Completely disable exception support for G++ cross compiler

[Sebastian Huber]

Ingo Rohloff wrote:
> Hello,
> 
> I want to build a cross compiler for C and C++.
> 
> Host System is Windows Cygwin (1) and Linux (2) running on Intel x86.
> Target System is "PowerPC" bare metal
> (no operating system at all, so "EABI" ?)
> 
> Now if possible I would like to completely disable exception
> support for C and C++.
> That means:
> I do not want "new" to throw an exception.
> I do not want to get ".eh_frame" sections in my objects.
> I do not want to get any kind of stack unwind information in my object
> files (except in the debug sections).
> 
> Is there any possibility to achieve that ?

You can configure GCC with the following option:

--enable-cxx-flags='-fno-exceptions'

It was successful with an 4.5 GCC snapshot, 4.4 did not work for me.

The .eh_frames can be also related to
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40521

Have a nice day!

-- 
Sebastian Huber, embedded brains GmbH

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