xtensa: switch to generic clone()

	select GENERIC_KERNEL_THREAD

	select GENERIC_KERNEL_EXECVE

	select ARCH_WANT_OPTIONAL_GPIOLIB

	select CLONE_BACKWARDS

	help

	  Xtensa processors are 32-bit RISC machines designed by Tensilica

	  primarily for embedded systems.  These processors are both

struct pt_regs;

struct sigaction;

asmlinkage long xtensa_clone(unsigned long, unsigned long, struct pt_regs*);

asmlinkage long xtensa_ptrace(long, long, long, long);

asmlinkage long xtensa_sigreturn(struct pt_regs*);

asmlinkage long xtensa_rt_sigreturn(struct pt_regs*);

#define _XTENSA_UNISTD_H

#define __ARCH_WANT_SYS_EXECVE

#define __ARCH_WANT_SYS_CLONE

#include <uapi/asm/unistd.h>

/*

/* Process Operations */

#define __NR_clone 				116

__SYSCALL(116, xtensa_clone, 5)

__SYSCALL(116, sys_clone, 5)

#define __NR_execve 				117

__SYSCALL(117, sys_execve, 3)

#define __NR_exit 				118

{

	return 0;

}

asmlinkage

long xtensa_clone(unsigned long clone_flags, unsigned long newsp,

                  void __user *parent_tid, void *child_tls,

                  void __user *child_tid, long a5,

                  struct pt_regs *regs)

{

        return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);

}