I got the same message: LLVM ERROR: Code generator does not support intrinsic function 'llvm.objectsize.i32'! So theres no existing solution to this?
On Sat, Sep 21, 2013 at 3:40 PM, Daniel Liew <[email protected]>wrote: > You're done. gzip.bc is a single LLVM module that is equivalent to the > gzip binary. Now you just need to run KLEE on it. > > e.g. > > $ klee --libc=uclibc --posix-runtime gzip.bc --help > KLEE: NOTE: Using model: > /data/dev/KLEE/klee/bin-dbg/Release+Asserts/lib/libkleeRuntimePOSIX.bca > KLEE: output directory = "klee-out-1" > LLVM ERROR: Code generator does not support intrinsic function > 'llvm.objectsize.i64'! > > I should note that this does not work on my machine because of missing > support for a particular LLVM intrinsic function. You'll need to add > support for it: > http://llvm.org/docs/LangRef.html#llvm-objectsize-intrinsic > > A developer recently added support for another intrinsic so you could > use this as an example ( https://github.com/ccadar/klee/pull/27 ) > > If you get it working please consider contributing your code back to > the project so others can benefit. > > Thanks, > Dan Liew. > > > On 21 September 2013 10:36, Saikat Dutta <[email protected]> > wrote: > > I upgraded to python 2.7 > > "extract-bc gzip" produced gzip.bc > > what to do next? > > > > > > On Sat, Sep 21, 2013 at 2:20 PM, Daniel Liew <[email protected] > > > > wrote: > >> > >> Oh I forgot to mention that if you really don't feel like upgrading > >> you could just modify the extract-bc python script by removing the use > >> of argparse from the main() function and setting > >> > >> inputFile = sys.argv[1] > >> > >> On 20 September 2013 17:58, Daniel Liew <[email protected]> > >> wrote: > >> > Your python install is too old (the argparse module was introduced in > >> > python2.7) you need python 2.7 or later. You can find your current > >> > python version by running > >> > > >> > $ python --version > >> > > >> > I think you said you were using Ubuntu 10.04 in which case the python > >> > version is probably 2.6.5 . Unless you have a good reason to be > >> > running such an old version of python (or Ubuntu for that matter) you > >> > should upgrade. > >> > > >> > > >> > On 20 September 2013 17:50, Saikat Dutta < > [email protected]> > >> > wrote: > >> >> Hi, > >> >> At the "extract-bc gzip" stage following error is produced: > >> >> > >> >> Traceback (most recent call last): > >> >> File > >> >> > >> >> > "/home/saikat/Downloads/llvm_new/whole-program-llvm-llvm-gcc/extract-bc", > >> >> line 269, in <module> > >> >> sys.exit(main(sys.argv)) > >> >> File > >> >> > >> >> > "/home/saikat/Downloads/llvm_new/whole-program-llvm-llvm-gcc/extract-bc", > >> >> line 212, in main > >> >> import argparse > >> >> ImportError: No module named argparse > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> On Fri, Sep 20, 2013 at 10:09 PM, Daniel Liew > >> >> <[email protected]> > >> >> wrote: > >> >>> > >> >>> On 20 September 2013 17:15, Saikat Dutta > >> >>> <[email protected]> > >> >>> wrote: > >> >>> > Hi, > >> >>> > Everything goes fine with wllvm according to the way you described > >> >>> > in > >> >>> > the > >> >>> > previous mail. No errors till make step. > >> >>> > >> >>> If you don't tell us what the errors are we will **not** be able to > >> >>> help you. If you see an error tell us what it is. > >> >>> > >> >>> > But instead of "gzip.bc" or > >> >>> > "gzip.o.bc" , ".gzip.o.bc" is being formed. > >> >>> > >> >>> .gzip.o.bc is a LLVM bitcode file that corresponds to the gzip.o > >> >>> object file (this mostly likely corresponds with gzip.c) . It is > >> >>> **not** the finally linked executable. You are only supposed to run > >> >>> extract-bc on the the finally linked executable (or on static > >> >>> libraries) **not** on object files. > >> >>> > >> >>> I just tried this and it works fine. You should run extract-bc on > the > >> >>> "gzip" executable. > >> >>> > >> >>> # I assume you have llvm-gcc in your path and it was the pre-built > >> >>> binary llvm-gcc 4.2 > >> >>> > >> >>> $ export LLVM_COMPILER=llvm-gcc > >> >>> $ export WLLVM_OUTPUT=WARNING > >> >>> $ export > >> >>> > LLVM_COMPILER_PATH=/your/path/to/the/llvm2.9/build/Release+Asserts/bin > >> >>> $ wget http://ftp.gnu.org/gnu/gzip/gzip-1.6.tar.xz > >> >>> $ tar -xvf gzip-1.6.tar.xz > >> >>> $ cd gzip-1.6 > >> >>> $ CC=wllvm ./configure > >> >>> $ make -j4 > >> >>> $ extract-bc gzip > >> >>> > >> >>> # gzip.bc will now be in the current directory > >> >>> > >> >>> > When I use extract bc on it, > >> >>> > error is generated. Please help. > >> >>> > -Saikat > >> >>> > >> >>> Again... If there is an error message tell us what it is. > >> >>> > >> >>> Hope that helps. > >> >>> > >> >>> Dan. > >> >> > >> >> > > > > >
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