sel4-sys 0.0.28

Rust interface to the seL4 kernel
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/*
 * Copyright 2016, General Dynamics C4 Systems
 *
 * This software may be distributed and modified according to the terms of
 * the GNU General Public License version 2. Note that NO WARRANTY is provided.
 * See "LICENSE_GPLv2.txt" for details.
 *
 * @TAG(GD_GPL)
 */

#include <config.h>
#include <benchmark/benchmark_track.h>
#include <model/statedata.h>

#ifdef CONFIG_BENCHMARK_TRACK_KERNEL_ENTRIES

timestamp_t ksEnter;
seL4_Word ksLogIndex;
seL4_Word ksLogIndexFinalized;

void benchmark_track_exit(void)
{
    timestamp_t duration = 0;
    timestamp_t ksExit = timestamp();
    benchmark_track_kernel_entry_t *ksLog = (benchmark_track_kernel_entry_t *) KS_LOG_PPTR;

    if (likely(ksUserLogBuffer != 0)) {
        /* If Log buffer is filled, do nothing */
        if (likely(ksLogIndex < MAX_LOG_SIZE)) {
            duration = ksExit - ksEnter;
            ksLog[ksLogIndex].entry = ksKernelEntry;
            ksLog[ksLogIndex].start_time = ksEnter;
            ksLog[ksLogIndex].duration = duration;
            ksLogIndex++;
        }
    }
}
#endif /* CONFIG_BENCHMARK_TRACK_KERNEL_ENTRIES */