[LLVMdev] instrument a byte code with llvm

[Nabila ABDESSAIED]

hi,

My work consist in :
1)translating the c code program into a bc code with llvm-gcc (done)
2)write a pass to be used to instrument the bc code resulted from 2 ( i will
use insert block profiling pass so done )
3)Use LLVM's llc program to generate C or assembly code of your instrumented
program (not yet).
4) Compile the C/asm code to native code with gcc and link it with any
native code libraries that it needs.
5) Run the program and gather the information from your instrumentation
instructions.
wihich i find the same with this article


http://old.nabble.com/Determine-branch-coverage-information-td26141617.html#a26440560
but the last command in that article doesn't works fr me:
llvm-prof -print-all-code <executable>.1.bc
llvm-prof: Error opening 'llvmprof.out': No such file or directory

i found that profile.pl which takes a single bytecode file and parameters
could do all the work of instrumenting, running and executing llvm-prof in
one go.
but i try this :

sudo /usr/local/llvm-2.8/utils/profile.pl -edge hello.bc
Error opening '/usr/lib/llvm-2.8/lib/profile_rt.so':
/usr/lib/llvm-2.8/lib/profile_rt.so: cannot open shared object file: No such
file or directory
  -load request ignored.
LLVM ERROR: Program used external function 'llvm_start_edge_profiling' which
could not be resolved!

and when i tried to make each command in the profile.pl  manually step by
step i found this problems

opt -q -f -insert-block-profiling hello.bc -o result.bc.inst
opt: Unknown command line argument '-insert-block-profiling'.  Try: 'opt
-help'


thanks
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