Tests: fix: list_triggers_cli: kallsyms contains prefixed symbols

The test_list_triggers_cli test fails with:

  # Listing event-rule-matches kernel probe
  ./tests/regression/tools/trigger/test_list_triggers_cli: line 808: [[: 0xffffffffc1fca020
  ffffffffc1fca030: syntax error in expression (error token is "ffffffffc1fca030")
  ./tests/regression/tools/trigger/test_list_triggers_cli: line 813: 0xffffffffc1fca020
  ffffffffc1fca030 - 0xffffffffc1fca0c0
  ffffffffc1fca0b0 : syntax error in expression (error token is "ffffffffc1fca030 - 0xffffffffc1fca0c0
  ffffffffc1fca0b0 ")

This is due to the fact that /proc/kallsyms now contains prefixed
symbols (e.g. `__pfx_lttng_channel_enable`) which cause the test to fail
since the grep invocation doesn't expect more than one match.

Matching the begin/end of the "word" (or rather, function name) allows
us to check for exact matches only.

https://github.com/torvalds/linux/commit/9f2899fe36a623885d8576604cb582328ad32b3c

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Change-Id: Ifc04757719c733caf55c8eea447e18a2246a9f49

diff --git a/tests/regression/tools/trigger/test_list_triggers_cli b/tests/regression/tools/trigger/test_list_triggers_cli
index a040180138bac02f356bcdae687dc1b826250722..2574e1519b41e0312ac202533b208056edb9d8ab 100755 (executable)
--- a/tests/regression/tools/trigger/test_list_triggers_cli
+++ b/tests/regression/tools/trigger/test_list_triggers_cli
@@ -799,8 +799,8 @@ test_event_rule_matches_probe ()
 
        diag "Listing event-rule-matches kernel probe"
 
-       channel_enable_addr=$(grep 'lttng_channel_enable' /proc/kallsyms | cut -f 1 -d ' ')
-       channel_disable_addr=$(grep 'lttng_channel_disable' /proc/kallsyms | cut -f 1 -d ' ')
+       channel_enable_addr=$(grep '\<lttng_channel_enable\>' /proc/kallsyms | cut -f 1 -d ' ')
+       channel_disable_addr=$(grep '\<lttng_channel_disable\>' /proc/kallsyms | cut -f 1 -d ' ')
 
        # We need to find a valid offset.
        base_symbol=""