RELOC(4)                             SysV                             RELOC(4)



NAME
     reloc - relocation information for a common object file

SYNOPSIS
     #include  <reloc.h>

DESCRIPTION
     Object files have one relocation entry for each relocatable reference in
     the text or data.  If relocation information is present, it will be in
     the following format.

     struct   reloc
     {
              long      r_vaddr ;   /* (virtual) address of reference */
              long      r_symndx ;  /* index into symbol table */
              ushort    r_type ;    /* relocation type */
     } ;

     #define  R_ABS     0
     #define  R_DIR32   06
     #define  R_DIR32S  012


     As the link editor reads each input section and performs relocation, the
     relocation entries are read.  They direct how references found within the
     input section are treated.

     R_ABS             The reference is absolute and no relocation is
                       necessary.  The entry will be ignored.

     R_DIR32    A direct 32-bit reference to the symbol's virtual address.

     R_DIR32S   A direct 32-bit reference to the symbol's virtual address,
                with the 32-bit value stored in the reverse order in the
                object file.

     More relocation types exist for other processors.  Equivalent relocation
     types on different processors have equal values and meanings.  New
     relocation types will be defined (with new values) as they are needed.

     Relocation entries are generated automatically by the compiler and
     automatically used by the link editor.  Link editor options exist for
     both preserving and removing the relocation entries from object files.

SEE ALSO
     ld(1), a.out(4), syms(4).