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>

1 files changed, 0 insertions, 74 deletions

diff --git a/arch/um/sys-i386/bugs.c b/arch/um/sys-i386/bugs.c
deleted file mode 100644
index 7058e1f..0000000
--- 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);
-}