Append EXTRA_CFLAGS and HOST_EXTRACFLAGS to the BPF build.
This mitigates an issue introduced in GCC 15, where a {0} initializer
does not guarantee zeroing the entire union [1].
The common changes under tools to support EXTRA_CFLAGS and
HOST_EXTRACFLAGS are sent separately [2]. As suggested, BPF patches
would be picked up via the bpf tree, so this series only includes BPF
related changes.
Verification (bpf-ci):
Test 1: With full tools changes applied
https://github.com/kernel-patches/bpf/actions/runs/23439834394
Test 2: Only BPF changes
https://github.com/kernel-patches/bpf/actions/runs/23440507945
[1] https://gcc.gnu.org/gcc-15/changes.html
[2]
https://lore.kernel.org/linux-perf-users/[email protected]/T/#t
Signed-off-by: Leo Yan <[email protected]>
---
Leo Yan (6):
bpftool: Avoid adding EXTRA_CFLAGS to HOST_CFLAGS
bpftool: Append extra host flags
libbpf: Initialize CFLAGS before including Makefile.include
tools/bpf: build: Append extra cflags
selftests/bpf: Initialize operation name before use
selftests/bpf: Append extra cflags
tools/bpf/Makefile | 1 +
tools/bpf/bpftool/Makefile | 9 +++++++--
tools/lib/bpf/Makefile | 17 +++++++++--------
tools/testing/selftests/bpf/Makefile | 10 ++++++++--
tools/testing/selftests/bpf/prog_tests/verifier_log.c | 1 +
5 files changed, 26 insertions(+), 12 deletions(-)
---
base-commit: bfec8e88ff6022b056615ec71506703e7e54de82
change-id: 20260323-tools_build_fix_zero_init_bpf_only-52232f62fb7f
Best regards,
--
Leo Yan <[email protected]>
