Mercurial > hg > graal-compiler

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

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
line wrap: on
line diff
--- a/src/os/bsd/vm/os_bsd.hpp	Thu Nov 21 12:30:35 2013 -0800
+++ b/src/os/bsd/vm/os_bsd.hpp	Thu Nov 21 18:29:34 2013 -0800
@@ -27,6 +27,9 @@
 
 // Bsd_OS defines the interface to Bsd operating systems
 
+// Information about the protection of the page at address '0' on this os.
+static bool zero_page_read_protected() { return true; }
+
 /* pthread_getattr_np comes with BsdThreads-0.9-7 on RedHat 7.1 */
 typedef int (*pthread_getattr_func_type) (pthread_t, pthread_attr_t *);