1/* 2 * Copyright (c) 2011 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28#include <string.h> 29#include <mach-o/loader.h> 30#include <sys/types.h> 31 32#define DEBUG_ASSERT_COMPONENT_NAME_STRING "kxld" 33#include <AssertMacros.h> 34 35#include "kxld_util.h" 36#include "kxld_versionmin.h" 37 38/******************************************************************************* 39*******************************************************************************/ 40void 41kxld_versionmin_init_from_macho(KXLDversionmin *versionmin, struct version_min_command *src) 42{ 43 check(versionmin); 44 check(src); 45 check((src->cmd == LC_VERSION_MIN_MACOSX) || (src->cmd == LC_VERSION_MIN_IPHONEOS)); 46 47 switch (src->cmd) { 48 case LC_VERSION_MIN_MACOSX: 49 versionmin->platform = kKxldVersionMinMacOSX; 50 break; 51 case LC_VERSION_MIN_IPHONEOS: 52 versionmin->platform = kKxldVersionMiniPhoneOS; 53 break; 54 } 55 56 versionmin->version = src->version; 57 versionmin->has_versionmin = TRUE; 58} 59 60/******************************************************************************* 61*******************************************************************************/ 62void 63kxld_versionmin_clear(KXLDversionmin *versionmin) 64{ 65 bzero(versionmin, sizeof(*versionmin)); 66} 67 68/******************************************************************************* 69*******************************************************************************/ 70u_long 71kxld_versionmin_get_macho_header_size(void) 72{ 73 return sizeof(struct version_min_command); 74} 75 76/******************************************************************************* 77*******************************************************************************/ 78kern_return_t 79kxld_versionmin_export_macho(const KXLDversionmin *versionmin, u_char *buf, 80 u_long *header_offset, u_long header_size) 81{ 82 kern_return_t rval = KERN_FAILURE; 83 struct version_min_command *versionminhdr = NULL; 84 85 check(versionmin); 86 check(buf); 87 check(header_offset); 88 89 require_action(sizeof(*versionminhdr) <= header_size - *header_offset, finish, 90 rval=KERN_FAILURE); 91 versionminhdr = (struct version_min_command *) ((void *) (buf + *header_offset)); 92 bzero(versionminhdr, sizeof(*versionminhdr)); 93 *header_offset += sizeof(*versionminhdr); 94 95 switch (versionmin->platform) { 96 case kKxldVersionMinMacOSX: 97 versionminhdr->cmd = LC_VERSION_MIN_MACOSX; 98 break; 99 case kKxldVersionMiniPhoneOS: 100 versionminhdr->cmd = LC_VERSION_MIN_IPHONEOS; 101 break; 102 } 103 versionminhdr->cmdsize = (uint32_t) sizeof(*versionminhdr); 104 versionminhdr->version = versionmin->version; 105 versionminhdr->sdk = 0; 106 107 rval = KERN_SUCCESS; 108 109finish: 110 return rval; 111} 112 113