diff --git a/utils/jz4760_tools/Makefile b/utils/jz4760_tools/Makefile new file mode 100644 index 0000000000..847539e38c --- /dev/null +++ b/utils/jz4760_tools/Makefile @@ -0,0 +1,21 @@ +DEFINES= +CC?=gcc +CXX?=g++ +LD?=g++ +CFLAGS=-g -std=c99 -Wall $(DEFINES) -Ilib +CXXFLAGS=-g -Wall $(DEFINES) +LDFLAGS= +SRC=$(wildcard *.c) +SRCXX=$(wildcard *.cpp) +EXEC=$(SRC:.c=) $(SRCXX:.cpp=) + +all: $(EXEC) + +%: %.c + $(CC) $(CFLAGS) -o $@ $< $(LDFLAGS) + +%: %.cpp + $(CXX) $(CXXFLAGS) -o $@ $< $(LDFLAGS) + +clean: + rm -fr $(EXEC) diff --git a/utils/jz4760_tools/packtools.cpp b/utils/jz4760_tools/packtools.cpp new file mode 100644 index 0000000000..6bd5ec0330 --- /dev/null +++ b/utils/jz4760_tools/packtools.cpp @@ -0,0 +1,563 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2015 by Amaury Pouly + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct jz4760_fw_hdr_t +{ + uint32_t magic; + uint32_t fs_size; // unsure, always 0x7f00000 + uint32_t hdr_size; // header size in sectors, always 4 + uint32_t pad; + char datetime[12]; // format: yyyymmddhhmm + uint32_t nr_files; + uint32_t unk; // always 2, seems related to CRC, maybe CRC mode + uint32_t pad2[3]; + uint8_t machine[8]; + uint8_t pad3[452]; + uint32_t eoh; // end of header +} __attribute__((packed)); + +const uint32_t JZ4760_FW_MAGIC = 0x49484653; // 'IHFS' +const uint32_t JZ4760_FW_EOH = 0x55aa55aa; // end of header + +struct jz4760_fw_file_t +{ + char name[56]; + uint32_t offset; // absolute offset in sectors + uint32_t size; // in bytes +} __attribute__((packed)); + +const uint32_t jz4760_crc_key[256] = +{ + 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, + 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef, + 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, + 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de, + 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485, + 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d, + 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4, + 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc, + 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823, + 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b, + 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, + 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a, + 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, + 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49, + 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70, + 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78, + 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f, + 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067, + 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, + 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256, + 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, + 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, + 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c, + 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634, + 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab, + 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3, + 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a, + 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92, + 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, + 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1, + 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, + 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0, +}; + +const unsigned JZ4760_XOR_KEY_SIZE = 344; +uint8_t jz4760_xor_key[JZ4760_XOR_KEY_SIZE] = +{ + 0x02, 0x03, 0x05, 0x07, 0x0b, 0x0d, 0x11, 0x13, + 0x17, 0x1d, 0x1f, 0x25, 0x29, 0x2b, 0x2f, 0x35, + 0x3b, 0x3d, 0x43, 0x47, 0x49, 0x4f, 0x53, 0x59, + 0x61, 0x65, 0x67, 0x6b, 0x6d, 0x71, 0x7f, 0x83, + 0x89, 0x8b, 0x95, 0x97, 0x9d, 0xa3, 0xa7, 0xad, + 0xb3, 0xb5, 0xbf, 0xc1, 0xc5, 0xc7, 0xd3, 0xdf, + 0xe3, 0xe5, 0xe9, 0xef, 0xf1, 0xfb, 0x01, 0x07, + 0x0d, 0x0f, 0x15, 0x19, 0x1b, 0x25, 0x33, 0x37, + 0x39, 0x3d, 0x4b, 0x51, 0x5b, 0x5d, 0x61, 0x67, + 0x6f, 0x75, 0x7b, 0x7f, 0x85, 0x8d, 0x91, 0x99, + 0xa3, 0xa5, 0xaf, 0xb1, 0xb7, 0xbb, 0xc1, 0xc9, + 0xcd, 0xcf, 0xd3, 0xdf, 0xe7, 0xeb, 0xf3, 0xf7, + 0xfd, 0x09, 0x0b, 0x1d, 0x23, 0x2d, 0x33, 0x39, + 0x3b, 0x41, 0x4b, 0x51, 0x57, 0x59, 0x5f, 0x65, + 0x69, 0x6b, 0x77, 0x81, 0x83, 0x87, 0x8d, 0x93, + 0x95, 0xa1, 0xa5, 0xab, 0xb3, 0xbd, 0xc5, 0xcf, + 0xd7, 0xdd, 0xe3, 0xe7, 0xef, 0xf5, 0xf9, 0x01, + 0x05, 0x13, 0x1d, 0x29, 0x2b, 0x35, 0x37, 0x3b, + 0x3d, 0x47, 0x55, 0x59, 0x5b, 0x5f, 0x6d, 0x71, + 0x73, 0x77, 0x8b, 0x8f, 0x97, 0xa1, 0xa9, 0xad, + 0xb3, 0xb9, 0xc7, 0xcb, 0xd1, 0xd7, 0xdf, 0xe5, + 0xf1, 0xf5, 0xfb, 0xfd, 0x02, 0x03, 0x05, 0x07, + 0x0b, 0x0d, 0x11, 0x13, 0x17, 0x1d, 0x1f, 0x25, + 0x29, 0x2b, 0x2f, 0x35, 0x3b, 0x3d, 0x43, 0x47, + 0x49, 0x4f, 0x53, 0x59, 0x61, 0x65, 0x67, 0x6b, + 0x6d, 0x71, 0x7f, 0x83, 0x89, 0x8b, 0x95, 0x97, + 0x9d, 0xa3, 0xa7, 0xad, 0xb3, 0xb5, 0xbf, 0xc1, + 0xc5, 0xc7, 0xd3, 0xdf, 0xe3, 0xe5, 0xe9, 0xef, + 0xf1, 0xfb, 0x01, 0x07, 0x0d, 0x0f, 0x15, 0x19, + 0x1b, 0x25, 0x33, 0x37, 0x39, 0x3d, 0x4b, 0x51, + 0x5b, 0x5d, 0x61, 0x67, 0x6f, 0x75, 0x7b, 0x7f, + 0x85, 0x8d, 0x91, 0x99, 0xa3, 0xa5, 0xaf, 0xb1, + 0xb7, 0xbb, 0xc1, 0xc9, 0xcd, 0xcf, 0xd3, 0xdf, + 0xe7, 0xeb, 0xf3, 0xf7, 0xfd, 0x09, 0x0b, 0x1d, + 0x23, 0x2d, 0x33, 0x39, 0x3b, 0x41, 0x4b, 0x51, + 0x57, 0x59, 0x5f, 0x65, 0x69, 0x6b, 0x77, 0x81, + 0x83, 0x87, 0x8d, 0x93, 0x95, 0xa1, 0xa5, 0xab, + 0xb3, 0xbd, 0xc5, 0xcf, 0xd7, 0xdd, 0xe3, 0xe7, + 0xef, 0xf5, 0xf9, 0x01, 0x05, 0x13, 0x1d, 0x29, + 0x2b, 0x35, 0x37, 0x3b, 0x3d, 0x47, 0x55, 0x59, + 0x5b, 0x5f, 0x6d, 0x71, 0x73, 0x77, 0x8b, 0x8f, + 0x97, 0xa1, 0xa9, 0xad, 0xb3, 0xb9, 0xc7, 0xcb, + 0xd1, 0xd7, 0xdf, 0xe5, 0xf1, 0xf5, 0xfb, 0xfd, +}; + +bool g_verbose = false; + +uint8_t *read_file(const std::string& path, size_t& size) +{ + std::ifstream fin(path.c_str(), std::ios::binary); + if(!fin) + { + printf("Error: cannot open '%s'\n", path.c_str()); + return 0; + } + fin.seekg(0, std::ios::end); + size = fin.tellg(); + fin.seekg(0, std::ios::beg); + uint8_t *buf = new uint8_t[size]; + fin.read((char *)buf, size); + return buf; +} + +bool write_file(const std::string& path, uint8_t *buf, size_t size) +{ + std::ofstream fout(path.c_str(), std::ios::binary); + if(!fout) + { + printf("Error: cannot open '%s'\n", path.c_str()); + return false; + } + fout.write((char *)buf, size); + fout.close(); + return true; +} + +bool create_dir(const std::string& dir) +{ + mkdir(dir.c_str(), 0755); + return true; +} + +// the firmware uses '\' as separator +bool create_file(std::string path, uint8_t *buf, size_t size) +{ + size_t pos = -1; + while((pos = path.find_first_of("/\\", pos + 1)) != std::string::npos) + { + path[pos] = '/'; + create_dir(path.substr(0, pos)); + } + return write_file(path, buf, size); +} + +bool list_files(const std::string& prefix, const std::string& path, + std::vector< std::string >& list) +{ + DIR *dir = opendir((prefix + "/" + path).c_str()); + if(!dir) + { + printf("Error: cannot open directory '%s'\n", path.c_str()); + goto Lerr; + } + struct dirent *entry; + while((entry = readdir(dir))) + { + std::string p = entry->d_name; + if(p == "." || p == "..") + continue; + std::string subname = prefix + "/" + path + "/" + entry->d_name; + struct stat st; + if(lstat(subname.c_str(), &st) != 0) + { + printf("Error: cannot stat '%s'\n", subname.c_str()); + goto Lerr; + } + if(!path.empty()) + p = path + "/" + p; + if(st.st_mode & S_IFREG) + list.push_back(p); + if(st.st_mode & S_IFDIR) + { + if(!list_files(prefix, p, list)) + goto Lerr; + } + } + closedir(dir); + return true; +Lerr: + closedir(dir); + return false; +} + +std::vector< std::string > list_files(const std::string& path, bool& ok) +{ + std::vector< std::string > list; + ok = list_files(path, "", list); + return list; +} + +uint32_t jz4760_crc(uint32_t crc, uint8_t *buf, size_t size) +{ + while(size--) + crc = jz4760_crc_key[*buf++ ^ ((crc & 0xff00) >> 8)] ^ (crc << 8); + return crc; +} + +int unpack(int argc, char **argv) +{ + std::string input_file; + std::string output_dir; + while(1) + { + int c = getopt(argc, argv, "i:o:v"); + if(c == -1) + break; + switch(c) + { + case 'v': + g_verbose = true; + break; + case 'i': + input_file = optarg; + break; + case 'o': + output_dir = optarg; + break; + default: + abort(); + } + } + if(optind != argc) + return printf("Error: extra arguments on command line\n"); + if(input_file.empty()) + return printf("Error: you need to specify the input file\n"); + if(output_dir.empty()) + printf("Warning: you did not specify an output directory, this will be a dry run\n"); + size_t fw_size; + uint8_t *fw_buf = read_file(input_file, fw_size); + if(!fw_buf) + return 1; + /* firmware has N blocks of 512 plus a 4 byte checksum at the end + * each file must have at least 4 sectors for the header and 256 for the entries + * for a total of 260 */ + if(fw_size < 512 * 260) + return printf("Error: firmware is too small\n"); + if((fw_size - 4) % 512) + return printf("Error: firmware has bad size\n"); + struct jz4760_fw_hdr_t *fw_hdr = (struct jz4760_fw_hdr_t *)fw_buf; + if(fw_hdr->magic != JZ4760_FW_MAGIC) + return printf("Error: firmware has wrong magic value\n"); + if(fw_hdr->eoh != JZ4760_FW_EOH) + return printf("Error: firmware has wrong end of header value\n"); + if(g_verbose) + { + printf("Header:\n"); + printf(" Magic: %#x\n", fw_hdr->magic); + printf(" FS Size: %#x\n", fw_hdr->fs_size); + printf(" Header Size: %d\n", fw_hdr->hdr_size); + printf(" Date: %c%c/%c%c/%c%c%c%c\n", fw_hdr->datetime[6], + fw_hdr->datetime[7], fw_hdr->datetime[4], fw_hdr->datetime[5], + fw_hdr->datetime[0], fw_hdr->datetime[1], fw_hdr->datetime[2], + fw_hdr->datetime[3]); + printf(" Time: %c%c:%c%c\n", fw_hdr->datetime[8], + fw_hdr->datetime[9], fw_hdr->datetime[10], fw_hdr->datetime[11]); + printf(" Files: %u\n", fw_hdr->nr_files); + printf(" Unknown: %x\n", fw_hdr->unk); + printf(" Machine: %.8s\n", fw_hdr->machine); + } + uint32_t crc = *reinterpret_cast< uint32_t* >(fw_buf + fw_size - 4); + if(crc != jz4760_crc(0, fw_buf, fw_size - 4)) + return printf("Error: CRC does not match\n"); + // check number of files + if(fw_hdr->nr_files > 2048) + return printf("Error: too many files\n"); + struct jz4760_fw_file_t *fw_file = (struct jz4760_fw_file_t *)(fw_buf + 4 * 512); + for(unsigned i = 0; i < fw_hdr->nr_files; i++) + { + if(g_verbose) + { + printf("File #%d:\n", i); + printf(" Name: %s\n", fw_file[i].name); + printf(" Offset: %#x\n", fw_file[i].offset); + printf(" Size: %u\n", fw_file[i].size); + } + if(output_dir.empty()) + continue; + create_file(output_dir + "/" + std::string(fw_file[i].name, sizeof(fw_file[i].name)), + fw_buf + 512 * fw_file[i].offset, fw_file[i].size); + } + return 0; +} + +bool parse_time(const std::string& time, std::tm& tm) +{ + std::istringstream iss(time); + iss >> tm.tm_mday; + if(iss.get() != '/') + goto Lwarn; + iss >> tm.tm_mon; + if(iss.get() != '/') + goto Lwarn; + iss >> tm.tm_year; + iss >> tm.tm_hour; + if(iss.get() != ':') + goto Lwarn; + iss >> tm.tm_min; + return true; +Lwarn: + printf("Error: wrong time format\n"); + return false; +} + +bool istrcmp(const std::string& a, const std::string& b) +{ + return strcasecmp(a.c_str(), b.c_str()) < 0; +} + +int pack(int argc, char **argv) +{ + std::string input_dir; + std::string output_file; + std::string machine; + std::string datetime; + while(1) + { + int c = getopt(argc, argv, "i:o:m:vt:"); + if(c == -1) + break; + switch(c) + { + case 'v': + g_verbose = true; + break; + case 'i': + input_dir = optarg; + break; + case 'o': + output_file = optarg; + break; + case 'm': + machine = optarg; + break; + case 't': + datetime = optarg; + break; + default: + abort(); + } + } + if(optind != argc) + return printf("Error: extra arguments on command line\n"); + if(input_dir.empty()) + return printf("Error: you need to specify the input file\n"); + if(machine.empty()) + printf("Warning: you did not specify the machine flags, the produce file may be invalid\n"); + if(output_file.empty()) + return printf("Error: you must specify an output file\n"); + bool ok = true; + std::vector< std::string > list = list_files(input_dir, ok); + if(!ok) + return printf("Error: there were some errors while listing files\n"); + /* NOTE: keep compatibility with original packtools which sorts files, + * I doubt the sorted order is really necessary but not costly anyway */ + std::sort(list.begin(), list.end(), istrcmp); + if(g_verbose) + { + for(size_t i = 0; i < list.size(); i++) + printf("%s\n", list[i].c_str()); + } + if(list.size() > 2048) + return printf("Error: cannot make an archive with more than 2048 files\n"); + struct jz4760_fw_hdr_t hdr; + memset(&hdr, 0, sizeof(hdr)); + hdr.magic = JZ4760_FW_MAGIC; + hdr.fs_size = 0x7f00000; + hdr.hdr_size = 4; + std::time_t time = std::time(0); + std::tm *tm = localtime(&time); + if(!datetime.empty()) + if(!parse_time(datetime, *tm)) + return 1; + char str[13]; + snprintf(str, sizeof(str), "%04d%02d%02d%02d%02d", tm->tm_year, tm->tm_mon, + tm->tm_mday, tm->tm_hour, tm->tm_min); + memcpy(hdr.datetime, str, sizeof(hdr.datetime)); + hdr.unk = 2; + hdr.nr_files = list.size(); + memcpy(hdr.machine, machine.c_str(), sizeof(hdr.machine)); + hdr.eoh = JZ4760_FW_EOH; + uint32_t crc = jz4760_crc(0, (uint8_t *)&hdr, sizeof(hdr)); + + std::ofstream fout(output_file.c_str(), std::ios::binary); + fout.write((char *)&hdr, sizeof(hdr)); + // three empty sectors + uint8_t zero_sector[512]; + memset(zero_sector, 0, sizeof(zero_sector)); + crc = jz4760_crc(crc, zero_sector, sizeof(zero_sector)); + fout.write((char *)zero_sector, sizeof(zero_sector)); + crc = jz4760_crc(crc, zero_sector, sizeof(zero_sector)); + fout.write((char *)zero_sector, sizeof(zero_sector)); + crc = jz4760_crc(crc, zero_sector, sizeof(zero_sector)); + fout.write((char *)zero_sector, sizeof(zero_sector)); + // write file headers + size_t tot_size = 260; // 4 for headers, 256 for file headers + for(size_t i = 0; i < list.size(); i++) + { + jz4760_fw_file_t file; + memset(&file, 0, sizeof(file)); + std::string name = list[i]; + for(size_t j = 0; j < name.size(); j++) + if(name[j] == '/') + name[j] = '\\'; + if(name.size() > sizeof(file.name)) + return printf("Error: filename '%s' is too long\n", name.c_str()); + memcpy(file.name, name.c_str(), name.size()); + struct stat st; + if(lstat((input_dir + "/" + list[i]).c_str(), &st)) + return printf("Error: cannot stat file '%s'\n", list[i].c_str()); + file.size = st.st_size; + file.offset = tot_size; + tot_size += (file.size + 511) / 512; + crc = jz4760_crc(crc, (uint8_t *)&file, sizeof(file)); + fout.write((char *)&file, sizeof(file)); + } + // finish writing the 256 sectors + for(size_t i = list.size(); i < 2048; i++) + { + crc = jz4760_crc(crc, zero_sector, sizeof(jz4760_fw_file_t)); + fout.write((char *)zero_sector, sizeof(jz4760_fw_file_t)); + } + // write the files + for(size_t i = 0; i < list.size(); i++) + { + size_t sz; + uint8_t *data = read_file(input_dir + "/" + list[i], sz); + if(!data) + return printf("Error: cannot read file '%s'\n", list[i].c_str()); + crc = jz4760_crc(crc, data, sz); + fout.write((char *)data, sz); + delete data; + if(sz % 512) + { + crc = jz4760_crc(crc, zero_sector, 512 - (sz % 512)); + fout.write((char *)zero_sector, 512 - (sz % 512)); + } + } + // write the crc + fout.write((char *)&crc, sizeof(crc)); + fout.close(); + return 0; +} + +int descramble(int argc, char **argv) +{ + std::string input_file; + std::string output_file; + while(1) + { + int c = getopt(argc, argv, "i:o:"); + if(c == -1) + break; + switch(c) + { + case 'i': + input_file = optarg; + break; + case 'o': + output_file = optarg; + break; + default: + abort(); + } + } + if(optind != argc) + return printf("Error: extra arguments on command line\n"); + if(input_file.empty() || output_file.empty()) + return printf("Error: you need to specify the input and output files\n"); + size_t fw_size; + uint8_t *fw_buf = read_file(input_file, fw_size); + if(!fw_buf) + return 1; + for(size_t i = 0; i < fw_size; i++) + fw_buf[i] ^= jz4760_xor_key[i % JZ4760_XOR_KEY_SIZE]; + if(!write_file(output_file, fw_buf, fw_size)) + return 1; + return 0; +} + +void usage() +{ + printf("usage: [--pack|--unpack|--descramble] \n"); + printf(" unpack options:\n"); + printf(" -i Input file\n"); + printf(" -o Output directory\n"); + printf(" -v Verbose output\n"); + printf(" pack options:\n"); + printf(" -i Input directory\n"); + printf(" -o Output file\n"); + printf(" -m Machine flags\n"); + printf(" -v Verbose output\n"); + printf(" -t