1 files changed, 20 insertions, 26 deletions

diff --git a/arch/um/sys-i386/bugs.c b/arch/um/sys-i386/bugs.c
index fc991184850c..b0cb05228a97 100644
--- a/arch/um/sys-i386/bugs.c
+++ b/arch/um/sys-i386/bugs.c
@@ -3,14 +3,12 @@
  * Licensed under the GPL
  */
 
-#include <errno.h>
 #include <signal.h>
-#include <string.h>
 #include "kern_constants.h"
-#include "os.h"
+#include "longjmp.h"
 #include "task.h"
 #include "user.h"
-#include "sysdep/archsetjmp.h"
+#include "sysdep/ptrace.h"
 
 /* Set during early boot */
 int host_has_cmov = 1;
@@ -22,7 +20,7 @@ static void cmov_sigill_test_handler(int sig)
         longjmp(cmov_test_return, 1);
 }
 
-static void test_for_host_cmov(void)
+void arch_check_bugs(void)
 {
         struct sigaction old, new;
 
@@ -44,16 +42,7 @@ static void test_for_host_cmov(void)
         sigaction(SIGILL, &old, &new);
 }
 
-void arch_init_thread(void)
-{
-}
-
-void arch_check_bugs(void)
-{
-        test_for_host_cmov();
-}
-
-int arch_handle_signal(int sig, struct uml_pt_regs *regs)
+void arch_examine_signal(int sig, struct uml_pt_regs *regs)
 {
         unsigned char tmp[2];
 
@@ -62,20 +51,25 @@ int arch_handle_signal(int sig, struct uml_pt_regs *regs)
          * SIGILL in init.
          */
         if ((sig != SIGILL) || (TASK_PID(get_current()) != 1))
-                return 0;
+                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 (copy_from_user_proc(tmp, (void *) UPT_IP(regs), 2))
-                panic("SIGILL in init, could not read instructions!\n");
         if ((tmp[0] != 0x0f) || ((tmp[1] & 0xf0) != 0x40))
-                return 0;
+                return;
 
         if (host_has_cmov == 0)
-                panic("SIGILL caused by cmov, which this processor doesn't "
-                      "implement, boot a filesystem compiled for older "
-                      "processors");
+                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)
-                panic("SIGILL caused by cmov, which this processor claims to "
-                      "implement");
-        else panic("Bad value for host_has_cmov (%d)", host_has_cmov);
-        return 0;
+                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);
 }