x86: also define AT_VECTOR_SIZE_ARCH

Jan Beulich · Ingo Molnar · commit 213fde710242 · 2007-12-18T18:05:58.000+01:00
The patch introducing this left out 64-bit x86 despite it also having
extra entries.

this solves Xen guest troubles.

Signed-off-by: Jan Beulich &lt;jbeulich@novell.com&gt;
Signed-off-by: Ingo Molnar &lt;mingo@elte.hu&gt;
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
diff --git a/include/asm-x86/system_64.h b/include/asm-x86/system_64.h
@@ -7,6 +7,13 @@
 
 #ifdef __KERNEL__
 
+/* entries in ARCH_DLINFO: */
+#ifdef CONFIG_IA32_EMULATION
+# define AT_VECTOR_SIZE_ARCH 2
+#else
+# define AT_VECTOR_SIZE_ARCH 1
+#endif
+
 #define __SAVE(reg,offset) "movq %%" #reg ",(14-" #offset ")*8(%%rsp)\n\t"
 #define __RESTORE(reg,offset) "movq (14-" #offset ")*8(%%rsp),%%" #reg "\n\t"
 
