- Glasgow-haskell-users

Buildng ghc-devel from macports
by C.M.Brown 13 Apr '07

13 Apr '07

Hello, I've been trying to build the ghc-devel package (6.7) from macports. However the build seems to fail half through. Specifically when running the setup for base-2.1: configure: Using compiler: ../../compiler/ghc-inplace configure: Compiler flavor: GHC configure: Compiler version: 6.7.20070411 configure: Using package tool: ../../utils/ghc-pkg/ghc-pkg-inplace configure: Using ar found on system at: /usr/bin/ar configure: Using haddock found on system at: /opt/local/bin/haddock configure: Using ld given by user at: /usr/bin/ld configure: No pfesetup found configure: Using ranlib found on system at: /usr/bin/ranlib configure: Using runghc found on system at: /opt/local/bin/runghc configure: No runhugs found configure: Using tar found on system at: /usr/bin/tar configure: Using happy: /opt/local/bin/happy configure: Using alex: /opt/local/bin/alex configure: Using hsc2hs: ../../utils/hsc2hs/hsc2hs-inplace configure: No c2hs found configure: No cpphs found configure: No greencard found Setup: Unrecognised flags: --with-cc=gcc make[1]: *** [stamp/configure.library.build-profiling.base] Error 1 make: *** [stage1] Error 2 Hope someone can help! kind regards, Chris.

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FreeBSD/amd64 registerised running
by Gregory Wright 13 Apr '07

13 Apr '07

Hi Ian, Simon, I have ghc-6.6 (darcs version from 20070405) running registerized on FreeBSD/amd64. The FreeBSD version is 6.2. The problem with the compiler crash turned out to be simple. In the FreeBSD header file regex.h, regex_t is defined as typedef struct { int re_magic; size_t re_nsub; /* number of parenthesized subexpressions */ __const char *re_endp; /* end pointer for REG_PEND */ struct re_guts *re_g; /* none of your business :-) */ } regex_t; The problem is that the "re_magic" field is defined as an int. When building the .hc files on the i386 host, the re_nsub field is at an offset of 4. On the amd64 target, it is at an offset of 8. In the ghc binding to the regex functions, re_nsub is used to compute how much memory to allocate in a call to allocaBytes. This leads to garbage being passed to newPinnedByteArray#. The fix is to patch libraries/base/Text/Regex/Posix.hs on the amd64 target: --- libraries/base/Text/Regex/Posix.hs.sav Thu Apr 5 12:05:22 2007 +++ libraries/base/Text/Regex/Posix.hs Thu Apr 5 12:05:45 2007 @@ -106,7 +106,7 @@ regexec (Regex regex_fptr) str = do withCString str $ \cstr -> do withForeignPtr regex_fptr $ \regex_ptr -> do - nsub <- ((\hsc_ptr -> peekByteOff hsc_ptr 4)) regex_ptr + nsub <- ((\hsc_ptr -> peekByteOff hsc_ptr 8)) regex_ptr {-# LINE 109 "Posix.hsc" #-} let nsub_int = fromIntegral (nsub :: CSize) allocaBytes ((1 + nsub_int) * (16)) $ \p_match -> do With this patch, we are pretty close. However, there still seems to be something wrong with the splitter. I can make a working registerized compiler if I set splitObjs=NO in build.mk, but it seems as if whatever is wrong with ghc-split shouldn't be too hard to fix. The splitting problem shows up as a linking failure. Some variables defined in the text section are changed from global symbols to local symbols by the splitter. An example (just one of several hundred symbols that are changed from global to local): From building ghc-6.6-20070405 on i386: > nm --defined-only libHSbase.a | grep "D " <snip> 00000000 D base_TextziReadziLex_zdLr3bklvl122_closure and from building ghc-6.6-20070405 on amd64: > nm --defined-only libHSbase.a | grep "d " <snip> 0000000000000000 d base_TextziReadziLex_zdLr3bklvl122_closure The "D" on i386 indicates a global symbol, the "d" on amd64 a local symbol. I've glanced at ghc-split.lprl, but on what files is it invoked? Can I run it from the command line on a file and see check what comes out? The file itself doesn't say what it expects as input, and the section of the Commentary on the splitter is more than terse. The linker is still broken (so no ghci): greenhouse-george> ghci ___ ___ _ / _ \ /\ /\/ __(_) / /_\// /_/ / / | | GHC Interactive, version 6.6.20770405, for Haskell 98. / /_\\/ __ / /___| | http://www.haskell.org/ghc/ \____/\/ /_/\____/|_| Type :? for help. ghc-6.6.20770405: internal error: R_X86_64_PC32 relocation out of range: __isthreaded = 0xfffffff800122aad (GHC version 6.6.20070405 for x86_64_unknown_freebsd) Please report this as a GHC bug: http://www.haskell.org/ghc/ reportabug Abort trap: 6 (core dumped) but I think I understand this. On FreeBSD mmap does not have the MAP_32BIT option that linux does to guarantee a mapping in first 2 GB of address space. But by supplying a hint address in the lower address space we can get the effect the MAP_32BIT option. I thought I had this fixed in the patch I applied to Linker.c, but I have obviously overlooked something. I'm continuing to work on the linker, and expect that it will be working soon. I'd appreciate a some guidance on the splitter question as I am entirely unfamiliar with it. Best Wishes, Greg

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ANNOUNCE: GHC 6.6.1 Release Candidate
by Ian Lynagh 13 Apr '07

13 Apr '07

We are pleased to announce the Release Candidate phase for GHC 6.6.1. Snapshots beginning with 6.6.20070409 are release candidates for 6.6.1 You can download snapshots from here: http://www.haskell.org/ghc/dist/stable/dist/ Right now we have the source bundles: http://www.haskell.org/ghc/dist/stable/dist/ghc-6.6.20070409-src.tar.bz2 http://www.haskell.org/ghc/dist/stable/dist/ghc-6.6.20070409-src-extralibs.… Only the first of these is necessary. The "extralibs" package contains various extra packages that we normally supply with GHC - unpack the extralibs tarball on top of the source tree to add them, and they will be included in the build automatically. There are also currently binary distributions for x86_64/Linux and i386/Linux. More may appear later. The Windows (mingw) binary distributions are currently broken, but we hope to have this resolved soon. Please test as much as possible; bugs are much cheaper if we find them before the release! We hope to release in a couple of weeks, but of course that may slip if problems are uncovered. Thanks Ian, on behalf of the GHC team

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Re: FreeBSD/amd64 registerised running
by Gregory Wright 10 Apr '07

10 Apr '07

Hi Olli, On Apr 10, 2007, at 1:23 PM, Oliver Braun wrote: > Hi Gregory, > > * Gregory Wright <gwright(a)comcast.net> [2007-04-09 12:38 -0400]: >>>> I have ghc-6.6 (darcs version from 20070405) running >>>> registerized on >>>> FreeBSD/amd64. > >> I will certainly provide patches and a binary distribution that >> people can use to bootstrap their own compilers. > > It would be nice if you cann provide a bootstrap tarball for > integration > in the FreeBSD lang/ghc port. > I will do this as soon as I get the Linker bugs worked out so we can have ghci. Since this won't make it into 6.6.1 a few patches will have to be applied to the distribution. Best Wishes, Greg

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Failed to load interface for `Prelude'
by Joel Reymont 08 Apr '07

08 Apr '07

Pepe already told me that I need SplitObj=NO on Mac OSX. Can someone tell me why? Is the error below due to split objs? Thanks, Joel -- ../compiler/stage1/ghc-inplace -H32m -O2 -istage2/utils -istage2/ basicTypes -istage2/types -istage2/hsSyn -istage2/prelude - istage2/rename -istage2/typecheck -istage2/deSugar -istage2/ coreSyn -istage2/specialise -istage2/simplCore -istage2/stranal - istage2/stgSyn -istage2/simplStg -istage2/codeGen -istage2/main - istage2/profiling -istage2/parser -istage2/cprAnalysis -istage2/ ndpFlatten -istage2/iface -istage2/cmm -istage2/nativeGen - istage2/ghci -Istage2 -DGHCI -package template-haskell -DDEBUGGER - DGHCI_TABLES_NEXT_TO_CODE -threaded -package readline -DUSE_READLINE - cpp -fglasgow-exts -fno-generics -Rghc-timing -I. -Iparser -package unix -package Cabal -package regex-compat -ignore-package lang - recomp -Rghc-timing -H16M '-#include "cutils.h"' -package-name ghc-6.7.20070404 -fgenerics -c basicTypes/OccName.lhs-boot -o stage2/basicTypes/OccName.o-boot -ohi stage2/basicTypes/OccName.hi-boot ../compiler/stage1/ghc-inplace -H32m -O2 -istage2/utils -istage2/ basicTypes -istage2/types -istage2/hsSyn -istage2/prelude - istage2/rename -istage2/typecheck -istage2/deSugar -istage2/ coreSyn -istage2/specialise -istage2/simplCore -istage2/stranal - istage2/stgSyn -istage2/simplStg -istage2/codeGen -istage2/main - istage2/profiling -istage2/parser -istage2/cprAnalysis -istage2/ ndpFlatten -istage2/iface -istage2/cmm -istage2/nativeGen - istage2/ghci -Istage2 -DGHCI -package template-haskell -DDEBUGGER - DGHCI_TABLES_NEXT_TO_CODE -threaded -package readline -DUSE_READLINE - cpp -fglasgow-exts -fno-generics -Rghc-timing -I. -Iparser -package unix -package Cabal -package regex-compat -ignore-package lang - recomp -Rghc-timing -H16M '-#include "cutils.h"' -package-name ghc-6.7.20070404 -fgenerics -O -c utils/Encoding.hs -o stage2/ utils/Encoding.o -ohi stage2/utils/Encoding.hi basicTypes/OccName.lhs-boot:1:0: Failed to load interface for `Prelude': Use -v to see a list of the files searched for. <<ghc: 19113508 bytes, 4 GCs, 123616/123616 avg/max bytes residency (1 samples), 16M in use, 0.01 INIT (0.00 elapsed), 0.03 MUT (0.10 elapsed), 0.02 GC (0.02 elapsed) :ghc>> make[2]: *** [stage2/basicTypes/OccName.o-boot] Error 1 make[2]: *** Waiting for unfinished jobs.... utils/Encoding.hs:1:0: Failed to load interface for `Prelude': Use -v to see a list of the files searched for. <<ghc: 25147464 bytes, 4 GCs, 123268/123268 avg/max bytes residency (1 samples), 16M in use, 0.01 INIT (0.00 elapsed), 0.03 MUT (0.12 elapsed), 0.02 GC (0.02 elapsed) :ghc>> make[2]: *** [stage2/utils/Encoding.o] Error 1 make[1]: *** [stage2] Error 2 make: *** [bootstrap2] Error 2 -- http://wagerlabs.com/

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Linking and Including nonstandard paths
by Chris McCraw 08 Apr '07

08 Apr '07

Hi! We're fairly happy users of ghc in my department. We use it widely for instruction and to some degree for research. I'm the fellow tasked with maintaining the local installation, and I have a couple of simple and seemingly related problems that I'm sure have easy solutions, though I haven't been able to find them. 1) I'd like to embed an additional library search directory in ghc so that it does the equivalent of -L/path/to/extra/dir every time it's used to link something. Unfortunately, our libgmp resides in a nonstandard directory and so *every time* someone wants to compile they must ghc -L/lusr/gnu/lib ... to find -lgmp. I promise, we have thought about moving libgmp into the default search path, and setting $LD_LIBRARY_PATH, but those break a lot of other stuff in our setup, and are really not practical in our environment. We build all of our utilities from source (including ghc) so I would be happy & able to tweak some setting during configure or make or even hack the source--but I can't figure out where to change it. I figured it'd be in configure.mk(.in) but adding "-R /lusr/gnu/lib" to the LD command line did not do the trick in generating a ghc binary that calls ld/collect2 in the same way. 2) When building something, I often need to add an include directory. As an example, GSLHaskell: % runhaskell -I/lusr/gnu/include Setup.hs build [...] [16 of 17] Compiling GSL.Plot ( GSL/Plot.hs, dist/build/GSL/Plot.p_o ) [17 of 17] Compiling GSL ( GSL.hs, dist/build/GSL.p_o ) GSL/gslaux.c:2:26: gsl/gsl_blas.h: No such file or directory GSL/gslaux.c:3:28: gsl/gsl_linalg.h: No such file or directory gsl/gsl_blas.h and friends are indeed in /lusr/gnu/include and I'd like to do the equivalent of adding a $CFLAGS of -I/lusr/gnu/include to the build (or to every build--it'd be grand if that was included by default, though not as necessary as item #1 above) but can't figure out how. I'm working with ghc-6.6 on ubuntu linux, in case that matters. I'm not sure what else is relevant, but am happy to provide details as needed. Help? Thanks in advance!

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distributed compilation by GHC
by Bulat Ziganshin 05 Apr '07

05 Apr '07

Hello GHC, i'm interested to know how much people are interested in having support for distributed compilation by GHC? it's true that production GHC version doesn't support multi-threaded compilation, so such system will be of benefit even for local usage for users with multi-core chips? -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com

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Re: Failed to load interface for `Prelude'
by Joel Reymont 05 Apr '07

05 Apr '07

It's driving me nuts but I keep getting the same error with our without split objects! I did manage to build the quickest configuration, it's the performance one I cannot build. On Apr 5, 2007, at 3:02 PM, Pepe Iborra wrote: > The problem is not in the logs you attached, those are from stage2. > The real error shows up when compiling base, if I recall correctly, > but I never had the courage to find out why. -- http://wagerlabs.com/

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ghci doesn't run FFi'd code which works under ghc on WinXP
by Vivian McPhail 05 Apr '07

05 Apr '07

Hi All, I wrote a binding to matlab matrix.h and mat.h. My test program works when I compile a binary, but when I try to use the code in ghci nothing happens. There are no error messages, but all computations return a blank line. Does this fall into a known class of error? I can provide my source code, but because of licensing requirements I can't provide the .dll's against which the code is linked. TIA Vivian

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Login problems with trac
by Robin Green 03 Apr '07

03 Apr '07

I am having difficulty logging in to GHC's trac. The situation is this: 1. I'm pretty sure I used to log in with username "greenrd" to file bugs (at least, that's what Firefox's password manager tells me!). That no longer works. I get the message below. ------------------------------------------------------------------ Permission Denied To create tickets or edit the wiki, please login with username guest, password guest. TICKET_CREATE privileges are required to perform this operation TracGuide — The Trac User and Administration Guide ------------------------------------------------------------------ 2. I cannot log in with username "guest" using Firefox 1.5 on my office machine. I just get the same message, when I click "login". This occurs even after I have cleared my web browser's cache. Maybe I need to do something else other than clear the cache? 3. I have been able to log in once as a guest *and* create a ticket - but only on Firefox 2, on my office machine, which is not behind a proxy. 4. Strangest of all, I have not been able to log in as a guest using Firefox 2 on my dorm machine which is behind a proxy - even though Firefox is *not* automatically supplying a username and password! When I attempt to login as guest, I get redirected to http://hackage.haskell.org/trac/ghc and I don't seem to be logged in - a "login" link is still there, instead of a "logout" one. This is all rather confusing. I have not figured out what is going on here. -- Robin

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