#12000: static pointer in ghci -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Iceland_jack): And {{{ Prelude> let a = static id ByteCodeLink.lookupCE During interactive linking, GHCi couldn't find the following symbol: interactive_Ghci2_sptEntryZC2_closure This may be due to you not asking GHCi to load extra object files, archives or DLLs needed by your current session. Restart GHCi, specifying the missing library using the -L/path/to/object/dir and -lmissinglibname flags, or simply by naming the relevant files on the GHCi command line. Alternatively, this link failure might indicate a bug in GHCi. If you suspect the latter, please send a bug report to: glasgow-haskell-bugs@haskell.org }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12000#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#12000: static pointer in ghci -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Documentation | Version: 8.1 Resolution: | Keywords: | StaticPointers Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9878 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by facundo.dominguez): I'm testing the master branch of GHC. I can reproduce this without using the static form. {{{ Prelude> c = 'a' Prelude> c <interactive>:9:1: error: Variable not in scope: c }}} The crash reported later, I can't see. {{{

let a = static id Prelude> a

<interactive>:6:1: error: • No instance for (Data.Typeable.Internal.Typeable a0) arising from a use of ‘it’ • In a stmt of an interactive GHCi command: print it }}} That said, the static pointers produced in GHCi can only be found later if they are created in compiled (and later loaded) modules. Entering a static form at the prompt won't make it. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12000#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#12000: static pointer in ghci -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: Type: feature request | Status: closed Priority: normal | Milestone: Component: Documentation | Version: 8.1 Resolution: invalid | Keywords: | StaticPointers Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #9878 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by facundo.dominguez): * status: new => closed * resolution: => invalid Comment: Probably not. If the crash persisted after upgrading GHC, it would deserve another ticket. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12000#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler