May 2017 - ghc-devs - Haskell.org

Getting valid substitutions to work for subsumption
by Matthías Páll Gissurarson 18 May '17

18 May '17

Greetings, I'm working on improving the valid substitution feature that I implemented a few weeks ago, but I'm having a problem making it work with subsumption, i.e. if the types are not exactly equal. You can find all the code on a branch on my fork of GHC on GitHub <https://github.com/Tritlo/ghc/tree/show-valid-substitutions-subsumes>, with the subsumption checker being the following function: -- Reports whether one type subsumes another, discarding any errors tcSubsumes :: TcSigmaType -> TcSigmaType -> TcM Bool tcSubsumes hole_ty ty = discardErrs $ do { (_, wanted, _) <- pushLevelAndCaptureConstraints $ tcSubType_NC ExprSigCtxt ty hole_ty ; (rem, _) <- runTcS (simpl_top wanted) ; return (isEmptyWC rem) } The current example I'm working with is module T3 where ps3 :: Num a => a -> a -> a ps3 = (+) ps4 :: Num a => a -> a -> a ps4 = _ Which should of course include (+) as a suggestion. However, when it checks for (+), it does not report it as a match. What could be going wrong here? Could someone more familiar with the underlying machinery give some guidance on what could be going wrong here? Dumping the traceTc (i.e. running ./inplace/bin/ghc-stage2 -o test t3.hs -ddump-tc-trace) gives the following relevant output in the dump: Checking for substitution + parent:Num imported from ‘Prelude’ at t3.hs:1:8-9 (and originally defined in ‘GHC.Num’) tcSubType_NC an expression type signature forall a. Num a => a -> a -> a a_a1D1[sk:2] -> a_a1D1[sk:2] -> a_a1D1[sk:2] tc_sub_tc_type (general case) ty_actual = forall a. Num a => a -> a -> a ty_expected = a_a1D1[sk:2] -> a_a1D1[sk:2] -> a_a1D1[sk:2] tcSkolemise tc_sub_type_ds ty_actual = forall a. Num a => a -> a -> a ty_expected = a_a1D1[sk:2] -> a_a1D1[sk:2] -> a_a1D1[sk:2] instCallConstraints [$dNum_a4eI] Instantiating all tyvars? True origin arising from a type equality forall a. Num a => a -> a -> a ~ a_a1D1[sk:2] -> a_a1D1[sk:2] -> a_a1D1[sk:2] type forall a. Num a => a -> a -> a theta [Num a_a19t] leave_bndrs [] with [a_a4eH[tau:3]] theta: [Num a0_a4eH[tau:3]] tc_sub_type_ds ty_actual = a0_a4eH[tau:3] -> a0_a4eH[tau:3] -> a0_a4eH[tau:3] ty_expected = a_a1D1[sk:2] -> a_a1D1[sk:2] -> a_a1D1[sk:2] tc_sub_type_ds ty_actual = a0_a4eH[tau:3] -> a0_a4eH[tau:3] ty_expected = a_a1D1[sk:2] -> a_a1D1[sk:2] tc_sub_type_ds ty_actual = a0_a4eH[tau:3] ty_expected = a_a1D1[sk:2] u_tys tclvl 3 a0_a4eH[tau:3] ~ a_a1D1[sk:2] arising from a type equality a0_a4eH[tau:3] -> a0_a4eH[tau:3] -> a0_a4eH[tau:3] ~ a_a1D1[sk:2] -> a_a1D1[sk:2] -> a_a1D1[sk:2] u_tys tclvl 3 * ~ * arising from a kind equality arising from a0_a4eH[tau:3] ~ a_a1D1[sk:2] u_tys tclvl 3 'GHC.Types.LiftedRep ~ 'GHC.Types.LiftedRep arising from a kind equality arising from a0_a4eH[tau:3] ~ a_a1D1[sk:2] u_tys yields no coercion u_tys yields no coercion writeMetaTyVar a_a4eH[tau:3] :: * := a_a1D1[sk:2] u_tys yields no coercion tc_sub_tc_type (general case) ty_actual = a_a1D1[sk:2] ty_expected = a0_a4eH[tau:3] tcSkolemise tc_sub_type_ds ty_actual = a_a1D1[sk:2] ty_expected = a0_a4eH[tau:3] u_tys tclvl 3 a_a1D1[sk:2] ~ a0_a4eH[tau:3] arising from a type equality a0_a4eH[tau:3] -> a0_a4eH[tau:3] -> a0_a4eH[tau:3] ~ a_a1D1[sk:2] -> a_a1D1[sk:2] -> a_a1D1[sk:2] u_tys yields no coercion tc_sub_tc_type (general case) ty_actual = a_a1D1[sk:2] ty_expected = a0_a4eH[tau:3] tcSkolemise tc_sub_type_ds ty_actual = a_a1D1[sk:2] ty_expected = a0_a4eH[tau:3] u_tys tclvl 3 a_a1D1[sk:2] ~ a0_a4eH[tau:3] arising from a type equality a0_a4eH[tau:3] -> a0_a4eH[tau:3] -> a0_a4eH[tau:3] ~ a_a1D1[sk:2] -> a_a1D1[sk:2] -> a_a1D1[sk:2] u_tys yields no coercion newTcEvBinds unique = a4eJ solveWanteds { WC {wc_simple = [WD] $dNum_a4eI {0}:: Num a0_a4eH[tau:3] (CNonCanonical)} solveSimpleWanteds { {[WD] $dNum_a4eI {0}:: Num a0_a4eH[tau:3] (CNonCanonical)} ----------------------------- Start solver pipeline { work item = [WD] $dNum_a4eI {0}:: Num a0_a4eH[tau:3] (CNonCanonical) inerts = {Unsolved goals = 0} rest of worklist = WL {} runStage canonicalization { workitem = [WD] $dNum_a4eI {0}:: Num a0_a4eH[tau:3] (CNonCanonical) canonicalize (non-canonical) [WD] $dNum_a4eI {0}:: Num a0_a4eH[tau:3] (CNonCanonical) canEvNC:cls Num [a0_a4eH[tau:3]] flatten_many { a0_a4eH[tau:3] Following filled tyvar a_a4eH[tau:3] = a_a1D1[sk:2] Unfilled tyvar a_a1D1[sk:2] flatten } a_a1D1[sk:2] canClass [WD] $dNum_a4eI {0}:: Num a0_a4eH[tau:3] Num a_a1D1[sk:2] ContinueWith [WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] end stage canonicalization } runStage interact with inerts { workitem = [WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan) end stage interact with inerts } runStage top-level reactions { workitem = [WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan) doTopReact [WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan) matchClassInst pred = Num a_a1D1[sk:2] { matchClass not matching dict Num a_a1D1[sk:2] } matchClassInst result NoInstance try_fundeps [WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan) end stage top-level reactions } insertInertCan { Trying to insert new non-eq inert item: [WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan) addInertCan } Step 1[l:2,d:0] Kept as inert: [WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] End solver pipeline (kept as inert) } final_item = [WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan) getUnsolvedInerts tv eqs = {} fun eqs = {} insols = {} others = {[WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan)} implics = {} Unflattening {Funeqs = Tv eqs =} Unflattening 1 {} Unflattening 2 {} Unflattening 3 {} Unflattening done {} zonkSimples done: {} solveSimpleWanteds end } iterations = 1 residual = WC {wc_simple = [WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan)} expandSuperClasses { End expandSuperClasses no-op } solveWanteds middle simples1 = {[WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan)} simples2 = {[WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan)} solveWanteds } final wc = WC {wc_simple = [WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan)} current evbinds = {} zonkSimples done: {[WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan(psc))} zonkSimples done: {} applyDefaultingRules { wanteds = WC {wc_simple = [WD] $dNum_a4eI {0}:: Num a_a1D1[sk:2] (CDictCan(psc))} groups = [] info = ([Integer, Double], (False, False)) applyDefaultingRules } [] Constraint solver steps = 1 -- Matthías Páll Gissurarson

3 3

Type families and classes
by Alan & Kim Zimmerman 18 May '17

18 May '17

Hi all I am experimenting with Trees that Grow [1] in the context of the GHC HsSyn AST, and wanting to express that a given extension point needs to have certain properties. The specific case is to be able to contain a SourceText, in the context of HsLit So I have (stripped down) data GHCX type family XHsString x type instance XHsString GHCX = SourceText class HasSourceText a where -- Provide setters to mimic existing constructors noSourceText :: a sourceText :: String -> a getSourceText :: a -> SourceText instance HasSourceText (XHsString GHCX) where noSourceText = NoSourceText sourceText s = SourceText s getSourceText a = a But this gives an error compiler/hsSyn/HsExtension.hs:80:10: error: • Illegal type synonym family application in instance: XHsString GHCX • In the instance declaration for ‘HasSourceText (XHsString GHCX)’ Is there some way to achieve this, or is it simply impossible? The full work-in-progress source is here[2] Regards Alan [1] https://arxiv.org/abs/1610.04799 [2] https://github.com/alanz/ghc/blob/df1c3b3d42284dd121086e6c571793f19e758977/…

2 2

Newcomer help (Trac #12056)
by Sean Gillespie 17 May '17

17 May '17

Howdy, I started looking at Trac #12056 (https://ghc.haskell.org/trac/ghc/ticket/12056) but I'm a bit stuck. Indeed, if I run the following command, I get no warnings ghc Main.hs -Wfoo -w -Wunrecognised-warning-flags -Wbar But if I also specify -Wdeprecated-flags, I get warnings again ghc Main.hs -Wfoo -w -Wunrecognised-warning-flags -Wdeprecated-flags -Wbar on the commandline: warning: unrecognised warning flag: -Wfoo on the commandline: warning: unrecognised warning flag: -Wbar Then I found this little function in compiler/main/HscTypes handleFlagWarnings :: DynFlags -> [Located String] -> IO () handleFlagWarnings dflags warns = when (wopt Opt_WarnDeprecatedFlags dflags) $ do -- It would be nicer if warns :: [Located MsgDoc], but that -- has circular import problems. let bag = listToBag [ mkPlainWarnMsg dflags loc (text warn) | L loc warn <- warns ] printOrThrowWarnings dflags bag So I updated it accept Opt_WarnDeprecatedFlags and Opt_WarnUnrecognisedWarningsFlags. Complete patch here: https://phabricator.haskell.org/D3581 Unfortunately when I did that, -Wno-deprecated-flags no longer had an effect so long as -Wunrecognised-warnings-flags ./inplace/bin/ghc-stage2 -Wunrecognised-warning-flags -Wno-deprecated-flags -XOverlappingInstances on the commandline: warning: -XOverlappingInstances is deprecated: instead use per-instance pragmas OVERLAPPING/OVERLAPPABLE/OVERLAPS And now that is where I'm stuck; I can't seem to find a place where I can distinguish between the different warning types. Even WarnReason is set to NoReason because of the usage of mkPlainWarnMsg. So if I could get some guidance on this, I'd be very grateful. Thanks Sean G

2 1

Re: [ANNOUNCE] GHC 8.2.1 release candidate 2
by Ben Gamari 16 May '17

16 May '17

Markus Trippelsdorf <markus(a)trippelsdorf.de> writes: > On 2017.05.15 at 22:47 -0400, Ben Gamari wrote: >> >> >> The GHC team is very pleased to announce the second candidate of the >> 8.2.1 release of the Glasgow Haskell Compiler. Source and binary >> distributions are available at >> >> https://downloads.haskell.org/~ghc/8.2.1-rc2/ >> >> This is the second of what will likely be either two or three release >> candidates leading up the final 8.2.1 release. This release will >> feature, >> >> As always, please let us know if you have difficulty. Thanks to everyone >> who has contributed! >> >> Happy testing, > > Unfortunately xmobar segfaults from time to time when build with > 8.2.1-rc2, e.g.: > Thanks for your report! Segfaults are certainly no good. Do you know whether these are also reproducible with rc1? What version of xmobar are you using? What does your configuration look like? I've started an xmobar built from upstream's master branch with an empty configuration to see whether this is reproducible locally. I've opened #13707 to track this. Cheers, - Ben

1 0

unix/tests failures
by Simon Peyton Jones 16 May '17

16 May '17

Something is wrong with libraries/tests/unix. >From `sh validate -fast -no-clean` I get the pile of errors below. If I cd libraries/unix; make THREADS=20 it all works fine It's quite annoying. Any ideas? Simon Unexpected failures: T8308/T8308.run T8308 [bad stdout] (normal) libraries/unix/tests/user001.run user001 [bad exit code] (normal) libraries/unix/tests/forkprocess01.run forkprocess01 [exit code non-0] (threaded1_ls) libraries/unix/tests/getEnvironment01.run getEnvironment01 [bad exit code] (normal) libraries/unix/tests/T1185.run T1185 [bad exit code] (normal) libraries/unix/tests/processGroup001.run processGroup001 [bad exit code] (normal) libraries/unix/tests/fileStatusByteString.run fileStatusByteString [exit code non-0] (normal) libraries/unix/tests/fileStatus.run fileStatus [exit code non-0] (normal) libraries/unix/tests/T8108.run T8108 [bad exit code] (normal) libraries/unix/tests/libposix/posix009.run posix009 [exit code non-0] (normal) libraries/unix/tests/libposix/posix004.run posix004 [exit code non-0] (normal) libraries/unix/tests/libposix/posix010.run posix010 [exit code non-0] (normal) libraries/unix/tests/libposix/posix014.run posix014 [exit code non-0] (normal) libraries/unix/tests/libposix/posix003.run posix003 [exit code non-0] (normal) libraries/unix/tests/libposix/posix006.run posix006 [exit code non-0] (normal) libraries/unix/tests/libposix/posix005.run posix005 [exit code non-0] (normal) Framework failures: signals001 [duplicate] (There are multiple tests with this name) signals002 [duplicate] (There are multiple tests with this name) fileexist01 [duplicate] (There are multiple tests with this name) forkprocess01 [duplicate] (There are multiple tests with this name) user001 [duplicate] (There are multiple tests with this name) resourceLimit [duplicate] (There are multiple tests with this name) queryfdoption01 [duplicate] (There are multiple tests with this name) getEnvironment01 [duplicate] (There are multiple tests with this name) getEnvironment02 [duplicate] (There are multiple tests with this name) getGroupEntryForName [duplicate] (There are multiple tests with this name) getUserEntryForName [duplicate] (There are multiple tests with this name) signals004 [duplicate] (There are multiple tests with this name) fdReadBuf001 [duplicate] (There are multiple tests with this name) fileStatus [duplicate] (There are multiple tests with this name) fileStatusByteString [duplicate] (There are multiple tests with this name) T1185 [duplicate] (There are multiple tests with this name) T3816 [duplicate] (There are multiple tests with this name) processGroup001 [duplicate] (There are multiple tests with this name) processGroup002 [duplicate] (There are multiple tests with this name) executeFile001 [duplicate] (There are multiple tests with this name) T8108 [duplicate] (There are multiple tests with this name) posix002 [duplicate] (There are multiple tests with this name) posix003 [duplicate] (There are multiple tests with this name) posix004 [duplicate] (There are multiple tests with this name) posix005 [duplicate] (There are multiple tests with this name) posix006 [duplicate] (There are multiple tests with this name) posix009 [duplicate] (There are multiple tests with this name) posix010 [duplicate] (There are multiple tests with this name) posix014 [duplicate] (There are multiple tests with this name) libraries/unix/tests/forkprocess01.run forkprocess01 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/forkprocess01.run/forkprocess01.comp.stderr') libraries/unix/tests/user001.run user001 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/user001.run/user001.comp.stderr') libraries/unix/tests/getEnvironment01.run getEnvironment01 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/getEnvironment01.run/getEnvironment01.comp.stderr') libraries/unix/tests/T1185.run T1185 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/T1185.run/T1185.comp.stderr') libraries/unix/tests/processGroup001.run processGroup001 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/processGroup001.run/processGroup001.comp.stderr') libraries/unix/tests/fileStatus.run fileStatus [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/fileStatus.run/fileStatus.comp.stderr') libraries/unix/tests/fileStatusByteString.run fileStatusByteString [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/fileStatusByteString.run/fileStatusByteString.comp.stderr') libraries/unix/tests/T8108.run T8108 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/T8108.run/T8108.comp.stderr') libraries/unix/tests/libposix/posix009.run posix009 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/libposix/posix009.run/posix009.comp.stderr') libraries/unix/tests/libposix/posix004.run posix004 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/libposix/posix004.run/posix004.comp.stderr') libraries/unix/tests/libposix/posix010.run posix010 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/libposix/posix010.run/posix010.comp.stderr') libraries/unix/tests/libposix/posix014.run posix014 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/libposix/posix014.run/posix014.comp.stderr') libraries/unix/tests/libposix/posix003.run posix003 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/libposix/posix003.run/posix003.comp.stderr') libraries/unix/tests/libposix/posix005.run posix005 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/libposix/posix005.run/posix005.comp.stderr') libraries/unix/tests/libposix/posix006.run posix006 [normal] ([Errno 2] No such file or directory: '/tmp/ghctest-yu5pv2/test spaces/../../libraries/unix/tests/libposix/posix006.run/posix006.comp.stderr') The actual log has this kind of stuff cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getEnvironment02.run" && ./getEnvironment02 =====> forkprocess01(normal) 5910 of 5908 [0, 1, 29] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/forkprocess01.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o forkprocess01 forkprocess01.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getGroupEntryForName.run" && ./getGroupEntryForName cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/ghc-compact/tests/compact_share.run" && ./compact_share +RTS -DS -RTS =====> user001(normal) 5911 of 5908 [0, 1, 29] Compile failed (exit code 1) errors were: [1 of 1] Compiling Main ( forkprocess01.hs, forkprocess01.o ) forkprocess01.hi: openBinaryFile: does not exist (No such file or directory) *** unexpected failure for forkprocess01(threaded1_ls) cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/user001.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o user001 user001.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix =====> resourceLimit(normal) 5912 of 5908 [0, 2, 29] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/resourceLimit.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o resourceLimit resourceLimit.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix *** framework failure for forkprocess01(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/forkprocess01.run/forkprocess01.comp.stderr' =====> queryfdoption01(normal) 5913 of 5908 [0, 2, 30] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getEnvironment01.run" && ./getEnvironment01 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/queryfdoption01.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o queryfdoption01 queryfdoption01.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix =====> forkprocess01(threaded1_ls) 5913 of 5908 [0, 2, 30] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/forkprocess01.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o forkprocess01 forkprocess01.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -threaded -debug -package unix =====> getEnvironment01(normal) 5914 of 5908 [0, 2, 30] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getEnvironment01.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o getEnvironment01 getEnvironment01.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/signals004.run" && ./signals004 Wrong exit code for getEnvironment01(normal)(expected 0 , actual 127 ) Stderr ( getEnvironment01 ): /bin/sh: 1: ./getEnvironment01: not found *** unexpected failure for getEnvironment01(normal) =====> getEnvironment02(normal) 5915 of 5908 [0, 3, 30] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getEnvironment02.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o getEnvironment02 getEnvironment02.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix *** framework failure for getEnvironment01(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getEnvironment01.run/getEnvironment01.comp.stderr' =====> getGroupEntryForName(normal) 5916 of 5908 [0, 3, 31] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getGroupEntryForName.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o getGroupEntryForName getGroupEntryForName.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/ghc-compact/tests/compact_gc.run" && ./compact_gc +RTS -DS -RTS cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/processGroup001.run" && ./processGroup001 =====> getUserEntryForName(normal) 5917 of 5908 [0, 3, 31] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getUserEntryForName.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o getUserEntryForName getUserEntryForName.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/T1185.run" && ./T1185 =====> signals004(normal) 5918 of 5908 [0, 3, 31] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/signals004.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o signals004 signals004.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/T3816.run" && ./T3816 =====> fdReadBuf001(ghci) 5919 of 5908 [0, 3, 31] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/fdReadBuf001.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" fdReadBuf001.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output --interactive -v0 -ignore-dot-ghci -fno-ghci-history +RTS -I0.1 -RTS -package unix< fdReadBuf001.genscript =====> fileStatus(normal) 5920 of 5908 [0, 3, 31] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/fileStatus.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o fileStatus fileStatus.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/executeFile001.run" && ./executeFile001 =====> fileStatusByteString(normal) 5921 of 5908 [0, 3, 31] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/fileStatusByteString.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o fileStatusByteString fileStatusByteString.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix =====> T1185(normal) 5922 of 5908 [0, 3, 31] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/T1185.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o T1185 T1185.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/fileStatus.run" && ./fileStatus =====> T3816(normal) 5923 of 5908 [0, 3, 31] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/T3816.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o T3816 T3816.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix Compile failed (exit code 1) errors were: [1 of 1] Compiling Main ( fileStatusByteString.hs, fileStatusByteString.o ) Linking fileStatusByteString ... /usr/bin/ld: reopening fileStatusByteString.o: No such file or directory /usr/bin/ld: final link failed: No such file or directory collect2: ld returned 1 exit status `gcc' failed in phase `Linker'. (Exit code: 1) *** unexpected failure for fileStatusByteString(normal) =====> processGroup001(normal) 5924 of 5908 [0, 4, 31] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/processGroup001.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o processGroup001 processGroup001.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix002.run" && ./posix002 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/T8108.run" && ./T8108 Wrong exit code for fileStatus(normal)(expected 0 , actual 127 ) Stderr ( fileStatus ): /bin/sh: 1: ./fileStatus: not found *** unexpected failure for fileStatus(normal) =====> processGroup002(normal) 5925 of 5908 [0, 5, 31] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/processGroup002.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o processGroup002 processGroup002.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/processGroup002.run" && ./processGroup002 *** framework failure for fileStatus(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/fileStatus.run/fileStatus.comp.stderr' =====> T8108(normal) 5927 of 5908 [0, 5, 32] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/T8108.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o T8108 T8108.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix =====> executeFile001(normal) 5927 of 5908 [0, 5, 32] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/executeFile001.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o executeFile001 executeFile001.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -package unix *** framework failure for fileStatusByteString(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/fileStatusByteString.run/fileStatusByteString.comp.stderr' =====> posix002(normal) 5928 of 5908 [0, 5, 33] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix002.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o posix002 posix002.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/ghc-compact/tests/compact_bench.run" && ./compact_bench +RTS -DS -RTS 100 Wrong exit code for processGroup002(normal)(expected 0 , actual 127 ) Stderr ( processGroup002 ): /bin/sh: 1: ./processGroup002: not found *** unexpected failure for processGroup002(normal) =====> posix003(normal) 5929 of 5908 [0, 6, 33] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix003.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o posix003 posix003.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix009.run" && ./posix009 =====> posix004(normal) 5930 of 5908 [0, 6, 33] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix004.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o posix004 posix004.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output Compile failed (exit code 1) errors were: [1 of 1] Compiling Main ( posix003.hs, posix003.o ) Linking posix003 ... /usr/bin/ld: reopening posix003: No such file or directory /usr/bin/ld: final link failed: No such file or directory collect2: ld returned 1 exit status `gcc' failed in phase `Linker'. (Exit code: 1) *** unexpected failure for posix003(normal) =====> posix005(normal) 5931 of 5908 [0, 7, 33] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix005.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o posix005 posix005.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix004.run" && ./posix004 *** framework failure for processGroup002(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/processGroup002.run/processGroup002.comp.stderr' cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix014.run" && ./posix014 =====> posix006(normal) 5932 of 5908 [0, 7, 34] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix006.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o posix006 posix006.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output *** framework failure for posix003(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix003.run/posix003.comp.stderr' Wrong exit code for posix004(normal)(expected 0 , actual 127 ) Stderr ( posix004 ): /bin/sh: 1: ./posix004: not found *** unexpected failure for posix004(normal) =====> posix009(normal) 5933 of 5908 [0, 8, 35] =====> posix010(normal) 5934 of 5908 [0, 8, 35] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix009.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o posix009 posix009.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix010.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o posix010 posix010.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output =====> posix014(normal) 5935 of 5908 [0, 8, 35] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix014.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o posix014 posix014.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output Compile failed (exit code 1) errors were: [1 of 1] Compiling Main ( posix005.hs, posix005.o ) Linking posix005 ... /usr/bin/ld: reopening posix005: No such file or directory /usr/bin/ld: final link failed: No such file or directory collect2: ld returned 1 exit status `gcc' failed in phase `Linker'. (Exit code: 1) *** unexpected failure for posix005(normal) cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/signals001.run" && ./signals001 Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1061, in compile_and_run__ result = simple_build(name, way, extra_hc_opts, 0, top_mod, 1, 1, backpack = backpack) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1203, in simple_build exit_code = runCmd(cmd, None, stdout, stderr, opts.compile_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/forkprocess01.run/forkprocess01.comp.stderr' Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1061, in compile_and_run__ result = simple_build(name, way, extra_hc_opts, 0, top_mod, 1, 1, backpack = backpack) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1203, in simple_build exit_code = runCmd(cmd, None, stdout, stderr, opts.compile_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getEnvironment01.run/getEnvironment01.comp.stderr' Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1061, in compile_and_run__ result = simple_build(name, way, extra_hc_opts, 0, top_mod, 1, 1, backpack = backpack) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1203, in simple_build exit_code = runCmd(cmd, None, stdout, stderr, opts.compile_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/fileStatus.run/fileStatus.comp.stderr' Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1061, in compile_and_run__ result = simple_build(name, way, extra_hc_opts, 0, top_mod, 1, 1, backpack = backpack) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1203, in simple_build exit_code = runCmd(cmd, None, stdout, stderr, opts.compile_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/fileStatusByteString.run/fileStatusByteString.comp.stderr' Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1061, in compile_and_run__ result = simple_build(name, way, extra_hc_opts, 0, top_mod, 1, 1, backpack = backpack) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1203, in simple_build exit_code = runCmd(cmd, None, stdout, stderr, opts.compile_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/processGroup002.run/processGroup002.comp.stderr' Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1061, in compile_and_run__ result = simple_build(name, way, extra_hc_opts, 0, top_mod, 1, 1, backpack = backpack) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1203, in simple_build exit_code = runCmd(cmd, None, stdout, stderr, opts.compile_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix003.run/posix003.comp.stderr' Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1061, in compile_and_run__ result = simple_build(name, way, extra_hc_opts, 0, top_mod, 1, 1, backpack = backpack) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1203, in simple_build exit_code = runCmd(cmd, None, stdout, stderr, opts.compile_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix005.run/posix005.comp.stderr' Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1061, in compile_and_run__ result = simple_build(name, way, extra_hc_opts, 0, top_mod, 1, 1, backpack = backpack) cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix010.run" && ./posix010 Compile failed (exit code 1) errors were: [1 of 1] Compiling Main ( posix006.hs, posix006.o ) posix006.hs:8:11: warning: [-Wdeprecations (in -Wdefault)] In the use of 'sleep' (imported from System.Posix.Unistd): "This function has several shortcomings (see documentation). Please consider using Control.Concurrent.threadDelay instead." Linking posix006 ... /usr/bin/ld: reopening posix006: No such file or directory /usr/bin/ld: final link failed: No such file or directory collect2: ld returned 1 exit status `gcc' failed in phase `Linker'. (Exit code: 1) *** unexpected failure for posix006(normal) cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/fileexist01.run" && ./fileexist01 *** framework failure for posix005(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix005.run/posix005.comp.stderr' *** framework failure for posix004(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix004.run/posix004.comp.stderr' Wrong exit code for posix010(normal)(expected 0 , actual 127 ) Stderr ( posix010 ): /bin/sh: 1: ./posix010: not found *** unexpected failure for posix010(normal) *** framework failure for posix006(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix006.run/posix006.comp.stderr' cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/signals002.run" && ./signals002 *** framework failure for posix010(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix010.run/posix010.comp.stderr' cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/resourceLimit.run" && ./resourceLimit cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/forkprocess01.run" && ./forkprocess01 +RTS -ls -RTS cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getGroupEntryForName.run" && ./getGroupEntryForName cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/queryfdoption01.run" && ./queryfdoption01 < queryfdoption01.stdin cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getEnvironment02.run" && ./getEnvironment02 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/getUserEntryForName.run" && ./getUserEntryForName cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/user001.run" && ./user001 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/signals004.run" && ./signals004 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/processGroup001.run" && ./processGroup001 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/T1185.run" && ./T1185 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix002.run" && ./posix002 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/executeFile001.run" && ./executeFile001 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/T3816.run" && ./T3816 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/T8108.run" && ./T8108 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix009.run" && ./posix009 cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix014.run" && ./posix014 *** framework failure for T8108(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/T8108.run/T8108.run.stdout' *** framework failure for posix009(normal) [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix009.run/posix009.run.stdout' =====> T7815(threaded1) 5936 of 5908 [0, 11, 41] cd "/tmp/ghctest-2h3hp8/test spaces/./rts/T7815.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o T7815 T7815.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output -threaded -debug cd "/tmp/ghctest-2h3hp8/test spaces/./rts/T7815.run" && ./T7815 50000 +RTS -N2 -RTS =====> T7653(normal) 5937 of 5908 [0, 11, 41] cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/base/tests/T7653.run" && "/5playpen/simonpj/HEAD-5/inplace/test spaces/ghc-stage2" -o T7653 T7653.hs -dcore-lint -dcmm-lint -no-user-package-db -rtsopts -fno-warn-missed-specialisations -fshow-warning-groups -fdiagnostics-color=never -fno-diagnostics-show-caret -dno-debug-output cd "/tmp/ghctest-2h3hp8/test spaces/../../libraries/base/tests/T7653.run" && ./T7653 File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1203, in simple_build exit_code = runCmd(cmd, None, stdout, stderr, opts.compile_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix004.run/posix004.comp.stderr' Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1061, in compile_and_run__ result = simple_build(name, way, extra_hc_opts, 0, top_mod, 1, 1, backpack = backpack) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1203, in simple_build exit_code = runCmd(cmd, None, stdout, stderr, opts.compile_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix006.run/posix006.comp.stderr' Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1061, in compile_and_run__ result = simple_build(name, way, extra_hc_opts, 0, top_mod, 1, 1, backpack = backpack) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1203, in simple_build exit_code = runCmd(cmd, None, stdout, stderr, opts.compile_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix010.run/posix010.comp.stderr' Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1068, in compile_and_run__ return simple_run( name, way, cmd, getTestOpts().extra_run_opts ) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1268, in simple_run exit_code = runCmd(cmd, stdin, stdout, stderr, opts.run_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/T8108.run/T8108.run.stdout' Traceback (most recent call last): File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 768, in test_common_work do_test(name, way, func, args, files) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 852, in do_test result = func(*[name,way] + args) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1071, in compile_and_run return compile_and_run__( name, way, '', [], extra_hc_opts) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1068, in compile_and_run__ return simple_run( name, way, cmd, getTestOpts().extra_run_opts ) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1268, in simple_run exit_code = runCmd(cmd, stdin, stdout, stderr, opts.run_timeout_multiplier) File "/home/simonpj/code/HEAD-5/testsuite/driver/testlib.py", line 1831, in runCmd with io.open(stdout, 'wb') as f: IOError: [Errno 2] No such file or directory: '/tmp/ghctest-2h3hp8/test spaces/../../libraries/unix/tests/libposix/posix009.run/posix009.run.stdout'

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GHC 8.0.1-rc4 source tarball availability
by Ben Gamari 14 May '17

14 May '17

tl;dr: If you would like to produce a binary distribution for GHC 8.0.1-rc4 then let us know, grab the source distribution and start building. The binary distributions will be all released one week from today. Hello GHC packagers, I am happy to announce the release of the 8.0.1-rc4 source distribution to binary packagers. This release should resolve all of the issues noted in the release candidate 3 announcement. You will find the usual artifacts at http://downloads.haskell.org/~ghc/8.0.1-rc4/ For this candidate we are again following our new release policy [1], with a one-week delay between the release of the source and binary distributions. The goal of this policy is to give all platforms the opportunity for support from the first day of a release. If all of the expected binary releases are submitted before the week-long delay has elapsed, we will move forward with the release of the binaries on an accelerated schedule. It would be appreciated if you could reply to this message confirming that you intend to offer a binary distribution this release. Otherwise, let either Austin or I know if you have any trouble building your distribution. I have yet to push the ghc-8.0.1-rc4 tag in case we encounter unexpected issues but all of my builds with this tarball thusfar have gone quite well. Good luck and thanks for all of your work! Cheers, - Ben [1] https://mail.haskell.org/pipermail/ghc-devs/2016-March/011546.html

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RE: Hadrian status
by Andrey Mokhov 10 May '17

10 May '17

Hi Ben and all, I'm strongly in favour of switching GHC to Hadrian as soon as possible, because just keeping up with changes in GHC takes substantial effort. Zhen Zhang (in CC) has been recently helping me, and I hope he could make good progress towards this goal as part of his Summer of Haskell project (I believe he submitted an application). Switching will likely be a painful process for GHC developers, because some of the usual workflows will inevitably break. We could keep both Make and Hadrian in the tree for some period of time, but maintaining two completely different build systems is only feasible for a short period of time. Ben, Could I ask you to go through the open issues (https://github.com/snowleopard/hadrian/issues) and tag them with the 'tree-tremble' milestone if you think they must be implemented before the merge? I don't hack on GHC myself, so it's often difficult for me to judge the relative importance of features; it would be great if you could also tag the issues with priorities (I've just created tags high-/medium-/low-priority). Everyone: Please contribute to the discussions on the minimum set of features that Hadrian should support before it can replace Make in this thread: https://github.com/snowleopard/hadrian/issues/239. Cheers, Andrey -----Original Message----- From: Ben Gamari [mailto:ben@well-typed.com] Sent: 09 May 2017 21:37 To: Andrey Mokhov <andrey.mokhov(a)newcastle.ac.uk> Cc: GHC developers <ghc-devs(a)haskell.org> Subject: Hadrian status Hi Andrey, Given that 8.2.1 is finally starting to come together, now is probably a good time to start reflecting on what will come in 8.4. I think it would be great if we could finally get Hadrian into the tree for the 8.4 release. It would be even better if we could flip over to Hadrian as the primary build system. However, if we are to do this then I think we should leave plenty of time to iron out the inevitable bugs that will arise. Have you given much thought to the schedule post-8.2? Do you think a complete switch-over will be feasible? Cheers, - Ben

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GHC cross compilation survey
by Moritz Angermann 10 May '17

10 May '17

Dear friends, as some of you might have noticed, together with obsidian.systems, I’m trying to make cross compiling GHC a bit easier. To that extend, I’d like to invite you to fill out a short survey[1], so we understand the needs of the community better. Please follow the attached link and fill out the survey! Cheers, Moritz [1]: https://medium.com/@zw3rk/hello-world-a-cross-compilation-survey-890cb95029…

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Hadrian status
by Ben Gamari 09 May '17

09 May '17

Hi Andrey, Given that 8.2.1 is finally starting to come together, now is probably a good time to start reflecting on what will come in 8.4. I think it would be great if we could finally get Hadrian into the tree for the 8.4 release. It would be even better if we could flip over to Hadrian as the primary build system. However, if we are to do this then I think we should leave plenty of time to iron out the inevitable bugs that will arise. Have you given much thought to the schedule post-8.2? Do you think a complete switch-over will be feasible? Cheers, - Ben

1 0

Perf test failing: Trac #13668
by Simon Peyton Jones 09 May '17

09 May '17

Test perf/compiler/T9675 is failing (dramatically) for me. See https://ghc.haskell.org/trac/ghc/ticket/13668 Is it not failing for anyone else? Why does https://perf.haskell.org/ghc/ not show it up? Could someone (Reid?) track down which patch made it go bad? Simon

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