um: merge arch/um/sys-{i386,x86_64}

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

21 files changed, 0 insertions, 2879 deletions

diff --git a/arch/um/sys-i386/Makefile b/arch/um/sys-i386/Makefile
deleted file mode 100644
index 231bb983a121..000000000000
--- a/arch/um/sys-i386/Makefile
+++ /dev/null
@@ -1,24 +0,0 @@
-#
-# Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
-#
-
-obj-y = bug.o bugs.o checksum.o delay.o fault.o ksyms.o ldt.o ptrace.o \
-	ptrace_user.o setjmp.o signal.o stub.o stub_segv.o syscalls.o sysrq.o \
-	sys_call_table.o tls.o mem.o
-
-obj-$(CONFIG_BINFMT_ELF) += elfcore.o
-
-subarch-obj-y = lib/string_32.o lib/atomic64_32.o lib/atomic64_cx8_32.o
-subarch-obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += lib/rwsem.o
-subarch-obj-$(CONFIG_HIGHMEM) += mm/highmem_32.o
-subarch-obj-$(CONFIG_MODULES) += kernel/module.o
-
-USER_OBJS := bugs.o ptrace_user.o fault.o
-
-extra-y += user-offsets.s
-$(obj)/user-offsets.s: c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS)
-
-UNPROFILE_OBJS := stub_segv.o
-CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING)
-
-include arch/um/scripts/Makefile.rules
diff --git a/arch/um/sys-i386/bug.c b/arch/um/sys-i386/bug.c
deleted file mode 100644
index 8d4f273f1219..000000000000
--- a/arch/um/sys-i386/bug.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2006 Jeff Dike (jdike@addtoit.com)
- * Licensed under the GPL V2
- */
-
-#include <linux/uaccess.h>
-#include <asm/errno.h>
-
-/* Mostly copied from i386/x86_86 - eliminated the eip < PAGE_OFFSET because
- * that's not relevant in skas mode.
- */
-
-int is_valid_bugaddr(unsigned long eip)
-{
-	unsigned short ud2;
-
-	if (probe_kernel_address((unsigned short __user *)eip, ud2))
-		return 0;
-
-	return ud2 == 0x0b0f;
-}
diff --git a/arch/um/sys-i386/bugs.c b/arch/um/sys-i386/bugs.c
deleted file mode 100644
index 7058e1fa903b..000000000000
--- a/arch/um/sys-i386/bugs.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#include <signal.h>
-#include "kern_util.h"
-#include "longjmp.h"
-#include "task.h"
-#include "sysdep/ptrace.h"
-
-/* Set during early boot */
-static int host_has_cmov = 1;
-static jmp_buf cmov_test_return;
-
-static void cmov_sigill_test_handler(int sig)
-{
-	host_has_cmov = 0;
-	longjmp(cmov_test_return, 1);
-}
-
-void arch_check_bugs(void)
-{
-	struct sigaction old, new;
-
-	printk(UM_KERN_INFO "Checking for host processor cmov support...");
-	new.sa_handler = cmov_sigill_test_handler;
-
-	/* Make sure that SIGILL is enabled after the handler longjmps back */
-	new.sa_flags = SA_NODEFER;
-	sigemptyset(&new.sa_mask);
-	sigaction(SIGILL, &new, &old);
-
-	if (setjmp(cmov_test_return) == 0) {
-		unsigned long foo = 0;
-		__asm__ __volatile__("cmovz %0, %1" : "=r" (foo) : "0" (foo));
-		printk(UM_KERN_CONT "Yes\n");
-	} else
-		printk(UM_KERN_CONT "No\n");
-
-	sigaction(SIGILL, &old, &new);
-}
-
-void arch_examine_signal(int sig, struct uml_pt_regs *regs)
-{
-	unsigned char tmp[2];
-
-	/*
-	 * This is testing for a cmov (0x0f 0x4x) instruction causing a
-	 * SIGILL in init.
-	 */
-	if ((sig != SIGILL) || (TASK_PID(get_current()) != 1))
-		return;
-
-	if (copy_from_user_proc(tmp, (void *) UPT_IP(regs), 2)) {
-		printk(UM_KERN_ERR "SIGILL in init, could not read "
-		       "instructions!\n");
-		return;
-	}
-
-	if ((tmp[0] != 0x0f) || ((tmp[1] & 0xf0) != 0x40))
-		return;
-
-	if (host_has_cmov == 0)
-		printk(UM_KERN_ERR "SIGILL caused by cmov, which this "
-		       "processor doesn't implement.  Boot a filesystem "
-		       "compiled for older processors");
-	else if (host_has_cmov == 1)
-		printk(UM_KERN_ERR "SIGILL caused by cmov, which this "
-		       "processor claims to implement");
-	else
-		printk(UM_KERN_ERR "Bad value for host_has_cmov (%d)",
-			host_has_cmov);
-}
diff --git a/arch/um/sys-i386/checksum.S b/arch/um/sys-i386/checksum.S
deleted file mode 100644
index f058d2f82e18..000000000000
--- a/arch/um/sys-i386/checksum.S
+++ /dev/null
@@ -1,458 +0,0 @@
-/*
- * INET		An implementation of the TCP/IP protocol suite for the LINUX
- *		operating system.  INET is implemented using the  BSD Socket
- *		interface as the means of communication with the user level.
- *
- *		IP/TCP/UDP checksumming routines
- *
- * Authors:	Jorge Cwik, <jorge@laser.satlink.net>
- *		Arnt Gulbrandsen, <agulbra@nvg.unit.no>
- *		Tom May, <ftom@netcom.com>
- *              Pentium Pro/II routines:
- *              Alexander Kjeldaas <astor@guardian.no>
- *              Finn Arne Gangstad <finnag@guardian.no>
- *		Lots of code moved from tcp.c and ip.c; see those files
- *		for more names.
- *
- * Changes:     Ingo Molnar, converted csum_partial_copy() to 2.1 exception
- *			     handling.
- *		Andi Kleen,  add zeroing on error
- *                   converted to pure assembler
- *
- *		This program is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- */
-
-#include <asm/errno.h>
-				
-/*
- * computes a partial checksum, e.g. for TCP/UDP fragments
- */
-
-/*	
-unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum)
- */
-		
-.text
-.align 4
-.globl csum_partial
-		
-#ifndef CONFIG_X86_USE_PPRO_CHECKSUM
-
-	  /*		
-	   * Experiments with Ethernet and SLIP connections show that buff
-	   * is aligned on either a 2-byte or 4-byte boundary.  We get at
-	   * least a twofold speedup on 486 and Pentium if it is 4-byte aligned.
-	   * Fortunately, it is easy to convert 2-byte alignment to 4-byte
-	   * alignment for the unrolled loop.
-	   */		
-csum_partial:
-	pushl %esi
-	pushl %ebx
-	movl 20(%esp),%eax	# Function arg: unsigned int sum
-	movl 16(%esp),%ecx	# Function arg: int len
-	movl 12(%esp),%esi	# Function arg: unsigned char *buff
-	testl $2, %esi		# Check alignment.
-	jz 2f			# Jump if alignment is ok.
-	subl $2, %ecx		# Alignment uses up two bytes.
-	jae 1f			# Jump if we had at least two bytes.
-	addl $2, %ecx		# ecx was < 2.  Deal with it.
-	jmp 4f
-1:	movw (%esi), %bx
-	addl $2, %esi
-	addw %bx, %ax
-	adcl $0, %eax
-2:
-	movl %ecx, %edx
-	shrl $5, %ecx
-	jz 2f
-	testl %esi, %esi
-1:	movl (%esi), %ebx
-	adcl %ebx, %eax
-	movl 4(%esi), %ebx
-	adcl %ebx, %eax
-	movl 8(%esi), %ebx
-	adcl %ebx, %eax
-	movl 12(%esi), %ebx
-	adcl %ebx, %eax
-	movl 16(%esi), %ebx
-	adcl %ebx, %eax
-	movl 20(%esi), %ebx
-	adcl %ebx, %eax
-	movl 24(%esi), %ebx
-	adcl %ebx, %eax
-	movl 28(%esi), %ebx
-	adcl %ebx, %eax
-	lea 32(%esi), %esi
-	dec %ecx
-	jne 1b
-	adcl $0, %eax
-2:	movl %edx, %ecx
-	andl $0x1c, %edx
-	je 4f
-	shrl $2, %edx		# This clears CF
-3:	adcl (%esi), %eax
-	lea 4(%esi), %esi
-	dec %edx
-	jne 3b
-	adcl $0, %eax
-4:	andl $3, %ecx
-	jz 7f
-	cmpl $2, %ecx
-	jb 5f
-	movw (%esi),%cx
-	leal 2(%esi),%esi
-	je 6f
-	shll $16,%ecx
-5:	movb (%esi),%cl
-6:	addl %ecx,%eax
-	adcl $0, %eax 
-7:	
-	popl %ebx
-	popl %esi
-	ret
-
-#else
-
-/* Version for PentiumII/PPro */
-
-csum_partial:
-	pushl %esi
-	pushl %ebx
-	movl 20(%esp),%eax	# Function arg: unsigned int sum
-	movl 16(%esp),%ecx	# Function arg: int len
-	movl 12(%esp),%esi	# Function arg:	const unsigned char *buf
-
-	testl $2, %esi         
-	jnz 30f                 
-10:
-	movl %ecx, %edx
-	movl %ecx, %ebx
-	andl $0x7c, %ebx
-	shrl $7, %ecx
-	addl %ebx,%esi
-	shrl $2, %ebx  
-	negl %ebx
-	lea 45f(%ebx,%ebx,2), %ebx
-	testl %esi, %esi
-	jmp *%ebx
-
-	# Handle 2-byte-aligned regions
-20:	addw (%esi), %ax
-	lea 2(%esi), %esi
-	adcl $0, %eax
-	jmp 10b
-
-30:	subl $2, %ecx          
-	ja 20b                 
-	je 32f
-	movzbl (%esi),%ebx	# csumming 1 byte, 2-aligned
-	addl %ebx, %eax
-	adcl $0, %eax
-	jmp 80f
-32:
-	addw (%esi), %ax	# csumming 2 bytes, 2-aligned
-	adcl $0, %eax
-	jmp 80f
-
-40: 
-	addl -128(%esi), %eax
-	adcl -124(%esi), %eax
-	adcl -120(%esi), %eax
-	adcl -116(%esi), %eax   
-	adcl -112(%esi), %eax   
-	adcl -108(%esi), %eax
-	adcl -104(%esi), %eax
-	adcl -100(%esi), %eax
-	adcl -96(%esi), %eax
-	adcl -92(%esi), %eax
-	adcl -88(%esi), %eax
-	adcl -84(%esi), %eax
-	adcl -80(%esi), %eax
-	adcl -76(%esi), %eax
-	adcl -72(%esi), %eax
-	adcl -68(%esi), %eax
-	adcl -64(%esi), %eax     
-	adcl -60(%esi), %eax     
-	adcl -56(%esi), %eax     
-	adcl -52(%esi), %eax   
-	adcl -48(%esi), %eax   
-	adcl -44(%esi), %eax
-	adcl -40(%esi), %eax
-	adcl -36(%esi), %eax
-	adcl -32(%esi), %eax
-	adcl -28(%esi), %eax
-	adcl -24(%esi), %eax
-	adcl -20(%esi), %eax
-	adcl -16(%esi), %eax
-	adcl -12(%esi), %eax
-	adcl -8(%esi), %eax
-	adcl -4(%esi), %eax
-45:
-	lea 128(%esi), %esi
-	adcl $0, %eax
-	dec %ecx
-	jge 40b
-	movl %edx, %ecx
-50:	andl $3, %ecx
-	jz 80f
-
-	# Handle the last 1-3 bytes without jumping
-	notl %ecx		# 1->2, 2->1, 3->0, higher bits are masked
-	movl $0xffffff,%ebx	# by the shll and shrl instructions
-	shll $3,%ecx
-	shrl %cl,%ebx
-	andl -128(%esi),%ebx	# esi is 4-aligned so should be ok
-	addl %ebx,%eax
-	adcl $0,%eax
-80: 
-	popl %ebx
-	popl %esi
-	ret
-				
-#endif
-
-/*
-unsigned int csum_partial_copy_generic (const char *src, char *dst,
-				  int len, int sum, int *src_err_ptr, int *dst_err_ptr)
- */ 
-
-/*
- * Copy from ds while checksumming, otherwise like csum_partial
- *
- * The macros SRC and DST specify the type of access for the instruction.
- * thus we can call a custom exception handler for all access types.
- *
- * FIXME: could someone double-check whether I haven't mixed up some SRC and
- *	  DST definitions? It's damn hard to trigger all cases.  I hope I got
- *	  them all but there's no guarantee.
- */
-
-#define SRC(y...)			\
-	9999: y;			\
-	.section __ex_table, "a";	\
-	.long 9999b, 6001f	;	\
-	.previous
-
-#define DST(y...)			\
-	9999: y;			\
-	.section __ex_table, "a";	\
-	.long 9999b, 6002f	;	\
-	.previous
-
-.align 4
-
-#ifndef CONFIG_X86_USE_PPRO_CHECKSUM
-
-#define ARGBASE 16		
-#define FP		12
-
-csum_partial_copy_generic_i386:
-	subl  $4,%esp	
-	pushl %edi
-	pushl %esi
-	pushl %ebx
-	movl ARGBASE+16(%esp),%eax	# sum
-	movl ARGBASE+12(%esp),%ecx	# len
-	movl ARGBASE+4(%esp),%esi	# src
-	movl ARGBASE+8(%esp),%edi	# dst
-
-	testl $2, %edi			# Check alignment. 
-	jz 2f				# Jump if alignment is ok.
-	subl $2, %ecx			# Alignment uses up two bytes.
-	jae 1f				# Jump if we had at least two bytes.
-	addl $2, %ecx			# ecx was < 2.  Deal with it.
-	jmp 4f
-SRC(1:	movw (%esi), %bx	)
-	addl $2, %esi
-DST(	movw %bx, (%edi)	)
-	addl $2, %edi
-	addw %bx, %ax	
-	adcl $0, %eax
-2:
-	movl %ecx, FP(%esp)
-	shrl $5, %ecx
-	jz 2f
-	testl %esi, %esi
-SRC(1:	movl (%esi), %ebx	)
-SRC(	movl 4(%esi), %edx	)
-	adcl %ebx, %eax
-DST(	movl %ebx, (%edi)	)
-	adcl %edx, %eax
-DST(	movl %edx, 4(%edi)	)
-
-SRC(	movl 8(%esi), %ebx	)
-SRC(	movl 12(%esi), %edx	)
-	adcl %ebx, %eax
-DST(	movl %ebx, 8(%edi)	)
-	adcl %edx, %eax
-DST(	movl %edx, 12(%edi)	)
-
-SRC(	movl 16(%esi), %ebx 	)
-SRC(	movl 20(%esi), %edx	)
-	adcl %ebx, %eax
-DST(	movl %ebx, 16(%edi)	)
-	adcl %edx, %eax
-DST(	movl %edx, 20(%edi)	)
-
-SRC(	movl 24(%esi), %ebx	)
-SRC(	movl 28(%esi), %edx	)
-	adcl %ebx, %eax
-DST(	movl %ebx, 24(%edi)	)
-	adcl %edx, %eax
-DST(	movl %edx, 28(%edi)	)
-
-	lea 32(%esi), %esi
-	lea 32(%edi), %edi
-	dec %ecx
-	jne 1b
-	adcl $0, %eax
-2:	movl FP(%esp), %edx
-	movl %edx, %ecx
-	andl $0x1c, %edx
-	je 4f
-	shrl $2, %edx			# This clears CF
-SRC(3:	movl (%esi), %ebx	)
-	adcl %ebx, %eax
-DST(	movl %ebx, (%edi)	)
-	lea 4(%esi), %esi
-	lea 4(%edi), %edi
-	dec %edx
-	jne 3b
-	adcl $0, %eax
-4:	andl $3, %ecx
-	jz 7f
-	cmpl $2, %ecx
-	jb 5f
-SRC(	movw (%esi), %cx	)
-	leal 2(%esi), %esi
-DST(	movw %cx, (%edi)	)
-	leal 2(%edi), %edi
-	je 6f
-	shll $16,%ecx
-SRC(5:	movb (%esi), %cl	)
-DST(	movb %cl, (%edi)	)
-6:	addl %ecx, %eax
-	adcl $0, %eax
-7:
-5000:
-
-# Exception handler:
-.section .fixup, "ax"							
-
-6001:
-	movl ARGBASE+20(%esp), %ebx	# src_err_ptr
-	movl $-EFAULT, (%ebx)
-
-	# zero the complete destination - computing the rest
-	# is too much work 
-	movl ARGBASE+8(%esp), %edi	# dst
-	movl ARGBASE+12(%esp), %ecx	# len
-	xorl %eax,%eax
-	rep ; stosb
-
-	jmp 5000b
-
-6002:
-	movl ARGBASE+24(%esp), %ebx	# dst_err_ptr
-	movl $-EFAULT,(%ebx)
-	jmp 5000b
-
-.previous
-
-	popl %ebx
-	popl %esi
-	popl %edi
-	popl %ecx			# equivalent to addl $4,%esp
-	ret	
-
-#else
-
-/* Version for PentiumII/PPro */
-
-#define ROUND1(x) \
-	SRC(movl x(%esi), %ebx	)	;	\
-	addl %ebx, %eax			;	\
-	DST(movl %ebx, x(%edi)	)	; 
-
-#define ROUND(x) \
-	SRC(movl x(%esi), %ebx	)	;	\
-	adcl %ebx, %eax			;	\
-	DST(movl %ebx, x(%edi)	)	;
-
-#define ARGBASE 12
-		
-csum_partial_copy_generic_i386:
-	pushl %ebx
-	pushl %edi
-	pushl %esi
-	movl ARGBASE+4(%esp),%esi	#src
-	movl ARGBASE+8(%esp),%edi	#dst	
-	movl ARGBASE+12(%esp),%ecx	#len
-	movl ARGBASE+16(%esp),%eax	#sum
-#	movl %ecx, %edx  
-	movl %ecx, %ebx  
-	movl %esi, %edx
-	shrl $6, %ecx     
-	andl $0x3c, %ebx  
-	negl %ebx
-	subl %ebx, %esi  
-	subl %ebx, %edi  
-	lea  -1(%esi),%edx
-	andl $-32,%edx
-	lea 3f(%ebx,%ebx), %ebx
-	testl %esi, %esi 
-	jmp *%ebx
-1:	addl $64,%esi
-	addl $64,%edi 
-	SRC(movb -32(%edx),%bl)	; SRC(movb (%edx),%bl)
-	ROUND1(-64) ROUND(-60) ROUND(-56) ROUND(-52)	
-	ROUND (-48) ROUND(-44) ROUND(-40) ROUND(-36)	
-	ROUND (-32) ROUND(-28) ROUND(-24) ROUND(-20)	
-	ROUND (-16) ROUND(-12) ROUND(-8)  ROUND(-4)	
-3:	adcl $0,%eax
-	addl $64, %edx
-	dec %ecx
-	jge 1b
-4:	movl ARGBASE+12(%esp),%edx	#len
-	andl $3, %edx
-	jz 7f
-	cmpl $2, %edx
-	jb 5f
-SRC(	movw (%esi), %dx         )
-	leal 2(%esi), %esi
-DST(	movw %dx, (%edi)         )
-	leal 2(%edi), %edi
-	je 6f
-	shll $16,%edx
-5:
-SRC(	movb (%esi), %dl         )
-DST(	movb %dl, (%edi)         )
-6:	addl %edx, %eax
-	adcl $0, %eax
-7:
-.section .fixup, "ax"
-6001:	movl	ARGBASE+20(%esp), %ebx	# src_err_ptr	
-	movl $-EFAULT, (%ebx)
-	# zero the complete destination (computing the rest is too much work)
-	movl ARGBASE+8(%esp),%edi	# dst
-	movl ARGBASE+12(%esp),%ecx	# len
-	xorl %eax,%eax
-	rep; stosb
-	jmp 7b
-6002:	movl ARGBASE+24(%esp), %ebx	# dst_err_ptr
-	movl $-EFAULT, (%ebx)
-	jmp  7b			
-.previous				
-
-	popl %esi
-	popl %edi
-	popl %ebx
-	ret
-				
-#undef ROUND
-#undef ROUND1		
-		
-#endif
diff --git a/arch/um/sys-i386/delay.c b/arch/um/sys-i386/delay.c
deleted file mode 100644
index f3fe1a688f7e..000000000000
--- a/arch/um/sys-i386/delay.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2011 Richard Weinberger <richrd@nod.at>
- * Mostly copied from arch/x86/lib/delay.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <asm/param.h>
-
-void __delay(unsigned long loops)
-{
-	asm volatile(
-		"test %0,%0\n"
-		"jz 3f\n"
-		"jmp 1f\n"
-
-		".align 16\n"
-		"1: jmp 2f\n"
-
-		".align 16\n"
-		"2: dec %0\n"
-		" jnz 2b\n"
-		"3: dec %0\n"
-
-		: /* we don't need output */
-		: "a" (loops)
-	);
-}
-EXPORT_SYMBOL(__delay);
-
-inline void __const_udelay(unsigned long xloops)
-{
-	int d0;
-
-	xloops *= 4;
-	asm("mull %%edx"
-		: "=d" (xloops), "=&a" (d0)
-		: "1" (xloops), "0"
-		(loops_per_jiffy * (HZ/4)));
-
-	__delay(++xloops);
-}
-EXPORT_SYMBOL(__const_udelay);
-
-void __udelay(unsigned long usecs)
-{
-	__const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */
-}
-EXPORT_SYMBOL(__udelay);
-
-void __ndelay(unsigned long nsecs)
-{
-	__const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */
-}
-EXPORT_SYMBOL(__ndelay);
diff --git a/arch/um/sys-i386/elfcore.c b/arch/um/sys-i386/elfcore.c
deleted file mode 100644
index 6bb49b687c97..000000000000
--- a/arch/um/sys-i386/elfcore.c
+++ /dev/null
@@ -1,83 +0,0 @@
-#include <linux/elf.h>
-#include <linux/coredump.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-
-#include <asm/elf.h>
-
-
-Elf32_Half elf_core_extra_phdrs(void)
-{
-	return vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0;
-}
-
-int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
-			       unsigned long limit)
-{
-	if ( vsyscall_ehdr ) {
-		const struct elfhdr *const ehdrp =
-			(struct elfhdr *) vsyscall_ehdr;
-		const struct elf_phdr *const phdrp =
-			(const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
-		int i;
-		Elf32_Off ofs = 0;
-
-		for (i = 0; i < ehdrp->e_phnum; ++i) {
-			struct elf_phdr phdr = phdrp[i];
-
-			if (phdr.p_type == PT_LOAD) {
-				ofs = phdr.p_offset = offset;
-				offset += phdr.p_filesz;
-			} else {
-				phdr.p_offset += ofs;
-			}
-			phdr.p_paddr = 0; /* match other core phdrs */
-			*size += sizeof(phdr);
-			if (*size > limit
-			    || !dump_write(file, &phdr, sizeof(phdr)))
-				return 0;
-		}
-	}
-	return 1;
-}
-
-int elf_core_write_extra_data(struct file *file, size_t *size,
-			      unsigned long limit)
-{
-	if ( vsyscall_ehdr ) {
-		const struct elfhdr *const ehdrp =
-			(struct elfhdr *) vsyscall_ehdr;
-		const struct elf_phdr *const phdrp =
-			(const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
-		int i;
-
-		for (i = 0; i < ehdrp->e_phnum; ++i) {
-			if (phdrp[i].p_type == PT_LOAD) {
-				void *addr = (void *) phdrp[i].p_vaddr;
-				size_t filesz = phdrp[i].p_filesz;
-
-				*size += filesz;
-				if (*size > limit
-				    || !dump_write(file, addr, filesz))
-					return 0;
-			}
-		}
-	}
-	return 1;
-}
-
-size_t elf_core_extra_data_size(void)
-{
-	if ( vsyscall_ehdr ) {
-		const struct elfhdr *const ehdrp =
-			(struct elfhdr *)vsyscall_ehdr;
-		const struct elf_phdr *const phdrp =
-			(const struct elf_phdr *) (vsyscall_ehdr + ehdrp->e_phoff);
-		int i;
-
-		for (i = 0; i < ehdrp->e_phnum; ++i)
-			if (phdrp[i].p_type == PT_LOAD)
-				return (size_t) phdrp[i].p_filesz;
-	}
-	return 0;
-}
diff --git a/arch/um/sys-i386/fault.c b/arch/um/sys-i386/fault.c
deleted file mode 100644
index d670f68532f4..000000000000
--- a/arch/um/sys-i386/fault.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/* 
- * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#include "sysdep/ptrace.h"
-
-/* These two are from asm-um/uaccess.h and linux/module.h, check them. */
-struct exception_table_entry
-{
-	unsigned long insn;
-	unsigned long fixup;
-};
-
-const struct exception_table_entry *search_exception_tables(unsigned long add);
-
-/* Compare this to arch/i386/mm/extable.c:fixup_exception() */
-int arch_fixup(unsigned long address, struct uml_pt_regs *regs)
-{
-	const struct exception_table_entry *fixup;
-
-	fixup = search_exception_tables(address);
-	if (fixup != 0) {
-		UPT_IP(regs) = fixup->fixup;
-		return 1;
-	}
-	return 0;
-}
diff --git a/arch/um/sys-i386/ksyms.c b/arch/um/sys-i386/ksyms.c
deleted file mode 100644
index bfbefd30db8f..000000000000
--- a/arch/um/sys-i386/ksyms.c
+++ /dev/null
@@ -1,5 +0,0 @@
-#include "linux/module.h"
-#include "asm/checksum.h"
-
-/* Networking helper routines. */
-EXPORT_SYMBOL(csum_partial);
diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c
deleted file mode 100644
index 3f2bf208d884..000000000000
--- a/arch/um/sys-i386/ldt.c
+++ /dev/null
@@ -1,502 +0,0 @@
-/*
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <asm/unistd.h>
-#include "os.h"
-#include "proc_mm.h"
-#include "skas.h"
-#include "skas_ptrace.h"
-#include "sysdep/tls.h"
-
-extern int modify_ldt(int func, void *ptr, unsigned long bytecount);
-
-static long write_ldt_entry(struct mm_id *mm_idp, int func,
-		     struct user_desc *desc, void **addr, int done)
-{
-	long res;
-
-	if (proc_mm) {
-		/*
-		 * This is a special handling for the case, that the mm to
-		 * modify isn't current->active_mm.
-		 * If this is called directly by modify_ldt,
-		 *     (current->active_mm->context.skas.u == mm_idp)
-		 * will be true. So no call to __switch_mm(mm_idp) is done.
-		 * If this is called in case of init_new_ldt or PTRACE_LDT,
-		 * mm_idp won't belong to current->active_mm, but child->mm.
-		 * So we need to switch child's mm into our userspace, then
-		 * later switch back.
-		 *
-		 * Note: I'm unsure: should interrupts be disabled here?
-		 */
-		if (!current->active_mm || current->active_mm == &init_mm ||
-		    mm_idp != &current->active_mm->context.id)
-			__switch_mm(mm_idp);
-	}
-
-	if (ptrace_ldt) {
-		struct ptrace_ldt ldt_op = (struct ptrace_ldt) {
-			.func = func,
-			.ptr = desc,
-			.bytecount = sizeof(*desc)};
-		u32 cpu;
-		int pid;
-
-		if (!proc_mm)
-			pid = mm_idp->u.pid;
-		else {
-			cpu = get_cpu();
-			pid = userspace_pid[cpu];
-		}
-
-		res = os_ptrace_ldt(pid, 0, (unsigned long) &ldt_op);
-
-		if (proc_mm)
-			put_cpu();
-	}
-	else {
-		void *stub_addr;
-		res = syscall_stub_data(mm_idp, (unsigned long *)desc,
-					(sizeof(*desc) + sizeof(long) - 1) &
-					    ~(sizeof(long) - 1),
-					addr, &stub_addr);
-		if (!res) {
-			unsigned long args[] = { func,
-						 (unsigned long)stub_addr,
-						 sizeof(*desc),
-						 0, 0, 0 };
-			res = run_syscall_stub(mm_idp, __NR_modify_ldt, args,
-					       0, addr, done);
-		}
-	}
-
-	if (proc_mm) {
-		/*
-		 * This is the second part of special handling, that makes
-		 * PTRACE_LDT possible to implement.
-		 */
-		if (current->active_mm && current->active_mm != &init_mm &&
-		    mm_idp != &current->active_mm->context.id)
-			__switch_mm(&current->active_mm->context.id);
-	}
-
-	return res;
-}
-
-static long read_ldt_from_host(void __user * ptr, unsigned long bytecount)
-{
-	int res, n;
-	struct ptrace_ldt ptrace_ldt = (struct ptrace_ldt) {
-			.func = 0,
-			.bytecount = bytecount,
-			.ptr = kmalloc(bytecount, GFP_KERNEL)};
-	u32 cpu;
-
-	if (ptrace_ldt.ptr == NULL)
-		return -ENOMEM;
-
-	/*
-	 * This is called from sys_modify_ldt only, so userspace_pid gives
-	 * us the right number
-	 */
-
-	cpu = get_cpu();
-	res = os_ptrace_ldt(userspace_pid[cpu], 0, (unsigned long) &ptrace_ldt);
-	put_cpu();
-	if (res < 0)
-		goto out;
-
-	n = copy_to_user(ptr, ptrace_ldt.ptr, res);
-	if (n != 0)
-		res = -EFAULT;
-
-  out:
-	kfree(ptrace_ldt.ptr);
-
-	return res;
-}
-
-/*
- * In skas mode, we hold our own ldt data in UML.
- * Thus, the code implementing sys_modify_ldt_skas
- * is very similar to (and mostly stolen from) sys_modify_ldt
- * for arch/i386/kernel/ldt.c
- * The routines copied and modified in part are:
- * - read_ldt
- * - read_default_ldt
- * - write_ldt
- * - sys_modify_ldt_skas
- */
-
-static int read_ldt(void __user * ptr, unsigned long bytecount)
-{
-	int i, err = 0;
-	unsigned long size;
-	uml_ldt_t * ldt = &current->mm->context.ldt;
-
-	if (!ldt->entry_count)
-		goto out;
-	if (bytecount > LDT_ENTRY_SIZE*LDT_ENTRIES)
-		bytecount = LDT_ENTRY_SIZE*LDT_ENTRIES;
-	err = bytecount;
-
-	if (ptrace_ldt)
-		return read_ldt_from_host(ptr, bytecount);
-
-	mutex_lock(&ldt->lock);
-	if (ldt->entry_count <= LDT_DIRECT_ENTRIES) {
-		size = LDT_ENTRY_SIZE*LDT_DIRECT_ENTRIES;
-		if (size > bytecount)
-			size = bytecount;
-		if (copy_to_user(ptr, ldt->u.entries, size))
-			err = -EFAULT;
-		bytecount -= size;
-		ptr += size;
-	}
-	else {
-		for (i=0; i<ldt->entry_count/LDT_ENTRIES_PER_PAGE && bytecount;
-		     i++) {
-			size = PAGE_SIZE;
-			if (size > bytecount)
-				size = bytecount;
-			if (copy_to_user(ptr, ldt->u.pages[i], size)) {
-				err = -EFAULT;
-				break;
-			}
-			bytecount -= size;
-			ptr += size;
-		}
-	}
-	mutex_unlock(&ldt->lock);
-
-	if (bytecount == 0 || err == -EFAULT)
-		goto out;
-
-	if (clear_user(ptr, bytecount))
-		err = -EFAULT;
-
-out:
-	return err;
-}
-
-static int read_default_ldt(void __user * ptr, unsigned long bytecount)
-{
-	int err;
-
-	if (bytecount > 5*LDT_ENTRY_SIZE)
-		bytecount = 5*LDT_ENTRY_SIZE;
-
-	err = bytecount;
-	/*
-	 * UML doesn't support lcall7 and lcall27.
-	 * So, we don't really have a default ldt, but emulate
-	 * an empty ldt of common host default ldt size.
-	 */
-	if (clear_user(ptr, bytecount))
-		err = -EFAULT;
-
-	return err;
-}
-
-static int write_ldt(void __user * ptr, unsigned long bytecount, int func)
-{
-	uml_ldt_t * ldt = &current->mm->context.ldt;
-	struct mm_id * mm_idp = &current->mm->context.id;
-	int i, err;
-	struct user_desc ldt_info;
-	struct ldt_entry entry0, *ldt_p;
-	void *addr = NULL;
-
-	err = -EINVAL;
-	if (bytecount != sizeof(ldt_info))
-		goto out;
-	err = -EFAULT;
-	if (copy_from_user(&ldt_info, ptr, sizeof(ldt_info)))
-		goto out;
-
-	err = -EINVAL;
-	if (ldt_info.entry_number >= LDT_ENTRIES)
-		goto out;
-	if (ldt_info.contents == 3) {
-		if (func == 1)
-			goto out;
-		if (ldt_info.seg_not_present == 0)
-			goto out;
-	}
-
-	if (!ptrace_ldt)
-		mutex_lock(&ldt->lock);
-
-	err = write_ldt_entry(mm_idp, func, &ldt_info, &addr, 1);
-	if (err)
-		goto out_unlock;
-	else if (ptrace_ldt) {
-		/* With PTRACE_LDT available, this is used as a flag only */
-		ldt->entry_count = 1;
-		goto out;
-	}
-
-	if (ldt_info.entry_number >= ldt->entry_count &&
-	    ldt_info.entry_number >= LDT_DIRECT_ENTRIES) {
-		for (i=ldt->entry_count/LDT_ENTRIES_PER_PAGE;
-		     i*LDT_ENTRIES_PER_PAGE <= ldt_info.entry_number;
-		     i++) {
-			if (i == 0)
-				memcpy(&entry0, ldt->u.entries,
-				       sizeof(entry0));
-			ldt->u.pages[i] = (struct ldt_entry *)
-				__get_free_page(GFP_KERNEL|__GFP_ZERO);
-			if (!ldt->u.pages[i]) {
-				err = -ENOMEM;
-				/* Undo the change in host */
-				memset(&ldt_info, 0, sizeof(ldt_info));
-				write_ldt_entry(mm_idp, 1, &ldt_info, &addr, 1);
-				goto out_unlock;
-			}
-			if (i == 0) {
-				memcpy(ldt->u.pages[0], &entry0,
-				       sizeof(entry0));
-				memcpy(ldt->u.pages[0]+1, ldt->u.entries+1,
-				       sizeof(entry0)*(LDT_DIRECT_ENTRIES-1));
-			}
-			ldt->entry_count = (i + 1) * LDT_ENTRIES_PER_PAGE;
-		}
-	}
-	if (ldt->entry_count <= ldt_info.entry_number)
-		ldt->entry_count = ldt_info.entry_number + 1;
-
-	if (ldt->entry_count <= LDT_DIRECT_ENTRIES)
-		ldt_p = ldt->u.entries + ldt_info.entry_number;
-	else
-		ldt_p = ldt->u.pages[ldt_info.entry_number/LDT_ENTRIES_PER_PAGE] +
-			ldt_info.entry_number%LDT_ENTRIES_PER_PAGE;
-
-	if (ldt_info.base_addr == 0 && ldt_info.limit == 0 &&
-	   (func == 1 || LDT_empty(&ldt_info))) {
-		ldt_p->a = 0;
-		ldt_p->b = 0;
-	}
-	else{
-		if (func == 1)
-			ldt_info.useable = 0;
-		ldt_p->a = LDT_entry_a(&ldt_info);
-		ldt_p->b = LDT_entry_b(&ldt_info);
-	}
-	err = 0;
-
-out_unlock:
-	mutex_unlock(&ldt->lock);
-out:
-	return err;
-}
-
-static long do_modify_ldt_skas(int func, void __user *ptr,
-			       unsigned long bytecount)
-{
-	int ret = -ENOSYS;
-
-	switch (func) {
-		case 0:
-			ret = read_ldt(ptr, bytecount);
-			break;
-		case 1:
-		case 0x11:
-			ret = write_ldt(ptr, bytecount, func);
-			break;
-		case 2:
-			ret = read_default_ldt(ptr, bytecount);
-			break;
-	}
-	return ret;
-}
-
-static DEFINE_SPINLOCK(host_ldt_lock);
-static short dummy_list[9] = {0, -1};
-static short * host_ldt_entries = NULL;
-
-static void ldt_get_host_info(void)
-{
-	long ret;
-	struct ldt_entry * ldt;
-	short *tmp;
-	int i, size, k, order;
-
-	spin_lock(&host_ldt_lock);
-
-	if (host_ldt_entries != NULL) {
-		spin_unlock(&host_ldt_lock);
-		return;
-	}
-	host_ldt_entries = dummy_list+1;
-
-	spin_unlock(&host_ldt_lock);
-
-	for (i = LDT_PAGES_MAX-1, order=0; i; i>>=1, order++)
-		;
-
-	ldt = (struct ldt_entry *)
-	      __get_free_pages(GFP_KERNEL|__GFP_ZERO, order);
-	if (ldt == NULL) {
-		printk(KERN_ERR "ldt_get_host_info: couldn't allocate buffer "
-		       "for host ldt\n");
-		return;
-	}
-
-	ret = modify_ldt(0, ldt, (1<<order)*PAGE_SIZE);
-	if (ret < 0) {
-		printk(KERN_ERR "ldt_get_host_info: couldn't read host ldt\n");
-		goto out_free;
-	}
-	if (ret == 0) {
-		/* default_ldt is active, simply write an empty entry 0 */
-		host_ldt_entries = dummy_list;
-		goto out_free;
-	}
-
-	for (i=0, size=0; i<ret/LDT_ENTRY_SIZE; i++) {
-		if (ldt[i].a != 0 || ldt[i].b != 0)
-			size++;
-	}
-
-	if (size < ARRAY_SIZE(dummy_list))
-		host_ldt_entries = dummy_list;
-	else {
-		size = (size + 1) * sizeof(dummy_list[0]);
-		tmp = kmalloc(size, GFP_KERNEL);
-		if (tmp == NULL) {
-			printk(KERN_ERR "ldt_get_host_info: couldn't allocate "
-			       "host ldt list\n");
-			goto out_free;
-		}
-		host_ldt_entries = tmp;
-	}
-
-	for (i=0, k=0; i<ret/LDT_ENTRY_SIZE; i++) {
-		if (ldt[i].a != 0 || ldt[i].b != 0)
-			host_ldt_entries[k++] = i;
-	}
-	host_ldt_entries[k] = -1;
-
-out_free:
-	free_pages((unsigned long)ldt, order);
-}
-
-long init_new_ldt(struct mm_context *new_mm, struct mm_context *from_mm)
-{
-	struct user_desc desc;
-	short * num_p;
-	int i;
-	long page, err=0;
-	void *addr = NULL;
-	struct proc_mm_op copy;
-
-
-	if (!ptrace_ldt)
-		mutex_init(&new_mm->ldt.lock);
-
-	if (!from_mm) {
-		memset(&desc, 0, sizeof(desc));
-		/*
-		 * We have to initialize a clean ldt.
-		 */
-		if (proc_mm) {
-			/*
-			 * If the new mm was created using proc_mm, host's
-			 * default-ldt currently is assigned, which normally
-			 * contains the call-gates for lcall7 and lcall27.
-			 * To remove these gates, we simply write an empty
-			 * entry as number 0 to the host.
-			 */
-			err = write_ldt_entry(&new_mm->id, 1, &desc, &addr, 1);
-		}
-		else{
-			/*
-			 * Now we try to retrieve info about the ldt, we
-			 * inherited from the host. All ldt-entries found
-			 * will be reset in the following loop
-			 */
-			ldt_get_host_info();
-			for (num_p=host_ldt_entries; *num_p != -1; num_p++) {
-				desc.entry_number = *num_p;
-				err = write_ldt_entry(&new_mm->id, 1, &desc,
-						      &addr, *(num_p + 1) == -1);
-				if (err)
-					break;
-			}
-		}
-		new_mm->ldt.entry_count = 0;
-
-		goto out;
-	}
-
-	if (proc_mm) {
-		/*
-		 * We have a valid from_mm, so we now have to copy the LDT of
-		 * from_mm to new_mm, because using proc_mm an new mm with
-		 * an empty/default LDT was created in new_mm()
-		 */
-		copy = ((struct proc_mm_op) { .op 	= MM_COPY_SEGMENTS,
-					      .u 	=
-					      { .copy_segments =
-							from_mm->id.u.mm_fd } } );
-		i = os_write_file(new_mm->id.u.mm_fd, &copy, sizeof(copy));
-		if (i != sizeof(copy))
-			printk(KERN_ERR "new_mm : /proc/mm copy_segments "
-			       "failed, err = %d\n", -i);
-	}
-
-	if (!ptrace_ldt) {
-		/*
-		 * Our local LDT is used to supply the data for
-		 * modify_ldt(READLDT), if PTRACE_LDT isn't available,
-		 * i.e., we have to use the stub for modify_ldt, which
-		 * can't handle the big read buffer of up to 64kB.
-		 */
-		mutex_lock(&from_mm->ldt.lock);
-		if (from_mm->ldt.entry_count <= LDT_DIRECT_ENTRIES)
-			memcpy(new_mm->ldt.u.entries, from_mm->ldt.u.entries,
-			       sizeof(new_mm->ldt.u.entries));
-		else {
-			i = from_mm->ldt.entry_count / LDT_ENTRIES_PER_PAGE;
-			while (i-->0) {
-				page = __get_free_page(GFP_KERNEL|__GFP_ZERO);
-				if (!page) {
-					err = -ENOMEM;
-					break;
-				}
-				new_mm->ldt.u.pages[i] =
-					(struct ldt_entry *) page;
-				memcpy(new_mm->ldt.u.pages[i],
-				       from_mm->ldt.u.pages[i], PAGE_SIZE);
-			}
-		}
-		new_mm->ldt.entry_count = from_mm->ldt.entry_count;
-		mutex_unlock(&from_mm->ldt.lock);
-	}
-
-    out:
-	return err;
-}
-
-
-void free_ldt(struct mm_context *mm)
-{
-	int i;
-
-	if (!ptrace_ldt && mm->ldt.entry_count > LDT_DIRECT_ENTRIES) {
-		i = mm->ldt.entry_count / LDT_ENTRIES_PER_PAGE;
-		while (i-- > 0)
-			free_page((long) mm->ldt.u.pages[i]);
-	}
-	mm->ldt.entry_count = 0;
-}
-
-int sys_modify_ldt(int func, void __user *ptr, unsigned long bytecount)
-{
-	return do_modify_ldt_skas(func, ptr, bytecount);
-}
diff --git a/arch/um/sys-i386/mem.c b/arch/um/sys-i386/mem.c
deleted file mode 100644
index 639900a6fde9..000000000000
--- a/arch/um/sys-i386/mem.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * Copyright (C) 2011 Richard Weinberger <richrd@nod.at>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/mm.h>
-#include <asm/page.h>
-#include <asm/mman.h>
-
-static struct vm_area_struct gate_vma;
-
-static int __init gate_vma_init(void)
-{
-	if (!FIXADDR_USER_START)
-		return 0;
-
-	gate_vma.vm_mm = NULL;
-	gate_vma.vm_start = FIXADDR_USER_START;
-	gate_vma.vm_end = FIXADDR_USER_END;
-	gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC;
-	gate_vma.vm_page_prot = __P101;
-
-	/*
-	 * Make sure the vDSO gets into every core dump.
-	 * Dumping its contents makes post-mortem fully interpretable later
-	 * without matching up the same kernel and hardware config to see
-	 * what PC values meant.
-	 */
-	gate_vma.vm_flags |= VM_ALWAYSDUMP;
-
-	return 0;
-}
-__initcall(gate_vma_init);
-
-struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
-{
-	return FIXADDR_USER_START ? &gate_vma : NULL;
-}
-
-int in_gate_area_no_mm(unsigned long addr)
-{
-	if (!FIXADDR_USER_START)
-		return 0;
-
-	if ((addr >= FIXADDR_USER_START) && (addr < FIXADDR_USER_END))
-		return 1;
-
-	return 0;
-}
-
-int in_gate_area(struct mm_struct *mm, unsigned long addr)
-{
-	struct vm_area_struct *vma = get_gate_vma(mm);
-
-	if (!vma)
-		return 0;
-
-	return (addr >= vma->vm_start) && (addr < vma->vm_end);
-}
diff --git a/arch/um/sys-i386/ptrace.c b/arch/um/sys-i386/ptrace.c
deleted file mode 100644
index a174fde2531c..000000000000
--- a/arch/um/sys-i386/ptrace.c
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
- * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#include "linux/mm.h"
-#include "linux/sched.h"
-#include "asm/uaccess.h"
-#include "skas.h"
-
-extern int arch_switch_tls(struct task_struct *to);
-
-void arch_switch_to(struct task_struct *to)
-{
-	int err = arch_switch_tls(to);
-	if (!err)
-		return;
-
-	if (err != -EINVAL)
-		printk(KERN_WARNING "arch_switch_tls failed, errno %d, "
-		       "not EINVAL\n", -err);
-	else
-		printk(KERN_WARNING "arch_switch_tls failed, errno = EINVAL\n");
-}
-
-int is_syscall(unsigned long addr)
-{
-	unsigned short instr;
-	int n;
-
-	n = copy_from_user(&instr, (void __user *) addr, sizeof(instr));
-	if (n) {
-		/* access_process_vm() grants access to vsyscall and stub,
-		 * while copy_from_user doesn't. Maybe access_process_vm is
-		 * slow, but that doesn't matter, since it will be called only
-		 * in case of singlestepping, if copy_from_user failed.
-		 */
-		n = access_process_vm(current, addr, &instr, sizeof(instr), 0);
-		if (n != sizeof(instr)) {
-			printk(KERN_ERR "is_syscall : failed to read "
-			       "instruction from 0x%lx\n", addr);
-			return 1;
-		}
-	}
-	/* int 0x80 or sysenter */
-	return (instr == 0x80cd) || (instr == 0x340f);
-}
-
-/* determines which flags the user has access to. */
-/* 1 = access 0 = no access */
-#define FLAG_MASK 0x00044dd5
-
-static const int reg_offsets[] = {
-	[EBX] = HOST_EBX,
-	[ECX] = HOST_ECX,
-	[EDX] = HOST_EDX,
-	[ESI] = HOST_ESI,
-	[EDI] = HOST_EDI,
-	[EBP] = HOST_EBP,
-	[EAX] = HOST_EAX,
-	[DS] = HOST_DS,
-	[ES] = HOST_ES,
-	[FS] = HOST_FS,
-	[GS] = HOST_GS,
-	[EIP] = HOST_IP,
-	[CS] = HOST_CS,
-	[EFL] = HOST_EFLAGS,
-	[UESP] = HOST_SP,
-	[SS] = HOST_SS,
-};
-
-int putreg(struct task_struct *child, int regno, unsigned long value)
-{
-	regno >>= 2;
-	switch (regno) {
-	case EBX:
-	case ECX:
-	case EDX:
-	case ESI:
-	case EDI:
-	case EBP:
-	case EAX:
-	case EIP:
-	case UESP:
-		break;
-	case FS:
-		if (value && (value & 3) != 3)
-			return -EIO;
-		break;
-	case GS:
-		if (value && (value & 3) != 3)
-			return -EIO;
-		break;
-	case DS:
-	case ES:
-		if (value && (value & 3) != 3)
-			return -EIO;
-		value &= 0xffff;
-		break;
-	case SS:
-	case CS:
-		if ((value & 3) != 3)
-			return -EIO;
-		value &= 0xffff;
-		break;
-	case EFL:
-		value &= FLAG_MASK;
-		child->thread.regs.regs.gp[HOST_EFLAGS] |= value;
-		return 0;
-	case ORIG_EAX:
-		child->thread.regs.regs.syscall = value;
-		return 0;
-	default :
-		panic("Bad register in putreg() : %d\n", regno);
-	}
-	child->thread.regs.regs.gp[reg_offsets[regno]] = value;
-	return 0;
-}
-
-int poke_user(struct task_struct *child, long addr, long data)
-{
-	if ((addr & 3) || addr < 0)
-		return -EIO;
-
-	if (addr < MAX_REG_OFFSET)
-		return putreg(child, addr, data);
-	else if ((addr >= offsetof(struct user, u_debugreg[0])) &&
-		 (addr <= offsetof(struct user, u_debugreg[7]))) {
-		addr -= offsetof(struct user, u_debugreg[0]);
-		addr = addr >> 2;
-		if ((addr == 4) || (addr == 5))
-			return -EIO;
-		child->thread.arch.debugregs[addr] = data;
-		return 0;
-	}
-	return -EIO;
-}
-
-unsigned long getreg(struct task_struct *child, int regno)
-{
-	unsigned long mask = ~0UL;
-
-	regno >>= 2;
-	switch (regno) {
-	case ORIG_EAX:
-		return child->thread.regs.regs.syscall;
-	case FS:
-	case GS:
-	case DS:
-	case ES:
-	case SS:
-	case CS:
-		mask = 0xffff;
-		break;
-	case EIP:
-	case UESP:
-	case EAX:
-	case EBX:
-	case ECX:
-	case EDX:
-	case ESI:
-	case EDI:
-	case EBP:
-	case EFL:
-		break;
-	default:
-		panic("Bad register in getreg() : %d\n", regno);
-	}
-	return mask & child->thread.regs.regs.gp[reg_offsets[regno]];
-}
-
-/* read the word at location addr in the USER area. */
-int peek_user(struct task_struct *child, long addr, long data)
-{
-	unsigned long tmp;
-
-	if ((addr & 3) || addr < 0)
-		return -EIO;
-
-	tmp = 0;  /* Default return condition */
-	if (addr < MAX_REG_OFFSET) {
-		tmp = getreg(child, addr);
-	}
-	else if ((addr >= offsetof(struct user, u_debugreg[0])) &&
-		 (addr <= offsetof(struct user, u_debugreg[7]))) {
-		addr -= offsetof(struct user, u_debugreg[0]);
-		addr = addr >> 2;
-		tmp = child->thread.arch.debugregs[addr];
-	}
-	return put_user(tmp, (unsigned long __user *) data);
-}
-
-static int get_fpregs(struct user_i387_struct __user *buf, struct task_struct *child)
-{
-	int err, n, cpu = ((struct thread_info *) child->stack)->cpu;
-	struct user_i387_struct fpregs;
-
-	err = save_fp_registers(userspace_pid[cpu], (unsigned long *) &fpregs);
-	if (err)
-		return err;
-
-	n = copy_to_user(buf, &fpregs, sizeof(fpregs));
-	if(n > 0)
-		return -EFAULT;
-
-	return n;
-}
-
-static int set_fpregs(struct user_i387_struct __user *buf, struct task_struct *child)
-{
-	int n, cpu = ((struct thread_info *) child->stack)->cpu;
-	struct user_i387_struct fpregs;
-
-	n = copy_from_user(&fpregs, buf, sizeof(fpregs));
-	if (n > 0)
-		return -EFAULT;
-
-	return restore_fp_registers(userspace_pid[cpu],
-				    (unsigned long *) &fpregs);
-}
-
-static int get_fpxregs(struct user_fxsr_struct __user *buf, struct task_struct *child)
-{
-	int err, n, cpu = ((struct thread_info *) child->stack)->cpu;
-	struct user_fxsr_struct fpregs;
-
-	err = save_fpx_registers(userspace_pid[cpu], (unsigned long *) &fpregs);
-	if (err)
-		return err;
-
-	n = copy_to_user(buf, &fpregs, sizeof(fpregs));
-	if(n > 0)
-		return -EFAULT;
-
-	return n;
-}
-
-static int set_fpxregs(struct user_fxsr_struct __user *buf, struct task_struct *child)
-{
-	int n, cpu = ((struct thread_info *) child->stack)->cpu;
-	struct user_fxsr_struct fpregs;
-
-	n = copy_from_user(&fpregs, buf, sizeof(fpregs));
-	if (n > 0)
-		return -EFAULT;
-
-	return restore_fpx_registers(userspace_pid[cpu],
-				     (unsigned long *) &fpregs);
-}
-
-long subarch_ptrace(struct task_struct *child, long request,
-		    unsigned long addr, unsigned long data)
-{
-	int ret = -EIO;
-	void __user *datap = (void __user *) data;
-	switch (request) {
-	case PTRACE_GETFPREGS: /* Get the child FPU state. */
-		ret = get_fpregs(datap, child);
-		break;
-	case PTRACE_SETFPREGS: /* Set the child FPU state. */
-		ret = set_fpregs(datap, child);
-		break;
-	case PTRACE_GETFPXREGS: /* Get the child FPU state. */
-		ret = get_fpxregs(datap, child);
-		break;
-	case PTRACE_SETFPXREGS: /* Set the child FPU state. */
-		ret = set_fpxregs(datap, child);
-		break;
-	default:
-		ret = -EIO;
-	}
-	return ret;
-}
diff --git a/arch/um/sys-i386/ptrace_user.c b/arch/um/sys-i386/ptrace_user.c
deleted file mode 100644
index 0b10c3e74028..000000000000
--- a/arch/um/sys-i386/ptrace_user.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#include <errno.h>
-#include <sys/ptrace.h>
-
-int ptrace_getregs(long pid, unsigned long *regs_out)
-{
-	if (ptrace(PTRACE_GETREGS, pid, 0, regs_out) < 0)
-		return -errno;
-	return 0;
-}
-
-int ptrace_setregs(long pid, unsigned long *regs)
-{
-	if (ptrace(PTRACE_SETREGS, pid, 0, regs) < 0)
-		return -errno;
-	return 0;
-}
diff --git a/arch/um/sys-i386/setjmp.S b/arch/um/sys-i386/setjmp.S
deleted file mode 100644
index b766792c9933..000000000000
--- a/arch/um/sys-i386/setjmp.S
+++ /dev/null
@@ -1,58 +0,0 @@
-#
-# arch/i386/setjmp.S
-#
-# setjmp/longjmp for the i386 architecture
-#
-
-#
-# The jmp_buf is assumed to contain the following, in order:
-#	%ebx
-#	%esp
-#	%ebp
-#	%esi
-#	%edi
-#	<return address>
-#
-
-	.text
-	.align 4
-	.globl setjmp
-	.type setjmp, @function
-setjmp:
-#ifdef _REGPARM
-	movl %eax,%edx
-#else
-	movl 4(%esp),%edx
-#endif
-	popl %ecx			# Return address, and adjust the stack
-	xorl %eax,%eax			# Return value
-	movl %ebx,(%edx)
-	movl %esp,4(%edx)		# Post-return %esp!
-	pushl %ecx			# Make the call/return stack happy
-	movl %ebp,8(%edx)
-	movl %esi,12(%edx)
-	movl %edi,16(%edx)
-	movl %ecx,20(%edx)		# Return address
-	ret
-
-	.size setjmp,.-setjmp
-
-	.text
-	.align 4
-	.globl longjmp
-	.type longjmp, @function
-longjmp:
-#ifdef _REGPARM
-	xchgl %eax,%edx
-#else
-	movl 4(%esp),%edx		# jmp_ptr address
-	movl 8(%esp),%eax		# Return value
-#endif
-	movl (%edx),%ebx
-	movl 4(%edx),%esp
-	movl 8(%edx),%ebp
-	movl 12(%edx),%esi
-	movl 16(%edx),%edi
-	jmp *20(%edx)
-
-	.size longjmp,.-longjmp
diff --git a/arch/um/sys-i386/signal.c b/arch/um/sys-i386/signal.c
deleted file mode 100644
index bcbfb0d64813..000000000000
--- a/arch/um/sys-i386/signal.c
+++ /dev/null
@@ -1,498 +0,0 @@
-/*
- * Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#include <linux/ptrace.h>
-#include <asm/unistd.h>
-#include <asm/uaccess.h>
-#include <asm/ucontext.h>
-#include "frame_kern.h"
-#include "skas.h"
-
-/*
- * FPU tag word conversions.
- */
-
-static inline unsigned short twd_i387_to_fxsr(unsigned short twd)
-{
-	unsigned int tmp; /* to avoid 16 bit prefixes in the code */
-
-	/* Transform each pair of bits into 01 (valid) or 00 (empty) */
-	tmp = ~twd;
-	tmp = (tmp | (tmp>>1)) & 0x5555; /* 0V0V0V0V0V0V0V0V */
-	/* and move the valid bits to the lower byte. */
-	tmp = (tmp | (tmp >> 1)) & 0x3333; /* 00VV00VV00VV00VV */
-	tmp = (tmp | (tmp >> 2)) & 0x0f0f; /* 0000VVVV0000VVVV */
-	tmp = (tmp | (tmp >> 4)) & 0x00ff; /* 00000000VVVVVVVV */
-	return tmp;
-}
-
-static inline unsigned long twd_fxsr_to_i387(struct user_fxsr_struct *fxsave)
-{
-	struct _fpxreg *st = NULL;
-	unsigned long twd = (unsigned long) fxsave->twd;
-	unsigned long tag;
-	unsigned long ret = 0xffff0000;
-	int i;
-
-#define FPREG_ADDR(f, n)	((char *)&(f)->st_space + (n) * 16)
-
-	for (i = 0; i < 8; i++) {
-		if (twd & 0x1) {
-			st = (struct _fpxreg *) FPREG_ADDR(fxsave, i);
-
-			switch (st->exponent & 0x7fff) {
-			case 0x7fff:
-				tag = 2;		/* Special */
-				break;
-			case 0x0000:
-				if ( !st->significand[0] &&
-				     !st->significand[1] &&
-				     !st->significand[2] &&
-				     !st->significand[3] ) {
-					tag = 1;	/* Zero */
-				} else {
-					tag = 2;	/* Special */
-				}
-				break;
-			default:
-				if (st->significand[3] & 0x8000) {
-					tag = 0;	/* Valid */
-				} else {
-					tag = 2;	/* Special */
-				}
-				break;
-			}
-		} else {
-			tag = 3;			/* Empty */
-		}
-		ret |= (tag << (2 * i));
-		twd = twd >> 1;
-	}
-	return ret;
-}
-
-static int convert_fxsr_to_user(struct _fpstate __user *buf,
-				struct user_fxsr_struct *fxsave)
-{
-	unsigned long env[7];
-	struct _fpreg __user *to;
-	struct _fpxreg *from;
-	int i;
-
-	env[0] = (unsigned long)fxsave->cwd | 0xffff0000ul;
-	env[1] = (unsigned long)fxsave->swd | 0xffff0000ul;
-	env[2] = twd_fxsr_to_i387(fxsave);
-	env[3] = fxsave->fip;
-	env[4] = fxsave->fcs | ((unsigned long)fxsave->fop << 16);
-	env[5] = fxsave->foo;
-	env[6] = fxsave->fos;
-
-	if (__copy_to_user(buf, env, 7 * sizeof(unsigned long)))
-		return 1;
-
-	to = &buf->_st[0];
-	from = (struct _fpxreg *) &fxsave->st_space[0];
-	for (i = 0; i < 8; i++, to++, from++) {
-		unsigned long __user *t = (unsigned long __user *)to;
-		unsigned long *f = (unsigned long *)from;
-
-		if (__put_user(*f, t) ||
-				__put_user(*(f + 1), t + 1) ||
-				__put_user(from->exponent, &to->exponent))
-			return 1;
-	}
-	return 0;
-}
-
-static int convert_fxsr_from_user(struct user_fxsr_struct *fxsave,
-				  struct _fpstate __user *buf)
-{
-	unsigned long env[7];
-	struct _fpxreg *to;
-	struct _fpreg __user *from;
-	int i;
-
-	if (copy_from_user( env, buf, 7 * sizeof(long)))
-		return 1;
-
-	fxsave->cwd = (unsigned short)(env[0] & 0xffff);
-	fxsave->swd = (unsigned short)(env[1] & 0xffff);
-	fxsave->twd = twd_i387_to_fxsr((unsigned short)(env[2] & 0xffff));
-	fxsave->fip = env[3];
-	fxsave->fop = (unsigned short)((env[4] & 0xffff0000ul) >> 16);
-	fxsave->fcs = (env[4] & 0xffff);
-	fxsave->foo = env[5];
-	fxsave->fos = env[6];
-
-	to = (struct _fpxreg *) &fxsave->st_space[0];
-	from = &buf->_st[0];
-	for (i = 0; i < 8; i++, to++, from++) {
-		unsigned long *t = (unsigned long *)to;
-		unsigned long __user *f = (unsigned long __user *)from;
-
-		if (__get_user(*t, f) ||
-		    __get_user(*(t + 1), f + 1) ||
-		    __get_user(to->exponent, &from->exponent))
-			return 1;
-	}
-	return 0;
-}
-
-extern int have_fpx_regs;
-
-static int copy_sc_from_user(struct pt_regs *regs,
-			     struct sigcontext __user *from)
-{
-	struct sigcontext sc;
-	int err, pid;
-
-	err = copy_from_user(&sc, from, sizeof(sc));
-	if (err)
-		return err;
-
-	pid = userspace_pid[current_thread_info()->cpu];
-
-#define GETREG(regno, regname) regs->regs.gp[HOST_##regno] = sc.regname
-
-	GETREG(GS, gs);
-	GETREG(FS, fs);
-	GETREG(ES, es);
-	GETREG(DS, ds);
-	GETREG(EDI, di);
-	GETREG(ESI, si);
-	GETREG(EBP, bp);
-	GETREG(SP, sp);
-	GETREG(EBX, bx);
-	GETREG(EDX, dx);
-	GETREG(ECX, cx);
-	GETREG(EAX, ax);
-	GETREG(IP, ip);
-	GETREG(CS, cs);
-	GETREG(EFLAGS, flags);
-	GETREG(SS, ss);
-
-#undef GETREG
-	if (have_fpx_regs) {
-		struct user_fxsr_struct fpx;
-
-		err = copy_from_user(&fpx,
-			&((struct _fpstate __user *)sc.fpstate)->_fxsr_env[0],
-				     sizeof(struct user_fxsr_struct));
-		if (err)
-			return 1;
-
-		err = convert_fxsr_from_user(&fpx, sc.fpstate);
-		if (err)
-			return 1;
-
-		err = restore_fpx_registers(pid, (unsigned long *) &fpx);
-		if (err < 0) {
-			printk(KERN_ERR "copy_sc_from_user - "
-			       "restore_fpx_registers failed, errno = %d\n",
-			       -err);
-			return 1;
-		}
-	} else {
-		struct user_i387_struct fp;
-
-		err = copy_from_user(&fp, sc.fpstate,
-				     sizeof(struct user_i387_struct));
-		if (err)
-			return 1;
-
-		err = restore_fp_registers(pid, (unsigned long *) &fp);
-		if (err < 0) {
-			printk(KERN_ERR "copy_sc_from_user - "
-			       "restore_fp_registers failed, errno = %d\n",
-			       -err);
-			return 1;
-		}
-	}
-
-	return 0;
-}
-
-static int copy_sc_to_user(struct sigcontext __user *to,
-			   struct _fpstate __user *to_fp, struct pt_regs *regs,
-			   unsigned long sp)
-{
-	struct sigcontext sc;
-	struct faultinfo * fi = &current->thread.arch.faultinfo;
-	int err, pid;
-	memset(&sc, 0, sizeof(struct sigcontext));
-
-	sc.gs = REGS_GS(regs->regs.gp);
-	sc.fs = REGS_FS(regs->regs.gp);
-	sc.es = REGS_ES(regs->regs.gp);
-	sc.ds = REGS_DS(regs->regs.gp);
-	sc.di = REGS_EDI(regs->regs.gp);
-	sc.si = REGS_ESI(regs->regs.gp);
-	sc.bp = REGS_EBP(regs->regs.gp);
-	sc.sp = sp;
-	sc.bx = REGS_EBX(regs->regs.gp);
-	sc.dx = REGS_EDX(regs->regs.gp);
-	sc.cx = REGS_ECX(regs->regs.gp);
-	sc.ax = REGS_EAX(regs->regs.gp);
-	sc.ip = REGS_IP(regs->regs.gp);
-	sc.cs = REGS_CS(regs->regs.gp);
-	sc.flags = REGS_EFLAGS(regs->regs.gp);
-	sc.sp_at_signal = regs->regs.gp[UESP];
-	sc.ss = regs->regs.gp[SS];
-	sc.cr2 = fi->cr2;
-	sc.err = fi->error_code;
-	sc.trapno = fi->trap_no;
-
-	to_fp = (to_fp ? to_fp : (struct _fpstate __user *) (to + 1));
-	sc.fpstate = to_fp;
-
-	pid = userspace_pid[current_thread_info()->cpu];
-	if (have_fpx_regs) {
-		struct user_fxsr_struct fpx;
-
-		err = save_fpx_registers(pid, (unsigned long *) &fpx);
-		if (err < 0){
-			printk(KERN_ERR "copy_sc_to_user - save_fpx_registers "
-			       "failed, errno = %d\n", err);
-			return 1;
-		}
-
-		err = convert_fxsr_to_user(to_fp, &fpx);
-		if (err)
-			return 1;
-
-		err |= __put_user(fpx.swd, &to_fp->status);
-		err |= __put_user(X86_FXSR_MAGIC, &to_fp->magic);
-		if (err)
-			return 1;
-
-		if (copy_to_user(&to_fp->_fxsr_env[0], &fpx,
-				 sizeof(struct user_fxsr_struct)))
-			return 1;
-	}
-	else {
-		struct user_i387_struct fp;
-
-		err = save_fp_registers(pid, (unsigned long *) &fp);
-		if (copy_to_user(to_fp, &fp, sizeof(struct user_i387_struct)))
-			return 1;
-	}
-
-	return copy_to_user(to, &sc, sizeof(sc));
-}
-
-static int copy_ucontext_to_user(struct ucontext __user *uc,
-				 struct _fpstate __user *fp, sigset_t *set,
-				 unsigned long sp)
-{
-	int err = 0;
-
-	err |= put_user(current->sas_ss_sp, &uc->uc_stack.ss_sp);
-	err |= put_user(sas_ss_flags(sp), &uc->uc_stack.ss_flags);
-	err |= put_user(current->sas_ss_size, &uc->uc_stack.ss_size);
-	err |= copy_sc_to_user(&uc->uc_mcontext, fp, &current->thread.regs, sp);
-	err |= copy_to_user(&uc->uc_sigmask, set, sizeof(*set));
-	return err;
-}
-
-struct sigframe
-{
-	char __user *pretcode;
-	int sig;
-	struct sigcontext sc;
-	struct _fpstate fpstate;
-	unsigned long extramask[_NSIG_WORDS-1];
-	char retcode[8];
-};
-
-struct rt_sigframe
-{
-	char __user *pretcode;
-	int sig;
-	struct siginfo __user *pinfo;
-	void __user *puc;
-	struct siginfo info;
-	struct ucontext uc;
-	struct _fpstate fpstate;
-	char retcode[8];
-};
-
-int setup_signal_stack_sc(unsigned long stack_top, int sig,
-			  struct k_sigaction *ka, struct pt_regs *regs,
-			  sigset_t *mask)
-{
-	struct sigframe __user *frame;
-	void __user *restorer;
-	unsigned long save_sp = PT_REGS_SP(regs);
-	int err = 0;
-
-	/* This is the same calculation as i386 - ((sp + 4) & 15) == 0 */
-	stack_top = ((stack_top + 4) & -16UL) - 4;
-	frame = (struct sigframe __user *) stack_top - 1;
-	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-		return 1;
-
-	restorer = frame->retcode;
-	if (ka->sa.sa_flags & SA_RESTORER)
-		restorer = ka->sa.sa_restorer;
-
-	/* Update SP now because the page fault handler refuses to extend
-	 * the stack if the faulting address is too far below the current
-	 * SP, which frame now certainly is.  If there's an error, the original
-	 * value is restored on the way out.
-	 * When writing the sigcontext to the stack, we have to write the
-	 * original value, so that's passed to copy_sc_to_user, which does
-	 * the right thing with it.
-	 */
-	PT_REGS_SP(regs) = (unsigned long) frame;
-
-	err |= __put_user(restorer, &frame->pretcode);
-	err |= __put_user(sig, &frame->sig);
-	err |= copy_sc_to_user(&frame->sc, NULL, regs, save_sp);
-	err |= __put_user(mask->sig[0], &frame->sc.oldmask);
-	if (_NSIG_WORDS > 1)
-		err |= __copy_to_user(&frame->extramask, &mask->sig[1],
-				      sizeof(frame->extramask));
-
-	/*
-	 * This is popl %eax ; movl $,%eax ; int $0x80
-	 *
-	 * WE DO NOT USE IT ANY MORE! It's only left here for historical
-	 * reasons and because gdb uses it as a signature to notice
-	 * signal handler stack frames.
-	 */
-	err |= __put_user(0xb858, (short __user *)(frame->retcode+0));
-	err |= __put_user(__NR_sigreturn, (int __user *)(frame->retcode+2));
-	err |= __put_user(0x80cd, (short __user *)(frame->retcode+6));
-
-	if (err)
-		goto err;
-
-	PT_REGS_SP(regs) = (unsigned long) frame;
-	PT_REGS_IP(regs) = (unsigned long) ka->sa.sa_handler;
-	PT_REGS_EAX(regs) = (unsigned long) sig;
-	PT_REGS_EDX(regs) = (unsigned long) 0;
-	PT_REGS_ECX(regs) = (unsigned long) 0;
-
-	if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED))
-		ptrace_notify(SIGTRAP);
-	return 0;
-
-err:
-	PT_REGS_SP(regs) = save_sp;
-	return err;
-}
-
-int setup_signal_stack_si(unsigned long stack_top, int sig,
-			  struct k_sigaction *ka, struct pt_regs *regs,
-			  siginfo_t *info, sigset_t *mask)
-{
-	struct rt_sigframe __user *frame;
-	void __user *restorer;
-	unsigned long save_sp = PT_REGS_SP(regs);
-	int err = 0;
-
-	stack_top &= -8UL;
-	frame = (struct rt_sigframe __user *) stack_top - 1;
-	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-		return 1;
-
-	restorer = frame->retcode;
-	if (ka->sa.sa_flags & SA_RESTORER)
-		restorer = ka->sa.sa_restorer;
-
-	/* See comment above about why this is here */
-	PT_REGS_SP(regs) = (unsigned long) frame;
-
-	err |= __put_user(restorer, &frame->pretcode);
-	err |= __put_user(sig, &frame->sig);
-	err |= __put_user(&frame->info, &frame->pinfo);
-	err |= __put_user(&frame->uc, &frame->puc);
-	err |= copy_siginfo_to_user(&frame->info, info);
-	err |= copy_ucontext_to_user(&frame->uc, &frame->fpstate, mask,
-				     save_sp);
-
-	/*
-	 * This is movl $,%eax ; int $0x80
-	 *
-	 * WE DO NOT USE IT ANY MORE! It's only left here for historical
-	 * reasons and because gdb uses it as a signature to notice
-	 * signal handler stack frames.
-	 */
-	err |= __put_user(0xb8, (char __user *)(frame->retcode+0));
-	err |= __put_user(__NR_rt_sigreturn, (int __user *)(frame->retcode+1));
-	err |= __put_user(0x80cd, (short __user *)(frame->retcode+5));
-
-	if (err)
-		goto err;
-
-	PT_REGS_IP(regs) = (unsigned long) ka->sa.sa_handler;
-	PT_REGS_EAX(regs) = (unsigned long) sig;
-	PT_REGS_EDX(regs) = (unsigned long) &frame->info;
-	PT_REGS_ECX(regs) = (unsigned long) &frame->uc;
-
-	if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED))
-		ptrace_notify(SIGTRAP);
-	return 0;
-
-err:
-	PT_REGS_SP(regs) = save_sp;
-	return err;
-}
-
-long sys_sigreturn(struct pt_regs regs)
-{
-	unsigned long sp = PT_REGS_SP(&current->thread.regs);
-	struct sigframe __user *frame = (struct sigframe __user *)(sp - 8);
-	sigset_t set;
-	struct sigcontext __user *sc = &frame->sc;
-	unsigned long __user *oldmask = &sc->oldmask;
-	unsigned long __user *extramask = frame->extramask;
-	int sig_size = (_NSIG_WORDS - 1) * sizeof(unsigned long);
-
-	if (copy_from_user(&set.sig[0], oldmask, sizeof(set.sig[0])) ||
-	    copy_from_user(&set.sig[1], extramask, sig_size))
-		goto segfault;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-	set_current_blocked(&set);
-
-	if (copy_sc_from_user(&current->thread.regs, sc))
-		goto segfault;
-
-	/* Avoid ERESTART handling */
-	PT_REGS_SYSCALL_NR(&current->thread.regs) = -1;
-	return PT_REGS_SYSCALL_RET(&current->thread.regs);
-
- segfault:
-	force_sig(SIGSEGV, current);
-	return 0;
-}
-
-long sys_rt_sigreturn(struct pt_regs regs)
-{
-	unsigned long sp = PT_REGS_SP(&current->thread.regs);
-	struct rt_sigframe __user *frame =
-		(struct rt_sigframe __user *) (sp - 4);
-	sigset_t set;
-	struct ucontext __user *uc = &frame->uc;
-	int sig_size = _NSIG_WORDS * sizeof(unsigned long);
-
-	if (copy_from_user(&set, &uc->uc_sigmask, sig_size))
-		goto segfault;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-	set_current_blocked(&set);
-
-	if (copy_sc_from_user(&current->thread.regs, &uc->uc_mcontext))
-		goto segfault;
-
-	/* Avoid ERESTART handling */
-	PT_REGS_SYSCALL_NR(&current->thread.regs) = -1;
-	return PT_REGS_SYSCALL_RET(&current->thread.regs);
-
- segfault:
-	force_sig(SIGSEGV, current);
-	return 0;
-}
diff --git a/arch/um/sys-i386/stub.S b/arch/um/sys-i386/stub.S
deleted file mode 100644
index 54a36ec20cb7..000000000000
--- a/arch/um/sys-i386/stub.S
+++ /dev/null
@@ -1,51 +0,0 @@
-#include "as-layout.h"
-
-	.globl syscall_stub
-.section .__syscall_stub, "ax"
-
-	.globl batch_syscall_stub
-batch_syscall_stub:
-	/* load pointer to first operation */
-	mov	$(STUB_DATA+8), %esp
-
-again:
-	/* load length of additional data */
-	mov	0x0(%esp), %eax
-
-	/* if(length == 0) : end of list */
-	/* write possible 0 to header */
-	mov	%eax, STUB_DATA+4
-	cmpl	$0, %eax
-	jz	done
-
-	/* save current pointer */
-	mov	%esp, STUB_DATA+4
-
-	/* skip additional data */
-	add	%eax, %esp
-
-	/* load syscall-# */
-	pop	%eax
-
-	/* load syscall params */
-	pop	%ebx
-	pop	%ecx
-	pop	%edx
-	pop	%esi
- 	pop	%edi
-	pop	%ebp
-
-	/* execute syscall */
-	int	$0x80
-
-	/* check return value */
-	pop	%ebx
-	cmp	%ebx, %eax
-	je	again
-
-done:
-	/* save return value */
-	mov	%eax, STUB_DATA
-
-	/* stop */
-	int3
diff --git a/arch/um/sys-i386/stub_segv.c b/arch/um/sys-i386/stub_segv.c
deleted file mode 100644
index 28ccf737a79f..000000000000
--- a/arch/um/sys-i386/stub_segv.c
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
- */
-
-#include "sysdep/stub.h"
-#include "sysdep/sigcontext.h"
-
-void __attribute__ ((__section__ (".__syscall_stub")))
-stub_segv_handler(int sig)
-{
-	struct sigcontext *sc = (struct sigcontext *) (&sig + 1);
-
-	GET_FAULTINFO_FROM_SC(*((struct faultinfo *) STUB_DATA), sc);
-
-	trap_myself();
-}
diff --git a/arch/um/sys-i386/sys_call_table.S b/arch/um/sys-i386/sys_call_table.S
deleted file mode 100644
index de274071455d..000000000000
--- a/arch/um/sys-i386/sys_call_table.S
+++ /dev/null
@@ -1,28 +0,0 @@
-#include <linux/linkage.h>
-/* Steal i386 syscall table for our purposes, but with some slight changes.*/
-
-#define sys_iopl sys_ni_syscall
-#define sys_ioperm sys_ni_syscall
-
-#define sys_vm86old sys_ni_syscall
-#define sys_vm86 sys_ni_syscall
-
-#define old_mmap sys_old_mmap
-
-#define ptregs_fork sys_fork
-#define ptregs_execve sys_execve
-#define ptregs_iopl sys_iopl
-#define ptregs_vm86old sys_vm86old
-#define ptregs_sigreturn sys_sigreturn
-#define ptregs_clone sys_clone
-#define ptregs_vm86 sys_vm86
-#define ptregs_rt_sigreturn sys_rt_sigreturn
-#define ptregs_sigaltstack sys_sigaltstack
-#define ptregs_vfork sys_vfork
-
-.section .rodata,"a"
-
-#include "../../x86/kernel/syscall_table_32.S"
-
-ENTRY(syscall_table_size)
-.long .-sys_call_table
diff --git a/arch/um/sys-i386/syscalls.c b/arch/um/sys-i386/syscalls.c
deleted file mode 100644
index 70ca357393b8..000000000000
--- a/arch/um/sys-i386/syscalls.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/* 
- * Copyright (C) 2000 - 2003 Jeff Dike (jdike@addtoit.com)
- * Licensed under the GPL
- */
-
-#include "linux/sched.h"
-#include "linux/shm.h"
-#include "linux/ipc.h"
-#include "linux/syscalls.h"
-#include "asm/mman.h"
-#include "asm/uaccess.h"
-#include "asm/unistd.h"
-
-/*
- * The prototype on i386 is:
- *
- *     int clone(int flags, void * child_stack, int * parent_tidptr, struct user_desc * newtls, int * child_tidptr)
- *
- * and the "newtls" arg. on i386 is read by copy_thread directly from the
- * register saved on the stack.
- */
-long sys_clone(unsigned long clone_flags, unsigned long newsp,
-	       int __user *parent_tid, void *newtls, int __user *child_tid)
-{
-	long ret;
-
-	if (!newsp)
-		newsp = UPT_SP(&current->thread.regs.regs);
-
-	current->thread.forking = 1;
-	ret = do_fork(clone_flags, newsp, &current->thread.regs, 0, parent_tid,
-		      child_tid);
-	current->thread.forking = 0;
-	return ret;
-}
-
-long sys_sigaction(int sig, const struct old_sigaction __user *act,
-			 struct old_sigaction __user *oact)
-{
-	struct k_sigaction new_ka, old_ka;
-	int ret;
-
-	if (act) {
-		old_sigset_t mask;
-		if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
-		    __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
-		    __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
-			return -EFAULT;
-		__get_user(new_ka.sa.sa_flags, &act->sa_flags);
-		__get_user(mask, &act->sa_mask);
-		siginitset(&new_ka.sa.sa_mask, mask);
-	}
-
-	ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
-	if (!ret && oact) {
-		if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
-		    __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
-		    __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
-			return -EFAULT;
-		__put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-		__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
-	}
-
-	return ret;
-}
diff --git a/arch/um/sys-i386/sysrq.c b/arch/um/sys-i386/sysrq.c
deleted file mode 100644
index 171b3e9dc867..000000000000
--- a/arch/um/sys-i386/sysrq.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Copyright (C) 2001 - 2003 Jeff Dike (jdike@addtoit.com)
- * Licensed under the GPL
- */
-
-#include "linux/kernel.h"
-#include "linux/smp.h"
-#include "linux/sched.h"
-#include "linux/kallsyms.h"
-#include "asm/ptrace.h"
-#include "sysrq.h"
-
-/* This is declared by <linux/sched.h> */
-void show_regs(struct pt_regs *regs)
-{
-        printk("\n");
-        printk("EIP: %04lx:[<%08lx>] CPU: %d %s", 
-	       0xffff & PT_REGS_CS(regs), PT_REGS_IP(regs),
-	       smp_processor_id(), print_tainted());
-        if (PT_REGS_CS(regs) & 3)
-                printk(" ESP: %04lx:%08lx", 0xffff & PT_REGS_SS(regs),
-		       PT_REGS_SP(regs));
-        printk(" EFLAGS: %08lx\n    %s\n", PT_REGS_EFLAGS(regs),
-	       print_tainted());
-        printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
-                PT_REGS_EAX(regs), PT_REGS_EBX(regs), 
-	       PT_REGS_ECX(regs), 
-	       PT_REGS_EDX(regs));
-        printk("ESI: %08lx EDI: %08lx EBP: %08lx",
-	       PT_REGS_ESI(regs), PT_REGS_EDI(regs), 
-	       PT_REGS_EBP(regs));
-        printk(" DS: %04lx ES: %04lx\n",
-	       0xffff & PT_REGS_DS(regs), 
-	       0xffff & PT_REGS_ES(regs));
-
-        show_trace(NULL, (unsigned long *) &regs);
-}
-
-/* Copied from i386. */
-static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
-{
-	return	p > (void *)tinfo &&
-		p < (void *)tinfo + THREAD_SIZE - 3;
-}
-
-/* Adapted from i386 (we also print the address we read from). */
-static inline unsigned long print_context_stack(struct thread_info *tinfo,
-				unsigned long *stack, unsigned long ebp)
-{
-	unsigned long addr;
-
-#ifdef CONFIG_FRAME_POINTER
-	while (valid_stack_ptr(tinfo, (void *)ebp)) {
-		addr = *(unsigned long *)(ebp + 4);
-		printk("%08lx:  [<%08lx>]", ebp + 4, addr);
-		print_symbol(" %s", addr);
-		printk("\n");
-		ebp = *(unsigned long *)ebp;
-	}
-#else
-	while (valid_stack_ptr(tinfo, stack)) {
-		addr = *stack;
-		if (__kernel_text_address(addr)) {
-			printk("%08lx:  [<%08lx>]", (unsigned long) stack, addr);
-			print_symbol(" %s", addr);
-			printk("\n");
-		}
-		stack++;
-	}
-#endif
-	return ebp;
-}
-
-void show_trace(struct task_struct* task, unsigned long * stack)
-{
-	unsigned long ebp;
-	struct thread_info *context;
-
-	/* Turn this into BUG_ON if possible. */
-	if (!stack) {
-		stack = (unsigned long*) &stack;
-		printk("show_trace: got NULL stack, implicit assumption task == current");
-		WARN_ON(1);
-	}
-
-	if (!task)
-		task = current;
-
-	if (task != current) {
-		ebp = (unsigned long) KSTK_EBP(task);
-	} else {
-		asm ("movl %%ebp, %0" : "=r" (ebp) : );
-	}
-
-	context = (struct thread_info *)
-		((unsigned long)stack & (~(THREAD_SIZE - 1)));
-	print_context_stack(context, stack, ebp);
-
-	printk("\n");
-}
-
diff --git a/arch/um/sys-i386/tls.c b/arch/um/sys-i386/tls.c
deleted file mode 100644
index c6c7131e563b..000000000000
--- a/arch/um/sys-i386/tls.c
+++ /dev/null
@@ -1,396 +0,0 @@
-/*
- * Copyright (C) 2005 Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
- * Licensed under the GPL
- */
-
-#include "linux/percpu.h"
-#include "linux/sched.h"
-#include "asm/uaccess.h"
-#include "os.h"
-#include "skas.h"
-#include "sysdep/tls.h"
-
-/*
- * If needed we can detect when it's uninitialized.
- *
- * These are initialized in an initcall and unchanged thereafter.
- */
-static int host_supports_tls = -1;
-int host_gdt_entry_tls_min;
-
-int do_set_thread_area(struct user_desc *info)
-{
-	int ret;
-	u32 cpu;
-
-	cpu = get_cpu();
-	ret = os_set_thread_area(info, userspace_pid[cpu]);
-	put_cpu();
-
-	if (ret)
-		printk(KERN_ERR "PTRACE_SET_THREAD_AREA failed, err = %d, "
-		       "index = %d\n", ret, info->entry_number);
-
-	return ret;
-}
-
-int do_get_thread_area(struct user_desc *info)
-{
-	int ret;
-	u32 cpu;
-
-	cpu = get_cpu();
-	ret = os_get_thread_area(info, userspace_pid[cpu]);
-	put_cpu();
-
-	if (ret)
-		printk(KERN_ERR "PTRACE_GET_THREAD_AREA failed, err = %d, "
-		       "index = %d\n", ret, info->entry_number);
-
-	return ret;
-}
-
-/*
- * sys_get_thread_area: get a yet unused TLS descriptor index.
- * XXX: Consider leaving one free slot for glibc usage at first place. This must
- * be done here (and by changing GDT_ENTRY_TLS_* macros) and nowhere else.
- *
- * Also, this must be tested when compiling in SKAS mode with dynamic linking
- * and running against NPTL.
- */
-static int get_free_idx(struct task_struct* task)
-{
-	struct thread_struct *t = &task->thread;
-	int idx;
-
-	if (!t->arch.tls_array)
-		return GDT_ENTRY_TLS_MIN;
-
-	for (idx = 0; idx < GDT_ENTRY_TLS_ENTRIES; idx++)
-		if (!t->arch.tls_array[idx].present)
-			return idx + GDT_ENTRY_TLS_MIN;
-	return -ESRCH;
-}
-
-static inline void clear_user_desc(struct user_desc* info)
-{
-	/* Postcondition: LDT_empty(info) returns true. */
-	memset(info, 0, sizeof(*info));
-
-	/*
-	 * Check the LDT_empty or the i386 sys_get_thread_area code - we obtain
-	 * indeed an empty user_desc.
-	 */
-	info->read_exec_only = 1;
-	info->seg_not_present = 1;
-}
-
-#define O_FORCE 1
-
-static int load_TLS(int flags, struct task_struct *to)
-{
-	int ret = 0;
-	int idx;
-
-	for (idx = GDT_ENTRY_TLS_MIN; idx < GDT_ENTRY_TLS_MAX; idx++) {
-		struct uml_tls_struct* curr =
-			&to->thread.arch.tls_array[idx - GDT_ENTRY_TLS_MIN];
-
-		/*
-		 * Actually, now if it wasn't flushed it gets cleared and
-		 * flushed to the host, which will clear it.
-		 */
-		if (!curr->present) {
-			if (!curr->flushed) {
-				clear_user_desc(&curr->tls);
-				curr->tls.entry_number = idx;
-			} else {
-				WARN_ON(!LDT_empty(&curr->tls));
-				continue;
-			}
-		}
-
-		if (!(flags & O_FORCE) && curr->flushed)
-			continue;
-
-		ret = do_set_thread_area(&curr->tls);
-		if (ret)
-			goto out;
-
-		curr->flushed = 1;
-	}
-out:
-	return ret;
-}
-
-/*
- * Verify if we need to do a flush for the new process, i.e. if there are any
- * present desc's, only if they haven't been flushed.
- */
-static inline int needs_TLS_update(struct task_struct *task)
-{
-	int i;
-	int ret = 0;
-
-	for (i = GDT_ENTRY_TLS_MIN; i < GDT_ENTRY_TLS_MAX; i++) {
-		struct uml_tls_struct* curr =
-			&task->thread.arch.tls_array[i - GDT_ENTRY_TLS_MIN];
-
-		/*
-		 * Can't test curr->present, we may need to clear a descriptor
-		 * which had a value.
-		 */
-		if (curr->flushed)
-			continue;
-		ret = 1;
-		break;
-	}
-	return ret;
-}
-
-/*
- * On a newly forked process, the TLS descriptors haven't yet been flushed. So
- * we mark them as such and the first switch_to will do the job.
- */
-void clear_flushed_tls(struct task_struct *task)
-{
-	int i;
-
-	for (i = GDT_ENTRY_TLS_MIN; i < GDT_ENTRY_TLS_MAX; i++) {
-		struct uml_tls_struct* curr =
-			&task->thread.arch.tls_array[i - GDT_ENTRY_TLS_MIN];
-
-		/*
-		 * Still correct to do this, if it wasn't present on the host it
-		 * will remain as flushed as it was.
-		 */
-		if (!curr->present)
-			continue;
-
-		curr->flushed = 0;
-	}
-}
-
-/*
- * In SKAS0 mode, currently, multiple guest threads sharing the same ->mm have a
- * common host process. So this is needed in SKAS0 too.
- *
- * However, if each thread had a different host process (and this was discussed
- * for SMP support) this won't be needed.
- *
- * And this will not need be used when (and if) we'll add support to the host
- * SKAS patch.
- */
-
-int arch_switch_tls(struct task_struct *to)
-{
-	if (!host_supports_tls)
-		return 0;
-
-	/*
-	 * We have no need whatsoever to switch TLS for kernel threads; beyond
-	 * that, that would also result in us calling os_set_thread_area with
-	 * userspace_pid[cpu] == 0, which gives an error.
-	 */
-	if (likely(to->mm))
-		return load_TLS(O_FORCE, to);
-
-	return 0;
-}
-
-static int set_tls_entry(struct task_struct* task, struct user_desc *info,
-			 int idx, int flushed)
-{
-	struct thread_struct *t = &task->thread;
-
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].tls = *info;
-	t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].present = 1;
-	t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].flushed = flushed;
-
-	return 0;
-}
-
-int arch_copy_tls(struct task_struct *new)
-{
-	struct user_desc info;
-	int idx, ret = -EFAULT;
-
-	if (copy_from_user(&info,
-			   (void __user *) UPT_ESI(&new->thread.regs.regs),
-			   sizeof(info)))
-		goto out;
-
-	ret = -EINVAL;
-	if (LDT_empty(&info))
-		goto out;
-
-	idx = info.entry_number;
-
-	ret = set_tls_entry(new, &info, idx, 0);
-out:
-	return ret;
-}
-
-/* XXX: use do_get_thread_area to read the host value? I'm not at all sure! */
-static int get_tls_entry(struct task_struct *task, struct user_desc *info,
-			 int idx)
-{
-	struct thread_struct *t = &task->thread;
-
-	if (!t->arch.tls_array)
-		goto clear;
-
-	if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
-		return -EINVAL;
-
-	if (!t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].present)
-		goto clear;
-
-	*info = t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].tls;
-
-out:
-	/*
-	 * Temporary debugging check, to make sure that things have been
-	 * flushed. This could be triggered if load_TLS() failed.
-	 */
-	if (unlikely(task == current &&
-		     !t->arch.tls_array[idx - GDT_ENTRY_TLS_MIN].flushed)) {
-		printk(KERN_ERR "get_tls_entry: task with pid %d got here "
-				"without flushed TLS.", current->pid);
-	}
-
-	return 0;
-clear:
-	/*
-	 * When the TLS entry has not been set, the values read to user in the
-	 * tls_array are 0 (because it's cleared at boot, see
-	 * arch/i386/kernel/head.S:cpu_gdt_table). Emulate that.
-	 */
-	clear_user_desc(info);
-	info->entry_number = idx;
-	goto out;
-}
-
-int sys_set_thread_area(struct user_desc __user *user_desc)
-{
-	struct user_desc info;
-	int idx, ret;
-
-	if (!host_supports_tls)
-		return -ENOSYS;
-
-	if (copy_from_user(&info, user_desc, sizeof(info)))
-		return -EFAULT;
-
-	idx = info.entry_number;
-
-	if (idx == -1) {
-		idx = get_free_idx(current);
-		if (idx < 0)
-			return idx;
-		info.entry_number = idx;
-		/* Tell the user which slot we chose for him.*/
-		if (put_user(idx, &user_desc->entry_number))
-			return -EFAULT;
-	}
-
-	ret = do_set_thread_area(&info);
-	if (ret)
-		return ret;
-	return set_tls_entry(current, &info, idx, 1);
-}
-
-/*
- * Perform set_thread_area on behalf of the traced child.
- * Note: error handling is not done on the deferred load, and this differ from
- * i386. However the only possible error are caused by bugs.
- */
-int ptrace_set_thread_area(struct task_struct *child, int idx,
-			   struct user_desc __user *user_desc)
-{
-	struct user_desc info;
-
-	if (!host_supports_tls)
-		return -EIO;
-
-	if (copy_from_user(&info, user_desc, sizeof(info)))
-		return -EFAULT;
-
-	return set_tls_entry(child, &info, idx, 0);
-}
-
-int sys_get_thread_area(struct user_desc __user *user_desc)
-{
-	struct user_desc info;
-	int idx, ret;
-
-	if (!host_supports_tls)
-		return -ENOSYS;
-
-	if (get_user(idx, &user_desc->entry_number))
-		return -EFAULT;
-
-	ret = get_tls_entry(current, &info, idx);
-	if (ret < 0)
-		goto out;
-
-	if (copy_to_user(user_desc, &info, sizeof(info)))
-		ret = -EFAULT;
-
-out:
-	return ret;
-}
-
-/*
- * Perform get_thread_area on behalf of the traced child.
- */
-int ptrace_get_thread_area(struct task_struct *child, int idx,
-		struct user_desc __user *user_desc)
-{
-	struct user_desc info;
-	int ret;
-
-	if (!host_supports_tls)
-		return -EIO;
-
-	ret = get_tls_entry(child, &info, idx);
-	if (ret < 0)
-		goto out;
-
-	if (copy_to_user(user_desc, &info, sizeof(info)))
-		ret = -EFAULT;
-out:
-	return ret;
-}
-
-/*
- * This code is really i386-only, but it detects and logs x86_64 GDT indexes
- * if a 32-bit UML is running on a 64-bit host.
- */
-static int __init __setup_host_supports_tls(void)
-{
-	check_host_supports_tls(&host_supports_tls, &host_gdt_entry_tls_min);
-	if (host_supports_tls) {
-		printk(KERN_INFO "Host TLS support detected\n");
-		printk(KERN_INFO "Detected host type: ");
-		switch (host_gdt_entry_tls_min) {
-		case GDT_ENTRY_TLS_MIN_I386:
-			printk(KERN_CONT "i386");
-			break;
-		case GDT_ENTRY_TLS_MIN_X86_64:
-			printk(KERN_CONT "x86_64");
-			break;
-		}
-		printk(KERN_CONT " (GDT indexes %d to %d)\n",
-		       host_gdt_entry_tls_min,
-		       host_gdt_entry_tls_min + GDT_ENTRY_TLS_ENTRIES);
-	} else
-		printk(KERN_ERR "  Host TLS support NOT detected! "
-				"TLS support inside UML will not work\n");
-	return 0;
-}
-
-__initcall(__setup_host_supports_tls);
diff --git a/arch/um/sys-i386/user-offsets.c b/arch/um/sys-i386/user-offsets.c
deleted file mode 100644
index 5f883bfe773f..000000000000
--- a/arch/um/sys-i386/user-offsets.c
+++ /dev/null
@@ -1,53 +0,0 @@
-#include <stdio.h>
-#include <stddef.h>
-#include <signal.h>
-#include <sys/poll.h>
-#include <sys/user.h>
-#include <sys/mman.h>
-#include <asm/ptrace.h>
-
-#define DEFINE(sym, val) \
-	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
-
-#define DEFINE_LONGS(sym, val) \
-	asm volatile("\n->" #sym " %0 " #val : : "i" (val/sizeof(unsigned long)))
-
-#define OFFSET(sym, str, mem) \
-	DEFINE(sym, offsetof(struct str, mem));
-
-void foo(void)
-{
-	OFFSET(HOST_SC_TRAPNO, sigcontext, trapno);
-	OFFSET(HOST_SC_ERR, sigcontext, err);
-	OFFSET(HOST_SC_CR2, sigcontext, cr2);
-
-	DEFINE_LONGS(HOST_FP_SIZE, sizeof(struct user_fpregs_struct));
-	DEFINE_LONGS(HOST_FPX_SIZE, sizeof(struct user_fpxregs_struct));
-
-	DEFINE(HOST_IP, EIP);
-	DEFINE(HOST_SP, UESP);
-	DEFINE(HOST_EFLAGS, EFL);
-	DEFINE(HOST_EAX, EAX);
-	DEFINE(HOST_EBX, EBX);
-	DEFINE(HOST_ECX, ECX);
-	DEFINE(HOST_EDX, EDX);
-	DEFINE(HOST_ESI, ESI);
-	DEFINE(HOST_EDI, EDI);
-	DEFINE(HOST_EBP, EBP);
-	DEFINE(HOST_CS, CS);
-	DEFINE(HOST_SS, SS);
-	DEFINE(HOST_DS, DS);
-	DEFINE(HOST_FS, FS);
-	DEFINE(HOST_ES, ES);
-	DEFINE(HOST_GS, GS);
-	DEFINE(UM_FRAME_SIZE, sizeof(struct user_regs_struct));
-
-	/* XXX Duplicated between i386 and x86_64 */
-	DEFINE(UM_POLLIN, POLLIN);
-	DEFINE(UM_POLLPRI, POLLPRI);
-	DEFINE(UM_POLLOUT, POLLOUT);
-
-	DEFINE(UM_PROT_READ, PROT_READ);
-	DEFINE(UM_PROT_WRITE, PROT_WRITE);
-	DEFINE(UM_PROT_EXEC, PROT_EXEC);
-}