[M3devel] alloca/jmpbuf

[Jay K]

ok -- putting back the old jmpbuf allocation does fix the problem on caltech-parser/parserlib/parserlib/test NT386.
I had to do the undo very manually because git was confusing.

Anyone have any idea of the exact problem?

Otherwise I'll try to figure it out but it'll take a while.

Maybe we have really good focused exception handling tests? I"ll look in m3tests.

Thank you,
 - Jay


----------------------------------------
> From: jay.krell at cornell.edu
> To: m3devel at elegosoft.com
> Subject: alloca/jmpbuf
> Date: Fri, 1 Jan 2016 06:21:27 +0000
>
> NT386 has some failure in the caltech-parser/parserlib/parserlib/test directory.
>
>
> I propose the following:
> Bring back the jmpbuf-size-known-by-frontend code, but with some "sprinkled conditions":
>
>
> Target.Alloca_jmpbuf: BOOLEAN in the compiler
> and something in the runtime, like RTExFrame.Alloca_jmpbuf:BOOLEAN.
>
>
> If this is/was/meant to be an option that lasted a while, then it'd also be a bit in RT0, so the runtime would make a runtime decision "informed by" the compiler.
>
> However this is really just hopefully just an experiment, and anyone switching the value would switch it in both places.
>
>
> It really can't be in only one place, though one could communicate it to the other -- such is the dependency/independency between the compiler and runtime.
>
>
> I tried to do a "git revert" and then edit, but git continues to elude me, so I'm going to do something more manual.
>
> Ok?
>
> Alternatives:
> 1) Just debug the current state.
> Esp. comparing MacOSX (which works) with NT386
>
> 2) Construct all I've said but don't commit it.
>
>
> - Jay