[LLVMdev] Linking clang.exe takes more than two hours?

xunxun
2012-05-27T03:17:49Z

于 2012/5/27 11:04, Mikael Lyngvig 写道:
> Hi,
>
> I'm building using MINGW64 on a very slow system (Intel Atom 330 X2
> 1.6 GHz), but it seems rather odd that the system has been linking
> clang.exe for the past two hours.  It appears that a couple of
> gigabytes of virtual memory are being used (causing constant swapping)
> - the system has only 2 GB of physical memory.
>
> Is this a bug in MINGW64 (binutils 2.22) or is it just too little RAM
> in the build machine?  After all, clang.exe is only about 35 megabytes
> or so, so you'd think that it didn't take four gigabytes to link
the
> executable.  But then again, the input libraries to clang.exe take up
> about 1.2 gigabyte.  If the GNU/MINGW64 linker naively reads all
> library files into memory and then searches about to resolve
> unresolved symbols, I guess it could cause excessive trashing during link.
>
>
> Cheers,
> Mikael
>
>
Which edition of your gcc?

If newer than gcc4.6 (including 4.6), you may try to add
-fno-keep-inline-dllexport to your compiler option, this will improve
your link issues.


--
Best Regards,
xunxun