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[Bug libc/6791] New: Add PROT_SAO define to mman.h to support Strong Access Ordering
- From: "eberlein at us dot ibm dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: 30 Jul 2008 22:47:42 -0000
- Subject: [Bug libc/6791] New: Add PROT_SAO define to mman.h to support Strong Access Ordering
- Reply-to: sourceware-bugzilla at sourceware dot org
This enhancement request is to add the define for PROT_SAO to powerpc/mman.h to
match the latest changes in the Linux kernel. This define enables a new
hardware feature on Power7 to be used by applications to specify pages in a
process's address space that exhibit a stronger memory consistency model, Strong
Access Ordering.
The justification for the kernel change is in this changeset:
http://git.kernel.org/gitweb.cgi?p=linux/kernel/git/torvalds/
linux-2.6.git;a=commit;h=ef3d3246a0d06be622867d21af25f997aeeb105f
The change to powerpc/mman.h is
here:
http://git.kernel.org/gitweb.cgi?p=linux/kernel/git/torvalds/
linux-2.
6.git;a=commitdiff;h=aba46c5027cb59d98052231b36efcbbde9c77a1d;hp=b845f313d78e4e259ec449909e3bbadf77b53a6d
This patch will create the PROT_SAO define in
libc/sysdeps/unix/sysv/linux/powerpc/bits/mman.h to match the linux kernel
header in powerpc/mman.h.
--
Summary: Add PROT_SAO define to mman.h to support Strong Access
Ordering
Product: glibc
Version: unspecified
Status: NEW
Severity: enhancement
Priority: P2
Component: libc
AssignedTo: drepper at redhat dot com
ReportedBy: eberlein at us dot ibm dot com
CC: glibc-bugs at sources dot redhat dot com,rsa at us dot
ibm dot com
http://sourceware.org/bugzilla/show_bug.cgi?id=6791
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