Update.
2002-07-24 Philip Blundell <philb@gnu.org> * sysdeps/unix/sysv/linux/arm/ioperm.c (init_iosys): Yield ENODEV on unknown systems. 2003-02-20 Franz Sirl <Franz.Sirl-kernel@lauterbach.com> * sysdeps/powerpc/powerpc32/atomicity.h: Remove compiler workaround. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_NEW_PRCTL_SYSCALL): Defined for ppc32 too. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fe_nomask.c: Use prctl if possible. * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: Avoid short interprocedure branches. * sysdeps/powerpc/soft-fp/Dist (sim-full.c, fenv_const.c): Move to... * sysdeps/powerpc/nofpu/Dist: ...here. * sysdeps/unix/sysv/linux/powerpc/Dist (fe_nomask.c): Move to... * sysdeps/unix/sysv/linux/powerpc/powerpc32/Dist: ...here. * sysdeps/unix/sysv/linux/s390/s390-64/Dist (kernel_stat.h): Delete. * sysdeps/unix/sysv/linux/sparc/Dist (bits/utmpx.h): Delete. * sysdeps/unix/sysv/linux/x86_64/Dist (bits/utmpx.h): Delete.
This commit is contained in:
Ulrich Drepper
parent
a592f998bb
commit
0585697658
22
ChangeLog
22
ChangeLog
@ -1,3 +1,25 @@
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2002-07-24 Philip Blundell <philb@gnu.org>
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* sysdeps/unix/sysv/linux/arm/ioperm.c (init_iosys): Yield ENODEV
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on unknown systems.
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2003-02-20 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
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* sysdeps/powerpc/powerpc32/atomicity.h: Remove compiler workaround.
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* sysdeps/unix/sysv/linux/kernel-features.h
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(__ASSUME_NEW_PRCTL_SYSCALL): Defined for ppc32 too.
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* sysdeps/unix/sysv/linux/powerpc/powerpc32/fe_nomask.c: Use prctl
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if possible.
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* sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: Avoid short
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interprocedure branches.
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* sysdeps/powerpc/soft-fp/Dist (sim-full.c, fenv_const.c): Move to...
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* sysdeps/powerpc/nofpu/Dist: ...here.
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* sysdeps/unix/sysv/linux/powerpc/Dist (fe_nomask.c): Move to...
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* sysdeps/unix/sysv/linux/powerpc/powerpc32/Dist: ...here.
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* sysdeps/unix/sysv/linux/s390/s390-64/Dist (kernel_stat.h): Delete.
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* sysdeps/unix/sysv/linux/sparc/Dist (bits/utmpx.h): Delete.
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* sysdeps/unix/sysv/linux/x86_64/Dist (bits/utmpx.h): Delete.
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2003-02-18 Alan Modra <amodra@bigpond.net.au>
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* sysdeps/powerpc/powerpc32/sysdep.h (HIDDEN_JUMPTARGET): Redefine.
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@ -1,3 +1,8 @@
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2003-02-20 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
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* sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: Avoid short
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interprocedure branches.
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2003-02-19 Ulrich Drepper <drepper@redhat.com>
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* specific.c (pthread_key_delete_helper): Don't use GETMEM, we
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@ -36,16 +36,15 @@ ENTRY (__vfork)
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mtlr 9
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lwz 10,__libc_pthread_functions@got(10)
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lwz 10,0(10)
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cmpwi 10,0
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bne- HIDDEN_JUMPTARGET(__fork)
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# else
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.weak pthread_create
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lis 9,pthread_create@ha
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la 9,pthread_create@l(9)
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cmpwi 9,0
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bne- .Lhidden_fork
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lis 10,pthread_create@ha
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la 10,pthread_create@l(10)
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# endif
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cmpwi 10,0
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bne- .Lhidden_fork
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DO_CALL (SYS_ify (vfork));
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# ifdef __ASSUME_VFORK_SYSCALL
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@ -54,28 +53,24 @@ ENTRY (__vfork)
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bnslr+
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/* Check if vfork syscall is known at all. */
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cmpwi r3,ENOSYS
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# ifdef SHARED
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bne JUMPTARGET(__syscall_error)
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# else
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bne .Lsyscall_error
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# endif
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bne- .Lsyscall_error
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# endif
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.Lhidden_fork:
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b HIDDEN_JUMPTARGET(__fork)
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#endif
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#ifndef __ASSUME_VFORK_SYSCALL
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/* If we don't have vfork, fork is close enough. */
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DO_CALL (SYS_ify (fork));
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PSEUDO_RET
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#endif
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bnslr+
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# ifndef SHARED
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.Lhidden_fork:
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b HIDDEN_JUMPTARGET(__fork)
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.Lsyscall_error:
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b JUMPTARGET(__syscall_error)
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# endif
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#endif
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PSEUDO_END (__vfork)
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libc_hidden_def (__vfork)
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2
sysdeps/powerpc/nofpu/Dist
Normal file
2
sysdeps/powerpc/nofpu/Dist
Normal file
@ -0,0 +1,2 @@
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sim-full.c
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fenv_const.c
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@ -22,13 +22,7 @@
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#include <inttypes.h>
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#if BROKEN_PPC_ASM_CR0
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# define __ATOMICITY_INLINE /* nothing */
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#else
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# define __ATOMICITY_INLINE inline
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#endif
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static __ATOMICITY_INLINE int
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static inline int
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__attribute__ ((unused))
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exchange_and_add (volatile uint32_t *mem, int val)
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{
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@ -42,7 +36,7 @@ exchange_and_add (volatile uint32_t *mem, int val)
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return result;
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}
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static __ATOMICITY_INLINE void
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static inline void
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__attribute__ ((unused))
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atomic_add (volatile uint32_t *mem, int val)
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{
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@ -55,7 +49,7 @@ atomic_add (volatile uint32_t *mem, int val)
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" : "=&b"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory");
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}
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static __ATOMICITY_INLINE int
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static inline int
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__attribute__ ((unused))
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compare_and_swap (volatile long int *p, long int oldval, long int newval)
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{
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@ -72,7 +66,7 @@ compare_and_swap (volatile long int *p, long int oldval, long int newval)
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return result >> 5;
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}
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static __ATOMICITY_INLINE long int
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static inline long int
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__attribute__ ((unused))
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always_swap (volatile long int *p, long int newval)
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{
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@ -85,7 +79,7 @@ always_swap (volatile long int *p, long int newval)
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return result;
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}
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static __ATOMICITY_INLINE int
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static inline int
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__attribute__ ((unused))
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test_and_set (volatile long int *p, long int newval)
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{
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@ -25,6 +25,4 @@ q_sub.c
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q_ulltoq.c
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q_util.c
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q_utoq.c
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sim-full.c
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fenv_const.c
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sfp-machine.h
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@ -1,4 +1,4 @@
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/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
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/* Copyright (C) 1998, 1999, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Phil Blundell, based on the Alpha version by
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David Mosberger.
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@ -166,7 +166,7 @@ init_iosys (void)
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}
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/* systype is not a known platform name... */
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__set_errno (EINVAL);
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__set_errno (ENODEV);
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return -1;
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}
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@ -194,8 +194,8 @@ _ioperm (unsigned long int from, unsigned long int num, int turn_on)
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return -1;
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io.base =
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(unsigned long int) __mmap (0, MAX_PORT << io.shift,
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PROT_READ | PROT_WRITE,
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(unsigned long int) __mmap (0, MAX_PORT << io.shift,
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PROT_READ | PROT_WRITE,
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MAP_SHARED, fd, io.io_base);
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close (fd);
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if ((long) io.base == -1)
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@ -210,9 +210,9 @@
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# define __ASSUME_MMAP2_SYSCALL 1
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#endif
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/* Starting with 2.4.21 PowerPC64 implements the new prctl syscall.
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/* Starting with 2.4.21 PowerPC implements the new prctl syscall.
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This allows applications to get/set the Floating Point Exception Mode. */
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#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc64__
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#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc__
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# define __ASSUME_NEW_PRCTL_SYSCALL 1
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#endif
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@ -1,6 +1,4 @@
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bits/utmpx.h
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dl-brk.S
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fe_nomask.c
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ipc_priv.h
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kernel_termios.h
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ldd-rewrite.sed
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@ -1,2 +1,3 @@
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clone.S
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kernel_stat.h
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fe_nomask.c
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@ -21,7 +21,11 @@
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#include <errno.h>
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#include <signal.h>
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#include <unistd.h>
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#include <sysdep.h>
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#include <sys/prctl.h>
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#include "kernel-features.h"
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#if __ASSUME_NEW_PRCTL_SYSCALL == 0
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/* This is rather fiddly under Linux. We don't have direct access,
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and there is no system call, but we can change the bits
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in a signal handler's context... */
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@ -34,18 +38,31 @@ fe_nomask_handler (int signum, struct sigcontext *sc)
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sc->regs->msr |= 0x900ul; /* FE0 | FE1 */
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sigaction (SIGUSR1, &oact, NULL);
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}
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#endif
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const fenv_t *
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__fe_nomask_env (void)
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{
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struct sigaction act;
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#if __ASSUME_NEW_PRCTL_SYSCALL == 0
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# if defined PR_SET_FPEXC && defined PR_FP_EXC_PRECISE
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int result = INLINE_SYSCALL (prctl, 2, PR_SET_FPEXC, PR_FP_EXC_PRECISE);
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act.sa_handler = (sighandler_t) fe_nomask_handler;
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sigemptyset (&act.sa_mask);
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act.sa_flags = 0;
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if (result == -1 && errno == EINVAL)
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# endif
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{
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struct sigaction act;
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sigaction (SIGUSR1, &act, &oact);
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raise (SIGUSR1);
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act.sa_handler = (sighandler_t) fe_nomask_handler;
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sigemptyset (&act.sa_mask);
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act.sa_flags = 0;
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sigaction (SIGUSR1, &act, &oact);
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raise (SIGUSR1);
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}
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#else
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INTERNAL_SYSCALL_DECL (err);
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INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC, PR_FP_EXC_PRECISE);
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#endif
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return FE_ENABLED_ENV;
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}
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@ -38,7 +38,7 @@ ENTRY (__vfork)
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bnslr+
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/* Check if vfork syscall is known at all. */
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cmpwi r3,ENOSYS
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bne JUMPTARGET(__syscall_error)
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bne- .Lsyscall_error
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# endif
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#endif
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@ -47,7 +47,10 @@ ENTRY (__vfork)
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/* If we don't have vfork, fork is close enough. */
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DO_CALL (SYS_ify (fork))
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PSEUDO_RET
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bnslr+
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.Lsyscall_error:
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b JUMPTARGET(__syscall_error)
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#endif
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PSEUDO_END (__vfork)
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@ -1,3 +1,2 @@
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clone.S
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kernel_stat.h
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ucontext_i.h
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@ -1,4 +1,3 @@
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bits/utmpx.h
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kernel_termios.h
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sys/trap.h
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ldd-rewrite.sed
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@ -1,4 +1,3 @@
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bits/utmpx.h
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clone.S
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ldd-rewrite.sed
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__start_context.S
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