x86: check vmlinux limits, 64-bit

these build-time and link-time checks would have prevented the vmlinux size regression. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-02-21 13:45:16 +01:00
parent 223ac2f42d
commit b4e0409a36
3 changed files with 19 additions and 4 deletions
--- a/arch/x86/kernel/vmlinux_64.lds.S
+++ b/arch/x86/kernel/vmlinux_64.lds.S
@ -247,3 +247,9 @@ SECTIONS

  DWARF_DEBUG
 }
+
+/*
+ * Build-time check on the image size:
+ */
+ASSERT((_end - _text <= KERNEL_IMAGE_SIZE),
+	"kernel image bigger than KERNEL_IMAGE_SIZE")