Types table size and format in the .gcc_exception_table

[alam_shahid]

As part of my research I am updating the .gcc_exception_table of a binary 64 
bit elf file. For small C++ programs that throw exceptions it works OK, but for 
large benchmark programs it's not working. My question is does GCC stores more 
than one table inside the .gcc_exception_table section of the elf file. If it 
does what's the exact format of these tables. I have some knowledge of the 
action table, action records and types table. I am not clear about the size of 
the types table.

I am parsing the tables in this section but is not able to know the exact size 
and format of the types tables, where a pointer to the exception information is 
stored. I need to update this pointer to the new updated location.

Any help is appreciated.
Thanks,
-- Shahid