1. 28 Jul, 2014 2 commits
  2. 14 Feb, 2013 1 commit
  3. 15 Apr, 2011 1 commit
  4. 02 Aug, 2009 1 commit
    • Simon Marlow's avatar
      RTS tidyup sweep, first phase · a2a67cd5
      Simon Marlow authored
      The first phase of this tidyup is focussed on the header files, and in
      particular making sure we are exposinng publicly exactly what we need
      to, and no more.
      
       - Rts.h now includes everything that the RTS exposes publicly,
         rather than a random subset of it.
      
       - Most of the public header files have moved into subdirectories, and
         many of them have been renamed.  But clients should not need to
         include any of the other headers directly, just #include the main
         public headers: Rts.h, HsFFI.h, RtsAPI.h.
      
       - All the headers needed for via-C compilation have moved into the
         stg subdirectory, which is self-contained.  Most of the headers for
         the rest of the RTS APIs have moved into the rts subdirectory.
      
       - I left MachDeps.h where it is, because it is so widely used in
         Haskell code.
       
       - I left a deprecated stub for RtsFlags.h in place.  The flag
         structures are now exposed by Rts.h.
      
       - Various internal APIs are no longer exposed by public header files.
      
       - Various bits of dead code and declarations have been removed
      
       - More gcc warnings are turned on, and the RTS code is more
         warning-clean.
      
       - More source files #include "PosixSource.h", and hence only use
         standard POSIX (1003.1c-1995) interfaces.
      
      There is a lot more tidying up still to do, this is just the first
      pass.  I also intend to standardise the names for external RTS APIs
      (e.g use the rts_ prefix consistently), and declare the internal APIs
      as hidden for shared libraries.
      a2a67cd5
  5. 20 Nov, 2007 1 commit
    • Simon Marlow's avatar
      Move file locking into the RTS, fixing #629, #1109 · 1d026619
      Simon Marlow authored
      File locking (of the Haskell 98 variety) was previously done using a
      static table with linear search, which had two problems: the array had
      a fixed size and was sometimes too small (#1109), and performance of
      lockFile/unlockFile was suboptimal due to the linear search.
      Also the algorithm failed to count readers as required by Haskell 98
      (#629).
      
      Now it's done using a hash table (provided by the RTS).  Furthermore I
      avoided the extra fstat() for every open file by passing the dev_t and
      ino_t into lockFile.  This and the improvements to the locking
      algorithm result in a healthy 20% or so performance increase for
      opening/closing files (see openFile008 test).
      1d026619
  6. 08 Aug, 2006 1 commit
  7. 07 Apr, 2006 1 commit
    • Simon Marlow's avatar
      Reorganisation of the source tree · 0065d5ab
      Simon Marlow authored
      Most of the other users of the fptools build system have migrated to
      Cabal, and with the move to darcs we can now flatten the source tree
      without losing history, so here goes.
      
      The main change is that the ghc/ subdir is gone, and most of what it
      contained is now at the top level.  The build system now makes no
      pretense at being multi-project, it is just the GHC build system.
      
      No doubt this will break many things, and there will be a period of
      instability while we fix the dependencies.  A straightforward build
      should work, but I haven't yet fixed binary/source distributions.
      Changes to the Building Guide will follow, too.
      0065d5ab
  8. 28 Jun, 2005 1 commit
  9. 12 Sep, 2004 1 commit
  10. 25 Mar, 2003 1 commit
    • sof's avatar
      [project @ 2003-03-25 17:58:47 by sof] · 2548429c
      sof authored
      to ease replacement of the underlying allocator used by stgMallocBytes() and friends, provide (&use) RtsUtils.c:stgFree()
      2548429c
  11. 17 Jul, 2002 1 commit
    • simonmar's avatar
      [project @ 2002-07-17 09:21:48 by simonmar] · 7457757f
      simonmar authored
      Remove most #includes of system headers from Stg.h, and instead
      #include any required headers directly in each RTS source file.
      
      The idea is to (a) reduce namespace pollution from system headers that
      we don't need, (c) be clearer about dependencies on system things in
      the RTS, and (c) improve via-C compilation times (maybe).
      
      In practice though, HsBase.h #includes everything anyway, so the
      difference from the point of view of .hc source is minimal.  However,
      this makes it easier to move to zero-includes if we wanted to (see
      discussion on the FFI list; I'm still not sure that's possible but
      at least this is a step in the right direction).
      7457757f
  12. 09 Apr, 2002 1 commit
    • simonmar's avatar
      [project @ 2002-04-09 12:55:11 by simonmar] · ed0222d6
      simonmar authored
      - Revert rev. 1.7, i.e. go back to using malloc/free and a free list
        to manage hash list cells, because the arena method doesn't recycle
        used cells, resulting in memory leaks.
      
      - Add a freeHashList() call which was missing in removeHashTable().
      ed0222d6
  13. 26 Nov, 2001 1 commit
    • simonmar's avatar
      [project @ 2001-11-26 13:06:49 by simonmar] · 18ea22a1
      simonmar authored
      Use an arena internally to allocate hash bucket cells instead of the
      current home-brewed combination of malloc/free and a free list.
      
      We still allocate hash table segments using malloc/free because these
      are large (4k by default) and might interact badly with the blockish
      nature of the arena allocator.
      18ea22a1
  14. 14 Aug, 2001 1 commit
    • sewardj's avatar
      [project @ 2001-08-14 13:40:07 by sewardj] · bc5c8021
      sewardj authored
      Change the story about POSIX headers in C compilation.
      
      Until now, all C code in the RTS and library cbits has by default been
      compiled with settings for POSIXness enabled, that is:
         #define _POSIX_SOURCE   1
         #define _POSIX_C_SOURCE 199309L
         #define _ISOC9X_SOURCE
      If you wanted to negate this, you'd have to define NON_POSIX_SOURCE
      before including headers.
      
      This scheme has some bad effects:
      
      * It means that ccall-unfoldings exported via interfaces from a
        module compiled with -DNON_POSIX_SOURCE may not compile when
        imported into a module which does not -DNON_POSIX_SOURCE.
      
      * It overlaps with the feature tests we do with autoconf.
      
      * It seems to have caused borkage in the Solaris builds for some
        considerable period of time.
      
      The New Way is:
      
      * The default changes to not-being-in-Posix mode.
      
      * If you want to force a C file into Posix mode, #include as
        the **first** include the new file ghc/includes/PosixSource.h.
        Most of the RTS C sources have this include now.
      
      * NON_POSIX_SOURCE is almost totally expunged.  Unfortunately
        we have to retain some vestiges of it in ghc/compiler so that
        modules compiled via C on Solaris using older compilers don't
        break.
      bc5c8021
  15. 27 Jun, 2001 1 commit
  16. 25 Jun, 2001 1 commit
  17. 04 Dec, 2000 1 commit
  18. 06 Oct, 2000 1 commit
  19. 27 Jan, 1999 1 commit