[lldb] Push down the SWIG module to avoid an import cycle #166265
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This is a reland of llvm#129135 (by dingxiangfei2009) with Vladislav (dzhidzhoev) fix on top. Fixes llvm#92603
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@llvm/pr-subscribers-lldb Author: Jonas Devlieghere (JDevlieghere) ChangesThis is a reland of #129135 (by dingxiangfei2009) with Vladislav (dzhidzhoev) fix on top. Fixes #92603 Full diff: https://github.com/llvm/llvm-project/pull/166265.diff 3 Files Affected:
diff --git a/lldb/bindings/python/CMakeLists.txt b/lldb/bindings/python/CMakeLists.txt
index ef6def3f26872..de3ea7091ad1f 100644
--- a/lldb/bindings/python/CMakeLists.txt
+++ b/lldb/bindings/python/CMakeLists.txt
@@ -60,8 +60,10 @@ endfunction()
function(finish_swig_python swig_target lldb_python_bindings_dir lldb_python_target_dir)
# Add a Post-Build Event to copy over Python files and create the symlink to
# liblldb.so for the Python API(hardlink on Windows).
+ # Note that Swig-generated code is located one level deeper in the `native`
+ # module, in order to avoid cyclic importing.
add_custom_target(${swig_target} ALL VERBATIM
- COMMAND ${CMAKE_COMMAND} -E make_directory ${lldb_python_target_dir}
+ COMMAND ${CMAKE_COMMAND} -E make_directory ${lldb_python_target_dir}/native/
DEPENDS ${lldb_python_bindings_dir}/lldb.py
COMMENT "Python script sym-linking LLDB Python API")
@@ -75,6 +77,8 @@ function(finish_swig_python swig_target lldb_python_bindings_dir lldb_python_tar
"${LLDB_SOURCE_DIR}/source/Interpreter/embedded_interpreter.py"
"${lldb_python_target_dir}")
+ create_python_package(${swig_target} ${lldb_python_target_dir} "native" FILES)
+
# Distribute the examples as python packages.
create_python_package(
${swig_target}
@@ -142,7 +146,7 @@ function(finish_swig_python swig_target lldb_python_bindings_dir lldb_python_tar
endif()
set(LIBLLDB_SYMLINK_OUTPUT_FILE "_lldb${LLDB_PYTHON_EXT_SUFFIX}")
create_relative_symlink(${swig_target} ${LIBLLDB_SYMLINK_DEST}
- ${lldb_python_target_dir} ${LIBLLDB_SYMLINK_OUTPUT_FILE})
+ ${lldb_python_target_dir}/native/ ${LIBLLDB_SYMLINK_OUTPUT_FILE})
if (NOT WIN32)
diff --git a/lldb/bindings/python/python.swig b/lldb/bindings/python/python.swig
index 4a5a39dc4b06d..155e1c64fb103 100644
--- a/lldb/bindings/python/python.swig
+++ b/lldb/bindings/python/python.swig
@@ -50,7 +50,12 @@ Older swig versions will simply ignore this setting.
import $module
except ImportError:
# Relative import should work if we are being loaded by Python.
- from . import $module"
+ # The cpython module built by swig is pushed one level down into
+ # the native submodule, because at this point the interpreter
+ # is still constructing the lldb module itself.
+ # Simply importing anything using `from . import` constitutes
+ # a cyclic importing.
+ from .native import $module"
%enddef
// The name of the module to be created.
diff --git a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
index d257a08a2c62c..5e4c39cb2886c 100644
--- a/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
+++ b/lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp
@@ -272,6 +272,7 @@ void ScriptInterpreterPython::SharedLibraryDirectoryHelper(
// does.
if (this_file.GetFileNameExtension() == ".pyd") {
this_file.RemoveLastPathComponent(); // _lldb.pyd or _lldb_d.pyd
+ this_file.RemoveLastPathComponent(); // native
this_file.RemoveLastPathComponent(); // lldb
llvm::StringRef libdir = LLDB_PYTHON_RELATIVE_LIBDIR;
for (auto it = llvm::sys::path::begin(libdir),
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JDevlieghere
changed the title
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Let's see if this sticks :-) |
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Nice! |
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LLVM Buildbot has detected a new failure on builder Full details are available at: https://lab.llvm.org/buildbot/#/builders/18/builds/22746 Here is the relevant piece of the build log for the reference |
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This is a reland of #129135 (by dingxiangfei2009) with Vladislav (dzhidzhoev) fix on top.
Fixes #92603