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  1. 08 Jan, 2018 1 commit
    • Simon Marlow's avatar
      Improve accuracy of get/setAllocationCounter · a1a689dd
      Simon Marlow authored
      Summary:
      get/setAllocationCounter didn't take into account allocations in the
      current block. This was known at the time, but it turns out to be
      important to have more accuracy when using these in a fine-grained
      way.
      
      Test Plan:
      New unit test to test incrementally larger allocaitons.  Before I got
      results like this:
      
      ```
      +0
      +0
      +0
      +0
      +0
      +4096
      +0
      +0
      +0
      +0
      +0
      +4064
      +0
      +0
      +4088
      +4056
      +0
      +0
      +0
      +4088
      +4096
      +4056
      +4096
      ```
      
      Notice how the results aren't always monotonically increasing.  After
      this patch:
      
      ```
      +344
      +416
      +488
      +560
      +632
      +704
      +776
      +848
      +920
      +992
      +1064
      +1136
      +1208
      +1280
      +1352
      +1424
      +1496
      +1568
      +1640
      +1712
      +1784
      +1856
      +1928
      +2000
      +2072
      +2144
      ```
      
      Reviewers: niteria, bgamari, hvr, erikd
      
      Subscribers: rwbarton, thomie, carter
      
      Differential Revision: https://phabricator.haskell.org/D4288
      a1a689dd
  2. 02 Jan, 2018 1 commit
    • Tamar Christina's avatar
      Windows: fix all failing tests. · 27b7b4db
      Tamar Christina authored
      This makes the testsuite pass clean on Windows again.
      It also fixes the `libstdc++-6.dll` error harbormaster
      was showing.
      
      I'm marking some tests as isolated tests to reduce their
      flakiness (mostly concurrency tests) when the test system
      is under heavy load.
      
      Updates process submodule.
      
      Test Plan: ./validate
      
      Reviewers: hvr, bgamari, erikd, simonmar
      
      Reviewed By: bgamari
      
      Subscribers: rwbarton, thomie, carter
      
      Differential Revision: https://phabricator.haskell.org/D4277
      27b7b4db
  3. 18 Dec, 2017 1 commit
  4. 27 Nov, 2017 1 commit
  5. 22 Oct, 2017 1 commit
    • Tamar Christina's avatar
      Add stack traces on crashes on Windows · 99c61e22
      Tamar Christina authored
      Summary:
      This patch adds the ability to generate stack traces on crashes for Windows.
      When running in the interpreter this attempts to use symbol information from
      the interpreter and information we know about the loaded object files to
      resolve addresses to symbols.
      
      When running compiled it doesn't have this information and then defaults
      to using symbol information from PDB files. Which for now means only
      files compiled with ICC or MSVC will show traces compiled.
      
      But I have a future patch that may address this shortcoming.
      
      Also since I don't know how to walk a pure haskell stack, I can for now
      only show the last entry. I'm hoping to figure out how Apply.cmm works to
      be able to walk the stalk and give more entries for pure haskell code.
      
      In GHCi
      
      ```
      $ echo main | inplace/bin/ghc-stage2.exe --interactive ./testsuite/tests/rts/derefnull.hs
      GHCi, version 8.3.20170830: http://www.haskell.org/ghc/  :? for help
      Ok, 1 module loaded.
      Prelude Main>
      Access violation in generated code when reading 0x0
      
       Attempting to reconstruct a stack trace...
      
         Frame        Code address
       * 0x77cde10    0xc370229 E:\..\base\dist-install\build\HSbase-4.10.0.0.o+0x190031
                       (base_ForeignziStorable_zdfStorableInt4_info+0x3f)
      ```
      
      and compiled
      
      ```
      Access violation in generated code when reading 0x0
      
       Attempting to reconstruct a stack trace...
      
         Frame        Code address
       * 0xf0dbd0     0x40bb01 E:\..\rts\derefnull.run\derefnull.exe+0xbb01
      ```
      
      Test Plan: ./validate
      
      Reviewers: austin, hvr, bgamari, erikd, simonmar
      
      Reviewed By: bgamari
      
      Subscribers: rwbarton, thomie
      
      Differential Revision: https://phabricator.haskell.org/D3913
      99c61e22
  6. 28 Jul, 2017 1 commit
    • Andreas Klebinger's avatar
      Add rtsopts ignore and ignoreAll. · d75bba85
      Andreas Klebinger authored
      These ignore commandline arguments for ignore and commandline as well as
      GHCRTS arguments for ignoreAll. Passing RTS flags given on the command
      line along to the program by simply skipping processing of these flags
      by the RTS.
      
      This fixes #12870.
      
      Test Plan: ./validate
      
      Reviewers: austin, hvr, bgamari, erikd, simonmar
      
      Reviewed By: simonmar
      
      Subscribers: Phyx, rwbarton, thomie
      
      GHC Trac Issues: #12870
      
      Differential Revision: https://phabricator.haskell.org/D3740
      d75bba85
  7. 27 Jul, 2017 1 commit
    • Andreas Klebinger's avatar
      Initialize hs_init with UTF8 encoded arguments on Windows. · 7af0b906
      Andreas Klebinger authored
      Summary:
      Get utf8 encoded arguments before we call hs_init and use them
      instead of ignoring hs_init arguments. This reduces differing
      behaviour of the RTS between windows and linux and simplifies
      the code involved.
      
      A few testcases were changed to expect the same result on windows
      as on linux after the changes.
      
      This fixes #13940.
      
      Test Plan: ./validate
      
      Reviewers: austin, hvr, bgamari, erikd, simonmar, Phyx
      
      Subscribers: Phyx, rwbarton, thomie
      
      GHC Trac Issues: #13940
      
      Differential Revision: https://phabricator.haskell.org/D3739
      7af0b906
  8. 03 Jul, 2017 1 commit
  9. 29 Jun, 2017 1 commit
    • Ben Gamari's avatar
      configure: Coerce gcc to use $LD instead of system default · 625143f4
      Ben Gamari authored
      The configure script will now try to coerce gcc to use the linker
      pointed to by $LD instead of the system default (typically bfd ld).
      Moreover, we now check for `ld.gold` and `ld.lld` before trying `ld`.
      
      The previous behavior can be reverted to by using the new
      --disable-ld-override flag.
      
      On my machine gold seems to trigger an apparent infelicity in
      constructor behavior, causing T5435_asm to fail. I've opened #13883 to
      record this issue and have accepted the questionable constructor
      ordering for the time being.
      
      Test Plan: Validate with `config_args='--enable-ld-override'`
      
      Reviewers: austin, hvr, simonmar
      
      Subscribers: duog, nh2, rwbarton, thomie, erikd, snowleopard
      
      GHC Trac Issues: #13541, #13810, #13883
      
      Differential Revision: https://phabricator.haskell.org/D3449
      625143f4
  10. 16 Jun, 2017 1 commit
  11. 03 Apr, 2017 2 commits
  12. 02 Apr, 2017 1 commit
    • Simon Marlow's avatar
      Report heap overflow in the same way as stack overflow · 61ba4518
      Simon Marlow authored
      Now that we throw an exception for heap overflow, we should only print
      the heap overflow message in the main thread when the HeapOverflow
      exception is caught, rather than as a side effect in the GC.
      
      Stack overflows were already done this way, I just made heap overflow
      consistent with stack overflow, and did some related cleanup.
      
      Fixes broken T2592(profasm) which was reporting the heap overflow
      message twice (you would only notice when building with profiling
      libs enabled).
      
      Test Plan: validate
      
      Reviewers: bgamari, niteria, austin, DemiMarie, hvr, erikd
      
      Reviewed By: bgamari
      
      Subscribers: rwbarton, thomie
      
      Differential Revision: https://phabricator.haskell.org/D3394
      61ba4518
  13. 26 Feb, 2017 3 commits
    • rwbarton's avatar
      tests: remove extra_files.py (#12223) · 3415bcaa
      rwbarton authored
      The script I used is included as testsuite/driver/kill_extra_files.py,
      though at this point it is for mostly historical interest.
      
      Some of the tests in libraries/hpc relied on extra_files.py, so this
      commit includes an update to that submodule.
      
      One test in libraries/process also relies on extra_files.py, but we
      cannot update that submodule so easily, so for now we special-case it
      in the test driver.
      3415bcaa
    • rwbarton's avatar
      tests: manually move some extra_files into *.T files · 98119f5a
      rwbarton authored
      Some of the *.T files were in libraries/hpc, so this contains an
      update to that submodule.
      98119f5a
    • rwbarton's avatar
      Manually move extra_files for tests T9579_* · 35b5790e
      rwbarton authored
      Summary: My script won't understand this.
      
      Test Plan: validate
      
      Reviewers: austin, bgamari, simonmar
      
      Subscribers: thomie
      
      Differential Revision: https://phabricator.haskell.org/D3210
      35b5790e
  14. 23 Feb, 2017 1 commit
  15. 01 Feb, 2017 1 commit
  16. 22 Jan, 2017 1 commit
    • thomie's avatar
      Remove clean_cmd and extra_clean usage from .T files · 5d38fb69
      thomie authored
      The `clean_cmd` and `extra_clean` setup functions don't do anything.
      Remove them from .T files.
      
      Created using https://github.com/thomie/refactor-ghc-testsuite. This
      diff is a test for the .T-file parser/processor/pretty-printer in that
      repository.
      
          find . -name '*.T' -exec ~/refactor-ghc-testsuite/Main "{}" \;
      
      Tests containing inline comments or multiline strings are not modified.
      
      Preparation for #12223.
      
      Test Plan: Harbormaster
      
      Reviewers: austin, hvr, simonmar, mpickering, bgamari
      
      Reviewed By: mpickering
      
      Subscribers: mpickering
      
      Differential Revision: https://phabricator.haskell.org/D3000
      
      GHC Trac Issues: #12223
      5d38fb69
  17. 16 Jan, 2017 1 commit
    • Tamar Christina's avatar
      Add missing test files for T13082. · 4bfe3d4d
      Tamar Christina authored
      Summary:
      Add two missing test files for T13082.
      The reason they were missing is because the .gitignore
      contains a very harmful and broad wildcard `foo*`. Why?
      
      Test Plan: make test TEST="T13082_good T13082_fail"
      
      Reviewers: austin, bgamari, simonmar, erikd
      
      Reviewed By: erikd
      
      Subscribers: thomie
      
      Differential Revision: https://phabricator.haskell.org/D2981
      
      GHC Trac Issues: #13082
      4bfe3d4d
  18. 15 Jan, 2017 2 commits
    • Ryan Scott's avatar
      Improve access violation reporting on Windows · c13151e5
      Ryan Scott authored
      Summary:
      This patch is courtesy of @awson.
      
      Currently, whenever GHC catches a segfault on Windows, it simply reports the
      somewhat uninformative message
      `Segmentation fault/access violation in generated code`. This patch adds to
      the message the type of violation (read/write/dep) and location information,
      which should help debugging segfaults in the future.
      
      Fixes #13108.
      
      Test Plan: Build on Windows
      
      Reviewers: austin, erikd, bgamari, simonmar, Phyx
      
      Reviewed By: bgamari, Phyx
      
      Subscribers: awson, thomie, #ghc_windows_task_force
      
      Differential Revision: https://phabricator.haskell.org/D2969
      
      GHC Trac Issues: #13108
      c13151e5
    • Tamar Christina's avatar
      Fix abort and import lib search on Windows · 331f88d0
      Tamar Christina authored
      Summary:
      Apparently `sysErrorBelch` doesn't terminate the program anymore making
      previously unreachable code now execute. If a dll is not found the error
      message we return needs to be a heap value.
      
      Secondly also allow the pattern `lib<name>` to be allowed for finding an
      import library with the name `lib<name>.dll.a`.
      
      Test Plan: ./validate, new tests T13082_good and T13082_fail
      
      Reviewers: austin, RyanGlScott, hvr, erikd, simonmar, bgamari
      
      Reviewed By: RyanGlScott, bgamari
      
      Subscribers: thomie, #ghc_windows_task_force
      
      Differential Revision: https://phabricator.haskell.org/D2941
      
      GHC Trac Issues: #13082
      331f88d0
  19. 10 Jan, 2017 1 commit
  20. 27 Dec, 2016 1 commit
    • Peter Trommler's avatar
      Testsuite: Skip failing tests on PowerPC 64-bit · 4dec7d19
      Peter Trommler authored
      The Power ISA says the result of a division by zero is undefined.  So
      ignore stdout on PowerPC 64-bit systems.
      
      Disable ext-interp tests on 64-bit PowerPC.  We don't have support for
      PowerPC 64-bit ELF in the RTS linker, which is needed for the external
      interpreter.
      
      Test Plan: ./validate
      
      Reviewers: austin, simonmar, hvr, erikd, bgamari
      
      Reviewed By: bgamari
      
      Subscribers: thomie
      
      Differential Revision: https://phabricator.haskell.org/D2782
      4dec7d19
  21. 18 Dec, 2016 3 commits
  22. 15 Dec, 2016 2 commits
    • Ben Gamari's avatar
      array: Check for integer overflow during allocation · cd4b202f
      Ben Gamari authored
      This fixes #229, where creating a new array can cause array to allocate
      a smaller array than it thinks it allocates due to integer overflow,
      resulting in memory unsafety.
      
      This breaks the rts/overflow1 test, which relied on this unchecked
      overflow. I fix it by reimplementing the test in terms of newByteArray#
      directly.
      
      Updates the array submodule.
      cd4b202f
    • Tamar Christina's avatar
      Reset FPU precision back to MSVCRT defaults · 6f7d8279
      Tamar Christina authored
      Mingw-w64 does a stupid thing. They set the FPU precision to extended
      mode by default.  The reasoning is that it's for compatibility with GNU
      Linux ported libraries. However the problem is this is incompatible with
      the standard Windows double precision mode.  In fact, if we create a new
      OS thread then Windows will reset the FPU to double precision mode.  So
      we end up with a weird state where the main thread by default has a
      different precision than any child threads.
      
      Test Plan: ./validate new test T7289
      
      Reviewers: simonmar, austin, bgamari, erikd
      
      Reviewed By: simonmar
      
      Subscribers: thomie, #ghc_windows_task_force
      
      Differential Revision: https://phabricator.haskell.org/D2819
      
      GHC Trac Issues: #7289
      6f7d8279
  23. 13 Dec, 2016 1 commit
  24. 12 Dec, 2016 1 commit
  25. 10 Dec, 2016 1 commit
  26. 09 Dec, 2016 1 commit
  27. 02 Dec, 2016 1 commit
    • Alexander Vershilov's avatar
      Install toplevel handler inside fork. · 895a131f
      Alexander Vershilov authored
      When rts is forked it doesn't update toplevel handler, so UserInterrupt
      exception is sent to Thread1 that doesn't exist in forked process.
      
      We install toplevel handler when fork so signal will be delivered to the
      new main thread.
      
      Fixes #12903
      
      Reviewers: simonmar, austin, erikd, bgamari
      
      Reviewed By: bgamari
      
      Subscribers: thomie
      
      Differential Revision: https://phabricator.haskell.org/D2770
      
      GHC Trac Issues: #12903
      895a131f
  28. 30 Nov, 2016 1 commit
    • Tamar Christina's avatar
      Update test output for Windows · dd9ba503
      Tamar Christina authored
      Following D2684 these two tests need to be updated:
      
       * T7037: timeout.exe now waits until all processes are finished.
                this makes T7037 reliable. So enabled.
      
       * T876: Unknown reason, allocations are much lower than before.
      
      Test Plan: ./validate
      
      Reviewers: austin, simonmar, bgamari
      
      Reviewed By: bgamari
      
      Subscribers: thomie, #ghc_windows_task_force
      
      Differential Revision: https://phabricator.haskell.org/D2759
      
      GHC Trac Issues: #12725, #12004
      dd9ba503
  29. 29 Nov, 2016 1 commit
    • Sylvain Henry's avatar
      Replace -fshow-source-paths with -fhide-source-paths · 3ec85630
      Sylvain Henry authored
      This patch reverts the change introduced with
      587dcccf and restores the previous
      default output of GHC (i.e., show source path and object path for each
      compiled module).
      
      The -fhide-source-paths flag can be used to hide these paths and reduce
      the line
      noise.
      
      Reviewers: gracjan, nomeata, austin, bgamari, simonmar, hvr
      
      Reviewed By: hvr
      
      Subscribers: thomie
      
      Differential Revision: https://phabricator.haskell.org/D2728
      
      GHC Trac Issues: #12851
      3ec85630
  30. 12 Nov, 2016 1 commit
  31. 31 Oct, 2016 1 commit
    • Tamar Christina's avatar
      Align GHCi's library search order more closely with LDs · 795be0ea
      Tamar Christina authored
      Summary:
      Given a static library and an import library in the same folder. e.g.
      
      ```
      libfoo.a
      libfoo.dll.a
      ```
      
      running `ghci -lfoo` we should prefer the import library `libfoo.dll.a`
      over `libfoo.a` because we prefer having to just load the DLL.
      And not having to do any linking.
      
      This also more closely emulated the behaviour of LD, which has a search order of
      
      ```
      libxxx.dll.a
      xxx.dll.a
      libxxx.a
      cygxxx.dll (*)
      libxxx.dll
      xxx.dll
      ```
      
      Test Plan: ./validate
      
      Reviewers: RyanGlScott, austin, hvr, bgamari, erikd, simonmar
      
      Reviewed By: RyanGlScott
      
      Subscribers: thomie, #ghc_windows_task_force
      
      Differential Revision: https://phabricator.haskell.org/D2651
      
      GHC Trac Issues: #12771
      795be0ea
  32. 18 Oct, 2016 1 commit
  33. 17 Oct, 2016 1 commit