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Andrew Selvia

2015-Feb-18 09:17 UTC

[LLVMdev] Building LLVM on OS X Yosemite & Passes

I want to create LLVM passes on OS X Yosemite. First, I built LLVM as such
(based on http://llvm.org/docs/GettingStarted.html
<http://llvm.org/docs/GettingStarted.html> and trial & error):

...
$ mkdir build && cd build
$ CC=clang CXX="clang++ -stdlib=libc++" ../llvm/configure
--enable-libcpp --enable-shared
$ make
$ make install

Then, I tested it with the following command. It worked!

$ opt -load /usr/local/lib/LLVMHello.dylib -hello <test.bc>/dev/null

However, when attempting to build my own pass in OS X Yosemite, I ran into
confusing linking problems:

$ c++ $(CXXFLAGS) SourceLineAnnotator.cpp -c -o SourceLineAnnotator.o
$ c++ SourceLineAnnotator.o -shared -o annotate.so

Undefined symbols for architecture x86_64:
  "llvm::ModulePass::assignPassManager(llvm::PMStack&,
llvm::PassManagerType)", referenced from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::ModulePass::~ModulePass()", referenced from:
      cs380c::SourceLineAnnotator::~SourceLineAnnotator() in
SourceLineAnnotator.o
  "llvm::raw_ostream::write(char const*, unsigned long)", referenced
from:
      llvm::raw_ostream::operator<<(llvm::StringRef) in
SourceLineAnnotator.o
  "llvm::raw_ostream::operator<<(unsigned long)", referenced
from:
      llvm::raw_ostream::operator<<(unsigned int) in SourceLineAnnotator.o
  "llvm::PassRegistry::registerPass(llvm::PassInfo const&, bool)",
referenced from:
      llvm::RegisterPass<cs380c::SourceLineAnnotator>::RegisterPass(char
const*, char const*, bool, bool) in SourceLineAnnotator.o
  "llvm::PassRegistry::getPassRegistry()", referenced from:
      llvm::RegisterPass<cs380c::SourceLineAnnotator>::RegisterPass(char
const*, char const*, bool, bool) in SourceLineAnnotator.o
  "llvm::AssemblyAnnotationWriter::~AssemblyAnnotationWriter()",
referenced from:
      SourceLineAssemblyAnnotationWriter::~SourceLineAssemblyAnnotationWriter()
in SourceLineAnnotator.o
  "llvm::Pass::releaseMemory()", referenced from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::Pass::dumpPassStructure(unsigned int)", referenced from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::Pass::getAsImmutablePass()", referenced from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::Pass::getAsPMDataManager()", referenced from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::Pass::preparePassManager(llvm::PMStack&)", referenced
from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::Pass::getAdjustedAnalysisPointer(void const*)", referenced
from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::outs()", referenced from:
      cs380c::SourceLineAnnotator::runOnModule(llvm::Module&) in
SourceLineAnnotator.o
  "llvm::ModulePass::createPrinterPass(llvm::raw_ostream&,
std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> > const&) const", referenced from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::ModulePass::getPotentialPassManagerType() const", referenced
from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::Instruction::getMetadataImpl(llvm::StringRef) const",
referenced from:
      llvm::Instruction::getMetadata(llvm::StringRef) const in
SourceLineAnnotator.o
  "llvm::Pass::getPassName() const", referenced from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::Pass::verifyAnalysis() const", referenced from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::Pass::print(llvm::raw_ostream&, llvm::Module const*)
const", referenced from:
      vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
  "llvm::Module::print(llvm::raw_ostream&,
llvm::AssemblyAnnotationWriter*) const", referenced from:
      cs380c::SourceLineAnnotator::runOnModule(llvm::Module&) in
SourceLineAnnotator.o
  "vtable for llvm::ModulePass", referenced from:
      llvm::ModulePass::ModulePass(char&) in SourceLineAnnotator.o
  NOTE: a missing vtable usually means the first non-inline virtual member
function has no definition.
  "vtable for llvm::AssemblyAnnotationWriter", referenced from:
      llvm::AssemblyAnnotationWriter::AssemblyAnnotationWriter() in
SourceLineAnnotator.o
  NOTE: a missing vtable usually means the first non-inline virtual member
function has no definition.
  "vtable for llvm::Pass", referenced from:
      llvm::Pass::Pass(llvm::PassKind, char&) in SourceLineAnnotator.o
  NOTE: a missing vtable usually means the first non-inline virtual member
function has no definition.
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [annotate.so] Error 1

Eventually, I discovered the .so file could be successfully compiled as follows:

$ c++ SourceLineAnnotator.o -shared `/usr/local/bin/llvm-config --ldflags --libs
--system-libs` -o annotate.so

By adding the flags specified, I can now compile the pass to a .so file.
However, when I attempt to load it with opt, I get another type of error (also
related to linking from what I can tell):

$ opt -load annotate.so -annotate <test.bc>/dev/null

opt: CommandLine Error: Option 'print-before-all' registered more than
once!
LLVM ERROR: inconsistency in registered CommandLine options

I’m quite stuck. I have fought with linker errors for weeks now and I’m not sure
what to try. Any help would be greatly appreciated.

Andrew Selvia
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serge guelton

2015-Feb-18 10:23 UTC

head link

[LLVMdev] Building LLVM on OS X Yosemite & Passes

On Wed, Feb 18, 2015 at 03:17:44AM -0600, Andrew Selvia
wrote:> I want to create LLVM passes on OS X Yosemite. First, I built LLVM as such
(based on http://llvm.org/docs/GettingStarted.html
<http://llvm.org/docs/GettingStarted.html> and trial & error):
> 
> ...
> $ mkdir build && cd build
> $ CC=clang CXX="clang++ -stdlib=libc++" ../llvm/configure
--enable-libcpp --enable-shared
> $ make
> $ make install
> 
> Then, I tested it with the following command. It worked!
> 
> $ opt -load /usr/local/lib/LLVMHello.dylib -hello <test.bc>/dev/null
> 
> However, when attempting to build my own pass in OS X Yosemite, I ran into
confusing linking problems:
> 
> $ c++ $(CXXFLAGS) SourceLineAnnotator.cpp -c -o SourceLineAnnotator.o
> $ c++ SourceLineAnnotator.o -shared -o annotate.so
> 
I have no trouble building my passes with the following commands:

$> /usr/bin/c++ $CPPFLAGS -std=c++11 -fno-rtti -fPIC  -fno-exceptions
-fno-rtti -o my.o -c my.cpp
$> /usr/bin/c++ -std=c++11 -fno-rtti -fPIC  -std=c++11 -bundle
-Wl,-headerpad_max_install_names  -Wl,-dead_strip  -Wl,-flat_namespace
-Wl,-undefined -Wl,suppress -o my.dylib my.o

This command was generated by cmake thanks to the LLVM config...



[...]
> Eventually, I discovered the .so file could be successfully compiled as
follows:
> 
> $ c++ SourceLineAnnotator.o -shared `/usr/local/bin/llvm-config --ldflags
--libs --system-libs` -o annotate.so
> 
> By adding the flags specified, I can now compile the pass to a .so file.
However, when I attempt to load it with opt, I get another type of error (also
related to linking from what I can tell):
> 
> $ opt -load annotate.so -annotate <test.bc>/dev/null
> 
> opt: CommandLine Error: Option 'print-before-all' registered more
than once!
> LLVM ERROR: inconsistency in registered CommandLine options
You get this error because you're linking statically with some LLVM core
libs (from the /usr/local/bin/llvm-config --ldflags --libs --system-libs). They
have static conbstructors that register options, and those have already been
registered when liked within opt.
> I’m quite stuck. I have fought with linker errors for weeks now and I’m not
sure what to try. Any help would be greatly appreciated.

Cristianno Martins

2015-Feb-19 00:01 UTC

head link

[LLVMdev] Building LLVM on OS X Yosemite & Passes

--
Cristianno Martins
PhD Student of Computer Science
University of Campinas
cmartins at ic.unicamp.br
<cristiannomartins at hotmail.com>

On Wed, Feb 18, 2015 at 7:17 AM, Andrew Selvia <andrew.selvia at
icloud.com>
wrote:
> I want to create LLVM passes on OS X Yosemite. First, I built LLVM as such
> (based on http://llvm.org/docs/GettingStarted.html and trial & error):
>
> ...
> $ mkdir build && cd build
> $ CC=clang CXX="clang++ -stdlib=libc++" ../llvm/configure
--enable-libcpp
> --enable-shared
> $ make
> $ make install
>
> Then, I tested it with the following command. It worked!
>
> $ opt -load /usr/local/lib/LLVMHello.dylib -hello <test.bc>/dev/null
>
> However, when attempting to build my own pass in OS X Yosemite, I ran into
> confusing linking problems:
>
> $ c++ $(CXXFLAGS) SourceLineAnnotator.cpp -c -o SourceLineAnnotator.o
> $ c++ SourceLineAnnotator.o -shared -o annotate.so
>
> Undefined symbols for architecture x86_64:
>   "llvm::ModulePass::assignPassManager(llvm::PMStack&,
> llvm::PassManagerType)", referenced from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::ModulePass::~ModulePass()", referenced from:
>       cs380c::SourceLineAnnotator::~SourceLineAnnotator() in
> SourceLineAnnotator.o
>   "llvm::raw_ostream::write(char const*, unsigned long)",
referenced from:
>       llvm::raw_ostream::operator<<(llvm::StringRef) in
> SourceLineAnnotator.o
>   "llvm::raw_ostream::operator<<(unsigned long)",
referenced from:
>       llvm::raw_ostream::operator<<(unsigned int) in
SourceLineAnnotator.o
>   "llvm::PassRegistry::registerPass(llvm::PassInfo const&,
bool)",
> referenced from:
>      
llvm::RegisterPass<cs380c::SourceLineAnnotator>::RegisterPass(char
> const*, char const*, bool, bool) in SourceLineAnnotator.o
>   "llvm::PassRegistry::getPassRegistry()", referenced from:
>      
llvm::RegisterPass<cs380c::SourceLineAnnotator>::RegisterPass(char
> const*, char const*, bool, bool) in SourceLineAnnotator.o
>   "llvm::AssemblyAnnotationWriter::~AssemblyAnnotationWriter()",
> referenced from:
>
> SourceLineAssemblyAnnotationWriter::~SourceLineAssemblyAnnotationWriter()
> in SourceLineAnnotator.o
>   "llvm::Pass::releaseMemory()", referenced from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::Pass::dumpPassStructure(unsigned int)", referenced from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::Pass::getAsImmutablePass()", referenced from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::Pass::getAsPMDataManager()", referenced from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::Pass::preparePassManager(llvm::PMStack&)",
referenced from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::Pass::getAdjustedAnalysisPointer(void const*)",
referenced from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::outs()", referenced from:
>       cs380c::SourceLineAnnotator::runOnModule(llvm::Module&) in
> SourceLineAnnotator.o
>   "llvm::ModulePass::createPrinterPass(llvm::raw_ostream&,
> std::__1::basic_string<char, std::__1::char_traits<char>,
> std::__1::allocator<char> > const&) const", referenced
from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::ModulePass::getPotentialPassManagerType() const",
referenced from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::Instruction::getMetadataImpl(llvm::StringRef) const",
referenced
> from:
>       llvm::Instruction::getMetadata(llvm::StringRef) const in
> SourceLineAnnotator.o
>   "llvm::Pass::getPassName() const", referenced from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::Pass::verifyAnalysis() const", referenced from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::Pass::print(llvm::raw_ostream&, llvm::Module const*)
const",
> referenced from:
>       vtable for cs380c::SourceLineAnnotator in SourceLineAnnotator.o
>   "llvm::Module::print(llvm::raw_ostream&,
> llvm::AssemblyAnnotationWriter*) const", referenced from:
>       cs380c::SourceLineAnnotator::runOnModule(llvm::Module&) in
> SourceLineAnnotator.o
>   "vtable for llvm::ModulePass", referenced from:
>       llvm::ModulePass::ModulePass(char&) in SourceLineAnnotator.o
>   NOTE: a missing vtable usually means the first non-inline virtual member
> function has no definition.
>   "vtable for llvm::AssemblyAnnotationWriter", referenced from:
>       llvm::AssemblyAnnotationWriter::AssemblyAnnotationWriter() in
> SourceLineAnnotator.o
>   NOTE: a missing vtable usually means the first non-inline virtual member
> function has no definition.
>   "vtable for llvm::Pass", referenced from:
>       llvm::Pass::Pass(llvm::PassKind, char&) in SourceLineAnnotator.o
>   NOTE: a missing vtable usually means the first non-inline virtual member
> function has no definition.
> ld: symbol(s) not found for architecture x86_64
> clang: error: linker command failed with exit code 1 (use -v to see
> invocation)
> make: *** [annotate.so] Error 1
>
> Eventually, I discovered the .so file could be successfully compiled as
> follows:
>
> $ c++ SourceLineAnnotator.o -shared `/usr/local/bin/llvm-config --ldflags
> --libs --system-libs` -o annotate.so
>
> By adding the flags specified, I can now compile the pass to a .so file.
> However, when I attempt to load it with opt, I get another type of error
> (also related to linking from what I can tell):
>
> $ opt -load annotate.so -annotate <test.bc>/dev/null
>
> opt: CommandLine Error: Option 'print-before-all' registered more
than
> once!
> LLVM ERROR: inconsistency in registered CommandLine options
>
> I’m quite stuck. I have fought with linker errors for weeks now and I’m
> not sure what to try. Any help would be greatly appreciated.
>
I've had a similar issue some time ago, and mine was related to the
placement of the CommandLine option on my files. I assume
"print-before-all" is a command line option you're trying to add
to LLVM
through your pass, right? It is probable that you declared that command
inside a header file (this kind of error appears when you do that). Try
moving the definition of print-before-all to a cpp file and compiling your
pass again. That should fix it =)

>
> Andrew Selvia
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
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llvm dev - Feb 2015 - [LLVMdev] Building LLVM on OS X Yosemite & Passes

[LLVMdev] Building LLVM on OS X Yosemite & Passes

[LLVMdev] Building LLVM on OS X Yosemite & Passes

[LLVMdev] Building LLVM on OS X Yosemite & Passes