Types table size and format in the .gcc_exception_table

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Article #1120

#1120

From: alam_shahid
Date: Fri, 04 Jan 2013 14:46

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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

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Subject: Types table size and format in the .gcc_exception_table
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