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Code Issues Releases Wiki Activity

Fix verification with sparse layouts

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The full verification step was not accounting for sparse layouts.
Instead of the old contents, combine_image_by_layout() implicitly
assumed the new contents for unspecified regions.

Change-Id: I44e0cea621f2a3d4dc70fa7e93c52ed95e54014a
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/30370
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
This commit is contained in:
Nico Huber
2018-12-22 00:53:14 +01:00
parent 0cacb11c62
commit 3d7b1e3b5c
3 changed files with 34 additions and 9 deletions
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24
flashrom.c
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@ -2430,17 +2430,23 @@ static void combine_image_by_layout(const struct flashctx *const flashctx,
uint8_t *const newcontents, const uint8_t *const oldcontents)
{
const struct flashrom_layout *const layout = get_layout(flashctx);
const struct romentry *included;
chipoff_t start = 0;
size_t i;
for (i = 0; i < layout->num_entries; ++i) {
if (layout->entries[i].included)
continue;
const chipoff_t region_start = layout->entries[i].start;
const chipsize_t region_len = layout->entries[i].end - layout->entries[i].start + 1;
memcpy(newcontents + region_start, oldcontents + region_start, region_len);
while ((included = layout_next_included_region(layout, start))) {
if (included->start > start) {
/* copy everything up to the start of this included region */
memcpy(newcontents + start, oldcontents + start, included->start - start);
}
/* skip this included region */
start = included->end + 1;
if (start == 0)
return;
}
/* copy the rest of the chip */
const chipsize_t copy_len = flashctx->chip->total_size * 1024 - start;
memcpy(newcontents + start, oldcontents + start, copy_len);
}
/**