcode < sizeof(proc_arg_grab_errmsgs)/sizeof(const char*)) { | |
| 763 char errMsg[ERR_MSG_SIZE]; | |
| 764 sprintf(errMsg, "Attach failed : %s", proc_arg_grab_errmsgs[gcode]); | |
| 765 THROW_NEW_DEBUGGER_EXCEPTION(errMsg); | |
| 766 } else { | |
| 767 if (_libsaproc_debug && gcode == G_STRANGE) { | |
| 768 perror("libsaproc DEBUG: "); | |
| 769 } | |
| 770 if (isProcess) { | |
| 771 THROW_NEW_DEBUGGER_EXCEPTION("Not able to attach to process!"); | |
| 772 } else { | |
| 773 THROW_NEW_DEBUGGER_EXCEPTION("Not able to attach to core file!"); | |
| 774 } | |
| 775 } | |
| 776 } | |
| 777 | |
| 778 // even though libproc.so supports 64 bit debugger and 32 bit debuggee, we don't | |
| 779 // support such cross-bit-debugging. check for that combination and throw error. | |
| 780 #ifdef _LP64 | |
| 781 int data_model; | |
| 782 if (ps_pdmodel(ph, &data_model) != PS_OK) { | |
| 783 Prelease(ph, PRELEASE_CLEAR); | |
| 784 THROW_NEW_DEBUGGER_EXCEPTION("can't determine debuggee data model (ILP32? or LP64?)"); | |
| 785 } | |
| 786 if (data_model == PR_MODEL_ILP32) { | |
| 787 Prelease(ph, PRELEASE_CLEAR); | |
| 788 THROW_NEW_DEBUGGER_EXCEPTION("debuggee is 32 bit, use 32 bit java for debugger"); | |
| 789 } | |
| 790 #endif | |
| 791 | |
| 792 env->SetLongField(this_obj, p_ps_prochandle_ID, (jlong)(uintptr_t)ph); | |
| 793 | |
| 794 Debugger dbg; | |
| 795 dbg.env = env; | |
| 796 dbg.this_obj = this_obj; | |
| 797 jthrowable exception = 0; | |
| 798 if (! isProcess) { | |
| 799 /* | |
| 800 * With class sharing, shared perm. gen heap is allocated in with MAP_SHARED|PROT_READ. | |
| 801 * These pages are mapped from the file "classes[_g].jsa". MAP_SHARED pages are not dumped | |
| 802 * in Solaris core.To read shared heap pages, we have to read classes[_g].jsa file. | |
| 803 */ | |
| 804 Pobject_iter(ph, init_classsharing_workaround, &dbg); | |
| 805 exception = env->ExceptionOccurred(); | |
| 806 if (exception) { | |
| 807 env->ExceptionClear(); | |
| 808 detach_internal(env, this_obj); | |
| 809 env->Throw(exception); | |
| 810 return; | |
| 811 } | |
| 812 } | |
| 813 | |
| 814 /* | |
| 815 * Iterate over the process mappings looking | |
| 816 * for libthread and then dlopen the appropriate | |
| 817 * libthread_db and get function pointers. | |
| 818 */ | |
| 819 Pobject_iter(ph, init_libthread_db_ptrs, &dbg); | |
| 820 exception = env->ExceptionOccurred(); | |
| 821 if (exception) { | |
| 822 env->ExceptionClear(); | |
| 823 if (!sa_ignore_threaddb) { | |
| 824 detach_internal(env, this_obj); | |
| 825 env->Throw(exception); | |
| 826 } | |
| 827 return; | |
| 828 } | |
| 829 | |
| 830 // init libthread_db and create thread_db agent | |
| 831 p_td_init_t p_td_init = (p_td_init_t) env->GetLongField(this_obj, p_td_init_ID); | |
| 832 if (p_td_init == 0) { | |
| 833 if (!sa_ignore_threaddb) { | |
| 834 detach_internal(env, this_obj); | |
| 835 } | |
| 836 HANDLE_THREADDB_FAILURE("Did not find libthread in target process/core!"); | |
| 837 } | |
| 838 | |
| 839 if (p_td_init() != TD_OK) { | |
| 840 if (!sa_ignore_threaddb) { | |
| 841 detach_internal(env, this_obj); | |
| 842 } | |
| 843 HANDLE_THREADDB_FAILURE("Can't initialize thread_db!"); | |
| 844 } | |
| 845 | |
| 846 p_td_ta_new_t p_td_ta_new = (p_td_ta_new_t) env->GetLongField(this_obj, p_td_ta_new_ID); | |
| 847 | |
| 848 td_thragent_t *p_td_thragent_t = 0; | |
| 849 if (p_td_ta_new(ph, &p_td_thragent_t) != TD_OK) { | |
| 850 if (!sa_ignore_threaddb) { | |
| 851 detach_internal(env, this_obj); | |
| 852 } | |
| 853 HANDLE_THREADDB_FAILURE("Can't create thread_db agent!"); | |
| 854 } | |
| 855 env->SetLongField(this_obj, p_td_thragent_t_ID, (jlong)(uintptr_t) p_td_thragent_t); | |
| 856 | |
| 857 } | |
| 858 | |
| 859 /* | |
| 860 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 861 * Method: attach0 | |
| 862 * Signature: (Ljava/lang/String;)V | |
| 863 * Description: process detach | |
| 864 */ | |
| 865 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_attach0__Ljava_lang_String_2 | |
| 866 (JNIEnv *env, jobject this_obj, jstring pid) { | |
| 867 attach_internal(env, this_obj, pid, JNI_TRUE); | |
| 868 } | |
| 869 | |
| 870 /* | |
| 871 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 872 * Method: attach0 | |
| 873 * Signature: (Ljava/lang/String;Ljava/lang/String;)V | |
| 874 * Description: core file detach | |
| 875 */ | |
| 876 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2 | |
| 877 (JNIEnv *env, jobject this_obj, jstring executable, jstring corefile) { | |
| 878 // ignore executable file name, libproc.so can detect a.out name anyway. | |
| 879 attach_internal(env, this_obj, corefile, JNI_FALSE); | |
| 880 } | |
| 881 | |
| 882 | |
| 883 /* | |
| 884 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 885 * Method: detach0 | |
| 886 * Signature: ()V | |
| 887 * Description: process/core file detach | |
| 888 */ | |
| 889 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_detach0 | |
| 890 (JNIEnv *env, jobject this_obj) { | |
| 891 detach_internal(env, this_obj); | |
| 892 } | |
| 893 | |
| 894 /* | |
| 895 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 896 * Method: getRemoteProcessAddressSize0 | |
| 897 * Signature: ()I | |
| 898 * Description: get process/core address size | |
| 899 */ | |
| 900 JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_getRemoteProcessAddressSize0 | |
| 901 (JNIEnv *env, jobject this_obj) { | |
| 902 jlong p_ps_prochandle; | |
| 903 p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 904 int data_model = PR_MODEL_ILP32; | |
| 905 ps_pdmodel((struct ps_prochandle*) p_ps_prochandle, &data_model); | |
| 906 print_debug("debuggee is %d bit\n", data_model == PR_MODEL_ILP32? 32 : 64); | |
| 907 return (jint) data_model == PR_MODEL_ILP32? 32 : 64; | |
| 908 } | |
| 909 | |
| 910 /* | |
| 911 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 912 * Method: getPageSize0 | |
| 913 * Signature: ()I | |
| 914 * Description: get process/core page size | |
| 915 */ | |
| 916 JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_getPageSize0 | |
| 917 (JNIEnv *env, jobject this_obj) { | |
| 918 | |
| 919 /* | |
| 920 We are not yet attached to a java process or core file. getPageSize is called from | |
| 921 the constructor of ProcDebuggerLocal. The following won't work! | |
| 922 | |
| 923 jlong p_ps_prochandle; | |
| 924 p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 925 CHECK_EXCEPTION_(-1); | |
| 926 struct ps_prochandle* prochandle = (struct ps_prochandle*) p_ps_prochandle; | |
| 927 return (Pstate(prochandle) == PS_DEAD) ? Pgetauxval(prochandle, AT_PAGESZ) | |
| 928 : getpagesize(); | |
| 929 | |
| 930 So even though core may have been generated with a different page size settings, for now | |
| 931 call getpagesize. | |
| 932 */ | |
| 933 | |
| 934 return getpagesize(); | |
| 935 } | |
| 936 | |
| 937 /* | |
| 938 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 939 * Method: getThreadIntegerRegisterSet0 | |
| 940 * Signature: (J)[J | |
| 941 * Description: get gregset for a given thread specified by thread id | |
| 942 */ | |
| 943 JNIEXPORT jlongArray JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_getThreadIntegerRegisterSet0 | |
| 944 (JNIEnv *env, jobject this_obj, jlong tid) { | |
| 945 // map the thread id to thread handle | |
| 946 p_td_ta_map_id2thr_t p_td_ta_map_id2thr = (p_td_ta_map_id2thr_t) env->GetLongField(this_obj, p_td_ta_map_id2thr_ID); | |
| 947 | |
| 948 td_thragent_t* p_td_thragent_t = (td_thragent_t*) env->GetLongField(this_obj, p_td_thragent_t_ID); | |
| 949 if (p_td_thragent_t == 0) { | |
| 950 return 0; | |
| 951 } | |
| 952 | |
| 953 td_thrhandle_t thr_handle; | |
| 954 if (p_td_ta_map_id2thr(p_td_thragent_t, (thread_t) tid, &thr_handle) != TD_OK) { | |
| 955 THROW_NEW_DEBUGGER_EXCEPTION_("can't map thread id to thread handle!", 0); | |
| 956 } | |
| 957 | |
| 958 p_td_thr_getgregs_t p_td_thr_getgregs = (p_td_thr_getgregs_t) env->GetLongField(this_obj, p_td_thr_getgregs_ID); | |
| 959 prgregset_t gregs; | |
| 960 p_td_thr_getgregs(&thr_handle, gregs); | |
| 961 | |
| 962 jlongArray res = env->NewLongArray(NPRGREG); | |
| 963 CHECK_EXCEPTION_(0); | |
| 964 jboolean isCopy; | |
| 965 jlong* ptr = env->GetLongArrayElements(res, &isCopy); | |
| 966 for (int i = 0; i < NPRGREG; i++) { | |
| 967 ptr[i] = (jlong) (uintptr_t) gregs[i]; | |
| 968 } | |
| 969 env->ReleaseLongArrayElements(res, ptr, JNI_COMMIT); | |
| 970 return res; | |
| 971 } | |
| 972 | |
| 973 /* | |
| 974 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 975 * Method: fillThreadList0 | |
| 976 * Signature: (Ljava/util/List;)V | |
| 977 * Description: fills thread list of the debuggee process/core | |
| 978 */ | |
| 979 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_fillThreadList0 | |
| 980 (JNIEnv *env, jobject this_obj, jobject list) { | |
| 981 | |
| 982 td_thragent_t* p_td_thragent_t = (td_thragent_t*) env->GetLongField(this_obj, p_td_thragent_t_ID); | |
| 983 if (p_td_thragent_t == 0) { | |
| 984 return; | |
| 985 } | |
| 986 | |
| 987 p_td_ta_thr_iter_t p_td_ta_thr_iter = (p_td_ta_thr_iter_t) env->GetLongField(this_obj, p_td_ta_thr_iter_ID); | |
| 988 | |
| 989 DebuggerWithObject dbgo; | |
| 990 dbgo.env = env; | |
| 991 dbgo.this_obj = this_obj; | |
| 992 dbgo.obj = list; | |
| 993 | |
| 994 p_td_ta_thr_iter(p_td_thragent_t, fill_thread_list, &dbgo, | |
| 995 TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY, TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS); | |
| 996 } | |
| 997 | |
|
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998 #ifndef SOLARIS_11_B159_OR_LATER |
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999 // building on Nevada-B158 or earlier so more hoops to jump through |
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1000 static bool has_newer_Pstack_iter = false; // older version by default |
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1001 #endif |
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1002 |
| 0 | 1003 /* |
| 1004 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 1005 * Method: fillCFrameList0 | |
| 1006 * Signature: ([J)Lsun/jvm/hotspot/debugger/proc/ProcCFrame; | |
| 1007 * Description: fills CFrame list for a given thread | |
| 1008 */ | |
| 1009 JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_fillCFrameList0 | |
| 1010 (JNIEnv *env, jobject this_obj, jlongArray regsArray) { | |
| 1011 jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 1012 | |
| 1013 DebuggerWith2Objects dbgo2; | |
| 1014 dbgo2.env = env; | |
| 1015 dbgo2.this_obj = this_obj; | |
| 1016 dbgo2.obj = NULL; | |
| 1017 dbgo2.obj2 = NULL; | |
| 1018 | |
| 1019 jboolean isCopy; | |
| 1020 jlong* ptr = env->GetLongArrayElements(regsArray, &isCopy); | |
| 1021 CHECK_EXCEPTION_(0); | |
| 1022 | |
| 1023 prgregset_t gregs; | |
| 1024 for (int i = 0; i < NPRGREG; i++) { | |
| 1025 gregs[i] = (uintptr_t) ptr[i]; | |
| 1026 } | |
| 1027 | |
| 1028 env->ReleaseLongArrayElements(regsArray, ptr, JNI_ABORT); | |
| 1029 CHECK_EXCEPTION_(0); | |
|
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1030 |
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1031 #ifdef SOLARIS_11_B159_OR_LATER |
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1032 // building on Nevada-B159 or later so use the new callback |
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1033 Pstack_iter((struct ps_prochandle*) p_ps_prochandle, gregs, |
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1034 wrapper_fill_cframe_list, &dbgo2); |
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1035 #else |
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1036 // building on Nevada-B158 or earlier so figure out which callback to use |
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1037 |
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1038 if (has_newer_Pstack_iter) { |
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1039 // Since we're building on Nevada-B158 or earlier, we have to |
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1040 // cast wrapper_fill_cframe_list to make the compiler happy. |
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1041 Pstack_iter((struct ps_prochandle*) p_ps_prochandle, gregs, |
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1042 (proc_stack_f *)wrapper_fill_cframe_list, &dbgo2); |
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1043 } else { |
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1044 Pstack_iter((struct ps_prochandle*) p_ps_prochandle, gregs, |
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1045 fill_cframe_list, &dbgo2); |
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1046 } |
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1047 #endif // SOLARIS_11_B159_OR_LATER |
| 0 | 1048 return dbgo2.obj; |
| 1049 } | |
| 1050 | |
| 1051 /* | |
| 1052 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 1053 * Method: fillLoadObjectList0 | |
| 1054 * Signature: (Ljava/util/List;)V | |
| 1055 * Description: fills shared objects of the debuggee process/core | |
| 1056 */ | |
| 1057 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_fillLoadObjectList0 | |
| 1058 (JNIEnv *env, jobject this_obj, jobject list) { | |
| 1059 DebuggerWithObject dbgo; | |
| 1060 dbgo.env = env; | |
| 1061 dbgo.this_obj = this_obj; | |
| 1062 dbgo.obj = list; | |
| 1063 | |
| 1064 jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 1065 Pobject_iter((struct ps_prochandle*) p_ps_prochandle, fill_load_object_list, &dbgo); | |
| 1066 } | |
| 1067 | |
| 1068 /* | |
| 1069 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 1070 * Method: readBytesFromProcess0 | |
| 1071 * Signature: (JJ)[B | |
| 1072 * Description: read bytes from debuggee process/core | |
| 1073 */ | |
| 1074 JNIEXPORT jbyteArray JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_readBytesFromProcess0 | |
| 1075 (JNIEnv *env, jobject this_obj, jlong address, jlong numBytes) { | |
| 1076 | |
| 1077 jbyteArray array = env->NewByteArray(numBytes); | |
| 1078 CHECK_EXCEPTION_(0); | |
| 1079 jboolean isCopy; | |
| 1080 jbyte* bufPtr = env->GetByteArrayElements(array, &isCopy); | |
| 1081 CHECK_EXCEPTION_(0); | |
| 1082 | |
| 1083 jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 1084 ps_err_e ret = ps_pread((struct ps_prochandle*) p_ps_prochandle, | |
| 1085 (psaddr_t)address, bufPtr, (size_t)numBytes); | |
| 1086 | |
| 1087 if (ret != PS_OK) { | |
| 1088 // part of the class sharing workaround. try shared heap area | |
| 1089 int classes_jsa_fd = env->GetIntField(this_obj, classes_jsa_fd_ID); | |
| 1090 if (classes_jsa_fd != -1 && address != (jlong)0) { | |
| 1091 print_debug("read failed at 0x%lx, attempting shared heap area\n", (long) address); | |
| 1092 | |
| 1093 struct FileMapHeader* pheader = (struct FileMapHeader*) env->GetLongField(this_obj, p_file_map_header_ID); | |
| 1094 // walk through the shared mappings -- we just have 4 of them. | |
| 1095 // so, linear walking is okay. | |
| 1096 for (int m = 0; m < NUM_SHARED_MAPS; m++) { | |
| 1097 | |
| 1098 // We can skip the non-read-only maps. These are mapped as MAP_PRIVATE | |
| 1099 // and hence will be read by libproc. Besides, the file copy may be | |
| 1100 // stale because the process might have modified those pages. | |
| 1101 if (pheader->_space[m]._read_only) { | |
| 1102 jlong baseAddress = (jlong) (uintptr_t) pheader->_space[m]._base; | |
| 1103 size_t usedSize = pheader->_space[m]._used; | |
| 1104 if (address >= baseAddress && address < (baseAddress + usedSize)) { | |
| 1105 // the given address falls in this shared heap area | |
| 1106 print_debug("found shared map at 0x%lx\n", (long) baseAddress); | |
| 1107 | |
| 1108 | |
| 1109 // If more data is asked than actually mapped from file, we need to zero fill | |
| 1110 // till the end-of-page boundary. But, java array new does that for us. we just | |
| 1111 // need to read as much as data available. | |
| 1112 | |
| 1113 #define MIN2(x, y) (((x) < (y))? (x) : (y)) | |
| 1114 | |
| 1115 jlong diff = address - baseAddress; | |
| 1116 jlong bytesToRead = MIN2(numBytes, usedSize - diff); | |
| 1117 off_t offset = pheader->_space[m]._file_offset + off_t(diff); | |
| 1118 ssize_t bytesRead = pread(classes_jsa_fd, bufPtr, bytesToRead, offset); | |
| 1119 if (bytesRead != bytesToRead) { | |
| 1120 env->ReleaseByteArrayElements(array, bufPtr, JNI_ABORT); | |
| 1121 print_debug("shared map read failed\n"); | |
| 1122 return jbyteArray(0); | |
| 1123 } else { | |
| 1124 print_debug("shared map read succeeded\n"); | |
| 1125 env->ReleaseByteArrayElements(array, bufPtr, 0); | |
| 1126 return array; | |
| 1127 } | |
| 1128 } // is in current map | |
| 1129 } // is read only map | |
| 1130 } // for shared maps | |
| 1131 } // classes_jsa_fd != -1 | |
| 1132 env->ReleaseByteArrayElements(array, bufPtr, JNI_ABORT); | |
| 1133 return jbyteArray(0); | |
| 1134 } else { | |
| 1135 env->ReleaseByteArrayElements(array, bufPtr, 0); | |
| 1136 return array; | |
| 1137 } | |
| 1138 } | |
| 1139 | |
| 1140 /* | |
| 1141 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 1142 * Method: writeBytesToProcess0 | |
| 1143 * Signature: (JJ[B)V | |
| 1144 * Description: write bytes into debugger process | |
| 1145 */ | |
| 1146 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_writeBytesToProcess0 | |
| 1147 (JNIEnv *env, jobject this_obj, jlong address, jlong numBytes, jbyteArray data) { | |
| 1148 jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 1149 jboolean isCopy; | |
| 1150 jbyte* ptr = env->GetByteArrayElements(data, &isCopy); | |
| 1151 CHECK_EXCEPTION; | |
| 1152 | |
| 1153 if (ps_pwrite((struct ps_prochandle*) p_ps_prochandle, address, ptr, numBytes) != PS_OK) { | |
| 1154 env->ReleaseByteArrayElements(data, ptr, JNI_ABORT); | |
| 1155 THROW_NEW_DEBUGGER_EXCEPTION("Process write failed!"); | |
| 1156 } | |
| 1157 | |
| 1158 env->ReleaseByteArrayElements(data, ptr, JNI_ABORT); | |
| 1159 } | |
| 1160 | |
| 1161 /* | |
| 1162 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 1163 * Method: suspend0 | |
| 1164 * Signature: ()V | |
| 1165 */ | |
| 1166 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_suspend0 | |
| 1167 (JNIEnv *env, jobject this_obj) { | |
| 1168 jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 1169 // for now don't check return value. revisit this again. | |
| 1170 Pstop((struct ps_prochandle*) p_ps_prochandle, 1000); | |
| 1171 } | |
| 1172 | |
| 1173 /* | |
| 1174 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 1175 * Method: resume0 | |
| 1176 * Signature: ()V | |
| 1177 */ | |
| 1178 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_resume0 | |
| 1179 (JNIEnv *env, jobject this_obj) { | |
| 1180 jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 1181 // for now don't check return value. revisit this again. | |
| 1182 Psetrun((struct ps_prochandle*) p_ps_prochandle, 0, PRCFAULT|PRSTOP); | |
| 1183 } | |
| 1184 | |
| 1185 /* | |
| 1186 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 1187 * Method: lookupByName0 | |
| 1188 * Signature: (Ljava/lang/String;Ljava/lang/String;)J | |
| 1189 * Description: symbol lookup by name | |
| 1190 */ | |
| 1191 JNIEXPORT jlong JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_lookupByName0 | |
| 1192 (JNIEnv *env, jobject this_obj, jstring objectName, jstring symbolName) { | |
| 1193 jlong p_ps_prochandle; | |
| 1194 p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 1195 | |
| 1196 jboolean isCopy; | |
| 1197 const char* objectName_cstr = NULL; | |
| 1198 if (objectName != NULL) { | |
| 1199 objectName_cstr = env->GetStringUTFChars(objectName, &isCopy); | |
| 1200 CHECK_EXCEPTION_(0); | |
| 1201 } else { | |
| 1202 objectName_cstr = PR_OBJ_EVERY; | |
| 1203 } | |
| 1204 | |
| 1205 const char* symbolName_cstr = env->GetStringUTFChars(symbolName, &isCopy); | |
| 1206 CHECK_EXCEPTION_(0); | |
| 1207 | |
| 1208 psaddr_t symbol_addr = (psaddr_t) 0; | |
| 1209 ps_pglobal_lookup((struct ps_prochandle*) p_ps_prochandle, objectName_cstr, | |
| 1210 symbolName_cstr, &symbol_addr); | |
| 1211 | |
| 1212 if (symbol_addr == 0) { | |
| 1213 print_debug("lookup for %s in %s failed\n", symbolName_cstr, objectName_cstr); | |
| 1214 } | |
| 1215 | |
| 1216 if (objectName_cstr != PR_OBJ_EVERY) { | |
| 1217 env->ReleaseStringUTFChars(objectName, objectName_cstr); | |
| 1218 } | |
| 1219 env->ReleaseStringUTFChars(symbolName, symbolName_cstr); | |
| 1220 return (jlong) (uintptr_t) symbol_addr; | |
| 1221 } | |
| 1222 | |
| 1223 /* | |
| 1224 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 1225 * Method: lookupByAddress0 | |
| 1226 * Signature: (J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol; | |
| 1227 * Description: lookup symbol name for a given address | |
| 1228 */ | |
| 1229 JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_lookupByAddress0 | |
| 1230 (JNIEnv *env, jobject this_obj, jlong address) { | |
| 1231 jlong p_ps_prochandle; | |
| 1232 p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); | |
| 1233 | |
| 1234 char nameBuf[SYMBOL_BUF_SIZE + 1]; | |
| 1235 GElf_Sym sym; | |
| 1236 int res = Plookup_by_addr((struct ps_prochandle*) p_ps_prochandle, (uintptr_t) address, | |
| 1237 nameBuf, sizeof(nameBuf), &sym); | |
| 1238 if (res != 0) { // failed | |
| 1239 return 0; | |
| 1240 } | |
| 1241 | |
| 1242 jstring resSym = env->NewStringUTF(nameBuf); | |
| 1243 CHECK_EXCEPTION_(0); | |
| 1244 | |
| 1245 return env->CallObjectMethod(this_obj, createClosestSymbol_ID, resSym, (address - sym.st_value)); | |
| 1246 } | |
| 1247 | |
| 1248 /* | |
| 1249 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 1250 * Method: demangle0 | |
| 1251 * Signature: (Ljava/lang/String;)Ljava/lang/String; | |
| 1252 */ | |
| 1253 JNIEXPORT jstring JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_demangle0 | |
| 1254 (JNIEnv *env, jobject this_object, jstring name) { | |
| 1255 jboolean isCopy; | |
| 1256 const char* ptr = env->GetStringUTFChars(name, &isCopy); | |
| 1257 char buf[2*SYMBOL_BUF_SIZE + 1]; | |
| 1258 jstring res = 0; | |
| 1259 if (cplus_demangle((char*) ptr, buf, sizeof(buf)) != DEMANGLE_ESPACE) { | |
| 1260 res = env->NewStringUTF(buf); | |
| 1261 } else { | |
| 1262 res = name; | |
| 1263 } | |
| 1264 env->ReleaseStringUTFChars(name, ptr); | |
| 1265 return res; | |
| 1266 } | |
| 1267 | |
|
3306
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1268 #ifndef SOLARIS_11_B159_OR_LATER |
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1269 // Determine if the OS we're running on has the newer version |
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1270 // of libproc's Pstack_iter. |
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1271 // |
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1272 // Set env var PSTACK_ITER_DEBUG=true to debug this logic. |
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1273 // Set env var PSTACK_ITER_DEBUG_RELEASE to simulate a 'release' value. |
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1274 // Set env var PSTACK_ITER_DEBUG_VERSION to simulate a 'version' value. |
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1275 // |
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1276 // frankenputer 'uname -r -v': 5.10 Generic_141445-09 |
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1277 // jurassic 'uname -r -v': 5.11 snv_164 |
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1278 // lonepeak 'uname -r -v': 5.11 snv_127 |
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1279 // |
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1280 static void set_has_newer_Pstack_iter(JNIEnv *env) { |
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1281 static bool done_set = false; |
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1282 |
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1283 if (done_set) { |
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1284 // already set has_newer_Pstack_iter |
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1285 return; |
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1286 } |
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1287 |
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1288 struct utsname name; |
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1289 if (uname(&name) == -1) { |
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1290 THROW_NEW_DEBUGGER_EXCEPTION("uname() failed!"); |
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1291 } |
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1292 dprintf_2("release='%s' version='%s'\n", name.release, name.version); |
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1293 |
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1294 if (_Pstack_iter_debug) { |
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1295 char *override = getenv("PSTACK_ITER_DEBUG_RELEASE"); |
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1296 if (override != NULL) { |
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1297 strncpy(name.release, override, SYS_NMLN - 1); |
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1298 name.release[SYS_NMLN - 2] = '\0'; |
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1299 dprintf_2("overriding with release='%s'\n", name.release); |
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1300 } |
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1301 override = getenv("PSTACK_ITER_DEBUG_VERSION"); |
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1302 if (override != NULL) { |
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1303 strncpy(name.version, override, SYS_NMLN - 1); |
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1304 name.version[SYS_NMLN - 2] = '\0'; |
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1305 dprintf_2("overriding with version='%s'\n", name.version); |
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1306 } |
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1307 } |
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1308 |
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1309 // the major number corresponds to the old SunOS major number |
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1310 int major = atoi(name.release); |
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1311 if (major >= 6) { |
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1312 dprintf_2("release is SunOS 6 or later\n"); |
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1313 has_newer_Pstack_iter = true; |
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1314 done_set = true; |
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1315 return; |
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1316 } |
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1317 if (major < 5) { |
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1318 dprintf_2("release is SunOS 4 or earlier\n"); |
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1319 done_set = true; |
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1320 return; |
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1321 } |
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1322 |
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1323 // some SunOS 5.* build so now check for Solaris versions |
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1324 char *dot = strchr(name.release, '.'); |
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1325 int minor = 0; |
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1326 if (dot != NULL) { |
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1327 // release is major.minor format |
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1328 *dot = NULL; |
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1329 minor = atoi(dot + 1); |
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1330 } |
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1331 |
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1332 if (minor <= 10) { |
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1333 dprintf_2("release is Solaris 10 or earlier\n"); |
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1334 done_set = true; |
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1335 return; |
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1336 } else if (minor >= 12) { |
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1337 dprintf_2("release is Solaris 12 or later\n"); |
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1338 has_newer_Pstack_iter = true; |
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1339 done_set = true; |
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1340 return; |
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1341 } |
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1342 |
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1343 // some Solaris 11 build so now check for internal build numbers |
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1344 if (strncmp(name.version, "snv_", 4) != 0) { |
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1345 dprintf_2("release is Solaris 11 post-GA or later\n"); |
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1346 has_newer_Pstack_iter = true; |
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1347 done_set = true; |
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1348 return; |
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1349 } |
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1350 |
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1351 // version begins with "snv_" so a pre-GA build of Solaris 11 |
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1352 int build = atoi(&name.version[4]); |
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1353 if (build >= 159) { |
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1354 dprintf_2("release is Nevada-B159 or later\n"); |
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1355 has_newer_Pstack_iter = true; |
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1356 } else { |
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1357 dprintf_2("release is Nevada-B158 or earlier\n"); |
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1358 } |
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1359 |
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1360 done_set = true; |
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1361 } |
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1362 #endif // !SOLARIS_11_B159_OR_LATER |
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1363 |
| 0 | 1364 /* |
| 1365 * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal | |
| 1366 * Method: initIDs | |
| 1367 * Signature: ()V | |
| 1368 * Description: get JNI ids for fields and methods of ProcDebuggerLocal class | |
| 1369 */ | |
| 1370 JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_initIDs | |
| 1371 (JNIEnv *env, jclass clazz) { | |
| 1372 _libsaproc_debug = getenv("LIBSAPROC_DEBUG") != NULL; | |
| 1373 if (_libsaproc_debug) { | |
| 1374 // propagate debug mode to libproc.so | |
| 1375 static const char* var = "LIBPROC_DEBUG=1"; | |
| 1376 putenv((char*)var); | |
| 1377 } | |
| 1378 | |
| 1379 void* libproc_handle = dlopen("libproc.so", RTLD_LAZY | RTLD_GLOBAL); | |
| 1380 if (libproc_handle == 0) | |
| 1381 THROW_NEW_DEBUGGER_EXCEPTION("can't load libproc.so, if you are using Solaris 5.7 or below, copy libproc.so from 5.8!"); | |
| 1382 | |
|
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1383 #ifndef SOLARIS_11_B159_OR_LATER |
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1384 _Pstack_iter_debug = getenv("PSTACK_ITER_DEBUG") != NULL; |
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1385 |
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1386 set_has_newer_Pstack_iter(env); |
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1387 CHECK_EXCEPTION; |
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1388 dprintf_2("has_newer_Pstack_iter=%d\n", has_newer_Pstack_iter); |
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1389 #endif |
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1390 |
| 0 | 1391 p_ps_prochandle_ID = env->GetFieldID(clazz, "p_ps_prochandle", "J"); |
| 1392 CHECK_EXCEPTION; | |
| 1393 | |
| 1394 libthread_db_handle_ID = env->GetFieldID(clazz, "libthread_db_handle", "J"); | |
| 1395 CHECK_EXCEPTION; | |
| 1396 | |
| 1397 p_td_thragent_t_ID = env->GetFieldID(clazz, "p_td_thragent_t", "J"); | |
| 1398 CHECK_EXCEPTION; | |
| 1399 | |
| 1400 p_td_init_ID = env->GetFieldID(clazz, "p_td_init", "J"); | |
| 1401 CHECK_EXCEPTION; | |
| 1402 | |
| 1403 p_td_ta_new_ID = env->GetFieldID(clazz, "p_td_ta_new", "J"); | |
| 1404 CHECK_EXCEPTION; | |
| 1405 | |
| 1406 p_td_ta_delete_ID = env->GetFieldID(clazz, "p_td_ta_delete", "J"); | |
| 1407 CHECK_EXCEPTION; | |
| 1408 | |
| 1409 p_td_ta_thr_iter_ID = env->GetFieldID(clazz, "p_td_ta_thr_iter", "J"); | |
| 1410 CHECK_EXCEPTION; | |
| 1411 | |
| 1412 p_td_thr_get_info_ID = env->GetFieldID(clazz, "p_td_thr_get_info", "J"); | |
| 1413 CHECK_EXCEPTION; | |
| 1414 | |
| 1415 p_td_ta_map_id2thr_ID = env->GetFieldID(clazz, "p_td_ta_map_id2thr", "J"); | |
| 1416 CHECK_EXCEPTION; | |
| 1417 | |
| 1418 p_td_thr_getgregs_ID = env->GetFieldID(clazz, "p_td_thr_getgregs", "J"); | |
| 1419 CHECK_EXCEPTION; | |
| 1420 | |
| 1421 getThreadForThreadId_ID = env->GetMethodID(clazz, | |
| 1422 "getThreadForThreadId", "(J)Lsun/jvm/hotspot/debugger/ThreadProxy;"); | |
| 1423 CHECK_EXCEPTION; | |
| 1424 | |
| 1425 pcRegIndex_ID = env->GetFieldID(clazz, "pcRegIndex", "I"); | |
| 1426 CHECK_EXCEPTION; | |
| 1427 | |
| 1428 fpRegIndex_ID = env->GetFieldID(clazz, "fpRegIndex", "I"); | |
| 1429 CHECK_EXCEPTION; | |
| 1430 | |
| 1431 createSenderFrame_ID = env->GetMethodID(clazz, | |
| 1432 "createSenderFrame", "(Lsun/jvm/hotspot/debugger/proc/ProcCFrame;JJ)Lsun/jvm/hotspot/debugger/proc/ProcCFrame;"); | |
| 1433 CHECK_EXCEPTION; | |
| 1434 | |
| 1435 createLoadObject_ID = env->GetMethodID(clazz, | |
| 1436 "createLoadObject", "(Ljava/lang/String;JJ)Lsun/jvm/hotspot/debugger/cdbg/LoadObject;"); | |
| 1437 CHECK_EXCEPTION; | |
| 1438 | |
| 1439 createClosestSymbol_ID = env->GetMethodID(clazz, | |
| 1440 "createClosestSymbol", "(Ljava/lang/String;J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;"); | |
| 1441 CHECK_EXCEPTION; | |
| 1442 | |
| 1443 listAdd_ID = env->GetMethodID(env->FindClass("java/util/List"), "add", "(Ljava/lang/Object;)Z"); | |
| 1444 CHECK_EXCEPTION; | |
| 1445 | |
| 1446 // part of the class sharing workaround | |
| 1447 classes_jsa_fd_ID = env->GetFieldID(clazz, "classes_jsa_fd", "I"); | |
| 1448 CHECK_EXCEPTION; | |
| 1449 p_file_map_header_ID = env->GetFieldID(clazz, "p_file_map_header", "J"); | |
| 1450 CHECK_EXCEPTION; | |
| 1451 } |