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Diffstat (limited to 'gdb/nindy-share/coff.h')
| -rw-r--r-- | gdb/nindy-share/coff.h | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/gdb/nindy-share/coff.h b/gdb/nindy-share/coff.h new file mode 100644 index 0000000..b169b71 --- /dev/null +++ b/gdb/nindy-share/coff.h @@ -0,0 +1,336 @@ +/* Copyright 1990, 1992 Free Software Foundation, Inc. + * + * This code was donated by Intel Corp. + * + * This is a coff version of a.out.h to support 80960 debugging from + * a Unix (possibly BSD) host. It's used by: + * o gdb960 to symbols in code generated with Intel (non-GNU) tools. + * o comm960 to convert a b.out file to a coff file for download. + */ + + +/********************** FILE HEADER **********************/ + +struct filehdr { + unsigned short f_magic; /* magic number */ + unsigned short f_nscns; /* number of sections */ + long f_timdat; /* time & date stamp */ + long f_symptr; /* file pointer to symtab */ + long f_nsyms; /* number of symtab entries */ + unsigned short f_opthdr; /* sizeof(optional hdr) */ + unsigned short f_flags; /* flags */ +}; + + +/* Bits for f_flags: + * F_RELFLG relocation info stripped from file + * F_EXEC file is executable (no unresolved externel references) + * F_LNNO line nunbers stripped from file + * F_LSYMS local symbols stripped from file + * F_AR32WR file has byte ordering of an AR32WR machine (e.g. vax) + */ +#define F_RELFLG 0000001 +#define F_EXEC 0000002 +#define F_LNNO 0000004 +#define F_LSYMS 0000010 +#define F_AR32WR 0000400 + + +/* + * Intel 80960 (I960) processor flags. + * F_I960TYPE == mask for processor type field. + */ +#define F_I960TYPE 0170000 +#define F_I960CA 0010000 +#define F_I960FLOAT 0020000 +#define F_I960BA 0030000 +#define F_I960XA 0040000 + +/* + * i80960 Magic Numbers + */ +#define I960ROMAGIC 0540 /* read-only text segments */ +#define I960RWMAGIC 0541 /* read-write text segments */ + +#define I960BADMAG(x) (((x).f_magic!=I960ROMAGIC) && ((x).f_magic!=I960RWMAGIC)) + +#define FILHDR struct filehdr +#define FILHSZ sizeof(FILHDR) + + +/********************** AOUT "OPTIONAL HEADER" **********************/ + +typedef struct { + unsigned long phys_addr; + unsigned long bitarray; +} TAGBITS; + +typedef struct aouthdr { + short magic; /* type of file */ + short vstamp; /* version stamp */ + unsigned long tsize; /* text size in bytes, padded to FW bdry*/ + unsigned long dsize; /* initialized data " " */ + unsigned long bsize; /* uninitialized data " " */ +#if U3B + unsigned long dum1; + unsigned long dum2; /* pad to entry point */ +#endif + unsigned long entry; /* entry pt. */ + unsigned long text_start; /* base of text used for this file */ + unsigned long data_start; /* base of data used for this file */ + unsigned long tagentries; /* number of tag entries to follow */ +} AOUTHDR; + +/* return a pointer to the tag bits array */ + +#define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1)) + +/* compute size of a header */ + +#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentries*sizeof(TAGBITS))) + +/********************** STORAGE CLASSES **********************/ + +#define C_EFCN -1 /* physical end of function */ +#define C_NULL 0 +#define C_AUTO 1 /* automatic variable */ +#define C_EXT 2 /* external symbol */ +#define C_STAT 3 /* static */ +#define C_REG 4 /* register variable */ +#define C_EXTDEF 5 /* external definition */ +#define C_LABEL 6 /* label */ +#define C_ULABEL 7 /* undefined label */ +#define C_MOS 8 /* member of structure */ +#define C_ARG 9 /* function argument */ +#define C_STRTAG 10 /* structure tag */ +#define C_MOU 11 /* member of union */ +#define C_UNTAG 12 /* union tag */ +#define C_TPDEF 13 /* type definition */ +#define C_USTATIC 14 /* undefined static */ +#define C_ENTAG 15 /* enumeration tag */ +#define C_MOE 16 /* member of enumeration */ +#define C_REGPARM 17 /* register parameter */ +#define C_FIELD 18 /* bit field */ +#define C_BLOCK 100 /* ".bb" or ".eb" */ +#define C_FCN 101 /* ".bf" or ".ef" */ +#define C_EOS 102 /* end of structure */ +#define C_FILE 103 /* file name */ +#define C_LINE 104 /* line # reformatted as symbol table entry */ +#define C_ALIAS 105 /* duplicate tag */ +#define C_HIDDEN 106 /* ext symbol in dmert public lib */ + + /* New storage classes for 80960 */ + +#define C_SCALL 107 /* Procedure reachable via system call */ +#define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */ + + +/********************** SECTION HEADER **********************/ + +struct scnhdr { + char s_name[8]; /* section name */ + long s_paddr; /* physical address, aliased s_nlib */ + long s_vaddr; /* virtual address */ + long s_size; /* section size */ + long s_scnptr; /* file ptr to raw data for section */ + long s_relptr; /* file ptr to relocation */ + long s_lnnoptr; /* file ptr to line numbers */ + unsigned short s_nreloc; /* number of relocation entries */ + unsigned short s_nlnno; /* number of line number entries*/ + long s_flags; /* flags */ + unsigned long s_align; /* section alignment */ +}; + +/* + * names of "special" sections + */ +#define _TEXT ".text" +#define _DATA ".data" +#define _BSS ".bss" + +/* + * s_flags "type" + */ +#define STYP_TEXT 0x20 /* section contains text only */ +#define STYP_DATA 0x40 /* section contains data only */ +#define STYP_BSS 0x80 /* section contains bss only */ + +#define SCNHDR struct 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 lineno{ + union { + long l_symndx; /* function name symbol index, iff l_lnno == 0*/ + long l_paddr; /* (physical) address of line number */ + } l_addr; + unsigned short l_lnno; /* line number */ + char padding[2]; /* force alignment */ +}; + +#define LINENO struct lineno +#define LINESZ sizeof(LINENO) + + +/********************** SYMBOLS **********************/ + +#define SYMNMLEN 8 /* # characters in a symbol name */ +#define FILNMLEN 14 /* # characters in a file name */ +#define DIMNUM 4 /* # array dimensions in auxiliary entry */ + + +struct syment { + union { + char _n_name[SYMNMLEN]; /* old COFF version */ + struct { + long _n_zeroes; /* new == 0 */ + long _n_offset; /* offset into string table */ + } _n_n; + char *_n_nptr[2]; /* allows for overlaying */ + } _n; + long n_value; /* value of symbol */ + short n_scnum; /* section number */ + char pad1[2]; /* force alignment */ + unsigned long n_type; /* type and derived type */ + char n_sclass; /* storage class */ + char n_numaux; /* number of aux. entries */ + char pad2[2]; /* force alignment */ +}; + +#define n_name _n._n_name +#define n_zeroes _n._n_n._n_zeroes +#define n_offset _n._n_n._n_offset + +/* + * Relocatable symbols have number of the section in which they are defined, + * or one of the following: + */ +#define N_UNDEF 0 /* undefined symbol */ +#define N_ABS -1 /* value of symbol is absolute */ +#define N_DEBUG -2 /* debugging symbol -- symbol value is meaningless */ + +/* + * Type of a symbol, in low 4 bits of the word + */ +#define T_NULL 0 +#define T_VOID 1 /* function argument (only used by compiler) */ +#define T_CHAR 2 /* character */ +#define T_SHORT 3 /* short integer */ +#define T_INT 4 /* integer */ +#define T_LONG 5 /* long integer */ +#define T_FLOAT 6 /* floating point */ +#define T_DOUBLE 7 /* double word */ +#define T_STRUCT 8 /* structure */ +#define T_UNION 9 /* union */ +#define T_ENUM 10 /* enumeration */ +#define T_MOE 11 /* member of enumeration*/ +#define T_UCHAR 12 /* unsigned character */ +#define T_USHORT 13 /* unsigned short */ +#define T_UINT 14 /* unsigned integer */ +#define T_ULONG 15 /* unsigned long */ +#define T_LNGDBL 16 /* long double */ + + +/* + * derived types + */ +#define DT_PTR 1 /* pointer */ +#define DT_FCN 2 /* function */ +#define DT_ARY 3 /* array */ + +#define N_BTMASK 037 +#define N_TMASK 0140 +#define N_BTSHFT 5 +#define N_TSHIFT 2 + +#define BTYPE(x) ((x) & N_BTMASK) + + +#define ISPTR(x) (((x) & N_TMASK) == (DT_PTR << N_BTSHFT)) +#define ISFCN(x) (((x) & N_TMASK) == (DT_FCN << N_BTSHFT)) +#define ISARY(x) (((x) & N_TMASK) == (DT_ARY << N_BTSHFT)) + +#define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK)) + +union auxent { + struct { + long x_tagndx; /* str, un, or enum tag indx */ + union { + struct { + unsigned short x_lnno; /* declaration line number */ + unsigned short x_size; /* str/union/array size */ + } x_lnsz; + long x_fsize; /* size of function */ + } x_misc; + union { + struct { /* if ISFCN, tag, or .bb */ + long x_lnnoptr; /* ptr to fcn line # */ + long x_endndx; /* entry ndx past block end */ + } x_fcn; + struct { /* if ISARY, up to 4 dimen. */ + unsigned short x_dimen[DIMNUM]; + } x_ary; + } x_fcnary; + unsigned short x_tvndx; /* tv index */ + } x_sym; + + union { + char x_fname[FILNMLEN]; + struct { + long x_zeroes; + long x_offset; + } x_n; + } x_file; + + struct { + long x_scnlen; /* section length */ + unsigned short x_nreloc; /* # relocation entries */ + unsigned short x_nlinno; /* # line numbers */ + } x_scn; + + struct { + long x_stdindx; + } x_sc; + + struct { + unsigned long x_balntry; + } x_bal; + + char a[sizeof(struct syment)]; /* force auxent/syment sizes to match */ +}; + +#define SYMENT struct syment +#define SYMESZ sizeof(SYMENT) +#define AUXENT union auxent +#define AUXESZ sizeof(AUXENT) + +#if VAX || I960 +# define _ETEXT "_etext" +#else +# define _ETEXT "etext" +#endif + +/********************** RELOCATION DIRECTIVES **********************/ + +struct reloc { + long r_vaddr; /* Virtual address of reference */ + long r_symndx; /* Index into symbol table */ + unsigned short r_type; /* Relocation type */ + char pad[2]; /* Unused */ +}; + +/* Only values of r_type GNU/960 cares about */ +#define R_RELLONG 17 /* Direct 32-bit relocation */ +#define R_IPRMED 25 /* 24-bit ip-relative relocation */ +#define R_OPTCALL 27 /* 32-bit optimizable call (leafproc/sysproc) */ + + +#define RELOC struct reloc +#define RELSZ sizeof(RELOC) |