x86_64: prepare shared kernel/syscall.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 26 insertions, 0 deletions

diff --git a/arch/x86_64/kernel/syscall_64.c b/arch/x86_64/kernel/syscall_64.c
new file mode 100644
index 0000000..63d592c
--- /dev/null
+++ b/arch/x86_64/kernel/syscall_64.c
@@ -0,0 +1,26 @@
+/* System call table for x86-64. */ 
+
+#include <linux/linkage.h>
+#include <linux/sys.h>
+#include <linux/cache.h>
+#include <asm/asm-offsets.h>
+
+#define __NO_STUBS
+
+#define __SYSCALL(nr, sym) extern asmlinkage void sym(void) ; 
+#undef _ASM_X86_64_UNISTD_H_
+#include <asm-x86_64/unistd.h>
+
+#undef __SYSCALL
+#define __SYSCALL(nr, sym) [ nr ] = sym, 
+#undef _ASM_X86_64_UNISTD_H_
+
+typedef void (*sys_call_ptr_t)(void); 
+
+extern void sys_ni_syscall(void);
+
+const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = {
+	/* Smells like a like a compiler bug -- it doesn't work when the & below is removed. */ 
+	[0 ... __NR_syscall_max] = &sys_ni_syscall,
+#include <asm-x86_64/unistd.h>
+};