| /* 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) |