1 /* 2 * libfdt - Flat Device Tree manipulation 3 * Testcase for string references in dtc 4 * Copyright (C) 2006 David Gibson, IBM Corporation. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public License 8 * as published by the Free Software Foundation; either version 2.1 of 9 * the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, but 12 * WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 #include <stdlib.h> 21 #include <stdio.h> 22 #include <string.h> 23 #include <stdint.h> 24 25 #include <libfdt.h> 26 27 #include "tests.h" 28 #include "testdata.h" 29 30 static void check_ref(const void *fdt, int node, const char *checkpath) 31 { 32 const char *p; 33 int len; 34 35 p = fdt_getprop(fdt, node, "ref", &len); 36 if (!p) 37 FAIL("fdt_getprop(%d, \"ref\"): %s", node, fdt_strerror(len)); 38 if (!streq(p, checkpath)) 39 FAIL("'ref' in node at %d has value \"%s\" instead of \"%s\"", 40 node, p, checkpath); 41 42 p = fdt_getprop(fdt, node, "lref", &len); 43 if (!p) 44 FAIL("fdt_getprop(%d, \"lref\"): %s", node, fdt_strerror(len)); 45 if (!streq(p, checkpath)) 46 FAIL("'lref' in node at %d has value \"%s\" instead of \"%s\"", 47 node, p, checkpath); 48 } 49 50 static void check_rref(const void *fdt) 51 { 52 const char *p; 53 int len; 54 55 /* Check reference to root node */ 56 p = fdt_getprop(fdt, 0, "rref", &len); 57 if (!p) 58 FAIL("fdt_getprop(0, \"rref\"): %s", fdt_strerror(len)); 59 if (!streq(p, "/")) 60 FAIL("'rref' in root node has value \"%s\" instead of \"/\"", 61 p); 62 } 63 64 int main(int argc, char *argv[]) 65 { 66 void *fdt; 67 const char *p; 68 int len, multilen; 69 int n1, n2, n3, n4; 70 71 test_init(argc, argv); 72 fdt = load_blob_arg(argc, argv); 73 74 n1 = fdt_path_offset(fdt, "/node1"); 75 if (n1 < 0) 76 FAIL("fdt_path_offset(/node1): %s", fdt_strerror(n1)); 77 n2 = fdt_path_offset(fdt, "/node2"); 78 if (n2 < 0) 79 FAIL("fdt_path_offset(/node2): %s", fdt_strerror(n2)); 80 81 check_ref(fdt, n1, "/node2"); 82 check_ref(fdt, n2, "/node1"); 83 84 /* Check multiple reference */ 85 multilen = strlen("/node1") + strlen("/node2") + 2; 86 p = fdt_getprop(fdt, 0, "multiref", &len); 87 if (!p) 88 FAIL("fdt_getprop(0, \"multiref\"): %s", fdt_strerror(len)); 89 if (len != multilen) 90 FAIL("multiref has wrong length, %d instead of %d", 91 len, multilen); 92 if ((!streq(p, "/node1") || !streq(p + strlen("/node1") + 1, "/node2"))) 93 FAIL("multiref has wrong value"); 94 95 /* Check reference to nested nodes with common prefix */ 96 n3 = fdt_path_offset(fdt, "/foo/baz"); 97 if (n3 < 0) 98 FAIL("fdt_path_offset(/foo/baz): %s", fdt_strerror(n3)); 99 n4 = fdt_path_offset(fdt, "/foobar/baz"); 100 if (n4 < 0) 101 FAIL("fdt_path_offset(/foobar/baz): %s", fdt_strerror(n4)); 102 check_ref(fdt, n3, "/foobar/baz"); 103 check_ref(fdt, n4, "/foo/baz"); 104 105 check_rref(fdt); 106 107 PASS(); 108 } 109
