r241432 - Teach mingw toolchain the msys2 mingw-w64 distribution C++ dirs.
Yaron Keren
yaron.keren at gmail.com
Fri Jul 10 11:55:55 PDT 2015
OK, please help me understand,
Where are the include directories?
Where are the lib directories?
Is gcc on the path? where?
Should clang have a default hardcoed sysroot location on Linux which is not
based on clang installed location?
2015-07-10 21:45 GMT+03:00 İsmail Dönmez <ismail at donmez.ws>:
> The problem is this exact command line worked since forever and only
> recently regressed thats why I report it.
>
> On Fri, Jul 10, 2015 at 9:38 PM, Yaron Keren <yaron.keren at gmail.com>
> wrote:
> > clang can locate /usr/x86_64-w64-mingw32/sys-root if provided to the
> > -sysroot option or deduce sysroot automatically if it finds
> > /usr/x86_64-w64-mingw32/sys-root/bin/gcc binary on the path.
> >
> > clang does not deduce the sysroot from the -isystem directory by itself.
> >
> >
> >
> >
> > 2015-07-10 19:57 GMT+03:00 İsmail Dönmez <ismail at donmez.ws>:
> >>
> >> 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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