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  1. 20 Nov, 2017 6 commits
  3. 19 Nov, 2017 1 commit
  5. 18 Nov, 2017 6 commits
    • Andrew Martin's avatar
      base: Make documentation of atomically more accurate · b8e324a4
      Andrew Martin authored
      b8e324a4
    • niteria's avatar
      Fix T4437 · 912a72d2
      niteria authored 
      This test tests if the flags are in sync between GHC and
Cabal.
After b0b80e90 'Implement the basics of hex floating point
literals' landed, the Cabal side had to be updated. That
has been done, and 835d8ddb 'GHC.Prim use virtual-modules'
brought the Cabal submodule up to date.
      912a72d2
    • Moritz Angermann's avatar
      Fix rts.cabal.in · 74070bbb
      Moritz Angermann authored 
      Overlap with commit 2f463873, resulted in `hooks/LongGCSync.c`
missing from the `rts.cabal.in` file.  As the `rts.cabal` file is only
used by hadrian, this did not trigger with the make base build
system which can do globbing.

Also ignore the `rts.cabal` file, as it's generated by configure
from the `rts.cabal.in`.
      74070bbb
    • Moritz Angermann's avatar
      Relocatable GHC · bb11a2d9
      Moritz Angermann authored 
      GHC and the binary distribution that's produced is
not relocatable outside of Windows.  This diff tries to
address this for at least Linux and macOS.

Reviewers: austin, hvr, bgamari, erikd, goldfire, Phyx

Reviewed By: bgamari

Subscribers: duog, rwbarton, thomie, erikd

Differential Revision: https://phabricator.haskell.org/D4121
      bb11a2d9
    • Moritz Angermann's avatar
      GHC.Prim use virtual-modules · 835d8ddb
      Moritz Angermann authored 
      Stop the GHC.Prim madness with `virtual-module` support from cabal.
Needs https://github.com/haskell/cabal/pull/4875.

Bumps submodule libraries/Cabal to include the necessary logic for `virtual-module`.

Reviewers: bgamari

Reviewed By: bgamari

Subscribers: rwbarton, thomie

Differential Revision: https://phabricator.haskell.org/D4179
      835d8ddb
    • Moritz Angermann's avatar
      Adds -ghc-version flag to ghc. · 12a74444
      Moritz Angermann authored 
      Summary:
When building the rts with ghc (e.g. using ghc as a c compiler), ghc's
"Value Add"[1] is, it includes adding `-include /path/to/ghcversion.h`.  For
this it looksup the rts package in the package database, which--if
empty--fails.  Thus to allow compiling C files with GHC, we add the
`-ghc-version` flag, which takes the path to the `ghcversion.h` file.

A `-no-ghc-version` flag was omitted, as at that point it becomes
questionable why one would use ghc to compile c if one doesn't
any of the added value.

--

[1] from `compiler/main/DriverPipeline.hs`
>        -- add package include paths even if we're just compiling .c
>        -- files; this is the Value Add(TM) that using ghc instead of
>        -- gcc gives you :)

Reviewers: bgamari, geekosaur, austin

Reviewed By: bgamari

Subscribers: rwbarton, thomie

Differential Revision: https://phabricator.haskell.org/D4135
      12a74444
  7. 16 Nov, 2017 3 commits
    • Ben Gamari's avatar
      configure: Fix incorrect quoting · c7297342
      Ben Gamari authored 
      This is a regression affecting Windows introduced by
3bed4aa7.
      c7297342
    • Ben Gamari's avatar
      Document -ddump-timings · 2da7813b
      Ben Gamari authored
      2da7813b
    • Simon Marlow's avatar
      Detect overly long GC sync · 2f463873
      Simon Marlow authored 
      Summary:
GC sync is the time between a GC being intiated and all the mutator
threads finally stopping so that the GC can start. Problems that cause
the GC sync to be delayed are hard to find and can cause dramatic
slowdowns for heavily parallel programs.

The new flag --long-gc-sync=<time> helps by emitting a warning and
calling a user-overridable hook when the GC sync time exceeds the
specified threshold. A debugger can be used to set a breakpoint when
this happens and inspect the stacks of threads to find the culprit.

Test Plan:
```
$ ./inplace/bin/ghc-stage2 +RTS --long-gc-sync=0.0000001 -S
    Alloc    Copied     Live     GC     GC      TOT      TOT  Page Flts
    bytes     bytes     bytes   user   elap     user     elap
  1135856     51144    153736  0.000  0.000    0.002    0.002    0    0  (Gen:  0)
  1034760     94704    188752  0.000  0.000    0.002    0.002    0    0  (Gen:  0)
  1038888    134832    228888  0.009  0.009    0.011    0.011    0    0  (Gen:  1)
  1025288     90128    235184  0.000  0.000    0.012    0.012    0    0  (Gen:  0)
  1049088    130080    333984  0.000  0.000    0.013    0.013    0    0  (Gen:  0)
Warning: waited 0us for GC sync
  1034424     73360    331976  0.000  0.000    0.013    0.013    0    0  (Gen:  0)
```

Also tested on a real production problem.

Reviewers: niteria, bgamari, erikd

Subscribers: rwbarton, thomie

Differential Revision: https://phabricator.haskell.org/D4193
      2f463873
  9. 15 Nov, 2017 14 commits
  11. 14 Nov, 2017 3 commits
  13. 11 Nov, 2017 6 commits
  15. 10 Nov, 2017 1 commit