From e900dd8d6f2ff7cef66fbd31898d375b71ef53d6 Mon Sep 17 00:00:00 2001 From: pommicket Date: Thu, 17 Feb 2022 13:22:13 -0500 Subject: procuding a (non-working) executable for tcc --- 05/tcc-0.9.25/tccpe.c | 1559 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1559 insertions(+) create mode 100644 05/tcc-0.9.25/tccpe.c (limited to '05/tcc-0.9.25/tccpe.c') diff --git a/05/tcc-0.9.25/tccpe.c b/05/tcc-0.9.25/tccpe.c new file mode 100644 index 0000000..1e3fdb3 --- /dev/null +++ b/05/tcc-0.9.25/tccpe.c @@ -0,0 +1,1559 @@ +/* + * TCCPE.C - PE file output for the Tiny C Compiler + * + * Copyright (c) 2005-2007 grischka + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifdef TCC_TARGET_PE + +#define ST_FN static +#define ST_DATA static +#define PUB_FN + +#ifndef _WIN32 +#define stricmp strcasecmp +#define strnicmp strncasecmp +#endif + +#ifndef MAX_PATH +#define MAX_PATH 260 +#endif + +#define PE_MERGE_DATA +// #define PE_PRINT_SECTIONS + +/* ----------------------------------------------------------- */ +#ifndef IMAGE_NT_SIGNATURE +/* ----------------------------------------------------------- */ +/* definitions below are from winnt.h */ + +typedef unsigned char BYTE; +typedef unsigned short WORD; +typedef unsigned long DWORD; +#pragma pack(push, 1) + +typedef struct _IMAGE_DOS_HEADER { /* DOS .EXE header */ + WORD e_magic; /* Magic number */ + WORD e_cblp; /* Bytes on last page of file */ + WORD e_cp; /* Pages in file */ + WORD e_crlc; /* Relocations */ + WORD e_cparhdr; /* Size of header in paragraphs */ + WORD e_minalloc; /* Minimum extra paragraphs needed */ + WORD e_maxalloc; /* Maximum extra paragraphs needed */ + WORD e_ss; /* Initial (relative) SS value */ + WORD e_sp; /* Initial SP value */ + WORD e_csum; /* Checksum */ + WORD e_ip; /* Initial IP value */ + WORD e_cs; /* Initial (relative) CS value */ + WORD e_lfarlc; /* File address of relocation table */ + WORD e_ovno; /* Overlay number */ + WORD e_res[4]; /* Reserved words */ + WORD e_oemid; /* OEM identifier (for e_oeminfo) */ + WORD e_oeminfo; /* OEM information; e_oemid specific */ + WORD e_res2[10]; /* Reserved words */ + DWORD e_lfanew; /* File address of new exe header */ +} IMAGE_DOS_HEADER, *PIMAGE_DOS_HEADER; + +#define IMAGE_NT_SIGNATURE 0x00004550 /* PE00 */ +#define SIZE_OF_NT_SIGNATURE 4 + +typedef struct _IMAGE_FILE_HEADER { + WORD Machine; + WORD NumberOfSections; + DWORD TimeDateStamp; + DWORD PointerToSymbolTable; + DWORD NumberOfSymbols; + WORD SizeOfOptionalHeader; + WORD Characteristics; +} IMAGE_FILE_HEADER, *PIMAGE_FILE_HEADER; + + +#define IMAGE_SIZEOF_FILE_HEADER 20 + +typedef struct _IMAGE_DATA_DIRECTORY { + DWORD VirtualAddress; + DWORD Size; +} IMAGE_DATA_DIRECTORY, *PIMAGE_DATA_DIRECTORY; + + +typedef struct _IMAGE_OPTIONAL_HEADER { + /* Standard fields. */ + WORD Magic; + BYTE MajorLinkerVersion; + BYTE MinorLinkerVersion; + DWORD SizeOfCode; + DWORD SizeOfInitializedData; + DWORD SizeOfUninitializedData; + DWORD AddressOfEntryPoint; + DWORD BaseOfCode; + DWORD BaseOfData; + + /* NT additional fields. */ + DWORD ImageBase; + DWORD SectionAlignment; + DWORD FileAlignment; + WORD MajorOperatingSystemVersion; + WORD MinorOperatingSystemVersion; + WORD MajorImageVersion; + WORD MinorImageVersion; + WORD MajorSubsystemVersion; + WORD MinorSubsystemVersion; + DWORD Win32VersionValue; + DWORD SizeOfImage; + DWORD SizeOfHeaders; + DWORD CheckSum; + WORD Subsystem; + WORD DllCharacteristics; + DWORD SizeOfStackReserve; + DWORD SizeOfStackCommit; + DWORD SizeOfHeapReserve; + DWORD SizeOfHeapCommit; + DWORD LoaderFlags; + DWORD NumberOfRvaAndSizes; + IMAGE_DATA_DIRECTORY DataDirectory[16]; + +} IMAGE_OPTIONAL_HEADER, *PIMAGE_OPTIONAL_HEADER; + + +#define IMAGE_DIRECTORY_ENTRY_EXPORT 0 /* Export Directory */ +#define IMAGE_DIRECTORY_ENTRY_IMPORT 1 /* Import Directory */ +#define IMAGE_DIRECTORY_ENTRY_RESOURCE 2 /* Resource Directory */ +#define IMAGE_DIRECTORY_ENTRY_EXCEPTION 3 /* Exception Directory */ +#define IMAGE_DIRECTORY_ENTRY_SECURITY 4 /* Security Directory */ +#define IMAGE_DIRECTORY_ENTRY_BASERELOC 5 /* Base Relocation Table */ +#define IMAGE_DIRECTORY_ENTRY_DEBUG 6 /* Debug Directory */ +/* IMAGE_DIRECTORY_ENTRY_COPYRIGHT 7 (X86 usage) */ +#define IMAGE_DIRECTORY_ENTRY_ARCHITECTURE 7 /* Architecture Specific Data */ +#define IMAGE_DIRECTORY_ENTRY_GLOBALPTR 8 /* RVA of GP */ +#define IMAGE_DIRECTORY_ENTRY_TLS 9 /* TLS Directory */ +#define IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG 10 /* Load Configuration Directory */ +#define IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT 11 /* Bound Import Directory in headers */ +#define IMAGE_DIRECTORY_ENTRY_IAT 12 /* Import Address Table */ +#define IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT 13 /* Delay Load Import Descriptors */ +#define IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR 14 /* COM Runtime descriptor */ + +/* Section header format. */ +#define IMAGE_SIZEOF_SHORT_NAME 8 + +typedef struct _IMAGE_SECTION_HEADER { + BYTE Name[IMAGE_SIZEOF_SHORT_NAME]; + union { + DWORD PhysicalAddress; + DWORD VirtualSize; + } Misc; + DWORD VirtualAddress; + DWORD SizeOfRawData; + DWORD PointerToRawData; + DWORD PointerToRelocations; + DWORD PointerToLinenumbers; + WORD NumberOfRelocations; + WORD NumberOfLinenumbers; + DWORD Characteristics; +} IMAGE_SECTION_HEADER, *PIMAGE_SECTION_HEADER; + +#define IMAGE_SIZEOF_SECTION_HEADER 40 + +typedef struct _IMAGE_BASE_RELOCATION { + DWORD VirtualAddress; + DWORD SizeOfBlock; +// WORD TypeOffset[1]; +} IMAGE_BASE_RELOCATION; + +#define IMAGE_SIZEOF_BASE_RELOCATION 8 + +#define IMAGE_REL_BASED_ABSOLUTE 0 +#define IMAGE_REL_BASED_HIGH 1 +#define IMAGE_REL_BASED_LOW 2 +#define IMAGE_REL_BASED_HIGHLOW 3 +#define IMAGE_REL_BASED_HIGHADJ 4 +#define IMAGE_REL_BASED_MIPS_JMPADDR 5 +#define IMAGE_REL_BASED_SECTION 6 +#define IMAGE_REL_BASED_REL32 7 + +#pragma pack(pop) + +/* ----------------------------------------------------------- */ +#endif /* ndef IMAGE_NT_SIGNATURE */ +/* ----------------------------------------------------------- */ + +#pragma pack(push, 1) + +struct pe_header +{ + IMAGE_DOS_HEADER doshdr; + BYTE dosstub[0x40]; + DWORD nt_sig; + IMAGE_FILE_HEADER filehdr; + IMAGE_OPTIONAL_HEADER opthdr; +}; + +struct pe_import_header { + DWORD first_entry; + DWORD time_date; + DWORD forwarder; + DWORD lib_name_offset; + DWORD first_thunk; +}; + +struct pe_export_header { + DWORD Characteristics; + DWORD TimeDateStamp; + DWORD Version; + DWORD Name; + DWORD Base; + DWORD NumberOfFunctions; + DWORD NumberOfNames; + DWORD AddressOfFunctions; + DWORD AddressOfNames; + DWORD AddressOfNameOrdinals; +}; + +struct pe_reloc_header { + DWORD offset; + DWORD size; +}; + +struct pe_rsrc_header { + struct _IMAGE_FILE_HEADER filehdr; + struct _IMAGE_SECTION_HEADER sectionhdr; +}; + +struct pe_rsrc_reloc { + DWORD offset; + DWORD size; + WORD type; +}; + +#pragma pack(pop) + +/* ----------------------------------------------------------- */ +ST_DATA struct pe_header pe_header = { +{ + /* IMAGE_DOS_HEADER doshdr */ + 0x5A4D, /*WORD e_magic; Magic number */ + 0x0090, /*WORD e_cblp; Bytes on last page of file */ + 0x0003, /*WORD e_cp; Pages in file */ + 0x0000, /*WORD e_crlc; Relocations */ + + 0x0004, /*WORD e_cparhdr; Size of header in paragraphs */ + 0x0000, /*WORD e_minalloc; Minimum extra paragraphs needed */ + 0xFFFF, /*WORD e_maxalloc; Maximum extra paragraphs needed */ + 0x0000, /*WORD e_ss; Initial (relative) SS value */ + + 0x00B8, /*WORD e_sp; Initial SP value */ + 0x0000, /*WORD e_csum; Checksum */ + 0x0000, /*WORD e_ip; Initial IP value */ + 0x0000, /*WORD e_cs; Initial (relative) CS value */ + 0x0040, /*WORD e_lfarlc; File address of relocation table */ + 0x0000, /*WORD e_ovno; Overlay number */ + {0,0,0,0}, /*WORD e_res[4]; Reserved words */ + 0x0000, /*WORD e_oemid; OEM identifier (for e_oeminfo) */ + 0x0000, /*WORD e_oeminfo; OEM information; e_oemid specific */ + {0,0,0,0,0,0,0,0,0,0}, /*WORD e_res2[10]; Reserved words */ + 0x00000080 /*DWORD e_lfanew; File address of new exe header */ +},{ + /* BYTE dosstub[0x40] */ + /* 14 code bytes + "This program cannot be run in DOS mode.\r\r\n$" + 6 * 0x00 */ + 0x0e,0x1f,0xba,0x0e,0x00,0xb4,0x09,0xcd,0x21,0xb8,0x01,0x4c,0xcd,0x21,0x54,0x68, + 0x69,0x73,0x20,0x70,0x72,0x6f,0x67,0x72,0x61,0x6d,0x20,0x63,0x61,0x6e,0x6e,0x6f, + 0x74,0x20,0x62,0x65,0x20,0x72,0x75,0x6e,0x20,0x69,0x6e,0x20,0x44,0x4f,0x53,0x20, + 0x6d,0x6f,0x64,0x65,0x2e,0x0d,0x0d,0x0a,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00, +}, + 0x00004550, /* DWORD nt_sig = IMAGE_NT_SIGNATURE */ +{ + /* IMAGE_FILE_HEADER filehdr */ + 0x014C, /*WORD Machine; */ + 0x0003, /*WORD NumberOfSections; */ + 0x00000000, /*DWORD TimeDateStamp; */ + 0x00000000, /*DWORD PointerToSymbolTable; */ + 0x00000000, /*DWORD NumberOfSymbols; */ + 0x00E0, /*WORD SizeOfOptionalHeader; */ + 0x030F /*WORD Characteristics; */ +},{ + /* IMAGE_OPTIONAL_HEADER opthdr */ + /* Standard fields. */ + 0x010B, /*WORD Magic; */ + 0x06, /*BYTE MajorLinkerVersion; */ + 0x00, /*BYTE MinorLinkerVersion; */ + 0x00000000, /*DWORD SizeOfCode; */ + 0x00000000, /*DWORD SizeOfInitializedData; */ + 0x00000000, /*DWORD SizeOfUninitializedData; */ + 0x00000000, /*DWORD AddressOfEntryPoint; */ + 0x00000000, /*DWORD BaseOfCode; */ + 0x00000000, /*DWORD BaseOfData; */ + + /* NT additional fields. */ + 0x00400000, /*DWORD ImageBase; */ + 0x00001000, /*DWORD SectionAlignment; */ + 0x00000200, /*DWORD FileAlignment; */ + 0x0004, /*WORD MajorOperatingSystemVersion; */ + 0x0000, /*WORD MinorOperatingSystemVersion; */ + 0x0000, /*WORD MajorImageVersion; */ + 0x0000, /*WORD MinorImageVersion; */ + 0x0004, /*WORD MajorSubsystemVersion; */ + 0x0000, /*WORD MinorSubsystemVersion; */ + 0x00000000, /*DWORD Win32VersionValue; */ + 0x00000000, /*DWORD SizeOfImage; */ + 0x00000200, /*DWORD SizeOfHeaders; */ + 0x00000000, /*DWORD CheckSum; */ + 0x0002, /*WORD Subsystem; */ + 0x0000, /*WORD DllCharacteristics; */ + 0x00100000, /*DWORD SizeOfStackReserve; */ + 0x00001000, /*DWORD SizeOfStackCommit; */ + 0x00100000, /*DWORD SizeOfHeapReserve; */ + 0x00001000, /*DWORD SizeOfHeapCommit; */ + 0x00000000, /*DWORD LoaderFlags; */ + 0x00000010, /*DWORD NumberOfRvaAndSizes; */ + + /* IMAGE_DATA_DIRECTORY DataDirectory[16]; */ + {{0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, + {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}, {0,0}} +}}; + +/* ------------------------------------------------------------- */ +/* internal temporary structures */ + +/* +#define IMAGE_SCN_CNT_CODE 0x00000020 +#define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040 +#define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080 +#define IMAGE_SCN_MEM_DISCARDABLE 0x02000000 +#define IMAGE_SCN_MEM_SHARED 0x10000000 +#define IMAGE_SCN_MEM_EXECUTE 0x20000000 +#define IMAGE_SCN_MEM_READ 0x40000000 +#define IMAGE_SCN_MEM_WRITE 0x80000000 +*/ + +enum { + sec_text = 0, + sec_data , + sec_bss , + sec_idata , + sec_other , + sec_rsrc , + sec_stab , + sec_reloc , + sec_last +}; + +ST_DATA DWORD pe_sec_flags[] = { + 0x60000020, /* ".text" , */ + 0xC0000040, /* ".data" , */ + 0xC0000080, /* ".bss" , */ + 0x40000040, /* ".idata" , */ + 0xE0000060, /* < other > , */ + 0x40000040, /* ".rsrc" , */ + 0x42000802, /* ".stab" , */ + 0x42000040, /* ".reloc" , */ +}; + +struct section_info { + int cls, ord; + char name[32]; + DWORD sh_addr; + DWORD sh_size; + DWORD sh_flags; + unsigned char *data; + DWORD data_size; + IMAGE_SECTION_HEADER ish; +}; + +struct import_symbol { + int sym_index; + int iat_index; + int thk_offset; +}; + +struct pe_import_info { + int dll_index; + int sym_count; + struct import_symbol **symbols; +}; + +struct pe_info { + TCCState *s1; + Section *reloc; + Section *thunk; + const char *filename; + int type; + DWORD sizeofheaders; + DWORD imagebase; + DWORD start_addr; + DWORD imp_offs; + DWORD imp_size; + DWORD iat_offs; + DWORD iat_size; + DWORD exp_offs; + DWORD exp_size; + struct section_info *sec_info; + int sec_count; + struct pe_import_info **imp_info; + int imp_count; +}; + +/* ------------------------------------------------------------- */ + +#define PE_NUL 0 +#define PE_DLL 1 +#define PE_GUI 2 +#define PE_EXE 3 + +void error_noabort(const char *, ...); + +#ifdef _WIN32 +void dbg_printf (const char *fmt, ...) +{ + char buffer[4000]; + va_list arg; + int x; + va_start(arg, fmt); + x = vsprintf (buffer, fmt, arg); + strcpy(buffer+x, "\n"); + OutputDebugString(buffer); +} +#endif + +/* --------------------------------------------*/ + +ST_FN const char* get_alt_symbol(char *buffer, const char *symbol) +{ + const char *p; + p = strrchr(symbol, '@'); + if (p && isnum(p[1]) && symbol[0] == '_') { /* stdcall decor */ + strcpy(buffer, symbol+1)[p-symbol-1] = 0; + } else if (symbol[0] != '_') { /* try non-ansi function */ + buffer[0] = '_', strcpy(buffer + 1, symbol); + } else if (0 == memcmp(symbol, "__imp__", 7)) { /* mingw 2.0 */ + strcpy(buffer, symbol + 6); + } else if (0 == memcmp(symbol, "_imp___", 7)) { /* mingw 3.7 */ + strcpy(buffer, symbol + 6); + } else { + return symbol; + } + return buffer; +} + +ST_FN int pe_find_import(TCCState * s1, const char *symbol) +{ + char buffer[200]; + const char *s; + int sym_index, n = 0; + do { + s = n ? get_alt_symbol(buffer, symbol) : symbol; + sym_index = find_elf_sym(s1->dynsymtab_section, s); + // printf("find %d %s\n", sym_index, s); + } while (0 == sym_index && ++n < 2); + return sym_index; +} + +#if defined _WIN32 || defined __CYGWIN__ + +#ifdef __CYGWIN__ +# include +# define LoadLibrary(s) dlopen(s, RTLD_NOW) +# define GetProcAddress(h,s) dlsym(h, s) +#else +# define dlclose(h) FreeLibrary(h) +#endif + +/* for the -run option: dynamically load symbol from dll */ +void *resolve_sym(struct TCCState *s1, const char *symbol, int type) +{ + char buffer[100]; + int sym_index, dll_index; + void *addr, **m; + DLLReference *dllref; + + sym_index = pe_find_import(s1, symbol); + if (0 == sym_index) + return NULL; + dll_index = ((Elf32_Sym *)s1->dynsymtab_section->data + sym_index)->st_value; + dllref = s1->loaded_dlls[dll_index-1]; + if ( !dllref->handle ) + { + dllref->handle = LoadLibrary(dllref->name); + } + addr = GetProcAddress(dllref->handle, symbol); + if (NULL == addr) + addr = GetProcAddress(dllref->handle, get_alt_symbol(buffer, symbol)); + + if (addr && STT_OBJECT == type) { + /* need to return a pointer to the address for data objects */ + m = (void**)tcc_malloc(sizeof addr), *m = addr, addr = m; +#ifdef MEM_DEBUG + /* yep, we don't free it */ + mem_cur_size -= sizeof (void*); +#endif + } + return addr; +} +#endif + +/*----------------------------------------------------------------------------*/ + +ST_FN int dynarray_assoc(void **pp, int n, int key) +{ + int i; + for (i = 0; i < n; ++i, ++pp) + if (key == **(int **) pp) + return i; + return -1; +} + +#if 0 +ST_FN DWORD umin(DWORD a, DWORD b) +{ + return a < b ? a : b; +} +#endif + +ST_FN DWORD umax(DWORD a, DWORD b) +{ + return a < b ? b : a; +} + +ST_FN void pe_fpad(FILE *fp, DWORD new_pos) +{ + DWORD pos = ftell(fp); + while (++pos <= new_pos) + fputc(0, fp); +} + +ST_FN DWORD pe_file_align(DWORD n) +{ + return (n + (0x200 - 1)) & ~(0x200 - 1); +} + +ST_FN DWORD pe_virtual_align(DWORD n) +{ + return (n + (0x1000 - 1)) & ~(0x1000 - 1); +} + +ST_FN void pe_align_section(Section *s, int a) +{ + int i = s->data_offset & (a-1); + if (i) + section_ptr_add(s, a - i); +} + +ST_FN void pe_set_datadir(int dir, DWORD addr, DWORD size) +{ + pe_header.opthdr.DataDirectory[dir].VirtualAddress = addr; + pe_header.opthdr.DataDirectory[dir].Size = size; +} + +/*----------------------------------------------------------------------------*/ +ST_FN int pe_write(struct pe_info *pe) +{ + int i; + FILE *op; + DWORD file_offset, r; + + op = fopen(pe->filename, "wb"); + if (NULL == op) { + error_noabort("could not write '%s': %s", pe->filename, strerror(errno)); + return 1; + } + + pe->sizeofheaders = pe_file_align( + sizeof pe_header + + pe->sec_count * sizeof (IMAGE_SECTION_HEADER) + ); + + file_offset = pe->sizeofheaders; + pe_fpad(op, file_offset); + + if (2 == pe->s1->verbose) + printf("-------------------------------" + "\n virt file size section" "\n"); + + for (i = 0; i < pe->sec_count; ++i) { + struct section_info *si = pe->sec_info + i; + const char *sh_name = si->name; + unsigned long addr = si->sh_addr - pe->imagebase; + unsigned long size = si->sh_size; + IMAGE_SECTION_HEADER *psh = &si->ish; + + if (2 == pe->s1->verbose) + printf("%6lx %6lx %6lx %s\n", + addr, file_offset, size, sh_name); + + switch (si->cls) { + case sec_text: + pe_header.opthdr.BaseOfCode = addr; + pe_header.opthdr.AddressOfEntryPoint = addr + pe->start_addr; + break; + + case sec_data: + pe_header.opthdr.BaseOfData = addr; + break; + + case sec_bss: + break; + + case sec_reloc: + pe_set_datadir(IMAGE_DIRECTORY_ENTRY_BASERELOC, addr, size); + break; + + case sec_rsrc: + pe_set_datadir(IMAGE_DIRECTORY_ENTRY_RESOURCE, addr, size); + break; + + case sec_stab: + break; + } + + if (pe->thunk == pe->s1->sections[si->ord]) { + if (pe->imp_size) { + pe_set_datadir(IMAGE_DIRECTORY_ENTRY_IMPORT, + pe->imp_offs + addr, pe->imp_size); + pe_set_datadir(IMAGE_DIRECTORY_ENTRY_IAT, + pe->iat_offs + addr, pe->iat_size); + } + if (pe->exp_size) { + pe_set_datadir(IMAGE_DIRECTORY_ENTRY_EXPORT, + pe->exp_offs + addr, pe->exp_size); + } + } + + strcpy((char*)psh->Name, sh_name); + + psh->Characteristics = pe_sec_flags[si->cls]; + psh->VirtualAddress = addr; + psh->Misc.VirtualSize = size; + pe_header.opthdr.SizeOfImage = + umax(pe_virtual_align(size + addr), pe_header.opthdr.SizeOfImage); + + if (si->data_size) { + psh->PointerToRawData = r = file_offset; + fwrite(si->data, 1, si->data_size, op); + file_offset = pe_file_align(file_offset + si->data_size); + psh->SizeOfRawData = file_offset - r; + pe_fpad(op, file_offset); + } + } + + // pe_header.filehdr.TimeDateStamp = time(NULL); + pe_header.filehdr.NumberOfSections = pe->sec_count; + pe_header.opthdr.SizeOfHeaders = pe->sizeofheaders; + pe_header.opthdr.ImageBase = pe->imagebase; + if (PE_DLL == pe->type) + pe_header.filehdr.Characteristics = 0x230E; + else if (PE_GUI != pe->type) + pe_header.opthdr.Subsystem = 3; + + fseek(op, SEEK_SET, 0); + fwrite(&pe_header, 1, sizeof pe_header, op); + for (i = 0; i < pe->sec_count; ++i) + fwrite(&pe->sec_info[i].ish, 1, sizeof(IMAGE_SECTION_HEADER), op); + fclose (op); + + if (2 == pe->s1->verbose) + printf("-------------------------------\n"); + if (pe->s1->verbose) + printf("<- %s (%lu bytes)\n", pe->filename, file_offset); + + return 0; +} + +/*----------------------------------------------------------------------------*/ + +ST_FN struct import_symbol *pe_add_import(struct pe_info *pe, int sym_index) +{ + int i; + int dll_index; + struct pe_import_info *p; + struct import_symbol *s; + + dll_index = ((Elf32_Sym *)pe->s1->dynsymtab_section->data + sym_index)->st_value; + if (0 == dll_index) + return NULL; + + i = dynarray_assoc ((void**)pe->imp_info, pe->imp_count, dll_index); + if (-1 != i) { + p = pe->imp_info[i]; + goto found_dll; + } + p = tcc_mallocz(sizeof *p); + p->dll_index = dll_index; + dynarray_add((void***)&pe->imp_info, &pe->imp_count, p); + +found_dll: + i = dynarray_assoc ((void**)p->symbols, p->sym_count, sym_index); + if (-1 != i) + return p->symbols[i]; + + s = tcc_mallocz(sizeof *s); + dynarray_add((void***)&p->symbols, &p->sym_count, s); + s->sym_index = sym_index; + return s; +} + +/*----------------------------------------------------------------------------*/ +ST_FN void pe_build_imports(struct pe_info *pe) +{ + int thk_ptr, ent_ptr, dll_ptr, sym_cnt, i; + DWORD rva_base = pe->thunk->sh_addr - pe->imagebase; + int ndlls = pe->imp_count; + + for (sym_cnt = i = 0; i < ndlls; ++i) + sym_cnt += pe->imp_info[i]->sym_count; + + if (0 == sym_cnt) + return; + + pe_align_section(pe->thunk, 16); + + pe->imp_offs = dll_ptr = pe->thunk->data_offset; + pe->imp_size = (ndlls + 1) * sizeof(struct pe_import_header); + pe->iat_offs = dll_ptr + pe->imp_size; + pe->iat_size = (sym_cnt + ndlls) * sizeof(DWORD); + section_ptr_add(pe->thunk, pe->imp_size + 2*pe->iat_size); + + thk_ptr = pe->iat_offs; + ent_ptr = pe->iat_offs + pe->iat_size; + + for (i = 0; i < pe->imp_count; ++i) { + struct pe_import_header *hdr; + int k, n, v; + struct pe_import_info *p = pe->imp_info[i]; + const char *name = pe->s1->loaded_dlls[p->dll_index-1]->name; + + /* put the dll name into the import header */ + v = put_elf_str(pe->thunk, name); + + hdr = (struct pe_import_header*)(pe->thunk->data + dll_ptr); + hdr->first_thunk = thk_ptr + rva_base; + hdr->first_entry = ent_ptr + rva_base; + hdr->lib_name_offset = v + rva_base; + + for (k = 0, n = p->sym_count; k <= n; ++k) { + if (k < n) { + DWORD iat_index = p->symbols[k]->iat_index; + int sym_index = p->symbols[k]->sym_index; + Elf32_Sym *imp_sym = (Elf32_Sym *)pe->s1->dynsymtab_section->data + sym_index; + Elf32_Sym *org_sym = (Elf32_Sym *)symtab_section->data + iat_index; + const char *name = pe->s1->dynsymtab_section->link->data + imp_sym->st_name; + + org_sym->st_value = thk_ptr; + org_sym->st_shndx = pe->thunk->sh_num; + v = pe->thunk->data_offset + rva_base; + section_ptr_add(pe->thunk, sizeof(WORD)); /* hint, not used */ + put_elf_str(pe->thunk, name); + + } else { + v = 0; /* last entry is zero */ + } + *(DWORD*)(pe->thunk->data+thk_ptr) = + *(DWORD*)(pe->thunk->data+ent_ptr) = v; + thk_ptr += sizeof (DWORD); + ent_ptr += sizeof (DWORD); + } + dll_ptr += sizeof(struct pe_import_header); + dynarray_reset(&p->symbols, &p->sym_count); + } + dynarray_reset(&pe->imp_info, &pe->imp_count); +} + +/* ------------------------------------------------------------- */ +/* + For now only functions are exported. Export of data + would work, but import requires compiler support to + do an additional indirection. + + For instance: + __declspec(dllimport) extern int something; + + needs to be translated to: + + *(int*)something +*/ + +ST_FN int sym_cmp(const void *va, const void *vb) +{ + const char *ca = ((const char **)va)[1]; + const char *cb = ((const char **)vb)[1]; + return strcmp(ca, cb); +} + +ST_FN void pe_build_exports(struct pe_info *pe) +{ + Elf32_Sym *sym; + int sym_index, sym_end; + DWORD rva_base, func_o, name_o, ord_o, str_o; + struct pe_export_header *hdr; + int sym_count, n, ord, *sorted, *sp; + + FILE *op; + char buf[MAX_PATH]; + const char *dllname; + const char *name; + + rva_base = pe->thunk->sh_addr - pe->imagebase; + sym_count = 0, n = 1, sorted = NULL, op = NULL; + + sym_end = symtab_section->data_offset / sizeof(Elf32_Sym); + for (sym_index = 1; sym_index < sym_end; ++sym_index) { + sym = (Elf32_Sym*)symtab_section->data + sym_index; + name = symtab_section->link->data + sym->st_name; + if ((sym->st_other & 1) + /* export only symbols from actually written sections */ + && pe->s1->sections[sym->st_shndx]->sh_addr) { + dynarray_add((void***)&sorted, &sym_count, (void*)n); + dynarray_add((void***)&sorted, &sym_count, (void*)name); + } + ++n; +#if 0 + if (sym->st_other & 1) + printf("export: %s\n", name); + if (sym->st_other & 2) + printf("stdcall: %s\n", name); +#endif + } + + if (0 == sym_count) + return; + sym_count /= 2; + + qsort (sorted, sym_count, 2 * sizeof sorted[0], sym_cmp); + pe_align_section(pe->thunk, 16); + dllname = tcc_basename(pe->filename); + + pe->exp_offs = pe->thunk->data_offset; + func_o = pe->exp_offs + sizeof(struct pe_export_header); + name_o = func_o + sym_count * sizeof (DWORD); + ord_o = name_o + sym_count * sizeof (DWORD); + str_o = ord_o + sym_count * sizeof(WORD); + + hdr = section_ptr_add(pe->thunk, str_o - pe->exp_offs); + hdr->Characteristics = 0; + hdr->Base = 1; + hdr->NumberOfFunctions = sym_count; + hdr->NumberOfNames = sym_count; + hdr->AddressOfFunctions = func_o + rva_base; + hdr->AddressOfNames = name_o + rva_base; + hdr->AddressOfNameOrdinals = ord_o + rva_base; + hdr->Name = str_o + rva_base; + put_elf_str(pe->thunk, dllname); + +#if 1 + /* automatically write exports to .def */ + strcpy(buf, pe->filename); + strcpy(tcc_fileextension(buf), ".def"); + op = fopen(buf, "w"); + if (NULL == op) { + error_noabort("could not create '%s': %s", buf, strerror(errno)); + } else { + fprintf(op, "LIBRARY %s\n\nEXPORTS\n", dllname); + if (pe->s1->verbose) + printf("<- %s (%d symbols)\n", buf, sym_count); + } +#endif + + for (sp = sorted, ord = 0; ord < sym_count; ++ord, sp += 2) + { + sym_index = sp[0], name = (const char *)sp[1]; + /* insert actual address later in pe_relocate_rva */ + put_elf_reloc(symtab_section, pe->thunk, + func_o, R_386_RELATIVE, sym_index); + *(DWORD*)(pe->thunk->data + name_o) + = pe->thunk->data_offset + rva_base; + *(WORD*)(pe->thunk->data + ord_o) + = ord; + put_elf_str(pe->thunk, name); + func_o += sizeof (DWORD); + name_o += sizeof (DWORD); + ord_o += sizeof (WORD); + + if (op) + fprintf(op, "%s\n", name); + } + pe->exp_size = pe->thunk->data_offset - pe->exp_offs; + tcc_free(sorted); +} + +/* ------------------------------------------------------------- */ +ST_FN void pe_build_reloc (struct pe_info *pe) +{ + DWORD offset, block_ptr, addr; + int count, i; + Elf32_Rel *rel, *rel_end; + Section *s = NULL, *sr; + + offset = addr = block_ptr = count = i = 0; + rel = rel_end = NULL; + + for(;;) { + if (rel < rel_end) { + int type = ELF32_R_TYPE(rel->r_info); + addr = rel->r_offset + s->sh_addr; + ++ rel; + if (type != R_386_32) + continue; + if (count == 0) { /* new block */ + block_ptr = pe->reloc->data_offset; + section_ptr_add(pe->reloc, sizeof(struct pe_reloc_header)); + offset = addr & 0xFFFFFFFF<<12; + } + if ((addr -= offset) < (1<<12)) { /* one block spans 4k addresses */ + WORD *wp = section_ptr_add(pe->reloc, sizeof (WORD)); + *wp = addr | IMAGE_REL_BASED_HIGHLOW<<12; + ++count; + continue; + } + -- rel; + + } else if (i < pe->sec_count) { + sr = (s = pe->s1->sections[pe->sec_info[i++].ord])->reloc; + if (sr) { + rel = (Elf32_Rel *)sr->data; + rel_end = (Elf32_Rel *)(sr->data + sr->data_offset); + } + continue; + } + + if (count) { + /* store the last block and ready for a new one */ + struct pe_reloc_header *hdr; + if (count & 1) /* align for DWORDS */ + section_ptr_add(pe->reloc, sizeof(WORD)), ++count; + hdr = (struct pe_reloc_header *)(pe->reloc->data + block_ptr); + hdr -> offset = offset - pe->imagebase; + hdr -> size = count * sizeof(WORD) + sizeof(struct pe_reloc_header); + count = 0; + } + + if (rel >= rel_end) + break; + } +} + +/* ------------------------------------------------------------- */ +ST_FN int pe_section_class(Section *s) +{ + int type, flags; + const char *name; + + type = s->sh_type; + flags = s->sh_flags; + name = s->name; + if (flags & SHF_ALLOC) { + if (type == SHT_PROGBITS) { + if (flags & SHF_EXECINSTR) + return sec_text; + if (flags & SHF_WRITE) + return sec_data; + if (0 == strcmp(name, ".rsrc")) + return sec_rsrc; + if (0 == strcmp(name, ".iedat")) + return sec_idata; + return sec_other; + } else if (type == SHT_NOBITS) { + if (flags & SHF_WRITE) + return sec_bss; + } + } else { + if (0 == strcmp(name, ".reloc")) + return sec_reloc; + if (0 == strncmp(name, ".stab", 5)) /* .stab and .stabstr */ + return sec_stab; + } + return -1; +} + +ST_FN int pe_assign_addresses (struct pe_info *pe) +{ + int i, k, o, c; + DWORD addr; + int *section_order; + struct section_info *si; + Section *s; + + // pe->thunk = new_section(pe->s1, ".iedat", SHT_PROGBITS, SHF_ALLOC); + + section_order = tcc_malloc(pe->s1->nb_sections * sizeof (int)); + for (o = k = 0 ; k < sec_last; ++k) { + for (i = 1; i < pe->s1->nb_sections; ++i) { + s = pe->s1->sections[i]; + if (k == pe_section_class(s)) { + // printf("%s %d\n", s->name, k); + s->sh_addr = pe->imagebase; + section_order[o++] = i; + } + } + } + + pe->sec_info = tcc_mallocz(o * sizeof (struct section_info)); + addr = pe->imagebase + 1; + + for (i = 0; i < o; ++i) + { + k = section_order[i]; + s = pe->s1->sections[k]; + c = pe_section_class(s); + si = &pe->sec_info[pe->sec_count]; + +#ifdef PE_MERGE_DATA + if (c == sec_bss && pe->sec_count && si[-1].cls == sec_data) { + /* append .bss to .data */ + s->sh_addr = addr = ((addr-1) | 15) + 1; + addr += s->data_offset; + si[-1].sh_size = addr - si[-1].sh_addr; + continue; + } +#endif + strcpy(si->name, s->name); + si->cls = c; + si->ord = k; + si->sh_addr = s->sh_addr = addr = pe_virtual_align(addr); + si->sh_flags = s->sh_flags; + + if (c == sec_data && NULL == pe->thunk) + pe->thunk = s; + + if (s == pe->thunk) { + pe_build_imports(pe); + pe_build_exports(pe); + } + + if (c == sec_reloc) + pe_build_reloc (pe); + + if (s->data_offset) + { + if (s->sh_type != SHT_NOBITS) { + si->data = s->data; + si->data_size = s->data_offset; + } + + addr += s->data_offset; + si->sh_size = s->data_offset; + ++pe->sec_count; + } + // printf("%08x %05x %s\n", si->sh_addr, si->sh_size, si->name); + } + +#if 0 + for (i = 1; i < pe->s1->nb_sections; ++i) { + Section *s = pe->s1->sections[i]; + int type = s->sh_type; + int flags = s->sh_flags; + printf("section %-16s %-10s %5x %s,%s,%s\n", + s->name, + type == SHT_PROGBITS ? "progbits" : + type == SHT_NOBITS ? "nobits" : + type == SHT_SYMTAB ? "symtab" : + type == SHT_STRTAB ? "strtab" : + type == SHT_REL ? "rel" : "???", + s->data_offset, + flags & SHF_ALLOC ? "alloc" : "", + flags & SHF_WRITE ? "write" : "", + flags & SHF_EXECINSTR ? "exec" : "" + ); + } + pe->s1->verbose = 2; +#endif + + tcc_free(section_order); + return 0; +} + +/* ------------------------------------------------------------- */ +ST_FN void pe_relocate_rva (struct pe_info *pe, Section *s) +{ + Section *sr = s->reloc; + Elf32_Rel *rel, *rel_end; + rel_end = (Elf32_Rel *)(sr->data + sr->data_offset); + for(rel = (Elf32_Rel *)sr->data; rel < rel_end; rel++) + if (ELF32_R_TYPE(rel->r_info) == R_386_RELATIVE) { + int sym_index = ELF32_R_SYM(rel->r_info); + DWORD addr = s->sh_addr; + if (sym_index) { + Elf32_Sym *sym = (Elf32_Sym *)symtab_section->data + sym_index; + addr = sym->st_value; + } + *(DWORD*)(s->data + rel->r_offset) += addr - pe->imagebase; + } +} + +/*----------------------------------------------------------------------------*/ +ST_FN int pe_check_symbols(struct pe_info *pe) +{ + Elf32_Sym *sym; + int sym_index, sym_end; + int ret = 0; + + pe_align_section(text_section, 8); + + sym_end = symtab_section->data_offset / sizeof(Elf32_Sym); + for (sym_index = 1; sym_index < sym_end; ++sym_index) { + + sym = (Elf32_Sym*)symtab_section->data + sym_index; + if (sym->st_shndx == SHN_UNDEF) { + + const char *name = symtab_section->link->data + sym->st_name; + unsigned type = ELF32_ST_TYPE(sym->st_info); + int imp_sym = pe_find_import(pe->s1, name); + struct import_symbol *is; + + if (0 == imp_sym) + goto not_found; + is = pe_add_import(pe, imp_sym); + if (!is) + goto not_found; + + if (type == STT_FUNC) { + unsigned long offset = is->thk_offset; + if (offset) { + /* got aliased symbol, like stricmp and _stricmp */ + + } else { + char buffer[100]; + + offset = text_section->data_offset; + /* add the 'jmp IAT[x]' instruction */ + *(WORD*)section_ptr_add(text_section, 8) = 0x25FF; + + /* add a helper symbol, will be patched later in + pe_build_imports */ + sprintf(buffer, "IAT.%s", name); + is->iat_index = put_elf_sym( + symtab_section, 0, sizeof(DWORD), + ELF32_ST_INFO(STB_GLOBAL, STT_OBJECT), + 0, SHN_UNDEF, buffer); + put_elf_reloc(symtab_section, text_section, + offset + 2, R_386_32, is->iat_index); + is->thk_offset = offset; + } + + /* tcc_realloc might have altered sym's address */ + sym = (Elf32_Sym*)symtab_section->data + sym_index; + + /* patch the original symbol */ + sym->st_value = offset; + sym->st_shndx = text_section->sh_num; + sym->st_other &= ~1; /* do not export */ + continue; + } + + if (type == STT_OBJECT) { /* data, ptr to that should be */ + if (0 == is->iat_index) { + /* original symbol will be patched later in pe_build_imports */ + is->iat_index = sym_index; + continue; + } + } + + not_found: + error_noabort("undefined symbol '%s'", name); + ret = 1; + + } else if (pe->s1->rdynamic + && ELF32_ST_BIND(sym->st_info) != STB_LOCAL) { + /* if -rdynamic option, then export all non local symbols */ + sym->st_other |= 1; + } + } + return ret; +} + +/*----------------------------------------------------------------------------*/ +#ifdef PE_PRINT_SECTIONS +ST_FN void pe_print_section(FILE * f, Section * s) +{ + /* just if you'r curious */ + BYTE *p, *e, b; + int i, n, l, m; + p = s->data; + e = s->data + s->data_offset; + l = e - p; + + fprintf(f, "section \"%s\"", s->name); + if (s->link) + fprintf(f, "\nlink \"%s\"", s->link->name); + if (s->reloc) + fprintf(f, "\nreloc \"%s\"", s->reloc->name); + fprintf(f, "\nv_addr %08X", s->sh_addr); + fprintf(f, "\ncontents %08X", l); + fprintf(f, "\n\n"); + + if (s->sh_type == SHT_NOBITS) + return; + + if (0 == l) + return; + + if (s->sh_type == SHT_SYMTAB) + m = sizeof(Elf32_Sym); + if (s->sh_type == SHT_REL) + m = sizeof(Elf32_Rel); + else + m = 16; + + fprintf(f, "%-8s", "offset"); + for (i = 0; i < m; ++i) + fprintf(f, " %02x", i); + n = 56; + + if (s->sh_type == SHT_SYMTAB || s->sh_type == SHT_REL) { + const char *fields1[] = { + "name", + "value", + "size", + "bind", + "type", + "other", + "shndx", + NULL + }; + + const char *fields2[] = { + "offs", + "type", + "symb", + NULL + }; + + const char **p; + + if (s->sh_type == SHT_SYMTAB) + p = fields1, n = 106; + else + p = fields2, n = 58; + + for (i = 0; p[i]; ++i) + fprintf(f, "%6s", p[i]); + fprintf(f, " symbol"); + } + + fprintf(f, "\n"); + for (i = 0; i < n; ++i) + fprintf(f, "-"); + fprintf(f, "\n"); + + for (i = 0; i < l;) + { + fprintf(f, "%08X", i); + for (n = 0; n < m; ++n) { + if (n + i < l) + fprintf(f, " %02X", p[i + n]); + else + fprintf(f, " "); + } + + if (s->sh_type == SHT_SYMTAB) { + Elf32_Sym *sym = (Elf32_Sym *) (p + i); + const char *name = s->link->data + sym->st_name; + fprintf(f, " %04X %04X %04X %02X %02X %02X %04X \"%s\"", + sym->st_name, + sym->st_value, + sym->st_size, + ELF32_ST_BIND(sym->st_info), + ELF32_ST_TYPE(sym->st_info), + sym->st_other, sym->st_shndx, name); + + } else if (s->sh_type == SHT_REL) { + Elf32_Rel *rel = (Elf32_Rel *) (p + i); + Elf32_Sym *sym = + (Elf32_Sym *) s->link->data + ELF32_R_SYM(rel->r_info); + const char *name = s->link->link->data + sym->st_name; + fprintf(f, " %04X %02X %04X \"%s\"", + rel->r_offset, + ELF32_R_TYPE(rel->r_info), + ELF32_R_SYM(rel->r_info), name); + } else { + fprintf(f, " "); + for (n = 0; n < m; ++n) { + if (n + i < l) { + b = p[i + n]; + if (b < 32 || b >= 127) + b = '.'; + fprintf(f, "%c", b); + } + } + } + i += m; + fprintf(f, "\n"); + } + fprintf(f, "\n\n"); +} + +ST_FN void pe_print_sections(TCCState *s1, const char *fname) +{ + Section *s; + FILE *f; + int i; + f = fopen(fname, "wt"); + for (i = 1; i < s1->nb_sections; ++i) { + s = s1->sections[i]; + pe_print_section(f, s); + } + pe_print_section(f, s1->dynsymtab_section); + fclose(f); +} +#endif + +/* ------------------------------------------------------------- + * This is for compiled windows resources in 'coff' format + * as generated by 'windres.exe -O coff ...'. + */ + +PUB_FN int pe_test_res_file(void *v, int size) +{ + struct pe_rsrc_header *p = (struct pe_rsrc_header *)v; + return + size >= IMAGE_SIZEOF_FILE_HEADER + IMAGE_SIZEOF_SHORT_NAME /* = 28 */ + && p->filehdr.Machine == 0x014C + && 1 == p->filehdr.NumberOfSections + && 0 == strcmp(p->sectionhdr.Name, ".rsrc") + ; +} + +ST_FN int read_n(int fd, void *ptr, unsigned size) +{ + return size == read(fd, ptr, size); +} + +PUB_FN int pe_load_res_file(TCCState *s1, int fd) +{ + struct pe_rsrc_header hdr; + Section *rsrc_section; + int i, ret = -1; + BYTE *ptr; + + lseek (fd, 0, SEEK_SET); + if (!read_n(fd, &hdr, sizeof hdr)) + goto quit; + if (!pe_test_res_file(&hdr, sizeof hdr)) + goto quit; + + rsrc_section = new_section(s1, ".rsrc", SHT_PROGBITS, SHF_ALLOC); + ptr = section_ptr_add(rsrc_section, hdr.sectionhdr.SizeOfRawData); + lseek (fd, hdr.sectionhdr.PointerToRawData, SEEK_SET); + if (!read_n(fd, ptr, hdr.sectionhdr.SizeOfRawData)) + goto quit; + + lseek (fd, hdr.sectionhdr.PointerToRelocations, SEEK_SET); + for (i = 0; i < hdr.sectionhdr.NumberOfRelocations; ++i) + { + struct pe_rsrc_reloc rel; + if (!read_n(fd, &rel, sizeof rel)) + goto quit; + // printf("rsrc_reloc: %x %x %x\n", rel.offset, rel.size, rel.type); + if (rel.type != 7) /* DIR32NB */ + goto quit; + put_elf_reloc(symtab_section, rsrc_section, + rel.offset, R_386_RELATIVE, 0); + } + ret = 0; +quit: + if (ret) + error_noabort("unrecognized resource file format"); + return ret; +} + +/* ------------------------------------------------------------- */ +ST_FN char *trimfront(char *p) +{ + while (*p && (unsigned char)*p <= ' ') + ++p; + return p; +} + +ST_FN char *trimback(char *a, char *e) +{ + while (e > a && (unsigned char)e[-1] <= ' ') + --e; + *e = 0;; + return a; +} + +ST_FN char *get_line(char *line, int size, FILE *fp) +{ + if (NULL == fgets(line, size, fp)) + return NULL; + trimback(line, strchr(line, 0)); + return trimfront(line); +} + +/* ------------------------------------------------------------- */ +PUB_FN int pe_load_def_file(TCCState *s1, int fd) +{ + DLLReference *dllref; + int state = 0, ret = -1; + char line[400], dllname[80], *p; + FILE *fp = fdopen(dup(fd), "rb"); + + if (NULL == fp) + goto quit; + + for (;;) { + p = get_line(line, sizeof line, fp); + if (NULL == p) + break; + if (0 == *p || ';' == *p) + continue; + switch (state) { + case 0: + if (0 != strnicmp(p, "LIBRARY", 7)) + goto quit; + strcpy(dllname, trimfront(p+7)); + ++state; + continue; + + case 1: + if (0 != stricmp(p, "EXPORTS")) + goto quit; + ++state; + continue; + + case 2: + dllref = tcc_mallocz(sizeof(DLLReference) + strlen(dllname)); + strcpy(dllref->name, dllname); + dynarray_add((void ***) &s1->loaded_dlls, &s1->nb_loaded_dlls, dllref); + ++state; + + default: + add_elf_sym(s1->dynsymtab_section, + s1->nb_loaded_dlls, 0, + ELF32_ST_INFO(STB_GLOBAL, STT_FUNC), 0, + text_section->sh_num, p); + continue; + } + } + ret = 0; +quit: + if (fp) + fclose(fp); + if (ret) + error_noabort("unrecognized export definition file format"); + return ret; +} + +/* ------------------------------------------------------------- */ + +ST_FN void pe_add_runtime_ex(TCCState *s1, struct pe_info *pe) +{ + const char *start_symbol; + unsigned long addr = 0; + int pe_type = 0; + + if (find_elf_sym(symtab_section, "_WinMain@16")) + pe_type = PE_GUI; + else + if (TCC_OUTPUT_DLL == s1->output_type) { + pe_type = PE_DLL; + /* need this for 'tccelf.c:relocate_section()' */ + s1->output_type = TCC_OUTPUT_EXE; + } + + start_symbol = + TCC_OUTPUT_MEMORY == s1->output_type + ? PE_GUI == pe_type ? "_runwinmain" : NULL + : PE_DLL == pe_type ? "__dllstart@12" + : PE_GUI == pe_type ? "_winstart" : "_start" + ; + + /* grab the startup code from libtcc1 */ + if (start_symbol) + add_elf_sym(symtab_section, + 0, 0, + ELF32_ST_INFO(STB_GLOBAL, STT_NOTYPE), 0, + SHN_UNDEF, start_symbol); + + if (0 == s1->nostdlib) { + tcc_add_library(s1, "tcc1"); +#ifdef __CYGWIN__ + tcc_add_library(s1, "cygwin1"); +#else + tcc_add_library(s1, "msvcrt"); +#endif + tcc_add_library(s1, "kernel32"); + if (PE_DLL == pe_type || PE_GUI == pe_type) { + tcc_add_library(s1, "user32"); + tcc_add_library(s1, "gdi32"); + } + } + + if (start_symbol) { + addr = (unsigned long)tcc_get_symbol_err(s1, start_symbol); + if (s1->output_type == TCC_OUTPUT_MEMORY && addr) + /* for -run GUI's, put '_runwinmain' instead of 'main' */ + add_elf_sym(symtab_section, + addr, 0, + ELF32_ST_INFO(STB_GLOBAL, STT_NOTYPE), 0, + text_section->sh_num, "main"); + } + + if (pe) { + pe->type = pe_type; + pe->start_addr = addr; + } +} + +PUB_FN void pe_add_runtime(TCCState *s1) +{ + pe_add_runtime_ex(s1, NULL); +} + +PUB_FN int pe_output_file(TCCState * s1, const char *filename) +{ + int ret; + struct pe_info pe; + int i; + + memset(&pe, 0, sizeof pe); + pe.filename = filename; + pe.s1 = s1; + + pe_add_runtime_ex(s1, &pe); + relocate_common_syms(); /* assign bss adresses */ + tcc_add_linker_symbols(s1); + + ret = pe_check_symbols(&pe); + if (0 == ret) { + if (PE_DLL == pe.type) { + pe.reloc = new_section(pe.s1, ".reloc", SHT_PROGBITS, 0); + pe.imagebase = 0x10000000; + } else { + pe.imagebase = 0x00400000; + } + pe_assign_addresses(&pe); + relocate_syms(s1, 0); + for (i = 1; i < s1->nb_sections; ++i) { + Section *s = s1->sections[i]; + if (s->reloc) { + relocate_section(s1, s); + pe_relocate_rva(&pe, s); + } + } + if (s1->nb_errors) + ret = 1; + else + ret = pe_write(&pe); + tcc_free(pe.sec_info); + } + +#ifdef PE_PRINT_SECTIONS + pe_print_sections(s1, "tcc.log"); +#endif + return ret; +} + +/* ------------------------------------------------------------- */ +#endif /* def TCC_TARGET_PE */ +/* ------------------------------------------------------------- */ -- cgit v1.2.3