19212f875d
1998-03-09 08:21 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/chown.c: Moved to ... * sysdeps/unix/sysv/linux/i386/chown.c: ...here. * sysdeps/unix/sysv/linux/i386/chown.c: Correct versioning information. * libc.map: Add chown to GLIBC_2.1. * sysdeps/unix/sysv/linux/i386/syscalls.list: Add s_chown here. * sysdeps/unix/sysv/linux/syscalls.list: Remove s_chown here. 1998-03-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/generic/ffs.S: Rename function to __ffs and make ffs a weak alias. * sysdeps/alpha/ffs.c: Likewise. * sysdeps/am29k/ffs.c: Likewise. * sysdeps/i386/ffs.c: Likewise. * sysdeps/i960/ffs.c: Likewise. * sysdeps/m68k/ffs.c: Likewise. * sysdeps/m88k/ffs.c: Likewise. * sysdeps/powerpc/ffs.c: Likewise. * sysdeps/rs6000/ffs.c: Likewise. * sysdeps/vax/ffs.s: Likewise. * string/string.h: Declare __ffs. * libc.map: Export it. * elf/dl-profile.c (_dl_start_profile): Use __ffs instead of __builtin_ffs, which is not guaranteed to be namespace clean. 1998-03-06 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/sprof.c: Rewrite symbol handling to use the normal symbol table, which is much more likely to exist than debugging symbols. (printsym): Remove const. (load_shobj): Don't use _dl_pagesize. Fix mapping of section header table. * libc.map: Export __profile_frequency, used by elf/sprof, to avoid infinite recursion during startup. 1998-03-09 12:16 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/* ffs -- find first set bit in a word, counted from least significant end.
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For Amd 290x0.
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Copyright (C) 1991, 1992, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Torbjorn Granlund (tege@sics.se).
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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 <bstring.h>
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#undef ffs
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#ifdef __GNUC__
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int
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__ffs (x)
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int x;
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{
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int cnt;
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asm ("clz %0,%1" : "=r" (cnt) : "r" (x & -x));
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return 32 - cnt;
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}
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weak_alias (__ffs, ffs)
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#else
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#include <sysdeps/generic/ffs.c>
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#endif
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