2 * Copyright (C) 2014 Michael Brown <mbrown@fensystems.co.uk>.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
30 #include <ipxe/efi/efi.h>
31 #include <ipxe/efi/IndustryStandard/PeImage.h>
33 #define eprintf(...) fprintf ( stderr, __VA_ARGS__ )
35 /** Command-line options */
39 /** EFI fat binary file header */
40 struct efifatbin_file_header {
45 } __attribute__ (( packed ));
47 /** EFI fat binary signature */
48 #define EFIFATBIN_SIGNATURE 0x0ef1fab9
50 /** EFI fat binary image header */
51 struct efifatbin_image_header {
60 } __attribute__ (( packed ));
62 /** EFI fat binary default flags */
63 #define EFIFATBIN_FLAGS 0x0000000300000007ULL
65 /** EFI fat binary 64-bit flag */
66 #define EFIFATBIN_64BIT 0x0000000001000000ULL
71 * @v len Length of memory to allocate
72 * @ret ptr Pointer to allocated memory
74 static void * xmalloc ( size_t len ) {
79 eprintf ( "Could not allocate %zd bytes\n", len );
87 * Generate EFI fat binary
89 * @v count Number of input files
90 * @v infile_names Input filenames
91 * @v outfile_name Output filename
93 static void make_efifatbin ( unsigned int count, char **infile_names,
94 const char *outfile_name ) {
97 struct stat stat[count];
99 struct efifatbin_file_header file_header;
100 struct efifatbin_image_header header[count];
102 EFI_IMAGE_DOS_HEADER *dos;
104 EFI_IMAGE_NT_HEADERS32 nt32;
105 EFI_IMAGE_NT_HEADERS64 nt64;
109 /* Generate file header */
110 file_header.signature = EFIFATBIN_SIGNATURE;
111 file_header.count = count;
112 offset = ( sizeof ( file_header ) + sizeof ( header ) );
114 /* Process input files */
115 for ( i = 0 ; i < count ; i++ ) {
117 /* Open input file */
118 infile[i] = fopen ( infile_names[i], "r" );
120 eprintf ( "Could not open %s for reading: %s\n",
121 infile_names[i], strerror ( errno ) );
125 /* Determine PE file size */
126 if ( fstat ( fileno ( infile[i] ), &stat[i] ) != 0 ) {
127 eprintf ( "Could not stat %s: %s\n",
128 infile_names[i], strerror ( errno ) );
132 /* Allocate buffer and read in PE file */
133 buf[i] = xmalloc ( stat[i].st_size );
134 if ( fread ( buf[i], stat[i].st_size, 1, infile[i] ) != 1 ) {
135 eprintf ( "Could not read %s: %s\n",
136 infile_names[i], strerror ( errno ) );
140 /* Close input file */
141 fclose ( infile[i] );
143 /* Generate image header */
144 header[i].flags = EFIFATBIN_FLAGS;
145 header[i].offset = offset;
146 header[i].len = stat[i].st_size;
149 /* Determine architecture */
151 nt = ( buf[i] + dos->e_lfanew );
152 if ( nt->nt32.FileHeader.Machine == EFI_IMAGE_MACHINE_X64 )
153 header[i].flags |= EFIFATBIN_64BIT;
155 /* Allow space for this image */
156 offset += stat[i].st_size;
159 /* Open output file */
160 outfile = fopen ( outfile_name, "w" );
162 eprintf ( "Could not open %s for writing: %s\n",
163 outfile_name, strerror ( errno ) );
167 /* Write fat binary header */
168 if ( fwrite ( &file_header, sizeof ( file_header ), 1, outfile ) != 1 ){
169 eprintf ( "Could not write %s: %s\n",
170 outfile_name, strerror ( errno ) );
173 for ( i = 0 ; i < count ; i++ ) {
174 if ( fwrite ( &header[i], sizeof ( header[i] ), 1,
176 eprintf ( "Could not write %s: %s\n",
177 outfile_name, strerror ( errno ) );
183 for ( i = 0 ; i < count ; i++ ) {
184 if ( fwrite ( buf[i], stat[i].st_size, 1, outfile ) != 1 ) {
185 eprintf ( "Could not write %s: %s\n",
186 outfile_name, strerror ( errno ) );
191 /* Close output file */
198 * @v program_name Program name
200 static void print_help ( const char *program_name ) {
201 eprintf ( "Syntax: %s infile [infile...] outfile\n", program_name );
205 * Parse command-line options
207 * @v argc Argument count
208 * @v argv Argument list
209 * @v opts Options structure to populate
211 static int parse_options ( const int argc, char **argv,
212 struct options *opts __attribute__ (( unused )) ) {
216 int option_index = 0;
217 static struct option long_options[] = {
218 { "help", 0, NULL, 'h' },
222 if ( ( c = getopt_long ( argc, argv, "h",
224 &option_index ) ) == -1 ) {
230 print_help ( argv[0] );
240 int main ( int argc, char **argv ) {
246 /* Parse command-line arguments */
247 memset ( &opts, 0, sizeof ( opts ) );
248 infile_index = parse_options ( argc, argv, &opts );
249 outfile_index = ( argc - 1 );
250 count = ( outfile_index - infile_index );
252 print_help ( argv[0] );
256 /* Generate fat binary */
257 make_efifatbin ( count, &argv[infile_index], argv[outfile_index] );