mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 03:51:15 +08:00
249 lines
7.2 KiB
C
249 lines
7.2 KiB
C
/*** 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 sizeof(FILHDR)
|
|
|
|
|
|
/********************** 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 (sizeof(AOUTHDR))
|
|
#define AOUTSZ (sizeof(AOUTHDR))
|
|
|
|
|
|
|
|
/********************** 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 sizeof(SCNHDR)
|
|
|
|
|
|
/********************** 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 sizeof(LINENO)
|
|
|
|
|
|
/********************** 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
|
|
|
|
#define RELSZ sizeof(struct external_reloc)
|
|
|
|
/* 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) */
|