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 ADDR3264
pe_virtual_align(struct pe_info
*pe
, ADDR3264 n
)
456 return (n
+ (pe
->section_align
- 1)) & ~(ADDR3264
)(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 return tcc_error_noabort("could not write '%s': %s", pe
->filename
, strerror(errno
));
624 pe
->sizeofheaders
= pe_file_align(pe
,
625 sizeof (struct pe_header
)
626 + pe
->sec_count
* sizeof (IMAGE_SECTION_HEADER
)
629 file_offset
= pe
->sizeofheaders
;
631 if (2 == pe
->s1
->verbose
)
632 printf("-------------------------------"
633 "\n virt file size section" "\n");
634 for (i
= 0; i
< pe
->sec_count
; ++i
) {
638 si
= pe
->sec_info
[i
];
640 addr
= si
->sh_addr
- pe
->imagebase
;
644 if (2 == pe
->s1
->verbose
)
645 printf("%6x %6x %6x %s\n",
646 (unsigned)addr
, (unsigned)file_offset
, (unsigned)size
, sh_name
);
650 if (!pe_header
.opthdr
.BaseOfCode
)
651 pe_header
.opthdr
.BaseOfCode
= addr
;
655 #ifndef TCC_TARGET_X86_64
656 if (!pe_header
.opthdr
.BaseOfData
)
657 pe_header
.opthdr
.BaseOfData
= addr
;
665 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_BASERELOC
, addr
, size
);
669 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_RESOURCE
, addr
, size
);
673 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_EXCEPTION
, addr
, size
);
678 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_IMPORT
,
679 pe
->imp_offs
, pe
->imp_size
);
680 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_IAT
,
681 pe
->iat_offs
, pe
->iat_size
);
684 pe_set_datadir(&pe_header
, IMAGE_DIRECTORY_ENTRY_EXPORT
,
685 pe
->exp_offs
, pe
->exp_size
);
688 memcpy(psh
->Name
, sh_name
, umin(strlen(sh_name
), sizeof psh
->Name
));
690 psh
->Characteristics
= si
->pe_flags
;
691 psh
->VirtualAddress
= addr
;
692 psh
->Misc
.VirtualSize
= size
;
693 pe_header
.opthdr
.SizeOfImage
=
694 umax(pe_virtual_align(pe
, size
+ addr
), pe_header
.opthdr
.SizeOfImage
);
697 psh
->PointerToRawData
= file_offset
;
698 file_offset
= pe_file_align(pe
, file_offset
+ si
->data_size
);
699 psh
->SizeOfRawData
= file_offset
- psh
->PointerToRawData
;
700 if (si
->cls
== sec_text
)
701 pe_header
.opthdr
.SizeOfCode
+= psh
->SizeOfRawData
;
703 pe_header
.opthdr
.SizeOfInitializedData
+= psh
->SizeOfRawData
;
707 //pe_header.filehdr.TimeDateStamp = time(NULL);
708 pe_header
.filehdr
.NumberOfSections
= pe
->sec_count
;
709 pe_header
.opthdr
.AddressOfEntryPoint
= pe
->start_addr
;
710 pe_header
.opthdr
.SizeOfHeaders
= pe
->sizeofheaders
;
711 pe_header
.opthdr
.ImageBase
= pe
->imagebase
;
712 pe_header
.opthdr
.Subsystem
= pe
->subsystem
;
713 if (pe
->s1
->pe_stack_size
)
714 pe_header
.opthdr
.SizeOfStackReserve
= pe
->s1
->pe_stack_size
;
715 if (PE_DLL
== pe
->type
)
716 pe_header
.filehdr
.Characteristics
= CHARACTERISTICS_DLL
;
717 pe_header
.filehdr
.Characteristics
|= pe
->s1
->pe_characteristics
;
719 pe_fwrite(&pe_header
, sizeof pe_header
, &pf
);
720 for (i
= 0; i
< pe
->sec_count
; ++i
)
721 pe_fwrite(&pe
->sec_info
[i
]->ish
, sizeof(IMAGE_SECTION_HEADER
), &pf
);
723 file_offset
= pe
->sizeofheaders
;
724 for (i
= 0; i
< pe
->sec_count
; ++i
) {
726 si
= pe
->sec_info
[i
];
729 for (s
= si
->sec
; s
; s
= s
->prev
) {
730 pe_fpad(&pf
, file_offset
);
731 pe_fwrite(s
->data
, s
->data_offset
, &pf
);
733 file_offset
+= s
->prev
->sh_addr
- s
->sh_addr
;
735 file_offset
= si
->ish
.PointerToRawData
+ si
->ish
.SizeOfRawData
;
736 pe_fpad(&pf
, file_offset
);
739 pf
.sum
+= file_offset
;
740 fseek(pf
.op
, offsetof(struct pe_header
, opthdr
.CheckSum
), SEEK_SET
);
741 pe_fwrite(&pf
.sum
, sizeof (DWORD
), &pf
);
745 chmod(pe
->filename
, 0777);
748 if (2 == pe
->s1
->verbose
)
749 printf("-------------------------------\n");
751 printf("<- %s (%u bytes)\n", pe
->filename
, (unsigned)file_offset
);
756 /*----------------------------------------------------------------------------*/
758 static struct import_symbol
*pe_add_import(struct pe_info
*pe
, int sym_index
)
762 struct pe_import_info
*p
;
763 struct import_symbol
*s
;
766 isym
= (ElfW(Sym
) *)pe
->s1
->dynsymtab_section
->data
+ sym_index
;
767 dll_index
= isym
->st_size
;
769 i
= dynarray_assoc ((void**)pe
->imp_info
, pe
->imp_count
, dll_index
);
774 p
= tcc_mallocz(sizeof *p
);
775 p
->dll_index
= dll_index
;
776 dynarray_add(&pe
->imp_info
, &pe
->imp_count
, p
);
779 i
= dynarray_assoc ((void**)p
->symbols
, p
->sym_count
, sym_index
);
781 return p
->symbols
[i
];
783 s
= tcc_mallocz(sizeof *s
);
784 dynarray_add(&p
->symbols
, &p
->sym_count
, s
);
785 s
->sym_index
= sym_index
;
789 void pe_free_imports(struct pe_info
*pe
)
792 for (i
= 0; i
< pe
->imp_count
; ++i
) {
793 struct pe_import_info
*p
= pe
->imp_info
[i
];
794 dynarray_reset(&p
->symbols
, &p
->sym_count
);
796 dynarray_reset(&pe
->imp_info
, &pe
->imp_count
);
799 /*----------------------------------------------------------------------------*/
800 static void pe_build_imports(struct pe_info
*pe
)
802 int thk_ptr
, ent_ptr
, dll_ptr
, sym_cnt
, i
;
803 DWORD rva_base
= pe
->thunk
->sh_addr
- pe
->imagebase
;
804 int ndlls
= pe
->imp_count
;
805 TCCState
*s1
= pe
->s1
;
807 for (sym_cnt
= i
= 0; i
< ndlls
; ++i
)
808 sym_cnt
+= pe
->imp_info
[i
]->sym_count
;
813 pe_align_section(pe
->thunk
, 16);
814 pe
->imp_size
= (ndlls
+ 1) * sizeof(IMAGE_IMPORT_DESCRIPTOR
);
815 pe
->iat_size
= (sym_cnt
+ ndlls
) * sizeof(ADDR3264
);
816 dll_ptr
= pe
->thunk
->data_offset
;
817 thk_ptr
= dll_ptr
+ pe
->imp_size
;
818 ent_ptr
= thk_ptr
+ pe
->iat_size
;
819 pe
->imp_offs
= dll_ptr
+ rva_base
;
820 pe
->iat_offs
= thk_ptr
+ rva_base
;
821 section_ptr_add(pe
->thunk
, pe
->imp_size
+ 2*pe
->iat_size
);
823 for (i
= 0; i
< pe
->imp_count
; ++i
) {
824 IMAGE_IMPORT_DESCRIPTOR
*hdr
;
827 struct pe_import_info
*p
= pe
->imp_info
[i
];
829 DLLReference
*dllref
;
831 dllindex
= p
->dll_index
;
833 name
= tcc_basename((dllref
= pe
->s1
->loaded_dlls
[dllindex
-1])->name
);
835 name
= "", dllref
= NULL
;
837 /* put the dll name into the import header */
838 v
= put_elf_str(pe
->thunk
, name
);
839 hdr
= (IMAGE_IMPORT_DESCRIPTOR
*)(pe
->thunk
->data
+ dll_ptr
);
840 hdr
->FirstThunk
= thk_ptr
+ rva_base
;
841 hdr
->OriginalFirstThunk
= ent_ptr
+ rva_base
;
842 hdr
->Name
= v
+ rva_base
;
844 for (k
= 0, n
= p
->sym_count
; k
<= n
; ++k
) {
846 int iat_index
= p
->symbols
[k
]->iat_index
;
847 int sym_index
= p
->symbols
[k
]->sym_index
;
848 ElfW(Sym
) *imp_sym
= (ElfW(Sym
) *)pe
->s1
->dynsymtab_section
->data
+ sym_index
;
849 ElfW(Sym
) *org_sym
= (ElfW(Sym
) *)symtab_section
->data
+ iat_index
;
850 const char *name
= (char*)pe
->s1
->dynsymtab_section
->link
->data
+ imp_sym
->st_name
;
853 org_sym
->st_value
= thk_ptr
;
854 org_sym
->st_shndx
= pe
->thunk
->sh_num
;
857 v
= 0, ordinal
= imp_sym
->st_value
; /* ordinal from pe_load_def */
859 ordinal
= 0, v
= imp_sym
->st_value
; /* address from tcc_add_symbol() */
862 if (pe
->type
== PE_RUN
) {
864 if ( !dllref
->handle
)
865 dllref
->handle
= LoadLibrary(dllref
->name
);
866 v
= (ADDR3264
)GetProcAddress(dllref
->handle
, ordinal
?(char*)0+ordinal
:name
);
869 tcc_error_noabort("could not resolve symbol '%s'", name
);
873 v
= ordinal
| (ADDR3264
)1 << (sizeof(ADDR3264
)*8 - 1);
875 v
= pe
->thunk
->data_offset
+ rva_base
;
876 section_ptr_add(pe
->thunk
, sizeof(WORD
)); /* hint, not used */
877 put_elf_str(pe
->thunk
, name
);
881 v
= 0; /* last entry is zero */
884 *(ADDR3264
*)(pe
->thunk
->data
+thk_ptr
) =
885 *(ADDR3264
*)(pe
->thunk
->data
+ent_ptr
) = v
;
886 thk_ptr
+= sizeof (ADDR3264
);
887 ent_ptr
+= sizeof (ADDR3264
);
889 dll_ptr
+= sizeof(IMAGE_IMPORT_DESCRIPTOR
);
893 /* ------------------------------------------------------------- */
901 static int sym_cmp(const void *va
, const void *vb
)
903 const char *ca
= (*(struct pe_sort_sym
**)va
)->name
;
904 const char *cb
= (*(struct pe_sort_sym
**)vb
)->name
;
905 return strcmp(ca
, cb
);
908 static void pe_build_exports(struct pe_info
*pe
)
911 int sym_index
, sym_end
;
912 DWORD rva_base
, base_o
, func_o
, name_o
, ord_o
, str_o
;
913 IMAGE_EXPORT_DIRECTORY
*hdr
;
915 struct pe_sort_sym
**sorted
, *p
;
916 TCCState
*s1
= pe
->s1
;
923 rva_base
= pe
->thunk
->sh_addr
- pe
->imagebase
;
924 sym_count
= 0, sorted
= NULL
, op
= NULL
;
926 sym_end
= symtab_section
->data_offset
/ sizeof(ElfW(Sym
));
927 for (sym_index
= 1; sym_index
< sym_end
; ++sym_index
) {
928 sym
= (ElfW(Sym
)*)symtab_section
->data
+ sym_index
;
929 name
= pe_export_name(pe
->s1
, sym
);
930 if (sym
->st_other
& ST_PE_EXPORT
) {
931 p
= tcc_malloc(sizeof *p
);
932 p
->index
= sym_index
;
934 dynarray_add(&sorted
, &sym_count
, p
);
937 if (sym
->st_other
& ST_PE_EXPORT
)
938 printf("export: %s\n", name
);
939 if (sym
->st_other
& ST_PE_STDCALL
)
940 printf("stdcall: %s\n", name
);
947 qsort (sorted
, sym_count
, sizeof *sorted
, sym_cmp
);
949 pe_align_section(pe
->thunk
, 16);
950 dllname
= tcc_basename(pe
->filename
);
952 base_o
= pe
->thunk
->data_offset
;
953 func_o
= base_o
+ sizeof(IMAGE_EXPORT_DIRECTORY
);
954 name_o
= func_o
+ sym_count
* sizeof (DWORD
);
955 ord_o
= name_o
+ sym_count
* sizeof (DWORD
);
956 str_o
= ord_o
+ sym_count
* sizeof(WORD
);
958 hdr
= section_ptr_add(pe
->thunk
, str_o
- base_o
);
959 hdr
->Characteristics
= 0;
961 hdr
->NumberOfFunctions
= sym_count
;
962 hdr
->NumberOfNames
= sym_count
;
963 hdr
->AddressOfFunctions
= func_o
+ rva_base
;
964 hdr
->AddressOfNames
= name_o
+ rva_base
;
965 hdr
->AddressOfNameOrdinals
= ord_o
+ rva_base
;
966 hdr
->Name
= str_o
+ rva_base
;
967 put_elf_str(pe
->thunk
, dllname
);
970 /* automatically write exports to <output-filename>.def */
971 pstrcpy(buf
, sizeof buf
, pe
->filename
);
972 strcpy(tcc_fileextension(buf
), ".def");
973 op
= fopen(buf
, "wb");
975 tcc_error_noabort("could not create '%s': %s", buf
, strerror(errno
));
977 fprintf(op
, "LIBRARY %s\n\nEXPORTS\n", dllname
);
979 printf("<- %s (%d symbol%s)\n", buf
, sym_count
, &"s"[sym_count
< 2]);
983 for (ord
= 0; ord
< sym_count
; ++ord
)
985 p
= sorted
[ord
], sym_index
= p
->index
, name
= p
->name
;
986 /* insert actual address later in relocate_sections() */
987 put_elf_reloc(symtab_section
, pe
->thunk
,
988 func_o
, R_XXX_RELATIVE
, sym_index
);
989 *(DWORD
*)(pe
->thunk
->data
+ name_o
)
990 = pe
->thunk
->data_offset
+ rva_base
;
991 *(WORD
*)(pe
->thunk
->data
+ ord_o
)
993 put_elf_str(pe
->thunk
, name
);
994 func_o
+= sizeof (DWORD
);
995 name_o
+= sizeof (DWORD
);
996 ord_o
+= sizeof (WORD
);
998 fprintf(op
, "%s\n", name
);
1001 pe
->exp_offs
= base_o
+ rva_base
;
1002 pe
->exp_size
= pe
->thunk
->data_offset
- base_o
;
1003 dynarray_reset(&sorted
, &sym_count
);
1008 /* ------------------------------------------------------------- */
1009 static void pe_build_reloc (struct pe_info
*pe
)
1011 DWORD offset
, block_ptr
, sh_addr
, addr
;
1013 ElfW_Rel
*rel
, *rel_end
;
1014 Section
*s
= NULL
, *sr
;
1015 struct pe_reloc_header
*hdr
;
1017 sh_addr
= offset
= block_ptr
= count
= i
= 0;
1018 rel
= rel_end
= NULL
;
1021 if (rel
< rel_end
) {
1022 int type
= ELFW(R_TYPE
)(rel
->r_info
);
1023 addr
= rel
->r_offset
+ sh_addr
;
1025 if (type
!= REL_TYPE_DIRECT
)
1027 if (count
== 0) { /* new block */
1028 block_ptr
= pe
->reloc
->data_offset
;
1029 section_ptr_add(pe
->reloc
, sizeof(struct pe_reloc_header
));
1030 offset
= addr
& 0xFFFFFFFF<<12;
1032 if ((addr
-= offset
) < (1<<12)) { /* one block spans 4k addresses */
1033 WORD
*wp
= section_ptr_add(pe
->reloc
, sizeof (WORD
));
1034 *wp
= addr
| PE_IMAGE_REL
<<12;
1043 rel
= (ElfW_Rel
*)sr
->data
;
1044 rel_end
= (ElfW_Rel
*)(sr
->data
+ sr
->data_offset
);
1045 sh_addr
= s
->sh_addr
;
1050 } else if (i
< pe
->sec_count
) {
1051 s
= pe
->sec_info
[i
]->sec
, ++i
;
1057 /* fill the last block and ready for a new one */
1058 if (count
& 1) /* align for DWORDS */
1059 section_ptr_add(pe
->reloc
, sizeof(WORD
)), ++count
;
1060 hdr
= (struct pe_reloc_header
*)(pe
->reloc
->data
+ block_ptr
);
1061 hdr
-> offset
= offset
- pe
->imagebase
;
1062 hdr
-> size
= count
* sizeof(WORD
) + sizeof(struct pe_reloc_header
);
1067 /* ------------------------------------------------------------- */
1068 static int pe_section_class(Section
*s
)
1073 flags
= s
->sh_flags
;
1075 if (0 == memcmp(name
, ".stab", 5)) {
1076 if (0 == s
->s1
->do_debug
)
1078 return name
[5] ? sec_stabstr
: sec_stab
;
1080 if (flags
& SHF_ALLOC
) {
1081 if (type
== SHT_PROGBITS
1082 || type
== SHT_INIT_ARRAY
1083 || type
== SHT_FINI_ARRAY
) {
1084 if (flags
& SHF_EXECINSTR
)
1086 if (flags
& SHF_WRITE
)
1088 if (0 == strcmp(name
, ".rsrc"))
1090 if (0 == strcmp(name
, ".iedat"))
1092 if (0 == strcmp(name
, ".pdata"))
1095 } else if (type
== SHT_NOBITS
) {
1100 if (0 == strcmp(name
, ".reloc"))
1106 static int pe_assign_addresses (struct pe_info
*pe
)
1108 int i
, k
, n
, c
, nbs
;
1110 int *sec_order
, *sec_cls
;
1111 struct section_info
*si
;
1113 TCCState
*s1
= pe
->s1
;
1115 if (PE_DLL
== pe
->type
)
1116 pe
->reloc
= new_section(pe
->s1
, ".reloc", SHT_PROGBITS
, 0);
1117 //pe->thunk = new_section(pe->s1, ".iedat", SHT_PROGBITS, SHF_ALLOC);
1119 nbs
= s1
->nb_sections
;
1120 sec_order
= tcc_mallocz(2 * sizeof (int) * nbs
);
1121 sec_cls
= sec_order
+ nbs
;
1122 for (i
= 1; i
< nbs
; ++i
) {
1123 s
= s1
->sections
[i
];
1124 k
= pe_section_class(s
);
1125 for (n
= i
; n
> 1 && k
< (c
= sec_cls
[n
- 1]); --n
)
1126 sec_cls
[n
] = c
, sec_order
[n
] = sec_order
[n
- 1];
1127 sec_cls
[n
] = k
, sec_order
[n
] = i
;
1130 addr
= pe
->imagebase
+ 1;
1132 for (i
= 1; (c
= sec_cls
[i
]) < sec_last
; ++i
) {
1133 s
= s1
->sections
[sec_order
[i
]];
1135 if (PE_MERGE_DATA
&& c
== sec_bss
)
1138 if (si
&& c
== si
->cls
) {
1139 /* merge with previous section */
1140 s
->sh_addr
= addr
= ((addr
- 1) | (16 - 1)) + 1;
1143 s
->sh_addr
= addr
= pe_virtual_align(pe
, addr
);
1146 if (NULL
== pe
->thunk
1147 && c
== (data_section
== rodata_section
? sec_data
: sec_rdata
))
1150 if (s
== pe
->thunk
) {
1151 pe_build_imports(pe
);
1152 pe_build_exports(pe
);
1155 pe_build_reloc (pe
);
1157 if (0 == s
->data_offset
)
1163 si
= tcc_mallocz(sizeof *si
);
1164 dynarray_add(&pe
->sec_info
, &pe
->sec_count
, si
);
1166 strcpy(si
->name
, s
->name
);
1170 si
->pe_flags
= IMAGE_SCN_MEM_READ
;
1171 if (s
->sh_flags
& SHF_EXECINSTR
)
1172 si
->pe_flags
|= IMAGE_SCN_MEM_EXECUTE
| IMAGE_SCN_CNT_CODE
;
1173 else if (s
->sh_type
== SHT_NOBITS
)
1174 si
->pe_flags
|= IMAGE_SCN_CNT_UNINITIALIZED_DATA
;
1176 si
->pe_flags
|= IMAGE_SCN_CNT_INITIALIZED_DATA
;
1177 if (s
->sh_flags
& SHF_WRITE
)
1178 si
->pe_flags
|= IMAGE_SCN_MEM_WRITE
;
1179 if (0 == (s
->sh_flags
& SHF_ALLOC
))
1180 si
->pe_flags
|= IMAGE_SCN_MEM_DISCARDABLE
;
1183 addr
+= s
->data_offset
;
1184 si
->sh_size
= addr
- si
->sh_addr
;
1185 if (s
->sh_type
!= SHT_NOBITS
) {
1186 Section
**ps
= &si
->sec
;
1189 *ps
= s
, s
->prev
= NULL
;
1190 si
->data_size
= si
->sh_size
;
1192 //printf("%08x %05x %08x %s\n", si->sh_addr, si->sh_size, si->pe_flags, s->name);
1195 for (i
= 1; i
< nbs
; ++i
) {
1196 Section
*s
= s1
->sections
[sec_order
[i
]];
1197 int type
= s
->sh_type
;
1198 int flags
= s
->sh_flags
;
1199 printf("section %-16s %-10s %p %04x %s,%s,%s\n",
1201 type
== SHT_PROGBITS
? "progbits" :
1202 type
== SHT_INIT_ARRAY
? "initarr" :
1203 type
== SHT_FINI_ARRAY
? "finiarr" :
1204 type
== SHT_NOBITS
? "nobits" :
1205 type
== SHT_SYMTAB
? "symtab" :
1206 type
== SHT_STRTAB
? "strtab" :
1207 type
== SHT_RELX
? "rel" : "???",
1209 (unsigned)s
->data_offset
,
1210 flags
& SHF_ALLOC
? "alloc" : "",
1211 flags
& SHF_WRITE
? "write" : "",
1212 flags
& SHF_EXECINSTR
? "exec" : ""
1218 tcc_free(sec_order
);
1222 /*----------------------------------------------------------------------------*/
1224 static int pe_isafunc(TCCState
*s1
, int sym_index
)
1226 Section
*sr
= text_section
->reloc
;
1227 ElfW_Rel
*rel
, *rel_end
;
1228 ElfW(Addr
)info
= ELFW(R_INFO
)(sym_index
, R_XXX_FUNCCALL
);
1229 #ifdef R_XXX_FUNCCALL2
1230 ElfW(Addr
)info2
= ELFW(R_INFO
)(sym_index
, R_XXX_FUNCCALL2
);
1234 rel_end
= (ElfW_Rel
*)(sr
->data
+ sr
->data_offset
);
1235 for (rel
= (ElfW_Rel
*)sr
->data
; rel
< rel_end
; rel
++) {
1236 if (rel
->r_info
== info
)
1238 #ifdef R_XXX_FUNCCALL2
1239 if (rel
->r_info
== info2
)
1246 /*----------------------------------------------------------------------------*/
1247 static int pe_check_symbols(struct pe_info
*pe
)
1250 int sym_index
, sym_end
;
1252 TCCState
*s1
= pe
->s1
;
1254 pe_align_section(text_section
, 8);
1256 sym_end
= symtab_section
->data_offset
/ sizeof(ElfW(Sym
));
1257 for (sym_index
= 1; sym_index
< sym_end
; ++sym_index
) {
1259 sym
= (ElfW(Sym
) *)symtab_section
->data
+ sym_index
;
1260 if (sym
->st_shndx
== SHN_UNDEF
) {
1262 const char *name
= (char*)symtab_section
->link
->data
+ sym
->st_name
;
1263 unsigned type
= ELFW(ST_TYPE
)(sym
->st_info
);
1264 int imp_sym
= pe_find_import(pe
->s1
, sym
);
1265 struct import_symbol
*is
;
1270 if (type
== STT_NOTYPE
) {
1271 /* symbols from assembler have no type, find out which */
1272 if (pe_isafunc(s1
, sym_index
))
1278 is
= pe_add_import(pe
, imp_sym
);
1280 if (type
== STT_FUNC
) {
1281 unsigned offset
= is
->thk_offset
;
1283 /* got aliased symbol, like stricmp and _stricmp */
1288 /* add a helper symbol, will be patched later in
1290 sprintf(buffer
, "IAT.%s", name
);
1291 is
->iat_index
= put_elf_sym(
1292 symtab_section
, 0, sizeof(DWORD
),
1293 ELFW(ST_INFO
)(STB_GLOBAL
, STT_OBJECT
),
1294 0, SHN_UNDEF
, buffer
);
1296 offset
= text_section
->data_offset
;
1297 is
->thk_offset
= offset
;
1299 /* add the 'jmp IAT[x]' instruction */
1300 #ifdef TCC_TARGET_ARM
1301 p
= section_ptr_add(text_section
, 8+4); // room for code and address
1302 write32le(p
+ 0, 0xE59FC000); // arm code ldr ip, [pc] ; PC+8+0 = 0001xxxx
1303 write32le(p
+ 4, 0xE59CF000); // arm code ldr pc, [ip]
1304 put_elf_reloc(symtab_section
, text_section
,
1305 offset
+ 8, R_XXX_THUNKFIX
, is
->iat_index
); // offset to IAT position
1307 p
= section_ptr_add(text_section
, 8);
1308 write16le(p
, 0x25FF);
1309 #ifdef TCC_TARGET_X86_64
1310 write32le(p
+ 2, (DWORD
)-4);
1312 put_elf_reloc(symtab_section
, text_section
,
1313 offset
+ 2, R_XXX_THUNKFIX
, is
->iat_index
);
1316 /* tcc_realloc might have altered sym's address */
1317 sym
= (ElfW(Sym
) *)symtab_section
->data
+ sym_index
;
1319 /* patch the original symbol */
1320 sym
->st_value
= offset
;
1321 sym
->st_shndx
= text_section
->sh_num
;
1322 sym
->st_other
&= ~ST_PE_EXPORT
; /* do not export */
1326 if (type
== STT_OBJECT
) { /* data, ptr to that should be */
1327 if (0 == is
->iat_index
) {
1328 /* original symbol will be patched later in pe_build_imports */
1329 is
->iat_index
= sym_index
;
1335 if (ELFW(ST_BIND
)(sym
->st_info
) == STB_WEAK
)
1336 /* STB_WEAK undefined symbols are accepted */
1338 ret
= tcc_error_noabort("undefined symbol '%s'%s", name
,
1339 imp_sym
< 0 ? ", missing __declspec(dllimport)?":"");
1341 } else if (pe
->s1
->rdynamic
1342 && ELFW(ST_BIND
)(sym
->st_info
) != STB_LOCAL
) {
1343 /* if -rdynamic option, then export all non local symbols */
1344 sym
->st_other
|= ST_PE_EXPORT
;
1350 /*----------------------------------------------------------------------------*/
1351 #if PE_PRINT_SECTIONS
1352 static void pe_print_section(FILE * f
, Section
* s
)
1354 /* just if you're curious */
1358 e
= s
->data
+ s
->data_offset
;
1361 fprintf(f
, "section \"%s\"", s
->name
);
1363 fprintf(f
, "\nlink \"%s\"", s
->link
->name
);
1365 fprintf(f
, "\nreloc \"%s\"", s
->reloc
->name
);
1366 fprintf(f
, "\nv_addr %08X", (unsigned)s
->sh_addr
);
1367 fprintf(f
, "\ncontents %08X", (unsigned)l
);
1370 if (s
->sh_type
== SHT_NOBITS
)
1376 if (s
->sh_type
== SHT_SYMTAB
)
1377 m
= sizeof(ElfW(Sym
));
1378 else if (s
->sh_type
== SHT_RELX
)
1379 m
= sizeof(ElfW_Rel
);
1383 fprintf(f
, "%-8s", "offset");
1384 for (i
= 0; i
< m
; ++i
)
1385 fprintf(f
, " %02x", i
);
1388 if (s
->sh_type
== SHT_SYMTAB
|| s
->sh_type
== SHT_RELX
) {
1389 const char *fields1
[] = {
1400 const char *fields2
[] = {
1409 if (s
->sh_type
== SHT_SYMTAB
)
1410 p
= fields1
, n
= 106;
1412 p
= fields2
, n
= 58;
1414 for (i
= 0; p
[i
]; ++i
)
1415 fprintf(f
, "%6s", p
[i
]);
1416 fprintf(f
, " symbol");
1420 for (i
= 0; i
< n
; ++i
)
1426 fprintf(f
, "%08X", i
);
1427 for (n
= 0; n
< m
; ++n
) {
1429 fprintf(f
, " %02X", p
[i
+ n
]);
1434 if (s
->sh_type
== SHT_SYMTAB
) {
1435 ElfW(Sym
) *sym
= (ElfW(Sym
) *) (p
+ i
);
1436 const char *name
= s
->link
->data
+ sym
->st_name
;
1437 fprintf(f
, " %04X %04X %04X %02X %02X %02X %04X \"%s\"",
1438 (unsigned)sym
->st_name
,
1439 (unsigned)sym
->st_value
,
1440 (unsigned)sym
->st_size
,
1441 (unsigned)ELFW(ST_BIND
)(sym
->st_info
),
1442 (unsigned)ELFW(ST_TYPE
)(sym
->st_info
),
1443 (unsigned)sym
->st_other
,
1444 (unsigned)sym
->st_shndx
,
1447 } else if (s
->sh_type
== SHT_RELX
) {
1448 ElfW_Rel
*rel
= (ElfW_Rel
*) (p
+ i
);
1450 (ElfW(Sym
) *) s
->link
->data
+ ELFW(R_SYM
)(rel
->r_info
);
1451 const char *name
= s
->link
->link
->data
+ sym
->st_name
;
1452 fprintf(f
, " %04X %02X %04X \"%s\"",
1453 (unsigned)rel
->r_offset
,
1454 (unsigned)ELFW(R_TYPE
)(rel
->r_info
),
1455 (unsigned)ELFW(R_SYM
)(rel
->r_info
),
1459 for (n
= 0; n
< m
; ++n
) {
1462 if (b
< 32 || b
>= 127)
1464 fprintf(f
, "%c", b
);
1474 static void pe_print_sections(TCCState
*s1
, const char *fname
)
1479 f
= fopen(fname
, "w");
1480 for (i
= 1; i
< s1
->nb_sections
; ++i
) {
1481 s
= s1
->sections
[i
];
1482 pe_print_section(f
, s
);
1484 pe_print_section(f
, s1
->dynsymtab_section
);
1489 /* ------------------------------------------------------------- */
1490 /* helper function for load/store to insert one more indirection */
1492 #if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
1493 ST_FUNC SValue
*pe_getimport(SValue
*sv
, SValue
*v2
)
1496 if ((sv
->r
& (VT_VALMASK
|VT_SYM
)) != (VT_CONST
|VT_SYM
) || (sv
->r2
!= VT_CONST
))
1498 if (!sv
->sym
->a
.dllimport
)
1500 // printf("import %04x %04x %04x %s\n", sv->type.t, sv->sym->type.t, sv->r, get_tok_str(sv->sym->v, NULL));
1501 memset(v2
, 0, sizeof *v2
);
1502 v2
->type
.t
= VT_PTR
;
1503 v2
->r
= VT_CONST
| VT_SYM
| VT_LVAL
;
1506 r2
= get_reg(RC_INT
);
1509 if ((uint32_t)sv
->c
.i
) {
1515 v2
->type
.t
= sv
->type
.t
;
1516 v2
->r
|= sv
->r
& VT_LVAL
;
1521 ST_FUNC
int pe_putimport(TCCState
*s1
, int dllindex
, const char *name
, addr_t value
)
1524 s1
->dynsymtab_section
,
1526 dllindex
, /* st_size */
1527 ELFW(ST_INFO
)(STB_GLOBAL
, STT_NOTYPE
),
1529 value
? SHN_ABS
: SHN_UNDEF
,
1534 static int read_mem(int fd
, unsigned offset
, void *buffer
, unsigned len
)
1536 lseek(fd
, offset
, SEEK_SET
);
1537 return len
== read(fd
, buffer
, len
);
1540 /* ------------------------------------------------------------- */
1542 static int get_dllexports(int fd
, char **pp
)
1544 int l
, i
, n
, n0
, ret
;
1547 IMAGE_SECTION_HEADER ish
;
1548 IMAGE_EXPORT_DIRECTORY ied
;
1549 IMAGE_DOS_HEADER dh
;
1550 IMAGE_FILE_HEADER ih
;
1551 DWORD sig
, ref
, addr
, ptr
, namep
;
1553 int pef_hdroffset
, opt_hdroffset
, sec_hdroffset
;
1558 if (!read_mem(fd
, 0, &dh
, sizeof dh
))
1560 if (!read_mem(fd
, dh
.e_lfanew
, &sig
, sizeof sig
))
1562 if (sig
!= 0x00004550)
1564 pef_hdroffset
= dh
.e_lfanew
+ sizeof sig
;
1565 if (!read_mem(fd
, pef_hdroffset
, &ih
, sizeof ih
))
1567 opt_hdroffset
= pef_hdroffset
+ sizeof ih
;
1568 if (ih
.Machine
== 0x014C) {
1569 IMAGE_OPTIONAL_HEADER32 oh
;
1570 sec_hdroffset
= opt_hdroffset
+ sizeof oh
;
1571 if (!read_mem(fd
, opt_hdroffset
, &oh
, sizeof oh
))
1573 if (IMAGE_DIRECTORY_ENTRY_EXPORT
>= oh
.NumberOfRvaAndSizes
)
1575 addr
= oh
.DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].VirtualAddress
;
1576 } else if (ih
.Machine
== 0x8664) {
1577 IMAGE_OPTIONAL_HEADER64 oh
;
1578 sec_hdroffset
= opt_hdroffset
+ sizeof oh
;
1579 if (!read_mem(fd
, opt_hdroffset
, &oh
, sizeof oh
))
1581 if (IMAGE_DIRECTORY_ENTRY_EXPORT
>= oh
.NumberOfRvaAndSizes
)
1583 addr
= oh
.DataDirectory
[IMAGE_DIRECTORY_ENTRY_EXPORT
].VirtualAddress
;
1587 //printf("addr: %08x\n", addr);
1588 for (i
= 0; i
< ih
.NumberOfSections
; ++i
) {
1589 if (!read_mem(fd
, sec_hdroffset
+ i
* sizeof ish
, &ish
, sizeof ish
))
1591 //printf("vaddr: %08x\n", ish.VirtualAddress);
1592 if (addr
>= ish
.VirtualAddress
&& addr
< ish
.VirtualAddress
+ ish
.SizeOfRawData
)
1598 ref
= ish
.VirtualAddress
- ish
.PointerToRawData
;
1599 if (!read_mem(fd
, addr
- ref
, &ied
, sizeof ied
))
1602 namep
= ied
.AddressOfNames
- ref
;
1603 for (i
= 0; i
< ied
.NumberOfNames
; ++i
) {
1604 if (!read_mem(fd
, namep
, &ptr
, sizeof ptr
))
1606 namep
+= sizeof ptr
;
1609 p
= tcc_realloc(p
, n0
= n0
? n0
* 2 : 256);
1610 if (!read_mem(fd
, ptr
- ref
+ l
++, p
+ n
, 1)) {
1611 tcc_free(p
), p
= NULL
;
1627 /* -------------------------------------------------------------
1628 * This is for compiled windows resources in 'coff' format
1629 * as generated by 'windres.exe -O coff ...'.
1632 static int pe_load_res(TCCState
*s1
, int fd
)
1634 struct pe_rsrc_header hdr
;
1635 Section
*rsrc_section
;
1636 int i
, ret
= -1, sym_index
;
1640 if (!read_mem(fd
, 0, &hdr
, sizeof hdr
))
1643 if (hdr
.filehdr
.Machine
!= IMAGE_FILE_MACHINE
1644 || hdr
.filehdr
.NumberOfSections
!= 1
1645 || strcmp((char*)hdr
.sectionhdr
.Name
, ".rsrc") != 0)
1648 rsrc_section
= new_section(s1
, ".rsrc", SHT_PROGBITS
, SHF_ALLOC
);
1649 ptr
= section_ptr_add(rsrc_section
, hdr
.sectionhdr
.SizeOfRawData
);
1650 offs
= hdr
.sectionhdr
.PointerToRawData
;
1651 if (!read_mem(fd
, offs
, ptr
, hdr
.sectionhdr
.SizeOfRawData
))
1653 offs
= hdr
.sectionhdr
.PointerToRelocations
;
1654 sym_index
= put_elf_sym(symtab_section
, 0, 0, 0, 0, rsrc_section
->sh_num
, ".rsrc");
1655 for (i
= 0; i
< hdr
.sectionhdr
.NumberOfRelocations
; ++i
) {
1656 struct pe_rsrc_reloc rel
;
1657 if (!read_mem(fd
, offs
, &rel
, sizeof rel
))
1659 // printf("rsrc_reloc: %x %x %x\n", rel.offset, rel.size, rel.type);
1660 if (rel
.type
!= RSRC_RELTYPE
)
1662 put_elf_reloc(symtab_section
, rsrc_section
,
1663 rel
.offset
, R_XXX_RELATIVE
, sym_index
);
1671 /* ------------------------------------------------------------- */
1673 static char *trimfront(char *p
)
1675 while ((unsigned char)*p
<= ' ' && *p
&& *p
!= '\n')
1681 static char *trimback(char *a, char *e)
1683 while (e > a && (unsigned char)e[-1] <= ' ')
1689 static char *get_token(char **s
, char *f
)
1692 p
= e
= trimfront(p
);
1693 while ((unsigned char)*e
> ' ')
1700 static int pe_load_def(TCCState
*s1
, int fd
)
1702 int state
= 0, ret
= -1, dllindex
= 0, ord
;
1703 char dllname
[80], *buf
, *line
, *p
, *x
, next
;
1705 buf
= tcc_load_text(fd
);
1706 for (line
= buf
;; ++line
) {
1707 p
= get_token(&line
, &next
);
1708 if (!(*p
&& *p
!= ';'))
1712 if (0 != stricmp(p
, "LIBRARY") || next
== '\n')
1714 pstrcpy(dllname
, sizeof dllname
, get_token(&line
, &next
));
1718 if (0 != stricmp(p
, "EXPORTS"))
1723 dllindex
= tcc_add_dllref(s1
, dllname
, 0)->index
;
1727 /* get ordinal and will store in sym->st_value */
1730 x
= get_token(&line
, &next
);
1731 ord
= (int)strtol(x
+ 1, &x
, 10);
1733 //printf("token %s ; %s : %d\n", dllname, p, ord);
1734 pe_putimport(s1
, dllindex
, p
, ord
);
1738 while ((unsigned char)next
> ' ')
1739 get_token(&line
, &next
);
1749 /* ------------------------------------------------------------- */
1751 static int pe_load_dll(TCCState
*s1
, int fd
, const char *filename
)
1756 ret
= get_dllexports(fd
, &p
);
1760 index
= tcc_add_dllref(s1
, filename
, 0)->index
;
1761 for (q
= p
; *q
; q
+= 1 + strlen(q
))
1762 pe_putimport(s1
, index
, q
, 0);
1768 ST_FUNC
int pe_load_file(struct TCCState
*s1
, int fd
, const char *filename
)
1772 if (0 == strcmp(tcc_fileextension(filename
), ".def"))
1773 ret
= pe_load_def(s1
, fd
);
1774 else if (pe_load_res(s1
, fd
) == 0)
1776 else if (read_mem(fd
, 0, buf
, 4) && 0 == memcmp(buf
, "MZ", 2))
1777 ret
= pe_load_dll(s1
, fd
, filename
);
1781 PUB_FUNC
int tcc_get_dllexports(const char *filename
, char **pp
)
1783 int ret
, fd
= open(filename
, O_RDONLY
| O_BINARY
);
1786 ret
= get_dllexports(fd
, pp
);
1791 /* ------------------------------------------------------------- */
1792 #ifdef TCC_TARGET_X86_64
1793 static unsigned pe_add_uwwind_info(TCCState
*s1
)
1795 if (NULL
== s1
->uw_pdata
) {
1796 s1
->uw_pdata
= find_section(s1
, ".pdata");
1797 s1
->uw_pdata
->sh_addralign
= 4;
1799 if (0 == s1
->uw_sym
)
1800 s1
->uw_sym
= put_elf_sym(symtab_section
, 0, 0, 0, 0, text_section
->sh_num
, ".uw_base");
1801 if (0 == s1
->uw_offs
) {
1802 /* As our functions all have the same stackframe, we use one entry for all */
1803 static const unsigned char uw_info
[] = {
1804 0x01, // UBYTE: 3 Version , UBYTE: 5 Flags
1805 0x04, // UBYTE Size of prolog
1806 0x02, // UBYTE Count of unwind codes
1807 0x05, // UBYTE: 4 Frame Register (rbp), UBYTE: 4 Frame Register offset (scaled)
1808 // USHORT * n Unwind codes array
1809 // 0x0b, 0x01, 0xff, 0xff, // stack size
1810 0x04, 0x03, // set frame ptr (mov rsp -> rbp)
1811 0x01, 0x50 // push reg (rbp)
1814 Section
*s
= text_section
;
1817 section_ptr_add(s
, -s
->data_offset
& 3); /* align */
1818 s1
->uw_offs
= s
->data_offset
;
1819 p
= section_ptr_add(s
, sizeof uw_info
);
1820 memcpy(p
, uw_info
, sizeof uw_info
);
1826 ST_FUNC
void pe_add_unwind_data(unsigned start
, unsigned end
, unsigned stack
)
1828 TCCState
*s1
= tcc_state
;
1831 struct /* _RUNTIME_FUNCTION */ {
1837 d
= pe_add_uwwind_info(s1
);
1839 o
= pd
->data_offset
;
1840 p
= section_ptr_add(pd
, sizeof *p
);
1842 /* record this function */
1843 p
->BeginAddress
= start
;
1844 p
->EndAddress
= end
;
1847 /* put relocations on it */
1848 for (n
= o
+ sizeof *p
; o
< n
; o
+= sizeof p
->BeginAddress
)
1849 put_elf_reloc(symtab_section
, pd
, o
, R_XXX_RELATIVE
, s1
->uw_sym
);
1852 /* ------------------------------------------------------------- */
1853 #ifdef TCC_TARGET_X86_64
1854 #define PE_STDSYM(n,s) n
1856 #define PE_STDSYM(n,s) "_" n s
1859 static void pe_add_runtime(TCCState
*s1
, struct pe_info
*pe
)
1861 const char *start_symbol
;
1864 if (TCC_OUTPUT_DLL
== s1
->output_type
) {
1866 start_symbol
= PE_STDSYM("__dllstart","@12");
1868 const char *run_symbol
;
1869 if (find_elf_sym(symtab_section
, PE_STDSYM("WinMain","@16"))) {
1870 start_symbol
= "__winstart";
1871 run_symbol
= "__runwinmain";
1873 } else if (find_elf_sym(symtab_section
, PE_STDSYM("wWinMain","@16"))) {
1874 start_symbol
= "__wwinstart";
1875 run_symbol
= "__runwwinmain";
1877 } else if (find_elf_sym(symtab_section
, "wmain")) {
1878 start_symbol
= "__wstart";
1879 run_symbol
= "__runwmain";
1882 start_symbol
= "__start";
1883 run_symbol
= "__runmain";
1887 if (TCC_OUTPUT_MEMORY
== s1
->output_type
)
1888 start_symbol
= run_symbol
;
1891 pe
->start_symbol
= start_symbol
+ 1;
1892 if (!s1
->leading_underscore
|| strchr(start_symbol
, '@'))
1895 #ifdef CONFIG_TCC_BACKTRACE
1896 if (s1
->do_backtrace
) {
1897 #ifdef CONFIG_TCC_BCHECK
1898 if (s1
->do_bounds_check
&& s1
->output_type
!= TCC_OUTPUT_DLL
)
1899 tcc_add_support(s1
, "bcheck.o");
1901 if (s1
->output_type
== TCC_OUTPUT_EXE
)
1902 tcc_add_support(s1
, "bt-exe.o");
1903 if (s1
->output_type
== TCC_OUTPUT_DLL
)
1904 tcc_add_support(s1
, "bt-dll.o");
1905 if (s1
->output_type
!= TCC_OUTPUT_DLL
)
1906 tcc_add_support(s1
, "bt-log.o");
1907 if (s1
->output_type
!= TCC_OUTPUT_MEMORY
)
1912 /* grab the startup code from libtcc1.a */
1913 #ifdef TCC_IS_NATIVE
1914 if (TCC_OUTPUT_MEMORY
!= s1
->output_type
|| s1
->runtime_main
)
1916 set_global_sym(s1
, start_symbol
, NULL
, 0);
1918 if (0 == s1
->nostdlib
) {
1919 static const char * const libs
[] = {
1920 "msvcrt", "kernel32", "", "user32", "gdi32", NULL
1922 const char * const *pp
, *p
;
1924 tcc_add_support(s1
, TCC_LIBTCC1
);
1925 for (pp
= libs
; 0 != (p
= *pp
); ++pp
) {
1927 tcc_add_library_err(s1
, p
);
1928 else if (PE_DLL
!= pe_type
&& PE_GUI
!= pe_type
)
1933 /* need this for 'tccelf.c:relocate_sections()' */
1934 if (TCC_OUTPUT_DLL
== s1
->output_type
)
1935 s1
->output_type
= TCC_OUTPUT_EXE
;
1936 if (TCC_OUTPUT_MEMORY
== s1
->output_type
)
1941 static void pe_set_options(TCCState
* s1
, struct pe_info
*pe
)
1943 if (PE_DLL
== pe
->type
) {
1944 /* XXX: check if is correct for arm-pe target */
1945 pe
->imagebase
= 0x10000000;
1947 #if defined(TCC_TARGET_ARM)
1948 pe
->imagebase
= 0x00010000;
1950 pe
->imagebase
= 0x00400000;
1954 #if defined(TCC_TARGET_ARM)
1955 /* we use "console" subsystem by default */
1958 if (PE_DLL
== pe
->type
|| PE_GUI
== pe
->type
)
1963 /* Allow override via -Wl,-subsystem=... option */
1964 if (s1
->pe_subsystem
!= 0)
1965 pe
->subsystem
= s1
->pe_subsystem
;
1967 /* set default file/section alignment */
1968 if (pe
->subsystem
== 1) {
1969 pe
->section_align
= 0x20;
1970 pe
->file_align
= 0x20;
1972 pe
->section_align
= 0x1000;
1973 pe
->file_align
= 0x200;
1976 if (s1
->section_align
!= 0)
1977 pe
->section_align
= s1
->section_align
;
1978 if (s1
->pe_file_align
!= 0)
1979 pe
->file_align
= s1
->pe_file_align
;
1981 if ((pe
->subsystem
>= 10) && (pe
->subsystem
<= 12))
1984 if (s1
->has_text_addr
)
1985 pe
->imagebase
= s1
->text_addr
;
1988 ST_FUNC
int pe_output_file(TCCState
*s1
, const char *filename
)
1992 memset(&pe
, 0, sizeof pe
);
1993 pe
.filename
= filename
;
1997 #ifdef CONFIG_TCC_BCHECK
2000 tcc_add_pragma_libs(s1
);
2001 pe_add_runtime(s1
, &pe
);
2002 resolve_common_syms(s1
);
2003 pe_set_options(s1
, &pe
);
2004 pe_check_symbols(&pe
);
2008 else if (filename
) {
2009 pe_assign_addresses(&pe
);
2010 relocate_syms(s1
, s1
->symtab
, 0);
2011 s1
->pe_imagebase
= pe
.imagebase
;
2012 relocate_sections(s1
);
2013 pe
.start_addr
= (DWORD
)
2014 (get_sym_addr(s1
, pe
.start_symbol
, 1, 1) - pe
.imagebase
);
2015 if (0 == s1
->nb_errors
)
2017 dynarray_reset(&pe
.sec_info
, &pe
.sec_count
);
2019 #ifdef TCC_IS_NATIVE
2020 pe
.thunk
= data_section
;
2021 pe_build_imports(&pe
);
2022 s1
->runtime_main
= pe
.start_symbol
;
2023 #ifdef TCC_TARGET_X86_64
2024 s1
->uw_pdata
= find_section(s1
, ".pdata");
2028 pe_free_imports(&pe
);
2029 #if PE_PRINT_SECTIONS
2030 if (s1
->g_debug
& 8)
2031 pe_print_sections(s1
, "tcc.log");
2033 return s1
->nb_errors
? -1 : 0;
2036 /* ------------------------------------------------------------- */