Rodrigo, you might have more luck with the latest 8.1 tag (rather than
8.3), I recall that 8.1 is building OK with MSVC. If you're writing a vcpkg
port, settling for a clang build might not be ideal, since MSVC programs
won't be able to reliably link to it.
Ben

On Mon, 13 Jul 2020, 2:17 am Rodrigo Hernandez, <
kwizatz.aeongames....@gmail.com> wrote:

>
> Ok, findings so far:
>
> commenting out the flag "/Zc:inline" in build/config/compiler/BUILD.gn
> takes care of the FixedArray::set undefined symbol, but the build takes
> longer, need to see if bumping "/Ob" from "/Ob2" to "/Ob3" fixes the issue
> w/o removing the inline flag.
>
> After that, both builds (debug/release) get to the same place, 73
> unresolved symbols at v8.dll link stage, all seem to be part of the
> v8_initializers source set which is a dep of the v8_for_testing component
> but not for the v8 one.
> I tried adding the dependency but no luck, seems the linker doesn't take
> the files into account, or I did something wrong, not sure, still I doubt
> that is the proper solution since the clang/customc++ build.is fine.
>
> I also tried the clang build with system libc++, that produces compiling
> errors that were relatively easy to solve, adding the compiler flags
> "-Wno-invalid-offsetof" and "-Wno-range-loop-construct" should do the work,
> however with that last one
> still saw the compiler complain because of some for(auto x: map) loop
> which should really be for(auto &x: map), but again, that may have been due
> to a dirty repo.
>
> So while I guess I found a workaround I still would like to know whats
> with the initializer symbols missing in MSVC, can somebody comment?
>
> Thanks!
>
>
> On Thursday, July 9, 2020 at 2:06:21 PM UTC-6, Rodrigo Hernandez wrote:
>>
>> Hello,
>>
>> I am trying to create a VCPKG (https://github.com/microsoft/vcpkg) port
>> of v8,
>> and in doing so I am syncing to tag 8.3.110.13 as suggested here:
>> https://v8.dev/docs/version-numbers
>>
>> Since this is package manager, I want to build against msvc's c++ lib, so
>> I am using use_custom_libcxx=false,
>> however I am seeing linking errors related to undefined symbols on debug
>> builds like:
>>
>> [1797/2086] LINK(DLL) v8.dll v8.dll.lib v8.dll.pdb
>> FAILED: v8.dll v8.dll.lib v8.dll.pdb
>> C:/Code/vcpkg/buildtrees/v8/src/epot_tools-f6c91d5fca/bootstrap-3_8_0_chromium_8_bin/python/bin/python.exe
>> ../../build/toolchain/win/tool_wrapper.py link-wrapper environment.x64
>> False link.exe /nologo /IMPLIB:./v8.dll.lib /DLL /OUT:./v8.dll
>> /PDB:./v8.dll.pdb @./v8.dll.rsp
>> class-verifiers-tq.obj : error LNK2019: unresolved external symbol
>> "public: class v8::internal::TNode<struct v8::internal::BoolT> __cdecl
>> v8::internal::TorqueGeneratedExportedMacrosAssembler::IsFastJSArray(class
>> v8::internal::TNode<class v8::internal::Object>,class
>> v8::internal::TNode<class v8::internal::Context>)"
>> (?IsFastJSArray@TorqueGeneratedExportedMacrosAssembler@internal@v8
>> @@QEAA?AV?$TNode@UBoolT@internal@v8@@@23@V?$TNode@VObject@internal@v8
>> @@@23@V?$TNode@VContext@internal@v8@@@23@@Z) referenced in function
>> "public: class v8::internal::TNode<class v8::internal::JSArray> __cdecl
>> v8::internal::CodeStubAssembler::TaggedToFastJSArray(class
>> v8::internal::TNode<class v8::internal::Context>,class
>> v8::internal::TNode<class v8::internal::Object>,class
>> v8::internal::compiler::CodeAssemblerLabel *)"
>> (?TaggedToFastJSArray@CodeStubAssembler@internal@v8
>> @@QEAA?AV?$TNode@VJSArray@internal@v8@@@23@V?$TNode@VContext@internal@v8
>> @@@23@V?$TNode@VObject@internal@v8@@@23@PEAVCodeAssemblerLabel
>> @compiler@23@@Z)
>>
>> There's 75 symbols missing in total, all in class-verifiers-tq.obj, I can
>> post the rest if needed, but hopefully this will give you an idea.
>>
>> On release builds there is only one undefined symbol: void __cdecl
>> v8::internal::FixedArray::set(int,class v8::internal::Smi), which I believe
>> should be in fixed-array-tq-csa.obj,
>> but it is not there. There are 2 overrides right next to its definition
>> in fixed-array-inl.h that do seem to exist in the object file but this one
>> isn't.
>>
>> here is the error output:
>>
>> ninja: Entering directory `out\x64.release'
>> [1/298] LINK mksnapshot.exe mksnapshot.exe.pdb
>> FAILED: mksnapshot.exe mksnapshot.exe.pdb
>> C:/Code/vcpkg/buildtrees/v8/src/epot_tools-f6c91d5fca/bootstrap-3_8_0_chromium_8_bin/python/bin/python.exe
>> ../../build/toolchain/win/tool_wrapper.py link-wrapper environment.x64
>> False link.exe /nologo /OUT:./mksnapshot.exe /PDB:./mksnapshot.exe.pdb
>> @./mksnapshot.exe.rsp
>> exported-macros-assembler-tq.obj : error LNK2019: unresolved external
>> symbol "public: void __cdecl v8::internal::FixedArray::set(int,class
>> v8::internal::Smi)" (?set@FixedArray@internal@v8@@QEAAXHVSmi@23@@Z)
>> referenced in function "protected: void __cdecl
>> v8::internal::OrderedHashTable<class
>> v8::internal::OrderedHashMap,2>::SetNumberOfBuckets(int)"
>> (?SetNumberOfBuckets@?$OrderedHashTable@VOrderedHashMap@internal@v8
>> @@$01@internal@v8@@IEAAXH@Z)
>>
>> .\mksnapshot.exe : fatal error LNK1120: 1 unresolved externals
>>
>> Is there something I can patch to make this work? is this a known issue?
>>
>> Also, is there a way to add a debug postfix/suffix like "d" to debug
>> libraries?
>>
>> Thanks in advance!
>>
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