--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/agent/src/os/solaris/proc/saproc.cpp Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,1300 @@
+/*
+ * Copyright 2002-2007 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#include "salibproc.h"
+#include "sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal.h"
+#include <thread_db.h>
+#include <strings.h>
+#include <limits.h>
+#include <demangle.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#define CHECK_EXCEPTION_(value) if(env->ExceptionOccurred()) { return value; }
+#define CHECK_EXCEPTION if(env->ExceptionOccurred()) { return;}
+#define THROW_NEW_DEBUGGER_EXCEPTION_(str, value) { throwNewDebuggerException(env, str); return value; }
+#define THROW_NEW_DEBUGGER_EXCEPTION(str) { throwNewDebuggerException(env, str); return;}
+
+#define SYMBOL_BUF_SIZE 256
+#define ERR_MSG_SIZE (PATH_MAX + 256)
+
+// debug mode
+static int _libsaproc_debug = 0;
+
+static void print_debug(const char* format,...) {
+ if (_libsaproc_debug) {
+ va_list alist;
+
+ va_start(alist, format);
+ fputs("libsaproc DEBUG: ", stderr);
+ vfprintf(stderr, format, alist);
+ va_end(alist);
+ }
+}
+
+struct Debugger {
+ JNIEnv* env;
+ jobject this_obj;
+};
+
+struct DebuggerWithObject : Debugger {
+ jobject obj;
+};
+
+struct DebuggerWith2Objects : DebuggerWithObject {
+ jobject obj2;
+};
+
+/*
+* Portions of user thread level detail gathering code is from pstack source
+* code. See pstack.c in Solaris 2.8 user commands source code.
+*/
+
+static void throwNewDebuggerException(JNIEnv* env, const char* errMsg) {
+ env->ThrowNew(env->FindClass("sun/jvm/hotspot/debugger/DebuggerException"), errMsg);
+}
+
+// JNI ids for some fields, methods
+
+// libproc handler pointer
+static jfieldID p_ps_prochandle_ID = 0;
+
+// libthread.so dlopen handle, thread agent ptr and function pointers
+static jfieldID libthread_db_handle_ID = 0;
+static jfieldID p_td_thragent_t_ID = 0;
+static jfieldID p_td_init_ID = 0;
+static jfieldID p_td_ta_new_ID = 0;
+static jfieldID p_td_ta_delete_ID = 0;
+static jfieldID p_td_ta_thr_iter_ID = 0;
+static jfieldID p_td_thr_get_info_ID = 0;
+static jfieldID p_td_ta_map_id2thr_ID = 0;
+static jfieldID p_td_thr_getgregs_ID = 0;
+
+// reg index fields
+static jfieldID pcRegIndex_ID = 0;
+static jfieldID fpRegIndex_ID = 0;
+
+// part of the class sharing workaround
+static jfieldID classes_jsa_fd_ID = 0;
+static jfieldID p_file_map_header_ID = 0;
+
+// method ids
+
+static jmethodID getThreadForThreadId_ID = 0;
+static jmethodID createSenderFrame_ID = 0;
+static jmethodID createLoadObject_ID = 0;
+static jmethodID createClosestSymbol_ID = 0;
+static jmethodID listAdd_ID = 0;
+
+/*
+ * Functions we need from libthread_db
+ */
+typedef td_err_e
+ (*p_td_init_t)(void);
+typedef td_err_e
+ (*p_td_ta_new_t)(void *, td_thragent_t **);
+typedef td_err_e
+ (*p_td_ta_delete_t)(td_thragent_t *);
+typedef td_err_e
+ (*p_td_ta_thr_iter_t)(const td_thragent_t *, td_thr_iter_f *, void *,
+ td_thr_state_e, int, sigset_t *, unsigned);
+typedef td_err_e
+ (*p_td_thr_get_info_t)(const td_thrhandle_t *, td_thrinfo_t *);
+typedef td_err_e
+ (*p_td_ta_map_id2thr_t)(const td_thragent_t *, thread_t, td_thrhandle_t *);
+typedef td_err_e
+ (*p_td_thr_getgregs_t)(const td_thrhandle_t *, prgregset_t);
+
+static void
+clear_libthread_db_ptrs(JNIEnv* env, jobject this_obj) {
+ // release libthread_db agent, if we had created
+ p_td_ta_delete_t p_td_ta_delete = 0;
+ p_td_ta_delete = (p_td_ta_delete_t) env->GetLongField(this_obj, p_td_ta_delete_ID);
+
+ td_thragent_t *p_td_thragent_t = 0;
+ p_td_thragent_t = (td_thragent_t*) env->GetLongField(this_obj, p_td_thragent_t_ID);
+ if (p_td_thragent_t != 0 && p_td_ta_delete != 0) {
+ p_td_ta_delete(p_td_thragent_t);
+ }
+
+ // dlclose libthread_db.so
+ void* libthread_db_handle = (void*) env->GetLongField(this_obj, libthread_db_handle_ID);
+ if (libthread_db_handle != 0) {
+ dlclose(libthread_db_handle);
+ }
+
+ env->SetLongField(this_obj, libthread_db_handle_ID, (jlong)0);
+ env->SetLongField(this_obj, p_td_init_ID, (jlong)0);
+ env->SetLongField(this_obj, p_td_ta_new_ID, (jlong)0);
+ env->SetLongField(this_obj, p_td_ta_delete_ID, (jlong)0);
+ env->SetLongField(this_obj, p_td_ta_thr_iter_ID, (jlong)0);
+ env->SetLongField(this_obj, p_td_thr_get_info_ID, (jlong)0);
+ env->SetLongField(this_obj, p_td_ta_map_id2thr_ID, (jlong)0);
+ env->SetLongField(this_obj, p_td_thr_getgregs_ID, (jlong)0);
+}
+
+
+static void detach_internal(JNIEnv* env, jobject this_obj) {
+ // clear libthread_db stuff
+ clear_libthread_db_ptrs(env, this_obj);
+
+ // release ptr to ps_prochandle
+ jlong p_ps_prochandle;
+ p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID);
+ if (p_ps_prochandle != 0L) {
+ Prelease((struct ps_prochandle*) p_ps_prochandle, PRELEASE_CLEAR);
+ }
+
+ // part of the class sharing workaround
+ int classes_jsa_fd = env->GetIntField(this_obj, classes_jsa_fd_ID);
+ if (classes_jsa_fd != -1) {
+ close(classes_jsa_fd);
+ struct FileMapHeader* pheader = (struct FileMapHeader*) env->GetLongField(this_obj, p_file_map_header_ID);
+ if (pheader != NULL) {
+ free(pheader);
+ }
+ }
+}
+
+// Is it okay to ignore libthread_db failure? Set env var to ignore
+// libthread_db failure. You can still debug, but will miss threads
+// related functionality.
+static bool sa_ignore_threaddb = (getenv("SA_IGNORE_THREADDB") != 0);
+
+#define HANDLE_THREADDB_FAILURE(msg) \
+ if (sa_ignore_threaddb) { \
+ printf("libsaproc WARNING: %s\n", msg); \
+ return; \
+ } else { \
+ THROW_NEW_DEBUGGER_EXCEPTION(msg); \
+ }
+
+#define HANDLE_THREADDB_FAILURE_(msg, ret) \
+ if (sa_ignore_threaddb) { \
+ printf("libsaproc WARNING: %s\n", msg); \
+ return ret; \
+ } else { \
+ THROW_NEW_DEBUGGER_EXCEPTION_(msg, ret); \
+ }
+
+static const char * alt_root = NULL;
+static int alt_root_len = -1;
+
+#define SA_ALTROOT "SA_ALTROOT"
+
+static void init_alt_root() {
+ if (alt_root_len == -1) {
+ alt_root = getenv(SA_ALTROOT);
+ if (alt_root)
+ alt_root_len = strlen(alt_root);
+ else
+ alt_root_len = 0;
+ }
+}
+
+static int find_file_hook(const char * name, int elf_checksum) {
+ init_alt_root();
+
+ if (_libsaproc_debug) {
+ printf("libsaproc DEBUG: find_file_hook %s 0x%x\n", name, elf_checksum);
+ }
+
+ if (alt_root_len > 0) {
+ int fd = -1;
+ char alt_path[PATH_MAX+1];
+
+ strcpy(alt_path, alt_root);
+ strcat(alt_path, name);
+ fd = open(alt_path, O_RDONLY);
+ if (fd >= 0) {
+ if (_libsaproc_debug) {
+ printf("libsaproc DEBUG: find_file_hook substituted %s\n", alt_path);
+ }
+ return fd;
+ }
+
+ if (strrchr(name, '/')) {
+ strcpy(alt_path, alt_root);
+ strcat(alt_path, strrchr(name, '/'));
+ fd = open(alt_path, O_RDONLY);
+ if (fd >= 0) {
+ if (_libsaproc_debug) {
+ printf("libsaproc DEBUG: find_file_hook substituted %s\n", alt_path);
+ }
+ return fd;
+ }
+ }
+ }
+ return -1;
+}
+
+static int pathmap_open(const char* name) {
+ int fd = open(name, O_RDONLY);
+ if (fd < 0) {
+ fd = find_file_hook(name, 0);
+ }
+ return fd;
+}
+
+static void * pathmap_dlopen(const char * name, int mode) {
+ init_alt_root();
+
+ if (_libsaproc_debug) {
+ printf("libsaproc DEBUG: pathmap_dlopen %s\n", name);
+ }
+
+ void * handle = NULL;
+ if (alt_root_len > 0) {
+ char alt_path[PATH_MAX+1];
+ strcpy(alt_path, alt_root);
+ strcat(alt_path, name);
+ handle = dlopen(alt_path, mode);
+ if (_libsaproc_debug && handle) {
+ printf("libsaproc DEBUG: pathmap_dlopen substituted %s\n", alt_path);
+ }
+
+ if (handle == NULL && strrchr(name, '/')) {
+ strcpy(alt_path, alt_root);
+ strcat(alt_path, strrchr(name, '/'));
+ handle = dlopen(alt_path, mode);
+ if (_libsaproc_debug && handle) {
+ printf("libsaproc DEBUG: pathmap_dlopen substituted %s\n", alt_path);
+ }
+ }
+ }
+ if (handle == NULL) {
+ handle = dlopen(name, mode);
+ }
+ if (_libsaproc_debug) {
+ printf("libsaproc DEBUG: pathmap_dlopen %s return 0x%x\n", name, handle);
+ }
+ return handle;
+}
+
+// libproc and libthread_db callback functions
+
+extern "C" {
+
+static int
+init_libthread_db_ptrs(void *cd, const prmap_t *pmp, const char *object_name) {
+ Debugger* dbg = (Debugger*) cd;
+ JNIEnv* env = dbg->env;
+ jobject this_obj = dbg->this_obj;
+ struct ps_prochandle* ph = (struct ps_prochandle*) env->GetLongField(this_obj, p_ps_prochandle_ID);
+
+ char *s1 = 0, *s2 = 0;
+ char libthread_db[PATH_MAX];
+
+ if (strstr(object_name, "/libthread.so.") == NULL)
+ return (0);
+
+ /*
+ * We found a libthread.
+ * dlopen() the matching libthread_db and get the thread agent handle.
+ */
+ if (Pstatus(ph)->pr_dmodel == PR_MODEL_NATIVE) {
+ (void) strcpy(libthread_db, object_name);
+ s1 = (char*) strstr(object_name, ".so.");
+ s2 = (char*) strstr(libthread_db, ".so.");
+ (void) strcpy(s2, "_db");
+ s2 += 3;
+ (void) strcpy(s2, s1);
+ } else {
+#ifdef _LP64
+ /*
+ * The victim process is 32-bit, we are 64-bit.
+ * We have to find the 64-bit version of libthread_db
+ * that matches the victim's 32-bit version of libthread.
+ */
+ (void) strcpy(libthread_db, object_name);
+ s1 = (char*) strstr(object_name, "/libthread.so.");
+ s2 = (char*) strstr(libthread_db, "/libthread.so.");
+ (void) strcpy(s2, "/64");
+ s2 += 3;
+ (void) strcpy(s2, s1);
+ s1 = (char*) strstr(s1, ".so.");
+ s2 = (char*) strstr(s2, ".so.");
+ (void) strcpy(s2, "_db");
+ s2 += 3;
+ (void) strcpy(s2, s1);
+#else
+ return (0);
+#endif /* _LP64 */
+ }
+
+ void* libthread_db_handle = 0;
+ if ((libthread_db_handle = pathmap_dlopen(libthread_db, RTLD_LAZY|RTLD_LOCAL)) == NULL) {
+ char errMsg[PATH_MAX + 256];
+ sprintf(errMsg, "Can't load %s!", libthread_db);
+ HANDLE_THREADDB_FAILURE_(errMsg, 0);
+ }
+ env->SetLongField(this_obj, libthread_db_handle_ID, (jlong)(uintptr_t)libthread_db_handle);
+
+ void* tmpPtr = 0;
+ tmpPtr = dlsym(libthread_db_handle, "td_init");
+ if (tmpPtr == 0) {
+ HANDLE_THREADDB_FAILURE_("dlsym failed on td_init!", 0);
+ }
+ env->SetLongField(this_obj, p_td_init_ID, (jlong)(uintptr_t) tmpPtr);
+
+ tmpPtr =dlsym(libthread_db_handle, "td_ta_new");
+ if (tmpPtr == 0) {
+ HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_new!", 0);
+ }
+ env->SetLongField(this_obj, p_td_ta_new_ID, (jlong)(uintptr_t) tmpPtr);
+
+ tmpPtr = dlsym(libthread_db_handle, "td_ta_delete");
+ if (tmpPtr == 0) {
+ HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_delete!", 0);
+ }
+ env->SetLongField(this_obj, p_td_ta_delete_ID, (jlong)(uintptr_t) tmpPtr);
+
+ tmpPtr = dlsym(libthread_db_handle, "td_ta_thr_iter");
+ if (tmpPtr == 0) {
+ HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_thr_iter!", 0);
+ }
+ env->SetLongField(this_obj, p_td_ta_thr_iter_ID, (jlong)(uintptr_t) tmpPtr);
+
+ tmpPtr = dlsym(libthread_db_handle, "td_thr_get_info");
+ if (tmpPtr == 0) {
+ HANDLE_THREADDB_FAILURE_("dlsym failed on td_thr_get_info!", 0);
+ }
+ env->SetLongField(this_obj, p_td_thr_get_info_ID, (jlong)(uintptr_t) tmpPtr);
+
+ tmpPtr = dlsym(libthread_db_handle, "td_ta_map_id2thr");
+ if (tmpPtr == 0) {
+ HANDLE_THREADDB_FAILURE_("dlsym failed on td_ta_map_id2thr!", 0);
+ }
+ env->SetLongField(this_obj, p_td_ta_map_id2thr_ID, (jlong)(uintptr_t) tmpPtr);
+
+ tmpPtr = dlsym(libthread_db_handle, "td_thr_getgregs");
+ if (tmpPtr == 0) {
+ HANDLE_THREADDB_FAILURE_("dlsym failed on td_thr_getgregs!", 0);
+ }
+ env->SetLongField(this_obj, p_td_thr_getgregs_ID, (jlong)(uintptr_t) tmpPtr);
+
+ return 1;
+}
+
+static int
+fill_thread_list(const td_thrhandle_t *p_td_thragent_t, void* cd) {
+ DebuggerWithObject* dbgo = (DebuggerWithObject*) cd;
+ JNIEnv* env = dbgo->env;
+ jobject this_obj = dbgo->this_obj;
+ jobject list = dbgo->obj;
+
+ td_thrinfo_t thrinfo;
+ 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);
+
+ if (p_td_thr_get_info(p_td_thragent_t, &thrinfo) != TD_OK)
+ return (0);
+
+ jobject threadProxy = env->CallObjectMethod(this_obj, getThreadForThreadId_ID, (jlong)(uintptr_t) thrinfo.ti_tid);
+ CHECK_EXCEPTION_(1);
+ env->CallBooleanMethod(list, listAdd_ID, threadProxy);
+ CHECK_EXCEPTION_(1);
+ return 0;
+}
+
+static int
+fill_load_object_list(void *cd, const prmap_t* pmp, const char* obj_name) {
+
+ if (obj_name) {
+ DebuggerWithObject* dbgo = (DebuggerWithObject*) cd;
+ JNIEnv* env = dbgo->env;
+ jobject this_obj = dbgo->this_obj;
+ jobject list = dbgo->obj;
+
+ jstring objectName = env->NewStringUTF(obj_name);
+ CHECK_EXCEPTION_(1);
+
+ jlong mapSize = (jlong) pmp->pr_size;
+ jobject sharedObject = env->CallObjectMethod(this_obj, createLoadObject_ID,
+ objectName, mapSize, (jlong)(uintptr_t)pmp->pr_vaddr);
+ CHECK_EXCEPTION_(1);
+ env->CallBooleanMethod(list, listAdd_ID, sharedObject);
+ CHECK_EXCEPTION_(1);
+ }
+
+ return 0;
+}
+
+static int
+fill_cframe_list(void *cd, const prgregset_t regs, uint_t argc, const long *argv) {
+ DebuggerWith2Objects* dbgo2 = (DebuggerWith2Objects*) cd;
+ JNIEnv* env = dbgo2->env;
+ jobject this_obj = dbgo2->this_obj;
+ jobject curFrame = dbgo2->obj2;
+
+ jint pcRegIndex = env->GetIntField(this_obj, pcRegIndex_ID);
+ jint fpRegIndex = env->GetIntField(this_obj, fpRegIndex_ID);
+
+ jlong pc = (jlong) (uintptr_t) regs[pcRegIndex];
+ jlong fp = (jlong) (uintptr_t) regs[fpRegIndex];
+
+ dbgo2->obj2 = env->CallObjectMethod(this_obj, createSenderFrame_ID,
+ curFrame, pc, fp);
+ CHECK_EXCEPTION_(1);
+ if (dbgo2->obj == 0) {
+ dbgo2->obj = dbgo2->obj2;
+ }
+ return 0;
+}
+
+// part of the class sharing workaround
+
+// FIXME: !!HACK ALERT!!
+
+// The format of sharing achive file header is needed to read shared heap
+// file mappings. For now, I am hard coding portion of FileMapHeader here.
+// Refer to filemap.hpp.
+
+// FileMapHeader describes the shared space data in the file to be
+// mapped. This structure gets written to a file. It is not a class, so
+// that the compilers don't add any compiler-private data to it.
+
+// Refer to CompactingPermGenGen::n_regions in compactingPermGenGen.hpp
+const int NUM_SHARED_MAPS = 4;
+
+// Refer to FileMapInfo::_current_version in filemap.hpp
+const int CURRENT_ARCHIVE_VERSION = 1;
+
+struct FileMapHeader {
+ int _magic; // identify file type.
+ int _version; // (from enum, above.)
+ size_t _alignment; // how shared archive should be aligned
+
+
+ struct space_info {
+ int _file_offset; // sizeof(this) rounded to vm page size
+ char* _base; // copy-on-write base address
+ size_t _capacity; // for validity checking
+ size_t _used; // for setting space top on read
+
+ bool _read_only; // read only space?
+ bool _allow_exec; // executable code in space?
+
+ } _space[NUM_SHARED_MAPS]; // was _space[CompactingPermGenGen::n_regions];
+
+ // Ignore the rest of the FileMapHeader. We don't need those fields here.
+};
+
+static bool
+read_int(struct ps_prochandle* ph, psaddr_t addr, int* pvalue) {
+ int i;
+ if (ps_pread(ph, addr, &i, sizeof(i)) == PS_OK) {
+ *pvalue = i;
+ return true;
+ } else {
+ return false;
+ }
+}
+
+static bool
+read_pointer(struct ps_prochandle* ph, psaddr_t addr, uintptr_t* pvalue) {
+ uintptr_t uip;
+ if (ps_pread(ph, addr, &uip, sizeof(uip)) == PS_OK) {
+ *pvalue = uip;
+ return true;
+ } else {
+ return false;
+ }
+}
+
+static bool
+read_string(struct ps_prochandle* ph, psaddr_t addr, char* buf, size_t size) {
+ char ch = ' ';
+ size_t i = 0;
+
+ while (ch != '\0') {
+ if (ps_pread(ph, addr, &ch, sizeof(ch)) != PS_OK)
+ return false;
+
+ if (i < size - 1) {
+ buf[i] = ch;
+ } else { // smaller buffer
+ return false;
+ }
+
+ i++; addr++;
+ }
+
+ buf[i] = '\0';
+ return true;
+}
+
+#define USE_SHARED_SPACES_SYM "UseSharedSpaces"
+// mangled symbol name for Arguments::SharedArchivePath
+#define SHARED_ARCHIVE_PATH_SYM "__1cJArgumentsRSharedArchivePath_"
+
+static int
+init_classsharing_workaround(void *cd, const prmap_t* pmap, const char* obj_name) {
+ Debugger* dbg = (Debugger*) cd;
+ JNIEnv* env = dbg->env;
+ jobject this_obj = dbg->this_obj;
+ const char* jvm_name = 0;
+ if ((jvm_name = strstr(obj_name, "libjvm.so")) != NULL ||
+ (jvm_name = strstr(obj_name, "libjvm_g.so")) != NULL) {
+ jvm_name = obj_name;
+ } else {
+ return 0;
+ }
+
+ struct ps_prochandle* ph = (struct ps_prochandle*) env->GetLongField(this_obj, p_ps_prochandle_ID);
+
+ // initialize classes[_g].jsa file descriptor field.
+ dbg->env->SetIntField(this_obj, classes_jsa_fd_ID, -1);
+
+ // check whether class sharing is on by reading variable "UseSharedSpaces"
+ psaddr_t useSharedSpacesAddr = 0;
+ ps_pglobal_lookup(ph, jvm_name, USE_SHARED_SPACES_SYM, &useSharedSpacesAddr);
+ if (useSharedSpacesAddr == 0) {
+ THROW_NEW_DEBUGGER_EXCEPTION_("can't find 'UseSharedSpaces' flag\n", 1);
+ }
+
+ // read the value of the flag "UseSharedSpaces"
+ int value = 0;
+ if (read_int(ph, useSharedSpacesAddr, &value) != true) {
+ THROW_NEW_DEBUGGER_EXCEPTION_("can't read 'UseSharedSpaces' flag", 1);
+ } else if (value == 0) {
+ print_debug("UseSharedSpaces is false, assuming -Xshare:off!\n");
+ return 1;
+ }
+
+ char classes_jsa[PATH_MAX];
+ psaddr_t sharedArchivePathAddrAddr = 0;
+ ps_pglobal_lookup(ph, jvm_name, SHARED_ARCHIVE_PATH_SYM, &sharedArchivePathAddrAddr);
+ if (sharedArchivePathAddrAddr == 0) {
+ print_debug("can't find symbol 'Arguments::SharedArchivePath'\n");
+ THROW_NEW_DEBUGGER_EXCEPTION_("can't get shared archive path from debuggee", 1);
+ }
+
+ uintptr_t sharedArchivePathAddr = 0;
+ if (read_pointer(ph, sharedArchivePathAddrAddr, &sharedArchivePathAddr) != true) {
+ print_debug("can't find read pointer 'Arguments::SharedArchivePath'\n");
+ THROW_NEW_DEBUGGER_EXCEPTION_("can't get shared archive path from debuggee", 1);
+ }
+
+ if (read_string(ph, (psaddr_t)sharedArchivePathAddr, classes_jsa, sizeof(classes_jsa)) != true) {
+ print_debug("can't find read 'Arguments::SharedArchivePath' value\n");
+ THROW_NEW_DEBUGGER_EXCEPTION_("can't get shared archive path from debuggee", 1);
+ }
+
+ print_debug("looking for %s\n", classes_jsa);
+
+ // open the classes[_g].jsa
+ int fd = pathmap_open(classes_jsa);
+ if (fd < 0) {
+ char errMsg[ERR_MSG_SIZE];
+ sprintf(errMsg, "can't open shared archive file %s", classes_jsa);
+ THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1);
+ } else {
+ print_debug("opened shared archive file %s\n", classes_jsa);
+ }
+
+ // parse classes[_g].jsa
+ struct FileMapHeader* pheader = (struct FileMapHeader*) malloc(sizeof(struct FileMapHeader));
+ if (pheader == NULL) {
+ close(fd);
+ THROW_NEW_DEBUGGER_EXCEPTION_("can't allocate memory for shared file map header", 1);
+ }
+
+ memset(pheader, 0, sizeof(struct FileMapHeader));
+ // read FileMapHeader
+ size_t n = read(fd, pheader, sizeof(struct FileMapHeader));
+ if (n != sizeof(struct FileMapHeader)) {
+ free(pheader);
+ close(fd);
+ char errMsg[ERR_MSG_SIZE];
+ sprintf(errMsg, "unable to read shared archive file map header from %s", classes_jsa);
+ THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1);
+ }
+
+ // check file magic
+ if (pheader->_magic != 0xf00baba2) {
+ free(pheader);
+ close(fd);
+ char errMsg[ERR_MSG_SIZE];
+ sprintf(errMsg, "%s has bad shared archive magic 0x%x, expecting 0xf00baba2",
+ classes_jsa, pheader->_magic);
+ THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1);
+ }
+
+ // check version
+ if (pheader->_version != CURRENT_ARCHIVE_VERSION) {
+ free(pheader);
+ close(fd);
+ char errMsg[ERR_MSG_SIZE];
+ sprintf(errMsg, "%s has wrong shared archive version %d, expecting %d",
+ classes_jsa, pheader->_version, CURRENT_ARCHIVE_VERSION);
+ THROW_NEW_DEBUGGER_EXCEPTION_(errMsg, 1);
+ }
+
+ if (_libsaproc_debug) {
+ for (int m = 0; m < NUM_SHARED_MAPS; m++) {
+ print_debug("shared file offset %d mapped at 0x%lx, size = %ld, read only? = %d\n",
+ pheader->_space[m]._file_offset, pheader->_space[m]._base,
+ pheader->_space[m]._used, pheader->_space[m]._read_only);
+ }
+ }
+
+ // FIXME: For now, omitting other checks such as VM version etc.
+
+ // store class archive file fd and map header in debugger object fields
+ dbg->env->SetIntField(this_obj, classes_jsa_fd_ID, fd);
+ dbg->env->SetLongField(this_obj, p_file_map_header_ID, (jlong)(uintptr_t) pheader);
+ return 1;
+}
+
+} // extern "C"
+
+// error messages for proc_arg_grab failure codes. The messages are
+// modified versions of comments against corresponding #defines in
+// libproc.h.
+static const char* proc_arg_grab_errmsgs[] = {
+ "",
+ /* G_NOPROC */ "No such process",
+ /* G_NOCORE */ "No such core file",
+ /* G_NOPROCORCORE */ "No such process or core",
+ /* G_NOEXEC */ "Cannot locate executable file",
+ /* G_ZOMB */ "Zombie processs",
+ /* G_PERM */ "No permission to attach",
+ /* G_BUSY */ "Another process has already attached",
+ /* G_SYS */ "System process - can not attach",
+ /* G_SELF */ "Process is self - can't debug myself!",
+ /* G_INTR */ "Interrupt received while grabbing",
+ /* G_LP64 */ "debuggee is 64 bit, use java -d64 for debugger",
+ /* G_FORMAT */ "File is not an ELF format core file - corrupted core?",
+ /* G_ELF */ "Libelf error while parsing an ELF file",
+ /* G_NOTE */ "Required PT_NOTE Phdr not present - corrupted core?",
+};
+
+static void attach_internal(JNIEnv* env, jobject this_obj, jstring cmdLine, jboolean isProcess) {
+ jboolean isCopy;
+ int gcode;
+ const char* cmdLine_cstr = env->GetStringUTFChars(cmdLine, &isCopy);
+ CHECK_EXCEPTION;
+
+ // some older versions of libproc.so crash when trying to attach 32 bit
+ // debugger to 64 bit core file. check and throw error.
+#ifndef _LP64
+ atoi(cmdLine_cstr);
+ if (errno) {
+ // core file
+ int core_fd;
+ if ((core_fd = open64(cmdLine_cstr, O_RDONLY)) >= 0) {
+ Elf32_Ehdr e32;
+ if (pread64(core_fd, &e32, sizeof (e32), 0) == sizeof (e32) &&
+ memcmp(&e32.e_ident[EI_MAG0], ELFMAG, SELFMAG) == 0 &&
+ e32.e_type == ET_CORE && e32.e_ident[EI_CLASS] == ELFCLASS64) {
+ close(core_fd);
+ THROW_NEW_DEBUGGER_EXCEPTION("debuggee is 64 bit, use java -d64 for debugger");
+ }
+ close(core_fd);
+ }
+ // all other conditions are handled by libproc.so.
+ }
+#endif
+
+ // connect to process/core
+ struct ps_prochandle* ph = proc_arg_grab(cmdLine_cstr, (isProcess? PR_ARG_PIDS : PR_ARG_CORES), PGRAB_FORCE, &gcode);
+ env->ReleaseStringUTFChars(cmdLine, cmdLine_cstr);
+ if (! ph) {
+ if (gcode > 0 && gcode < sizeof(proc_arg_grab_errmsgs)/sizeof(const char*)) {
+ char errMsg[ERR_MSG_SIZE];
+ sprintf(errMsg, "Attach failed : %s", proc_arg_grab_errmsgs[gcode]);
+ THROW_NEW_DEBUGGER_EXCEPTION(errMsg);
+ } else {
+ if (_libsaproc_debug && gcode == G_STRANGE) {
+ perror("libsaproc DEBUG: ");
+ }
+ if (isProcess) {
+ THROW_NEW_DEBUGGER_EXCEPTION("Not able to attach to process!");
+ } else {
+ THROW_NEW_DEBUGGER_EXCEPTION("Not able to attach to core file!");
+ }
+ }
+ }
+
+ // even though libproc.so supports 64 bit debugger and 32 bit debuggee, we don't
+ // support such cross-bit-debugging. check for that combination and throw error.
+#ifdef _LP64
+ int data_model;
+ if (ps_pdmodel(ph, &data_model) != PS_OK) {
+ Prelease(ph, PRELEASE_CLEAR);
+ THROW_NEW_DEBUGGER_EXCEPTION("can't determine debuggee data model (ILP32? or LP64?)");
+ }
+ if (data_model == PR_MODEL_ILP32) {
+ Prelease(ph, PRELEASE_CLEAR);
+ THROW_NEW_DEBUGGER_EXCEPTION("debuggee is 32 bit, use 32 bit java for debugger");
+ }
+#endif
+
+ env->SetLongField(this_obj, p_ps_prochandle_ID, (jlong)(uintptr_t)ph);
+
+ Debugger dbg;
+ dbg.env = env;
+ dbg.this_obj = this_obj;
+ jthrowable exception = 0;
+ if (! isProcess) {
+ /*
+ * With class sharing, shared perm. gen heap is allocated in with MAP_SHARED|PROT_READ.
+ * These pages are mapped from the file "classes[_g].jsa". MAP_SHARED pages are not dumped
+ * in Solaris core.To read shared heap pages, we have to read classes[_g].jsa file.
+ */
+ Pobject_iter(ph, init_classsharing_workaround, &dbg);
+ exception = env->ExceptionOccurred();
+ if (exception) {
+ env->ExceptionClear();
+ detach_internal(env, this_obj);
+ env->Throw(exception);
+ return;
+ }
+ }
+
+ /*
+ * Iterate over the process mappings looking
+ * for libthread and then dlopen the appropriate
+ * libthread_db and get function pointers.
+ */
+ Pobject_iter(ph, init_libthread_db_ptrs, &dbg);
+ exception = env->ExceptionOccurred();
+ if (exception) {
+ env->ExceptionClear();
+ if (!sa_ignore_threaddb) {
+ detach_internal(env, this_obj);
+ env->Throw(exception);
+ }
+ return;
+ }
+
+ // init libthread_db and create thread_db agent
+ p_td_init_t p_td_init = (p_td_init_t) env->GetLongField(this_obj, p_td_init_ID);
+ if (p_td_init == 0) {
+ if (!sa_ignore_threaddb) {
+ detach_internal(env, this_obj);
+ }
+ HANDLE_THREADDB_FAILURE("Did not find libthread in target process/core!");
+ }
+
+ if (p_td_init() != TD_OK) {
+ if (!sa_ignore_threaddb) {
+ detach_internal(env, this_obj);
+ }
+ HANDLE_THREADDB_FAILURE("Can't initialize thread_db!");
+ }
+
+ p_td_ta_new_t p_td_ta_new = (p_td_ta_new_t) env->GetLongField(this_obj, p_td_ta_new_ID);
+
+ td_thragent_t *p_td_thragent_t = 0;
+ if (p_td_ta_new(ph, &p_td_thragent_t) != TD_OK) {
+ if (!sa_ignore_threaddb) {
+ detach_internal(env, this_obj);
+ }
+ HANDLE_THREADDB_FAILURE("Can't create thread_db agent!");
+ }
+ env->SetLongField(this_obj, p_td_thragent_t_ID, (jlong)(uintptr_t) p_td_thragent_t);
+
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: attach0
+ * Signature: (Ljava/lang/String;)V
+ * Description: process detach
+ */
+JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_attach0__Ljava_lang_String_2
+ (JNIEnv *env, jobject this_obj, jstring pid) {
+ attach_internal(env, this_obj, pid, JNI_TRUE);
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: attach0
+ * Signature: (Ljava/lang/String;Ljava/lang/String;)V
+ * Description: core file detach
+ */
+JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2
+ (JNIEnv *env, jobject this_obj, jstring executable, jstring corefile) {
+ // ignore executable file name, libproc.so can detect a.out name anyway.
+ attach_internal(env, this_obj, corefile, JNI_FALSE);
+}
+
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: detach0
+ * Signature: ()V
+ * Description: process/core file detach
+ */
+JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_detach0
+ (JNIEnv *env, jobject this_obj) {
+ detach_internal(env, this_obj);
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: getRemoteProcessAddressSize0
+ * Signature: ()I
+ * Description: get process/core address size
+ */
+JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_getRemoteProcessAddressSize0
+ (JNIEnv *env, jobject this_obj) {
+ jlong p_ps_prochandle;
+ p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID);
+ int data_model = PR_MODEL_ILP32;
+ ps_pdmodel((struct ps_prochandle*) p_ps_prochandle, &data_model);
+ print_debug("debuggee is %d bit\n", data_model == PR_MODEL_ILP32? 32 : 64);
+ return (jint) data_model == PR_MODEL_ILP32? 32 : 64;
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: getPageSize0
+ * Signature: ()I
+ * Description: get process/core page size
+ */
+JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_getPageSize0
+ (JNIEnv *env, jobject this_obj) {
+
+/*
+ We are not yet attached to a java process or core file. getPageSize is called from
+ the constructor of ProcDebuggerLocal. The following won't work!
+
+ jlong p_ps_prochandle;
+ p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID);
+ CHECK_EXCEPTION_(-1);
+ struct ps_prochandle* prochandle = (struct ps_prochandle*) p_ps_prochandle;
+ return (Pstate(prochandle) == PS_DEAD) ? Pgetauxval(prochandle, AT_PAGESZ)
+ : getpagesize();
+
+ So even though core may have been generated with a different page size settings, for now
+ call getpagesize.
+*/
+
+ return getpagesize();
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: getThreadIntegerRegisterSet0
+ * Signature: (J)[J
+ * Description: get gregset for a given thread specified by thread id
+ */
+JNIEXPORT jlongArray JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_getThreadIntegerRegisterSet0
+ (JNIEnv *env, jobject this_obj, jlong tid) {
+ // map the thread id to thread handle
+ 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);
+
+ td_thragent_t* p_td_thragent_t = (td_thragent_t*) env->GetLongField(this_obj, p_td_thragent_t_ID);
+ if (p_td_thragent_t == 0) {
+ return 0;
+ }
+
+ td_thrhandle_t thr_handle;
+ if (p_td_ta_map_id2thr(p_td_thragent_t, (thread_t) tid, &thr_handle) != TD_OK) {
+ THROW_NEW_DEBUGGER_EXCEPTION_("can't map thread id to thread handle!", 0);
+ }
+
+ p_td_thr_getgregs_t p_td_thr_getgregs = (p_td_thr_getgregs_t) env->GetLongField(this_obj, p_td_thr_getgregs_ID);
+ prgregset_t gregs;
+ p_td_thr_getgregs(&thr_handle, gregs);
+
+ jlongArray res = env->NewLongArray(NPRGREG);
+ CHECK_EXCEPTION_(0);
+ jboolean isCopy;
+ jlong* ptr = env->GetLongArrayElements(res, &isCopy);
+ for (int i = 0; i < NPRGREG; i++) {
+ ptr[i] = (jlong) (uintptr_t) gregs[i];
+ }
+ env->ReleaseLongArrayElements(res, ptr, JNI_COMMIT);
+ return res;
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: fillThreadList0
+ * Signature: (Ljava/util/List;)V
+ * Description: fills thread list of the debuggee process/core
+ */
+JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_fillThreadList0
+ (JNIEnv *env, jobject this_obj, jobject list) {
+
+ td_thragent_t* p_td_thragent_t = (td_thragent_t*) env->GetLongField(this_obj, p_td_thragent_t_ID);
+ if (p_td_thragent_t == 0) {
+ return;
+ }
+
+ 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);
+
+ DebuggerWithObject dbgo;
+ dbgo.env = env;
+ dbgo.this_obj = this_obj;
+ dbgo.obj = list;
+
+ p_td_ta_thr_iter(p_td_thragent_t, fill_thread_list, &dbgo,
+ TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY, TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS);
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: fillCFrameList0
+ * Signature: ([J)Lsun/jvm/hotspot/debugger/proc/ProcCFrame;
+ * Description: fills CFrame list for a given thread
+ */
+JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_fillCFrameList0
+ (JNIEnv *env, jobject this_obj, jlongArray regsArray) {
+ jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID);
+
+ DebuggerWith2Objects dbgo2;
+ dbgo2.env = env;
+ dbgo2.this_obj = this_obj;
+ dbgo2.obj = NULL;
+ dbgo2.obj2 = NULL;
+
+ jboolean isCopy;
+ jlong* ptr = env->GetLongArrayElements(regsArray, &isCopy);
+ CHECK_EXCEPTION_(0);
+
+ prgregset_t gregs;
+ for (int i = 0; i < NPRGREG; i++) {
+ gregs[i] = (uintptr_t) ptr[i];
+ }
+
+ env->ReleaseLongArrayElements(regsArray, ptr, JNI_ABORT);
+ CHECK_EXCEPTION_(0);
+ Pstack_iter((struct ps_prochandle*) p_ps_prochandle, gregs, fill_cframe_list, &dbgo2);
+ return dbgo2.obj;
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: fillLoadObjectList0
+ * Signature: (Ljava/util/List;)V
+ * Description: fills shared objects of the debuggee process/core
+ */
+JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_fillLoadObjectList0
+ (JNIEnv *env, jobject this_obj, jobject list) {
+ DebuggerWithObject dbgo;
+ dbgo.env = env;
+ dbgo.this_obj = this_obj;
+ dbgo.obj = list;
+
+ jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID);
+ Pobject_iter((struct ps_prochandle*) p_ps_prochandle, fill_load_object_list, &dbgo);
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: readBytesFromProcess0
+ * Signature: (JJ)[B
+ * Description: read bytes from debuggee process/core
+ */
+JNIEXPORT jbyteArray JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_readBytesFromProcess0
+ (JNIEnv *env, jobject this_obj, jlong address, jlong numBytes) {
+
+ jbyteArray array = env->NewByteArray(numBytes);
+ CHECK_EXCEPTION_(0);
+ jboolean isCopy;
+ jbyte* bufPtr = env->GetByteArrayElements(array, &isCopy);
+ CHECK_EXCEPTION_(0);
+
+ jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID);
+ ps_err_e ret = ps_pread((struct ps_prochandle*) p_ps_prochandle,
+ (psaddr_t)address, bufPtr, (size_t)numBytes);
+
+ if (ret != PS_OK) {
+ // part of the class sharing workaround. try shared heap area
+ int classes_jsa_fd = env->GetIntField(this_obj, classes_jsa_fd_ID);
+ if (classes_jsa_fd != -1 && address != (jlong)0) {
+ print_debug("read failed at 0x%lx, attempting shared heap area\n", (long) address);
+
+ struct FileMapHeader* pheader = (struct FileMapHeader*) env->GetLongField(this_obj, p_file_map_header_ID);
+ // walk through the shared mappings -- we just have 4 of them.
+ // so, linear walking is okay.
+ for (int m = 0; m < NUM_SHARED_MAPS; m++) {
+
+ // We can skip the non-read-only maps. These are mapped as MAP_PRIVATE
+ // and hence will be read by libproc. Besides, the file copy may be
+ // stale because the process might have modified those pages.
+ if (pheader->_space[m]._read_only) {
+ jlong baseAddress = (jlong) (uintptr_t) pheader->_space[m]._base;
+ size_t usedSize = pheader->_space[m]._used;
+ if (address >= baseAddress && address < (baseAddress + usedSize)) {
+ // the given address falls in this shared heap area
+ print_debug("found shared map at 0x%lx\n", (long) baseAddress);
+
+
+ // If more data is asked than actually mapped from file, we need to zero fill
+ // till the end-of-page boundary. But, java array new does that for us. we just
+ // need to read as much as data available.
+
+#define MIN2(x, y) (((x) < (y))? (x) : (y))
+
+ jlong diff = address - baseAddress;
+ jlong bytesToRead = MIN2(numBytes, usedSize - diff);
+ off_t offset = pheader->_space[m]._file_offset + off_t(diff);
+ ssize_t bytesRead = pread(classes_jsa_fd, bufPtr, bytesToRead, offset);
+ if (bytesRead != bytesToRead) {
+ env->ReleaseByteArrayElements(array, bufPtr, JNI_ABORT);
+ print_debug("shared map read failed\n");
+ return jbyteArray(0);
+ } else {
+ print_debug("shared map read succeeded\n");
+ env->ReleaseByteArrayElements(array, bufPtr, 0);
+ return array;
+ }
+ } // is in current map
+ } // is read only map
+ } // for shared maps
+ } // classes_jsa_fd != -1
+ env->ReleaseByteArrayElements(array, bufPtr, JNI_ABORT);
+ return jbyteArray(0);
+ } else {
+ env->ReleaseByteArrayElements(array, bufPtr, 0);
+ return array;
+ }
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: writeBytesToProcess0
+ * Signature: (JJ[B)V
+ * Description: write bytes into debugger process
+ */
+JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_writeBytesToProcess0
+ (JNIEnv *env, jobject this_obj, jlong address, jlong numBytes, jbyteArray data) {
+ jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID);
+ jboolean isCopy;
+ jbyte* ptr = env->GetByteArrayElements(data, &isCopy);
+ CHECK_EXCEPTION;
+
+ if (ps_pwrite((struct ps_prochandle*) p_ps_prochandle, address, ptr, numBytes) != PS_OK) {
+ env->ReleaseByteArrayElements(data, ptr, JNI_ABORT);
+ THROW_NEW_DEBUGGER_EXCEPTION("Process write failed!");
+ }
+
+ env->ReleaseByteArrayElements(data, ptr, JNI_ABORT);
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: suspend0
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_suspend0
+ (JNIEnv *env, jobject this_obj) {
+ jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID);
+ // for now don't check return value. revisit this again.
+ Pstop((struct ps_prochandle*) p_ps_prochandle, 1000);
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: resume0
+ * Signature: ()V
+ */
+JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_resume0
+ (JNIEnv *env, jobject this_obj) {
+ jlong p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID);
+ // for now don't check return value. revisit this again.
+ Psetrun((struct ps_prochandle*) p_ps_prochandle, 0, PRCFAULT|PRSTOP);
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: lookupByName0
+ * Signature: (Ljava/lang/String;Ljava/lang/String;)J
+ * Description: symbol lookup by name
+*/
+JNIEXPORT jlong JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_lookupByName0
+ (JNIEnv *env, jobject this_obj, jstring objectName, jstring symbolName) {
+ jlong p_ps_prochandle;
+ p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID);
+
+ jboolean isCopy;
+ const char* objectName_cstr = NULL;
+ if (objectName != NULL) {
+ objectName_cstr = env->GetStringUTFChars(objectName, &isCopy);
+ CHECK_EXCEPTION_(0);
+ } else {
+ objectName_cstr = PR_OBJ_EVERY;
+ }
+
+ const char* symbolName_cstr = env->GetStringUTFChars(symbolName, &isCopy);
+ CHECK_EXCEPTION_(0);
+
+ psaddr_t symbol_addr = (psaddr_t) 0;
+ ps_pglobal_lookup((struct ps_prochandle*) p_ps_prochandle, objectName_cstr,
+ symbolName_cstr, &symbol_addr);
+
+ if (symbol_addr == 0) {
+ print_debug("lookup for %s in %s failed\n", symbolName_cstr, objectName_cstr);
+ }
+
+ if (objectName_cstr != PR_OBJ_EVERY) {
+ env->ReleaseStringUTFChars(objectName, objectName_cstr);
+ }
+ env->ReleaseStringUTFChars(symbolName, symbolName_cstr);
+ return (jlong) (uintptr_t) symbol_addr;
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: lookupByAddress0
+ * Signature: (J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;
+ * Description: lookup symbol name for a given address
+ */
+JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_lookupByAddress0
+ (JNIEnv *env, jobject this_obj, jlong address) {
+ jlong p_ps_prochandle;
+ p_ps_prochandle = env->GetLongField(this_obj, p_ps_prochandle_ID);
+
+ char nameBuf[SYMBOL_BUF_SIZE + 1];
+ GElf_Sym sym;
+ int res = Plookup_by_addr((struct ps_prochandle*) p_ps_prochandle, (uintptr_t) address,
+ nameBuf, sizeof(nameBuf), &sym);
+ if (res != 0) { // failed
+ return 0;
+ }
+
+ jstring resSym = env->NewStringUTF(nameBuf);
+ CHECK_EXCEPTION_(0);
+
+ return env->CallObjectMethod(this_obj, createClosestSymbol_ID, resSym, (address - sym.st_value));
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: demangle0
+ * Signature: (Ljava/lang/String;)Ljava/lang/String;
+ */
+JNIEXPORT jstring JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_demangle0
+ (JNIEnv *env, jobject this_object, jstring name) {
+ jboolean isCopy;
+ const char* ptr = env->GetStringUTFChars(name, &isCopy);
+ char buf[2*SYMBOL_BUF_SIZE + 1];
+ jstring res = 0;
+ if (cplus_demangle((char*) ptr, buf, sizeof(buf)) != DEMANGLE_ESPACE) {
+ res = env->NewStringUTF(buf);
+ } else {
+ res = name;
+ }
+ env->ReleaseStringUTFChars(name, ptr);
+ return res;
+}
+
+typedef int (*find_file_hook_t)(const char *, int elf_checksum);
+
+/*
+ * Class: sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal
+ * Method: initIDs
+ * Signature: ()V
+ * Description: get JNI ids for fields and methods of ProcDebuggerLocal class
+ */
+JNIEXPORT void JNICALL Java_sun_jvm_hotspot_debugger_proc_ProcDebuggerLocal_initIDs
+ (JNIEnv *env, jclass clazz) {
+ _libsaproc_debug = getenv("LIBSAPROC_DEBUG") != NULL;
+ if (_libsaproc_debug) {
+ // propagate debug mode to libproc.so
+ static const char* var = "LIBPROC_DEBUG=1";
+ putenv((char*)var);
+ }
+
+ void* libproc_handle = dlopen("libproc.so", RTLD_LAZY | RTLD_GLOBAL);
+ if (libproc_handle == 0)
+ THROW_NEW_DEBUGGER_EXCEPTION("can't load libproc.so, if you are using Solaris 5.7 or below, copy libproc.so from 5.8!");
+
+ // If possible, set shared object find file hook.
+ void (*set_hook)(find_file_hook_t) = (void(*)(find_file_hook_t))dlsym(libproc_handle, "Pset_find_file_hook");
+ if (set_hook) {
+ // we found find file hook symbol, set up our hook function.
+ set_hook(find_file_hook);
+ } else if (getenv(SA_ALTROOT)) {
+ printf("libsaproc WARNING: %s set, but can't set file hook. " \
+ "Did you use right version of libproc.so?\n", SA_ALTROOT);
+ }
+
+ p_ps_prochandle_ID = env->GetFieldID(clazz, "p_ps_prochandle", "J");
+ CHECK_EXCEPTION;
+
+ libthread_db_handle_ID = env->GetFieldID(clazz, "libthread_db_handle", "J");
+ CHECK_EXCEPTION;
+
+ p_td_thragent_t_ID = env->GetFieldID(clazz, "p_td_thragent_t", "J");
+ CHECK_EXCEPTION;
+
+ p_td_init_ID = env->GetFieldID(clazz, "p_td_init", "J");
+ CHECK_EXCEPTION;
+
+ p_td_ta_new_ID = env->GetFieldID(clazz, "p_td_ta_new", "J");
+ CHECK_EXCEPTION;
+
+ p_td_ta_delete_ID = env->GetFieldID(clazz, "p_td_ta_delete", "J");
+ CHECK_EXCEPTION;
+
+ p_td_ta_thr_iter_ID = env->GetFieldID(clazz, "p_td_ta_thr_iter", "J");
+ CHECK_EXCEPTION;
+
+ p_td_thr_get_info_ID = env->GetFieldID(clazz, "p_td_thr_get_info", "J");
+ CHECK_EXCEPTION;
+
+ p_td_ta_map_id2thr_ID = env->GetFieldID(clazz, "p_td_ta_map_id2thr", "J");
+ CHECK_EXCEPTION;
+
+ p_td_thr_getgregs_ID = env->GetFieldID(clazz, "p_td_thr_getgregs", "J");
+ CHECK_EXCEPTION;
+
+ getThreadForThreadId_ID = env->GetMethodID(clazz,
+ "getThreadForThreadId", "(J)Lsun/jvm/hotspot/debugger/ThreadProxy;");
+ CHECK_EXCEPTION;
+
+ pcRegIndex_ID = env->GetFieldID(clazz, "pcRegIndex", "I");
+ CHECK_EXCEPTION;
+
+ fpRegIndex_ID = env->GetFieldID(clazz, "fpRegIndex", "I");
+ CHECK_EXCEPTION;
+
+ createSenderFrame_ID = env->GetMethodID(clazz,
+ "createSenderFrame", "(Lsun/jvm/hotspot/debugger/proc/ProcCFrame;JJ)Lsun/jvm/hotspot/debugger/proc/ProcCFrame;");
+ CHECK_EXCEPTION;
+
+ createLoadObject_ID = env->GetMethodID(clazz,
+ "createLoadObject", "(Ljava/lang/String;JJ)Lsun/jvm/hotspot/debugger/cdbg/LoadObject;");
+ CHECK_EXCEPTION;
+
+ createClosestSymbol_ID = env->GetMethodID(clazz,
+ "createClosestSymbol", "(Ljava/lang/String;J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;");
+ CHECK_EXCEPTION;
+
+ listAdd_ID = env->GetMethodID(env->FindClass("java/util/List"), "add", "(Ljava/lang/Object;)Z");
+ CHECK_EXCEPTION;
+
+ // part of the class sharing workaround
+ classes_jsa_fd_ID = env->GetFieldID(clazz, "classes_jsa_fd", "I");
+ CHECK_EXCEPTION;
+ p_file_map_header_ID = env->GetFieldID(clazz, "p_file_map_header", "J");
+ CHECK_EXCEPTION;
+}