[ALPHA] Pass pt_regs as pointer to execve and sigprocmask syscalls.

arch/alpha/kernel/entry.S

@@ -924,6 +924,24 @@ sys_ptrace:
 	jmp	$31, do_sys_ptrace
 .end sys_ptrace
 
+	.align	4
+	.globl	sys_execve
+	.ent	sys_execve
+sys_execve:
+	.prologue 0
+	mov	$sp, $19
+	jmp	$31, do_sys_execve
+.end sys_execve
+
+	.align	4
+	.globl	osf_sigprocmask
+	.ent	osf_sigprocmask
+osf_sigprocmask:
+	.prologue 0
+	mov	$sp, $18
+	jmp	$31, do_osf_sigprocmask
+.end osf_sigprocmask
+
 	.align	4
 	.globl	alpha_ni_syscall
 	.ent	alpha_ni_syscall

arch/alpha/kernel/process.c

@@ -456,19 +456,10 @@ dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task)
 
 /*
  * sys_execve() executes a new program.
- *
- * This works due to the alpha calling sequence: the first 6 args
- * are gotten from registers, while the rest is on the stack, so
- * we get a0-a5 for free, and then magically find "struct pt_regs"
- * on the stack for us..
- *
- * Don't do this at home.
  */
 asmlinkage int
-sys_execve(char __user *ufilename, char __user * __user *argv,
-	   char __user * __user *envp,
-	   unsigned long a3, unsigned long a4, unsigned long a5,
-	   struct pt_regs regs)
+do_sys_execve(char __user *ufilename, char __user * __user *argv,
+	      char __user * __user *envp, struct pt_regs *regs)
 {
 	int error;
 	char *filename;
@@ -477,7 +468,7 @@ sys_execve(char __user *ufilename, char __user * __user *argv,
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
-	error = do_execve(filename, argv, envp, &regs);
+	error = do_execve(filename, argv, envp, regs);
 	putname(filename);
 out:
 	return error;

arch/alpha/kernel/signal.c

@@ -53,8 +53,7 @@ static int do_signal(sigset_t *, struct pt_regs *, struct switch_stack *,
  * operation, as all of this is local to this thread.
  */
 asmlinkage unsigned long
-osf_sigprocmask(int how, unsigned long newmask, long a2, long a3,
-		long a4, long a5, struct pt_regs regs)
+do_osf_sigprocmask(int how, unsigned long newmask, struct pt_regs *regs)
 {
 	unsigned long oldmask = -EINVAL;
 
@@ -78,7 +77,7 @@ osf_sigprocmask(int how, unsigned long newmask, long a2, long a3,
 		recalc_sigpending();
 		spin_unlock_irq(&current->sighand->siglock);
 
-		(&regs)->r0 = 0;		/* special no error return */
+		regs->r0 = 0;		/* special no error return */
 	}
 	return oldmask;
 }