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// COFF file parser
// COFF file structure:
// file header
// optional header
// sections(name, address, size, raw data pointer, reloc entry, ptr to first line, number of lines)
// relocation entries
// symbols (name, value, section, type, class) + optional info
// lines (source file symbol, line number, address of code)
// symbol table
// string table
#define LMAX 0x2200
#define DATA_MAX 0x2200
#define ULMAX 0x400
typedef struct filehdr
{
unsigned short f_magic;
unsigned short f_nscns;
unsigned long f_timdat;
unsigned long f_symptr;
unsigned long f_nsyms;
unsigned short f_opthdr;
unsigned short f_flags;
} filehdr_t;
typedef struct opthdr
{
unsigned short magic;
unsigned long vstamp;
unsigned long proc_type;
unsigned long rom_width_bits;
unsigned long ram_width_bits;
} opthdr_t;
typedef struct scnhdr
{
union
{
char _s_name[8]; /* section name is a string */
struct
{
unsigned long _s_zeroes;
unsigned long _s_offset;
}_s_s;
}_s;
unsigned long s_paddr;
unsigned long s_vaddr;
unsigned long s_size;
unsigned long s_scnptr;
unsigned long s_relptr;
unsigned long s_lnnoptr;
unsigned short s_nreloc;
unsigned short s_nlnno;
unsigned long s_flags;
} scnhdr_t;
typedef struct reloc
{
unsigned long r_vaddr;
unsigned long r_symndx;
short r_offset;
unsigned short r_type;
} reloc_t;
#define SYMNMLEN 8
typedef struct syment
{
union
{
char _n_name[SYMNMLEN];
struct
{
unsigned long _n_zeroes;
unsigned long _n_offset;
} _n_n;
char *_n_nptr[2];
} _n;
unsigned long n_value;
short n_scnum;
unsigned long n_type;
char n_sclass;
unsigned char n_numaux;
} syment_t;
typedef struct coff_lineno
{
unsigned long l_srcndx;
unsigned short l_lnno;
unsigned long l_paddr;
unsigned short l_flags;
unsigned long l_fcnndx;
} coff_lineno_t;
typedef struct aux_file
{
unsigned long x_offset;
unsigned long x_incline;
unsigned char x_flags;
char _unused[11];
} aux_file_t;
typedef struct aux_scn
{
unsigned long x_scnlen;
unsigned short x_nreloc;
unsigned short x_nlinno;
char _unused[12];
} aux_scn_t;
typedef struct aux_tag
{
char _unused[6];
unsigned short x_size;
char _unused2[4];
unsigned long x_endndx;
char _unused3[4];
} aux_tag_t;
typedef struct aux_eos
{
unsigned long x_tagndx;
char _unused[2];
unsigned short x_size;
char _unused2[12];
} aux_eos_t;
typedef struct aux_fcn
{
unsigned long x_tagndx;
unsigned long x_size;
unsigned long x_lnnoptr;
unsigned long x_endndx;
short x_actscnum;
char _unused[2];
} aux_fcn_t;
typedef struct aux_fcn_calls
{
unsigned long x_calleendx;
unsigned long x_is_interrupt;
char _unused[12];
} aux_fcn_calls_t;
#define X_DIMNUM 4
typedef struct aux_arr
{
unsigned long x_tagndx;
unsigned short x_lnno;
unsigned short x_size;
unsigned short x_dimen[X_DIMNUM];
char _unused[4];
} aux_arr_t;
typedef struct aux_eobf
{
char _unused[4];
unsigned short x_lnno;
char _unused2[14];
} aux_eobf_t;
typedef struct aux_bobf
{
char _unused[4];
unsigned short x_lnno;
char _unused2[6];
unsigned long x_endndx;
char _unused3[4];
} aux_bobf_t;
typedef struct aux_var
{
unsigned long x_tagndx;
char _unused[2];
unsigned short x_size;
char _unused2[12];
} aux_var_t;
typedef struct aux_field
{
char _unused[6];
unsigned short x_size;
char _unused2[12];
} aux_field_t;
struct src_i
{
char* label;
int src_file;
int src_line;
};
struct srcfile {
unsigned long l_srcndx;
char* name;
FILE* ptr;
int nlines;
long int *lineptr; //line pointer array
};
struct symbol {
char* name;
int value;
};
FILE* scanSourceFile(struct srcfile *s_files_p);
int analyzeCOFF(char *filename,char* label[LMAX],char* ulabel[ULMAX],struct src_i source_info[LMAX],\
struct srcfile **s_files_p,unsigned short data[0x2200],struct symbol **sym_p, int* nsym);
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