[Lldb-commits] [lldb] f758859 - Fix error reporting for "process load" and add a test for it.
Jim Ingham via lldb-commits
lldb-commits at lists.llvm.org
Tue Dec 7 15:08:13 PST 2021
Author: Jim Ingham
Date: 2021-12-07T15:08:05-08:00
New Revision: f75885977cefe4d5ebbe51f85b353bb9989dd777
URL: https://github.com/llvm/llvm-project/commit/f75885977cefe4d5ebbe51f85b353bb9989dd777
DIFF: https://github.com/llvm/llvm-project/commit/f75885977cefe4d5ebbe51f85b353bb9989dd777.diff
LOG: Fix error reporting for "process load" and add a test for it.
Differential Revision: https://reviews.llvm.org/D115017
Added:
Modified:
lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
lldb/test/API/functionalities/load_unload/TestLoadUnload.py
lldb/test/API/functionalities/load_using_paths/TestLoadUsingPaths.py
Removed:
################################################################################
diff --git a/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp b/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
index 719109c863e7a..1d989b268b74d 100644
--- a/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
+++ b/lldb/source/Plugins/Platform/POSIX/PlatformPOSIX.cpp
@@ -589,6 +589,8 @@ PlatformPOSIX::MakeLoadImageUtilityFunction(ExecutionContext &exe_ctx,
result_ptr->image_ptr = dlopen(name, RTLD_LAZY);
if (result_ptr->image_ptr)
result_ptr->error_str = nullptr;
+ else
+ result_ptr->error_str = dlerror();
return nullptr;
}
diff --git a/lldb/test/API/functionalities/load_unload/TestLoadUnload.py b/lldb/test/API/functionalities/load_unload/TestLoadUnload.py
index 9f4a99dc69de5..f3b715c4c35ed 100644
--- a/lldb/test/API/functionalities/load_unload/TestLoadUnload.py
+++ b/lldb/test/API/functionalities/load_unload/TestLoadUnload.py
@@ -240,6 +240,15 @@ def run_lldb_process_load_and_unload_commands(self):
else:
remoteDylibPath = localDylibPath
+ # First make sure that we get some kind of error if process load fails.
+ # We print some error even if the load fails, which isn't formalized.
+ # The only plugin at present (Posix) that supports this says "unknown reasons".
+ # If another plugin shows up, let's require it uses "unknown error" as well.
+ non_existant_shlib = "/NoSuchDir/NoSuchSubdir/ReallyNo/NotAFile"
+ self.expect("process load %s"%(non_existant_shlib), error=True, matching=False,
+ patterns=["unknown reasons"])
+
+
# Make sure that a_function does not exist at this point.
self.expect(
"image lookup -n a_function",
diff --git a/lldb/test/API/functionalities/load_using_paths/TestLoadUsingPaths.py b/lldb/test/API/functionalities/load_using_paths/TestLoadUsingPaths.py
index cfa55c4055a56..ca7808c212795 100644
--- a/lldb/test/API/functionalities/load_using_paths/TestLoadUsingPaths.py
+++ b/lldb/test/API/functionalities/load_using_paths/TestLoadUsingPaths.py
@@ -65,7 +65,12 @@ def test_load_using_paths(self):
# First try with no correct directories on the path, and make sure that doesn't blow up:
token = process.LoadImageUsingPaths(lib_spec, paths, out_spec, error)
self.assertEqual(token, lldb.LLDB_INVALID_IMAGE_TOKEN, "Only looked on the provided path.")
-
+ # Make sure we got some error back in this case. Since we don't actually know what
+ # the error will look like, let's look for the absence of "unknown reasons".
+ error_str = error.description
+ self.assertNotEqual(len(error_str), 0, "Got an empty error string")
+ self.assertNotIn("unknown reasons", error_str, "Error string had unknown reasons")
+
# Now add the correct dir to the paths list and try again:
paths.AppendString(self.hidden_dir)
token = process.LoadImageUsingPaths(lib_spec, paths, out_spec, error)
@@ -121,8 +126,6 @@ def test_load_using_paths(self):
process.UnloadImage(token)
-
-
# Finally, passing in an absolute path should work like the basename:
# This should NOT work because we've taken hidden_dir off the paths:
abs_spec = lldb.SBFileSpec(os.path.join(self.hidden_dir, self.lib_name))
@@ -137,5 +140,3 @@ def test_load_using_paths(self):
self.assertNotEqual(token, lldb.LLDB_INVALID_IMAGE_TOKEN, "Got a valid token")
self.assertEqual(out_spec, lldb.SBFileSpec(self.hidden_lib), "Found the expected library")
-
-
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