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authorPhuong Trinh <lolotp@fb.com>2019-03-05 15:48:46 +0000
committerMarge Bot <ben+marge-bot@smart-cactus.org>2019-03-07 14:01:42 -0500
commit7a68254a7284db5bf8f1fa82aba4a6825d8f050a (patch)
treef5c7e7a51f305514376f4ff09b63465b93621e96 /ghc
parent25c3dd39f7d446f66b5c967be81f80cd7facb509 (diff)
downloadhaskell-7a68254a7284db5bf8f1fa82aba4a6825d8f050a.tar.gz
Fix #16392: revertCAFs in external interpreter when necessary
We revert CAFs when loading/adding modules in ghci (presumably to refresh execution states and to allow for object code to be unloaded from the runtime). However, with `-fexternal-interpreter` enabled, we are only doing it in the ghci process instead of the external interpreter process where the cafs are allocated and computed. This makes sure that revertCAFs is done in the appropriate process no matter if that flag is present or not.
Diffstat (limited to 'ghc')
-rw-r--r--ghc/GHCi/UI/Monad.hs5
1 files changed, 2 insertions, 3 deletions
diff --git a/ghc/GHCi/UI/Monad.hs b/ghc/GHCi/UI/Monad.hs
index 51f13663ea..fb887275d7 100644
--- a/ghc/GHCi/UI/Monad.hs
+++ b/ghc/GHCi/UI/Monad.hs
@@ -456,14 +456,13 @@ printStats dflags ActionStats{actionAllocs = mallocs, actionElapsedTime = secs}
revertCAFs :: GhciMonad m => m ()
revertCAFs = do
- liftIO rts_revertCAFs
+ hsc_env <- GHC.getSession
+ liftIO $ iservCmd hsc_env RtsRevertCAFs
s <- getGHCiState
when (not (ghc_e s)) turnOffBuffering
-- Have to turn off buffering again, because we just
-- reverted stdout, stderr & stdin to their defaults.
-foreign import ccall "revertCAFs" rts_revertCAFs :: IO ()
- -- Make it "safe", just in case
-----------------------------------------------------------------------------
-- To flush buffers for the *interpreted* computation we need