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comparison src/os/bsd/vm/os_bsd.hpp @ 14436:b0133e4187d3

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8028471: PPC64 (part 215): opto: Extend ImplicitNullCheck optimization. Summary: Fixed Implicit NULL check optimization for AIX, where the page at address '0' is only write-protected. Reviewed-by: kvn
author goetz
date Thu, 21 Nov 2013 18:29:34 -0800
parents faff125a1ead
children bb9356ec5967 917873d2983d
comparison
equal deleted inserted replaced
14435:da862781b584 14436:b0133e4187d3
24 24
25 #ifndef OS_BSD_VM_OS_BSD_HPP 25 #ifndef OS_BSD_VM_OS_BSD_HPP
26 #define OS_BSD_VM_OS_BSD_HPP 26 #define OS_BSD_VM_OS_BSD_HPP
27 27
28 // Bsd_OS defines the interface to Bsd operating systems 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; }
29 32
30 /* pthread_getattr_np comes with BsdThreads-0.9-7 on RedHat 7.1 */ 33 /* pthread_getattr_np comes with BsdThreads-0.9-7 on RedHat 7.1 */
31 typedef int (*pthread_getattr_func_type) (pthread_t, pthread_attr_t *); 34 typedef int (*pthread_getattr_func_type) (pthread_t, pthread_attr_t *);
32 35
33 #ifdef __APPLE__ 36 #ifdef __APPLE__