[llvm-dev] ORC jit calling a function that uses the stl

Fri Apr 26 11:39:08 PDT 2019

Hi Emmanuel,

JIT session error: Symbols not found: { ??3 at YAXPEAX_K@Z }

This is the important bit. You're right that the rest of the error message
is likely fallout due to this error.

Are you using clang++ to compile that snippet? If so, can you send the
clang version and invocation that you're using?

Cheers,
Lang.

On Mon, Apr 8, 2019 at 12:11 PM Emmanuel Thivierge via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Hi,
>
> I have been trying to use the new ORC jit to execute a c function using
> c++ that was compiled to llvm bytecode (clang++.exe -c -g -emit-llvm
> -std=c++2a -o CxxJit.bc CxxJit.cpp).
> I guess the first thing I need to say is that I am on windows, this could
> explain why I have those issues.
>
> The file to jit is this:
> #include "CxxJit.h"
> #include <stdio.h>
> #include <vector>
>
> extern "C"
> {
>   void doWork()
>   {
>     std::vector<int32_t> vec(10000);
>     printf("doWork() = %d \n", 12);
>   }
> }
>
> Now If I only have the printf everything works but when I try to create a
> std::vector It fails to lookup the symbol. In the error stream I have one
> symbol not found and a bunch of symbol that failed to materialize.
> JIT session error: Symbols not found: { ??3 at YAXPEAX_K@Z }
> Failed to materialize symbols: { ??0?$vector at HV?$allocator at H@std@@@std@
> @QEAA at _KAEBV?$allocator at H@1@@Z, doWork, ?_Myfirst@?$vector at HV?$allocator at H
> @std@@@std@@AEAAAEAPEAHXZ, ??$forward at AEBV?$allocator at H@std@@@std@
> @YAAEBV?$allocator at H@0 at AEBV10@@Z, ?_Get_second@?$_Compressed_pair at V
> ?$allocator at H@std@@V?$_Vector_val at U?$_Simple_types at H@std@@@2@$00 at std
> @@QEAAAEAV?$_Vector_val at U?$_Simple_types at H@std@@@2 at XZ, ?_Tidy@?$vector at HV
> ?$allocator at H@std@@@std@@AEAAXXZ, ?_Orphan_all at _Container_base0@std@@QEAAXXZ,
> ??1?$vector at HV?$allocator at H@std@@@std@@QEAA at XZ, ??$?0AEBV?$allocator at H
> @std@@$$V@?$_Compressed_pair at V?$allocator at H@std@@V?$_Vector_val at U
> ?$_Simple_types at H@std@@@2@$00 at std@@QEAA at U_One_then_variadic_args_t@1 at AEBV
> ?$allocator at H@1@@Z, ?_Release at _Fake_proxy_ptr_impl@std@@QEAAXXZ,
> ??0?$allocator at H@std@@QEAA at XZ, ?_Getal@?$vector at HV?$allocator at H@std@@@std@
> @AEAAAEAV?$allocator at H@2 at XZ, ??$_Allocate@$0BA at U_Default_allocate_traits
> @std@@$0A@@std@@YAPEAX_K at Z, ?_Allocate at _Default_allocate_traits@std
> @@SAPEAX_K at Z, ??_C at _0BD@OLBABOEK at vector?$DMT?$DO?5too?5long?$AA@,
> ??1?$_Tidy_guard at V?$vector at HV?$allocator at H@std@@@std@@@std@@QEAA at XZ,
> ?_Destroy@?$vector at HV?$allocator at H@std@@@std@@AEAAXPEAH0 at Z, ?_Getal@
> ?$vector at HV?$allocator at H@std@@@std@@AEBAAEBV?$allocator at H@2 at XZ, main,
> ??$_Construct_n_copies_of_ty at U_Value_init_tag@std@@@?$vector at HV
> ?$allocator at H@std@@@std@@AEAAX_KAEBU_Value_init_tag at 1@@Z,
> ??0_Fake_proxy_ptr_impl at std@@QEAA at AEBU_Fake_allocator
> @1 at AEBU_Container_base0@1@@Z, ?_Buy_nonzero@?$vector at HV?$allocator at H@std@
> @@std@@AEAAX_K at Z, ?_Orphan_all@?$vector at HV?$allocator at H@std@@@std@@AEAAXXZ,
> ??$_Allocate_manually_vector_aligned at U_Default_allocate_traits@std@@@std@
> @YAPEAX_K at Z, ?_Mylast@?$vector at HV?$allocator at H@std@@@std@@AEAAAEAPEAHXZ,
> ?max_size@?$vector at HV?$allocator at H@std@@@std@@QEBA_KXZ,
> ??$_Zero_range at PEAH@std@@YAPEAHQEAH0 at Z, ?max_size@
> ?$_Default_allocator_traits at V?$allocator at H@std@@@std@
> @SA_KAEBV?$allocator at H@2@@Z, ?_Adjust_manually_vector_aligned at std
> @@YAXAEAPEAXAEA_K at Z, ?deallocate@?$allocator at H@std@@QEAAXQEAH_K at Z, ?max@
> ?$numeric_limits at _J@std@@SA_JXZ,
> ??$_Uninitialized_value_construct_n at PEAH_KV?$allocator at H@std@@@std@
> @YAPEAHPEAH_KAEAV?$allocator at H@0@@Z, ??$_Destroy_range at V?$allocator at H@std@
> @@std@@YAXPEAH0AEAV?$allocator at H@0@@Z, ?_Get_data@?$vector at HV?$allocator at H
> @std@@@std@@AEAAAEAV?$_Vector_val at U?$_Simple_types at H@std@@@2 at XZ,
> ?_Get_first@?$_Compressed_pair at V?$allocator at H@std@@V?$_Vector_val at U
> ?$_Simple_types at H@std@@@2@$00 at std@@QEAAAEAV?$allocator at H@2 at XZ,
> ??$_Min_value at _K@std@@YAAEB_KAEB_K0 at Z, ??$_Get_size_of_n@$03 at std@@YA_K_K at Z,
> ?_Ufill@?$vector at HV?$allocator at H@std@@@std@
> @AEAAPEAHPEAH_KU_Value_init_tag at 2@@Z,
> ??$_Uninitialized_value_construct_n1 at PEAH_KV?$allocator at H@std@@@std@
> @YAPEAHPEAH_KAEAV?$allocator at H@0 at U?$integral_constant at _N$00 at 0@@Z,
> ??0?$_Vector_val at U?$_Simple_types at H@std@@@std@@QEAA at XZ, ?_Buy_raw@
> ?$vector at HV?$allocator at H@std@@@std@@AEAAX_K at Z, ?allocate@?$allocator at H
> @std@@QEAAPEAH_K at Z, ?_Get_first@?$_Compressed_pair at V?$allocator at H@std@
> @V?$_Vector_val at U?$_Simple_types at H@std@@@2@$00 at std@@QEBAAEBV?$allocator at H
> @2 at XZ, ??$_Deallocate@$0BA@$0A@@std@@YAXPEAX_K at Z, ?_Xlength@?$vector at HV
> ?$allocator at H@std@@@std@@CAXXZ }
>
> You can see the code that I am using here:
> https://gist.github.com/monamimani/1d8c5287eeaf83d5a6f619699d0c52c4
>
> There is a bunch of reason I can imagine why this would happen:
> - The symbol are not there, I recently discover
> this llvm::sys::DynamicLibrary::LoadLibraryPermanently(nullptr); but it
> doesn't change anything.,
> - I am using this helper class
> http://llvm.org/doxygen/classllvm_1_1orc_1_1LLJIT.html, maybe the setup
> is not complet. I tried to compare with the example
> https://llvm.org/docs/tutorial/BuildingAJIT1.html, maybe I missed
> something.
> - The other thing I am considering is that
> llvm::orc::RTDyldObjectLinkingLayer is not working on windows and I would
> need to use llvm::orc::LegacyRTDyldObjectLinkingLayer ( because of the bool
> ExportedSymbolsOnly parameter in the findSymbol function.
>
> Does anybody have a hint about what I might try to fix this?
>
> Thanks a lot.
> Emmanuel
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> llvm-dev at lists.llvm.org
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