From 96b4ced14f7a673b14b51a7521a07518b54836cb Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Thu, 15 Jul 1993 16:26:31 +0000 Subject: [PATCH] * m88k.h (OMAGIC): Define. (union external_auxent): Move x_fcn back inside x_fcnary. ({GET,PUT}_FCN_{LNNOPTR,ENDNDX}): Adjust accordingly. --- include/coff/ChangeLog | 6 ++ include/coff/m88k.h | 221 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 227 insertions(+) create mode 100644 include/coff/m88k.h diff --git a/include/coff/ChangeLog b/include/coff/ChangeLog index 3bdd88eba44..30c934ff51a 100644 --- a/include/coff/ChangeLog +++ b/include/coff/ChangeLog @@ -1,3 +1,9 @@ +Thu Jul 15 12:23:55 1993 Ian Lance Taylor (ian@tweedledumb.cygnus.com) + + * m88k.h (OMAGIC): Define. + (union external_auxent): Move x_fcn back inside x_fcnary. + ({GET,PUT}_FCN_{LNNOPTR,ENDNDX}): Adjust accordingly. + Sun Jul 11 18:00:18 1993 Jim Kingdon (kingdon@lioth.cygnus.com) * m68k.h: Define MC68KBCSMAGIC. diff --git a/include/coff/m88k.h b/include/coff/m88k.h new file mode 100644 index 00000000000..dcdabad9954 --- /dev/null +++ b/include/coff/m88k.h @@ -0,0 +1,221 @@ +/*** coff information for 88k bcs */ + +/********************** 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 */ +}; + +#define MC88MAGIC 0540 /* 88k BCS executable */ +#define MC88DMAGIC 0541 /* DG/UX executable */ +#define MC88OMAGIC 0555 /* Object file */ + +#define OMAGIC MC88OMAGIC + +#define MC88BADMAG(x) (((x).f_magic!=MC88MAGIC) &&((x).f_magic!=MC88DMAGIC) && ((x).f_magic != MC88OMAGIC)) + +#define FILHDR struct external_filehdr +#define FILHSZ sizeof(FILHDR) + + +/********************** AOUT "OPTIONAL HEADER" **********************/ + + +#define PAGEMAGIC3 0414 /* Split i&d, zero mapped */ +#define PAGEMAGICBCS 0413 + + +typedef struct +{ + char magic[2]; /* type of file */ + char vstamp[2]; /* version stamp */ + char tsize[4]; /* text size in bytes, padded to FW bdry*/ + char dsize[4]; /* initialized data " " */ + char bsize[4]; /* uninitialized data " " */ + char entry[4]; /* entry pt. */ + char text_start[4]; /* base of text used for this file */ + char data_start[4]; /* base of data used for this file */ +} +AOUTHDR; + + +/* compute size of a header */ + +#define AOUTSZ (sizeof(AOUTHDR)) + + +/********************** SECTION HEADER **********************/ + + +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[4]; /* number of relocation entries */ + char s_nlnno[4]; /* number of line number entries*/ + char s_flags[4]; /* flags */ +}; + + +#define SCNHDR struct external_scnhdr +#define SCNHSZ sizeof(SCNHDR) + +/* + * names of "special" sections + */ +#define _TEXT ".text" +#define _DATA ".data" +#define _BSS ".bss" + +/********************** 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[4]; + +}; + +#define LINENO struct external_lineno +#define LINESZ 8 + + +/********************** 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]; + char pad2[2]; +}; + + + + +#define N_BTMASK 017 +#define N_TMASK 060 +#define N_BTSHFT 4 +#define N_TSHIFT 2 + + +/* Note that this isn't the same shape as other coffs */ +union external_auxent { + struct { + char x_tagndx[4]; /* str, un, or enum tag indx */ + /* 4 */ + union { + char x_fsize[4]; /* size of function */ + struct { + char x_lnno[4]; /* declaration line number */ + char x_size[4]; /* str/union/array size */ + } x_lnsz; + } x_misc; + + /* 12 */ + 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; + /* 20 */ + + } 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[4]; /* # relocation entries */ + char x_nlinno[4]; /* # 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)) */ + +}; + +#define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *)ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) +#define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) +#define PUT_FCN_LNNOPTR(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr) +#define PUT_FCN_ENDNDX(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx) +#define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size) +#define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno) +#define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno) +#define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size) +#define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen) +#define GET_SCN_NRELOC(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_nreloc) +#define GET_SCN_NLINNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_nlinno) +#define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen) +#define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc) +#define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_32(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno) +#define GET_LINENO_LNNO(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) (ext->l_lnno)) +#define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_32(abfd,val, (bfd_byte *) (ext->l_lnno)); + + + +#define SYMENT struct external_syment +#define SYMESZ 20 +#define AUXENT union external_auxent +#define AUXESZ 20 + + +/********************** RELOCATION DIRECTIVES **********************/ + +struct external_reloc { + char r_vaddr[4]; + char r_symndx[4]; + char r_type[2]; + char r_offset[2]; +}; + +#define RELOC struct external_reloc +#define RELSZ 12 + +#define DEFAULT_SECTION_ALIGNMENT 8 /* double word */ + +#define NO_TVNDX -- 2.30.2