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author | Tom Rix <trix@redhat.com> | 2001-05-24 20:32:58 +0000 |
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committer | Tom Rix <trix@redhat.com> | 2001-05-24 20:32:58 +0000 |
commit | 3dd657b1d099808f55beac3272b3d41d6048472c (patch) | |
tree | 579376e52b642751da551a60cdea4aea9e7d0df3 /include/coff/rs6000.h | |
parent | 8569c2f5b4e34ad76d917e033e5d68221ecdaa40 (diff) | |
download | fsf-binutils-gdb-3dd657b1d099808f55beac3272b3d41d6048472c.zip fsf-binutils-gdb-3dd657b1d099808f55beac3272b3d41d6048472c.tar.gz fsf-binutils-gdb-3dd657b1d099808f55beac3272b3d41d6048472c.tar.bz2 |
Support for xcoff64
Diffstat (limited to 'include/coff/rs6000.h')
-rw-r--r-- | include/coff/rs6000.h | 266 |
1 files changed, 180 insertions, 86 deletions
diff --git a/include/coff/rs6000.h b/include/coff/rs6000.h index afddc76..0c34861 100644 --- a/include/coff/rs6000.h +++ b/include/coff/rs6000.h @@ -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 +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 @@ -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) |