Following a blend of instructions on 3 web pages, I have succeeded in getting
LLVM 3.2 (with clang, extras, and compiler-rt) building - but not testing - on
Xcode. I used CMake 2.8.10 GUI to create the Xcode project file. Below are my
notes.
First, I believe CMake ends up setting things up so that Xcode has 1 warning
after scanning the project having to do with hires images or some such… it takes
a long time to fix that up in a project as large as this, but I'm not sure
there's anything we can do about it.
Second, a build of the ALL_BUILD target in Xcode produces 16 warnings about 8
functions declared noreturn, but without a expected __builtin_unreachable()
before the end of the function. (The first attempt to build produced 2 errors,
the first an unable to create directory error for
runtime/libprofile/LLVM.build/Debug/profile_rt-static.build/Objects-normal/x86_64;
the second a libtool failure… both went away upon a rebuild.)
Third, a build of the check-all target produced 8 warnings about the 8 functions
declared noreturn as for ALL_BUILD, and 6 or 7 "errors", mostly from
asan_mac_test.mm. After fixing up these "errors" (int vs. size_t
comparisons and malloc being assigned to volatile pointers), I got 372 duplicate
symbol errors from this:
Ld
/Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug/AsanTest
normal x86_64
cd /Volumes/Shared/NewShared/llvm/3.2/source
setenv MACOSX_DEPLOYMENT_TARGET 10.8
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++
-arch x86_64 -isysroot
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk
-L/Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug
-F/Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug
-filelist
/Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/LLVM.build/Debug/AsanTest.build/Objects-normal/x86_64/AsanTest.LinkFileList
-mmacosx-version-min=10.8 -framework Foundation -Wl,-search_paths_first
-Wl,-headerpad_max_install_names -lpthread
/Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libgtest.a
/Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libgtest_main.a
/Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libLLVMSupport.a
/Volumes/Shared/NewShared/llvm/3.2/xcode/lib/clang/3.2/lib/darwin/Debug/libclang_rt.asan_osx.a
/Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libgtest.a
/Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libLLVMSupport.a -lpthread
-fobjc-link-runtime
/Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_globals_test.cc.asan.o
/Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_test.cc.asan.o
/Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_mac_test.mm.asan.o
-o
/Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug/AsanTest
duplicate symbol __Z11GlobalsTesti in:
/Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/LLVM.build/Debug/AsanTest.build/Objects-normal/x86_64/asan_globals_test.o
/Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_globals_test.cc.asan.o
duplicate symbol _kStartupStr in:
/Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/LLVM.build/Debug/AsanTest.build/Objects-normal/x86_64/asan_mac_test.o
/Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_mac_test.mm.asan.o
and 370 more…
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Those look like the linker is being passed the same .o file built twice, ex: ../Objects-normal/x86_64/asan_globals_test.o ../lib/asan/tests/asan_globals_test.cc.asan.o So, the symbols are colliding. Something is set up wrong in the xcode project. -Nick On Dec 19, 2012, at 9:48 AM, Relph, Richard wrote:> Following a blend of instructions on 3 web pages, I have succeeded in getting LLVM 3.2 (with clang, extras, and compiler-rt) building - but not testing - on Xcode. I used CMake 2.8.10 GUI to create the Xcode project file. Below are my notes. > > First, I believe CMake ends up setting things up so that Xcode has 1 warning after scanning the project having to do with hires images or some such… it takes a long time to fix that up in a project as large as this, but I'm not sure there's anything we can do about it. > Second, a build of the ALL_BUILD target in Xcode produces 16 warnings about 8 functions declared noreturn, but without a expected __builtin_unreachable() before the end of the function. (The first attempt to build produced 2 errors, the first an unable to create directory error for runtime/libprofile/LLVM.build/Debug/profile_rt-static.build/Objects-normal/x86_64; the second a libtool failure… both went away upon a rebuild.) > Third, a build of the check-all target produced 8 warnings about the 8 functions declared noreturn as for ALL_BUILD, and 6 or 7 "errors", mostly from asan_mac_test.mm. After fixing up these "errors" (int vs. size_t comparisons and malloc being assigned to volatile pointers), I got 372 duplicate symbol errors from this: > > Ld /Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug/AsanTest normal x86_64 > cd /Volumes/Shared/NewShared/llvm/3.2/source > setenv MACOSX_DEPLOYMENT_TARGET 10.8 > /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk -L/Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug -F/Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug -filelist /Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/LLVM.build/Debug/AsanTest.build/Objects-normal/x86_64/AsanTest.LinkFileList -mmacosx-version-min=10.8 -framework Foundation -Wl,-search_paths_first -Wl,-headerpad_max_install_names -lpthread /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libgtest.a /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libgtest_main.a /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libLLVMSupport.a /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/clang/3.2/lib/darwin/Debug/libclang_rt.asan_osx.a /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libgtest.a /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libLLVMSupport.a -lpthread -fobjc-link-runtime /Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_globals_test.cc.asan.o /Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_test.cc.asan.o /Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_mac_test.mm.asan.o -o /Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug/AsanTest > > duplicate symbol __Z11GlobalsTesti in: > /Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/LLVM.build/Debug/AsanTest.build/Objects-normal/x86_64/asan_globals_test.o > /Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_globals_test.cc.asan.o > duplicate symbol _kStartupStr in: > /Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/LLVM.build/Debug/AsanTest.build/Objects-normal/x86_64/asan_mac_test.o > /Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_mac_test.mm.asan.o > and 370 more… > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20121219/c47a8a95/attachment.html>
Hi Richard! On Thu, Dec 20, 2012 at 12:48 AM, Nick Kledzik <kledzik at apple.com> wrote:> Those look like the linker is being passed the same .o file built twice, > ex: > ../Objects-normal/x86_64/asan_globals_test.o > ../lib/asan/tests/asan_globals_test.cc.asan.o > > So, the symbols are colliding. Something is set up wrong in the xcode > project. > > -Nick > > On Dec 19, 2012, at 9:48 AM, Relph, Richard wrote: > > Following a blend of instructions on 3 web pages, I have succeeded in > getting LLVM 3.2 (with clang, extras, and compiler-rt) building - but not > testing - on Xcode. I used CMake 2.8.10 GUI to create the Xcode project > file. Below are my notes. > > First, I believe CMake ends up setting things up so that Xcode has 1 > warning after scanning the project having to do with hires images or some > such… it takes a long time to fix that up in a project as large as this, > but I'm not sure there's anything we can do about it. > Second, a build of the ALL_BUILD target in Xcode produces 16 warnings > about 8 functions declared noreturn, but without a expected > __builtin_unreachable() before the end of the function. (The first attempt > to build produced 2 errors, the first an unable to create directory error > for > runtime/libprofile/LLVM.build/Debug/profile_rt-static.build/Objects-normal/x86_64; > the second a libtool failure… both went away upon a rebuild.) > Third, a build of the check-all target produced 8 warnings about the 8 > functions declared noreturn as for ALL_BUILD, and 6 or 7 "errors", mostly > from asan_mac_test.mm. After fixing up these "errors" (int vs. size_t > comparisons and malloc being assigned to volatile pointers), I got 372 > duplicate symbol errors from this: > > Ld > /Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug/AsanTest > normal x86_64 > cd /Volumes/Shared/NewShared/llvm/3.2/source > setenv MACOSX_DEPLOYMENT_TARGET 10.8 > > /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ > -arch x86_64 -isysroot > /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk > -L/Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug > -F/Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug > -filelist > /Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/LLVM.build/Debug/AsanTest.build/Objects-normal/x86_64/AsanTest.LinkFileList > -mmacosx-version-min=10.8 -framework Foundation -Wl,-search_paths_first > -Wl,-headerpad_max_install_names -lpthread > /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libgtest.a > /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libgtest_main.a > /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libLLVMSupport.a > /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/clang/3.2/lib/darwin/Debug/libclang_rt.asan_osx.a > /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libgtest.a > /Volumes/Shared/NewShared/llvm/3.2/xcode/lib/Debug/libLLVMSupport.a > -lpthread -fobjc-link-runtime > /Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_globals_test.cc.asan.o > /Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_test.cc.asan.o > /Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_mac_test.mm.asan.o > -o > /Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/Debug/AsanTest > > duplicate symbol __Z11GlobalsTesti in: > > /Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/LLVM.build/Debug/AsanTest.build/Objects-normal/x86_64/asan_globals_test.o > > /Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_globals_test.cc.asan.o > duplicate symbol _kStartupStr in: > > /Volumes/Shared/NewShared/llvm/3.2/xcode/projects/compiler-rt/lib/asan/tests/LLVM.build/Debug/AsanTest.build/Objects-normal/x86_64/asan_mac_test.o > > /Volumes/Shared/NewShared/llvm/3.2/source/../xcode/projects/compiler-rt/lib/asan/tests/asan_mac_test.mm.asan.o > and 370 more… > > Recently the way we build ASan unit tests has changed. Could you pleasecheck if your XCode build works for the trunk?> _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev > > > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev > >-- Alexey Samsonov, MSK -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20121221/871fc99d/attachment.html>