4cbafc6bd4
Add new tracing API which is called when core is exiting from idle. Current implementation is using it to track CPU load. Implementation in tracing_none is now weak so it can be used if given backend does not support new API call. When CONFIG_CPU_LOAD is enabled then sys_trace_idle also calls a hook which stores the timing information when CPU entered idle. Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
28 lines
511 B
C
28 lines
511 B
C
/*
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* Copyright (c) 2019 Intel corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/tracing/tracing.h>
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#include <zephyr/debug/cpu_load.h>
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__weak void sys_trace_isr_enter(void) {}
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__weak void sys_trace_isr_exit(void) {}
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__weak void sys_trace_isr_exit_to_scheduler(void) {}
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__weak void sys_trace_idle(void)
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{
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if (IS_ENABLED(CONFIG_CPU_LOAD)) {
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cpu_load_on_enter_idle();
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}
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}
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__weak void sys_trace_idle_exit(void)
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{
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if (IS_ENABLED(CONFIG_CPU_LOAD)) {
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cpu_load_on_exit_idle();
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}
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}
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