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authorGravatar Austin Foxley <austinf@cetoncorp.com>2009-10-17 14:42:01 -0700
committerGravatar Austin Foxley <austinf@cetoncorp.com>2009-10-17 14:42:01 -0700
commita202cf6f119f41532b60ad28bc48746b535fd34c (patch)
tree03e96b87732058543d681803a829ee02238e5ab9 /librt
parent93e6d12ea06dc489cde0d96f78d623410703d33e (diff)
downloaduClibc-a202cf6f119f41532b60ad28bc48746b535fd34c.tar.gz
uClibc-a202cf6f119f41532b60ad28bc48746b535fd34c.tar.bz2
librt additions that are now possible with nptl
* clock_getcpuclockid, clock_gettime, clock_nanosleep, mq_receive, mq_send, mq_timedreceive, mq_timedsend, _SC_MONOTONIC_CLOCK Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'librt')
-rw-r--r--librt/Makefile.in31
-rw-r--r--librt/clock_getcpuclockid.c104
-rw-r--r--librt/clock_gettime.c301
-rw-r--r--librt/clock_nanosleep.c96
-rw-r--r--librt/kernel-posix-cpu-timers.h18
-rw-r--r--librt/kernel-posix-timers.h14
-rw-r--r--librt/mq_receive.c41
-rw-r--r--librt/mq_send.c40
-rw-r--r--librt/mq_timedreceive.S10
-rw-r--r--librt/mq_timedsend.S10
10 files changed, 613 insertions, 52 deletions
diff --git a/librt/Makefile.in b/librt/Makefile.in
index aaa19185a..ea1d03eb8 100644
--- a/librt/Makefile.in
+++ b/librt/Makefile.in
@@ -9,7 +9,12 @@ subdirs += librt
CFLAGS-librt := -DNOT_IN_libc -DIS_IN_librt $(SSP_ALL_CFLAGS)
-LDFLAGS-librt.so := $(LDFLAGS) $(call link.asneeded,-lc)
+ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
+LDFLAGS-librt.so := $(LDFLAGS) $(top_builddir)lib/libdl.so \
+ $(top_builddir)lib/libpthread.so
+else
+LDFLAGS-librt.so := $(LDFLAGS)
+endif
LIBS-librt.so := $(LIBS)
@@ -19,22 +24,36 @@ librt_DIR := $(top_srcdir)librt
librt_OUT := $(top_builddir)librt
ifeq ($(UCLIBC_HAS_REALTIME),y)
-librt_SRC := $(wildcard $(librt_DIR)/*.c)
-librt_OBJ := $(patsubst $(librt_DIR)/%.c,$(librt_OUT)/%.o,$(librt_SRC))
+ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y)
+librt_CSRC := $(filter-out mq_notify.c timer_create.c timer_delete.c \
+ timer_getoverr.c timer_gettime.c timer_settime.c, \
+ $(notdir $(wildcard $(librt_DIR)/*.c)))
+librt_SSRC := $(wildcard $(librt_DIR)/*.S)
+librt_OBJ := $(patsubst %.c,$(librt_OUT)/%.o,$(librt_CSRC))
+librt_OBJ += $(patsubst $(librt_DIR)/%.S,$(librt_OUT)/%.o,$(librt_SSRC))
+else
+librt_SRC := $(filter-out clock_nanosleep.c clock_getcpuclockid.c clock_gettime.c, \
+ $(notdir $(wildcard $(librt_DIR)/*.c)))
+librt_OBJ := $(patsubst %.c,$(librt_OUT)/%.o,$(librt_SRC))
+endif
+
+ASFLAGS-mq_timedreceive.S = -D_LIBC_REENTRANT
+ASFLAGS-mq_timedsend.S = -D_LIBC_REENTRANT
ifeq ($(DOPIC),y)
librt-a-y += $(librt_OBJ:.o=.os)
else
librt-a-y += $(librt_OBJ)
endif
-librt-so-y += $(librt_OBJ:.o=.os)
+librt-so-y += $(librt_OBJ:.o=.oS)
lib-a-y += $(top_builddir)lib/librt.a
lib-so-y += $(top_builddir)lib/librt.so
endif
-ifeq ($(DOPIC),y)
-$(top_builddir)lib/librt.so: $(top_builddir)lib/librt.a $(libc.depend)
+
+ifeq ($(DOPIC)$(UCLIBC_HAS_THREADS_NATIVE),yn)
+$(top_builddir)lib/librt.so: $(top_builddir)lib/librt.a $(libc.dpend)
else
$(top_builddir)lib/librt.so: $(librt_OUT)/librt_so.a $(libc.depend)
endif
diff --git a/librt/clock_getcpuclockid.c b/librt/clock_getcpuclockid.c
new file mode 100644
index 000000000..704c57402
--- /dev/null
+++ b/librt/clock_getcpuclockid.c
@@ -0,0 +1,104 @@
+/* clock_getcpuclockid -- Get a clockid_t for process CPU time. Linux version.
+ Copyright (C) 2004, 2005 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <time.h>
+#include <sysdep.h>
+#include <unistd.h>
+#include <bits/kernel-features.h>
+#include "kernel-posix-cpu-timers.h"
+
+#ifndef HAS_CPUCLOCK
+# define HAS_CPUCLOCK 1
+#endif
+
+int
+clock_getcpuclockid (pid_t pid, clockid_t *clock_id)
+{
+#ifdef __NR_clock_getres
+ /* The clockid_t value is a simple computation from the PID.
+ But we do a clock_getres call to validate it. */
+
+ const clockid_t pidclock = MAKE_PROCESS_CPUCLOCK (pid, CPUCLOCK_SCHED);
+
+# 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
+ {
+ INTERNAL_SYSCALL_DECL (err);
+ int r = INTERNAL_SYSCALL (clock_getres, err, 2, pidclock, NULL);
+ if (!INTERNAL_SYSCALL_ERROR_P (r, err))
+ {
+ *clock_id = pidclock;
+ return 0;
+ }
+
+# if !(__ASSUME_POSIX_TIMERS > 0)
+ if (INTERNAL_SYSCALL_ERRNO (r, err) == ENOSYS)
+ {
+ /* 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
+# endif
+ /* The clock_getres system call checked the PID for us. */
+ return ESRCH;
+ }
+ else
+ return INTERNAL_SYSCALL_ERRNO (r, err);
+ }
+#endif
+
+ /* We don't allow any process ID but our own. */
+ if (pid != 0 && pid != getpid ())
+ return EPERM;
+
+#ifdef CLOCK_PROCESS_CPUTIME_ID
+ if (HAS_CPUCLOCK)
+ {
+ /* Store the number. */
+ *clock_id = CLOCK_PROCESS_CPUTIME_ID;
+
+ return 0;
+ }
+#endif
+
+ /* We don't have a timer for that. */
+ return ENOENT;
+}
diff --git a/librt/clock_gettime.c b/librt/clock_gettime.c
new file mode 100644
index 000000000..8308329b2
--- /dev/null
+++ b/librt/clock_gettime.c
@@ -0,0 +1,301 @@
+/* clock_gettime -- Get current time from a POSIX clockid_t. Linux version.
+ Copyright (C) 2003, 2004 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sysdep.h>
+#include <errno.h>
+#include <time.h>
+#include "kernel-posix-cpu-timers.h"
+#include <bits/kernel-features.h>
+
+
+#define SYSCALL_GETTIME \
+ retval = INLINE_SYSCALL (clock_gettime, 2, clock_id, tp); \
+ break
+
+#ifdef __ASSUME_POSIX_TIMERS
+
+/* This means the REALTIME and MONOTONIC clock are definitely
+ supported in the kernel. */
+# define SYSDEP_GETTIME \
+ SYSDEP_GETTIME_CPUTIME \
+ case CLOCK_REALTIME: \
+ case CLOCK_MONOTONIC: \
+ SYSCALL_GETTIME
+
+# 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_SYSCALL (clock_gettime, err, 2, 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: \
+ 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
+# define HANDLED_CPUTIME 1
+
+# if __ASSUME_POSIX_CPU_TIMERS > 0
+
+# define SYSDEP_GETTIME_CPU SYSCALL_GETTIME
+# define SYSDEP_GETTIME_CPUTIME /* Default catches them too. */
+
+# else
+
+int __libc_missing_posix_cpu_timers attribute_hidden;
+
+static int
+maybe_syscall_gettime_cpu (clockid_t clock_id, struct timespec *tp)
+{
+ int e = EINVAL;
+
+ if (!__libc_missing_posix_cpu_timers)
+ {
+ INTERNAL_SYSCALL_DECL (err);
+ int r = INTERNAL_SYSCALL (clock_gettime, err, 2, clock_id, tp);
+ if (!INTERNAL_SYSCALL_ERROR_P (r, err))
+ 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)
+ {
+ /* 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);
+ if (INTERNAL_SYSCALL_ERROR_P (r, err))
+ __libc_missing_posix_cpu_timers = 1;
+ }
+ }
+ }
+
+ return e;
+}
+
+# define SYSDEP_GETTIME_CPU \
+ retval = maybe_syscall_gettime_cpu (clock_id, tp); \
+ if (retval == 0) \
+ break; \
+ if (retval != EINVAL || !__libc_missing_posix_cpu_timers) \
+ { \
+ __set_errno (retval); \
+ retval = -1; \
+ break; \
+ } \
+ retval = -1 /* Otherwise continue on to the HP_TIMING version. */;
+
+static inline int
+maybe_syscall_gettime_cputime (clockid_t clock_id, struct timespec *tp)
+{
+ return maybe_syscall_gettime_cpu
+ (clock_id == CLOCK_THREAD_CPUTIME_ID
+ ? MAKE_THREAD_CPUCLOCK (0, CPUCLOCK_SCHED)
+ : MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED),
+ tp);
+}
+
+# define SYSDEP_GETTIME_CPUTIME \
+ case CLOCK_PROCESS_CPUTIME_ID: \
+ case CLOCK_THREAD_CPUTIME_ID: \
+ retval = maybe_syscall_gettime_cputime (clock_id, tp); \
+ if (retval == 0) \
+ break; \
+ if (retval != EINVAL || !__libc_missing_posix_cpu_timers) \
+ { \
+ __set_errno (retval); \
+ retval = -1; \
+ break; \
+ } \
+ retval = hp_timing_gettime (clock_id, tp); \
+ break;
+# if !HP_TIMING_AVAIL
+# define hp_timing_gettime(clock_id, tp) (__set_errno (EINVAL), -1)
+# endif
+
+# endif
+#endif
+
+#include <errno.h>
+#include <stdint.h>
+#include <time.h>
+#include <sys/time.h>
+#include <libc-internal.h>
+#include <ldsodefs.h>
+
+
+#if HP_TIMING_AVAIL
+/* Clock frequency of the processor. We make it a 64-bit variable
+ because some jokers are already playing with processors with more
+ than 4GHz. */
+static hp_timing_t freq;
+
+
+/* This function is defined in the thread library. */
+extern int __pthread_clock_gettime (clockid_t clock_id, hp_timing_t freq,
+ struct timespec *tp)
+ __attribute__ ((__weak__));
+
+static int
+hp_timing_gettime (clockid_t clock_id, struct timespec *tp)
+{
+ hp_timing_t tsc;
+
+ if (__builtin_expect (freq == 0, 0))
+ {
+ /* This can only happen if we haven't initialized the `freq'
+ variable yet. Do this now. We don't have to protect this
+ code against multiple execution since all of them should
+ lead to the same result. */
+ freq = __get_clockfreq ();
+ if (__builtin_expect (freq == 0, 0))
+ /* Something went wrong. */
+ return -1;
+ }
+
+ if (clock_id != CLOCK_PROCESS_CPUTIME_ID
+ && __pthread_clock_gettime != NULL)
+ return __pthread_clock_gettime (clock_id, freq, tp);
+
+ /* Get the current counter. */
+ HP_TIMING_NOW (tsc);
+
+ /* Compute the offset since the start time of the process. */
+ tsc -= GL(dl_cpuclock_offset);
+
+ /* Compute the seconds. */
+ tp->tv_sec = tsc / freq;
+
+ /* And the nanoseconds. This computation should be stable until
+ we get machines with about 16GHz frequency. */
+ tp->tv_nsec = ((tsc % freq) * UINT64_C (1000000000)) / freq;
+
+ return 0;
+}
+#endif
+
+
+static inline int
+realtime_gettime (struct timespec *tp)
+{
+ struct timeval tv;
+ int retval = gettimeofday (&tv, NULL);
+ if (retval == 0)
+ /* Convert into `timespec'. */
+ TIMEVAL_TO_TIMESPEC (&tv, tp);
+ return retval;
+}
+
+librt_hidden_proto (clock_gettime)
+/* Get current value of CLOCK and store it in TP. */
+int
+clock_gettime (clockid_t clock_id, struct timespec *tp)
+{
+ int retval = -1;
+#ifndef HANDLED_REALTIME
+ struct timeval tv;
+#endif
+
+ switch (clock_id)
+ {
+#ifdef SYSDEP_GETTIME
+ SYSDEP_GETTIME;
+#endif
+
+#ifndef HANDLED_REALTIME
+ case CLOCK_REALTIME:
+ retval = gettimeofday (&tv, NULL);
+ if (retval == 0)
+ TIMEVAL_TO_TIMESPEC (&tv, tp);
+ break;
+#endif
+
+ default:
+#ifdef SYSDEP_GETTIME_CPU
+ SYSDEP_GETTIME_CPU;
+#endif
+#if HP_TIMING_AVAIL
+ if ((clock_id & ((1 << CLOCK_IDFIELD_SIZE) - 1))
+ == CLOCK_THREAD_CPUTIME_ID)
+ retval = hp_timing_gettime (clock_id, tp);
+ else
+#endif
+ __set_errno (EINVAL);
+ break;
+
+#if HP_TIMING_AVAIL && !defined HANDLED_CPUTIME
+ case CLOCK_PROCESS_CPUTIME_ID:
+ retval = hp_timing_gettime (clock_id, tp);
+ break;
+#endif
+ }
+
+ return retval;
+}
+librt_hidden_def (clock_gettime)
diff --git a/librt/clock_nanosleep.c b/librt/clock_nanosleep.c
new file mode 100644
index 000000000..69e60087e
--- /dev/null
+++ b/librt/clock_nanosleep.c
@@ -0,0 +1,96 @@
+/* Copyright (C) 2003, 2004, 2005 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <time.h>
+#include <errno.h>
+
+#include <sysdep-cancel.h>
+#include <bits/kernel-features.h>
+#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
+clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
+ struct timespec *rem)
+{
+ INTERNAL_SYSCALL_DECL (err);
+ int r;
+
+ if (clock_id == CLOCK_THREAD_CPUTIME_ID)
+ return EINVAL;
+ if (clock_id == CLOCK_PROCESS_CPUTIME_ID)
+ clock_id = MAKE_PROCESS_CPUCLOCK (0, CPUCLOCK_SCHED);
+
+ if (SINGLE_THREAD_P)
+ r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req, rem);
+ else
+ {
+ int oldstate = LIBC_CANCEL_ASYNC ();
+
+ r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req,
+ rem);
+
+ LIBC_CANCEL_RESET (oldstate);
+ }
+
+ 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/librt/kernel-posix-cpu-timers.h b/librt/kernel-posix-cpu-timers.h
new file mode 100644
index 000000000..164a90dde
--- /dev/null
+++ b/librt/kernel-posix-cpu-timers.h
@@ -0,0 +1,18 @@
+/* Parameters for the Linux kernel ABI for CPU clocks. */
+
+#define CPUCLOCK_PID(clock) ((pid_t) ~((clock) >> 3))
+#define CPUCLOCK_PERTHREAD(clock) \
+ (((clock) & (clockid_t) CPUCLOCK_PERTHREAD_MASK) != 0)
+#define CPUCLOCK_PID_MASK 7
+#define CPUCLOCK_PERTHREAD_MASK 4
+#define CPUCLOCK_WHICH(clock) ((clock) & (clockid_t) CPUCLOCK_CLOCK_MASK)
+#define CPUCLOCK_CLOCK_MASK 3
+#define CPUCLOCK_PROF 0
+#define CPUCLOCK_VIRT 1
+#define CPUCLOCK_SCHED 2
+#define CPUCLOCK_MAX 3
+
+#define MAKE_PROCESS_CPUCLOCK(pid, clock) \
+ ((~(clockid_t) (pid) << 3) | (clockid_t) (clock))
+#define MAKE_THREAD_CPUCLOCK(tid, clock) \
+ MAKE_PROCESS_CPUCLOCK((tid), (clock) | CPUCLOCK_PERTHREAD_MASK)
diff --git a/librt/kernel-posix-timers.h b/librt/kernel-posix-timers.h
index bf246c925..27d3f1fd7 100644
--- a/librt/kernel-posix-timers.h
+++ b/librt/kernel-posix-timers.h
@@ -10,6 +10,20 @@
#include <pthread.h>
#endif
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+/* Nonzero if the system calls are not available. */
+extern int __no_posix_timers attribute_hidden;
+
+/* Callback to start helper thread. */
+extern void __start_helper_thread (void) attribute_hidden;
+
+/* Control variable for helper thread creation. */
+extern pthread_once_t __helper_once attribute_hidden;
+
+/* TID of the helper thread. */
+extern pid_t __helper_tid attribute_hidden;
+#endif
+
/* Type of timers in the kernel */
typedef int kernel_timer_t;
diff --git a/librt/mq_receive.c b/librt/mq_receive.c
index c0392b0f9..40447dfb9 100644
--- a/librt/mq_receive.c
+++ b/librt/mq_receive.c
@@ -6,13 +6,18 @@
#include <stddef.h>
#include <sys/syscall.h>
#include <mqueue.h>
+#warning FIXME: hard dependency on ADVANCED REALTIME feature
+librt_hidden_proto(mq_timedreceive)
+
+#ifndef __UCLIBC_HAS_THREADS_NATIVE__
#ifdef __NR_mq_timedreceive
#define __NR___syscall_mq_timedreceive __NR_mq_timedreceive
-static _syscall5(int, __syscall_mq_timedreceive, int, mqdes,
- char *, msg_ptr, size_t, msg_len, unsigned int *,
- msg_prio, const void *, abs_timeout)
-# if defined __USE_XOPEN2K && defined __UCLIBC_HAS_ADVANCED_REALTIME__
+static __inline__ _syscall5(int, __syscall_mq_timedreceive, int, mqdes,
+ char *, msg_ptr, size_t, msg_len, unsigned int *,
+ msg_prio, const void *, abs_timeout);
+#endif
+
/*
* Receive the oldest from highest priority messages.
* Stop waiting if abs_timeout expires.
@@ -21,31 +26,21 @@ ssize_t mq_timedreceive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
unsigned int *msg_prio,
const struct timespec *abs_timeout)
{
+#ifdef __NR_mq_timedreceive
return __syscall_mq_timedreceive(mqdes, msg_ptr, msg_len, msg_prio,
abs_timeout);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
}
-# endif
+
+librt_hidden_def(mq_timedreceive)
+#endif
/* Receive the oldest from highest priority messages */
ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
unsigned int *msg_prio)
{
- return __syscall_mq_timedreceive(mqdes, msg_ptr, msg_len, msg_prio, NULL);
+ return mq_timedreceive(mqdes, msg_ptr, msg_len, msg_prio, NULL);
}
-#elif defined __UCLIBC_HAS_STUBS__
-# if defined __USE_XOPEN2K && defined __UCLIBC_HAS_ADVANCED_REALTIME__
-ssize_t mq_timedreceive(mqd_t mqdes attribute_unused, char *msg_ptr attribute_unused,
- size_t msg_len attribute_unused, unsigned int *msg_prio attribute_unused,
- const struct timespec *abs_timeout attribute_unused)
-{
- __set_errno(ENOSYS);
- return -1;
-}
-# endif
-ssize_t mq_receive(mqd_t mqdes attribute_unused, char *msg_ptr attribute_unused,
- size_t msg_len attribute_unused, unsigned int *msg_prio attribute_unused)
-{
- __set_errno(ENOSYS);
- return -1;
-}
-#endif
diff --git a/librt/mq_send.c b/librt/mq_send.c
index 4c1a492b4..f0fcfa35a 100644
--- a/librt/mq_send.c
+++ b/librt/mq_send.c
@@ -6,14 +6,18 @@
#include <stddef.h>
#include <sys/syscall.h>
#include <mqueue.h>
+#warning FIXME: hard dependency on ADVANCED REALTIME feature
+librt_hidden_proto(mq_timedsend)
+
+#ifndef __UCLIBC_HAS_THREADS_NATIVE__
#ifdef __NR_mq_timedsend
#define __NR___syscall_mq_timedsend __NR_mq_timedsend
-static _syscall5(int, __syscall_mq_timedsend, int, mqdes,
- const char *, msg_ptr, size_t, msg_len, unsigned int,
- msg_prio, const void *, abs_timeout);
+static __inline__ _syscall5(int, __syscall_mq_timedsend, int, mqdes,
+ const char *, msg_ptr, size_t, msg_len, unsigned int,
+ msg_prio, const void *, abs_timeout);
+#endif
-# if defined __USE_XOPEN2K && defined __UCLIBC_HAS_ADVANCED_REALTIME__
/*
* Add a message to queue. If O_NONBLOCK is set and queue is full, wait
* for sufficient room in the queue until abs_timeout expires.
@@ -21,31 +25,21 @@ static _syscall5(int, __syscall_mq_timedsend, int, mqdes,
int mq_timedsend(mqd_t mqdes, const char *msg_ptr, size_t msg_len,
unsigned int msg_prio, const struct timespec *abs_timeout)
{
+#ifdef __NR_mq_timedsend
return __syscall_mq_timedsend(mqdes, msg_ptr, msg_len, msg_prio,
abs_timeout);
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
}
-# endif
+
+librt_hidden_def(mq_timedsend)
+#endif
/* Add a message to queue */
int mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len,
unsigned int msg_prio)
{
- return __syscall_mq_timedsend(mqdes, msg_ptr, msg_len, msg_prio, NULL);
+ return mq_timedsend(mqdes, msg_ptr, msg_len, msg_prio, NULL);
}
-#elif defined __UCLIBC_HAS_STUBS__
-# if defined __USE_XOPEN2K && defined __UCLIBC_HAS_ADVANCED_REALTIME__
-int mq_timedsend(mqd_t mqdes attribute_unused, const char *msg_ptr attribute_unused,
- size_t msg_len attribute_unused, unsigned int msg_prio attribute_unused,
- const struct timespec *abs_timeout attribute_unused)
-{
- __set_errno(ENOSYS);
- return -1;
-}
-# endif
-int mq_send(mqd_t mqdes attribute_unused, const char *msg_ptr attribute_unused,
- size_t msg_len attribute_unused, unsigned int msg_prio attribute_unused)
-{
- __set_errno(ENOSYS);
- return -1;
-}
-#endif
diff --git a/librt/mq_timedreceive.S b/librt/mq_timedreceive.S
new file mode 100644
index 000000000..015eb8842
--- /dev/null
+++ b/librt/mq_timedreceive.S
@@ -0,0 +1,10 @@
+#include <sysdep-cancel.h>
+#ifndef __NR_mq_timedreceive
+#error Missing definition of NR_timedreceive needed for cancellation.
+#endif
+PSEUDO (__mq_timedreceive, mq_timedreceive, 5)
+ret
+PSEUDO_END(__mq_timedreceive)
+librt_hidden_def (__mq_timedreceive)
+weak_alias (__mq_timedreceive, mq_timedreceive)
+librt_hidden_weak (mq_timedreceive)
diff --git a/librt/mq_timedsend.S b/librt/mq_timedsend.S
new file mode 100644
index 000000000..67758a3b9
--- /dev/null
+++ b/librt/mq_timedsend.S
@@ -0,0 +1,10 @@
+#include <sysdep-cancel.h>
+#ifndef __NR_mq_timedsend
+#error Missing definition of NR_timedsend needed for cancellation.
+#endif
+PSEUDO (__mq_timedsend, mq_timedsend, 5)
+ret
+PSEUDO_END(__mq_timedsend)
+librt_hidden_def (__mq_timedsend)
+weak_alias (__mq_timedsend, mq_timedsend)
+librt_hidden_weak (mq_timedsend)