1 /*
2 * Copyright (c) 1999, 2014, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
57
58 #ifdef __APPLE__
59 // mach_absolute_time
60 static mach_timebase_info_data_t _timebase_info;
61 static volatile uint64_t _max_abstime;
62 #else
63 static int (*_clock_gettime)(clockid_t, struct timespec *);
64 #endif
65
66 static GrowableArray<int>* _cpu_to_node;
67
68 protected:
69
70 static julong _physical_memory;
71 static pthread_t _main_thread;
72 static int _page_size;
73
74 static julong available_memory();
75 static julong physical_memory() { return _physical_memory; }
76 static void initialize_system_info();
77
78 static bool supports_variable_stack_size();
79
80 static void rebuild_cpu_to_node_map();
81 static GrowableArray<int>* cpu_to_node() { return _cpu_to_node; }
82
83 static bool hugetlbfs_sanity_check(bool warn, size_t page_size);
84
85 public:
86
87 static void init_thread_fpu_state();
88 static pthread_t main_thread(void) { return _main_thread; }
89
90 static void hotspot_sigmask(Thread* thread);
91
92 static bool is_initial_thread(void);
93 static pid_t gettid();
94
95 static int page_size(void) { return _page_size; }
96 static void set_page_size(int val) { _page_size = val; }
97
98 static address ucontext_get_pc(ucontext_t* uc);
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1 /*
2 * Copyright (c) 1999, 2015, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
57
58 #ifdef __APPLE__
59 // mach_absolute_time
60 static mach_timebase_info_data_t _timebase_info;
61 static volatile uint64_t _max_abstime;
62 #else
63 static int (*_clock_gettime)(clockid_t, struct timespec *);
64 #endif
65
66 static GrowableArray<int>* _cpu_to_node;
67
68 protected:
69
70 static julong _physical_memory;
71 static pthread_t _main_thread;
72 static int _page_size;
73
74 static julong available_memory();
75 static julong physical_memory() { return _physical_memory; }
76 static void initialize_system_info();
77
78 static void rebuild_cpu_to_node_map();
79 static GrowableArray<int>* cpu_to_node() { return _cpu_to_node; }
80
81 static bool hugetlbfs_sanity_check(bool warn, size_t page_size);
82
83 public:
84
85 static void init_thread_fpu_state();
86 static pthread_t main_thread(void) { return _main_thread; }
87
88 static void hotspot_sigmask(Thread* thread);
89
90 static bool is_initial_thread(void);
91 static pid_t gettid();
92
93 static int page_size(void) { return _page_size; }
94 static void set_page_size(int val) { _page_size = val; }
95
96 static address ucontext_get_pc(ucontext_t* uc);
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