| /* |
| * 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 |