Commit | Line | Data |
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3b7ad313 | 1 | /* unexec for GNU Emacs on Windows NT. |
2147fb50 KH |
2 | Copyright (C) 1994 Free Software Foundation, Inc. |
3 | ||
3b7ad313 | 4 | This file is part of GNU Emacs. |
2147fb50 | 5 | |
3b7ad313 EN |
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 2, or (at your option) | |
9 | any later version. | |
2147fb50 | 10 | |
3b7ad313 EN |
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. | |
2147fb50 | 15 | |
3b7ad313 EN |
16 | You should have received a copy of the GNU General Public License |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. | |
2147fb50 KH |
20 | |
21 | Geoff Voelker (voelker@cs.washington.edu) 8-12-94 | |
22 | */ | |
23 | ||
24 | #include <stdlib.h> /* _fmode */ | |
25 | #include <stdio.h> | |
26 | #include <fcntl.h> | |
27 | #include <windows.h> | |
28 | ||
29 | extern BOOL ctrl_c_handler (unsigned long type); | |
30 | ||
489f9371 | 31 | #include "w32heap.h" |
2147fb50 KH |
32 | |
33 | /* A convenient type for keeping all the info about a mapped file together. */ | |
34 | typedef struct file_data { | |
35 | char *name; | |
36 | unsigned long size; | |
37 | HANDLE file; | |
38 | HANDLE file_mapping; | |
39 | unsigned char *file_base; | |
40 | } file_data; | |
41 | ||
e54c8cd1 GV |
42 | /* Force zero initialized variables to be placed in the .data segment; |
43 | MSVC 5.0 otherwise places them in .bss, which breaks the dumping code. */ | |
44 | #pragma data_seg(".data") | |
45 | ||
2147fb50 KH |
46 | /* Basically, our "initialized" flag. */ |
47 | BOOL need_to_recreate_heap = FALSE; | |
48 | ||
49 | /* So we can find our heap in the file to recreate it. */ | |
50 | unsigned long heap_index_in_executable = 0; | |
51 | ||
52 | void open_input_file (file_data *p_file, char *name); | |
53 | void open_output_file (file_data *p_file, char *name, unsigned long size); | |
54 | void close_file_data (file_data *p_file); | |
55 | ||
56 | void get_section_info (file_data *p_file); | |
57 | void copy_executable_and_dump_data_section (file_data *, file_data *); | |
58 | void dump_bss_and_heap (file_data *p_infile, file_data *p_outfile); | |
59 | ||
60 | /* Cached info about the .data section in the executable. */ | |
61 | PUCHAR data_start_va = 0; | |
62 | DWORD data_start_file = 0; | |
63 | DWORD data_size = 0; | |
64 | ||
65 | /* Cached info about the .bss section in the executable. */ | |
66 | PUCHAR bss_start = 0; | |
67 | DWORD bss_size = 0; | |
68 | ||
cd6885f3 GV |
69 | #ifdef HAVE_NTGUI |
70 | HINSTANCE hinst = NULL; | |
71 | HINSTANCE hprevinst = NULL; | |
72 | LPSTR lpCmdLine = ""; | |
73 | int nCmdShow = 0; | |
cd6885f3 GV |
74 | #endif /* HAVE_NTGUI */ |
75 | ||
2147fb50 KH |
76 | /* Startup code for running on NT. When we are running as the dumped |
77 | version, we need to bootstrap our heap and .bss section into our | |
78 | address space before we can actually hand off control to the startup | |
79 | code supplied by NT (primarily because that code relies upon malloc ()). */ | |
80 | void | |
81 | _start (void) | |
82 | { | |
83 | extern void mainCRTStartup (void); | |
84 | ||
85 | /* Cache system info, e.g., the NT page size. */ | |
86 | cache_system_info (); | |
87 | ||
88 | /* If we're a dumped version of emacs then we need to recreate | |
89 | our heap and play tricks with our .bss section. Do this before | |
90 | start up. (WARNING: Do not put any code before this section | |
91 | that relies upon malloc () and runs in the dumped version. It | |
92 | won't work.) */ | |
93 | if (need_to_recreate_heap) | |
94 | { | |
95 | char executable_path[MAX_PATH]; | |
96 | ||
97 | if (GetModuleFileName (NULL, executable_path, MAX_PATH) == 0) | |
98 | { | |
99 | printf ("Failed to find path for executable.\n"); | |
100 | exit (1); | |
101 | } | |
102 | recreate_heap (executable_path); | |
103 | need_to_recreate_heap = FALSE; | |
104 | } | |
105 | ||
106 | /* The default behavior is to treat files as binary and patch up | |
107 | text files appropriately, in accordance with the MSDOS code. */ | |
108 | _fmode = O_BINARY; | |
109 | ||
110 | /* This prevents ctrl-c's in shells running while we're suspended from | |
111 | having us exit. */ | |
112 | SetConsoleCtrlHandler ((PHANDLER_ROUTINE) ctrl_c_handler, TRUE); | |
113 | ||
114 | /* Invoke the NT CRT startup routine now that our housecleaning | |
115 | is finished. */ | |
cd6885f3 | 116 | #ifdef HAVE_NTGUI |
c2ccbd43 GV |
117 | /* determine WinMain args like crt0.c does */ |
118 | hinst = GetModuleHandle(NULL); | |
119 | lpCmdLine = GetCommandLine(); | |
120 | nCmdShow = SW_SHOWDEFAULT; | |
121 | #endif | |
2147fb50 KH |
122 | mainCRTStartup (); |
123 | } | |
124 | ||
8e6208c5 | 125 | /* Dump out .data and .bss sections into a new executable. */ |
2147fb50 KH |
126 | void |
127 | unexec (char *new_name, char *old_name, void *start_data, void *start_bss, | |
128 | void *entry_address) | |
129 | { | |
130 | file_data in_file, out_file; | |
131 | char out_filename[MAX_PATH], in_filename[MAX_PATH]; | |
132 | unsigned long size; | |
133 | char *ptr; | |
134 | ||
135 | /* Make sure that the input and output filenames have the | |
136 | ".exe" extension...patch them up if they don't. */ | |
137 | strcpy (in_filename, old_name); | |
138 | ptr = in_filename + strlen (in_filename) - 4; | |
139 | if (strcmp (ptr, ".exe")) | |
140 | strcat (in_filename, ".exe"); | |
141 | ||
142 | strcpy (out_filename, new_name); | |
143 | ptr = out_filename + strlen (out_filename) - 4; | |
144 | if (strcmp (ptr, ".exe")) | |
145 | strcat (out_filename, ".exe"); | |
146 | ||
147 | printf ("Dumping from %s\n", in_filename); | |
148 | printf (" to %s\n", out_filename); | |
149 | ||
150 | /* We need to round off our heap to NT's allocation unit (64KB). */ | |
151 | round_heap (get_allocation_unit ()); | |
152 | ||
153 | /* Open the undumped executable file. */ | |
154 | open_input_file (&in_file, in_filename); | |
155 | ||
156 | /* Get the interesting section info, like start and size of .bss... */ | |
157 | get_section_info (&in_file); | |
158 | ||
159 | /* The size of the dumped executable is the size of the original | |
160 | executable plus the size of the heap and the size of the .bss section. */ | |
198fdd15 GV |
161 | heap_index_in_executable = (unsigned long) |
162 | round_to_next ((unsigned char *) in_file.size, get_allocation_unit ()); | |
2147fb50 KH |
163 | size = heap_index_in_executable + get_committed_heap_size () + bss_size; |
164 | open_output_file (&out_file, out_filename, size); | |
165 | ||
166 | /* Set the flag (before dumping). */ | |
167 | need_to_recreate_heap = TRUE; | |
168 | ||
169 | copy_executable_and_dump_data_section (&in_file, &out_file); | |
170 | dump_bss_and_heap (&in_file, &out_file); | |
171 | ||
172 | close_file_data (&in_file); | |
173 | close_file_data (&out_file); | |
174 | } | |
175 | ||
176 | ||
177 | /* File handling. */ | |
178 | ||
179 | ||
180 | void | |
181 | open_input_file (file_data *p_file, char *filename) | |
182 | { | |
183 | HANDLE file; | |
184 | HANDLE file_mapping; | |
185 | void *file_base; | |
186 | unsigned long size, upper_size; | |
187 | ||
188 | file = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL, | |
189 | OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
190 | if (file == INVALID_HANDLE_VALUE) | |
191 | { | |
192 | printf ("Failed to open %s (%d)...bailing.\n", | |
193 | filename, GetLastError ()); | |
194 | exit (1); | |
195 | } | |
196 | ||
197 | size = GetFileSize (file, &upper_size); | |
198 | file_mapping = CreateFileMapping (file, NULL, PAGE_READONLY, | |
199 | 0, size, NULL); | |
200 | if (!file_mapping) | |
201 | { | |
202 | printf ("Failed to create file mapping of %s (%d)...bailing.\n", | |
203 | filename, GetLastError ()); | |
204 | exit (1); | |
205 | } | |
206 | ||
207 | file_base = MapViewOfFile (file_mapping, FILE_MAP_READ, 0, 0, size); | |
208 | if (file_base == 0) | |
209 | { | |
210 | printf ("Failed to map view of file of %s (%d)...bailing.\n", | |
211 | filename, GetLastError ()); | |
212 | exit (1); | |
213 | } | |
214 | ||
215 | p_file->name = filename; | |
216 | p_file->size = size; | |
217 | p_file->file = file; | |
218 | p_file->file_mapping = file_mapping; | |
219 | p_file->file_base = file_base; | |
220 | } | |
221 | ||
222 | void | |
223 | open_output_file (file_data *p_file, char *filename, unsigned long size) | |
224 | { | |
225 | HANDLE file; | |
226 | HANDLE file_mapping; | |
227 | void *file_base; | |
cd6885f3 GV |
228 | int i; |
229 | ||
2147fb50 KH |
230 | file = CreateFile (filename, GENERIC_READ | GENERIC_WRITE, 0, NULL, |
231 | CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0); | |
232 | if (file == INVALID_HANDLE_VALUE) | |
233 | { | |
cd6885f3 | 234 | i = GetLastError (); |
2147fb50 | 235 | printf ("open_output_file: Failed to open %s (%d).\n", |
cd6885f3 | 236 | filename, i); |
2147fb50 KH |
237 | exit (1); |
238 | } | |
239 | ||
240 | file_mapping = CreateFileMapping (file, NULL, PAGE_READWRITE, | |
241 | 0, size, NULL); | |
242 | if (!file_mapping) | |
243 | { | |
cd6885f3 | 244 | i = GetLastError (); |
2147fb50 | 245 | printf ("open_output_file: Failed to create file mapping of %s (%d).\n", |
cd6885f3 | 246 | filename, i); |
2147fb50 KH |
247 | exit (1); |
248 | } | |
249 | ||
250 | file_base = MapViewOfFile (file_mapping, FILE_MAP_WRITE, 0, 0, size); | |
251 | if (file_base == 0) | |
252 | { | |
cd6885f3 | 253 | i = GetLastError (); |
2147fb50 | 254 | printf ("open_output_file: Failed to map view of file of %s (%d).\n", |
cd6885f3 | 255 | filename, i); |
2147fb50 KH |
256 | exit (1); |
257 | } | |
258 | ||
259 | p_file->name = filename; | |
260 | p_file->size = size; | |
261 | p_file->file = file; | |
262 | p_file->file_mapping = file_mapping; | |
263 | p_file->file_base = file_base; | |
264 | } | |
265 | ||
266 | /* Close the system structures associated with the given file. */ | |
267 | static void | |
268 | close_file_data (file_data *p_file) | |
269 | { | |
270 | UnmapViewOfFile (p_file->file_base); | |
271 | CloseHandle (p_file->file_mapping); | |
272 | CloseHandle (p_file->file); | |
273 | } | |
274 | ||
275 | ||
276 | /* Routines to manipulate NT executable file sections. */ | |
277 | ||
a610993d GV |
278 | static void |
279 | get_bss_info_from_map_file (file_data *p_infile, PUCHAR *p_bss_start, | |
280 | DWORD *p_bss_size) | |
281 | { | |
282 | int n, start, len; | |
283 | char map_filename[MAX_PATH]; | |
284 | char buffer[256]; | |
285 | FILE *map; | |
286 | ||
287 | /* Overwrite the .exe extension on the executable file name with | |
288 | the .map extension. */ | |
289 | strcpy (map_filename, p_infile->name); | |
290 | n = strlen (map_filename) - 3; | |
291 | strcpy (&map_filename[n], "map"); | |
292 | ||
293 | map = fopen (map_filename, "r"); | |
294 | if (!map) | |
295 | { | |
296 | printf ("Failed to open map file %s, error %d...bailing out.\n", | |
297 | map_filename, GetLastError ()); | |
298 | exit (-1); | |
299 | } | |
300 | ||
301 | while (fgets (buffer, sizeof (buffer), map)) | |
302 | { | |
303 | if (!(strstr (buffer, ".bss") && strstr (buffer, "DATA"))) | |
304 | continue; | |
305 | n = sscanf (buffer, " %*d:%x %x", &start, &len); | |
306 | if (n != 2) | |
307 | { | |
308 | printf ("Failed to scan the .bss section line:\n%s", buffer); | |
309 | exit (-1); | |
310 | } | |
311 | break; | |
312 | } | |
313 | *p_bss_start = (PUCHAR) start; | |
314 | *p_bss_size = (DWORD) len; | |
315 | } | |
2147fb50 KH |
316 | |
317 | static unsigned long | |
318 | get_section_size (PIMAGE_SECTION_HEADER p_section) | |
319 | { | |
320 | /* The section size is in different locations in the different versions. */ | |
fbd6baed | 321 | switch (get_w32_minor_version ()) |
2147fb50 KH |
322 | { |
323 | case 10: | |
324 | return p_section->SizeOfRawData; | |
325 | default: | |
326 | return p_section->Misc.VirtualSize; | |
327 | } | |
328 | } | |
329 | ||
330 | /* Flip through the executable and cache the info necessary for dumping. */ | |
331 | static void | |
332 | get_section_info (file_data *p_infile) | |
333 | { | |
334 | PIMAGE_DOS_HEADER dos_header; | |
335 | PIMAGE_NT_HEADERS nt_header; | |
a610993d | 336 | PIMAGE_SECTION_HEADER section, data_section; |
2147fb50 KH |
337 | unsigned char *ptr; |
338 | int i; | |
339 | ||
340 | dos_header = (PIMAGE_DOS_HEADER) p_infile->file_base; | |
341 | if (dos_header->e_magic != IMAGE_DOS_SIGNATURE) | |
342 | { | |
343 | printf ("Unknown EXE header in %s...bailing.\n", p_infile->name); | |
344 | exit (1); | |
345 | } | |
346 | nt_header = (PIMAGE_NT_HEADERS) (((unsigned long) dos_header) + | |
347 | dos_header->e_lfanew); | |
348 | if (nt_header == NULL) | |
349 | { | |
350 | printf ("Failed to find IMAGE_NT_HEADER in %s...bailing.\n", | |
351 | p_infile->name); | |
352 | exit (1); | |
353 | } | |
354 | ||
355 | /* Check the NT header signature ... */ | |
356 | if (nt_header->Signature != IMAGE_NT_SIGNATURE) | |
357 | { | |
358 | printf ("Invalid IMAGE_NT_SIGNATURE 0x%x in %s...bailing.\n", | |
359 | nt_header->Signature, p_infile->name); | |
360 | } | |
361 | ||
362 | /* Flip through the sections for .data and .bss ... */ | |
363 | section = (PIMAGE_SECTION_HEADER) IMAGE_FIRST_SECTION (nt_header); | |
364 | for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++) | |
365 | { | |
366 | if (!strcmp (section->Name, ".bss")) | |
367 | { | |
368 | /* The .bss section. */ | |
369 | ptr = (char *) nt_header->OptionalHeader.ImageBase + | |
370 | section->VirtualAddress; | |
371 | bss_start = ptr; | |
372 | bss_size = get_section_size (section); | |
373 | } | |
374 | if (!strcmp (section->Name, ".data")) | |
375 | { | |
198fdd15 GV |
376 | /* From lastfile.c */ |
377 | extern char my_edata[]; | |
378 | ||
2147fb50 | 379 | /* The .data section. */ |
a610993d | 380 | data_section = section; |
c2ccbd43 | 381 | ptr = (char *) nt_header->OptionalHeader.ImageBase + |
2147fb50 KH |
382 | section->VirtualAddress; |
383 | data_start_va = ptr; | |
384 | data_start_file = section->PointerToRawData; | |
198fdd15 GV |
385 | |
386 | /* We want to only write Emacs data back to the executable, | |
387 | not any of the library data (if library data is included, | |
388 | then a dumped Emacs won't run on system versions other | |
389 | than the one Emacs was dumped on). */ | |
390 | data_size = my_edata - data_start_va; | |
2147fb50 KH |
391 | } |
392 | section++; | |
393 | } | |
a610993d GV |
394 | |
395 | if (!bss_start && !bss_size) | |
396 | { | |
397 | /* Starting with MSVC 4.0, the .bss section has been eliminated | |
398 | and appended virtually to the end of the .data section. Our | |
399 | only hint about where the .bss section starts in the address | |
400 | comes from the SizeOfRawData field in the .data section | |
401 | header. Unfortunately, this field is only approximate, as it | |
402 | is a rounded number and is typically rounded just beyond the | |
403 | start of the .bss section. To find the start and size of the | |
404 | .bss section exactly, we have to peek into the map file. */ | |
405 | get_bss_info_from_map_file (p_infile, &ptr, &bss_size); | |
406 | bss_start = ptr + nt_header->OptionalHeader.ImageBase | |
407 | + data_section->VirtualAddress; | |
408 | } | |
2147fb50 KH |
409 | } |
410 | ||
411 | ||
412 | /* The dump routines. */ | |
413 | ||
414 | static void | |
415 | copy_executable_and_dump_data_section (file_data *p_infile, | |
416 | file_data *p_outfile) | |
417 | { | |
418 | unsigned char *data_file, *data_va; | |
419 | unsigned long size, index; | |
420 | ||
421 | /* Get a pointer to where the raw data should go in the executable file. */ | |
422 | data_file = (char *) p_outfile->file_base + data_start_file; | |
423 | ||
424 | /* Get a pointer to the raw data in our address space. */ | |
425 | data_va = data_start_va; | |
426 | ||
427 | size = (DWORD) data_file - (DWORD) p_outfile->file_base; | |
428 | printf ("Copying executable up to data section...\n"); | |
429 | printf ("\t0x%08x Offset in input file.\n", 0); | |
430 | printf ("\t0x%08x Offset in output file.\n", 0); | |
431 | printf ("\t0x%08x Size in bytes.\n", size); | |
432 | memcpy (p_outfile->file_base, p_infile->file_base, size); | |
433 | ||
434 | size = data_size; | |
435 | printf ("Dumping .data section...\n"); | |
436 | printf ("\t0x%08x Address in process.\n", data_va); | |
437 | printf ("\t0x%08x Offset in output file.\n", | |
438 | data_file - p_outfile->file_base); | |
439 | printf ("\t0x%08x Size in bytes.\n", size); | |
440 | memcpy (data_file, data_va, size); | |
441 | ||
442 | index = (DWORD) data_file + size - (DWORD) p_outfile->file_base; | |
443 | size = p_infile->size - index; | |
444 | printf ("Copying rest of executable...\n"); | |
445 | printf ("\t0x%08x Offset in input file.\n", index); | |
446 | printf ("\t0x%08x Offset in output file.\n", index); | |
447 | printf ("\t0x%08x Size in bytes.\n", size); | |
448 | memcpy ((char *) p_outfile->file_base + index, | |
449 | (char *) p_infile->file_base + index, size); | |
450 | } | |
451 | ||
452 | static void | |
453 | dump_bss_and_heap (file_data *p_infile, file_data *p_outfile) | |
454 | { | |
455 | unsigned char *heap_data, *bss_data; | |
456 | unsigned long size, index; | |
457 | ||
458 | printf ("Dumping heap into executable...\n"); | |
459 | ||
460 | index = heap_index_in_executable; | |
461 | size = get_committed_heap_size (); | |
462 | heap_data = get_heap_start (); | |
463 | ||
464 | printf ("\t0x%08x Heap start in process.\n", heap_data); | |
465 | printf ("\t0x%08x Heap offset in executable.\n", index); | |
466 | printf ("\t0x%08x Heap size in bytes.\n", size); | |
467 | ||
468 | memcpy ((PUCHAR) p_outfile->file_base + index, heap_data, size); | |
469 | ||
470 | printf ("Dumping .bss into executable...\n"); | |
471 | ||
472 | index += size; | |
473 | size = bss_size; | |
474 | bss_data = bss_start; | |
475 | ||
476 | printf ("\t0x%08x BSS start in process.\n", bss_data); | |
477 | printf ("\t0x%08x BSS offset in executable.\n", index); | |
478 | printf ("\t0x%08x BSS size in bytes.\n", size); | |
479 | memcpy ((char *) p_outfile->file_base + index, bss_data, size); | |
480 | } | |
481 | ||
482 | ||
483 | /* Reload and remap routines. */ | |
484 | ||
485 | ||
486 | /* Load the dumped .bss section into the .bss area of our address space. */ | |
487 | void | |
488 | read_in_bss (char *filename) | |
489 | { | |
490 | HANDLE file; | |
491 | unsigned long size, index, n_read, total_read; | |
492 | char buffer[512], *bss; | |
493 | int i; | |
494 | ||
495 | file = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL, | |
496 | OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
497 | if (file == INVALID_HANDLE_VALUE) | |
498 | { | |
499 | i = GetLastError (); | |
500 | exit (1); | |
501 | } | |
502 | ||
503 | /* Seek to where the .bss section is tucked away after the heap... */ | |
504 | index = heap_index_in_executable + get_committed_heap_size (); | |
505 | if (SetFilePointer (file, index, NULL, FILE_BEGIN) == 0xFFFFFFFF) | |
506 | { | |
507 | i = GetLastError (); | |
508 | exit (1); | |
509 | } | |
510 | ||
511 | ||
512 | /* Ok, read in the saved .bss section and initialize all | |
513 | uninitialized variables. */ | |
198fdd15 | 514 | if (!ReadFile (file, bss_start, bss_size, &n_read, NULL)) |
2147fb50 | 515 | { |
198fdd15 GV |
516 | i = GetLastError (); |
517 | exit (1); | |
2147fb50 | 518 | } |
198fdd15 | 519 | |
2147fb50 KH |
520 | CloseHandle (file); |
521 | } | |
522 | ||
523 | /* Map the heap dumped into the executable file into our address space. */ | |
524 | void | |
525 | map_in_heap (char *filename) | |
526 | { | |
527 | HANDLE file; | |
528 | HANDLE file_mapping; | |
529 | void *file_base; | |
198fdd15 | 530 | unsigned long size, upper_size, n_read; |
2147fb50 KH |
531 | int i; |
532 | ||
533 | file = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL, | |
534 | OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); | |
535 | if (file == INVALID_HANDLE_VALUE) | |
536 | { | |
537 | i = GetLastError (); | |
538 | exit (1); | |
539 | } | |
540 | ||
541 | size = GetFileSize (file, &upper_size); | |
542 | file_mapping = CreateFileMapping (file, NULL, PAGE_WRITECOPY, | |
543 | 0, size, NULL); | |
544 | if (!file_mapping) | |
545 | { | |
198fdd15 GV |
546 | i = GetLastError (); |
547 | exit (1); | |
2147fb50 KH |
548 | } |
549 | ||
550 | size = get_committed_heap_size (); | |
551 | file_base = MapViewOfFileEx (file_mapping, FILE_MAP_COPY, 0, | |
552 | heap_index_in_executable, size, | |
553 | get_heap_start ()); | |
198fdd15 GV |
554 | if (file_base != 0) |
555 | { | |
556 | return; | |
557 | } | |
558 | ||
559 | /* If we don't succeed with the mapping, then copy from the | |
560 | data into the heap. */ | |
561 | ||
562 | CloseHandle (file_mapping); | |
563 | ||
564 | if (VirtualAlloc (get_heap_start (), get_committed_heap_size (), | |
565 | MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE) == NULL) | |
566 | { | |
567 | i = GetLastError (); | |
568 | exit (1); | |
569 | } | |
570 | ||
571 | /* Seek to the location of the heap data in the executable. */ | |
572 | i = heap_index_in_executable; | |
573 | if (SetFilePointer (file, i, NULL, FILE_BEGIN) == 0xFFFFFFFF) | |
2147fb50 KH |
574 | { |
575 | i = GetLastError (); | |
576 | exit (1); | |
577 | } | |
198fdd15 GV |
578 | |
579 | /* Read in the data. */ | |
580 | if (!ReadFile (file, get_heap_start (), | |
581 | get_committed_heap_size (), &n_read, NULL)) | |
582 | { | |
583 | i = GetLastError (); | |
584 | exit (1); | |
585 | } | |
586 | ||
587 | CloseHandle (file); | |
2147fb50 | 588 | } |