Update.
2000-10-07 Ulrich Drepper <drepper@redhat.com> * include/features.h (__STDC_ISO_10646__): Set to correct date. Patch by Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>. 2000-10-06 Jes Sorensen <jes@linuxcare.com> * sysdeps/ia64/fpu/fraiseexcpt.c (feraiseexcept): Implement overflow generation by adding DBL_MAX to DBL_MAX instead of setting the bits manually in the fpsr and generating the exception with kill() if necessary. (feraiseexcept): Implement underflow by dividing DBL_MIN by DBL_MIN - similar to the overflow change described above. 2000-08-27 H.J. Lu <hjl@gnu.org> * sysdeps/unix/sysv/linux/ia64/clone.S: Make it a dummy as clone is not supported under Linux/ia64, use clone2. 2000-10-06 Jakub Jelinek <jakub@redhat.com> * malloc/malloc.h (__THROW): Define to nothing if not gcc. * misc/sys/cdefs.h (__THROW): Likewise.
This commit is contained in:
Ulrich Drepper
parent
19e89d15a1
commit
9b767d19e6
24
ChangeLog
24
ChangeLog
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@ -1,3 +1,27 @@
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2000-10-07 Ulrich Drepper <drepper@redhat.com>
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* include/features.h (__STDC_ISO_10646__): Set to correct date.
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Patch by Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>.
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2000-10-06 Jes Sorensen <jes@linuxcare.com>
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* sysdeps/ia64/fpu/fraiseexcpt.c (feraiseexcept): Implement
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overflow generation by adding DBL_MAX to DBL_MAX instead of
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setting the bits manually in the fpsr and generating the exception
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with kill() if necessary.
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(feraiseexcept): Implement underflow by dividing DBL_MIN by
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DBL_MIN - similar to the overflow change described above.
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2000-08-27 H.J. Lu <hjl@gnu.org>
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* sysdeps/unix/sysv/linux/ia64/clone.S: Make it a dummy as clone
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is not supported under Linux/ia64, use clone2.
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2000-10-06 Jakub Jelinek <jakub@redhat.com>
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* malloc/malloc.h (__THROW): Define to nothing if not gcc.
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* misc/sys/cdefs.h (__THROW): Likewise.
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2000-10-05 Jakub Jelinek <jakub@redhat.com>
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* sysdeps/sparc/sparc64/fpu/libm-test-ulps: New file.
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@ -243,8 +243,8 @@
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#define __STDC_IEC_559__ 1
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#define __STDC_IEC_559_COMPLEX__ 1
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/* wchar_t uses Unicode 3.0. */
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#define __STDC_ISO_10646__ 200001L
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/* wchar_t uses ISO 10646-1:2000 / Unicode 3.0 */
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#define __STDC_ISO_10646__ 200010L
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/* This macro indicates that the installed library is the GNU C Library.
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For historic reasons the value now is 6 and this will stay from now
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@ -1,5 +1,5 @@
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/* Prototypes and definition for malloc implementation.
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Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
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Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
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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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@ -76,6 +76,8 @@
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#else /* Not GCC. */
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# define __THROW
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# if (defined __STDC__ && __STDC__) || defined __cplusplus
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# define __MALLOC_P(args) args
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@ -54,6 +54,7 @@
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# define __inline /* No inline functions. */
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# define __THROW
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# define __P(args) args
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# define __PMT(args) args
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@ -51,35 +51,20 @@ feraiseexcept (int excepts)
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if (FE_DIVBYZERO & excepts)
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__asm__ __volatile__ ("frcpa.s0 %0,p1=f1,f0" : "=f" (tmp) : : "p1" );
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/* XXX There seem to be no reliable way to generate
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overflow/underflow exceptions without causing inexact exceptions
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as well. */
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/* Next: overflow. */
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if (FE_OVERFLOW & excepts)
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{
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__asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
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fpsr |= (FE_OVERFLOW << 13);
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__asm__ __volatile__ ("mov.m ar.fpsr=%0" : : "r" (fpsr));
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dummy = DBL_MAX;
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if (!((unsigned long int) fpsr & FE_OVERFLOW))
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{
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pid_t pid = getpid ();
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kill (pid, SIGFPE);
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}
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__asm__ __volatile__ ("fadd.d.s0 %0=%1,%1" : "=f" (dummy) : "0" (dummy));
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}
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/* Next: underflow. */
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if (FE_UNDERFLOW & excepts)
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{
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__asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
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fpsr |= (FE_UNDERFLOW << 13);
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__asm__ __volatile__ ("mov.m ar.fpsr=%0" : : "r" (fpsr));
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dummy = DBL_MIN;
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if (!((unsigned long int) fpsr & FE_UNDERFLOW))
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{
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pid_t pid = getpid();
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kill (pid, SIGFPE);
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}
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__asm__ __volatile__ ("fnma.d.s0 %0=%1,%1,f0" : "=f" (tmp) : "f" (dummy));
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}
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/* Last: inexact. */
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@ -1,76 +1 @@
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/* Copyright (C) 1999,2000 Free Software Foundation, Inc.
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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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/* clone is even more special than fork as it mucks with stacks
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and invokes a function in the right context after its all over. */
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#include <sysdep.h>
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/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
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/*
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* Used for both clone and fork system calls. Note that if fn is NULL
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* then clone was called from fork.
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*/
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ENTRY(__clone)
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add r2 = -16, r33 // save space for fn and arg
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cmp.ne p6,p0 = 0,r33
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;;
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(p6) add r33 = -16, r33
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add r12 = -16, r12
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;;
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(p6) st8 [r2] = r32, 8 // save fn for child
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st8 [r12] = r32 // save fn for parent
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;;
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(p6) st8 [r2] = r35 // save arg for child
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mov r32 = r34 // put flags in out0
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DO_CALL (SYS_ify (clone))
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1:
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ld8 r33 = [r12], 8 // recover fn
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;;
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ld8 r32 = [r12], 8 // recover arg
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cmp.eq p6,p0=-1,r10
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(p6) br.cond.spnt.many __syscall_error // handle error
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cmp.ne p7,p0=0,r8
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(p7) ret // parent process, just return
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cmp.eq p8,p0=0,r33
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(p8) ret // fork call, return
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alloc loc0 = ar.pfs,2,2,2,0
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;;
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ld8 r2 = [in1], 8 // get address of fn
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mov out0 = in0
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mov loc1 = gp // save gp across indirect call
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;;
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ld8 gp = [in1] // set new gp
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mov b6 = r2
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br.call.sptk b0 = b6 // call thread routine
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;;
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mov ar.pfs = loc0
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mov gp = loc1
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mov r32 = r8 // exit value
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;;
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br.call.sptk b0 = _exit // we're out of here
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PSEUDO_END(__clone)
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weak_alias (__clone, clone)
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/* clone is not supported under Linux/ia64, use clone2. */
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