Subversion Repositories openrisc

/* Support files for GNU libc.  Files in the C namespace go here.

   Files in the system namespace (ie those that start with an underscore)

   go in syscalls.c.

   Note: These functions are in a seperate file so that OS providers can

   overrride the system call stubs (defined in syscalls.c) without having

   to provide libc funcitons as well.  */

#include "swi.h"

#include <errno.h>

#include <unistd.h>

unsigned __attribute__((weak))

alarm (unsigned seconds)

{

        (void)seconds;

        return 0;

}

clock_t _clock(void);

clock_t __attribute__((weak))

clock(void)

{

      return _clock();

}

int _isatty(int fildes);

int __attribute__((weak))

isatty(int fildes)

{

        return _isatty(fildes);

}

int __attribute__((weak))

pause(void)

{

        errno = ENOSYS;

        return -1;

}

#include <sys/types.h>

#include <time.h>

unsigned __attribute__((weak))

sleep(unsigned seconds)

{

        clock_t t0 = _clock();

        clock_t dt = seconds * CLOCKS_PER_SEC;

        while (_clock() - t0  < dt);

        return 0;

}

int __attribute__((weak))

usleep(useconds_t useconds)

{

        clock_t t0 = _clock();

        clock_t dt = useconds / (1000000/CLOCKS_PER_SEC);

        while (_clock() - t0  < dt);

        return 0;

}