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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I’ve tried every path in my sysroot up to crtbegin.o and it doesn’t make a difference<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">/home/repo/jdx/wr8-baytrail_64/buildbox/<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">/home/repo/jdx/wr8-baytrail_64/buildbox/usr<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">/home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib64/<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">/home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib64/x86_64-wrs-linux<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">/home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib64/x86_64-wrs-linux/5.2.0/</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">
<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Tomasz Mikolajczyk [mailto:tmmikolajczyk@gmail.com]
<br>
<b>Sent:</b> Wednesday, April 18, 2018 2:01 PM<br>
<b>To:</b> Miller Henry <MillerHenry@JohnDeere.com><br>
<b>Cc:</b> Manoj Gupta <manojgupta@google.com>; cfe-dev@lists.llvm.org<br>
<b>Subject:</b> Re: [cfe-dev] cross compiling with 6.0.0 not finding gcc paths<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I would try the following</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">--gcc-toolchain=/home/repo/jdx/wr8-baytrail_64/buildbox/usr/ </span><span style="font-family:"Arial",sans-serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Wed, 18 Apr 2018, 20:54 Miller Henry via cfe-dev, <<a href="mailto:cfe-dev@lists.llvm.org">cfe-dev@lists.llvm.org</a>> wrote:<o:p></o:p></p>
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<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt">
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">No. I played with a few alternate paths, but that doesn’t seem to make a difference. Any other ideas?</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> [2/2] Linking C executable cmTC_68894</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> FAILED: cmTC_68894
</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> : && /opt/jdx/tools//usr/bin/clang --sysroot=/home/repo/jdx/wr8-baytrail_64/buildbox -fno-omit-frame-pointer
-gsplit-dwarf -v --gcc-toolchain=/home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib64/ --target=x86_64-wrs-linux --sysroot=/home/repo/jdx/wr8-baytrail_64/buildbox -rdynamic -O2 -L/home/repo/jdx/wr8-baytrail_64/buildbox/usr/local/lib -Wl,--gdb-index -lrt -lpthread
-Wl,--disable-new-dtags CMakeFiles/cmTC_68894.dir/testCCompiler.c.o -o cmTC_68894 && :</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> clang version 6.0.0 (tags/RELEASE_600/final)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> Target: x86_64-wrs-linux</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> Thread model: posix</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> InstalledDir: /opt/jdx/tools//usr/bin</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> "/opt/jdx/tools/sysroots/x86_64-wrlinuxsdk-linux/usr/bin/x86_64-wrs-linux/x86_64-wrs-linux-ld"
--sysroot=/home/repo/jdx/wr8-baytrail_64/buildbox -export-dynamic -z relro --hash-style=gnu --eh-frame-hdr -m elf_x86_64 -export-dynamic -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o cmTC_68894 /home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib/../lib64/crt1.o
/home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib/../lib64/crti.o crtbegin.o -L/home/repo/jdx/wr8-baytrail_64/buildbox/usr/local/lib -L/home/repo/jdx/wr8-baytrail_64/buildbox/lib/../lib64 -L/home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib/../lib64 -L/home/repo/jdx/wr8-baytrail_64/buildbox/lib
-L/home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib --gdb-index -lrt -lpthread --disable-new-dtags CMakeFiles/cmTC_68894.dir/testCCompiler.c.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed crtend.o /home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib/../lib64/crtn.o</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> /opt/jdx/tools/sysroots/x86_64-wrlinuxsdk-linux/usr/bin/x86_64-wrs-linux/x86_64-wrs-linux-ld: error:
cannot open crtbegin.o: No such file or directory</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> /opt/jdx/tools/sysroots/x86_64-wrlinuxsdk-linux/usr/bin/x86_64-wrs-linux/x86_64-wrs-linux-ld: error:
cannot open crtend.o: No such file or directory</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> /opt/jdx/tools/sysroots/x86_64-wrlinuxsdk-linux/usr/bin/x86_64-wrs-linux/x86_64-wrs-linux-ld: error:
cannot find -lgcc</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> /opt/jdx/tools/sysroots/x86_64-wrlinuxsdk-linux/usr/bin/x86_64-wrs-linux/x86_64-wrs-linux-ld: error:
cannot find -lgcc</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> clang-6.0: error: linker command failed with exit code 1 (use -v to see invocation)</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> ninja: build stopped: subcommand failed.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Manoj Gupta [mailto:</span><a href="mailto:manojgupta@google.com" target="_blank"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">manojgupta@google.com</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">]
<br>
<b>Sent:</b> Wednesday, April 18, 2018 12:44 PM<br>
<b>To:</b> Miller Henry <</span><a href="mailto:MillerHenry@JohnDeere.com"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">MillerHenry@JohnDeere.com</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">><br>
<b>Cc:</b> </span><a href="mailto:cfe-dev@lists.llvm.org" target="_blank"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">cfe-dev@lists.llvm.org</span></a><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><br>
<b>Subject:</b> Re: [cfe-dev] cross compiling with 6.0.0 not finding gcc paths</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Does it help to pass the following to the clang command line: --gcc-toolchain=<span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#222222;background:white">/home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib64
?</span><o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">On Wed, Apr 18, 2018 at 7:52 AM Miller Henry via cfe-dev <<a href="mailto:cfe-dev@lists.llvm.org" target="_blank">cfe-dev@lists.llvm.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I’m building for an embedded system, this is working fine with gcc 5.2.0, but I’ve become interested in clang. In 3.9.1 everything builds fine (once I fixed the real bugs – thank
you to everyone who wrote useful warnings). I’m interested in trying clang 6.0.0, and there things don’t build.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">The first error I get is is from cmake:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> [2/2] Linking C executable cmTC_03cd5<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">FAILED: cmTC_03cd5
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> : && /opt/jdx/tools//usr/local/share/icecc/bin//clang --sysroot=/home/user/repo/jdx/wr8-baytrail_64/buildbox -fno-omit-frame-pointer -gsplit-dwarf -fdiagnostics-color=always
--target=x86_64-wrs-linux --sysroot=/home/repo/jdx/wr8-baytrail_64/buildbox -rdynamic -O2 -L/home/repo/jdx/wr8-baytrail_64/buildbox/usr/local/lib -Wl,--gdb-index -lrt -lpthread -Wl,--disable-new-dtags CMakeFiles/cmTC_03cd5.dir/testCCompiler.c.o -o cmTC_03cd5
&& :<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">/opt/jdx/tools/sysroots/x86_64-wrlinuxsdk-linux/usr/bin/x86_64-wrs-linux/x86_64-wrs-linux-ld: error: cannot open crtbegin.o: No such file or directory<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">/opt/jdx/tools/sysroots/x86_64-wrlinuxsdk-linux/usr/bin/x86_64-wrs-linux/x86_64-wrs-linux-ld: error: cannot open crtend.o: No such file or directory<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> /opt/jdx/tools/sysroots/x86_64-wrlinuxsdk-linux/usr/bin/x86_64-wrs-linux/x86_64-wrs-linux-ld: error: cannot find -lgcc<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> /opt/jdx/tools/sysroots/x86_64-wrlinuxsdk-linux/usr/bin/x86_64-wrs-linux/x86_64-wrs-linux-ld: error: cannot find -lgcc<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> clang-6.0: error: linker command failed with exit code 1 (use -v to see invocation)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">crtbegin.o is in /home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib64/x86_64-wrs-linux/5.2.0/crtbegin.o When I copy the missing files to /home/repo/jdx/wr8-baytrail_64/buildbox/usr/lib64
cmake passes and but the build fails on unable to find <string> and <vector>, I started to add include paths for jdx/wr8-baytrail_64/buildbox/usr/include/c++/5.2.0/ and that gets farther. However it is time to stop hacking the wrong way and fix the real problem.
I suspect the problem is related to clang not understanding my --target option and thus not asking gcc for the paths to the missing files, but I don’t really know how to make this work.
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">A search finds
<a href="https://stackoverflow.com/questions/4160262/clang-linker-problem" target="_blank">
https://stackoverflow.com/questions/4160262/clang-linker-problem</a>, but it isn’t helpful because the code in that area has changed so much.
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">My host is x86-64 linux. The target OS is x86_64 embedded linux (the sysroot is NOT compatible with the host libraries)<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Can someone give me a hint about where I should look to make this work. I can change either the command line arguments or the clang source code but I’m not clear on where the right
place to look is.<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">_______________________________________________<br>
cfe-dev mailing list<br>
<a href="mailto:cfe-dev@lists.llvm.org" target="_blank">cfe-dev@lists.llvm.org</a><br>
<a href="http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev" target="_blank">http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev</a><o:p></o:p></p>
</blockquote>
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</div>
</div>
<p class="MsoNormal">_______________________________________________<br>
cfe-dev mailing list<br>
<a href="mailto:cfe-dev@lists.llvm.org" target="_blank">cfe-dev@lists.llvm.org</a><br>
<a href="http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev" target="_blank">http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-dev</a><o:p></o:p></p>
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