246 lines
6.4 KiB
C
246 lines
6.4 KiB
C
/* Motorola MCore support for BFD.
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Copyright (C) 1999 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; 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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/* This file holds definitions specific to the MCore COFF/PE ABI. */
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#ifndef _COFF_MORE_H
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#define _COFF_MORE_H
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#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
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#define IMAGE_REL_MCORE_ABSOLUTE 0x0000
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#define IMAGE_REL_MCORE_ADDR32 0x0001
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#define IMAGE_REL_MCORE_PCREL_IMM8BY4 0x0002
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#define IMAGE_REL_MCORE_PCREL_IMM11BY2 0x0003
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#define IMAGE_REL_MCORE_PCREL_IMM4BY2 0x0004
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#define IMAGE_REL_MCORE_PCREL_32 0x0005
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#define IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2 0x0006
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#define IMAGE_REL_MCORE_RVA 0x0007
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#define PEMCORE
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typedef struct
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{
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char magic [2]; /* type of file */
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char vstamp [2]; /* version stamp */
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char tsize [4]; /* text size in bytes, padded to FW bdry*/
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char dsize [4]; /* initialized data " " */
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char bsize [4]; /* uninitialized data " " */
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char entry [4]; /* entry pt. */
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char text_start [4]; /* base of text used for this file */
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char data_start [4]; /* base of data used for this file */
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}
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AOUTHDR;
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#define AOUTSZ 28
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#define AOUTHDRSZ 28
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#define OMAGIC 0404 /* object files, eg as output */
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#define ZMAGIC 0413 /* demand load format, eg normal ld output */
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#define STMAGIC 0401 /* target shlib */
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#define SHMAGIC 0443 /* host shlib */
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/* From winnt.h */
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#define IMAGE_NT_OPTIONAL_HDR_MAGIC 0x10b
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/* Define some NT default values. */
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#define NT_SECTION_ALIGNMENT 0x1000
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#define NT_FILE_ALIGNMENT 0x200
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#define NT_DEF_RESERVE 0x100000
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#define NT_DEF_COMMIT 0x1000
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struct external_reloc
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{
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char r_vaddr [4];
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char r_symndx [4];
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char r_type [2];
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char r_offset [4];
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};
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#define RELOC struct external_reloc
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#define RELSZ 14
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#define MCOREMAGIC 0xb00 /* I just made this up */
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#define MCOREBADMAG(x) (((x).f_magic!= MCOREMAGIC))
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struct external_filehdr
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{
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char f_magic [2]; /* magic number */
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char f_nscns [2]; /* number of sections */
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char f_timdat [4]; /* time & date stamp */
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char f_symptr [4]; /* file pointer to symtab */
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char f_nsyms [4]; /* number of symtab entries */
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char f_opthdr [2]; /* sizeof(optional hdr) */
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char f_flags [2]; /* flags */
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};
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#define FILHDR struct external_filehdr
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#define FILHSZ 20
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#define E_SYMNMLEN 8 /* # characters in a symbol name */
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#define E_FILNMLEN 14 /* # characters in a file name */
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#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
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struct external_syment
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{
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union
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{
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char e_name [E_SYMNMLEN];
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struct
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{
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char e_zeroes [4];
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char e_offset [4];
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} e;
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} e;
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char e_value [4];
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char e_scnum [2];
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char e_type [2];
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char e_sclass [1];
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char e_numaux [1];
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};
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#define N_BTMASK 0xf
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#define N_TMASK 0x30
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#define N_BTSHFT 4
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#define N_TSHIFT 2
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union external_auxent
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{
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struct
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{
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char x_tagndx [4]; /* str, un, or enum tag indx */
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union
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{
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struct
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{
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char x_lnno [2]; /* declaration line number */
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char x_size [2]; /* str/union/array size */
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} x_lnsz;
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char x_fsize [4]; /* size of function */
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} x_misc;
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union
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{
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struct /* if ISFCN, tag, or .bb */
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{
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char x_lnnoptr [4]; /* ptr to fcn line # */
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char x_endndx [4]; /* entry ndx past block end */
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} x_fcn;
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struct /* if ISARY, up to 4 dimen. */
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{
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char x_dimen [E_DIMNUM][2];
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} x_ary;
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} x_fcnary;
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char x_tvndx [2]; /* tv index */
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} x_sym;
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union
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{
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char x_fname [E_FILNMLEN];
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struct
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{
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char x_zeroes [4];
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char x_offset [4];
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} x_n;
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} x_file;
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struct
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{
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char x_scnlen [4]; /* section length */
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char x_nreloc [2]; /* # relocation entries */
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char x_nlinno [2]; /* # line numbers */
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char x_checksum [4]; /* section COMDAT checksum */
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char x_associated [2]; /* COMDAT associated section index */
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char x_comdat [1]; /* COMDAT selection number */
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} x_scn;
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struct
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{
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char x_tvfill [4]; /* tv fill value */
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char x_tvlen [2]; /* length of .tv */
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char x_tvran [2][2]; /* tv range */
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} x_tv; /* info about .tv section (in auxent of symbol .tv)) */
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};
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#define SYMENT struct external_syment
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#define SYMESZ 18
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#define AUXENT union external_auxent
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#define AUXESZ 18
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/* 1 line number entry for every "breakpointable" source line in a section.
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Line numbers are grouped on a per function basis; first entry in a function
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grouping will have l_lnno = 0 and in place of physical address will be the
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symbol table index of the function name. */
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struct external_lineno
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{
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union
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{
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char l_symndx [4]; /* function name symbol index, iff l_lnno == 0*/
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char l_paddr [4]; /* (physical) address of line number */
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} l_addr;
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char l_lnno [2]; /* line number */
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};
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#define LINENO struct external_lineno
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#define LINESZ 6
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#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_32 (abfd, (bfd_byte *) (ext->l_lnno));
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#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_32 (abfd, val, (bfd_byte *) (ext->l_lnno));
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struct external_scnhdr
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{
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char s_name [8]; /* section name */
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char s_paddr [4]; /* physical address, aliased s_nlib */
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char s_vaddr [4]; /* virtual address */
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char s_size [4]; /* section size */
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char s_scnptr [4]; /* file ptr to raw data for section */
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char s_relptr [4]; /* file ptr to relocation */
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char s_lnnoptr [4]; /* file ptr to line numbers */
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char s_nreloc [2]; /* number of relocation entries */
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char s_nlnno [2]; /* number of line number entries*/
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char s_flags [4]; /* flags */
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};
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#define SCNHDR struct external_scnhdr
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#define SCNHSZ 40
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/* Names of "special" sections. */
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#define _TEXT ".text"
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#define _DATA ".data"
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#define _BSS ".bss"
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#endif /* __COFF_MCORE_H */
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