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* rts/posix/Itimer.c: Handle EINTR when reading timerfdErik de Castro Lopo2016-03-311-4/+9
| | | | | | | | | | | | | | | Commit 8626d76a72 added checking of the return value when reading from the `timer_fd` and calling `sysErrorBelch` to print a warning message. However some error causes (like EINTR) are benign and should just be ignored. Test Plan: validate Reviewers: hvr, austin, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2040
* Remove all mentions of IND_OLDGEN outside of docs/rtsJoachim Breitner2016-03-291-1/+1
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* cleanup POSIX/XOPEN defines for switch to C99Karel Gardas2016-03-291-16/+12
| | | | | | | | | | | | | | | | | | | | Summary: This patch cleans up various POSIX and XOPEN defines. We aim to switch to C99 solely and for this the lowest version of supported POSIX/XOPEN is: _XOPEN_SOURCE 600 _POSIX_C_SOURCE 200112L Test Plan: tested on Solaris 11 and OpenBSD 5.9. Should be good also on Solaris 10, FreeBSD and DragonFlyBSD. We need to test on Mac OS X, Linux and MinGW Reviewers: austin, bgamari, erikd, hvr Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2056
* fix compilation failure on Solaris 11Karel Gardas2016-03-291-1/+1
| | | | | | | | | | | | | Summary: Solaris is quite picky about C and POSIX version combination. For recent change to C99 we need to switch _XPG6 on which means _XOPEN_SOURCE should be defined to 600 Reviewers: austin, bgamari, erikd Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2053
* Scrap DEC OSF/1 supportHerbert Valerio Riedel2016-03-281-11/+0
| | | | | | | | | | | | | DEC OSF/1 (aka Tru64 UNIX) has been discontinued a few years ago already[1]. This removes the undoubtedly bitrotten support for `OSOsf3 :: OS` from GHC's code-base. Support for `ArchAlpha :: Arch` may be removed at some later point, as there may still be users out there running a more or less recent Linux/alpha distribution on their more-than-a-decade old Alpha hardware... [1]: https://en.wikipedia.org/wiki/Tru64_UNIX
* Scrap IRIX supportHerbert Valerio Riedel2016-03-282-17/+4
| | | | | | | | | | | | | | | | Long time ago, IRIX was way ahead of its time in the last century with its SMP capabilities of scaling up to 1024 processors and other features such as XFS or OpenGL that originated in IRIX and live on to this day in other operating systems. However, IRIX's last software update was in 2006 and support ended around 2013 according to [1], so it's considered an extinct platform by now. So this commit message is effectively an obituary for GHC's IRIX support. R.I.P. IRIX [1]: https://en.wikipedia.org/wiki/IRIX
* Remove now pointless INLINE_ME macroHerbert Valerio Riedel2016-03-271-1/+1
| | | | | | | | | At some point there may have been a reason for the `INLINE_ME` macro, but not anymore... Reviewed By: austin Differential Revision: https://phabricator.haskell.org/D2041
* Add NCG support for AIX/ppc32Herbert Valerio Riedel2016-03-243-7/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This extends the previous work to revive the unregisterised GHC build for AIX/ppc32. Strictly speaking, AIX runs on POWER4 (and later) hardware, but the PPC32 instructions implemented in the PPC NCG represent a compatible subset of the POWER4 ISA. IBM AIX follows the PowerOpen ABI (and shares many similiarites with the Linux PPC64 ELF V1 NCG backend) but uses the rather limited XCOFF format (compared to ELF). This doesn't support dynamic libraries yet. A major limiting factor is that the AIX assembler does not support the `@ha`/`@l` relocation types nor the ha16()/lo16() functions Darwin's assembler supports. Therefore we need to avoid emitting those. In case of numeric literals we simply compute the functions ourselves, while for labels we have to use local TOCs and hope everything fits into a 16bit offset (for ppc32 this gives us at most 16384 entries per TOC section, which is enough to compile GHC). Another issue is that XCOFF doesn't seem to have a relocation type for label-differences, and therefore the label-differences placed into tables-next-to-code can't be relocated, but the linker may rearrange different sections, so we need to place all read-only sections into the same `.text[PR]` section to workaround this. Finally, the PowerOpen ABI distinguishes between function-descriptors and actualy entry-point addresses. For AIX we need to be specific when emitting assembler code whether we want the address of the function descriptor `printf`) or for the entry-point (`.printf`). So we let the asm pretty-printer prefix a dot to all emitted subroutine calls (i.e. `BL`) on AIX only. For now, STG routines' entry-point labels are not prefixed by a label and don't have any associated function-descriptor. Reviewers: austin, trommler, erikd, bgamari Reviewed By: trommler, erikd, bgamari Differential Revision: https://phabricator.haskell.org/D2019
* Avoid local label syntax for assembler on AIXHerbert Valerio Riedel2016-03-241-5/+9
| | | | | | | | | | | | | Unfortunately (for inline `__asm__()` uses), IBM's `as` doesn't seem to support local labels[1] like GNU `as` does so we need to workaround this when on AIX. [1]: https://sourceware.org/binutils/docs/as/Symbol-Names.html#Symbol-Names Turns out this also addresses the long-standing bug #485 Reviewed By: bgamari, trommler Differential Revision: https://phabricator.haskell.org/D2029
* Revert "Various ticky-related work"Ben Gamari2016-03-241-1/+1
| | | | | This reverts commit 6c2c853b11fe25c106469da7b105e2be596c17de which was supposed to be merged as individual commits.
* Various ticky-related workJoachim Breitner2016-03-241-1/+1
| | | | | | | | | | | | | | | | | | this Diff contains small, self-contained changes as I work towards fixing #10613. It is mostly created to let harbormaster do its job, but feedback is welcome as well. Please do not merge this via arc; I’d like to push the individual patches as layed out here. I might push mostly trivial ones even without review, as long as the build passes. Reviewers: austin, bgamari Reviewed By: bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2014
* Close ticky profiling file stream after printing (#9405)Flaviu Andrei Csernik2016-03-242-1/+6
| | | | | | | | | | | | | | Test Plan: T9405 Reviewers: simonmar, austin, bgamari Reviewed By: simonmar, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2008 GHC Trac Issues: #9405
* stgMallocBytes: Tolerate malloc(0) returning a NULL ptrHerbert Valerio Riedel2016-03-211-0/+13
| | | | | | | | | | | | | | This is valid behaviour for `malloc()` according to ISO C99 and POSIX, and there's at least one operating system (AIX) which actually does return NULL for 0-sized allocations. The `createAdjustor()` routine is currently the only known use-site of `stgMallocBytes` which may call `stgMallocBytes()` requesting a 0-size allocation. Reviewed By: bgamari, austin Differential Revision: https://phabricator.haskell.org/D2022
* prof: Fix heap census for large ARR_WORDS (#11627)Jason Eisenberg2016-03-201-0/+14
| | | | | | | | | | | | | | | | | The heap census now handles large ARR_WORDS objects which have been shrunk by shrinkMutableByteArray# or resizeMutableByteArray#. Test Plan: ./validate && make test WAY=profasm Reviewers: hvr, bgamari, austin, thomie Reviewed By: thomie Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2005 GHC Trac Issues: #11627
* rts: fix threadStackUnderflow type in cmmSergei Trofimovich2016-03-113-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | stg_stack_underflow_frame had an incorrect call of C function 'threadStackUnderflow': ("ptr" ret_off) = foreign "C" threadStackUnderflow( MyCapability(), CurrentTSO); Which means it's prototype is: void * (*) (W_, void*); While real prototype is: W_ (*) (Capability *cap, StgTSO *tso); The fix is simple. Fix type annotations: (ret_off) = foreign "C" threadStackUnderflow( MyCapability() "ptr", CurrentTSO "ptr"); Noticed when debugged T9045 test failure on m68k target which distincts between pointer and non pointer return types (uses different registers) While at it noticed and fixed return types for 'throwTo' and 'findSpark'. Trac #11395 Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rtx/posix/Itimer.c: Handle return value of `read`Erik de Castro Lopo2016-03-111-1/+2
| | | | | | | | | | | | | | | | | | On Ubuntu libc's `read` function is marked with attribute `warn_unused_result` which was causing build failures on Harbourmaster. Test Plan: validate on Harbourmaster Reviewers: austin, hvr, bgamari Reviewed By: hvr, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1993 GHC Trac Issues: #11697
* Reduce fragmentation from m32_allocatorBartosz Nitka2016-03-071-4/+24
| | | | | | | | | | | | | | | | | | | | This patch brings in two improvements: a) m32_allocator will now reuse the pages that are no longer used by anyone else. b) m32_allocator will preallocate the "filling" area, so that the pages it allocates end up as a big chunk instead of being allocated on demand in random places, fragmenting the precious lower 2G address space. Test Plan: testsuite - 3 tests failing with substTy asserts Reviewers: ezyang, austin, bgamari, erikd, hsyl20, simonmar Reviewed By: hsyl20, simonmar Subscribers: hvr, thomie Differential Revision: https://phabricator.haskell.org/D1976
* rts/timer: use timerfd_* on Linux instead of alarm signalsSylvain HENRY2016-03-051-11/+80
| | | | | | | | | | | | Reviewers: erikd, simonmar, austin, bgamari Reviewed By: simonmar, bgamari Subscribers: hvr, thomie Differential Revision: https://phabricator.haskell.org/D1947 GHC Trac Issues: #10840
* rts: drop unused global 'blackhole_queue'Sergei Trofimovich2016-02-272-2/+0
| | | | | | | | | | | | | | | | | | | | | | Commit 5d52d9b64c21dcf77849866584744722f8121389 removed global 'blackhole_queue' in favour of new mechanism: when TSO hits blackhole TSO blocks waiting for 'MessgaeBlackhole' delivery. Patch removed unused global and updates stale comments. Noticed by Yuras Shumovich. Signed-off-by: Sergei Trofimovich <siarheit@google.com> Test Plan: build test Reviewers: simonmar, austin, Yuras, bgamari Reviewed By: Yuras, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1953
* Typos in comments, etc.Gabor Greif2016-02-261-2/+2
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* testsuite: mark tests broken on powerpc64Peter Trommler2016-02-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following tests fail on powerpc64 and have a ticket. Mark those tests as expect_broken. Here are the details: The PowerPC native code generator does not support DWARF debug information. This is tracked in ticket #11261. Mark the respective tests broken on powerpc64. testsuite: mark print022 broken on powerpc64 Ticket #11262 tracks difference in stdout for print022. testsuite: mark recomp015 broken on powerpc64 testsuite: mark recomp011 broken on powerpc64 This is tracked as ticket #11323 and #11260. testsuite: mark linker tests broken on powerpc64 Ticket #11259 tracks tests failing because there is no RTS linker on powerpc64. Test Plan: validate Reviewers: erikd, austin, bgamari Reviewed By: bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1928 GHC Trac Issues: #11259, #11260, #11261, #11262, #11323
* rts: mark 'shutdownCapability' as staticSergei Trofimovich2016-02-072-12/+2
| | | | | | | | | | Noticed by uselex.rb: last_free_capability: [R]: exported from: ./rts/dist/build/Capability.o shutdownCapability: [R]: exported from: ./rts/dist/build/Capability.o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: drop unused 'traceEventThreadRunnable'Sergei Trofimovich2016-02-071-11/+0
| | | | | | | | | | | | | | | | Not used since: commit f361281c89fbce42865d8b8b27b0957205366186 Author: Simon Marlow <marlowsd@gmail.com> Date: Wed Dec 7 11:32:35 2011 +0000 Do not emit the THREAD_RUNNABLE event; it has no useful semantic content Noticed by uselex.rb: traceEventThreadRunnable: [R]: exported from: ./rts/dist/build/Inlines.o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: mark 'ccs_mutex' and 'prof_arena' as staticSergei Trofimovich2016-02-071-2/+2
| | | | | | | | | | Noticed by uselex.rb: ccs_mutex: [R]: exported from: ./rts/dist/build/Profiling.thr_p_o prof_arena: [R]: exported from: ./rts/dist/build/Profiling.p_o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: mark 'blockedThrowTo' as staticSergei Trofimovich2016-02-072-3/+3
| | | | | | | | Noticed by uselex.rb: blockedThrowTo: [R]: exported from: ./rts/dist/build/RaiseAsync.o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: drop unused 'traverseAllRetainerSet'Sergei Trofimovich2016-02-072-27/+3
| | | | | | | | | | | | While at is mark 'printRetainer' as 'static'. Noticed by uselex.rb: printRetainer: [R]: exported from: ./rts/dist/build/RetainerSet.p_o traverseAllRetainerSet: [R]: exported from: ./rts/dist/build/RetainerSet.p_o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: mark 'setProgName' as staticSergei Trofimovich2016-02-072-1/+1
| | | | | | | | Noticed by uselex.rb: setProgName: [R]: exported from: ./rts/dist/build/RtsFlags.o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: mark 'removeFromRunQueue' as staticSergei Trofimovich2016-02-072-3/+2
| | | | | | | | Noticed by uselex.rb: removeFromRunQueue: [R]: exported from: ./rts/dist/build/Schedule.o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: drop unused mut_user_time_during_heap_censusSergei Trofimovich2016-02-072-11/+1
| | | | | | | | | | | | Was never used looking at history available in git. While at it marked 'mut_user_time_during_RP' as 'static'. Noticed by uselex.rb: mut_user_time_during_heap_census: [R]: exported from: ./rts/dist/build/Stats.p_o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: mark 'wakeBlockingQueue' as staticSergei Trofimovich2016-02-072-2/+1
| | | | | | | | Noticed by uselex.rb: wakeBlockingQueue: [R]: exported from: ./rts/dist/build/Threads.o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: drop unused getThreadCPUTimeSergei Trofimovich2016-02-073-44/+0
| | | | | | | | | | | | | | | | Use of this helper function was removed in: commit 3c9fc104337a142fe4f375d30d7a6b81d55a70c1 Author: Brian Brooks <brooks.brian@gmail.com> Date: Thu Jul 10 02:55:33 2014 -0500 Avoid unnecessary clock_gettime() syscalls in GC stats. Noticed by uselex.rb: getThreadCPUTime: [R]: exported from: ./rts/dist/build/posix/GetTime.p_o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: mark 'copied' as staticSergei Trofimovich2016-02-072-3/+1
| | | | | | | | Noticed by uselex.rb: copied: [R]: exported from: ./rts/dist/build/sm/GC.o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: mark scavenge_mutable_list as staticSergei Trofimovich2016-02-072-3/+1
| | | | | | | | | | Noticed by uselex.rb: scavenge_mutable_list: [R]: exported from: ./rts/dist/build/sm/Scav.o scavenge_mutable_list1: [R]: exported from: ./rts/dist/build/sm/Scav.thr_o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* rts: drop unused calcLiveBlocks, calcLiveWordsSergei Trofimovich2016-02-072-29/+0
| | | | | | | | | | | | | | | Use of these helper functions was removed by commit 18896fa2b06844407fd1e0d3f85cd3db97a96ff4 Author: Simon Marlow <marlowsd@gmail.com> Date: Wed Feb 2 15:49:55 2011 +0000 Noticed by uselex.rb: calcLiveBlocks: [R]: exported from: ./rts/dist/build/sm/Storage.o calcLiveWords: [R]: exported from: ./rts/dist/build/sm/Storage.o Signed-off-by: Sergei Trofimovich <siarheit@google.com>
* Fix Windows build after D1874Tamar Christina2016-02-021-2/+24
| | | | | | | | | | | | | | Windows uses wchar_t* for paths. The code committed won't compile for Windows as the types are incorrect and the types in the branches of the ternary operator aren't consistent. Test Plan: ./validate --fast Reviewers: austin, rwbarton, erikd, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1878
* Fix runtime linker error message when old symbol had no ownerReid Barton2016-02-011-0/+1
| | | | | | | | | | | | Test Plan: Actually run validate. This fixes test linker_error3. Reviewers: austin, erikd, bgamari Reviewed By: erikd, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1874
* Fix LOOKS_LIKE_PTR for 64-bit platformsReid Barton2016-02-011-1/+1
| | | | | | | | | | | | | | | | | | | | | I'm not sure what this is used for. But it won't correctly detect RTS-filled slop on 64-bit platforms. Test Plan: Untested. But I did verify that unsigned long x = (unsigned long)0xaaaaaaaaaaaaaaaaULL; compiles warning-free and produces the expected output using both gcc and clang, with -Wall -Wextra -O, and with and without -m32. Reviewers: simonmar, austin, bgamari Reviewed By: bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1860
* When encountering a duplicate symbol, show source of the first symbolReid Barton2016-01-311-1/+5
| | | | | | | | | | | | Test Plan: Used this to track down an issue I was having. Reviewers: simonmar, austin, erikd, bgamari Reviewed By: erikd, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1863
* Properly track live registers when saving the CCCS.Geoffrey Mainland2016-01-311-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | Summary: When saving the CCCS, we now correctly track the set of live registers and pass them to the jump_SAVE_CCCS macro. This is now a variadic macro, but variadic macros are supported by GCC since 3.0 and by all versions of clang, so this should not be a problem. Test Plan: ./validate with the following build options: ``` BuildFlavour = quick-llvm SRC_HC_OPTS_STAGE1 = -fllvm-fill-undef-with-garbage ``` Reviewers: bgamari, simonmar, austin, rwbarton, simonpj Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1864 GHC Trac Issues: #11487
* Fix the Windows buildThomas Miedema2016-01-292-2/+2
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* Fix cost-centre-stack bug when creating new PAP (#5654)Simon Marlow2016-01-271-0/+12
| | | | | See comment in `AutoApply.h`. This partly fixes #5654. New test added, and renamed the old test to match the ticket number.
* Use stage1 build variables when building the RTSReid Barton2016-01-271-1/+1
| | | | | | | | | | | | | The fourth argument of distdir-way-opts was missing. So, for example, SRC_HC_OPTS_STAGE1 was not used when building the RTS. Test Plan: validate --slow Reviewers: austin, bgamari, thomie Reviewed By: thomie Differential Revision: https://phabricator.haskell.org/D1857
* rts/Timer: Actually fix #9105Ben Gamari2016-01-271-1/+3
| | | | | | | | | | | | | | | | | | | jberthold astutely pointed out that the previous fix (D1822) could not have possibly fixed the issue as the patch would only have had any effect if !PROFILING. Test Plan: Check for reduced CPU usage when compiled with `-prof` but without `+RTS -p` Reviewers: simonmar, austin, jberthold Reviewed By: simonmar, jberthold Subscribers: simonmar, thomie Differential Revision: https://phabricator.haskell.org/D1844 GHC Trac Issues: #9105
* Fix segmentation fault when .prof file not writeableThomas Miedema2016-01-263-9/+11
| | | | | | | | | | | | | | | | | | | | | | | | | There are two ways to do retainer profiling. Quoting from the user's guide: 1. `+RTS -hr` "Breaks down the graph by retainer set" 2. `+RTS -hr<cc> -h<x>`, where `-h<x>` is one of normal heap profiling break-down options (e.g. `-hc`), and `-hr<cc> means "Restrict the profile to closures with retainer sets containing cost-centre stacks with one of the specified cost centres at the top." Retainer profiling writes to a .hp file, like the other heap profiling options, but also to a .prof file. Therefore, when the .prof file is not writeable for whatever reason, retainer profiling should be turned off completely. This worked ok when running the program with `+RTS -hr` (option 1), but a segfault would occur when using `+RTS -hr<cc> -h<x>`, with `x!=r` (option 2). This commit fixes that. Reviewed by: bgamari Differential Revision: https://phabricator.haskell.org/D1849 GHC Trac Issues: #11489
* Nicer error on +RTS -hc without -rtsopts or -profThomas Miedema2016-01-261-4/+42
| | | | | | | | | | | | | | Before: * without -rtsopts: Most RTS options are disabled. Link with -rtsopts to enable them. * with -rtsopts: invalid heap profile option: -hc After: * the flag -hc requires the program to be built with -prof Copy `Note [OPTION_SAFE vs OPTION_UNSAFE]` from commit 8c7ad0bd. Reviewed by: bgamari Differential Revision: https://phabricator.haskell.org/D1845
* Show error message for unknown symbol on Elf_Rel platformsReid Barton2016-01-251-1/+0
| | | | | | | | | | | | Summary: This is already the behavior on Elf_Rela platforms, and is helpful. Reviewers: simonmar, austin, bgamari, erikd Reviewed By: erikd Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1841
* Remove unused IND_PERMJoachim Breitner2016-01-2314-72/+2
| | | | | | | | | | | | | | | | | it seems that this closure type has not been in use since 5d52d9, so all this is dead and untested code. This removes it. Some of the code might be useful for a counting indirection as described in #10613, so when implementing that, have a look at what this commit removes. Test Plan: validate on harbormaster Reviewers: austin, bgamari, simonmar Reviewed By: simonmar Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1821
* rts: Disable tick timer unless really neededBen Gamari2016-01-221-3/+8
| | | | | | | | | | | | | | | | | | | | | | Trac #9105 notes significant CPU usage by an otherwise idle process when compiled with profiling. The reason for this is that we keep the tick timer active in the profiling RTS even if profiling wasn't requested at runtime. If the user requests any sort of profiling then we need to keep the timer active to ensure that samples are collected. Test Plan: Validate, check CPU usage, ensure profiling still works Reviewers: simonmar, austin Reviewed By: simonmar, austin Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1822 GHC Trac Issues: #9105
* Switch from -this-package-key to -this-unit-id.Edward Z. Yang2016-01-191-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A small cosmetic change, but we have to do a bit of work to actually support it: - Cabal submodule update, so that Cabal passes us -this-unit-id when we ask for it. This includes a Cabal renaming to be consistent with Unit ID, which makes ghc-pkg a bit more scrutable. - Build system is updated to use -this-unit-id rather than -this-package-key, to avoid deprecation warnings. Needs a version test so I resurrected the old test we had (sorry rwbarton!) - I've *undeprecated* -package-name, so that we are in the same state as GHC 7.10, since the "correct" flag will have only entered circulation in GHC 8.0. - I removed -package-key. Since we didn't deprecate -package-id I think this should not cause any problems for users; they can just change their code to use -package-id. - The package database is indexed by UNIT IDs, not component IDs. I updated the naming here. - I dropped the signatures field from ExposedModule; nothing was using it, and instantiatedWith from the package database field. - ghc-pkg was updated to use unit ID nomenclature, I removed the -package-key flags but I decided not to add any new flags for now. Signed-off-by: Edward Z. Yang <ezyang@cs.stanford.edu> Test Plan: validate Reviewers: austin, hvr, bgamari Reviewed By: bgamari Subscribers: 23Skidoo, thomie, erikd Differential Revision: https://phabricator.haskell.org/D1780
* rts/posix: Fail with HEAPOVERFLOW when out of memory during mmapBen Gamari2016-01-171-1/+1
| | | | | | | | | | | | Test Plan: Validate Reviewers: simonmar, austin Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1787 GHC Trac Issues: #11300
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