+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.
+
2003-02-18 Alan Modra <amodra@bigpond.net.au>
* sysdeps/powerpc/powerpc32/sysdep.h (HIDDEN_JUMPTARGET): Redefine.
+2003-02-20 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
+
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S: Avoid short
+ interprocedure branches.
+
2003-02-19 Ulrich Drepper <drepper@redhat.com>
* specific.c (pthread_key_delete_helper): Don't use GETMEM, we
mtlr 9
lwz 10,__libc_pthread_functions@got(10)
lwz 10,0(10)
- cmpwi 10,0
- bne- HIDDEN_JUMPTARGET(__fork)
# else
.weak pthread_create
- lis 9,pthread_create@ha
- la 9,pthread_create@l(9)
- cmpwi 9,0
- bne- .Lhidden_fork
+ lis 10,pthread_create@ha
+ la 10,pthread_create@l(10)
# endif
+ cmpwi 10,0
+ bne- .Lhidden_fork
+
DO_CALL (SYS_ify (vfork));
# ifdef __ASSUME_VFORK_SYSCALL
bnslr+
/* Check if vfork syscall is known at all. */
cmpwi r3,ENOSYS
-# ifdef SHARED
- bne JUMPTARGET(__syscall_error)
-# else
- bne .Lsyscall_error
-# endif
+ bne- .Lsyscall_error
# endif
+
+.Lhidden_fork:
+ b HIDDEN_JUMPTARGET(__fork)
+
#endif
#ifndef __ASSUME_VFORK_SYSCALL
/* If we don't have vfork, fork is close enough. */
DO_CALL (SYS_ify (fork));
- PSEUDO_RET
-#endif
+ bnslr+
-# ifndef SHARED
-.Lhidden_fork:
- b HIDDEN_JUMPTARGET(__fork)
.Lsyscall_error:
b JUMPTARGET(__syscall_error)
-# endif
+#endif
PSEUDO_END (__vfork)
libc_hidden_def (__vfork)
--- /dev/null
+sim-full.c
+fenv_const.c
#include <inttypes.h>
-#if BROKEN_PPC_ASM_CR0
-# define __ATOMICITY_INLINE /* nothing */
-#else
-# define __ATOMICITY_INLINE inline
-#endif
-
-static __ATOMICITY_INLINE int
+static inline int
__attribute__ ((unused))
exchange_and_add (volatile uint32_t *mem, int val)
{
return result;
}
-static __ATOMICITY_INLINE void
+static inline void
__attribute__ ((unused))
atomic_add (volatile uint32_t *mem, int val)
{
" : "=&b"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory");
}
-static __ATOMICITY_INLINE int
+static inline int
__attribute__ ((unused))
compare_and_swap (volatile long int *p, long int oldval, long int newval)
{
return result >> 5;
}
-static __ATOMICITY_INLINE long int
+static inline long int
__attribute__ ((unused))
always_swap (volatile long int *p, long int newval)
{
return result;
}
-static __ATOMICITY_INLINE int
+static inline int
__attribute__ ((unused))
test_and_set (volatile long int *p, long int newval)
{
q_ulltoq.c
q_util.c
q_utoq.c
-sim-full.c
-fenv_const.c
sfp-machine.h
-/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+/* Copyright (C) 1998, 1999, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Phil Blundell, based on the Alpha version by
David Mosberger.
}
/* systype is not a known platform name... */
- __set_errno (EINVAL);
+ __set_errno (ENODEV);
return -1;
}
return -1;
io.base =
- (unsigned long int) __mmap (0, MAX_PORT << io.shift,
- PROT_READ | PROT_WRITE,
+ (unsigned long int) __mmap (0, MAX_PORT << io.shift,
+ PROT_READ | PROT_WRITE,
MAP_SHARED, fd, io.io_base);
close (fd);
if ((long) io.base == -1)
# define __ASSUME_MMAP2_SYSCALL 1
#endif
-/* Starting with 2.4.21 PowerPC64 implements the new prctl syscall.
+/* Starting with 2.4.21 PowerPC implements the new prctl syscall.
This allows applications to get/set the Floating Point Exception Mode. */
-#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc64__
+#if __LINUX_KERNEL_VERSION >= (132096+21) && defined __powerpc__
# define __ASSUME_NEW_PRCTL_SYSCALL 1
#endif
-bits/utmpx.h
dl-brk.S
-fe_nomask.c
ipc_priv.h
kernel_termios.h
ldd-rewrite.sed
clone.S
kernel_stat.h
+fe_nomask.c
#include <errno.h>
#include <signal.h>
#include <unistd.h>
+#include <sysdep.h>
+#include <sys/prctl.h>
+#include "kernel-features.h"
+#if __ASSUME_NEW_PRCTL_SYSCALL == 0
/* This is rather fiddly under Linux. We don't have direct access,
and there is no system call, but we can change the bits
in a signal handler's context... */
sc->regs->msr |= 0x900ul; /* FE0 | FE1 */
sigaction (SIGUSR1, &oact, NULL);
}
+#endif
const fenv_t *
__fe_nomask_env (void)
{
- struct sigaction act;
+#if __ASSUME_NEW_PRCTL_SYSCALL == 0
+# if defined PR_SET_FPEXC && defined PR_FP_EXC_PRECISE
+ int result = INLINE_SYSCALL (prctl, 2, PR_SET_FPEXC, PR_FP_EXC_PRECISE);
- act.sa_handler = (sighandler_t) fe_nomask_handler;
- sigemptyset (&act.sa_mask);
- act.sa_flags = 0;
+ if (result == -1 && errno == EINVAL)
+# endif
+ {
+ struct sigaction act;
- sigaction (SIGUSR1, &act, &oact);
- raise (SIGUSR1);
+ act.sa_handler = (sighandler_t) fe_nomask_handler;
+ sigemptyset (&act.sa_mask);
+ act.sa_flags = 0;
+
+ sigaction (SIGUSR1, &act, &oact);
+ raise (SIGUSR1);
+ }
+#else
+ INTERNAL_SYSCALL_DECL (err);
+ INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC, PR_FP_EXC_PRECISE);
+#endif
return FE_ENABLED_ENV;
}
bnslr+
/* Check if vfork syscall is known at all. */
cmpwi r3,ENOSYS
- bne JUMPTARGET(__syscall_error)
+ bne- .Lsyscall_error
# endif
#endif
/* If we don't have vfork, fork is close enough. */
DO_CALL (SYS_ify (fork))
- PSEUDO_RET
+ bnslr+
+
+.Lsyscall_error:
+ b JUMPTARGET(__syscall_error)
#endif
PSEUDO_END (__vfork)
clone.S
-kernel_stat.h
ucontext_i.h
-bits/utmpx.h
kernel_termios.h
sys/trap.h
ldd-rewrite.sed
-bits/utmpx.h
clone.S
ldd-rewrite.sed
__start_context.S
projects / thirdparty / glibc.git / commitdiff
