Hi Dominic - this looks like a problem with loading hmatrix into GHCi. Does it load without -prof and -fexternal-interpreter? How about with just -fexternal-interpreter?
Cheers SImon On 5 December 2016 at 12:20, Dominic Steinitz <domi...@steinitz.org> wrote: > I am trying to debug a package in which there is a divide by 0 error and > attempting to use Simon Marlow’s stack traces: https://simonmar.github.io/ > posts/2016-02-12-Stack-traces-in-GHCi.html. However ghci is complaining > about missing symbols. What do I need to add to the command line to coax > ghci into giving me a stack trace? > > > ~/Dropbox/Private/Stochastic/demo $ ghci -fexternal-interpreter -prof > fe-handling-example.o -i../../monad-bayes/src -package-db=.cabal-sandbox/ > x86_64-osx-ghc-8.0.1-packages.conf.d > > GHCi, version 8.0.1: http://www.haskell.org/ghc/ :? for help > > Prelude> :l app/Main.hs > > [ 1 of 16] Compiling Control.Monad.Bayes.LogDomain ( > ../../monad-bayes/src/Control/Monad/Bayes/LogDomain.hs, interpreted ) > > [ 2 of 16] Compiling Control.Monad.Bayes.Primitive ( > ../../monad-bayes/src/Control/Monad/Bayes/Primitive.hs, interpreted ) > > [ 3 of 16] Compiling Control.Monad.Bayes.Class ( > ../../monad-bayes/src/Control/Monad/Bayes/Class.hs, interpreted ) > > [ 4 of 16] Compiling Control.Monad.Bayes.Sampler ( > ../../monad-bayes/src/Control/Monad/Bayes/Sampler.hs, interpreted ) > > [ 5 of 16] Compiling Control.Monad.Bayes.Sequential ( > ../../monad-bayes/src/Control/Monad/Bayes/Sequential.hs, interpreted ) > > [ 6 of 16] Compiling Control.Monad.Bayes.Prior ( > ../../monad-bayes/src/Control/Monad/Bayes/Prior.hs, interpreted ) > > [ 7 of 16] Compiling Control.Monad.Bayes.Rejection ( > ../../monad-bayes/src/Control/Monad/Bayes/Rejection.hs, interpreted ) > > [ 8 of 16] Compiling Control.Monad.Bayes.Weighted ( > ../../monad-bayes/src/Control/Monad/Bayes/Weighted.hs, interpreted ) > > [ 9 of 16] Compiling Control.Monad.Bayes.Population ( > ../../monad-bayes/src/Control/Monad/Bayes/Population.hs, interpreted ) > > [10 of 16] Compiling Control.Monad.Bayes.Deterministic ( > ../../monad-bayes/src/Control/Monad/Bayes/Deterministic.hs, interpreted ) > > [11 of 16] Compiling Control.Monad.Bayes.Conditional ( > ../../monad-bayes/src/Control/Monad/Bayes/Conditional.hs, interpreted ) > > [12 of 16] Compiling Control.Monad.Bayes.Dist ( > ../../monad-bayes/src/Control/Monad/Bayes/Dist.hs, interpreted ) > > [13 of 16] Compiling Control.Monad.Bayes.Coprimitive ( > ../../monad-bayes/src/Control/Monad/Bayes/Coprimitive.hs, interpreted ) > > [14 of 16] Compiling Control.Monad.Bayes.Trace ( > ../../monad-bayes/src/Control/Monad/Bayes/Trace.hs, interpreted ) > > [15 of 16] Compiling Control.Monad.Bayes.Inference ( > ../../monad-bayes/src/Control/Monad/Bayes/Inference.hs, interpreted ) > > [16 of 16] Compiling Main ( app/Main.hs, interpreted ) > > > > app/Main.hs:92:7: warning: [-Wunused-matches] > > Defined but not used: ‘a’ > > > > app/Main.hs:92:9: warning: [-Wunused-matches] > > Defined but not used: ‘prevP’ > > > > app/Main.hs:92:15: warning: [-Wunused-matches] > > Defined but not used: ‘prevZ’ > > > > app/Main.hs:106:5: warning: [-Wunused-do-bind] > > A do-notation statement discarded a result of type ‘GHC.Prim.Any’ > > Suppress this warning by saying > > ‘_ <- ($) > > error (++) "You are here " (++) show state (++) " " show > p_obs’ > > Ok, modules loaded: Main, Control.Monad.Bayes.LogDomain, > Control.Monad.Bayes.Primitive, Control.Monad.Bayes.Class, > Control.Monad.Bayes.Population, Control.Monad.Bayes.Conditional, > Control.Monad.Bayes.Inference, Control.Monad.Bayes.Sampler, > Control.Monad.Bayes.Rejection, Control.Monad.Bayes.Weighted, > Control.Monad.Bayes.Sequential, Control.Monad.Bayes.Trace, > Control.Monad.Bayes.Dist, Control.Monad.Bayes.Prior, > Control.Monad.Bayes.Deterministic, > Control.Monad.Bayes.Coprimitive. > > *Main> main > > ghc-iserv-prof: > > lookupSymbol failed in relocateSection (relocate external) > > /Users/dom/Dropbox/Private/Stochastic/demo/.cabal- > sandbox/lib/x86_64-osx-ghc-8.0.1/hmatrix-0.18.0.0-7aYEqJARQEvKYNyM4UGAPZ/ > libHShmatrix-0.18.0.0-7aYEqJARQEvKYNyM4UGAPZ_p.a: unknown symbol > `___ieee_divdc3' > > ghc-iserv-prof: Could not on-demand load symbol '_vectorScan' > > > > ghc-iserv-prof: > > lookupSymbol failed in relocateSection (relocate external) > > /Users/dom/Dropbox/Private/Stochastic/demo/.cabal- > sandbox/lib/x86_64-osx-ghc-8.0.1/hmatrix-0.18.0.0-7aYEqJARQEvKYNyM4UGAPZ/ > libHShmatrix-0.18.0.0-7aYEqJARQEvKYNyM4UGAPZ_p.a: unknown symbol > `_vectorScan' > > ghc-iserv-prof: Could not on-demand load symbol '_ > hmatrixzm0zi18zi0zi0zm7aYEqJARQEvKYNyM4UGAPZZ_InternalziVectorizzed_ > constantAux_closure' > > > > ghc-iserv-prof: > > lookupSymbol failed in relocateSection (relocate external) > > /Users/dom/Dropbox/Private/Stochastic/demo/.cabal- > sandbox/lib/x86_64-osx-ghc-8.0.1/hmatrix-0.18.0.0-7aYEqJARQEvKYNyM4UGAPZ/ > libHShmatrix-0.18.0.0-7aYEqJARQEvKYNyM4UGAPZ_p.a: unknown symbol `_ > hmatrixzm0zi18zi0zi0zm7aYEqJARQEvKYNyM4UGAPZZ_InternalziVectorizzed_ > constantAux_closure' > > ghc-iserv-prof: Could not on-demand load symbol '_ > hmatrixzm0zi18zi0zi0zm7aYEqJARQEvKYNyM4UGAPZZ_InternalziMatrix_Matrix_con_ > info' > > > > ghc-iserv-prof: > > lookupSymbol failed in relocateSection (relocate external) > > /Users/dom/Dropbox/Private/Stochastic/demo/.cabal- > sandbox/lib/x86_64-osx-ghc-8.0.1/hmatrix-0.18.0.0-7aYEqJARQEvKYNyM4UGAPZ/ > libHShmatrix-0.18.0.0-7aYEqJARQEvKYNyM4UGAPZ_p.a: unknown symbol `_ > hmatrixzm0zi18zi0zi0zm7aYEqJARQEvKYNyM4UGAPZZ_InternalziMatrix_Matrix_con_ > info' > > ghc-iserv-prof: Could not on-demand load symbol '_ > hmatrixzm0zi18zi0zi0zm7aYEqJARQEvKYNyM4UGAPZZ_InternalziElement_zgzl_info' > > > > ghc-iserv-prof: > > lookupSymbol failed in relocateSection (relocate external) > > /Users/dom/Dropbox/Private/Stochastic/demo/.cabal- > sandbox/lib/x86_64-osx-ghc-8.0.1/hmatrix-0.18.0.0-7aYEqJARQEvKYNyM4UGAPZ/ > libHShmatrix-0.18.0.0-7aYEqJARQEvKYNyM4UGAPZ_p.a: unknown symbol `_ > hmatrixzm0zi18zi0zi0zm7aYEqJARQEvKYNyM4UGAPZZ_InternalziElement_zgzl_info' > > ghc-iserv-prof: Could not on-demand load symbol '_ > hmatrixzm0zi18zi0zi0zm7aYEqJARQEvKYNyM4UGAPZZ_InternalziUtil_ > zdfIndexableVectorDouble_closure' > > > > > > ByteCodeLink.lookupCE > > During interactive linking, GHCi couldn't find the following symbol: > > hmatrixzm0zi18zi0zi0zm7aYEqJARQEvKYNyM4UGAPZZ_InternalziUtil_ > zdfIndexableVectorDouble_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-b...@haskell.org > > > > Dominic Steinitz > domi...@steinitz.org > http://idontgetoutmuch.wordpress.com > > _______________________________________________ > Glasgow-haskell-users mailing list > Glasgow-haskell-users@haskell.org > http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users >
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