Add libbpf-tools subpackage

Adding libbpf-tools subpackage. It was discussed and agreed
to package libbpf-tools under 'libbpf-tool' name and add 'bpf-'
prefix to binaries, please check in here:
  https://github.com/iovisor/bcc/pull/3263

At the moment the package has following binaries:

  $ rpm -ql libbpf-tools
  /usr/sbin/bpf-biolatency
  /usr/sbin/bpf-biopattern
  /usr/sbin/bpf-biosnoop
  /usr/sbin/bpf-biostacks
  /usr/sbin/bpf-bitesize
  /usr/sbin/bpf-cachestat
  /usr/sbin/bpf-cpudist
  /usr/sbin/bpf-cpufreq
  /usr/sbin/bpf-drsnoop
  /usr/sbin/bpf-execsnoop
  /usr/sbin/bpf-filelife
  /usr/sbin/bpf-funclatency
  /usr/sbin/bpf-hardirqs
  /usr/sbin/bpf-llcstat
  /usr/sbin/bpf-numamove
  /usr/sbin/bpf-opensnoop
  /usr/sbin/bpf-readahead
  /usr/sbin/bpf-runqlat
  /usr/sbin/bpf-runqlen
  /usr/sbin/bpf-runqslower
  /usr/sbin/bpf-softirqs
  /usr/sbin/bpf-syscount
  /usr/sbin/bpf-tcpconnect
  /usr/sbin/bpf-tcpconnlat
  /usr/sbin/bpf-vfsstat
  /usr/sbin/bpf-xfsslower
  ...

Signed-off-by: Jiri Olsa <jolsa@redhat.com>

bcc.spec

@@ -10,6 +10,12 @@
 %endif
 %endif
 
+%ifarch x86_64 ppc64 ppc64le aarch64
+%bcond_without libbpf_tools
+%else
+%bcond_with libbpf_tools
+%endif
+
 %bcond_with llvm_static
 
 %if %{without llvm_static}
@@ -28,7 +34,7 @@
 
 Name:           bcc
 Version:        0.19.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        BPF Compiler Collection (BCC)
 License:        ASL 2.0
 URL:            https://github.com/iovisor/bcc
@@ -120,6 +126,15 @@ Requires:       kernel-devel
 %description tools
 Command line tools for BPF Compiler Collection (BCC)
 
+%if %{with libbpf_tools}
+%package -n libbpf-tools
+Summary:        Command line libbpf tools for BPF Compiler Collection (BCC)
+BuildRequires:  libbpf-devel >= 0.0.5-3, libbpf-static >= 0.0.5-3
+BuildRequires:  bpftool
+
+%description -n libbpf-tools
+Command line libbpf tools for BPF Compiler Collection (BCC)
+%endif
 
 %prep
 %autosetup -p1 -n %{name}
@@ -133,6 +148,18 @@ Command line tools for BPF Compiler Collection (BCC)
         %{?with_llvm_shared:-DENABLE_LLVM_SHARED=1}
 %cmake_build
 
+# It was discussed and agreed to package libbpf-tools with
+# 'bpf-' prefix (https://github.com/iovisor/bcc/pull/3263)
+# Installing libbpf-tools binaries in temp directory and
+# renaming them in there and the install code will just
+# take them.
+%if %{with libbpf_tools}
+pushd libbpf-tools;
+make BPFTOOL=bpftool
+make DESTDIR=./tmp-install prefix= install
+(cd tmp-install/bin; for file in *; do mv $file bpf-$file; done;)
+popd
+%endif
 
 %install
 %cmake_install
@@ -162,6 +189,11 @@ rm -rf %{buildroot}%{_datadir}/%{name}/tools/old/
 # the machine (e.g, IP address)
 #%check
 
+%if %{with libbpf_tools}
+mkdir -p %{buildroot}/%{_sbindir}
+install libbpf-tools/tmp-install/bin/* %{buildroot}/%{_sbindir}
+%endif
+
 %ldconfig_scriptlets
 
 %files
@@ -196,8 +228,15 @@ rm -rf %{buildroot}%{_datadir}/%{name}/tools/old/
 %{_bindir}/bcc-lua
 %endif
 
+%if %{with libbpf_tools}
+%files -n libbpf-tools
+%{_sbindir}/bpf-*
+%endif
 
 %changelog
+* Wed Mar 29 2021 Jiri Olsa <jolsa@redhat.com> - 0.19.0-2
+- add libbpf-tools package
+
 * Mon Mar 29 2021 Jiri Olsa <jolsa@redhat.com> - 0.19.0-1
 - Rebase to latest upstream