dwarf_begin_elf() won't create handle without .debug_* sections

[Sasha Da Rocha Pinheiro <darochapinhe@wisc.edu>]

Hi all, 

I have some binaries that do not have .debug_* sections but have .eh_frame and .gcc_except_table.
Looking at:
    https://sourceware.org/git/?p=elfutils.git;a=blob;f=libdw/dwarf_begin_elf.c;hb=144b73c49acf3ed894e4635aedb9b0d1208ade2e#l50
it seems that dwarf_begin_elf() will not create a Dwarf handle for this file. Am I correct?

So, the functions 
    dwarf_cfi_addrframe, 
    dwarf_frame_info, 
    dwarf_frame_cfa, and
    dwarf_frame_register
will get info from .debug_frame while dwarf_next_cfi can get info either from .debug_frame or .gcc_except_table, but without some abstractions?

Since
    /* Opaque type representing a CFI section found in a DWARF or ELF file.  */
    typedef struct Dwarf_CFI_s Dwarf_CFI;
can we say Dwarf_CFI is only about .debug_frame? Even though dwarf_next_cfi uses Dwarf_CFI_Entry but not Dwarf_CFI?

I know .eh_frame has slightly different format from .debug_frame, and it's not defined by the DWARF specification but LSB, so is it the reason why this is kinda confusing?

Regards,
Sasha