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| author | Yinghai Lu <yinghai@kernel.org> | 2009-03-09 01:15:57 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-03-14 17:23:47 -0700 |
| commit | 2bd2753ff46346543ab92e80df9d96366e21baa5 (patch) | |
| tree | 4a83c0b4012abe33a95715d9890bf07f81a3d547 /arch/x86/kernel/vmlinux_32.lds.S | |
| parent | 796216a57fe45c04adc35bda1f0782efec78a713 (diff) | |
| download | op-kernel-dev-2bd2753ff46346543ab92e80df9d96366e21baa5.zip op-kernel-dev-2bd2753ff46346543ab92e80df9d96366e21baa5.tar.gz | |
x86: put initial_pg_tables into .bss
Impact: makes vmlinux section information more useful
Don't use ram after _end blindly for pagetables. aka init pages is before _end
put those pg table into .bss
[Adapted to use brk segment - Jeremy]
v2: keep initial page table up to 512M only.
v4: put initial page tables just before _end
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/kernel/vmlinux_32.lds.S')
| -rw-r--r-- | arch/x86/kernel/vmlinux_32.lds.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S index a1f28b8..98424f3 100644 --- a/arch/x86/kernel/vmlinux_32.lds.S +++ b/arch/x86/kernel/vmlinux_32.lds.S @@ -210,6 +210,12 @@ SECTIONS DWARF_DEBUG } +/* + * Build-time check on the image size: + */ +ASSERT((_end - LOAD_OFFSET <= KERNEL_IMAGE_SIZE), + "kernel image bigger than KERNEL_IMAGE_SIZE") + #ifdef CONFIG_KEXEC /* Link time checks */ #include <asm/kexec.h> |
