https://llvm.org/bugs/show_bug.cgi?id=26389
swigger <swig...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |---
--- Comment #2 from swigger <swig...@gmail.com> ---
(In reply to comment #1)
> Windows doesn't support executables or DLLs larger than 2GB, so cout must be
> coming from another DLL.
>
> In that case, data imported from another DLL must be annotated as dllimport.
> This is not required for functions as import libraries generally provide
> thunks to make sure things work out.
NO!
The source code shipped with cygwin does not write a dllimport with cout.
Proof:
$ cat a.cpp
#include <iostream>
$ gcc -E a.cpp | grep cout
extern ostream cout;
extern wostream wcout;
$ uname -a
CYGWIN_NT-6.1 home-PC 2.2.1(0.289/5/3) 2015-08-20 11:42 x86_64 Cygwin
Neither cygwin nor msys2 likes dllimport since this will cause many problems
for building gnu world sources. A more posix likes way would be the best, but
needs help from the compiler.
I am talking the target x86_64-pc-cygwin not x64_64-pc-windows.
Assume extern data is in 2G range is not a bug on windows natively,
but it *IS* a *BUG* on cygwin/msys2.
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