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authorUlrich Drepper <drepper@redhat.com>1997-08-27 20:26:10 +0000
committerUlrich Drepper <drepper@redhat.com>1997-08-27 20:26:10 +0000
commit92f1da4da04a7a86ddee91be5eaf0b10c333ac64 (patch)
tree2a10ce9e4e407e7e5b5ca092ca0947d234b5ff60 /sysdeps/i386/bits
parent22be878ecbc66606371bd33258f56e6711e6ba7a (diff)
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1997-08-10 19:17 Philip Blundell <Philip.Blundell@pobox.com> * nss/nss_db/db-XXX.c: Include <db_185.h> not <db.h>. Somebody should update this to use the new db API. * nss/nss_db/db-netgrp.c: Likewise. * nss/nss_db/db-alias.c: Likewise. * db2/Makefile: Makefile for db-2.x in glibc. 1997-08-27 21:20 Ulrich Drepper <drepper@cygnus.com> * csu/Makefile (before-compile): New goal. Make sure abi-tag.h is generated. [$(elf)=yes] (asm-CPPFLAGS): Make sure abi-tag.h file can be found. * Makeconfig [$(build-omitfp)=yes] (CFLAGS-.o): Add -D__USE_STRING_INLINES. * string/string.f: Move strnlen optimization after inclusion of <bits/string.h>. Include <bits/string.h> only if __USE_STRING_INLINES is defined. * sysdeps/generic/memcpy.c: Undef memcpy to allow macro of this name in <bits/string.h>. * sysdeps/generic/memset.c: Likewise. * sysdeps/i386/string.h: i386 optimized string functions. * sysdeps/i386/i486string.h: i486+ optimized string functions. * Makefile (subdirs): Change db to db2. * shlib-versions: Bump libdb verion number to 3. * include/db.h: Include from db2 directory. * include/db_185.h: New file. * sysdeps/i386/Makefile [$(subdirs)=db2] (CPPFLAGS): Add macros to provide spinlock information for db2. * sysdeps/m68k/m68020/Makefile: New file. Likewise. * sysdeps/sparc/Makefile: New file. Likewise. * sysdeps/unix/sysv/linux/Makefile [$(subdirs)=db2] (CPPFLAGS): Add -DHAVE_LLSEEK. * db2/config.h: Hand-edited config file for db2 in glibc. * db2/compat.h: New file from db-2.3.4. * db2/db.h: Likewise. * db2/db_185.h: Likewise. * db2/db_int.h: Likewise. * db2/makedb.c: Likewise. * db2/btree/bt_close.c: Likewise. * db2/btree/bt_compare.c: Likewise. * db2/btree/bt_conv.c: Likewise. * db2/btree/bt_cursor.c: Likewise. * db2/btree/bt_delete.c: Likewise. * db2/btree/bt_open.c: Likewise. * db2/btree/bt_page.c: Likewise. * db2/btree/bt_put.c: Likewise. * db2/btree/bt_rec.c: Likewise. * db2/btree/bt_recno.c: Likewise. * db2/btree/btree_auto.c: Likewise. * db2/btree/bt_rsearch.c: Likewise. * db2/btree/bt_search.c: Likewise. * db2/btree/bt_split.c: Likewise. * db2/btree/bt_stat.c: Likewise. * db2/btree/btree.src: Likewise. * db2/common/db_appinit.c: Likewise. * db2/common/db_err.c: Likewise. * db2/common/db_byteorder.c: Likewise. * db2/common/db_apprec.c: Likewise. * db2/common/db_salloc.c: Likewise. * db2/common/db_log2.c: Likewise. * db2/common/db_region.c: Likewise. * db2/common/db_shash.c: Likewise. * db2/db/db.c: Likewise. * db2/db/db.src: Likewise. * db2/db/db_conv.c: Likewise. * db2/db/db_dispatch.c: Likewise. * db2/db/db_dup.c: Likewise. * db2/db/db_overflow.c: Likewise. * db2/db/db_pr.c: Likewise. * db2/db/db_rec.c: Likewise. * db2/db/db_ret.c: Likewise. * db2/db/db_thread.c: Likewise. * db2/db/db_auto.c: Likewise. * db2/db185/db185.c: Likewise. * db2/db185/db185_int.h: Likewise. * db2/dbm/dbm.c: Likewise. * db2/hash/hash.c: Likewise. * db2/hash/hash.src: Likewise. * db2/hash/hash_page.c: Likewise. * db2/hash/hash_conv.c: Likewise. * db2/hash/hash_debug.c: Likewise. * db2/hash/hash_stat.c: Likewise. * db2/hash/hash_rec.c: Likewise. * db2/hash/hash_dup.c: Likewise. * db2/hash/hash_func.c: Likewise. * db2/hash/hash_auto.c: Likewise. * db2/include/mp.h: Likewise. * db2/include/btree.h: Likewise. * db2/include/db.h.src: Likewise. * db2/include/db_int.h.src: Likewise. * db2/include/db_shash.h: Likewise. * db2/include/db_swap.h: Likewise. * db2/include/db_185.h.src: Likewise. * db2/include/txn.h: Likewise. * db2/include/db_am.h: Likewise. * db2/include/shqueue.h: Likewise. * db2/include/hash.h: Likewise. * db2/include/db_dispatch.h: Likewise. * db2/include/lock.h: Likewise. * db2/include/db_page.h: Likewise. * db2/include/log.h: Likewise. * db2/include/db_auto.h: Likewise. * db2/include/btree_auto.h: Likewise. * db2/include/hash_auto.h: Likewise. * db2/include/log_auto.h: Likewise. * db2/include/txn_auto.h: Likewise. * db2/include/db_ext.h: Likewise. * db2/include/btree_ext.h: Likewise. * db2/include/clib_ext.h: Likewise. * db2/include/common_ext.h: Likewise. * db2/include/hash_ext.h: Likewise. * db2/include/lock_ext.h: Likewise. * db2/include/log_ext.h: Likewise. * db2/include/mp_ext.h: Likewise. * db2/include/mutex_ext.h: Likewise. * db2/include/os_ext.h: Likewise. * db2/include/txn_ext.h: Likewise. * db2/include/cxx_int.h: Likewise. * db2/include/db_cxx.h: Likewise. * db2/include/queue.h: Likewise. * db2/lock/lock.c: Likewise. * db2/lock/lock_conflict.c: Likewise. * db2/lock/lock_util.c: Likewise. * db2/lock/lock_deadlock.c: Likewise. * db2/log/log.c: Likewise. * db2/log/log_get.c: Likewise. * db2/log/log.src: Likewise. * db2/log/log_compare.c: Likewise. * db2/log/log_put.c: Likewise. * db2/log/log_rec.c: Likewise. * db2/log/log_archive.c: Likewise. * db2/log/log_register.c: Likewise. * db2/log/log_auto.c: Likewise. * db2/log/log_findckp.c: Likewise. * db2/mp/mp_bh.c: Likewise. * db2/mp/mp_fget.c: Likewise. * db2/mp/mp_fopen.c: Likewise. * db2/mp/mp_fput.c: Likewise. * db2/mp/mp_fset.c: Likewise. * db2/mp/mp_open.c: Likewise. * db2/mp/mp_region.c: Likewise. * db2/mp/mp_pr.c: Likewise. * db2/mp/mp_sync.c: Likewise. * db2/mutex/68020.gcc: Likewise. * db2/mutex/mutex.c: Likewise. * db2/mutex/README: Likewise. * db2/mutex/x86.gcc: Likewise. * db2/mutex/sparc.gcc: Likewise. * db2/mutex/uts4.cc.s: Likewise. * db2/mutex/alpha.dec: Likewise. * db2/mutex/alpha.gcc: Likewise. * db2/mutex/parisc.gcc: Likewise. * db2/mutex/parisc.hp: Likewise. * db2/os/db_os_abs.c: Likewise. * db2/os/db_os_dir.c: Likewise. * db2/os/db_os_fid.c: Likewise. * db2/os/db_os_lseek.c: Likewise. * db2/os/db_os_mmap.c: Likewise. * db2/os/db_os_open.c: Likewise. * db2/os/db_os_rw.c: Likewise. * db2/os/db_os_sleep.c: Likewise. * db2/os/db_os_stat.c: Likewise. * db2/os/db_os_unlink.c: Likewise. * db2/txn/txn.c: Likewise. * db2/txn/txn.src: Likewise. * db2/txn/txn_rec.c: Likewise. * db2/txn/txn_auto.c: Likewise. * db2/clib/getlong.c: Likewise. * db2/progs/db_archive/db_archive.c: Likewise. * db2/progs/db_checkpoint/db_checkpoint.c: Likewise. * db2/progs/db_deadlock/db_deadlock.c: Likewise. * db2/progs/db_dump/db_dump.c: Likewise. * db2/progs/db_dump185/db_dump185.c: Likewise. * db2/progs/db_load/db_load.c: Likewise. * db2/progs/db_printlog/db_printlog.c: Likewise. * db2/progs/db_recover/db_recover.c: Likewise. * db2/progs/db_stat/db_stat.c: Likewise. * libio/stdio.h [__cplusplus] (__STDIO_INLINE): Define as inline. * po/de.po, po/sv.po: Update from 2.0.5 translations. * sysdeps/unix/sysv/linux/netinet/tcp.h: Pretty print. * sunrpc/rpc/xdr.h (XDR): Don't define argument of x_destroy callback as const. * sunrpc/xdr_mem.c (xdrmem_destroy): Don't define argument as const. * sunrpx/xdr_rec.c (xdrrec_destroy): Likewise. * sunrpx/xdr_stdio.c (xdrstdio_destroy): Likewise. 1997-08-27 18:47 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/if_index.c: Include <errno.h>. Reported by Benjamin Kosnik <bkoz@cygnus.com>. 1997-08-27 02:27 Roland McGrath <roland@baalperazim.frob.com> * abi-tags: New file. * csu/Makefile (distribute): Remove abi-tag.h. ($(objpfx)abi-tag.h): New target. * Makefile (distribute): Add abi-tags. * sysdeps/unix/sysv/linux/abi-tag.h: File removed. * sysdeps/mach/hurd/abi-tag.h: File removed. * sysdeps/stub/abi-tag.h: File removed. 1997-08-25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/make-syscalls.sh: Change output so that it generates compilation rules only for the currently selected object suffixes. 1997-08-25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/dl-machine.h (RTLD_START): Switch back to previous section to avoid confusing the compiler. * sysdeps/alpha/dl-machine.h (RTLD_START): Likewise. * sysdeps/i386/dl-machine.h (RTLD_START): Likewise. * sysdeps/mips/dl-machine.h (RTLD_START): Likewise. * sysdeps/mips/mips64/dl-machine.h (RTLD_START): Likewise. * sysdeps/sparc/sparc32/dl-machine.h (RTLD_START): Likewise. * sysdeps/m68k/dl-machine.h (elf_machine_load_address): Use a GOT relocation instead of a constant to avoid text relocation. (ELF_MACHINE_BEFORE_RTLD_RELOC): Removed. (RTLD_START): Declare global labels as functions and add size directive. 1997-08-25 17:01 Ulrich Drepper <drepper@cygnus.com> * sysdeps/i386/bits/select.h: Correct assembler versions to work even for descriptors >= 32. * stdlib/alloca.h: Don't define alloca to __alloca since if gcc is used __alloca is not defined to __builtin_alloca and so might not be available. Reported by Uwe Ohse <uwe@ohse.de>. * sysdeps/unix/sysv/linux/sys/sysmacros.h: Define macros in a special way if gcc is not used and so dev_t is an array. Reported by Uwe Ohse <uwe@ohse.de>. 1997-08-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/libc.texinfo: Reorder chapters to match logical order. 1997-08-25 12:22 Ulrich Drepper <drepper@cygnus.com> * sunrpc/rpc/xdr.h: Change name of parameters in prototypes of xdr_reference, xdrmem_create, and xdrstdio_create because of clash with g++ internal symbols. Patch by Sudish Joseph <sj@eng.mindspring.net>. * elf/dl-deps.c: Implement handling of DT_FILTER.
Diffstat (limited to 'sysdeps/i386/bits')
-rw-r--r--sysdeps/i386/bits/select.h36
-rw-r--r--sysdeps/i386/bits/string.h745
2 files changed, 765 insertions, 16 deletions
diff --git a/sysdeps/i386/bits/select.h b/sysdeps/i386/bits/select.h
index e72b6f0..8c9a543 100644
--- a/sysdeps/i386/bits/select.h
+++ b/sysdeps/i386/bits/select.h
@@ -23,41 +23,45 @@
#if defined __GNUC__ && __GNUC__ >= 2
-#define __FD_ZERO(fdsetp) \
+# define __FD_ZERO(fdsetp) \
__asm__ __volatile__ ("cld ; rep ; stosl" \
: "=m" (*(__fd_set *) (fdsetp)) \
: "a" (0), "c" (sizeof (__fd_set) \
/ sizeof (__fd_mask)), \
"D" ((__fd_set *) (fdsetp)) \
:"cx","di")
-#define __FD_SET(fd, fdsetp) \
+# define __FD_SET(fd, fdsetp) \
__asm__ __volatile__ ("btsl %1,%0" \
- : "=m" (*(__fd_set *) (fdsetp)) \
- : "r" ((int) (fd)))
-#define __FD_CLR(fd, fdsetp) \
+ : "=m" (((__fd_set *) (fdsetp))[__FDELT (fd)]) \
+ : "r" (((int) (fd)) % __NFDBITS) \
+ : "cc")
+# define __FD_CLR(fd, fdsetp) \
__asm__ __volatile__ ("btrl %1,%0" \
- : "=m" (*(__fd_set *) (fdsetp)) \
- : "r" ((int) (fd)))
-#define __FD_ISSET(fd, fdsetp) \
+ : "=m" (((__fd_set *) (fdsetp))[__FDELT (fd)]) \
+ : "r" (((int) (fd)) % __NFDBITS) \
+ : "cc")
+# define __FD_ISSET(fd, fdsetp) \
(__extension__ \
- ({unsigned char __result; \
- __asm__ __volatile__ ("btl %1,%2 ; setb %0" \
+ ({unsigned int __result; \
+ __asm__ __volatile__ ("btl %1,%2 ; setcb %b0; andl $1,%0" \
: "=q" (__result) \
- : "r" ((int) (fd)), "m" (*(__fd_set *) (fdsetp))); \
+ : "r" (((int) (fd)) % __NFDBITS), \
+ "m" (((__fd_set *) (fdsetp))[__FDELT (fd)]) \
+ : "cc"); \
__result; }))
#else /* ! GNU CC */
/* We don't use `memset' because this would require a prototype and
the array isn't too big. */
-#define __FD_ZERO(set) \
+# define __FD_ZERO(set) \
do { \
unsigned int __i; \
for (__i = 0; __i < sizeof (__fd_set) / sizeof (__fd_mask); ++__i) \
- ((__fd_mask *) set)[__i] = '\0'; \
+ ((__fd_mask *) set)[__i] = 0; \
} while (0)
-#define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
-#define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
-#define __FD_ISSET(d, set) ((set)->fds_bits[__FDELT(d)] & __FDMASK(d))
+# define __FD_SET(d, set) ((set)->fds_bits[__FDELT (d)] |= __FDMASK (d))
+# define __FD_CLR(d, set) ((set)->fds_bits[__FDELT (d)] &= ~__FDMASK (d))
+# define __FD_ISSET(d, set) ((set)->fds_bits[__FDELT (d)] & __FDMASK (d))
#endif /* GNU CC */
diff --git a/sysdeps/i386/bits/string.h b/sysdeps/i386/bits/string.h
new file mode 100644
index 0000000..254db3e
--- /dev/null
+++ b/sysdeps/i386/bits/string.h
@@ -0,0 +1,745 @@
+/* Optimized, inlined string functions. i386 version.
+ Copyright (C) 1997 Free Software Foundation, Inc.
+ 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. */
+
+#ifndef _STRING_H
+#error "Never use <bits/string.h> directly; include <string.h> instead."
+#endif
+
+/* We only provide optimizations for the GNU CC. */
+#if defined __GNUC__ && __GNUC__ >= 2
+
+#ifdef __cplusplus
+# define __STRING_INLINE inline
+#else
+# define __STRING_INLINE extern __inline
+#endif
+
+
+/* Copy N bytes of SRC to DEST. */
+#define memcpy(dest, src, n) \
+ (__extension__ (__builtin_constant_p (n) \
+ ? __memcpy_c (dest, src, n) \
+ : memcpy (dest, src, n)))
+/* This looks horribly ugly, but the compiler can optimize it totally,
+ as the count is constant. */
+__STRING_INLINE void *
+__memcpy_c (void *__dest, __const void *__src, size_t __n)
+{
+ switch (n)
+ {
+ case 0:
+ return __dest;
+ case 1:
+ *(unsigned char *) __dest = *(const unsigned char *) __src;
+ return __dest;
+ case 2:
+ *(unsigned short int *) __dest = *(const unsigned short int *) __src;
+ return __dest;
+ case 3:
+ *(unsigned short int *) __dest = *(const unsigned short int *) __src;
+ *(2 + (unsigned char *) __dest) = *(2 + (const unsigned char *) __src);
+ return __dest;
+ case 4:
+ *(unsigned long int *) __dest = *(const unsigned long int *) __src;
+ return __dest;
+ case 6: /* for ethernet addresses */
+ *(unsigned long int *) __dest = *(const unsigned long int *) __src;
+ *(2 + (unsigned short int *) __dest) =
+ *(2 + (const unsigned short int *) __src);
+ return __dest;
+ case 8:
+ *(unsigned long int *) __dest = *(const unsigned long int *) __to;
+ *(1 + (unsigned long int *) __dest) =
+ *(1 + (const unsigned long int *) __src);
+ return __dest;
+ case 12:
+ *(unsigned long int *) __dest = *(const unsigned long int *) __src;
+ *(1 + (unsigned long int *) __dest) =
+ *(1 + (const unsigned long int *) __src);
+ *(2 + (unsigned long int *) __dest) =
+ *(2 + (const unsigned long int *) __src);
+ return __dest;
+ case 16:
+ *(unsigned long int *) __dest = *(const unsigned long int *) __src;
+ *(1 + (unsigned long int *) __dest) =
+ *(1 + (const unsigned long int *) __src);
+ *(2 + (unsigned long int *) __dest) =
+ *(2 + (const unsigned long int *) __src);
+ *(3 + (unsigned long int *) __dest) =
+ *(3 + (const unsigned long int *) __src);
+ return __dest;
+ case 20:
+ *(unsigned long int *) __dest = *(const unsigned long int *) __src;
+ *(1 + (unsigned long int *) __dest) =
+ *(1 + (const unsigned long int *) __src);
+ *(2 + (unsigned long int *) __dest) =
+ *(2 + (const unsigned long int *) __src);
+ *(3 + (unsigned long int *) __dest) =
+ *(3 + (const unsigned long int *) __src);
+ *(4 + (unsigned long int *) __dest) =
+ *(4 + (const unsigned long int *) __src);
+ return __dest;
+ }
+#define __COMMON_CODE(x) \
+ __asm__ __volatile__ \
+ ("cld\n\t" \
+ "rep; movsl" \
+ x \
+ : /* no outputs */ \
+ : "c" (n / 4), "D" (__dest), "S" (__src) \
+ : "cx", "di", "si", "memory");
+
+ switch (n % 4)
+ {
+ case 0:
+ __COMMON_CODE ("");
+ return __dest;
+ case 1:
+ __COMMON_CODE ("\n\tmovsb");
+ return __dest;
+ case 2:
+ __COMMON_CODE ("\n\tmovsw");
+ return __dest;
+ case 3:
+ __COMMON_CODE ("\n\tmovsw\n\tmovsb");
+ return __dest;
+ }
+#undef __COMMON_CODE
+}
+
+
+/* Copy N bytes of SRC to DEST, guaranteeing
+ correct behavior for overlapping strings. */
+__STRING_INLINE void *
+memmove (void *__dest, __const void *__src, size_t __n)
+{
+ if (__dest < __src)
+ __asm__ __volatile__
+ ("cld\n\t"
+ "rep\n\t"
+ "movsb"
+ : /* no output */
+ : "c" (__n), "S" (__src),"D" (__dest)
+ : "cx", "si", "di");
+ else
+ __asm__ __volatile__
+ ("std\n\t"
+ "rep\n\t"
+ "movsb\n\t"
+ "cld"
+ : /* no output */
+ : "c" (__n), "S" (__n - 1 + (const char *) __src),
+ "D" (__n - 1 + (char *) __dest)
+ : "cx", "si", "di", "memory");
+ return __dest;
+}
+
+
+/* Set N bytes of S to C. */
+#define memset(s, c, n) \
+ (__extension__ (__builtin_constant_p (c) \
+ ? (__builtin_constant_p (n) \
+ ? __memset_cc (s, 0x01010101UL * (unsigned char) (c), n) \
+ : __memset_cg (s, 0x01010101UL * (unsigned char) (c), n))\
+ : __memset_gg (s, c, n)))
+
+__STRING_INLINE void *
+__memset_cc (void *__s, unsigned long int __pattern, size_t __n)
+{
+ switch (__n)
+ {
+ case 0:
+ return s;
+ case 1:
+ *(unsigned char *) __s = __pattern;
+ return __s;
+ case 2:
+ *(unsigned short int *) __s = __pattern;
+ return s;
+ case 3:
+ *(unsigned short int *) __s = __pattern;
+ *(2 + (unsigned char *) __s) = __pattern;
+ return __s;
+ case 4:
+ *(unsigned long *) __s = __pattern;
+ return __s;
+ }
+#define __COMMON_CODE(x) \
+ __asm__ __volatile__ \
+ ("cld\n\t" \
+ "rep; stosl" \
+ x \
+ : /* no outputs */ \
+ : "a" (__pattern),"c" (__n / 4), "D" (__s) \
+ : "cx", "di", "memory")
+
+ switch (__n % 4)
+ {
+ case 0:
+ __COMMON_CODE ("");
+ return __s;
+ case 1:
+ __COMMON_CODE ("\n\tstosb");
+ return __s;
+ case 2:
+ __COMMON__CODE ("\n\tstosw");
+ return s;
+ case 3:
+ __COMMON_CODE ("\n\tstosw\n\tstosb");
+ return __s;
+ }
+#undef __COMMON_CODE
+}
+
+__STRING_INLINE void *
+__memset_cg (void *__s, unsigned long __c, size_t __n)
+{
+ __asm__ __volatile__
+ ("cld\n\t"
+ "rep; stosl\n\t"
+ "testb $2,%b1\n\t"
+ "je 1f\n\t"
+ "stosw\n"
+ "1:\n\t"
+ "testb $1,%b1\n\t"
+ "je 2f\n\t"
+ "stosb\n"
+ "2:"
+ : /* no output */
+ : "a" (__c), "q" (__n), "c" (__n / 4), "D" (__s)
+ : "cx", "di", "memory");
+ return __s;
+}
+
+__STRING_INLINE void *
+__memset_gg (void *__s, char __c, size_t __n)
+{
+ __asm__ __volatile__
+ ("cld\n\t"
+ "rep\n\t"
+ "stosb"
+ : /* no output */
+ : "a" (__c),"D" (__s), "c" (__n)
+ : "cx", "di", "memory");
+ return __s;
+}
+
+
+
+
+/* Search N bytes of S for C. */
+__STRING_INLINE void *
+memchr (__const void *__s, int __c, size_t __n)
+{
+ register void *__res;
+ if (count == 0)
+ return NULL;
+ __asm__ __volatile__
+ ("cld\n\t"
+ "repne; scasb\n\t"
+ "je 1f\n\t"
+ "movl $1,%0\n"
+ "1:\n\t"
+ "decl %0"
+ : "=D" (__res)
+ : "a" (__c), "D" (__s), "c" (__n)
+ : "cx", "cc");
+ return __res;
+}
+
+
+/* Search N bytes of S for C. */
+__STRING_INLINE void *
+memchr (__const void *__s, int __c, size_t __n)
+{
+ register void *__res;
+ if (count == 0)
+ return NULL;
+ __asm__ __volatile__
+ ("cld\n\t"
+ "repne\n\t"
+ "scasb\n\t"
+ "je 1f\n\t"
+ "movl $1,%0\n"
+ "1:"
+ : "=D" (__res)
+ : "a" (__c), "0" (__s), "c" (__n)
+ : "cx");
+ return __res - 1;
+}
+
+
+/* Return the length of S. */
+__STRING_INLINE size_t
+strlen (__const char *__str)
+{
+ register size_t __res;
+ __asm__ __volatile__
+ ("cld\n\t"
+ "repne; scasb\n\t"
+ "notl %0"
+ : "=c" (__res)
+ : "D" (__str), "a" (0), "0" (0xffffffff)
+ : "di", "cc");
+ return __res - 1;
+}
+
+
+/* Copy SRC to DEST. */
+__STRING_INLINE char *
+strcpy (char *__dest, __const char *__src)
+{
+ __asm__ __volatile__
+ ("cld\n"
+ "1:\n\t"
+ "lodsb\n\t"
+ "stosb\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b"
+ : /* no output */
+ : "S" (__src), "D" (__dest)
+ : "si", "di", "ax", "memory", "cc");
+ return __dest;
+}
+
+
+/* Copy no more than N characters of SRC to DEST. */
+__STRING_INLINE char *
+strncpy (char *__dest, __const char *__src, size_t __n)
+{
+ __asm__ __volatile__
+ ("cld\n"
+ "1:\n\t"
+ "decl %2\n\t"
+ "js 2f\n\t"
+ "lodsb\n\t"
+ "stosb\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b\n\t"
+ "rep; stosb\n"
+ "2:"
+ : /* no output */
+ : "S" (__src), "D" (__dest), "c" (__n)
+ : "si", "di", "ax", "cx", "memory", "cc");
+ return __dest;
+}
+
+
+/* Append SRC onto DEST. */
+__STRING_INLINE char *
+strcat (char *__dest, __const char *__src)
+{
+ __asm__ __volatile__
+ ("cld\n\t"
+ "repne; scasb\n\t"
+ "decl %1\n"
+ "1:\n\t"
+ "lodsb\n\t"
+ "stosb\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b"
+ : /* no output */
+ : "S" (__src), "D" (__dest), "a" (0), "c" (0xffffffff)
+ : "si", "di", "ax", "cx", "memory", "cc");
+ return __dest;
+}
+
+
+/* Append no more than N characters from SRC onto DEST. */
+__STRING_INLINE char *
+strncat (char *__dest, __const char *__src, size_t __n)
+{
+ __asm__ __volatile__
+ ("cld\n\t"
+ "repne; scasb\n\t"
+ "decl %1\n\t"
+ "movl %4,%3\n"
+ "1:\n\t"
+ "decl %3\n\t"
+ "js 2f\n\t"
+ "lodsb\n\t"
+ "stosb\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b\n"
+ "2:\n\t"
+ "xorl %2,%2\n\t"
+ "stosb"
+ : /* no output */
+ : "S" (__src), "D" (__dest), "a" (0), "c" (0xffffffff), "g" (__n)
+ : "si", "di", "ax", "cx", "memory", "cc");
+ return __dest;
+}
+
+
+/* Compare S1 and S2. */
+__STRING_INLINE int
+strcmp (__const char *__s1, __const char *__s2)
+{
+ register int __res;
+ __asm__ __volatile__
+ ("cld\n"
+ "1:\n\t"
+ "lodsb\n\t"
+ "scasb\n\t"
+ "jne 2f\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b\n\t"
+ "xorl %%eax,%%eax\n\t"
+ "jmp 3f\n"
+ "2:\n\t"
+ "sbbl %%eax,%%eax\n\t"
+ "orb $1,%%eax\n"
+ "3:"
+ : "=a" (__res)
+ : "S" (__s1), "D" (__s2)
+ : "si", "di", "cc");
+ return __res;
+}
+
+
+/* Compare N characters of S1 and S2. */
+__STRING_INLINE int
+strncmp (__const char *__s1, __const char *__s2, size_t __n)
+{
+ register int __res;
+ __asm__ __volatile__
+ ("cld\n"
+ "1:\n\t"
+ "decl %3\n\t"
+ "js 2f\n\t"
+ "lodsb\n\t"
+ "scasb\n\t"
+ "jne 3f\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b\n"
+ "2:\n\t"
+ "xorl %%eax,%%eax\n\t"
+ "jmp 4f\n"
+ "3:\n\t"
+ "sbbl %%eax,%%eax\n\t"
+ "orb $1,%%al\n"
+ "4:"
+ : "=a" (__res)
+ : "S" (__s1), "D" (__s2), "c" (__n)
+ : "si", "di", "cx", "cc");
+ return __res;
+}
+
+
+/* Find the first occurrence of C in S. */
+#define strchr(s, c) \
+ (__extension__ (__builtin_constant_p (c) \
+ ? __strchr_c (s, ((c) & 0xff) << 8) \
+ : __strchr_g (s, c)))
+
+__STRING_INLINE char *
+__strchr_g (__const char *__s, int __c)
+{
+ register char *__res;
+ __asm__ __volatile__
+ ("cld\n\t"
+ "movb %%al,%%ah\n"
+ "1:\n\t"
+ "lodsb\n\t"
+ "cmpb %%ah,%%al\n\t"
+ "je 2f\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b\n\t"
+ "movl $1,%1\n"
+ "2:\n\t"
+ "movl %1,%0"
+ : "=a" (__res)
+ : "S" (__s), "0" (__c)
+ : "si", "cc");
+ return __res - 1;
+}
+
+__STRING_INLINE char *
+__strchr_c (__const char *__s, int __c)
+{
+ register char *__res;
+ __asm__ __volatile__
+ ("cld\n\t"
+ "1:\n\t"
+ "lodsb\n\t"
+ "cmpb %%ah,%%al\n\t"
+ "je 2f\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b\n\t"
+ "movl $1,%1\n"
+ "2:\n\t"
+ "movl %1,%0"
+ : "=a" (__res)
+ : "S" (__s), "0" (__c)
+ : "si", "cc");
+ return __res - 1;
+}
+
+
+/* Return the length of the initial segment of S which
+ consists entirely of characters not in REJECT. */
+#ifdef __PIC__
+__STRING_INLINE size_t
+strcspn (__const char *__s, __const char *__reject)
+{
+ register char *__res;
+ __asm__ __volatile__
+ ("pushl %%ebx\n\t"
+ "cld\n\t"
+ "movl %4,%%edi\n\t"
+ "repne; scasb\n\t"
+ "notl %%ecx\n\t"
+ "decl %%ecx\n\t"
+ "movl %%ecx,%%ebx\n"
+ "1:\n\t"
+ "lodsb\n\t"
+ "testb %%al,%%al\n\t"
+ "je 2f\n\t"
+ "movl %4,%%edi\n\t"
+ "movl %%ebx,%%ecx\n\t"
+ "repne; scasb\n\t"
+ "jne 1b\n"
+ "2:\n\t"
+ "popl %%ebx"
+ : "=S" (__res)
+ : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__reject)
+ : "ax", "cx", "di", "cc");
+ return (__res - 1) - __s;
+}
+#else
+__STRING_INLINE size_t
+strcspn (__const char *__s, __const char *__reject)
+{
+ register char *__res;
+ __asm__ __volatile__
+ ("cld\n\t"
+ "movl %4,%%edi\n\t"
+ "repne; scasb\n\t"
+ "notl %%ecx\n\t"
+ "decl %%ecx\n\t"
+ "movl %%ecx,%%edx\n"
+ "1:\n\t"
+ "lodsb\n\t"
+ "testb %%al,%%al\n\t"
+ "je 2f\n\t"
+ "movl %4,%%edi\n\t"
+ "movl %%edx,%%ecx\n\t"
+ "repne; scasb\n\t"
+ "jne 1b\n"
+ "2:"
+ : "=S" (__res)
+ : "a" (0), "c" (0xffffffff),"0" (__s), "g" (__reject)
+ : "ax", "cx", "dx", "di", "cc");
+ return (__res - 1) - __s;
+}
+#endif
+
+
+/* Return the length of the initial segment of S which
+ consists entirely of characters in ACCEPT. */
+#ifdef __PIC__
+__STRING_INLINE size_t
+strspn (__const char *__s, __const char *__accept)
+{
+ register char *__res;
+ __asm__ __volatile__
+ ("pushl %%ebx\n\t"
+ "cld\n\t"
+ "movl %4,%%edi\n\t"
+ "repne; scasb\n\t"
+ "notl %%ecx\n\t"
+ "decl %%ecx\n\t"
+ "movl %%ecx,%%ebx\n"
+ "1:\n\t"
+ "lodsb\n\t"
+ "testb %%al,%%al\n\t"
+ "je 2f\n\t"
+ "movl %4,%%edi\n\t"
+ "movl %%ebx,%%ecx\n\t"
+ "repne; scasb\n\t"
+ "je 1b\n"
+ "2:\n\t"
+ "popl %%ebx"
+ : "=S" (__res)
+ : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept)
+ : "ax", "cx", "di", "cc");
+ return (__res - 1) - __s;
+}
+#else
+__STRING_INLINE size_t
+strspn (__const char *__s, __const char *__accept)
+{
+ register char *__res;
+ __asm__ __volatile__
+ ("cld\n\t"
+ "movl %4,%%edi\n\t"
+ "repne; scasb\n\t"
+ "notl %%ecx\n\t"
+ "decl %%ecx\n\t"
+ "movl %%ecx,%%edx\n"
+ "1:\n\t"
+ "lodsb\n\t"
+ "testb %%al,%%al\n\t"
+ "je 2f\n\t"
+ "movl %4,%%edi\n\t"
+ "movl %%edx,%%ecx\n\t"
+ "repne; scasb\n\t"
+ "je 1b\n"
+ "2:"
+ : "=S" (__res)
+ : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept)
+ : "ax", "cx", "dx", "di", "cc");
+ return (__res - 1) - __s;
+}
+#endif
+
+
+/* Find the first occurrence in S of any character in ACCEPT. */
+#ifdef __PIC__
+__STRING_INLINE char *
+strpbrk (__const char *__s, __const char *__accept)
+{
+ register char *__res;
+ __asm__ __volatile__
+ ("pushl %%ebx\n\t"
+ "cld\n\t"
+ "movl %4,%%edi\n\t"
+ "repne; scasb\n\t"
+ "notl %%ecx\n\t"
+ "decl %%ecx\n\t"
+ "movl %%ecx,%%ebx\n"
+ "1:\n\t"
+ "lodsb\n\t"
+ "testb %%al,%%al\n\t"
+ "je 2f\n\t"
+ "movl %4,%%edi\n\t"
+ "movl %%ebx,%%ecx\n\t"
+ "repne; scasb\n\t"
+ "jne 1b\n\t"
+ "decl %0\n\t"
+ "jmp 3f\n"
+ "2:\n\t"
+ "xorl %0,%0\n"
+ "3:\n\t"
+ "popl %%ebx"
+ : "=S" (__res)
+ : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept)
+ : "ax", "cx", "di", "cc");
+ return __res;
+}
+#else
+__STRING_INLINE char *
+strpbrk (__const char *__s, __const char *__accept)
+{
+ register char *__res;
+ __asm__ __volatile__
+ ("cld\n\t"
+ "movl %4,%%edi\n\t"
+ "repne; scasb\n\t"
+ "notl %%ecx\n\t"
+ "decl %%ecx\n\t"
+ "movl %%ecx,%%edx\n"
+ "1:\n\t"
+ "lodsb\n\t"
+ "testb %%al,%%al\n\t"
+ "je 2f\n\t"
+ "movl %4,%%edi\n\t"
+ "movl %%edx,%%ecx\n\t"
+ "repne; scasb\n\t"
+ "jne 1b\n\t"
+ "decl %0\n\t"
+ "jmp 3f\n"
+ "2:\n\t"
+ "xorl %0,%0\n"
+ "3:"
+ : "=S" (__res)
+ : "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept)
+ : "ax", "cx", "dx", "di", "cc");
+ return __res;
+}
+#endif
+
+
+/* Find the first occurrence of NEEDLE in HAYSTACK. */
+#ifdef __PIC__
+__STRING_INLINE char *
+strstr (__const char *__haystack, __const char *__needle)
+{
+ register char *__res;
+ __asm__ __volatile__
+ ("pushl %%ebx\n\t"
+ "cld\n\t" \
+ "movl %4,%%edi\n\t"
+ "repne; scasb\n\t"
+ "notl %%ecx\n\t"
+ "decl %%ecx\n\t" /* NOTE! This also sets Z if searchstring='' */
+ "movl %%ecx,%%ebx\n"
+ "1:\n\t"
+ "movl %4,%%edi\n\t"
+ "movl %%esi,%%eax\n\t"
+ "movl %%ebx,%%ecx\n\t"
+ "repe; cmpsb\n\t"
+ "je 2f\n\t" /* also works for empty string, see above */
+ "xchgl %%eax,%%esi\n\t"
+ "incl %%esi\n\t"
+ "cmpb $0,-1(%%eax)\n\t"
+ "jne 1b\n\t"
+ "xorl %%eax,%%eax\n\t"
+ "2:\n\t"
+ "popl %%ebx"
+ : "=a" (__res)
+ : "0" (0), "c" (0xffffffff), "S" (__haystack), "g" (__needle)
+ : "cx", "di", "si", "cc");
+ return __res;
+}
+#else
+__STRING_INLINE char *
+strstr (__const char *__haystack, __const char *__needle)
+{
+ register char *__res;
+ __asm__ __volatile__
+ ("cld\n\t" \
+ "movl %4,%%edi\n\t"
+ "repne; scasb\n\t"
+ "notl %%ecx\n\t"
+ "decl %%ecx\n\t" /* NOTE! This also sets Z if searchstring='' */
+ "movl %%ecx,%%edx\n"
+ "1:\n\t"
+ "movl %4,%%edi\n\t"
+ "movl %%esi,%%eax\n\t"
+ "movl %%edx,%%ecx\n\t"
+ "repe; cmpsb\n\t"
+ "je 2f\n\t" /* also works for empty string, see above */
+ "xchgl %%eax,%%esi\n\t"
+ "incl %%esi\n\t"
+ "cmpb $0,-1(%%eax)\n\t"
+ "jne 1b\n\t"
+ "xorl %%eax,%%eax\n\t"
+ "2:"
+ : "=a" (__res)
+ : "0" (0), "c" (0xffffffff), "S" (__haystack), "g" (__needle)
+ : "cx", "dx", "di", "si", "cc");
+ return __res;
+}
+#endif
+
+
+#undef __STRING_INLINE
+
+#endif /* GNU CC */