1
|
1 |
/*
|
|
2 |
* Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved.
|
|
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;
|
|
69 |
typedef enum lgrp_view {
|
|
70 |
LGRP_VIEW_CALLER, /* what's available to the caller */
|
|
71 |
LGRP_VIEW_OS /* what's available to operating system */
|
|
72 |
} lgrp_view_t;
|
|
73 |
|
|
74 |
typedef lgrp_id_t (*lgrp_home_func_t)(idtype_t idtype, id_t id);
|
|
75 |
typedef lgrp_cookie_t (*lgrp_init_func_t)(lgrp_view_t view);
|
|
76 |
typedef int (*lgrp_fini_func_t)(lgrp_cookie_t cookie);
|
|
77 |
typedef lgrp_id_t (*lgrp_root_func_t)(lgrp_cookie_t cookie);
|
|
78 |
typedef int (*lgrp_children_func_t)(lgrp_cookie_t cookie, lgrp_id_t parent,
|
|
79 |
lgrp_id_t *lgrp_array, uint_t lgrp_array_size);
|
|
80 |
typedef int (*lgrp_nlgrps_func_t)(lgrp_cookie_t cookie);
|
|
81 |
typedef int (*lgrp_cookie_stale_func_t)(lgrp_cookie_t cookie);
|
|
82 |
typedef int (*meminfo_func_t)(const uint64_t inaddr[], int addr_count,
|
|
83 |
const uint_t info_req[], int info_count,
|
|
84 |
uint64_t outdata[], uint_t validity[]);
|
|
85 |
|
|
86 |
static lgrp_home_func_t _lgrp_home;
|
|
87 |
static lgrp_init_func_t _lgrp_init;
|
|
88 |
static lgrp_fini_func_t _lgrp_fini;
|
|
89 |
static lgrp_root_func_t _lgrp_root;
|
|
90 |
static lgrp_children_func_t _lgrp_children;
|
|
91 |
static lgrp_nlgrps_func_t _lgrp_nlgrps;
|
|
92 |
static lgrp_cookie_stale_func_t _lgrp_cookie_stale;
|
|
93 |
static lgrp_cookie_t _lgrp_cookie;
|
|
94 |
|
|
95 |
static meminfo_func_t _meminfo;
|
|
96 |
|
|
97 |
// Large Page Support--mpss.
|
|
98 |
static bool set_mpss_range(caddr_t start, size_t bytes, size_t align);
|
|
99 |
|
|
100 |
static void init_thread_fpu_state(void);
|
|
101 |
|
|
102 |
static void try_enable_extended_io();
|
|
103 |
|
|
104 |
// For signal-chaining
|
|
105 |
static unsigned long sigs; // mask of signals that have
|
|
106 |
// preinstalled signal handlers
|
|
107 |
static struct sigaction *(*get_signal_action)(int);
|
|
108 |
static struct sigaction *get_preinstalled_handler(int);
|
|
109 |
static int (*get_libjsig_version)();
|
|
110 |
static void save_preinstalled_handler(int, struct sigaction&);
|
|
111 |
static void check_signal_handler(int sig);
|
|
112 |
|
|
113 |
// For overridable signals
|
|
114 |
static int _SIGinterrupt; // user-overridable INTERRUPT_SIGNAL
|
|
115 |
static int _SIGasync; // user-overridable ASYNC_SIGNAL
|
|
116 |
static void set_SIGinterrupt(int newsig) { _SIGinterrupt = newsig; }
|
|
117 |
static void set_SIGasync(int newsig) { _SIGasync = newsig; }
|
|
118 |
|
|
119 |
|
|
120 |
public:
|
|
121 |
// Large Page Support--ISM.
|
|
122 |
static bool largepage_range(char* addr, size_t size);
|
|
123 |
|
|
124 |
static int SIGinterrupt() { return _SIGinterrupt; }
|
|
125 |
static int SIGasync() { return _SIGasync; }
|
|
126 |
static address handler_start, handler_end; // start and end pc of thr_sighndlrinfo
|
|
127 |
|
|
128 |
static bool valid_stack_address(Thread* thread, address sp);
|
|
129 |
static bool valid_ucontext(Thread* thread, ucontext_t* valid, ucontext_t* suspect);
|
|
130 |
static ucontext_t* get_valid_uc_in_signal_handler(Thread* thread,
|
|
131 |
ucontext_t* uc);
|
|
132 |
|
|
133 |
static ExtendedPC ucontext_get_ExtendedPC(ucontext_t* uc);
|
|
134 |
static intptr_t* ucontext_get_sp(ucontext_t* uc);
|
|
135 |
// ucontext_get_fp() is only used by Solaris X86 (see note below)
|
|
136 |
static intptr_t* ucontext_get_fp(ucontext_t* uc);
|
|
137 |
|
|
138 |
// For Analyzer Forte AsyncGetCallTrace profiling support:
|
|
139 |
// Parameter ret_fp is only used by Solaris X86.
|
|
140 |
//
|
|
141 |
// We should have different declarations of this interface in
|
|
142 |
// os_solaris_i486.hpp and os_solaris_sparc.hpp, but that file
|
|
143 |
// provides extensions to the os class and not the Solaris class.
|
|
144 |
static ExtendedPC fetch_frame_from_ucontext(Thread* thread, ucontext_t* uc,
|
|
145 |
intptr_t** ret_sp, intptr_t** ret_fp);
|
|
146 |
|
|
147 |
static void hotspot_sigmask(Thread* thread);
|
|
148 |
|
|
149 |
protected:
|
|
150 |
// Solaris-specific interface goes here
|
|
151 |
static julong available_memory();
|
|
152 |
static julong physical_memory() { return _physical_memory; }
|
|
153 |
static julong _physical_memory;
|
|
154 |
static void initialize_system_info();
|
|
155 |
static int _dev_zero_fd;
|
|
156 |
static int get_dev_zero_fd() { return _dev_zero_fd; }
|
|
157 |
static void set_dev_zero_fd(int fd) { _dev_zero_fd = fd; }
|
|
158 |
static char* mmap_chunk(char *addr, size_t size, int flags, int prot);
|
|
159 |
static bool mpss_sanity_check(bool warn, size_t * page_size);
|
|
160 |
static bool ism_sanity_check (bool warn, size_t * page_size);
|
|
161 |
|
|
162 |
// Workaround for 4352906. thr_stksegment sometimes returns
|
|
163 |
// a bad value for the primordial thread's stack base when
|
|
164 |
// it is called more than one time.
|
|
165 |
// Workaround is to cache the initial value to avoid further
|
|
166 |
// calls to thr_stksegment.
|
|
167 |
// It appears that someone (Hotspot?) is trashing the user's
|
|
168 |
// proc_t structure (note that this is a system struct).
|
|
169 |
static address _main_stack_base;
|
|
170 |
|
|
171 |
public:
|
|
172 |
static void libthread_init();
|
|
173 |
static void synchronization_init();
|
|
174 |
static void liblgrp_init();
|
|
175 |
// Load miscellaneous symbols.
|
|
176 |
static void misc_sym_init();
|
|
177 |
// This boolean allows users to forward their own non-matching signals
|
|
178 |
// to JVM_handle_solaris_signal, harmlessly.
|
|
179 |
static bool signal_handlers_are_installed;
|
|
180 |
|
|
181 |
static void signal_sets_init();
|
|
182 |
static void install_signal_handlers();
|
|
183 |
static void set_signal_handler(int sig, bool set_installed, bool oktochain);
|
|
184 |
static void init_signal_mem();
|
|
185 |
static bool is_sig_ignored(int sig);
|
|
186 |
static void set_our_sigflags(int, int);
|
|
187 |
static int get_our_sigflags(int);
|
|
188 |
|
|
189 |
// For signal-chaining
|
|
190 |
static bool libjsig_is_loaded; // libjsig that interposes sigaction(),
|
|
191 |
// signal(), sigset() is loaded
|
|
192 |
static struct sigaction *get_chained_signal_action(int sig);
|
|
193 |
static bool chained_handler(int sig, siginfo_t *siginfo, void *context);
|
|
194 |
|
|
195 |
// The following allow us to link against both the old and new libthread (2.8)
|
|
196 |
// and exploit the new libthread functionality if available.
|
|
197 |
|
|
198 |
static bool T2_libthread() { return _T2_libthread; }
|
|
199 |
static void set_T2_libthread(bool T2_libthread) { _T2_libthread = T2_libthread; }
|
|
200 |
|
|
201 |
static int thr_getstate(thread_t tid, int *flag, unsigned *lwp, stack_t *ss, gregset_t rs)
|
|
202 |
{ return _thr_getstate(tid, flag, lwp, ss, rs); }
|
|
203 |
static void set_thr_getstate(int_fnP_thread_t_iP_uP_stack_tP_gregset_t func)
|
|
204 |
{ _thr_getstate = func; }
|
|
205 |
|
|
206 |
static int thr_setstate(thread_t tid, int flag, gregset_t rs) { return _thr_setstate(tid, flag, rs); }
|
|
207 |
static void set_thr_setstate(int_fnP_thread_t_i_gregset_t func) { _thr_setstate = func; }
|
|
208 |
|
|
209 |
static int thr_setmutator(thread_t tid, int enabled) { return _thr_setmutator(tid, enabled); }
|
|
210 |
static void set_thr_setmutator(int_fnP_thread_t_i func) { _thr_setmutator = func; }
|
|
211 |
|
|
212 |
static int thr_suspend_mutator(thread_t tid) { return _thr_suspend_mutator(tid); }
|
|
213 |
static void set_thr_suspend_mutator(int_fnP_thread_t func) { _thr_suspend_mutator = func; }
|
|
214 |
|
|
215 |
static int thr_continue_mutator(thread_t tid) { return _thr_continue_mutator(tid); }
|
|
216 |
static void set_thr_continue_mutator(int_fnP_thread_t func) { _thr_continue_mutator = func; }
|
|
217 |
|
|
218 |
// Allows us to switch between lwp and thread -based synchronization
|
|
219 |
static int mutex_lock(mutex_t *mx) { return _mutex_lock(mx); }
|
|
220 |
static int mutex_trylock(mutex_t *mx) { return _mutex_trylock(mx); }
|
|
221 |
static int mutex_unlock(mutex_t *mx) { return _mutex_unlock(mx); }
|
|
222 |
static int mutex_init(mutex_t *mx) { return _mutex_init(mx, os::Solaris::mutex_scope(), NULL); }
|
|
223 |
static int mutex_destroy(mutex_t *mx) { return _mutex_destroy(mx); }
|
|
224 |
static int mutex_scope() { return _mutex_scope; }
|
|
225 |
|
|
226 |
static void set_mutex_lock(int_fnP_mutex_tP func) { _mutex_lock = func; }
|
|
227 |
static void set_mutex_trylock(int_fnP_mutex_tP func) { _mutex_trylock = func; }
|
|
228 |
static void set_mutex_unlock(int_fnP_mutex_tP func) { _mutex_unlock = func; }
|
|
229 |
static void set_mutex_init(int_fnP_mutex_tP_i_vP func) { _mutex_init = func; }
|
|
230 |
static void set_mutex_destroy(int_fnP_mutex_tP func) { _mutex_destroy = func; }
|
|
231 |
static void set_mutex_scope(int scope) { _mutex_scope = scope; }
|
|
232 |
|
|
233 |
static int cond_timedwait(cond_t *cv, mutex_t *mx, timestruc_t *abst)
|
|
234 |
{ return _cond_timedwait(cv, mx, abst); }
|
|
235 |
static int cond_wait(cond_t *cv, mutex_t *mx) { return _cond_wait(cv, mx); }
|
|
236 |
static int cond_signal(cond_t *cv) { return _cond_signal(cv); }
|
|
237 |
static int cond_broadcast(cond_t *cv) { return _cond_broadcast(cv); }
|
|
238 |
static int cond_init(cond_t *cv) { return _cond_init(cv, os::Solaris::cond_scope(), NULL); }
|
|
239 |
static int cond_destroy(cond_t *cv) { return _cond_destroy(cv); }
|
|
240 |
static int cond_scope() { return _cond_scope; }
|
|
241 |
|
|
242 |
static void set_cond_timedwait(int_fnP_cond_tP_mutex_tP_timestruc_tP func)
|
|
243 |
{ _cond_timedwait = func; }
|
|
244 |
static void set_cond_wait(int_fnP_cond_tP_mutex_tP func) { _cond_wait = func; }
|
|
245 |
static void set_cond_signal(int_fnP_cond_tP func) { _cond_signal = func; }
|
|
246 |
static void set_cond_broadcast(int_fnP_cond_tP func) { _cond_broadcast = func; }
|
|
247 |
static void set_cond_init(int_fnP_cond_tP_i_vP func) { _cond_init = func; }
|
|
248 |
static void set_cond_destroy(int_fnP_cond_tP func) { _cond_destroy = func; }
|
|
249 |
static void set_cond_scope(int scope) { _cond_scope = scope; }
|
|
250 |
|
|
251 |
static void set_lgrp_home(lgrp_home_func_t func) { _lgrp_home = func; }
|
|
252 |
static void set_lgrp_init(lgrp_init_func_t func) { _lgrp_init = func; }
|
|
253 |
static void set_lgrp_fini(lgrp_fini_func_t func) { _lgrp_fini = func; }
|
|
254 |
static void set_lgrp_root(lgrp_root_func_t func) { _lgrp_root = func; }
|
|
255 |
static void set_lgrp_children(lgrp_children_func_t func) { _lgrp_children = func; }
|
|
256 |
static void set_lgrp_nlgrps(lgrp_nlgrps_func_t func) { _lgrp_nlgrps = func; }
|
|
257 |
static void set_lgrp_cookie_stale(lgrp_cookie_stale_func_t func) { _lgrp_cookie_stale = func; }
|
|
258 |
static void set_lgrp_cookie(lgrp_cookie_t cookie) { _lgrp_cookie = cookie; }
|
|
259 |
|
|
260 |
static id_t lgrp_home(idtype_t type, id_t id) { return _lgrp_home != NULL ? _lgrp_home(type, id) : -1; }
|
|
261 |
static lgrp_cookie_t lgrp_init(lgrp_view_t view) { return _lgrp_init != NULL ? _lgrp_init(view) : 0; }
|
|
262 |
static int lgrp_fini(lgrp_cookie_t cookie) { return _lgrp_fini != NULL ? _lgrp_fini(cookie) : -1; }
|
|
263 |
static lgrp_id_t lgrp_root(lgrp_cookie_t cookie) { return _lgrp_root != NULL ? _lgrp_root(cookie) : -1; };
|
|
264 |
static int lgrp_children(lgrp_cookie_t cookie, lgrp_id_t parent,
|
|
265 |
lgrp_id_t *lgrp_array, uint_t lgrp_array_size) {
|
|
266 |
return _lgrp_children != NULL ? _lgrp_children(cookie, parent, lgrp_array, lgrp_array_size) : -1;
|
|
267 |
}
|
|
268 |
static int lgrp_nlgrps(lgrp_cookie_t cookie) { return _lgrp_nlgrps != NULL ? _lgrp_nlgrps(cookie) : -1; }
|
|
269 |
static int lgrp_cookie_stale(lgrp_cookie_t cookie) {
|
|
270 |
return _lgrp_cookie_stale != NULL ? _lgrp_cookie_stale(cookie) : -1;
|
|
271 |
}
|
|
272 |
static lgrp_cookie_t lgrp_cookie() { return _lgrp_cookie; }
|
|
273 |
|
|
274 |
static void set_meminfo(meminfo_func_t func) { _meminfo = func; }
|
|
275 |
static int meminfo (const uint64_t inaddr[], int addr_count,
|
|
276 |
const uint_t info_req[], int info_count,
|
|
277 |
uint64_t outdata[], uint_t validity[]) {
|
|
278 |
return _meminfo != NULL ? _meminfo(inaddr, addr_count, info_req, info_count,
|
|
279 |
outdata, validity) : -1;
|
|
280 |
}
|
|
281 |
|
|
282 |
enum {
|
|
283 |
clear_interrupted = true
|
|
284 |
};
|
|
285 |
static void setup_interruptible(JavaThread* thread);
|
|
286 |
static void setup_interruptible_already_blocked(JavaThread* thread);
|
|
287 |
static JavaThread* setup_interruptible();
|
|
288 |
static void cleanup_interruptible(JavaThread* thread);
|
|
289 |
|
|
290 |
// perf counter incrementers used by _INTERRUPTIBLE
|
|
291 |
|
|
292 |
static void bump_interrupted_before_count();
|
|
293 |
static void bump_interrupted_during_count();
|
|
294 |
|
|
295 |
#ifdef ASSERT
|
|
296 |
static JavaThread* setup_interruptible_native();
|
|
297 |
static void cleanup_interruptible_native(JavaThread* thread);
|
|
298 |
#endif
|
|
299 |
|
|
300 |
static sigset_t* unblocked_signals();
|
|
301 |
static sigset_t* vm_signals();
|
|
302 |
static sigset_t* allowdebug_blocked_signals();
|
|
303 |
|
|
304 |
// %%% Following should be promoted to os.hpp:
|
|
305 |
// Trace number of created threads
|
|
306 |
static jint _os_thread_limit;
|
|
307 |
static volatile jint _os_thread_count;
|
|
308 |
|
|
309 |
// Minimum stack size a thread can be created with (allowing
|
|
310 |
// the VM to completely create the thread and enter user code)
|
|
311 |
|
|
312 |
static size_t min_stack_allowed;
|
|
313 |
|
|
314 |
// Stack overflow handling
|
|
315 |
|
|
316 |
static int max_register_window_saves_before_flushing();
|
|
317 |
|
|
318 |
// Stack repair handling
|
|
319 |
|
|
320 |
// none present
|
|
321 |
|
|
322 |
};
|
|
323 |
|
|
324 |
class PlatformEvent : public CHeapObj {
|
|
325 |
private:
|
|
326 |
double CachePad [4] ; // increase odds that _mutex is sole occupant of cache line
|
|
327 |
volatile int _Event ;
|
|
328 |
int _nParked ;
|
|
329 |
int _pipev [2] ;
|
|
330 |
mutex_t _mutex [1] ;
|
|
331 |
cond_t _cond [1] ;
|
|
332 |
double PostPad [2] ;
|
|
333 |
|
|
334 |
protected:
|
|
335 |
// Defining a protected ctor effectively gives us an abstract base class.
|
|
336 |
// That is, a PlatformEvent can never be instantiated "naked" but only
|
|
337 |
// as a part of a ParkEvent (recall that ParkEvent extends PlatformEvent).
|
|
338 |
// TODO-FIXME: make dtor private
|
|
339 |
~PlatformEvent() { guarantee (0, "invariant") ; }
|
|
340 |
PlatformEvent() {
|
|
341 |
int status;
|
|
342 |
status = os::Solaris::cond_init(_cond);
|
|
343 |
assert_status(status == 0, status, "cond_init");
|
|
344 |
status = os::Solaris::mutex_init(_mutex);
|
|
345 |
assert_status(status == 0, status, "mutex_init");
|
|
346 |
_Event = 0 ;
|
|
347 |
_nParked = 0 ;
|
|
348 |
_pipev[0] = _pipev[1] = -1 ;
|
|
349 |
}
|
|
350 |
|
|
351 |
public:
|
|
352 |
// Exercise caution using reset() and fired() -- they may require MEMBARs
|
|
353 |
void reset() { _Event = 0 ; }
|
|
354 |
int fired() { return _Event; }
|
|
355 |
void park () ;
|
|
356 |
int park (jlong millis) ;
|
|
357 |
int TryPark () ;
|
|
358 |
void unpark () ;
|
|
359 |
} ;
|
|
360 |
|
|
361 |
class PlatformParker : public CHeapObj {
|
|
362 |
protected:
|
|
363 |
mutex_t _mutex [1] ;
|
|
364 |
cond_t _cond [1] ;
|
|
365 |
|
|
366 |
public: // TODO-FIXME: make dtor private
|
|
367 |
~PlatformParker() { guarantee (0, "invariant") ; }
|
|
368 |
|
|
369 |
public:
|
|
370 |
PlatformParker() {
|
|
371 |
int status;
|
|
372 |
status = os::Solaris::cond_init(_cond);
|
|
373 |
assert_status(status == 0, status, "cond_init");
|
|
374 |
status = os::Solaris::mutex_init(_mutex);
|
|
375 |
assert_status(status == 0, status, "mutex_init");
|
|
376 |
}
|
|
377 |
} ;
|