From: Don Zickus <dzic...@redhat.com>
Fix binutils breakage
The binutils package in Rawhide has stricter checks about PIE/PIC code
and will start reporting errors if it detects mixing and matching no-PIE
with PIE binaries (especially around bpf binaries).
Example errors look like:
/usr/bin/ld: /tmp/ccL7dkfR.o: relocation R_X86_64_32S against `.rodata'
can not be used when making a PIE object; recompile with -fPIE
/usr/bin/ld: failed to set dynamic section sizes: bad value
collect2: error: ld returned 1 exit status
Fix this by adding more CFLAGS to force PIE/PIC generated binaries to
bpf releated selftests, tools and samples.
This patch was provided by Carlos O'Donell and understands how it works.
I am just the middle man.
All -fPIE errors are resolved except for one about libbpf.a. The static
version of the library doesn't take CFLAGS so it can't be forced to
build with PIE/PIC. This error is ignored by the spec file, so it is
ignored by this patch too.
Signed-off-by: Don Zickus <dzic...@redhat.com>
diff --git a/redhat/kernel.spec.template b/redhat/kernel.spec.template
index blahblah..blahblah 100644
--- a/redhat/kernel.spec.template
+++ b/redhat/kernel.spec.template
@@ -2769,7 +2769,7 @@ if [ ! -f include/generated/autoconf.h ]; then
%{make} %{?_smp_mflags} modules_prepare
fi
-%{make} %{?_smp_mflags} ARCH=$Arch V=1 M=samples/bpf/
VMLINUX_H="${RPM_VMLINUX_H}" || true
+%{make} %{?_smp_mflags} TPROGS_CFLAGS="%{?build_hostcflags}" ARCH=$Arch V=1
M=samples/bpf/ VMLINUX_H="${RPM_VMLINUX_H}" || true
# Prevent bpf selftests to build bpftool repeatedly:
export BPFTOOL=$(pwd)/tools/bpf/bpftool/bpftool
@@ -2783,7 +2783,7 @@ pushd tools/testing/selftests
force_targets=""
%endif
-%{make} %{?_smp_mflags} ARCH=$Arch V=1 TARGETS="bpf mm livepatch net
net/forwarding net/mptcp netfilter tc-testing memfd drivers/net/bonding"
SKIP_TARGETS="" $force_targets
INSTALL_PATH=%{buildroot}%{_libexecdir}/kselftests VMLINUX_H="${RPM_VMLINUX_H}"
install
+%{make} %{?_smp_mflags} USERCFLAGS="%{?build_hostcflags}"
USERLDFLAGS="%{?build_hostldflags}" ARCH=$Arch V=1 TARGETS="bpf mm livepatch
net net/forwarding net/mptcp netfilter tc-testing memfd drivers/net/bonding"
SKIP_TARGETS="" $force_targets
INSTALL_PATH=%{buildroot}%{_libexecdir}/kselftests VMLINUX_H="${RPM_VMLINUX_H}"
install
# 'make install' for bpf is broken and upstream refuses to fix it.
# Install the needed files manually.
--
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2749
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