error linking to falcosecurity-libs built as a shared library

[Apteryks]

Hello,

This is not supported yet, but I'm working on a CMake patch to make it possible. Currently I encounter the following error, which I'll investigate later:

[  3%] Building CXX object userspace/sysdig/CMakeFiles/sysdig.dir/__/chisel/chisel_api.cpp.o
cd /home/maxim/src/sysdig/build/userspace/sysdig && /gnu/store/w55blczvj69cpv1cgcmb4sv4bfarqr4y-profile/bin/c++ -DCHISEL_TOOL_LIBRARY_NAME=\"sysdig\" -DHAS_CAPTURE -DPLATFORM_NAME=\"Linux\" -DSYSDIG_PROBE_BPF_FILEPATH=\".scap/scap-bpf.o\" -I/gnu/store/w55blczvj69cpv1cgcmb4sv4bfarqr4y-profile/include/luajit-2.1 -I/home/maxim/src/sysdig/build/userspace/sinspui -I/home/maxim/src/sysdig/userspace/sysdig/../sinspui -I/home/maxim/src/sysdig/build/userspace/sysdig -I/home/maxim/src/sysdig/userspace/sysdig/. -I/home/maxim/src/sysdig/userspace/sysdig/../chisel -I/home/maxim/src/sysdig/userspace/sysdig/.. -I/home/maxim/src/sysdig/build/driver/src -isystem /gnu/store/w55blczvj69cpv1cgcmb4sv4bfarqr4y-profile/lib/pkgconfig/../../include/falcosecurity/libsinsp -isystem /gnu/store/w55blczvj69cpv1cgcmb4sv4bfarqr4y-profile/lib/pkgconfig/../../include/falcosecurity/driver -isystem /gnu/store/w55blczvj69cpv1cgcmb4sv4bfarqr4y-profile/lib/pkgconfig/../../include/falcosecurity/libscap -isystem /gnu/store/w55blczvj69cpv1cgcmb4sv4bfarqr4y-profile/lib/pkgconfig/../../include/falcosecurity -isystem /gnu/store/f6y33sydrvp1m71vg44nr1kkcz0dq703-re2-2022-12-01/include -Wall -ggdb   -std=c++17 -O3 -fno-strict-aliasing -DNDEBUG -pthread -std=c++17 -MD -MT userspace/sysdig/CMakeFiles/sysdig.dir/__/chisel/chisel_api.cpp.o -MF CMakeFiles/sysdig.dir/__/chisel/chisel_api.cpp.o.d -o CMakeFiles/sysdig.dir/__/chisel/chisel_api.cpp.o -c /home/maxim/src/sysdig/userspace/chisel/chisel_api.cpp
 /home/maxim/src/sysdig/userspace/chisel/chisel_api.cpp: In lambda function:
/home/maxim/src/sysdig/userspace/chisel/chisel_api.cpp:845:67: error: invalid use of member function 'uint32_t sinsp_threadinfo::sinsp_userinfo::uid() const' (did you forget the '()' ?)
  845 |                         lua_pushnumber(ls, (uint32_t)tinfo.m_user.uid);
      |                                                      ~~~~~~~~~~~~~^~~
      |                                                                      ()
/home/maxim/src/sysdig/userspace/chisel/chisel_api.cpp:848:68: error: invalid use of member function 'uint32_t sinsp_threadinfo::sinsp_groupinfo::gid() const' (did you forget the '()' ?)
  848 |                         lua_pushnumber(ls, (uint32_t)tinfo.m_group.gid);
      |                                                      ~~~~~~~~~~~~~~^~~
      |                                                                       ()
/home/maxim/src/sysdig/userspace/chisel/chisel_api.cpp:876:57: error: invalid use of non-static member function 'std::string sinsp_threadinfo::sinsp_userinfo::name() const'
  876 |                         lua_pushstring(ls, tinfo.m_user.name);
      |                                            ~~~~~~~~~~~~~^~~~
In file included from /gnu/store/l2qsqb44l5i1qw05lg9baynp1jzl8brl-falcosecurity-libs-0.16.0/include/falcosecurity/libsinsp/metrics_collector.h:23,
                 from /gnu/store/l2qsqb44l5i1qw05lg9baynp1jzl8brl-falcosecurity-libs-0.16.0/include/falcosecurity/libsinsp/sinsp.h:73,
                 from /home/maxim/src/sysdig/userspace/chisel/chisel_api.cpp:27:
/gnu/store/l2qsqb44l5i1qw05lg9baynp1jzl8brl-falcosecurity-libs-0.16.0/include/falcosecurity/libsinsp/threadinfo.h:77:29: note: declared here
   77 |                 std::string name() const {
      |                             ^~~~
/home/maxim/src/sysdig/userspace/chisel/chisel_api.cpp: In static member function 'static int lua_cbacks::push_metric(lua_State*)':
/home/maxim/src/sysdig/userspace/chisel/chisel_api.cpp:1516:16: warning: unused variable 'inspector' [-Wunused-variable]
 1516 |         sinsp* inspector = ch->m_inspector;
      |                ^~~~~~~~~
make[2]: *** [userspace/sysdig/CMakeFiles/sysdig.dir/build.make:146: userspace/sysdig/CMakeFiles/sysdig.dir/__/chisel/chisel_api.cpp.o] Error 1

I'm posting it here in case someone has an idea that could accelerate my investigation. Thank you!

[therealbobo]

Hey @Apteryks! The libs api changed! If you look at the dev branch, you will notice that we already took care of that! The support for libs 0.16.0 it's on his way and it's only matter of driver build time :)

[Apteryks]

Thanks, I confirm using the latest commit resolves the problem.