Browse Source
Greg Kurz added a trivial test of the -I fs mode recently, which was previously basically untested. This is an oversight, since we recently had a bug which completely broke it. This replaces Greg's test with a more thorough test of -I fs mode. We use a test helper to create the familiar test_tree1 in "fs" form, then use dtc -I fs to process it, and check that the results match what they should. We only check the content in -I fs -O dtb mode, since that's simplest, but we do run -I fs -O dts mode as well to make sure it doesn't blow up (the aforementioned bug caused just such a blow up, specific to -O dts mode, for example). Signed-off-by: David Gibson <david@gibson.dropbear.id.au>main
David Gibson
6 years ago
4 changed files with 182 additions and 5 deletions
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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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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public License |
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* as published by the Free Software Foundation; either version 2.1 of |
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* the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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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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