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Re: GNAT, SJLJ and zero-cost exception handling

From: Ludovic Brenta <ludovic at ludovic-brenta dot org>
To: Eric Botcazou <ebotcazou at adacore dot com>
Cc: Ludovic Brenta <ludovic at ludovic-brenta dot org>, gcc at gcc dot gnu dot org
Date: Sat, 14 Oct 2006 14:30:16 +0200
Subject: Re: GNAT, SJLJ and zero-cost exception handling
References: <20061013124429.GO17837@green.ada-france.org> <200610132241.20178.ebotcazou@adacore.com>

Eric Botcazou writes:
> You need GCC 3.x or GCC 4.2 for GNAT SJLJ exceptions to work.

Do you mean that it does not work with GCC 4.1.1? That would be very
bad news.

>> From [2] it looks like this is a configure-time option only.
>
> [2] describes GCC SJLJ, which is not the same as GNAT SJLJ.

How different?  I was somehow suspecting that gnat1 supports both ZCX
and SJLJ, looks in system.ads, and decides what kind of assembly code
it needs to emit based on that.  Am I correct?  In that case, I need
just one compiler and two libgnats, right?

Thanks for the input!

-- 
Ludovic Brenta.

Follow-Ups:
- Re: GNAT, SJLJ and zero-cost exception handling
  - From: Eric Botcazou
- Re: GNAT, SJLJ and zero-cost exception handling
  - From: Rolf Ebert

References:
- GNAT, SJLJ and zero-cost exception handling
  - From: Ludovic Brenta
- Re: GNAT, SJLJ and zero-cost exception handling
  - From: Eric Botcazou

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