115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
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/* Copyright (C) 1985 by Manx Software Systems, Inc. */
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#define RECORDSIZE 64
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#define DBG_MAGIC 0x356e /* Magic # for relative .dbg files */
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#define DBG_MAGICROM 0x4d53 /* Magic # for absolute .dbg files */
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#define LINE_MAGIC 0x3039 /* Magic # for line number records */
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#define BLOCK_MAGIC 0x3c48 /* Magic # for block records */
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#define LOCAL_MAGIC 0x3c47 /* Magic # for symbol records */
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#define LOCSIZE 6 /* # of local symbols per record */
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#define BLKSIZE 6 /* # of blocks per record */
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#define STRSIZE (RECORDSIZE/sizeof(struct structab)) /* # of structs/record */
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struct dbgheader {
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short h_stsize; /* 02 */ /* # of struct table entries */
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short h_stpos; /* 04 */ /* record # for start of structs */
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short h_stgsize; /* 06 */ /* # of string table entries */
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unsigned short h_stgbytes; /* 08 */ /* total length of strings */
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short h_stgpos; /* 0a */ /* record # for start of strings */
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short h_linerec; /* 0c */ /* # of line # records */
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short h_blkrec; /* 0e */ /* # of block records */
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short h_symrec; /* 10 */ /* # of symbol table records */
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unsigned short h_abssym; /* 12 */ /* symbol # of first absolute global */
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unsigned short h_codesym; /* 14 */ /* symbol # of first code global */
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unsigned short h_datasym; /* 16 */ /* symbol # of first data global */
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};
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struct structab {
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unsigned short st_tag;
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unsigned short st_size;
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unsigned short st_first; /* first member contained in this struct */
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unsigned short st_last; /* last member "" */
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};
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/* macros for bit field stuff in localsym records for struct members */
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#define FIELDPACK(pos, wid) ((pos)&0x7f | ((wid)&0x7f)<<8)
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#define GETPOS(x) ((x)&0x7f)
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#define GETWID(x) ((x)>>8 & 0x7f)
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/* special flag values for ls_seg */
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#define AUTOFLG -2 /* auto-variable on the stack */
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#define REGFLG -3 /* Register variable */
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#define ARGFLG -4 /* function-parameter on the stack */
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#define AREGFLG -5 /* Register fucntion-parameter */
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#define TDEFFLG -6 /* Typedef */
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struct localsym {
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unsigned short ls_name;
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unsigned short ls_type;
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short ls_struct; /* for bit fields, pos and wid */
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short ls_offset;
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short ls_seg; /* see special flag values above */
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/* for struct members: 0 for standard members, !0 for bit fields */
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};
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struct block {
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short b_function; /* function containing this block */
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unsigned short b_start; /* start of block (relative to function start) */
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unsigned short b_end; /* end of block */
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unsigned short b_first; /* first local contained in this block */
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unsigned short b_last; /* last local "" */
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};
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#define LINEENTRY (RECORDSIZE-5*sizeof(short))
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struct lineinfo {
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unsigned short l_offset, l_seg;
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unsigned short l_file;
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unsigned short l_lnum;
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unsigned char l_data[LINEENTRY];
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};
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/* codes in LINE info blocks */
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#define NEXTREC 0xff /* line info continues in the next line record */
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#define EXTADDR 0x80 /* if bit on then 15 bit address increment */
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#define EXTMAX 0x7f00 /* largest possible displacement + 1 */
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#define db_blk db_u.u_block
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#define db_syms db_u.u_syms
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#define db_line db_u.u_line
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#define db_head db_u.u_head
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typedef struct {
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short db_magic;
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union {
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struct block u_block[BLKSIZE];
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struct localsym u_syms[LOCSIZE];
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struct lineinfo u_line;
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struct dbgheader u_head;
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char u_buffer[RECORDSIZE-sizeof(short)];
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} db_u;
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} dbgrec;
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/* type modifiers */
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#define D_PTR '*'
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#define D_LPTR '#'
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#define D_ARRAY '['
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#define D_FUNC '('
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#define D_FFUNC '{'
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/* base type values (always last char of type string) */
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#define D_CHAR 'c'
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#define D_UCHAR 'C'
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#define D_INT 'i'
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#define D_UINT 'I'
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#define D_LONG 'l'
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#define D_ULONG 'L'
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#define D_FLOAT 'f'
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#define D_DOUBLE 'd'
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#define D_VOID 'v'
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#define D_STRUCT ':' /* type string is followed by struct # */
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#define BASETYPES "cCiIlLfdv:"
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