diff options
Diffstat (limited to 'tinyc/tccpe.c')
| -rw-r--r-- | tinyc/tccpe.c | 2014 |
1 files changed, 0 insertions, 2014 deletions
diff --git a/tinyc/tccpe.c b/tinyc/tccpe.c deleted file mode 100644 index a67023dd2..000000000 --- a/tinyc/tccpe.c +++ /dev/null @@ -1,2014 +0,0 @@ -/* - * 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 - */ - -#include "tcc.h" - -#define PE_MERGE_DATA -/* #define PE_PRINT_SECTIONS */ - -#ifndef _WIN32 -#define stricmp strcasecmp -#define strnicmp strncasecmp -#include <sys/stat.h> /* chmod() */ -#endif - -#ifdef TCC_TARGET_X86_64 -# define ADDR3264 ULONGLONG -# define PE_IMAGE_REL IMAGE_REL_BASED_DIR64 -# define REL_TYPE_DIRECT R_X86_64_64 -# define R_XXX_THUNKFIX R_X86_64_PC32 -# define R_XXX_RELATIVE R_X86_64_RELATIVE -# define IMAGE_FILE_MACHINE 0x8664 -# define RSRC_RELTYPE 3 - -#elif defined TCC_TARGET_ARM -# define ADDR3264 DWORD -# define PE_IMAGE_REL IMAGE_REL_BASED_HIGHLOW -# define REL_TYPE_DIRECT R_ARM_ABS32 -# define R_XXX_THUNKFIX R_ARM_ABS32 -# define R_XXX_RELATIVE R_ARM_RELATIVE -# define IMAGE_FILE_MACHINE 0x01C0 -# define RSRC_RELTYPE 7 /* ??? (not tested) */ - -#elif defined TCC_TARGET_I386 -# define ADDR3264 DWORD -# define PE_IMAGE_REL IMAGE_REL_BASED_HIGHLOW -# define REL_TYPE_DIRECT R_386_32 -# define R_XXX_THUNKFIX R_386_32 -# define R_XXX_RELATIVE R_386_RELATIVE -# define IMAGE_FILE_MACHINE 0x014C -# define RSRC_RELTYPE 7 /* DIR32NB */ - -#endif - -#ifndef IMAGE_NT_SIGNATURE -/* ----------------------------------------------------------- */ -/* definitions below are from winnt.h */ - -typedef unsigned char BYTE; -typedef unsigned short WORD; -typedef unsigned int DWORD; -typedef unsigned long long ULONGLONG; -#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; -#ifndef TCC_TARGET_X86_64 - DWORD BaseOfData; -#endif - /* NT additional fields. */ - ADDR3264 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; - ADDR3264 SizeOfStackReserve; - ADDR3264 SizeOfStackCommit; - ADDR3264 SizeOfHeapReserve; - ADDR3264 SizeOfHeapCommit; - DWORD LoaderFlags; - DWORD NumberOfRvaAndSizes; - IMAGE_DATA_DIRECTORY DataDirectory[16]; -} IMAGE_OPTIONAL_HEADER32, IMAGE_OPTIONAL_HEADER64, IMAGE_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_EXPORT_DIRECTORY { - DWORD Characteristics; - DWORD TimeDateStamp; - WORD MajorVersion; - WORD MinorVersion; - DWORD Name; - DWORD Base; - DWORD NumberOfFunctions; - DWORD NumberOfNames; - DWORD AddressOfFunctions; - DWORD AddressOfNames; - DWORD AddressOfNameOrdinals; -} IMAGE_EXPORT_DIRECTORY,*PIMAGE_EXPORT_DIRECTORY; - -typedef struct _IMAGE_IMPORT_DESCRIPTOR { - union { - DWORD Characteristics; - DWORD OriginalFirstThunk; - }; - DWORD TimeDateStamp; - DWORD ForwarderChain; - DWORD Name; - DWORD FirstThunk; -} IMAGE_IMPORT_DESCRIPTOR; - -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 -#define IMAGE_REL_BASED_DIR64 10 - -#pragma pack(pop) - -/* ----------------------------------------------------------- */ -#endif /* ndef IMAGE_NT_SIGNATURE */ -/* ----------------------------------------------------------- */ - -#ifndef IMAGE_REL_BASED_DIR64 -# define IMAGE_REL_BASED_DIR64 10 -#endif - -#pragma pack(push, 1) -struct pe_header -{ - IMAGE_DOS_HEADER doshdr; - BYTE dosstub[0x40]; - DWORD nt_sig; - IMAGE_FILE_HEADER filehdr; -#ifdef TCC_TARGET_X86_64 - IMAGE_OPTIONAL_HEADER64 opthdr; -#else -#ifdef _WIN64 - IMAGE_OPTIONAL_HEADER32 opthdr; -#else - IMAGE_OPTIONAL_HEADER opthdr; -#endif -#endif -}; - -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) - -/* ------------------------------------------------------------- */ -/* 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_pdata , - sec_other , - sec_rsrc , - sec_stab , - sec_reloc , - sec_last -}; - -static const DWORD pe_sec_flags[] = { - 0x60000020, /* ".text" , */ - 0xC0000040, /* ".data" , */ - 0xC0000080, /* ".bss" , */ - 0x40000040, /* ".idata" , */ - 0x40000040, /* ".pdata" , */ - 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; - ADDR3264 imagebase; - const char *start_symbol; - DWORD start_addr; - DWORD imp_offs; - DWORD imp_size; - DWORD iat_offs; - DWORD iat_size; - DWORD exp_offs; - DWORD exp_size; - int subsystem; - DWORD section_align; - DWORD file_align; - 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 -#define PE_RUN 4 - -/* --------------------------------------------*/ - -static const char *pe_export_name(TCCState *s1, ElfW(Sym) *sym) -{ - const char *name = (char*)symtab_section->link->data + sym->st_name; - if (s1->leading_underscore && name[0] == '_' && !(sym->st_other & ST_PE_STDCALL)) - return name + 1; - return name; -} - -static int pe_find_import(TCCState * s1, ElfW(Sym) *sym) -{ - char buffer[200]; - const char *s, *p; - int sym_index = 0, n = 0; - int a, err = 0; - - do { - s = pe_export_name(s1, sym); - a = 0; - if (n) { - /* second try: */ - if (sym->st_other & ST_PE_STDCALL) { - /* try w/0 stdcall deco (windows API convention) */ - p = strrchr(s, '@'); - if (!p || s[0] != '_') - break; - strcpy(buffer, s+1)[p-s-1] = 0; - } else if (s[0] != '_') { /* try non-ansi function */ - buffer[0] = '_', strcpy(buffer + 1, s); - } else if (0 == memcmp(s, "__imp_", 6)) { /* mingw 2.0 */ - strcpy(buffer, s + 6), a = 1; - } else if (0 == memcmp(s, "_imp__", 6)) { /* mingw 3.7 */ - strcpy(buffer, s + 6), a = 1; - } else { - continue; - } - s = buffer; - } - sym_index = find_elf_sym(s1->dynsymtab_section, s); - // printf("find (%d) %d %s\n", n, sym_index, s); - if (sym_index - && ELFW(ST_TYPE)(sym->st_info) == STT_OBJECT - && 0 == (sym->st_other & ST_PE_IMPORT) - && 0 == a - ) err = -1, sym_index = 0; - } while (0 == sym_index && ++n < 2); - return n == 2 ? err : sym_index; -} - -/*----------------------------------------------------------------------------*/ - -static 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 - -static DWORD umax(DWORD a, DWORD b) -{ - return a < b ? b : a; -} - -static DWORD pe_file_align(struct pe_info *pe, DWORD n) -{ - return (n + (pe->file_align - 1)) & ~(pe->file_align - 1); -} - -static DWORD pe_virtual_align(struct pe_info *pe, DWORD n) -{ - return (n + (pe->section_align - 1)) & ~(pe->section_align - 1); -} - -static void pe_align_section(Section *s, int a) -{ - int i = s->data_offset & (a-1); - if (i) - section_ptr_add(s, a - i); -} - -static void pe_set_datadir(struct pe_header *hdr, int dir, DWORD addr, DWORD size) -{ - hdr->opthdr.DataDirectory[dir].VirtualAddress = addr; - hdr->opthdr.DataDirectory[dir].Size = size; -} - -static int pe_fwrite(void *data, unsigned len, FILE *fp, DWORD *psum) -{ - if (psum) { - DWORD sum = *psum; - WORD *p = data; - int i; - for (i = len; i > 0; i -= 2) { - sum += (i >= 2) ? *p++ : *(BYTE*)p; - sum = (sum + (sum >> 16)) & 0xFFFF; - } - *psum = sum; - } - return len == fwrite(data, 1, len, fp) ? 0 : -1; -} - -static void pe_fpad(FILE *fp, DWORD new_pos) -{ - DWORD pos = ftell(fp); - while (++pos <= new_pos) - fputc(0, fp); -} - -/*----------------------------------------------------------------------------*/ -static int pe_write(struct pe_info *pe) -{ - static const struct pe_header pe_template = { - { - /* 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 */ - IMAGE_FILE_MACHINE, /*WORD Machine; */ - 0x0003, /*WORD NumberOfSections; */ - 0x00000000, /*DWORD TimeDateStamp; */ - 0x00000000, /*DWORD PointerToSymbolTable; */ - 0x00000000, /*DWORD NumberOfSymbols; */ -#if defined(TCC_TARGET_X86_64) - 0x00F0, /*WORD SizeOfOptionalHeader; */ - 0x022F /*WORD Characteristics; */ -#define CHARACTERISTICS_DLL 0x222E -#elif defined(TCC_TARGET_I386) - 0x00E0, /*WORD SizeOfOptionalHeader; */ - 0x030F /*WORD Characteristics; */ -#define CHARACTERISTICS_DLL 0x230E -#elif defined(TCC_TARGET_ARM) - 0x00E0, /*WORD SizeOfOptionalHeader; */ - 0x010F, /*WORD Characteristics; */ -#define CHARACTERISTICS_DLL 0x230F -#endif -},{ - /* IMAGE_OPTIONAL_HEADER opthdr */ - /* Standard fields. */ -#ifdef TCC_TARGET_X86_64 - 0x020B, /*WORD Magic; */ -#else - 0x010B, /*WORD Magic; */ -#endif - 0x06, /*BYTE MajorLinkerVersion; */ - 0x00, /*BYTE MinorLinkerVersion; */ - 0x00000000, /*DWORD SizeOfCode; */ - 0x00000000, /*DWORD SizeOfInitializedData; */ - 0x00000000, /*DWORD SizeOfUninitializedData; */ - 0x00000000, /*DWORD AddressOfEntryPoint; */ - 0x00000000, /*DWORD BaseOfCode; */ -#ifndef TCC_TARGET_X86_64 - 0x00000000, /*DWORD BaseOfData; */ -#endif - /* NT additional fields. */ -#if defined(TCC_TARGET_ARM) - 0x00100000, /*DWORD ImageBase; */ -#else - 0x00400000, /*DWORD ImageBase; */ -#endif - 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}} - }}; - - struct pe_header pe_header = pe_template; - - int i; - FILE *op; - DWORD file_offset, sum; - struct section_info *si; - IMAGE_SECTION_HEADER *psh; - - op = fopen(pe->filename, "wb"); - if (NULL == op) { - tcc_error_noabort("could not write '%s': %s", pe->filename, strerror(errno)); - return -1; - } - - pe->sizeofheaders = pe_file_align(pe, - sizeof (struct pe_header) - + pe->sec_count * sizeof (IMAGE_SECTION_HEADER) - ); - - file_offset = pe->sizeofheaders; - - if (2 == pe->s1->verbose) - printf("-------------------------------" - "\n virt file size section" "\n"); - for (i = 0; i < pe->sec_count; ++i) { - DWORD addr, size; - const char *sh_name; - - si = pe->sec_info + i; - sh_name = si->name; - addr = si->sh_addr - pe->imagebase; - size = si->sh_size; - psh = &si->ish; - - if (2 == pe->s1->verbose) - printf("%6x %6x %6x %s\n", - (unsigned)addr, (unsigned)file_offset, (unsigned)size, sh_name); - - switch (si->cls) { - case sec_text: - pe_header.opthdr.BaseOfCode = addr; - break; - - case sec_data: -#ifndef TCC_TARGET_X86_64 - pe_header.opthdr.BaseOfData = addr; -#endif - break; - - case sec_bss: - break; - - case sec_reloc: - pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_BASERELOC, addr, size); - break; - - case sec_rsrc: - pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_RESOURCE, addr, size); - break; - - case sec_pdata: - pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_EXCEPTION, addr, size); - break; - - case sec_stab: - break; - } - - if (pe->thunk == pe->s1->sections[si->ord]) { - if (pe->imp_size) { - pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_IMPORT, - pe->imp_offs + addr, pe->imp_size); - pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_IAT, - pe->iat_offs + addr, pe->iat_size); - } - if (pe->exp_size) { - pe_set_datadir(&pe_header, IMAGE_DIRECTORY_ENTRY_EXPORT, - pe->exp_offs + addr, pe->exp_size); - } - } - - strncpy((char*)psh->Name, sh_name, sizeof psh->Name); - - psh->Characteristics = pe_sec_flags[si->cls]; - psh->VirtualAddress = addr; - psh->Misc.VirtualSize = size; - pe_header.opthdr.SizeOfImage = - umax(pe_virtual_align(pe, size + addr), pe_header.opthdr.SizeOfImage); - - if (si->data_size) { - psh->PointerToRawData = file_offset; - file_offset = pe_file_align(pe, file_offset + si->data_size); - psh->SizeOfRawData = file_offset - psh->PointerToRawData; - if (si->cls == sec_text) - pe_header.opthdr.SizeOfCode += psh->SizeOfRawData; - else - pe_header.opthdr.SizeOfInitializedData += psh->SizeOfRawData; - } - } - - //pe_header.filehdr.TimeDateStamp = time(NULL); - pe_header.filehdr.NumberOfSections = pe->sec_count; - pe_header.opthdr.AddressOfEntryPoint = pe->start_addr; - pe_header.opthdr.SizeOfHeaders = pe->sizeofheaders; - pe_header.opthdr.ImageBase = pe->imagebase; - pe_header.opthdr.Subsystem = pe->subsystem; - if (pe->s1->pe_stack_size) - pe_header.opthdr.SizeOfStackReserve = pe->s1->pe_stack_size; - if (PE_DLL == pe->type) - pe_header.filehdr.Characteristics = CHARACTERISTICS_DLL; - pe_header.filehdr.Characteristics |= pe->s1->pe_characteristics; - - sum = 0; - pe_fwrite(&pe_header, sizeof pe_header, op, &sum); - for (i = 0; i < pe->sec_count; ++i) - pe_fwrite(&pe->sec_info[i].ish, sizeof(IMAGE_SECTION_HEADER), op, &sum); - pe_fpad(op, pe->sizeofheaders); - for (i = 0; i < pe->sec_count; ++i) { - si = pe->sec_info + i; - psh = &si->ish; - if (si->data_size) { - pe_fwrite(si->data, si->data_size, op, &sum); - file_offset = psh->PointerToRawData + psh->SizeOfRawData; - pe_fpad(op, file_offset); - } - } - - pe_header.opthdr.CheckSum = sum + file_offset; - fseek(op, offsetof(struct pe_header, opthdr.CheckSum), SEEK_SET); - pe_fwrite(&pe_header.opthdr.CheckSum, sizeof pe_header.opthdr.CheckSum, op, NULL); - fclose (op); -#ifndef _WIN32 - chmod(pe->filename, 0777); -#endif - - if (2 == pe->s1->verbose) - printf("-------------------------------\n"); - if (pe->s1->verbose) - printf("<- %s (%u bytes)\n", pe->filename, (unsigned)file_offset); - - return 0; -} - -/*----------------------------------------------------------------------------*/ - -static 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; - ElfW(Sym) *isym; - - isym = (ElfW(Sym) *)pe->s1->dynsymtab_section->data + sym_index; - dll_index = isym->st_size; - - 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(&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(&p->symbols, &p->sym_count, s); - s->sym_index = sym_index; - return s; -} - -void pe_free_imports(struct pe_info *pe) -{ - int i; - for (i = 0; i < pe->imp_count; ++i) { - struct pe_import_info *p = pe->imp_info[i]; - dynarray_reset(&p->symbols, &p->sym_count); - } - dynarray_reset(&pe->imp_info, &pe->imp_count); -} - -/*----------------------------------------------------------------------------*/ -static 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(IMAGE_IMPORT_DESCRIPTOR); - pe->iat_offs = dll_ptr + pe->imp_size; - pe->iat_size = (sym_cnt + ndlls) * sizeof(ADDR3264); - 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) { - IMAGE_IMPORT_DESCRIPTOR *hdr; - int k, n, dllindex; - ADDR3264 v; - struct pe_import_info *p = pe->imp_info[i]; - const char *name; - DLLReference *dllref; - - dllindex = p->dll_index; - if (dllindex) - name = (dllref = pe->s1->loaded_dlls[dllindex-1])->name; - else - name = "", dllref = NULL; - - /* put the dll name into the import header */ - v = put_elf_str(pe->thunk, name); - hdr = (IMAGE_IMPORT_DESCRIPTOR*)(pe->thunk->data + dll_ptr); - hdr->FirstThunk = thk_ptr + rva_base; - hdr->OriginalFirstThunk = ent_ptr + rva_base; - hdr->Name = v + rva_base; - - for (k = 0, n = p->sym_count; k <= n; ++k) { - if (k < n) { - int iat_index = p->symbols[k]->iat_index; - int sym_index = p->symbols[k]->sym_index; - ElfW(Sym) *imp_sym = (ElfW(Sym) *)pe->s1->dynsymtab_section->data + sym_index; - ElfW(Sym) *org_sym = (ElfW(Sym) *)symtab_section->data + iat_index; - const char *name = (char*)pe->s1->dynsymtab_section->link->data + imp_sym->st_name; - int ordinal; - - org_sym->st_value = thk_ptr; - org_sym->st_shndx = pe->thunk->sh_num; - - if (dllref) - v = 0, ordinal = imp_sym->st_value; /* ordinal from pe_load_def */ - else - ordinal = 0, v = imp_sym->st_value; /* address from tcc_add_symbol() */ - -#ifdef TCC_IS_NATIVE - if (pe->type == PE_RUN) { - if (dllref) { - if ( !dllref->handle ) - dllref->handle = LoadLibrary(dllref->name); - v = (ADDR3264)GetProcAddress(dllref->handle, ordinal?(char*)0+ordinal:name); - } - if (!v) - tcc_error_noabort("can't build symbol '%s'", name); - } else -#endif - if (ordinal) { - v = ordinal | (ADDR3264)1 << (sizeof(ADDR3264)*8 - 1); - } else { - 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 */ - } - - *(ADDR3264*)(pe->thunk->data+thk_ptr) = - *(ADDR3264*)(pe->thunk->data+ent_ptr) = v; - thk_ptr += sizeof (ADDR3264); - ent_ptr += sizeof (ADDR3264); - } - dll_ptr += sizeof(IMAGE_IMPORT_DESCRIPTOR); - } -} - -/* ------------------------------------------------------------- */ - -struct pe_sort_sym -{ - int index; - const char *name; -}; - -static int sym_cmp(const void *va, const void *vb) -{ - const char *ca = (*(struct pe_sort_sym**)va)->name; - const char *cb = (*(struct pe_sort_sym**)vb)->name; - return strcmp(ca, cb); -} - -static void pe_build_exports(struct pe_info *pe) -{ - ElfW(Sym) *sym; - int sym_index, sym_end; - DWORD rva_base, func_o, name_o, ord_o, str_o; - IMAGE_EXPORT_DIRECTORY *hdr; - int sym_count, ord; - struct pe_sort_sym **sorted, *p; - - FILE *op; - char buf[260]; - const char *dllname; - const char *name; - - rva_base = pe->thunk->sh_addr - pe->imagebase; - sym_count = 0, sorted = NULL, op = NULL; - - sym_end = symtab_section->data_offset / sizeof(ElfW(Sym)); - for (sym_index = 1; sym_index < sym_end; ++sym_index) { - sym = (ElfW(Sym)*)symtab_section->data + sym_index; - name = pe_export_name(pe->s1, sym); - if ((sym->st_other & ST_PE_EXPORT) - /* export only symbols from actually written sections */ - && pe->s1->sections[sym->st_shndx]->sh_addr) { - p = tcc_malloc(sizeof *p); - p->index = sym_index; - p->name = name; - dynarray_add(&sorted, &sym_count, p); - } -#if 0 - if (sym->st_other & ST_PE_EXPORT) - printf("export: %s\n", name); - if (sym->st_other & ST_PE_STDCALL) - printf("stdcall: %s\n", name); -#endif - } - - if (0 == sym_count) - return; - - qsort (sorted, sym_count, sizeof *sorted, 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(IMAGE_EXPORT_DIRECTORY); - 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 <output-filename>.def */ - pstrcpy(buf, sizeof buf, pe->filename); - strcpy(tcc_fileextension(buf), ".def"); - op = fopen(buf, "w"); - if (NULL == op) { - tcc_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 symbol%s)\n", buf, sym_count, &"s"[sym_count < 2]); - } -#endif - - for (ord = 0; ord < sym_count; ++ord) - { - p = sorted[ord], sym_index = p->index, name = p->name; - /* insert actual address later in pe_relocate_rva */ - put_elf_reloc(symtab_section, pe->thunk, - func_o, R_XXX_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; - dynarray_reset(&sorted, &sym_count); - if (op) - fclose(op); -} - -/* ------------------------------------------------------------- */ -static void pe_build_reloc (struct pe_info *pe) -{ - DWORD offset, block_ptr, addr; - int count, i; - ElfW_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 = ELFW(R_TYPE)(rel->r_info); - addr = rel->r_offset + s->sh_addr; - ++ rel; - if (type != REL_TYPE_DIRECT) - 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 | PE_IMAGE_REL<<12; - ++count; - continue; - } - -- rel; - - } else if (i < pe->sec_count) { - sr = (s = pe->s1->sections[pe->sec_info[i++].ord])->reloc; - if (sr) { - rel = (ElfW_Rel *)sr->data; - rel_end = (ElfW_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; - } -} - -/* ------------------------------------------------------------- */ -static 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; - if (0 == strcmp(name, ".pdata")) - return sec_pdata; - 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; -} - -static int pe_assign_addresses (struct pe_info *pe) -{ - int i, k, o, c; - DWORD addr; - int *section_order; - struct section_info *si; - Section *s; - - if (PE_DLL == pe->type) - pe->reloc = new_section(pe->s1, ".reloc", SHT_PROGBITS, 0); - - // 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) | (s->sh_addralign-1)) + 1; - addr += s->data_offset; - si[-1].sh_size = addr - si[-1].sh_addr; - continue; - } -#endif - if (c == sec_stab && 0 == pe->s1->do_debug) - continue; - - strcpy(si->name, s->name); - si->cls = c; - si->ord = k; - si->sh_addr = s->sh_addr = addr = pe_virtual_align(pe, 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_RELX ? "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; -} - -/* ------------------------------------------------------------- */ -static void pe_relocate_rva (struct pe_info *pe, Section *s) -{ - Section *sr = s->reloc; - ElfW_Rel *rel, *rel_end; - rel_end = (ElfW_Rel *)(sr->data + sr->data_offset); - for(rel = (ElfW_Rel *)sr->data; rel < rel_end; rel++) { - if (ELFW(R_TYPE)(rel->r_info) == R_XXX_RELATIVE) { - int sym_index = ELFW(R_SYM)(rel->r_info); - DWORD addr = s->sh_addr; - if (sym_index) { - ElfW(Sym) *sym = (ElfW(Sym) *)symtab_section->data + sym_index; - addr = sym->st_value; - } - // printf("reloc rva %08x %08x %s\n", (DWORD)rel->r_offset, addr, s->name); - *(DWORD*)(s->data + rel->r_offset) += addr - pe->imagebase; - } - } -} - -/*----------------------------------------------------------------------------*/ - -static int pe_isafunc(int sym_index) -{ - Section *sr = text_section->reloc; - ElfW_Rel *rel, *rel_end; - Elf32_Word info = ELF32_R_INFO(sym_index, R_386_PC32); - if (!sr) - return 0; - rel_end = (ElfW_Rel *)(sr->data + sr->data_offset); - for (rel = (ElfW_Rel *)sr->data; rel < rel_end; rel++) - if (rel->r_info == info) - return 1; - return 0; -} - -/*----------------------------------------------------------------------------*/ -static int pe_check_symbols(struct pe_info *pe) -{ - ElfW(Sym) *sym; - int sym_index, sym_end; - int ret = 0; - - pe_align_section(text_section, 8); - - sym_end = symtab_section->data_offset / sizeof(ElfW(Sym)); - for (sym_index = 1; sym_index < sym_end; ++sym_index) { - - sym = (ElfW(Sym) *)symtab_section->data + sym_index; - if (sym->st_shndx == SHN_UNDEF) { - - const char *name = (char*)symtab_section->link->data + sym->st_name; - unsigned type = ELFW(ST_TYPE)(sym->st_info); - int imp_sym = pe_find_import(pe->s1, sym); - struct import_symbol *is; - - if (imp_sym <= 0) - goto not_found; - - if (type == STT_NOTYPE) { - /* symbols from assembler have no type, find out which */ - if (pe_isafunc(sym_index)) - type = STT_FUNC; - else - type = STT_OBJECT; - } - - is = pe_add_import(pe, imp_sym); - - if (type == STT_FUNC) { - unsigned long offset = is->thk_offset; - if (offset) { - /* got aliased symbol, like stricmp and _stricmp */ - - } else { - char buffer[100]; - WORD *p; - - offset = text_section->data_offset; - /* add the 'jmp IAT[x]' instruction */ -#ifdef TCC_TARGET_ARM - p = section_ptr_add(text_section, 8+4); // room for code and address - (*(DWORD*)(p)) = 0xE59FC000; // arm code ldr ip, [pc] ; PC+8+0 = 0001xxxx - (*(DWORD*)(p+2)) = 0xE59CF000; // arm code ldr pc, [ip] -#else - p = section_ptr_add(text_section, 8); - *p = 0x25FF; -#ifdef TCC_TARGET_X86_64 - *(DWORD*)(p+1) = (DWORD)-4; -#endif -#endif - /* 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), - ELFW(ST_INFO)(STB_GLOBAL, STT_OBJECT), - 0, SHN_UNDEF, buffer); -#ifdef TCC_TARGET_ARM - put_elf_reloc(symtab_section, text_section, - offset + 8, R_XXX_THUNKFIX, is->iat_index); // offset to IAT position -#else - put_elf_reloc(symtab_section, text_section, - offset + 2, R_XXX_THUNKFIX, is->iat_index); -#endif - is->thk_offset = offset; - } - - /* tcc_realloc might have altered sym's address */ - sym = (ElfW(Sym) *)symtab_section->data + sym_index; - - /* patch the original symbol */ - sym->st_value = offset; - sym->st_shndx = text_section->sh_num; - sym->st_other &= ~ST_PE_EXPORT; /* 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: - if (ELFW(ST_BIND)(sym->st_info) == STB_WEAK) - /* STB_WEAK undefined symbols are accepted */ - continue; - tcc_error_noabort("undefined symbol '%s'%s", name, - imp_sym < 0 ? ", missing __declspec(dllimport)?":""); - ret = -1; - - } else if (pe->s1->rdynamic - && ELFW(ST_BIND)(sym->st_info) != STB_LOCAL) { - /* if -rdynamic option, then export all non local symbols */ - sym->st_other |= ST_PE_EXPORT; - } - } - return ret; -} - -/*----------------------------------------------------------------------------*/ -#ifdef PE_PRINT_SECTIONS -static void pe_print_section(FILE * f, Section * s) -{ - /* just if you're 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", (unsigned)s->sh_addr); - fprintf(f, "\ncontents %08X", (unsigned)l); - fprintf(f, "\n\n"); - - if (s->sh_type == SHT_NOBITS) - return; - - if (0 == l) - return; - - if (s->sh_type == SHT_SYMTAB) - m = sizeof(ElfW(Sym)); - else if (s->sh_type == SHT_RELX) - m = sizeof(ElfW_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_RELX) { - 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) { - ElfW(Sym) *sym = (ElfW(Sym) *) (p + i); - const char *name = s->link->data + sym->st_name; - fprintf(f, " %04X %04X %04X %02X %02X %02X %04X \"%s\"", - (unsigned)sym->st_name, - (unsigned)sym->st_value, - (unsigned)sym->st_size, - (unsigned)ELFW(ST_BIND)(sym->st_info), - (unsigned)ELFW(ST_TYPE)(sym->st_info), - (unsigned)sym->st_other, - (unsigned)sym->st_shndx, - name); - - } else if (s->sh_type == SHT_RELX) { - ElfW_Rel *rel = (ElfW_Rel *) (p + i); - ElfW(Sym) *sym = - (ElfW(Sym) *) s->link->data + ELFW(R_SYM)(rel->r_info); - const char *name = s->link->link->data + sym->st_name; - fprintf(f, " %04X %02X %04X \"%s\"", - (unsigned)rel->r_offset, - (unsigned)ELFW(R_TYPE)(rel->r_info), - (unsigned)ELFW(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"); -} - -static void pe_print_sections(TCCState *s1, const char *fname) -{ - Section *s; - FILE *f; - int i; - f = fopen(fname, "w"); - 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 - -/* ------------------------------------------------------------- */ -/* helper function for load/store to insert one more indirection */ - -#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64 -ST_FUNC SValue *pe_getimport(SValue *sv, SValue *v2) -{ - int r2; - if ((sv->r & (VT_VALMASK|VT_SYM)) != (VT_CONST|VT_SYM) || (sv->r2 != VT_CONST)) - return sv; - if (!sv->sym->a.dllimport) - return sv; - // printf("import %04x %04x %04x %s\n", sv->type.t, sv->sym->type.t, sv->r, get_tok_str(sv->sym->v, NULL)); - memset(v2, 0, sizeof *v2); - v2->type.t = VT_PTR; - v2->r = VT_CONST | VT_SYM | VT_LVAL; - v2->sym = sv->sym; - - r2 = get_reg(RC_INT); - load(r2, v2); - v2->r = r2; - if ((uint32_t)sv->c.i) { - vpushv(v2); - vpushi(sv->c.i); - gen_opi('+'); - *v2 = *vtop--; - } - v2->type.t = sv->type.t; - v2->r |= sv->r & VT_LVAL; - return v2; -} -#endif - -ST_FUNC int pe_putimport(TCCState *s1, int dllindex, const char *name, addr_t value) -{ - return set_elf_sym( - s1->dynsymtab_section, - value, - dllindex, /* st_size */ - ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), - 0, - value ? SHN_ABS : SHN_UNDEF, - name - ); -} - -static int add_dllref(TCCState *s1, const char *dllname) -{ - DLLReference *dllref; - int i; - for (i = 0; i < s1->nb_loaded_dlls; ++i) - if (0 == strcmp(s1->loaded_dlls[i]->name, dllname)) - return i + 1; - dllref = tcc_mallocz(sizeof(DLLReference) + strlen(dllname)); - strcpy(dllref->name, dllname); - dynarray_add(&s1->loaded_dlls, &s1->nb_loaded_dlls, dllref); - return s1->nb_loaded_dlls; -} - -/* ------------------------------------------------------------- */ - -static int read_mem(int fd, unsigned offset, void *buffer, unsigned len) -{ - lseek(fd, offset, SEEK_SET); - return len == read(fd, buffer, len); -} - -/* ------------------------------------------------------------- */ - -PUB_FUNC int tcc_get_dllexports(const char *filename, char **pp) -{ - int l, i, n, n0, ret; - char *p; - int fd; - - IMAGE_SECTION_HEADER ish; - IMAGE_EXPORT_DIRECTORY ied; - IMAGE_DOS_HEADER dh; - IMAGE_FILE_HEADER ih; - DWORD sig, ref, addr, ptr, namep; - - int pef_hdroffset, opt_hdroffset, sec_hdroffset; - - n = n0 = 0; - p = NULL; - ret = -1; - - fd = open(filename, O_RDONLY | O_BINARY); - if (fd < 0) - goto the_end_1; - ret = 1; - if (!read_mem(fd, 0, &dh, sizeof dh)) - goto the_end; - if (!read_mem(fd, dh.e_lfanew, &sig, sizeof sig)) - goto the_end; - if (sig != 0x00004550) - goto the_end; - pef_hdroffset = dh.e_lfanew + sizeof sig; - if (!read_mem(fd, pef_hdroffset, &ih, sizeof ih)) - goto the_end; - opt_hdroffset = pef_hdroffset + sizeof ih; - if (ih.Machine == 0x014C) { - IMAGE_OPTIONAL_HEADER32 oh; - sec_hdroffset = opt_hdroffset + sizeof oh; - if (!read_mem(fd, opt_hdroffset, &oh, sizeof oh)) - goto the_end; - if (IMAGE_DIRECTORY_ENTRY_EXPORT >= oh.NumberOfRvaAndSizes) - goto the_end_0; - addr = oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress; - } else if (ih.Machine == 0x8664) { - IMAGE_OPTIONAL_HEADER64 oh; - sec_hdroffset = opt_hdroffset + sizeof oh; - if (!read_mem(fd, opt_hdroffset, &oh, sizeof oh)) - goto the_end; - if (IMAGE_DIRECTORY_ENTRY_EXPORT >= oh.NumberOfRvaAndSizes) - goto the_end_0; - addr = oh.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress; - } else - goto the_end; - - //printf("addr: %08x\n", addr); - for (i = 0; i < ih.NumberOfSections; ++i) { - if (!read_mem(fd, sec_hdroffset + i * sizeof ish, &ish, sizeof ish)) - goto the_end; - //printf("vaddr: %08x\n", ish.VirtualAddress); - if (addr >= ish.VirtualAddress && addr < ish.VirtualAddress + ish.SizeOfRawData) - goto found; - } - goto the_end_0; - -found: - ref = ish.VirtualAddress - ish.PointerToRawData; - if (!read_mem(fd, addr - ref, &ied, sizeof ied)) - goto the_end; - - namep = ied.AddressOfNames - ref; - for (i = 0; i < ied.NumberOfNames; ++i) { - if (!read_mem(fd, namep, &ptr, sizeof ptr)) - goto the_end; - namep += sizeof ptr; - for (l = 0;;) { - if (n+1 >= n0) - p = tcc_realloc(p, n0 = n0 ? n0 * 2 : 256); - if (!read_mem(fd, ptr - ref + l++, p + n, 1)) { - tcc_free(p), p = NULL; - goto the_end; - } - if (p[n++] == 0) - break; - } - } - if (p) - p[n] = 0; -the_end_0: - ret = 0; -the_end: - close(fd); -the_end_1: - *pp = p; - return ret; -} - -/* ------------------------------------------------------------- - * This is for compiled windows resources in 'coff' format - * as generated by 'windres.exe -O coff ...'. - */ - -static int pe_load_res(TCCState *s1, int fd) -{ - struct pe_rsrc_header hdr; - Section *rsrc_section; - int i, ret = -1; - BYTE *ptr; - unsigned offs; - - if (!read_mem(fd, 0, &hdr, sizeof hdr)) - goto quit; - - if (hdr.filehdr.Machine != IMAGE_FILE_MACHINE - || hdr.filehdr.NumberOfSections != 1 - || strcmp((char*)hdr.sectionhdr.Name, ".rsrc") != 0) - goto quit; - - rsrc_section = new_section(s1, ".rsrc", SHT_PROGBITS, SHF_ALLOC); - ptr = section_ptr_add(rsrc_section, hdr.sectionhdr.SizeOfRawData); - offs = hdr.sectionhdr.PointerToRawData; - if (!read_mem(fd, offs, ptr, hdr.sectionhdr.SizeOfRawData)) - goto quit; - offs = hdr.sectionhdr.PointerToRelocations; - for (i = 0; i < hdr.sectionhdr.NumberOfRelocations; ++i) - { - struct pe_rsrc_reloc rel; - if (!read_mem(fd, offs, &rel, sizeof rel)) - goto quit; - // printf("rsrc_reloc: %x %x %x\n", rel.offset, rel.size, rel.type); - if (rel.type != RSRC_RELTYPE) - goto quit; - put_elf_reloc(symtab_section, rsrc_section, - rel.offset, R_XXX_RELATIVE, 0); - offs += sizeof rel; - } - ret = 0; -quit: - return ret; -} - -/* ------------------------------------------------------------- */ - -static char *trimfront(char *p) -{ - while (*p && (unsigned char)*p <= ' ') - ++p; - return p; -} - -static char *trimback(char *a, char *e) -{ - while (e > a && (unsigned char)e[-1] <= ' ') - --e; - *e = 0;; - return a; -} - -/* ------------------------------------------------------------- */ -static int pe_load_def(TCCState *s1, int fd) -{ - int state = 0, ret = -1, dllindex = 0, ord; - char line[400], dllname[80], *p, *x; - FILE *fp; - - fp = fdopen(dup(fd), "rb"); - while (fgets(line, sizeof line, fp)) - { - p = trimfront(trimback(line, strchr(line, 0))); - if (0 == *p || ';' == *p) - continue; - - switch (state) { - case 0: - if (0 != strnicmp(p, "LIBRARY", 7)) - goto quit; - pstrcpy(dllname, sizeof dllname, trimfront(p+7)); - ++state; - continue; - - case 1: - if (0 != stricmp(p, "EXPORTS")) - goto quit; - ++state; - continue; - - case 2: - dllindex = add_dllref(s1, dllname); - ++state; - /* fall through */ - default: - /* get ordinal and will store in sym->st_value */ - ord = 0; - x = strchr(p, ' '); - if (x) { - *x = 0, x = strrchr(x + 1, '@'); - if (x) { - char *d; - ord = (int)strtol(x + 1, &d, 10); - if (*d) - ord = 0; - } - } - pe_putimport(s1, dllindex, p, ord); - continue; - } - } - ret = 0; -quit: - fclose(fp); - return ret; -} - -/* ------------------------------------------------------------- */ -static int pe_load_dll(TCCState *s1, const char *filename) -{ - char *p, *q; - int index, ret; - - ret = tcc_get_dllexports(filename, &p); - if (ret) { - return -1; - } else if (p) { - index = add_dllref(s1, tcc_basename(filename)); - for (q = p; *q; q += 1 + strlen(q)) - pe_putimport(s1, index, q, 0); - tcc_free(p); - } - return 0; -} - -/* ------------------------------------------------------------- */ -ST_FUNC int pe_load_file(struct TCCState *s1, const char *filename, int fd) -{ - int ret = -1; - char buf[10]; - if (0 == strcmp(tcc_fileextension(filename), ".def")) - ret = pe_load_def(s1, fd); - else if (pe_load_res(s1, fd) == 0) - ret = 0; - else if (read_mem(fd, 0, buf, 4) && 0 == memcmp(buf, "MZ\220", 4)) - ret = pe_load_dll(s1, filename); - return ret; -} - -/* ------------------------------------------------------------- */ -#ifdef TCC_TARGET_X86_64 -static unsigned pe_add_uwwind_info(TCCState *s1) -{ - if (NULL == s1->uw_pdata) { - s1->uw_pdata = find_section(tcc_state, ".pdata"); - s1->uw_pdata->sh_addralign = 4; - s1->uw_sym = put_elf_sym(symtab_section, 0, 0, 0, 0, text_section->sh_num, NULL); - } - - if (0 == s1->uw_offs) { - /* As our functions all have the same stackframe, we use one entry for all */ - static const unsigned char uw_info[] = { - 0x01, // UBYTE: 3 Version , UBYTE: 5 Flags - 0x04, // UBYTE Size of prolog - 0x02, // UBYTE Count of unwind codes - 0x05, // UBYTE: 4 Frame Register (rbp), UBYTE: 4 Frame Register offset (scaled) - // USHORT * n Unwind codes array - // 0x0b, 0x01, 0xff, 0xff, // stack size - 0x04, 0x03, // set frame ptr (mov rsp -> rbp) - 0x01, 0x50 // push reg (rbp) - }; - - Section *s = text_section; - unsigned char *p; - - section_ptr_add(s, -s->data_offset & 3); /* align */ - s1->uw_offs = s->data_offset; - p = section_ptr_add(s, sizeof uw_info); - memcpy(p, uw_info, sizeof uw_info); - } - - return s1->uw_offs; -} - -ST_FUNC void pe_add_unwind_data(unsigned start, unsigned end, unsigned stack) -{ - TCCState *s1 = tcc_state; - Section *pd; - unsigned o, n, d; - struct /* _RUNTIME_FUNCTION */ { - DWORD BeginAddress; - DWORD EndAddress; - DWORD UnwindData; - } *p; - - d = pe_add_uwwind_info(s1); - pd = s1->uw_pdata; - o = pd->data_offset; - p = section_ptr_add(pd, sizeof *p); - - /* record this function */ - p->BeginAddress = start; - p->EndAddress = end; - p->UnwindData = d; - - /* put relocations on it */ - for (n = o + sizeof *p; o < n; o += sizeof p->BeginAddress) - put_elf_reloc(symtab_section, pd, o, R_X86_64_RELATIVE, s1->uw_sym); -} -#endif -/* ------------------------------------------------------------- */ -#ifdef TCC_TARGET_X86_64 -#define PE_STDSYM(n,s) n -#else -#define PE_STDSYM(n,s) "_" n s -#endif - -static void pe_add_runtime(TCCState *s1, struct pe_info *pe) -{ - const char *start_symbol; - int pe_type = 0; - int unicode_entry = 0; - - if (find_elf_sym(symtab_section, PE_STDSYM("WinMain","@16"))) - pe_type = PE_GUI; - else - if (find_elf_sym(symtab_section, PE_STDSYM("wWinMain","@16"))) { - pe_type = PE_GUI; - unicode_entry = 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; - } - else { - pe_type = PE_EXE; - if (find_elf_sym(symtab_section, "wmain")) - unicode_entry = PE_EXE; - } - - start_symbol = - TCC_OUTPUT_MEMORY == s1->output_type - ? PE_GUI == pe_type ? (unicode_entry ? "__runwwinmain" : "__runwinmain") - : (unicode_entry ? "__runwmain" : "__runmain") - : PE_DLL == pe_type ? PE_STDSYM("__dllstart","@12") - : PE_GUI == pe_type ? (unicode_entry ? "__wwinstart": "__winstart") - : (unicode_entry ? "__wstart" : "__start") - ; - - if (!s1->leading_underscore || strchr(start_symbol, '@')) - ++start_symbol; - - /* grab the startup code from libtcc1 */ -#ifdef TCC_IS_NATIVE - if (TCC_OUTPUT_MEMORY != s1->output_type || s1->runtime_main) -#endif - set_elf_sym(symtab_section, - 0, 0, - ELFW(ST_INFO)(STB_GLOBAL, STT_NOTYPE), 0, - SHN_UNDEF, start_symbol); - - tcc_add_pragma_libs(s1); - - if (0 == s1->nostdlib) { - static const char *libs[] = { - TCC_LIBTCC1, "msvcrt", "kernel32", "", "user32", "gdi32", NULL - }; - const char **pp, *p; - for (pp = libs; 0 != (p = *pp); ++pp) { - if (0 == *p) { - if (PE_DLL != pe_type && PE_GUI != pe_type) - break; - } else if (pp == libs && tcc_add_dll(s1, p, 0) >= 0) { - continue; - } else { - tcc_add_library_err(s1, p); - } - } - } - - if (TCC_OUTPUT_MEMORY == s1->output_type) - pe_type = PE_RUN; - pe->type = pe_type; - pe->start_symbol = start_symbol; -} - -static void pe_set_options(TCCState * s1, struct pe_info *pe) -{ - if (PE_DLL == pe->type) { - /* XXX: check if is correct for arm-pe target */ - pe->imagebase = 0x10000000; - } else { -#if defined(TCC_TARGET_ARM) - pe->imagebase = 0x00010000; -#else - pe->imagebase = 0x00400000; -#endif - } - -#if defined(TCC_TARGET_ARM) - /* we use "console" subsystem by default */ - pe->subsystem = 9; -#else - if (PE_DLL == pe->type || PE_GUI == pe->type) - pe->subsystem = 2; - else - pe->subsystem = 3; -#endif - /* Allow override via -Wl,-subsystem=... option */ - if (s1->pe_subsystem != 0) - pe->subsystem = s1->pe_subsystem; - - /* set default file/section alignment */ - if (pe->subsystem == 1) { - pe->section_align = 0x20; - pe->file_align = 0x20; - } else { - pe->section_align = 0x1000; - pe->file_align = 0x200; - } - - if (s1->section_align != 0) - pe->section_align = s1->section_align; - if (s1->pe_file_align != 0) - pe->file_align = s1->pe_file_align; - - if ((pe->subsystem >= 10) && (pe->subsystem <= 12)) - pe->imagebase = 0; - - if (s1->has_text_addr) - pe->imagebase = s1->text_addr; -} - -ST_FUNC 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; - - tcc_add_bcheck(s1); - pe_add_runtime(s1, &pe); - relocate_common_syms(); /* assign bss addresses */ - tcc_add_linker_symbols(s1); - pe_set_options(s1, &pe); - - ret = pe_check_symbols(&pe); - if (ret) - ; - else if (filename) { - pe_assign_addresses(&pe); - relocate_syms(s1, s1->symtab, 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); - } - } - pe.start_addr = (DWORD) - ((uintptr_t)tcc_get_symbol_err(s1, pe.start_symbol) - - pe.imagebase); - if (s1->nb_errors) - ret = -1; - else - ret = pe_write(&pe); - tcc_free(pe.sec_info); - } else { -#ifdef TCC_IS_NATIVE - pe.thunk = data_section; - pe_build_imports(&pe); - s1->runtime_main = pe.start_symbol; -#endif - } - - pe_free_imports(&pe); - -#ifdef PE_PRINT_SECTIONS - pe_print_sections(s1, "tcc.log"); -#endif - return ret; -} - -/* ------------------------------------------------------------- */ |