#16093: mkPluginUsage: file not found -------------------------------------+------------------------------------- Reporter: lerkok | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.6.3 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: | -------------------------------------+------------------------------------- Description changed by lerkok: Old description:
I've been trying to track down another plugin issue when I ran into this one.
I have the following `TestPlugin.hs` file:
{{{#!hs module TestPlugin (plugin) where
import GhcPlugins
plugin :: Plugin plugin = defaultPlugin {installCoreToDos = install} where install _ todos = return (test : todos)
test = CoreDoPluginPass "Test" return }}}
And the following `Test.hs` file:
{{{#!hs {-# OPTIONS_GHC -fplugin TestPlugin #-}
main :: IO () main = return () }}}
They are both in the same directory. With ghc 8.4.2, I have:
{{{ $ ghci-8.4.2 -package ghc Test.hs GHCi, version 8.4.2: http://www.haskell.org/ghc/ :? for help [1 of 2] Compiling TestPlugin ( TestPlugin.hs, interpreted ) [2 of 2] Compiling Main ( Test.hs, interpreted ) Ok, two modules loaded. }}}
But with ghc 8.6.3, I get:
{{{ $ ghci-8.6.3 -package ghc Test.hs GHCi, version 8.6.3: http://www.haskell.org/ghc/ :? for help [1 of 2] Compiling TestPlugin ( TestPlugin.hs, interpreted ) [2 of 2] Compiling Main ( Test.hs, interpreted ) ghc: panic! (the 'impossible' happened) (GHC version 8.6.3 for x86_64-apple-darwin): mkPluginUsage: file not found TestPlugin ./TestPlugin.o Call stack: CallStack (from HasCallStack): callStackDoc, called at compiler/utils/Outputable.hs:1160:37 in ghc:Outputable pprPanic, called at compiler/deSugar/DsUsage.hs:234:15 in ghc:DsUsage
Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}}
The problem goes away if I first compile `TestPlugin.hs` and create a `.o` file; but nonetheless this seems to be at least "unexpected" by ghci.
New description: I have the following `TestPlugin.hs` file: {{{#!hs module TestPlugin (plugin) where import GhcPlugins plugin :: Plugin plugin = defaultPlugin {installCoreToDos = install} where install _ todos = return (test : todos) test = CoreDoPluginPass "Test" return }}} And the following `Test.hs` file: {{{#!hs {-# OPTIONS_GHC -fplugin TestPlugin #-} main :: IO () main = return () }}} They are both in the same directory. With ghc 8.4.2, I have: {{{ $ ghci-8.4.2 -package ghc Test.hs GHCi, version 8.4.2: http://www.haskell.org/ghc/ :? for help [1 of 2] Compiling TestPlugin ( TestPlugin.hs, interpreted ) [2 of 2] Compiling Main ( Test.hs, interpreted ) Ok, two modules loaded. }}} But with ghc 8.6.3, I get: {{{ $ ghci-8.6.3 -package ghc Test.hs GHCi, version 8.6.3: http://www.haskell.org/ghc/ :? for help [1 of 2] Compiling TestPlugin ( TestPlugin.hs, interpreted ) [2 of 2] Compiling Main ( Test.hs, interpreted ) ghc: panic! (the 'impossible' happened) (GHC version 8.6.3 for x86_64-apple-darwin): mkPluginUsage: file not found TestPlugin ./TestPlugin.o Call stack: CallStack (from HasCallStack): callStackDoc, called at compiler/utils/Outputable.hs:1160:37 in ghc:Outputable pprPanic, called at compiler/deSugar/DsUsage.hs:234:15 in ghc:DsUsage Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} The problem goes away if I first compile `TestPlugin.hs` and create a `.o` file; but nonetheless this seems to be at least "unexpected" by ghci. -- -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16093#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler