diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/arm/vfork.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/arm/vfork.S | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/vfork.S b/sysdeps/unix/sysv/linux/arm/vfork.S index a2c6bf3407..0630c7ff06 100644 --- a/sysdeps/unix/sysv/linux/arm/vfork.S +++ b/sysdeps/unix/sysv/linux/arm/vfork.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1999, 2002 Free Software Foundation, Inc. +/* Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Philip Blundell <philb@gnu.org>. @@ -20,6 +20,7 @@ #include <sysdep.h> #define _ERRNO_H 1 #include <bits/errno.h> +#include <kernel-features.h> /* Clone the calling process, but without copying the whole address space. The calling process is suspended until the new process exits or is @@ -33,17 +34,23 @@ ENTRY (__vfork) cmn a1, #4096 RETINSTR(movcc, pc, lr) +# ifdef __ASSUME_VFORK_SYSCALL + b PLTJMP(C_SYMBOL_NAME(__syscall_error)) +# else /* Check if vfork syscall is known at all. */ ldr a2, =-ENOSYS teq a1, a2 bne PLTJMP(C_SYMBOL_NAME(__syscall_error)) +# endif #endif +#ifndef __ASSUME_VFORK_SYSCALL /* If we don't have vfork, fork is close enough. */ swi __NR_fork cmn a1, #4096 RETINSTR(movcc, pc, lr) b PLTJMP(C_SYMBOL_NAME(__syscall_error)) +#endif PSEUDO_END (__vfork) libc_hidden_def (__vfork) |