1 files changed, 48 insertions, 0 deletions
diff --git a/arch/sandbox/cpu/state.c b/arch/sandbox/cpu/state.c
index e0d01125bb..fcc4a337e5 100644
--- a/arch/sandbox/cpu/state.c
+++ b/arch/sandbox/cpu/state.c
@@ -396,6 +396,54 @@ bool autoboot_set_keyed(bool autoboot_keyed)
 	return old_val;
 }
 
+int state_get_rel_filename(const char *rel_path, char *buf, int size)
+{
+	struct sandbox_state *state = state_get_current();
+	int rel_len, prog_len;
+	char *p;
+	int len;
+
+	rel_len = strlen(rel_path);
+	p = strrchr(state->argv[0], '/');
+	prog_len = p ? p - state->argv[0] : 0;
+
+	/* allow space for a / and a terminator */
+	len = prog_len + 1 + rel_len + 1;
+	if (len > size)
+		return -ENOSPC;
+	strncpy(buf, state->argv[0], prog_len);
+	buf[prog_len] = '/';
+	strcpy(buf + prog_len + 1, rel_path);
+
+	return len;
+}
+
+int state_load_other_fdt(const char **bufp, int *sizep)
+{
+	struct sandbox_state *state = state_get_current();
+	char fname[256];
+	int len, ret;
+
+	/* load the file if needed */
+	if (!state->other_fdt_buf) {
+		len = state_get_rel_filename("arch/sandbox/dts/other.dtb",
+					     fname, sizeof(fname));
+		if (len < 0)
+			return len;
+
+		ret = os_read_file(fname, &state->other_fdt_buf,
+				   &state->other_size);
+		if (ret) {
+			log_err("Cannot read file '%s'\n", fname);
+			return ret;
+		}
+	}
+	*bufp = state->other_fdt_buf;
+	*sizep = state->other_size;
+
+	return 0;
+}
+
 int state_init(void)
 {
 	state = &main_state;