1. 11 Nov, 2016 1 commit
  2. 10 Nov, 2016 1 commit
    • Ben Gamari's avatar
      Pass -no-pie to GCC · bae4a55b
      Ben Gamari authored
      Certain distributions (e.g. Debian and Ubuntu) have enabled PIE be
      default in their GCC packaging. This breaks our abuse of GCC as a linker
      which requires that we pass -Wl,-r, which is incompatible with
      PIE (since the former implies that we are generating a relocatable
      object file and the latter an executable).
      
      Test Plan: Validate
      
      Reviewers: hvr, austin
      
      Subscribers: rwbarton, thomie, erikd
      
      Differential Revision: https://phabricator.haskell.org/D2691
      
      GHC Trac Issues: #12759
      bae4a55b
  3. 05 Sep, 2016 1 commit
    • Ben Gamari's avatar
      distrib: Fix libdw bindist check · 05b497ec
      Ben Gamari authored
      As reported in #12555 this code was terribly broken. Sadly, Autoconf was
      none-the-wiser. Thanks to @rwbarton for pointing this out.
      
      Test Plan: Test with libdw version newer and older and 0.158
      
      Reviewers: hvr, austin, rwbarton
      
      Reviewed By: rwbarton
      
      Subscribers: thomie, rwbarton, erikd
      
      Differential Revision: https://phabricator.haskell.org/D2510
      
      GHC Trac Issues: #12555
      05b497ec
  4. 14 Jun, 2016 1 commit
  5. 31 May, 2016 1 commit
  6. 16 Apr, 2016 1 commit
    • Herbert Valerio Riedel's avatar
      Rework CC/CC_STAGE0 handling in `configure.ac` · 865602e0
      Herbert Valerio Riedel authored
      Rather than using the non-standard/idiomatic `--with-{gcc,clang}=...`
      scheme use the `CC=...` style scheme.
      
      The basic idea is to have Autoconf's CC/CFLAG/CPPFLAG apply to
      stage{1,2,3}, while having a separate _STAGE0 set of env-vars
      denote the bootstrap-toolchain flags/programs.
      
      This should be simpler, less confusing, and somewhat more in line with
      Autoconf's idioms (allowing us to reuse more of Autoconf rather than
      (re)inventing our own confusing non-standard m4 macros to do stuff that
      Autoconf could almost do already for us)
      
      Morever, expose CC_STAGE0 as a so-called "precious" variable.
      
      So now we can better control which bootstrapping gcc is used
      (by default the one used by the stage0 ghc, unless CC_STAGE0 is
      overriden)
      
      ```
      Some influential environment variables:
        CC_STAGE0   C compiler command (bootstrap)
        CC          C compiler command
        CFLAGS      C compiler flags
        ...
      
      Use these variables to override the choices made by `configure' or to
      help it...
      865602e0
  7. 15 Apr, 2016 1 commit
  8. 28 Mar, 2016 1 commit
    • Herbert Valerio Riedel's avatar
      Autoconf: detect and set CFLAGS/CPPFLAGS needed for C99 mode · afc48f89
      Herbert Valerio Riedel authored
      This is the first phase of addressing #11757 which aims to make C99
      support a base-line requirement for GHC and clean up the code-base to
      use C99 facilities when sensible.
      
      This patch exploits the logic/heuristic used by `AC_PROG_CC_C99` to
      determine the flags needed in case the C compiler isn't able to compile
      C99 code in its current mode. We can't use `AC_PROG_CC_C99` directly
      though because GHC's build-system expects CC to contain a filename
      without any flags, while `AC_PROG_CC_C99` would e.g. result in
      `CC="gcc -std=gnu99"`. Morever, we support different `CC`s for
      stage0/1/2, so we need a version of `AC_PROG_CC_C99` for which we can
      specify the `CC`/`CFLAGS` variables to operate on. This is what
      `FP_SET_CFLAGS_C99` does.
      
      Note that Clang has been defaulting to C99+ for a long time, while GCC 5
      defaults to C99+ as well. So this has mostly an affect on older GCCs
      versions prior to 5.0 and possibly compilers other than GCC/Clang (which
      are not officially supported for building GHC anyway).
      
      Reviewers: kgardas, erikd, bgamari, austin
      
      Reviewed By: erikd
      
      Differential Revision: https://phabricator.haskell.org/D2045
      afc48f89
  9. 08 Jan, 2016 1 commit
    • thomie's avatar
      Build system: fix `pwd` issues on Windows · f7b45c31
      thomie authored
      Some parts of the build system require that paths are what msys2 calls
      "mixed style":
        * forwards slashes
        * absolute paths starting with a drive letter followed by a colon
          (e.g. "C:")
      
      The removal of ghc-pwd in 4c56ad36 changed $(TOP) from mixed style to
      unix style, resulting in a broken Windows build for some.
      
      Differential Revision: https://phabricator.haskell.org/D1752
      f7b45c31
  10. 04 Jan, 2016 1 commit
    • thomie's avatar
      Build system: delete ghc-pwd · 4c56ad36
      thomie authored
      On Windows, with msys2, `pwd` works (as can be seen by the use of `pwd`
      that slipped into the validate script), so there is really no need for
      `ghc-pwd` anymore.
      
      Test Plan: try it
      
      Reviewers: austin, bgamari, Phyx
      
      Reviewed By: Phyx
      
      Subscribers: Phyx, erikd
      
      Differential Revision: https://phabricator.haskell.org/D1731
      4c56ad36
  11. 17 Oct, 2015 1 commit
    • Ben Gamari's avatar
      Libdw: Add libdw-based stack unwinding · a6a3dabc
      Ben Gamari authored
      This adds basic support to the RTS for DWARF-assisted unwinding of the
      Haskell and C stack via libdw. This only adds the infrastructure;
      consumers of this functionality will be introduced in future diffs.
      
      Currently we are carrying the initial register collection code in
      Libdw.c but this will eventually make its way upstream to libdw.
      
      Test Plan: See future patches
      
      Reviewers: Tarrasch, scpmw, austin, simonmar
      
      Reviewed By: austin, simonmar
      
      Subscribers: simonmar, thomie, erikd
      
      Differential Revision: https://phabricator.haskell.org/D1196
      
      GHC Trac Issues: #10656
      a6a3dabc
  12. 10 Apr, 2015 1 commit
  13. 17 Feb, 2015 1 commit
  14. 17 Aug, 2014 1 commit
    • kgardas's avatar
      workaround Solaris 11 GNU C CPP issue by using GNU C 3.4 as CPP · 2d42564a
      kgardas authored
      Summary:
      Solaris 11 distributed GNU C 4.5.x is configured in a way that its
      CPP is not working well while invoked from GHC. GHC runs it with
      -x assembler-with-cpp and in this particular configuration GNU C CPP
      does not provide any line-markers so GHC's output of errors or warnings
      is confusing since it points to preprocessed file in /tmp and not
      to the original Haskell file. Fortunately old GNU C 3.4.x is still
      provided by the OS and when installed it'll be used automatically
      as GHC CPP which is whole logic of this patch. So although we use modern
      GCC as a C compiler and assembler we use old GCC as a C preprocessor.
      
      Test Plan: validate
      
      Reviewers: austin
      
      Reviewed By: austin
      
      Subscribers: phaskell, simonmar, relrod, ezyang, carter
      
      Differential Revision: https://phabricator.haskell.org/D151
      2d42564a
  15. 02 Jul, 2014 1 commit
  16. 19 Feb, 2014 1 commit
  17. 17 Jun, 2013 1 commit
    • thoughtpolice's avatar
      Detect linker information at runtime. Fixes Trac #6063 · 71a194d8
      thoughtpolice authored
      Previously, we did ./configure time checks to see if 'GNU ld' supported
      certain options. If it does, we bake those options into the link step.
      See Trac #5240.
      
      Unfortunately, the linker we use at runtime can change for several
      reasons. One is that the user specifies -pgml 'foo'. The other is if
      /usr/bin/ld or whatnot changes from when GHC was built.  Those options
      mentioned earlier are specific to GNU ld, but many systems support GNU
      gold too. This is Trac #6063
      
      .
      
      So we need to check at runtime what linker we're using. This is actually
      a little bit complicated because we normally use the C compiler as our
      linker. Windows and OS X are also special here.
      
      Finally, this patch also unconditionally gives '--hash-size=31' and
      '--reduce-memory-overheads' to the system linker if it's GNU ld. These
      options have been supported for 8+ years from what I can see, and there
      are probably a lot of other reasons why GHC would not work with such an
      ancient binutils, all things considered.
      
      See Note [Run-time linker info] in SysTools for details. There are
      plenty of comments as well in the surrounding code.
      Signed-off-by: thoughtpolice's avatarAustin Seipp <aseipp@pobox.com>
      71a194d8
  18. 18 Mar, 2013 1 commit
  19. 17 Feb, 2013 1 commit
  20. 30 Jan, 2013 1 commit
  21. 13 Nov, 2012 1 commit
  22. 03 Oct, 2012 1 commit
    • ian@well-typed.com's avatar
      Build the dynamic way by default on Linux/amd64 · 898cb090
      ian@well-typed.com authored
      This required various build system changes to get the build to go
      through.
      
      In the inplace shell wrappers, we set LD_LIBRARY_PATH to allow programs
      to find their libraries. In the future, we might change the inplace tree
      to be the same shape as an installed tree instead. However, this would
      mean changing the way we do installation, as currently we use cabal's
      installation methods to install the libraries, but that only works if
      the libraries are under libraries/foo/dist-install/build/..., rather
      than in inplace/lib/...
      898cb090
  23. 08 Aug, 2012 1 commit
  24. 05 Aug, 2012 2 commits
  25. 30 Jan, 2012 1 commit
  26. 14 Jan, 2012 1 commit
  27. 04 Jan, 2012 1 commit
  28. 27 Nov, 2011 1 commit
  29. 19 Oct, 2011 1 commit
  30. 02 Aug, 2011 2 commits
  31. 01 Aug, 2011 1 commit
  32. 22 Jun, 2011 1 commit
  33. 22 Apr, 2011 1 commit
  34. 21 Apr, 2011 1 commit
  35. 24 Jan, 2011 1 commit
  36. 11 Feb, 2011 1 commit
    • Ian Lynagh's avatar
      Fix platform detection in bindists · 650d6440
      Ian Lynagh authored
      In a bindist, we generate files like the hsc2hs wrapper.
      This means we need to have the right values for the variables like
      CONF_GCC_LINKER_OPTS_STAGE1 which in turn means we need to know what
      platform we're on.
      650d6440
  37. 21 Nov, 2010 1 commit
    • Ian Lynagh's avatar
      For bindists, build ghc-pwd with stage 1 · 6bb8d64a
      Ian Lynagh authored
      rather then the bootstrapping compiler. This fixes problems where the
      bootstrapping compiler dynamically links against libraries not on the
      target machine.
      6bb8d64a
  38. 20 Nov, 2010 1 commit