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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 2003-02-20 22:23:34 +00:00
parent a592f998bb
commit 0585697658
15 changed files with 81 additions and 49 deletions
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22
ChangeLog
View File

@ -1,3 +1,25 @@
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.

5
linuxthreads/ChangeLog
View File

@ -1,3 +1,8 @@
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

27
linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S
View File

@ -36,16 +36,15 @@ ENTRY (__vfork)
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
@ -54,25 +53,21 @@ ENTRY (__vfork)
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

2
sysdeps/powerpc/nofpu/Dist Normal file
View File

@ -0,0 +1,2 @@
sim-full.c
fenv_const.c

16
sysdeps/powerpc/powerpc32/atomicity.h
View File

@ -22,13 +22,7 @@
#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)
{
@ -42,7 +36,7 @@ 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)
{
@ -55,7 +49,7 @@ 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)
{
@ -72,7 +66,7 @@ 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)
{
@ -85,7 +79,7 @@ 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)
{

2
sysdeps/powerpc/soft-fp/Dist
View File

@ -25,6 +25,4 @@ q_sub.c
q_ulltoq.c
q_util.c
q_utoq.c
sim-full.c
fenv_const.c
sfp-machine.h

4
sysdeps/unix/sysv/linux/arm/ioperm.c
View File

@ -1,4 +1,4 @@
/* 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.
@ -166,7 +166,7 @@ init_iosys (void)
}
/* systype is not a known platform name... */
__set_errno (EINVAL);
__set_errno (ENODEV);
return -1;
}

4
sysdeps/unix/sysv/linux/kernel-features.h
View File

@ -210,9 +210,9 @@
# 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

2
sysdeps/unix/sysv/linux/powerpc/Dist
View File

@ -1,6 +1,4 @@
bits/utmpx.h
dl-brk.S
fe_nomask.c
ipc_priv.h
kernel_termios.h
ldd-rewrite.sed

1
sysdeps/unix/sysv/linux/powerpc/powerpc32/Dist
View File

@ -1,2 +1,3 @@
clone.S
kernel_stat.h
fe_nomask.c

17
sysdeps/unix/sysv/linux/powerpc/powerpc32/fe_nomask.c
View File

@ -21,7 +21,11 @@
#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... */
@ -34,9 +38,17 @@ fe_nomask_handler (int signum, struct sigcontext *sc)
sc->regs->msr |= 0x900ul; /* FE0 | FE1 */
sigaction (SIGUSR1, &oact, NULL);
}
#endif
const fenv_t *
__fe_nomask_env (void)
{
#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);
if (result == -1 && errno == EINVAL)
# endif
{
struct sigaction act;
@ -46,6 +58,11 @@ __fe_nomask_env (void)
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;
}

7
sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S
View File

@ -38,7 +38,7 @@ ENTRY (__vfork)
bnslr+
/* Check if vfork syscall is known at all. */
cmpwi r3,ENOSYS
bne JUMPTARGET(__syscall_error)
bne- .Lsyscall_error
# endif
#endif
@ -47,7 +47,10 @@ ENTRY (__vfork)
/* 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)

1
sysdeps/unix/sysv/linux/s390/s390-64/Dist
View File

@ -1,3 +1,2 @@
clone.S
kernel_stat.h
ucontext_i.h

1
sysdeps/unix/sysv/linux/sparc/Dist
View File

@ -1,4 +1,3 @@
bits/utmpx.h
kernel_termios.h
sys/trap.h
ldd-rewrite.sed

1
sysdeps/unix/sysv/linux/x86_64/Dist
View File

@ -1,4 +1,3 @@
bits/utmpx.h
clone.S
ldd-rewrite.sed
__start_context.S