Error when using AsmJit within a Qt GUI Application

Question

OS: Windows 10

IDE: Visual Studio 2015

I need to use the AsmJit library (https://github.com/asmjit/asmjit) inside my Qt GUI Application. But is is somehow incompatible. When certain headers are included from QT (QWidget etc.), things start to break.

Most errors originate from this line:

ASMJIT_INLINE Error emit(uint32_t code, const Operand& o0, const Operand& o1, const Operand& o2, const Operand& o3) {
    return _emit(code, o0, o1, o2, o3);
  }

Where ASMJIT_INLINE is defined as __forceinline.

When I compile it in VS2015, it is giving the following error:

Severity    Code    Description Project File    Line    Suppression State
Error   C2086   'asmjit::Error asmjit::Assembler::Operand': redefinition    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  472 
Error   C2334   unexpected token(s) preceding '{'; skipping apparent function body  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  472 
Error   C2238   unexpected token(s) preceding ';'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  466 
Error   C2238   unexpected token(s) preceding ';'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  468 
Error   C2238   unexpected token(s) preceding ';'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  470 
Error   C2238   unexpected token(s) preceding ';'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  481 
Error   C2238   unexpected token(s) preceding ';'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  483 
Error   C2238   unexpected token(s) preceding ';'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  485 
Error   C2238   unexpected token(s) preceding ';'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  487 
Error   C2238   unexpected token(s) preceding ';'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  489 
Error   C2238   unexpected token(s) preceding ';'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  491 
Error   C2062   type 'int' unexpected   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  477 
Error   C2146   syntax error: missing '>' before identifier 'uint64_t'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  248 
Error   C2146   syntax error: missing '>' before identifier 'uint32_t'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  242 
Error   C2146   syntax error: missing '>' before identifier 'uint32_t'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  260 
Error   C2143   syntax error: missing ';' before '&'    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  466 
Error   C2143   syntax error: missing ';' before '&'    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  468 
Error   C2143   syntax error: missing ';' before '&'    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  470 
Error   C2143   syntax error: missing ';' before '&'    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  472 
Error   C2143   syntax error: missing ';' before '&'    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  481 
Error   C2143   syntax error: missing ';' before '&'    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  483 
Error   C2143   syntax error: missing ';' before '&'    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  485 
Error   C2143   syntax error: missing ';' before '&'    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  487 
Error   C2143   syntax error: missing ';' before '&'    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  489 
Error   C2143   syntax error: missing ';' before '&'    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  491 
Error   C2143   syntax error: missing ',' before '&'    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  494 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  464 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  466 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  468 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  470 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  472 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  477 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  479 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  481 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  483 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  485 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  487 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  489 
Error   C2146   syntax error: missing ')' before identifier 'code'  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  491 
Error   C2061   syntax error: identifier 'uint64_t' Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  284 
Error   C2061   syntax error: identifier 'uint32_t' Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  278 
Error   C2061   syntax error: identifier 'uint32_t' Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  296 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  464 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  466 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  468 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  470 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  472 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  479 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  481 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  483 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  485 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  487 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  489 
Error   C2059   syntax error: ')'   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  491 
Error   C4430   missing type specifier - int assumed. Note: C++ does not support default-int    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  494 
Error   C4430   missing type specifier - int assumed. Note: C++ does not support default-int    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  242 
Error   C4430   missing type specifier - int assumed. Note: C++ does not support default-int    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  248 
Error   C4430   missing type specifier - int assumed. Note: C++ does not support default-int    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  260 
Error   C3646   'o0': unknown override specifier    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  479 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  464 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  466 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  468 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  470 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  472 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  477 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  479 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  481 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  483 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  485 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  487 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  489 
Error   C3646   'code': unknown override specifier  Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  491 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  466 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  468 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  470 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  472 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  477 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  479 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  481 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  483 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  485 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  487 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  489 
Error   C2086   'asmjit::Error asmjit::Assembler::uint32_t': redefinition   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  491 
Error   C2086   'asmjit::Error asmjit::Assembler::Operand': redefinition    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  468 
Error   C2086   'asmjit::Error asmjit::Assembler::Operand': redefinition    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  470 
Error   C2086   'asmjit::Error asmjit::Assembler::Operand': redefinition    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  481 
Error   C2086   'asmjit::Error asmjit::Assembler::Operand': redefinition    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  483 
Error   C2086   'asmjit::Error asmjit::Assembler::Operand': redefinition    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  485 
Error   C2086   'asmjit::Error asmjit::Assembler::Operand': redefinition    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  487 
Error   C2086   'asmjit::Error asmjit::Assembler::Operand': redefinition    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  489 
Error   C2086   'asmjit::Error asmjit::Assembler::Operand': redefinition    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  491 
Error   C2327   'asmjit::Assembler::uint32_t': is not a type name, static, or enumerator    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  494 
Error   C2327   'asmjit::Assembler::uint32_t': is not a type name, static, or enumerator    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  513 
Error   C2433   'asmjit::Assembler::uint32_t': '__forceinline' not permitted on data declarations   Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  472 
Error   C2433   'asmjit::Assembler::Operand': '__forceinline' not permitted on data declarations    Loader  C:\Users\Ik\Documents\Visual Studio 2015\Projects\DC\loader\CustomBone\contrib\AsmJit\base\assembler.h  472

That would be hard to answer just based on the error messages shown. Apparently some types like uint32_t are not defined, which could mean that some basics like were not included, but since asmjit includes them in its asmjit_build.h it's kinda weird. I would try to first compile asmjit with its tests and report to asmjit issues if they don't compile. — Petr, Feb 10 '17 at 13:05

score 1 · Accepted Answer · answered Feb 10 '17 at 13:18

After thinking about this I think the only reason that asmjit doesn't compile with Qt is that qt defines emit macro, which collides with asmjit's emit function. So after expanding the macro the code:

ASMJIT_INLINE Error emit(uint32_t code,
  const Operand& o0,
  const Operand& o1,
  const Operand& o2,
  const Operand& o3) { return _emit(code, o0, o1, o2, o3); }

Becomes:

ASMJIT_INLINE Error (uint32_t code,
  const Operand& o0,
  const Operand& o1,
  const Operand& o2,
  const Operand& o3) { return _emit(code, o0, o1, o2, o3); }

Using Qt with 3rd Party Signals and Slots (https://doc.qt.io/qt-5/signalsandslots.html) mentions it:

no_keywords tells Qt not to define the moc keywords signals, slots, and emit, because these names will be used by a 3rd party library, e.g. Boost. Then to continue using Qt signals and slots with the no_keywords flag, simply replace all uses of the Qt moc keywords in your sources with the corresponding Qt macros Q_SIGNALS (or Q_SIGNAL), Q_SLOTS (or Q_SLOT), and Q_EMIT.

Adding no_keywords to Qt project is the same as passing -DQT_NO_KEYWORDS to the compiler (basically defining QT_NO_KEYWORDS to 1).

This could be fixed on asmjit side as well, however, asmjit is doing nothing wrong. You would have the same problem with many other libraries like boost.

Thanks for your well constructed answer! Good to know its possible to avoid name clashes in Qt with the `QT_NO_KEYWORDS` definition. Will report back soon if this resolves it and mark it as accepted. — Steffen Brem, Feb 10 '17 at 16:06
Now if you followed the "good practice" of using the entirely redundant `emit` for Qt signals, you will have to go back and remove all those. — dtech, Feb 10 '17 at 18:36

Error when using AsmJit within a Qt GUI Application

1 Answers1