event: Add a script to decode the event-spy list

For debugging and dicoverability it is useful to be able to see a list of
each event spy in a U-Boot ELF file. Add a script which shows this, along
with the event type and the source location. This makes events a little
easier to use than weak functions, for example.

Add a basic sandbox test as well. We could provide a test for other
boards, but for now, few use events.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/test/py/tests/test_event_dump.py b/test/py/tests/test_event_dump.py
new file mode 100644
index 00000000000..b753e804ac3
--- /dev/null
+++ b/test/py/tests/test_event_dump.py
@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright 2021 Google LLC
+# Written by Simon Glass <sjg@chromium.org>
+
+import pytest
+import re
+import u_boot_utils as util
+
+# This is only a partial test - coverting 64-bit sandbox. It does not test
+# big-endian images, nor 32-bit images
+@pytest.mark.boardspec('sandbox')
+def test_event_dump(u_boot_console):
+    """Test that the "help" command can be executed."""
+    cons = u_boot_console
+    sandbox = cons.config.build_dir + '/u-boot'
+    out = util.run_and_log(cons, ['scripts/event_dump.py', sandbox])
+    expect = '''.*Event type            Id                              Source location
+--------------------  ------------------------------  ------------------------------
+EVT_MISC_INIT_F       sandbox_misc_init_f             .*arch/sandbox/cpu/start.c:'''
+    assert re.match(expect, out, re.MULTILINE) is not None