+1998-07-30 12:38 Ulrich Drepper <drepper@cygnus.com>
+
+ * sysdeps/i386/ffs.c: Add ffsl entry point.
+ * sysdeps/i386/i686/ffs.c: Likewise.
+ * sysdeps/m68k/ffs.c: Likewise.
+ * sysdeps/powerpc/ffs.c: Likewise.
+
+ * sysdeps/i386/i486/bits/string.h: Add optimizations for ffs/ffsl
+ on i686.
+
+1998-07-30 Richard Henderson <rth@cygnus.com>
+
+ * elf/Makefile (ld-map): Move initialization below Makeconfig include.
+
+ * sysdeps/libm-ieee754/k_standard.c (zero): Make non-const to
+ work around gcc bug.
+
+ * string/string.h (ffsl, ffsll): Prototype.
+ * string/Version (GLIBC_2.1): Add them.
+ * sysdeps/alpha/ffs.S: Schedule for EV5. Add ffsl and ffsll
+ entry points.
+ * sysdeps/alpha/ffsll.S: New file. Empty.
+ * sysdeps/generic/ffs.c: Add ffsl and ffsll entry points.
+ * sysdeps/generic/ffsll.c: New file.
+ * string/Makefile (routines): Add ffsll.
+
+1998-07-30 10:03 Ulrich Drepper <drepper@cygnus.com>
+
+ * sysdeps/unix/sysv/linux/alpha/bits/time.h: Don't define CLK_TCK for
+ strictly ISO C compliant programs.
+ * sysdeps/unix/sysv/linux/mips/bits/time.h: Likewise.
+
+1998-07-22 Andreas Jaeger <aj@arthur.rhein-neckar.de>
+
+ * inet/protocols/rwhod.h: Correct typo in comment.
+
+ * configure.in: Use better regex for gettext.
+
1998-07-29 21:29 Ulrich Drepper <drepper@cygnus.com>
* elf/elf.h: Define more EM_* constants, ELFCLASSNUM, ELFDATANUM,
# Found it, now check the version.
echo $ac_n "checking version of $MSGFMT""... $ac_c" 1>&6
echo "configure:1391: checking version of $MSGFMT" >&5
- ac_prog_version=`$MSGFMT --version 2>&1 | sed -n 's/^.*GNU gettext.*\([0-9][0-9]*\.[0-9]*\).*$/\1/p'`
+ ac_prog_version=`$MSGFMT --version 2>&1 | sed -n 's/^.*GNU gettext.* \([0-9]*\.[0-9.]*\).*$/\1/p'`
case $ac_prog_version in
'') ac_prog_version="v. ?.??, bad"; ac_verc_fail=yes;;
- 0.[1-9][0-9] | [1-9].*)
+ 0.[1-9][0-9].* | [1-9].*)
ac_prog_version="$ac_prog_version, ok"; ac_verc_fail=no;;
*) ac_prog_version="$ac_prog_version, bad"; ac_verc_fail=yes;;
[3.75 | 3.76.[1-9]* | 3.7[789]* | 3.[89]*], critic_missing=t)
AC_CHECK_PROG_VER(MSGFMT, msgfmt gmsgfmt, --version,
- [GNU gettext.*\([0-9][0-9]*\.[0-9]*\)],
- [0.[1-9][0-9] | [1-9].*], MSGFMT=: aux_missing=t)
+ [GNU gettext.* \([0-9]*\.[0-9.]*\)],
+ [0.[1-9][0-9].* | [1-9].*], MSGFMT=: aux_missing=t)
AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
[GNU texinfo \([0-9][0-9.]*\)],
[3.1[1-9] | 3.[2-9][0-9]], MAKEINFO=: aux_missing=t)
# ld.so uses those routines, plus some special stuff for being the program
# interpreter and operating independent of libc.
rtld-routines := rtld $(dl-routines) dl-sysdep dl-environ dl-minimal
-ifeq ($(versioning),yes)
-ld-map = $(common-objpfx)libc.map
-endif
distribute = $(rtld-routines:=.c) dynamic-link.h do-rel.h dl-machine.h \
dl-hash.h soinit.c sofini.c ldd.sh.in ldd.bash.in eval.c \
genrtldtbl.awk atomicity.h dl-procinfo.h ldsodefs.h \
include ../Makeconfig
+ifeq ($(versioning),yes)
+ld-map = $(common-objpfx)libc.map
+endif
+
ifeq (yes,$(build-shared))
extra-objs = $(rtld-routines:=.os) soinit.os sofini.os eval.os interp.os
generated = librtld.os dl-allobjs.os ld.so trusted-dirs.h trusted-dirs.st
#define WHODVERSION 1
#define WHODTYPE_STATUS 1 /* host status */
-/* We used to define _PATH_RWHOD here but it's now in <paths.h>. */
+/* We used to define _PATH_RWHOD
IR here but it's now in <paths.h>. */
#include <paths.h>
#endif /* protocols/rwhod.h */
strncat strncmp strncpy \
strrchr strpbrk strsignal strspn strstr strtok \
strtok_r strxfrm memchr memcmp memmove memset \
- mempcpy bcopy bzero ffs stpcpy stpncpy \
+ mempcpy bcopy bzero ffs ffsll stpcpy stpncpy \
strcasecmp strncase strcasecmp_l strncase_l \
memccpy memcpy wordcopy strsep strcasestr \
swab strfry memfrob memmem \
# functions used in other libraries
__strcasestr;
+ # f*
+ ffsl; ffsll;
+
# m*
mempcpy;
/* Return the position of the first bit set in I, or 0 if none are set.
The least-significant bit is position 1, the most-significant 32. */
-extern int __ffs __P ((int __i));
-extern int ffs __P ((int __i));
+extern int __ffs __P ((int __i)) __attribute__ ((const));
+extern int ffs __P ((int __i)) __attribute__ ((const));
+
+/* The following two functions are non-standard but necessary for non-32 bit
+ platforms. */
+# ifdef __USE_GNU
+extern int ffsl __P ((long int __l)) __attribute__ ((const));
+# ifdef __GNUC__
+extern int ffsll __P ((long long int __ll)) __attribute__ ((const));
+# endif
+# endif
/* Compare S1 and S2, ignoring case. */
extern int __strcasecmp __P ((__const char *__s1, __const char *__s2));
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
Contributed by David Mosberger (davidm@cs.arizona.edu).
This file is part of the GNU C Library.
.set noreorder
.set noat
+
ENTRY(__ffs)
#ifdef PROF
ldgp gp, 0(pv)
lda AT, _mcount
jsr AT, (AT), _mcount
.prologue 1
+ zap $16, 0xF0, $16
+ br $ffsl..ng
#else
.prologue 0
+ zap $16, 0xF0, $16
+ # FALLTHRU
#endif
+END(__ffs)
- ldq_u zero, 0(sp) # on the 21064, this helps dual-issuing
- addl a0, zero, a0 # the last insn and reduces the stall
- negq a0, t0 # due to the srl instruction
- and a0, t0, t0
- clr v0
- beq a0, $done
-
- # now do binary search for first non-zero bit
-
- zapnot t0, 0x03, t2
- addq v0, 16, t3
- cmoveq t2, t3, v0
-
- zapnot t0, 0x05, t2
- addq v0, 8, t3
- cmoveq t2, t3, v0
-
- srl t0, v0, t0
- addq v0, 1, v0
-
- and t0, 0x0f, t2
- addq v0, 4, t3
- cmoveq t2, t3, v0
-
- and t0, 0x33, t2
- addq v0, 2, t3
- cmoveq t2, t3, v0
-
- and t0, 0x55, t2
- addq v0, 1, t3
- cmoveq t2, t3, v0
-
-$done: ret
+ .align 4
+ENTRY(ffsl)
+#ifdef PROF
+ ldgp gp, 0(pv)
+ lda AT, _mcount
+ jsr AT, (AT), _mcount
+ .prologue 1
+$ffsl..ng:
+#else
+ .prologue 0
+#endif
+ not $16, $1 # e0 :
+ ldi $2, -1 # .. e1 :
+ cmpbge $1, $2, $3 # e0 : bit N == 1 for byte N == 0
+ clr $0 # .. e1 :
+ addq $3, 1, $4 # e0 :
+ bic $4, $3, $3 # e1 : bit N == 1 for first byte N != 0
+ and $3, 0xF0, $4 # e0 :
+ and $3, 0xCC, $5 # .. e1 :
+ and $3, 0xAA, $6 # e0 :
+ cmovne $4, 4, $0 # .. e1 :
+ cmovne $5, 2, $5 # e0 :
+ cmovne $6, 1, $6 # .. e1 :
+ addl $0, $5, $0 # e0 :
+ addl $0, $6, $0 # e1 : $0 == N
+ extbl $16, $0, $1 # e0 : $1 == byte N
+ ldi $2, 1 # .. e1 :
+ negq $1, $3 # e0 :
+ and $3, $1, $3 # e1 : bit N == least bit set of byte N
+ and $3, 0xF0, $4 # e0 :
+ and $3, 0xCC, $5 # .. e1 :
+ and $3, 0xAA, $6 # e0 :
+ cmovne $4, 5, $2 # .. e1 :
+ cmovne $5, 2, $5 # e0 :
+ cmovne $6, 1, $6 # .. e1 :
+ s8addl $0, $2, $0 # e0 : mult byte ofs by 8 and sum
+ addl $5, $6, $5 # .. e1 :
+ addl $0, $5, $0 # e0 :
+ nop # .. e1 :
+ cmoveq $16, 0, $0 # e0 : trap input == 0 case.
+ ret # .. e1 : 18
+
+END(ffsl)
- END(__ffs)
weak_alias (__ffs, ffs)
+weak_extern (ffsl)
+weak_alias (ffsl, ffsll)
--- /dev/null
+/* This function is defined in ffs.S. */
-/* Copyright (C) 1991, 1992, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Torbjorn Granlund (tege@sics.se).
Boston, MA 02111-1307, USA. */
#include <limits.h>
+#define ffsl __something_else
#include <string.h>
#undef ffs
return table[x >> a] + a;
}
weak_alias (__ffs, ffs)
+
+#if ULONG_MAX == UINT_MAX
+#undef ffsl
+weak_alias (__ffs, ffsl)
+#endif
--- /dev/null
+/* Copyright (C) 1991, 1992, 1997, 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Torbjorn Granlund (tege@sics.se).
+
+ 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 <limits.h>
+#define ffsl __something_else
+#include <string.h>
+
+#undef ffsll
+
+/* Find the first bit set in I. */
+int
+ffsll (i)
+ long long int i;
+{
+ unsigned long long int x = i & -i;
+
+ if (x <= 0xffffffff)
+ return ffs (i);
+ else
+ return 32 + ffs (i >> 32);
+}
+
+#if ULONG_MAX != UINT_MAX
+#undef ffsl
+weak_alias (ffsll, ffsl)
+#endif
/* ffs -- find first set bit in a word, counted from least significant end.
For Intel 80x86, x>=3.
This file is part of the GNU C Library.
- Copyright (C) 1991, 1992, 1993, 1994, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1991, 92, 93, 94, 97, 98 Free Software Foundation, Inc.
Contributed by Torbjorn Granlund (tege@sics.se).
The GNU C Library is free software; you can redistribute it and/or
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#define ffsl __something_else
#include <string.h>
#undef ffs
return cnt;
}
weak_alias (__ffs, ffs)
+#undef ffsl
+weak_alias (__ffs, ffsl)
#else
#include <sysdeps/generic/ffs.c>
#endif
+/* Bit find functions. We define only the i686 version since for the other
+ processors gcc generates good code. */
+#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+# ifdef __i686__
+# define _HAVE_STRING_ARCH_ffs 1
+# define ffs(word) (__builtin_constant_p (word) \
+ ? __builtin_ffs (word) \
+ : ({ int __cnt, __tmp; \
+ __asm__ __volatile__ \
+ ("bsfl %2,%0\n\t" \
+ "cmovel %1,%0" \
+ : "=&r" (__cnt), "=r" (__tmp) \
+ : "rm" (word), "1" (-1)); \
+ __cnt + 1; }))
+
+# define ffsl(word) ffs(word)
+# endif /* i686 */
+#endif /* BSD || X/Open */
+
#undef __STRING_INLINE
#endif /* use string inlines && GNU CC */
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#define ffsl __something_else
#include <string.h>
#undef ffs
return cnt + 1;
}
weak_alias (__ffs, ffs)
+#undef ffsl
+weak_alias (__ffs, ffsl)
#else
#include <sysdeps/generic/ffs.c>
#undef fflush
#endif /* !defined(_USE_WRITE) */
-#ifdef __STDC__
+/* XXX gcc versions until now don't delay the 0.0/0.0 division until
+ runtime but produce NaN at copile time. This is wrong since the
+ exceptions are not set correctly. */
+#if 0 && defined __STDC__
static const double zero = 0.0; /* used as const */
#else
static double zero = 0.0; /* used as const */
/* ffs -- find first set bit in a word, counted from least significant end.
For mc68020, mc68030, mc68040.
This file is part of the GNU C Library.
- Copyright (C) 1991, 1992, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1991, 1992, 1997, 1998 Free Software Foundation, Inc.
Contributed by Torbjorn Granlund (tege@sics.se).
The GNU C Library is free software; you can redistribute it and/or
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+#define ffsl __something_else
#include <string.h>
#undef ffs
return 32 - cnt;
}
weak_alias (__ffs, ffs)
+#undef ffsl
+weak_alias (__ffs, ffsl)
#else
/* Find first set bit in a word, counted from least significant end.
For PowerPC.
- Copyright (C) 1991, 1992, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1991, 1992, 1997, 1998 Free Software Foundation, Inc.
Contributed by Torbjorn Granlund (tege@sics.se).
The GNU C Library is free software; you can redistribute it and/or
return 32 - cnt;
}
weak_alias (__ffs, ffs)
+weak_alais (__ffs, ffsl)
/* System-dependent timing definitions. Linux/Alpha version.
- Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998 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
XSI-conformant systems. */
# define CLOCKS_PER_SEC 1000000
+# ifndef __STRICT_ANSI__
/* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK
presents the real value for clock ticks per second for the system. */
-# define CLK_TCK 1024
+# define CLK_TCK 1024
+# endif
# endif /* bits/time.h */
#endif /* !__need_timeval */
/* System-dependent timing definitions. Linux/MIPS version.
- Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998 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
XSI-conformant systems. */
# define CLOCKS_PER_SEC 1000000
+# ifndef __STRICT_ANSI__
/* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK
presents the real value for clock ticks per second for the system. */
-# define CLK_TCK 100 /* XXX not correct for all systems. */
+# define CLK_TCK 100 /* XXX not correct for all systems. */
+# endif
# endif /* bits/time.h */
#endif
projects / platform / upstream / glibc.git / commitdiff