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59dd864187
* stdlib/ldiv.c: Deansideclized. Sun May 26 19:39:53 1996 Ulrich Drepper <drepper@cygnus.com> * intl/loadmsgcat.c (_nl_load_domain): Test correct variable after malloc. * string/Makefile (tester-ENV): New variable to suppress message translation in test. * string/tester.c: Add tests for strtok_r and strsep. * sysdeps/i386/i486/strcat.S: Correct some more 8bit operation <-> 32 bit operand conflicts. * sysdeps/i386/strsep.S: Wrapper around <sysdeps/i386/strtok.S> to produce strsep function. * sysdeps/i386/strtok.S: Optimized implementation of strtok function. * sysdeps/i386/strtok_r.S: Wrapper around <sysdeps/i386/strtok.S> to produce strtok_r function. * sysdeps/generic/strtok.c: Moved here from string/strtok.c. Corrected example in comment. * string/Makefile (routines): Add strtok_r. * sysdeps/generic/strtok_r.c: New file. Implement reentrant version of strtok_r. * string/string.h: Add prototype for strtok_r. * wcsmbs/wcstok.c: Handle illegal SAVE_PTR argument the same as in strtok_r. Sun May 26 13:28:23 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> * time/tzset.c (__tzset): Ignore leading : in $TZ; always try tzfile first and fall back to 1003.1 syntax only if it fails. * time/Makefile (install-others): Also install posix/ZONE and right/ZONE for each ZONE in $(zonenames). (z.% rule): Generate rules for right/ZONE and posix/ZONE targets too, the difference begin leapseconds vs /dev/null as 3rd dep. For original ZONE targets use $(leapseconds), to be set in Makeconfig. (target-zone-flavor): New variable. (tzcompile): Use it to get the right -d for posix/ and right/ flavors. * Makeconfig (leapseconds): New variable. * mach/Machrules (%.udeps rule): Depend on Machrules. Emit deps for .uh and .__h files. (%.uh, %.__h rules): Don't depend on %.defs; use #include <$*.defs> instead. Sun May 26 01:06:47 1996 Ulrich Drepper <drepper@cygnus.com> * stdlib/Makefile (routines): Add llabs, lldiv. * stdlib/llabs.c: New file. Implementation of return absolute value of long long argument. * stdlib/lldiv.c: New file. Implementation of division with remainder of long long argument. * stdlib/stdlib.h [__USE_GNU] (lldiv_t): New type for lldiv function. Define prototypes for lldiv and llabs functions. * locale/C-collate.c: Initialize _NL_COLLATE_NRULES element. * stdlib/strtod.c: Replace wchar_t with wint_t. The later is really the type for a single wide character. * string/strxfrm.c (print_val): Define separate version for use as wcsxfrm. Here we don't need UTF8 encoding. * wcsmbs/wchar.h: gcc-2.7.2-960517 finally introduces wint_t in <stddef.h>. Use this value and only for older gcc version define in place. (uwchar_t): Remove definition. * wcsmbs/wcscmp.c, wcsmbs/wcscoll.c, wcsmbs/wcsncmp.c, wcsmbs/wcsxfrm.c, wcsmbs/wmemcmp.c: : Don't use uwchar_t as unsigned type. wint_t is intended for this. Sat May 25 14:10:19 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> * sysdeps/unix/bsd/direntry.h: Use [1] instead of [0] for d_name to quiet -ansi -pedantic. * sysdeps/unix/common/direntry.h: Likewise. * login/Makefile (headers): Add lastlog.h. * login/lastlog.h: New file. * login/Makefile (CFLAGS): Don't append -D_THREAD_SAFE. * login/utmp.h [_REENTRANT || _THREAD_SAFE]: Replace this conditional with #ifdef __USE_REENTRANT. * features.h (__GNU_LIBRARY__): Set to 6. [_GNU_SOURCE] (_POSIX_SOURCE, _POSIX_C_SOURCE, _BSD_SOURCE, _SVID_SOURCE): Make sure they are all defined. * sysdeps/unix/sysv/linux/gnu/types.h: Instead of including <linux/posix_types.h>, define _LINUX_TYPES_DONT_EXPORT and then include <linux/types.h>. * resource/sys/resource.h: Remove trailing commas from enums. * sysdeps/generic/netinet/in.h: Remove trailing commas from enums. * sysdeps/unix/sysv/linux/netinet/in.h: Likewise.
330 lines
8.0 KiB
ArmAsm
330 lines
8.0 KiB
ArmAsm
/* strtok (str, delim) -- Return next DELIM separated token from STR.
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For Intel 80x86, x>=3.
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Copyright (C) 1996 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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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
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not, 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 <errnos.h>
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#include <sysdep.h>
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/* This file can be used for three variants of the strtok function:
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strtok:
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INPUT PARAMETER:
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str (sp + 4)
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delim (sp + 8)
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strtok_r:
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INPUT PARAMETER:
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str (sp + 4)
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delim (sp + 8)
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save_ptr (sp + 12)
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strsep:
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INPUT PARAMETERS
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str_ptr (sp + 4)
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delim (sp + 8)
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We do a common implementation here. */
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#if !defined (USE_AS_STRTOK_R) && !defined (USE_AS_STRSEP)
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.bss
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.local save_ptr
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ASM_TYPE_DIRECTIVE (save_ptr, @object)
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.size save_ptr, 4
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save_ptr:
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.space 4
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#define FUNCTION strtok
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#endif
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/* We use the possibility to do some more initialization
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for the strtok implementation. */
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.text
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Lillegal_argument:
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#ifndef PIC
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movl $EINVAL, C_SYMBOL_NAME(errno)
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xorl %eax, %eax
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#else
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# if defined (USE_AS_STRTOK_R) || defined (USE_AS_STRSEP)
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pushl %ebx /* Save PIC register. */
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call Lhere2
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Lhere2: popl %ebx
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addl $_GLOBAL_OFFSET_TABLE_+[.-Lhere2], %ebx
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# endif
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movl errno@GOT(%ebx), %ebx
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movl $EINVAL, (%ebx)
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xorl %eax, %eax
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popl %ebx
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#endif
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ret
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ENTRY (FUNCTION)
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movl 4(%esp), %edx /* Get start of string. */
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movl 8(%esp), %eax /* Get start of delimiter set. */
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#ifdef USE_AS_STRSEP
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/* %EDX does not yet contain the string starting point. Only
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a pointer to the location where it is stored. */
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movl (%edx), %edx
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#else
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# if !defined (USE_AS_STRTOK_R) && defined (PIC)
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pushl %ebx /* Save PIC register. */
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call Lhere
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Lhere: popl %ebx
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addl $_GLOBAL_OFFSET_TABLE_+[.-Lhere], %ebx
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# endif
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/* If the pointer is NULL we have to use the stored value of
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the last run. */
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cmpl $0, %edx
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jne L0
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# ifdef USE_AS_STRTOK_R
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/* The value is stored in the third argument. */
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movl 12(%esp), %edx
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movl (%edx), %edx
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# else
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/* The value is in the local variable defined above. But
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we have to take care for PIC code. */
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# ifndef PIC
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movl save_ptr, %edx
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# else
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movl save_ptr@GOTOFF(%ebx), %edx
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# endif
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# endif
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#endif
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/* Compare whether pointer is NULL. We are tolerant here
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because the C function do the same. */
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cmpl $0, %edx
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je Lillegal_argument
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#ifndef USE_AS_STRSEP
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L0:
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#endif
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/* First we create a table with flags for all possible characters.
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For the ASCII (7bit/8bit) or ISO-8859-X character sets which are
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supported by the C string functions we have 256 characters.
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Before inserting marks for the stop characters we clear the whole
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table. The unrolled form is much faster than a loop. */
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xorl %ecx, %ecx /* %ecx = 0 !!! */
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pushl %ecx /* make a 256 bytes long block filled with 0 */
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl %ecx
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pushl $0 /* These immediate values make the label 2 */
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pushl $0 /* to be aligned on a 16 byte boundary to */
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pushl $0 /* get a better performance of the loop. */
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pushl $0
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pushl $0
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pushl $0
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/* For understanding the following code remember that %ecx == 0 now.
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Although all the following instruction only modify %cl we always
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have a correct zero-extended 32-bit value in %ecx. */
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L2: movb (%eax), %cl /* get byte from stopset */
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testb %cl, %cl /* is NUL char? */
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jz L1 /* yes => start compare loop */
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movb %cl, (%esp,%ecx) /* set corresponding byte in stopset table */
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movb 1(%eax), %cl /* get byte from stopset */
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testb $0xff, %cl /* is NUL char? */
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jz L1 /* yes => start compare loop */
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movb %cl, (%esp,%ecx) /* set corresponding byte in stopset table */
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movb 2(%eax), %cl /* get byte from stopset */
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testb $0xff, %cl /* is NUL char? */
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jz L1 /* yes => start compare loop */
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movb %cl, (%esp,%ecx) /* set corresponding byte in stopset table */
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movb 3(%eax), %cl /* get byte from stopset */
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addl $4, %eax /* increment stopset pointer */
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movb %cl, (%esp,%ecx) /* set corresponding byte in stopset table */
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testb $0xff, %cl /* is NUL char? */
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jnz L2 /* no => process next dword from stopset */
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L1: leal -4(%edx), %eax /* prepare loop */
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/* We use a neat trick for the following loop. Normally we would
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have to test for two termination conditions
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1. a character in the stopset was found
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and
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2. the end of the string was found
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But as a sign that the chracter is in the stopset we store its
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value in the table. But the value of NUL is NUL so the loop
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terminates for NUL in every case. */
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L3: addl $4, %eax /* adjust pointer for full loop round */
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movb (%eax), %cl /* get byte from string */
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testb %cl, (%esp,%ecx) /* is it contained in stopset? */
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jz L4 /* no => start of token */
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movb 1(%eax), %cl /* get byte from string */
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testb %cl, (%esp,%ecx) /* is it contained in stopset? */
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jz L5 /* no => start of token */
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movb 2(%eax), %cl /* get byte from string */
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testb %cl, (%esp,%ecx) /* is it contained in stopset? */
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jz L6 /* no => start of token */
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movb 3(%eax), %cl /* get byte from string */
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testb %cl, (%esp,%ecx) /* is it contained in stopset? */
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jnz L3 /* yes => start of loop */
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incl %eax /* adjust pointer */
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L6: incl %eax
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L5: incl %eax
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/* Now we have to terminate the string. */
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L4: leal -4(%eax), %edx /* We use %EDX for the next run. */
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L7: addl $4, %edx /* adjust pointer for full loop round */
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movb (%edx), %cl /* get byte from string */
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cmpb %cl, (%esp,%ecx) /* is it contained in skipset? */
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je L8 /* yes => return */
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movb 1(%edx), %cl /* get byte from string */
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cmpb %cl, (%esp,%ecx) /* is it contained in skipset? */
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je L9 /* yes => return */
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movb 2(%edx), %cl /* get byte from string */
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cmpb %cl, (%esp,%ecx) /* is it contained in skipset? */
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je L10 /* yes => return */
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movb 3(%edx), %cl /* get byte from string */
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cmpb %cl, (%esp,%ecx) /* is it contained in skipset? */
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jne L7 /* no => start loop again */
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incl %edx /* adjust pointer */
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L10: incl %edx
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L9: incl %edx
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L8: /* Remove the stopset table. */
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addl $256, %esp
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cmpl %eax, %edx
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je LreturnNULL /* There was no token anymore. */
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movb $0, (%edx) /* Terminate string. */
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/* Are we at end of string? */
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cmpb $0, %cl
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je L11
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incl %edx
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L11:
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/* Store the pointer to the next character. */
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#ifdef USE_AS_STRTOK_R
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movl 12(%esp), %ecx
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movl %edx, (%ecx)
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#elif USE_AS_STRSEP
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movl 4(%esp), %ecx
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movl %edx, (%ecx)
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#else
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# ifndef PIC
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movl %edx, save_ptr
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# else
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movl %edx, save_ptr@GOTOFF(%ebx)
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popl %ebx
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# endif
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#endif
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ret
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LreturnNULL:
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xorl %eax, %eax
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/* Store NULL as pointer to the next character. */
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#ifdef USE_AS_STRTOK_R
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movl 12(%esp), %ecx
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movl %eax, (%ecx)
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#elif USE_AS_STRSEP
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movl 4(%esp), %ecx
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movl %eax, (%ecx)
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#else
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# ifndef PIC
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movl %eax, save_ptr
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# else
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movl %eax, save_ptr@GOTOFF(%ebx)
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popl %ebx
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# endif
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#endif
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ret
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