[PATCH] xtensa: remove old syscalls

xtensa is now in -rc1, with the obsolete syscalls still in there, so I
guess this about the last chance to correct the ABI.  Applying the patch
obviously breaks all sorts of user space binaries and probably also
requires the appropriate changes to be made to libc.

On the other hand, if a decision is made to keep the broken interface, it
should at least be a conscious one instead of an oversight.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 30 insertions, 179 deletions

diff --git a/arch/xtensa/kernel/syscalls.c b/arch/xtensa/kernel/syscalls.c
index abc8ed6..3540d8b 100644
--- a/arch/xtensa/kernel/syscalls.c
+++ b/arch/xtensa/kernel/syscalls.c
@@ -46,8 +46,6 @@
 
 extern void do_syscall_trace(void);
 typedef int (*syscall_t)(void *a0,...);
-extern int (*do_syscalls)(struct pt_regs *regs, syscall_t fun,
-				     int narg);
 extern syscall_t sys_call_table[];
 extern unsigned char sys_narg_table[];
 
@@ -72,10 +70,8 @@ int sys_pipe(int __user *userfds)
 /*
  * Common code for old and new mmaps.
  */
-
-static inline long do_mmap2(unsigned long addr, unsigned long len,
-    			    unsigned long prot, unsigned long flags,
-			    unsigned long fd, unsigned long pgoff)
+long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
+	       unsigned long flags, unsigned long fd, unsigned long pgoff)
 {
 	int error = -EBADF;
 	struct file * file = NULL;
@@ -97,29 +93,6 @@ out:
 	return error;
 }
 
-unsigned long old_mmap(unsigned long addr, size_t len, int prot,
-		       int flags, int fd, off_t offset)
-{
-	return do_mmap2(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
-}
-
-long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
-	       unsigned long flags, unsigned long fd, unsigned long pgoff)
-{
-	return do_mmap2(addr, len, prot, flags, fd, pgoff);
-}
-
-int sys_fork(struct pt_regs *regs)
-{
-	return do_fork(SIGCHLD, regs->areg[1], regs, 0, NULL, NULL);
-}
-
-int sys_vfork(struct pt_regs *regs)
-{
-	return do_fork(CLONE_VFORK|CLONE_VM|SIGCHLD, regs->areg[1],
-		       regs, 0, NULL, NULL);
-}
-
 int sys_clone(struct pt_regs *regs)
 {
 	unsigned long clone_flags;
@@ -162,30 +135,6 @@ int sys_uname(struct old_utsname * name)
 	return -EFAULT;
 }
 
-int sys_olduname(struct oldold_utsname * name)
-{
-	int error;
-
-	if (!name)
-		return -EFAULT;
-	if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
-		return -EFAULT;
-
-	error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
-	error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
-	error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
-	error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
-	error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
-	error -= __put_user(0,name->release+__OLD_UTS_LEN);
-	error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
-	error -= __put_user(0,name->version+__OLD_UTS_LEN);
-	error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
-	error -= __put_user(0,name->machine+__OLD_UTS_LEN);
-
-	return error ? -EFAULT : 0;
-}
-
-
 /*
  * Build the string table for the builtin "poor man's strace".
  */
@@ -319,100 +268,3 @@ void system_call (struct pt_regs *regs)
 	regs->areg[2] = res;
 	do_syscall_trace();
 }
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-
-int sys_ipc (uint call, int first, int second,
-			int third, void __user *ptr, long fifth)
-{
-	int version, ret;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-	ret = -ENOSYS;
-
-	switch (call) {
-	case SEMOP:
-		ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
-				     second, NULL);
-		break;
-
-	case SEMTIMEDOP:
-		ret = sys_semtimedop (first, (struct sembuf __user *)ptr,
-				      second, (const struct timespec *) fifth);
-		break;
-
-	case SEMGET:
-		ret = sys_semget (first, second, third);
-		break;
-
-	case SEMCTL: {
-		union semun fourth;
-
-		if (ptr && !get_user(fourth.__pad, (void *__user *) ptr))
-			ret = sys_semctl (first, second, third, fourth);
-		break;
-		}
-
-	case MSGSND:
-		ret = sys_msgsnd (first, (struct msgbuf __user*) ptr,
-				  second, third);
-		break;
-
-	case MSGRCV:
-		switch (version) {
-		case 0: {
-			struct ipc_kludge tmp;
-
-			if (ptr && !copy_from_user(&tmp,
-					   (struct ipc_kludge *) ptr,
-					   sizeof (tmp)))
-				ret = sys_msgrcv (first, tmp.msgp, second,
-						  tmp.msgtyp, third);
-			break;
-			}
-
-		default:
-			ret = sys_msgrcv (first, (struct msgbuf __user *) ptr,
-					  second, 0, third);
-			break;
-		}
-		break;
-
-	case MSGGET:
-		ret = sys_msgget ((key_t) first, second);
-		break;
-
-	case MSGCTL:
-		ret = sys_msgctl (first, second, (struct msqid_ds __user*) ptr);
-		break;
-
-	case SHMAT: {
-		ulong raddr;
-		ret = do_shmat (first, (char __user *) ptr, second, &raddr);
-
-		if (!ret)
-			ret = put_user (raddr, (ulong __user *) third);
-
-		break;
-		}
-
-	case SHMDT:
-		ret = sys_shmdt ((char __user *)ptr);
-		break;
-
-	case SHMGET:
-		ret = sys_shmget (first, second, third);
-		break;
-
-	case SHMCTL:
-		ret = sys_shmctl (first, second, (struct shmid_ds __user*) ptr);
-		break;
-	}
-	return ret;
-}
-
diff --git a/arch/xtensa/kernel/syscalls.h b/arch/xtensa/kernel/syscalls.h
index 5b3f75f..0758069 100644
--- a/arch/xtensa/kernel/syscalls.h
+++ b/arch/xtensa/kernel/syscalls.h
@@ -25,20 +25,19 @@
  */
 
 SYSCALL(0, 0)		                /* 00 */
-
 SYSCALL(sys_exit, 1)
-SYSCALL(sys_fork, 0)
+SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_read, 3)
 SYSCALL(sys_write, 3)
 SYSCALL(sys_open, 3)			/* 05 */
 SYSCALL(sys_close, 1)
-SYSCALL(sys_waitpid, 3)
+SYSCALL(sys_ni_syscall, 3)
 SYSCALL(sys_creat, 2)
 SYSCALL(sys_link, 2)
 SYSCALL(sys_unlink, 1)			/* 10 */
 SYSCALL(sys_execve, 0)
 SYSCALL(sys_chdir, 1)
-SYSCALL(sys_time, 1)
+SYSCALL(sys_ni_syscall, 1)
 SYSCALL(sys_mknod, 3)
 SYSCALL(sys_chmod, 2)			/* 15 */
 SYSCALL(sys_lchown, 3)
@@ -47,19 +46,19 @@ SYSCALL(sys_stat, 2)
 SYSCALL(sys_lseek, 3)
 SYSCALL(sys_getpid, 0)			/* 20 */
 SYSCALL(sys_mount, 5)
-SYSCALL(sys_oldumount, 1)
+SYSCALL(sys_ni_syscall, 1)
 SYSCALL(sys_setuid, 1)
 SYSCALL(sys_getuid, 0)
-SYSCALL(sys_stime, 1)			/* 25 */
+SYSCALL(sys_ni_syscall, 1)		/* 25 */
 SYSCALL(sys_ptrace, 4)
-SYSCALL(sys_alarm, 1)
+SYSCALL(sys_ni_syscall, 1)
 SYSCALL(sys_fstat, 2)
-SYSCALL(sys_pause, 0)
+SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_utime, 2)			/* 30 */
 SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_access, 2)
-SYSCALL(sys_nice, 1)
+SYSCALL(sys_ni_syscall, 1)
 SYSCALL(sys_ni_syscall, 0)		/* 35 */
 SYSCALL(sys_sync, 0)
 SYSCALL(sys_kill, 2)
@@ -73,7 +72,7 @@ SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_brk, 1)			/* 45 */
 SYSCALL(sys_setgid, 1)
 SYSCALL(sys_getgid, 0)
-SYSCALL(sys_ni_syscall, 0)		/* was signal(2) */
+SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_geteuid, 0)
 SYSCALL(sys_getegid, 0)			/* 50 */
 SYSCALL(sys_acct, 1)
@@ -84,21 +83,21 @@ SYSCALL(sys_fcntl, 3)			/* 55 */
 SYSCALL(sys_ni_syscall, 2)
 SYSCALL(sys_setpgid, 2)
 SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_olduname, 1)
+SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_umask, 1)			/* 60 */
 SYSCALL(sys_chroot, 1)
 SYSCALL(sys_ustat, 2)
 SYSCALL(sys_dup2, 2)
 SYSCALL(sys_getppid, 0)
-SYSCALL(sys_getpgrp, 0)			/* 65 */
+SYSCALL(sys_ni_syscall, 0)		/* 65 */
 SYSCALL(sys_setsid, 0)
 SYSCALL(sys_sigaction, 3)
-SYSCALL(sys_sgetmask, 0)
-SYSCALL(sys_ssetmask, 1)
+SYSCALL(sys_ni_syscall, 0)
+SYSCALL(sys_ni_syscall, 1)
 SYSCALL(sys_setreuid, 2)		/* 70 */
 SYSCALL(sys_setregid, 2)
 SYSCALL(sys_sigsuspend, 0)
-SYSCALL(sys_sigpending, 1)
+SYSCALL(sys_ni_syscall, 1)
 SYSCALL(sys_sethostname, 2)
 SYSCALL(sys_setrlimit, 2)		/* 75 */
 SYSCALL(sys_getrlimit, 2)
@@ -107,15 +106,15 @@ SYSCALL(sys_gettimeofday, 2)
 SYSCALL(sys_settimeofday, 2)
 SYSCALL(sys_getgroups, 2)		/* 80 */
 SYSCALL(sys_setgroups, 2)
-SYSCALL(sys_ni_syscall, 0)		 /* old_select */
+SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_symlink, 2)
 SYSCALL(sys_lstat, 2)
 SYSCALL(sys_readlink, 3)		/* 85 */
 SYSCALL(sys_uselib, 1)
 SYSCALL(sys_swapon, 2)
 SYSCALL(sys_reboot, 3)
-SYSCALL(old_readdir, 3)
-SYSCALL(old_mmap, 6)			/* 90 */
+SYSCALL(sys_ni_syscall, 3)
+SYSCALL(sys_ni_syscall, 6)		/* 90 */
 SYSCALL(sys_munmap, 2)
 SYSCALL(sys_truncate, 2)
 SYSCALL(sys_ftruncate, 2)
@@ -127,7 +126,7 @@ SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_statfs, 2)
 SYSCALL(sys_fstatfs, 2)			/* 100 */
 SYSCALL(sys_ni_syscall, 3)
-SYSCALL(sys_socketcall, 2)
+SYSCALL(sys_ni_syscall, 2)
 SYSCALL(sys_syslog, 3)
 SYSCALL(sys_setitimer, 3)
 SYSCALL(sys_getitimer, 2)		/* 105 */
@@ -137,32 +136,32 @@ SYSCALL(sys_newfstat, 2)
 SYSCALL(sys_uname, 1)
 SYSCALL(sys_ni_syscall, 0)		/* 110 */
 SYSCALL(sys_vhangup, 0)
-SYSCALL(sys_ni_syscall, 0)		/* was sys_idle() */
+SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_wait4, 4)
 SYSCALL(sys_swapoff, 1)			/* 115 */
 SYSCALL(sys_sysinfo, 1)
-SYSCALL(sys_ipc, 5)   			/* 6 really, but glibc uses only 5) */
+SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_fsync, 1)
 SYSCALL(sys_sigreturn, 0)
 SYSCALL(sys_clone, 0)			/* 120 */
 SYSCALL(sys_setdomainname, 2)
 SYSCALL(sys_newuname, 1)
-SYSCALL(sys_ni_syscall, 0) 		/* sys_modify_ldt */
+SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_adjtimex, 1)
 SYSCALL(sys_mprotect, 3)		/* 125 */
-SYSCALL(sys_sigprocmask, 3)
-SYSCALL(sys_ni_syscall, 2)		/* old sys_create_module */
+SYSCALL(sys_ni_syscall, 3)
+SYSCALL(sys_ni_syscall, 2)
 SYSCALL(sys_init_module, 2)
 SYSCALL(sys_delete_module, 1)
-SYSCALL(sys_ni_syscall, 1)		/* old sys_get_kernel_sysm */	/* 130 */
+SYSCALL(sys_ni_syscall, 1)		/* 130 */
 SYSCALL(sys_quotactl, 0)
 SYSCALL(sys_getpgid, 1)
 SYSCALL(sys_fchdir, 1)
 SYSCALL(sys_bdflush, 2)
 SYSCALL(sys_sysfs, 3)			/* 135 */
 SYSCALL(sys_personality, 1)
-SYSCALL(sys_ni_syscall, 0)		/* for afs_syscall */
+SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_setfsuid, 1)
 SYSCALL(sys_setfsgid, 1)
 SYSCALL(sys_llseek, 5)			/* 140 */
@@ -212,7 +211,7 @@ SYSCALL(sys_socket, 3)
 SYSCALL(sys_socketpair, 4)
 SYSCALL(sys_setresuid, 3)		/* 185 */
 SYSCALL(sys_getresuid, 3)
-SYSCALL(sys_ni_syscall, 5)		/* old sys_query_module */
+SYSCALL(sys_ni_syscall, 5)
 SYSCALL(sys_poll, 3)
 SYSCALL(sys_nfsservctl, 3)
 SYSCALL(sys_setresgid, 3)		/* 190 */
@@ -235,7 +234,7 @@ SYSCALL(sys_sigaltstack, 0)
 SYSCALL(sys_sendfile, 4)
 SYSCALL(sys_ni_syscall, 0)
 SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_mmap2, 6)			/* 210 */
+SYSCALL(sys_mmap, 6)			/* 210 */
 SYSCALL(sys_truncate64, 2)
 SYSCALL(sys_ftruncate64, 2)
 SYSCALL(sys_stat64, 2)
@@ -245,4 +244,4 @@ SYSCALL(sys_pivot_root, 2)
 SYSCALL(sys_mincore, 3)
 SYSCALL(sys_madvise, 3)
 SYSCALL(sys_getdents64, 3)
-SYSCALL(sys_vfork, 0)			/* 220 */
+SYSCALL(sys_ni_syscall, 0)		/* 220 */