1 /* 2 * Testcase for dtc expression support 3 * 4 * Copyright (C) 2008 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 21 #include <stdlib.h> 22 #include <stdio.h> 23 #include <string.h> 24 #include <stdint.h> 25 #include <errno.h> 26 27 28 #include <libfdt.h> 29 30 #include "tests.h" 31 #include "testdata.h" 32 33 struct test_expr { 34 const char *expr; 35 uint32_t result; 36 } expr_table[] = { 37 #define TE(expr) { #expr, (expr) } 38 TE(0xdeadbeef), 39 TE(-0x21524111), 40 TE(1+1), 41 TE(2*3), 42 TE(4/2), 43 TE(10/3), 44 TE(19%4), 45 TE(1 << 13), 46 TE(0x1000 >> 4), 47 TE(3*2+1), TE(3*(2+1)), 48 TE(1+2*3), TE((1+2)*3), 49 TE(1 < 2), TE(2 < 1), TE(1 < 1), 50 TE(1 <= 2), TE(2 <= 1), TE(1 <= 1), 51 TE(1 > 2), TE(2 > 1), TE(1 > 1), 52 TE(1 >= 2), TE(2 >= 1), TE(1 >= 1), 53 TE(1 == 1), TE(1 == 2), 54 TE(1 != 1), TE(1 != 2), 55 TE(0xabcdabcd & 0xffff0000), 56 TE(0xdead4110 ^ 0xf0f0f0f0), 57 TE(0xabcd0000 | 0x0000abcd), 58 TE(~0x21524110), 59 TE(~~0xdeadbeef), 60 TE(0 && 0), TE(17 && 0), TE(0 && 17), TE(17 && 17), 61 TE(0 || 0), TE(17 || 0), TE(0 || 17), TE(17 || 17), 62 TE(!0), TE(!1), TE(!17), TE(!!0), TE(!!17), 63 TE(0 ? 17 : 39), TE(1 ? 17 : 39), TE(17 ? 0xdeadbeef : 0xabcd1234), 64 TE(11 * 257 * 1321517ULL), 65 TE(123456790 - 4/2 + 17%4), 66 }; 67 68 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) 69 70 int main(int argc, char *argv[]) 71 { 72 void *fdt; 73 const uint32_t *res; 74 int reslen; 75 int i; 76 77 test_init(argc, argv); 78 79 if ((argc == 3) && (strcmp(argv[1], "-g") == 0)) { 80 FILE *f = fopen(argv[2], "w"); 81 82 if (!f) 83 FAIL("Couldn't open \"%s\" for output: %s\n", 84 argv[2], strerror(errno)); 85 86 fprintf(f, "/dts-v1/;\n"); 87 fprintf(f, "/ {\n"); 88 fprintf(f, "\texpressions = <\n"); 89 for (i = 0; i < ARRAY_SIZE(expr_table); i++) 90 fprintf(f, "\t\t(%s)\n", expr_table[i].expr); 91 fprintf(f, "\t>;\n"); 92 fprintf(f, "};\n"); 93 fclose(f); 94 } else { 95 fdt = load_blob_arg(argc, argv); 96 97 res = fdt_getprop(fdt, 0, "expressions", &reslen); 98 99 if (!res) 100 FAIL("Error retreiving expression results: %s\n", 101 fdt_strerror(reslen)); 102 103 if (reslen != (ARRAY_SIZE(expr_table) * sizeof(uint32_t))) 104 FAIL("Unexpected length of results %d instead of %zd\n", 105 reslen, ARRAY_SIZE(expr_table) * sizeof(uint32_t)); 106 107 for (i = 0; i < ARRAY_SIZE(expr_table); i++) 108 if (fdt32_to_cpu(res[i]) != expr_table[i].result) 109 FAIL("Incorrect result for expression \"%s\"," 110 " 0x%x instead of 0x%x\n", 111 expr_table[i].expr, fdt32_to_cpu(res[i]), 112 expr_table[i].result); 113 } 114 115 PASS(); 116 } 117
