Hou Tao d1c7759304 bpf, arm64: Feed byte-offset into bpf line info ...

[ Upstream commit dda7596c10 ]

insn_to_jit_off passed to bpf_prog_fill_jited_linfo() is calculated in
instruction granularity instead of bytes granularity, but BPF line info
requires byte offset.

bpf_prog_fill_jited_linfo() will be the last user of ctx.offset before
it is freed, so convert the offset into byte-offset before calling into
bpf_prog_fill_jited_linfo() in order to fix the line info dump on arm64.

Fixes: 37ab566c17 ("bpf: arm64: Enable arm64 jit to provide bpf_line_info")
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220226121906.5709-3-houtao1@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2022-04-08 14:40:18 +02:00

..

bpf_jit_comp.c

bpf, arm64: Feed byte-offset into bpf line info

2022-04-08 14:40:18 +02:00

bpf_jit.h

Merge branch 'for-next/bti' into for-next/core

2020-05-28 18:00:51 +01:00

Makefile

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21 10:50:46 +02:00