1 /* coff information for Intel 386/486. 2 3 Copyright (C) 2001-2024 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software 17 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 18 MA 02110-1301, USA. */ 19 20 #define L_LNNO_SIZE 2 21 #define INCLUDE_COMDAT_FIELDS_IN_AUXENT 22 #include "coff/external.h" 23 24 #define COFF_PAGE_SIZE 0x1000 25 26 /* Bits for f_flags: 27 F_RELFLG Relocation info stripped from file 28 F_EXEC File is executable (no unresolved external references) 29 F_LNNO Line numbers stripped from file 30 F_LSYMS Local symbols stripped from file 31 F_AR32WR File has byte ordering of an AR32WR machine (e.g. vax). */ 32 33 #define F_RELFLG (0x0001) 34 #define F_EXEC (0x0002) 35 #define F_LNNO (0x0004) 36 #define F_LSYMS (0x0008) 37 38 #define I386MAGIC 0x14c 39 #define I386PTXMAGIC 0x154 40 #define I386AIXMAGIC 0x175 41 42 /* This is Lynx's all-platform magic number for executables. */ 43 44 #define LYNXCOFFMAGIC 0415 45 46 /* .NET DLLs XOR the Machine number (above) with an override to 47 indicate that the DLL contains OS-specific machine code rather 48 than just IL or bytecode. See 49 https://github.com/dotnet/coreclr/blob/6f7aa7967c607b8c667518314ab937c0d7547025/src/inc/pedecoder.h#L94-L107. */ 50 #define IMAGE_FILE_MACHINE_NATIVE_APPLE_OVERRIDE 0x4644 51 #define IMAGE_FILE_MACHINE_NATIVE_FREEBSD_OVERRIDE 0xadc4 52 #define IMAGE_FILE_MACHINE_NATIVE_LINUX_OVERRIDE 0x7b79 53 #define IMAGE_FILE_MACHINE_NATIVE_NETBSD_OVERRIDE 0x1993 54 55 /* Used in some .NET DLLs that target a specific OS. */ 56 #define I386_APPLE_MAGIC (I386MAGIC ^ IMAGE_FILE_MACHINE_NATIVE_APPLE_OVERRIDE) 57 #define I386_FREEBSD_MAGIC (I386MAGIC ^ IMAGE_FILE_MACHINE_NATIVE_FREEBSD_OVERRIDE) 58 #define I386_LINUX_MAGIC (I386MAGIC ^ IMAGE_FILE_MACHINE_NATIVE_LINUX_OVERRIDE) 59 #define I386_NETBSD_MAGIC (I386MAGIC ^ IMAGE_FILE_MACHINE_NATIVE_NETBSD_OVERRIDE) 60 61 #define I386BADMAG(x) ( ((x).f_magic != I386MAGIC) \ 62 && (x).f_magic != I386_APPLE_MAGIC \ 63 && (x).f_magic != I386_FREEBSD_MAGIC \ 64 && (x).f_magic != I386_LINUX_MAGIC \ 65 && (x).f_magic != I386_NETBSD_MAGIC \ 66 && (x).f_magic != I386AIXMAGIC \ 67 && (x).f_magic != I386PTXMAGIC \ 68 && (x).f_magic != LYNXCOFFMAGIC) 69 70 #define OMAGIC 0404 /* Object files, eg as output. */ 71 #define ZMAGIC 0413 /* Demand load format, eg normal ld output. */ 72 #define STMAGIC 0401 /* Target shlib. */ 73 #define SHMAGIC 0443 /* Host shlib. */ 74 75 /* Define some NT default values. */ 76 /* #define NT_IMAGE_BASE 0x400000 moved to internal.h */ 77 #define NT_SECTION_ALIGNMENT 0x1000 78 #define NT_FILE_ALIGNMENT 0x200 79 #define NT_DEF_RESERVE 0x100000 80 #define NT_DEF_COMMIT 0x1000 81 82 /* Relocation directives. */ 83 84 struct external_reloc 85 { 86 char r_vaddr[4]; 87 char r_symndx[4]; 88 char r_type[2]; 89 }; 90 91 #define RELOC struct external_reloc 92 #define RELSZ 10 93 94 /* i386 Relocations. */ 95 96 #define R_DIR32 6 97 #define R_IMAGEBASE 7 98 #define R_SECTION 10 99 #define R_SECREL32 11 100 #define R_RELBYTE 15 101 #define R_RELWORD 16 102 #define R_RELLONG 17 103 #define R_PCRBYTE 18 104 #define R_PCRWORD 19 105 #define R_PCRLONG 20 106