New patch to review for coreboot: cbfstool: keep cbfs master header pointer

[Aaron Durbin]

Aaron Durbin ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/12789

-gerrit

commit f11aefb2f22bf79f7db6fafa4bef9975bf062cb5
Author: Patrick Georgi 
Date:   Fri Nov 20 23:23:44 2015 +0100

cbfstool: keep cbfs master header pointer

Adding new files overwrote the header with the empty file (ie 0xff),
    so carve out some space.

BUG=chromium:445938
    BRANCH=none
    TEST=none

Change-Id: I91c292df381c2bac41c6cb9dda74dae99defd81d
    Signed-off-by: Patrick Georgi 
---
 util/cbfstool/cbfs_image.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/util/cbfstool/cbfs_image.c b/util/cbfstool/cbfs_image.c
index 3820c40..2d7a6f0 100644
--- a/util/cbfstool/cbfs_image.c
+++ b/util/cbfstool/cbfs_image.c
@@ -523,6 +523,11 @@ static int cbfs_add_entry_at(struct cbfs_image *image,
    }

len = addr_next - addr - min_entry_size;
+	/* keep space for master header pointer */
+	if ((void *)entry + min_entry_size + len > buffer_get(&image->buffer) +
+		buffer_size(&image->buffer) - sizeof(int32_t)) {
+		len -= sizeof(int32_t);
+	}
    cbfs_create_empty_entry(entry, CBFS_COMPONENT_NULL, len, "");
    if (verbose > 1) cbfs_print_entry_info(image, entry, stderr);
    return 0;