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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.
69 lines
2.4 KiB
ArmAsm
69 lines
2.4 KiB
ArmAsm
/* Compare two memory blocks for differences in the first COUNT bytes.
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Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <sysdep.h>
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#include "asm-syntax.h"
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/*
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INPUT PARAMETERS:
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block1 (sp + 4)
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block2 (sp + 8)
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len (sp + 12)
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*/
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.text
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ENTRY (memcmp)
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pushl %esi /* Save callee-safe registers. */
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movl %edi, %edx /* Note that %edx is not used and can
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so be used to save %edi. It's faster. */
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movl 8(%esp), %esi /* Load address of block #1. */
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movl 12(%esp), %edi /* Load address of block #2. */
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movl 16(%esp), %ecx /* Load maximal length of compare area. */
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cld /* Set direction of comparison. */
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xorl %eax, %eax /* Default result. */
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repe /* Compare at most %ecx bytes. */
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cmpsb
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jz L(1) /* If even last byte was equal we return 0. */
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/* The memory blocks are not equal. So result of the last
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subtraction is present in the carry flag. It is set when
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the byte in block #2 is bigger. In this case we have to
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return -1 (=0xffffffff), else 1. */
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sbbl %eax, %eax /* This is tricky. %eax == 0 and carry is set
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or not depending on last subtraction. */
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/* At this point %eax == 0, if the byte of block #1 was bigger, and
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0xffffffff if the last byte of block #2 was bigger. The later
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case is already correct but the former needs a little adjustment.
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Note that the following operation does not change 0xffffffff. */
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orb $1, %al /* Change 0 to 1. */
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L(1): popl %esi /* Restore registers. */
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movl %edx, %edi
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ret
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END (memcmp)
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#undef bcmp
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weak_alias (memcmp, bcmp)
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