path: root/scripts
diff options
authorKieran Bingham <>2016-05-23 16:24:48 -0700
committerLinus Torvalds <>2016-05-23 17:04:14 -0700
commite78f3d70b3f5b045173961cb9cda16d005ecafa7 (patch)
treea4f3a6a17010c31e4d879db207e527976c05615a /scripts
parent619ccaf3e94958485fd237000c24e06bce686bd2 (diff)
scripts/gdb: provide exception catching parser
If we attempt to read a value that is not available to GDB, an exception is raised. Most of the time, this is a good thing; however on occasion we will want to be able to determine if a symbol is available. By catching the exception to simply return None, we can determine if we tried to read an invalid value, without the exception taking our execution context away from us Link: Signed-off-by: Kieran Bingham <> Signed-off-by: Jan Kiszka <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'scripts')
1 files changed, 7 insertions, 0 deletions
diff --git a/scripts/gdb/linux/ b/scripts/gdb/linux/
index 0893b326a28b..dbe2ad78048c 100644
--- a/scripts/gdb/linux/
+++ b/scripts/gdb/linux/
@@ -154,3 +154,10 @@ def get_gdbserver_type():
if gdbserver_type is not None and hasattr(gdb, 'events'):
return gdbserver_type
+def gdb_eval_or_none(expresssion):
+ try:
+ return gdb.parse_and_eval(expresssion)
+ except:
+ return None