Add AIX 64 shared library support and emulation layer for binutils
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Nick Clifton
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@ -1,3 +1,7 @@
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2002-03-18 Tom Rix <trix@redhat.com>
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* rs6k64.h: Add U64_TOCMAGIC, AIX 5 64 bit magic number.
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2002-02-01 Tom Rix <trix@redhat.com>
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* xcoff.h: Conditionally support <aiaff> for pre AIX 4.3.
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@ -1,5 +1,5 @@
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/* IBM RS/6000 "XCOFF64" file definitions for BFD.
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Copyright (C) 2000 Free Software Foundation, Inc.
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Copyright (C) 2000, 2002 Free Software Foundation, Inc.
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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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@ -13,40 +13,39 @@
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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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*/
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/********************** FILE HEADER **********************/
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struct external_filehdr {
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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[8];/* file pointer to symtab */
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char f_opthdr[2]; /* sizeof(optional hdr) */
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char f_flags[2]; /* flags */
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char f_nsyms[4]; /* number of symtab entries */
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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[8]; /* file pointer to symtab */
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char f_opthdr[2]; /* sizeof(optional hdr) */
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char f_flags[2]; /* flags */
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char f_nsyms[4]; /* number of symtab entries */
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};
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/* IBM RS/6000 */
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#define U803XTOCMAGIC 0757 /* readonly text segments and TOC, XCOFF64 */
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#define BADMAG(x) ((x).f_magic != U803XTOCMAGIC)
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/* IBM RS/6000. */
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#define U803XTOCMAGIC 0757 /* Aix 4.3 64-bit XCOFF */
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#define U64_TOCMAGIC 0767 /* AIX 5+ 64-bit XCOFF */
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#define BADMAG(x) ((x).f_magic != U803XTOCMAGIC && (x).f_magic != U64_TOCMAGIC)
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#define FILHDR struct external_filehdr
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#define FILHSZ 24
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/********************** AOUT "OPTIONAL HEADER" **********************/
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typedef struct
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{
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unsigned char magic[2]; /* type of file */
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unsigned char vstamp[2]; /* version stamp */
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unsigned char o_debugger[4]; /* reserved */
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unsigned char text_start[8]; /* base of text used for this file */
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unsigned char data_start[8]; /* base of data used for this file */
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unsigned char o_toc[8]; /* address of TOC */
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unsigned char text_start[8]; /* base of text used for this file */
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unsigned char data_start[8]; /* base of data used for this file */
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unsigned char o_toc[8]; /* address of TOC */
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unsigned char o_snentry[2]; /* section number of entry point */
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unsigned char o_sntext[2]; /* section number of .text section */
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unsigned char o_sndata[2]; /* section number of .data section */
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@ -62,8 +61,8 @@ typedef struct
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unsigned char dsize[8]; /* initialized data " " */
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unsigned char bsize[8]; /* uninitialized data " " */
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unsigned char entry[8]; /* entry pt. */
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unsigned char o_maxstack[8]; /* max stack size (??) */
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unsigned char o_maxdata[8]; /* max data size (??) */
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unsigned char o_maxstack[8]; /* max stack size (??) */
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unsigned char o_maxdata[8]; /* max data size (??) */
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unsigned char o_resv3[16]; /* reserved */
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}
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AOUTHDR;
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@ -74,22 +73,21 @@ AOUTHDR;
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/********************** SECTION HEADER **********************/
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struct external_scnhdr {
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char s_name[8]; /* section name */
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char s_paddr[8]; /* physical address, aliased s_nlib */
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char s_vaddr[8]; /* virtual address */
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char s_size[8]; /* section size */
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char s_scnptr[8]; /* file ptr to raw data for section */
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char s_relptr[8]; /* file ptr to relocation */
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char s_lnnoptr[8]; /* file ptr to line numbers */
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char s_nreloc[4]; /* number of relocation entries */
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char s_nlnno[4]; /* number of line number entries*/
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char s_flags[4]; /* flags */
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char s_pad[4]; /* padding */
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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[8]; /* physical address, aliased s_nlib */
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char s_vaddr[8]; /* virtual address */
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char s_size[8]; /* section size */
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char s_scnptr[8]; /* file ptr to raw data for section */
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char s_relptr[8]; /* file ptr to relocation */
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char s_lnnoptr[8]; /* file ptr to line numbers */
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char s_nreloc[4]; /* number of relocation entries */
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char s_nlnno[4]; /* number of line number entries*/
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char s_flags[4]; /* flags */
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char s_pad[4]; /* padding */
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};
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#define SCNHDR struct external_scnhdr
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#define SCNHSZ 72
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@ -97,24 +95,25 @@ struct external_scnhdr {
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/********************** LINE NUMBERS **********************/
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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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*/
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struct external_lineno {
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union {
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char l_symndx[4];/* function name symbol index, iff l_lnno == 0*/
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char l_paddr[8]; /* (physical) address of line number */
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} l_addr;
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char l_lnno[4]; /* line number */
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};
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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[8]; /* (physical) address of line number */
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} l_addr;
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char l_lnno[4]; /* line number */
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};
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#define LINENO struct external_lineno
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#define LINESZ 12
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/********************** SYMBOLS **********************/
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#define E_SYMNMLEN 8 /* # characters in a symbol name */
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@ -131,16 +130,13 @@ struct external_syment
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char e_numaux[1];
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};
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#define N_BTMASK (017)
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#define N_TMASK (060)
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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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union external_auxent
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{
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struct {
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union {
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struct {
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@ -196,26 +192,23 @@ union external_auxent {
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#define DBXMASK 0x80 /* for dbx storage mask */
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#define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK)
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/* Values for auxtype field in XCOFF64, taken from AIX 4.3 sym.h */
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/* Values for auxtype field in XCOFF64, taken from AIX 4.3 sym.h. */
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#define _AUX_EXCEPT 255
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#define _AUX_FCN 254
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#define _AUX_SYM 253
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#define _AUX_FILE 252
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#define _AUX_CSECT 251
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/********************** RELOCATION DIRECTIVES **********************/
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struct external_reloc {
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struct external_reloc
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{
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char r_vaddr[8];
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char r_symndx[4];
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char r_size[1];
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char r_type[1];
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};
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#define RELOC struct external_reloc
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#define RELSZ 14
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