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Subject[patch] x86_64-enable-large-bzImage.patch
From: Ingo Molnar <mingo@elte.hu>

enable large bzImages on x86_64. (fix is from x86's build.c) Using this
patch i have successfully built and booted an allyesconfig 13MB+ bzImage
on x86_64 too:

$ size64 vmlinux
text data bss dec hex filename
23444831 8202642 3439360 35086833 21761f1 vmlinux

-rw-rw-r-- 1 mingo mingo 13121740 Apr 19 09:32 arch/x86_64/boot/bzImage

Signed-off-by: Ingo Molnar <mingo@elte.hu>

----
arch/x86_64/boot/tools/build.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
Index: linux/arch/x86_64/boot/tools/build.c
===================================================================
--- linux.orig/arch/x86_64/boot/tools/build.c
+++ linux/arch/x86_64/boot/tools/build.c
@@ -149,10 +150,8 @@ int main(int argc, char ** argv)
sz = sb.st_size;
fprintf (stderr, "System is %d kB\n", sz/1024);
sys_size = (sz + 15) / 16;
- /* 0x40000*16 = 4.0 MB, reasonable estimate for the current maximum */
- if (sys_size > (is_big_kernel ? 0x40000 : DEF_SYSSIZE))
- die("System is too big. Try using %smodules.",
- is_big_kernel ? "" : "bzImage or ");
+ if (!is_big_kernel && sys_size > DEF_SYSSIZE)
+ die("System is too big. Try using bzImage or modules.");
while (sz > 0) {
int l, n;

-
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