| 1 | /* Add an uninitialized data section to an executable. |
| 2 | Copyright (C) 1999, 2001-2012 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Emacs. |
| 5 | |
| 6 | GNU Emacs is free software: you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation, either version 3 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | GNU Emacs is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
| 18 | |
| 19 | |
| 20 | Andrew Innes <andrewi@harlequin.co.uk> 04-Jan-1999 |
| 21 | based on code from unexw32.c |
| 22 | */ |
| 23 | |
| 24 | #include <stdlib.h> |
| 25 | #include <stdio.h> |
| 26 | #include <fcntl.h> |
| 27 | #include <time.h> |
| 28 | #ifdef __GNUC__ |
| 29 | #define _ANONYMOUS_UNION |
| 30 | #define _ANONYMOUS_STRUCT |
| 31 | #endif |
| 32 | #include <windows.h> |
| 33 | |
| 34 | /* Include relevant definitions from IMAGEHLP.H, which can be found |
| 35 | in \\win32sdk\mstools\samples\image\include\imagehlp.h. */ |
| 36 | |
| 37 | PIMAGE_NT_HEADERS |
| 38 | (__stdcall * pfnCheckSumMappedFile) (LPVOID BaseAddress, |
| 39 | DWORD FileLength, |
| 40 | LPDWORD HeaderSum, |
| 41 | LPDWORD CheckSum); |
| 42 | |
| 43 | #undef min |
| 44 | #undef max |
| 45 | #define min(x, y) (((x) < (y)) ? (x) : (y)) |
| 46 | #define max(x, y) (((x) > (y)) ? (x) : (y)) |
| 47 | |
| 48 | |
| 49 | /* File handling. */ |
| 50 | |
| 51 | typedef struct file_data { |
| 52 | const char *name; |
| 53 | unsigned long size; |
| 54 | HANDLE file; |
| 55 | HANDLE file_mapping; |
| 56 | unsigned char *file_base; |
| 57 | } file_data; |
| 58 | |
| 59 | int |
| 60 | open_input_file (file_data *p_file, const char *filename) |
| 61 | { |
| 62 | HANDLE file; |
| 63 | HANDLE file_mapping; |
| 64 | void *file_base; |
| 65 | unsigned long size, upper_size; |
| 66 | |
| 67 | file = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL, |
| 68 | OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); |
| 69 | if (file == INVALID_HANDLE_VALUE) |
| 70 | return FALSE; |
| 71 | |
| 72 | size = GetFileSize (file, &upper_size); |
| 73 | file_mapping = CreateFileMapping (file, NULL, PAGE_READONLY, |
| 74 | 0, size, NULL); |
| 75 | if (!file_mapping) |
| 76 | return FALSE; |
| 77 | |
| 78 | file_base = MapViewOfFile (file_mapping, FILE_MAP_READ, 0, 0, size); |
| 79 | if (file_base == 0) |
| 80 | return FALSE; |
| 81 | |
| 82 | p_file->name = filename; |
| 83 | p_file->size = size; |
| 84 | p_file->file = file; |
| 85 | p_file->file_mapping = file_mapping; |
| 86 | p_file->file_base = file_base; |
| 87 | |
| 88 | return TRUE; |
| 89 | } |
| 90 | |
| 91 | int |
| 92 | open_output_file (file_data *p_file, const char *filename, unsigned long size) |
| 93 | { |
| 94 | HANDLE file; |
| 95 | HANDLE file_mapping; |
| 96 | void *file_base; |
| 97 | |
| 98 | file = CreateFile (filename, GENERIC_READ | GENERIC_WRITE, 0, NULL, |
| 99 | CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0); |
| 100 | if (file == INVALID_HANDLE_VALUE) |
| 101 | return FALSE; |
| 102 | |
| 103 | file_mapping = CreateFileMapping (file, NULL, PAGE_READWRITE, |
| 104 | 0, size, NULL); |
| 105 | if (!file_mapping) |
| 106 | return FALSE; |
| 107 | |
| 108 | file_base = MapViewOfFile (file_mapping, FILE_MAP_WRITE, 0, 0, size); |
| 109 | if (file_base == 0) |
| 110 | return FALSE; |
| 111 | |
| 112 | p_file->name = filename; |
| 113 | p_file->size = size; |
| 114 | p_file->file = file; |
| 115 | p_file->file_mapping = file_mapping; |
| 116 | p_file->file_base = file_base; |
| 117 | |
| 118 | return TRUE; |
| 119 | } |
| 120 | |
| 121 | /* Close the system structures associated with the given file. */ |
| 122 | void |
| 123 | close_file_data (file_data *p_file) |
| 124 | { |
| 125 | UnmapViewOfFile (p_file->file_base); |
| 126 | CloseHandle (p_file->file_mapping); |
| 127 | /* For the case of output files, set final size. */ |
| 128 | SetFilePointer (p_file->file, p_file->size, NULL, FILE_BEGIN); |
| 129 | SetEndOfFile (p_file->file); |
| 130 | CloseHandle (p_file->file); |
| 131 | } |
| 132 | |
| 133 | |
| 134 | /* Routines to manipulate NT executable file sections. */ |
| 135 | |
| 136 | unsigned long |
| 137 | get_unrounded_section_size (PIMAGE_SECTION_HEADER p_section) |
| 138 | { |
| 139 | /* The true section size, before rounding, for an initialized data or |
| 140 | code section. (Supposedly some linkers swap the meaning of these |
| 141 | two values.) */ |
| 142 | return min (p_section->SizeOfRawData, |
| 143 | p_section->Misc.VirtualSize); |
| 144 | } |
| 145 | |
| 146 | /* Return pointer to section header for named section. */ |
| 147 | IMAGE_SECTION_HEADER * |
| 148 | find_section (const char *name, IMAGE_NT_HEADERS *nt_header) |
| 149 | { |
| 150 | PIMAGE_SECTION_HEADER section; |
| 151 | int i; |
| 152 | |
| 153 | section = IMAGE_FIRST_SECTION (nt_header); |
| 154 | |
| 155 | for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++) |
| 156 | { |
| 157 | if (strcmp (section->Name, name) == 0) |
| 158 | return section; |
| 159 | section++; |
| 160 | } |
| 161 | return NULL; |
| 162 | } |
| 163 | |
| 164 | /* Return pointer to section header for section containing the given |
| 165 | relative virtual address. */ |
| 166 | IMAGE_SECTION_HEADER * |
| 167 | rva_to_section (DWORD rva, IMAGE_NT_HEADERS * nt_header) |
| 168 | { |
| 169 | PIMAGE_SECTION_HEADER section; |
| 170 | int i; |
| 171 | |
| 172 | section = IMAGE_FIRST_SECTION (nt_header); |
| 173 | |
| 174 | for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++) |
| 175 | { |
| 176 | /* Some linkers (eg. the NT SDK linker I believe) swapped the |
| 177 | meaning of these two values - or rather, they ignored |
| 178 | VirtualSize entirely and always set it to zero. This affects |
| 179 | some very old exes (eg. gzip dated Dec 1993). Since |
| 180 | w32_executable_type relies on this function to work reliably, |
| 181 | we need to cope with this. */ |
| 182 | DWORD real_size = max (section->SizeOfRawData, |
| 183 | section->Misc.VirtualSize); |
| 184 | if (rva >= section->VirtualAddress |
| 185 | && rva < section->VirtualAddress + real_size) |
| 186 | return section; |
| 187 | section++; |
| 188 | } |
| 189 | return NULL; |
| 190 | } |
| 191 | |
| 192 | /* Return pointer to section header for section containing the given |
| 193 | offset in its raw data area. */ |
| 194 | IMAGE_SECTION_HEADER * |
| 195 | offset_to_section (DWORD offset, IMAGE_NT_HEADERS * nt_header) |
| 196 | { |
| 197 | PIMAGE_SECTION_HEADER section; |
| 198 | int i; |
| 199 | |
| 200 | section = IMAGE_FIRST_SECTION (nt_header); |
| 201 | |
| 202 | for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++) |
| 203 | { |
| 204 | if (offset >= section->PointerToRawData |
| 205 | && offset < section->PointerToRawData + section->SizeOfRawData) |
| 206 | return section; |
| 207 | section++; |
| 208 | } |
| 209 | return NULL; |
| 210 | } |
| 211 | |
| 212 | /* Return offset to an object in dst, given offset in src. We assume |
| 213 | there is at least one section in both src and dst images, and that |
| 214 | the some sections may have been added to dst (after sections in src). */ |
| 215 | static DWORD |
| 216 | relocate_offset (DWORD offset, |
| 217 | IMAGE_NT_HEADERS * src_nt_header, |
| 218 | IMAGE_NT_HEADERS * dst_nt_header) |
| 219 | { |
| 220 | PIMAGE_SECTION_HEADER src_section = IMAGE_FIRST_SECTION (src_nt_header); |
| 221 | PIMAGE_SECTION_HEADER dst_section = IMAGE_FIRST_SECTION (dst_nt_header); |
| 222 | int i = 0; |
| 223 | |
| 224 | while (offset >= src_section->PointerToRawData) |
| 225 | { |
| 226 | if (offset < src_section->PointerToRawData + src_section->SizeOfRawData) |
| 227 | break; |
| 228 | i++; |
| 229 | if (i == src_nt_header->FileHeader.NumberOfSections) |
| 230 | { |
| 231 | /* Handle offsets after the last section. */ |
| 232 | dst_section = IMAGE_FIRST_SECTION (dst_nt_header); |
| 233 | dst_section += dst_nt_header->FileHeader.NumberOfSections - 1; |
| 234 | while (dst_section->PointerToRawData == 0) |
| 235 | dst_section--; |
| 236 | while (src_section->PointerToRawData == 0) |
| 237 | src_section--; |
| 238 | return offset |
| 239 | + (dst_section->PointerToRawData + dst_section->SizeOfRawData) |
| 240 | - (src_section->PointerToRawData + src_section->SizeOfRawData); |
| 241 | } |
| 242 | src_section++; |
| 243 | dst_section++; |
| 244 | } |
| 245 | return offset + |
| 246 | (dst_section->PointerToRawData - src_section->PointerToRawData); |
| 247 | } |
| 248 | |
| 249 | #define OFFSET_TO_RVA(offset, section) \ |
| 250 | (section->VirtualAddress + ((DWORD)(offset) - section->PointerToRawData)) |
| 251 | |
| 252 | #define RVA_TO_OFFSET(rva, section) \ |
| 253 | (section->PointerToRawData + ((DWORD)(rva) - section->VirtualAddress)) |
| 254 | |
| 255 | #define RVA_TO_SECTION_OFFSET(rva, section) \ |
| 256 | ((DWORD)(rva) - section->VirtualAddress) |
| 257 | |
| 258 | /* Convert address in executing image to RVA. */ |
| 259 | #define PTR_TO_RVA(ptr) ((DWORD)(ptr) - (DWORD) GetModuleHandle (NULL)) |
| 260 | |
| 261 | #define PTR_TO_OFFSET(ptr, pfile_data) \ |
| 262 | ((unsigned const char *)(ptr) - (pfile_data)->file_base) |
| 263 | |
| 264 | #define OFFSET_TO_PTR(offset, pfile_data) \ |
| 265 | ((pfile_data)->file_base + (DWORD)(offset)) |
| 266 | |
| 267 | #define ROUND_UP(p, align) (((DWORD)(p) + (align)-1) & ~((align)-1)) |
| 268 | #define ROUND_DOWN(p, align) ((DWORD)(p) & ~((align)-1)) |
| 269 | |
| 270 | |
| 271 | static void |
| 272 | copy_executable_and_add_section (file_data *p_infile, |
| 273 | file_data *p_outfile, |
| 274 | const char *new_section_name, |
| 275 | DWORD new_section_size) |
| 276 | { |
| 277 | unsigned char *dst; |
| 278 | PIMAGE_DOS_HEADER dos_header; |
| 279 | PIMAGE_NT_HEADERS nt_header; |
| 280 | PIMAGE_NT_HEADERS dst_nt_header; |
| 281 | PIMAGE_SECTION_HEADER section; |
| 282 | PIMAGE_SECTION_HEADER dst_section; |
| 283 | DWORD offset; |
| 284 | int i; |
| 285 | int be_verbose = GetEnvironmentVariable ("DEBUG_DUMP", NULL, 0) > 0; |
| 286 | |
| 287 | #define COPY_CHUNK(message, src, size, verbose) \ |
| 288 | do { \ |
| 289 | unsigned const char *s = (void *)(src); \ |
| 290 | unsigned long count = (size); \ |
| 291 | if (verbose) \ |
| 292 | { \ |
| 293 | printf ("%s\n", (message)); \ |
| 294 | printf ("\t0x%08x Offset in input file.\n", s - p_infile->file_base); \ |
| 295 | printf ("\t0x%08x Offset in output file.\n", dst - p_outfile->file_base); \ |
| 296 | printf ("\t0x%08x Size in bytes.\n", count); \ |
| 297 | } \ |
| 298 | memcpy (dst, s, count); \ |
| 299 | dst += count; \ |
| 300 | } while (0) |
| 301 | |
| 302 | #define DST_TO_OFFSET() PTR_TO_OFFSET (dst, p_outfile) |
| 303 | #define ROUND_UP_DST_AND_ZERO(align) \ |
| 304 | do { \ |
| 305 | unsigned char *newdst = p_outfile->file_base \ |
| 306 | + ROUND_UP (DST_TO_OFFSET (), (align)); \ |
| 307 | /* Zero the alignment slop; it may actually initialize real data. */ \ |
| 308 | memset (dst, 0, newdst - dst); \ |
| 309 | dst = newdst; \ |
| 310 | } while (0) |
| 311 | |
| 312 | /* Copy the source image sequentially, ie. section by section after |
| 313 | copying the headers and section table, to simplify the process of |
| 314 | adding an extra section table entry (which might force the raw |
| 315 | section data to be relocated). |
| 316 | |
| 317 | Note that dst is updated implicitly by each COPY_CHUNK. */ |
| 318 | |
| 319 | dos_header = (PIMAGE_DOS_HEADER) p_infile->file_base; |
| 320 | nt_header = (PIMAGE_NT_HEADERS) (((unsigned long) dos_header) + |
| 321 | dos_header->e_lfanew); |
| 322 | section = IMAGE_FIRST_SECTION (nt_header); |
| 323 | |
| 324 | dst = (unsigned char *) p_outfile->file_base; |
| 325 | |
| 326 | COPY_CHUNK ("Copying DOS header...", dos_header, |
| 327 | (DWORD) nt_header - (DWORD) dos_header, be_verbose); |
| 328 | dst_nt_header = (PIMAGE_NT_HEADERS) dst; |
| 329 | COPY_CHUNK ("Copying NT header...", nt_header, |
| 330 | (DWORD) section - (DWORD) nt_header, be_verbose); |
| 331 | dst_section = (PIMAGE_SECTION_HEADER) dst; |
| 332 | COPY_CHUNK ("Copying section table...", section, |
| 333 | nt_header->FileHeader.NumberOfSections * sizeof (*section), |
| 334 | be_verbose); |
| 335 | |
| 336 | /* To improve the efficiency of demand loading, make the file |
| 337 | alignment match the section alignment (VC++ 6.0 does this by |
| 338 | default anyway). */ |
| 339 | dst_nt_header->OptionalHeader.FileAlignment = |
| 340 | dst_nt_header->OptionalHeader.SectionAlignment; |
| 341 | |
| 342 | /* Add an uninitialized data section at the end, of the specified name |
| 343 | and virtual size. */ |
| 344 | if (find_section (new_section_name, nt_header) == NULL) |
| 345 | /* Leave room for extra section table entry; filled in below. */ |
| 346 | dst += sizeof (*section); |
| 347 | else |
| 348 | new_section_name = NULL; |
| 349 | |
| 350 | /* Align the first section's raw data area, and set the header size |
| 351 | field accordingly. */ |
| 352 | ROUND_UP_DST_AND_ZERO (dst_nt_header->OptionalHeader.FileAlignment); |
| 353 | dst_nt_header->OptionalHeader.SizeOfHeaders = DST_TO_OFFSET (); |
| 354 | |
| 355 | for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++) |
| 356 | { |
| 357 | char msg[100]; |
| 358 | /* Windows section names are fixed 8-char strings, only |
| 359 | zero-terminated if the name is shorter than 8 characters. */ |
| 360 | sprintf (msg, "Copying raw data for %.8s...", section->Name); |
| 361 | |
| 362 | /* Update the file-relative offset for this section's raw data (if |
| 363 | it has any) in case things have been relocated; we will update |
| 364 | the other offsets below once we know where everything is. */ |
| 365 | if (dst_section->PointerToRawData) |
| 366 | dst_section->PointerToRawData = DST_TO_OFFSET (); |
| 367 | |
| 368 | /* Can always copy the original raw data. */ |
| 369 | COPY_CHUNK |
| 370 | (msg, OFFSET_TO_PTR (section->PointerToRawData, p_infile), |
| 371 | section->SizeOfRawData, be_verbose); |
| 372 | |
| 373 | /* Round up the raw data size to the new alignment. */ |
| 374 | dst_section->SizeOfRawData = |
| 375 | ROUND_UP (dst_section->SizeOfRawData, |
| 376 | dst_nt_header->OptionalHeader.FileAlignment); |
| 377 | |
| 378 | /* Align the next section's raw data area. */ |
| 379 | ROUND_UP_DST_AND_ZERO (dst_nt_header->OptionalHeader.FileAlignment); |
| 380 | |
| 381 | section++; |
| 382 | dst_section++; |
| 383 | } |
| 384 | |
| 385 | /* Add the extra section entry (which adds no raw data). */ |
| 386 | if (new_section_name != NULL) |
| 387 | { |
| 388 | dst_nt_header->FileHeader.NumberOfSections++; |
| 389 | dst_nt_header->OptionalHeader.SizeOfImage += new_section_size; |
| 390 | strncpy (dst_section->Name, new_section_name, sizeof (dst_section->Name)); |
| 391 | dst_section->VirtualAddress = |
| 392 | section[-1].VirtualAddress |
| 393 | + ROUND_UP (section[-1].Misc.VirtualSize, |
| 394 | dst_nt_header->OptionalHeader.SectionAlignment); |
| 395 | dst_section->Misc.VirtualSize = new_section_size; |
| 396 | dst_section->PointerToRawData = 0; |
| 397 | dst_section->SizeOfRawData = 0; |
| 398 | dst_section->Characteristics = |
| 399 | IMAGE_SCN_CNT_UNINITIALIZED_DATA |
| 400 | | IMAGE_SCN_MEM_READ |
| 401 | | IMAGE_SCN_MEM_WRITE; |
| 402 | } |
| 403 | |
| 404 | /* Copy remainder of source image. */ |
| 405 | section--; |
| 406 | offset = ROUND_UP (section->PointerToRawData + section->SizeOfRawData, |
| 407 | nt_header->OptionalHeader.FileAlignment); |
| 408 | COPY_CHUNK |
| 409 | ("Copying remainder of executable...", |
| 410 | OFFSET_TO_PTR (offset, p_infile), |
| 411 | p_infile->size - offset, be_verbose); |
| 412 | |
| 413 | /* Final size for new image. */ |
| 414 | p_outfile->size = DST_TO_OFFSET (); |
| 415 | |
| 416 | /* Now patch up remaining file-relative offsets. */ |
| 417 | section = IMAGE_FIRST_SECTION (nt_header); |
| 418 | dst_section = IMAGE_FIRST_SECTION (dst_nt_header); |
| 419 | |
| 420 | #define ADJUST_OFFSET(var) \ |
| 421 | do { \ |
| 422 | if ((var) != 0) \ |
| 423 | (var) = relocate_offset ((var), nt_header, dst_nt_header); \ |
| 424 | } while (0) |
| 425 | |
| 426 | dst_nt_header->OptionalHeader.SizeOfInitializedData = 0; |
| 427 | dst_nt_header->OptionalHeader.SizeOfUninitializedData = 0; |
| 428 | for (i = 0; i < dst_nt_header->FileHeader.NumberOfSections; i++) |
| 429 | { |
| 430 | /* Recompute data sizes for completeness. */ |
| 431 | if (dst_section[i].Characteristics & IMAGE_SCN_CNT_INITIALIZED_DATA) |
| 432 | dst_nt_header->OptionalHeader.SizeOfInitializedData += |
| 433 | ROUND_UP (dst_section[i].Misc.VirtualSize, dst_nt_header->OptionalHeader.FileAlignment); |
| 434 | else if (dst_section[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA) |
| 435 | dst_nt_header->OptionalHeader.SizeOfUninitializedData += |
| 436 | ROUND_UP (dst_section[i].Misc.VirtualSize, dst_nt_header->OptionalHeader.FileAlignment); |
| 437 | |
| 438 | ADJUST_OFFSET (dst_section[i].PointerToLinenumbers); |
| 439 | } |
| 440 | |
| 441 | ADJUST_OFFSET (dst_nt_header->FileHeader.PointerToSymbolTable); |
| 442 | |
| 443 | /* Update offsets in debug directory entries. */ |
| 444 | { |
| 445 | IMAGE_DATA_DIRECTORY debug_dir = |
| 446 | dst_nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG]; |
| 447 | PIMAGE_DEBUG_DIRECTORY debug_entry; |
| 448 | |
| 449 | section = rva_to_section (debug_dir.VirtualAddress, dst_nt_header); |
| 450 | if (section) |
| 451 | { |
| 452 | debug_entry = (PIMAGE_DEBUG_DIRECTORY) |
| 453 | (RVA_TO_OFFSET (debug_dir.VirtualAddress, section) + p_outfile->file_base); |
| 454 | debug_dir.Size /= sizeof (IMAGE_DEBUG_DIRECTORY); |
| 455 | |
| 456 | for (i = 0; i < debug_dir.Size; i++, debug_entry++) |
| 457 | ADJUST_OFFSET (debug_entry->PointerToRawData); |
| 458 | } |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | |
| 463 | int |
| 464 | main (int argc, char **argv) |
| 465 | { |
| 466 | file_data in_file, out_file; |
| 467 | char out_filename[MAX_PATH], in_filename[MAX_PATH]; |
| 468 | unsigned long size; |
| 469 | PIMAGE_DOS_HEADER dos_header; |
| 470 | PIMAGE_NT_HEADERS nt_header; |
| 471 | |
| 472 | #define OLD_NAME argv[1] |
| 473 | #define NEW_NAME argv[2] |
| 474 | #define SECTION_NAME argv[3] |
| 475 | #define SECTION_SIZE argv[4] |
| 476 | |
| 477 | strcpy (in_filename, OLD_NAME); |
| 478 | strcpy (out_filename, NEW_NAME); |
| 479 | |
| 480 | printf ("Dumping from %s\n", in_filename); |
| 481 | printf (" to %s\n", out_filename); |
| 482 | |
| 483 | /* Open the undumped executable file. */ |
| 484 | if (!open_input_file (&in_file, in_filename)) |
| 485 | { |
| 486 | printf ("Failed to open %s (%d)...bailing.\n", |
| 487 | in_filename, GetLastError ()); |
| 488 | exit (1); |
| 489 | } |
| 490 | dos_header = (PIMAGE_DOS_HEADER) in_file.file_base; |
| 491 | nt_header = (PIMAGE_NT_HEADERS) ((char *) dos_header + dos_header->e_lfanew); |
| 492 | /* Allow for expansion due to increasing file align to section align. |
| 493 | We can overestimate here, since close_file_data will update the |
| 494 | size exactly. */ |
| 495 | size = in_file.size |
| 496 | + nt_header->OptionalHeader.SectionAlignment |
| 497 | * nt_header->FileHeader.NumberOfSections; |
| 498 | if (!open_output_file (&out_file, out_filename, size)) |
| 499 | { |
| 500 | printf ("Failed to open %s (%d)...bailing.\n", |
| 501 | out_filename, GetLastError ()); |
| 502 | exit (1); |
| 503 | } |
| 504 | |
| 505 | copy_executable_and_add_section (&in_file, &out_file, |
| 506 | SECTION_NAME, |
| 507 | atoi (SECTION_SIZE) * 1024 * 1024); |
| 508 | |
| 509 | /* Patch up header fields; profiler is picky about this. */ |
| 510 | { |
| 511 | HANDLE hImagehelp = LoadLibrary ("imagehlp.dll"); |
| 512 | DWORD headersum; |
| 513 | DWORD checksum; |
| 514 | |
| 515 | dos_header = (PIMAGE_DOS_HEADER) out_file.file_base; |
| 516 | nt_header = (PIMAGE_NT_HEADERS) ((char *) dos_header + dos_header->e_lfanew); |
| 517 | |
| 518 | nt_header->OptionalHeader.CheckSum = 0; |
| 519 | // nt_header->FileHeader.TimeDateStamp = time (NULL); |
| 520 | // dos_header->e_cp = size / 512; |
| 521 | // nt_header->OptionalHeader.SizeOfImage = size; |
| 522 | |
| 523 | pfnCheckSumMappedFile = (void *) GetProcAddress (hImagehelp, "CheckSumMappedFile"); |
| 524 | if (pfnCheckSumMappedFile) |
| 525 | { |
| 526 | // nt_header->FileHeader.TimeDateStamp = time (NULL); |
| 527 | pfnCheckSumMappedFile (out_file.file_base, |
| 528 | out_file.size, |
| 529 | &headersum, |
| 530 | &checksum); |
| 531 | nt_header->OptionalHeader.CheckSum = checksum; |
| 532 | } |
| 533 | FreeLibrary (hImagehelp); |
| 534 | } |
| 535 | |
| 536 | close_file_data (&in_file); |
| 537 | close_file_data (&out_file); |
| 538 | |
| 539 | return 0; |
| 540 | } |
| 541 | |
| 542 | /* eof */ |
| 543 | |