Reading the gdbindex symbol table

Example accessing gdbindex symbol table data.

*/
int examplex(Dwarf_Gdbindex gdbindex,Dwarf_Error*error)
{
    Dwarf_Unsigned symtab_list_length = 0;
    Dwarf_Unsigned i = 0;
    int            res = 0;
 
    res = dwarf_gdbindex_symboltable_array(gdbindex,
        &symtab_list_length,error);
    if (res != DW_DLV_OK) {
        return res;
    }
    for (i  = 0; i < symtab_list_length; i++) {
        Dwarf_Unsigned symnameoffset = 0;
        Dwarf_Unsigned cuvecoffset = 0;
        Dwarf_Unsigned cuvec_len = 0;
        Dwarf_Unsigned ii = 0;
        const char *name = 0;
        int resl = 0;
 
        resl = dwarf_gdbindex_symboltable_entry(gdbindex,i,
            &symnameoffset,&cuvecoffset,
            error);
        if (resl != DW_DLV_OK) {
            return resl;
        }
        resl = dwarf_gdbindex_string_by_offset(gdbindex,
            symnameoffset,&name,error);
        if (resl != DW_DLV_OK) {
            return resl;
        }
        resl = dwarf_gdbindex_cuvector_length(gdbindex,
            cuvecoffset,&cuvec_len,error);
        if (resl != DW_DLV_OK) {
            return resl;
        }
        for (ii = 0; ii < cuvec_len; ++ii ) {
            Dwarf_Unsigned attributes = 0;
            Dwarf_Unsigned cu_index = 0;
            Dwarf_Unsigned symbol_kind = 0;
            Dwarf_Unsigned is_static = 0;
            int res2 = 0;
 
            res2 = dwarf_gdbindex_cuvector_inner_attributes(
                gdbindex,cuvecoffset,ii,
                &attributes,error);
            if (res2 != DW_DLV_OK) {
                return res2;
            }
            /*  'attributes' is a value with various internal
                fields so we expand the fields. */
            res2 = dwarf_gdbindex_cuvector_instance_expand_value(
                gdbindex, attributes, &cu_index,
                &symbol_kind, &is_static,
                error);
            if (res2 != DW_DLV_OK) {
                return res2;
            }
            /* Do something with the attributes. */
        }
    }
    return DW_DLV_OK;
}