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+---
+title: Debugging binder and bindings
+---
+
+When compiled with the symbol AGL_DEVEL defined, the ***binder***
+understands the 2 configuration variables:
+
+ - AFB_DEBUG_BREAK: to emit interrupts
+ - AFB_DEBUG_WAIT: to wait interrupts
+
+To use these variables, assign it the list of break or wait points
+to reach.
+
+Example:
+
+```bash
+$ AFB_DEBUG_BREAK=main-entry AFB_DEBUG_WAIT=start-load,start-exec afb-daemon ....
+```
+
+This tells to ***afb-daemon*** to break at the point **main-entry** and to
+wait at the points **start-load** and **start-exec**.
+
+The items of the list can be separated using comma, space, tab or new-line.
+
+The break/wait points are, in the order of their occurrence:
+
+- main-entry: before decode arguments
+- main-args: before daemon setup
+- main-start: before starting jobs
+- start-entry: before initialisation of sessions and hooks
+- start-load: before load and pre-init of bindings
+- start-start: before init of bindings
+- start-http: before start of http server
+- start-call: before execution of requests of the command line (option --call)
+- start-exec: before execution of child preocees
+
+Note also that a call to 'personality' is inserted just after
+the point start-start.
+\ No newline at end of file