November 2001 - Nhc-bugs

Re: [nhc-bugs] Build bug
by Malcolm Wallace 28 Nov '01

28 Nov '01

Simon Marlow wrote: > > > javac nhctracer/*.java > > > nhctracer/TabbedPanel.java:13: Can''t access constructor > > > "java.awt.Color" S 15.11.2.1 > > > nhctracer/TabbedPanel.java:15: The local variable "lo" may have not been > > > initialized before use S 14.3 > > > nhctracer/TabbedPanel.java:16: The local variable "lo" may have not been > > > initialized before use S 14.3 > > > > What version of Java do you have installed? I don't see these errors with > > any of Sun's JDK-1.1.7, IBM's JDK-1.1.8, or Sun's JDK-1.3.1 on Linux. > > This machine has Kaffe 1.0.5 installed; I have no idea whether that came > as standard with RH 6.2 or not: Ok, I've tried Kaffe 1.0.5, which reproduces the problem you saw. Kaffe 1.0.6 seems to fix the bug, so I suggest you upgrade. Regards, Malcolm

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nhc doesn't block buffer correctly
by Ian Lynagh 28 Nov '01

28 Nov '01

With this function: > module Main where > import IO > main :: IO() > main = do hSetBuffering stdout (BlockBuffering (Just 3)) > putStr ("abcdefgh" ++ inf) > inf = inf nhc98 produces no output. The library report says: For output, items are written out, or flushed, from the internal buffer according to the buffer mode: * block-buffering: the entire buffer is written out whenever it overflows, a hFlush is issued, or the handle is closed. An implementation is free to flush the buffer more frequently, but not less frequently, than specified above. Thanks Ian

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Build bug
by Simon Marlow 27 Nov '01

27 Nov '01

I got the following build error with nhc-1.10, i386-unknown-linux (vanilla RedHat 6.2): cd src/tracer/ui; make CFG=T install make[1]: Entering directory `/home/simonmar/tmp/nhc98-1.10/src/tracer/ui' javac nhctracer/*.java nhctracer/TabbedPanel.java:13: Can''t access constructor "java.awt.Color" §15.11.2.1 nhctracer/TabbedPanel.java:15: The local variable "lo" may have not been initialized before use §14.3 nhctracer/TabbedPanel.java:16: The local variable "lo" may have not been initialized before use §14.3 make[1]: *** [classfiles] Error 1 make[1]: Leaving directory `/home/simonmar/tmp/nhc98-1.10/src/tracer/ui' make: *** [lib/hat-trail.jar] Error 2 Cheers, Simon

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How serious are these?
by Feliks Kluzniak 26 Nov '01

26 Nov '01

Hello, I am trying to install nhc on my machine (ix86, OpenBSD) by building it from the source distribution. I get a number of warnings (see below). The warnings about the large decimal constants seem worrying: is it supposed to be like this? The build failed, because I have no Java (which, I think, was not mentioned in the installation documents). To what extent will this limit my options? I am looking forward to your response. Sincerely, -- Feliks Kluzniak ------------------------------------------------------ /usr/include/malloc.h:4: warning: #warning "<malloc.h> is obsolete, use <stdlib.h>" ./Int.hc:1312: warning: decimal constant is so large that it is unsigned ./Int.hc:2266: warning: decimal constant is so large that it is unsigned ./Bounded_Int.p.c:58: warning: decimal constant is so large that it is unsigned ./Int.p.c:3558: warning: decimal constant is so large that it is unsigned ./Int.p.c:5363: warning: decimal constant is so large that it is unsigned ./Bounded_Int.z.c:42: warning: decimal constant is so large that it is unsigned ./Int.z.c:1982: warning: decimal constant is so large that it is unsigned ./Int.z.c:3121: warning: decimal constant is so large that it is unsigned ./Bounded_Int.T.c:156: warning: decimal constant is so large that it is unsigned ./Int.T.c:6892: warning: decimal constant is so large that it is unsigned ./Int.T.c:9188: warning: decimal constant is so large that it is unsigned browsercomms.c:36: warning: passing arg 2 of `accept' from incompatible pointer type gmake[1]: Entering directory `/scratch/try/nhc/nhc98-1.10/src/tracer/ui' javac nhctracer/*.java /bin/sh: javac: not found gmake[1]: *** [classfiles] Error 127 ------------------------------------------------------ P.S. Just in case it might help throw some light on the problem, here is the output from configure. ------------------------------------------------------ 108 /scratch/try/nhc/nhc98-1.10> ./configure --buildwith=gcc --prefix=/scratch/try/nhc --heap=4Mb Configuring for nhc98... [ v1.10 (2001-10-19) ] -------- Configuring hmake... [ 2.03 (2001-10-02) ] (hmake configuration is done once only.) First we look for already-installed Haskell compilers: Looking for hbc... (not found) Looking for ghc... (not found) Looking for nhc13... (not found) Looking for nhc98... (not found) You said you want to use gcc to build hmake. Now I'm creating targets/ix86-OpenBSD/hmake.config for your installation. If I got something wrong, you can edit targets/ix86-OpenBSD/hmake.config by hand and run 'configure' again. (I will not undo your changes.) (You can force me to auto-configure hmake again by removing that file.) Done. -------- Configuration report for nhc98. (You can re-run configure to change settings before proceeding.) You wish (eventually) to install the following components in these locations: (Installation directories are not created/checked at this stage.) Final install root: /scratch/try/nhc hmake binaries: /scratch/try/nhc/lib/hmake/ix86-OpenBSD nhc98 binaries/libs: /scratch/try/nhc/lib/nhc98/ix86-OpenBSD Interfaces/includes: /scratch/try/nhc/include/nhc98 Scripts: /scratch/try/nhc/bin Man pages: /scratch/try/nhc/man/man1 Html documents: (none) Now we check/create your build directories: Config directory: targets/ix86-OpenBSD Build directory root: /scratch/try/nhc/nhc98-1.10/targets (exists) Object files build in: /scratch/try/nhc/nhc98-1.10/targets/ix86-OpenBSD (exists) Executables and libs: /scratch/try/nhc/nhc98-1.10/lib/ix86-OpenBSD (created) You are going to build nhc98 with: gcc nhc98comp uses RTS delimiters? yes This machine's endian-ness is: -DLOW_BYTE_FIRST (detected) Executables need .exe suffix? no (detected) Testing for the curses library: -lcurses (detected) Testing for the readline library: -lreadline (detected) Reading /usr/include/errno.h: updated DErrNo.hs Default heap for compiled programs is: 1000000 words (calculated) Creating new lib/ix86-OpenBSD/nhc98heap ... Adding Makefile config script to /scratch/try/nhc/nhc98-1.10/lib/ix86-OpenBSD... Updating hmake config script in /scratch/try/nhc/nhc98-1.10/lib/ix86-OpenBSD/hmake.config... Adding build scripts to /scratch/try/nhc/nhc98-1.10/script... nhc98 hmake hi greencard hat-trail hat-stack hat-connect hat-check hat-observe hat-detect hat-checki hat-port Creating src/runtime/nhc98heap.c ... Saving current configuration in targets/ix86-OpenBSD/config.cache Done.

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program built with nhc and profiling support segfaults
by Ian Lynagh 19 Nov '01

19 Nov '01

Sorry about the size of this but it's not obvious to me how to narrow it down. The following shows the program work without profiling support but segfault with it. A tarball of the code is at http://c93.keble.ox.ac.uk/~ian/nhc-bug.tar.gz $ make clean nhc; ./Project -d +RTS -H350M < Project.lhs > /dev/null; make clean nhc-prof; ./Project -d +RTS -H350M < Project.lhs > /dev/null rm -f *.o *.hi Project HFLAGS="+RTS -K10M -RTS -nkpat" hmake -nhc98 Project nhc98 +RTS -K10M -RTS -nkpat -c -o Pretty.o Pretty.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o Tokens.o Tokens.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o Tree.o Tree.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o PP.o PP.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o Position.o Position.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o PCbase.o PCbase.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o PC.o PC.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o Parser.o Parser.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o Mangle.o Mangle.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o Sort.o Sort.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o FiniteMap.o FiniteMap.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o IA.o IA.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o Offside.o Offside.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o Scanner.o Scanner.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o Delit.o Delit.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o Args.o Args.lhs nhc98 +RTS -K10M -RTS -nkpat -c -o Project.o Project.lhs nhc98 +RTS -K10M -RTS -nkpat -o Project Sort.o FiniteMap.o PCbase.o Pretty.o Tree.o IA.o PC.o Position.o PP.o Parser.o Mangle.o Offside.o Scanner.o Tokens.o Delit.o Args.o Project.o rm -f *.o *.hi Project HFLAGS="+RTS -K10M -RTS -nkpat" hmake -p -nhc98 Project nhc98 -p +RTS -K10M -RTS -nkpat -c -o Pretty.p.o Pretty.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o Tokens.p.o Tokens.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o Tree.p.o Tree.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o PP.p.o PP.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o Position.p.o Position.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o PCbase.p.o PCbase.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o PC.p.o PC.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o Parser.p.o Parser.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o Mangle.p.o Mangle.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o Sort.p.o Sort.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o FiniteMap.p.o FiniteMap.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o IA.p.o IA.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o Offside.p.o Offside.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o Scanner.p.o Scanner.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o Delit.p.o Delit.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o Args.p.o Args.lhs nhc98 -p +RTS -K10M -RTS -nkpat -c -o Project.p.o Project.lhs nhc98 -p +RTS -K10M -RTS -nkpat -o Project Sort.p.o FiniteMap.p.o PCbase.p.o Pretty.p.o Tree.p.o IA.p.o PC.p.o Position.p.o PP.p.o Parser.p.o Mangle.p.o Offside.p.o Scanner.p.o Tokens.p.o Delit.p.o Args.p.o Project.p.o Segmentation fault (core dumped) Thanks Ian

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Problems with qualified and hiding
by Ian Lynagh 12 Nov '01

12 Nov '01

Hi guys, If I have something like > foo hiding = hiding or > foo qualified = qualified then nhc98 gives this error: 6:3 Found foo but expected a {-end-of-definition-or-EOF-} Thanks Ian

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Counters wrap in error messages
by Ian Lynagh 12 Nov '01

12 Nov '01

An error message from nhc, note the -1466809254: The program ran out of heap memory. (Current heapsize is 40000000 bytes.) You can set a bigger size with e.g. +RTS -H4M -RTS (4M = four megabytes).GC stats: Only 83 words after gc, need 90 words. Used 1541499472 words of heap. Moved -1466809254 words of heap in 2217 gcs. 83 words to next gc. Max live after gc: 9715784 words. Thanks Ian

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hp2graph
by Amanda Clare 09 Nov '01

09 Nov '01

Hi, I have a file produced by profiling that hp2graph doesn't like. It reports: Illegal token MARK at 104497 Aborted If I remove any single line in the sample immediately above line 104497 then hp2graph is happy, and produces a .ps file. Is there a limit on the number of functions that can be considered at any timepoint? I have 134 here. I've attached the file if it helps. The hp2graph I'm using came with nhc98 version 1.08, on a ix86-Linux machine. Amanda -- Amanda Clare http://users.aber.ac.uk/ajc99/ Tel: +44 (0)1970 621922 Fax: +44 (0)1970 622455 Dept. of Computer Science, University of Wales, Aberystwyth, SY23 3DB

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hp2graph
by Amanda Clare 08 Nov '01

08 Nov '01

Hi, I have a file produced by profiling that hp2graph doesn't like. It reports: Illegal token MARK at 104497 Aborted If I remove any single line in the sample immediately above line 104497 then hp2graph is happy, and produces a .ps file. Is there a limit on the number of functions that can be considered at any timepoint? I have 134 here. I've attached the file if it helps. The hp2graph I'm using came with nhc98 version 1.08, on a ix86-Linux machine. Amanda -- Amanda Clare http://users.aber.ac.uk/ajc99/ Tel: +44 (0)1970 621922 Fax: +44 (0)1970 622455 Dept. of Computer Science, University of Wales, Aberystwyth, SY23 3DB

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Error reading interface files
by Joe English 08 Nov '01

08 Nov '01

Hello, There seems to be a problem with the .hi file writer and/or parser in nhc98 (v1.10, 2001-10-19). The following test case demonstrates the problem: -- File: Arrow.hs module Arrow where class Arrow a where arr :: (x -> y) -> a x y instance Arrow (->) where {- This is the problem spot -} arr = id -- END of Arrow.hs -- File: Test.hs module Main where import Arrow main :: IO () main = return () -- END of Test.hs Arrow.hs compiles OK, but Test.hs does not: | % nhc98 -c Test.hs | | Fail: In file ./Arrow.hi: | 4:17 Found (Prelude.->) but expected a ) --Joe English jenglish(a)flightlab.com

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