From 7f7b659ec5eb4911c6a62e86af3a379227c3eeb0 Mon Sep 17 00:00:00 2001 From: Rene Gollent Date: Mon, 2 Jul 2012 20:17:03 -0400 Subject: [PATCH] Use safer but slower approach to copying the string. --- src/system/kernel/arch/x86/arch_x86.S | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/system/kernel/arch/x86/arch_x86.S b/src/system/kernel/arch/x86/arch_x86.S index d5c51507f7..1ebcae0e82 100644 --- a/src/system/kernel/arch/x86/arch_x86.S +++ b/src/system/kernel/arch/x86/arch_x86.S @@ -286,9 +286,10 @@ FUNCTION(arch_cpu_user_strlcpy): cld .L_user_strlcpy_copy_loop: /* move data by bytes */ - movsb - cmpb $0,-1(%esi) - je .L_user_strlcpy_source_done + lodsb + stosb + test %al,%al + jz .L_user_strlcpy_source_done loop .L_user_strlcpy_copy_loop /* null terminate string */