2 * TCCPE.C - PE file output for the Tiny C Compiler
4 * Copyright (c) 2005-2007 grischka
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.
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.
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
24 #define stricmp strcasecmp
25 #define strnicmp strncasecmp
33 // #define PE_PRINT_SECTIONS
35 #ifdef TCC_TARGET_X86_64
36 # define ADDR3264 ULONGLONG
38 # define ADDR3264 DWORD
41 #if defined _WIN32 && (defined _WIN64) == (defined TCC_TARGET_X86_64)
46 void dbg_printf (const char *fmt
, ...)
52 x
= vsprintf (buffer
, fmt
, arg
);
53 strcpy(buffer
+x
, "\n");
54 OutputDebugString(buffer
);
58 /* ----------------------------------------------------------- */
59 #ifndef IMAGE_NT_SIGNATURE
60 /* ----------------------------------------------------------- */
61 /* definitions below are from winnt.h */
63 typedef unsigned char BYTE
;
64 typedef unsigned short WORD
;
65 typedef unsigned int DWORD
;
66 typedef unsigned long long ULONGLONG
;
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
;
91 #define IMAGE_NT_SIGNATURE 0x00004550 /* PE00 */
92 #define SIZE_OF_NT_SIGNATURE 4
94 typedef struct _IMAGE_FILE_HEADER
{
96 WORD NumberOfSections
;
98 DWORD PointerToSymbolTable
;
99 DWORD NumberOfSymbols
;
100 WORD SizeOfOptionalHeader
;
101 WORD Characteristics
;
102 } IMAGE_FILE_HEADER
, *PIMAGE_FILE_HEADER
;
105 #define IMAGE_SIZEOF_FILE_HEADER 20
107 typedef struct _IMAGE_DATA_DIRECTORY
{
108 DWORD VirtualAddress
;
110 } IMAGE_DATA_DIRECTORY
, *PIMAGE_DATA_DIRECTORY
;
113 typedef struct _IMAGE_OPTIONAL_HEADER
{
114 /* Standard fields. */
116 BYTE MajorLinkerVersion
;
117 BYTE MinorLinkerVersion
;
119 DWORD SizeOfInitializedData
;
120 DWORD SizeOfUninitializedData
;
121 DWORD AddressOfEntryPoint
;
123 #ifndef TCC_TARGET_X86_64
126 /* NT additional fields. */
128 DWORD SectionAlignment
;
130 WORD MajorOperatingSystemVersion
;
131 WORD MinorOperatingSystemVersion
;
132 WORD MajorImageVersion
;
133 WORD MinorImageVersion
;
134 WORD MajorSubsystemVersion
;
135 WORD MinorSubsystemVersion
;
136 DWORD Win32VersionValue
;
141 WORD DllCharacteristics
;
142 ADDR3264 SizeOfStackReserve
;
143 ADDR3264 SizeOfStackCommit
;
144 ADDR3264 SizeOfHeapReserve
;
145 ADDR3264 SizeOfHeapCommit
;
147 DWORD NumberOfRvaAndSizes
;
148 IMAGE_DATA_DIRECTORY DataDirectory
[16];
149 } IMAGE_OPTIONAL_HEADER32
, IMAGE_OPTIONAL_HEADER64
, IMAGE_OPTIONAL_HEADER
;
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 */
168 /* Section header format. */
169 #define IMAGE_SIZEOF_SHORT_NAME 8
171 typedef struct _IMAGE_SECTION_HEADER
{
172 BYTE Name
[IMAGE_SIZEOF_SHORT_NAME
];
174 DWORD PhysicalAddress
;
177 DWORD VirtualAddress
;
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
;
187 #define IMAGE_SIZEOF_SECTION_HEADER 40
189 typedef struct _IMAGE_EXPORT_DIRECTORY
{
190 DWORD Characteristics
;
196 DWORD NumberOfFunctions
;
198 DWORD AddressOfFunctions
;
199 DWORD AddressOfNames
;
200 DWORD AddressOfNameOrdinals
;
201 } IMAGE_EXPORT_DIRECTORY
,*PIMAGE_EXPORT_DIRECTORY
;
203 typedef struct _IMAGE_IMPORT_DESCRIPTOR
{
205 DWORD Characteristics
;
206 DWORD OriginalFirstThunk
;
209 DWORD ForwarderChain
;
212 } IMAGE_IMPORT_DESCRIPTOR
;
214 typedef struct _IMAGE_BASE_RELOCATION
{
215 DWORD VirtualAddress
;
217 // WORD TypeOffset[1];
218 } IMAGE_BASE_RELOCATION
;
220 #define IMAGE_SIZEOF_BASE_RELOCATION 8
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
233 /* ----------------------------------------------------------- */
234 #endif /* ndef IMAGE_NT_SIGNATURE */
235 /* ----------------------------------------------------------- */
236 #pragma pack(push, 1)
240 IMAGE_DOS_HEADER doshdr
;
243 IMAGE_FILE_HEADER filehdr
;
244 #ifdef TCC_TARGET_X86_64
245 IMAGE_OPTIONAL_HEADER64 opthdr
;
248 IMAGE_OPTIONAL_HEADER32 opthdr
;
250 IMAGE_OPTIONAL_HEADER opthdr
;
255 struct pe_reloc_header
{
260 struct pe_rsrc_header
{
261 struct _IMAGE_FILE_HEADER filehdr
;
262 struct _IMAGE_SECTION_HEADER sectionhdr
;
265 struct pe_rsrc_reloc
{
273 /* ------------------------------------------------------------- */
274 /* internal temporary structures */
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
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" , */
312 struct section_info
{
320 IMAGE_SECTION_HEADER ish
;
323 struct import_symbol
{
329 struct pe_import_info
{
332 struct import_symbol
**symbols
;
339 const char *filename
;
353 struct section_info
*sec_info
;
355 struct pe_import_info
**imp_info
;
365 /* --------------------------------------------*/
367 static const char *pe_export_name(TCCState
*s1
, ElfW(Sym
) *sym
)
369 const char *name
= symtab_section
->link
->data
+ sym
->st_name
;
370 if (s1
->leading_underscore
&& name
[0] == '_' && !(sym
->st_other
& 2))
375 static int pe_find_import(TCCState
* s1
, ElfW(Sym
) *sym
)
379 int sym_index
= 0, n
= 0;
382 s
= pe_export_name(s1
, sym
);
385 if (sym
->st_other
& 2) {
386 /* try w/0 stdcall deco (windows API convention) */
388 if (!p
|| s
[0] != '_')
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);
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);
408 /*----------------------------------------------------------------------------*/
410 static int dynarray_assoc(void **pp
, int n
, int key
)
413 for (i
= 0; i
< n
; ++i
, ++pp
)
414 if (key
== **(int **) pp
)
420 ST_FN DWORD
umin(DWORD a
, DWORD b
)
422 return a
< b
? a
: b
;
426 static DWORD
umax(DWORD a
, DWORD b
)
428 return a
< b
? b
: a
;
431 static DWORD
pe_file_align(struct pe_info
*pe
, DWORD n
)
433 return (n
+ (pe
->file_align
- 1)) & ~(pe
->file_align
- 1);
436 static DWORD
pe_virtual_align(struct pe_info
*pe
, DWORD n
)
438 return (n
+ (pe
->section_align
- 1)) & ~(pe
->section_align
- 1);
441 static void pe_align_section(Section
*s
, int a
)
443 int i
= s
->data_offset
& (a
-1);
445 section_ptr_add(s
, a
- i
);
448 static void pe_set_datadir(struct pe_header
*hdr
, int dir
, DWORD addr
, DWORD size
)
450 hdr
->opthdr
.DataDirectory
[dir
].VirtualAddress
= addr
;
451 hdr
->opthdr
.DataDirectory
[dir
].Size
= size
;
454 static int pe_fwrite(void *data
, unsigned len
, FILE *fp
, DWORD
*psum
)
460 for (i
= len
; i
> 0; i
-= 2) {
461 sum
+= (i
>= 2) ? *p
++ : *(BYTE
*)p
;
462 sum
= (sum
+ (sum
>> 16)) & 0xFFFF;
466 return len
== fwrite(data
, 1, len
, fp
) ? 0 : -1;
469 static void pe_fpad(FILE *fp
, DWORD new_pos
)
471 DWORD pos
= ftell(fp
);
472 while (++pos
<= new_pos
)
476 /*----------------------------------------------------------------------------*/
477 static int pe_write(struct pe_info
*pe
)
479 static const struct pe_header pe_template
= {
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 */
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 */
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 */
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,
511 0x00004550, /* DWORD nt_sig = IMAGE_NT_SIGNATURE */
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; */
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
539 /* IMAGE_OPTIONAL_HEADER opthdr */
540 /* Standard fields. */
541 #ifdef TCC_TARGET_X86_64
542 0x020B, /*WORD Magic; */
544 0x010B, /*WORD Magic; */
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; */
556 /* NT additional fields. */
557 #if defined(TCC_TARGET_ARM)
558 0x00100000, /*DWORD ImageBase; */
560 0x00400000, /*DWORD ImageBase; */
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; */
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}}
588 struct pe_header pe_header
= pe_template
;
592 DWORD file_offset
, sum
;
593 struct section_info
*si
;
594 IMAGE_SECTION_HEADER
*psh
;
596 op
= fopen(pe
->filename
, "wb");
598 tcc_error_noabort("could not write '%s': %s", pe
->filename
, strerror(errno
));
602 pe
->sizeofheaders
= pe_file_align(pe
,
603 sizeof (struct pe_header
)
604 + pe
->sec_count
* sizeof (IMAGE_SECTION_HEADER
)
607 file_offset
= pe
->sizeofheaders
;
609 if (2 == pe
->s1
->verbose
)
610 printf("-------------------------------"
611 "\n virt file size section" "\n");
612 for (i
= 0; i
< pe
->sec_count
; ++i
) {
616 si
= pe
->sec_info
+ i
;
618 addr
= si
->sh_addr
- pe
->imagebase
;
622 if (2 == pe
->s1
->verbose
)
623 printf("%6x %6x %6x %s\n",
624 (unsigned)addr
, (unsigned)file_offset
, (unsigned)size
, sh_name
);
628 pe_header
.opthdr
.BaseOfCode
= addr
;
629 pe_header
.opthdr
.AddressOfEntryPoint
= addr
+ pe
->start_addr
;
633 #ifndef TCC_TARGET_X86_64
634 pe_header
.opthdr
.BaseOfData
= addr
;
642 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_BASERELOC
, addr
, size
);
646 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_RESOURCE
, addr
, size
);
650 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_EXCEPTION
, addr
, size
);
657 if (pe
->thunk
== pe
->s1
->sections
[si
->ord
]) {
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
);
665 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_EXPORT
,
666 pe
->exp_offs
+ addr
, pe
->exp_size
);
670 strcpy((char*)psh
->Name
, sh_name
);
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
);
679 psh
->PointerToRawData
= file_offset
;
680 file_offset
= pe_file_align(pe
, file_offset
+ si
->data_size
);
681 psh
->SizeOfRawData
= file_offset
- psh
->PointerToRawData
;
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;
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
;
707 pe_fwrite(si
->data
, si
->data_size
, op
, &sum
);
708 file_offset
= psh
->PointerToRawData
+ psh
->SizeOfRawData
;
709 pe_fpad(op
, file_offset
);
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
);
718 if (2 == pe
->s1
->verbose
)
719 printf("-------------------------------\n");
721 printf("<- %s (%u bytes)\n", pe
->filename
, (unsigned)file_offset
);
726 /*----------------------------------------------------------------------------*/
728 #if defined(TCC_TARGET_X86_64)
729 #define REL_TYPE_DIRECT R_X86_64_64
730 #define R_XXX_THUNKFIX R_X86_64_PC32
731 #define R_XXX_RELATIVE R_X86_64_RELATIVE
733 #elif defined(TCC_TARGET_I386)
734 #define REL_TYPE_DIRECT R_386_32
735 #define R_XXX_THUNKFIX R_386_32
736 #define R_XXX_RELATIVE R_386_RELATIVE
738 #elif defined(TCC_TARGET_ARM)
739 #define REL_TYPE_DIRECT R_ARM_ABS32
740 #define R_XXX_THUNKFIX R_ARM_ABS32
741 #define R_XXX_RELATIVE R_ARM_RELATIVE
744 /*----------------------------------------------------------------------------*/
746 static struct import_symbol
*pe_add_import(struct pe_info
*pe
, int sym_index
)
750 struct pe_import_info
*p
;
751 struct import_symbol
*s
;
754 isym
= (ElfW(Sym
) *)pe
->s1
->dynsymtab_section
->data
+ sym_index
;
755 dll_index
= isym
->st_size
;
757 i
= dynarray_assoc ((void**)pe
->imp_info
, pe
->imp_count
, dll_index
);
762 p
= tcc_mallocz(sizeof *p
);
763 p
->dll_index
= dll_index
;
764 dynarray_add((void***)&pe
->imp_info
, &pe
->imp_count
, p
);
767 i
= dynarray_assoc ((void**)p
->symbols
, p
->sym_count
, sym_index
);
769 return p
->symbols
[i
];
771 s
= tcc_mallocz(sizeof *s
);
772 dynarray_add((void***)&p
->symbols
, &p
->sym_count
, s
);
773 s
->sym_index
= sym_index
;
777 /*----------------------------------------------------------------------------*/
778 static void pe_build_imports(struct pe_info
*pe
)
780 int thk_ptr
, ent_ptr
, dll_ptr
, sym_cnt
, i
;
781 DWORD rva_base
= pe
->thunk
->sh_addr
- pe
->imagebase
;
782 int ndlls
= pe
->imp_count
;
784 for (sym_cnt
= i
= 0; i
< ndlls
; ++i
)
785 sym_cnt
+= pe
->imp_info
[i
]->sym_count
;
790 pe_align_section(pe
->thunk
, 16);
792 pe
->imp_offs
= dll_ptr
= pe
->thunk
->data_offset
;
793 pe
->imp_size
= (ndlls
+ 1) * sizeof(IMAGE_IMPORT_DESCRIPTOR
);
794 pe
->iat_offs
= dll_ptr
+ pe
->imp_size
;
795 pe
->iat_size
= (sym_cnt
+ ndlls
) * sizeof(ADDR3264
);
796 section_ptr_add(pe
->thunk
, pe
->imp_size
+ 2*pe
->iat_size
);
798 thk_ptr
= pe
->iat_offs
;
799 ent_ptr
= pe
->iat_offs
+ pe
->iat_size
;
801 for (i
= 0; i
< pe
->imp_count
; ++i
) {
802 IMAGE_IMPORT_DESCRIPTOR
*hdr
;
805 struct pe_import_info
*p
= pe
->imp_info
[i
];
807 DLLReference
*dllref
;
809 dllindex
= p
->dll_index
;
811 name
= (dllref
= pe
->s1
->loaded_dlls
[dllindex
-1])->name
;
813 name
= "", dllref
= NULL
;
815 /* put the dll name into the import header */
816 v
= put_elf_str(pe
->thunk
, name
);
817 hdr
= (IMAGE_IMPORT_DESCRIPTOR
*)(pe
->thunk
->data
+ dll_ptr
);
818 hdr
->FirstThunk
= thk_ptr
+ rva_base
;
819 hdr
->OriginalFirstThunk
= ent_ptr
+ rva_base
;
820 hdr
->Name
= v
+ rva_base
;
822 for (k
= 0, n
= p
->sym_count
; k
<= n
; ++k
) {
824 int iat_index
= p
->symbols
[k
]->iat_index
;
825 int sym_index
= p
->symbols
[k
]->sym_index
;
826 ElfW(Sym
) *imp_sym
= (ElfW(Sym
) *)pe
->s1
->dynsymtab_section
->data
+ sym_index
;
827 ElfW(Sym
) *org_sym
= (ElfW(Sym
) *)symtab_section
->data
+ iat_index
;
828 const char *name
= pe
->s1
->dynsymtab_section
->link
->data
+ imp_sym
->st_name
;
830 org_sym
->st_value
= thk_ptr
;
831 org_sym
->st_shndx
= pe
->thunk
->sh_num
;
832 v
= pe
->thunk
->data_offset
+ rva_base
;
833 section_ptr_add(pe
->thunk
, sizeof(WORD
)); /* hint, not used */
834 put_elf_str(pe
->thunk
, name
);
836 if (pe
->type
== PE_RUN
) {
837 v
= imp_sym
->st_value
;
839 if ( !dllref
->handle
)
840 dllref
->handle
= LoadLibrary(dllref
->name
);
841 v
= (ADDR3264
)GetProcAddress(dllref
->handle
, name
);
844 tcc_error_noabort("undefined symbol '%s'", name
);
848 v
= 0; /* last entry is zero */
850 *(ADDR3264
*)(pe
->thunk
->data
+thk_ptr
) =
851 *(ADDR3264
*)(pe
->thunk
->data
+ent_ptr
) = v
;
852 thk_ptr
+= sizeof (ADDR3264
);
853 ent_ptr
+= sizeof (ADDR3264
);
855 dll_ptr
+= sizeof(IMAGE_IMPORT_DESCRIPTOR
);
856 dynarray_reset(&p
->symbols
, &p
->sym_count
);
858 dynarray_reset(&pe
->imp_info
, &pe
->imp_count
);
861 /* ------------------------------------------------------------- */
869 static int sym_cmp(const void *va
, const void *vb
)
871 const char *ca
= (*(struct pe_sort_sym
**)va
)->name
;
872 const char *cb
= (*(struct pe_sort_sym
**)vb
)->name
;
873 return strcmp(ca
, cb
);
876 static void pe_build_exports(struct pe_info
*pe
)
879 int sym_index
, sym_end
;
880 DWORD rva_base
, func_o
, name_o
, ord_o
, str_o
;
881 IMAGE_EXPORT_DIRECTORY
*hdr
;
883 struct pe_sort_sym
**sorted
, *p
;
890 rva_base
= pe
->thunk
->sh_addr
- pe
->imagebase
;
891 sym_count
= 0, sorted
= NULL
, op
= NULL
;
893 sym_end
= symtab_section
->data_offset
/ sizeof(ElfW(Sym
));
894 for (sym_index
= 1; sym_index
< sym_end
; ++sym_index
) {
895 sym
= (ElfW(Sym
)*)symtab_section
->data
+ sym_index
;
896 name
= pe_export_name(pe
->s1
, sym
);
897 if ((sym
->st_other
& 1)
898 /* export only symbols from actually written sections */
899 && pe
->s1
->sections
[sym
->st_shndx
]->sh_addr
) {
900 p
= tcc_malloc(sizeof *p
);
901 p
->index
= sym_index
;
903 dynarray_add((void***)&sorted
, &sym_count
, p
);
906 if (sym
->st_other
& 1)
907 printf("export: %s\n", name
);
908 if (sym
->st_other
& 2)
909 printf("stdcall: %s\n", name
);
916 qsort (sorted
, sym_count
, sizeof *sorted
, sym_cmp
);
918 pe_align_section(pe
->thunk
, 16);
919 dllname
= tcc_basename(pe
->filename
);
921 pe
->exp_offs
= pe
->thunk
->data_offset
;
922 func_o
= pe
->exp_offs
+ sizeof(IMAGE_EXPORT_DIRECTORY
);
923 name_o
= func_o
+ sym_count
* sizeof (DWORD
);
924 ord_o
= name_o
+ sym_count
* sizeof (DWORD
);
925 str_o
= ord_o
+ sym_count
* sizeof(WORD
);
927 hdr
= section_ptr_add(pe
->thunk
, str_o
- pe
->exp_offs
);
928 hdr
->Characteristics
= 0;
930 hdr
->NumberOfFunctions
= sym_count
;
931 hdr
->NumberOfNames
= sym_count
;
932 hdr
->AddressOfFunctions
= func_o
+ rva_base
;
933 hdr
->AddressOfNames
= name_o
+ rva_base
;
934 hdr
->AddressOfNameOrdinals
= ord_o
+ rva_base
;
935 hdr
->Name
= str_o
+ rva_base
;
936 put_elf_str(pe
->thunk
, dllname
);
939 /* automatically write exports to <output-filename>.def */
940 strcpy(buf
, pe
->filename
);
941 strcpy(tcc_fileextension(buf
), ".def");
942 op
= fopen(buf
, "w");
944 tcc_error_noabort("could not create '%s': %s", buf
, strerror(errno
));
946 fprintf(op
, "LIBRARY %s\n\nEXPORTS\n", dllname
);
948 printf("<- %s (%d symbols)\n", buf
, sym_count
);
952 for (ord
= 0; ord
< sym_count
; ++ord
)
954 p
= sorted
[ord
], sym_index
= p
->index
, name
= p
->name
;
955 /* insert actual address later in pe_relocate_rva */
956 put_elf_reloc(symtab_section
, pe
->thunk
,
957 func_o
, R_XXX_RELATIVE
, sym_index
);
958 *(DWORD
*)(pe
->thunk
->data
+ name_o
)
959 = pe
->thunk
->data_offset
+ rva_base
;
960 *(WORD
*)(pe
->thunk
->data
+ ord_o
)
962 put_elf_str(pe
->thunk
, name
);
963 func_o
+= sizeof (DWORD
);
964 name_o
+= sizeof (DWORD
);
965 ord_o
+= sizeof (WORD
);
967 fprintf(op
, "%s\n", name
);
969 pe
->exp_size
= pe
->thunk
->data_offset
- pe
->exp_offs
;
970 dynarray_reset(&sorted
, &sym_count
);
975 /* ------------------------------------------------------------- */
976 static void pe_build_reloc (struct pe_info
*pe
)
978 DWORD offset
, block_ptr
, addr
;
980 ElfW_Rel
*rel
, *rel_end
;
981 Section
*s
= NULL
, *sr
;
983 offset
= addr
= block_ptr
= count
= i
= 0;
984 rel
= rel_end
= NULL
;
988 int type
= ELFW(R_TYPE
)(rel
->r_info
);
989 addr
= rel
->r_offset
+ s
->sh_addr
;
991 if (type
!= REL_TYPE_DIRECT
)
993 if (count
== 0) { /* new block */
994 block_ptr
= pe
->reloc
->data_offset
;
995 section_ptr_add(pe
->reloc
, sizeof(struct pe_reloc_header
));
996 offset
= addr
& 0xFFFFFFFF<<12;
998 if ((addr
-= offset
) < (1<<12)) { /* one block spans 4k addresses */
999 WORD
*wp
= section_ptr_add(pe
->reloc
, sizeof (WORD
));
1000 *wp
= addr
| IMAGE_REL_BASED_HIGHLOW
<<12;
1006 } else if (i
< pe
->sec_count
) {
1007 sr
= (s
= pe
->s1
->sections
[pe
->sec_info
[i
++].ord
])->reloc
;
1009 rel
= (ElfW_Rel
*)sr
->data
;
1010 rel_end
= (ElfW_Rel
*)(sr
->data
+ sr
->data_offset
);
1016 /* store the last block and ready for a new one */
1017 struct pe_reloc_header
*hdr
;
1018 if (count
& 1) /* align for DWORDS */
1019 section_ptr_add(pe
->reloc
, sizeof(WORD
)), ++count
;
1020 hdr
= (struct pe_reloc_header
*)(pe
->reloc
->data
+ block_ptr
);
1021 hdr
-> offset
= offset
- pe
->imagebase
;
1022 hdr
-> size
= count
* sizeof(WORD
) + sizeof(struct pe_reloc_header
);
1031 /* ------------------------------------------------------------- */
1032 static int pe_section_class(Section
*s
)
1038 flags
= s
->sh_flags
;
1040 if (flags
& SHF_ALLOC
) {
1041 if (type
== SHT_PROGBITS
) {
1042 if (flags
& SHF_EXECINSTR
)
1044 if (flags
& SHF_WRITE
)
1046 if (0 == strcmp(name
, ".rsrc"))
1048 if (0 == strcmp(name
, ".iedat"))
1050 if (0 == strcmp(name
, ".pdata"))
1053 } else if (type
== SHT_NOBITS
) {
1054 if (flags
& SHF_WRITE
)
1058 if (0 == strcmp(name
, ".reloc"))
1060 if (0 == strncmp(name
, ".stab", 5)) /* .stab and .stabstr */
1066 static int pe_assign_addresses (struct pe_info
*pe
)
1071 struct section_info
*si
;
1074 // pe->thunk = new_section(pe->s1, ".iedat", SHT_PROGBITS, SHF_ALLOC);
1076 section_order
= tcc_malloc(pe
->s1
->nb_sections
* sizeof (int));
1077 for (o
= k
= 0 ; k
< sec_last
; ++k
) {
1078 for (i
= 1; i
< pe
->s1
->nb_sections
; ++i
) {
1079 s
= pe
->s1
->sections
[i
];
1080 if (k
== pe_section_class(s
)) {
1081 // printf("%s %d\n", s->name, k);
1082 s
->sh_addr
= pe
->imagebase
;
1083 section_order
[o
++] = i
;
1088 pe
->sec_info
= tcc_mallocz(o
* sizeof (struct section_info
));
1089 addr
= pe
->imagebase
+ 1;
1091 for (i
= 0; i
< o
; ++i
)
1093 k
= section_order
[i
];
1094 s
= pe
->s1
->sections
[k
];
1095 c
= pe_section_class(s
);
1096 si
= &pe
->sec_info
[pe
->sec_count
];
1098 #ifdef PE_MERGE_DATA
1099 if (c
== sec_bss
&& pe
->sec_count
&& si
[-1].cls
== sec_data
) {
1100 /* append .bss to .data */
1101 s
->sh_addr
= addr
= ((addr
-1) | (s
->sh_addralign
-1)) + 1;
1102 addr
+= s
->data_offset
;
1103 si
[-1].sh_size
= addr
- si
[-1].sh_addr
;
1107 strcpy(si
->name
, s
->name
);
1110 si
->sh_addr
= s
->sh_addr
= addr
= pe_virtual_align(pe
, addr
);
1111 si
->sh_flags
= s
->sh_flags
;
1113 if (c
== sec_data
&& NULL
== pe
->thunk
)
1116 if (s
== pe
->thunk
) {
1117 pe_build_imports(pe
);
1118 pe_build_exports(pe
);
1122 pe_build_reloc (pe
);
1126 if (s
->sh_type
!= SHT_NOBITS
) {
1128 si
->data_size
= s
->data_offset
;
1131 addr
+= s
->data_offset
;
1132 si
->sh_size
= s
->data_offset
;
1135 // printf("%08x %05x %s\n", si->sh_addr, si->sh_size, si->name);
1139 for (i
= 1; i
< pe
->s1
->nb_sections
; ++i
) {
1140 Section
*s
= pe
->s1
->sections
[i
];
1141 int type
= s
->sh_type
;
1142 int flags
= s
->sh_flags
;
1143 printf("section %-16s %-10s %5x %s,%s,%s\n",
1145 type
== SHT_PROGBITS
? "progbits" :
1146 type
== SHT_NOBITS
? "nobits" :
1147 type
== SHT_SYMTAB
? "symtab" :
1148 type
== SHT_STRTAB
? "strtab" :
1149 type
== SHT_RELX
? "rel" : "???",
1151 flags
& SHF_ALLOC
? "alloc" : "",
1152 flags
& SHF_WRITE
? "write" : "",
1153 flags
& SHF_EXECINSTR
? "exec" : ""
1156 pe
->s1
->verbose
= 2;
1159 tcc_free(section_order
);
1163 /* ------------------------------------------------------------- */
1164 static void pe_relocate_rva (struct pe_info
*pe
, Section
*s
)
1166 Section
*sr
= s
->reloc
;
1167 ElfW_Rel
*rel
, *rel_end
;
1168 rel_end
= (ElfW_Rel
*)(sr
->data
+ sr
->data_offset
);
1169 for(rel
= (ElfW_Rel
*)sr
->data
; rel
< rel_end
; rel
++) {
1170 if (ELFW(R_TYPE
)(rel
->r_info
) == R_XXX_RELATIVE
) {
1171 int sym_index
= ELFW(R_SYM
)(rel
->r_info
);
1172 DWORD addr
= s
->sh_addr
;
1174 ElfW(Sym
) *sym
= (ElfW(Sym
) *)symtab_section
->data
+ sym_index
;
1175 addr
= sym
->st_value
;
1177 // printf("reloc rva %08x %08x %s\n", (DWORD)rel->r_offset, addr, s->name);
1178 *(DWORD
*)(s
->data
+ rel
->r_offset
) += addr
- pe
->imagebase
;
1183 /*----------------------------------------------------------------------------*/
1185 static int pe_isafunc(int sym_index
)
1187 Section
*sr
= text_section
->reloc
;
1188 ElfW_Rel
*rel
, *rel_end
;
1189 Elf32_Word info
= ELF32_R_INFO(sym_index
, R_386_PC32
);
1192 rel_end
= (ElfW_Rel
*)(sr
->data
+ sr
->data_offset
);
1193 for (rel
= (ElfW_Rel
*)sr
->data
; rel
< rel_end
; rel
++)
1194 if (rel
->r_info
== info
)
1199 /*----------------------------------------------------------------------------*/
1200 static int pe_check_symbols(struct pe_info
*pe
)
1203 int sym_index
, sym_end
;
1206 pe_align_section(text_section
, 8);
1208 sym_end
= symtab_section
->data_offset
/ sizeof(ElfW(Sym
));
1209 for (sym_index
= 1; sym_index
< sym_end
; ++sym_index
) {
1211 sym
= (ElfW(Sym
) *)symtab_section
->data
+ sym_index
;
1212 if (sym
->st_shndx
== SHN_UNDEF
) {
1214 const char *name
= symtab_section
->link
->data
+ sym
->st_name
;
1215 unsigned type
= ELFW(ST_TYPE
)(sym
->st_info
);
1216 int imp_sym
= pe_find_import(pe
->s1
, sym
);
1217 struct import_symbol
*is
;
1222 if (type
== STT_NOTYPE
) {
1223 /* symbols from assembler have no type, find out which */
1224 if (pe_isafunc(sym_index
))
1230 is
= pe_add_import(pe
, imp_sym
);
1232 if (type
== STT_FUNC
) {
1233 unsigned long offset
= is
->thk_offset
;
1235 /* got aliased symbol, like stricmp and _stricmp */
1241 offset
= text_section
->data_offset
;
1242 /* add the 'jmp IAT[x]' instruction */
1243 #ifdef TCC_TARGET_ARM
1244 p
= section_ptr_add(text_section
, 8+4); // room for code and address
1245 (*(DWORD
*)(p
)) = 0xE59FC000; // arm code ldr ip, [pc] ; PC+8+0 = 0001xxxx
1246 (*(DWORD
*)(p
+2)) = 0xE59CF000; // arm code ldr pc, [ip]
1248 p
= section_ptr_add(text_section
, 8);
1250 #ifdef TCC_TARGET_X86_64
1251 *(DWORD
*)(p
+1) = (DWORD
)-4;
1254 /* add a helper symbol, will be patched later in
1256 sprintf(buffer
, "IAT.%s", name
);
1257 is
->iat_index
= put_elf_sym(
1258 symtab_section
, 0, sizeof(DWORD
),
1259 ELFW(ST_INFO
)(STB_GLOBAL
, STT_OBJECT
),
1260 0, SHN_UNDEF
, buffer
);
1261 #ifdef TCC_TARGET_ARM
1262 put_elf_reloc(symtab_section
, text_section
,
1263 offset
+ 8, R_XXX_THUNKFIX
, is
->iat_index
); // offset to IAT position
1265 put_elf_reloc(symtab_section
, text_section
,
1266 offset
+ 2, R_XXX_THUNKFIX
, is
->iat_index
);
1268 is
->thk_offset
= offset
;
1271 /* tcc_realloc might have altered sym's address */
1272 sym
= (ElfW(Sym
) *)symtab_section
->data
+ sym_index
;
1274 /* patch the original symbol */
1275 sym
->st_value
= offset
;
1276 sym
->st_shndx
= text_section
->sh_num
;
1277 sym
->st_other
&= ~1; /* do not export */
1281 if (type
== STT_OBJECT
) { /* data, ptr to that should be */
1282 if (0 == is
->iat_index
) {
1283 /* original symbol will be patched later in pe_build_imports */
1284 is
->iat_index
= sym_index
;
1290 tcc_error_noabort("undefined symbol '%s'", name
);
1293 } else if (pe
->s1
->rdynamic
1294 && ELFW(ST_BIND
)(sym
->st_info
) != STB_LOCAL
) {
1295 /* if -rdynamic option, then export all non local symbols */
1302 /*----------------------------------------------------------------------------*/
1303 #ifdef PE_PRINT_SECTIONS
1304 static void pe_print_section(FILE * f
, Section
* s
)
1306 /* just if you'r curious */
1310 e
= s
->data
+ s
->data_offset
;
1313 fprintf(f
, "section \"%s\"", s
->name
);
1315 fprintf(f
, "\nlink \"%s\"", s
->link
->name
);
1317 fprintf(f
, "\nreloc \"%s\"", s
->reloc
->name
);
1318 fprintf(f
, "\nv_addr %08X", (unsigned)s
->sh_addr
);
1319 fprintf(f
, "\ncontents %08X", (unsigned)l
);
1322 if (s
->sh_type
== SHT_NOBITS
)
1328 if (s
->sh_type
== SHT_SYMTAB
)
1329 m
= sizeof(ElfW(Sym
));
1330 else if (s
->sh_type
== SHT_RELX
)
1331 m
= sizeof(ElfW_Rel
);
1335 fprintf(f
, "%-8s", "offset");
1336 for (i
= 0; i
< m
; ++i
)
1337 fprintf(f
, " %02x", i
);
1340 if (s
->sh_type
== SHT_SYMTAB
|| s
->sh_type
== SHT_RELX
) {
1341 const char *fields1
[] = {
1352 const char *fields2
[] = {
1361 if (s
->sh_type
== SHT_SYMTAB
)
1362 p
= fields1
, n
= 106;
1364 p
= fields2
, n
= 58;
1366 for (i
= 0; p
[i
]; ++i
)
1367 fprintf(f
, "%6s", p
[i
]);
1368 fprintf(f
, " symbol");
1372 for (i
= 0; i
< n
; ++i
)
1378 fprintf(f
, "%08X", i
);
1379 for (n
= 0; n
< m
; ++n
) {
1381 fprintf(f
, " %02X", p
[i
+ n
]);
1386 if (s
->sh_type
== SHT_SYMTAB
) {
1387 ElfW(Sym
) *sym
= (ElfW(Sym
) *) (p
+ i
);
1388 const char *name
= s
->link
->data
+ sym
->st_name
;
1389 fprintf(f
, " %04X %04X %04X %02X %02X %02X %04X \"%s\"",
1390 (unsigned)sym
->st_name
,
1391 (unsigned)sym
->st_value
,
1392 (unsigned)sym
->st_size
,
1393 (unsigned)ELFW(ST_BIND
)(sym
->st_info
),
1394 (unsigned)ELFW(ST_TYPE
)(sym
->st_info
),
1395 (unsigned)sym
->st_other
,
1396 (unsigned)sym
->st_shndx
,
1399 } else if (s
->sh_type
== SHT_RELX
) {
1400 ElfW_Rel
*rel
= (ElfW_Rel
*) (p
+ i
);
1402 (ElfW(Sym
) *) s
->link
->data
+ ELFW(R_SYM
)(rel
->r_info
);
1403 const char *name
= s
->link
->link
->data
+ sym
->st_name
;
1404 fprintf(f
, " %04X %02X %04X \"%s\"",
1405 (unsigned)rel
->r_offset
,
1406 (unsigned)ELFW(R_TYPE
)(rel
->r_info
),
1407 (unsigned)ELFW(R_SYM
)(rel
->r_info
),
1411 for (n
= 0; n
< m
; ++n
) {
1414 if (b
< 32 || b
>= 127)
1416 fprintf(f
, "%c", b
);
1426 static void pe_print_sections(TCCState
*s1
, const char *fname
)
1431 f
= fopen(fname
, "w");
1432 for (i
= 1; i
< s1
->nb_sections
; ++i
) {
1433 s
= s1
->sections
[i
];
1434 pe_print_section(f
, s
);
1436 pe_print_section(f
, s1
->dynsymtab_section
);
1441 /* ------------------------------------------------------------- */
1442 /* helper function for load/store to insert one more indirection */
1444 ST_FUNC SValue
*pe_getimport(SValue
*sv
, SValue
*v2
)
1450 if ((sv
->r
& (VT_VALMASK
|VT_SYM
)) != (VT_CONST
|VT_SYM
) || (sv
->r2
!= VT_CONST
))
1453 if ((sym
->type
.t
& (VT_EXTERN
|VT_STATIC
)) != VT_EXTERN
)
1456 put_extern_sym(sym
, NULL
, 0, 0);
1457 esym
= &((ElfW(Sym
) *)symtab_section
->data
)[sym
->c
];
1458 if (!(esym
->st_other
& 4))
1461 // printf("import %04x %04x %04x %s\n", sv->type.t, sym->type.t, sv->r, get_tok_str(sv->sym->v, NULL));
1463 memset(v2
, 0, sizeof *v2
);
1464 v2
->type
.t
= VT_PTR
;
1465 v2
->r
= VT_CONST
| VT_SYM
| VT_LVAL
;
1468 r2
= get_reg(RC_INT
);
1479 v2
->type
.t
= sv
->type
.t
;
1480 v2
->r
|= sv
->r
& VT_LVAL
;
1484 ST_FUNC
int pe_putimport(TCCState
*s1
, int dllindex
, const char *name
, const void *value
)
1487 s1
->dynsymtab_section
,
1489 dllindex
, /* st_size */
1490 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
),
1492 value
? SHN_ABS
: SHN_UNDEF
,
1497 static int add_dllref(TCCState
*s1
, const char *dllname
)
1499 DLLReference
*dllref
;
1501 for (i
= 0; i
< s1
->nb_loaded_dlls
; ++i
)
1502 if (0 == strcmp(s1
->loaded_dlls
[i
]->name
, dllname
))
1504 dllref
= tcc_mallocz(sizeof(DLLReference
) + strlen(dllname
));
1505 strcpy(dllref
->name
, dllname
);
1506 dynarray_add((void ***) &s1
->loaded_dlls
, &s1
->nb_loaded_dlls
, dllref
);
1507 return s1
->nb_loaded_dlls
;
1510 /* ------------------------------------------------------------- */
1512 static int read_mem(FILE *fp
, unsigned offset
, void *buffer
, unsigned len
)
1514 fseek(fp
, offset
, 0);
1515 return len
== fread(buffer
, 1, len
, fp
);
1518 /* -------------------------------------------------------------
1519 * This is for compiled windows resources in 'coff' format
1520 * as generated by 'windres.exe -O coff ...'.
1523 static int pe_load_res(TCCState
*s1
, FILE *fp
)
1525 struct pe_rsrc_header hdr
;
1526 Section
*rsrc_section
;
1531 if (!read_mem(fp
, 0, &hdr
, sizeof hdr
))
1534 if (hdr
.filehdr
.Machine
!= 0x014C
1535 || hdr
.filehdr
.NumberOfSections
!= 1
1536 || strcmp(hdr
.sectionhdr
.Name
, ".rsrc") != 0)
1539 rsrc_section
= new_section(s1
, ".rsrc", SHT_PROGBITS
, SHF_ALLOC
);
1540 ptr
= section_ptr_add(rsrc_section
, hdr
.sectionhdr
.SizeOfRawData
);
1541 offs
= hdr
.sectionhdr
.PointerToRawData
;
1542 if (!read_mem(fp
, offs
, ptr
, hdr
.sectionhdr
.SizeOfRawData
))
1544 offs
= hdr
.sectionhdr
.PointerToRelocations
;
1545 for (i
= 0; i
< hdr
.sectionhdr
.NumberOfRelocations
; ++i
)
1547 struct pe_rsrc_reloc rel
;
1548 if (!read_mem(fp
, offs
, &rel
, sizeof rel
))
1550 // printf("rsrc_reloc: %x %x %x\n", rel.offset, rel.size, rel.type);
1551 if (rel
.type
!= 7) /* DIR32NB */
1553 put_elf_reloc(symtab_section
, rsrc_section
,
1554 rel
.offset
, R_XXX_RELATIVE
, 0);
1562 /* ------------------------------------------------------------- */
1563 static char *trimfront(char *p
)
1565 while (*p
&& (unsigned char)*p
<= ' ')
1570 static char *trimback(char *a
, char *e
)
1572 while (e
> a
&& (unsigned char)e
[-1] <= ' ')
1578 static char *get_line(char *line
, int size
, FILE *fp
)
1580 if (NULL
== fgets(line
, size
, fp
))
1582 trimback(line
, strchr(line
, 0));
1583 return trimfront(line
);
1586 /* ------------------------------------------------------------- */
1587 static int pe_load_def(TCCState
*s1
, FILE *fp
)
1589 int state
= 0, ret
= -1, dllindex
= 0;
1590 char line
[400], dllname
[80], *p
;
1593 p
= get_line(line
, sizeof line
, fp
);
1596 if (0 == *p
|| ';' == *p
)
1600 if (0 != strnicmp(p
, "LIBRARY", 7))
1602 strcpy(dllname
, trimfront(p
+7));
1607 if (0 != stricmp(p
, "EXPORTS"))
1613 dllindex
= add_dllref(s1
, dllname
);
1617 pe_putimport(s1
, dllindex
, p
, NULL
);
1626 /* ------------------------------------------------------------- */
1627 #define TINY_IMPDEF_GET_EXPORT_NAMES_ONLY
1628 #include "win32/tools/tiny_impdef.c"
1630 static int pe_load_dll(TCCState
*s1
, const char *dllname
, FILE *fp
)
1634 p
= get_export_names(fp
);
1637 index
= add_dllref(s1
, dllname
);
1638 for (q
= p
; *q
; q
+= 1 + strlen(q
))
1639 pe_putimport(s1
, index
, q
, NULL
);
1644 /* ------------------------------------------------------------- */
1645 ST_FUNC
int pe_load_file(struct TCCState
*s1
, const char *filename
, int fd
)
1647 FILE *fp
= fdopen(dup(fd
), "rb");
1651 if (0 == strcmp(tcc_fileextension(filename
), ".def"))
1652 ret
= pe_load_def(s1
, fp
);
1653 else if (pe_load_res(s1
, fp
) == 0)
1655 else if (read_mem(fp
, 0, buf
, sizeof buf
) && 0 == strncmp(buf
, "MZ", 2))
1656 ret
= pe_load_dll(s1
, tcc_basename(filename
), fp
);
1662 /* ------------------------------------------------------------- */
1663 #ifdef TCC_TARGET_X86_64
1664 static unsigned pe_add_uwwind_info(TCCState
*s1
)
1666 if (NULL
== s1
->uw_pdata
) {
1667 s1
->uw_pdata
= find_section(tcc_state
, ".pdata");
1668 s1
->uw_pdata
->sh_addralign
= 4;
1669 s1
->uw_sym
= put_elf_sym(symtab_section
, 0, 0, 0, 0, text_section
->sh_num
, NULL
);
1672 if (0 == s1
->uw_offs
) {
1673 /* As our functions all have the same stackframe, we use one entry for all */
1674 static const unsigned char uw_info
[] = {
1675 0x01, // UBYTE: 3 Version , UBYTE: 5 Flags
1676 0x04, // UBYTE Size of prolog
1677 0x02, // UBYTE Count of unwind codes
1678 0x05, // UBYTE: 4 Frame Register (rbp), UBYTE: 4 Frame Register offset (scaled)
1679 // USHORT * n Unwind codes array
1680 // 0x0b, 0x01, 0xff, 0xff, // stack size
1681 0x04, 0x03, // set frame ptr (mov rsp -> rbp)
1682 0x01, 0x50 // push reg (rbp)
1685 Section
*s
= text_section
;
1688 section_ptr_add(s
, -s
->data_offset
& 3); /* align */
1689 s1
->uw_offs
= s
->data_offset
;
1690 p
= section_ptr_add(s
, sizeof uw_info
);
1691 memcpy(p
, uw_info
, sizeof uw_info
);
1697 ST_FUNC
void pe_add_unwind_data(unsigned start
, unsigned end
, unsigned stack
)
1699 TCCState
*s1
= tcc_state
;
1702 struct /* _RUNTIME_FUNCTION */ {
1708 d
= pe_add_uwwind_info(s1
);
1710 o
= pd
->data_offset
;
1711 p
= section_ptr_add(pd
, sizeof *p
);
1713 /* record this function */
1714 p
->BeginAddress
= start
;
1715 p
->EndAddress
= end
;
1718 /* put relocations on it */
1719 for (n
= o
+ sizeof *p
; o
< n
; o
+= sizeof p
->BeginAddress
)
1720 put_elf_reloc(symtab_section
, pd
, o
, R_X86_64_RELATIVE
, s1
->uw_sym
);
1723 /* ------------------------------------------------------------- */
1724 #ifdef TCC_TARGET_X86_64
1725 #define PE_STDSYM(n,s) n
1727 #define PE_STDSYM(n,s) "_" n s
1730 static void pe_add_runtime_ex(TCCState
*s1
, struct pe_info
*pe
)
1732 const char *start_symbol
;
1733 unsigned long addr
= 0;
1736 if (find_elf_sym(symtab_section
, PE_STDSYM("WinMain","@16")))
1739 if (TCC_OUTPUT_DLL
== s1
->output_type
) {
1741 /* need this for 'tccelf.c:relocate_section()' */
1742 s1
->output_type
= TCC_OUTPUT_EXE
;
1748 TCC_OUTPUT_MEMORY
== s1
->output_type
1749 ? PE_GUI
== pe_type
? "__runwinmain" : "_main"
1750 : PE_DLL
== pe_type
? PE_STDSYM("__dllstart","@12")
1751 : PE_GUI
== pe_type
? "__winstart" : "__start"
1754 if (!s1
->leading_underscore
|| strchr(start_symbol
, '@')) {
1756 if (start_symbol
[0] != '_')
1757 start_symbol
= NULL
;
1760 /* grab the startup code from libtcc1 */
1762 add_elf_sym(symtab_section
,
1764 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1765 SHN_UNDEF
, start_symbol
);
1767 if (0 == s1
->nostdlib
) {
1768 static const char *libs
[] = {
1769 "tcc1", "msvcrt", "kernel32", "", "user32", "gdi32", NULL
1771 const char **pp
, *p
;
1772 for (pp
= libs
; 0 != (p
= *pp
); ++pp
) {
1774 if (PE_DLL
!= pe_type
&& PE_GUI
!= pe_type
)
1776 } else if (tcc_add_library(s1
, p
) < 0)
1777 tcc_error_noabort("cannot find library: %s", p
);
1781 if (TCC_OUTPUT_MEMORY
== s1
->output_type
)
1785 addr
= (uplong
)tcc_get_symbol_err(s1
, start_symbol
);
1786 if (PE_RUN
== pe_type
&& addr
)
1787 /* for -run GUI's, put '_runwinmain' instead of 'main' */
1788 add_elf_sym(symtab_section
,
1790 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
), 0,
1791 text_section
->sh_num
, "main");
1795 pe
->start_addr
= addr
;
1798 ST_FUNC
int pe_output_file(TCCState
* s1
, const char *filename
)
1804 memset(&pe
, 0, sizeof pe
);
1805 pe
.filename
= filename
;
1809 pe_add_runtime_ex(s1
, &pe
);
1810 relocate_common_syms(); /* assign bss adresses */
1811 tcc_add_linker_symbols(s1
);
1813 ret
= pe_check_symbols(&pe
);
1816 else if (filename
) {
1817 if (PE_DLL
== pe
.type
) {
1818 pe
.reloc
= new_section(pe
.s1
, ".reloc", SHT_PROGBITS
, 0);
1819 /* XXX: check if is correct for arm-pe target */
1820 pe
.imagebase
= 0x10000000;
1822 #if defined(TCC_TARGET_ARM)
1823 pe
.imagebase
= 0x00010000;
1825 pe
.imagebase
= 0x00400000;
1829 /* if no subsystem specified, we use "console" subsystem by default */
1830 if (s1
->pe_subsystem
!= 0)
1831 pe
.subsystem
= s1
->pe_subsystem
;
1833 #if defined(TCC_TARGET_ARM)
1838 /* set default file/section alignment */
1839 if (pe
.subsystem
== 1) {
1840 pe
.section_align
= 0x20;
1841 pe
.file_align
= 0x20;
1843 pe
.section_align
= 0x1000;
1844 pe
.file_align
= 0x200;
1847 if (s1
->section_align
!= 0)
1848 pe
.section_align
= s1
->section_align
;
1849 if (s1
->pe_file_align
!= 0)
1850 pe
.file_align
= s1
->pe_file_align
;
1852 if ((pe
.subsystem
>= 10) && (pe
.subsystem
<= 12))
1855 if (s1
->has_text_addr
)
1856 pe
.imagebase
= s1
->text_addr
;
1858 pe_assign_addresses(&pe
);
1859 relocate_syms(s1
, 0);
1860 for (i
= 1; i
< s1
->nb_sections
; ++i
) {
1861 Section
*s
= s1
->sections
[i
];
1863 relocate_section(s1
, s
);
1864 pe_relocate_rva(&pe
, s
);
1870 ret
= pe_write(&pe
);
1871 tcc_free(pe
.sec_info
);
1873 #ifndef TCC_IS_NATIVE
1874 tcc_error_noabort("-run supported only on native platform");
1876 pe
.thunk
= data_section
;
1877 pe_build_imports(&pe
);
1880 #ifdef PE_PRINT_SECTIONS
1881 pe_print_sections(s1
, "tcc.log");
1886 /* ------------------------------------------------------------- */