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