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make: create native tcc from separate objects
[tinycc.git] / tccpe.c
blob22b61a696790cd2f313deea15318228064122b39
1 /*
2 * TCCPE.C - PE file output for the Tiny C Compiler
3 *
4 * Copyright (c) 2005-2007 grischka
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library 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 GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #include "tcc.h"
22
23 #ifndef _WIN32
24 #define stricmp strcasecmp
25 #define strnicmp strncasecmp
26 #endif
27
28 #ifndef MAX_PATH
29 #define MAX_PATH 260
30 #endif
31
32 #define PE_MERGE_DATA
33 // #define PE_PRINT_SECTIONS
34
35 #ifdef TCC_TARGET_X86_64
36 # define ADDR3264 ULONGLONG
37 #else
38 # define ADDR3264 DWORD
39 #endif
40
41 #if defined _WIN32 && (defined _WIN64) == (defined TCC_TARGET_X86_64)
42 #define TCC_IS_NATIVE
43 #endif
44
45 #ifdef _WIN32
46 void dbg_printf (const char *fmt, ...)
47 {
48 char buffer[4000];
49 va_list arg;
50 int x;
51 va_start(arg, fmt);
52 x = vsprintf (buffer, fmt, arg);
53 strcpy(buffer+x, "\n");
54 OutputDebugString(buffer);
55 }
56 #endif
57
58 /* ----------------------------------------------------------- */
59 #ifndef IMAGE_NT_SIGNATURE
60 /* ----------------------------------------------------------- */
61 /* definitions below are from winnt.h */
62
63 typedef unsigned char BYTE;
64 typedef unsigned short WORD;
65 typedef unsigned int DWORD;
66 typedef unsigned long long ULONGLONG;
67 #pragma pack(push, 1)
68
69 typedef struct _IMAGE_DOS_HEADER { /* DOS .EXE header */
70 WORD e_magic; /* Magic number */
71 WORD e_cblp; /* Bytes on last page of file */
72 WORD e_cp; /* Pages in file */
73 WORD e_crlc; /* Relocations */
74 WORD e_cparhdr; /* Size of header in paragraphs */
75 WORD e_minalloc; /* Minimum extra paragraphs needed */
76 WORD e_maxalloc; /* Maximum extra paragraphs needed */
77 WORD e_ss; /* Initial (relative) SS value */
78 WORD e_sp; /* Initial SP value */
79 WORD e_csum; /* Checksum */
80 WORD e_ip; /* Initial IP value */
81 WORD e_cs; /* Initial (relative) CS value */
82 WORD e_lfarlc; /* File address of relocation table */
83 WORD e_ovno; /* Overlay number */
84 WORD e_res[4]; /* Reserved words */
85 WORD e_oemid; /* OEM identifier (for e_oeminfo) */
86 WORD e_oeminfo; /* OEM information; e_oemid specific */
87 WORD e_res2[10]; /* Reserved words */
88 DWORD e_lfanew; /* File address of new exe header */
89 } IMAGE_DOS_HEADER, *PIMAGE_DOS_HEADER;
90
91 #define IMAGE_NT_SIGNATURE 0x00004550 /* PE00 */
92 #define SIZE_OF_NT_SIGNATURE 4
93
94 typedef struct _IMAGE_FILE_HEADER {
95 WORD Machine;
96 WORD NumberOfSections;
97 DWORD TimeDateStamp;
98 DWORD PointerToSymbolTable;
99 DWORD NumberOfSymbols;
100 WORD SizeOfOptionalHeader;
101 WORD Characteristics;
102 } IMAGE_FILE_HEADER, *PIMAGE_FILE_HEADER;
103
104
105 #define IMAGE_SIZEOF_FILE_HEADER 20
106
107 typedef struct _IMAGE_DATA_DIRECTORY {
108 DWORD VirtualAddress;
109 DWORD Size;
110 } IMAGE_DATA_DIRECTORY, *PIMAGE_DATA_DIRECTORY;
111
112
113 typedef struct _IMAGE_OPTIONAL_HEADER {
114 /* Standard fields. */
115 WORD Magic;
116 BYTE MajorLinkerVersion;
117 BYTE MinorLinkerVersion;
118 DWORD SizeOfCode;
119 DWORD SizeOfInitializedData;
120 DWORD SizeOfUninitializedData;
121 DWORD AddressOfEntryPoint;
122 DWORD BaseOfCode;
123 #ifndef TCC_TARGET_X86_64
124 DWORD BaseOfData;
125 #endif
126 /* NT additional fields. */
127 ADDR3264 ImageBase;
128 DWORD SectionAlignment;
129 DWORD FileAlignment;
130 WORD MajorOperatingSystemVersion;
131 WORD MinorOperatingSystemVersion;
132 WORD MajorImageVersion;
133 WORD MinorImageVersion;
134 WORD MajorSubsystemVersion;
135 WORD MinorSubsystemVersion;
136 DWORD Win32VersionValue;
137 DWORD SizeOfImage;
138 DWORD SizeOfHeaders;
139 DWORD CheckSum;
140 WORD Subsystem;
141 WORD DllCharacteristics;
142 ADDR3264 SizeOfStackReserve;
143 ADDR3264 SizeOfStackCommit;
144 ADDR3264 SizeOfHeapReserve;
145 ADDR3264 SizeOfHeapCommit;
146 DWORD LoaderFlags;
147 DWORD NumberOfRvaAndSizes;
148 IMAGE_DATA_DIRECTORY DataDirectory[16];
149 } IMAGE_OPTIONAL_HEADER32, IMAGE_OPTIONAL_HEADER64, IMAGE_OPTIONAL_HEADER;
150
151 #define IMAGE_DIRECTORY_ENTRY_EXPORT 0 /* Export Directory */
152 #define IMAGE_DIRECTORY_ENTRY_IMPORT 1 /* Import Directory */
153 #define IMAGE_DIRECTORY_ENTRY_RESOURCE 2 /* Resource Directory */
154 #define IMAGE_DIRECTORY_ENTRY_EXCEPTION 3 /* Exception Directory */
155 #define IMAGE_DIRECTORY_ENTRY_SECURITY 4 /* Security Directory */
156 #define IMAGE_DIRECTORY_ENTRY_BASERELOC 5 /* Base Relocation Table */
157 #define IMAGE_DIRECTORY_ENTRY_DEBUG 6 /* Debug Directory */
158 /* IMAGE_DIRECTORY_ENTRY_COPYRIGHT 7 (X86 usage) */
159 #define IMAGE_DIRECTORY_ENTRY_ARCHITECTURE 7 /* Architecture Specific Data */
160 #define IMAGE_DIRECTORY_ENTRY_GLOBALPTR 8 /* RVA of GP */
161 #define IMAGE_DIRECTORY_ENTRY_TLS 9 /* TLS Directory */
162 #define IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG 10 /* Load Configuration Directory */
163 #define IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT 11 /* Bound Import Directory in headers */
164 #define IMAGE_DIRECTORY_ENTRY_IAT 12 /* Import Address Table */
165 #define IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT 13 /* Delay Load Import Descriptors */
166 #define IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR 14 /* COM Runtime descriptor */
167
168 /* Section header format. */
169 #define IMAGE_SIZEOF_SHORT_NAME 8
170
171 typedef struct _IMAGE_SECTION_HEADER {
172 BYTE Name[IMAGE_SIZEOF_SHORT_NAME];
173 union {
174 DWORD PhysicalAddress;
175 DWORD VirtualSize;
176 } Misc;
177 DWORD VirtualAddress;
178 DWORD SizeOfRawData;
179 DWORD PointerToRawData;
180 DWORD PointerToRelocations;
181 DWORD PointerToLinenumbers;
182 WORD NumberOfRelocations;
183 WORD NumberOfLinenumbers;
184 DWORD Characteristics;
185 } IMAGE_SECTION_HEADER, *PIMAGE_SECTION_HEADER;
186
187 #define IMAGE_SIZEOF_SECTION_HEADER 40
188
189 typedef struct _IMAGE_EXPORT_DIRECTORY {
190 DWORD Characteristics;
191 DWORD TimeDateStamp;
192 WORD MajorVersion;
193 WORD MinorVersion;
194 DWORD Name;
195 DWORD Base;
196 DWORD NumberOfFunctions;
197 DWORD NumberOfNames;
198 DWORD AddressOfFunctions;
199 DWORD AddressOfNames;
200 DWORD AddressOfNameOrdinals;
201 } IMAGE_EXPORT_DIRECTORY,*PIMAGE_EXPORT_DIRECTORY;
202
203 typedef struct _IMAGE_IMPORT_DESCRIPTOR {
204 union {
205 DWORD Characteristics;
206 DWORD OriginalFirstThunk;
207 };
208 DWORD TimeDateStamp;
209 DWORD ForwarderChain;
210 DWORD Name;
211 DWORD FirstThunk;
212 } IMAGE_IMPORT_DESCRIPTOR;
213
214 typedef struct _IMAGE_BASE_RELOCATION {
215 DWORD VirtualAddress;
216 DWORD SizeOfBlock;
217 // WORD TypeOffset[1];
218 } IMAGE_BASE_RELOCATION;
219
220 #define IMAGE_SIZEOF_BASE_RELOCATION 8
221
222 #define IMAGE_REL_BASED_ABSOLUTE 0
223 #define IMAGE_REL_BASED_HIGH 1
224 #define IMAGE_REL_BASED_LOW 2
225 #define IMAGE_REL_BASED_HIGHLOW 3
226 #define IMAGE_REL_BASED_HIGHADJ 4
227 #define IMAGE_REL_BASED_MIPS_JMPADDR 5
228 #define IMAGE_REL_BASED_SECTION 6
229 #define IMAGE_REL_BASED_REL32 7
230
231 #pragma pack(pop)
232
233 /* ----------------------------------------------------------- */
234 #endif /* ndef IMAGE_NT_SIGNATURE */
235 /* ----------------------------------------------------------- */
236 #pragma pack(push, 1)
237
238 struct pe_header
239 {
240 IMAGE_DOS_HEADER doshdr;
241 BYTE dosstub[0x40];
242 DWORD nt_sig;
243 IMAGE_FILE_HEADER filehdr;
244 #ifdef TCC_TARGET_X86_64
245 IMAGE_OPTIONAL_HEADER64 opthdr;
246 #else
247 #ifdef _WIN64
248 IMAGE_OPTIONAL_HEADER32 opthdr;
249 #else
250 IMAGE_OPTIONAL_HEADER opthdr;
251 #endif
252 #endif
253 };
254
255 struct pe_reloc_header {
256 DWORD offset;
257 DWORD size;
258 };
259
260 struct pe_rsrc_header {
261 struct _IMAGE_FILE_HEADER filehdr;
262 struct _IMAGE_SECTION_HEADER sectionhdr;
263 };
264
265 struct pe_rsrc_reloc {
266 DWORD offset;
267 DWORD size;
268 WORD type;
269 };
270
271 #pragma pack(pop)
272
273 /* ------------------------------------------------------------- */
274 /* internal temporary structures */
275
276 /*
277 #define IMAGE_SCN_CNT_CODE 0x00000020
278 #define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040
279 #define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080
280 #define IMAGE_SCN_MEM_DISCARDABLE 0x02000000
281 #define IMAGE_SCN_MEM_SHARED 0x10000000
282 #define IMAGE_SCN_MEM_EXECUTE 0x20000000
283 #define IMAGE_SCN_MEM_READ 0x40000000
284 #define IMAGE_SCN_MEM_WRITE 0x80000000
285 */
286
287 enum {
288 sec_text = 0,
289 sec_data ,
290 sec_bss ,
291 sec_idata ,
292 sec_pdata ,
293 sec_other ,
294 sec_rsrc ,
295 sec_stab ,
296 sec_reloc ,
297 sec_last
298 };
299
300 static const DWORD pe_sec_flags[] = {
301 0x60000020, /* ".text" , */
302 0xC0000040, /* ".data" , */
303 0xC0000080, /* ".bss" , */
304 0x40000040, /* ".idata" , */
305 0x40000040, /* ".pdata" , */
306 0xE0000060, /* < other > , */
307 0x40000040, /* ".rsrc" , */
308 0x42000802, /* ".stab" , */
309 0x42000040, /* ".reloc" , */
310 };
311
312 struct section_info {
313 int cls, ord;
314 char name[32];
315 DWORD sh_addr;
316 DWORD sh_size;
317 DWORD sh_flags;
318 unsigned char *data;
319 DWORD data_size;
320 IMAGE_SECTION_HEADER ish;
321 };
322
323 struct import_symbol {
324 int sym_index;
325 int iat_index;
326 int thk_offset;
327 };
328
329 struct pe_import_info {
330 int dll_index;
331 int sym_count;
332 struct import_symbol **symbols;
333 };
334
335 struct pe_info {
336 TCCState *s1;
337 Section *reloc;
338 Section *thunk;
339 const char *filename;
340 int type;
341 DWORD sizeofheaders;
342 DWORD imagebase;
343 DWORD start_addr;
344 DWORD imp_offs;
345 DWORD imp_size;
346 DWORD iat_offs;
347 DWORD iat_size;
348 DWORD exp_offs;
349 DWORD exp_size;
350 int subsystem;
351 DWORD section_align;
352 DWORD file_align;
353 struct section_info *sec_info;
354 int sec_count;
355 struct pe_import_info **imp_info;
356 int imp_count;
357 };
358
359 #define PE_NUL 0
360 #define PE_DLL 1
361 #define PE_GUI 2
362 #define PE_EXE 3
363 #define PE_RUN 4
364
365 /* --------------------------------------------*/
366
367 static const char *pe_export_name(TCCState *s1, ElfW(Sym) *sym)
368 {
369 const char *name = symtab_section->link->data + sym->st_name;
370 if (s1->leading_underscore && name[0] == '_' && !(sym->st_other & 2))
371 return name + 1;
372 return name;
373 }
374
375 static int pe_find_import(TCCState * s1, ElfW(Sym) *sym)
376 {
377 char buffer[200];
378 const char *s, *p;
379 int sym_index = 0, n = 0;
380
381 do {
382 s = pe_export_name(s1, sym);
383 if (n) {
384 /* second try: */
385 if (sym->st_other & 2) {
386 /* try w/0 stdcall deco (windows API convention) */
387 p = strrchr(s, '@');
388 if (!p || s[0] != '_')
389 break;
390 strcpy(buffer, s+1)[p-s-1] = 0;
391 } else if (s[0] != '_') { /* try non-ansi function */
392 buffer[0] = '_', strcpy(buffer + 1, s);
393 } else if (0 == memcmp(s, "__imp__", 7)) { /* mingw 2.0 */
394 strcpy(buffer, s + 6);
395 } else if (0 == memcmp(s, "_imp___", 7)) { /* mingw 3.7 */
396 strcpy(buffer, s + 6);
397 } else {
398 break;
399 }
400 s = buffer;
401 }
402 sym_index = find_elf_sym(s1->dynsymtab_section, s);
403 // printf("find (%d) %d %s\n", n, sym_index, s);
404 } while (0 == sym_index && ++n < 2);
405 return sym_index;
406 }
407
408 /*----------------------------------------------------------------------------*/
409
410 static int dynarray_assoc(void **pp, int n, int key)
411 {
412 int i;
413 for (i = 0; i < n; ++i, ++pp)
414 if (key == **(int **) pp)
415 return i;
416 return -1;
417 }
418
419 #if 0
420 ST_FN DWORD umin(DWORD a, DWORD b)
421 {
422 return a < b ? a : b;
423 }
424 #endif
425
426 static DWORD umax(DWORD a, DWORD b)
427 {
428 return a < b ? b : a;
429 }
430
431 static DWORD pe_file_align(struct pe_info *pe, DWORD n)
432 {
433 return (n + (pe->file_align - 1)) & ~(pe->file_align - 1);
434 }
435
436 static DWORD pe_virtual_align(struct pe_info *pe, DWORD n)
437 {
438 return (n + (pe->section_align - 1)) & ~(pe->section_align - 1);
439 }
440
441 static void pe_align_section(Section *s, int a)
442 {
443 int i = s->data_offset & (a-1);
444 if (i)
445 section_ptr_add(s, a - i);
446 }
447
448 static void pe_set_datadir(struct pe_header *hdr, int dir, DWORD addr, DWORD size)
449 {
450 hdr->opthdr.DataDirectory[dir].VirtualAddress = addr;
451 hdr->opthdr.DataDirectory[dir].Size = size;
452 }
453
454 static int pe_fwrite(void *data, unsigned len, FILE *fp, DWORD *psum)
455 {
456 if (psum) {
457 DWORD sum = *psum;
458 WORD *p = data;
459 int i;
460 for (i = len; i > 0; i -= 2) {
461 sum += (i >= 2) ? *p++ : *(BYTE*)p;
462 sum = (sum + (sum >> 16)) & 0xFFFF;
463 }
464 *psum = sum;
465 }
466 return len == fwrite(data, 1, len, fp) ? 0 : -1;
467 }
468
469 static void pe_fpad(FILE *fp, DWORD new_pos)
470 {
471 DWORD pos = ftell(fp);
472 while (++pos <= new_pos)
473 fputc(0, fp);
474 }
475
476 /*----------------------------------------------------------------------------*/
477 static int pe_write(struct pe_info *pe)
478 {
479 static const struct pe_header pe_template = {
480 {
481 /* IMAGE_DOS_HEADER doshdr */
482 0x5A4D, /*WORD e_magic; Magic number */
483 0x0090, /*WORD e_cblp; Bytes on last page of file */
484 0x0003, /*WORD e_cp; Pages in file */
485 0x0000, /*WORD e_crlc; Relocations */
486
487 0x0004, /*WORD e_cparhdr; Size of header in paragraphs */
488 0x0000, /*WORD e_minalloc; Minimum extra paragraphs needed */
489 0xFFFF, /*WORD e_maxalloc; Maximum extra paragraphs needed */
490 0x0000, /*WORD e_ss; Initial (relative) SS value */
491
492 0x00B8, /*WORD e_sp; Initial SP value */
493 0x0000, /*WORD e_csum; Checksum */
494 0x0000, /*WORD e_ip; Initial IP value */
495 0x0000, /*WORD e_cs; Initial (relative) CS value */
496 0x0040, /*WORD e_lfarlc; File address of relocation table */
497 0x0000, /*WORD e_ovno; Overlay number */
498 {0,0,0,0}, /*WORD e_res[4]; Reserved words */
499 0x0000, /*WORD e_oemid; OEM identifier (for e_oeminfo) */
500 0x0000, /*WORD e_oeminfo; OEM information; e_oemid specific */
501 {0,0,0,0,0,0,0,0,0,0}, /*WORD e_res2[10]; Reserved words */
502 0x00000080 /*DWORD e_lfanew; File address of new exe header */
503 },{
504 /* BYTE dosstub[0x40] */
505 /* 14 code bytes + "This program cannot be run in DOS mode.\r\r\n$" + 6 * 0x00 */
506 0x0e,0x1f,0xba,0x0e,0x00,0xb4,0x09,0xcd,0x21,0xb8,0x01,0x4c,0xcd,0x21,0x54,0x68,
507 0x69,0x73,0x20,0x70,0x72,0x6f,0x67,0x72,0x61,0x6d,0x20,0x63,0x61,0x6e,0x6e,0x6f,
508 0x74,0x20,0x62,0x65,0x20,0x72,0x75,0x6e,0x20,0x69,0x6e,0x20,0x44,0x4f,0x53,0x20,
509 0x6d,0x6f,0x64,0x65,0x2e,0x0d,0x0d,0x0a,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
510 },
511 0x00004550, /* DWORD nt_sig = IMAGE_NT_SIGNATURE */
512 {
513 /* IMAGE_FILE_HEADER filehdr */
514 #if defined(TCC_TARGET_I386)
515 0x014C, /*WORD Machine; */
516 #elif defined(TCC_TARGET_X86_64)
517 0x8664, /*WORD Machine; */
518 #elif defined(TCC_TARGET_ARM)
519 0x01C0, /*WORD Machine; */
520 #endif
521 0x0003, /*WORD NumberOfSections; */
522 0x00000000, /*DWORD TimeDateStamp; */
523 0x00000000, /*DWORD PointerToSymbolTable; */
524 0x00000000, /*DWORD NumberOfSymbols; */
525 #if defined(TCC_TARGET_X86_64)
526 0x00F0, /*WORD SizeOfOptionalHeader; */
527 0x022F /*WORD Characteristics; */
528 #define CHARACTERISTICS_DLL 0x222E
529 #elif defined(TCC_TARGET_I386)
530 0x00E0, /*WORD SizeOfOptionalHeader; */
531 0x030F /*WORD Characteristics; */
532 #define CHARACTERISTICS_DLL 0x230E
533 #elif defined(TCC_TARGET_ARM)
534 0x00E0, /*WORD SizeOfOptionalHeader; */
535 0x010F, /*WORD Characteristics; */
536 #define CHARACTERISTICS_DLL 0x230F
537 #endif
538 },{
539 /* IMAGE_OPTIONAL_HEADER opthdr */
540 /* Standard fields. */
541 #ifdef TCC_TARGET_X86_64
542 0x020B, /*WORD Magic; */
543 #else
544 0x010B, /*WORD Magic; */
545 #endif
546 0x06, /*BYTE MajorLinkerVersion; */
547 0x00, /*BYTE MinorLinkerVersion; */
548 0x00000000, /*DWORD SizeOfCode; */
549 0x00000000, /*DWORD SizeOfInitializedData; */
550 0x00000000, /*DWORD SizeOfUninitializedData; */
551 0x00000000, /*DWORD AddressOfEntryPoint; */
552 0x00000000, /*DWORD BaseOfCode; */
553 #ifndef TCC_TARGET_X86_64
554 0x00000000, /*DWORD BaseOfData; */
555 #endif
556 /* NT additional fields. */
557 #if defined(TCC_TARGET_ARM)
558 0x00100000, /*DWORD ImageBase; */
559 #else
560 0x00400000, /*DWORD ImageBase; */
561 #endif
562 0x00001000, /*DWORD SectionAlignment; */
563 0x00000200, /*DWORD FileAlignment; */
564 0x0004, /*WORD MajorOperatingSystemVersion; */
565 0x0000, /*WORD MinorOperatingSystemVersion; */
566 0x0000, /*WORD MajorImageVersion; */
567 0x0000, /*WORD MinorImageVersion; */
568 0x0004, /*WORD MajorSubsystemVersion; */
569 0x0000, /*WORD MinorSubsystemVersion; */
570 0x00000000, /*DWORD Win32VersionValue; */
571 0x00000000, /*DWORD SizeOfImage; */
572 0x00000200, /*DWORD SizeOfHeaders; */
573 0x00000000, /*DWORD CheckSum; */
574 0x0002, /*WORD Subsystem; */
575 0x0000, /*WORD DllCharacteristics; */
576 0x00100000, /*DWORD SizeOfStackReserve; */
577 0x00001000, /*DWORD SizeOfStackCommit; */
578 0x00100000, /*DWORD SizeOfHeapReserve; */
579 0x00001000, /*DWORD SizeOfHeapCommit; */
580 0x00000000, /*DWORD LoaderFlags; */
581 0x00000010, /*DWORD NumberOfRvaAndSizes; */
582
583 /* IMAGE_DATA_DIRECTORY DataDirectory[16]; */
584 {{0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0},
585 {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}}
586 }};
587
588 struct pe_header pe_header = pe_template;
589
590 int i;
591 FILE *op;
592 DWORD file_offset, sum;
593 struct section_info *si;
594 IMAGE_SECTION_HEADER *psh;
595
596 op = fopen(pe->filename, "wb");
597 if (NULL == op) {
598 error_noabort("could not write '%s': %s", pe->filename, strerror(errno));
599 return -1;
600 }
601
602 pe->sizeofheaders = pe_file_align(pe,
603 sizeof (struct pe_header)
604 + pe->sec_count * sizeof (IMAGE_SECTION_HEADER)
605 );
606
607 file_offset = pe->sizeofheaders;
608
609 if (2 == pe->s1->verbose)
610 printf("-------------------------------"
611 "\n virt file size section" "\n");
612 for (i = 0; i < pe->sec_count; ++i) {
613 DWORD addr, size;
614 const char *sh_name;
615
616 si = pe->sec_info + i;
617 sh_name = si->name;
618 addr = si->sh_addr - pe->imagebase;
619 size = si->sh_size;
620 psh = &si->ish;
621
622 if (2 == pe->s1->verbose)
623 printf("%6x %6x %6x %s\n",
624 (unsigned)addr, (unsigned)file_offset, (unsigned)size, sh_name);
625
626 switch (si->cls) {
627 case sec_text:
628 pe_header.opthdr.BaseOfCode = addr;
629 pe_header.opthdr.AddressOfEntryPoint = addr + pe->start_addr;
630 break;
631
632 case sec_data:
633 #ifndef TCC_TARGET_X86_64
634 pe_header.opthdr.BaseOfData = addr;
635 #endif
636 break;
637
638 case sec_bss:
639 break;
640
641 case sec_reloc:
642 pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_BASERELOC, addr, size);
643 break;
644
645 case sec_rsrc:
646 pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_RESOURCE, addr, size);
647 break;
648
649 case sec_pdata:
650 pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_EXCEPTION, addr, size);
651 break;
652
653 case sec_stab:
654 break;
655 }
656
657 if (pe->thunk == pe->s1->sections[si->ord]) {
658 if (pe->imp_size) {
659 pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_IMPORT,
660 pe->imp_offs + addr, pe->imp_size);
661 pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_IAT,
662 pe->iat_offs + addr, pe->iat_size);
663 }
664 if (pe->exp_size) {
665 pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_EXPORT,
666 pe->exp_offs + addr, pe->exp_size);
667 }
668 }
669
670 strcpy((char*)psh->Name, sh_name);
671
672 psh->Characteristics = pe_sec_flags[si->cls];
673 psh->VirtualAddress = addr;
674 psh->Misc.VirtualSize = size;
675 pe_header.opthdr.SizeOfImage =
676 umax(pe_virtual_align(pe, size + addr), pe_header.opthdr.SizeOfImage);
677
678 if (si->data_size) {
679 psh->PointerToRawData = file_offset;
680 file_offset = pe_file_align(pe, file_offset + si->data_size);
681 psh->SizeOfRawData = file_offset - psh->PointerToRawData;
682 }
683 }
684
685 //pe_header.filehdr.TimeDateStamp = time(NULL);
686 pe_header.filehdr.NumberOfSections = pe->sec_count;
687 pe_header.opthdr.SizeOfHeaders = pe->sizeofheaders;
688 pe_header.opthdr.ImageBase = pe->imagebase;
689 if (pe->s1->pe_stack_size)
690 pe_header.opthdr.SizeOfStackReserve = pe->s1->pe_stack_size;
691 if (PE_DLL == pe->type)
692 pe_header.filehdr.Characteristics = CHARACTERISTICS_DLL;
693 else if (PE_GUI != pe->type)
694 pe_header.opthdr.Subsystem = 3;
695 if (pe->subsystem == 9) // WinCE
696 pe_header.opthdr.Subsystem = 9;
697
698 sum = 0;
699 pe_fwrite(&pe_header, sizeof pe_header, op, &sum);
700 for (i = 0; i < pe->sec_count; ++i)
701 pe_fwrite(&pe->sec_info[i].ish, sizeof(IMAGE_SECTION_HEADER), op, &sum);
702 pe_fpad(op, pe->sizeofheaders);
703 for (i = 0; i < pe->sec_count; ++i) {
704 si = pe->sec_info + i;
705 psh = &si->ish;
706 if (si->data_size) {
707 pe_fwrite(si->data, si->data_size, op, &sum);
708 file_offset = psh->PointerToRawData + psh->SizeOfRawData;
709 pe_fpad(op, file_offset);
710 }
711 }
712
713 pe_header.opthdr.CheckSum = sum + file_offset;
714 fseek(op, offsetof(struct pe_header, opthdr.CheckSum), SEEK_SET);
715 pe_fwrite(&pe_header.opthdr.CheckSum, sizeof pe_header.opthdr.CheckSum, op, NULL);
716 fclose (op);
717
718 if (2 == pe->s1->verbose)
719 printf("-------------------------------\n");
720 if (pe->s1->verbose)
721 printf("<- %s (%u bytes)\n", pe->filename, (unsigned)file_offset);
722
723 return 0;
724 }
725
726 /*----------------------------------------------------------------------------*/
727
728 #if defined(TCC_TARGET_X86_64)
729 #define ELFW_R_(type) ELF64_R_##type
730 #define ElfW_Rel ElfW(Rela)
731
732 #define REL_TYPE_DIRECT R_X86_64_64
733 #define R_XXX_THUNKFIX R_X86_64_PC32
734 #define R_XXX_RELATIVE R_X86_64_RELATIVE
735
736 #define ELFW_ST_BIND ELF64_ST_BIND
737 #define ELFW_ST_TYPE ELF64_ST_TYPE
738 #define ELFW_ST_INFO ELF64_ST_INFO
739 #elif defined(TCC_TARGET_I386)
740 #define ELFW_R_(type) ELF32_R_##type
741 #define ElfW_Rel ElfW(Rel)
742
743 #define REL_TYPE_DIRECT R_386_32
744 #define R_XXX_THUNKFIX R_386_32
745 #define R_XXX_RELATIVE R_386_RELATIVE
746
747 #define ELFW_ST_BIND ELF32_ST_BIND
748 #define ELFW_ST_TYPE ELF32_ST_TYPE
749 #define ELFW_ST_INFO ELF32_ST_INFO
750 #elif defined(TCC_TARGET_ARM)
751 #define ELFW_R_(type) ELF32_R_##type
752 #define ElfW_Rel ElfW(Rel)
753
754 #define REL_TYPE_DIRECT R_ARM_ABS32
755 #define R_XXX_THUNKFIX R_ARM_ABS32
756 #define R_XXX_RELATIVE R_ARM_RELATIVE
757
758 #define ELFW_ST_BIND ELF32_ST_BIND
759 #define ELFW_ST_TYPE ELF32_ST_TYPE
760 #define ELFW_ST_INFO ELF32_ST_INFO
761 #endif
762 /*----------------------------------------------------------------------------*/
763
764 static struct import_symbol *pe_add_import(struct pe_info *pe, int sym_index)
765 {
766 int i;
767 int dll_index;
768 struct pe_import_info *p;
769 struct import_symbol *s;
770 ElfW(Sym) *isym;
771
772 isym = (ElfW(Sym) *)pe->s1->dynsymtab_section->data + sym_index;
773 dll_index = isym->st_size;
774
775 i = dynarray_assoc ((void**)pe->imp_info, pe->imp_count, dll_index);
776 if (-1 != i) {
777 p = pe->imp_info[i];
778 goto found_dll;
779 }
780 p = tcc_mallocz(sizeof *p);
781 p->dll_index = dll_index;
782 dynarray_add((void***)&pe->imp_info, &pe->imp_count, p);
783
784 found_dll:
785 i = dynarray_assoc ((void**)p->symbols, p->sym_count, sym_index);
786 if (-1 != i)
787 return p->symbols[i];
788
789 s = tcc_mallocz(sizeof *s);
790 dynarray_add((void***)&p->symbols, &p->sym_count, s);
791 s->sym_index = sym_index;
792 return s;
793 }
794
795 /*----------------------------------------------------------------------------*/
796 static void pe_build_imports(struct pe_info *pe)
797 {
798 int thk_ptr, ent_ptr, dll_ptr, sym_cnt, i;
799 DWORD rva_base = pe->thunk->sh_addr - pe->imagebase;
800 int ndlls = pe->imp_count;
801
802 for (sym_cnt = i = 0; i < ndlls; ++i)
803 sym_cnt += pe->imp_info[i]->sym_count;
804
805 if (0 == sym_cnt)
806 return;
807
808 pe_align_section(pe->thunk, 16);
809
810 pe->imp_offs = dll_ptr = pe->thunk->data_offset;
811 pe->imp_size = (ndlls + 1) * sizeof(IMAGE_IMPORT_DESCRIPTOR);
812 pe->iat_offs = dll_ptr + pe->imp_size;
813 pe->iat_size = (sym_cnt + ndlls) * sizeof(ADDR3264);
814 section_ptr_add(pe->thunk, pe->imp_size + 2*pe->iat_size);
815
816 thk_ptr = pe->iat_offs;
817 ent_ptr = pe->iat_offs + pe->iat_size;
818
819 for (i = 0; i < pe->imp_count; ++i) {
820 IMAGE_IMPORT_DESCRIPTOR *hdr;
821 int k, n, dllindex;
822 ADDR3264 v;
823 struct pe_import_info *p = pe->imp_info[i];
824 const char *name;
825 DLLReference *dllref;
826
827 dllindex = p->dll_index;
828 if (dllindex)
829 name = (dllref = pe->s1->loaded_dlls[dllindex-1])->name;
830 else
831 name = "", dllref = NULL;
832
833 /* put the dll name into the import header */
834 v = put_elf_str(pe->thunk, name);
835 hdr = (IMAGE_IMPORT_DESCRIPTOR*)(pe->thunk->data + dll_ptr);
836 hdr->FirstThunk = thk_ptr + rva_base;
837 hdr->OriginalFirstThunk = ent_ptr + rva_base;
838 hdr->Name = v + rva_base;
839
840 for (k = 0, n = p->sym_count; k <= n; ++k) {
841 if (k < n) {
842 int iat_index = p->symbols[k]->iat_index;
843 int sym_index = p->symbols[k]->sym_index;
844 ElfW(Sym) *imp_sym = (ElfW(Sym) *)pe->s1->dynsymtab_section->data + sym_index;
845 ElfW(Sym) *org_sym = (ElfW(Sym) *)symtab_section->data + iat_index;
846 const char *name = pe->s1->dynsymtab_section->link->data + imp_sym->st_name;
847
848 org_sym->st_value = thk_ptr;
849 org_sym->st_shndx = pe->thunk->sh_num;
850 v = pe->thunk->data_offset + rva_base;
851 section_ptr_add(pe->thunk, sizeof(WORD)); /* hint, not used */
852 put_elf_str(pe->thunk, name);
853 #ifdef TCC_IS_NATIVE
854 if (pe->type == PE_RUN) {
855 v = imp_sym->st_value;
856 if (dllref) {
857 if ( !dllref->handle )
858 dllref->handle = LoadLibrary(dllref->name);
859 v = (ADDR3264)GetProcAddress(dllref->handle, name);
860 }
861 if (!v)
862 error_noabort("undefined symbol '%s'", name);
863 }
864 #endif
865 } else {
866 v = 0; /* last entry is zero */
867 }
868 *(ADDR3264*)(pe->thunk->data+thk_ptr) =
869 *(ADDR3264*)(pe->thunk->data+ent_ptr) = v;
870 thk_ptr += sizeof (ADDR3264);
871 ent_ptr += sizeof (ADDR3264);
872 }
873 dll_ptr += sizeof(IMAGE_IMPORT_DESCRIPTOR);
874 dynarray_reset(&p->symbols, &p->sym_count);
875 }
876 dynarray_reset(&pe->imp_info, &pe->imp_count);
877 }
878
879 /* ------------------------------------------------------------- */
880
881 struct pe_sort_sym
882 {
883 int index;
884 const char *name;
885 };
886
887 static int sym_cmp(const void *va, const void *vb)
888 {
889 const char *ca = (*(struct pe_sort_sym**)va)->name;
890 const char *cb = (*(struct pe_sort_sym**)vb)->name;
891 return strcmp(ca, cb);
892 }
893
894 static void pe_build_exports(struct pe_info *pe)
895 {
896 ElfW(Sym) *sym;
897 int sym_index, sym_end;
898 DWORD rva_base, func_o, name_o, ord_o, str_o;
899 IMAGE_EXPORT_DIRECTORY *hdr;
900 int sym_count, ord;
901 struct pe_sort_sym **sorted, *p;
902
903 FILE *op;
904 char buf[MAX_PATH];
905 const char *dllname;
906 const char *name;
907
908 rva_base = pe->thunk->sh_addr - pe->imagebase;
909 sym_count = 0, sorted = NULL, op = NULL;
910
911 sym_end = symtab_section->data_offset / sizeof(ElfW(Sym));
912 for (sym_index = 1; sym_index < sym_end; ++sym_index) {
913 sym = (ElfW(Sym)*)symtab_section->data + sym_index;
914 name = pe_export_name(pe->s1, sym);
915 if ((sym->st_other & 1)
916 /* export only symbols from actually written sections */
917 && pe->s1->sections[sym->st_shndx]->sh_addr) {
918 p = tcc_malloc(sizeof *p);
919 p->index = sym_index;
920 p->name = name;
921 dynarray_add((void***)&sorted, &sym_count, p);
922 }
923 #if 0
924 if (sym->st_other & 1)
925 printf("export: %s\n", name);
926 if (sym->st_other & 2)
927 printf("stdcall: %s\n", name);
928 #endif
929 }
930
931 if (0 == sym_count)
932 return;
933
934 qsort (sorted, sym_count, sizeof *sorted, sym_cmp);
935
936 pe_align_section(pe->thunk, 16);
937 dllname = tcc_basename(pe->filename);
938
939 pe->exp_offs = pe->thunk->data_offset;
940 func_o = pe->exp_offs + sizeof(IMAGE_EXPORT_DIRECTORY);
941 name_o = func_o + sym_count * sizeof (DWORD);
942 ord_o = name_o + sym_count * sizeof (DWORD);
943 str_o = ord_o + sym_count * sizeof(WORD);
944
945 hdr = section_ptr_add(pe->thunk, str_o - pe->exp_offs);
946 hdr->Characteristics = 0;
947 hdr->Base = 1;
948 hdr->NumberOfFunctions = sym_count;
949 hdr->NumberOfNames = sym_count;
950 hdr->AddressOfFunctions = func_o + rva_base;
951 hdr->AddressOfNames = name_o + rva_base;
952 hdr->AddressOfNameOrdinals = ord_o + rva_base;
953 hdr->Name = str_o + rva_base;
954 put_elf_str(pe->thunk, dllname);
955
956 #if 1
957 /* automatically write exports to <output-filename>.def */
958 strcpy(buf, pe->filename);
959 strcpy(tcc_fileextension(buf), ".def");
960 op = fopen(buf, "w");
961 if (NULL == op) {
962 error_noabort("could not create '%s': %s", buf, strerror(errno));
963 } else {
964 fprintf(op, "LIBRARY %s\n\nEXPORTS\n", dllname);
965 if (pe->s1->verbose)
966 printf("<- %s (%d symbols)\n", buf, sym_count);
967 }
968 #endif
969
970 for (ord = 0; ord < sym_count; ++ord)
971 {
972 p = sorted[ord], sym_index = p->index, name = p->name;
973 /* insert actual address later in pe_relocate_rva */
974 put_elf_reloc(symtab_section, pe->thunk,
975 func_o, R_XXX_RELATIVE, sym_index);
976 *(DWORD*)(pe->thunk->data + name_o)
977 = pe->thunk->data_offset + rva_base;
978 *(WORD*)(pe->thunk->data + ord_o)
979 = ord;
980 put_elf_str(pe->thunk, name);
981 func_o += sizeof (DWORD);
982 name_o += sizeof (DWORD);
983 ord_o += sizeof (WORD);
984 if (op)
985 fprintf(op, "%s\n", name);
986 }
987 pe->exp_size = pe->thunk->data_offset - pe->exp_offs;
988 dynarray_reset(&sorted, &sym_count);
989 if (op)
990 fclose(op);
991 }
992
993 /* ------------------------------------------------------------- */
994 static void pe_build_reloc (struct pe_info *pe)
995 {
996 DWORD offset, block_ptr, addr;
997 int count, i;
998 ElfW_Rel *rel, *rel_end;
999 Section *s = NULL, *sr;
1000
1001 offset = addr = block_ptr = count = i = 0;
1002 rel = rel_end = NULL;
1003
1004 for(;;) {
1005 if (rel < rel_end) {
1006 int type = ELFW_R_(TYPE)(rel->r_info);
1007 addr = rel->r_offset + s->sh_addr;
1008 ++ rel;
1009 if (type != REL_TYPE_DIRECT)
1010 continue;
1011 if (count == 0) { /* new block */
1012 block_ptr = pe->reloc->data_offset;
1013 section_ptr_add(pe->reloc, sizeof(struct pe_reloc_header));
1014 offset = addr & 0xFFFFFFFF<<12;
1015 }
1016 if ((addr -= offset) < (1<<12)) { /* one block spans 4k addresses */
1017 WORD *wp = section_ptr_add(pe->reloc, sizeof (WORD));
1018 *wp = addr | IMAGE_REL_BASED_HIGHLOW<<12;
1019 ++count;
1020 continue;
1021 }
1022 -- rel;
1023
1024 } else if (i < pe->sec_count) {
1025 sr = (s = pe->s1->sections[pe->sec_info[i++].ord])->reloc;
1026 if (sr) {
1027 rel = (ElfW_Rel *)sr->data;
1028 rel_end = (ElfW_Rel *)(sr->data + sr->data_offset);
1029 }
1030 continue;
1031 }
1032
1033 if (count) {
1034 /* store the last block and ready for a new one */
1035 struct pe_reloc_header *hdr;
1036 if (count & 1) /* align for DWORDS */
1037 section_ptr_add(pe->reloc, sizeof(WORD)), ++count;
1038 hdr = (struct pe_reloc_header *)(pe->reloc->data + block_ptr);
1039 hdr -> offset = offset - pe->imagebase;
1040 hdr -> size = count * sizeof(WORD) + sizeof(struct pe_reloc_header);
1041 count = 0;
1042 }
1043
1044 if (rel >= rel_end)
1045 break;
1046 }
1047 }
1048
1049 /* ------------------------------------------------------------- */
1050 static int pe_section_class(Section *s)
1051 {
1052 int type, flags;
1053 const char *name;
1054
1055 type = s->sh_type;
1056 flags = s->sh_flags;
1057 name = s->name;
1058 if (flags & SHF_ALLOC) {
1059 if (type == SHT_PROGBITS) {
1060 if (flags & SHF_EXECINSTR)
1061 return sec_text;
1062 if (flags & SHF_WRITE)
1063 return sec_data;
1064 if (0 == strcmp(name, ".rsrc"))
1065 return sec_rsrc;
1066 if (0 == strcmp(name, ".iedat"))
1067 return sec_idata;
1068 if (0 == strcmp(name, ".pdata"))
1069 return sec_pdata;
1070 return sec_other;
1071 } else if (type == SHT_NOBITS) {
1072 if (flags & SHF_WRITE)
1073 return sec_bss;
1074 }
1075 } else {
1076 if (0 == strcmp(name, ".reloc"))
1077 return sec_reloc;
1078 if (0 == strncmp(name, ".stab", 5)) /* .stab and .stabstr */
1079 return sec_stab;
1080 }
1081 return -1;
1082 }
1083
1084 static int pe_assign_addresses (struct pe_info *pe)
1085 {
1086 int i, k, o, c;
1087 DWORD addr;
1088 int *section_order;
1089 struct section_info *si;
1090 Section *s;
1091
1092 // pe->thunk = new_section(pe->s1, ".iedat", SHT_PROGBITS, SHF_ALLOC);
1093
1094 section_order = tcc_malloc(pe->s1->nb_sections * sizeof (int));
1095 for (o = k = 0 ; k < sec_last; ++k) {
1096 for (i = 1; i < pe->s1->nb_sections; ++i) {
1097 s = pe->s1->sections[i];
1098 if (k == pe_section_class(s)) {
1099 // printf("%s %d\n", s->name, k);
1100 s->sh_addr = pe->imagebase;
1101 section_order[o++] = i;
1102 }
1103 }
1104 }
1105
1106 pe->sec_info = tcc_mallocz(o * sizeof (struct section_info));
1107 addr = pe->imagebase + 1;
1108
1109 for (i = 0; i < o; ++i)
1110 {
1111 k = section_order[i];
1112 s = pe->s1->sections[k];
1113 c = pe_section_class(s);
1114 si = &pe->sec_info[pe->sec_count];
1115
1116 #ifdef PE_MERGE_DATA
1117 if (c == sec_bss && pe->sec_count && si[-1].cls == sec_data) {
1118 /* append .bss to .data */
1119 s->sh_addr = addr = ((addr-1) | (s->sh_addralign-1)) + 1;
1120 addr += s->data_offset;
1121 si[-1].sh_size = addr - si[-1].sh_addr;
1122 continue;
1123 }
1124 #endif
1125 strcpy(si->name, s->name);
1126 si->cls = c;
1127 si->ord = k;
1128 si->sh_addr = s->sh_addr = addr = pe_virtual_align(pe, addr);
1129 si->sh_flags = s->sh_flags;
1130
1131 if (c == sec_data && NULL == pe->thunk)
1132 pe->thunk = s;
1133
1134 if (s == pe->thunk) {
1135 pe_build_imports(pe);
1136 pe_build_exports(pe);
1137 }
1138
1139 if (c == sec_reloc)
1140 pe_build_reloc (pe);
1141
1142 if (s->data_offset)
1143 {
1144 if (s->sh_type != SHT_NOBITS) {
1145 si->data = s->data;
1146 si->data_size = s->data_offset;
1147 }
1148
1149 addr += s->data_offset;
1150 si->sh_size = s->data_offset;
1151 ++pe->sec_count;
1152 }
1153 // printf("%08x %05x %s\n", si->sh_addr, si->sh_size, si->name);
1154 }
1155
1156 #if 0
1157 for (i = 1; i < pe->s1->nb_sections; ++i) {
1158 Section *s = pe->s1->sections[i];
1159 int type = s->sh_type;
1160 int flags = s->sh_flags;
1161 printf("section %-16s %-10s %5x %s,%s,%s\n",
1162 s->name,
1163 type == SHT_PROGBITS ? "progbits" :
1164 type == SHT_NOBITS ? "nobits" :
1165 type == SHT_SYMTAB ? "symtab" :
1166 type == SHT_STRTAB ? "strtab" :
1167 type == SHT_RELX ? "rel" : "???",
1168 s->data_offset,
1169 flags & SHF_ALLOC ? "alloc" : "",
1170 flags & SHF_WRITE ? "write" : "",
1171 flags & SHF_EXECINSTR ? "exec" : ""
1172 );
1173 }
1174 pe->s1->verbose = 2;
1175 #endif
1176
1177 tcc_free(section_order);
1178 return 0;
1179 }
1180
1181 /* ------------------------------------------------------------- */
1182 static void pe_relocate_rva (struct pe_info *pe, Section *s)
1183 {
1184 Section *sr = s->reloc;
1185 ElfW_Rel *rel, *rel_end;
1186 rel_end = (ElfW_Rel *)(sr->data + sr->data_offset);
1187 for(rel = (ElfW_Rel *)sr->data; rel < rel_end; rel++) {
1188 if (ELFW_R_(TYPE)(rel->r_info) == R_XXX_RELATIVE) {
1189 int sym_index = ELFW_R_(SYM)(rel->r_info);
1190 DWORD addr = s->sh_addr;
1191 if (sym_index) {
1192 ElfW(Sym) *sym = (ElfW(Sym) *)symtab_section->data + sym_index;
1193 addr = sym->st_value;
1194 }
1195 // printf("reloc rva %08x %08x %s\n", (DWORD)rel->r_offset, addr, s->name);
1196 *(DWORD*)(s->data + rel->r_offset) += addr - pe->imagebase;
1197 }
1198 }
1199 }
1200
1201 /*----------------------------------------------------------------------------*/
1202
1203 static int pe_isafunc(int sym_index)
1204 {
1205 Section *sr = text_section->reloc;
1206 ElfW_Rel *rel, *rel_end;
1207 Elf32_Word info = ELF32_R_INFO(sym_index, R_386_PC32);
1208 if (!sr)
1209 return 0;
1210 rel_end = (ElfW_Rel *)(sr->data + sr->data_offset);
1211 for (rel = (ElfW_Rel *)sr->data; rel < rel_end; rel++)
1212 if (rel->r_info == info)
1213 return 1;
1214 return 0;
1215 }
1216
1217 /*----------------------------------------------------------------------------*/
1218 static int pe_check_symbols(struct pe_info *pe)
1219 {
1220 ElfW(Sym) *sym;
1221 int sym_index, sym_end;
1222 int ret = 0;
1223
1224 pe_align_section(text_section, 8);
1225
1226 sym_end = symtab_section->data_offset / sizeof(ElfW(Sym));
1227 for (sym_index = 1; sym_index < sym_end; ++sym_index) {
1228
1229 sym = (ElfW(Sym) *)symtab_section->data + sym_index;
1230 if (sym->st_shndx == SHN_UNDEF) {
1231
1232 const char *name = symtab_section->link->data + sym->st_name;
1233 unsigned type = ELFW_ST_TYPE(sym->st_info);
1234 int imp_sym = pe_find_import(pe->s1, sym);
1235 struct import_symbol *is;
1236
1237 if (0 == imp_sym)
1238 goto not_found;
1239
1240 if (type == STT_NOTYPE) {
1241 /* symbols from assembler have no type, find out which */
1242 if (pe_isafunc(sym_index))
1243 type = STT_FUNC;
1244 else
1245 type = STT_OBJECT;
1246 }
1247
1248 is = pe_add_import(pe, imp_sym);
1249
1250 if (type == STT_FUNC) {
1251 unsigned long offset = is->thk_offset;
1252 if (offset) {
1253 /* got aliased symbol, like stricmp and _stricmp */
1254
1255 } else {
1256 char buffer[100];
1257 WORD *p;
1258
1259 offset = text_section->data_offset;
1260 /* add the 'jmp IAT[x]' instruction */
1261 #ifdef TCC_TARGET_ARM
1262 p = section_ptr_add(text_section, 8+4); // room for code and address
1263 (*(DWORD*)(p)) = 0xE59FC000; // arm code ldr ip, [pc] ; PC+8+0 = 0001xxxx
1264 (*(DWORD*)(p+2)) = 0xE59CF000; // arm code ldr pc, [ip]
1265 #else
1266 p = section_ptr_add(text_section, 8);
1267 *p = 0x25FF;
1268 #ifdef TCC_TARGET_X86_64
1269 *(DWORD*)(p+1) = (DWORD)-4;
1270 #endif
1271 #endif
1272 /* add a helper symbol, will be patched later in
1273 pe_build_imports */
1274 sprintf(buffer, "IAT.%s", name);
1275 is->iat_index = put_elf_sym(
1276 symtab_section, 0, sizeof(DWORD),
1277 ELFW_ST_INFO(STB_GLOBAL, STT_OBJECT),
1278 0, SHN_UNDEF, buffer);
1279 #ifdef TCC_TARGET_ARM
1280 put_elf_reloc(symtab_section, text_section,
1281 offset + 8, R_XXX_THUNKFIX, is->iat_index); // offset to IAT position
1282 #else
1283 put_elf_reloc(symtab_section, text_section,
1284 offset + 2, R_XXX_THUNKFIX, is->iat_index);
1285 #endif
1286 is->thk_offset = offset;
1287 }
1288
1289 /* tcc_realloc might have altered sym's address */
1290 sym = (ElfW(Sym) *)symtab_section->data + sym_index;
1291
1292 /* patch the original symbol */
1293 sym->st_value = offset;
1294 sym->st_shndx = text_section->sh_num;
1295 sym->st_other &= ~1; /* do not export */
1296 continue;
1297 }
1298
1299 if (type == STT_OBJECT) { /* data, ptr to that should be */
1300 if (0 == is->iat_index) {
1301 /* original symbol will be patched later in pe_build_imports */
1302 is->iat_index = sym_index;
1303 continue;
1304 }
1305 }
1306
1307 not_found:
1308 error_noabort("undefined symbol '%s'", name);
1309 ret = -1;
1310
1311 } else if (pe->s1->rdynamic
1312 && ELFW_ST_BIND(sym->st_info) != STB_LOCAL) {
1313 /* if -rdynamic option, then export all non local symbols */
1314 sym->st_other |= 1;
1315 }
1316 }
1317 return ret;
1318 }
1319
1320 /*----------------------------------------------------------------------------*/
1321 #ifdef PE_PRINT_SECTIONS
1322 static void pe_print_section(FILE * f, Section * s)
1323 {
1324 /* just if you'r curious */
1325 BYTE *p, *e, b;
1326 int i, n, l, m;
1327 p = s->data;
1328 e = s->data + s->data_offset;
1329 l = e - p;
1330
1331 fprintf(f, "section \"%s\"", s->name);
1332 if (s->link)
1333 fprintf(f, "\nlink \"%s\"", s->link->name);
1334 if (s->reloc)
1335 fprintf(f, "\nreloc \"%s\"", s->reloc->name);
1336 fprintf(f, "\nv_addr %08X", (unsigned)s->sh_addr);
1337 fprintf(f, "\ncontents %08X", (unsigned)l);
1338 fprintf(f, "\n\n");
1339
1340 if (s->sh_type == SHT_NOBITS)
1341 return;
1342
1343 if (0 == l)
1344 return;
1345
1346 if (s->sh_type == SHT_SYMTAB)
1347 m = sizeof(ElfW(Sym));
1348 else if (s->sh_type == SHT_RELX)
1349 m = sizeof(ElfW_Rel);
1350 else
1351 m = 16;
1352
1353 fprintf(f, "%-8s", "offset");
1354 for (i = 0; i < m; ++i)
1355 fprintf(f, " %02x", i);
1356 n = 56;
1357
1358 if (s->sh_type == SHT_SYMTAB || s->sh_type == SHT_RELX) {
1359 const char *fields1[] = {
1360 "name",
1361 "value",
1362 "size",
1363 "bind",
1364 "type",
1365 "other",
1366 "shndx",
1367 NULL
1368 };
1369
1370 const char *fields2[] = {
1371 "offs",
1372 "type",
1373 "symb",
1374 NULL
1375 };
1376
1377 const char **p;
1378
1379 if (s->sh_type == SHT_SYMTAB)
1380 p = fields1, n = 106;
1381 else
1382 p = fields2, n = 58;
1383
1384 for (i = 0; p[i]; ++i)
1385 fprintf(f, "%6s", p[i]);
1386 fprintf(f, " symbol");
1387 }
1388
1389 fprintf(f, "\n");
1390 for (i = 0; i < n; ++i)
1391 fprintf(f, "-");
1392 fprintf(f, "\n");
1393
1394 for (i = 0; i < l;)
1395 {
1396 fprintf(f, "%08X", i);
1397 for (n = 0; n < m; ++n) {
1398 if (n + i < l)
1399 fprintf(f, " %02X", p[i + n]);
1400 else
1401 fprintf(f, " ");
1402 }
1403
1404 if (s->sh_type == SHT_SYMTAB) {
1405 ElfW(Sym) *sym = (ElfW(Sym) *) (p + i);
1406 const char *name = s->link->data + sym->st_name;
1407 fprintf(f, " %04X %04X %04X %02X %02X %02X %04X \"%s\"",
1408 (unsigned)sym->st_name,
1409 (unsigned)sym->st_value,
1410 (unsigned)sym->st_size,
1411 (unsigned)ELFW_ST_BIND(sym->st_info),
1412 (unsigned)ELFW_ST_TYPE(sym->st_info),
1413 (unsigned)sym->st_other,
1414 (unsigned)sym->st_shndx,
1415 name);
1416
1417 } else if (s->sh_type == SHT_RELX) {
1418 ElfW_Rel *rel = (ElfW_Rel *) (p + i);
1419 ElfW(Sym) *sym =
1420 (ElfW(Sym) *) s->link->data + ELFW_R_(SYM)(rel->r_info);
1421 const char *name = s->link->link->data + sym->st_name;
1422 fprintf(f, " %04X %02X %04X \"%s\"",
1423 (unsigned)rel->r_offset,
1424 (unsigned)ELFW_R_(TYPE)(rel->r_info),
1425 (unsigned)ELFW_R_(SYM)(rel->r_info),
1426 name);
1427 } else {
1428 fprintf(f, " ");
1429 for (n = 0; n < m; ++n) {
1430 if (n + i < l) {
1431 b = p[i + n];
1432 if (b < 32 || b >= 127)
1433 b = '.';
1434 fprintf(f, "%c", b);
1435 }
1436 }
1437 }
1438 i += m;
1439 fprintf(f, "\n");
1440 }
1441 fprintf(f, "\n\n");
1442 }
1443
1444 static void pe_print_sections(TCCState *s1, const char *fname)
1445 {
1446 Section *s;
1447 FILE *f;
1448 int i;
1449 f = fopen(fname, "w");
1450 for (i = 1; i < s1->nb_sections; ++i) {
1451 s = s1->sections[i];
1452 pe_print_section(f, s);
1453 }
1454 pe_print_section(f, s1->dynsymtab_section);
1455 fclose(f);
1456 }
1457 #endif
1458
1459 /* ------------------------------------------------------------- */
1460 /* helper function for load/store to insert one more indirection */
1461
1462 ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2)
1463 {
1464 Sym *sym;
1465 ElfW(Sym) *esym;
1466 int r2;
1467
1468 if ((sv->r & (VT_VALMASK|VT_SYM)) != (VT_CONST|VT_SYM) || (sv->r2 != VT_CONST))
1469 return sv;
1470 sym = sv->sym;
1471 if ((sym->type.t & (VT_EXTERN|VT_STATIC)) != VT_EXTERN)
1472 return sv;
1473 if (!sym->c)
1474 put_extern_sym(sym, NULL, 0, 0);
1475 esym = &((ElfW(Sym) *)symtab_section->data)[sym->c];
1476 if (!(esym->st_other & 4))
1477 return sv;
1478
1479 // printf("import %04x %04x %04x %s\n", sv->type.t, sym->type.t, sv->r, get_tok_str(sv->sym->v, NULL));
1480
1481 memset(v2, 0, sizeof *v2);
1482 v2->type.t = VT_PTR;
1483 v2->r = VT_CONST | VT_SYM | VT_LVAL;
1484 v2->sym = sv->sym;
1485
1486 r2 = get_reg(RC_INT);
1487 load(r2, v2);
1488 v2->r = r2;
1489
1490 if (sv->c.ui) {
1491 vpushv(v2);
1492 vpushi(sv->c.ui);
1493 gen_opi('+');
1494 *v2 = *vtop--;
1495 }
1496
1497 v2->type.t = sv->type.t;
1498 v2->r |= sv->r & VT_LVAL;
1499 return v2;
1500 }
1501
1502 ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, const void *value)
1503 {
1504 return add_elf_sym(
1505 s1->dynsymtab_section,
1506 (uplong)value,
1507 dllindex, /* st_size */
1508 ELFW_ST_INFO(STB_GLOBAL, STT_NOTYPE),
1509 0,
1510 value ? SHN_ABS : SHN_UNDEF,
1511 name
1512 );
1513 }
1514
1515 static int add_dllref(TCCState *s1, const char *dllname)
1516 {
1517 DLLReference *dllref;
1518 int i;
1519 for (i = 0; i < s1->nb_loaded_dlls; ++i)
1520 if (0 == strcmp(s1->loaded_dlls[i]->name, dllname))
1521 return i + 1;
1522 dllref = tcc_mallocz(sizeof(DLLReference) + strlen(dllname));
1523 strcpy(dllref->name, dllname);
1524 dynarray_add((void ***) &s1->loaded_dlls, &s1->nb_loaded_dlls, dllref);
1525 return s1->nb_loaded_dlls;
1526 }
1527
1528 /* ------------------------------------------------------------- */
1529
1530 static int read_mem(FILE *fp, unsigned offset, void *buffer, unsigned len)
1531 {
1532 fseek(fp, offset, 0);
1533 return len == fread(buffer, 1, len, fp);
1534 }
1535
1536 /* -------------------------------------------------------------
1537 * This is for compiled windows resources in 'coff' format
1538 * as generated by 'windres.exe -O coff ...'.
1539 */
1540
1541 static int pe_load_res(TCCState *s1, FILE *fp)
1542 {
1543 struct pe_rsrc_header hdr;
1544 Section *rsrc_section;
1545 int i, ret = -1;
1546 BYTE *ptr;
1547 unsigned offs;
1548
1549 if (!read_mem(fp, 0, &hdr, sizeof hdr))
1550 goto quit;
1551
1552 if (hdr.filehdr.Machine != 0x014C
1553 || hdr.filehdr.NumberOfSections != 1
1554 || strcmp(hdr.sectionhdr.Name, ".rsrc") != 0)
1555 goto quit;
1556
1557 rsrc_section = new_section(s1, ".rsrc", SHT_PROGBITS, SHF_ALLOC);
1558 ptr = section_ptr_add(rsrc_section, hdr.sectionhdr.SizeOfRawData);
1559 offs = hdr.sectionhdr.PointerToRawData;
1560 if (!read_mem(fp, offs, ptr, hdr.sectionhdr.SizeOfRawData))
1561 goto quit;
1562 offs = hdr.sectionhdr.PointerToRelocations;
1563 for (i = 0; i < hdr.sectionhdr.NumberOfRelocations; ++i)
1564 {
1565 struct pe_rsrc_reloc rel;
1566 if (!read_mem(fp, offs, &rel, sizeof rel))
1567 goto quit;
1568 // printf("rsrc_reloc: %x %x %x\n", rel.offset, rel.size, rel.type);
1569 if (rel.type != 7) /* DIR32NB */
1570 goto quit;
1571 put_elf_reloc(symtab_section, rsrc_section,
1572 rel.offset, R_XXX_RELATIVE, 0);
1573 offs += sizeof rel;
1574 }
1575 ret = 0;
1576 quit:
1577 return ret;
1578 }
1579
1580 /* ------------------------------------------------------------- */
1581 static char *trimfront(char *p)
1582 {
1583 while (*p && (unsigned char)*p <= ' ')
1584 ++p;
1585 return p;
1586 }
1587
1588 static char *trimback(char *a, char *e)
1589 {
1590 while (e > a && (unsigned char)e[-1] <= ' ')
1591 --e;
1592 *e = 0;;
1593 return a;
1594 }
1595
1596 static char *get_line(char *line, int size, FILE *fp)
1597 {
1598 if (NULL == fgets(line, size, fp))
1599 return NULL;
1600 trimback(line, strchr(line, 0));
1601 return trimfront(line);
1602 }
1603
1604 /* ------------------------------------------------------------- */
1605 static int pe_load_def(TCCState *s1, FILE *fp)
1606 {
1607 int state = 0, ret = -1, dllindex = 0;
1608 char line[400], dllname[80], *p;
1609
1610 for (;;) {
1611 p = get_line(line, sizeof line, fp);
1612 if (NULL == p)
1613 break;
1614 if (0 == *p || ';' == *p)
1615 continue;
1616 switch (state) {
1617 case 0:
1618 if (0 != strnicmp(p, "LIBRARY", 7))
1619 goto quit;
1620 strcpy(dllname, trimfront(p+7));
1621 ++state;
1622 continue;
1623
1624 case 1:
1625 if (0 != stricmp(p, "EXPORTS"))
1626 goto quit;
1627 ++state;
1628 continue;
1629
1630 case 2:
1631 dllindex = add_dllref(s1, dllname);
1632 ++state;
1633
1634 default:
1635 pe_putimport(s1, dllindex, p, NULL);
1636 continue;
1637 }
1638 }
1639 ret = 0;
1640 quit:
1641 return ret;
1642 }
1643
1644 /* ------------------------------------------------------------- */
1645 #define TINY_IMPDEF_GET_EXPORT_NAMES_ONLY
1646 #include "win32/tools/tiny_impdef.c"
1647
1648 static int pe_load_dll(TCCState *s1, const char *dllname, FILE *fp)
1649 {
1650 char *p, *q;
1651 int index;
1652 p = get_export_names(fp);
1653 if (!p)
1654 return -1;
1655 index = add_dllref(s1, dllname);
1656 for (q = p; *q; q += 1 + strlen(q))
1657 pe_putimport(s1, index, q, NULL);
1658 tcc_free(p);
1659 return 0;
1660 }
1661
1662 /* ------------------------------------------------------------- */
1663 ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd)
1664 {
1665 FILE *fp = fdopen(dup(fd), "rb");
1666 int ret = -1;
1667 char buf[10];
1668 if (fp) {
1669 if (0 == strcmp(tcc_fileextension(filename), ".def"))
1670 ret = pe_load_def(s1, fp);
1671 else if (pe_load_res(s1, fp) == 0)
1672 ret = 0;
1673 else if (read_mem(fp, 0, buf, sizeof buf) && 0 == strncmp(buf, "MZ", 2))
1674 ret = pe_load_dll(s1, tcc_basename(filename), fp);
1675 fclose(fp);
1676 }
1677 return ret;
1678 }
1679
1680 ST_FUNC int pe_add_dll(struct TCCState *s, const char *libname)
1681 {
1682 static const char *pat[] = {
1683 "%s.def", "lib%s.def", "%s.dll", "lib%s.dll", NULL
1684 };
1685 const char **p = pat;
1686 do {
1687 char buf[MAX_PATH];
1688 snprintf(buf, sizeof(buf), *p, libname);
1689 if (tcc_add_dll(s, buf, 0) == 0)
1690 return 0;
1691 } while (*++p);
1692 return -1;
1693 }
1694
1695 /* ------------------------------------------------------------- */
1696 #ifdef TCC_TARGET_X86_64
1697 ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack)
1698 {
1699 static const char uw_info[] = {
1700 0x01, // UBYTE: 3 Version , UBYTE: 5 Flags
1701 0x04, // UBYTE Size of prolog
1702 0x02, // UBYTE Count of unwind codes
1703 0x05, // UBYTE: 4 Frame Register (rbp), UBYTE: 4 Frame Register offset (scaled)
1704 // USHORT * n Unwind codes array
1705 // 0x0b, 0x01, 0xff, 0xff, // stack size
1706 0x04, 0x03, // set frame ptr (mov rsp -> rbp)
1707 0x01, 0x50 // push reg (rbp)
1708 };
1709
1710 struct pe_uw *pe_uw = &tcc_state->pe_unwind;
1711
1712 Section *uw, *pd;
1713 WORD *p1;
1714 DWORD *p2;
1715 unsigned o2;
1716
1717 uw = data_section;
1718 pd = pe_uw->pdata;
1719 if (NULL == pd)
1720 {
1721 pe_uw->pdata = pd = find_section(tcc_state, ".pdata");
1722 pe_uw->pdata->sh_addralign = 4;
1723 section_ptr_add(uw, -uw->data_offset & 3);
1724 pe_uw->offs_1 = uw->data_offset;
1725 p1 = section_ptr_add(uw, sizeof uw_info);
1726 /* use one common entry for all functions */
1727 memcpy(p1, uw_info, sizeof uw_info);
1728 pe_uw->sym_1 = put_elf_sym(symtab_section, 0, 0, 0, 0, text_section->sh_num, NULL);
1729 pe_uw->sym_2 = put_elf_sym(symtab_section, 0, 0, 0, 0, uw->sh_num, NULL);
1730 }
1731
1732 o2 = pd->data_offset;
1733 p2 = section_ptr_add(pd, 3 * sizeof (DWORD));
1734 /* record this function */
1735 p2[0] = start;
1736 p2[1] = end;
1737 p2[2] = pe_uw->offs_1;
1738 /* put relocations on it */
1739 put_elf_reloc(symtab_section, pd, o2, R_X86_64_RELATIVE, pe_uw->sym_1);
1740 put_elf_reloc(symtab_section, pd, o2+4, R_X86_64_RELATIVE, pe_uw->sym_1);
1741 put_elf_reloc(symtab_section, pd, o2+8, R_X86_64_RELATIVE, pe_uw->sym_2);
1742 }
1743 #endif
1744
1745 /* ------------------------------------------------------------- */
1746 #ifdef TCC_TARGET_X86_64
1747 #define PE_STDSYM(n,s) n
1748 #else
1749 #define PE_STDSYM(n,s) "_" n s
1750 #endif
1751
1752 static void pe_add_runtime_ex(TCCState *s1, struct pe_info *pe)
1753 {
1754 const char *start_symbol;
1755 unsigned long addr = 0;
1756 int pe_type = 0;
1757
1758 if (find_elf_sym(symtab_section, PE_STDSYM("WinMain","@16")))
1759 pe_type = PE_GUI;
1760 else
1761 if (TCC_OUTPUT_DLL == s1->output_type) {
1762 pe_type = PE_DLL;
1763 /* need this for 'tccelf.c:relocate_section()' */
1764 s1->output_type = TCC_OUTPUT_EXE;
1765 }
1766 else
1767 pe_type = PE_EXE;
1768
1769 start_symbol =
1770 TCC_OUTPUT_MEMORY == s1->output_type
1771 ? PE_GUI == pe_type ? "__runwinmain" : "_main"
1772 : PE_DLL == pe_type ? PE_STDSYM("__dllstart","@12")
1773 : PE_GUI == pe_type ? "__winstart" : "__start"
1774 ;
1775
1776 if (!s1->leading_underscore || strchr(start_symbol, '@')) {
1777 ++start_symbol;
1778 if (start_symbol[0] != '_')
1779 start_symbol = NULL;
1780 }
1781
1782 /* grab the startup code from libtcc1 */
1783 if (start_symbol)
1784 add_elf_sym(symtab_section,
1785 0, 0,
1786 ELFW_ST_INFO(STB_GLOBAL, STT_NOTYPE), 0,
1787 SHN_UNDEF, start_symbol);
1788
1789 if (0 == s1->nostdlib) {
1790 static const char *libs[] = {
1791 "tcc1", "msvcrt", "kernel32", "", "user32", "gdi32", NULL
1792 };
1793 const char **pp, *p;
1794 for (pp = libs; 0 != (p = *pp); ++pp) {
1795 if (0 == *p) {
1796 if (PE_DLL != pe_type && PE_GUI != pe_type)
1797 break;
1798 } else if (tcc_add_library(s1, p) < 0)
1799 error_noabort("cannot find library: %s", p);
1800 }
1801 }
1802
1803 if (TCC_OUTPUT_MEMORY == s1->output_type)
1804 pe_type = PE_RUN;
1805
1806 if (start_symbol) {
1807 addr = (uplong)tcc_get_symbol_err(s1, start_symbol);
1808 if (PE_RUN == pe_type && addr)
1809 /* for -run GUI's, put '_runwinmain' instead of 'main' */
1810 add_elf_sym(symtab_section,
1811 addr, 0,
1812 ELFW_ST_INFO(STB_GLOBAL, STT_NOTYPE), 0,
1813 text_section->sh_num, "main");
1814 }
1815
1816 pe->type = pe_type;
1817 pe->start_addr = addr;
1818 }
1819
1820 ST_FUNC int pe_output_file(TCCState * s1, const char *filename)
1821 {
1822 int ret;
1823 struct pe_info pe;
1824 int i;
1825
1826 memset(&pe, 0, sizeof pe);
1827 pe.filename = filename;
1828 pe.s1 = s1;
1829
1830 tcc_add_bcheck(s1);
1831 pe_add_runtime_ex(s1, &pe);
1832 relocate_common_syms(); /* assign bss adresses */
1833 tcc_add_linker_symbols(s1);
1834
1835 ret = pe_check_symbols(&pe);
1836 if (ret)
1837 ;
1838 else if (filename) {
1839 if (PE_DLL == pe.type) {
1840 pe.reloc = new_section(pe.s1, ".reloc", SHT_PROGBITS, 0);
1841 /* XXX: check if is correct for arm-pe target */
1842 pe.imagebase = 0x10000000;
1843 } else {
1844 #if defined(TCC_TARGET_ARM)
1845 pe.imagebase = 0x00010000;
1846 #else
1847 pe.imagebase = 0x00400000;
1848 #endif
1849 }
1850
1851 /* if no subsystem specified, we use "console" subsystem by default */
1852 if (s1->pe_subsystem != 0)
1853 pe.subsystem = s1->pe_subsystem;
1854 else
1855 #if defined(TCC_TARGET_ARM)
1856 pe.subsystem = 9;
1857 #else
1858 pe.subsystem = 3;
1859 #endif
1860 /* set default file/section alignment */
1861 if (pe.subsystem == 1) {
1862 pe.section_align = 0x20;
1863 pe.file_align = 0x20;
1864 } else {
1865 pe.section_align = 0x1000;
1866 pe.file_align = 0x200;
1867 }
1868
1869 if (s1->section_align != 0)
1870 pe.section_align = s1->section_align;
1871 if (s1->pe_file_align != 0)
1872 pe.file_align = s1->pe_file_align;
1873
1874 if ((pe.subsystem >= 10) && (pe.subsystem <= 12))
1875 pe.imagebase = 0;
1876
1877 if (s1->has_text_addr)
1878 pe.imagebase = s1->text_addr;
1879
1880 pe_assign_addresses(&pe);
1881 relocate_syms(s1, 0);
1882 for (i = 1; i < s1->nb_sections; ++i) {
1883 Section *s = s1->sections[i];
1884 if (s->reloc) {
1885 relocate_section(s1, s);
1886 pe_relocate_rva(&pe, s);
1887 }
1888 }
1889 if (s1->nb_errors)
1890 ret = -1;
1891 else
1892 ret = pe_write(&pe);
1893 tcc_free(pe.sec_info);
1894 } else {
1895 #ifndef TCC_IS_NATIVE
1896 error_noabort("-run supported only on native platform");
1897 #endif
1898 pe.thunk = data_section;
1899 pe_build_imports(&pe);
1900 }
1901
1902 #ifdef PE_PRINT_SECTIONS
1903 pe_print_sections(s1, "tcc.log");
1904 #endif
1905 return ret;
1906 }
1907
1908 /* ------------------------------------------------------------- */
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