Reading the .eh_frame section

Example access to .eh_frame.

*/
int exampler(Dwarf_Debug dbg,Dwarf_Addr mypcval,Dwarf_Error *error)
{
    /*  Given a pc value
        for a function find the FDE and CIE data for
        the function.
        Example shows basic access to FDE/CIE plus
        one way to access details given a PC value.
        dwarf_get_fde_n() allows accessing all FDE/CIE
        data so one could build up an application-specific
        table of information if that is more useful.  */
    Dwarf_Cie   *cie_data = 0;
    Dwarf_Signed cie_count = 0;
    Dwarf_Fde   *fde_data = 0;
    Dwarf_Signed fde_count = 0;
    int          fres = 0;
 
    fres = dwarf_get_fde_list_eh(dbg,&cie_data,&cie_count,
        &fde_data,&fde_count,error);
    if (fres == DW_DLV_OK) {
        Dwarf_Fde myfde = 0;
        Dwarf_Addr low_pc = 0;
        Dwarf_Addr high_pc = 0;
 
        fres = dwarf_get_fde_at_pc(fde_data,mypcval,
            &myfde,&low_pc,&high_pc,
            error);
        if (fres == DW_DLV_OK) {
            Dwarf_Cie mycie = 0;
            fres = dwarf_get_cie_of_fde(myfde,&mycie,error);
            if (fres == DW_DLV_ERROR) {
                return fres;
            }
            if (fres == DW_DLV_OK) {
                /*  Now we can access a range of information
                    about the fde and cie applicable. */
            }
        }
        dwarf_dealloc_fde_cie_list(dbg, cie_data, cie_count,
            fde_data,fde_count);
        return fres;
    }
    return fres;
}