Build Boost shared libraries and source for Raspberry Pi on Ubuntu

[terrisgit]

I am trying to build boost using this project and rules_foreign_cc. See bazel-contrib/rules_foreign_cc#297 .

I am using --config=pi.

On OSX I get the following error:

ERROR: /private/var/tmp/_bazel_terris/edf155d50c43cc61a3e8b69da84398f0/external/rpi_bazel/tools/cc_toolchain/BUILD:20:1: in cc_toolchain_suite rule @rpi_bazel//tools/cc_toolchain:toolchain: cc_toolchain_suite '@rpi_bazel//tools/cc_toolchain:toolchain' does not contain a toolchain for cpu 'armeabihf'

[jpieper]

Yeah, unfortunately I wouldn't expect this to work on OS X at all. It is limited to Linux at this point.

[terrisgit]

I saw this in #2 - maybe add it to the README? So yep.. this works with the master branch:

bazel build --compiler=clang test
bazel build --config=pi --compiler=clang test

[terrisgit]

ERROR: /media/sf_smart/pe-compute/test/BUILD:1:1: Linking of rule '//test:test' failed (Exit 1) clang-clang failed: error executing command external/rpi_bazel/tools/cc_toolchain/wrapper/clang-clang -o bazel-out/armeabihf-fastbuild/bin/test/test '-Wl,-rpath,$ORIGIN/../_solib_armeabihf/' ... (remaining 19 argument(s) skipped)

Use --sandbox_debug to see verbose messages from the sandbox
ld.lld: error: bazel-out/armeabihf-fastbuild/bin/_solib_armeabihf/_U_S_Sboost_Clog___Uboost_Slog_Slib/libboost_atomic.so.1.65.0 is incompatible with armelf_linux_eabi

[terrisgit]

Using the "file" command, I determined the .so files are not built for ARM. So sadly the toolchain is not getting passed to Boost's b2 builder.

ELF 64-bit LSB shared object, x86-64, version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=0555073ad8791b8aeab0e746c6aa67d920194e3e, with debug_info, not stripped

[jpieper]

Are you using a system version of bazel or the 0.26.1 that is downloaded?

[terrisgit]

0.26.1 downloaded

[terrisgit]

The toolchain doesn't appear to work with CMake either.

The BUILD file is here: https://github.com/dev-guy/vsomeip-bazel/blob/master/vsomeip/BUILD

The key issue seems to be:

/tmp/tmp.X5xqrpaTj2/CMakeFiles/CMakeTmp/external/org_llvm_clang/bin/clang: No such file or directory

How to stop Bazel from deleting files in /tmp too early?

_____ BEGIN BUILD LOGS _____
Bazel external C/C++ Rules #0.0.8. Building library 'vsomeip'
Environment:______________EXT_BUILD_ROOT=/home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp
INSTALLDIR=/home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp/bazel-out/k8-fastbuild/bin/vsomeip/vsomeip
PWD=/home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp
BUILD_TMPDIR=/tmp/tmp.X5xqrpaTj2
TMPDIR=/tmp
EXT_BUILD_DEPS=/home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp/bazel_foreign_cc_deps_vsomeip
SHLVL=2
BUILD_LOG=bazel-out/k8-fastbuild/bin/vsomeip/vsomeip/logs/CMake.log
BUILD_SCRIPT=bazel-out/k8-fastbuild/bin/vsomeip/vsomeip/logs/CMake_script.sh
PATH=/home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp:/home/terris/.pyenv/plugins/pyenv-virtualenv/shims:/home/terris/.pyenv/shims:/home/terris/.pyenv/bin:/home/terris/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/terris/.bazel/bin:/home/terris/bin
_=/usr/bin/env
__________________________-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
-- Check for working C compiler: /home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp/external/rpi_bazel/tools/cc_toolchain/wrapper/clang-clang
-- Check for working C compiler: /home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp/external/rpi_bazel/tools/cc_toolchain/wrapper/clang-clang -- broken
CMake Error at /usr/share/cmake-3.10/Modules/CMakeTestCCompiler.cmake:52 (message):
  The C compiler

    "/home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp/external/rpi_bazel/tools/cc_toolchain/wrapper/clang-clang"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /tmp/tmp.X5xqrpaTj2/CMakeFiles/CMakeTmp
    
    Run Build Command:"/usr/bin/make" "cmTC_eb9d2/fast"
    /usr/bin/make -f CMakeFiles/cmTC_eb9d2.dir/build.make CMakeFiles/cmTC_eb9d2.dir/build
    make[1]: Entering directory '/tmp/tmp.X5xqrpaTj2/CMakeFiles/CMakeTmp'
    Building C object CMakeFiles/cmTC_eb9d2.dir/testCCompiler.c.o
    /home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp/external/rpi_bazel/tools/cc_toolchain/wrapper/clang-clang   -nostdinc++ -isystem /home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp/external/org_llvm_libcxx/include -isystem /home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp/external/org_llvm_libcxxabi/include -Wno-builtin-macro-redefined -D__DATE__="redacted" -D__TIMESTAMP__="redacted" -D__TIME__="redacted" -fPIE -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1 -fstack-protector -Wall -fno-omit-frame-pointer -no-canonical-prefixes    -o CMakeFiles/cmTC_eb9d2.dir/testCCompiler.c.o   -c /tmp/tmp.X5xqrpaTj2/CMakeFiles/CMakeTmp/testCCompiler.c
    /home/terris/.cache/bazel/_bazel_terris/0679beeba7657bf10887278727d0e849/sandbox/linux-sandbox/207/execroot/pecomp/external/rpi_bazel/tools/cc_toolchain/wrapper/clang-clang: line 17: /tmp/tmp.X5xqrpaTj2/CMakeFiles/CMakeTmp/external/org_llvm_clang/bin/clang: No such file or directory
    CMakeFiles/cmTC_eb9d2.dir/build.make:65: recipe for target 'CMakeFiles/cmTC_eb9d2.dir/testCCompiler.c.o' failed
    make[1]: *** [CMakeFiles/cmTC_eb9d2.dir/testCCompiler.c.o] Error 127
    make[1]: Leaving directory '/tmp/tmp.X5xqrpaTj2/CMakeFiles/CMakeTmp'
    Makefile:126: recipe for target 'cmTC_eb9d2/fast' failed
    make: *** [cmTC_eb9d2/fast] Error 2

[terrisgit]

In case you want to help https://github.com/dev-guy/pi-bazel-boost-vsomeip

[terrisgit]

If you have a moment, could you please verify .bazelrc and WORKSPACE are OK? They are brief. I'm not sure I have things in the correct order.

• https://github.com/dev-guy/pi-bazel-boost-vsomeip/blob/master/.bazelrc
• https://github.com/dev-guy/pi-bazel-boost-vsomeip/blob/master/WORKSPACE

[jpieper]

I didn't see anything obviously wrong with your WORKSPACE, but I admit to not really having any experience with merging the more hermetic approach that mjbots/rpi_bazel and mjbots/bazel_deps takes with rules_foreign_cc. I'd recommend just making a simple BUILD.bazel file for your library and not messing with cmake at all. There are plenty of examples in https://github.com/mjbots/bazel_deps to choose from.