512a0200de
All the kernel header files now use pargma once rather than the ifndef, as the pre-processed C files do not change while header files are protected with pargma once. This will also solve any naming issues caused by ifndef.
63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
/*
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* Copyright 2014, General Dynamics C4 Systems
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*
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* SPDX-License-Identifier: GPL-2.0-only
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*/
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#pragma once
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#include <arch/benchmark.h>
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#include <machine/io.h>
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#include <sel4/arch/constants.h>
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#include <arch/machine/hardware.h>
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#include <sel4/benchmark_tracepoints_types.h>
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#include <mode/hardware.h>
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#if CONFIG_MAX_NUM_TRACE_POINTS > 0
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#define TRACE_POINT_START(x) trace_point_start(x)
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#define TRACE_POINT_STOP(x) trace_point_stop(x)
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#define MAX_LOG_SIZE (seL4_LogBufferSize / sizeof(benchmark_tracepoint_log_entry_t))
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extern timestamp_t ksEntries[CONFIG_MAX_NUM_TRACE_POINTS];
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extern bool_t ksStarted[CONFIG_MAX_NUM_TRACE_POINTS];
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extern timestamp_t ksExit;
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extern seL4_Word ksLogIndex;
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extern seL4_Word ksLogIndexFinalized;
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extern paddr_t ksUserLogBuffer;
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static inline void trace_point_start(word_t id)
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{
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ksEntries[id] = timestamp();
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ksStarted[id] = true;
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}
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static inline void trace_point_stop(word_t id)
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{
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benchmark_tracepoint_log_entry_t *ksLog = (benchmark_tracepoint_log_entry_t *) KS_LOG_PPTR;
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ksExit = timestamp();
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if (likely(ksUserLogBuffer != 0)) {
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if (likely(ksStarted[id])) {
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ksStarted[id] = false;
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if (likely(ksLogIndex < MAX_LOG_SIZE)) {
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ksLog[ksLogIndex] = (benchmark_tracepoint_log_entry_t) {
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id, ksExit - ksEntries[id]
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};
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}
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/* increment the log index even if we have exceeded the log size
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* this is so we can tell if we need a bigger log */
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ksLogIndex++;
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}
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/* If this fails integer overflow has occurred. */
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assert(ksLogIndex > 0);
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}
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}
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#else
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#define TRACE_POINT_START(x)
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#define TRACE_POINT_STOP(x)
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#endif /* CONFIG_MAX_NUM_TRACE_POINTS > 0 */
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