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lipo.c
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lipo.c
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/*
* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
/*
* The lipo(1) program. This program creates, thins and operates on fat files.
* This program takes the following options:
* <input_file>
* -output <filename>
* -create
* -info
* -detailed_info
* -arch <arch_type> <input_file>
* -arch_blank <arch_type>
* -thin <arch_type>
* -extract <arch_type>
* -remove <arch_type>
* -replace <arch_type> <file_name>
* -segalign <arch_type> <value>
* -verify_arch <arch_type> ...
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <ar.h>
#ifndef AR_EFMT1
#define AR_EFMT1 "#1/" /* extended format #1 */
#endif
#include <limits.h>
#include <errno.h>
#include <ctype.h>
#include <libc.h>
#ifndef __OPENSTEP__
#include <time.h>
#include <utime.h>
#endif
#include <sys/file.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <mach/mach.h>
#include <mach-o/loader.h>
#include <mach-o/fat.h>
#include "stuff/arch.h"
#include "stuff/errors.h"
#include "stuff/allocate.h"
#include "stuff/lto.h"
#include "stuff/write64.h"
#include "stuff/rnd.h"
#include "stuff/align.h"
#include "stuff/diagnostics.h"
#include <math.h>
#include <unistd.h>
/* The maximum section alignment allowed to be specified, as a power of two */
#define MAXSECTALIGN 15 /* 2**15 or 0x8000 */
/* These #undef's are because of the #define's in <mach.h> */
#undef TRUE
#undef FALSE
/* name of the program for error messages (argv[0]) */
char *progname = NULL;
/* names and types (if any) of input file specified on the commmand line */
struct input_file {
char *name;
struct arch_flag arch_flag;
struct fat_header *fat_header;
struct fat_arch *fat_arches;
struct fat_arch_64 *fat_arches64;
enum bool is_thin;
uint32_t raw_nfat_arch;
};
static struct input_file *input_files = NULL;
static uint32_t ninput_files = 0;
/* Thin files from the input files to operate on */
struct thin_file {
char *name;
char *addr;
cpu_type_t cputype;
cpu_subtype_t cpusubtype;
uint64_t offset;
uint64_t size;
uint32_t align;
enum bool from_fat;
enum bool extract;
enum bool remove;
enum bool replace;
};
static struct thin_file *thin_files = NULL;
static uint32_t nthin_files = 0;
/* The specified output file */
static char *output_file = NULL;
static uint32_t output_filemode = 0;
#ifndef __OPENSTEP__
static struct timespec output_times[2] = { 0 };
static struct timeval output_timev[2] = { 0 };
#else
static time_t output_timep[2] = { 0 };
#endif
static enum bool archives_in_input = FALSE;
/* flags set from command line arguments to specify the operation */
static enum bool create_flag = FALSE;
static enum bool info_flag = FALSE;
static enum bool detailed_info_flag = FALSE;
static enum bool brief_info_flag = FALSE; // -archs
static enum bool thin_flag = FALSE;
static struct arch_flag thin_arch_flag = { 0 };
static enum bool remove_flag = FALSE;
static struct arch_flag *remove_arch_flags = NULL;
static uint32_t nremove_arch_flags = 0;
static enum bool extract_flag = FALSE;
static struct arch_flag *extract_arch_flags = NULL;
static uint32_t nextract_arch_flags = 0;
static enum bool extract_family_flag = FALSE;
static enum bool replace_flag = FALSE;
struct replace {
struct arch_flag arch_flag;
struct thin_file thin_file;
};
static struct replace *replaces = NULL;
static uint32_t nreplaces = 0;
struct segalign {
struct arch_flag arch_flag;
uint32_t align;
};
static struct segalign *segaligns = NULL;
static uint32_t nsegaligns = 0;
static struct fat_header fat_header = { 0 };
static enum bool verify_flag = FALSE;
static struct arch_flag *verify_archs = NULL;
static uint32_t nverify_archs = 0;
static enum bool fat64_flag = FALSE;
static enum bool hideARM64_flag = FALSE;
static void create_fat(
void);
static void process_input_file(
struct input_file *input);
static void process_replace_file(
struct replace *replace);
static void check_archive(
char *name,
char *addr,
uint64_t size,
cpu_type_t *cputype,
cpu_subtype_t *cpusubtype);
static void check_extend_format_1(
char *name,
struct ar_hdr *ar_hdr,
uint64_t size_left,
uint32_t *member_name_size);
static uint32_t get_mh_filetype(
char* addr,
uint64_t size);
static void print_arch(
cpu_type_t cputype,
cpu_subtype_t cpusubtype);
static void print_cputype(
cpu_type_t cputype,
cpu_subtype_t cpusubtype);
static int size_ar_name(
char *ar_name);
static struct input_file *new_input(
void);
static struct thin_file *new_thin(
void);
static struct arch_flag *new_arch_flag(
struct arch_flag **arch_flags,
uint32_t *narch_flags);
static struct replace *new_replace(
void);
static struct segalign *new_segalign(
void);
static int cmp_qsort(
const struct thin_file *thin1,
const struct thin_file *thin2);
static enum bool ispoweroftwo(
uint32_t x);
static void check_arch(
struct input_file *input,
struct thin_file *thin);
static void usage(
void);
/* apple_version is created by the libstuff/Makefile */
extern char apple_version[];
char *version = apple_version;
int
main(
int argc,
char *argv[],
char *envp[])
{
int fd, a;
uint32_t i, j, k, value;
char *p, *endp;
struct input_file *input;
struct arch_flag *arch_flag;
struct replace *replace;
struct segalign *segalign;
const struct arch_flag *arch_flags;
enum bool found;
int time_result;
input = NULL;
diagnostics_enable(getenv("CC_LOG_DIAGNOSTICS") != NULL);
diagnostics_output(getenv("CC_LOG_DIAGNOSTICS_FILE"));
diagnostics_log_args(argc, argv);
/*
* Process the command line arguments.
*/
progname = argv[0];
for(a = 1; a < argc; a++){
if(argv[a][0] == '-'){
p = &(argv[a][1]);
switch(*p){
case 'a':
if(strcmp(p, "arch") == 0 || strcmp(p, "a") == 0){
if(a + 2 >= argc){
error("missing argument(s) to %s option", argv[a]);
usage();
}
input = new_input();
if(get_arch_from_flag(argv[a+1],
&(input->arch_flag)) == 0){
error("unknown architecture specification flag: %s "
"in specifying input file %s %s %s", argv[a+1],
argv[a], argv[a+1], argv[a+2]);
arch_usage();
usage();
}
input->name = argv[a+2];
a += 2;
}
else if(strcmp(p, "arch_blank") == 0){
fatal("flag %s is no longer supported.", argv[a]);
}
else if(strcmp(p, "archs") == 0){
brief_info_flag = TRUE;
}
else
goto unknown_flag;
break;
case 'c':
if(strcmp(p, "create") == 0 || strcmp(p, "c") == 0){
create_flag = TRUE;
}
else
goto unknown_flag;
break;
case 'd':
if(strcmp(p, "detailed_info") == 0 || strcmp(p, "d") == 0){
detailed_info_flag = TRUE;
}
else
goto unknown_flag;
break;
case 'e':
if(strcmp(p, "extract") == 0 ||
strcmp(p, "extract_family") == 0 ||
strcmp(p, "e") == 0){
extract_flag = TRUE;
if(strcmp(p, "extract_family") == 0)
extract_family_flag = TRUE;
if(a + 1 >= argc){
error("missing argument to %s option", argv[a]);
usage();
}
arch_flag = new_arch_flag(&extract_arch_flags,
&nextract_arch_flags);
if(get_arch_from_flag(argv[a+1], arch_flag) == 0){
error("unknown architecture specification flag: "
"%s in specifying extract operation: %s %s",
argv[a+1], argv[a], argv[a+1]);
arch_usage();
usage();
}
a++;
}
else
goto unknown_flag;
break;
case 'h':
if (strcmp(p, "hideARM64") == 0) {
hideARM64_flag = TRUE;
}
else
goto unknown_flag;
break;
case 'i':
if(strcmp(p, "info") == 0 || strcmp(p, "i") == 0){
info_flag = TRUE;
}
else
goto unknown_flag;
break;
case 'o':
if(strcmp(p, "output") == 0 || strcmp(p, "o") == 0){
if(a + 1 >= argc){
error("missing argument to %s option", argv[a]);
usage();
}
if(output_file != NULL)
fatal("more than one %s option specified", argv[a]);
output_file = argv[a + 1];
a++;
}
else
goto unknown_flag;
break;
case 'r':
if(strcmp(p, "remove") == 0 || strcmp(p, "rem") == 0){
remove_flag = TRUE;
if(a + 1 >= argc){
error("missing argument to %s option", argv[a]);
usage();
}
arch_flag = new_arch_flag(&remove_arch_flags,
&nremove_arch_flags);
if(get_arch_from_flag(argv[a+1], arch_flag) == 0){
error("unknown architecture specification flag: "
"%s in specifying remove operation: %s %s",
argv[a+1], argv[a], argv[a+1]);
arch_usage();
usage();
}
a++;
}
else if(strcmp(p, "replace") == 0 || strcmp(p, "rep") == 0){
replace_flag = TRUE;
if(a + 2 >= argc){
error("missing argument(s) to %s option", argv[a]);
usage();
}
replace = new_replace();
if(get_arch_from_flag(argv[a+1],
&(replace->arch_flag)) == 0){
error("unknown architecture specification flag: "
"%s in specifying replace operation: %s %s %s",
argv[a+1], argv[a], argv[a+1], argv[a+2]);
arch_usage();
usage();
}
replace->thin_file.name = argv[a+2];
a += 2;
}
else
goto unknown_flag;
break;
case 's':
if(strcmp(p, "segalign") == 0 || strcmp(p, "s") == 0){
if(a + 2 >= argc){
error("missing argument(s) to %s option", argv[a]);
usage();
}
segalign = new_segalign();
if(get_arch_from_flag(argv[a+1],
&(segalign->arch_flag)) == 0){
error("unknown architecture specification flag: "
"%s in specifying segment alignment: %s %s %s",
argv[a+1], argv[a], argv[a+1], argv[a+2]);
arch_usage();
usage();
}
value = (uint32_t)strtoul(argv[a+2], &endp, 16);
if(*endp != '\0')
fatal("argument for -segalign <arch_type> %s not a "
"proper hexadecimal number", argv[a+2]);
if(!ispoweroftwo(value) || value == 0)
fatal("argument to -segalign <arch_type> %x (hex) "
"must be a non-zero power of two", value);
if(value > (1 << MAXSECTALIGN))
fatal("argument to -segalign <arch_type> %x (hex) "
"must equal to or less than %x (hex)",
value, (unsigned int)(1 << MAXSECTALIGN));
segalign->align = 0;
while((value & 0x1) != 1){
value >>= 1;
segalign->align++;
}
a += 2;
}
else
goto unknown_flag;
break;
case 't':
if(strcmp(p, "thin") == 0 || strcmp(p, "t") == 0){
if(thin_flag == TRUE)
fatal("more than one %s option specified", argv[a]);
thin_flag = TRUE;
if(a + 1 >= argc){
error("missing argument to %s option", argv[a]);
usage();
}
if(get_arch_from_flag(argv[a+1], &thin_arch_flag) == 0){
error("unknown architecture specification flag: "
"%s in specifying thin operation: %s %s",
argv[a+1], argv[a], argv[a+1]);
arch_usage();
usage();
}
a++;
}
else
goto unknown_flag;
break;
case 'v':
if(strcmp(p, "verify_arch") == 0){
verify_flag = TRUE;
if(a + 1 >= argc){
error("missing argument(s) to %s option", argv[a]);
usage();
}
a++;
nverify_archs = argc - a;
verify_archs = (struct arch_flag *)allocate(
sizeof(struct arch_flag) * nverify_archs);
for(i = 0; a < argc; a++, i++){
if(get_arch_from_flag(argv[a],
verify_archs + i) == 0){
error("unknown architecture specification "
"flag: %s in specifying -verify_arch "
"operation", argv[a]);
arch_usage();
usage();
}
}
}
else
goto unknown_flag;
break;
case 'f':
if(strcmp(p, "fat64") == 0)
fat64_flag = TRUE;
else
goto unknown_flag;
break;
default:
unknown_flag:
fatal("unknown flag: %s", argv[a]);
}
}
else{
input = new_input();
input->name = argv[a];
}
}
/*
* Check to see the specified arguments are valid.
*/
if(info_flag == FALSE && detailed_info_flag == FALSE &&
brief_info_flag == FALSE &&
create_flag == FALSE && thin_flag == FALSE &&
extract_flag == FALSE && remove_flag == FALSE &&
replace_flag == FALSE && verify_flag == FALSE){
error("one of -create, -thin <arch_type>, -extract <arch_type>, "
"-remove <arch_type>, -replace <arch_type> <file_name>, "
"-verify_arch <arch_type> ... , "
"-archs, -info, or -detailed_info must be specified");
usage();
}
if((create_flag == TRUE || thin_flag == TRUE || extract_flag == TRUE ||
remove_flag == TRUE || replace_flag == TRUE) &&
output_file == NULL){
error("no output file specified");
usage();
}
if(ninput_files == 0){
error("no input files specified");
usage();
}
if(verify_flag == TRUE && ninput_files != 1){
error("only one input file allowed with -verify_arch");
usage();
}
if(brief_info_flag == TRUE && ninput_files != 1){
error("only one input file allowed with -archs");
usage();
}
if(create_flag + thin_flag + extract_flag + remove_flag + replace_flag +
info_flag + detailed_info_flag + brief_info_flag + verify_flag > 1){
error("only one of -create, -thin <arch_type>, -extract <arch_type>"
", -remove <arch_type>, -replace <arch_type> <file_name>, "
"-verify_arch <arch_type> ..., "
"-info, -archs, or -detailed_info can be specified");
usage();
}
if (hideARM64_flag == TRUE && create_flag == FALSE &&
replace_flag == FALSE && remove_flag == FALSE) {
error("-hideARM64 may only be used with -create, -remove, or "
"-replace");
usage();
}
/*
* Determine the types of the input files.
*/
for(i = 0; i < ninput_files; i++)
process_input_file(input_files + i);
/*
* Do the specified operation.
*/
if(create_flag){
/* check to make sure no two files have the same architectures */
for(i = 0; i < nthin_files; i++)
for(j = i + 1; j < nthin_files; j++)
if(thin_files[i].cputype ==
thin_files[j].cputype &&
(thin_files[i].cpusubtype & ~CPU_SUBTYPE_MASK)==
(thin_files[j].cpusubtype & ~CPU_SUBTYPE_MASK)){
arch_flags = get_arch_flags();
for(k = 0; arch_flags[k].name != NULL; k++){
if(arch_flags[k].cputype ==
thin_files[j].cputype &&
(arch_flags[k].cpusubtype &
~CPU_SUBTYPE_MASK) ==
(thin_files[j].cpusubtype &
~CPU_SUBTYPE_MASK))
fatal("%s and %s have the same architectures (%s) "
"and can't be in the same fat output file",
thin_files[i].name, thin_files[j].name,
arch_flags[k].name);
}
fatal("%s and %s have the same architectures (cputype "
"(%d) and cpusubtype (%d)) and can't be in the "
"same fat output file", thin_files[i].name,
thin_files[j].name,thin_files[i].cputype,
thin_files[i].cpusubtype &
~CPU_SUBTYPE_MASK);
}
create_fat();
}
if(thin_flag){
if(ninput_files != 1)
fatal("only one input file can be specified with the -thin "
"option");
if(input_files[0].fat_header == NULL)
fatal("input file (%s) must be a fat file when the -thin "
"option is specified", input_files[0].name);
for(i = 0; i < nthin_files; i++){
if(thin_files[i].cputype == thin_arch_flag.cputype &&
(thin_files[i].cpusubtype & ~CPU_SUBTYPE_MASK) ==
(thin_arch_flag.cpusubtype & ~CPU_SUBTYPE_MASK)){
(void)unlink(output_file);
if((fd = open(output_file, O_WRONLY | O_CREAT | O_TRUNC,
output_filemode)) == -1)
system_fatal("can't create output file: %s",
output_file);
if (write64(fd, thin_files[i].addr, thin_files[i].size) !=
thin_files[i].size)
system_fatal("can't write thin file to output "
"file: %s", output_file);
if(close(fd) == -1)
system_fatal("can't close output file: %s",output_file);
#ifndef __OPENSTEP__
if (__builtin_available(macOS 10.12, *)) {
time_result = utimensat(AT_FDCWD, output_file,
output_times, 0);
}
else {
time_result = utimes(output_file, output_timev);
}
#else
time_result = utime(output_file, output_timep);
#endif
if (time_result == -1)
system_fatal("can't set the modify times for "
"output file: %s", output_file);
break;
}
}
if(i == nthin_files)
fatal("fat input file (%s) does not contain the specified "
"architecture (%s) to thin it to", input->name,
thin_arch_flag.name);
}
if(extract_flag){
if(ninput_files != 1)
fatal("only one input file can be specified with the -extract "
"option");
if(input_files[0].fat_header == NULL)
fatal("input file (%s) must be a fat file when the -extract "
"option is specified", input_files[0].name);
if(input_files[0].fat_header->magic == FAT_MAGIC_64)
fat64_flag = TRUE;
for(i = 0; i < nextract_arch_flags; i++){
for(j = i + 1; j < nextract_arch_flags; j++){
if(extract_arch_flags[i].cputype ==
extract_arch_flags[j].cputype &&
(extract_arch_flags[i].cpusubtype & ~CPU_SUBTYPE_MASK) ==
(extract_arch_flags[j].cpusubtype & ~CPU_SUBTYPE_MASK))
fatal("-extract %s specified multiple times",
extract_arch_flags[i].name);
}
}
/* mark those thin files for extraction */
for(i = 0; i < nextract_arch_flags; i++){
found = FALSE;
for(j = 0; j < nthin_files; j++){
if(extract_arch_flags[i].cputype ==
thin_files[j].cputype &&
((extract_arch_flags[i].cpusubtype &
~CPU_SUBTYPE_MASK)==
(thin_files[j].cpusubtype &
~CPU_SUBTYPE_MASK) ||
extract_family_flag == TRUE)){
thin_files[j].extract = TRUE;
found = TRUE;
}
}
if(found == FALSE)
fatal("-extract %s specified but fat file: %s does not "
"contain that architecture",
extract_arch_flags[i].name, input_files[0].name);
}
/* remove those thin files not marked for extraction */
for(i = 0; i < nthin_files; ){
if(thin_files[i].extract == FALSE){
for(j = i; j < nthin_files - 1; j++)
thin_files[j] = thin_files[j + 1];
nthin_files--;
}
else
i++;
}
create_fat();
}
if(remove_flag){
if(ninput_files != 1)
fatal("only one input file can be specified with the -remove "
"option");
if(input_files[0].fat_header == NULL)
fatal("input file (%s) must be a fat file when the -remove "
"option is specified", input_files[0].name);
if(input_files[0].fat_header->magic == FAT_MAGIC_64)
fat64_flag = TRUE;
for(i = 0; i < nremove_arch_flags; i++){
for(j = i + 1; j < nremove_arch_flags; j++){
if(remove_arch_flags[i].cputype ==
remove_arch_flags[j].cputype &&
(remove_arch_flags[i].cpusubtype & ~CPU_SUBTYPE_MASK) ==
(remove_arch_flags[j].cpusubtype & ~CPU_SUBTYPE_MASK))
fatal("-remove %s specified multiple times",
remove_arch_flags[i].name);
}
}
/* mark those thin files for removal */
for(i = 0; i < nremove_arch_flags; i++){
for(j = 0; j < nthin_files; j++){
if(remove_arch_flags[i].cputype ==
thin_files[j].cputype &&
(remove_arch_flags[i].cpusubtype &
~CPU_SUBTYPE_MASK) ==
(thin_files[j].cpusubtype &
~CPU_SUBTYPE_MASK)){
thin_files[j].remove = TRUE;
break;
}
}
if(j == nthin_files)
fatal("-remove %s specified but fat file: %s does not "
"contain that architecture",
remove_arch_flags[i].name, input_files[0].name);
}
/* remove those thin files marked for removal */
for(i = 0; i < nthin_files; ){
if(thin_files[i].remove == TRUE){
for(j = i; j < nthin_files; j++)
thin_files[j] = thin_files[j + 1];
nthin_files--;
}
else
i++;
}
if(nthin_files == 0)
fatal("-remove's specified would result in an empty fat file");
create_fat();
}
if(replace_flag){
if(ninput_files != 1)
fatal("only one input file can be specified with the -replace "
"option");
if(input_files[0].fat_header == NULL)
fatal("input file (%s) must be a fat file when the -replace "
"option is specified", input_files[0].name);
if(input_files[0].fat_header->magic == FAT_MAGIC_64)
fat64_flag = TRUE;
for(i = 0; i < nreplaces; i++){
for(j = i + 1; j < nreplaces; j++){
if(replaces[i].arch_flag.cputype ==
replaces[j].arch_flag.cputype &&
(replaces[i].arch_flag.cpusubtype & ~CPU_SUBTYPE_MASK) ==
(replaces[j].arch_flag.cpusubtype & ~CPU_SUBTYPE_MASK))
fatal("-replace %s <file_name> specified multiple times",
replaces[j].arch_flag.name);
}
}
for(i = 0; i < nreplaces; i++){
process_replace_file(replaces + i);
for(j = 0; j < nthin_files; j++){
if(replaces[i].arch_flag.cputype ==
thin_files[j].cputype &&
(replaces[i].arch_flag.cpusubtype & ~CPU_SUBTYPE_MASK) ==
(thin_files[j].cpusubtype & ~CPU_SUBTYPE_MASK)){
thin_files[j] = replaces[i].thin_file;
break;
}
}
if(j == nthin_files)
fatal("-replace %s <file_name> specified but fat file: %s "
"does not contain that architecture",
replaces[i].arch_flag.name, input_files[0].name);
}
create_fat();
}
if (brief_info_flag) {
for (i = 0; i < nthin_files; i++) {
const char* s = get_arch_name_if_known(
thin_files[i].cputype,
thin_files[i].cpusubtype);
if (i) {
printf(" ");
}
if (s) {
printf("%s", s);
}
else {
printf("unknown(%u,%u)", thin_files[i].cputype,
thin_files[i].cpusubtype & ~CPU_SUBTYPE_MASK);
}
}
printf("\n");
}
if(info_flag){
for(i = 0; i < ninput_files; i++){
if(input_files[i].fat_header != NULL){
printf("Architectures in the fat file: %s are: ",
input_files[i].name);
if(input_files[i].fat_arches != NULL){
for(j = 0; j < input_files[i].fat_header->nfat_arch;
j++){
print_arch(input_files[i].fat_arches[j].cputype,
input_files[i].fat_arches[j].cpusubtype);
printf(" ");
}
}
else{
for(j = 0; j < input_files[i].fat_header->nfat_arch;
j++){
print_arch(input_files[i].fat_arches64[j].cputype,
input_files[i].fat_arches64[j].cpusubtype);
printf(" ");
}
}
printf("\n");
}
else{
if(input_files[i].is_thin == FALSE)
printf("input file %s is not a fat file\n",
input_files[i].name);
}
}
for(i = 0; i < nthin_files; i++){
if(thin_files[i].from_fat == TRUE)
continue;
printf("Non-fat file: %s is architecture: %s\n",
thin_files[i].name,
get_arch_name_from_types(thin_files[i].cputype,
thin_files[i].cpusubtype & ~CPU_SUBTYPE_MASK));
}
}
if(detailed_info_flag){
for(i = 0; i < ninput_files; i++){
if(input_files[i].fat_header != NULL){
printf("Fat header in: %s\n", input_files[i].name);
printf("fat_magic 0x%x\n",
(unsigned int)(input_files[i].fat_header->magic));
printf("nfat_arch %u",
input_files[i].raw_nfat_arch);
if (input_files[i].fat_header->nfat_arch -
input_files[i].raw_nfat_arch) {
printf(" (+%u hidden)",
input_files[i].fat_header->nfat_arch -
input_files[i].raw_nfat_arch);
}
printf("\n");
for(j = 0; j < input_files[i].fat_header->nfat_arch; j++){
printf("architecture ");
if(input_files[i].fat_arches != NULL){
print_arch(input_files[i].fat_arches[j].cputype,
input_files[i].fat_arches[j].cpusubtype);
if (j >= input_files[i].raw_nfat_arch) {
printf(" (hidden)");
}
printf("\n");
print_cputype(input_files[i].fat_arches[j].cputype,
input_files[i].fat_arches[j].cpusubtype);
printf(" offset %u\n",
input_files[i].fat_arches[j].offset);
printf(" size %u\n",
input_files[i].fat_arches[j].size);
printf(" align 2^%u (%d)\n",
input_files[i].fat_arches[j].align,
1 << input_files[i].fat_arches[j].align);
}
else{
print_arch(input_files[i].fat_arches64[j].cputype,
input_files[i].fat_arches64[j].cpusubtype);
if (j >= input_files[i].raw_nfat_arch) {
printf(" (hidden)");
}
printf("\n");
print_cputype(
input_files[i].fat_arches64[j].cputype,
input_files[i].fat_arches64[j].cpusubtype);
printf(" offset %llu\n",
input_files[i].fat_arches64[j].offset);
printf(" size %llu\n",
input_files[i].fat_arches64[j].size);
printf(" align 2^%u (%d)\n",
input_files[i].fat_arches64[j].align,
1 << input_files[i].fat_arches64[j].align);
}
}
}
else{
printf("input file %s is not a fat file\n",
input_files[i].name);
}
}
for(i = 0; i < nthin_files; i++){
if(thin_files[i].from_fat == TRUE)
continue;
printf("Non-fat file: %s is architecture: %s\n",
thin_files[i].name,
get_arch_name_from_types(thin_files[i].cputype,
thin_files[i].cpusubtype & ~CPU_SUBTYPE_MASK));
}
}
if(verify_flag == TRUE){
for(i = 0; i < nverify_archs; i++){
found = FALSE;
for(j = 0; j < nthin_files; j++){
if(verify_archs[i].cputype ==
thin_files[j].cputype &&
(verify_archs[i].cpusubtype & ~CPU_SUBTYPE_MASK) ==
(thin_files[j].cpusubtype & ~CPU_SUBTYPE_MASK)){
found = TRUE;
break;
}
}
if(found == FALSE){
exit(1);
}
}
}
return (errors ? 1 : 0);
}
/*
* create_fat() creates a fat output file from the thin files.
*/
static
void
create_fat(void)
{
uint32_t i, j;
uint64_t offset;
char *rename_file;
int fd;
struct fat_arch fat_arch;
struct fat_arch_64 fat_arch64;
/* fold in specified segment alignments */
for(i = 0; i < nsegaligns; i++){
for(j = i + 1; j < nsegaligns; j++){
if(segaligns[i].arch_flag.cputype ==
segaligns[j].arch_flag.cputype &&
(segaligns[i].arch_flag.cpusubtype & ~CPU_SUBTYPE_MASK) ==
(segaligns[j].arch_flag.cpusubtype & ~CPU_SUBTYPE_MASK))
fatal("-segalign %s <value> specified multiple times",
segaligns[j].arch_flag.name);
}
}
for(i = 0; i < nsegaligns; i++){
for(j = 0; j < nthin_files; j++){
if(segaligns[i].arch_flag.cputype ==
thin_files[j].cputype &&
(segaligns[i].arch_flag.cpusubtype & ~CPU_SUBTYPE_MASK) ==
(thin_files[j].cpusubtype & ~CPU_SUBTYPE_MASK)){
/*
Since this program has to guess at alignments and guesses high when unsure this
check shouldn't be used so the the correct alignment can be specified by the
the user.
if(thin_files[j].align > segaligns[i].align)
fatal("specified segment alignment: %d for "
"architecture %s is less than the alignment: %d "
"required from the input file",
1 << segaligns[i].align,
segaligns[i].arch_flag.name,
1 << thin_files[j].align);
*/
thin_files[j].align = segaligns[i].align;
break;
}
}
if(j == nthin_files)
fatal("-segalign %s <value> specified but resulting fat "
"file does not contain that architecture",
segaligns[i].arch_flag.name);
}
/* sort the files by alignment to save space in the output file */
qsort(thin_files, nthin_files, sizeof(struct thin_file),
(int (*)(const void *, const void *))cmp_qsort);
/* Fill in the fat header and the fat_arch's offsets. */
if(fat64_flag == TRUE)
fat_header.magic = FAT_MAGIC_64;
else
fat_header.magic = FAT_MAGIC;
fat_header.nfat_arch = nthin_files;
/* begin change for 15002326: write a hidden arm64 arch */
if (hideARM64_flag) {
enum bool has_arm32 = FALSE;
enum bool has_arm64 = FALSE;
uint32_t num_archs = 0;
uint32_t num_archs_arm64 = 0;
for(i = 0; i < nthin_files; i++){
if (MH_EXECUTE != get_mh_filetype(thin_files[i].addr,
thin_files[i].size)) {
fatal("-hideARM64 specified but thin file %s is not of "
"type MH_EXECUTE", thin_files[i].name);
}
if (has_arm64 && thin_files[i].cputype != CPU_TYPE_ARM64) {
fatal("-hideARM64 specified but thin files are not in "
"correct order");
}
if (thin_files[i].cputype == CPU_TYPE_ARM) {
has_arm32 = TRUE;
}
if (thin_files[i].cputype == CPU_TYPE_ARM64) {
has_arm64 = TRUE;
num_archs_arm64 += 1;
}
num_archs += 1;
}
if (has_arm32 && has_arm64) {
fat_header.nfat_arch = num_archs - num_archs_arm64;
}