diff options
Diffstat (limited to 'librt')
| -rw-r--r-- | librt/mq_receive.c | 34 | ||||
| -rw-r--r-- | librt/mq_send.c | 35 | ||||
| -rw-r--r-- | librt/rt_stubs.c | 39 |
3 files changed, 75 insertions, 33 deletions
diff --git a/librt/mq_receive.c b/librt/mq_receive.c index 40447dfb9..26fc45194 100644 --- a/librt/mq_receive.c +++ b/librt/mq_receive.c @@ -2,22 +2,23 @@ * mq_receive.c - functions for receiving from message queue. */ -#include <errno.h> -#include <stddef.h> #include <sys/syscall.h> + +#ifdef __NR_mq_timedreceive + +#include <stddef.h> #include <mqueue.h> -#warning FIXME: hard dependency on ADVANCED REALTIME feature +#ifdef __UCLIBC_HAS_THREADS_NATIVE__ librt_hidden_proto(mq_timedreceive) +#else -#ifndef __UCLIBC_HAS_THREADS_NATIVE__ -#ifdef __NR_mq_timedreceive -#define __NR___syscall_mq_timedreceive __NR_mq_timedreceive -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 +# 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); +# ifdef __UCLIBC_HAS_ADVANCED_REALTIME__ /* * Receive the oldest from highest priority messages. * Stop waiting if abs_timeout expires. @@ -26,21 +27,22 @@ 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) { +#ifdef __UCLIBC_HAS_THREADS_NATIVE__ return mq_timedreceive(mqdes, msg_ptr, msg_len, msg_prio, NULL); +#else + return __syscall_mq_timedreceive(mqdes, msg_ptr, msg_len, msg_prio, NULL); +#endif } + +#endif diff --git a/librt/mq_send.c b/librt/mq_send.c index f0fcfa35a..78308d8d9 100644 --- a/librt/mq_send.c +++ b/librt/mq_send.c @@ -2,22 +2,23 @@ * mq_send.c - functions for sending to message queue. */ -#include <errno.h> -#include <stddef.h> #include <sys/syscall.h> + +#ifdef __NR_mq_timedsend + +#include <stddef.h> #include <mqueue.h> -#warning FIXME: hard dependency on ADVANCED REALTIME feature +#ifdef __UCLIBC_HAS_THREADS_NATIVE__ librt_hidden_proto(mq_timedsend) +#else -#ifndef __UCLIBC_HAS_THREADS_NATIVE__ -#ifdef __NR_mq_timedsend -#define __NR___syscall_mq_timedsend __NR_mq_timedsend -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 +# 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); +# ifdef __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. @@ -25,21 +26,21 @@ static __inline__ _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 } - -librt_hidden_def(mq_timedsend) +# endif #endif /* Add a message to queue */ int mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned int msg_prio) { +#ifdef __UCLIBC_HAS_THREADS_NATIVE__ return mq_timedsend(mqdes, msg_ptr, msg_len, msg_prio, NULL); +#else + return __syscall_mq_timedsend(mqdes, msg_ptr, msg_len, msg_prio, NULL); +#endif } + +#endif diff --git a/librt/rt_stubs.c b/librt/rt_stubs.c new file mode 100644 index 000000000..b2c09dea9 --- /dev/null +++ b/librt/rt_stubs.c @@ -0,0 +1,39 @@ +/* + * system call not available stub + * based on libc's stubs.c + * + * Copyright (C) 2009 Analog Devices Inc. + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +#include <errno.h> +#include <sys/syscall.h> + +#ifdef __UCLIBC_HAS_STUBS__ + +static int rt_enosys_stub(void) +{ + __set_errno(ENOSYS); + return -1; +} + +#define make_stub(stub) \ + link_warning(stub, #stub ": this function is not implemented") \ + strong_alias(rt_enosys_stub, stub) + +#ifndef __NR_mq_timedreceive +make_stub(mq_receive) +# ifdef __UCLIBC_HAS_ADVANCED_REALTIME__ +make_stub(mq_timedreceive) +# endif +#endif + +#ifndef __NR_mq_timedsend +make_stub(mq_send) +# ifdef __UCLIBC_HAS_ADVANCED_REALTIME__ +make_stub(mq_timedsend) +# endif +#endif + +#endif |