ef71bece85
bpftool disassembler optionally uses LLVM to improve its capabilities.
Unfortunately, even if llvm-devel is installed, the feature detection of
LLVM doesn't work:
Auto-detecting system features:
... clang-bpf-co-re: [ on ]
... llvm: [ OFF ]
... libcap: [ on ]
... libbfd: [ on ]
The reason is that the feature detection tries to compile a simple C++
program and link it against libLLVM which fails as LDFLAGS contains -pie
while CXXFLAGS does not contain -fpie.
Fix this by setting EXTRA_CXXFLAGS from the bpftool build.
Signed-off-by: Viktor Malik <vmalik@redhat.com>
60 lines
1.8 KiB
RPMSpec
60 lines
1.8 KiB
RPMSpec
# We build bpftool from RHEL kernel sources, that's why we use
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# directly kernel tar for RHEL kernel build.
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# We update bpftool's 'sources' file with proper hash that's
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# used as kernel tar.
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# RHEL kernel version-release
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%define kver 5.14.0-535
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%define source linux-%{kver}%{?dist}
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Name: bpftool
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Version: 7.5.0
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# Currently, bpftool built from kernel uses kernel's release version (500+).
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# In order to do the transition smoothly, raise it to a sufficiently big number.
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# Once bpftool moves to 7.6.0, reset the release to 1.
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Release: 800%{?dist}
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Summary: Inspection and simple manipulation of eBPF programs and maps
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%global libname libbpf
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%global sources %{name}-%{libname}-v%{version}-sources
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License: GPL-2.0-only OR BSD-2-Clause
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Source: %{source}.tar.xz
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ExcludeArch: %{ix86}
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BuildRequires: gcc
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BuildRequires: make
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BuildRequires: binutils-devel
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BuildRequires: elfutils-libelf-devel
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BuildRequires: libcap-devel
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BuildRequires: llvm-devel
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BuildRequires: clang
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BuildRequires: python3-docutils
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BuildRequires: kernel-devel
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%description
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This package contains the bpftool, which allows inspection and simple
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manipulation of eBPF programs and maps.
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%prep
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%autosetup -p1 -n %{source}
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%build
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# We need to use vmlinux.h from kernel-devel rather than the one from the running system
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%define kernel_version %(rpm -q --qf "%%{VERSION}-%%{RELEASE}.%%{ARCH}" kernel-devel)
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pushd tools/bpf/bpftool
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%make_build EXTRA_CFLAGS="%{build_cflags}" EXTRA_CXXFLAGS="%{build_cflags}" EXTRA_LDFLAGS="%{build_ldflags}" VMLINUX_H="/usr/src/kernels/%{kernel_version}/vmlinux.h"
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%install
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pushd tools/bpf/bpftool
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%make_install prefix=%{_prefix} bash_compdir=%{_sysconfdir}/bash_completion.d/ mandir=%{_mandir} doc-install
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%files
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%{_sbindir}/bpftool
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%{_sysconfdir}/bash_completion.d/bpftool
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%{_mandir}/man8/bpftool*.8*
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%changelog
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%autochangelog
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