r241432 - Teach mingw toolchain the msys2 mingw-w64 distribution C++ dirs.

İsmail Dönmez ismail at donmez.ws
Fri Jul 10 09:57:32 PDT 2015 

Anyhow this is not a nice example since it uses Cygwin's ld. A better
example from Linux side:

λ clang -v -target x86_64-w64-mingw32 -isystem
/usr/x86_64-w64-mingw32/sys-root/x86_64-w64-mingw32/include
randomworks/windows/nic.c
clang version 3.7.0 (trunk 241471)
Target: x86_64-w64-windows-gnu
Thread model: posix
 "/opt/clang/bin/clang-3.7" -cc1 -triple x86_64-w64-windows-gnu
-emit-obj -mrelax-all -disable-free -main-file-name nic.c
-mrelocation-model pic -pic-level 2 -mthread-model posix -fmath-errno
-masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64
-momit-leaf-frame-pointer -v -dwarf-column-info -resource-dir
/opt/clang/bin/../lib64/clang/3.7.0 -isystem
/usr/x86_64-w64-mingw32/sys-root/x86_64-w64-mingw32/include
-internal-isystem /opt/clang/bin/../lib64/clang/3.7.0/include
-internal-isystem include -internal-isystem include-fixed
-internal-isystem /usr/mingw32/include -internal-isystem /usr/include
-fdebug-compilation-dir /home/ismail -ferror-limit 19 -fmessage-length
126 -mstackrealign -fno-use-cxa-atexit -fobjc-runtime=gcc
-fdiagnostics-show-option -fcolor-diagnostics -o /tmp/nic-08e945.o -x
c randomworks/windows/nic.c
clang -cc1 version 3.7.0 based upon LLVM 3.7.0svn default target
x86_64-suse-linux
ignoring nonexistent directory "include"
ignoring nonexistent directory "include-fixed"
ignoring nonexistent directory "/usr/mingw32/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/x86_64-w64-mingw32/sys-root/x86_64-w64-mingw32/include
 /opt/clang/bin/../lib64/clang/3.7.0/include
 /usr/include
End of search list.
 "/usr/bin/x86_64-w64-mingw32-ld" -m i386pep -Bdynamic -o a.exe crt2.o
crtbegin.o -L -L/usr/lib -L/usr/mingw32/lib /tmp/nic-08e945.o
-lmingw32 -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt -ladvapi32
-lshell32 -luser32 -lkernel32 -lmingw32 -lgcc_s -lgcc -lmoldname
-lmingwex -lmsvcrt crtend.o
/usr/bin/x86_64-w64-mingw32-ld: cannot find crt2.o: No such file or directory
/usr/bin/x86_64-w64-mingw32-ld: cannot find crtbegin.o: No such file
or directory
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lmingw32
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lgcc_s
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lgcc
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lmoldname
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lmingwex
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lmsvcrt
/usr/bin/x86_64-w64-mingw32-ld: cannot find -ladvapi32
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lshell32
/usr/bin/x86_64-w64-mingw32-ld: cannot find -luser32
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lkernel32
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lmingw32
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lgcc_s
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lgcc
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lmoldname
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lmingwex
/usr/bin/x86_64-w64-mingw32-ld: cannot find -lmsvcrt
/usr/bin/x86_64-w64-mingw32-ld: cannot find crtend.o: No such file or directory
clang-3.7: error: linker command failed with exit code 1 (use -v to
see invocation)


On Fri, Jul 10, 2015 at 7:54 PM, İsmail Dönmez <ismail at donmez.ws> wrote:
> This is without any patches (r241901-win64) and the original command
> line is there:
>
> clang -v -target x86_64-w64-mingw32 -isystem
>  C:/mingw-w64-6.0.0/x86_64-w64-mingw32/include -isystem
>  C:/mingw-w64-6.0.0/include/c++/6.0.0 -isystem
>  C:/mingw-w64-6.0.0/include/c++/6.0.0/x86_64-w64-mingw32
>  randomworks/windows/nic.c
>
>
> On Fri, Jul 10, 2015 at 7:51 PM, Yaron Keren <yaron.keren at gmail.com> wrote:
>> This is with or without any patches? what is the original command line?
>>
>>
>> 2015-07-10 19:30 GMT+03:00 İsmail Dönmez <ismail at donmez.ws>:
>>>
>>> Hi,
>>>
>>> I meant to try these but both on cygwin and linux hosts we have
>>> linking regression that goes like:
>>>
>>> λ clang -v -target x86_64-w64-mingw32 -isystem
>>> C:/mingw-w64-6.0.0/x86_64-w64-mingw32/include -isystem
>>> C:/mingw-w64-6.0.0/include/c++/6.0.0 -isystem
>>> C:/mingw-w64-6.0.0/include/c++/6.0.0/x86_64-w64-mingw32
>>> randomworks/windows/nic.c
>>> clang version 3.7.0 (https://github.com/llvm-mirror/clang.git
>>> ca355c9f413a6ca4941e3033e89e5242e29bd802)
>>> Target: x86_64-w64-windows-gnu
>>> Thread model: posix
>>>  "C:\\Program Files\\LLVM\\bin\\clang.exe" -cc1 -triple
>>> x86_64-w64-windows-gnu -emit-obj -mrelax-all -disable-free
>>> -main-file-name nic.c -mrelocation-model pic -pic-level 2
>>> -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases
>>> -munwind-tables -target-cpu x86-64 -momit-leaf-frame-pointer -v
>>> -dwarf-column-info -resource-dir "C:\\Program
>>> Files\\LLVM\\bin\\..\\lib\\clang\\3.7.0" -isystem
>>> C:/mingw-w64-6.0.0/x86_64-w64-mingw32/include -isystem
>>> C:/mingw-w64-6.0.0/include/c++/6.0.0 -isystem
>>> C:/mingw-w64-6.0.0/include/c++/6.0.0/x86_64-w64-mingw32
>>> -internal-isystem "C:\\Program
>>> Files\\LLVM\\bin\\..\\lib\\clang\\3.7.0\\include" -internal-isystem
>>> include -internal-isystem include-fixed -internal-isystem
>>> "C:\\cygwin64\\mingw32\\include" -internal-isystem
>>> "C:\\cygwin64\\include" -std=c11 -fdebug-compilation-dir
>>> "C:\\cygwin64\\home\\ismail" -ferror-limit 19 -fmessage-length 0
>>> -mstackrealign -fno-use-cxa-atexit -fobjc-runtime=gcc
>>> -fdiagnostics-show-option -fcolor-diagnostics -fansi-escape-codes -o
>>> "C:\\cygwin64\\tmp\\nic-6bff3b.o" -x c randomworks/windows/nic.c
>>> clang -cc1 version 3.7.0 based upon LLVM 3.7.0svn default target
>>> x86_64-pc-windows-msvc
>>> ignoring nonexistent directory "include"
>>> ignoring nonexistent directory "include-fixed"
>>> ignoring nonexistent directory "C:\cygwin64\mingw32\include"
>>> ignoring nonexistent directory "C:\cygwin64\include"
>>> #include "..." search starts here:
>>> #include <...> search starts here:
>>>  C:/mingw-w64-6.0.0/x86_64-w64-mingw32/include
>>>  C:/mingw-w64-6.0.0/include/c++/6.0.0
>>>  C:/mingw-w64-6.0.0/include/c++/6.0.0/x86_64-w64-mingw32
>>>  C:\Program Files\LLVM\bin\..\lib\clang\3.7.0\include
>>> End of search list.
>>>  "C:\\cygwin64\\bin\\ld.exe" -m i386pep -Bdynamic -o a.exe crt2.o
>>> crtbegin.o -L "-LC:\\cygwin64\\lib" "-LC:\\cygwin64\\mingw32\\lib"
>>> "C:\\cygwin64\\tmp\\nic-6bff3b.o" -lmingw32 -lgcc_s -lgcc -lmoldname
>>> -lmingwex -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32 -lmingw32
>>> -lgcc_s -lgcc -lmoldname -lmingwex -lmsvcrt crtend.o
>>> /usr/bin/ld: cannot find crt2.o: No such file or directory
>>> /usr/bin/ld: cannot find crtbegin.o: No such file or directory
>>> /usr/bin/ld: cannot find -lmingw32
>>> /usr/bin/ld: cannot find -lgcc_s
>>> /usr/bin/ld: cannot find -lgcc
>>> /usr/bin/ld: cannot find -lmoldname
>>> /usr/bin/ld: cannot find -lmingwex
>>> /usr/bin/ld: cannot find -lmsvcrt
>>> /usr/bin/ld: cannot find -lmingw32
>>> /usr/bin/ld: cannot find -lgcc_s
>>> /usr/bin/ld: cannot find -lgcc
>>> /usr/bin/ld: cannot find -lmoldname
>>> /usr/bin/ld: cannot find -lmingwex
>>> /usr/bin/ld: cannot find -lmsvcrt
>>> /usr/bin/ld: cannot find crtend.o: No such file or directory
>>> clang.exe: error: linker command failed with exit code 1 (use -v to
>>> see invocation)
>>>
>>> Any ideas? Also reproducible with gcc 5.1.1 on Linux.
>>>
>>>
>>> On Tue, Jul 7, 2015 at 6:19 PM, Yaron Keren <yaron.keren at gmail.com> wrote:
>>> > Here is a patch honoring sysroot for ld, let me know if it works for
>>> > you.
>>> >
>>> > 2015-07-07 12:13 GMT+03:00 Yaron Keren <yaron.keren at gmail.com>:
>>> >>
>>> >> Hi,  Please see if the attached patch works on opensuse.
>>> >>
>>> >> I'll look at the cygnus ld issue later.
>>> >>
>>> >>
>>> >> 2015-07-07 10:38 GMT+03:00 İsmail Dönmez <ismail at donmez.ws>:
>>> >>>
>>> >>> Hi,
>>> >>>
>>> >>> On Mon, Jul 6, 2015 at 10:40 AM, Yaron Keren <yaron.keren at gmail.com>
>>> >>> wrote:
>>> >>> > Author: yrnkrn
>>> >>> > Date: Mon Jul  6 02:40:10 2015
>>> >>> > New Revision: 241432
>>> >>> >
>>> >>> > URL: http://llvm.org/viewvc/llvm-project?rev=241432&view=rev
>>> >>> > Log:
>>> >>> > Teach mingw toolchain the msys2 mingw-w64 distribution C++ dirs.
>>> >>> >
>>> >>> >
>>> >>> > Modified:
>>> >>> >     cfe/trunk/lib/Driver/MinGWToolChain.cpp
>>> >>> >     cfe/trunk/lib/Driver/ToolChains.h
>>> >>>
>>> >>> I tried this revision on openSUSE MinGW toolchain and its missing one
>>> >>> include path, which is $GCC_ROOT/nclude/c++/x86_64-w64-mingw32 which
>>> >>> contains "bits" and "ext" directories. Would you mind adding that to
>>> >>> the list too?
>>> >>>
>>> >>> Thanks!
>>> >>
>>> >>
>>> >
>>
>>

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