MIPS: IP checksums: Optimize adjust of sum on buffers of odd alignment.

[linux-2.6-omap-h63xx.git] / arch / um / sys-x86_64 / stub_segv.c

diff --git a/arch/um/sys-x86_64/stub_segv.c b/arch/um/sys-x86_64/stub_segv.c
index 161d1fe9c034f8d931447d6303ded11b278d65ef..ced051afc705c47ad29bcbacc78a0443a064267a 100644 (file)
--- a/arch/um/sys-x86_64/stub_segv.c
+++ b/arch/um/sys-x86_64/stub_segv.c
@@ -1,31 +1,22 @@
 /*
- * Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
+ * Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
  * Licensed under the GPL
  */
 
 #include <signal.h>
-#include <linux/compiler.h>
-#include <asm/unistd.h>
-#include "uml-config.h"
-#include "sysdep/sigcontext.h"
+#include "as-layout.h"
+#include "sysdep/stub.h"
 #include "sysdep/faultinfo.h"
+#include "sysdep/sigcontext.h"
 
 void __attribute__ ((__section__ (".__syscall_stub")))
 stub_segv_handler(int sig)
 {
        struct ucontext *uc;
 
-       __asm__("movq %%rdx, %0" : "=g" (uc) :);
-        GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA),
-                              &uc->uc_mcontext);
-
-       __asm__("movq %0, %%rax ; syscall": : "g" (__NR_getpid));
-       __asm__("movq %%rax, %%rdi ; movq %0, %%rax ; movq %1, %%rsi ;"
-               "syscall": : "g" (__NR_kill), "g" (SIGUSR1));
-       /* Two popqs to restore the stack to the state just before entering
-        * the handler, one pops the return address, the other pops the frame
-        * pointer.
-        */
-       __asm__("popq %%rax ; popq %%rax ; movq %0, %%rax ; syscall" : : "g"
-               (__NR_rt_sigreturn));
+       __asm__ __volatile__("movq %%rdx, %0" : "=g" (uc) :);
+       GET_FAULTINFO_FROM_SC(*((struct faultinfo *) STUB_DATA),
+                             &uc->uc_mcontext);
+       trap_myself();
 }
+