Updated: 2022/Sep/29

Please read Privacy Policy. It's for your privacy.

DWARF_ADD_EXPR_ADDR(3)     Library Functions Manual     DWARF_ADD_EXPR_ADDR(3)

NAME
     dwarf_add_expr_addr, dwarf_add_expr_addr_b - add a DW_OP_addr location
     expression

LIBRARY
     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS
     #include <libdwarf.h>

     Dwarf_Unsigned
     dwarf_add_expr_addr(Dwarf_P_Expr expr, Dwarf_Unsigned address,
         Dwarf_Signed sym_index, Dwarf_Error *err);

     Dwarf_Unsigned
     dwarf_add_expr_addr_b(Dwarf_P_Expr expr, Dwarf_Unsigned address,
         Dwarf_Unsigned sym_index, Dwarf_Error *err);

DESCRIPTION
     Function dwarf_add_expr_addr_b() adds a DW_OP_addr location expression to
     the location expression descriptor referenced by argument expr.

     Argument expr should reference a location expression descriptor allocated
     using the function dwarf_new_expr(3).

     Argument address specifies the operand, a relocatable address value.

     Argument sym_index specifies the ELF symbol index of the symbol to be
     used for relocation.

     If argument err is not NULL, it will be used to store error information
     in case of an error.

     Function dwarf_add_expr_addr() is deprecated.  It is similar to function
     dwarf_add_expr_addr_b() except that it cannot handle all possible symbol
     index values.

RETURN VALUES
     On success, these functions return the size in bytes of the location
     expression byte stream generated.  In case of an error, these functions
     return DW_DLV_NOCOUNT and set the argument err.

ERRORS
     These functions can fail with:

     [DW_DLE_ARGUMENT]       Argument expr was NULL.

     [DW_DLE_MEMORY]         An out of memory condition was encountered during
                             the execution of the function.

SEE ALSO
     dwarf(3), dwarf_add_AT_location_expr(3), dwarf_add_expr_gen(3),
     dwarf_expr_current_offset(3), dwarf_expr_into_block(3), dwarf_new_expr(3)

NetBSD 10.99                   September 9, 2011                  NetBSD 10.99