2 files changed, 31 insertions, 0 deletions
diff --git a/hsm-cam/Hsm/Cam/Lib.cpp b/hsm-cam/Hsm/Cam/Lib.cpp
new file mode 100644
index 0000000..5eda6d7
--- /dev/null
+++ b/hsm-cam/Hsm/Cam/Lib.cpp
@@ -0,0 +1,11 @@
+#include <string>
+
+#include "Lib_stub.h"
+
+void log_msg(const std::string &str) {
+    logMsg((HsPtr)str.c_str());
+}
+
+extern "C" void some_c_wrapper() {
+    log_msg("Hello from C++!");
+}
diff --git a/hsm-cam/Hsm/Cam/Lib.hsc b/hsm-cam/Hsm/Cam/Lib.hsc
new file mode 100644
index 0000000..4f6dadf
--- /dev/null
+++ b/hsm-cam/Hsm/Cam/Lib.hsc
@@ -0,0 +1,20 @@
+{-# LANGUAGE CPP #-}
+{-# LANGUAGE ForeignFunctionInterface #-}
+{-# LANGUAGE OverloadedStrings #-}
+
+module Hsm.Cam.Lib
+  ( someCWrapper
+  ) where
+
+import Control.Monad ((>=>))
+import Data.Text (pack)
+import Foreign.C.String (CString, peekCString)
+import Hsm.Log qualified as L
+
+foreign export ccall logMsg :: CString -> IO ()
+
+logMsg :: CString -> IO ()
+logMsg = peekCString >=> L.logMsg ["cam", "lib"] . pack
+
+foreign import ccall safe "Test.h some_c_wrapper"
+  someCWrapper :: IO ()