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Re: Re: Make GCC emit ASM instructions in 'gcc/except.c' for i686 MinGW targets ?

From: "lhmouse"<lh_mouse at 126 dot com>
To: "Jeff Law"<law at redhat dot com>, "gcc"<gcc at gcc dot gnu dot org>, "mingw-w64-public"<mingw-w64-public at lists dot sourceforge dot net>
Date: Mon, 17 Oct 2016 23:22:40 +0800
Subject: Re: Re: Make GCC emit ASM instructions in 'gcc/except.c' for i686 MinGW targets ?
Authentication-results: sourceware.org; auth=none
References: <3f304c1b.14ca35.157d0939593.Coremail.lh_mouse@126.com><3e4cd209-8b7c-e3c0-5764-4c97f6741091@redhat.com>

> I'd probably create a new exception handling model and conditionalize 
> whatever code you need based on that. 

That would require copy-n-paste of tons of code...
All this remains contingent on Microsoft's generosity because
they don't provide APIs for SEH on x86, unlike on x64.
So I have to reuse stack unwinding code from SJLJ at the moment.

> Emission of code for that new 
> exception model would likely require some amount of target specific code 
> called via target hooks.

Hooks... Er, are you talking about those global pointer-to-functions?
There are a lot, indeed.

------------------				 
Best regards,
lh_mouse
2016-10-17

References:
- Make GCC emit ASM instructions in 'gcc/except.c' for i686 MinGW targets ?
  - From: lhmouse
- Re: Make GCC emit ASM instructions in 'gcc/except.c' for i686 MinGW targets ?
  - From: Jeff Law

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