a.out.h

#ifndef _AOUT_H
# define _AOUT_H 1
 
# define OMAGIC 0407
# define NMAGIC 0410
# define ZMAGIC 0413
 
# define N_BAGMAG(x) \
    (x.a_magic != OMAGIC && x.a_magic != NMAGIC && x.a_magic != ZMAGIC)
 
struct exec {
    int a_magic;
    unsigned a_text;
    unsigned a_data;
    unsigned a_bss;
    unsigned a_syms;
    unsigned a_entry;
    unsigned a_trsize;
    unsigned a_drsize;
};
 
struct nlist {
    union {
        char const *n_name;
        long n_strx;
    } n_un;
    unsigned char n_type;
    char n_other;
    short n_desc;
    unsigned n_value;
};
 
struct relocation_info {
    int r_address;
    unsigned r_symbolnum:24,
            r_pcrel:1,
            r_length:2,
            r_extern:1,
            pad:4;
};
 
#endif /* !_AOUT_H */