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Re: [h8300] Add dwarf2 debugging support

From: DJ Delorie <dj at redhat dot com>
To: Richard Henderson <rth at redhat dot com>
Cc: gcc-patches at gcc dot gnu dot org
Date: Wed, 14 Oct 2009 14:01:45 -0400
Subject: Re: [h8300] Add dwarf2 debugging support
References: <200910132153.n9DLrmc4014436@greed.delorie.com> <4AD5031C.6020606@redhat.com> <200910140113.n9E1D1XF014452@greed.delorie.com> <4AD5FA26.6020705@redhat.com> <200910141653.n9EGrmT7029658@greed.delorie.com> <4AD60F1C.6060800@redhat.com>

> I have no idea.  Frankly, I don't know why an add/addx sequence against 
> the stack pointer isn't interrupt safe.

Because the first add leaves you with a $sp that may point inside a live stack.

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References:
- [h8300] Add dwarf2 debugging support
  - From: DJ Delorie
- Re: [h8300] Add dwarf2 debugging support
  - From: Richard Henderson
- Re: [h8300] Add dwarf2 debugging support
  - From: DJ Delorie
- Re: [h8300] Add dwarf2 debugging support
  - From: Richard Henderson
- Re: [h8300] Add dwarf2 debugging support
  - From: DJ Delorie
- Re: [h8300] Add dwarf2 debugging support
  - From: Richard Henderson

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