--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/os/solaris/os_solaris.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,333 @@
+/*
+ * Copyright (c) 1997, 2017, 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_VM_OS_SOLARIS_HPP
+#define OS_SOLARIS_VM_OS_SOLARIS_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
+
+// Information about the protection of the page at address '0' on this os.
+static bool zero_page_read_protected() { return true; }
+
+class Solaris {
+ friend class os;
+
+ private:
+
+ // Support for "new" libthread APIs for getting & setting thread context (2.8)
+#define TRS_VALID 0
+#define TRS_NONVOLATILE 1
+#define TRS_LWPID 2
+#define TRS_INVALID 3
+
+ // initialized to libthread or lwp synchronization primitives depending on UseLWPSychronization
+ static int_fnP_mutex_tP _mutex_lock;
+ static int_fnP_mutex_tP _mutex_trylock;
+ static int_fnP_mutex_tP _mutex_unlock;
+ static int_fnP_mutex_tP_i_vP _mutex_init;
+ static int_fnP_mutex_tP _mutex_destroy;
+ static int _mutex_scope;
+
+ static int_fnP_cond_tP_mutex_tP_timestruc_tP _cond_timedwait;
+ static int_fnP_cond_tP_mutex_tP _cond_wait;
+ static int_fnP_cond_tP _cond_signal;
+ static int_fnP_cond_tP _cond_broadcast;
+ static int_fnP_cond_tP_i_vP _cond_init;
+ static int_fnP_cond_tP _cond_destroy;
+ static int _cond_scope;
+
+ 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);
+
+ static void init_thread_fpu_state(void);
+
+ static void try_enable_extended_io();
+
+ static struct sigaction *(*get_signal_action)(int);
+ static struct sigaction *get_preinstalled_handler(int);
+ static int (*get_libjsig_version)();
+ static void save_preinstalled_handler(int, struct sigaction&);
+ static void check_signal_handler(int sig);
+
+ 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_stack_address(Thread* thread, address sp);
+ 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 ExtendedPC ucontext_get_ExtendedPC(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 address ucontext_get_pc(const ucontext_t* uc);
+ static void ucontext_set_pc(ucontext_t* uc, address pc);
+
+ // For Analyzer Forte AsyncGetCallTrace profiling support:
+ // Parameter ret_fp is only used by Solaris X86.
+ //
+ // We should have different declarations of this interface in
+ // os_solaris_i486.hpp and os_solaris_sparc.hpp, but that file
+ // provides extensions to the os class and not the Solaris class.
+ static ExtendedPC fetch_frame_from_ucontext(Thread* thread, const ucontext_t* uc,
+ intptr_t** ret_sp, intptr_t** ret_fp);
+
+ static bool get_frame_at_stack_banging_point(JavaThread* thread, ucontext_t* uc, frame* fr);
+
+ static void hotspot_sigmask(Thread* thread);
+
+ // SR_handler
+ static void SR_handler(Thread* thread, ucontext_t* uc);
+ protected:
+ // Solaris-specific interface goes here
+ static julong available_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, size_t alignment_hint, bool fixed);
+ static bool mpss_sanity_check(bool warn, size_t * page_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();
+ // This boolean allows users to forward their own non-matching signals
+ // to JVM_handle_solaris_signal, harmlessly.
+ static bool signal_handlers_are_installed;
+
+ static void signal_sets_init();
+ static void install_signal_handlers();
+ static void set_signal_handler(int sig, bool set_installed, bool oktochain);
+ static void init_signal_mem();
+ static bool is_sig_ignored(int sig);
+ static void set_our_sigflags(int, int);
+ static int get_our_sigflags(int);
+
+ // For signal-chaining
+ static bool libjsig_is_loaded; // libjsig that interposes sigaction(),
+ // signal(), sigset() is loaded
+ static struct sigaction *get_chained_signal_action(int sig);
+ static bool chained_handler(int sig, siginfo_t *siginfo, void *context);
+
+ // Allows us to switch between lwp and thread -based synchronization
+ static int mutex_lock(mutex_t *mx) { return _mutex_lock(mx); }
+ static int mutex_trylock(mutex_t *mx) { return _mutex_trylock(mx); }
+ static int mutex_unlock(mutex_t *mx) { return _mutex_unlock(mx); }
+ static int mutex_init(mutex_t *mx) { return _mutex_init(mx, os::Solaris::mutex_scope(), NULL); }
+ static int mutex_destroy(mutex_t *mx) { return _mutex_destroy(mx); }
+ static int mutex_scope() { return _mutex_scope; }
+
+ static void set_mutex_lock(int_fnP_mutex_tP func) { _mutex_lock = func; }
+ static void set_mutex_trylock(int_fnP_mutex_tP func) { _mutex_trylock = func; }
+ static void set_mutex_unlock(int_fnP_mutex_tP func) { _mutex_unlock = func; }
+ static void set_mutex_init(int_fnP_mutex_tP_i_vP func) { _mutex_init = func; }
+ static void set_mutex_destroy(int_fnP_mutex_tP func) { _mutex_destroy = func; }
+ static void set_mutex_scope(int scope) { _mutex_scope = scope; }
+
+ static int cond_timedwait(cond_t *cv, mutex_t *mx, timestruc_t *abst) { return _cond_timedwait(cv, mx, abst); }
+ static int cond_wait(cond_t *cv, mutex_t *mx) { return _cond_wait(cv, mx); }
+ static int cond_signal(cond_t *cv) { return _cond_signal(cv); }
+ static int cond_broadcast(cond_t *cv) { return _cond_broadcast(cv); }
+ static int cond_init(cond_t *cv) { return _cond_init(cv, os::Solaris::cond_scope(), NULL); }
+ static int cond_destroy(cond_t *cv) { return _cond_destroy(cv); }
+ static int cond_scope() { return _cond_scope; }
+
+ static void set_cond_timedwait(int_fnP_cond_tP_mutex_tP_timestruc_tP func) { _cond_timedwait = func; }
+ static void set_cond_wait(int_fnP_cond_tP_mutex_tP func) { _cond_wait = func; }
+ static void set_cond_signal(int_fnP_cond_tP func) { _cond_signal = func; }
+ static void set_cond_broadcast(int_fnP_cond_tP func) { _cond_broadcast = func; }
+ static void set_cond_init(int_fnP_cond_tP_i_vP func) { _cond_init = func; }
+ static void set_cond_destroy(int_fnP_cond_tP func) { _cond_destroy = func; }
+ static void set_cond_scope(int scope) { _cond_scope = scope; }
+
+ 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;
+
+
+ // Stack overflow handling
+
+ static int max_register_window_saves_before_flushing();
+
+ // Stack repair handling
+
+ // none present
+
+};
+
+class PlatformEvent : public CHeapObj<mtInternal> {
+ private:
+ double CachePad[4]; // increase odds that _mutex is sole occupant of cache line
+ volatile int _Event;
+ int _nParked;
+ int _pipev[2];
+ mutex_t _mutex[1];
+ cond_t _cond[1];
+ double PostPad[2];
+
+ protected:
+ // Defining a protected ctor effectively gives us an abstract base class.
+ // That is, a PlatformEvent can never be instantiated "naked" but only
+ // as a part of a ParkEvent (recall that ParkEvent extends PlatformEvent).
+ // TODO-FIXME: make dtor private
+ ~PlatformEvent() { guarantee(0, "invariant"); }
+ PlatformEvent() {
+ int status;
+ status = os::Solaris::cond_init(_cond);
+ assert_status(status == 0, status, "cond_init");
+ status = os::Solaris::mutex_init(_mutex);
+ assert_status(status == 0, status, "mutex_init");
+ _Event = 0;
+ _nParked = 0;
+ _pipev[0] = _pipev[1] = -1;
+ }
+
+ public:
+ // Exercise caution using reset() and fired() -- they may require MEMBARs
+ void reset() { _Event = 0; }
+ int fired() { return _Event; }
+ void park();
+ int park(jlong millis);
+ void unpark();
+};
+
+class PlatformParker : public CHeapObj<mtInternal> {
+ protected:
+ mutex_t _mutex[1];
+ cond_t _cond[1];
+
+ public: // TODO-FIXME: make dtor private
+ ~PlatformParker() { guarantee(0, "invariant"); }
+
+ public:
+ PlatformParker() {
+ int status;
+ status = os::Solaris::cond_init(_cond);
+ assert_status(status == 0, status, "cond_init");
+ status = os::Solaris::mutex_init(_mutex);
+ assert_status(status == 0, status, "mutex_init");
+ }
+};
+
+#endif // OS_SOLARIS_VM_OS_SOLARIS_HPP