[coreboot-gerrit] Patch set updated for coreboot: cbfstool: Fix broken alignment because of flashmap

[Werner Zeh (werner.zeh@siemens.com)]

Werner Zeh (werner.zeh at siemens.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13417

-gerrit

commit 7468d7586efccfa8327f6dcae99a753d5c2071c2
Author: Werner Zeh <werner.zeh at siemens.com>
Date:   Mon Jan 25 12:47:20 2016 +0100

    cbfstool: Fix broken alignment because of flashmap
    
    With the introduction of flashmap cbfs alignment of files gets
    broken because flashmap is located at the beginning of the flash
    and cbfstool didn't take care about that offset.
    This commit fixes the alignment in cbfs.
    
    Change-Id: Idebb86d4c691b49a351a402ef79c62d31622c773
    Signed-off-by: Werner Zeh <werner.zeh at siemens.com>
---
 util/cbfstool/cbfs_image.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/util/cbfstool/cbfs_image.c b/util/cbfstool/cbfs_image.c
index 2d7a6f0..95b2db7 100644
--- a/util/cbfstool/cbfs_image.c
+++ b/util/cbfstool/cbfs_image.c
@@ -2,6 +2,7 @@
  * CBFS Image Manipulation
  *
  * Copyright (C) 2013 The Chromium OS Authors. All rights reserved.
+ * Copyright (C) 2016 Siemens AG. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -1410,6 +1411,16 @@ static int is_in_range(size_t start, size_t end, size_t metadata_size,
 	return (offset >= start + metadata_size && offset + size <= end);
 }
 
+static size_t absolute_align(const struct cbfs_image *image, size_t val,
+				size_t align)
+{
+	const size_t region_offset = buffer_offset(&image->buffer);
+	/* To perform alignment on absolute address, take the region offset */
+	/* of the image into account.					    */
+	return align_up(val + region_offset, align) - region_offset;
+
+}
+
 int32_t cbfs_locate_entry(struct cbfs_image *image, size_t size,
 			  size_t page_size, size_t align, size_t metadata_size)
 {
@@ -1474,7 +1485,7 @@ int32_t cbfs_locate_entry(struct cbfs_image *image, size_t size,
 		if (addr_next - addr < need_len)
 			continue;
 
-		offset = align_up(addr + metadata_size, align);
+		offset = absolute_align(image, addr + metadata_size, align);
 		if (is_in_same_page(offset, size, page_size) &&
 		    is_in_range(addr, addr_next, metadata_size, offset, size)) {
 			DEBUG("cbfs_locate_entry: FIT (PAGE1).");
@@ -1482,7 +1493,7 @@ int32_t cbfs_locate_entry(struct cbfs_image *image, size_t size,
 		}
 
 		addr2 = align_up(addr, page_size);
-		offset = align_up(addr2, align);
+		offset = absolute_align(image, addr2, align);
 		if (is_in_range(addr, addr_next, metadata_size, offset, size)) {
 			DEBUG("cbfs_locate_entry: OVERLAP (PAGE2).");
 			return offset;
@@ -1492,7 +1503,7 @@ int32_t cbfs_locate_entry(struct cbfs_image *image, size_t size,
 		 * definitely provide the space for header. */
 		assert(page_size >= metadata_size);
 		addr3 = addr2 + page_size;
-		offset = align_up(addr3, align);
+		offset = absolute_align(image, addr3, align);
 		if (is_in_range(addr, addr_next, metadata_size, offset, size)) {
 			DEBUG("cbfs_locate_entry: OVERLAP+ (PAGE3).");
 			return offset;