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cmake build error log
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| $ conan install -s compiler.cppstd=17 -s compiler=clang -s compiler.version=7.0 --build missing . | |
| Configuration: | |
| [settings] | |
| arch=armv7 | |
| arch_build=armv7 | |
| build_type=Release | |
| compiler=clang | |
| compiler.cppstd=17 | |
| compiler.version=7.0 | |
| os=Linux | |
| os_build=Linux | |
| [options] | |
| [build_requires] | |
| [env] | |
| Version ranges solved | |
| Version range '>=4.3.0 <5.0' required by 'conanfile.txt' resolved to 'nanobench/4.3.5' in local cache | |
| conanfile.txt: Installing package | |
| Requirements | |
| nanobench/4.3.5 from 'conancenter' - Cache | |
| Packages | |
| nanobench/4.3.5:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache | |
| Installing (downloading, building) binaries... | |
| nanobench/4.3.5: Already installed! | |
| conanfile.txt: Generator cmake created conanbuildinfo.cmake | |
| conanfile.txt: Generator txt created conanbuildinfo.txt | |
| conanfile.txt: Aggregating env generators | |
| conanfile.txt: Generated conaninfo.txt | |
| conanfile.txt: Generated graphinfo | |
| $ cmake . | |
| -- Conan: Adjusting output directories | |
| -- Conan: Using cmake targets configuration | |
| -- Conan: Adjusting default RPATHs Conan policies | |
| -- Conan: Adjusting language standard | |
| -- Current conanbuildinfo.cmake directory: /home/pi/go/src/github.com/mcandre/swiper | |
| -- Conan: Checking correct version: 7.0 | |
| -- Configuring done | |
| -- Generating done | |
| -- Build files have been written to: /home/pi/go/src/github.com/mcandre/swiper | |
| $ VERBOSE=1 cmake --build . --config Release | |
| /usr/bin/cmake -S/home/pi/go/src/github.com/mcandre/swiper -B/home/pi/go/src/github.com/mcandre/swiper --check-build-system CMakeFiles/Makefile.cmake 0 | |
| /usr/bin/cmake -E cmake_progress_start /home/pi/go/src/github.com/mcandre/swiper/CMakeFiles /home/pi/go/src/github.com/mcandre/swiper/CMakeFiles/progress.marks | |
| /usr/bin/make -f CMakeFiles/Makefile2 all | |
| make[1]: Entering directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| /usr/bin/make -f CMakeFiles/bench-swiper-instrument.dir/build.make CMakeFiles/bench-swiper-instrument.dir/depend | |
| make[2]: Entering directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| cd /home/pi/go/src/github.com/mcandre/swiper && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper/CMakeFiles/bench-swiper-instrument.dir/DependInfo.cmake --color= | |
| make[2]: Leaving directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| /usr/bin/make -f CMakeFiles/bench-swiper-instrument.dir/build.make CMakeFiles/bench-swiper-instrument.dir/build | |
| make[2]: Entering directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| make[2]: Nothing to be done for 'CMakeFiles/bench-swiper-instrument.dir/build'. | |
| make[2]: Leaving directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| [ 25%] Built target bench-swiper-instrument | |
| /usr/bin/make -f CMakeFiles/swiper.profraw.dir/build.make CMakeFiles/swiper.profraw.dir/depend | |
| make[2]: Entering directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| cd /home/pi/go/src/github.com/mcandre/swiper && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper/CMakeFiles/swiper.profraw.dir/DependInfo.cmake --color= | |
| make[2]: Leaving directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| /usr/bin/make -f CMakeFiles/swiper.profraw.dir/build.make CMakeFiles/swiper.profraw.dir/build | |
| make[2]: Entering directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| /usr/bin/cmake -E env LLVM_PROFILE_FILE=swiper.profraw /home/pi/go/src/github.com/mcandre/swiper/bin/bench-swiper-instrument 00071B030141 | |
| Warning, results might be unstable: | |
| * CPU frequency scaling enabled: CPU 0 between 600.0 and 1,500.0 MHz | |
| * CPU governor is 'ondemand' but should be 'performance' | |
| * Turbo is enabled, CPU frequency will fluctuate | |
| Recommendations | |
| * Use 'pyperf system tune' before benchmarking. See https://github.com/psf/pyperf | |
| | ns/op | op/s | err% | total | benchmark | |
| |--------------------:|--------------------:|--------:|----------:|:---------- | |
| | 58.25 | 17,166,768.10 | 0.0% | 11.67 | `crack` | |
| make[2]: Leaving directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| [ 25%] Built target swiper.profraw | |
| /usr/bin/make -f CMakeFiles/swiper.profdata.dir/build.make CMakeFiles/swiper.profdata.dir/depend | |
| make[2]: Entering directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| cd /home/pi/go/src/github.com/mcandre/swiper && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper/CMakeFiles/swiper.profdata.dir/DependInfo.cmake --color= | |
| make[2]: Leaving directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| /usr/bin/make -f CMakeFiles/swiper.profdata.dir/build.make CMakeFiles/swiper.profdata.dir/build | |
| make[2]: Entering directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| llvm-profdata merge -output swiper.profdata swiper.profraw | |
| make[2]: Leaving directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| [ 25%] Built target swiper.profdata | |
| /usr/bin/make -f CMakeFiles/bench-swiper.dir/build.make CMakeFiles/bench-swiper.dir/depend | |
| make[2]: Entering directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| cd /home/pi/go/src/github.com/mcandre/swiper && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper /home/pi/go/src/github.com/mcandre/swiper/CMakeFiles/bench-swiper.dir/DependInfo.cmake --color= | |
| make[2]: Leaving directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| /usr/bin/make -f CMakeFiles/bench-swiper.dir/build.make CMakeFiles/bench-swiper.dir/build | |
| make[2]: Entering directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| [ 33%] Building CXX object CMakeFiles/bench-swiper.dir/src/cmd/bench-swiper/main.cpp.o | |
| /usr/bin/cmake -E __run_co_compile --tidy="clang-tidy;-header-filter=/home/pi/go/src/github.com/mcandre/swiper" --source=/home/pi/go/src/github.com/mcandre/swiper/src/cmd/bench-swiper/main.cpp -- /usr/bin/c++ -I/home/pi/go/src/github.com/mcandre/swiper/include -isystem /home/pi/.conan/data/nanobench/4.3.5/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include -O3 -Werror -std=c++17 -fno-exceptions -Wextra -Wall -pedantic -Weffc++ -Wmost -flto -fprofile-use=swiper.profdata -o CMakeFiles/bench-swiper.dir/src/cmd/bench-swiper/main.cpp.o -c /home/pi/go/src/github.com/mcandre/swiper/src/cmd/bench-swiper/main.cpp | |
| /home/pi/go/src/github.com/mcandre/swiper/src/cmd/bench-swiper/main.cpp:12:10: error: 'nanobench.h' file not found [clang-diagnostic-error] | |
| #include <nanobench.h> | |
| ^ | |
| Error while trying to load a compilation database: | |
| Could not auto-detect compilation database for file "/home/pi/go/src/github.com/mcandre/swiper/src/cmd/bench-swiper/main.cpp" | |
| No compilation database found in /home/pi/go/src/github.com/mcandre/swiper/src/cmd/bench-swiper or any parent directory | |
| fixed-compilation-database: Error while opening fixed database: No such file or directory | |
| json-compilation-database: Error while opening JSON database: No such file or directory | |
| Running without flags. | |
| 6511 warnings and 1 error generated. | |
| Error while processing /home/pi/go/src/github.com/mcandre/swiper/src/cmd/bench-swiper/main.cpp. | |
| Suppressed 6511 warnings (6511 in non-user code). | |
| Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. | |
| Found compiler error(s). | |
| make[2]: *** [CMakeFiles/bench-swiper.dir/build.make:63: CMakeFiles/bench-swiper.dir/src/cmd/bench-swiper/main.cpp.o] Error 1 | |
| make[2]: Leaving directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| make[1]: *** [CMakeFiles/Makefile2:228: CMakeFiles/bench-swiper.dir/all] Error 2 | |
| make[1]: Leaving directory '/home/pi/go/src/github.com/mcandre/swiper' | |
| make: *** [Makefile:95: all] Error 2 | |
| $ find ~/.conan -name nanobench.h | |
| /home/pi/.conan/data/nanobench/4.3.5/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/nanobench.h | |
| $ cmake --version | |
| cmake version 3.16.3 | |
| CMake suite maintained and supported by Kitware (kitware.com/cmake). | |
| $ conan --version | |
| Conan version 1.40.2 | |
| $ lsb_release -a | |
| No LSB modules are available. | |
| Distributor ID: Raspbian | |
| Description: Raspbian GNU/Linux 10 (buster) | |
| Release: 10 | |
| Codename: buster |
Able to reproduce the same error behavior in a debian:buster Docker container. The problem is not specific to ARM. It may be an artifact of the old development tools in the Debian Buster base which Raspberry Pi uses for the current stable RaspbiOS release.
Something appears to be wrong in how clang v7 handles PGO compilation units.
diff --git a/home/pi/Downloads/a.txt b/home/pi/Downloads/b.txt
index 8938c83..a51e470 100644
--- a/home/pi/Downloads/a.txt
+++ b/home/pi/Downloads/b.txt
@@ -1 +1 @@
/usr/bin/cmake -E __run_co_compile --tidy="clang-tidy;-header-filter=/home/pi/go/src/github.com/mcandre/swiper" --source=/home/pi/go/src/github.com/mcandre/swiper/src/cmd/bench-swiper/main.cpp -- /usr/bin/c++ -I/home/pi/go/src/github.com/mcandre/swiper/include -isystem /home/pi/.conan/data/nanobench/4.3.5/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include -O3 -Werror -std=c++17 -fno-exceptions -Wextra -Wall -pedantic -Weffc++ -Wmost [--fprofile-generate-]{+-flto -fprofile-use=swiper.profdata+} -o [-CMakeFiles/bench-swiper-instrument.dir/src/cmd/bench-swiper/main.cpp.o-]{+CMakeFiles/bench-swiper.dir/src/cmd/bench-swiper/main.cpp.o+} -c /home/pi/go/src/github.com/mcandre/swiper/src/cmd/bench-swiper/main.cpp
Temporarily disabling PGO locally.
This reveals a similar header not found error for swiper/swiper.hpp.
Perhaps clang v7 is very strict about compiler flag order.
Looks to be clang-tidy v7 that throws up. When tidy is disabled, then the include errors go away.
omg and now clang v7 is segfaulting!
$ /usr/bin/c++ -v -Wl,-v -O3 -Werror -std=c++17 -fno-exceptions -Wextra -Wall -pedantic -Weffc++ -Wmost -flto -fprofile-use=swiper.profdata CMakeFiles/bench-swiper.dir/src/cmd/bench-swiper/main.cpp.o CMakeFiles/bench-swiper.dir/src/swiper.cpp.o -o bin/bench-swiper
clang version 7.0.1-8+rpi3+deb10u2 (tags/RELEASE_701/final)
Target: armv6k-unknown-linux-gnueabihf
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/arm-linux-gnueabihf/4.9
Found candidate GCC installation: /usr/bin/../lib/gcc/arm-linux-gnueabihf/4.9.4
Found candidate GCC installation: /usr/bin/../lib/gcc/arm-linux-gnueabihf/5
Found candidate GCC installation: /usr/bin/../lib/gcc/arm-linux-gnueabihf/5.5.0
Found candidate GCC installation: /usr/bin/../lib/gcc/arm-linux-gnueabihf/6
Found candidate GCC installation: /usr/bin/../lib/gcc/arm-linux-gnueabihf/6.5.0
Found candidate GCC installation: /usr/bin/../lib/gcc/arm-linux-gnueabihf/7
Found candidate GCC installation: /usr/bin/../lib/gcc/arm-linux-gnueabihf/7.3.0
Found candidate GCC installation: /usr/bin/../lib/gcc/arm-linux-gnueabihf/8
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/4.9
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/4.9.4
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/5
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/5.5.0
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/6
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/6.5.0
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/7
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/7.3.0
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/8
Selected GCC installation: /usr/bin/../lib/gcc/arm-linux-gnueabihf/8
Candidate multilib: .;@m32
Selected multilib: .;@m32
"/usr/bin/ld" -X --hash-style=both --build-id --eh-frame-hdr -m armelf_linux_eabi -dynamic-linker /lib/ld-linux-armhf.so.3 -o bin/bench-swiper /usr/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crt1.o /usr/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crti.o /usr/bin/../lib/gcc/arm-linux-gnueabihf/8/crtbegin.o -L/usr/bin/../lib/gcc/arm-linux-gnueabihf/8 -L/usr/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf -L/usr/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../../lib -L/usr/lib/llvm-7/bin/../lib -L/lib/arm-linux-gnueabihf -L/lib/../lib -L/usr/lib/arm-linux-gnueabihf -L/usr/lib/../lib -L/usr/lib/arm-linux-gnueabihf/../../lib -L/usr/bin/../lib/gcc/arm-linux-gnueabihf/8/../../.. -L/usr/lib/llvm-7/bin/../lib -L/lib -L/usr/lib -plugin /usr/lib/llvm-7/bin/../lib/LLVMgold.so -plugin-opt=mcpu=mpcore -plugin-opt=O3 -v CMakeFiles/bench-swiper.dir/src/cmd/bench-swiper/main.cpp.o CMakeFiles/bench-swiper.dir/src/swiper.cpp.o -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc /usr/bin/../lib/gcc/arm-linux-gnueabihf/8/crtend.o /usr/bin/../lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crtn.o
GNU ld (GNU Binutils for Raspbian) 2.31.1
clang: error: unable to execute command: Segmentation fault
clang: error: linker command failed due to signal (use -v to see invocation)
Perhaps the debian buster LLVM toolchain is corrupting target triples. I'm seeing slightly different architecture names used at different stages of compilation.
Finally, libfuzzer is not available out of the box for Debian Buster / RaspbiOS clang & llvm.
Placing some cmake guards around PGO, tidy, and libfuzzer. Now swiper is able to build and run with the Debian Buster / RaspbiOS stable clang toolchain.
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For comparison, this has worked fine on Ubuntu 20.04 Focal Fossa. Somehow, conan cmake integration is breaking on Raspberry Pi.