+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.
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 */
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. */
{
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 */
};
} _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 */
{
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;
{
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 */
/* 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
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** */
((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 */
#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
+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 */
+};
-union external_auxent
-{
- struct
- {
- char x_tagndx[4]; /* str, un, or enum tag indx */
+#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 */
+};
- 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 */
+#define LINENO struct external_lineno
+#define LINESZ 6
- } 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;
+/********************** SYMBOLS **********************/
- struct /* if ISARY, up to 4 dimen. */
- {
- char x_dimen[E_DIMNUM][2];
- } x_ary;
+#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 */
- } x_fcnary;
+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];
+};
- char x_tvndx[2]; /* tv index */
- } x_sym;
- union
- {
- char x_fname[E_FILNMLEN];
+#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;
- 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
#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)
/* 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
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. */
-
-#define DO_NOT_DEFINE_AOUTHDR
-#define DO_NOT_DEFINE_SCNHDR
-#define DO_NOT_DEFINE_LINENO
-#define DO_NOT_DEFINE_AUXENT
-#include "coff/external.h"
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+/********************** 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;
#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 **********************/
-/********************** 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 */
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;
+ 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;
+ 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)
#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
#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)
--- /dev/null
+/* 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 */
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