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* All the tests in tests/ghci.debugger now pass with
-fexternal-interpreter. These tests are now run with the ghci-ext way
in addition to the normal way so we won't break it in the future.
* I removed all the unsafeCoerce# calls from RtClosureInspect. Yay!
The main changes are:
* New messages: GetClosure and Seq. GetClosure is a remote interface to
GHC.Exts.Heap.getClosureData, which required Binary instances for
various datatypes. Fortunately this wasn't too painful thanks to
DeriveGeneric.
* No cheating by unsafeCoercing values when printing them. Now we have
to turn the Closure representation back into the native representation
when printing Int, Float, Double, Integer and Char. Of these, Integer
was the most painful - we now have a dependency on integer-gmp due to
needing access to the representation.
* Fixed a bug in rts/Heap.c - it was bogusly returning stack content as
pointers for an AP_STACK closure.
Test Plan:
* `cd testsuite/tests/ghci.debugger && make`
* validate
Reviewers: bgamari, patrickdoc, nomeata, angerman, hvr, erikd, goldfire
Subscribers: alpmestan, snowleopard, rwbarton, thomie, carter
GHC Trac Issues: #13184
Differential Revision: https://phabricator.haskell.org/D4955
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SMALL_MUT_ARR_PTRS_FROZEN0 -> SMALL_MUT_ARR_PTRS_FROZEN_DIRTY
SMALL_MUT_ARR_PTRS_FROZEN -> SMALL_MUT_ARR_PTRS_FROZEN_CLEAN
MUT_ARR_PTRS_FROZEN0 -> MUT_ARR_PTRS_FROZEN_DIRTY
MUT_ARR_PTRS_FROZEN -> MUT_ARR_PTRS_FROZEN_CLEAN
Naming is now consistent with other CLEAR/DIRTY objects (MVAR, MUT_VAR,
MUT_ARR_PTRS).
(alternatively we could rename MVAR_DIRTY/MVAR_CLEAN etc. to MVAR0/MVAR)
Removed a few comments in Scav.c about FROZEN0 being on the mut_list
because it's now clear from the closure type.
Reviewers: bgamari, simonmar, erikd
Reviewed By: simonmar
Subscribers: rwbarton, thomie, carter
Differential Revision: https://phabricator.haskell.org/D4784
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This pulls parts of Joachim Breitner's ghc-heap-view library inside GHC.
The bits added are the C hooks into the RTS and a basic Haskell wrapper
to these C hooks. The main reason for these to be added to GHC proper
is that the code needs to be kept in sync with the closure types
defined by the RTS. It is expected that the version of HeapView shipped
with GHC will always work with that version of GHC and that extra
functionality can be layered on top with a library like ghc-heap-view
distributed via Hackage.
Test Plan: validate
Reviewers: simonmar, hvr, nomeata, austin, Phyx, bgamari, erikd
Reviewed By: bgamari
Subscribers: carter, patrickdoc, tmcgilchrist, rwbarton, thomie
Differential Revision: https://phabricator.haskell.org/D3055
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