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dtc: Test and fix conversion to/from old dtb versions

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This patch adds testcases which test dtc when used to convert between
different dtb versions.  These tests uncovered a couple of bugs
handling old dtb versions, which are also fixed.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson 2008-02-28 20:55:37 +11:00 • committed by Jon Loeliger
parent d028e84140
commit a266e5c1e1
2 changed files with 19 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

14
flattree.c
View file

@ -410,7 +410,7 @@ void dt_to_blob(FILE *f, struct boot_info *bi, int version,
* the reserve buffer, add the reserve map terminating zeroes,
* the device tree itself, and finally the strings.
*/
blob = data_append_data(blob, &fdt, sizeof(fdt));
blob = data_append_data(blob, &fdt, vi->hdr_size);
blob = data_append_align(blob, 8);
blob = data_merge(blob, reservebuf);
blob = data_append_zeroes(blob, sizeof(struct fdt_reserve_entry));
@ -809,7 +809,7 @@ static struct node *unflatten_tree(struct inbuf *dtbuf,
struct boot_info *dt_from_blob(FILE *f)
{
u32 magic, totalsize, version, size_str, size_dt;
u32 magic, totalsize, version, size_dt;
u32 off_dt, off_str, off_mem_rsvmap;
int rc;
char *blob;
@ -889,11 +889,13 @@ struct boot_info *dt_from_blob(FILE *f)
if (off_str > totalsize)
die("String table offset exceeds total size\n");
size_str = -1;
if (version >= 3) {
size_str = be32_to_cpu(fdt->size_dt_strings);
u32 size_str = be32_to_cpu(fdt->size_dt_strings);
if (off_str+size_str > totalsize)
die("String table extends past total size\n");
inbuf_init(&strbuf, blob + off_str, blob + off_str + size_str);
} else {
inbuf_init(&strbuf, blob + off_str, blob + totalsize);
}
if (version >= 17) {
@ -911,10 +913,6 @@ struct boot_info *dt_from_blob(FILE *f)
inbuf_init(&memresvbuf,
blob + off_mem_rsvmap, blob + totalsize);
inbuf_init(&dtbuf, blob + off_dt, blob + totalsize);
if (size_str >= 0)
inbuf_init(&strbuf, blob + off_str, blob + off_str + size_str);
else
inbuf_init(&strbuf, blob + off_str, blob + totalsize);
reservelist = flat_read_mem_reserve(&memresvbuf);

13
tests/run_tests.sh
View file

@ -172,6 +172,19 @@ dtc_tests () {
run_test dtbs_equal_ordered $tree odts_$tree.test.dtb
done
# Check version conversions
for tree in test_tree1.dtb ; do
for aver in 1 2 3 16 17; do
atree="ov${aver}_$tree.test.dtb"
run_test dtc.sh -I dtb -O dtb -V$aver -o $atree $tree
for bver in 16 17; do
btree="ov${bver}_$atree"
run_test dtc.sh -I dtb -O dtb -V$bver -o $btree $atree
run_test dtbs_equal_ordered $btree $tree
done
done
done
# Check some checks
run_test dtc-checkfails.sh duplicate_node_names -- -I dts -O dtb dup-nodename.dts
run_test dtc-checkfails.sh duplicate_property_names -- -I dts -O dtb dup-propname.dts