## START: Set by rpmautospec
## (rpmautospec version 0.6.0)
## RPMAUTOSPEC: autorelease, autochangelog
%define autorelease(e:s:pb:n) %{?-p:0.}%{lua:
    release_number = 1;
    base_release_number = tonumber(rpm.expand("%{?-b*}%{!?-b:1}"));
    print(release_number + base_release_number - 1);
}%{?-e:.%{-e*}}%{?-s:.%{-s*}}%{!?-n:%{?dist}}
## END: Set by rpmautospec

%global toolchain clang

# upstream build system requires the use of libbpf and bpftool sources
%global bpftool_url https://github.com/libbpf/bpftool
%global bpftool_commit e17d6cf646e1b3107424386a62afc15a36b18f10
%global bpftool_shortcommit %(c=%{bpftool_commit}; echo ${c:0:7})
%global bpftool_date 20230926
%global bpftool_version 7.2.0^%{bpftool_date}git%{bpftool_shortcommit}

%global libbpf_url https://github.com/libbpf/libbpf
%global libbpf_commit 528cb9d3e933c2b10b152249779c2ff72efa4224
%global libbpf_shortcommit %(c=%{libbpf_commit}; echo ${c:0:7})
%global libbpf_date 20240125
%global libbpf_version 1.4.0~^%{libbpf_date}git%{libbpf_shortcommit}
 
Name:           scx_c_schedulers
Version:        0.1.7
Release:        %autorelease
Summary:        sched_ext schedulers written in c
 
License:        GPL-2.0-only
URL:            https://github.com/sched-ext/scx
 
Source0:        %{url}/archive/v%{version}/scx-%{version}.tar.gz
Source1:        %{bpftool_url}/archive/%{bpftool_commit}/bpftool-%{bpftool_version}.tar.gz
Source2:        %{libbpf_url}/archive/%{libbpf_commit}/libbpf-%{libbpf_version}.tar.gz
Source3:        %{name}.rpmlintrc
 
BuildRequires:  clang >= 17
BuildRequires:  meson >= 1.2.0
BuildRequires:  llvm
BuildRequires:  make
# This shouldn't be required as we're not building the rust schedulers
BuildRequires:  cargo
# libbpf deps
BuildRequires:  elfutils-libelf-devel
 
# upstream does not support dynamic linking
Provides:       bundled(bpftool) = %{bpftool_version}
Provides:       bundled(libbpf) = %{libbpf_version}
 
%description
Example sched_ext schedulers written in C (as opposed to Rust) that include:
"scx_central", "scx_flatcg", "scx_nest", "scx_pair", "scx_qmap", "scx_simple", 'scx_userland'.
 
%prep
%setup -n scx-%{version} -q
# provide the bpftool version we specify
tar xf %{SOURCE1}
mv bpftool-%{bpftool_commit} bpftool
# same license files as libbpf, no-op
 
# provide the libbpf version we specify
tar xf %{SOURCE2}
rmdir bpftool/libbpf
mv libbpf-%{libbpf_commit}/LICENSE libbpf-LICENSE
mv libbpf-%{libbpf_commit}/LICENSE.BSD-2-Clause  libbpf-LICENSE.BSD-2-Clause
mv libbpf-%{libbpf_commit}/LICENSE.LGPL-2.1 libbpf-LICENSE.LGPL-2.1
mv libbpf-%{libbpf_commit} bpftool/libbpf
cd bpftool/src
%make_build
cd ../libbpf/src
mkdir root
BUILD_STATIC_ONLY=y DESTDIR=root make install
 
%build
%meson -Dbpftool=./bpftool/src/bpftool -Dlibbpf_a=../bpftool/libbpf/src/libbpf.a -Dlibbpf_h=../bpftool/libbpf/src/root/usr/include -Denable_rust=false -Dsystemd=disabled
%meson_build
 
%install
%meson_install
 
%files
%license LICENSE libbpf-LICENSE*
%doc README.md
%{_bindir}/scx_*
%exclude %{_sysconfdir}/systemd/journald@sched-ext.conf
%exclude %{_sysconfdir}/default/scx
# systemd usage is not required so let users manually setup this service
# https://github.com/sched-ext/scx/blob/main/services/README.md
%exclude /usr/lib/systemd/system/scx.service
 
%changelog
## START: Generated by rpmautospec
* Wed Feb 14 2024 John Doe <packager@example.com> - 0.1.7-1
- Uncommitted changes
## END: Generated by rpmautospec