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[ghc-base.git]
/
Debug
/
Trace.hs
diff --git
a/Debug/Trace.hs
b/Debug/Trace.hs
index
accf247
..
742044e
100644
(file)
--- a/
Debug/Trace.hs
+++ b/
Debug/Trace.hs
@@
-13,9
+13,10
@@
-----------------------------------------------------------------------------
module Debug.Trace (
-----------------------------------------------------------------------------
module Debug.Trace (
- -- * Tracing
- putTraceMsg, -- :: String -> IO ()
- trace -- :: String -> a -> a
+ -- * Tracing
+ putTraceMsg, -- :: String -> IO ()
+ trace, -- :: String -> a -> a
+ traceShow
) where
import Prelude
) where
import Prelude
@@
-40,7
+41,9
@@
putTraceMsg msg = do
withCString msg $ \cmsg ->
debugBelch cfmt cmsg
withCString msg $ \cmsg ->
debugBelch cfmt cmsg
-foreign import ccall unsafe "RtsMessages.h debugBelch"
+-- don't use debugBelch() directly, because we cannot call varargs functions
+-- using the FFI.
+foreign import ccall unsafe "HsBase.h debugBelch2"
debugBelch :: CString -> CString -> IO ()
#endif
debugBelch :: CString -> CString -> IO ()
#endif