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| author |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-01-22 22:45:23 -0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2019-01-23 17:35:32 -0800 |
| commit | 9e4c24e7ee7dfd3898269519103e823892b730d8 (patch) | |
| tree | b62ec0289acccf464e0fc6bcee8fd3417f4bc24c /include/linux/bpf_verifier.h | |
| parent | selftests: bpf: add tests for dead code removal (diff) | |
| download | linux-dev-9e4c24e7ee7dfd3898269519103e823892b730d8.tar.xz linux-dev-9e4c24e7ee7dfd3898269519103e823892b730d8.zip | |
bpf: verifier: record original instruction index
The communication between the verifier and advanced JITs is based
on instruction indexes. We have to keep them stable throughout
the optimizations otherwise referring to a particular instruction
gets messy quickly.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | include/linux/bpf_verifier.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index 573cca00a0e6..f3ae00ee5516 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -187,6 +187,7 @@ struct bpf_insn_aux_data { int sanitize_stack_off; /* stack slot to be cleared */ bool seen; /* this insn was processed by the verifier */ u8 alu_state; /* used in combination with alu_limit */ + unsigned int orig_idx; /* original instruction index */ }; #define MAX_USED_MAPS 64 /* max number of maps accessed by one eBPF program */ |