#13894: isByteArrayPinned# should consider BF_LARGE -------------------------------------+------------------------------------- Reporter: winter | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- First of all, i want to make sure `isByteArrayPinned#` is intended to let user know if a given 'ByteArray#/MutableByteArray#' is movable during safe FFI call, isn't it? If that is the case, then the code for `stg_isByteArrayPinnedzh` is not enough, since not only bytes marked with `BF_PINNED` flag is not movable, but also the bytes which is marked with `BF_LARGE`. (I read the gc code and i'm confident this holds, but if it's not, please correct me). Currently i'm using a FFI trick[https://github.com/winterland1989/stdio/blob/master/cbits/bytes.c#L33] to get `isByteArrayPinned#` on older GHCs, i want to make sure if `BF_LARGE` works. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13894 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler