[LLVMdev] LLD dynamic compilation

[Shankar Easwaran]

On 6/30/2014 10:55 AM, Renato Golin wrote:
> On 30 June 2014 16:16, Shankar Easwaran <shankare at codeaurora.org> wrote:
>> I think you are hitting a bug, the Observer pattern was added a few weeks
>> back, and may be there is some sort of uninitialized variable ?
> This is my back-trace at "-O2 -g" (since -O1 pass):
>
> operator() (file=<optimized out>, __closure=0x7fffffffde40) at
> /home/rengolin/devel/llvm/src/llvm/tools/lld/unittests/DriverTests/InputGraphTest.cpp:197
> 197  _graph->registerObserver([&](File *file) {
> files.push_back(file->path()); });
> (gdb) bt
> #0  operator() (file=<optimized out>, __closure=0x7fffffffde40) at
> /home/rengolin/devel/llvm/src/llvm/tools/lld/unittests/DriverTests/InputGraphTest.cpp:197
> #1  llvm::function_ref<void(lld::File*)>::callback_fn<InputGraphTest_Observer_Test::TestBody()::<lambda(lld::File*)>
>> (intptr_t, lld::File *) (callable=140737488346688,
>      param1=<optimized out>) at
> /home/rengolin/devel/llvm/src/llvm/include/llvm/ADT/STLExtras.h:117
> #2  0x00000000005b3ec4 in operator() (param1=<optimized out>,
> this=0xa1e2a0) at
> /home/rengolin/devel/llvm/src/llvm/include/llvm/ADT/STLExtras.h:126
> #3  callback_fn<llvm::function_ref<void(lld::File*)> >
> (param1=<optimized out>, callable=10609312) at
> /home/rengolin/devel/llvm/src/llvm/include/llvm/ADT/STLExtras.h:117
> #4  operator() (param1=<optimized out>, this=<synthetic pointer>) at
> /home/rengolin/devel/llvm/src/llvm/include/llvm/ADT/STLExtras.h:126
> #5  lld::InputGraph::getNextFile (this=<optimized out>) at
> /home/rengolin/devel/llvm/src/llvm/tools/lld/lib/Core/InputGraph.cpp:27
> #6  0x0000000000462a87 in (anonymous
> namespace)::InputGraphTest::getNext (this=0xa1e6b0)
>      at /home/rengolin/devel/llvm/src/llvm/tools/lld/unittests/DriverTests/InputGraphTest.cpp:64
> #7  0x000000000046c749 in InputGraphTest_Observer_Test::TestBody
> (this=0xa1e6b0) at
> /home/rengolin/devel/llvm/src/llvm/tools/lld/unittests/DriverTests/InputGraphTest.cpp:201
> #8  0x0000000000479bda in testing::Test::Run (this=0xa1e6b0) at
> /home/rengolin/devel/llvm/src/llvm/utils/unittest/googletest/src/gtest.cc:2162
> #9  0x000000000047abd0 in testing::TestInfo::Run (this=0xa1d6f0) at
> /home/rengolin/devel/llvm/src/llvm/utils/unittest/googletest/src/gtest.cc:2309
> #10 0x000000000047adc5 in testing::TestCase::Run (this=0xa1cfe0) at
> /home/rengolin/devel/llvm/src/llvm/utils/unittest/googletest/src/gtest.cc:2416
> #11 0x000000000047fd40 in testing::internal::UnitTestImpl::RunAllTests
> (this=0xa0f140) at
> /home/rengolin/devel/llvm/src/llvm/utils/unittest/googletest/src/gtest.cc:4205
> #12 0x000000000047fff2 in
> HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl,
> bool> (location=<synthetic pointer>,
>      method=(bool
> (testing::internal::UnitTestImpl::*)(testing::internal::UnitTestImpl *
> const)) 0x47faf0 <testing::internal::UnitTestImpl::RunAllTests()>,
> object=0xa0f140)
>      at /home/rengolin/devel/llvm/src/llvm/utils/unittest/googletest/src/gtest.cc:2145
> #13 testing::UnitTest::Run (this=<optimized out>) at
> /home/rengolin/devel/llvm/src/llvm/utils/unittest/googletest/src/gtest.cc:3842
> #14 0x0000000000410796 in main (argc=1, argv=0x7fffffffe0d8) at
> /home/rengolin/devel/llvm/src/llvm/utils/unittest/UnitTestMain/TestMain.cpp:48
Thanks Renato.
>
>
>> On the cyclic dependency there was a recent conversation that was trying to
>> fix this, but I am not sure where it is.
> Is this on llvmdev? Or is there a special lld list?

http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-June/073407.html


Shankar Easwaran

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