Mercurial > hg > xemacs-beta
annotate src/unexnt.c @ 5313:5ed261fd2bd9
Unrool a load-time loop at macro expansion time, cl-macs.el
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (inline-side-effect-free-compiler-macros):
Unroll a loop here at macro-expansion time, so these compiler
macros are compiled. Use #'eql instead of #'eq in a couple of
places for better style.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Wed, 29 Dec 2010 23:43:10 +0000 |
| parents | 6f2158fa75ed |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 613 | 1 /* unexec for XEmacs on Windows NT. |
| 428 | 2 Copyright (C) 1994 Free Software Foundation, Inc. |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4854
diff
changeset
|
3 Copyright (C) 2002, 2010 Ben Wing. |
| 428 | 4 |
| 5 This file is part of XEmacs. | |
| 6 | |
| 7 XEmacs is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 9 Free Software Foundation; either version 2, or (at your option) any | |
| 10 later version. | |
| 11 | |
| 12 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with XEmacs; see the file COPYING. If not, write to the Free | |
| 19 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
| 20 02111-1307, USA. | |
| 21 | |
| 22 Geoff Voelker (voelker@cs.washington.edu) 8-12-94 */ | |
| 23 | |
| 24 /* Adapted for XEmacs by David Hobley <david@spook-le0.cia.com.au> */ | |
| 25 | |
| 814 | 26 /* This file has been Mule-ized, Ben Wing, 4-13-02. */ |
| 27 | |
| 428 | 28 /* The linkers that come with MSVC >= 4.0 merge .bss into .data and reorder |
| 29 * uninitialised data so that the .data section looks like: | |
| 30 * | |
| 31 * crt0 initialised data | |
| 32 * emacs initialised data | |
| 33 * <my_edata> | |
| 34 * library initialised data | |
| 35 * <start of bss part of .data> | |
| 36 * emacs static uninitialised data | |
| 37 * library static uninitialised data | |
| 38 * emacs global uninitialised data | |
| 39 * <my_ebss> | |
| 40 * library global uninitialised data | |
| 41 * | |
| 42 * This means that we can't use the normal my_ebss in lastfile.c trick to | |
| 43 * differentiate between unitialised data that belongs to emacs and | |
| 44 * uninitialised data that belongs to system libraries. This is bad because | |
| 45 * we do want to initialise the emacs data, but we don't want to initialise | |
| 46 * the system library data. | |
| 47 * | |
| 48 * To solve this problem using MSVC >= 5.0 we use a pragma directive to tell | |
| 49 * the compiler to put emacs's data (both initialised and uninitialised) in | |
| 50 * a separate section in the executable, and we only dump that section. This | |
| 51 * means that all files that define initialized data must include config.h | |
| 52 * to pick up the pragma. We don't try to make any part of that section | |
| 53 * read-only. | |
| 54 * | |
| 55 * This pragma directive isn't supported by the MSVC 4.x compiler. Instead, | |
| 56 * we dump crt0 initialised data and library static uninitialised data in | |
| 57 * addition to the emacs data. This is wrong, but we appear to be able to | |
| 58 * get away with it. A proper fix might involve the introduction of a static | |
| 59 * version of my_ebss in lastfile.c and a new firstfile.c file. jhar */ | |
| 60 | |
| 61 #include <config.h> | |
| 442 | 62 #include "lisp.h" |
| 63 | |
| 558 | 64 #include "sysfile.h" |
| 442 | 65 #include "syswindows.h" |
| 66 | |
| 428 | 67 /* From IMAGEHLP.H which is not installed by default by MSVC < 5 */ |
| 68 /* The IMAGEHLP.DLL library is not distributed by default with Windows95 */ | |
| 442 | 69 typedef PIMAGE_NT_HEADERS |
| 70 (__stdcall * pfnCheckSumMappedFile_t) (LPVOID BaseAddress, DWORD FileLength, | |
| 71 LPDWORD HeaderSum, LPDWORD CheckSum); | |
| 72 | |
| 428 | 73 |
| 74 #if 0 | |
| 75 extern BOOL ctrl_c_handler (unsigned long type); | |
| 76 #endif | |
| 77 | |
| 442 | 78 /* Sync with FSF Emacs 19.34.6 |
| 79 note: struct file_data is now defined in nt.h */ | |
| 428 | 80 |
| 81 enum { | |
| 82 HEAP_UNINITIALIZED = 1, | |
| 83 HEAP_UNLOADED, | |
| 84 HEAP_LOADED | |
| 85 }; | |
| 86 | |
| 87 /* Basically, our "initialized" flag. */ | |
| 88 int heap_state = HEAP_UNINITIALIZED; | |
| 89 | |
| 90 /* So we can find our heap in the file to recreate it. */ | |
| 91 unsigned long heap_index_in_executable = UNINIT_LONG; | |
| 92 | |
| 93 void get_section_info (file_data *p_file); | |
| 94 void copy_executable_and_dump_data_section (file_data *, file_data *); | |
| 95 void dump_bss_and_heap (file_data *p_infile, file_data *p_outfile); | |
| 96 | |
| 97 /* Cached info about the .data section in the executable. */ | |
| 98 PUCHAR data_start_va = UNINIT_PTR; | |
| 99 DWORD data_start_file = UNINIT_LONG; | |
| 100 DWORD data_size = UNINIT_LONG; | |
| 101 | |
| 102 /* Cached info about the .bss section in the executable. */ | |
| 103 PUCHAR bss_start = UNINIT_PTR; | |
| 104 DWORD bss_size = UNINIT_LONG; | |
| 105 | |
| 106 /* Startup code for running on NT. When we are running as the dumped | |
| 107 version, we need to bootstrap our heap and .bss section into our | |
| 108 address space before we can actually hand off control to the startup | |
| 109 code supplied by NT (primarily because that code relies upon malloc ()). */ | |
| 440 | 110 |
| 111 /* ********************** | |
| 1204 | 112 Hackers please remember, this _start() thingy is *not* called either |
| 113 when dumping portably, or when running from temacs! Do not put | |
| 440 | 114 significant XEmacs initialization here! |
| 115 ********************** */ | |
| 116 | |
| 1204 | 117 EXTERN_C void mainCRTStartup (void); |
| 118 | |
| 119 EXTERN_C int _start (void); | |
| 120 | |
| 121 int | |
| 428 | 122 _start (void) |
| 123 { | |
| 124 /* Cache system info, e.g., the NT page size. */ | |
| 125 cache_system_info (); | |
| 814 | 126 /* Set OS type, so that tchar stuff below works */ |
| 127 init_win32_very_early (); | |
| 428 | 128 |
| 129 /* If we're a dumped version of emacs then we need to recreate | |
| 130 our heap and play tricks with our .bss section. Do this before | |
| 131 start up. (WARNING: Do not put any code before this section | |
| 132 that relies upon malloc () and runs in the dumped version. It | |
| 133 won't work.) */ | |
| 134 if (heap_state == HEAP_UNLOADED) | |
| 135 { | |
| 4854 | 136 Extbyte executable_path[PATH_MAX_TCHAR]; |
| 428 | 137 |
| 814 | 138 /* Don't use mswindows_get_module_file_name() because it uses |
| 139 xmalloc() */ | |
| 2421 | 140 if (qxeGetModuleFileName (NULL, executable_path, _MAX_PATH) == 0) |
| 428 | 141 { |
| 142 exit (1); | |
| 143 } | |
| 144 | |
| 440 | 145 /* #### This is super-bogus. When I rename xemacs.exe, |
| 146 the renamed file still loads its heap from xemacs.exe --kkm */ | |
| 147 #if 0 | |
| 148 { | |
| 814 | 149 Extbyte *p; |
| 150 | |
| 440 | 151 /* To allow profiling, make sure executable_path names the .exe |
| 152 file, not the file created by the profiler */ | |
| 2421 | 153 p = qxetcsrchr (executable_path, '\\'); |
| 154 qxetcscpy (p + 1, XETEXT (PATH_PROGNAME ".exe")); | |
| 440 | 155 } |
| 156 #endif | |
| 428 | 157 |
| 158 recreate_heap (executable_path); | |
| 159 heap_state = HEAP_LOADED; | |
| 160 } | |
| 161 | |
| 440 | 162 /* #### This is bogus, too. _fmode is set to different values |
| 163 when we run `xemacs' and `temacs run-emacs'. The sooner we | |
| 164 hit and fix all the weirdities this causes us, the better --kkm */ | |
| 165 #if 0 | |
| 428 | 166 /* The default behavior is to treat files as binary and patch up |
| 442 | 167 text files appropriately. */ |
| 428 | 168 _fmode = O_BINARY; |
| 440 | 169 #endif |
| 428 | 170 |
| 171 #if 0 | |
| 172 /* This prevents ctrl-c's in shells running while we're suspended from | |
| 173 having us exit. */ | |
| 174 SetConsoleCtrlHandler ((PHANDLER_ROUTINE) ctrl_c_handler, TRUE); | |
| 175 #endif | |
| 176 | |
| 177 mainCRTStartup (); | |
| 1204 | 178 return 0; /* not reached? */ |
| 428 | 179 } |
| 180 | |
| 181 /* Dump out .data and .bss sections into a new executable. */ | |
| 442 | 182 int |
| 2286 | 183 unexec (Ibyte *new_name, Ibyte *old_name, unsigned int UNUSED (start_data), |
| 184 unsigned int UNUSED (start_bss), unsigned int UNUSED (entry_address)) | |
| 428 | 185 { |
| 186 file_data in_file, out_file; | |
| 867 | 187 Ibyte *out_filename = alloca_ibytes (qxestrlen (new_name) + 10); |
| 188 Ibyte *in_filename = alloca_ibytes (qxestrlen (old_name) + 10); | |
| 428 | 189 unsigned long size; |
| 867 | 190 Ibyte *ptr; |
| 442 | 191 HINSTANCE hImagehelp; |
| 428 | 192 |
| 193 /* Make sure that the input and output filenames have the | |
| 194 ".exe" extension...patch them up if they don't. */ | |
| 814 | 195 qxestrcpy (in_filename, old_name); |
| 196 ptr = in_filename + qxestrlen (in_filename) - 4; | |
| 2367 | 197 if (qxestrcmp_ascii (ptr, ".exe")) |
| 198 qxestrcat_ascii (in_filename, ".exe"); | |
| 428 | 199 |
| 814 | 200 qxestrcpy (out_filename, new_name); |
| 201 ptr = out_filename + qxestrlen (out_filename) - 4; | |
| 2367 | 202 if (qxestrcmp_ascii (ptr, ".exe")) |
| 203 qxestrcat_ascii (out_filename, ".exe"); | |
| 428 | 204 |
| 814 | 205 stdout_out ("Dumping from %s\n", in_filename); |
| 206 stdout_out (" to %s\n", out_filename); | |
| 428 | 207 |
| 208 /* We need to round off our heap to NT's allocation unit (64KB). */ | |
| 209 round_heap (get_allocation_unit ()); | |
| 210 | |
| 211 /* Open the undumped executable file. */ | |
| 212 if (!open_input_file (&in_file, in_filename)) | |
| 213 { | |
| 814 | 214 stdout_out ("Failed to open %s (%d)...bailing.\n", |
| 215 in_filename, GetLastError ()); | |
| 428 | 216 exit (1); |
| 217 } | |
| 218 | |
| 219 /* Get the interesting section info, like start and size of .bss... */ | |
| 220 get_section_info (&in_file); | |
| 221 | |
| 222 /* The size of the dumped executable is the size of the original | |
| 223 executable plus the size of the heap and the size of the .bss section. */ | |
| 224 heap_index_in_executable = (unsigned long) | |
| 2367 | 225 round_to_next ((Rawbyte *) in_file.size, get_allocation_unit ()); |
| 428 | 226 size = heap_index_in_executable + get_committed_heap_size () + bss_size; |
| 227 if (!open_output_file (&out_file, out_filename, size)) | |
| 228 { | |
| 814 | 229 stdout_out ("Failed to open %s (%d)...bailing.\n", |
| 230 out_filename, GetLastError ()); | |
| 428 | 231 exit (1); |
| 232 } | |
| 233 | |
| 234 /* Set the flag (before dumping). */ | |
| 235 heap_state = HEAP_UNLOADED; | |
| 236 | |
| 237 copy_executable_and_dump_data_section (&in_file, &out_file); | |
| 238 dump_bss_and_heap (&in_file, &out_file); | |
| 239 | |
| 240 /* Patch up header fields; profiler is picky about this. */ | |
| 812 | 241 hImagehelp = LoadLibraryA ("imagehlp.dll"); |
| 428 | 242 if (hImagehelp) |
| 243 { | |
| 244 PIMAGE_DOS_HEADER dos_header; | |
| 245 PIMAGE_NT_HEADERS nt_header; | |
| 442 | 246 |
| 428 | 247 DWORD headersum; |
| 248 DWORD checksum; | |
| 442 | 249 pfnCheckSumMappedFile_t pfnCheckSumMappedFile; |
| 428 | 250 |
| 251 dos_header = (PIMAGE_DOS_HEADER) out_file.file_base; | |
| 2367 | 252 nt_header = (PIMAGE_NT_HEADERS) ((Rawbyte *) dos_header + |
| 814 | 253 dos_header->e_lfanew); |
| 428 | 254 |
| 255 nt_header->OptionalHeader.CheckSum = 0; | |
| 442 | 256 #if 0 |
| 257 nt_header->FileHeader.TimeDateStamp = time (NULL); | |
| 258 dos_header->e_cp = size / 512; | |
| 259 nt_header->OptionalHeader.SizeOfImage = size; | |
| 260 #endif | |
| 428 | 261 |
| 442 | 262 pfnCheckSumMappedFile = |
| 263 (pfnCheckSumMappedFile_t) GetProcAddress (hImagehelp, | |
| 264 "CheckSumMappedFile"); | |
| 428 | 265 if (pfnCheckSumMappedFile) |
| 266 { | |
| 442 | 267 #if 0 |
| 268 nt_header->FileHeader.TimeDateStamp = time (NULL); | |
| 269 #endif | |
| 428 | 270 pfnCheckSumMappedFile (out_file.file_base, |
| 271 out_file.size, | |
| 272 &headersum, | |
| 273 &checksum); | |
| 274 nt_header->OptionalHeader.CheckSum = checksum; | |
| 275 } | |
| 276 FreeLibrary (hImagehelp); | |
| 277 } | |
| 278 | |
| 279 close_file_data (&in_file); | |
| 280 close_file_data (&out_file); | |
| 281 | |
| 442 | 282 return 0; |
| 428 | 283 } |
| 284 | |
| 285 /* Routines to manipulate NT executable file sections. */ | |
| 286 | |
| 287 #ifndef DUMP_SEPARATE_SECTION | |
| 288 static void | |
| 289 get_bss_info_from_map_file (file_data *p_infile, PUCHAR *p_bss_start, | |
| 290 DWORD *p_bss_size) | |
| 291 { | |
| 292 int n, start, len; | |
| 867 | 293 Ibyte *map_filename = alloca_ibytes (qxestrlen (p_infile->name) + 10); |
| 814 | 294 Extbyte buffer[256]; |
| 428 | 295 FILE *map; |
| 296 | |
| 297 /* Overwrite the .exe extension on the executable file name with | |
| 298 the .map extension. */ | |
| 814 | 299 qxestrcpy (map_filename, p_infile->name); |
| 300 n = qxestrlen (map_filename) - 3; | |
| 301 qxestrcpy (&map_filename[n], "map"); | |
| 428 | 302 |
| 814 | 303 map = qxe_fopen (map_filename, "r"); |
| 428 | 304 if (!map) |
| 305 { | |
| 814 | 306 stdout_out ("Failed to open map file %s, error %d...bailing out.\n", |
| 307 map_filename, GetLastError ()); | |
| 428 | 308 exit (-1); |
| 309 } | |
| 310 | |
| 311 while (fgets (buffer, sizeof (buffer), map)) | |
| 312 { | |
| 313 if (!(strstr (buffer, ".bss") && strstr (buffer, "DATA"))) | |
| 314 continue; | |
| 315 n = sscanf (buffer, " %*d:%x %x", &start, &len); | |
| 316 if (n != 2) | |
| 317 { | |
| 814 | 318 /* printf with external data, stdout_out with internal */ |
| 428 | 319 printf ("Failed to scan the .bss section line:\n%s", buffer); |
| 320 exit (-1); | |
| 321 } | |
| 322 break; | |
| 323 } | |
| 324 *p_bss_start = (PUCHAR) start; | |
| 325 *p_bss_size = (DWORD) len; | |
| 326 } | |
| 327 #endif | |
| 328 | |
| 329 /* Flip through the executable and cache the info necessary for dumping. */ | |
| 330 static void | |
| 331 get_section_info (file_data *p_infile) | |
| 332 { | |
| 333 PIMAGE_DOS_HEADER dos_header; | |
| 334 PIMAGE_NT_HEADERS nt_header; | |
| 335 PIMAGE_SECTION_HEADER section, data_section; | |
| 2367 | 336 Rawbyte *ptr; |
| 428 | 337 int i; |
| 338 | |
| 339 dos_header = (PIMAGE_DOS_HEADER) p_infile->file_base; | |
| 340 if (dos_header->e_magic != IMAGE_DOS_SIGNATURE) | |
| 341 { | |
| 814 | 342 stdout_out ("Unknown EXE header in %s...bailing.\n", p_infile->name); |
| 428 | 343 exit (1); |
| 344 } | |
| 345 nt_header = (PIMAGE_NT_HEADERS) (((unsigned long) dos_header) + | |
| 346 dos_header->e_lfanew); | |
| 347 if (nt_header == NULL) | |
| 348 { | |
| 814 | 349 stdout_out ("Failed to find IMAGE_NT_HEADER in %s...bailing.\n", |
| 350 p_infile->name); | |
| 428 | 351 exit (1); |
| 352 } | |
| 353 | |
| 354 /* Check the NT header signature ... */ | |
| 355 if (nt_header->Signature != IMAGE_NT_SIGNATURE) | |
| 356 { | |
| 814 | 357 stdout_out ("Invalid IMAGE_NT_SIGNATURE 0x%x in %s...bailing.\n", |
| 358 nt_header->Signature, p_infile->name); | |
| 428 | 359 } |
| 360 | |
| 361 /* Flip through the sections for .data and .bss ... */ | |
| 362 section = (PIMAGE_SECTION_HEADER) IMAGE_FIRST_SECTION (nt_header); | |
| 363 for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++) | |
| 364 { | |
| 365 #ifndef DUMP_SEPARATE_SECTION | |
| 2367 | 366 if (!qxestrcmp_ascii (section->Name, ".bss")) |
| 428 | 367 { |
| 368 extern int my_ebss; /* From lastfile.c */ | |
| 369 | |
| 2367 | 370 ptr = (Rawbyte *) nt_header->OptionalHeader.ImageBase + |
| 428 | 371 section->VirtualAddress; |
| 372 bss_start = ptr; | |
| 2367 | 373 bss_size = (Rawbyte*) &my_ebss - (Rawbyte*) bss_start; |
| 428 | 374 } |
| 375 | |
| 2367 | 376 if (!qxestrcmp_ascii (section->Name, ".data")) |
| 428 | 377 #else |
| 2367 | 378 if (!qxestrcmp_ascii (section->Name, "xdata")) |
| 428 | 379 #endif |
| 380 { | |
| 2367 | 381 extern Rawbyte my_edata[]; /* From lastfile.c */ |
| 428 | 382 |
| 383 /* The .data section. */ | |
| 384 data_section = section; | |
| 2367 | 385 ptr = (Rawbyte *) nt_header->OptionalHeader.ImageBase + |
| 428 | 386 section->VirtualAddress; |
| 387 data_start_va = ptr; | |
| 388 data_start_file = section->PointerToRawData; | |
| 389 | |
| 390 #ifndef DUMP_SEPARATE_SECTION | |
| 391 /* Write only the part of the section that contains emacs data. */ | |
| 392 data_size = my_edata - data_start_va; | |
| 393 #else | |
| 394 /* Write back the full section. */ | |
| 395 data_size = section->SizeOfRawData; | |
| 396 | |
| 397 /* This code doesn't know how to grow the raw size of a section. */ | |
| 398 if (section->SizeOfRawData < section->Misc.VirtualSize) | |
| 399 { | |
| 814 | 400 stdout_out ("The emacs data section is smaller than expected" |
| 401 "...bailing.\n"); | |
| 428 | 402 exit (1); |
| 403 } | |
| 404 #endif | |
| 405 } | |
| 406 section++; | |
| 407 } | |
| 408 | |
| 409 #ifndef DUMP_SEPARATE_SECTION | |
| 410 if (bss_start == UNINIT_PTR) | |
| 411 { | |
| 412 /* Starting with MSVC 4.0, the .bss section has been eliminated | |
| 413 and appended virtually to the end of the .data section. Our | |
| 414 only hint about where the .bss section starts in the address | |
| 415 comes from the SizeOfRawData field in the .data section | |
| 416 header. Unfortunately, this field is only approximate, as it | |
| 417 is a rounded number and is typically rounded just beyond the | |
| 418 start of the .bss section. To find the start and size of the | |
| 419 .bss section exactly, we have to peek into the map file. */ | |
| 420 extern int my_ebss; | |
| 421 | |
| 422 get_bss_info_from_map_file (p_infile, &ptr, &bss_size); | |
| 423 bss_start = ptr + nt_header->OptionalHeader.ImageBase | |
| 424 + data_section->VirtualAddress; | |
| 2367 | 425 bss_size = (Rawbyte *) &my_ebss - (Rawbyte *) bss_start; |
| 428 | 426 } |
| 427 #else | |
| 428 bss_size = 0; | |
| 429 #endif | |
| 430 } | |
| 431 | |
| 432 | |
| 433 /* The dump routines. */ | |
| 434 | |
| 435 #ifdef DEBUG_XEMACS | |
| 814 | 436 /* printf with external data, stdout_out with internal */ |
| 428 | 437 #define DUMP_MSG(x) printf x |
| 438 #else | |
| 439 #define DUMP_MSG(x) | |
| 440 #endif | |
| 441 | |
| 442 static void | |
| 443 copy_executable_and_dump_data_section (file_data *p_infile, | |
| 444 file_data *p_outfile) | |
| 445 { | |
| 2367 | 446 Rawbyte *data_file, *data_va; |
| 428 | 447 unsigned long size, index; |
| 448 | |
| 449 /* Get a pointer to where the raw data should go in the executable file. */ | |
| 2367 | 450 data_file = (Rawbyte *) p_outfile->file_base + data_start_file; |
| 428 | 451 |
| 452 /* Get a pointer to the raw data in our address space. */ | |
| 453 data_va = data_start_va; | |
| 454 | |
| 455 size = (DWORD) data_file - (DWORD) p_outfile->file_base; | |
| 456 DUMP_MSG (("Copying executable up to data section...\n")); | |
| 457 DUMP_MSG (("\t0x%08x Offset in input file.\n", 0)); | |
| 458 DUMP_MSG (("\t0x%08x Offset in output file.\n", 0)); | |
| 459 DUMP_MSG (("\t0x%08x Size in bytes.\n", size)); | |
| 460 memcpy (p_outfile->file_base, p_infile->file_base, size); | |
| 461 | |
| 462 size = data_size; | |
| 463 DUMP_MSG (("Dumping data section...\n")); | |
| 464 DUMP_MSG (("\t0x%08x Address in process.\n", data_va)); | |
| 465 DUMP_MSG (("\t0x%08x Offset in output file.\n", | |
| 2367 | 466 (Rawbyte *) data_file - |
| 467 (Rawbyte *) p_outfile->file_base)); | |
| 428 | 468 DUMP_MSG (("\t0x%08x Size in bytes.\n", size)); |
| 469 memcpy (data_file, data_va, size); | |
| 470 | |
| 471 index = (DWORD) data_file + size - (DWORD) p_outfile->file_base; | |
| 472 size = p_infile->size - index; | |
| 473 DUMP_MSG (("Copying rest of executable...\n")); | |
| 474 DUMP_MSG (("\t0x%08x Offset in input file.\n", index)); | |
| 475 DUMP_MSG (("\t0x%08x Offset in output file.\n", index)); | |
| 476 DUMP_MSG (("\t0x%08x Size in bytes.\n", size)); | |
| 2367 | 477 memcpy ((Rawbyte *) p_outfile->file_base + index, |
| 478 (Rawbyte *) p_infile->file_base + index, size); | |
| 428 | 479 } |
| 480 | |
| 481 static void | |
| 2286 | 482 dump_bss_and_heap (file_data *UNUSED (p_infile), file_data *p_outfile) |
| 428 | 483 { |
| 2367 | 484 Rawbyte *heap_data; |
| 814 | 485 unsigned long size, index; |
| 428 | 486 |
| 814 | 487 DUMP_MSG (("Dumping heap onto end of executable...\n")); |
| 428 | 488 |
| 814 | 489 index = heap_index_in_executable; |
| 490 size = get_committed_heap_size (); | |
| 491 heap_data = get_heap_start (); | |
| 428 | 492 |
| 814 | 493 DUMP_MSG (("\t0x%08x Heap start in process.\n", heap_data)); |
| 494 DUMP_MSG (("\t0x%08x Heap offset in executable.\n", index)); | |
| 495 DUMP_MSG (("\t0x%08x Heap size in bytes.\n", size)); | |
| 428 | 496 |
| 814 | 497 memcpy ((PUCHAR) p_outfile->file_base + index, heap_data, size); |
| 428 | 498 |
| 499 #ifndef DUMP_SEPARATE_SECTION | |
| 814 | 500 DUMP_MSG (("Dumping bss onto end of executable...\n")); |
| 428 | 501 |
| 814 | 502 index += size; |
| 503 size = bss_size; | |
| 428 | 504 |
| 814 | 505 DUMP_MSG (("\t0x%08x BSS start in process.\n", bss_start)); |
| 506 DUMP_MSG (("\t0x%08x BSS offset in executable.\n", index)); | |
| 507 DUMP_MSG (("\t0x%08x BSS size in bytes.\n", size)); | |
| 2367 | 508 memcpy ((Rawbyte *) p_outfile->file_base + index, bss_start, size); |
| 428 | 509 #endif |
| 510 } | |
| 511 | |
| 512 #undef DUMP_MSG | |
| 513 | |
| 514 /* Reload and remap routines. */ | |
| 515 | |
| 516 | |
| 517 /* Load the dumped .bss section into the .bss area of our address space. */ | |
| 518 /* Already done if the .bss was part of a separate emacs data section */ | |
| 519 void | |
| 814 | 520 read_in_bss (Extbyte *filename) |
| 428 | 521 { |
| 522 #ifndef DUMP_SEPARATE_SECTION | |
| 523 HANDLE file; | |
| 524 unsigned long index, n_read; | |
| 525 | |
| 814 | 526 file = qxeCreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL, |
| 527 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
|
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diff
changeset
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528 assert (file != INVALID_HANDLE_VALUE); |
| 428 | 529 |
| 530 /* Seek to where the .bss section is tucked away after the heap... */ | |
| 531 index = heap_index_in_executable + get_committed_heap_size (); | |
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Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4854
diff
changeset
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532 if (SetFilePointer (file, index, NULL, FILE_BEGIN) == 0xFFFFFFFF) |
| 2500 | 533 ABORT (); |
| 428 | 534 |
| 535 /* Ok, read in the saved .bss section and initialize all | |
| 536 uninitialized variables. */ | |
| 537 if (!ReadFile (file, bss_start, bss_size, &n_read, NULL)) | |
| 2500 | 538 ABORT (); |
| 428 | 539 |
| 540 CloseHandle (file); | |
| 541 #endif | |
| 542 } | |
| 543 | |
| 544 /* Map the heap dumped into the executable file into our address space. */ | |
| 545 void | |
| 814 | 546 map_in_heap (Extbyte *filename) |
| 428 | 547 { |
| 548 HANDLE file; | |
| 549 HANDLE file_mapping; | |
| 550 void *file_base; | |
| 551 unsigned long size, upper_size, n_read; | |
| 552 | |
| 814 | 553 file = qxeCreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL, |
| 554 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4854
diff
changeset
|
555 assert (file != INVALID_HANDLE_VALUE); |
| 428 | 556 |
| 557 size = GetFileSize (file, &upper_size); | |
| 814 | 558 file_mapping = qxeCreateFileMapping (file, NULL, PAGE_WRITECOPY, |
| 559 0, size, NULL); | |
|
5050
6f2158fa75ed
Fix quick-build, use asserts() in place of ABORT()
Ben Wing <ben@xemacs.org>
parents:
4854
diff
changeset
|
560 assert (file_mapping); |
| 428 | 561 |
| 562 size = get_committed_heap_size (); | |
| 563 file_base = MapViewOfFileEx (file_mapping, FILE_MAP_COPY, 0, | |
| 564 heap_index_in_executable, size, | |
| 565 get_heap_start ()); | |
| 566 if (file_base != 0) | |
| 567 { | |
| 568 return; | |
| 569 } | |
| 570 | |
| 571 /* If we don't succeed with the mapping, then copy from the | |
| 572 data into the heap. */ | |
| 573 | |
| 574 CloseHandle (file_mapping); | |
| 575 | |
| 576 if (VirtualAlloc (get_heap_start (), get_committed_heap_size (), | |
| 577 MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE) == NULL) | |
| 2500 | 578 ABORT (); |
| 428 | 579 |
| 580 /* Seek to the location of the heap data in the executable. */ | |
| 581 if (SetFilePointer (file, heap_index_in_executable, | |
| 582 NULL, FILE_BEGIN) == 0xFFFFFFFF) | |
| 2500 | 583 ABORT (); |
| 428 | 584 |
| 585 /* Read in the data. */ | |
| 586 if (!ReadFile (file, get_heap_start (), | |
| 587 get_committed_heap_size (), &n_read, NULL)) | |
| 2500 | 588 ABORT (); |
| 428 | 589 |
| 590 CloseHandle (file); | |
| 591 } |