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tccpe: use ElfW macros
[tinycc.git] / tccpe.c
blob8dc46bd8d59077969fea7656e6287ac709b88ab4
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 #ifdef TCC_TARGET_PE
22
23 #define ST_FN static
24 #define ST_DATA static
25 #define PUB_FN
26
27 #ifndef _WIN32
28 #define stricmp strcasecmp
29 #define strnicmp strncasecmp
30 #endif
31
32 #ifndef MAX_PATH
33 #define MAX_PATH 260
34 #endif
35
36 #define PE_MERGE_DATA
37 // #define PE_PRINT_SECTIONS
38
39 #if defined _WIN32 && (defined _WIN64) == (defined TCC_TARGET_X86_64)
40 #define TCC_IS_NATIVE
41 #endif
42
43 /* ----------------------------------------------------------- */
44 #ifndef IMAGE_NT_SIGNATURE
45 /* ----------------------------------------------------------- */
46 /* definitions below are from winnt.h */
47
48 typedef unsigned char BYTE;
49 typedef unsigned short WORD;
50 typedef unsigned long DWORD;
51 #pragma pack(push, 1)
52
53 typedef struct _IMAGE_DOS_HEADER { /* DOS .EXE header */
54 WORD e_magic; /* Magic number */
55 WORD e_cblp; /* Bytes on last page of file */
56 WORD e_cp; /* Pages in file */
57 WORD e_crlc; /* Relocations */
58 WORD e_cparhdr; /* Size of header in paragraphs */
59 WORD e_minalloc; /* Minimum extra paragraphs needed */
60 WORD e_maxalloc; /* Maximum extra paragraphs needed */
61 WORD e_ss; /* Initial (relative) SS value */
62 WORD e_sp; /* Initial SP value */
63 WORD e_csum; /* Checksum */
64 WORD e_ip; /* Initial IP value */
65 WORD e_cs; /* Initial (relative) CS value */
66 WORD e_lfarlc; /* File address of relocation table */
67 WORD e_ovno; /* Overlay number */
68 WORD e_res[4]; /* Reserved words */
69 WORD e_oemid; /* OEM identifier (for e_oeminfo) */
70 WORD e_oeminfo; /* OEM information; e_oemid specific */
71 WORD e_res2[10]; /* Reserved words */
72 DWORD e_lfanew; /* File address of new exe header */
73 } IMAGE_DOS_HEADER, *PIMAGE_DOS_HEADER;
74
75 #define IMAGE_NT_SIGNATURE 0x00004550 /* PE00 */
76 #define SIZE_OF_NT_SIGNATURE 4
77
78 typedef struct _IMAGE_FILE_HEADER {
79 WORD Machine;
80 WORD NumberOfSections;
81 DWORD TimeDateStamp;
82 DWORD PointerToSymbolTable;
83 DWORD NumberOfSymbols;
84 WORD SizeOfOptionalHeader;
85 WORD Characteristics;
86 } IMAGE_FILE_HEADER, *PIMAGE_FILE_HEADER;
87
88
89 #define IMAGE_SIZEOF_FILE_HEADER 20
90
91 typedef struct _IMAGE_DATA_DIRECTORY {
92 DWORD VirtualAddress;
93 DWORD Size;
94 } IMAGE_DATA_DIRECTORY, *PIMAGE_DATA_DIRECTORY;
95
96
97 typedef struct _IMAGE_OPTIONAL_HEADER {
98 /* Standard fields. */
99 WORD Magic;
100 BYTE MajorLinkerVersion;
101 BYTE MinorLinkerVersion;
102 DWORD SizeOfCode;
103 DWORD SizeOfInitializedData;
104 DWORD SizeOfUninitializedData;
105 DWORD AddressOfEntryPoint;
106 DWORD BaseOfCode;
107 DWORD BaseOfData;
108
109 /* NT additional fields. */
110 DWORD ImageBase;
111 DWORD SectionAlignment;
112 DWORD FileAlignment;
113 WORD MajorOperatingSystemVersion;
114 WORD MinorOperatingSystemVersion;
115 WORD MajorImageVersion;
116 WORD MinorImageVersion;
117 WORD MajorSubsystemVersion;
118 WORD MinorSubsystemVersion;
119 DWORD Win32VersionValue;
120 DWORD SizeOfImage;
121 DWORD SizeOfHeaders;
122 DWORD CheckSum;
123 WORD Subsystem;
124 WORD DllCharacteristics;
125 DWORD SizeOfStackReserve;
126 DWORD SizeOfStackCommit;
127 DWORD SizeOfHeapReserve;
128 DWORD SizeOfHeapCommit;
129 DWORD LoaderFlags;
130 DWORD NumberOfRvaAndSizes;
131 IMAGE_DATA_DIRECTORY DataDirectory[16];
132
133 } IMAGE_OPTIONAL_HEADER, *PIMAGE_OPTIONAL_HEADER;
134
135
136 #define IMAGE_DIRECTORY_ENTRY_EXPORT 0 /* Export Directory */
137 #define IMAGE_DIRECTORY_ENTRY_IMPORT 1 /* Import Directory */
138 #define IMAGE_DIRECTORY_ENTRY_RESOURCE 2 /* Resource Directory */
139 #define IMAGE_DIRECTORY_ENTRY_EXCEPTION 3 /* Exception Directory */
140 #define IMAGE_DIRECTORY_ENTRY_SECURITY 4 /* Security Directory */
141 #define IMAGE_DIRECTORY_ENTRY_BASERELOC 5 /* Base Relocation Table */
142 #define IMAGE_DIRECTORY_ENTRY_DEBUG 6 /* Debug Directory */
143 /* IMAGE_DIRECTORY_ENTRY_COPYRIGHT 7 (X86 usage) */
144 #define IMAGE_DIRECTORY_ENTRY_ARCHITECTURE 7 /* Architecture Specific Data */
145 #define IMAGE_DIRECTORY_ENTRY_GLOBALPTR 8 /* RVA of GP */
146 #define IMAGE_DIRECTORY_ENTRY_TLS 9 /* TLS Directory */
147 #define IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG 10 /* Load Configuration Directory */
148 #define IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT 11 /* Bound Import Directory in headers */
149 #define IMAGE_DIRECTORY_ENTRY_IAT 12 /* Import Address Table */
150 #define IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT 13 /* Delay Load Import Descriptors */
151 #define IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR 14 /* COM Runtime descriptor */
152
153 /* Section header format. */
154 #define IMAGE_SIZEOF_SHORT_NAME 8
155
156 typedef struct _IMAGE_SECTION_HEADER {
157 BYTE Name[IMAGE_SIZEOF_SHORT_NAME];
158 union {
159 DWORD PhysicalAddress;
160 DWORD VirtualSize;
161 } Misc;
162 DWORD VirtualAddress;
163 DWORD SizeOfRawData;
164 DWORD PointerToRawData;
165 DWORD PointerToRelocations;
166 DWORD PointerToLinenumbers;
167 WORD NumberOfRelocations;
168 WORD NumberOfLinenumbers;
169 DWORD Characteristics;
170 } IMAGE_SECTION_HEADER, *PIMAGE_SECTION_HEADER;
171
172 #define IMAGE_SIZEOF_SECTION_HEADER 40
173
174 typedef struct _IMAGE_BASE_RELOCATION {
175 DWORD VirtualAddress;
176 DWORD SizeOfBlock;
177 // WORD TypeOffset[1];
178 } IMAGE_BASE_RELOCATION;
179
180 #define IMAGE_SIZEOF_BASE_RELOCATION 8
181
182 #define IMAGE_REL_BASED_ABSOLUTE 0
183 #define IMAGE_REL_BASED_HIGH 1
184 #define IMAGE_REL_BASED_LOW 2
185 #define IMAGE_REL_BASED_HIGHLOW 3
186 #define IMAGE_REL_BASED_HIGHADJ 4
187 #define IMAGE_REL_BASED_MIPS_JMPADDR 5
188 #define IMAGE_REL_BASED_SECTION 6
189 #define IMAGE_REL_BASED_REL32 7
190
191 #pragma pack(pop)
192
193 /* ----------------------------------------------------------- */
194 #endif /* ndef IMAGE_NT_SIGNATURE */
195 /* ----------------------------------------------------------- */
196
197 #pragma pack(push, 1)
198
199 struct pe_header
200 {
201 IMAGE_DOS_HEADER doshdr;
202 BYTE dosstub[0x40];
203 DWORD nt_sig;
204 IMAGE_FILE_HEADER filehdr;
205 IMAGE_OPTIONAL_HEADER opthdr;
206 };
207
208 struct pe_import_header {
209 DWORD first_entry;
210 DWORD time_date;
211 DWORD forwarder;
212 DWORD lib_name_offset;
213 DWORD first_thunk;
214 };
215
216 struct pe_export_header {
217 DWORD Characteristics;
218 DWORD TimeDateStamp;
219 DWORD Version;
220 DWORD Name;
221 DWORD Base;
222 DWORD NumberOfFunctions;
223 DWORD NumberOfNames;
224 DWORD AddressOfFunctions;
225 DWORD AddressOfNames;
226 DWORD AddressOfNameOrdinals;
227 };
228
229 struct pe_reloc_header {
230 DWORD offset;
231 DWORD size;
232 };
233
234 struct pe_rsrc_header {
235 struct _IMAGE_FILE_HEADER filehdr;
236 struct _IMAGE_SECTION_HEADER sectionhdr;
237 };
238
239 struct pe_rsrc_reloc {
240 DWORD offset;
241 DWORD size;
242 WORD type;
243 };
244
245 #pragma pack(pop)
246
247 /* ----------------------------------------------------------- */
248 ST_DATA struct pe_header pe_header = {
249 {
250 /* IMAGE_DOS_HEADER doshdr */
251 0x5A4D, /*WORD e_magic; Magic number */
252 0x0090, /*WORD e_cblp; Bytes on last page of file */
253 0x0003, /*WORD e_cp; Pages in file */
254 0x0000, /*WORD e_crlc; Relocations */
255
256 0x0004, /*WORD e_cparhdr; Size of header in paragraphs */
257 0x0000, /*WORD e_minalloc; Minimum extra paragraphs needed */
258 0xFFFF, /*WORD e_maxalloc; Maximum extra paragraphs needed */
259 0x0000, /*WORD e_ss; Initial (relative) SS value */
260
261 0x00B8, /*WORD e_sp; Initial SP value */
262 0x0000, /*WORD e_csum; Checksum */
263 0x0000, /*WORD e_ip; Initial IP value */
264 0x0000, /*WORD e_cs; Initial (relative) CS value */
265 0x0040, /*WORD e_lfarlc; File address of relocation table */
266 0x0000, /*WORD e_ovno; Overlay number */
267 {0,0,0,0}, /*WORD e_res[4]; Reserved words */
268 0x0000, /*WORD e_oemid; OEM identifier (for e_oeminfo) */
269 0x0000, /*WORD e_oeminfo; OEM information; e_oemid specific */
270 {0,0,0,0,0,0,0,0,0,0}, /*WORD e_res2[10]; Reserved words */
271 0x00000080 /*DWORD e_lfanew; File address of new exe header */
272 },{
273 /* BYTE dosstub[0x40] */
274 /* 14 code bytes + "This program cannot be run in DOS mode.\r\r\n$" + 6 * 0x00 */
275 0x0e,0x1f,0xba,0x0e,0x00,0xb4,0x09,0xcd,0x21,0xb8,0x01,0x4c,0xcd,0x21,0x54,0x68,
276 0x69,0x73,0x20,0x70,0x72,0x6f,0x67,0x72,0x61,0x6d,0x20,0x63,0x61,0x6e,0x6e,0x6f,
277 0x74,0x20,0x62,0x65,0x20,0x72,0x75,0x6e,0x20,0x69,0x6e,0x20,0x44,0x4f,0x53,0x20,
278 0x6d,0x6f,0x64,0x65,0x2e,0x0d,0x0d,0x0a,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
279 },
280 0x00004550, /* DWORD nt_sig = IMAGE_NT_SIGNATURE */
281 {
282 /* IMAGE_FILE_HEADER filehdr */
283 0x014C, /*WORD Machine; */
284 0x0003, /*WORD NumberOfSections; */
285 0x00000000, /*DWORD TimeDateStamp; */
286 0x00000000, /*DWORD PointerToSymbolTable; */
287 0x00000000, /*DWORD NumberOfSymbols; */
288 0x00E0, /*WORD SizeOfOptionalHeader; */
289 0x030F /*WORD Characteristics; */
290 },{
291 /* IMAGE_OPTIONAL_HEADER opthdr */
292 /* Standard fields. */
293 0x010B, /*WORD Magic; */
294 0x06, /*BYTE MajorLinkerVersion; */
295 0x00, /*BYTE MinorLinkerVersion; */
296 0x00000000, /*DWORD SizeOfCode; */
297 0x00000000, /*DWORD SizeOfInitializedData; */
298 0x00000000, /*DWORD SizeOfUninitializedData; */
299 0x00000000, /*DWORD AddressOfEntryPoint; */
300 0x00000000, /*DWORD BaseOfCode; */
301 0x00000000, /*DWORD BaseOfData; */
302
303 /* NT additional fields. */
304 0x00400000, /*DWORD ImageBase; */
305 0x00001000, /*DWORD SectionAlignment; */
306 0x00000200, /*DWORD FileAlignment; */
307 0x0004, /*WORD MajorOperatingSystemVersion; */
308 0x0000, /*WORD MinorOperatingSystemVersion; */
309 0x0000, /*WORD MajorImageVersion; */
310 0x0000, /*WORD MinorImageVersion; */
311 0x0004, /*WORD MajorSubsystemVersion; */
312 0x0000, /*WORD MinorSubsystemVersion; */
313 0x00000000, /*DWORD Win32VersionValue; */
314 0x00000000, /*DWORD SizeOfImage; */
315 0x00000200, /*DWORD SizeOfHeaders; */
316 0x00000000, /*DWORD CheckSum; */
317 0x0002, /*WORD Subsystem; */
318 0x0000, /*WORD DllCharacteristics; */
319 0x00100000, /*DWORD SizeOfStackReserve; */
320 0x00001000, /*DWORD SizeOfStackCommit; */
321 0x00100000, /*DWORD SizeOfHeapReserve; */
322 0x00001000, /*DWORD SizeOfHeapCommit; */
323 0x00000000, /*DWORD LoaderFlags; */
324 0x00000010, /*DWORD NumberOfRvaAndSizes; */
325
326 /* IMAGE_DATA_DIRECTORY DataDirectory[16]; */
327 {{0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0},
328 {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}}
329 }};
330
331 /* ------------------------------------------------------------- */
332 /* internal temporary structures */
333
334 /*
335 #define IMAGE_SCN_CNT_CODE 0x00000020
336 #define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040
337 #define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080
338 #define IMAGE_SCN_MEM_DISCARDABLE 0x02000000
339 #define IMAGE_SCN_MEM_SHARED 0x10000000
340 #define IMAGE_SCN_MEM_EXECUTE 0x20000000
341 #define IMAGE_SCN_MEM_READ 0x40000000
342 #define IMAGE_SCN_MEM_WRITE 0x80000000
343 */
344
345 enum {
346 sec_text = 0,
347 sec_data ,
348 sec_bss ,
349 sec_idata ,
350 sec_other ,
351 sec_rsrc ,
352 sec_stab ,
353 sec_reloc ,
354 sec_last
355 };
356
357 ST_DATA DWORD pe_sec_flags[] = {
358 0x60000020, /* ".text" , */
359 0xC0000040, /* ".data" , */
360 0xC0000080, /* ".bss" , */
361 0x40000040, /* ".idata" , */
362 0xE0000060, /* < other > , */
363 0x40000040, /* ".rsrc" , */
364 0x42000802, /* ".stab" , */
365 0x42000040, /* ".reloc" , */
366 };
367
368 struct section_info {
369 int cls, ord;
370 char name[32];
371 DWORD sh_addr;
372 DWORD sh_size;
373 DWORD sh_flags;
374 unsigned char *data;
375 DWORD data_size;
376 IMAGE_SECTION_HEADER ish;
377 };
378
379 struct import_symbol {
380 int sym_index;
381 int iat_index;
382 int thk_offset;
383 };
384
385 struct pe_import_info {
386 int dll_index;
387 int sym_count;
388 struct import_symbol **symbols;
389 };
390
391 struct pe_info {
392 TCCState *s1;
393 Section *reloc;
394 Section *thunk;
395 const char *filename;
396 int type;
397 DWORD sizeofheaders;
398 DWORD imagebase;
399 DWORD start_addr;
400 DWORD imp_offs;
401 DWORD imp_size;
402 DWORD iat_offs;
403 DWORD iat_size;
404 DWORD exp_offs;
405 DWORD exp_size;
406 struct section_info *sec_info;
407 int sec_count;
408 struct pe_import_info **imp_info;
409 int imp_count;
410 };
411
412 /* ------------------------------------------------------------- */
413
414 #define PE_NUL 0
415 #define PE_DLL 1
416 #define PE_GUI 2
417 #define PE_EXE 3
418 #define PE_RUN 4
419
420 void error_noabort(const char *, ...);
421
422 #ifdef _WIN32
423 void dbg_printf (const char *fmt, ...)
424 {
425 char buffer[4000];
426 va_list arg;
427 int x;
428 va_start(arg, fmt);
429 x = vsprintf (buffer, fmt, arg);
430 strcpy(buffer+x, "\n");
431 OutputDebugString(buffer);
432 }
433 #endif
434
435 /* --------------------------------------------*/
436
437 ST_FN const char* get_alt_symbol(char *buffer, const char *symbol)
438 {
439 const char *p;
440 p = strrchr(symbol, '@');
441 if (p && isnum(p[1]) && symbol[0] == '_') { /* stdcall decor */
442 strcpy(buffer, symbol+1)[p-symbol-1] = 0;
443 } else if (symbol[0] != '_') { /* try non-ansi function */
444 buffer[0] = '_', strcpy(buffer + 1, symbol);
445 } else if (0 == memcmp(symbol, "__imp__", 7)) { /* mingw 2.0 */
446 strcpy(buffer, symbol + 6);
447 } else if (0 == memcmp(symbol, "_imp___", 7)) { /* mingw 3.7 */
448 strcpy(buffer, symbol + 6);
449 } else {
450 return symbol;
451 }
452 return buffer;
453 }
454
455 ST_FN int pe_find_import(TCCState * s1, const char *symbol)
456 {
457 char buffer[200];
458 const char *s;
459 int sym_index, n = 0;
460 do {
461 s = n ? get_alt_symbol(buffer, symbol) : symbol;
462 sym_index = find_elf_sym(s1->dynsymtab_section, s);
463 // printf("find (%d) %d %s\n", n, sym_index, s);
464 } while (0 == sym_index && ++n < 2);
465 return sym_index;
466 }
467
468 /*----------------------------------------------------------------------------*/
469
470 ST_FN int dynarray_assoc(void **pp, int n, int key)
471 {
472 int i;
473 for (i = 0; i < n; ++i, ++pp)
474 if (key == **(int **) pp)
475 return i;
476 return -1;
477 }
478
479 #if 0
480 ST_FN DWORD umin(DWORD a, DWORD b)
481 {
482 return a < b ? a : b;
483 }
484 #endif
485
486 ST_FN DWORD umax(DWORD a, DWORD b)
487 {
488 return a < b ? b : a;
489 }
490
491 ST_FN void pe_fpad(FILE *fp, DWORD new_pos)
492 {
493 DWORD pos = ftell(fp);
494 while (++pos <= new_pos)
495 fputc(0, fp);
496 }
497
498 ST_FN DWORD pe_file_align(DWORD n)
499 {
500 return (n + (0x200 - 1)) & ~(0x200 - 1);
501 }
502
503 ST_FN DWORD pe_virtual_align(DWORD n)
504 {
505 return (n + (0x1000 - 1)) & ~(0x1000 - 1);
506 }
507
508 ST_FN void pe_align_section(Section *s, int a)
509 {
510 int i = s->data_offset & (a-1);
511 if (i)
512 section_ptr_add(s, a - i);
513 }
514
515 ST_FN void pe_set_datadir(int dir, DWORD addr, DWORD size)
516 {
517 pe_header.opthdr.DataDirectory[dir].VirtualAddress = addr;
518 pe_header.opthdr.DataDirectory[dir].Size = size;
519 }
520
521 /*----------------------------------------------------------------------------*/
522 ST_FN int pe_write(struct pe_info *pe)
523 {
524 int i;
525 FILE *op;
526 DWORD file_offset, r;
527
528 op = fopen(pe->filename, "wb");
529 if (NULL == op) {
530 error_noabort("could not write '%s': %s", pe->filename, strerror(errno));
531 return 1;
532 }
533
534 pe->sizeofheaders = pe_file_align(
535 sizeof pe_header
536 + pe->sec_count * sizeof (IMAGE_SECTION_HEADER)
537 );
538
539 file_offset = pe->sizeofheaders;
540 pe_fpad(op, file_offset);
541
542 if (2 == pe->s1->verbose)
543 printf("-------------------------------"
544 "\n virt file size section" "\n");
545
546 for (i = 0; i < pe->sec_count; ++i) {
547 struct section_info *si = pe->sec_info + i;
548 const char *sh_name = si->name;
549 unsigned long addr = si->sh_addr - pe->imagebase;
550 unsigned long size = si->sh_size;
551 IMAGE_SECTION_HEADER *psh = &si->ish;
552
553 if (2 == pe->s1->verbose)
554 printf("%6lx %6lx %6lx %s\n",
555 addr, file_offset, size, sh_name);
556
557 switch (si->cls) {
558 case sec_text:
559 pe_header.opthdr.BaseOfCode = addr;
560 pe_header.opthdr.AddressOfEntryPoint = addr + pe->start_addr;
561 break;
562
563 case sec_data:
564 pe_header.opthdr.BaseOfData = addr;
565 break;
566
567 case sec_bss:
568 break;
569
570 case sec_reloc:
571 pe_set_datadir(IMAGE_DIRECTORY_ENTRY_BASERELOC, addr, size);
572 break;
573
574 case sec_rsrc:
575 pe_set_datadir(IMAGE_DIRECTORY_ENTRY_RESOURCE, addr, size);
576 break;
577
578 case sec_stab:
579 break;
580 }
581
582 if (pe->thunk == pe->s1->sections[si->ord]) {
583 if (pe->imp_size) {
584 pe_set_datadir(IMAGE_DIRECTORY_ENTRY_IMPORT,
585 pe->imp_offs + addr, pe->imp_size);
586 pe_set_datadir(IMAGE_DIRECTORY_ENTRY_IAT,
587 pe->iat_offs + addr, pe->iat_size);
588 }
589 if (pe->exp_size) {
590 pe_set_datadir(IMAGE_DIRECTORY_ENTRY_EXPORT,
591 pe->exp_offs + addr, pe->exp_size);
592 }
593 }
594
595 strcpy((char*)psh->Name, sh_name);
596
597 psh->Characteristics = pe_sec_flags[si->cls];
598 psh->VirtualAddress = addr;
599 psh->Misc.VirtualSize = size;
600 pe_header.opthdr.SizeOfImage =
601 umax(pe_virtual_align(size + addr), pe_header.opthdr.SizeOfImage);
602
603 if (si->data_size) {
604 psh->PointerToRawData = r = file_offset;
605 fwrite(si->data, 1, si->data_size, op);
606 file_offset = pe_file_align(file_offset + si->data_size);
607 psh->SizeOfRawData = file_offset - r;
608 pe_fpad(op, file_offset);
609 }
610 }
611
612 // pe_header.filehdr.TimeDateStamp = time(NULL);
613 pe_header.filehdr.NumberOfSections = pe->sec_count;
614 pe_header.opthdr.SizeOfHeaders = pe->sizeofheaders;
615 pe_header.opthdr.ImageBase = pe->imagebase;
616 if (PE_DLL == pe->type)
617 pe_header.filehdr.Characteristics = 0x230E;
618 else if (PE_GUI != pe->type)
619 pe_header.opthdr.Subsystem = 3;
620
621 fseek(op, SEEK_SET, 0);
622 fwrite(&pe_header, 1, sizeof pe_header, op);
623 for (i = 0; i < pe->sec_count; ++i)
624 fwrite(&pe->sec_info[i].ish, 1, sizeof(IMAGE_SECTION_HEADER), op);
625 fclose (op);
626
627 if (2 == pe->s1->verbose)
628 printf("-------------------------------\n");
629 if (pe->s1->verbose)
630 printf("<- %s (%lu bytes)\n", pe->filename, file_offset);
631
632 return 0;
633 }
634
635 /*----------------------------------------------------------------------------*/
636
637 #ifdef TCC_TARGET_X86_64
638 #define ELFW_R_(type) ELF64_R_##type
639 #define ElfW_Rel ElfW(Rela)
640
641 #define REL_TYPE_DIRECT R_X86_64_64
642 #define R_XXX_THUNKFIX R_X86_64_PC32
643 #define R_XXX_RELATIVE R_X86_64_RELATIVE
644
645 #define ELFW_ST_BIND ELF64_ST_BIND
646 #define ELFW_ST_TYPE ELF64_ST_TYPE
647 #define ELFW_ST_INFO ELF64_ST_INFO
648 #else
649 #define ELFW_R_(type) ELF32_R_##type
650 #define ElfW_Rel ElfW(Rel)
651
652 #define REL_TYPE_DIRECT R_386_32
653 #define R_XXX_THUNKFIX R_386_32
654 #define R_XXX_RELATIVE R_386_RELATIVE
655
656 #define ELFW_ST_BIND ELF32_ST_BIND
657 #define ELFW_ST_TYPE ELF32_ST_TYPE
658 #define ELFW_ST_INFO ELF32_ST_INFO
659 #endif
660 /*----------------------------------------------------------------------------*/
661
662 ST_FN struct import_symbol *pe_add_import(struct pe_info *pe, int sym_index)
663 {
664 int i;
665 int dll_index;
666 struct pe_import_info *p;
667 struct import_symbol *s;
668
669 dll_index = ((ElfW(Sym) *)pe->s1->dynsymtab_section->data + sym_index)->st_value;
670 if (0 == dll_index)
671 return NULL;
672
673 i = dynarray_assoc ((void**)pe->imp_info, pe->imp_count, dll_index);
674 if (-1 != i) {
675 p = pe->imp_info[i];
676 goto found_dll;
677 }
678 p = tcc_mallocz(sizeof *p);
679 p->dll_index = dll_index;
680 dynarray_add((void***)&pe->imp_info, &pe->imp_count, p);
681
682 found_dll:
683 i = dynarray_assoc ((void**)p->symbols, p->sym_count, sym_index);
684 if (-1 != i)
685 return p->symbols[i];
686
687 s = tcc_mallocz(sizeof *s);
688 dynarray_add((void***)&p->symbols, &p->sym_count, s);
689 s->sym_index = sym_index;
690 return s;
691 }
692
693 /*----------------------------------------------------------------------------*/
694 ST_FN void pe_build_imports(struct pe_info *pe)
695 {
696 int thk_ptr, ent_ptr, dll_ptr, sym_cnt, i;
697 DWORD rva_base = pe->thunk->sh_addr - pe->imagebase;
698 int ndlls = pe->imp_count;
699
700 for (sym_cnt = i = 0; i < ndlls; ++i)
701 sym_cnt += pe->imp_info[i]->sym_count;
702
703 if (0 == sym_cnt)
704 return;
705
706 pe_align_section(pe->thunk, 16);
707
708 pe->imp_offs = dll_ptr = pe->thunk->data_offset;
709 pe->imp_size = (ndlls + 1) * sizeof(struct pe_import_header);
710 pe->iat_offs = dll_ptr + pe->imp_size;
711 pe->iat_size = (sym_cnt + ndlls) * sizeof(DWORD);
712 section_ptr_add(pe->thunk, pe->imp_size + 2*pe->iat_size);
713
714 thk_ptr = pe->iat_offs;
715 ent_ptr = pe->iat_offs + pe->iat_size;
716
717 for (i = 0; i < pe->imp_count; ++i) {
718 struct pe_import_header *hdr;
719 int k, n;
720 DWORD v;
721 struct pe_import_info *p = pe->imp_info[i];
722 const char *name = pe->s1->loaded_dlls[p->dll_index-1]->name;
723
724 /* put the dll name into the import header */
725 v = put_elf_str(pe->thunk, name);
726
727 hdr = (struct pe_import_header*)(pe->thunk->data + dll_ptr);
728 hdr->first_thunk = thk_ptr + rva_base;
729 hdr->first_entry = ent_ptr + rva_base;
730 hdr->lib_name_offset = v + rva_base;
731
732 for (k = 0, n = p->sym_count; k <= n; ++k) {
733 if (k < n) {
734 int iat_index = p->symbols[k]->iat_index;
735 int sym_index = p->symbols[k]->sym_index;
736 ElfW(Sym) *imp_sym = (ElfW(Sym) *)pe->s1->dynsymtab_section->data + sym_index;
737 ElfW(Sym) *org_sym = (ElfW(Sym) *)symtab_section->data + iat_index;
738 const char *name = pe->s1->dynsymtab_section->link->data + imp_sym->st_name;
739
740 org_sym->st_value = thk_ptr;
741 org_sym->st_shndx = pe->thunk->sh_num;
742 v = pe->thunk->data_offset + rva_base;
743 section_ptr_add(pe->thunk, sizeof(WORD)); /* hint, not used */
744 put_elf_str(pe->thunk, name);
745 #ifdef TCC_IS_NATIVE
746 if (pe->type == PE_RUN) {
747 DLLReference *dllref = pe->s1->loaded_dlls[imp_sym->st_value-1];
748 if ( !dllref->handle )
749 dllref->handle = LoadLibrary(dllref->name);
750 v = (DWORD)GetProcAddress(dllref->handle, name);
751 if (!v)
752 error_noabort("undefined symbol '%s'", name);
753 }
754 #endif
755 } else {
756 v = 0; /* last entry is zero */
757 }
758 *(DWORD*)(pe->thunk->data+thk_ptr) =
759 *(DWORD*)(pe->thunk->data+ent_ptr) = v;
760 thk_ptr += sizeof (DWORD);
761 ent_ptr += sizeof (DWORD);
762 }
763 dll_ptr += sizeof(struct pe_import_header);
764 dynarray_reset(&p->symbols, &p->sym_count);
765 }
766 dynarray_reset(&pe->imp_info, &pe->imp_count);
767 }
768
769 /* ------------------------------------------------------------- */
770 /*
771 For now only functions are exported. Export of data
772 would work, but import requires compiler support to
773 do an additional indirection.
774
775 For instance:
776 __declspec(dllimport) extern int something;
777
778 needs to be translated to:
779
780 *(int*)something
781 */
782
783 struct pe_sort_sym
784 {
785 int index;
786 const char *name;
787 };
788
789 ST_FN int sym_cmp(const void *va, const void *vb)
790 {
791 const char *ca = (*(struct pe_sort_sym**)va)->name;
792 const char *cb = (*(struct pe_sort_sym**)vb)->name;
793 return strcmp(ca, cb);
794 }
795
796 ST_FN void pe_build_exports(struct pe_info *pe)
797 {
798 ElfW(Sym) *sym;
799 int sym_index, sym_end;
800 DWORD rva_base, func_o, name_o, ord_o, str_o;
801 struct pe_export_header *hdr;
802 int sym_count, ord;
803 struct pe_sort_sym **sorted, *p;
804
805 FILE *op;
806 char buf[MAX_PATH];
807 const char *dllname;
808 const char *name;
809
810 rva_base = pe->thunk->sh_addr - pe->imagebase;
811 sym_count = 0, sorted = NULL, op = NULL;
812
813 sym_end = symtab_section->data_offset / sizeof(ElfW(Sym));
814 for (sym_index = 1; sym_index < sym_end; ++sym_index) {
815 sym = (ElfW(Sym)*)symtab_section->data + sym_index;
816 name = symtab_section->link->data + sym->st_name;
817 if ((sym->st_other & 1)
818 /* export only symbols from actually written sections */
819 && pe->s1->sections[sym->st_shndx]->sh_addr) {
820 p = tcc_malloc(sizeof *p);
821 p->index = sym_index;
822 p->name = name;
823 dynarray_add((void***)&sorted, &sym_count, p);
824 }
825 #if 0
826 if (sym->st_other & 1)
827 printf("export: %s\n", name);
828 if (sym->st_other & 2)
829 printf("stdcall: %s\n", name);
830 #endif
831 }
832
833 if (0 == sym_count)
834 return;
835
836 qsort (sorted, sym_count, sizeof *sorted, sym_cmp);
837
838 pe_align_section(pe->thunk, 16);
839 dllname = tcc_basename(pe->filename);
840
841 pe->exp_offs = pe->thunk->data_offset;
842 func_o = pe->exp_offs + sizeof(struct pe_export_header);
843 name_o = func_o + sym_count * sizeof (DWORD);
844 ord_o = name_o + sym_count * sizeof (DWORD);
845 str_o = ord_o + sym_count * sizeof(WORD);
846
847 hdr = section_ptr_add(pe->thunk, str_o - pe->exp_offs);
848 hdr->Characteristics = 0;
849 hdr->Base = 1;
850 hdr->NumberOfFunctions = sym_count;
851 hdr->NumberOfNames = sym_count;
852 hdr->AddressOfFunctions = func_o + rva_base;
853 hdr->AddressOfNames = name_o + rva_base;
854 hdr->AddressOfNameOrdinals = ord_o + rva_base;
855 hdr->Name = str_o + rva_base;
856 put_elf_str(pe->thunk, dllname);
857
858 #if 1
859 /* automatically write exports to <output-filename>.def */
860 strcpy(buf, pe->filename);
861 strcpy(tcc_fileextension(buf), ".def");
862 op = fopen(buf, "w");
863 if (NULL == op) {
864 error_noabort("could not create '%s': %s", buf, strerror(errno));
865 } else {
866 fprintf(op, "LIBRARY %s\n\nEXPORTS\n", dllname);
867 if (pe->s1->verbose)
868 printf("<- %s (%d symbols)\n", buf, sym_count);
869 }
870 #endif
871
872 for (ord = 0; ord < sym_count; ++ord)
873 {
874 p = sorted[ord], sym_index = p->index, name = p->name;
875 /* insert actual address later in pe_relocate_rva */
876 put_elf_reloc(symtab_section, pe->thunk,
877 func_o, R_XXX_RELATIVE, sym_index);
878 *(DWORD*)(pe->thunk->data + name_o)
879 = pe->thunk->data_offset + rva_base;
880 *(WORD*)(pe->thunk->data + ord_o)
881 = ord;
882 put_elf_str(pe->thunk, name);
883 func_o += sizeof (DWORD);
884 name_o += sizeof (DWORD);
885 ord_o += sizeof (WORD);
886 if (op)
887 fprintf(op, "%s\n", name);
888 }
889 pe->exp_size = pe->thunk->data_offset - pe->exp_offs;
890 dynarray_reset(&sorted, &sym_count);
891 }
892
893 /* ------------------------------------------------------------- */
894 ST_FN void pe_build_reloc (struct pe_info *pe)
895 {
896 DWORD offset, block_ptr, addr;
897 int count, i;
898 ElfW_Rel *rel, *rel_end;
899 Section *s = NULL, *sr;
900
901 offset = addr = block_ptr = count = i = 0;
902 rel = rel_end = NULL;
903
904 for(;;) {
905 if (rel < rel_end) {
906 int type = ELFW_R_(TYPE)(rel->r_info);
907 addr = rel->r_offset + s->sh_addr;
908 ++ rel;
909 if (type != REL_TYPE_DIRECT)
910 continue;
911 if (count == 0) { /* new block */
912 block_ptr = pe->reloc->data_offset;
913 section_ptr_add(pe->reloc, sizeof(struct pe_reloc_header));
914 offset = addr & 0xFFFFFFFF<<12;
915 }
916 if ((addr -= offset) < (1<<12)) { /* one block spans 4k addresses */
917 WORD *wp = section_ptr_add(pe->reloc, sizeof (WORD));
918 *wp = addr | IMAGE_REL_BASED_HIGHLOW<<12;
919 ++count;
920 continue;
921 }
922 -- rel;
923
924 } else if (i < pe->sec_count) {
925 sr = (s = pe->s1->sections[pe->sec_info[i++].ord])->reloc;
926 if (sr) {
927 rel = (ElfW_Rel *)sr->data;
928 rel_end = (ElfW_Rel *)(sr->data + sr->data_offset);
929 }
930 continue;
931 }
932
933 if (count) {
934 /* store the last block and ready for a new one */
935 struct pe_reloc_header *hdr;
936 if (count & 1) /* align for DWORDS */
937 section_ptr_add(pe->reloc, sizeof(WORD)), ++count;
938 hdr = (struct pe_reloc_header *)(pe->reloc->data + block_ptr);
939 hdr -> offset = offset - pe->imagebase;
940 hdr -> size = count * sizeof(WORD) + sizeof(struct pe_reloc_header);
941 count = 0;
942 }
943
944 if (rel >= rel_end)
945 break;
946 }
947 }
948
949 /* ------------------------------------------------------------- */
950 ST_FN int pe_section_class(Section *s)
951 {
952 int type, flags;
953 const char *name;
954
955 type = s->sh_type;
956 flags = s->sh_flags;
957 name = s->name;
958 if (flags & SHF_ALLOC) {
959 if (type == SHT_PROGBITS) {
960 if (flags & SHF_EXECINSTR)
961 return sec_text;
962 if (flags & SHF_WRITE)
963 return sec_data;
964 if (0 == strcmp(name, ".rsrc"))
965 return sec_rsrc;
966 if (0 == strcmp(name, ".iedat"))
967 return sec_idata;
968 return sec_other;
969 } else if (type == SHT_NOBITS) {
970 if (flags & SHF_WRITE)
971 return sec_bss;
972 }
973 } else {
974 if (0 == strcmp(name, ".reloc"))
975 return sec_reloc;
976 if (0 == strncmp(name, ".stab", 5)) /* .stab and .stabstr */
977 return sec_stab;
978 }
979 return -1;
980 }
981
982 ST_FN int pe_assign_addresses (struct pe_info *pe)
983 {
984 int i, k, o, c;
985 DWORD addr;
986 int *section_order;
987 struct section_info *si;
988 Section *s;
989
990 // pe->thunk = new_section(pe->s1, ".iedat", SHT_PROGBITS, SHF_ALLOC);
991
992 section_order = tcc_malloc(pe->s1->nb_sections * sizeof (int));
993 for (o = k = 0 ; k < sec_last; ++k) {
994 for (i = 1; i < pe->s1->nb_sections; ++i) {
995 s = pe->s1->sections[i];
996 if (k == pe_section_class(s)) {
997 // printf("%s %d\n", s->name, k);
998 s->sh_addr = pe->imagebase;
999 section_order[o++] = i;
1000 }
1001 }
1002 }
1003
1004 pe->sec_info = tcc_mallocz(o * sizeof (struct section_info));
1005 addr = pe->imagebase + 1;
1006
1007 for (i = 0; i < o; ++i)
1008 {
1009 k = section_order[i];
1010 s = pe->s1->sections[k];
1011 c = pe_section_class(s);
1012 si = &pe->sec_info[pe->sec_count];
1013
1014 #ifdef PE_MERGE_DATA
1015 if (c == sec_bss && pe->sec_count && si[-1].cls == sec_data) {
1016 /* append .bss to .data */
1017 s->sh_addr = addr = ((addr-1) | 15) + 1;
1018 addr += s->data_offset;
1019 si[-1].sh_size = addr - si[-1].sh_addr;
1020 continue;
1021 }
1022 #endif
1023 strcpy(si->name, s->name);
1024 si->cls = c;
1025 si->ord = k;
1026 si->sh_addr = s->sh_addr = addr = pe_virtual_align(addr);
1027 si->sh_flags = s->sh_flags;
1028
1029 if (c == sec_data && NULL == pe->thunk)
1030 pe->thunk = s;
1031
1032 if (s == pe->thunk) {
1033 pe_build_imports(pe);
1034 pe_build_exports(pe);
1035 }
1036
1037 if (c == sec_reloc)
1038 pe_build_reloc (pe);
1039
1040 if (s->data_offset)
1041 {
1042 if (s->sh_type != SHT_NOBITS) {
1043 si->data = s->data;
1044 si->data_size = s->data_offset;
1045 }
1046
1047 addr += s->data_offset;
1048 si->sh_size = s->data_offset;
1049 ++pe->sec_count;
1050 }
1051 // printf("%08x %05x %s\n", si->sh_addr, si->sh_size, si->name);
1052 }
1053
1054 #if 0
1055 for (i = 1; i < pe->s1->nb_sections; ++i) {
1056 Section *s = pe->s1->sections[i];
1057 int type = s->sh_type;
1058 int flags = s->sh_flags;
1059 printf("section %-16s %-10s %5x %s,%s,%s\n",
1060 s->name,
1061 type == SHT_PROGBITS ? "progbits" :
1062 type == SHT_NOBITS ? "nobits" :
1063 type == SHT_SYMTAB ? "symtab" :
1064 type == SHT_STRTAB ? "strtab" :
1065 type == SHT_RELX ? "rel" : "???",
1066 s->data_offset,
1067 flags & SHF_ALLOC ? "alloc" : "",
1068 flags & SHF_WRITE ? "write" : "",
1069 flags & SHF_EXECINSTR ? "exec" : ""
1070 );
1071 }
1072 pe->s1->verbose = 2;
1073 #endif
1074
1075 tcc_free(section_order);
1076 return 0;
1077 }
1078
1079 /* ------------------------------------------------------------- */
1080 ST_FN void pe_relocate_rva (struct pe_info *pe, Section *s)
1081 {
1082 Section *sr = s->reloc;
1083 ElfW_Rel *rel, *rel_end;
1084 rel_end = (ElfW_Rel *)(sr->data + sr->data_offset);
1085 for(rel = (ElfW_Rel *)sr->data; rel < rel_end; rel++) {
1086 if (ELFW_R_(TYPE)(rel->r_info) == R_XXX_RELATIVE) {
1087 int sym_index = ELFW_R_(SYM)(rel->r_info);
1088 DWORD addr = s->sh_addr;
1089 if (sym_index) {
1090 ElfW(Sym) *sym = (ElfW(Sym) *)symtab_section->data + sym_index;
1091 addr = sym->st_value;
1092 }
1093 // printf("reloc rva %08x %08x\n", (DWORD)rel->r_offset, addr);
1094 *(DWORD*)(s->data + rel->r_offset) += addr - pe->imagebase;
1095 }
1096 }
1097 }
1098
1099 /*----------------------------------------------------------------------------*/
1100 ST_FN int pe_check_symbols(struct pe_info *pe)
1101 {
1102 ElfW(Sym) *sym;
1103 int sym_index, sym_end;
1104 int ret = 0;
1105
1106 pe_align_section(text_section, 8);
1107
1108 sym_end = symtab_section->data_offset / sizeof(ElfW(Sym));
1109 for (sym_index = 1; sym_index < sym_end; ++sym_index) {
1110
1111 sym = (ElfW(Sym) *)symtab_section->data + sym_index;
1112 if (sym->st_shndx == SHN_UNDEF) {
1113
1114 const char *name = symtab_section->link->data + sym->st_name;
1115 unsigned type = ELFW_ST_TYPE(sym->st_info);
1116 int imp_sym = pe_find_import(pe->s1, name);
1117 struct import_symbol *is;
1118
1119 if (0 == imp_sym)
1120 goto not_found;
1121 is = pe_add_import(pe, imp_sym);
1122 if (!is)
1123 goto not_found;
1124
1125 if (type == STT_FUNC) {
1126 unsigned long offset = is->thk_offset;
1127 if (offset) {
1128 /* got aliased symbol, like stricmp and _stricmp */
1129
1130 } else {
1131 char buffer[100];
1132
1133 offset = text_section->data_offset;
1134 /* add the 'jmp IAT[x]' instruction */
1135 *(WORD*)section_ptr_add(text_section, 8) = 0x25FF;
1136
1137 /* add a helper symbol, will be patched later in
1138 pe_build_imports */
1139 sprintf(buffer, "IAT.%s", name);
1140 is->iat_index = put_elf_sym(
1141 symtab_section, 0, sizeof(DWORD),
1142 ELFW_ST_INFO(STB_GLOBAL, STT_OBJECT),
1143 0, SHN_UNDEF, buffer);
1144 put_elf_reloc(symtab_section, text_section,
1145 offset + 2, R_XXX_THUNKFIX, is->iat_index);
1146 is->thk_offset = offset;
1147 }
1148
1149 /* tcc_realloc might have altered sym's address */
1150 sym = (ElfW(Sym) *)symtab_section->data + sym_index;
1151
1152 /* patch the original symbol */
1153 sym->st_value = offset;
1154 sym->st_shndx = text_section->sh_num;
1155 sym->st_other &= ~1; /* do not export */
1156 continue;
1157 }
1158
1159 if (type == STT_OBJECT) { /* data, ptr to that should be */
1160 if (0 == is->iat_index) {
1161 /* original symbol will be patched later in pe_build_imports */
1162 is->iat_index = sym_index;
1163 continue;
1164 }
1165 }
1166
1167 not_found:
1168 error_noabort("undefined symbol '%s'", name);
1169 ret = 1;
1170
1171 } else if (pe->s1->rdynamic
1172 && ELFW_ST_BIND(sym->st_info) != STB_LOCAL) {
1173 /* if -rdynamic option, then export all non local symbols */
1174 sym->st_other |= 1;
1175 }
1176 }
1177 return ret;
1178 }
1179
1180 /*----------------------------------------------------------------------------*/
1181 #ifdef PE_PRINT_SECTIONS
1182 ST_FN void pe_print_section(FILE * f, Section * s)
1183 {
1184 /* just if you'r curious */
1185 BYTE *p, *e, b;
1186 int i, n, l, m;
1187 p = s->data;
1188 e = s->data + s->data_offset;
1189 l = e - p;
1190
1191 fprintf(f, "section \"%s\"", s->name);
1192 if (s->link)
1193 fprintf(f, "\nlink \"%s\"", s->link->name);
1194 if (s->reloc)
1195 fprintf(f, "\nreloc \"%s\"", s->reloc->name);
1196 fprintf(f, "\nv_addr %08X", (unsigned)s->sh_addr);
1197 fprintf(f, "\ncontents %08X", (unsigned)l);
1198 fprintf(f, "\n\n");
1199
1200 if (s->sh_type == SHT_NOBITS)
1201 return;
1202
1203 if (0 == l)
1204 return;
1205
1206 if (s->sh_type == SHT_SYMTAB)
1207 m = sizeof(ElfW(Sym));
1208 else if (s->sh_type == SHT_RELX)
1209 m = sizeof(ElfW_Rel);
1210 else
1211 m = 16;
1212
1213 fprintf(f, "%-8s", "offset");
1214 for (i = 0; i < m; ++i)
1215 fprintf(f, " %02x", i);
1216 n = 56;
1217
1218 if (s->sh_type == SHT_SYMTAB || s->sh_type == SHT_RELX) {
1219 const char *fields1[] = {
1220 "name",
1221 "value",
1222 "size",
1223 "bind",
1224 "type",
1225 "other",
1226 "shndx",
1227 NULL
1228 };
1229
1230 const char *fields2[] = {
1231 "offs",
1232 "type",
1233 "symb",
1234 NULL
1235 };
1236
1237 const char **p;
1238
1239 if (s->sh_type == SHT_SYMTAB)
1240 p = fields1, n = 106;
1241 else
1242 p = fields2, n = 58;
1243
1244 for (i = 0; p[i]; ++i)
1245 fprintf(f, "%6s", p[i]);
1246 fprintf(f, " symbol");
1247 }
1248
1249 fprintf(f, "\n");
1250 for (i = 0; i < n; ++i)
1251 fprintf(f, "-");
1252 fprintf(f, "\n");
1253
1254 for (i = 0; i < l;)
1255 {
1256 fprintf(f, "%08X", i);
1257 for (n = 0; n < m; ++n) {
1258 if (n + i < l)
1259 fprintf(f, " %02X", p[i + n]);
1260 else
1261 fprintf(f, " ");
1262 }
1263
1264 if (s->sh_type == SHT_SYMTAB) {
1265 ElfW(Sym) *sym = (ElfW(Sym) *) (p + i);
1266 const char *name = s->link->data + sym->st_name;
1267 fprintf(f, " %04X %04X %04X %02X %02X %02X %04X \"%s\"",
1268 (unsigned)sym->st_name,
1269 (unsigned)sym->st_value,
1270 (unsigned)sym->st_size,
1271 (unsigned)ELFW_ST_BIND(sym->st_info),
1272 (unsigned)ELFW_ST_TYPE(sym->st_info),
1273 (unsigned)sym->st_other,
1274 (unsigned)sym->st_shndx,
1275 name);
1276
1277 } else if (s->sh_type == SHT_RELX) {
1278 ElfW_Rel *rel = (ElfW_Rel *) (p + i);
1279 ElfW(Sym) *sym =
1280 (ElfW(Sym) *) s->link->data + ELFW_R_(SYM)(rel->r_info);
1281 const char *name = s->link->link->data + sym->st_name;
1282 fprintf(f, " %04X %02X %04X \"%s\"",
1283 (unsigned)rel->r_offset,
1284 (unsigned)ELFW_R_(TYPE)(rel->r_info),
1285 (unsigned)ELFW_R_(SYM)(rel->r_info),
1286 name);
1287 } else {
1288 fprintf(f, " ");
1289 for (n = 0; n < m; ++n) {
1290 if (n + i < l) {
1291 b = p[i + n];
1292 if (b < 32 || b >= 127)
1293 b = '.';
1294 fprintf(f, "%c", b);
1295 }
1296 }
1297 }
1298 i += m;
1299 fprintf(f, "\n");
1300 }
1301 fprintf(f, "\n\n");
1302 }
1303
1304 ST_FN void pe_print_sections(TCCState *s1, const char *fname)
1305 {
1306 Section *s;
1307 FILE *f;
1308 int i;
1309 f = fopen(fname, "wt");
1310 for (i = 1; i < s1->nb_sections; ++i) {
1311 s = s1->sections[i];
1312 pe_print_section(f, s);
1313 }
1314 pe_print_section(f, s1->dynsymtab_section);
1315 fclose(f);
1316 }
1317 #endif
1318
1319 /* -------------------------------------------------------------
1320 * This is for compiled windows resources in 'coff' format
1321 * as generated by 'windres.exe -O coff ...'.
1322 */
1323
1324 PUB_FN int pe_test_res_file(void *v, int size)
1325 {
1326 struct pe_rsrc_header *p = (struct pe_rsrc_header *)v;
1327 return
1328 size >= IMAGE_SIZEOF_FILE_HEADER + IMAGE_SIZEOF_SHORT_NAME /* = 28 */
1329 && p->filehdr.Machine == 0x014C
1330 && 1 == p->filehdr.NumberOfSections
1331 && 0 == strcmp(p->sectionhdr.Name, ".rsrc")
1332 ;
1333 }
1334
1335 ST_FN int read_n(int fd, void *ptr, unsigned size)
1336 {
1337 return size == read(fd, ptr, size);
1338 }
1339
1340 PUB_FN int pe_load_res_file(TCCState *s1, int fd)
1341 {
1342 struct pe_rsrc_header hdr;
1343 Section *rsrc_section;
1344 int i, ret = -1;
1345 BYTE *ptr;
1346
1347 lseek (fd, 0, SEEK_SET);
1348 if (!read_n(fd, &hdr, sizeof hdr))
1349 goto quit;
1350 if (!pe_test_res_file(&hdr, sizeof hdr))
1351 goto quit;
1352
1353 rsrc_section = new_section(s1, ".rsrc", SHT_PROGBITS, SHF_ALLOC);
1354 ptr = section_ptr_add(rsrc_section, hdr.sectionhdr.SizeOfRawData);
1355 lseek (fd, hdr.sectionhdr.PointerToRawData, SEEK_SET);
1356 if (!read_n(fd, ptr, hdr.sectionhdr.SizeOfRawData))
1357 goto quit;
1358
1359 lseek (fd, hdr.sectionhdr.PointerToRelocations, SEEK_SET);
1360 for (i = 0; i < hdr.sectionhdr.NumberOfRelocations; ++i)
1361 {
1362 struct pe_rsrc_reloc rel;
1363 if (!read_n(fd, &rel, sizeof rel))
1364 goto quit;
1365 // printf("rsrc_reloc: %x %x %x\n", rel.offset, rel.size, rel.type);
1366 if (rel.type != 7) /* DIR32NB */
1367 goto quit;
1368 put_elf_reloc(symtab_section, rsrc_section,
1369 rel.offset, R_XXX_RELATIVE, 0);
1370 }
1371 ret = 0;
1372 quit:
1373 if (ret)
1374 error_noabort("unrecognized resource file format");
1375 return ret;
1376 }
1377
1378 /* ------------------------------------------------------------- */
1379 ST_FN char *trimfront(char *p)
1380 {
1381 while (*p && (unsigned char)*p <= ' ')
1382 ++p;
1383 return p;
1384 }
1385
1386 ST_FN char *trimback(char *a, char *e)
1387 {
1388 while (e > a && (unsigned char)e[-1] <= ' ')
1389 --e;
1390 *e = 0;;
1391 return a;
1392 }
1393
1394 ST_FN char *get_line(char *line, int size, FILE *fp)
1395 {
1396 if (NULL == fgets(line, size, fp))
1397 return NULL;
1398 trimback(line, strchr(line, 0));
1399 return trimfront(line);
1400 }
1401
1402 /* ------------------------------------------------------------- */
1403 PUB_FN int pe_load_def_file(TCCState *s1, int fd)
1404 {
1405 DLLReference *dllref;
1406 int state = 0, ret = -1;
1407 char line[400], dllname[80], *p;
1408 FILE *fp = fdopen(dup(fd), "rb");
1409
1410 if (NULL == fp)
1411 goto quit;
1412
1413 for (;;) {
1414 p = get_line(line, sizeof line, fp);
1415 if (NULL == p)
1416 break;
1417 if (0 == *p || ';' == *p)
1418 continue;
1419 switch (state) {
1420 case 0:
1421 if (0 != strnicmp(p, "LIBRARY", 7))
1422 goto quit;
1423 strcpy(dllname, trimfront(p+7));
1424 ++state;
1425 continue;
1426
1427 case 1:
1428 if (0 != stricmp(p, "EXPORTS"))
1429 goto quit;
1430 ++state;
1431 continue;
1432
1433 case 2:
1434 dllref = tcc_mallocz(sizeof(DLLReference) + strlen(dllname));
1435 strcpy(dllref->name, dllname);
1436 dynarray_add((void ***) &s1->loaded_dlls, &s1->nb_loaded_dlls, dllref);
1437 ++state;
1438
1439 default:
1440 add_elf_sym(s1->dynsymtab_section,
1441 s1->nb_loaded_dlls, 0,
1442 ELFW_ST_INFO(STB_GLOBAL, STT_FUNC), 0,
1443 text_section->sh_num, p);
1444 continue;
1445 }
1446 }
1447 ret = 0;
1448 quit:
1449 if (fp)
1450 fclose(fp);
1451 if (ret)
1452 error_noabort("unrecognized export definition file format");
1453 return ret;
1454 }
1455
1456 /* ------------------------------------------------------------- */
1457
1458 ST_FN void pe_add_runtime_ex(TCCState *s1, struct pe_info *pe)
1459 {
1460 const char *start_symbol;
1461 unsigned long addr = 0;
1462 int pe_type = 0;
1463
1464 if (find_elf_sym(symtab_section, "_WinMain@16"))
1465 pe_type = PE_GUI;
1466 else
1467 if (TCC_OUTPUT_DLL == s1->output_type) {
1468 pe_type = PE_DLL;
1469 /* need this for 'tccelf.c:relocate_section()' */
1470 s1->output_type = TCC_OUTPUT_EXE;
1471 }
1472
1473 start_symbol =
1474 TCC_OUTPUT_MEMORY == s1->output_type
1475 ? PE_GUI == pe_type ? "_runwinmain" : NULL
1476 : PE_DLL == pe_type ? "__dllstart@12"
1477 : PE_GUI == pe_type ? "_winstart" : "_start"
1478 ;
1479
1480 /* grab the startup code from libtcc1 */
1481 if (start_symbol)
1482 add_elf_sym(symtab_section,
1483 0, 0,
1484 ELFW_ST_INFO(STB_GLOBAL, STT_NOTYPE), 0,
1485 SHN_UNDEF, start_symbol);
1486
1487 if (0 == s1->nostdlib) {
1488 tcc_add_library(s1, "tcc1");
1489 #ifdef __CYGWIN__
1490 tcc_add_library(s1, "cygwin1");
1491 #else
1492 tcc_add_library(s1, "msvcrt");
1493 #endif
1494 tcc_add_library(s1, "kernel32");
1495 if (PE_DLL == pe_type || PE_GUI == pe_type) {
1496 tcc_add_library(s1, "user32");
1497 tcc_add_library(s1, "gdi32");
1498 }
1499 }
1500 pe->type = pe_type;
1501
1502 if (start_symbol) {
1503 addr = (unsigned long)tcc_get_symbol_err(s1, start_symbol);
1504 if (s1->output_type == TCC_OUTPUT_MEMORY && addr)
1505 /* for -run GUI's, put '_runwinmain' instead of 'main' */
1506 add_elf_sym(symtab_section,
1507 addr, 0,
1508 ELFW_ST_INFO(STB_GLOBAL, STT_NOTYPE), 0,
1509 text_section->sh_num, "main");
1510 }
1511 pe->start_addr = addr;
1512 }
1513
1514 PUB_FN int pe_output_file(TCCState * s1, const char *filename)
1515 {
1516 int ret;
1517 struct pe_info pe;
1518 int i;
1519
1520 memset(&pe, 0, sizeof pe);
1521 pe.filename = filename;
1522 pe.s1 = s1;
1523
1524 pe_add_runtime_ex(s1, &pe);
1525 relocate_common_syms(); /* assign bss adresses */
1526 tcc_add_linker_symbols(s1);
1527
1528 ret = pe_check_symbols(&pe);
1529 if (ret)
1530 return ret;
1531
1532 if (filename) {
1533 if (PE_DLL == pe.type) {
1534 pe.reloc = new_section(pe.s1, ".reloc", SHT_PROGBITS, 0);
1535 pe.imagebase = 0x10000000;
1536 } else {
1537 pe.imagebase = 0x00400000;
1538 }
1539 pe_assign_addresses(&pe);
1540 relocate_syms(s1, 0);
1541 for (i = 1; i < s1->nb_sections; ++i) {
1542 Section *s = s1->sections[i];
1543 if (s->reloc) {
1544 relocate_section(s1, s);
1545 pe_relocate_rva(&pe, s);
1546 }
1547 }
1548 if (s1->nb_errors)
1549 ret = 1;
1550 else
1551 ret = pe_write(&pe);
1552 tcc_free(pe.sec_info);
1553 } else {
1554 #ifndef TCC_IS_NATIVE
1555 error_noabort("-run supported only on native platform");
1556 #endif
1557 pe.type = PE_RUN;
1558 pe.thunk = data_section;
1559 pe_build_imports(&pe);
1560 }
1561
1562 #ifdef PE_PRINT_SECTIONS
1563 pe_print_sections(s1, "tcc.log");
1564 #endif
1565 return ret;
1566 }
1567
1568 /* ------------------------------------------------------------- */
1569 #endif /* def TCC_TARGET_PE */
1570 /* ------------------------------------------------------------- */
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