1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/os/solaris/vm/os_solaris.hpp Wed Apr 27 01:25:04 2016 +0800
1.3 @@ -0,0 +1,411 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + *
1.26 + */
1.27 +
1.28 +#ifndef OS_SOLARIS_VM_OS_SOLARIS_HPP
1.29 +#define OS_SOLARIS_VM_OS_SOLARIS_HPP
1.30 +
1.31 +// Solaris_OS defines the interface to Solaris operating systems
1.32 +
1.33 +// Information about the protection of the page at address '0' on this os.
1.34 +static bool zero_page_read_protected() { return true; }
1.35 +
1.36 +class Solaris {
1.37 + friend class os;
1.38 +
1.39 + private:
1.40 +
1.41 + // Support for "new" libthread APIs for getting & setting thread context (2.8)
1.42 + #define TRS_VALID 0
1.43 + #define TRS_NONVOLATILE 1
1.44 + #define TRS_LWPID 2
1.45 + #define TRS_INVALID 3
1.46 +
1.47 + // _T2_libthread is true if we believe we are running with the newer
1.48 + // SunSoft lib/lwp/libthread: default Solaris 9, available Solaris 8
1.49 + // which is a lightweight libthread that also supports all T1
1.50 + static bool _T2_libthread;
1.51 + // These refer to new libthread interface functions
1.52 + // They get intialized if we dynamically detect new libthread
1.53 + static int_fnP_thread_t_iP_uP_stack_tP_gregset_t _thr_getstate;
1.54 + static int_fnP_thread_t_i_gregset_t _thr_setstate;
1.55 + static int_fnP_thread_t_i _thr_setmutator;
1.56 + static int_fnP_thread_t _thr_suspend_mutator;
1.57 + static int_fnP_thread_t _thr_continue_mutator;
1.58 + // libthread_init sets the above, if the new functionality is detected
1.59 +
1.60 + // initialized to libthread or lwp synchronization primitives depending on UseLWPSychronization
1.61 + static int_fnP_mutex_tP _mutex_lock;
1.62 + static int_fnP_mutex_tP _mutex_trylock;
1.63 + static int_fnP_mutex_tP _mutex_unlock;
1.64 + static int_fnP_mutex_tP_i_vP _mutex_init;
1.65 + static int_fnP_mutex_tP _mutex_destroy;
1.66 + static int _mutex_scope;
1.67 +
1.68 + static int_fnP_cond_tP_mutex_tP_timestruc_tP _cond_timedwait;
1.69 + static int_fnP_cond_tP_mutex_tP _cond_wait;
1.70 + static int_fnP_cond_tP _cond_signal;
1.71 + static int_fnP_cond_tP _cond_broadcast;
1.72 + static int_fnP_cond_tP_i_vP _cond_init;
1.73 + static int_fnP_cond_tP _cond_destroy;
1.74 + static int _cond_scope;
1.75 +
1.76 + typedef uintptr_t lgrp_cookie_t;
1.77 + typedef id_t lgrp_id_t;
1.78 + typedef int lgrp_rsrc_t;
1.79 + typedef enum lgrp_view {
1.80 + LGRP_VIEW_CALLER, /* what's available to the caller */
1.81 + LGRP_VIEW_OS /* what's available to operating system */
1.82 + } lgrp_view_t;
1.83 +
1.84 + typedef uint_t (*getisax_func_t)(uint32_t* array, uint_t n);
1.85 +
1.86 + typedef lgrp_id_t (*lgrp_home_func_t)(idtype_t idtype, id_t id);
1.87 + typedef lgrp_cookie_t (*lgrp_init_func_t)(lgrp_view_t view);
1.88 + typedef int (*lgrp_fini_func_t)(lgrp_cookie_t cookie);
1.89 + typedef lgrp_id_t (*lgrp_root_func_t)(lgrp_cookie_t cookie);
1.90 + typedef int (*lgrp_children_func_t)(lgrp_cookie_t cookie, lgrp_id_t parent,
1.91 + lgrp_id_t *lgrp_array, uint_t lgrp_array_size);
1.92 + typedef int (*lgrp_resources_func_t)(lgrp_cookie_t cookie, lgrp_id_t lgrp,
1.93 + lgrp_id_t *lgrp_array, uint_t lgrp_array_size,
1.94 + lgrp_rsrc_t type);
1.95 + typedef int (*lgrp_nlgrps_func_t)(lgrp_cookie_t cookie);
1.96 + typedef int (*lgrp_cookie_stale_func_t)(lgrp_cookie_t cookie);
1.97 + typedef int (*meminfo_func_t)(const uint64_t inaddr[], int addr_count,
1.98 + const uint_t info_req[], int info_count,
1.99 + uint64_t outdata[], uint_t validity[]);
1.100 +
1.101 + static getisax_func_t _getisax;
1.102 +
1.103 + static lgrp_home_func_t _lgrp_home;
1.104 + static lgrp_init_func_t _lgrp_init;
1.105 + static lgrp_fini_func_t _lgrp_fini;
1.106 + static lgrp_root_func_t _lgrp_root;
1.107 + static lgrp_children_func_t _lgrp_children;
1.108 + static lgrp_resources_func_t _lgrp_resources;
1.109 + static lgrp_nlgrps_func_t _lgrp_nlgrps;
1.110 + static lgrp_cookie_stale_func_t _lgrp_cookie_stale;
1.111 + static lgrp_cookie_t _lgrp_cookie;
1.112 +
1.113 + static meminfo_func_t _meminfo;
1.114 +
1.115 + // Large Page Support
1.116 + static bool setup_large_pages(caddr_t start, size_t bytes, size_t align);
1.117 +
1.118 + static void init_thread_fpu_state(void);
1.119 +
1.120 + static void try_enable_extended_io();
1.121 +
1.122 + // For signal-chaining
1.123 + static unsigned long sigs; // mask of signals that have
1.124 + // preinstalled signal handlers
1.125 + static struct sigaction *(*get_signal_action)(int);
1.126 + static struct sigaction *get_preinstalled_handler(int);
1.127 + static int (*get_libjsig_version)();
1.128 + static void save_preinstalled_handler(int, struct sigaction&);
1.129 + static void check_signal_handler(int sig);
1.130 + // For overridable signals
1.131 + static int _SIGinterrupt; // user-overridable INTERRUPT_SIGNAL
1.132 + static int _SIGasync; // user-overridable ASYNC_SIGNAL
1.133 + static void set_SIGinterrupt(int newsig) { _SIGinterrupt = newsig; }
1.134 + static void set_SIGasync(int newsig) { _SIGasync = newsig; }
1.135 +
1.136 + public:
1.137 + // Large Page Support--ISM.
1.138 + static bool largepage_range(char* addr, size_t size);
1.139 +
1.140 + static int SIGinterrupt() { return _SIGinterrupt; }
1.141 + static int SIGasync() { return _SIGasync; }
1.142 + static address handler_start, handler_end; // start and end pc of thr_sighndlrinfo
1.143 +
1.144 + static bool valid_stack_address(Thread* thread, address sp);
1.145 + static bool valid_ucontext(Thread* thread, ucontext_t* valid, ucontext_t* suspect);
1.146 + static ucontext_t* get_valid_uc_in_signal_handler(Thread* thread,
1.147 + ucontext_t* uc);
1.148 +
1.149 + static ExtendedPC ucontext_get_ExtendedPC(ucontext_t* uc);
1.150 + static intptr_t* ucontext_get_sp(ucontext_t* uc);
1.151 + // ucontext_get_fp() is only used by Solaris X86 (see note below)
1.152 + static intptr_t* ucontext_get_fp(ucontext_t* uc);
1.153 + static address ucontext_get_pc(ucontext_t* uc);
1.154 +
1.155 + // For Analyzer Forte AsyncGetCallTrace profiling support:
1.156 + // Parameter ret_fp is only used by Solaris X86.
1.157 + //
1.158 + // We should have different declarations of this interface in
1.159 + // os_solaris_i486.hpp and os_solaris_sparc.hpp, but that file
1.160 + // provides extensions to the os class and not the Solaris class.
1.161 + static ExtendedPC fetch_frame_from_ucontext(Thread* thread, ucontext_t* uc,
1.162 + intptr_t** ret_sp, intptr_t** ret_fp);
1.163 +
1.164 + static void hotspot_sigmask(Thread* thread);
1.165 +
1.166 + // SR_handler
1.167 + static void SR_handler(Thread* thread, ucontext_t* uc);
1.168 + protected:
1.169 + // Solaris-specific interface goes here
1.170 + static julong available_memory();
1.171 + static julong physical_memory() { return _physical_memory; }
1.172 + static julong _physical_memory;
1.173 + static void initialize_system_info();
1.174 + static int _dev_zero_fd;
1.175 + static int get_dev_zero_fd() { return _dev_zero_fd; }
1.176 + static void set_dev_zero_fd(int fd) { _dev_zero_fd = fd; }
1.177 + static int commit_memory_impl(char* addr, size_t bytes, bool exec);
1.178 + static int commit_memory_impl(char* addr, size_t bytes,
1.179 + size_t alignment_hint, bool exec);
1.180 + static char* mmap_chunk(char *addr, size_t size, int flags, int prot);
1.181 + static char* anon_mmap(char* requested_addr, size_t bytes, size_t alignment_hint, bool fixed);
1.182 + static bool mpss_sanity_check(bool warn, size_t * page_size);
1.183 +
1.184 + // Workaround for 4352906. thr_stksegment sometimes returns
1.185 + // a bad value for the primordial thread's stack base when
1.186 + // it is called more than one time.
1.187 + // Workaround is to cache the initial value to avoid further
1.188 + // calls to thr_stksegment.
1.189 + // It appears that someone (Hotspot?) is trashing the user's
1.190 + // proc_t structure (note that this is a system struct).
1.191 + static address _main_stack_base;
1.192 +
1.193 + static void print_distro_info(outputStream* st);
1.194 + static void print_libversion_info(outputStream* st);
1.195 +
1.196 + public:
1.197 + static void libthread_init();
1.198 + static void synchronization_init();
1.199 + static bool liblgrp_init();
1.200 + // Load miscellaneous symbols.
1.201 + static void misc_sym_init();
1.202 + // This boolean allows users to forward their own non-matching signals
1.203 + // to JVM_handle_solaris_signal, harmlessly.
1.204 + static bool signal_handlers_are_installed;
1.205 +
1.206 + static void signal_sets_init();
1.207 + static void install_signal_handlers();
1.208 + static void set_signal_handler(int sig, bool set_installed, bool oktochain);
1.209 + static void init_signal_mem();
1.210 + static bool is_sig_ignored(int sig);
1.211 + static void set_our_sigflags(int, int);
1.212 + static int get_our_sigflags(int);
1.213 +
1.214 + // For signal-chaining
1.215 + static bool libjsig_is_loaded; // libjsig that interposes sigaction(),
1.216 + // signal(), sigset() is loaded
1.217 + static struct sigaction *get_chained_signal_action(int sig);
1.218 + static bool chained_handler(int sig, siginfo_t *siginfo, void *context);
1.219 +
1.220 + // The following allow us to link against both the old and new libthread (2.8)
1.221 + // and exploit the new libthread functionality if available.
1.222 +
1.223 + static bool T2_libthread() { return _T2_libthread; }
1.224 + static void set_T2_libthread(bool T2_libthread) { _T2_libthread = T2_libthread; }
1.225 +
1.226 + static int thr_getstate(thread_t tid, int *flag, unsigned *lwp, stack_t *ss, gregset_t rs)
1.227 + { return _thr_getstate(tid, flag, lwp, ss, rs); }
1.228 + static void set_thr_getstate(int_fnP_thread_t_iP_uP_stack_tP_gregset_t func)
1.229 + { _thr_getstate = func; }
1.230 +
1.231 + static int thr_setstate(thread_t tid, int flag, gregset_t rs) { return _thr_setstate(tid, flag, rs); }
1.232 + static void set_thr_setstate(int_fnP_thread_t_i_gregset_t func) { _thr_setstate = func; }
1.233 +
1.234 + static int thr_setmutator(thread_t tid, int enabled) { return _thr_setmutator(tid, enabled); }
1.235 + static void set_thr_setmutator(int_fnP_thread_t_i func) { _thr_setmutator = func; }
1.236 +
1.237 + static int thr_suspend_mutator(thread_t tid) { return _thr_suspend_mutator(tid); }
1.238 + static void set_thr_suspend_mutator(int_fnP_thread_t func) { _thr_suspend_mutator = func; }
1.239 +
1.240 + static int thr_continue_mutator(thread_t tid) { return _thr_continue_mutator(tid); }
1.241 + static void set_thr_continue_mutator(int_fnP_thread_t func) { _thr_continue_mutator = func; }
1.242 +
1.243 + // Allows us to switch between lwp and thread -based synchronization
1.244 + static int mutex_lock(mutex_t *mx) { return _mutex_lock(mx); }
1.245 + static int mutex_trylock(mutex_t *mx) { return _mutex_trylock(mx); }
1.246 + static int mutex_unlock(mutex_t *mx) { return _mutex_unlock(mx); }
1.247 + static int mutex_init(mutex_t *mx) { return _mutex_init(mx, os::Solaris::mutex_scope(), NULL); }
1.248 + static int mutex_destroy(mutex_t *mx) { return _mutex_destroy(mx); }
1.249 + static int mutex_scope() { return _mutex_scope; }
1.250 +
1.251 + static void set_mutex_lock(int_fnP_mutex_tP func) { _mutex_lock = func; }
1.252 + static void set_mutex_trylock(int_fnP_mutex_tP func) { _mutex_trylock = func; }
1.253 + static void set_mutex_unlock(int_fnP_mutex_tP func) { _mutex_unlock = func; }
1.254 + static void set_mutex_init(int_fnP_mutex_tP_i_vP func) { _mutex_init = func; }
1.255 + static void set_mutex_destroy(int_fnP_mutex_tP func) { _mutex_destroy = func; }
1.256 + static void set_mutex_scope(int scope) { _mutex_scope = scope; }
1.257 +
1.258 + static int cond_timedwait(cond_t *cv, mutex_t *mx, timestruc_t *abst)
1.259 + { return _cond_timedwait(cv, mx, abst); }
1.260 + static int cond_wait(cond_t *cv, mutex_t *mx) { return _cond_wait(cv, mx); }
1.261 + static int cond_signal(cond_t *cv) { return _cond_signal(cv); }
1.262 + static int cond_broadcast(cond_t *cv) { return _cond_broadcast(cv); }
1.263 + static int cond_init(cond_t *cv) { return _cond_init(cv, os::Solaris::cond_scope(), NULL); }
1.264 + static int cond_destroy(cond_t *cv) { return _cond_destroy(cv); }
1.265 + static int cond_scope() { return _cond_scope; }
1.266 +
1.267 + static void set_cond_timedwait(int_fnP_cond_tP_mutex_tP_timestruc_tP func)
1.268 + { _cond_timedwait = func; }
1.269 + static void set_cond_wait(int_fnP_cond_tP_mutex_tP func) { _cond_wait = func; }
1.270 + static void set_cond_signal(int_fnP_cond_tP func) { _cond_signal = func; }
1.271 + static void set_cond_broadcast(int_fnP_cond_tP func) { _cond_broadcast = func; }
1.272 + static void set_cond_init(int_fnP_cond_tP_i_vP func) { _cond_init = func; }
1.273 + static void set_cond_destroy(int_fnP_cond_tP func) { _cond_destroy = func; }
1.274 + static void set_cond_scope(int scope) { _cond_scope = scope; }
1.275 +
1.276 + static void set_lgrp_home(lgrp_home_func_t func) { _lgrp_home = func; }
1.277 + static void set_lgrp_init(lgrp_init_func_t func) { _lgrp_init = func; }
1.278 + static void set_lgrp_fini(lgrp_fini_func_t func) { _lgrp_fini = func; }
1.279 + static void set_lgrp_root(lgrp_root_func_t func) { _lgrp_root = func; }
1.280 + static void set_lgrp_children(lgrp_children_func_t func) { _lgrp_children = func; }
1.281 + static void set_lgrp_resources(lgrp_resources_func_t func) { _lgrp_resources = func; }
1.282 + static void set_lgrp_nlgrps(lgrp_nlgrps_func_t func) { _lgrp_nlgrps = func; }
1.283 + static void set_lgrp_cookie_stale(lgrp_cookie_stale_func_t func) { _lgrp_cookie_stale = func; }
1.284 + static void set_lgrp_cookie(lgrp_cookie_t cookie) { _lgrp_cookie = cookie; }
1.285 +
1.286 + static id_t lgrp_home(idtype_t type, id_t id) { return _lgrp_home != NULL ? _lgrp_home(type, id) : -1; }
1.287 + static lgrp_cookie_t lgrp_init(lgrp_view_t view) { return _lgrp_init != NULL ? _lgrp_init(view) : 0; }
1.288 + static int lgrp_fini(lgrp_cookie_t cookie) { return _lgrp_fini != NULL ? _lgrp_fini(cookie) : -1; }
1.289 + static lgrp_id_t lgrp_root(lgrp_cookie_t cookie) { return _lgrp_root != NULL ? _lgrp_root(cookie) : -1; };
1.290 + static int lgrp_children(lgrp_cookie_t cookie, lgrp_id_t parent,
1.291 + lgrp_id_t *lgrp_array, uint_t lgrp_array_size) {
1.292 + return _lgrp_children != NULL ? _lgrp_children(cookie, parent, lgrp_array, lgrp_array_size) : -1;
1.293 + }
1.294 + static int lgrp_resources(lgrp_cookie_t cookie, lgrp_id_t lgrp,
1.295 + lgrp_id_t *lgrp_array, uint_t lgrp_array_size,
1.296 + lgrp_rsrc_t type) {
1.297 + return _lgrp_resources != NULL ? _lgrp_resources(cookie, lgrp, lgrp_array, lgrp_array_size, type) : -1;
1.298 + }
1.299 +
1.300 + static int lgrp_nlgrps(lgrp_cookie_t cookie) { return _lgrp_nlgrps != NULL ? _lgrp_nlgrps(cookie) : -1; }
1.301 + static int lgrp_cookie_stale(lgrp_cookie_t cookie) {
1.302 + return _lgrp_cookie_stale != NULL ? _lgrp_cookie_stale(cookie) : -1;
1.303 + }
1.304 + static lgrp_cookie_t lgrp_cookie() { return _lgrp_cookie; }
1.305 +
1.306 + static bool supports_getisax() { return _getisax != NULL; }
1.307 + static uint_t getisax(uint32_t* array, uint_t n);
1.308 +
1.309 + static void set_meminfo(meminfo_func_t func) { _meminfo = func; }
1.310 + static int meminfo (const uint64_t inaddr[], int addr_count,
1.311 + const uint_t info_req[], int info_count,
1.312 + uint64_t outdata[], uint_t validity[]) {
1.313 + return _meminfo != NULL ? _meminfo(inaddr, addr_count, info_req, info_count,
1.314 + outdata, validity) : -1;
1.315 + }
1.316 +
1.317 + enum {
1.318 + clear_interrupted = true
1.319 + };
1.320 + static void setup_interruptible(JavaThread* thread);
1.321 + static void setup_interruptible_already_blocked(JavaThread* thread);
1.322 + static JavaThread* setup_interruptible();
1.323 + static void cleanup_interruptible(JavaThread* thread);
1.324 +
1.325 + // perf counter incrementers used by _INTERRUPTIBLE
1.326 +
1.327 + static void bump_interrupted_before_count();
1.328 + static void bump_interrupted_during_count();
1.329 +
1.330 +#ifdef ASSERT
1.331 + static JavaThread* setup_interruptible_native();
1.332 + static void cleanup_interruptible_native(JavaThread* thread);
1.333 +#endif
1.334 +
1.335 + static sigset_t* unblocked_signals();
1.336 + static sigset_t* vm_signals();
1.337 + static sigset_t* allowdebug_blocked_signals();
1.338 +
1.339 + // %%% Following should be promoted to os.hpp:
1.340 + // Trace number of created threads
1.341 + static jint _os_thread_limit;
1.342 + static volatile jint _os_thread_count;
1.343 +
1.344 + // Minimum stack size a thread can be created with (allowing
1.345 + // the VM to completely create the thread and enter user code)
1.346 +
1.347 + static size_t min_stack_allowed;
1.348 +
1.349 + // Stack overflow handling
1.350 +
1.351 + static int max_register_window_saves_before_flushing();
1.352 +
1.353 + // Stack repair handling
1.354 +
1.355 + // none present
1.356 +
1.357 +};
1.358 +
1.359 +class PlatformEvent : public CHeapObj<mtInternal> {
1.360 + private:
1.361 + double CachePad [4] ; // increase odds that _mutex is sole occupant of cache line
1.362 + volatile int _Event ;
1.363 + int _nParked ;
1.364 + int _pipev [2] ;
1.365 + mutex_t _mutex [1] ;
1.366 + cond_t _cond [1] ;
1.367 + double PostPad [2] ;
1.368 +
1.369 + protected:
1.370 + // Defining a protected ctor effectively gives us an abstract base class.
1.371 + // That is, a PlatformEvent can never be instantiated "naked" but only
1.372 + // as a part of a ParkEvent (recall that ParkEvent extends PlatformEvent).
1.373 + // TODO-FIXME: make dtor private
1.374 + ~PlatformEvent() { guarantee (0, "invariant") ; }
1.375 + PlatformEvent() {
1.376 + int status;
1.377 + status = os::Solaris::cond_init(_cond);
1.378 + assert_status(status == 0, status, "cond_init");
1.379 + status = os::Solaris::mutex_init(_mutex);
1.380 + assert_status(status == 0, status, "mutex_init");
1.381 + _Event = 0 ;
1.382 + _nParked = 0 ;
1.383 + _pipev[0] = _pipev[1] = -1 ;
1.384 + }
1.385 +
1.386 + public:
1.387 + // Exercise caution using reset() and fired() -- they may require MEMBARs
1.388 + void reset() { _Event = 0 ; }
1.389 + int fired() { return _Event; }
1.390 + void park () ;
1.391 + int park (jlong millis) ;
1.392 + int TryPark () ;
1.393 + void unpark () ;
1.394 +} ;
1.395 +
1.396 +class PlatformParker : public CHeapObj<mtInternal> {
1.397 + protected:
1.398 + mutex_t _mutex [1] ;
1.399 + cond_t _cond [1] ;
1.400 +
1.401 + public: // TODO-FIXME: make dtor private
1.402 + ~PlatformParker() { guarantee (0, "invariant") ; }
1.403 +
1.404 + public:
1.405 + PlatformParker() {
1.406 + int status;
1.407 + status = os::Solaris::cond_init(_cond);
1.408 + assert_status(status == 0, status, "cond_init");
1.409 + status = os::Solaris::mutex_init(_mutex);
1.410 + assert_status(status == 0, status, "mutex_init");
1.411 + }
1.412 +} ;
1.413 +
1.414 +#endif // OS_SOLARIS_VM_OS_SOLARIS_HPP
