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-rw-r--r--tests/overlay_bad_fixup.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/tests/overlay_bad_fixup.c b/tests/overlay_bad_fixup.c
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+++ b/tests/overlay_bad_fixup.c
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+/*
+ * libfdt - Flat Device Tree manipulation
+ * Testcase for DT overlays()
+ * Copyright (C) 2016 Free Electrons
+ * Copyright (C) 2016 NextThing Co.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdio.h>
+
+#include <libfdt.h>
+
+#include "tests.h"
+
+#define CHECK(code, expected) \
+ { \
+ err = (code); \
+ if (err != expected) \
+ FAIL(#code ": %s", fdt_strerror(err)); \
+ }
+
+/* 4k ought to be enough for anybody */
+#define FDT_COPY_SIZE (4 * 1024)
+
+static void *open_dt(char *path)
+{
+ void *dt, *copy;
+ int err;
+
+ dt = load_blob(path);
+ copy = xmalloc(FDT_COPY_SIZE);
+
+ /*
+ * Resize our DTs to 4k so that we have room to operate on
+ */
+ CHECK(fdt_open_into(dt, copy, FDT_COPY_SIZE), 0);
+
+ return copy;
+}
+
+int main(int argc, char *argv[])
+{
+ void *fdt_base, *fdt_overlay;
+ int err;
+
+ test_init(argc, argv);
+ if (argc != 3)
+ CONFIG("Usage: %s <base dtb> <overlay dtb>", argv[0]);
+
+ fdt_base = open_dt(argv[1]);
+ fdt_overlay = open_dt(argv[2]);
+
+ /* Apply the overlay */
+ CHECK(fdt_overlay_apply(fdt_base, fdt_overlay), -FDT_ERR_BADOVERLAY);
+
+ PASS();
+}