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When using -icount, it's useful for the CPU_LOG_EXEC logging to include information about when cpu_io_recompile() was called, because it alerts the reader of the log that the tracing of a previous TB execution may not actually correspond to an actually executed instruction. For instance if you're using -icount and also -singlestep then a guest instruction that makes an IO access appears in two "Trace" lines, once in a TB that triggers the cpu_io_recompile() and then again in the TB that actually executes. (This is a similar reason to why the "Stopped execution of TB chain before..." logging in cpu_tb_exec() is helpful when trying to track execution flow in the logs.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20201013122658.4620-1-peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> |
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