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
23 #define PE_MERGE_DATA 1
24 #define PE_PRINT_SECTIONS 0
27 #define stricmp strcasecmp
28 #define strnicmp strncasecmp
29 #include <sys/stat.h> /* chmod() */
32 #ifdef TCC_TARGET_X86_64
33 # define ADDR3264 ULONGLONG
34 # define PE_IMAGE_REL IMAGE_REL_BASED_DIR64
35 # define REL_TYPE_DIRECT R_X86_64_64
36 # define R_XXX_THUNKFIX R_X86_64_PC32
37 # define R_XXX_RELATIVE R_X86_64_RELATIVE
38 # define R_XXX_FUNCCALL R_X86_64_PC32
39 # define IMAGE_FILE_MACHINE 0x8664
40 # define RSRC_RELTYPE 3
42 #elif defined TCC_TARGET_ARM
43 # define ADDR3264 DWORD
44 # define PE_IMAGE_REL IMAGE_REL_BASED_HIGHLOW
45 # define REL_TYPE_DIRECT R_ARM_ABS32
46 # define R_XXX_THUNKFIX R_ARM_ABS32
47 # define R_XXX_RELATIVE R_ARM_RELATIVE
48 # define R_XXX_FUNCCALL R_ARM_PC24
49 # define R_XXX_FUNCCALL2 R_ARM_ABS32
50 # define IMAGE_FILE_MACHINE 0x01C0
51 # define RSRC_RELTYPE 7 /* ??? (not tested) */
53 #elif defined TCC_TARGET_I386
54 # define ADDR3264 DWORD
55 # define PE_IMAGE_REL IMAGE_REL_BASED_HIGHLOW
56 # define REL_TYPE_DIRECT R_386_32
57 # define R_XXX_THUNKFIX R_386_32
58 # define R_XXX_RELATIVE R_386_RELATIVE
59 # define R_XXX_FUNCCALL R_386_PC32
60 # define IMAGE_FILE_MACHINE 0x014C
61 # define RSRC_RELTYPE 7 /* DIR32NB */
65 #ifndef IMAGE_NT_SIGNATURE
66 /* ----------------------------------------------------------- */
67 /* definitions below are from winnt.h */
69 typedef unsigned char BYTE
;
70 typedef unsigned short WORD
;
71 typedef unsigned int DWORD
;
72 typedef unsigned long long ULONGLONG
;
75 typedef struct _IMAGE_DOS_HEADER
{ /* DOS .EXE header */
76 WORD e_magic
; /* Magic number */
77 WORD e_cblp
; /* Bytes on last page of file */
78 WORD e_cp
; /* Pages in file */
79 WORD e_crlc
; /* Relocations */
80 WORD e_cparhdr
; /* Size of header in paragraphs */
81 WORD e_minalloc
; /* Minimum extra paragraphs needed */
82 WORD e_maxalloc
; /* Maximum extra paragraphs needed */
83 WORD e_ss
; /* Initial (relative) SS value */
84 WORD e_sp
; /* Initial SP value */
85 WORD e_csum
; /* Checksum */
86 WORD e_ip
; /* Initial IP value */
87 WORD e_cs
; /* Initial (relative) CS value */
88 WORD e_lfarlc
; /* File address of relocation table */
89 WORD e_ovno
; /* Overlay number */
90 WORD e_res
[4]; /* Reserved words */
91 WORD e_oemid
; /* OEM identifier (for e_oeminfo) */
92 WORD e_oeminfo
; /* OEM information; e_oemid specific */
93 WORD e_res2
[10]; /* Reserved words */
94 DWORD e_lfanew
; /* File address of new exe header */
95 } IMAGE_DOS_HEADER
, *PIMAGE_DOS_HEADER
;
97 #define IMAGE_NT_SIGNATURE 0x00004550 /* PE00 */
98 #define SIZE_OF_NT_SIGNATURE 4
100 typedef struct _IMAGE_FILE_HEADER
{
102 WORD NumberOfSections
;
104 DWORD PointerToSymbolTable
;
105 DWORD NumberOfSymbols
;
106 WORD SizeOfOptionalHeader
;
107 WORD Characteristics
;
108 } IMAGE_FILE_HEADER
, *PIMAGE_FILE_HEADER
;
111 #define IMAGE_SIZEOF_FILE_HEADER 20
113 typedef struct _IMAGE_DATA_DIRECTORY
{
114 DWORD VirtualAddress
;
116 } IMAGE_DATA_DIRECTORY
, *PIMAGE_DATA_DIRECTORY
;
119 typedef struct _IMAGE_OPTIONAL_HEADER
{
120 /* Standard fields. */
122 BYTE MajorLinkerVersion
;
123 BYTE MinorLinkerVersion
;
125 DWORD SizeOfInitializedData
;
126 DWORD SizeOfUninitializedData
;
127 DWORD AddressOfEntryPoint
;
129 #ifndef TCC_TARGET_X86_64
132 /* NT additional fields. */
134 DWORD SectionAlignment
;
136 WORD MajorOperatingSystemVersion
;
137 WORD MinorOperatingSystemVersion
;
138 WORD MajorImageVersion
;
139 WORD MinorImageVersion
;
140 WORD MajorSubsystemVersion
;
141 WORD MinorSubsystemVersion
;
142 DWORD Win32VersionValue
;
147 WORD DllCharacteristics
;
148 ADDR3264 SizeOfStackReserve
;
149 ADDR3264 SizeOfStackCommit
;
150 ADDR3264 SizeOfHeapReserve
;
151 ADDR3264 SizeOfHeapCommit
;
153 DWORD NumberOfRvaAndSizes
;
154 IMAGE_DATA_DIRECTORY DataDirectory
[16];
155 } IMAGE_OPTIONAL_HEADER32
, IMAGE_OPTIONAL_HEADER64
, IMAGE_OPTIONAL_HEADER
;
157 #define IMAGE_DIRECTORY_ENTRY_EXPORT 0 /* Export Directory */
158 #define IMAGE_DIRECTORY_ENTRY_IMPORT 1 /* Import Directory */
159 #define IMAGE_DIRECTORY_ENTRY_RESOURCE 2 /* Resource Directory */
160 #define IMAGE_DIRECTORY_ENTRY_EXCEPTION 3 /* Exception Directory */
161 #define IMAGE_DIRECTORY_ENTRY_SECURITY 4 /* Security Directory */
162 #define IMAGE_DIRECTORY_ENTRY_BASERELOC 5 /* Base Relocation Table */
163 #define IMAGE_DIRECTORY_ENTRY_DEBUG 6 /* Debug Directory */
164 /* IMAGE_DIRECTORY_ENTRY_COPYRIGHT 7 (X86 usage) */
165 #define IMAGE_DIRECTORY_ENTRY_ARCHITECTURE 7 /* Architecture Specific Data */
166 #define IMAGE_DIRECTORY_ENTRY_GLOBALPTR 8 /* RVA of GP */
167 #define IMAGE_DIRECTORY_ENTRY_TLS 9 /* TLS Directory */
168 #define IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG 10 /* Load Configuration Directory */
169 #define IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT 11 /* Bound Import Directory in headers */
170 #define IMAGE_DIRECTORY_ENTRY_IAT 12 /* Import Address Table */
171 #define IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT 13 /* Delay Load Import Descriptors */
172 #define IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR 14 /* COM Runtime descriptor */
174 /* Section header format. */
175 #define IMAGE_SIZEOF_SHORT_NAME 8
177 typedef struct _IMAGE_SECTION_HEADER
{
178 BYTE Name
[IMAGE_SIZEOF_SHORT_NAME
];
180 DWORD PhysicalAddress
;
183 DWORD VirtualAddress
;
185 DWORD PointerToRawData
;
186 DWORD PointerToRelocations
;
187 DWORD PointerToLinenumbers
;
188 WORD NumberOfRelocations
;
189 WORD NumberOfLinenumbers
;
190 DWORD Characteristics
;
191 } IMAGE_SECTION_HEADER
, *PIMAGE_SECTION_HEADER
;
193 #define IMAGE_SIZEOF_SECTION_HEADER 40
195 typedef struct _IMAGE_EXPORT_DIRECTORY
{
196 DWORD Characteristics
;
202 DWORD NumberOfFunctions
;
204 DWORD AddressOfFunctions
;
205 DWORD AddressOfNames
;
206 DWORD AddressOfNameOrdinals
;
207 } IMAGE_EXPORT_DIRECTORY
,*PIMAGE_EXPORT_DIRECTORY
;
209 typedef struct _IMAGE_IMPORT_DESCRIPTOR
{
211 DWORD Characteristics
;
212 DWORD OriginalFirstThunk
;
215 DWORD ForwarderChain
;
218 } IMAGE_IMPORT_DESCRIPTOR
;
220 typedef struct _IMAGE_BASE_RELOCATION
{
221 DWORD VirtualAddress
;
223 // WORD TypeOffset[1];
224 } IMAGE_BASE_RELOCATION
;
226 #define IMAGE_SIZEOF_BASE_RELOCATION 8
228 #define IMAGE_REL_BASED_ABSOLUTE 0
229 #define IMAGE_REL_BASED_HIGH 1
230 #define IMAGE_REL_BASED_LOW 2
231 #define IMAGE_REL_BASED_HIGHLOW 3
232 #define IMAGE_REL_BASED_HIGHADJ 4
233 #define IMAGE_REL_BASED_MIPS_JMPADDR 5
234 #define IMAGE_REL_BASED_SECTION 6
235 #define IMAGE_REL_BASED_REL32 7
236 #define IMAGE_REL_BASED_DIR64 10
238 #define IMAGE_SCN_CNT_CODE 0x00000020
239 #define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040
240 #define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080
241 #define IMAGE_SCN_MEM_DISCARDABLE 0x02000000
242 #define IMAGE_SCN_MEM_SHARED 0x10000000
243 #define IMAGE_SCN_MEM_EXECUTE 0x20000000
244 #define IMAGE_SCN_MEM_READ 0x40000000
245 #define IMAGE_SCN_MEM_WRITE 0x80000000
249 /* ----------------------------------------------------------- */
250 #endif /* ndef IMAGE_NT_SIGNATURE */
251 /* ----------------------------------------------------------- */
253 #ifndef IMAGE_REL_BASED_DIR64
254 # define IMAGE_REL_BASED_DIR64 10
257 #pragma pack(push, 1)
260 IMAGE_DOS_HEADER doshdr
;
263 IMAGE_FILE_HEADER filehdr
;
264 #ifdef TCC_TARGET_X86_64
265 IMAGE_OPTIONAL_HEADER64 opthdr
;
268 IMAGE_OPTIONAL_HEADER32 opthdr
;
270 IMAGE_OPTIONAL_HEADER opthdr
;
275 struct pe_reloc_header
{
280 struct pe_rsrc_header
{
281 struct _IMAGE_FILE_HEADER filehdr
;
282 struct _IMAGE_SECTION_HEADER sectionhdr
;
285 struct pe_rsrc_reloc
{
292 /* ------------------------------------------------------------- */
293 /* internal temporary structures */
311 static const DWORD pe_sec_flags
[] = {
312 0x60000020, /* ".text" , */
313 0xC0000040, /* ".data" , */
314 0xC0000080, /* ".bss" , */
315 0x40000040, /* ".idata" , */
316 0x40000040, /* ".pdata" , */
317 0xE0000060, /* < other > , */
318 0x40000040, /* ".rsrc" , */
319 0x42000802, /* ".stab" , */
320 0x42000040, /* ".reloc" , */
324 struct section_info
{
332 IMAGE_SECTION_HEADER ish
;
335 struct import_symbol
{
341 struct pe_import_info
{
344 struct import_symbol
**symbols
;
351 const char *filename
;
355 const char *start_symbol
;
366 struct section_info
**sec_info
;
368 struct pe_import_info
**imp_info
;
378 /* --------------------------------------------*/
380 static const char *pe_export_name(TCCState
*s1
, ElfW(Sym
) *sym
)
382 const char *name
= (char*)symtab_section
->link
->data
+ sym
->st_name
;
383 if (s1
->leading_underscore
&& name
[0] == '_' && !(sym
->st_other
& ST_PE_STDCALL
))
388 static int pe_find_import(TCCState
* s1
, ElfW(Sym
) *sym
)
392 int sym_index
= 0, n
= 0;
396 s
= pe_export_name(s1
, sym
);
400 if (sym
->st_other
& ST_PE_STDCALL
) {
401 /* try w/0 stdcall deco (windows API convention) */
403 if (!p
|| s
[0] != '_')
405 strcpy(buffer
, s
+1)[p
-s
-1] = 0;
406 } else if (s
[0] != '_') { /* try non-ansi function */
407 buffer
[0] = '_', strcpy(buffer
+ 1, s
);
408 } else if (0 == memcmp(s
, "__imp_", 6)) { /* mingw 2.0 */
409 strcpy(buffer
, s
+ 6), a
= 1;
410 } else if (0 == memcmp(s
, "_imp__", 6)) { /* mingw 3.7 */
411 strcpy(buffer
, s
+ 6), a
= 1;
417 sym_index
= find_elf_sym(s1
->dynsymtab_section
, s
);
418 // printf("find (%d) %d %s\n", n, sym_index, s);
420 && ELFW(ST_TYPE
)(sym
->st_info
) == STT_OBJECT
421 && 0 == (sym
->st_other
& ST_PE_IMPORT
)
423 ) err
= -1, sym_index
= 0;
424 } while (0 == sym_index
&& ++n
< 2);
425 return n
== 2 ? err
: sym_index
;
428 /*----------------------------------------------------------------------------*/
430 static int dynarray_assoc(void **pp
, int n
, int key
)
433 for (i
= 0; i
< n
; ++i
, ++pp
)
434 if (key
== **(int **) pp
)
439 static DWORD
umin(DWORD a
, DWORD b
)
441 return a
< b
? a
: b
;
444 static DWORD
umax(DWORD a
, DWORD b
)
446 return a
< b
? b
: a
;
449 static DWORD
pe_file_align(struct pe_info
*pe
, DWORD n
)
451 return (n
+ (pe
->file_align
- 1)) & ~(pe
->file_align
- 1);
454 static DWORD
pe_virtual_align(struct pe_info
*pe
, DWORD n
)
456 return (n
+ (pe
->section_align
- 1)) & ~(pe
->section_align
- 1);
459 static void pe_align_section(Section
*s
, int a
)
461 int i
= s
->data_offset
& (a
-1);
463 section_ptr_add(s
, a
- i
);
466 static void pe_set_datadir(struct pe_header
*hdr
, int dir
, DWORD addr
, DWORD size
)
468 hdr
->opthdr
.DataDirectory
[dir
].VirtualAddress
= addr
;
469 hdr
->opthdr
.DataDirectory
[dir
].Size
= size
;
478 static int pe_fwrite(void *data
, int len
, struct pe_file
*pf
)
483 pf
->pos
+= (ret
= fwrite(data
, 1, len
, pf
->op
));
485 for (i
= len
; i
> 0; i
-= 2) {
486 sum
+= (i
>= 2) ? *p
++ : *(BYTE
*)p
;
487 sum
= (sum
+ (sum
>> 16)) & 0xFFFF;
490 return len
== ret
? 0 : -1;
493 static void pe_fpad(struct pe_file
*pf
, DWORD new_pos
)
496 int n
, diff
= new_pos
- pf
->pos
;
497 memset(buf
, 0, sizeof buf
);
499 diff
-= n
= umin(diff
, sizeof buf
);
500 fwrite(buf
, n
, 1, pf
->op
);
505 /*----------------------------------------------------------------------------*/
506 static int pe_write(struct pe_info
*pe
)
508 static const struct pe_header pe_template
= {
510 /* IMAGE_DOS_HEADER doshdr */
511 0x5A4D, /*WORD e_magic; Magic number */
512 0x0090, /*WORD e_cblp; Bytes on last page of file */
513 0x0003, /*WORD e_cp; Pages in file */
514 0x0000, /*WORD e_crlc; Relocations */
516 0x0004, /*WORD e_cparhdr; Size of header in paragraphs */
517 0x0000, /*WORD e_minalloc; Minimum extra paragraphs needed */
518 0xFFFF, /*WORD e_maxalloc; Maximum extra paragraphs needed */
519 0x0000, /*WORD e_ss; Initial (relative) SS value */
521 0x00B8, /*WORD e_sp; Initial SP value */
522 0x0000, /*WORD e_csum; Checksum */
523 0x0000, /*WORD e_ip; Initial IP value */
524 0x0000, /*WORD e_cs; Initial (relative) CS value */
525 0x0040, /*WORD e_lfarlc; File address of relocation table */
526 0x0000, /*WORD e_ovno; Overlay number */
527 {0,0,0,0}, /*WORD e_res[4]; Reserved words */
528 0x0000, /*WORD e_oemid; OEM identifier (for e_oeminfo) */
529 0x0000, /*WORD e_oeminfo; OEM information; e_oemid specific */
530 {0,0,0,0,0,0,0,0,0,0}, /*WORD e_res2[10]; Reserved words */
531 0x00000080 /*DWORD e_lfanew; File address of new exe header */
533 /* BYTE dosstub[0x40] */
534 /* 14 code bytes + "This program cannot be run in DOS mode.\r\r\n$" + 6 * 0x00 */
535 0x0e,0x1f,0xba,0x0e,0x00,0xb4,0x09,0xcd,0x21,0xb8,0x01,0x4c,0xcd,0x21,0x54,0x68,
536 0x69,0x73,0x20,0x70,0x72,0x6f,0x67,0x72,0x61,0x6d,0x20,0x63,0x61,0x6e,0x6e,0x6f,
537 0x74,0x20,0x62,0x65,0x20,0x72,0x75,0x6e,0x20,0x69,0x6e,0x20,0x44,0x4f,0x53,0x20,
538 0x6d,0x6f,0x64,0x65,0x2e,0x0d,0x0d,0x0a,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
540 0x00004550, /* DWORD nt_sig = IMAGE_NT_SIGNATURE */
542 /* IMAGE_FILE_HEADER filehdr */
543 IMAGE_FILE_MACHINE
, /*WORD Machine; */
544 0x0003, /*WORD NumberOfSections; */
545 0x00000000, /*DWORD TimeDateStamp; */
546 0x00000000, /*DWORD PointerToSymbolTable; */
547 0x00000000, /*DWORD NumberOfSymbols; */
548 #if defined(TCC_TARGET_X86_64)
549 0x00F0, /*WORD SizeOfOptionalHeader; */
550 0x022F /*WORD Characteristics; */
551 #define CHARACTERISTICS_DLL 0x222E
552 #elif defined(TCC_TARGET_I386)
553 0x00E0, /*WORD SizeOfOptionalHeader; */
554 0x030F /*WORD Characteristics; */
555 #define CHARACTERISTICS_DLL 0x230E
556 #elif defined(TCC_TARGET_ARM)
557 0x00E0, /*WORD SizeOfOptionalHeader; */
558 0x010F, /*WORD Characteristics; */
559 #define CHARACTERISTICS_DLL 0x230F
562 /* IMAGE_OPTIONAL_HEADER opthdr */
563 /* Standard fields. */
564 #ifdef TCC_TARGET_X86_64
565 0x020B, /*WORD Magic; */
567 0x010B, /*WORD Magic; */
569 0x06, /*BYTE MajorLinkerVersion; */
570 0x00, /*BYTE MinorLinkerVersion; */
571 0x00000000, /*DWORD SizeOfCode; */
572 0x00000000, /*DWORD SizeOfInitializedData; */
573 0x00000000, /*DWORD SizeOfUninitializedData; */
574 0x00000000, /*DWORD AddressOfEntryPoint; */
575 0x00000000, /*DWORD BaseOfCode; */
576 #ifndef TCC_TARGET_X86_64
577 0x00000000, /*DWORD BaseOfData; */
579 /* NT additional fields. */
580 #if defined(TCC_TARGET_ARM)
581 0x00100000, /*DWORD ImageBase; */
583 0x00400000, /*DWORD ImageBase; */
585 0x00001000, /*DWORD SectionAlignment; */
586 0x00000200, /*DWORD FileAlignment; */
587 0x0004, /*WORD MajorOperatingSystemVersion; */
588 0x0000, /*WORD MinorOperatingSystemVersion; */
589 0x0000, /*WORD MajorImageVersion; */
590 0x0000, /*WORD MinorImageVersion; */
591 0x0004, /*WORD MajorSubsystemVersion; */
592 0x0000, /*WORD MinorSubsystemVersion; */
593 0x00000000, /*DWORD Win32VersionValue; */
594 0x00000000, /*DWORD SizeOfImage; */
595 0x00000200, /*DWORD SizeOfHeaders; */
596 0x00000000, /*DWORD CheckSum; */
597 0x0002, /*WORD Subsystem; */
598 0x0000, /*WORD DllCharacteristics; */
599 0x00100000, /*DWORD SizeOfStackReserve; */
600 0x00001000, /*DWORD SizeOfStackCommit; */
601 0x00100000, /*DWORD SizeOfHeapReserve; */
602 0x00001000, /*DWORD SizeOfHeapCommit; */
603 0x00000000, /*DWORD LoaderFlags; */
604 0x00000010, /*DWORD NumberOfRvaAndSizes; */
606 /* IMAGE_DATA_DIRECTORY DataDirectory[16]; */
607 {{0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0},
608 {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}}
611 struct pe_header pe_header
= pe_template
;
614 struct pe_file pf
= {0};
616 struct section_info
*si
;
617 IMAGE_SECTION_HEADER
*psh
;
618 TCCState
*s1
= pe
->s1
;
620 pf
.op
= fopen(pe
->filename
, "wb");
622 tcc_error_noabort("could not write '%s': %s", pe
->filename
, strerror(errno
));
626 pe
->sizeofheaders
= pe_file_align(pe
,
627 sizeof (struct pe_header
)
628 + pe
->sec_count
* sizeof (IMAGE_SECTION_HEADER
)
631 file_offset
= pe
->sizeofheaders
;
633 if (2 == pe
->s1
->verbose
)
634 printf("-------------------------------"
635 "\n virt file size section" "\n");
636 for (i
= 0; i
< pe
->sec_count
; ++i
) {
640 si
= pe
->sec_info
[i
];
642 addr
= si
->sh_addr
- pe
->imagebase
;
646 if (2 == pe
->s1
->verbose
)
647 printf("%6x %6x %6x %s\n",
648 (unsigned)addr
, (unsigned)file_offset
, (unsigned)size
, sh_name
);
652 if (!pe_header
.opthdr
.BaseOfCode
)
653 pe_header
.opthdr
.BaseOfCode
= addr
;
657 #ifndef TCC_TARGET_X86_64
658 if (!pe_header
.opthdr
.BaseOfData
)
659 pe_header
.opthdr
.BaseOfData
= addr
;
667 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_BASERELOC
, addr
, size
);
671 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_RESOURCE
, addr
, size
);
675 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_EXCEPTION
, addr
, size
);
680 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_IMPORT
,
681 pe
->imp_offs
, pe
->imp_size
);
682 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_IAT
,
683 pe
->iat_offs
, pe
->iat_size
);
686 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_EXPORT
,
687 pe
->exp_offs
, pe
->exp_size
);
690 memcpy(psh
->Name
, sh_name
, umin(strlen(sh_name
), sizeof psh
->Name
));
692 psh
->Characteristics
= si
->pe_flags
;
693 psh
->VirtualAddress
= addr
;
694 psh
->Misc
.VirtualSize
= size
;
695 pe_header
.opthdr
.SizeOfImage
=
696 umax(pe_virtual_align(pe
, size
+ addr
), pe_header
.opthdr
.SizeOfImage
);
699 psh
->PointerToRawData
= file_offset
;
700 file_offset
= pe_file_align(pe
, file_offset
+ si
->data_size
);
701 psh
->SizeOfRawData
= file_offset
- psh
->PointerToRawData
;
702 if (si
->cls
== sec_text
)
703 pe_header
.opthdr
.SizeOfCode
+= psh
->SizeOfRawData
;
705 pe_header
.opthdr
.SizeOfInitializedData
+= psh
->SizeOfRawData
;
709 //pe_header.filehdr.TimeDateStamp = time(NULL);
710 pe_header
.filehdr
.NumberOfSections
= pe
->sec_count
;
711 pe_header
.opthdr
.AddressOfEntryPoint
= pe
->start_addr
;
712 pe_header
.opthdr
.SizeOfHeaders
= pe
->sizeofheaders
;
713 pe_header
.opthdr
.ImageBase
= pe
->imagebase
;
714 pe_header
.opthdr
.Subsystem
= pe
->subsystem
;
715 if (pe
->s1
->pe_stack_size
)
716 pe_header
.opthdr
.SizeOfStackReserve
= pe
->s1
->pe_stack_size
;
717 if (PE_DLL
== pe
->type
)
718 pe_header
.filehdr
.Characteristics
= CHARACTERISTICS_DLL
;
719 pe_header
.filehdr
.Characteristics
|= pe
->s1
->pe_characteristics
;
721 pe_fwrite(&pe_header
, sizeof pe_header
, &pf
);
722 for (i
= 0; i
< pe
->sec_count
; ++i
)
723 pe_fwrite(&pe
->sec_info
[i
]->ish
, sizeof(IMAGE_SECTION_HEADER
), &pf
);
725 file_offset
= pe
->sizeofheaders
;
726 for (i
= 0; i
< pe
->sec_count
; ++i
) {
728 si
= pe
->sec_info
[i
];
731 for (s
= si
->sec
; s
; s
= s
->prev
) {
732 pe_fpad(&pf
, file_offset
);
733 pe_fwrite(s
->data
, s
->data_offset
, &pf
);
735 file_offset
+= s
->prev
->sh_addr
- s
->sh_addr
;
737 file_offset
= si
->ish
.PointerToRawData
+ si
->ish
.SizeOfRawData
;
738 pe_fpad(&pf
, file_offset
);
741 pf
.sum
+= file_offset
;
742 fseek(pf
.op
, offsetof(struct pe_header
, opthdr
.CheckSum
), SEEK_SET
);
743 pe_fwrite(&pf
.sum
, sizeof (DWORD
), &pf
);
747 chmod(pe
->filename
, 0777);
750 if (2 == pe
->s1
->verbose
)
751 printf("-------------------------------\n");
753 printf("<- %s (%u bytes)\n", pe
->filename
, (unsigned)file_offset
);
758 /*----------------------------------------------------------------------------*/
760 static struct import_symbol
*pe_add_import(struct pe_info
*pe
, int sym_index
)
764 struct pe_import_info
*p
;
765 struct import_symbol
*s
;
768 isym
= (ElfW(Sym
) *)pe
->s1
->dynsymtab_section
->data
+ sym_index
;
769 dll_index
= isym
->st_size
;
771 i
= dynarray_assoc ((void**)pe
->imp_info
, pe
->imp_count
, dll_index
);
776 p
= tcc_mallocz(sizeof *p
);
777 p
->dll_index
= dll_index
;
778 dynarray_add(&pe
->imp_info
, &pe
->imp_count
, p
);
781 i
= dynarray_assoc ((void**)p
->symbols
, p
->sym_count
, sym_index
);
783 return p
->symbols
[i
];
785 s
= tcc_mallocz(sizeof *s
);
786 dynarray_add(&p
->symbols
, &p
->sym_count
, s
);
787 s
->sym_index
= sym_index
;
791 void pe_free_imports(struct pe_info
*pe
)
794 for (i
= 0; i
< pe
->imp_count
; ++i
) {
795 struct pe_import_info
*p
= pe
->imp_info
[i
];
796 dynarray_reset(&p
->symbols
, &p
->sym_count
);
798 dynarray_reset(&pe
->imp_info
, &pe
->imp_count
);
801 /*----------------------------------------------------------------------------*/
802 static void pe_build_imports(struct pe_info
*pe
)
804 int thk_ptr
, ent_ptr
, dll_ptr
, sym_cnt
, i
;
805 DWORD rva_base
= pe
->thunk
->sh_addr
- pe
->imagebase
;
806 int ndlls
= pe
->imp_count
;
807 TCCState
*s1
= pe
->s1
;
809 for (sym_cnt
= i
= 0; i
< ndlls
; ++i
)
810 sym_cnt
+= pe
->imp_info
[i
]->sym_count
;
815 pe_align_section(pe
->thunk
, 16);
816 pe
->imp_size
= (ndlls
+ 1) * sizeof(IMAGE_IMPORT_DESCRIPTOR
);
817 pe
->iat_size
= (sym_cnt
+ ndlls
) * sizeof(ADDR3264
);
818 dll_ptr
= pe
->thunk
->data_offset
;
819 thk_ptr
= dll_ptr
+ pe
->imp_size
;
820 ent_ptr
= thk_ptr
+ pe
->iat_size
;
821 pe
->imp_offs
= dll_ptr
+ rva_base
;
822 pe
->iat_offs
= thk_ptr
+ rva_base
;
823 section_ptr_add(pe
->thunk
, pe
->imp_size
+ 2*pe
->iat_size
);
825 for (i
= 0; i
< pe
->imp_count
; ++i
) {
826 IMAGE_IMPORT_DESCRIPTOR
*hdr
;
829 struct pe_import_info
*p
= pe
->imp_info
[i
];
831 DLLReference
*dllref
;
833 dllindex
= p
->dll_index
;
835 name
= tcc_basename((dllref
= pe
->s1
->loaded_dlls
[dllindex
-1])->name
);
837 name
= "", dllref
= NULL
;
839 /* put the dll name into the import header */
840 v
= put_elf_str(pe
->thunk
, name
);
841 hdr
= (IMAGE_IMPORT_DESCRIPTOR
*)(pe
->thunk
->data
+ dll_ptr
);
842 hdr
->FirstThunk
= thk_ptr
+ rva_base
;
843 hdr
->OriginalFirstThunk
= ent_ptr
+ rva_base
;
844 hdr
->Name
= v
+ rva_base
;
846 for (k
= 0, n
= p
->sym_count
; k
<= n
; ++k
) {
848 int iat_index
= p
->symbols
[k
]->iat_index
;
849 int sym_index
= p
->symbols
[k
]->sym_index
;
850 ElfW(Sym
) *imp_sym
= (ElfW(Sym
) *)pe
->s1
->dynsymtab_section
->data
+ sym_index
;
851 ElfW(Sym
) *org_sym
= (ElfW(Sym
) *)symtab_section
->data
+ iat_index
;
852 const char *name
= (char*)pe
->s1
->dynsymtab_section
->link
->data
+ imp_sym
->st_name
;
855 org_sym
->st_value
= thk_ptr
;
856 org_sym
->st_shndx
= pe
->thunk
->sh_num
;
859 v
= 0, ordinal
= imp_sym
->st_value
; /* ordinal from pe_load_def */
861 ordinal
= 0, v
= imp_sym
->st_value
; /* address from tcc_add_symbol() */
864 if (pe
->type
== PE_RUN
) {
866 if ( !dllref
->handle
)
867 dllref
->handle
= LoadLibrary(dllref
->name
);
868 v
= (ADDR3264
)GetProcAddress(dllref
->handle
, ordinal
?(char*)0+ordinal
:name
);
871 tcc_error_noabort("could not resolve symbol '%s'", name
);
875 v
= ordinal
| (ADDR3264
)1 << (sizeof(ADDR3264
)*8 - 1);
877 v
= pe
->thunk
->data_offset
+ rva_base
;
878 section_ptr_add(pe
->thunk
, sizeof(WORD
)); /* hint, not used */
879 put_elf_str(pe
->thunk
, name
);
883 v
= 0; /* last entry is zero */
886 *(ADDR3264
*)(pe
->thunk
->data
+thk_ptr
) =
887 *(ADDR3264
*)(pe
->thunk
->data
+ent_ptr
) = v
;
888 thk_ptr
+= sizeof (ADDR3264
);
889 ent_ptr
+= sizeof (ADDR3264
);
891 dll_ptr
+= sizeof(IMAGE_IMPORT_DESCRIPTOR
);
895 /* ------------------------------------------------------------- */
903 static int sym_cmp(const void *va
, const void *vb
)
905 const char *ca
= (*(struct pe_sort_sym
**)va
)->name
;
906 const char *cb
= (*(struct pe_sort_sym
**)vb
)->name
;
907 return strcmp(ca
, cb
);
910 static void pe_build_exports(struct pe_info
*pe
)
913 int sym_index
, sym_end
;
914 DWORD rva_base
, base_o
, func_o
, name_o
, ord_o
, str_o
;
915 IMAGE_EXPORT_DIRECTORY
*hdr
;
917 struct pe_sort_sym
**sorted
, *p
;
918 TCCState
*s1
= pe
->s1
;
925 rva_base
= pe
->thunk
->sh_addr
- pe
->imagebase
;
926 sym_count
= 0, sorted
= NULL
, op
= NULL
;
928 sym_end
= symtab_section
->data_offset
/ sizeof(ElfW(Sym
));
929 for (sym_index
= 1; sym_index
< sym_end
; ++sym_index
) {
930 sym
= (ElfW(Sym
)*)symtab_section
->data
+ sym_index
;
931 name
= pe_export_name(pe
->s1
, sym
);
932 if (sym
->st_other
& ST_PE_EXPORT
) {
933 p
= tcc_malloc(sizeof *p
);
934 p
->index
= sym_index
;
936 dynarray_add(&sorted
, &sym_count
, p
);
939 if (sym
->st_other
& ST_PE_EXPORT
)
940 printf("export: %s\n", name
);
941 if (sym
->st_other
& ST_PE_STDCALL
)
942 printf("stdcall: %s\n", name
);
949 qsort (sorted
, sym_count
, sizeof *sorted
, sym_cmp
);
951 pe_align_section(pe
->thunk
, 16);
952 dllname
= tcc_basename(pe
->filename
);
954 base_o
= pe
->thunk
->data_offset
;
955 func_o
= base_o
+ sizeof(IMAGE_EXPORT_DIRECTORY
);
956 name_o
= func_o
+ sym_count
* sizeof (DWORD
);
957 ord_o
= name_o
+ sym_count
* sizeof (DWORD
);
958 str_o
= ord_o
+ sym_count
* sizeof(WORD
);
960 hdr
= section_ptr_add(pe
->thunk
, str_o
- base_o
);
961 hdr
->Characteristics
= 0;
963 hdr
->NumberOfFunctions
= sym_count
;
964 hdr
->NumberOfNames
= sym_count
;
965 hdr
->AddressOfFunctions
= func_o
+ rva_base
;
966 hdr
->AddressOfNames
= name_o
+ rva_base
;
967 hdr
->AddressOfNameOrdinals
= ord_o
+ rva_base
;
968 hdr
->Name
= str_o
+ rva_base
;
969 put_elf_str(pe
->thunk
, dllname
);
972 /* automatically write exports to <output-filename>.def */
973 pstrcpy(buf
, sizeof buf
, pe
->filename
);
974 strcpy(tcc_fileextension(buf
), ".def");
975 op
= fopen(buf
, "wb");
977 tcc_error_noabort("could not create '%s': %s", buf
, strerror(errno
));
979 fprintf(op
, "LIBRARY %s\n\nEXPORTS\n", dllname
);
981 printf("<- %s (%d symbol%s)\n", buf
, sym_count
, &"s"[sym_count
< 2]);
985 for (ord
= 0; ord
< sym_count
; ++ord
)
987 p
= sorted
[ord
], sym_index
= p
->index
, name
= p
->name
;
988 /* insert actual address later in relocate_sections() */
989 put_elf_reloc(symtab_section
, pe
->thunk
,
990 func_o
, R_XXX_RELATIVE
, sym_index
);
991 *(DWORD
*)(pe
->thunk
->data
+ name_o
)
992 = pe
->thunk
->data_offset
+ rva_base
;
993 *(WORD
*)(pe
->thunk
->data
+ ord_o
)
995 put_elf_str(pe
->thunk
, name
);
996 func_o
+= sizeof (DWORD
);
997 name_o
+= sizeof (DWORD
);
998 ord_o
+= sizeof (WORD
);
1000 fprintf(op
, "%s\n", name
);
1003 pe
->exp_offs
= base_o
+ rva_base
;
1004 pe
->exp_size
= pe
->thunk
->data_offset
- base_o
;
1005 dynarray_reset(&sorted
, &sym_count
);
1010 /* ------------------------------------------------------------- */
1011 static void pe_build_reloc (struct pe_info
*pe
)
1013 DWORD offset
, block_ptr
, sh_addr
, addr
;
1015 ElfW_Rel
*rel
, *rel_end
;
1016 Section
*s
= NULL
, *sr
;
1017 struct pe_reloc_header
*hdr
;
1019 sh_addr
= offset
= block_ptr
= count
= i
= 0;
1020 rel
= rel_end
= NULL
;
1023 if (rel
< rel_end
) {
1024 int type
= ELFW(R_TYPE
)(rel
->r_info
);
1025 addr
= rel
->r_offset
+ sh_addr
;
1027 if (type
!= REL_TYPE_DIRECT
)
1029 if (count
== 0) { /* new block */
1030 block_ptr
= pe
->reloc
->data_offset
;
1031 section_ptr_add(pe
->reloc
, sizeof(struct pe_reloc_header
));
1032 offset
= addr
& 0xFFFFFFFF<<12;
1034 if ((addr
-= offset
) < (1<<12)) { /* one block spans 4k addresses */
1035 WORD
*wp
= section_ptr_add(pe
->reloc
, sizeof (WORD
));
1036 *wp
= addr
| PE_IMAGE_REL
<<12;
1045 rel
= (ElfW_Rel
*)sr
->data
;
1046 rel_end
= (ElfW_Rel
*)(sr
->data
+ sr
->data_offset
);
1047 sh_addr
= s
->sh_addr
;
1052 } else if (i
< pe
->sec_count
) {
1053 s
= pe
->sec_info
[i
]->sec
, ++i
;
1059 /* fill the last block and ready for a new one */
1060 if (count
& 1) /* align for DWORDS */
1061 section_ptr_add(pe
->reloc
, sizeof(WORD
)), ++count
;
1062 hdr
= (struct pe_reloc_header
*)(pe
->reloc
->data
+ block_ptr
);
1063 hdr
-> offset
= offset
- pe
->imagebase
;
1064 hdr
-> size
= count
* sizeof(WORD
) + sizeof(struct pe_reloc_header
);
1069 /* ------------------------------------------------------------- */
1070 static int pe_section_class(Section
*s
)
1075 flags
= s
->sh_flags
;
1077 if (0 == memcmp(name
, ".stab", 5)) {
1078 if (0 == s
->s1
->do_debug
)
1080 return name
[5] ? sec_stabstr
: sec_stab
;
1082 if (flags
& SHF_ALLOC
) {
1083 if (type
== SHT_PROGBITS
1084 || type
== SHT_INIT_ARRAY
1085 || type
== SHT_FINI_ARRAY
) {
1086 if (flags
& SHF_EXECINSTR
)
1088 if (flags
& SHF_WRITE
)
1090 if (0 == strcmp(name
, ".rsrc"))
1092 if (0 == strcmp(name
, ".iedat"))
1094 if (0 == strcmp(name
, ".pdata"))
1097 } else if (type
== SHT_NOBITS
) {
1102 if (0 == strcmp(name
, ".reloc"))
1108 static int pe_assign_addresses (struct pe_info
*pe
)
1110 int i
, k
, n
, c
, nbs
;
1112 int *sec_order
, *sec_cls
;
1113 struct section_info
*si
;
1115 TCCState
*s1
= pe
->s1
;
1117 if (PE_DLL
== pe
->type
)
1118 pe
->reloc
= new_section(pe
->s1
, ".reloc", SHT_PROGBITS
, 0);
1119 //pe->thunk = new_section(pe->s1, ".iedat", SHT_PROGBITS, SHF_ALLOC);
1121 nbs
= s1
->nb_sections
;
1122 sec_order
= tcc_mallocz(2 * sizeof (int) * nbs
);
1123 sec_cls
= sec_order
+ nbs
;
1124 for (i
= 1; i
< nbs
; ++i
) {
1125 s
= s1
->sections
[i
];
1126 k
= pe_section_class(s
);
1127 for (n
= i
; n
> 1 && k
< (c
= sec_cls
[n
- 1]); --n
)
1128 sec_cls
[n
] = c
, sec_order
[n
] = sec_order
[n
- 1];
1129 sec_cls
[n
] = k
, sec_order
[n
] = i
;
1132 addr
= pe
->imagebase
+ 1;
1134 for (i
= 1; (c
= sec_cls
[i
]) < sec_last
; ++i
) {
1135 s
= s1
->sections
[sec_order
[i
]];
1137 if (PE_MERGE_DATA
&& c
== sec_bss
)
1140 if (si
&& c
== si
->cls
) {
1141 /* merge with previous section */
1142 s
->sh_addr
= addr
= ((addr
- 1) | (16 - 1)) + 1;
1145 s
->sh_addr
= addr
= pe_virtual_align(pe
, addr
);
1148 if (NULL
== pe
->thunk
1149 && c
== (data_section
== rodata_section
? sec_data
: sec_rdata
))
1152 if (s
== pe
->thunk
) {
1153 pe_build_imports(pe
);
1154 pe_build_exports(pe
);
1157 pe_build_reloc (pe
);
1159 if (0 == s
->data_offset
)
1165 si
= tcc_mallocz(sizeof *si
);
1166 dynarray_add(&pe
->sec_info
, &pe
->sec_count
, si
);
1168 strcpy(si
->name
, s
->name
);
1172 si
->pe_flags
= IMAGE_SCN_MEM_READ
;
1173 if (s
->sh_flags
& SHF_EXECINSTR
)
1174 si
->pe_flags
|= IMAGE_SCN_MEM_EXECUTE
| IMAGE_SCN_CNT_CODE
;
1175 else if (s
->sh_type
== SHT_NOBITS
)
1176 si
->pe_flags
|= IMAGE_SCN_CNT_UNINITIALIZED_DATA
;
1178 si
->pe_flags
|= IMAGE_SCN_CNT_INITIALIZED_DATA
;
1179 if (s
->sh_flags
& SHF_WRITE
)
1180 si
->pe_flags
|= IMAGE_SCN_MEM_WRITE
;
1181 if (0 == (s
->sh_flags
& SHF_ALLOC
))
1182 si
->pe_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
1185 addr
+= s
->data_offset
;
1186 si
->sh_size
= addr
- si
->sh_addr
;
1187 if (s
->sh_type
!= SHT_NOBITS
) {
1188 Section
**ps
= &si
->sec
;
1191 *ps
= s
, s
->prev
= NULL
;
1192 si
->data_size
= si
->sh_size
;
1194 //printf("%08x %05x %08x %s\n", si->sh_addr, si->sh_size, si->pe_flags, s->name);
1197 for (i
= 1; i
< nbs
; ++i
) {
1198 Section
*s
= s1
->sections
[sec_order
[i
]];
1199 int type
= s
->sh_type
;
1200 int flags
= s
->sh_flags
;
1201 printf("section %-16s %-10s %08x %04x %s,%s,%s\n",
1203 type
== SHT_PROGBITS
? "progbits" :
1204 type
== SHT_INIT_ARRAY
? "initarr" :
1205 type
== SHT_FINI_ARRAY
? "finiarr" :
1206 type
== SHT_NOBITS
? "nobits" :
1207 type
== SHT_SYMTAB
? "symtab" :
1208 type
== SHT_STRTAB
? "strtab" :
1209 type
== SHT_RELX
? "rel" : "???",
1210 (unsigned)s
->sh_addr
,
1211 (unsigned)s
->data_offset
,
1212 flags
& SHF_ALLOC
? "alloc" : "",
1213 flags
& SHF_WRITE
? "write" : "",
1214 flags
& SHF_EXECINSTR
? "exec" : ""
1220 tcc_free(sec_order
);
1224 /*----------------------------------------------------------------------------*/
1226 static int pe_isafunc(TCCState
*s1
, int sym_index
)
1228 Section
*sr
= text_section
->reloc
;
1229 ElfW_Rel
*rel
, *rel_end
;
1230 ElfW(Addr
)info
= ELFW(R_INFO
)(sym_index
, R_XXX_FUNCCALL
);
1231 #ifdef R_XXX_FUNCCALL2
1232 ElfW(Addr
)info2
= ELFW(R_INFO
)(sym_index
, R_XXX_FUNCCALL2
);
1236 rel_end
= (ElfW_Rel
*)(sr
->data
+ sr
->data_offset
);
1237 for (rel
= (ElfW_Rel
*)sr
->data
; rel
< rel_end
; rel
++) {
1238 if (rel
->r_info
== info
)
1240 #ifdef R_XXX_FUNCCALL2
1241 if (rel
->r_info
== info2
)
1248 /*----------------------------------------------------------------------------*/
1249 static int pe_check_symbols(struct pe_info
*pe
)
1252 int sym_index
, sym_end
;
1254 TCCState
*s1
= pe
->s1
;
1256 pe_align_section(text_section
, 8);
1258 sym_end
= symtab_section
->data_offset
/ sizeof(ElfW(Sym
));
1259 for (sym_index
= 1; sym_index
< sym_end
; ++sym_index
) {
1261 sym
= (ElfW(Sym
) *)symtab_section
->data
+ sym_index
;
1262 if (sym
->st_shndx
== SHN_UNDEF
) {
1264 const char *name
= (char*)symtab_section
->link
->data
+ sym
->st_name
;
1265 unsigned type
= ELFW(ST_TYPE
)(sym
->st_info
);
1266 int imp_sym
= pe_find_import(pe
->s1
, sym
);
1267 struct import_symbol
*is
;
1272 if (type
== STT_NOTYPE
) {
1273 /* symbols from assembler have no type, find out which */
1274 if (pe_isafunc(s1
, sym_index
))
1280 is
= pe_add_import(pe
, imp_sym
);
1282 if (type
== STT_FUNC
) {
1283 unsigned long offset
= is
->thk_offset
;
1285 /* got aliased symbol, like stricmp and _stricmp */
1290 /* add a helper symbol, will be patched later in
1292 sprintf(buffer
, "IAT.%s", name
);
1293 is
->iat_index
= put_elf_sym(
1294 symtab_section
, 0, sizeof(DWORD
),
1295 ELFW(ST_INFO
)(STB_GLOBAL
, STT_OBJECT
),
1296 0, SHN_UNDEF
, buffer
);
1298 offset
= text_section
->data_offset
;
1299 is
->thk_offset
= offset
;
1301 /* add the 'jmp IAT[x]' instruction */
1302 #ifdef TCC_TARGET_ARM
1303 p
= section_ptr_add(text_section
, 8+4); // room for code and address
1304 write32le(p
+ 0, 0xE59FC000); // arm code ldr ip, [pc] ; PC+8+0 = 0001xxxx
1305 write32le(p
+ 4, 0xE59CF000); // arm code ldr pc, [ip]
1306 put_elf_reloc(symtab_section
, text_section
,
1307 offset
+ 8, R_XXX_THUNKFIX
, is
->iat_index
); // offset to IAT position
1309 p
= section_ptr_add(text_section
, 8);
1310 write16le(p
, 0x25FF);
1311 #ifdef TCC_TARGET_X86_64
1312 write32le(p
+ 2, (DWORD
)-4);
1314 put_elf_reloc(symtab_section
, text_section
,
1315 offset
+ 2, R_XXX_THUNKFIX
, is
->iat_index
);
1318 /* tcc_realloc might have altered sym's address */
1319 sym
= (ElfW(Sym
) *)symtab_section
->data
+ sym_index
;
1321 /* patch the original symbol */
1322 sym
->st_value
= offset
;
1323 sym
->st_shndx
= text_section
->sh_num
;
1324 sym
->st_other
&= ~ST_PE_EXPORT
; /* do not export */
1328 if (type
== STT_OBJECT
) { /* data, ptr to that should be */
1329 if (0 == is
->iat_index
) {
1330 /* original symbol will be patched later in pe_build_imports */
1331 is
->iat_index
= sym_index
;
1337 if (ELFW(ST_BIND
)(sym
->st_info
) == STB_WEAK
)
1338 /* STB_WEAK undefined symbols are accepted */
1340 tcc_error_noabort("undefined symbol '%s'%s", name
,
1341 imp_sym
< 0 ? ", missing __declspec(dllimport)?":"");
1344 } else if (pe
->s1
->rdynamic
1345 && ELFW(ST_BIND
)(sym
->st_info
) != STB_LOCAL
) {
1346 /* if -rdynamic option, then export all non local symbols */
1347 sym
->st_other
|= ST_PE_EXPORT
;
1353 /*----------------------------------------------------------------------------*/
1354 #if PE_PRINT_SECTIONS
1355 static void pe_print_section(FILE * f
, Section
* s
)
1357 /* just if you're curious */
1361 e
= s
->data
+ s
->data_offset
;
1364 fprintf(f
, "section \"%s\"", s
->name
);
1366 fprintf(f
, "\nlink \"%s\"", s
->link
->name
);
1368 fprintf(f
, "\nreloc \"%s\"", s
->reloc
->name
);
1369 fprintf(f
, "\nv_addr %08X", (unsigned)s
->sh_addr
);
1370 fprintf(f
, "\ncontents %08X", (unsigned)l
);
1373 if (s
->sh_type
== SHT_NOBITS
)
1379 if (s
->sh_type
== SHT_SYMTAB
)
1380 m
= sizeof(ElfW(Sym
));
1381 else if (s
->sh_type
== SHT_RELX
)
1382 m
= sizeof(ElfW_Rel
);
1386 fprintf(f
, "%-8s", "offset");
1387 for (i
= 0; i
< m
; ++i
)
1388 fprintf(f
, " %02x", i
);
1391 if (s
->sh_type
== SHT_SYMTAB
|| s
->sh_type
== SHT_RELX
) {
1392 const char *fields1
[] = {
1403 const char *fields2
[] = {
1412 if (s
->sh_type
== SHT_SYMTAB
)
1413 p
= fields1
, n
= 106;
1415 p
= fields2
, n
= 58;
1417 for (i
= 0; p
[i
]; ++i
)
1418 fprintf(f
, "%6s", p
[i
]);
1419 fprintf(f
, " symbol");
1423 for (i
= 0; i
< n
; ++i
)
1429 fprintf(f
, "%08X", i
);
1430 for (n
= 0; n
< m
; ++n
) {
1432 fprintf(f
, " %02X", p
[i
+ n
]);
1437 if (s
->sh_type
== SHT_SYMTAB
) {
1438 ElfW(Sym
) *sym
= (ElfW(Sym
) *) (p
+ i
);
1439 const char *name
= s
->link
->data
+ sym
->st_name
;
1440 fprintf(f
, " %04X %04X %04X %02X %02X %02X %04X \"%s\"",
1441 (unsigned)sym
->st_name
,
1442 (unsigned)sym
->st_value
,
1443 (unsigned)sym
->st_size
,
1444 (unsigned)ELFW(ST_BIND
)(sym
->st_info
),
1445 (unsigned)ELFW(ST_TYPE
)(sym
->st_info
),
1446 (unsigned)sym
->st_other
,
1447 (unsigned)sym
->st_shndx
,
1450 } else if (s
->sh_type
== SHT_RELX
) {
1451 ElfW_Rel
*rel
= (ElfW_Rel
*) (p
+ i
);
1453 (ElfW(Sym
) *) s
->link
->data
+ ELFW(R_SYM
)(rel
->r_info
);
1454 const char *name
= s
->link
->link
->data
+ sym
->st_name
;
1455 fprintf(f
, " %04X %02X %04X \"%s\"",
1456 (unsigned)rel
->r_offset
,
1457 (unsigned)ELFW(R_TYPE
)(rel
->r_info
),
1458 (unsigned)ELFW(R_SYM
)(rel
->r_info
),
1462 for (n
= 0; n
< m
; ++n
) {
1465 if (b
< 32 || b
>= 127)
1467 fprintf(f
, "%c", b
);
1477 static void pe_print_sections(TCCState
*s1
, const char *fname
)
1482 f
= fopen(fname
, "w");
1483 for (i
= 1; i
< s1
->nb_sections
; ++i
) {
1484 s
= s1
->sections
[i
];
1485 pe_print_section(f
, s
);
1487 pe_print_section(f
, s1
->dynsymtab_section
);
1492 /* ------------------------------------------------------------- */
1493 /* helper function for load/store to insert one more indirection */
1495 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1496 ST_FUNC SValue
*pe_getimport(SValue
*sv
, SValue
*v2
)
1499 if ((sv
->r
& (VT_VALMASK
|VT_SYM
)) != (VT_CONST
|VT_SYM
) || (sv
->r2
!= VT_CONST
))
1501 if (!sv
->sym
->a
.dllimport
)
1503 // printf("import %04x %04x %04x %s\n", sv->type.t, sv->sym->type.t, sv->r, get_tok_str(sv->sym->v, NULL));
1504 memset(v2
, 0, sizeof *v2
);
1505 v2
->type
.t
= VT_PTR
;
1506 v2
->r
= VT_CONST
| VT_SYM
| VT_LVAL
;
1509 r2
= get_reg(RC_INT
);
1512 if ((uint32_t)sv
->c
.i
) {
1518 v2
->type
.t
= sv
->type
.t
;
1519 v2
->r
|= sv
->r
& VT_LVAL
;
1524 ST_FUNC
int pe_putimport(TCCState
*s1
, int dllindex
, const char *name
, addr_t value
)
1527 s1
->dynsymtab_section
,
1529 dllindex
, /* st_size */
1530 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
),
1532 value
? SHN_ABS
: SHN_UNDEF
,
1537 static int read_mem(int fd
, unsigned offset
, void *buffer
, unsigned len
)
1539 lseek(fd
, offset
, SEEK_SET
);
1540 return len
== read(fd
, buffer
, len
);
1543 /* ------------------------------------------------------------- */
1545 static int get_dllexports(int fd
, char **pp
)
1547 int l
, i
, n
, n0
, ret
;
1550 IMAGE_SECTION_HEADER ish
;
1551 IMAGE_EXPORT_DIRECTORY ied
;
1552 IMAGE_DOS_HEADER dh
;
1553 IMAGE_FILE_HEADER ih
;
1554 DWORD sig
, ref
, addr
, ptr
, namep
;
1556 int pef_hdroffset
, opt_hdroffset
, sec_hdroffset
;
1561 if (!read_mem(fd
, 0, &dh
, sizeof dh
))
1563 if (!read_mem(fd
, dh
.e_lfanew
, &sig
, sizeof sig
))
1565 if (sig
!= 0x00004550)
1567 pef_hdroffset
= dh
.e_lfanew
+ sizeof sig
;
1568 if (!read_mem(fd
, pef_hdroffset
, &ih
, sizeof ih
))
1570 opt_hdroffset
= pef_hdroffset
+ sizeof ih
;
1571 if (ih
.Machine
== 0x014C) {
1572 IMAGE_OPTIONAL_HEADER32 oh
;
1573 sec_hdroffset
= opt_hdroffset
+ sizeof oh
;
1574 if (!read_mem(fd
, opt_hdroffset
, &oh
, sizeof oh
))
1576 if (IMAGE_DIRECTORY_ENTRY_EXPORT
>= oh
.NumberOfRvaAndSizes
)
1578 addr
= oh
.DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].VirtualAddress
;
1579 } else if (ih
.Machine
== 0x8664) {
1580 IMAGE_OPTIONAL_HEADER64 oh
;
1581 sec_hdroffset
= opt_hdroffset
+ sizeof oh
;
1582 if (!read_mem(fd
, opt_hdroffset
, &oh
, sizeof oh
))
1584 if (IMAGE_DIRECTORY_ENTRY_EXPORT
>= oh
.NumberOfRvaAndSizes
)
1586 addr
= oh
.DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].VirtualAddress
;
1590 //printf("addr: %08x\n", addr);
1591 for (i
= 0; i
< ih
.NumberOfSections
; ++i
) {
1592 if (!read_mem(fd
, sec_hdroffset
+ i
* sizeof ish
, &ish
, sizeof ish
))
1594 //printf("vaddr: %08x\n", ish.VirtualAddress);
1595 if (addr
>= ish
.VirtualAddress
&& addr
< ish
.VirtualAddress
+ ish
.SizeOfRawData
)
1601 ref
= ish
.VirtualAddress
- ish
.PointerToRawData
;
1602 if (!read_mem(fd
, addr
- ref
, &ied
, sizeof ied
))
1605 namep
= ied
.AddressOfNames
- ref
;
1606 for (i
= 0; i
< ied
.NumberOfNames
; ++i
) {
1607 if (!read_mem(fd
, namep
, &ptr
, sizeof ptr
))
1609 namep
+= sizeof ptr
;
1612 p
= tcc_realloc(p
, n0
= n0
? n0
* 2 : 256);
1613 if (!read_mem(fd
, ptr
- ref
+ l
++, p
+ n
, 1)) {
1614 tcc_free(p
), p
= NULL
;
1630 /* -------------------------------------------------------------
1631 * This is for compiled windows resources in 'coff' format
1632 * as generated by 'windres.exe -O coff ...'.
1635 static int pe_load_res(TCCState
*s1
, int fd
)
1637 struct pe_rsrc_header hdr
;
1638 Section
*rsrc_section
;
1639 int i
, ret
= -1, sym_index
;
1643 if (!read_mem(fd
, 0, &hdr
, sizeof hdr
))
1646 if (hdr
.filehdr
.Machine
!= IMAGE_FILE_MACHINE
1647 || hdr
.filehdr
.NumberOfSections
!= 1
1648 || strcmp((char*)hdr
.sectionhdr
.Name
, ".rsrc") != 0)
1651 rsrc_section
= new_section(s1
, ".rsrc", SHT_PROGBITS
, SHF_ALLOC
);
1652 ptr
= section_ptr_add(rsrc_section
, hdr
.sectionhdr
.SizeOfRawData
);
1653 offs
= hdr
.sectionhdr
.PointerToRawData
;
1654 if (!read_mem(fd
, offs
, ptr
, hdr
.sectionhdr
.SizeOfRawData
))
1656 offs
= hdr
.sectionhdr
.PointerToRelocations
;
1657 sym_index
= put_elf_sym(symtab_section
, 0, 0, 0, 0, rsrc_section
->sh_num
, ".rsrc");
1658 for (i
= 0; i
< hdr
.sectionhdr
.NumberOfRelocations
; ++i
) {
1659 struct pe_rsrc_reloc rel
;
1660 if (!read_mem(fd
, offs
, &rel
, sizeof rel
))
1662 // printf("rsrc_reloc: %x %x %x\n", rel.offset, rel.size, rel.type);
1663 if (rel
.type
!= RSRC_RELTYPE
)
1665 put_elf_reloc(symtab_section
, rsrc_section
,
1666 rel
.offset
, R_XXX_RELATIVE
, sym_index
);
1674 /* ------------------------------------------------------------- */
1676 static char *trimfront(char *p
)
1678 while ((unsigned char)*p
<= ' ' && *p
&& *p
!= '\n')
1684 static char *trimback(char *a, char *e)
1686 while (e > a && (unsigned char)e[-1] <= ' ')
1692 static char *get_token(char **s
, char *f
)
1695 p
= e
= trimfront(p
);
1696 while ((unsigned char)*e
> ' ')
1703 static int pe_load_def(TCCState
*s1
, int fd
)
1705 int state
= 0, ret
= -1, dllindex
= 0, ord
;
1706 char dllname
[80], *buf
, *line
, *p
, *x
, next
;
1708 buf
= tcc_load_text(fd
);
1709 for (line
= buf
;; ++line
) {
1710 p
= get_token(&line
, &next
);
1711 if (!(*p
&& *p
!= ';'))
1715 if (0 != stricmp(p
, "LIBRARY") || next
== '\n')
1717 pstrcpy(dllname
, sizeof dllname
, get_token(&line
, &next
));
1721 if (0 != stricmp(p
, "EXPORTS"))
1726 dllindex
= tcc_add_dllref(s1
, dllname
, 0)->index
;
1730 /* get ordinal and will store in sym->st_value */
1733 x
= get_token(&line
, &next
);
1734 ord
= (int)strtol(x
+ 1, &x
, 10);
1736 //printf("token %s ; %s : %d\n", dllname, p, ord);
1737 pe_putimport(s1
, dllindex
, p
, ord
);
1741 while ((unsigned char)next
> ' ')
1742 get_token(&line
, &next
);
1752 /* ------------------------------------------------------------- */
1754 static int pe_load_dll(TCCState
*s1
, int fd
, const char *filename
)
1759 ret
= get_dllexports(fd
, &p
);
1763 index
= tcc_add_dllref(s1
, filename
, 0)->index
;
1764 for (q
= p
; *q
; q
+= 1 + strlen(q
))
1765 pe_putimport(s1
, index
, q
, 0);
1771 ST_FUNC
int pe_load_file(struct TCCState
*s1
, int fd
, const char *filename
)
1775 if (0 == strcmp(tcc_fileextension(filename
), ".def"))
1776 ret
= pe_load_def(s1
, fd
);
1777 else if (pe_load_res(s1
, fd
) == 0)
1779 else if (read_mem(fd
, 0, buf
, 4) && 0 == memcmp(buf
, "MZ", 2))
1780 ret
= pe_load_dll(s1
, fd
, filename
);
1784 PUB_FUNC
int tcc_get_dllexports(const char *filename
, char **pp
)
1786 int ret
, fd
= open(filename
, O_RDONLY
| O_BINARY
);
1789 ret
= get_dllexports(fd
, pp
);
1794 /* ------------------------------------------------------------- */
1795 #ifdef TCC_TARGET_X86_64
1796 static unsigned pe_add_uwwind_info(TCCState
*s1
)
1798 if (NULL
== s1
->uw_pdata
) {
1799 s1
->uw_pdata
= find_section(s1
, ".pdata");
1800 s1
->uw_pdata
->sh_addralign
= 4;
1802 if (0 == s1
->uw_sym
)
1803 s1
->uw_sym
= put_elf_sym(symtab_section
, 0, 0, 0, 0, text_section
->sh_num
, ".uw_base");
1804 if (0 == s1
->uw_offs
) {
1805 /* As our functions all have the same stackframe, we use one entry for all */
1806 static const unsigned char uw_info
[] = {
1807 0x01, // UBYTE: 3 Version , UBYTE: 5 Flags
1808 0x04, // UBYTE Size of prolog
1809 0x02, // UBYTE Count of unwind codes
1810 0x05, // UBYTE: 4 Frame Register (rbp), UBYTE: 4 Frame Register offset (scaled)
1811 // USHORT * n Unwind codes array
1812 // 0x0b, 0x01, 0xff, 0xff, // stack size
1813 0x04, 0x03, // set frame ptr (mov rsp -> rbp)
1814 0x01, 0x50 // push reg (rbp)
1817 Section
*s
= text_section
;
1820 section_ptr_add(s
, -s
->data_offset
& 3); /* align */
1821 s1
->uw_offs
= s
->data_offset
;
1822 p
= section_ptr_add(s
, sizeof uw_info
);
1823 memcpy(p
, uw_info
, sizeof uw_info
);
1829 ST_FUNC
void pe_add_unwind_data(unsigned start
, unsigned end
, unsigned stack
)
1831 TCCState
*s1
= tcc_state
;
1834 struct /* _RUNTIME_FUNCTION */ {
1840 d
= pe_add_uwwind_info(s1
);
1842 o
= pd
->data_offset
;
1843 p
= section_ptr_add(pd
, sizeof *p
);
1845 /* record this function */
1846 p
->BeginAddress
= start
;
1847 p
->EndAddress
= end
;
1850 /* put relocations on it */
1851 for (n
= o
+ sizeof *p
; o
< n
; o
+= sizeof p
->BeginAddress
)
1852 put_elf_reloc(symtab_section
, pd
, o
, R_XXX_RELATIVE
, s1
->uw_sym
);
1855 /* ------------------------------------------------------------- */
1856 #ifdef TCC_TARGET_X86_64
1857 #define PE_STDSYM(n,s) n
1859 #define PE_STDSYM(n,s) "_" n s
1862 static void pe_add_runtime(TCCState
*s1
, struct pe_info
*pe
)
1864 const char *start_symbol
;
1867 if (TCC_OUTPUT_DLL
== s1
->output_type
) {
1869 start_symbol
= PE_STDSYM("__dllstart","@12");
1871 const char *run_symbol
;
1872 if (find_elf_sym(symtab_section
, PE_STDSYM("WinMain","@16"))) {
1873 start_symbol
= "__winstart";
1874 run_symbol
= "__runwinmain";
1876 } else if (find_elf_sym(symtab_section
, PE_STDSYM("wWinMain","@16"))) {
1877 start_symbol
= "__wwinstart";
1878 run_symbol
= "__runwwinmain";
1880 } else if (find_elf_sym(symtab_section
, "wmain")) {
1881 start_symbol
= "__wstart";
1882 run_symbol
= "__runwmain";
1885 start_symbol
= "__start";
1886 run_symbol
= "__runmain";
1890 if (TCC_OUTPUT_MEMORY
== s1
->output_type
)
1891 start_symbol
= run_symbol
;
1894 pe
->start_symbol
= start_symbol
+ 1;
1895 if (!s1
->leading_underscore
|| strchr(start_symbol
, '@'))
1898 #ifdef CONFIG_TCC_BACKTRACE
1899 if (s1
->do_backtrace
) {
1900 #ifdef CONFIG_TCC_BCHECK
1901 if (s1
->do_bounds_check
&& s1
->output_type
!= TCC_OUTPUT_DLL
)
1902 tcc_add_support(s1
, "bcheck.o");
1904 if (s1
->output_type
== TCC_OUTPUT_EXE
)
1905 tcc_add_support(s1
, "bt-exe.o");
1906 if (s1
->output_type
== TCC_OUTPUT_DLL
)
1907 tcc_add_support(s1
, "bt-dll.o");
1908 if (s1
->output_type
!= TCC_OUTPUT_DLL
)
1909 tcc_add_support(s1
, "bt-log.o");
1910 if (s1
->output_type
!= TCC_OUTPUT_MEMORY
)
1915 /* grab the startup code from libtcc1.a */
1916 #ifdef TCC_IS_NATIVE
1917 if (TCC_OUTPUT_MEMORY
!= s1
->output_type
|| s1
->runtime_main
)
1919 set_global_sym(s1
, start_symbol
, NULL
, 0);
1921 if (0 == s1
->nostdlib
) {
1922 static const char * const libs
[] = {
1923 "msvcrt", "kernel32", "", "user32", "gdi32", NULL
1925 const char * const *pp
, *p
;
1927 tcc_add_support(s1
, TCC_LIBTCC1
);
1928 for (pp
= libs
; 0 != (p
= *pp
); ++pp
) {
1930 tcc_add_library_err(s1
, p
);
1931 else if (PE_DLL
!= pe_type
&& PE_GUI
!= pe_type
)
1936 /* need this for 'tccelf.c:relocate_sections()' */
1937 if (TCC_OUTPUT_DLL
== s1
->output_type
)
1938 s1
->output_type
= TCC_OUTPUT_EXE
;
1939 if (TCC_OUTPUT_MEMORY
== s1
->output_type
)
1944 static void pe_set_options(TCCState
* s1
, struct pe_info
*pe
)
1946 if (PE_DLL
== pe
->type
) {
1947 /* XXX: check if is correct for arm-pe target */
1948 pe
->imagebase
= 0x10000000;
1950 #if defined(TCC_TARGET_ARM)
1951 pe
->imagebase
= 0x00010000;
1953 pe
->imagebase
= 0x00400000;
1957 #if defined(TCC_TARGET_ARM)
1958 /* we use "console" subsystem by default */
1961 if (PE_DLL
== pe
->type
|| PE_GUI
== pe
->type
)
1966 /* Allow override via -Wl,-subsystem=... option */
1967 if (s1
->pe_subsystem
!= 0)
1968 pe
->subsystem
= s1
->pe_subsystem
;
1970 /* set default file/section alignment */
1971 if (pe
->subsystem
== 1) {
1972 pe
->section_align
= 0x20;
1973 pe
->file_align
= 0x20;
1975 pe
->section_align
= 0x1000;
1976 pe
->file_align
= 0x200;
1979 if (s1
->section_align
!= 0)
1980 pe
->section_align
= s1
->section_align
;
1981 if (s1
->pe_file_align
!= 0)
1982 pe
->file_align
= s1
->pe_file_align
;
1984 if ((pe
->subsystem
>= 10) && (pe
->subsystem
<= 12))
1987 if (s1
->has_text_addr
)
1988 pe
->imagebase
= s1
->text_addr
;
1991 ST_FUNC
int pe_output_file(TCCState
*s1
, const char *filename
)
1996 memset(&pe
, 0, sizeof pe
);
1997 pe
.filename
= filename
;
2001 #ifdef CONFIG_TCC_BCHECK
2004 tcc_add_pragma_libs(s1
);
2005 pe_add_runtime(s1
, &pe
);
2006 resolve_common_syms(s1
);
2007 pe_set_options(s1
, &pe
);
2009 ret
= pe_check_symbols(&pe
);
2012 else if (filename
) {
2013 pe_assign_addresses(&pe
);
2014 relocate_syms(s1
, s1
->symtab
, 0);
2015 s1
->pe_imagebase
= pe
.imagebase
;
2016 relocate_sections(s1
);
2017 pe
.start_addr
= (DWORD
)
2018 (get_sym_addr(s1
, pe
.start_symbol
, 1, 1) - pe
.imagebase
);
2022 ret
= pe_write(&pe
);
2023 dynarray_reset(&pe
.sec_info
, &pe
.sec_count
);
2025 #ifdef TCC_IS_NATIVE
2026 pe
.thunk
= data_section
;
2027 pe_build_imports(&pe
);
2028 s1
->runtime_main
= pe
.start_symbol
;
2029 #ifdef TCC_TARGET_X86_64
2030 s1
->uw_pdata
= find_section(s1
, ".pdata");
2035 pe_free_imports(&pe
);
2037 #if PE_PRINT_SECTIONS
2038 if (s1
->g_debug
& 8)
2039 pe_print_sections(s1
, "tcc.log");
2044 /* ------------------------------------------------------------- */