Mercurial > hg > truffle
annotate src/os/solaris/vm/os_solaris.hpp @ 19579:3df56ce39922
Merge.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 24 Feb 2015 12:33:32 +0100 |
parents | 52b4284cb496 |
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0 | 1 /* |
10405 | 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef OS_SOLARIS_VM_OS_SOLARIS_HPP |
26 #define OS_SOLARIS_VM_OS_SOLARIS_HPP | |
27 | |
0 | 28 // Solaris_OS defines the interface to Solaris operating systems |
29 | |
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30 // Information about the protection of the page at address '0' on this os. |
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31 static bool zero_page_read_protected() { return true; } |
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32 |
0 | 33 class Solaris { |
34 friend class os; | |
35 | |
36 private: | |
37 | |
38 // Support for "new" libthread APIs for getting & setting thread context (2.8) | |
39 #define TRS_VALID 0 | |
40 #define TRS_NONVOLATILE 1 | |
41 #define TRS_LWPID 2 | |
42 #define TRS_INVALID 3 | |
43 | |
44 // _T2_libthread is true if we believe we are running with the newer | |
45 // SunSoft lib/lwp/libthread: default Solaris 9, available Solaris 8 | |
46 // which is a lightweight libthread that also supports all T1 | |
47 static bool _T2_libthread; | |
48 // These refer to new libthread interface functions | |
49 // They get intialized if we dynamically detect new libthread | |
50 static int_fnP_thread_t_iP_uP_stack_tP_gregset_t _thr_getstate; | |
51 static int_fnP_thread_t_i_gregset_t _thr_setstate; | |
52 static int_fnP_thread_t_i _thr_setmutator; | |
53 static int_fnP_thread_t _thr_suspend_mutator; | |
54 static int_fnP_thread_t _thr_continue_mutator; | |
55 // libthread_init sets the above, if the new functionality is detected | |
56 | |
57 // initialized to libthread or lwp synchronization primitives depending on UseLWPSychronization | |
58 static int_fnP_mutex_tP _mutex_lock; | |
59 static int_fnP_mutex_tP _mutex_trylock; | |
60 static int_fnP_mutex_tP _mutex_unlock; | |
61 static int_fnP_mutex_tP_i_vP _mutex_init; | |
62 static int_fnP_mutex_tP _mutex_destroy; | |
63 static int _mutex_scope; | |
64 | |
65 static int_fnP_cond_tP_mutex_tP_timestruc_tP _cond_timedwait; | |
66 static int_fnP_cond_tP_mutex_tP _cond_wait; | |
67 static int_fnP_cond_tP _cond_signal; | |
68 static int_fnP_cond_tP _cond_broadcast; | |
69 static int_fnP_cond_tP_i_vP _cond_init; | |
70 static int_fnP_cond_tP _cond_destroy; | |
71 static int _cond_scope; | |
72 | |
73 typedef uintptr_t lgrp_cookie_t; | |
74 typedef id_t lgrp_id_t; | |
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75 typedef int lgrp_rsrc_t; |
0 | 76 typedef enum lgrp_view { |
77 LGRP_VIEW_CALLER, /* what's available to the caller */ | |
78 LGRP_VIEW_OS /* what's available to operating system */ | |
79 } lgrp_view_t; | |
80 | |
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81 typedef uint_t (*getisax_func_t)(uint32_t* array, uint_t n); |
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82 |
0 | 83 typedef lgrp_id_t (*lgrp_home_func_t)(idtype_t idtype, id_t id); |
84 typedef lgrp_cookie_t (*lgrp_init_func_t)(lgrp_view_t view); | |
85 typedef int (*lgrp_fini_func_t)(lgrp_cookie_t cookie); | |
86 typedef lgrp_id_t (*lgrp_root_func_t)(lgrp_cookie_t cookie); | |
87 typedef int (*lgrp_children_func_t)(lgrp_cookie_t cookie, lgrp_id_t parent, | |
88 lgrp_id_t *lgrp_array, uint_t lgrp_array_size); | |
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89 typedef int (*lgrp_resources_func_t)(lgrp_cookie_t cookie, lgrp_id_t lgrp, |
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90 lgrp_id_t *lgrp_array, uint_t lgrp_array_size, |
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91 lgrp_rsrc_t type); |
0 | 92 typedef int (*lgrp_nlgrps_func_t)(lgrp_cookie_t cookie); |
93 typedef int (*lgrp_cookie_stale_func_t)(lgrp_cookie_t cookie); | |
94 typedef int (*meminfo_func_t)(const uint64_t inaddr[], int addr_count, | |
95 const uint_t info_req[], int info_count, | |
96 uint64_t outdata[], uint_t validity[]); | |
97 | |
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98 static getisax_func_t _getisax; |
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99 |
0 | 100 static lgrp_home_func_t _lgrp_home; |
101 static lgrp_init_func_t _lgrp_init; | |
102 static lgrp_fini_func_t _lgrp_fini; | |
103 static lgrp_root_func_t _lgrp_root; | |
104 static lgrp_children_func_t _lgrp_children; | |
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105 static lgrp_resources_func_t _lgrp_resources; |
0 | 106 static lgrp_nlgrps_func_t _lgrp_nlgrps; |
107 static lgrp_cookie_stale_func_t _lgrp_cookie_stale; | |
108 static lgrp_cookie_t _lgrp_cookie; | |
109 | |
110 static meminfo_func_t _meminfo; | |
111 | |
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112 // Large Page Support |
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113 static bool setup_large_pages(caddr_t start, size_t bytes, size_t align); |
0 | 114 |
115 static void init_thread_fpu_state(void); | |
116 | |
117 static void try_enable_extended_io(); | |
118 | |
119 // For signal-chaining | |
120 static unsigned long sigs; // mask of signals that have | |
121 // preinstalled signal handlers | |
122 static struct sigaction *(*get_signal_action)(int); | |
123 static struct sigaction *get_preinstalled_handler(int); | |
124 static int (*get_libjsig_version)(); | |
125 static void save_preinstalled_handler(int, struct sigaction&); | |
126 static void check_signal_handler(int sig); | |
127 // For overridable signals | |
128 static int _SIGinterrupt; // user-overridable INTERRUPT_SIGNAL | |
129 static int _SIGasync; // user-overridable ASYNC_SIGNAL | |
130 static void set_SIGinterrupt(int newsig) { _SIGinterrupt = newsig; } | |
131 static void set_SIGasync(int newsig) { _SIGasync = newsig; } | |
132 | |
133 public: | |
134 // Large Page Support--ISM. | |
135 static bool largepage_range(char* addr, size_t size); | |
136 | |
137 static int SIGinterrupt() { return _SIGinterrupt; } | |
138 static int SIGasync() { return _SIGasync; } | |
139 static address handler_start, handler_end; // start and end pc of thr_sighndlrinfo | |
140 | |
141 static bool valid_stack_address(Thread* thread, address sp); | |
142 static bool valid_ucontext(Thread* thread, ucontext_t* valid, ucontext_t* suspect); | |
143 static ucontext_t* get_valid_uc_in_signal_handler(Thread* thread, | |
144 ucontext_t* uc); | |
145 | |
146 static ExtendedPC ucontext_get_ExtendedPC(ucontext_t* uc); | |
147 static intptr_t* ucontext_get_sp(ucontext_t* uc); | |
148 // ucontext_get_fp() is only used by Solaris X86 (see note below) | |
149 static intptr_t* ucontext_get_fp(ucontext_t* uc); | |
10405 | 150 static address ucontext_get_pc(ucontext_t* uc); |
0 | 151 |
152 // For Analyzer Forte AsyncGetCallTrace profiling support: | |
153 // Parameter ret_fp is only used by Solaris X86. | |
154 // | |
155 // We should have different declarations of this interface in | |
156 // os_solaris_i486.hpp and os_solaris_sparc.hpp, but that file | |
157 // provides extensions to the os class and not the Solaris class. | |
158 static ExtendedPC fetch_frame_from_ucontext(Thread* thread, ucontext_t* uc, | |
159 intptr_t** ret_sp, intptr_t** ret_fp); | |
160 | |
161 static void hotspot_sigmask(Thread* thread); | |
162 | |
10405 | 163 // SR_handler |
164 static void SR_handler(Thread* thread, ucontext_t* uc); | |
0 | 165 protected: |
166 // Solaris-specific interface goes here | |
167 static julong available_memory(); | |
168 static julong physical_memory() { return _physical_memory; } | |
169 static julong _physical_memory; | |
170 static void initialize_system_info(); | |
171 static int _dev_zero_fd; | |
172 static int get_dev_zero_fd() { return _dev_zero_fd; } | |
173 static void set_dev_zero_fd(int fd) { _dev_zero_fd = fd; } | |
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174 static int commit_memory_impl(char* addr, size_t bytes, bool exec); |
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175 static int commit_memory_impl(char* addr, size_t bytes, |
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176 size_t alignment_hint, bool exec); |
0 | 177 static char* mmap_chunk(char *addr, size_t size, int flags, int prot); |
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178 static char* anon_mmap(char* requested_addr, size_t bytes, size_t alignment_hint, bool fixed); |
0 | 179 static bool mpss_sanity_check(bool warn, size_t * page_size); |
180 | |
181 // Workaround for 4352906. thr_stksegment sometimes returns | |
182 // a bad value for the primordial thread's stack base when | |
183 // it is called more than one time. | |
184 // Workaround is to cache the initial value to avoid further | |
185 // calls to thr_stksegment. | |
186 // It appears that someone (Hotspot?) is trashing the user's | |
187 // proc_t structure (note that this is a system struct). | |
188 static address _main_stack_base; | |
189 | |
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190 static void print_distro_info(outputStream* st); |
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191 static void print_libversion_info(outputStream* st); |
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192 |
0 | 193 public: |
194 static void libthread_init(); | |
195 static void synchronization_init(); | |
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196 static bool liblgrp_init(); |
0 | 197 // Load miscellaneous symbols. |
198 static void misc_sym_init(); | |
199 // This boolean allows users to forward their own non-matching signals | |
200 // to JVM_handle_solaris_signal, harmlessly. | |
201 static bool signal_handlers_are_installed; | |
202 | |
203 static void signal_sets_init(); | |
204 static void install_signal_handlers(); | |
205 static void set_signal_handler(int sig, bool set_installed, bool oktochain); | |
206 static void init_signal_mem(); | |
207 static bool is_sig_ignored(int sig); | |
208 static void set_our_sigflags(int, int); | |
209 static int get_our_sigflags(int); | |
210 | |
211 // For signal-chaining | |
212 static bool libjsig_is_loaded; // libjsig that interposes sigaction(), | |
213 // signal(), sigset() is loaded | |
214 static struct sigaction *get_chained_signal_action(int sig); | |
215 static bool chained_handler(int sig, siginfo_t *siginfo, void *context); | |
216 | |
217 // The following allow us to link against both the old and new libthread (2.8) | |
218 // and exploit the new libthread functionality if available. | |
219 | |
220 static bool T2_libthread() { return _T2_libthread; } | |
221 static void set_T2_libthread(bool T2_libthread) { _T2_libthread = T2_libthread; } | |
222 | |
223 static int thr_getstate(thread_t tid, int *flag, unsigned *lwp, stack_t *ss, gregset_t rs) | |
224 { return _thr_getstate(tid, flag, lwp, ss, rs); } | |
225 static void set_thr_getstate(int_fnP_thread_t_iP_uP_stack_tP_gregset_t func) | |
226 { _thr_getstate = func; } | |
227 | |
228 static int thr_setstate(thread_t tid, int flag, gregset_t rs) { return _thr_setstate(tid, flag, rs); } | |
229 static void set_thr_setstate(int_fnP_thread_t_i_gregset_t func) { _thr_setstate = func; } | |
230 | |
231 static int thr_setmutator(thread_t tid, int enabled) { return _thr_setmutator(tid, enabled); } | |
232 static void set_thr_setmutator(int_fnP_thread_t_i func) { _thr_setmutator = func; } | |
233 | |
234 static int thr_suspend_mutator(thread_t tid) { return _thr_suspend_mutator(tid); } | |
235 static void set_thr_suspend_mutator(int_fnP_thread_t func) { _thr_suspend_mutator = func; } | |
236 | |
237 static int thr_continue_mutator(thread_t tid) { return _thr_continue_mutator(tid); } | |
238 static void set_thr_continue_mutator(int_fnP_thread_t func) { _thr_continue_mutator = func; } | |
239 | |
240 // Allows us to switch between lwp and thread -based synchronization | |
241 static int mutex_lock(mutex_t *mx) { return _mutex_lock(mx); } | |
242 static int mutex_trylock(mutex_t *mx) { return _mutex_trylock(mx); } | |
243 static int mutex_unlock(mutex_t *mx) { return _mutex_unlock(mx); } | |
244 static int mutex_init(mutex_t *mx) { return _mutex_init(mx, os::Solaris::mutex_scope(), NULL); } | |
245 static int mutex_destroy(mutex_t *mx) { return _mutex_destroy(mx); } | |
246 static int mutex_scope() { return _mutex_scope; } | |
247 | |
248 static void set_mutex_lock(int_fnP_mutex_tP func) { _mutex_lock = func; } | |
249 static void set_mutex_trylock(int_fnP_mutex_tP func) { _mutex_trylock = func; } | |
250 static void set_mutex_unlock(int_fnP_mutex_tP func) { _mutex_unlock = func; } | |
251 static void set_mutex_init(int_fnP_mutex_tP_i_vP func) { _mutex_init = func; } | |
252 static void set_mutex_destroy(int_fnP_mutex_tP func) { _mutex_destroy = func; } | |
253 static void set_mutex_scope(int scope) { _mutex_scope = scope; } | |
254 | |
255 static int cond_timedwait(cond_t *cv, mutex_t *mx, timestruc_t *abst) | |
256 { return _cond_timedwait(cv, mx, abst); } | |
257 static int cond_wait(cond_t *cv, mutex_t *mx) { return _cond_wait(cv, mx); } | |
258 static int cond_signal(cond_t *cv) { return _cond_signal(cv); } | |
259 static int cond_broadcast(cond_t *cv) { return _cond_broadcast(cv); } | |
260 static int cond_init(cond_t *cv) { return _cond_init(cv, os::Solaris::cond_scope(), NULL); } | |
261 static int cond_destroy(cond_t *cv) { return _cond_destroy(cv); } | |
262 static int cond_scope() { return _cond_scope; } | |
263 | |
264 static void set_cond_timedwait(int_fnP_cond_tP_mutex_tP_timestruc_tP func) | |
265 { _cond_timedwait = func; } | |
266 static void set_cond_wait(int_fnP_cond_tP_mutex_tP func) { _cond_wait = func; } | |
267 static void set_cond_signal(int_fnP_cond_tP func) { _cond_signal = func; } | |
268 static void set_cond_broadcast(int_fnP_cond_tP func) { _cond_broadcast = func; } | |
269 static void set_cond_init(int_fnP_cond_tP_i_vP func) { _cond_init = func; } | |
270 static void set_cond_destroy(int_fnP_cond_tP func) { _cond_destroy = func; } | |
271 static void set_cond_scope(int scope) { _cond_scope = scope; } | |
272 | |
273 static void set_lgrp_home(lgrp_home_func_t func) { _lgrp_home = func; } | |
274 static void set_lgrp_init(lgrp_init_func_t func) { _lgrp_init = func; } | |
275 static void set_lgrp_fini(lgrp_fini_func_t func) { _lgrp_fini = func; } | |
276 static void set_lgrp_root(lgrp_root_func_t func) { _lgrp_root = func; } | |
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277 static void set_lgrp_children(lgrp_children_func_t func) { _lgrp_children = func; } |
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278 static void set_lgrp_resources(lgrp_resources_func_t func) { _lgrp_resources = func; } |
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279 static void set_lgrp_nlgrps(lgrp_nlgrps_func_t func) { _lgrp_nlgrps = func; } |
0 | 280 static void set_lgrp_cookie_stale(lgrp_cookie_stale_func_t func) { _lgrp_cookie_stale = func; } |
281 static void set_lgrp_cookie(lgrp_cookie_t cookie) { _lgrp_cookie = cookie; } | |
282 | |
283 static id_t lgrp_home(idtype_t type, id_t id) { return _lgrp_home != NULL ? _lgrp_home(type, id) : -1; } | |
284 static lgrp_cookie_t lgrp_init(lgrp_view_t view) { return _lgrp_init != NULL ? _lgrp_init(view) : 0; } | |
285 static int lgrp_fini(lgrp_cookie_t cookie) { return _lgrp_fini != NULL ? _lgrp_fini(cookie) : -1; } | |
286 static lgrp_id_t lgrp_root(lgrp_cookie_t cookie) { return _lgrp_root != NULL ? _lgrp_root(cookie) : -1; }; | |
287 static int lgrp_children(lgrp_cookie_t cookie, lgrp_id_t parent, | |
288 lgrp_id_t *lgrp_array, uint_t lgrp_array_size) { | |
289 return _lgrp_children != NULL ? _lgrp_children(cookie, parent, lgrp_array, lgrp_array_size) : -1; | |
290 } | |
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291 static int lgrp_resources(lgrp_cookie_t cookie, lgrp_id_t lgrp, |
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292 lgrp_id_t *lgrp_array, uint_t lgrp_array_size, |
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293 lgrp_rsrc_t type) { |
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294 return _lgrp_resources != NULL ? _lgrp_resources(cookie, lgrp, lgrp_array, lgrp_array_size, type) : -1; |
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295 } |
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296 |
0 | 297 static int lgrp_nlgrps(lgrp_cookie_t cookie) { return _lgrp_nlgrps != NULL ? _lgrp_nlgrps(cookie) : -1; } |
298 static int lgrp_cookie_stale(lgrp_cookie_t cookie) { | |
299 return _lgrp_cookie_stale != NULL ? _lgrp_cookie_stale(cookie) : -1; | |
300 } | |
301 static lgrp_cookie_t lgrp_cookie() { return _lgrp_cookie; } | |
302 | |
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303 static bool supports_getisax() { return _getisax != NULL; } |
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304 static uint_t getisax(uint32_t* array, uint_t n); |
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305 |
0 | 306 static void set_meminfo(meminfo_func_t func) { _meminfo = func; } |
307 static int meminfo (const uint64_t inaddr[], int addr_count, | |
308 const uint_t info_req[], int info_count, | |
309 uint64_t outdata[], uint_t validity[]) { | |
310 return _meminfo != NULL ? _meminfo(inaddr, addr_count, info_req, info_count, | |
311 outdata, validity) : -1; | |
312 } | |
313 | |
314 enum { | |
315 clear_interrupted = true | |
316 }; | |
317 static void setup_interruptible(JavaThread* thread); | |
318 static void setup_interruptible_already_blocked(JavaThread* thread); | |
319 static JavaThread* setup_interruptible(); | |
320 static void cleanup_interruptible(JavaThread* thread); | |
321 | |
322 // perf counter incrementers used by _INTERRUPTIBLE | |
323 | |
324 static void bump_interrupted_before_count(); | |
325 static void bump_interrupted_during_count(); | |
326 | |
327 #ifdef ASSERT | |
328 static JavaThread* setup_interruptible_native(); | |
329 static void cleanup_interruptible_native(JavaThread* thread); | |
330 #endif | |
331 | |
332 static sigset_t* unblocked_signals(); | |
333 static sigset_t* vm_signals(); | |
334 static sigset_t* allowdebug_blocked_signals(); | |
335 | |
336 // %%% Following should be promoted to os.hpp: | |
337 // Trace number of created threads | |
338 static jint _os_thread_limit; | |
339 static volatile jint _os_thread_count; | |
340 | |
341 // Minimum stack size a thread can be created with (allowing | |
342 // the VM to completely create the thread and enter user code) | |
343 | |
344 static size_t min_stack_allowed; | |
345 | |
346 // Stack overflow handling | |
347 | |
348 static int max_register_window_saves_before_flushing(); | |
349 | |
350 // Stack repair handling | |
351 | |
352 // none present | |
353 | |
354 }; | |
355 | |
6197 | 356 class PlatformEvent : public CHeapObj<mtInternal> { |
0 | 357 private: |
358 double CachePad [4] ; // increase odds that _mutex is sole occupant of cache line | |
359 volatile int _Event ; | |
360 int _nParked ; | |
361 int _pipev [2] ; | |
362 mutex_t _mutex [1] ; | |
363 cond_t _cond [1] ; | |
364 double PostPad [2] ; | |
365 | |
366 protected: | |
367 // Defining a protected ctor effectively gives us an abstract base class. | |
368 // That is, a PlatformEvent can never be instantiated "naked" but only | |
369 // as a part of a ParkEvent (recall that ParkEvent extends PlatformEvent). | |
370 // TODO-FIXME: make dtor private | |
371 ~PlatformEvent() { guarantee (0, "invariant") ; } | |
372 PlatformEvent() { | |
373 int status; | |
374 status = os::Solaris::cond_init(_cond); | |
375 assert_status(status == 0, status, "cond_init"); | |
376 status = os::Solaris::mutex_init(_mutex); | |
377 assert_status(status == 0, status, "mutex_init"); | |
378 _Event = 0 ; | |
379 _nParked = 0 ; | |
380 _pipev[0] = _pipev[1] = -1 ; | |
381 } | |
382 | |
383 public: | |
384 // Exercise caution using reset() and fired() -- they may require MEMBARs | |
385 void reset() { _Event = 0 ; } | |
386 int fired() { return _Event; } | |
387 void park () ; | |
388 int park (jlong millis) ; | |
389 int TryPark () ; | |
390 void unpark () ; | |
391 } ; | |
392 | |
6197 | 393 class PlatformParker : public CHeapObj<mtInternal> { |
0 | 394 protected: |
395 mutex_t _mutex [1] ; | |
396 cond_t _cond [1] ; | |
397 | |
398 public: // TODO-FIXME: make dtor private | |
399 ~PlatformParker() { guarantee (0, "invariant") ; } | |
400 | |
401 public: | |
402 PlatformParker() { | |
403 int status; | |
404 status = os::Solaris::cond_init(_cond); | |
405 assert_status(status == 0, status, "cond_init"); | |
406 status = os::Solaris::mutex_init(_mutex); | |
407 assert_status(status == 0, status, "mutex_init"); | |
408 } | |
409 } ; | |
1972 | 410 |
411 #endif // OS_SOLARIS_VM_OS_SOLARIS_HPP |