Bug#610585: llvm-2.7: LLVM bitcode files do not execute directly

[Lenard Lindstrom]

Package: llvm-2.7
Version: 2.7-6
Severity: normal

The llvm-2.7 installer sets up the binfmt_misc module with the wrong magic
number.

~/Projects/llvm$ cat /proc/sys/fs/binfmt_misc/llvm-2.7.binfmt
enabled
interpreter /usr/bin/lli-2.7
flags:
offset 0
magic 6c6c7663
~/Projects/llvm$ llvm-as-2.7 hello.ll
~/Projects/llvm$ chmod u+x hello.bc
~/Projects/llvm$ ls -l hello.bc
-rwxr--r-- 1 lenard lenard 348 Jan 19 18:15 hello.bc
~/Projects/llvm$ ./hello.bc
bash: ./hello.bc: cannot execute binary file

The correct magic number is 'BC'.

~/Projects/llvm$ hexdump -Cn 4 hello.bc
00000000  42 43 c0 de                                       |BC..|
00000004

~# update-binfmts --install llvm /usr/bin/lli-2.7 --magic 'BC'

~/Projects/llvm$ cat /proc/sys/fs/binfmt_misc/llvm
enabled
interpreter /usr/bin/lli-2.7
flags:
offset 0
magic 4243
~/Projects/llvm$ ./hello.bc
hello world




-- System Information:
Debian Release: 6.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-686 (SMP w/1 CPU core)
Locale: LANG=en_CA.utf8, LC_CTYPE=en_CA.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages llvm-2.7 depends on:
ii  libc6                         2.11.2-7   Embedded GNU C Library: Shared lib
ii  libffi5                       3.0.9-3    Foreign Function Interface library
ii  libgcc1                       1:4.4.5-8  GCC support library
ii  libllvm2.7                    2.7-6      Low-Level Virtual Machine (LLVM), 
ii  libstdc++6                    4.4.5-8    The GNU Standard C++ Library v3
ii  llvm-2.7-runtime              2.7-6      Low-Level Virtual Machine (LLVM), 

Versions of packages llvm-2.7 recommends:
ii  llvm-2.7-dev                  2.7-6      Low-Level Virtual Machine (LLVM), 

Versions of packages llvm-2.7 suggests:
ii  llvm-2.7-doc                  2.7-6      Low-Level Virtual Machine (LLVM), 

-- no debconf information