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-rw-r--r--sysdeps/unix/sysv/linux/clock_getcpuclockid.c46
-rw-r--r--sysdeps/unix/sysv/linux/clock_getres.c88
-rw-r--r--sysdeps/unix/sysv/linux/clock_gettime.c98
-rw-r--r--sysdeps/unix/sysv/linux/clock_nanosleep.c43
-rw-r--r--sysdeps/unix/sysv/linux/clock_settime.c74
-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h4
6 files changed, 56 insertions, 297 deletions
diff --git a/sysdeps/unix/sysv/linux/clock_getcpuclockid.c b/sysdeps/unix/sysv/linux/clock_getcpuclockid.c
index c6ff466712..1cfdf3489b 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 e7e3138543..2bada33b40 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 446fbb66f6..e333d8d9e8 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 e003ba21e6..110296363a 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 8cf3209803..f75ceca249 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 0aa01c95ba..6b0eb95c52 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
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 17:43:56 +0000