diff -urN /tmp/a/attachListener_solaris.cpp b/src/hotspot/os/solaris/attachListener_solaris.cpp
--- /tmp/a/attachListener_solaris.cpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/attachListener_solaris.cpp 2024-09-16 14:41:33.965885977 +0100
@@ -0,0 +1,719 @@
+/*
+ * Copyright (c) 2005, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "logging/log.hpp"
+#include "runtime/interfaceSupport.inline.hpp"
+#include "runtime/os.inline.hpp"
+#include "services/attachListener.hpp"
+#include "services/dtraceAttacher.hpp"
+#include "utilities/vmError.hpp"
+
+#include <door.h>
+#include <limits.h>
+#include <string.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+
+// stropts.h uses STR in stream ioctl defines
+#undef STR
+#include <stropts.h>
+#undef STR
+#define STR(a) #a
+
+// The attach mechanism on Solaris is implemented using the Doors IPC
+// mechanism. The first tool to attempt to attach causes the attach
+// listener thread to startup. This thread creates a door that is
+// associated with a function that enqueues an operation to the attach
+// listener. The door is attached to a file in the file system so that
+// client (tools) can locate it. To enqueue an operation to the VM the
+// client calls through the door which invokes the enqueue function in
+// this process. The credentials of the client are checked and if the
+// effective uid matches this process then the operation is enqueued.
+// When an operation completes the attach listener is required to send the
+// operation result and any result data to the client. In this implementation
+// the result is returned via a UNIX domain socket. A pair of connected
+// sockets (socketpair) is created in the enqueue function and the file
+// descriptor for one of the sockets is returned to the client as the
+// return from the door call. The other end is retained in this process.
+// When the operation completes the result is sent to the client and
+// the socket is closed.
+
+// forward reference
+class SolarisAttachOperation;
+
+class SolarisAttachListener: AllStatic {
+ private:
+
+ // the path to which we attach the door file descriptor
+ static char _door_path[PATH_MAX+1];
+ static volatile bool _has_door_path;
+
+ // door descriptor returned by door_create
+ static int _door_descriptor;
+
+ static bool _atexit_registered;
+
+ // mutex to protect operation list
+ static pthread_mutex_t _mutex;
+
+ // semaphore to wakeup listener thread
+ static sema_t _wakeup;
+
+ static pthread_mutex_t* mutex() { return &_mutex; }
+ static sema_t* wakeup() { return &_wakeup; }
+
+ // enqueued operation list
+ static SolarisAttachOperation* _head;
+ static SolarisAttachOperation* _tail;
+
+ static SolarisAttachOperation* head() { return _head; }
+ static void set_head(SolarisAttachOperation* head) { _head = head; }
+
+ static SolarisAttachOperation* tail() { return _tail; }
+ static void set_tail(SolarisAttachOperation* tail) { _tail = tail; }
+
+ // create the door
+ static int create_door();
+
+ public:
+ enum {
+ ATTACH_PROTOCOL_VER = 1 // protocol version
+ };
+ enum {
+ ATTACH_ERROR_BADREQUEST = 100, // error codes
+ ATTACH_ERROR_BADVERSION = 101,
+ ATTACH_ERROR_RESOURCE = 102,
+ ATTACH_ERROR_INTERNAL = 103,
+ ATTACH_ERROR_DENIED = 104
+ };
+
+ static void set_door_path(char* path) {
+ if (path == NULL) {
+ _door_path[0] = '\0';
+ _has_door_path = false;
+ } else {
+ strncpy(_door_path, path, PATH_MAX);
+ _door_path[PATH_MAX] = '\0';
+ _has_door_path = true;
+ }
+ }
+
+ static void set_door_descriptor(int dd) { _door_descriptor = dd; }
+
+ // initialize the listener, returns 0 if okay
+ static int init();
+
+ static char* door_path() { return _door_path; }
+ static bool has_door_path() { return _has_door_path; }
+ static int door_descriptor() { return _door_descriptor; }
+
+ // enqueue an operation
+ static void enqueue(SolarisAttachOperation* op);
+
+ // dequeue an operation
+ static SolarisAttachOperation* dequeue();
+};
+
+
+// SolarisAttachOperation is an AttachOperation that additionally encapsulates
+// a socket connection to the requesting client/tool. SolarisAttachOperation
+// can additionally be held in a linked list.
+
+class SolarisAttachOperation: public AttachOperation {
+ private:
+ friend class SolarisAttachListener;
+
+ // connection to client
+ int _socket;
+
+ // linked list support
+ SolarisAttachOperation* _next;
+
+ SolarisAttachOperation* next() { return _next; }
+ void set_next(SolarisAttachOperation* next) { _next = next; }
+
+ public:
+ void complete(jint res, bufferedStream* st);
+
+ void set_socket(int s) { _socket = s; }
+ int socket() const { return _socket; }
+
+ SolarisAttachOperation(char* name) : AttachOperation(name) {
+ set_socket(-1);
+ set_next(NULL);
+ }
+};
+
+// statics
+char SolarisAttachListener::_door_path[PATH_MAX+1];
+volatile bool SolarisAttachListener::_has_door_path;
+int SolarisAttachListener::_door_descriptor = -1;
+bool SolarisAttachListener::_atexit_registered = false;
+pthread_mutex_t SolarisAttachListener::_mutex;
+sema_t SolarisAttachListener::_wakeup;
+SolarisAttachOperation* SolarisAttachListener::_head = NULL;
+SolarisAttachOperation* SolarisAttachListener::_tail = NULL;
+
+// Supporting class to help split a buffer into individual components
+class ArgumentIterator : public StackObj {
+ private:
+ char* _pos;
+ char* _end;
+ public:
+ ArgumentIterator(char* arg_buffer, size_t arg_size) {
+ _pos = arg_buffer;
+ _end = _pos + arg_size - 1;
+ }
+ char* next() {
+ if (*_pos == '\0') {
+ // advance the iterator if possible (null arguments)
+ if (_pos < _end) {
+ _pos += 1;
+ }
+ return NULL;
+ }
+ char* res = _pos;
+ char* next_pos = strchr(_pos, '\0');
+ if (next_pos < _end) {
+ next_pos++;
+ }
+ _pos = next_pos;
+ return res;
+ }
+};
+
+// Calls from the door function to check that the client credentials
+// match this process. Returns 0 if credentials okay, otherwise -1.
+static int check_credentials() {
+ ucred_t *cred_info = NULL;
+ int ret = -1; // deny by default
+
+ // get client credentials
+ if (door_ucred(&cred_info) == -1) {
+ return -1; // unable to get them, deny
+ }
+
+ // get euid/egid from ucred_free
+ uid_t ucred_euid = ucred_geteuid(cred_info);
+ gid_t ucred_egid = ucred_getegid(cred_info);
+
+ // check that the effective uid/gid matches
+ if (os::Posix::matches_effective_uid_and_gid_or_root(ucred_euid, ucred_egid)) {
+ ret = 0; // allow
+ }
+
+ ucred_free(cred_info);
+ return ret;
+}
+
+
+// Parses the argument buffer to create an AttachOperation that we should
+// enqueue to the attach listener.
+// The buffer is expected to be formatted as follows:
+// <ver>0<cmd>0<arg>0<arg>0<arg>0
+// where <ver> is the version number (must be "1"), <cmd> is the command
+// name ("load, "datadump", ...) and <arg> is an argument.
+//
+static SolarisAttachOperation* create_operation(char* argp, size_t arg_size, int* err) {
+ // assume bad request until parsed
+ *err = SolarisAttachListener::ATTACH_ERROR_BADREQUEST;
+
+ if (arg_size < 2 || argp[arg_size-1] != '\0') {
+ return NULL; // no ver or not null terminated
+ }
+
+ // Use supporting class to iterate over the buffer
+ ArgumentIterator args(argp, arg_size);
+
+ // First check the protocol version
+ char* ver = args.next();
+ if (ver == NULL) {
+ return NULL;
+ }
+ if (atoi(ver) != SolarisAttachListener::ATTACH_PROTOCOL_VER) {
+ *err = SolarisAttachListener::ATTACH_ERROR_BADVERSION;
+ return NULL;
+ }
+
+ // Get command name and create the operation
+ char* name = args.next();
+ if (name == NULL || strlen(name) > AttachOperation::name_length_max) {
+ return NULL;
+ }
+ SolarisAttachOperation* op = new SolarisAttachOperation(name);
+
+ // Iterate over the arguments
+ for (int i=0; i<AttachOperation::arg_count_max; i++) {
+ char* arg = args.next();
+ if (arg == NULL) {
+ op->set_arg(i, NULL);
+ } else {
+ if (strlen(arg) > AttachOperation::arg_length_max) {
+ delete op;
+ return NULL;
+ }
+ op->set_arg(i, arg);
+ }
+ }
+
+ // return operation
+ *err = 0;
+ return op;
+}
+
+// This is door function which the client executes via a door_call.
+extern "C" {
+ static void enqueue_proc(void* cookie, char* argp, size_t arg_size,
+ door_desc_t* dt, uint_t n_desc)
+ {
+ int return_fd = -1;
+ SolarisAttachOperation* op = NULL;
+
+ // wait up to 10 seconds for listener to be up and running
+ jint res = 0;
+ int sleep_count = 0;
+ while (!AttachListener::is_initialized()) {
+ sleep(1); // 1 second
+ sleep_count++;
+ if (sleep_count > 10) { // try for 10 seconds
+ debug_only(warning("door_call when not enabled"));
+ res = (jint)SolarisAttachListener::ATTACH_ERROR_INTERNAL;
+ break;
+ }
+ }
+
+ // check client credentials
+ if (res == 0) {
+ if (check_credentials() != 0) {
+ res = (jint)SolarisAttachListener::ATTACH_ERROR_DENIED;
+ }
+ }
+
+ // if we are stopped at ShowMessageBoxOnError then maybe we can
+ // load a diagnostic library
+ if (res == 0 && VMError::is_error_reported()) {
+ if (ShowMessageBoxOnError) {
+ // TBD - support loading of diagnostic library here
+ }
+
+ // can't enqueue operation after fatal error
+ res = (jint)SolarisAttachListener::ATTACH_ERROR_RESOURCE;
+ }
+
+ // create the operation
+ if (res == 0) {
+ int err;
+ op = create_operation(argp, arg_size, &err);
+ res = (op == NULL) ? (jint)err : 0;
+ }
+
+ // create a pair of connected sockets. Store the file descriptor
+ // for one end in the operation and enqueue the operation. The
+ // file descriptor for the other end will be returned to the client.
+ if (res == 0) {
+ int s[2];
+ if (socketpair(PF_UNIX, SOCK_STREAM, 0, s) < 0) {
+ delete op;
+ res = (jint)SolarisAttachListener::ATTACH_ERROR_RESOURCE;
+ } else {
+ op->set_socket(s[0]);
+ return_fd = s[1];
+ SolarisAttachListener::enqueue(op);
+ }
+ }
+
+ // Return 0 (success) + file descriptor, or non-0 (error)
+ if (res == 0) {
+ door_desc_t desc;
+ // DOOR_RELEASE flag makes sure fd is closed after passing it to
+ // the client. See door_return(3DOOR) man page.
+ desc.d_attributes = DOOR_DESCRIPTOR | DOOR_RELEASE;
+ desc.d_data.d_desc.d_descriptor = return_fd;
+ door_return((char*)&res, sizeof(res), &desc, 1);
+ } else {
+ door_return((char*)&res, sizeof(res), NULL, 0);
+ }
+ }
+}
+
+// atexit hook to detach the door and remove the file
+extern "C" {
+ static void listener_cleanup() {
+ int dd = SolarisAttachListener::door_descriptor();
+ if (dd >= 0) {
+ SolarisAttachListener::set_door_descriptor(-1);
+ ::close(dd);
+ }
+ if (SolarisAttachListener::has_door_path()) {
+ char* path = SolarisAttachListener::door_path();
+ ::fdetach(path);
+ ::unlink(path);
+ SolarisAttachListener::set_door_path(NULL);
+ }
+ }
+}
+
+// Create the door
+int SolarisAttachListener::create_door() {
+ char door_path[PATH_MAX];
+ char initial_path[PATH_MAX];
+ int fd, res;
+
+ // register function to cleanup
+ if (!_atexit_registered) {
+ _atexit_registered = true;
+ ::atexit(listener_cleanup);
+ }
+
+ // create the door descriptor
+ int dd = ::door_create(enqueue_proc, NULL, 0);
+ if (dd < 0) {
+ return -1;
+ }
+
+ int n = snprintf(door_path, PATH_MAX, "%s/.java_pid%d",
+ os::get_temp_directory(), os::current_process_id());
+ if (n < (int)PATH_MAX) {
+ snprintf(initial_path, PATH_MAX, "%s.tmp", door_path);
+ }
+ if (n >= (int)PATH_MAX) {
+ return -1;
+ }
+ RESTARTABLE(::creat(initial_path, S_IRUSR | S_IWUSR), fd);
+ if (fd == -1) {
+ log_debug(attach)("attempt to create door file %s failed (%d)", initial_path, errno);
+ ::door_revoke(dd);
+ return -1;
+ }
+ assert(fd >= 0, "bad file descriptor");
+ ::close(fd);
+
+ // attach the door descriptor to the file
+ if ((res = ::fattach(dd, initial_path)) == -1) {
+ // if busy then detach and try again
+ if (errno == EBUSY) {
+ ::fdetach(initial_path);
+ res = ::fattach(dd, initial_path);
+ }
+ if (res == -1) {
+ log_debug(attach)("unable to create door - fattach failed (%d)", errno);
+ ::door_revoke(dd);
+ dd = -1;
+ }
+ }
+
+ // rename file so that clients can attach
+ if (dd >= 0) {
+ if (::rename(initial_path, door_path) == -1) {
+ ::close(dd);
+ ::fdetach(initial_path);
+ log_debug(attach)("unable to create door - rename %s to %s failed (%d)", initial_path, door_path, errno);
+ dd = -1;
+ }
+ }
+ if (dd >= 0) {
+ set_door_descriptor(dd);
+ set_door_path(door_path);
+ log_trace(attach)("door file %s created successfully", door_path);
+ } else {
+ // unable to create door, attach it to file, or rename file into place
+ ::unlink(initial_path);
+ return -1;
+ }
+
+ return 0;
+}
+
+// Initialization - create the door, locks, and other initialization
+int SolarisAttachListener::init() {
+ if (create_door()) {
+ return -1;
+ }
+
+ int status = pthread_mutex_init(&_mutex, NULL);
+ assert_status(status==0, status, "mutex_init");
+
+ status = ::sema_init(&_wakeup, 0, NULL, NULL);
+ assert_status(status==0, status, "sema_init");
+
+ set_head(NULL);
+ set_tail(NULL);
+
+ return 0;
+}
+
+// Dequeue an operation
+SolarisAttachOperation* SolarisAttachListener::dequeue() {
+ for (;;) {
+ int res;
+
+ // wait for somebody to enqueue something
+ while ((res = ::sema_wait(wakeup())) == EINTR)
+ ;
+ if (res) {
+ warning("sema_wait failed: %s", os::strerror(res));
+ return NULL;
+ }
+
+ // lock the list
+ res = pthread_mutex_lock(mutex());
+ assert(res == 0, "mutex_lock failed");
+
+ // remove the head of the list
+ SolarisAttachOperation* op = head();
+ if (op != NULL) {
+ set_head(op->next());
+ if (head() == NULL) {
+ set_tail(NULL);
+ }
+ }
+
+ // unlock
+ pthread_mutex_unlock(mutex());
+
+ // if we got an operation when return it.
+ if (op != NULL) {
+ return op;
+ }
+ }
+}
+
+// Enqueue an operation
+void SolarisAttachListener::enqueue(SolarisAttachOperation* op) {
+ // lock list
+ int res = pthread_mutex_lock(mutex());
+ assert(res == 0, "mutex_lock failed");
+
+ // enqueue at tail
+ op->set_next(NULL);
+ if (head() == NULL) {
+ set_head(op);
+ } else {
+ tail()->set_next(op);
+ }
+ set_tail(op);
+
+ // wakeup the attach listener
+ RESTARTABLE(::sema_post(wakeup()), res);
+ assert(res == 0, "sema_post failed");
+
+ // unlock
+ pthread_mutex_unlock(mutex());
+}
+
+
+// support function - writes the (entire) buffer to a socket
+static int write_fully(int s, char* buf, int len) {
+ do {
+ int n = ::write(s, buf, len);
+ if (n == -1) {
+ if (errno != EINTR) return -1;
+ } else {
+ buf += n;
+ len -= n;
+ }
+ }
+ while (len > 0);
+ return 0;
+}
+
+// Complete an operation by sending the operation result and any result
+// output to the client. At this time the socket is in blocking mode so
+// potentially we can block if there is a lot of data and the client is
+// non-responsive. For most operations this is a non-issue because the
+// default send buffer is sufficient to buffer everything. In the future
+// if there are operations that involves a very big reply then it the
+// socket could be made non-blocking and a timeout could be used.
+
+void SolarisAttachOperation::complete(jint res, bufferedStream* st) {
+ if (this->socket() >= 0) {
+ JavaThread* thread = JavaThread::current();
+ ThreadBlockInVM tbivm(thread);
+
+ // write operation result
+ char msg[32];
+ sprintf(msg, "%d\n", res);
+ int rc = write_fully(this->socket(), msg, strlen(msg));
+
+ // write any result data
+ if (rc == 0) {
+ write_fully(this->socket(), (char*) st->base(), st->size());
+ ::shutdown(this->socket(), 2);
+ }
+
+ // done
+ ::close(this->socket());
+ }
+ delete this;
+}
+
+
+// AttachListener functions
+
+AttachOperation* AttachListener::dequeue() {
+ JavaThread* thread = JavaThread::current();
+ ThreadBlockInVM tbivm(thread);
+
+ AttachOperation* op = SolarisAttachListener::dequeue();
+
+ return op;
+}
+
+
+// Performs initialization at vm startup
+// For Solaris we remove any stale .java_pid file which could cause
+// an attaching process to think we are ready to receive a door_call
+// before we are properly initialized
+
+void AttachListener::vm_start() {
+ char fn[PATH_MAX+1];
+ struct stat64 st;
+ int ret;
+
+ int n = snprintf(fn, sizeof(fn), "%s/.java_pid%d",
+ os::get_temp_directory(), os::current_process_id());
+ assert(n < sizeof(fn), "java_pid file name buffer overflow");
+
+ RESTARTABLE(::stat64(fn, &st), ret);
+ if (ret == 0) {
+ ret = ::unlink(fn);
+ if (ret == -1) {
+ log_debug(attach)("Failed to remove stale attach pid file at %s", fn);
+ }
+ }
+}
+
+int AttachListener::pd_init() {
+ JavaThread* thread = JavaThread::current();
+ ThreadBlockInVM tbivm(thread);
+
+ int ret_code = SolarisAttachListener::init();
+
+ return ret_code;
+}
+
+bool AttachListener::check_socket_file() {
+ int ret;
+ struct stat64 st;
+ ret = stat64(SolarisAttachListener::door_path(), &st);
+ if (ret == -1) { // need to restart attach listener.
+ log_debug(attach)("Door file %s does not exist - Restart Attach Listener",
+ SolarisAttachListener::door_path());
+
+ listener_cleanup();
+
+ // wait to terminate current attach listener instance...
+ while (AttachListener::transit_state(AL_INITIALIZING,
+ AL_NOT_INITIALIZED) != AL_NOT_INITIALIZED) {
+ os::naked_yield();
+ }
+ return is_init_trigger();
+ }
+ return false;
+}
+
+// Attach Listener is started lazily except in the case when
+// +ReduseSignalUsage is used
+bool AttachListener::init_at_startup() {
+ if (ReduceSignalUsage) {
+ return true;
+ } else {
+ return false;
+ }
+}
+
+// If the file .attach_pid<pid> exists in the working directory
+// or /tmp then this is the trigger to start the attach mechanism
+bool AttachListener::is_init_trigger() {
+ if (init_at_startup() || is_initialized()) {
+ return false; // initialized at startup or already initialized
+ }
+ char fn[PATH_MAX + 1];
+ int ret;
+ struct stat64 st;
+ sprintf(fn, ".attach_pid%d", os::current_process_id());
+ RESTARTABLE(::stat64(fn, &st), ret);
+ if (ret == -1) {
+ log_trace(attach)("Failed to find attach file: %s, trying alternate", fn);
+ snprintf(fn, sizeof(fn), "%s/.attach_pid%d",
+ os::get_temp_directory(), os::current_process_id());
+ RESTARTABLE(::stat64(fn, &st), ret);
+ if (ret == -1) {
+ log_debug(attach)("Failed to find attach file: %s", fn);
+ }
+ }
+ if (ret == 0) {
+ // simple check to avoid starting the attach mechanism when
+ // a bogus non-root user creates the file
+ if (os::Posix::matches_effective_uid_or_root(st.st_uid)) {
+ init();
+ log_trace(attach)("Attach triggered by %s", fn);
+ return true;
+ } else {
+ log_debug(attach)("File %s has wrong user id %d (vs %d). Attach is not triggered", fn, st.st_uid, geteuid());
+ }
+ }
+ return false;
+}
+
+// if VM aborts then remove listener
+void AttachListener::abort() {
+ listener_cleanup();
+}
+
+void AttachListener::pd_data_dump() {
+ os::signal_notify(SIGQUIT);
+}
+
+static jint enable_dprobes(AttachOperation* op, outputStream* out) {
+ const char* probe = op->arg(0);
+ if (probe == NULL || probe[0] == '\0') {
+ out->print_cr("No probe specified");
+ return JNI_ERR;
+ } else {
+ char *end;
+ long val = strtol(probe, &end, 10);
+ if (end == probe || val < 0 || val > INT_MAX) {
+ out->print_cr("invalid probe type");
+ return JNI_ERR;
+ } else {
+ int probe_typess = (int) val;
+ DTrace::enable_dprobes(probe_typess);
+ return JNI_OK;
+ }
+ }
+}
+
+// platform specific operations table
+static AttachOperationFunctionInfo funcs[] = {
+ { "enabledprobes", enable_dprobes },
+ { NULL, NULL }
+};
+
+void AttachListener::pd_detachall() {
+ DTrace::detach_all_clients();
+}
diff -urN /tmp/a/c1_globals_solaris.hpp b/src/hotspot/os/solaris/c1_globals_solaris.hpp
--- /tmp/a/c1_globals_solaris.hpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/c1_globals_solaris.hpp 2024-09-16 14:41:33.965962792 +0100
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2000, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_SOLARIS_C1_GLOBALS_SOLARIS_HPP
+#define OS_SOLARIS_C1_GLOBALS_SOLARIS_HPP
+
+#include "utilities/globalDefinitions.hpp"
+#include "utilities/macros.hpp"
+
+//
+// Sets the default values for operating system dependent flags used by the
+// client compiler. (see c1_globals.hpp)
+//
+
+#endif // OS_SOLARIS_C1_GLOBALS_SOLARIS_HPP
diff -urN /tmp/a/c2_globals_solaris.hpp b/src/hotspot/os/solaris/c2_globals_solaris.hpp
--- /tmp/a/c2_globals_solaris.hpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/c2_globals_solaris.hpp 2024-09-16 14:41:33.966036351 +0100
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2000, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_SOLARIS_C2_GLOBALS_SOLARIS_HPP
+#define OS_SOLARIS_C2_GLOBALS_SOLARIS_HPP
+
+#include "utilities/globalDefinitions.hpp"
+#include "utilities/macros.hpp"
+
+//
+// Sets the default values for operating system dependent flags used by the
+// server compiler. (see c2_globals.hpp)
+//
+
+#endif // OS_SOLARIS_C2_GLOBALS_SOLARIS_HPP
diff -urN /tmp/a/decoder_solaris.cpp b/src/hotspot/os/solaris/decoder_solaris.cpp
--- /tmp/a/decoder_solaris.cpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/decoder_solaris.cpp 2024-09-16 14:41:33.989898931 +0100
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 1997, 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "jvm.h"
+#include "utilities/decoder_elf.hpp"
+
+#include <cxxabi.h>
+
+bool ElfDecoder::demangle(const char* symbol, char *buf, int buflen) {
+ int status;
+ char* result;
+ size_t size = (size_t)buflen;
+ // Don't pass buf to __cxa_demangle. In case of the 'buf' is too small,
+ // __cxa_demangle will call system "realloc" for additional memory, which
+ // may use different malloc/realloc mechanism that allocates 'buf'.
+ if ((result = abi::__cxa_demangle(symbol, NULL, NULL, &status)) != NULL) {
+ jio_snprintf(buf, buflen, "%s", result);
+ // call c library's free
+ ::free(result);
+ return true;
+ }
+ return false;
+}
+
diff -urN /tmp/a/dtrace/jhelper.d b/src/hotspot/os/solaris/dtrace/jhelper.d
--- /tmp/a/dtrace/jhelper.d 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/dtrace/jhelper.d 2024-09-16 14:41:33.966540246 +0100
@@ -0,0 +1,540 @@
+/*
+ * Copyright (c) 2003, 2018, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/* This file is auto-generated */
+#include "JvmOffsetsIndex.h"
+
+#define DEBUG
+
+#ifdef DEBUG
+#define MARK_LINE this->line = __LINE__
+#else
+#define MARK_LINE
+#endif
+
+#ifdef _LP64
+#define STACK_BIAS 0x7ff
+#define pointer uint64_t
+#else
+#define STACK_BIAS 0
+#define pointer uint32_t
+#endif
+
+extern pointer __JvmOffsets;
+
+/* GrowableArray<CodeHeaps*>* */
+extern pointer __1cJCodeCacheG_heaps_;
+
+extern pointer __1cIUniverseO_collectedHeap_;
+
+extern pointer __1cHnmethodG__vtbl_;
+extern pointer __1cGMethodG__vtbl_;
+extern pointer __1cKBufferBlobG__vtbl_;
+
+#define copyin_ptr(ADDR) *(pointer*) copyin((pointer) (ADDR), sizeof(pointer))
+#define copyin_uchar(ADDR) *(uchar_t*) copyin((pointer) (ADDR), sizeof(uchar_t))
+#define copyin_uint16(ADDR) *(uint16_t*) copyin((pointer) (ADDR), sizeof(uint16_t))
+#define copyin_uint32(ADDR) *(uint32_t*) copyin((pointer) (ADDR), sizeof(uint32_t))
+#define copyin_int32(ADDR) *(int32_t*) copyin((pointer) (ADDR), sizeof(int32_t))
+#define copyin_uint8(ADDR) *(uint8_t*) copyin((pointer) (ADDR), sizeof(uint8_t))
+
+#define copyin_offset(JVM_CONST) JVM_CONST = \
+ copyin_int32(JvmOffsetsPtr + IDX_##JVM_CONST * sizeof(int32_t))
+
+int init_done;
+
+dtrace:helper:ustack:
+{
+ MARK_LINE;
+ this->done = 0;
+ /*
+ * TBD:
+ * Here we initialize init_done, otherwise jhelper does not work.
+ * Therefore, copyin_offset() statements work multiple times now.
+ * There is a hope we could avoid it in the future, and so,
+ * this initialization can be removed.
+ */
+ init_done = 0;
+ this->error = (char *) NULL;
+ this->result = (char *) NULL;
+ this->isMethod = 0;
+ this->codecache = 0;
+ this->klass = (pointer) NULL;
+ this->vtbl = (pointer) NULL;
+ this->suffix = '\0';
+}
+
+dtrace:helper:ustack:
+{
+ MARK_LINE;
+ /* Initialization of JvmOffsets constants */
+ JvmOffsetsPtr = (pointer) &``__JvmOffsets;
+}
+
+dtrace:helper:ustack:
+/!init_done && !this->done/
+{
+ MARK_LINE;
+
+ copyin_offset(POINTER_SIZE);
+ copyin_offset(COMPILER);
+ copyin_offset(OFFSET_CollectedHeap_reserved);
+ copyin_offset(OFFSET_MemRegion_start);
+ copyin_offset(OFFSET_MemRegion_word_size);
+ copyin_offset(SIZE_HeapWord);
+
+ copyin_offset(OFFSET_interpreter_frame_method);
+ copyin_offset(OFFSET_Klass_name);
+ copyin_offset(OFFSET_ConstantPool_pool_holder);
+
+ copyin_offset(OFFSET_HeapBlockHeader_used);
+ copyin_offset(OFFSET_oopDesc_metadata);
+
+ copyin_offset(OFFSET_Symbol_length);
+ copyin_offset(OFFSET_Symbol_body);
+
+ copyin_offset(OFFSET_Method_constMethod);
+ copyin_offset(OFFSET_ConstMethod_constants);
+ copyin_offset(OFFSET_ConstMethod_name_index);
+ copyin_offset(OFFSET_ConstMethod_signature_index);
+
+ copyin_offset(OFFSET_CodeHeap_memory);
+ copyin_offset(OFFSET_CodeHeap_segmap);
+ copyin_offset(OFFSET_CodeHeap_log2_segment_size);
+
+ copyin_offset(OFFSET_GrowableArray_CodeHeap_data);
+ copyin_offset(OFFSET_GrowableArray_CodeHeap_len);
+
+ copyin_offset(OFFSET_VirtualSpace_low);
+ copyin_offset(OFFSET_VirtualSpace_high);
+
+ copyin_offset(OFFSET_CodeBlob_name);
+
+ copyin_offset(OFFSET_nmethod_method);
+ copyin_offset(SIZE_HeapBlockHeader);
+ copyin_offset(SIZE_oopDesc);
+ copyin_offset(SIZE_ConstantPool);
+
+ copyin_offset(OFFSET_NarrowPtrStruct_base);
+ copyin_offset(OFFSET_NarrowPtrStruct_shift);
+
+ /*
+ * The PC to translate is in arg0.
+ */
+ this->pc = arg0;
+
+#if defined(__i386) || defined(__amd64)
+ this->methodPtr = copyin_ptr(arg1 + OFFSET_interpreter_frame_method);
+#else
+#error "Don't know architecture"
+#endif
+
+ /* Read address of GrowableArray<CodeHeaps*> */
+ // this->code_heaps_address = copyin_ptr(&``__1cJCodeCacheG_heaps_);
+ this->code_heaps_address = * ( uint64_t * ) copyin ( ( uint64_t ) ( &``__1cJCodeCacheG_heaps_ ) , sizeof ( uint64_t ) );
+
+ /* Read address of _data array field in GrowableArray */
+ this->code_heaps_array_address = copyin_ptr(this->code_heaps_address + OFFSET_GrowableArray_CodeHeap_data);
+ this->number_of_heaps = copyin_uint32(this->code_heaps_address + OFFSET_GrowableArray_CodeHeap_len);
+
+ this->Method_vtbl = (pointer) &``__1cGMethodG__vtbl_;
+
+ /*
+ * Get Java heap bounds
+ */
+ // this->Universe_collectedHeap = copyin_ptr(&``__1cIUniverseO_collectedHeap_);
+ this->Universe_collectedHeap = * ( uint64_t * ) copyin ( ( uint64_t ) ( &``__1cIUniverseO_collectedHeap_ ) , sizeof ( uint64_t ) );
+
+ this->heap_start = copyin_ptr(this->Universe_collectedHeap +
+ OFFSET_CollectedHeap_reserved +
+ OFFSET_MemRegion_start);
+ this->heap_size = SIZE_HeapWord *
+ copyin_ptr(this->Universe_collectedHeap +
+ OFFSET_CollectedHeap_reserved +
+ OFFSET_MemRegion_word_size
+ );
+ this->heap_end = this->heap_start + this->heap_size;
+}
+
+/*
+ * IMPORTANT: At the moment the ustack helper supports up to 5 code heaps in
+ * the code cache. If more code heaps are added the following probes have to
+ * be extended. This is done by simply adding a probe to get the heap bounds
+ * and another probe to set the code heap address of the newly created heap.
+ */
+
+/*
+ * ----- BEGIN: Get bounds of code heaps -----
+ */
+dtrace:helper:ustack:
+/init_done < 1 && this->number_of_heaps >= 1 && !this->done/
+{
+ MARK_LINE;
+ /* CodeHeap 1 */
+ init_done = 1;
+ this->code_heap1_address = copyin_ptr(this->code_heaps_array_address);
+ this->code_heap1_low = copyin_ptr(this->code_heap1_address +
+ OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_low);
+ this->code_heap1_high = copyin_ptr(this->code_heap1_address +
+ OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_high);
+}
+
+dtrace:helper:ustack:
+/init_done < 2 && this->number_of_heaps >= 2 && !this->done/
+{
+ MARK_LINE;
+ /* CodeHeap 2 */
+ init_done = 2;
+ this->code_heaps_array_address = this->code_heaps_array_address + POINTER_SIZE;
+ this->code_heap2_address = copyin_ptr(this->code_heaps_array_address);
+ this->code_heap2_low = copyin_ptr(this->code_heap2_address +
+ OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_low);
+ this->code_heap2_high = copyin_ptr(this->code_heap2_address +
+ OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_high);
+}
+
+dtrace:helper:ustack:
+/init_done < 3 && this->number_of_heaps >= 3 && !this->done/
+{
+ /* CodeHeap 3 */
+ init_done = 3;
+ this->code_heaps_array_address = this->code_heaps_array_address + POINTER_SIZE;
+ this->code_heap3_address = copyin_ptr(this->code_heaps_array_address);
+ this->code_heap3_low = copyin_ptr(this->code_heap3_address +
+ OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_low);
+ this->code_heap3_high = copyin_ptr(this->code_heap3_address +
+ OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_high);
+}
+
+dtrace:helper:ustack:
+/init_done < 4 && this->number_of_heaps >= 4 && !this->done/
+{
+ /* CodeHeap 4 */
+ init_done = 4;
+ this->code_heaps_array_address = this->code_heaps_array_address + POINTER_SIZE;
+ this->code_heap4_address = copyin_ptr(this->code_heaps_array_address);
+ this->code_heap4_low = copyin_ptr(this->code_heap4_address +
+ OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_low);
+ this->code_heap4_high = copyin_ptr(this->code_heap4_address +
+ OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_high);
+}
+
+dtrace:helper:ustack:
+/init_done < 5 && this->number_of_heaps >= 5 && !this->done/
+{
+ /* CodeHeap 5 */
+ init_done = 5;
+ this->code_heaps_array_address = this->code_heaps_array_address + POINTER_SIZE;
+ this->code_heap5_address = copyin_ptr(this->code_heaps_array_address);
+ this->code_heap5_low = copyin_ptr(this->code_heap5_address +
+ OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_low);
+ this->code_heap5_high = copyin_ptr(this->code_heap5_address +
+ OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_high);
+}
+/*
+ * ----- END: Get bounds of code heaps -----
+ */
+
+/*
+ * ----- BEGIN: Get address of the code heap pc points to -----
+ */
+dtrace:helper:ustack:
+/!this->done && this->number_of_heaps >= 1 && this->code_heap1_low <= this->pc && this->pc < this->code_heap1_high/
+{
+ MARK_LINE;
+ this->codecache = 1;
+ this->code_heap_address = this->code_heap1_address;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->number_of_heaps >= 2 && this->code_heap2_low <= this->pc && this->pc < this->code_heap2_high/
+{
+ MARK_LINE;
+ this->codecache = 1;
+ this->code_heap_address = this->code_heap2_address;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->number_of_heaps >= 3 && this->code_heap3_low <= this->pc && this->pc < this->code_heap3_high/
+{
+ MARK_LINE;
+ this->codecache = 1;
+ this->code_heap_address = this->code_heap3_address;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->number_of_heaps >= 4 && this->code_heap4_low <= this->pc && this->pc < this->code_heap4_high/
+{
+ MARK_LINE;
+ this->codecache = 1;
+ this->code_heap_address = this->code_heap4_address;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->number_of_heaps >= 5 && this->code_heap5_low <= this->pc && this->pc < this->code_heap5_high/
+{
+ MARK_LINE;
+ this->codecache = 1;
+ this->code_heap_address = this->code_heap5_address;
+}
+/*
+ * ----- END: Get address of the code heap pc points to -----
+ */
+
+dtrace:helper:ustack:
+/!this->done && this->codecache/
+{
+ MARK_LINE;
+ /*
+ * Get code heap configuration
+ */
+ this->code_heap_low = copyin_ptr(this->code_heap_address +
+ OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_low);
+ this->code_heap_segmap_low = copyin_ptr(this->code_heap_address +
+ OFFSET_CodeHeap_segmap + OFFSET_VirtualSpace_low);
+ this->code_heap_log2_segment_size = copyin_uint32(
+ this->code_heap_address + OFFSET_CodeHeap_log2_segment_size);
+
+ /*
+ * Find start
+ */
+ this->segment = (this->pc - this->code_heap_low) >>
+ this->code_heap_log2_segment_size;
+ this->block = this->code_heap_segmap_low;
+ this->tag = copyin_uchar(this->block + this->segment);
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+ MARK_LINE;
+ this->tag = copyin_uchar(this->block + this->segment);
+ this->segment = this->segment - this->tag;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+ MARK_LINE;
+ this->tag = copyin_uchar(this->block + this->segment);
+ this->segment = this->segment - this->tag;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+ MARK_LINE;
+ this->tag = copyin_uchar(this->block + this->segment);
+ this->segment = this->segment - this->tag;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+ MARK_LINE;
+ this->tag = copyin_uchar(this->block + this->segment);
+ this->segment = this->segment - this->tag;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+ MARK_LINE;
+ this->tag = copyin_uchar(this->block + this->segment);
+ this->segment = this->segment - this->tag;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && this->tag > 0/
+{
+ MARK_LINE;
+ this->error = "<couldn't find start>";
+ this->done = 1;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache/
+{
+ MARK_LINE;
+ this->block = this->code_heap_low +
+ (this->segment << this->code_heap_log2_segment_size);
+ this->used = copyin_uint32(this->block + OFFSET_HeapBlockHeader_used);
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache && !this->used/
+{
+ MARK_LINE;
+ this->error = "<block not in use>";
+ this->done = 1;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache/
+{
+ MARK_LINE;
+ this->start = this->block + SIZE_HeapBlockHeader;
+ this->vtbl = copyin_ptr(this->start);
+
+ this->nmethod_vtbl = (pointer) &``__1cHnmethodG__vtbl_;
+ this->BufferBlob_vtbl = (pointer) &``__1cKBufferBlobG__vtbl_;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->vtbl == this->nmethod_vtbl/
+{
+ MARK_LINE;
+ this->methodPtr = copyin_ptr(this->start + OFFSET_nmethod_method);
+ this->suffix = '*';
+ this->isMethod = 1;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->vtbl == this->BufferBlob_vtbl/
+{
+ MARK_LINE;
+ this->name = copyin_ptr(this->start + OFFSET_CodeBlob_name);
+}
+
+
+dtrace:helper:ustack:
+/!this->done && this->vtbl == this->BufferBlob_vtbl && this->methodPtr != 0/
+{
+ MARK_LINE;
+ this->klass = copyin_ptr(this->methodPtr);
+ this->isMethod = this->klass == this->Method_vtbl;
+ this->done = !this->isMethod;
+}
+
+dtrace:helper:ustack:
+/!this->done && !this->isMethod/
+{
+ MARK_LINE;
+ this->name = copyin_ptr(this->start + OFFSET_CodeBlob_name);
+ this->result = this->name != 0 ? copyinstr(this->name) : "<CodeBlob>";
+ this->done = 1;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->isMethod/
+{
+ MARK_LINE;
+ this->constMethod = copyin_ptr(this->methodPtr +
+ OFFSET_Method_constMethod);
+
+ this->nameIndex = copyin_uint16(this->constMethod +
+ OFFSET_ConstMethod_name_index);
+
+ this->signatureIndex = copyin_uint16(this->constMethod +
+ OFFSET_ConstMethod_signature_index);
+
+ this->constantPool = copyin_ptr(this->constMethod +
+ OFFSET_ConstMethod_constants);
+
+ this->nameSymbol = copyin_ptr(this->constantPool +
+ this->nameIndex * sizeof (pointer) + SIZE_ConstantPool);
+ /* The symbol is a CPSlot and has lower bit set to indicate metadata */
+ this->nameSymbol &= (~1); /* remove metadata lsb */
+
+ this->nameSymbolLength = copyin_uint16(this->nameSymbol +
+ OFFSET_Symbol_length);
+
+ this->signatureSymbol = copyin_ptr(this->constantPool +
+ this->signatureIndex * sizeof (pointer) + SIZE_ConstantPool);
+ this->signatureSymbol &= (~1); /* remove metadata lsb */
+
+ this->signatureSymbolLength = copyin_uint16(this->signatureSymbol +
+ OFFSET_Symbol_length);
+
+ this->klassPtr = copyin_ptr(this->constantPool +
+ OFFSET_ConstantPool_pool_holder);
+
+ this->klassSymbol = copyin_ptr(this->klassPtr +
+ OFFSET_Klass_name);
+
+ this->klassSymbolLength = copyin_uint16(this->klassSymbol +
+ OFFSET_Symbol_length);
+
+ /*
+ * Enough for three strings, plus the '.', plus the trailing '\0'.
+ */
+ this->result = (char *) alloca(this->klassSymbolLength +
+ this->nameSymbolLength +
+ this->signatureSymbolLength + 2 + 1);
+
+ copyinto(this->klassSymbol + OFFSET_Symbol_body,
+ this->klassSymbolLength, this->result);
+
+ /*
+ * Add the '.' between the class and the name.
+ */
+ this->result[this->klassSymbolLength] = '.';
+
+ copyinto(this->nameSymbol + OFFSET_Symbol_body,
+ this->nameSymbolLength,
+ this->result + this->klassSymbolLength + 1);
+
+ copyinto(this->signatureSymbol + OFFSET_Symbol_body,
+ this->signatureSymbolLength,
+ this->result + this->klassSymbolLength +
+ this->nameSymbolLength + 1);
+
+ /*
+ * Now we need to add a trailing '\0' and possibly a tag character.
+ */
+ this->result[this->klassSymbolLength + 1 +
+ this->nameSymbolLength +
+ this->signatureSymbolLength] = this->suffix;
+ this->result[this->klassSymbolLength + 2 +
+ this->nameSymbolLength +
+ this->signatureSymbolLength] = '\0';
+
+ this->done = 1;
+}
+
+dtrace:helper:ustack:
+/this->done && this->error == (char *) NULL/
+{
+ this->result;
+}
+
+dtrace:helper:ustack:
+/this->done && this->error != (char *) NULL/
+{
+ this->error;
+}
+
+dtrace:helper:ustack:
+/!this->done && this->codecache/
+{
+ this->done = 1;
+ "error";
+}
+
+
+dtrace:helper:ustack:
+/!this->done/
+{
+ NULL;
+}
diff -urN /tmp/a/globals_solaris.hpp b/src/hotspot/os/solaris/globals_solaris.hpp
--- /tmp/a/globals_solaris.hpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/globals_solaris.hpp 2024-09-16 14:41:33.966625738 +0100
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2005, 2020, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_SOLARIS_GLOBALS_SOLARIS_HPP
+#define OS_SOLARIS_GLOBALS_SOLARIS_HPP
+
+//
+// Defines Solaris specific flags. They are not available on other platforms.
+//
+#define RUNTIME_OS_FLAGS(develop, \
+ develop_pd, \
+ product, \
+ product_pd, \
+ range, \
+ constraint)
+
+//
+// Defines Solaris-specific default values. The flags are available on all
+// platforms, but they may have different default values on other platforms.
+//
+define_pd_global(size_t, PreTouchParallelChunkSize, 1 * G);
+define_pd_global(bool, UseLargePages, true);
+define_pd_global(bool, UseLargePagesIndividualAllocation, false);
+define_pd_global(bool, UseOSErrorReporting, false);
+define_pd_global(bool, UseThreadPriorities, false);
+
+#endif // OS_SOLARIS_GLOBALS_SOLARIS_HPP
diff -urN /tmp/a/osThread_solaris.cpp b/src/hotspot/os/solaris/osThread_solaris.cpp
--- /tmp/a/osThread_solaris.cpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/osThread_solaris.cpp 2024-09-16 14:41:33.966705744 +0100
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 1998, 2014, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "memory/allocation.hpp"
+#include "runtime/mutex.hpp"
+#include "runtime/osThread.hpp"
+
+#include <signal.h>
+
+ // ***************************************************************
+ // Platform dependent initialization and cleanup
+ // ***************************************************************
+
+OSThread::OSThread()
+ : _thread_id(0),
+ _caller_sigmask(),
+ _vm_created_thread(false),
+ _startThread_lock(new Monitor(Mutex::event, "startThread_lock")) {
+ sigemptyset(&_caller_sigmask);
+}
+
+OSThread::~OSThread() {
+ delete _startThread_lock;
+}
diff -urN /tmp/a/osThread_solaris.hpp b/src/hotspot/os/solaris/osThread_solaris.hpp
--- /tmp/a/osThread_solaris.hpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/osThread_solaris.hpp 2024-09-16 14:41:33.966795992 +0100
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 1997, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_SOLARIS_OSTHREAD_SOLARIS_HPP
+#define OS_SOLARIS_OSTHREAD_SOLARIS_HPP
+
+#include "runtime/osThreadBase.hpp"
+#include "suspendResume_posix.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+class OSThread : public OSThreadBase {
+ friend class VMStructs;
+
+ typedef thread_t thread_id_t;
+ thread_id_t _thread_id;
+
+ uint _lwp_id; // lwp ID, only used with bound threads
+ int _native_priority; // Saved native priority when starting
+ // a bound thread
+ sigset_t _caller_sigmask; // Caller's signal mask
+ bool _vm_created_thread; // true if the VM created this thread,
+ // false if primary thread or attached thread
+ public:
+ OSThread();
+ ~OSThread();
+
+ uint lwp_id() const { return _lwp_id; }
+ int native_priority() const { return _native_priority; }
+
+ // Set and get state of _vm_created_thread flag
+ void set_vm_created() { _vm_created_thread = true; }
+ bool is_vm_created() { return _vm_created_thread; }
+
+ // Methods to save/restore caller's signal mask
+ sigset_t caller_sigmask() const { return _caller_sigmask; }
+ void set_caller_sigmask(sigset_t sigmask) { _caller_sigmask = sigmask; }
+
+ void set_lwp_id(uint id) { _lwp_id = id; }
+ void set_native_priority(int prio) { _native_priority = prio; }
+
+ thread_id_t thread_id() const {
+ return _thread_id;
+ }
+ void set_thread_id(thread_id_t id) {
+ _thread_id = id;
+ }
+
+ pthread_t pthread_id() const {
+ // Here: same as OSThread::thread_id()
+ return _thread_id;
+ }
+ SuspendResume sr;
+
+ private:
+ void* _siginfo;
+ ucontext_t* _ucontext;
+
+ public:
+ void set_siginfo(void* ptr) { _siginfo = ptr; }
+ ucontext_t* ucontext() const { return _ucontext; }
+ void set_ucontext(ucontext_t* ptr) { _ucontext = ptr; }
+
+ private:
+ Monitor* _startThread_lock; // sync parent and child in thread creation
+
+ public:
+
+ Monitor* startThread_lock() const {
+ return _startThread_lock;
+ }
+
+ // Printing
+ uintx thread_id_for_printing() const override {
+ return (uintx)_thread_id;
+ }
+};
+#endif // OS_SOLARIS_OSTHREAD_SOLARIS_HPP
diff -urN /tmp/a/os_perf_solaris.cpp b/src/hotspot/os/solaris/os_perf_solaris.cpp
--- /tmp/a/os_perf_solaris.cpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/os_perf_solaris.cpp 2024-09-16 14:41:33.967040032 +0100
@@ -0,0 +1,808 @@
+/*
+ * Copyright (c) 2012, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "jvm.h"
+#include "memory/allocation.inline.hpp"
+#include "runtime/os.hpp"
+#include "runtime/os_perf.hpp"
+#include "runtime/vm_version.hpp"
+#include "os_solaris.inline.hpp"
+#include "utilities/globalDefinitions.hpp"
+#include "utilities/macros.hpp"
+
+#include <sys/types.h>
+#include <procfs.h>
+#include <dirent.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <kstat.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/sysinfo.h>
+#include <sys/lwp.h>
+#include <pthread.h>
+#include <time.h>
+#include <utmpx.h>
+#include <dlfcn.h>
+#include <sys/loadavg.h>
+#include <limits.h>
+
+static const double NANOS_PER_SEC = 1000000000.0;
+
+struct CPUPerfTicks {
+ kstat_t* kstat;
+ uint64_t last_idle;
+ uint64_t last_total;
+ double last_ratio;
+};
+
+struct CPUPerfCounters {
+ int nProcs;
+ CPUPerfTicks* jvmTicks;
+ kstat_ctl_t* kstat_ctrl;
+};
+
+static int get_info(const char* path, void* info, size_t s, off_t o) {
+ assert(path != NULL, "path is NULL!");
+ assert(info != NULL, "info is NULL!");
+
+ int fd = -1;
+
+ if ((fd = os::open(path, O_RDONLY, 0)) < 0) {
+ return OS_ERR;
+ }
+ if (pread(fd, info, s, o) != s) {
+ close(fd);
+ return OS_ERR;
+ }
+ close(fd);
+ return OS_OK;
+}
+
+static int get_psinfo2(void* info, size_t s, off_t o) {
+ return get_info("/proc/self/psinfo", info, s, o);
+}
+
+static int get_psinfo(psinfo_t* info) {
+ return get_psinfo2(info, sizeof(*info), 0);
+}
+
+static int read_cpustat(kstat_ctl_t* kstat_ctrl, CPUPerfTicks* load, cpu_stat_t* cpu_stat) {
+ assert(kstat_ctrl != NULL, "kstat_ctrl pointer is NULL!");
+ assert(load != NULL, "load pointer is NULL!");
+ assert(cpu_stat != NULL, "cpu_stat pointer is NULL!");
+
+ if (load->kstat == NULL) {
+ // no handle.
+ return OS_ERR;
+ }
+ if (kstat_read(kstat_ctrl, load->kstat, cpu_stat) == OS_ERR) {
+ // disable handle for this CPU
+ load->kstat = NULL;
+ return OS_ERR;
+ }
+ return OS_OK;
+}
+
+static double get_cpu_load(int which_logical_cpu, CPUPerfCounters* counters) {
+ assert(counters != NULL, "counters pointer is NULL!");
+
+ cpu_stat_t cpu_stat = {0};
+
+ if (which_logical_cpu >= counters->nProcs) {
+ return .0;
+ }
+
+ CPUPerfTicks load = counters->jvmTicks[which_logical_cpu];
+ if (read_cpustat(counters->kstat_ctrl, &load, &cpu_stat) != OS_OK) {
+ return .0;
+ }
+
+ uint_t* usage = cpu_stat.cpu_sysinfo.cpu;
+ if (usage == NULL) {
+ return .0;
+ }
+
+ uint64_t c_idle = usage[CPU_IDLE];
+ uint64_t c_total = 0;
+
+ for (int i = 0; i < CPU_STATES; i++) {
+ c_total += usage[i];
+ }
+
+ // Calculate diff against previous snapshot
+ uint64_t d_idle = c_idle - load.last_idle;
+ uint64_t d_total = c_total - load.last_total;
+
+ /** update if weve moved */
+ if (d_total > 0) {
+ // Save current values for next time around
+ load.last_idle = c_idle;
+ load.last_total = c_total;
+ load.last_ratio = (double) (d_total - d_idle) / d_total;
+ }
+
+ return load.last_ratio;
+}
+
+static int get_boot_time(uint64_t* time) {
+ assert(time != NULL, "time pointer is NULL!");
+ setutxent();
+ for(;;) {
+ struct utmpx* u;
+ if ((u = getutxent()) == NULL) {
+ break;
+ }
+ if (u->ut_type == BOOT_TIME) {
+ *time = u->ut_xtime;
+ endutxent();
+ return OS_OK;
+ }
+ }
+ endutxent();
+ return OS_ERR;
+}
+
+static int get_noof_context_switches(CPUPerfCounters* counters, uint64_t* switches) {
+ assert(switches != NULL, "switches pointer is NULL!");
+ assert(counters != NULL, "counter pointer is NULL!");
+ *switches = 0;
+ uint64_t s = 0;
+
+ // Collect data from all CPUs
+ for (int i = 0; i < counters->nProcs; i++) {
+ cpu_stat_t cpu_stat = {0};
+ CPUPerfTicks load = counters->jvmTicks[i];
+
+ if (read_cpustat(counters->kstat_ctrl, &load, &cpu_stat) == OS_OK) {
+ s += cpu_stat.cpu_sysinfo.pswitch;
+ } else {
+ //fail fast...
+ return OS_ERR;
+ }
+ }
+ *switches = s;
+ return OS_OK;
+}
+
+static int perf_context_switch_rate(CPUPerfCounters* counters, double* rate) {
+ assert(counters != NULL, "counters is NULL!");
+ assert(rate != NULL, "rate pointer is NULL!");
+ static pthread_mutex_t contextSwitchLock = PTHREAD_MUTEX_INITIALIZER;
+ static uint64_t lastTime = 0;
+ static uint64_t lastSwitches = 0;
+ static double lastRate = 0.0;
+
+ uint64_t lt = 0;
+ int res = 0;
+
+ if (lastTime == 0) {
+ uint64_t tmp;
+ if (get_boot_time(&tmp) < 0) {
+ return OS_ERR;
+ }
+ lt = tmp * 1000;
+ }
+
+ res = OS_OK;
+
+ pthread_mutex_lock(&contextSwitchLock);
+ {
+
+ uint64_t sw = 0;
+ clock_t t, d;
+
+ if (lastTime == 0) {
+ lastTime = lt;
+ }
+
+ t = clock();
+ d = t - lastTime;
+
+ if (d == 0) {
+ *rate = lastRate;
+ } else if (get_noof_context_switches(counters, &sw)== OS_OK) {
+ *rate = ((double)(sw - lastSwitches) / d) * 1000;
+ lastRate = *rate;
+ lastSwitches = sw;
+ lastTime = t;
+ } else {
+ *rate = 0.0;
+ res = OS_ERR;
+ }
+ if (*rate < 0.0) {
+ *rate = 0.0;
+ lastRate = 0.0;
+ }
+ }
+ pthread_mutex_unlock(&contextSwitchLock);
+ return res;
+ }
+
+
+
+class CPUPerformanceInterface::CPUPerformance : public CHeapObj<mtInternal> {
+ friend class CPUPerformanceInterface;
+ private:
+ CPUPerfCounters _counters;
+ int cpu_load(int which_logical_cpu, double* cpu_load);
+ int context_switch_rate(double* rate);
+ int cpu_load_total_process(double* cpu_load);
+ int cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad);
+
+ CPUPerformance();
+ ~CPUPerformance();
+ bool initialize();
+};
+
+CPUPerformanceInterface::CPUPerformance::CPUPerformance() {
+ _counters.nProcs = 0;
+ _counters.jvmTicks = NULL;
+ _counters.kstat_ctrl = NULL;
+}
+
+bool CPUPerformanceInterface::CPUPerformance::initialize() {
+ // initialize kstat control structure,
+ _counters.kstat_ctrl = kstat_open();
+ assert(_counters.kstat_ctrl != NULL, "error initializing kstat control structure!");
+
+ if (NULL == _counters.kstat_ctrl) {
+ return false;
+ }
+
+ // Get number of CPU(s)
+ if ((_counters.nProcs = sysconf(_SC_NPROCESSORS_ONLN)) == OS_ERR) {
+ // ignore error?
+ _counters.nProcs = 1;
+ }
+
+ assert(_counters.nProcs > 0, "no CPUs detected in sysconf call!");
+ if (_counters.nProcs == 0) {
+ return false;
+ }
+
+ // Data structure(s) for saving CPU load (one per CPU)
+ size_t array_entry_count = _counters.nProcs;
+ _counters.jvmTicks = NEW_C_HEAP_ARRAY(CPUPerfTicks, array_entry_count, mtInternal);
+ memset(_counters.jvmTicks, 0, array_entry_count * sizeof(*_counters.jvmTicks));
+
+ // Get kstat cpu_stat counters for every CPU
+ // loop over kstat to find our cpu_stat(s)
+ int i = 0;
+ for (kstat_t* kstat = _counters.kstat_ctrl->kc_chain; kstat != NULL; kstat = kstat->ks_next) {
+ if (strncmp(kstat->ks_module, "cpu_stat", 8) == 0) {
+ if (kstat_read(_counters.kstat_ctrl, kstat, NULL) == OS_ERR) {
+ continue;
+ }
+ if (i == _counters.nProcs) {
+ // more cpu_stats than reported CPUs
+ break;
+ }
+ _counters.jvmTicks[i++].kstat = kstat;
+ }
+ }
+ return true;
+}
+
+CPUPerformanceInterface::CPUPerformance::~CPUPerformance() {
+ FREE_C_HEAP_ARRAY(char, _counters.jvmTicks);
+ if (_counters.kstat_ctrl != NULL) {
+ kstat_close(_counters.kstat_ctrl);
+ }
+}
+
+int CPUPerformanceInterface::CPUPerformance::cpu_load(int which_logical_cpu, double* cpu_load) {
+ assert(cpu_load != NULL, "cpu_load pointer is NULL!");
+ double t = .0;
+ if (-1 == which_logical_cpu) {
+ for (int i = 0; i < _counters.nProcs; i++) {
+ t += get_cpu_load(i, &_counters);
+ }
+ // Cap total systemload to 1.0
+ t = MIN2<double>((t / _counters.nProcs), 1.0);
+ } else {
+ t = MIN2<double>(get_cpu_load(which_logical_cpu, &_counters), 1.0);
+ }
+
+ *cpu_load = t;
+ return OS_OK;
+}
+
+int CPUPerformanceInterface::CPUPerformance::cpu_load_total_process(double* cpu_load) {
+ assert(cpu_load != NULL, "cpu_load pointer is NULL!");
+
+ psinfo_t info;
+
+ // Get the percentage of "recent cpu usage" from all the lwp:s in the JVM:s
+ // process. This is returned as a value between 0.0 and 1.0 multiplied by 0x8000.
+ if (get_psinfo2(&info.pr_pctcpu, sizeof(info.pr_pctcpu), offsetof(psinfo_t, pr_pctcpu)) != 0) {
+ *cpu_load = 0.0;
+ return OS_ERR;
+ }
+ *cpu_load = (double) info.pr_pctcpu / 0x8000;
+ return OS_OK;
+}
+
+int CPUPerformanceInterface::CPUPerformance::cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad) {
+ assert(pjvmUserLoad != NULL, "pjvmUserLoad not inited");
+ assert(pjvmKernelLoad != NULL, "pjvmKernelLoad not inited");
+ assert(psystemTotalLoad != NULL, "psystemTotalLoad not inited");
+
+ static uint64_t lastTime;
+ static uint64_t lastUser, lastKernel;
+ static double lastUserRes, lastKernelRes;
+
+ pstatus_t pss;
+ psinfo_t info;
+
+ *pjvmKernelLoad = *pjvmUserLoad = *psystemTotalLoad = 0;
+ if (get_info("/proc/self/status", &pss.pr_utime, sizeof(timestruc_t)*2, offsetof(pstatus_t, pr_utime)) != 0) {
+ return OS_ERR;
+ }
+
+ if (get_psinfo(&info) != 0) {
+ return OS_ERR;
+ }
+
+ // get the total time in user, kernel and total time
+ // check ratios for 'lately' and multiply the 'recent load'.
+ uint64_t time = (info.pr_time.tv_sec * NANOS_PER_SEC) + info.pr_time.tv_nsec;
+ uint64_t user = (pss.pr_utime.tv_sec * NANOS_PER_SEC) + pss.pr_utime.tv_nsec;
+ uint64_t kernel = (pss.pr_stime.tv_sec * NANOS_PER_SEC) + pss.pr_stime.tv_nsec;
+ uint64_t diff = time - lastTime;
+ double load = (double) info.pr_pctcpu / 0x8000;
+
+ if (diff > 0) {
+ lastUserRes = (load * (user - lastUser)) / diff;
+ lastKernelRes = (load * (kernel - lastKernel)) / diff;
+
+ // BUG9182835 - patch for clamping these values to sane ones.
+ lastUserRes = MIN2<double>(1, lastUserRes);
+ lastUserRes = MAX2<double>(0, lastUserRes);
+ lastKernelRes = MIN2<double>(1, lastKernelRes);
+ lastKernelRes = MAX2<double>(0, lastKernelRes);
+ }
+
+ double t = .0;
+ cpu_load(-1, &t);
+ // clamp at user+system and 1.0
+ if (lastUserRes + lastKernelRes > t) {
+ t = MIN2<double>(lastUserRes + lastKernelRes, 1.0);
+ }
+
+ *pjvmUserLoad = lastUserRes;
+ *pjvmKernelLoad = lastKernelRes;
+ *psystemTotalLoad = t;
+
+ lastTime = time;
+ lastUser = user;
+ lastKernel = kernel;
+
+ return OS_OK;
+}
+
+int CPUPerformanceInterface::CPUPerformance::context_switch_rate(double* rate) {
+ return perf_context_switch_rate(&_counters, rate);
+}
+
+CPUPerformanceInterface::CPUPerformanceInterface() {
+ _impl = NULL;
+}
+
+bool CPUPerformanceInterface::initialize() {
+ _impl = new CPUPerformanceInterface::CPUPerformance();
+ return _impl->initialize();
+}
+
+CPUPerformanceInterface::~CPUPerformanceInterface(void) {
+ if (_impl != NULL) {
+ delete _impl;
+ }
+}
+
+int CPUPerformanceInterface::cpu_load(int which_logical_cpu, double* cpu_load) const {
+ return _impl->cpu_load(which_logical_cpu, cpu_load);
+}
+
+int CPUPerformanceInterface::cpu_load_total_process(double* cpu_load) const {
+ return _impl->cpu_load_total_process(cpu_load);
+}
+
+int CPUPerformanceInterface::cpu_loads_process(double* pjvmUserLoad, double* pjvmKernelLoad, double* psystemTotalLoad) const {
+ return _impl->cpu_loads_process(pjvmUserLoad, pjvmKernelLoad, psystemTotalLoad);
+}
+
+int CPUPerformanceInterface::context_switch_rate(double* rate) const {
+ return _impl->context_switch_rate(rate);
+}
+
+class SystemProcessInterface::SystemProcesses : public CHeapObj<mtInternal> {
+ friend class SystemProcessInterface;
+ private:
+ class ProcessIterator : public CHeapObj<mtInternal> {
+ friend class SystemProcessInterface::SystemProcesses;
+ private:
+ DIR* _dir;
+ struct dirent* _entry;
+ bool _valid;
+
+ ProcessIterator();
+ ~ProcessIterator();
+ bool initialize();
+
+ bool is_valid() const { return _valid; }
+ bool is_valid_entry(struct dirent* const entry) const;
+ bool is_dir(const char* const name) const;
+ char* allocate_string(const char* const str) const;
+ int current(SystemProcess* const process_info);
+ int next_process();
+ };
+
+ ProcessIterator* _iterator;
+ SystemProcesses();
+ bool initialize();
+ ~SystemProcesses();
+
+ //information about system processes
+ int system_processes(SystemProcess** system_processes, int* no_of_sys_processes) const;
+};
+
+bool SystemProcessInterface::SystemProcesses::ProcessIterator::is_dir(const char* name) const {
+ struct stat64 mystat;
+ int ret_val = 0;
+
+ ret_val = ::stat64(name, &mystat);
+
+ if (ret_val < 0) {
+ return false;
+ }
+ ret_val = S_ISDIR(mystat.st_mode);
+ return ret_val > 0;
+}
+
+// if it has a numeric name, is a directory and has a 'psinfo' file in it
+bool SystemProcessInterface::SystemProcesses::ProcessIterator::is_valid_entry(struct dirent* entry) const {
+ // ignore the "." and ".." directories
+ if ((strcmp(entry->d_name, ".") == 0) ||
+ (strcmp(entry->d_name, "..") == 0)) {
+ return false;
+ }
+
+ char buffer[PATH_MAX] = {0};
+ uint64_t size = 0;
+ bool result = false;
+ FILE *fp = NULL;
+
+ if (atoi(entry->d_name) != 0) {
+ jio_snprintf(buffer, PATH_MAX, "/proc/%s", entry->d_name);
+
+ if (is_dir(buffer)) {
+ memset(buffer, 0, PATH_MAX);
+ jio_snprintf(buffer, PATH_MAX, "/proc/%s/psinfo", entry->d_name);
+ if ((fp = fopen(buffer, "r")) != NULL) {
+ int nread = 0;
+ psinfo_t psinfo_data;
+ if ((nread = fread(&psinfo_data, 1, sizeof(psinfo_t), fp)) != -1) {
+ // only considering system process owned by root
+ if (psinfo_data.pr_uid == 0) {
+ result = true;
+ }
+ }
+ }
+ }
+ }
+
+ if (fp != NULL) {
+ fclose(fp);
+ }
+
+ return result;
+}
+
+char* SystemProcessInterface::SystemProcesses::ProcessIterator::allocate_string(const char* str) const {
+ if (str != NULL) {
+ return os::strdup_check_oom(str, mtInternal);
+ }
+ return NULL;
+}
+
+int SystemProcessInterface::SystemProcesses::ProcessIterator::current(SystemProcess* process_info) {
+ if (!is_valid()) {
+ return OS_ERR;
+ }
+
+ char psinfo_path[PATH_MAX] = {0};
+ jio_snprintf(psinfo_path, PATH_MAX, "/proc/%s/psinfo", _entry->d_name);
+
+ FILE *fp = NULL;
+ if ((fp = fopen(psinfo_path, "r")) == NULL) {
+ return OS_ERR;
+ }
+
+ int nread = 0;
+ psinfo_t psinfo_data;
+ if ((nread = fread(&psinfo_data, 1, sizeof(psinfo_t), fp)) == -1) {
+ fclose(fp);
+ return OS_ERR;
+ }
+
+ char *exe_path = NULL;
+ if ((psinfo_data.pr_fname != NULL) &&
+ (psinfo_data.pr_psargs != NULL)) {
+ char *path_substring = strstr(psinfo_data.pr_psargs, psinfo_data.pr_fname);
+ if (path_substring != NULL) {
+ int len = path_substring - psinfo_data.pr_psargs;
+ exe_path = NEW_C_HEAP_ARRAY(char, len+1, mtInternal);
+ jio_snprintf(exe_path, len, "%s", psinfo_data.pr_psargs);
+ exe_path[len] = '\0';
+ }
+ }
+
+ process_info->set_pid(atoi(_entry->d_name));
+ process_info->set_name(allocate_string(psinfo_data.pr_fname));
+ process_info->set_path(allocate_string(exe_path));
+ process_info->set_command_line(allocate_string(psinfo_data.pr_psargs));
+
+ if (exe_path != NULL) {
+ FREE_C_HEAP_ARRAY(char, exe_path);
+ }
+
+ if (fp != NULL) {
+ fclose(fp);
+ }
+
+ return OS_OK;
+}
+
+int SystemProcessInterface::SystemProcesses::ProcessIterator::next_process() {
+ if (!is_valid()) {
+ return OS_ERR;
+ }
+
+ do {
+ _entry = os::readdir(_dir);
+ if (_entry == NULL) {
+ // Error or reached end. Could use errno to distinguish those cases.
+ _valid = false;
+ return OS_ERR;
+ }
+ } while(!is_valid_entry(_entry));
+
+ _valid = true;
+ return OS_OK;
+}
+
+SystemProcessInterface::SystemProcesses::ProcessIterator::ProcessIterator() {
+ _dir = NULL;
+ _entry = NULL;
+ _valid = false;
+}
+
+bool SystemProcessInterface::SystemProcesses::ProcessIterator::initialize() {
+ _dir = os::opendir("/proc");
+ _entry = NULL;
+ _valid = true;
+ next_process();
+
+ return true;
+}
+
+SystemProcessInterface::SystemProcesses::ProcessIterator::~ProcessIterator() {
+ if (_dir != NULL) {
+ os::closedir(_dir);
+ }
+}
+
+SystemProcessInterface::SystemProcesses::SystemProcesses() {
+ _iterator = NULL;
+}
+
+bool SystemProcessInterface::SystemProcesses::initialize() {
+ _iterator = new SystemProcessInterface::SystemProcesses::ProcessIterator();
+ return _iterator->initialize();
+}
+
+SystemProcessInterface::SystemProcesses::~SystemProcesses() {
+ if (_iterator != NULL) {
+ delete _iterator;
+ }
+}
+
+int SystemProcessInterface::SystemProcesses::system_processes(SystemProcess** system_processes, int* no_of_sys_processes) const {
+ assert(system_processes != NULL, "system_processes pointer is NULL!");
+ assert(no_of_sys_processes != NULL, "system_processes counter pointer is NULL!");
+ assert(_iterator != NULL, "iterator is NULL!");
+
+ // initialize pointers
+ *no_of_sys_processes = 0;
+ *system_processes = NULL;
+
+ while (_iterator->is_valid()) {
+ SystemProcess* tmp = new SystemProcess();
+ _iterator->current(tmp);
+
+ //if already existing head
+ if (*system_processes != NULL) {
+ //move "first to second"
+ tmp->set_next(*system_processes);
+ }
+ // new head
+ *system_processes = tmp;
+ // increment
+ (*no_of_sys_processes)++;
+ // step forward
+ _iterator->next_process();
+ }
+ return OS_OK;
+}
+
+int SystemProcessInterface::system_processes(SystemProcess** system_procs, int* no_of_sys_processes) const {
+ return _impl->system_processes(system_procs, no_of_sys_processes);
+}
+
+SystemProcessInterface::SystemProcessInterface() {
+ _impl = NULL;
+}
+
+bool SystemProcessInterface::initialize() {
+ _impl = new SystemProcessInterface::SystemProcesses();
+ return _impl->initialize();
+
+}
+
+SystemProcessInterface::~SystemProcessInterface() {
+ if (_impl != NULL) {
+ delete _impl;
+ }
+}
+
+CPUInformationInterface::CPUInformationInterface() {
+ _cpu_info = NULL;
+}
+
+bool CPUInformationInterface::initialize() {
+ _cpu_info = new CPUInformation();
+ VM_Version::initialize_cpu_information();
+ _cpu_info->set_number_of_hardware_threads(VM_Version::number_of_threads());
+ _cpu_info->set_number_of_cores(VM_Version::number_of_cores());
+ _cpu_info->set_number_of_sockets(VM_Version::number_of_sockets());
+ _cpu_info->set_cpu_name(VM_Version::cpu_name());
+ _cpu_info->set_cpu_description(VM_Version::cpu_description());
+ return true;
+}
+
+CPUInformationInterface::~CPUInformationInterface() {
+ if (_cpu_info != NULL) {
+ if (_cpu_info->cpu_name() != NULL) {
+ const char* cpu_name = _cpu_info->cpu_name();
+ FREE_C_HEAP_ARRAY(char, cpu_name);
+ _cpu_info->set_cpu_name(NULL);
+ }
+ if (_cpu_info->cpu_description() != NULL) {
+ const char* cpu_desc = _cpu_info->cpu_description();
+ FREE_C_HEAP_ARRAY(char, cpu_desc);
+ _cpu_info->set_cpu_description(NULL);
+ }
+ delete _cpu_info;
+ }
+}
+
+int CPUInformationInterface::cpu_information(CPUInformation& cpu_info) {
+ if (_cpu_info == NULL) {
+ return OS_ERR;
+ }
+
+ cpu_info = *_cpu_info; // shallow copy assignment
+ return OS_OK;
+}
+
+class NetworkPerformanceInterface::NetworkPerformance : public CHeapObj<mtInternal> {
+ friend class NetworkPerformanceInterface;
+ private:
+ NetworkPerformance();
+ NONCOPYABLE(NetworkPerformance);
+ bool initialize();
+ ~NetworkPerformance();
+ int network_utilization(NetworkInterface** network_interfaces) const;
+};
+
+NetworkPerformanceInterface::NetworkPerformance::NetworkPerformance() {
+
+}
+
+bool NetworkPerformanceInterface::NetworkPerformance::initialize() {
+ return true;
+}
+
+NetworkPerformanceInterface::NetworkPerformance::~NetworkPerformance() {
+
+}
+
+int NetworkPerformanceInterface::NetworkPerformance::network_utilization(NetworkInterface** network_interfaces) const
+{
+ kstat_ctl_t* ctl = kstat_open();
+ if (ctl == NULL) {
+ return OS_ERR;
+ }
+
+ NetworkInterface* ret = NULL;
+ for (kstat_t* k = ctl->kc_chain; k != NULL; k = k->ks_next) {
+ if (strcmp(k->ks_class, "net") != 0) {
+ continue;
+ }
+ if (strcmp(k->ks_module, "link") != 0) {
+ continue;
+ }
+
+ if (kstat_read(ctl, k, NULL) == -1) {
+ return OS_ERR;
+ }
+
+ uint64_t bytes_in = UINT64_MAX;
+ uint64_t bytes_out = UINT64_MAX;
+ for (unsigned int i = 0; i < k->ks_ndata; ++i) {
+ kstat_named_t* data = &reinterpret_cast<kstat_named_t*>(k->ks_data)[i];
+ if (strcmp(data->name, "rbytes64") == 0) {
+ bytes_in = data->value.ui64;
+ }
+ else if (strcmp(data->name, "obytes64") == 0) {
+ bytes_out = data->value.ui64;
+ }
+ }
+
+ if ((bytes_in != UINT64_MAX) && (bytes_out != UINT64_MAX)) {
+ NetworkInterface* cur = new NetworkInterface(k->ks_name, bytes_in, bytes_out, ret);
+ ret = cur;
+ }
+ }
+
+ kstat_close(ctl);
+ *network_interfaces = ret;
+
+ return OS_OK;
+}
+
+NetworkPerformanceInterface::NetworkPerformanceInterface() {
+ _impl = NULL;
+}
+
+NetworkPerformanceInterface::~NetworkPerformanceInterface() {
+ if (_impl != NULL) {
+ delete _impl;
+ }
+}
+
+bool NetworkPerformanceInterface::initialize() {
+ _impl = new NetworkPerformanceInterface::NetworkPerformance();
+ return _impl->initialize();
+}
+
+int NetworkPerformanceInterface::network_utilization(NetworkInterface** network_interfaces) const {
+ return _impl->network_utilization(network_interfaces);
+}
diff -urN /tmp/a/os_solaris.cpp b/src/hotspot/os/solaris/os_solaris.cpp
--- /tmp/a/os_solaris.cpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/os_solaris.cpp 2024-09-16 14:41:33.968071187 +0100
@@ -0,0 +1,2937 @@
+/*
+ * Copyright (c) 1997, 2020, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+// no precompiled headers
+#include "jvm.h"
+#include "classfile/classLoader.hpp"
+#include "classfile/systemDictionary.hpp"
+#include "classfile/vmSymbols.hpp"
+#include "code/vtableStubs.hpp"
+#include "compiler/compileBroker.hpp"
+#include "compiler/disassembler.hpp"
+#include "interpreter/interpreter.hpp"
+#include "jvmtifiles/jvmti.h"
+#include "logging/log.hpp"
+#include "logging/logStream.hpp"
+#include "memory/allocation.inline.hpp"
+#include "memory/universe.hpp"
+#include "oops/oop.inline.hpp"
+#include "os_solaris.inline.hpp"
+#include "prims/jniFastGetField.hpp"
+#include "prims/jvm_misc.hpp"
+#include "runtime/arguments.hpp"
+#include "runtime/atomic.hpp"
+#include "runtime/globals.hpp"
+#include "runtime/globals_extension.hpp"
+#include "runtime/interfaceSupport.inline.hpp"
+#include "runtime/java.hpp"
+#include "runtime/javaCalls.hpp"
+#include "runtime/javaThread.hpp"
+#include "runtime/mutexLocker.hpp"
+#include "runtime/objectMonitor.hpp"
+#include "runtime/osInfo.hpp"
+#include "runtime/orderAccess.hpp"
+#include "runtime/osThread.hpp"
+#include "runtime/park.hpp"
+#include "runtime/perfMemory.hpp"
+#include "runtime/sharedRuntime.hpp"
+#include "runtime/statSampler.hpp"
+#include "runtime/stubRoutines.hpp"
+#include "runtime/threadCritical.hpp"
+#include "runtime/threads.hpp"
+#include "runtime/timer.hpp"
+#include "runtime/vm_version.hpp"
+#include "semaphore_posix.hpp"
+#include "services/attachListener.hpp"
+#include "nmt/memTracker.hpp"
+#include "services/runtimeService.hpp"
+#include "signals_posix.hpp"
+#include "utilities/align.hpp"
+#include "utilities/checkedCast.hpp"
+#include "utilities/decoder.hpp"
+#include "utilities/defaultStream.hpp"
+#include "utilities/events.hpp"
+#include "utilities/growableArray.hpp"
+#include "utilities/macros.hpp"
+#include "utilities/vmError.hpp"
+
+// put OS-includes here
+# include <dlfcn.h>
+# include <errno.h>
+# include <exception>
+# include <link.h>
+# include <poll.h>
+# include <pthread.h>
+# include <setjmp.h>
+# include <signal.h>
+# include <stdio.h>
+# include <alloca.h>
+# include <sys/filio.h>
+# include <sys/ipc.h>
+# include <sys/lwp.h>
+# include <sys/machelf.h> // for elf Sym structure used by dladdr1
+# include <sys/mman.h>
+# include <sys/processor.h>
+# include <sys/procset.h>
+# include <sys/pset.h>
+# include <sys/resource.h>
+# include <sys/shm.h>
+# include <sys/socket.h>
+# include <sys/stat.h>
+# include <sys/swap.h> // for swapctl
+# include <sys/systeminfo.h>
+# include <sys/time.h>
+# include <sys/times.h>
+# include <sys/types.h>
+# include <sys/wait.h>
+# include <sys/utsname.h>
+# include <thread.h>
+# include <unistd.h>
+# include <sys/priocntl.h>
+# include <sys/rtpriocntl.h>
+# include <sys/tspriocntl.h>
+# include <sys/iapriocntl.h>
+# include <sys/fxpriocntl.h>
+# include <sys/loadavg.h>
+# include <string.h>
+# include <stdio.h>
+# include <vm/anon.h> // for swap anoninfo
+
+# include <procfs.h>
+
+#define MAX_PATH (2 * K)
+
+// for timer info max values which include all bits
+#define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF)
+
+// Here are some liblgrp types from sys/lgrp_user.h to be able to
+// compile on older systems without this header file.
+
+#ifndef MADV_ACCESS_LWP
+ #define MADV_ACCESS_LWP 7 /* next LWP to access heavily */
+#endif
+#ifndef MADV_ACCESS_MANY
+ #define MADV_ACCESS_MANY 8 /* many processes to access heavily */
+#endif
+
+#ifndef LGRP_RSRC_CPU
+ #define LGRP_RSRC_CPU 0 /* CPU resources */
+#endif
+#ifndef LGRP_RSRC_MEM
+ #define LGRP_RSRC_MEM 1 /* memory resources */
+#endif
+
+// guarded in sys/mman.h
+extern "C" {
+extern int getpagesizes(size_t[], int);
+}
+
+// Values for ThreadPriorityPolicy == 1
+int prio_policy1[CriticalPriority+1] = {
+ -99999, 0, 16, 32, 48, 64,
+ 80, 96, 112, 124, 127, 127 };
+
+// System parameters used internally
+static clock_t clock_tics_per_sec = 100;
+
+// For diagnostics to print a message once. see run_periodic_checks
+static bool check_addr0_done = false;
+
+address os::Solaris::handler_start; // start pc of thr_sighndlrinfo
+address os::Solaris::handler_end; // end pc of thr_sighndlrinfo
+
+address os::Solaris::_main_stack_base = NULL; // 4352906 workaround
+
+os::Solaris::pthread_setname_np_func_t os::Solaris::_pthread_setname_np = NULL;
+
+// "default" initializers for missing libc APIs
+extern "C" {
+ int memcntl(void *, size_t, int, void *, int, int);
+ int meminfo(const uint64_t *, int, const uint_t *, int, uint64_t *, uint_t *);
+}
+
+static inline size_t adjust_stack_size(address base, size_t size) {
+ if ((ssize_t)size < 0) {
+ // 4759953: Compensate for ridiculous stack size.
+ size = max_intx;
+ }
+ if (size > (size_t)base) {
+ // 4812466: Make sure size doesn't allow the stack to wrap the address space.
+ size = (size_t)base;
+ }
+ return size;
+}
+
+static inline stack_t get_stack_info() {
+ stack_t st;
+ int retval = thr_stksegment(&st);
+ st.ss_size = adjust_stack_size((address)st.ss_sp, st.ss_size);
+ assert(retval == 0, "incorrect return value from thr_stksegment");
+ assert((address)&st < (address)st.ss_sp, "Invalid stack base returned");
+ assert((address)&st > (address)st.ss_sp-st.ss_size, "Invalid stack size returned");
+ return st;
+}
+
+bool os::is_primordial_thread(void) {
+ int r = thr_main();
+ guarantee(r == 0 || r == 1, "CR6501650 or CR6493689");
+ return r == 1;
+}
+
+address os::Solaris::current_stack_base() {
+ bool _is_primordial_thread = os::is_primordial_thread();
+
+ // Workaround 4352906, avoid calls to thr_stksegment by
+ // thr_main after the first one (it looks like we trash
+ // some data, causing the value for ss_sp to be incorrect).
+ if (!_is_primordial_thread || os::Solaris::_main_stack_base == NULL) {
+ stack_t st = get_stack_info();
+ if (_is_primordial_thread) {
+ // cache initial value of stack base
+ os::Solaris::_main_stack_base = (address)st.ss_sp;
+ }
+ return (address)st.ss_sp;
+ } else {
+ guarantee(os::Solaris::_main_stack_base != NULL, "Attempt to use null cached stack base");
+ return os::Solaris::_main_stack_base;
+ }
+}
+
+size_t os::Solaris::current_stack_size() {
+ size_t size;
+
+ if (!os::is_primordial_thread()) {
+ size = get_stack_info().ss_size;
+ } else {
+ struct rlimit limits;
+ getrlimit(RLIMIT_STACK, &limits);
+ size = adjust_stack_size(os::Solaris::_main_stack_base, (size_t)limits.rlim_cur);
+ }
+ // base may not be page aligned
+ address base = current_stack_base();
+ address bottom = align_up(base - size, os::vm_page_size());;
+ return (size_t)(base - bottom);
+}
+
+void os::current_stack_base_and_size(address* stack_base, size_t* stack_size) {
+ *stack_base = os::Solaris::current_stack_base();
+ *stack_size = os::Solaris::current_stack_size();
+}
+
+jint os::Solaris::_os_thread_limit = 0;
+volatile jint os::Solaris::_os_thread_count = 0;
+
+julong os::available_memory() {
+ return Solaris::available_memory();
+}
+
+julong os::free_memory() {
+ return Solaris::available_memory();
+}
+
+julong os::Solaris::available_memory() {
+ return (julong)sysconf(_SC_AVPHYS_PAGES) * os::vm_page_size();
+}
+
+julong os::Solaris::_physical_memory = 0;
+
+jlong os::total_swap_space() {
+ struct anoninfo ai;
+ pgcnt_t allocated, reserved, available;
+ int ret = swapctl(SC_AINFO, &ai);
+ if (ret == -1) {
+ return -1;
+ }
+ return (jlong)(ai.ani_max * sysconf(_SC_PAGESIZE));
+}
+
+jlong os::free_swap_space() {
+ struct anoninfo ai;
+ int ret = swapctl(SC_AINFO, &ai);
+ if (ret == -1) {
+ return -1;
+ }
+ return (jlong)(ai.ani_free * sysconf(_SC_PAGESIZE));
+}
+
+julong os::physical_memory() {
+ return Solaris::physical_memory();
+}
+
+size_t os::rss() { return (size_t)0; }
+
+static hrtime_t first_hrtime = 0;
+static const hrtime_t hrtime_hz = 1000*1000*1000;
+static volatile hrtime_t max_hrtime = 0;
+
+
+void os::Solaris::initialize_system_info() {
+ set_processor_count(sysconf(_SC_NPROCESSORS_CONF));
+ _physical_memory = (julong)sysconf(_SC_PHYS_PAGES) *
+ (julong)sysconf(_SC_PAGESIZE);
+}
+
+uint os::processor_id() {
+ const processorid_t id = ::getcpuid();
+ assert(id >= 0 && id < _processor_count, "Invalid processor id");
+ return (uint)id;
+}
+
+int os::active_processor_count() {
+ // User has overridden the number of active processors
+ if (ActiveProcessorCount > 0) {
+ log_trace(os)("active_processor_count: "
+ "active processor count set by user : %d",
+ ActiveProcessorCount);
+ return ActiveProcessorCount;
+ }
+
+ int online_cpus = sysconf(_SC_NPROCESSORS_ONLN);
+ pid_t pid = getpid();
+ psetid_t pset = PS_NONE;
+ // Are we running in a processor set or is there any processor set around?
+ if (pset_bind(PS_QUERY, P_PID, pid, &pset) == 0) {
+ uint_t pset_cpus;
+ // Query the number of cpus available to us.
+ if (pset_info(pset, NULL, &pset_cpus, NULL) == 0) {
+ assert(pset_cpus > 0 && pset_cpus <= online_cpus, "sanity check");
+ return pset_cpus;
+ }
+ }
+ // Otherwise return number of online cpus
+ return online_cpus;
+}
+
+void os::set_native_thread_name(const char *name) {
+ if (Solaris::_pthread_setname_np != NULL) {
+ // Only the first 31 bytes of 'name' are processed by pthread_setname_np
+ // but we explicitly copy into a size-limited buffer to avoid any
+ // possible overflow.
+ char buf[32];
+ snprintf(buf, sizeof(buf), "%s", name);
+ buf[sizeof(buf) - 1] = '\0';
+ Solaris::_pthread_setname_np(pthread_self(), buf);
+ }
+}
+
+void os::init_system_properties_values() {
+ // The next steps are taken in the product version:
+ //
+ // Obtain the JAVA_HOME value from the location of libjvm.so.
+ // This library should be located at:
+ // <JAVA_HOME>/jre/lib/<arch>/{client|server}/libjvm.so.
+ //
+ // If "/jre/lib/" appears at the right place in the path, then we
+ // assume libjvm.so is installed in a JDK and we use this path.
+ //
+ // Otherwise exit with message: "Could not create the Java virtual machine."
+ //
+ // The following extra steps are taken in the debugging version:
+ //
+ // If "/jre/lib/" does NOT appear at the right place in the path
+ // instead of exit check for $JAVA_HOME environment variable.
+ //
+ // If it is defined and we are able to locate $JAVA_HOME/jre/lib/<arch>,
+ // then we append a fake suffix "hotspot/libjvm.so" to this path so
+ // it looks like libjvm.so is installed there
+ // <JAVA_HOME>/jre/lib/<arch>/hotspot/libjvm.so.
+ //
+ // Otherwise exit.
+ //
+ // Important note: if the location of libjvm.so changes this
+ // code needs to be changed accordingly.
+
+// Base path of extensions installed on the system.
+#define SYS_EXT_DIR "/usr/jdk/packages"
+#define EXTENSIONS_DIR "/lib/ext"
+
+ // Buffer that fits several sprintfs.
+ // Note that the space for the colon and the trailing null are provided
+ // by the nulls included by the sizeof operator.
+ const size_t bufsize =
+ MAX3((size_t)MAXPATHLEN, // For dll_dir & friends.
+ sizeof(SYS_EXT_DIR) + sizeof("/lib/"), // invariant ld_library_path
+ (size_t)MAXPATHLEN + sizeof(EXTENSIONS_DIR) + sizeof(SYS_EXT_DIR) + sizeof(EXTENSIONS_DIR)); // extensions dir
+ char *buf = NEW_C_HEAP_ARRAY(char, bufsize, mtInternal);
+
+ // sysclasspath, java_home, dll_dir
+ {
+ char *pslash;
+ os::jvm_path(buf, bufsize);
+
+ // Found the full path to libjvm.so.
+ // Now cut the path to <java_home>/jre if we can.
+ *(strrchr(buf, '/')) = '\0'; // Get rid of /libjvm.so.
+ pslash = strrchr(buf, '/');
+ if (pslash != NULL) {
+ *pslash = '\0'; // Get rid of /{client|server|hotspot}.
+ }
+ Arguments::set_dll_dir(buf);
+
+ if (pslash != NULL) {
+ pslash = strrchr(buf, '/');
+ if (pslash != NULL) {
+ *pslash = '\0'; // Get rid of /lib.
+ }
+ }
+ Arguments::set_java_home(buf);
+ if (!set_boot_path('/', ':')) {
+ vm_exit_during_initialization("Failed setting boot class path.", NULL);
+ }
+ }
+
+ // Where to look for native libraries.
+ {
+ // Use dlinfo() to determine the correct java.library.path.
+ //
+ // If we're launched by the Java launcher, and the user
+ // does not set java.library.path explicitly on the commandline,
+ // the Java launcher sets LD_LIBRARY_PATH for us and unsets
+ // LD_LIBRARY_PATH_32 and LD_LIBRARY_PATH_64. In this case
+ // dlinfo returns LD_LIBRARY_PATH + crle settings (including
+ // /usr/lib), which is exactly what we want.
+ //
+ // If the user does set java.library.path, it completely
+ // overwrites this setting, and always has.
+ //
+ // If we're not launched by the Java launcher, we may
+ // get here with any/all of the LD_LIBRARY_PATH[_32|64]
+ // settings. Again, dlinfo does exactly what we want.
+
+ Dl_serinfo info_sz, *info = &info_sz;
+ Dl_serpath *path;
+ char *library_path;
+ char *common_path = buf;
+
+ // Determine search path count and required buffer size.
+ if (dlinfo(RTLD_SELF, RTLD_DI_SERINFOSIZE, (void *)info) == -1) {
+ FREE_C_HEAP_ARRAY(char, buf);
+ vm_exit_during_initialization("dlinfo SERINFOSIZE request", dlerror());
+ }
+
+ // Allocate new buffer and initialize.
+ info = (Dl_serinfo*)NEW_C_HEAP_ARRAY(char, info_sz.dls_size, mtInternal);
+ info->dls_size = info_sz.dls_size;
+ info->dls_cnt = info_sz.dls_cnt;
+
+ // Obtain search path information.
+ if (dlinfo(RTLD_SELF, RTLD_DI_SERINFO, (void *)info) == -1) {
+ FREE_C_HEAP_ARRAY(char, buf);
+ FREE_C_HEAP_ARRAY(char, info);
+ vm_exit_during_initialization("dlinfo SERINFO request", dlerror());
+ }
+
+ path = &info->dls_serpath[0];
+
+ // Note: Due to a legacy implementation, most of the library path
+ // is set in the launcher. This was to accommodate linking restrictions
+ // on legacy Solaris implementations (which are no longer supported).
+ // Eventually, all the library path setting will be done here.
+ //
+ // However, to prevent the proliferation of improperly built native
+ // libraries, the new path component /usr/jdk/packages is added here.
+
+ // Construct the invariant part of ld_library_path.
+ sprintf(common_path, SYS_EXT_DIR "/lib");
+
+ // Struct size is more than sufficient for the path components obtained
+ // through the dlinfo() call, so only add additional space for the path
+ // components explicitly added here.
+ size_t library_path_size = info->dls_size + strlen(common_path);
+ library_path = NEW_C_HEAP_ARRAY(char, library_path_size, mtInternal);
+ library_path[0] = '\0';
+
+ // Construct the desired Java library path from the linker's library
+ // search path.
+ //
+ // For compatibility, it is optimal that we insert the additional path
+ // components specific to the Java VM after those components specified
+ // in LD_LIBRARY_PATH (if any) but before those added by the ld.so
+ // infrastructure.
+ if (info->dls_cnt == 0) { // Not sure this can happen, but allow for it.
+ strcpy(library_path, common_path);
+ } else {
+ int inserted = 0;
+ uint_t i;
+ for (i = 0; i < info->dls_cnt; i++, path++) {
+ uint_t flags = path->dls_flags & LA_SER_MASK;
+ if (((flags & LA_SER_LIBPATH) == 0) && !inserted) {
+ strcat(library_path, common_path);
+ strcat(library_path, os::path_separator());
+ inserted = 1;
+ }
+ strcat(library_path, path->dls_name);
+ strcat(library_path, os::path_separator());
+ }
+ // Eliminate trailing path separator.
+ library_path[strlen(library_path)-1] = '\0';
+ }
+
+ // happens before argument parsing - can't use a trace flag
+ // tty->print_raw("init_system_properties_values: native lib path: ");
+ // tty->print_raw_cr(library_path);
+
+ // Callee copies into its own buffer.
+ Arguments::set_library_path(library_path);
+
+ FREE_C_HEAP_ARRAY(char, library_path);
+ FREE_C_HEAP_ARRAY(char, info);
+ }
+
+ // Extensions directories.
+ sprintf(buf, "%s" EXTENSIONS_DIR ":" SYS_EXT_DIR EXTENSIONS_DIR, Arguments::get_java_home());
+ Arguments::set_ext_dirs(buf);
+
+ FREE_C_HEAP_ARRAY(char, buf);
+
+#undef SYS_EXT_DIR
+#undef EXTENSIONS_DIR
+}
+
+static thread_t main_thread;
+
+// Thread start routine for all newly created threads
+extern "C" void* thread_native_entry(void* thread_addr) {
+
+ Thread* thread = (Thread*)thread_addr;
+
+ thread->record_stack_base_and_size();
+
+ // Try to randomize the cache line index of hot stack frames.
+ // This helps when threads of the same stack traces evict each other's
+ // cache lines. The threads can be either from the same JVM instance, or
+ // from different JVM instances. The benefit is especially true for
+ // processors with hyperthreading technology.
+ static int counter = 0;
+ int pid = os::current_process_id();
+ alloca(((pid ^ counter++) & 7) * 128);
+
+ int prio;
+
+ thread->initialize_thread_current();
+
+ OSThread* osthr = thread->osthread();
+
+ osthr->set_lwp_id(_lwp_self()); // Store lwp in case we are bound
+
+ log_info(os, thread)("Thread is alive (tid: " UINTX_FORMAT ").",
+ os::current_thread_id());
+
+ if (UseNUMA) {
+ int lgrp_id = os::numa_get_group_id();
+ if (lgrp_id != -1) {
+ thread->set_lgrp_id(lgrp_id);
+ }
+ }
+
+ // Our priority was set when we were created, and stored in the
+ // osthread, but couldn't be passed through to our LWP until now.
+ // So read back the priority and set it again.
+
+ if (osthr->thread_id() != -1) {
+ if (UseThreadPriorities) {
+ int prio = osthr->native_priority();
+ os::set_native_priority(thread, prio);
+ }
+ }
+
+ assert(osthr->get_state() == RUNNABLE, "invalid os thread state");
+
+ // initialize signal mask for this thread
+ PosixSignals::hotspot_sigmask(thread);
+
+ os::Solaris::init_thread_fpu_state();
+
+ thread->call_run();
+
+ // Note: at this point the thread object may already have deleted itself.
+ // Do not dereference it from here on out.
+
+ // One less thread is executing
+ // When the VMThread gets here, the main thread may have already exited
+ // which frees the CodeHeap containing the Atomic::dec code
+ if (thread != VMThread::vm_thread() && VMThread::vm_thread() != NULL) {
+ Atomic::dec(&os::Solaris::_os_thread_count);
+ }
+
+ log_info(os, thread)("Thread finished (tid: " UINTX_FORMAT ").", os::current_thread_id());
+
+ thr_exit(NULL);
+ ShouldNotReachHere();
+
+ return NULL;
+}
+
+static OSThread* create_os_thread(Thread* thread, thread_t thread_id) {
+ // Allocate the OSThread object
+ OSThread* osthread = new OSThread();
+ if (osthread == NULL) return NULL;
+
+ // Store info on the Solaris thread into the OSThread
+ osthread->set_thread_id(thread_id);
+ osthread->set_lwp_id(_lwp_self());
+
+ if (UseNUMA) {
+ int lgrp_id = os::numa_get_group_id();
+ if (lgrp_id != -1) {
+ thread->set_lgrp_id(lgrp_id);
+ }
+ }
+
+ // Initial thread state is INITIALIZED, not SUSPENDED
+ osthread->set_state(INITIALIZED);
+
+ return osthread;
+}
+
+bool os::create_attached_thread(JavaThread* thread) {
+#ifdef ASSERT
+ thread->verify_not_published();
+#endif
+ OSThread* osthread = create_os_thread(thread, thr_self());
+ if (osthread == NULL) {
+ return false;
+ }
+
+ // Initial thread state is RUNNABLE
+ osthread->set_state(RUNNABLE);
+ thread->set_osthread(osthread);
+
+ if (os::is_primordial_thread()) {
+ os::Solaris::correct_stack_boundaries_for_primordial_thread(thread);
+ }
+
+ // initialize signal mask for this thread
+ // and save the caller's signal mask
+ PosixSignals::hotspot_sigmask(thread);
+
+ log_info(os, thread)("Thread attached (tid: " UINTX_FORMAT ").",
+ os::current_thread_id());
+
+ return true;
+}
+
+bool os::create_main_thread(JavaThread* thread) {
+#ifdef ASSERT
+ thread->verify_not_published();
+#endif
+ if (_starting_thread == NULL) {
+ _starting_thread = create_os_thread(thread, main_thread);
+ if (_starting_thread == NULL) {
+ return false;
+ }
+ }
+
+ // The primodial thread is runnable from the start
+ _starting_thread->set_state(RUNNABLE);
+
+ thread->set_osthread(_starting_thread);
+
+ // initialize signal mask for this thread
+ // and save the caller's signal mask
+ PosixSignals::hotspot_sigmask(thread);
+
+ return true;
+}
+
+// Helper function to trace thread attributes, similar to os::Posix::describe_pthread_attr()
+static char* describe_thr_create_attributes(char* buf, size_t buflen,
+ size_t stacksize, long flags) {
+ stringStream ss(buf, buflen);
+ ss.print("stacksize: " SIZE_FORMAT "k, ", stacksize / 1024);
+ ss.print("flags: ");
+ #define PRINT_FLAG(f) if (flags & f) ss.print( #f " ");
+ #define ALL(X) \
+ X(THR_SUSPENDED) \
+ X(THR_DETACHED) \
+ X(THR_BOUND) \
+ X(THR_NEW_LWP) \
+ X(THR_DAEMON)
+ ALL(PRINT_FLAG)
+ #undef ALL
+ #undef PRINT_FLAG
+ return buf;
+}
+
+// return default stack size for thr_type
+size_t os::Posix::default_stack_size(os::ThreadType thr_type) {
+ // default stack size when not specified by caller is 1M (2M for LP64)
+ size_t s = (BytesPerWord >> 2) * K * K;
+ return s;
+}
+
+bool os::create_thread(Thread* thread, ThreadType thr_type,
+ size_t req_stack_size) {
+ // Allocate the OSThread object
+ OSThread* osthread = new OSThread();
+ if (osthread == NULL) {
+ return false;
+ }
+
+ // calculate stack size if it's not specified by caller
+ size_t stack_size = os::Posix::get_initial_stack_size(thr_type, req_stack_size);
+
+ // Initial state is ALLOCATED but not INITIALIZED
+ osthread->set_state(ALLOCATED);
+
+ if (os::Solaris::_os_thread_count > os::Solaris::_os_thread_limit) {
+ // We got lots of threads. Check if we still have some address space left.
+ // Need to be at least 5Mb of unreserved address space. We do check by
+ // trying to reserve some.
+ const size_t VirtualMemoryBangSize = 20*K*K;
+ char* mem = os::reserve_memory(VirtualMemoryBangSize);
+ if (mem == NULL) {
+ delete osthread;
+ return false;
+ } else {
+ // Release the memory again
+ os::release_memory(mem, VirtualMemoryBangSize);
+ }
+ }
+
+ // Setup osthread because the child thread may need it.
+ thread->set_osthread(osthread);
+
+ // Create the Solaris thread
+ thread_t tid = 0;
+ long flags = THR_DETACHED | THR_SUSPENDED;
+ int status;
+
+ // Mark that we don't have an lwp or thread id yet.
+ // In case we attempt to set the priority before the thread starts.
+ osthread->set_lwp_id(-1);
+ osthread->set_thread_id(-1);
+
+ status = thr_create(NULL, stack_size, thread_native_entry, thread, flags, &tid);
+
+ char buf[64];
+ if (status == 0) {
+ log_info(os, thread)("Thread \"%s\" started (tid: " UINTX_FORMAT ", attributes: %s). ",
+ thread->name(), (uintx) tid, describe_thr_create_attributes(buf, sizeof(buf), stack_size, flags));
+ } else {
+ log_warning(os, thread)("Failed to start thread \"%s\" - thr_create failed (%s) for attributes: %s.",
+ thread->name(), os::errno_name(status), describe_thr_create_attributes(buf, sizeof(buf), stack_size, flags));
+ // Log some OS information which might explain why creating the thread failed.
+ log_info(os, thread)("Number of threads approx. running in the VM: %d", Threads::number_of_threads());
+ LogStream st(Log(os, thread)::info());
+ os::Posix::print_rlimit_info(&st);
+ os::print_memory_info(&st);
+ }
+
+ if (status != 0) {
+ thread->set_osthread(NULL);
+ // Need to clean up stuff we've allocated so far
+ delete osthread;
+ return false;
+ }
+
+ Atomic::inc(&os::Solaris::_os_thread_count);
+
+ // Store info on the Solaris thread into the OSThread
+ osthread->set_thread_id(tid);
+
+ // Remember that we created this thread so we can set priority on it
+ osthread->set_vm_created();
+
+ // Most thread types will set an explicit priority before starting the thread,
+ // but for those that don't we need a valid value to read back in thread_native_entry.
+ osthread->set_native_priority(NormPriority);
+
+ // Initial thread state is INITIALIZED, not SUSPENDED
+ osthread->set_state(INITIALIZED);
+
+ // The thread is returned suspended (in state INITIALIZED), and is started higher up in the call chain
+ return true;
+}
+
+// CR 7190089: on Solaris, primordial thread's stack needs adjusting.
+// Without the adjustment, stack size is incorrect if stack is set to unlimited (ulimit -s unlimited).
+void os::Solaris::correct_stack_boundaries_for_primordial_thread(Thread* thr) {
+ assert(is_primordial_thread(), "Call only for primordial thread");
+
+ JavaThread* jt = (JavaThread *)thr;
+ assert(jt != NULL, "Sanity check");
+ size_t stack_size;
+ address base = jt->stack_base();
+ if (Arguments::created_by_java_launcher()) {
+ // Use 2MB to allow for Solaris 7 64 bit mode.
+ stack_size = JavaThread::stack_size_at_create() == 0
+ ? 2048*K : JavaThread::stack_size_at_create();
+
+ // There are rare cases when we may have already used more than
+ // the basic stack size allotment before this method is invoked.
+ // Attempt to allow for a normally sized java_stack.
+ size_t current_stack_offset = (size_t)(base - (address)&stack_size);
+ stack_size += os::align_down_vm_page_size(current_stack_offset);
+ } else {
+ // 6269555: If we were not created by a Java launcher, i.e. if we are
+ // running embedded in a native application, treat the primordial thread
+ // as much like a native attached thread as possible. This means using
+ // the current stack size from thr_stksegment(), unless it is too large
+ // to reliably setup guard pages. A reasonable max size is 8MB.
+ size_t current_size = current_stack_size();
+ // This should never happen, but just in case....
+ if (current_size == 0) current_size = 2 * K * K;
+ stack_size = current_size > (8 * K * K) ? (8 * K * K) : current_size;
+ }
+ address bottom = align_up(base - stack_size, os::vm_page_size());;
+ stack_size = (size_t)(base - bottom);
+
+ assert(stack_size > 0, "Stack size calculation problem");
+
+ if (stack_size > jt->stack_size()) {
+#ifndef PRODUCT
+ struct rlimit limits;
+ getrlimit(RLIMIT_STACK, &limits);
+ size_t size = adjust_stack_size(base, (size_t)limits.rlim_cur);
+ assert(size >= jt->stack_size(), "Stack size problem in main thread");
+#endif
+ tty->print_cr("Stack size of " SIZE_FORMAT " Kb exceeds current limit of " SIZE_FORMAT " Kb.\n"
+ "(Stack sizes are rounded up to a multiple of the system page size.)\n"
+ "See limit(1) to increase the stack size limit.",
+ stack_size / K, jt->stack_size() / K);
+ vm_exit(1);
+ }
+ assert(jt->stack_size() >= stack_size,
+ "Attempt to map more stack than was allocated");
+ jt->set_stack_size(stack_size);
+
+}
+
+
+
+// Free Solaris resources related to the OSThread
+void os::free_thread(OSThread* osthread) {
+ assert(osthread != NULL, "os::free_thread but osthread not set");
+
+ // We are told to free resources of the argument thread,
+ // but we can only really operate on the current thread.
+ assert(Thread::current()->osthread() == osthread,
+ "os::free_thread but not current thread");
+
+ // Restore caller's signal mask
+ sigset_t sigmask = osthread->caller_sigmask();
+ pthread_sigmask(SIG_SETMASK, &sigmask, NULL);
+
+ delete osthread;
+}
+
+void os::pd_start_thread(Thread* thread) {
+ int status = thr_continue(thread->osthread()->thread_id());
+ assert_status(status == 0, status, "thr_continue failed");
+}
+
+
+intx os::current_thread_id() {
+ return (intx)thr_self();
+}
+
+static pid_t _initial_pid = 0;
+
+int os::current_process_id() {
+ return (int)(_initial_pid ? _initial_pid : getpid());
+}
+
+// gethrtime() should be monotonic according to the documentation,
+// but some virtualized platforms are known to break this guarantee.
+// getTimeNanos() must be guaranteed not to move backwards, so we
+// are forced to add a check here.
+inline hrtime_t getTimeNanos() {
+ const hrtime_t now = gethrtime();
+ const hrtime_t prev = max_hrtime;
+ if (now <= prev) {
+ return prev; // same or retrograde time;
+ }
+ const hrtime_t obsv = Atomic::cmpxchg(&max_hrtime, prev, now);
+ assert(obsv >= prev, "invariant"); // Monotonicity
+ // If the CAS succeeded then we're done and return "now".
+ // If the CAS failed and the observed value "obsv" is >= now then
+ // we should return "obsv". If the CAS failed and now > obsv > prv then
+ // some other thread raced this thread and installed a new value, in which case
+ // we could either (a) retry the entire operation, (b) retry trying to install now
+ // or (c) just return obsv. We use (c). No loop is required although in some cases
+ // we might discard a higher "now" value in deference to a slightly lower but freshly
+ // installed obsv value. That's entirely benign -- it admits no new orderings compared
+ // to (a) or (b) -- and greatly reduces coherence traffic.
+ // We might also condition (c) on the magnitude of the delta between obsv and now.
+ // Avoiding excessive CAS operations to hot RW locations is critical.
+ // See https://blogs.oracle.com/dave/entry/cas_and_cache_trivia_invalidate
+ return (prev == obsv) ? now : obsv;
+}
+
+double os::elapsedVTime() {
+ return (double)gethrvtime() / (double)hrtime_hz;
+}
+
+// DLL functions
+
+// This must be hard coded because it's the system's temporary
+// directory not the java application's temp directory, ala java.io.tmpdir.
+const char* os::get_temp_directory() { return "/tmp"; }
+
+// check if addr is inside libjvm.so
+bool os::address_is_in_vm(address addr) {
+ static address libjvm_base_addr;
+ Dl_info dlinfo;
+
+ if (libjvm_base_addr == NULL) {
+ if (dladdr(CAST_FROM_FN_PTR(void *, os::address_is_in_vm), &dlinfo) != 0) {
+ libjvm_base_addr = (address)dlinfo.dli_fbase;
+ }
+ assert(libjvm_base_addr !=NULL, "Cannot obtain base address for libjvm");
+ }
+
+ if (dladdr((void *)addr, &dlinfo) != 0) {
+ if (libjvm_base_addr == (address)dlinfo.dli_fbase) return true;
+ }
+
+ return false;
+}
+
+void os::prepare_native_symbols() {
+}
+
+bool os::dll_address_to_function_name(address addr, char *buf,
+ int buflen, int * offset,
+ bool demangle) {
+ // buf is not optional, but offset is optional
+ assert(buf != NULL, "sanity check");
+
+ Dl_info dlinfo;
+
+#ifdef _LP64
+ Elf64_Sym * info;
+#else
+ Elf32_Sym * info;
+#endif
+ if (dladdr1((void *)addr, &dlinfo, (void **)&info,
+ RTLD_DL_SYMENT) != 0) {
+ // see if we have a matching symbol that covers our address
+ if (dlinfo.dli_saddr != NULL &&
+ (char *)dlinfo.dli_saddr + info->st_size > (char *)addr) {
+ if (dlinfo.dli_sname != NULL) {
+ if (!(demangle && Decoder::demangle(dlinfo.dli_sname, buf, buflen))) {
+ jio_snprintf(buf, buflen, "%s", dlinfo.dli_sname);
+ }
+ if (offset != NULL) *offset = addr - (address)dlinfo.dli_saddr;
+ return true;
+ }
+ }
+ // no matching symbol so try for just file info
+ if (dlinfo.dli_fname != NULL && dlinfo.dli_fbase != NULL) {
+ if (Decoder::decode((address)(addr - (address)dlinfo.dli_fbase),
+ buf, buflen, offset, dlinfo.dli_fname, demangle)) {
+ return true;
+ }
+ }
+ }
+ buf[0] = '\0';
+ if (offset != NULL) *offset = -1;
+ return false;
+}
+
+bool os::dll_address_to_library_name(address addr, char* buf,
+ int buflen, int* offset) {
+ // buf is not optional, but offset is optional
+ assert(buf != NULL, "sanity check");
+
+ Dl_info dlinfo;
+
+ if (dladdr((void*)addr, &dlinfo) != 0) {
+ if (dlinfo.dli_fname != NULL) {
+ jio_snprintf(buf, buflen, "%s", dlinfo.dli_fname);
+ }
+ if (dlinfo.dli_fbase != NULL && offset != NULL) {
+ *offset = addr - (address)dlinfo.dli_fbase;
+ }
+ return true;
+ }
+
+ buf[0] = '\0';
+ if (offset) *offset = -1;
+ return false;
+}
+
+int os::get_loaded_modules_info(os::LoadedModulesCallbackFunc callback, void *param) {
+ Dl_info dli;
+ // Sanity check?
+ if (dladdr(CAST_FROM_FN_PTR(void *, os::get_loaded_modules_info), &dli) == 0 ||
+ dli.dli_fname == NULL) {
+ return 1;
+ }
+
+ void * handle = dlopen(dli.dli_fname, RTLD_LAZY);
+ if (handle == NULL) {
+ return 1;
+ }
+
+ Link_map *map;
+ dlinfo(handle, RTLD_DI_LINKMAP, &map);
+ if (map == NULL) {
+ dlclose(handle);
+ return 1;
+ }
+
+ while (map->l_prev != NULL) {
+ map = map->l_prev;
+ }
+
+ while (map != NULL) {
+ // Iterate through all map entries and call callback with fields of interest
+ if(callback(map->l_name, (address)map->l_addr, (address)0, param)) {
+ dlclose(handle);
+ return 1;
+ }
+ map = map->l_next;
+ }
+
+ dlclose(handle);
+ return 0;
+}
+
+int _print_dll_info_cb(const char * name, address base_address, address top_address, void * param) {
+ outputStream * out = (outputStream *) param;
+ out->print_cr(INTPTR_FORMAT " \t%s", (intptr_t)base_address, name);
+ return 0;
+}
+
+void os::print_dll_info(outputStream * st) {
+ st->print_cr("Dynamic libraries:"); st->flush();
+ if (get_loaded_modules_info(_print_dll_info_cb, (void *)st)) {
+ st->print_cr("Error: Cannot print dynamic libraries.");
+ }
+}
+
+static void change_endianness(Elf32_Half& val) {
+ unsigned char *ptr = (unsigned char *)&val;
+ unsigned char swp = ptr[0];
+ ptr[0] = ptr[1];
+ ptr[1] = swp;
+}
+
+// Loads .dll/.so and
+// in case of error it checks if .dll/.so was built for the
+// same architecture as Hotspot is running on
+
+void * os::dll_load(const char *filename, char *ebuf, int ebuflen) {
+ log_info(os)("attempting shared library load of %s", filename);
+
+ void * result= ::dlopen(filename, RTLD_LAZY);
+ if (result != NULL) {
+ // Successful loading
+ Events::log(NULL, "Loaded shared library %s", filename);
+ log_info(os)("shared library load of %s was successful", filename);
+ return result;
+ }
+
+ Elf32_Ehdr elf_head;
+ const char* error_report = ::dlerror();
+ if (error_report == NULL) {
+ error_report = "dlerror returned no error description";
+ }
+ if (ebuf != NULL && ebuflen > 0) {
+ ::strncpy(ebuf, error_report, ebuflen-1);
+ ebuf[ebuflen-1]='\0';
+ }
+
+ Events::log(NULL, "Loading shared library %s failed, %s", filename, error_report);
+ log_info(os)("shared library load of %s failed, %s", filename, error_report);
+
+ int diag_msg_max_length=ebuflen-strlen(ebuf);
+ char* diag_msg_buf=ebuf+strlen(ebuf);
+
+ if (diag_msg_max_length==0) {
+ // No more space in ebuf for additional diagnostics message
+ return NULL;
+ }
+
+
+ int file_descriptor= ::open(filename, O_RDONLY | O_NONBLOCK);
+
+ if (file_descriptor < 0) {
+ // Can't open library, report dlerror() message
+ return NULL;
+ }
+
+ bool failed_to_read_elf_head=
+ (sizeof(elf_head)!=
+ (::read(file_descriptor, &elf_head,sizeof(elf_head))));
+
+ ::close(file_descriptor);
+ if (failed_to_read_elf_head) {
+ // file i/o error - report dlerror() msg
+ return NULL;
+ }
+
+ if (elf_head.e_ident[EI_DATA] != LITTLE_ENDIAN_ONLY(ELFDATA2LSB) BIG_ENDIAN_ONLY(ELFDATA2MSB)) {
+ // handle invalid/out of range endianness values
+ if (elf_head.e_ident[EI_DATA] == 0 || elf_head.e_ident[EI_DATA] > 2) {
+ return NULL;
+ }
+ change_endianness(elf_head.e_machine);
+ }
+
+ typedef struct {
+ Elf32_Half code; // Actual value as defined in elf.h
+ Elf32_Half compat_class; // Compatibility of archs at VM's sense
+ unsigned char elf_class; // 32 or 64 bit
+ unsigned char endianess; // MSB or LSB
+ char* name; // String representation
+ } arch_t;
+
+ static const arch_t arch_array[]={
+ {EM_386, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
+ {EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
+ {EM_IA_64, EM_IA_64, ELFCLASS64, ELFDATA2LSB, (char*)"IA 64"},
+ {EM_X86_64, EM_X86_64, ELFCLASS64, ELFDATA2LSB, (char*)"AMD 64"},
+ {EM_SPARC, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"},
+ {EM_SPARC32PLUS, EM_SPARC, ELFCLASS32, ELFDATA2MSB, (char*)"Sparc 32"},
+ {EM_SPARCV9, EM_SPARCV9, ELFCLASS64, ELFDATA2MSB, (char*)"Sparc v9 64"},
+ {EM_PPC, EM_PPC, ELFCLASS32, ELFDATA2MSB, (char*)"Power PC 32"},
+ {EM_PPC64, EM_PPC64, ELFCLASS64, ELFDATA2MSB, (char*)"Power PC 64"},
+ {EM_ARM, EM_ARM, ELFCLASS32, ELFDATA2LSB, (char*)"ARM"},
+ // we only support 64 bit z architecture
+ {EM_S390, EM_S390, ELFCLASS64, ELFDATA2MSB, (char*)"IBM System/390"},
+ {EM_AARCH64, EM_AARCH64, ELFCLASS64, ELFDATA2LSB, (char*)"AARCH64"}
+ };
+
+#if (defined IA32)
+ static Elf32_Half running_arch_code=EM_386;
+#elif (defined AMD64)
+ static Elf32_Half running_arch_code=EM_X86_64;
+#elif (defined IA64)
+ static Elf32_Half running_arch_code=EM_IA_64;
+#elif (defined __sparc) && (defined _LP64)
+ static Elf32_Half running_arch_code=EM_SPARCV9;
+#elif (defined __sparc) && (!defined _LP64)
+ static Elf32_Half running_arch_code=EM_SPARC;
+#elif (defined __powerpc64__)
+ static Elf32_Half running_arch_code=EM_PPC64;
+#elif (defined __powerpc__)
+ static Elf32_Half running_arch_code=EM_PPC;
+#elif (defined ARM)
+ static Elf32_Half running_arch_code=EM_ARM;
+#else
+ #error Method os::dll_load requires that one of following is defined:\
+ IA32, AMD64, IA64, __sparc, __powerpc__, ARM, ARM
+#endif
+
+ // Identify compatibility class for VM's architecture and library's architecture
+ // Obtain string descriptions for architectures
+
+ arch_t lib_arch={elf_head.e_machine,0,elf_head.e_ident[EI_CLASS], elf_head.e_ident[EI_DATA], NULL};
+ int running_arch_index=-1;
+
+ for (unsigned int i=0; i < ARRAY_SIZE(arch_array); i++) {
+ if (running_arch_code == arch_array[i].code) {
+ running_arch_index = i;
+ }
+ if (lib_arch.code == arch_array[i].code) {
+ lib_arch.compat_class = arch_array[i].compat_class;
+ lib_arch.name = arch_array[i].name;
+ }
+ }
+
+ assert(running_arch_index != -1,
+ "Didn't find running architecture code (running_arch_code) in arch_array");
+ if (running_arch_index == -1) {
+ // Even though running architecture detection failed
+ // we may still continue with reporting dlerror() message
+ return NULL;
+ }
+
+ if (lib_arch.compat_class != arch_array[running_arch_index].compat_class) {
+ if (lib_arch.name != NULL) {
+ ::snprintf(diag_msg_buf, diag_msg_max_length-1,
+ " (Possible cause: can't load %s .so on a %s platform)",
+ lib_arch.name, arch_array[running_arch_index].name);
+ } else {
+ ::snprintf(diag_msg_buf, diag_msg_max_length-1,
+ " (Possible cause: can't load this .so (machine code=0x%x) on a %s platform)",
+ lib_arch.code, arch_array[running_arch_index].name);
+ }
+ return NULL;
+ }
+
+ if (lib_arch.endianess != arch_array[running_arch_index].endianess) {
+ ::snprintf(diag_msg_buf, diag_msg_max_length-1," (Possible cause: endianness mismatch)");
+ return NULL;
+ }
+
+ // ELF file class/capacity : 0 - invalid, 1 - 32bit, 2 - 64bit
+ if (lib_arch.elf_class > 2 || lib_arch.elf_class < 1) {
+ ::snprintf(diag_msg_buf, diag_msg_max_length-1, " (Possible cause: invalid ELF file class)");
+ return NULL;
+ }
+
+ if (lib_arch.elf_class != arch_array[running_arch_index].elf_class) {
+ ::snprintf(diag_msg_buf, diag_msg_max_length-1,
+ " (Possible cause: architecture word width mismatch, can't load %d-bit .so on a %d-bit platform)",
+ (int) lib_arch.elf_class * 32, arch_array[running_arch_index].elf_class * 32);
+ return NULL;
+ }
+
+ return NULL;
+}
+
+static inline time_t get_mtime(const char* filename) {
+ struct stat st;
+ int ret = os::stat(filename, &st);
+ assert(ret == 0, "failed to stat() file '%s': %s", filename, os::strerror(errno));
+ return st.st_mtime;
+}
+
+int os::compare_file_modified_times(const char* file1, const char* file2) {
+ time_t t1 = get_mtime(file1);
+ time_t t2 = get_mtime(file2);
+ return t1 - t2;
+}
+
+static bool _print_ascii_file(const char* filename, outputStream* st) {
+ int fd = ::open(filename, O_RDONLY);
+ if (fd == -1) {
+ return false;
+ }
+
+ char buf[32];
+ int bytes;
+ while ((bytes = ::read(fd, buf, sizeof(buf))) > 0) {
+ st->print_raw(buf, bytes);
+ }
+
+ ::close(fd);
+
+ return true;
+}
+
+void os::print_os_info_brief(outputStream* st) {
+ os::Solaris::print_distro_info(st);
+
+ os::Posix::print_uname_info(st);
+
+ os::Solaris::print_libversion_info(st);
+}
+
+void os::print_os_info(outputStream* st) {
+ st->print("OS:");
+
+ os::Solaris::print_distro_info(st);
+
+ os::Posix::print_uname_info(st);
+
+ os::Posix::print_uptime_info(st);
+
+ os::Solaris::print_libversion_info(st);
+
+ os::Posix::print_rlimit_info(st);
+
+ os::Posix::print_load_average(st);
+}
+
+void os::Solaris::print_distro_info(outputStream* st) {
+ if (!_print_ascii_file("/etc/release", st)) {
+ st->print("Solaris");
+ }
+ st->cr();
+}
+
+void os::get_summary_os_info(char* buf, size_t buflen) {
+ strncpy(buf, "Solaris", buflen); // default to plain solaris
+ FILE* fp = fopen("/etc/release", "r");
+ if (fp != NULL) {
+ char tmp[256];
+ // Only get the first line and chop out everything but the os name.
+ if (fgets(tmp, sizeof(tmp), fp)) {
+ char* ptr = tmp;
+ // skip past whitespace characters
+ while (*ptr != '\0' && (*ptr == ' ' || *ptr == '\t' || *ptr == '\n')) ptr++;
+ if (*ptr != '\0') {
+ char* nl = strchr(ptr, '\n');
+ if (nl != NULL) *nl = '\0';
+ strncpy(buf, ptr, buflen);
+ }
+ }
+ fclose(fp);
+ }
+}
+
+void os::Solaris::print_libversion_info(outputStream* st) {
+ st->print(" (T2 libthread)");
+ st->cr();
+}
+
+static bool check_addr0(outputStream* st) {
+ jboolean status = false;
+ const int read_chunk = 200;
+ int ret = 0;
+ int nmap = 0;
+ int fd = ::open("/proc/self/map",O_RDONLY);
+ if (fd >= 0) {
+ prmap_t *p = NULL;
+ char *mbuff = (char *) calloc(read_chunk, sizeof(prmap_t));
+ if (NULL == mbuff) {
+ ::close(fd);
+ return status;
+ }
+ while ((ret = ::read(fd, mbuff, read_chunk*sizeof(prmap_t))) > 0) {
+ //check if read() has not read partial data
+ if( 0 != ret % sizeof(prmap_t)){
+ break;
+ }
+ nmap = ret / sizeof(prmap_t);
+ p = (prmap_t *)mbuff;
+ for(int i = 0; i < nmap; i++){
+ if (p->pr_vaddr == 0x0) {
+ st->print("Warning: Address: " PTR_FORMAT ", Size: " SIZE_FORMAT "K, ",p->pr_vaddr, p->pr_size/1024);
+ st->print("Mapped file: %s, ", p->pr_mapname[0] == '\0' ? "None" : p->pr_mapname);
+ st->print("Access: ");
+ st->print("%s",(p->pr_mflags & MA_READ) ? "r" : "-");
+ st->print("%s",(p->pr_mflags & MA_WRITE) ? "w" : "-");
+ st->print("%s",(p->pr_mflags & MA_EXEC) ? "x" : "-");
+ st->cr();
+ status = true;
+ }
+ p++;
+ }
+ }
+ free(mbuff);
+ ::close(fd);
+ }
+ return status;
+}
+
+void os::get_summary_cpu_info(char* buf, size_t buflen) {
+ // Get MHz with system call. We don't seem to already have this.
+ processor_info_t stats;
+ processorid_t id = getcpuid();
+ int clock = 0;
+ if (processor_info(id, &stats) != -1) {
+ clock = stats.pi_clock; // pi_processor_type isn't more informative than below
+ }
+ snprintf(buf, buflen, "64 bit %d MHz", clock);
+}
+
+void os::pd_print_cpu_info(outputStream* st, char* buf, size_t buflen) {
+ // Nothing to do for now.
+}
+
+void os::print_memory_info(outputStream* st) {
+ st->print("Memory:");
+ st->print(" " SIZE_FORMAT "k page", os::vm_page_size()>>10);
+ st->print(", physical " UINT64_FORMAT "k", os::physical_memory()>>10);
+ st->print("(" UINT64_FORMAT "k free)", os::available_memory() >> 10);
+ st->cr();
+ (void) check_addr0(st);
+}
+
+static int Maxsignum = 0;
+
+static char saved_jvm_path[MAXPATHLEN] = { 0 };
+
+// Find the full path to the current module, libjvm.so
+void os::jvm_path(char *buf, jint buflen) {
+ // Error checking.
+ if (buflen < MAXPATHLEN) {
+ assert(false, "must use a large-enough buffer");
+ buf[0] = '\0';
+ return;
+ }
+ // Lazy resolve the path to current module.
+ if (saved_jvm_path[0] != 0) {
+ strcpy(buf, saved_jvm_path);
+ return;
+ }
+
+ Dl_info dlinfo;
+ int ret = dladdr(CAST_FROM_FN_PTR(void *, os::jvm_path), &dlinfo);
+ assert(ret != 0, "cannot locate libjvm");
+ if (ret != 0 && dlinfo.dli_fname != NULL) {
+ if (os::realpath((char *)dlinfo.dli_fname, buf, buflen) == NULL) {
+ return;
+ }
+ } else {
+ buf[0] = '\0';
+ return;
+ }
+
+ if (Arguments::sun_java_launcher_is_altjvm()) {
+ // Support for the java launcher's '-XXaltjvm=<path>' option. Typical
+ // value for buf is "<JAVA_HOME>/jre/lib/<arch>/<vmtype>/libjvm.so".
+ // If "/jre/lib/" appears at the right place in the string, then
+ // assume we are installed in a JDK and we're done. Otherwise, check
+ // for a JAVA_HOME environment variable and fix up the path so it
+ // looks like libjvm.so is installed there (append a fake suffix
+ // hotspot/libjvm.so).
+ const char *p = buf + strlen(buf) - 1;
+ for (int count = 0; p > buf && count < 5; ++count) {
+ for (--p; p > buf && *p != '/'; --p)
+ /* empty */ ;
+ }
+
+ if (strncmp(p, "/jre/lib/", 9) != 0) {
+ // Look for JAVA_HOME in the environment.
+ char* java_home_var = ::getenv("JAVA_HOME");
+ if (java_home_var != NULL && java_home_var[0] != 0) {
+ char* jrelib_p;
+ int len;
+
+ // Check the current module name "libjvm.so".
+ p = strrchr(buf, '/');
+ assert(strstr(p, "/libjvm") == p, "invalid library name");
+
+ if (os::realpath(java_home_var, buf, buflen) == NULL) {
+ return;
+ }
+ // determine if this is a legacy image or modules image
+ // modules image doesn't have "jre" subdirectory
+ len = strlen(buf);
+ assert(len < buflen, "Ran out of buffer space");
+ jrelib_p = buf + len;
+ snprintf(jrelib_p, buflen-len, "/jre/lib");
+ if (0 != access(buf, F_OK)) {
+ snprintf(jrelib_p, buflen-len, "/lib");
+ }
+
+ if (0 == access(buf, F_OK)) {
+ // Use current module name "libjvm.so"
+ len = strlen(buf);
+ snprintf(buf + len, buflen-len, "/hotspot/libjvm.so");
+ } else {
+ // Go back to path of .so
+ if (os::realpath((char *)dlinfo.dli_fname, buf, buflen) == NULL) {
+ return;
+ }
+ }
+ }
+ }
+ }
+
+ strncpy(saved_jvm_path, buf, MAXPATHLEN);
+ saved_jvm_path[MAXPATHLEN - 1] = '\0';
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Virtual Memory
+
+static bool recoverable_mmap_error(int err) {
+ // See if the error is one we can let the caller handle. This
+ // list of errno values comes from the Solaris mmap(2) man page.
+ switch (err) {
+ case EBADF:
+ case EINVAL:
+ case ENOTSUP:
+ // let the caller deal with these errors
+ return true;
+
+ default:
+ // Any remaining errors on this OS can cause our reserved mapping
+ // to be lost. That can cause confusion where different data
+ // structures think they have the same memory mapped. The worst
+ // scenario is if both the VM and a library think they have the
+ // same memory mapped.
+ return false;
+ }
+}
+
+static void warn_fail_commit_memory(char* addr, size_t bytes, bool exec,
+ int err) {
+ warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
+ ", %d) failed; error='%s' (errno=%d)", p2i(addr), bytes, exec,
+ os::strerror(err), err);
+}
+
+static void warn_fail_commit_memory(char* addr, size_t bytes,
+ size_t alignment_hint, bool exec,
+ int err) {
+ warning("INFO: os::commit_memory(" PTR_FORMAT ", " SIZE_FORMAT
+ ", " SIZE_FORMAT ", %d) failed; error='%s' (errno=%d)", p2i(addr),
+ bytes, alignment_hint, exec, os::strerror(err), err);
+}
+
+int os::Solaris::commit_memory_impl(char* addr, size_t bytes, bool exec) {
+ int prot = exec ? PROT_READ|PROT_WRITE|PROT_EXEC : PROT_READ|PROT_WRITE;
+ size_t size = bytes;
+ char *res = Solaris::mmap_chunk(addr, size, MAP_PRIVATE|MAP_FIXED, prot);
+ if (res != NULL) {
+ if (UseNUMAInterleaving) {
+ numa_make_global(addr, bytes);
+ }
+ return 0;
+ } else {
+ ErrnoPreserver ep;
+ log_trace(os, map)("mmap failed: " RANGEFMT " errno=(%s)",
+ RANGEFMTARGS(addr, size),
+ os::strerror(ep.saved_errno()));
+ }
+
+ int err = errno; // save errno from mmap() call in mmap_chunk()
+
+ if (!recoverable_mmap_error(err)) {
+ ErrnoPreserver ep;
+ log_trace(os, map)("mmap failed: " RANGEFMT " errno=(%s)",
+ RANGEFMTARGS(addr, size),
+ os::strerror(ep.saved_errno()));
+ warn_fail_commit_memory(addr, bytes, exec, err);
+ vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, "committing reserved memory.");
+ }
+
+ return err;
+}
+
+bool os::pd_commit_memory(char* addr, size_t bytes, bool exec) {
+ return Solaris::commit_memory_impl(addr, bytes, exec) == 0;
+}
+
+void os::pd_commit_memory_or_exit(char* addr, size_t bytes, bool exec,
+ const char* mesg) {
+ assert(mesg != NULL, "mesg must be specified");
+ int err = os::Solaris::commit_memory_impl(addr, bytes, exec);
+ if (err != 0) {
+ // the caller wants all commit errors to exit with the specified mesg:
+ warn_fail_commit_memory(addr, bytes, exec, err);
+ vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, "%s", mesg);
+ }
+}
+
+size_t os::Solaris::page_size_for_alignment(size_t alignment) {
+ assert(is_aligned(alignment, (size_t) os::vm_page_size()),
+ SIZE_FORMAT " is not aligned to " SIZE_FORMAT,
+ alignment, (size_t) os::vm_page_size());
+
+ const int page_sizes_max = 9;
+ size_t _illumos_page_sizes[page_sizes_max];
+ int n = getpagesizes(_illumos_page_sizes, page_sizes_max);
+ for (int i = 0; _illumos_page_sizes[i] != 0; i++) {
+ if (is_aligned(alignment, _illumos_page_sizes[i])) {
+ return _illumos_page_sizes[i];
+ }
+ }
+
+ return (size_t) os::vm_page_size();
+}
+
+int os::Solaris::commit_memory_impl(char* addr, size_t bytes,
+ size_t alignment_hint, bool exec) {
+ int err = Solaris::commit_memory_impl(addr, bytes, exec);
+ if (err == 0 && UseLargePages && alignment_hint > 0) {
+ assert(is_aligned(bytes, alignment_hint),
+ SIZE_FORMAT " is not aligned to " SIZE_FORMAT, bytes, alignment_hint);
+
+ // The syscall memcntl requires an exact page size (see man memcntl for details).
+ size_t page_size = page_size_for_alignment(alignment_hint);
+ if (page_size > (size_t) os::vm_page_size()) {
+ (void)Solaris::setup_large_pages(addr, bytes, page_size);
+ }
+ }
+ return err;
+}
+
+bool os::pd_commit_memory(char* addr, size_t bytes, size_t alignment_hint,
+ bool exec) {
+ return Solaris::commit_memory_impl(addr, bytes, alignment_hint, exec) == 0;
+}
+
+void os::pd_commit_memory_or_exit(char* addr, size_t bytes,
+ size_t alignment_hint, bool exec,
+ const char* mesg) {
+ assert(mesg != NULL, "mesg must be specified");
+ int err = os::Solaris::commit_memory_impl(addr, bytes, alignment_hint, exec);
+ if (err != 0) {
+ // the caller wants all commit errors to exit with the specified mesg:
+ warn_fail_commit_memory(addr, bytes, alignment_hint, exec, err);
+ vm_exit_out_of_memory(bytes, OOM_MMAP_ERROR, "%s", mesg);
+ }
+}
+
+// Uncommit the pages in a specified region.
+void os::pd_disclaim_memory(char* addr, size_t bytes) {
+ if (posix_madvise(addr, bytes, MADV_FREE) < 0) {
+ debug_only(warning("MADV_FREE failed."));
+ return;
+ }
+}
+
+size_t os::pd_pretouch_memory(void* first, void* last, size_t page_size) {
+ return page_size;
+}
+
+bool os::pd_create_stack_guard_pages(char* addr, size_t size) {
+ return os::commit_memory(addr, size, !ExecMem);
+}
+
+bool os::remove_stack_guard_pages(char* addr, size_t size) {
+ return os::uncommit_memory(addr, size);
+}
+
+// Change the page size in a given range.
+void os::pd_realign_memory(char *addr, size_t bytes, size_t alignment_hint) {
+ assert((intptr_t)addr % alignment_hint == 0, "Address should be aligned.");
+ assert((intptr_t)(addr + bytes) % alignment_hint == 0, "End should be aligned.");
+ if (UseLargePages) {
+ size_t page_size = Solaris::page_size_for_alignment(alignment_hint);
+ if (page_size > (size_t) os::vm_page_size()) {
+ Solaris::setup_large_pages(addr, bytes, page_size);
+ }
+ }
+}
+
+// Tell the OS to make the range local to the first-touching LWP
+void os::numa_make_local(char *addr, size_t bytes, int lgrp_hint) {
+ assert((intptr_t)addr % os::vm_page_size() == 0, "Address should be page-aligned.");
+ if (posix_madvise(addr, bytes, MADV_ACCESS_LWP) < 0) {
+ debug_only(warning("MADV_ACCESS_LWP failed."));
+ }
+}
+
+// Tell the OS that this range would be accessed from different LWPs.
+void os::numa_make_global(char *addr, size_t bytes) {
+ assert((intptr_t)addr % os::vm_page_size() == 0, "Address should be page-aligned.");
+ if (posix_madvise(addr, bytes, MADV_ACCESS_MANY) < 0) {
+ debug_only(warning("MADV_ACCESS_MANY failed."));
+ }
+}
+
+// Get the number of the locality groups.
+size_t os::numa_get_groups_num() {
+ size_t n = Solaris::lgrp_nlgrps(Solaris::lgrp_cookie());
+ return n != -1 ? n : 1;
+}
+
+// Get a list of leaf locality groups. A leaf lgroup is group that
+// doesn't have any children. Typical leaf group is a CPU or a CPU/memory
+// board. An LWP is assigned to one of these groups upon creation.
+size_t os::numa_get_leaf_groups(uint *ids, size_t size) {
+ if ((ids[0] = Solaris::lgrp_root(Solaris::lgrp_cookie())) == -1) {
+ ids[0] = 0;
+ return 1;
+ }
+ int result_size = 0, top = 1, bottom = 0, cur = 0;
+ for (unsigned int k = 0; k < size; k++) {
+ int r = Solaris::lgrp_children(Solaris::lgrp_cookie(), ids[cur],
+ (Solaris::lgrp_id_t*)&ids[top], size - top);
+ if (r == -1) {
+ ids[0] = 0;
+ return 1;
+ }
+ if (!r) {
+ // That's a leaf node.
+ assert(bottom <= cur, "Sanity check");
+ // Check if the node has memory
+ if (Solaris::lgrp_resources(Solaris::lgrp_cookie(), ids[cur],
+ NULL, 0, LGRP_RSRC_MEM) > 0) {
+ ids[bottom++] = ids[cur];
+ }
+ }
+ top += r;
+ cur++;
+ }
+ if (bottom == 0) {
+ // Handle a situation, when the OS reports no memory available.
+ // Assume UMA architecture.
+ ids[0] = 0;
+ return 1;
+ }
+ return bottom;
+}
+
+// Detect the topology change. Typically happens during CPU plugging-unplugging.
+bool os::numa_topology_changed() {
+ int is_stale = Solaris::lgrp_cookie_stale(Solaris::lgrp_cookie());
+ if (is_stale != -1 && is_stale) {
+ Solaris::lgrp_fini(Solaris::lgrp_cookie());
+ Solaris::lgrp_cookie_t c = Solaris::lgrp_init(Solaris::LGRP_VIEW_CALLER);
+ assert(c != 0, "Failure to initialize LGRP API");
+ Solaris::set_lgrp_cookie(c);
+ return true;
+ }
+ return false;
+}
+
+// Get the group id of the current LWP.
+int os::numa_get_group_id() {
+ int lgrp_id = Solaris::lgrp_home(P_LWPID, P_MYID);
+ if (lgrp_id == -1) {
+ return 0;
+ }
+ const int size = os::numa_get_groups_num();
+ int *ids = (int*)alloca(size * sizeof(int));
+
+ // Get the ids of all lgroups with memory; r is the count.
+ int r = Solaris::lgrp_resources(Solaris::lgrp_cookie(), lgrp_id,
+ (Solaris::lgrp_id_t*)ids, size, LGRP_RSRC_MEM);
+ if (r <= 0) {
+ return 0;
+ }
+ return ids[os::random() % r];
+}
+
+int os::numa_get_group_id_for_address(const void* address) {
+ return 0;
+}
+
+bool os::numa_get_group_ids_for_range(const void** addresses, int* lgrp_ids, size_t count) {
+ return false;
+}
+
+bool os::pd_uncommit_memory(char* addr, size_t bytes, bool exec) {
+ size_t size = bytes;
+ // Map uncommitted pages PROT_NONE so we fail early if we touch an
+ // uncommitted page. Otherwise, the read/write might succeed if we
+ // have enough swap space to back the physical page.
+ char *res = Solaris::mmap_chunk(addr, size,
+ MAP_PRIVATE|MAP_FIXED|MAP_NORESERVE,
+ PROT_NONE);
+ if (res == NULL) {
+ ErrnoPreserver ep;
+ log_trace(os, map)("mmap failed: " RANGEFMT " errno=(%s)",
+ RANGEFMTARGS(addr, size),
+ os::strerror(ep.saved_errno()));
+ return false;
+ }
+ return true;
+}
+
+char* os::Solaris::mmap_chunk(char *addr, size_t size, int flags, int prot) {
+ char *b = (char *)mmap(addr, size, prot, flags, os::Solaris::_dev_zero_fd, 0);
+
+ if (b == MAP_FAILED) {
+ return NULL;
+ }
+ return b;
+}
+
+char* os::Solaris::anon_mmap(char* requested_addr, size_t bytes) {
+ char* addr = requested_addr;
+ int flags = MAP_PRIVATE | MAP_NORESERVE;
+
+ // Map uncommitted pages PROT_NONE so we fail early if we touch an
+ // uncommitted page. Otherwise, the read/write might succeed if we
+ // have enough swap space to back the physical page.
+ return mmap_chunk(addr, bytes, flags, PROT_NONE);
+}
+
+char* os::pd_reserve_memory(size_t bytes, bool exec) {
+ char* addr = Solaris::anon_mmap(NULL, bytes);
+
+ return addr;
+}
+
+char* os::pd_attempt_map_memory_to_file_at(char* requested_addr, size_t bytes, int file_desc) {
+ assert(file_desc >= 0, "file_desc is not valid");
+ char* result = pd_attempt_reserve_memory_at(requested_addr, bytes, !ExecMem);
+ if (result != NULL) {
+ if (replace_existing_mapping_with_file_mapping(result, bytes, file_desc) == NULL) {
+ vm_exit_during_initialization(err_msg("Error in mapping Java heap at the given filesystem directory"));
+ }
+ }
+ return result;
+}
+
+// Reserve memory at an arbitrary address, only if that area is
+// available (and not reserved for something else).
+
+char* os::pd_attempt_reserve_memory_at(char* requested_addr, size_t bytes, bool exec) {
+ // Assert only that the size is a multiple of the page size, since
+ // that's all that mmap requires, and since that's all we really know
+ // about at this low abstraction level. If we need higher alignment,
+ // we can either pass an alignment to this method or verify alignment
+ // in one of the methods further up the call chain. See bug 5044738.
+ assert(bytes % os::vm_page_size() == 0, "reserving unexpected size block");
+
+ // Since snv_84, Solaris attempts to honor the address hint - see 5003415.
+ char* addr = Solaris::anon_mmap(requested_addr, bytes);
+
+ volatile int err = errno;
+ if (addr == requested_addr) {
+ return addr;
+ }
+
+ if (addr != NULL) {
+ pd_unmap_memory(addr, bytes);
+ }
+
+ return NULL;
+}
+
+static int anon_munmap(char * addr, size_t size) {
+ if (::munmap(addr, size) != 0) {
+ ErrnoPreserver ep;
+ log_trace(os, map)("munmap failed: " RANGEFMT " errno=(%s)",
+ RANGEFMTARGS(addr, size),
+ os::strerror(ep.saved_errno()));
+ return 0;
+ }
+ return 1;
+}
+
+bool os::pd_release_memory(char* addr, size_t bytes) {
+ size_t size = bytes;
+ return anon_munmap(addr, size);
+}
+
+static bool solaris_mprotect(char* addr, size_t bytes, int prot) {
+ assert(addr == (char*)align_down((uintptr_t)addr, os::vm_page_size()),
+ "addr must be page aligned");
+ Events::log(NULL, "Protecting memory [" INTPTR_FORMAT "," INTPTR_FORMAT "] with protection modes %x", p2i(addr), p2i(addr+bytes), prot);
+ int retVal = mprotect(addr, bytes, prot);
+ return retVal == 0;
+}
+
+// Protect memory (Used to pass readonly pages through
+// JNI GetArray<type>Elements with empty arrays.)
+// Also, used for serialization page and for compressed oops null pointer
+// checking.
+bool os::protect_memory(char* addr, size_t bytes, ProtType prot,
+ bool is_committed) {
+ unsigned int p = 0;
+ switch (prot) {
+ case MEM_PROT_NONE: p = PROT_NONE; break;
+ case MEM_PROT_READ: p = PROT_READ; break;
+ case MEM_PROT_RW: p = PROT_READ|PROT_WRITE; break;
+ case MEM_PROT_RWX: p = PROT_READ|PROT_WRITE|PROT_EXEC; break;
+ default:
+ ShouldNotReachHere();
+ }
+ // is_committed is unused.
+ return solaris_mprotect(addr, bytes, p);
+}
+
+// guard_memory and unguard_memory only happens within stack guard pages.
+// Since ISM pertains only to the heap, guard and unguard memory should not
+/// happen with an ISM region.
+bool os::guard_memory(char* addr, size_t bytes) {
+ return solaris_mprotect(addr, bytes, PROT_NONE);
+}
+
+bool os::unguard_memory(char* addr, size_t bytes) {
+ return solaris_mprotect(addr, bytes, PROT_READ|PROT_WRITE);
+}
+
+// Large page support
+static size_t _large_page_size = 0;
+
+bool os::Solaris::mpss_sanity_check(bool warn, size_t* page_size) {
+ // Find the page sizes supported by the system
+ const int page_sizes_max = 9;
+ size_t _illumos_page_sizes[page_sizes_max];
+ int n = getpagesizes(_illumos_page_sizes, page_sizes_max);
+ assert(n > 0, "illumos bug?");
+
+ if (n == 1) return false; // Only one page size available.
+
+ // Skip sizes larger than 4M (or LargePageSizeInBytes if it was set)
+ const size_t size_limit =
+ FLAG_IS_DEFAULT(LargePageSizeInBytes) ? 4 * M : LargePageSizeInBytes;
+ int beg;
+ for (beg = 0; beg < n; ++beg) {
+ if (_illumos_page_sizes[beg] <= size_limit) {
+ _page_sizes.add(_illumos_page_sizes[beg]);
+ if (_illumos_page_sizes[beg] > *page_size) {
+ *page_size = _illumos_page_sizes[beg];
+ }
+ }
+ }
+ // make sure we add the default
+ _page_sizes.add(os::vm_page_size());
+ return true;
+}
+
+void os::large_page_init() {
+ if (UseLargePages) {
+ // print a warning if any large page related flag is specified on command line
+ bool warn_on_failure = !FLAG_IS_DEFAULT(UseLargePages) ||
+ !FLAG_IS_DEFAULT(LargePageSizeInBytes);
+
+ UseLargePages = Solaris::mpss_sanity_check(warn_on_failure, &_large_page_size);
+ }
+}
+
+bool os::Solaris::is_valid_page_size(size_t bytes) {
+ return _page_sizes.contains(bytes);
+}
+
+bool os::Solaris::setup_large_pages(caddr_t start, size_t bytes, size_t align) {
+ assert(is_valid_page_size(align), SIZE_FORMAT " is not a valid page size", align);
+ assert(is_aligned((void*) start, align),
+ PTR_FORMAT " is not aligned to " SIZE_FORMAT, p2i((void*) start), align);
+ assert(is_aligned(bytes, align),
+ SIZE_FORMAT " is not aligned to " SIZE_FORMAT, bytes, align);
+
+ // Signal to OS that we want large pages for addresses
+ // from addr, addr + bytes
+ struct memcntl_mha mpss_struct;
+ mpss_struct.mha_cmd = MHA_MAPSIZE_VA;
+ mpss_struct.mha_pagesize = align;
+ mpss_struct.mha_flags = 0;
+ // Upon successful completion, memcntl() returns 0
+ if (memcntl(start, bytes, MC_HAT_ADVISE, (caddr_t) &mpss_struct, 0, 0)) {
+ debug_only(warning("Attempt to use MPSS failed."));
+ return false;
+ }
+ return true;
+}
+
+char* os::pd_reserve_memory_special(size_t size, size_t alignment, size_t page_size, char* addr, bool exec) {
+ fatal("os::reserve_memory_special should not be called on Solaris.");
+ return NULL;
+}
+
+bool os::pd_release_memory_special(char* base, size_t bytes) {
+ fatal("os::release_memory_special should not be called on Solaris.");
+ return false;
+}
+
+size_t os::large_page_size() {
+ return _large_page_size;
+}
+
+// MPSS allows application to commit large page memory on demand; with ISM
+// the entire memory region must be allocated as shared memory.
+bool os::can_commit_large_page_memory() {
+ return true;
+}
+
+size_t os::vm_min_address() {
+ return _vm_min_address_default;
+}
+
+// Interface for setting lwp priorities. We are using T2 libthread,
+// which forces the use of bound threads, so all of our threads will
+// be assigned to real lwp's. Using the thr_setprio function is
+// meaningless in this mode so we must adjust the real lwp's priority.
+// The routines below implement the getting and setting of lwp priorities.
+//
+// Note: There are three priority scales used on Solaris. Java priorities
+// which range from 1 to 10, libthread "thr_setprio" scale which range
+// from 0 to 127, and the current scheduling class of the process we
+// are running in. This is typically from -60 to +60.
+// The setting of the lwp priorities is done after a call to thr_setprio
+// so Java priorities are mapped to libthread priorities and we map from
+// the latter to lwp priorities. We don't keep priorities stored in
+// Java priorities since some of our worker threads want to set priorities
+// higher than all Java threads.
+//
+// For related information:
+// (1) man -s 2 priocntl
+// (2) man -s 4 priocntl
+// (3) man dispadmin
+// = librt.so
+// = libthread/common/rtsched.c - thrp_setlwpprio().
+// = ps -cL <pid> ... to validate priority.
+// = sched_get_priority_min and _max
+// pthread_create
+// sched_setparam
+// pthread_setschedparam
+//
+// Assumptions:
+// + We assume that all threads in the process belong to the same
+// scheduling class. IE. a homogeneous process.
+// + Must be root or in IA group to change change "interactive" attribute.
+// Priocntl() will fail silently. The only indication of failure is when
+// we read-back the value and notice that it hasn't changed.
+// + Interactive threads enter the runq at the head, non-interactive at the tail.
+// + For RT, change timeslice as well. Invariant:
+// constant "priority integral"
+// Konst == TimeSlice * (60-Priority)
+// Given a priority, compute appropriate timeslice.
+// + Higher numerical values have higher priority.
+
+// sched class attributes
+typedef struct {
+ int schedPolicy; // classID
+ int maxPrio;
+ int minPrio;
+} SchedInfo;
+
+
+static SchedInfo tsLimits, iaLimits, rtLimits, fxLimits;
+
+#ifdef ASSERT
+static int ReadBackValidate = 1;
+#endif
+static int myClass = 0;
+static int myMin = 0;
+static int myMax = 0;
+static int myCur = 0;
+static bool priocntl_enable = false;
+
+static const int criticalPrio = FXCriticalPriority;
+static int java_MaxPriority_to_os_priority = 0; // Saved mapping
+
+
+// lwp_priocntl_init
+//
+// Try to determine the priority scale for our process.
+//
+// Return errno or 0 if OK.
+//
+static int lwp_priocntl_init() {
+ int rslt;
+ pcinfo_t ClassInfo;
+ pcparms_t ParmInfo;
+ int i;
+
+ if (!UseThreadPriorities) return 0;
+
+ // If ThreadPriorityPolicy is 1, switch tables
+ if (ThreadPriorityPolicy == 1) {
+ for (i = 0; i < CriticalPriority+1; i++)
+ os::java_to_os_priority[i] = prio_policy1[i];
+ }
+ if (UseCriticalJavaThreadPriority) {
+ // MaxPriority always maps to the FX scheduling class and criticalPrio.
+ // See set_native_priority() and set_lwp_class_and_priority().
+ // Save original MaxPriority mapping in case attempt to
+ // use critical priority fails.
+ java_MaxPriority_to_os_priority = os::java_to_os_priority[MaxPriority];
+ // Set negative to distinguish from other priorities
+ os::java_to_os_priority[MaxPriority] = -criticalPrio;
+ }
+
+ // Get IDs for a set of well-known scheduling classes.
+ // TODO-FIXME: GETCLINFO returns the current # of classes in the
+ // the system. We should have a loop that iterates over the
+ // classID values, which are known to be "small" integers.
+
+ strcpy(ClassInfo.pc_clname, "TS");
+ ClassInfo.pc_cid = -1;
+ rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
+ if (rslt < 0) return errno;
+ assert(ClassInfo.pc_cid != -1, "cid for TS class is -1");
+ tsLimits.schedPolicy = ClassInfo.pc_cid;
+ tsLimits.maxPrio = ((tsinfo_t*)ClassInfo.pc_clinfo)->ts_maxupri;
+ tsLimits.minPrio = -tsLimits.maxPrio;
+
+ strcpy(ClassInfo.pc_clname, "IA");
+ ClassInfo.pc_cid = -1;
+ rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
+ if (rslt < 0) return errno;
+ assert(ClassInfo.pc_cid != -1, "cid for IA class is -1");
+ iaLimits.schedPolicy = ClassInfo.pc_cid;
+ iaLimits.maxPrio = ((iainfo_t*)ClassInfo.pc_clinfo)->ia_maxupri;
+ iaLimits.minPrio = -iaLimits.maxPrio;
+
+ strcpy(ClassInfo.pc_clname, "RT");
+ ClassInfo.pc_cid = -1;
+ rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
+ if (rslt < 0) return errno;
+ assert(ClassInfo.pc_cid != -1, "cid for RT class is -1");
+ rtLimits.schedPolicy = ClassInfo.pc_cid;
+ rtLimits.maxPrio = ((rtinfo_t*)ClassInfo.pc_clinfo)->rt_maxpri;
+ rtLimits.minPrio = 0;
+
+ strcpy(ClassInfo.pc_clname, "FX");
+ ClassInfo.pc_cid = -1;
+ rslt = priocntl(P_ALL, 0, PC_GETCID, (caddr_t)&ClassInfo);
+ if (rslt < 0) return errno;
+ assert(ClassInfo.pc_cid != -1, "cid for FX class is -1");
+ fxLimits.schedPolicy = ClassInfo.pc_cid;
+ fxLimits.maxPrio = ((fxinfo_t*)ClassInfo.pc_clinfo)->fx_maxupri;
+ fxLimits.minPrio = 0;
+
+ // Query our "current" scheduling class.
+ // This will normally be IA, TS or, rarely, FX or RT.
+ memset(&ParmInfo, 0, sizeof(ParmInfo));
+ ParmInfo.pc_cid = PC_CLNULL;
+ rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo);
+ if (rslt < 0) return errno;
+ myClass = ParmInfo.pc_cid;
+
+ // We now know our scheduling classId, get specific information
+ // about the class.
+ ClassInfo.pc_cid = myClass;
+ ClassInfo.pc_clname[0] = 0;
+ rslt = priocntl((idtype)0, 0, PC_GETCLINFO, (caddr_t)&ClassInfo);
+ if (rslt < 0) return errno;
+
+ memset(&ParmInfo, 0, sizeof(pcparms_t));
+ ParmInfo.pc_cid = PC_CLNULL;
+ rslt = priocntl(P_PID, P_MYID, PC_GETPARMS, (caddr_t)&ParmInfo);
+ if (rslt < 0) return errno;
+
+ if (ParmInfo.pc_cid == rtLimits.schedPolicy) {
+ myMin = rtLimits.minPrio;
+ myMax = rtLimits.maxPrio;
+ } else if (ParmInfo.pc_cid == iaLimits.schedPolicy) {
+ iaparms_t *iaInfo = (iaparms_t*)ParmInfo.pc_clparms;
+ myMin = iaLimits.minPrio;
+ myMax = iaLimits.maxPrio;
+ myMax = MIN2(myMax, (int)iaInfo->ia_uprilim); // clamp - restrict
+ } else if (ParmInfo.pc_cid == tsLimits.schedPolicy) {
+ tsparms_t *tsInfo = (tsparms_t*)ParmInfo.pc_clparms;
+ myMin = tsLimits.minPrio;
+ myMax = tsLimits.maxPrio;
+ myMax = MIN2(myMax, (int)tsInfo->ts_uprilim); // clamp - restrict
+ } else if (ParmInfo.pc_cid == fxLimits.schedPolicy) {
+ fxparms_t *fxInfo = (fxparms_t*)ParmInfo.pc_clparms;
+ myMin = fxLimits.minPrio;
+ myMax = fxLimits.maxPrio;
+ myMax = MIN2(myMax, (int)fxInfo->fx_uprilim); // clamp - restrict
+ } else {
+ return EINVAL; // no clue, punt
+ }
+
+ priocntl_enable = true; // Enable changing priorities
+ return 0;
+}
+
+#define IAPRI(x) ((iaparms_t *)((x).pc_clparms))
+#define RTPRI(x) ((rtparms_t *)((x).pc_clparms))
+#define TSPRI(x) ((tsparms_t *)((x).pc_clparms))
+#define FXPRI(x) ((fxparms_t *)((x).pc_clparms))
+
+
+// scale_to_lwp_priority
+//
+// Convert from the libthread "thr_setprio" scale to our current
+// lwp scheduling class scale.
+//
+static int scale_to_lwp_priority(int rMin, int rMax, int x) {
+ int v;
+
+ if (x == 127) return rMax; // avoid round-down
+ v = (((x*(rMax-rMin)))/128)+rMin;
+ return v;
+}
+
+
+// set_lwp_class_and_priority
+int set_lwp_class_and_priority(int ThreadID, int lwpid,
+ int newPrio, int new_class, bool scale) {
+ int rslt;
+ int Actual, Expected, prv;
+ pcparms_t ParmInfo; // for GET-SET
+#ifdef ASSERT
+ pcparms_t ReadBack; // for readback
+#endif
+
+ // Set priority via PC_GETPARMS, update, PC_SETPARMS
+ // Query current values.
+ // TODO: accelerate this by eliminating the PC_GETPARMS call.
+ // Cache "pcparms_t" in global ParmCache.
+ // TODO: elide set-to-same-value
+
+ // If something went wrong on init, don't change priorities.
+ if (!priocntl_enable) {
+ return EINVAL;
+ }
+
+ // If lwp hasn't started yet, just return
+ // the _start routine will call us again.
+ if (lwpid <= 0) {
+ return 0;
+ }
+
+ memset(&ParmInfo, 0, sizeof(pcparms_t));
+ ParmInfo.pc_cid = PC_CLNULL;
+ rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ParmInfo);
+ if (rslt < 0) return errno;
+
+ int cur_class = ParmInfo.pc_cid;
+ ParmInfo.pc_cid = (id_t)new_class;
+
+ if (new_class == rtLimits.schedPolicy) {
+ rtparms_t *rtInfo = (rtparms_t*)ParmInfo.pc_clparms;
+ rtInfo->rt_pri = scale ? scale_to_lwp_priority(rtLimits.minPrio,
+ rtLimits.maxPrio, newPrio)
+ : newPrio;
+ rtInfo->rt_tqsecs = RT_NOCHANGE;
+ rtInfo->rt_tqnsecs = RT_NOCHANGE;
+ } else if (new_class == iaLimits.schedPolicy) {
+ iaparms_t* iaInfo = (iaparms_t*)ParmInfo.pc_clparms;
+ int maxClamped = MIN2(iaLimits.maxPrio,
+ cur_class == new_class
+ ? (int)iaInfo->ia_uprilim : iaLimits.maxPrio);
+ iaInfo->ia_upri = scale ? scale_to_lwp_priority(iaLimits.minPrio,
+ maxClamped, newPrio)
+ : newPrio;
+ iaInfo->ia_uprilim = cur_class == new_class
+ ? IA_NOCHANGE : (pri_t)iaLimits.maxPrio;
+ iaInfo->ia_mode = IA_NOCHANGE;
+ } else if (new_class == tsLimits.schedPolicy) {
+ tsparms_t* tsInfo = (tsparms_t*)ParmInfo.pc_clparms;
+ int maxClamped = MIN2(tsLimits.maxPrio,
+ cur_class == new_class
+ ? (int)tsInfo->ts_uprilim : tsLimits.maxPrio);
+ tsInfo->ts_upri = scale ? scale_to_lwp_priority(tsLimits.minPrio,
+ maxClamped, newPrio)
+ : newPrio;
+ tsInfo->ts_uprilim = cur_class == new_class
+ ? TS_NOCHANGE : (pri_t)tsLimits.maxPrio;
+ } else if (new_class == fxLimits.schedPolicy) {
+ fxparms_t* fxInfo = (fxparms_t*)ParmInfo.pc_clparms;
+ int maxClamped = MIN2(fxLimits.maxPrio,
+ cur_class == new_class
+ ? (int)fxInfo->fx_uprilim : fxLimits.maxPrio);
+ fxInfo->fx_upri = scale ? scale_to_lwp_priority(fxLimits.minPrio,
+ maxClamped, newPrio)
+ : newPrio;
+ fxInfo->fx_uprilim = cur_class == new_class
+ ? FX_NOCHANGE : (pri_t)fxLimits.maxPrio;
+ fxInfo->fx_tqsecs = FX_NOCHANGE;
+ fxInfo->fx_tqnsecs = FX_NOCHANGE;
+ } else {
+ return EINVAL; // no clue, punt
+ }
+
+ rslt = priocntl(P_LWPID, lwpid, PC_SETPARMS, (caddr_t)&ParmInfo);
+ if (rslt < 0) return errno;
+
+#ifdef ASSERT
+ // Sanity check: read back what we just attempted to set.
+ // In theory it could have changed in the interim ...
+ //
+ // The priocntl system call is tricky.
+ // Sometimes it'll validate the priority value argument and
+ // return EINVAL if unhappy. At other times it fails silently.
+ // Readbacks are prudent.
+
+ if (!ReadBackValidate) return 0;
+
+ memset(&ReadBack, 0, sizeof(pcparms_t));
+ ReadBack.pc_cid = PC_CLNULL;
+ rslt = priocntl(P_LWPID, lwpid, PC_GETPARMS, (caddr_t)&ReadBack);
+ assert(rslt >= 0, "priocntl failed");
+ Actual = Expected = 0xBAD;
+ assert(ParmInfo.pc_cid == ReadBack.pc_cid, "cid's don't match");
+ if (ParmInfo.pc_cid == rtLimits.schedPolicy) {
+ Actual = RTPRI(ReadBack)->rt_pri;
+ Expected = RTPRI(ParmInfo)->rt_pri;
+ } else if (ParmInfo.pc_cid == iaLimits.schedPolicy) {
+ Actual = IAPRI(ReadBack)->ia_upri;
+ Expected = IAPRI(ParmInfo)->ia_upri;
+ } else if (ParmInfo.pc_cid == tsLimits.schedPolicy) {
+ Actual = TSPRI(ReadBack)->ts_upri;
+ Expected = TSPRI(ParmInfo)->ts_upri;
+ } else if (ParmInfo.pc_cid == fxLimits.schedPolicy) {
+ Actual = FXPRI(ReadBack)->fx_upri;
+ Expected = FXPRI(ParmInfo)->fx_upri;
+ }
+#endif
+
+ return 0;
+}
+
+// Solaris only gives access to 128 real priorities at a time,
+// so we expand Java's ten to fill this range. This would be better
+// if we dynamically adjusted relative priorities.
+//
+// The ThreadPriorityPolicy option allows us to select 2 different
+// priority scales.
+//
+// ThreadPriorityPolicy=0
+// Since the Solaris' default priority is MaximumPriority, we do not
+// set a priority lower than Max unless a priority lower than
+// NormPriority is requested.
+//
+// ThreadPriorityPolicy=1
+// This mode causes the priority table to get filled with
+// linear values. NormPriority gets mapped to 50% of the
+// Maximum priority and so on. This will cause VM threads
+// to get unfair treatment against other Solaris processes
+// which do not explicitly alter their thread priorities.
+
+int os::java_to_os_priority[CriticalPriority + 1] = {
+ -99999, // 0 Entry should never be used
+
+ 0, // 1 MinPriority
+ 32, // 2
+ 64, // 3
+
+ 96, // 4
+ 127, // 5 NormPriority
+ 127, // 6
+
+ 127, // 7
+ 127, // 8
+ 127, // 9 NearMaxPriority
+
+ 127, // 10 MaxPriority
+
+ -criticalPrio // 11 CriticalPriority
+};
+
+OSReturn os::set_native_priority(Thread* thread, int newpri) {
+ OSThread* osthread = thread->osthread();
+
+ // Save requested priority in case the thread hasn't been started
+ osthread->set_native_priority(newpri);
+
+ // Check for critical priority request
+ bool fxcritical = false;
+ if (newpri == -criticalPrio) {
+ fxcritical = true;
+ newpri = criticalPrio;
+ }
+
+ assert(newpri >= MinimumPriority && newpri <= MaximumPriority, "bad priority mapping");
+ if (!UseThreadPriorities) return OS_OK;
+
+ int status = 0;
+
+ if (!fxcritical) {
+ // Use thr_setprio only if we have a priority that thr_setprio understands
+ status = thr_setprio(thread->osthread()->thread_id(), newpri);
+ }
+
+ int lwp_status =
+ set_lwp_class_and_priority(osthread->thread_id(),
+ osthread->lwp_id(),
+ newpri,
+ fxcritical ? fxLimits.schedPolicy : myClass,
+ !fxcritical);
+ if (lwp_status != 0 && fxcritical) {
+ // Try again, this time without changing the scheduling class
+ newpri = java_MaxPriority_to_os_priority;
+ lwp_status = set_lwp_class_and_priority(osthread->thread_id(),
+ osthread->lwp_id(),
+ newpri, myClass, false);
+ }
+ status |= lwp_status;
+ return (status == 0) ? OS_OK : OS_ERR;
+}
+
+
+OSReturn os::get_native_priority(const Thread* const thread,
+ int *priority_ptr) {
+ int p;
+ if (!UseThreadPriorities) {
+ *priority_ptr = NormalPriority;
+ return OS_OK;
+ }
+ int status = thr_getprio(thread->osthread()->thread_id(), &p);
+ if (status != 0) {
+ return OS_ERR;
+ }
+ *priority_ptr = p;
+ return OS_OK;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+// This does not do anything on Solaris. This is basically a hook for being
+// able to use structured exception handling (thread-local exception filters) on, e.g., Win32.
+void os::os_exception_wrapper(java_call_t f, JavaValue* value,
+ const methodHandle& method, JavaCallArguments* args,
+ JavaThread* thread) {
+ f(value, method, args, thread);
+}
+
+void report_error(const char* file_name, int line_no, const char* title,
+ const char* format, ...);
+
+// (Static) wrappers for the liblgrp API
+os::Solaris::lgrp_home_func_t os::Solaris::_lgrp_home;
+os::Solaris::lgrp_init_func_t os::Solaris::_lgrp_init;
+os::Solaris::lgrp_fini_func_t os::Solaris::_lgrp_fini;
+os::Solaris::lgrp_root_func_t os::Solaris::_lgrp_root;
+os::Solaris::lgrp_children_func_t os::Solaris::_lgrp_children;
+os::Solaris::lgrp_resources_func_t os::Solaris::_lgrp_resources;
+os::Solaris::lgrp_nlgrps_func_t os::Solaris::_lgrp_nlgrps;
+os::Solaris::lgrp_cookie_stale_func_t os::Solaris::_lgrp_cookie_stale;
+os::Solaris::lgrp_cookie_t os::Solaris::_lgrp_cookie = 0;
+
+static address resolve_symbol_lazy(const char* name) {
+ address addr = (address) dlsym(RTLD_DEFAULT, name);
+ if (addr == NULL) {
+ // RTLD_DEFAULT was not defined on some early versions of 2.5.1
+ addr = (address) dlsym(RTLD_NEXT, name);
+ }
+ return addr;
+}
+
+static address resolve_symbol(const char* name) {
+ address addr = resolve_symbol_lazy(name);
+ if (addr == NULL) {
+ fatal("resolve_symbol failed (%s)", dlerror());
+ }
+ return addr;
+}
+
+void os::Solaris::libthread_init() {
+ address func = (address)dlsym(RTLD_DEFAULT, "_thr_suspend_allmutators");
+
+ lwp_priocntl_init();
+
+ // RTLD_DEFAULT was not defined on some early versions of 5.5.1
+ if (func == NULL) {
+ func = (address) dlsym(RTLD_NEXT, "_thr_suspend_allmutators");
+ // Guarantee that this VM is running on an new enough OS (5.6 or
+ // later) that it will have a new enough libthread.so.
+ guarantee(func != NULL, "libthread.so is too old.");
+ }
+
+ int size;
+ void (*handler_info_func)(address *, int *);
+ handler_info_func = CAST_TO_FN_PTR(void (*)(address *, int *), resolve_symbol("thr_sighndlrinfo"));
+ handler_info_func(&handler_start, &size);
+ handler_end = handler_start + size;
+}
+
+
+bool os::Solaris::_synchronization_initialized;
+
+void os::Solaris::synchronization_init() {
+ _synchronization_initialized = true;
+}
+
+bool os::Solaris::liblgrp_init() {
+ void *handle = dlopen("liblgrp.so.1", RTLD_LAZY);
+ if (handle != NULL) {
+ os::Solaris::set_lgrp_home(CAST_TO_FN_PTR(lgrp_home_func_t, dlsym(handle, "lgrp_home")));
+ os::Solaris::set_lgrp_init(CAST_TO_FN_PTR(lgrp_init_func_t, dlsym(handle, "lgrp_init")));
+ os::Solaris::set_lgrp_fini(CAST_TO_FN_PTR(lgrp_fini_func_t, dlsym(handle, "lgrp_fini")));
+ os::Solaris::set_lgrp_root(CAST_TO_FN_PTR(lgrp_root_func_t, dlsym(handle, "lgrp_root")));
+ os::Solaris::set_lgrp_children(CAST_TO_FN_PTR(lgrp_children_func_t, dlsym(handle, "lgrp_children")));
+ os::Solaris::set_lgrp_resources(CAST_TO_FN_PTR(lgrp_resources_func_t, dlsym(handle, "lgrp_resources")));
+ os::Solaris::set_lgrp_nlgrps(CAST_TO_FN_PTR(lgrp_nlgrps_func_t, dlsym(handle, "lgrp_nlgrps")));
+ os::Solaris::set_lgrp_cookie_stale(CAST_TO_FN_PTR(lgrp_cookie_stale_func_t,
+ dlsym(handle, "lgrp_cookie_stale")));
+
+ lgrp_cookie_t c = lgrp_init(LGRP_VIEW_CALLER);
+ set_lgrp_cookie(c);
+ return true;
+ }
+ return false;
+}
+
+int os::Solaris::_dev_zero_fd = -1;
+
+// this is called _before_ the global arguments have been parsed
+void os::init(void) {
+ _initial_pid = getpid();
+
+ max_hrtime = first_hrtime = gethrtime();
+
+ init_random(1234567);
+
+ int page_size = sysconf(_SC_PAGESIZE);
+ OSInfo::set_vm_page_size(page_size);
+ OSInfo::set_vm_allocation_granularity(page_size);
+ if (os::vm_page_size() <= 0) {
+ fatal("os_solaris.cpp: os::init: sysconf failed (%s)", os::strerror(errno));
+ }
+ _page_sizes.add(os::vm_page_size());
+
+ Solaris::initialize_system_info();
+
+ int fd = ::open("/dev/zero", O_RDWR);
+ if (fd < 0) {
+ fatal("os::init: cannot open /dev/zero (%s)", os::strerror(errno));
+ } else {
+ Solaris::set_dev_zero_fd(fd);
+
+ // Close on exec, child won't inherit.
+ fcntl(fd, F_SETFD, FD_CLOEXEC);
+ }
+
+ clock_tics_per_sec = CLK_TCK;
+
+ // main_thread points to the thread that created/loaded the JVM.
+ main_thread = thr_self();
+
+ // dynamic lookup of functions that may not be available in our lowest
+ // supported Solaris release
+ void * handle = dlopen("libc.so.1", RTLD_LAZY);
+ if (handle != NULL) {
+ Solaris::_pthread_setname_np = // from 11.3
+ (Solaris::pthread_setname_np_func_t)dlsym(handle, "pthread_setname_np");
+ }
+
+ // Shared Posix initialization
+ os::Posix::init();
+}
+
+// To install functions for atexit system call
+extern "C" {
+ static void perfMemory_exit_helper() {
+ perfMemory_exit();
+ }
+}
+
+// this is called _after_ the global arguments have been parsed
+jint os::init_2(void) {
+ Solaris::libthread_init();
+
+ if (UseNUMA) {
+ if (!Solaris::liblgrp_init()) {
+ FLAG_SET_ERGO(UseNUMA, false);
+ } else {
+ size_t lgrp_limit = os::numa_get_groups_num();
+ uint *lgrp_ids = NEW_C_HEAP_ARRAY(uint, lgrp_limit, mtInternal);
+ size_t lgrp_num = os::numa_get_leaf_groups(lgrp_ids, lgrp_limit);
+ FREE_C_HEAP_ARRAY(uint, lgrp_ids);
+ if (lgrp_num < 2) {
+ // There's only one locality group, disable NUMA
+ UseNUMA = false;
+ }
+ }
+ }
+
+ // When NUMA requested, not-NUMA-aware allocations default to interleaving.
+ if (UseNUMA && !UseNUMAInterleaving) {
+ FLAG_SET_ERGO_IF_DEFAULT(UseNUMAInterleaving, true);
+ }
+
+ if (PosixSignals::init() == JNI_ERR) {
+ return JNI_ERR;
+ }
+
+ // initialize synchronization primitives
+ Solaris::synchronization_init();
+ DEBUG_ONLY(os::set_mutex_init_done();)
+
+ if (MaxFDLimit) {
+ // set the number of file descriptors to max. print out error
+ // if getrlimit/setrlimit fails but continue regardless.
+ struct rlimit nbr_files;
+ int status = getrlimit(RLIMIT_NOFILE, &nbr_files);
+ if (status != 0) {
+ log_info(os)("os::init_2 getrlimit failed: %s", os::strerror(errno));
+ } else {
+ nbr_files.rlim_cur = nbr_files.rlim_max;
+ status = setrlimit(RLIMIT_NOFILE, &nbr_files);
+ if (status != 0) {
+ log_info(os)("os::init_2 setrlimit failed: %s", os::strerror(errno));
+ }
+ }
+ }
+
+ // Calculate theoretical max. size of Threads to guard gainst
+ // artificial out-of-memory situations, where all available address-
+ // space has been reserved by thread stacks. Default stack size is 1Mb.
+ size_t pre_thread_stack_size = (JavaThread::stack_size_at_create()) ?
+ JavaThread::stack_size_at_create() : (1*K*K);
+ assert(pre_thread_stack_size != 0, "Must have a stack");
+ // Solaris has a maximum of 4Gb of user programs. Calculate the thread limit when
+ // we should start doing Virtual Memory banging. Currently when the threads will
+ // have used all but 200Mb of space.
+ size_t max_address_space = ((unsigned int)4 * K * K * K) - (200 * K * K);
+ Solaris::_os_thread_limit = max_address_space / pre_thread_stack_size;
+
+ // at-exit methods are called in the reverse order of their registration.
+ // In Solaris 7 and earlier, atexit functions are called on return from
+ // main or as a result of a call to exit(3C). There can be only 32 of
+ // these functions registered and atexit() does not set errno. In Solaris
+ // 8 and later, there is no limit to the number of functions registered
+ // and atexit() sets errno. In addition, in Solaris 8 and later, atexit
+ // functions are called upon dlclose(3DL) in addition to return from main
+ // and exit(3C).
+
+ if (PerfAllowAtExitRegistration) {
+ // only register atexit functions if PerfAllowAtExitRegistration is set.
+ // atexit functions can be delayed until process exit time, which
+ // can be problematic for embedded VM situations. Embedded VMs should
+ // call DestroyJavaVM() to assure that VM resources are released.
+
+ // note: perfMemory_exit_helper atexit function may be removed in
+ // the future if the appropriate cleanup code can be added to the
+ // VM_Exit VMOperation's doit method.
+ if (atexit(perfMemory_exit_helper) != 0) {
+ warning("os::init2 atexit(perfMemory_exit_helper) failed");
+ }
+ }
+
+ // Shared Posix initialization
+ os::Posix::init_2();
+
+ return JNI_OK;
+}
+
+// This code originates from JDK's sysOpen and open64_w
+// from src/solaris/hpi/src/system_md.c
+
+int os::open(const char *path, int oflag, int mode) {
+ if (strlen(path) > MAX_PATH - 1) {
+ errno = ENAMETOOLONG;
+ return -1;
+ }
+ int fd;
+
+ fd = ::open64(path, oflag, mode);
+ if (fd == -1) return -1;
+
+ // If the open succeeded, the file might still be a directory
+ {
+ struct stat64 buf64;
+ int ret = ::fstat64(fd, &buf64);
+ int st_mode = buf64.st_mode;
+
+ if (ret != -1) {
+ if ((st_mode & S_IFMT) == S_IFDIR) {
+ errno = EISDIR;
+ ::close(fd);
+ return -1;
+ }
+ } else {
+ ::close(fd);
+ return -1;
+ }
+ }
+
+ // All file descriptors that are opened in the JVM and not
+ // specifically destined for a subprocess should have the
+ // close-on-exec flag set. If we don't set it, then careless 3rd
+ // party native code might fork and exec without closing all
+ // appropriate file descriptors (e.g. as we do in closeDescriptors in
+ // UNIXProcess.c), and this in turn might:
+ //
+ // - cause end-of-file to fail to be detected on some file
+ // descriptors, resulting in mysterious hangs, or
+ //
+ // - might cause an fopen in the subprocess to fail on a system
+ // suffering from bug 1085341.
+ //
+ // (Yes, the default setting of the close-on-exec flag is a Unix
+ // design flaw)
+ //
+ // See:
+ // 1085341: 32-bit stdio routines should support file descriptors >255
+ // 4843136: (process) pipe file descriptor from Runtime.exec not being closed
+ // 6339493: (process) Runtime.exec does not close all file descriptors on Solaris 9
+ //
+#ifdef FD_CLOEXEC
+ {
+ int flags = ::fcntl(fd, F_GETFD);
+ if (flags != -1) {
+ ::fcntl(fd, F_SETFD, flags | FD_CLOEXEC);
+ }
+ }
+#endif
+
+ return fd;
+}
+
+const intptr_t thr_time_off = (intptr_t)(&((prusage_t *)(NULL))->pr_utime);
+const intptr_t thr_time_size = (intptr_t)(&((prusage_t *)(NULL))->pr_ttime) -
+ (intptr_t)(&((prusage_t *)(NULL))->pr_utime);
+
+
+// JVMTI & JVM monitoring and management support
+// The thread_cpu_time() and current_thread_cpu_time() are only
+// supported if is_thread_cpu_time_supported() returns true.
+// They are not supported on Solaris T1.
+
+// current_thread_cpu_time(bool) and thread_cpu_time(Thread*, bool)
+// are used by JVM M&M and JVMTI to get user+sys or user CPU time
+// of a thread.
+//
+// current_thread_cpu_time() and thread_cpu_time(Thread *)
+// returns the fast estimate available on the platform.
+
+// hrtime_t gethrvtime() return value includes
+// user time but does not include system time
+jlong os::current_thread_cpu_time() {
+ return (jlong) gethrvtime();
+}
+
+jlong os::thread_cpu_time(Thread *thread) {
+ // return user level CPU time only to be consistent with
+ // what current_thread_cpu_time returns.
+ // thread_cpu_time_info() must be changed if this changes
+ return os::thread_cpu_time(thread, false /* user time only */);
+}
+
+jlong os::current_thread_cpu_time(bool user_sys_cpu_time) {
+ if (user_sys_cpu_time) {
+ return os::thread_cpu_time(Thread::current(), user_sys_cpu_time);
+ } else {
+ return os::current_thread_cpu_time();
+ }
+}
+
+jlong os::thread_cpu_time(Thread *thread, bool user_sys_cpu_time) {
+ char proc_name[64];
+ int count;
+ prusage_t prusage;
+ jlong lwp_time;
+ int fd;
+
+ sprintf(proc_name, "/proc/%d/lwp/%d/lwpusage",
+ getpid(),
+ thread->osthread()->lwp_id());
+ fd = ::open(proc_name, O_RDONLY);
+ if (fd == -1) return -1;
+
+ do {
+ count = ::pread(fd,
+ (void *)&prusage.pr_utime,
+ thr_time_size,
+ thr_time_off);
+ } while (count < 0 && errno == EINTR);
+ ::close(fd);
+ if (count < 0) return -1;
+
+ if (user_sys_cpu_time) {
+ // user + system CPU time
+ lwp_time = (((jlong)prusage.pr_stime.tv_sec +
+ (jlong)prusage.pr_utime.tv_sec) * (jlong)1000000000) +
+ (jlong)prusage.pr_stime.tv_nsec +
+ (jlong)prusage.pr_utime.tv_nsec;
+ } else {
+ // user level CPU time only
+ lwp_time = ((jlong)prusage.pr_utime.tv_sec * (jlong)1000000000) +
+ (jlong)prusage.pr_utime.tv_nsec;
+ }
+
+ return (lwp_time);
+}
+
+void os::current_thread_cpu_time_info(jvmtiTimerInfo *info_ptr) {
+ info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits
+ info_ptr->may_skip_backward = false; // elapsed time not wall time
+ info_ptr->may_skip_forward = false; // elapsed time not wall time
+ info_ptr->kind = JVMTI_TIMER_USER_CPU; // only user time is returned
+}
+
+void os::thread_cpu_time_info(jvmtiTimerInfo *info_ptr) {
+ info_ptr->max_value = ALL_64_BITS; // will not wrap in less than 64 bits
+ info_ptr->may_skip_backward = false; // elapsed time not wall time
+ info_ptr->may_skip_forward = false; // elapsed time not wall time
+ info_ptr->kind = JVMTI_TIMER_USER_CPU; // only user time is returned
+}
+
+bool os::is_thread_cpu_time_supported() {
+ return true;
+}
+
+// System loadavg support. Returns -1 if load average cannot be obtained.
+// Return the load average for our processor set.
+int os::loadavg(double loadavg[], int nelem) {
+ return pset_getloadavg(PS_MYID, loadavg, nelem);
+}
+
+//---------------------------------------------------------------------------------
+
+bool os::find(address addr, outputStream* st) {
+ Dl_info dlinfo;
+ memset(&dlinfo, 0, sizeof(dlinfo));
+ if (dladdr(addr, &dlinfo) != 0) {
+ st->print(PTR_FORMAT ": ", p2i(addr));
+ if (dlinfo.dli_sname != NULL && dlinfo.dli_saddr != NULL) {
+ st->print("%s+" PTR_FORMAT, dlinfo.dli_sname,
+ p2i(addr) - p2i(dlinfo.dli_saddr));
+ } else if (dlinfo.dli_fbase != NULL) {
+ st->print("<offset " PTR_FORMAT ">", p2i(addr) - p2i(dlinfo.dli_fbase));
+ } else {
+ st->print("<absolute address>");
+ }
+ if (dlinfo.dli_fname != NULL) {
+ st->print(" in %s", dlinfo.dli_fname);
+ }
+ if (dlinfo.dli_fbase != NULL) {
+ st->print(" at " PTR_FORMAT, p2i(dlinfo.dli_fbase));
+ }
+ st->cr();
+
+ if (Verbose) {
+ // decode some bytes around the PC
+ address begin = clamp_address_in_page(addr-40, addr, os::vm_page_size());
+ address end = clamp_address_in_page(addr+40, addr, os::vm_page_size());
+ address lowest = (address) dlinfo.dli_sname;
+ if (!lowest) lowest = (address) dlinfo.dli_fbase;
+ if (begin < lowest) begin = lowest;
+ Dl_info dlinfo2;
+ if (dladdr(end, &dlinfo2) != 0 && dlinfo2.dli_saddr != dlinfo.dli_saddr
+ && end > dlinfo2.dli_saddr && dlinfo2.dli_saddr > begin) {
+ end = (address) dlinfo2.dli_saddr;
+ }
+ Disassembler::decode(begin, end, st);
+ }
+ return true;
+ }
+ return false;
+}
+
+// Following function has been added to support HotSparc's libjvm.so running
+// under Solaris production JDK 1.2.2 / 1.3.0. These came from
+// src/solaris/hpi/native_threads in the EVM codebase.
+//
+// NOTE: This is no longer needed in the 1.3.1 and 1.4 production release
+// libraries and should thus be removed. We will leave it behind for a while
+// until we no longer want to able to run on top of 1.3.0 Solaris production
+// JDK. See 4341971.
+
+#define STACK_SLACK 0x800
+
+extern "C" {
+ intptr_t sysThreadAvailableStackWithSlack() {
+ stack_t st;
+ intptr_t retval, stack_top;
+ retval = thr_stksegment(&st);
+ assert(retval == 0, "incorrect return value from thr_stksegment");
+ assert((address)&st < (address)st.ss_sp, "Invalid stack base returned");
+ assert((address)&st > (address)st.ss_sp-st.ss_size, "Invalid stack size returned");
+ stack_top=(intptr_t)st.ss_sp-st.ss_size;
+ return ((intptr_t)&stack_top - stack_top - STACK_SLACK);
+ }
+}
+
+// ObjectMonitor park-unpark infrastructure ...
+//
+// We implement Solaris and Linux PlatformEvents with the
+// obvious condvar-mutex-flag triple.
+// Another alternative that works quite well is pipes:
+// Each PlatformEvent consists of a pipe-pair.
+// The thread associated with the PlatformEvent
+// calls park(), which reads from the input end of the pipe.
+// Unpark() writes into the other end of the pipe.
+// The write-side of the pipe must be set NDELAY.
+// Unfortunately pipes consume a large # of handles.
+// Native solaris lwp_park() and lwp_unpark() work nicely, too.
+// Using pipes for the 1st few threads might be workable, however.
+//
+// park() is permitted to return spuriously.
+// Callers of park() should wrap the call to park() in
+// an appropriate loop. A litmus test for the correct
+// usage of park is the following: if park() were modified
+// to immediately return 0 your code should still work,
+// albeit degenerating to a spin loop.
+//
+// In a sense, park()-unpark() just provides more polite spinning
+// and polling with the key difference over naive spinning being
+// that a parked thread needs to be explicitly unparked() in order
+// to wake up and to poll the underlying condition.
+//
+// Assumption:
+// Only one parker can exist on an event, which is why we allocate
+// them per-thread. Multiple unparkers can coexist.
+//
+// _event transitions in park()
+// -1 => -1 : illegal
+// 1 => 0 : pass - return immediately
+// 0 => -1 : block; then set _event to 0 before returning
+//
+// _event transitions in unpark()
+// 0 => 1 : just return
+// 1 => 1 : just return
+// -1 => either 0 or 1; must signal target thread
+// That is, we can safely transition _event from -1 to either
+// 0 or 1.
+//
+// _event serves as a restricted-range semaphore.
+// -1 : thread is blocked, i.e. there is a waiter
+// 0 : neutral: thread is running or ready,
+// could have been signaled after a wait started
+// 1 : signaled - thread is running or ready
+//
+// Another possible encoding of _event would be with
+// explicit "PARKED" == 01b and "SIGNALED" == 10b bits.
+//
+// TODO-FIXME: add DTRACE probes for:
+// 1. Tx parks
+// 2. Ty unparks Tx
+// 3. Tx resumes from park
+
+// JSR166
+// -------------------------------------------------------
+
+// The solaris and linux implementations of park/unpark are fairly
+// conservative for now, but can be improved. They currently use a
+// mutex/condvar pair, plus _counter.
+// Park decrements _counter if > 0, else does a condvar wait. Unpark
+// sets count to 1 and signals condvar. Only one thread ever waits
+// on the condvar. Contention seen when trying to park implies that someone
+// is unparking you, so don't wait. And spurious returns are fine, so there
+// is no need to track notifications.
+
+// Get the default path to the core file
+// Returns the length of the string
+int os::get_core_path(char* buffer, size_t bufferSize) {
+ const char* p = get_current_directory(buffer, bufferSize);
+
+ if (p == NULL) {
+ assert(p != NULL, "failed to get current directory");
+ return 0;
+ }
+
+ jio_snprintf(buffer, bufferSize, "%s/core or core.%d",
+ p, current_process_id());
+
+ return strlen(buffer);
+}
+
+bool os::supports_map_sync() {
+ return false;
+}
+
+#ifndef PRODUCT
+void TestReserveMemorySpecial_test() {
+ // No tests available for this platform
+}
+#endif
+
+bool os::start_debugging(char *buf, int buflen) {
+ int len = (int)strlen(buf);
+ char *p = &buf[len];
+
+ jio_snprintf(p, buflen-len,
+ "\n\n"
+ "Do you want to debug the problem?\n\n"
+ "To debug, run 'dbx - %d'; then switch to thread " INTX_FORMAT "\n"
+ "Enter 'yes' to launch dbx automatically (PATH must include dbx)\n"
+ "Otherwise, press RETURN to abort...",
+ os::current_process_id(), os::current_thread_id());
+
+ bool yes = os::message_box("Unexpected Error", buf);
+
+ if (yes) {
+ // yes, user asked VM to launch debugger
+ jio_snprintf(buf, sizeof(buf), "dbx - %d", os::current_process_id());
+
+ os::fork_and_exec(buf);
+ yes = false;
+ }
+ return yes;
+}
+
+void os::print_memory_mappings(char* addr, size_t bytes, outputStream* st) {}
+
+#if INCLUDE_JFR
+
+void os::jfr_report_memory_info() {}
+
+#endif // INCLUDE_JFR
+
+bool os::pd_dll_unload(void* libhandle, char* ebuf, int ebuflen) {
+
+ if (ebuf && ebuflen > 0) {
+ ebuf[0] = '\0';
+ ebuf[ebuflen - 1] = '\0';
+ }
+
+ bool res = (0 == ::dlclose(libhandle));
+ if (!res) {
+ // error analysis when dlopen fails
+ const char* error_report = ::dlerror();
+ if (error_report == nullptr) {
+ error_report = "dlerror returned no error description";
+ }
+ if (ebuf != nullptr && ebuflen > 0) {
+ snprintf(ebuf, ebuflen - 1, "%s", error_report);
+ }
+ }
+
+ return res;
+} // end: os::pd_dll_unload()
diff -urN /tmp/a/os_solaris.hpp b/src/hotspot/os/solaris/os_solaris.hpp
--- /tmp/a/os_solaris.hpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/os_solaris.hpp 2024-09-16 14:41:33.968210379 +0100
@@ -0,0 +1,201 @@
+/*
+ * Copyright (c) 1997, 2020, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_SOLARIS_OS_SOLARIS_HPP
+#define OS_SOLARIS_OS_SOLARIS_HPP
+
+#include "runtime/os.hpp"
+
+// Solaris_OS defines the interface to Solaris operating systems
+
+// see thr_setprio(3T) for the basis of these numbers
+#define MinimumPriority 0
+#define NormalPriority 64
+#define MaximumPriority 127
+
+// FX/60 is critical thread class/priority on T4
+#define FXCriticalPriority 60
+
+class os::Solaris {
+ friend class os;
+
+ private:
+
+ static bool _synchronization_initialized;
+
+ typedef uintptr_t lgrp_cookie_t;
+ typedef id_t lgrp_id_t;
+ typedef int lgrp_rsrc_t;
+ typedef enum lgrp_view {
+ LGRP_VIEW_CALLER, // what's available to the caller
+ LGRP_VIEW_OS // what's available to operating system
+ } lgrp_view_t;
+
+ typedef lgrp_id_t (*lgrp_home_func_t)(idtype_t idtype, id_t id);
+ typedef lgrp_cookie_t (*lgrp_init_func_t)(lgrp_view_t view);
+ typedef int (*lgrp_fini_func_t)(lgrp_cookie_t cookie);
+ typedef lgrp_id_t (*lgrp_root_func_t)(lgrp_cookie_t cookie);
+ typedef int (*lgrp_children_func_t)(lgrp_cookie_t cookie, lgrp_id_t parent,
+ lgrp_id_t *lgrp_array, uint_t lgrp_array_size);
+ typedef int (*lgrp_resources_func_t)(lgrp_cookie_t cookie, lgrp_id_t lgrp,
+ lgrp_id_t *lgrp_array, uint_t lgrp_array_size,
+ lgrp_rsrc_t type);
+ typedef int (*lgrp_nlgrps_func_t)(lgrp_cookie_t cookie);
+ typedef int (*lgrp_cookie_stale_func_t)(lgrp_cookie_t cookie);
+
+ static lgrp_home_func_t _lgrp_home;
+ static lgrp_init_func_t _lgrp_init;
+ static lgrp_fini_func_t _lgrp_fini;
+ static lgrp_root_func_t _lgrp_root;
+ static lgrp_children_func_t _lgrp_children;
+ static lgrp_resources_func_t _lgrp_resources;
+ static lgrp_nlgrps_func_t _lgrp_nlgrps;
+ static lgrp_cookie_stale_func_t _lgrp_cookie_stale;
+ static lgrp_cookie_t _lgrp_cookie;
+
+ // Large Page Support
+ static bool is_valid_page_size(size_t bytes);
+ static size_t page_size_for_alignment(size_t alignment);
+ static bool setup_large_pages(caddr_t start, size_t bytes, size_t align);
+
+ typedef int (*pthread_setname_np_func_t)(pthread_t, const char*);
+ static pthread_setname_np_func_t _pthread_setname_np;
+
+ public:
+ // Large Page Support--ISM.
+ static bool largepage_range(char* addr, size_t size);
+
+ static address handler_start, handler_end; // start and end pc of thr_sighndlrinfo
+
+ static bool valid_ucontext(Thread* thread, const ucontext_t* valid, const ucontext_t* suspect);
+ static const ucontext_t* get_valid_uc_in_signal_handler(Thread* thread,
+ const ucontext_t* uc);
+
+ static intptr_t* ucontext_get_sp(const ucontext_t* uc);
+ // ucontext_get_fp() is only used by Solaris X86 (see note below)
+ static intptr_t* ucontext_get_fp(const ucontext_t* uc);
+
+ static bool get_frame_at_stack_banging_point(JavaThread* thread, ucontext_t* uc, frame* fr);
+
+ static void init_thread_fpu_state(void);
+
+ protected:
+ // Solaris-specific interface goes here
+ static julong available_memory();
+ static julong free_memory();
+ static julong physical_memory() { return _physical_memory; }
+ static julong _physical_memory;
+ static void initialize_system_info();
+ static int _dev_zero_fd;
+ static int get_dev_zero_fd() { return _dev_zero_fd; }
+ static void set_dev_zero_fd(int fd) { _dev_zero_fd = fd; }
+ static int commit_memory_impl(char* addr, size_t bytes, bool exec);
+ static int commit_memory_impl(char* addr, size_t bytes,
+ size_t alignment_hint, bool exec);
+ static char* mmap_chunk(char *addr, size_t size, int flags, int prot);
+ static char* anon_mmap(char* requested_addr, size_t bytes);
+ static bool mpss_sanity_check(bool warn, size_t * page_size);
+
+ static address current_stack_base();
+ static size_t current_stack_size();
+
+ // Workaround for 4352906. thr_stksegment sometimes returns
+ // a bad value for the primordial thread's stack base when
+ // it is called more than one time.
+ // Workaround is to cache the initial value to avoid further
+ // calls to thr_stksegment.
+ // It appears that someone (Hotspot?) is trashing the user's
+ // proc_t structure (note that this is a system struct).
+ static address _main_stack_base;
+
+ static void print_distro_info(outputStream* st);
+ static void print_libversion_info(outputStream* st);
+
+ public:
+ static void libthread_init();
+ static void synchronization_init();
+ static bool liblgrp_init();
+
+ // alignment with os_posix means we use pthreads
+ static int mutex_lock(pthread_mutex_t *mx) { return pthread_mutex_lock(mx); }
+ static int mutex_trylock(pthread_mutex_t *mx) { return pthread_mutex_trylock(mx); }
+ static int mutex_unlock(pthread_mutex_t *mx) { return pthread_mutex_unlock(mx); }
+ static int mutex_init(pthread_mutex_t *mx) { return pthread_mutex_init(mx, NULL); }
+ static int mutex_destroy(pthread_mutex_t *mx) { return pthread_mutex_destroy(mx); }
+
+ static int cond_timedwait(pthread_cond_t *cv, pthread_mutex_t *mx, timestruc_t *abst) { return pthread_cond_timedwait(cv, mx, abst); }
+ static int cond_wait(pthread_cond_t *cv, pthread_mutex_t *mx) { return pthread_cond_wait(cv, mx); }
+ static int cond_signal(pthread_cond_t *cv) { return pthread_cond_signal(cv); }
+ static int cond_broadcast(pthread_cond_t *cv) { return pthread_cond_broadcast(cv); }
+ static int cond_init(pthread_cond_t *cv) { return pthread_cond_init(cv, NULL); }
+ static int cond_destroy(pthread_cond_t *cv) { return pthread_cond_destroy(cv); }
+
+ static bool synchronization_initialized() { return _synchronization_initialized; }
+
+ static void set_lgrp_home(lgrp_home_func_t func) { _lgrp_home = func; }
+ static void set_lgrp_init(lgrp_init_func_t func) { _lgrp_init = func; }
+ static void set_lgrp_fini(lgrp_fini_func_t func) { _lgrp_fini = func; }
+ static void set_lgrp_root(lgrp_root_func_t func) { _lgrp_root = func; }
+ static void set_lgrp_children(lgrp_children_func_t func) { _lgrp_children = func; }
+ static void set_lgrp_resources(lgrp_resources_func_t func) { _lgrp_resources = func; }
+ static void set_lgrp_nlgrps(lgrp_nlgrps_func_t func) { _lgrp_nlgrps = func; }
+ static void set_lgrp_cookie_stale(lgrp_cookie_stale_func_t func) { _lgrp_cookie_stale = func; }
+ static void set_lgrp_cookie(lgrp_cookie_t cookie) { _lgrp_cookie = cookie; }
+
+ static id_t lgrp_home(idtype_t type, id_t id) { return _lgrp_home != NULL ? _lgrp_home(type, id) : -1; }
+ static lgrp_cookie_t lgrp_init(lgrp_view_t view) { return _lgrp_init != NULL ? _lgrp_init(view) : 0; }
+ static int lgrp_fini(lgrp_cookie_t cookie) { return _lgrp_fini != NULL ? _lgrp_fini(cookie) : -1; }
+ static lgrp_id_t lgrp_root(lgrp_cookie_t cookie) { return _lgrp_root != NULL ? _lgrp_root(cookie) : -1; }
+ static int lgrp_children(lgrp_cookie_t cookie, lgrp_id_t parent,
+ lgrp_id_t *lgrp_array, uint_t lgrp_array_size) {
+ return _lgrp_children != NULL ? _lgrp_children(cookie, parent, lgrp_array, lgrp_array_size) : -1;
+ }
+ static int lgrp_resources(lgrp_cookie_t cookie, lgrp_id_t lgrp,
+ lgrp_id_t *lgrp_array, uint_t lgrp_array_size,
+ lgrp_rsrc_t type) {
+ return _lgrp_resources != NULL ? _lgrp_resources(cookie, lgrp, lgrp_array, lgrp_array_size, type) : -1;
+ }
+
+ static int lgrp_nlgrps(lgrp_cookie_t cookie) { return _lgrp_nlgrps != NULL ? _lgrp_nlgrps(cookie) : -1; }
+ static int lgrp_cookie_stale(lgrp_cookie_t cookie) {
+ return _lgrp_cookie_stale != NULL ? _lgrp_cookie_stale(cookie) : -1;
+ }
+ static lgrp_cookie_t lgrp_cookie() { return _lgrp_cookie; }
+
+ static sigset_t* unblocked_signals();
+ static sigset_t* vm_signals();
+
+ // %%% Following should be promoted to os.hpp:
+ // Trace number of created threads
+ static jint _os_thread_limit;
+ static volatile jint _os_thread_count;
+
+ static void correct_stack_boundaries_for_primordial_thread(Thread* thr);
+
+ // Stack repair handling
+
+ // none present
+
+};
+#endif // OS_SOLARIS_OS_SOLARIS_HPP
diff -urN /tmp/a/os_solaris.inline.hpp b/src/hotspot/os/solaris/os_solaris.inline.hpp
--- /tmp/a/os_solaris.inline.hpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/os_solaris.inline.hpp 2024-09-16 14:41:33.968292953 +0100
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 1997, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_SOLARIS_OS_SOLARIS_INLINE_HPP
+#define OS_SOLARIS_OS_SOLARIS_INLINE_HPP
+
+#include "os_solaris.hpp"
+
+#include "runtime/os.hpp"
+#include "os_posix.inline.hpp"
+
+// System includes
+#include <sys/param.h>
+#include <dlfcn.h>
+#include <sys/socket.h>
+#include <poll.h>
+#include <sys/filio.h>
+#include <unistd.h>
+#include <netdb.h>
+#include <setjmp.h>
+
+inline bool os::zero_page_read_protected() {
+ return true;
+}
+
+inline bool os::uses_stack_guard_pages() {
+ return true;
+}
+
+inline bool os::must_commit_stack_guard_pages() {
+ assert(uses_stack_guard_pages(), "sanity check");
+ int r = thr_main() ;
+ guarantee (r == 0 || r == 1, "CR6501650 or CR6493689") ;
+ return r;
+}
+
+
+// Bang the shadow pages if they need to be touched to be mapped.
+inline void os::map_stack_shadow_pages(address sp) {
+}
+
+// stubbed-out trim-native support
+inline bool os::can_trim_native_heap() { return false; }
+inline bool os::trim_native_heap(os::size_change_t* rss_change) { return false; }
+
+//////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
+inline bool os::numa_has_group_homing() { return true; }
+
+#endif // OS_SOLARIS_OS_SOLARIS_INLINE_HPP
diff -urN /tmp/a/vmStructs_solaris.hpp b/src/hotspot/os/solaris/vmStructs_solaris.hpp
--- /tmp/a/vmStructs_solaris.hpp 1970-01-01 01:00:00.000000000 +0100
+++ b/src/hotspot/os/solaris/vmStructs_solaris.hpp 2024-09-16 14:41:33.968376996 +0100
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2015, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_SOLARIS_VMSTRUCTS_SOLARIS_HPP
+#define OS_SOLARIS_VMSTRUCTS_SOLARIS_HPP
+
+// These are the OS-specific fields, types and integer
+// constants required by the Serviceability Agent. This file is
+// referenced by vmStructs.cpp.
+
+#define VM_STRUCTS_OS(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
+ nonstatic_field(OSThread, _thread_id, OSThread::thread_id_t)
+
+#define VM_TYPES_OS(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
+ declare_unsigned_integer_type(OSThread::thread_id_t)
+
+#define VM_INT_CONSTANTS_OS(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
+
+#define VM_LONG_CONSTANTS_OS(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
+
+#define VM_ADDRESSES_OS(declare_address, declare_preprocessor_address, declare_function)
+
+#endif // OS_SOLARIS_VMSTRUCTS_SOLARIS_HPP