[Sbcl-devel] [PATCH] sb-sprof and threads

[Zach B. <xa...@xa...>]

Attached is a patch that makes sb-sprof profile all threads that are alive
when SB-SPROF:START-PROFILING is called. Some of the thread
enumeration code is taken from slime's swank-sbcl.lisp.

It would be nice if sb-sprof could profile threads that are created
during a profile run. This patch doesn't do it, because I'm not sure
how to discover when a new thread is created so the signals can be set
up.

The patch also has an unrelated change to avoid a divide-by-zero error
if no samples were taken during profiling.

Zach