event: Add basic support for events
Add a way to create and dispatch events without needing to allocate
memory. Also add a way to 'spy' on events, thus allowing 'hooks' to be
created.
Use a linker list for static events, which we can use to replace functions
like arch_cpu_init_f(). Allow an EVENT_DEBUG option which makes it
easier to see what is going on at runtime, but uses more code space.
Dynamic events allow the creation of a spy at runtime. This is not always
necessary, but can be enabled with EVENT_DYNAMIC if needed.
A 'test' event is the only option for now.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index fb171e0..b534ad6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -809,6 +809,12 @@
F: doc/usage/environment.rst
F: scripts/env2string.awk
+EVENTS
+M: Simon Glass <sjg@chromium.org>
+S: Maintained
+F: common/event.c
+F: include/event.h
+
FASTBOOT
S: Orphaned
F: cmd/fastboot.c