[cfe-dev] Clang debug linking options on Windows

[Joshua Gerrard via cfe-dev]

Also try defining _MT

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Joshua Gerrard
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On 11 September 2015 at 23:49, Russell Wallace via cfe-dev <
cfe-dev at lists.llvm.org> wrote:

> That almost works. What am I still missing? I tried -g but no effect.
>
> C:\t>clang -D_DEBUG -I/llvm/build/include -I/llvm/include -S -emit-llvm
> -fms-compatibility-version=19 a.cpp
>
> C:\t>clang a.ll \llvm\build\Debug\lib\*.lib
> warning: overriding the module target triple with
> x86_64-pc-windows-msvc18.0.0 [-Woverride-module]
> 1 warning generated.
> LINK : warning LNK4098: defaultlib 'LIBCMTD' conflicts with use of other
> libs; use /NODEFAULTLIB:library
> LLVMSupport.lib(TargetParser.obj) : error LNK2001: unresolved external
> symbol _CrtDbgReportW
> libcpmtd.lib(stdthrow.obj) : error LNK2001: unresolved external symbol
> _CrtDbgReportW
> libcpmtd.lib(syserror.obj) : error LNK2001: unresolved external symbol
> _CrtDbgReportW
> LLVMSupport.lib(ConvertUTFWrapper.obj) : error LNK2001: unresolved
> external symbol _CrtDbgReportW
> LLVMSupport.lib(Host.obj) : error LNK2001: unresolved external symbol
> _CrtDbgReportW
> LLVMSupport.lib(MemoryBuffer.obj) : error LNK2001: unresolved external
> symbol _CrtDbgReportW
> etc...
>
> On Fri, Sep 11, 2015 at 9:14 PM, Reid Kleckner <rnk at google.com> wrote:
>
>> You're crossing the relase/debug MSVC CRT streams. Make sure all objects
>> in a given image are using the same CRT.
>>
>> In your specific example, you should add -D_DEBUG to the command line.
>> You want to simulate the effect of passing /MTd to cl.exe or clang-cl.exe.
>>
>> On Fri, Sep 11, 2015 at 10:07 AM, Russell Wallace via cfe-dev <
>> cfe-dev at lists.llvm.org> wrote:
>>
>>> I'm trying to compile some code via IR and link it with the debug
>>> libraries on Windows, but getting errors. A minimal test case:
>>>
>>> C:\t>type a.cpp
>>> #define _HAS_EXCEPTIONS 0
>>> #include <llvm/Support/Signals.h>
>>>
>>> int main() {
>>>   llvm::sys::PrintStackTraceOnErrorSignal();
>>>   return 0;
>>> }
>>>
>>> C:\t>clang -I/llvm/build/include -I/llvm/include -S -emit-llvm
>>> -fms-compatibility-version=19 a.cpp
>>>
>>> C:\t>clang a.ll \llvm\build\Debug\lib\*.lib
>>> warning: overriding the module target triple with
>>> x86_64-pc-windows-msvc18.0.0 [-Woverride-module]
>>> 1 warning generated.
>>> LLVMSupport.lib(Signals.obj) : error LNK2038: mismatch detected for
>>> '_ITERATOR_DEBUG_LEVEL': value '2' doesn't match value '0' in a-db717b.o
>>> LLVMSupport.lib(Signals.obj) : error LNK2038: mismatch detected for
>>> 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value
>>> 'MT_StaticRelease' in a-db717b.o
>>> LLVMSupport.lib(Path.obj) : error LNK2038: mismatch detected for
>>> '_ITERATOR_DEBUG_LEVEL': value '2' doesn't match value '0' in a-db717b.o
>>> LLVMSupport.lib(Path.obj) : error LNK2038: mismatch detected for
>>> 'RuntimeLibrary': value 'MTd_StaticDebug' doesn't match value
>>> 'MT_StaticRelease' in a-db717b.o
>>> LLVMSupport.lib(raw_ostream.obj) : error LNK2038: mismatch detected for
>>> '_ITERATOR_DEBUG_LEVEL': value '2' doesn't match value '0' in a-db717b.o
>>> ...etc...
>>>
>>> There's probably an option that I'm missing?
>>>
>>> _______________________________________________
>>> cfe-dev mailing list
>>> cfe-dev at lists.llvm.org
>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev
>>>
>>>
>>
>
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