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* [PATCH] gdb/testsuite: check the python module is available before using it
@ 2021-11-29 15:19 Andrew Burgess
  2021-11-30 12:43 ` Simon Marchi
  0 siblings, 1 reply; 3+ messages in thread
From: Andrew Burgess @ 2021-11-29 15:19 UTC (permalink / raw)
  To: gdb-patches; +Cc: Andrew Burgess

The gdb.python/py-inferior-leak.exp test makes use of the tracemalloc
module.  When running the Python tests with a GDB built against Python
2 I ran into a test failure due to the tracemalloc module not being
available.

This commit adds a new helper function to lib/gdb-python.exp that
checks if a named module is available.  Using this we can then skip
the py-inferior-leak.exp test when the tracemalloc module is not
available.
---
 gdb/testsuite/gdb.python/py-inferior-leak.exp |  6 +++++
 gdb/testsuite/lib/gdb-python.exp              | 25 +++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/gdb/testsuite/gdb.python/py-inferior-leak.exp b/gdb/testsuite/gdb.python/py-inferior-leak.exp
index 9cd1ebf2433..15d742391de 100644
--- a/gdb/testsuite/gdb.python/py-inferior-leak.exp
+++ b/gdb/testsuite/gdb.python/py-inferior-leak.exp
@@ -25,6 +25,12 @@ clean_restart
 # Skip all tests if Python scripting is not enabled.
 if { [skip_python_tests] } { continue }
 
+# Skip this test if the tracemalloc module is not available.
+if { ![gdb_py_module_available "tracemalloc"] } {
+    unsupported "tracemalloc module not available"
+    continue
+}
+
 set pyfile [gdb_remote_download host ${srcdir}/${subdir}/${testfile}.py]
 
 # Source the Python script, this runs the test (which is written
diff --git a/gdb/testsuite/lib/gdb-python.exp b/gdb/testsuite/lib/gdb-python.exp
index 13a1ab517f1..60931fec28a 100644
--- a/gdb/testsuite/lib/gdb-python.exp
+++ b/gdb/testsuite/lib/gdb-python.exp
@@ -51,3 +51,28 @@ proc get_python_valueof { exp default {test ""} } {
     }
     return ${val}
 }
+
+# Return true if Python module NAME is available, otherwise, return
+# false.
+
+proc gdb_py_module_available { name } {
+    set available "unknown"
+    gdb_test_multiple "python import ${name}" "" {
+	-re -wrap "ModuleNotFoundError: No module named '${name}'.*" {
+	    set available false
+	}
+	-re -wrap "ImportError: No module named ${name}.*" {
+	    set available false
+	}
+	-re -wrap "python import ${name}" {
+	    set available true
+	}
+    }
+
+    if { $available == "unknown" } {
+	perror "unexpected output from python import"
+	set available false
+    }
+
+    return ${available}
+}
-- 
2.25.4


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-11-30 14:56 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2021-11-29 15:19 [PATCH] gdb/testsuite: check the python module is available before using it Andrew Burgess
2021-11-30 12:43 ` Simon Marchi
2021-11-30 14:56   ` Andrew Burgess

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