Mercurial > hg > truffle
annotate src/os/solaris/vm/os_solaris.hpp @ 196:d1605aabd0a1 jdk7-b30
6719955: Update copyright year
Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell
| author | xdono |
|---|---|
| date | Wed, 02 Jul 2008 12:55:16 -0700 |
| parents | e3729351c946 |
| children | 85f1b9537f70 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 196 | 2 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 // Solaris_OS defines the interface to Solaris operating systems | |
| 26 | |
| 27 class Solaris { | |
| 28 friend class os; | |
| 29 | |
| 30 private: | |
| 31 | |
| 32 // Support for "new" libthread APIs for getting & setting thread context (2.8) | |
| 33 #define TRS_VALID 0 | |
| 34 #define TRS_NONVOLATILE 1 | |
| 35 #define TRS_LWPID 2 | |
| 36 #define TRS_INVALID 3 | |
| 37 | |
| 38 // _T2_libthread is true if we believe we are running with the newer | |
| 39 // SunSoft lib/lwp/libthread: default Solaris 9, available Solaris 8 | |
| 40 // which is a lightweight libthread that also supports all T1 | |
| 41 static bool _T2_libthread; | |
| 42 // These refer to new libthread interface functions | |
| 43 // They get intialized if we dynamically detect new libthread | |
| 44 static int_fnP_thread_t_iP_uP_stack_tP_gregset_t _thr_getstate; | |
| 45 static int_fnP_thread_t_i_gregset_t _thr_setstate; | |
| 46 static int_fnP_thread_t_i _thr_setmutator; | |
| 47 static int_fnP_thread_t _thr_suspend_mutator; | |
| 48 static int_fnP_thread_t _thr_continue_mutator; | |
| 49 // libthread_init sets the above, if the new functionality is detected | |
| 50 | |
| 51 // initialized to libthread or lwp synchronization primitives depending on UseLWPSychronization | |
| 52 static int_fnP_mutex_tP _mutex_lock; | |
| 53 static int_fnP_mutex_tP _mutex_trylock; | |
| 54 static int_fnP_mutex_tP _mutex_unlock; | |
| 55 static int_fnP_mutex_tP_i_vP _mutex_init; | |
| 56 static int_fnP_mutex_tP _mutex_destroy; | |
| 57 static int _mutex_scope; | |
| 58 | |
| 59 static int_fnP_cond_tP_mutex_tP_timestruc_tP _cond_timedwait; | |
| 60 static int_fnP_cond_tP_mutex_tP _cond_wait; | |
| 61 static int_fnP_cond_tP _cond_signal; | |
| 62 static int_fnP_cond_tP _cond_broadcast; | |
| 63 static int_fnP_cond_tP_i_vP _cond_init; | |
| 64 static int_fnP_cond_tP _cond_destroy; | |
| 65 static int _cond_scope; | |
| 66 | |
| 67 typedef uintptr_t lgrp_cookie_t; | |
| 68 typedef id_t lgrp_id_t; | |
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69 typedef int lgrp_rsrc_t; |
| 0 | 70 typedef enum lgrp_view { |
| 71 LGRP_VIEW_CALLER, /* what's available to the caller */ | |
| 72 LGRP_VIEW_OS /* what's available to operating system */ | |
| 73 } lgrp_view_t; | |
| 74 | |
| 75 typedef lgrp_id_t (*lgrp_home_func_t)(idtype_t idtype, id_t id); | |
| 76 typedef lgrp_cookie_t (*lgrp_init_func_t)(lgrp_view_t view); | |
| 77 typedef int (*lgrp_fini_func_t)(lgrp_cookie_t cookie); | |
| 78 typedef lgrp_id_t (*lgrp_root_func_t)(lgrp_cookie_t cookie); | |
| 79 typedef int (*lgrp_children_func_t)(lgrp_cookie_t cookie, lgrp_id_t parent, | |
| 80 lgrp_id_t *lgrp_array, uint_t lgrp_array_size); | |
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81 typedef int (*lgrp_resources_func_t)(lgrp_cookie_t cookie, lgrp_id_t lgrp, |
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82 lgrp_id_t *lgrp_array, uint_t lgrp_array_size, |
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83 lgrp_rsrc_t type); |
| 0 | 84 typedef int (*lgrp_nlgrps_func_t)(lgrp_cookie_t cookie); |
| 85 typedef int (*lgrp_cookie_stale_func_t)(lgrp_cookie_t cookie); | |
| 86 typedef int (*meminfo_func_t)(const uint64_t inaddr[], int addr_count, | |
| 87 const uint_t info_req[], int info_count, | |
| 88 uint64_t outdata[], uint_t validity[]); | |
| 89 | |
| 90 static lgrp_home_func_t _lgrp_home; | |
| 91 static lgrp_init_func_t _lgrp_init; | |
| 92 static lgrp_fini_func_t _lgrp_fini; | |
| 93 static lgrp_root_func_t _lgrp_root; | |
| 94 static lgrp_children_func_t _lgrp_children; | |
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95 static lgrp_resources_func_t _lgrp_resources; |
| 0 | 96 static lgrp_nlgrps_func_t _lgrp_nlgrps; |
| 97 static lgrp_cookie_stale_func_t _lgrp_cookie_stale; | |
| 98 static lgrp_cookie_t _lgrp_cookie; | |
| 99 | |
| 100 static meminfo_func_t _meminfo; | |
| 101 | |
| 102 // Large Page Support--mpss. | |
| 103 static bool set_mpss_range(caddr_t start, size_t bytes, size_t align); | |
| 104 | |
| 105 static void init_thread_fpu_state(void); | |
| 106 | |
| 107 static void try_enable_extended_io(); | |
| 108 | |
| 109 // For signal-chaining | |
| 110 static unsigned long sigs; // mask of signals that have | |
| 111 // preinstalled signal handlers | |
| 112 static struct sigaction *(*get_signal_action)(int); | |
| 113 static struct sigaction *get_preinstalled_handler(int); | |
| 114 static int (*get_libjsig_version)(); | |
| 115 static void save_preinstalled_handler(int, struct sigaction&); | |
| 116 static void check_signal_handler(int sig); | |
| 117 // For overridable signals | |
| 118 static int _SIGinterrupt; // user-overridable INTERRUPT_SIGNAL | |
| 119 static int _SIGasync; // user-overridable ASYNC_SIGNAL | |
| 120 static void set_SIGinterrupt(int newsig) { _SIGinterrupt = newsig; } | |
| 121 static void set_SIGasync(int newsig) { _SIGasync = newsig; } | |
| 122 | |
| 123 | |
| 124 public: | |
| 125 // Large Page Support--ISM. | |
| 126 static bool largepage_range(char* addr, size_t size); | |
| 127 | |
| 128 static int SIGinterrupt() { return _SIGinterrupt; } | |
| 129 static int SIGasync() { return _SIGasync; } | |
| 130 static address handler_start, handler_end; // start and end pc of thr_sighndlrinfo | |
| 131 | |
| 132 static bool valid_stack_address(Thread* thread, address sp); | |
| 133 static bool valid_ucontext(Thread* thread, ucontext_t* valid, ucontext_t* suspect); | |
| 134 static ucontext_t* get_valid_uc_in_signal_handler(Thread* thread, | |
| 135 ucontext_t* uc); | |
| 136 | |
| 137 static ExtendedPC ucontext_get_ExtendedPC(ucontext_t* uc); | |
| 138 static intptr_t* ucontext_get_sp(ucontext_t* uc); | |
| 139 // ucontext_get_fp() is only used by Solaris X86 (see note below) | |
| 140 static intptr_t* ucontext_get_fp(ucontext_t* uc); | |
| 141 | |
| 142 // For Analyzer Forte AsyncGetCallTrace profiling support: | |
| 143 // Parameter ret_fp is only used by Solaris X86. | |
| 144 // | |
| 145 // We should have different declarations of this interface in | |
| 146 // os_solaris_i486.hpp and os_solaris_sparc.hpp, but that file | |
| 147 // provides extensions to the os class and not the Solaris class. | |
| 148 static ExtendedPC fetch_frame_from_ucontext(Thread* thread, ucontext_t* uc, | |
| 149 intptr_t** ret_sp, intptr_t** ret_fp); | |
| 150 | |
| 151 static void hotspot_sigmask(Thread* thread); | |
| 152 | |
| 153 protected: | |
| 154 // Solaris-specific interface goes here | |
| 155 static julong available_memory(); | |
| 156 static julong physical_memory() { return _physical_memory; } | |
| 157 static julong _physical_memory; | |
| 158 static void initialize_system_info(); | |
| 159 static int _dev_zero_fd; | |
| 160 static int get_dev_zero_fd() { return _dev_zero_fd; } | |
| 161 static void set_dev_zero_fd(int fd) { _dev_zero_fd = fd; } | |
| 162 static char* mmap_chunk(char *addr, size_t size, int flags, int prot); | |
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163 static char* anon_mmap(char* requested_addr, size_t bytes, size_t alignment_hint, bool fixed); |
| 0 | 164 static bool mpss_sanity_check(bool warn, size_t * page_size); |
| 165 static bool ism_sanity_check (bool warn, size_t * page_size); | |
| 166 | |
| 167 // Workaround for 4352906. thr_stksegment sometimes returns | |
| 168 // a bad value for the primordial thread's stack base when | |
| 169 // it is called more than one time. | |
| 170 // Workaround is to cache the initial value to avoid further | |
| 171 // calls to thr_stksegment. | |
| 172 // It appears that someone (Hotspot?) is trashing the user's | |
| 173 // proc_t structure (note that this is a system struct). | |
| 174 static address _main_stack_base; | |
| 175 | |
| 176 public: | |
| 177 static void libthread_init(); | |
| 178 static void synchronization_init(); | |
| 179 static void liblgrp_init(); | |
| 180 // Load miscellaneous symbols. | |
| 181 static void misc_sym_init(); | |
| 182 // This boolean allows users to forward their own non-matching signals | |
| 183 // to JVM_handle_solaris_signal, harmlessly. | |
| 184 static bool signal_handlers_are_installed; | |
| 185 | |
| 186 static void signal_sets_init(); | |
| 187 static void install_signal_handlers(); | |
| 188 static void set_signal_handler(int sig, bool set_installed, bool oktochain); | |
| 189 static void init_signal_mem(); | |
| 190 static bool is_sig_ignored(int sig); | |
| 191 static void set_our_sigflags(int, int); | |
| 192 static int get_our_sigflags(int); | |
| 193 | |
| 194 // For signal-chaining | |
| 195 static bool libjsig_is_loaded; // libjsig that interposes sigaction(), | |
| 196 // signal(), sigset() is loaded | |
| 197 static struct sigaction *get_chained_signal_action(int sig); | |
| 198 static bool chained_handler(int sig, siginfo_t *siginfo, void *context); | |
| 199 | |
| 200 // The following allow us to link against both the old and new libthread (2.8) | |
| 201 // and exploit the new libthread functionality if available. | |
| 202 | |
| 203 static bool T2_libthread() { return _T2_libthread; } | |
| 204 static void set_T2_libthread(bool T2_libthread) { _T2_libthread = T2_libthread; } | |
| 205 | |
| 206 static int thr_getstate(thread_t tid, int *flag, unsigned *lwp, stack_t *ss, gregset_t rs) | |
| 207 { return _thr_getstate(tid, flag, lwp, ss, rs); } | |
| 208 static void set_thr_getstate(int_fnP_thread_t_iP_uP_stack_tP_gregset_t func) | |
| 209 { _thr_getstate = func; } | |
| 210 | |
| 211 static int thr_setstate(thread_t tid, int flag, gregset_t rs) { return _thr_setstate(tid, flag, rs); } | |
| 212 static void set_thr_setstate(int_fnP_thread_t_i_gregset_t func) { _thr_setstate = func; } | |
| 213 | |
| 214 static int thr_setmutator(thread_t tid, int enabled) { return _thr_setmutator(tid, enabled); } | |
| 215 static void set_thr_setmutator(int_fnP_thread_t_i func) { _thr_setmutator = func; } | |
| 216 | |
| 217 static int thr_suspend_mutator(thread_t tid) { return _thr_suspend_mutator(tid); } | |
| 218 static void set_thr_suspend_mutator(int_fnP_thread_t func) { _thr_suspend_mutator = func; } | |
| 219 | |
| 220 static int thr_continue_mutator(thread_t tid) { return _thr_continue_mutator(tid); } | |
| 221 static void set_thr_continue_mutator(int_fnP_thread_t func) { _thr_continue_mutator = func; } | |
| 222 | |
| 223 // Allows us to switch between lwp and thread -based synchronization | |
| 224 static int mutex_lock(mutex_t *mx) { return _mutex_lock(mx); } | |
| 225 static int mutex_trylock(mutex_t *mx) { return _mutex_trylock(mx); } | |
| 226 static int mutex_unlock(mutex_t *mx) { return _mutex_unlock(mx); } | |
| 227 static int mutex_init(mutex_t *mx) { return _mutex_init(mx, os::Solaris::mutex_scope(), NULL); } | |
| 228 static int mutex_destroy(mutex_t *mx) { return _mutex_destroy(mx); } | |
| 229 static int mutex_scope() { return _mutex_scope; } | |
| 230 | |
| 231 static void set_mutex_lock(int_fnP_mutex_tP func) { _mutex_lock = func; } | |
| 232 static void set_mutex_trylock(int_fnP_mutex_tP func) { _mutex_trylock = func; } | |
| 233 static void set_mutex_unlock(int_fnP_mutex_tP func) { _mutex_unlock = func; } | |
| 234 static void set_mutex_init(int_fnP_mutex_tP_i_vP func) { _mutex_init = func; } | |
| 235 static void set_mutex_destroy(int_fnP_mutex_tP func) { _mutex_destroy = func; } | |
| 236 static void set_mutex_scope(int scope) { _mutex_scope = scope; } | |
| 237 | |
| 238 static int cond_timedwait(cond_t *cv, mutex_t *mx, timestruc_t *abst) | |
| 239 { return _cond_timedwait(cv, mx, abst); } | |
| 240 static int cond_wait(cond_t *cv, mutex_t *mx) { return _cond_wait(cv, mx); } | |
| 241 static int cond_signal(cond_t *cv) { return _cond_signal(cv); } | |
| 242 static int cond_broadcast(cond_t *cv) { return _cond_broadcast(cv); } | |
| 243 static int cond_init(cond_t *cv) { return _cond_init(cv, os::Solaris::cond_scope(), NULL); } | |
| 244 static int cond_destroy(cond_t *cv) { return _cond_destroy(cv); } | |
| 245 static int cond_scope() { return _cond_scope; } | |
| 246 | |
| 247 static void set_cond_timedwait(int_fnP_cond_tP_mutex_tP_timestruc_tP func) | |
| 248 { _cond_timedwait = func; } | |
| 249 static void set_cond_wait(int_fnP_cond_tP_mutex_tP func) { _cond_wait = func; } | |
| 250 static void set_cond_signal(int_fnP_cond_tP func) { _cond_signal = func; } | |
| 251 static void set_cond_broadcast(int_fnP_cond_tP func) { _cond_broadcast = func; } | |
| 252 static void set_cond_init(int_fnP_cond_tP_i_vP func) { _cond_init = func; } | |
| 253 static void set_cond_destroy(int_fnP_cond_tP func) { _cond_destroy = func; } | |
| 254 static void set_cond_scope(int scope) { _cond_scope = scope; } | |
| 255 | |
| 256 static void set_lgrp_home(lgrp_home_func_t func) { _lgrp_home = func; } | |
| 257 static void set_lgrp_init(lgrp_init_func_t func) { _lgrp_init = func; } | |
| 258 static void set_lgrp_fini(lgrp_fini_func_t func) { _lgrp_fini = func; } | |
| 259 static void set_lgrp_root(lgrp_root_func_t func) { _lgrp_root = func; } | |
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260 static void set_lgrp_children(lgrp_children_func_t func) { _lgrp_children = func; } |
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261 static void set_lgrp_resources(lgrp_resources_func_t func) { _lgrp_resources = func; } |
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262 static void set_lgrp_nlgrps(lgrp_nlgrps_func_t func) { _lgrp_nlgrps = func; } |
| 0 | 263 static void set_lgrp_cookie_stale(lgrp_cookie_stale_func_t func) { _lgrp_cookie_stale = func; } |
| 264 static void set_lgrp_cookie(lgrp_cookie_t cookie) { _lgrp_cookie = cookie; } | |
| 265 | |
| 266 static id_t lgrp_home(idtype_t type, id_t id) { return _lgrp_home != NULL ? _lgrp_home(type, id) : -1; } | |
| 267 static lgrp_cookie_t lgrp_init(lgrp_view_t view) { return _lgrp_init != NULL ? _lgrp_init(view) : 0; } | |
| 268 static int lgrp_fini(lgrp_cookie_t cookie) { return _lgrp_fini != NULL ? _lgrp_fini(cookie) : -1; } | |
| 269 static lgrp_id_t lgrp_root(lgrp_cookie_t cookie) { return _lgrp_root != NULL ? _lgrp_root(cookie) : -1; }; | |
| 270 static int lgrp_children(lgrp_cookie_t cookie, lgrp_id_t parent, | |
| 271 lgrp_id_t *lgrp_array, uint_t lgrp_array_size) { | |
| 272 return _lgrp_children != NULL ? _lgrp_children(cookie, parent, lgrp_array, lgrp_array_size) : -1; | |
| 273 } | |
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274 static int lgrp_resources(lgrp_cookie_t cookie, lgrp_id_t lgrp, |
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275 lgrp_id_t *lgrp_array, uint_t lgrp_array_size, |
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276 lgrp_rsrc_t type) { |
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277 return _lgrp_resources != NULL ? _lgrp_resources(cookie, lgrp, lgrp_array, lgrp_array_size, type) : -1; |
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278 } |
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279 |
| 0 | 280 static int lgrp_nlgrps(lgrp_cookie_t cookie) { return _lgrp_nlgrps != NULL ? _lgrp_nlgrps(cookie) : -1; } |
| 281 static int lgrp_cookie_stale(lgrp_cookie_t cookie) { | |
| 282 return _lgrp_cookie_stale != NULL ? _lgrp_cookie_stale(cookie) : -1; | |
| 283 } | |
| 284 static lgrp_cookie_t lgrp_cookie() { return _lgrp_cookie; } | |
| 285 | |
| 286 static void set_meminfo(meminfo_func_t func) { _meminfo = func; } | |
| 287 static int meminfo (const uint64_t inaddr[], int addr_count, | |
| 288 const uint_t info_req[], int info_count, | |
| 289 uint64_t outdata[], uint_t validity[]) { | |
| 290 return _meminfo != NULL ? _meminfo(inaddr, addr_count, info_req, info_count, | |
| 291 outdata, validity) : -1; | |
| 292 } | |
| 293 | |
| 294 enum { | |
| 295 clear_interrupted = true | |
| 296 }; | |
| 297 static void setup_interruptible(JavaThread* thread); | |
| 298 static void setup_interruptible_already_blocked(JavaThread* thread); | |
| 299 static JavaThread* setup_interruptible(); | |
| 300 static void cleanup_interruptible(JavaThread* thread); | |
| 301 | |
| 302 // perf counter incrementers used by _INTERRUPTIBLE | |
| 303 | |
| 304 static void bump_interrupted_before_count(); | |
| 305 static void bump_interrupted_during_count(); | |
| 306 | |
| 307 #ifdef ASSERT | |
| 308 static JavaThread* setup_interruptible_native(); | |
| 309 static void cleanup_interruptible_native(JavaThread* thread); | |
| 310 #endif | |
| 311 | |
| 312 static sigset_t* unblocked_signals(); | |
| 313 static sigset_t* vm_signals(); | |
| 314 static sigset_t* allowdebug_blocked_signals(); | |
| 315 | |
| 316 // %%% Following should be promoted to os.hpp: | |
| 317 // Trace number of created threads | |
| 318 static jint _os_thread_limit; | |
| 319 static volatile jint _os_thread_count; | |
| 320 | |
| 321 // Minimum stack size a thread can be created with (allowing | |
| 322 // the VM to completely create the thread and enter user code) | |
| 323 | |
| 324 static size_t min_stack_allowed; | |
| 325 | |
| 326 // Stack overflow handling | |
| 327 | |
| 328 static int max_register_window_saves_before_flushing(); | |
| 329 | |
| 330 // Stack repair handling | |
| 331 | |
| 332 // none present | |
| 333 | |
| 334 }; | |
| 335 | |
| 336 class PlatformEvent : public CHeapObj { | |
| 337 private: | |
| 338 double CachePad [4] ; // increase odds that _mutex is sole occupant of cache line | |
| 339 volatile int _Event ; | |
| 340 int _nParked ; | |
| 341 int _pipev [2] ; | |
| 342 mutex_t _mutex [1] ; | |
| 343 cond_t _cond [1] ; | |
| 344 double PostPad [2] ; | |
| 345 | |
| 346 protected: | |
| 347 // Defining a protected ctor effectively gives us an abstract base class. | |
| 348 // That is, a PlatformEvent can never be instantiated "naked" but only | |
| 349 // as a part of a ParkEvent (recall that ParkEvent extends PlatformEvent). | |
| 350 // TODO-FIXME: make dtor private | |
| 351 ~PlatformEvent() { guarantee (0, "invariant") ; } | |
| 352 PlatformEvent() { | |
| 353 int status; | |
| 354 status = os::Solaris::cond_init(_cond); | |
| 355 assert_status(status == 0, status, "cond_init"); | |
| 356 status = os::Solaris::mutex_init(_mutex); | |
| 357 assert_status(status == 0, status, "mutex_init"); | |
| 358 _Event = 0 ; | |
| 359 _nParked = 0 ; | |
| 360 _pipev[0] = _pipev[1] = -1 ; | |
| 361 } | |
| 362 | |
| 363 public: | |
| 364 // Exercise caution using reset() and fired() -- they may require MEMBARs | |
| 365 void reset() { _Event = 0 ; } | |
| 366 int fired() { return _Event; } | |
| 367 void park () ; | |
| 368 int park (jlong millis) ; | |
| 369 int TryPark () ; | |
| 370 void unpark () ; | |
| 371 } ; | |
| 372 | |
| 373 class PlatformParker : public CHeapObj { | |
| 374 protected: | |
| 375 mutex_t _mutex [1] ; | |
| 376 cond_t _cond [1] ; | |
| 377 | |
| 378 public: // TODO-FIXME: make dtor private | |
| 379 ~PlatformParker() { guarantee (0, "invariant") ; } | |
| 380 | |
| 381 public: | |
| 382 PlatformParker() { | |
| 383 int status; | |
| 384 status = os::Solaris::cond_init(_cond); | |
| 385 assert_status(status == 0, status, "cond_init"); | |
| 386 status = os::Solaris::mutex_init(_mutex); | |
| 387 assert_status(status == 0, status, "mutex_init"); | |
| 388 } | |
| 389 } ; |