diff options
Diffstat (limited to 'include/coff/rs6k64.h')
| -rw-r--r-- | include/coff/rs6k64.h | 303 |
1 files changed, 173 insertions, 130 deletions
diff --git a/include/coff/rs6k64.h b/include/coff/rs6k64.h index a8675bd86..c9dd29f5c 100644 --- a/include/coff/rs6k64.h +++ b/include/coff/rs6k64.h @@ -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. */ - -#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; @@ -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 **********************/ -/********************** 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; + 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) @@ -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) |