1/* 2 * libfdt - Flat Device Tree manipulation 3 * Basic testcase for read-only access 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 21#include <stdlib.h> 22#include <stdio.h> 23#include <string.h> 24#include <limits.h> 25#include <stdint.h> 26 27#include <libfdt.h> 28 29#include "tests.h" 30#include "testdata.h" 31 32int main(int argc, char *argv[]) 33{ 34 void *fdt, *fdt1, *fdt2, *fdt3; 35 char *buf; 36 int shuntsize; 37 int bufsize; 38 int err; 39 const char *inname; 40 char outname[PATH_MAX]; 41 42 test_init(argc, argv); 43 fdt = load_blob_arg(argc, argv); 44 inname = argv[1]; 45 46 shuntsize = ALIGN(fdt_totalsize(fdt) / 2, sizeof(uint64_t)); 47 bufsize = fdt_totalsize(fdt) + shuntsize; 48 buf = xmalloc(bufsize); 49 50 fdt1 = buf; 51 err = fdt_move(fdt, fdt1, bufsize); 52 if (err) 53 FAIL("Failed to move tree into new buffer: %s", 54 fdt_strerror(err)); 55 sprintf(outname, "moved.%s", inname); 56 save_blob(outname, fdt1); 57 58 fdt2 = buf + shuntsize; 59 err = fdt_move(fdt1, fdt2, bufsize-shuntsize); 60 if (err) 61 FAIL("Failed to shunt tree %d bytes: %s", 62 shuntsize, fdt_strerror(err)); 63 sprintf(outname, "shunted.%s", inname); 64 save_blob(outname, fdt2); 65 66 fdt3 = buf; 67 err = fdt_move(fdt2, fdt3, bufsize); 68 if (err) 69 FAIL("Failed to deshunt tree %d bytes: %s", 70 shuntsize, fdt_strerror(err)); 71 sprintf(outname, "deshunted.%s", inname); 72 save_blob(outname, fdt3); 73 74 PASS(); 75} 76