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| author | Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | 2022-01-24 12:12:39 -0500 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-02-02 13:11:33 +0100 |
| commit | 5c105d55a9dc9e01535116ccfc26e703168a574f (patch) | |
| tree | 684ee72d42560ae6fe215f19832b5062ba979cbb /kernel/rseq.c | |
| parent | ec2444530612a886b406e2830d7f314d1a07d4bb (diff) | |
| download | lwn-5c105d55a9dc9e01535116ccfc26e703168a574f.tar.gz lwn-5c105d55a9dc9e01535116ccfc26e703168a574f.zip | |
selftests/rseq: introduce own copy of rseq uapi header
The Linux kernel rseq uapi header has a broken layout for the
rseq_cs.ptr field on 32-bit little endian architectures. The entire
rseq_cs.ptr field is planned for removal, leaving only the 64-bit
rseq_cs.ptr64 field available.
Both glibc and librseq use their own copy of the Linux kernel uapi
header, where they introduce proper union fields to access to the 32-bit
low order bits of the rseq_cs pointer on 32-bit architectures.
Introduce a copy of the Linux kernel uapi headers in the Linux kernel
selftests.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220124171253.22072-2-mathieu.desnoyers@efficios.com
Diffstat (limited to 'kernel/rseq.c')
0 files changed, 0 insertions, 0 deletions