Hi,
The patchset addresses two issues in bpf line info for arm64:
(1) insn_to_jit_off only considers the body itself and ignores
prologue before the body. Fixed in patch #1.
(2) insn_to_jit_off passed to bpf_prog_fill_jited_linfo() is
calculated in instruction granularity instead of bytes
granularity. Fixed in patch #2.
Comments are always welcome.
Regards,
Tao
Change Log:
v4:
* patch #2: convert ctx.offset into byte offset before call
bpf_prog_fill_jited_linfo() instead of converting it back and forth.
v3: https://lore.kernel.org/bpf/20220208012539.491753-1-houtao1@xxxxxxxxxx
* patch #2: explain why bpf2a64_offset() needs update
* add Fixes tags in both patches
v2: https://lore.kernel.org/bpf/20220125105707.292449-1-houtao1@xxxxxxxxxx
* split into two independent patches (from Daniel)
* use AARCH64_INSN_SIZE instead of defining INSN_SIZE
v1: https://lore.kernel.org/bpf/20220104014236.1512639-1-houtao1@xxxxxxxxxx
Hou Tao (2):
bpf, arm64: call build_prologue() first in first JIT pass
bpf, arm64: feed byte-offset into bpf line info
arch/arm64/net/bpf_jit_comp.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
--
2.18.2
