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This patch adds zero compression for bss segments. One of the reasons

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for this is that currently, if you select no compression, the bss
segment of filo takes up 153K with just zeroes.  With this patch, it
always takes up a lar header + 1 byte.  I left the one byte so that
the checksum wouldn't be broken.

This patch could have taken out the calloc in the compression area,
but since it only uses compile-time memory, I decided to keep this
simple.

Myles

Signed-off-by: Myles Watson <myles@pel.cs.byu.edu>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>


git-svn-id: svn://coreboot.org/repository/coreboot-v3@601 f3766cd6-281f-0410-b1cd-43a5c92072e9
This commit is contained in:
Myles Watson 2008-02-15 19:27:13 +00:00
commit 2f5c48d0b2
5 changed files with 33 additions and 2 deletions
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include/lar.h
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@ -67,6 +67,7 @@ struct lar_header {
* 0 = no compression
* 1 = lzma
* 2 = nrv2b
* 3 = zeroes
*/
u32 compression;
u64 entry;