* i386-tdep.h (i386_displaced_step_copy_insn): Declare.

	* i386-tdep.h (i386_displaced_step_copy_insn): Declare.
	* i386-tdep.c (i386_displaced_step_copy_insn): New function.
	(i386_syscall_p): Change type of lengthp to int.
	(i386_displaced_step_fixup): Handle kernels that run one past a
	syscall insn.
	* i386-linux-tdep.c (i386_linux_init_abi): Use
	i386_displaced_step_copy_insn instead of
	simple_displaced_step_copy_insn.