On Wed, 31 Aug 2011 16:40:02 -0400, Robert Clipsham
<rob...@octarineparrot.com> wrote:
On 31/08/2011 21:19, Steven Schveighoffer wrote:
It's also possible for the program to have its own seg fault handler
that reads its own symbolic debug info and generates a line number and
stack trace. There was a patch to Phobos that did this a while back.
This would also be a valid option. I have no idea why that wasn't
included. Do you?
It's not easy to catch SIGSEGV on linux, there's a library that'll do it
but it's GPL (iirc), an equivalent would need writing from scratch if it
were to be included in druntime/phobos.
You can catch sigsegv on linux. It takes one call to signal to register a
handler.
The difficult part is unwinding the stack. You can't throw an exception
from a signal handler (or reliably do it anyways).
Also, the stack may be in some other language (e.g. C).
But I do remember the patch and discussion, I thought all these problems
were solved, no? Why wasn't this adopted?
-Steve
