28 lines
665 B
Diff
28 lines
665 B
Diff
From 81dcc7fb74a766f970800b9975e85b5fe7f6ea38 Mon Sep 17 00:00:00 2001
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From: Andreas Schwab <schwab@redhat.com>
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Date: Thu, 13 Oct 2011 13:33:58 +0200
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Subject: [PATCH] Check for zero size in memrchr for x86_64
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---
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ChangeLog | 2 ++
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sysdeps/x86_64/memrchr.S | 3 +++
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2 files changed, 5 insertions(+), 0 deletions(-)
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diff --git a/sysdeps/x86_64/memrchr.S b/sysdeps/x86_64/memrchr.S
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index 81b7a1c..70adca3 100644
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--- a/sysdeps/x86_64/memrchr.S
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+++ b/sysdeps/x86_64/memrchr.S
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@@ -282,6 +282,9 @@ L(return_null):
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.p2align 4
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L(length_less16_offset0):
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+ test %edx, %edx
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+ jz L(return_null)
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+
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mov %dl, %cl
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pcmpeqb (%rdi), %xmm1
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--
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1.7.6
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