Copyright (C) 1993-2000, 2002 Free Software Foundation, Inc.
Contributed by David Wood @ New York University.
Modified by Johan Rydberg, <johan.rydberg@netinsight.se>
This file is part of BFD, the Binary File Descriptor library.
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 2 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. */
#ifndef OR32
# define OR32
#endif
struct external_filehdr
{
char f_magic[2];
char f_nscns[2];
char f_timdat[4];
char f_symptr[4];
char f_nsyms[4];
char f_opthdr[2];
char f_flags[2];
};
#define FILHDR struct external_filehdr
#define FILHSZ 20
numbers for Am29000.
(AT&T will assign the "real" magic number). */
#define SIPFBOMAGIC 0572 /* Am29000 (Byte 0 is MSB). */
#define SIPRBOMAGIC 0573 /* Am29000 (Byte 0 is LSB). */
#define OR32_MAGIC_BIG SIPFBOMAGIC
#define OR32_MAGIC_LITTLE SIPRBOMAGIC
#define OR32BADMAG(x) (((x).f_magic!=OR32_MAGIC_BIG) && \
((x).f_magic!=OR32_MAGIC_LITTLE))
#define OMAGIC OR32_MAGIC_BIG
typedef struct external_aouthdr
{
char magic[2];
char vstamp[2];
char tsize[4];
char dsize[4];
char bsize[4];
char entry[4];
char text_start[4];
char data_start[4];
} AOUTHDR;
#define AOUTSZ 28
#define AOUTHDRSZ 28
#define NMAGIC 0410 /* separate i/d executable. */
#define SHMAGIC 0406 /* NYU/Ultra3 shared data executable
(writable text). */
#define _ETEXT "_etext"
struct external_scnhdr
{
char s_name[8];
char s_paddr[4];
char s_vaddr[4];
char s_size[4];
char s_scnptr[4];
char s_relptr[4];
char s_lnnoptr[4];
char s_nreloc[2];
char s_nlnno[2];
char s_flags[4];
};
#define SCNHDR struct external_scnhdr
#define SCNHSZ 40
#define _TEXT ".text"
#define _DATA ".data"
#define _BSS ".bss"
#define _LIT ".lit"
registers which will be relocatable for the OpenRISC 1000.
In instances where it is necessary for a linker to produce an
output file which contains text or data not based at virtual
address 0, e.g. for a ROM, then the linker should accept
address base information as command input and use PAD sections
to skip over unused addresses. */
#define STYP_BSSREG 0x1200 /* Global register area (like STYP_INFO) */
#define STYP_ENVIR 0x2200 /* Environment (like STYP_INFO) */
#define STYP_ABS 0x4000 /* Absolute (allocated, not reloc, loaded) */
struct external_reloc
{
char r_vaddr[4];
char r_symndx[4];
char r_type[2];
};
#define RELOC struct external_reloc
#define RELSZ 10 /* sizeof (RELOC) */
#define R_ABS 0 /* reference is absolute */
#define R_IREL 030 /* instruction relative (jmp/call) */
#define R_IABS 031 /* instruction absolute (jmp/call) */
#define R_ILOHALF 032 /* instruction low half (const) */
#define R_IHIHALF 033 /* instruction high half (consth) part 1 */
#define R_IHCONST 034 /* instruction high half (consth) part 2 */
#define R_BYTE 035 /* relocatable byte value */
#define R_HWORD 036 /* relocatable halfword value */
#define R_WORD 037 /* relocatable word value */
#define R_IGLBLRC 040 /* instruction global register RC */
#define R_IGLBLRA 041 /* instruction global register RA */
#define R_IGLBLRB 042 /* instruction global register RB */
NOTE:
All the "I" forms refer to 29000 instruction formats. The linker is
expected to know how the numeric information is split and/or aligned
within the instruction word(s). R_BYTE works for instructions, too.
If the parameter to a CONSTH instruction is a relocatable type, two
relocation records are written. The first has an r_type of R_IHIHALF
(33 octal) and a normal r_vaddr and r_symndx. The second relocation
record has an r_type of R_IHCONST (34 octal), a normal r_vaddr (which
is redundant), and an r_symndx containing the 32-bit constant offset
to the relocation instead of the actual symbol table index. This
second record is always written, even if the constant offset is zero.
The constant fields of the instruction are set to zero. */
struct external_lineno
{
union
{
char l_symndx[4];
char l_paddr[4];
}
l_addr;
char l_lnno[2];
};
#define LINENO struct external_lineno
#define LINESZ 6 /* sizeof (LINENO) */
#define E_SYMNMLEN 8 /* Number of characters in a symbol name */
struct external_syment
{
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 SYMENT struct external_syment
#define SYMESZ 18
#define C_GLBLREG 19 /* global register */
#define C_EXTREG 20 /* external global register */
#define C_DEFREG 21 /* ext. def. of global register */
#define N_BTMASK (0xf)
#define N_BTSHFT (4)
#define N_TMASK (0x30)
#define N_TSHIFT (2)
definitions. */
#define E_FILNMLEN 14 /* # characters in a file name */
#define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
union external_auxent
{
struct
{
char x_tagndx[4];
union
{
struct
{
char x_lnno[2];
char x_size[2];
}
x_lnsz;
char x_fsize[4];
}
x_misc;
union
{
struct
{
char x_lnnoptr[4];
char x_endndx[4];
}
x_fcn;
struct
{
char x_dimen[E_DIMNUM][2];
}
x_ary;
}
x_fcnary;
char x_tvndx[2];
}
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];
char x_nreloc[2];
char x_nlinno[2];
}
x_scn;
struct
{
char x_tvfill[4];
char x_tvlen[2];
char x_tvran[2][2];
}
x_tv;
(in auxent of symbol .tv)) */
};
#define AUXENT union external_auxent
#define AUXESZ 18
