[llvm-dev] clang interpreter failed to materialize symbols

[David Blaikie via llvm-dev]

(+Lang for JIT/interpreter questions)

On Sun, Jan 5, 2020 at 5:00 PM Igor Gomon via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Hello,
>
>
>
> I am new to LLVM and what I am trying to do is to get a very simple
> “hello-world” C++ program to compile to LLVM IR and then to run it using
> lli tool.
>
> So here is the program code (hello.cpp):
>
> #include <iostream>
>
> int main (int argc, char *argv[])
>
> {
>
>     std::cout << "Hello World!\n";
>
>     return 0;
>
> }
>
> Below are the steps I do to achieve that goal:
>
>    1. clang++.exe hello.cpp -S -emit-llvm -o hello.ll (produces hello.ll
>    about 307KB in size)
>    2. llvm-link.exe hello.ll -o hello.bc (produces the bit-code file
>    about 79KB in size).
>    3. lli.exe hello.bc (terminates with a segmentation fault). The dump
>    is below.
>
>
>
> I understand that some symbols are not loaded (C++ standard library
> symbols). I am not sure how I can specify the location of those symbols to
> lli tool (I tried –extra-object option but no effect).
>
> Could someone please let me know what am I missing or doing wrong?
>
> Any help is greatly appreciated!!!
>
>
>
> --
>
> Thanks,
>
> Igor
>
>
>
> Stack dump:
>
> 0.      Program arguments: C:\dev\llvm-project\build\Debug\bin\lli.exe
> .\hello.bc
>
> 0x0000000000000000 (0x0000000000000010 0xCCCCCCCCCCCCCCCC
> 0x000000575B18D640 0x00007FF68DEF6186) <unknown module>
>
> 0x000001AF8A3004F6 (0xCCCCCCCCCCCCCCCC 0x000000575B18D640
> 0x00007FF68DEF6186 0x000001AF8A4B0000) <unknown module>
>
> 0x0000000000000010 (0x000000575B18D640 0x00007FF68DEF6186
> 0x000001AF8A4B0000 0xFFFFFFFFFFFFFFFE) <unknown module>
>
> 0xCCCCCCCCCCCCCCCC (0x00007FF68DEF6186 0x000001AF8A4B0000
> 0xFFFFFFFFFFFFFFFE 0x000000575B18D6A0) <unknown module>
>
> 0x000000575B18D640 (0x000001AF8A4B0000 0xFFFFFFFFFFFFFFFE
> 0x000000575B18D6A0 0x000001AF8A300032) <unknown module>
>
> 0x00007FF68DEF6186 (0x000001AF8A85B410 0x000000575B18D678
> 0xCCCCCCCCCCCCCCCC 0x000001AF8A4B0000),
> std::_Construct_in_place<std::_Container_proxy,std::_Container_base12 *>()
> + 0x56 bytes(s), C:\Program Files (x86)\Microsoft Visual
> Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\xmemory, line 205
>
> 0x00007FF68DEF45E8 (0x0000000000000000 0x000000005B18D6B1
> 0xFFFFFFFFFFFFFFFE 0x000000575B18DB80),
> std::_Container_base12::_Alloc_proxy<std::allocator<std::_Container_proxy>
> >() + 0x58 bytes(s), C:\Program Files (x86)\Microsoft Visual
> Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\xmemory, line 1100
>
> 0x00007FF68DF36634 (0xCCCCCCCCCCCCCCCC 0xCCCCCCCCCCCCCCCC
> 0xCCCCCCCCCCCCCCCC 0x0000000000000001),
> std::vector<llvm::GenericValue,std::allocator<llvm::GenericValue>
> >::vector<llvm::GenericValue,std::allocator<llvm::GenericValue> >() + 0x54
> bytes(s), C:\Program Files (x86)\Microsoft Visual
> Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\vector, line 446
>
> 0x00007FF68E06B048 (0x000001AF8A6A3058 0x0000000000000001
> 0xCCCCCCCCCCCCCCCC 0xCCCCCCCCCCCCCCCC), llvm::APInt::getZExtValue() + 0x28
> bytes(s), C:\dev\llvm-project\llvm\include\llvm\ADT\APInt.h, line 1589 +
> 0xA byte(s)
>
> 0x00007FF68ED9E0F0 (0x000001AF8A563310 0x000000575B18DB88
> 0x000001AF8A583F18 0x000000575B18DBC0), llvm::MCJIT::runFunction() + 0x480
> bytes(s), C:\dev\llvm-project\llvm\lib\ExecutionEngine\MCJIT\MCJIT.cpp,
> line 550 + 0x16 byte(s)
>
> 0x00007FF68EC09680 (0x000001AF8A563310 0x000001AF8A583F18
> 0x00007FF6920964A0 0x000001AF8A532460),
> llvm::ExecutionEngine::runFunctionAsMain() + 0x410 bytes(s),
> C:\dev\llvm-project\llvm\lib\ExecutionEngine\ExecutionEngine.cpp, line 470
> + 0x65 byte(s)
>
> 0x00007FF68DEE4200 (0x0000000000000002 0x000001AF8A5515B0
> 0x000001AF8A532460 0x00007FF6909C0A7D), main() + 0x1D10 bytes(s),
> C:\dev\llvm-project\llvm\tools\lli\lli.cpp, line 614 + 0x4D byte(s)
>
> 0x00007FF6909C1A29 (0x00007FF690C2C000 0x00007FF690C2FE30
> 0x0000000000000000 0x0000000000000000), invoke_main() + 0x39 bytes(s),
> d:\agent\_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl,
> line 79
>
> 0x00007FF6909C190E (0x0000000000000000 0x0000000000000000
> 0x0000000000000000 0x0000000000000000), __scrt_common_main_seh() + 0x12E
> bytes(s),
> d:\agent\_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl,
> line 288 + 0x5 byte(s)
>
> 0x00007FF6909C17CE (0x0000000000000000 0x0000000000000000
> 0x0000000000000000 0x0000000000000000), __scrt_common_main() + 0xE
> bytes(s),
> d:\agent\_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl,
> line 331
>
> 0x00007FF6909C1AB9 (0x0000000000000000 0x0000000000000000
> 0x0000000000000000 0x0000000000000000), mainCRTStartup() + 0x9 bytes(s),
> d:\agent\_work\5\s\src\vctools\crt\vcstartup\src\startup\exe_main.cpp, line
> 17
>
> 0x00007FFC76417BD4 (0x0000000000000000 0x0000000000000000
> 0x0000000000000000 0x0000000000000000), BaseThreadInitThunk() + 0x14
> bytes(s)
>
> 0x00007FFC7746CED1 (0x0000000000000000 0x0000000000000000
> 0x0000000000000000 0x0000000000000000), RtlUserThreadStart() + 0x21 bytes(s)
>
>
>
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>
>
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