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authorUlrich Drepper <drepper@redhat.com>1997-03-31 22:56:24 +0000
committerUlrich Drepper <drepper@redhat.com>1997-03-31 22:56:24 +0000
commit5929563ff20245bbaa1b3ca2f4bfcee623ac6fb5 (patch)
tree15b1ff0a40462018402078788148c0c99d188429 /sysdeps/i386/i486/strlen.S
parent3075e0e37c0e7cc2e6eb518c409e0769d058ed4b (diff)
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1997-04-01 00:37 Ulrich Drepper <drepper@cygnus.com> * math/Makefile: Prevent inlining for test-{float,double,longdouble}. * math/libm-test.c (initialize): Make strings unique and force values to memory. * posix/regex.c: Debug debugging code. * sysdeps/i386/asm-syntax.h: Define `L' macro to emit correct syntax for local label. * sysdeps/i386/add_n.S: Use correct local label syntax for the binary format. * sysdeps/i386/addmul_1.S: Likewise. * sysdeps/i386/lshift.S: Likewise. * sysdeps/i386/memchr.S: Likewise. * sysdeps/i386/memset.S: Likewise. * sysdeps/i386/mul_1.S: Likewise. * sysdeps/i386/rshift.S: Likewise. * sysdeps/i386/stpcpy.S: Likewise. * sysdeps/i386/stpncpy.S: Likewise. * sysdeps/i386/strchr.S: Likewise. * sysdeps/i386/strcspn.S: Likewise. * sysdeps/i386/strlen.S: Likewise. * sysdeps/i386/strpbrk.S: Likewise. * sysdeps/i386/strrchr.S: Likewise. * sysdeps/i386/strspn.S: Likewise. * sysdeps/i386/strtok.S: Likewise. * sysdeps/i386/sub_n.S: Likewise. * sysdeps/i386/submul_1.S: Likewise. * sysdeps/i386/i486/strcat.S: Likewise. * sysdeps/i386/i486/strlen.S: Likewise. * sysdeps/i386/i586/add_n.S: Likewise. * sysdeps/i386/i586/addmul_1.S: Likewise. * sysdeps/i386/i586/lshift.S: Likewise. * sysdeps/i386/i586/memset.S: Likewise. * sysdeps/i386/i586/mul_1.S: Likewise. * sysdeps/i386/i586/rshift.S: Likewise. * sysdeps/i386/i586/strchr.S: Likewise. * sysdeps/i386/i586/strlen.S: Likewise. * sysdeps/i386/i586/sub_n.S: Likewise. * sysdeps/i386/i586/submul_1.S: Likewise. * sysdeps/stub/s_log2l.c: Correct function name. * time/africa: Updated from ADO tzdata1997e. * time/aantarctica: Likewise. * time/asia: Likewise. * time/australia: Likewise. * time/europe: Likewise. * time/northamerica: Likewise. * time/southamerica: Likewise. * time/private.h: Updated from ADO tzcode1997d. * time/scheck.c: Likewise. 1997-03-31 12:42 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/powerpc/Dist: Add kernel_*.h files. 1997-03-23 01:41 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/strlen.s: Rewrote for more speed. * string/tst-strlen.c: Also test various string alignments. 1997-03-19 06:11 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/unix/sysv/linux/powerpc/statbuf.h: Removed. * sysdeps/unix/sysv/linux/powerpc/kernel_stat.h: Added. * sysdeps/powerpc/dl-machine.h (ELF_PREFERRED_ADDRESS): Assume program base address is 0x01800000 if we can't otherwise tell what it is. (elf_machine_rela): Replace `assertion failed' with real error messages. * sysdeps/powerpc/dl-machine.h: More comments, more GNU indenting. Put in extra parentheses to make explicit the relative precedence of + and >>. * sysdeps/powerpc/bsd-setjmp.S: Add `__setjmp' symbol so the tests pass. * sysdeps/powerpc/clone.S: Rewrite. Probably still doesn't work. * sysdeps/unix/sysv/linux/powerpc/sys/sysdep.h: Use .section "text" instead of .text. 1997-03-31 02:28 Ulrich Drepper <drepper@cygnus.com> * misc/tst-tsearch.c: Don't write to stderr, write to stdout instead. * inet/inet_ntoa.c (inet_ntoa): Complete rewrite. Now uses thread-specific memory in multi-threaded programs. * sysdeps/stub/s_exp2.c: New file. Stub version for exp2 function. * sysdeps/stub/s_exp2f.c: New file. * sysdeps/stub/s_exp2l.c: New file. Reported by a sun <asun@zoology.washington.edu>. * sysdeps/unix/sysv/linux/netatalk/atalk.h: Rename to... * sysdeps/unix/sysv/linux/netatalk/at.h: ...this. Suggested by a sun <asun@zoology.washington.edu>. 1997-03-30 14:53 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/netinet/ip_icmp.h: Add former contents of <netinet/icmp.h>. Patch by a sun <asun@zoology.washington.edu>. * sysdeps/powerpc/strlen.S: Added.
Diffstat (limited to 'sysdeps/i386/i486/strlen.S')
-rw-r--r--sysdeps/i386/i486/strlen.S86
1 files changed, 43 insertions, 43 deletions
diff --git a/sysdeps/i386/i486/strlen.S b/sysdeps/i386/i486/strlen.S
index a92067ab41..4a25011016 100644
--- a/sysdeps/i386/i486/strlen.S
+++ b/sysdeps/i386/i486/strlen.S
@@ -1,23 +1,23 @@
/* strlen(str) -- determine the length of the string STR.
-Optimized for Intel 80x86, x>=4.
-Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc.
-Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>.
-This file is part of the GNU C Library.
-
-The GNU C Library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Library General Public License as
-published by the Free Software Foundation; either version 2 of the
-License, or (at your option) any later version.
-
-The GNU C Library is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-Library General Public License for more details.
-
-You should have received a copy of the GNU Library General Public
-License along with the GNU C Library; see the file COPYING.LIB. If
-not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+ Optimized for Intel 80x86, x>=4.
+ Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
+ Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include <sysdep.h>
#include "asm-syntax.h"
@@ -33,21 +33,21 @@ ENTRY (strlen)
movl %ecx, %eax /* duplicate it */
andl $3, %ecx /* mask alignment bits */
- jz L1 /* aligned => start loop */
+ jz L(1) /* aligned => start loop */
cmpb %ch, (%eax) /* is byte NUL? */
- je L2 /* yes => return */
+ je L(2) /* yes => return */
incl %eax /* increment pointer */
xorl $3, %ecx /* was alignment = 3? */
- jz L1 /* yes => now it is aligned and start loop */
+ jz L(1) /* yes => now it is aligned and start loop */
cmpb %ch, (%eax) /* is byte NUL? */
- je L2 /* yes => return */
+ je L(2) /* yes => return */
addl $1, %eax /* increment pointer */
subl $1, %ecx /* was alignment = 2? */
- jz L1 /* yes => now it is aligned and start loop */
+ jz L(1) /* yes => now it is aligned and start loop */
cmpb %ch, (%eax) /* is byte NUL? */
- je L2 /* yes => return */
+ je L(2) /* yes => return */
/* Don't change the above `addl $1,%eax' and `subl $1, %ecx' into `incl %eax'
and `decl %ecx' resp. The additional two byte per instruction make the
@@ -61,73 +61,73 @@ ENTRY (strlen)
subl $15, %eax /* effectively +1 */
-L4: addl $16, %eax /* adjust pointer for full loop */
+L(4): addl $16, %eax /* adjust pointer for full loop */
-L1: movl (%eax), %ecx /* get word (= 4 bytes) in question */
+L(1): movl (%eax), %ecx /* get word (= 4 bytes) in question */
movl $0xfefefeff, %edx /* magic value */
addl %ecx, %edx /* add the magic value to the word. We get
carry bits reported for each byte which
is *not* 0 */
- jnc L3 /* highest byte is NUL => return pointer */
+ jnc L(3) /* highest byte is NUL => return pointer */
xorl %ecx, %edx /* (word+magic)^word */
orl $0xfefefeff, %edx /* set all non-carry bits */
incl %edx /* add 1: if one carry bit was *not* set
the addition will not result in 0. */
- jnz L3 /* found NUL => return pointer */
+ jnz L(3) /* found NUL => return pointer */
movl 4(%eax), %ecx /* get word (= 4 bytes) in question */
movl $0xfefefeff, %edx /* magic value */
addl %ecx, %edx /* add the magic value to the word. We get
carry bits reported for each byte which
is *not* 0 */
- jnc L5 /* highest byte is NUL => return pointer */
+ jnc L(5) /* highest byte is NUL => return pointer */
xorl %ecx, %edx /* (word+magic)^word */
orl $0xfefefeff, %edx /* set all non-carry bits */
incl %edx /* add 1: if one carry bit was *not* set
the addition will not result in 0. */
- jnz L5 /* found NUL => return pointer */
+ jnz L(5) /* found NUL => return pointer */
movl 8(%eax), %ecx /* get word (= 4 bytes) in question */
movl $0xfefefeff, %edx /* magic value */
addl %ecx, %edx /* add the magic value to the word. We get
carry bits reported for each byte which
is *not* 0 */
- jnc L6 /* highest byte is NUL => return pointer */
+ jnc L(6) /* highest byte is NUL => return pointer */
xorl %ecx, %edx /* (word+magic)^word */
orl $0xfefefeff, %edx /* set all non-carry bits */
incl %edx /* add 1: if one carry bit was *not* set
the addition will not result in 0. */
- jnz L6 /* found NUL => return pointer */
+ jnz L(6) /* found NUL => return pointer */
movl 12(%eax), %ecx /* get word (= 4 bytes) in question */
movl $0xfefefeff, %edx /* magic value */
addl %ecx, %edx /* add the magic value to the word. We get
carry bits reported for each byte which
is *not* 0 */
- jnc L7 /* highest byte is NUL => return pointer */
+ jnc L(7) /* highest byte is NUL => return pointer */
xorl %ecx, %edx /* (word+magic)^word */
orl $0xfefefeff, %edx /* set all non-carry bits */
incl %edx /* add 1: if one carry bit was *not* set
the addition will not result in 0. */
- jz L4 /* no NUL found => continue loop */
+ jz L(4) /* no NUL found => continue loop */
-L7: addl $4, %eax /* adjust pointer */
-L6: addl $4, %eax
-L5: addl $4, %eax
+L(7): addl $4, %eax /* adjust pointer */
+L(6): addl $4, %eax
+L(5): addl $4, %eax
-L3: testb %cl, %cl /* is first byte NUL? */
- jz L2 /* yes => return */
+L(3): testb %cl, %cl /* is first byte NUL? */
+ jz L(2) /* yes => return */
incl %eax /* increment pointer */
testb %ch, %ch /* is second byte NUL? */
- jz L2 /* yes => return */
+ jz L(2) /* yes => return */
incl %eax /* increment pointer */
testl $0xff0000, %ecx /* is third byte NUL? */
- jz L2 /* yes => return pointer */
+ jz L(2) /* yes => return pointer */
incl %eax /* increment pointer */
-L2: subl 4(%esp), %eax /* compute difference to string start */
+L(2): subl 4(%esp), %eax /* compute difference to string start */
ret
END (strlen)