fork.c 718 B

1234567891011121314151617181920212223242526272829303132333435
  1. /* vi: set sw=4 ts=4: */
  2. /*
  3. * fork() for uClibc
  4. *
  5. * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
  6. *
  7. * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
  8. */
  9. #include <sys/syscall.h>
  10. #include <unistd.h>
  11. #ifdef __ARCH_USE_MMU__
  12. #ifdef __NR_fork
  13. #define __NR___libc_fork __NR_fork
  14. extern __typeof(fork) __libc_fork;
  15. _syscall0(pid_t, __libc_fork)
  16. weak_alias(__libc_fork,fork)
  17. libc_hidden_weak(fork)
  18. #endif
  19. #elif defined __UCLIBC_HAS_STUBS__
  20. extern __typeof(fork) __libc_fork;
  21. pid_t __libc_fork(void)
  22. {
  23. __set_errno(ENOSYS);
  24. return -1;
  25. }
  26. weak_alias(__libc_fork,fork)
  27. libc_hidden_weak(fork)
  28. link_warning(fork, "fork: this function is not implemented on no-mmu systems")
  29. #endif