[Lldb-commits] [PATCH] D98368: [lldb] Ignore linkage diagnostic for LLDBSwigPythonBreakpointCallbackFunction (NFC)

Dave Lee via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Wed Mar 10 12:51:48 PST 2021

kastiglione created this revision.
kastiglione added a reviewer: JDevlieghere.
kastiglione requested review of this revision.
Herald added a project: LLDB.
Herald added a subscriber: lldb-commits.

Ignore `-Wreturn-type-c-linkage` diagnostics for `LLDBSwigPythonBreakpointCallbackFunction`.

The function is defined in `python-wrapper.swig` which uses `extern "C" { ... }` blocks.
The declaration of this function in `ScriptInterpreterPython.cpp` already uses these
same pragmas to silence the warning there.

This prevents `-Werror` builds from failing.

  rG LLVM Github Monorepo



Index: lldb/bindings/python/python-wrapper.swig
--- lldb/bindings/python/python-wrapper.swig
+++ lldb/bindings/python/python-wrapper.swig
@@ -39,6 +39,17 @@
 // This function is called by lldb_private::ScriptInterpreterPython::BreakpointCallbackFunction(...)
 // and is used when a script command is attached to a breakpoint for execution.
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wreturn-type-c-linkage"
+// Disable warning C4190: 'LLDBSwigPythonBreakpointCallbackFunction' has
+// C-linkage specified, but returns UDT 'llvm::Expected<bool>' which is
+// incompatible with C
+#if _MSC_VER
+#pragma warning (push)
+#pragma warning (disable : 4190)
 SWIGEXPORT llvm::Expected<bool>
@@ -85,6 +96,12 @@
     return result.get().get() != Py_False;
+#if _MSC_VER
+#pragma warning (pop)
+#pragma clang diagnostic pop
 // This function is called by lldb_private::ScriptInterpreterPython::WatchpointCallbackFunction(...)
 // and is used when a script command is attached to a watchpoint for execution.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D98368.329744.patch
Type: text/x-patch
Size: 1166 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/lldb-commits/attachments/20210310/9bb30993/attachment.bin>

More information about the lldb-commits mailing list