| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455 | /* vi: set sw=4 ts=4: *//* * vfork for uClibc * Copyright (C) 2000-2006 by Erik Andersen <andersen@uclibc.org> * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */#include <features.h>#define _ERRNO_H#include <bits/errno.h>#include <sys/syscall.h>#ifdef __NR_fork.text.global	__vfork.hidden	__vfork.type	__vfork,%function.align 4__vfork:#ifdef __NR_vfork	DO_CALL (vfork)	cmn	r0, #4096#if defined(__USE_BX__)	bxcc	lr#else	movcc	pc, lr#endif	/* Check if vfork even exists.  */	ldr     r1, =-ENOSYS	teq     r0, r1	bne     __error#endif	/* If we don't have vfork, use fork.  */	DO_CALL (fork)	cmn     r0, #4096	/* Syscall worked.  Return to child/parent */#if defined(__USE_BX__)	bxcc	lr#else	movcc   pc, lr#endif__error:	b	__syscall_error.size __vfork,.-__vforkweak_alias(__vfork,vfork)libc_hidden_weak(vfork)#endif
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