The document discusses debugging tools for Smalltalk systems, including using system-level tools like GDB and rr to debug issues, recording and replaying debugging sessions with the Smalltalk command line options, and links to resources for Bee Smalltalk, the jv-vdb debugger, and other Smalltalk debugging projects.

1. Using system-level tools
to debug smalltalk systems
Bee Smalltalk is now open source!
https://github.com/bee-smalltalk/bee64
Jan Vraný

3. > nano issue_200.txt
> smalltalk --record
--abortOnSIGSEGV
--execute issue_200.st
> smalltalk --replay --vdb

4. GDB
rr

5. https://www.gnu.org/software/gdb/
https://bitbucket.org/janvrany/jv-vdb/src/default/
/Smalltalkjv-branch
https://swing.fit.cvut.cz/projects/stx-jv