Wed, 14 Jan 2009 19:45:01 -0800
6786948: SA on core file fails on solaris-amd64 if vm started with -XX:+StartAttachListener
Reviewed-by: jjh, dcubed
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 2002-2007 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | #include "salibproc.h" |
duke@435 | 26 | #include "sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal.h" |
duke@435 | 27 | #include <thread_db.h> |
duke@435 | 28 | #include <strings.h> |
duke@435 | 29 | #include <limits.h> |
duke@435 | 30 | #include <demangle.h> |
duke@435 | 31 | #include <stdarg.h> |
duke@435 | 32 | #include <stdlib.h> |
duke@435 | 33 | #include <errno.h> |
duke@435 | 34 | |
duke@435 | 35 | #define CHECK_EXCEPTION_(value) if(env->ExceptionOccurred()) { return value; } |
duke@435 | 36 | #define CHECK_EXCEPTION if(env->ExceptionOccurred()) { return;} |
duke@435 | 37 | #define THROW_NEW_DEBUGGER_EXCEPTION_(str, value) { throwNewDebuggerException(env, str); return value; } |
duke@435 | 38 | #define THROW_NEW_DEBUGGER_EXCEPTION(str) { throwNewDebuggerException(env, str); return;} |
duke@435 | 39 | |
duke@435 | 40 | #define SYMBOL_BUF_SIZE 256 |
duke@435 | 41 | #define ERR_MSG_SIZE (PATH_MAX + 256) |
duke@435 | 42 | |
duke@435 | 43 | // debug mode |
duke@435 | 44 | static int _libsaproc_debug = 0; |
duke@435 | 45 | |
duke@435 | 46 | static void print_debug(const char* format,...) { |
duke@435 | 47 | if (_libsaproc_debug) { |
duke@435 | 48 | va_list alist; |
duke@435 | 49 | |
duke@435 | 50 | va_start(alist, format); |
duke@435 | 51 | fputs("libsaproc DEBUG: ", stderr); |
duke@435 | 52 | vfprintf(stderr, format, alist); |
duke@435 | 53 | va_end(alist); |
duke@435 | 54 | } |
duke@435 | 55 | } |
duke@435 | 56 | |
duke@435 | 57 | struct Debugger { |
duke@435 | 58 | JNIEnv* env; |
duke@435 | 59 | jobject this_obj; |
duke@435 | 60 | }; |
duke@435 | 61 | |
duke@435 | 62 | struct DebuggerWithObject : Debugger { |
duke@435 | 63 | jobject obj; |
duke@435 | 64 | }; |
duke@435 | 65 | |
duke@435 | 66 | struct DebuggerWith2Objects : DebuggerWithObject { |
duke@435 | 67 | jobject obj2; |
duke@435 | 68 | }; |
duke@435 | 69 | |
duke@435 | 70 | /* |
duke@435 | 71 | * Portions of user thread level detail gathering code is from pstack source |
duke@435 | 72 | * code. See pstack.c in Solaris 2.8 user commands source code. |
duke@435 | 73 | */ |
duke@435 | 74 | |
duke@435 | 75 | static void throwNewDebuggerException(JNIEnv* env, const char* errMsg) { |
duke@435 | 76 | env->ThrowNew(env->FindClass("sun/jvm/hotspot/debugger/DebuggerException"), errMsg); |
duke@435 | 77 | } |
duke@435 | 78 | |
duke@435 | 79 | // JNI ids for some fields, methods |
duke@435 | 80 | |
duke@435 | 81 | // libproc handler pointer |
duke@435 | 82 | static jfieldID p_ps_prochandle_ID = 0; |
duke@435 | 83 | |
duke@435 | 84 | // libthread.so dlopen handle, thread agent ptr and function pointers |
duke@435 | 85 | static jfieldID libthread_db_handle_ID = 0; |
duke@435 | 86 | static jfieldID p_td_thragent_t_ID = 0; |
duke@435 | 87 | static jfieldID p_td_init_ID = 0; |
duke@435 | 88 | static jfieldID p_td_ta_new_ID = 0; |
duke@435 | 89 | static jfieldID p_td_ta_delete_ID = 0; |
duke@435 | 90 | static jfieldID p_td_ta_thr_iter_ID = 0; |
duke@435 | 91 | static jfieldID p_td_thr_get_info_ID = 0; |
duke@435 | 92 | static jfieldID p_td_ta_map_id2thr_ID = 0; |
duke@435 | 93 | static jfieldID p_td_thr_getgregs_ID = 0; |
duke@435 | 94 | |
duke@435 | 95 | // reg index fields |
duke@435 | 96 | static jfieldID pcRegIndex_ID = 0; |
duke@435 | 97 | static jfieldID fpRegIndex_ID = 0; |
duke@435 | 98 | |
duke@435 | 99 | // part of the class sharing workaround |
duke@435 | 100 | static jfieldID classes_jsa_fd_ID = 0; |
duke@435 | 101 | static jfieldID p_file_map_header_ID = 0; |
duke@435 | 102 | |
duke@435 | 103 | // method ids |
duke@435 | 104 | |
duke@435 | 105 | static jmethodID getThreadForThreadId_ID = 0; |
duke@435 | 106 | static jmethodID createSenderFrame_ID = 0; |
duke@435 | 107 | static jmethodID createLoadObject_ID = 0; |
duke@435 | 108 | static jmethodID createClosestSymbol_ID = 0; |
duke@435 | 109 | static jmethodID listAdd_ID = 0; |
duke@435 | 110 | |
duke@435 | 111 | /* |
duke@435 | 112 | * Functions we need from libthread_db |
duke@435 | 113 | */ |
duke@435 | 114 | typedef td_err_e |
duke@435 | 115 | (*p_td_init_t)(void); |
duke@435 | 116 | typedef td_err_e |
duke@435 | 117 | (*p_td_ta_new_t)(void *, td_thragent_t **); |
duke@435 | 118 | typedef td_err_e |
duke@435 | 119 | (*p_td_ta_delete_t)(td_thragent_t *); |
duke@435 | 120 | typedef td_err_e |
duke@435 | 121 | (*p_td_ta_thr_iter_t)(const td_thragent_t *, td_thr_iter_f *, void *, |
duke@435 | 122 | td_thr_state_e, int, sigset_t *, unsigned); |
duke@435 | 123 | typedef td_err_e |
duke@435 | 124 | (*p_td_thr_get_info_t)(const td_thrhandle_t *, td_thrinfo_t *); |
duke@435 | 125 | typedef td_err_e |
duke@435 | 126 | (*p_td_ta_map_id2thr_t)(const td_thragent_t *, thread_t, td_thrhandle_t *); |
duke@435 | 127 | typedef td_err_e |
duke@435 | 128 | (*p_td_thr_getgregs_t)(const td_thrhandle_t *, prgregset_t); |
duke@435 | 129 | |
duke@435 | 130 | static void |
duke@435 | 131 | clear_libthread_db_ptrs(JNIEnv* env, jobject this_obj) { |
duke@435 | 132 | // release libthread_db agent, if we had created |
duke@435 | 133 | p_td_ta_delete_t p_td_ta_delete = 0; |
duke@435 | 134 | p_td_ta_delete = (p_td_ta_delete_t) env->GetLongField(this_obj, p_td_ta_delete_ID); |
duke@435 | 135 | |
duke@435 | 136 | td_thragent_t *p_td_thragent_t = 0; |
duke@435 | 137 | p_td_thragent_t = (td_thragent_t*) env->GetLongField(this_obj, p_td_thragent_t_ID); |
duke@435 | 138 | if (p_td_thragent_t != 0 && p_td_ta_delete != 0) { |
duke@435 | 139 | p_td_ta_delete(p_td_thragent_t); |
duke@435 | 140 | } |
duke@435 | 141 | |
duke@435 | 142 | // dlclose libthread_db.so |
duke@435 | 143 | void* libthread_db_handle = (void*) env->GetLongField(this_obj, libthread_db_handle_ID); |
duke@435 | 144 | if (libthread_db_handle != 0) { |
duke@435 | 145 | dlclose(libthread_db_handle); |
duke@435 | 146 | } |
duke@435 | 147 | |
duke@435 | 148 | env->SetLongField(this_obj, libthread_db_handle_ID, (jlong)0); |
duke@435 | 149 | env->SetLongField(this_obj, p_td_init_ID, (jlong)0); |
duke@435 | 150 | env->SetLongField(this_obj, p_td_ta_new_ID, (jlong)0); |
duke@435 | 151 | env->SetLongField(this_obj, p_td_ta_delete_ID, (jlong)0); |
duke@435 | 152 | env->SetLongField(this_obj, p_td_ta_thr_iter_ID, (jlong)0); |
duke@435 | 153 | env->SetLongField(this_obj, p_td_thr_get_info_ID, (jlong)0); |
duke@435 | 154 | env->SetLongField(this_obj, p_td_ta_map_id2thr_ID, (jlong)0); |
duke@435 | 155 | env->SetLongField(this_obj, p_td_thr_getgregs_ID, (jlong)0); |
duke@435 | 156 | } |
duke@435 | 157 | |
duke@435 | 158 | |
duke@435 | 159 | static void detach_internal(JNIEnv* env, jobject this_obj) { |
duke@435 | 160 | // clear libthread_db stuff |
duke@435 | 161 | clear_libthread_db_ptrs(env, this_obj); |
duke@435 | 162 | |
duke@435 | 163 | // release ptr to ps_prochandle |
duke@435 | 164 | jlong p_ps_prochandle; |
duke@435 | 165 | p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 166 | if (p_ps_prochandle != 0L) { |
duke@435 | 167 | Prelease((struct ps_prochandle*) p_ps_prochandle, PRELEASE_CLEAR); |
duke@435 | 168 | } |
duke@435 | 169 | |
duke@435 | 170 | // part of the class sharing workaround |
duke@435 | 171 | int classes_jsa_fd = env->GetIntField(this_obj, classes_jsa_fd_ID); |
duke@435 | 172 | if (classes_jsa_fd != -1) { |
duke@435 | 173 | close(classes_jsa_fd); |
duke@435 | 174 | struct FileMapHeader* pheader = (struct FileMapHeader*) env->GetLongField(this_obj, p_file_map_header_ID); |
duke@435 | 175 | if (pheader != NULL) { |
duke@435 | 176 | free(pheader); |
duke@435 | 177 | } |
duke@435 | 178 | } |
duke@435 | 179 | } |
duke@435 | 180 | |
duke@435 | 181 | // Is it okay to ignore libthread_db failure? Set env var to ignore |
duke@435 | 182 | // libthread_db failure. You can still debug, but will miss threads |
duke@435 | 183 | // related functionality. |
duke@435 | 184 | static bool sa_ignore_threaddb = (getenv("SA_IGNORE_THREADDB") != 0); |
duke@435 | 185 | |
duke@435 | 186 | #define HANDLE_THREADDB_FAILURE(msg) \ |
duke@435 | 187 | if (sa_ignore_threaddb) { \ |
duke@435 | 188 | printf("libsaproc WARNING: %s\n", msg); \ |
duke@435 | 189 | return; \ |
duke@435 | 190 | } else { \ |
duke@435 | 191 | THROW_NEW_DEBUGGER_EXCEPTION(msg); \ |
duke@435 | 192 | } |
duke@435 | 193 | |
duke@435 | 194 | #define HANDLE_THREADDB_FAILURE_(msg, ret) \ |
duke@435 | 195 | if (sa_ignore_threaddb) { \ |
duke@435 | 196 | printf("libsaproc WARNING: %s\n", msg); \ |
duke@435 | 197 | return ret; \ |
duke@435 | 198 | } else { \ |
duke@435 | 199 | THROW_NEW_DEBUGGER_EXCEPTION_(msg, ret); \ |
duke@435 | 200 | } |
duke@435 | 201 | |
duke@435 | 202 | static const char * alt_root = NULL; |
duke@435 | 203 | static int alt_root_len = -1; |
duke@435 | 204 | |
duke@435 | 205 | #define SA_ALTROOT "SA_ALTROOT" |
duke@435 | 206 | |
duke@435 | 207 | static void init_alt_root() { |
duke@435 | 208 | if (alt_root_len == -1) { |
duke@435 | 209 | alt_root = getenv(SA_ALTROOT); |
duke@435 | 210 | if (alt_root) |
duke@435 | 211 | alt_root_len = strlen(alt_root); |
duke@435 | 212 | else |
duke@435 | 213 | alt_root_len = 0; |
duke@435 | 214 | } |
duke@435 | 215 | } |
duke@435 | 216 | |
duke@435 | 217 | static int find_file_hook(const char * name, int elf_checksum) { |
duke@435 | 218 | init_alt_root(); |
duke@435 | 219 | |
duke@435 | 220 | if (_libsaproc_debug) { |
duke@435 | 221 | printf("libsaproc DEBUG: find_file_hook %s 0x%x\n", name, elf_checksum); |
duke@435 | 222 | } |
duke@435 | 223 | |
duke@435 | 224 | if (alt_root_len > 0) { |
duke@435 | 225 | int fd = -1; |
duke@435 | 226 | char alt_path[PATH_MAX+1]; |
duke@435 | 227 | |
duke@435 | 228 | strcpy(alt_path, alt_root); |
duke@435 | 229 | strcat(alt_path, name); |
duke@435 | 230 | fd = open(alt_path, O_RDONLY); |
duke@435 | 231 | if (fd >= 0) { |
duke@435 | 232 | if (_libsaproc_debug) { |
duke@435 | 233 | printf("libsaproc DEBUG: find_file_hook substituted %s\n", alt_path); |
duke@435 | 234 | } |
duke@435 | 235 | return fd; |
duke@435 | 236 | } |
duke@435 | 237 | |
duke@435 | 238 | if (strrchr(name, '/')) { |
duke@435 | 239 | strcpy(alt_path, alt_root); |
duke@435 | 240 | strcat(alt_path, strrchr(name, '/')); |
duke@435 | 241 | fd = open(alt_path, O_RDONLY); |
duke@435 | 242 | if (fd >= 0) { |
duke@435 | 243 | if (_libsaproc_debug) { |
duke@435 | 244 | printf("libsaproc DEBUG: find_file_hook substituted %s\n", alt_path); |
duke@435 | 245 | } |
duke@435 | 246 | return fd; |
duke@435 | 247 | } |
duke@435 | 248 | } |
duke@435 | 249 | } |
duke@435 | 250 | return -1; |
duke@435 | 251 | } |
duke@435 | 252 | |
duke@435 | 253 | static int pathmap_open(const char* name) { |
duke@435 | 254 | int fd = open(name, O_RDONLY); |
duke@435 | 255 | if (fd < 0) { |
duke@435 | 256 | fd = find_file_hook(name, 0); |
duke@435 | 257 | } |
duke@435 | 258 | return fd; |
duke@435 | 259 | } |
duke@435 | 260 | |
duke@435 | 261 | static void * pathmap_dlopen(const char * name, int mode) { |
duke@435 | 262 | init_alt_root(); |
duke@435 | 263 | |
duke@435 | 264 | if (_libsaproc_debug) { |
duke@435 | 265 | printf("libsaproc DEBUG: pathmap_dlopen %s\n", name); |
duke@435 | 266 | } |
duke@435 | 267 | |
duke@435 | 268 | void * handle = NULL; |
duke@435 | 269 | if (alt_root_len > 0) { |
duke@435 | 270 | char alt_path[PATH_MAX+1]; |
duke@435 | 271 | strcpy(alt_path, alt_root); |
duke@435 | 272 | strcat(alt_path, name); |
duke@435 | 273 | handle = dlopen(alt_path, mode); |
duke@435 | 274 | if (_libsaproc_debug && handle) { |
duke@435 | 275 | printf("libsaproc DEBUG: pathmap_dlopen substituted %s\n", alt_path); |
duke@435 | 276 | } |
duke@435 | 277 | |
duke@435 | 278 | if (handle == NULL && strrchr(name, '/')) { |
duke@435 | 279 | strcpy(alt_path, alt_root); |
duke@435 | 280 | strcat(alt_path, strrchr(name, '/')); |
duke@435 | 281 | handle = dlopen(alt_path, mode); |
duke@435 | 282 | if (_libsaproc_debug && handle) { |
duke@435 | 283 | printf("libsaproc DEBUG: pathmap_dlopen substituted %s\n", alt_path); |
duke@435 | 284 | } |
duke@435 | 285 | } |
duke@435 | 286 | } |
duke@435 | 287 | if (handle == NULL) { |
duke@435 | 288 | handle = dlopen(name, mode); |
duke@435 | 289 | } |
duke@435 | 290 | if (_libsaproc_debug) { |
duke@435 | 291 | printf("libsaproc DEBUG: pathmap_dlopen %s return 0x%x\n", name, handle); |
duke@435 | 292 | } |
duke@435 | 293 | return handle; |
duke@435 | 294 | } |
duke@435 | 295 | |
duke@435 | 296 | // libproc and libthread_db callback functions |
duke@435 | 297 | |
duke@435 | 298 | extern "C" { |
duke@435 | 299 | |
duke@435 | 300 | static int |
duke@435 | 301 | init_libthread_db_ptrs(void *cd, const prmap_t *pmp, const char *object_name) { |
duke@435 | 302 | Debugger* dbg = (Debugger*) cd; |
duke@435 | 303 | JNIEnv* env = dbg->env; |
duke@435 | 304 | jobject this_obj = dbg->this_obj; |
duke@435 | 305 | struct ps_prochandle* ph = (struct ps_prochandle*) env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 306 | |
duke@435 | 307 | char *s1 = 0, *s2 = 0; |
duke@435 | 308 | char libthread_db[PATH_MAX]; |
duke@435 | 309 | |
duke@435 | 310 | if (strstr(object_name, "/libthread.so.") == NULL) |
duke@435 | 311 | return (0); |
duke@435 | 312 | |
duke@435 | 313 | /* |
duke@435 | 314 | * We found a libthread. |
duke@435 | 315 | * dlopen() the matching libthread_db and get the thread agent handle. |
duke@435 | 316 | */ |
duke@435 | 317 | if (Pstatus(ph)->pr_dmodel == PR_MODEL_NATIVE) { |
duke@435 | 318 | (void) strcpy(libthread_db, object_name); |
duke@435 | 319 | s1 = (char*) strstr(object_name, ".so."); |
duke@435 | 320 | s2 = (char*) strstr(libthread_db, ".so."); |
duke@435 | 321 | (void) strcpy(s2, "_db"); |
duke@435 | 322 | s2 += 3; |
duke@435 | 323 | (void) strcpy(s2, s1); |
duke@435 | 324 | } else { |
duke@435 | 325 | #ifdef _LP64 |
duke@435 | 326 | /* |
duke@435 | 327 | * The victim process is 32-bit, we are 64-bit. |
duke@435 | 328 | * We have to find the 64-bit version of libthread_db |
duke@435 | 329 | * that matches the victim's 32-bit version of libthread. |
duke@435 | 330 | */ |
duke@435 | 331 | (void) strcpy(libthread_db, object_name); |
duke@435 | 332 | s1 = (char*) strstr(object_name, "/libthread.so."); |
duke@435 | 333 | s2 = (char*) strstr(libthread_db, "/libthread.so."); |
duke@435 | 334 | (void) strcpy(s2, "/64"); |
duke@435 | 335 | s2 += 3; |
duke@435 | 336 | (void) strcpy(s2, s1); |
duke@435 | 337 | s1 = (char*) strstr(s1, ".so."); |
duke@435 | 338 | s2 = (char*) strstr(s2, ".so."); |
duke@435 | 339 | (void) strcpy(s2, "_db"); |
duke@435 | 340 | s2 += 3; |
duke@435 | 341 | (void) strcpy(s2, s1); |
duke@435 | 342 | #else |
duke@435 | 343 | return (0); |
duke@435 | 344 | #endif /* _LP64 */ |
duke@435 | 345 | } |
duke@435 | 346 | |
duke@435 | 347 | void* libthread_db_handle = 0; |
duke@435 | 348 | if ((libthread_db_handle = pathmap_dlopen(libthread_db, RTLD_LAZY|RTLD_LOCAL)) == NULL) { |
duke@435 | 349 | char errMsg[PATH_MAX + 256]; |
duke@435 | 350 | sprintf(errMsg, "Can't load %s!", libthread_db); |
duke@435 | 351 | HANDLE_THREADDB_FAILURE_(errMsg, 0); |
duke@435 | 352 | } |
duke@435 | 353 | env->SetLongField(this_obj, libthread_db_handle_ID, (jlong)(uintptr_t)libthread_db_handle); |
duke@435 | 354 | |
duke@435 | 355 | void* tmpPtr = 0; |
duke@435 | 356 | tmpPtr = dlsym(libthread_db_handle, "td_init"); |
duke@435 | 357 | if (tmpPtr == 0) { |
duke@435 | 358 | HANDLE_THREADDB_FAILURE_("dlsym failed on td_init!", 0); |
duke@435 | 359 | } |
duke@435 | 360 | env->SetLongField(this_obj, p_td_init_ID, (jlong)(uintptr_t) tmpPtr); |
duke@435 | 361 | |
duke@435 | 362 | tmpPtr =dlsym(libthread_db_handle, "td_ta_new"); |
duke@435 | 363 | if (tmpPtr == 0) { |
duke@435 | 364 | HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_new!", 0); |
duke@435 | 365 | } |
duke@435 | 366 | env->SetLongField(this_obj, p_td_ta_new_ID, (jlong)(uintptr_t) tmpPtr); |
duke@435 | 367 | |
duke@435 | 368 | tmpPtr = dlsym(libthread_db_handle, "td_ta_delete"); |
duke@435 | 369 | if (tmpPtr == 0) { |
duke@435 | 370 | HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_delete!", 0); |
duke@435 | 371 | } |
duke@435 | 372 | env->SetLongField(this_obj, p_td_ta_delete_ID, (jlong)(uintptr_t) tmpPtr); |
duke@435 | 373 | |
duke@435 | 374 | tmpPtr = dlsym(libthread_db_handle, "td_ta_thr_iter"); |
duke@435 | 375 | if (tmpPtr == 0) { |
duke@435 | 376 | HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_thr_iter!", 0); |
duke@435 | 377 | } |
duke@435 | 378 | env->SetLongField(this_obj, p_td_ta_thr_iter_ID, (jlong)(uintptr_t) tmpPtr); |
duke@435 | 379 | |
duke@435 | 380 | tmpPtr = dlsym(libthread_db_handle, "td_thr_get_info"); |
duke@435 | 381 | if (tmpPtr == 0) { |
duke@435 | 382 | HANDLE_THREADDB_FAILURE_("dlsym failed on td_thr_get_info!", 0); |
duke@435 | 383 | } |
duke@435 | 384 | env->SetLongField(this_obj, p_td_thr_get_info_ID, (jlong)(uintptr_t) tmpPtr); |
duke@435 | 385 | |
duke@435 | 386 | tmpPtr = dlsym(libthread_db_handle, "td_ta_map_id2thr"); |
duke@435 | 387 | if (tmpPtr == 0) { |
duke@435 | 388 | HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_map_id2thr!", 0); |
duke@435 | 389 | } |
duke@435 | 390 | env->SetLongField(this_obj, p_td_ta_map_id2thr_ID, (jlong)(uintptr_t) tmpPtr); |
duke@435 | 391 | |
duke@435 | 392 | tmpPtr = dlsym(libthread_db_handle, "td_thr_getgregs"); |
duke@435 | 393 | if (tmpPtr == 0) { |
duke@435 | 394 | HANDLE_THREADDB_FAILURE_("dlsym failed on td_thr_getgregs!", 0); |
duke@435 | 395 | } |
duke@435 | 396 | env->SetLongField(this_obj, p_td_thr_getgregs_ID, (jlong)(uintptr_t) tmpPtr); |
duke@435 | 397 | |
duke@435 | 398 | return 1; |
duke@435 | 399 | } |
duke@435 | 400 | |
duke@435 | 401 | static int |
duke@435 | 402 | fill_thread_list(const td_thrhandle_t *p_td_thragent_t, void* cd) { |
duke@435 | 403 | DebuggerWithObject* dbgo = (DebuggerWithObject*) cd; |
duke@435 | 404 | JNIEnv* env = dbgo->env; |
duke@435 | 405 | jobject this_obj = dbgo->this_obj; |
duke@435 | 406 | jobject list = dbgo->obj; |
duke@435 | 407 | |
duke@435 | 408 | td_thrinfo_t thrinfo; |
duke@435 | 409 | 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); |
duke@435 | 410 | |
duke@435 | 411 | if (p_td_thr_get_info(p_td_thragent_t, &thrinfo) != TD_OK) |
duke@435 | 412 | return (0); |
duke@435 | 413 | |
duke@435 | 414 | jobject threadProxy = env->CallObjectMethod(this_obj, getThreadForThreadId_ID, (jlong)(uintptr_t) thrinfo.ti_tid); |
duke@435 | 415 | CHECK_EXCEPTION_(1); |
duke@435 | 416 | env->CallBooleanMethod(list, listAdd_ID, threadProxy); |
duke@435 | 417 | CHECK_EXCEPTION_(1); |
duke@435 | 418 | return 0; |
duke@435 | 419 | } |
duke@435 | 420 | |
duke@435 | 421 | static int |
duke@435 | 422 | fill_load_object_list(void *cd, const prmap_t* pmp, const char* obj_name) { |
duke@435 | 423 | |
duke@435 | 424 | if (obj_name) { |
duke@435 | 425 | DebuggerWithObject* dbgo = (DebuggerWithObject*) cd; |
duke@435 | 426 | JNIEnv* env = dbgo->env; |
duke@435 | 427 | jobject this_obj = dbgo->this_obj; |
duke@435 | 428 | jobject list = dbgo->obj; |
duke@435 | 429 | |
duke@435 | 430 | jstring objectName = env->NewStringUTF(obj_name); |
duke@435 | 431 | CHECK_EXCEPTION_(1); |
duke@435 | 432 | |
duke@435 | 433 | jlong mapSize = (jlong) pmp->pr_size; |
duke@435 | 434 | jobject sharedObject = env->CallObjectMethod(this_obj, createLoadObject_ID, |
duke@435 | 435 | objectName, mapSize, (jlong)(uintptr_t)pmp->pr_vaddr); |
duke@435 | 436 | CHECK_EXCEPTION_(1); |
duke@435 | 437 | env->CallBooleanMethod(list, listAdd_ID, sharedObject); |
duke@435 | 438 | CHECK_EXCEPTION_(1); |
duke@435 | 439 | } |
duke@435 | 440 | |
duke@435 | 441 | return 0; |
duke@435 | 442 | } |
duke@435 | 443 | |
duke@435 | 444 | static int |
duke@435 | 445 | fill_cframe_list(void *cd, const prgregset_t regs, uint_t argc, const long *argv) { |
duke@435 | 446 | DebuggerWith2Objects* dbgo2 = (DebuggerWith2Objects*) cd; |
duke@435 | 447 | JNIEnv* env = dbgo2->env; |
duke@435 | 448 | jobject this_obj = dbgo2->this_obj; |
duke@435 | 449 | jobject curFrame = dbgo2->obj2; |
duke@435 | 450 | |
duke@435 | 451 | jint pcRegIndex = env->GetIntField(this_obj, pcRegIndex_ID); |
duke@435 | 452 | jint fpRegIndex = env->GetIntField(this_obj, fpRegIndex_ID); |
duke@435 | 453 | |
duke@435 | 454 | jlong pc = (jlong) (uintptr_t) regs[pcRegIndex]; |
duke@435 | 455 | jlong fp = (jlong) (uintptr_t) regs[fpRegIndex]; |
duke@435 | 456 | |
duke@435 | 457 | dbgo2->obj2 = env->CallObjectMethod(this_obj, createSenderFrame_ID, |
duke@435 | 458 | curFrame, pc, fp); |
duke@435 | 459 | CHECK_EXCEPTION_(1); |
duke@435 | 460 | if (dbgo2->obj == 0) { |
duke@435 | 461 | dbgo2->obj = dbgo2->obj2; |
duke@435 | 462 | } |
duke@435 | 463 | return 0; |
duke@435 | 464 | } |
duke@435 | 465 | |
duke@435 | 466 | // part of the class sharing workaround |
duke@435 | 467 | |
duke@435 | 468 | // FIXME: !!HACK ALERT!! |
duke@435 | 469 | |
duke@435 | 470 | // The format of sharing achive file header is needed to read shared heap |
duke@435 | 471 | // file mappings. For now, I am hard coding portion of FileMapHeader here. |
duke@435 | 472 | // Refer to filemap.hpp. |
duke@435 | 473 | |
duke@435 | 474 | // FileMapHeader describes the shared space data in the file to be |
duke@435 | 475 | // mapped. This structure gets written to a file. It is not a class, so |
duke@435 | 476 | // that the compilers don't add any compiler-private data to it. |
duke@435 | 477 | |
duke@435 | 478 | // Refer to CompactingPermGenGen::n_regions in compactingPermGenGen.hpp |
duke@435 | 479 | const int NUM_SHARED_MAPS = 4; |
duke@435 | 480 | |
duke@435 | 481 | // Refer to FileMapInfo::_current_version in filemap.hpp |
duke@435 | 482 | const int CURRENT_ARCHIVE_VERSION = 1; |
duke@435 | 483 | |
duke@435 | 484 | struct FileMapHeader { |
duke@435 | 485 | int _magic; // identify file type. |
duke@435 | 486 | int _version; // (from enum, above.) |
duke@435 | 487 | size_t _alignment; // how shared archive should be aligned |
duke@435 | 488 | |
duke@435 | 489 | |
duke@435 | 490 | struct space_info { |
duke@435 | 491 | int _file_offset; // sizeof(this) rounded to vm page size |
duke@435 | 492 | char* _base; // copy-on-write base address |
duke@435 | 493 | size_t _capacity; // for validity checking |
duke@435 | 494 | size_t _used; // for setting space top on read |
duke@435 | 495 | |
duke@435 | 496 | bool _read_only; // read only space? |
duke@435 | 497 | bool _allow_exec; // executable code in space? |
duke@435 | 498 | |
duke@435 | 499 | } _space[NUM_SHARED_MAPS]; // was _space[CompactingPermGenGen::n_regions]; |
duke@435 | 500 | |
duke@435 | 501 | // Ignore the rest of the FileMapHeader. We don't need those fields here. |
duke@435 | 502 | }; |
duke@435 | 503 | |
duke@435 | 504 | static bool |
swamyv@964 | 505 | read_jboolean(struct ps_prochandle* ph, psaddr_t addr, jboolean* pvalue) { |
swamyv@964 | 506 | jboolean i; |
duke@435 | 507 | if (ps_pread(ph, addr, &i, sizeof(i)) == PS_OK) { |
duke@435 | 508 | *pvalue = i; |
duke@435 | 509 | return true; |
duke@435 | 510 | } else { |
duke@435 | 511 | return false; |
duke@435 | 512 | } |
duke@435 | 513 | } |
duke@435 | 514 | |
duke@435 | 515 | static bool |
duke@435 | 516 | read_pointer(struct ps_prochandle* ph, psaddr_t addr, uintptr_t* pvalue) { |
duke@435 | 517 | uintptr_t uip; |
duke@435 | 518 | if (ps_pread(ph, addr, &uip, sizeof(uip)) == PS_OK) { |
duke@435 | 519 | *pvalue = uip; |
duke@435 | 520 | return true; |
duke@435 | 521 | } else { |
duke@435 | 522 | return false; |
duke@435 | 523 | } |
duke@435 | 524 | } |
duke@435 | 525 | |
duke@435 | 526 | static bool |
duke@435 | 527 | read_string(struct ps_prochandle* ph, psaddr_t addr, char* buf, size_t size) { |
duke@435 | 528 | char ch = ' '; |
duke@435 | 529 | size_t i = 0; |
duke@435 | 530 | |
duke@435 | 531 | while (ch != '\0') { |
duke@435 | 532 | if (ps_pread(ph, addr, &ch, sizeof(ch)) != PS_OK) |
duke@435 | 533 | return false; |
duke@435 | 534 | |
duke@435 | 535 | if (i < size - 1) { |
duke@435 | 536 | buf[i] = ch; |
duke@435 | 537 | } else { // smaller buffer |
duke@435 | 538 | return false; |
duke@435 | 539 | } |
duke@435 | 540 | |
duke@435 | 541 | i++; addr++; |
duke@435 | 542 | } |
duke@435 | 543 | |
duke@435 | 544 | buf[i] = '\0'; |
duke@435 | 545 | return true; |
duke@435 | 546 | } |
duke@435 | 547 | |
duke@435 | 548 | #define USE_SHARED_SPACES_SYM "UseSharedSpaces" |
duke@435 | 549 | // mangled symbol name for Arguments::SharedArchivePath |
duke@435 | 550 | #define SHARED_ARCHIVE_PATH_SYM "__1cJArgumentsRSharedArchivePath_" |
duke@435 | 551 | |
duke@435 | 552 | static int |
duke@435 | 553 | init_classsharing_workaround(void *cd, const prmap_t* pmap, const char* obj_name) { |
duke@435 | 554 | Debugger* dbg = (Debugger*) cd; |
duke@435 | 555 | JNIEnv* env = dbg->env; |
duke@435 | 556 | jobject this_obj = dbg->this_obj; |
duke@435 | 557 | const char* jvm_name = 0; |
duke@435 | 558 | if ((jvm_name = strstr(obj_name, "libjvm.so")) != NULL || |
duke@435 | 559 | (jvm_name = strstr(obj_name, "libjvm_g.so")) != NULL) { |
duke@435 | 560 | jvm_name = obj_name; |
duke@435 | 561 | } else { |
duke@435 | 562 | return 0; |
duke@435 | 563 | } |
duke@435 | 564 | |
duke@435 | 565 | struct ps_prochandle* ph = (struct ps_prochandle*) env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 566 | |
duke@435 | 567 | // initialize classes[_g].jsa file descriptor field. |
duke@435 | 568 | dbg->env->SetIntField(this_obj, classes_jsa_fd_ID, -1); |
duke@435 | 569 | |
duke@435 | 570 | // check whether class sharing is on by reading variable "UseSharedSpaces" |
duke@435 | 571 | psaddr_t useSharedSpacesAddr = 0; |
duke@435 | 572 | ps_pglobal_lookup(ph, jvm_name, USE_SHARED_SPACES_SYM, &useSharedSpacesAddr); |
duke@435 | 573 | if (useSharedSpacesAddr == 0) { |
duke@435 | 574 | THROW_NEW_DEBUGGER_EXCEPTION_("can't find 'UseSharedSpaces' flag\n", 1); |
duke@435 | 575 | } |
duke@435 | 576 | |
duke@435 | 577 | // read the value of the flag "UseSharedSpaces" |
swamyv@964 | 578 | // Since hotspot types are not available to build this library. So |
swamyv@964 | 579 | // equivalent type "jboolean" is used to read the value of "UseSharedSpaces" |
swamyv@964 | 580 | // which is same as hotspot type "bool". |
swamyv@964 | 581 | jboolean value = 0; |
swamyv@964 | 582 | if (read_jboolean(ph, useSharedSpacesAddr, &value) != true) { |
duke@435 | 583 | THROW_NEW_DEBUGGER_EXCEPTION_("can't read 'UseSharedSpaces' flag", 1); |
swamyv@964 | 584 | } else if ((int)value == 0) { |
duke@435 | 585 | print_debug("UseSharedSpaces is false, assuming -Xshare:off!\n"); |
duke@435 | 586 | return 1; |
duke@435 | 587 | } |
duke@435 | 588 | |
duke@435 | 589 | char classes_jsa[PATH_MAX]; |
duke@435 | 590 | psaddr_t sharedArchivePathAddrAddr = 0; |
duke@435 | 591 | ps_pglobal_lookup(ph, jvm_name, SHARED_ARCHIVE_PATH_SYM, &sharedArchivePathAddrAddr); |
duke@435 | 592 | if (sharedArchivePathAddrAddr == 0) { |
duke@435 | 593 | print_debug("can't find symbol 'Arguments::SharedArchivePath'\n"); |
duke@435 | 594 | THROW_NEW_DEBUGGER_EXCEPTION_("can't get shared archive path from debuggee", 1); |
duke@435 | 595 | } |
duke@435 | 596 | |
duke@435 | 597 | uintptr_t sharedArchivePathAddr = 0; |
duke@435 | 598 | if (read_pointer(ph, sharedArchivePathAddrAddr, &sharedArchivePathAddr) != true) { |
duke@435 | 599 | print_debug("can't find read pointer 'Arguments::SharedArchivePath'\n"); |
duke@435 | 600 | THROW_NEW_DEBUGGER_EXCEPTION_("can't get shared archive path from debuggee", 1); |
duke@435 | 601 | } |
duke@435 | 602 | |
duke@435 | 603 | if (read_string(ph, (psaddr_t)sharedArchivePathAddr, classes_jsa, sizeof(classes_jsa)) != true) { |
duke@435 | 604 | print_debug("can't find read 'Arguments::SharedArchivePath' value\n"); |
duke@435 | 605 | THROW_NEW_DEBUGGER_EXCEPTION_("can't get shared archive path from debuggee", 1); |
duke@435 | 606 | } |
duke@435 | 607 | |
duke@435 | 608 | print_debug("looking for %s\n", classes_jsa); |
duke@435 | 609 | |
duke@435 | 610 | // open the classes[_g].jsa |
duke@435 | 611 | int fd = pathmap_open(classes_jsa); |
duke@435 | 612 | if (fd < 0) { |
duke@435 | 613 | char errMsg[ERR_MSG_SIZE]; |
duke@435 | 614 | sprintf(errMsg, "can't open shared archive file %s", classes_jsa); |
duke@435 | 615 | THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1); |
duke@435 | 616 | } else { |
duke@435 | 617 | print_debug("opened shared archive file %s\n", classes_jsa); |
duke@435 | 618 | } |
duke@435 | 619 | |
duke@435 | 620 | // parse classes[_g].jsa |
duke@435 | 621 | struct FileMapHeader* pheader = (struct FileMapHeader*) malloc(sizeof(struct FileMapHeader)); |
duke@435 | 622 | if (pheader == NULL) { |
duke@435 | 623 | close(fd); |
duke@435 | 624 | THROW_NEW_DEBUGGER_EXCEPTION_("can't allocate memory for shared file map header", 1); |
duke@435 | 625 | } |
duke@435 | 626 | |
duke@435 | 627 | memset(pheader, 0, sizeof(struct FileMapHeader)); |
duke@435 | 628 | // read FileMapHeader |
duke@435 | 629 | size_t n = read(fd, pheader, sizeof(struct FileMapHeader)); |
duke@435 | 630 | if (n != sizeof(struct FileMapHeader)) { |
duke@435 | 631 | free(pheader); |
duke@435 | 632 | close(fd); |
duke@435 | 633 | char errMsg[ERR_MSG_SIZE]; |
duke@435 | 634 | sprintf(errMsg, "unable to read shared archive file map header from %s", classes_jsa); |
duke@435 | 635 | THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1); |
duke@435 | 636 | } |
duke@435 | 637 | |
duke@435 | 638 | // check file magic |
duke@435 | 639 | if (pheader->_magic != 0xf00baba2) { |
duke@435 | 640 | free(pheader); |
duke@435 | 641 | close(fd); |
duke@435 | 642 | char errMsg[ERR_MSG_SIZE]; |
duke@435 | 643 | sprintf(errMsg, "%s has bad shared archive magic 0x%x, expecting 0xf00baba2", |
duke@435 | 644 | classes_jsa, pheader->_magic); |
duke@435 | 645 | THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1); |
duke@435 | 646 | } |
duke@435 | 647 | |
duke@435 | 648 | // check version |
duke@435 | 649 | if (pheader->_version != CURRENT_ARCHIVE_VERSION) { |
duke@435 | 650 | free(pheader); |
duke@435 | 651 | close(fd); |
duke@435 | 652 | char errMsg[ERR_MSG_SIZE]; |
duke@435 | 653 | sprintf(errMsg, "%s has wrong shared archive version %d, expecting %d", |
duke@435 | 654 | classes_jsa, pheader->_version, CURRENT_ARCHIVE_VERSION); |
duke@435 | 655 | THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1); |
duke@435 | 656 | } |
duke@435 | 657 | |
duke@435 | 658 | if (_libsaproc_debug) { |
duke@435 | 659 | for (int m = 0; m < NUM_SHARED_MAPS; m++) { |
duke@435 | 660 | print_debug("shared file offset %d mapped at 0x%lx, size = %ld, read only? = %d\n", |
duke@435 | 661 | pheader->_space[m]._file_offset, pheader->_space[m]._base, |
duke@435 | 662 | pheader->_space[m]._used, pheader->_space[m]._read_only); |
duke@435 | 663 | } |
duke@435 | 664 | } |
duke@435 | 665 | |
duke@435 | 666 | // FIXME: For now, omitting other checks such as VM version etc. |
duke@435 | 667 | |
duke@435 | 668 | // store class archive file fd and map header in debugger object fields |
duke@435 | 669 | dbg->env->SetIntField(this_obj, classes_jsa_fd_ID, fd); |
duke@435 | 670 | dbg->env->SetLongField(this_obj, p_file_map_header_ID, (jlong)(uintptr_t) pheader); |
duke@435 | 671 | return 1; |
duke@435 | 672 | } |
duke@435 | 673 | |
duke@435 | 674 | } // extern "C" |
duke@435 | 675 | |
duke@435 | 676 | // error messages for proc_arg_grab failure codes. The messages are |
duke@435 | 677 | // modified versions of comments against corresponding #defines in |
duke@435 | 678 | // libproc.h. |
duke@435 | 679 | static const char* proc_arg_grab_errmsgs[] = { |
duke@435 | 680 | "", |
duke@435 | 681 | /* G_NOPROC */ "No such process", |
duke@435 | 682 | /* G_NOCORE */ "No such core file", |
duke@435 | 683 | /* G_NOPROCORCORE */ "No such process or core", |
duke@435 | 684 | /* G_NOEXEC */ "Cannot locate executable file", |
duke@435 | 685 | /* G_ZOMB */ "Zombie processs", |
duke@435 | 686 | /* G_PERM */ "No permission to attach", |
duke@435 | 687 | /* G_BUSY */ "Another process has already attached", |
duke@435 | 688 | /* G_SYS */ "System process - can not attach", |
duke@435 | 689 | /* G_SELF */ "Process is self - can't debug myself!", |
duke@435 | 690 | /* G_INTR */ "Interrupt received while grabbing", |
duke@435 | 691 | /* G_LP64 */ "debuggee is 64 bit, use java -d64 for debugger", |
duke@435 | 692 | /* G_FORMAT */ "File is not an ELF format core file - corrupted core?", |
duke@435 | 693 | /* G_ELF */ "Libelf error while parsing an ELF file", |
duke@435 | 694 | /* G_NOTE */ "Required PT_NOTE Phdr not present - corrupted core?", |
duke@435 | 695 | }; |
duke@435 | 696 | |
duke@435 | 697 | static void attach_internal(JNIEnv* env, jobject this_obj, jstring cmdLine, jboolean isProcess) { |
duke@435 | 698 | jboolean isCopy; |
duke@435 | 699 | int gcode; |
duke@435 | 700 | const char* cmdLine_cstr = env->GetStringUTFChars(cmdLine, &isCopy); |
duke@435 | 701 | CHECK_EXCEPTION; |
duke@435 | 702 | |
duke@435 | 703 | // some older versions of libproc.so crash when trying to attach 32 bit |
duke@435 | 704 | // debugger to 64 bit core file. check and throw error. |
duke@435 | 705 | #ifndef _LP64 |
duke@435 | 706 | atoi(cmdLine_cstr); |
duke@435 | 707 | if (errno) { |
duke@435 | 708 | // core file |
duke@435 | 709 | int core_fd; |
duke@435 | 710 | if ((core_fd = open64(cmdLine_cstr, O_RDONLY)) >= 0) { |
duke@435 | 711 | Elf32_Ehdr e32; |
duke@435 | 712 | if (pread64(core_fd, &e32, sizeof (e32), 0) == sizeof (e32) && |
duke@435 | 713 | memcmp(&e32.e_ident[EI_MAG0], ELFMAG, SELFMAG) == 0 && |
duke@435 | 714 | e32.e_type == ET_CORE && e32.e_ident[EI_CLASS] == ELFCLASS64) { |
duke@435 | 715 | close(core_fd); |
duke@435 | 716 | THROW_NEW_DEBUGGER_EXCEPTION("debuggee is 64 bit, use java -d64 for debugger"); |
duke@435 | 717 | } |
duke@435 | 718 | close(core_fd); |
duke@435 | 719 | } |
duke@435 | 720 | // all other conditions are handled by libproc.so. |
duke@435 | 721 | } |
duke@435 | 722 | #endif |
duke@435 | 723 | |
duke@435 | 724 | // connect to process/core |
duke@435 | 725 | struct ps_prochandle* ph = proc_arg_grab(cmdLine_cstr, (isProcess? PR_ARG_PIDS : PR_ARG_CORES), PGRAB_FORCE, &gcode); |
duke@435 | 726 | env->ReleaseStringUTFChars(cmdLine, cmdLine_cstr); |
duke@435 | 727 | if (! ph) { |
duke@435 | 728 | if (gcode > 0 && gcode < sizeof(proc_arg_grab_errmsgs)/sizeof(const char*)) { |
duke@435 | 729 | char errMsg[ERR_MSG_SIZE]; |
duke@435 | 730 | sprintf(errMsg, "Attach failed : %s", proc_arg_grab_errmsgs[gcode]); |
duke@435 | 731 | THROW_NEW_DEBUGGER_EXCEPTION(errMsg); |
duke@435 | 732 | } else { |
duke@435 | 733 | if (_libsaproc_debug && gcode == G_STRANGE) { |
duke@435 | 734 | perror("libsaproc DEBUG: "); |
duke@435 | 735 | } |
duke@435 | 736 | if (isProcess) { |
duke@435 | 737 | THROW_NEW_DEBUGGER_EXCEPTION("Not able to attach to process!"); |
duke@435 | 738 | } else { |
duke@435 | 739 | THROW_NEW_DEBUGGER_EXCEPTION("Not able to attach to core file!"); |
duke@435 | 740 | } |
duke@435 | 741 | } |
duke@435 | 742 | } |
duke@435 | 743 | |
duke@435 | 744 | // even though libproc.so supports 64 bit debugger and 32 bit debuggee, we don't |
duke@435 | 745 | // support such cross-bit-debugging. check for that combination and throw error. |
duke@435 | 746 | #ifdef _LP64 |
duke@435 | 747 | int data_model; |
duke@435 | 748 | if (ps_pdmodel(ph, &data_model) != PS_OK) { |
duke@435 | 749 | Prelease(ph, PRELEASE_CLEAR); |
duke@435 | 750 | THROW_NEW_DEBUGGER_EXCEPTION("can't determine debuggee data model (ILP32? or LP64?)"); |
duke@435 | 751 | } |
duke@435 | 752 | if (data_model == PR_MODEL_ILP32) { |
duke@435 | 753 | Prelease(ph, PRELEASE_CLEAR); |
duke@435 | 754 | THROW_NEW_DEBUGGER_EXCEPTION("debuggee is 32 bit, use 32 bit java for debugger"); |
duke@435 | 755 | } |
duke@435 | 756 | #endif |
duke@435 | 757 | |
duke@435 | 758 | env->SetLongField(this_obj, p_ps_prochandle_ID, (jlong)(uintptr_t)ph); |
duke@435 | 759 | |
duke@435 | 760 | Debugger dbg; |
duke@435 | 761 | dbg.env = env; |
duke@435 | 762 | dbg.this_obj = this_obj; |
duke@435 | 763 | jthrowable exception = 0; |
duke@435 | 764 | if (! isProcess) { |
duke@435 | 765 | /* |
duke@435 | 766 | * With class sharing, shared perm. gen heap is allocated in with MAP_SHARED|PROT_READ. |
duke@435 | 767 | * These pages are mapped from the file "classes[_g].jsa". MAP_SHARED pages are not dumped |
duke@435 | 768 | * in Solaris core.To read shared heap pages, we have to read classes[_g].jsa file. |
duke@435 | 769 | */ |
duke@435 | 770 | Pobject_iter(ph, init_classsharing_workaround, &dbg); |
duke@435 | 771 | exception = env->ExceptionOccurred(); |
duke@435 | 772 | if (exception) { |
duke@435 | 773 | env->ExceptionClear(); |
duke@435 | 774 | detach_internal(env, this_obj); |
duke@435 | 775 | env->Throw(exception); |
duke@435 | 776 | return; |
duke@435 | 777 | } |
duke@435 | 778 | } |
duke@435 | 779 | |
duke@435 | 780 | /* |
duke@435 | 781 | * Iterate over the process mappings looking |
duke@435 | 782 | * for libthread and then dlopen the appropriate |
duke@435 | 783 | * libthread_db and get function pointers. |
duke@435 | 784 | */ |
duke@435 | 785 | Pobject_iter(ph, init_libthread_db_ptrs, &dbg); |
duke@435 | 786 | exception = env->ExceptionOccurred(); |
duke@435 | 787 | if (exception) { |
duke@435 | 788 | env->ExceptionClear(); |
duke@435 | 789 | if (!sa_ignore_threaddb) { |
duke@435 | 790 | detach_internal(env, this_obj); |
duke@435 | 791 | env->Throw(exception); |
duke@435 | 792 | } |
duke@435 | 793 | return; |
duke@435 | 794 | } |
duke@435 | 795 | |
duke@435 | 796 | // init libthread_db and create thread_db agent |
duke@435 | 797 | p_td_init_t p_td_init = (p_td_init_t) env->GetLongField(this_obj, p_td_init_ID); |
duke@435 | 798 | if (p_td_init == 0) { |
duke@435 | 799 | if (!sa_ignore_threaddb) { |
duke@435 | 800 | detach_internal(env, this_obj); |
duke@435 | 801 | } |
duke@435 | 802 | HANDLE_THREADDB_FAILURE("Did not find libthread in target process/core!"); |
duke@435 | 803 | } |
duke@435 | 804 | |
duke@435 | 805 | if (p_td_init() != TD_OK) { |
duke@435 | 806 | if (!sa_ignore_threaddb) { |
duke@435 | 807 | detach_internal(env, this_obj); |
duke@435 | 808 | } |
duke@435 | 809 | HANDLE_THREADDB_FAILURE("Can't initialize thread_db!"); |
duke@435 | 810 | } |
duke@435 | 811 | |
duke@435 | 812 | p_td_ta_new_t p_td_ta_new = (p_td_ta_new_t) env->GetLongField(this_obj, p_td_ta_new_ID); |
duke@435 | 813 | |
duke@435 | 814 | td_thragent_t *p_td_thragent_t = 0; |
duke@435 | 815 | if (p_td_ta_new(ph, &p_td_thragent_t) != TD_OK) { |
duke@435 | 816 | if (!sa_ignore_threaddb) { |
duke@435 | 817 | detach_internal(env, this_obj); |
duke@435 | 818 | } |
duke@435 | 819 | HANDLE_THREADDB_FAILURE("Can't create thread_db agent!"); |
duke@435 | 820 | } |
duke@435 | 821 | env->SetLongField(this_obj, p_td_thragent_t_ID, (jlong)(uintptr_t) p_td_thragent_t); |
duke@435 | 822 | |
duke@435 | 823 | } |
duke@435 | 824 | |
duke@435 | 825 | /* |
duke@435 | 826 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 827 | * Method: attach0 |
duke@435 | 828 | * Signature: (Ljava/lang/String;)V |
duke@435 | 829 | * Description: process detach |
duke@435 | 830 | */ |
duke@435 | 831 | JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_attach0__Ljava_lang_String_2 |
duke@435 | 832 | (JNIEnv *env, jobject this_obj, jstring pid) { |
duke@435 | 833 | attach_internal(env, this_obj, pid, JNI_TRUE); |
duke@435 | 834 | } |
duke@435 | 835 | |
duke@435 | 836 | /* |
duke@435 | 837 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 838 | * Method: attach0 |
duke@435 | 839 | * Signature: (Ljava/lang/String;Ljava/lang/String;)V |
duke@435 | 840 | * Description: core file detach |
duke@435 | 841 | */ |
duke@435 | 842 | JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2 |
duke@435 | 843 | (JNIEnv *env, jobject this_obj, jstring executable, jstring corefile) { |
duke@435 | 844 | // ignore executable file name, libproc.so can detect a.out name anyway. |
duke@435 | 845 | attach_internal(env, this_obj, corefile, JNI_FALSE); |
duke@435 | 846 | } |
duke@435 | 847 | |
duke@435 | 848 | |
duke@435 | 849 | /* |
duke@435 | 850 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 851 | * Method: detach0 |
duke@435 | 852 | * Signature: ()V |
duke@435 | 853 | * Description: process/core file detach |
duke@435 | 854 | */ |
duke@435 | 855 | JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_detach0 |
duke@435 | 856 | (JNIEnv *env, jobject this_obj) { |
duke@435 | 857 | detach_internal(env, this_obj); |
duke@435 | 858 | } |
duke@435 | 859 | |
duke@435 | 860 | /* |
duke@435 | 861 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 862 | * Method: getRemoteProcessAddressSize0 |
duke@435 | 863 | * Signature: ()I |
duke@435 | 864 | * Description: get process/core address size |
duke@435 | 865 | */ |
duke@435 | 866 | JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_getRemoteProcessAddressSize0 |
duke@435 | 867 | (JNIEnv *env, jobject this_obj) { |
duke@435 | 868 | jlong p_ps_prochandle; |
duke@435 | 869 | p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 870 | int data_model = PR_MODEL_ILP32; |
duke@435 | 871 | ps_pdmodel((struct ps_prochandle*) p_ps_prochandle, &data_model); |
duke@435 | 872 | print_debug("debuggee is %d bit\n", data_model == PR_MODEL_ILP32? 32 : 64); |
duke@435 | 873 | return (jint) data_model == PR_MODEL_ILP32? 32 : 64; |
duke@435 | 874 | } |
duke@435 | 875 | |
duke@435 | 876 | /* |
duke@435 | 877 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 878 | * Method: getPageSize0 |
duke@435 | 879 | * Signature: ()I |
duke@435 | 880 | * Description: get process/core page size |
duke@435 | 881 | */ |
duke@435 | 882 | JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_getPageSize0 |
duke@435 | 883 | (JNIEnv *env, jobject this_obj) { |
duke@435 | 884 | |
duke@435 | 885 | /* |
duke@435 | 886 | We are not yet attached to a java process or core file. getPageSize is called from |
duke@435 | 887 | the constructor of ProcDebuggerLocal. The following won't work! |
duke@435 | 888 | |
duke@435 | 889 | jlong p_ps_prochandle; |
duke@435 | 890 | p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 891 | CHECK_EXCEPTION_(-1); |
duke@435 | 892 | struct ps_prochandle* prochandle = (struct ps_prochandle*) p_ps_prochandle; |
duke@435 | 893 | return (Pstate(prochandle) == PS_DEAD) ? Pgetauxval(prochandle, AT_PAGESZ) |
duke@435 | 894 | : getpagesize(); |
duke@435 | 895 | |
duke@435 | 896 | So even though core may have been generated with a different page size settings, for now |
duke@435 | 897 | call getpagesize. |
duke@435 | 898 | */ |
duke@435 | 899 | |
duke@435 | 900 | return getpagesize(); |
duke@435 | 901 | } |
duke@435 | 902 | |
duke@435 | 903 | /* |
duke@435 | 904 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 905 | * Method: getThreadIntegerRegisterSet0 |
duke@435 | 906 | * Signature: (J)[J |
duke@435 | 907 | * Description: get gregset for a given thread specified by thread id |
duke@435 | 908 | */ |
duke@435 | 909 | JNIEXPORT jlongArray JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_getThreadIntegerRegisterSet0 |
duke@435 | 910 | (JNIEnv *env, jobject this_obj, jlong tid) { |
duke@435 | 911 | // map the thread id to thread handle |
duke@435 | 912 | 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); |
duke@435 | 913 | |
duke@435 | 914 | td_thragent_t* p_td_thragent_t = (td_thragent_t*) env->GetLongField(this_obj, p_td_thragent_t_ID); |
duke@435 | 915 | if (p_td_thragent_t == 0) { |
duke@435 | 916 | return 0; |
duke@435 | 917 | } |
duke@435 | 918 | |
duke@435 | 919 | td_thrhandle_t thr_handle; |
duke@435 | 920 | if (p_td_ta_map_id2thr(p_td_thragent_t, (thread_t) tid, &thr_handle) != TD_OK) { |
duke@435 | 921 | THROW_NEW_DEBUGGER_EXCEPTION_("can't map thread id to thread handle!", 0); |
duke@435 | 922 | } |
duke@435 | 923 | |
duke@435 | 924 | p_td_thr_getgregs_t p_td_thr_getgregs = (p_td_thr_getgregs_t) env->GetLongField(this_obj, p_td_thr_getgregs_ID); |
duke@435 | 925 | prgregset_t gregs; |
duke@435 | 926 | p_td_thr_getgregs(&thr_handle, gregs); |
duke@435 | 927 | |
duke@435 | 928 | jlongArray res = env->NewLongArray(NPRGREG); |
duke@435 | 929 | CHECK_EXCEPTION_(0); |
duke@435 | 930 | jboolean isCopy; |
duke@435 | 931 | jlong* ptr = env->GetLongArrayElements(res, &isCopy); |
duke@435 | 932 | for (int i = 0; i < NPRGREG; i++) { |
duke@435 | 933 | ptr[i] = (jlong) (uintptr_t) gregs[i]; |
duke@435 | 934 | } |
duke@435 | 935 | env->ReleaseLongArrayElements(res, ptr, JNI_COMMIT); |
duke@435 | 936 | return res; |
duke@435 | 937 | } |
duke@435 | 938 | |
duke@435 | 939 | /* |
duke@435 | 940 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 941 | * Method: fillThreadList0 |
duke@435 | 942 | * Signature: (Ljava/util/List;)V |
duke@435 | 943 | * Description: fills thread list of the debuggee process/core |
duke@435 | 944 | */ |
duke@435 | 945 | JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_fillThreadList0 |
duke@435 | 946 | (JNIEnv *env, jobject this_obj, jobject list) { |
duke@435 | 947 | |
duke@435 | 948 | td_thragent_t* p_td_thragent_t = (td_thragent_t*) env->GetLongField(this_obj, p_td_thragent_t_ID); |
duke@435 | 949 | if (p_td_thragent_t == 0) { |
duke@435 | 950 | return; |
duke@435 | 951 | } |
duke@435 | 952 | |
duke@435 | 953 | 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); |
duke@435 | 954 | |
duke@435 | 955 | DebuggerWithObject dbgo; |
duke@435 | 956 | dbgo.env = env; |
duke@435 | 957 | dbgo.this_obj = this_obj; |
duke@435 | 958 | dbgo.obj = list; |
duke@435 | 959 | |
duke@435 | 960 | p_td_ta_thr_iter(p_td_thragent_t, fill_thread_list, &dbgo, |
duke@435 | 961 | TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY, TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS); |
duke@435 | 962 | } |
duke@435 | 963 | |
duke@435 | 964 | /* |
duke@435 | 965 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 966 | * Method: fillCFrameList0 |
duke@435 | 967 | * Signature: ([J)Lsun/jvm/hotspot/debugger/proc/ProcCFrame; |
duke@435 | 968 | * Description: fills CFrame list for a given thread |
duke@435 | 969 | */ |
duke@435 | 970 | JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_fillCFrameList0 |
duke@435 | 971 | (JNIEnv *env, jobject this_obj, jlongArray regsArray) { |
duke@435 | 972 | jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 973 | |
duke@435 | 974 | DebuggerWith2Objects dbgo2; |
duke@435 | 975 | dbgo2.env = env; |
duke@435 | 976 | dbgo2.this_obj = this_obj; |
duke@435 | 977 | dbgo2.obj = NULL; |
duke@435 | 978 | dbgo2.obj2 = NULL; |
duke@435 | 979 | |
duke@435 | 980 | jboolean isCopy; |
duke@435 | 981 | jlong* ptr = env->GetLongArrayElements(regsArray, &isCopy); |
duke@435 | 982 | CHECK_EXCEPTION_(0); |
duke@435 | 983 | |
duke@435 | 984 | prgregset_t gregs; |
duke@435 | 985 | for (int i = 0; i < NPRGREG; i++) { |
duke@435 | 986 | gregs[i] = (uintptr_t) ptr[i]; |
duke@435 | 987 | } |
duke@435 | 988 | |
duke@435 | 989 | env->ReleaseLongArrayElements(regsArray, ptr, JNI_ABORT); |
duke@435 | 990 | CHECK_EXCEPTION_(0); |
duke@435 | 991 | Pstack_iter((struct ps_prochandle*) p_ps_prochandle, gregs, fill_cframe_list, &dbgo2); |
duke@435 | 992 | return dbgo2.obj; |
duke@435 | 993 | } |
duke@435 | 994 | |
duke@435 | 995 | /* |
duke@435 | 996 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 997 | * Method: fillLoadObjectList0 |
duke@435 | 998 | * Signature: (Ljava/util/List;)V |
duke@435 | 999 | * Description: fills shared objects of the debuggee process/core |
duke@435 | 1000 | */ |
duke@435 | 1001 | JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_fillLoadObjectList0 |
duke@435 | 1002 | (JNIEnv *env, jobject this_obj, jobject list) { |
duke@435 | 1003 | DebuggerWithObject dbgo; |
duke@435 | 1004 | dbgo.env = env; |
duke@435 | 1005 | dbgo.this_obj = this_obj; |
duke@435 | 1006 | dbgo.obj = list; |
duke@435 | 1007 | |
duke@435 | 1008 | jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 1009 | Pobject_iter((struct ps_prochandle*) p_ps_prochandle, fill_load_object_list, &dbgo); |
duke@435 | 1010 | } |
duke@435 | 1011 | |
duke@435 | 1012 | /* |
duke@435 | 1013 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 1014 | * Method: readBytesFromProcess0 |
duke@435 | 1015 | * Signature: (JJ)[B |
duke@435 | 1016 | * Description: read bytes from debuggee process/core |
duke@435 | 1017 | */ |
duke@435 | 1018 | JNIEXPORT jbyteArray JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_readBytesFromProcess0 |
duke@435 | 1019 | (JNIEnv *env, jobject this_obj, jlong address, jlong numBytes) { |
duke@435 | 1020 | |
duke@435 | 1021 | jbyteArray array = env->NewByteArray(numBytes); |
duke@435 | 1022 | CHECK_EXCEPTION_(0); |
duke@435 | 1023 | jboolean isCopy; |
duke@435 | 1024 | jbyte* bufPtr = env->GetByteArrayElements(array, &isCopy); |
duke@435 | 1025 | CHECK_EXCEPTION_(0); |
duke@435 | 1026 | |
duke@435 | 1027 | jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 1028 | ps_err_e ret = ps_pread((struct ps_prochandle*) p_ps_prochandle, |
duke@435 | 1029 | (psaddr_t)address, bufPtr, (size_t)numBytes); |
duke@435 | 1030 | |
duke@435 | 1031 | if (ret != PS_OK) { |
duke@435 | 1032 | // part of the class sharing workaround. try shared heap area |
duke@435 | 1033 | int classes_jsa_fd = env->GetIntField(this_obj, classes_jsa_fd_ID); |
duke@435 | 1034 | if (classes_jsa_fd != -1 && address != (jlong)0) { |
duke@435 | 1035 | print_debug("read failed at 0x%lx, attempting shared heap area\n", (long) address); |
duke@435 | 1036 | |
duke@435 | 1037 | struct FileMapHeader* pheader = (struct FileMapHeader*) env->GetLongField(this_obj, p_file_map_header_ID); |
duke@435 | 1038 | // walk through the shared mappings -- we just have 4 of them. |
duke@435 | 1039 | // so, linear walking is okay. |
duke@435 | 1040 | for (int m = 0; m < NUM_SHARED_MAPS; m++) { |
duke@435 | 1041 | |
duke@435 | 1042 | // We can skip the non-read-only maps. These are mapped as MAP_PRIVATE |
duke@435 | 1043 | // and hence will be read by libproc. Besides, the file copy may be |
duke@435 | 1044 | // stale because the process might have modified those pages. |
duke@435 | 1045 | if (pheader->_space[m]._read_only) { |
duke@435 | 1046 | jlong baseAddress = (jlong) (uintptr_t) pheader->_space[m]._base; |
duke@435 | 1047 | size_t usedSize = pheader->_space[m]._used; |
duke@435 | 1048 | if (address >= baseAddress && address < (baseAddress + usedSize)) { |
duke@435 | 1049 | // the given address falls in this shared heap area |
duke@435 | 1050 | print_debug("found shared map at 0x%lx\n", (long) baseAddress); |
duke@435 | 1051 | |
duke@435 | 1052 | |
duke@435 | 1053 | // If more data is asked than actually mapped from file, we need to zero fill |
duke@435 | 1054 | // till the end-of-page boundary. But, java array new does that for us. we just |
duke@435 | 1055 | // need to read as much as data available. |
duke@435 | 1056 | |
duke@435 | 1057 | #define MIN2(x, y) (((x) < (y))? (x) : (y)) |
duke@435 | 1058 | |
duke@435 | 1059 | jlong diff = address - baseAddress; |
duke@435 | 1060 | jlong bytesToRead = MIN2(numBytes, usedSize - diff); |
duke@435 | 1061 | off_t offset = pheader->_space[m]._file_offset + off_t(diff); |
duke@435 | 1062 | ssize_t bytesRead = pread(classes_jsa_fd, bufPtr, bytesToRead, offset); |
duke@435 | 1063 | if (bytesRead != bytesToRead) { |
duke@435 | 1064 | env->ReleaseByteArrayElements(array, bufPtr, JNI_ABORT); |
duke@435 | 1065 | print_debug("shared map read failed\n"); |
duke@435 | 1066 | return jbyteArray(0); |
duke@435 | 1067 | } else { |
duke@435 | 1068 | print_debug("shared map read succeeded\n"); |
duke@435 | 1069 | env->ReleaseByteArrayElements(array, bufPtr, 0); |
duke@435 | 1070 | return array; |
duke@435 | 1071 | } |
duke@435 | 1072 | } // is in current map |
duke@435 | 1073 | } // is read only map |
duke@435 | 1074 | } // for shared maps |
duke@435 | 1075 | } // classes_jsa_fd != -1 |
duke@435 | 1076 | env->ReleaseByteArrayElements(array, bufPtr, JNI_ABORT); |
duke@435 | 1077 | return jbyteArray(0); |
duke@435 | 1078 | } else { |
duke@435 | 1079 | env->ReleaseByteArrayElements(array, bufPtr, 0); |
duke@435 | 1080 | return array; |
duke@435 | 1081 | } |
duke@435 | 1082 | } |
duke@435 | 1083 | |
duke@435 | 1084 | /* |
duke@435 | 1085 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 1086 | * Method: writeBytesToProcess0 |
duke@435 | 1087 | * Signature: (JJ[B)V |
duke@435 | 1088 | * Description: write bytes into debugger process |
duke@435 | 1089 | */ |
duke@435 | 1090 | JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_writeBytesToProcess0 |
duke@435 | 1091 | (JNIEnv *env, jobject this_obj, jlong address, jlong numBytes, jbyteArray data) { |
duke@435 | 1092 | jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 1093 | jboolean isCopy; |
duke@435 | 1094 | jbyte* ptr = env->GetByteArrayElements(data, &isCopy); |
duke@435 | 1095 | CHECK_EXCEPTION; |
duke@435 | 1096 | |
duke@435 | 1097 | if (ps_pwrite((struct ps_prochandle*) p_ps_prochandle, address, ptr, numBytes) != PS_OK) { |
duke@435 | 1098 | env->ReleaseByteArrayElements(data, ptr, JNI_ABORT); |
duke@435 | 1099 | THROW_NEW_DEBUGGER_EXCEPTION("Process write failed!"); |
duke@435 | 1100 | } |
duke@435 | 1101 | |
duke@435 | 1102 | env->ReleaseByteArrayElements(data, ptr, JNI_ABORT); |
duke@435 | 1103 | } |
duke@435 | 1104 | |
duke@435 | 1105 | /* |
duke@435 | 1106 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 1107 | * Method: suspend0 |
duke@435 | 1108 | * Signature: ()V |
duke@435 | 1109 | */ |
duke@435 | 1110 | JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_suspend0 |
duke@435 | 1111 | (JNIEnv *env, jobject this_obj) { |
duke@435 | 1112 | jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 1113 | // for now don't check return value. revisit this again. |
duke@435 | 1114 | Pstop((struct ps_prochandle*) p_ps_prochandle, 1000); |
duke@435 | 1115 | } |
duke@435 | 1116 | |
duke@435 | 1117 | /* |
duke@435 | 1118 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 1119 | * Method: resume0 |
duke@435 | 1120 | * Signature: ()V |
duke@435 | 1121 | */ |
duke@435 | 1122 | JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_resume0 |
duke@435 | 1123 | (JNIEnv *env, jobject this_obj) { |
duke@435 | 1124 | jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 1125 | // for now don't check return value. revisit this again. |
duke@435 | 1126 | Psetrun((struct ps_prochandle*) p_ps_prochandle, 0, PRCFAULT|PRSTOP); |
duke@435 | 1127 | } |
duke@435 | 1128 | |
duke@435 | 1129 | /* |
duke@435 | 1130 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 1131 | * Method: lookupByName0 |
duke@435 | 1132 | * Signature: (Ljava/lang/String;Ljava/lang/String;)J |
duke@435 | 1133 | * Description: symbol lookup by name |
duke@435 | 1134 | */ |
duke@435 | 1135 | JNIEXPORT jlong JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_lookupByName0 |
duke@435 | 1136 | (JNIEnv *env, jobject this_obj, jstring objectName, jstring symbolName) { |
duke@435 | 1137 | jlong p_ps_prochandle; |
duke@435 | 1138 | p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 1139 | |
duke@435 | 1140 | jboolean isCopy; |
duke@435 | 1141 | const char* objectName_cstr = NULL; |
duke@435 | 1142 | if (objectName != NULL) { |
duke@435 | 1143 | objectName_cstr = env->GetStringUTFChars(objectName, &isCopy); |
duke@435 | 1144 | CHECK_EXCEPTION_(0); |
duke@435 | 1145 | } else { |
duke@435 | 1146 | objectName_cstr = PR_OBJ_EVERY; |
duke@435 | 1147 | } |
duke@435 | 1148 | |
duke@435 | 1149 | const char* symbolName_cstr = env->GetStringUTFChars(symbolName, &isCopy); |
duke@435 | 1150 | CHECK_EXCEPTION_(0); |
duke@435 | 1151 | |
duke@435 | 1152 | psaddr_t symbol_addr = (psaddr_t) 0; |
duke@435 | 1153 | ps_pglobal_lookup((struct ps_prochandle*) p_ps_prochandle, objectName_cstr, |
duke@435 | 1154 | symbolName_cstr, &symbol_addr); |
duke@435 | 1155 | |
duke@435 | 1156 | if (symbol_addr == 0) { |
duke@435 | 1157 | print_debug("lookup for %s in %s failed\n", symbolName_cstr, objectName_cstr); |
duke@435 | 1158 | } |
duke@435 | 1159 | |
duke@435 | 1160 | if (objectName_cstr != PR_OBJ_EVERY) { |
duke@435 | 1161 | env->ReleaseStringUTFChars(objectName, objectName_cstr); |
duke@435 | 1162 | } |
duke@435 | 1163 | env->ReleaseStringUTFChars(symbolName, symbolName_cstr); |
duke@435 | 1164 | return (jlong) (uintptr_t) symbol_addr; |
duke@435 | 1165 | } |
duke@435 | 1166 | |
duke@435 | 1167 | /* |
duke@435 | 1168 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 1169 | * Method: lookupByAddress0 |
duke@435 | 1170 | * Signature: (J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol; |
duke@435 | 1171 | * Description: lookup symbol name for a given address |
duke@435 | 1172 | */ |
duke@435 | 1173 | JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_lookupByAddress0 |
duke@435 | 1174 | (JNIEnv *env, jobject this_obj, jlong address) { |
duke@435 | 1175 | jlong p_ps_prochandle; |
duke@435 | 1176 | p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID); |
duke@435 | 1177 | |
duke@435 | 1178 | char nameBuf[SYMBOL_BUF_SIZE + 1]; |
duke@435 | 1179 | GElf_Sym sym; |
duke@435 | 1180 | int res = Plookup_by_addr((struct ps_prochandle*) p_ps_prochandle, (uintptr_t) address, |
duke@435 | 1181 | nameBuf, sizeof(nameBuf), &sym); |
duke@435 | 1182 | if (res != 0) { // failed |
duke@435 | 1183 | return 0; |
duke@435 | 1184 | } |
duke@435 | 1185 | |
duke@435 | 1186 | jstring resSym = env->NewStringUTF(nameBuf); |
duke@435 | 1187 | CHECK_EXCEPTION_(0); |
duke@435 | 1188 | |
duke@435 | 1189 | return env->CallObjectMethod(this_obj, createClosestSymbol_ID, resSym, (address - sym.st_value)); |
duke@435 | 1190 | } |
duke@435 | 1191 | |
duke@435 | 1192 | /* |
duke@435 | 1193 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 1194 | * Method: demangle0 |
duke@435 | 1195 | * Signature: (Ljava/lang/String;)Ljava/lang/String; |
duke@435 | 1196 | */ |
duke@435 | 1197 | JNIEXPORT jstring JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_demangle0 |
duke@435 | 1198 | (JNIEnv *env, jobject this_object, jstring name) { |
duke@435 | 1199 | jboolean isCopy; |
duke@435 | 1200 | const char* ptr = env->GetStringUTFChars(name, &isCopy); |
duke@435 | 1201 | char buf[2*SYMBOL_BUF_SIZE + 1]; |
duke@435 | 1202 | jstring res = 0; |
duke@435 | 1203 | if (cplus_demangle((char*) ptr, buf, sizeof(buf)) != DEMANGLE_ESPACE) { |
duke@435 | 1204 | res = env->NewStringUTF(buf); |
duke@435 | 1205 | } else { |
duke@435 | 1206 | res = name; |
duke@435 | 1207 | } |
duke@435 | 1208 | env->ReleaseStringUTFChars(name, ptr); |
duke@435 | 1209 | return res; |
duke@435 | 1210 | } |
duke@435 | 1211 | |
duke@435 | 1212 | typedef int (*find_file_hook_t)(const char *, int elf_checksum); |
duke@435 | 1213 | |
duke@435 | 1214 | /* |
duke@435 | 1215 | * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal |
duke@435 | 1216 | * Method: initIDs |
duke@435 | 1217 | * Signature: ()V |
duke@435 | 1218 | * Description: get JNI ids for fields and methods of ProcDebuggerLocal class |
duke@435 | 1219 | */ |
duke@435 | 1220 | JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_initIDs |
duke@435 | 1221 | (JNIEnv *env, jclass clazz) { |
duke@435 | 1222 | _libsaproc_debug = getenv("LIBSAPROC_DEBUG") != NULL; |
duke@435 | 1223 | if (_libsaproc_debug) { |
duke@435 | 1224 | // propagate debug mode to libproc.so |
duke@435 | 1225 | static const char* var = "LIBPROC_DEBUG=1"; |
duke@435 | 1226 | putenv((char*)var); |
duke@435 | 1227 | } |
duke@435 | 1228 | |
duke@435 | 1229 | void* libproc_handle = dlopen("libproc.so", RTLD_LAZY | RTLD_GLOBAL); |
duke@435 | 1230 | if (libproc_handle == 0) |
duke@435 | 1231 | THROW_NEW_DEBUGGER_EXCEPTION("can't load libproc.so, if you are using Solaris 5.7 or below, copy libproc.so from 5.8!"); |
duke@435 | 1232 | |
duke@435 | 1233 | // If possible, set shared object find file hook. |
duke@435 | 1234 | void (*set_hook)(find_file_hook_t) = (void(*)(find_file_hook_t))dlsym(libproc_handle, "Pset_find_file_hook"); |
duke@435 | 1235 | if (set_hook) { |
duke@435 | 1236 | // we found find file hook symbol, set up our hook function. |
duke@435 | 1237 | set_hook(find_file_hook); |
duke@435 | 1238 | } else if (getenv(SA_ALTROOT)) { |
duke@435 | 1239 | printf("libsaproc WARNING: %s set, but can't set file hook. " \ |
duke@435 | 1240 | "Did you use right version of libproc.so?\n", SA_ALTROOT); |
duke@435 | 1241 | } |
duke@435 | 1242 | |
duke@435 | 1243 | p_ps_prochandle_ID = env->GetFieldID(clazz, "p_ps_prochandle", "J"); |
duke@435 | 1244 | CHECK_EXCEPTION; |
duke@435 | 1245 | |
duke@435 | 1246 | libthread_db_handle_ID = env->GetFieldID(clazz, "libthread_db_handle", "J"); |
duke@435 | 1247 | CHECK_EXCEPTION; |
duke@435 | 1248 | |
duke@435 | 1249 | p_td_thragent_t_ID = env->GetFieldID(clazz, "p_td_thragent_t", "J"); |
duke@435 | 1250 | CHECK_EXCEPTION; |
duke@435 | 1251 | |
duke@435 | 1252 | p_td_init_ID = env->GetFieldID(clazz, "p_td_init", "J"); |
duke@435 | 1253 | CHECK_EXCEPTION; |
duke@435 | 1254 | |
duke@435 | 1255 | p_td_ta_new_ID = env->GetFieldID(clazz, "p_td_ta_new", "J"); |
duke@435 | 1256 | CHECK_EXCEPTION; |
duke@435 | 1257 | |
duke@435 | 1258 | p_td_ta_delete_ID = env->GetFieldID(clazz, "p_td_ta_delete", "J"); |
duke@435 | 1259 | CHECK_EXCEPTION; |
duke@435 | 1260 | |
duke@435 | 1261 | p_td_ta_thr_iter_ID = env->GetFieldID(clazz, "p_td_ta_thr_iter", "J"); |
duke@435 | 1262 | CHECK_EXCEPTION; |
duke@435 | 1263 | |
duke@435 | 1264 | p_td_thr_get_info_ID = env->GetFieldID(clazz, "p_td_thr_get_info", "J"); |
duke@435 | 1265 | CHECK_EXCEPTION; |
duke@435 | 1266 | |
duke@435 | 1267 | p_td_ta_map_id2thr_ID = env->GetFieldID(clazz, "p_td_ta_map_id2thr", "J"); |
duke@435 | 1268 | CHECK_EXCEPTION; |
duke@435 | 1269 | |
duke@435 | 1270 | p_td_thr_getgregs_ID = env->GetFieldID(clazz, "p_td_thr_getgregs", "J"); |
duke@435 | 1271 | CHECK_EXCEPTION; |
duke@435 | 1272 | |
duke@435 | 1273 | getThreadForThreadId_ID = env->GetMethodID(clazz, |
duke@435 | 1274 | "getThreadForThreadId", "(J)Lsun/jvm/hotspot/debugger/ThreadProxy;"); |
duke@435 | 1275 | CHECK_EXCEPTION; |
duke@435 | 1276 | |
duke@435 | 1277 | pcRegIndex_ID = env->GetFieldID(clazz, "pcRegIndex", "I"); |
duke@435 | 1278 | CHECK_EXCEPTION; |
duke@435 | 1279 | |
duke@435 | 1280 | fpRegIndex_ID = env->GetFieldID(clazz, "fpRegIndex", "I"); |
duke@435 | 1281 | CHECK_EXCEPTION; |
duke@435 | 1282 | |
duke@435 | 1283 | createSenderFrame_ID = env->GetMethodID(clazz, |
duke@435 | 1284 | "createSenderFrame", "(Lsun/jvm/hotspot/debugger/proc/ProcCFrame;JJ)Lsun/jvm/hotspot/debugger/proc/ProcCFrame;"); |
duke@435 | 1285 | CHECK_EXCEPTION; |
duke@435 | 1286 | |
duke@435 | 1287 | createLoadObject_ID = env->GetMethodID(clazz, |
duke@435 | 1288 | "createLoadObject", "(Ljava/lang/String;JJ)Lsun/jvm/hotspot/debugger/cdbg/LoadObject;"); |
duke@435 | 1289 | CHECK_EXCEPTION; |
duke@435 | 1290 | |
duke@435 | 1291 | createClosestSymbol_ID = env->GetMethodID(clazz, |
duke@435 | 1292 | "createClosestSymbol", "(Ljava/lang/String;J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;"); |
duke@435 | 1293 | CHECK_EXCEPTION; |
duke@435 | 1294 | |
duke@435 | 1295 | listAdd_ID = env->GetMethodID(env->FindClass("java/util/List"), "add", "(Ljava/lang/Object;)Z"); |
duke@435 | 1296 | CHECK_EXCEPTION; |
duke@435 | 1297 | |
duke@435 | 1298 | // part of the class sharing workaround |
duke@435 | 1299 | classes_jsa_fd_ID = env->GetFieldID(clazz, "classes_jsa_fd", "I"); |
duke@435 | 1300 | CHECK_EXCEPTION; |
duke@435 | 1301 | p_file_map_header_ID = env->GetFieldID(clazz, "p_file_map_header", "J"); |
duke@435 | 1302 | CHECK_EXCEPTION; |
duke@435 | 1303 | } |