22 files changed, 53 insertions, 221 deletions

diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index d44fb528254..9f18061ef4c 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -124,14 +124,16 @@ void irq_unlock(unsigned long flags)
 	spin_unlock_irqrestore(&irq_spinlock, flags);
 }
 
-/*  presently hw_interrupt_type must define (startup || enable) &&
- *  disable && end */
+/* hw_interrupt_type must define (startup || enable) &&
+ * (shutdown || disable) && end */
 static void dummy(unsigned int irq)
 {
 }
 
-static struct hw_interrupt_type SIGIO_irq_type = {
+/* This is used for everything else than the timer. */
+static struct hw_interrupt_type normal_irq_type = {
 	.typename = "SIGIO",
+	.release = free_irq_by_irq_and_dev,
 	.disable = dummy,
 	.enable = dummy,
 	.ack = dummy,
@@ -140,6 +142,7 @@ static struct hw_interrupt_type SIGIO_irq_type = {
 
 static struct hw_interrupt_type SIGVTALRM_irq_type = {
 	.typename = "SIGVTALRM",
+	.release = free_irq_by_irq_and_dev,
 	.shutdown = dummy, /* never called */
 	.disable = dummy,
 	.enable = dummy,
@@ -160,7 +163,7 @@ void __init init_IRQ(void)
 		irq_desc[i].status = IRQ_DISABLED;
 		irq_desc[i].action = NULL;
 		irq_desc[i].depth = 1;
-		irq_desc[i].handler = &SIGIO_irq_type;
+		irq_desc[i].handler = &normal_irq_type;
 		enable_irq(i);
 	}
 }
diff --git a/arch/um/kernel/irq_user.c b/arch/um/kernel/irq_user.c
index b3074cbaa47..c3ccaf24f3e 100644
--- a/arch/um/kernel/irq_user.c
+++ b/arch/um/kernel/irq_user.c
@@ -85,8 +85,6 @@ void sigio_handler(int sig, union uml_pt_regs *regs)
 				next = irq_fd->next;
 				if(irq_fd->freed){
 					free_irq(irq_fd->irq, irq_fd->id);
-					free_irq_by_irq_and_dev(irq_fd->irq,
-								irq_fd->id);
 				}
 			}
 		}
diff --git a/arch/um/kernel/main.c b/arch/um/kernel/main.c
index e59f5815267..1e1a87f1c51 100644
--- a/arch/um/kernel/main.c
+++ b/arch/um/kernel/main.c
@@ -69,7 +69,6 @@ static __init void do_uml_initcalls(void)
 
 static void last_ditch_exit(int sig)
 {
-        kmalloc_ok = 0;
 	signal(SIGINT, SIG_DFL);
 	signal(SIGTERM, SIG_DFL);
 	signal(SIGHUP, SIG_DFL);
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index c22825f13e4..5597bd39e6b 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -53,7 +53,6 @@ static void setup_highmem(unsigned long highmem_start,
 	for(i = 0; i < highmem_len >> PAGE_SHIFT; i++){
 		page = &mem_map[highmem_pfn + i];
 		ClearPageReserved(page);
-		set_bit(PG_highmem, &page->flags);
 		set_page_count(page, 1);
 		__free_page(page);
 	}
diff --git a/arch/um/kernel/process_kern.c b/arch/um/kernel/process_kern.c
index 804c6bbdf67..d4036ed680b 100644
--- a/arch/um/kernel/process_kern.c
+++ b/arch/um/kernel/process_kern.c
@@ -8,6 +8,7 @@
 #include "linux/kernel.h"
 #include "linux/sched.h"
 #include "linux/interrupt.h"
+#include "linux/string.h"
 #include "linux/mm.h"
 #include "linux/slab.h"
 #include "linux/utsname.h"
@@ -95,8 +96,8 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
 
 	current->thread.request.u.thread.proc = fn;
 	current->thread.request.u.thread.arg = arg;
-	pid = do_fork(CLONE_VM | CLONE_UNTRACED | flags, 0, NULL, 0, NULL,
-		      NULL);
+	pid = do_fork(CLONE_VM | CLONE_UNTRACED | flags, 0,
+		      &current->thread.regs, 0, NULL, NULL);
 	if(pid < 0)
 		panic("do_fork failed in kernel_thread, errno = %d", pid);
 	return(pid);
@@ -168,7 +169,7 @@ int current_pid(void)
 
 void default_idle(void)
 {
-	uml_idle_timer();
+	CHOOSE_MODE(uml_idle_timer(), (void) 0);
 
 	atomic_inc(&init_mm.mm_count);
 	current->mm = &init_mm;
@@ -322,12 +323,7 @@ void do_uml_exitcalls(void)
 
 char *uml_strdup(char *string)
 {
-	char *new;
-
-	new = kmalloc(strlen(string) + 1, GFP_KERNEL);
-	if(new == NULL) return(NULL);
-	strcpy(new, string);
-	return(new);
+	return kstrdup(string, GFP_KERNEL);
 }
 
 int copy_to_user_proc(void __user *to, void *from, int size)
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index 207f89d7490..fcec51da1d3 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -38,14 +38,14 @@ static void kill_off_processes(void)
 
 void uml_cleanup(void)
 {
-	kill_off_processes();
+        kmalloc_ok = 0;
 	do_uml_exitcalls();
+	kill_off_processes();
 }
 
 void machine_restart(char * __unused)
 {
-	do_uml_exitcalls();
-	kill_off_processes();
+        uml_cleanup();
 	CHOOSE_MODE(reboot_tt(), reboot_skas());
 }
 
@@ -53,8 +53,7 @@ EXPORT_SYMBOL(machine_restart);
 
 void machine_power_off(void)
 {
-	do_uml_exitcalls();
-	kill_off_processes();
+        uml_cleanup();
 	CHOOSE_MODE(halt_tt(), halt_skas());
 }
 
diff --git a/arch/um/kernel/skas/Makefile b/arch/um/kernel/skas/Makefile
index d37d1bfcd6f..ff69c4b312c 100644
--- a/arch/um/kernel/skas/Makefile
+++ b/arch/um/kernel/skas/Makefile
@@ -4,10 +4,10 @@
 #
 
 obj-y := exec_kern.o mem.o mem_user.o mmu.o process.o process_kern.o \
-	syscall_kern.o syscall_user.o time.o tlb.o trap_user.o uaccess.o \
+	syscall_kern.o syscall_user.o tlb.o trap_user.o uaccess.o \
 
 subdir- := util
 
-USER_OBJS := process.o time.o
+USER_OBJS := process.o
 
 include arch/um/scripts/Makefile.rules
diff --git a/arch/um/kernel/skas/include/mode-skas.h b/arch/um/kernel/skas/include/mode-skas.h
index c1e33bd788d..bcd26a6a388 100644
--- a/arch/um/kernel/skas/include/mode-skas.h
+++ b/arch/um/kernel/skas/include/mode-skas.h
@@ -13,7 +13,6 @@ extern unsigned long exec_fp_regs[];
 extern unsigned long exec_fpx_regs[];
 extern int have_fpx_regs;
 
-extern void user_time_init_skas(void);
 extern void sig_handler_common_skas(int sig, void *sc_ptr);
 extern void halt_skas(void);
 extern void reboot_skas(void);
diff --git a/arch/um/kernel/skas/process_kern.c b/arch/um/kernel/skas/process_kern.c
index fc71ef29578..0a7b8aa55db 100644
--- a/arch/um/kernel/skas/process_kern.c
+++ b/arch/um/kernel/skas/process_kern.c
@@ -111,8 +111,7 @@ int copy_thread_skas(int nr, unsigned long clone_flags, unsigned long sp,
   	void (*handler)(int);
 
 	if(current->thread.forking){
-	  	memcpy(&p->thread.regs.regs.skas, 
-		       &current->thread.regs.regs.skas, 
+	  	memcpy(&p->thread.regs.regs.skas, &regs->regs.skas,
 		       sizeof(p->thread.regs.regs.skas));
 		REGS_SET_SYSCALL_RETURN(p->thread.regs.regs.skas.regs, 0);
 		if(sp != 0) REGS_SP(p->thread.regs.regs.skas.regs) = sp;
@@ -181,7 +180,6 @@ int start_uml_skas(void)
 	start_userspace(0);
 
 	init_new_thread_signals(1);
-	uml_idle_timer();
 
 	init_task.thread.request.u.thread.proc = start_kernel_proc;
 	init_task.thread.request.u.thread.arg = NULL;
@@ -201,14 +199,3 @@ int thread_pid_skas(struct task_struct *task)
 #warning Need to look up userspace_pid by cpu
 	return(userspace_pid[0]);
 }
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/skas/time.c b/arch/um/kernel/skas/time.c
deleted file mode 100644
index 98091494b89..00000000000
--- a/arch/um/kernel/skas/time.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/* 
- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <sys/signal.h>
-#include <sys/time.h>
-#include "time_user.h"
-#include "process.h"
-#include "user.h"
-
-void user_time_init_skas(void)
-{
-        if(signal(SIGALRM, (__sighandler_t) alarm_handler) == SIG_ERR)
-                panic("Couldn't set SIGALRM handler");
- 	if(signal(SIGVTALRM, (__sighandler_t) alarm_handler) == SIG_ERR)
- 		panic("Couldn't set SIGVTALRM handler");
-	set_interval(ITIMER_VIRTUAL);
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/syscall_kern.c b/arch/um/kernel/syscall_kern.c
index b7a55251e89..8e1a3501ff4 100644
--- a/arch/um/kernel/syscall_kern.c
+++ b/arch/um/kernel/syscall_kern.c
@@ -31,7 +31,8 @@ long sys_fork(void)
 	long ret;
 
 	current->thread.forking = 1;
-        ret = do_fork(SIGCHLD, 0, NULL, 0, NULL, NULL);
+	ret = do_fork(SIGCHLD, UPT_SP(&current->thread.regs.regs),
+		      &current->thread.regs, 0, NULL, NULL);
 	current->thread.forking = 0;
 	return(ret);
 }
@@ -41,8 +42,9 @@ long sys_vfork(void)
 	long ret;
 
 	current->thread.forking = 1;
-	ret = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, 0, NULL, 0, NULL,
-		      NULL);
+	ret = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
+		      UPT_SP(&current->thread.regs.regs),
+		      &current->thread.regs, 0, NULL, NULL);
 	current->thread.forking = 0;
 	return(ret);
 }
@@ -162,14 +164,3 @@ int next_syscall_index(int limit)
 	spin_unlock(&syscall_lock);
 	return(ret);
 }
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index c40c86a3f91..f829b309b63 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -33,7 +33,7 @@ void timer(void)
 	timeradd(&xtime, &local_offset, &xtime);
 }
 
-void set_interval(int timer_type)
+static void set_interval(int timer_type)
 {
 	int usec = 1000000/hz();
 	struct itimerval interval = ((struct itimerval) { { 0, usec },
@@ -45,12 +45,7 @@ void set_interval(int timer_type)
 
 void enable_timer(void)
 {
-	int usec = 1000000/hz();
-	struct itimerval enable = ((struct itimerval) { { 0, usec },
-							{ 0, usec }});
-	if(setitimer(ITIMER_VIRTUAL, &enable, NULL))
-		printk("enable_timer - setitimer failed, errno = %d\n",
-		       errno);
+	set_interval(ITIMER_VIRTUAL);
 }
 
 void disable_timer(void)
@@ -155,13 +150,15 @@ void idle_sleep(int secs)
 	nanosleep(&ts, NULL);
 }
 
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+/* XXX This partly duplicates init_irq_signals */
+
+void user_time_init(void)
+{
+	set_handler(SIGVTALRM, (__sighandler_t) alarm_handler,
+		    SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
+		    SIGALRM, SIGUSR2, -1);
+	set_handler(SIGALRM, (__sighandler_t) alarm_handler,
+		    SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
+		    SIGVTALRM, SIGUSR2, -1);
+	set_interval(ITIMER_VIRTUAL);
+}
diff --git a/arch/um/kernel/time_kern.c b/arch/um/kernel/time_kern.c
index 6516fc52afe..a8b4ef601f5 100644
--- a/arch/um/kernel/time_kern.c
+++ b/arch/um/kernel/time_kern.c
@@ -162,7 +162,7 @@ int __init timer_init(void)
 {
 	int err;
 
-	CHOOSE_MODE(user_time_init_tt(), user_time_init_skas());
+	user_time_init();
 	err = request_irq(TIMER_IRQ, um_timer, SA_INTERRUPT, "timer", NULL);
 	if(err != 0)
 		printk(KERN_ERR "timer_init : request_irq failed - "
diff --git a/arch/um/kernel/tt/Makefile b/arch/um/kernel/tt/Makefile
index c3faea21a99..6939e5af847 100644
--- a/arch/um/kernel/tt/Makefile
+++ b/arch/um/kernel/tt/Makefile
@@ -3,27 +3,12 @@
 # Licensed under the GPL
 #
 
-extra-y := unmap_fin.o
-targets := unmap.o
-clean-files := unmap_tmp.o
-
 obj-y = exec_kern.o exec_user.o gdb.o ksyms.o mem.o mem_user.o process_kern.o \
-	syscall_kern.o syscall_user.o time.o tlb.o tracer.o trap_user.o \
+	syscall_kern.o syscall_user.o tlb.o tracer.o trap_user.o \
 	uaccess.o uaccess_user.o
 
 obj-$(CONFIG_PT_PROXY) += gdb_kern.o ptproxy/
 
-USER_OBJS := gdb.o time.o tracer.o
+USER_OBJS := gdb.o tracer.o
 
 include arch/um/scripts/Makefile.rules
-
-UNMAP_CFLAGS := $(patsubst -pg -DPROFILING,,$(USER_CFLAGS))
-UNMAP_CFLAGS := $(patsubst -fprofile-arcs -ftest-coverage,,$(UNMAP_CFLAGS))
-
-#XXX: partially copied from arch/um/scripts/Makefile.rules
-$(obj)/unmap.o: c_flags = -Wp,-MD,$(depfile) $(UNMAP_CFLAGS)
-
-$(obj)/unmap_fin.o : $(obj)/unmap.o
-	$(LD) -r -o $(obj)/unmap_tmp.o $< $(shell $(CC) -print-file-name=libc.a)
-	$(OBJCOPY) $(obj)/unmap_tmp.o $@ -G switcheroo
-
diff --git a/arch/um/kernel/tt/gdb.c b/arch/um/kernel/tt/gdb.c
index 19a0ad7b35b..37e22d71a0d 100644
--- a/arch/um/kernel/tt/gdb.c
+++ b/arch/um/kernel/tt/gdb.c
@@ -153,10 +153,10 @@ void remove_gdb_cb(void *unused)
 	exit_debugger_cb(NULL);
 }
 
-int gdb_remove(char *unused)
+int gdb_remove(int unused)
 {
 	initial_thread_cb(remove_gdb_cb, NULL);
-	return(0);
+        return 0;
 }
 
 void signal_usr1(int sig)
diff --git a/arch/um/kernel/tt/gdb_kern.c b/arch/um/kernel/tt/gdb_kern.c
index 93fb121f86a..26506388a6a 100644
--- a/arch/um/kernel/tt/gdb_kern.c
+++ b/arch/um/kernel/tt/gdb_kern.c
@@ -10,7 +10,7 @@
 #ifdef CONFIG_MCONSOLE
 
 extern int gdb_config(char *str);
-extern int gdb_remove(char *unused);
+extern int gdb_remove(int n);
 
 static struct mc_device gdb_mc = {
 	.name		= "gdb",
diff --git a/arch/um/kernel/tt/include/debug.h b/arch/um/kernel/tt/include/debug.h
index 8eff674107c..738435461e1 100644
--- a/arch/um/kernel/tt/include/debug.h
+++ b/arch/um/kernel/tt/include/debug.h
@@ -4,8 +4,8 @@
  * Licensed under the GPL
  */
 
-#ifndef __DEBUG_H
-#define __DEBUG_H
+#ifndef __UML_TT_DEBUG_H
+#define __UML_TT_DEBUG_H
 
 extern int debugger_proxy(int status, pid_t pid);
 extern void child_proxy(pid_t pid, int status);
@@ -13,17 +13,6 @@ extern void init_proxy (pid_t pid, int waiting, int status);
 extern int start_debugger(char *prog, int startup, int stop, int *debugger_fd);
 extern void fake_child_exit(void);
 extern int gdb_config(char *str);
-extern int gdb_remove(char *unused);
+extern int gdb_remove(int unused);
 
 #endif
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/tt/include/mode-tt.h b/arch/um/kernel/tt/include/mode-tt.h
index efe46201906..e171e15fead 100644
--- a/arch/um/kernel/tt/include/mode-tt.h
+++ b/arch/um/kernel/tt/include/mode-tt.h
@@ -13,7 +13,6 @@ enum { OP_NONE, OP_EXEC, OP_FORK, OP_TRACE_ON, OP_REBOOT, OP_HALT, OP_CB };
 extern int tracing_pid;
 
 extern int tracer(int (*init_proc)(void *), void *sp);
-extern void user_time_init_tt(void);
 extern void sig_handler_common_tt(int sig, void *sc);
 extern void syscall_handler_tt(int sig, union uml_pt_regs *regs);
 extern void reboot_tt(void);
diff --git a/arch/um/kernel/tt/process_kern.c b/arch/um/kernel/tt/process_kern.c
index 776310fd5b8..a189a2b9293 100644
--- a/arch/um/kernel/tt/process_kern.c
+++ b/arch/um/kernel/tt/process_kern.c
@@ -266,10 +266,10 @@ int copy_thread_tt(int nr, unsigned long clone_flags, unsigned long sp,
 	}
 
 	if(current->thread.forking){
-		sc_to_sc(UPT_SC(&p->thread.regs.regs), 
-			 UPT_SC(&current->thread.regs.regs));
+		sc_to_sc(UPT_SC(&p->thread.regs.regs), UPT_SC(&regs->regs));
 		SC_SET_SYSCALL_RETURN(UPT_SC(&p->thread.regs.regs), 0);
-		if(sp != 0) SC_SP(UPT_SC(&p->thread.regs.regs)) = sp;
+		if(sp != 0)
+			SC_SP(UPT_SC(&p->thread.regs.regs)) = sp;
 	}
 	p->thread.mode.tt.extern_pid = new_pid;
 
@@ -459,14 +459,3 @@ int is_valid_pid(int pid)
 	read_unlock(&tasklist_lock);
 	return(0);
 }
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/tt/time.c b/arch/um/kernel/tt/time.c
deleted file mode 100644
index 8565b71b07c..00000000000
--- a/arch/um/kernel/tt/time.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/* 
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <signal.h>
-#include <sys/time.h>
-#include <time_user.h>
-#include "process.h"
-#include "user.h"
-
-void user_time_init_tt(void)
-{
-	if(signal(SIGVTALRM, (__sighandler_t) alarm_handler) == SIG_ERR)
-		panic("Couldn't set SIGVTALRM handler");
-	set_interval(ITIMER_VIRTUAL);
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/tt/unmap.c b/arch/um/kernel/tt/unmap.c
deleted file mode 100644
index 3f7aecdbe53..00000000000
--- a/arch/um/kernel/tt/unmap.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* 
- * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <sys/mman.h>
-
-int switcheroo(int fd, int prot, void *from, void *to, int size)
-{
-	if(munmap(to, size) < 0){
-		return(-1);
-	}
-	if(mmap(to, size, prot,	MAP_SHARED | MAP_FIXED, fd, 0) != to){
-		return(-1);
-	}
-	if(munmap(from, size) < 0){
-		return(-1);
-	}
-	return(0);
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index dd5355500bd..61dfd4fef75 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -14,19 +14,10 @@ SECTIONS
   /* Used in arch/um/kernel/mem.c. Any memory between START and __binary_start
    * is remapped.*/
   __binary_start = .;
-#ifdef MODE_TT
-  .thread_private : {
-    __start_thread_private = .;
-    errno = .;
-    . += 4;
-    arch/um/kernel/tt/unmap_fin.o (.data)
-    __end_thread_private = .;
-  }
-  . = ALIGN(4096);
-  .remap : { arch/um/kernel/tt/unmap_fin.o (.text) }
 
-  /* We want it only if we are in MODE_TT. In both cases, however, when MODE_TT
-   * is off the resulting binary segfaults.*/
+#ifdef MODE_TT
+  .remap_data : { arch/um/sys-SUBARCH/unmap_fin.o (.data .bss) }
+  .remap : { arch/um/sys-SUBARCH/unmap_fin.o (.text) }
 
   . = ALIGN(4096);		/* Init code and data */
 #endif