all: support linux KCOV_TRACE_UNIQ_[PC|EDGE|CMP] modes #5673
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KCOV_TRACE_UNIQ_PC and KCOV_TRACE_UNIQ_EDGE are enabled together, which are used to replace previous KCOV_TRACE_PC mode. KCOV_TRACE_UNIQ_CMP is used to replace KCOV_TRACE_CMP mode. With UNIQ modes, smaller cover buffer is required. Uniq mode for remote cover is not supported yet.
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KCOV_TRACE_UNIQ_PC and KCOV_TRACE_UNIQ_EDGE are enabled together, which are used to replace previous KCOV_TRACE_PC mode. KCOV_TRACE_UNIQ_CMP is used to replace KCOV_TRACE_CMP mode.
With UNIQ modes, smaller cover buffer is required.
Uniq mode for remote cover is not supported yet.
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https://github.com/google/syzkaller/blob/master/docs/contributing.md