vdso: make vDSO symbol names architecture-specific

This patch moves the enum VDSO_SYMBOL_* and macros VDSO_SYMBOL_*_NAME
to the x86 specific header since different architectures export
different symbols from their vDSOs.
Signed-off-by: Alexander Kartashov <alekskartashov@parallels.com>
Looks-good-to: Cyrill Gorcunov <gorcunov@openvz.org>
Reviewed-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

arch/arm/include/asm/vdso.h

@@ -9,6 +9,8 @@ struct vdso_symtable;
 struct parasite_ctl;
 struct vm_area_list;
 
+#define VDSO_SYMBOL_MAX 1
+
 extern int vdso_redirect_calls(void *base_to, void *base_from, struct vdso_symtable *to, struct vdso_symtable *from);
 extern int vdso_fill_symtable(char *mem, size_t size,struct vdso_symtable *t);
 extern int vdso_remap(char *who, unsigned long from, unsigned long to, size_t size);

arch/x86/include/asm/vdso.h

@@ -5,6 +5,26 @@
 
 #include "protobuf/vma.pb-c.h"
 
+
+/*
+ * This is a minimal amount of symbols
+ * we should support at the moment.
+ */
+enum {
+	VDSO_SYMBOL_GETTIMEOFDAY,
+	VDSO_SYMBOL_GETCPU,
+	VDSO_SYMBOL_CLOCK_GETTIME,
+	VDSO_SYMBOL_TIME,
+
+	VDSO_SYMBOL_MAX
+};
+
+#define VDSO_SYMBOL_GETTIMEOFDAY_NAME	"__vdso_gettimeofday"
+#define VDSO_SYMBOL_GETCPU_NAME		"__vdso_getcpu"
+#define VDSO_SYMBOL_CLOCK_GETTIME_NAME	"__vdso_clock_gettime"
+#define VDSO_SYMBOL_TIME_NAME		"__vdso_time"
+
+
 struct vdso_symtable;
 struct parasite_ctl;
 struct vm_area_list;

include/vdso.h

@@ -9,23 +9,6 @@
 
 #define VDSO_PROT		(PROT_READ | PROT_EXEC)
 
-/*
- * This is a minimal amount of symbols
- * we should support at the moment.
- */
-enum {
-	VDSO_SYMBOL_GETTIMEOFDAY,
-	VDSO_SYMBOL_GETCPU,
-	VDSO_SYMBOL_CLOCK_GETTIME,
-	VDSO_SYMBOL_TIME,
-
-	VDSO_SYMBOL_MAX
-};
-
-#define VDSO_SYMBOL_GETTIMEOFDAY_NAME	"__vdso_gettimeofday"
-#define VDSO_SYMBOL_GETCPU_NAME		"__vdso_getcpu"
-#define VDSO_SYMBOL_CLOCK_GETTIME_NAME	"__vdso_clock_gettime"
-#define VDSO_SYMBOL_TIME_NAME		"__vdso_time"
 
 #define VDSO_BAD_ADDR		(-1ul)
 #define VDSO_BAD_PFN		(-1ull)