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- /*** coff information for Apollo M68K */
-
- /********************** 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 */
- };
-
-
- /* Motorola 68000/68008/68010/68020 */
- #define MC68MAGIC 0520
- #define MC68KWRMAGIC 0520 /* writeable text segments */
- #define MC68TVMAGIC 0521
- #define MC68KROMAGIC 0521 /* readonly shareable text segments */
- #define MC68KPGMAGIC 0522 /* demand paged text segments */
- #define M68MAGIC 0210
- #define M68TVMAGIC 0211
-
- /* Apollo 68000-based machines have a different magic number. This comes
- * from /usr/include/apollo/filehdr.h
- */
- #define APOLLOM68KMAGIC 0627
-
- #define OMAGIC M68MAGIC
- #define M68KBADMAG(x) (((x).f_magic!=MC68MAGIC) && ((x).f_magic!=MC68KWRMAGIC) && ((x).f_magic!=MC68TVMAGIC) && \
- ((x).f_magic!=MC68KROMAGIC) && ((x).f_magic!=MC68KPGMAGIC) && ((x).f_magic!=M68MAGIC) && ((x).f_magic!=M68TVMAGIC) && \
- ((x).f_magic!=APOLLOM68KMAGIC) )
-
-
- #define FILHDR struct external_filehdr
- #define FILHSZ 20
-
-
- /********************** AOUT "OPTIONAL HEADER" **********************/
-
- 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 */
- char o_sri[4]; /* Apollo specific - .sri data pointer */
- char o_inlib[4]; /* Apollo specific - .inlib data pointer */
- char vid[8]; /* Apollo specific - 64 bit version ID */
- }
- AOUTHDR;
-
- #define APOLLO_COFF_VERSION_NUMBER 1 /* the value of the aouthdr magic */
- #define AOUTHDRSZ 44
- #define AOUTSZ 44
-
-
-
- /********************** SECTION HEADER **********************/
-
- struct external_scnhdr {
- /* Apollo allow for larger section names by allowing it to be in
- * the string table.
- */
- char s_name[8];
- 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 */
- };
-
- /* If s_zeores is all zeroes, s_offset gives the real location of the name
- * in the string table.
- */
-
- #define s_zeroes section_name.s_name
- #define s_offset (section_name.s_name+4)
-
- /*
- * names of "special" sections
- */
- #define _TEXT ".text"
- #define _DATA ".data"
- #define _BSS ".bss"
- #define _TV ".tv"
- #define _INIT ".init"
- #define _FINI ".fini"
- #define _LINES ".lines"
- #define _BLOCKS ".blocks"
- #define _SRI ".sri" /* Static Resource Information (systype,
- et al.) */
- #define _MIR ".mir" /* Module Information Records */
- #define _APTV ".aptv" /* Apollo-style transfer vectors. */
- #define _INLIB ".inlib" /* Shared Library information */
- #define _RWDI ".rwdi" /* Read/write data initialization directives for
- compressed sections */
- #define _UNWIND ".unwind" /* Stack unwind information */
-
- #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 */
- };
-
-
- #define LINENO struct external_lineno
- #define LINESZ 6
-
-
- /********************** 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];
- };
-
-
-
- #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)) */
-
-
- };
-
- #define SYMENT struct external_syment
- #define SYMESZ 18
- #define AUXENT union external_auxent
- #define AUXESZ 18
-
-
-
- /********************** RELOCATION DIRECTIVES **********************/
-
-
- struct external_reloc {
- char r_vaddr[4];
- char r_symndx[4];
- char r_type[2];
- #ifdef M68K_COFF_OFFSET
- char r_offset[4];
- #endif
-
- };
-
-
- #define RELOC struct external_reloc
-
- #ifdef M68K_COFF_OFFSET
- #define RELSZ 14
- #else
- #define RELSZ 10
- #endif
-
- /* Apollo specific STYP flags */
-
- #define STYP_RELOCATED_NOT_LOADED 0x00010000 /* Section is relocated normally during linking, but need
- not be loaded during program execution */
- #define STYP_DEBUG 0x00020000 /* debug section */
- #define STYP_OVERLAY 0x00040000 /* Section is overlayed */
- #define STYP_INSTRUCTION 0x00200000 /* Section contains executable code */
-
- #define STYP_ZERO 0x00800000 /* Section is initialized to zero */
- #define STYP_INSTALLED 0x02000000 /* Section should be installable in KGT */
- #define STYP_LOOK_INSTALLED 0x04000000 /* Look for section in KGT */
- #define STYP_SECALIGN1 0x08000000 /* Specially aligned section */
- #define STYP_SECALIGN2 0x10000000 /* " " " */
- #define STYP_COMPRESSED 0x20000000 /* No section data per se (s_scnptr = 0), but there are
- initialization directives for it in .rwdi section
- (used in conjunction with STYP_BSS) */
-