Got failed for building arm32 arch bcc #29
Description
I have support adeb on my arm64 android device,i just run " adeb prepare --full"，and then
the adeb runs perfect on the arm64 android device.Adeb is so powerful for debugging.
And then I want to support adeb on my arm32 platform,so i try to "adeb prepare --arch armel --build --bcc --kernelsrc /path/to/kernel-source/", but i got failed when build bcc,the the error message as follow:
"""
[ 90%] Building CXX object tests/cc/CMakeFiles/test_libbcc.dir/test_shared_table.cc.o
In file included from /bcc-master/tests/cc/test_shared_table.cc:17:
In file included from /bcc-master/src/cc/api/BPF.h:25:
In file included from /bcc-master/src/cc/api/BPFTable.h:30:
In file included from /bcc-master/src/cc/bcc_syms.h:24:
/bcc-master/src/cc/libbpf/include/uapi/linux/bpf.h:3405:1: warning: struct has size 0 in C, size 1 in C++ [-Wextern-c-compat]
struct bpf_raw_tracepoint_args {
^
1 warning generated.
[ 90%] Building CXX object tests/cc/CMakeFiles/test_libbcc.dir/test_usdt_args.cc.o
/usr/bin/ld: ../../src/cc/frontends/clang/libclang_frontend.a(loader.cc.o): in function ebpf::ClangLoader::do_compile(std::unique_ptr<llvm::Module, std::default_delete<llvm::Module> >*, ebpf::TableStorage&, bool, std::vector<char const*, std::allocator<char const*> > const&, std::vector<char const*, std::allocator<char const*> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::unique_ptr<llvm::MemoryBuffer, std::default_delete<llvm::MemoryBuffer> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, ebpf::FuncSource&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::map<int, std::tuple<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, int, int, int>, std::less<int>, std::allocator<std::pair<int const, std::tuple<int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, int, int, int, int> > > >&, std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > > >&)': loader.cc:(.text+0x2688): undefined reference to __atomic_fetch_sub_4'
/usr/bin/ld: loader.cc:(.text+0x2cf4): undefined reference to __atomic_fetch_add_4' /usr/bin/ld: loader.cc:(.text+0x2d44): undefined reference to __atomic_fetch_add_4'
/usr/bin/ld: loader.cc:(.text+0x316c): undefined reference to __atomic_fetch_add_4' /usr/bin/ld: loader.cc:(.text+0x31bc): undefined reference to __atomic_fetch_add_4'
/usr/bin/ld: loader.cc:(.text+0x3618): undefined reference to `__atomic_fetch_add_4'
"""
And then i tried to build arm64 bcc by myself, runs "adeb prepare --arch arm64 --build --bcc --kernelsrc /path/to/kernel-source/" on the arm64 device, and the bcc built successful and the adeb works well.
So, i guess the bcc maybe not support arm architecture.
Ask for your help that the adeb support arm architeture,and i could get adeb for arm32 device by running "adeb prepare --full --arch armel".
Waiting for your good news