Create README.md

Author: fabbing

README.md

@@ -0,0 +1,44 @@
+# OCaml behind the scenes: exceptions
+
+Sources of the slides and examples of the tech talk given at Tarides, Paris, on 2022/11/18.
+
+Rendered slides are available in the [releases](https://github.com/fabbing/obts_exn/releases/).
+
+This talk is about understanding how OCaml exceptions are implemented in native code.
+What happens at the lowest level when an exception is raised and when it’s caught? OCaml exceptions are said to be particularly fast; how is it achieved?
+
+# Outline
+
+* Assembly
+  * x86-64 asssembly
+* Catching exceptions
+  * Exceptions are values
+  * Exception handlers
+  * Installing a trap
+  * Removing a trap
+  * Raise
+* Nested handlers
+  * Multiple handlers, multiple traps
+  * Raise and reraise
+* Bonus: Default handler
+  * Runtime's default exception handler
+
+# Building
+
+## Commands
+```sh
+make ocaml
+make sources
+make presentation
+```
+
+## Dependencies
+* pdflatex (packages: Beamer, Minted, TikZ, xstring, xint)
+* python pygments
+* rr, gdb
+* objdump
+* awk, sed
+* make
+
+## Build graph
+![build graph diagram](buildgraph.svg)