[PATCH] scripts: imx: add support for additional hab Blocks

[Denis Osterland-Heim]

This allows to specifiy additional signed blocks
in the format `offset+size at address` within the imximg.

It is needed by the uuu tool, which loads the image different to
the imx-usb-loader. It loads the DCD always to 0x910000 in the OCRAM.
So this area have to be signed as well.

In my case this needs `hab_blocks 0x42c+0x1f0 at 0x910000`.

It supports to remove quotes to support Kconfig variable here.

Signed-off-by: Denis Osterland-Heim <denis.osterland at diehl.com>
---
 scripts/imx/imx.c | 52 +++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 50 insertions(+), 2 deletions(-)

diff --git a/scripts/imx/imx.c b/scripts/imx/imx.c
index 6b8dabd04..ce18778f5 100644
--- a/scripts/imx/imx.c
+++ b/scripts/imx/imx.c
@@ -328,6 +328,7 @@ static int do_hab_blocks(struct config_data *data, int argc, char *argv[])
 {
 char *str;
 int ret;
+int i;
 uint32_t signed_size = data->load_size;
 uint32_t offset = data->image_ivt_offset;

@@ -352,7 +353,7 @@ static int do_hab_blocks(struct config_data *data, int argc, char *argv[])
 }

 if (signed_size > 0) {
-ret = asprintf(&str, "Blocks = 0x%08x 0x%08x 0x%08x \"%s\"\n",
+ret = asprintf(&str, "Blocks = 0x%08x 0x%08x 0x%08x \"%s\"",
 data->image_load_addr + data->image_ivt_offset, offset,
 signed_size - data->image_ivt_offset, data->outfile);
 } else {
@@ -365,10 +366,57 @@ static int do_hab_blocks(struct config_data *data, int argc, char *argv[])
 return -ENOMEM;

 ret = hab_add_str(data, str);
+free(str);
 if (ret)
 return ret;

-return 0;
+for (i = 1; i < argc; i++) {
+uint32_t addr;
+uint32_t off;
+uint32_t size;
+char *b;
+char *e;
+
+b = argv[i];
+if (*b == '"') // remove leading qoute
+b++;
+if (!*b || *b == '"')
+continue; // skip if empty
+
+off = strtoul(b, &e, 0);
+if (*e != '+') {
+fprintf(stderr, "failed to find '+' in '%s'\n", b);
+fprintf(stderr, "format off+size at addr expected, but given: %s\n", argv[i]);
+return -EINVAL;
+}
+
+b = e + 1;
+size = strtoul(b, &e, 0);
+if (*e != '@') {
+fprintf(stderr, "failed to find '@' in '%s'\n", b);
+fprintf(stderr, "format off+size at addr expected, but given: %s\n", argv[i]);
+return -EINVAL;
+}
+
+b = e + 1;
+addr = strtoul(b, &e, 0);
+if (*e && *e != '"') { // ignore trailing qoute
+fprintf(stderr, "unexpected char at the end: '%c'\n", *e);
+fprintf(stderr, "format off+size at addr expected, but given: %s\n", argv[i]);
+return -EINVAL;
+}
+
+ret = asprintf(&str, ", 0x%08x 0x%08x 0x%08x \"%s\"", addr, off, size, data->outfile);
+if (ret < 0)
+return -ENOMEM;
+
+ret = hab_add_str(data, str);
+free(str);
+if (ret)
+return ret;
+}
+
+return hab_add_str(data, "\n");
 }

 static int do_hab_encrypt(struct config_data *data, int argc, char *argv[])
--
2.31.0

Diehl Connectivity Solutions GmbH
Geschäftsführung: Horst Leonberger
Sitz der Gesellschaft: Nürnberg - Registergericht: Amtsgericht
Nürnberg: HRB 32315

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