mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 03:33:33 +08:00
Update.
2001-03-16 Martin Schwidefsky <schwidefsky@de.ibm.com> * sysdeps/s390/s390-64/bits/huge_val.h: Move to... * sysdeps/s390/bits/huge_val.h: ...here. * sysdeps/s390/s390-32/bit/huge_val.h: Remove. * sysdeps/s390/s390-64/ffs.c: Move to... * sysdeps/s390/ffs.c: ...here. * sysdeps/s390/s390-32/ffs.c: Remove.
This commit is contained in:
Ulrich Drepper
parent
b15ff9d65e
commit
b8a8413c6f
@ -1,3 +1,12 @@
|
||||
2001-03-16 Martin Schwidefsky <schwidefsky@de.ibm.com>
|
||||
|
||||
* sysdeps/s390/s390-64/bits/huge_val.h: Move to...
|
||||
* sysdeps/s390/bits/huge_val.h: ...here.
|
||||
* sysdeps/s390/s390-32/bit/huge_val.h: Remove.
|
||||
* sysdeps/s390/s390-64/ffs.c: Move to...
|
||||
* sysdeps/s390/ffs.c: ...here.
|
||||
* sysdeps/s390/s390-32/ffs.c: Remove.
|
||||
|
||||
2001-03-16 Jakub Jelinek <jakub@redhat.com>
|
||||
|
||||
* elf/ldconfig.c (search_dir): Remove bogus diagnostic, instead
|
||||
|
||||
5
NEWS
5
NEWS
@ -1,4 +1,4 @@
|
||||
GNU C Library NEWS -- history of user-visible changes. 2001-3-11
|
||||
GNU C Library NEWS -- history of user-visible changes. 2001-3-16
|
||||
|
||||
Copyright (C) 1992-1999, 2000, 2001 Free Software Foundation, Inc.
|
||||
See the end for copying conditions.
|
||||
@ -24,6 +24,9 @@ Version 2.2.3
|
||||
* An asynchronous name lookup library was added. The interface is designed
|
||||
after POSIX AIO. The proposal was circulated beforehand to get comments.
|
||||
No negative ones came in. Implemented by Ulrich Drepper.
|
||||
|
||||
* Port to S390/64bit contributed by Martin Schwidefsky
|
||||
<schwidefsky@de.ibm.com>.
|
||||
|
||||
Version 2.2.2
|
||||
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
/* Machine-dependent pthreads configuration and inline functions.
|
||||
S390 version.
|
||||
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
|
||||
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
|
||||
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
@ -66,6 +66,11 @@ register char * stack_pointer __asm__ ("15");
|
||||
#define THREAD_SETMEM(descr, member, value) THREAD_SELF->member = (value)
|
||||
#define THREAD_SETMEM_NC(descr, member, value) THREAD_SELF->member = (value)
|
||||
|
||||
/* We want the OS to assign stack addresses. */
|
||||
#define FLOATING_STACKS 1
|
||||
|
||||
/* Maximum size of the stack if the rlimit is unlimited. */
|
||||
#define ARCH_STACK_MAX_SIZE 8*1024*1024
|
||||
|
||||
/* Compare-and-swap for semaphores. */
|
||||
|
||||
69
sysdeps/s390/bits/huge_val.h
Normal file
69
sysdeps/s390/bits/huge_val.h
Normal file
@ -0,0 +1,69 @@
|
||||
/* `HUGE_VAL' constants for S/390 (where it is infinity).
|
||||
Used by <stdlib.h> and <math.h> functions for overflow.
|
||||
Copyright (C) 2000, 2001 Free Software Foundation, Inc.
|
||||
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
|
||||
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 _MATH_H
|
||||
# error "Never use <bits/huge_val.h> directly; include <math.h> instead."
|
||||
#endif
|
||||
|
||||
#include <features.h>
|
||||
|
||||
/* IEEE positive infinity (-HUGE_VAL is negative infinity). */
|
||||
|
||||
#if __GNUC_PREREQ(2,96)
|
||||
# define HUGE_VAL (__extension__ 0x1.0p2047)
|
||||
#else
|
||||
# define __HUGE_VAL_bytes { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 }
|
||||
|
||||
# define __huge_val_t union { unsigned char __c[8]; double __d; }
|
||||
# ifdef __GNUC__
|
||||
# define HUGE_VAL (__extension__ \
|
||||
((__huge_val_t) { __c: __HUGE_VAL_bytes }).__d)
|
||||
# else /* Not GCC. */
|
||||
static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
|
||||
# define HUGE_VAL (__huge_val.__d)
|
||||
# endif /* GCC. */
|
||||
#endif /* GCC 2.95 */
|
||||
|
||||
|
||||
/* ISO C 99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL. */
|
||||
|
||||
#ifdef __USE_ISOC99
|
||||
|
||||
# if __GNUC_PREREQ(2,96)
|
||||
# define HUGE_VALF (__extension__ 0x1.0p255f)
|
||||
# define HUGE_VALL (__extension__ 0x1.0p255f)
|
||||
# else
|
||||
# define __HUGE_VALF_bytes { 0x7f, 0x80, 0, 0 }
|
||||
# define __huge_valf_t union { unsigned char __c[4]; float __f; }
|
||||
# ifdef __GNUC__
|
||||
# define HUGE_VALF (__extension__ \
|
||||
((__huge_valf_t) { __c: __HUGE_VALF_bytes }).__f)
|
||||
# else /* Not GCC. */
|
||||
static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
|
||||
# define HUGE_VALF (__huge_valf.__f)
|
||||
# endif /* GCC. */
|
||||
|
||||
/* On 390 there is no 'long double' format. Make it the same as 'double' */
|
||||
# define HUGE_VALL HUGE_VAL
|
||||
|
||||
# endif /* GCC 2.95 */
|
||||
|
||||
#endif /* __USE_ISOC99. */
|
||||
68
sysdeps/s390/ffs.c
Normal file
68
sysdeps/s390/ffs.c
Normal file
@ -0,0 +1,68 @@
|
||||
/* ffs -- find first set bit in a word, counted from least significant end.
|
||||
S/390 version.
|
||||
Copyright (C) 2000, 2001 Free Software Foundation, Inc.
|
||||
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
|
||||
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. */
|
||||
|
||||
#define ffsl __something_else
|
||||
#include <string.h>
|
||||
|
||||
#undef ffs
|
||||
|
||||
/* ffs: find first bit set. This is defined the same way as
|
||||
the libc and compiler builtin ffs routines, therefore
|
||||
differs in spirit from the above ffz (man ffs). */
|
||||
|
||||
int
|
||||
__ffs (x)
|
||||
int x;
|
||||
{
|
||||
int r;
|
||||
|
||||
if (x == 0)
|
||||
return 0;
|
||||
__asm__(" lr %%r1,%1\n"
|
||||
" sr %0,%0\n"
|
||||
" tml %%r1,0xFFFF\n"
|
||||
" jnz 0f\n"
|
||||
" ahi %0,16\n"
|
||||
" srl %%r1,16\n"
|
||||
"0: tml %%r1,0x00FF\n"
|
||||
" jnz 1f\n"
|
||||
" ahi %0,8\n"
|
||||
" srl %%r1,8\n"
|
||||
"1: tml %%r1,0x000F\n"
|
||||
" jnz 2f\n"
|
||||
" ahi %0,4\n"
|
||||
" srl %%r1,4\n"
|
||||
"2: tml %%r1,0x0003\n"
|
||||
" jnz 3f\n"
|
||||
" ahi %0,2\n"
|
||||
" srl %%r1,2\n"
|
||||
"3: tml %%r1,0x0001\n"
|
||||
" jnz 4f\n"
|
||||
" ahi %0,1\n"
|
||||
"4:"
|
||||
: "=&d" (r) : "d" (x) : "cc", "1" );
|
||||
return r+1;
|
||||
}
|
||||
|
||||
weak_alias (__ffs, ffs)
|
||||
#undef ffsl
|
||||
weak_alias (__ffs, ffsl)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user