[panda-users] Compilation issue

Fabien Dombard dombard at synhetik.com
Mon Dec 14 10:56:48 EST 2015


@Manolis: Thanks! I missed this part from the docs, also missed to then run with "-replay <record name>" and not "-replay <record name>.rr".

@Brendan: I've been running panda_install.bash, which ended into an error:

Found PANDA LLVM on ../llvm -- LLVM SUPPORT IS ENABLED
ERROR
ERROR: User requested feature llvm (required for --enable-llvm)
ERROR: configure was not able to find it
ERROR

Btw debian's distorm3 package works absolutely fine, just added -L/usr/lib and -I/usr/lib/include/distorm3 into build.sh.
At this point I expect Panda to work fine, I can replay traces I've downloaded from rrshare, so let see how it goes from here.

Thanks!
Fabien
  
On Mon, Dec 14, 2015 at 10:24:01AM -0500, Brendan Dolan-Gavitt wrote:
> Yes, Manolis is correct about needing to unpack them first.
> 
> As for the compilation issue ??? could you try (just so we have a clean
> baseline) cloning PANDA into a new directory and running "bash
> panda_install.bash" to install?
> 
> -Brendan
> 
> On Mon, Dec 14, 2015 at 9:44 AM, Manolis Stamatogiannakis
> <mstamat at gmail.com> wrote:
> > Hi Fabien,
> >
> > IIRC, .rr traces are compressed and you need to run rrunpack.py to
> > decompress them before processing.
> >
> > Cheers,
> > M.
> >
> >
> > 2015-12-14 14:18 GMT+01:00 Fabien Dombard <dombard at synhetik.com>:
> >>
> >> Hi,
> >> I've been apparenly building succesfully Panda on a Debian 8 at work, only
> >> difference is gcc/g++ 4.8 this time.
> >> However I have an issue replaying anything from rrshare, is that a trace
> >> format incompatibility or sommeting with regard to my build?
> >>
> >> $ /home/user/panda/qemu/x86_64-softmmu/qemu-system-x86_64 -m 1024 -replay
> >> spotify.rr
> >> loading snapshot
> >> qemu-system-x86_64: Could not open VM state file
> >> ... done.
> >> opening nondet log for read :   ./spotify.rr-rr-nondet.log
> >> RR rr_assertion `rr_nondet_log->fp != NULL' failed at
> >> /home/user/panda/qemu/rr_log.c:1322
> >> Current log point:
> >> <queue empty>
> >> Current replay point:
> >> {guest_instr_count=0 pc=0x00000000, secondary=0x00000000}
> >>
> >> Thanks!
> >> Fabien
> >>
> >> On Thu, Dec 10, 2015 at 10:54:05AM +0100, Fabien Dombard wrote:
> >> > Hi Brendan,
> >> >
> >> > $ dpkg -l | grep -i llvm
> >> > ii  libc++-dev:amd64                      3.5-2
> >> > amd64        LLVM C++ Standard library (development files)
> >> > ii  libc++-helpers                        3.5-2
> >> > all          LLVM C++ Standard library - build helpers
> >> > ii  libc++1:amd64                         3.5-2
> >> > amd64        LLVM C++ Standard library
> >> >
> >> > I've compiled locally llvm 3.3 as per the instructions found within the
> >> > docs/compile.md.
> >> > I also been checking the panda_install.bash and have all necessary
> >> > dependencies, it fails on the build.sh step.
> >> > Thanks,
> >> > Fabien
> >> >
> >> > On Wed, Dec 09, 2015 at 04:06:36PM -0800, Brendan Dolan-Gavitt wrote:
> >> > > Hi,
> >> > >
> >> > > Could you try using the panda_install.bash script to install? It looks
> >> > > like you may be using multiple different versions of LLVM on your
> >> > > system.
> >> > >
> >> > > -Brendan
> >> > >
> >> > > On Wed, Dec 9, 2015 at 1:30 AM, Fabien Dombard <dombard at synhetik.com>
> >> > > wrote:
> >> > > > Hi List,
> >> > > > I am new to Panda and trying to compile it natively on my
> >> > > > workstation.
> >> > > > Currently trying with  llvm3.3 from sources within the llvm
> >> > > > directory and gcc/g++ 4.9 on debian x86_64.
> >> > > >
> >> > > > This is what I get when running the build.sh script:
> >> > > >
> >> > > > 386-softmmu/llvm-helpers.bc1
> >> > > > WARNING: Linking two modules of different target triples:
> >> > > > fpu/softfloat.bc2: 'x86_64-pc-linux-gnu' and 'x86_64-unknown-linux-gnu'
> >> > > > 0  llvm-link       0x000000000064a342
> >> > > > 1  llvm-link       0x0000000000649fac
> >> > > > 2  libpthread.so.0 0x00002ab9896ea8d0
> >> > > > 3  llvm-link       0x0000000000546718
> >> > > > 4  llvm-link       0x0000000000546731
> >> > > > 5  llvm-link       0x000000000060222f
> >> > > > 6  llvm-link       0x0000000000605354
> >> > > > 7  llvm-link       0x00000000006058e2
> >> > > > 8  llvm-link       0x0000000000605d32
> >> > > > 9  llvm-link       0x0000000000609716
> >> > > > 10 llvm-link       0x00000000005eca3f
> >> > > > 11 llvm-link       0x00000000005ecfab
> >> > > > 12 llvm-link       0x00000000005ed1fe
> >> > > > 13 llvm-link       0x000000000060bdb9
> >> > > > 14 llvm-link       0x000000000040b06f
> >> > > > 15 libc.so.6       0x00002ab98a3afb45 __libc_start_main + 245
> >> > > > 16 llvm-link       0x000000000040d8b2
> >> > > > Stack dump:
> >> > > > 0.      Program arguments:
> >> > > > /home/user/panda/llvm/Release/bin/llvm-link -o llvm-helpers.bc1
> >> > > > op_helper.bc2 fpu/softfloat.bc2 helper.bc2 host-utils.bc2
> >> > > > 1.      Running pass 'Function Pass Manager' on module
> >> > > > 'op_helper.bc2'.
> >> > > > 2.      Running pass 'Module Verifier' on function
> >> > > > '@int32_to_float64'
> >> > > > Segmentation fault
> >> > > >
> >> > > > Any help would be welcome!
> >> > > > Thanks,
> >> > > > Fabien
> >> > > > _______________________________________________
> >> > > > panda-users mailing list
> >> > > > panda-users at mit.edu
> >> > > > http://mailman.mit.edu/mailman/listinfo/panda-users
> >> > _______________________________________________
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