[MIR] libllvm-2.9

[Chris Halse Rogers]

Binary package hint: llvm-2.9

Rationale:
 • Mesa currently has an optional dependency on llvm; mesa 7.11 (to which we will be updating in Oneiric) will require llvm
 • May want to enable Mono 2.10's llvm support, but this is strictly secondary.

Security:
 • No CVE, Secunia or Ubuntu reports found
 • Opens no ports, installs no daemons, installs no executables in /sbin or /usr/sbin, installs no setuid/setgid binaries
 • Has some security surface - it will be used by mesa as a code-gen/optimiser for software fallback code, which can be called by Firefox for accelerated rendering and WebGL. This would be a fairly indirect attack.

QA:
 • Asks no debconf questions
 • No configuration needed
 • Has a build-time testsuite; failures don't fail the build. Currently test-failures prevent failing the build on test-failure: one failure on amd64/i386, 60 on armel.
   • Test failure is fixed upstream, so should be fixable in Ubuntu & Debian (bug #790203)
 • llvm-2.9 has no bugs filed against it either in Debian or Ubuntu; llvm-2.8 has one open, Normal bug in Debian about broken Makefiles in the examples.
 • Strong upstream, but no bugfix releases.
 • llvm-c C bindings are mostly API stable.

UI:
 • N/A

Standards-compliance:
 • Installs include files into /usr/lib/llvm-2.9/include, but these appear to contain arch-specific stuff.

Maintenance:
 • Team-maintained in Debian, appears well maintained.

[Matthias Klose (doko)]

needs test-rebuilds of any package in main which b-d's on llvm-2.7-dev, e.g. openjdk-6, checking for regressions in the jtreg testsuite running the shark VM. llvm-2.8 is known to have issues.

[Chris Halse Rogers (raof)]

There are two source packages in main which build-depend on llvm-2.7-dev: openjdk-6 and openjdk-6b18.

Shark test results for openjdk-6:
LLVM2.7 - i386
--------------- jtreg console summary for hotspot ---------------
Error: compiler/6851282/Test.java
Error: compiler/6866651/Test.java
Error: compiler/6901572/Test.java
Error: runtime/6925573/SortMethodsTest.java
FAILED: runtime/6929067/Test6929067.sh
Test results: passed: 101; failed: 1; error: 4
--------------- jtreg console summary for langtools ---------------
FAILED: tools/javac/InterfaceAssert.java
Test results: passed: 1,407; failed: 1
--------------- jtreg console summary for jdk ---------------

LLVM2.9 - i386
--------------- jtreg console summary for hotspot ---------------
Error: compiler/6863420/Test.java
Error: compiler/6866651/Test.java
Error: compiler/6901572/Test.java
Error: runtime/6925573/SortMethodsTest.java
FAILED: runtime/6929067/Test6929067.sh
Test results: passed: 101; failed: 1; error: 4
--------------- jtreg console summary for langtools ---------------
FAILED: tools/javac/InterfaceAssert.java
Test results: passed: 1,407; failed: 1
--------------- jtreg console summary for jdk ---------------

**********
SUMMARY:
Same number of failures, differences are:
compiler/6851282/Test.java fails on llvm-2.7 and passes on llvm-2.9
compiler/6863420/Test.java passes on llvm-2.7 and fails on llvm-2.9

LLVM2.7 - amd64
BEGIN jtreg-summary-zero
cat build/test/jtreg-summary-zero.log
--------------- jtreg console summary for hotspot ---------------
Error: compiler/6851282/Test.java
Error: compiler/6863420/Test.java
Error: compiler/6866651/Test.java
Error: compiler/6901572/Test.java
Error: runtime/6925573/SortMethodsTest.java
FAILED: runtime/6929067/Test6929067.sh
Test results: passed: 100; failed: 1; error: 5
--------------- jtreg console summary for langtools ---------------
FAILED: tools/javac/InterfaceAssert.java
Test results: passed: 1,407; failed: 1
--------------- jtreg console summary for jdk ---------------
END jtreg-summary-zero

LLVM2.9 - amd64
BEGIN jtreg-summary-zero
cat build/test/jtreg-summary-zero.log
--------------- jtreg console summary for hotspot ---------------
Error: compiler/6863420/Test.java
Error: compiler/6866651/Test.java
Error: compiler/6901572/Test.java
Error: runtime/6925573/SortMethodsTest.java
FAILED: runtime/6929067/Test6929067.sh
Test results: passed: 101; failed: 1; error: 4
--------------- jtreg console summary for langtools ---------------
FAILED: tools/javac/InterfaceAssert.java
Test results: passed: 1,407; failed: 1
--------------- jtreg console summary for jdk ---------------
END jtreg-summary-zero

**********
SUMMARY:
No regressions on AMD64; one additional test suite pass.

openjdk-6b18 is only built on armel, and the build-dependencies segfault during install in my qemu schroot. I'll try again on a porter box.

[Chris Halse Rogers (raof)]

I can't do a test-build of openjdk-6b18 because I've been unable to build it from source. Attempting to build in a qemu schroot results in a segfault while configuring the java build-depend, and building on the kakadu porter box segfaults during the build.

So, the status of the reverse-build-depends in main is:
i386 - openjdk-6 - fixes one test failure, introduces a different one
amd64 - openjdk-6 - fixes one test failure
armel - openjdk-6b18 - don't know, doesn't build.

[Chris Halse Rogers (raof)]

Just to be clear - openjdk-6b18 fails to build against both llvm 2.7and llvm 2.9.

[Matthias Klose (doko)]

thanks for checking. will remove either openjdk-6b18, or disable the shark build.

2011-06-16 21:27:30 INFO Override Component to: 'main'
2011-06-16 21:27:30 INFO 'llvm-2.9 - 2.9+dfsg-1/universe/devel' source overridden
2011-06-16 21:27:30 INFO 'libllvm-2.9-ocaml-dev-2.9+dfsg-1/universe/ocaml/OPTIONAL' binary overridden in oneiric/amd64
2011-06-16 21:27:30 INFO 'libllvm-2.9-ocaml-dev-2.9+dfsg-1/universe/ocaml/OPTIONAL' binary overridden in oneiric/armel
2011-06-16 21:27:30 INFO 'libllvm-2.9-ocaml-dev-2.9+dfsg-1/universe/ocaml/OPTIONAL' binary overridden in oneiric/i386
2011-06-16 21:27:30 INFO 'libllvm-2.9-ocaml-dev-2.9+dfsg-1/universe/ocaml/OPTIONAL' binary overridden in oneiric/powerpc
2011-06-16 21:27:30 INFO 'libllvm2.9-2.9+dfsg-1/universe/libs/OPTIONAL' binary overridden in oneiric/amd64
2011-06-16 21:27:30 INFO 'libllvm2.9-2.9+dfsg-1/universe/libs/OPTIONAL' binary overridden in oneiric/armel
2011-06-16 21:27:30 INFO 'libllvm2.9-2.9+dfsg-1/universe/libs/OPTIONAL' binary overridden in oneiric/i386
2011-06-16 21:27:30 INFO 'libllvm2.9-2.9+dfsg-1/universe/libs/OPTIONAL' binary overridden in oneiric/powerpc
2011-06-16 21:27:30 INFO 'llvm-2.9-2.9+dfsg-1/universe/devel/OPTIONAL' binary overridden in oneiric/amd64
2011-06-16 21:27:30 INFO 'llvm-2.9-2.9+dfsg-1/universe/devel/OPTIONAL' binary overridden in oneiric/armel
2011-06-16 21:27:30 INFO 'llvm-2.9-2.9+dfsg-1/universe/devel/OPTIONAL' binary overridden in oneiric/i386
2011-06-16 21:27:30 INFO 'llvm-2.9-2.9+dfsg-1/universe/devel/OPTIONAL' binary overridden in oneiric/powerpc
2011-06-16 21:27:30 INFO 'llvm-2.9-dev-2.9+dfsg-1/universe/devel/OPTIONAL' binary overridden in oneiric/amd64
2011-06-16 21:27:30 INFO 'llvm-2.9-dev-2.9+dfsg-1/universe/devel/OPTIONAL' binary overridden in oneiric/armel
2011-06-16 21:27:30 INFO 'llvm-2.9-dev-2.9+dfsg-1/universe/devel/OPTIONAL' binary overridden in oneiric/i386
2011-06-16 21:27:30 INFO 'llvm-2.9-dev-2.9+dfsg-1/universe/devel/OPTIONAL' binary overridden in oneiric/powerpc
2011-06-16 21:27:30 INFO 'llvm-2.9-doc-2.9+dfsg-1/universe/doc/OPTIONAL' binary overridden in oneiric/amd64
2011-06-16 21:27:30 INFO 'llvm-2.9-doc-2.9+dfsg-1/universe/doc/OPTIONAL' binary overridden in oneiric/armel
2011-06-16 21:27:30 INFO 'llvm-2.9-doc-2.9+dfsg-1/universe/doc/OPTIONAL' binary overridden in oneiric/i386
2011-06-16 21:27:30 INFO 'llvm-2.9-doc-2.9+dfsg-1/universe/doc/OPTIONAL' binary overridden in oneiric/powerpc
2011-06-16 21:27:31 INFO 'llvm-2.9-examples-2.9+dfsg-1/universe/doc/OPTIONAL' binary overridden in oneiric/amd64
2011-06-16 21:27:31 INFO 'llvm-2.9-examples-2.9+dfsg-1/universe/doc/OPTIONAL' binary overridden in oneiric/armel
2011-06-16 21:27:31 INFO 'llvm-2.9-examples-2.9+dfsg-1/universe/doc/OPTIONAL' binary overridden in oneiric/i386
2011-06-16 21:27:31 INFO 'llvm-2.9-examples-2.9+dfsg-1/universe/doc/OPTIONAL' binary overridden in oneiric/powerpc
2011-06-16 21:27:31 INFO 'llvm-2.9-runtime-2.9+dfsg-1/universe/devel/OPTIONAL' binary overridden in oneiric/amd64
2011-06-16 21:27:31 INFO 'llvm-2.9-runtime-2.9+dfsg-1/universe/devel/OPTIONAL' binary overridde...