diff options
Diffstat (limited to 'arch/ia64/lib/strncpy_from_user.S')
| -rw-r--r-- | arch/ia64/lib/strncpy_from_user.S | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/arch/ia64/lib/strncpy_from_user.S b/arch/ia64/lib/strncpy_from_user.S deleted file mode 100644 index 49eb81b69cd2..000000000000 --- a/arch/ia64/lib/strncpy_from_user.S +++ /dev/null @@ -1,47 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Just like strncpy() except that if a fault occurs during copying, - * -EFAULT is returned. - * - * Inputs: - * in0: address of destination buffer - * in1: address of string to be copied - * in2: length of buffer in bytes - * Outputs: - * r8: -EFAULT in case of fault or number of bytes copied if no fault - * - * Copyright (C) 1998-2001 Hewlett-Packard Co - * Copyright (C) 1998-2001 David Mosberger-Tang <davidm@hpl.hp.com> - * - * 00/03/06 D. Mosberger Fixed to return proper return value (bug found by - * by Andreas Schwab <schwab@suse.de>). - */ - -#include <asm/asmmacro.h> -#include <asm/export.h> - -GLOBAL_ENTRY(__strncpy_from_user) - alloc r2=ar.pfs,3,0,0,0 - mov r8=0 - mov r9=in1 - ;; - add r10=in1,in2 - cmp.eq p6,p0=r0,in2 -(p6) br.ret.spnt.many rp - - // XXX braindead copy loop---this needs to be optimized -.Loop1: - EX(.Lexit, ld1 r8=[in1],1) - ;; - EX(.Lexit, st1 [in0]=r8,1) - cmp.ne p6,p7=r8,r0 - ;; -(p6) cmp.ne.unc p8,p0=in1,r10 -(p8) br.cond.dpnt.few .Loop1 - ;; -(p6) mov r8=in2 // buffer filled up---return buffer length -(p7) sub r8=in1,r9,1 // return string length (excluding NUL character) -[.Lexit:] - br.ret.sptk.many rp -END(__strncpy_from_user) -EXPORT_SYMBOL(__strncpy_from_user) |