lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-08-07 06:43:00 +03:00
Code Activity

Fix sparc memcpy data corruption when using niagara2 optimized routines.

Browse Source 
* 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
Download Patch File Download Diff File Expand all files Collapse all files

6
ChangeLog
View File

@@ -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> 2014-05-17 Richard Henderson <rth@redhat.com>
* sysdeps/unix/sysv/linux/alpha/nptl/sysdep-cancel.h (PSEUDO): * sysdeps/unix/sysv/linux/alpha/nptl/sysdep-cancel.h (PSEUDO):

2
NEWS
View File

@@ -17,7 +17,7 @@ Version 2.20
16712, 16713, 16714, 16731, 16739, 16740, 16743, 16754, 16758, 16759, 16712, 16713, 16714, 16731, 16739, 16740, 16743, 16754, 16758, 16759,
16760, 16770, 16786, 16789, 16791, 16799, 16800, 16815, 16823, 16824, 16760, 16770, 16786, 16789, 16791, 16799, 16800, 16815, 16823, 16824,
16831, 16838, 16849, 16854, 16876, 16877, 16885, 16888, 16890, 16912, 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 * The minimum Linux kernel version that this version of the GNU C Library
can be used with is 2.6.32. 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 VISEntryHalf
membar #Sync
alignaddr %o1, %g0, %g0 alignaddr %o1, %g0, %g0
add %o1, (64 - 1), %o4 add %o1, (64 - 1), %o4