Hi Simon, Thanks for getting back.
1. Without -prof and -fexternal-interpreter, the program runs fine. 2. With just -prof, the program runs fine. 3. With just -fexternal-interpreter, I get the error below. Dominic. > On 7 Dec 2016, at 13:52, Simon Marlow <marlo...@gmail.com> wrote: > > 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 > <mailto: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 > <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/ > > <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 <mailto:glasgow-haskell-b...@haskell.org> > > > > Dominic Steinitz > domi...@steinitz.org <mailto:domi...@steinitz.org> > http://idontgetoutmuch.wordpress.com <http://idontgetoutmuch.wordpress.com/> > > _______________________________________________ > Glasgow-haskell-users mailing list > Glasgow-haskell-users@haskell.org <mailto:Glasgow-haskell-users@haskell.org> > http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users > <http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users> > Dominic Steinitz domi...@steinitz.org http://idontgetoutmuch.wordpress.com
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