diff options
Diffstat (limited to 'arch/unicore32/kernel/sys.c')
| -rw-r--r-- | arch/unicore32/kernel/sys.c | 63 | 
1 files changed, 0 insertions, 63 deletions
diff --git a/arch/unicore32/kernel/sys.c b/arch/unicore32/kernel/sys.c index fabdee96110..9680134b31f 100644 --- a/arch/unicore32/kernel/sys.c +++ b/arch/unicore32/kernel/sys.c @@ -42,69 +42,6 @@ asmlinkage long __sys_clone(unsigned long clone_flags, unsigned long newsp,  			parent_tid, child_tid);  } -/* sys_execve() executes a new program. - * This is called indirectly via a small wrapper - */ -asmlinkage long __sys_execve(const char __user *filename, -			  const char __user *const __user *argv, -			  const char __user *const __user *envp, -			  struct pt_regs *regs) -{ -	int error; -	struct filename *fn; - -	fn = getname(filename); -	error = PTR_ERR(fn); -	if (IS_ERR(fn)) -		goto out; -	error = do_execve(fn->name, argv, envp, regs); -	putname(fn); -out: -	return error; -} - -int kernel_execve(const char *filename, -		  const char *const argv[], -		  const char *const envp[]) -{ -	struct pt_regs regs; -	int ret; - -	memset(®s, 0, sizeof(struct pt_regs)); -	ret = do_execve(filename, -			(const char __user *const __user *)argv, -			(const char __user *const __user *)envp, ®s); -	if (ret < 0) -		goto out; - -	/* -	 * Save argc to the register structure for userspace. -	 */ -	regs.UCreg_00 = ret; - -	/* -	 * We were successful.  We won't be returning to our caller, but -	 * instead to user space by manipulating the kernel stack. -	 */ -	asm("add	r0, %0, %1\n\t" -		"mov	r1, %2\n\t" -		"mov	r2, %3\n\t" -		"mov	r22, #0\n\t"	/* not a syscall */ -		"mov	r23, %0\n\t"	/* thread structure */ -		"b.l	memmove\n\t"	/* copy regs to top of stack */ -		"mov	sp, r0\n\t"	/* reposition stack pointer */ -		"b	ret_to_user" -		: -		: "r" (current_thread_info()), -		  "Ir" (THREAD_START_SP - sizeof(regs)), -		  "r" (®s), -		  "Ir" (sizeof(regs)) -		: "r0", "r1", "r2", "r3", "ip", "lr", "memory"); - - out: -	return ret; -} -  /* Note: used by the compat code even in 64-bit Linux. */  SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,  		unsigned long, prot, unsigned long, flags,  |