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dtc: Add an option to generate __local_fixups__ and __fixups__

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This records detailed usage of labels in a dtb. This is needed in
overlays (and enabled implicitly for these). For ordinary device trees
it can be used to restore labels when compiling back to dts format.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Message-Id: <20230523080941.419330-1-u.kleine-koenig@pengutronix.de>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Uwe Kleine-König 2023-05-23 10:09:41 +02:00 • committed by David Gibson
parent e8364666d5
commit 589d8c7653
2 changed files with 21 additions and 1 deletions
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8
dtc.c
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@ -47,7 +47,7 @@ static void fill_fullpaths(struct node *tree, const char *prefix)
/* Usage related data. */
static const char usage_synopsis[] = "dtc [options] <input file>";
static const char usage_short_opts[] = "qI:O:o:V:d:R:S:p:a:fb:i:H:sW:E:@AThv";
static const char usage_short_opts[] = "qI:O:o:V:d:R:S:p:a:fb:i:H:sW:E:@LAThv";
static struct option const usage_long_opts[] = {
{"quiet", no_argument, NULL, 'q'},
{"in-format", a_argument, NULL, 'I'},
@ -67,6 +67,7 @@ static struct option const usage_long_opts[] = {
{"warning", a_argument, NULL, 'W'},
{"error", a_argument, NULL, 'E'},
{"symbols", no_argument, NULL, '@'},
{"local-fixups", no_argument, NULL, 'L'},
{"auto-alias", no_argument, NULL, 'A'},
{"annotate", no_argument, NULL, 'T'},
{"help", no_argument, NULL, 'h'},
@ -252,6 +253,11 @@ int main(int argc, char *argv[])
case '@':
generate_symbols = 1;
break;
case 'L':
generate_fixups = 1;
break;
case 'A':
auto_label_aliases = 1;
break;