[SCM] GNU Mach branch, master, updated. v1.5-89-g2b4c03c

[Justus Winter]

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- Log -----------------------------------------------------------------
commit 2b4c03cbc84090174a3cf5d27887bac8fb052b57
Author: Justus Winter <address@hidden>
Date:   Mon Sep 7 14:37:40 2015 +0200

    kern: fix loop reading the time value
    
    Previously, recent versions of gcc would hoist the loads out of the
    loop reading the time value.
    
    * kern/macros.h (access_once): New macro.
    * kern/mach_clock.c (host_get_time): Use the new macro to prevent the
    loads from being hoisted out of the loop.

-----------------------------------------------------------------------

Summary of changes:
 kern/mach_clock.c |    6 +++---
 kern/macros.h     |    2 ++
 2 files changed, 5 insertions(+), 3 deletions(-)


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