-/*** coff information for Intel 386/486. */
-
-
-/********************** FILE HEADER **********************/
-
-struct external_filehdr {
- char f_magic[2]; /* magic number */
- char f_nscns[2]; /* number of sections */
- char f_timdat[4]; /* time & date stamp */
- char f_symptr[4]; /* file pointer to symtab */
- char f_nsyms[4]; /* number of symtab entries */
- char f_opthdr[2]; /* sizeof(optional hdr) */
- char f_flags[2]; /* flags */
-};
+/* coff information for Intel 386/486.
+
+ Copyright (C) 2001-2019 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#define L_LNNO_SIZE 2
+#define INCLUDE_COMDAT_FIELDS_IN_AUXENT
+#include "coff/external.h"
+
+#define COFF_PAGE_SIZE 0x1000
/* Bits for f_flags:
- * F_RELFLG relocation info stripped from file
- * F_EXEC file is executable (no unresolved external references)
- * F_LNNO line numbers stripped from file
- * F_LSYMS local symbols stripped from file
- * F_AR32WR file has byte ordering of an AR32WR machine (e.g. vax)
- */
+ F_RELFLG Relocation info stripped from file
+ F_EXEC File is executable (no unresolved external references)
+ F_LNNO Line numbers stripped from file
+ F_LSYMS Local symbols stripped from file
+ F_AR32WR File has byte ordering of an AR32WR machine (e.g. vax). */
#define F_RELFLG (0x0001)
#define F_EXEC (0x0002)
#define F_LNNO (0x0004)
#define F_LSYMS (0x0008)
-
-
#define I386MAGIC 0x14c
#define I386PTXMAGIC 0x154
#define I386AIXMAGIC 0x175
-/* This is Lynx's all-platform magic number for executables. */
+/* This is Lynx's all-platform magic number for executables. */
#define LYNXCOFFMAGIC 0415
-#define I386BADMAG(x) (((x).f_magic != I386MAGIC) \
+/* .NET DLLs XOR the Machine number (above) with an override to
+ indicate that the DLL contains OS-specific machine code rather
+ than just IL or bytecode. See
+ https://github.com/dotnet/coreclr/blob/6f7aa7967c607b8c667518314ab937c0d7547025/src/inc/pedecoder.h#L94-L107. */
+#define IMAGE_FILE_MACHINE_NATIVE_APPLE_OVERRIDE 0x4644
+#define IMAGE_FILE_MACHINE_NATIVE_FREEBSD_OVERRIDE 0xadc4
+#define IMAGE_FILE_MACHINE_NATIVE_LINUX_OVERRIDE 0x7b79
+#define IMAGE_FILE_MACHINE_NATIVE_NETBSD_OVERRIDE 0x1993
+
+/* Used in some .NET DLLs that target a specific OS. */
+#define I386_APPLE_MAGIC (I386MAGIC ^ IMAGE_FILE_MACHINE_NATIVE_APPLE_OVERRIDE)
+#define I386_FREEBSD_MAGIC (I386MAGIC ^ IMAGE_FILE_MACHINE_NATIVE_FREEBSD_OVERRIDE)
+#define I386_LINUX_MAGIC (I386MAGIC ^ IMAGE_FILE_MACHINE_NATIVE_LINUX_OVERRIDE)
+#define I386_NETBSD_MAGIC (I386MAGIC ^ IMAGE_FILE_MACHINE_NATIVE_NETBSD_OVERRIDE)
+
+#define I386BADMAG(x) ( ((x).f_magic != I386MAGIC) \
+ && (x).f_magic != I386_APPLE_MAGIC \
+ && (x).f_magic != I386_FREEBSD_MAGIC \
+ && (x).f_magic != I386_LINUX_MAGIC \
+ && (x).f_magic != I386_NETBSD_MAGIC \
&& (x).f_magic != I386AIXMAGIC \
&& (x).f_magic != I386PTXMAGIC \
&& (x).f_magic != LYNXCOFFMAGIC)
-#define FILHDR struct external_filehdr
-#define FILHSZ 20
-
-
-/********************** AOUT "OPTIONAL HEADER" **********************/
-
-
-typedef struct
-{
- char magic[2]; /* type of file */
- char vstamp[2]; /* version stamp */
- char tsize[4]; /* text size in bytes, padded to FW bdry*/
- char dsize[4]; /* initialized data " " */
- char bsize[4]; /* uninitialized data " " */
- char entry[4]; /* entry pt. */
- char text_start[4]; /* base of text used for this file */
- char data_start[4]; /* base of data used for this file */
+#define OMAGIC 0404 /* Object files, eg as output. */
+#define ZMAGIC 0413 /* Demand load format, eg normal ld output. */
+#define STMAGIC 0401 /* Target shlib. */
+#define SHMAGIC 0443 /* Host shlib. */
-
-}
-AOUTHDR;
-
-
-#define AOUTSZ 28
-#define AOUTHDRSZ 28
-
-#define OMAGIC 0404 /* object files, eg as output */
-#define ZMAGIC 0413 /* demand load format, eg normal ld output */
-#define STMAGIC 0401 /* target shlib */
-#define SHMAGIC 0443 /* host shlib */
-
-
-/* define some NT default values */
+/* Define some NT default values. */
/* #define NT_IMAGE_BASE 0x400000 moved to internal.h */
#define NT_SECTION_ALIGNMENT 0x1000
#define NT_FILE_ALIGNMENT 0x200
#define NT_DEF_RESERVE 0x100000
#define NT_DEF_COMMIT 0x1000
-/********************** SECTION HEADER **********************/
-
+/* Relocation directives. */
-struct external_scnhdr {
- char s_name[8]; /* section name */
- char s_paddr[4]; /* physical address, aliased s_nlib */
- char s_vaddr[4]; /* virtual address */
- char s_size[4]; /* section size */
- char s_scnptr[4]; /* file ptr to raw data for section */
- char s_relptr[4]; /* file ptr to relocation */
- char s_lnnoptr[4]; /* file ptr to line numbers */
- char s_nreloc[2]; /* number of relocation entries */
- char s_nlnno[2]; /* number of line number entries*/
- char s_flags[4]; /* flags */
-};
-
-#define SCNHDR struct external_scnhdr
-#define SCNHSZ 40
-
-/*
- * names of "special" sections
- */
-#define _TEXT ".text"
-#define _DATA ".data"
-#define _BSS ".bss"
-#define _COMMENT ".comment"
-#define _LIB ".lib"
-
-/********************** LINE NUMBERS **********************/
-
-/* 1 line number entry for every "breakpointable" source line in a section.
- * Line numbers are grouped on a per function basis; first entry in a function
- * grouping will have l_lnno = 0 and in place of physical address will be the
- * symbol table index of the function name.
- */
-struct external_lineno {
- union {
- char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
- char l_paddr[4]; /* (physical) address of line number */
- } l_addr;
- char l_lnno[2]; /* line number */
-};
-
-
-#define LINENO struct external_lineno
-#define LINESZ 6
-
-
-/********************** SYMBOLS **********************/
-
-#define E_SYMNMLEN 8 /* # characters in a symbol name */
-#define E_FILNMLEN 14 /* # characters in a file name */
-#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
-
-struct external_syment
+struct external_reloc
{
- union {
- char e_name[E_SYMNMLEN];
- struct {
- char e_zeroes[4];
- char e_offset[4];
- } e;
- } e;
- char e_value[4];
- char e_scnum[2];
- char e_type[2];
- char e_sclass[1];
- char e_numaux[1];
-};
-
-#define N_BTMASK (0xf)
-#define N_TMASK (0x30)
-#define N_BTSHFT (4)
-#define N_TSHIFT (2)
-
-union external_auxent {
- struct {
- char x_tagndx[4]; /* str, un, or enum tag indx */
- union {
- struct {
- char x_lnno[2]; /* declaration line number */
- char x_size[2]; /* str/union/array size */
- } x_lnsz;
- char x_fsize[4]; /* size of function */
- } x_misc;
- union {
- struct { /* if ISFCN, tag, or .bb */
- char x_lnnoptr[4]; /* ptr to fcn line # */
- char x_endndx[4]; /* entry ndx past block end */
- } x_fcn;
- struct { /* if ISARY, up to 4 dimen. */
- char x_dimen[E_DIMNUM][2];
- } x_ary;
- } x_fcnary;
- char x_tvndx[2]; /* tv index */
- } x_sym;
-
- union {
- char x_fname[E_FILNMLEN];
- struct {
- char x_zeroes[4];
- char x_offset[4];
- } x_n;
- } x_file;
-
- struct {
- char x_scnlen[4]; /* section length */
- char x_nreloc[2]; /* # relocation entries */
- char x_nlinno[2]; /* # line numbers */
- char x_checksum[4]; /* section COMDAT checksum */
- char x_associated[2]; /* COMDAT associated section index */
- char x_comdat[1]; /* COMDAT selection number */
- } x_scn;
-
- struct {
- char x_tvfill[4]; /* tv fill value */
- char x_tvlen[2]; /* length of .tv */
- char x_tvran[2][2]; /* tv range */
- } x_tv; /* info about .tv section (in auxent of symbol .tv)) */
-
-
-};
-
-#define SYMENT struct external_syment
-#define SYMESZ 18
-#define AUXENT union external_auxent
-#define AUXESZ 18
-
-
-# define _ETEXT "etext"
-
-
-/********************** RELOCATION DIRECTIVES **********************/
-
-
-
-struct external_reloc {
char r_vaddr[4];
char r_symndx[4];
char r_type[2];
};
-
#define RELOC struct external_reloc
#define RELSZ 10
projects / deliverable / binutils-gdb.git / blobdiff