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Diffstat (limited to 'arch/mips/lib/strlen_user.S')
| -rw-r--r-- | arch/mips/lib/strlen_user.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/mips/lib/strlen_user.S b/arch/mips/lib/strlen_user.S new file mode 100644 index 000000000..3ef8ed18d --- /dev/null +++ b/arch/mips/lib/strlen_user.S @@ -0,0 +1,33 @@ +/* + * arch/mips/lib/strlen_user.S + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (c) 1996 by Ralf Baechle + */ +#include <asm/asm.h> +#include <asm/regdef.h> +#include <asm/sgidefs.h> + +/* + * Return the size of a string (including the ending 0) + * + * Return 0 for error + */ +LEAF(__strlen_user) + move v0,zero +1: lb t0,(a0) + LONG_ADDIU v0,1 + LONG_ADDIU a0,1 + bnez t0,1b + jr ra + END(strlen_user) + + .section __ex_table,"a" + PTR 1b,fault + .text + +fault: move v0,zero + jr ra |