Initial revision

2 files changed, 547 insertions, 0 deletions

diff --git a/bfd/coff-i386.c b/bfd/coff-i386.c
new file mode 100644
index 0000000..103de4b
--- /dev/null
+++ b/bfd/coff-i386.c
@@ -0,0 +1,101 @@
+/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+
+This file is part of BFD, the Binary File Diddler.
+
+BFD 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 1, or (at your option)
+any later version.
+
+BFD 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 BFD; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+
+/* $Id$ */
+
+#define I386 1
+#include <ansidecl.h>
+#include <sysdep.h>
+#include "bfd.h"
+#include "libbfd.h"
+#include "obstack.h"
+#include "i386coff.h"
+#include "libcoff.h"
+
+
+static reloc_howto_type howto_table[] = 
+{
+    {0},
+    {1},
+    {2},
+    {3},
+    {4},
+    {5},
+  HOWTO(R_DIR32,	       0,  2, 	32, false, 0, true,true,0,"dir32",	true, 0xffffffff,0xffffffff, false),
+    {7},
+    {010},
+    {011},
+    {012},
+    {013},
+    {014},
+    {015},
+    {016},
+  HOWTO(R_RELBYTE,	       0,  0,  	8,  false, 0, true,  true,0,"8",	true, 0x000000ff,0x000000ff, false),
+  HOWTO(R_RELWORD,	       0,  1, 	16, false, 0, true,  true,0,"16",	true, 0x0000ffff,0x0000ffff, false),
+  HOWTO(R_RELLONG,	       0,  2, 	32, false, 0, true,  true,0,"32",	true, 0xffffffff,0xffffffff, false),
+  HOWTO(R_PCRBYTE,	       0,  0, 	8,  true,  0, false, true,0,"DISP8",    true, 0x000000ff,0x000000ff, false),
+  HOWTO(R_PCRWORD,	       0,  1, 	16, true,  0, false, true,0,"DISP16",   true, 0x0000ffff,0x0000ffff, false),
+  HOWTO(R_PCRLONG,	       0,  2, 	32, true,  0, false, true,0,"DISP32",   true, 0xffffffff,0xffffffff, false),
+};
+
+
+/* Turn a howto into a reloc  nunmber */
+
+#define SELECT_RELOC(x,howto) { x = howto->type; }
+#define BADMAG(x) I386BADMAG(x)
+#include "coffcode.h"
+
+
+#define coff_write_armap bsd_write_armap
+
+bfd_target *i3coff_object_p(a)
+bfd *a ;
+{ return coff_object_p(a); }
+
+bfd_target i386coff_vec =
+{
+  "i386coff",		/* name */
+  bfd_target_coff_flavour_enum,
+  false,				/* data byte order is big */
+  false,				/* header byte order is big */
+
+  (HAS_RELOC | EXEC_P |		/* object flags */
+   HAS_LINENO | HAS_DEBUG |
+   HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT),
+
+  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+  '/',				/* ar_pad_char */
+  15,				/* ar_max_namelen */
+
+_do_getl64, _do_putl64,  _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */
+_do_getl64, _do_putl64,  _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* hdrs */
+
+  {_bfd_dummy_target, i3coff_object_p, /* bfd_check_format */
+     bfd_generic_archive_p, _bfd_dummy_target},
+  {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
+     bfd_false},
+  {bfd_false, coff_write_object_contents,	/* bfd_write_contents */
+     _bfd_write_archive_contents, bfd_false},
+
+     JUMP_TABLE(coff)
+
+  };
+
+
+
diff --git a/include/coff-i386.h b/include/coff-i386.h
new file mode 100755
index 0000000..8b0464f
--- /dev/null
+++ b/include/coff-i386.h
@@ -0,0 +1,446 @@
+/*** coff information for M68K */
+
+
+/********************** 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			*/
+};
+
+struct internal_filehdr 
+{
+  unsigned short	f_magic; /* magic number			*/
+  unsigned short	f_nscns; /* number of sections		*/
+  long		f_timdat;	 /* time & date stamp		*/
+  long		f_symptr;	 /* file pointer to symtab	*/
+  long		f_nsyms;	 /* number of symtab entries	*/
+  unsigned short	f_opthdr; /* sizeof(optional hdr)		*/
+  unsigned short	f_flags;  /* flags			*/
+};
+
+/* 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)
+ */
+
+#define F_RELFLG	(0x0001)
+#define F_EXEC		(0x0002)
+#define F_LNNO		(0x0004)
+#define F_LSYMS		(0x0008)
+#define F_AR32WR	(0400)
+
+
+#define	I386MAGIC	0x14c
+#define I386BADMAG(x) (((x).f_magic!=I386MAGIC))
+
+
+#define	FILHDR	struct external_filehdr
+#define	FILHSZ	sizeof(FILHDR)
+
+
+/********************** AOUT "OPTIONAL HEADER" **********************/
+struct internal_aouthdr {
+	short		magic;	/* type of file				*/
+	short		vstamp;	/* version stamp			*/
+	unsigned long	tsize;	/* text size in bytes, padded to FW bdry*/
+	unsigned long	dsize;	/* initialized data "  "		*/
+	unsigned long	bsize;	/* uninitialized data "   "		*/
+	unsigned long	entry;	/* entry pt.				*/
+	unsigned long	text_start;	/* base of text used for this file */
+	unsigned long	data_start;	/* base of data used for this file */
+	unsigned long	tagentries;	/* number of tag entries to follow */
+} ;
+
+
+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 */
+}
+AOUTHDR;
+
+#define AOUTSZ (sizeof(AOUTHDR))
+
+
+/********************** STORAGE CLASSES **********************/
+
+#define C_EFCN		-1	/* physical end of function	*/
+#define C_NULL		0
+#define C_AUTO		1	/* automatic variable		*/
+#define C_EXT		2	/* external symbol		*/
+#define C_STAT		3	/* static			*/
+#define C_REG		4	/* register variable		*/
+#define C_EXTDEF	5	/* external definition		*/
+#define C_LABEL		6	/* label			*/
+#define C_ULABEL	7	/* undefined label		*/
+#define C_MOS		8	/* member of structure		*/
+#define C_ARG		9	/* function argument		*/
+#define C_STRTAG	10	/* structure tag		*/
+#define C_MOU		11	/* member of union		*/
+#define C_UNTAG		12	/* union tag			*/
+#define C_TPDEF		13	/* type definition		*/
+#define C_USTATIC	14	/* undefined static		*/
+#define C_ENTAG		15	/* enumeration tag		*/
+#define C_MOE		16	/* member of enumeration	*/
+#define C_REGPARM	17	/* register parameter		*/
+#define C_FIELD		18	/* bit field			*/
+#define C_AUTOARG	19	/* auto argument		*/
+#define C_LASTENT	20	/* dummy entry (end of block)	*/
+#define C_BLOCK		100	/* ".bb" or ".eb"		*/
+#define C_FCN		101	/* ".bf" or ".ef"		*/
+#define C_EOS		102	/* end of structure		*/
+#define C_FILE		103	/* file name			*/
+#define C_LINE		104	/* line # reformatted as symbol table entry */
+#define C_ALIAS	 	105	/* duplicate tag		*/
+#define C_HIDDEN	106	/* ext symbol in dmert public lib */
+
+/********************** SECTION HEADER **********************/
+
+struct internal_scnhdr {
+	char		s_name[8];	/* section name			*/
+	long		s_paddr;	/* physical address, aliased s_nlib */
+	long		s_vaddr;	/* virtual address		*/
+	long		s_size;		/* section size			*/
+	long		s_scnptr;	/* file ptr to raw data for section */
+	long		s_relptr;	/* file ptr to relocation	*/
+	long		s_lnnoptr;	/* file ptr to line numbers	*/
+	unsigned short	s_nreloc;	/* number of relocation entries	*/
+	unsigned short	s_nlnno;	/* number of line number entries*/
+	long		s_flags;	/* flags			*/
+};
+
+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			*/
+};
+
+/*
+ * names of "special" sections
+ */
+#define _TEXT	".text"
+#define _DATA	".data"
+#define _BSS	".bss"
+
+/*
+ * s_flags "type"
+ */
+#define STYP_REG	 (0x0000) /* "regular": allocated, relocated, loaded */
+#define STYP_DSECT	 (0x0001) /* "dummy":  relocated only*/
+#define STYP_NOLOAD	 (0x0002) /* "noload": allocated, relocated, not loaded */
+#define STYP_GROUP	 (0x0004) /* "grouped": formed of input sections */
+#define STYP_PAD	 (0x0008) /* "padding": not allocated, not relocated, loaded */
+#define STYP_COPY	 (0x0010) /* "copy": for decision function used by field update;  not allocated, not relocated,
+				     loaded; reloc & lineno entries processed normally */
+#define STYP_TEXT	 (0x0020) /* section contains text only */
+#define S_SHRSEG	 (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
+				     will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
+				     update all process invocations. */
+#define STYP_DATA	 (0x0040) /* section contains data only */
+#define STYP_BSS	 (0x0080) /* section contains bss only */
+#define S_NEWFCN	 (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */
+#define STYP_INFO	 (0x0200) /* comment: not allocated not relocated, not loaded */
+#define STYP_OVER	 (0x0400) /* overlay: relocated not allocated or loaded */
+#define STYP_LIB	 (0x0800) /* for .lib: same as INFO */
+#define STYP_MERGE	 (0x2000) /* merge section -- combines with text, data or bss sections only */
+#define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions wherever padding is necessary and there is a
+				     word of contiguous bytes beginning on a word boundary. */
+
+#define	SCNHDR	struct external_scnhdr
+#define	SCNHSZ	sizeof(SCNHDR)
+
+
+/********************** 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		*/
+};
+
+struct internal_lineno {
+	union {
+		long l_symndx;	/* function name symbol index, iff l_lnno == 0*/
+		long l_paddr;	/* (physical) address of line number	*/
+	} l_addr;
+	unsigned short	l_lnno;	/* line number		*/
+};
+
+#define	LINENO	struct external_lineno
+#define	LINESZ	sizeof(LINENO) 
+
+
+/********************** SYMBOLS **********************/
+
+#define SYMNMLEN	8	/* # characters in a symbol name	*/
+#define FILNMLEN	14	/* # characters in a file name		*/
+#define DIMNUM		4	/* # array dimensions in auxiliary entry */
+
+struct external_syment 
+{
+  union {
+    char e_name[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];
+};
+
+struct internal_syment {
+	union {
+		char	_n_name[SYMNMLEN];	/* old COFF version	*/
+		struct {
+			long	_n_zeroes;	/* new == 0		*/
+			long	_n_offset;	/* offset into string table */
+		} _n_n;
+		char	*_n_nptr[2];	/* allows for overlaying	*/
+	} _n;
+	long		n_value;	/* value of symbol		*/
+	short		n_scnum;	/* section number		*/
+	unsigned short	n_flags;	/* copy of flags from filhdr	*/
+	unsigned short	n_type;		/* type and derived type	*/
+	char		n_sclass;	/* storage class		*/
+	char		n_numaux;	/* number of aux. entries	*/
+};
+
+/*#define n_name		_n._n_name
+#define n_ptr		_n._n_nptr[1]
+#define n_zeroes	_n._n_n._n_zeroes
+#define n_offset	_n._n_n._n_offset
+*/
+
+/*
+ * Relocatable symbols have number of the section in which they are defined,
+ * or one of the following:
+ */
+#define N_UNDEF	((short)0)  /* undefined symbol */
+#define N_ABS	((short)-1) /* value of symbol is absolute */
+#define N_DEBUG	((short)-2) /* debugging symbol -- value is meaningless */
+#define N_TV	((short)-3) /* indicates symbol needs preload transfer vector */
+#define P_TV	((short)-4) /* indicates symbol needs postload transfer vector*/
+
+/*
+ * Type of a symbol, in low 4 bits of the word
+ */
+#define T_NULL		0
+#define T_VOID		1	/* function argument (only used by compiler) */
+#define T_CHAR		2	/* character		*/
+#define T_SHORT		3	/* short integer	*/
+#define T_INT		4	/* integer		*/
+#define T_LONG		5	/* long integer		*/
+#define T_FLOAT		6	/* floating point	*/
+#define T_DOUBLE	7	/* double word		*/
+#define T_STRUCT	8	/* structure 		*/
+#define T_UNION		9	/* union 		*/
+#define T_ENUM		10	/* enumeration 		*/
+#define T_MOE		11	/* member of enumeration*/
+#define T_UCHAR		12	/* unsigned character	*/
+#define T_USHORT	13	/* unsigned short	*/
+#define T_UINT		14	/* unsigned integer	*/
+#define T_ULONG		15	/* unsigned long	*/
+#define T_LNGDBL	16	/* long double		*/
+
+/*
+ * derived types, in n_type
+*/
+#define DT_NON		(0)	/* no derived type */
+#define DT_PTR		(1)	/* pointer */
+#define DT_FCN		(2)	/* function */
+#define DT_ARY		(3)	/* array */
+
+#define N_BTMASK	(0x1f)
+#define N_TMASK		(0x60)
+#define N_BTSHFT	(5)
+#define N_TSHIFT	(2)
+  
+#define BTYPE(x)	((x) & N_BTMASK)
+
+#define ISPTR(x)	(((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
+#define ISFCN(x)	(((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
+#define ISARY(x)	(((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
+
+#define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK))
+
+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[DIMNUM][2];
+			} x_ary;
+		} x_fcnary;
+		char x_tvndx[2];		/* tv index */
+	} x_sym;
+
+	union {
+		char x_fname[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 */
+	} 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)) */
+
+
+};
+union internal_auxent {
+	struct {
+		long x_tagndx;	/* str, un, or enum tag indx */
+		union {
+			struct {
+			    unsigned short x_lnno; /* declaration line number */
+			    unsigned short x_size; /* str/union/array size */
+			} x_lnsz;
+			long x_fsize;	/* size of function */
+		} x_misc;
+		union {
+			struct {		/* if ISFCN, tag, or .bb */
+			    long x_lnnoptr;	/* ptr to fcn line # */
+			    long x_endndx;	/* entry ndx past block end */
+			} x_fcn;
+			struct {		/* if ISARY, up to 4 dimen. */
+			    unsigned short x_dimen[DIMNUM];
+			} x_ary;
+		} x_fcnary;
+		unsigned short x_tvndx;		/* tv index */
+	} x_sym;
+
+	union {
+		char x_fname[FILNMLEN];
+		struct {
+			long x_zeroes;
+			long x_offset;
+		} x_n;
+	} x_file;
+
+	struct {
+		long x_scnlen;			/* section length */
+		unsigned short x_nreloc;	/* # relocation entries */
+		unsigned short x_nlinno;	/* # line numbers */
+	} x_scn;
+
+        struct {
+		long		x_tvfill;	/* tv fill value */
+		unsigned short	x_tvlen;	/* length of .tv */
+		unsigned short	x_tvran[2];	/* tv range */
+	} x_tv;		/* info about .tv section (in auxent of symbol .tv)) */
+
+	/******************************************
+	 *  I960-specific *2nd* aux. entry formats
+	 ******************************************/
+	struct {
+/* This is a very old typo that keeps getting propagated. */
+#define x_stdindx x_stindx
+		long x_stindx;	/* sys. table entry */
+	} x_sc;	/* system call entry */
+
+	struct {
+		unsigned long x_balntry; /* BAL entry point */
+	} x_bal; /* BAL-callable function */
+
+        struct {
+		unsigned long	x_timestamp;	        /* time stamp */
+		char 	x_idstring[20];	        /* producer identity string */
+	} x_ident;	                        /* Producer ident info */
+
+
+};
+
+#define	SYMENT	struct external_syment
+#define	SYMESZ	18	
+#define	AUXENT	union external_auxent
+#define	AUXESZ	18
+
+
+#	define _ETEXT	"etext"
+
+
+/********************** RELOCATION DIRECTIVES **********************/
+
+struct internal_reloc {
+	long r_vaddr;		/* Virtual address of reference */
+	long r_symndx;		/* Index into symbol table	*/
+	unsigned short r_type;	/* Relocation type		*/
+};
+
+
+struct external_reloc {
+  char r_vaddr[4];
+  char r_symndx[4];
+  char r_type[2];
+};
+
+#define R_DIR32		06
+#define	R_PCLONG	020
+#define R_RELBYTE	017
+#define R_RELWORD	020
+#define R_RELLONG	021
+#define R_PCRBYTE	022
+#define R_PCRWORD	023
+#define R_PCRLONG	024
+
+#define RELOC struct external_reloc
+#define RELSZ 10
+
+#define DEFAULT_DATA_SECTION_ALIGNMENT 4
+#define DEFAULT_BSS_SECTION_ALIGNMENT 4
+#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
+/* For new sections we havn't heard of before */
+#define DEFAULT_SECTION_ALIGNMENT 4