That's very exciting! On Thu, 28 Oct 2021, 3.08 Ben Gamari, <b...@well-typed.com> wrote:
> Ben Gamari <b...@well-typed.com> writes: > > > Hi all, > > > > Today I verified that with Luite's recent work on the interpreter it is > > now possible to run GHC entirely within GHCi (when bootstrapping from > > GHC 9.2). > > > > ... > > > I have fixed the break-array issue noted in the above message in !6848. > It is now possible to use `:trace` on GHC itself: > > > $ hadrian/ghci > GHCi, version 9.2.1: https://www.haskell.org/ghc/ :? for help > . > . > . > λ> import Main > λ> :set args -B/opt/exp/ghc/ghc-landing/_build/stage1/lib Hi.hs -v3 > -fforce-recomp > λ> :set -fbreak-on-error > λ> :trace main > Glasgow Haskell Compiler, Version 9.3.20211027, stage 1 booted by GHC > version 9.2.1 > ^CStopped in <exception thrown>, <unknown> > _exception :: e = _ > [<unknown>] λ> :hist > -1 : fromException > (/opt/exp/ghc/ghc-landing/compiler/GHC/Utils/Panic.hs:114:19-24) > -2 : uniq > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:205:7-10) > -3 : moduleNameFS > (/opt/exp/ghc/ghc-landing/compiler/GHC/Unit/Module/Name.hs:72:33-35) > -4 : stableModuleNameCmp > (/opt/exp/ghc/ghc-landing/compiler/GHC/Unit/Module/Name.hs:62:64-78) > -5 : lexicalCompareFS > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:252:18-25) > -6 : uniq > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:205:7-10) > -7 : moduleNameFS > (/opt/exp/ghc/ghc-landing/compiler/GHC/Unit/Module/Name.hs:72:33-35) > -8 : stableModuleNameCmp > (/opt/exp/ghc/ghc-landing/compiler/GHC/Unit/Module/Name.hs:62:29-43) > -9 : lexicalCompareFS > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:252:6-13) > -10 : lexicalCompareFS > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:252:6-25) > -11 : lexicalCompareFS > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:(252,3)-(253,54)) > -12 : stableModuleNameCmp > (/opt/exp/ghc/ghc-landing/compiler/GHC/Unit/Module/Name.hs:62:29-78) > -13 : compare > (/opt/exp/ghc/ghc-landing/compiler/GHC/Unit/Module/Name.hs:42:23-49) > -14 : fs_sbs > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:207:7-12) > -15 : lexicalCompareFS > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:253:44-53) > -16 : fs_sbs > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:207:7-12) > -17 : lexicalCompareFS > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:253:31-40) > -18 : lexicalCompareFS > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:253:3-54) > -19 : uniq > (/opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:205:7-10) > -20 : moduleNameFS > (/opt/exp/ghc/ghc-landing/compiler/GHC/Unit/Module/Name.hs:72:33-35) > ... > [<unknown>] λ> :back > Logged breakpoint at > /opt/exp/ghc/ghc-landing/compiler/GHC/Utils/Panic.hs:114:19-24 > _result :: Maybe GHC.Utils.Panic.Plain.PlainGhcException > e :: SomeAsyncException > [-1: /opt/exp/ghc/ghc-landing/compiler/GHC/Utils/Panic.hs:114:19-24] λ> > :back > Logged breakpoint at > /opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:205:7-10 > _result :: Int > uniq :: Int > [-2: /opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:205:7-10] λ> > uniq > 603980920 > [-2: /opt/exp/ghc/ghc-landing/compiler/GHC/Data/FastString.hs:205:7-10] λ> > :back > Logged breakpoint at > /opt/exp/ghc/ghc-landing/compiler/GHC/Unit/Module/Name.hs:72:33-35 > _result :: ModuleName > mod :: ModuleName > [-3: /opt/exp/ghc/ghc-landing/compiler/GHC/Unit/Module/Name.hs:72:33-35] > λ> mod > ModuleName "GHC.Tc.Solver.Canonical" > > et cetera > _______________________________________________ > ghc-devs mailing list > ghc-devs@haskell.org > http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs >
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