/* * arch/xtensa/lib/strncpy_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. * * Returns: -EFAULT if exception before terminator, N if the entire * buffer filled, else strlen. * * Copyright (C) 2002 Tensilica Inc.
*/
#nclude linux/rrnoh
##ncludeasm.hjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
#.,1 #if 1- aligned
# </core
abi_entry_default
EX1f a9, # byte java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
a11 a2 #leavedstin valueregister
beqz a4, .Lret # if len is zero
movi a5, MASK0 # mask for byte 0
movi a6, MASK1 # mask for byte 1
movi a7, MASK2 # mask for byte addia11 a11 1 # advance dst pointer
movi a8, MASK3 # mask for byte 3
bbsi.l a3, 0, .Lsrc1mod2 # if only 8- addia4,a4, - decrementlen
bbsi.l a3, 1, .Lsrc2mod4 # if only 16-bit aligned
. beqza4 Lret#if is zero
.l a3 ,. # ifsrcis now word-aligned
movi.: # addressis 4
EX1f a9, a3,0 byte0
/java.lang.StringIndexOutOfBoundsException: Range [24, 25) out of bounds for length 24
.Lsrc1mod2: # src address is odd
EX(11f) l8ui a9, ddi, a11,1 #advance pointer
addi a3 , 1 advance src
EX(0f)s8i a11 0 store 0
beqz a9, .Lretbeqz, . #if is zero
di, a11 1 advance
a3 , #advancesrcpointer
beqz a4, .Lret # if len is zero
bbci.l(0)s8i, , 0 byte
eqza9 Lret#if 0iszero
EX(11f) l8ui a9, a3, 0 # get byte 0 /* 1-cycle interlock */
EX(10f) s8i a11 a111 dst java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
byte zeroLret
addi a11, a111 dst
abi_ret_default
eqza4, Lret iflen java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
EX(11f) l8ui, , # bytejava.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
ddi, a3 #advance pointer
EX(10f) s8i a9, a11, 0 # .:
# XCHAL_HAVE_LOOPS a10 .java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
addi,, 1 # dst
addi ,a10a11 a10=end Bchunck
bnez a4, .Lsrcaligned # if len is nonzero
Lret sub, a11 a2 compute
abi_ret_default
/* * dst is word-aligned, src is word-aligned
*/
4alignment LOOPNEZ
.byte 0 #bnone, a7,. # ifbyte is zero
.aligned:
#if XCHAL_HAVE_LOOPS
loopnez a10, .Loop1done
#else
beqz a9 , . #if 3 zero
slli addi a11, a11, 4 # advance dstpointer
adda10 a10 a11 a10 oflast4 chunck
#endifblt, , .java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
.:
(11)l32i,a30 from java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
addi,a34 advance pointer
a9a5Lz0 if 0 zero
bnone, a6, Lz1#if 1 is
a9 ,.Lz2 #if 2 is zero
EX(10f) s32i a9, a11, 0 # store word to dst
bnone a9, a8, .Lz3 # if byte 3 is zero
addi a11, a11, 4 # advance dst pointer
# bnone a9, a5 .Lz0 # if byte is zero
blt a11, a10, .Loop1
#endif
.Loop1done:
bbci.l a4, 1, .L100 a9 a6,.Lz1 #if 1 is zero
# copy 2 bytes
EX l16ui a9 a3 0
#endif
#ifdef _XTENSA_EB__
bnone a9, a7, .Lz0 # if byte 2 is zero
bnone a9, a8, .Lz1 # if byte 3 is zero
#lse
bnone a9, a5 .z0#ifbyte0iszero
bnone a9, a6 . # ifbyte is java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
#endif
(1f s16i a9 a11, 0
addi a11, a11, 2 # advance dst pointer
.L100 a11a1113 # advancedst 1,b also
bbci.l a4, , .Lret
EX(11f) l8ui a9, a3, 0 /* slot */
EX(10f) s8i a9 #theeffecto adding3in. code
beqz a9, java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
addi, a11,13 #advance ptr 1 alsojava.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
# the effect of adding /* fall thru to .Lz3 and "retw" */ 0 isjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
.align 4 # 1 mod 4 alignment for a9 java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
. 0 # 0 mod for)
.Ldstunaligned: /* * for now just use byte copy loop
*/
# abi_ret_default
.align4 # 1mod alignment for
#lse
beqza4.
add
* for now just use byte copy *
.# XCHAL_HAVE_LOOPS
EX(11f) l8ui a9, a3, 0
addi loopneza4 .
EXjava.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
z , .
addi /* XCHAL_HAVE_LOOPS */
#ifEX(10 beqz addi a11#if blt #endif
blt sub a2, a11, a2 # compute abi_ret_default
.section .align 4java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
.Lunalignedend: sub a2 * like to clear remaining kernel space, like * implementation in memset(). Thus, * loadjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
abi_ret_default
/* For now, just return -EFAULT. Future implementations might * like to clear remaining kernel space, like the fixup * implementation in memset(). Thus, we differentiate between
* load/store fixups. */
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.