x86 vDSO: absolute relocs

This updates the exceptions for absolute relocs for the new symbol name
convention used for symbols extracted from the vDSO images.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

arch/x86/boot/compressed/relocs.c

@@ -27,11 +27,6 @@ static unsigned long *relocs;
  * absolute relocations present w.r.t these symbols.
  */
 static const char* safe_abs_relocs[] = {
-		"__kernel_vsyscall",
-		"__kernel_rt_sigreturn",
-		"__kernel_sigreturn",
-		"SYSENTER_RETURN",
-		"VDSO_NOTE_MASK",
 		"xen_irq_disable_direct_reloc",
 		"xen_save_fl_direct_reloc",
 };
@@ -45,6 +40,8 @@ static int is_safe_abs_reloc(const char* sym_name)
 			/* Match found */
 			return 1;
 	}
+	if (strncmp(sym_name, "VDSO", 4) == 0)
+		return 1;
 	if (strncmp(sym_name, "__crc_", 6) == 0)
 		return 1;
 	return 0;