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156 lines
2.8 KiB
156 lines
2.8 KiB
// SPDX-License-Identifier: LGPL-2.1-or-later
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/*
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* libfdt - Flat Device Tree manipulation
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* Testcase/tool constructing an fs tree for further test
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* Copyright (C) 2018 David Gibson, Red Hat Inc.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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#include <stdint.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <libfdt.h>
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#include "tests.h"
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#include "testdata.h"
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static void start_dir(const char *name)
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{
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int rc;
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rc = mkdir(name, 0777);
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if (rc != 0)
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FAIL("mkdir(\"%s\"): %s", name, strerror(errno));
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rc = chdir(name);
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if (rc != 0)
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FAIL("chdir(\"%s\"): %s", name, strerror(errno));
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}
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static void end_dir(void)
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{
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int rc;
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rc = chdir("..");
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if (rc != 0)
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FAIL("chdir(..): %s", strerror(errno));
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}
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static void mkfile(const char *name, void *data, size_t len)
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{
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int fd;
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int rc;
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fd = open(name, O_WRONLY|O_CREAT, 0666);
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if (fd < 0)
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FAIL("open(\"%s\"): %s", name, strerror(errno));
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rc = write(fd, data, len);
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if (rc < 0)
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FAIL("write(\"%s\"): %s", name, strerror(errno));
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if (rc != len)
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FAIL("write(\"%s\"): short write", name);
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rc = close(fd);
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if (rc != 0)
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FAIL("close(\"%s\"): %s", name, strerror(errno));
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}
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#define mkfile_str(name, s) \
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do { \
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char str[] = s; \
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mkfile((name), str, sizeof(str)); \
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} while (0)
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static void mkfile_u32(const char *name, uint32_t val)
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{
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val = cpu_to_fdt32(val);
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mkfile(name, &val, sizeof(val));
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}
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static void mkfile_u64(const char *name, uint64_t val)
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{
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val = cpu_to_fdt64(val);
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mkfile(name, &val, sizeof(val));
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}
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int main(int argc, char *argv[])
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{
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const char *base;
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test_init(argc, argv);
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if (argc != 2)
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CONFIG("Usage: %s <path>", argv[0]);
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base = argv[1];
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start_dir(base);
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mkfile_str("compatible", "test_tree1");
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mkfile_u32("prop-int", TEST_VALUE_1);
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mkfile_u64("prop-int64", 0xdeadbeef01abcdefULL);
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mkfile_str("prop-str", "hello world");
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mkfile_u32("#address-cells", 1);
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mkfile_u32("#size-cells", 0);
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{
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start_dir("subnode@1");
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mkfile_str("compatible", "subnode1");
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mkfile_u32("reg", 1);
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mkfile_u32("prop-int", TEST_VALUE_1);
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{
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start_dir("subsubnode");
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mkfile_str("compatible", "subsubnode1\0subsubnode");
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mkfile_str("placeholder", "this is a placeholder string\0string2");
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mkfile_u32("prop-int", TEST_VALUE_1);
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end_dir();
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}
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{
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start_dir("ss1");
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end_dir();
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}
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end_dir();
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}
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{
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start_dir("subnode@2");
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mkfile_u32("reg", 2);
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mkfile_u32("linux,phandle", 0x2000);
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mkfile_u32("prop-int", TEST_VALUE_2);
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mkfile_u32("#address-cells", 1);
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mkfile_u32("#size-cells", 0);
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{
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start_dir("subsubnode@0");
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mkfile_u32("reg", 0);
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mkfile_u32("phandle", 0x2001);
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mkfile_str("compatible", "subsubnode2\0subsubnode");
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mkfile_u32("prop-int", TEST_VALUE_2);
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end_dir();
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}
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{
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start_dir("ss2");
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end_dir();
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}
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end_dir();
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}
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PASS();
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}
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