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------------------------------------------------------------------------
On 2010-06-25T11:31:31+00:00 Matthias Klose wrote:

icedtea6 20100624:

Linking launcher...
make[9]: Leaving directory `/build/buildd/openjdk-6-6b20~pre1/build/zerovm/openjdk.build/hotspot/outputdir/linux_arm_shark/product'
All done.
make[8]: Leaving directory `/build/buildd/openjdk-6-6b20~pre1/build/zerovm/openjdk.build/hotspot/outputdir/linux_arm_shark/product'
cd linux_arm_shark/product && ./test_gamma
java full version "1.6.0_20-b20"
UNREACHABLE executed!
Stack dump:
0.	Running pass 'ARM Machine Code Emitter' on function '@"sun.nio.cs.US_ASCII$Encoder::encodeArrayLoop"'
Aborted
make[7]: *** [productshark] Error 134

Reply at: https://bugs.launchpad.net/openjdk/+bug/600278/comments/0

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On 2010-06-29T08:53:39+00:00 Gbenson wrote:

What LLVM is this?

Reply at: https://bugs.launchpad.net/openjdk/+bug/600278/comments/1

------------------------------------------------------------------------
On 2010-06-29T08:54:55+00:00 Matthias Klose wrote:

2.7 release

Reply at: https://bugs.launchpad.net/openjdk/+bug/600278/comments/2

------------------------------------------------------------------------
On 2010-06-29T09:12:56+00:00 Xerxes Rånby wrote:

are you using the ARM or THUMB llvm backend?

If you are using the THUMB backend then you are probably hitting LLVM PR 6223
http://llvm.org/bugs/show_bug.cgi?id=6223

If you are using the ARM backend and have enabled -mattr=+neon then you are probably hitting LLVM PR 6561
http://llvm.org/bugs/show_bug.cgi?id=6561

in both cases you hit the unreachanble because the llvm jit cant jit
thumb/neon instructions.

Reply at: https://bugs.launchpad.net/openjdk/+bug/600278/comments/3

------------------------------------------------------------------------
On 2010-07-19T14:43:42+00:00 Xerxes Rånby wrote:

llvm/lib/System/Unix/Host.inc contain this switch at LLVM compiletime:

  // FIXME: We need to pick the right ARM triple (which involves querying the
  // chip). However, for now this is most important for LLVM arch selection, so
  // we only need to make sure to distinguish ARM and Thumb.
#  if defined(__thumb__)
  Arch = "thumb";
#  else
  Arch = "arm";
#  endif

This makes llvm use the thumb JIT backend by default when compiling with
a thumb toolchain, unfortunally the thumb jit backend are not
implemented, see http://llvm.org/bugs/show_bug.cgi?id=6223 and thats why
you are hitting this bug.

you can pass -march=arm or -mtriple=arm to the JIT at runtime to force
llvm to use the implemented ARM JIT


Reply at: https://bugs.launchpad.net/openjdk/+bug/600278/comments/10


** Bug watch added: llvm.org/bugs/ #6561
   http://llvm.org/bugs/show_bug.cgi?id=6561

-- 
You received this bug notification because you are a member of OpenJDK,
which is subscribed to openjdk-6 in Ubuntu.
https://bugs.launchpad.net/bugs/600278

Title:
  fails to build on armel in maverick

Status in OpenJDK:
  In Progress
Status in “openjdk-6” package in Ubuntu:
  Fix Released

Bug description:
  the build of openjdk-6 6b20~pre1-0ubuntu2 fails to build from source in maverick. 
  below is a snippet from the build log which can be found at:

  http://launchpadlibrarian.net/50884418/buildlog_ubuntu-maverick-armel
  .openjdk-6_6b20~pre1-0ubuntu2_FAILEDTOBUILD.txt.gz

  Linking launcher...
  make[9]: Leaving directory `/build/buildd/openjdk-6-6b20~pre1/build/zerovm/openjdk.build/hotspot/outputdir/linux_arm_shark/product'
  All done.
  make[8]: Leaving directory `/build/buildd/openjdk-6-6b20~pre1/build/zerovm/openjdk.build/hotspot/outputdir/linux_arm_shark/product'
  cd linux_arm_shark/product && ./test_gamma
  java full version "1.6.0_20-b20"
  UNREACHABLE executed!
  Stack dump:
  0.	Running pass 'ARM Machine Code Emitter' on function '@"sun.nio.cs.US_ASCII$Encoder::encodeArrayLoop"'
  Aborted
  make[7]: *** [productshark] Error 134
  make[7]: Leaving directory `/build/buildd/openjdk-6-6b20~pre1/build/zerovm/openjdk.build/hotspot/outputdir'
  make[6]: *** [generic_buildshark] Error 2
  make[6]: Leaving directory `/build/buildd/openjdk-6-6b20~pre1/build/zerovm/openjdk/hotspot/make'
  make[5]: *** [productshark] Error 2
  make[5]: Leaving directory `/build/buildd/openjdk-6-6b20~pre1/build/zerovm/openjdk/hotspot/make'
  make[4]: *** [hotspot-build] Error 2
  make[4]: Leaving directory `/build/buildd/openjdk-6-6b20~pre1/build/zerovm/openjdk'
  make[3]: *** [build_product_image] Error 2
  make[3]: Leaving directory `/build/buildd/openjdk-6-6b20~pre1/build/zerovm/openjdk'
  make[2]: *** [stamps/icedtea.stamp] Error 2
  make[2]: Leaving directory `/build/buildd/openjdk-6-6b20~pre1/build/zerovm'
  make[1]: *** [stamps/add-zero.stamp] Error 2
  make[1]: Leaving directory `/build/buildd/openjdk-6-6b20~pre1/build'
  /bin/bash: line 5: kill: (4035) - No such process
  make: *** [stamps/build] Error 1
  dpkg-buildpackage: error: debian/rules build gave error exit status 2
  ******************************************************************************
  Build finished at 20100625-0649
  FAILED [dpkg-buildpackage died]
  Purging chroot-autobuild/build/buildd/openjdk-6-6b20~pre1

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