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treesource: Maintain phandle label/path on output

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The dts output will just output phandle integer values, but often the
necessary markers are present with path or label references. Improve the
output and maintain phandle label or path references when present in dts
output.

Signed-off-by: Rob Herring <robh@kernel.org>
Message-Id: <20210727183023.3212077-6-robh@kernel.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Rob Herring 2021-07-27 12:30:23 -06:00 committed by David Gibson
parent e33ce1d6a8
commit 37fd700685
3 changed files with 25 additions and 6 deletions
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3
tests/type-preservation.dt.yaml
View file

@ -13,8 +13,11 @@
int64: [!u64 [0x200000000]]
int64-array: [!u64 [0x100000000, 0x0]]
a-string-with-nulls: ["foo\0bar", "baz"]
a-phandle: [[!phandle 0x1]]
a-phandle-with-args: [[!phandle 0x1, 0x0, 0x1], [!phandle 0x1, 0x2, 0x3]]
subsubnode:
compatible: ["subsubnode1", "subsubnode"]
phandle: [[0x1]]
subsubsubnode:
compatible: ["subsubsubnode1", [0x1234], "subsubsubnode"]
...

3
tests/type-preservation.dts
View file

@ -16,9 +16,12 @@
int64 = /bits/ 64 <0x200000000>;
int64-array = /bits/ 64 <0x100000000 0x00> int64_array_label_end:;
a-string-with-nulls = "foo\0bar", "baz";
a-phandle = <&subsub1>;
a-phandle-with-args = <&subsub1 0x00 0x01>, <&subsub1 0x02 0x03>;
subsub1: subsubnode {
compatible = "subsubnode1", "subsubnode";
phandle = <0x01>;
subsubsub1: subsubsubnode {
compatible = "subsubsubnode1", <0x1234>, valuea: valueb: "subsubsubnode";

23
treesource.c
View file

@ -208,26 +208,39 @@ static void write_propval(FILE *f, struct property *prop)
size_t chunk_len = (m->next ? m->next->offset : len) - m->offset;
size_t data_len = type_marker_length(m) ? : len - m->offset;
const char *p = &prop->val.val[m->offset];
struct marker *m_phandle;
if (is_type_marker(m->type)) {
emit_type = m->type;
fprintf(f, " %s", delim_start[emit_type]);
} else if (m->type == LABEL)
fprintf(f, " %s:", m->ref);
else if (m->offset)
fputc(' ', f);
if (emit_type == TYPE_NONE) {
assert(chunk_len == 0);
if (emit_type == TYPE_NONE || chunk_len == 0)
continue;
}
switch(emit_type) {
case TYPE_UINT16:
write_propval_int(f, p, chunk_len, 2);
break;
case TYPE_UINT32:
m_phandle = prop->val.markers;
for_each_marker_of_type(m_phandle, REF_PHANDLE)
if (m->offset == m_phandle->offset)
break;
if (m_phandle) {
if (m_phandle->ref[0] == '/')
fprintf(f, "&{%s}", m_phandle->ref);
else
fprintf(f, "&%s", m_phandle->ref);
if (chunk_len > 4) {
fputc(' ', f);
write_propval_int(f, p + 4, chunk_len - 4, 4);
}
} else {
write_propval_int(f, p, chunk_len, 4);
}
break;
case TYPE_UINT64:
write_propval_int(f, p, chunk_len, 8);