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Annotation of researchv10no/cmd/kasb/scnhdr.h, revision 1.1.1.1

1.1       root        1: /*     @(#)scnhdr.h    2.2 12/15/82    */
                      2: 
                      3: struct scnhdr {
                      4:        char            s_name[8];      /* section name */
                      5:        long            s_paddr;        /* physical address */
                      6:        long            s_vaddr;        /* virtual address */
                      7:        long            s_size;         /* section size */
                      8:        long            s_scnptr;       /* file ptr to raw data for section */
                      9:        long            s_relptr;       /* file ptr to relocation */
                     10:        long            s_lnnoptr;      /* file ptr to line numbers */
                     11:        unsigned short  s_nreloc;       /* number of relocation entries */
                     12:        unsigned short  s_nlnno;        /* number of line number entries */
                     13:        long            s_flags;        /* flags */
                     14:        };
                     15: 
                     16: #define        SCNHDR  struct scnhdr
                     17: #define        SCNHSZ  sizeof(SCNHDR)
                     18: 
                     19: 
                     20: 
                     21: 
                     22: /*
                     23:  * Define constants for names of "special" sections
                     24:  */
                     25: 
                     26: #define _TEXT ".text"
                     27: #define _DATA ".data"
                     28: #define _BSS  ".bss"
                     29: #define _TV  ".tv"
                     30: 
                     31: 
                     32: 
                     33: 
                     34: /*
                     35:  * The low 4 bits of s_flags is used as a section "type"
                     36:  */
                     37: 
                     38: #define STYP_REG       0x00            /* "regular" section:
                     39:                                                allocated, relocated, loaded */
                     40: #define STYP_DSECT     0x01            /* "dummy" section:
                     41:                                                not allocated, relocated,
                     42:                                                not loaded */
                     43: #define STYP_NOLOAD    0x02            /* "noload" section:
                     44:                                                allocated, relocated,
                     45:                                                 not loaded */
                     46: #define STYP_GROUP     0x04            /* "grouped" section:
                     47:                                                formed of input sections */
                     48: #define STYP_PAD       0x08            /* "padding" section:
                     49:                                                not allocated, not relocated,
                     50:                                                 loaded */
                     51: #define STYP_COPY      0x10            /* "copy" section:
                     52:                                                for decision function used
                     53:                                                by field update;  not
                     54:                                                allocated, not relocated,
                     55:                                                loaded;  reloc & lineno
                     56:                                                entries processed normally */
                     57: #define        STYP_TEXT       0x20            /* section contains text only */
                     58: #define STYP_DATA      0x40            /* section contains data only */
                     59: #define STYP_BSS       0x80            /* section contains bss only */
                     60: 
                     61: /*
                     62:  *  In a minimal file or an update file, a new function
                     63:  *  (as compared with a replaced function) is indicated by S_NEWFCN
                     64:  */
                     65: 
                     66: #define S_NEWFCN  0x10
                     67: 
                     68: /*
                     69:  * In 3b Update Files (output of ogen), sections which appear in SHARED
                     70:  * segments of the Pfile will have the S_SHRSEG flag set by ogen, to inform
                     71:  * dufr that updating 1 copy of the proc. will update all process invocations.
                     72:  */
                     73: 
                     74: #define S_SHRSEG       0x20

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