[GHC] #9673: ghc-7.8.3 fails to build on aarch64
#9673: ghc-7.8.3 fails to build on aarch64 -------------------------------+--------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Keywords: | Operating System: Linux Architecture: arm | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------+--------------------------------------- (I first mentioned this recently in ticket:7942#comment:42 but I thought better to open a new ticket for this.) I tried to build ghc-7.8.3 on aarch64 Linux (Fedora 21 development) with the patch from #7942, and ran into: {{{ "inplace/bin/ghc-cabal" copy libraries/haskell2010 dist-install "strip" '/builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64' '/usr' '/usr/lib64/ghc-7.8.3' '/usr/share/doc/ghc/html/libraries' 'v dyn ' Installing library in /builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64/usr/lib64/ghc-7.8.3/haskell2010-1.1.2.0 "/builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64/usr/lib64/ghc-7.8.3/bin /ghc-pkg" --force --global-package-db "/builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64/usr/lib64/ghc-7.8.3/package.conf.d" update rts/dist/package.conf.install Reading package info from "rts/dist/package.conf.install" ... done. rts-1.0: Warning: library-dirs: /usr/lib64/ghc-7.8.3/rts-1.0 doesn't exist or isn't a directory rts-1.0: Warning: include-dirs: /usr/lib64/ghc-7.8.3/include doesn't exist or isn't a directory rts-1.0: cannot find any of ["libHSrts.a","libHSrts.p_a","libHSrts- ghc7.8.3.so","libHSrts-ghc7.8.3.dylib","HSrts-ghc7.8.3.dll"] on library path (ignoring) "inplace/bin/ghc-cabal" register libraries/ghc-prim dist-install "/builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64/usr/lib64/ghc-7.8.3/bin/ghc" "/builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64/usr/lib64/ghc-7.8.3/bin /ghc-pkg" "/builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64/usr/lib64/ghc-7.8.3" '/builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64' '/usr' '/usr/lib64/ghc-7.8.3' '/usr/share/doc/ghc/html/libraries' NO Warning: cannot determine version of /builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64/usr/lib64/ghc-7.8.3/bin /ghc-pkg : "" Registering ghc-prim-0.3.1.0... "inplace/bin/ghc-cabal" register libraries/integer-gmp dist-install "/builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64/usr/lib64/ghc-7.8.3/bin/ghc" "/builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64/usr/lib64/ghc-7.8.3/bin /ghc-pkg" "/builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64/usr/lib64/ghc-7.8.3" '/builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64' '/usr' '/usr/lib64/ghc-7.8.3' '/usr/share/doc/ghc/html/libraries' NO Warning: cannot determine version of /builddir/build/BUILDROOT/ghc-7.8.3-38.fc22.aarch64/usr/lib64/ghc-7.8.3/bin /ghc-pkg : "" ghc-cabal: Installed package ID not registered: "ghc-prim-0.3.1.0-inplace" ghc.mk:901: recipe for target 'install_packages' failed Makefile:64: recipe for target 'install' failed make[1]: *** [install_packages] Error 1 make: *** [install] Error 2 }}} The problem seems to be that the installed (dynlinked) ghc-pkg does give any output!! (eg "ghc-pkg --version" returns "", same for --help.) When I try the built binaries I find that ghc-7.8.3/utils/ghc-pkg/dist/build/tmp/ghc-pkg (which is statically linked) works normally (ie it outputs --help and --version) whereas $DESTDIR/$libdir/ghc-7.8.3/bin/ghc-pkg gives no output on stdout! A workaround is to build with DYNAMIC_GHC_PROGRAMS=NO (ticket:7942#comment:44) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: ghc-7.8.3 fails to build on aarch64 ---------------------------------+-------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Resolution: | Keywords: Operating System: Linux | Architecture: arm Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: ---------------------------------+-------------------------------- Comment (by juhpetersen): Same for 7.8.4 btw ;) Downstream bug is https://bugzilla.redhat.com/show_bug.cgi?id=1195231 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: ghc-7.8.3 fails to build on aarch64 ---------------------------------+-------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Resolution: | Keywords: Operating System: Linux | Architecture: arm Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: ---------------------------------+-------------------------------- Comment (by juhpetersen): This also happens with 7.10 RC2 (with Erik's patch https://github.com/ghc/ghc/commit/b9063703301f0d902b4bb2eb28ac27e9bc050ea0 ). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: ghc 7.8.4 and 7.10 fail to build on aarch64 ---------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: ---------------------------------+------------------------------------- Changes (by juhpetersen): * version: 7.8.3 => 7.10.1-rc1 * architecture: arm => aarch64 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Changes (by juhpetersen): * priority: normal => high * failure: None/Unknown => Installing GHC failed Comment: Also happens with ghc-7.11.20150316 (yesterday's head of git master). Note: {{{ $ rpmbuild/BUILDROOT/ghc-7.11.20150316-0.1.fc21.aarch64/usr/lib64/ghc-7.11.20150316/bin /ghc-pkg --version GHC package manager version 7.11.20150316 $ }}} vs {{{ $ echo $(rpmbuild/BUILDROOT/ghc-7.11.20150316-0.1.fc21.aarch64/usr/lib64/ghc-7.11.20150316/bin /ghc-pkg --version) $ }}} !! So somehow subprocess IO seems to be affected. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by erikd): Closed #10264 as a duplicate of this. Tracked it down to somewhere in the `process` library. Debugging continues. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by erikd): Have a tiny test program (trimmed down version of `Distribution.Simple.Utils.rawSystemStdInOut` running the problem arguments) as follows: {{{#! hs import System.IO import System.Exit ( ExitCode(..) ) import Control.Concurrent import Control.Monad import Control.Exception (evaluate, finally) import System.Environment import System.Process main :: IO () main = do [path] <- getArgs -- "/home/erikd/GHC/7.11/bin/ghc-pkg" -- "/usr/bin /ghc-pkg" runInteractiveProcess path ["--version"] Nothing Nothing >>= \(inh,outh,errh,pid) -> do err <- hGetContents errh out <- hGetContents outh mv <- newEmptyMVar let force str = (evaluate (length str) >> return ()) `finally` putMVar mv () --TODO: handle exceptions like text decoding. _ <- forkIO $ force out _ <- forkIO $ force err -- wait for both to finish, in either order takeMVar mv takeMVar mv -- wait for the program to terminate exitcode <- waitForProcess pid unless (exitcode == ExitSuccess) $ print $ path ++ " returned " ++ show exitcode ++ if null err then "" else " with error message:\n" ++ err print (out, err, exitcode) }}} Compiling and running this in a couple of different ways results in some interesting results: {{{ $ /usr/bin/ghc-7.6.3 --make test.hs -o prog && ./prog /usr/bin/ghc-pkg Linking prog ... ("GHC package manager version 7.6.3\n","",ExitSuccess) $ /usr/bin/ghc-7.6.3 --make test.hs -o prog && \ ./prog /home/erikd/GHC/7.11/bin/ghc-pkg ("","",ExitSuccess) }}} This may be an output encoding issue as the `TODO` warning in the code warns about. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by erikd): Even adding a print immediately after the `hGetContents` calls like this: {{{ err <- hGetContents errh out <- hGetContents outh print (out, err) }}} results in a pair of empty strings : `("","")`. Now diving into `hGetContents`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by juhpetersen): This also affects building packages like haskell-platform and gtk2hs- buildtools, which have versioned build-tools dependencies (eg on alex and happy, etc) in their .cabal files, when the those build-tools are Haskell dynamically linked. (A workaround is to drop the version/bound from the .cabal file.) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by erikd): Pretty certain that the problem is caused by a lack of SMP support for AArch64 in `mk/config.mk`. With the attached patch I was able to compile and install from git HEAD. Still need to do a little more testing to be sure. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:9 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by juhpetersen): Thanks Erik, I kicked off a test build with this patch: http://arm.koji.fedoraproject.org/koji/taskinfo?taskID=2957099 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by juhpetersen): Replying to [comment:10 juhpetersen]:
I kicked off a test build with this patch: http://arm.koji.fedoraproject.org/koji/taskinfo?taskID=2957099
Unfortunately the build still seems to fail the same way for me unless I am missing something: http://arm.koji.fedoraproject.org//work/tasks/7099/2957099/build.log [7MB] -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by rwbarton): The behavior in comment:4 is really weird, I would start the investigation there. Maybe try `echo $(strace .../ghc-pkg --version)` and try to figure out why it does not write anything to stdout? Could it be because stdout is not connected to a terminal somehow? (That's about the only explanation I can think of...) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Changes (by juhpetersen): * version: 7.10.1-rc1 => 7.11 Comment: I diffed the straces (with addresses normalized/sanitized to 0x3ffyyyyyyyy). Below is the final significant chunk. The straces are for "./rpmbuild/BUILDROOT/ghc-7.10.1-1.fc23.aarch64/usr/lib64/ghc-7.10.1/bin /ghc-pkg --version". {{{ --- process.strace 2015-04-15 03:11:21.351274400 -0400 +++ subprocess.strace 2015-04-15 03:13:42.167058743 -0400 mprotect(0x3ffyyyyyyyy, 65536, PROT_READ) = 0 mprotect(0x3ffyyyyyyyy, 65536, PROT_READ) = 0 mprotect(0x3ffyyyyyyyy, 65536, PROT_READ) = 0 munmap(0x3ffyyyyyyyy, 48881) = 0 -set_tid_address(0x3ffyyyyyyyy) = 13259 +set_tid_address(0x3ffyyyyyyyy) = 13239 set_robust_list(0x3ffyyyyyyyy, 24) = 0 rt_sigaction(SIGRTMIN, {0x3ffyyyyyyyy, [], SA_SIGINFO}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {0x3ffyyyyyyyy, [], SA_RESTART|SA_SIGINFO}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 -brk(0) = 0x13010000 -brk(0x13040000) = 0x13040000 +brk(0) = 0x6950000 +brk(0x6980000) = 0x6980000 openat(AT_FDCWD, "/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=106374736, ...}) = 0 mmap(NULL, 106374736, PROT_READ, MAP_PRIVATE, 3, 0) = 0x3ffyyyyyyyy close(3) = 0 clock_getres(CLOCK_PROCESS_CPUTIME_ID, {0, 1}) = 0 -clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 37059433}) = 0 +clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 36939847}) = 0 openat(AT_FDCWD, "/proc/meminfo", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x3ffyyyyyyyy read(3, "MemTotal: 16690880 kB\nMemF"..., 1024) = 1024 close(3) = 0 munmap(0x3ffyyyyyyyy, 65536) = 0 mmap(NULL, 2097152, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x3ffyyyyyyyy -munmap(0x3ffyyyyyyyy, 655360) = 0 munmap(0x3ffyyyyyyyy, 393216) = 0 +munmap(0x3ffyyyyyyyy, 655360) = 0 timer_create(CLOCK_MONOTONIC, {(nil), SIGVTALRM, SIGEV_SIGNAL, {...}}, {0}) = 0 rt_sigaction(SIGVTALRM, {0x3ffyyyyyyyy, [], SA_RESTART}, NULL, 8) = 0 timer_settime(0, 0, {it_interval={0, 10000000}, it_value={0, 10000000}}, NULL) = 0 rt_sigaction(SIGINT, {0x3ffyyyyyyyy, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGINT, NULL, {0x3ffyyyyyyyy, [], 0}, 8) = 0 rt_sigaction(SIGINT, {0x3ffyyyyyyyy, [], 0}, NULL, 8) = 0 rt_sigaction(SIGPIPE, {0x3ffyyyyyyyy, [], 0}, {SIG_DFL, [], 0}, 8) = 0 rt_sigaction(SIGTSTP, {0x3ffyyyyyyyy, [], 0}, NULL, 8) = 0 -clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 37535065}) = 0 +clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 37421445}) = 0 rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0 rt_sigaction(SIGINT, {0x3ffyyyyyyyy, [], SA_RESETHAND|SA_SIGINFO}, NULL, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 -ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 -pselect6(2, [], [1], NULL, {0, 0}, 0) = 1 (out [1], left {0, 0}) -write(1, "GHC package manager version 7.10"..., 35) = 35 -ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 -clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 38040864}) = 0 +ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, 0x3ffyyyyyyyy) = -1 ENOTTY (Inappropriate ioctl for device) +ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, 0x3ffyyyyyyyy) = -1 ENOTTY (Inappropriate ioctl for device) +clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 37847540}) = 0 rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0 -clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 38076223}) = 0 +clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 37882073}) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 timer_settime(0, 0, {it_interval={0, 0}, it_value={0, 0}}, NULL) = 0 rt_sigaction(SIGVTALRM, {SIG_IGN, [], SA_INTERRUPT|SA_NODEFER|SA_RESETHAND}, {0x3ffyyyyyyyy, [], SA_RESTART}, 8) = 0 timer_delete(0) = 0 rt_sigprocmask(SIG_BLOCK, [TTOU], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 rt_sigaction(SIGINT, {SIG_DFL, [], 0}, NULL, 8) = 0 rt_sigaction(SIGPIPE, {SIG_DFL, [], 0}, NULL, 8) = 0 rt_sigaction(SIGTSTP, {SIG_DFL, [], 0}, NULL, 8) = 0 -clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 38428740}) = 0 +clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 38226330}) = 0 exit_group(0) = ? +++ exited with 0 +++ }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by juhpetersen): and the subprocess straces diff between x86_64 and aarch64 looks like this (for 7.8.4): {{{ --- subprocess-x86_64.strace 2015-04-15 17:18:07.000000000 +0900 +++ subprocess-arm64.strace 2015-04-15 16:50:06.000000000 +0900 -rt_sigaction(SIGVTALRM, {0x7f149254f650, [], SA_RESTORER|SA_RESTART, 0x7f1496add430}, NULL, 8) = 0 +rt_sigaction(SIGVTALRM, {0x3ff9a226910, [], SA_RESTART}, NULL, 8) = 0 timer_settime(0, 0, {it_interval={0, 10000000}, it_value={0, 10000000}}, NULL) = 0 -rt_sigaction(SIGINT, {0x7f149255b750, [], SA_RESTORER, 0x7f1496add430}, {SIG_DFL, [], 0}, 8) = 0 -rt_sigaction(SIGINT, NULL, {0x7f149255b750, [], SA_RESTORER, 0x7f1496add430}, 8) = 0 -rt_sigaction(SIGINT, {0x7f149255b750, [], SA_RESTORER, 0x7f149219ab20}, NULL, 8) = 0 -rt_sigaction(SIGPIPE, {0x7f149255b6e0, [], SA_RESTORER, 0x7f1496add430}, {SIG_DFL, [], 0}, 8) = 0 -rt_sigaction(SIGTSTP, {0x7f149255b770, [], SA_RESTORER, 0x7f1496add430}, NULL, 8) = 0 -clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 8032580}) = 0 -clock_gettime(CLOCK_MONOTONIC, {1555, 94648060}) = 0 +rt_sigaction(SIGINT, {0x3ff9a237a10, [], 0}, {SIG_DFL, [], 0}, 8) = 0 +rt_sigaction(SIGINT, NULL, {0x3ff9a237a10, [], 0}, 8) = 0 +rt_sigaction(SIGINT, {0x3ff9a237a10, [], 0}, NULL, 8) = 0 +rt_sigaction(SIGPIPE, {0x3ff9a2379ac, [], 0}, {SIG_DFL, [], 0}, 8) = 0 +rt_sigaction(SIGTSTP, {0x3ff9a237a38, [], 0}, NULL, 8) = 0 +clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 34154801}) = 0 rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0 -rt_sigaction(SIGINT, {0x7f149255b7f0, [], SA_RESTORER|SA_RESETHAND|SA_SIGINFO, 0x7f1496add430}, NULL, 8) = 0 +rt_sigaction(SIGINT, {0x3ff9a237ac4, [], SA_RESETHAND|SA_SIGINFO}, NULL, 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 -ioctl(1, TCGETS, 0x7ffe2a9b0e70) = -1 ENOTTY (Inappropriate ioctl for device) -select(2, [], [1], NULL, {0, 0}) = 1 (out [1], left {0, 0}) -write(1, "GHC package manager version 7.8."..., 34) = 34 -clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 8190648}) = 0 -clock_gettime(CLOCK_MONOTONIC, {1555, 94885797}) = 0 +ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, 0x3fff519c9e8) = -1 ENOTTY (Inappropriate ioctl for device) +ioctl(1, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, 0x3fff519c9e8) = -1 ENOTTY (Inappropriate ioctl for device) +clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 34575324}) = 0 rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0 -clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 8203047}) = 0 -clock_gettime(CLOCK_MONOTONIC, {1555, 94922279}) = 0 -clock_gettime(CLOCK_THREAD_CPUTIME_ID, {0, 8206804}) = 0 +clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 34608930}) = 0 +clock_getres(CLOCK_THREAD_CPUTIME_ID, {0, 1}) = 0 +clock_gettime(CLOCK_THREAD_CPUTIME_ID, {0, 34623282}) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 timer_settime(0, 0, {it_interval={0, 0}, it_value={0, 0}}, NULL) = 0 -rt_sigaction(SIGVTALRM, {SIG_IGN, [], SA_RESTORER|SA_INTERRUPT|SA_NODEFER|SA_RESETHAND, 0x7f149219ab20}, {0x7f149254f650, [], SA_RESTORER|SA_RESTART, 0x7f1496add430}, 8) = 0 +rt_sigaction(SIGVTALRM, {SIG_IGN, [], SA_INTERRUPT|SA_NODEFER|SA_RESETHAND}, {0x3ff9a226910, [], SA_RESTART}, 8) = 0 timer_delete(0) = 0 rt_sigprocmask(SIG_BLOCK, [TTOU], [], 8) = 0 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 -rt_sigaction(SIGINT, {SIG_DFL, [], SA_RESTORER, 0x7f1496add430}, NULL, 8) = 0 -rt_sigaction(SIGPIPE, {SIG_DFL, [], SA_RESTORER, 0x7f1496add430}, NULL, 8) = 0 -rt_sigaction(SIGTSTP, {SIG_DFL, [], SA_RESTORER, 0x7f1496add430}, NULL, 8) = 0 -clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 8337035}) = 0 -clock_gettime(CLOCK_MONOTONIC, {1555, 95152954}) = 0 +rt_sigaction(SIGINT, {SIG_DFL, [], 0}, NULL, 8) = 0 +rt_sigaction(SIGPIPE, {SIG_DFL, [], 0}, NULL, 8) = 0 +rt_sigaction(SIGTSTP, {SIG_DFL, [], 0}, NULL, 8) = 0 +clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {0, 34949910}) = 0 exit_group(0) = ? +++ exited with 0 +++ }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:14 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by rwbarton): Interesting results. This seems to confirm that the issue is whether stdout is a tty. When stdout is redirected to a file (and thus not a tty), the stdout Handle will have BlockBuffering (see `GHC.IO.Handle.Internals.getCharBuffer`). Perhaps the output is being written to that buffer, but never flushed. (Whereas when stdout is a tty, the stdout Handle has LineBuffering so the output is flushed immediately.) `ghc-pkg --version` calls `exitWith ExitSuccess`, so I think stdout is supposed to be flushed by `GHC.TopHandler.flushStdHandles`. I'm very suspicious of the two `ioctl` syscalls, where there is only one on x86_64. It looks as though the stdout Handle CAF (which is a `unsafePerformIO $ do { ... ; mkHandle ... }`) has been copied by the dynamic loader and the version referred to by the executable has a separate identity from the version referred to internally by libHSbase in `GHC.TopHandler.flushStdHandles`. On Linux x86_64 I see these references to the stdout Handle in ghc-pkg: {{{ rwbarton@morphism:/tmp$ objdump -DR ~/lib/ghc-7.8.4/bin/ghc-pkg | grep stdout 6407a0: R_X86_64_GLOB_DAT base_GHCziIOziHandleziFD_stdout_closure 6493a0: R_X86_64_64 base_GHCziIOziHandleziFD_stdout_closure 6495b8: R_X86_64_64 base_GHCziIOziHandleziFD_stdout_closure 649968: R_X86_64_64 base_GHCziIOziHandleziFD_stdout_closure 649ce0: R_X86_64_64 base_GHCziIOziHandleziFD_stdout_closure 649e30: R_X86_64_64 base_GHCziIOziHandleziFD_stdout_closure }}} What is the corresponding output on your ARM system? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:15 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output
from subprocess
-------------------------------------+-------------------------------------
Reporter: juhpetersen | Owner:
Type: bug | Status: new
Priority: high | Milestone:
Component: Compiler | Version: 7.11
Resolution: | Keywords:
Operating System: Linux | Architecture: aarch64
Type of failure: Installing GHC | Test Case:
failed | Blocking:
Blocked By: | Differential Revisions:
Related Tickets: |
-------------------------------------+-------------------------------------
Comment (by erikd):
On my Aarch64 system, for `ghc-pkg` from the Debian version of ghc-7.6.4 I
get:
{{{
$ objdump -DR /usr/lib/ghc/lib/ghc-pkg | grep stdout
0000000001035d20 <stdout>:
1035d20: R_AARCH64_COPY stdout
}}}
where as for the newly compiled but broken 7.10 version I get:
{{{
$ objdump -DR /home/erikd/GHC/7.10/lib/ghc-7.10.1.20150414/bin/ghc-pkg |
grep stdout
47bd60: R_AARCH64_GLOB_DAT
base_GHCziIOziHandleziFD_stdout_closure
000000000049a2e8
{{{ 000000000049a2e8
: 49a2e8: R_AARCH64_COPY
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Changes (by rwbarton): * cc: bgamari (added) Comment: Replying to [comment:16 erikd]: base_GHCziIOziHandleziFD_stdout_closure
}}}
I'm not very familiar with dynamic linking on ARM but isn't this wrong? `base_GHCziIOziHandleziFD_stdout_closure` needs to point to the same address in the executable and in the shared library since it is a closure that will get overwritten with a new Handle object the first time it is entered. bgamari, you know about these ARM relocation types right? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:17 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by erikd): Using the test program from comment 6 and a basic "Hello world" program, I can reproduce this problem by compiling the "Hello world" program with `-O2 -dynamic` and running it with the above test program runner. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:18 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by erikd): Simple test program compiled with the stage2 compiler (with `-O2 -dyanmic`): {{{ import System.Environment import System.IO main :: IO () main = do args <- getArgs putStrLn "GHC package manager version 1.2.3" if null args then return () else hFlush stdout }}} Running as `./testprog > a.txt ; cat a.txt` produces the expected and correct output whereas `./testprog X > a.txt ; cat a.txt` produces nothing. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:19 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by rwbarton): It seems that the R_AARCH64_COPY relocation is not necessarily wrong; either the executable can go through a GOT to access a symbol with fixed offset from the dynamic library, or the dynamic library can go through a GOT to access a symbol with fixed offset from the executable which has been copied from the dynamic library with a copy relocation. Definitely worth checking that the linker took care of this properly though. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:20 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by bgamari): Erikd, are you using gold? There is a bug in the arm bfd LD wherein the linker will use a `COPY` relocation where we wouldn't expect it. As you suggest chaos ensues as the object's info table is not preserved by the linker when the symbol definition is copied. This is one of the reasons why we require gold on arm. I'll try to pit together a more complete reply in the morning. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:21 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by juhpetersen): Replying to [comment:15 rwbarton]: Thanks for the analysis and comments.
On Linux x86_64 I see these references to the stdout Handle in ghc-pkg: : What is the corresponding output on your ARM system?
For the static 7.8.4 build (ie with DYNAMIC_GHC_PROGRAMS=NO) I get:
{{{
$ objdump -DR /usr/lib64/ghc-7.8.4/bin/ghc-pkg | grep stdout
00000000013290b0 <stdout>:
13290b0: R_AARCH64_COPY stdout
}}}
Whereas the dynamic builds for 7.8.4 and 7.10.1 give:
{{{
$ objdump -DR
/home/petersen/rpmbuild/BUILDROOT/ghc-7.8.4-42.2.fc22.aarch64/usr/lib64/ghc-7.8.4/bin
/ghc-pkg | grep stdout
470af8: R_AARCH64_GLOB_DAT
base_GHCziIOziHandleziFD_stdout_closure
000000000048b908
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by juhpetersen): Replying to [comment:18 erikd]:
Using the test program from comment 6 and a basic "Hello world" program, I can reproduce this problem by compiling the "Hello world" program with `-O2 -dynamic` and running it with the above test program runner.
I can reproduce with dynamic helloworld too with -O1 and above: {{{ $ cat > test.hs main = putStrLn "hi" $ rm -f test.o test.hi; ghc -dynamic -O1 test.hs ; echo $(./test) [1 of 1] Compiling Main ( test.hs, test.o ) Linking test ... $ }}} It doesn't happen with -O0. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:23 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by juhpetersen): (Naively statically linking Setup.hs does not seem to help though (cf comment 8).) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:24 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by erikd): @bgamari This is not Arm, this is AArch64/Arm64. I seem to remember that @juhp tried the gold linker on AArch64, but ran into other problems. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:25 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by juhpetersen): Replying to [comment:25 erikd]:
I seem to remember that @juhp tried the gold linker on AArch64, but ran into other problems.
Well I tried build 7.8.4 with ld.gold but it didn't seem to make a difference for me. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:26 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Comment (by erikd): I just tested with the gold linker and that seems to fix it. Patch coming. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:27 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output
from subprocess
-------------------------------------+-------------------------------------
Reporter: juhpetersen | Owner:
Type: bug | Status: new
Priority: high | Milestone:
Component: Compiler | Version: 7.11
Resolution: | Keywords:
Operating System: Linux | Architecture: aarch64
Type of failure: Installing GHC | Test Case:
failed | Blocking:
Blocked By: | Differential Revisions:
Related Tickets: |
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Comment (by Erik de Castro Lopo
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: merge Priority: high | Milestone: 7.10.2 Component: Compiler | Version: 7.11 Resolution: | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Changes (by erikd): * status: new => merge * milestone: => 7.10.2 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:29 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess -------------------------------------+------------------------------------- Reporter: juhpetersen | Owner: Type: bug | Status: closed Priority: high | Milestone: 7.10.2 Component: Compiler | Version: 7.11 Resolution: fixed | Keywords: Operating System: Linux | Architecture: aarch64 Type of failure: Installing GHC | Test Case: failed | Blocking: Blocked By: | Differential Revisions: Related Tickets: | -------------------------------------+------------------------------------- Changes (by thoughtpolice): * status: merge => closed * resolution: => fixed Comment: Merged to `ghc-7.10`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9673#comment:30 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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