glibc/glibc-swbz17949.patch
2015-02-11 16:57:31 -05:00

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BZ #17949.
commit 132a1328eccd20621b77f7810eebbeec0a1af187
Author: Evangelos Foutras <evangelos@foutrelis.com>
Date: Tue Feb 10 03:22:58 2015 +0000
Fix __memcpy_chk on non-SSE2 CPUs
In commit 8b4416d, the 1: jump label in __mempcpy_chk was accidentally
moved. This resulted in failures of mempcpy on CPU without SSE2.
diff --git a/NEWS b/NEWS
index 41bc551..d85e26f 100644
--- a/NEWS
+++ b/NEWS
@@ -9,7 +9,7 @@ Version 2.22
* The following bugs are resolved with this release:
- 4719, 17912, 17932, 17944.
+ 4719, 17912, 17932, 17944, 17949.
Version 2.21
diff --git a/sysdeps/i386/i686/multiarch/mempcpy_chk.S b/sysdeps/i386/i686/multiarch/mempcpy_chk.S
index 207b648..b6fa202 100644
--- a/sysdeps/i386/i686/multiarch/mempcpy_chk.S
+++ b/sysdeps/i386/i686/multiarch/mempcpy_chk.S
@@ -36,8 +36,8 @@ ENTRY(__mempcpy_chk)
cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx)
jne 1f
call __init_cpu_features
- leal __mempcpy_chk_ia32@GOTOFF(%ebx), %eax
-1: testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features@GOTOFF(%ebx)
+1: leal __mempcpy_chk_ia32@GOTOFF(%ebx), %eax
+ testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features@GOTOFF(%ebx)
jz 2f
leal __mempcpy_chk_sse2_unaligned@GOTOFF(%ebx), %eax
testl $bit_Fast_Unaligned_Load, FEATURE_OFFSET+index_Fast_Unaligned_Load+__cpu_features@GOTOFF(%ebx)