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Only output backtracking information in log level 2
Backtracking information is very verbose, don't print it in log level 1 to improve readability. Signed-off-by: Christy Lee <christylee@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20211216213358.3374427-4-christylee@fb.com
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1 changed files with 3 additions and 3 deletions
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@ -2398,7 +2398,7 @@ static int backtrack_insn(struct bpf_verifier_env *env, int idx,
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if (insn->code == 0)
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return 0;
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if (env->log.level & BPF_LOG_LEVEL) {
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if (env->log.level & BPF_LOG_LEVEL2) {
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verbose(env, "regs=%x stack=%llx before ", *reg_mask, *stack_mask);
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verbose(env, "%d: ", idx);
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print_bpf_insn(&cbs, insn, env->allow_ptr_leaks);
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@ -2656,7 +2656,7 @@ static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
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DECLARE_BITMAP(mask, 64);
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u32 history = st->jmp_history_cnt;
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if (env->log.level & BPF_LOG_LEVEL)
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if (env->log.level & BPF_LOG_LEVEL2)
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verbose(env, "last_idx %d first_idx %d\n", last_idx, first_idx);
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for (i = last_idx;;) {
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if (skip_first) {
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@ -2743,7 +2743,7 @@ static int __mark_chain_precision(struct bpf_verifier_env *env, int regno,
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new_marks = true;
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reg->precise = true;
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}
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if (env->log.level & BPF_LOG_LEVEL) {
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if (env->log.level & BPF_LOG_LEVEL2) {
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verbose(env, "parent %s regs=%x stack=%llx marks:",
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new_marks ? "didn't have" : "already had",
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reg_mask, stack_mask);
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