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__ASSUME_POSIX_TIMERS is defined unconditionally for all supported
Linux kernel versions and architectures. This patch removes this
define and associated conditional code. (Some of this code can be
further cleaned up when __ASSUME_POSIX_CPU_TIMERS is removed - and
once that is done, it will make sense to clean up any residual
conditionals in Linux-specific files on __NR_clock_* and __NR_timer_*
being defined.)
Tested x86 and x86_64 (there are also changes to an SH-specific file,
but those are straightforward and mechanical). A version diffed with
-w is attached since there is a lot of reindentation in some files in
this patch.
2012-08-15 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_POSIX_TIMERS): Remove.
* sysdeps/unix/sysv/linux/clock_getcpuclockid.c
[!__ASSUME_POSIX_TIMERS]: Remove conditional code.
* sysdeps/unix/sysv/linux/clock_getres.c [__ASSUME_POSIX_TIMERS]:
Make code unconditional.
[!__ASSUME_POSIX_TIMERS]: Remove conditional code.
* sysdeps/unix/sysv/linux/clock_gettime.c [__ASSUME_POSIX_TIMERS]:
Make code unconditional.
[!__ASSUME_POSIX_TIMERS]: Remove conditional code.
* sysdeps/unix/sysv/linux/clock_nanosleep.c
[__ASSUME_POSIX_TIMERS]: Make code unconditional.
[!__ASSUME_POSIX_TIMERS]: Remove conditional code.
* sysdeps/unix/sysv/linux/clock_settime.c [__ASSUME_POSIX_TIMERS]:
Make code unconditional.
[!__ASSUME_POSIX_TIMERS]: Remove conditional code.
[__ASSUME_POSIX_CPU_TIMERS <= 0 && __NR_clock_settime]
(__libc_missing_posix_timers): Remove.
nptl/ChangeLog:
2012-08-15 Joseph Myers <joseph@codesourcery.com>
* pthread_cond_timedwait.c (__pthread_cond_timedwait)
[!__ASSUME_POSIX_TIMERS]: Remove conditional code.
* pthread_condattr_setclock.c (pthread_condattr_setclock)
[!__ASSUME_POSIX_TIMERS]: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
(__pthread_cond_timedwait) [!__ASSUME_POSIX_TIMERS]: Likewise.
* sysdeps/unix/sysv/linux/pthread_getcpuclockid.c
[!__ASSUME_POSIX_TIMERS]: Likewise.
* sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S
(__pthread_cond_timedwait) [!__ASSUME_POSIX_TIMERS]: Likewise.
* sysdeps/unix/sysv/linux/timer_create.c [__NR_timer_create]: Make
code unconditional.
[!__NR-timer_create]: Remove conditional code.
(timer_create) [!__ASSUME_POSIX_TIMERS]: Likewise.
* sysdeps/unix/sysv/linux/timer_delete.c [__NR_timer_delete]: Make
code unconditional.
[!__NR_timer_delete]: Remove conditional code.
(timer_delete) [!__ASSUME_POSIX_TIMERS]: Likewise.
* sysdeps/unix/sysv/linux/timer_getoverr.c
[__NR_timer_getoverrun]: Make code unconditional.
[!__NR_timer_getoverrun]: Remove conditional code.
(timer_getoverrun) [!__ASSUME_POSIX_TIMERS]: Likewise.
* sysdeps/unix/sysv/linux/timer_gettime.c [__NR_timer_gettime]:
Make code unconditional.
[!__NR_timer_gettime]: Remove conditional code.
(timer_gettime) [!__ASSUME_POSIX_TIMERS]: Likewise.
* sysdeps/unix/sysv/linux/timer_routines.c [__NR_timer_create]:
Make code unconditional.
[!__ASSUME_POSIX_TIMERS]: Remove conditional code.
* sysdeps/unix/sysv/linux/timer_settime.c [__NR_timer_settime]:
Make code unconditional.
[!__NR_timer_settime]: Remove conditional code.
(timer_settime) [!__ASSUME_POSIX_TIMERS]: Likewise.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
(__pthread_cond_timedwait) [!__ASSUME_POSIX_TIMERS]: Remove
conditional code.
diff --git a/nptl/pthread_cond_timedwait.c b/nptl/pthread_cond_timedwait.c
index 9605cd7..51a34ba 100644
--- a/nptl/pthread_cond_timedwait.c
+++ b/nptl/pthread_cond_timedwait.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003,2004,2007,2010,2011 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
@@ -113,23 +113,9 @@ __pthread_cond_timedwait (cond, mutex, abstime)
(cond->__data.__nwaiters
& ((1 << COND_NWAITERS_SHIFT) - 1)),
&rt);
-# ifndef __ASSUME_POSIX_TIMERS
- if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (ret, err), 0))
- {
- struct timeval tv;
- (void) gettimeofday (&tv, NULL);
-
- /* Convert the absolute timeout value to a relative timeout. */
- rt.tv_sec = abstime->tv_sec - tv.tv_sec;
- rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000;
- }
- else
-# endif
- {
- /* Convert the absolute timeout value to a relative timeout. */
- rt.tv_sec = abstime->tv_sec - rt.tv_sec;
- rt.tv_nsec = abstime->tv_nsec - rt.tv_nsec;
- }
+ /* Convert the absolute timeout value to a relative timeout. */
+ rt.tv_sec = abstime->tv_sec - rt.tv_sec;
+ rt.tv_nsec = abstime->tv_nsec - rt.tv_nsec;
#else
/* Get the current time. So far we support only one clock. */
struct timeval tv;
diff --git a/nptl/pthread_condattr_setclock.c b/nptl/pthread_condattr_setclock.c
index a3030e2..8b05dc8 100644
--- a/nptl/pthread_condattr_setclock.c
+++ b/nptl/pthread_condattr_setclock.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
@@ -30,32 +30,8 @@ pthread_condattr_setclock (attr, clock_id)
pthread_condattr_t *attr;
clockid_t clock_id;
{
- /* Only a few clocks are allowed. CLOCK_REALTIME is always allowed.
- CLOCK_MONOTONIC only if the kernel has the necessary support. */
- if (clock_id == CLOCK_MONOTONIC)
- {
-#ifndef __ASSUME_POSIX_TIMERS
-# ifdef __NR_clock_getres
- /* Check whether the clock is available. */
- static int avail;
-
- if (avail == 0)
- {
- struct timespec ts;
-
- INTERNAL_SYSCALL_DECL (err);
- int val;
- val = INTERNAL_SYSCALL (clock_getres, err, 2, CLOCK_MONOTONIC, &ts);
- avail = INTERNAL_SYSCALL_ERROR_P (val, err) ? -1 : 1;
- }
-
- if (avail < 0)
-# endif
- /* Not available. */
- return EINVAL;
-#endif
- }
- else if (clock_id != CLOCK_REALTIME)
+ /* Only a few clocks are allowed. */
+ if (clock_id != CLOCK_MONOTONIC && clock_id != CLOCK_REALTIME)
/* If more clocks are allowed some day the storing of the clock ID
in the pthread_cond_t structure needs to be adjusted. */
return EINVAL;
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
index 8170ab3..5f1fd5d 100644
--- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
+++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S
@@ -122,10 +122,6 @@ __pthread_cond_timedwait:
leal 4(%esp), %ecx
movl $__NR_clock_gettime, %eax
ENTER_KERNEL
-# ifndef __ASSUME_POSIX_TIMERS
- cmpl $-ENOSYS, %eax
- je 19f
-# endif
movl %edx, %ebx
/* Compute relative timeout. */
@@ -482,30 +478,6 @@ __pthread_cond_timedwait:
call __lll_unlock_wake
jmp 11b
-#if defined __NR_clock_gettime && !defined __ASSUME_POSIX_TIMERS
- /* clock_gettime not available. */
-19: leal 4(%esp), %ebx
- xorl %ecx, %ecx
- movl $__NR_gettimeofday, %eax
- ENTER_KERNEL
- movl %edx, %ebx
-
- /* Compute relative timeout. */
- movl 8(%esp), %eax
- movl $1000, %edx
- mul %edx /* Milli seconds to nano seconds. */
- movl (%ebp), %ecx
- movl 4(%ebp), %edx
- subl 4(%esp), %ecx
- subl %eax, %edx
- jns 20f
- addl $1000000000, %edx
- subl $1, %ecx
-20: testl %ecx, %ecx
- movl $-ETIMEDOUT, %esi
- js 6b
- jmp 21b
-#endif
.size __pthread_cond_timedwait, .-__pthread_cond_timedwait
versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait,
GLIBC_2_3_2)
diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_getcpuclockid.c b/nptl/sysdeps/unix/sysv/linux/pthread_getcpuclockid.c
index 909f468..7d7287b 100644
--- a/nptl/sysdeps/unix/sysv/linux/pthread_getcpuclockid.c
+++ b/nptl/sysdeps/unix/sysv/linux/pthread_getcpuclockid.c
@@ -1,5 +1,5 @@
/* pthread_getcpuclockid -- Get POSIX clockid_t for a pthread_t. Linux version
- Copyright (C) 2000,2001,2002,2003,2004,2005 Free Software Foundation, Inc.
+ Copyright (C) 2000-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -27,9 +27,6 @@
#if !(__ASSUME_POSIX_CPU_TIMERS > 0)
int __libc_missing_posix_cpu_timers attribute_hidden;
#endif
-#if !(__ASSUME_POSIX_TIMERS > 0)
-int __libc_missing_posix_timers attribute_hidden;
-#endif
int
pthread_getcpuclockid (threadid, clockid)
@@ -51,10 +48,6 @@ pthread_getcpuclockid (threadid, clockid)
const clockid_t tidclock = MAKE_THREAD_CPUCLOCK (pd->tid, CPUCLOCK_SCHED);
# if !(__ASSUME_POSIX_CPU_TIMERS > 0)
-# if !(__ASSUME_POSIX_TIMERS > 0)
- if (__libc_missing_posix_timers && !__libc_missing_posix_cpu_timers)
- __libc_missing_posix_cpu_timers = 1;
-# endif
if (!__libc_missing_posix_cpu_timers)
{
INTERNAL_SYSCALL_DECL (err);
@@ -67,21 +60,12 @@ pthread_getcpuclockid (threadid, clockid)
}
# if !(__ASSUME_POSIX_CPU_TIMERS > 0)
-# if !(__ASSUME_POSIX_TIMERS > 0)
- if (INTERNAL_SYSCALL_ERRNO (r, err) == ENOSYS)
+ if (INTERNAL_SYSCALL_ERRNO (r, err) == EINVAL)
{
- /* The kernel doesn't support these calls at all. */
- __libc_missing_posix_timers = 1;
+ /* The kernel doesn't support these clocks at all. */
__libc_missing_posix_cpu_timers = 1;
}
else
-# endif
- if (INTERNAL_SYSCALL_ERRNO (r, err) == EINVAL)
- {
- /* The kernel doesn't support these clocks at all. */
- __libc_missing_posix_cpu_timers = 1;
- }
- else
return INTERNAL_SYSCALL_ERRNO (r, err);
}
# endif
diff --git a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S
index 0937d6c..a0ccacc 100644
--- a/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S
+++ b/nptl/sysdeps/unix/sysv/linux/sh/pthread_cond_timedwait.S
@@ -158,10 +158,6 @@ __pthread_cond_timedwait:
mov.w .L__NR_clock_gettime, r3
trapa #0x12
SYSCALL_INST_PAD
-# ifndef __ASSUME_POSIX_TIMERS
- cmp/eq #-ENOSYS, r0
- bt 19f
-# endif
/* Compute relative timeout. */
mov.l @r13, r2
@@ -172,24 +168,6 @@ __pthread_cond_timedwait:
.L__NR_clock_gettime:
.word __NR_clock_gettime
-# ifndef __ASSUME_POSIX_TIMERS
-19:
- mov r15, r4
- add #16, r4
- mov #0, r5
- mov #__NR_gettimeofday, r3
- trapa #0x12
- SYSCALL_INST_PAD
-
- /* Compute relative timeout. */
- mov.l @(20,r15), r0
- mov.w .L1k, r1
- dmulu.l r0, r1 /* Micro seconds to nano seconds. */
- mov.l @r13, r2
- mov.l @(4,r13), r3
- mov.l @(16,r15), r0
- sts macl, r1
-#endif
0:
#else
mov r15, r4
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_create.c b/nptl/sysdeps/unix/sysv/linux/timer_create.c
index 8d365eb..c2865fb 100644
--- a/nptl/sysdeps/unix/sysv/linux/timer_create.c
+++ b/nptl/sysdeps/unix/sysv/linux/timer_create.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003,2004, 2007, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
@@ -30,21 +30,9 @@
#include "kernel-posix-cpu-timers.h"
-#ifdef __NR_timer_create
-# ifndef __ASSUME_POSIX_TIMERS
-static int compat_timer_create (clockid_t clock_id, struct sigevent *evp,
- timer_t *timerid);
-# define timer_create static compat_timer_create
-# include <nptl/sysdeps/pthread/timer_create.c>
-# undef timer_create
-
-/* Nonzero if the system calls are not available. */
-int __no_posix_timers attribute_hidden;
-# endif
-
-# ifdef timer_create_alias
-# define timer_create timer_create_alias
-# endif
+#ifdef timer_create_alias
+# define timer_create timer_create_alias
+#endif
int
@@ -53,190 +41,140 @@ timer_create (clock_id, evp, timerid)
struct sigevent *evp;
timer_t *timerid;
{
-# undef timer_create
-# ifndef __ASSUME_POSIX_TIMERS
- if (__no_posix_timers >= 0)
-# endif
- {
- clockid_t syscall_clockid = (clock_id == CLOCK_PROCESS_CPUTIME_ID
- ? MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED)
- : clock_id == CLOCK_THREAD_CPUTIME_ID
- ? MAKE_THREAD_CPUCLOCK (0, CPUCLOCK_SCHED)
- : clock_id);
-
- /* If the user wants notification via a thread we need to handle
- this special. */
- if (evp == NULL
- || __builtin_expect (evp->sigev_notify != SIGEV_THREAD, 1))
- {
- struct sigevent local_evp;
-
- /* We avoid allocating too much memory by basically
- using struct timer as a derived class with the
- first two elements being in the superclass. We only
- need these two elements here. */
- struct timer *newp = (struct timer *) malloc (offsetof (struct timer,
- thrfunc));
- if (newp == NULL)
- /* No more memory. */
+#undef timer_create
+ {
+ clockid_t syscall_clockid = (clock_id == CLOCK_PROCESS_CPUTIME_ID
+ ? MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED)
+ : clock_id == CLOCK_THREAD_CPUTIME_ID
+ ? MAKE_THREAD_CPUCLOCK (0, CPUCLOCK_SCHED)
+ : clock_id);
+
+ /* If the user wants notification via a thread we need to handle
+ this special. */
+ if (evp == NULL
+ || __builtin_expect (evp->sigev_notify != SIGEV_THREAD, 1))
+ {
+ struct sigevent local_evp;
+
+ /* We avoid allocating too much memory by basically
+ using struct timer as a derived class with the
+ first two elements being in the superclass. We only
+ need these two elements here. */
+ struct timer *newp = (struct timer *) malloc (offsetof (struct timer,
+ thrfunc));
+ if (newp == NULL)
+ /* No more memory. */
+ return -1;
+
+ if (evp == NULL)
+ {
+ /* The kernel has to pass up the timer ID which is a
+ userlevel object. Therefore we cannot leave it up to
+ the kernel to determine it. */
+ local_evp.sigev_notify = SIGEV_SIGNAL;
+ local_evp.sigev_signo = SIGALRM;
+ local_evp.sigev_value.sival_ptr = newp;
+
+ evp = &local_evp;
+ }
+
+ kernel_timer_t ktimerid;
+ int retval = INLINE_SYSCALL (timer_create, 3, syscall_clockid, evp,
+ &ktimerid);
+
+ if (retval != -1)
+ {
+ newp->sigev_notify = (evp != NULL
+ ? evp->sigev_notify : SIGEV_SIGNAL);
+ newp->ktimerid = ktimerid;
+
+ *timerid = (timer_t) newp;
+ }
+ else
+ {
+ /* Cannot allocate the timer, fail. */
+ free (newp);
+ retval = -1;
+ }
+
+ return retval;
+ }
+ else
+ {
+ /* Create the helper thread. */
+ pthread_once (&__helper_once, __start_helper_thread);
+ if (__helper_tid == 0)
+ {
+ /* No resources to start the helper thread. */
+ __set_errno (EAGAIN);
return -1;
-
- if (evp == NULL)
- {
- /* The kernel has to pass up the timer ID which is a
- userlevel object. Therefore we cannot leave it up to
- the kernel to determine it. */
- local_evp.sigev_notify = SIGEV_SIGNAL;
- local_evp.sigev_signo = SIGALRM;
- local_evp.sigev_value.sival_ptr = newp;
-
- evp = &local_evp;
- }
-
- kernel_timer_t ktimerid;
- int retval = INLINE_SYSCALL (timer_create, 3, syscall_clockid, evp,
- &ktimerid);
-
-# ifndef __ASSUME_POSIX_TIMERS
- if (retval != -1 || errno != ENOSYS)
-# endif
- {
-# ifndef __ASSUME_POSIX_TIMERS
- __no_posix_timers = 1;
-# endif
-
- if (retval != -1)
- {
- newp->sigev_notify = (evp != NULL
- ? evp->sigev_notify : SIGEV_SIGNAL);
- newp->ktimerid = ktimerid;
-
- *timerid = (timer_t) newp;
- }
- else
- {
- /* Cannot allocate the timer, fail. */
- free (newp);
- retval = -1;
- }
-
- return retval;
- }
-
- free (newp);
-
-# ifndef __ASSUME_POSIX_TIMERS
- /* When we come here the syscall does not exist. Make sure we
- do not try to use it again. */
- __no_posix_timers = -1;
-# endif
- }
- else
- {
-# ifndef __ASSUME_POSIX_TIMERS
- /* Make sure we have the necessary kernel support. */
- if (__no_posix_timers == 0)
- {
- INTERNAL_SYSCALL_DECL (err);
- struct timespec ts;
- int res;
- res = INTERNAL_SYSCALL (clock_getres, err, 2,
- CLOCK_REALTIME, &ts);
- __no_posix_timers = (INTERNAL_SYSCALL_ERROR_P (res, err)
- ? -1 : 1);
- }
-
- if (__no_posix_timers > 0)
-# endif
- {
- /* Create the helper thread. */
- pthread_once (&__helper_once, __start_helper_thread);
- if (__helper_tid == 0)
- {
- /* No resources to start the helper thread. */
- __set_errno (EAGAIN);
- return -1;
- }
-
- struct timer *newp;
- newp = (struct timer *) malloc (sizeof (struct timer));
- if (newp == NULL)
- return -1;
-
- /* Copy the thread parameters the user provided. */
- newp->sival = evp->sigev_value;
- newp->thrfunc = evp->sigev_notify_function;
- newp->sigev_notify = SIGEV_THREAD;
-
- /* We cannot simply copy the thread attributes since the
- implementation might keep internal information for
- each instance. */
- (void) pthread_attr_init (&newp->attr);
- if (evp->sigev_notify_attributes != NULL)
- {
- struct pthread_attr *nattr;
- struct pthread_attr *oattr;
-
- nattr = (struct pthread_attr *) &newp->attr;
- oattr = (struct pthread_attr *) evp->sigev_notify_attributes;
-
- nattr->schedparam = oattr->schedparam;
- nattr->schedpolicy = oattr->schedpolicy;
- nattr->flags = oattr->flags;
- nattr->guardsize = oattr->guardsize;
- nattr->stackaddr = oattr->stackaddr;
- nattr->stacksize = oattr->stacksize;
- }
-
- /* In any case set the detach flag. */
- (void) pthread_attr_setdetachstate (&newp->attr,
- PTHREAD_CREATE_DETACHED);
-
- /* Create the event structure for the kernel timer. */
- struct sigevent sev =
- { .sigev_value.sival_ptr = newp,
- .sigev_signo = SIGTIMER,
- .sigev_notify = SIGEV_SIGNAL | SIGEV_THREAD_ID,
- ._sigev_un = { ._pad = { [0] = __helper_tid } } };
-
- /* Create the timer. */
- INTERNAL_SYSCALL_DECL (err);
- int res;
- res = INTERNAL_SYSCALL (timer_create, err, 3,
- syscall_clockid, &sev, &newp->ktimerid);
- if (! INTERNAL_SYSCALL_ERROR_P (res, err))
- {
- /* Add to the queue of active timers with thread
- delivery. */
- pthread_mutex_lock (&__active_timer_sigev_thread_lock);
- newp->next = __active_timer_sigev_thread;
- __active_timer_sigev_thread = newp;
- pthread_mutex_unlock (&__active_timer_sigev_thread_lock);
-
- *timerid = (timer_t) newp;
- return 0;
- }
-
- /* Free the resources. */
- free (newp);
-
- __set_errno (INTERNAL_SYSCALL_ERRNO (res, err));
-
- return -1;
- }
- }
- }
-
-# ifndef __ASSUME_POSIX_TIMERS
- /* Compatibility code. */
- return compat_timer_create (clock_id, evp, timerid);
-# endif
+ }
+
+ struct timer *newp;
+ newp = (struct timer *) malloc (sizeof (struct timer));
+ if (newp == NULL)
+ return -1;
+
+ /* Copy the thread parameters the user provided. */
+ newp->sival = evp->sigev_value;
+ newp->thrfunc = evp->sigev_notify_function;
+ newp->sigev_notify = SIGEV_THREAD;
+
+ /* We cannot simply copy the thread attributes since the
+ implementation might keep internal information for
+ each instance. */
+ (void) pthread_attr_init (&newp->attr);
+ if (evp->sigev_notify_attributes != NULL)
+ {
+ struct pthread_attr *nattr;
+ struct pthread_attr *oattr;
+
+ nattr = (struct pthread_attr *) &newp->attr;
+ oattr = (struct pthread_attr *) evp->sigev_notify_attributes;
+
+ nattr->schedparam = oattr->schedparam;
+ nattr->schedpolicy = oattr->schedpolicy;
+ nattr->flags = oattr->flags;
+ nattr->guardsize = oattr->guardsize;
+ nattr->stackaddr = oattr->stackaddr;
+ nattr->stacksize = oattr->stacksize;
+ }
+
+ /* In any case set the detach flag. */
+ (void) pthread_attr_setdetachstate (&newp->attr,
+ PTHREAD_CREATE_DETACHED);
+
+ /* Create the event structure for the kernel timer. */
+ struct sigevent sev =
+ { .sigev_value.sival_ptr = newp,
+ .sigev_signo = SIGTIMER,
+ .sigev_notify = SIGEV_SIGNAL | SIGEV_THREAD_ID,
+ ._sigev_un = { ._pad = { [0] = __helper_tid } } };
+
+ /* Create the timer. */
+ INTERNAL_SYSCALL_DECL (err);
+ int res;
+ res = INTERNAL_SYSCALL (timer_create, err, 3,
+ syscall_clockid, &sev, &newp->ktimerid);
+ if (! INTERNAL_SYSCALL_ERROR_P (res, err))
+ {
+ /* Add to the queue of active timers with thread
+ delivery. */
+ pthread_mutex_lock (&__active_timer_sigev_thread_lock);
+ newp->next = __active_timer_sigev_thread;
+ __active_timer_sigev_thread = newp;
+ pthread_mutex_unlock (&__active_timer_sigev_thread_lock);
+
+ *timerid = (timer_t) newp;
+ return 0;
+ }
+
+ /* Free the resources. */
+ free (newp);
+
+ __set_errno (INTERNAL_SYSCALL_ERRNO (res, err));
+
+ return -1;
+ }
+ }
}
-#else
-# ifdef timer_create_alias
-# define timer_create timer_create_alias
-# endif
-/* The new system calls are not available. Use the userlevel
- implementation. */
-# include <nptl/sysdeps/pthread/timer_create.c>
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_delete.c b/nptl/sysdeps/unix/sysv/linux/timer_delete.c
index 98f68e9..598be83 100644
--- a/nptl/sysdeps/unix/sysv/linux/timer_delete.c
+++ b/nptl/sysdeps/unix/sysv/linux/timer_delete.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
@@ -24,91 +24,51 @@
#include "kernel-posix-timers.h"
-#ifdef __NR_timer_delete
-# ifndef __ASSUME_POSIX_TIMERS
-static int compat_timer_delete (timer_t timerid);
-# define timer_delete static compat_timer_delete
-# include <nptl/sysdeps/pthread/timer_delete.c>
-# undef timer_delete
-# endif
-
-# ifdef timer_delete_alias
-# define timer_delete timer_delete_alias
-# endif
+#ifdef timer_delete_alias
+# define timer_delete timer_delete_alias
+#endif
int
timer_delete (timerid)
timer_t timerid;
{
-# undef timer_delete
-# ifndef __ASSUME_POSIX_TIMERS
- if (__no_posix_timers >= 0)
-# endif
- {
- struct timer *kt = (struct timer *) timerid;
+#undef timer_delete
+ struct timer *kt = (struct timer *) timerid;
- /* Delete the kernel timer object. */
- int res = INLINE_SYSCALL (timer_delete, 1, kt->ktimerid);
+ /* Delete the kernel timer object. */
+ int res = INLINE_SYSCALL (timer_delete, 1, kt->ktimerid);
- if (res == 0)
+ if (res == 0)
+ {
+ if (kt->sigev_notify == SIGEV_THREAD)
{
- if (kt->sigev_notify == SIGEV_THREAD)
+ /* Remove the timer from the list. */
+ pthread_mutex_lock (&__active_timer_sigev_thread_lock);
+ if (__active_timer_sigev_thread == kt)
+ __active_timer_sigev_thread = kt->next;
+ else
{
- /* Remove the timer from the list. */
- pthread_mutex_lock (&__active_timer_sigev_thread_lock);
- if (__active_timer_sigev_thread == kt)
- __active_timer_sigev_thread = kt->next;
- else
- {
- struct timer *prevp = __active_timer_sigev_thread;
- while (prevp->next != NULL)
- if (prevp->next == kt)
- {
- prevp->next = kt->next;
- break;
- }
- else
- prevp = prevp->next;
- }
- pthread_mutex_unlock (&__active_timer_sigev_thread_lock);
+ struct timer *prevp = __active_timer_sigev_thread;
+ while (prevp->next != NULL)
+ if (prevp->next == kt)
+ {
+ prevp->next = kt->next;
+ break;
+ }
+ else
+ prevp = prevp->next;
}
-
-# ifndef __ASSUME_POSIX_TIMERS
- /* We know the syscall support is available. */
- __no_posix_timers = 1;
-# endif
-
- /* Free the memory. */
- (void) free (kt);
-
- return 0;
+ pthread_mutex_unlock (&__active_timer_sigev_thread_lock);
}
- /* The kernel timer is not known or something else bad happened.
- Return the error. */
-# ifndef __ASSUME_POSIX_TIMERS
- if (errno != ENOSYS)
- {
- __no_posix_timers = 1;
-# endif
- return -1;
-# ifndef __ASSUME_POSIX_TIMERS
- }
+ /* Free the memory. */
+ (void) free (kt);
- __no_posix_timers = -1;
-# endif
+ return 0;
}
-# ifndef __ASSUME_POSIX_TIMERS
- return compat_timer_delete (timerid);
-# endif
+ /* The kernel timer is not known or something else bad happened.
+ Return the error. */
+ return -1;
}
-#else
-# ifdef timer_delete_alias
-# define timer_delete timer_delete_alias
-# endif
-/* The new system calls are not available. Use the userlevel
- implementation. */
-# include <nptl/sysdeps/pthread/timer_delete.c>
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c b/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c
index a873091..6d48d4c 100644
--- a/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c
+++ b/nptl/sysdeps/unix/sysv/linux/timer_getoverr.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
@@ -23,58 +23,20 @@
#include "kernel-posix-timers.h"
-#ifdef __NR_timer_getoverrun
-# ifndef __ASSUME_POSIX_TIMERS
-static int compat_timer_getoverrun (timer_t timerid);
-# define timer_getoverrun static compat_timer_getoverrun
-# include <nptl/sysdeps/pthread/timer_getoverr.c>
-# undef timer_getoverrun
-# endif
-
-# ifdef timer_getoverrun_alias
-# define timer_getoverrun timer_getoverrun_alias
-# endif
+#ifdef timer_getoverrun_alias
+# define timer_getoverrun timer_getoverrun_alias
+#endif
int
timer_getoverrun (timerid)
timer_t timerid;
{
-# undef timer_getoverrun
-# ifndef __ASSUME_POSIX_TIMERS
- if (__no_posix_timers >= 0)
-# endif
- {
- struct timer *kt = (struct timer *) timerid;
-
- /* Get the information from the kernel. */
- int res = INLINE_SYSCALL (timer_getoverrun, 1, kt->ktimerid);
+#undef timer_getoverrun
+ struct timer *kt = (struct timer *) timerid;
-# ifndef __ASSUME_POSIX_TIMERS
- if (res != -1 || errno != ENOSYS)
- {
- /* We know the syscall support is available. */
- __no_posix_timers = 1;
-# endif
- return res;
-# ifndef __ASSUME_POSIX_TIMERS
- }
-# endif
+ /* Get the information from the kernel. */
+ int res = INLINE_SYSCALL (timer_getoverrun, 1, kt->ktimerid);
-# ifndef __ASSUME_POSIX_TIMERS
- __no_posix_timers = -1;
-# endif
- }
-
-# ifndef __ASSUME_POSIX_TIMERS
- return compat_timer_getoverrun (timerid);
-# endif
+ return res;
}
-#else
-# ifdef timer_getoverrun_alias
-# define timer_getoverrun timer_getoverrun_alias
-# endif
-/* The new system calls are not available. Use the userlevel
- implementation. */
-# include <nptl/sysdeps/pthread/timer_getoverr.c>
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_gettime.c b/nptl/sysdeps/unix/sysv/linux/timer_gettime.c
index 1efe2cc..6d9933a 100644
--- a/nptl/sysdeps/unix/sysv/linux/timer_gettime.c
+++ b/nptl/sysdeps/unix/sysv/linux/timer_gettime.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
@@ -24,17 +24,9 @@
#include "kernel-posix-timers.h"
-#ifdef __NR_timer_gettime
-# ifndef __ASSUME_POSIX_TIMERS
-static int compat_timer_gettime (timer_t timerid, struct itimerspec *value);
-# define timer_gettime static compat_timer_gettime
-# include <nptl/sysdeps/pthread/timer_gettime.c>
-# undef timer_gettime
-# endif
-
-# ifdef timer_gettime_alias
-# define timer_gettime timer_gettime_alias
-# endif
+#ifdef timer_gettime_alias
+# define timer_gettime timer_gettime_alias
+#endif
int
@@ -42,41 +34,11 @@ timer_gettime (timerid, value)
timer_t timerid;
struct itimerspec *value;
{
-# undef timer_gettime
-# ifndef __ASSUME_POSIX_TIMERS
- if (__no_posix_timers >= 0)
-# endif
- {
- struct timer *kt = (struct timer *) timerid;
-
- /* Delete the kernel timer object. */
- int res = INLINE_SYSCALL (timer_gettime, 2, kt->ktimerid, value);
+#undef timer_gettime
+ struct timer *kt = (struct timer *) timerid;
-# ifndef __ASSUME_POSIX_TIMERS
- if (res != -1 || errno != ENOSYS)
- {
- /* We know the syscall support is available. */
- __no_posix_timers = 1;
-# endif
- return res;
-# ifndef __ASSUME_POSIX_TIMERS
- }
-# endif
+ /* Delete the kernel timer object. */
+ int res = INLINE_SYSCALL (timer_gettime, 2, kt->ktimerid, value);
-# ifndef __ASSUME_POSIX_TIMERS
- __no_posix_timers = -1;
-# endif
- }
-
-# ifndef __ASSUME_POSIX_TIMERS
- return compat_timer_gettime (timerid, value);
-# endif
+ return res;
}
-#else
-# ifdef timer_gettime_alias
-# define timer_gettime timer_gettime_alias
-# endif
-/* The new system calls are not available. Use the userlevel
- implementation. */
-# include <nptl/sysdeps/pthread/timer_gettime.c>
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_routines.c b/nptl/sysdeps/unix/sysv/linux/timer_routines.c
index aea3c8f..b7e36bb 100644
--- a/nptl/sysdeps/unix/sysv/linux/timer_routines.c
+++ b/nptl/sysdeps/unix/sysv/linux/timer_routines.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003-2007, 2011 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
@@ -39,7 +39,6 @@ struct thread_start_data
};
-#ifdef __NR_timer_create
/* Helper thread to call the user-provided function. */
static void *
timer_sigev_thread (void *arg)
@@ -196,8 +195,3 @@ __start_helper_thread (void)
be created. */
pthread_atfork (NULL, NULL, reset_helper_control);
}
-#endif
-
-#ifndef __ASSUME_POSIX_TIMERS
-# include <nptl/sysdeps/pthread/timer_routines.c>
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_settime.c b/nptl/sysdeps/unix/sysv/linux/timer_settime.c
index 1484696..5b522ec 100644
--- a/nptl/sysdeps/unix/sysv/linux/timer_settime.c
+++ b/nptl/sysdeps/unix/sysv/linux/timer_settime.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
@@ -24,19 +24,9 @@
#include "kernel-posix-timers.h"
-#ifdef __NR_timer_settime
-# ifndef __ASSUME_POSIX_TIMERS
-static int compat_timer_settime (timer_t timerid, int flags,
- const struct itimerspec *value,
- struct itimerspec *ovalue);
-# define timer_settime static compat_timer_settime
-# include <nptl/sysdeps/pthread/timer_settime.c>
-# undef timer_settime
-# endif
-
-# ifdef timer_settime_alias
-# define timer_settime timer_settime_alias
-# endif
+#ifdef timer_settime_alias
+# define timer_settime timer_settime_alias
+#endif
int
@@ -46,42 +36,12 @@ timer_settime (timerid, flags, value, ovalue)
const struct itimerspec *value;
struct itimerspec *ovalue;
{
-# undef timer_settime
-# ifndef __ASSUME_POSIX_TIMERS
- if (__no_posix_timers >= 0)
-# endif
- {
- struct timer *kt = (struct timer *) timerid;
-
- /* Delete the kernel timer object. */
- int res = INLINE_SYSCALL (timer_settime, 4, kt->ktimerid, flags,
- value, ovalue);
+#undef timer_settime
+ struct timer *kt = (struct timer *) timerid;
-# ifndef __ASSUME_POSIX_TIMERS
- if (res != -1 || errno != ENOSYS)
- {
- /* We know the syscall support is available. */
- __no_posix_timers = 1;
-# endif
- return res;
-# ifndef __ASSUME_POSIX_TIMERS
- }
-# endif
+ /* Delete the kernel timer object. */
+ int res = INLINE_SYSCALL (timer_settime, 4, kt->ktimerid, flags,
+ value, ovalue);
-# ifndef __ASSUME_POSIX_TIMERS
- __no_posix_timers = -1;
-# endif
- }
-
-# ifndef __ASSUME_POSIX_TIMERS
- return compat_timer_settime (timerid, flags, value, ovalue);
-# endif
+ return res;
}
-#else
-# ifdef timer_settime_alias
-# define timer_settime timer_settime_alias
-# endif
-/* The new system calls are not available. Use the userlevel
- implementation. */
-# include <nptl/sysdeps/pthread/timer_settime.c>
-#endif
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
index 50e1ffd..a1c8ca8 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
@@ -457,10 +457,6 @@ __pthread_cond_timedwait:
movl $__NR_clock_gettime, %eax
syscall
# endif
-# ifndef __ASSUME_POSIX_TIMERS
- cmpq $-ENOSYS, %rax
- je 19f
-# endif
/* Compute relative timeout. */
movq (%r13), %rcx
@@ -604,32 +600,6 @@ __pthread_cond_timedwait:
subq $cond_lock, %rdi
# endif
jmp 6b
-
-# if defined __NR_clock_gettime && !defined __ASSUME_POSIX_TIMERS
- /* clock_gettime not available. */
-19: leaq 32(%rsp), %rdi
- xorl %esi, %esi
- /* This call works because we directly jump to a system call entry
- which preserves all the registers. */
- call JUMPTARGET(__gettimeofday)
-
- /* Compute relative timeout. */
- movq 40(%rsp), %rax
- movl $1000, %edx
- mul %rdx /* Milli seconds to nano seconds. */
- movq (%r13), %rcx
- movq 8(%r13), %rdx
- subq 32(%rsp), %rcx
- subq %rax, %rdx
- jns 20f
- addq $1000000000, %rdx
- decq %rcx
-20: testq %rcx, %rcx
- movq 8(%rsp), %rdi
- movq $-ETIMEDOUT, %r14
- js 6b
- jmp 21b
-# endif
#endif
.size __pthread_cond_timedwait, .-__pthread_cond_timedwait
versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait,
diff --git a/sysdeps/unix/sysv/linux/clock_getcpuclockid.c b/sysdeps/unix/sysv/linux/clock_getcpuclockid.c
index c6ff466..1cfdf34 100644
--- a/sysdeps/unix/sysv/linux/clock_getcpuclockid.c
+++ b/sysdeps/unix/sysv/linux/clock_getcpuclockid.c
@@ -1,5 +1,5 @@
/* clock_getcpuclockid -- Get a clockid_t for process CPU time. Linux version.
- Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 2004-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -37,11 +37,6 @@ clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
# if !(__ASSUME_POSIX_CPU_TIMERS > 0)
extern int __libc_missing_posix_cpu_timers attribute_hidden;
-# if !(__ASSUME_POSIX_TIMERS > 0)
- extern int __libc_missing_posix_timers attribute_hidden;
- if (__libc_missing_posix_timers && !__libc_missing_posix_cpu_timers)
- __libc_missing_posix_cpu_timers = 1;
-# endif
if (!__libc_missing_posix_cpu_timers)
# endif
{
@@ -53,33 +48,24 @@ clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
return 0;
}
-# if !(__ASSUME_POSIX_TIMERS > 0)
- if (INTERNAL_SYSCALL_ERRNO (r, err) == ENOSYS)
+ if (INTERNAL_SYSCALL_ERRNO (r, err) == EINVAL)
{
- /* The kernel doesn't support these calls at all. */
- __libc_missing_posix_timers = 1;
- __libc_missing_posix_cpu_timers = 1;
- }
- else
-# endif
- if (INTERNAL_SYSCALL_ERRNO (r, err) == EINVAL)
- {
# if !(__ASSUME_POSIX_CPU_TIMERS > 0)
- if (pidclock == MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED)
- || INTERNAL_SYSCALL_ERROR_P (INTERNAL_SYSCALL
- (clock_getres, err, 2,
- MAKE_PROCESS_CPUCLOCK
- (0, CPUCLOCK_SCHED), NULL),
- err))
- /* The kernel doesn't support these clocks at all. */
- __libc_missing_posix_cpu_timers = 1;
- else
+ if (pidclock == MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED)
+ || INTERNAL_SYSCALL_ERROR_P (INTERNAL_SYSCALL
+ (clock_getres, err, 2,
+ MAKE_PROCESS_CPUCLOCK
+ (0, CPUCLOCK_SCHED), NULL),
+ err))
+ /* The kernel doesn't support these clocks at all. */
+ __libc_missing_posix_cpu_timers = 1;
+ else
# endif
- /* The clock_getres system call checked the PID for us. */
- return ESRCH;
- }
- else
- return INTERNAL_SYSCALL_ERRNO (r, err);
+ /* The clock_getres system call checked the PID for us. */
+ return ESRCH;
+ }
+ else
+ return INTERNAL_SYSCALL_ERRNO (r, err);
}
#endif
diff --git a/sysdeps/unix/sysv/linux/clock_getres.c b/sysdeps/unix/sysv/linux/clock_getres.c
index e7e3138..2bada33 100644
--- a/sysdeps/unix/sysv/linux/clock_getres.c
+++ b/sysdeps/unix/sysv/linux/clock_getres.c
@@ -1,5 +1,5 @@
/* clock_getres -- Get the resolution of a POSIX clockid_t. Linux version.
- Copyright (C) 2003,2004,2005,2006,2008,2010 Free Software Foundation, Inc.
+ Copyright (C) 2003-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -35,11 +35,9 @@
retval = INLINE_VSYSCALL (clock_getres, 2, clock_id, res); \
break
-#ifdef __ASSUME_POSIX_TIMERS
-
-/* This means the REALTIME and MONOTONIC clock are definitely
- supported in the kernel. */
-# define SYSDEP_GETRES \
+/* The REALTIME and MONOTONIC clock are definitely supported in the
+ kernel. */
+#define SYSDEP_GETRES \
SYSDEP_GETRES_CPUTIME \
case CLOCK_REALTIME: \
case CLOCK_MONOTONIC: \
@@ -48,57 +46,6 @@
case CLOCK_MONOTONIC_COARSE: \
SYSCALL_GETRES
-# define __libc_missing_posix_timers 0
-#elif defined __NR_clock_getres
-/* Is the syscall known to exist? */
-extern int __libc_missing_posix_timers attribute_hidden;
-
-static inline int
-maybe_syscall_getres (clockid_t clock_id, struct timespec *res)
-{
- int e = EINVAL;
-
- if (!__libc_missing_posix_timers)
- {
- INTERNAL_SYSCALL_DECL (err);
- int r = INTERNAL_VSYSCALL (clock_getres, err, 2, clock_id, res);
- if (!INTERNAL_SYSCALL_ERROR_P (r, err))
- return 0;
-
- e = INTERNAL_SYSCALL_ERRNO (r, err);
- if (e == ENOSYS)
- {
- __libc_missing_posix_timers = 1;
- e = EINVAL;
- }
- }
-
- return e;
-}
-
-/* The REALTIME and MONOTONIC clock might be available. Try the
- syscall first. */
-# define SYSDEP_GETRES \
- SYSDEP_GETRES_CPUTIME \
- case CLOCK_REALTIME: \
- case CLOCK_MONOTONIC: \
- case CLOCK_MONOTONIC_RAW: \
- case CLOCK_REALTIME_COARSE: \
- case CLOCK_MONOTONIC_COARSE: \
- retval = maybe_syscall_getres (clock_id, res); \
- if (retval == 0) \
- break; \
- /* Fallback code. */ \
- if (retval == EINVAL && clock_id == CLOCK_REALTIME) \
- retval = realtime_getres (res); \
- else \
- { \
- __set_errno (retval); \
- retval = -1; \
- } \
- break;
-#endif
-
#ifdef __NR_clock_getres
/* We handled the REALTIME clock here. */
# define HANDLED_REALTIME 1
@@ -126,26 +73,15 @@ maybe_syscall_getres_cpu (clockid_t clock_id, struct timespec *res)
return 0;
e = INTERNAL_SYSCALL_ERRNO (r, err);
-# ifndef __ASSUME_POSIX_TIMERS
- if (e == ENOSYS)
- {
- __libc_missing_posix_timers = 1;
- __libc_missing_posix_cpu_timers = 1;
- e = EINVAL;
- }
- else
-# endif
+ if (e == EINVAL)
{
- if (e == EINVAL)
- {
- /* Check whether the kernel supports CPU clocks at all.
- If not, record it for the future. */
- r = INTERNAL_VSYSCALL (clock_getres, err, 2,
- MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
- NULL);
- if (INTERNAL_SYSCALL_ERROR_P (r, err))
- __libc_missing_posix_cpu_timers = 1;
- }
+ /* Check whether the kernel supports CPU clocks at all.
+ If not, record it for the future. */
+ r = INTERNAL_VSYSCALL (clock_getres, err, 2,
+ MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
+ NULL);
+ if (INTERNAL_SYSCALL_ERROR_P (r, err))
+ __libc_missing_posix_cpu_timers = 1;
}
}
diff --git a/sysdeps/unix/sysv/linux/clock_gettime.c b/sysdeps/unix/sysv/linux/clock_gettime.c
index 446fbb6..e333d8d 100644
--- a/sysdeps/unix/sysv/linux/clock_gettime.c
+++ b/sysdeps/unix/sysv/linux/clock_gettime.c
@@ -1,5 +1,5 @@
/* clock_gettime -- Get current time from a POSIX clockid_t. Linux version.
- Copyright (C) 2003,2004,2005,2006,2007,2010,2011 Free Software Foundation, Inc.
+ Copyright (C) 2003-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -40,68 +40,15 @@
INTERNAL_VSYSCALL (clock_gettime, err, 2, id, tp)
#endif
-#ifdef __ASSUME_POSIX_TIMERS
-
-/* This means the REALTIME and MONOTONIC clock are definitely
- supported in the kernel. */
-# define SYSDEP_GETTIME \
+/* The REALTIME and MONOTONIC clock are definitely supported in the
+ kernel. */
+#define SYSDEP_GETTIME \
SYSDEP_GETTIME_CPUTIME; \
case CLOCK_REALTIME: \
case CLOCK_MONOTONIC: \
retval = SYSCALL_GETTIME (clock_id, tp); \
break
-# define __libc_missing_posix_timers 0
-#elif defined __NR_clock_gettime
-/* Is the syscall known to exist? */
-int __libc_missing_posix_timers attribute_hidden;
-
-static inline int
-maybe_syscall_gettime (clockid_t clock_id, struct timespec *tp)
-{
- int e = EINVAL;
-
- if (!__libc_missing_posix_timers)
- {
- INTERNAL_SYSCALL_DECL (err);
- int r = INTERNAL_GETTIME (clock_id, tp);
- if (!INTERNAL_SYSCALL_ERROR_P (r, err))
- return 0;
-
- e = INTERNAL_SYSCALL_ERRNO (r, err);
- if (e == ENOSYS)
- {
- __libc_missing_posix_timers = 1;
- e = EINVAL;
- }
- }
-
- return e;
-}
-
-/* The REALTIME and MONOTONIC clock might be available. Try the
- syscall first. */
-# define SYSDEP_GETTIME \
- SYSDEP_GETTIME_CPUTIME; \
- case CLOCK_REALTIME: \
- case CLOCK_MONOTONIC: \
- case CLOCK_MONOTONIC_RAW: \
- case CLOCK_REALTIME_COARSE: \
- case CLOCK_MONOTONIC_COARSE: \
- retval = maybe_syscall_gettime (clock_id, tp); \
- if (retval == 0) \
- break; \
- /* Fallback code. */ \
- if (retval == EINVAL && clock_id == CLOCK_REALTIME) \
- retval = realtime_gettime (tp); \
- else \
- { \
- __set_errno (retval); \
- retval = -1; \
- } \
- break
-#endif
-
#ifdef __NR_clock_gettime
/* We handled the REALTIME clock here. */
# define HANDLED_REALTIME 1
@@ -131,34 +78,23 @@ maybe_syscall_gettime_cpu (clockid_t clock_id, struct timespec *tp)
return 0;
e = INTERNAL_SYSCALL_ERRNO (r, err);
-# ifndef __ASSUME_POSIX_TIMERS
- if (e == ENOSYS)
- {
- __libc_missing_posix_timers = 1;
- __libc_missing_posix_cpu_timers = 1;
- e = EINVAL;
- }
- else
-# endif
+ if (e == EINVAL)
{
- if (e == EINVAL)
- {
# ifdef HAVE_CLOCK_GETRES_VSYSCALL
- /* Check whether the kernel supports CPU clocks at all.
- If not, record it for the future. */
- r = INTERNAL_VSYSCALL (clock_getres, err, 2,
- MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
- NULL);
+ /* Check whether the kernel supports CPU clocks at all.
+ If not, record it for the future. */
+ r = INTERNAL_VSYSCALL (clock_getres, err, 2,
+ MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
+ NULL);
# else
- /* Check whether the kernel supports CPU clocks at all.
- If not, record it for the future. */
- r = INTERNAL_SYSCALL (clock_getres, err, 2,
- MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
- NULL);
+ /* Check whether the kernel supports CPU clocks at all.
+ If not, record it for the future. */
+ r = INTERNAL_SYSCALL (clock_getres, err, 2,
+ MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
+ NULL);
# endif
- if (INTERNAL_SYSCALL_ERROR_P (r, err))
- __libc_missing_posix_cpu_timers = 1;
- }
+ if (INTERNAL_SYSCALL_ERROR_P (r, err))
+ __libc_missing_posix_cpu_timers = 1;
}
}
diff --git a/sysdeps/unix/sysv/linux/clock_nanosleep.c b/sysdeps/unix/sysv/linux/clock_nanosleep.c
index e003ba2..1102963 100644
--- a/sysdeps/unix/sysv/linux/clock_nanosleep.c
+++ b/sysdeps/unix/sysv/linux/clock_nanosleep.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2012 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -23,7 +23,6 @@
#include "kernel-posix-cpu-timers.h"
-#ifdef __ASSUME_POSIX_TIMERS
/* We can simply use the syscall. The CPU clocks are not supported
with this function. */
int
@@ -53,43 +52,3 @@ clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
return (INTERNAL_SYSCALL_ERROR_P (r, err)
? INTERNAL_SYSCALL_ERRNO (r, err) : 0);
}
-
-#else
-# ifdef __NR_clock_nanosleep
-/* Is the syscall known to exist? */
-extern int __libc_missing_posix_timers attribute_hidden;
-
-/* The REALTIME and MONOTONIC clock might be available. Try the
- syscall first. */
-# define SYSDEP_NANOSLEEP \
- if (!__libc_missing_posix_timers) \
- { \
- clockid_t syscall_clockid; \
- INTERNAL_SYSCALL_DECL (err); \
- \
- if (clock_id == CLOCK_THREAD_CPUTIME_ID) \
- return EINVAL; \
- if (clock_id == CLOCK_PROCESS_CPUTIME_ID) \
- syscall_clockid = MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED); \
- else \
- syscall_clockid = clock_id; \
- \
- int oldstate = LIBC_CANCEL_ASYNC (); \
- \
- int r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, \
- syscall_clockid, flags, req, rem); \
- \
- LIBC_CANCEL_RESET (oldstate); \
- \
- if (!INTERNAL_SYSCALL_ERROR_P (r, err)) \
- return 0; \
- \
- if (INTERNAL_SYSCALL_ERRNO (r, err) != ENOSYS) \
- return INTERNAL_SYSCALL_ERRNO (r, err); \
- \
- __libc_missing_posix_timers = 1; \
- }
-# endif
-
-# include <sysdeps/unix/clock_nanosleep.c>
-#endif
diff --git a/sysdeps/unix/sysv/linux/clock_settime.c b/sysdeps/unix/sysv/linux/clock_settime.c
index 8cf3209..f75ceca 100644
--- a/sysdeps/unix/sysv/linux/clock_settime.c
+++ b/sysdeps/unix/sysv/linux/clock_settime.c
@@ -32,7 +32,6 @@
#endif
#if __ASSUME_POSIX_CPU_TIMERS <= 0 && defined __NR_clock_settime
-extern int __libc_missing_posix_timers attribute_hidden;
extern int __libc_missing_posix_cpu_timers attribute_hidden;
static int
@@ -48,26 +47,15 @@ maybe_syscall_settime_cpu (clockid_t clock_id, const struct timespec *tp)
return 0;
e = INTERNAL_SYSCALL_ERRNO (r, err);
-# ifndef __ASSUME_POSIX_TIMERS
- if (e == ENOSYS)
+ if (e == EINVAL)
{
- __libc_missing_posix_timers = 1;
- __libc_missing_posix_cpu_timers = 1;
- e = EINVAL;
- }
- else
-# endif
- {
- if (e == EINVAL)
- {
- /* Check whether the kernel supports CPU clocks at all.
- If not, record it for the future. */
- r = INTERNAL_VSYSCALL (clock_getres, err, 2,
- MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
- NULL);
- if (INTERNAL_SYSCALL_ERROR_P (r, err))
- __libc_missing_posix_cpu_timers = 1;
- }
+ /* Check whether the kernel supports CPU clocks at all.
+ If not, record it for the future. */
+ r = INTERNAL_VSYSCALL (clock_getres, err, 2,
+ MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
+ NULL);
+ if (INTERNAL_SYSCALL_ERROR_P (r, err))
+ __libc_missing_posix_cpu_timers = 1;
}
}
@@ -76,53 +64,11 @@ maybe_syscall_settime_cpu (clockid_t clock_id, const struct timespec *tp)
#endif
-#ifdef __ASSUME_POSIX_TIMERS
-/* This means the REALTIME clock is definitely supported in the
- kernel. */
-# define SYSDEP_SETTIME \
+/* The REALTIME clock is definitely supported in the kernel. */
+#define SYSDEP_SETTIME \
case CLOCK_REALTIME: \
retval = INLINE_SYSCALL (clock_settime, 2, clock_id, tp); \
break
-#elif defined __NR_clock_settime
-/* Is the syscall known to exist? */
-extern int __libc_missing_posix_timers attribute_hidden;
-
-/* The REALTIME clock might be available. Try the syscall first. */
-# define SYSDEP_SETTIME \
- case CLOCK_REALTIME: \
- case CLOCK_REALTIME_COARSE: \
- { \
- int e = EINVAL; \
- \
- if (!__libc_missing_posix_timers) \
- { \
- INTERNAL_SYSCALL_DECL (err); \
- int r = INTERNAL_SYSCALL (clock_settime, err, 2, clock_id, tp); \
- if (!INTERNAL_SYSCALL_ERROR_P (r, err)) \
- { \
- retval = 0; \
- break; \
- } \
- \
- e = INTERNAL_SYSCALL_ERRNO (r, err); \
- if (e == ENOSYS) \
- { \
- __libc_missing_posix_timers = 1; \
- e = EINVAL; \
- } \
- } \
- \
- /* Fallback code. */ \
- if (e == EINVAL && clock_id == CLOCK_REALTIME) \
- HANDLE_REALTIME; \
- else \
- { \
- __set_errno (e); \
- retval = -1; \
- } \
- } \
- break
-#endif
#ifdef __NR_clock_settime
/* We handled the REALTIME clock here. */
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index 0aa01c9..6b0eb95 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -92,10 +92,6 @@
# define __ASSUME_MMAP2_SYSCALL 1
#endif
-/* Beginning with 2.5.63 support for realtime and monotonic clocks and
- timers based on them is available. */
-#define __ASSUME_POSIX_TIMERS 1
-
/* Beginning with 2.6.12 the clock and timer supports CPU clocks. */
#define __ASSUME_POSIX_CPU_TIMERS 1
--
Joseph S. Myers
joseph@codesourcery.comAttachment:
glibc-26-timers-w
Description: Text document
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