1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include "bootimg_utils.h" 30 31 #include <stdio.h> 32 #include <stdlib.h> 33 #include <string.h> 34 35 void bootimg_set_cmdline(boot_img_hdr* h, const char* cmdline) 36 { 37 strcpy((char*) h->cmdline, cmdline); 38 } 39 40 boot_img_hdr* mkbootimg(void* kernel, int64_t kernel_size, off_t kernel_offset, 41 void* ramdisk, int64_t ramdisk_size, off_t ramdisk_offset, 42 void* second, int64_t second_size, off_t second_offset, 43 size_t page_size, size_t base, off_t tags_offset, 44 int64_t* bootimg_size) 45 { 46 size_t page_mask = page_size - 1; 47 48 int64_t kernel_actual = (kernel_size + page_mask) & (~page_mask); 49 int64_t ramdisk_actual = (ramdisk_size + page_mask) & (~page_mask); 50 int64_t second_actual = (second_size + page_mask) & (~page_mask); 51 52 *bootimg_size = page_size + kernel_actual + ramdisk_actual + second_actual; 53 54 boot_img_hdr* hdr = reinterpret_cast<boot_img_hdr*>(calloc(*bootimg_size, 1)); 55 if (hdr == nullptr) { 56 return hdr; 57 } 58 59 memcpy(hdr->magic, BOOT_MAGIC, BOOT_MAGIC_SIZE); 60 61 hdr->kernel_size = kernel_size; 62 hdr->ramdisk_size = ramdisk_size; 63 hdr->second_size = second_size; 64 65 hdr->kernel_addr = base + kernel_offset; 66 hdr->ramdisk_addr = base + ramdisk_offset; 67 hdr->second_addr = base + second_offset; 68 hdr->tags_addr = base + tags_offset; 69 70 hdr->page_size = page_size; 71 72 memcpy(hdr->magic + page_size, kernel, kernel_size); 73 memcpy(hdr->magic + page_size + kernel_actual, ramdisk, ramdisk_size); 74 memcpy(hdr->magic + page_size + kernel_actual + ramdisk_actual, second, second_size); 75 76 return hdr; 77 } 78
