diff options
Diffstat (limited to 'ghc/Main.hs')
| -rw-r--r-- | ghc/Main.hs | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/ghc/Main.hs b/ghc/Main.hs index 2db9a99005..b9b1265f1e 100644 --- a/ghc/Main.hs +++ b/ghc/Main.hs @@ -102,7 +102,6 @@ import Prelude main :: IO () main = do - initGCStatistics -- See Note [-Bsymbolic and hooks] hSetBuffering stdout LineBuffering hSetBuffering stderr LineBuffering @@ -917,26 +916,3 @@ unknownFlagsErr fs = throwGhcException $ UsageError $ concatMap oneError fs fName = takeWhile (/= '=') f in (fuzzyMatch f flagsWithEq) ++ (fuzzyMatch fName flagsWithoutEq) | otherwise = fuzzyMatch f allFlags - -{- Note [-Bsymbolic and hooks] -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ --Bsymbolic is a flag that prevents the binding of references to global -symbols to symbols outside the shared library being compiled (see `man -ld`). When dynamically linking, we don't use -Bsymbolic on the RTS -package: that is because we want hooks to be overridden by the user, -we don't want to constrain them to the RTS package. - -Unfortunately this seems to have broken somehow on OS X: as a result, -defaultHooks (in hschooks.c) is not called, which does not initialize -the GC stats. As a result, this breaks things like `:set +s` in GHCi -(#8754). As a hacky workaround, we instead call 'defaultHooks' -directly to initialize the flags in the RTS. - -A byproduct of this, I believe, is that hooks are likely broken on OS -X when dynamically linking. But this probably doesn't affect most -people since we're linking GHC dynamically, but most things themselves -link statically. --} - -foreign import ccall safe "initGCStatistics" - initGCStatistics :: IO () |