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Annotation of 43BSD/ucb/lisp/franz/h/dualaout.h, revision 1.1.1.1

1.1       root        1:                /*      %M%     %I%     %E%     */
                      2: /*
                      3:  * Header prepended to each a.out file.
                      4:  */
                      5: struct exec {
                      6:        long    a_magic;        /* magic number */
                      7: unsigned long  a_text;         /* size of text segment */
                      8: unsigned long  a_data;         /* size of initialized data */
                      9: unsigned long  a_bss;          /* size of uninitialized data */
                     10: unsigned long  a_syms;         /* size of symbol table */
                     11: unsigned long  a_trsize;       /* size of text relocation */
                     12: unsigned long  a_drsize;       /* size of data relocation */
                     13: unsigned long  a_entry;        /* entry point */
                     14: };
                     15: 
                     16: #define        OMAGIC  0407            /* old impure format */
                     17: #define        NMAGIC  0410            /* read-only text */
                     18: #define        ZMAGIC  0413            /* demand load format */
                     19: 
                     20: /*
                     21:  * Macros which take exec structures as arguments and tell whether
                     22:  * the file has a reasonable magic number or offsets to text|symbols|strings.
                     23:  */
                     24: #define        N_BADMAG(x) \
                     25:     (((x).a_magic)!=OMAGIC && ((x).a_magic)!=NMAGIC && ((x).a_magic)!=ZMAGIC)
                     26: 
                     27: #define        N_TXTOFF(x) \
                     28:        ((x).a_magic==ZMAGIC ? 1024 : sizeof (struct exec))
                     29: #define N_SYMOFF(x) \
                     30:        (N_TXTOFF(x) + (x).a_text+(x).a_data + (x).a_trsize+(x).a_drsize)
                     31: #include <a.out.h>

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