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Support for xcoff64

This commit is contained in:
Tom Rix 2001-05-24 20:32:58 +00:00
parent 52cd2f88cd
commit 0f674cdc0f
5 changed files with 998 additions and 236 deletions
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8
include/coff/ChangeLog
View File

@ -1,3 +1,11 @@
2001-04-05 Tom Rix <trix@redhat.com>
* rs6000.h : move xcoff32 external structures from xcofflink.
* rs6k64.h : move xcoff64 external structures from xcofflink.
* internal.h : promote 32 bit structure elements to 64 bit
for xcoff64 support
* xcoff.h : New file.
2001-03-23 Nick Clifton <nickc@redhat.com>
* a29k.h: Fix compile time warning.

16
include/coff/internal.h
View File

@ -173,7 +173,7 @@ struct internal_aouthdr
unsigned long tagentries; /* number of tag entries to follow */
/* RS/6000 stuff */
unsigned long o_toc; /* address of TOC */
bfd_vma o_toc; /* address of TOC */
short o_snentry; /* section number for entry point */
short o_sntext; /* section number for text */
short o_sndata; /* section number for data */
@ -184,8 +184,8 @@ struct internal_aouthdr
short o_algndata; /* max alignment for data */
short o_modtype; /* Module type field, 1R,RE,RO */
short o_cputype; /* Encoded CPU type */
unsigned long o_maxstack; /* max stack size allowed. */
unsigned long o_maxdata; /* max data size allowed. */
bfd_vma o_maxstack; /* max stack size allowed. */
bfd_vma o_maxdata; /* max data size allowed. */
/* ECOFF stuff */
bfd_vma bss_start; /* Base of bss section. */
@ -357,8 +357,8 @@ struct internal_lineno
{
union
{
long l_symndx; /* function name symbol index, iff l_lnno == 0*/
long l_paddr; /* (physical) address of line number */
bfd_signed_vma l_symndx; /* function name symbol index, iff l_lnno == 0*/
bfd_signed_vma l_paddr; /* (physical) address of line number */
} l_addr;
unsigned long l_lnno; /* line number */
};
@ -381,7 +381,7 @@ struct internal_syment
} _n_n;
char *_n_nptr[2]; /* allows for overlaying */
} _n;
long n_value; /* value of symbol */
bfd_vma 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 */
@ -468,7 +468,7 @@ union internal_auxent
{
struct
{ /* if ISFCN, tag, or .bb */
long x_lnnoptr; /* ptr to fcn line # */
bfd_signed_vma x_lnnoptr; /* ptr to fcn line # */
union
{ /* entry ndx past block end */
long l;
@ -519,7 +519,7 @@ union internal_auxent
{
union
{ /* csect length or enclosing csect */
long l;
bfd_signed_vma l;
struct coff_ptr_struct *p;
} x_scnlen;
long x_parmhash; /* parm type hash index */

288
include/coff/rs6000.h
View File

@ -1,5 +1,5 @@
/* IBM RS/6000 "XCOFF" file definitions for BFD.
Copyright 1990, 1991, 1993, 1994, 1995 Free Software Foundation, Inc.
Copyright (C) 1990, 1991 Free Software Foundation, Inc.
FIXME: Can someone provide a transliteration of this name into ASCII?
Using the following chars caused a compiler warning on HIUX (so I replaced
them with octal escapes), and isn't useful without an understanding of what
@ -7,10 +7,17 @@
Written by Mimi Ph\373\364ng-Th\345o V\365 of IBM
and John Gilmore of Cygnus Support. */
#define DO_NOT_DEFINE_AOUTHDR
#define DO_NOT_DEFINE_AUXENT
#define L_LNNO_SIZE 2
#include "coff/external.h"
/********************** 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 */
};
/* IBM RS/6000 */
#define U802WRMAGIC 0730 /* writeable text segments **chh** */
@ -21,8 +28,13 @@
((x).f_magic != U802ROMAGIC && (x).f_magic != U802WRMAGIC && \
(x).f_magic != U802TOCMAGIC)
#define FILHDR struct external_filehdr
#define FILHSZ 20
/********************** AOUT "OPTIONAL HEADER" **********************/
typedef struct
{
unsigned char magic[2]; /* type of file */
@ -54,115 +66,149 @@ AOUTHDR;
#define SMALL_AOUTSZ (28)
#define AOUTHDRSZ 72
#define RS6K_AOUTHDR_OMAGIC 0x0107 /* old: text & data writeable */
#define RS6K_AOUTHDR_NMAGIC 0x0108 /* new: text r/o, data r/w */
#define RS6K_AOUTHDR_ZMAGIC 0x010B /* paged: text r/o, both page-aligned */
/********************** SECTION HEADER **********************/
/* More names of "special" sections. */
#define _PAD ".pad"
#define _LOADER ".loader"
/* XCOFF uses a special .loader section with type STYP_LOADER. */
#define STYP_LOADER 0x1000
/* XCOFF uses a special .debug section with type STYP_DEBUG. */
#define STYP_DEBUG 0x2000
/* XCOFF handles line number or relocation overflow by creating
another section header with STYP_OVRFLO set. */
#define STYP_OVRFLO 0x8000
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 */
} 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)) */
struct
{
unsigned char x_scnlen[4];
unsigned char x_parmhash[4];
unsigned char x_snhash[2];
unsigned char x_smtyp[1];
unsigned char x_smclas[1];
unsigned char x_stab[4];
unsigned char x_snstab[2];
} x_csect;
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
/********************** 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
{
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 (017)
#define N_TMASK (060)
#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 */
} 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)) */
struct {
unsigned char x_scnlen[4];
unsigned char x_parmhash[4];
unsigned char x_snhash[2];
unsigned char x_smtyp[1];
unsigned char x_smclas[1];
unsigned char x_stab[4];
unsigned char x_snstab[2];
} x_csect;
};
#define SYMENT struct external_syment
#define SYMESZ 18
#define AUXENT union external_auxent
#define AUXESZ 18
#define DBXMASK 0x80 /* for dbx storage mask */
#define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK)
/********************** RELOCATION DIRECTIVES **********************/
struct external_reloc
{
struct external_reloc {
char r_vaddr[4];
char r_symndx[4];
char r_size[1];
char r_type[1];
};
#define RELOC struct external_reloc
#define RELSZ 10
@ -171,3 +217,51 @@ struct external_reloc
#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
/* For new sections we havn't heard of before */
#define DEFAULT_SECTION_ALIGNMENT 4
/* The ldhdr structure. This appears at the start of the .loader
section. */
struct external_ldhdr
{
bfd_byte l_version[4];
bfd_byte l_nsyms[4];
bfd_byte l_nreloc[4];
bfd_byte l_istlen[4];
bfd_byte l_nimpid[4];
bfd_byte l_impoff[4];
bfd_byte l_stlen[4];
bfd_byte l_stoff[4];
};
#define LDHDRSZ (8 * 4)
struct external_ldsym
{
union
{
bfd_byte _l_name[SYMNMLEN];
struct
{
bfd_byte _l_zeroes[4];
bfd_byte _l_offset[4];
} _l_l;
} _l;
bfd_byte l_value[4];
bfd_byte l_scnum[2];
bfd_byte l_smtype[1];
bfd_byte l_smclas[1];
bfd_byte l_ifile[4];
bfd_byte l_parm[4];
};
#define LDSYMSZ (8 + 3 * 4 + 2 + 2)
struct external_ldrel
{
bfd_byte l_vaddr[4];
bfd_byte l_symndx[4];
bfd_byte l_rtype[2];
bfd_byte l_rsecnm[2];
};
#define LDRELSZ (2 * 4 + 2 * 2)

305
include/coff/rs6k64.h
View File

@ -1,6 +1,5 @@
/* IBM RS/6000 "XCOFF64" file definitions for BFD.
Copyright 2000 Free Software Foundation, Inc.
Copyright (C) 2000 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
@ -14,47 +13,58 @@
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#define DO_NOT_DEFINE_AOUTHDR
#define DO_NOT_DEFINE_SCNHDR
#define DO_NOT_DEFINE_LINENO
#define DO_NOT_DEFINE_AUXENT
#include "coff/external.h"
/********************** 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[8];/* file pointer to symtab */
char f_opthdr[2]; /* sizeof(optional hdr) */
char f_flags[2]; /* flags */
char f_nsyms[4]; /* number of symtab entries */
};
/* IBM RS/6000 */
#define U803XTOCMAGIC 0757 /* readonly text segments and TOC, XCOFF64 */
#define BADMAG(x) ((x).f_magic != U803XTOCMAGIC)
#define FILHDR struct external_filehdr
#define FILHSZ 24
/********************** AOUT "OPTIONAL HEADER" **********************/
typedef struct
{
unsigned char magic[2]; /* type of file */
unsigned char vstamp[2]; /* version stamp */
unsigned char o_debugger[4]; /* reserved */
unsigned char magic[2]; /* type of file */
unsigned char vstamp[2]; /* version stamp */
unsigned char o_debugger[4]; /* reserved */
unsigned char text_start[8]; /* base of text used for this file */
unsigned char data_start[8]; /* base of data used for this file */
unsigned char o_toc[8]; /* address of TOC */
unsigned char o_snentry[2]; /* section number of entry point */
unsigned char o_sntext[2]; /* section number of .text section */
unsigned char o_sndata[2]; /* section number of .data section */
unsigned char o_sntoc[2]; /* section number of TOC */
unsigned char o_snloader[2]; /* section number of .loader section */
unsigned char o_snbss[2]; /* section number of .bss section */
unsigned char o_algntext[2]; /* .text alignment */
unsigned char o_algndata[2]; /* .data alignment */
unsigned char o_modtype[2]; /* module type (??) */
unsigned char o_cputype[2]; /* cpu type */
unsigned char o_resv2[4]; /* reserved */
unsigned char tsize[8]; /* text size bytes, padded to FW bdry */
unsigned char dsize[8]; /* initialized data " " */
unsigned char bsize[8]; /* uninitialized data " " */
unsigned char entry[8]; /* entry pt. */
unsigned char o_snentry[2]; /* section number of entry point */
unsigned char o_sntext[2]; /* section number of .text section */
unsigned char o_sndata[2]; /* section number of .data section */
unsigned char o_sntoc[2]; /* section number of TOC */
unsigned char o_snloader[2]; /* section number of .loader section */
unsigned char o_snbss[2]; /* section number of .bss section */
unsigned char o_algntext[2]; /* .text alignment */
unsigned char o_algndata[2]; /* .data alignment */
unsigned char o_modtype[2]; /* module type (??) */
unsigned char o_cputype[2]; /* cpu type */
unsigned char o_resv2[4]; /* reserved */
unsigned char tsize[8]; /* text size bytes, padded to FW bdry */
unsigned char dsize[8]; /* initialized data " " */
unsigned char bsize[8]; /* uninitialized data " " */
unsigned char entry[8]; /* entry pt. */
unsigned char o_maxstack[8]; /* max stack size (??) */
unsigned char o_maxdata[8]; /* max data size (??) */
unsigned char o_resv3[16]; /* reserved */
unsigned char o_resv3[16]; /* reserved */
}
AOUTHDR;
@ -62,15 +72,11 @@ AOUTHDR;
#define SMALL_AOUTSZ (0)
#define AOUTHDRSZ 72
#define RS6K_AOUTHDR_OMAGIC 0x0107 /* old: text & data writeable */
#define RS6K_AOUTHDR_NMAGIC 0x0108 /* new: text r/o, data r/w */
#define RS6K_AOUTHDR_ZMAGIC 0x010B /* paged: text r/o, both page-aligned */
/********************** SECTION HEADER **********************/
struct external_scnhdr
{
char s_name[8]; /* section name */
struct external_scnhdr {
char s_name[8]; /* section name */
char s_paddr[8]; /* physical address, aliased s_nlib */
char s_vaddr[8]; /* virtual address */
char s_size[8]; /* section size */
@ -79,121 +85,114 @@ struct external_scnhdr
char s_lnnoptr[8]; /* file ptr to line numbers */
char s_nreloc[4]; /* number of relocation entries */
char s_nlnno[4]; /* number of line number entries*/
char s_flags[4]; /* flags */
char s_pad[4]; /* padding */
char s_flags[4]; /* flags */
char s_pad[4]; /* padding */
};
/*
* names of "special" sections
*/
#define _TEXT ".text"
#define _DATA ".data"
#define _BSS ".bss"
#define _PAD ".pad"
#define _LOADER ".loader"
#define SCNHDR struct external_scnhdr
#define SCNHSZ 72
/* XCOFF uses a special .loader section with type STYP_LOADER. */
#define STYP_LOADER 0x1000
/* XCOFF uses a special .debug section with type STYP_DEBUG. */
#define STYP_DEBUG 0x2000
/* XCOFF handles line number or relocation overflow by creating
another section header with STYP_OVRFLO set. */
#define STYP_OVRFLO 0x8000
/********************** 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[8];/* function name symbol index, iff l_lnno == 0*/
char l_paddr[8]; /* (physical) address of line number */
} l_addr;
char l_lnno[4]; /* line number */
* 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[8]; /* (physical) address of line number */
} l_addr;
char l_lnno[4]; /* line number */
};
#define LINENO struct external_lineno
#define LINESZ 12
union external_auxent
/********************** 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
{
union
{
struct
{
char x_lnno[4]; /* declaration line number */
char x_size[2]; /* str/union/array size */
} x_lnsz;
struct
{
char x_lnnoptr[8];/* ptr to fcn line */
char x_fsize[4]; /* size of function */
char x_endndx[4]; /* entry ndx past block end */
} x_fcn;
} x_fcnary;
} x_sym;
union
{
char x_fname[E_FILNMLEN];
struct
{
char x_zeroes[4];
char x_offset[4];
char x_pad[6];
unsigned char x_ftype[1];
unsigned char x_resv[2];
} x_n;
} x_file;
struct
{
char x_exptr[8];
char x_fsize[4];
char x_endndx[4];
char x_pad[1];
} x_except;
struct
{
unsigned char x_scnlen_lo[4];
unsigned char x_parmhash[4];
unsigned char x_snhash[2];
unsigned char x_smtyp[1];
unsigned char x_smclas[1];
unsigned char x_scnlen_hi[4];
unsigned char x_pad[1];
} x_csect;
struct
{
char x_pad[17];
char x_auxtype[1];
} x_auxtype;
char e_value[8];
char e_offset[4];
char e_scnum[2];
char e_type[2];
char e_sclass[1];
char e_numaux[1];
};
#define N_BTMASK (017)
#define N_TMASK (060)
#define N_BTSHFT (4)
#define N_TSHIFT (2)
union external_auxent {
struct {
union {
struct {
char x_lnno[4]; /* declaration line number */
char x_size[2]; /* str/union/array size */
} x_lnsz;
struct {
char x_lnnoptr[8];/* ptr to fcn line */
char x_fsize[4]; /* size of function */
char x_endndx[4]; /* entry ndx past block end */
} x_fcn;
} x_fcnary;
} x_sym;
union {
char x_fname[E_FILNMLEN];
struct {
char x_zeroes[4];
char x_offset[4];
char x_pad[6];
unsigned char x_ftype[1];
unsigned char x_resv[2];
} x_n;
} x_file;
struct {
char x_exptr[8];
char x_fsize[4];
char x_endndx[4];
char x_pad[1];
} x_except;
struct {
unsigned char x_scnlen_lo[4];
unsigned char x_parmhash[4];
unsigned char x_snhash[2];
unsigned char x_smtyp[1];
unsigned char x_smclas[1];
unsigned char x_scnlen_hi[4];
unsigned char x_pad[1];
} x_csect;
struct {
char x_pad[17];
char x_auxtype[1];
} x_auxtype;
};
#define SYMENT struct external_syment
#define SYMESZ 18
#define AUXENT union external_auxent
#define AUXESZ 18
#define DBXMASK 0x80 /* for dbx storage mask */
#define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK)
@ -204,16 +203,19 @@ union external_auxent
#define _AUX_FILE 252
#define _AUX_CSECT 251
/********************** RELOCATION DIRECTIVES **********************/
struct external_reloc
{
struct external_reloc {
char r_vaddr[8];
char r_symndx[4];
char r_size[1];
char r_type[1];
};
#define RELOC struct external_reloc
#define RELSZ 14
@ -222,3 +224,44 @@ struct external_reloc
#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
/* For new sections we havn't heard of before */
#define DEFAULT_SECTION_ALIGNMENT 4
/* The ldhdr structure. This appears at the start of the .loader
section. */
struct external_ldhdr
{
bfd_byte l_version[4];
bfd_byte l_nsyms[4];
bfd_byte l_nreloc[4];
bfd_byte l_istlen[4];
bfd_byte l_nimpid[4];
bfd_byte l_stlen[4];
bfd_byte l_impoff[8];
bfd_byte l_stoff[8];
bfd_byte l_symoff[8];
bfd_byte l_rldoff[8];
};
#define LDHDRSZ (56)
struct external_ldsym
{
bfd_byte l_value[8];
bfd_byte l_offset[4];
bfd_byte l_scnum[2];
bfd_byte l_smtype[1];
bfd_byte l_smclas[1];
bfd_byte l_ifile[4];
bfd_byte l_parm[4];
};
#define LDSYMSZ (24)
struct external_ldrel
{
bfd_byte l_vaddr[8];
bfd_byte l_rtype[2];
bfd_byte l_rsecnm[2];
bfd_byte l_symndx[4];
};
#define LDRELSZ (16)

617
include/coff/xcoff.h Normal file
View File

@ -0,0 +1,617 @@
/* Internal format of XCOFF object file data structures for BFD.
Copyright 1995, 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
Written by Ian Lance Taylor <ian@cygnus.com>, Cygnus Support.
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef _INTERNAL_XCOFF_H
#define _INTERNAL_XCOFF_H
/*
* LINKER
*/
/*
* names of "special" sections
*/
#define _TEXT ".text"
#define _DATA ".data"
#define _BSS ".bss"
#define _PAD ".pad"
#define _LOADER ".loader"
/* XCOFF uses a special .loader section with type STYP_LOADER. */
#define STYP_LOADER 0x1000
/* XCOFF uses a special .debug section with type STYP_DEBUG. */
#define STYP_DEBUG 0x2000
/* XCOFF handles line number or relocation overflow by creating
another section header with STYP_OVRFLO set. */
#define STYP_OVRFLO 0x8000
#define RS6K_AOUTHDR_OMAGIC 0x0107 /* old: text & data writeable */
#define RS6K_AOUTHDR_NMAGIC 0x0108 /* new: text r/o, data r/w */
#define RS6K_AOUTHDR_ZMAGIC 0x010B /* paged: text r/o, both page-aligned */
/* XCOFF relocation types.
The relocations are described in the function
xcoff[64]_ppc_relocate_section in coff64-rs6000.c and coff-rs6000.c */
#define R_POS (0x00)
#define R_NEG (0x01)
#define R_REL (0x02)
#define R_TOC (0x03)
#define R_RTB (0x04)
#define R_GL (0x05)
#define R_TCL (0x06)
#define R_BA (0x08)
#define R_BR (0x0a)
#define R_RL (0x0c)
#define R_RLA (0x0d)
#define R_REF (0x0f)
#define R_TRL (0x12)
#define R_TRLA (0x13)
#define R_RRTBI (0x14)
#define R_RRTBA (0x15)
#define R_CAI (0x16)
#define R_CREL (0x17)
#define R_RBA (0x18)
#define R_RBAC (0x19)
#define R_RBR (0x1a)
#define R_RBRC (0x1b)
/*
* Storage class #defines, from /usr/include/storclass.h
* That are not already defined in internal.h
*/
#define C_INFO 110 /* Comment string in .info section */
/*
* AUXILLARY SYMBOL ENTRIES
*
* auxemt
*/
/* x_smtyp values: */
#define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */
#define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */
/* Symbol type values: */
#define XTY_ER 0 /* External reference */
#define XTY_SD 1 /* Csect definition */
#define XTY_LD 2 /* Label definition */
#define XTY_CM 3 /* .BSS */
#define XTY_EM 4 /* Error message */
#define XTY_US 5 /* "Reserved for internal use" */
/* x_smclas values: */
#define XMC_PR 0 /* Read-only program code */
#define XMC_RO 1 /* Read-only constant */
#define XMC_DB 2 /* Read-only debug dictionary table */
#define XMC_TC 3 /* Read-write general TOC entry */
#define XMC_UA 4 /* Read-write unclassified */
#define XMC_RW 5 /* Read-write data */
#define XMC_GL 6 /* Read-only global linkage */
#define XMC_XO 7 /* Read-only extended operation */
#define XMC_SV 8 /* Read-only supervisor call */
#define XMC_BS 9 /* Read-write BSS */
#define XMC_DS 10 /* Read-write descriptor csect */
#define XMC_UC 11 /* Read-write unnamed Fortran common */
#define XMC_TI 12 /* Read-only traceback index csect */
#define XMC_TB 13 /* Read-only traceback table csect */
/* 14 ??? */
#define XMC_TC0 15 /* Read-write TOC anchor */
#define XMC_TD 16 /* Read-write data in TOC */
/* The ldhdr structure. This appears at the start of the .loader
section. */
struct internal_ldhdr
{
/*
* The version number:
* 1 : 32 bit
* 2 : 64 bit
*/
unsigned long l_version;
/* The number of symbol table entries. */
bfd_size_type l_nsyms;
/* The number of relocation table entries. */
bfd_size_type l_nreloc;
/* The length of the import file string table. */
bfd_size_type l_istlen;
/* The number of import files. */
bfd_size_type l_nimpid;
/* The offset from the start of the .loader section to the first
entry in the import file table. */
bfd_size_type l_impoff;
/* The length of the string table. */
bfd_size_type l_stlen;
/* The offset from the start of the .loader section to the first
entry in the string table. */
bfd_size_type l_stoff;
/* The offset to start of the symbol table, only in XCOFF64 */
bfd_vma l_symoff;
/* The offset to the start of the relocation table, only in XCOFF64 */
bfd_vma l_rldoff;
};
/* The ldsym structure. This is used to represent a symbol in the
.loader section. */
struct internal_ldsym
{
union
{
/* The symbol name if <= SYMNMLEN characters. */
char _l_name[SYMNMLEN];
struct
{
/* Zero if the symbol name is more than SYMNMLEN characters. */
long _l_zeroes;
/* The offset in the string table if the symbol name is more
than SYMNMLEN characters. */
long _l_offset;
} _l_l;
} _l;
/* The symbol value. */
bfd_vma l_value;
/* The symbol section number. */
short l_scnum;
/* The symbol type and flags. */
char l_smtype;
/* The symbol storage class. */
char l_smclas;
/* The import file ID. */
bfd_size_type l_ifile;
/* Offset to the parameter type check string. */
bfd_size_type l_parm;
};
/* These flags are for the l_smtype field (the lower three bits are an
XTY_* value). */
/* Imported symbol. */
#define L_IMPORT (0x40)
/* Entry point. */
#define L_ENTRY (0x20)
/* Exported symbol. */
#define L_EXPORT (0x10)
/* The ldrel structure. This is used to represent a reloc in the
.loader section. */
struct internal_ldrel
{
/* The reloc address. */
bfd_vma l_vaddr;
/* The symbol table index in the .loader section symbol table. */
bfd_size_type l_symndx;
/* The relocation type and size. */
short l_rtype;
/* The section number this relocation applies to. */
short l_rsecnm;
};
/* An entry in the XCOFF linker hash table. */
struct xcoff_link_hash_entry
{
struct bfd_link_hash_entry root;
/* Symbol index in output file. Set to -1 initially. Set to -2 if
there is a reloc against this symbol. */
long indx;
/* If we have created a TOC entry for this symbol, this is the .tc
section which holds it. */
asection *toc_section;
union
{
/* If we have created a TOC entry (the XCOFF_SET_TOC flag is
set), this is the offset in toc_section. */
bfd_vma toc_offset;
/* If the TOC entry comes from an input file, this is set to the
symbol index of the C_HIDEXT XMC_TC or XMC_TD symbol. */
long toc_indx;
} u;
/* If this symbol is a function entry point which is called, this
field holds a pointer to the function descriptor. If this symbol
is a function descriptor, this field holds a pointer to the
function entry point. */
struct xcoff_link_hash_entry *descriptor;
/* The .loader symbol table entry, if there is one. */
struct internal_ldsym *ldsym;
/* If XCOFF_BUILT_LDSYM is set, this is the .loader symbol table
index. If XCOFF_BUILD_LDSYM is clear, and XCOFF_IMPORT is set,
this is the l_ifile value. */
long ldindx;
/* Some linker flags. */
unsigned long flags;
/* The storage mapping class. */
unsigned char smclas;
};
/*
* #define for xcoff_link_hash_entry.flags
*
* XCOFF_REF_REGULAR
* Symbol is referenced by a regular object.
*
* XCOFF_DEF_REGULAR
* Symbol is defined by a regular object.
*
* XCOFF_DEF_DYNAMIC
* Symbol is defined by a dynamic object.
*
* XCOFF_LDREL
* Symbol is used in a reloc being copied into the .loader section.
*
* XCOFF_ENTRY
* Symbol is the entry point.
*
* XCOFF_CALLED
* Symbol is called; this is, it appears in a R_BR reloc.
*
* XCOFF_SET_TOC
* Symbol needs the TOC entry filled in.
*
* XCOFF_IMPORT
* Symbol is explicitly imported.
*
* XCOFF_EXPORT
* Symbol is explicitly exported.
*
* XCOFF_BUILT_LDSYM
* Symbol has been processed by xcoff_build_ldsyms.
*
* XCOFF_MARK
* Symbol is mentioned by a section which was not garbage collected.
*
* XCOFF_HAS_SIZE
* Symbol size is recorded in size_list list from hash table.
*
* XCOFF_DESCRIPTOR
* Symbol is a function descriptor.
*
* XCOFF_MULTIPLY_DEFINED
* Multiple definitions have been for the symbol.
*
* XCOFF_RTINIT
* Symbol is the __rtinit symbol
*
*/
#define XCOFF_REF_REGULAR 0x00000001
#define XCOFF_DEF_REGULAR 0x00000002
#define XCOFF_DEF_DYNAMIC 0x00000004
#define XCOFF_LDREL 0x00000008
#define XCOFF_ENTRY 0x00000010
#define XCOFF_CALLED 0x00000020
#define XCOFF_SET_TOC 0x00000040
#define XCOFF_IMPORT 0x00000080
#define XCOFF_EXPORT 0x00000100
#define XCOFF_BUILT_LDSYM 0x00000200
#define XCOFF_MARK 0x00000400
#define XCOFF_HAS_SIZE 0x00000800
#define XCOFF_DESCRIPTOR 0x00001000
#define XCOFF_MULTIPLY_DEFINED 0x00002000
#define XCOFF_RTINIT 0x00004000
/* The XCOFF linker hash table. */
#define XCOFF_NUMBER_OF_SPECIAL_SECTIONS 6
#define XCOFF_SPECIAL_SECTION_TEXT 0
#define XCOFF_SPECIAL_SECTION_ETEXT 1
#define XCOFF_SPECIAL_SECTION_DATA 2
#define XCOFF_SPECIAL_SECTION_EDATA 3
#define XCOFF_SPECIAL_SECTION_END 4
#define XCOFF_SPECIAL_SECTION_END2 5
struct xcoff_link_hash_table
{
struct bfd_link_hash_table root;
/* The .debug string hash table. We need to compute this while
reading the input files, so that we know how large the .debug
section will be before we assign section positions. */
struct bfd_strtab_hash *debug_strtab;
/* The .debug section we will use for the final output. */
asection *debug_section;
/* The .loader section we will use for the final output. */
asection *loader_section;
/* A count of non TOC relative relocs which will need to be
allocated in the .loader section. */
size_t ldrel_count;
/* The .loader section header. */
struct internal_ldhdr ldhdr;
/* The .gl section we use to hold global linkage code. */
asection *linkage_section;
/* The .tc section we use to hold toc entries we build for global
linkage code. */
asection *toc_section;
/* The .ds section we use to hold function descriptors which we
create for exported symbols. */
asection *descriptor_section;
/* The list of import files. */
struct xcoff_import_file *imports;
/* Required alignment of sections within the output file. */
unsigned long file_align;
/* Whether the .text section must be read-only. */
boolean textro;
/* Whether garbage collection was done. */
boolean gc;
/* A linked list of symbols for which we have size information. */
struct xcoff_link_size_list
{
struct xcoff_link_size_list *next;
struct xcoff_link_hash_entry *h;
bfd_size_type size;
} *size_list;
/* Magic sections: _text, _etext, _data, _edata, _end, end. */
asection *special_sections[XCOFF_NUMBER_OF_SPECIAL_SECTIONS];
};
/* This structure is used to pass information through
xcoff_link_hash_traverse. */
struct xcoff_loader_info
{
/* Set if a problem occurred. */
boolean failed;
/* Output BFD. */
bfd *output_bfd;
/* Link information structure. */
struct bfd_link_info *info;
/* Whether all defined symbols should be exported. */
boolean export_defineds;
/* Number of ldsym structures. */
size_t ldsym_count;
/* Size of string table. */
size_t string_size;
/* String table. */
bfd_byte *strings;
/* Allocated size of string table. */
size_t string_alc;
};
/* In case we're on a 32-bit machine, construct a 64-bit "-1" value
from smaller values. Start with zero, widen, *then* decrement. */
#define MINUS_ONE (((bfd_vma)0) - 1)
/*
* __rtinit
* from /usr/include/rtinit.h
*/
struct __rtinit {
int (*rtl)(); /* Pointer to runtime linker */
int init_offset; /* Offset to array of init functions
(0 if none). */
int fini_offset; /* Offset to array of fini functions
(0 if none). */
int __rtinit_descriptor_size; /* Size of __RTINIT_DESCRIPTOR.
This value should be used instead
of sizeof(__RTINIT_DESCRIPTOR). */
};
#define RTINIT_DESCRIPTOR_SIZE (12)
struct __rtinit_descriptor {
int f; /* Init/fini function. */
int name_offset; /* Offset (within __rtinit symbol)
to name of function. */
unsigned char flags; /* Flags */
};
/*
* ARCHIVE
*/
#define XCOFFARMAG "<aiaff>\012"
#define XCOFFARMAGBIG "<bigaf>\012"
#define SXCOFFARMAG 8
/* This terminates an XCOFF archive member name. */
#define XCOFFARFMAG "`\012"
#define SXCOFFARFMAG 2
/* XCOFF archives start with this (printable) structure. */
struct xcoff_ar_file_hdr
{
/* Magic string. */
char magic[SXCOFFARMAG];
/* Offset of the member table (decimal ASCII string). */
char memoff[12];
/* Offset of the global symbol table (decimal ASCII string). */
char symoff[12];
/* Offset of the first member in the archive (decimal ASCII string). */
char firstmemoff[12];
/* Offset of the last member in the archive (decimal ASCII string). */
char lastmemoff[12];
/* Offset of the first member on the free list (decimal ASCII
string). */
char freeoff[12];
};
#define SIZEOF_AR_FILE_HDR (5 * 12 + SXCOFFARMAG)
/* This is the equivalent data structure for the big archive format. */
struct xcoff_ar_file_hdr_big
{
/* Magic string. */
char magic[SXCOFFARMAG];
/* Offset of the member table (decimal ASCII string). */
char memoff[20];
/* Offset of the global symbol table for 32-bit objects (decimal ASCII
string). */
char symoff[20];
/* Offset of the global symbol table for 64-bit objects (decimal ASCII
string). */
char symoff64[20];
/* Offset of the first member in the archive (decimal ASCII string). */
char firstmemoff[20];
/* Offset of the last member in the archive (decimal ASCII string). */
char lastmemoff[20];
/* Offset of the first member on the free list (decimal ASCII
string). */
char freeoff[20];
};
#define SIZEOF_AR_FILE_HDR_BIG (6 * 20 + SXCOFFARMAG)
/* Each XCOFF archive member starts with this (printable) structure. */
struct xcoff_ar_hdr
{
/* File size not including the header (decimal ASCII string). */
char size[12];
/* File offset of next archive member (decimal ASCII string). */
char nextoff[12];
/* File offset of previous archive member (decimal ASCII string). */
char prevoff[12];
/* File mtime (decimal ASCII string). */
char date[12];
/* File UID (decimal ASCII string). */
char uid[12];
/* File GID (decimal ASCII string). */
char gid[12];
/* File mode (octal ASCII string). */
char mode[12];
/* Length of file name (decimal ASCII string). */
char namlen[4];
/* This structure is followed by the file name. The length of the
name is given in the namlen field. If the length of the name is
odd, the name is followed by a null byte. The name and optional
null byte are followed by XCOFFARFMAG, which is not included in
namlen. The contents of the archive member follow; the number of
bytes is given in the size field. */
};
#define SIZEOF_AR_HDR (7 * 12 + 4)
/* The equivalent for the big archive format. */
struct xcoff_ar_hdr_big
{
/* File size not including the header (decimal ASCII string). */
char size[20];
/* File offset of next archive member (decimal ASCII string). */
char nextoff[20];
/* File offset of previous archive member (decimal ASCII string). */
char prevoff[20];
/* File mtime (decimal ASCII string). */
char date[12];
/* File UID (decimal ASCII string). */
char uid[12];
/* File GID (decimal ASCII string). */
char gid[12];
/* File mode (octal ASCII string). */
char mode[12];
/* Length of file name (decimal ASCII string). */
char namlen[4];
/* This structure is followed by the file name. The length of the
name is given in the namlen field. If the length of the name is
odd, the name is followed by a null byte. The name and optional
null byte are followed by XCOFFARFMAG, which is not included in
namlen. The contents of the archive member follow; the number of
bytes is given in the size field. */
};
#define SIZEOF_AR_HDR_BIG (3 * 20 + 4 * 12 + 4)
/* We often have to distinguish between the old and big file format.
Make it a bit cleaner. We can use `xcoff_ardata' here because the
`hdr' member has the same size and position in both formats. */
#define xcoff_big_format_p(abfd) \
(xcoff_ardata (abfd)->magic[1] == 'b')
/* We store a copy of the xcoff_ar_file_hdr in the tdata field of the
artdata structure. Similar for the big archive. */
#define xcoff_ardata(abfd) \
((struct xcoff_ar_file_hdr *) bfd_ardata (abfd)->tdata)
#define xcoff_ardata_big(abfd) \
((struct xcoff_ar_file_hdr_big *) bfd_ardata (abfd)->tdata)
/* We store a copy of the xcoff_ar_hdr in the arelt_data field of an
archive element. Similar for the big archive. */
#define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data))
#define arch_xhdr(bfd) \
((struct xcoff_ar_hdr *) arch_eltdata (bfd)->arch_header)
#define arch_xhdr_big(bfd) \
((struct xcoff_ar_hdr_big *) arch_eltdata (bfd)->arch_header)
#endif /* _INTERNAL_XCOFF_H */