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author | Ilya Leoshkevich <iii@linux.ibm.com> | 2021-10-26 03:08:26 +0200 |
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committer | Andrii Nakryiko <andrii@kernel.org> | 2021-10-25 20:39:41 -0700 |
commit | 45f2bebc8079788f62f22d9e8b2819afb1789d7b (patch) | |
tree | cb673afcb1620226a4947ed05c75ef34d6734356 /tools/testing/selftests/bpf/prog_tests/btf_endian.c | |
parent | 124c6003bf12351a6feef231849d570cd03c760c (diff) |
libbpf: Fix endianness detection in BPF_CORE_READ_BITFIELD_PROBED()
__BYTE_ORDER is supposed to be defined by a libc, and __BYTE_ORDER__ -
by a compiler. bpf_core_read.h checks __BYTE_ORDER == __LITTLE_ENDIAN,
which is true if neither are defined, leading to incorrect behavior on
big-endian hosts if libc headers are not included, which is often the
case.
Fixes: ee26dade0e3b ("libbpf: Add support for relocatable bitfields")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211026010831.748682-2-iii@linux.ibm.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/btf_endian.c')
0 files changed, 0 insertions, 0 deletions