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Fix sparc memcpy data corruption when using niagara2 optimized routines.

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* sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S: Add missing
	membar to avoid block loads/stores to overlap previous stores.
This commit is contained in:
Jose E. Marchesi
2014-05-17 11:20:27 -07:00
committed by David S. Miller
parent e184a918bb
commit 834caf06f3
3 changed files with 8 additions and 1 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2014-05-17 Jose E. Marchesi <jose.marchesi@oracle.com>
[BZ #16958]
* sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S: Add missing
membar to avoid block loads/stores to overlap previous stores.
2014-05-17 Richard Henderson <rth@redhat.com>
* sysdeps/unix/sysv/linux/alpha/nptl/sysdep-cancel.h (PSEUDO):

2
NEWS
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@ -17,7 +17,7 @@ Version 2.20
16712, 16713, 16714, 16731, 16739, 16740, 16743, 16754, 16758, 16759,
16760, 16770, 16786, 16789, 16791, 16799, 16800, 16815, 16823, 16824,
16831, 16838, 16849, 16854, 16876, 16877, 16885, 16888, 16890, 16912,
16916, 16917, 16922, 16927, 16928, 16932, 16943.
16916, 16917, 16922, 16927, 16928, 16932, 16943, 16958.
* The minimum Linux kernel version that this version of the GNU C Library
can be used with is 2.6.32.

1
sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S
View File

@ -211,6 +211,7 @@ ENTRY(__memcpy_niagara2)
*/
VISEntryHalf
membar #Sync
alignaddr %o1, %g0, %g0
add %o1, (64 - 1), %o4