[][Add tool to support embed dm-verity bootargs into fdt]
[Description]
Add tool to support embed dm-verity bootargs into fdt
[Release-log]
N/A
Change-Id: I65ef262484ecc48efc513b0ef1a0cb96e5440011
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/5850557
diff --git a/tools/fdt-patch-dm-verify/src/libfdt/fdt_strerror.c b/tools/fdt-patch-dm-verify/src/libfdt/fdt_strerror.c
new file mode 100644
index 0000000..768db66
--- /dev/null
+++ b/tools/fdt-patch-dm-verify/src/libfdt/fdt_strerror.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+/*
+ * libfdt - Flat Device Tree manipulation
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "libfdt_env.h"
+
+#include <fdt.h>
+#include <libfdt.h>
+
+#include "libfdt_internal.h"
+
+struct fdt_errtabent {
+ const char *str;
+};
+
+#define FDT_ERRTABENT(val) \
+ [(val)] = { .str = #val, }
+
+static struct fdt_errtabent fdt_errtable[] = {
+ FDT_ERRTABENT(FDT_ERR_NOTFOUND),
+ FDT_ERRTABENT(FDT_ERR_EXISTS),
+ FDT_ERRTABENT(FDT_ERR_NOSPACE),
+
+ FDT_ERRTABENT(FDT_ERR_BADOFFSET),
+ FDT_ERRTABENT(FDT_ERR_BADPATH),
+ FDT_ERRTABENT(FDT_ERR_BADPHANDLE),
+ FDT_ERRTABENT(FDT_ERR_BADSTATE),
+
+ FDT_ERRTABENT(FDT_ERR_TRUNCATED),
+ FDT_ERRTABENT(FDT_ERR_BADMAGIC),
+ FDT_ERRTABENT(FDT_ERR_BADVERSION),
+ FDT_ERRTABENT(FDT_ERR_BADSTRUCTURE),
+ FDT_ERRTABENT(FDT_ERR_BADLAYOUT),
+ FDT_ERRTABENT(FDT_ERR_INTERNAL),
+ FDT_ERRTABENT(FDT_ERR_BADNCELLS),
+ FDT_ERRTABENT(FDT_ERR_BADVALUE),
+ FDT_ERRTABENT(FDT_ERR_BADOVERLAY),
+ FDT_ERRTABENT(FDT_ERR_NOPHANDLES),
+ FDT_ERRTABENT(FDT_ERR_BADFLAGS),
+};
+#define FDT_ERRTABSIZE (sizeof(fdt_errtable) / sizeof(fdt_errtable[0]))
+
+const char *fdt_strerror(int errval)
+{
+ if (errval > 0)
+ return "<valid offset/length>";
+ else if (errval == 0)
+ return "<no error>";
+ else if (errval > -FDT_ERRTABSIZE) {
+ const char *s = fdt_errtable[-errval].str;
+
+ if (s)
+ return s;
+ }
+
+ return "<unknown error>";
+}