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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) */
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