Hello LLVM,
I am following the document "Writing an LLVM Pass". When I ran
"opt -load
../../../Debug/lib/MyPass.so -mypass < hello.bc > /dev/null" I got
the next
error:
***@ubuntu:~/test$ opt -load ../../llvm/Debug/lib/MyPass.so -mypass <
hello.bc > /dev/null
opt: Pass.cpp:159: void<unnamed>::PassRegistrar::RegisterPass(const
llvm::PassInfo&): Assertion `Inserted && "Pass registered
multiple times!"'
failed.
Aborted
To compile MyPass I used "make" command instead of "gmake",
could it be the
problem? Or maybe I just type (copy) something wrong? Could someone take a
look of my files and point my errors out?
Thanks in advance,
Juan Carlos
*****************
*** Makefile ***
*****************
LEVEL = ../../..
LIBRARYNAME = MyPass
LOADABLE_MODULE = 1
LLVMLIBS = LLVMCore.a LLVMSupport.a LLVMSystem.a
include $(LEVEL)/Makefile.common
**********************
*** MyPass.cpp ***
**********************
#include "llvm/Pass.h"
#include "llvm/Function.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
namespace {
struct MyPass : public FunctionPass {
static char ID;
MyPass() : FunctionPass(&ID) {}
virtual bool runOnFunction(Function &F) {
errs() << "MyPass: " << F.getName() <<
"\n";
return false;
}
}; // end of struct MyPass
char MyPass::ID = 0;
RegisterPass<MyPass> X("mypass", "My first Pass",
false /* Only looks at CFG */,
false /* Analysis Pass */);
} // end of anonymous namespace
--
Juan Carlos
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Juan Carlos Martinez Santos wrote:> Hello LLVM, > > I am following the document "Writing an LLVM Pass". When I ran "opt > -load ../../../Debug/lib/MyPass.so -mypass < hello.bc > /dev/null" I > got the next error: > > ***@ubuntu:~/test$ opt -load ../../llvm/Debug/lib/MyPass.so -mypass < > hello.bc > /dev/null > opt: Pass.cpp:159: void<unnamed>::PassRegistrar::RegisterPass(const > llvm::PassInfo&): Assertion `Inserted && "Pass registered multiple > times!"' failed. > AbortedI don't see any obvious problems with your source code. Are you compiling this file as part of your own project, or did you add it to your LLVM source tree (e.g., placing MyPass.cpp into lib/Transforms in the LLVM source tree)? If you did the latter, it's possible that your pass is being compiled into the opt program automatically by the LLVM build system, and so when you do a -load of your dynamic library, you get your pass defined twice. An easy way to test this is to run opt --help-hidden and see if "mypass" is in the list. -- John T.> > To compile MyPass I used "make" command instead of "gmake", could it > be the problem? Or maybe I just type (copy) something wrong? Could > someone take a look of my files and point my errors out? > > Thanks in advance, > > Juan Carlos > > ***************** > *** Makefile *** > ***************** > LEVEL = ../../.. > LIBRARYNAME = MyPass > LOADABLE_MODULE = 1 > LLVMLIBS = LLVMCore.a LLVMSupport.a LLVMSystem.a > include $(LEVEL)/Makefile.common > > ********************** > *** MyPass.cpp *** > ********************** > #include "llvm/Pass.h" > #include "llvm/Function.h" > #include "llvm/Support/raw_ostream.h" > > using namespace llvm; > > namespace { > struct MyPass : public FunctionPass { > > static char ID; > MyPass() : FunctionPass(&ID) {} > > virtual bool runOnFunction(Function &F) { > errs() << "MyPass: " << F.getName() << "\n"; > return false; > } > }; // end of struct MyPass > > char MyPass::ID = 0; > RegisterPass<MyPass> X("mypass", "My first Pass", > false /* Only looks at CFG */, > false /* Analysis Pass */); > } // end of anonymous namespace > > > -- > Juan Carlos
Thanks John, I was just following the instructions; I created a new folder inside of llvm (/lib/Trasnforms/MyPass). After I run opt --help-hidden, I didn't see mypass. However, I found that if I remove the LLVMLIBS (LLVMCore.a LLVMSupport.a LLVMSystem.a) from the Makefile, the pass works. I found that after comparing Hello folder (llvm tree) with the information in the website. Now, it is working as I expected. Thanks again, Juan Carlos On Tue, Dec 15, 2009 at 4:13 PM, John Criswell <criswell at cs.uiuc.edu> wrote:> Juan Carlos Martinez Santos wrote: > >> Hello LLVM, >> >> I am following the document "Writing an LLVM Pass". When I ran "opt -load >> ../../../Debug/lib/MyPass.so -mypass < hello.bc > /dev/null" I got the next >> error: >> >> ***@ubuntu:~/test$ opt -load ../../llvm/Debug/lib/MyPass.so -mypass < >> hello.bc > /dev/null >> opt: Pass.cpp:159: void<unnamed>::PassRegistrar::RegisterPass(const >> llvm::PassInfo&): Assertion `Inserted && "Pass registered multiple times!"' >> failed. >> Aborted >> > I don't see any obvious problems with your source code. > > Are you compiling this file as part of your own project, or did you add it > to your LLVM source tree (e.g., placing MyPass.cpp into lib/Transforms in > the LLVM source tree)? If you did the latter, it's possible that your pass > is being compiled into the opt program automatically by the LLVM build > system, and so when you do a -load of your dynamic library, you get your > pass defined twice. > > An easy way to test this is to run opt --help-hidden and see if "mypass" is > in the list. > > -- John T. > > > >> To compile MyPass I used "make" command instead of "gmake", could it be >> the problem? Or maybe I just type (copy) something wrong? Could someone take >> a look of my files and point my errors out? >> >> Thanks in advance, >> >> Juan Carlos >> >> ***************** >> *** Makefile *** >> ***************** >> LEVEL = ../../.. >> LIBRARYNAME = MyPass >> LOADABLE_MODULE = 1 >> LLVMLIBS = LLVMCore.a LLVMSupport.a LLVMSystem.a >> include $(LEVEL)/Makefile.common >> >> ********************** >> *** MyPass.cpp *** >> ********************** >> #include "llvm/Pass.h" >> #include "llvm/Function.h" >> #include "llvm/Support/raw_ostream.h" >> >> using namespace llvm; >> >> namespace { >> struct MyPass : public FunctionPass { >> >> static char ID; >> MyPass() : FunctionPass(&ID) {} >> >> virtual bool runOnFunction(Function &F) { >> errs() << "MyPass: " << F.getName() << "\n"; >> return false; >> } >> }; // end of struct MyPass >> >> char MyPass::ID = 0; >> RegisterPass<MyPass> X("mypass", "My first Pass", >> false /* Only looks at CFG */, >> false /* Analysis Pass */); >> } // end of anonymous namespace >> >> >> -- >> Juan Carlos >> > >-- Juan Carlos -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20091215/594817f9/attachment.html>