forked from KolibriOS/kolibrios
16f5992719
New functions for work with system calls KolibriOS are added. Functions for format output are added: printf (), fprintf (), sprintf (), snprintf (), vsnprintf (). For material numbers it is meanwhile supported only format output the (%f), and exponential output a (%e) is not realized yet. Functions for format output correctly work only in GCC because TinyC incorrectly works with the functions containing variable number of arguments. git-svn-id: svn://kolibrios.org@647 a494cfbc-eb01-0410-851d-a64ba20cac60
1245 lines
35 KiB
C
1245 lines
35 KiB
C
/*
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* TCCPE.C - PE file output for the TinyC Compiler
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*
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* Copyright (c) 2005 grischka
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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typedef unsigned char BYTE;
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typedef unsigned short WORD;
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typedef unsigned long DWORD;
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#define ST static
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/* XXX: move that to TCC ? */
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int verbose = 0;
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/* definitions below are from winnt.h */
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typedef struct _IMAGE_DOS_HEADER { /* DOS .EXE header */
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WORD e_magic; /* Magic number */
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WORD e_cblp; /* Bytes on last page of file */
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WORD e_cp; /* Pages in file */
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WORD e_crlc; /* Relocations */
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WORD e_cparhdr; /* Size of header in paragraphs */
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WORD e_minalloc; /* Minimum extra paragraphs needed */
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WORD e_maxalloc; /* Maximum extra paragraphs needed */
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WORD e_ss; /* Initial (relative) SS value */
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WORD e_sp; /* Initial SP value */
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WORD e_csum; /* Checksum */
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WORD e_ip; /* Initial IP value */
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WORD e_cs; /* Initial (relative) CS value */
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WORD e_lfarlc; /* File address of relocation table */
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WORD e_ovno; /* Overlay number */
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WORD e_res[4]; /* Reserved words */
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WORD e_oemid; /* OEM identifier (for e_oeminfo) */
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WORD e_oeminfo; /* OEM information; e_oemid specific */
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WORD e_res2[10]; /* Reserved words */
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DWORD e_lfanew; /* File address of new exe header */
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BYTE e_code[0x40];
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} IMAGE_DOS_HEADER, *PIMAGE_DOS_HEADER;
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#define IMAGE_NT_SIGNATURE 0x00004550 /* PE00 */
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#define SIZE_OF_NT_SIGNATURE 4
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typedef struct _IMAGE_FILE_HEADER {
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WORD Machine;
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WORD NumberOfSections;
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DWORD TimeDateStamp;
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DWORD PointerToSymbolTable;
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DWORD NumberOfSymbols;
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WORD SizeOfOptionalHeader;
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WORD Characteristics;
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} IMAGE_FILE_HEADER, *PIMAGE_FILE_HEADER;
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#define IMAGE_SIZEOF_FILE_HEADER 20
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typedef struct _IMAGE_DATA_DIRECTORY {
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DWORD VirtualAddress;
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DWORD Size;
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} IMAGE_DATA_DIRECTORY, *PIMAGE_DATA_DIRECTORY;
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typedef struct _IMAGE_OPTIONAL_HEADER {
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/* Standard fields. */
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WORD Magic;
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BYTE MajorLinkerVersion;
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BYTE MinorLinkerVersion;
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DWORD SizeOfCode;
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DWORD SizeOfInitializedData;
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DWORD SizeOfUninitializedData;
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DWORD AddressOfEntryPoint;
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DWORD BaseOfCode;
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DWORD BaseOfData;
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/* NT additional fields. */
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DWORD ImageBase;
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DWORD SectionAlignment;
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DWORD FileAlignment;
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WORD MajorOperatingSystemVersion;
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WORD MinorOperatingSystemVersion;
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WORD MajorImageVersion;
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WORD MinorImageVersion;
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WORD MajorSubsystemVersion;
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WORD MinorSubsystemVersion;
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DWORD Win32VersionValue;
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DWORD SizeOfImage;
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DWORD SizeOfHeaders;
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DWORD CheckSum;
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WORD Subsystem;
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WORD DllCharacteristics;
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DWORD SizeOfStackReserve;
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DWORD SizeOfStackCommit;
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DWORD SizeOfHeapReserve;
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DWORD SizeOfHeapCommit;
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DWORD LoaderFlags;
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DWORD NumberOfRvaAndSizes;
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IMAGE_DATA_DIRECTORY DataDirectory[16];
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} IMAGE_OPTIONAL_HEADER32, *PIMAGE_OPTIONAL_HEADER32;
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#define IMAGE_DIRECTORY_ENTRY_EXPORT 0 /* Export Directory */
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#define IMAGE_DIRECTORY_ENTRY_IMPORT 1 /* Import Directory */
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#define IMAGE_DIRECTORY_ENTRY_RESOURCE 2 /* Resource Directory */
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#define IMAGE_DIRECTORY_ENTRY_EXCEPTION 3 /* Exception Directory */
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#define IMAGE_DIRECTORY_ENTRY_SECURITY 4 /* Security Directory */
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#define IMAGE_DIRECTORY_ENTRY_BASERELOC 5 /* Base Relocation Table */
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#define IMAGE_DIRECTORY_ENTRY_DEBUG 6 /* Debug Directory */
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/* IMAGE_DIRECTORY_ENTRY_COPYRIGHT 7 (X86 usage) */
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#define IMAGE_DIRECTORY_ENTRY_ARCHITECTURE 7 /* Architecture Specific Data */
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#define IMAGE_DIRECTORY_ENTRY_GLOBALPTR 8 /* RVA of GP */
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#define IMAGE_DIRECTORY_ENTRY_TLS 9 /* TLS Directory */
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#define IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG 10 /* Load Configuration Directory */
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#define IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT 11 /* Bound Import Directory in headers */
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#define IMAGE_DIRECTORY_ENTRY_IAT 12 /* Import Address Table */
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#define IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT 13 /* Delay Load Import Descriptors */
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#define IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR 14 /* COM Runtime descriptor */
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/* Section header format. */
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#define IMAGE_SIZEOF_SHORT_NAME 8
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typedef struct _IMAGE_SECTION_HEADER {
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BYTE Name[IMAGE_SIZEOF_SHORT_NAME];
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union {
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DWORD PhysicalAddress;
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DWORD VirtualSize;
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} Misc;
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DWORD VirtualAddress;
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DWORD SizeOfRawData;
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DWORD PointerToRawData;
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DWORD PointerToRelocations;
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DWORD PointerToLinenumbers;
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WORD NumberOfRelocations;
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WORD NumberOfLinenumbers;
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DWORD Characteristics;
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} IMAGE_SECTION_HEADER, *PIMAGE_SECTION_HEADER;
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#define IMAGE_SIZEOF_SECTION_HEADER 40
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/* ----------------------------------------------------------- */
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typedef struct _IMAGE_BASE_RELOCATION {
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DWORD VirtualAddress;
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DWORD SizeOfBlock;
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// WORD TypeOffset[1];
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} IMAGE_BASE_RELOCATION;
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#define IMAGE_SIZEOF_BASE_RELOCATION 8
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#define IMAGE_REL_BASED_ABSOLUTE 0
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#define IMAGE_REL_BASED_HIGH 1
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#define IMAGE_REL_BASED_LOW 2
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#define IMAGE_REL_BASED_HIGHLOW 3
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#define IMAGE_REL_BASED_HIGHADJ 4
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#define IMAGE_REL_BASED_MIPS_JMPADDR 5
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#define IMAGE_REL_BASED_SECTION 6
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#define IMAGE_REL_BASED_REL32 7
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/* ----------------------------------------------------------- */
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/* ----------------------------------------------------------- */
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IMAGE_DOS_HEADER pe_dos_hdr = {
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0x5A4D, /*WORD e_magic; Magic number */
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0x0090, /*WORD e_cblp; Bytes on last page of file */
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0x0003, /*WORD e_cp; Pages in file */
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0x0000, /*WORD e_crlc; Relocations */
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0x0004, /*WORD e_cparhdr; Size of header in paragraphs */
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0x0000, /*WORD e_minalloc; Minimum extra paragraphs needed */
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0xFFFF, /*WORD e_maxalloc; Maximum extra paragraphs needed */
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0x0000, /*WORD e_ss; Initial (relative) SS value */
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0x00B8, /*WORD e_sp; Initial SP value */
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0x0000, /*WORD e_csum; Checksum */
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0x0000, /*WORD e_ip; Initial IP value */
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0x0000, /*WORD e_cs; Initial (relative) CS value */
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0x0040, /*WORD e_lfarlc; File address of relocation table */
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0x0000, /*WORD e_ovno; Overlay number */
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{0, 0, 0, 0}, /*WORD e_res[4]; Reserved words */
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0x0000, /*WORD e_oemid; OEM identifier (for e_oeminfo) */
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0x0000, /*WORD e_oeminfo; OEM information; e_oemid specific */
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, /*WORD e_res2[10]; Reserved words */
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0x00000080, /*DWORD e_lfanew; File address of new exe header */
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{ /* 14 code bytes + "This program cannot be run in DOS mode.\r\r\n$" + 6 * 0x00 */
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/*0040 */ 0x0e, 0x1f, 0xba, 0x0e, 0x00, 0xb4, 0x09, 0xcd, 0x21, 0xb8,
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0x01, 0x4c, 0xcd, 0x21, 0x54, 0x68,
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/*0050 */ 0x69, 0x73, 0x20, 0x70, 0x72, 0x6f, 0x67, 0x72, 0x61, 0x6d,
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0x20, 0x63, 0x61, 0x6e, 0x6e, 0x6f,
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/*0060 */ 0x74, 0x20, 0x62, 0x65, 0x20, 0x72, 0x75, 0x6e, 0x20, 0x69,
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0x6e, 0x20, 0x44, 0x4f, 0x53, 0x20,
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/*0070 */ 0x6d, 0x6f, 0x64, 0x65, 0x2e, 0x0d, 0x0d, 0x0a, 0x24, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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/*0080 */
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}
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};
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DWORD pe_magic = IMAGE_NT_SIGNATURE;
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IMAGE_FILE_HEADER pe_file_hdr = {
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0x014C, /*WORD Machine; */
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0x0003, /*WORD NumberOfSections; */
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0x00000000, /*DWORD TimeDateStamp; */
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0x00000000, /*DWORD PointerToSymbolTable; */
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0x00000000, /*DWORD NumberOfSymbols; */
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0x00E0, /*WORD SizeOfOptionalHeader; */
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0x030F /*WORD Characteristics; */
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};
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IMAGE_OPTIONAL_HEADER32 pe_opt_hdr = {
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/* Standard fields. */
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0x010B, /*WORD Magic; */
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0x06, /*BYTE MajorLinkerVersion; */
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0x00, /*BYTE MinorLinkerVersion; */
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0x00000000, /*DWORD SizeOfCode; */
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0x00000000, /*DWORD SizeOfInitializedData; */
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0x00000000, /*DWORD SizeOfUninitializedData; */
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0x00000000, /*DWORD AddressOfEntryPoint; */
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0x00000000, /*DWORD BaseOfCode; */
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0x00000000, /*DWORD BaseOfData; */
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/* NT additional fields. */
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0x00400000, /*DWORD ImageBase; */
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0x00001000, /*DWORD SectionAlignment; */
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0x00000200, /*DWORD FileAlignment; */
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0x0004, /*WORD MajorOperatingSystemVersion; */
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0x0000, /*WORD MinorOperatingSystemVersion; */
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0x0000, /*WORD MajorImageVersion; */
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0x0000, /*WORD MinorImageVersion; */
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0x0004, /*WORD MajorSubsystemVersion; */
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0x0000, /*WORD MinorSubsystemVersion; */
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0x00000000, /*DWORD Win32VersionValue; */
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0x00000000, /*DWORD SizeOfImage; */
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0x00000200, /*DWORD SizeOfHeaders; */
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0x00000000, /*DWORD CheckSum; */
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0x0002, /*WORD Subsystem; */
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0x0000, /*WORD DllCharacteristics; */
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0x00100000, /*DWORD SizeOfStackReserve; */
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0x00001000, /*DWORD SizeOfStackCommit; */
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0x00100000, /*DWORD SizeOfHeapReserve; */
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0x00001000, /*DWORD SizeOfHeapCommit; */
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0x00000000, /*DWORD LoaderFlags; */
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0x00000010, /*DWORD NumberOfRvaAndSizes; */
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/* IMAGE_DATA_DIRECTORY DataDirectory[16]; */
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{{0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0},
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{0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}}
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};
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/*----------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------*/
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struct pe_import_header {
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DWORD first_entry;
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DWORD time_date;
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DWORD forwarder;
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DWORD lib_name_offset;
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DWORD first_thunk;
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};
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struct pe_export_header {
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DWORD Characteristics;
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DWORD TimeDateStamp;
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DWORD Version;
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DWORD Name;
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DWORD Base;
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DWORD NumberOfFunctions;
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DWORD NumberOfNames;
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DWORD AddressOfFunctions;
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DWORD AddressOfNames;
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DWORD AddressOfNameOrdinals;
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};
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struct pe_reloc_header {
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DWORD offset;
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DWORD size;
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};
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/* ------------------------------------------------------------- */
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/* internal temporary structures */
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ST const char *pe_sec_names[] = {
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".text",
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".data",
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".bss",
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".rsrc",
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".reloc",
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".stab",
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".stabstr"
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};
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enum {
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sec_text = 0,
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sec_data,
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sec_bss,
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sec_rsrc,
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sec_reloc,
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sec_stab,
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sec_stabstr,
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pe_sec_number
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};
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ST DWORD pe_flags[] = {
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0x60000020, /* ".text", */
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0xC0000040, /* ".data", */
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0xC0000080, /* ".bss", */
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0x40000040, /* ".rsrc", */
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0x42000040, /* ".reloc", */
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0x42000802, /* ".stab", */
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0x42000802 /* ".stabstr", */
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};
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struct section_info {
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struct section_info *next;
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int id;
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DWORD sh_addr;
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DWORD sh_size;
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unsigned char *data;
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DWORD data_size;
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};
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struct import_symbol {
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int sym_index;
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int offset;
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};
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struct pe_import_info {
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int dll_index;
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int sym_count;
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struct import_symbol **symbols;
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};
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struct pe_info {
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const char *filename;
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DWORD sizeofheaders;
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DWORD imagebase;
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DWORD start_addr;
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DWORD imp_offs;
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DWORD imp_size;
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DWORD iat_offs;
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DWORD iat_size;
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DWORD exp_offs;
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DWORD exp_size;
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struct section_info sh_info[pe_sec_number];
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int sec_count;
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struct pe_import_info **imp_info;
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int imp_count;
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Section *reloc;
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Section *thunk;
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TCCState *s1;
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};
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/* ------------------------------------------------------------- */
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#define PE_MERGE_DATA
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// #define PE_PRINT_SECTIONS
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#ifndef MAX_PATH
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#define MAX_PATH 260
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#endif
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void error_noabort(const char *, ...);
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ST char pe_type;
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#define PE_NUL 0
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#define PE_DLL 1
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#define PE_GUI 2
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#define PE_EXE 3
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ST int pe_find_import(TCCState * s1, const char *symbol, char *ret)
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{
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int sym_index = find_elf_sym(s1->dynsymtab_section, symbol);
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if (0 == sym_index) {
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/* Hm, maybe it's '_symbol' instead of 'symbol' or '__imp__symbol' */
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char buffer[100];
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if (0 == memcmp(symbol, "__imp__", 7))
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symbol += 6;
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else
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buffer[0] = '_', strcpy(buffer + 1, symbol), symbol = buffer;
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sym_index = find_elf_sym(s1->dynsymtab_section, symbol);
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}
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if (ret)
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strcpy(ret, symbol);
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return sym_index;
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}
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#ifdef WIN32
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ST void **pe_imp;
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ST int nb_pe_imp;
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void *resolve_sym(struct TCCState *s1, const char *symbol, int type)
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{
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char buffer[100], *p = buffer;
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void *a = NULL;
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int sym_index = pe_find_import(s1, symbol, p);
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int dll_index;
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const char *dll_name;
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void *hm;
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if (sym_index) {
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dll_index = ((Elf32_Sym *) s1->dynsymtab_section->data)[sym_index].
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st_other;
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dll_name = s1->loaded_dlls[dll_index]->name;
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hm = GetModuleHandleA(dll_name);
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if (NULL == hm)
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hm = LoadLibraryA(dll_name);
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if (hm) {
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a = GetProcAddress(hm, buffer);
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if (a && STT_OBJECT == type) {
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// need to return a pointer to the address for data objects
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dynarray_add(&pe_imp, &nb_pe_imp, a);
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a = &pe_imp[nb_pe_imp - 1];
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}
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}
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}
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return a;
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}
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#endif
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#define for_sym_in_symtab(sym) \
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for (sym = (Elf32_Sym *)symtab_section->data + 1; \
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sym < (Elf32_Sym *)(symtab_section->data + \
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symtab_section->data_offset); \
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++sym)
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#define pe_set_datadir(dir,addr,size) \
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pe_opt_hdr.DataDirectory[dir].VirtualAddress = addr, \
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pe_opt_hdr.DataDirectory[dir].Size = size
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|
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/*----------------------------------------------------------------------------*/
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ST void dynarray_reset(void ***pp, int *n)
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{
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int i;
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for (i = 0; i < *n; ++i)
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tcc_free((*pp)[i]);
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tcc_free(*pp);
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*pp = NULL;
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*n = 0;
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}
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ST int dynarray_assoc(void **pp, int n, int key)
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{
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int i;
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for (i = 0; i < n; ++i, ++pp)
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if (key == **(int **) pp)
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return i;
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return -1;
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}
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#if 0
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ST DWORD umin(DWORD a, DWORD b)
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{
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return a < b ? a : b;
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}
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#endif
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ST DWORD umax(DWORD a, DWORD b)
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{
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return a < b ? b : a;
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}
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ST void pe_fpad(FILE * fp, DWORD new_pos)
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{
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DWORD pos = ftell(fp);
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while (++pos <= new_pos)
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fputc(0, fp);
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}
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ST DWORD pe_file_align(DWORD n)
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{
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return (n + (0x200 - 1)) & ~(0x200 - 1);
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}
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ST DWORD pe_virtual_align(DWORD n)
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{
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return (n + (0x1000 - 1)) & ~(0x1000 - 1);
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}
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|
|
|
ST void pe_align_section(Section * s, int a)
|
|
{
|
|
int i = s->data_offset & (a - 1);
|
|
if (i)
|
|
section_ptr_add(s, a - i);
|
|
}
|
|
|
|
|
|
/*----------------------------------------------------------------------------*/
|
|
ST int pe_write_pe(struct pe_info *pe)
|
|
{
|
|
int i;
|
|
FILE *op;
|
|
DWORD file_offset;
|
|
IMAGE_SECTION_HEADER ish[pe_sec_number], *psh;
|
|
int sec_index = 0;
|
|
|
|
op = fopen(pe->filename, "wb");
|
|
if (NULL == op) {
|
|
error_noabort("could not create file: %s", pe->filename);
|
|
return 1;
|
|
}
|
|
|
|
memset(&ish, 0, sizeof ish);
|
|
|
|
pe->sizeofheaders = pe_file_align(sizeof pe_dos_hdr
|
|
+ sizeof pe_magic
|
|
+ sizeof pe_file_hdr
|
|
+ sizeof pe_opt_hdr
|
|
+
|
|
pe->sec_count *
|
|
sizeof(IMAGE_SECTION_HEADER)
|
|
);
|
|
|
|
file_offset = pe->sizeofheaders;
|
|
pe_fpad(op, file_offset);
|
|
|
|
if (2 == verbose)
|
|
printf("-------------------------------"
|
|
"\n virt file size section" "\n");
|
|
|
|
for (i = 0; i < pe->sec_count; ++i) {
|
|
struct section_info *si = pe->sh_info + i;
|
|
const char *sh_name = pe_sec_names[si->id];
|
|
unsigned long addr = si->sh_addr - pe->imagebase;
|
|
unsigned long size = si->sh_size;
|
|
|
|
if (2 == verbose)
|
|
printf("%6lx %6lx %6lx %s\n",
|
|
addr, file_offset, size, sh_name);
|
|
|
|
switch (si->id) {
|
|
case sec_text:
|
|
pe_opt_hdr.BaseOfCode = addr;
|
|
pe_opt_hdr.AddressOfEntryPoint = addr + pe->start_addr;
|
|
break;
|
|
|
|
case sec_data:
|
|
pe_opt_hdr.BaseOfData = addr;
|
|
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);
|
|
}
|
|
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;
|
|
|
|
case sec_stabstr:
|
|
break;
|
|
}
|
|
|
|
psh = &ish[sec_index++];
|
|
strcpy((char *) psh->Name, sh_name);
|
|
|
|
psh->Characteristics = pe_flags[si->id];
|
|
psh->VirtualAddress = addr;
|
|
psh->Misc.VirtualSize = size;
|
|
pe_opt_hdr.SizeOfImage =
|
|
umax(psh->VirtualAddress + psh->Misc.VirtualSize,
|
|
pe_opt_hdr.SizeOfImage);
|
|
|
|
if (si->data_size) {
|
|
psh->PointerToRawData = file_offset;
|
|
fwrite(si->data, 1, si->data_size, op);
|
|
file_offset = pe_file_align(file_offset + si->data_size);
|
|
psh->SizeOfRawData = file_offset - psh->PointerToRawData;
|
|
pe_fpad(op, file_offset);
|
|
}
|
|
}
|
|
|
|
/*----------------------------------------------------- */
|
|
|
|
pe_file_hdr.NumberOfSections = sec_index;
|
|
pe_opt_hdr.SizeOfHeaders = pe->sizeofheaders;
|
|
pe_opt_hdr.ImageBase = pe->imagebase;
|
|
if (PE_DLL == pe_type)
|
|
pe_file_hdr.Characteristics = 0x230E;
|
|
else if (PE_GUI != pe_type)
|
|
pe_opt_hdr.Subsystem = 3;
|
|
|
|
fseek(op, SEEK_SET, 0);
|
|
fwrite(&pe_dos_hdr, 1, sizeof pe_dos_hdr, op);
|
|
fwrite(&pe_magic, 1, sizeof pe_magic, op);
|
|
fwrite(&pe_file_hdr, 1, sizeof pe_file_hdr, op);
|
|
fwrite(&pe_opt_hdr, 1, sizeof pe_opt_hdr, op);
|
|
for (i = 0; i < sec_index; ++i)
|
|
fwrite(&ish[i], 1, sizeof(IMAGE_SECTION_HEADER), op);
|
|
fclose(op);
|
|
|
|
if (2 == verbose)
|
|
printf("-------------------------------\n");
|
|
if (verbose)
|
|
printf("<-- %s (%lu bytes)\n", pe->filename, file_offset);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------------*/
|
|
ST int pe_add_import(struct pe_info *pe, int sym_index, DWORD offset)
|
|
{
|
|
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_other;
|
|
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)
|
|
goto found_sym;
|
|
s = tcc_mallocz(sizeof *s);
|
|
s->sym_index = sym_index;
|
|
s->offset = offset;
|
|
dynarray_add((void ***) &p->symbols, &p->sym_count, s);
|
|
|
|
found_sym:
|
|
return 1;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------------*/
|
|
ST void pe_build_imports(struct pe_info *pe)
|
|
{
|
|
int thk_ptr, ent_ptr, dll_ptr, sym_cnt, i;
|
|
DWORD voffset = 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]->name;
|
|
|
|
/* put the dll name into the import header */
|
|
if (0 == strncmp(name, "lib", 3))
|
|
name += 3;
|
|
v = put_elf_str(pe->thunk, name);
|
|
|
|
hdr = (struct pe_import_header *) (pe->thunk->data + dll_ptr);
|
|
hdr->first_thunk = thk_ptr + voffset;
|
|
hdr->first_entry = ent_ptr + voffset;
|
|
hdr->lib_name_offset = v + voffset;
|
|
|
|
for (k = 0, n = p->sym_count; k <= n; ++k) {
|
|
if (k < n) {
|
|
DWORD offset = p->symbols[k]->offset;
|
|
int sym_index = p->symbols[k]->sym_index;
|
|
Elf32_Sym *sym =
|
|
(Elf32_Sym *) pe->s1->dynsymtab_section->data +
|
|
sym_index;
|
|
const char *name =
|
|
pe->s1->dynsymtab_section->link->data + sym->st_name;
|
|
|
|
if (offset & 0x80000000) { /* ref to data */
|
|
Elf32_Sym *sym =
|
|
&((Elf32_Sym *) symtab_section->
|
|
data)[offset & 0x7FFFFFFF];
|
|
sym->st_value = thk_ptr;
|
|
sym->st_shndx = pe->thunk->sh_num;
|
|
} else { /* ref to function */
|
|
|
|
char buffer[100];
|
|
sprintf(buffer, "IAT.%s", name);
|
|
sym_index =
|
|
put_elf_sym(symtab_section, thk_ptr, sizeof(DWORD),
|
|
ELF32_ST_INFO(STB_GLOBAL, STT_OBJECT),
|
|
0, pe->thunk->sh_num, buffer);
|
|
|
|
put_elf_reloc(symtab_section, text_section, offset, R_386_32, /*R_JMP_SLOT, */
|
|
sym_index);
|
|
}
|
|
v = pe->thunk->data_offset + voffset;
|
|
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((void ***) &p->symbols, &p->sym_count);
|
|
}
|
|
dynarray_reset((void ***) &pe->imp_info, &pe->imp_count);
|
|
}
|
|
|
|
/* ------------------------------------------------------------- */
|
|
ST int sym_cmp(const void *va, const void *vb)
|
|
{
|
|
Elf32_Sym *sa = (Elf32_Sym *)symtab_section->data + *(int*)va;
|
|
Elf32_Sym *sb = (Elf32_Sym *)symtab_section->data + *(int*)vb;
|
|
const char *ca = symtab_section->link->data + sa->st_name;
|
|
const char *cb = symtab_section->link->data + sb->st_name;
|
|
return strcmp(ca, cb);
|
|
}
|
|
|
|
ST void pe_build_exports(struct pe_info *pe)
|
|
{
|
|
Elf32_Sym *sym;
|
|
DWORD func_offset, voffset;
|
|
struct pe_export_header *hdr;
|
|
int sym_count, n, ord, *sorted;
|
|
|
|
voffset = pe->thunk->sh_addr - pe->imagebase;
|
|
sym_count = 0, n = 1, sorted = NULL;
|
|
|
|
// for simplicity only functions are exported
|
|
for_sym_in_symtab(sym)
|
|
{
|
|
if ((sym->st_other & 1)
|
|
&& sym->st_shndx == text_section->sh_num)
|
|
dynarray_add((void***)&sorted, &sym_count, (void*)n);
|
|
++n;
|
|
}
|
|
|
|
if (0 == sym_count)
|
|
return;
|
|
|
|
qsort (sorted, sym_count, sizeof sorted[0], sym_cmp);
|
|
pe_align_section(pe->thunk, 16);
|
|
|
|
pe->exp_offs = pe->thunk->data_offset;
|
|
hdr = section_ptr_add(pe->thunk,
|
|
sizeof(struct pe_export_header) +
|
|
sym_count * (2 * sizeof(DWORD) + sizeof(WORD)));
|
|
|
|
func_offset = pe->exp_offs + sizeof(struct pe_export_header);
|
|
|
|
hdr->Characteristics = 0;
|
|
hdr->Base = 1;
|
|
hdr->NumberOfFunctions = sym_count;
|
|
hdr->NumberOfNames = sym_count;
|
|
hdr->AddressOfFunctions = func_offset + voffset;
|
|
hdr->AddressOfNames = hdr->AddressOfFunctions + sym_count * sizeof(DWORD);
|
|
hdr->AddressOfNameOrdinals = hdr->AddressOfNames + sym_count * sizeof(DWORD);
|
|
hdr->Name = pe->thunk->data_offset + voffset;
|
|
put_elf_str(pe->thunk, tcc_basename(pe->filename));
|
|
|
|
for (ord = 0; ord < sym_count; ++ord)
|
|
{
|
|
char *name; DWORD *p, *pfunc, *pname; WORD *pord;
|
|
sym = (Elf32_Sym *)symtab_section->data + sorted[ord];
|
|
name = symtab_section->link->data + sym->st_name;
|
|
p = (DWORD*)(pe->thunk->data + func_offset);
|
|
pfunc = p + ord;
|
|
pname = p + sym_count + ord;
|
|
pord = (WORD *)(p + 2*sym_count) + ord;
|
|
*pfunc = sym->st_value + pe->s1->sections[sym->st_shndx]->sh_addr - pe->imagebase;
|
|
*pname = pe->thunk->data_offset + voffset;
|
|
*pord = ord;
|
|
put_elf_str(pe->thunk, name);
|
|
/* printf("export: %s\n", name); */
|
|
}
|
|
pe->exp_size = pe->thunk->data_offset - pe->exp_offs;
|
|
tcc_free(sorted);
|
|
}
|
|
|
|
/* ------------------------------------------------------------- */
|
|
ST void pe_build_reloc(struct pe_info *pe, int *section_order,
|
|
int section_count)
|
|
{
|
|
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 < section_count) {
|
|
sr = (s = pe->s1->sections[section_order[i++]])->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)
|
|
section_ptr_add(pe->reloc, 2), ++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 int pe_assign_addresses(struct pe_info *pe)
|
|
{
|
|
int i, k, n;
|
|
DWORD addr;
|
|
int section_order[pe_sec_number];
|
|
struct section_info *si_data = NULL;
|
|
|
|
pe->imagebase = PE_DLL == pe_type ? 0x10000000 : 0x00400000;
|
|
addr = pe->imagebase + 1;
|
|
|
|
if (PE_DLL == pe_type)
|
|
pe->reloc = new_section(pe->s1, ".reloc", SHT_DYNAMIC, SHF_ALLOC);
|
|
|
|
for (n = k = 0; n < pe_sec_number; ++n) {
|
|
for (i = 1; i < pe->s1->nb_sections; ++i) {
|
|
Section *s = pe->s1->sections[i];
|
|
if (0 == strcmp(s->name, pe_sec_names[n])) {
|
|
struct section_info *si = &pe->sh_info[pe->sec_count];
|
|
#ifdef PE_MERGE_DATA
|
|
if (n == sec_bss && si_data) {
|
|
/* append .bss to .data */
|
|
s->sh_addr = addr = ((addr - 1) | 15) + 1;
|
|
addr += s->data_offset;
|
|
si_data->sh_size = addr - si_data->sh_addr;
|
|
} else
|
|
#endif
|
|
{
|
|
si->sh_addr = s->sh_addr = addr =
|
|
pe_virtual_align(addr);
|
|
si->id = n;
|
|
|
|
if (n == sec_data) {
|
|
pe->thunk = s;
|
|
si_data = si;
|
|
pe_build_imports(pe);
|
|
pe_build_exports(pe);
|
|
} else if (n == sec_reloc) {
|
|
pe_build_reloc(pe, section_order, k);
|
|
}
|
|
|
|
if (s->data_offset) {
|
|
if (n != sec_bss) {
|
|
si->data = s->data;
|
|
si->data_size = s->data_offset;
|
|
}
|
|
|
|
addr += s->data_offset;
|
|
si->sh_size = s->data_offset;
|
|
++pe->sec_count;
|
|
}
|
|
//printf("Section %08X %04X %s\n", si->sh_addr, si->data_size, s->name);
|
|
}
|
|
section_order[k] = i, ++k;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*----------------------------------------------------------------------------*/
|
|
ST int pe_check_symbols(struct pe_info *pe)
|
|
{
|
|
Elf32_Sym *sym;
|
|
int ret = 0;
|
|
|
|
pe_align_section(text_section, 8);
|
|
|
|
for_sym_in_symtab(sym) {
|
|
if (sym->st_shndx == SHN_UNDEF) {
|
|
const char *symbol = symtab_section->link->data + sym->st_name;
|
|
unsigned type = ELF32_ST_TYPE(sym->st_info);
|
|
int sym_index = pe_find_import(pe->s1, symbol, NULL);
|
|
if (sym_index) {
|
|
if (type == STT_FUNC) {
|
|
unsigned long offset = text_section->data_offset;
|
|
if (pe_add_import(pe, sym_index, offset + 2)) {
|
|
/* add the 'jmp IAT[x]' instruction */
|
|
*(WORD *) section_ptr_add(text_section, 8) =
|
|
0x25FF;
|
|
/* patch the symbol */
|
|
sym->st_shndx = text_section->sh_num;
|
|
sym->st_value = offset;
|
|
continue;
|
|
}
|
|
} else if (type == STT_OBJECT) { /* data, ptr to that should be */
|
|
if (pe_add_import(pe, sym_index,
|
|
(sym -
|
|
(Elf32_Sym *) symtab_section->data) |
|
|
0x80000000))
|
|
continue;
|
|
}
|
|
}
|
|
error_noabort("undefined symbol '%s'", symbol);
|
|
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
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ST void pe_print_section(FILE * f, Section * s)
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{ /* just if you'r curious */
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BYTE *p, *e, b;
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int i, n, l, m;
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p = s->data;
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e = s->data + s->data_offset;
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l = e - p;
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fprintf(f, "section \"%s\"", s->name);
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if (s->link)
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fprintf(f, "\nlink \"%s\"", s->link->name);
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if (s->reloc)
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fprintf(f, "\nreloc \"%s\"", s->reloc->name);
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fprintf(f, "\nv_addr %08X", s->sh_addr);
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fprintf(f, "\ncontents %08X", l);
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fprintf(f, "\n\n");
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if (s->sh_type == SHT_NOBITS)
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return;
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if (s->sh_type == SHT_SYMTAB)
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m = sizeof(Elf32_Sym);
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if (s->sh_type == SHT_REL)
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m = sizeof(Elf32_Rel);
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else
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m = 16;
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for (i = 0; i < l;) {
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fprintf(f, "%08X", i);
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for (n = 0; n < m; ++n) {
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if (n + i < l)
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fprintf(f, " %02X", p[i + n]);
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else
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fprintf(f, " ");
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}
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if (s->sh_type == SHT_SYMTAB) {
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Elf32_Sym *sym = (Elf32_Sym *) (p + i);
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const char *name = s->link->data + sym->st_name;
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fprintf(f,
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" name:%04X"
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" value:%04X"
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" size:%04X"
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" bind:%02X"
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" type:%02X"
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" other:%02X"
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" shndx:%04X"
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" \"%s\"",
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sym->st_name,
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sym->st_value,
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sym->st_size,
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ELF32_ST_BIND(sym->st_info),
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ELF32_ST_TYPE(sym->st_info),
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sym->st_other, sym->st_shndx, name);
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} else if (s->sh_type == SHT_REL) {
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Elf32_Rel *rel = (Elf32_Rel *) (p + i);
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Elf32_Sym *sym =
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(Elf32_Sym *) s->link->data + ELF32_R_SYM(rel->r_info);
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const char *name = s->link->link->data + sym->st_name;
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fprintf(f,
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" offset:%04X"
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" type:%02X"
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" symbol:%04X"
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" \"%s\"",
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rel->r_offset,
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ELF32_R_TYPE(rel->r_info),
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ELF32_R_SYM(rel->r_info), name);
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} else {
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fprintf(f, " ");
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for (n = 0; n < m; ++n) {
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if (n + i < l) {
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b = p[i + n];
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if (b < 32 || b >= 127)
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b = '.';
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fprintf(f, "%c", b);
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}
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}
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}
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i += m;
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fprintf(f, "\n");
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}
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fprintf(f, "\n\n");
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}
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#endif
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static int pe_test_cmd(const char **pp, const char *cmd)
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{
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const char *p;
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char *q, buf[16];
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int ret;
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p = *pp;
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q = buf;
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while (*p != '\0' && !is_space(*p)) {
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if ((q - buf) < sizeof(buf) - 1)
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*q++ = toup(*p);
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p++;
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}
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*q = '\0';
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ret = !strcmp(buf, cmd);
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*pp = p;
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return ret;
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}
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/* ------------------------------------------------------------- */
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int pe_load_def_file(TCCState * s1, FILE * fp)
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{
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DLLReference *dllref;
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int f = 0, sym_index;
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char *p, line[120], dllname[40];
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while (fgets(line, sizeof line, fp)) {
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//p = strchr(line, 0);
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while (p > line && p[-1] <= ' ')
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--p;
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*p = 0;
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p = line;
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while (*p && *p <= ' ')
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++p;
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if (*p && ';' != *p)
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switch (f) {
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case 0:
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if (!pe_test_cmd((const char **)&p, "LIBRARY"))
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return -1;
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while (is_space(*p))
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p++;
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pstrcpy(dllname, sizeof(dllname), p);
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++f;
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continue;
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case 1:
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if (!pe_test_cmd((const char **)&p, "EXPORTS"))
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return -1;
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++f;
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continue;
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case 2:
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dllref =
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tcc_malloc(sizeof(DLLReference) + strlen(dllname));
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strcpy(dllref->name, dllname);
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dllref->level = 0;
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dynarray_add((void ***) &s1->loaded_dlls,
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&s1->nb_loaded_dlls, dllref);
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++f;
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default:
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/* tccpe needs to know from what dll it should import
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the sym */
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sym_index = add_elf_sym(s1->dynsymtab_section,
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0, 0, ELF32_ST_INFO(STB_GLOBAL,
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STT_FUNC),
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s1->nb_loaded_dlls - 1,
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text_section->sh_num, p);
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continue;
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}
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}
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return 0;
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}
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/* ------------------------------------------------------------- */
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void pe_guess_outfile(char *objfilename, int output_type)
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{
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char *ext = strrchr(objfilename, '.');
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if (NULL == ext)
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//ext = strchr(objfilename, 0);
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if (output_type == TCC_OUTPUT_DLL)
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strcpy(ext, ".dll");
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else
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if (output_type == TCC_OUTPUT_EXE)
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strcpy(ext, ".exe");
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else
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if (output_type == TCC_OUTPUT_OBJ && strcmp(ext, ".o"))
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strcpy(ext, ".o");
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else
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error("no outputfile given");
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}
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/* ------------------------------------------------------------- */
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unsigned long pe_add_runtime(TCCState * s1)
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{
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const char *start_symbol;
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unsigned long addr;
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if (find_elf_sym(symtab_section, "WinMain"))
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pe_type = PE_GUI;
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else
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if (TCC_OUTPUT_DLL == s1->output_type)
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{
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pe_type = PE_DLL;
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// need this for 'tccelf.c:relocate_section()'
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s1->output_type = TCC_OUTPUT_EXE;
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}
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start_symbol =
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TCC_OUTPUT_MEMORY == s1->output_type
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? PE_GUI == pe_type ? "_runwinmain" : NULL
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: PE_DLL == pe_type ? "_dllstart"
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: PE_GUI == pe_type ? "_winstart" : "_start";
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/* grab the startup code from libtcc1 */
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if (start_symbol)
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add_elf_sym(symtab_section,
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0, 0,
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ELF32_ST_INFO(STB_GLOBAL, STT_NOTYPE), 0,
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SHN_UNDEF, start_symbol);
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if (0 == s1->nostdlib) {
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tcc_add_library(s1, "tcc1");
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tcc_add_library(s1, "msvcrt");
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if (PE_DLL == pe_type || PE_GUI == pe_type) {
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tcc_add_library(s1, "kernel32");
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tcc_add_library(s1, "user32");
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tcc_add_library(s1, "gdi32");
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}
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}
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|
addr = start_symbol ?
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(unsigned long) tcc_get_symbol_err(s1, start_symbol) : 0;
|
|
|
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if (s1->output_type == TCC_OUTPUT_MEMORY && addr) {
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/* for -run GUI's, put '_runwinmain' instead of 'main' */
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add_elf_sym(symtab_section,
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addr, 0,
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ELF32_ST_INFO(STB_GLOBAL, STT_NOTYPE), 0,
|
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text_section->sh_num, "main");
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|
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/* FreeConsole(); */
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}
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return addr;
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}
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int tcc_output_pe(TCCState * s1, const char *filename)
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|
{
|
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int ret;
|
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struct pe_info pe;
|
|
int i;
|
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memset(&pe, 0, sizeof pe);
|
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pe.filename = filename;
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pe.s1 = s1;
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pe.start_addr = pe_add_runtime(s1);
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relocate_common_syms(); /* assign bss adresses */
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ret = pe_check_symbols(&pe);
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if (0 == ret) {
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pe_assign_addresses(&pe);
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relocate_syms(s1, 0);
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for (i = 1; i < s1->nb_sections; ++i) {
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Section *s = s1->sections[i];
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if (s->reloc)
|
|
relocate_section(s1, s);
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}
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ret = pe_write_pe(&pe);
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}
|
|
#ifdef PE_PRINT_SECTIONS
|
|
{
|
|
Section *s;
|
|
FILE *f;
|
|
f = fopen("tccpe.log", "wt");
|
|
for (i = 1; i < s1->nb_sections; ++i) {
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s = s1->sections[i];
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pe_print_section(f, s);
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}
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pe_print_section(f, s1->dynsymtab_section);
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|
fclose(f);
|
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}
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|
#endif
|
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return ret;
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}
|
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/*----------------------------------------------------------------------------*/
|