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 *
23 */
24
25 #ifndef OS_BSD_VM_OS_BSD_HPP
26 #define OS_BSD_VM_OS_BSD_HPP
27
28 // Bsd_OS defines the interface to Bsd operating systems
29
30 // Information about the protection of the page at address '0' on this os.
31 static bool zero_page_read_protected() { return true; }
32
33 #ifdef __APPLE__
34 // Mac OS X doesn't support clock_gettime. Stub out the type, it is
35 // unused
36 typedef int clockid_t;
37 #endif
38
39 class Bsd {
40 friend class os;
41
42 // For signal-chaining
43 static bool libjsig_is_loaded; // libjsig that interposes sigaction(),
44 // __sigaction(), signal() is loaded
45 static struct sigaction *(*get_signal_action)(int);
46 static struct sigaction *get_preinstalled_handler(int);
47 static void save_preinstalled_handler(int, struct sigaction&);
48
49 static void check_signal_handler(int sig);
50
51 #ifdef __APPLE__
52 // mach_absolute_time
53 static mach_timebase_info_data_t _timebase_info;
54 static volatile uint64_t _max_abstime;
55 #else
56 static int (*_clock_gettime)(clockid_t, struct timespec *);
57 #endif
58
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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 *
23 */
24
25 #ifndef OS_BSD_VM_OS_BSD_HPP
26 #define OS_BSD_VM_OS_BSD_HPP
27
28 // Bsd_OS defines the interface to Bsd operating systems
29
30 // Information about the protection of the page at address '0' on this os.
31 static bool zero_page_read_protected() { return true; }
32
33 class Bsd {
34 friend class os;
35
36 // For signal-chaining
37 static bool libjsig_is_loaded; // libjsig that interposes sigaction(),
38 // __sigaction(), signal() is loaded
39 static struct sigaction *(*get_signal_action)(int);
40 static struct sigaction *get_preinstalled_handler(int);
41 static void save_preinstalled_handler(int, struct sigaction&);
42
43 static void check_signal_handler(int sig);
44
45 #ifdef __APPLE__
46 // mach_absolute_time
47 static mach_timebase_info_data_t _timebase_info;
48 static volatile uint64_t _max_abstime;
49 #else
50 static int (*_clock_gettime)(clockid_t, struct timespec *);
51 #endif
52
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