zephyr/samples/userspace/syscall_perf/src/test_user.c
Gerard Marull-Paretas c7b5b3c419 samples: migrate includes to contain <zephyr/...> prefix
In order to bring consistency in-tree, migrate all samples to the use
the new prefix <zephyr/...>. Note that the conversion has been scripted:

```python
from pathlib import Path
import re

EXTENSIONS = ("c", "h", "cpp", "rst")

for p in Path(".").glob("samples/**/*"):
    if not p.is_file() or p.suffix and p.suffix[1:] not in EXTENSIONS:
        continue

    content = ""
    with open(p) as f:
        for line in f:
            m = re.match(r"^(.*)#include <(.*)>(.*)$", line)
            if (m and
                not m.group(2).startswith("zephyr/") and
                (Path(".") / "include" / "zephyr" / m.group(2)).exists()):
                content += (
                    m.group(1) +
                    "#include <zephyr/" + m.group(2) +">" +
                    m.group(3) + "\n"
                )
            else:
                content += line

    with open(p, "w") as f:
        f.write(content)
```

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-05-06 11:29:59 +02:00

52 lines
1.0 KiB
C

/*
* Copyright (c) 2020 BayLibre, SAS
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/zephyr.h>
#include <stdio.h>
#include "main.h"
/*
* 0xC00 is CSR cycle
* 0xC02 is CSR instret
*/
void user_thread_function(void *p1, void *p2, void *p3)
{
register unsigned long cycle_before, cycle_count;
register unsigned long inst_before, inst_count;
k_tid_t thread;
printf("User thread started\n");
while (1) {
k_sleep(K_MSEC(2000));
inst_before = csr_read(0xC02);
cycle_before = csr_read(0xC00);
thread = k_current_get();
cycle_count = csr_read(0xC00);
inst_count = csr_read(0xC02);
if (cycle_count > cycle_before) {
cycle_count -= cycle_before;
} else {
cycle_count += 0xFFFFFFFF - cycle_before;
}
if (inst_count > inst_before) {
inst_count -= inst_before;
} else {
inst_count += 0xFFFFFFFF - inst_before;
}
/* Remove CSR accesses to be more accurate */
inst_count -= 3;
printf("User thread(%p):\t\t%8lu cycles\t%8lu instructions\n",
thread, cycle_count, inst_count);
}
}