llvm dev - Jun 2010 - [LLVMdev] Getting rid of the dangling names of functions

Hi all,

I am a beginner in llvm trying to write some basic passes like printing the
name of all the functions in "Hello.cpp" file attached underneath.
Also find
attached "hello.cpp" on which i am testing the pass .When i run the
command:
"opt -load $HOME/llvm/src/Debug/lib/TEMP.so -hello < hello.bc >
/dev/null"
.The output shown is

Hello: _GLOBAL__I_x
Hello: main
Hello: _Z4rajuif
Hello: _Z4brtyv
Hello: _Z4rajui
Hello: __tcf_0

But we want output to be

Hello: main
Hello: raju
Hello: brty
Hello: raju

How can we get this ..??
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The names are mangled according the the C++ name mangling rules of
your platform.  Try piping the output through c++filt.

Reid

On Thu, Jun 3, 2010 at 7:04 AM, RAHUL GOYAL <rahulgoyal34 at gmail.com>
wrote:
> Hi all,
>
> I am a beginner in llvm trying to write some basic passes like printing the
> name of all the functions in "Hello.cpp" file attached
underneath. Also find
> attached "hello.cpp" on which i am testing the pass .When i run
the command:
> "opt -load $HOME/llvm/src/Debug/lib/TEMP.so -hello < hello.bc >
/dev/null"
> .The output shown is
>
> Hello: _GLOBAL__I_x
> Hello: main
> Hello: _Z4rajuif
> Hello: _Z4brtyv
> Hello: _Z4rajui
> Hello: __tcf_0
>
> But we want output to be
>
> Hello: main
> Hello: raju
> Hello: brty
> Hello: raju
>
> How can we get this ..??
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>

You're seeing the mangled names since you're compiling a C++ file, so
you'll need to run them through a demangler to get the names used in the
source code. There's one in libstdc++, I believe.

On Jun 3, 2010, at 4:04 AM, RAHUL GOYAL wrote:
> Hi all,
> 
> I am a beginner in llvm trying to write some basic passes like printing the
name of all the functions in "Hello.cpp" file attached underneath.
Also find attached "hello.cpp" on which i am testing the pass .When i
run the command:
> "opt -load $HOME/llvm/src/Debug/lib/TEMP.so -hello < hello.bc >
/dev/null" .The output shown is
> 
> Hello: _GLOBAL__I_x
> Hello: main
> Hello: _Z4rajuif
> Hello: _Z4brtyv
> Hello: _Z4rajui
> Hello: __tcf_0
> 
> But we want output to be 
> 
> Hello: main
> Hello: raju
> Hello: brty
> Hello: raju
> 
> How can we get this ..??
>
<Hello.cpp><hello.cpp>_______________________________________________
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