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| author | Anton Protopopov <a.s.protopopov@gmail.com> | 2025-10-19 20:21:37 +0000 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2025-10-21 11:20:23 -0700 |
| commit | 2f69c5685427308d2f312646779313f3677536bc (patch) | |
| tree | caf0b94684fed954f24db8e6773324eae8fbef82 /tools/testing/selftests/bpf/prog_tests/autoload.c | |
| parent | 44481e4925327d833f2e37c8741406e4cabfe054 (diff) | |
bpf: make bpf_insn_successors to return a pointer
The bpf_insn_successors() function is used to return successors
to a BPF instruction. So far, an instruction could have 0, 1 or 2
successors. Prepare the verifier code to introduction of instructions
with more than 2 successors (namely, indirect jumps).
To do this, introduce a new struct, struct bpf_iarray, containing
an array of bpf instruction indexes and make bpf_insn_successors
to return a pointer of that type. The storage for all instructions
is allocated in the env->succ, which holds an array of size 2,
to be used for all instructions.
Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251019202145.3944697-10-a.s.protopopov@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/autoload.c')
0 files changed, 0 insertions, 0 deletions